2 * aot-compiler.c: mono Ahead of Time compiler
5 * Dietmar Maurer (dietmar@ximian.com)
6 * Zoltan Varga (vargaz@gmail.com)
8 * (C) 2002 Ximian, Inc.
9 * Copyright 2003-2011 Novell, Inc
10 * Copyright 2011 Xamarin Inc (http://www.xamarin.com)
14 #include <sys/types.h>
34 #include <mono/metadata/abi-details.h>
35 #include <mono/metadata/tabledefs.h>
36 #include <mono/metadata/class.h>
37 #include <mono/metadata/object.h>
38 #include <mono/metadata/tokentype.h>
39 #include <mono/metadata/appdomain.h>
40 #include <mono/metadata/debug-helpers.h>
41 #include <mono/metadata/assembly.h>
42 #include <mono/metadata/metadata-internals.h>
43 #include <mono/metadata/marshal.h>
44 #include <mono/metadata/gc-internal.h>
45 #include <mono/metadata/monitor.h>
46 #include <mono/metadata/mempool-internals.h>
47 #include <mono/metadata/mono-endian.h>
48 #include <mono/metadata/threads-types.h>
49 #include <mono/utils/mono-logger-internal.h>
50 #include <mono/utils/mono-compiler.h>
51 #include <mono/utils/mono-time.h>
52 #include <mono/utils/mono-mmap.h>
55 #include "seq-points.h"
56 #include "image-writer.h"
57 #include "dwarfwriter.h"
60 #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
62 #if defined(__linux__) || defined(__native_client_codegen__)
63 #define RODATA_SECT ".rodata"
64 #elif defined(TARGET_MACH)
65 #define RODATA_SECT ".section __TEXT, __const"
67 #define RODATA_SECT ".text"
70 #define TV_DECLARE(name) gint64 name
71 #define TV_GETTIME(tv) tv = mono_100ns_ticks ()
72 #define TV_ELAPSED(start,end) (((end) - (start)) / 10)
75 #define SHARED_EXT ".dll"
76 #elif defined(__ppc__) && defined(TARGET_MACH)
77 #define SHARED_EXT ".dylib"
78 #elif defined(TARGET_MACH) && defined(TARGET_X86) && !defined(__native_client_codegen__)
79 #define SHARED_EXT ".dylib"
80 #elif defined(TARGET_MACH) && defined(TARGET_AMD64) && !defined(__native_client_codegen__)
81 #define SHARED_EXT ".dylib"
83 #define SHARED_EXT ".so"
86 #define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
87 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
88 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
90 /* predefined values for static readonly fields without needed to run the .cctor */
91 typedef struct _ReadOnlyValue ReadOnlyValue;
92 struct _ReadOnlyValue {
95 int type; /* to be used later for typechecking to prevent user errors */
104 static ReadOnlyValue *readonly_values;
106 typedef struct MonoAotOptions {
109 gboolean write_symbols;
110 gboolean metadata_only;
111 gboolean bind_to_runtime_version;
114 gboolean static_link;
118 gboolean dwarf_debug;
120 gboolean log_generics;
121 gboolean log_instances;
122 gboolean direct_pinvoke;
123 gboolean direct_icalls;
124 gboolean no_direct_calls;
125 gboolean use_trampolines_page;
126 gboolean no_instances;
131 int nrgctx_trampolines;
132 int nimt_trampolines;
133 int ngsharedvt_arg_trampolines;
134 int nrgctx_fetch_trampolines;
135 gboolean print_skipped_methods;
141 char *instances_logfile_path;
145 typedef struct MonoAotStats {
146 int ccount, mcount, lmfcount, abscount, gcount, ocount, genericcount;
147 int code_size, info_size, ex_info_size, unwind_info_size, got_size, class_info_size, got_info_size, plt_size;
148 int methods_without_got_slots, direct_calls, all_calls, llvm_count;
149 int got_slots, offsets_size;
150 int got_slot_types [MONO_PATCH_INFO_NONE];
151 int got_slot_info_sizes [MONO_PATCH_INFO_NONE];
152 int jit_time, gen_time, link_time;
155 typedef struct MonoAotCompile {
158 GHashTable *method_indexes;
159 GHashTable *method_depth;
162 GHashTable **patch_to_plt_entry;
163 GHashTable *plt_offset_to_entry;
164 GHashTable *patch_to_got_offset;
165 GHashTable **patch_to_got_offset_by_type;
166 GPtrArray *got_patches;
167 GHashTable *image_hash;
168 GHashTable *method_to_cfg;
169 GHashTable *token_info_hash;
170 GHashTable *method_to_pinvoke_import;
171 GPtrArray *extra_methods;
172 GPtrArray *image_table;
174 GPtrArray *method_order;
175 GHashTable *export_names;
176 /* Maps MonoClass* -> blob offset */
177 GHashTable *klass_blob_hash;
178 /* Maps MonoMethod* -> blob offset */
179 GHashTable *method_blob_hash;
180 guint32 *plt_got_info_offsets;
181 guint32 got_offset, plt_offset, plt_got_offset_base;
182 guint32 final_got_size;
183 /* Number of GOT entries reserved for trampolines */
184 guint32 num_trampoline_got_entries;
185 guint32 tramp_page_size;
187 guint32 num_trampolines [MONO_AOT_TRAMP_NUM];
188 guint32 trampoline_got_offset_base [MONO_AOT_TRAMP_NUM];
189 guint32 trampoline_size [MONO_AOT_TRAMP_NUM];
190 guint32 tramp_page_code_offsets [MONO_AOT_TRAMP_NUM];
192 MonoAotOptions aot_opts;
196 MonoMemPool *mempool;
199 char *static_linking_symbol;
201 gboolean use_bin_writer;
202 gboolean gas_line_numbers;
204 MonoDwarfWriter *dwarf;
209 GHashTable *unwind_info_offsets;
210 GPtrArray *unwind_ops;
211 guint32 unwind_info_offset;
212 char *got_symbol_base;
215 char *methods_symbol;
216 GHashTable *method_label_hash;
217 const char *temp_prefix;
218 const char *user_symbol_prefix;
219 const char *llvm_label_prefix;
220 const char *inst_directive;
221 guint32 label_generator;
223 MonoAotFileFlags flags;
224 MonoDynamicStream blob;
225 MonoClass **typespec_classes;
228 char *assembly_name_sym;
229 GHashTable *plt_entry_debug_sym_cache;
230 gboolean thumb_mixed, need_no_dead_strip, need_pt_gnu_stack;
231 GHashTable *ginst_hash;
232 GHashTable *dwarf_ln_filenames;
233 gboolean global_symbols;
234 gboolean direct_method_addresses;
235 int objc_selector_index, objc_selector_index_2;
236 GPtrArray *objc_selectors;
237 GHashTable *objc_selector_to_index;
239 FILE *instances_logfile;
244 char *symbol, *llvm_symbol, *debug_sym;
246 gboolean jit_used, llvm_used;
249 #define mono_acfg_lock(acfg) mono_mutex_lock (&((acfg)->mutex))
250 #define mono_acfg_unlock(acfg) mono_mutex_unlock (&((acfg)->mutex))
252 /* This points to the current acfg in LLVM mode */
253 static MonoAotCompile *llvm_acfg;
255 #ifdef HAVE_ARRAY_ELEM_INIT
256 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
257 #define MSGSTRFIELD1(line) str##line
258 static const struct msgstr_t {
259 #define PATCH_INFO(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
260 #include "patch-info.h"
263 #define PATCH_INFO(a,b) b,
264 #include "patch-info.h"
267 static const gint16 opidx [] = {
268 #define PATCH_INFO(a,b) [MONO_PATCH_INFO_ ## a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
269 #include "patch-info.h"
273 static G_GNUC_UNUSED const char*
274 get_patch_name (int info)
276 return (const char*)&opstr + opidx [info];
280 #define PATCH_INFO(a,b) b,
281 static const char* const
282 patch_types [MONO_PATCH_INFO_NUM + 1] = {
283 #include "patch-info.h"
287 static G_GNUC_UNUSED const char*
288 get_patch_name (int info)
290 return patch_types [info];
296 get_plt_entry_debug_sym (MonoAotCompile *acfg, MonoJumpInfo *ji, GHashTable *cache);
299 aot_printf (MonoAotCompile *acfg, const gchar *format, ...)
305 output = acfg->logfile;
309 va_start (args, format);
310 vfprintf (output, format, args);
315 aot_printerrf (MonoAotCompile *acfg, const gchar *format, ...)
321 output = acfg->logfile;
325 va_start (args, format);
326 vfprintf (output, format, args);
330 /* Wrappers around the image writer functions */
333 emit_section_change (MonoAotCompile *acfg, const char *section_name, int subsection_index)
335 img_writer_emit_section_change (acfg->w, section_name, subsection_index);
339 emit_push_section (MonoAotCompile *acfg, const char *section_name, int subsection)
341 img_writer_emit_push_section (acfg->w, section_name, subsection);
345 emit_pop_section (MonoAotCompile *acfg)
347 img_writer_emit_pop_section (acfg->w);
351 emit_local_symbol (MonoAotCompile *acfg, const char *name, const char *end_label, gboolean func)
353 img_writer_emit_local_symbol (acfg->w, name, end_label, func);
357 emit_label (MonoAotCompile *acfg, const char *name)
359 img_writer_emit_label (acfg->w, name);
363 emit_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
365 img_writer_emit_bytes (acfg->w, buf, size);
369 emit_string (MonoAotCompile *acfg, const char *value)
371 img_writer_emit_string (acfg->w, value);
375 emit_line (MonoAotCompile *acfg)
377 img_writer_emit_line (acfg->w);
381 emit_alignment (MonoAotCompile *acfg, int size)
383 img_writer_emit_alignment (acfg->w, size);
387 emit_pointer_unaligned (MonoAotCompile *acfg, const char *target)
389 img_writer_emit_pointer_unaligned (acfg->w, target);
393 emit_pointer (MonoAotCompile *acfg, const char *target)
395 img_writer_emit_pointer (acfg->w, target);
399 emit_pointer_2 (MonoAotCompile *acfg, const char *prefix, const char *target)
401 if (prefix [0] != '\0') {
402 char *s = g_strdup_printf ("%s%s", prefix, target);
403 img_writer_emit_pointer (acfg->w, s);
406 img_writer_emit_pointer (acfg->w, target);
411 emit_int16 (MonoAotCompile *acfg, int value)
413 img_writer_emit_int16 (acfg->w, value);
417 emit_int32 (MonoAotCompile *acfg, int value)
419 img_writer_emit_int32 (acfg->w, value);
423 emit_symbol_diff (MonoAotCompile *acfg, const char *end, const char* start, int offset)
425 img_writer_emit_symbol_diff (acfg->w, end, start, offset);
429 emit_zero_bytes (MonoAotCompile *acfg, int num)
431 img_writer_emit_zero_bytes (acfg->w, num);
435 emit_byte (MonoAotCompile *acfg, guint8 val)
437 img_writer_emit_byte (acfg->w, val);
440 #ifdef __native_client_codegen__
442 emit_nacl_call_alignment (MonoAotCompile *acfg)
444 img_writer_emit_nacl_call_alignment (acfg->w);
448 static G_GNUC_UNUSED void
449 emit_global_inner (MonoAotCompile *acfg, const char *name, gboolean func)
451 img_writer_emit_global (acfg->w, name, func);
455 emit_global (MonoAotCompile *acfg, const char *name, gboolean func)
457 if (acfg->aot_opts.no_dlsym) {
458 g_ptr_array_add (acfg->globals, g_strdup (name));
459 img_writer_emit_local_symbol (acfg->w, name, NULL, func);
461 img_writer_emit_global (acfg->w, name, func);
466 emit_symbol_size (MonoAotCompile *acfg, const char *name, const char *end_label)
468 img_writer_emit_symbol_size (acfg->w, name, end_label);
472 emit_string_symbol (MonoAotCompile *acfg, const char *name, const char *value)
474 img_writer_emit_section_change (acfg->w, RODATA_SECT, 1);
476 /* On apple, all symbols need to be aligned to avoid warnings from ld */
477 emit_alignment (acfg, 4);
479 img_writer_emit_label (acfg->w, name);
480 img_writer_emit_string (acfg->w, value);
483 static G_GNUC_UNUSED void
484 emit_uleb128 (MonoAotCompile *acfg, guint32 value)
487 guint8 b = value & 0x7f;
489 if (value != 0) /* more bytes to come */
495 static G_GNUC_UNUSED void
496 emit_sleb128 (MonoAotCompile *acfg, gint64 value)
499 gboolean negative = (value < 0);
506 /* the following is unnecessary if the
507 * implementation of >>= uses an arithmetic rather
508 * than logical shift for a signed left operand
512 value |= - ((gint64)1 <<(size - 7));
513 /* sign bit of byte is second high order bit (0x40) */
514 if ((value == 0 && !(byte & 0x40)) ||
515 (value == -1 && (byte & 0x40)))
519 emit_byte (acfg, byte);
523 static G_GNUC_UNUSED void
524 encode_uleb128 (guint32 value, guint8 *buf, guint8 **endbuf)
529 guint8 b = value & 0x7f;
531 if (value != 0) /* more bytes to come */
539 static G_GNUC_UNUSED void
540 encode_sleb128 (gint32 value, guint8 *buf, guint8 **endbuf)
543 gboolean negative = (value < 0);
551 /* the following is unnecessary if the
552 * implementation of >>= uses an arithmetic rather
553 * than logical shift for a signed left operand
557 value |= - (1 <<(size - 7));
558 /* sign bit of byte is second high order bit (0x40) */
559 if ((value == 0 && !(byte & 0x40)) ||
560 (value == -1 && (byte & 0x40)))
571 emit_unset_mode (MonoAotCompile *acfg)
573 img_writer_emit_unset_mode (acfg->w);
576 static G_GNUC_UNUSED void
577 emit_set_thumb_mode (MonoAotCompile *acfg)
579 emit_unset_mode (acfg);
580 fprintf (acfg->fp, ".code 16\n");
583 static G_GNUC_UNUSED void
584 emit_set_arm_mode (MonoAotCompile *acfg)
586 emit_unset_mode (acfg);
587 fprintf (acfg->fp, ".code 32\n");
591 emit_code_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
596 g_assert (size % 4 == 0);
597 emit_unset_mode (acfg);
598 for (i = 0; i < size; i += 4)
599 fprintf (acfg->fp, "%s 0x%x\n", acfg->inst_directive, *(guint32*)(buf + i));
601 emit_bytes (acfg, buf, size);
605 /* ARCHITECTURE SPECIFIC CODE */
607 #if defined(TARGET_X86) || defined(TARGET_AMD64) || defined(TARGET_ARM) || defined(TARGET_POWERPC)
608 #define EMIT_DWARF_INFO 1
611 #if defined(TARGET_ARM)
612 #define AOT_FUNC_ALIGNMENT 4
614 #define AOT_FUNC_ALIGNMENT 16
616 #if (defined(TARGET_X86) || defined(TARGET_AMD64)) && defined(__native_client_codegen__)
617 #undef AOT_FUNC_ALIGNMENT
618 #define AOT_FUNC_ALIGNMENT 32
621 #if defined(TARGET_POWERPC64) && !defined(__mono_ilp32__)
622 #define PPC_LD_OP "ld"
623 #define PPC_LDX_OP "ldx"
625 #define PPC_LD_OP "lwz"
626 #define PPC_LDX_OP "lwzx"
630 #define AOT_TARGET_STR "AMD64"
635 #define AOT_TARGET_STR "ARM (MACH)"
637 #define AOT_TARGET_STR "ARM (!MACH)"
643 #define AOT_TARGET_STR "ARM64 (MACH)"
645 #define AOT_TARGET_STR "ARM64 (!MACH)"
649 #ifdef TARGET_POWERPC64
650 #ifdef __mono_ilp32__
651 #define AOT_TARGET_STR "POWERPC64 (mono ilp32)"
653 #define AOT_TARGET_STR "POWERPC64 (!mono ilp32)"
656 #ifdef TARGET_POWERPC
657 #ifdef __mono_ilp32__
658 #define AOT_TARGET_STR "POWERPC (mono ilp32)"
660 #define AOT_TARGET_STR "POWERPC (!mono ilp32)"
667 #define AOT_TARGET_STR "X86 (WIN32)"
668 #elif defined(__native_client_codegen__)
669 #define AOT_TARGET_STR "X86 (native client codegen)"
671 #define AOT_TARGET_STR "X86 (!native client codegen)"
675 #ifndef AOT_TARGET_STR
676 #define AOT_TARGET_STR ""
680 arch_init (MonoAotCompile *acfg)
682 acfg->llc_args = g_string_new ("");
683 acfg->as_args = g_string_new ("");
686 * The prefix LLVM likes to put in front of symbol names on darwin.
687 * The mach-os specs require this for globals, but LLVM puts them in front of all
688 * symbols. We need to handle this, since we need to refer to LLVM generated
691 acfg->llvm_label_prefix = "";
692 acfg->user_symbol_prefix = "";
694 #if defined(TARGET_X86)
695 g_string_append (acfg->llc_args, " -march=x86 -mattr=sse4.1");
698 #if defined(TARGET_AMD64)
699 g_string_append (acfg->llc_args, " -march=x86-64 -mattr=sse4.1");
703 if (acfg->aot_opts.mtriple && strstr (acfg->aot_opts.mtriple, "darwin")) {
704 g_string_append (acfg->llc_args, "-mattr=+v6");
707 g_string_append (acfg->llc_args, " -mattr=+vfp2,-neon,+d16");
708 g_string_append (acfg->as_args, " -mfpu=vfp3");
710 g_string_append (acfg->llc_args, " -soft-float");
713 if (acfg->aot_opts.mtriple && strstr (acfg->aot_opts.mtriple, "thumb"))
714 acfg->thumb_mixed = TRUE;
716 if (acfg->aot_opts.mtriple)
717 mono_arch_set_target (acfg->aot_opts.mtriple);
721 acfg->inst_directive = ".inst";
722 if (acfg->aot_opts.mtriple)
723 mono_arch_set_target (acfg->aot_opts.mtriple);
727 acfg->user_symbol_prefix = "_";
728 acfg->llvm_label_prefix = "_";
729 acfg->inst_directive = ".word";
730 acfg->need_no_dead_strip = TRUE;
731 acfg->aot_opts.gnu_asm = TRUE;
734 #if defined(__linux__) && !defined(TARGET_ARM)
735 acfg->need_pt_gnu_stack = TRUE;
739 acfg->direct_method_addresses = TRUE;
740 acfg->global_symbols = TRUE;
746 #include "../../../mono-extensions/mono/mini/aot-compiler-arm64.c"
750 #ifdef MONO_ARCH_AOT_SUPPORTED
752 * arch_emit_direct_call:
754 * Emit a direct call to the symbol TARGET. CALL_SIZE is set to the size of the
758 arch_emit_direct_call (MonoAotCompile *acfg, const char *target, gboolean external, gboolean thumb, MonoJumpInfo *ji, int *call_size)
760 #if defined(TARGET_X86) || defined(TARGET_AMD64)
761 /* Need to make sure this is exactly 5 bytes long */
762 if (external && !acfg->use_bin_writer) {
763 emit_unset_mode (acfg);
764 fprintf (acfg->fp, "call %s\n", target);
766 emit_byte (acfg, '\xe8');
767 emit_symbol_diff (acfg, target, ".", -4);
770 #elif defined(TARGET_ARM)
771 if (acfg->use_bin_writer) {
778 img_writer_emit_reloc (acfg->w, R_ARM_CALL, target, -8);
779 emit_bytes (acfg, buf, 4);
781 emit_unset_mode (acfg);
783 fprintf (acfg->fp, "blx %s\n", target);
785 fprintf (acfg->fp, "bl %s\n", target);
788 #elif defined(TARGET_ARM64)
789 arm64_emit_direct_call (acfg, target, external, thumb, ji, call_size);
790 #elif defined(TARGET_POWERPC)
791 if (acfg->use_bin_writer) {
792 g_assert_not_reached ();
794 emit_unset_mode (acfg);
795 fprintf (acfg->fp, "bl %s\n", target);
799 g_assert_not_reached ();
806 * - we use an approach similar to the x86 abi: reserve a register (r30) to hold
808 * - The full-aot trampolines need access to the GOT of mscorlib, so we store
809 * in in the 2. slot of every GOT, and require every method to place the GOT
810 * address in r30, even when it doesn't access the GOT otherwise. This way,
811 * the trampolines can compute the mscorlib GOT address by loading 4(r30).
816 * PPC64 uses function descriptors which greatly complicate all code, since
817 * these are used very inconsistently in the runtime. Some functions like
818 * mono_compile_method () return ftn descriptors, while others like the
819 * trampoline creation functions do not.
820 * We assume that all GOT slots contain function descriptors, and create
821 * descriptors in aot-runtime.c when needed.
822 * The ppc64 abi uses r2 to hold the address of the TOC/GOT, which is loaded
823 * from function descriptors, we could do the same, but it would require
824 * rewriting all the ppc/aot code to handle function descriptors properly.
825 * So instead, we use the same approach as on PPC32.
826 * This is a horrible mess, but fixing it would probably lead to an even bigger
832 * - similar to the PPC32 design, we reserve EBX to hold the GOT pointer.
835 #ifdef MONO_ARCH_AOT_SUPPORTED
837 * arch_emit_got_offset:
839 * The memory pointed to by CODE should hold native code for computing the GOT
840 * address. Emit this code while patching it with the offset between code and
841 * the GOT. CODE_SIZE is set to the number of bytes emitted.
844 arch_emit_got_offset (MonoAotCompile *acfg, guint8 *code, int *code_size)
846 #if defined(TARGET_POWERPC64)
847 g_assert (!acfg->use_bin_writer);
848 emit_unset_mode (acfg);
850 * The ppc32 code doesn't seem to work on ppc64, the assembler complains about
851 * unsupported relocations. So we store the got address into the .Lgot_addr
852 * symbol which is in the text segment, compute its address, and load it.
854 fprintf (acfg->fp, ".L%d:\n", acfg->label_generator);
855 fprintf (acfg->fp, "lis 0, (.Lgot_addr + 4 - .L%d)@h\n", acfg->label_generator);
856 fprintf (acfg->fp, "ori 0, 0, (.Lgot_addr + 4 - .L%d)@l\n", acfg->label_generator);
857 fprintf (acfg->fp, "add 30, 30, 0\n");
858 fprintf (acfg->fp, "%s 30, 0(30)\n", PPC_LD_OP);
859 acfg->label_generator ++;
861 #elif defined(TARGET_POWERPC)
862 g_assert (!acfg->use_bin_writer);
863 emit_unset_mode (acfg);
864 fprintf (acfg->fp, ".L%d:\n", acfg->label_generator);
865 fprintf (acfg->fp, "lis 0, (%s + 4 - .L%d)@h\n", acfg->got_symbol, acfg->label_generator);
866 fprintf (acfg->fp, "ori 0, 0, (%s + 4 - .L%d)@l\n", acfg->got_symbol, acfg->label_generator);
867 acfg->label_generator ++;
870 guint32 offset = mono_arch_get_patch_offset (code);
871 emit_bytes (acfg, code, offset);
872 emit_symbol_diff (acfg, acfg->got_symbol, ".", offset);
874 *code_size = offset + 4;
879 * arch_emit_got_access:
881 * The memory pointed to by CODE should hold native code for loading a GOT
882 * slot. Emit this code while patching it so it accesses the GOT slot GOT_SLOT.
883 * CODE_SIZE is set to the number of bytes emitted.
886 arch_emit_got_access (MonoAotCompile *acfg, guint8 *code, int got_slot, int *code_size)
888 /* Emit beginning of instruction */
889 emit_bytes (acfg, code, mono_arch_get_patch_offset (code));
891 /* Emit the offset */
893 emit_symbol_diff (acfg, acfg->got_symbol, ".", (unsigned int) ((got_slot * sizeof (gpointer)) - 4));
894 *code_size = mono_arch_get_patch_offset (code) + 4;
895 #elif defined(TARGET_X86)
896 emit_int32 (acfg, (unsigned int) ((got_slot * sizeof (gpointer))));
897 *code_size = mono_arch_get_patch_offset (code) + 4;
898 #elif defined(TARGET_ARM)
899 emit_symbol_diff (acfg, acfg->got_symbol, ".", (unsigned int) ((got_slot * sizeof (gpointer))) - 12);
900 *code_size = mono_arch_get_patch_offset (code) + 4;
901 #elif defined(TARGET_ARM64)
902 arm64_emit_got_access (acfg, code, got_slot, code_size);
903 #elif defined(TARGET_POWERPC)
909 ppc_load32 (code, ppc_r0, got_slot * sizeof (gpointer));
910 g_assert (code - buf == 8);
911 emit_bytes (acfg, buf, code - buf);
912 *code_size = code - buf;
915 g_assert_not_reached ();
921 #ifdef MONO_ARCH_AOT_SUPPORTED
923 * arch_emit_objc_selector_ref:
925 * Emit the implementation of OP_OBJC_GET_SELECTOR, which itself implements @selector(foo:) in objective-c.
928 arch_emit_objc_selector_ref (MonoAotCompile *acfg, guint8 *code, int index, int *code_size)
930 #if defined(TARGET_ARM)
933 int lindex = acfg->objc_selector_index_2 ++;
936 emit_bytes (acfg, code, 8);
938 sprintf (symbol1, "L_OBJC_SELECTOR_%d", lindex);
939 sprintf (symbol2, "L_OBJC_SELECTOR_REFERENCES_%d", index);
941 emit_label (acfg, symbol1);
942 img_writer_emit_unset_mode (acfg->w);
943 fprintf (acfg->fp, ".long %s-(%s+12)", symbol2, symbol1);
946 #elif defined(TARGET_ARM64)
947 arm64_emit_objc_selector_ref (acfg, code, index, code_size);
949 g_assert_not_reached ();
955 * arch_emit_plt_entry:
957 * Emit code for the PLT entry with index INDEX.
960 arch_emit_plt_entry (MonoAotCompile *acfg, int index)
962 #if defined(TARGET_X86)
963 guint32 offset = (acfg->plt_got_offset_base + index) * sizeof (gpointer);
964 #if defined(__default_codegen__)
965 /* jmp *<offset>(%ebx) */
966 emit_byte (acfg, 0xff);
967 emit_byte (acfg, 0xa3);
968 emit_int32 (acfg, offset);
969 /* Used by mono_aot_get_plt_info_offset */
970 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
971 #elif defined(__native_client_codegen__)
972 const guint8 kSizeOfNaClJmp = 11;
973 guint8 bytes[kSizeOfNaClJmp];
974 guint8 *pbytes = &bytes[0];
976 x86_jump_membase32 (pbytes, X86_EBX, offset);
977 emit_bytes (acfg, bytes, kSizeOfNaClJmp);
978 /* four bytes of data, used by mono_arch_patch_plt_entry */
979 /* For Native Client, make this work with data embedded in push. */
980 emit_byte (acfg, 0x68); /* hide data in a push */
981 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
982 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
983 #endif /*__native_client_codegen__*/
984 #elif defined(TARGET_AMD64)
985 #if defined(__default_codegen__)
987 * We can't emit jumps because they are 32 bits only so they can't be patched.
988 * So we make indirect calls through GOT entries which are patched by the AOT
989 * loader to point to .Lpd entries.
991 /* jmpq *<offset>(%rip) */
992 emit_byte (acfg, '\xff');
993 emit_byte (acfg, '\x25');
994 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) -4);
995 /* Used by mono_aot_get_plt_info_offset */
996 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
997 acfg->stats.plt_size += 10;
998 #elif defined(__native_client_codegen__)
1000 guint8 *buf_aligned = ALIGN_TO(buf, kNaClAlignment);
1001 guint8 *code = buf_aligned;
1003 /* mov <OFFSET>(%rip), %r11d */
1004 emit_byte (acfg, '\x45');
1005 emit_byte (acfg, '\x8b');
1006 emit_byte (acfg, '\x1d');
1007 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) -4);
1009 amd64_jump_reg (code, AMD64_R11);
1010 /* This should be constant for the plt patch */
1011 g_assert ((size_t)(code-buf_aligned) == 10);
1012 emit_bytes (acfg, buf_aligned, code - buf_aligned);
1014 /* Hide data in a push imm32 so it passes validation */
1015 emit_byte (acfg, 0x68); /* push */
1016 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
1017 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
1018 #endif /*__native_client_codegen__*/
1019 #elif defined(TARGET_ARM)
1024 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 0);
1025 ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_IP);
1026 emit_bytes (acfg, buf, code - buf);
1027 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) - 4);
1028 /* Used by mono_aot_get_plt_info_offset */
1029 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
1030 #elif defined(TARGET_ARM64)
1031 arm64_emit_plt_entry (acfg, index);
1032 #elif defined(TARGET_POWERPC)
1033 guint32 offset = (acfg->plt_got_offset_base + index) * sizeof (gpointer);
1035 /* The GOT address is guaranteed to be in r30 by OP_LOAD_GOTADDR */
1036 g_assert (!acfg->use_bin_writer);
1037 emit_unset_mode (acfg);
1038 fprintf (acfg->fp, "lis 11, %d@h\n", offset);
1039 fprintf (acfg->fp, "ori 11, 11, %d@l\n", offset);
1040 fprintf (acfg->fp, "add 11, 11, 30\n");
1041 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
1042 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
1043 fprintf (acfg->fp, "%s 2, %d(11)\n", PPC_LD_OP, (int)sizeof (gpointer));
1044 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
1046 fprintf (acfg->fp, "mtctr 11\n");
1047 fprintf (acfg->fp, "bctr\n");
1048 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
1050 g_assert_not_reached ();
1055 arch_emit_llvm_plt_entry (MonoAotCompile *acfg, int index)
1057 #if defined(TARGET_ARM)
1059 /* LLVM calls the PLT entries using bl, so emit a stub */
1060 /* FIXME: Too much overhead on every call */
1061 fprintf (acfg->fp, ".thumb_func\n");
1062 fprintf (acfg->fp, "bx pc\n");
1063 fprintf (acfg->fp, "nop\n");
1064 fprintf (acfg->fp, ".arm\n");
1066 /* LLVM calls the PLT entries using bl, so these have to be thumb2 */
1067 /* The caller already transitioned to thumb */
1068 /* The code below should be 12 bytes long */
1069 /* clang has trouble encoding these instructions, so emit the binary */
1071 fprintf (acfg->fp, "ldr ip, [pc, #8]\n");
1072 /* thumb can't encode ld pc, [pc, ip] */
1073 fprintf (acfg->fp, "add ip, pc, ip\n");
1074 fprintf (acfg->fp, "ldr ip, [ip, #0]\n");
1075 fprintf (acfg->fp, "bx ip\n");
1077 emit_set_thumb_mode (acfg);
1078 fprintf (acfg->fp, ".4byte 0xc008f8df\n");
1079 fprintf (acfg->fp, ".2byte 0x44fc\n");
1080 fprintf (acfg->fp, ".4byte 0xc000f8dc\n");
1081 fprintf (acfg->fp, ".2byte 0x4760\n");
1082 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) + 4);
1083 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
1084 emit_unset_mode (acfg);
1085 emit_set_arm_mode (acfg);
1087 g_assert_not_reached ();
1092 * arch_emit_specific_trampoline_pages:
1094 * Emits a page full of trampolines: each trampoline uses its own address to
1095 * lookup both the generic trampoline code and the data argument.
1096 * This page can be remapped in process multiple times so we can get an
1097 * unlimited number of trampolines.
1098 * Specifically this implementation uses the following trick: two memory pages
1099 * are allocated, with the first containing the data and the second containing the trampolines.
1100 * To reduce trampoline size, each trampoline jumps at the start of the page where a common
1101 * implementation does all the lifting.
1102 * Note that the ARM single trampoline size is 8 bytes, exactly like the data that needs to be stored
1103 * on the arm 32 bit system.
1106 arch_emit_specific_trampoline_pages (MonoAotCompile *acfg)
1108 #if defined(TARGET_ARM)
1111 guint8 *loop_start, *loop_branch_back, *loop_end_check, *imt_found_check;
1113 #define COMMON_TRAMP_SIZE 16
1114 int count = (mono_pagesize () - COMMON_TRAMP_SIZE) / 8;
1115 int imm8, rot_amount;
1118 if (!acfg->aot_opts.use_trampolines_page)
1121 acfg->tramp_page_size = mono_pagesize ();
1123 sprintf (symbol, "%sspecific_trampolines_page", acfg->user_symbol_prefix);
1124 emit_alignment (acfg, mono_pagesize ());
1125 emit_global (acfg, symbol, TRUE);
1126 emit_label (acfg, symbol);
1128 /* emit the generic code first, the trampoline address + 8 is in the lr register */
1130 imm8 = mono_arm_is_rotated_imm8 (mono_pagesize (), &rot_amount);
1131 ARM_SUB_REG_IMM (code, ARMREG_LR, ARMREG_LR, imm8, rot_amount);
1132 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_LR, -8);
1133 ARM_LDR_IMM (code, ARMREG_PC, ARMREG_LR, -4);
1135 g_assert (code - buf == COMMON_TRAMP_SIZE);
1138 emit_bytes (acfg, buf, code - buf);
1140 for (i = 0; i < count; ++i) {
1142 ARM_PUSH (code, 0x5fff);
1144 arm_patch (code - 4, code - COMMON_TRAMP_SIZE - 8 * (i + 1));
1145 g_assert (code - buf == 8);
1146 emit_bytes (acfg, buf, code - buf);
1149 /* now the rgctx trampolines: each specific trampolines puts in the ip register
1150 * the instruction pointer address, so the generic trampoline at the start of the page
1151 * subtracts 4096 to get to the data page and loads the values
1152 * We again fit the generic trampiline in 16 bytes.
1154 sprintf (symbol, "%srgctx_trampolines_page", acfg->user_symbol_prefix);
1155 emit_global (acfg, symbol, TRUE);
1156 emit_label (acfg, symbol);
1158 imm8 = mono_arm_is_rotated_imm8 (mono_pagesize (), &rot_amount);
1159 ARM_SUB_REG_IMM (code, ARMREG_IP, ARMREG_IP, imm8, rot_amount);
1160 ARM_LDR_IMM (code, MONO_ARCH_RGCTX_REG, ARMREG_IP, -8);
1161 ARM_LDR_IMM (code, ARMREG_PC, ARMREG_IP, -4);
1163 g_assert (code - buf == COMMON_TRAMP_SIZE);
1166 emit_bytes (acfg, buf, code - buf);
1168 for (i = 0; i < count; ++i) {
1170 ARM_MOV_REG_REG (code, ARMREG_IP, ARMREG_PC);
1172 arm_patch (code - 4, code - COMMON_TRAMP_SIZE - 8 * (i + 1));
1173 g_assert (code - buf == 8);
1174 emit_bytes (acfg, buf, code - buf);
1178 * gsharedvt arg trampolines: see arch_emit_gsharedvt_arg_trampoline ()
1180 sprintf (symbol, "%sgsharedvt_arg_trampolines_page", acfg->user_symbol_prefix);
1181 emit_global (acfg, symbol, TRUE);
1182 emit_label (acfg, symbol);
1184 ARM_PUSH (code, (1 << ARMREG_R0) | (1 << ARMREG_R1) | (1 << ARMREG_R2) | (1 << ARMREG_R3));
1185 imm8 = mono_arm_is_rotated_imm8 (mono_pagesize (), &rot_amount);
1186 ARM_SUB_REG_IMM (code, ARMREG_IP, ARMREG_IP, imm8, rot_amount);
1187 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_IP, -8);
1188 ARM_LDR_IMM (code, ARMREG_PC, ARMREG_IP, -4);
1189 g_assert (code - buf == COMMON_TRAMP_SIZE);
1191 emit_bytes (acfg, buf, code - buf);
1193 for (i = 0; i < count; ++i) {
1195 ARM_MOV_REG_REG (code, ARMREG_IP, ARMREG_PC);
1197 arm_patch (code - 4, code - COMMON_TRAMP_SIZE - 8 * (i + 1));
1198 g_assert (code - buf == 8);
1199 emit_bytes (acfg, buf, code - buf);
1202 /* now the imt trampolines: each specific trampolines puts in the ip register
1203 * the instruction pointer address, so the generic trampoline at the start of the page
1204 * subtracts 4096 to get to the data page and loads the values
1205 * We again fit the generic trampiline in 16 bytes.
1207 #define IMT_TRAMP_SIZE 72
1208 sprintf (symbol, "%simt_trampolines_page", acfg->user_symbol_prefix);
1209 emit_global (acfg, symbol, TRUE);
1210 emit_label (acfg, symbol);
1212 /* Need at least two free registers, plus a slot for storing the pc */
1213 ARM_PUSH (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_R2));
1215 imm8 = mono_arm_is_rotated_imm8 (mono_pagesize (), &rot_amount);
1216 ARM_SUB_REG_IMM (code, ARMREG_IP, ARMREG_IP, imm8, rot_amount);
1217 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_IP, -8);
1219 /* The IMT method is in v5, r0 has the imt array address */
1222 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_R0, 0);
1223 ARM_CMP_REG_REG (code, ARMREG_R1, ARMREG_V5);
1224 imt_found_check = code;
1225 ARM_B_COND (code, ARMCOND_EQ, 0);
1227 /* End-of-loop check */
1228 ARM_CMP_REG_IMM (code, ARMREG_R1, 0, 0);
1229 loop_end_check = code;
1230 ARM_B_COND (code, ARMCOND_EQ, 0);
1233 ARM_ADD_REG_IMM8 (code, ARMREG_R0, ARMREG_R0, sizeof (gpointer) * 2);
1234 loop_branch_back = code;
1236 arm_patch (loop_branch_back, loop_start);
1239 arm_patch (imt_found_check, code);
1240 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4);
1241 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 0);
1242 /* Save it to the third stack slot */
1243 ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8);
1244 /* Restore the registers and branch */
1245 ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC));
1248 arm_patch (loop_end_check, code);
1249 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4);
1250 ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8);
1251 ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC));
1255 g_assert (code - buf == IMT_TRAMP_SIZE);
1256 emit_bytes (acfg, buf, code - buf);
1258 for (i = 0; i < count; ++i) {
1260 ARM_MOV_REG_REG (code, ARMREG_IP, ARMREG_PC);
1262 arm_patch (code - 4, code - IMT_TRAMP_SIZE - 8 * (i + 1));
1263 g_assert (code - buf == 8);
1264 emit_bytes (acfg, buf, code - buf);
1267 acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_SPECIFIC] = 16;
1268 acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_STATIC_RGCTX] = 16;
1269 acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_IMT_THUNK] = 72;
1270 acfg->tramp_page_code_offsets [MONO_AOT_TRAMP_GSHAREDVT_ARG] = 16;
1271 #elif defined(TARGET_ARM64)
1272 arm64_emit_specific_trampoline_pages (acfg);
1277 * arch_emit_specific_trampoline:
1279 * Emit code for a specific trampoline. OFFSET is the offset of the first of
1280 * two GOT slots which contain the generic trampoline address and the trampoline
1281 * argument. TRAMP_SIZE is set to the size of the emitted trampoline.
1284 arch_emit_specific_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
1287 * The trampolines created here are variations of the specific
1288 * trampolines created in mono_arch_create_specific_trampoline (). The
1290 * - the generic trampoline address is taken from a got slot.
1291 * - the offset of the got slot where the trampoline argument is stored
1292 * is embedded in the instruction stream, and the generic trampoline
1293 * can load the argument by loading the offset, adding it to the
1294 * address of the trampoline to get the address of the got slot, and
1295 * loading the argument from there.
1296 * - all the trampolines should be of the same length.
1298 #if defined(TARGET_AMD64)
1299 #if defined(__default_codegen__)
1300 /* This should be exactly 16 bytes long */
1302 /* call *<offset>(%rip) */
1303 emit_byte (acfg, '\x41');
1304 emit_byte (acfg, '\xff');
1305 emit_byte (acfg, '\x15');
1306 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
1307 /* This should be relative to the start of the trampoline */
1308 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset+1) * sizeof (gpointer)) + 7);
1309 emit_zero_bytes (acfg, 5);
1310 #elif defined(__native_client_codegen__)
1312 guint8 *buf_aligned = ALIGN_TO(buf, kNaClAlignment);
1313 guint8 *code = buf_aligned;
1318 /* Emit this call in 'code' so we can find out how long it is. */
1319 amd64_call_reg (code, AMD64_R11);
1320 call_start = mono_arch_nacl_skip_nops (buf_aligned);
1321 call_len = code - call_start;
1323 /* The tramp_size is twice the NaCl alignment because it starts with */
1324 /* a call which needs to be aligned to the end of the boundary. */
1325 *tramp_size = kNaClAlignment*2;
1327 /* Emit nops to align call site below which is 7 bytes plus */
1328 /* the length of the call sequence emitted above. */
1329 /* Note: this requires the specific trampoline starts on a */
1330 /* kNaclAlignedment aligned address, which it does because */
1331 /* it's its own function that is aligned. */
1332 guint8 nop_buf[256];
1333 guint8 *nopbuf_aligned = ALIGN_TO (nop_buf, kNaClAlignment);
1334 guint8 *nopbuf_end = mono_arch_nacl_pad (nopbuf_aligned, kNaClAlignment - 7 - (call_len));
1335 emit_bytes (acfg, nopbuf_aligned, nopbuf_end - nopbuf_aligned);
1337 /* The trampoline is stored at the offset'th pointer, the -4 is */
1338 /* present because RIP relative addressing starts at the end of */
1339 /* the current instruction, while the label "." is relative to */
1340 /* the beginning of the current asm location, which in this case */
1341 /* is not the mov instruction, but the offset itself, due to the */
1342 /* way the bytes and ints are emitted here. */
1343 got_offset = (offset * sizeof(gpointer)) - 4;
1345 /* mov <OFFSET>(%rip), %r11d */
1346 emit_byte (acfg, '\x45');
1347 emit_byte (acfg, '\x8b');
1348 emit_byte (acfg, '\x1d');
1349 emit_symbol_diff (acfg, acfg->got_symbol, ".", got_offset);
1352 emit_bytes (acfg, call_start, call_len);
1354 /* The arg is stored at the offset+1 pointer, relative to beginning */
1355 /* of trampoline: 7 for mov, plus the call length, and 1 for push. */
1356 got_offset = ((offset + 1) * sizeof(gpointer)) + 7 + call_len + 1;
1358 /* We can't emit this data directly, hide in a "push imm32" */
1359 emit_byte (acfg, '\x68'); /* push */
1360 emit_symbol_diff (acfg, acfg->got_symbol, ".", got_offset);
1361 emit_alignment (acfg, kNaClAlignment);
1362 #endif /*__native_client_codegen__*/
1363 #elif defined(TARGET_ARM)
1367 /* This should be exactly 20 bytes long */
1370 ARM_PUSH (code, 0x5fff);
1371 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 4);
1372 /* Load the value from the GOT */
1373 ARM_LDR_REG_REG (code, ARMREG_R1, ARMREG_PC, ARMREG_R1);
1375 ARM_BLX_REG (code, ARMREG_R1);
1377 g_assert (code - buf == 16);
1380 emit_bytes (acfg, buf, code - buf);
1382 * Only one offset is needed, since the second one would be equal to the
1385 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 4);
1386 //emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4 + 8);
1387 #elif defined(TARGET_ARM64)
1388 arm64_emit_specific_trampoline (acfg, offset, tramp_size);
1389 #elif defined(TARGET_POWERPC)
1396 g_assert (!acfg->use_bin_writer);
1399 * PPC has no ip relative addressing, so we need to compute the address
1400 * of the mscorlib got. That is slow and complex, so instead, we store it
1401 * in the second got slot of every aot image. The caller already computed
1402 * the address of its got and placed it into r30.
1404 emit_unset_mode (acfg);
1405 /* Load mscorlib got address */
1406 fprintf (acfg->fp, "%s 0, %d(30)\n", PPC_LD_OP, (int)sizeof (gpointer));
1407 /* Load generic trampoline address */
1408 fprintf (acfg->fp, "lis 11, %d@h\n", (int)(offset * sizeof (gpointer)));
1409 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)(offset * sizeof (gpointer)));
1410 fprintf (acfg->fp, "%s 11, 11, 0\n", PPC_LDX_OP);
1411 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
1412 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
1414 fprintf (acfg->fp, "mtctr 11\n");
1415 /* Load trampoline argument */
1416 /* On ppc, we pass it normally to the generic trampoline */
1417 fprintf (acfg->fp, "lis 11, %d@h\n", (int)((offset + 1) * sizeof (gpointer)));
1418 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)((offset + 1) * sizeof (gpointer)));
1419 fprintf (acfg->fp, "%s 0, 11, 0\n", PPC_LDX_OP);
1420 /* Branch to generic trampoline */
1421 fprintf (acfg->fp, "bctr\n");
1423 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
1424 *tramp_size = 10 * 4;
1426 *tramp_size = 9 * 4;
1428 #elif defined(TARGET_X86)
1432 /* Similar to the PPC code above */
1434 /* FIXME: Could this clobber the register needed by get_vcall_slot () ? */
1436 /* We clobber ECX, since EAX is used as MONO_ARCH_MONITOR_OBJECT_REG */
1437 #ifdef MONO_ARCH_MONITOR_OBJECT_REG
1438 g_assert (MONO_ARCH_MONITOR_OBJECT_REG != X86_ECX);
1442 /* Load mscorlib got address */
1443 x86_mov_reg_membase (code, X86_ECX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4);
1444 /* Push trampoline argument */
1445 x86_push_membase (code, X86_ECX, (offset + 1) * sizeof (gpointer));
1446 /* Load generic trampoline address */
1447 x86_mov_reg_membase (code, X86_ECX, X86_ECX, offset * sizeof (gpointer), 4);
1448 /* Branch to generic trampoline */
1449 x86_jump_reg (code, X86_ECX);
1451 #ifdef __native_client_codegen__
1453 /* emit nops to next 32 byte alignment */
1454 int a = (~kNaClAlignmentMask) & ((code - buf) + kNaClAlignment - 1);
1455 while (code < (buf + a)) x86_nop(code);
1458 emit_bytes (acfg, buf, code - buf);
1460 *tramp_size = NACL_SIZE(17, kNaClAlignment);
1461 g_assert (code - buf == *tramp_size);
1463 g_assert_not_reached ();
1468 * arch_emit_unbox_trampoline:
1470 * Emit code for the unbox trampoline for METHOD used in the full-aot case.
1471 * CALL_TARGET is the symbol pointing to the native code of METHOD.
1474 arch_emit_unbox_trampoline (MonoAotCompile *acfg, MonoCompile *cfg, MonoMethod *method, const char *call_target)
1476 #if defined(TARGET_AMD64)
1481 this_reg = mono_arch_get_this_arg_reg (NULL);
1483 amd64_alu_reg_imm (code, X86_ADD, this_reg, sizeof (MonoObject));
1485 emit_bytes (acfg, buf, code - buf);
1487 emit_byte (acfg, '\xe9');
1488 emit_symbol_diff (acfg, call_target, ".", -4);
1489 #elif defined(TARGET_X86)
1496 x86_alu_membase_imm (code, X86_ADD, X86_ESP, this_pos, sizeof (MonoObject));
1498 emit_bytes (acfg, buf, code - buf);
1501 emit_byte (acfg, '\xe9');
1502 emit_symbol_diff (acfg, call_target, ".", -4);
1503 #elif defined(TARGET_ARM)
1507 if (acfg->thumb_mixed && cfg->compile_llvm) {
1508 fprintf (acfg->fp, "add r0, r0, #%d\n", (int)sizeof (MonoObject));
1509 fprintf (acfg->fp, "b %s\n", call_target);
1510 fprintf (acfg->fp, ".arm\n");
1511 fprintf (acfg->fp, ".align 2\n");
1517 ARM_ADD_REG_IMM8 (code, ARMREG_R0, ARMREG_R0, sizeof (MonoObject));
1519 emit_bytes (acfg, buf, code - buf);
1520 /* jump to method */
1521 if (acfg->use_bin_writer) {
1528 img_writer_emit_reloc (acfg->w, R_ARM_JUMP24, call_target, -8);
1529 emit_bytes (acfg, buf, 4);
1531 if (acfg->thumb_mixed && cfg->compile_llvm)
1532 fprintf (acfg->fp, "\n\tbx %s\n", call_target);
1534 fprintf (acfg->fp, "\n\tb %s\n", call_target);
1536 #elif defined(TARGET_ARM64)
1537 arm64_emit_unbox_trampoline (acfg, cfg, method, call_target);
1538 #elif defined(TARGET_POWERPC)
1541 g_assert (!acfg->use_bin_writer);
1543 fprintf (acfg->fp, "\n\taddi %d, %d, %d\n", this_pos, this_pos, (int)sizeof (MonoObject));
1544 fprintf (acfg->fp, "\n\tb %s\n", call_target);
1546 g_assert_not_reached ();
1551 * arch_emit_static_rgctx_trampoline:
1553 * Emit code for a static rgctx trampoline. OFFSET is the offset of the first of
1554 * two GOT slots which contain the rgctx argument, and the method to jump to.
1555 * TRAMP_SIZE is set to the size of the emitted trampoline.
1556 * These kinds of trampolines cannot be enumerated statically, since there could
1557 * be one trampoline per method instantiation, so we emit the same code for all
1558 * trampolines, and parameterize them using two GOT slots.
1561 arch_emit_static_rgctx_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
1563 #if defined(TARGET_AMD64)
1564 #if defined(__default_codegen__)
1565 /* This should be exactly 13 bytes long */
1568 /* mov <OFFSET>(%rip), %r10 */
1569 emit_byte (acfg, '\x4d');
1570 emit_byte (acfg, '\x8b');
1571 emit_byte (acfg, '\x15');
1572 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
1574 /* jmp *<offset>(%rip) */
1575 emit_byte (acfg, '\xff');
1576 emit_byte (acfg, '\x25');
1577 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4);
1578 #elif defined(__native_client_codegen__)
1580 guint8 *buf_aligned = ALIGN_TO(buf, kNaClAlignment);
1581 guint8 *code = buf_aligned;
1583 /* mov <OFFSET>(%rip), %r10d */
1584 emit_byte (acfg, '\x45');
1585 emit_byte (acfg, '\x8b');
1586 emit_byte (acfg, '\x15');
1587 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
1589 /* mov <OFFSET>(%rip), %r11d */
1590 emit_byte (acfg, '\x45');
1591 emit_byte (acfg, '\x8b');
1592 emit_byte (acfg, '\x1d');
1593 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4);
1596 amd64_jump_reg (code, AMD64_R11);
1597 emit_bytes (acfg, buf_aligned, code - buf_aligned);
1599 emit_alignment (acfg, kNaClAlignment);
1600 *tramp_size = kNaClAlignment;
1601 #endif /*__native_client_codegen__*/
1603 #elif defined(TARGET_ARM)
1607 /* This should be exactly 24 bytes long */
1610 /* Load rgctx value */
1611 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 8);
1612 ARM_LDR_REG_REG (code, MONO_ARCH_RGCTX_REG, ARMREG_PC, ARMREG_IP);
1613 /* Load branch addr + branch */
1614 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 4);
1615 ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_IP);
1617 g_assert (code - buf == 16);
1620 emit_bytes (acfg, buf, code - buf);
1621 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 8);
1622 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4 + 4);
1623 #elif defined(TARGET_ARM64)
1624 arm64_emit_static_rgctx_trampoline (acfg, offset, tramp_size);
1625 #elif defined(TARGET_POWERPC)
1632 g_assert (!acfg->use_bin_writer);
1635 * PPC has no ip relative addressing, so we need to compute the address
1636 * of the mscorlib got. That is slow and complex, so instead, we store it
1637 * in the second got slot of every aot image. The caller already computed
1638 * the address of its got and placed it into r30.
1640 emit_unset_mode (acfg);
1641 /* Load mscorlib got address */
1642 fprintf (acfg->fp, "%s 0, %d(30)\n", PPC_LD_OP, (int)sizeof (gpointer));
1644 fprintf (acfg->fp, "lis 11, %d@h\n", (int)(offset * sizeof (gpointer)));
1645 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)(offset * sizeof (gpointer)));
1646 fprintf (acfg->fp, "%s %d, 11, 0\n", PPC_LDX_OP, MONO_ARCH_RGCTX_REG);
1647 /* Load target address */
1648 fprintf (acfg->fp, "lis 11, %d@h\n", (int)((offset + 1) * sizeof (gpointer)));
1649 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)((offset + 1) * sizeof (gpointer)));
1650 fprintf (acfg->fp, "%s 11, 11, 0\n", PPC_LDX_OP);
1651 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
1652 fprintf (acfg->fp, "%s 2, %d(11)\n", PPC_LD_OP, (int)sizeof (gpointer));
1653 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
1655 fprintf (acfg->fp, "mtctr 11\n");
1656 /* Branch to the target address */
1657 fprintf (acfg->fp, "bctr\n");
1659 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
1660 *tramp_size = 11 * 4;
1662 *tramp_size = 9 * 4;
1665 #elif defined(TARGET_X86)
1669 /* Similar to the PPC code above */
1671 g_assert (MONO_ARCH_RGCTX_REG != X86_ECX);
1674 /* Load mscorlib got address */
1675 x86_mov_reg_membase (code, X86_ECX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4);
1677 x86_mov_reg_membase (code, MONO_ARCH_RGCTX_REG, X86_ECX, offset * sizeof (gpointer), 4);
1678 /* Branch to the target address */
1679 x86_jump_membase (code, X86_ECX, (offset + 1) * sizeof (gpointer));
1681 #ifdef __native_client_codegen__
1683 /* emit nops to next 32 byte alignment */
1684 int a = (~kNaClAlignmentMask) & ((code - buf) + kNaClAlignment - 1);
1685 while (code < (buf + a)) x86_nop(code);
1689 emit_bytes (acfg, buf, code - buf);
1691 *tramp_size = NACL_SIZE (15, kNaClAlignment);
1692 g_assert (code - buf == *tramp_size);
1694 g_assert_not_reached ();
1699 * arch_emit_imt_thunk:
1701 * Emit an IMT thunk usable in full-aot mode. The thunk uses 1 got slot which
1702 * points to an array of pointer pairs. The pairs of the form [key, ptr], where
1703 * key is the IMT key, and ptr holds the address of a memory location holding
1704 * the address to branch to if the IMT arg matches the key. The array is
1705 * terminated by a pair whose key is NULL, and whose ptr is the address of the
1707 * TRAMP_SIZE is set to the size of the emitted trampoline.
1710 arch_emit_imt_thunk (MonoAotCompile *acfg, int offset, int *tramp_size)
1712 #if defined(TARGET_AMD64)
1714 #if defined(__native_client_codegen__)
1717 guint8 *labels [16];
1719 guint8 *mov_buf_ptr = mov_buf;
1721 const int kSizeOfMove = 7;
1722 #if defined(__default_codegen__)
1723 code = buf = g_malloc (256);
1724 #elif defined(__native_client_codegen__)
1725 buf_alloc = g_malloc (256 + kNaClAlignment + kSizeOfMove);
1726 buf = ((guint)buf_alloc + kNaClAlignment) & ~kNaClAlignmentMask;
1727 /* The RIP relative move below is emitted first */
1732 /* FIXME: Optimize this, i.e. use binary search etc. */
1733 /* Maybe move the body into a separate function (slower, but much smaller) */
1735 /* MONO_ARCH_IMT_SCRATCH_REG is a free register */
1738 amd64_alu_membase_imm (code, X86_CMP, MONO_ARCH_IMT_SCRATCH_REG, 0, 0);
1740 amd64_branch8 (code, X86_CC_Z, 0, FALSE);
1743 amd64_alu_membase_reg_size (code, X86_CMP, MONO_ARCH_IMT_SCRATCH_REG, 0, MONO_ARCH_IMT_REG, sizeof (gpointer));
1745 amd64_branch8 (code, X86_CC_Z, 0, FALSE);
1748 amd64_alu_reg_imm (code, X86_ADD, MONO_ARCH_IMT_SCRATCH_REG, 2 * sizeof (gpointer));
1749 amd64_jump_code (code, labels [0]);
1752 mono_amd64_patch (labels [2], code);
1753 amd64_mov_reg_membase (code, MONO_ARCH_IMT_SCRATCH_REG, MONO_ARCH_IMT_SCRATCH_REG, sizeof (gpointer), sizeof (gpointer));
1754 amd64_jump_membase (code, MONO_ARCH_IMT_SCRATCH_REG, 0);
1757 mono_amd64_patch (labels [1], code);
1758 /* Load fail tramp */
1759 amd64_alu_reg_imm (code, X86_ADD, MONO_ARCH_IMT_SCRATCH_REG, sizeof (gpointer));
1760 /* Check if there is a fail tramp */
1761 amd64_alu_membase_imm (code, X86_CMP, MONO_ARCH_IMT_SCRATCH_REG, 0, 0);
1763 amd64_branch8 (code, X86_CC_Z, 0, FALSE);
1764 /* Jump to fail tramp */
1765 amd64_jump_membase (code, MONO_ARCH_IMT_SCRATCH_REG, 0);
1768 mono_amd64_patch (labels [3], code);
1769 x86_breakpoint (code);
1771 /* mov <OFFSET>(%rip), MONO_ARCH_IMT_SCRATCH_REG */
1772 amd64_emit_rex (mov_buf_ptr, sizeof(gpointer), MONO_ARCH_IMT_SCRATCH_REG, 0, AMD64_RIP);
1773 *(mov_buf_ptr)++ = (unsigned char)0x8b; /* mov opcode */
1774 x86_address_byte (mov_buf_ptr, 0, MONO_ARCH_IMT_SCRATCH_REG & 0x7, 5);
1775 emit_bytes (acfg, mov_buf, mov_buf_ptr - mov_buf);
1776 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
1778 emit_bytes (acfg, buf, code - buf);
1780 *tramp_size = code - buf + kSizeOfMove;
1781 #if defined(__native_client_codegen__)
1782 /* The tramp will be padded to the next kNaClAlignment bundle. */
1783 *tramp_size = ALIGN_TO ((*tramp_size), kNaClAlignment);
1786 #if defined(__default_codegen__)
1788 #elif defined(__native_client_codegen__)
1792 #elif defined(TARGET_X86)
1794 #ifdef __native_client_codegen__
1797 guint8 *labels [16];
1799 #if defined(__default_codegen__)
1800 code = buf = g_malloc (256);
1801 #elif defined(__native_client_codegen__)
1802 buf_alloc = g_malloc (256 + kNaClAlignment);
1803 code = buf = ((guint)buf_alloc + kNaClAlignment) & ~kNaClAlignmentMask;
1806 /* Allocate a temporary stack slot */
1807 x86_push_reg (code, X86_EAX);
1809 x86_push_reg (code, X86_EAX);
1811 /* Load mscorlib got address */
1812 x86_mov_reg_membase (code, X86_EAX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4);
1814 x86_mov_reg_membase (code, X86_EAX, X86_EAX, offset * sizeof (gpointer), 4);
1817 x86_alu_membase_imm (code, X86_CMP, X86_EAX, 0, 0);
1819 x86_branch8 (code, X86_CC_Z, FALSE, 0);
1822 x86_alu_membase_reg (code, X86_CMP, X86_EAX, 0, MONO_ARCH_IMT_REG);
1824 x86_branch8 (code, X86_CC_Z, FALSE, 0);
1827 x86_alu_reg_imm (code, X86_ADD, X86_EAX, 2 * sizeof (gpointer));
1828 x86_jump_code (code, labels [0]);
1831 mono_x86_patch (labels [2], code);
1832 x86_mov_reg_membase (code, X86_EAX, X86_EAX, sizeof (gpointer), 4);
1833 x86_mov_reg_membase (code, X86_EAX, X86_EAX, 0, 4);
1834 /* Save the target address to the temporary stack location */
1835 x86_mov_membase_reg (code, X86_ESP, 4, X86_EAX, 4);
1837 x86_pop_reg (code, X86_EAX);
1838 /* Jump to the target address */
1842 mono_x86_patch (labels [1], code);
1843 /* Load fail tramp */
1844 x86_mov_reg_membase (code, X86_EAX, X86_EAX, sizeof (gpointer), 4);
1845 x86_alu_membase_imm (code, X86_CMP, X86_EAX, 0, 0);
1847 x86_branch8 (code, X86_CC_Z, FALSE, 0);
1848 /* Jump to fail tramp */
1849 x86_mov_membase_reg (code, X86_ESP, 4, X86_EAX, 4);
1850 x86_pop_reg (code, X86_EAX);
1854 mono_x86_patch (labels [3], code);
1855 x86_breakpoint (code);
1857 #ifdef __native_client_codegen__
1859 /* emit nops to next 32 byte alignment */
1860 int a = (~kNaClAlignmentMask) & ((code - buf) + kNaClAlignment - 1);
1861 while (code < (buf + a)) x86_nop(code);
1864 emit_bytes (acfg, buf, code - buf);
1866 *tramp_size = code - buf;
1868 #if defined(__default_codegen__)
1870 #elif defined(__native_client_codegen__)
1874 #elif defined(TARGET_ARM)
1876 guint8 *code, *code2, *labels [16];
1880 /* The IMT method is in v5 */
1882 /* Need at least two free registers, plus a slot for storing the pc */
1883 ARM_PUSH (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_R2));
1885 /* Load the parameter from the GOT */
1886 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_PC, 0);
1887 ARM_LDR_REG_REG (code, ARMREG_R0, ARMREG_PC, ARMREG_R0);
1890 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_R0, 0);
1891 ARM_CMP_REG_REG (code, ARMREG_R1, ARMREG_V5);
1893 ARM_B_COND (code, ARMCOND_EQ, 0);
1895 /* End-of-loop check */
1896 ARM_CMP_REG_IMM (code, ARMREG_R1, 0, 0);
1898 ARM_B_COND (code, ARMCOND_EQ, 0);
1901 ARM_ADD_REG_IMM8 (code, ARMREG_R0, ARMREG_R0, sizeof (gpointer) * 2);
1904 arm_patch (labels [4], labels [1]);
1907 arm_patch (labels [2], code);
1908 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4);
1909 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 0);
1910 /* Save it to the third stack slot */
1911 ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8);
1912 /* Restore the registers and branch */
1913 ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC));
1916 arm_patch (labels [3], code);
1917 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4);
1918 ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8);
1919 ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC));
1923 ARM_LDR_IMM (code2, ARMREG_R0, ARMREG_PC, (code - (labels [0] + 8)));
1925 emit_bytes (acfg, buf, code - buf);
1926 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) + (code - (labels [0] + 8)) - 4);
1928 *tramp_size = code - buf + 4;
1929 #elif defined(TARGET_ARM64)
1930 arm64_emit_imt_thunk (acfg, offset, tramp_size);
1931 #elif defined(TARGET_POWERPC)
1933 guint8 *code, *labels [16];
1937 /* Load the mscorlib got address */
1938 ppc_ldptr (code, ppc_r11, sizeof (gpointer), ppc_r30);
1939 /* Load the parameter from the GOT */
1940 ppc_load (code, ppc_r0, offset * sizeof (gpointer));
1941 ppc_ldptr_indexed (code, ppc_r11, ppc_r11, ppc_r0);
1943 /* Load and check key */
1945 ppc_ldptr (code, ppc_r0, 0, ppc_r11);
1946 ppc_cmp (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, MONO_ARCH_IMT_REG);
1948 ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0);
1950 /* End-of-loop check */
1951 ppc_cmpi (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, 0);
1953 ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0);
1956 ppc_addi (code, ppc_r11, ppc_r11, 2 * sizeof (gpointer));
1959 mono_ppc_patch (labels [4], labels [1]);
1962 mono_ppc_patch (labels [2], code);
1963 ppc_ldptr (code, ppc_r11, sizeof (gpointer), ppc_r11);
1964 /* r11 now contains the value of the vtable slot */
1965 /* this is not a function descriptor on ppc64 */
1966 ppc_ldptr (code, ppc_r11, 0, ppc_r11);
1967 ppc_mtctr (code, ppc_r11);
1968 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
1971 mono_ppc_patch (labels [3], code);
1975 *tramp_size = code - buf;
1977 emit_bytes (acfg, buf, code - buf);
1979 g_assert_not_reached ();
1984 * arch_emit_gsharedvt_arg_trampoline:
1986 * Emit code for a gsharedvt arg trampoline. OFFSET is the offset of the first of
1987 * two GOT slots which contain the argument, and the code to jump to.
1988 * TRAMP_SIZE is set to the size of the emitted trampoline.
1989 * These kinds of trampolines cannot be enumerated statically, since there could
1990 * be one trampoline per method instantiation, so we emit the same code for all
1991 * trampolines, and parameterize them using two GOT slots.
1994 arch_emit_gsharedvt_arg_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
1996 #if defined(TARGET_X86)
2000 /* Similar to the PPC code above */
2002 g_assert (MONO_ARCH_RGCTX_REG != X86_ECX);
2005 /* Load mscorlib got address */
2006 x86_mov_reg_membase (code, X86_ECX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4);
2008 x86_mov_reg_membase (code, X86_EAX, X86_ECX, offset * sizeof (gpointer), 4);
2009 /* Branch to the target address */
2010 x86_jump_membase (code, X86_ECX, (offset + 1) * sizeof (gpointer));
2012 #ifdef __native_client_codegen__
2014 /* emit nops to next 32 byte alignment */
2015 int a = (~kNaClAlignmentMask) & ((code - buf) + kNaClAlignment - 1);
2016 while (code < (buf + a)) x86_nop(code);
2020 emit_bytes (acfg, buf, code - buf);
2022 *tramp_size = NACL_SIZE (15, kNaClAlignment);
2023 g_assert (code - buf == *tramp_size);
2024 #elif defined(TARGET_ARM)
2028 /* The same as mono_arch_get_gsharedvt_arg_trampoline (), but for AOT */
2029 /* Similar to arch_emit_specific_trampoline () */
2032 ARM_PUSH (code, (1 << ARMREG_R0) | (1 << ARMREG_R1) | (1 << ARMREG_R2) | (1 << ARMREG_R3));
2033 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 8);
2034 /* Load the arg value from the GOT */
2035 ARM_LDR_REG_REG (code, ARMREG_R0, ARMREG_PC, ARMREG_R1);
2036 /* Load the addr from the GOT */
2037 ARM_LDR_REG_REG (code, ARMREG_R1, ARMREG_PC, ARMREG_R1);
2039 ARM_BX (code, ARMREG_R1);
2041 g_assert (code - buf == 20);
2044 emit_bytes (acfg, buf, code - buf);
2045 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) + 4);
2046 #elif defined(TARGET_ARM64)
2047 arm64_emit_gsharedvt_arg_trampoline (acfg, offset, tramp_size);
2049 g_assert_not_reached ();
2054 arch_emit_autoreg (MonoAotCompile *acfg, char *symbol)
2056 #if defined(TARGET_POWERPC) && defined(__mono_ilp32__)
2057 /* Based on code generated by gcc */
2058 emit_unset_mode (acfg);
2061 #if defined(_MSC_VER) || defined(MONO_CROSS_COMPILE)
2062 ".section .ctors,\"aw\",@progbits\n"
2066 ".section .opd,\"aw\"\n"
2069 ".long .%s,.TOC.@tocbase32\n"
2072 ".type .%s,@function\n"
2074 ".%s:\n", symbol, symbol, symbol, symbol, symbol, symbol, symbol, symbol);
2076 ".section .ctors,\"aw\",@progbits\n"
2080 ".section .opd,\"aw\"\n"
2083 ".long .%1$s,.TOC.@tocbase32\n"
2084 ".size %1$s,.-%1$s\n"
2086 ".type .%1$s,@function\n"
2088 ".%1$s:\n", symbol);
2099 "lis 3, .Lglobals@h\n"
2100 "ori 3, 3, .Lglobals@l\n"
2101 "bl .mono_aot_register_module\n"
2109 #if defined(_MSC_VER) || defined(MONO_CROSS_COMPILE)
2111 ".size .%s,.-.%s\n", symbol, symbol);
2114 ".size .%1$s,.-.%1$s\n", symbol);
2120 /* END OF ARCH SPECIFIC CODE */
2123 mono_get_field_token (MonoClassField *field)
2125 MonoClass *klass = field->parent;
2128 for (i = 0; i < klass->field.count; ++i) {
2129 if (field == &klass->fields [i])
2130 return MONO_TOKEN_FIELD_DEF | (klass->field.first + 1 + i);
2133 g_assert_not_reached ();
2138 encode_value (gint32 value, guint8 *buf, guint8 **endbuf)
2142 //printf ("ENCODE: %d 0x%x.\n", value, value);
2145 * Same encoding as the one used in the metadata, extended to handle values
2146 * greater than 0x1fffffff.
2148 if ((value >= 0) && (value <= 127))
2150 else if ((value >= 0) && (value <= 16383)) {
2151 p [0] = 0x80 | (value >> 8);
2152 p [1] = value & 0xff;
2154 } else if ((value >= 0) && (value <= 0x1fffffff)) {
2155 p [0] = (value >> 24) | 0xc0;
2156 p [1] = (value >> 16) & 0xff;
2157 p [2] = (value >> 8) & 0xff;
2158 p [3] = value & 0xff;
2163 p [1] = (value >> 24) & 0xff;
2164 p [2] = (value >> 16) & 0xff;
2165 p [3] = (value >> 8) & 0xff;
2166 p [4] = value & 0xff;
2174 stream_init (MonoDynamicStream *sh)
2177 sh->alloc_size = 4096;
2178 sh->data = g_malloc (4096);
2180 /* So offsets are > 0 */
2186 make_room_in_stream (MonoDynamicStream *stream, int size)
2188 if (size <= stream->alloc_size)
2191 while (stream->alloc_size <= size) {
2192 if (stream->alloc_size < 4096)
2193 stream->alloc_size = 4096;
2195 stream->alloc_size *= 2;
2198 stream->data = g_realloc (stream->data, stream->alloc_size);
2202 add_stream_data (MonoDynamicStream *stream, const char *data, guint32 len)
2206 make_room_in_stream (stream, stream->index + len);
2207 memcpy (stream->data + stream->index, data, len);
2208 idx = stream->index;
2209 stream->index += len;
2216 * Add data to the binary blob inside the aot image. Returns the offset inside the
2217 * blob where the data was stored.
2220 add_to_blob (MonoAotCompile *acfg, const guint8 *data, guint32 data_len)
2222 if (acfg->blob.alloc_size == 0)
2223 stream_init (&acfg->blob);
2225 return add_stream_data (&acfg->blob, (char*)data, data_len);
2229 add_to_blob_aligned (MonoAotCompile *acfg, const guint8 *data, guint32 data_len, guint32 align)
2234 if (acfg->blob.alloc_size == 0)
2235 stream_init (&acfg->blob);
2237 count = acfg->blob.index % align;
2239 /* we assume the stream data will be aligned */
2241 add_stream_data (&acfg->blob, buf, 4 - count);
2243 return add_stream_data (&acfg->blob, (char*)data, data_len);
2247 * emit_offset_table:
2249 * Emit a table of increasing offsets in a compact form using differential encoding.
2250 * There is an index entry for each GROUP_SIZE number of entries. The greater the
2251 * group size, the more compact the table becomes, but the slower it becomes to compute
2252 * a given entry. Returns the size of the table.
2255 emit_offset_table (MonoAotCompile *acfg, int noffsets, int group_size, gint32 *offsets)
2257 gint32 current_offset;
2258 int i, buf_size, ngroups, index_entry_size;
2260 guint32 *index_offsets;
2262 ngroups = (noffsets + (group_size - 1)) / group_size;
2264 index_offsets = g_new0 (guint32, ngroups);
2266 buf_size = noffsets * 4;
2267 p = buf = g_malloc0 (buf_size);
2270 for (i = 0; i < noffsets; ++i) {
2271 //printf ("D: %d -> %d\n", i, offsets [i]);
2272 if ((i % group_size) == 0) {
2273 index_offsets [i / group_size] = p - buf;
2274 /* Emit the full value for these entries */
2275 encode_value (offsets [i], p, &p);
2277 /* The offsets are allowed to be non-increasing */
2278 //g_assert (offsets [i] >= current_offset);
2279 encode_value (offsets [i] - current_offset, p, &p);
2281 current_offset = offsets [i];
2284 if (ngroups && index_offsets [ngroups - 1] < 65000)
2285 index_entry_size = 2;
2287 index_entry_size = 4;
2289 /* Emit the header */
2290 emit_int32 (acfg, noffsets);
2291 emit_int32 (acfg, group_size);
2292 emit_int32 (acfg, ngroups);
2293 emit_int32 (acfg, index_entry_size);
2295 /* Emit the index */
2296 for (i = 0; i < ngroups; ++i) {
2297 if (index_entry_size == 2)
2298 emit_int16 (acfg, index_offsets [i]);
2300 emit_int32 (acfg, index_offsets [i]);
2304 emit_bytes (acfg, buf, p - buf);
2306 return (int)(p - buf) + (ngroups * 4);
2310 get_image_index (MonoAotCompile *cfg, MonoImage *image)
2314 index = GPOINTER_TO_UINT (g_hash_table_lookup (cfg->image_hash, image));
2318 index = g_hash_table_size (cfg->image_hash);
2319 g_hash_table_insert (cfg->image_hash, image, GUINT_TO_POINTER (index + 1));
2320 g_ptr_array_add (cfg->image_table, image);
2326 find_typespec_for_class (MonoAotCompile *acfg, MonoClass *klass)
2329 int len = acfg->image->tables [MONO_TABLE_TYPESPEC].rows;
2331 /* FIXME: Search referenced images as well */
2332 if (!acfg->typespec_classes) {
2333 acfg->typespec_classes = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoClass*) * len);
2334 for (i = 0; i < len; ++i) {
2336 acfg->typespec_classes [i] = mono_class_get_and_inflate_typespec_checked (acfg->image, MONO_TOKEN_TYPE_SPEC | (i + 1), NULL, &error);
2337 g_assert (mono_error_ok (&error)); /* FIXME error handling */
2340 for (i = 0; i < len; ++i) {
2341 if (acfg->typespec_classes [i] == klass)
2346 return MONO_TOKEN_TYPE_SPEC | (i + 1);
2352 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf);
2355 encode_klass_ref (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf);
2358 encode_ginst (MonoAotCompile *acfg, MonoGenericInst *inst, guint8 *buf, guint8 **endbuf);
2361 encode_type (MonoAotCompile *acfg, MonoType *t, guint8 *buf, guint8 **endbuf);
2364 encode_klass_ref_inner (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf)
2369 * The encoding begins with one of the MONO_AOT_TYPEREF values, followed by additional
2373 if (klass->generic_class) {
2375 g_assert (klass->type_token);
2377 /* Find a typespec for a class if possible */
2378 token = find_typespec_for_class (acfg, klass);
2380 encode_value (MONO_AOT_TYPEREF_TYPESPEC_TOKEN, p, &p);
2381 encode_value (token, p, &p);
2383 MonoClass *gclass = klass->generic_class->container_class;
2384 MonoGenericInst *inst = klass->generic_class->context.class_inst;
2385 static int count = 0;
2388 encode_value (MONO_AOT_TYPEREF_GINST, p, &p);
2389 encode_klass_ref (acfg, gclass, p, &p);
2390 encode_ginst (acfg, inst, p, &p);
2394 } else if (klass->type_token) {
2395 int iindex = get_image_index (acfg, klass->image);
2397 g_assert (mono_metadata_token_code (klass->type_token) == MONO_TOKEN_TYPE_DEF);
2399 encode_value (MONO_AOT_TYPEREF_TYPEDEF_INDEX, p, &p);
2400 encode_value (klass->type_token - MONO_TOKEN_TYPE_DEF, p, &p);
2402 encode_value (MONO_AOT_TYPEREF_TYPEDEF_INDEX_IMAGE, p, &p);
2403 encode_value (klass->type_token - MONO_TOKEN_TYPE_DEF, p, &p);
2404 encode_value (get_image_index (acfg, klass->image), p, &p);
2406 } else if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) {
2407 MonoGenericContainer *container = mono_type_get_generic_param_owner (&klass->byval_arg);
2408 MonoGenericParam *par = klass->byval_arg.data.generic_param;
2410 encode_value (MONO_AOT_TYPEREF_VAR, p, &p);
2411 encode_value (klass->byval_arg.type, p, &p);
2412 encode_value (mono_type_get_generic_param_num (&klass->byval_arg), p, &p);
2414 encode_value (container ? 1 : 0, p, &p);
2416 encode_value (container->is_method, p, &p);
2417 g_assert (par->serial == 0);
2418 if (container->is_method)
2419 encode_method_ref (acfg, container->owner.method, p, &p);
2421 encode_klass_ref (acfg, container->owner.klass, p, &p);
2423 encode_value (par->serial, p, &p);
2425 } else if (klass->byval_arg.type == MONO_TYPE_PTR) {
2426 encode_value (MONO_AOT_TYPEREF_PTR, p, &p);
2427 encode_type (acfg, &klass->byval_arg, p, &p);
2430 g_assert (klass->rank > 0);
2431 encode_value (MONO_AOT_TYPEREF_ARRAY, p, &p);
2432 encode_value (klass->rank, p, &p);
2433 encode_klass_ref (acfg, klass->element_class, p, &p);
2441 * Encode a reference to KLASS. We use our home-grown encoding instead of the
2442 * standard metadata encoding.
2445 encode_klass_ref (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf)
2447 gboolean shared = FALSE;
2450 * The encoding of generic instances is large so emit them only once.
2452 if (klass->generic_class) {
2454 g_assert (klass->type_token);
2456 /* Find a typespec for a class if possible */
2457 token = find_typespec_for_class (acfg, klass);
2460 } else if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) {
2465 guint offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->klass_blob_hash, klass));
2469 buf2 = g_malloc (1024);
2472 encode_klass_ref_inner (acfg, klass, p, &p);
2473 g_assert (p - buf2 < 1024);
2475 offset = add_to_blob (acfg, buf2, p - buf2);
2478 g_hash_table_insert (acfg->klass_blob_hash, klass, GUINT_TO_POINTER (offset + 1));
2484 encode_value (MONO_AOT_TYPEREF_BLOB_INDEX, p, &p);
2485 encode_value (offset, p, &p);
2490 encode_klass_ref_inner (acfg, klass, buf, endbuf);
2494 encode_field_info (MonoAotCompile *cfg, MonoClassField *field, guint8 *buf, guint8 **endbuf)
2496 guint32 token = mono_get_field_token (field);
2499 encode_klass_ref (cfg, field->parent, p, &p);
2500 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_FIELD_DEF);
2501 encode_value (token - MONO_TOKEN_FIELD_DEF, p, &p);
2506 encode_ginst (MonoAotCompile *acfg, MonoGenericInst *inst, guint8 *buf, guint8 **endbuf)
2511 encode_value (inst->type_argc, p, &p);
2512 for (i = 0; i < inst->type_argc; ++i)
2513 encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
2518 encode_generic_context (MonoAotCompile *acfg, MonoGenericContext *context, guint8 *buf, guint8 **endbuf)
2521 MonoGenericInst *inst;
2523 inst = context->class_inst;
2525 g_assert (inst->type_argc);
2526 encode_ginst (acfg, inst, p, &p);
2528 encode_value (0, p, &p);
2530 inst = context->method_inst;
2532 g_assert (inst->type_argc);
2533 encode_ginst (acfg, inst, p, &p);
2535 encode_value (0, p, &p);
2541 encode_type (MonoAotCompile *acfg, MonoType *t, guint8 *buf, guint8 **endbuf)
2545 g_assert (t->num_mods == 0);
2546 /* t->attrs can be ignored */
2547 //g_assert (t->attrs == 0);
2550 *p = MONO_TYPE_PINNED;
2554 *p = MONO_TYPE_BYREF;
2562 case MONO_TYPE_VOID:
2563 case MONO_TYPE_BOOLEAN:
2564 case MONO_TYPE_CHAR:
2577 case MONO_TYPE_STRING:
2578 case MONO_TYPE_OBJECT:
2579 case MONO_TYPE_TYPEDBYREF:
2581 case MONO_TYPE_VALUETYPE:
2582 case MONO_TYPE_CLASS:
2583 encode_klass_ref (acfg, mono_class_from_mono_type (t), p, &p);
2585 case MONO_TYPE_SZARRAY:
2586 encode_klass_ref (acfg, t->data.klass, p, &p);
2589 encode_type (acfg, t->data.type, p, &p);
2591 case MONO_TYPE_GENERICINST: {
2592 MonoClass *gclass = t->data.generic_class->container_class;
2593 MonoGenericInst *inst = t->data.generic_class->context.class_inst;
2595 encode_klass_ref (acfg, gclass, p, &p);
2596 encode_ginst (acfg, inst, p, &p);
2599 case MONO_TYPE_ARRAY: {
2600 MonoArrayType *array = t->data.array;
2603 encode_klass_ref (acfg, array->eklass, p, &p);
2604 encode_value (array->rank, p, &p);
2605 encode_value (array->numsizes, p, &p);
2606 for (i = 0; i < array->numsizes; ++i)
2607 encode_value (array->sizes [i], p, &p);
2608 encode_value (array->numlobounds, p, &p);
2609 for (i = 0; i < array->numlobounds; ++i)
2610 encode_value (array->lobounds [i], p, &p);
2614 case MONO_TYPE_MVAR:
2615 encode_klass_ref (acfg, mono_class_from_mono_type (t), p, &p);
2618 g_assert_not_reached ();
2625 encode_signature (MonoAotCompile *acfg, MonoMethodSignature *sig, guint8 *buf, guint8 **endbuf)
2631 /* Similar to the metadata encoding */
2632 if (sig->generic_param_count)
2636 if (sig->explicit_this)
2638 flags |= (sig->call_convention & 0x0F);
2642 if (sig->generic_param_count)
2643 encode_value (sig->generic_param_count, p, &p);
2644 encode_value (sig->param_count, p, &p);
2646 encode_type (acfg, sig->ret, p, &p);
2647 for (i = 0; i < sig->param_count; ++i) {
2648 if (sig->sentinelpos == i) {
2649 *p = MONO_TYPE_SENTINEL;
2652 encode_type (acfg, sig->params [i], p, &p);
2658 #define MAX_IMAGE_INDEX 250
2661 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf)
2663 guint32 image_index = get_image_index (acfg, method->klass->image);
2664 guint32 token = method->token;
2665 MonoJumpInfoToken *ji;
2669 * The encoding for most methods is as follows:
2670 * - image index encoded as a leb128
2671 * - token index encoded as a leb128
2672 * Values of image index >= MONO_AOT_METHODREF_MIN are used to mark additional
2673 * types of method encodings.
2676 /* Mark methods which can't use aot trampolines because they need the further
2677 * processing in mono_magic_trampoline () which requires a MonoMethod*.
2679 if ((method->is_generic && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) ||
2680 (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED))
2681 encode_value ((MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE << 24), p, &p);
2683 if (method->wrapper_type) {
2684 encode_value ((MONO_AOT_METHODREF_WRAPPER << 24), p, &p);
2686 encode_value (method->wrapper_type, p, &p);
2688 switch (method->wrapper_type) {
2689 case MONO_WRAPPER_REMOTING_INVOKE:
2690 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2691 case MONO_WRAPPER_XDOMAIN_INVOKE: {
2694 m = mono_marshal_method_from_wrapper (method);
2696 encode_method_ref (acfg, m, p, &p);
2699 case MONO_WRAPPER_PROXY_ISINST:
2700 case MONO_WRAPPER_LDFLD:
2701 case MONO_WRAPPER_LDFLDA:
2702 case MONO_WRAPPER_STFLD:
2703 case MONO_WRAPPER_ISINST: {
2704 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2707 encode_klass_ref (acfg, info->d.proxy.klass, p, &p);
2710 case MONO_WRAPPER_LDFLD_REMOTE:
2711 case MONO_WRAPPER_STFLD_REMOTE:
2713 case MONO_WRAPPER_ALLOC: {
2714 AllocatorWrapperInfo *info = mono_marshal_get_wrapper_info (method);
2716 /* The GC name is saved once in MonoAotFileInfo */
2717 g_assert (info->alloc_type != -1);
2718 encode_value (info->alloc_type, p, &p);
2721 case MONO_WRAPPER_WRITE_BARRIER:
2723 case MONO_WRAPPER_STELEMREF: {
2724 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2727 encode_value (info->subtype, p, &p);
2728 if (info->subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF)
2729 encode_value (info->d.virtual_stelemref.kind, p, &p);
2732 case MONO_WRAPPER_UNKNOWN: {
2733 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2736 encode_value (info->subtype, p, &p);
2737 if (info->subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE ||
2738 info->subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR)
2739 encode_klass_ref (acfg, method->klass, p, &p);
2740 else if (info->subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER)
2741 encode_method_ref (acfg, info->d.synchronized_inner.method, p, &p);
2742 else if (info->subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR)
2743 encode_method_ref (acfg, info->d.array_accessor.method, p, &p);
2746 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
2747 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2750 encode_value (info->subtype, p, &p);
2751 if (info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
2752 strcpy ((char*)p, method->name);
2753 p += strlen (method->name) + 1;
2754 } else if (info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT) {
2755 encode_method_ref (acfg, info->d.managed_to_native.method, p, &p);
2757 g_assert (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_PINVOKE);
2758 encode_method_ref (acfg, info->d.managed_to_native.method, p, &p);
2762 case MONO_WRAPPER_SYNCHRONIZED: {
2765 m = mono_marshal_method_from_wrapper (method);
2767 g_assert (m != method);
2768 encode_method_ref (acfg, m, p, &p);
2771 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
2772 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2775 encode_value (info->subtype, p, &p);
2777 if (info->subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) {
2778 encode_value (info->d.element_addr.rank, p, &p);
2779 encode_value (info->d.element_addr.elem_size, p, &p);
2780 } else if (info->subtype == WRAPPER_SUBTYPE_STRING_CTOR) {
2781 encode_method_ref (acfg, info->d.string_ctor.method, p, &p);
2783 g_assert_not_reached ();
2787 case MONO_WRAPPER_CASTCLASS: {
2788 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2791 encode_value (info->subtype, p, &p);
2794 case MONO_WRAPPER_RUNTIME_INVOKE: {
2795 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2798 encode_value (info->subtype, p, &p);
2799 if (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL)
2800 encode_method_ref (acfg, info->d.runtime_invoke.method, p, &p);
2801 else if (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL)
2802 encode_signature (acfg, info->d.runtime_invoke.sig, p, &p);
2805 case MONO_WRAPPER_DELEGATE_INVOKE:
2806 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
2807 case MONO_WRAPPER_DELEGATE_END_INVOKE: {
2808 if (method->is_inflated) {
2809 /* These wrappers are identified by their class */
2810 encode_value (1, p, &p);
2811 encode_klass_ref (acfg, method->klass, p, &p);
2813 MonoMethodSignature *sig = mono_method_signature (method);
2814 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2816 encode_value (0, p, &p);
2817 if (method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE)
2818 encode_value (info ? info->subtype : 0, p, &p);
2819 encode_signature (acfg, sig, p, &p);
2823 case MONO_WRAPPER_NATIVE_TO_MANAGED: {
2824 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2827 encode_method_ref (acfg, info->d.native_to_managed.method, p, &p);
2828 encode_klass_ref (acfg, info->d.native_to_managed.klass, p, &p);
2832 g_assert_not_reached ();
2834 } else if (mono_method_signature (method)->is_inflated) {
2836 * This is a generic method, find the original token which referenced it and
2838 * Obtain the token from information recorded by the JIT.
2840 ji = g_hash_table_lookup (acfg->token_info_hash, method);
2842 image_index = get_image_index (acfg, ji->image);
2843 g_assert (image_index < MAX_IMAGE_INDEX);
2846 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
2847 encode_value (image_index, p, &p);
2848 encode_value (token, p, &p);
2850 MonoMethod *declaring;
2851 MonoGenericContext *context = mono_method_get_context (method);
2853 g_assert (method->is_inflated);
2854 declaring = ((MonoMethodInflated*)method)->declaring;
2857 * This might be a non-generic method of a generic instance, which
2858 * doesn't have a token since the reference is generated by the JIT
2859 * like Nullable:Box/Unbox, or by generic sharing.
2861 encode_value ((MONO_AOT_METHODREF_GINST << 24), p, &p);
2862 /* Encode the klass */
2863 encode_klass_ref (acfg, method->klass, p, &p);
2864 /* Encode the method */
2865 image_index = get_image_index (acfg, method->klass->image);
2866 g_assert (image_index < MAX_IMAGE_INDEX);
2867 g_assert (declaring->token);
2868 token = declaring->token;
2869 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
2870 encode_value (image_index, p, &p);
2871 encode_value (token, p, &p);
2872 encode_generic_context (acfg, context, p, &p);
2874 } else if (token == 0) {
2875 /* This might be a method of a constructed type like int[,].Set */
2876 /* Obtain the token from information recorded by the JIT */
2877 ji = g_hash_table_lookup (acfg->token_info_hash, method);
2879 image_index = get_image_index (acfg, ji->image);
2880 g_assert (image_index < MAX_IMAGE_INDEX);
2883 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
2884 encode_value (image_index, p, &p);
2885 encode_value (token, p, &p);
2888 g_assert (method->klass->rank);
2890 /* Encode directly */
2891 encode_value ((MONO_AOT_METHODREF_ARRAY << 24), p, &p);
2892 encode_klass_ref (acfg, method->klass, p, &p);
2893 if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank)
2894 encode_value (0, p, &p);
2895 else if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank * 2)
2896 encode_value (1, p, &p);
2897 else if (!strcmp (method->name, "Get"))
2898 encode_value (2, p, &p);
2899 else if (!strcmp (method->name, "Address"))
2900 encode_value (3, p, &p);
2901 else if (!strcmp (method->name, "Set"))
2902 encode_value (4, p, &p);
2904 g_assert_not_reached ();
2907 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
2909 if (image_index >= MONO_AOT_METHODREF_MIN) {
2910 encode_value ((MONO_AOT_METHODREF_LARGE_IMAGE_INDEX << 24), p, &p);
2911 encode_value (image_index, p, &p);
2912 encode_value (mono_metadata_token_index (token), p, &p);
2914 encode_value ((image_index << 24) | mono_metadata_token_index (token), p, &p);
2921 compare_patches (gconstpointer a, gconstpointer b)
2925 i = (*(MonoJumpInfo**)a)->ip.i;
2926 j = (*(MonoJumpInfo**)b)->ip.i;
2937 static G_GNUC_UNUSED char*
2938 patch_to_string (MonoJumpInfo *patch_info)
2942 str = g_string_new ("");
2944 g_string_append_printf (str, "%s(", get_patch_name (patch_info->type));
2946 switch (patch_info->type) {
2947 case MONO_PATCH_INFO_VTABLE:
2948 mono_type_get_desc (str, &patch_info->data.klass->byval_arg, TRUE);
2953 g_string_append_printf (str, ")");
2954 return g_string_free (str, FALSE);
2960 * Return whenever PATCH_INFO refers to a direct call, and thus requires a
2963 static inline gboolean
2964 is_plt_patch (MonoJumpInfo *patch_info)
2966 switch (patch_info->type) {
2967 case MONO_PATCH_INFO_METHOD:
2968 case MONO_PATCH_INFO_INTERNAL_METHOD:
2969 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
2970 case MONO_PATCH_INFO_ICALL_ADDR:
2971 case MONO_PATCH_INFO_CLASS_INIT:
2972 case MONO_PATCH_INFO_RGCTX_FETCH:
2973 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
2974 case MONO_PATCH_INFO_MONITOR_ENTER:
2975 case MONO_PATCH_INFO_MONITOR_EXIT:
2976 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
2986 * Return the symbol identifying the plt entry PLT_OFFSET.
2989 get_plt_symbol (MonoAotCompile *acfg, int plt_offset, MonoJumpInfo *patch_info)
2993 * The Apple linker reorganizes object files, so it doesn't like branches to local
2994 * labels, since those have no relocations.
2996 return g_strdup_printf ("%sp_%d", acfg->llvm_label_prefix, plt_offset);
2998 return g_strdup_printf ("%sp_%d", acfg->temp_prefix, plt_offset);
3005 * Return a PLT entry which belongs to the method identified by PATCH_INFO.
3007 static MonoPltEntry*
3008 get_plt_entry (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
3012 if (!is_plt_patch (patch_info))
3015 if (!acfg->patch_to_plt_entry [patch_info->type])
3016 acfg->patch_to_plt_entry [patch_info->type] = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
3017 res = g_hash_table_lookup (acfg->patch_to_plt_entry [patch_info->type], patch_info);
3019 // FIXME: This breaks the calculation of final_got_size
3020 if (!acfg->llvm && patch_info->type == MONO_PATCH_INFO_METHOD && (patch_info->data.method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)) {
3022 * Allocate a separate PLT slot for each such patch, since some plt
3023 * entries will refer to the method itself, and some will refer to the
3030 MonoJumpInfo *new_ji;
3032 g_assert (!acfg->final_got_size);
3034 new_ji = mono_patch_info_dup_mp (acfg->mempool, patch_info);
3036 res = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoPltEntry));
3037 res->plt_offset = acfg->plt_offset;
3039 res->symbol = get_plt_symbol (acfg, res->plt_offset, patch_info);
3040 if (acfg->aot_opts.write_symbols)
3041 res->debug_sym = get_plt_entry_debug_sym (acfg, res->ji, acfg->plt_entry_debug_sym_cache);
3043 res->llvm_symbol = g_strdup_printf ("%s_%s_llvm", res->symbol, res->debug_sym);
3045 res->llvm_symbol = g_strdup_printf ("%s_llvm", res->symbol);
3047 g_hash_table_insert (acfg->patch_to_plt_entry [new_ji->type], new_ji, res);
3049 g_hash_table_insert (acfg->plt_offset_to_entry, GUINT_TO_POINTER (res->plt_offset), res);
3051 //g_assert (mono_patch_info_equal (patch_info, new_ji));
3052 //mono_print_ji (patch_info); printf ("\n");
3053 //g_hash_table_print_stats (acfg->patch_to_plt_entry);
3055 acfg->plt_offset ++;
3064 * Returns the offset of the GOT slot where the runtime object resulting from resolving
3065 * JI could be found if it exists, otherwise allocates a new one.
3068 get_got_offset (MonoAotCompile *acfg, MonoJumpInfo *ji)
3072 got_offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_got_offset_by_type [ji->type], ji));
3074 return got_offset - 1;
3076 got_offset = acfg->got_offset;
3077 acfg->got_offset ++;
3079 if (acfg->final_got_size)
3080 g_assert (got_offset < acfg->final_got_size);
3082 acfg->stats.got_slots ++;
3083 acfg->stats.got_slot_types [ji->type] ++;
3085 g_hash_table_insert (acfg->patch_to_got_offset, ji, GUINT_TO_POINTER (got_offset + 1));
3086 g_hash_table_insert (acfg->patch_to_got_offset_by_type [ji->type], ji, GUINT_TO_POINTER (got_offset + 1));
3087 g_ptr_array_add (acfg->got_patches, ji);
3092 /* Add a method to the list of methods which need to be emitted */
3094 add_method_with_index (MonoAotCompile *acfg, MonoMethod *method, int index, gboolean extra)
3097 if (!g_hash_table_lookup (acfg->method_indexes, method)) {
3098 g_ptr_array_add (acfg->methods, method);
3099 g_hash_table_insert (acfg->method_indexes, method, GUINT_TO_POINTER (index + 1));
3100 acfg->nmethods = acfg->methods->len + 1;
3103 if (method->wrapper_type || extra)
3104 g_ptr_array_add (acfg->extra_methods, method);
3108 get_method_index (MonoAotCompile *acfg, MonoMethod *method)
3110 int index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
3118 add_method_full (MonoAotCompile *acfg, MonoMethod *method, gboolean extra, int depth)
3122 index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
3126 index = acfg->method_index;
3127 add_method_with_index (acfg, method, index, extra);
3129 g_ptr_array_add (acfg->method_order, GUINT_TO_POINTER (index));
3131 g_hash_table_insert (acfg->method_depth, method, GUINT_TO_POINTER (depth));
3133 acfg->method_index ++;
3139 add_method (MonoAotCompile *acfg, MonoMethod *method)
3141 return add_method_full (acfg, method, FALSE, 0);
3145 add_extra_method_with_depth (MonoAotCompile *acfg, MonoMethod *method, int depth)
3147 if (mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE))
3148 method = mini_get_shared_method (method);
3150 if (acfg->aot_opts.log_generics)
3151 aot_printf (acfg, "%*sAdding method %s.\n", depth, "", mono_method_full_name (method, TRUE));
3153 add_method_full (acfg, method, TRUE, depth);
3157 add_extra_method (MonoAotCompile *acfg, MonoMethod *method)
3159 add_extra_method_with_depth (acfg, method, 0);
3163 add_jit_icall_wrapper (gpointer key, gpointer value, gpointer user_data)
3165 MonoAotCompile *acfg = user_data;
3166 MonoJitICallInfo *callinfo = value;
3167 MonoMethod *wrapper;
3173 name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
3174 wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_for_pending_exc);
3177 add_method (acfg, wrapper);
3181 get_runtime_invoke_sig (MonoMethodSignature *sig)
3183 MonoMethodBuilder *mb;
3186 mb = mono_mb_new (mono_defaults.object_class, "FOO", MONO_WRAPPER_NONE);
3187 m = mono_mb_create_method (mb, sig, 16);
3188 return mono_marshal_get_runtime_invoke (m, FALSE);
3192 can_marshal_struct (MonoClass *klass)
3194 MonoClassField *field;
3195 gboolean can_marshal = TRUE;
3196 gpointer iter = NULL;
3197 MonoMarshalType *info;
3200 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
3203 info = mono_marshal_load_type_info (klass);
3205 /* Only allow a few field types to avoid asserts in the marshalling code */
3206 while ((field = mono_class_get_fields (klass, &iter))) {
3207 if ((field->type->attrs & FIELD_ATTRIBUTE_STATIC))
3210 switch (field->type->type) {
3215 case MONO_TYPE_BOOLEAN:
3218 case MONO_TYPE_CHAR:
3226 case MONO_TYPE_STRING:
3228 case MONO_TYPE_VALUETYPE:
3229 if (!mono_class_from_mono_type (field->type)->enumtype && !can_marshal_struct (mono_class_from_mono_type (field->type)))
3230 can_marshal = FALSE;
3232 case MONO_TYPE_SZARRAY: {
3233 gboolean has_mspec = FALSE;
3236 for (i = 0; i < info->num_fields; ++i) {
3237 if (info->fields [i].field == field && info->fields [i].mspec)
3242 can_marshal = FALSE;
3246 can_marshal = FALSE;
3252 /* Its hard to compute whenever these can be marshalled or not */
3253 if (!strcmp (klass->name_space, "System.Net.NetworkInformation.MacOsStructs") && strcmp (klass->name, "sockaddr_dl"))
3260 create_gsharedvt_inst (MonoAotCompile *acfg, MonoMethod *method, MonoGenericContext *ctx)
3262 /* Create a vtype instantiation */
3263 MonoGenericContext shared_context;
3265 MonoGenericInst *inst;
3266 MonoGenericContainer *container;
3267 MonoClass **constraints;
3270 memset (ctx, 0, sizeof (MonoGenericContext));
3272 if (method->klass->generic_container) {
3273 shared_context = method->klass->generic_container->context;
3274 inst = shared_context.class_inst;
3276 args = g_new0 (MonoType*, inst->type_argc);
3277 for (i = 0; i < inst->type_argc; ++i) {
3278 args [i] = &mono_defaults.int_class->byval_arg;
3280 ctx->class_inst = mono_metadata_get_generic_inst (inst->type_argc, args);
3282 if (method->is_generic) {
3283 container = mono_method_get_generic_container (method);
3284 shared_context = container->context;
3285 inst = shared_context.method_inst;
3287 args = g_new0 (MonoType*, inst->type_argc);
3288 for (i = 0; i < container->type_argc; ++i) {
3289 MonoGenericParamInfo *info = &container->type_params [i].info;
3290 gboolean ref_only = FALSE;
3292 if (info && info->constraints) {
3293 constraints = info->constraints;
3295 while (*constraints) {
3296 MonoClass *cklass = *constraints;
3297 if (!(cklass == mono_defaults.object_class || (cklass->image == mono_defaults.corlib && !strcmp (cklass->name, "ValueType"))))
3298 /* Inflaring the method with our vtype would not be valid */
3305 args [i] = &mono_defaults.object_class->byval_arg;
3307 args [i] = &mono_defaults.int_class->byval_arg;
3309 ctx->method_inst = mono_metadata_get_generic_inst (inst->type_argc, args);
3314 add_wrappers (MonoAotCompile *acfg)
3316 MonoMethod *method, *m;
3318 MonoMethodSignature *sig, *csig;
3322 * FIXME: Instead of AOTing all the wrappers, it might be better to redesign them
3323 * so there is only one wrapper of a given type, or inlining their contents into their
3326 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3328 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
3329 gboolean skip = FALSE;
3331 method = mono_get_method (acfg->image, token, NULL);
3333 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
3334 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
3335 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
3338 /* Skip methods which can not be handled by get_runtime_invoke () */
3339 sig = mono_method_signature (method);
3342 if ((sig->ret->type == MONO_TYPE_PTR) ||
3343 (sig->ret->type == MONO_TYPE_TYPEDBYREF))
3345 if (mono_class_is_open_constructed_type (sig->ret))
3348 for (j = 0; j < sig->param_count; j++) {
3349 if (sig->params [j]->type == MONO_TYPE_TYPEDBYREF)
3351 if (mono_class_is_open_constructed_type (sig->params [j]))
3355 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
3356 if (!mono_class_is_contextbound (method->klass)) {
3357 MonoDynCallInfo *info = mono_arch_dyn_call_prepare (sig);
3358 gboolean has_nullable = FALSE;
3360 for (j = 0; j < sig->param_count; j++) {
3361 if (sig->params [j]->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (sig->params [j])))
3362 has_nullable = TRUE;
3365 if (info && !has_nullable) {
3366 /* Supported by the dynamic runtime-invoke wrapper */
3370 mono_arch_dyn_call_free (info);
3375 //printf ("%s\n", mono_method_full_name (method, TRUE));
3376 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
3380 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
3381 MonoMethodDesc *desc;
3382 MonoMethod *orig_method;
3385 /* Runtime invoke wrappers */
3387 /* void runtime-invoke () [.cctor] */
3388 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3389 csig->ret = &mono_defaults.void_class->byval_arg;
3390 add_method (acfg, get_runtime_invoke_sig (csig));
3392 /* void runtime-invoke () [Finalize] */
3393 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3395 csig->ret = &mono_defaults.void_class->byval_arg;
3396 add_method (acfg, get_runtime_invoke_sig (csig));
3398 /* void runtime-invoke (string) [exception ctor] */
3399 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
3401 csig->ret = &mono_defaults.void_class->byval_arg;
3402 csig->params [0] = &mono_defaults.string_class->byval_arg;
3403 add_method (acfg, get_runtime_invoke_sig (csig));
3405 /* void runtime-invoke (string, string) [exception ctor] */
3406 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
3408 csig->ret = &mono_defaults.void_class->byval_arg;
3409 csig->params [0] = &mono_defaults.string_class->byval_arg;
3410 csig->params [1] = &mono_defaults.string_class->byval_arg;
3411 add_method (acfg, get_runtime_invoke_sig (csig));
3413 /* string runtime-invoke () [Exception.ToString ()] */
3414 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3416 csig->ret = &mono_defaults.string_class->byval_arg;
3417 add_method (acfg, get_runtime_invoke_sig (csig));
3419 /* void runtime-invoke (string, Exception) [exception ctor] */
3420 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
3422 csig->ret = &mono_defaults.void_class->byval_arg;
3423 csig->params [0] = &mono_defaults.string_class->byval_arg;
3424 csig->params [1] = &mono_defaults.exception_class->byval_arg;
3425 add_method (acfg, get_runtime_invoke_sig (csig));
3427 /* Assembly runtime-invoke (string, bool) [DoAssemblyResolve] */
3428 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
3430 csig->ret = &(mono_class_from_name (
3431 mono_defaults.corlib, "System.Reflection", "Assembly"))->byval_arg;
3432 csig->params [0] = &mono_defaults.string_class->byval_arg;
3433 csig->params [1] = &mono_defaults.boolean_class->byval_arg;
3434 add_method (acfg, get_runtime_invoke_sig (csig));
3436 /* runtime-invoke used by finalizers */
3437 add_method (acfg, mono_marshal_get_runtime_invoke (mono_class_get_method_from_name_flags (mono_defaults.object_class, "Finalize", 0, 0), TRUE));
3439 /* This is used by mono_runtime_capture_context () */
3440 method = mono_get_context_capture_method ();
3442 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
3444 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
3445 add_method (acfg, mono_marshal_get_runtime_invoke_dynamic ());
3449 add_method (acfg, mono_marshal_get_stelemref ());
3451 if (MONO_ARCH_HAVE_TLS_GET) {
3452 /* Managed Allocators */
3453 nallocators = mono_gc_get_managed_allocator_types ();
3454 for (i = 0; i < nallocators; ++i) {
3455 m = mono_gc_get_managed_allocator_by_type (i);
3457 add_method (acfg, m);
3460 /* Monitor Enter/Exit */
3461 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
3462 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
3463 /* This is a v4 method */
3465 method = mono_monitor_get_fast_path (orig_method);
3467 add_method (acfg, method);
3469 mono_method_desc_free (desc);
3471 desc = mono_method_desc_new ("Monitor:Exit(object)", FALSE);
3472 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
3473 g_assert (orig_method);
3474 mono_method_desc_free (desc);
3475 method = mono_monitor_get_fast_path (orig_method);
3477 add_method (acfg, method);
3480 /* Stelemref wrappers */
3482 MonoMethod **wrappers;
3485 wrappers = mono_marshal_get_virtual_stelemref_wrappers (&nwrappers);
3486 for (i = 0; i < nwrappers; ++i)
3487 add_method (acfg, wrappers [i]);
3491 /* castclass_with_check wrapper */
3492 add_method (acfg, mono_marshal_get_castclass_with_cache ());
3493 /* isinst_with_check wrapper */
3494 add_method (acfg, mono_marshal_get_isinst_with_cache ());
3496 #if defined(MONO_ARCH_ENABLE_MONITOR_IL_FASTPATH)
3498 MonoMethodDesc *desc;
3501 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
3502 m = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
3503 mono_method_desc_free (desc);
3505 m = mono_monitor_get_fast_path (m);
3507 add_method (acfg, m);
3512 /* JIT icall wrappers */
3513 /* FIXME: locking - this is "safe" as full-AOT threads don't mutate the icall hash*/
3514 g_hash_table_foreach (mono_get_jit_icall_info (), add_jit_icall_wrapper, acfg);
3518 * remoting-invoke-with-check wrappers are very frequent, so avoid emitting them,
3519 * we use the original method instead at runtime.
3520 * Since full-aot doesn't support remoting, this is not a problem.
3523 /* remoting-invoke wrappers */
3524 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3525 MonoMethodSignature *sig;
3527 token = MONO_TOKEN_METHOD_DEF | (i + 1);
3528 method = mono_get_method (acfg->image, token, NULL);
3530 sig = mono_method_signature (method);
3532 if (sig->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class)) {
3533 m = mono_marshal_get_remoting_invoke_with_check (method);
3535 add_method (acfg, m);
3540 /* delegate-invoke wrappers */
3541 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
3544 MonoCustomAttrInfo *cattr;
3546 token = MONO_TOKEN_TYPE_DEF | (i + 1);
3547 klass = mono_class_get_checked (acfg->image, token, &error);
3550 mono_error_cleanup (&error);
3554 if (!klass->delegate || klass == mono_defaults.delegate_class || klass == mono_defaults.multicastdelegate_class)
3557 if (!klass->generic_container) {
3558 method = mono_get_delegate_invoke (klass);
3560 m = mono_marshal_get_delegate_invoke (method, NULL);
3562 add_method (acfg, m);
3564 method = mono_class_get_method_from_name_flags (klass, "BeginInvoke", -1, 0);
3566 add_method (acfg, mono_marshal_get_delegate_begin_invoke (method));
3568 method = mono_class_get_method_from_name_flags (klass, "EndInvoke", -1, 0);
3570 add_method (acfg, mono_marshal_get_delegate_end_invoke (method));
3572 cattr = mono_custom_attrs_from_class (klass);
3577 for (j = 0; j < cattr->num_attrs; ++j)
3578 if (cattr->attrs [j].ctor && (!strcmp (cattr->attrs [j].ctor->klass->name, "MonoNativeFunctionWrapperAttribute") || !strcmp (cattr->attrs [j].ctor->klass->name, "UnmanagedFunctionPointerAttribute")))
3580 if (j < cattr->num_attrs)
3581 add_method (acfg, mono_marshal_get_native_func_wrapper_aot (klass));
3583 } else if ((acfg->opts & MONO_OPT_GSHAREDVT) && klass->generic_container) {
3584 MonoGenericContext ctx;
3585 MonoMethod *inst, *gshared;
3588 * Emit gsharedvt versions of the generic delegate-invoke wrappers
3591 method = mono_get_delegate_invoke (klass);
3592 create_gsharedvt_inst (acfg, method, &ctx);
3594 inst = mono_class_inflate_generic_method (method, &ctx);
3596 m = mono_marshal_get_delegate_invoke (inst, NULL);
3597 g_assert (m->is_inflated);
3599 gshared = mini_get_shared_method_full (m, FALSE, TRUE);
3600 add_extra_method (acfg, gshared);
3603 method = mono_get_delegate_begin_invoke (klass);
3604 create_gsharedvt_inst (acfg, method, &ctx);
3606 inst = mono_class_inflate_generic_method (method, &ctx);
3608 m = mono_marshal_get_delegate_begin_invoke (inst);
3609 g_assert (m->is_inflated);
3611 gshared = mini_get_shared_method_full (m, FALSE, TRUE);
3612 add_extra_method (acfg, gshared);
3615 method = mono_get_delegate_end_invoke (klass);
3616 create_gsharedvt_inst (acfg, method, &ctx);
3618 inst = mono_class_inflate_generic_method (method, &ctx);
3620 m = mono_marshal_get_delegate_end_invoke (inst);
3621 g_assert (m->is_inflated);
3623 gshared = mini_get_shared_method_full (m, FALSE, TRUE);
3624 add_extra_method (acfg, gshared);
3629 /* array access wrappers */
3630 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
3634 token = MONO_TOKEN_TYPE_SPEC | (i + 1);
3635 klass = mono_class_get_checked (acfg->image, token, &error);
3638 mono_error_cleanup (&error);
3642 if (klass->rank && MONO_TYPE_IS_PRIMITIVE (&klass->element_class->byval_arg)) {
3643 MonoMethod *m, *wrapper;
3645 /* Add runtime-invoke wrappers too */
3647 m = mono_class_get_method_from_name (klass, "Get", -1);
3649 wrapper = mono_marshal_get_array_accessor_wrapper (m);
3650 add_extra_method (acfg, wrapper);
3651 add_extra_method (acfg, mono_marshal_get_runtime_invoke (wrapper, FALSE));
3653 m = mono_class_get_method_from_name (klass, "Set", -1);
3655 wrapper = mono_marshal_get_array_accessor_wrapper (m);
3656 add_extra_method (acfg, wrapper);
3657 add_extra_method (acfg, mono_marshal_get_runtime_invoke (wrapper, FALSE));
3661 /* Synchronized wrappers */
3662 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3663 token = MONO_TOKEN_METHOD_DEF | (i + 1);
3664 method = mono_get_method (acfg->image, token, NULL);
3666 if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) {
3667 if (method->is_generic) {
3669 } else if (method->klass->generic_container) {
3670 MonoGenericContext ctx;
3671 MonoMethod *inst, *gshared, *m;
3674 * Create a generic wrapper for a generic instance, and AOT that.
3676 create_gsharedvt_inst (acfg, method, &ctx);
3677 inst = mono_class_inflate_generic_method (method, &ctx);
3678 m = mono_marshal_get_synchronized_wrapper (inst);
3679 g_assert (m->is_inflated);
3680 gshared = mini_get_shared_method_full (m, FALSE, TRUE);
3681 add_method (acfg, gshared);
3683 add_method (acfg, mono_marshal_get_synchronized_wrapper (method));
3688 /* pinvoke wrappers */
3689 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3691 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
3693 method = mono_get_method (acfg->image, token, NULL);
3695 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
3696 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
3697 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
3701 /* native-to-managed wrappers */
3702 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3704 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
3705 MonoCustomAttrInfo *cattr;
3708 method = mono_get_method (acfg->image, token, NULL);
3711 * Only generate native-to-managed wrappers for methods which have an
3712 * attribute named MonoPInvokeCallbackAttribute. We search for the attribute by
3713 * name to avoid defining a new assembly to contain it.
3715 cattr = mono_custom_attrs_from_method (method);
3718 for (j = 0; j < cattr->num_attrs; ++j)
3719 if (cattr->attrs [j].ctor && !strcmp (cattr->attrs [j].ctor->klass->name, "MonoPInvokeCallbackAttribute"))
3721 if (j < cattr->num_attrs) {
3722 MonoCustomAttrEntry *e = &cattr->attrs [j];
3723 MonoMethodSignature *sig = mono_method_signature (e->ctor);
3724 const char *p = (const char*)e->data;
3726 int slen, num_named, named_type, data_type;
3730 char *export_name = NULL;
3731 MonoMethod *wrapper;
3733 /* this cannot be enforced by the C# compiler so we must give the user some warning before aborting */
3734 if (!(method->flags & METHOD_ATTRIBUTE_STATIC)) {
3735 g_warning ("AOT restriction: Method '%s' must be static since it is decorated with [MonoPInvokeCallback]. See http://ios.xamarin.com/Documentation/Limitations#Reverse_Callbacks",
3736 mono_method_full_name (method, TRUE));
3740 g_assert (sig->param_count == 1);
3741 g_assert (sig->params [0]->type == MONO_TYPE_CLASS && !strcmp (mono_class_from_mono_type (sig->params [0])->name, "Type"));
3744 * Decode the cattr manually since we can't create objects
3745 * during aot compilation.
3751 /* From load_cattr_value () in reflection.c */
3752 slen = mono_metadata_decode_value (p, &p);
3753 n = g_memdup (p, slen + 1);
3755 t = mono_reflection_type_from_name (n, acfg->image);
3759 klass = mono_class_from_mono_type (t);
3760 g_assert (klass->parent == mono_defaults.multicastdelegate_class);
3764 num_named = read16 (p);
3767 g_assert (num_named < 2);
3768 if (num_named == 1) {
3771 MonoType *prop_type;
3773 /* parse ExportSymbol attribute */
3775 named_type = *named;
3780 name_len = mono_metadata_decode_blob_size (named, &named);
3781 name = g_malloc (name_len + 1);
3782 memcpy (name, named, name_len);
3783 name [name_len] = 0;
3786 g_assert (named_type == 0x54);
3787 g_assert (!strcmp (name, "ExportSymbol"));
3789 prop_type = &mono_defaults.string_class->byval_arg;
3791 /* load_cattr_value (), string case */
3792 g_assert (*named != (char)0xff);
3793 slen = mono_metadata_decode_value (named, &named);
3794 export_name = g_malloc (slen + 1);
3795 memcpy (export_name, named, slen);
3796 export_name [slen] = 0;
3800 wrapper = mono_marshal_get_managed_wrapper (method, klass, 0);
3801 add_method (acfg, wrapper);
3803 g_hash_table_insert (acfg->export_names, wrapper, export_name);
3807 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
3808 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
3809 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
3813 /* StructureToPtr/PtrToStructure wrappers */
3814 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
3818 token = MONO_TOKEN_TYPE_DEF | (i + 1);
3819 klass = mono_class_get_checked (acfg->image, token, &error);
3822 mono_error_cleanup (&error);
3826 if (klass->valuetype && !klass->generic_container && can_marshal_struct (klass) &&
3827 !(klass->nested_in && strstr (klass->nested_in->name, "<PrivateImplementationDetails>") == klass->nested_in->name)) {
3828 add_method (acfg, mono_marshal_get_struct_to_ptr (klass));
3829 add_method (acfg, mono_marshal_get_ptr_to_struct (klass));
3835 has_type_vars (MonoClass *klass)
3837 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
3840 return has_type_vars (klass->element_class);
3841 if (klass->generic_class) {
3842 MonoGenericContext *context = &klass->generic_class->context;
3843 if (context->class_inst) {
3846 for (i = 0; i < context->class_inst->type_argc; ++i)
3847 if (has_type_vars (mono_class_from_mono_type (context->class_inst->type_argv [i])))
3851 if (klass->generic_container)
3857 is_vt_inst (MonoGenericInst *inst)
3861 for (i = 0; i < inst->type_argc; ++i) {
3862 MonoType *t = inst->type_argv [i];
3863 if (MONO_TYPE_ISSTRUCT (t) || t->type == MONO_TYPE_VALUETYPE)
3870 method_has_type_vars (MonoMethod *method)
3872 if (has_type_vars (method->klass))
3875 if (method->is_inflated) {
3876 MonoGenericContext *context = mono_method_get_context (method);
3877 if (context->method_inst) {
3880 for (i = 0; i < context->method_inst->type_argc; ++i)
3881 if (has_type_vars (mono_class_from_mono_type (context->method_inst->type_argv [i])))
3888 static void add_generic_class_with_depth (MonoAotCompile *acfg, MonoClass *klass, int depth, const char *ref);
3891 add_generic_class (MonoAotCompile *acfg, MonoClass *klass, gboolean force, const char *ref)
3893 /* This might lead to a huge code blowup so only do it if neccesary */
3894 if (!acfg->aot_opts.full_aot && !force)
3897 add_generic_class_with_depth (acfg, klass, 0, ref);
3901 check_type_depth (MonoType *t, int depth)
3909 case MONO_TYPE_GENERICINST: {
3910 MonoGenericClass *gklass = t->data.generic_class;
3911 MonoGenericInst *ginst = gklass->context.class_inst;
3914 for (i = 0; i < ginst->type_argc; ++i) {
3915 if (check_type_depth (ginst->type_argv [i], depth + 1))
3929 add_types_from_method_header (MonoAotCompile *acfg, MonoMethod *method);
3932 * add_generic_class:
3934 * Add all methods of a generic class.
3937 add_generic_class_with_depth (MonoAotCompile *acfg, MonoClass *klass, int depth, const char *ref)
3940 MonoClassField *field;
3942 gboolean use_gsharedvt = FALSE;
3944 if (!acfg->ginst_hash)
3945 acfg->ginst_hash = g_hash_table_new (NULL, NULL);
3947 mono_class_init (klass);
3949 if (klass->generic_class && klass->generic_class->context.class_inst->is_open)
3952 if (has_type_vars (klass))
3955 if (!klass->generic_class && !klass->rank)
3958 if (klass->exception_type)
3961 if (!acfg->ginst_hash)
3962 acfg->ginst_hash = g_hash_table_new (NULL, NULL);
3964 if (g_hash_table_lookup (acfg->ginst_hash, klass))
3967 if (check_type_depth (&klass->byval_arg, 0))
3970 if (acfg->aot_opts.log_generics)
3971 aot_printf (acfg, "%*sAdding generic instance %s [%s].\n", depth, "", mono_type_full_name (&klass->byval_arg), ref);
3973 g_hash_table_insert (acfg->ginst_hash, klass, klass);
3976 * Use gsharedvt for generic collections with vtype arguments to avoid code blowup.
3977 * Enable this only for some classes since gsharedvt might not support all methods.
3979 if ((acfg->opts & MONO_OPT_GSHAREDVT) && klass->image == mono_defaults.corlib && klass->generic_class && klass->generic_class->context.class_inst && is_vt_inst (klass->generic_class->context.class_inst) &&
3980 (!strcmp (klass->name, "Dictionary`2") || !strcmp (klass->name, "List`1") || !strcmp (klass->name, "ReadOnlyCollection`1")))
3981 use_gsharedvt = TRUE;
3984 while ((method = mono_class_get_methods (klass, &iter))) {
3985 if ((acfg->opts & MONO_OPT_GSHAREDVT) && method->is_inflated && mono_method_get_context (method)->method_inst) {
3987 * This is partial sharing, and we can't handle it yet
3992 if (mono_method_is_generic_sharable_full (method, FALSE, FALSE, use_gsharedvt)) {
3994 add_types_from_method_header (acfg, method);
3998 if (method->is_generic)
4003 * FIXME: Instances which are referenced by these methods are not added,
4004 * for example Array.Resize<int> for List<int>.Add ().
4006 add_extra_method_with_depth (acfg, method, depth + 1);
4010 while ((field = mono_class_get_fields (klass, &iter))) {
4011 if (field->type->type == MONO_TYPE_GENERICINST)
4012 add_generic_class_with_depth (acfg, mono_class_from_mono_type (field->type), depth + 1, "field");
4015 if (klass->delegate) {
4016 method = mono_get_delegate_invoke (klass);
4018 method = mono_marshal_get_delegate_invoke (method, NULL);
4020 if (acfg->aot_opts.log_generics)
4021 aot_printf (acfg, "%*sAdding method %s.\n", depth, "", mono_method_full_name (method, TRUE));
4023 add_method (acfg, method);
4026 /* Add superclasses */
4028 add_generic_class_with_depth (acfg, klass->parent, depth, "parent");
4031 * For ICollection<T>, add instances of the helper methods
4032 * in Array, since a T[] could be cast to ICollection<T>.
4034 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") &&
4035 (!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"))) {
4036 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
4037 MonoClass *array_class = mono_bounded_array_class_get (tclass, 1, FALSE);
4041 if (!strcmp (klass->name, "IEnumerator`1"))
4042 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, "IEnumerable`1");
4044 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
4046 /* Add the T[]/InternalEnumerator class */
4047 if (!strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IEnumerator`1")) {
4051 while ((nclass = mono_class_get_nested_types (array_class->parent, &iter))) {
4052 if (!strcmp (nclass->name, "InternalEnumerator`1"))
4056 nclass = mono_class_inflate_generic_class (nclass, mono_generic_class_get_context (klass->generic_class));
4057 add_generic_class (acfg, nclass, FALSE, "ICollection<T>");
4061 while ((method = mono_class_get_methods (array_class, &iter))) {
4062 if (strstr (method->name, name_prefix)) {
4063 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
4065 add_extra_method_with_depth (acfg, m, depth);
4069 g_free (name_prefix);
4072 /* Add an instance of GenericComparer<T> which is created dynamically by Comparer<T> */
4073 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "Comparer`1")) {
4074 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
4075 MonoClass *icomparable, *gcomparer;
4076 MonoGenericContext ctx;
4077 MonoType *args [16];
4079 memset (&ctx, 0, sizeof (ctx));
4081 icomparable = mono_class_from_name (mono_defaults.corlib, "System", "IComparable`1");
4082 g_assert (icomparable);
4083 args [0] = &tclass->byval_arg;
4084 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
4086 if (mono_class_is_assignable_from (mono_class_inflate_generic_class (icomparable, &ctx), tclass)) {
4087 gcomparer = mono_class_from_name (mono_defaults.corlib, "System.Collections.Generic", "GenericComparer`1");
4088 g_assert (gcomparer);
4089 add_generic_class (acfg, mono_class_inflate_generic_class (gcomparer, &ctx), FALSE, "Comparer<T>");
4093 /* Add an instance of GenericEqualityComparer<T> which is created dynamically by EqualityComparer<T> */
4094 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "EqualityComparer`1")) {
4095 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
4096 MonoClass *iface, *gcomparer;
4097 MonoGenericContext ctx;
4098 MonoType *args [16];
4100 memset (&ctx, 0, sizeof (ctx));
4102 iface = mono_class_from_name (mono_defaults.corlib, "System", "IEquatable`1");
4104 args [0] = &tclass->byval_arg;
4105 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
4107 if (mono_class_is_assignable_from (mono_class_inflate_generic_class (iface, &ctx), tclass)) {
4108 gcomparer = mono_class_from_name (mono_defaults.corlib, "System.Collections.Generic", "GenericEqualityComparer`1");
4109 g_assert (gcomparer);
4110 add_generic_class (acfg, mono_class_inflate_generic_class (gcomparer, &ctx), FALSE, "EqualityComparer<T>");
4116 add_instances_of (MonoAotCompile *acfg, MonoClass *klass, MonoType **insts, int ninsts, gboolean force)
4119 MonoGenericContext ctx;
4120 MonoType *args [16];
4122 if (acfg->aot_opts.no_instances)
4125 memset (&ctx, 0, sizeof (ctx));
4127 for (i = 0; i < ninsts; ++i) {
4128 args [0] = insts [i];
4129 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
4130 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx), force, "");
4135 add_types_from_method_header (MonoAotCompile *acfg, MonoMethod *method)
4137 MonoMethodHeader *header;
4138 MonoMethodSignature *sig;
4141 depth = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_depth, method));
4143 sig = mono_method_signature (method);
4146 for (j = 0; j < sig->param_count; ++j)
4147 if (sig->params [j]->type == MONO_TYPE_GENERICINST)
4148 add_generic_class_with_depth (acfg, mono_class_from_mono_type (sig->params [j]), depth + 1, "arg");
4151 header = mono_method_get_header (method);
4154 for (j = 0; j < header->num_locals; ++j)
4155 if (header->locals [j]->type == MONO_TYPE_GENERICINST)
4156 add_generic_class_with_depth (acfg, mono_class_from_mono_type (header->locals [j]), depth + 1, "local");
4158 mono_loader_clear_error ();
4163 * add_generic_instances:
4165 * Add instances referenced by the METHODSPEC/TYPESPEC table.
4168 add_generic_instances (MonoAotCompile *acfg)
4173 MonoGenericContext *context;
4175 if (acfg->aot_opts.no_instances)
4178 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHODSPEC].rows; ++i) {
4179 token = MONO_TOKEN_METHOD_SPEC | (i + 1);
4180 method = mono_get_method (acfg->image, token, NULL);
4185 if (method->klass->image != acfg->image)
4188 context = mono_method_get_context (method);
4190 if (context && ((context->class_inst && context->class_inst->is_open)))
4194 * For open methods, create an instantiation which can be passed to the JIT.
4195 * FIXME: Handle class_inst as well.
4197 if (context && context->method_inst && context->method_inst->is_open) {
4198 MonoGenericContext shared_context;
4199 MonoGenericInst *inst;
4200 MonoType **type_argv;
4202 MonoMethod *declaring_method;
4203 gboolean supported = TRUE;
4205 /* Check that the context doesn't contain open constructed types */
4206 if (context->class_inst) {
4207 inst = context->class_inst;
4208 for (i = 0; i < inst->type_argc; ++i) {
4209 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)
4211 if (mono_class_is_open_constructed_type (inst->type_argv [i]))
4215 if (context->method_inst) {
4216 inst = context->method_inst;
4217 for (i = 0; i < inst->type_argc; ++i) {
4218 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)
4220 if (mono_class_is_open_constructed_type (inst->type_argv [i]))
4228 memset (&shared_context, 0, sizeof (MonoGenericContext));
4230 inst = context->class_inst;
4232 type_argv = g_new0 (MonoType*, inst->type_argc);
4233 for (i = 0; i < inst->type_argc; ++i) {
4234 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)
4235 type_argv [i] = &mono_defaults.object_class->byval_arg;
4237 type_argv [i] = inst->type_argv [i];
4240 shared_context.class_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
4244 inst = context->method_inst;
4246 type_argv = g_new0 (MonoType*, inst->type_argc);
4247 for (i = 0; i < inst->type_argc; ++i) {
4248 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)
4249 type_argv [i] = &mono_defaults.object_class->byval_arg;
4251 type_argv [i] = inst->type_argv [i];
4254 shared_context.method_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
4258 if (method->is_generic || method->klass->generic_container)
4259 declaring_method = method;
4261 declaring_method = mono_method_get_declaring_generic_method (method);
4263 method = mono_class_inflate_generic_method (declaring_method, &shared_context);
4267 * If the method is fully sharable, it was already added in place of its
4268 * generic definition.
4270 if (mono_method_is_generic_sharable_full (method, FALSE, FALSE, FALSE))
4274 * FIXME: Partially shared methods are not shared here, so we end up with
4275 * many identical methods.
4277 add_extra_method (acfg, method);
4280 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
4284 token = MONO_TOKEN_TYPE_SPEC | (i + 1);
4286 klass = mono_class_get_checked (acfg->image, token, &error);
4287 if (!klass || klass->rank) {
4288 mono_error_cleanup (&error);
4292 add_generic_class (acfg, klass, FALSE, "typespec");
4295 /* Add types of args/locals */
4296 for (i = 0; i < acfg->methods->len; ++i) {
4297 method = g_ptr_array_index (acfg->methods, i);
4298 add_types_from_method_header (acfg, method);
4301 if (acfg->image == mono_defaults.corlib) {
4303 MonoType *insts [256];
4306 insts [ninsts ++] = &mono_defaults.byte_class->byval_arg;
4307 insts [ninsts ++] = &mono_defaults.sbyte_class->byval_arg;
4308 insts [ninsts ++] = &mono_defaults.int16_class->byval_arg;
4309 insts [ninsts ++] = &mono_defaults.uint16_class->byval_arg;
4310 insts [ninsts ++] = &mono_defaults.int32_class->byval_arg;
4311 insts [ninsts ++] = &mono_defaults.uint32_class->byval_arg;
4312 insts [ninsts ++] = &mono_defaults.int64_class->byval_arg;
4313 insts [ninsts ++] = &mono_defaults.uint64_class->byval_arg;
4314 insts [ninsts ++] = &mono_defaults.single_class->byval_arg;
4315 insts [ninsts ++] = &mono_defaults.double_class->byval_arg;
4316 insts [ninsts ++] = &mono_defaults.char_class->byval_arg;
4317 insts [ninsts ++] = &mono_defaults.boolean_class->byval_arg;
4319 /* Add GenericComparer<T> instances for primitive types for Enum.ToString () */
4320 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericComparer`1");
4322 add_instances_of (acfg, klass, insts, ninsts, TRUE);
4323 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericEqualityComparer`1");
4325 add_instances_of (acfg, klass, insts, ninsts, TRUE);
4327 /* Add instances of the array generic interfaces for primitive types */
4328 /* This will add instances of the InternalArray_ helper methods in Array too */
4329 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "ICollection`1");
4331 add_instances_of (acfg, klass, insts, ninsts, TRUE);
4332 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "IList`1");
4334 add_instances_of (acfg, klass, insts, ninsts, TRUE);
4335 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "IEnumerable`1");
4337 add_instances_of (acfg, klass, insts, ninsts, TRUE);
4340 * Add a managed-to-native wrapper of Array.GetGenericValueImpl<object>, which is
4341 * used for all instances of GetGenericValueImpl by the AOT runtime.
4344 MonoGenericContext ctx;
4345 MonoType *args [16];
4346 MonoMethod *get_method;
4347 MonoClass *array_klass = mono_array_class_get (mono_defaults.object_class, 1)->parent;
4349 get_method = mono_class_get_method_from_name (array_klass, "GetGenericValueImpl", 2);
4352 memset (&ctx, 0, sizeof (ctx));
4353 args [0] = &mono_defaults.object_class->byval_arg;
4354 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4355 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (get_method, &ctx), TRUE, TRUE));
4359 /* Same for CompareExchange<T>/Exchange<T> */
4361 MonoGenericContext ctx;
4362 MonoType *args [16];
4364 MonoClass *interlocked_klass = mono_class_from_name (mono_defaults.corlib, "System.Threading", "Interlocked");
4365 gpointer iter = NULL;
4367 while ((m = mono_class_get_methods (interlocked_klass, &iter))) {
4368 if ((!strcmp (m->name, "CompareExchange") || !strcmp (m->name, "Exchange")) && m->is_generic) {
4369 memset (&ctx, 0, sizeof (ctx));
4370 args [0] = &mono_defaults.object_class->byval_arg;
4371 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4372 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (m, &ctx), TRUE, TRUE));
4377 /* Same for Volatile.Read/Write<T> */
4379 MonoGenericContext ctx;
4380 MonoType *args [16];
4382 MonoClass *volatile_klass = mono_class_from_name (mono_defaults.corlib, "System.Threading", "Volatile");
4383 gpointer iter = NULL;
4385 if (volatile_klass) {
4386 while ((m = mono_class_get_methods (volatile_klass, &iter))) {
4387 if ((!strcmp (m->name, "Read") || !strcmp (m->name, "Write")) && m->is_generic) {
4388 memset (&ctx, 0, sizeof (ctx));
4389 args [0] = &mono_defaults.object_class->byval_arg;
4390 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4391 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (m, &ctx), TRUE, TRUE));
4400 * is_direct_callable:
4402 * Return whenever the method identified by JI is directly callable without
4403 * going through the PLT.
4406 is_direct_callable (MonoAotCompile *acfg, MonoMethod *method, MonoJumpInfo *patch_info)
4408 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
4409 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
4411 gboolean direct_callable = TRUE;
4413 if (direct_callable && !(!callee_cfg->has_got_slots && (callee_cfg->method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)))
4414 direct_callable = FALSE;
4415 if ((callee_cfg->method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) && (!method || method->wrapper_type != MONO_WRAPPER_SYNCHRONIZED))
4416 // FIXME: Maybe call the wrapper directly ?
4417 direct_callable = FALSE;
4419 if (acfg->aot_opts.soft_debug || acfg->aot_opts.no_direct_calls) {
4420 /* Disable this so all calls go through load_method (), see the
4421 * mini_get_debug_options ()->load_aot_jit_info_eagerly = TRUE; line in
4422 * mono_debugger_agent_init ().
4424 direct_callable = FALSE;
4427 if (callee_cfg->method->wrapper_type == MONO_WRAPPER_ALLOC)
4428 /* sgen does some initialization when the allocator method is created */
4429 direct_callable = FALSE;
4431 if (direct_callable)
4434 } else if ((patch_info->type == MONO_PATCH_INFO_ICALL_ADDR && patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
4435 if (acfg->aot_opts.direct_pinvoke)
4437 } else if (patch_info->type == MONO_PATCH_INFO_ICALL_ADDR) {
4438 if (acfg->aot_opts.direct_icalls)
4446 #ifdef MONO_ARCH_AOT_SUPPORTED
4448 get_pinvoke_import (MonoAotCompile *acfg, MonoMethod *method)
4450 MonoImage *image = method->klass->image;
4451 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
4452 MonoTableInfo *tables = image->tables;
4453 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
4454 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
4455 guint32 im_cols [MONO_IMPLMAP_SIZE];
4458 import = g_hash_table_lookup (acfg->method_to_pinvoke_import, method);
4462 if (!piinfo->implmap_idx || piinfo->implmap_idx > im->rows)
4465 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
4467 if (!im_cols [MONO_IMPLMAP_SCOPE] || im_cols [MONO_IMPLMAP_SCOPE] > mr->rows)
4470 import = g_strdup_printf ("%s", mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]));
4472 g_hash_table_insert (acfg->method_to_pinvoke_import, method, import);
4479 compare_lne (MonoDebugLineNumberEntry *a, MonoDebugLineNumberEntry *b)
4481 if (a->native_offset == b->native_offset)
4482 return a->il_offset - b->il_offset;
4484 return a->native_offset - b->native_offset;
4488 * compute_line_numbers:
4490 * Returns a sparse array of size CODE_SIZE containing MonoDebugSourceLocation* entries for the native offsets which have a corresponding line number
4493 static MonoDebugSourceLocation**
4494 compute_line_numbers (MonoMethod *method, int code_size, MonoDebugMethodJitInfo *debug_info)
4496 MonoDebugMethodInfo *minfo;
4497 MonoDebugLineNumberEntry *ln_array;
4498 MonoDebugSourceLocation *loc;
4499 int i, prev_line, prev_il_offset;
4500 int *native_to_il_offset = NULL;
4501 MonoDebugSourceLocation **res;
4504 minfo = mono_debug_lookup_method (method);
4507 // FIXME: This seems to happen when two methods have the same cfg->method_to_register
4508 if (debug_info->code_size != code_size)
4511 g_assert (code_size);
4513 /* Compute the native->IL offset mapping */
4515 ln_array = g_new0 (MonoDebugLineNumberEntry, debug_info->num_line_numbers);
4516 memcpy (ln_array, debug_info->line_numbers, debug_info->num_line_numbers * sizeof (MonoDebugLineNumberEntry));
4518 qsort (ln_array, debug_info->num_line_numbers, sizeof (MonoDebugLineNumberEntry), (gpointer)compare_lne);
4520 native_to_il_offset = g_new0 (int, code_size + 1);
4522 for (i = 0; i < debug_info->num_line_numbers; ++i) {
4524 MonoDebugLineNumberEntry *lne = &ln_array [i];
4527 for (j = 0; j < lne->native_offset; ++j)
4528 native_to_il_offset [j] = -1;
4531 if (i < debug_info->num_line_numbers - 1) {
4532 MonoDebugLineNumberEntry *lne_next = &ln_array [i + 1];
4534 for (j = lne->native_offset; j < lne_next->native_offset; ++j)
4535 native_to_il_offset [j] = lne->il_offset;
4537 for (j = lne->native_offset; j < code_size; ++j)
4538 native_to_il_offset [j] = lne->il_offset;
4543 /* Compute the native->line number mapping */
4544 res = g_new0 (MonoDebugSourceLocation*, code_size);
4545 prev_il_offset = -1;
4548 for (i = 0; i < code_size; ++i) {
4549 int il_offset = native_to_il_offset [i];
4551 if (il_offset == -1 || il_offset == prev_il_offset)
4553 prev_il_offset = il_offset;
4554 loc = mono_debug_symfile_lookup_location (minfo, il_offset);
4555 if (!(loc && loc->source_file))
4557 if (loc->row == prev_line) {
4558 mono_debug_symfile_free_location (loc);
4561 prev_line = loc->row;
4562 //printf ("D: %s:%d il=%x native=%x\n", loc->source_file, loc->row, il_offset, i);
4564 /* This will cover the prolog too */
4574 get_file_index (MonoAotCompile *acfg, const char *source_file)
4578 // FIXME: Free these
4579 if (!acfg->dwarf_ln_filenames)
4580 acfg->dwarf_ln_filenames = g_hash_table_new (g_str_hash, g_str_equal);
4581 findex = GPOINTER_TO_INT (g_hash_table_lookup (acfg->dwarf_ln_filenames, source_file));
4583 findex = g_hash_table_size (acfg->dwarf_ln_filenames) + 1;
4584 g_hash_table_insert (acfg->dwarf_ln_filenames, g_strdup (source_file), GINT_TO_POINTER (findex));
4585 emit_unset_mode (acfg);
4586 fprintf (acfg->fp, ".file %d \"%s\"\n", findex, mono_dwarf_escape_path (source_file));
4598 * emit_and_reloc_code:
4600 * Emit the native code in CODE, handling relocations along the way. If GOT_ONLY
4601 * is true, calls are made through the GOT too. This is used for emitting trampolines
4602 * in full-aot mode, since calls made from trampolines couldn't go through the PLT,
4603 * since trampolines are needed to make PTL work.
4606 emit_and_reloc_code (MonoAotCompile *acfg, MonoMethod *method, guint8 *code, guint32 code_len, MonoJumpInfo *relocs, gboolean got_only, MonoDebugMethodJitInfo *debug_info)
4608 int i, pindex, start_index, method_index;
4610 MonoJumpInfo *patch_info;
4611 MonoMethodHeader *header;
4612 MonoDebugSourceLocation **locs = NULL;
4614 #ifdef MONO_ARCH_AOT_SUPPORTED
4615 gboolean direct_call, external_call;
4617 const char *direct_call_target = 0;
4618 const char *direct_pinvoke;
4622 header = mono_method_get_header (method);
4624 method_index = get_method_index (acfg, method);
4627 if (acfg->gas_line_numbers && method && debug_info) {
4628 locs = compute_line_numbers (method, code_len, debug_info);
4630 int findex = get_file_index (acfg, "<unknown>");
4631 emit_unset_mode (acfg);
4632 fprintf (acfg->fp, ".loc %d %d 0\n", findex, 1);
4636 /* Collect and sort relocations */
4637 patches = g_ptr_array_new ();
4638 for (patch_info = relocs; patch_info; patch_info = patch_info->next)
4639 g_ptr_array_add (patches, patch_info);
4640 g_ptr_array_sort (patches, compare_patches);
4643 for (i = 0; i < code_len; i += INST_LEN) {
4645 for (pindex = start_index; pindex < patches->len; ++pindex) {
4646 patch_info = g_ptr_array_index (patches, pindex);
4647 if (patch_info->ip.i >= i)
4651 if (locs && locs [i]) {
4652 MonoDebugSourceLocation *loc = locs [i];
4655 findex = get_file_index (acfg, loc->source_file);
4656 emit_unset_mode (acfg);
4657 fprintf (acfg->fp, ".loc %d %d 0\n", findex, loc->row);
4658 mono_debug_symfile_free_location (loc);
4662 #ifdef MONO_ARCH_AOT_SUPPORTED
4663 if (patch_info && (patch_info->ip.i == i) && (pindex < patches->len)) {
4664 start_index = pindex;
4666 switch (patch_info->type) {
4667 case MONO_PATCH_INFO_NONE:
4669 case MONO_PATCH_INFO_GOT_OFFSET: {
4672 arch_emit_got_offset (acfg, code + i, &code_size);
4673 i += code_size - INST_LEN;
4675 patch_info->type = MONO_PATCH_INFO_NONE;
4678 case MONO_PATCH_INFO_OBJC_SELECTOR_REF: {
4679 int code_size, index;
4680 char *selector = (void*)patch_info->data.target;
4682 if (!acfg->objc_selector_to_index)
4683 acfg->objc_selector_to_index = g_hash_table_new (g_str_hash, g_str_equal);
4684 if (!acfg->objc_selectors)
4685 acfg->objc_selectors = g_ptr_array_new ();
4686 index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->objc_selector_to_index, selector));
4690 index = acfg->objc_selector_index;
4691 g_ptr_array_add (acfg->objc_selectors, (void*)patch_info->data.target);
4692 g_hash_table_insert (acfg->objc_selector_to_index, selector, GUINT_TO_POINTER (index + 1));
4693 acfg->objc_selector_index ++;
4696 arch_emit_objc_selector_ref (acfg, code + i, index, &code_size);
4697 i += code_size - INST_LEN;
4699 patch_info->type = MONO_PATCH_INFO_NONE;
4704 * If this patch is a call, try emitting a direct call instead of
4705 * through a PLT entry. This is possible if the called method is in
4706 * the same assembly and requires no initialization.
4708 direct_call = FALSE;
4709 external_call = FALSE;
4710 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
4711 if (!got_only && is_direct_callable (acfg, method, patch_info)) {
4712 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
4713 //printf ("DIRECT: %s %s\n", method ? mono_method_full_name (method, TRUE) : "", mono_method_full_name (callee_cfg->method, TRUE));
4715 direct_call_target = callee_cfg->asm_symbol;
4716 patch_info->type = MONO_PATCH_INFO_NONE;
4717 acfg->stats.direct_calls ++;
4720 acfg->stats.all_calls ++;
4721 } else if (patch_info->type == MONO_PATCH_INFO_ICALL_ADDR) {
4722 if (!got_only && is_direct_callable (acfg, method, patch_info)) {
4723 if (!(patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
4724 direct_pinvoke = mono_lookup_icall_symbol (patch_info->data.method);
4726 direct_pinvoke = get_pinvoke_import (acfg, patch_info->data.method);
4727 if (direct_pinvoke) {
4729 g_assert (strlen (direct_pinvoke) < 1000);
4730 direct_call_target = g_strdup_printf ("%s%s", acfg->user_symbol_prefix, direct_pinvoke);
4733 } else if (patch_info->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
4734 const char *sym = mono_lookup_jit_icall_symbol (patch_info->data.name);
4735 if (!got_only && sym && acfg->aot_opts.direct_icalls) {
4736 /* Call to a C function implementing a jit icall */
4738 external_call = TRUE;
4739 g_assert (strlen (sym) < 1000);
4740 direct_call_target = g_strdup_printf ("%s%s", acfg->user_symbol_prefix, sym);
4742 } else if (patch_info->type == MONO_PATCH_INFO_INTERNAL_METHOD) {
4743 MonoJitICallInfo *info = mono_find_jit_icall_by_name (patch_info->data.name);
4744 const char *sym = mono_lookup_jit_icall_symbol (patch_info->data.name);
4745 if (!got_only && sym && acfg->aot_opts.direct_icalls && info->func == info->wrapper) {
4746 /* Call to a jit icall without a wrapper */
4748 external_call = TRUE;
4749 g_assert (strlen (sym) < 1000);
4750 direct_call_target = g_strdup_printf ("%s%s", acfg->user_symbol_prefix, sym);
4755 patch_info->type = MONO_PATCH_INFO_NONE;
4756 acfg->stats.direct_calls ++;
4759 if (!got_only && !direct_call) {
4760 MonoPltEntry *plt_entry = get_plt_entry (acfg, patch_info);
4762 /* This patch has a PLT entry, so we must emit a call to the PLT entry */
4764 direct_call_target = plt_entry->symbol;
4766 /* Nullify the patch */
4767 patch_info->type = MONO_PATCH_INFO_NONE;
4768 plt_entry->jit_used = TRUE;
4775 arch_emit_direct_call (acfg, direct_call_target, external_call, FALSE, patch_info, &call_size);
4776 i += call_size - INST_LEN;
4780 got_slot = get_got_offset (acfg, patch_info);
4782 arch_emit_got_access (acfg, code + i, got_slot, &code_size);
4783 i += code_size - INST_LEN;
4789 #endif /* MONO_ARCH_AOT_SUPPORTED */
4792 /* Find next patch */
4794 for (pindex = start_index; pindex < patches->len; ++pindex) {
4795 patch_info = g_ptr_array_index (patches, pindex);
4796 if (patch_info->ip.i >= i)
4800 /* Try to emit multiple bytes at once */
4801 if (pindex < patches->len && patch_info->ip.i > i) {
4804 for (limit = i + INST_LEN; limit < patch_info->ip.i; limit += INST_LEN) {
4805 if (locs && locs [limit])
4809 emit_code_bytes (acfg, code + i, limit - i);
4810 i = limit - INST_LEN;
4812 emit_code_bytes (acfg, code + i, INST_LEN);
4823 * Return a modified version of S which only includes characters permissible in symbols.
4826 sanitize_symbol (MonoAotCompile *acfg, char *s)
4828 gboolean process = FALSE;
4837 for (i = 0; i < len; ++i)
4838 if (!(s [i] <= 0x7f && (isalnum (s [i]) || s [i] == '_')))
4843 gs = g_string_sized_new (len);
4844 for (i = 0; i < len; ++i) {
4846 if (c <= 0x7f && (isalnum (c) || c == '_')) {
4847 g_string_append_c (gs, c);
4848 } else if (c > 0x7f) {
4849 /* multi-byte utf8 */
4850 g_string_append_printf (gs, "_0x%x", c);
4853 while (c >> 6 == 0x2) {
4854 g_string_append_printf (gs, "%x", c);
4858 g_string_append_printf (gs, "_");
4861 g_string_append_c (gs, '_');
4865 res = mono_mempool_strdup (acfg->mempool, gs->str);
4866 g_string_free (gs, TRUE);
4871 get_debug_sym (MonoMethod *method, const char *prefix, GHashTable *cache)
4873 char *name1, *name2, *cached;
4874 int i, j, len, count;
4876 name1 = mono_method_full_name (method, TRUE);
4879 // This is so that we don't accidentally create a local symbol (which starts with 'L')
4880 if ((!prefix || !*prefix) && name1 [0] == 'L')
4884 len = strlen (name1);
4885 name2 = malloc (strlen (prefix) + len + 16);
4886 memcpy (name2, prefix, strlen (prefix));
4887 j = strlen (prefix);
4888 for (i = 0; i < len; ++i) {
4889 if (isalnum (name1 [i])) {
4890 name2 [j ++] = name1 [i];
4891 } else if (name1 [i] == ' ' && name1 [i + 1] == '(' && name1 [i + 2] == ')') {
4893 } else if (name1 [i] == ',' && name1 [i + 1] == ' ') {
4896 } else if (name1 [i] == '(' || name1 [i] == ')' || name1 [i] == '>') {
4905 while (g_hash_table_lookup (cache, name2)) {
4906 sprintf (name2 + j, "_%d", count);
4910 cached = g_strdup (name2);
4911 g_hash_table_insert (cache, cached, cached);
4917 emit_method_code (MonoAotCompile *acfg, MonoCompile *cfg)
4922 char *debug_sym = NULL;
4923 char *symbol = NULL;
4924 int func_alignment = AOT_FUNC_ALIGNMENT;
4925 MonoMethodHeader *header;
4928 method = cfg->orig_method;
4929 code = cfg->native_code;
4930 header = cfg->header;
4932 method_index = get_method_index (acfg, method);
4933 symbol = g_strdup_printf ("%sme_%x", acfg->temp_prefix, method_index);
4936 /* Make the labels local */
4937 emit_section_change (acfg, ".text", 0);
4938 emit_alignment (acfg, func_alignment);
4940 if (acfg->global_symbols && acfg->need_no_dead_strip)
4941 fprintf (acfg->fp, " .no_dead_strip %s\n", cfg->asm_symbol);
4943 emit_label (acfg, cfg->asm_symbol);
4945 if (acfg->aot_opts.write_symbols && !acfg->global_symbols) {
4947 * Write a C style symbol for every method, this has two uses:
4948 * - it works on platforms where the dwarf debugging info is not
4950 * - it allows the setting of breakpoints of aot-ed methods.
4952 debug_sym = get_debug_sym (method, "", acfg->method_label_hash);
4954 if (acfg->need_no_dead_strip)
4955 fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym);
4956 emit_local_symbol (acfg, debug_sym, symbol, TRUE);
4957 emit_label (acfg, debug_sym);
4960 export_name = g_hash_table_lookup (acfg->export_names, method);
4962 /* Emit a global symbol for the method */
4963 emit_global_inner (acfg, export_name, TRUE);
4964 emit_label (acfg, export_name);
4967 if (cfg->verbose_level > 0)
4968 g_print ("Method %s emitted as %s\n", mono_method_full_name (method, TRUE), cfg->asm_symbol);
4970 acfg->stats.code_size += cfg->code_len;
4972 acfg->cfgs [method_index]->got_offset = acfg->got_offset;
4974 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 ()));
4978 if (acfg->aot_opts.write_symbols) {
4979 emit_symbol_size (acfg, debug_sym, ".");
4983 emit_label (acfg, symbol);
4990 * Encode PATCH_INFO into its disk representation.
4993 encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info, guint8 *buf, guint8 **endbuf)
4997 switch (patch_info->type) {
4998 case MONO_PATCH_INFO_NONE:
5000 case MONO_PATCH_INFO_IMAGE:
5001 encode_value (get_image_index (acfg, patch_info->data.image), p, &p);
5003 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
5004 case MONO_PATCH_INFO_JIT_TLS_ID:
5005 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
5007 case MONO_PATCH_INFO_CASTCLASS_CACHE:
5008 encode_value (patch_info->data.index, p, &p);
5010 case MONO_PATCH_INFO_METHOD_REL:
5011 encode_value ((gint)patch_info->data.offset, p, &p);
5013 case MONO_PATCH_INFO_SWITCH: {
5014 gpointer *table = (gpointer *)patch_info->data.table->table;
5017 encode_value (patch_info->data.table->table_size, p, &p);
5018 for (k = 0; k < patch_info->data.table->table_size; k++)
5019 encode_value ((int)(gssize)table [k], p, &p);
5022 case MONO_PATCH_INFO_METHODCONST:
5023 case MONO_PATCH_INFO_METHOD:
5024 case MONO_PATCH_INFO_METHOD_JUMP:
5025 case MONO_PATCH_INFO_ICALL_ADDR:
5026 case MONO_PATCH_INFO_METHOD_RGCTX:
5027 case MONO_PATCH_INFO_METHOD_CODE_SLOT:
5028 encode_method_ref (acfg, patch_info->data.method, p, &p);
5030 case MONO_PATCH_INFO_INTERNAL_METHOD:
5031 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
5032 guint32 len = strlen (patch_info->data.name);
5034 encode_value (len, p, &p);
5036 memcpy (p, patch_info->data.name, len);
5041 case MONO_PATCH_INFO_LDSTR: {
5042 guint32 image_index = get_image_index (acfg, patch_info->data.token->image);
5043 guint32 token = patch_info->data.token->token;
5044 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_STRING);
5045 encode_value (image_index, p, &p);
5046 encode_value (patch_info->data.token->token - MONO_TOKEN_STRING, p, &p);
5049 case MONO_PATCH_INFO_RVA:
5050 case MONO_PATCH_INFO_DECLSEC:
5051 case MONO_PATCH_INFO_LDTOKEN:
5052 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
5053 encode_value (get_image_index (acfg, patch_info->data.token->image), p, &p);
5054 encode_value (patch_info->data.token->token, p, &p);
5055 encode_value (patch_info->data.token->has_context, p, &p);
5056 if (patch_info->data.token->has_context)
5057 encode_generic_context (acfg, &patch_info->data.token->context, p, &p);
5059 case MONO_PATCH_INFO_EXC_NAME: {
5060 MonoClass *ex_class;
5063 mono_class_from_name (mono_defaults.exception_class->image,
5064 "System", patch_info->data.target);
5065 g_assert (ex_class);
5066 encode_klass_ref (acfg, ex_class, p, &p);
5069 case MONO_PATCH_INFO_R4:
5070 encode_value (*((guint32 *)patch_info->data.target), p, &p);
5072 case MONO_PATCH_INFO_R8:
5073 encode_value (((guint32 *)patch_info->data.target) [MINI_LS_WORD_IDX], p, &p);
5074 encode_value (((guint32 *)patch_info->data.target) [MINI_MS_WORD_IDX], p, &p);
5076 case MONO_PATCH_INFO_VTABLE:
5077 case MONO_PATCH_INFO_CLASS:
5078 case MONO_PATCH_INFO_IID:
5079 case MONO_PATCH_INFO_ADJUSTED_IID:
5080 case MONO_PATCH_INFO_CLASS_INIT:
5081 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
5083 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
5084 encode_klass_ref (acfg, patch_info->data.del_tramp->klass, p, &p);
5085 if (patch_info->data.del_tramp->method) {
5086 encode_value (1, p, &p);
5087 encode_method_ref (acfg, patch_info->data.del_tramp->method, p, &p);
5089 encode_value (0, p, &p);
5091 encode_value (patch_info->data.del_tramp->virtual, p, &p);
5093 case MONO_PATCH_INFO_FIELD:
5094 case MONO_PATCH_INFO_SFLDA:
5095 encode_field_info (acfg, patch_info->data.field, p, &p);
5097 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
5099 case MONO_PATCH_INFO_RGCTX_FETCH: {
5100 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
5105 * entry->method has a lenghtly encoding and multiple rgctx_fetch entries
5106 * reference the same method, so encode the method only once.
5108 offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_blob_hash, entry->method));
5110 buf2 = g_malloc (1024);
5113 encode_method_ref (acfg, entry->method, p2, &p2);
5114 g_assert (p2 - buf2 < 1024);
5116 offset = add_to_blob (acfg, buf2, p2 - buf2);
5119 g_hash_table_insert (acfg->method_blob_hash, entry->method, GUINT_TO_POINTER (offset + 1));
5124 encode_value (offset, p, &p);
5125 g_assert ((int)entry->info_type < 256);
5126 g_assert (entry->data->type < 256);
5127 encode_value ((entry->in_mrgctx ? 1 : 0) | (entry->info_type << 1) | (entry->data->type << 9), p, &p);
5128 encode_patch (acfg, entry->data, p, &p);
5131 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
5132 case MONO_PATCH_INFO_MONITOR_ENTER:
5133 case MONO_PATCH_INFO_MONITOR_EXIT:
5134 case MONO_PATCH_INFO_SEQ_POINT_INFO:
5136 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
5137 encode_method_ref (acfg, patch_info->data.imt_tramp->method, p, &p);
5138 encode_value (patch_info->data.imt_tramp->vt_offset, p, &p);
5140 case MONO_PATCH_INFO_SIGNATURE:
5141 encode_signature (acfg, (MonoMethodSignature*)patch_info->data.target, p, &p);
5143 case MONO_PATCH_INFO_TLS_OFFSET:
5144 encode_value (GPOINTER_TO_INT (patch_info->data.target), p, &p);
5146 case MONO_PATCH_INFO_GSHAREDVT_CALL:
5147 encode_signature (acfg, (MonoMethodSignature*)patch_info->data.gsharedvt->sig, p, &p);
5148 encode_method_ref (acfg, patch_info->data.gsharedvt->method, p, &p);
5150 case MONO_PATCH_INFO_GSHAREDVT_METHOD: {
5151 MonoGSharedVtMethodInfo *info = patch_info->data.gsharedvt_method;
5154 encode_method_ref (acfg, info->method, p, &p);
5155 encode_value (info->num_entries, p, &p);
5156 for (i = 0; i < info->num_entries; ++i) {
5157 MonoRuntimeGenericContextInfoTemplate *template = &info->entries [i];
5159 encode_value (template->info_type, p, &p);
5160 switch (mini_rgctx_info_type_to_patch_info_type (template->info_type)) {
5161 case MONO_PATCH_INFO_CLASS:
5162 encode_klass_ref (acfg, mono_class_from_mono_type (template->data), p, &p);
5164 case MONO_PATCH_INFO_FIELD:
5165 encode_field_info (acfg, template->data, p, &p);
5168 g_assert_not_reached ();
5175 g_warning ("unable to handle jump info %d", patch_info->type);
5176 g_assert_not_reached ();
5183 encode_patch_list (MonoAotCompile *acfg, GPtrArray *patches, int n_patches, int first_got_offset, guint8 *buf, guint8 **endbuf)
5186 guint32 pindex, offset;
5187 MonoJumpInfo *patch_info;
5189 encode_value (n_patches, p, &p);
5191 for (pindex = 0; pindex < patches->len; ++pindex) {
5192 patch_info = g_ptr_array_index (patches, pindex);
5194 if (patch_info->type == MONO_PATCH_INFO_NONE || patch_info->type == MONO_PATCH_INFO_BB)
5198 offset = get_got_offset (acfg, patch_info);
5199 encode_value (offset, p, &p);
5206 emit_method_info (MonoAotCompile *acfg, MonoCompile *cfg)
5210 int pindex, buf_size, n_patches;
5212 MonoJumpInfo *patch_info;
5213 MonoMethodHeader *header;
5214 guint32 method_index;
5216 guint32 first_got_offset;
5218 method = cfg->orig_method;
5219 header = mono_method_get_header (method);
5221 method_index = get_method_index (acfg, method);
5223 /* Sort relocations */
5224 patches = g_ptr_array_new ();
5225 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next)
5226 g_ptr_array_add (patches, patch_info);
5227 g_ptr_array_sort (patches, compare_patches);
5229 first_got_offset = acfg->cfgs [method_index]->got_offset;
5231 /**********************/
5232 /* Encode method info */
5233 /**********************/
5235 buf_size = (patches->len < 1000) ? 40960 : 40960 + (patches->len * 64);
5236 p = buf = g_malloc (buf_size);
5238 if (mono_class_get_cctor (method->klass))
5239 encode_klass_ref (acfg, method->klass, p, &p);
5241 /* Not needed when loading the method */
5242 encode_value (0, p, &p);
5245 if (cfg->opt & MONO_OPT_SHARED) {
5246 encode_value (g_list_length (cfg->ldstr_list), p, &p);
5247 for (l = cfg->ldstr_list; l; l = l->next) {
5248 encode_value ((long)l->data, p, &p);
5252 /* Used only in shared mode */
5253 g_assert (!cfg->ldstr_list);
5256 for (pindex = 0; pindex < patches->len; ++pindex) {
5257 patch_info = g_ptr_array_index (patches, pindex);
5259 if ((patch_info->type == MONO_PATCH_INFO_GOT_OFFSET) ||
5260 (patch_info->type == MONO_PATCH_INFO_NONE)) {
5261 patch_info->type = MONO_PATCH_INFO_NONE;
5266 if ((patch_info->type == MONO_PATCH_INFO_IMAGE) && (patch_info->data.image == acfg->image)) {
5267 /* Stored in a GOT slot initialized at module load time */
5268 patch_info->type = MONO_PATCH_INFO_NONE;
5272 if (patch_info->type == MONO_PATCH_INFO_GC_CARD_TABLE_ADDR) {
5273 /* Stored in a GOT slot initialized at module load time */
5274 patch_info->type = MONO_PATCH_INFO_NONE;
5278 if (is_plt_patch (patch_info)) {
5279 /* Calls are made through the PLT */
5280 patch_info->type = MONO_PATCH_INFO_NONE;
5288 g_assert (cfg->has_got_slots);
5290 encode_patch_list (acfg, patches, n_patches, first_got_offset, p, &p);
5292 acfg->stats.info_size += p - buf;
5294 g_assert (p - buf < buf_size);
5296 cfg->method_info_offset = add_to_blob (acfg, buf, p - buf);
5301 get_unwind_info_offset (MonoAotCompile *acfg, guint8 *encoded, guint32 encoded_len)
5303 guint32 cache_index;
5306 /* Reuse the unwind module to canonize and store unwind info entries */
5307 cache_index = mono_cache_unwind_info (encoded, encoded_len);
5309 /* Use +/- 1 to distinguish 0s from missing entries */
5310 offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1)));
5318 * It would be easier to use assembler symbols, but the caller needs an
5321 offset = acfg->unwind_info_offset;
5322 g_hash_table_insert (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1), GUINT_TO_POINTER (offset + 1));
5323 g_ptr_array_add (acfg->unwind_ops, GUINT_TO_POINTER (cache_index));
5326 encode_value (encoded_len, p, &p);
5328 acfg->unwind_info_offset += encoded_len + (p - buf);
5334 emit_exception_debug_info (MonoAotCompile *acfg, MonoCompile *cfg)
5337 int i, k, buf_size, method_index;
5338 guint32 debug_info_size, seq_points_size;
5340 MonoMethodHeader *header;
5341 guint8 *p, *buf, *debug_info;
5342 MonoJitInfo *jinfo = cfg->jit_info;
5344 gboolean use_unwind_ops = FALSE;
5345 MonoSeqPointInfo *seq_points;
5347 method = cfg->orig_method;
5348 code = cfg->native_code;
5349 header = cfg->header;
5351 method_index = get_method_index (acfg, method);
5353 if (!acfg->aot_opts.nodebug) {
5354 mono_debug_serialize_debug_info (cfg, &debug_info, &debug_info_size);
5357 debug_info_size = 0;
5360 seq_points = cfg->seq_point_info;
5362 seq_points_size = seq_point_info_get_write_size (seq_points);
5364 buf_size = header->num_clauses * 256 + debug_info_size + 2048 + seq_points_size + cfg->gc_map_size;
5365 p = buf = g_malloc (buf_size);
5367 use_unwind_ops = cfg->unwind_ops != NULL;
5369 flags = (jinfo->has_generic_jit_info ? 1 : 0) | (use_unwind_ops ? 2 : 0) | (header->num_clauses ? 4 : 0) | (seq_points ? 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);
5371 encode_value (flags, p, &p);
5373 if (use_unwind_ops) {
5374 guint32 encoded_len;
5376 guint32 unwind_desc;
5378 encoded = mono_unwind_ops_encode (cfg->unwind_ops, &encoded_len);
5380 unwind_desc = get_unwind_info_offset (acfg, encoded, encoded_len);
5381 encode_value (unwind_desc, p, &p);
5383 encode_value (jinfo->unwind_info, p, &p);
5386 /*Encode the number of holes before the number of clauses to make decoding easier*/
5387 if (jinfo->has_try_block_holes) {
5388 MonoTryBlockHoleTableJitInfo *table = mono_jit_info_get_try_block_hole_table_info (jinfo);
5389 encode_value (table->num_holes, p, &p);
5392 /* Exception table */
5393 if (cfg->compile_llvm) {
5395 * When using LLVM, we can't emit some data, like pc offsets, this reg/offset etc.,
5396 * since the information is only available to llc. Instead, we let llc save the data
5397 * into the LSDA, and read it from there at runtime.
5399 /* The assembly might be CIL stripped so emit the data ourselves */
5400 if (header->num_clauses)
5401 encode_value (header->num_clauses, p, &p);
5403 for (k = 0; k < header->num_clauses; ++k) {
5404 MonoExceptionClause *clause;
5406 clause = &header->clauses [k];
5408 encode_value (clause->flags, p, &p);
5409 if (clause->data.catch_class) {
5410 encode_value (1, p, &p);
5411 encode_klass_ref (acfg, clause->data.catch_class, p, &p);
5413 encode_value (0, p, &p);
5416 /* Emit a list of nesting clauses */
5417 for (i = 0; i < header->num_clauses; ++i) {
5419 MonoExceptionClause *clause1 = &header->clauses [cindex1];
5421 MonoExceptionClause *clause2 = &header->clauses [cindex2];
5423 if (cindex1 != cindex2 && clause1->try_offset >= clause2->try_offset && clause1->handler_offset <= clause2->handler_offset)
5424 encode_value (i, p, &p);
5426 encode_value (-1, p, &p);
5429 if (jinfo->num_clauses)
5430 encode_value (jinfo->num_clauses, p, &p);
5432 for (k = 0; k < jinfo->num_clauses; ++k) {
5433 MonoJitExceptionInfo *ei = &jinfo->clauses [k];
5435 encode_value (ei->flags, p, &p);
5436 encode_value (ei->exvar_offset, p, &p);
5438 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
5439 encode_value ((gint)((guint8*)ei->data.filter - code), p, &p);
5441 if (ei->data.catch_class) {
5445 buf2 = g_malloc (4096);
5447 encode_klass_ref (acfg, ei->data.catch_class, p2, &p2);
5449 g_assert (len < 4096);
5450 encode_value (len, p, &p);
5451 memcpy (p, buf2, len);
5455 encode_value (0, p, &p);
5459 encode_value ((gint)((guint8*)ei->try_start - code), p, &p);
5460 encode_value ((gint)((guint8*)ei->try_end - code), p, &p);
5461 encode_value ((gint)((guint8*)ei->handler_start - code), p, &p);
5465 if (jinfo->has_try_block_holes) {
5466 MonoTryBlockHoleTableJitInfo *table = mono_jit_info_get_try_block_hole_table_info (jinfo);
5467 for (i = 0; i < table->num_holes; ++i) {
5468 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
5469 encode_value (hole->clause, p, &p);
5470 encode_value (hole->length, p, &p);
5471 encode_value (hole->offset, p, &p);
5475 if (jinfo->has_arch_eh_info) {
5476 MonoArchEHJitInfo *eh_info;
5478 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
5479 encode_value (eh_info->stack_size, p, &p);
5480 encode_value (eh_info->epilog_size, p, &p);
5483 if (jinfo->has_generic_jit_info) {
5484 MonoGenericJitInfo *gi = mono_jit_info_get_generic_jit_info (jinfo);
5485 MonoGenericSharingContext* gsctx = gi->generic_sharing_context;
5491 encode_value (gi->nlocs, p, &p);
5493 for (i = 0; i < gi->nlocs; ++i) {
5494 MonoDwarfLocListEntry *entry = &gi->locations [i];
5496 encode_value (entry->is_reg ? 1 : 0, p, &p);
5497 encode_value (entry->reg, p, &p);
5499 encode_value (entry->offset, p, &p);
5501 g_assert (entry->from == 0);
5503 encode_value (entry->from, p, &p);
5504 encode_value (entry->to, p, &p);
5507 if (!cfg->compile_llvm) {
5508 encode_value (gi->has_this ? 1 : 0, p, &p);
5509 encode_value (gi->this_reg, p, &p);
5510 encode_value (gi->this_offset, p, &p);
5515 * Need to encode jinfo->method too, since it is not equal to 'method'
5516 * when using generic sharing.
5518 buf2 = g_malloc (4096);
5520 encode_method_ref (acfg, jinfo->d.method, p2, &p2);
5522 g_assert (len < 4096);
5523 encode_value (len, p, &p);
5524 memcpy (p, buf2, len);
5528 if (gsctx && (gsctx->var_is_vt || gsctx->mvar_is_vt)) {
5529 MonoMethodInflated *inflated;
5530 MonoGenericContext *context;
5531 MonoGenericInst *inst;
5533 g_assert (jinfo->d.method->is_inflated);
5534 inflated = (MonoMethodInflated*)jinfo->d.method;
5535 context = &inflated->context;
5537 encode_value (1, p, &p);
5538 if (context->class_inst) {
5539 inst = context->class_inst;
5541 encode_value (inst->type_argc, p, &p);
5542 for (i = 0; i < inst->type_argc; ++i)
5543 encode_value (gsctx->var_is_vt [i], p, &p);
5545 encode_value (0, p, &p);
5547 if (context->method_inst) {
5548 inst = context->method_inst;
5550 encode_value (inst->type_argc, p, &p);
5551 for (i = 0; i < inst->type_argc; ++i)
5552 encode_value (gsctx->mvar_is_vt [i], p, &p);
5554 encode_value (0, p, &p);
5557 encode_value (0, p, &p);
5562 p += seq_point_info_write (seq_points, p);
5564 g_assert (debug_info_size < buf_size);
5566 encode_value (debug_info_size, p, &p);
5567 if (debug_info_size) {
5568 memcpy (p, debug_info, debug_info_size);
5569 p += debug_info_size;
5570 g_free (debug_info);
5575 encode_value (cfg->gc_map_size, p, &p);
5576 /* The GC map requires 4 bytes of alignment */
5577 while ((gsize)p % 4)
5579 memcpy (p, cfg->gc_map, cfg->gc_map_size);
5580 p += cfg->gc_map_size;
5583 acfg->stats.ex_info_size += p - buf;
5585 g_assert (p - buf < buf_size);
5588 /* The GC Map requires 4 byte alignment */
5589 cfg->ex_info_offset = add_to_blob_aligned (acfg, buf, p - buf, cfg->gc_map ? 4 : 1);
5594 emit_klass_info (MonoAotCompile *acfg, guint32 token)
5597 MonoClass *klass = mono_class_get_checked (acfg->image, token, &error);
5599 int i, buf_size, res;
5600 gboolean no_special_static, cant_encode;
5601 gpointer iter = NULL;
5604 mono_error_cleanup (&error);
5608 p = buf = g_malloc (buf_size);
5610 /* Mark as unusable */
5611 encode_value (-1, p, &p);
5613 res = add_to_blob (acfg, buf, p - buf);
5619 buf_size = 10240 + (klass->vtable_size * 16);
5620 p = buf = g_malloc (buf_size);
5624 mono_class_init (klass);
5626 mono_class_get_nested_types (klass, &iter);
5627 g_assert (klass->nested_classes_inited);
5629 mono_class_setup_vtable (klass);
5632 * Emit all the information which is required for creating vtables so
5633 * the runtime does not need to create the MonoMethod structures which
5634 * take up a lot of space.
5637 no_special_static = !mono_class_has_special_static_fields (klass);
5639 /* Check whenever we have enough info to encode the vtable */
5640 cant_encode = FALSE;
5641 for (i = 0; i < klass->vtable_size; ++i) {
5642 MonoMethod *cm = klass->vtable [i];
5644 if (cm && mono_method_signature (cm)->is_inflated && !g_hash_table_lookup (acfg->token_info_hash, cm))
5648 mono_class_has_finalizer (klass);
5650 if (klass->generic_container || cant_encode) {
5651 encode_value (-1, p, &p);
5653 encode_value (klass->vtable_size, p, &p);
5654 encode_value ((klass->generic_container ? (1 << 8) : 0) | (no_special_static << 7) | (klass->has_static_refs << 6) | (klass->has_references << 5) | ((klass->blittable << 4) | ((klass->ext && klass->ext->nested_classes) ? 1 : 0) << 3) | (klass->has_cctor << 2) | (klass->has_finalize << 1) | klass->ghcimpl, p, &p);
5655 if (klass->has_cctor)
5656 encode_method_ref (acfg, mono_class_get_cctor (klass), p, &p);
5657 if (klass->has_finalize)
5658 encode_method_ref (acfg, mono_class_get_finalizer (klass), p, &p);
5660 encode_value (klass->instance_size, p, &p);
5661 encode_value (mono_class_data_size (klass), p, &p);
5662 encode_value (klass->packing_size, p, &p);
5663 encode_value (klass->min_align, p, &p);
5665 for (i = 0; i < klass->vtable_size; ++i) {
5666 MonoMethod *cm = klass->vtable [i];
5669 encode_method_ref (acfg, cm, p, &p);
5671 encode_value (0, p, &p);
5675 acfg->stats.class_info_size += p - buf;
5677 g_assert (p - buf < buf_size);
5678 res = add_to_blob (acfg, buf, p - buf);
5685 get_plt_entry_debug_sym (MonoAotCompile *acfg, MonoJumpInfo *ji, GHashTable *cache)
5687 char *debug_sym = NULL;
5691 case MONO_PATCH_INFO_METHOD:
5692 debug_sym = get_debug_sym (ji->data.method, "plt_", cache);
5694 case MONO_PATCH_INFO_INTERNAL_METHOD:
5695 debug_sym = g_strdup_printf ("plt__jit_icall_%s", ji->data.name);
5697 case MONO_PATCH_INFO_CLASS_INIT:
5698 s = mono_type_get_name (&ji->data.klass->byval_arg);
5699 debug_sym = g_strdup_printf ("plt__class_init_%s", s);
5702 case MONO_PATCH_INFO_RGCTX_FETCH:
5703 debug_sym = g_strdup_printf ("plt__rgctx_fetch_%d", acfg->label_generator ++);
5705 case MONO_PATCH_INFO_ICALL_ADDR: {
5706 char *s = get_debug_sym (ji->data.method, "", cache);
5708 debug_sym = g_strdup_printf ("plt__icall_native_%s", s);
5712 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
5713 debug_sym = g_strdup_printf ("plt__jit_icall_native_%s", ji->data.name);
5715 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
5716 debug_sym = g_strdup_printf ("plt__generic_class_init");
5722 return sanitize_symbol (acfg, debug_sym);
5726 * Calls made from AOTed code are routed through a table of jumps similar to the
5727 * ELF PLT (Program Linkage Table). Initially the PLT entries jump to code which transfers
5728 * control to the AOT runtime through a trampoline.
5731 emit_plt (MonoAotCompile *acfg)
5737 sprintf (symbol, "plt");
5739 emit_section_change (acfg, ".text", 0);
5740 emit_alignment (acfg, NACL_SIZE(16, kNaClAlignment));
5741 emit_label (acfg, symbol);
5742 emit_label (acfg, acfg->plt_symbol);
5744 for (i = 0; i < acfg->plt_offset; ++i) {
5745 char *debug_sym = NULL;
5746 MonoPltEntry *plt_entry = NULL;
5751 * The first plt entry is unused.
5755 plt_entry = g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
5758 debug_sym = plt_entry->debug_sym;
5760 if (acfg->thumb_mixed && !plt_entry->jit_used)
5761 /* Emit only a thumb version */
5764 /* Skip plt entries not actually called */
5765 if (!plt_entry->jit_used && !plt_entry->llvm_used)
5768 if (acfg->llvm && !acfg->thumb_mixed)
5769 emit_label (acfg, plt_entry->llvm_symbol);
5772 if (acfg->need_no_dead_strip) {
5773 emit_unset_mode (acfg);
5774 fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym);
5776 emit_local_symbol (acfg, debug_sym, NULL, TRUE);
5777 emit_label (acfg, debug_sym);
5780 emit_label (acfg, plt_entry->symbol);
5782 arch_emit_plt_entry (acfg, i);
5785 emit_symbol_size (acfg, debug_sym, ".");
5788 if (acfg->thumb_mixed) {
5789 /* Make sure the ARM symbols don't alias the thumb ones */
5790 emit_zero_bytes (acfg, 16);
5793 * Emit a separate set of PLT entries using thumb2 which is called by LLVM generated
5796 for (i = 0; i < acfg->plt_offset; ++i) {
5797 char *debug_sym = NULL;
5798 MonoPltEntry *plt_entry = NULL;
5804 plt_entry = g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
5807 /* Skip plt entries not actually called by LLVM code */
5808 if (!plt_entry->llvm_used)
5811 if (acfg->aot_opts.write_symbols) {
5812 if (plt_entry->debug_sym)
5813 debug_sym = g_strdup_printf ("%s_thumb", plt_entry->debug_sym);
5817 #if defined(TARGET_MACH)
5818 fprintf (acfg->fp, " .thumb_func %s\n", debug_sym);
5819 fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym);
5821 emit_local_symbol (acfg, debug_sym, NULL, TRUE);
5822 emit_label (acfg, debug_sym);
5824 fprintf (acfg->fp, "\n.thumb_func\n");
5826 emit_label (acfg, plt_entry->llvm_symbol);
5828 arch_emit_llvm_plt_entry (acfg, i);
5831 emit_symbol_size (acfg, debug_sym, ".");
5837 emit_symbol_size (acfg, acfg->plt_symbol, ".");
5839 sprintf (symbol, "plt_end");
5840 emit_label (acfg, symbol);
5844 * emit_trampoline_full:
5846 * If EMIT_TINFO is TRUE, emit additional information which can be used to create a MonoJitInfo for this trampoline by
5847 * create_jit_info_for_trampoline ().
5849 static G_GNUC_UNUSED void
5850 emit_trampoline_full (MonoAotCompile *acfg, int got_offset, MonoTrampInfo *info, gboolean emit_tinfo)
5852 char start_symbol [256];
5853 char end_symbol [256];
5855 guint32 buf_size, info_offset;
5856 MonoJumpInfo *patch_info;
5869 code_size = info->code_size;
5871 unwind_ops = info->unwind_ops;
5873 #ifdef __native_client_codegen__
5874 mono_nacl_fix_patches (code, ji);
5879 sprintf (start_symbol, "%s%s", acfg->user_symbol_prefix, name);
5881 emit_section_change (acfg, ".text", 0);
5882 emit_global (acfg, start_symbol, TRUE);
5883 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
5884 emit_label (acfg, start_symbol);
5886 sprintf (symbol, "%snamed_%s", acfg->temp_prefix, name);
5887 emit_label (acfg, symbol);
5890 * The code should access everything through the GOT, so we pass
5893 emit_and_reloc_code (acfg, NULL, code, code_size, ji, TRUE, NULL);
5895 emit_symbol_size (acfg, start_symbol, ".");
5898 sprintf (end_symbol, "%snamede_%s", acfg->temp_prefix, name);
5899 emit_label (acfg, end_symbol);
5904 /* Sort relocations */
5905 patches = g_ptr_array_new ();
5906 for (patch_info = ji; patch_info; patch_info = patch_info->next)
5907 if (patch_info->type != MONO_PATCH_INFO_NONE)
5908 g_ptr_array_add (patches, patch_info);
5909 g_ptr_array_sort (patches, compare_patches);
5911 buf_size = patches->len * 128 + 128;
5912 buf = g_malloc (buf_size);
5915 encode_patch_list (acfg, patches, patches->len, got_offset, p, &p);
5916 g_assert (p - buf < buf_size);
5918 sprintf (symbol, "%s%s_p", acfg->user_symbol_prefix, name);
5920 info_offset = add_to_blob (acfg, buf, p - buf);
5922 emit_section_change (acfg, RODATA_SECT, 0);
5923 emit_global (acfg, symbol, FALSE);
5924 emit_label (acfg, symbol);
5926 emit_int32 (acfg, info_offset);
5930 guint32 encoded_len;
5934 * Emit additional information which can be used to reconstruct a partial MonoTrampInfo.
5936 encoded = mono_unwind_ops_encode (info->unwind_ops, &encoded_len);
5937 uw_offset = get_unwind_info_offset (acfg, encoded, encoded_len);
5940 emit_symbol_diff (acfg, end_symbol, start_symbol, 0);
5941 emit_int32 (acfg, uw_offset);
5944 /* Emit debug info */
5948 sprintf (symbol, "%s", name);
5949 sprintf (symbol2, "%snamed_%s", acfg->temp_prefix, name);
5952 mono_dwarf_writer_emit_trampoline (acfg->dwarf, symbol, symbol2, NULL, NULL, code_size, unwind_ops);
5956 static G_GNUC_UNUSED void
5957 emit_trampoline (MonoAotCompile *acfg, int got_offset, MonoTrampInfo *info)
5959 emit_trampoline_full (acfg, got_offset, info, FALSE);
5963 emit_trampolines (MonoAotCompile *acfg)
5966 char end_symbol [256];
5967 int i, tramp_got_offset;
5968 MonoAotTrampoline ntype;
5969 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
5973 if (!acfg->aot_opts.full_aot)
5976 g_assert (acfg->image->assembly);
5978 /* Currently, we emit most trampolines into the mscorlib AOT image. */
5979 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
5980 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
5981 MonoTrampInfo *info;
5984 * Emit the generic trampolines.
5986 * We could save some code by treating the generic trampolines as a wrapper
5987 * method, but that approach has its own complexities, so we choose the simpler
5990 for (tramp_type = 0; tramp_type < MONO_TRAMPOLINE_NUM; ++tramp_type) {
5991 /* we overload the boolean here to indicate the slightly different trampoline needed, see mono_arch_create_generic_trampoline() */
5992 #ifdef DISABLE_REMOTING
5993 if (tramp_type == MONO_TRAMPOLINE_GENERIC_VIRTUAL_REMOTING)
5996 #ifndef MONO_ARCH_HAVE_HANDLER_BLOCK_GUARD
5997 if (tramp_type == MONO_TRAMPOLINE_HANDLER_BLOCK_GUARD)
6000 mono_arch_create_generic_trampoline (tramp_type, &info, acfg->aot_opts.use_trampolines_page? 2: TRUE);
6001 emit_trampoline (acfg, acfg->got_offset, info);
6004 mono_arch_get_nullified_class_init_trampoline (&info);
6005 emit_trampoline (acfg, acfg->got_offset, info);
6006 #if defined(MONO_ARCH_MONITOR_OBJECT_REG)
6007 mono_arch_create_monitor_enter_trampoline (&info, TRUE);
6008 emit_trampoline (acfg, acfg->got_offset, info);
6009 mono_arch_create_monitor_exit_trampoline (&info, TRUE);
6010 emit_trampoline (acfg, acfg->got_offset, info);
6013 mono_arch_create_generic_class_init_trampoline (&info, TRUE);
6014 emit_trampoline (acfg, acfg->got_offset, info);
6016 /* Emit the exception related code pieces */
6017 mono_arch_get_restore_context (&info, TRUE);
6018 emit_trampoline (acfg, acfg->got_offset, info);
6019 mono_arch_get_call_filter (&info, TRUE);
6020 emit_trampoline (acfg, acfg->got_offset, info);
6021 mono_arch_get_throw_exception (&info, TRUE);
6022 emit_trampoline (acfg, acfg->got_offset, info);
6023 mono_arch_get_rethrow_exception (&info, TRUE);
6024 emit_trampoline (acfg, acfg->got_offset, info);
6025 mono_arch_get_throw_corlib_exception (&info, TRUE);
6026 emit_trampoline (acfg, acfg->got_offset, info);
6028 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
6029 mono_arch_get_gsharedvt_trampoline (&info, TRUE);
6031 emit_trampoline_full (acfg, acfg->got_offset, info, TRUE);
6033 /* Create a separate out trampoline for more information in stack traces */
6034 info->name = g_strdup ("gsharedvt_out_trampoline");
6035 emit_trampoline_full (acfg, acfg->got_offset, info, TRUE);
6039 #if defined(MONO_ARCH_HAVE_GET_TRAMPOLINES)
6041 GSList *l = mono_arch_get_trampolines (TRUE);
6044 MonoTrampInfo *info = l->data;
6046 emit_trampoline (acfg, acfg->got_offset, info);
6052 for (i = 0; i < acfg->aot_opts.nrgctx_fetch_trampolines; ++i) {
6055 offset = MONO_RGCTX_SLOT_MAKE_RGCTX (i);
6056 mono_arch_create_rgctx_lazy_fetch_trampoline (offset, &info, TRUE);
6057 emit_trampoline (acfg, acfg->got_offset, info);
6059 offset = MONO_RGCTX_SLOT_MAKE_MRGCTX (i);
6060 mono_arch_create_rgctx_lazy_fetch_trampoline (offset, &info, TRUE);
6061 emit_trampoline (acfg, acfg->got_offset, info);
6064 #ifdef MONO_ARCH_HAVE_GENERAL_RGCTX_LAZY_FETCH_TRAMPOLINE
6065 mono_arch_create_general_rgctx_lazy_fetch_trampoline (&info, TRUE);
6066 emit_trampoline (acfg, acfg->got_offset, info);
6072 /* delegate_invoke_impl trampolines */
6073 l = mono_arch_get_delegate_invoke_impls ();
6075 MonoTrampInfo *info = l->data;
6077 emit_trampoline (acfg, acfg->got_offset, info);
6082 #endif /* #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES */
6084 /* Emit trampolines which are numerous */
6087 * These include the following:
6088 * - specific trampolines
6089 * - static rgctx invoke trampolines
6091 * These trampolines have the same code, they are parameterized by GOT
6093 * They are defined in this file, in the arch_... routines instead of
6094 * in tramp-<ARCH>.c, since it is easier to do it this way.
6098 * When running in aot-only mode, we can't create specific trampolines at
6099 * runtime, so we create a few, and save them in the AOT file.
6100 * Normal trampolines embed their argument as a literal inside the
6101 * trampoline code, we can't do that here, so instead we embed an offset
6102 * which needs to be added to the trampoline address to get the address of
6103 * the GOT slot which contains the argument value.
6104 * The generated trampolines jump to the generic trampolines using another
6105 * GOT slot, which will be setup by the AOT loader to point to the
6106 * generic trampoline code of the given type.
6110 * FIXME: Maybe we should use more specific trampolines (i.e. one class init for
6114 emit_section_change (acfg, ".text", 0);
6116 tramp_got_offset = acfg->got_offset;
6118 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype) {
6120 case MONO_AOT_TRAMP_SPECIFIC:
6121 sprintf (symbol, "specific_trampolines");
6123 case MONO_AOT_TRAMP_STATIC_RGCTX:
6124 sprintf (symbol, "static_rgctx_trampolines");
6126 case MONO_AOT_TRAMP_IMT_THUNK:
6127 sprintf (symbol, "imt_thunks");
6129 case MONO_AOT_TRAMP_GSHAREDVT_ARG:
6130 sprintf (symbol, "gsharedvt_arg_trampolines");
6133 g_assert_not_reached ();
6136 sprintf (end_symbol, "%s_e", symbol);
6138 if (acfg->aot_opts.write_symbols)
6139 emit_local_symbol (acfg, symbol, end_symbol, TRUE);
6141 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
6142 emit_label (acfg, symbol);
6144 acfg->trampoline_got_offset_base [ntype] = tramp_got_offset;
6146 for (i = 0; i < acfg->num_trampolines [ntype]; ++i) {
6150 case MONO_AOT_TRAMP_SPECIFIC:
6151 arch_emit_specific_trampoline (acfg, tramp_got_offset, &tramp_size);
6152 tramp_got_offset += 2;
6154 case MONO_AOT_TRAMP_STATIC_RGCTX:
6155 arch_emit_static_rgctx_trampoline (acfg, tramp_got_offset, &tramp_size);
6156 tramp_got_offset += 2;
6158 case MONO_AOT_TRAMP_IMT_THUNK:
6159 arch_emit_imt_thunk (acfg, tramp_got_offset, &tramp_size);
6160 tramp_got_offset += 1;
6162 case MONO_AOT_TRAMP_GSHAREDVT_ARG:
6163 arch_emit_gsharedvt_arg_trampoline (acfg, tramp_got_offset, &tramp_size);
6164 tramp_got_offset += 2;
6167 g_assert_not_reached ();
6169 #ifdef __native_client_codegen__
6170 /* align to avoid 32-byte boundary crossings */
6171 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
6174 if (!acfg->trampoline_size [ntype]) {
6175 g_assert (tramp_size);
6176 acfg->trampoline_size [ntype] = tramp_size;
6180 emit_label (acfg, end_symbol);
6181 emit_int32 (acfg, 0);
6184 arch_emit_specific_trampoline_pages (acfg);
6186 /* Reserve some entries at the end of the GOT for our use */
6187 acfg->num_trampoline_got_entries = tramp_got_offset - acfg->got_offset;
6190 acfg->got_offset += acfg->num_trampoline_got_entries;
6194 str_begins_with (const char *str1, const char *str2)
6196 int len = strlen (str2);
6197 return strncmp (str1, str2, len) == 0;
6201 mono_aot_readonly_field_override (MonoClassField *field)
6204 for (rdv = readonly_values; rdv; rdv = rdv->next) {
6205 char *p = rdv->name;
6207 len = strlen (field->parent->name_space);
6208 if (strncmp (p, field->parent->name_space, len))
6213 len = strlen (field->parent->name);
6214 if (strncmp (p, field->parent->name, len))
6219 if (strcmp (p, field->name))
6221 switch (rdv->type) {
6223 return &rdv->value.i1;
6225 return &rdv->value.i2;
6227 return &rdv->value.i4;
6236 add_readonly_value (MonoAotOptions *opts, const char *val)
6241 /* the format of val is:
6242 * namespace.typename.fieldname=type/value
6243 * type can be i1 for uint8/int8/boolean, i2 for uint16/int16/char, i4 for uint32/int32
6245 fval = strrchr (val, '/');
6247 fprintf (stderr, "AOT : invalid format for readonly field '%s', missing /.\n", val);
6250 tval = strrchr (val, '=');
6252 fprintf (stderr, "AOT : invalid format for readonly field '%s', missing =.\n", val);
6255 rdv = g_new0 (ReadOnlyValue, 1);
6256 rdv->name = g_malloc0 (tval - val + 1);
6257 memcpy (rdv->name, val, tval - val);
6260 if (strncmp (tval, "i1", 2) == 0) {
6261 rdv->value.i1 = atoi (fval);
6262 rdv->type = MONO_TYPE_I1;
6263 } else if (strncmp (tval, "i2", 2) == 0) {
6264 rdv->value.i2 = atoi (fval);
6265 rdv->type = MONO_TYPE_I2;
6266 } else if (strncmp (tval, "i4", 2) == 0) {
6267 rdv->value.i4 = atoi (fval);
6268 rdv->type = MONO_TYPE_I4;
6270 fprintf (stderr, "AOT : unsupported type for readonly field '%s'.\n", tval);
6273 rdv->next = readonly_values;
6274 readonly_values = rdv;
6278 mono_aot_parse_options (const char *aot_options, MonoAotOptions *opts)
6280 gchar **args, **ptr;
6282 args = g_strsplit (aot_options ? aot_options : "", ",", -1);
6283 for (ptr = args; ptr && *ptr; ptr ++) {
6284 const char *arg = *ptr;
6286 if (str_begins_with (arg, "outfile=")) {
6287 opts->outfile = g_strdup (arg + strlen ("outfile="));
6288 } else if (str_begins_with (arg, "save-temps")) {
6289 opts->save_temps = TRUE;
6290 } else if (str_begins_with (arg, "keep-temps")) {
6291 opts->save_temps = TRUE;
6292 } else if (str_begins_with (arg, "write-symbols")) {
6293 opts->write_symbols = TRUE;
6294 } else if (str_begins_with (arg, "no-write-symbols")) {
6295 opts->write_symbols = FALSE;
6296 } else if (str_begins_with (arg, "metadata-only")) {
6297 opts->metadata_only = TRUE;
6298 } else if (str_begins_with (arg, "bind-to-runtime-version")) {
6299 opts->bind_to_runtime_version = TRUE;
6300 } else if (str_begins_with (arg, "full")) {
6301 opts->full_aot = TRUE;
6302 } else if (str_begins_with (arg, "threads=")) {
6303 opts->nthreads = atoi (arg + strlen ("threads="));
6304 } else if (str_begins_with (arg, "static")) {
6305 opts->static_link = TRUE;
6306 opts->no_dlsym = TRUE;
6307 } else if (str_begins_with (arg, "asmonly")) {
6308 opts->asm_only = TRUE;
6309 } else if (str_begins_with (arg, "asmwriter")) {
6310 opts->asm_writer = TRUE;
6311 } else if (str_begins_with (arg, "nodebug")) {
6312 opts->nodebug = TRUE;
6313 } else if (str_begins_with (arg, "dwarfdebug")) {
6314 opts->dwarf_debug = TRUE;
6315 } else if (str_begins_with (arg, "nopagetrampolines")) {
6316 opts->use_trampolines_page = FALSE;
6317 } else if (str_begins_with (arg, "ntrampolines=")) {
6318 opts->ntrampolines = atoi (arg + strlen ("ntrampolines="));
6319 } else if (str_begins_with (arg, "nrgctx-trampolines=")) {
6320 opts->nrgctx_trampolines = atoi (arg + strlen ("nrgctx-trampolines="));
6321 } else if (str_begins_with (arg, "nimt-trampolines=")) {
6322 opts->nimt_trampolines = atoi (arg + strlen ("nimt-trampolines="));
6323 } else if (str_begins_with (arg, "ngsharedvt-trampolines=")) {
6324 opts->ngsharedvt_arg_trampolines = atoi (arg + strlen ("ngsharedvt-trampolines="));
6325 } else if (str_begins_with (arg, "autoreg")) {
6326 opts->autoreg = TRUE;
6327 } else if (str_begins_with (arg, "tool-prefix=")) {
6328 opts->tool_prefix = g_strdup (arg + strlen ("tool-prefix="));
6329 } else if (str_begins_with (arg, "soft-debug")) {
6330 opts->soft_debug = TRUE;
6331 } else if (str_begins_with (arg, "direct-pinvoke")) {
6332 opts->direct_pinvoke = TRUE;
6333 } else if (str_begins_with (arg, "direct-icalls")) {
6334 opts->direct_icalls = TRUE;
6335 #if defined(TARGET_ARM) || defined(TARGET_ARM64)
6336 } else if (str_begins_with (arg, "iphone-abi")) {
6337 // older full-aot users did depend on this.
6339 } else if (str_begins_with (arg, "no-direct-calls")) {
6340 opts->no_direct_calls = TRUE;
6341 } else if (str_begins_with (arg, "print-skipped")) {
6342 opts->print_skipped_methods = TRUE;
6343 } else if (str_begins_with (arg, "stats")) {
6345 } else if (str_begins_with (arg, "no-instances")) {
6346 opts->no_instances = TRUE;
6347 } else if (str_begins_with (arg, "log-generics")) {
6348 opts->log_generics = TRUE;
6349 } else if (str_begins_with (arg, "log-instances=")) {
6350 opts->log_instances = TRUE;
6351 opts->instances_logfile_path = g_strdup (arg + strlen ("log-instances="));
6352 } else if (str_begins_with (arg, "log-instances")) {
6353 opts->log_instances = TRUE;
6354 } else if (str_begins_with (arg, "internal-logfile=")) {
6355 opts->logfile = g_strdup (arg + strlen ("internal-logfile="));
6356 } else if (str_begins_with (arg, "mtriple=")) {
6357 opts->mtriple = g_strdup (arg + strlen ("mtriple="));
6358 } else if (str_begins_with (arg, "llvm-path=")) {
6359 opts->llvm_path = g_strdup (arg + strlen ("llvm-path="));
6360 } else if (!strcmp (arg, "llvm")) {
6362 } else if (str_begins_with (arg, "readonly-value=")) {
6363 add_readonly_value (opts, arg + strlen ("readonly-value="));
6364 } else if (str_begins_with (arg, "info")) {
6365 printf ("AOT target setup: %s.\n", AOT_TARGET_STR);
6367 } else if (str_begins_with (arg, "gc-maps")) {
6368 mini_gc_enable_gc_maps_for_aot ();
6369 } else if (str_begins_with (arg, "help") || str_begins_with (arg, "?")) {
6370 printf ("Supported options for --aot:\n");
6371 printf (" outfile=\n");
6372 printf (" save-temps\n");
6373 printf (" keep-temps\n");
6374 printf (" write-symbols\n");
6375 printf (" metadata-only\n");
6376 printf (" bind-to-runtime-version\n");
6378 printf (" threads=\n");
6379 printf (" static\n");
6380 printf (" asmonly\n");
6381 printf (" asmwriter\n");
6382 printf (" nodebug\n");
6383 printf (" dwarfdebug\n");
6384 printf (" ntrampolines=\n");
6385 printf (" nrgctx-trampolines=\n");
6386 printf (" nimt-trampolines=\n");
6387 printf (" ngsharedvt-trampolines=\n");
6388 printf (" autoreg\n");
6389 printf (" tool-prefix=\n");
6390 printf (" readonly-value=\n");
6391 printf (" soft-debug\n");
6392 printf (" gc-maps\n");
6393 printf (" print-skipped\n");
6394 printf (" no-instances\n");
6395 printf (" stats\n");
6397 printf (" help/?\n");
6400 fprintf (stderr, "AOT : Unknown argument '%s'.\n", arg);
6405 if (opts->use_trampolines_page) {
6406 opts->ntrampolines = 0;
6407 opts->nrgctx_trampolines = 0;
6408 opts->nimt_trampolines = 0;
6409 opts->ngsharedvt_arg_trampolines = 0;
6415 add_token_info_hash (gpointer key, gpointer value, gpointer user_data)
6417 MonoMethod *method = (MonoMethod*)key;
6418 MonoJumpInfoToken *ji = (MonoJumpInfoToken*)value;
6419 MonoAotCompile *acfg = user_data;
6420 MonoJumpInfoToken *new_ji;
6422 new_ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoJumpInfoToken));
6423 new_ji->image = ji->image;
6424 new_ji->token = ji->token;
6425 g_hash_table_insert (acfg->token_info_hash, method, new_ji);
6429 can_encode_class (MonoAotCompile *acfg, MonoClass *klass)
6431 if (klass->type_token)
6433 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR) || (klass->byval_arg.type == MONO_TYPE_PTR))
6436 return can_encode_class (acfg, klass->element_class);
6441 can_encode_method (MonoAotCompile *acfg, MonoMethod *method)
6443 if (method->wrapper_type) {
6444 switch (method->wrapper_type) {
6445 case MONO_WRAPPER_NONE:
6446 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
6447 case MONO_WRAPPER_XDOMAIN_INVOKE:
6448 case MONO_WRAPPER_STFLD:
6449 case MONO_WRAPPER_LDFLD:
6450 case MONO_WRAPPER_LDFLDA:
6451 case MONO_WRAPPER_LDFLD_REMOTE:
6452 case MONO_WRAPPER_STFLD_REMOTE:
6453 case MONO_WRAPPER_STELEMREF:
6454 case MONO_WRAPPER_ISINST:
6455 case MONO_WRAPPER_PROXY_ISINST:
6456 case MONO_WRAPPER_ALLOC:
6457 case MONO_WRAPPER_REMOTING_INVOKE:
6458 case MONO_WRAPPER_UNKNOWN:
6459 case MONO_WRAPPER_WRITE_BARRIER:
6460 case MONO_WRAPPER_DELEGATE_INVOKE:
6461 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
6462 case MONO_WRAPPER_DELEGATE_END_INVOKE:
6463 case MONO_WRAPPER_SYNCHRONIZED:
6465 case MONO_WRAPPER_MANAGED_TO_MANAGED:
6466 case MONO_WRAPPER_CASTCLASS: {
6467 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
6476 //printf ("Skip (wrapper call): %d -> %s\n", patch_info->type, mono_method_full_name (patch_info->data.method, TRUE));
6480 if (!method->token) {
6481 /* The method is part of a constructed type like Int[,].Set (). */
6482 if (!g_hash_table_lookup (acfg->token_info_hash, method)) {
6483 if (method->klass->rank)
6493 can_encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
6495 switch (patch_info->type) {
6496 case MONO_PATCH_INFO_METHOD:
6497 case MONO_PATCH_INFO_METHODCONST:
6498 case MONO_PATCH_INFO_METHOD_CODE_SLOT: {
6499 MonoMethod *method = patch_info->data.method;
6501 return can_encode_method (acfg, method);
6503 case MONO_PATCH_INFO_VTABLE:
6504 case MONO_PATCH_INFO_CLASS_INIT:
6505 case MONO_PATCH_INFO_CLASS:
6506 case MONO_PATCH_INFO_IID:
6507 case MONO_PATCH_INFO_ADJUSTED_IID:
6508 if (!can_encode_class (acfg, patch_info->data.klass)) {
6509 //printf ("Skip: %s\n", mono_type_full_name (&patch_info->data.klass->byval_arg));
6513 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE: {
6514 if (!can_encode_class (acfg, patch_info->data.del_tramp->klass)) {
6515 //printf ("Skip: %s\n", mono_type_full_name (&patch_info->data.klass->byval_arg));
6520 case MONO_PATCH_INFO_RGCTX_FETCH: {
6521 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
6523 if (!can_encode_method (acfg, entry->method))
6525 if (!can_encode_patch (acfg, entry->data))
6539 * AOT compile a given method.
6540 * This function might be called by multiple threads, so it must be thread-safe.
6543 compile_method (MonoAotCompile *acfg, MonoMethod *method)
6546 MonoJumpInfo *patch_info;
6549 MonoMethod *wrapped;
6552 if (acfg->aot_opts.metadata_only)
6555 mono_acfg_lock (acfg);
6556 index = get_method_index (acfg, method);
6557 mono_acfg_unlock (acfg);
6559 /* fixme: maybe we can also precompile wrapper methods */
6560 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
6561 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
6562 (method->flags & METHOD_ATTRIBUTE_ABSTRACT)) {
6563 //printf ("Skip (impossible): %s\n", mono_method_full_name (method, TRUE));
6567 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
6570 wrapped = mono_marshal_method_from_wrapper (method);
6571 if (wrapped && (wrapped->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && wrapped->is_generic)
6572 // FIXME: The wrapper should be generic too, but it is not
6575 if (method->wrapper_type == MONO_WRAPPER_COMINTEROP)
6578 InterlockedIncrement (&acfg->stats.mcount);
6581 if (method->is_generic || method->klass->generic_container) {
6582 InterlockedIncrement (&acfg->stats.genericcount);
6587 //acfg->aot_opts.print_skipped_methods = TRUE;
6590 * Since these methods are the only ones which are compiled with
6591 * AOT support, and they are not used by runtime startup/shutdown code,
6592 * the runtime will not see AOT methods during AOT compilation,so it
6593 * does not need to support them by creating a fake GOT etc.
6595 flags = JIT_FLAG_AOT;
6596 if (acfg->aot_opts.full_aot)
6597 flags |= JIT_FLAG_FULL_AOT;
6599 flags |= JIT_FLAG_LLVM;
6600 cfg = mini_method_compile (method, acfg->opts, mono_get_root_domain (), flags, 0);
6601 mono_loader_clear_error ();
6603 if (cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
6604 if (acfg->aot_opts.print_skipped_methods)
6605 printf ("Skip (gshared failure): %s (%s)\n", mono_method_full_name (method, TRUE), cfg->exception_message);
6606 InterlockedIncrement (&acfg->stats.genericcount);
6609 if (cfg->exception_type != MONO_EXCEPTION_NONE) {
6610 if (acfg->aot_opts.print_skipped_methods)
6611 printf ("Skip (JIT failure): %s\n", mono_method_full_name (method, TRUE));
6612 /* Let the exception happen at runtime */
6616 if (cfg->disable_aot) {
6617 if (acfg->aot_opts.print_skipped_methods)
6618 printf ("Skip (disabled): %s\n", mono_method_full_name (method, TRUE));
6619 InterlockedIncrement (&acfg->stats.ocount);
6620 mono_destroy_compile (cfg);
6623 cfg->method_index = index;
6625 /* Nullify patches which need no aot processing */
6626 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
6627 switch (patch_info->type) {
6628 case MONO_PATCH_INFO_LABEL:
6629 case MONO_PATCH_INFO_BB:
6630 patch_info->type = MONO_PATCH_INFO_NONE;
6637 /* Collect method->token associations from the cfg */
6638 mono_acfg_lock (acfg);
6639 g_hash_table_foreach (cfg->token_info_hash, add_token_info_hash, acfg);
6640 mono_acfg_unlock (acfg);
6641 g_hash_table_destroy (cfg->token_info_hash);
6642 cfg->token_info_hash = NULL;
6645 * Check for absolute addresses.
6648 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
6649 switch (patch_info->type) {
6650 case MONO_PATCH_INFO_ABS:
6651 /* unable to handle this */
6660 if (acfg->aot_opts.print_skipped_methods)
6661 printf ("Skip (abs call): %s\n", mono_method_full_name (method, TRUE));
6662 InterlockedIncrement (&acfg->stats.abscount);
6663 mono_destroy_compile (cfg);
6667 /* Lock for the rest of the code */
6668 mono_acfg_lock (acfg);
6671 * Check for methods/klasses we can't encode.
6674 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
6675 if (!can_encode_patch (acfg, patch_info))
6680 if (acfg->aot_opts.print_skipped_methods)
6681 printf ("Skip (patches): %s\n", mono_method_full_name (method, TRUE));
6682 acfg->stats.ocount++;
6683 mono_destroy_compile (cfg);
6684 mono_acfg_unlock (acfg);
6688 if (method->is_inflated && acfg->aot_opts.log_instances) {
6689 if (acfg->instances_logfile)
6690 fprintf (acfg->instances_logfile, "%s ### %d\n", mono_method_full_name (method, TRUE), cfg->code_size);
6692 printf ("%s ### %d\n", mono_method_full_name (method, TRUE), cfg->code_size);
6695 /* Adds generic instances referenced by this method */
6697 * The depth is used to avoid infinite loops when generic virtual recursion is
6700 depth = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_depth, method));
6701 if (!acfg->aot_opts.no_instances && depth < 32) {
6702 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
6703 switch (patch_info->type) {
6704 case MONO_PATCH_INFO_METHOD: {
6705 MonoMethod *m = patch_info->data.method;
6706 if (m->is_inflated) {
6707 if (!(mono_class_generic_sharing_enabled (m->klass) &&
6708 mono_method_is_generic_sharable_full (m, FALSE, FALSE, FALSE)) &&
6709 !method_has_type_vars (m)) {
6710 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
6711 if (acfg->aot_opts.full_aot)
6712 add_extra_method_with_depth (acfg, mono_marshal_get_native_wrapper (m, TRUE, TRUE), depth + 1);
6714 add_extra_method_with_depth (acfg, m, depth + 1);
6715 add_types_from_method_header (acfg, m);
6718 add_generic_class_with_depth (acfg, m->klass, depth + 5, "method");
6720 if (m->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && !strcmp (m->name, "ElementAddr"))
6721 add_extra_method_with_depth (acfg, m, depth + 1);
6724 case MONO_PATCH_INFO_VTABLE: {
6725 MonoClass *klass = patch_info->data.klass;
6727 if (klass->generic_class && !mini_class_is_generic_sharable (klass))
6728 add_generic_class_with_depth (acfg, klass, depth + 5, "vtable");
6731 case MONO_PATCH_INFO_SFLDA: {
6732 MonoClass *klass = patch_info->data.field->parent;
6734 /* The .cctor needs to run at runtime. */
6735 if (klass->generic_class && !mono_generic_context_is_sharable (&klass->generic_class->context, FALSE) && mono_class_get_cctor (klass))
6736 add_extra_method_with_depth (acfg, mono_class_get_cctor (klass), depth + 1);
6745 /* Determine whenever the method has GOT slots */
6746 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
6747 switch (patch_info->type) {
6748 case MONO_PATCH_INFO_GOT_OFFSET:
6749 case MONO_PATCH_INFO_NONE:
6750 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
6752 case MONO_PATCH_INFO_IMAGE:
6753 /* The assembly is stored in GOT slot 0 */
6754 if (patch_info->data.image != acfg->image)
6755 cfg->has_got_slots = TRUE;
6758 if (!is_plt_patch (patch_info))
6759 cfg->has_got_slots = TRUE;
6764 if (!cfg->has_got_slots)
6765 InterlockedIncrement (&acfg->stats.methods_without_got_slots);
6768 * FIXME: Instead of this mess, allocate the patches from the aot mempool.
6770 /* Make a copy of the patch info which is in the mempool */
6772 MonoJumpInfo *patches = NULL, *patches_end = NULL;
6774 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
6775 MonoJumpInfo *new_patch_info = mono_patch_info_dup_mp (acfg->mempool, patch_info);
6778 patches = new_patch_info;
6780 patches_end->next = new_patch_info;
6781 patches_end = new_patch_info;
6783 cfg->patch_info = patches;
6785 /* Make a copy of the unwind info */
6787 GSList *l, *unwind_ops;
6791 for (l = cfg->unwind_ops; l; l = l->next) {
6792 op = mono_mempool_alloc (acfg->mempool, sizeof (MonoUnwindOp));
6793 memcpy (op, l->data, sizeof (MonoUnwindOp));
6794 unwind_ops = g_slist_prepend_mempool (acfg->mempool, unwind_ops, op);
6796 cfg->unwind_ops = g_slist_reverse (unwind_ops);
6798 /* Make a copy of the argument/local info */
6800 MonoInst **args, **locals;
6801 MonoMethodSignature *sig;
6802 MonoMethodHeader *header;
6805 sig = mono_method_signature (method);
6806 args = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * (sig->param_count + sig->hasthis));
6807 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
6808 args [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
6809 memcpy (args [i], cfg->args [i], sizeof (MonoInst));
6813 header = mono_method_get_header (method);
6814 locals = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * header->num_locals);
6815 for (i = 0; i < header->num_locals; ++i) {
6816 locals [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
6817 memcpy (locals [i], cfg->locals [i], sizeof (MonoInst));
6819 cfg->locals = locals;
6822 /* Free some fields used by cfg to conserve memory */
6823 mono_mempool_destroy (cfg->mempool);
6824 cfg->mempool = NULL;
6825 g_free (cfg->varinfo);
6826 cfg->varinfo = NULL;
6830 mono_regstate_free (cfg->rs);
6834 //printf ("Compile: %s\n", mono_method_full_name (method, TRUE));
6836 while (index >= acfg->cfgs_size) {
6837 MonoCompile **new_cfgs;
6840 new_size = acfg->cfgs_size * 2;
6841 new_cfgs = g_new0 (MonoCompile*, new_size);
6842 memcpy (new_cfgs, acfg->cfgs, sizeof (MonoCompile*) * acfg->cfgs_size);
6843 g_free (acfg->cfgs);
6844 acfg->cfgs = new_cfgs;
6845 acfg->cfgs_size = new_size;
6847 acfg->cfgs [index] = cfg;
6849 g_hash_table_insert (acfg->method_to_cfg, cfg->orig_method, cfg);
6852 if (cfg->orig_method->wrapper_type)
6853 g_ptr_array_add (acfg->extra_methods, cfg->orig_method);
6856 mono_acfg_unlock (acfg);
6858 InterlockedIncrement (&acfg->stats.ccount);
6862 compile_thread_main (gpointer *user_data)
6864 MonoDomain *domain = user_data [0];
6865 MonoAotCompile *acfg = user_data [1];
6866 GPtrArray *methods = user_data [2];
6869 mono_thread_attach (domain);
6871 for (i = 0; i < methods->len; ++i)
6872 compile_method (acfg, g_ptr_array_index (methods, i));
6876 load_profile_files (MonoAotCompile *acfg)
6880 int file_index, res, method_index, i;
6883 GList *unordered, *l;
6888 tmp = g_strdup_printf ("%s/.mono/aot-profile-data/%s-%d", g_get_home_dir (), acfg->image->assembly_name, file_index);
6890 if (!g_file_test (tmp, G_FILE_TEST_IS_REGULAR)) {
6895 infile = fopen (tmp, "r");
6898 printf ("Using profile data file '%s'\n", tmp);
6903 res = fscanf (infile, "%32s\n", ver);
6904 if ((res != 1) || strcmp (ver, "#VER:2") != 0) {
6905 printf ("Profile file has wrong version or invalid.\n");
6912 MonoMethodDesc *desc;
6915 if (fgets (name, 1023, infile) == NULL)
6918 /* Kill the newline */
6919 if (strlen (name) > 0)
6920 name [strlen (name) - 1] = '\0';
6922 desc = mono_method_desc_new (name, TRUE);
6924 method = mono_method_desc_search_in_image (desc, acfg->image);
6926 if (method && mono_method_get_token (method)) {
6927 token = mono_method_get_token (method);
6928 method_index = mono_metadata_token_index (token) - 1;
6931 for (i = 0; i < acfg->method_order->len; ++i) {
6932 if (g_ptr_array_index (acfg->method_order, i) == GUINT_TO_POINTER (method_index)) {
6938 g_ptr_array_add (acfg->method_order, GUINT_TO_POINTER (method_index));
6940 //printf ("No method found matching '%s'.\n", name);
6946 /* Add missing methods */
6948 for (method_index = 0; method_index < acfg->image->tables [MONO_TABLE_METHOD].rows; ++method_index) {
6950 for (i = 0; i < acfg->method_order->len; ++i) {
6951 if (g_ptr_array_index (acfg->method_order, i) == GUINT_TO_POINTER (method_index)) {
6957 unordered = g_list_prepend (unordered, GUINT_TO_POINTER (method_index));
6959 unordered = g_list_reverse (unordered);
6960 for (l = unordered; l; l = l->next)
6961 g_ptr_array_add (acfg->method_order, l->data);
6964 /* Used by the LLVM backend */
6966 mono_aot_get_got_offset (MonoJumpInfo *ji)
6968 return get_got_offset (llvm_acfg, ji);
6972 mono_aot_get_method_name (MonoCompile *cfg)
6974 if (llvm_acfg->aot_opts.static_link)
6975 /* Include the assembly name too to avoid duplicate symbol errors */
6976 return g_strdup_printf ("%s_%s", llvm_acfg->assembly_name_sym, get_debug_sym (cfg->orig_method, "", llvm_acfg->method_label_hash));
6978 return get_debug_sym (cfg->orig_method, "", llvm_acfg->method_label_hash);
6982 mono_aot_is_direct_callable (MonoJumpInfo *patch_info)
6984 return is_direct_callable (llvm_acfg, NULL, patch_info);
6988 mono_aot_mark_unused_llvm_plt_entry (MonoJumpInfo *patch_info)
6990 MonoPltEntry *plt_entry;
6992 plt_entry = get_plt_entry (llvm_acfg, patch_info);
6993 plt_entry->llvm_used = FALSE;
6997 mono_aot_get_plt_symbol (MonoJumpInfoType type, gconstpointer data)
6999 MonoJumpInfo *ji = mono_mempool_alloc (llvm_acfg->mempool, sizeof (MonoJumpInfo));
7000 MonoPltEntry *plt_entry;
7003 ji->data.target = data;
7005 if (!can_encode_patch (llvm_acfg, ji))
7008 plt_entry = get_plt_entry (llvm_acfg, ji);
7009 plt_entry->llvm_used = TRUE;
7011 #if defined(TARGET_MACH)
7012 return g_strdup_printf (plt_entry->llvm_symbol + strlen (llvm_acfg->llvm_label_prefix));
7014 return g_strdup_printf (plt_entry->llvm_symbol);
7019 mono_aot_get_method_index (MonoMethod *method)
7021 g_assert (llvm_acfg);
7022 return get_method_index (llvm_acfg, method);
7026 mono_aot_patch_info_dup (MonoJumpInfo* ji)
7030 mono_acfg_lock (llvm_acfg);
7031 res = mono_patch_info_dup_mp (llvm_acfg->mempool, ji);
7032 mono_acfg_unlock (llvm_acfg);
7042 * Emit the LLVM code into an LLVM bytecode file, and compile it using the LLVM
7046 emit_llvm_file (MonoAotCompile *acfg)
7048 char *command, *opts, *tempbc;
7050 MonoJumpInfo *patch_info;
7053 * When using LLVM, we let llvm emit the got since the LLVM IL needs to refer
7057 /* Compute the final size of the got */
7058 for (i = 0; i < acfg->nmethods; ++i) {
7059 if (acfg->cfgs [i]) {
7060 for (patch_info = acfg->cfgs [i]->patch_info; patch_info; patch_info = patch_info->next) {
7061 if (patch_info->type != MONO_PATCH_INFO_NONE) {
7062 if (!is_plt_patch (patch_info))
7063 get_got_offset (acfg, patch_info);
7065 get_plt_entry (acfg, patch_info);
7071 acfg->final_got_size = acfg->got_offset + acfg->plt_offset;
7073 if (acfg->aot_opts.full_aot) {
7077 * Need to add the got entries used by the trampolines.
7078 * This is only a conservative approximation.
7080 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
7081 /* For the generic + rgctx trampolines */
7082 acfg->final_got_size += 400;
7083 /* For the specific trampolines */
7084 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype)
7085 acfg->final_got_size += acfg->num_trampolines [ntype] * 2;
7090 tempbc = g_strdup_printf ("%s.bc", acfg->tmpbasename);
7091 mono_llvm_emit_aot_module (tempbc, g_path_get_basename (acfg->image->name), acfg->final_got_size);
7095 * FIXME: Experiment with adding optimizations, the -std-compile-opts set takes
7096 * a lot of time, and doesn't seem to save much space.
7097 * The following optimizations cannot be enabled:
7099 * - 'jump-threading' changes our blockaddress references to int constants.
7100 * - 'basiccg' fails because it contains:
7101 * if (CS && !isa<IntrinsicInst>(II)) {
7102 * and isa<IntrinsicInst> is false for invokes to intrinsics (iltests.exe).
7103 * - 'prune-eh' and 'functionattrs' depend on 'basiccg'.
7104 * The opt list below was produced by taking the output of:
7105 * llvm-as < /dev/null | opt -O2 -disable-output -debug-pass=Arguments
7106 * then removing tailcallelim + the global opts.
7107 * strip-dead-prototypes deletes unused intrinsics definitions.
7109 opts = g_strdup ("-instcombine -simplifycfg");
7110 //opts = g_strdup ("-simplifycfg -domtree -domfrontier -scalarrepl -instcombine -simplifycfg -domtree -domfrontier -scalarrepl -simplify-libcalls -instcombine -simplifycfg -instcombine -simplifycfg -reassociate -domtree -loops -loop-simplify -domfrontier -loop-simplify -lcssa -loop-rotate -licm -lcssa -loop-unswitch -instcombine -scalar-evolution -loop-simplify -lcssa -iv-users -indvars -loop-deletion -loop-simplify -lcssa -loop-unroll -instcombine -memdep -gvn -memdep -memcpyopt -sccp -instcombine -domtree -memdep -dse -adce -simplifycfg -domtree -verify");
7111 /* The dse pass is disabled because of #13734 and #17616 */
7113 * The dse bug is in DeadStoreElimination.cpp:isOverwrite ():
7114 * // If we have no DataLayout information around, then the size of the store
7115 * // is inferrable from the pointee type. If they are the same type, then
7116 * // we know that the store is safe.
7117 * if (AA.getDataLayout() == 0 &&
7118 * Later.Ptr->getType() == Earlier.Ptr->getType()) {
7119 * return OverwriteComplete;
7120 * Here, if 'Earlier' refers to a memset, and Later has no size info, it mistakenly thinks the memset is redundant.
7122 opts = g_strdup ("-targetlibinfo -no-aa -basicaa -notti -instcombine -simplifycfg -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");
7124 command = g_strdup_printf ("%sopt -f %s -o \"%s.opt.bc\" \"%s.bc\"", acfg->aot_opts.llvm_path, opts, acfg->tmpbasename, acfg->tmpbasename);
7125 aot_printf (acfg, "Executing opt: %s\n", command);
7126 if (system (command) != 0)
7131 if (!acfg->llc_args)
7132 acfg->llc_args = g_string_new ("");
7134 /* Verbose asm slows down llc greatly */
7135 g_string_append (acfg->llc_args, " -asm-verbose=false");
7137 if (acfg->aot_opts.mtriple)
7138 g_string_append_printf (acfg->llc_args, " -mtriple=%s", acfg->aot_opts.mtriple);
7140 #if defined(TARGET_MACH) && defined(TARGET_ARM)
7141 /* ios requires PIC code now */
7142 g_string_append_printf (acfg->llc_args, " -relocation-model=pic");
7144 if (llvm_acfg->aot_opts.static_link)
7145 g_string_append_printf (acfg->llc_args, " -relocation-model=static");
7147 g_string_append_printf (acfg->llc_args, " -relocation-model=pic");
7149 unlink (acfg->tmpfname);
7151 command = g_strdup_printf ("%sllc %s -disable-gnu-eh-frame -enable-mono-eh-frame -o \"%s\" \"%s.opt.bc\"", acfg->aot_opts.llvm_path, acfg->llc_args->str, acfg->tmpfname, acfg->tmpbasename);
7153 aot_printf (acfg, "Executing llc: %s\n", command);
7155 if (system (command) != 0)
7162 emit_code (MonoAotCompile *acfg)
7164 int oindex, i, prev_index;
7167 #if defined(TARGET_POWERPC64)
7168 sprintf (symbol, ".Lgot_addr");
7169 emit_section_change (acfg, ".text", 0);
7170 emit_alignment (acfg, 8);
7171 emit_label (acfg, symbol);
7172 emit_pointer (acfg, acfg->got_symbol);
7176 * This global symbol is used to compute the address of each method using the
7177 * code_offsets array. It is also used to compute the memory ranges occupied by
7178 * AOT code, so it must be equal to the address of the first emitted method.
7180 emit_section_change (acfg, ".text", 0);
7181 emit_alignment (acfg, 8);
7183 for (i = 0; i < acfg->nmethods; ++i) {
7184 if (acfg->cfgs [i] && acfg->cfgs [i]->compile_llvm) {
7185 acfg->methods_symbol = g_strdup (acfg->cfgs [i]->asm_symbol);
7190 if (!acfg->methods_symbol) {
7191 sprintf (symbol, "methods");
7192 emit_label (acfg, symbol);
7193 acfg->methods_symbol = g_strdup (symbol);
7197 * Emit some padding so the local symbol for the first method doesn't have the
7198 * same address as 'methods'.
7200 #if defined(__default_codegen__)
7201 emit_zero_bytes (acfg, 16);
7202 #elif defined(__native_client_codegen__)
7204 const int kPaddingSize = 16;
7205 guint8 pad_buffer[kPaddingSize];
7206 mono_arch_nacl_pad (pad_buffer, kPaddingSize);
7207 emit_bytes (acfg, pad_buffer, kPaddingSize);
7211 for (oindex = 0; oindex < acfg->method_order->len; ++oindex) {
7215 i = GPOINTER_TO_UINT (g_ptr_array_index (acfg->method_order, oindex));
7217 cfg = acfg->cfgs [i];
7222 method = cfg->orig_method;
7224 /* Emit unbox trampoline */
7225 if (acfg->aot_opts.full_aot && cfg->orig_method->klass->valuetype) {
7226 sprintf (symbol, "ut_%d", get_method_index (acfg, method));
7228 emit_section_change (acfg, ".text", 0);
7229 #ifdef __native_client_codegen__
7230 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
7233 if (acfg->thumb_mixed && cfg->compile_llvm) {
7234 emit_set_thumb_mode (acfg);
7235 fprintf (acfg->fp, "\n.thumb_func\n");
7238 emit_label (acfg, symbol);
7240 arch_emit_unbox_trampoline (acfg, cfg, cfg->orig_method, cfg->asm_symbol);
7242 if (acfg->thumb_mixed && cfg->compile_llvm) {
7243 emit_set_arm_mode (acfg);
7247 if (cfg->compile_llvm)
7248 acfg->stats.llvm_count ++;
7250 emit_method_code (acfg, cfg);
7253 sprintf (symbol, "methods_end");
7254 emit_section_change (acfg, ".text", 0);
7255 emit_alignment (acfg, 8);
7256 emit_label (acfg, symbol);
7257 /* To distinguish it from the next symbol */
7258 emit_int32 (acfg, 0);
7261 * Add .no_dead_strip directives for all LLVM methods to prevent the OSX linker
7262 * from optimizing them away, since it doesn't see that code_offsets references them.
7263 * JITted methods don't need this since they are referenced using assembler local
7265 * FIXME: This is why write-symbols doesn't work on OSX ?
7267 if (acfg->llvm && acfg->need_no_dead_strip) {
7268 fprintf (acfg->fp, "\n");
7269 for (i = 0; i < acfg->nmethods; ++i) {
7270 if (acfg->cfgs [i] && acfg->cfgs [i]->compile_llvm)
7271 fprintf (acfg->fp, ".no_dead_strip %s\n", acfg->cfgs [i]->asm_symbol);
7275 if (acfg->direct_method_addresses) {
7276 acfg->flags |= MONO_AOT_FILE_FLAG_DIRECT_METHOD_ADDRESSES;
7279 * To work around linker issues, we emit a table of branches, and disassemble them at runtime.
7280 * This is PIE code, and the linker can update it if needed.
7282 sprintf (symbol, "method_addresses");
7283 emit_section_change (acfg, ".text", 1);
7284 emit_alignment (acfg, 8);
7285 emit_label (acfg, symbol);
7286 emit_local_symbol (acfg, symbol, "method_addresses_end", TRUE);
7287 emit_unset_mode (acfg);
7288 if (acfg->need_no_dead_strip)
7289 fprintf (acfg->fp, " .no_dead_strip %s\n", symbol);
7291 for (i = 0; i < acfg->nmethods; ++i) {
7292 #ifdef MONO_ARCH_AOT_SUPPORTED
7296 arch_emit_direct_call (acfg, acfg->cfgs [i]->asm_symbol, FALSE, acfg->thumb_mixed && acfg->cfgs [i]->compile_llvm, NULL, &call_size);
7298 arch_emit_direct_call (acfg, "method_addresses", FALSE, FALSE, NULL, &call_size);
7302 sprintf (symbol, "method_addresses_end");
7303 emit_label (acfg, symbol);
7306 sprintf (symbol, "code_offsets");
7307 emit_section_change (acfg, RODATA_SECT, 1);
7308 emit_alignment (acfg, 8);
7309 emit_label (acfg, symbol);
7310 emit_int32 (acfg, 0);
7312 sprintf (symbol, "code_offsets");
7313 emit_section_change (acfg, RODATA_SECT, 1);
7314 emit_alignment (acfg, 8);
7315 emit_label (acfg, symbol);
7317 acfg->stats.offsets_size += acfg->nmethods * 4;
7319 for (i = 0; i < acfg->nmethods; ++i) {
7320 if (acfg->cfgs [i]) {
7321 emit_symbol_diff (acfg, acfg->cfgs [i]->asm_symbol, acfg->methods_symbol, 0);
7323 emit_int32 (acfg, 0xffffffff);
7329 /* Emit a sorted table mapping methods to their unbox trampolines */
7330 sprintf (symbol, "unbox_trampolines");
7331 if (acfg->direct_method_addresses)
7332 emit_section_change (acfg, ".text", 0);
7334 emit_section_change (acfg, RODATA_SECT, 0);
7335 emit_alignment (acfg, 8);
7336 emit_label (acfg, symbol);
7339 for (i = 0; i < acfg->nmethods; ++i) {
7344 cfg = acfg->cfgs [i];
7348 method = cfg->orig_method;
7350 if (acfg->aot_opts.full_aot && cfg->orig_method->klass->valuetype) {
7351 #ifdef MONO_ARCH_AOT_SUPPORTED
7355 index = get_method_index (acfg, method);
7356 sprintf (symbol, "ut_%d", index);
7358 emit_int32 (acfg, index);
7359 if (acfg->direct_method_addresses) {
7360 #ifdef MONO_ARCH_AOT_SUPPORTED
7361 arch_emit_direct_call (acfg, symbol, FALSE, acfg->thumb_mixed && cfg->compile_llvm, NULL, &call_size);
7364 emit_symbol_diff (acfg, symbol, acfg->methods_symbol, 0);
7366 /* Make sure the table is sorted by index */
7367 g_assert (index > prev_index);
7371 sprintf (symbol, "unbox_trampolines_end");
7372 emit_label (acfg, symbol);
7373 emit_int32 (acfg, 0);
7377 emit_info (MonoAotCompile *acfg)
7383 offsets = g_new0 (gint32, acfg->nmethods);
7385 for (oindex = 0; oindex < acfg->method_order->len; ++oindex) {
7386 i = GPOINTER_TO_UINT (g_ptr_array_index (acfg->method_order, oindex));
7388 if (acfg->cfgs [i]) {
7389 emit_method_info (acfg, acfg->cfgs [i]);
7390 offsets [i] = acfg->cfgs [i]->method_info_offset;
7396 sprintf (symbol, "method_info_offsets");
7397 emit_section_change (acfg, RODATA_SECT, 1);
7398 emit_alignment (acfg, 8);
7399 emit_label (acfg, symbol);
7401 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->nmethods, 10, offsets);
7406 #endif /* #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT) */
7408 #define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
7409 #define mix(a,b,c) { \
7410 a -= c; a ^= rot(c, 4); c += b; \
7411 b -= a; b ^= rot(a, 6); a += c; \
7412 c -= b; c ^= rot(b, 8); b += a; \
7413 a -= c; a ^= rot(c,16); c += b; \
7414 b -= a; b ^= rot(a,19); a += c; \
7415 c -= b; c ^= rot(b, 4); b += a; \
7417 #define final(a,b,c) { \
7418 c ^= b; c -= rot(b,14); \
7419 a ^= c; a -= rot(c,11); \
7420 b ^= a; b -= rot(a,25); \
7421 c ^= b; c -= rot(b,16); \
7422 a ^= c; a -= rot(c,4); \
7423 b ^= a; b -= rot(a,14); \
7424 c ^= b; c -= rot(b,24); \
7428 mono_aot_type_hash (MonoType *t1)
7430 guint hash = t1->type;
7432 hash |= t1->byref << 6; /* do not collide with t1->type values */
7434 case MONO_TYPE_VALUETYPE:
7435 case MONO_TYPE_CLASS:
7436 case MONO_TYPE_SZARRAY:
7437 /* check if the distribution is good enough */
7438 return ((hash << 5) - hash) ^ mono_metadata_str_hash (t1->data.klass->name);
7440 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
7441 case MONO_TYPE_ARRAY:
7442 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
7443 case MONO_TYPE_GENERICINST:
7444 return ((hash << 5) - hash) ^ 0;
7451 * mono_aot_method_hash:
7453 * Return a hash code for methods which only depends on metadata.
7456 mono_aot_method_hash (MonoMethod *method)
7458 MonoMethodSignature *sig;
7462 guint32 *hashes_start, *hashes;
7464 MonoGenericInst *ginst = NULL;
7466 /* Similar to the hash in mono_method_get_imt_slot () */
7468 sig = mono_method_signature (method);
7470 if (method->is_inflated)
7471 ginst = ((MonoMethodInflated*)method)->context.method_inst;
7473 hashes_count = sig->param_count + 5 + (ginst ? ginst->type_argc : 0);
7474 hashes_start = g_malloc0 (hashes_count * sizeof (guint32));
7475 hashes = hashes_start;
7477 /* Some wrappers are assigned to random classes */
7478 if (!method->wrapper_type || method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
7479 klass = method->klass;
7481 klass = mono_defaults.object_class;
7483 if (!method->wrapper_type) {
7484 char *full_name = mono_type_full_name (&klass->byval_arg);
7486 hashes [0] = mono_metadata_str_hash (full_name);
7490 hashes [0] = mono_metadata_str_hash (klass->name);
7491 hashes [1] = mono_metadata_str_hash (klass->name_space);
7493 if (method->wrapper_type == MONO_WRAPPER_STFLD || method->wrapper_type == MONO_WRAPPER_LDFLD || method->wrapper_type == MONO_WRAPPER_LDFLDA)
7494 /* The method name includes a stringified pointer */
7497 hashes [2] = mono_metadata_str_hash (method->name);
7498 hashes [3] = method->wrapper_type;
7499 hashes [4] = mono_aot_type_hash (sig->ret);
7501 for (i = 0; i < sig->param_count; i++) {
7502 hashes [hindex ++] = mono_aot_type_hash (sig->params [i]);
7505 for (i = 0; i < ginst->type_argc; ++i)
7506 hashes [hindex ++] = mono_aot_type_hash (ginst->type_argv [i]);
7508 g_assert (hindex == hashes_count);
7510 /* Setup internal state */
7511 a = b = c = 0xdeadbeef + (((guint32)hashes_count)<<2);
7513 /* Handle most of the hashes */
7514 while (hashes_count > 3) {
7523 /* Handle the last 3 hashes (all the case statements fall through) */
7524 switch (hashes_count) {
7525 case 3 : c += hashes [2];
7526 case 2 : b += hashes [1];
7527 case 1 : a += hashes [0];
7529 case 0: /* nothing left to add */
7533 free (hashes_start);
7542 * mono_aot_get_array_helper_from_wrapper;
7544 * Get the helper method in Array called by an array wrapper method.
7547 mono_aot_get_array_helper_from_wrapper (MonoMethod *method)
7551 MonoGenericContext ctx;
7552 MonoType *args [16];
7553 char *mname, *iname, *s, *s2, *helper_name = NULL;
7555 prefix = "System.Collections.Generic";
7556 s = g_strdup_printf ("%s", method->name + strlen (prefix) + 1);
7557 s2 = strstr (s, "`1.");
7563 //printf ("X: %s %s\n", iname, mname);
7565 if (!strcmp (iname, "IList"))
7566 helper_name = g_strdup_printf ("InternalArray__%s", mname);
7568 helper_name = g_strdup_printf ("InternalArray__%s_%s", iname, mname);
7569 m = mono_class_get_method_from_name (mono_defaults.array_class, helper_name, mono_method_signature (method)->param_count);
7571 g_free (helper_name);
7574 if (m->is_generic) {
7575 memset (&ctx, 0, sizeof (ctx));
7576 args [0] = &method->klass->element_class->byval_arg;
7577 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
7578 m = mono_class_inflate_generic_method (m, &ctx);
7584 #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
7586 typedef struct HashEntry {
7587 guint32 key, value, index;
7588 struct HashEntry *next;
7592 * emit_extra_methods:
7594 * Emit methods which are not in the METHOD table, like wrappers.
7597 emit_extra_methods (MonoAotCompile *acfg)
7599 int i, table_size, buf_size;
7602 guint32 *info_offsets;
7605 HashEntry *entry, *new_entry;
7606 int nmethods, max_chain_length;
7609 info_offsets = g_new0 (guint32, acfg->extra_methods->len);
7611 /* Emit method info */
7613 for (i = 0; i < acfg->extra_methods->len; ++i) {
7614 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
7615 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
7621 p = buf = g_malloc (buf_size);
7625 method = cfg->method_to_register;
7627 encode_method_ref (acfg, method, p, &p);
7629 g_assert ((p - buf) < buf_size);
7631 info_offsets [i] = add_to_blob (acfg, buf, p - buf);
7636 * Construct a chained hash table for mapping indexes in extra_method_info to
7639 table_size = g_spaced_primes_closest ((int)(nmethods * 1.5));
7640 table = g_ptr_array_sized_new (table_size);
7641 for (i = 0; i < table_size; ++i)
7642 g_ptr_array_add (table, NULL);
7643 chain_lengths = g_new0 (int, table_size);
7644 max_chain_length = 0;
7645 for (i = 0; i < acfg->extra_methods->len; ++i) {
7646 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
7647 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
7653 key = info_offsets [i];
7654 value = get_method_index (acfg, method);
7656 hash = mono_aot_method_hash (method) % table_size;
7657 //printf ("X: %s %d\n", mono_method_full_name (method, 1), hash);
7659 chain_lengths [hash] ++;
7660 max_chain_length = MAX (max_chain_length, chain_lengths [hash]);
7662 new_entry = mono_mempool_alloc0 (acfg->mempool, sizeof (HashEntry));
7663 new_entry->key = key;
7664 new_entry->value = value;
7666 entry = g_ptr_array_index (table, hash);
7667 if (entry == NULL) {
7668 new_entry->index = hash;
7669 g_ptr_array_index (table, hash) = new_entry;
7672 entry = entry->next;
7674 entry->next = new_entry;
7675 new_entry->index = table->len;
7676 g_ptr_array_add (table, new_entry);
7680 //printf ("MAX: %d\n", max_chain_length);
7682 /* Emit the table */
7683 sprintf (symbol, "extra_method_table");
7684 emit_section_change (acfg, RODATA_SECT, 0);
7685 emit_alignment (acfg, 8);
7686 emit_label (acfg, symbol);
7688 emit_int32 (acfg, table_size);
7689 for (i = 0; i < table->len; ++i) {
7690 HashEntry *entry = g_ptr_array_index (table, i);
7692 if (entry == NULL) {
7693 emit_int32 (acfg, 0);
7694 emit_int32 (acfg, 0);
7695 emit_int32 (acfg, 0);
7697 //g_assert (entry->key > 0);
7698 emit_int32 (acfg, entry->key);
7699 emit_int32 (acfg, entry->value);
7701 emit_int32 (acfg, entry->next->index);
7703 emit_int32 (acfg, 0);
7708 * Emit a table reverse mapping method indexes to their index in extra_method_info.
7709 * This is used by mono_aot_find_jit_info ().
7711 sprintf (symbol, "extra_method_info_offsets");
7712 emit_section_change (acfg, RODATA_SECT, 0);
7713 emit_alignment (acfg, 8);
7714 emit_label (acfg, symbol);
7716 emit_int32 (acfg, acfg->extra_methods->len);
7717 for (i = 0; i < acfg->extra_methods->len; ++i) {
7718 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
7720 emit_int32 (acfg, get_method_index (acfg, method));
7721 emit_int32 (acfg, info_offsets [i]);
7726 emit_exception_info (MonoAotCompile *acfg)
7732 offsets = g_new0 (gint32, acfg->nmethods);
7733 for (i = 0; i < acfg->nmethods; ++i) {
7734 if (acfg->cfgs [i]) {
7735 emit_exception_debug_info (acfg, acfg->cfgs [i]);
7736 offsets [i] = acfg->cfgs [i]->ex_info_offset;
7742 sprintf (symbol, "ex_info_offsets");
7743 emit_section_change (acfg, RODATA_SECT, 1);
7744 emit_alignment (acfg, 8);
7745 emit_label (acfg, symbol);
7747 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->nmethods, 10, offsets);
7752 emit_unwind_info (MonoAotCompile *acfg)
7758 * The unwind info contains a lot of duplicates so we emit each unique
7759 * entry once, and only store the offset from the start of the table in the
7763 sprintf (symbol, "unwind_info");
7764 emit_section_change (acfg, RODATA_SECT, 1);
7765 emit_alignment (acfg, 8);
7766 emit_label (acfg, symbol);
7768 for (i = 0; i < acfg->unwind_ops->len; ++i) {
7769 guint32 index = GPOINTER_TO_UINT (g_ptr_array_index (acfg->unwind_ops, i));
7770 guint8 *unwind_info;
7771 guint32 unwind_info_len;
7775 unwind_info = mono_get_cached_unwind_info (index, &unwind_info_len);
7778 encode_value (unwind_info_len, p, &p);
7779 emit_bytes (acfg, buf, p - buf);
7780 emit_bytes (acfg, unwind_info, unwind_info_len);
7782 acfg->stats.unwind_info_size += (p - buf) + unwind_info_len;
7787 emit_class_info (MonoAotCompile *acfg)
7793 offsets = g_new0 (gint32, acfg->image->tables [MONO_TABLE_TYPEDEF].rows);
7794 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i)
7795 offsets [i] = emit_klass_info (acfg, MONO_TOKEN_TYPE_DEF | (i + 1));
7797 sprintf (symbol, "class_info_offsets");
7798 emit_section_change (acfg, RODATA_SECT, 1);
7799 emit_alignment (acfg, 8);
7800 emit_label (acfg, symbol);
7802 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->image->tables [MONO_TABLE_TYPEDEF].rows, 10, offsets);
7806 typedef struct ClassNameTableEntry {
7807 guint32 token, index;
7808 struct ClassNameTableEntry *next;
7809 } ClassNameTableEntry;
7812 emit_class_name_table (MonoAotCompile *acfg)
7815 guint32 token, hash;
7820 ClassNameTableEntry *entry, *new_entry;
7823 * Construct a chained hash table for mapping class names to typedef tokens.
7825 table_size = g_spaced_primes_closest ((int)(acfg->image->tables [MONO_TABLE_TYPEDEF].rows * 1.5));
7826 table = g_ptr_array_sized_new (table_size);
7827 for (i = 0; i < table_size; ++i)
7828 g_ptr_array_add (table, NULL);
7829 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
7831 token = MONO_TOKEN_TYPE_DEF | (i + 1);
7832 klass = mono_class_get_checked (acfg->image, token, &error);
7834 mono_error_cleanup (&error);
7837 full_name = mono_type_get_name_full (mono_class_get_type (klass), MONO_TYPE_NAME_FORMAT_FULL_NAME);
7838 hash = mono_metadata_str_hash (full_name) % table_size;
7841 /* FIXME: Allocate from the mempool */
7842 new_entry = g_new0 (ClassNameTableEntry, 1);
7843 new_entry->token = token;
7845 entry = g_ptr_array_index (table, hash);
7846 if (entry == NULL) {
7847 new_entry->index = hash;
7848 g_ptr_array_index (table, hash) = new_entry;
7851 entry = entry->next;
7853 entry->next = new_entry;
7854 new_entry->index = table->len;
7855 g_ptr_array_add (table, new_entry);
7859 /* Emit the table */
7860 sprintf (symbol, "class_name_table");
7861 emit_section_change (acfg, RODATA_SECT, 0);
7862 emit_alignment (acfg, 8);
7863 emit_label (acfg, symbol);
7865 /* FIXME: Optimize memory usage */
7866 g_assert (table_size < 65000);
7867 emit_int16 (acfg, table_size);
7868 g_assert (table->len < 65000);
7869 for (i = 0; i < table->len; ++i) {
7870 ClassNameTableEntry *entry = g_ptr_array_index (table, i);
7872 if (entry == NULL) {
7873 emit_int16 (acfg, 0);
7874 emit_int16 (acfg, 0);
7876 emit_int16 (acfg, mono_metadata_token_index (entry->token));
7878 emit_int16 (acfg, entry->next->index);
7880 emit_int16 (acfg, 0);
7886 emit_image_table (MonoAotCompile *acfg)
7892 * The image table is small but referenced in a lot of places.
7893 * So we emit it at once, and reference its elements by an index.
7896 sprintf (symbol, "image_table");
7897 emit_section_change (acfg, RODATA_SECT, 1);
7898 emit_alignment (acfg, 8);
7899 emit_label (acfg, symbol);
7901 emit_int32 (acfg, acfg->image_table->len);
7902 for (i = 0; i < acfg->image_table->len; i++) {
7903 MonoImage *image = (MonoImage*)g_ptr_array_index (acfg->image_table, i);
7904 MonoAssemblyName *aname = &image->assembly->aname;
7906 /* FIXME: Support multi-module assemblies */
7907 g_assert (image->assembly->image == image);
7909 emit_string (acfg, image->assembly_name);
7910 emit_string (acfg, image->guid);
7911 emit_string (acfg, aname->culture ? aname->culture : "");
7912 emit_string (acfg, (const char*)aname->public_key_token);
7914 emit_alignment (acfg, 8);
7915 emit_int32 (acfg, aname->flags);
7916 emit_int32 (acfg, aname->major);
7917 emit_int32 (acfg, aname->minor);
7918 emit_int32 (acfg, aname->build);
7919 emit_int32 (acfg, aname->revision);
7924 emit_got_info (MonoAotCompile *acfg)
7927 int i, first_plt_got_patch, buf_size;
7929 guint32 *got_info_offsets;
7931 /* Add the patches needed by the PLT to the GOT */
7932 acfg->plt_got_offset_base = acfg->got_offset;
7933 first_plt_got_patch = acfg->got_patches->len;
7934 for (i = 1; i < acfg->plt_offset; ++i) {
7935 MonoPltEntry *plt_entry = g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
7937 g_ptr_array_add (acfg->got_patches, plt_entry->ji);
7939 acfg->stats.got_slot_types [plt_entry->ji->type] ++;
7942 acfg->got_offset += acfg->plt_offset;
7946 * - optimize offsets table.
7947 * - reduce number of exported symbols.
7948 * - emit info for a klass only once.
7949 * - determine when a method uses a GOT slot which is guaranteed to be already
7951 * - clean up and document the code.
7952 * - use String.Empty in class libs.
7955 /* Encode info required to decode shared GOT entries */
7956 buf_size = acfg->got_patches->len * 128;
7957 p = buf = mono_mempool_alloc (acfg->mempool, buf_size);
7958 got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->got_patches->len * sizeof (guint32));
7959 acfg->plt_got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->plt_offset * sizeof (guint32));
7961 if (acfg->plt_offset)
7962 acfg->plt_got_info_offsets [0] = 0;
7963 for (i = 0; i < acfg->got_patches->len; ++i) {
7964 MonoJumpInfo *ji = g_ptr_array_index (acfg->got_patches, i);
7969 encode_value (ji->type, p, &p);
7971 encode_patch (acfg, ji, p, &p);
7972 acfg->stats.got_slot_info_sizes [ji->type] += p - p2;
7973 g_assert (p - buf <= buf_size);
7974 got_info_offsets [i] = add_to_blob (acfg, buf, p - buf);
7976 if (i >= first_plt_got_patch)
7977 acfg->plt_got_info_offsets [i - first_plt_got_patch + 1] = got_info_offsets [i];
7978 acfg->stats.got_info_size += p - buf;
7981 /* Emit got_info_offsets table */
7982 sprintf (symbol, "got_info_offsets");
7983 emit_section_change (acfg, RODATA_SECT, 1);
7984 emit_alignment (acfg, 8);
7985 emit_label (acfg, symbol);
7987 /* No need to emit offsets for the got plt entries, the plt embeds them directly */
7988 acfg->stats.offsets_size += emit_offset_table (acfg, first_plt_got_patch, 10, (gint32*)got_info_offsets);
7992 emit_got (MonoAotCompile *acfg)
7997 /* Don't make GOT global so accesses to it don't need relocations */
7998 sprintf (symbol, "%s", acfg->got_symbol);
7999 emit_section_change (acfg, ".bss", 0);
8000 emit_alignment (acfg, 8);
8001 emit_local_symbol (acfg, symbol, "got_end", FALSE);
8002 emit_label (acfg, symbol);
8003 if (acfg->got_offset > 0)
8004 emit_zero_bytes (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
8006 sprintf (symbol, "got_end");
8007 emit_label (acfg, symbol);
8011 typedef struct GlobalsTableEntry {
8012 guint32 value, index;
8013 struct GlobalsTableEntry *next;
8014 } GlobalsTableEntry;
8017 emit_globals (MonoAotCompile *acfg)
8023 GlobalsTableEntry *entry, *new_entry;
8025 if (!acfg->aot_opts.static_link)
8029 * When static linking, we emit a table containing our globals.
8033 * Construct a chained hash table for mapping global names to their index in
8034 * the globals table.
8036 table_size = g_spaced_primes_closest ((int)(acfg->globals->len * 1.5));
8037 table = g_ptr_array_sized_new (table_size);
8038 for (i = 0; i < table_size; ++i)
8039 g_ptr_array_add (table, NULL);
8040 for (i = 0; i < acfg->globals->len; ++i) {
8041 char *name = g_ptr_array_index (acfg->globals, i);
8043 hash = mono_metadata_str_hash (name) % table_size;
8045 /* FIXME: Allocate from the mempool */
8046 new_entry = g_new0 (GlobalsTableEntry, 1);
8047 new_entry->value = i;
8049 entry = g_ptr_array_index (table, hash);
8050 if (entry == NULL) {
8051 new_entry->index = hash;
8052 g_ptr_array_index (table, hash) = new_entry;
8055 entry = entry->next;
8057 entry->next = new_entry;
8058 new_entry->index = table->len;
8059 g_ptr_array_add (table, new_entry);
8063 /* Emit the table */
8064 sprintf (symbol, ".Lglobals_hash");
8065 emit_section_change (acfg, RODATA_SECT, 0);
8066 emit_alignment (acfg, 8);
8067 emit_label (acfg, symbol);
8069 /* FIXME: Optimize memory usage */
8070 g_assert (table_size < 65000);
8071 emit_int16 (acfg, table_size);
8072 for (i = 0; i < table->len; ++i) {
8073 GlobalsTableEntry *entry = g_ptr_array_index (table, i);
8075 if (entry == NULL) {
8076 emit_int16 (acfg, 0);
8077 emit_int16 (acfg, 0);
8079 emit_int16 (acfg, entry->value + 1);
8081 emit_int16 (acfg, entry->next->index);
8083 emit_int16 (acfg, 0);
8087 /* Emit the names */
8088 for (i = 0; i < acfg->globals->len; ++i) {
8089 char *name = g_ptr_array_index (acfg->globals, i);
8091 sprintf (symbol, "name_%d", i);
8092 emit_section_change (acfg, RODATA_SECT, 1);
8094 emit_alignment (acfg, 4);
8096 emit_label (acfg, symbol);
8097 emit_string (acfg, name);
8100 /* Emit the globals table */
8101 sprintf (symbol, "globals");
8102 emit_section_change (acfg, ".data", 0);
8103 /* This is not a global, since it is accessed by the init function */
8104 emit_alignment (acfg, 8);
8105 emit_label (acfg, symbol);
8107 sprintf (symbol, "%sglobals_hash", acfg->temp_prefix);
8108 emit_pointer (acfg, symbol);
8110 for (i = 0; i < acfg->globals->len; ++i) {
8111 char *name = g_ptr_array_index (acfg->globals, i);
8113 sprintf (symbol, "name_%d", i);
8114 emit_pointer (acfg, symbol);
8116 sprintf (symbol, "%s", name);
8117 emit_pointer (acfg, symbol);
8119 /* Null terminate the table */
8120 emit_int32 (acfg, 0);
8121 emit_int32 (acfg, 0);
8125 emit_autoreg (MonoAotCompile *acfg)
8130 * Emit a function into the .ctor section which will be called by the ELF
8131 * loader to register this module with the runtime.
8133 if (! (!acfg->use_bin_writer && acfg->aot_opts.static_link && acfg->aot_opts.autoreg))
8136 symbol = g_strdup_printf ("_%s_autoreg", acfg->static_linking_symbol);
8138 arch_emit_autoreg (acfg, symbol);
8144 emit_mem_end (MonoAotCompile *acfg)
8148 sprintf (symbol, "mem_end");
8149 emit_section_change (acfg, ".text", 1);
8150 emit_alignment (acfg, 8);
8151 emit_label (acfg, symbol);
8155 * Emit a structure containing all the information not stored elsewhere.
8158 emit_file_info (MonoAotCompile *acfg)
8163 const char *gc_name;
8166 emit_string_symbol (acfg, "assembly_guid" , acfg->image->guid);
8168 if (acfg->aot_opts.bind_to_runtime_version) {
8169 build_info = mono_get_runtime_build_info ();
8170 emit_string_symbol (acfg, "runtime_version", build_info);
8171 g_free (build_info);
8173 emit_string_symbol (acfg, "runtime_version", "");
8176 /* Emit a string holding the assembly name */
8177 emit_string_symbol (acfg, "assembly_name", acfg->image->assembly->aname.name);
8180 * The managed allocators are GC specific, so can't use an AOT image created by one GC
8183 gc_name = mono_gc_get_gc_name ();
8184 gc_name_offset = add_to_blob (acfg, (guint8*)gc_name, strlen (gc_name) + 1);
8186 sprintf (symbol, "%smono_aot_file_info", acfg->user_symbol_prefix);
8187 emit_section_change (acfg, ".data", 0);
8188 emit_alignment (acfg, 8);
8189 emit_label (acfg, symbol);
8190 if (!acfg->aot_opts.static_link)
8191 emit_global (acfg, symbol, FALSE);
8193 /* The data emitted here must match MonoAotFileInfo. */
8195 emit_int32 (acfg, MONO_AOT_FILE_VERSION);
8196 emit_int32 (acfg, 0);
8199 * We emit pointers to our data structures instead of emitting global symbols which
8200 * point to them, to reduce the number of globals, and because using globals leads to
8201 * various problems (i.e. arm/thumb).
8203 emit_pointer (acfg, acfg->got_symbol);
8204 emit_pointer (acfg, acfg->methods_symbol);
8207 * Emit a reference to the mono_eh_frame table created by our modified LLVM compiler.
8209 emit_pointer (acfg, "mono_eh_frame");
8211 emit_pointer (acfg, NULL);
8213 emit_pointer (acfg, "blob");
8214 emit_pointer (acfg, "class_name_table");
8215 emit_pointer (acfg, "class_info_offsets");
8216 emit_pointer (acfg, "method_info_offsets");
8217 emit_pointer (acfg, "ex_info_offsets");
8218 emit_pointer (acfg, "code_offsets");
8219 if (acfg->direct_method_addresses)
8220 emit_pointer (acfg, "method_addresses");
8222 emit_pointer (acfg, NULL);
8223 emit_pointer (acfg, "extra_method_info_offsets");
8224 emit_pointer (acfg, "extra_method_table");
8225 emit_pointer (acfg, "got_info_offsets");
8226 emit_pointer (acfg, "methods_end");
8227 emit_pointer (acfg, "unwind_info");
8228 emit_pointer (acfg, "mem_end");
8229 emit_pointer (acfg, "image_table");
8230 emit_pointer (acfg, "plt");
8231 emit_pointer (acfg, "plt_end");
8232 emit_pointer (acfg, "assembly_guid");
8233 emit_pointer (acfg, "runtime_version");
8234 if (acfg->num_trampoline_got_entries) {
8235 emit_pointer (acfg, "specific_trampolines");
8236 emit_pointer (acfg, "static_rgctx_trampolines");
8237 emit_pointer (acfg, "imt_thunks");
8238 emit_pointer (acfg, "gsharedvt_arg_trampolines");
8240 emit_pointer (acfg, NULL);
8241 emit_pointer (acfg, NULL);
8242 emit_pointer (acfg, NULL);
8243 emit_pointer (acfg, NULL);
8245 if (acfg->thumb_mixed) {
8246 emit_pointer (acfg, "thumb_end");
8248 emit_pointer (acfg, NULL);
8250 if (acfg->aot_opts.static_link) {
8251 emit_pointer (acfg, "globals");
8253 emit_pointer (acfg, NULL);
8255 emit_pointer (acfg, "assembly_name");
8256 emit_pointer (acfg, "unbox_trampolines");
8257 emit_pointer (acfg, "unbox_trampolines_end");
8259 emit_int32 (acfg, acfg->plt_got_offset_base);
8260 emit_int32 (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
8261 emit_int32 (acfg, acfg->plt_offset);
8262 emit_int32 (acfg, acfg->nmethods);
8263 emit_int32 (acfg, acfg->flags);
8264 emit_int32 (acfg, acfg->opts);
8265 emit_int32 (acfg, acfg->simd_opts);
8266 emit_int32 (acfg, gc_name_offset);
8268 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
8269 emit_int32 (acfg, acfg->num_trampolines [i]);
8270 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
8271 emit_int32 (acfg, acfg->trampoline_got_offset_base [i]);
8272 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
8273 emit_int32 (acfg, acfg->trampoline_size [i]);
8274 emit_int32 (acfg, acfg->aot_opts.nrgctx_fetch_trampolines);
8276 #if defined (TARGET_ARM) && defined (TARGET_MACH)
8281 memset (&t, 0, sizeof (MonoType));
8282 t.type = MONO_TYPE_R8;
8283 mono_type_size (&t, &align);
8284 emit_int32 (acfg, align);
8286 memset (&t, 0, sizeof (MonoType));
8287 t.type = MONO_TYPE_I8;
8288 mono_type_size (&t, &align);
8290 emit_int32 (acfg, align);
8293 emit_int32 (acfg, MONO_ABI_ALIGNOF (double));
8294 emit_int32 (acfg, MONO_ABI_ALIGNOF (gint64));
8296 emit_int32 (acfg, MONO_TRAMPOLINE_NUM);
8297 emit_int32 (acfg, acfg->tramp_page_size);
8298 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
8299 emit_int32 (acfg, acfg->tramp_page_code_offsets [i]);
8301 if (acfg->aot_opts.static_link) {
8305 * Emit a global symbol which can be passed by an embedding app to
8306 * mono_aot_register_module (). The symbol points to a pointer to the the file info
8309 sprintf (symbol, "%smono_aot_module_%s_info", acfg->user_symbol_prefix, acfg->image->assembly->aname.name);
8311 /* Get rid of characters which cannot occur in symbols */
8313 for (p = symbol; *p; ++p) {
8314 if (!(isalnum (*p) || *p == '_'))
8317 acfg->static_linking_symbol = g_strdup (symbol);
8318 emit_global_inner (acfg, symbol, FALSE);
8319 emit_alignment (acfg, sizeof (gpointer));
8320 emit_label (acfg, symbol);
8321 emit_pointer_2 (acfg, acfg->user_symbol_prefix, "mono_aot_file_info");
8326 emit_blob (MonoAotCompile *acfg)
8330 sprintf (symbol, "blob");
8331 emit_section_change (acfg, RODATA_SECT, 1);
8332 emit_alignment (acfg, 8);
8333 emit_label (acfg, symbol);
8335 emit_bytes (acfg, (guint8*)acfg->blob.data, acfg->blob.index);
8339 emit_objc_selectors (MonoAotCompile *acfg)
8343 if (!acfg->objc_selectors || acfg->objc_selectors->len == 0)
8348 * cat > foo.m << EOF
8351 * return @selector(print:);
8356 img_writer_emit_unset_mode (acfg->w);
8357 g_assert (acfg->fp);
8358 fprintf (acfg->fp, ".section __DATA,__objc_selrefs,literal_pointers,no_dead_strip\n");
8359 fprintf (acfg->fp, ".align 3\n");
8360 for (i = 0; i < acfg->objc_selectors->len; ++i) {
8361 fprintf (acfg->fp, "L_OBJC_SELECTOR_REFERENCES_%d:\n", i);
8362 fprintf (acfg->fp, ".long L_OBJC_METH_VAR_NAME_%d\n", i);
8364 fprintf (acfg->fp, ".section __TEXT,__cstring,cstring_literals\n");
8365 for (i = 0; i < acfg->objc_selectors->len; ++i) {
8366 fprintf (acfg->fp, "L_OBJC_METH_VAR_NAME_%d:\n", i);
8367 fprintf (acfg->fp, ".asciz \"%s\"\n", (char*)g_ptr_array_index (acfg->objc_selectors, i));
8370 fprintf (acfg->fp, ".section __DATA,__objc_imageinfo,regular,no_dead_strip\n");
8371 fprintf (acfg->fp, ".align 3\n");
8372 fprintf (acfg->fp, "L_OBJC_IMAGE_INFO:\n");
8373 fprintf (acfg->fp, ".long 0\n");
8374 fprintf (acfg->fp, ".long 16\n");
8378 emit_dwarf_info (MonoAotCompile *acfg)
8380 #ifdef EMIT_DWARF_INFO
8384 /* DIEs for methods */
8385 for (i = 0; i < acfg->nmethods; ++i) {
8386 MonoCompile *cfg = acfg->cfgs [i];
8391 // FIXME: LLVM doesn't define .Lme_...
8392 if (cfg->compile_llvm)
8395 sprintf (symbol2, "%sme_%x", acfg->temp_prefix, i);
8397 mono_dwarf_writer_emit_method (acfg->dwarf, cfg, cfg->method, cfg->asm_symbol, symbol2, 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 ()));
8403 collect_methods (MonoAotCompile *acfg)
8406 MonoImage *image = acfg->image;
8408 /* Collect methods */
8409 for (i = 0; i < image->tables [MONO_TABLE_METHOD].rows; ++i) {
8411 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
8413 method = mono_get_method (acfg->image, token, NULL);
8416 aot_printerrf (acfg, "Failed to load method 0x%x from '%s'.\n", token, image->name);
8417 aot_printerrf (acfg, "Run with MONO_LOG_LEVEL=debug for more information.\n");
8421 /* Load all methods eagerly to skip the slower lazy loading code */
8422 mono_class_setup_methods (method->klass);
8424 if (acfg->aot_opts.full_aot && method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
8425 /* Compile the wrapper instead */
8426 /* We do this here instead of add_wrappers () because it is easy to do it here */
8427 MonoMethod *wrapper = mono_marshal_get_native_wrapper (method, check_for_pending_exc, TRUE);
8431 /* FIXME: Some mscorlib methods don't have debug info */
8433 if (acfg->aot_opts.soft_debug && !method->wrapper_type) {
8434 if (!((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
8435 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
8436 (method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
8437 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))) {
8438 if (!mono_debug_lookup_method (method)) {
8439 fprintf (stderr, "Method %s has no debug info, probably the .mdb file for the assembly is missing.\n", mono_method_full_name (method, TRUE));
8446 /* Since we add the normal methods first, their index will be equal to their zero based token index */
8447 add_method_with_index (acfg, method, i, FALSE);
8448 acfg->method_index ++;
8451 /* gsharedvt methods */
8452 for (mindex = 0; mindex < image->tables [MONO_TABLE_METHOD].rows; ++mindex) {
8454 guint32 token = MONO_TOKEN_METHOD_DEF | (mindex + 1);
8456 if (!(acfg->opts & MONO_OPT_GSHAREDVT))
8459 method = mono_get_method (acfg->image, token, NULL);
8463 if (strcmp (method->name, "gshared2"))
8467 if (!strstr (method->klass->image->name, "mini"))
8470 if (method->is_generic || method->klass->generic_container) {
8471 MonoMethod *gshared;
8473 gshared = mini_get_shared_method_full (method, TRUE, TRUE);
8474 add_extra_method (acfg, gshared);
8478 add_generic_instances (acfg);
8480 if (acfg->aot_opts.full_aot)
8481 add_wrappers (acfg);
8486 compile_methods (MonoAotCompile *acfg)
8490 if (acfg->aot_opts.nthreads > 0) {
8495 gpointer *user_data;
8496 MonoMethod **methods;
8498 methods_len = acfg->methods->len;
8500 len = acfg->methods->len / acfg->aot_opts.nthreads;
8503 * Partition the list of methods into fragments, and hand it to threads to
8506 threads = g_ptr_array_new ();
8507 /* Make a copy since acfg->methods is modified by compile_method () */
8508 methods = g_new0 (MonoMethod*, methods_len);
8509 //memcpy (methods, g_ptr_array_index (acfg->methods, 0), sizeof (MonoMethod*) * methods_len);
8510 for (i = 0; i < methods_len; ++i)
8511 methods [i] = g_ptr_array_index (acfg->methods, i);
8513 while (i < methods_len) {
8514 frag = g_ptr_array_new ();
8515 for (j = 0; j < len; ++j) {
8516 if (i < methods_len) {
8517 g_ptr_array_add (frag, methods [i]);
8522 user_data = g_new0 (gpointer, 3);
8523 user_data [0] = mono_domain_get ();
8524 user_data [1] = acfg;
8525 user_data [2] = frag;
8527 handle = mono_threads_create_thread ((gpointer)compile_thread_main, user_data, 0, 0, NULL);
8528 g_ptr_array_add (threads, handle);
8532 for (i = 0; i < threads->len; ++i) {
8533 WaitForSingleObjectEx (g_ptr_array_index (threads, i), INFINITE, FALSE);
8539 /* Compile methods added by compile_method () or all methods if nthreads == 0 */
8540 for (i = methods_len; i < acfg->methods->len; ++i) {
8541 /* This can new methods to acfg->methods */
8542 compile_method (acfg, g_ptr_array_index (acfg->methods, i));
8547 compile_asm (MonoAotCompile *acfg)
8549 char *command, *objfile;
8550 char *outfile_name, *tmp_outfile_name;
8551 const char *tool_prefix = acfg->aot_opts.tool_prefix ? acfg->aot_opts.tool_prefix : "";
8553 #if defined(TARGET_AMD64) && !defined(TARGET_MACH)
8554 #define AS_OPTIONS "--64"
8555 #elif defined(TARGET_POWERPC64)
8556 #define AS_OPTIONS "-a64 -mppc64"
8557 #define LD_OPTIONS "-m elf64ppc"
8558 #elif defined(sparc) && SIZEOF_VOID_P == 8
8559 #define AS_OPTIONS "-xarch=v9"
8560 #elif defined(TARGET_X86) && defined(TARGET_MACH) && !defined(__native_client_codegen__)
8561 #define AS_OPTIONS "-arch i386"
8563 #define AS_OPTIONS ""
8566 #ifdef __native_client_codegen__
8567 #if defined(TARGET_AMD64)
8568 #define AS_NAME "nacl64-as"
8570 #define AS_NAME "nacl-as"
8572 #elif defined(TARGET_OSX)
8573 #define AS_NAME "clang -c -x assembler"
8575 #define AS_NAME "as"
8579 #define LD_OPTIONS ""
8583 #define LD_NAME "ld -shared -G"
8584 #elif defined(__ppc__) && defined(TARGET_MACH)
8585 #define LD_NAME "gcc -dynamiclib"
8586 #elif defined(TARGET_AMD64) && defined(TARGET_MACH)
8587 #define LD_NAME "clang --shared"
8588 #elif defined(HOST_WIN32)
8589 #define LD_NAME "gcc -shared --dll"
8590 #elif defined(TARGET_X86) && defined(TARGET_MACH) && !defined(__native_client_codegen__)
8591 #define LD_NAME "clang -m32 -dynamiclib"
8594 if (acfg->aot_opts.asm_only) {
8595 aot_printf (acfg, "Output file: '%s'.\n", acfg->tmpfname);
8596 if (acfg->aot_opts.static_link)
8597 aot_printf (acfg, "Linking symbol: '%s'.\n", acfg->static_linking_symbol);
8601 if (acfg->aot_opts.static_link) {
8602 if (acfg->aot_opts.outfile)
8603 objfile = g_strdup_printf ("%s", acfg->aot_opts.outfile);
8605 objfile = g_strdup_printf ("%s.o", acfg->image->name);
8607 objfile = g_strdup_printf ("%s.o", acfg->tmpfname);
8609 command = g_strdup_printf ("%s%s %s %s -o %s %s", tool_prefix, AS_NAME, AS_OPTIONS, acfg->as_args ? acfg->as_args->str : "", objfile, acfg->tmpfname);
8610 aot_printf (acfg, "Executing the native assembler: %s\n", command);
8611 if (system (command) != 0) {
8619 if (acfg->aot_opts.static_link) {
8620 aot_printf (acfg, "Output file: '%s'.\n", objfile);
8621 aot_printf (acfg, "Linking symbol: '%s'.\n", acfg->static_linking_symbol);
8626 if (acfg->aot_opts.outfile)
8627 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
8629 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
8631 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
8634 command = g_strdup_printf ("%s -o %s %s.o", LD_NAME, tmp_outfile_name, acfg->tmpfname);
8636 command = g_strdup_printf ("%sld %s -shared -o %s %s.o", tool_prefix, LD_OPTIONS, tmp_outfile_name, acfg->tmpfname);
8638 aot_printf (acfg, "Executing the native linker: %s\n", command);
8639 if (system (command) != 0) {
8640 g_free (tmp_outfile_name);
8641 g_free (outfile_name);
8649 /*com = g_strdup_printf ("strip --strip-unneeded %s%s", acfg->image->name, SHARED_EXT);
8650 printf ("Stripping the binary: %s\n", com);
8654 #if defined(TARGET_ARM) && !defined(TARGET_MACH)
8656 * gas generates 'mapping symbols' each time code and data is mixed, which
8657 * happens a lot in emit_and_reloc_code (), so we need to get rid of them.
8659 command = g_strdup_printf ("%sstrip --strip-symbol=\\$a --strip-symbol=\\$d %s", tool_prefix, tmp_outfile_name);
8660 aot_printf (acfg, "Stripping the binary: %s\n", command);
8661 if (system (command) != 0) {
8662 g_free (tmp_outfile_name);
8663 g_free (outfile_name);
8670 rename (tmp_outfile_name, outfile_name);
8672 #if defined(TARGET_MACH)
8673 command = g_strdup_printf ("dsymutil %s", outfile_name);
8674 aot_printf (acfg, "Executing dsymutil: %s\n", command);
8675 if (system (command) != 0) {
8680 if (!acfg->aot_opts.save_temps)
8683 g_free (tmp_outfile_name);
8684 g_free (outfile_name);
8687 if (acfg->aot_opts.save_temps)
8688 aot_printf (acfg, "Retained input file.\n");
8690 unlink (acfg->tmpfname);
8695 static MonoAotCompile*
8696 acfg_create (MonoAssembly *ass, guint32 opts)
8698 MonoImage *image = ass->image;
8699 MonoAotCompile *acfg;
8702 acfg = g_new0 (MonoAotCompile, 1);
8703 acfg->methods = g_ptr_array_new ();
8704 acfg->method_indexes = g_hash_table_new (NULL, NULL);
8705 acfg->method_depth = g_hash_table_new (NULL, NULL);
8706 acfg->plt_offset_to_entry = g_hash_table_new (NULL, NULL);
8707 acfg->patch_to_plt_entry = g_new0 (GHashTable*, MONO_PATCH_INFO_NUM);
8708 acfg->patch_to_got_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
8709 acfg->patch_to_got_offset_by_type = g_new0 (GHashTable*, MONO_PATCH_INFO_NUM);
8710 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i)
8711 acfg->patch_to_got_offset_by_type [i] = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
8712 acfg->got_patches = g_ptr_array_new ();
8713 acfg->method_to_cfg = g_hash_table_new (NULL, NULL);
8714 acfg->token_info_hash = g_hash_table_new_full (NULL, NULL, NULL, NULL);
8715 acfg->method_to_pinvoke_import = g_hash_table_new_full (NULL, NULL, NULL, g_free);
8716 acfg->image_hash = g_hash_table_new (NULL, NULL);
8717 acfg->image_table = g_ptr_array_new ();
8718 acfg->globals = g_ptr_array_new ();
8719 acfg->image = image;
8721 /* TODO: Write out set of SIMD instructions used, rather than just those available */
8722 acfg->simd_opts = mono_arch_cpu_enumerate_simd_versions ();
8723 acfg->mempool = mono_mempool_new ();
8724 acfg->extra_methods = g_ptr_array_new ();
8725 acfg->unwind_info_offsets = g_hash_table_new (NULL, NULL);
8726 acfg->unwind_ops = g_ptr_array_new ();
8727 acfg->method_label_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
8728 acfg->method_order = g_ptr_array_new ();
8729 acfg->export_names = g_hash_table_new (NULL, NULL);
8730 acfg->klass_blob_hash = g_hash_table_new (NULL, NULL);
8731 acfg->method_blob_hash = g_hash_table_new (NULL, NULL);
8732 acfg->plt_entry_debug_sym_cache = g_hash_table_new (g_str_hash, g_str_equal);
8733 mono_mutex_init_recursive (&acfg->mutex);
8739 acfg_free (MonoAotCompile *acfg)
8743 img_writer_destroy (acfg->w);
8744 for (i = 0; i < acfg->nmethods; ++i)
8746 g_free (acfg->cfgs [i]);
8747 g_free (acfg->cfgs);
8748 g_free (acfg->static_linking_symbol);
8749 g_free (acfg->got_symbol);
8750 g_free (acfg->plt_symbol);
8751 g_ptr_array_free (acfg->methods, TRUE);
8752 g_ptr_array_free (acfg->got_patches, TRUE);
8753 g_ptr_array_free (acfg->image_table, TRUE);
8754 g_ptr_array_free (acfg->globals, TRUE);
8755 g_ptr_array_free (acfg->unwind_ops, TRUE);
8756 g_hash_table_destroy (acfg->method_indexes);
8757 g_hash_table_destroy (acfg->method_depth);
8758 g_hash_table_destroy (acfg->plt_offset_to_entry);
8759 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i) {
8760 if (acfg->patch_to_plt_entry [i])
8761 g_hash_table_destroy (acfg->patch_to_plt_entry [i]);
8763 g_free (acfg->patch_to_plt_entry);
8764 g_hash_table_destroy (acfg->patch_to_got_offset);
8765 g_hash_table_destroy (acfg->method_to_cfg);
8766 g_hash_table_destroy (acfg->token_info_hash);
8767 g_hash_table_destroy (acfg->method_to_pinvoke_import);
8768 g_hash_table_destroy (acfg->image_hash);
8769 g_hash_table_destroy (acfg->unwind_info_offsets);
8770 g_hash_table_destroy (acfg->method_label_hash);
8771 g_hash_table_destroy (acfg->export_names);
8772 g_hash_table_destroy (acfg->plt_entry_debug_sym_cache);
8773 g_hash_table_destroy (acfg->klass_blob_hash);
8774 g_hash_table_destroy (acfg->method_blob_hash);
8775 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i)
8776 g_hash_table_destroy (acfg->patch_to_got_offset_by_type [i]);
8777 g_free (acfg->patch_to_got_offset_by_type);
8778 mono_mempool_destroy (acfg->mempool);
8783 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
8785 MonoImage *image = ass->image;
8786 int i, res, all_sizes;
8787 MonoAotCompile *acfg;
8788 char *outfile_name, *tmp_outfile_name, *p;
8789 char llvm_stats_msg [256];
8793 acfg = acfg_create (ass, opts);
8795 memset (&acfg->aot_opts, 0, sizeof (acfg->aot_opts));
8796 acfg->aot_opts.write_symbols = TRUE;
8797 acfg->aot_opts.ntrampolines = 1024;
8798 acfg->aot_opts.nrgctx_trampolines = 1024;
8799 acfg->aot_opts.nimt_trampolines = 128;
8800 acfg->aot_opts.nrgctx_fetch_trampolines = 128;
8801 acfg->aot_opts.ngsharedvt_arg_trampolines = 128;
8802 acfg->aot_opts.llvm_path = g_strdup ("");
8804 acfg->aot_opts.use_trampolines_page = TRUE;
8807 mono_aot_parse_options (aot_options, &acfg->aot_opts);
8809 if (acfg->aot_opts.logfile) {
8810 acfg->logfile = fopen (acfg->aot_opts.logfile, "a+");
8813 if (acfg->aot_opts.static_link)
8814 acfg->aot_opts.autoreg = TRUE;
8816 //acfg->aot_opts.print_skipped_methods = TRUE;
8818 #if !defined(MONO_ARCH_GSHAREDVT_SUPPORTED) || !defined(ENABLE_GSHAREDVT)
8819 if (opts & MONO_OPT_GSHAREDVT) {
8820 aot_printerrf (acfg, "-O=gsharedvt not supported on this platform.\n");
8825 aot_printf (acfg, "Mono Ahead of Time compiler - compiling assembly %s\n", image->name);
8827 #ifndef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
8828 if (acfg->aot_opts.full_aot) {
8829 aot_printerrf (acfg, "--aot=full is not supported on this platform.\n");
8834 if (acfg->aot_opts.direct_pinvoke && !acfg->aot_opts.static_link) {
8835 aot_printerrf (acfg, "The 'direct-pinvoke' AOT option also requires the 'static' AOT option.\n");
8839 if (acfg->aot_opts.static_link)
8840 acfg->aot_opts.asm_writer = TRUE;
8842 if (acfg->aot_opts.soft_debug) {
8843 MonoDebugOptions *opt = mini_get_debug_options ();
8845 opt->mdb_optimizations = TRUE;
8846 opt->gen_seq_points_debug_data = TRUE;
8848 if (!mono_debug_enabled ()) {
8849 aot_printerrf (acfg, "The soft-debug AOT option requires the --debug option.\n");
8852 acfg->flags |= MONO_AOT_FILE_FLAG_DEBUG;
8855 if (mono_use_llvm || acfg->aot_opts.llvm) {
8857 acfg->aot_opts.asm_writer = TRUE;
8858 acfg->flags |= MONO_AOT_FILE_FLAG_WITH_LLVM;
8860 if (acfg->aot_opts.soft_debug) {
8861 aot_printerrf (acfg, "The 'soft-debug' option is not supported when compiling with LLVM.\n");
8868 if (acfg->aot_opts.full_aot)
8869 acfg->flags |= MONO_AOT_FILE_FLAG_FULL_AOT;
8871 if (acfg->aot_opts.instances_logfile_path) {
8872 acfg->instances_logfile = fopen (acfg->aot_opts.instances_logfile_path, "w");
8873 if (!acfg->instances_logfile) {
8874 aot_printerrf (acfg, "Unable to create logfile: '%s'.\n", acfg->aot_opts.instances_logfile_path);
8879 load_profile_files (acfg);
8881 acfg->num_trampolines [MONO_AOT_TRAMP_SPECIFIC] = acfg->aot_opts.full_aot ? acfg->aot_opts.ntrampolines : 0;
8882 #ifdef MONO_ARCH_GSHARED_SUPPORTED
8883 acfg->num_trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = acfg->aot_opts.full_aot ? acfg->aot_opts.nrgctx_trampolines : 0;
8885 acfg->num_trampolines [MONO_AOT_TRAMP_IMT_THUNK] = acfg->aot_opts.full_aot ? acfg->aot_opts.nimt_trampolines : 0;
8886 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
8887 if (acfg->opts & MONO_OPT_GSHAREDVT)
8888 acfg->num_trampolines [MONO_AOT_TRAMP_GSHAREDVT_ARG] = acfg->aot_opts.full_aot ? acfg->aot_opts.ngsharedvt_arg_trampolines : 0;
8891 acfg->temp_prefix = img_writer_get_temp_label_prefix (NULL);
8895 acfg->got_symbol_base = g_strdup_printf ("mono_aot_%s_got", acfg->image->assembly->aname.name);
8896 acfg->plt_symbol = g_strdup_printf ("%smono_aot_%s_plt", acfg->llvm_label_prefix, acfg->image->assembly->aname.name);
8897 acfg->assembly_name_sym = g_strdup (acfg->image->assembly->aname.name);
8899 /* Get rid of characters which cannot occur in symbols */
8900 for (p = acfg->got_symbol_base; *p; ++p) {
8901 if (!(isalnum (*p) || *p == '_'))
8904 for (p = acfg->plt_symbol; *p; ++p) {
8905 if (!(isalnum (*p) || *p == '_'))
8908 for (p = acfg->assembly_name_sym; *p; ++p) {
8909 if (!(isalnum (*p) || *p == '_'))
8913 acfg->method_index = 1;
8917 if (acfg->aot_opts.full_aot)
8918 mono_set_partial_sharing_supported (TRUE);
8921 res = collect_methods (acfg);
8925 acfg->cfgs_size = acfg->methods->len + 32;
8926 acfg->cfgs = g_new0 (MonoCompile*, acfg->cfgs_size);
8928 /* PLT offset 0 is reserved for the PLT trampoline */
8929 acfg->plt_offset = 1;
8934 mono_llvm_create_aot_module (acfg->got_symbol_base);
8938 /* GOT offset 0 is reserved for the address of the current assembly */
8942 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
8943 ji->type = MONO_PATCH_INFO_IMAGE;
8944 ji->data.image = acfg->image;
8946 get_got_offset (acfg, ji);
8948 /* Slot 1 is reserved for the mscorlib got addr */
8949 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
8950 ji->type = MONO_PATCH_INFO_MSCORLIB_GOT_ADDR;
8951 get_got_offset (acfg, ji);
8953 /* This is very common */
8954 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
8955 ji->type = MONO_PATCH_INFO_GC_CARD_TABLE_ADDR;
8956 get_got_offset (acfg, ji);
8958 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
8959 ji->type = MONO_PATCH_INFO_JIT_TLS_ID;
8960 get_got_offset (acfg, ji);
8965 compile_methods (acfg);
8969 acfg->stats.jit_time = TV_ELAPSED (atv, btv);
8977 if (acfg->aot_opts.asm_only) {
8978 if (acfg->aot_opts.outfile) {
8979 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
8980 acfg->tmpbasename = g_strdup (acfg->tmpfname);
8982 acfg->tmpbasename = g_strdup_printf ("%s", acfg->image->name);
8983 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->tmpbasename);
8986 acfg->tmpbasename = g_strdup_printf ("%s", "temp");
8987 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->tmpbasename);
8990 res = emit_llvm_file (acfg);
8996 if (!acfg->aot_opts.asm_only && !acfg->aot_opts.asm_writer && bin_writer_supported ()) {
8997 if (acfg->aot_opts.outfile)
8998 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
9000 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
9003 * Can't use g_file_open_tmp () as it will be deleted at exit, and
9004 * it might be in another file system so the rename () won't work.
9006 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
9008 acfg->fp = fopen (tmp_outfile_name, "w");
9010 aot_printf (acfg, "Unable to create temporary file '%s': %s\n", tmp_outfile_name, strerror (errno));
9014 acfg->w = img_writer_create (acfg->fp, TRUE);
9015 acfg->use_bin_writer = TRUE;
9018 /* Append to the .s file created by llvm */
9019 /* FIXME: Use multiple files instead */
9020 acfg->fp = fopen (acfg->tmpfname, "a+");
9022 if (acfg->aot_opts.asm_only) {
9023 if (acfg->aot_opts.outfile)
9024 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
9026 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
9027 acfg->fp = fopen (acfg->tmpfname, "w+");
9029 int i = g_file_open_tmp ("mono_aot_XXXXXX", &acfg->tmpfname, NULL);
9030 acfg->fp = fdopen (i, "w+");
9033 if (acfg->fp == 0) {
9034 aot_printerrf (acfg, "Unable to open file '%s': %s\n", acfg->tmpfname, strerror (errno));
9037 acfg->w = img_writer_create (acfg->fp, FALSE);
9039 tmp_outfile_name = NULL;
9040 outfile_name = NULL;
9043 acfg->got_symbol = g_strdup_printf ("%s%s", acfg->llvm_label_prefix, acfg->got_symbol_base);
9045 /* Compute symbols for methods */
9046 for (i = 0; i < acfg->nmethods; ++i) {
9047 if (acfg->cfgs [i]) {
9048 MonoCompile *cfg = acfg->cfgs [i];
9049 int method_index = get_method_index (acfg, cfg->orig_method);
9051 if (COMPILE_LLVM (cfg))
9052 cfg->asm_symbol = g_strdup_printf ("%s%s", acfg->llvm_label_prefix, cfg->llvm_method_name);
9053 else if (acfg->global_symbols)
9054 cfg->asm_symbol = get_debug_sym (cfg->method, "", acfg->method_label_hash);
9056 cfg->asm_symbol = g_strdup_printf ("%s%sm_%x", acfg->temp_prefix, acfg->llvm_label_prefix, method_index);
9060 if (acfg->aot_opts.dwarf_debug && acfg->aot_opts.asm_only && acfg->aot_opts.gnu_asm) {
9062 * CLANG supports GAS .file/.loc directives, so emit line number information this way
9063 * FIXME: CLANG only emits line number info for .loc directives followed by assembly, not
9066 //acfg->gas_line_numbers = TRUE;
9069 if (!acfg->aot_opts.nodebug || acfg->aot_opts.dwarf_debug) {
9070 if (acfg->aot_opts.dwarf_debug && !mono_debug_enabled ()) {
9071 aot_printerrf (acfg, "The dwarf AOT option requires the --debug option.\n");
9074 acfg->dwarf = mono_dwarf_writer_create (acfg->w, NULL, 0, FALSE, !acfg->gas_line_numbers);
9077 img_writer_emit_start (acfg->w);
9080 mono_dwarf_writer_emit_base_info (acfg->dwarf, g_path_get_basename (acfg->image->name), mono_unwind_get_cie_program ());
9082 if (acfg->thumb_mixed) {
9085 * This global symbol marks the end of THUMB code, and the beginning of ARM
9086 * code generated by our JIT.
9088 sprintf (symbol, "thumb_end");
9089 emit_section_change (acfg, ".text", 0);
9090 emit_alignment (acfg, 8);
9091 emit_label (acfg, symbol);
9092 emit_zero_bytes (acfg, 16);
9094 fprintf (acfg->fp, ".arm\n");
9101 emit_extra_methods (acfg);
9103 emit_trampolines (acfg);
9105 emit_class_name_table (acfg);
9107 emit_got_info (acfg);
9109 emit_exception_info (acfg);
9111 emit_unwind_info (acfg);
9113 emit_class_info (acfg);
9117 emit_image_table (acfg);
9121 emit_file_info (acfg);
9125 emit_objc_selectors (acfg);
9127 emit_globals (acfg);
9129 emit_autoreg (acfg);
9132 emit_dwarf_info (acfg);
9133 mono_dwarf_writer_close (acfg->dwarf);
9136 emit_mem_end (acfg);
9138 if (acfg->need_pt_gnu_stack) {
9139 /* This is required so the .so doesn't have an executable stack */
9140 /* The bin writer already emits this */
9141 if (!acfg->use_bin_writer)
9142 fprintf (acfg->fp, "\n.section .note.GNU-stack,\"\",@progbits\n");
9147 acfg->stats.gen_time = TV_ELAPSED (atv, btv);
9150 g_assert (acfg->got_offset <= acfg->final_got_size);
9153 sprintf (llvm_stats_msg, ", LLVM: %d (%d%%)", acfg->stats.llvm_count, acfg->stats.mcount ? (acfg->stats.llvm_count * 100) / acfg->stats.mcount : 100);
9155 strcpy (llvm_stats_msg, "");
9157 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;
9159 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",
9160 acfg->stats.code_size, acfg->stats.code_size * 100 / all_sizes,
9161 acfg->stats.info_size, acfg->stats.info_size * 100 / all_sizes,
9162 acfg->stats.ex_info_size, acfg->stats.ex_info_size * 100 / all_sizes,
9163 acfg->stats.unwind_info_size, acfg->stats.unwind_info_size * 100 / all_sizes,
9164 acfg->stats.class_info_size, acfg->stats.class_info_size * 100 / all_sizes,
9165 acfg->stats.plt_size ? acfg->stats.plt_size : acfg->plt_offset, acfg->stats.plt_size ? acfg->stats.plt_size * 100 / all_sizes : 0,
9166 acfg->stats.got_info_size, acfg->stats.got_info_size * 100 / all_sizes,
9167 acfg->stats.offsets_size, acfg->stats.offsets_size * 100 / all_sizes,
9168 (int)(acfg->got_offset * sizeof (gpointer)));
9169 aot_printf (acfg, "Compiled: %d/%d (%d%%)%s, No GOT slots: %d (%d%%), Direct calls: %d (%d%%)\n",
9170 acfg->stats.ccount, acfg->stats.mcount, acfg->stats.mcount ? (acfg->stats.ccount * 100) / acfg->stats.mcount : 100,
9172 acfg->stats.methods_without_got_slots, acfg->stats.mcount ? (acfg->stats.methods_without_got_slots * 100) / acfg->stats.mcount : 100,
9173 acfg->stats.direct_calls, acfg->stats.all_calls ? (acfg->stats.direct_calls * 100) / acfg->stats.all_calls : 100);
9174 if (acfg->stats.genericcount)
9175 aot_printf (acfg, "%d methods are generic (%d%%)\n", acfg->stats.genericcount, acfg->stats.mcount ? (acfg->stats.genericcount * 100) / acfg->stats.mcount : 100);
9176 if (acfg->stats.abscount)
9177 aot_printf (acfg, "%d methods contain absolute addresses (%d%%)\n", acfg->stats.abscount, acfg->stats.mcount ? (acfg->stats.abscount * 100) / acfg->stats.mcount : 100);
9178 if (acfg->stats.lmfcount)
9179 aot_printf (acfg, "%d methods contain lmf pointers (%d%%)\n", acfg->stats.lmfcount, acfg->stats.mcount ? (acfg->stats.lmfcount * 100) / acfg->stats.mcount : 100);
9180 if (acfg->stats.ocount)
9181 aot_printf (acfg, "%d methods have other problems (%d%%)\n", acfg->stats.ocount, acfg->stats.mcount ? (acfg->stats.ocount * 100) / acfg->stats.mcount : 100);
9184 res = img_writer_emit_writeout (acfg->w);
9189 if (acfg->use_bin_writer) {
9190 int err = rename (tmp_outfile_name, outfile_name);
9193 aot_printf (acfg, "Unable to rename '%s' to '%s': %s\n", tmp_outfile_name, outfile_name, strerror (errno));
9197 res = compile_asm (acfg);
9204 acfg->stats.link_time = TV_ELAPSED (atv, btv);
9206 if (acfg->aot_opts.stats) {
9209 aot_printf (acfg, "GOT slot distribution:\n");
9210 for (i = 0; i < MONO_PATCH_INFO_NONE; ++i)
9211 if (acfg->stats.got_slot_types [i])
9212 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]);
9215 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);
9227 mono_aot_readonly_field_override (MonoClassField *field)
9233 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)