/** * \file * mono Ahead of Time compiler * * Author: * Dietmar Maurer (dietmar@ximian.com) * Zoltan Varga (vargaz@gmail.com) * Johan Lorensson (lateralusx.github@gmail.com) * * (C) 2002 Ximian, Inc. * Copyright 2003-2011 Novell, Inc * Copyright 2011 Xamarin Inc (http://www.xamarin.com) * Licensed under the MIT license. See LICENSE file in the project root for full license information. */ #include "config.h" #include #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_STDINT_H #include #endif #include #include #include #ifndef HOST_WIN32 #include #else #include #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "aot-compiler.h" #include "seq-points.h" #include "image-writer.h" #include "dwarfwriter.h" #include "mini-gc.h" #include "mini-llvm.h" #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT) // Use MSVC toolchain, Clang for MSVC using MSVC codegen and linker, when compiling for AMD64 // targeting WIN32 platforms running AOT compiler on WIN32 platform with VS installation. #if defined(TARGET_AMD64) && defined(TARGET_WIN32) && defined(HOST_WIN32) && defined(_MSC_VER) #define TARGET_X86_64_WIN32_MSVC #endif #if defined(TARGET_X86_64_WIN32_MSVC) #define TARGET_WIN32_MSVC #endif #if defined(__linux__) #define RODATA_SECT ".rodata" #elif defined(TARGET_MACH) #define RODATA_SECT ".section __TEXT, __const" #elif defined(TARGET_WIN32_MSVC) #define RODATA_SECT ".rdata" #else #define RODATA_SECT ".text" #endif #define TV_DECLARE(name) gint64 name #define TV_GETTIME(tv) tv = mono_100ns_ticks () #define TV_ELAPSED(start,end) (((end) - (start)) / 10) #define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1)) #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1))) #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1)) typedef struct { char *name; MonoImage *image; } ImageProfileData; typedef struct ClassProfileData ClassProfileData; typedef struct { int argc; ClassProfileData **argv; MonoGenericInst *inst; } GInstProfileData; struct ClassProfileData { ImageProfileData *image; char *ns, *name; GInstProfileData *inst; MonoClass *klass; }; typedef struct { ClassProfileData *klass; int id; char *name; int param_count; char *signature; GInstProfileData *inst; MonoMethod *method; } MethodProfileData; typedef struct { GHashTable *images, *classes, *ginsts, *methods; } ProfileData; /* predefined values for static readonly fields without needed to run the .cctor */ typedef struct _ReadOnlyValue ReadOnlyValue; struct _ReadOnlyValue { ReadOnlyValue *next; char *name; int type; /* to be used later for typechecking to prevent user errors */ union { guint8 i1; guint16 i2; guint32 i4; guint64 i8; gpointer ptr; } value; }; static ReadOnlyValue *readonly_values; typedef struct MonoAotOptions { char *outfile; char *llvm_outfile; char *data_outfile; GList *profile_files; gboolean save_temps; gboolean write_symbols; gboolean metadata_only; gboolean bind_to_runtime_version; MonoAotMode mode; gboolean no_dlsym; gboolean static_link; gboolean asm_only; gboolean asm_writer; gboolean nodebug; gboolean dwarf_debug; gboolean soft_debug; gboolean log_generics; gboolean log_instances; gboolean gen_msym_dir; char *gen_msym_dir_path; gboolean direct_pinvoke; gboolean direct_icalls; gboolean no_direct_calls; gboolean use_trampolines_page; gboolean no_instances; gboolean gnu_asm; gboolean llvm; gboolean llvm_only; int nthreads; int ntrampolines; int nrgctx_trampolines; int nimt_trampolines; int ngsharedvt_arg_trampolines; int nrgctx_fetch_trampolines; gboolean print_skipped_methods; gboolean stats; gboolean verbose; char *tool_prefix; char *ld_flags; char *mtriple; char *llvm_path; char *temp_path; char *instances_logfile_path; char *logfile; gboolean dump_json; gboolean profile_only; } MonoAotOptions; typedef enum { METHOD_CAT_NORMAL, METHOD_CAT_GSHAREDVT, METHOD_CAT_INST, METHOD_CAT_WRAPPER, METHOD_CAT_NUM } MethodCategory; typedef struct MonoAotStats { int ccount, mcount, lmfcount, abscount, gcount, ocount, genericcount; gint64 code_size, info_size, ex_info_size, unwind_info_size, got_size, class_info_size, got_info_size, plt_size; int methods_without_got_slots, direct_calls, all_calls, llvm_count; int got_slots, offsets_size; int method_categories [METHOD_CAT_NUM]; int got_slot_types [MONO_PATCH_INFO_NUM]; int got_slot_info_sizes [MONO_PATCH_INFO_NUM]; int jit_time, gen_time, link_time; } MonoAotStats; typedef struct GotInfo { GHashTable *patch_to_got_offset; GHashTable **patch_to_got_offset_by_type; GPtrArray *got_patches; } GotInfo; typedef struct MonoAotCompile { MonoImage *image; GPtrArray *methods; GHashTable *method_indexes; GHashTable *method_depth; MonoCompile **cfgs; int cfgs_size; GHashTable **patch_to_plt_entry; GHashTable *plt_offset_to_entry; //GHashTable *patch_to_got_offset; //GHashTable **patch_to_got_offset_by_type; //GPtrArray *got_patches; GotInfo got_info, llvm_got_info; GHashTable *image_hash; GHashTable *method_to_cfg; GHashTable *token_info_hash; GHashTable *method_to_pinvoke_import; GPtrArray *extra_methods; GPtrArray *image_table; GPtrArray *globals; GPtrArray *method_order; GHashTable *export_names; /* Maps MonoClass* -> blob offset */ GHashTable *klass_blob_hash; /* Maps MonoMethod* -> blob offset */ GHashTable *method_blob_hash; GHashTable *gsharedvt_in_signatures; GHashTable *gsharedvt_out_signatures; guint32 *plt_got_info_offsets; guint32 got_offset, llvm_got_offset, plt_offset, plt_got_offset_base, nshared_got_entries; /* Number of GOT entries reserved for trampolines */ guint32 num_trampoline_got_entries; guint32 tramp_page_size; guint32 table_offsets [MONO_AOT_TABLE_NUM]; guint32 num_trampolines [MONO_AOT_TRAMP_NUM]; guint32 trampoline_got_offset_base [MONO_AOT_TRAMP_NUM]; guint32 trampoline_size [MONO_AOT_TRAMP_NUM]; guint32 tramp_page_code_offsets [MONO_AOT_TRAMP_NUM]; MonoAotOptions aot_opts; guint32 nmethods; guint32 opts; guint32 simd_opts; MonoMemPool *mempool; MonoAotStats stats; int method_index; char *static_linking_symbol; mono_mutex_t mutex; gboolean gas_line_numbers; /* Whenever to emit an object file directly from llc */ gboolean llvm_owriter; gboolean llvm_owriter_supported; MonoImageWriter *w; MonoDwarfWriter *dwarf; FILE *fp; char *tmpbasename; char *tmpfname; char *llvm_sfile; char *llvm_ofile; GSList *cie_program; GHashTable *unwind_info_offsets; GPtrArray *unwind_ops; guint32 unwind_info_offset; char *global_prefix; char *got_symbol; char *llvm_got_symbol; char *plt_symbol; char *llvm_eh_frame_symbol; GHashTable *method_label_hash; const char *temp_prefix; const char *user_symbol_prefix; const char *llvm_label_prefix; const char *inst_directive; int align_pad_value; guint32 label_generator; gboolean llvm; gboolean has_jitted_code; gboolean is_full_aot; MonoAotFileFlags flags; MonoDynamicStream blob; gboolean blob_closed; GHashTable *typespec_classes; GString *llc_args; GString *as_args; char *assembly_name_sym; GHashTable *plt_entry_debug_sym_cache; gboolean thumb_mixed, need_no_dead_strip, need_pt_gnu_stack; GHashTable *ginst_hash; GHashTable *dwarf_ln_filenames; gboolean global_symbols; int objc_selector_index, objc_selector_index_2; GPtrArray *objc_selectors; GHashTable *objc_selector_to_index; GList *profile_data; GHashTable *profile_methods; FILE *logfile; FILE *instances_logfile; FILE *data_outfile; int datafile_offset; int gc_name_offset; } MonoAotCompile; typedef struct { int plt_offset; char *symbol, *llvm_symbol, *debug_sym; MonoJumpInfo *ji; gboolean jit_used, llvm_used; } MonoPltEntry; #define mono_acfg_lock(acfg) mono_os_mutex_lock (&((acfg)->mutex)) #define mono_acfg_unlock(acfg) mono_os_mutex_unlock (&((acfg)->mutex)) /* This points to the current acfg in LLVM mode */ static MonoAotCompile *llvm_acfg; #ifdef HAVE_ARRAY_ELEM_INIT #define MSGSTRFIELD(line) MSGSTRFIELD1(line) #define MSGSTRFIELD1(line) str##line static const struct msgstr_t { #define PATCH_INFO(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)]; #include "patch-info.h" #undef PATCH_INFO } opstr = { #define PATCH_INFO(a,b) b, #include "patch-info.h" #undef PATCH_INFO }; static const gint16 opidx [] = { #define PATCH_INFO(a,b) [MONO_PATCH_INFO_ ## a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)), #include "patch-info.h" #undef PATCH_INFO }; static G_GNUC_UNUSED const char* get_patch_name (int info) { return (const char*)&opstr + opidx [info]; } #else #define PATCH_INFO(a,b) b, static const char* const patch_types [MONO_PATCH_INFO_NUM + 1] = { #include "patch-info.h" NULL }; static G_GNUC_UNUSED const char* get_patch_name (int info) { return patch_types [info]; } #endif static guint32 get_unwind_info_offset (MonoAotCompile *acfg, guint8 *encoded, guint32 encoded_len); static char* get_plt_entry_debug_sym (MonoAotCompile *acfg, MonoJumpInfo *ji, GHashTable *cache); static void add_gsharedvt_wrappers (MonoAotCompile *acfg, MonoMethodSignature *sig, gboolean gsharedvt_in, gboolean gsharedvt_out); static void add_profile_instances (MonoAotCompile *acfg, ProfileData *data); static void aot_printf (MonoAotCompile *acfg, const gchar *format, ...) { FILE *output; va_list args; if (acfg->logfile) output = acfg->logfile; else output = stdout; va_start (args, format); vfprintf (output, format, args); va_end (args); } static void aot_printerrf (MonoAotCompile *acfg, const gchar *format, ...) { FILE *output; va_list args; if (acfg->logfile) output = acfg->logfile; else output = stderr; va_start (args, format); vfprintf (output, format, args); va_end (args); } static void report_loader_error (MonoAotCompile *acfg, MonoError *error, gboolean fatal, const char *format, ...) { FILE *output; va_list args; if (mono_error_ok (error)) return; if (acfg->logfile) output = acfg->logfile; else output = stderr; va_start (args, format); vfprintf (output, format, args); va_end (args); mono_error_cleanup (error); if (acfg->is_full_aot && fatal) { fprintf (output, "FullAOT cannot continue if there are loader errors.\n"); exit (1); } } /* Wrappers around the image writer functions */ #define MAX_SYMBOL_SIZE 256 static inline const char * mangle_symbol (const char * symbol, char * mangled_symbol, gsize length) { gsize needed_size = length; g_assert (NULL != symbol); g_assert (NULL != mangled_symbol); g_assert (0 != length); #if defined(TARGET_WIN32) && defined(TARGET_X86) if (symbol && '_' != symbol [0]) { needed_size = g_snprintf (mangled_symbol, length, "_%s", symbol); } else { needed_size = g_snprintf (mangled_symbol, length, "%s", symbol); } #else needed_size = g_snprintf (mangled_symbol, length, "%s", symbol); #endif g_assert (0 <= needed_size && needed_size < length); return mangled_symbol; } static inline char * mangle_symbol_alloc (const char * symbol) { g_assert (NULL != symbol); #if defined(TARGET_WIN32) && defined(TARGET_X86) if (symbol && '_' != symbol [0]) { return g_strdup_printf ("_%s", symbol); } else { return g_strdup_printf ("%s", symbol); } #else return g_strdup_printf ("%s", symbol); #endif } static inline void emit_section_change (MonoAotCompile *acfg, const char *section_name, int subsection_index) { mono_img_writer_emit_section_change (acfg->w, section_name, subsection_index); } #if defined(TARGET_WIN32) && defined(TARGET_X86) static inline void emit_local_symbol (MonoAotCompile *acfg, const char *name, const char *end_label, gboolean func) { const char * mangled_symbol_name = name; char * mangled_symbol_name_alloc = NULL; if (TRUE == func) { mangled_symbol_name_alloc = mangle_symbol_alloc (name); mangled_symbol_name = mangled_symbol_name_alloc; } if (name != mangled_symbol_name && 0 != g_strcasecmp (name, mangled_symbol_name)) { mono_img_writer_emit_label (acfg->w, mangled_symbol_name); } mono_img_writer_emit_local_symbol (acfg->w, mangled_symbol_name, end_label, func); if (NULL != mangled_symbol_name_alloc) { g_free (mangled_symbol_name_alloc); } } #else static inline void emit_local_symbol (MonoAotCompile *acfg, const char *name, const char *end_label, gboolean func) { mono_img_writer_emit_local_symbol (acfg->w, name, end_label, func); } #endif static inline void emit_label (MonoAotCompile *acfg, const char *name) { mono_img_writer_emit_label (acfg->w, name); } static inline void emit_bytes (MonoAotCompile *acfg, const guint8* buf, int size) { mono_img_writer_emit_bytes (acfg->w, buf, size); } static inline void emit_string (MonoAotCompile *acfg, const char *value) { mono_img_writer_emit_string (acfg->w, value); } static inline void emit_line (MonoAotCompile *acfg) { mono_img_writer_emit_line (acfg->w); } static inline void emit_alignment (MonoAotCompile *acfg, int size) { mono_img_writer_emit_alignment (acfg->w, size); } static inline void emit_alignment_code (MonoAotCompile *acfg, int size) { if (acfg->align_pad_value) mono_img_writer_emit_alignment_fill (acfg->w, size, acfg->align_pad_value); else mono_img_writer_emit_alignment (acfg->w, size); } static inline void emit_padding (MonoAotCompile *acfg, int size) { int i; guint8 buf [16]; if (acfg->align_pad_value) { for (i = 0; i < 16; ++i) buf [i] = acfg->align_pad_value; } else { memset (buf, 0, sizeof (buf)); } for (i = 0; i < size; i += 16) { if (size - i < 16) emit_bytes (acfg, buf, size - i); else emit_bytes (acfg, buf, 16); } } static inline void emit_pointer (MonoAotCompile *acfg, const char *target) { mono_img_writer_emit_pointer (acfg->w, target); } static inline void emit_pointer_2 (MonoAotCompile *acfg, const char *prefix, const char *target) { if (prefix [0] != '\0') { char *s = g_strdup_printf ("%s%s", prefix, target); mono_img_writer_emit_pointer (acfg->w, s); g_free (s); } else { mono_img_writer_emit_pointer (acfg->w, target); } } static inline void emit_int16 (MonoAotCompile *acfg, int value) { mono_img_writer_emit_int16 (acfg->w, value); } static inline void emit_int32 (MonoAotCompile *acfg, int value) { mono_img_writer_emit_int32 (acfg->w, value); } static inline void emit_symbol_diff (MonoAotCompile *acfg, const char *end, const char* start, int offset) { mono_img_writer_emit_symbol_diff (acfg->w, end, start, offset); } static inline void emit_zero_bytes (MonoAotCompile *acfg, int num) { mono_img_writer_emit_zero_bytes (acfg->w, num); } static inline void emit_byte (MonoAotCompile *acfg, guint8 val) { mono_img_writer_emit_byte (acfg->w, val); } #if defined(TARGET_WIN32) && defined(TARGET_X86) static G_GNUC_UNUSED void emit_global_inner (MonoAotCompile *acfg, const char *name, gboolean func) { const char * mangled_symbol_name = name; char * mangled_symbol_name_alloc = NULL; mangled_symbol_name_alloc = mangle_symbol_alloc (name); mangled_symbol_name = mangled_symbol_name_alloc; if (0 != g_strcasecmp (name, mangled_symbol_name)) { mono_img_writer_emit_label (acfg->w, mangled_symbol_name); } mono_img_writer_emit_global (acfg->w, mangled_symbol_name, func); if (NULL != mangled_symbol_name_alloc) { g_free (mangled_symbol_name_alloc); } } #else static G_GNUC_UNUSED void emit_global_inner (MonoAotCompile *acfg, const char *name, gboolean func) { mono_img_writer_emit_global (acfg->w, name, func); } #endif static inline gboolean link_shared_library (MonoAotCompile *acfg) { return !acfg->aot_opts.static_link && !acfg->aot_opts.asm_only; } static inline gboolean add_to_global_symbol_table (MonoAotCompile *acfg) { #ifdef TARGET_WIN32_MSVC return acfg->aot_opts.no_dlsym || link_shared_library (acfg); #else return acfg->aot_opts.no_dlsym; #endif } static void emit_global (MonoAotCompile *acfg, const char *name, gboolean func) { if (add_to_global_symbol_table (acfg)) g_ptr_array_add (acfg->globals, g_strdup (name)); if (acfg->aot_opts.no_dlsym) { mono_img_writer_emit_local_symbol (acfg->w, name, NULL, func); } else { emit_global_inner (acfg, name, func); } } static void emit_symbol_size (MonoAotCompile *acfg, const char *name, const char *end_label) { mono_img_writer_emit_symbol_size (acfg->w, name, end_label); } /* Emit a symbol which is referenced by the MonoAotFileInfo structure */ static void emit_info_symbol (MonoAotCompile *acfg, const char *name) { char symbol [MAX_SYMBOL_SIZE]; if (acfg->llvm) { emit_label (acfg, name); /* LLVM generated code references this */ sprintf (symbol, "%s%s%s", acfg->user_symbol_prefix, acfg->global_prefix, name); emit_label (acfg, symbol); emit_global_inner (acfg, symbol, FALSE); } else { emit_label (acfg, name); } } static void emit_string_symbol (MonoAotCompile *acfg, const char *name, const char *value) { if (acfg->llvm) { mono_llvm_emit_aot_data (name, (guint8*)value, strlen (value) + 1); return; } mono_img_writer_emit_section_change (acfg->w, RODATA_SECT, 1); #ifdef TARGET_MACH /* On apple, all symbols need to be aligned to avoid warnings from ld */ emit_alignment (acfg, 4); #endif mono_img_writer_emit_label (acfg->w, name); mono_img_writer_emit_string (acfg->w, value); } static G_GNUC_UNUSED void emit_uleb128 (MonoAotCompile *acfg, guint32 value) { do { guint8 b = value & 0x7f; value >>= 7; if (value != 0) /* more bytes to come */ b |= 0x80; emit_byte (acfg, b); } while (value); } static G_GNUC_UNUSED void emit_sleb128 (MonoAotCompile *acfg, gint64 value) { gboolean more = 1; gboolean negative = (value < 0); guint32 size = 64; guint8 byte; while (more) { byte = value & 0x7f; value >>= 7; /* the following is unnecessary if the * implementation of >>= uses an arithmetic rather * than logical shift for a signed left operand */ if (negative) /* sign extend */ value |= - ((gint64)1 <<(size - 7)); /* sign bit of byte is second high order bit (0x40) */ if ((value == 0 && !(byte & 0x40)) || (value == -1 && (byte & 0x40))) more = 0; else byte |= 0x80; emit_byte (acfg, byte); } } static G_GNUC_UNUSED void encode_uleb128 (guint32 value, guint8 *buf, guint8 **endbuf) { guint8 *p = buf; do { guint8 b = value & 0x7f; value >>= 7; if (value != 0) /* more bytes to come */ b |= 0x80; *p ++ = b; } while (value); *endbuf = p; } static G_GNUC_UNUSED void encode_sleb128 (gint32 value, guint8 *buf, guint8 **endbuf) { gboolean more = 1; gboolean negative = (value < 0); guint32 size = 32; guint8 byte; guint8 *p = buf; while (more) { byte = value & 0x7f; value >>= 7; /* the following is unnecessary if the * implementation of >>= uses an arithmetic rather * than logical shift for a signed left operand */ if (negative) /* sign extend */ value |= - (1 <<(size - 7)); /* sign bit of byte is second high order bit (0x40) */ if ((value == 0 && !(byte & 0x40)) || (value == -1 && (byte & 0x40))) more = 0; else byte |= 0x80; *p ++= byte; } *endbuf = p; } static void encode_int (gint32 val, guint8 *buf, guint8 **endbuf) { // FIXME: Big-endian buf [0] = (val >> 0) & 0xff; buf [1] = (val >> 8) & 0xff; buf [2] = (val >> 16) & 0xff; buf [3] = (val >> 24) & 0xff; *endbuf = buf + 4; } static void encode_int16 (guint16 val, guint8 *buf, guint8 **endbuf) { buf [0] = (val >> 0) & 0xff; buf [1] = (val >> 8) & 0xff; *endbuf = buf + 2; } static void encode_string (const char *s, guint8 *buf, guint8 **endbuf) { int len = strlen (s); memcpy (buf, s, len + 1); *endbuf = buf + len + 1; } static void emit_unset_mode (MonoAotCompile *acfg) { mono_img_writer_emit_unset_mode (acfg->w); } static G_GNUC_UNUSED void emit_set_thumb_mode (MonoAotCompile *acfg) { emit_unset_mode (acfg); fprintf (acfg->fp, ".code 16\n"); } static G_GNUC_UNUSED void emit_set_arm_mode (MonoAotCompile *acfg) { emit_unset_mode (acfg); fprintf (acfg->fp, ".code 32\n"); } static inline void emit_code_bytes (MonoAotCompile *acfg, const guint8* buf, int size) { #ifdef TARGET_ARM64 int i; g_assert (size % 4 == 0); emit_unset_mode (acfg); for (i = 0; i < size; i += 4) fprintf (acfg->fp, "%s 0x%x\n", acfg->inst_directive, *(guint32*)(buf + i)); #else emit_bytes (acfg, buf, size); #endif } /* ARCHITECTURE SPECIFIC CODE */ #if defined(TARGET_X86) || defined(TARGET_AMD64) || defined(TARGET_ARM) || defined(TARGET_POWERPC) || defined(TARGET_ARM64) #define EMIT_DWARF_INFO 1 #endif #ifdef TARGET_WIN32_MSVC #undef EMIT_DWARF_INFO #endif #if defined(TARGET_ARM) #define AOT_FUNC_ALIGNMENT 4 #else #define AOT_FUNC_ALIGNMENT 16 #endif #if defined(TARGET_POWERPC64) && !defined(__mono_ilp32__) #define PPC_LD_OP "ld" #define PPC_LDX_OP "ldx" #else #define PPC_LD_OP "lwz" #define PPC_LDX_OP "lwzx" #endif #ifdef TARGET_X86_64_WIN32_MSVC #define AOT_TARGET_STR "AMD64 (WIN32) (MSVC codegen)" #elif TARGET_AMD64 #define AOT_TARGET_STR "AMD64" #endif #ifdef TARGET_ARM #ifdef TARGET_MACH #define AOT_TARGET_STR "ARM (MACH)" #else #define AOT_TARGET_STR "ARM (!MACH)" #endif #endif #ifdef TARGET_ARM64 #ifdef TARGET_MACH #define AOT_TARGET_STR "ARM64 (MACH)" #else #define AOT_TARGET_STR "ARM64 (!MACH)" #endif #endif #ifdef TARGET_POWERPC64 #ifdef __mono_ilp32__ #define AOT_TARGET_STR "POWERPC64 (mono ilp32)" #else #define AOT_TARGET_STR "POWERPC64 (!mono ilp32)" #endif #else #ifdef TARGET_POWERPC #ifdef __mono_ilp32__ #define AOT_TARGET_STR "POWERPC (mono ilp32)" #else #define AOT_TARGET_STR "POWERPC (!mono ilp32)" #endif #endif #endif #ifdef TARGET_X86 #ifdef TARGET_WIN32 #define AOT_TARGET_STR "X86 (WIN32)" #else #define AOT_TARGET_STR "X86" #endif #endif #ifndef AOT_TARGET_STR #define AOT_TARGET_STR "" #endif static void arch_init (MonoAotCompile *acfg) { acfg->llc_args = g_string_new (""); acfg->as_args = g_string_new (""); acfg->llvm_owriter_supported = TRUE; /* * The prefix LLVM likes to put in front of symbol names on darwin. * The mach-os specs require this for globals, but LLVM puts them in front of all * symbols. We need to handle this, since we need to refer to LLVM generated * symbols. */ acfg->llvm_label_prefix = ""; acfg->user_symbol_prefix = ""; #if defined(TARGET_X86) g_string_append (acfg->llc_args, " -march=x86 -mattr=sse4.1"); #endif #if defined(TARGET_AMD64) g_string_append (acfg->llc_args, " -march=x86-64 -mattr=sse4.1"); /* NOP */ acfg->align_pad_value = 0x90; #endif #ifdef TARGET_ARM if (acfg->aot_opts.mtriple && strstr (acfg->aot_opts.mtriple, "darwin")) { g_string_append (acfg->llc_args, "-mattr=+v6"); } else { #if defined(ARM_FPU_VFP_HARD) g_string_append (acfg->llc_args, " -mattr=+vfp2,-neon,+d16 -float-abi=hard"); g_string_append (acfg->as_args, " -mfpu=vfp3"); #elif defined(ARM_FPU_VFP) g_string_append (acfg->llc_args, " -mattr=+vfp2,-neon,+d16"); g_string_append (acfg->as_args, " -mfpu=vfp3"); #else g_string_append (acfg->llc_args, " -soft-float"); #endif } if (acfg->aot_opts.mtriple && strstr (acfg->aot_opts.mtriple, "thumb")) acfg->thumb_mixed = TRUE; if (acfg->aot_opts.mtriple) mono_arch_set_target (acfg->aot_opts.mtriple); #endif #ifdef TARGET_ARM64 acfg->inst_directive = ".inst"; if (acfg->aot_opts.mtriple) mono_arch_set_target (acfg->aot_opts.mtriple); #endif #ifdef TARGET_MACH acfg->user_symbol_prefix = "_"; acfg->llvm_label_prefix = "_"; acfg->inst_directive = ".word"; acfg->need_no_dead_strip = TRUE; acfg->aot_opts.gnu_asm = TRUE; #endif #if defined(__linux__) && !defined(TARGET_ARM) acfg->need_pt_gnu_stack = TRUE; #endif #ifdef MONOTOUCH acfg->global_symbols = TRUE; #endif #ifdef TARGET_ANDROID acfg->llvm_owriter_supported = FALSE; #endif } #ifdef TARGET_ARM64 /* Load the contents of GOT_SLOT into dreg, clobbering ip0 */ static void arm64_emit_load_got_slot (MonoAotCompile *acfg, int dreg, int got_slot) { int offset; g_assert (acfg->fp); emit_unset_mode (acfg); /* r16==ip0 */ offset = (int)(got_slot * sizeof (gpointer)); #ifdef TARGET_MACH /* clang's integrated assembler */ fprintf (acfg->fp, "adrp x16, %s@PAGE+%d\n", acfg->got_symbol, offset & 0xfffff000); fprintf (acfg->fp, "add x16, x16, %s@PAGEOFF\n", acfg->got_symbol); fprintf (acfg->fp, "ldr x%d, [x16, #%d]\n", dreg, offset & 0xfff); #else /* Linux GAS */ fprintf (acfg->fp, "adrp x16, %s+%d\n", acfg->got_symbol, offset & 0xfffff000); fprintf (acfg->fp, "add x16, x16, :lo12:%s\n", acfg->got_symbol); fprintf (acfg->fp, "ldr x%d, [x16, %d]\n", dreg, offset & 0xfff); #endif } static void arm64_emit_objc_selector_ref (MonoAotCompile *acfg, guint8 *code, int index, int *code_size) { int reg; g_assert (acfg->fp); emit_unset_mode (acfg); /* ldr rt, target */ reg = arm_get_ldr_lit_reg (code); fprintf (acfg->fp, "adrp x%d, L_OBJC_SELECTOR_REFERENCES_%d@PAGE\n", reg, index); fprintf (acfg->fp, "add x%d, x%d, L_OBJC_SELECTOR_REFERENCES_%d@PAGEOFF\n", reg, reg, index); fprintf (acfg->fp, "ldr x%d, [x%d]\n", reg, reg); *code_size = 12; } static void arm64_emit_direct_call (MonoAotCompile *acfg, const char *target, gboolean external, gboolean thumb, MonoJumpInfo *ji, int *call_size) { g_assert (acfg->fp); emit_unset_mode (acfg); if (ji && ji->relocation == MONO_R_ARM64_B) { fprintf (acfg->fp, "b %s\n", target); } else { if (ji) g_assert (ji->relocation == MONO_R_ARM64_BL); fprintf (acfg->fp, "bl %s\n", target); } *call_size = 4; } static void arm64_emit_got_access (MonoAotCompile *acfg, guint8 *code, int got_slot, int *code_size) { int reg; /* ldr rt, target */ reg = arm_get_ldr_lit_reg (code); arm64_emit_load_got_slot (acfg, reg, got_slot); *code_size = 12; } static void arm64_emit_plt_entry (MonoAotCompile *acfg, const char *got_symbol, int offset, int info_offset) { arm64_emit_load_got_slot (acfg, ARMREG_R16, offset / sizeof (gpointer)); fprintf (acfg->fp, "br x16\n"); /* Used by mono_aot_get_plt_info_offset () */ fprintf (acfg->fp, "%s %d\n", acfg->inst_directive, info_offset); } static void arm64_emit_tramp_page_common_code (MonoAotCompile *acfg, int pagesize, int arg_reg, int *size) { guint8 buf [256]; guint8 *code; int imm; /* The common code */ code = buf; imm = pagesize; /* The trampoline address is in IP0 */ arm_movzx (code, ARMREG_IP1, imm & 0xffff, 0); arm_movkx (code, ARMREG_IP1, (imm >> 16) & 0xffff, 16); /* Compute the data slot address */ arm_subx (code, ARMREG_IP0, ARMREG_IP0, ARMREG_IP1); /* Trampoline argument */ arm_ldrx (code, arg_reg, ARMREG_IP0, 0); /* Address */ arm_ldrx (code, ARMREG_IP0, ARMREG_IP0, 8); arm_brx (code, ARMREG_IP0); /* Emit it */ emit_code_bytes (acfg, buf, code - buf); *size = code - buf; } static void arm64_emit_tramp_page_specific_code (MonoAotCompile *acfg, int pagesize, int common_tramp_size, int specific_tramp_size) { guint8 buf [256]; guint8 *code; int i, count; count = (pagesize - common_tramp_size) / specific_tramp_size; for (i = 0; i < count; ++i) { code = buf; arm_adrx (code, ARMREG_IP0, code); /* Branch to the generic code */ arm_b (code, code - 4 - (i * specific_tramp_size) - common_tramp_size); /* This has to be 2 pointers long */ arm_nop (code); arm_nop (code); g_assert (code - buf == specific_tramp_size); emit_code_bytes (acfg, buf, code - buf); } } static void arm64_emit_specific_trampoline_pages (MonoAotCompile *acfg) { guint8 buf [128]; guint8 *code; guint8 *labels [16]; int common_tramp_size; int specific_tramp_size = 2 * 8; int imm, pagesize; char symbol [128]; if (!acfg->aot_opts.use_trampolines_page) return; #ifdef TARGET_MACH /* Have to match the target pagesize */ pagesize = 16384; #else pagesize = mono_pagesize (); #endif acfg->tramp_page_size = pagesize; /* The specific trampolines */ sprintf (symbol, "%sspecific_trampolines_page", acfg->user_symbol_prefix); emit_alignment (acfg, pagesize); emit_global (acfg, symbol, TRUE); emit_label (acfg, symbol); /* The common code */ arm64_emit_tramp_page_common_code (acfg, pagesize, ARMREG_IP1, &common_tramp_size); acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_SPECIFIC] = common_tramp_size; arm64_emit_tramp_page_specific_code (acfg, pagesize, common_tramp_size, specific_tramp_size); /* The rgctx trampolines */ /* These are the same as the specific trampolines, but they load the argument into MONO_ARCH_RGCTX_REG */ sprintf (symbol, "%srgctx_trampolines_page", acfg->user_symbol_prefix); emit_alignment (acfg, pagesize); emit_global (acfg, symbol, TRUE); emit_label (acfg, symbol); /* The common code */ arm64_emit_tramp_page_common_code (acfg, pagesize, MONO_ARCH_RGCTX_REG, &common_tramp_size); acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_STATIC_RGCTX] = common_tramp_size; arm64_emit_tramp_page_specific_code (acfg, pagesize, common_tramp_size, specific_tramp_size); /* The gsharedvt arg trampolines */ /* These are the same as the specific trampolines */ sprintf (symbol, "%sgsharedvt_arg_trampolines_page", acfg->user_symbol_prefix); emit_alignment (acfg, pagesize); emit_global (acfg, symbol, TRUE); emit_label (acfg, symbol); arm64_emit_tramp_page_common_code (acfg, pagesize, ARMREG_IP1, &common_tramp_size); acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_GSHAREDVT_ARG] = common_tramp_size; arm64_emit_tramp_page_specific_code (acfg, pagesize, common_tramp_size, specific_tramp_size); /* The IMT trampolines */ sprintf (symbol, "%simt_trampolines_page", acfg->user_symbol_prefix); emit_alignment (acfg, pagesize); emit_global (acfg, symbol, TRUE); emit_label (acfg, symbol); code = buf; imm = pagesize; /* The trampoline address is in IP0 */ arm_movzx (code, ARMREG_IP1, imm & 0xffff, 0); arm_movkx (code, ARMREG_IP1, (imm >> 16) & 0xffff, 16); /* Compute the data slot address */ arm_subx (code, ARMREG_IP0, ARMREG_IP0, ARMREG_IP1); /* Trampoline argument */ arm_ldrx (code, ARMREG_IP1, ARMREG_IP0, 0); /* Same as arch_emit_imt_trampoline () */ labels [0] = code; arm_ldrx (code, ARMREG_IP0, ARMREG_IP1, 0); arm_cmpx (code, ARMREG_IP0, MONO_ARCH_RGCTX_REG); labels [1] = code; arm_bcc (code, ARMCOND_EQ, 0); /* End-of-loop check */ labels [2] = code; arm_cbzx (code, ARMREG_IP0, 0); /* Loop footer */ arm_addx_imm (code, ARMREG_IP1, ARMREG_IP1, 2 * 8); arm_b (code, labels [0]); /* Match */ mono_arm_patch (labels [1], code, MONO_R_ARM64_BCC); /* Load vtable slot addr */ arm_ldrx (code, ARMREG_IP0, ARMREG_IP1, 8); /* Load vtable slot */ arm_ldrx (code, ARMREG_IP0, ARMREG_IP0, 0); arm_brx (code, ARMREG_IP0); /* No match */ mono_arm_patch (labels [2], code, MONO_R_ARM64_CBZ); /* Load fail addr */ arm_ldrx (code, ARMREG_IP0, ARMREG_IP1, 8); arm_brx (code, ARMREG_IP0); emit_code_bytes (acfg, buf, code - buf); common_tramp_size = code - buf; acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_IMT] = common_tramp_size; arm64_emit_tramp_page_specific_code (acfg, pagesize, common_tramp_size, specific_tramp_size); } static void arm64_emit_specific_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size) { /* Load argument from second GOT slot */ arm64_emit_load_got_slot (acfg, ARMREG_R17, offset + 1); /* Load generic trampoline address from first GOT slot */ arm64_emit_load_got_slot (acfg, ARMREG_R16, offset); fprintf (acfg->fp, "br x16\n"); *tramp_size = 7 * 4; } static void arm64_emit_unbox_trampoline (MonoAotCompile *acfg, MonoCompile *cfg, MonoMethod *method, const char *call_target) { emit_unset_mode (acfg); fprintf (acfg->fp, "add x0, x0, %d\n", (int)(sizeof (MonoObject))); fprintf (acfg->fp, "b %s\n", call_target); } static void arm64_emit_static_rgctx_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size) { /* Similar to the specific trampolines, but use the rgctx reg instead of ip1 */ /* Load argument from first GOT slot */ arm64_emit_load_got_slot (acfg, MONO_ARCH_RGCTX_REG, offset); /* Load generic trampoline address from second GOT slot */ arm64_emit_load_got_slot (acfg, ARMREG_R16, offset + 1); fprintf (acfg->fp, "br x16\n"); *tramp_size = 7 * 4; } static void arm64_emit_imt_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size) { guint8 buf [128]; guint8 *code, *labels [16]; /* Load parameter from GOT slot into ip1 */ arm64_emit_load_got_slot (acfg, ARMREG_R17, offset); code = buf; labels [0] = code; arm_ldrx (code, ARMREG_IP0, ARMREG_IP1, 0); arm_cmpx (code, ARMREG_IP0, MONO_ARCH_RGCTX_REG); labels [1] = code; arm_bcc (code, ARMCOND_EQ, 0); /* End-of-loop check */ labels [2] = code; arm_cbzx (code, ARMREG_IP0, 0); /* Loop footer */ arm_addx_imm (code, ARMREG_IP1, ARMREG_IP1, 2 * 8); arm_b (code, labels [0]); /* Match */ mono_arm_patch (labels [1], code, MONO_R_ARM64_BCC); /* Load vtable slot addr */ arm_ldrx (code, ARMREG_IP0, ARMREG_IP1, 8); /* Load vtable slot */ arm_ldrx (code, ARMREG_IP0, ARMREG_IP0, 0); arm_brx (code, ARMREG_IP0); /* No match */ mono_arm_patch (labels [2], code, MONO_R_ARM64_CBZ); /* Load fail addr */ arm_ldrx (code, ARMREG_IP0, ARMREG_IP1, 8); arm_brx (code, ARMREG_IP0); emit_code_bytes (acfg, buf, code - buf); *tramp_size = code - buf + (3 * 4); } static void arm64_emit_gsharedvt_arg_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size) { /* Similar to the specific trampolines, but the address is in the second slot */ /* Load argument from first GOT slot */ arm64_emit_load_got_slot (acfg, ARMREG_R17, offset); /* Load generic trampoline address from second GOT slot */ arm64_emit_load_got_slot (acfg, ARMREG_R16, offset + 1); fprintf (acfg->fp, "br x16\n"); *tramp_size = 7 * 4; } #endif #ifdef MONO_ARCH_AOT_SUPPORTED /* * arch_emit_direct_call: * * Emit a direct call to the symbol TARGET. CALL_SIZE is set to the size of the * calling code. */ static void arch_emit_direct_call (MonoAotCompile *acfg, const char *target, gboolean external, gboolean thumb, MonoJumpInfo *ji, int *call_size) { #if defined(TARGET_X86) || defined(TARGET_AMD64) /* Need to make sure this is exactly 5 bytes long */ emit_unset_mode (acfg); fprintf (acfg->fp, "call %s\n", target); *call_size = 5; #elif defined(TARGET_ARM) emit_unset_mode (acfg); if (thumb) fprintf (acfg->fp, "blx %s\n", target); else fprintf (acfg->fp, "bl %s\n", target); *call_size = 4; #elif defined(TARGET_ARM64) arm64_emit_direct_call (acfg, target, external, thumb, ji, call_size); #elif defined(TARGET_POWERPC) emit_unset_mode (acfg); fprintf (acfg->fp, "bl %s\n", target); *call_size = 4; #else g_assert_not_reached (); #endif } #endif /* * PPC32 design: * - we use an approach similar to the x86 abi: reserve a register (r30) to hold * the GOT pointer. * - The full-aot trampolines need access to the GOT of mscorlib, so we store * in in the 2. slot of every GOT, and require every method to place the GOT * address in r30, even when it doesn't access the GOT otherwise. This way, * the trampolines can compute the mscorlib GOT address by loading 4(r30). */ /* * PPC64 design: * PPC64 uses function descriptors which greatly complicate all code, since * these are used very inconsistently in the runtime. Some functions like * mono_compile_method () return ftn descriptors, while others like the * trampoline creation functions do not. * We assume that all GOT slots contain function descriptors, and create * descriptors in aot-runtime.c when needed. * The ppc64 abi uses r2 to hold the address of the TOC/GOT, which is loaded * from function descriptors, we could do the same, but it would require * rewriting all the ppc/aot code to handle function descriptors properly. * So instead, we use the same approach as on PPC32. * This is a horrible mess, but fixing it would probably lead to an even bigger * one. */ /* * X86 design: * - similar to the PPC32 design, we reserve EBX to hold the GOT pointer. */ #ifdef MONO_ARCH_AOT_SUPPORTED /* * arch_emit_got_offset: * * The memory pointed to by CODE should hold native code for computing the GOT * address (OP_LOAD_GOTADDR). Emit this code while patching it with the offset * between code and the GOT. CODE_SIZE is set to the number of bytes emitted. */ static void arch_emit_got_offset (MonoAotCompile *acfg, guint8 *code, int *code_size) { #if defined(TARGET_POWERPC64) emit_unset_mode (acfg); /* * The ppc32 code doesn't seem to work on ppc64, the assembler complains about * unsupported relocations. So we store the got address into the .Lgot_addr * symbol which is in the text segment, compute its address, and load it. */ fprintf (acfg->fp, ".L%d:\n", acfg->label_generator); fprintf (acfg->fp, "lis 0, (.Lgot_addr + 4 - .L%d)@h\n", acfg->label_generator); fprintf (acfg->fp, "ori 0, 0, (.Lgot_addr + 4 - .L%d)@l\n", acfg->label_generator); fprintf (acfg->fp, "add 30, 30, 0\n"); fprintf (acfg->fp, "%s 30, 0(30)\n", PPC_LD_OP); acfg->label_generator ++; *code_size = 16; #elif defined(TARGET_POWERPC) emit_unset_mode (acfg); fprintf (acfg->fp, ".L%d:\n", acfg->label_generator); fprintf (acfg->fp, "lis 0, (%s + 4 - .L%d)@h\n", acfg->got_symbol, acfg->label_generator); fprintf (acfg->fp, "ori 0, 0, (%s + 4 - .L%d)@l\n", acfg->got_symbol, acfg->label_generator); acfg->label_generator ++; *code_size = 8; #else guint32 offset = mono_arch_get_patch_offset (code); emit_bytes (acfg, code, offset); emit_symbol_diff (acfg, acfg->got_symbol, ".", offset); *code_size = offset + 4; #endif } /* * arch_emit_got_access: * * The memory pointed to by CODE should hold native code for loading a GOT * slot (OP_AOTCONST/OP_GOT_ENTRY). Emit this code while patching it so it accesses the * GOT slot GOT_SLOT. CODE_SIZE is set to the number of bytes emitted. */ static void arch_emit_got_access (MonoAotCompile *acfg, const char *got_symbol, guint8 *code, int got_slot, int *code_size) { #ifdef TARGET_AMD64 /* mov reg, got+offset(%rip) */ if (acfg->llvm) { /* The GOT symbol is in the LLVM module, the clang assembler has problems emitting symbol diffs for it */ int dreg; int rex_r; /* Decode reg, see amd64_mov_reg_membase () */ rex_r = code [0] & AMD64_REX_R; g_assert (code [0] == 0x49 + rex_r); g_assert (code [1] == 0x8b); dreg = ((code [2] >> 3) & 0x7) + (rex_r ? 8 : 0); emit_unset_mode (acfg); fprintf (acfg->fp, "mov %s+%d(%%rip), %s\n", got_symbol, (unsigned int) ((got_slot * sizeof (gpointer))), mono_arch_regname (dreg)); *code_size = 7; } else { emit_bytes (acfg, code, mono_arch_get_patch_offset (code)); emit_symbol_diff (acfg, got_symbol, ".", (unsigned int) ((got_slot * sizeof (gpointer)) - 4)); *code_size = mono_arch_get_patch_offset (code) + 4; } #elif defined(TARGET_X86) emit_bytes (acfg, code, mono_arch_get_patch_offset (code)); emit_int32 (acfg, (unsigned int) ((got_slot * sizeof (gpointer)))); *code_size = mono_arch_get_patch_offset (code) + 4; #elif defined(TARGET_ARM) emit_bytes (acfg, code, mono_arch_get_patch_offset (code)); emit_symbol_diff (acfg, got_symbol, ".", (unsigned int) ((got_slot * sizeof (gpointer))) - 12); *code_size = mono_arch_get_patch_offset (code) + 4; #elif defined(TARGET_ARM64) emit_bytes (acfg, code, mono_arch_get_patch_offset (code)); arm64_emit_got_access (acfg, code, got_slot, code_size); #elif defined(TARGET_POWERPC) { guint8 buf [32]; emit_bytes (acfg, code, mono_arch_get_patch_offset (code)); code = buf; ppc_load32 (code, ppc_r0, got_slot * sizeof (gpointer)); g_assert (code - buf == 8); emit_bytes (acfg, buf, code - buf); *code_size = code - buf; } #else g_assert_not_reached (); #endif } #endif #ifdef MONO_ARCH_AOT_SUPPORTED /* * arch_emit_objc_selector_ref: * * Emit the implementation of OP_OBJC_GET_SELECTOR, which itself implements @selector(foo:) in objective-c. */ static void arch_emit_objc_selector_ref (MonoAotCompile *acfg, guint8 *code, int index, int *code_size) { #if defined(TARGET_ARM) char symbol1 [MAX_SYMBOL_SIZE]; char symbol2 [MAX_SYMBOL_SIZE]; int lindex = acfg->objc_selector_index_2 ++; /* Emit ldr.imm/b */ emit_bytes (acfg, code, 8); sprintf (symbol1, "L_OBJC_SELECTOR_%d", lindex); sprintf (symbol2, "L_OBJC_SELECTOR_REFERENCES_%d", index); emit_label (acfg, symbol1); mono_img_writer_emit_unset_mode (acfg->w); fprintf (acfg->fp, ".long %s-(%s+12)", symbol2, symbol1); *code_size = 12; #elif defined(TARGET_ARM64) arm64_emit_objc_selector_ref (acfg, code, index, code_size); #else g_assert_not_reached (); #endif } #endif /* * arch_emit_plt_entry: * * Emit code for the PLT entry. * The plt entry should look like this: * * */ static void arch_emit_plt_entry (MonoAotCompile *acfg, const char *got_symbol, int offset, int info_offset) { #if defined(TARGET_X86) /* jmp *(%ebx) */ emit_byte (acfg, 0xff); emit_byte (acfg, 0xa3); emit_int32 (acfg, offset); /* Used by mono_aot_get_plt_info_offset */ emit_int32 (acfg, info_offset); #elif defined(TARGET_AMD64) emit_unset_mode (acfg); fprintf (acfg->fp, "jmp *%s+%d(%%rip)\n", got_symbol, offset); /* Used by mono_aot_get_plt_info_offset */ emit_int32 (acfg, info_offset); acfg->stats.plt_size += 10; #elif defined(TARGET_ARM) guint8 buf [256]; guint8 *code; code = buf; ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 0); ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_IP); emit_bytes (acfg, buf, code - buf); emit_symbol_diff (acfg, got_symbol, ".", offset - 4); /* Used by mono_aot_get_plt_info_offset */ emit_int32 (acfg, info_offset); #elif defined(TARGET_ARM64) arm64_emit_plt_entry (acfg, got_symbol, offset, info_offset); #elif defined(TARGET_POWERPC) /* The GOT address is guaranteed to be in r30 by OP_LOAD_GOTADDR */ emit_unset_mode (acfg); fprintf (acfg->fp, "lis 11, %d@h\n", offset); fprintf (acfg->fp, "ori 11, 11, %d@l\n", offset); fprintf (acfg->fp, "add 11, 11, 30\n"); fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP); #ifdef PPC_USES_FUNCTION_DESCRIPTOR fprintf (acfg->fp, "%s 2, %d(11)\n", PPC_LD_OP, (int)sizeof (gpointer)); fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP); #endif fprintf (acfg->fp, "mtctr 11\n"); fprintf (acfg->fp, "bctr\n"); emit_int32 (acfg, info_offset); #else g_assert_not_reached (); #endif } /* * arch_emit_llvm_plt_entry: * * Same as arch_emit_plt_entry, but handles calls from LLVM generated code. * This is only needed on arm to handle thumb interop. */ static void arch_emit_llvm_plt_entry (MonoAotCompile *acfg, const char *got_symbol, int offset, int info_offset) { #if defined(TARGET_ARM) /* LLVM calls the PLT entries using bl, so these have to be thumb2 */ /* The caller already transitioned to thumb */ /* The code below should be 12 bytes long */ /* clang has trouble encoding these instructions, so emit the binary */ #if 0 fprintf (acfg->fp, "ldr ip, [pc, #8]\n"); /* thumb can't encode ld pc, [pc, ip] */ fprintf (acfg->fp, "add ip, pc, ip\n"); fprintf (acfg->fp, "ldr ip, [ip, #0]\n"); fprintf (acfg->fp, "bx ip\n"); #endif emit_set_thumb_mode (acfg); fprintf (acfg->fp, ".4byte 0xc008f8df\n"); fprintf (acfg->fp, ".2byte 0x44fc\n"); fprintf (acfg->fp, ".4byte 0xc000f8dc\n"); fprintf (acfg->fp, ".2byte 0x4760\n"); emit_symbol_diff (acfg, got_symbol, ".", offset + 4); emit_int32 (acfg, info_offset); emit_unset_mode (acfg); emit_set_arm_mode (acfg); #else g_assert_not_reached (); #endif } /* Save unwind_info in the module and emit the offset to the information at symbol */ static void save_unwind_info (MonoAotCompile *acfg, char *symbol, GSList *unwind_ops) { guint32 uw_offset, encoded_len; guint8 *encoded; emit_section_change (acfg, RODATA_SECT, 0); emit_global (acfg, symbol, FALSE); emit_label (acfg, symbol); encoded = mono_unwind_ops_encode (unwind_ops, &encoded_len); uw_offset = get_unwind_info_offset (acfg, encoded, encoded_len); g_free (encoded); emit_int32 (acfg, uw_offset); } /* * arch_emit_specific_trampoline_pages: * * Emits a page full of trampolines: each trampoline uses its own address to * lookup both the generic trampoline code and the data argument. * This page can be remapped in process multiple times so we can get an * unlimited number of trampolines. * Specifically this implementation uses the following trick: two memory pages * are allocated, with the first containing the data and the second containing the trampolines. * To reduce trampoline size, each trampoline jumps at the start of the page where a common * implementation does all the lifting. * Note that the ARM single trampoline size is 8 bytes, exactly like the data that needs to be stored * on the arm 32 bit system. */ static void arch_emit_specific_trampoline_pages (MonoAotCompile *acfg) { #if defined(TARGET_ARM) guint8 buf [128]; guint8 *code; guint8 *loop_start, *loop_branch_back, *loop_end_check, *imt_found_check; int i; int pagesize = MONO_AOT_TRAMP_PAGE_SIZE; GSList *unwind_ops = NULL; #define COMMON_TRAMP_SIZE 16 int count = (pagesize - COMMON_TRAMP_SIZE) / 8; int imm8, rot_amount; char symbol [128]; if (!acfg->aot_opts.use_trampolines_page) return; acfg->tramp_page_size = pagesize; sprintf (symbol, "%sspecific_trampolines_page", acfg->user_symbol_prefix); emit_alignment (acfg, pagesize); emit_global (acfg, symbol, TRUE); emit_label (acfg, symbol); /* emit the generic code first, the trampoline address + 8 is in the lr register */ code = buf; imm8 = mono_arm_is_rotated_imm8 (pagesize, &rot_amount); ARM_SUB_REG_IMM (code, ARMREG_LR, ARMREG_LR, imm8, rot_amount); ARM_LDR_IMM (code, ARMREG_R1, ARMREG_LR, -8); ARM_LDR_IMM (code, ARMREG_PC, ARMREG_LR, -4); ARM_NOP (code); g_assert (code - buf == COMMON_TRAMP_SIZE); /* Emit it */ emit_bytes (acfg, buf, code - buf); for (i = 0; i < count; ++i) { code = buf; ARM_PUSH (code, 0x5fff); ARM_BL (code, 0); arm_patch (code - 4, code - COMMON_TRAMP_SIZE - 8 * (i + 1)); g_assert (code - buf == 8); emit_bytes (acfg, buf, code - buf); } /* now the rgctx trampolines: each specific trampolines puts in the ip register * the instruction pointer address, so the generic trampoline at the start of the page * subtracts 4096 to get to the data page and loads the values * We again fit the generic trampiline in 16 bytes. */ sprintf (symbol, "%srgctx_trampolines_page", acfg->user_symbol_prefix); emit_global (acfg, symbol, TRUE); emit_label (acfg, symbol); code = buf; imm8 = mono_arm_is_rotated_imm8 (pagesize, &rot_amount); ARM_SUB_REG_IMM (code, ARMREG_IP, ARMREG_IP, imm8, rot_amount); ARM_LDR_IMM (code, MONO_ARCH_RGCTX_REG, ARMREG_IP, -8); ARM_LDR_IMM (code, ARMREG_PC, ARMREG_IP, -4); ARM_NOP (code); g_assert (code - buf == COMMON_TRAMP_SIZE); /* Emit it */ emit_bytes (acfg, buf, code - buf); for (i = 0; i < count; ++i) { code = buf; ARM_MOV_REG_REG (code, ARMREG_IP, ARMREG_PC); ARM_B (code, 0); arm_patch (code - 4, code - COMMON_TRAMP_SIZE - 8 * (i + 1)); g_assert (code - buf == 8); emit_bytes (acfg, buf, code - buf); } /* * gsharedvt arg trampolines: see arch_emit_gsharedvt_arg_trampoline () */ sprintf (symbol, "%sgsharedvt_arg_trampolines_page", acfg->user_symbol_prefix); emit_global (acfg, symbol, TRUE); emit_label (acfg, symbol); code = buf; ARM_PUSH (code, (1 << ARMREG_R0) | (1 << ARMREG_R1) | (1 << ARMREG_R2) | (1 << ARMREG_R3)); imm8 = mono_arm_is_rotated_imm8 (pagesize, &rot_amount); ARM_SUB_REG_IMM (code, ARMREG_IP, ARMREG_IP, imm8, rot_amount); ARM_LDR_IMM (code, ARMREG_R0, ARMREG_IP, -8); ARM_LDR_IMM (code, ARMREG_PC, ARMREG_IP, -4); g_assert (code - buf == COMMON_TRAMP_SIZE); /* Emit it */ emit_bytes (acfg, buf, code - buf); for (i = 0; i < count; ++i) { code = buf; ARM_MOV_REG_REG (code, ARMREG_IP, ARMREG_PC); ARM_B (code, 0); arm_patch (code - 4, code - COMMON_TRAMP_SIZE - 8 * (i + 1)); g_assert (code - buf == 8); emit_bytes (acfg, buf, code - buf); } /* now the imt trampolines: each specific trampolines puts in the ip register * the instruction pointer address, so the generic trampoline at the start of the page * subtracts 4096 to get to the data page and loads the values */ #define IMT_TRAMP_SIZE 72 sprintf (symbol, "%simt_trampolines_page", acfg->user_symbol_prefix); emit_global (acfg, symbol, TRUE); emit_label (acfg, symbol); code = buf; /* Need at least two free registers, plus a slot for storing the pc */ ARM_PUSH (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_R2)); imm8 = mono_arm_is_rotated_imm8 (pagesize, &rot_amount); ARM_SUB_REG_IMM (code, ARMREG_IP, ARMREG_IP, imm8, rot_amount); ARM_LDR_IMM (code, ARMREG_R0, ARMREG_IP, -8); /* The IMT method is in v5, r0 has the imt array address */ loop_start = code; ARM_LDR_IMM (code, ARMREG_R1, ARMREG_R0, 0); ARM_CMP_REG_REG (code, ARMREG_R1, ARMREG_V5); imt_found_check = code; ARM_B_COND (code, ARMCOND_EQ, 0); /* End-of-loop check */ ARM_CMP_REG_IMM (code, ARMREG_R1, 0, 0); loop_end_check = code; ARM_B_COND (code, ARMCOND_EQ, 0); /* Loop footer */ ARM_ADD_REG_IMM8 (code, ARMREG_R0, ARMREG_R0, sizeof (gpointer) * 2); loop_branch_back = code; ARM_B (code, 0); arm_patch (loop_branch_back, loop_start); /* Match */ arm_patch (imt_found_check, code); ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4); ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 0); /* Save it to the third stack slot */ ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8); /* Restore the registers and branch */ ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC)); /* No match */ arm_patch (loop_end_check, code); ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4); ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8); ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC)); ARM_NOP (code); /* Emit it */ g_assert (code - buf == IMT_TRAMP_SIZE); emit_bytes (acfg, buf, code - buf); for (i = 0; i < count; ++i) { code = buf; ARM_MOV_REG_REG (code, ARMREG_IP, ARMREG_PC); ARM_B (code, 0); arm_patch (code - 4, code - IMT_TRAMP_SIZE - 8 * (i + 1)); g_assert (code - buf == 8); emit_bytes (acfg, buf, code - buf); } acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_SPECIFIC] = 16; acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_STATIC_RGCTX] = 16; acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_IMT] = 72; acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_GSHAREDVT_ARG] = 16; /* Unwind info for specifc trampolines */ sprintf (symbol, "%sspecific_trampolines_page_gen_p", acfg->user_symbol_prefix); /* We unwind to the original caller, from the stack, since lr is clobbered */ mono_add_unwind_op_def_cfa (unwind_ops, 0, 0, ARMREG_SP, 14 * sizeof (mgreg_t)); mono_add_unwind_op_offset (unwind_ops, 0, 0, ARMREG_LR, -4); save_unwind_info (acfg, symbol, unwind_ops); mono_free_unwind_info (unwind_ops); sprintf (symbol, "%sspecific_trampolines_page_sp_p", acfg->user_symbol_prefix); mono_add_unwind_op_def_cfa (unwind_ops, 0, 0, ARMREG_SP, 0); mono_add_unwind_op_def_cfa_offset (unwind_ops, 4, 0, 14 * sizeof (mgreg_t)); save_unwind_info (acfg, symbol, unwind_ops); mono_free_unwind_info (unwind_ops); /* Unwind info for rgctx trampolines */ sprintf (symbol, "%srgctx_trampolines_page_gen_p", acfg->user_symbol_prefix); mono_add_unwind_op_def_cfa (unwind_ops, 0, 0, ARMREG_SP, 0); save_unwind_info (acfg, symbol, unwind_ops); sprintf (symbol, "%srgctx_trampolines_page_sp_p", acfg->user_symbol_prefix); save_unwind_info (acfg, symbol, unwind_ops); mono_free_unwind_info (unwind_ops); /* Unwind info for gsharedvt trampolines */ sprintf (symbol, "%sgsharedvt_trampolines_page_gen_p", acfg->user_symbol_prefix); mono_add_unwind_op_def_cfa (unwind_ops, 0, 0, ARMREG_SP, 0); mono_add_unwind_op_def_cfa_offset (unwind_ops, 4, 0, 4 * sizeof (mgreg_t)); save_unwind_info (acfg, symbol, unwind_ops); mono_free_unwind_info (unwind_ops); sprintf (symbol, "%sgsharedvt_trampolines_page_sp_p", acfg->user_symbol_prefix); mono_add_unwind_op_def_cfa (unwind_ops, 0, 0, ARMREG_SP, 0); save_unwind_info (acfg, symbol, unwind_ops); mono_free_unwind_info (unwind_ops); /* Unwind info for imt trampolines */ sprintf (symbol, "%simt_trampolines_page_gen_p", acfg->user_symbol_prefix); mono_add_unwind_op_def_cfa (unwind_ops, 0, 0, ARMREG_SP, 0); mono_add_unwind_op_def_cfa_offset (unwind_ops, 4, 0, 3 * sizeof (mgreg_t)); save_unwind_info (acfg, symbol, unwind_ops); mono_free_unwind_info (unwind_ops); sprintf (symbol, "%simt_trampolines_page_sp_p", acfg->user_symbol_prefix); mono_add_unwind_op_def_cfa (unwind_ops, 0, 0, ARMREG_SP, 0); save_unwind_info (acfg, symbol, unwind_ops); mono_free_unwind_info (unwind_ops); #elif defined(TARGET_ARM64) arm64_emit_specific_trampoline_pages (acfg); #endif } /* * arch_emit_specific_trampoline: * * Emit code for a specific trampoline. OFFSET is the offset of the first of * two GOT slots which contain the generic trampoline address and the trampoline * argument. TRAMP_SIZE is set to the size of the emitted trampoline. */ static void arch_emit_specific_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size) { /* * The trampolines created here are variations of the specific * trampolines created in mono_arch_create_specific_trampoline (). The * differences are: * - the generic trampoline address is taken from a got slot. * - the offset of the got slot where the trampoline argument is stored * is embedded in the instruction stream, and the generic trampoline * can load the argument by loading the offset, adding it to the * address of the trampoline to get the address of the got slot, and * loading the argument from there. * - all the trampolines should be of the same length. */ #if defined(TARGET_AMD64) /* This should be exactly 8 bytes long */ *tramp_size = 8; /* call *(%rip) */ if (acfg->llvm) { emit_unset_mode (acfg); fprintf (acfg->fp, "call *%s+%d(%%rip)\n", acfg->got_symbol, (int)(offset * sizeof (gpointer))); emit_zero_bytes (acfg, 2); } else { emit_byte (acfg, '\x41'); emit_byte (acfg, '\xff'); emit_byte (acfg, '\x15'); emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4); emit_zero_bytes (acfg, 1); } #elif defined(TARGET_ARM) guint8 buf [128]; guint8 *code; /* This should be exactly 20 bytes long */ *tramp_size = 20; code = buf; ARM_PUSH (code, 0x5fff); ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 4); /* Load the value from the GOT */ ARM_LDR_REG_REG (code, ARMREG_R1, ARMREG_PC, ARMREG_R1); /* Branch to it */ ARM_BLX_REG (code, ARMREG_R1); g_assert (code - buf == 16); /* Emit it */ emit_bytes (acfg, buf, code - buf); /* * Only one offset is needed, since the second one would be equal to the * first one. */ emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 4); //emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4 + 8); #elif defined(TARGET_ARM64) arm64_emit_specific_trampoline (acfg, offset, tramp_size); #elif defined(TARGET_POWERPC) guint8 buf [128]; guint8 *code; *tramp_size = 4; code = buf; /* * PPC has no ip relative addressing, so we need to compute the address * of the mscorlib got. That is slow and complex, so instead, we store it * in the second got slot of every aot image. The caller already computed * the address of its got and placed it into r30. */ emit_unset_mode (acfg); /* Load mscorlib got address */ fprintf (acfg->fp, "%s 0, %d(30)\n", PPC_LD_OP, (int)sizeof (gpointer)); /* Load generic trampoline address */ fprintf (acfg->fp, "lis 11, %d@h\n", (int)(offset * sizeof (gpointer))); fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)(offset * sizeof (gpointer))); fprintf (acfg->fp, "%s 11, 11, 0\n", PPC_LDX_OP); #ifdef PPC_USES_FUNCTION_DESCRIPTOR fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP); #endif fprintf (acfg->fp, "mtctr 11\n"); /* Load trampoline argument */ /* On ppc, we pass it normally to the generic trampoline */ fprintf (acfg->fp, "lis 11, %d@h\n", (int)((offset + 1) * sizeof (gpointer))); fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)((offset + 1) * sizeof (gpointer))); fprintf (acfg->fp, "%s 0, 11, 0\n", PPC_LDX_OP); /* Branch to generic trampoline */ fprintf (acfg->fp, "bctr\n"); #ifdef PPC_USES_FUNCTION_DESCRIPTOR *tramp_size = 10 * 4; #else *tramp_size = 9 * 4; #endif #elif defined(TARGET_X86) guint8 buf [128]; guint8 *code; /* Similar to the PPC code above */ /* FIXME: Could this clobber the register needed by get_vcall_slot () ? */ code = buf; /* Load mscorlib got address */ x86_mov_reg_membase (code, X86_ECX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4); /* Push trampoline argument */ x86_push_membase (code, X86_ECX, (offset + 1) * sizeof (gpointer)); /* Load generic trampoline address */ x86_mov_reg_membase (code, X86_ECX, X86_ECX, offset * sizeof (gpointer), 4); /* Branch to generic trampoline */ x86_jump_reg (code, X86_ECX); emit_bytes (acfg, buf, code - buf); *tramp_size = 17; g_assert (code - buf == *tramp_size); #else g_assert_not_reached (); #endif } /* * arch_emit_unbox_trampoline: * * Emit code for the unbox trampoline for METHOD used in the full-aot case. * CALL_TARGET is the symbol pointing to the native code of METHOD. */ static void arch_emit_unbox_trampoline (MonoAotCompile *acfg, MonoCompile *cfg, MonoMethod *method, const char *call_target) { #if defined(TARGET_AMD64) guint8 buf [32]; guint8 *code; int this_reg; this_reg = mono_arch_get_this_arg_reg (NULL); code = buf; amd64_alu_reg_imm (code, X86_ADD, this_reg, sizeof (MonoObject)); emit_bytes (acfg, buf, code - buf); /* jump */ if (acfg->llvm) { emit_unset_mode (acfg); fprintf (acfg->fp, "jmp %s\n", call_target); } else { emit_byte (acfg, '\xe9'); emit_symbol_diff (acfg, call_target, ".", -4); } #elif defined(TARGET_X86) guint8 buf [32]; guint8 *code; int this_pos = 4; code = buf; x86_alu_membase_imm (code, X86_ADD, X86_ESP, this_pos, sizeof (MonoObject)); emit_bytes (acfg, buf, code - buf); /* jump */ emit_byte (acfg, '\xe9'); emit_symbol_diff (acfg, call_target, ".", -4); #elif defined(TARGET_ARM) guint8 buf [128]; guint8 *code; if (acfg->thumb_mixed && cfg->compile_llvm) { fprintf (acfg->fp, "add r0, r0, #%d\n", (int)sizeof (MonoObject)); fprintf (acfg->fp, "b %s\n", call_target); fprintf (acfg->fp, ".arm\n"); fprintf (acfg->fp, ".align 2\n"); return; } code = buf; ARM_ADD_REG_IMM8 (code, ARMREG_R0, ARMREG_R0, sizeof (MonoObject)); emit_bytes (acfg, buf, code - buf); /* jump to method */ if (acfg->thumb_mixed && cfg->compile_llvm) fprintf (acfg->fp, "\n\tbx %s\n", call_target); else fprintf (acfg->fp, "\n\tb %s\n", call_target); #elif defined(TARGET_ARM64) arm64_emit_unbox_trampoline (acfg, cfg, method, call_target); #elif defined(TARGET_POWERPC) int this_pos = 3; fprintf (acfg->fp, "\n\taddi %d, %d, %d\n", this_pos, this_pos, (int)sizeof (MonoObject)); fprintf (acfg->fp, "\n\tb %s\n", call_target); #else g_assert_not_reached (); #endif } /* * arch_emit_static_rgctx_trampoline: * * Emit code for a static rgctx trampoline. OFFSET is the offset of the first of * two GOT slots which contain the rgctx argument, and the method to jump to. * TRAMP_SIZE is set to the size of the emitted trampoline. * These kinds of trampolines cannot be enumerated statically, since there could * be one trampoline per method instantiation, so we emit the same code for all * trampolines, and parameterize them using two GOT slots. */ static void arch_emit_static_rgctx_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size) { #if defined(TARGET_AMD64) /* This should be exactly 13 bytes long */ *tramp_size = 13; if (acfg->llvm) { emit_unset_mode (acfg); fprintf (acfg->fp, "mov %s+%d(%%rip), %%r10\n", acfg->got_symbol, (int)(offset * sizeof (gpointer))); fprintf (acfg->fp, "jmp *%s+%d(%%rip)\n", acfg->got_symbol, (int)((offset + 1) * sizeof (gpointer))); } else { /* mov (%rip), %r10 */ emit_byte (acfg, '\x4d'); emit_byte (acfg, '\x8b'); emit_byte (acfg, '\x15'); emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4); /* jmp *(%rip) */ emit_byte (acfg, '\xff'); emit_byte (acfg, '\x25'); emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4); } #elif defined(TARGET_ARM) guint8 buf [128]; guint8 *code; /* This should be exactly 24 bytes long */ *tramp_size = 24; code = buf; /* Load rgctx value */ ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 8); ARM_LDR_REG_REG (code, MONO_ARCH_RGCTX_REG, ARMREG_PC, ARMREG_IP); /* Load branch addr + branch */ ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 4); ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_IP); g_assert (code - buf == 16); /* Emit it */ emit_bytes (acfg, buf, code - buf); emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 8); emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4 + 4); #elif defined(TARGET_ARM64) arm64_emit_static_rgctx_trampoline (acfg, offset, tramp_size); #elif defined(TARGET_POWERPC) guint8 buf [128]; guint8 *code; *tramp_size = 4; code = buf; /* * PPC has no ip relative addressing, so we need to compute the address * of the mscorlib got. That is slow and complex, so instead, we store it * in the second got slot of every aot image. The caller already computed * the address of its got and placed it into r30. */ emit_unset_mode (acfg); /* Load mscorlib got address */ fprintf (acfg->fp, "%s 0, %d(30)\n", PPC_LD_OP, (int)sizeof (gpointer)); /* Load rgctx */ fprintf (acfg->fp, "lis 11, %d@h\n", (int)(offset * sizeof (gpointer))); fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)(offset * sizeof (gpointer))); fprintf (acfg->fp, "%s %d, 11, 0\n", PPC_LDX_OP, MONO_ARCH_RGCTX_REG); /* Load target address */ fprintf (acfg->fp, "lis 11, %d@h\n", (int)((offset + 1) * sizeof (gpointer))); fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)((offset + 1) * sizeof (gpointer))); fprintf (acfg->fp, "%s 11, 11, 0\n", PPC_LDX_OP); #ifdef PPC_USES_FUNCTION_DESCRIPTOR fprintf (acfg->fp, "%s 2, %d(11)\n", PPC_LD_OP, (int)sizeof (gpointer)); fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP); #endif fprintf (acfg->fp, "mtctr 11\n"); /* Branch to the target address */ fprintf (acfg->fp, "bctr\n"); #ifdef PPC_USES_FUNCTION_DESCRIPTOR *tramp_size = 11 * 4; #else *tramp_size = 9 * 4; #endif #elif defined(TARGET_X86) guint8 buf [128]; guint8 *code; /* Similar to the PPC code above */ g_assert (MONO_ARCH_RGCTX_REG != X86_ECX); code = buf; /* Load mscorlib got address */ x86_mov_reg_membase (code, X86_ECX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4); /* Load arg */ x86_mov_reg_membase (code, MONO_ARCH_RGCTX_REG, X86_ECX, offset * sizeof (gpointer), 4); /* Branch to the target address */ x86_jump_membase (code, X86_ECX, (offset + 1) * sizeof (gpointer)); emit_bytes (acfg, buf, code - buf); *tramp_size = 15; g_assert (code - buf == *tramp_size); #else g_assert_not_reached (); #endif } /* * arch_emit_imt_trampoline: * * Emit an IMT trampoline usable in full-aot mode. The trampoline uses 1 got slot which * points to an array of pointer pairs. The pairs of the form [key, ptr], where * key is the IMT key, and ptr holds the address of a memory location holding * the address to branch to if the IMT arg matches the key. The array is * terminated by a pair whose key is NULL, and whose ptr is the address of the * fail_tramp. * TRAMP_SIZE is set to the size of the emitted trampoline. */ static void arch_emit_imt_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size) { #if defined(TARGET_AMD64) guint8 *buf, *code; guint8 *labels [16]; guint8 mov_buf[3]; guint8 *mov_buf_ptr = mov_buf; const int kSizeOfMove = 7; code = buf = (guint8 *)g_malloc (256); /* FIXME: Optimize this, i.e. use binary search etc. */ /* Maybe move the body into a separate function (slower, but much smaller) */ /* MONO_ARCH_IMT_SCRATCH_REG is a free register */ if (acfg->llvm) { emit_unset_mode (acfg); fprintf (acfg->fp, "mov %s+%d(%%rip), %s\n", acfg->got_symbol, (int)(offset * sizeof (gpointer)), mono_arch_regname (MONO_ARCH_IMT_SCRATCH_REG)); } labels [0] = code; amd64_alu_membase_imm (code, X86_CMP, MONO_ARCH_IMT_SCRATCH_REG, 0, 0); labels [1] = code; amd64_branch8 (code, X86_CC_Z, 0, FALSE); /* Check key */ amd64_alu_membase_reg_size (code, X86_CMP, MONO_ARCH_IMT_SCRATCH_REG, 0, MONO_ARCH_IMT_REG, sizeof (gpointer)); labels [2] = code; amd64_branch8 (code, X86_CC_Z, 0, FALSE); /* Loop footer */ amd64_alu_reg_imm (code, X86_ADD, MONO_ARCH_IMT_SCRATCH_REG, 2 * sizeof (gpointer)); amd64_jump_code (code, labels [0]); /* Match */ mono_amd64_patch (labels [2], code); amd64_mov_reg_membase (code, MONO_ARCH_IMT_SCRATCH_REG, MONO_ARCH_IMT_SCRATCH_REG, sizeof (gpointer), sizeof (gpointer)); amd64_jump_membase (code, MONO_ARCH_IMT_SCRATCH_REG, 0); /* No match */ mono_amd64_patch (labels [1], code); /* Load fail tramp */ amd64_alu_reg_imm (code, X86_ADD, MONO_ARCH_IMT_SCRATCH_REG, sizeof (gpointer)); /* Check if there is a fail tramp */ amd64_alu_membase_imm (code, X86_CMP, MONO_ARCH_IMT_SCRATCH_REG, 0, 0); labels [3] = code; amd64_branch8 (code, X86_CC_Z, 0, FALSE); /* Jump to fail tramp */ amd64_jump_membase (code, MONO_ARCH_IMT_SCRATCH_REG, 0); /* Fail */ mono_amd64_patch (labels [3], code); x86_breakpoint (code); if (!acfg->llvm) { /* mov (%rip), MONO_ARCH_IMT_SCRATCH_REG */ amd64_emit_rex (mov_buf_ptr, sizeof(gpointer), MONO_ARCH_IMT_SCRATCH_REG, 0, AMD64_RIP); *(mov_buf_ptr)++ = (unsigned char)0x8b; /* mov opcode */ x86_address_byte (mov_buf_ptr, 0, MONO_ARCH_IMT_SCRATCH_REG & 0x7, 5); emit_bytes (acfg, mov_buf, mov_buf_ptr - mov_buf); emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4); } emit_bytes (acfg, buf, code - buf); *tramp_size = code - buf + kSizeOfMove; g_free (buf); #elif defined(TARGET_X86) guint8 *buf, *code; guint8 *labels [16]; code = buf = g_malloc (256); /* Allocate a temporary stack slot */ x86_push_reg (code, X86_EAX); /* Save EAX */ x86_push_reg (code, X86_EAX); /* Load mscorlib got address */ x86_mov_reg_membase (code, X86_EAX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4); /* Load arg */ x86_mov_reg_membase (code, X86_EAX, X86_EAX, offset * sizeof (gpointer), 4); labels [0] = code; x86_alu_membase_imm (code, X86_CMP, X86_EAX, 0, 0); labels [1] = code; x86_branch8 (code, X86_CC_Z, FALSE, 0); /* Check key */ x86_alu_membase_reg (code, X86_CMP, X86_EAX, 0, MONO_ARCH_IMT_REG); labels [2] = code; x86_branch8 (code, X86_CC_Z, FALSE, 0); /* Loop footer */ x86_alu_reg_imm (code, X86_ADD, X86_EAX, 2 * sizeof (gpointer)); x86_jump_code (code, labels [0]); /* Match */ mono_x86_patch (labels [2], code); x86_mov_reg_membase (code, X86_EAX, X86_EAX, sizeof (gpointer), 4); x86_mov_reg_membase (code, X86_EAX, X86_EAX, 0, 4); /* Save the target address to the temporary stack location */ x86_mov_membase_reg (code, X86_ESP, 4, X86_EAX, 4); /* Restore EAX */ x86_pop_reg (code, X86_EAX); /* Jump to the target address */ x86_ret (code); /* No match */ mono_x86_patch (labels [1], code); /* Load fail tramp */ x86_mov_reg_membase (code, X86_EAX, X86_EAX, sizeof (gpointer), 4); x86_alu_membase_imm (code, X86_CMP, X86_EAX, 0, 0); labels [3] = code; x86_branch8 (code, X86_CC_Z, FALSE, 0); /* Jump to fail tramp */ x86_mov_membase_reg (code, X86_ESP, 4, X86_EAX, 4); x86_pop_reg (code, X86_EAX); x86_ret (code); /* Fail */ mono_x86_patch (labels [3], code); x86_breakpoint (code); emit_bytes (acfg, buf, code - buf); *tramp_size = code - buf; g_free (buf); #elif defined(TARGET_ARM) guint8 buf [128]; guint8 *code, *code2, *labels [16]; code = buf; /* The IMT method is in v5 */ /* Need at least two free registers, plus a slot for storing the pc */ ARM_PUSH (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_R2)); labels [0] = code; /* Load the parameter from the GOT */ ARM_LDR_IMM (code, ARMREG_R0, ARMREG_PC, 0); ARM_LDR_REG_REG (code, ARMREG_R0, ARMREG_PC, ARMREG_R0); labels [1] = code; ARM_LDR_IMM (code, ARMREG_R1, ARMREG_R0, 0); ARM_CMP_REG_REG (code, ARMREG_R1, ARMREG_V5); labels [2] = code; ARM_B_COND (code, ARMCOND_EQ, 0); /* End-of-loop check */ ARM_CMP_REG_IMM (code, ARMREG_R1, 0, 0); labels [3] = code; ARM_B_COND (code, ARMCOND_EQ, 0); /* Loop footer */ ARM_ADD_REG_IMM8 (code, ARMREG_R0, ARMREG_R0, sizeof (gpointer) * 2); labels [4] = code; ARM_B (code, 0); arm_patch (labels [4], labels [1]); /* Match */ arm_patch (labels [2], code); ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4); ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 0); /* Save it to the third stack slot */ ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8); /* Restore the registers and branch */ ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC)); /* No match */ arm_patch (labels [3], code); ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4); ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8); ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC)); /* Fixup offset */ code2 = labels [0]; ARM_LDR_IMM (code2, ARMREG_R0, ARMREG_PC, (code - (labels [0] + 8))); emit_bytes (acfg, buf, code - buf); emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) + (code - (labels [0] + 8)) - 4); *tramp_size = code - buf + 4; #elif defined(TARGET_ARM64) arm64_emit_imt_trampoline (acfg, offset, tramp_size); #elif defined(TARGET_POWERPC) guint8 buf [128]; guint8 *code, *labels [16]; code = buf; /* Load the mscorlib got address */ ppc_ldptr (code, ppc_r12, sizeof (gpointer), ppc_r30); /* Load the parameter from the GOT */ ppc_load (code, ppc_r0, offset * sizeof (gpointer)); ppc_ldptr_indexed (code, ppc_r12, ppc_r12, ppc_r0); /* Load and check key */ labels [1] = code; ppc_ldptr (code, ppc_r0, 0, ppc_r12); ppc_cmp (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, MONO_ARCH_IMT_REG); labels [2] = code; ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0); /* End-of-loop check */ ppc_cmpi (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, 0); labels [3] = code; ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0); /* Loop footer */ ppc_addi (code, ppc_r12, ppc_r12, 2 * sizeof (gpointer)); labels [4] = code; ppc_b (code, 0); mono_ppc_patch (labels [4], labels [1]); /* Match */ mono_ppc_patch (labels [2], code); ppc_ldptr (code, ppc_r12, sizeof (gpointer), ppc_r12); /* r12 now contains the value of the vtable slot */ /* this is not a function descriptor on ppc64 */ ppc_ldptr (code, ppc_r12, 0, ppc_r12); ppc_mtctr (code, ppc_r12); ppc_bcctr (code, PPC_BR_ALWAYS, 0); /* Fail */ mono_ppc_patch (labels [3], code); /* FIXME: */ ppc_break (code); *tramp_size = code - buf; emit_bytes (acfg, buf, code - buf); #else g_assert_not_reached (); #endif } #if defined (TARGET_AMD64) static void amd64_emit_load_got_slot (MonoAotCompile *acfg, int dreg, int got_slot) { g_assert (acfg->fp); emit_unset_mode (acfg); fprintf (acfg->fp, "mov %s+%d(%%rip), %s\n", acfg->got_symbol, (unsigned int) ((got_slot * sizeof (gpointer))), mono_arch_regname (dreg)); } #endif /* * arch_emit_gsharedvt_arg_trampoline: * * Emit code for a gsharedvt arg trampoline. OFFSET is the offset of the first of * two GOT slots which contain the argument, and the code to jump to. * TRAMP_SIZE is set to the size of the emitted trampoline. * These kinds of trampolines cannot be enumerated statically, since there could * be one trampoline per method instantiation, so we emit the same code for all * trampolines, and parameterize them using two GOT slots. */ static void arch_emit_gsharedvt_arg_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size) { #if defined(TARGET_X86) guint8 buf [128]; guint8 *code; /* Similar to the PPC code above */ g_assert (MONO_ARCH_RGCTX_REG != X86_ECX); code = buf; /* Load mscorlib got address */ x86_mov_reg_membase (code, X86_ECX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4); /* Load arg */ x86_mov_reg_membase (code, X86_EAX, X86_ECX, offset * sizeof (gpointer), 4); /* Branch to the target address */ x86_jump_membase (code, X86_ECX, (offset + 1) * sizeof (gpointer)); emit_bytes (acfg, buf, code - buf); *tramp_size = 15; g_assert (code - buf == *tramp_size); #elif defined(TARGET_ARM) guint8 buf [128]; guint8 *code; /* The same as mono_arch_get_gsharedvt_arg_trampoline (), but for AOT */ /* Similar to arch_emit_specific_trampoline () */ *tramp_size = 24; code = buf; ARM_PUSH (code, (1 << ARMREG_R0) | (1 << ARMREG_R1) | (1 << ARMREG_R2) | (1 << ARMREG_R3)); ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 8); /* Load the arg value from the GOT */ ARM_LDR_REG_REG (code, ARMREG_R0, ARMREG_PC, ARMREG_R1); /* Load the addr from the GOT */ ARM_LDR_REG_REG (code, ARMREG_R1, ARMREG_PC, ARMREG_R1); /* Branch to it */ ARM_BX (code, ARMREG_R1); g_assert (code - buf == 20); /* Emit it */ emit_bytes (acfg, buf, code - buf); emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) + 4); #elif defined(TARGET_ARM64) arm64_emit_gsharedvt_arg_trampoline (acfg, offset, tramp_size); #elif defined (TARGET_AMD64) amd64_emit_load_got_slot (acfg, AMD64_RAX, offset); amd64_emit_load_got_slot (acfg, MONO_ARCH_IMT_SCRATCH_REG, offset + 1); g_assert (AMD64_R11 == MONO_ARCH_IMT_SCRATCH_REG); fprintf (acfg->fp, "jmp *%%r11\n"); *tramp_size = 0x11; #else g_assert_not_reached (); #endif } /* END OF ARCH SPECIFIC CODE */ static guint32 mono_get_field_token (MonoClassField *field) { MonoClass *klass = field->parent; int i; int fcount = mono_class_get_field_count (klass); for (i = 0; i < fcount; ++i) { if (field == &klass->fields [i]) return MONO_TOKEN_FIELD_DEF | (mono_class_get_first_field_idx (klass) + 1 + i); } g_assert_not_reached (); return 0; } static inline void encode_value (gint32 value, guint8 *buf, guint8 **endbuf) { guint8 *p = buf; //printf ("ENCODE: %d 0x%x.\n", value, value); /* * Same encoding as the one used in the metadata, extended to handle values * greater than 0x1fffffff. */ if ((value >= 0) && (value <= 127)) *p++ = value; else if ((value >= 0) && (value <= 16383)) { p [0] = 0x80 | (value >> 8); p [1] = value & 0xff; p += 2; } else if ((value >= 0) && (value <= 0x1fffffff)) { p [0] = (value >> 24) | 0xc0; p [1] = (value >> 16) & 0xff; p [2] = (value >> 8) & 0xff; p [3] = value & 0xff; p += 4; } else { p [0] = 0xff; p [1] = (value >> 24) & 0xff; p [2] = (value >> 16) & 0xff; p [3] = (value >> 8) & 0xff; p [4] = value & 0xff; p += 5; } if (endbuf) *endbuf = p; } static void stream_init (MonoDynamicStream *sh) { sh->index = 0; sh->alloc_size = 4096; sh->data = (char *)g_malloc (4096); /* So offsets are > 0 */ sh->data [0] = 0; sh->index ++; } static void make_room_in_stream (MonoDynamicStream *stream, int size) { if (size <= stream->alloc_size) return; while (stream->alloc_size <= size) { if (stream->alloc_size < 4096) stream->alloc_size = 4096; else stream->alloc_size *= 2; } stream->data = (char *)g_realloc (stream->data, stream->alloc_size); } static guint32 add_stream_data (MonoDynamicStream *stream, const char *data, guint32 len) { guint32 idx; make_room_in_stream (stream, stream->index + len); memcpy (stream->data + stream->index, data, len); idx = stream->index; stream->index += len; return idx; } /* * add_to_blob: * * Add data to the binary blob inside the aot image. Returns the offset inside the * blob where the data was stored. */ static guint32 add_to_blob (MonoAotCompile *acfg, const guint8 *data, guint32 data_len) { g_assert (!acfg->blob_closed); if (acfg->blob.alloc_size == 0) stream_init (&acfg->blob); return add_stream_data (&acfg->blob, (char*)data, data_len); } static guint32 add_to_blob_aligned (MonoAotCompile *acfg, const guint8 *data, guint32 data_len, guint32 align) { char buf [4] = {0}; guint32 count; if (acfg->blob.alloc_size == 0) stream_init (&acfg->blob); count = acfg->blob.index % align; /* we assume the stream data will be aligned */ if (count) add_stream_data (&acfg->blob, buf, 4 - count); return add_stream_data (&acfg->blob, (char*)data, data_len); } /* Emit a table of data into the aot image */ static void emit_aot_data (MonoAotCompile *acfg, MonoAotFileTable table, const char *symbol, guint8 *data, int size) { if (acfg->data_outfile) { acfg->table_offsets [(int)table] = acfg->datafile_offset; fwrite (data,1, size, acfg->data_outfile); acfg->datafile_offset += size; // align the data to 8 bytes. Put zeros in the file (so that every build results in consistent output). int align = 8 - size % 8; acfg->datafile_offset += align; guint8 align_buf [16]; memset (&align_buf, 0, sizeof (align_buf)); fwrite (align_buf, align, 1, acfg->data_outfile); } else if (acfg->llvm) { mono_llvm_emit_aot_data (symbol, data, size); } else { emit_section_change (acfg, RODATA_SECT, 0); emit_alignment (acfg, 8); emit_label (acfg, symbol); emit_bytes (acfg, data, size); } } /* * emit_offset_table: * * Emit a table of increasing offsets in a compact form using differential encoding. * There is an index entry for each GROUP_SIZE number of entries. The greater the * group size, the more compact the table becomes, but the slower it becomes to compute * a given entry. Returns the size of the table. */ static guint32 emit_offset_table (MonoAotCompile *acfg, const char *symbol, MonoAotFileTable table, int noffsets, int group_size, gint32 *offsets) { gint32 current_offset; int i, buf_size, ngroups, index_entry_size; guint8 *p, *buf; guint8 *data_p, *data_buf; guint32 *index_offsets; ngroups = (noffsets + (group_size - 1)) / group_size; index_offsets = g_new0 (guint32, ngroups); buf_size = noffsets * 4; p = buf = (guint8 *)g_malloc0 (buf_size); current_offset = 0; for (i = 0; i < noffsets; ++i) { //printf ("D: %d -> %d\n", i, offsets [i]); if ((i % group_size) == 0) { index_offsets [i / group_size] = p - buf; /* Emit the full value for these entries */ encode_value (offsets [i], p, &p); } else { /* The offsets are allowed to be non-increasing */ //g_assert (offsets [i] >= current_offset); encode_value (offsets [i] - current_offset, p, &p); } current_offset = offsets [i]; } data_buf = buf; data_p = p; if (ngroups && index_offsets [ngroups - 1] < 65000) index_entry_size = 2; else index_entry_size = 4; buf_size = (data_p - data_buf) + (ngroups * 4) + 16; p = buf = (guint8 *)g_malloc0 (buf_size); /* Emit the header */ encode_int (noffsets, p, &p); encode_int (group_size, p, &p); encode_int (ngroups, p, &p); encode_int (index_entry_size, p, &p); /* Emit the index */ for (i = 0; i < ngroups; ++i) { if (index_entry_size == 2) encode_int16 (index_offsets [i], p, &p); else encode_int (index_offsets [i], p, &p); } /* Emit the data */ memcpy (p, data_buf, data_p - data_buf); p += data_p - data_buf; g_assert (p - buf <= buf_size); emit_aot_data (acfg, table, symbol, buf, p - buf); g_free (buf); g_free (data_buf); return (int)(p - buf); } static guint32 get_image_index (MonoAotCompile *cfg, MonoImage *image) { guint32 index; index = GPOINTER_TO_UINT (g_hash_table_lookup (cfg->image_hash, image)); if (index) return index - 1; else { index = g_hash_table_size (cfg->image_hash); g_hash_table_insert (cfg->image_hash, image, GUINT_TO_POINTER (index + 1)); g_ptr_array_add (cfg->image_table, image); return index; } } static guint32 find_typespec_for_class (MonoAotCompile *acfg, MonoClass *klass) { int i; int len = acfg->image->tables [MONO_TABLE_TYPESPEC].rows; /* FIXME: Search referenced images as well */ if (!acfg->typespec_classes) { acfg->typespec_classes = g_hash_table_new (NULL, NULL); for (i = 0; i < len; i++) { MonoError error; int typespec = MONO_TOKEN_TYPE_SPEC | (i + 1); MonoClass *klass_key = mono_class_get_and_inflate_typespec_checked (acfg->image, typespec, NULL, &error); if (!is_ok (&error)) { mono_error_cleanup (&error); continue; } g_hash_table_insert (acfg->typespec_classes, klass_key, GINT_TO_POINTER (typespec)); } } return GPOINTER_TO_INT (g_hash_table_lookup (acfg->typespec_classes, klass)); } static void encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf); static void encode_klass_ref (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf); static void encode_ginst (MonoAotCompile *acfg, MonoGenericInst *inst, guint8 *buf, guint8 **endbuf); static void encode_type (MonoAotCompile *acfg, MonoType *t, guint8 *buf, guint8 **endbuf); static void encode_klass_ref_inner (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf) { guint8 *p = buf; /* * The encoding begins with one of the MONO_AOT_TYPEREF values, followed by additional * information. */ if (mono_class_is_ginst (klass)) { guint32 token; g_assert (klass->type_token); /* Find a typespec for a class if possible */ token = find_typespec_for_class (acfg, klass); if (token) { encode_value (MONO_AOT_TYPEREF_TYPESPEC_TOKEN, p, &p); encode_value (token, p, &p); } else { MonoClass *gclass = mono_class_get_generic_class (klass)->container_class; MonoGenericInst *inst = mono_class_get_generic_class (klass)->context.class_inst; static int count = 0; guint8 *p1 = p; encode_value (MONO_AOT_TYPEREF_GINST, p, &p); encode_klass_ref (acfg, gclass, p, &p); encode_ginst (acfg, inst, p, &p); count += p - p1; } } else if (klass->type_token) { int iindex = get_image_index (acfg, klass->image); g_assert (mono_metadata_token_code (klass->type_token) == MONO_TOKEN_TYPE_DEF); if (iindex == 0) { encode_value (MONO_AOT_TYPEREF_TYPEDEF_INDEX, p, &p); encode_value (klass->type_token - MONO_TOKEN_TYPE_DEF, p, &p); } else { encode_value (MONO_AOT_TYPEREF_TYPEDEF_INDEX_IMAGE, p, &p); encode_value (klass->type_token - MONO_TOKEN_TYPE_DEF, p, &p); encode_value (get_image_index (acfg, klass->image), p, &p); } } else if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) { MonoGenericContainer *container = mono_type_get_generic_param_owner (&klass->byval_arg); MonoGenericParam *par = klass->byval_arg.data.generic_param; encode_value (MONO_AOT_TYPEREF_VAR, p, &p); encode_value (par->gshared_constraint ? 1 : 0, p, &p); if (par->gshared_constraint) { MonoGSharedGenericParam *gpar = (MonoGSharedGenericParam*)par; encode_type (acfg, par->gshared_constraint, p, &p); encode_klass_ref (acfg, mono_class_from_generic_parameter_internal (gpar->parent), p, &p); } else { encode_value (klass->byval_arg.type, p, &p); encode_value (mono_type_get_generic_param_num (&klass->byval_arg), p, &p); encode_value (container->is_anonymous ? 0 : 1, p, &p); if (!container->is_anonymous) { encode_value (container->is_method, p, &p); if (container->is_method) encode_method_ref (acfg, container->owner.method, p, &p); else encode_klass_ref (acfg, container->owner.klass, p, &p); } } } else if (klass->byval_arg.type == MONO_TYPE_PTR) { encode_value (MONO_AOT_TYPEREF_PTR, p, &p); encode_type (acfg, &klass->byval_arg, p, &p); } else { /* Array class */ g_assert (klass->rank > 0); encode_value (MONO_AOT_TYPEREF_ARRAY, p, &p); encode_value (klass->rank, p, &p); encode_klass_ref (acfg, klass->element_class, p, &p); } *endbuf = p; } /* * encode_klass_ref: * * Encode a reference to KLASS. We use our home-grown encoding instead of the * standard metadata encoding. */ static void encode_klass_ref (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf) { gboolean shared = FALSE; /* * The encoding of generic instances is large so emit them only once. */ if (mono_class_is_ginst (klass)) { guint32 token; g_assert (klass->type_token); /* Find a typespec for a class if possible */ token = find_typespec_for_class (acfg, klass); if (!token) shared = TRUE; } else if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) { shared = TRUE; } if (shared) { guint offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->klass_blob_hash, klass)); guint8 *buf2, *p; if (!offset) { buf2 = (guint8 *)g_malloc (1024); p = buf2; encode_klass_ref_inner (acfg, klass, p, &p); g_assert (p - buf2 < 1024); offset = add_to_blob (acfg, buf2, p - buf2); g_free (buf2); g_hash_table_insert (acfg->klass_blob_hash, klass, GUINT_TO_POINTER (offset + 1)); } else { offset --; } p = buf; encode_value (MONO_AOT_TYPEREF_BLOB_INDEX, p, &p); encode_value (offset, p, &p); *endbuf = p; return; } encode_klass_ref_inner (acfg, klass, buf, endbuf); } static void encode_field_info (MonoAotCompile *cfg, MonoClassField *field, guint8 *buf, guint8 **endbuf) { guint32 token = mono_get_field_token (field); guint8 *p = buf; encode_klass_ref (cfg, field->parent, p, &p); g_assert (mono_metadata_token_code (token) == MONO_TOKEN_FIELD_DEF); encode_value (token - MONO_TOKEN_FIELD_DEF, p, &p); *endbuf = p; } static void encode_ginst (MonoAotCompile *acfg, MonoGenericInst *inst, guint8 *buf, guint8 **endbuf) { guint8 *p = buf; int i; encode_value (inst->type_argc, p, &p); for (i = 0; i < inst->type_argc; ++i) encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p); *endbuf = p; } static void encode_generic_context (MonoAotCompile *acfg, MonoGenericContext *context, guint8 *buf, guint8 **endbuf) { guint8 *p = buf; MonoGenericInst *inst; inst = context->class_inst; if (inst) { g_assert (inst->type_argc); encode_ginst (acfg, inst, p, &p); } else { encode_value (0, p, &p); } inst = context->method_inst; if (inst) { g_assert (inst->type_argc); encode_ginst (acfg, inst, p, &p); } else { encode_value (0, p, &p); } *endbuf = p; } static void encode_type (MonoAotCompile *acfg, MonoType *t, guint8 *buf, guint8 **endbuf) { guint8 *p = buf; g_assert (t->num_mods == 0); /* t->attrs can be ignored */ //g_assert (t->attrs == 0); if (t->pinned) { *p = MONO_TYPE_PINNED; ++p; } if (t->byref) { *p = MONO_TYPE_BYREF; ++p; } *p = t->type; p ++; switch (t->type) { case MONO_TYPE_VOID: case MONO_TYPE_BOOLEAN: case MONO_TYPE_CHAR: case MONO_TYPE_I1: case MONO_TYPE_U1: case MONO_TYPE_I2: case MONO_TYPE_U2: case MONO_TYPE_I4: case MONO_TYPE_U4: case MONO_TYPE_I8: case MONO_TYPE_U8: case MONO_TYPE_R4: case MONO_TYPE_R8: case MONO_TYPE_I: case MONO_TYPE_U: case MONO_TYPE_STRING: case MONO_TYPE_OBJECT: case MONO_TYPE_TYPEDBYREF: break; case MONO_TYPE_VALUETYPE: case MONO_TYPE_CLASS: encode_klass_ref (acfg, mono_class_from_mono_type (t), p, &p); break; case MONO_TYPE_SZARRAY: encode_klass_ref (acfg, t->data.klass, p, &p); break; case MONO_TYPE_PTR: encode_type (acfg, t->data.type, p, &p); break; case MONO_TYPE_GENERICINST: { MonoClass *gclass = t->data.generic_class->container_class; MonoGenericInst *inst = t->data.generic_class->context.class_inst; encode_klass_ref (acfg, gclass, p, &p); encode_ginst (acfg, inst, p, &p); break; } case MONO_TYPE_ARRAY: { MonoArrayType *array = t->data.array; int i; encode_klass_ref (acfg, array->eklass, p, &p); encode_value (array->rank, p, &p); encode_value (array->numsizes, p, &p); for (i = 0; i < array->numsizes; ++i) encode_value (array->sizes [i], p, &p); encode_value (array->numlobounds, p, &p); for (i = 0; i < array->numlobounds; ++i) encode_value (array->lobounds [i], p, &p); break; } case MONO_TYPE_VAR: case MONO_TYPE_MVAR: encode_klass_ref (acfg, mono_class_from_mono_type (t), p, &p); break; default: g_assert_not_reached (); } *endbuf = p; } static void encode_signature (MonoAotCompile *acfg, MonoMethodSignature *sig, guint8 *buf, guint8 **endbuf) { guint8 *p = buf; guint32 flags = 0; int i; /* Similar to the metadata encoding */ if (sig->generic_param_count) flags |= 0x10; if (sig->hasthis) flags |= 0x20; if (sig->explicit_this) flags |= 0x40; flags |= (sig->call_convention & 0x0F); *p = flags; ++p; if (sig->generic_param_count) encode_value (sig->generic_param_count, p, &p); encode_value (sig->param_count, p, &p); encode_type (acfg, sig->ret, p, &p); for (i = 0; i < sig->param_count; ++i) { if (sig->sentinelpos == i) { *p = MONO_TYPE_SENTINEL; ++p; } encode_type (acfg, sig->params [i], p, &p); } *endbuf = p; } #define MAX_IMAGE_INDEX 250 static void encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf) { guint32 image_index = get_image_index (acfg, method->klass->image); guint32 token = method->token; MonoJumpInfoToken *ji; guint8 *p = buf; /* * The encoding for most methods is as follows: * - image index encoded as a leb128 * - token index encoded as a leb128 * Values of image index >= MONO_AOT_METHODREF_MIN are used to mark additional * types of method encodings. */ /* Mark methods which can't use aot trampolines because they need the further * processing in mono_magic_trampoline () which requires a MonoMethod*. */ if ((method->is_generic && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) || (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)) encode_value ((MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE << 24), p, &p); if (method->wrapper_type) { WrapperInfo *info = mono_marshal_get_wrapper_info (method); encode_value ((MONO_AOT_METHODREF_WRAPPER << 24), p, &p); encode_value (method->wrapper_type, p, &p); switch (method->wrapper_type) { case MONO_WRAPPER_REMOTING_INVOKE: case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: case MONO_WRAPPER_XDOMAIN_INVOKE: { MonoMethod *m; m = mono_marshal_method_from_wrapper (method); g_assert (m); encode_method_ref (acfg, m, p, &p); break; } case MONO_WRAPPER_PROXY_ISINST: case MONO_WRAPPER_LDFLD: case MONO_WRAPPER_LDFLDA: case MONO_WRAPPER_STFLD: { g_assert (info); encode_klass_ref (acfg, info->d.proxy.klass, p, &p); break; } case MONO_WRAPPER_ALLOC: { /* The GC name is saved once in MonoAotFileInfo */ g_assert (info->d.alloc.alloc_type != -1); encode_value (info->d.alloc.alloc_type, p, &p); break; } case MONO_WRAPPER_WRITE_BARRIER: { g_assert (info); break; } case MONO_WRAPPER_STELEMREF: { g_assert (info); encode_value (info->subtype, p, &p); if (info->subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF) encode_value (info->d.virtual_stelemref.kind, p, &p); break; } case MONO_WRAPPER_UNKNOWN: { g_assert (info); encode_value (info->subtype, p, &p); if (info->subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE || info->subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR) encode_klass_ref (acfg, method->klass, p, &p); else if (info->subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER) encode_method_ref (acfg, info->d.synchronized_inner.method, p, &p); else if (info->subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) encode_method_ref (acfg, info->d.array_accessor.method, p, &p); else if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG) encode_signature (acfg, info->d.gsharedvt.sig, p, &p); else if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG) encode_signature (acfg, info->d.gsharedvt.sig, p, &p); break; } case MONO_WRAPPER_MANAGED_TO_NATIVE: { g_assert (info); encode_value (info->subtype, p, &p); if (info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) { strcpy ((char*)p, method->name); p += strlen (method->name) + 1; } else if (info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT) { encode_method_ref (acfg, info->d.managed_to_native.method, p, &p); } else { g_assert (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_PINVOKE); encode_method_ref (acfg, info->d.managed_to_native.method, p, &p); } break; } case MONO_WRAPPER_SYNCHRONIZED: { MonoMethod *m; m = mono_marshal_method_from_wrapper (method); g_assert (m); g_assert (m != method); encode_method_ref (acfg, m, p, &p); break; } case MONO_WRAPPER_MANAGED_TO_MANAGED: { g_assert (info); encode_value (info->subtype, p, &p); if (info->subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) { encode_value (info->d.element_addr.rank, p, &p); encode_value (info->d.element_addr.elem_size, p, &p); } else if (info->subtype == WRAPPER_SUBTYPE_STRING_CTOR) { encode_method_ref (acfg, info->d.string_ctor.method, p, &p); } else { g_assert_not_reached (); } break; } case MONO_WRAPPER_CASTCLASS: { g_assert (info); encode_value (info->subtype, p, &p); break; } case MONO_WRAPPER_RUNTIME_INVOKE: { g_assert (info); encode_value (info->subtype, p, &p); if (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL) encode_method_ref (acfg, info->d.runtime_invoke.method, p, &p); else if (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL) encode_signature (acfg, info->d.runtime_invoke.sig, p, &p); break; } case MONO_WRAPPER_DELEGATE_INVOKE: case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE: case MONO_WRAPPER_DELEGATE_END_INVOKE: { if (method->is_inflated) { /* These wrappers are identified by their class */ encode_value (1, p, &p); encode_klass_ref (acfg, method->klass, p, &p); } else { MonoMethodSignature *sig = mono_method_signature (method); WrapperInfo *info = mono_marshal_get_wrapper_info (method); encode_value (0, p, &p); if (method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) encode_value (info ? info->subtype : 0, p, &p); encode_signature (acfg, sig, p, &p); } break; } case MONO_WRAPPER_NATIVE_TO_MANAGED: { g_assert (info); encode_method_ref (acfg, info->d.native_to_managed.method, p, &p); encode_klass_ref (acfg, info->d.native_to_managed.klass, p, &p); break; } default: g_assert_not_reached (); } } else if (mono_method_signature (method)->is_inflated) { /* * This is a generic method, find the original token which referenced it and * encode that. * Obtain the token from information recorded by the JIT. */ ji = (MonoJumpInfoToken *)g_hash_table_lookup (acfg->token_info_hash, method); if (ji) { image_index = get_image_index (acfg, ji->image); g_assert (image_index < MAX_IMAGE_INDEX); token = ji->token; encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p); encode_value (image_index, p, &p); encode_value (token, p, &p); } else { MonoMethod *declaring; MonoGenericContext *context = mono_method_get_context (method); g_assert (method->is_inflated); declaring = ((MonoMethodInflated*)method)->declaring; /* * This might be a non-generic method of a generic instance, which * doesn't have a token since the reference is generated by the JIT * like Nullable:Box/Unbox, or by generic sharing. */ encode_value ((MONO_AOT_METHODREF_GINST << 24), p, &p); /* Encode the klass */ encode_klass_ref (acfg, method->klass, p, &p); /* Encode the method */ image_index = get_image_index (acfg, method->klass->image); g_assert (image_index < MAX_IMAGE_INDEX); g_assert (declaring->token); token = declaring->token; g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD); encode_value (image_index, p, &p); encode_value (token, p, &p); encode_generic_context (acfg, context, p, &p); } } else if (token == 0) { /* This might be a method of a constructed type like int[,].Set */ /* Obtain the token from information recorded by the JIT */ ji = (MonoJumpInfoToken *)g_hash_table_lookup (acfg->token_info_hash, method); if (ji) { image_index = get_image_index (acfg, ji->image); g_assert (image_index < MAX_IMAGE_INDEX); token = ji->token; encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p); encode_value (image_index, p, &p); encode_value (token, p, &p); } else { /* Array methods */ g_assert (method->klass->rank); /* Encode directly */ encode_value ((MONO_AOT_METHODREF_ARRAY << 24), p, &p); encode_klass_ref (acfg, method->klass, p, &p); if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank) encode_value (0, p, &p); else if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank * 2) encode_value (1, p, &p); else if (!strcmp (method->name, "Get")) encode_value (2, p, &p); else if (!strcmp (method->name, "Address")) encode_value (3, p, &p); else if (!strcmp (method->name, "Set")) encode_value (4, p, &p); else g_assert_not_reached (); } } else { g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD); if (image_index >= MONO_AOT_METHODREF_MIN) { encode_value ((MONO_AOT_METHODREF_LARGE_IMAGE_INDEX << 24), p, &p); encode_value (image_index, p, &p); encode_value (mono_metadata_token_index (token), p, &p); } else { encode_value ((image_index << 24) | mono_metadata_token_index (token), p, &p); } } *endbuf = p; } static gint compare_patches (gconstpointer a, gconstpointer b) { int i, j; i = (*(MonoJumpInfo**)a)->ip.i; j = (*(MonoJumpInfo**)b)->ip.i; if (i < j) return -1; else if (i > j) return 1; else return 0; } static G_GNUC_UNUSED char* patch_to_string (MonoJumpInfo *patch_info) { GString *str; str = g_string_new (""); g_string_append_printf (str, "%s(", get_patch_name (patch_info->type)); switch (patch_info->type) { case MONO_PATCH_INFO_VTABLE: mono_type_get_desc (str, &patch_info->data.klass->byval_arg, TRUE); break; default: break; } g_string_append_printf (str, ")"); return g_string_free (str, FALSE); } /* * is_plt_patch: * * Return whenever PATCH_INFO refers to a direct call, and thus requires a * PLT entry. */ static inline gboolean is_plt_patch (MonoJumpInfo *patch_info) { switch (patch_info->type) { case MONO_PATCH_INFO_METHOD: case MONO_PATCH_INFO_INTERNAL_METHOD: case MONO_PATCH_INFO_JIT_ICALL_ADDR: case MONO_PATCH_INFO_ICALL_ADDR_CALL: case MONO_PATCH_INFO_RGCTX_FETCH: return TRUE; default: return FALSE; } } /* * get_plt_symbol: * * Return the symbol identifying the plt entry PLT_OFFSET. */ static char* get_plt_symbol (MonoAotCompile *acfg, int plt_offset, MonoJumpInfo *patch_info) { #ifdef TARGET_MACH /* * The Apple linker reorganizes object files, so it doesn't like branches to local * labels, since those have no relocations. */ return g_strdup_printf ("%sp_%d", acfg->llvm_label_prefix, plt_offset); #else return g_strdup_printf ("%sp_%d", acfg->temp_prefix, plt_offset); #endif } /* * get_plt_entry: * * Return a PLT entry which belongs to the method identified by PATCH_INFO. */ static MonoPltEntry* get_plt_entry (MonoAotCompile *acfg, MonoJumpInfo *patch_info) { MonoPltEntry *res; gboolean synchronized = FALSE; static int synchronized_symbol_idx; if (!is_plt_patch (patch_info)) return NULL; if (!acfg->patch_to_plt_entry [patch_info->type]) acfg->patch_to_plt_entry [patch_info->type] = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal); res = (MonoPltEntry *)g_hash_table_lookup (acfg->patch_to_plt_entry [patch_info->type], patch_info); if (!acfg->llvm && patch_info->type == MONO_PATCH_INFO_METHOD && (patch_info->data.method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)) { /* * Allocate a separate PLT slot for each such patch, since some plt * entries will refer to the method itself, and some will refer to the * wrapper. */ res = NULL; synchronized = TRUE; } if (!res) { MonoJumpInfo *new_ji; new_ji = mono_patch_info_dup_mp (acfg->mempool, patch_info); res = (MonoPltEntry *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoPltEntry)); res->plt_offset = acfg->plt_offset; res->ji = new_ji; res->symbol = get_plt_symbol (acfg, res->plt_offset, patch_info); if (acfg->aot_opts.write_symbols) res->debug_sym = get_plt_entry_debug_sym (acfg, res->ji, acfg->plt_entry_debug_sym_cache); if (synchronized) { /* Avoid duplicate symbols because we don't cache */ res->symbol = g_strdup_printf ("%s_%d", res->symbol, synchronized_symbol_idx); if (res->debug_sym) res->debug_sym = g_strdup_printf ("%s_%d", res->debug_sym, synchronized_symbol_idx); synchronized_symbol_idx ++; } if (res->debug_sym) res->llvm_symbol = g_strdup_printf ("%s_%s_llvm", res->symbol, res->debug_sym); else res->llvm_symbol = g_strdup_printf ("%s_llvm", res->symbol); g_hash_table_insert (acfg->patch_to_plt_entry [new_ji->type], new_ji, res); g_hash_table_insert (acfg->plt_offset_to_entry, GUINT_TO_POINTER (res->plt_offset), res); //g_assert (mono_patch_info_equal (patch_info, new_ji)); //mono_print_ji (patch_info); printf ("\n"); //g_hash_table_print_stats (acfg->patch_to_plt_entry); acfg->plt_offset ++; } return res; } /** * get_got_offset: * * Returns the offset of the GOT slot where the runtime object resulting from resolving * JI could be found if it exists, otherwise allocates a new one. */ static guint32 get_got_offset (MonoAotCompile *acfg, gboolean llvm, MonoJumpInfo *ji) { guint32 got_offset; GotInfo *info = llvm ? &acfg->llvm_got_info : &acfg->got_info; got_offset = GPOINTER_TO_UINT (g_hash_table_lookup (info->patch_to_got_offset_by_type [ji->type], ji)); if (got_offset) return got_offset - 1; if (llvm) { got_offset = acfg->llvm_got_offset; acfg->llvm_got_offset ++; } else { got_offset = acfg->got_offset; acfg->got_offset ++; } acfg->stats.got_slots ++; acfg->stats.got_slot_types [ji->type] ++; g_hash_table_insert (info->patch_to_got_offset, ji, GUINT_TO_POINTER (got_offset + 1)); g_hash_table_insert (info->patch_to_got_offset_by_type [ji->type], ji, GUINT_TO_POINTER (got_offset + 1)); g_ptr_array_add (info->got_patches, ji); return got_offset; } /* Add a method to the list of methods which need to be emitted */ static void add_method_with_index (MonoAotCompile *acfg, MonoMethod *method, int index, gboolean extra) { g_assert (method); if (!g_hash_table_lookup (acfg->method_indexes, method)) { g_ptr_array_add (acfg->methods, method); g_hash_table_insert (acfg->method_indexes, method, GUINT_TO_POINTER (index + 1)); acfg->nmethods = acfg->methods->len + 1; } if (method->wrapper_type || extra) g_ptr_array_add (acfg->extra_methods, method); } static gboolean prefer_gsharedvt_method (MonoAotCompile *acfg, MonoMethod *method) { /* One instantiation with valuetypes is generated for each async method */ if (method->klass->image == mono_defaults.corlib && (!strcmp (method->klass->name, "AsyncMethodBuilderCore") || !strcmp (method->klass->name, "AsyncVoidMethodBuilder"))) return TRUE; else return FALSE; } static guint32 get_method_index (MonoAotCompile *acfg, MonoMethod *method) { int index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method)); g_assert (index); return index - 1; } static int add_method_full (MonoAotCompile *acfg, MonoMethod *method, gboolean extra, int depth) { int index; index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method)); if (index) return index - 1; index = acfg->method_index; add_method_with_index (acfg, method, index, extra); g_ptr_array_add (acfg->method_order, GUINT_TO_POINTER (index)); g_hash_table_insert (acfg->method_depth, method, GUINT_TO_POINTER (depth)); acfg->method_index ++; return index; } static int add_method (MonoAotCompile *acfg, MonoMethod *method) { return add_method_full (acfg, method, FALSE, 0); } static void add_extra_method_with_depth (MonoAotCompile *acfg, MonoMethod *method, int depth) { if (mono_method_is_generic_sharable_full (method, TRUE, TRUE, FALSE)) method = mini_get_shared_method (method); else if ((acfg->opts & MONO_OPT_GSHAREDVT) && prefer_gsharedvt_method (acfg, method) && mono_method_is_generic_sharable_full (method, FALSE, FALSE, TRUE)) /* Use the gsharedvt version */ method = mini_get_shared_method_full (method, TRUE, TRUE); if (acfg->aot_opts.log_generics) aot_printf (acfg, "%*sAdding method %s.\n", depth, "", mono_method_get_full_name (method)); add_method_full (acfg, method, TRUE, depth); } static void add_extra_method (MonoAotCompile *acfg, MonoMethod *method) { add_extra_method_with_depth (acfg, method, 0); } static void add_jit_icall_wrapper (gpointer key, gpointer value, gpointer user_data) { MonoAotCompile *acfg = (MonoAotCompile *)user_data; MonoJitICallInfo *callinfo = (MonoJitICallInfo *)value; MonoMethod *wrapper; char *name; if (!callinfo->sig) return; name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name); wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, TRUE); g_free (name); add_method (acfg, wrapper); } static MonoMethod* get_runtime_invoke_sig (MonoMethodSignature *sig) { MonoMethodBuilder *mb; MonoMethod *m; mb = mono_mb_new (mono_defaults.object_class, "FOO", MONO_WRAPPER_NONE); m = mono_mb_create_method (mb, sig, 16); MonoMethod *invoke = mono_marshal_get_runtime_invoke (m, FALSE); mono_mb_free (mb); return invoke; } static MonoMethod* get_runtime_invoke (MonoAotCompile *acfg, MonoMethod *method, gboolean virtual_) { return mono_marshal_get_runtime_invoke (method, virtual_); } static gboolean can_marshal_struct (MonoClass *klass) { MonoClassField *field; gboolean can_marshal = TRUE; gpointer iter = NULL; MonoMarshalType *info; int i; if (mono_class_is_auto_layout (klass)) return FALSE; info = mono_marshal_load_type_info (klass); /* Only allow a few field types to avoid asserts in the marshalling code */ while ((field = mono_class_get_fields (klass, &iter))) { if ((field->type->attrs & FIELD_ATTRIBUTE_STATIC)) continue; switch (field->type->type) { case MONO_TYPE_I4: case MONO_TYPE_U4: case MONO_TYPE_I1: case MONO_TYPE_U1: case MONO_TYPE_BOOLEAN: case MONO_TYPE_I2: case MONO_TYPE_U2: case MONO_TYPE_CHAR: case MONO_TYPE_I8: case MONO_TYPE_U8: case MONO_TYPE_I: case MONO_TYPE_U: case MONO_TYPE_PTR: case MONO_TYPE_R4: case MONO_TYPE_R8: case MONO_TYPE_STRING: break; case MONO_TYPE_VALUETYPE: if (!mono_class_from_mono_type (field->type)->enumtype && !can_marshal_struct (mono_class_from_mono_type (field->type))) can_marshal = FALSE; break; case MONO_TYPE_SZARRAY: { gboolean has_mspec = FALSE; if (info) { for (i = 0; i < info->num_fields; ++i) { if (info->fields [i].field == field && info->fields [i].mspec) has_mspec = TRUE; } } if (!has_mspec) can_marshal = FALSE; break; } default: can_marshal = FALSE; break; } } /* Special cases */ /* Its hard to compute whenever these can be marshalled or not */ if (!strcmp (klass->name_space, "System.Net.NetworkInformation.MacOsStructs") && strcmp (klass->name, "sockaddr_dl")) return TRUE; return can_marshal; } static void create_gsharedvt_inst (MonoAotCompile *acfg, MonoMethod *method, MonoGenericContext *ctx) { /* Create a vtype instantiation */ MonoGenericContext shared_context; MonoType **args; MonoGenericInst *inst; MonoGenericContainer *container; MonoClass **constraints; int i; memset (ctx, 0, sizeof (MonoGenericContext)); if (mono_class_is_gtd (method->klass)) { shared_context = mono_class_get_generic_container (method->klass)->context; inst = shared_context.class_inst; args = g_new0 (MonoType*, inst->type_argc); for (i = 0; i < inst->type_argc; ++i) { args [i] = &mono_defaults.int_class->byval_arg; } ctx->class_inst = mono_metadata_get_generic_inst (inst->type_argc, args); } if (method->is_generic) { container = mono_method_get_generic_container (method); shared_context = container->context; inst = shared_context.method_inst; args = g_new0 (MonoType*, inst->type_argc); for (i = 0; i < container->type_argc; ++i) { MonoGenericParamInfo *info = &container->type_params [i].info; gboolean ref_only = FALSE; if (info && info->constraints) { constraints = info->constraints; while (*constraints) { MonoClass *cklass = *constraints; if (!(cklass == mono_defaults.object_class || (cklass->image == mono_defaults.corlib && !strcmp (cklass->name, "ValueType")))) /* Inflaring the method with our vtype would not be valid */ ref_only = TRUE; constraints ++; } } if (ref_only) args [i] = &mono_defaults.object_class->byval_arg; else args [i] = &mono_defaults.int_class->byval_arg; } ctx->method_inst = mono_metadata_get_generic_inst (inst->type_argc, args); } } static void add_wrappers (MonoAotCompile *acfg) { MonoMethod *method, *m; int i, j; MonoMethodSignature *sig, *csig; guint32 token; /* * FIXME: Instead of AOTing all the wrappers, it might be better to redesign them * so there is only one wrapper of a given type, or inlining their contents into their * callers. */ for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) { MonoError error; MonoMethod *method; guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1); gboolean skip = FALSE; method = mono_get_method_checked (acfg->image, token, NULL, NULL, &error); report_loader_error (acfg, &error, TRUE, "Failed to load method token 0x%x due to %s\n", i, mono_error_get_message (&error)); if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) || (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) || (method->flags & METHOD_ATTRIBUTE_ABSTRACT)) skip = TRUE; /* Skip methods which can not be handled by get_runtime_invoke () */ sig = mono_method_signature (method); if (!sig) continue; if ((sig->ret->type == MONO_TYPE_PTR) || (sig->ret->type == MONO_TYPE_TYPEDBYREF)) skip = TRUE; if (mono_class_is_open_constructed_type (sig->ret)) skip = TRUE; for (j = 0; j < sig->param_count; j++) { if (sig->params [j]->type == MONO_TYPE_TYPEDBYREF) skip = TRUE; if (mono_class_is_open_constructed_type (sig->params [j])) skip = TRUE; } #ifdef MONO_ARCH_DYN_CALL_SUPPORTED if (!mono_class_is_contextbound (method->klass)) { MonoDynCallInfo *info = mono_arch_dyn_call_prepare (sig); gboolean has_nullable = FALSE; for (j = 0; j < sig->param_count; j++) { if (sig->params [j]->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (sig->params [j]))) has_nullable = TRUE; } if (info && !has_nullable && !acfg->aot_opts.llvm_only) { /* Supported by the dynamic runtime-invoke wrapper */ skip = TRUE; } if (info) mono_arch_dyn_call_free (info); } #endif if (acfg->aot_opts.llvm_only) /* Supported by the gsharedvt based runtime-invoke wrapper */ skip = TRUE; if (!skip) { //printf ("%s\n", mono_method_full_name (method, TRUE)); add_method (acfg, get_runtime_invoke (acfg, method, FALSE)); } } if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) { int nallocators; /* Runtime invoke wrappers */ /* void runtime-invoke () [.cctor] */ csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0); csig->ret = &mono_defaults.void_class->byval_arg; add_method (acfg, get_runtime_invoke_sig (csig)); /* void runtime-invoke () [Finalize] */ csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0); csig->hasthis = 1; csig->ret = &mono_defaults.void_class->byval_arg; add_method (acfg, get_runtime_invoke_sig (csig)); /* void runtime-invoke (string) [exception ctor] */ csig = mono_metadata_signature_alloc (mono_defaults.corlib, 1); csig->hasthis = 1; csig->ret = &mono_defaults.void_class->byval_arg; csig->params [0] = &mono_defaults.string_class->byval_arg; add_method (acfg, get_runtime_invoke_sig (csig)); /* void runtime-invoke (string, string) [exception ctor] */ csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2); csig->hasthis = 1; csig->ret = &mono_defaults.void_class->byval_arg; csig->params [0] = &mono_defaults.string_class->byval_arg; csig->params [1] = &mono_defaults.string_class->byval_arg; add_method (acfg, get_runtime_invoke_sig (csig)); /* string runtime-invoke () [Exception.ToString ()] */ csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0); csig->hasthis = 1; csig->ret = &mono_defaults.string_class->byval_arg; add_method (acfg, get_runtime_invoke_sig (csig)); /* void runtime-invoke (string, Exception) [exception ctor] */ csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2); csig->hasthis = 1; csig->ret = &mono_defaults.void_class->byval_arg; csig->params [0] = &mono_defaults.string_class->byval_arg; csig->params [1] = &mono_defaults.exception_class->byval_arg; add_method (acfg, get_runtime_invoke_sig (csig)); /* Assembly runtime-invoke (string, Assembly, bool) [DoAssemblyResolve] */ csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3); csig->hasthis = 1; csig->ret = &(mono_class_load_from_name ( mono_defaults.corlib, "System.Reflection", "Assembly"))->byval_arg; csig->params [0] = &mono_defaults.string_class->byval_arg; csig->params [1] = &(mono_class_load_from_name (mono_defaults.corlib, "System.Reflection", "Assembly"))->byval_arg; csig->params [2] = &mono_defaults.boolean_class->byval_arg; add_method (acfg, get_runtime_invoke_sig (csig)); /* runtime-invoke used by finalizers */ add_method (acfg, get_runtime_invoke (acfg, mono_class_get_method_from_name_flags (mono_defaults.object_class, "Finalize", 0, 0), TRUE)); /* This is used by mono_runtime_capture_context () */ method = mono_get_context_capture_method (); if (method) add_method (acfg, get_runtime_invoke (acfg, method, FALSE)); #ifdef MONO_ARCH_DYN_CALL_SUPPORTED if (!acfg->aot_opts.llvm_only) add_method (acfg, mono_marshal_get_runtime_invoke_dynamic ()); #endif /* These are used by mono_jit_runtime_invoke () to calls gsharedvt out wrappers */ if (acfg->aot_opts.llvm_only) { int variants; /* Create simplified signatures which match the signature used by the gsharedvt out wrappers */ for (variants = 0; variants < 4; ++variants) { for (i = 0; i < 16; ++i) { sig = mini_get_gsharedvt_out_sig_wrapper_signature ((variants & 1) > 0, (variants & 2) > 0, i); add_extra_method (acfg, mono_marshal_get_runtime_invoke_for_sig (sig)); g_free (sig); } } } /* stelemref */ add_method (acfg, mono_marshal_get_stelemref ()); /* Managed Allocators */ nallocators = mono_gc_get_managed_allocator_types (); for (i = 0; i < nallocators; ++i) { if ((m = mono_gc_get_managed_allocator_by_type (i, MANAGED_ALLOCATOR_REGULAR))) add_method (acfg, m); if ((m = mono_gc_get_managed_allocator_by_type (i, MANAGED_ALLOCATOR_SLOW_PATH))) add_method (acfg, m); if ((m = mono_gc_get_managed_allocator_by_type (i, MANAGED_ALLOCATOR_PROFILER))) add_method (acfg, m); } /* write barriers */ if (mono_gc_is_moving ()) { add_method (acfg, mono_gc_get_specific_write_barrier (FALSE)); add_method (acfg, mono_gc_get_specific_write_barrier (TRUE)); } /* Stelemref wrappers */ { MonoMethod **wrappers; int nwrappers; wrappers = mono_marshal_get_virtual_stelemref_wrappers (&nwrappers); for (i = 0; i < nwrappers; ++i) add_method (acfg, wrappers [i]); g_free (wrappers); } /* castclass_with_check wrapper */ add_method (acfg, mono_marshal_get_castclass_with_cache ()); /* isinst_with_check wrapper */ add_method (acfg, mono_marshal_get_isinst_with_cache ()); /* JIT icall wrappers */ /* FIXME: locking - this is "safe" as full-AOT threads don't mutate the icall hash*/ g_hash_table_foreach (mono_get_jit_icall_info (), add_jit_icall_wrapper, acfg); } /* * remoting-invoke-with-check wrappers are very frequent, so avoid emitting them, * we use the original method instead at runtime. * Since full-aot doesn't support remoting, this is not a problem. */ #if 0 /* remoting-invoke wrappers */ for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) { MonoError error; MonoMethodSignature *sig; token = MONO_TOKEN_METHOD_DEF | (i + 1); method = mono_get_method_checked (acfg->image, token, NULL, NULL, &error); g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */ sig = mono_method_signature (method); if (sig->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class)) { m = mono_marshal_get_remoting_invoke_with_check (method); add_method (acfg, m); } } #endif /* delegate-invoke wrappers */ for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) { MonoError error; MonoClass *klass; MonoCustomAttrInfo *cattr; token = MONO_TOKEN_TYPE_DEF | (i + 1); klass = mono_class_get_checked (acfg->image, token, &error); if (!klass) { mono_error_cleanup (&error); continue; } if (!klass->delegate || klass == mono_defaults.delegate_class || klass == mono_defaults.multicastdelegate_class) continue; if (!mono_class_is_gtd (klass)) { method = mono_get_delegate_invoke (klass); m = mono_marshal_get_delegate_invoke (method, NULL); add_method (acfg, m); method = mono_class_get_method_from_name_flags (klass, "BeginInvoke", -1, 0); if (method) add_method (acfg, mono_marshal_get_delegate_begin_invoke (method)); method = mono_class_get_method_from_name_flags (klass, "EndInvoke", -1, 0); if (method) add_method (acfg, mono_marshal_get_delegate_end_invoke (method)); cattr = mono_custom_attrs_from_class_checked (klass, &error); if (!is_ok (&error)) { mono_error_cleanup (&error); continue; } if (cattr) { int j; for (j = 0; j < cattr->num_attrs; ++j) if (cattr->attrs [j].ctor && (!strcmp (cattr->attrs [j].ctor->klass->name, "MonoNativeFunctionWrapperAttribute") || !strcmp (cattr->attrs [j].ctor->klass->name, "UnmanagedFunctionPointerAttribute"))) break; if (j < cattr->num_attrs) { MonoMethod *invoke; MonoMethod *wrapper; MonoMethod *del_invoke; /* Add wrappers needed by mono_ftnptr_to_delegate () */ invoke = mono_get_delegate_invoke (klass); wrapper = mono_marshal_get_native_func_wrapper_aot (klass); del_invoke = mono_marshal_get_delegate_invoke_internal (invoke, FALSE, TRUE, wrapper); add_method (acfg, wrapper); add_method (acfg, del_invoke); } } } else if ((acfg->opts & MONO_OPT_GSHAREDVT) && mono_class_is_gtd (klass)) { MonoError error; MonoGenericContext ctx; MonoMethod *inst, *gshared; /* * Emit gsharedvt versions of the generic delegate-invoke wrappers */ /* Invoke */ method = mono_get_delegate_invoke (klass); create_gsharedvt_inst (acfg, method, &ctx); inst = mono_class_inflate_generic_method_checked (method, &ctx, &error); g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */ m = mono_marshal_get_delegate_invoke (inst, NULL); g_assert (m->is_inflated); gshared = mini_get_shared_method_full (m, FALSE, TRUE); add_extra_method (acfg, gshared); /* begin-invoke */ method = mono_get_delegate_begin_invoke (klass); if (method) { create_gsharedvt_inst (acfg, method, &ctx); inst = mono_class_inflate_generic_method_checked (method, &ctx, &error); g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */ m = mono_marshal_get_delegate_begin_invoke (inst); g_assert (m->is_inflated); gshared = mini_get_shared_method_full (m, FALSE, TRUE); add_extra_method (acfg, gshared); } /* end-invoke */ method = mono_get_delegate_end_invoke (klass); if (method) { create_gsharedvt_inst (acfg, method, &ctx); inst = mono_class_inflate_generic_method_checked (method, &ctx, &error); g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */ m = mono_marshal_get_delegate_end_invoke (inst); g_assert (m->is_inflated); gshared = mini_get_shared_method_full (m, FALSE, TRUE); add_extra_method (acfg, gshared); } } } /* array access wrappers */ for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) { MonoError error; MonoClass *klass; token = MONO_TOKEN_TYPE_SPEC | (i + 1); klass = mono_class_get_checked (acfg->image, token, &error); if (!klass) { mono_error_cleanup (&error); continue; } if (klass->rank && MONO_TYPE_IS_PRIMITIVE (&klass->element_class->byval_arg)) { MonoMethod *m, *wrapper; /* Add runtime-invoke wrappers too */ m = mono_class_get_method_from_name (klass, "Get", -1); g_assert (m); wrapper = mono_marshal_get_array_accessor_wrapper (m); add_extra_method (acfg, wrapper); if (!acfg->aot_opts.llvm_only) add_extra_method (acfg, get_runtime_invoke (acfg, wrapper, FALSE)); m = mono_class_get_method_from_name (klass, "Set", -1); g_assert (m); wrapper = mono_marshal_get_array_accessor_wrapper (m); add_extra_method (acfg, wrapper); if (!acfg->aot_opts.llvm_only) add_extra_method (acfg, get_runtime_invoke (acfg, wrapper, FALSE)); } } /* Synchronized wrappers */ for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) { MonoError error; token = MONO_TOKEN_METHOD_DEF | (i + 1); method = mono_get_method_checked (acfg->image, token, NULL, NULL, &error); report_loader_error (acfg, &error, TRUE, "Failed to load method token 0x%x due to %s\n", i, mono_error_get_message (&error)); if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) { if (method->is_generic) { // FIXME: } else if ((acfg->opts & MONO_OPT_GSHAREDVT) && mono_class_is_gtd (method->klass)) { MonoError error; MonoGenericContext ctx; MonoMethod *inst, *gshared, *m; /* * Create a generic wrapper for a generic instance, and AOT that. */ create_gsharedvt_inst (acfg, method, &ctx); inst = mono_class_inflate_generic_method_checked (method, &ctx, &error); g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */ m = mono_marshal_get_synchronized_wrapper (inst); g_assert (m->is_inflated); gshared = mini_get_shared_method_full (m, FALSE, TRUE); add_method (acfg, gshared); } else { add_method (acfg, mono_marshal_get_synchronized_wrapper (method)); } } } /* pinvoke wrappers */ for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) { MonoError error; MonoMethod *method; guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1); method = mono_get_method_checked (acfg->image, token, NULL, NULL, &error); report_loader_error (acfg, &error, TRUE, "Failed to load method token 0x%x due to %s\n", i, mono_error_get_message (&error)); if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) || (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) { add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE)); } if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) { if (acfg->aot_opts.llvm_only) { /* The wrappers have a different signature (hasthis is not set) so need to add this too */ add_gsharedvt_wrappers (acfg, mono_method_signature (method), FALSE, TRUE); } } } /* native-to-managed wrappers */ for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) { MonoError error; MonoMethod *method; guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1); MonoCustomAttrInfo *cattr; int j; method = mono_get_method_checked (acfg->image, token, NULL, NULL, &error); report_loader_error (acfg, &error, TRUE, "Failed to load method token 0x%x due to %s\n", i, mono_error_get_message (&error)); /* * Only generate native-to-managed wrappers for methods which have an * attribute named MonoPInvokeCallbackAttribute. We search for the attribute by * name to avoid defining a new assembly to contain it. */ cattr = mono_custom_attrs_from_method_checked (method, &error); if (!is_ok (&error)) { char *name = mono_method_get_full_name (method); report_loader_error (acfg, &error, TRUE, "Failed to load custom attributes from method %s due to %s\n", name, mono_error_get_message (&error)); g_free (name); } if (cattr) { for (j = 0; j < cattr->num_attrs; ++j) if (cattr->attrs [j].ctor && !strcmp (cattr->attrs [j].ctor->klass->name, "MonoPInvokeCallbackAttribute")) break; if (j < cattr->num_attrs) { MonoCustomAttrEntry *e = &cattr->attrs [j]; MonoMethodSignature *sig = mono_method_signature (e->ctor); const char *p = (const char*)e->data; const char *named; int slen, num_named, named_type; char *n; MonoType *t; MonoClass *klass; char *export_name = NULL; MonoMethod *wrapper; /* this cannot be enforced by the C# compiler so we must give the user some warning before aborting */ if (!(method->flags & METHOD_ATTRIBUTE_STATIC)) { g_warning ("AOT restriction: Method '%s' must be static since it is decorated with [MonoPInvokeCallback]. See http://ios.xamarin.com/Documentation/Limitations#Reverse_Callbacks", mono_method_full_name (method, TRUE)); exit (1); } g_assert (sig->param_count == 1); g_assert (sig->params [0]->type == MONO_TYPE_CLASS && !strcmp (mono_class_from_mono_type (sig->params [0])->name, "Type")); /* * Decode the cattr manually since we can't create objects * during aot compilation. */ /* Skip prolog */ p += 2; /* From load_cattr_value () in reflection.c */ slen = mono_metadata_decode_value (p, &p); n = (char *)g_memdup (p, slen + 1); n [slen] = 0; t = mono_reflection_type_from_name_checked (n, acfg->image, &error); g_assert (t); mono_error_assert_ok (&error); g_free (n); klass = mono_class_from_mono_type (t); g_assert (klass->parent == mono_defaults.multicastdelegate_class); p += slen; num_named = read16 (p); p += 2; g_assert (num_named < 2); if (num_named == 1) { int name_len; char *name; /* parse ExportSymbol attribute */ named = p; named_type = *named; named += 1; /* data_type = *named; */ named += 1; name_len = mono_metadata_decode_blob_size (named, &named); name = (char *)g_malloc (name_len + 1); memcpy (name, named, name_len); name [name_len] = 0; named += name_len; g_assert (named_type == 0x54); g_assert (!strcmp (name, "ExportSymbol")); /* load_cattr_value (), string case */ g_assert (*named != (char)0xff); slen = mono_metadata_decode_value (named, &named); export_name = (char *)g_malloc (slen + 1); memcpy (export_name, named, slen); export_name [slen] = 0; named += slen; } wrapper = mono_marshal_get_managed_wrapper (method, klass, 0, &error); mono_error_assert_ok (&error); add_method (acfg, wrapper); if (export_name) g_hash_table_insert (acfg->export_names, wrapper, export_name); } g_free (cattr); } if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) || (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) { add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE)); } } /* StructureToPtr/PtrToStructure wrappers */ for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) { MonoError error; MonoClass *klass; token = MONO_TOKEN_TYPE_DEF | (i + 1); klass = mono_class_get_checked (acfg->image, token, &error); if (!klass) { mono_error_cleanup (&error); continue; } if (klass->valuetype && !mono_class_is_gtd (klass) && can_marshal_struct (klass) && !(klass->nested_in && strstr (klass->nested_in->name, "") == klass->nested_in->name)) { add_method (acfg, mono_marshal_get_struct_to_ptr (klass)); add_method (acfg, mono_marshal_get_ptr_to_struct (klass)); } } } static gboolean has_type_vars (MonoClass *klass) { if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) return TRUE; if (klass->rank) return has_type_vars (klass->element_class); if (mono_class_is_ginst (klass)) { MonoGenericContext *context = &mono_class_get_generic_class (klass)->context; if (context->class_inst) { int i; for (i = 0; i < context->class_inst->type_argc; ++i) if (has_type_vars (mono_class_from_mono_type (context->class_inst->type_argv [i]))) return TRUE; } } if (mono_class_is_gtd (klass)) return TRUE; return FALSE; } static gboolean is_vt_inst (MonoGenericInst *inst) { int i; for (i = 0; i < inst->type_argc; ++i) { MonoType *t = inst->type_argv [i]; if (MONO_TYPE_ISSTRUCT (t) || t->type == MONO_TYPE_VALUETYPE) return TRUE; } return FALSE; } static gboolean method_has_type_vars (MonoMethod *method) { if (has_type_vars (method->klass)) return TRUE; if (method->is_inflated) { MonoGenericContext *context = mono_method_get_context (method); if (context->method_inst) { int i; for (i = 0; i < context->method_inst->type_argc; ++i) if (has_type_vars (mono_class_from_mono_type (context->method_inst->type_argv [i]))) return TRUE; } } return FALSE; } static gboolean mono_aot_mode_is_full (MonoAotOptions *opts) { return opts->mode == MONO_AOT_MODE_FULL || opts->mode == MONO_AOT_MODE_INTERP; } static gboolean mono_aot_mode_is_interp (MonoAotOptions *opts) { return opts->mode == MONO_AOT_MODE_INTERP; } static gboolean mono_aot_mode_is_hybrid (MonoAotOptions *opts) { return opts->mode == MONO_AOT_MODE_HYBRID; } static void add_generic_class_with_depth (MonoAotCompile *acfg, MonoClass *klass, int depth, const char *ref); static void add_generic_class (MonoAotCompile *acfg, MonoClass *klass, gboolean force, const char *ref) { /* This might lead to a huge code blowup so only do it if neccesary */ if (!mono_aot_mode_is_full (&acfg->aot_opts) && !mono_aot_mode_is_hybrid (&acfg->aot_opts) && !force) return; add_generic_class_with_depth (acfg, klass, 0, ref); } static gboolean check_type_depth (MonoType *t, int depth) { int i; if (depth > 8) return TRUE; switch (t->type) { case MONO_TYPE_GENERICINST: { MonoGenericClass *gklass = t->data.generic_class; MonoGenericInst *ginst = gklass->context.class_inst; if (ginst) { for (i = 0; i < ginst->type_argc; ++i) { if (check_type_depth (ginst->type_argv [i], depth + 1)) return TRUE; } } break; } default: break; } return FALSE; } static void add_types_from_method_header (MonoAotCompile *acfg, MonoMethod *method); /* * add_generic_class: * * Add all methods of a generic class. */ static void add_generic_class_with_depth (MonoAotCompile *acfg, MonoClass *klass, int depth, const char *ref) { MonoMethod *method; MonoClassField *field; gpointer iter; gboolean use_gsharedvt = FALSE; if (!acfg->ginst_hash) acfg->ginst_hash = g_hash_table_new (NULL, NULL); mono_class_init (klass); if (mono_class_is_ginst (klass) && mono_class_get_generic_class (klass)->context.class_inst->is_open) return; if (has_type_vars (klass)) return; if (!mono_class_is_ginst (klass) && !klass->rank) return; if (mono_class_has_failure (klass)) return; if (!acfg->ginst_hash) acfg->ginst_hash = g_hash_table_new (NULL, NULL); if (g_hash_table_lookup (acfg->ginst_hash, klass)) return; if (check_type_depth (&klass->byval_arg, 0)) return; if (acfg->aot_opts.log_generics) aot_printf (acfg, "%*sAdding generic instance %s [%s].\n", depth, "", mono_type_full_name (&klass->byval_arg), ref); g_hash_table_insert (acfg->ginst_hash, klass, klass); /* * Use gsharedvt for generic collections with vtype arguments to avoid code blowup. * Enable this only for some classes since gsharedvt might not support all methods. */ if ((acfg->opts & MONO_OPT_GSHAREDVT) && klass->image == mono_defaults.corlib && mono_class_is_ginst (klass) && mono_class_get_generic_class (klass)->context.class_inst && is_vt_inst (mono_class_get_generic_class (klass)->context.class_inst) && (!strcmp (klass->name, "Dictionary`2") || !strcmp (klass->name, "List`1") || !strcmp (klass->name, "ReadOnlyCollection`1"))) use_gsharedvt = TRUE; iter = NULL; while ((method = mono_class_get_methods (klass, &iter))) { if ((acfg->opts & MONO_OPT_GSHAREDVT) && method->is_inflated && mono_method_get_context (method)->method_inst) { /* * This is partial sharing, and we can't handle it yet */ continue; } if (mono_method_is_generic_sharable_full (method, FALSE, FALSE, use_gsharedvt)) { /* Already added */ add_types_from_method_header (acfg, method); continue; } if (method->is_generic) /* FIXME: */ continue; /* * FIXME: Instances which are referenced by these methods are not added, * for example Array.Resize for List.Add (). */ add_extra_method_with_depth (acfg, method, depth + 1); } iter = NULL; while ((field = mono_class_get_fields (klass, &iter))) { if (field->type->type == MONO_TYPE_GENERICINST) add_generic_class_with_depth (acfg, mono_class_from_mono_type (field->type), depth + 1, "field"); } if (klass->delegate) { method = mono_get_delegate_invoke (klass); method = mono_marshal_get_delegate_invoke (method, NULL); if (acfg->aot_opts.log_generics) aot_printf (acfg, "%*sAdding method %s.\n", depth, "", mono_method_get_full_name (method)); add_method (acfg, method); } /* Add superclasses */ if (klass->parent) add_generic_class_with_depth (acfg, klass->parent, depth, "parent"); /* * For ICollection, add instances of the helper methods * in Array, since a T[] could be cast to ICollection. */ if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && (!strcmp(klass->name, "ICollection`1") || !strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IList`1") || !strcmp (klass->name, "IEnumerator`1") || !strcmp (klass->name, "IReadOnlyList`1"))) { MonoClass *tclass = mono_class_from_mono_type (mono_class_get_generic_class (klass)->context.class_inst->type_argv [0]); MonoClass *array_class = mono_bounded_array_class_get (tclass, 1, FALSE); gpointer iter; char *name_prefix; if (!strcmp (klass->name, "IEnumerator`1")) name_prefix = g_strdup_printf ("%s.%s", klass->name_space, "IEnumerable`1"); else name_prefix = g_strdup_printf ("%s.%s", klass->name_space, klass->name); /* Add the T[]/InternalEnumerator class */ if (!strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IEnumerator`1")) { MonoError error; MonoClass *nclass; iter = NULL; while ((nclass = mono_class_get_nested_types (array_class->parent, &iter))) { if (!strcmp (nclass->name, "InternalEnumerator`1")) break; } g_assert (nclass); nclass = mono_class_inflate_generic_class_checked (nclass, mono_generic_class_get_context (mono_class_get_generic_class (klass)), &error); mono_error_assert_ok (&error); /* FIXME don't swallow the error */ add_generic_class (acfg, nclass, FALSE, "ICollection"); } iter = NULL; while ((method = mono_class_get_methods (array_class, &iter))) { if (strstr (method->name, name_prefix)) { MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method); add_extra_method_with_depth (acfg, m, depth); } } g_free (name_prefix); } /* Add an instance of GenericComparer which is created dynamically by Comparer */ if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "Comparer`1")) { MonoError error; MonoClass *tclass = mono_class_from_mono_type (mono_class_get_generic_class (klass)->context.class_inst->type_argv [0]); MonoClass *icomparable, *gcomparer, *icomparable_inst; MonoGenericContext ctx; MonoType *args [16]; memset (&ctx, 0, sizeof (ctx)); icomparable = mono_class_load_from_name (mono_defaults.corlib, "System", "IComparable`1"); args [0] = &tclass->byval_arg; ctx.class_inst = mono_metadata_get_generic_inst (1, args); icomparable_inst = mono_class_inflate_generic_class_checked (icomparable, &ctx, &error); mono_error_assert_ok (&error); /* FIXME don't swallow the error */ if (mono_class_is_assignable_from (icomparable_inst, tclass)) { MonoClass *gcomparer_inst; gcomparer = mono_class_load_from_name (mono_defaults.corlib, "System.Collections.Generic", "GenericComparer`1"); gcomparer_inst = mono_class_inflate_generic_class_checked (gcomparer, &ctx, &error); mono_error_assert_ok (&error); /* FIXME don't swallow the error */ add_generic_class (acfg, gcomparer_inst, FALSE, "Comparer"); } } /* Add an instance of GenericEqualityComparer which is created dynamically by EqualityComparer */ if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "EqualityComparer`1")) { MonoError error; MonoClass *tclass = mono_class_from_mono_type (mono_class_get_generic_class (klass)->context.class_inst->type_argv [0]); MonoClass *iface, *gcomparer, *iface_inst; MonoGenericContext ctx; MonoType *args [16]; memset (&ctx, 0, sizeof (ctx)); iface = mono_class_load_from_name (mono_defaults.corlib, "System", "IEquatable`1"); g_assert (iface); args [0] = &tclass->byval_arg; ctx.class_inst = mono_metadata_get_generic_inst (1, args); iface_inst = mono_class_inflate_generic_class_checked (iface, &ctx, &error); mono_error_assert_ok (&error); /* FIXME don't swallow the error */ if (mono_class_is_assignable_from (iface_inst, tclass)) { MonoClass *gcomparer_inst; MonoError error; gcomparer = mono_class_load_from_name (mono_defaults.corlib, "System.Collections.Generic", "GenericEqualityComparer`1"); gcomparer_inst = mono_class_inflate_generic_class_checked (gcomparer, &ctx, &error); mono_error_assert_ok (&error); /* FIXME don't swallow the error */ add_generic_class (acfg, gcomparer_inst, FALSE, "EqualityComparer"); } } /* Add an instance of EnumComparer which is created dynamically by EqualityComparer for enums */ if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "EqualityComparer`1")) { MonoClass *enum_comparer; MonoClass *tclass = mono_class_from_mono_type (mono_class_get_generic_class (klass)->context.class_inst->type_argv [0]); MonoGenericContext ctx; MonoType *args [16]; if (mono_class_is_enum (tclass)) { MonoClass *enum_comparer_inst; MonoError error; memset (&ctx, 0, sizeof (ctx)); args [0] = &tclass->byval_arg; ctx.class_inst = mono_metadata_get_generic_inst (1, args); enum_comparer = mono_class_load_from_name (mono_defaults.corlib, "System.Collections.Generic", "EnumEqualityComparer`1"); enum_comparer_inst = mono_class_inflate_generic_class_checked (enum_comparer, &ctx, &error); mono_error_assert_ok (&error); /* FIXME don't swallow the error */ add_generic_class (acfg, enum_comparer_inst, FALSE, "EqualityComparer"); } } /* Add an instance of ObjectComparer which is created dynamically by Comparer for enums */ if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "Comparer`1")) { MonoClass *comparer; MonoClass *tclass = mono_class_from_mono_type (mono_class_get_generic_class (klass)->context.class_inst->type_argv [0]); MonoGenericContext ctx; MonoType *args [16]; if (mono_class_is_enum (tclass)) { MonoClass *comparer_inst; MonoError error; memset (&ctx, 0, sizeof (ctx)); args [0] = &tclass->byval_arg; ctx.class_inst = mono_metadata_get_generic_inst (1, args); comparer = mono_class_load_from_name (mono_defaults.corlib, "System.Collections.Generic", "ObjectComparer`1"); comparer_inst = mono_class_inflate_generic_class_checked (comparer, &ctx, &error); mono_error_assert_ok (&error); /* FIXME don't swallow the error */ add_generic_class (acfg, comparer_inst, FALSE, "Comparer"); } } } static void add_instances_of (MonoAotCompile *acfg, MonoClass *klass, MonoType **insts, int ninsts, gboolean force) { int i; MonoGenericContext ctx; MonoType *args [16]; if (acfg->aot_opts.no_instances) return; memset (&ctx, 0, sizeof (ctx)); for (i = 0; i < ninsts; ++i) { MonoError error; MonoClass *generic_inst; args [0] = insts [i]; ctx.class_inst = mono_metadata_get_generic_inst (1, args); generic_inst = mono_class_inflate_generic_class_checked (klass, &ctx, &error); mono_error_assert_ok (&error); /* FIXME don't swallow the error */ add_generic_class (acfg, generic_inst, force, ""); } } static void add_types_from_method_header (MonoAotCompile *acfg, MonoMethod *method) { MonoError error; MonoMethodHeader *header; MonoMethodSignature *sig; int j, depth; depth = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_depth, method)); sig = mono_method_signature (method); if (sig) { for (j = 0; j < sig->param_count; ++j) if (sig->params [j]->type == MONO_TYPE_GENERICINST) add_generic_class_with_depth (acfg, mono_class_from_mono_type (sig->params [j]), depth + 1, "arg"); } header = mono_method_get_header_checked (method, &error); if (header) { for (j = 0; j < header->num_locals; ++j) if (header->locals [j]->type == MONO_TYPE_GENERICINST) add_generic_class_with_depth (acfg, mono_class_from_mono_type (header->locals [j]), depth + 1, "local"); mono_metadata_free_mh (header); } else { mono_error_cleanup (&error); /* FIXME report the error */ } } /* * add_generic_instances: * * Add instances referenced by the METHODSPEC/TYPESPEC table. */ static void add_generic_instances (MonoAotCompile *acfg) { int i; guint32 token; MonoMethod *method; MonoGenericContext *context; if (acfg->aot_opts.no_instances) return; for (i = 0; i < acfg->image->tables [MONO_TABLE_METHODSPEC].rows; ++i) { MonoError error; token = MONO_TOKEN_METHOD_SPEC | (i + 1); method = mono_get_method_checked (acfg->image, token, NULL, NULL, &error); if (!method) { aot_printerrf (acfg, "Failed to load methodspec 0x%x due to %s.\n", token, mono_error_get_message (&error)); aot_printerrf (acfg, "Run with MONO_LOG_LEVEL=debug for more information.\n"); mono_error_cleanup (&error); continue; } if (method->klass->image != acfg->image) continue; context = mono_method_get_context (method); if (context && ((context->class_inst && context->class_inst->is_open))) continue; /* * For open methods, create an instantiation which can be passed to the JIT. * FIXME: Handle class_inst as well. */ if (context && context->method_inst && context->method_inst->is_open) { MonoError error; MonoGenericContext shared_context; MonoGenericInst *inst; MonoType **type_argv; int i; MonoMethod *declaring_method; gboolean supported = TRUE; /* Check that the context doesn't contain open constructed types */ if (context->class_inst) { inst = context->class_inst; for (i = 0; i < inst->type_argc; ++i) { if (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR) continue; if (mono_class_is_open_constructed_type (inst->type_argv [i])) supported = FALSE; } } if (context->method_inst) { inst = context->method_inst; for (i = 0; i < inst->type_argc; ++i) { if (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR) continue; if (mono_class_is_open_constructed_type (inst->type_argv [i])) supported = FALSE; } } if (!supported) continue; memset (&shared_context, 0, sizeof (MonoGenericContext)); inst = context->class_inst; if (inst) { type_argv = g_new0 (MonoType*, inst->type_argc); for (i = 0; i < inst->type_argc; ++i) { if (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR) type_argv [i] = &mono_defaults.object_class->byval_arg; else type_argv [i] = inst->type_argv [i]; } shared_context.class_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv); g_free (type_argv); } inst = context->method_inst; if (inst) { type_argv = g_new0 (MonoType*, inst->type_argc); for (i = 0; i < inst->type_argc; ++i) { if (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR) type_argv [i] = &mono_defaults.object_class->byval_arg; else type_argv [i] = inst->type_argv [i]; } shared_context.method_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv); g_free (type_argv); } if (method->is_generic || mono_class_is_gtd (method->klass)) declaring_method = method; else declaring_method = mono_method_get_declaring_generic_method (method); method = mono_class_inflate_generic_method_checked (declaring_method, &shared_context, &error); g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */ } /* * If the method is fully sharable, it was already added in place of its * generic definition. */ if (mono_method_is_generic_sharable_full (method, FALSE, FALSE, FALSE)) continue; /* * FIXME: Partially shared methods are not shared here, so we end up with * many identical methods. */ add_extra_method (acfg, method); } for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) { MonoError error; MonoClass *klass; token = MONO_TOKEN_TYPE_SPEC | (i + 1); klass = mono_class_get_checked (acfg->image, token, &error); if (!klass || klass->rank) { mono_error_cleanup (&error); continue; } add_generic_class (acfg, klass, FALSE, "typespec"); } /* Add types of args/locals */ for (i = 0; i < acfg->methods->len; ++i) { method = (MonoMethod *)g_ptr_array_index (acfg->methods, i); add_types_from_method_header (acfg, method); } if (acfg->image == mono_defaults.corlib) { MonoClass *klass; MonoType *insts [256]; int ninsts = 0; insts [ninsts ++] = &mono_defaults.byte_class->byval_arg; insts [ninsts ++] = &mono_defaults.sbyte_class->byval_arg; insts [ninsts ++] = &mono_defaults.int16_class->byval_arg; insts [ninsts ++] = &mono_defaults.uint16_class->byval_arg; insts [ninsts ++] = &mono_defaults.int32_class->byval_arg; insts [ninsts ++] = &mono_defaults.uint32_class->byval_arg; insts [ninsts ++] = &mono_defaults.int64_class->byval_arg; insts [ninsts ++] = &mono_defaults.uint64_class->byval_arg; insts [ninsts ++] = &mono_defaults.single_class->byval_arg; insts [ninsts ++] = &mono_defaults.double_class->byval_arg; insts [ninsts ++] = &mono_defaults.char_class->byval_arg; insts [ninsts ++] = &mono_defaults.boolean_class->byval_arg; /* Add GenericComparer instances for primitive types for Enum.ToString () */ klass = mono_class_try_load_from_name (acfg->image, "System.Collections.Generic", "GenericComparer`1"); if (klass) add_instances_of (acfg, klass, insts, ninsts, TRUE); klass = mono_class_try_load_from_name (acfg->image, "System.Collections.Generic", "GenericEqualityComparer`1"); if (klass) add_instances_of (acfg, klass, insts, ninsts, TRUE); /* Add instances of EnumEqualityComparer which are created by EqualityComparer for enums */ { MonoClass *enum_comparer; MonoType *insts [16]; int ninsts; ninsts = 0; insts [ninsts ++] = &mono_defaults.int32_class->byval_arg; insts [ninsts ++] = &mono_defaults.uint32_class->byval_arg; insts [ninsts ++] = &mono_defaults.uint16_class->byval_arg; insts [ninsts ++] = &mono_defaults.byte_class->byval_arg; enum_comparer = mono_class_load_from_name (mono_defaults.corlib, "System.Collections.Generic", "EnumEqualityComparer`1"); add_instances_of (acfg, enum_comparer, insts, ninsts, FALSE); ninsts = 0; insts [ninsts ++] = &mono_defaults.int16_class->byval_arg; enum_comparer = mono_class_load_from_name (mono_defaults.corlib, "System.Collections.Generic", "ShortEnumEqualityComparer`1"); add_instances_of (acfg, enum_comparer, insts, ninsts, FALSE); ninsts = 0; insts [ninsts ++] = &mono_defaults.sbyte_class->byval_arg; enum_comparer = mono_class_load_from_name (mono_defaults.corlib, "System.Collections.Generic", "SByteEnumEqualityComparer`1"); add_instances_of (acfg, enum_comparer, insts, ninsts, FALSE); enum_comparer = mono_class_load_from_name (mono_defaults.corlib, "System.Collections.Generic", "LongEnumEqualityComparer`1"); ninsts = 0; insts [ninsts ++] = &mono_defaults.int64_class->byval_arg; insts [ninsts ++] = &mono_defaults.uint64_class->byval_arg; add_instances_of (acfg, enum_comparer, insts, ninsts, FALSE); } /* Add instances of the array generic interfaces for primitive types */ /* This will add instances of the InternalArray_ helper methods in Array too */ klass = mono_class_try_load_from_name (acfg->image, "System.Collections.Generic", "ICollection`1"); if (klass) add_instances_of (acfg, klass, insts, ninsts, TRUE); klass = mono_class_try_load_from_name (acfg->image, "System.Collections.Generic", "IList`1"); if (klass) add_instances_of (acfg, klass, insts, ninsts, TRUE); klass = mono_class_try_load_from_name (acfg->image, "System.Collections.Generic", "IEnumerable`1"); if (klass) add_instances_of (acfg, klass, insts, ninsts, TRUE); /* * Add a managed-to-native wrapper of Array.GetGenericValueImpl, which is * used for all instances of GetGenericValueImpl by the AOT runtime. */ { MonoGenericContext ctx; MonoType *args [16]; MonoMethod *get_method; MonoClass *array_klass = mono_array_class_get (mono_defaults.object_class, 1)->parent; get_method = mono_class_get_method_from_name (array_klass, "GetGenericValueImpl", 2); if (get_method) { MonoError error; memset (&ctx, 0, sizeof (ctx)); args [0] = &mono_defaults.object_class->byval_arg; ctx.method_inst = mono_metadata_get_generic_inst (1, args); add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (get_method, &ctx, &error), TRUE, TRUE)); g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */ } } /* Same for CompareExchange/Exchange */ { MonoGenericContext ctx; MonoType *args [16]; MonoMethod *m; MonoClass *interlocked_klass = mono_class_load_from_name (mono_defaults.corlib, "System.Threading", "Interlocked"); gpointer iter = NULL; while ((m = mono_class_get_methods (interlocked_klass, &iter))) { if ((!strcmp (m->name, "CompareExchange") || !strcmp (m->name, "Exchange")) && m->is_generic) { MonoError error; memset (&ctx, 0, sizeof (ctx)); args [0] = &mono_defaults.object_class->byval_arg; ctx.method_inst = mono_metadata_get_generic_inst (1, args); add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE)); g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */ } } } /* Same for Volatile.Read/Write */ { MonoGenericContext ctx; MonoType *args [16]; MonoMethod *m; MonoClass *volatile_klass = mono_class_try_load_from_name (mono_defaults.corlib, "System.Threading", "Volatile"); gpointer iter = NULL; if (volatile_klass) { while ((m = mono_class_get_methods (volatile_klass, &iter))) { if ((!strcmp (m->name, "Read") || !strcmp (m->name, "Write")) && m->is_generic) { MonoError error; memset (&ctx, 0, sizeof (ctx)); args [0] = &mono_defaults.object_class->byval_arg; ctx.method_inst = mono_metadata_get_generic_inst (1, args); add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE)); g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */ } } } } /* object[] accessor wrappers. */ for (i = 1; i < 4; ++i) { MonoClass *obj_array_class = mono_array_class_get (mono_defaults.object_class, i); MonoMethod *m; m = mono_class_get_method_from_name (obj_array_class, "Get", i); g_assert (m); m = mono_marshal_get_array_accessor_wrapper (m); add_extra_method (acfg, m); m = mono_class_get_method_from_name (obj_array_class, "Address", i); g_assert (m); m = mono_marshal_get_array_accessor_wrapper (m); add_extra_method (acfg, m); m = mono_class_get_method_from_name (obj_array_class, "Set", i + 1); g_assert (m); m = mono_marshal_get_array_accessor_wrapper (m); add_extra_method (acfg, m); } } } /* * is_direct_callable: * * Return whenever the method identified by JI is directly callable without * going through the PLT. */ static gboolean is_direct_callable (MonoAotCompile *acfg, MonoMethod *method, MonoJumpInfo *patch_info) { if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) { MonoCompile *callee_cfg = (MonoCompile *)g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method); if (callee_cfg) { gboolean direct_callable = TRUE; if (direct_callable && !(!callee_cfg->has_got_slots && mono_class_is_before_field_init (callee_cfg->method->klass))) direct_callable = FALSE; if ((callee_cfg->method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) && (!method || method->wrapper_type != MONO_WRAPPER_SYNCHRONIZED)) // FIXME: Maybe call the wrapper directly ? direct_callable = FALSE; if (acfg->aot_opts.soft_debug || acfg->aot_opts.no_direct_calls) { /* Disable this so all calls go through load_method (), see the * mini_get_debug_options ()->load_aot_jit_info_eagerly = TRUE; line in * mono_debugger_agent_init (). */ direct_callable = FALSE; } if (callee_cfg->method->wrapper_type == MONO_WRAPPER_ALLOC) /* sgen does some initialization when the allocator method is created */ direct_callable = FALSE; if (callee_cfg->method->wrapper_type == MONO_WRAPPER_WRITE_BARRIER) /* we don't know at compile time whether sgen is concurrent or not */ direct_callable = FALSE; if (direct_callable) return TRUE; } } else if ((patch_info->type == MONO_PATCH_INFO_ICALL_ADDR_CALL && patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) { if (acfg->aot_opts.direct_pinvoke) return TRUE; } else if (patch_info->type == MONO_PATCH_INFO_ICALL_ADDR_CALL) { if (acfg->aot_opts.direct_icalls) return TRUE; return FALSE; } return FALSE; } #ifdef MONO_ARCH_AOT_SUPPORTED static const char * get_pinvoke_import (MonoAotCompile *acfg, MonoMethod *method) { MonoImage *image = method->klass->image; MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method; MonoTableInfo *tables = image->tables; MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP]; MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF]; guint32 im_cols [MONO_IMPLMAP_SIZE]; char *import; import = (char *)g_hash_table_lookup (acfg->method_to_pinvoke_import, method); if (import != NULL) return import; if (!piinfo->implmap_idx || piinfo->implmap_idx > im->rows) return NULL; mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE); if (!im_cols [MONO_IMPLMAP_SCOPE] || im_cols [MONO_IMPLMAP_SCOPE] > mr->rows) return NULL; import = g_strdup_printf ("%s", mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME])); g_hash_table_insert (acfg->method_to_pinvoke_import, method, import); return import; } #else static const char * get_pinvoke_import (MonoAotCompile *acfg, MonoMethod *method) { return NULL; } #endif static gint compare_lne (MonoDebugLineNumberEntry *a, MonoDebugLineNumberEntry *b) { if (a->native_offset == b->native_offset) return a->il_offset - b->il_offset; else return a->native_offset - b->native_offset; } /* * compute_line_numbers: * * Returns a sparse array of size CODE_SIZE containing MonoDebugSourceLocation* entries for the native offsets which have a corresponding line number * entry. */ static MonoDebugSourceLocation** compute_line_numbers (MonoMethod *method, int code_size, MonoDebugMethodJitInfo *debug_info) { MonoDebugMethodInfo *minfo; MonoDebugLineNumberEntry *ln_array; MonoDebugSourceLocation *loc; int i, prev_line, prev_il_offset; int *native_to_il_offset = NULL; MonoDebugSourceLocation **res; gboolean first; minfo = mono_debug_lookup_method (method); if (!minfo) return NULL; // FIXME: This seems to happen when two methods have the same cfg->method_to_register if (debug_info->code_size != code_size) return NULL; g_assert (code_size); /* Compute the native->IL offset mapping */ ln_array = g_new0 (MonoDebugLineNumberEntry, debug_info->num_line_numbers); memcpy (ln_array, debug_info->line_numbers, debug_info->num_line_numbers * sizeof (MonoDebugLineNumberEntry)); qsort (ln_array, debug_info->num_line_numbers, sizeof (MonoDebugLineNumberEntry), (int (*)(const void *, const void *))compare_lne); native_to_il_offset = g_new0 (int, code_size + 1); for (i = 0; i < debug_info->num_line_numbers; ++i) { int j; MonoDebugLineNumberEntry *lne = &ln_array [i]; if (i == 0) { for (j = 0; j < lne->native_offset; ++j) native_to_il_offset [j] = -1; } if (i < debug_info->num_line_numbers - 1) { MonoDebugLineNumberEntry *lne_next = &ln_array [i + 1]; for (j = lne->native_offset; j < lne_next->native_offset; ++j) native_to_il_offset [j] = lne->il_offset; } else { for (j = lne->native_offset; j < code_size; ++j) native_to_il_offset [j] = lne->il_offset; } } g_free (ln_array); /* Compute the native->line number mapping */ res = g_new0 (MonoDebugSourceLocation*, code_size); prev_il_offset = -1; prev_line = -1; first = TRUE; for (i = 0; i < code_size; ++i) { int il_offset = native_to_il_offset [i]; if (il_offset == -1 || il_offset == prev_il_offset) continue; prev_il_offset = il_offset; loc = mono_debug_method_lookup_location (minfo, il_offset); if (!(loc && loc->source_file)) continue; if (loc->row == prev_line) { mono_debug_free_source_location (loc); continue; } prev_line = loc->row; //printf ("D: %s:%d il=%x native=%x\n", loc->source_file, loc->row, il_offset, i); if (first) /* This will cover the prolog too */ res [0] = loc; else res [i] = loc; first = FALSE; } return res; } static int get_file_index (MonoAotCompile *acfg, const char *source_file) { int findex; // FIXME: Free these if (!acfg->dwarf_ln_filenames) acfg->dwarf_ln_filenames = g_hash_table_new (g_str_hash, g_str_equal); findex = GPOINTER_TO_INT (g_hash_table_lookup (acfg->dwarf_ln_filenames, source_file)); if (!findex) { findex = g_hash_table_size (acfg->dwarf_ln_filenames) + 1; g_hash_table_insert (acfg->dwarf_ln_filenames, g_strdup (source_file), GINT_TO_POINTER (findex)); emit_unset_mode (acfg); fprintf (acfg->fp, ".file %d \"%s\"\n", findex, mono_dwarf_escape_path (source_file)); } return findex; } #ifdef TARGET_ARM64 #define INST_LEN 4 #else #define INST_LEN 1 #endif /* * emit_and_reloc_code: * * Emit the native code in CODE, handling relocations along the way. If GOT_ONLY * is true, calls are made through the GOT too. This is used for emitting trampolines * in full-aot mode, since calls made from trampolines couldn't go through the PLT, * since trampolines are needed to make PTL work. */ static void emit_and_reloc_code (MonoAotCompile *acfg, MonoMethod *method, guint8 *code, guint32 code_len, MonoJumpInfo *relocs, gboolean got_only, MonoDebugMethodJitInfo *debug_info) { int i, pindex, start_index; GPtrArray *patches; MonoJumpInfo *patch_info; MonoDebugSourceLocation **locs = NULL; gboolean skip, prologue_end = FALSE; #ifdef MONO_ARCH_AOT_SUPPORTED gboolean direct_call, external_call; guint32 got_slot; const char *direct_call_target = 0; const char *direct_pinvoke; #endif if (acfg->gas_line_numbers && method && debug_info) { locs = compute_line_numbers (method, code_len, debug_info); if (!locs) { int findex = get_file_index (acfg, ""); emit_unset_mode (acfg); fprintf (acfg->fp, ".loc %d %d 0\n", findex, 1); } } /* Collect and sort relocations */ patches = g_ptr_array_new (); for (patch_info = relocs; patch_info; patch_info = patch_info->next) g_ptr_array_add (patches, patch_info); g_ptr_array_sort (patches, compare_patches); start_index = 0; for (i = 0; i < code_len; i += INST_LEN) { patch_info = NULL; for (pindex = start_index; pindex < patches->len; ++pindex) { patch_info = (MonoJumpInfo *)g_ptr_array_index (patches, pindex); if (patch_info->ip.i >= i) break; } if (locs && locs [i]) { MonoDebugSourceLocation *loc = locs [i]; int findex; const char *options; findex = get_file_index (acfg, loc->source_file); emit_unset_mode (acfg); if (!prologue_end) options = " prologue_end"; else options = ""; prologue_end = TRUE; fprintf (acfg->fp, ".loc %d %d 0%s\n", findex, loc->row, options); mono_debug_free_source_location (loc); } skip = FALSE; #ifdef MONO_ARCH_AOT_SUPPORTED if (patch_info && (patch_info->ip.i == i) && (pindex < patches->len)) { start_index = pindex; switch (patch_info->type) { case MONO_PATCH_INFO_NONE: break; case MONO_PATCH_INFO_GOT_OFFSET: { int code_size; arch_emit_got_offset (acfg, code + i, &code_size); i += code_size - INST_LEN; skip = TRUE; patch_info->type = MONO_PATCH_INFO_NONE; break; } case MONO_PATCH_INFO_OBJC_SELECTOR_REF: { int code_size, index; char *selector = (char *)patch_info->data.target; if (!acfg->objc_selector_to_index) acfg->objc_selector_to_index = g_hash_table_new (g_str_hash, g_str_equal); if (!acfg->objc_selectors) acfg->objc_selectors = g_ptr_array_new (); index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->objc_selector_to_index, selector)); if (index) index --; else { index = acfg->objc_selector_index; g_ptr_array_add (acfg->objc_selectors, (void*)patch_info->data.target); g_hash_table_insert (acfg->objc_selector_to_index, selector, GUINT_TO_POINTER (index + 1)); acfg->objc_selector_index ++; } arch_emit_objc_selector_ref (acfg, code + i, index, &code_size); i += code_size - INST_LEN; skip = TRUE; patch_info->type = MONO_PATCH_INFO_NONE; break; } default: { /* * If this patch is a call, try emitting a direct call instead of * through a PLT entry. This is possible if the called method is in * the same assembly and requires no initialization. */ direct_call = FALSE; external_call = FALSE; if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) { if (!got_only && is_direct_callable (acfg, method, patch_info)) { MonoCompile *callee_cfg = (MonoCompile *)g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method); //printf ("DIRECT: %s %s\n", method ? mono_method_full_name (method, TRUE) : "", mono_method_full_name (callee_cfg->method, TRUE)); direct_call = TRUE; direct_call_target = callee_cfg->asm_symbol; patch_info->type = MONO_PATCH_INFO_NONE; acfg->stats.direct_calls ++; } acfg->stats.all_calls ++; } else if (patch_info->type == MONO_PATCH_INFO_ICALL_ADDR_CALL) { if (!got_only && is_direct_callable (acfg, method, patch_info)) { if (!(patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) direct_pinvoke = mono_lookup_icall_symbol (patch_info->data.method); else direct_pinvoke = get_pinvoke_import (acfg, patch_info->data.method); if (direct_pinvoke) { direct_call = TRUE; g_assert (strlen (direct_pinvoke) < 1000); direct_call_target = g_strdup_printf ("%s%s", acfg->user_symbol_prefix, direct_pinvoke); } } } else if (patch_info->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) { const char *sym = mono_lookup_jit_icall_symbol (patch_info->data.name); if (!got_only && sym && acfg->aot_opts.direct_icalls) { /* Call to a C function implementing a jit icall */ direct_call = TRUE; external_call = TRUE; g_assert (strlen (sym) < 1000); direct_call_target = g_strdup_printf ("%s%s", acfg->user_symbol_prefix, sym); } } else if (patch_info->type == MONO_PATCH_INFO_INTERNAL_METHOD) { MonoJitICallInfo *info = mono_find_jit_icall_by_name (patch_info->data.name); const char *sym = mono_lookup_jit_icall_symbol (patch_info->data.name); if (!got_only && sym && acfg->aot_opts.direct_icalls && info->func == info->wrapper) { /* Call to a jit icall without a wrapper */ direct_call = TRUE; external_call = TRUE; g_assert (strlen (sym) < 1000); direct_call_target = g_strdup_printf ("%s%s", acfg->user_symbol_prefix, sym); } } if (direct_call) { patch_info->type = MONO_PATCH_INFO_NONE; acfg->stats.direct_calls ++; } if (!got_only && !direct_call) { MonoPltEntry *plt_entry = get_plt_entry (acfg, patch_info); if (plt_entry) { /* This patch has a PLT entry, so we must emit a call to the PLT entry */ direct_call = TRUE; direct_call_target = plt_entry->symbol; /* Nullify the patch */ patch_info->type = MONO_PATCH_INFO_NONE; plt_entry->jit_used = TRUE; } } if (direct_call) { int call_size; arch_emit_direct_call (acfg, direct_call_target, external_call, FALSE, patch_info, &call_size); i += call_size - INST_LEN; } else { int code_size; got_slot = get_got_offset (acfg, FALSE, patch_info); arch_emit_got_access (acfg, acfg->got_symbol, code + i, got_slot, &code_size); i += code_size - INST_LEN; } skip = TRUE; } } } #endif /* MONO_ARCH_AOT_SUPPORTED */ if (!skip) { /* Find next patch */ patch_info = NULL; for (pindex = start_index; pindex < patches->len; ++pindex) { patch_info = (MonoJumpInfo *)g_ptr_array_index (patches, pindex); if (patch_info->ip.i >= i) break; } /* Try to emit multiple bytes at once */ if (pindex < patches->len && patch_info->ip.i > i) { int limit; for (limit = i + INST_LEN; limit < patch_info->ip.i; limit += INST_LEN) { if (locs && locs [limit]) break; } emit_code_bytes (acfg, code + i, limit - i); i = limit - INST_LEN; } else { emit_code_bytes (acfg, code + i, INST_LEN); } } } g_ptr_array_free (patches, TRUE); g_free (locs); } /* * sanitize_symbol: * * Return a modified version of S which only includes characters permissible in symbols. */ static char* sanitize_symbol (MonoAotCompile *acfg, char *s) { gboolean process = FALSE; int i, len; GString *gs; char *res; if (!s) return s; len = strlen (s); for (i = 0; i < len; ++i) if (!(s [i] <= 0x7f && (isalnum (s [i]) || s [i] == '_'))) process = TRUE; if (!process) return s; gs = g_string_sized_new (len); for (i = 0; i < len; ++i) { guint8 c = s [i]; if (c <= 0x7f && (isalnum (c) || c == '_')) { g_string_append_c (gs, c); } else if (c > 0x7f) { /* multi-byte utf8 */ g_string_append_printf (gs, "_0x%x", c); i ++; c = s [i]; while (c >> 6 == 0x2) { g_string_append_printf (gs, "%x", c); i ++; c = s [i]; } g_string_append_printf (gs, "_"); i --; } else { g_string_append_c (gs, '_'); } } res = mono_mempool_strdup (acfg->mempool, gs->str); g_string_free (gs, TRUE); return res; } static char* get_debug_sym (MonoMethod *method, const char *prefix, GHashTable *cache) { char *name1, *name2, *cached; int i, j, len, count; MonoMethod *cached_method; name1 = mono_method_full_name (method, TRUE); #ifdef TARGET_MACH // This is so that we don't accidentally create a local symbol (which starts with 'L') if ((!prefix || !*prefix) && name1 [0] == 'L') prefix = "_"; #endif #if defined(TARGET_WIN32) && defined(TARGET_X86) char adjustedPrefix [MAX_SYMBOL_SIZE]; prefix = mangle_symbol (prefix, adjustedPrefix, G_N_ELEMENTS (adjustedPrefix)); #endif len = strlen (name1); name2 = (char *)malloc (strlen (prefix) + len + 16); memcpy (name2, prefix, strlen (prefix)); j = strlen (prefix); for (i = 0; i < len; ++i) { if (i == 0 && name1 [0] >= '0' && name1 [0] <= '9') { name2 [j ++] = '_'; } else if (isalnum (name1 [i])) { name2 [j ++] = name1 [i]; } else if (name1 [i] == ' ' && name1 [i + 1] == '(' && name1 [i + 2] == ')') { i += 2; } else if (name1 [i] == ',' && name1 [i + 1] == ' ') { name2 [j ++] = '_'; i++; } else if (name1 [i] == '(' || name1 [i] == ')' || name1 [i] == '>') { } else name2 [j ++] = '_'; } name2 [j] = '\0'; g_free (name1); count = 0; while (TRUE) { cached_method = (MonoMethod *)g_hash_table_lookup (cache, name2); if (!(cached_method && cached_method != method)) break; sprintf (name2 + j, "_%d", count); count ++; } cached = g_strdup (name2); g_hash_table_insert (cache, cached, method); return name2; } static void emit_method_code (MonoAotCompile *acfg, MonoCompile *cfg) { MonoMethod *method; int method_index; guint8 *code; char *debug_sym = NULL; char *symbol = NULL; int func_alignment = AOT_FUNC_ALIGNMENT; char *export_name; method = cfg->orig_method; code = cfg->native_code; method_index = get_method_index (acfg, method); symbol = g_strdup_printf ("%sme_%x", acfg->temp_prefix, method_index); /* Make the labels local */ emit_section_change (acfg, ".text", 0); emit_alignment_code (acfg, func_alignment); if (acfg->global_symbols && acfg->need_no_dead_strip) fprintf (acfg->fp, " .no_dead_strip %s\n", cfg->asm_symbol); emit_label (acfg, cfg->asm_symbol); if (acfg->aot_opts.write_symbols && !acfg->global_symbols && !acfg->llvm) { /* * Write a C style symbol for every method, this has two uses: * - it works on platforms where the dwarf debugging info is not * yet supported. * - it allows the setting of breakpoints of aot-ed methods. */ debug_sym = get_debug_sym (method, "", acfg->method_label_hash); cfg->asm_debug_symbol = g_strdup (debug_sym); if (acfg->need_no_dead_strip) fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym); emit_local_symbol (acfg, debug_sym, symbol, TRUE); emit_label (acfg, debug_sym); } export_name = (char *)g_hash_table_lookup (acfg->export_names, method); if (export_name) { /* Emit a global symbol for the method */ emit_global_inner (acfg, export_name, TRUE); emit_label (acfg, export_name); } if (cfg->verbose_level > 0) g_print ("Method %s emitted as %s\n", mono_method_get_full_name (method), cfg->asm_symbol); acfg->stats.code_size += cfg->code_len; acfg->cfgs [method_index]->got_offset = acfg->got_offset; emit_and_reloc_code (acfg, method, code, cfg->code_len, cfg->patch_info, FALSE, mono_debug_find_method (cfg->jit_info->d.method, mono_domain_get ())); emit_line (acfg); if (acfg->aot_opts.write_symbols) { if (debug_sym) emit_symbol_size (acfg, debug_sym, "."); else emit_symbol_size (acfg, cfg->asm_symbol, "."); g_free (debug_sym); } emit_label (acfg, symbol); g_free (symbol); } /** * encode_patch: * * Encode PATCH_INFO into its disk representation. */ static void encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info, guint8 *buf, guint8 **endbuf) { guint8 *p = buf; switch (patch_info->type) { case MONO_PATCH_INFO_NONE: break; case MONO_PATCH_INFO_IMAGE: encode_value (get_image_index (acfg, patch_info->data.image), p, &p); break; case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR: case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR: case MONO_PATCH_INFO_GC_NURSERY_START: case MONO_PATCH_INFO_GC_NURSERY_BITS: break; case MONO_PATCH_INFO_CASTCLASS_CACHE: encode_value (patch_info->data.index, p, &p); break; case MONO_PATCH_INFO_METHOD_REL: encode_value ((gint)patch_info->data.offset, p, &p); break; case MONO_PATCH_INFO_SWITCH: { gpointer *table = (gpointer *)patch_info->data.table->table; int k; encode_value (patch_info->data.table->table_size, p, &p); for (k = 0; k < patch_info->data.table->table_size; k++) encode_value ((int)(gssize)table [k], p, &p); break; } case MONO_PATCH_INFO_METHODCONST: case MONO_PATCH_INFO_METHOD: case MONO_PATCH_INFO_METHOD_JUMP: case MONO_PATCH_INFO_ICALL_ADDR: case MONO_PATCH_INFO_ICALL_ADDR_CALL: case MONO_PATCH_INFO_METHOD_RGCTX: case MONO_PATCH_INFO_METHOD_CODE_SLOT: encode_method_ref (acfg, patch_info->data.method, p, &p); break; case MONO_PATCH_INFO_AOT_JIT_INFO: case MONO_PATCH_INFO_GET_TLS_TRAMP: case MONO_PATCH_INFO_SET_TLS_TRAMP: encode_value (patch_info->data.index, p, &p); break; case MONO_PATCH_INFO_INTERNAL_METHOD: case MONO_PATCH_INFO_JIT_ICALL_ADDR: case MONO_PATCH_INFO_JIT_ICALL_ADDR_NOCALL: { guint32 len = strlen (patch_info->data.name); encode_value (len, p, &p); memcpy (p, patch_info->data.name, len); p += len; *p++ = '\0'; break; } case MONO_PATCH_INFO_LDSTR: { guint32 image_index = get_image_index (acfg, patch_info->data.token->image); guint32 token = patch_info->data.token->token; g_assert (mono_metadata_token_code (token) == MONO_TOKEN_STRING); encode_value (image_index, p, &p); encode_value (patch_info->data.token->token - MONO_TOKEN_STRING, p, &p); break; } case MONO_PATCH_INFO_RVA: case MONO_PATCH_INFO_DECLSEC: case MONO_PATCH_INFO_LDTOKEN: case MONO_PATCH_INFO_TYPE_FROM_HANDLE: encode_value (get_image_index (acfg, patch_info->data.token->image), p, &p); encode_value (patch_info->data.token->token, p, &p); encode_value (patch_info->data.token->has_context, p, &p); if (patch_info->data.token->has_context) encode_generic_context (acfg, &patch_info->data.token->context, p, &p); break; case MONO_PATCH_INFO_EXC_NAME: { MonoClass *ex_class; ex_class = mono_class_load_from_name (mono_defaults.exception_class->image, "System", (const char *)patch_info->data.target); encode_klass_ref (acfg, ex_class, p, &p); break; } case MONO_PATCH_INFO_R4: encode_value (*((guint32 *)patch_info->data.target), p, &p); break; case MONO_PATCH_INFO_R8: encode_value (((guint32 *)patch_info->data.target) [MINI_LS_WORD_IDX], p, &p); encode_value (((guint32 *)patch_info->data.target) [MINI_MS_WORD_IDX], p, &p); break; case MONO_PATCH_INFO_VTABLE: case MONO_PATCH_INFO_CLASS: case MONO_PATCH_INFO_IID: case MONO_PATCH_INFO_ADJUSTED_IID: encode_klass_ref (acfg, patch_info->data.klass, p, &p); break; case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE: encode_klass_ref (acfg, patch_info->data.del_tramp->klass, p, &p); if (patch_info->data.del_tramp->method) { encode_value (1, p, &p); encode_method_ref (acfg, patch_info->data.del_tramp->method, p, &p); } else { encode_value (0, p, &p); } encode_value (patch_info->data.del_tramp->is_virtual, p, &p); break; case MONO_PATCH_INFO_FIELD: case MONO_PATCH_INFO_SFLDA: encode_field_info (acfg, patch_info->data.field, p, &p); break; case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG: break; case MONO_PATCH_INFO_PROFILER_ALLOCATION_COUNT: break; case MONO_PATCH_INFO_RGCTX_FETCH: case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: { MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry; guint32 offset; guint8 *buf2, *p2; /* * entry->method has a lenghtly encoding and multiple rgctx_fetch entries * reference the same method, so encode the method only once. */ offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_blob_hash, entry->method)); if (!offset) { buf2 = (guint8 *)g_malloc (1024); p2 = buf2; encode_method_ref (acfg, entry->method, p2, &p2); g_assert (p2 - buf2 < 1024); offset = add_to_blob (acfg, buf2, p2 - buf2); g_free (buf2); g_hash_table_insert (acfg->method_blob_hash, entry->method, GUINT_TO_POINTER (offset + 1)); } else { offset --; } encode_value (offset, p, &p); g_assert ((int)entry->info_type < 256); g_assert (entry->data->type < 256); encode_value ((entry->in_mrgctx ? 1 : 0) | (entry->info_type << 1) | (entry->data->type << 9), p, &p); encode_patch (acfg, entry->data, p, &p); break; } case MONO_PATCH_INFO_SEQ_POINT_INFO: case MONO_PATCH_INFO_AOT_MODULE: break; case MONO_PATCH_INFO_SIGNATURE: case MONO_PATCH_INFO_GSHAREDVT_IN_WRAPPER: encode_signature (acfg, (MonoMethodSignature*)patch_info->data.target, p, &p); break; case MONO_PATCH_INFO_GSHAREDVT_CALL: encode_signature (acfg, (MonoMethodSignature*)patch_info->data.gsharedvt->sig, p, &p); encode_method_ref (acfg, patch_info->data.gsharedvt->method, p, &p); break; case MONO_PATCH_INFO_GSHAREDVT_METHOD: { MonoGSharedVtMethodInfo *info = patch_info->data.gsharedvt_method; int i; encode_method_ref (acfg, info->method, p, &p); encode_value (info->num_entries, p, &p); for (i = 0; i < info->num_entries; ++i) { MonoRuntimeGenericContextInfoTemplate *template_ = &info->entries [i]; encode_value (template_->info_type, p, &p); switch (mini_rgctx_info_type_to_patch_info_type (template_->info_type)) { case MONO_PATCH_INFO_CLASS: encode_klass_ref (acfg, mono_class_from_mono_type ((MonoType *)template_->data), p, &p); break; case MONO_PATCH_INFO_FIELD: encode_field_info (acfg, (MonoClassField *)template_->data, p, &p); break; default: g_assert_not_reached (); break; } } break; } case MONO_PATCH_INFO_LDSTR_LIT: { const char *s = (const char *)patch_info->data.target; int len = strlen (s); encode_value (len, p, &p); memcpy (p, s, len + 1); p += len + 1; break; } case MONO_PATCH_INFO_VIRT_METHOD: encode_klass_ref (acfg, patch_info->data.virt_method->klass, p, &p); encode_method_ref (acfg, patch_info->data.virt_method->method, p, &p); break; case MONO_PATCH_INFO_GC_SAFE_POINT_FLAG: case MONO_PATCH_INFO_JIT_THREAD_ATTACH: break; default: g_warning ("unable to handle jump info %d", patch_info->type); g_assert_not_reached (); } *endbuf = p; } static void encode_patch_list (MonoAotCompile *acfg, GPtrArray *patches, int n_patches, gboolean llvm, int first_got_offset, guint8 *buf, guint8 **endbuf) { guint8 *p = buf; guint32 pindex, offset; MonoJumpInfo *patch_info; encode_value (n_patches, p, &p); for (pindex = 0; pindex < patches->len; ++pindex) { patch_info = (MonoJumpInfo *)g_ptr_array_index (patches, pindex); if (patch_info->type == MONO_PATCH_INFO_NONE || patch_info->type == MONO_PATCH_INFO_BB) /* Nothing to do */ continue; offset = get_got_offset (acfg, llvm, patch_info); encode_value (offset, p, &p); } *endbuf = p; } static void emit_method_info (MonoAotCompile *acfg, MonoCompile *cfg) { MonoMethod *method; int pindex, buf_size, n_patches; GPtrArray *patches; MonoJumpInfo *patch_info; guint32 method_index; guint8 *p, *buf; guint32 first_got_offset; method = cfg->orig_method; method_index = get_method_index (acfg, method); /* Sort relocations */ patches = g_ptr_array_new (); for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) g_ptr_array_add (patches, patch_info); g_ptr_array_sort (patches, compare_patches); first_got_offset = acfg->cfgs [method_index]->got_offset; /**********************/ /* Encode method info */ /**********************/ buf_size = (patches->len < 1000) ? 40960 : 40960 + (patches->len * 64); p = buf = (guint8 *)g_malloc (buf_size); if (mono_class_get_cctor (method->klass)) { encode_value (1, p, &p); encode_klass_ref (acfg, method->klass, p, &p); } else { /* Not needed when loading the method */ encode_value (0, p, &p); } g_assert (!(cfg->opt & MONO_OPT_SHARED)); n_patches = 0; for (pindex = 0; pindex < patches->len; ++pindex) { patch_info = (MonoJumpInfo *)g_ptr_array_index (patches, pindex); if ((patch_info->type == MONO_PATCH_INFO_GOT_OFFSET) || (patch_info->type == MONO_PATCH_INFO_NONE)) { patch_info->type = MONO_PATCH_INFO_NONE; /* Nothing to do */ continue; } if ((patch_info->type == MONO_PATCH_INFO_IMAGE) && (patch_info->data.image == acfg->image)) { /* Stored in a GOT slot initialized at module load time */ patch_info->type = MONO_PATCH_INFO_NONE; continue; } if (patch_info->type == MONO_PATCH_INFO_GC_CARD_TABLE_ADDR || patch_info->type == MONO_PATCH_INFO_GC_NURSERY_START || patch_info->type == MONO_PATCH_INFO_GC_NURSERY_BITS || patch_info->type == MONO_PATCH_INFO_AOT_MODULE) { /* Stored in a GOT slot initialized at module load time */ patch_info->type = MONO_PATCH_INFO_NONE; continue; } if (is_plt_patch (patch_info) && !(cfg->compile_llvm && acfg->aot_opts.llvm_only)) { /* Calls are made through the PLT */ patch_info->type = MONO_PATCH_INFO_NONE; continue; } n_patches ++; } if (n_patches) g_assert (cfg->has_got_slots); encode_patch_list (acfg, patches, n_patches, cfg->compile_llvm, first_got_offset, p, &p); g_ptr_array_free (patches, TRUE); acfg->stats.info_size += p - buf; g_assert (p - buf < buf_size); cfg->method_info_offset = add_to_blob (acfg, buf, p - buf); g_free (buf); } static guint32 get_unwind_info_offset (MonoAotCompile *acfg, guint8 *encoded, guint32 encoded_len) { guint32 cache_index; guint32 offset; /* Reuse the unwind module to canonize and store unwind info entries */ cache_index = mono_cache_unwind_info (encoded, encoded_len); /* Use +/- 1 to distinguish 0s from missing entries */ offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1))); if (offset) return offset - 1; else { guint8 buf [16]; guint8 *p; /* * It would be easier to use assembler symbols, but the caller needs an * offset now. */ offset = acfg->unwind_info_offset; g_hash_table_insert (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1), GUINT_TO_POINTER (offset + 1)); g_ptr_array_add (acfg->unwind_ops, GUINT_TO_POINTER (cache_index)); p = buf; encode_value (encoded_len, p, &p); acfg->unwind_info_offset += encoded_len + (p - buf); return offset; } } static void emit_exception_debug_info (MonoAotCompile *acfg, MonoCompile *cfg, gboolean store_seq_points) { int i, k, buf_size; guint32 debug_info_size, seq_points_size; guint8 *code; MonoMethodHeader *header; guint8 *p, *buf, *debug_info; MonoJitInfo *jinfo = cfg->jit_info; guint32 flags; gboolean use_unwind_ops = FALSE; MonoSeqPointInfo *seq_points; code = cfg->native_code; header = cfg->header; if (!acfg->aot_opts.nodebug) { mono_debug_serialize_debug_info (cfg, &debug_info, &debug_info_size); } else { debug_info = NULL; debug_info_size = 0; } seq_points = cfg->seq_point_info; seq_points_size = (store_seq_points)? mono_seq_point_info_get_write_size (seq_points) : 0; buf_size = header->num_clauses * 256 + debug_info_size + 2048 + seq_points_size + cfg->gc_map_size; p = buf = (guint8 *)g_malloc (buf_size); use_unwind_ops = cfg->unwind_ops != NULL; flags = (jinfo->has_generic_jit_info ? 1 : 0) | (use_unwind_ops ? 2 : 0) | (header->num_clauses ? 4 : 0) | (seq_points_size ? 8 : 0) | (cfg->compile_llvm ? 16 : 0) | (jinfo->has_try_block_holes ? 32 : 0) | (cfg->gc_map ? 64 : 0) | (jinfo->has_arch_eh_info ? 128 : 0); encode_value (flags, p, &p); if (use_unwind_ops) { guint32 encoded_len; guint8 *encoded; guint32 unwind_desc; encoded = mono_unwind_ops_encode (cfg->unwind_ops, &encoded_len); unwind_desc = get_unwind_info_offset (acfg, encoded, encoded_len); encode_value (unwind_desc, p, &p); g_free (encoded); } else { encode_value (jinfo->unwind_info, p, &p); } /*Encode the number of holes before the number of clauses to make decoding easier*/ if (jinfo->has_try_block_holes) { MonoTryBlockHoleTableJitInfo *table = mono_jit_info_get_try_block_hole_table_info (jinfo); encode_value (table->num_holes, p, &p); } if (jinfo->has_arch_eh_info) { /* * In AOT mode, the code length is calculated from the address of the previous method, * which could include alignment padding, so calculating the start of the epilog as * code_len - epilog_size is correct any more. Save the real code len as a workaround. */ encode_value (jinfo->code_size, p, &p); } /* Exception table */ if (cfg->compile_llvm) { /* * When using LLVM, we can't emit some data, like pc offsets, this reg/offset etc., * since the information is only available to llc. Instead, we let llc save the data * into the LSDA, and read it from there at runtime. */ /* The assembly might be CIL stripped so emit the data ourselves */ if (header->num_clauses) encode_value (header->num_clauses, p, &p); for (k = 0; k < header->num_clauses; ++k) { MonoExceptionClause *clause; clause = &header->clauses [k]; encode_value (clause->flags, p, &p); if (!(clause->flags == MONO_EXCEPTION_CLAUSE_FILTER || clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY)) { if (clause->data.catch_class) { guint8 *buf2, *p2; int len; buf2 = (guint8 *)g_malloc (4096); p2 = buf2; encode_klass_ref (acfg, clause->data.catch_class, p2, &p2); len = p2 - buf2; g_assert (len < 4096); encode_value (len, p, &p); memcpy (p, buf2, len); p += p2 - buf2; g_free (buf2); } else { encode_value (0, p, &p); } } /* Emit the IL ranges too, since they might not be available at runtime */ encode_value (clause->try_offset, p, &p); encode_value (clause->try_len, p, &p); encode_value (clause->handler_offset, p, &p); encode_value (clause->handler_len, p, &p); /* Emit a list of nesting clauses */ for (i = 0; i < header->num_clauses; ++i) { gint32 cindex1 = k; MonoExceptionClause *clause1 = &header->clauses [cindex1]; gint32 cindex2 = i; MonoExceptionClause *clause2 = &header->clauses [cindex2]; if (cindex1 != cindex2 && clause1->try_offset >= clause2->try_offset && clause1->handler_offset <= clause2->handler_offset) encode_value (i, p, &p); } encode_value (-1, p, &p); } } else { if (jinfo->num_clauses) encode_value (jinfo->num_clauses, p, &p); for (k = 0; k < jinfo->num_clauses; ++k) { MonoJitExceptionInfo *ei = &jinfo->clauses [k]; encode_value (ei->flags, p, &p); #ifdef MONO_CONTEXT_SET_LLVM_EXC_REG /* Not used for catch clauses */ if (ei->flags != MONO_EXCEPTION_CLAUSE_NONE) encode_value (ei->exvar_offset, p, &p); #else encode_value (ei->exvar_offset, p, &p); #endif if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY) encode_value ((gint)((guint8*)ei->data.filter - code), p, &p); else { if (ei->data.catch_class) { guint8 *buf2, *p2; int len; buf2 = (guint8 *)g_malloc (4096); p2 = buf2; encode_klass_ref (acfg, ei->data.catch_class, p2, &p2); len = p2 - buf2; g_assert (len < 4096); encode_value (len, p, &p); memcpy (p, buf2, len); p += p2 - buf2; g_free (buf2); } else { encode_value (0, p, &p); } } encode_value ((gint)((guint8*)ei->try_start - code), p, &p); encode_value ((gint)((guint8*)ei->try_end - code), p, &p); encode_value ((gint)((guint8*)ei->handler_start - code), p, &p); } } if (jinfo->has_try_block_holes) { MonoTryBlockHoleTableJitInfo *table = mono_jit_info_get_try_block_hole_table_info (jinfo); for (i = 0; i < table->num_holes; ++i) { MonoTryBlockHoleJitInfo *hole = &table->holes [i]; encode_value (hole->clause, p, &p); encode_value (hole->length, p, &p); encode_value (hole->offset, p, &p); } } if (jinfo->has_arch_eh_info) { MonoArchEHJitInfo *eh_info; eh_info = mono_jit_info_get_arch_eh_info (jinfo); encode_value (eh_info->stack_size, p, &p); encode_value (eh_info->epilog_size, p, &p); } if (jinfo->has_generic_jit_info) { MonoGenericJitInfo *gi = mono_jit_info_get_generic_jit_info (jinfo); MonoGenericSharingContext* gsctx = gi->generic_sharing_context; guint8 *buf2, *p2; int len; encode_value (gi->nlocs, p, &p); if (gi->nlocs) { for (i = 0; i < gi->nlocs; ++i) { MonoDwarfLocListEntry *entry = &gi->locations [i]; encode_value (entry->is_reg ? 1 : 0, p, &p); encode_value (entry->reg, p, &p); if (!entry->is_reg) encode_value (entry->offset, p, &p); if (i == 0) g_assert (entry->from == 0); else encode_value (entry->from, p, &p); encode_value (entry->to, p, &p); } } else { if (!cfg->compile_llvm) { encode_value (gi->has_this ? 1 : 0, p, &p); encode_value (gi->this_reg, p, &p); encode_value (gi->this_offset, p, &p); } } /* * Need to encode jinfo->method too, since it is not equal to 'method' * when using generic sharing. */ buf2 = (guint8 *)g_malloc (4096); p2 = buf2; encode_method_ref (acfg, jinfo->d.method, p2, &p2); len = p2 - buf2; g_assert (len < 4096); encode_value (len, p, &p); memcpy (p, buf2, len); p += p2 - buf2; g_free (buf2); if (gsctx && gsctx->is_gsharedvt) { encode_value (1, p, &p); } else { encode_value (0, p, &p); } } if (seq_points_size) p += mono_seq_point_info_write (seq_points, p); g_assert (debug_info_size < buf_size); encode_value (debug_info_size, p, &p); if (debug_info_size) { memcpy (p, debug_info, debug_info_size); p += debug_info_size; g_free (debug_info); } /* GC Map */ if (cfg->gc_map) { encode_value (cfg->gc_map_size, p, &p); /* The GC map requires 4 bytes of alignment */ while ((gsize)p % 4) p ++; memcpy (p, cfg->gc_map, cfg->gc_map_size); p += cfg->gc_map_size; } acfg->stats.ex_info_size += p - buf; g_assert (p - buf < buf_size); /* Emit info */ /* The GC Map requires 4 byte alignment */ cfg->ex_info_offset = add_to_blob_aligned (acfg, buf, p - buf, cfg->gc_map ? 4 : 1); g_free (buf); } static guint32 emit_klass_info (MonoAotCompile *acfg, guint32 token) { MonoError error; MonoClass *klass = mono_class_get_checked (acfg->image, token, &error); guint8 *p, *buf; int i, buf_size, res; gboolean no_special_static, cant_encode; gpointer iter = NULL; if (!klass) { mono_error_cleanup (&error); buf_size = 16; p = buf = (guint8 *)g_malloc (buf_size); /* Mark as unusable */ encode_value (-1, p, &p); res = add_to_blob (acfg, buf, p - buf); g_free (buf); return res; } buf_size = 10240 + (klass->vtable_size * 16); p = buf = (guint8 *)g_malloc (buf_size); g_assert (klass); mono_class_init (klass); mono_class_get_nested_types (klass, &iter); g_assert (klass->nested_classes_inited); mono_class_setup_vtable (klass); /* * Emit all the information which is required for creating vtables so * the runtime does not need to create the MonoMethod structures which * take up a lot of space. */ no_special_static = !mono_class_has_special_static_fields (klass); /* Check whenever we have enough info to encode the vtable */ cant_encode = FALSE; for (i = 0; i < klass->vtable_size; ++i) { MonoMethod *cm = klass->vtable [i]; if (cm && mono_method_signature (cm)->is_inflated && !g_hash_table_lookup (acfg->token_info_hash, cm)) cant_encode = TRUE; } mono_class_has_finalizer (klass); if (mono_class_has_failure (klass)) cant_encode = TRUE; if (mono_class_is_gtd (klass) || cant_encode) { encode_value (-1, p, &p); } else { gboolean has_nested = mono_class_get_nested_classes_property (klass) != NULL; encode_value (klass->vtable_size, p, &p); encode_value ((mono_class_is_gtd (klass) ? (1 << 8) : 0) | (no_special_static << 7) | (klass->has_static_refs << 6) | (klass->has_references << 5) | ((klass->blittable << 4) | (has_nested ? 1 : 0) << 3) | (klass->has_cctor << 2) | (klass->has_finalize << 1) | klass->ghcimpl, p, &p); if (klass->has_cctor) encode_method_ref (acfg, mono_class_get_cctor (klass), p, &p); if (klass->has_finalize) encode_method_ref (acfg, mono_class_get_finalizer (klass), p, &p); encode_value (klass->instance_size, p, &p); encode_value (mono_class_data_size (klass), p, &p); encode_value (klass->packing_size, p, &p); encode_value (klass->min_align, p, &p); for (i = 0; i < klass->vtable_size; ++i) { MonoMethod *cm = klass->vtable [i]; if (cm) encode_method_ref (acfg, cm, p, &p); else encode_value (0, p, &p); } } acfg->stats.class_info_size += p - buf; g_assert (p - buf < buf_size); res = add_to_blob (acfg, buf, p - buf); g_free (buf); return res; } static char* get_plt_entry_debug_sym (MonoAotCompile *acfg, MonoJumpInfo *ji, GHashTable *cache) { char *debug_sym = NULL; char *prefix; if (acfg->llvm && llvm_acfg->aot_opts.static_link) { /* Need to add a prefix to create unique symbols */ prefix = g_strdup_printf ("plt_%s_", acfg->assembly_name_sym); } else { #if defined(TARGET_WIN32) && defined(TARGET_X86) prefix = mangle_symbol_alloc ("plt_"); #else prefix = g_strdup ("plt_"); #endif } switch (ji->type) { case MONO_PATCH_INFO_METHOD: debug_sym = get_debug_sym (ji->data.method, prefix, cache); break; case MONO_PATCH_INFO_INTERNAL_METHOD: debug_sym = g_strdup_printf ("%s_jit_icall_%s", prefix, ji->data.name); break; case MONO_PATCH_INFO_RGCTX_FETCH: debug_sym = g_strdup_printf ("%s_rgctx_fetch_%d", prefix, acfg->label_generator ++); break; case MONO_PATCH_INFO_ICALL_ADDR: case MONO_PATCH_INFO_ICALL_ADDR_CALL: { char *s = get_debug_sym (ji->data.method, "", cache); debug_sym = g_strdup_printf ("%s_icall_native_%s", prefix, s); g_free (s); break; } case MONO_PATCH_INFO_JIT_ICALL_ADDR: debug_sym = g_strdup_printf ("%s_jit_icall_native_%s", prefix, ji->data.name); break; default: break; } g_free (prefix); return sanitize_symbol (acfg, debug_sym); } /* * Calls made from AOTed code are routed through a table of jumps similar to the * ELF PLT (Program Linkage Table). Initially the PLT entries jump to code which transfers * control to the AOT runtime through a trampoline. */ static void emit_plt (MonoAotCompile *acfg) { int i; if (acfg->aot_opts.llvm_only) { g_assert (acfg->plt_offset == 1); return; } emit_line (acfg); emit_section_change (acfg, ".text", 0); emit_alignment_code (acfg, 16); emit_info_symbol (acfg, "plt"); emit_label (acfg, acfg->plt_symbol); for (i = 0; i < acfg->plt_offset; ++i) { char *debug_sym = NULL; MonoPltEntry *plt_entry = NULL; if (i == 0) /* * The first plt entry is unused. */ continue; plt_entry = (MonoPltEntry *)g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i)); debug_sym = plt_entry->debug_sym; if (acfg->thumb_mixed && !plt_entry->jit_used) /* Emit only a thumb version */ continue; /* Skip plt entries not actually called */ if (!plt_entry->jit_used && !plt_entry->llvm_used) continue; if (acfg->llvm && !acfg->thumb_mixed) { emit_label (acfg, plt_entry->llvm_symbol); if (acfg->llvm) { emit_global_inner (acfg, plt_entry->llvm_symbol, TRUE); #if defined(TARGET_MACH) fprintf (acfg->fp, ".private_extern %s\n", plt_entry->llvm_symbol); #endif } } if (debug_sym) { if (acfg->need_no_dead_strip) { emit_unset_mode (acfg); fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym); } emit_local_symbol (acfg, debug_sym, NULL, TRUE); emit_label (acfg, debug_sym); } emit_label (acfg, plt_entry->symbol); arch_emit_plt_entry (acfg, acfg->got_symbol, (acfg->plt_got_offset_base + i) * sizeof (gpointer), acfg->plt_got_info_offsets [i]); if (debug_sym) emit_symbol_size (acfg, debug_sym, "."); } if (acfg->thumb_mixed) { /* Make sure the ARM symbols don't alias the thumb ones */ emit_zero_bytes (acfg, 16); /* * Emit a separate set of PLT entries using thumb2 which is called by LLVM generated * code. */ for (i = 0; i < acfg->plt_offset; ++i) { char *debug_sym = NULL; MonoPltEntry *plt_entry = NULL; if (i == 0) continue; plt_entry = (MonoPltEntry *)g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i)); /* Skip plt entries not actually called by LLVM code */ if (!plt_entry->llvm_used) continue; if (acfg->aot_opts.write_symbols) { if (plt_entry->debug_sym) debug_sym = g_strdup_printf ("%s_thumb", plt_entry->debug_sym); } if (debug_sym) { #if defined(TARGET_MACH) fprintf (acfg->fp, " .thumb_func %s\n", debug_sym); fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym); #endif emit_local_symbol (acfg, debug_sym, NULL, TRUE); emit_label (acfg, debug_sym); } fprintf (acfg->fp, "\n.thumb_func\n"); emit_label (acfg, plt_entry->llvm_symbol); if (acfg->llvm) emit_global_inner (acfg, plt_entry->llvm_symbol, TRUE); arch_emit_llvm_plt_entry (acfg, acfg->got_symbol, (acfg->plt_got_offset_base + i) * sizeof (gpointer), acfg->plt_got_info_offsets [i]); if (debug_sym) { emit_symbol_size (acfg, debug_sym, "."); g_free (debug_sym); } } } emit_symbol_size (acfg, acfg->plt_symbol, "."); emit_info_symbol (acfg, "plt_end"); } /* * emit_trampoline_full: * * If EMIT_TINFO is TRUE, emit additional information which can be used to create a MonoJitInfo for this trampoline by * create_jit_info_for_trampoline (). */ static G_GNUC_UNUSED void emit_trampoline_full (MonoAotCompile *acfg, int got_offset, MonoTrampInfo *info, gboolean emit_tinfo) { char start_symbol [MAX_SYMBOL_SIZE]; char end_symbol [MAX_SYMBOL_SIZE]; char symbol [MAX_SYMBOL_SIZE]; guint32 buf_size, info_offset; MonoJumpInfo *patch_info; guint8 *buf, *p; GPtrArray *patches; char *name; guint8 *code; guint32 code_size; MonoJumpInfo *ji; GSList *unwind_ops; g_assert (info); name = info->name; code = info->code; code_size = info->code_size; ji = info->ji; unwind_ops = info->unwind_ops; /* Emit code */ sprintf (start_symbol, "%s%s", acfg->user_symbol_prefix, name); emit_section_change (acfg, ".text", 0); emit_global (acfg, start_symbol, TRUE); emit_alignment_code (acfg, AOT_FUNC_ALIGNMENT); emit_label (acfg, start_symbol); sprintf (symbol, "%snamed_%s", acfg->temp_prefix, name); emit_label (acfg, symbol); /* * The code should access everything through the GOT, so we pass * TRUE here. */ emit_and_reloc_code (acfg, NULL, code, code_size, ji, TRUE, NULL); emit_symbol_size (acfg, start_symbol, "."); if (emit_tinfo) { sprintf (end_symbol, "%snamede_%s", acfg->temp_prefix, name); emit_label (acfg, end_symbol); } /* Emit info */ /* Sort relocations */ patches = g_ptr_array_new (); for (patch_info = ji; patch_info; patch_info = patch_info->next) if (patch_info->type != MONO_PATCH_INFO_NONE) g_ptr_array_add (patches, patch_info); g_ptr_array_sort (patches, compare_patches); buf_size = patches->len * 128 + 128; buf = (guint8 *)g_malloc (buf_size); p = buf; encode_patch_list (acfg, patches, patches->len, FALSE, got_offset, p, &p); g_assert (p - buf < buf_size); g_ptr_array_free (patches, TRUE); sprintf (symbol, "%s%s_p", acfg->user_symbol_prefix, name); info_offset = add_to_blob (acfg, buf, p - buf); emit_section_change (acfg, RODATA_SECT, 0); emit_global (acfg, symbol, FALSE); emit_label (acfg, symbol); emit_int32 (acfg, info_offset); if (emit_tinfo) { guint8 *encoded; guint32 encoded_len; guint32 uw_offset; /* * Emit additional information which can be used to reconstruct a partial MonoTrampInfo. */ encoded = mono_unwind_ops_encode (info->unwind_ops, &encoded_len); uw_offset = get_unwind_info_offset (acfg, encoded, encoded_len); g_free (encoded); emit_symbol_diff (acfg, end_symbol, start_symbol, 0); emit_int32 (acfg, uw_offset); } /* Emit debug info */ if (unwind_ops) { char symbol2 [MAX_SYMBOL_SIZE]; sprintf (symbol, "%s", name); sprintf (symbol2, "%snamed_%s", acfg->temp_prefix, name); if (acfg->dwarf) mono_dwarf_writer_emit_trampoline (acfg->dwarf, symbol, symbol2, NULL, NULL, code_size, unwind_ops); } g_free (buf); } static G_GNUC_UNUSED void emit_trampoline (MonoAotCompile *acfg, int got_offset, MonoTrampInfo *info) { emit_trampoline_full (acfg, got_offset, info, TRUE); } static void emit_trampolines (MonoAotCompile *acfg) { char symbol [MAX_SYMBOL_SIZE]; char end_symbol [MAX_SYMBOL_SIZE]; int i, tramp_got_offset; int ntype; #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES int tramp_type; #endif if (!mono_aot_mode_is_full (&acfg->aot_opts) || acfg->aot_opts.llvm_only) return; g_assert (acfg->image->assembly); /* Currently, we emit most trampolines into the mscorlib AOT image. */ if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) { #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES MonoTrampInfo *info; /* * Emit the generic trampolines. * * We could save some code by treating the generic trampolines as a wrapper * method, but that approach has its own complexities, so we choose the simpler * method. */ for (tramp_type = 0; tramp_type < MONO_TRAMPOLINE_NUM; ++tramp_type) { /* we overload the boolean here to indicate the slightly different trampoline needed, see mono_arch_create_generic_trampoline() */ #ifdef DISABLE_REMOTING if (tramp_type == MONO_TRAMPOLINE_GENERIC_VIRTUAL_REMOTING) continue; #endif mono_arch_create_generic_trampoline ((MonoTrampolineType)tramp_type, &info, acfg->aot_opts.use_trampolines_page? 2: TRUE); emit_trampoline (acfg, acfg->got_offset, info); } /* Emit the exception related code pieces */ mono_arch_get_restore_context (&info, TRUE); emit_trampoline (acfg, acfg->got_offset, info); mono_arch_get_call_filter (&info, TRUE); emit_trampoline (acfg, acfg->got_offset, info); mono_arch_get_throw_exception (&info, TRUE); emit_trampoline (acfg, acfg->got_offset, info); mono_arch_get_rethrow_exception (&info, TRUE); emit_trampoline (acfg, acfg->got_offset, info); mono_arch_get_throw_corlib_exception (&info, TRUE); emit_trampoline (acfg, acfg->got_offset, info); #ifdef MONO_ARCH_HAVE_SDB_TRAMPOLINES mono_arch_create_sdb_trampoline (TRUE, &info, TRUE); emit_trampoline (acfg, acfg->got_offset, info); mono_arch_create_sdb_trampoline (FALSE, &info, TRUE); emit_trampoline (acfg, acfg->got_offset, info); #endif #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED mono_arch_get_gsharedvt_trampoline (&info, TRUE); if (info) { emit_trampoline_full (acfg, acfg->got_offset, info, TRUE); /* Create a separate out trampoline for more information in stack traces */ info->name = g_strdup ("gsharedvt_out_trampoline"); emit_trampoline_full (acfg, acfg->got_offset, info, TRUE); } #endif #if defined(MONO_ARCH_HAVE_GET_TRAMPOLINES) { GSList *l = mono_arch_get_trampolines (TRUE); while (l) { MonoTrampInfo *info = (MonoTrampInfo *)l->data; emit_trampoline (acfg, acfg->got_offset, info); l = l->next; } } #endif for (i = 0; i < acfg->aot_opts.nrgctx_fetch_trampolines; ++i) { int offset; offset = MONO_RGCTX_SLOT_MAKE_RGCTX (i); mono_arch_create_rgctx_lazy_fetch_trampoline (offset, &info, TRUE); emit_trampoline (acfg, acfg->got_offset, info); g_free (info); offset = MONO_RGCTX_SLOT_MAKE_MRGCTX (i); mono_arch_create_rgctx_lazy_fetch_trampoline (offset, &info, TRUE); emit_trampoline (acfg, acfg->got_offset, info); g_free (info); } #ifdef MONO_ARCH_HAVE_GENERAL_RGCTX_LAZY_FETCH_TRAMPOLINE mono_arch_create_general_rgctx_lazy_fetch_trampoline (&info, TRUE); emit_trampoline (acfg, acfg->got_offset, info); #endif { GSList *l; /* delegate_invoke_impl trampolines */ l = mono_arch_get_delegate_invoke_impls (); while (l) { MonoTrampInfo *info = (MonoTrampInfo *)l->data; emit_trampoline (acfg, acfg->got_offset, info); l = l->next; } } if (mono_aot_mode_is_interp (&acfg->aot_opts)) { mono_arch_get_enter_icall_trampoline (&info); emit_trampoline (acfg, acfg->got_offset, info); } #endif /* #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES */ /* Emit trampolines which are numerous */ /* * These include the following: * - specific trampolines * - static rgctx invoke trampolines * - imt trampolines * These trampolines have the same code, they are parameterized by GOT * slots. * They are defined in this file, in the arch_... routines instead of * in tramp-.c, since it is easier to do it this way. */ /* * When running in aot-only mode, we can't create specific trampolines at * runtime, so we create a few, and save them in the AOT file. * Normal trampolines embed their argument as a literal inside the * trampoline code, we can't do that here, so instead we embed an offset * which needs to be added to the trampoline address to get the address of * the GOT slot which contains the argument value. * The generated trampolines jump to the generic trampolines using another * GOT slot, which will be setup by the AOT loader to point to the * generic trampoline code of the given type. */ /* * FIXME: Maybe we should use more specific trampolines (i.e. one class init for * each class). */ emit_section_change (acfg, ".text", 0); tramp_got_offset = acfg->got_offset; for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype) { switch (ntype) { case MONO_AOT_TRAMP_SPECIFIC: sprintf (symbol, "specific_trampolines"); break; case MONO_AOT_TRAMP_STATIC_RGCTX: sprintf (symbol, "static_rgctx_trampolines"); break; case MONO_AOT_TRAMP_IMT: sprintf (symbol, "imt_trampolines"); break; case MONO_AOT_TRAMP_GSHAREDVT_ARG: sprintf (symbol, "gsharedvt_arg_trampolines"); break; default: g_assert_not_reached (); } sprintf (end_symbol, "%s_e", symbol); if (acfg->aot_opts.write_symbols) emit_local_symbol (acfg, symbol, end_symbol, TRUE); emit_alignment_code (acfg, AOT_FUNC_ALIGNMENT); emit_info_symbol (acfg, symbol); acfg->trampoline_got_offset_base [ntype] = tramp_got_offset; for (i = 0; i < acfg->num_trampolines [ntype]; ++i) { int tramp_size = 0; switch (ntype) { case MONO_AOT_TRAMP_SPECIFIC: arch_emit_specific_trampoline (acfg, tramp_got_offset, &tramp_size); tramp_got_offset += 2; break; case MONO_AOT_TRAMP_STATIC_RGCTX: arch_emit_static_rgctx_trampoline (acfg, tramp_got_offset, &tramp_size); tramp_got_offset += 2; break; case MONO_AOT_TRAMP_IMT: arch_emit_imt_trampoline (acfg, tramp_got_offset, &tramp_size); tramp_got_offset += 1; break; case MONO_AOT_TRAMP_GSHAREDVT_ARG: arch_emit_gsharedvt_arg_trampoline (acfg, tramp_got_offset, &tramp_size); tramp_got_offset += 2; break; default: g_assert_not_reached (); } if (!acfg->trampoline_size [ntype]) { g_assert (tramp_size); acfg->trampoline_size [ntype] = tramp_size; } } emit_label (acfg, end_symbol); emit_int32 (acfg, 0); } arch_emit_specific_trampoline_pages (acfg); /* Reserve some entries at the end of the GOT for our use */ acfg->num_trampoline_got_entries = tramp_got_offset - acfg->got_offset; } acfg->got_offset += acfg->num_trampoline_got_entries; } static gboolean str_begins_with (const char *str1, const char *str2) { int len = strlen (str2); return strncmp (str1, str2, len) == 0; } void* mono_aot_readonly_field_override (MonoClassField *field) { ReadOnlyValue *rdv; for (rdv = readonly_values; rdv; rdv = rdv->next) { char *p = rdv->name; int len; len = strlen (field->parent->name_space); if (strncmp (p, field->parent->name_space, len)) continue; p += len; if (*p++ != '.') continue; len = strlen (field->parent->name); if (strncmp (p, field->parent->name, len)) continue; p += len; if (*p++ != '.') continue; if (strcmp (p, field->name)) continue; switch (rdv->type) { case MONO_TYPE_I1: return &rdv->value.i1; case MONO_TYPE_I2: return &rdv->value.i2; case MONO_TYPE_I4: return &rdv->value.i4; default: break; } } return NULL; } static void add_readonly_value (MonoAotOptions *opts, const char *val) { ReadOnlyValue *rdv; const char *fval; const char *tval; /* the format of val is: * namespace.typename.fieldname=type/value * type can be i1 for uint8/int8/boolean, i2 for uint16/int16/char, i4 for uint32/int32 */ fval = strrchr (val, '/'); if (!fval) { fprintf (stderr, "AOT : invalid format for readonly field '%s', missing /.\n", val); exit (1); } tval = strrchr (val, '='); if (!tval) { fprintf (stderr, "AOT : invalid format for readonly field '%s', missing =.\n", val); exit (1); } rdv = g_new0 (ReadOnlyValue, 1); rdv->name = (char *)g_malloc0 (tval - val + 1); memcpy (rdv->name, val, tval - val); tval++; fval++; if (strncmp (tval, "i1", 2) == 0) { rdv->value.i1 = atoi (fval); rdv->type = MONO_TYPE_I1; } else if (strncmp (tval, "i2", 2) == 0) { rdv->value.i2 = atoi (fval); rdv->type = MONO_TYPE_I2; } else if (strncmp (tval, "i4", 2) == 0) { rdv->value.i4 = atoi (fval); rdv->type = MONO_TYPE_I4; } else { fprintf (stderr, "AOT : unsupported type for readonly field '%s'.\n", tval); exit (1); } rdv->next = readonly_values; readonly_values = rdv; } static gchar * clean_path (gchar * path) { if (!path) return NULL; if (g_str_has_suffix (path, G_DIR_SEPARATOR_S)) return path; gchar *clean = g_strconcat (path, G_DIR_SEPARATOR_S, NULL); g_free (path); return clean; } static gchar * wrap_path (gchar * path) { int len; if (!path) return NULL; // If the string contains no spaces, just return the original string. if (strstr (path, " ") == NULL) return path; // If the string is already wrapped in quotes, return it. len = strlen (path); if (len >= 2 && path[0] == '\"' && path[len-1] == '\"') return path; // If the string contains spaces, then wrap it in quotes. gchar *clean = g_strdup_printf ("\"%s\"", path); return clean; } // Duplicate a char range and add it to a ptrarray, but only if it is nonempty static void ptr_array_add_range_if_nonempty(GPtrArray *args, gchar const *start, gchar const *end) { ptrdiff_t len = end-start; if (len > 0) g_ptr_array_add (args, g_strndup (start, len)); } static GPtrArray * mono_aot_split_options (const char *aot_options) { enum MonoAotOptionState { MONO_AOT_OPTION_STATE_DEFAULT, MONO_AOT_OPTION_STATE_STRING, MONO_AOT_OPTION_STATE_ESCAPE, }; GPtrArray *args = g_ptr_array_new (); enum MonoAotOptionState state = MONO_AOT_OPTION_STATE_DEFAULT; gchar const *opt_start = aot_options; gboolean end_of_string = FALSE; gchar cur; g_return_val_if_fail (aot_options != NULL, NULL); while ((cur = *aot_options) != '\0') { if (state == MONO_AOT_OPTION_STATE_ESCAPE) goto next; switch (cur) { case '"': // If we find a quote, then if we're in the default case then // it means we've found the start of a string, if not then it // means we've found the end of the string and should switch // back to the default case. switch (state) { case MONO_AOT_OPTION_STATE_DEFAULT: state = MONO_AOT_OPTION_STATE_STRING; break; case MONO_AOT_OPTION_STATE_STRING: state = MONO_AOT_OPTION_STATE_DEFAULT; break; case MONO_AOT_OPTION_STATE_ESCAPE: g_assert_not_reached (); break; } break; case '\\': // If we've found an escaping operator, then this means we // should not process the next character if inside a string. if (state == MONO_AOT_OPTION_STATE_STRING) state = MONO_AOT_OPTION_STATE_ESCAPE; break; case ',': // If we're in the default state then this means we've found // an option, store it for later processing. if (state == MONO_AOT_OPTION_STATE_DEFAULT) goto new_opt; break; } next: aot_options++; restart: // If the next character is end of string, then process the last option. if (*(aot_options) == '\0') { end_of_string = TRUE; goto new_opt; } continue; new_opt: ptr_array_add_range_if_nonempty (args, opt_start, aot_options); opt_start = ++aot_options; if (end_of_string) break; goto restart; // Check for null and continue loop } return args; } static void mono_aot_parse_options (const char *aot_options, MonoAotOptions *opts) { GPtrArray* args; args = mono_aot_split_options (aot_options ? aot_options : ""); for (int i = 0; i < args->len; ++i) { const char *arg = (const char *)g_ptr_array_index (args, i); if (str_begins_with (arg, "outfile=")) { opts->outfile = g_strdup (arg + strlen ("outfile=")); } else if (str_begins_with (arg, "llvm-outfile=")) { opts->llvm_outfile = g_strdup (arg + strlen ("llvm-outfile=")); } else if (str_begins_with (arg, "temp-path=")) { opts->temp_path = clean_path (g_strdup (arg + strlen ("temp-path="))); } else if (str_begins_with (arg, "save-temps")) { opts->save_temps = TRUE; } else if (str_begins_with (arg, "keep-temps")) { opts->save_temps = TRUE; } else if (str_begins_with (arg, "write-symbols")) { opts->write_symbols = TRUE; } else if (str_begins_with (arg, "no-write-symbols")) { opts->write_symbols = FALSE; // Intentionally undocumented -- one-off experiment } else if (str_begins_with (arg, "metadata-only")) { opts->metadata_only = TRUE; } else if (str_begins_with (arg, "bind-to-runtime-version")) { opts->bind_to_runtime_version = TRUE; } else if (str_begins_with (arg, "full")) { opts->mode = MONO_AOT_MODE_FULL; } else if (str_begins_with (arg, "hybrid")) { opts->mode = MONO_AOT_MODE_HYBRID; } else if (str_begins_with (arg, "interp")) { opts->mode = MONO_AOT_MODE_INTERP; } else if (str_begins_with (arg, "threads=")) { opts->nthreads = atoi (arg + strlen ("threads=")); } else if (str_begins_with (arg, "static")) { opts->static_link = TRUE; opts->no_dlsym = TRUE; } else if (str_begins_with (arg, "asmonly")) { opts->asm_only = TRUE; } else if (str_begins_with (arg, "asmwriter")) { opts->asm_writer = TRUE; } else if (str_begins_with (arg, "nodebug")) { opts->nodebug = TRUE; } else if (str_begins_with (arg, "dwarfdebug")) { opts->dwarf_debug = TRUE; // Intentionally undocumented -- No one remembers what this does. It appears to be ARM-only } else if (str_begins_with (arg, "nopagetrampolines")) { opts->use_trampolines_page = FALSE; } else if (str_begins_with (arg, "ntrampolines=")) { opts->ntrampolines = atoi (arg + strlen ("ntrampolines=")); } else if (str_begins_with (arg, "nrgctx-trampolines=")) { opts->nrgctx_trampolines = atoi (arg + strlen ("nrgctx-trampolines=")); } else if (str_begins_with (arg, "nrgctx-fetch-trampolines=")) { opts->nrgctx_fetch_trampolines = atoi (arg + strlen ("nrgctx-fetch-trampolines=")); } else if (str_begins_with (arg, "nimt-trampolines=")) { opts->nimt_trampolines = atoi (arg + strlen ("nimt-trampolines=")); } else if (str_begins_with (arg, "ngsharedvt-trampolines=")) { opts->ngsharedvt_arg_trampolines = atoi (arg + strlen ("ngsharedvt-trampolines=")); } else if (str_begins_with (arg, "tool-prefix=")) { opts->tool_prefix = g_strdup (arg + strlen ("tool-prefix=")); } else if (str_begins_with (arg, "ld-flags=")) { opts->ld_flags = g_strdup (arg + strlen ("ld-flags=")); } else if (str_begins_with (arg, "soft-debug")) { opts->soft_debug = TRUE; // Intentionally undocumented x2-- deprecated } else if (str_begins_with (arg, "gen-seq-points-file=")) { fprintf (stderr, "Mono Warning: aot option gen-seq-points-file= is deprecated.\n"); } else if (str_begins_with (arg, "gen-seq-points-file")) { fprintf (stderr, "Mono Warning: aot option gen-seq-points-file is deprecated.\n"); } else if (str_begins_with (arg, "msym-dir=")) { debug_options.no_seq_points_compact_data = FALSE; opts->gen_msym_dir = TRUE; opts->gen_msym_dir_path = g_strdup (arg + strlen ("msym_dir="));; } else if (str_begins_with (arg, "direct-pinvoke")) { opts->direct_pinvoke = TRUE; } else if (str_begins_with (arg, "direct-icalls")) { opts->direct_icalls = TRUE; } else if (str_begins_with (arg, "no-direct-calls")) { opts->no_direct_calls = TRUE; } else if (str_begins_with (arg, "print-skipped")) { opts->print_skipped_methods = TRUE; } else if (str_begins_with (arg, "stats")) { opts->stats = TRUE; // Intentionally undocumented-- has no known function other than to debug the compiler } else if (str_begins_with (arg, "no-instances")) { opts->no_instances = TRUE; // Intentionally undocumented x4-- Used for internal debugging of compiler } else if (str_begins_with (arg, "log-generics")) { opts->log_generics = TRUE; } else if (str_begins_with (arg, "log-instances=")) { opts->log_instances = TRUE; opts->instances_logfile_path = g_strdup (arg + strlen ("log-instances=")); } else if (str_begins_with (arg, "log-instances")) { opts->log_instances = TRUE; } else if (str_begins_with (arg, "internal-logfile=")) { opts->logfile = g_strdup (arg + strlen ("internal-logfile=")); } else if (str_begins_with (arg, "mtriple=")) { opts->mtriple = g_strdup (arg + strlen ("mtriple=")); } else if (str_begins_with (arg, "llvm-path=")) { opts->llvm_path = clean_path (g_strdup (arg + strlen ("llvm-path="))); } else if (!strcmp (arg, "llvm")) { opts->llvm = TRUE; } else if (str_begins_with (arg, "readonly-value=")) { add_readonly_value (opts, arg + strlen ("readonly-value=")); } else if (str_begins_with (arg, "info")) { printf ("AOT target setup: %s.\n", AOT_TARGET_STR); exit (0); // Intentionally undocumented: Used for precise stack maps, which are not available yet } else if (str_begins_with (arg, "gc-maps")) { mini_gc_enable_gc_maps_for_aot (); // Intentionally undocumented: Used for internal debugging } else if (str_begins_with (arg, "dump")) { opts->dump_json = TRUE; } else if (str_begins_with (arg, "llvmonly")) { opts->mode = MONO_AOT_MODE_FULL; opts->llvm = TRUE; opts->llvm_only = TRUE; } else if (str_begins_with (arg, "data-outfile=")) { opts->data_outfile = g_strdup (arg + strlen ("data-outfile=")); } else if (str_begins_with (arg, "profile=")) { opts->profile_files = g_list_append (opts->profile_files, g_strdup (arg + strlen ("profile="))); } else if (!strcmp (arg, "profile-only")) { opts->profile_only = TRUE; } else if (!strcmp (arg, "verbose")) { opts->verbose = TRUE; } else if (str_begins_with (arg, "help") || str_begins_with (arg, "?")) { printf ("Supported options for --aot:\n"); printf (" asmonly\n"); printf (" bind-to-runtime-version\n"); printf (" bitcode\n"); printf (" data-outfile=\n"); printf (" direct-icalls\n"); printf (" direct-pinvoke\n"); printf (" dwarfdebug\n"); printf (" full\n"); printf (" hybrid\n"); printf (" info\n"); printf (" keep-temps\n"); printf (" llvm\n"); printf (" llvmonly\n"); printf (" llvm-outfile=\n"); printf (" llvm-path=\n"); printf (" msym-dir=\n"); printf (" mtriple\n"); printf (" nimt-trampolines=\n"); printf (" nodebug\n"); printf (" no-direct-calls\n"); printf (" no-write-symbols\n"); printf (" nrgctx-trampolines=\n"); printf (" nrgctx-fetch-trampolines=\n"); printf (" ngsharedvt-trampolines=\n"); printf (" ntrampolines=\n"); printf (" outfile=\n"); printf (" profile=\n"); printf (" profile-only\n"); printf (" print-skipped-methods\n"); printf (" readonly-value=\n"); printf (" save-temps\n"); printf (" soft-debug\n"); printf (" static\n"); printf (" stats\n"); printf (" temp-path=\n"); printf (" tool-prefix=\n"); printf (" threads=\n"); printf (" write-symbols\n"); printf (" verbose\n"); printf (" help/?\n"); exit (0); } else { fprintf (stderr, "AOT : Unknown argument '%s'.\n", arg); exit (1); } g_free ((gpointer) arg); } if (opts->use_trampolines_page) { opts->ntrampolines = 0; opts->nrgctx_trampolines = 0; opts->nimt_trampolines = 0; opts->ngsharedvt_arg_trampolines = 0; } g_ptr_array_free (args, /*free_seg=*/TRUE); } static void add_token_info_hash (gpointer key, gpointer value, gpointer user_data) { MonoMethod *method = (MonoMethod*)key; MonoJumpInfoToken *ji = (MonoJumpInfoToken*)value; MonoAotCompile *acfg = (MonoAotCompile *)user_data; MonoJumpInfoToken *new_ji; new_ji = (MonoJumpInfoToken *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfoToken)); new_ji->image = ji->image; new_ji->token = ji->token; g_hash_table_insert (acfg->token_info_hash, method, new_ji); } static gboolean can_encode_class (MonoAotCompile *acfg, MonoClass *klass) { if (klass->type_token) return TRUE; if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR) || (klass->byval_arg.type == MONO_TYPE_PTR)) return TRUE; if (klass->rank) return can_encode_class (acfg, klass->element_class); return FALSE; } static gboolean can_encode_method (MonoAotCompile *acfg, MonoMethod *method) { if (method->wrapper_type) { switch (method->wrapper_type) { case MONO_WRAPPER_NONE: case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: case MONO_WRAPPER_XDOMAIN_INVOKE: case MONO_WRAPPER_STFLD: case MONO_WRAPPER_LDFLD: case MONO_WRAPPER_LDFLDA: case MONO_WRAPPER_STELEMREF: case MONO_WRAPPER_PROXY_ISINST: case MONO_WRAPPER_ALLOC: case MONO_WRAPPER_REMOTING_INVOKE: case MONO_WRAPPER_UNKNOWN: case MONO_WRAPPER_WRITE_BARRIER: case MONO_WRAPPER_DELEGATE_INVOKE: case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE: case MONO_WRAPPER_DELEGATE_END_INVOKE: case MONO_WRAPPER_SYNCHRONIZED: break; case MONO_WRAPPER_MANAGED_TO_MANAGED: case MONO_WRAPPER_CASTCLASS: { WrapperInfo *info = mono_marshal_get_wrapper_info (method); if (info) return TRUE; else return FALSE; break; } default: //printf ("Skip (wrapper call): %d -> %s\n", patch_info->type, mono_method_full_name (patch_info->data.method, TRUE)); return FALSE; } } else { if (!method->token) { /* The method is part of a constructed type like Int[,].Set (). */ if (!g_hash_table_lookup (acfg->token_info_hash, method)) { if (method->klass->rank) return TRUE; return FALSE; } } } return TRUE; } static gboolean can_encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info) { switch (patch_info->type) { case MONO_PATCH_INFO_METHOD: case MONO_PATCH_INFO_METHODCONST: case MONO_PATCH_INFO_METHOD_CODE_SLOT: { MonoMethod *method = patch_info->data.method; return can_encode_method (acfg, method); } case MONO_PATCH_INFO_VTABLE: case MONO_PATCH_INFO_CLASS: case MONO_PATCH_INFO_IID: case MONO_PATCH_INFO_ADJUSTED_IID: if (!can_encode_class (acfg, patch_info->data.klass)) { //printf ("Skip: %s\n", mono_type_full_name (&patch_info->data.klass->byval_arg)); return FALSE; } break; case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE: { if (!can_encode_class (acfg, patch_info->data.del_tramp->klass)) { //printf ("Skip: %s\n", mono_type_full_name (&patch_info->data.klass->byval_arg)); return FALSE; } break; } case MONO_PATCH_INFO_RGCTX_FETCH: case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: { MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry; if (!can_encode_method (acfg, entry->method)) return FALSE; if (!can_encode_patch (acfg, entry->data)) return FALSE; break; } default: break; } return TRUE; } static gboolean is_concrete_type (MonoType *t) { MonoClass *klass; int i; if (t->type == MONO_TYPE_VAR || t->type == MONO_TYPE_MVAR) return FALSE; if (t->type == MONO_TYPE_GENERICINST) { MonoGenericContext *orig_ctx; MonoGenericInst *inst; MonoType *arg; if (!MONO_TYPE_ISSTRUCT (t)) return TRUE; klass = mono_class_from_mono_type (t); orig_ctx = &mono_class_get_generic_class (klass)->context; inst = orig_ctx->class_inst; if (inst) { for (i = 0; i < inst->type_argc; ++i) { arg = mini_get_underlying_type (inst->type_argv [i]); if (!is_concrete_type (arg)) return FALSE; } } inst = orig_ctx->method_inst; if (inst) { for (i = 0; i < inst->type_argc; ++i) { arg = mini_get_underlying_type (inst->type_argv [i]); if (!is_concrete_type (arg)) return FALSE; } } } return TRUE; } /* LOCKING: Assumes the loader lock is held */ static void add_gsharedvt_wrappers (MonoAotCompile *acfg, MonoMethodSignature *sig, gboolean gsharedvt_in, gboolean gsharedvt_out) { MonoMethod *wrapper; gboolean concrete = TRUE; gboolean add_in = gsharedvt_in; gboolean add_out = gsharedvt_out; if (gsharedvt_in && g_hash_table_lookup (acfg->gsharedvt_in_signatures, sig)) add_in = FALSE; if (gsharedvt_out && g_hash_table_lookup (acfg->gsharedvt_out_signatures, sig)) add_out = FALSE; if (!add_in && !add_out) return; if (mini_is_gsharedvt_variable_signature (sig)) return; if (add_in) g_hash_table_insert (acfg->gsharedvt_in_signatures, sig, sig); if (add_out) g_hash_table_insert (acfg->gsharedvt_out_signatures, sig, sig); if (!sig->has_type_parameters) { //printf ("%s\n", mono_signature_full_name (sig)); if (gsharedvt_in) { wrapper = mini_get_gsharedvt_in_sig_wrapper (sig); add_extra_method (acfg, wrapper); } if (gsharedvt_out) { wrapper = mini_get_gsharedvt_out_sig_wrapper (sig); add_extra_method (acfg, wrapper); } } else { /* For signatures creared during generic sharing, convert them to a concrete signature if possible */ MonoMethodSignature *copy = mono_metadata_signature_dup (sig); int i; //printf ("%s\n", mono_signature_full_name (sig)); copy->ret = mini_get_underlying_type (sig->ret); if (!is_concrete_type (copy->ret)) concrete = FALSE; for (i = 0; i < sig->param_count; ++i) { copy->params [i] = mini_get_underlying_type (sig->params [i]); if (!is_concrete_type (copy->params [i])) concrete = FALSE; } if (concrete) { copy->has_type_parameters = 0; if (gsharedvt_in) { wrapper = mini_get_gsharedvt_in_sig_wrapper (copy); add_extra_method (acfg, wrapper); } if (gsharedvt_out) { wrapper = mini_get_gsharedvt_out_sig_wrapper (copy); add_extra_method (acfg, wrapper); } //printf ("%s\n", mono_method_full_name (wrapper, 1)); } } } /* * compile_method: * * AOT compile a given method. * This function might be called by multiple threads, so it must be thread-safe. */ static void compile_method (MonoAotCompile *acfg, MonoMethod *method) { MonoCompile *cfg; MonoJumpInfo *patch_info; gboolean skip; int index, depth; MonoMethod *wrapped; GTimer *jit_timer; JitFlags flags; if (acfg->aot_opts.metadata_only) return; mono_acfg_lock (acfg); index = get_method_index (acfg, method); mono_acfg_unlock (acfg); /* fixme: maybe we can also precompile wrapper methods */ if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) || (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) || (method->flags & METHOD_ATTRIBUTE_ABSTRACT)) { //printf ("Skip (impossible): %s\n", mono_method_full_name (method, TRUE)); return; } if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) return; wrapped = mono_marshal_method_from_wrapper (method); if (wrapped && (wrapped->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && wrapped->is_generic) // FIXME: The wrapper should be generic too, but it is not return; if (method->wrapper_type == MONO_WRAPPER_COMINTEROP) return; if (acfg->aot_opts.profile_only && !method->is_inflated && !g_hash_table_lookup (acfg->profile_methods, method)) return; InterlockedIncrement (&acfg->stats.mcount); #if 0 if (method->is_generic || mono_class_is_gtd (method->klass)) { InterlockedIncrement (&acfg->stats.genericcount); return; } #endif //acfg->aot_opts.print_skipped_methods = TRUE; /* * Since these methods are the only ones which are compiled with * AOT support, and they are not used by runtime startup/shutdown code, * the runtime will not see AOT methods during AOT compilation,so it * does not need to support them by creating a fake GOT etc. */ flags = JIT_FLAG_AOT; if (mono_aot_mode_is_full (&acfg->aot_opts)) flags = (JitFlags)(flags | JIT_FLAG_FULL_AOT); if (acfg->llvm) flags = (JitFlags)(flags | JIT_FLAG_LLVM); if (acfg->aot_opts.llvm_only) flags = (JitFlags)(flags | JIT_FLAG_LLVM_ONLY | JIT_FLAG_EXPLICIT_NULL_CHECKS); if (acfg->aot_opts.no_direct_calls) flags = (JitFlags)(flags | JIT_FLAG_NO_DIRECT_ICALLS); if (acfg->aot_opts.direct_pinvoke) flags = (JitFlags)(flags | JIT_FLAG_DIRECT_PINVOKE); jit_timer = mono_time_track_start (); cfg = mini_method_compile (method, acfg->opts, mono_get_root_domain (), flags, 0, index); mono_time_track_end (&mono_jit_stats.jit_time, jit_timer); if (cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) { if (acfg->aot_opts.print_skipped_methods) printf ("Skip (gshared failure): %s (%s)\n", mono_method_get_full_name (method), cfg->exception_message); InterlockedIncrement (&acfg->stats.genericcount); return; } if (cfg->exception_type != MONO_EXCEPTION_NONE) { /* Some instances cannot be JITted due to constraints etc. */ if (!method->is_inflated) report_loader_error (acfg, &cfg->error, FALSE, "Unable to compile method '%s' due to: '%s'.\n", mono_method_get_full_name (method), mono_error_get_message (&cfg->error)); /* Let the exception happen at runtime */ return; } if (cfg->disable_aot) { if (acfg->aot_opts.print_skipped_methods) printf ("Skip (disabled): %s\n", mono_method_get_full_name (method)); InterlockedIncrement (&acfg->stats.ocount); return; } cfg->method_index = index; /* Nullify patches which need no aot processing */ for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) { switch (patch_info->type) { case MONO_PATCH_INFO_LABEL: case MONO_PATCH_INFO_BB: patch_info->type = MONO_PATCH_INFO_NONE; break; default: break; } } /* Collect method->token associations from the cfg */ mono_acfg_lock (acfg); g_hash_table_foreach (cfg->token_info_hash, add_token_info_hash, acfg); mono_acfg_unlock (acfg); g_hash_table_destroy (cfg->token_info_hash); cfg->token_info_hash = NULL; /* * Check for absolute addresses. */ skip = FALSE; for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) { switch (patch_info->type) { case MONO_PATCH_INFO_ABS: /* unable to handle this */ skip = TRUE; break; default: break; } } if (skip) { if (acfg->aot_opts.print_skipped_methods) printf ("Skip (abs call): %s\n", mono_method_get_full_name (method)); InterlockedIncrement (&acfg->stats.abscount); return; } /* Lock for the rest of the code */ mono_acfg_lock (acfg); if (cfg->gsharedvt) acfg->stats.method_categories [METHOD_CAT_GSHAREDVT] ++; else if (cfg->gshared) acfg->stats.method_categories [METHOD_CAT_INST] ++; else if (cfg->method->wrapper_type) acfg->stats.method_categories [METHOD_CAT_WRAPPER] ++; else acfg->stats.method_categories [METHOD_CAT_NORMAL] ++; /* * Check for methods/klasses we can't encode. */ skip = FALSE; for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) { if (!can_encode_patch (acfg, patch_info)) skip = TRUE; } if (skip) { if (acfg->aot_opts.print_skipped_methods) printf ("Skip (patches): %s\n", mono_method_get_full_name (method)); acfg->stats.ocount++; mono_acfg_unlock (acfg); return; } if (!cfg->compile_llvm) acfg->has_jitted_code = TRUE; if (method->is_inflated && acfg->aot_opts.log_instances) { if (acfg->instances_logfile) fprintf (acfg->instances_logfile, "%s ### %d\n", mono_method_get_full_name (method), cfg->code_size); else printf ("%s ### %d\n", mono_method_get_full_name (method), cfg->code_size); } /* Adds generic instances referenced by this method */ /* * The depth is used to avoid infinite loops when generic virtual recursion is * encountered. */ depth = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_depth, method)); if (!acfg->aot_opts.no_instances && depth < 32 && mono_aot_mode_is_full (&acfg->aot_opts)) { for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) { switch (patch_info->type) { case MONO_PATCH_INFO_RGCTX_FETCH: case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: case MONO_PATCH_INFO_METHOD: { MonoMethod *m = NULL; if (patch_info->type == MONO_PATCH_INFO_RGCTX_FETCH || patch_info->type == MONO_PATCH_INFO_RGCTX_SLOT_INDEX) { MonoJumpInfoRgctxEntry *e = patch_info->data.rgctx_entry; if (e->info_type == MONO_RGCTX_INFO_GENERIC_METHOD_CODE) m = e->data->data.method; } else { m = patch_info->data.method; } if (!m) break; if (m->is_inflated && mono_aot_mode_is_full (&acfg->aot_opts)) { if (!(mono_class_generic_sharing_enabled (m->klass) && mono_method_is_generic_sharable_full (m, FALSE, FALSE, FALSE)) && (!method_has_type_vars (m) || mono_method_is_generic_sharable_full (m, TRUE, TRUE, FALSE))) { if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) { if (mono_aot_mode_is_full (&acfg->aot_opts) && !method_has_type_vars (m)) add_extra_method_with_depth (acfg, mono_marshal_get_native_wrapper (m, TRUE, TRUE), depth + 1); } else { add_extra_method_with_depth (acfg, m, depth + 1); add_types_from_method_header (acfg, m); } } add_generic_class_with_depth (acfg, m->klass, depth + 5, "method"); } if (m->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED) { WrapperInfo *info = mono_marshal_get_wrapper_info (m); if (info && info->subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) add_extra_method_with_depth (acfg, m, depth + 1); } break; } case MONO_PATCH_INFO_VTABLE: { MonoClass *klass = patch_info->data.klass; if (mono_class_is_ginst (klass) && !mini_class_is_generic_sharable (klass)) add_generic_class_with_depth (acfg, klass, depth + 5, "vtable"); break; } case MONO_PATCH_INFO_SFLDA: { MonoClass *klass = patch_info->data.field->parent; /* The .cctor needs to run at runtime. */ if (mono_class_is_ginst (klass) && !mono_generic_context_is_sharable_full (&mono_class_get_generic_class (klass)->context, FALSE, FALSE) && mono_class_get_cctor (klass)) add_extra_method_with_depth (acfg, mono_class_get_cctor (klass), depth + 1); break; } default: break; } } } /* Determine whenever the method has GOT slots */ for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) { switch (patch_info->type) { case MONO_PATCH_INFO_GOT_OFFSET: case MONO_PATCH_INFO_NONE: case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR: case MONO_PATCH_INFO_GC_NURSERY_START: case MONO_PATCH_INFO_GC_NURSERY_BITS: break; case MONO_PATCH_INFO_IMAGE: /* The assembly is stored in GOT slot 0 */ if (patch_info->data.image != acfg->image) cfg->has_got_slots = TRUE; break; default: if (!is_plt_patch (patch_info) || (cfg->compile_llvm && acfg->aot_opts.llvm_only)) cfg->has_got_slots = TRUE; break; } } if (!cfg->has_got_slots) InterlockedIncrement (&acfg->stats.methods_without_got_slots); /* Add gsharedvt wrappers for signatures used by the method */ if (acfg->aot_opts.llvm_only) { GSList *l; if (!cfg->method->wrapper_type || cfg->method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) /* These only need out wrappers */ add_gsharedvt_wrappers (acfg, mono_method_signature (cfg->method), FALSE, TRUE); for (l = cfg->signatures; l; l = l->next) { MonoMethodSignature *sig = mono_metadata_signature_dup ((MonoMethodSignature*)l->data); /* These only need in wrappers */ add_gsharedvt_wrappers (acfg, sig, TRUE, FALSE); } } /* * FIXME: Instead of this mess, allocate the patches from the aot mempool. */ /* Make a copy of the patch info which is in the mempool */ { MonoJumpInfo *patches = NULL, *patches_end = NULL; for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) { MonoJumpInfo *new_patch_info = mono_patch_info_dup_mp (acfg->mempool, patch_info); if (!patches) patches = new_patch_info; else patches_end->next = new_patch_info; patches_end = new_patch_info; } cfg->patch_info = patches; } /* Make a copy of the unwind info */ { GSList *l, *unwind_ops; MonoUnwindOp *op; unwind_ops = NULL; for (l = cfg->unwind_ops; l; l = l->next) { op = (MonoUnwindOp *)mono_mempool_alloc (acfg->mempool, sizeof (MonoUnwindOp)); memcpy (op, l->data, sizeof (MonoUnwindOp)); unwind_ops = g_slist_prepend_mempool (acfg->mempool, unwind_ops, op); } cfg->unwind_ops = g_slist_reverse (unwind_ops); } /* Make a copy of the argument/local info */ { MonoError error; MonoInst **args, **locals; MonoMethodSignature *sig; MonoMethodHeader *header; int i; sig = mono_method_signature (method); args = (MonoInst **)mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * (sig->param_count + sig->hasthis)); for (i = 0; i < sig->param_count + sig->hasthis; ++i) { args [i] = (MonoInst *)mono_mempool_alloc (acfg->mempool, sizeof (MonoInst)); memcpy (args [i], cfg->args [i], sizeof (MonoInst)); } cfg->args = args; header = mono_method_get_header_checked (method, &error); mono_error_assert_ok (&error); /* FIXME don't swallow the error */ locals = (MonoInst **)mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * header->num_locals); for (i = 0; i < header->num_locals; ++i) { locals [i] = (MonoInst *)mono_mempool_alloc (acfg->mempool, sizeof (MonoInst)); memcpy (locals [i], cfg->locals [i], sizeof (MonoInst)); } mono_metadata_free_mh (header); cfg->locals = locals; } /* Free some fields used by cfg to conserve memory */ mono_empty_compile (cfg); //printf ("Compile: %s\n", mono_method_full_name (method, TRUE)); while (index >= acfg->cfgs_size) { MonoCompile **new_cfgs; int new_size; new_size = acfg->cfgs_size * 2; new_cfgs = g_new0 (MonoCompile*, new_size); memcpy (new_cfgs, acfg->cfgs, sizeof (MonoCompile*) * acfg->cfgs_size); g_free (acfg->cfgs); acfg->cfgs = new_cfgs; acfg->cfgs_size = new_size; } acfg->cfgs [index] = cfg; g_hash_table_insert (acfg->method_to_cfg, cfg->orig_method, cfg); /* Update global stats while holding a lock. */ mono_update_jit_stats (cfg); /* if (cfg->orig_method->wrapper_type) g_ptr_array_add (acfg->extra_methods, cfg->orig_method); */ mono_acfg_unlock (acfg); InterlockedIncrement (&acfg->stats.ccount); } static mono_thread_start_return_t WINAPI compile_thread_main (gpointer user_data) { MonoAotCompile *acfg = ((MonoAotCompile **)user_data) [0]; GPtrArray *methods = ((GPtrArray **)user_data) [1]; int i; MonoError error; MonoInternalThread *internal = mono_thread_internal_current (); MonoString *str = mono_string_new_checked (mono_domain_get (), "AOT compiler", &error); mono_error_assert_ok (&error); mono_thread_set_name_internal (internal, str, TRUE, FALSE, &error); mono_error_assert_ok (&error); for (i = 0; i < methods->len; ++i) compile_method (acfg, (MonoMethod *)g_ptr_array_index (methods, i)); return 0; } /* Used by the LLVM backend */ guint32 mono_aot_get_got_offset (MonoJumpInfo *ji) { return get_got_offset (llvm_acfg, TRUE, ji); } /* * mono_aot_is_shared_got_offset: * * Return whenever OFFSET refers to a GOT slot which is preinitialized * when the AOT image is loaded. */ gboolean mono_aot_is_shared_got_offset (int offset) { return offset < llvm_acfg->nshared_got_entries; } char* mono_aot_get_method_name (MonoCompile *cfg) { if (llvm_acfg->aot_opts.static_link) /* Include the assembly name too to avoid duplicate symbol errors */ return g_strdup_printf ("%s_%s", llvm_acfg->assembly_name_sym, get_debug_sym (cfg->orig_method, "", llvm_acfg->method_label_hash)); else return get_debug_sym (cfg->orig_method, "", llvm_acfg->method_label_hash); } /* * mono_aot_is_linkonce_method: * * Return whenever METHOD should be emitted with linkonce linkage, * eliminating duplicate copies when compiling in static mode. */ gboolean mono_aot_is_linkonce_method (MonoMethod *method) { return FALSE; #if 0 WrapperInfo *info; // FIXME: Add more cases if (method->wrapper_type != MONO_WRAPPER_UNKNOWN) return FALSE; info = mono_marshal_get_wrapper_info (method); if ((info && (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG))) return TRUE; return FALSE; #endif } static gboolean append_mangled_type (GString *s, MonoType *t) { if (t->byref) g_string_append_printf (s, "b"); switch (t->type) { case MONO_TYPE_VOID: g_string_append_printf (s, "void_"); break; case MONO_TYPE_I1: g_string_append_printf (s, "i1"); break; case MONO_TYPE_U1: g_string_append_printf (s, "u1"); break; case MONO_TYPE_I2: g_string_append_printf (s, "i2"); break; case MONO_TYPE_U2: g_string_append_printf (s, "u2"); break; case MONO_TYPE_I4: g_string_append_printf (s, "i4"); break; case MONO_TYPE_U4: g_string_append_printf (s, "u4"); break; case MONO_TYPE_I8: g_string_append_printf (s, "i8"); break; case MONO_TYPE_U8: g_string_append_printf (s, "u8"); break; case MONO_TYPE_I: g_string_append_printf (s, "ii"); break; case MONO_TYPE_U: g_string_append_printf (s, "ui"); break; case MONO_TYPE_R4: g_string_append_printf (s, "fl"); break; case MONO_TYPE_R8: g_string_append_printf (s, "do"); break; default: { char *fullname = mono_type_full_name (t); GString *temp; char *temps; int i, len; /* * Have to create a mangled name which is: * - a valid symbol * - unique */ temp = g_string_new (""); len = strlen (fullname); for (i = 0; i < len; ++i) { char c = fullname [i]; if (isalnum (c)) { g_string_append_c (temp, c); } else if (c == '_') { g_string_append_c (temp, '_'); g_string_append_c (temp, '_'); } else { g_string_append_c (temp, '_'); g_string_append_printf (temp, "%x", (int)c); } } temps = g_string_free (temp, FALSE); /* Include the length to avoid different length type names aliasing each other */ g_string_append_printf (s, "cl%x_%s_", strlen (temps), temps); g_free (temps); return TRUE; } } return TRUE; } static gboolean append_mangled_signature (GString *s, MonoMethodSignature *sig) { int i; gboolean supported; supported = append_mangled_type (s, sig->ret); if (!supported) return FALSE; if (sig->hasthis) g_string_append_printf (s, "this_"); for (i = 0; i < sig->param_count; ++i) { supported = append_mangled_type (s, sig->params [i]); if (!supported) return FALSE; } return TRUE; } static void append_mangled_wrapper_type (GString *s, guint32 wrapper_type) { const char *label; switch (wrapper_type) { case MONO_WRAPPER_REMOTING_INVOKE: label = "remoting_invoke"; break; case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: label = "remoting_invoke_check"; break; case MONO_WRAPPER_XDOMAIN_INVOKE: label = "remoting_invoke_xdomain"; break; case MONO_WRAPPER_PROXY_ISINST: label = "proxy_isinst"; break; case MONO_WRAPPER_LDFLD: label = "ldfld"; break; case MONO_WRAPPER_LDFLDA: label = "ldflda"; break; case MONO_WRAPPER_STFLD: label = "stfld"; break; case MONO_WRAPPER_ALLOC: label = "alloc"; break; case MONO_WRAPPER_WRITE_BARRIER: label = "write_barrier"; break; case MONO_WRAPPER_STELEMREF: label = "stelemref"; break; case MONO_WRAPPER_UNKNOWN: label = "unknown"; break; case MONO_WRAPPER_MANAGED_TO_NATIVE: label = "man2native"; break; case MONO_WRAPPER_SYNCHRONIZED: label = "synch"; break; case MONO_WRAPPER_MANAGED_TO_MANAGED: label = "man2man"; break; case MONO_WRAPPER_CASTCLASS: label = "castclass"; break; case MONO_WRAPPER_RUNTIME_INVOKE: label = "run_invoke"; break; case MONO_WRAPPER_DELEGATE_INVOKE: label = "del_inv"; break; case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE: label = "del_beg_inv"; break; case MONO_WRAPPER_DELEGATE_END_INVOKE: label = "del_end_inv"; break; case MONO_WRAPPER_NATIVE_TO_MANAGED: label = "native2man"; break; default: g_assert_not_reached (); } g_string_append_printf (s, "%s_", label); } static void append_mangled_wrapper_subtype (GString *s, WrapperSubtype subtype) { const char *label; switch (subtype) { case WRAPPER_SUBTYPE_NONE: return; case WRAPPER_SUBTYPE_ELEMENT_ADDR: label = "elem_addr"; break; case WRAPPER_SUBTYPE_STRING_CTOR: label = "str_ctor"; break; case WRAPPER_SUBTYPE_VIRTUAL_STELEMREF: label = "virt_stelem"; break; case WRAPPER_SUBTYPE_FAST_MONITOR_ENTER: label = "fast_mon_enter"; break; case WRAPPER_SUBTYPE_FAST_MONITOR_ENTER_V4: label = "fast_mon_enter_4"; break; case WRAPPER_SUBTYPE_FAST_MONITOR_EXIT: label = "fast_monitor_exit"; break; case WRAPPER_SUBTYPE_PTR_TO_STRUCTURE: label = "ptr2struct"; break; case WRAPPER_SUBTYPE_STRUCTURE_TO_PTR: label = "struct2ptr"; break; case WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE: label = "castclass_w_cache"; break; case WRAPPER_SUBTYPE_ISINST_WITH_CACHE: label = "isinst_w_cache"; break; case WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL: label = "run_inv_norm"; break; case WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC: label = "run_inv_dyn"; break; case WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT: label = "run_inv_dir"; break; case WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL: label = "run_inv_vir"; break; case WRAPPER_SUBTYPE_ICALL_WRAPPER: label = "icall"; break; case WRAPPER_SUBTYPE_NATIVE_FUNC_AOT: label = "native_func_aot"; break; case WRAPPER_SUBTYPE_PINVOKE: label = "pinvoke"; break; case WRAPPER_SUBTYPE_SYNCHRONIZED_INNER: label = "synch_inner"; break; case WRAPPER_SUBTYPE_GSHAREDVT_IN: label = "gshared_in"; break; case WRAPPER_SUBTYPE_GSHAREDVT_OUT: label = "gshared_out"; break; case WRAPPER_SUBTYPE_ARRAY_ACCESSOR: label = "array_acc"; break; case WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER: label = "generic_arry_help"; break; case WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL: label = "del_inv_virt"; break; case WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND: label = "del_inv_bound"; break; case WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG: label = "gsharedvt_in_sig"; break; case WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG: label = "gsharedvt_out_sig"; break; default: g_assert_not_reached (); } g_string_append_printf (s, "%s_", label); } static char * sanitize_mangled_string (const char *input) { GString *s = g_string_new (""); for (int i=0; input [i] != '\0'; i++) { char c = input [i]; switch (c) { case '.': g_string_append (s, "_dot_"); break; case ' ': g_string_append (s, "_"); break; case '`': g_string_append (s, "_bt_"); break; case '<': g_string_append (s, "_le_"); break; case '>': g_string_append (s, "_gt_"); break; case '/': g_string_append (s, "_sl_"); break; case '[': g_string_append (s, "_lbrack_"); break; case ']': g_string_append (s, "_rbrack_"); break; case '(': g_string_append (s, "_lparen_"); break; case '-': g_string_append (s, "_dash_"); break; case ')': g_string_append (s, "_rparen_"); break; case ',': g_string_append (s, "_comma_"); break; default: g_string_append_c (s, c); } } return g_string_free (s, FALSE); } static gboolean append_mangled_klass (GString *s, MonoClass *klass) { char *klass_desc = mono_class_full_name (klass); g_string_append_printf (s, "_%s_%s_", klass->name_space, klass_desc); g_free (klass_desc); // Success return TRUE; } static gboolean append_mangled_method (GString *s, MonoMethod *method); static gboolean append_mangled_wrapper (GString *s, MonoMethod *method) { gboolean success = TRUE; WrapperInfo *info = mono_marshal_get_wrapper_info (method); g_string_append_printf (s, "wrapper_"); append_mangled_wrapper_type (s, method->wrapper_type); switch (method->wrapper_type) { case MONO_WRAPPER_REMOTING_INVOKE: case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: case MONO_WRAPPER_XDOMAIN_INVOKE: { MonoMethod *m = mono_marshal_method_from_wrapper (method); g_assert (m); success = success && append_mangled_method (s, m); break; } case MONO_WRAPPER_PROXY_ISINST: case MONO_WRAPPER_LDFLD: case MONO_WRAPPER_LDFLDA: case MONO_WRAPPER_STFLD: { g_assert (info); success = success && append_mangled_klass (s, info->d.proxy.klass); break; } case MONO_WRAPPER_ALLOC: { /* The GC name is saved once in MonoAotFileInfo */ g_assert (info->d.alloc.alloc_type != -1); g_string_append_printf (s, "%d_", info->d.alloc.alloc_type); // SlowAlloc, etc g_string_append_printf (s, "%s_", method->name); break; } case MONO_WRAPPER_WRITE_BARRIER: { break; } case MONO_WRAPPER_STELEMREF: { append_mangled_wrapper_subtype (s, info->subtype); if (info->subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF) g_string_append_printf (s, "%d", info->d.virtual_stelemref.kind); break; } case MONO_WRAPPER_UNKNOWN: { append_mangled_wrapper_subtype (s, info->subtype); if (info->subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE || info->subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR) success = success && append_mangled_klass (s, method->klass); else if (info->subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER) success = success && append_mangled_method (s, info->d.synchronized_inner.method); else if (info->subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) success = success && append_mangled_method (s, info->d.array_accessor.method); else if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG) append_mangled_signature (s, info->d.gsharedvt.sig); else if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG) append_mangled_signature (s, info->d.gsharedvt.sig); break; } case MONO_WRAPPER_MANAGED_TO_NATIVE: { append_mangled_wrapper_subtype (s, info->subtype); if (info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) { g_string_append_printf (s, "%s", method->name); } else if (info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT) { success = success && append_mangled_method (s, info->d.managed_to_native.method); } else { g_assert (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_PINVOKE); success = success && append_mangled_method (s, info->d.managed_to_native.method); } break; } case MONO_WRAPPER_SYNCHRONIZED: { MonoMethod *m; m = mono_marshal_method_from_wrapper (method); g_assert (m); g_assert (m != method); success = success && append_mangled_method (s, m); break; } case MONO_WRAPPER_MANAGED_TO_MANAGED: { append_mangled_wrapper_subtype (s, info->subtype); if (info->subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) { g_string_append_printf (s, "%d_", info->d.element_addr.rank); g_string_append_printf (s, "%d_", info->d.element_addr.elem_size); } else if (info->subtype == WRAPPER_SUBTYPE_STRING_CTOR) { success = success && append_mangled_method (s, info->d.string_ctor.method); } else { g_assert_not_reached (); } break; } case MONO_WRAPPER_CASTCLASS: { append_mangled_wrapper_subtype (s, info->subtype); break; } case MONO_WRAPPER_RUNTIME_INVOKE: { append_mangled_wrapper_subtype (s, info->subtype); if (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL) success = success && append_mangled_method (s, info->d.runtime_invoke.method); else if (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL) success = success && append_mangled_signature (s, info->d.runtime_invoke.sig); break; } case MONO_WRAPPER_DELEGATE_INVOKE: case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE: case MONO_WRAPPER_DELEGATE_END_INVOKE: { if (method->is_inflated) { /* These wrappers are identified by their class */ g_string_append_printf (s, "i_"); success = success && append_mangled_klass (s, method->klass); } else { WrapperInfo *info = mono_marshal_get_wrapper_info (method); g_string_append_printf (s, "u_"); if (method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) append_mangled_wrapper_subtype (s, info->subtype); g_string_append_printf (s, "u_sigstart"); } break; } case MONO_WRAPPER_NATIVE_TO_MANAGED: { g_assert (info); success = success && append_mangled_method (s, info->d.native_to_managed.method); success = success && append_mangled_klass (s, method->klass); break; } default: g_assert_not_reached (); } return success && append_mangled_signature (s, mono_method_signature (method)); } static void append_mangled_context (GString *str, MonoGenericContext *context) { GString *res = g_string_new (""); g_string_append_printf (res, "gens_"); g_string_append (res, "00"); gboolean good = context->class_inst && context->class_inst->type_argc > 0; good = good || (context->method_inst && context->method_inst->type_argc > 0); g_assert (good); if (context->class_inst) mono_ginst_get_desc (res, context->class_inst); if (context->method_inst) { if (context->class_inst) g_string_append (res, "11"); mono_ginst_get_desc (res, context->method_inst); } g_string_append_printf (str, "gens_%s", res->str); } static gboolean append_mangled_method (GString *s, MonoMethod *method) { if (method->wrapper_type) return append_mangled_wrapper (s, method); g_string_append_printf (s, "%s_", method->klass->image->assembly->aname.name); if (method->is_inflated) { g_string_append_printf (s, "inflated_"); MonoMethodInflated *imethod = (MonoMethodInflated*) method; g_assert (imethod->context.class_inst != NULL || imethod->context.method_inst != NULL); append_mangled_context (s, &imethod->context); g_string_append_printf (s, "_declared_by_"); append_mangled_method (s, imethod->declaring); } else if (method->is_generic) { g_string_append_printf (s, "generic_"); append_mangled_klass (s, method->klass); g_string_append_printf (s, "_%s_", method->name); MonoGenericContainer *container = mono_method_get_generic_container (method); g_string_append_printf (s, "_%s"); append_mangled_context (s, &container->context); return append_mangled_signature (s, mono_method_signature (method)); } else { g_string_append_printf (s, "_"); append_mangled_klass (s, method->klass); g_string_append_printf (s, "_%s_", method->name); if (!append_mangled_signature (s, mono_method_signature (method))) { g_string_free (s, TRUE); return FALSE; } } return TRUE; } /* * mono_aot_get_mangled_method_name: * * Return a unique mangled name for METHOD, or NULL. */ char* mono_aot_get_mangled_method_name (MonoMethod *method) { GString *s = g_string_new ("aot_"); if (!append_mangled_method (s, method)) { g_string_free (s, TRUE); return NULL; } else { char *out = g_string_free (s, FALSE); // Scrub method and class names char *cleaned = sanitize_mangled_string (out); g_free (out); return cleaned; } } gboolean mono_aot_is_direct_callable (MonoJumpInfo *patch_info) { return is_direct_callable (llvm_acfg, NULL, patch_info); } void mono_aot_mark_unused_llvm_plt_entry (MonoJumpInfo *patch_info) { MonoPltEntry *plt_entry; plt_entry = get_plt_entry (llvm_acfg, patch_info); plt_entry->llvm_used = FALSE; } char* mono_aot_get_direct_call_symbol (MonoJumpInfoType type, gconstpointer data) { const char *sym = NULL; if (llvm_acfg->aot_opts.direct_icalls) { if (type == MONO_PATCH_INFO_JIT_ICALL_ADDR) { /* Call to a C function implementing a jit icall */ sym = mono_lookup_jit_icall_symbol ((const char *)data); } else if (type == MONO_PATCH_INFO_ICALL_ADDR_CALL) { MonoMethod *method = (MonoMethod *)data; if (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) sym = mono_lookup_icall_symbol (method); else if (llvm_acfg->aot_opts.direct_pinvoke) sym = get_pinvoke_import (llvm_acfg, method); } if (sym) return g_strdup (sym); } return NULL; } char* mono_aot_get_plt_symbol (MonoJumpInfoType type, gconstpointer data) { MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc (llvm_acfg->mempool, sizeof (MonoJumpInfo)); MonoPltEntry *plt_entry; const char *sym = NULL; ji->type = type; ji->data.target = data; if (!can_encode_patch (llvm_acfg, ji)) return NULL; if (llvm_acfg->aot_opts.direct_icalls) { if (type == MONO_PATCH_INFO_JIT_ICALL_ADDR) { /* Call to a C function implementing a jit icall */ sym = mono_lookup_jit_icall_symbol ((const char *)data); } else if (type == MONO_PATCH_INFO_ICALL_ADDR_CALL) { MonoMethod *method = (MonoMethod *)data; if (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) sym = mono_lookup_icall_symbol (method); } if (sym) return g_strdup (sym); } plt_entry = get_plt_entry (llvm_acfg, ji); plt_entry->llvm_used = TRUE; #if defined(TARGET_MACH) return g_strdup_printf (plt_entry->llvm_symbol + strlen (llvm_acfg->llvm_label_prefix)); #else return g_strdup_printf (plt_entry->llvm_symbol); #endif } int mono_aot_get_method_index (MonoMethod *method) { g_assert (llvm_acfg); return get_method_index (llvm_acfg, method); } MonoJumpInfo* mono_aot_patch_info_dup (MonoJumpInfo* ji) { MonoJumpInfo *res; mono_acfg_lock (llvm_acfg); res = mono_patch_info_dup_mp (llvm_acfg->mempool, ji); mono_acfg_unlock (llvm_acfg); return res; } static int execute_system (const char * command) { int status = 0; #if defined(HOST_WIN32) // We need an extra set of quotes around the whole command to properly handle commands // with spaces since internally the command is called through "cmd /c. char * quoted_command = g_strdup_printf ("\"%s\"", command); int size = MultiByteToWideChar (CP_UTF8, 0 , quoted_command , -1, NULL , 0); wchar_t* wstr = g_malloc (sizeof (wchar_t) * size); MultiByteToWideChar (CP_UTF8, 0, quoted_command, -1, wstr , size); status = _wsystem (wstr); g_free (wstr); g_free (quoted_command); #elif defined (HAVE_SYSTEM) status = system (command); #else g_assert_not_reached (); #endif return status; } #ifdef ENABLE_LLVM /* * emit_llvm_file: * * Emit the LLVM code into an LLVM bytecode file, and compile it using the LLVM * tools. */ static gboolean emit_llvm_file (MonoAotCompile *acfg) { char *command, *opts, *tempbc, *optbc, *output_fname; if (acfg->aot_opts.llvm_only && acfg->aot_opts.asm_only) { tempbc = g_strdup_printf ("%s.bc", acfg->tmpbasename); optbc = g_strdup (acfg->aot_opts.llvm_outfile); } else { tempbc = g_strdup_printf ("%s.bc", acfg->tmpbasename); optbc = g_strdup_printf ("%s.opt.bc", acfg->tmpbasename); } mono_llvm_emit_aot_module (tempbc, g_path_get_basename (acfg->image->name)); /* * FIXME: Experiment with adding optimizations, the -std-compile-opts set takes * a lot of time, and doesn't seem to save much space. * The following optimizations cannot be enabled: * - 'tailcallelim' * - 'jump-threading' changes our blockaddress references to int constants. * - 'basiccg' fails because it contains: * if (CS && !isa(II)) { * and isa is false for invokes to intrinsics (iltests.exe). * - 'prune-eh' and 'functionattrs' depend on 'basiccg'. * The opt list below was produced by taking the output of: * llvm-as < /dev/null | opt -O2 -disable-output -debug-pass=Arguments * then removing tailcallelim + the global opts. * strip-dead-prototypes deletes unused intrinsics definitions. */ /* The dse pass is disabled because of #13734 and #17616 */ /* * The dse bug is in DeadStoreElimination.cpp:isOverwrite (): * // If we have no DataLayout information around, then the size of the store * // is inferrable from the pointee type. If they are the same type, then * // we know that the store is safe. * if (AA.getDataLayout() == 0 && * Later.Ptr->getType() == Earlier.Ptr->getType()) { * return OverwriteComplete; * Here, if 'Earlier' refers to a memset, and Later has no size info, it mistakenly thinks the memset is redundant. */ if (acfg->aot_opts.llvm_only) // FIXME: This doesn't work yet opts = g_strdup (""); else #if LLVM_API_VERSION > 100 opts = g_strdup ("-O2 -disable-tail-calls"); #else opts = g_strdup ("-targetlibinfo -no-aa -basicaa -notti -instcombine -simplifycfg -inline-cost -inline -sroa -domtree -early-cse -lazy-value-info -correlated-propagation -simplifycfg -instcombine -simplifycfg -reassociate -domtree -loops -loop-simplify -lcssa -loop-rotate -licm -lcssa -loop-unswitch -instcombine -scalar-evolution -loop-simplify -lcssa -indvars -loop-idiom -loop-deletion -loop-unroll -memdep -gvn -memdep -memcpyopt -sccp -instcombine -lazy-value-info -correlated-propagation -domtree -memdep -adce -simplifycfg -instcombine -strip-dead-prototypes -domtree -verify"); #endif command = g_strdup_printf ("\"%sopt\" -f %s -o \"%s\" \"%s\"", acfg->aot_opts.llvm_path, opts, optbc, tempbc); aot_printf (acfg, "Executing opt: %s\n", command); if (execute_system (command) != 0) return FALSE; g_free (opts); if (acfg->aot_opts.llvm_only && acfg->aot_opts.asm_only) /* Nothing else to do */ return TRUE; if (acfg->aot_opts.llvm_only) { /* Use the stock clang from xcode */ // FIXME: arch command = g_strdup_printf ("clang++ -fexceptions -march=x86-64 -fpic -msse -msse2 -msse3 -msse4 -O2 -fno-optimize-sibling-calls -Wno-override-module -c -o \"%s\" \"%s.opt.bc\"", acfg->llvm_ofile, acfg->tmpbasename); aot_printf (acfg, "Executing clang: %s\n", command); if (execute_system (command) != 0) return FALSE; return TRUE; } if (!acfg->llc_args) acfg->llc_args = g_string_new (""); /* Verbose asm slows down llc greatly */ g_string_append (acfg->llc_args, " -asm-verbose=false"); if (acfg->aot_opts.mtriple) g_string_append_printf (acfg->llc_args, " -mtriple=%s", acfg->aot_opts.mtriple); g_string_append (acfg->llc_args, " -disable-gnu-eh-frame -enable-mono-eh-frame"); g_string_append_printf (acfg->llc_args, " -mono-eh-frame-symbol=%s%s", acfg->user_symbol_prefix, acfg->llvm_eh_frame_symbol); #if LLVM_API_VERSION > 100 g_string_append_printf (acfg->llc_args, " -disable-tail-calls"); #endif #if ( defined(TARGET_MACH) && defined(TARGET_ARM) ) || defined(TARGET_ORBIS) /* ios requires PIC code now */ g_string_append_printf (acfg->llc_args, " -relocation-model=pic"); #else if (llvm_acfg->aot_opts.static_link) g_string_append_printf (acfg->llc_args, " -relocation-model=static"); else g_string_append_printf (acfg->llc_args, " -relocation-model=pic"); #endif if (acfg->llvm_owriter) { /* Emit an object file directly */ output_fname = g_strdup_printf ("%s", acfg->llvm_ofile); g_string_append_printf (acfg->llc_args, " -filetype=obj"); } else { output_fname = g_strdup_printf ("%s", acfg->llvm_sfile); } command = g_strdup_printf ("\"%sllc\" %s -o \"%s\" \"%s.opt.bc\"", acfg->aot_opts.llvm_path, acfg->llc_args->str, output_fname, acfg->tmpbasename); g_free (output_fname); aot_printf (acfg, "Executing llc: %s\n", command); if (execute_system (command) != 0) return FALSE; return TRUE; } #endif static void emit_code (MonoAotCompile *acfg) { int oindex, i, prev_index; gboolean saved_unbox_info = FALSE; char symbol [MAX_SYMBOL_SIZE]; if (acfg->aot_opts.llvm_only) return; #if defined(TARGET_POWERPC64) sprintf (symbol, ".Lgot_addr"); emit_section_change (acfg, ".text", 0); emit_alignment (acfg, 8); emit_label (acfg, symbol); emit_pointer (acfg, acfg->got_symbol); #endif /* * This global symbol is used to compute the address of each method using the * code_offsets array. It is also used to compute the memory ranges occupied by * AOT code, so it must be equal to the address of the first emitted method. */ emit_section_change (acfg, ".text", 0); emit_alignment_code (acfg, 8); emit_info_symbol (acfg, "jit_code_start"); /* * Emit some padding so the local symbol for the first method doesn't have the * same address as 'methods'. */ emit_padding (acfg, 16); for (oindex = 0; oindex < acfg->method_order->len; ++oindex) { MonoCompile *cfg; MonoMethod *method; i = GPOINTER_TO_UINT (g_ptr_array_index (acfg->method_order, oindex)); cfg = acfg->cfgs [i]; if (!cfg) continue; method = cfg->orig_method; /* Emit unbox trampoline */ if (mono_aot_mode_is_full (&acfg->aot_opts) && cfg->orig_method->klass->valuetype) { sprintf (symbol, "ut_%d", get_method_index (acfg, method)); emit_section_change (acfg, ".text", 0); if (acfg->thumb_mixed && cfg->compile_llvm) { emit_set_thumb_mode (acfg); fprintf (acfg->fp, "\n.thumb_func\n"); } emit_label (acfg, symbol); arch_emit_unbox_trampoline (acfg, cfg, cfg->orig_method, cfg->asm_symbol); if (acfg->thumb_mixed && cfg->compile_llvm) emit_set_arm_mode (acfg); if (!saved_unbox_info) { char user_symbol [128]; GSList *unwind_ops; sprintf (user_symbol, "%sunbox_trampoline_p", acfg->user_symbol_prefix); emit_label (acfg, "ut_end"); unwind_ops = mono_unwind_get_cie_program (); save_unwind_info (acfg, user_symbol, unwind_ops); mono_free_unwind_info (unwind_ops); /* Save the unbox trampoline size */ emit_symbol_diff (acfg, "ut_end", symbol, 0); saved_unbox_info = TRUE; } } if (cfg->compile_llvm) acfg->stats.llvm_count ++; else emit_method_code (acfg, cfg); } emit_section_change (acfg, ".text", 0); emit_alignment_code (acfg, 8); emit_info_symbol (acfg, "jit_code_end"); /* To distinguish it from the next symbol */ emit_padding (acfg, 4); /* * Add .no_dead_strip directives for all LLVM methods to prevent the OSX linker * from optimizing them away, since it doesn't see that code_offsets references them. * JITted methods don't need this since they are referenced using assembler local * symbols. * FIXME: This is why write-symbols doesn't work on OSX ? */ if (acfg->llvm && acfg->need_no_dead_strip) { fprintf (acfg->fp, "\n"); for (i = 0; i < acfg->nmethods; ++i) { if (acfg->cfgs [i] && acfg->cfgs [i]->compile_llvm) fprintf (acfg->fp, ".no_dead_strip %s\n", acfg->cfgs [i]->asm_symbol); } } /* * To work around linker issues, we emit a table of branches, and disassemble them at runtime. * This is PIE code, and the linker can update it if needed. */ sprintf (symbol, "method_addresses"); emit_section_change (acfg, ".text", 1); emit_alignment_code (acfg, 8); emit_info_symbol (acfg, symbol); if (acfg->aot_opts.write_symbols) emit_local_symbol (acfg, symbol, "method_addresses_end", TRUE); emit_unset_mode (acfg); if (acfg->need_no_dead_strip) fprintf (acfg->fp, " .no_dead_strip %s\n", symbol); for (i = 0; i < acfg->nmethods; ++i) { #ifdef MONO_ARCH_AOT_SUPPORTED int call_size; if (acfg->cfgs [i]) { arch_emit_direct_call (acfg, acfg->cfgs [i]->asm_symbol, FALSE, acfg->thumb_mixed && acfg->cfgs [i]->compile_llvm, NULL, &call_size); } else { arch_emit_direct_call (acfg, symbol, FALSE, FALSE, NULL, &call_size); } #endif } sprintf (symbol, "method_addresses_end"); emit_label (acfg, symbol); emit_line (acfg); /* Emit a sorted table mapping methods to the index of their unbox trampolines */ sprintf (symbol, "unbox_trampolines"); emit_section_change (acfg, RODATA_SECT, 0); emit_alignment (acfg, 8); emit_info_symbol (acfg, symbol); prev_index = -1; for (i = 0; i < acfg->nmethods; ++i) { MonoCompile *cfg; MonoMethod *method; int index; cfg = acfg->cfgs [i]; if (!cfg) continue; method = cfg->orig_method; if (mono_aot_mode_is_full (&acfg->aot_opts) && cfg->orig_method->klass->valuetype) { index = get_method_index (acfg, method); emit_int32 (acfg, index); /* Make sure the table is sorted by index */ g_assert (index > prev_index); prev_index = index; } } sprintf (symbol, "unbox_trampolines_end"); emit_info_symbol (acfg, symbol); emit_int32 (acfg, 0); /* Emit a separate table with the trampoline addresses/offsets */ sprintf (symbol, "unbox_trampoline_addresses"); emit_section_change (acfg, ".text", 0); emit_alignment_code (acfg, 8); emit_info_symbol (acfg, symbol); for (i = 0; i < acfg->nmethods; ++i) { MonoCompile *cfg; MonoMethod *method; int index; cfg = acfg->cfgs [i]; if (!cfg) continue; method = cfg->orig_method; if (mono_aot_mode_is_full (&acfg->aot_opts) && cfg->orig_method->klass->valuetype) { #ifdef MONO_ARCH_AOT_SUPPORTED int call_size; index = get_method_index (acfg, method); sprintf (symbol, "ut_%d", index); arch_emit_direct_call (acfg, symbol, FALSE, acfg->thumb_mixed && cfg->compile_llvm, NULL, &call_size); #endif } } emit_int32 (acfg, 0); } static void emit_info (MonoAotCompile *acfg) { int oindex, i; gint32 *offsets; offsets = g_new0 (gint32, acfg->nmethods); for (oindex = 0; oindex < acfg->method_order->len; ++oindex) { i = GPOINTER_TO_UINT (g_ptr_array_index (acfg->method_order, oindex)); if (acfg->cfgs [i]) { emit_method_info (acfg, acfg->cfgs [i]); offsets [i] = acfg->cfgs [i]->method_info_offset; } else { offsets [i] = 0; } } acfg->stats.offsets_size += emit_offset_table (acfg, "method_info_offsets", MONO_AOT_TABLE_METHOD_INFO_OFFSETS, acfg->nmethods, 10, offsets); g_free (offsets); } #endif /* #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT) */ #define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k)))) #define mix(a,b,c) { \ a -= c; a ^= rot(c, 4); c += b; \ b -= a; b ^= rot(a, 6); a += c; \ c -= b; c ^= rot(b, 8); b += a; \ a -= c; a ^= rot(c,16); c += b; \ b -= a; b ^= rot(a,19); a += c; \ c -= b; c ^= rot(b, 4); b += a; \ } #define final(a,b,c) { \ c ^= b; c -= rot(b,14); \ a ^= c; a -= rot(c,11); \ b ^= a; b -= rot(a,25); \ c ^= b; c -= rot(b,16); \ a ^= c; a -= rot(c,4); \ b ^= a; b -= rot(a,14); \ c ^= b; c -= rot(b,24); \ } static guint mono_aot_type_hash (MonoType *t1) { guint hash = t1->type; hash |= t1->byref << 6; /* do not collide with t1->type values */ switch (t1->type) { case MONO_TYPE_VALUETYPE: case MONO_TYPE_CLASS: case MONO_TYPE_SZARRAY: /* check if the distribution is good enough */ return ((hash << 5) - hash) ^ mono_metadata_str_hash (t1->data.klass->name); case MONO_TYPE_PTR: return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type); case MONO_TYPE_ARRAY: return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg); case MONO_TYPE_GENERICINST: return ((hash << 5) - hash) ^ 0; default: return hash; } } /* * mono_aot_method_hash: * * Return a hash code for methods which only depends on metadata. */ guint32 mono_aot_method_hash (MonoMethod *method) { MonoMethodSignature *sig; MonoClass *klass; int i, hindex; int hashes_count; guint32 *hashes_start, *hashes; guint32 a, b, c; MonoGenericInst *class_ginst = NULL; MonoGenericInst *ginst = NULL; /* Similar to the hash in mono_method_get_imt_slot () */ sig = mono_method_signature (method); if (mono_class_is_ginst (method->klass)) class_ginst = mono_class_get_generic_class (method->klass)->context.class_inst; if (method->is_inflated) ginst = ((MonoMethodInflated*)method)->context.method_inst; hashes_count = sig->param_count + 5 + (class_ginst ? class_ginst->type_argc : 0) + (ginst ? ginst->type_argc : 0); hashes_start = (guint32 *)g_malloc0 (hashes_count * sizeof (guint32)); hashes = hashes_start; /* Some wrappers are assigned to random classes */ if (!method->wrapper_type || method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK) klass = method->klass; else klass = mono_defaults.object_class; if (!method->wrapper_type) { char *full_name; if (mono_class_is_ginst (klass)) full_name = mono_type_full_name (&mono_class_get_generic_class (klass)->container_class->byval_arg); else full_name = mono_type_full_name (&klass->byval_arg); hashes [0] = mono_metadata_str_hash (full_name); hashes [1] = 0; g_free (full_name); } else { hashes [0] = mono_metadata_str_hash (klass->name); hashes [1] = mono_metadata_str_hash (klass->name_space); } if (method->wrapper_type == MONO_WRAPPER_STFLD || method->wrapper_type == MONO_WRAPPER_LDFLD || method->wrapper_type == MONO_WRAPPER_LDFLDA) /* The method name includes a stringified pointer */ hashes [2] = 0; else hashes [2] = mono_metadata_str_hash (method->name); hashes [3] = method->wrapper_type; hashes [4] = mono_aot_type_hash (sig->ret); hindex = 5; for (i = 0; i < sig->param_count; i++) { hashes [hindex ++] = mono_aot_type_hash (sig->params [i]); } if (class_ginst) { for (i = 0; i < class_ginst->type_argc; ++i) hashes [hindex ++] = mono_aot_type_hash (class_ginst->type_argv [i]); } if (ginst) { for (i = 0; i < ginst->type_argc; ++i) hashes [hindex ++] = mono_aot_type_hash (ginst->type_argv [i]); } g_assert (hindex == hashes_count); /* Setup internal state */ a = b = c = 0xdeadbeef + (((guint32)hashes_count)<<2); /* Handle most of the hashes */ while (hashes_count > 3) { a += hashes [0]; b += hashes [1]; c += hashes [2]; mix (a,b,c); hashes_count -= 3; hashes += 3; } /* Handle the last 3 hashes (all the case statements fall through) */ switch (hashes_count) { case 3 : c += hashes [2]; case 2 : b += hashes [1]; case 1 : a += hashes [0]; final (a,b,c); case 0: /* nothing left to add */ break; } g_free (hashes_start); return c; } #undef rot #undef mix #undef final /* * mono_aot_get_array_helper_from_wrapper; * * Get the helper method in Array called by an array wrapper method. */ MonoMethod* mono_aot_get_array_helper_from_wrapper (MonoMethod *method) { MonoMethod *m; const char *prefix; MonoGenericContext ctx; MonoType *args [16]; char *mname, *iname, *s, *s2, *helper_name = NULL; prefix = "System.Collections.Generic"; s = g_strdup_printf ("%s", method->name + strlen (prefix) + 1); s2 = strstr (s, "`1."); g_assert (s2); s2 [0] = '\0'; iname = s; mname = s2 + 3; //printf ("X: %s %s\n", iname, mname); if (!strcmp (iname, "IList")) helper_name = g_strdup_printf ("InternalArray__%s", mname); else helper_name = g_strdup_printf ("InternalArray__%s_%s", iname, mname); m = mono_class_get_method_from_name (mono_defaults.array_class, helper_name, mono_method_signature (method)->param_count); g_assert (m); g_free (helper_name); g_free (s); if (m->is_generic) { MonoError error; memset (&ctx, 0, sizeof (ctx)); args [0] = &method->klass->element_class->byval_arg; ctx.method_inst = mono_metadata_get_generic_inst (1, args); m = mono_class_inflate_generic_method_checked (m, &ctx, &error); g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */ } return m; } #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT) typedef struct HashEntry { guint32 key, value, index; struct HashEntry *next; } HashEntry; /* * emit_extra_methods: * * Emit methods which are not in the METHOD table, like wrappers. */ static void emit_extra_methods (MonoAotCompile *acfg) { int i, table_size, buf_size; guint8 *p, *buf; guint32 *info_offsets; guint32 hash; GPtrArray *table; HashEntry *entry, *new_entry; int nmethods, max_chain_length; int *chain_lengths; info_offsets = g_new0 (guint32, acfg->extra_methods->len); /* Emit method info */ nmethods = 0; for (i = 0; i < acfg->extra_methods->len; ++i) { MonoMethod *method = (MonoMethod *)g_ptr_array_index (acfg->extra_methods, i); MonoCompile *cfg = (MonoCompile *)g_hash_table_lookup (acfg->method_to_cfg, method); if (!cfg) continue; buf_size = 10240; p = buf = (guint8 *)g_malloc (buf_size); nmethods ++; method = cfg->method_to_register; encode_method_ref (acfg, method, p, &p); g_assert ((p - buf) < buf_size); info_offsets [i] = add_to_blob (acfg, buf, p - buf); g_free (buf); } /* * Construct a chained hash table for mapping indexes in extra_method_info to * method indexes. */ table_size = g_spaced_primes_closest ((int)(nmethods * 1.5)); table = g_ptr_array_sized_new (table_size); for (i = 0; i < table_size; ++i) g_ptr_array_add (table, NULL); chain_lengths = g_new0 (int, table_size); max_chain_length = 0; for (i = 0; i < acfg->extra_methods->len; ++i) { MonoMethod *method = (MonoMethod *)g_ptr_array_index (acfg->extra_methods, i); MonoCompile *cfg = (MonoCompile *)g_hash_table_lookup (acfg->method_to_cfg, method); guint32 key, value; if (!cfg) continue; key = info_offsets [i]; value = get_method_index (acfg, method); hash = mono_aot_method_hash (method) % table_size; //printf ("X: %s %x\n", mono_method_get_full_name (method), mono_aot_method_hash (method)); chain_lengths [hash] ++; max_chain_length = MAX (max_chain_length, chain_lengths [hash]); new_entry = (HashEntry *)mono_mempool_alloc0 (acfg->mempool, sizeof (HashEntry)); new_entry->key = key; new_entry->value = value; entry = (HashEntry *)g_ptr_array_index (table, hash); if (entry == NULL) { new_entry->index = hash; g_ptr_array_index (table, hash) = new_entry; } else { while (entry->next) entry = entry->next; entry->next = new_entry; new_entry->index = table->len; g_ptr_array_add (table, new_entry); } } g_free (chain_lengths); //printf ("MAX: %d\n", max_chain_length); buf_size = table->len * 12 + 4; p = buf = (guint8 *)g_malloc (buf_size); encode_int (table_size, p, &p); for (i = 0; i < table->len; ++i) { HashEntry *entry = (HashEntry *)g_ptr_array_index (table, i); if (entry == NULL) { encode_int (0, p, &p); encode_int (0, p, &p); encode_int (0, p, &p); } else { //g_assert (entry->key > 0); encode_int (entry->key, p, &p); encode_int (entry->value, p, &p); if (entry->next) encode_int (entry->next->index, p, &p); else encode_int (0, p, &p); } } g_assert (p - buf <= buf_size); /* Emit the table */ emit_aot_data (acfg, MONO_AOT_TABLE_EXTRA_METHOD_TABLE, "extra_method_table", buf, p - buf); g_free (buf); /* * Emit a table reverse mapping method indexes to their index in extra_method_info. * This is used by mono_aot_find_jit_info (). */ buf_size = acfg->extra_methods->len * 8 + 4; p = buf = (guint8 *)g_malloc (buf_size); encode_int (acfg->extra_methods->len, p, &p); for (i = 0; i < acfg->extra_methods->len; ++i) { MonoMethod *method = (MonoMethod *)g_ptr_array_index (acfg->extra_methods, i); encode_int (get_method_index (acfg, method), p, &p); encode_int (info_offsets [i], p, &p); } emit_aot_data (acfg, MONO_AOT_TABLE_EXTRA_METHOD_INFO_OFFSETS, "extra_method_info_offsets", buf, p - buf); g_free (buf); g_free (info_offsets); g_ptr_array_free (table, TRUE); } static void generate_aotid (guint8* aotid) { gpointer rand_handle; MonoError error; mono_rand_open (); rand_handle = mono_rand_init (NULL, 0); mono_rand_try_get_bytes (&rand_handle, aotid, 16, &error); mono_error_assert_ok (&error); mono_rand_close (rand_handle); } static void emit_exception_info (MonoAotCompile *acfg) { int i; gint32 *offsets; SeqPointData sp_data; gboolean seq_points_to_file = FALSE; offsets = g_new0 (gint32, acfg->nmethods); for (i = 0; i < acfg->nmethods; ++i) { if (acfg->cfgs [i]) { MonoCompile *cfg = acfg->cfgs [i]; // By design aot-runtime decode_exception_debug_info is not able to load sequence point debug data from a file. // As it is not possible to load debug data from a file its is also not possible to store it in a file. gboolean method_seq_points_to_file = acfg->aot_opts.gen_msym_dir && cfg->gen_seq_points && !cfg->gen_sdb_seq_points; gboolean method_seq_points_to_binary = cfg->gen_seq_points && !method_seq_points_to_file; emit_exception_debug_info (acfg, cfg, method_seq_points_to_binary); offsets [i] = cfg->ex_info_offset; if (method_seq_points_to_file) { if (!seq_points_to_file) { mono_seq_point_data_init (&sp_data, acfg->nmethods); seq_points_to_file = TRUE; } mono_seq_point_data_add (&sp_data, cfg->method->token, cfg->method_index, cfg->seq_point_info); } } else { offsets [i] = 0; } } if (seq_points_to_file) { char *aotid = mono_guid_to_string_minimal (acfg->image->aotid); char *dir = g_build_filename (acfg->aot_opts.gen_msym_dir_path, aotid, NULL); char *image_basename = g_path_get_basename (acfg->image->name); char *aot_file = g_strdup_printf("%s%s", image_basename, SEQ_POINT_AOT_EXT); char *aot_file_path = g_build_filename (dir, aot_file, NULL); if (g_ensure_directory_exists (aot_file_path) == FALSE) { fprintf (stderr, "AOT : failed to create msym directory: %s\n", aot_file_path); exit (1); } mono_seq_point_data_write (&sp_data, aot_file_path); mono_seq_point_data_free (&sp_data); g_free (aotid); g_free (dir); g_free (image_basename); g_free (aot_file); g_free (aot_file_path); } acfg->stats.offsets_size += emit_offset_table (acfg, "ex_info_offsets", MONO_AOT_TABLE_EX_INFO_OFFSETS, acfg->nmethods, 10, offsets); g_free (offsets); } static void emit_unwind_info (MonoAotCompile *acfg) { int i; char symbol [128]; if (acfg->aot_opts.llvm_only) { g_assert (acfg->unwind_ops->len == 0); return; } /* * The unwind info contains a lot of duplicates so we emit each unique * entry once, and only store the offset from the start of the table in the * exception info. */ sprintf (symbol, "unwind_info"); emit_section_change (acfg, RODATA_SECT, 1); emit_alignment (acfg, 8); emit_info_symbol (acfg, symbol); for (i = 0; i < acfg->unwind_ops->len; ++i) { guint32 index = GPOINTER_TO_UINT (g_ptr_array_index (acfg->unwind_ops, i)); guint8 *unwind_info; guint32 unwind_info_len; guint8 buf [16]; guint8 *p; unwind_info = mono_get_cached_unwind_info (index, &unwind_info_len); p = buf; encode_value (unwind_info_len, p, &p); emit_bytes (acfg, buf, p - buf); emit_bytes (acfg, unwind_info, unwind_info_len); acfg->stats.unwind_info_size += (p - buf) + unwind_info_len; } } static void emit_class_info (MonoAotCompile *acfg) { int i; gint32 *offsets; offsets = g_new0 (gint32, acfg->image->tables [MONO_TABLE_TYPEDEF].rows); for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) offsets [i] = emit_klass_info (acfg, MONO_TOKEN_TYPE_DEF | (i + 1)); acfg->stats.offsets_size += emit_offset_table (acfg, "class_info_offsets", MONO_AOT_TABLE_CLASS_INFO_OFFSETS, acfg->image->tables [MONO_TABLE_TYPEDEF].rows, 10, offsets); g_free (offsets); } typedef struct ClassNameTableEntry { guint32 token, index; struct ClassNameTableEntry *next; } ClassNameTableEntry; static void emit_class_name_table (MonoAotCompile *acfg) { int i, table_size, buf_size; guint32 token, hash; MonoClass *klass; GPtrArray *table; char *full_name; guint8 *buf, *p; ClassNameTableEntry *entry, *new_entry; /* * Construct a chained hash table for mapping class names to typedef tokens. */ table_size = g_spaced_primes_closest ((int)(acfg->image->tables [MONO_TABLE_TYPEDEF].rows * 1.5)); table = g_ptr_array_sized_new (table_size); for (i = 0; i < table_size; ++i) g_ptr_array_add (table, NULL); for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) { MonoError error; token = MONO_TOKEN_TYPE_DEF | (i + 1); klass = mono_class_get_checked (acfg->image, token, &error); if (!klass) { mono_error_cleanup (&error); continue; } full_name = mono_type_get_name_full (mono_class_get_type (klass), MONO_TYPE_NAME_FORMAT_FULL_NAME); hash = mono_metadata_str_hash (full_name) % table_size; g_free (full_name); /* FIXME: Allocate from the mempool */ new_entry = g_new0 (ClassNameTableEntry, 1); new_entry->token = token; entry = (ClassNameTableEntry *)g_ptr_array_index (table, hash); if (entry == NULL) { new_entry->index = hash; g_ptr_array_index (table, hash) = new_entry; } else { while (entry->next) entry = entry->next; entry->next = new_entry; new_entry->index = table->len; g_ptr_array_add (table, new_entry); } } /* Emit the table */ buf_size = table->len * 4 + 4; p = buf = (guint8 *)g_malloc0 (buf_size); /* FIXME: Optimize memory usage */ g_assert (table_size < 65000); encode_int16 (table_size, p, &p); g_assert (table->len < 65000); for (i = 0; i < table->len; ++i) { ClassNameTableEntry *entry = (ClassNameTableEntry *)g_ptr_array_index (table, i); if (entry == NULL) { encode_int16 (0, p, &p); encode_int16 (0, p, &p); } else { encode_int16 (mono_metadata_token_index (entry->token), p, &p); if (entry->next) encode_int16 (entry->next->index, p, &p); else encode_int16 (0, p, &p); } g_free (entry); } g_assert (p - buf <= buf_size); g_ptr_array_free (table, TRUE); emit_aot_data (acfg, MONO_AOT_TABLE_CLASS_NAME, "class_name_table", buf, p - buf); g_free (buf); } static void emit_image_table (MonoAotCompile *acfg) { int i, buf_size; guint8 *buf, *p; /* * The image table is small but referenced in a lot of places. * So we emit it at once, and reference its elements by an index. */ buf_size = acfg->image_table->len * 28 + 4; for (i = 0; i < acfg->image_table->len; i++) { MonoImage *image = (MonoImage*)g_ptr_array_index (acfg->image_table, i); MonoAssemblyName *aname = &image->assembly->aname; buf_size += strlen (image->assembly_name) + strlen (image->guid) + (aname->culture ? strlen (aname->culture) : 1) + strlen ((char*)aname->public_key_token) + 4; } buf = p = (guint8 *)g_malloc0 (buf_size); encode_int (acfg->image_table->len, p, &p); for (i = 0; i < acfg->image_table->len; i++) { MonoImage *image = (MonoImage*)g_ptr_array_index (acfg->image_table, i); MonoAssemblyName *aname = &image->assembly->aname; /* FIXME: Support multi-module assemblies */ g_assert (image->assembly->image == image); encode_string (image->assembly_name, p, &p); encode_string (image->guid, p, &p); encode_string (aname->culture ? aname->culture : "", p, &p); encode_string ((const char*)aname->public_key_token, p, &p); while (GPOINTER_TO_UINT (p) % 8 != 0) p ++; encode_int (aname->flags, p, &p); encode_int (aname->major, p, &p); encode_int (aname->minor, p, &p); encode_int (aname->build, p, &p); encode_int (aname->revision, p, &p); } g_assert (p - buf <= buf_size); emit_aot_data (acfg, MONO_AOT_TABLE_IMAGE_TABLE, "image_table", buf, p - buf); g_free (buf); } static void emit_got_info (MonoAotCompile *acfg, gboolean llvm) { int i, first_plt_got_patch = 0, buf_size; guint8 *p, *buf; guint32 *got_info_offsets; GotInfo *info = llvm ? &acfg->llvm_got_info : &acfg->got_info; /* Add the patches needed by the PLT to the GOT */ if (!llvm) { acfg->plt_got_offset_base = acfg->got_offset; first_plt_got_patch = info->got_patches->len; for (i = 1; i < acfg->plt_offset; ++i) { MonoPltEntry *plt_entry = (MonoPltEntry *)g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i)); g_ptr_array_add (info->got_patches, plt_entry->ji); acfg->stats.got_slot_types [plt_entry->ji->type] ++; } acfg->got_offset += acfg->plt_offset; } /** * FIXME: * - optimize offsets table. * - reduce number of exported symbols. * - emit info for a klass only once. * - determine when a method uses a GOT slot which is guaranteed to be already * initialized. * - clean up and document the code. * - use String.Empty in class libs. */ /* Encode info required to decode shared GOT entries */ buf_size = info->got_patches->len * 128; p = buf = (guint8 *)mono_mempool_alloc (acfg->mempool, buf_size); got_info_offsets = (guint32 *)mono_mempool_alloc (acfg->mempool, info->got_patches->len * sizeof (guint32)); if (!llvm) { acfg->plt_got_info_offsets = (guint32 *)mono_mempool_alloc (acfg->mempool, acfg->plt_offset * sizeof (guint32)); /* Unused */ if (acfg->plt_offset) acfg->plt_got_info_offsets [0] = 0; } for (i = 0; i < info->got_patches->len; ++i) { MonoJumpInfo *ji = (MonoJumpInfo *)g_ptr_array_index (info->got_patches, i); guint8 *p2; p = buf; encode_value (ji->type, p, &p); p2 = p; encode_patch (acfg, ji, p, &p); acfg->stats.got_slot_info_sizes [ji->type] += p - p2; g_assert (p - buf <= buf_size); got_info_offsets [i] = add_to_blob (acfg, buf, p - buf); if (!llvm && i >= first_plt_got_patch) acfg->plt_got_info_offsets [i - first_plt_got_patch + 1] = got_info_offsets [i]; acfg->stats.got_info_size += p - buf; } /* Emit got_info_offsets table */ /* No need to emit offsets for the got plt entries, the plt embeds them directly */ acfg->stats.offsets_size += emit_offset_table (acfg, llvm ? "llvm_got_info_offsets" : "got_info_offsets", llvm ? MONO_AOT_TABLE_LLVM_GOT_INFO_OFFSETS : MONO_AOT_TABLE_GOT_INFO_OFFSETS, llvm ? acfg->llvm_got_offset : first_plt_got_patch, 10, (gint32*)got_info_offsets); } static void emit_got (MonoAotCompile *acfg) { char symbol [MAX_SYMBOL_SIZE]; if (acfg->aot_opts.llvm_only) return; /* Don't make GOT global so accesses to it don't need relocations */ sprintf (symbol, "%s", acfg->got_symbol); #ifdef TARGET_MACH emit_unset_mode (acfg); fprintf (acfg->fp, ".section __DATA, __bss\n"); emit_alignment (acfg, 8); if (acfg->llvm) emit_info_symbol (acfg, "jit_got"); fprintf (acfg->fp, ".lcomm %s, %d\n", acfg->got_symbol, (int)(acfg->got_offset * sizeof (gpointer))); #else emit_section_change (acfg, ".bss", 0); emit_alignment (acfg, 8); if (acfg->aot_opts.write_symbols) emit_local_symbol (acfg, symbol, "got_end", FALSE); emit_label (acfg, symbol); if (acfg->llvm) emit_info_symbol (acfg, "jit_got"); if (acfg->got_offset > 0) emit_zero_bytes (acfg, (int)(acfg->got_offset * sizeof (gpointer))); #endif sprintf (symbol, "got_end"); emit_label (acfg, symbol); } typedef struct GlobalsTableEntry { guint32 value, index; struct GlobalsTableEntry *next; } GlobalsTableEntry; #ifdef TARGET_WIN32_MSVC #define DLL_ENTRY_POINT "DllMain" static void emit_library_info (MonoAotCompile *acfg) { // Only include for shared libraries linked directly from generated object. if (link_shared_library (acfg)) { char *name = NULL; char symbol [MAX_SYMBOL_SIZE]; // Ask linker to export all global symbols. emit_section_change (acfg, ".drectve", 0); for (guint i = 0; i < acfg->globals->len; ++i) { name = (char *)g_ptr_array_index (acfg->globals, i); g_assert (name != NULL); sprintf_s (symbol, MAX_SYMBOL_SIZE, " /EXPORT:%s", name); emit_string (acfg, symbol); } // Emit DLLMain function, needed by MSVC linker for DLL's. // NOTE, DllMain should not go into exports above. emit_section_change (acfg, ".text", 0); emit_global (acfg, DLL_ENTRY_POINT, TRUE); emit_label (acfg, DLL_ENTRY_POINT); // Simple implementation of DLLMain, just returning TRUE. // For more information about DLLMain: https://msdn.microsoft.com/en-us/library/windows/desktop/ms682583(v=vs.85).aspx fprintf (acfg->fp, "movl $1, %%eax\n"); fprintf (acfg->fp, "ret\n"); // Inform linker about our dll entry function. emit_section_change (acfg, ".drectve", 0); emit_string (acfg, "/ENTRY:" DLL_ENTRY_POINT); return; } } #else static inline void emit_library_info (MonoAotCompile *acfg) { return; } #endif static void emit_globals (MonoAotCompile *acfg) { int i, table_size; guint32 hash; GPtrArray *table; char symbol [1024]; GlobalsTableEntry *entry, *new_entry; if (!acfg->aot_opts.static_link) return; if (acfg->aot_opts.llvm_only) { g_assert (acfg->globals->len == 0); return; } /* * When static linking, we emit a table containing our globals. */ /* * Construct a chained hash table for mapping global names to their index in * the globals table. */ table_size = g_spaced_primes_closest ((int)(acfg->globals->len * 1.5)); table = g_ptr_array_sized_new (table_size); for (i = 0; i < table_size; ++i) g_ptr_array_add (table, NULL); for (i = 0; i < acfg->globals->len; ++i) { char *name = (char *)g_ptr_array_index (acfg->globals, i); hash = mono_metadata_str_hash (name) % table_size; /* FIXME: Allocate from the mempool */ new_entry = g_new0 (GlobalsTableEntry, 1); new_entry->value = i; entry = (GlobalsTableEntry *)g_ptr_array_index (table, hash); if (entry == NULL) { new_entry->index = hash; g_ptr_array_index (table, hash) = new_entry; } else { while (entry->next) entry = entry->next; entry->next = new_entry; new_entry->index = table->len; g_ptr_array_add (table, new_entry); } } /* Emit the table */ sprintf (symbol, ".Lglobals_hash"); emit_section_change (acfg, RODATA_SECT, 0); emit_alignment (acfg, 8); emit_label (acfg, symbol); /* FIXME: Optimize memory usage */ g_assert (table_size < 65000); emit_int16 (acfg, table_size); for (i = 0; i < table->len; ++i) { GlobalsTableEntry *entry = (GlobalsTableEntry *)g_ptr_array_index (table, i); if (entry == NULL) { emit_int16 (acfg, 0); emit_int16 (acfg, 0); } else { emit_int16 (acfg, entry->value + 1); if (entry->next) emit_int16 (acfg, entry->next->index); else emit_int16 (acfg, 0); } } /* Emit the names */ for (i = 0; i < acfg->globals->len; ++i) { char *name = (char *)g_ptr_array_index (acfg->globals, i); sprintf (symbol, "name_%d", i); emit_section_change (acfg, RODATA_SECT, 1); #ifdef TARGET_MACH emit_alignment (acfg, 4); #endif emit_label (acfg, symbol); emit_string (acfg, name); } /* Emit the globals table */ sprintf (symbol, "globals"); emit_section_change (acfg, ".data", 0); /* This is not a global, since it is accessed by the init function */ emit_alignment (acfg, 8); emit_info_symbol (acfg, symbol); sprintf (symbol, "%sglobals_hash", acfg->temp_prefix); emit_pointer (acfg, symbol); for (i = 0; i < acfg->globals->len; ++i) { char *name = (char *)g_ptr_array_index (acfg->globals, i); sprintf (symbol, "name_%d", i); emit_pointer (acfg, symbol); g_assert (strlen (name) < sizeof (symbol)); sprintf (symbol, "%s", name); emit_pointer (acfg, symbol); } /* Null terminate the table */ emit_int32 (acfg, 0); emit_int32 (acfg, 0); } static void emit_mem_end (MonoAotCompile *acfg) { char symbol [128]; if (acfg->aot_opts.llvm_only) return; sprintf (symbol, "mem_end"); emit_section_change (acfg, ".text", 1); emit_alignment_code (acfg, 8); emit_label (acfg, symbol); } static void init_aot_file_info (MonoAotCompile *acfg, MonoAotFileInfo *info) { int i; info->version = MONO_AOT_FILE_VERSION; info->plt_got_offset_base = acfg->plt_got_offset_base; info->got_size = acfg->got_offset * sizeof (gpointer); info->plt_size = acfg->plt_offset; info->nmethods = acfg->nmethods; info->flags = acfg->flags; info->opts = acfg->opts; info->simd_opts = acfg->simd_opts; info->gc_name_index = acfg->gc_name_offset; info->datafile_size = acfg->datafile_offset; for (i = 0; i < MONO_AOT_TABLE_NUM; ++i) info->table_offsets [i] = acfg->table_offsets [i]; for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i) info->num_trampolines [i] = acfg->num_trampolines [i]; for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i) info->trampoline_got_offset_base [i] = acfg->trampoline_got_offset_base [i]; for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i) info->trampoline_size [i] = acfg->trampoline_size [i]; info->num_rgctx_fetch_trampolines = acfg->aot_opts.nrgctx_fetch_trampolines; info->double_align = MONO_ABI_ALIGNOF (double); info->long_align = MONO_ABI_ALIGNOF (gint64); info->generic_tramp_num = MONO_TRAMPOLINE_NUM; info->tramp_page_size = acfg->tramp_page_size; info->nshared_got_entries = acfg->nshared_got_entries; for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i) info->tramp_page_code_offsets [i] = acfg->tramp_page_code_offsets [i]; memcpy(&info->aotid, acfg->image->aotid, 16); } static void emit_aot_file_info (MonoAotCompile *acfg, MonoAotFileInfo *info) { char symbol [MAX_SYMBOL_SIZE]; int i, sindex; const char **symbols; symbols = g_new0 (const char *, MONO_AOT_FILE_INFO_NUM_SYMBOLS); sindex = 0; symbols [sindex ++] = acfg->got_symbol; if (acfg->llvm) { symbols [sindex ++] = g_strdup_printf ("%s%s", acfg->user_symbol_prefix, acfg->llvm_got_symbol); symbols [sindex ++] = acfg->llvm_eh_frame_symbol; } else { symbols [sindex ++] = NULL; symbols [sindex ++] = NULL; } /* llvm_get_method */ symbols [sindex ++] = NULL; /* llvm_get_unbox_tramp */ symbols [sindex ++] = NULL; if (!acfg->aot_opts.llvm_only) { symbols [sindex ++] = "jit_code_start"; symbols [sindex ++] = "jit_code_end"; symbols [sindex ++] = "method_addresses"; } else { symbols [sindex ++] = NULL; symbols [sindex ++] = NULL; symbols [sindex ++] = NULL; } if (acfg->data_outfile) { for (i = 0; i < MONO_AOT_TABLE_NUM; ++i) symbols [sindex ++] = NULL; } else { symbols [sindex ++] = "blob"; symbols [sindex ++] = "class_name_table"; symbols [sindex ++] = "class_info_offsets"; symbols [sindex ++] = "method_info_offsets"; symbols [sindex ++] = "ex_info_offsets"; symbols [sindex ++] = "extra_method_info_offsets"; symbols [sindex ++] = "extra_method_table"; symbols [sindex ++] = "got_info_offsets"; if (acfg->llvm) symbols [sindex ++] = "llvm_got_info_offsets"; else symbols [sindex ++] = NULL; symbols [sindex ++] = "image_table"; } symbols [sindex ++] = "mem_end"; symbols [sindex ++] = "assembly_guid"; symbols [sindex ++] = "runtime_version"; if (acfg->num_trampoline_got_entries) { symbols [sindex ++] = "specific_trampolines"; symbols [sindex ++] = "static_rgctx_trampolines"; symbols [sindex ++] = "imt_trampolines"; symbols [sindex ++] = "gsharedvt_arg_trampolines"; } else { symbols [sindex ++] = NULL; symbols [sindex ++] = NULL; symbols [sindex ++] = NULL; symbols [sindex ++] = NULL; } if (acfg->aot_opts.static_link) { symbols [sindex ++] = "globals"; } else { symbols [sindex ++] = NULL; } symbols [sindex ++] = "assembly_name"; symbols [sindex ++] = "plt"; symbols [sindex ++] = "plt_end"; symbols [sindex ++] = "unwind_info"; if (!acfg->aot_opts.llvm_only) { symbols [sindex ++] = "unbox_trampolines"; symbols [sindex ++] = "unbox_trampolines_end"; symbols [sindex ++] = "unbox_trampoline_addresses"; } else { symbols [sindex ++] = NULL; symbols [sindex ++] = NULL; symbols [sindex ++] = NULL; } g_assert (sindex == MONO_AOT_FILE_INFO_NUM_SYMBOLS); sprintf (symbol, "%smono_aot_file_info", acfg->user_symbol_prefix); emit_section_change (acfg, ".data", 0); emit_alignment (acfg, 8); emit_label (acfg, symbol); if (!acfg->aot_opts.static_link) emit_global (acfg, symbol, FALSE); /* The data emitted here must match MonoAotFileInfo. */ emit_int32 (acfg, info->version); emit_int32 (acfg, info->dummy); /* * We emit pointers to our data structures instead of emitting global symbols which * point to them, to reduce the number of globals, and because using globals leads to * various problems (i.e. arm/thumb). */ for (i = 0; i < MONO_AOT_FILE_INFO_NUM_SYMBOLS; ++i) emit_pointer (acfg, symbols [i]); emit_int32 (acfg, info->plt_got_offset_base); emit_int32 (acfg, info->got_size); emit_int32 (acfg, info->plt_size); emit_int32 (acfg, info->nmethods); emit_int32 (acfg, info->flags); emit_int32 (acfg, info->opts); emit_int32 (acfg, info->simd_opts); emit_int32 (acfg, info->gc_name_index); emit_int32 (acfg, info->num_rgctx_fetch_trampolines); emit_int32 (acfg, info->double_align); emit_int32 (acfg, info->long_align); emit_int32 (acfg, info->generic_tramp_num); emit_int32 (acfg, info->tramp_page_size); emit_int32 (acfg, info->nshared_got_entries); emit_int32 (acfg, info->datafile_size); for (i = 0; i < MONO_AOT_TABLE_NUM; ++i) emit_int32 (acfg, info->table_offsets [i]); for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i) emit_int32 (acfg, info->num_trampolines [i]); for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i) emit_int32 (acfg, info->trampoline_got_offset_base [i]); for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i) emit_int32 (acfg, info->trampoline_size [i]); for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i) emit_int32 (acfg, info->tramp_page_code_offsets [i]); emit_bytes (acfg, info->aotid, 16); if (acfg->aot_opts.static_link) { emit_global_inner (acfg, acfg->static_linking_symbol, FALSE); emit_alignment (acfg, sizeof (gpointer)); emit_label (acfg, acfg->static_linking_symbol); emit_pointer_2 (acfg, acfg->user_symbol_prefix, "mono_aot_file_info"); } } /* * Emit a structure containing all the information not stored elsewhere. */ static void emit_file_info (MonoAotCompile *acfg) { char *build_info; MonoAotFileInfo *info; if (acfg->aot_opts.bind_to_runtime_version) { build_info = mono_get_runtime_build_info (); emit_string_symbol (acfg, "runtime_version", build_info); g_free (build_info); } else { emit_string_symbol (acfg, "runtime_version", ""); } emit_string_symbol (acfg, "assembly_guid" , acfg->image->guid); /* Emit a string holding the assembly name */ emit_string_symbol (acfg, "assembly_name", acfg->image->assembly->aname.name); info = g_new0 (MonoAotFileInfo, 1); init_aot_file_info (acfg, info); if (acfg->aot_opts.static_link) { char symbol [MAX_SYMBOL_SIZE]; char *p; /* * Emit a global symbol which can be passed by an embedding app to * mono_aot_register_module (). The symbol points to a pointer to the the file info * structure. */ sprintf (symbol, "%smono_aot_module_%s_info", acfg->user_symbol_prefix, acfg->image->assembly->aname.name); /* Get rid of characters which cannot occur in symbols */ p = symbol; for (p = symbol; *p; ++p) { if (!(isalnum (*p) || *p == '_')) *p = '_'; } acfg->static_linking_symbol = g_strdup (symbol); } if (acfg->llvm) mono_llvm_emit_aot_file_info (info, acfg->has_jitted_code); else emit_aot_file_info (acfg, info); } static void emit_blob (MonoAotCompile *acfg) { acfg->blob_closed = TRUE; emit_aot_data (acfg, MONO_AOT_TABLE_BLOB, "blob", (guint8*)acfg->blob.data, acfg->blob.index); } static void emit_objc_selectors (MonoAotCompile *acfg) { int i; char symbol [128]; if (!acfg->objc_selectors || acfg->objc_selectors->len == 0) return; /* * From * cat > foo.m << EOF * void *ret () * { * return @selector(print:); * } * EOF */ mono_img_writer_emit_unset_mode (acfg->w); g_assert (acfg->fp); fprintf (acfg->fp, ".section __DATA,__objc_selrefs,literal_pointers,no_dead_strip\n"); fprintf (acfg->fp, ".align 3\n"); for (i = 0; i < acfg->objc_selectors->len; ++i) { sprintf (symbol, "L_OBJC_SELECTOR_REFERENCES_%d", i); emit_label (acfg, symbol); sprintf (symbol, "L_OBJC_METH_VAR_NAME_%d", i); emit_pointer (acfg, symbol); } fprintf (acfg->fp, ".section __TEXT,__cstring,cstring_literals\n"); for (i = 0; i < acfg->objc_selectors->len; ++i) { fprintf (acfg->fp, "L_OBJC_METH_VAR_NAME_%d:\n", i); fprintf (acfg->fp, ".asciz \"%s\"\n", (char*)g_ptr_array_index (acfg->objc_selectors, i)); } fprintf (acfg->fp, ".section __DATA,__objc_imageinfo,regular,no_dead_strip\n"); fprintf (acfg->fp, ".align 3\n"); fprintf (acfg->fp, "L_OBJC_IMAGE_INFO:\n"); fprintf (acfg->fp, ".long 0\n"); fprintf (acfg->fp, ".long 16\n"); } static void emit_dwarf_info (MonoAotCompile *acfg) { #ifdef EMIT_DWARF_INFO int i; char symbol2 [128]; /* DIEs for methods */ for (i = 0; i < acfg->nmethods; ++i) { MonoCompile *cfg = acfg->cfgs [i]; if (!cfg) continue; // FIXME: LLVM doesn't define .Lme_... if (cfg->compile_llvm) continue; sprintf (symbol2, "%sme_%x", acfg->temp_prefix, i); mono_dwarf_writer_emit_method (acfg->dwarf, cfg, cfg->method, cfg->asm_symbol, symbol2, cfg->asm_debug_symbol, (guint8 *)cfg->jit_info->code_start, cfg->jit_info->code_size, cfg->args, cfg->locals, cfg->unwind_ops, mono_debug_find_method (cfg->jit_info->d.method, mono_domain_get ())); } #endif } static gboolean collect_methods (MonoAotCompile *acfg) { int mindex, i; MonoImage *image = acfg->image; /* Collect methods */ for (i = 0; i < image->tables [MONO_TABLE_METHOD].rows; ++i) { MonoError error; MonoMethod *method; guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1); method = mono_get_method_checked (acfg->image, token, NULL, NULL, &error); if (!method) { aot_printerrf (acfg, "Failed to load method 0x%x from '%s' due to %s.\n", token, image->name, mono_error_get_message (&error)); aot_printerrf (acfg, "Run with MONO_LOG_LEVEL=debug for more information.\n"); mono_error_cleanup (&error); return FALSE; } /* Load all methods eagerly to skip the slower lazy loading code */ mono_class_setup_methods (method->klass); if (mono_aot_mode_is_full (&acfg->aot_opts) && method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) { /* Compile the wrapper instead */ /* We do this here instead of add_wrappers () because it is easy to do it here */ MonoMethod *wrapper = mono_marshal_get_native_wrapper (method, TRUE, TRUE); method = wrapper; } /* FIXME: Some mscorlib methods don't have debug info */ /* if (acfg->aot_opts.soft_debug && !method->wrapper_type) { if (!((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) || (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) || (method->flags & METHOD_ATTRIBUTE_ABSTRACT) || (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))) { if (!mono_debug_lookup_method (method)) { fprintf (stderr, "Method %s has no debug info, probably the .mdb file for the assembly is missing.\n", mono_method_get_full_name (method)); exit (1); } } } */ if (method->is_generic || mono_class_is_gtd (method->klass)) /* Compile the ref shared version instead */ method = mini_get_shared_method (method); /* Since we add the normal methods first, their index will be equal to their zero based token index */ add_method_with_index (acfg, method, i, FALSE); acfg->method_index ++; } /* gsharedvt methods */ for (mindex = 0; mindex < image->tables [MONO_TABLE_METHOD].rows; ++mindex) { MonoError error; MonoMethod *method; guint32 token = MONO_TOKEN_METHOD_DEF | (mindex + 1); if (!(acfg->opts & MONO_OPT_GSHAREDVT)) continue; method = mono_get_method_checked (acfg->image, token, NULL, NULL, &error); report_loader_error (acfg, &error, TRUE, "Failed to load method token 0x%x due to %s\n", i, mono_error_get_message (&error)); if (method->is_generic || mono_class_is_gtd (method->klass)) { MonoMethod *gshared; gshared = mini_get_shared_method_full (method, TRUE, TRUE); add_extra_method (acfg, gshared); } } if (mono_aot_mode_is_full (&acfg->aot_opts)) add_generic_instances (acfg); if (mono_aot_mode_is_full (&acfg->aot_opts)) add_wrappers (acfg); return TRUE; } static void compile_methods (MonoAotCompile *acfg) { int i, methods_len; if (acfg->aot_opts.nthreads > 0) { GPtrArray *frag; int len, j; GPtrArray *threads; MonoThreadHandle *thread_handle; gpointer *user_data; MonoMethod **methods; methods_len = acfg->methods->len; len = acfg->methods->len / acfg->aot_opts.nthreads; g_assert (len > 0); /* * Partition the list of methods into fragments, and hand it to threads to * process. */ threads = g_ptr_array_new (); /* Make a copy since acfg->methods is modified by compile_method () */ methods = g_new0 (MonoMethod*, methods_len); //memcpy (methods, g_ptr_array_index (acfg->methods, 0), sizeof (MonoMethod*) * methods_len); for (i = 0; i < methods_len; ++i) methods [i] = (MonoMethod *)g_ptr_array_index (acfg->methods, i); i = 0; while (i < methods_len) { MonoError error; MonoInternalThread *thread; frag = g_ptr_array_new (); for (j = 0; j < len; ++j) { if (i < methods_len) { g_ptr_array_add (frag, methods [i]); i ++; } } user_data = g_new0 (gpointer, 3); user_data [0] = acfg; user_data [1] = frag; thread = mono_thread_create_internal (mono_domain_get (), compile_thread_main, (gpointer) user_data, MONO_THREAD_CREATE_FLAGS_NONE, &error); mono_error_assert_ok (&error); thread_handle = mono_threads_open_thread_handle (thread->handle); g_ptr_array_add (threads, thread_handle); } g_free (methods); for (i = 0; i < threads->len; ++i) { mono_thread_info_wait_one_handle (g_ptr_array_index (threads, i), MONO_INFINITE_WAIT, FALSE); mono_threads_close_thread_handle (g_ptr_array_index (threads, i)); } } else { methods_len = 0; } /* Compile methods added by compile_method () or all methods if nthreads == 0 */ for (i = methods_len; i < acfg->methods->len; ++i) { /* This can add new methods to acfg->methods */ compile_method (acfg, (MonoMethod *)g_ptr_array_index (acfg->methods, i)); } } static int compile_asm (MonoAotCompile *acfg) { char *command, *objfile; char *outfile_name, *tmp_outfile_name, *llvm_ofile; const char *tool_prefix = acfg->aot_opts.tool_prefix ? acfg->aot_opts.tool_prefix : ""; char *ld_flags = acfg->aot_opts.ld_flags ? acfg->aot_opts.ld_flags : g_strdup(""); #ifdef TARGET_WIN32_MSVC #define AS_OPTIONS "-c -x assembler" #elif defined(TARGET_AMD64) && !defined(TARGET_MACH) #define AS_OPTIONS "--64" #elif defined(TARGET_POWERPC64) #define AS_OPTIONS "-a64 -mppc64" #elif defined(sparc) && SIZEOF_VOID_P == 8 #define AS_OPTIONS "-xarch=v9" #elif defined(TARGET_X86) && defined(TARGET_MACH) #define AS_OPTIONS "-arch i386" #else #define AS_OPTIONS "" #endif #if defined(TARGET_OSX) #define AS_NAME "clang" #elif defined(TARGET_WIN32_MSVC) #define AS_NAME "clang.exe" #else #define AS_NAME "as" #endif #ifdef TARGET_WIN32_MSVC #define AS_OBJECT_FILE_SUFFIX "obj" #else #define AS_OBJECT_FILE_SUFFIX "o" #endif #if defined(sparc) #define LD_NAME "ld" #define LD_OPTIONS "-shared -G" #elif defined(__ppc__) && defined(TARGET_MACH) #define LD_NAME "gcc" #define LD_OPTIONS "-dynamiclib" #elif defined(TARGET_AMD64) && defined(TARGET_MACH) #define LD_NAME "clang" #define LD_OPTIONS "--shared" #elif defined(TARGET_WIN32_MSVC) #define LD_NAME "link.exe" #define LD_OPTIONS "/DLL /MACHINE:X64 /NOLOGO" #elif defined(TARGET_WIN32) && !defined(TARGET_ANDROID) #define LD_NAME "gcc" #define LD_OPTIONS "-shared" #elif defined(TARGET_X86) && defined(TARGET_MACH) #define LD_NAME "clang" #define LD_OPTIONS "-m32 -dynamiclib" #elif defined(TARGET_ARM) && !defined(TARGET_ANDROID) #define LD_NAME "gcc" #define LD_OPTIONS "--shared" #elif defined(TARGET_POWERPC64) #define LD_OPTIONS "-m elf64ppc" #endif #ifndef LD_OPTIONS #define LD_OPTIONS "" #endif if (acfg->aot_opts.asm_only) { aot_printf (acfg, "Output file: '%s'.\n", acfg->tmpfname); if (acfg->aot_opts.static_link) aot_printf (acfg, "Linking symbol: '%s'.\n", acfg->static_linking_symbol); if (acfg->llvm) aot_printf (acfg, "LLVM output file: '%s'.\n", acfg->llvm_sfile); return 0; } if (acfg->aot_opts.static_link) { if (acfg->aot_opts.outfile) objfile = g_strdup_printf ("%s", acfg->aot_opts.outfile); else objfile = g_strdup_printf ("%s." AS_OBJECT_FILE_SUFFIX, acfg->image->name); } else { objfile = g_strdup_printf ("%s." AS_OBJECT_FILE_SUFFIX, acfg->tmpfname); } #ifdef TARGET_OSX g_string_append (acfg->as_args, "-c -x assembler"); #endif command = g_strdup_printf ("\"%s%s\" %s %s -o %s %s", tool_prefix, AS_NAME, AS_OPTIONS, acfg->as_args ? acfg->as_args->str : "", wrap_path (objfile), wrap_path (acfg->tmpfname)); aot_printf (acfg, "Executing the native assembler: %s\n", command); if (execute_system (command) != 0) { g_free (command); g_free (objfile); return 1; } if (acfg->llvm && !acfg->llvm_owriter) { command = g_strdup_printf ("\"%s%s\" %s %s -o %s %s", tool_prefix, AS_NAME, AS_OPTIONS, acfg->as_args ? acfg->as_args->str : "", wrap_path (acfg->llvm_ofile), wrap_path (acfg->llvm_sfile)); aot_printf (acfg, "Executing the native assembler: %s\n", command); if (execute_system (command) != 0) { g_free (command); g_free (objfile); return 1; } } g_free (command); if (acfg->aot_opts.static_link) { aot_printf (acfg, "Output file: '%s'.\n", objfile); aot_printf (acfg, "Linking symbol: '%s'.\n", acfg->static_linking_symbol); g_free (objfile); return 0; } if (acfg->aot_opts.outfile) outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile); else outfile_name = g_strdup_printf ("%s%s", acfg->image->name, MONO_SOLIB_EXT); tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name); if (acfg->llvm) { llvm_ofile = g_strdup_printf ("\"%s\"", acfg->llvm_ofile); } else { llvm_ofile = g_strdup (""); } /* replace the ; flags separators with spaces */ g_strdelimit (ld_flags, ";", ' '); if (acfg->aot_opts.llvm_only) ld_flags = g_strdup_printf ("%s %s", ld_flags, "-lstdc++"); #ifdef TARGET_WIN32_MSVC g_assert (tmp_outfile_name != NULL); g_assert (objfile != NULL); command = g_strdup_printf ("\"%s%s\" %s %s /OUT:\"%s\" \"%s\"", tool_prefix, LD_NAME, LD_OPTIONS, ld_flags, tmp_outfile_name, objfile); #elif defined(LD_NAME) command = g_strdup_printf ("%s%s %s -o %s %s %s %s", tool_prefix, LD_NAME, LD_OPTIONS, wrap_path (tmp_outfile_name), wrap_path (llvm_ofile), wrap_path (g_strdup_printf ("%s." AS_OBJECT_FILE_SUFFIX, acfg->tmpfname)), ld_flags); #else // Default (linux) if (acfg->aot_opts.tool_prefix) { /* Cross compiling */ command = g_strdup_printf ("\"%sld\" %s -shared -o %s %s %s %s", tool_prefix, LD_OPTIONS, wrap_path (tmp_outfile_name), wrap_path (llvm_ofile), wrap_path (g_strdup_printf ("%s." AS_OBJECT_FILE_SUFFIX, acfg->tmpfname)), ld_flags); } else { char *args = g_strdup_printf ("%s -shared -o %s %s %s %s", LD_OPTIONS, wrap_path (tmp_outfile_name), wrap_path (llvm_ofile), wrap_path (g_strdup_printf ("%s." AS_OBJECT_FILE_SUFFIX, acfg->tmpfname)), ld_flags); if (acfg->aot_opts.llvm_only) { command = g_strdup_printf ("clang++ %s", args); } else { command = g_strdup_printf ("\"%sld\" %s", tool_prefix, args); } g_free (args); } #endif aot_printf (acfg, "Executing the native linker: %s\n", command); if (execute_system (command) != 0) { g_free (tmp_outfile_name); g_free (outfile_name); g_free (command); g_free (objfile); g_free (ld_flags); return 1; } g_free (command); /*com = g_strdup_printf ("strip --strip-unneeded %s%s", acfg->image->name, MONO_SOLIB_EXT); printf ("Stripping the binary: %s\n", com); execute_system (com); g_free (com);*/ #if defined(TARGET_ARM) && !defined(TARGET_MACH) /* * gas generates 'mapping symbols' each time code and data is mixed, which * happens a lot in emit_and_reloc_code (), so we need to get rid of them. */ command = g_strdup_printf ("\"%sstrip\" --strip-symbol=\\$a --strip-symbol=\\$d %s", wrap_path(tool_prefix), wrap_path(tmp_outfile_name)); aot_printf (acfg, "Stripping the binary: %s\n", command); if (execute_system (command) != 0) { g_free (tmp_outfile_name); g_free (outfile_name); g_free (command); g_free (objfile); return 1; } #endif if (0 != rename (tmp_outfile_name, outfile_name)) { if (G_FILE_ERROR_EXIST == g_file_error_from_errno (errno)) { /* Since we are rebuilding the module we need to be able to replace any old copies. Remove old file and retry rename operation. */ unlink (outfile_name); rename (tmp_outfile_name, outfile_name); } } #if defined(TARGET_MACH) command = g_strdup_printf ("dsymutil \"%s\"", outfile_name); aot_printf (acfg, "Executing dsymutil: %s\n", command); if (execute_system (command) != 0) { return 1; } #endif if (!acfg->aot_opts.save_temps) unlink (objfile); g_free (tmp_outfile_name); g_free (outfile_name); g_free (objfile); if (acfg->aot_opts.save_temps) aot_printf (acfg, "Retained input file.\n"); else unlink (acfg->tmpfname); return 0; } static guint8 profread_byte (FILE *infile) { guint8 i; int res; res = fread (&i, 1, 1, infile); g_assert (res == 1); return i; } static int profread_int (FILE *infile) { int i, res; res = fread (&i, 4, 1, infile); g_assert (res == 1); return i; } static char* profread_string (FILE *infile) { int len, res; char buf [1024]; char *pbuf; len = profread_int (infile); if (len + 1 > 1024) pbuf = g_malloc (len + 1); else pbuf = buf; res = fread (pbuf, 1, len, infile); g_assert (res == len); pbuf [len] = '\0'; if (pbuf == buf) return g_strdup (buf); else return pbuf; } static void load_profile_file (MonoAotCompile *acfg, char *filename) { FILE *infile; char buf [1024]; int res, len, version; char magic [32]; infile = fopen (filename, "r"); if (!infile) { fprintf (stderr, "Unable to open file '%s': %s.\n", filename, strerror (errno)); exit (1); } printf ("Using profile data file '%s'\n", filename); sprintf (magic, AOT_PROFILER_MAGIC); len = strlen (magic); res = fread (buf, 1, len, infile); magic [len] = '\0'; buf [len] = '\0'; if ((res != len) || strcmp (buf, magic) != 0) { printf ("Profile file has wrong header: '%s'.\n", buf); fclose (infile); exit (1); } guint32 expected_version = (AOT_PROFILER_MAJOR_VERSION << 16) | AOT_PROFILER_MINOR_VERSION; version = profread_int (infile); if (version != expected_version) { printf ("Profile file has wrong version 0x%4x, expected 0x%4x.\n", version, expected_version); fclose (infile); exit (1); } ProfileData *data = g_new0 (ProfileData, 1); data->images = g_hash_table_new (NULL, NULL); data->classes = g_hash_table_new (NULL, NULL); data->ginsts = g_hash_table_new (NULL, NULL); data->methods = g_hash_table_new (NULL, NULL); while (TRUE) { int type = profread_byte (infile); int id = profread_int (infile); if (type == AOTPROF_RECORD_NONE) break; switch (type) { case AOTPROF_RECORD_IMAGE: { ImageProfileData *idata = g_new0 (ImageProfileData, 1); idata->name = profread_string (infile); char *mvid = profread_string (infile); g_free (mvid); g_hash_table_insert (data->images, GINT_TO_POINTER (id), idata); break; } case AOTPROF_RECORD_GINST: { int i; int len = profread_int (infile); GInstProfileData *gdata = g_new0 (GInstProfileData, 1); gdata->argc = len; gdata->argv = g_new0 (ClassProfileData*, len); for (i = 0; i < len; ++i) { int class_id = profread_int (infile); gdata->argv [i] = g_hash_table_lookup (data->classes, GINT_TO_POINTER (class_id)); g_assert (gdata->argv [i]); } g_hash_table_insert (data->ginsts, GINT_TO_POINTER (id), gdata); break; } case AOTPROF_RECORD_TYPE: { int type = profread_byte (infile); switch (type) { case MONO_TYPE_CLASS: { int image_id = profread_int (infile); int ginst_id = profread_int (infile); char *class_name = profread_string (infile); ImageProfileData *image = g_hash_table_lookup (data->images, GINT_TO_POINTER (image_id)); g_assert (image); char *p = strrchr (class_name, '.'); g_assert (p); *p = '\0'; ClassProfileData *cdata = g_new0 (ClassProfileData, 1); cdata->image = image; cdata->ns = g_strdup (class_name); cdata->name = g_strdup (p + 1); if (ginst_id != -1) { cdata->inst = g_hash_table_lookup (data->ginsts, GINT_TO_POINTER (ginst_id)); g_assert (cdata->inst); } g_free (class_name); g_hash_table_insert (data->classes, GINT_TO_POINTER (id), cdata); break; } #if 0 case MONO_TYPE_SZARRAY: { int elem_id = profread_int (infile); // FIXME: break; } #endif default: g_assert_not_reached (); break; } break; } case AOTPROF_RECORD_METHOD: { int class_id = profread_int (infile); int ginst_id = profread_int (infile); int param_count = profread_int (infile); char *method_name = profread_string (infile); char *sig = profread_string (infile); ClassProfileData *klass = g_hash_table_lookup (data->classes, GINT_TO_POINTER (class_id)); g_assert (klass); MethodProfileData *mdata = g_new0 (MethodProfileData, 1); mdata->id = id; mdata->klass = klass; mdata->name = method_name; mdata->signature = sig; mdata->param_count = param_count; if (ginst_id != -1) { mdata->inst = g_hash_table_lookup (data->ginsts, GINT_TO_POINTER (ginst_id)); g_assert (mdata->inst); } g_hash_table_insert (data->methods, GINT_TO_POINTER (id), mdata); break; } default: printf ("%d\n", type); g_assert_not_reached (); break; } } fclose (infile); acfg->profile_data = g_list_append (acfg->profile_data, data); } static void resolve_class (ClassProfileData *cdata); static void resolve_ginst (GInstProfileData *inst_data) { int i; if (inst_data->inst) return; for (i = 0; i < inst_data->argc; ++i) { resolve_class (inst_data->argv [i]); if (!inst_data->argv [i]->klass) return; } MonoType **args = g_new0 (MonoType*, inst_data->argc); for (i = 0; i < inst_data->argc; ++i) args [i] = &inst_data->argv [i]->klass->byval_arg; inst_data->inst = mono_metadata_get_generic_inst (inst_data->argc, args); } static void resolve_class (ClassProfileData *cdata) { MonoError error; MonoClass *klass; if (!cdata->image->image) return; klass = mono_class_from_name_checked (cdata->image->image, cdata->ns, cdata->name, &error); if (!klass) { //printf ("[%s] %s.%s\n", cdata->image->name, cdata->ns, cdata->name); return; } if (cdata->inst) { resolve_ginst (cdata->inst); if (!cdata->inst->inst) return; MonoGenericContext ctx; memset (&ctx, 0, sizeof (ctx)); ctx.class_inst = cdata->inst->inst; cdata->klass = mono_class_inflate_generic_class_checked (klass, &ctx, &error); } else { cdata->klass = klass; } } /* * Resolve the profile data to the corresponding loaded classes/methods etc. if possible. */ static void resolve_profile_data (MonoAotCompile *acfg, ProfileData *data) { GHashTableIter iter; gpointer key, value; int i; if (!data) return; /* Images */ GPtrArray *assemblies = mono_domain_get_assemblies (mono_get_root_domain (), FALSE); g_hash_table_iter_init (&iter, data->images); while (g_hash_table_iter_next (&iter, &key, &value)) { ImageProfileData *idata = (ImageProfileData*)value; for (i = 0; i < assemblies->len; ++i) { MonoAssembly *ass = g_ptr_array_index (assemblies, i); if (!strcmp (ass->aname.name, idata->name)) { idata->image = ass->image; break; } } } g_ptr_array_free (assemblies, TRUE); /* Classes */ g_hash_table_iter_init (&iter, data->classes); while (g_hash_table_iter_next (&iter, &key, &value)) { ClassProfileData *cdata = (ClassProfileData*)value; if (!cdata->image->image) { if (acfg->aot_opts.verbose) printf ("Unable to load class '%s.%s' because its image '%s' is not loaded.\n", cdata->ns, cdata->name, cdata->image->name); continue; } resolve_class (cdata); /* if (cdata->klass) printf ("%s %s %s\n", cdata->ns, cdata->name, mono_class_full_name (cdata->klass)); */ } /* Methods */ g_hash_table_iter_init (&iter, data->methods); while (g_hash_table_iter_next (&iter, &key, &value)) { MethodProfileData *mdata = (MethodProfileData*)value; MonoClass *klass; MonoMethod *m; gpointer miter; resolve_class (mdata->klass); klass = mdata->klass->klass; if (!klass) { if (acfg->aot_opts.verbose) printf ("Unable to load method '%s' because its class '%s.%s' is not loaded.\n", mdata->name, mdata->klass->ns, mdata->klass->name); continue; } miter = NULL; while ((m = mono_class_get_methods (klass, &miter))) { MonoError error; if (strcmp (m->name, mdata->name)) continue; MonoMethodSignature *sig = mono_method_signature (m); if (!sig) continue; if (sig->param_count != mdata->param_count) continue; if (mdata->inst) { resolve_ginst (mdata->inst); if (!mdata->inst->inst) continue; MonoGenericContext ctx; memset (&ctx, 0, sizeof (ctx)); ctx.method_inst = mdata->inst->inst; m = mono_class_inflate_generic_method_checked (m, &ctx, &error); if (!m) continue; sig = mono_method_signature_checked (m, &error); if (!is_ok (&error)) { mono_error_cleanup (&error); continue; } } char *sig_str = mono_signature_full_name (sig); gboolean match = !strcmp (sig_str, mdata->signature); g_free (sig_str); if (!match) continue; //printf ("%s\n", mono_method_full_name (m, 1)); mdata->method = m; break; } if (!mdata->method) { if (acfg->aot_opts.verbose) printf ("Unable to load method '%s' from class '%s', not found.\n", mdata->name, mono_class_full_name (klass)); } } } static gboolean inst_references_image (MonoGenericInst *inst, MonoImage *image) { int i; for (i = 0; i < inst->type_argc; ++i) { MonoClass *k = mono_class_from_mono_type (inst->type_argv [i]); if (k->image == image) return TRUE; if (mono_class_is_ginst (k)) { MonoGenericInst *kinst = mono_class_get_context (k)->class_inst; if (inst_references_image (kinst, image)) return TRUE; } } return FALSE; } static gboolean is_local_inst (MonoGenericInst *inst, MonoImage *image) { int i; for (i = 0; i < inst->type_argc; ++i) { MonoClass *k = mono_class_from_mono_type (inst->type_argv [i]); if (!MONO_TYPE_IS_PRIMITIVE (inst->type_argv [i]) && k->image != image) return FALSE; } return TRUE; } static void add_profile_instances (MonoAotCompile *acfg, ProfileData *data) { GHashTableIter iter; gpointer key, value; int count = 0; if (!data) return; if (acfg->aot_opts.profile_only) { /* Add methods referenced by the profile */ g_hash_table_iter_init (&iter, data->methods); while (g_hash_table_iter_next (&iter, &key, &value)) { MethodProfileData *mdata = (MethodProfileData*)value; MonoMethod *m = mdata->method; if (!m) continue; if (m->is_inflated) continue; add_extra_method (acfg, m); g_hash_table_insert (acfg->profile_methods, m, m); count ++; } } /* * Add method instances 'related' to this assembly to the AOT image. */ g_hash_table_iter_init (&iter, data->methods); while (g_hash_table_iter_next (&iter, &key, &value)) { MethodProfileData *mdata = (MethodProfileData*)value; MonoMethod *m = mdata->method; MonoGenericContext *ctx; if (!m) continue; if (!m->is_inflated) continue; ctx = mono_method_get_context (m); /* For simplicity, add instances which reference the assembly we are compiling */ if (((ctx->class_inst && inst_references_image (ctx->class_inst, acfg->image)) || (ctx->method_inst && inst_references_image (ctx->method_inst, acfg->image))) && !mono_method_is_generic_sharable_full (m, FALSE, FALSE, FALSE)) { //printf ("%s\n", mono_method_full_name (m, TRUE)); add_extra_method (acfg, m); count ++; } else if (m->klass->image == acfg->image && ((ctx->class_inst && is_local_inst (ctx->class_inst, acfg->image)) || (ctx->method_inst && is_local_inst (ctx->method_inst, acfg->image))) && !mono_method_is_generic_sharable_full (m, FALSE, FALSE, FALSE)) { /* Add instances where the gtd is in the assembly and its inflated with types from this assembly or corlib */ //printf ("%s\n", mono_method_full_name (m, TRUE)); add_extra_method (acfg, m); count ++; } /* * FIXME: We might skip some instances, for example: * Foo won't be compiled when compiling Foo's assembly since it doesn't match the first case, * and it won't be compiled when compiling Bar's assembly if Foo's assembly is not loaded. */ } printf ("Added %d methods from profile.\n", count); } static void init_got_info (GotInfo *info) { int i; info->patch_to_got_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal); info->patch_to_got_offset_by_type = g_new0 (GHashTable*, MONO_PATCH_INFO_NUM); for (i = 0; i < MONO_PATCH_INFO_NUM; ++i) info->patch_to_got_offset_by_type [i] = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal); info->got_patches = g_ptr_array_new (); } static MonoAotCompile* acfg_create (MonoAssembly *ass, guint32 opts) { MonoImage *image = ass->image; MonoAotCompile *acfg; acfg = g_new0 (MonoAotCompile, 1); acfg->methods = g_ptr_array_new (); acfg->method_indexes = g_hash_table_new (NULL, NULL); acfg->method_depth = g_hash_table_new (NULL, NULL); acfg->plt_offset_to_entry = g_hash_table_new (NULL, NULL); acfg->patch_to_plt_entry = g_new0 (GHashTable*, MONO_PATCH_INFO_NUM); acfg->method_to_cfg = g_hash_table_new (NULL, NULL); acfg->token_info_hash = g_hash_table_new_full (NULL, NULL, NULL, NULL); acfg->method_to_pinvoke_import = g_hash_table_new_full (NULL, NULL, NULL, g_free); acfg->image_hash = g_hash_table_new (NULL, NULL); acfg->image_table = g_ptr_array_new (); acfg->globals = g_ptr_array_new (); acfg->image = image; acfg->opts = opts; /* TODO: Write out set of SIMD instructions used, rather than just those available */ acfg->simd_opts = mono_arch_cpu_enumerate_simd_versions (); acfg->mempool = mono_mempool_new (); acfg->extra_methods = g_ptr_array_new (); acfg->unwind_info_offsets = g_hash_table_new (NULL, NULL); acfg->unwind_ops = g_ptr_array_new (); acfg->method_label_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL); acfg->method_order = g_ptr_array_new (); acfg->export_names = g_hash_table_new (NULL, NULL); acfg->klass_blob_hash = g_hash_table_new (NULL, NULL); acfg->method_blob_hash = g_hash_table_new (NULL, NULL); acfg->plt_entry_debug_sym_cache = g_hash_table_new (g_str_hash, g_str_equal); acfg->gsharedvt_in_signatures = g_hash_table_new ((GHashFunc)mono_signature_hash, (GEqualFunc)mono_metadata_signature_equal); acfg->gsharedvt_out_signatures = g_hash_table_new ((GHashFunc)mono_signature_hash, (GEqualFunc)mono_metadata_signature_equal); acfg->profile_methods = g_hash_table_new (NULL, NULL); mono_os_mutex_init_recursive (&acfg->mutex); init_got_info (&acfg->got_info); init_got_info (&acfg->llvm_got_info); return acfg; } static void got_info_free (GotInfo *info) { int i; for (i = 0; i < MONO_PATCH_INFO_NUM; ++i) g_hash_table_destroy (info->patch_to_got_offset_by_type [i]); g_free (info->patch_to_got_offset_by_type); g_hash_table_destroy (info->patch_to_got_offset); g_ptr_array_free (info->got_patches, TRUE); } static void acfg_free (MonoAotCompile *acfg) { int i; mono_img_writer_destroy (acfg->w); for (i = 0; i < acfg->nmethods; ++i) if (acfg->cfgs [i]) mono_destroy_compile (acfg->cfgs [i]); g_free (acfg->cfgs); g_free (acfg->static_linking_symbol); g_free (acfg->got_symbol); g_free (acfg->plt_symbol); g_ptr_array_free (acfg->methods, TRUE); g_ptr_array_free (acfg->image_table, TRUE); g_ptr_array_free (acfg->globals, TRUE); g_ptr_array_free (acfg->unwind_ops, TRUE); g_hash_table_destroy (acfg->method_indexes); g_hash_table_destroy (acfg->method_depth); g_hash_table_destroy (acfg->plt_offset_to_entry); for (i = 0; i < MONO_PATCH_INFO_NUM; ++i) { if (acfg->patch_to_plt_entry [i]) g_hash_table_destroy (acfg->patch_to_plt_entry [i]); } g_free (acfg->patch_to_plt_entry); g_hash_table_destroy (acfg->method_to_cfg); g_hash_table_destroy (acfg->token_info_hash); g_hash_table_destroy (acfg->method_to_pinvoke_import); g_hash_table_destroy (acfg->image_hash); g_hash_table_destroy (acfg->unwind_info_offsets); g_hash_table_destroy (acfg->method_label_hash); if (acfg->typespec_classes) g_hash_table_destroy (acfg->typespec_classes); g_hash_table_destroy (acfg->export_names); g_hash_table_destroy (acfg->plt_entry_debug_sym_cache); g_hash_table_destroy (acfg->klass_blob_hash); g_hash_table_destroy (acfg->method_blob_hash); got_info_free (&acfg->got_info); got_info_free (&acfg->llvm_got_info); mono_mempool_destroy (acfg->mempool); g_free (acfg); } #define WRAPPER(e,n) n, static const char* const wrapper_type_names [MONO_WRAPPER_NUM + 1] = { #include "mono/metadata/wrapper-types.h" NULL }; static G_GNUC_UNUSED const char* get_wrapper_type_name (int type) { return wrapper_type_names [type]; } //#define DUMP_PLT //#define DUMP_GOT static void aot_dump (MonoAotCompile *acfg) { FILE *dumpfile; char * dumpname; JsonWriter writer; mono_json_writer_init (&writer); mono_json_writer_object_begin(&writer); // Methods mono_json_writer_indent (&writer); mono_json_writer_object_key(&writer, "methods"); mono_json_writer_array_begin (&writer); int i; for (i = 0; i < acfg->nmethods; ++i) { MonoCompile *cfg; MonoMethod *method; MonoClass *klass; cfg = acfg->cfgs [i]; if (!cfg) continue; method = cfg->orig_method; mono_json_writer_indent (&writer); mono_json_writer_object_begin(&writer); mono_json_writer_indent (&writer); mono_json_writer_object_key(&writer, "name"); mono_json_writer_printf (&writer, "\"%s\",\n", method->name); mono_json_writer_indent (&writer); mono_json_writer_object_key(&writer, "signature"); mono_json_writer_printf (&writer, "\"%s\",\n", mono_method_get_full_name (method)); mono_json_writer_indent (&writer); mono_json_writer_object_key(&writer, "code_size"); mono_json_writer_printf (&writer, "\"%d\",\n", cfg->code_size); klass = method->klass; mono_json_writer_indent (&writer); mono_json_writer_object_key(&writer, "class"); mono_json_writer_printf (&writer, "\"%s\",\n", klass->name); mono_json_writer_indent (&writer); mono_json_writer_object_key(&writer, "namespace"); mono_json_writer_printf (&writer, "\"%s\",\n", klass->name_space); mono_json_writer_indent (&writer); mono_json_writer_object_key(&writer, "wrapper_type"); mono_json_writer_printf (&writer, "\"%s\",\n", get_wrapper_type_name(method->wrapper_type)); mono_json_writer_indent_pop (&writer); mono_json_writer_indent (&writer); mono_json_writer_object_end (&writer); mono_json_writer_printf (&writer, ",\n"); } mono_json_writer_indent_pop (&writer); mono_json_writer_indent (&writer); mono_json_writer_array_end (&writer); mono_json_writer_printf (&writer, ",\n"); // PLT entries #ifdef DUMP_PLT mono_json_writer_indent_push (&writer); mono_json_writer_indent (&writer); mono_json_writer_object_key(&writer, "plt"); mono_json_writer_array_begin (&writer); for (i = 0; i < acfg->plt_offset; ++i) { MonoPltEntry *plt_entry = NULL; MonoJumpInfo *ji; if (i == 0) /* * The first plt entry is unused. */ continue; plt_entry = g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i)); ji = plt_entry->ji; mono_json_writer_indent (&writer); mono_json_writer_printf (&writer, "{ "); mono_json_writer_object_key(&writer, "symbol"); mono_json_writer_printf (&writer, "\"%s\" },\n", plt_entry->symbol); } mono_json_writer_indent_pop (&writer); mono_json_writer_indent (&writer); mono_json_writer_array_end (&writer); mono_json_writer_printf (&writer, ",\n"); #endif // GOT entries #ifdef DUMP_GOT mono_json_writer_indent_push (&writer); mono_json_writer_indent (&writer); mono_json_writer_object_key(&writer, "got"); mono_json_writer_array_begin (&writer); mono_json_writer_indent_push (&writer); for (i = 0; i < acfg->got_info.got_patches->len; ++i) { MonoJumpInfo *ji = g_ptr_array_index (acfg->got_info.got_patches, i); mono_json_writer_indent (&writer); mono_json_writer_printf (&writer, "{ "); mono_json_writer_object_key(&writer, "patch_name"); mono_json_writer_printf (&writer, "\"%s\" },\n", get_patch_name (ji->type)); } mono_json_writer_indent_pop (&writer); mono_json_writer_indent (&writer); mono_json_writer_array_end (&writer); mono_json_writer_printf (&writer, ",\n"); #endif mono_json_writer_indent_pop (&writer); mono_json_writer_indent (&writer); mono_json_writer_object_end (&writer); dumpname = g_strdup_printf ("%s.json", g_path_get_basename (acfg->image->name)); dumpfile = fopen (dumpname, "w+"); g_free (dumpname); fprintf (dumpfile, "%s", writer.text->str); fclose (dumpfile); mono_json_writer_destroy (&writer); } static const char *preinited_jit_icalls[] = { "mono_aot_init_llvm_method", "mono_aot_init_gshared_method_this", "mono_aot_init_gshared_method_mrgctx", "mono_aot_init_gshared_method_vtable", "mono_llvm_throw_corlib_exception", "mono_init_vtable_slot", "mono_helper_ldstr_mscorlib" }; static void add_preinit_got_slots (MonoAotCompile *acfg) { MonoJumpInfo *ji; int i; /* * Allocate the first few GOT entries to information which is needed frequently, or it is needed * during method initialization etc. */ ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo)); ji->type = MONO_PATCH_INFO_IMAGE; ji->data.image = acfg->image; get_got_offset (acfg, FALSE, ji); get_got_offset (acfg, TRUE, ji); ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo)); ji->type = MONO_PATCH_INFO_MSCORLIB_GOT_ADDR; get_got_offset (acfg, FALSE, ji); get_got_offset (acfg, TRUE, ji); ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo)); ji->type = MONO_PATCH_INFO_GC_CARD_TABLE_ADDR; get_got_offset (acfg, FALSE, ji); get_got_offset (acfg, TRUE, ji); ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo)); ji->type = MONO_PATCH_INFO_GC_NURSERY_START; get_got_offset (acfg, FALSE, ji); get_got_offset (acfg, TRUE, ji); ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo)); ji->type = MONO_PATCH_INFO_AOT_MODULE; get_got_offset (acfg, FALSE, ji); get_got_offset (acfg, TRUE, ji); ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo)); ji->type = MONO_PATCH_INFO_GC_NURSERY_BITS; get_got_offset (acfg, FALSE, ji); get_got_offset (acfg, TRUE, ji); for (i = 0; i < TLS_KEY_NUM; i++) { ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo)); ji->type = MONO_PATCH_INFO_GET_TLS_TRAMP; ji->data.index = i; get_got_offset (acfg, FALSE, ji); get_got_offset (acfg, TRUE, ji); ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo)); ji->type = MONO_PATCH_INFO_SET_TLS_TRAMP; ji->data.index = i; get_got_offset (acfg, FALSE, ji); get_got_offset (acfg, TRUE, ji); } ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo)); ji->type = MONO_PATCH_INFO_JIT_THREAD_ATTACH; get_got_offset (acfg, FALSE, ji); get_got_offset (acfg, TRUE, ji); /* Called by native-to-managed wrappers on possibly unattached threads */ ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfo)); ji->type = MONO_PATCH_INFO_JIT_ICALL_ADDR_NOCALL; ji->data.name = "mono_threads_attach_coop"; get_got_offset (acfg, FALSE, ji); get_got_offset (acfg, TRUE, ji); for (i = 0; i < sizeof (preinited_jit_icalls) / sizeof (char*); ++i) { ji = (MonoJumpInfo *)mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile)); ji->type = MONO_PATCH_INFO_INTERNAL_METHOD; ji->data.name = preinited_jit_icalls [i]; get_got_offset (acfg, FALSE, ji); get_got_offset (acfg, TRUE, ji); } acfg->nshared_got_entries = acfg->got_offset; } int mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options) { MonoImage *image = ass->image; int i, res; gint64 all_sizes; MonoAotCompile *acfg; char *outfile_name, *tmp_outfile_name, *p; char llvm_stats_msg [256]; TV_DECLARE (atv); TV_DECLARE (btv); acfg = acfg_create (ass, opts); memset (&acfg->aot_opts, 0, sizeof (acfg->aot_opts)); acfg->aot_opts.write_symbols = TRUE; acfg->aot_opts.ntrampolines = 4096; acfg->aot_opts.nrgctx_trampolines = 4096; acfg->aot_opts.nimt_trampolines = 512; acfg->aot_opts.nrgctx_fetch_trampolines = 128; acfg->aot_opts.ngsharedvt_arg_trampolines = 512; acfg->aot_opts.llvm_path = g_strdup (""); acfg->aot_opts.temp_path = g_strdup (""); #ifdef MONOTOUCH acfg->aot_opts.use_trampolines_page = TRUE; #endif mono_aot_parse_options (aot_options, &acfg->aot_opts); if (acfg->aot_opts.logfile) { acfg->logfile = fopen (acfg->aot_opts.logfile, "a+"); } if (acfg->aot_opts.data_outfile) { acfg->data_outfile = fopen (acfg->aot_opts.data_outfile, "w+"); if (!acfg->data_outfile) { aot_printerrf (acfg, "Unable to create file '%s': %s\n", acfg->aot_opts.data_outfile, strerror (errno)); return 1; } acfg->flags = (MonoAotFileFlags)(acfg->flags | MONO_AOT_FILE_FLAG_SEPARATE_DATA); } //acfg->aot_opts.print_skipped_methods = TRUE; #if !defined(MONO_ARCH_GSHAREDVT_SUPPORTED) if (acfg->opts & MONO_OPT_GSHAREDVT) { aot_printerrf (acfg, "-O=gsharedvt not supported on this platform.\n"); return 1; } if (acfg->aot_opts.llvm_only) { aot_printerrf (acfg, "--aot=llvmonly requires a runtime that supports gsharedvt.\n"); return 1; } #else if (acfg->aot_opts.llvm_only || mono_aot_mode_is_full (&acfg->aot_opts) || mono_aot_mode_is_hybrid (&acfg->aot_opts)) acfg->opts |= MONO_OPT_GSHAREDVT; #endif #if !defined(ENABLE_LLVM) if (acfg->aot_opts.llvm_only) { aot_printerrf (acfg, "--aot=llvmonly requires a runtime compiled with llvm support.\n"); return 1; } #endif if (acfg->opts & MONO_OPT_GSHAREDVT) mono_set_generic_sharing_vt_supported (TRUE); aot_printf (acfg, "Mono Ahead of Time compiler - compiling assembly %s\n", image->name); generate_aotid ((guint8*) &acfg->image->aotid); char *aotid = mono_guid_to_string (acfg->image->aotid); aot_printf (acfg, "AOTID %s\n", aotid); g_free (aotid); #ifndef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES if (mono_aot_mode_is_full (&acfg->aot_opts)) { aot_printerrf (acfg, "--aot=full is not supported on this platform.\n"); return 1; } #endif if (acfg->aot_opts.direct_pinvoke && !acfg->aot_opts.static_link) { aot_printerrf (acfg, "The 'direct-pinvoke' AOT option also requires the 'static' AOT option.\n"); return 1; } if (acfg->aot_opts.static_link) acfg->aot_opts.asm_writer = TRUE; if (acfg->aot_opts.soft_debug) { MonoDebugOptions *opt = mini_get_debug_options (); opt->mdb_optimizations = TRUE; opt->gen_sdb_seq_points = TRUE; if (!mono_debug_enabled ()) { aot_printerrf (acfg, "The soft-debug AOT option requires the --debug option.\n"); return 1; } acfg->flags = (MonoAotFileFlags)(acfg->flags | MONO_AOT_FILE_FLAG_DEBUG); } if (mono_use_llvm || acfg->aot_opts.llvm) { acfg->llvm = TRUE; acfg->aot_opts.asm_writer = TRUE; acfg->flags = (MonoAotFileFlags)(acfg->flags | MONO_AOT_FILE_FLAG_WITH_LLVM); if (acfg->aot_opts.soft_debug) { aot_printerrf (acfg, "The 'soft-debug' option is not supported when compiling with LLVM.\n"); return 1; } mini_llvm_init (); if (acfg->aot_opts.asm_only && !acfg->aot_opts.llvm_outfile) { aot_printerrf (acfg, "Compiling with LLVM and the asm-only option requires the llvm-outfile= option.\n"); return 1; } } if (mono_aot_mode_is_full (&acfg->aot_opts)) { acfg->flags = (MonoAotFileFlags)(acfg->flags | MONO_AOT_FILE_FLAG_FULL_AOT); acfg->is_full_aot = TRUE; } if (mono_threads_is_coop_enabled ()) acfg->flags = (MonoAotFileFlags)(acfg->flags | MONO_AOT_FILE_FLAG_SAFEPOINTS); if (acfg->aot_opts.instances_logfile_path) { acfg->instances_logfile = fopen (acfg->aot_opts.instances_logfile_path, "w"); if (!acfg->instances_logfile) { aot_printerrf (acfg, "Unable to create logfile: '%s'.\n", acfg->aot_opts.instances_logfile_path); return 1; } } if (acfg->aot_opts.profile_files) { GList *l; for (l = acfg->aot_opts.profile_files; l; l = l->next) { load_profile_file (acfg, (char*)l->data); } } if (!mono_aot_mode_is_interp (&acfg->aot_opts)) { int method_index; for (method_index = 0; method_index < acfg->image->tables [MONO_TABLE_METHOD].rows; ++method_index) { g_ptr_array_add (acfg->method_order,GUINT_TO_POINTER (method_index)); } } acfg->num_trampolines [MONO_AOT_TRAMP_SPECIFIC] = mono_aot_mode_is_full (&acfg->aot_opts) ? acfg->aot_opts.ntrampolines : 0; #ifdef MONO_ARCH_GSHARED_SUPPORTED acfg->num_trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = mono_aot_mode_is_full (&acfg->aot_opts) ? acfg->aot_opts.nrgctx_trampolines : 0; #endif acfg->num_trampolines [MONO_AOT_TRAMP_IMT] = mono_aot_mode_is_full (&acfg->aot_opts) ? acfg->aot_opts.nimt_trampolines : 0; #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED if (acfg->opts & MONO_OPT_GSHAREDVT) acfg->num_trampolines [MONO_AOT_TRAMP_GSHAREDVT_ARG] = mono_aot_mode_is_full (&acfg->aot_opts) ? acfg->aot_opts.ngsharedvt_arg_trampolines : 0; #endif acfg->temp_prefix = mono_img_writer_get_temp_label_prefix (NULL); arch_init (acfg); if (mono_use_llvm || acfg->aot_opts.llvm) { /* * Emit all LLVM code into a separate assembly/object file and link with it * normally. */ if (!acfg->aot_opts.asm_only && acfg->llvm_owriter_supported) { acfg->llvm_owriter = TRUE; } else if (acfg->aot_opts.llvm_outfile) { int len = strlen (acfg->aot_opts.llvm_outfile); if (len >= 2 && acfg->aot_opts.llvm_outfile [len - 2] == '.' && acfg->aot_opts.llvm_outfile [len - 1] == 'o') acfg->llvm_owriter = TRUE; } } if (acfg->llvm && acfg->thumb_mixed) acfg->flags = (MonoAotFileFlags)(acfg->flags | MONO_AOT_FILE_FLAG_LLVM_THUMB); if (acfg->aot_opts.llvm_only) acfg->flags = (MonoAotFileFlags)(acfg->flags | MONO_AOT_FILE_FLAG_LLVM_ONLY); acfg->assembly_name_sym = g_strdup (acfg->image->assembly->aname.name); /* Get rid of characters which cannot occur in symbols */ for (p = acfg->assembly_name_sym; *p; ++p) { if (!(isalnum (*p) || *p == '_')) *p = '_'; } acfg->global_prefix = g_strdup_printf ("mono_aot_%s", acfg->assembly_name_sym); acfg->plt_symbol = g_strdup_printf ("%s_plt", acfg->global_prefix); acfg->got_symbol = g_strdup_printf ("%s_got", acfg->global_prefix); if (acfg->llvm) { acfg->llvm_got_symbol = g_strdup_printf ("%s_llvm_got", acfg->global_prefix); acfg->llvm_eh_frame_symbol = g_strdup_printf ("%s_eh_frame", acfg->global_prefix); } acfg->method_index = 1; if (mono_aot_mode_is_full (&acfg->aot_opts) || mono_aot_mode_is_hybrid (&acfg->aot_opts)) mono_set_partial_sharing_supported (TRUE); if (!mono_aot_mode_is_interp (&acfg->aot_opts)) { res = collect_methods (acfg); if (!res) return 1; } { GList *l; for (l = acfg->profile_data; l; l = l->next) resolve_profile_data (acfg, (ProfileData*)l->data); for (l = acfg->profile_data; l; l = l->next) add_profile_instances (acfg, (ProfileData*)l->data); } acfg->cfgs_size = acfg->methods->len + 32; acfg->cfgs = g_new0 (MonoCompile*, acfg->cfgs_size); /* PLT offset 0 is reserved for the PLT trampoline */ acfg->plt_offset = 1; add_preinit_got_slots (acfg); #ifdef ENABLE_LLVM if (acfg->llvm) { llvm_acfg = acfg; mono_llvm_create_aot_module (acfg->image->assembly, acfg->global_prefix, acfg->nshared_got_entries, TRUE, acfg->aot_opts.static_link, acfg->aot_opts.llvm_only); } #endif if (mono_aot_mode_is_interp (&acfg->aot_opts)) { MonoMethod *wrapper; MonoMethodSignature *sig; /* object object:interp_in_static (object,intptr,intptr,intptr) */ sig = mono_create_icall_signature ("object object ptr ptr ptr"); wrapper = mini_get_interp_in_wrapper (sig); add_method (acfg, wrapper); /* int object:interp_in_static (intptr,int,intptr) */ sig = mono_create_icall_signature ("int32 ptr int32 ptr"); wrapper = mini_get_interp_in_wrapper (sig); add_method (acfg, wrapper); /* void object:interp_in_static (object,intptr,intptr,intptr) */ sig = mono_create_icall_signature ("void object ptr ptr ptr"); wrapper = mini_get_interp_in_wrapper (sig); add_method (acfg, wrapper); } TV_GETTIME (atv); compile_methods (acfg); TV_GETTIME (btv); acfg->stats.jit_time = TV_ELAPSED (atv, btv); TV_GETTIME (atv); #ifdef ENABLE_LLVM if (acfg->llvm) { if (acfg->aot_opts.asm_only) { if (acfg->aot_opts.outfile) { acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile); acfg->tmpbasename = g_strdup (acfg->tmpfname); } else { acfg->tmpbasename = g_strdup_printf ("%s", acfg->image->name); acfg->tmpfname = g_strdup_printf ("%s.s", acfg->tmpbasename); } g_assert (acfg->aot_opts.llvm_outfile); acfg->llvm_sfile = g_strdup (acfg->aot_opts.llvm_outfile); if (acfg->llvm_owriter) acfg->llvm_ofile = g_strdup (acfg->aot_opts.llvm_outfile); else acfg->llvm_sfile = g_strdup (acfg->aot_opts.llvm_outfile); } else { acfg->tmpbasename = (strcmp (acfg->aot_opts.temp_path, "") == 0) ? g_strdup_printf ("%s", "temp") : g_build_filename (acfg->aot_opts.temp_path, "temp", NULL); acfg->tmpfname = g_strdup_printf ("%s.s", acfg->tmpbasename); acfg->llvm_sfile = g_strdup_printf ("%s-llvm.s", acfg->tmpbasename); acfg->llvm_ofile = g_strdup_printf ("%s-llvm.o", acfg->tmpbasename); } } #endif if (acfg->aot_opts.asm_only && !acfg->aot_opts.llvm_only) { if (acfg->aot_opts.outfile) acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile); else acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name); acfg->fp = fopen (acfg->tmpfname, "w+"); } else { if (strcmp (acfg->aot_opts.temp_path, "") == 0) { int i = g_file_open_tmp ("mono_aot_XXXXXX", &acfg->tmpfname, NULL); acfg->fp = fdopen (i, "w+"); } else { acfg->tmpbasename = g_build_filename (acfg->aot_opts.temp_path, "temp", NULL); acfg->tmpfname = g_strdup_printf ("%s.s", acfg->tmpbasename); acfg->fp = fopen (acfg->tmpfname, "w+"); } } if (acfg->fp == 0 && !acfg->aot_opts.llvm_only) { aot_printerrf (acfg, "Unable to open file '%s': %s\n", acfg->tmpfname, strerror (errno)); return 1; } if (acfg->fp) acfg->w = mono_img_writer_create (acfg->fp, FALSE); tmp_outfile_name = NULL; outfile_name = NULL; /* Compute symbols for methods */ for (i = 0; i < acfg->nmethods; ++i) { if (acfg->cfgs [i]) { MonoCompile *cfg = acfg->cfgs [i]; int method_index = get_method_index (acfg, cfg->orig_method); if (COMPILE_LLVM (cfg)) cfg->asm_symbol = g_strdup_printf ("%s%s", acfg->llvm_label_prefix, cfg->llvm_method_name); else if (acfg->global_symbols || acfg->llvm) cfg->asm_symbol = get_debug_sym (cfg->orig_method, "", acfg->method_label_hash); else cfg->asm_symbol = g_strdup_printf ("%s%sm_%x", acfg->temp_prefix, acfg->llvm_label_prefix, method_index); cfg->asm_debug_symbol = cfg->asm_symbol; } } if (acfg->aot_opts.dwarf_debug && acfg->aot_opts.gnu_asm) { /* * CLANG supports GAS .file/.loc directives, so emit line number information this way */ acfg->gas_line_numbers = TRUE; } #ifdef EMIT_DWARF_INFO if ((!acfg->aot_opts.nodebug || acfg->aot_opts.dwarf_debug) && acfg->has_jitted_code) { if (acfg->aot_opts.dwarf_debug && !mono_debug_enabled ()) { aot_printerrf (acfg, "The dwarf AOT option requires the --debug option.\n"); return 1; } acfg->dwarf = mono_dwarf_writer_create (acfg->w, NULL, 0, !acfg->gas_line_numbers); } #endif /* EMIT_DWARF_INFO */ if (acfg->w) mono_img_writer_emit_start (acfg->w); if (acfg->dwarf) mono_dwarf_writer_emit_base_info (acfg->dwarf, g_path_get_basename (acfg->image->name), mono_unwind_get_cie_program ()); emit_code (acfg); emit_info (acfg); emit_extra_methods (acfg); emit_trampolines (acfg); emit_class_name_table (acfg); emit_got_info (acfg, FALSE); if (acfg->llvm) emit_got_info (acfg, TRUE); emit_exception_info (acfg); emit_unwind_info (acfg); emit_class_info (acfg); emit_plt (acfg); emit_image_table (acfg); emit_got (acfg); { /* * The managed allocators are GC specific, so can't use an AOT image created by one GC * in another. */ const char *gc_name = mono_gc_get_gc_name (); acfg->gc_name_offset = add_to_blob (acfg, (guint8*)gc_name, strlen (gc_name) + 1); } emit_blob (acfg); emit_objc_selectors (acfg); emit_globals (acfg); emit_file_info (acfg); emit_library_info (acfg); if (acfg->dwarf) { emit_dwarf_info (acfg); mono_dwarf_writer_close (acfg->dwarf); } emit_mem_end (acfg); if (acfg->need_pt_gnu_stack) { /* This is required so the .so doesn't have an executable stack */ /* The bin writer already emits this */ fprintf (acfg->fp, "\n.section .note.GNU-stack,\"\",@progbits\n"); } if (acfg->aot_opts.data_outfile) fclose (acfg->data_outfile); #ifdef ENABLE_LLVM if (acfg->llvm) { gboolean res; res = emit_llvm_file (acfg); if (!res) return 1; } #endif TV_GETTIME (btv); acfg->stats.gen_time = TV_ELAPSED (atv, btv); if (acfg->llvm) sprintf (llvm_stats_msg, ", LLVM: %d (%d%%)", acfg->stats.llvm_count, acfg->stats.mcount ? (acfg->stats.llvm_count * 100) / acfg->stats.mcount : 100); else strcpy (llvm_stats_msg, ""); all_sizes = acfg->stats.code_size + acfg->stats.info_size + acfg->stats.ex_info_size + acfg->stats.unwind_info_size + acfg->stats.class_info_size + acfg->stats.got_info_size + acfg->stats.offsets_size + acfg->stats.plt_size; aot_printf (acfg, "Code: %d(%d%%) Info: %d(%d%%) Ex Info: %d(%d%%) Unwind Info: %d(%d%%) Class Info: %d(%d%%) PLT: %d(%d%%) GOT Info: %d(%d%%) Offsets: %d(%d%%) GOT: %d\n", (int)acfg->stats.code_size, (int)(acfg->stats.code_size * 100 / all_sizes), (int)acfg->stats.info_size, (int)(acfg->stats.info_size * 100 / all_sizes), (int)acfg->stats.ex_info_size, (int)(acfg->stats.ex_info_size * 100 / all_sizes), (int)acfg->stats.unwind_info_size, (int)(acfg->stats.unwind_info_size * 100 / all_sizes), (int)acfg->stats.class_info_size, (int)(acfg->stats.class_info_size * 100 / all_sizes), acfg->stats.plt_size ? (int)acfg->stats.plt_size : (int)acfg->plt_offset, acfg->stats.plt_size ? (int)(acfg->stats.plt_size * 100 / all_sizes) : 0, (int)acfg->stats.got_info_size, (int)(acfg->stats.got_info_size * 100 / all_sizes), (int)acfg->stats.offsets_size, (int)(acfg->stats.offsets_size * 100 / all_sizes), (int)(acfg->got_offset * sizeof (gpointer))); aot_printf (acfg, "Compiled: %d/%d (%d%%)%s, No GOT slots: %d (%d%%), Direct calls: %d (%d%%)\n", acfg->stats.ccount, acfg->stats.mcount, acfg->stats.mcount ? (acfg->stats.ccount * 100) / acfg->stats.mcount : 100, llvm_stats_msg, acfg->stats.methods_without_got_slots, acfg->stats.mcount ? (acfg->stats.methods_without_got_slots * 100) / acfg->stats.mcount : 100, acfg->stats.direct_calls, acfg->stats.all_calls ? (acfg->stats.direct_calls * 100) / acfg->stats.all_calls : 100); if (acfg->stats.genericcount) aot_printf (acfg, "%d methods are generic (%d%%)\n", acfg->stats.genericcount, acfg->stats.mcount ? (acfg->stats.genericcount * 100) / acfg->stats.mcount : 100); if (acfg->stats.abscount) aot_printf (acfg, "%d methods contain absolute addresses (%d%%)\n", acfg->stats.abscount, acfg->stats.mcount ? (acfg->stats.abscount * 100) / acfg->stats.mcount : 100); if (acfg->stats.lmfcount) aot_printf (acfg, "%d methods contain lmf pointers (%d%%)\n", acfg->stats.lmfcount, acfg->stats.mcount ? (acfg->stats.lmfcount * 100) / acfg->stats.mcount : 100); if (acfg->stats.ocount) aot_printf (acfg, "%d methods have other problems (%d%%)\n", acfg->stats.ocount, acfg->stats.mcount ? (acfg->stats.ocount * 100) / acfg->stats.mcount : 100); TV_GETTIME (atv); if (acfg->w) { res = mono_img_writer_emit_writeout (acfg->w); if (res != 0) { acfg_free (acfg); return res; } res = compile_asm (acfg); if (res != 0) { acfg_free (acfg); return res; } } TV_GETTIME (btv); acfg->stats.link_time = TV_ELAPSED (atv, btv); if (acfg->aot_opts.stats) { int i; aot_printf (acfg, "GOT slot distribution:\n"); for (i = 0; i < MONO_PATCH_INFO_NUM; ++i) if (acfg->stats.got_slot_types [i]) aot_printf (acfg, "\t%s: %d (%d)\n", get_patch_name (i), acfg->stats.got_slot_types [i], acfg->stats.got_slot_info_sizes [i]); aot_printf (acfg, "\nMethod stats:\n"); aot_printf (acfg, "\tNormal: %d\n", acfg->stats.method_categories [METHOD_CAT_NORMAL]); aot_printf (acfg, "\tInstance: %d\n", acfg->stats.method_categories [METHOD_CAT_INST]); aot_printf (acfg, "\tGSharedvt: %d\n", acfg->stats.method_categories [METHOD_CAT_GSHAREDVT]); aot_printf (acfg, "\tWrapper: %d\n", acfg->stats.method_categories [METHOD_CAT_WRAPPER]); } aot_printf (acfg, "JIT time: %d ms, Generation time: %d ms, Assembly+Link time: %d ms.\n", acfg->stats.jit_time / 1000, acfg->stats.gen_time / 1000, acfg->stats.link_time / 1000); if (acfg->aot_opts.dump_json) aot_dump (acfg); acfg_free (acfg); return 0; } #else /* AOT disabled */ void* mono_aot_readonly_field_override (MonoClassField *field) { return NULL; } int mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options) { return 0; } gboolean mono_aot_is_shared_got_offset (int offset) { return FALSE; } #endif