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)
13 /* Remaining AOT-only work:
14 * - optimize the trampolines, generate more code in the arch files.
15 * - make things more consistent with how elf works, for example, use ELF
17 * Remaining generics sharing work:
18 * - optimize the size of the data which is encoded.
19 * - optimize the runtime loading of data:
20 * - the trampoline code calls mono_jit_info_table_find () to find the rgctx,
21 * which loads the debugging+exception handling info for the method. This is a
22 * huge waste of time and code, since the rgctx structure is currently empty.
25 #include <sys/types.h>
46 #include <mono/metadata/tabledefs.h>
47 #include <mono/metadata/class.h>
48 #include <mono/metadata/object.h>
49 #include <mono/metadata/tokentype.h>
50 #include <mono/metadata/appdomain.h>
51 #include <mono/metadata/debug-helpers.h>
52 #include <mono/metadata/assembly.h>
53 #include <mono/metadata/metadata-internals.h>
54 #include <mono/metadata/marshal.h>
55 #include <mono/metadata/gc-internal.h>
56 #include <mono/metadata/monitor.h>
57 #include <mono/metadata/mempool-internals.h>
58 #include <mono/metadata/mono-endian.h>
59 #include <mono/metadata/threads-types.h>
60 #include <mono/utils/mono-logger-internal.h>
61 #include <mono/utils/mono-compiler.h>
62 #include <mono/utils/mono-time.h>
63 #include <mono/utils/mono-mmap.h>
66 #include "image-writer.h"
67 #include "dwarfwriter.h"
69 #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
71 #if defined(__linux__) || defined(__native_client_codegen__)
72 #define RODATA_SECT ".rodata"
74 #define RODATA_SECT ".text"
77 #define TV_DECLARE(name) gint64 name
78 #define TV_GETTIME(tv) tv = mono_100ns_ticks ()
79 #define TV_ELAPSED(start,end) (((end) - (start)) / 10)
82 #define SHARED_EXT ".dll"
83 #elif defined(__ppc__) && defined(__APPLE__)
84 #define SHARED_EXT ".dylib"
85 #elif defined(__APPLE__) && defined(TARGET_X86) && !defined(__native_client_codegen__)
86 #define SHARED_EXT ".dylib"
88 #define SHARED_EXT ".so"
91 #define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
92 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
93 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
95 /* predefined values for static readonly fields without needed to run the .cctor */
96 typedef struct _ReadOnlyValue ReadOnlyValue;
97 struct _ReadOnlyValue {
100 int type; /* to be used later for typechecking to prevent user errors */
109 static ReadOnlyValue *readonly_values = NULL;
111 typedef struct MonoAotOptions {
114 gboolean write_symbols;
115 gboolean metadata_only;
116 gboolean bind_to_runtime_version;
119 gboolean static_link;
124 gboolean log_generics;
125 gboolean direct_pinvoke;
126 gboolean direct_icalls;
129 int nrgctx_trampolines;
130 int nimt_trampolines;
131 gboolean print_skipped_methods;
139 typedef struct MonoAotStats {
140 int ccount, mcount, lmfcount, abscount, gcount, ocount, genericcount;
141 int code_size, info_size, ex_info_size, unwind_info_size, got_size, class_info_size, got_info_size;
142 int methods_without_got_slots, direct_calls, all_calls, llvm_count;
143 int got_slots, offsets_size;
144 int got_slot_types [MONO_PATCH_INFO_NONE];
145 int got_slot_info_sizes [MONO_PATCH_INFO_NONE];
146 int jit_time, gen_time, link_time;
149 typedef struct MonoAotCompile {
152 GHashTable *method_indexes;
153 GHashTable *method_depth;
156 GHashTable *patch_to_plt_entry;
157 GHashTable *plt_offset_to_entry;
158 GHashTable *patch_to_got_offset;
159 GHashTable **patch_to_got_offset_by_type;
160 GPtrArray *got_patches;
161 GHashTable *image_hash;
162 GHashTable *method_to_cfg;
163 GHashTable *token_info_hash;
164 GHashTable *method_to_pinvoke_import;
165 GPtrArray *extra_methods;
166 GPtrArray *image_table;
168 GPtrArray *method_order;
169 GHashTable *export_names;
170 /* Maps MonoClass* -> blob offset */
171 GHashTable *klass_blob_hash;
172 /* Maps MonoMethod* -> blob offset */
173 GHashTable *method_blob_hash;
174 guint32 *plt_got_info_offsets;
175 guint32 got_offset, plt_offset, plt_got_offset_base;
176 guint32 final_got_size;
177 /* Number of GOT entries reserved for trampolines */
178 guint32 num_trampoline_got_entries;
180 guint32 num_trampolines [MONO_AOT_TRAMP_NUM];
181 guint32 trampoline_got_offset_base [MONO_AOT_TRAMP_NUM];
182 guint32 trampoline_size [MONO_AOT_TRAMP_NUM];
184 MonoAotOptions aot_opts;
188 MonoMemPool *mempool;
191 char *static_linking_symbol;
192 CRITICAL_SECTION mutex;
193 gboolean use_bin_writer;
195 MonoDwarfWriter *dwarf;
199 GHashTable *unwind_info_offsets;
200 GPtrArray *unwind_ops;
201 guint32 unwind_info_offset;
202 char *got_symbol_base;
205 GHashTable *method_label_hash;
206 const char *temp_prefix;
207 const char *llvm_label_prefix;
208 guint32 label_generator;
210 MonoAotFileFlags flags;
211 MonoDynamicStream blob;
212 MonoClass **typespec_classes;
215 char *assembly_name_sym;
216 GHashTable *plt_entry_debug_sym_cache;
217 gboolean thumb_mixed, need_no_dead_strip, need_pt_gnu_stack;
218 GHashTable *ginst_hash;
223 char *symbol, *llvm_symbol, *debug_sym;
225 gboolean jit_used, llvm_used;
228 #define mono_acfg_lock(acfg) EnterCriticalSection (&((acfg)->mutex))
229 #define mono_acfg_unlock(acfg) LeaveCriticalSection (&((acfg)->mutex))
231 /* This points to the current acfg in LLVM mode */
232 static MonoAotCompile *llvm_acfg;
234 #ifdef HAVE_ARRAY_ELEM_INIT
235 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
236 #define MSGSTRFIELD1(line) str##line
237 static const struct msgstr_t {
238 #define PATCH_INFO(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
239 #include "patch-info.h"
242 #define PATCH_INFO(a,b) b,
243 #include "patch-info.h"
246 static const gint16 opidx [] = {
247 #define PATCH_INFO(a,b) [MONO_PATCH_INFO_ ## a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
248 #include "patch-info.h"
252 static G_GNUC_UNUSED const char*
253 get_patch_name (int info)
255 return (const char*)&opstr + opidx [info];
259 #define PATCH_INFO(a,b) b,
260 static const char* const
261 patch_types [MONO_PATCH_INFO_NUM + 1] = {
262 #include "patch-info.h"
266 static G_GNUC_UNUSED const char*
267 get_patch_name (int info)
269 return patch_types [info];
275 get_plt_entry_debug_sym (MonoAotCompile *acfg, MonoJumpInfo *ji, GHashTable *cache);
277 /* Wrappers around the image writer functions */
280 emit_section_change (MonoAotCompile *acfg, const char *section_name, int subsection_index)
282 img_writer_emit_section_change (acfg->w, section_name, subsection_index);
286 emit_push_section (MonoAotCompile *acfg, const char *section_name, int subsection)
288 img_writer_emit_push_section (acfg->w, section_name, subsection);
292 emit_pop_section (MonoAotCompile *acfg)
294 img_writer_emit_pop_section (acfg->w);
298 emit_local_symbol (MonoAotCompile *acfg, const char *name, const char *end_label, gboolean func)
300 img_writer_emit_local_symbol (acfg->w, name, end_label, func);
304 emit_label (MonoAotCompile *acfg, const char *name)
306 img_writer_emit_label (acfg->w, name);
310 emit_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
312 img_writer_emit_bytes (acfg->w, buf, size);
316 emit_string (MonoAotCompile *acfg, const char *value)
318 img_writer_emit_string (acfg->w, value);
322 emit_line (MonoAotCompile *acfg)
324 img_writer_emit_line (acfg->w);
328 emit_alignment (MonoAotCompile *acfg, int size)
330 img_writer_emit_alignment (acfg->w, size);
334 emit_pointer_unaligned (MonoAotCompile *acfg, const char *target)
336 img_writer_emit_pointer_unaligned (acfg->w, target);
340 emit_pointer (MonoAotCompile *acfg, const char *target)
342 img_writer_emit_pointer (acfg->w, target);
346 emit_int16 (MonoAotCompile *acfg, int value)
348 img_writer_emit_int16 (acfg->w, value);
352 emit_int32 (MonoAotCompile *acfg, int value)
354 img_writer_emit_int32 (acfg->w, value);
358 emit_symbol_diff (MonoAotCompile *acfg, const char *end, const char* start, int offset)
360 img_writer_emit_symbol_diff (acfg->w, end, start, offset);
364 emit_zero_bytes (MonoAotCompile *acfg, int num)
366 img_writer_emit_zero_bytes (acfg->w, num);
370 emit_byte (MonoAotCompile *acfg, guint8 val)
372 img_writer_emit_byte (acfg->w, val);
375 #ifdef __native_client_codegen__
377 emit_nacl_call_alignment (MonoAotCompile *acfg)
379 img_writer_emit_nacl_call_alignment (acfg->w);
383 static G_GNUC_UNUSED void
384 emit_global_inner (MonoAotCompile *acfg, const char *name, gboolean func)
386 img_writer_emit_global (acfg->w, name, func);
390 emit_global (MonoAotCompile *acfg, const char *name, gboolean func)
392 if (acfg->aot_opts.no_dlsym) {
393 g_ptr_array_add (acfg->globals, g_strdup (name));
394 img_writer_emit_local_symbol (acfg->w, name, NULL, func);
396 img_writer_emit_global (acfg->w, name, func);
401 emit_symbol_size (MonoAotCompile *acfg, const char *name, const char *end_label)
403 img_writer_emit_symbol_size (acfg->w, name, end_label);
407 emit_string_symbol (MonoAotCompile *acfg, const char *name, const char *value)
409 img_writer_emit_section_change (acfg->w, RODATA_SECT, 1);
411 /* On apple, all symbols need to be aligned to avoid warnings from ld */
412 emit_alignment (acfg, 4);
414 img_writer_emit_label (acfg->w, name);
415 img_writer_emit_string (acfg->w, value);
418 static G_GNUC_UNUSED void
419 emit_uleb128 (MonoAotCompile *acfg, guint32 value)
422 guint8 b = value & 0x7f;
424 if (value != 0) /* more bytes to come */
430 static G_GNUC_UNUSED void
431 emit_sleb128 (MonoAotCompile *acfg, gint64 value)
434 gboolean negative = (value < 0);
441 /* the following is unnecessary if the
442 * implementation of >>= uses an arithmetic rather
443 * than logical shift for a signed left operand
447 value |= - ((gint64)1 <<(size - 7));
448 /* sign bit of byte is second high order bit (0x40) */
449 if ((value == 0 && !(byte & 0x40)) ||
450 (value == -1 && (byte & 0x40)))
454 emit_byte (acfg, byte);
458 static G_GNUC_UNUSED void
459 encode_uleb128 (guint32 value, guint8 *buf, guint8 **endbuf)
464 guint8 b = value & 0x7f;
466 if (value != 0) /* more bytes to come */
474 static G_GNUC_UNUSED void
475 encode_sleb128 (gint32 value, guint8 *buf, guint8 **endbuf)
478 gboolean negative = (value < 0);
486 /* the following is unnecessary if the
487 * implementation of >>= uses an arithmetic rather
488 * than logical shift for a signed left operand
492 value |= - (1 <<(size - 7));
493 /* sign bit of byte is second high order bit (0x40) */
494 if ((value == 0 && !(byte & 0x40)) ||
495 (value == -1 && (byte & 0x40)))
505 /* ARCHITECTURE SPECIFIC CODE */
507 #if defined(TARGET_X86) || defined(TARGET_AMD64) || defined(TARGET_ARM) || defined(TARGET_POWERPC)
508 #define EMIT_DWARF_INFO 1
511 #if defined(TARGET_ARM)
512 #define AOT_FUNC_ALIGNMENT 4
514 #define AOT_FUNC_ALIGNMENT 16
516 #if (defined(TARGET_X86) || defined(TARGET_AMD64)) && defined(__native_client_codegen__)
517 #undef AOT_FUNC_ALIGNMENT
518 #define AOT_FUNC_ALIGNMENT 32
521 #if defined(TARGET_POWERPC64) && !defined(__mono_ilp32__)
522 #define PPC_LD_OP "ld"
523 #define PPC_LDX_OP "ldx"
525 #define PPC_LD_OP "lwz"
526 #define PPC_LDX_OP "lwzx"
530 #define AOT_TARGET_STR "AMD64"
535 #define AOT_TARGET_STR "ARM (MACH)"
537 #define AOT_TARGET_STR "ARM (!MACH)"
541 #ifdef TARGET_POWERPC64
542 #ifdef __mono_ilp32__
543 #define AOT_TARGET_STR "POWERPC64 (mono ilp32)"
545 #define AOT_TARGET_STR "POWERPC64 (!mono ilp32)"
548 #ifdef TARGET_POWERPC
549 #ifdef __mono_ilp32__
550 #define AOT_TARGET_STR "POWERPC (mono ilp32)"
552 #define AOT_TARGET_STR "POWERPC (!mono ilp32)"
559 #define AOT_TARGET_STR "X86 (WIN32)"
560 #elif defined(__native_client_codegen__)
561 #define AOT_TARGET_STR "X86 (native client codegen)"
563 #define AOT_TARGET_STR "X86 (!native client codegen)"
567 #ifndef AOT_TARGET_STR
568 #define AOT_TARGET_STR ""
572 arch_init (MonoAotCompile *acfg)
574 acfg->llc_args = g_string_new ("");
575 acfg->as_args = g_string_new ("");
578 * The prefix LLVM likes to put in front of symbol names on darwin.
579 * The mach-os specs require this for globals, but LLVM puts them in front of all
580 * symbols. We need to handle this, since we need to refer to LLVM generated
583 acfg->llvm_label_prefix = "";
586 if (acfg->aot_opts.mtriple && strstr (acfg->aot_opts.mtriple, "darwin")) {
587 g_string_append (acfg->llc_args, "-mattr=+v6");
590 g_string_append (acfg->llc_args, " -mattr=+vfp2,+d16");
591 g_string_append (acfg->as_args, " -mfpu=vfp3");
593 g_string_append (acfg->llc_args, " -soft-float");
596 if (acfg->aot_opts.mtriple && strstr (acfg->aot_opts.mtriple, "thumb"))
597 acfg->thumb_mixed = TRUE;
599 if (acfg->aot_opts.mtriple)
600 mono_arch_set_target (acfg->aot_opts.mtriple);
604 acfg->llvm_label_prefix = "_";
605 acfg->need_no_dead_strip = TRUE;
608 #if defined(__linux__) && !defined(TARGET_ARM)
609 acfg->need_pt_gnu_stack = TRUE;
614 * arch_emit_direct_call:
616 * Emit a direct call to the symbol TARGET. CALL_SIZE is set to the size of the
620 arch_emit_direct_call (MonoAotCompile *acfg, const char *target, int *call_size)
622 #if defined(TARGET_X86) || defined(TARGET_AMD64)
623 /* Need to make sure this is exactly 5 bytes long */
624 if (FALSE && !acfg->use_bin_writer) {
625 img_writer_emit_unset_mode (acfg->w);
626 fprintf (acfg->fp, "call %s\n", target);
628 emit_byte (acfg, '\xe8');
629 emit_symbol_diff (acfg, target, ".", -4);
632 #elif defined(TARGET_ARM)
633 if (acfg->use_bin_writer) {
640 img_writer_emit_reloc (acfg->w, R_ARM_CALL, target, -8);
641 emit_bytes (acfg, buf, 4);
643 img_writer_emit_unset_mode (acfg->w);
644 fprintf (acfg->fp, "bl %s\n", target);
647 #elif defined(TARGET_POWERPC)
648 if (acfg->use_bin_writer) {
649 g_assert_not_reached ();
651 img_writer_emit_unset_mode (acfg->w);
652 fprintf (acfg->fp, "bl %s\n", target);
656 g_assert_not_reached ();
662 * - we use an approach similar to the x86 abi: reserve a register (r30) to hold
664 * - The full-aot trampolines need access to the GOT of mscorlib, so we store
665 * in in the 2. slot of every GOT, and require every method to place the GOT
666 * address in r30, even when it doesn't access the GOT otherwise. This way,
667 * the trampolines can compute the mscorlib GOT address by loading 4(r30).
672 * PPC64 uses function descriptors which greatly complicate all code, since
673 * these are used very inconsistently in the runtime. Some functions like
674 * mono_compile_method () return ftn descriptors, while others like the
675 * trampoline creation functions do not.
676 * We assume that all GOT slots contain function descriptors, and create
677 * descriptors in aot-runtime.c when needed.
678 * The ppc64 abi uses r2 to hold the address of the TOC/GOT, which is loaded
679 * from function descriptors, we could do the same, but it would require
680 * rewriting all the ppc/aot code to handle function descriptors properly.
681 * So instead, we use the same approach as on PPC32.
682 * This is a horrible mess, but fixing it would probably lead to an even bigger
688 * - similar to the PPC32 design, we reserve EBX to hold the GOT pointer.
691 #ifdef MONO_ARCH_AOT_SUPPORTED
693 * arch_emit_got_offset:
695 * The memory pointed to by CODE should hold native code for computing the GOT
696 * address. Emit this code while patching it with the offset between code and
697 * the GOT. CODE_SIZE is set to the number of bytes emitted.
700 arch_emit_got_offset (MonoAotCompile *acfg, guint8 *code, int *code_size)
702 #if defined(TARGET_POWERPC64)
703 g_assert (!acfg->use_bin_writer);
704 img_writer_emit_unset_mode (acfg->w);
706 * The ppc32 code doesn't seem to work on ppc64, the assembler complains about
707 * unsupported relocations. So we store the got address into the .Lgot_addr
708 * symbol which is in the text segment, compute its address, and load it.
710 fprintf (acfg->fp, ".L%d:\n", acfg->label_generator);
711 fprintf (acfg->fp, "lis 0, (.Lgot_addr + 4 - .L%d)@h\n", acfg->label_generator);
712 fprintf (acfg->fp, "ori 0, 0, (.Lgot_addr + 4 - .L%d)@l\n", acfg->label_generator);
713 fprintf (acfg->fp, "add 30, 30, 0\n");
714 fprintf (acfg->fp, "%s 30, 0(30)\n", PPC_LD_OP);
715 acfg->label_generator ++;
717 #elif defined(TARGET_POWERPC)
718 g_assert (!acfg->use_bin_writer);
719 img_writer_emit_unset_mode (acfg->w);
720 fprintf (acfg->fp, ".L%d:\n", acfg->label_generator);
721 fprintf (acfg->fp, "lis 0, (%s + 4 - .L%d)@h\n", acfg->got_symbol, acfg->label_generator);
722 fprintf (acfg->fp, "ori 0, 0, (%s + 4 - .L%d)@l\n", acfg->got_symbol, acfg->label_generator);
723 acfg->label_generator ++;
726 guint32 offset = mono_arch_get_patch_offset (code);
727 emit_bytes (acfg, code, offset);
728 emit_symbol_diff (acfg, acfg->got_symbol, ".", offset);
730 *code_size = offset + 4;
735 * arch_emit_got_access:
737 * The memory pointed to by CODE should hold native code for loading a GOT
738 * slot. Emit this code while patching it so it accesses the GOT slot GOT_SLOT.
739 * CODE_SIZE is set to the number of bytes emitted.
742 arch_emit_got_access (MonoAotCompile *acfg, guint8 *code, int got_slot, int *code_size)
744 /* Emit beginning of instruction */
745 emit_bytes (acfg, code, mono_arch_get_patch_offset (code));
747 /* Emit the offset */
749 emit_symbol_diff (acfg, acfg->got_symbol, ".", (unsigned int) ((got_slot * sizeof (gpointer)) - 4));
750 *code_size = mono_arch_get_patch_offset (code) + 4;
751 #elif defined(TARGET_X86)
752 emit_int32 (acfg, (unsigned int) ((got_slot * sizeof (gpointer))));
753 *code_size = mono_arch_get_patch_offset (code) + 4;
754 #elif defined(TARGET_ARM)
755 emit_symbol_diff (acfg, acfg->got_symbol, ".", (unsigned int) ((got_slot * sizeof (gpointer))) - 12);
756 *code_size = mono_arch_get_patch_offset (code) + 4;
757 #elif defined(TARGET_POWERPC)
763 ppc_load32 (code, ppc_r0, got_slot * sizeof (gpointer));
764 g_assert (code - buf == 8);
765 emit_bytes (acfg, buf, code - buf);
766 *code_size = code - buf;
769 g_assert_not_reached ();
776 * arch_emit_plt_entry:
778 * Emit code for the PLT entry with index INDEX.
781 arch_emit_plt_entry (MonoAotCompile *acfg, int index)
783 #if defined(TARGET_X86)
784 guint32 offset = (acfg->plt_got_offset_base + index) * sizeof (gpointer);
785 #if defined(__default_codegen__)
786 /* jmp *<offset>(%ebx) */
787 emit_byte (acfg, 0xff);
788 emit_byte (acfg, 0xa3);
789 emit_int32 (acfg, offset);
790 /* Used by mono_aot_get_plt_info_offset */
791 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
792 #elif defined(__native_client_codegen__)
793 const guint8 kSizeOfNaClJmp = 11;
794 guint8 bytes[kSizeOfNaClJmp];
795 guint8 *pbytes = &bytes[0];
797 x86_jump_membase32 (pbytes, X86_EBX, offset);
798 emit_bytes (acfg, bytes, kSizeOfNaClJmp);
799 /* four bytes of data, used by mono_arch_patch_plt_entry */
800 /* For Native Client, make this work with data embedded in push. */
801 emit_byte (acfg, 0x68); /* hide data in a push */
802 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
803 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
804 #endif /*__native_client_codegen__*/
805 #elif defined(TARGET_AMD64)
806 #if defined(__default_codegen__)
808 * We can't emit jumps because they are 32 bits only so they can't be patched.
809 * So we make indirect calls through GOT entries which are patched by the AOT
810 * loader to point to .Lpd entries.
812 /* jmpq *<offset>(%rip) */
813 emit_byte (acfg, '\xff');
814 emit_byte (acfg, '\x25');
815 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) -4);
816 /* Used by mono_aot_get_plt_info_offset */
817 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
818 #elif defined(__native_client_codegen__)
820 guint8 *buf_aligned = ALIGN_TO(buf, kNaClAlignment);
821 guint8 *code = buf_aligned;
823 /* mov <OFFSET>(%rip), %r11d */
824 emit_byte (acfg, '\x45');
825 emit_byte (acfg, '\x8b');
826 emit_byte (acfg, '\x1d');
827 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) -4);
829 amd64_jump_reg (code, AMD64_R11);
830 /* This should be constant for the plt patch */
831 g_assert ((size_t)(code-buf_aligned) == 10);
832 emit_bytes (acfg, buf_aligned, code - buf_aligned);
834 /* Hide data in a push imm32 so it passes validation */
835 emit_byte (acfg, 0x68); /* push */
836 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
837 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
838 #endif /*__native_client_codegen__*/
839 #elif defined(TARGET_ARM)
844 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 0);
845 ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_IP);
846 emit_bytes (acfg, buf, code - buf);
847 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) - 4);
848 /* Used by mono_aot_get_plt_info_offset */
849 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
850 #elif defined(TARGET_POWERPC)
851 guint32 offset = (acfg->plt_got_offset_base + index) * sizeof (gpointer);
853 /* The GOT address is guaranteed to be in r30 by OP_LOAD_GOTADDR */
854 g_assert (!acfg->use_bin_writer);
855 img_writer_emit_unset_mode (acfg->w);
856 fprintf (acfg->fp, "lis 11, %d@h\n", offset);
857 fprintf (acfg->fp, "ori 11, 11, %d@l\n", offset);
858 fprintf (acfg->fp, "add 11, 11, 30\n");
859 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
860 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
861 fprintf (acfg->fp, "%s 2, %d(11)\n", PPC_LD_OP, (int)sizeof (gpointer));
862 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
864 fprintf (acfg->fp, "mtctr 11\n");
865 fprintf (acfg->fp, "bctr\n");
866 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
868 g_assert_not_reached ();
873 arch_emit_llvm_plt_entry (MonoAotCompile *acfg, int index)
875 #if defined(TARGET_ARM)
877 /* LLVM calls the PLT entries using bl, so emit a stub */
878 /* FIXME: Too much overhead on every call */
879 fprintf (acfg->fp, ".thumb_func\n");
880 fprintf (acfg->fp, "bx pc\n");
881 fprintf (acfg->fp, "nop\n");
882 fprintf (acfg->fp, ".arm\n");
884 /* LLVM calls the PLT entries using bl, so these have to be thumb2 */
885 /* The caller already transitioned to thumb */
886 /* The code below should be 12 bytes long */
887 fprintf (acfg->fp, "ldr ip, [pc, #8]\n");
888 /* thumb can't encode ld pc, [pc, ip] */
889 fprintf (acfg->fp, "add ip, pc, ip\n");
890 fprintf (acfg->fp, "ldr ip, [ip, #0]\n");
891 fprintf (acfg->fp, "bx ip\n");
892 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) + 4);
893 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
895 g_assert_not_reached ();
900 * arch_emit_specific_trampoline:
902 * Emit code for a specific trampoline. OFFSET is the offset of the first of
903 * two GOT slots which contain the generic trampoline address and the trampoline
904 * argument. TRAMP_SIZE is set to the size of the emitted trampoline.
907 arch_emit_specific_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
910 * The trampolines created here are variations of the specific
911 * trampolines created in mono_arch_create_specific_trampoline (). The
913 * - the generic trampoline address is taken from a got slot.
914 * - the offset of the got slot where the trampoline argument is stored
915 * is embedded in the instruction stream, and the generic trampoline
916 * can load the argument by loading the offset, adding it to the
917 * address of the trampoline to get the address of the got slot, and
918 * loading the argument from there.
919 * - all the trampolines should be of the same length.
921 #if defined(TARGET_AMD64)
922 #if defined(__default_codegen__)
923 /* This should be exactly 16 bytes long */
925 /* call *<offset>(%rip) */
926 emit_byte (acfg, '\x41');
927 emit_byte (acfg, '\xff');
928 emit_byte (acfg, '\x15');
929 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
930 /* This should be relative to the start of the trampoline */
931 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset+1) * sizeof (gpointer)) + 7);
932 emit_zero_bytes (acfg, 5);
933 #elif defined(__native_client_codegen__)
935 guint8 *buf_aligned = ALIGN_TO(buf, kNaClAlignment);
936 guint8 *code = buf_aligned;
941 /* Emit this call in 'code' so we can find out how long it is. */
942 amd64_call_reg (code, AMD64_R11);
943 call_start = mono_arch_nacl_skip_nops (buf_aligned);
944 call_len = code - call_start;
946 /* The tramp_size is twice the NaCl alignment because it starts with */
947 /* a call which needs to be aligned to the end of the boundary. */
948 *tramp_size = kNaClAlignment*2;
950 /* Emit nops to align call site below which is 7 bytes plus */
951 /* the length of the call sequence emitted above. */
952 /* Note: this requires the specific trampoline starts on a */
953 /* kNaclAlignedment aligned address, which it does because */
954 /* it's its own function that is aligned. */
956 guint8 *nopbuf_aligned = ALIGN_TO (nop_buf, kNaClAlignment);
957 guint8 *nopbuf_end = mono_arch_nacl_pad (nopbuf_aligned, kNaClAlignment - 7 - (call_len));
958 emit_bytes (acfg, nopbuf_aligned, nopbuf_end - nopbuf_aligned);
960 /* The trampoline is stored at the offset'th pointer, the -4 is */
961 /* present because RIP relative addressing starts at the end of */
962 /* the current instruction, while the label "." is relative to */
963 /* the beginning of the current asm location, which in this case */
964 /* is not the mov instruction, but the offset itself, due to the */
965 /* way the bytes and ints are emitted here. */
966 got_offset = (offset * sizeof(gpointer)) - 4;
968 /* mov <OFFSET>(%rip), %r11d */
969 emit_byte (acfg, '\x45');
970 emit_byte (acfg, '\x8b');
971 emit_byte (acfg, '\x1d');
972 emit_symbol_diff (acfg, acfg->got_symbol, ".", got_offset);
975 emit_bytes (acfg, call_start, call_len);
977 /* The arg is stored at the offset+1 pointer, relative to beginning */
978 /* of trampoline: 7 for mov, plus the call length, and 1 for push. */
979 got_offset = ((offset + 1) * sizeof(gpointer)) + 7 + call_len + 1;
981 /* We can't emit this data directly, hide in a "push imm32" */
982 emit_byte (acfg, '\x68'); /* push */
983 emit_symbol_diff (acfg, acfg->got_symbol, ".", got_offset);
984 emit_alignment (acfg, kNaClAlignment);
985 #endif /*__native_client_codegen__*/
986 #elif defined(TARGET_ARM)
990 /* This should be exactly 20 bytes long */
993 ARM_PUSH (code, 0x5fff);
994 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 4);
995 /* Load the value from the GOT */
996 ARM_LDR_REG_REG (code, ARMREG_R1, ARMREG_PC, ARMREG_R1);
998 ARM_BLX_REG (code, ARMREG_R1);
1000 g_assert (code - buf == 16);
1003 emit_bytes (acfg, buf, code - buf);
1005 * Only one offset is needed, since the second one would be equal to the
1008 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 4);
1009 //emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4 + 8);
1010 #elif defined(TARGET_POWERPC)
1017 g_assert (!acfg->use_bin_writer);
1020 * PPC has no ip relative addressing, so we need to compute the address
1021 * of the mscorlib got. That is slow and complex, so instead, we store it
1022 * in the second got slot of every aot image. The caller already computed
1023 * the address of its got and placed it into r30.
1025 img_writer_emit_unset_mode (acfg->w);
1026 /* Load mscorlib got address */
1027 fprintf (acfg->fp, "%s 0, %d(30)\n", PPC_LD_OP, (int)sizeof (gpointer));
1028 /* Load generic trampoline address */
1029 fprintf (acfg->fp, "lis 11, %d@h\n", (int)(offset * sizeof (gpointer)));
1030 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)(offset * sizeof (gpointer)));
1031 fprintf (acfg->fp, "%s 11, 11, 0\n", PPC_LDX_OP);
1032 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
1033 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
1035 fprintf (acfg->fp, "mtctr 11\n");
1036 /* Load trampoline argument */
1037 /* On ppc, we pass it normally to the generic trampoline */
1038 fprintf (acfg->fp, "lis 11, %d@h\n", (int)((offset + 1) * sizeof (gpointer)));
1039 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)((offset + 1) * sizeof (gpointer)));
1040 fprintf (acfg->fp, "%s 0, 11, 0\n", PPC_LDX_OP);
1041 /* Branch to generic trampoline */
1042 fprintf (acfg->fp, "bctr\n");
1044 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
1045 *tramp_size = 10 * 4;
1047 *tramp_size = 9 * 4;
1049 #elif defined(TARGET_X86)
1053 /* Similar to the PPC code above */
1055 /* FIXME: Could this clobber the register needed by get_vcall_slot () ? */
1057 /* We clobber ECX, since EAX is used as MONO_ARCH_MONITOR_OBJECT_REG */
1058 #ifdef MONO_ARCH_MONITOR_OBJECT_REG
1059 g_assert (MONO_ARCH_MONITOR_OBJECT_REG != X86_ECX);
1063 /* Load mscorlib got address */
1064 x86_mov_reg_membase (code, X86_ECX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4);
1065 /* Push trampoline argument */
1066 x86_push_membase (code, X86_ECX, (offset + 1) * sizeof (gpointer));
1067 /* Load generic trampoline address */
1068 x86_mov_reg_membase (code, X86_ECX, X86_ECX, offset * sizeof (gpointer), 4);
1069 /* Branch to generic trampoline */
1070 x86_jump_reg (code, X86_ECX);
1072 #ifdef __native_client_codegen__
1074 /* emit nops to next 32 byte alignment */
1075 int a = (~kNaClAlignmentMask) & ((code - buf) + kNaClAlignment - 1);
1076 while (code < (buf + a)) x86_nop(code);
1079 emit_bytes (acfg, buf, code - buf);
1081 *tramp_size = NACL_SIZE(17, kNaClAlignment);
1082 g_assert (code - buf == *tramp_size);
1084 g_assert_not_reached ();
1089 * arch_emit_unbox_trampoline:
1091 * Emit code for the unbox trampoline for METHOD used in the full-aot case.
1092 * CALL_TARGET is the symbol pointing to the native code of METHOD.
1095 arch_emit_unbox_trampoline (MonoAotCompile *acfg, MonoCompile *cfg, MonoMethod *method, const char *call_target)
1097 #if defined(TARGET_AMD64)
1102 this_reg = mono_arch_get_this_arg_reg (NULL);
1104 amd64_alu_reg_imm (code, X86_ADD, this_reg, sizeof (MonoObject));
1106 emit_bytes (acfg, buf, code - buf);
1108 emit_byte (acfg, '\xe9');
1109 emit_symbol_diff (acfg, call_target, ".", -4);
1110 #elif defined(TARGET_X86)
1117 x86_alu_membase_imm (code, X86_ADD, X86_ESP, this_pos, sizeof (MonoObject));
1119 emit_bytes (acfg, buf, code - buf);
1122 emit_byte (acfg, '\xe9');
1123 emit_symbol_diff (acfg, call_target, ".", -4);
1124 #elif defined(TARGET_ARM)
1128 if (acfg->thumb_mixed && cfg->compile_llvm) {
1129 fprintf (acfg->fp, "add r0, r0, #%d\n", sizeof (MonoObject));
1130 fprintf (acfg->fp, "b %s\n", call_target);
1131 fprintf (acfg->fp, ".arm\n");
1137 ARM_ADD_REG_IMM8 (code, ARMREG_R0, ARMREG_R0, sizeof (MonoObject));
1139 emit_bytes (acfg, buf, code - buf);
1140 /* jump to method */
1141 if (acfg->use_bin_writer) {
1148 img_writer_emit_reloc (acfg->w, R_ARM_JUMP24, call_target, -8);
1149 emit_bytes (acfg, buf, 4);
1151 if (acfg->thumb_mixed && cfg->compile_llvm)
1152 fprintf (acfg->fp, "\n\tbx %s\n", call_target);
1154 fprintf (acfg->fp, "\n\tb %s\n", call_target);
1156 #elif defined(TARGET_POWERPC)
1159 g_assert (!acfg->use_bin_writer);
1161 fprintf (acfg->fp, "\n\taddi %d, %d, %d\n", this_pos, this_pos, (int)sizeof (MonoObject));
1162 fprintf (acfg->fp, "\n\tb %s\n", call_target);
1164 g_assert_not_reached ();
1169 * arch_emit_static_rgctx_trampoline:
1171 * Emit code for a static rgctx trampoline. OFFSET is the offset of the first of
1172 * two GOT slots which contain the rgctx argument, and the method to jump to.
1173 * TRAMP_SIZE is set to the size of the emitted trampoline.
1174 * These kinds of trampolines cannot be enumerated statically, since there could
1175 * be one trampoline per method instantiation, so we emit the same code for all
1176 * trampolines, and parameterize them using two GOT slots.
1179 arch_emit_static_rgctx_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
1181 #if defined(TARGET_AMD64)
1182 #if defined(__default_codegen__)
1183 /* This should be exactly 13 bytes long */
1186 /* mov <OFFSET>(%rip), %r10 */
1187 emit_byte (acfg, '\x4d');
1188 emit_byte (acfg, '\x8b');
1189 emit_byte (acfg, '\x15');
1190 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
1192 /* jmp *<offset>(%rip) */
1193 emit_byte (acfg, '\xff');
1194 emit_byte (acfg, '\x25');
1195 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4);
1196 #elif defined(__native_client_codegen__)
1198 guint8 *buf_aligned = ALIGN_TO(buf, kNaClAlignment);
1199 guint8 *code = buf_aligned;
1201 /* mov <OFFSET>(%rip), %r10d */
1202 emit_byte (acfg, '\x45');
1203 emit_byte (acfg, '\x8b');
1204 emit_byte (acfg, '\x15');
1205 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
1207 /* mov <OFFSET>(%rip), %r11d */
1208 emit_byte (acfg, '\x45');
1209 emit_byte (acfg, '\x8b');
1210 emit_byte (acfg, '\x1d');
1211 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4);
1214 amd64_jump_reg (code, AMD64_R11);
1215 emit_bytes (acfg, buf_aligned, code - buf_aligned);
1217 emit_alignment (acfg, kNaClAlignment);
1218 *tramp_size = kNaClAlignment;
1219 #endif /*__native_client_codegen__*/
1221 #elif defined(TARGET_ARM)
1225 /* This should be exactly 24 bytes long */
1228 /* Load rgctx value */
1229 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 8);
1230 ARM_LDR_REG_REG (code, MONO_ARCH_RGCTX_REG, ARMREG_PC, ARMREG_IP);
1231 /* Load branch addr + branch */
1232 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 4);
1233 ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_IP);
1235 g_assert (code - buf == 16);
1238 emit_bytes (acfg, buf, code - buf);
1239 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 8);
1240 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4 + 4);
1241 #elif defined(TARGET_POWERPC)
1248 g_assert (!acfg->use_bin_writer);
1251 * PPC has no ip relative addressing, so we need to compute the address
1252 * of the mscorlib got. That is slow and complex, so instead, we store it
1253 * in the second got slot of every aot image. The caller already computed
1254 * the address of its got and placed it into r30.
1256 img_writer_emit_unset_mode (acfg->w);
1257 /* Load mscorlib got address */
1258 fprintf (acfg->fp, "%s 0, %d(30)\n", PPC_LD_OP, (int)sizeof (gpointer));
1260 fprintf (acfg->fp, "lis 11, %d@h\n", (int)(offset * sizeof (gpointer)));
1261 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)(offset * sizeof (gpointer)));
1262 fprintf (acfg->fp, "%s %d, 11, 0\n", PPC_LDX_OP, MONO_ARCH_RGCTX_REG);
1263 /* Load target address */
1264 fprintf (acfg->fp, "lis 11, %d@h\n", (int)((offset + 1) * sizeof (gpointer)));
1265 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)((offset + 1) * sizeof (gpointer)));
1266 fprintf (acfg->fp, "%s 11, 11, 0\n", PPC_LDX_OP);
1267 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
1268 fprintf (acfg->fp, "%s 2, %d(11)\n", PPC_LD_OP, (int)sizeof (gpointer));
1269 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
1271 fprintf (acfg->fp, "mtctr 11\n");
1272 /* Branch to the target address */
1273 fprintf (acfg->fp, "bctr\n");
1275 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
1276 *tramp_size = 11 * 4;
1278 *tramp_size = 9 * 4;
1281 #elif defined(TARGET_X86)
1285 /* Similar to the PPC code above */
1287 g_assert (MONO_ARCH_RGCTX_REG != X86_ECX);
1290 /* Load mscorlib got address */
1291 x86_mov_reg_membase (code, X86_ECX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4);
1293 x86_mov_reg_membase (code, MONO_ARCH_RGCTX_REG, X86_ECX, offset * sizeof (gpointer), 4);
1294 /* Branch to the target address */
1295 x86_jump_membase (code, X86_ECX, (offset + 1) * sizeof (gpointer));
1297 #ifdef __native_client_codegen__
1299 /* emit nops to next 32 byte alignment */
1300 int a = (~kNaClAlignmentMask) & ((code - buf) + kNaClAlignment - 1);
1301 while (code < (buf + a)) x86_nop(code);
1305 emit_bytes (acfg, buf, code - buf);
1307 *tramp_size = NACL_SIZE (15, kNaClAlignment);
1308 g_assert (code - buf == *tramp_size);
1310 g_assert_not_reached ();
1315 * arch_emit_imt_thunk:
1317 * Emit an IMT thunk usable in full-aot mode. The thunk uses 1 got slot which
1318 * points to an array of pointer pairs. The pairs of the form [key, ptr], where
1319 * key is the IMT key, and ptr holds the address of a memory location holding
1320 * the address to branch to if the IMT arg matches the key. The array is
1321 * terminated by a pair whose key is NULL, and whose ptr is the address of the
1323 * TRAMP_SIZE is set to the size of the emitted trampoline.
1326 arch_emit_imt_thunk (MonoAotCompile *acfg, int offset, int *tramp_size)
1328 #if defined(TARGET_AMD64)
1330 #if defined(__native_client_codegen__)
1335 guint8 *mov_buf_ptr = mov_buf;
1337 const int kSizeOfMove = 7;
1338 #if defined(__default_codegen__)
1339 code = buf = g_malloc (256);
1340 #elif defined(__native_client_codegen__)
1341 buf_alloc = g_malloc (256 + kNaClAlignment + kSizeOfMove);
1342 buf = ((guint)buf_alloc + kNaClAlignment) & ~kNaClAlignmentMask;
1343 /* The RIP relative move below is emitted first */
1348 /* FIXME: Optimize this, i.e. use binary search etc. */
1349 /* Maybe move the body into a separate function (slower, but much smaller) */
1351 /* MONO_ARCH_IMT_SCRATCH_REG is a free register */
1354 amd64_alu_membase_imm (code, X86_CMP, MONO_ARCH_IMT_SCRATCH_REG, 0, 0);
1356 amd64_branch8 (code, X86_CC_Z, 0, FALSE);
1359 amd64_alu_membase_reg_size (code, X86_CMP, MONO_ARCH_IMT_SCRATCH_REG, 0, MONO_ARCH_IMT_REG, sizeof (gpointer));
1361 amd64_branch8 (code, X86_CC_Z, 0, FALSE);
1364 amd64_alu_reg_imm (code, X86_ADD, MONO_ARCH_IMT_SCRATCH_REG, 2 * sizeof (gpointer));
1365 amd64_jump_code (code, labels [0]);
1368 mono_amd64_patch (labels [2], code);
1369 amd64_mov_reg_membase (code, MONO_ARCH_IMT_SCRATCH_REG, MONO_ARCH_IMT_SCRATCH_REG, sizeof (gpointer), sizeof (gpointer));
1370 amd64_jump_membase (code, MONO_ARCH_IMT_SCRATCH_REG, 0);
1374 mono_amd64_patch (labels [1], code);
1375 x86_breakpoint (code);
1377 /* mov <OFFSET>(%rip), MONO_ARCH_IMT_SCRATCH_REG */
1378 amd64_emit_rex (mov_buf_ptr, sizeof(gpointer), MONO_ARCH_IMT_SCRATCH_REG, 0, AMD64_RIP);
1379 *(mov_buf_ptr)++ = (unsigned char)0x8b; /* mov opcode */
1380 x86_address_byte (mov_buf_ptr, 0, MONO_ARCH_IMT_SCRATCH_REG & 0x7, 5);
1381 emit_bytes (acfg, mov_buf, mov_buf_ptr - mov_buf);
1382 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
1384 emit_bytes (acfg, buf, code - buf);
1386 *tramp_size = code - buf + kSizeOfMove;
1387 #if defined(__native_client_codegen__)
1388 /* The tramp will be padded to the next kNaClAlignment bundle. */
1389 *tramp_size = ALIGN_TO ((*tramp_size), kNaClAlignment);
1392 #if defined(__default_codegen__)
1394 #elif defined(__native_client_codegen__)
1398 #elif defined(TARGET_X86)
1400 #ifdef __native_client_codegen__
1403 guint8 *labels [16];
1405 #if defined(__default_codegen__)
1406 code = buf = g_malloc (256);
1407 #elif defined(__native_client_codegen__)
1408 buf_alloc = g_malloc (256 + kNaClAlignment);
1409 code = buf = ((guint)buf_alloc + kNaClAlignment) & ~kNaClAlignmentMask;
1412 /* Allocate a temporary stack slot */
1413 x86_push_reg (code, X86_EAX);
1415 x86_push_reg (code, X86_EAX);
1417 /* Load mscorlib got address */
1418 x86_mov_reg_membase (code, X86_EAX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4);
1420 x86_mov_reg_membase (code, X86_EAX, X86_EAX, offset * sizeof (gpointer), 4);
1423 x86_alu_membase_imm (code, X86_CMP, X86_EAX, 0, 0);
1425 x86_branch8 (code, X86_CC_Z, FALSE, 0);
1428 x86_alu_membase_reg (code, X86_CMP, X86_EAX, 0, MONO_ARCH_IMT_REG);
1430 x86_branch8 (code, X86_CC_Z, FALSE, 0);
1433 x86_alu_reg_imm (code, X86_ADD, X86_EAX, 2 * sizeof (gpointer));
1434 x86_jump_code (code, labels [0]);
1437 mono_x86_patch (labels [2], code);
1438 x86_mov_reg_membase (code, X86_EAX, X86_EAX, sizeof (gpointer), 4);
1439 x86_mov_reg_membase (code, X86_EAX, X86_EAX, 0, 4);
1440 /* Save the target address to the temporary stack location */
1441 x86_mov_membase_reg (code, X86_ESP, 4, X86_EAX, 4);
1443 x86_pop_reg (code, X86_EAX);
1444 /* Jump to the target address */
1448 mono_x86_patch (labels [1], code);
1449 /* Load fail tramp */
1450 x86_mov_reg_membase (code, X86_EAX, X86_EAX, sizeof (gpointer), 4);
1451 x86_alu_membase_imm (code, X86_CMP, X86_EAX, 0, 0);
1453 x86_branch8 (code, X86_CC_Z, FALSE, 0);
1454 /* Jump to fail tramp */
1455 x86_mov_membase_reg (code, X86_ESP, 4, X86_EAX, 4);
1456 x86_pop_reg (code, X86_EAX);
1460 mono_x86_patch (labels [3], code);
1461 x86_breakpoint (code);
1463 #ifdef __native_client_codegen__
1465 /* emit nops to next 32 byte alignment */
1466 int a = (~kNaClAlignmentMask) & ((code - buf) + kNaClAlignment - 1);
1467 while (code < (buf + a)) x86_nop(code);
1470 emit_bytes (acfg, buf, code - buf);
1472 *tramp_size = code - buf;
1474 #if defined(__default_codegen__)
1476 #elif defined(__native_client_codegen__)
1480 #elif defined(TARGET_ARM)
1482 guint8 *code, *code2, *labels [16];
1486 /* The IMT method is in v5 */
1488 /* Need at least two free registers, plus a slot for storing the pc */
1489 ARM_PUSH (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_R2));
1491 /* Load the parameter from the GOT */
1492 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_PC, 0);
1493 ARM_LDR_REG_REG (code, ARMREG_R0, ARMREG_PC, ARMREG_R0);
1496 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_R0, 0);
1497 ARM_CMP_REG_REG (code, ARMREG_R1, ARMREG_V5);
1499 ARM_B_COND (code, ARMCOND_EQ, 0);
1501 /* End-of-loop check */
1502 ARM_CMP_REG_IMM (code, ARMREG_R1, 0, 0);
1504 ARM_B_COND (code, ARMCOND_EQ, 0);
1507 ARM_ADD_REG_IMM8 (code, ARMREG_R0, ARMREG_R0, sizeof (gpointer) * 2);
1510 arm_patch (labels [4], labels [1]);
1513 arm_patch (labels [2], code);
1514 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4);
1515 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 0);
1516 /* Save it to the third stack slot */
1517 ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8);
1518 /* Restore the registers and branch */
1519 ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC));
1522 arm_patch (labels [3], code);
1523 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4);
1524 ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8);
1525 ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC));
1529 ARM_LDR_IMM (code2, ARMREG_R0, ARMREG_PC, (code - (labels [0] + 8)));
1531 emit_bytes (acfg, buf, code - buf);
1532 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) + (code - (labels [0] + 8)) - 4);
1534 *tramp_size = code - buf + 4;
1535 #elif defined(TARGET_POWERPC)
1537 guint8 *code, *labels [16];
1541 /* Load the mscorlib got address */
1542 ppc_ldptr (code, ppc_r11, sizeof (gpointer), ppc_r30);
1543 /* Load the parameter from the GOT */
1544 ppc_load (code, ppc_r0, offset * sizeof (gpointer));
1545 ppc_ldptr_indexed (code, ppc_r11, ppc_r11, ppc_r0);
1547 /* Load and check key */
1549 ppc_ldptr (code, ppc_r0, 0, ppc_r11);
1550 ppc_cmp (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, MONO_ARCH_IMT_REG);
1552 ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0);
1554 /* End-of-loop check */
1555 ppc_cmpi (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, 0);
1557 ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0);
1560 ppc_addi (code, ppc_r11, ppc_r11, 2 * sizeof (gpointer));
1563 mono_ppc_patch (labels [4], labels [1]);
1566 mono_ppc_patch (labels [2], code);
1567 ppc_ldptr (code, ppc_r11, sizeof (gpointer), ppc_r11);
1568 /* r11 now contains the value of the vtable slot */
1569 /* this is not a function descriptor on ppc64 */
1570 ppc_ldptr (code, ppc_r11, 0, ppc_r11);
1571 ppc_mtctr (code, ppc_r11);
1572 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
1575 mono_ppc_patch (labels [3], code);
1579 *tramp_size = code - buf;
1581 emit_bytes (acfg, buf, code - buf);
1583 g_assert_not_reached ();
1588 arch_emit_autoreg (MonoAotCompile *acfg, char *symbol)
1590 #if defined(TARGET_POWERPC) && defined(__mono_ilp32__)
1591 /* Based on code generated by gcc */
1592 img_writer_emit_unset_mode (acfg->w);
1595 #if defined(_MSC_VER) || defined(MONO_CROSS_COMPILE)
1596 ".section .ctors,\"aw\",@progbits\n"
1600 ".section .opd,\"aw\"\n"
1603 ".long .%s,.TOC.@tocbase32\n"
1606 ".type .%s,@function\n"
1608 ".%s:\n", symbol, symbol, symbol, symbol, symbol, symbol, symbol, symbol);
1610 ".section .ctors,\"aw\",@progbits\n"
1614 ".section .opd,\"aw\"\n"
1617 ".long .%1$s,.TOC.@tocbase32\n"
1618 ".size %1$s,.-%1$s\n"
1620 ".type .%1$s,@function\n"
1622 ".%1$s:\n", symbol);
1633 "lis 3, .Lglobals@h\n"
1634 "ori 3, 3, .Lglobals@l\n"
1635 "bl .mono_aot_register_module\n"
1643 #if defined(_MSC_VER) || defined(MONO_CROSS_COMPILE)
1645 ".size .%s,.-.%s\n", symbol, symbol);
1648 ".size .%1$s,.-.%1$s\n", symbol);
1654 /* END OF ARCH SPECIFIC CODE */
1657 mono_get_field_token (MonoClassField *field)
1659 MonoClass *klass = field->parent;
1662 for (i = 0; i < klass->field.count; ++i) {
1663 if (field == &klass->fields [i])
1664 return MONO_TOKEN_FIELD_DEF | (klass->field.first + 1 + i);
1667 g_assert_not_reached ();
1672 encode_value (gint32 value, guint8 *buf, guint8 **endbuf)
1676 //printf ("ENCODE: %d 0x%x.\n", value, value);
1679 * Same encoding as the one used in the metadata, extended to handle values
1680 * greater than 0x1fffffff.
1682 if ((value >= 0) && (value <= 127))
1684 else if ((value >= 0) && (value <= 16383)) {
1685 p [0] = 0x80 | (value >> 8);
1686 p [1] = value & 0xff;
1688 } else if ((value >= 0) && (value <= 0x1fffffff)) {
1689 p [0] = (value >> 24) | 0xc0;
1690 p [1] = (value >> 16) & 0xff;
1691 p [2] = (value >> 8) & 0xff;
1692 p [3] = value & 0xff;
1697 p [1] = (value >> 24) & 0xff;
1698 p [2] = (value >> 16) & 0xff;
1699 p [3] = (value >> 8) & 0xff;
1700 p [4] = value & 0xff;
1708 stream_init (MonoDynamicStream *sh)
1711 sh->alloc_size = 4096;
1712 sh->data = g_malloc (4096);
1714 /* So offsets are > 0 */
1720 make_room_in_stream (MonoDynamicStream *stream, int size)
1722 if (size <= stream->alloc_size)
1725 while (stream->alloc_size <= size) {
1726 if (stream->alloc_size < 4096)
1727 stream->alloc_size = 4096;
1729 stream->alloc_size *= 2;
1732 stream->data = g_realloc (stream->data, stream->alloc_size);
1736 add_stream_data (MonoDynamicStream *stream, const char *data, guint32 len)
1740 make_room_in_stream (stream, stream->index + len);
1741 memcpy (stream->data + stream->index, data, len);
1742 idx = stream->index;
1743 stream->index += len;
1750 * Add data to the binary blob inside the aot image. Returns the offset inside the
1751 * blob where the data was stored.
1754 add_to_blob (MonoAotCompile *acfg, const guint8 *data, guint32 data_len)
1756 if (acfg->blob.alloc_size == 0)
1757 stream_init (&acfg->blob);
1759 return add_stream_data (&acfg->blob, (char*)data, data_len);
1763 add_to_blob_aligned (MonoAotCompile *acfg, const guint8 *data, guint32 data_len, guint32 align)
1768 if (acfg->blob.alloc_size == 0)
1769 stream_init (&acfg->blob);
1771 count = acfg->blob.index % align;
1773 /* we assume the stream data will be aligned */
1775 add_stream_data (&acfg->blob, buf, 4 - count);
1777 return add_stream_data (&acfg->blob, (char*)data, data_len);
1781 * emit_offset_table:
1783 * Emit a table of increasing offsets in a compact form using differential encoding.
1784 * There is an index entry for each GROUP_SIZE number of entries. The greater the
1785 * group size, the more compact the table becomes, but the slower it becomes to compute
1786 * a given entry. Returns the size of the table.
1789 emit_offset_table (MonoAotCompile *acfg, int noffsets, int group_size, gint32 *offsets)
1791 gint32 current_offset;
1792 int i, buf_size, ngroups, index_entry_size;
1794 guint32 *index_offsets;
1796 ngroups = (noffsets + (group_size - 1)) / group_size;
1798 index_offsets = g_new0 (guint32, ngroups);
1800 buf_size = noffsets * 4;
1801 p = buf = g_malloc0 (buf_size);
1804 for (i = 0; i < noffsets; ++i) {
1805 //printf ("D: %d -> %d\n", i, offsets [i]);
1806 if ((i % group_size) == 0) {
1807 index_offsets [i / group_size] = p - buf;
1808 /* Emit the full value for these entries */
1809 encode_value (offsets [i], p, &p);
1811 /* The offsets are allowed to be non-increasing */
1812 //g_assert (offsets [i] >= current_offset);
1813 encode_value (offsets [i] - current_offset, p, &p);
1815 current_offset = offsets [i];
1818 if (ngroups && index_offsets [ngroups - 1] < 65000)
1819 index_entry_size = 2;
1821 index_entry_size = 4;
1823 /* Emit the header */
1824 emit_int32 (acfg, noffsets);
1825 emit_int32 (acfg, group_size);
1826 emit_int32 (acfg, ngroups);
1827 emit_int32 (acfg, index_entry_size);
1829 /* Emit the index */
1830 for (i = 0; i < ngroups; ++i) {
1831 if (index_entry_size == 2)
1832 emit_int16 (acfg, index_offsets [i]);
1834 emit_int32 (acfg, index_offsets [i]);
1838 emit_bytes (acfg, buf, p - buf);
1840 return (int)(p - buf) + (ngroups * 4);
1844 get_image_index (MonoAotCompile *cfg, MonoImage *image)
1848 index = GPOINTER_TO_UINT (g_hash_table_lookup (cfg->image_hash, image));
1852 index = g_hash_table_size (cfg->image_hash);
1853 g_hash_table_insert (cfg->image_hash, image, GUINT_TO_POINTER (index + 1));
1854 g_ptr_array_add (cfg->image_table, image);
1860 find_typespec_for_class (MonoAotCompile *acfg, MonoClass *klass)
1863 int len = acfg->image->tables [MONO_TABLE_TYPESPEC].rows;
1865 /* FIXME: Search referenced images as well */
1866 if (!acfg->typespec_classes) {
1867 acfg->typespec_classes = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoClass*) * len);
1868 for (i = 0; i < len; ++i) {
1869 acfg->typespec_classes [i] = mono_class_get_full (acfg->image, MONO_TOKEN_TYPE_SPEC | (i + 1), NULL);
1872 for (i = 0; i < len; ++i) {
1873 if (acfg->typespec_classes [i] == klass)
1878 return MONO_TOKEN_TYPE_SPEC | (i + 1);
1884 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf);
1887 encode_klass_ref (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf);
1890 encode_ginst (MonoAotCompile *acfg, MonoGenericInst *inst, guint8 *buf, guint8 **endbuf);
1893 encode_type (MonoAotCompile *acfg, MonoType *t, guint8 *buf, guint8 **endbuf);
1896 encode_klass_ref_inner (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf)
1901 * The encoding begins with one of the MONO_AOT_TYPEREF values, followed by additional
1905 if (klass->generic_class) {
1907 g_assert (klass->type_token);
1909 /* Find a typespec for a class if possible */
1910 token = find_typespec_for_class (acfg, klass);
1912 encode_value (MONO_AOT_TYPEREF_TYPESPEC_TOKEN, p, &p);
1913 encode_value (token, p, &p);
1915 MonoClass *gclass = klass->generic_class->container_class;
1916 MonoGenericInst *inst = klass->generic_class->context.class_inst;
1917 static int count = 0;
1920 encode_value (MONO_AOT_TYPEREF_GINST, p, &p);
1921 encode_klass_ref (acfg, gclass, p, &p);
1922 encode_ginst (acfg, inst, p, &p);
1926 } else if (klass->type_token) {
1927 int iindex = get_image_index (acfg, klass->image);
1929 g_assert (mono_metadata_token_code (klass->type_token) == MONO_TOKEN_TYPE_DEF);
1931 encode_value (MONO_AOT_TYPEREF_TYPEDEF_INDEX, p, &p);
1932 encode_value (klass->type_token - MONO_TOKEN_TYPE_DEF, p, &p);
1934 encode_value (MONO_AOT_TYPEREF_TYPEDEF_INDEX_IMAGE, p, &p);
1935 encode_value (klass->type_token - MONO_TOKEN_TYPE_DEF, p, &p);
1936 encode_value (get_image_index (acfg, klass->image), p, &p);
1938 } else if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) {
1939 MonoGenericContainer *container = mono_type_get_generic_param_owner (&klass->byval_arg);
1940 g_assert (container);
1942 encode_value (MONO_AOT_TYPEREF_VAR, p, &p);
1943 encode_value (klass->byval_arg.type, p, &p);
1944 encode_value (mono_type_get_generic_param_num (&klass->byval_arg), p, &p);
1946 encode_value (container->is_method, p, &p);
1947 if (container->is_method)
1948 encode_method_ref (acfg, container->owner.method, p, &p);
1950 encode_klass_ref (acfg, container->owner.klass, p, &p);
1951 } else if (klass->byval_arg.type == MONO_TYPE_PTR) {
1952 encode_value (MONO_AOT_TYPEREF_PTR, p, &p);
1953 encode_type (acfg, &klass->byval_arg, p, &p);
1956 g_assert (klass->rank > 0);
1957 encode_value (MONO_AOT_TYPEREF_ARRAY, p, &p);
1958 encode_value (klass->rank, p, &p);
1959 encode_klass_ref (acfg, klass->element_class, p, &p);
1967 * Encode a reference to KLASS. We use our home-grown encoding instead of the
1968 * standard metadata encoding.
1971 encode_klass_ref (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf)
1973 gboolean shared = FALSE;
1976 * The encoding of generic instances is large so emit them only once.
1978 if (klass->generic_class) {
1980 g_assert (klass->type_token);
1982 /* Find a typespec for a class if possible */
1983 token = find_typespec_for_class (acfg, klass);
1986 } else if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) {
1991 guint offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->klass_blob_hash, klass));
1995 buf2 = g_malloc (1024);
1998 encode_klass_ref_inner (acfg, klass, p, &p);
1999 g_assert (p - buf2 < 1024);
2001 offset = add_to_blob (acfg, buf2, p - buf2);
2004 g_hash_table_insert (acfg->klass_blob_hash, klass, GUINT_TO_POINTER (offset + 1));
2010 encode_value (MONO_AOT_TYPEREF_BLOB_INDEX, p, &p);
2011 encode_value (offset, p, &p);
2016 encode_klass_ref_inner (acfg, klass, buf, endbuf);
2020 encode_field_info (MonoAotCompile *cfg, MonoClassField *field, guint8 *buf, guint8 **endbuf)
2022 guint32 token = mono_get_field_token (field);
2025 encode_klass_ref (cfg, field->parent, p, &p);
2026 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_FIELD_DEF);
2027 encode_value (token - MONO_TOKEN_FIELD_DEF, p, &p);
2032 encode_ginst (MonoAotCompile *acfg, MonoGenericInst *inst, guint8 *buf, guint8 **endbuf)
2037 encode_value (inst->type_argc, p, &p);
2038 for (i = 0; i < inst->type_argc; ++i)
2039 encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
2044 encode_generic_context (MonoAotCompile *acfg, MonoGenericContext *context, guint8 *buf, guint8 **endbuf)
2047 MonoGenericInst *inst;
2049 inst = context->class_inst;
2051 g_assert (inst->type_argc);
2052 encode_ginst (acfg, inst, p, &p);
2054 encode_value (0, p, &p);
2056 inst = context->method_inst;
2058 g_assert (inst->type_argc);
2059 encode_ginst (acfg, inst, p, &p);
2061 encode_value (0, p, &p);
2067 encode_type (MonoAotCompile *acfg, MonoType *t, guint8 *buf, guint8 **endbuf)
2071 g_assert (t->num_mods == 0);
2072 /* t->attrs can be ignored */
2073 //g_assert (t->attrs == 0);
2076 *p = MONO_TYPE_PINNED;
2080 *p = MONO_TYPE_BYREF;
2088 case MONO_TYPE_VOID:
2089 case MONO_TYPE_BOOLEAN:
2090 case MONO_TYPE_CHAR:
2103 case MONO_TYPE_STRING:
2104 case MONO_TYPE_OBJECT:
2105 case MONO_TYPE_TYPEDBYREF:
2107 case MONO_TYPE_VALUETYPE:
2108 case MONO_TYPE_CLASS:
2109 encode_klass_ref (acfg, mono_class_from_mono_type (t), p, &p);
2111 case MONO_TYPE_SZARRAY:
2112 encode_klass_ref (acfg, t->data.klass, p, &p);
2115 encode_type (acfg, t->data.type, p, &p);
2117 case MONO_TYPE_GENERICINST: {
2118 MonoClass *gclass = t->data.generic_class->container_class;
2119 MonoGenericInst *inst = t->data.generic_class->context.class_inst;
2121 encode_klass_ref (acfg, gclass, p, &p);
2122 encode_ginst (acfg, inst, p, &p);
2125 case MONO_TYPE_ARRAY: {
2126 MonoArrayType *array = t->data.array;
2129 encode_klass_ref (acfg, array->eklass, p, &p);
2130 encode_value (array->rank, p, &p);
2131 encode_value (array->numsizes, p, &p);
2132 for (i = 0; i < array->numsizes; ++i)
2133 encode_value (array->sizes [i], p, &p);
2134 encode_value (array->numlobounds, p, &p);
2135 for (i = 0; i < array->numlobounds; ++i)
2136 encode_value (array->lobounds [i], p, &p);
2140 g_assert_not_reached ();
2147 encode_signature (MonoAotCompile *acfg, MonoMethodSignature *sig, guint8 *buf, guint8 **endbuf)
2153 /* Similar to the metadata encoding */
2154 if (sig->generic_param_count)
2158 if (sig->explicit_this)
2160 flags |= (sig->call_convention & 0x0F);
2164 if (sig->generic_param_count)
2165 encode_value (sig->generic_param_count, p, &p);
2166 encode_value (sig->param_count, p, &p);
2168 encode_type (acfg, sig->ret, p, &p);
2169 for (i = 0; i < sig->param_count; ++i) {
2170 if (sig->sentinelpos == i) {
2171 *p = MONO_TYPE_SENTINEL;
2174 encode_type (acfg, sig->params [i], p, &p);
2180 #define MAX_IMAGE_INDEX 250
2183 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf)
2185 guint32 image_index = get_image_index (acfg, method->klass->image);
2186 guint32 token = method->token;
2187 MonoJumpInfoToken *ji;
2191 * The encoding for most methods is as follows:
2192 * - image index encoded as a leb128
2193 * - token index encoded as a leb128
2194 * Values of image index >= MONO_AOT_METHODREF_MIN are used to mark additional
2195 * types of method encodings.
2198 g_assert (image_index < MONO_AOT_METHODREF_MIN);
2200 /* Mark methods which can't use aot trampolines because they need the further
2201 * processing in mono_magic_trampoline () which requires a MonoMethod*.
2203 if ((method->is_generic && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) ||
2204 (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED))
2205 encode_value ((MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE << 24), p, &p);
2207 if (method->wrapper_type) {
2208 encode_value ((MONO_AOT_METHODREF_WRAPPER << 24), p, &p);
2210 encode_value (method->wrapper_type, p, &p);
2212 switch (method->wrapper_type) {
2213 case MONO_WRAPPER_REMOTING_INVOKE:
2214 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2215 case MONO_WRAPPER_XDOMAIN_INVOKE: {
2218 m = mono_marshal_method_from_wrapper (method);
2220 encode_method_ref (acfg, m, p, &p);
2223 case MONO_WRAPPER_PROXY_ISINST:
2224 case MONO_WRAPPER_LDFLD:
2225 case MONO_WRAPPER_LDFLDA:
2226 case MONO_WRAPPER_STFLD:
2227 case MONO_WRAPPER_ISINST: {
2228 MonoClass *proxy_class = mono_marshal_get_wrapper_info (method);
2229 encode_klass_ref (acfg, proxy_class, p, &p);
2232 case MONO_WRAPPER_LDFLD_REMOTE:
2233 case MONO_WRAPPER_STFLD_REMOTE:
2235 case MONO_WRAPPER_ALLOC: {
2236 AllocatorWrapperInfo *info = mono_marshal_get_wrapper_info (method);
2238 /* The GC name is saved once in MonoAotFileInfo */
2239 g_assert (info->alloc_type != -1);
2240 encode_value (info->alloc_type, p, &p);
2243 case MONO_WRAPPER_WRITE_BARRIER:
2245 case MONO_WRAPPER_STELEMREF: {
2246 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2249 encode_value (info->subtype, p, &p);
2250 if (info->subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF)
2251 encode_value (info->d.virtual_stelemref.kind, p, &p);
2254 case MONO_WRAPPER_UNKNOWN: {
2255 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2258 encode_value (info->subtype, p, &p);
2259 if (info->subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE ||
2260 info->subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR)
2261 encode_klass_ref (acfg, method->klass, p, &p);
2262 else if (info->subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER)
2263 encode_method_ref (acfg, info->d.synchronized_inner.method, p, &p);
2266 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
2267 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2270 encode_value (info->subtype, p, &p);
2271 if (info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
2272 strcpy ((char*)p, method->name);
2273 p += strlen (method->name) + 1;
2274 } else if (info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT) {
2275 encode_method_ref (acfg, info->d.managed_to_native.method, p, &p);
2277 g_assert (info->subtype == WRAPPER_SUBTYPE_NONE);
2278 encode_method_ref (acfg, info->d.managed_to_native.method, p, &p);
2282 case MONO_WRAPPER_SYNCHRONIZED: {
2285 m = mono_marshal_method_from_wrapper (method);
2287 g_assert (m != method);
2288 encode_method_ref (acfg, m, p, &p);
2291 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
2292 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2295 encode_value (info->subtype, p, &p);
2297 if (info->subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) {
2298 encode_value (info->d.element_addr.rank, p, &p);
2299 encode_value (info->d.element_addr.elem_size, p, &p);
2300 } else if (info->subtype == WRAPPER_SUBTYPE_STRING_CTOR) {
2301 encode_method_ref (acfg, info->d.string_ctor.method, p, &p);
2303 g_assert_not_reached ();
2307 case MONO_WRAPPER_CASTCLASS: {
2308 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2311 encode_value (info->subtype, p, &p);
2314 case MONO_WRAPPER_RUNTIME_INVOKE: {
2315 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2318 encode_value (info->subtype, p, &p);
2319 if (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL)
2320 encode_method_ref (acfg, info->d.runtime_invoke.method, p, &p);
2322 MonoMethodSignature *sig;
2324 encode_value (0, p, &p);
2326 sig = mono_method_signature (method);
2327 encode_signature (acfg, sig, p, &p);
2331 case MONO_WRAPPER_DELEGATE_INVOKE:
2332 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
2333 case MONO_WRAPPER_DELEGATE_END_INVOKE: {
2334 MonoMethodSignature *sig = mono_method_signature (method);
2335 encode_signature (acfg, sig, p, &p);
2338 case MONO_WRAPPER_NATIVE_TO_MANAGED: {
2339 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2342 encode_method_ref (acfg, info->d.native_to_managed.method, p, &p);
2343 encode_klass_ref (acfg, info->d.native_to_managed.klass, p, &p);
2347 g_assert_not_reached ();
2349 } else if (mono_method_signature (method)->is_inflated) {
2351 * This is a generic method, find the original token which referenced it and
2353 * Obtain the token from information recorded by the JIT.
2355 ji = g_hash_table_lookup (acfg->token_info_hash, method);
2357 image_index = get_image_index (acfg, ji->image);
2358 g_assert (image_index < MAX_IMAGE_INDEX);
2361 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
2362 encode_value (image_index, p, &p);
2363 encode_value (token, p, &p);
2365 MonoMethod *declaring;
2366 MonoGenericContext *context = mono_method_get_context (method);
2368 g_assert (method->is_inflated);
2369 declaring = ((MonoMethodInflated*)method)->declaring;
2372 * This might be a non-generic method of a generic instance, which
2373 * doesn't have a token since the reference is generated by the JIT
2374 * like Nullable:Box/Unbox, or by generic sharing.
2377 encode_value ((MONO_AOT_METHODREF_GINST << 24), p, &p);
2378 /* Encode the klass */
2379 encode_klass_ref (acfg, method->klass, p, &p);
2380 /* Encode the method */
2381 image_index = get_image_index (acfg, method->klass->image);
2382 g_assert (image_index < MAX_IMAGE_INDEX);
2383 g_assert (declaring->token);
2384 token = declaring->token;
2385 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
2386 encode_value (image_index, p, &p);
2387 encode_value (token, p, &p);
2388 encode_generic_context (acfg, context, p, &p);
2390 } else if (token == 0) {
2391 /* This might be a method of a constructed type like int[,].Set */
2392 /* Obtain the token from information recorded by the JIT */
2393 ji = g_hash_table_lookup (acfg->token_info_hash, method);
2395 image_index = get_image_index (acfg, ji->image);
2396 g_assert (image_index < MAX_IMAGE_INDEX);
2399 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
2400 encode_value (image_index, p, &p);
2401 encode_value (token, p, &p);
2404 g_assert (method->klass->rank);
2406 /* Encode directly */
2407 encode_value ((MONO_AOT_METHODREF_ARRAY << 24), p, &p);
2408 encode_klass_ref (acfg, method->klass, p, &p);
2409 if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank)
2410 encode_value (0, p, &p);
2411 else if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank * 2)
2412 encode_value (1, p, &p);
2413 else if (!strcmp (method->name, "Get"))
2414 encode_value (2, p, &p);
2415 else if (!strcmp (method->name, "Address"))
2416 encode_value (3, p, &p);
2417 else if (!strcmp (method->name, "Set"))
2418 encode_value (4, p, &p);
2420 g_assert_not_reached ();
2423 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
2424 encode_value ((image_index << 24) | mono_metadata_token_index (token), p, &p);
2430 compare_patches (gconstpointer a, gconstpointer b)
2434 i = (*(MonoJumpInfo**)a)->ip.i;
2435 j = (*(MonoJumpInfo**)b)->ip.i;
2446 static G_GNUC_UNUSED char*
2447 patch_to_string (MonoJumpInfo *patch_info)
2451 str = g_string_new ("");
2453 g_string_append_printf (str, "%s(", get_patch_name (patch_info->type));
2455 switch (patch_info->type) {
2456 case MONO_PATCH_INFO_VTABLE:
2457 mono_type_get_desc (str, &patch_info->data.klass->byval_arg, TRUE);
2462 g_string_append_printf (str, ")");
2463 return g_string_free (str, FALSE);
2469 * Return whenever PATCH_INFO refers to a direct call, and thus requires a
2472 static inline gboolean
2473 is_plt_patch (MonoJumpInfo *patch_info)
2475 switch (patch_info->type) {
2476 case MONO_PATCH_INFO_METHOD:
2477 case MONO_PATCH_INFO_INTERNAL_METHOD:
2478 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
2479 case MONO_PATCH_INFO_ICALL_ADDR:
2480 case MONO_PATCH_INFO_CLASS_INIT:
2481 case MONO_PATCH_INFO_RGCTX_FETCH:
2482 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
2483 case MONO_PATCH_INFO_MONITOR_ENTER:
2484 case MONO_PATCH_INFO_MONITOR_EXIT:
2485 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
2495 * Return the symbol identifying the plt entry PLT_OFFSET.
2498 get_plt_symbol (MonoAotCompile *acfg, int plt_offset, MonoJumpInfo *patch_info)
2502 * The Apple linker reorganizes object files, so it doesn't like branches to local
2503 * labels, since those have no relocations.
2505 return g_strdup_printf ("%sp_%d", acfg->llvm_label_prefix, plt_offset);
2507 return g_strdup_printf ("%sp_%d", acfg->temp_prefix, plt_offset);
2514 * Return a PLT entry which belongs to the method identified by PATCH_INFO.
2516 static MonoPltEntry*
2517 get_plt_entry (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
2521 if (!is_plt_patch (patch_info))
2524 res = g_hash_table_lookup (acfg->patch_to_plt_entry, patch_info);
2526 // FIXME: This breaks the calculation of final_got_size
2527 if (!acfg->llvm && patch_info->type == MONO_PATCH_INFO_METHOD && (patch_info->data.method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)) {
2529 * Allocate a separate PLT slot for each such patch, since some plt
2530 * entries will refer to the method itself, and some will refer to the
2537 MonoJumpInfo *new_ji;
2539 g_assert (!acfg->final_got_size);
2541 new_ji = mono_patch_info_dup_mp (acfg->mempool, patch_info);
2543 res = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoPltEntry));
2544 res->plt_offset = acfg->plt_offset;
2546 res->symbol = get_plt_symbol (acfg, res->plt_offset, patch_info);
2547 if (acfg->aot_opts.write_symbols)
2548 res->debug_sym = get_plt_entry_debug_sym (acfg, res->ji, acfg->plt_entry_debug_sym_cache);
2550 res->llvm_symbol = g_strdup_printf ("%s_%s_llvm", res->symbol, res->debug_sym);
2552 res->llvm_symbol = g_strdup_printf ("%s_llvm", res->symbol);
2554 g_hash_table_insert (acfg->patch_to_plt_entry, new_ji, res);
2556 g_hash_table_insert (acfg->plt_offset_to_entry, GUINT_TO_POINTER (res->plt_offset), res);
2558 acfg->plt_offset ++;
2567 * Returns the offset of the GOT slot where the runtime object resulting from resolving
2568 * JI could be found if it exists, otherwise allocates a new one.
2571 get_got_offset (MonoAotCompile *acfg, MonoJumpInfo *ji)
2575 got_offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_got_offset_by_type [ji->type], ji));
2577 return got_offset - 1;
2579 got_offset = acfg->got_offset;
2580 acfg->got_offset ++;
2582 if (acfg->final_got_size)
2583 g_assert (got_offset < acfg->final_got_size);
2585 acfg->stats.got_slots ++;
2586 acfg->stats.got_slot_types [ji->type] ++;
2588 g_hash_table_insert (acfg->patch_to_got_offset, ji, GUINT_TO_POINTER (got_offset + 1));
2589 g_hash_table_insert (acfg->patch_to_got_offset_by_type [ji->type], ji, GUINT_TO_POINTER (got_offset + 1));
2590 g_ptr_array_add (acfg->got_patches, ji);
2595 /* Add a method to the list of methods which need to be emitted */
2597 add_method_with_index (MonoAotCompile *acfg, MonoMethod *method, int index, gboolean extra)
2600 if (!g_hash_table_lookup (acfg->method_indexes, method)) {
2601 g_ptr_array_add (acfg->methods, method);
2602 g_hash_table_insert (acfg->method_indexes, method, GUINT_TO_POINTER (index + 1));
2603 acfg->nmethods = acfg->methods->len + 1;
2606 if (method->wrapper_type || extra)
2607 g_ptr_array_add (acfg->extra_methods, method);
2611 get_method_index (MonoAotCompile *acfg, MonoMethod *method)
2613 int index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
2621 add_method_full (MonoAotCompile *acfg, MonoMethod *method, gboolean extra, int depth)
2625 index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
2629 index = acfg->method_index;
2630 add_method_with_index (acfg, method, index, extra);
2632 g_ptr_array_add (acfg->method_order, GUINT_TO_POINTER (index));
2634 g_hash_table_insert (acfg->method_depth, method, GUINT_TO_POINTER (depth));
2636 acfg->method_index ++;
2642 add_method (MonoAotCompile *acfg, MonoMethod *method)
2644 return add_method_full (acfg, method, FALSE, 0);
2648 add_extra_method (MonoAotCompile *acfg, MonoMethod *method)
2650 add_method_full (acfg, method, TRUE, 0);
2654 add_extra_method_with_depth (MonoAotCompile *acfg, MonoMethod *method, int depth)
2656 if (acfg->aot_opts.log_generics)
2657 printf ("%*sAdding method %s.\n", depth, "", mono_method_full_name (method, TRUE));
2659 add_method_full (acfg, method, TRUE, depth);
2663 add_jit_icall_wrapper (gpointer key, gpointer value, gpointer user_data)
2665 MonoAotCompile *acfg = user_data;
2666 MonoJitICallInfo *callinfo = value;
2667 MonoMethod *wrapper;
2673 name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
2674 wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_for_pending_exc);
2677 add_method (acfg, wrapper);
2681 get_runtime_invoke_sig (MonoMethodSignature *sig)
2683 MonoMethodBuilder *mb;
2686 mb = mono_mb_new (mono_defaults.object_class, "FOO", MONO_WRAPPER_NONE);
2687 m = mono_mb_create_method (mb, sig, 16);
2688 return mono_marshal_get_runtime_invoke (m, FALSE);
2692 can_marshal_struct (MonoClass *klass)
2694 MonoClassField *field;
2695 gboolean can_marshal = TRUE;
2696 gpointer iter = NULL;
2698 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2701 /* Only allow a few field types to avoid asserts in the marshalling code */
2702 while ((field = mono_class_get_fields (klass, &iter))) {
2703 if ((field->type->attrs & FIELD_ATTRIBUTE_STATIC))
2706 switch (field->type->type) {
2711 case MONO_TYPE_BOOLEAN:
2714 case MONO_TYPE_CHAR:
2722 case MONO_TYPE_STRING:
2724 case MONO_TYPE_VALUETYPE:
2725 if (!mono_class_from_mono_type (field->type)->enumtype && !can_marshal_struct (mono_class_from_mono_type (field->type)))
2726 can_marshal = FALSE;
2729 can_marshal = FALSE;
2735 /* Its hard to compute whenever these can be marshalled or not */
2736 if (!strcmp (klass->name_space, "System.Net.NetworkInformation.MacOsStructs"))
2743 add_wrappers (MonoAotCompile *acfg)
2745 MonoMethod *method, *m;
2747 MonoMethodSignature *sig, *csig;
2751 * FIXME: Instead of AOTing all the wrappers, it might be better to redesign them
2752 * so there is only one wrapper of a given type, or inlining their contents into their
2757 * FIXME: This depends on the fact that different wrappers have different
2761 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2763 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2764 gboolean skip = FALSE;
2766 method = mono_get_method (acfg->image, token, NULL);
2768 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2769 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
2770 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
2773 if (method->is_generic || method->klass->generic_container)
2776 /* Skip methods which can not be handled by get_runtime_invoke () */
2777 sig = mono_method_signature (method);
2780 if ((sig->ret->type == MONO_TYPE_PTR) ||
2781 (sig->ret->type == MONO_TYPE_TYPEDBYREF))
2784 for (j = 0; j < sig->param_count; j++) {
2785 if (sig->params [j]->type == MONO_TYPE_TYPEDBYREF)
2789 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
2790 if (!method->klass->contextbound) {
2791 MonoDynCallInfo *info = mono_arch_dyn_call_prepare (sig);
2792 gboolean has_nullable = FALSE;
2794 for (j = 0; j < sig->param_count; j++) {
2795 if (sig->params [j]->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (sig->params [j])))
2796 has_nullable = TRUE;
2799 if (info && !has_nullable) {
2800 /* Supported by the dynamic runtime-invoke wrapper */
2808 //printf ("%s\n", mono_method_full_name (method, TRUE));
2809 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
2813 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
2814 #ifdef MONO_ARCH_HAVE_TLS_GET
2815 MonoMethodDesc *desc;
2816 MonoMethod *orig_method;
2820 /* Runtime invoke wrappers */
2822 /* void runtime-invoke () [.cctor] */
2823 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2824 csig->ret = &mono_defaults.void_class->byval_arg;
2825 add_method (acfg, get_runtime_invoke_sig (csig));
2827 /* void runtime-invoke () [Finalize] */
2828 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2830 csig->ret = &mono_defaults.void_class->byval_arg;
2831 add_method (acfg, get_runtime_invoke_sig (csig));
2833 /* void runtime-invoke (string) [exception ctor] */
2834 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2836 csig->ret = &mono_defaults.void_class->byval_arg;
2837 csig->params [0] = &mono_defaults.string_class->byval_arg;
2838 add_method (acfg, get_runtime_invoke_sig (csig));
2840 /* void runtime-invoke (string, string) [exception ctor] */
2841 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2843 csig->ret = &mono_defaults.void_class->byval_arg;
2844 csig->params [0] = &mono_defaults.string_class->byval_arg;
2845 csig->params [1] = &mono_defaults.string_class->byval_arg;
2846 add_method (acfg, get_runtime_invoke_sig (csig));
2848 /* string runtime-invoke () [Exception.ToString ()] */
2849 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2851 csig->ret = &mono_defaults.string_class->byval_arg;
2852 add_method (acfg, get_runtime_invoke_sig (csig));
2854 /* void runtime-invoke (string, Exception) [exception ctor] */
2855 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2857 csig->ret = &mono_defaults.void_class->byval_arg;
2858 csig->params [0] = &mono_defaults.string_class->byval_arg;
2859 csig->params [1] = &mono_defaults.exception_class->byval_arg;
2860 add_method (acfg, get_runtime_invoke_sig (csig));
2862 /* Assembly runtime-invoke (string, bool) [DoAssemblyResolve] */
2863 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2865 csig->ret = &(mono_class_from_name (
2866 mono_defaults.corlib, "System.Reflection", "Assembly"))->byval_arg;
2867 csig->params [0] = &mono_defaults.string_class->byval_arg;
2868 csig->params [1] = &mono_defaults.boolean_class->byval_arg;
2869 add_method (acfg, get_runtime_invoke_sig (csig));
2871 /* runtime-invoke used by finalizers */
2872 add_method (acfg, mono_marshal_get_runtime_invoke (mono_class_get_method_from_name_flags (mono_defaults.object_class, "Finalize", 0, 0), TRUE));
2874 /* This is used by mono_runtime_capture_context () */
2875 method = mono_get_context_capture_method ();
2877 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
2879 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
2880 add_method (acfg, mono_marshal_get_runtime_invoke_dynamic ());
2883 /* JIT icall wrappers */
2884 /* FIXME: locking */
2885 g_hash_table_foreach (mono_get_jit_icall_info (), add_jit_icall_wrapper, acfg);
2888 add_method (acfg, mono_marshal_get_stelemref ());
2890 #ifdef MONO_ARCH_HAVE_TLS_GET
2891 /* Managed Allocators */
2892 nallocators = mono_gc_get_managed_allocator_types ();
2893 for (i = 0; i < nallocators; ++i) {
2894 m = mono_gc_get_managed_allocator_by_type (i);
2896 add_method (acfg, m);
2899 /* Monitor Enter/Exit */
2900 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
2901 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
2902 /* This is a v4 method */
2904 method = mono_monitor_get_fast_path (orig_method);
2906 add_method (acfg, method);
2908 mono_method_desc_free (desc);
2910 desc = mono_method_desc_new ("Monitor:Exit(object)", FALSE);
2911 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
2912 g_assert (orig_method);
2913 mono_method_desc_free (desc);
2914 method = mono_monitor_get_fast_path (orig_method);
2916 add_method (acfg, method);
2919 /* Stelemref wrappers */
2920 /* There is only a constant number of these, iterating over all types should handle them all */
2921 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
2924 token = MONO_TOKEN_TYPE_DEF | (i + 1);
2925 klass = mono_class_get (acfg->image, token);
2927 add_method (acfg, mono_marshal_get_virtual_stelemref (mono_array_class_get (klass, 1)));
2929 mono_loader_clear_error ();
2932 /* castclass_with_check wrapper */
2933 add_method (acfg, mono_marshal_get_castclass_with_cache ());
2934 /* isinst_with_check wrapper */
2935 add_method (acfg, mono_marshal_get_isinst_with_cache ());
2937 #if defined(MONO_ARCH_ENABLE_MONITOR_IL_FASTPATH)
2939 MonoMethodDesc *desc;
2942 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
2943 m = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
2944 mono_method_desc_free (desc);
2946 m = mono_monitor_get_fast_path (m);
2948 add_method (acfg, m);
2955 * remoting-invoke-with-check wrappers are very frequent, so avoid emitting them,
2956 * we use the original method instead at runtime.
2957 * Since full-aot doesn't support remoting, this is not a problem.
2960 /* remoting-invoke wrappers */
2961 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2962 MonoMethodSignature *sig;
2964 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2965 method = mono_get_method (acfg->image, token, NULL);
2967 sig = mono_method_signature (method);
2969 if (sig->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class)) {
2970 m = mono_marshal_get_remoting_invoke_with_check (method);
2972 add_method (acfg, m);
2977 /* delegate-invoke wrappers */
2978 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
2980 MonoCustomAttrInfo *cattr;
2982 token = MONO_TOKEN_TYPE_DEF | (i + 1);
2983 klass = mono_class_get (acfg->image, token);
2986 mono_loader_clear_error ();
2990 if (klass->delegate && klass != mono_defaults.delegate_class && klass != mono_defaults.multicastdelegate_class && !klass->generic_container) {
2991 method = mono_get_delegate_invoke (klass);
2993 m = mono_marshal_get_delegate_invoke (method, NULL);
2995 add_method (acfg, m);
2997 method = mono_class_get_method_from_name_flags (klass, "BeginInvoke", -1, 0);
2999 add_method (acfg, mono_marshal_get_delegate_begin_invoke (method));
3001 method = mono_class_get_method_from_name_flags (klass, "EndInvoke", -1, 0);
3003 add_method (acfg, mono_marshal_get_delegate_end_invoke (method));
3005 cattr = mono_custom_attrs_from_class (klass);
3010 for (j = 0; j < cattr->num_attrs; ++j)
3011 if (cattr->attrs [j].ctor && !strcmp (cattr->attrs [j].ctor->klass->name, "MonoNativeFunctionWrapperAttribute"))
3013 if (j < cattr->num_attrs)
3014 add_method (acfg, mono_marshal_get_native_func_wrapper_aot (klass));
3019 /* Synchronized wrappers */
3020 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3021 token = MONO_TOKEN_METHOD_DEF | (i + 1);
3022 method = mono_get_method (acfg->image, token, NULL);
3024 if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED && !method->is_generic)
3025 add_method (acfg, mono_marshal_get_synchronized_wrapper (method));
3028 /* pinvoke wrappers */
3029 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3031 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
3033 method = mono_get_method (acfg->image, token, NULL);
3035 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
3036 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
3037 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
3041 /* native-to-managed wrappers */
3042 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3044 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
3045 MonoCustomAttrInfo *cattr;
3048 method = mono_get_method (acfg->image, token, NULL);
3051 * Only generate native-to-managed wrappers for methods which have an
3052 * attribute named MonoPInvokeCallbackAttribute. We search for the attribute by
3053 * name to avoid defining a new assembly to contain it.
3055 cattr = mono_custom_attrs_from_method (method);
3058 for (j = 0; j < cattr->num_attrs; ++j)
3059 if (cattr->attrs [j].ctor && !strcmp (cattr->attrs [j].ctor->klass->name, "MonoPInvokeCallbackAttribute"))
3061 if (j < cattr->num_attrs) {
3062 MonoCustomAttrEntry *e = &cattr->attrs [j];
3063 MonoMethodSignature *sig = mono_method_signature (e->ctor);
3064 const char *p = (const char*)e->data;
3066 int slen, num_named, named_type, data_type;
3070 char *export_name = NULL;
3071 MonoMethod *wrapper;
3073 /* this cannot be enforced by the C# compiler so we must give the user some warning before aborting */
3074 if (!(method->flags & METHOD_ATTRIBUTE_STATIC)) {
3075 g_warning ("AOT restriction: Method '%s' must be static since it is decorated with [MonoPInvokeCallback]. See http://ios.xamarin.com/Documentation/Limitations#Reverse_Callbacks",
3076 mono_method_full_name (method, TRUE));
3080 g_assert (sig->param_count == 1);
3081 g_assert (sig->params [0]->type == MONO_TYPE_CLASS && !strcmp (mono_class_from_mono_type (sig->params [0])->name, "Type"));
3084 * Decode the cattr manually since we can't create objects
3085 * during aot compilation.
3091 /* From load_cattr_value () in reflection.c */
3092 slen = mono_metadata_decode_value (p, &p);
3093 n = g_memdup (p, slen + 1);
3095 t = mono_reflection_type_from_name (n, acfg->image);
3099 klass = mono_class_from_mono_type (t);
3100 g_assert (klass->parent == mono_defaults.multicastdelegate_class);
3104 num_named = read16 (p);
3107 g_assert (num_named < 2);
3108 if (num_named == 1) {
3111 MonoType *prop_type;
3113 /* parse ExportSymbol attribute */
3115 named_type = *named;
3120 name_len = mono_metadata_decode_blob_size (named, &named);
3121 name = g_malloc (name_len + 1);
3122 memcpy (name, named, name_len);
3123 name [name_len] = 0;
3126 g_assert (named_type == 0x54);
3127 g_assert (!strcmp (name, "ExportSymbol"));
3129 prop_type = &mono_defaults.string_class->byval_arg;
3131 /* load_cattr_value (), string case */
3132 g_assert (*named != (char)0xff);
3133 slen = mono_metadata_decode_value (named, &named);
3134 export_name = g_malloc (slen + 1);
3135 memcpy (export_name, named, slen);
3136 export_name [slen] = 0;
3140 wrapper = mono_marshal_get_managed_wrapper (method, klass, 0);
3141 add_method (acfg, wrapper);
3143 g_hash_table_insert (acfg->export_names, wrapper, export_name);
3147 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
3148 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
3149 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
3153 /* StructureToPtr/PtrToStructure wrappers */
3154 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
3157 token = MONO_TOKEN_TYPE_DEF | (i + 1);
3158 klass = mono_class_get (acfg->image, token);
3161 mono_loader_clear_error ();
3165 if (klass->valuetype && !klass->generic_container && can_marshal_struct (klass)) {
3166 add_method (acfg, mono_marshal_get_struct_to_ptr (klass));
3167 add_method (acfg, mono_marshal_get_ptr_to_struct (klass));
3173 has_type_vars (MonoClass *klass)
3175 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
3178 return has_type_vars (klass->element_class);
3179 if (klass->generic_class) {
3180 MonoGenericContext *context = &klass->generic_class->context;
3181 if (context->class_inst) {
3184 for (i = 0; i < context->class_inst->type_argc; ++i)
3185 if (has_type_vars (mono_class_from_mono_type (context->class_inst->type_argv [i])))
3193 method_has_type_vars (MonoMethod *method)
3195 if (has_type_vars (method->klass))
3198 if (method->is_inflated) {
3199 MonoGenericContext *context = mono_method_get_context (method);
3200 if (context->method_inst) {
3203 for (i = 0; i < context->method_inst->type_argc; ++i)
3204 if (has_type_vars (mono_class_from_mono_type (context->method_inst->type_argv [i])))
3211 static void add_generic_class_with_depth (MonoAotCompile *acfg, MonoClass *klass, int depth, const char *ref);
3214 add_generic_class (MonoAotCompile *acfg, MonoClass *klass, gboolean force, const char *ref)
3216 /* This might lead to a huge code blowup so only do it if neccesary */
3217 if (!acfg->aot_opts.full_aot && !force)
3220 add_generic_class_with_depth (acfg, klass, 0, ref);
3224 check_type_depth (MonoType *t, int depth)
3232 case MONO_TYPE_GENERICINST: {
3233 MonoGenericClass *gklass = t->data.generic_class;
3234 MonoGenericInst *ginst = gklass->context.class_inst;
3237 for (i = 0; i < ginst->type_argc; ++i) {
3238 if (check_type_depth (ginst->type_argv [i], depth + 1))
3252 * add_generic_class:
3254 * Add all methods of a generic class.
3257 add_generic_class_with_depth (MonoAotCompile *acfg, MonoClass *klass, int depth, const char *ref)
3260 MonoClassField *field;
3263 if (!acfg->ginst_hash)
3264 acfg->ginst_hash = g_hash_table_new (NULL, NULL);
3266 mono_class_init (klass);
3268 if (klass->generic_class && klass->generic_class->context.class_inst->is_open)
3271 if (has_type_vars (klass))
3274 if (!klass->generic_class && !klass->rank)
3277 if (!acfg->ginst_hash)
3278 acfg->ginst_hash = g_hash_table_new (NULL, NULL);
3280 if (g_hash_table_lookup (acfg->ginst_hash, klass))
3283 if (check_type_depth (&klass->byval_arg, 0))
3286 if (acfg->aot_opts.log_generics)
3287 printf ("%*sAdding generic instance %s [%s].\n", depth, "", mono_type_full_name (&klass->byval_arg), ref);
3289 g_hash_table_insert (acfg->ginst_hash, klass, klass);
3292 while ((method = mono_class_get_methods (klass, &iter))) {
3293 if (mono_method_is_generic_sharable_impl_full (method, FALSE, FALSE))
3297 if (method->is_generic)
3302 * FIXME: Instances which are referenced by these methods are not added,
3303 * for example Array.Resize<int> for List<int>.Add ().
3305 add_extra_method_with_depth (acfg, method, depth + 1);
3309 while ((field = mono_class_get_fields (klass, &iter))) {
3310 if (field->type->type == MONO_TYPE_GENERICINST)
3311 add_generic_class_with_depth (acfg, mono_class_from_mono_type (field->type), depth + 1, "field");
3314 if (klass->delegate) {
3315 method = mono_get_delegate_invoke (klass);
3317 method = mono_marshal_get_delegate_invoke (method, NULL);
3319 if (acfg->aot_opts.log_generics)
3320 printf ("%*sAdding method %s.\n", depth, "", mono_method_full_name (method, TRUE));
3322 add_method (acfg, method);
3325 /* Add superclasses */
3327 add_generic_class_with_depth (acfg, klass->parent, depth, "parent");
3330 * For ICollection<T>, add instances of the helper methods
3331 * in Array, since a T[] could be cast to ICollection<T>.
3333 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") &&
3334 (!strcmp(klass->name, "ICollection`1") || !strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IList`1") || !strcmp (klass->name, "IEnumerator`1"))) {
3335 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
3336 MonoClass *array_class = mono_bounded_array_class_get (tclass, 1, FALSE);
3340 if (!strcmp (klass->name, "IEnumerator`1"))
3341 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, "IEnumerable`1");
3343 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
3345 /* Add the T[]/InternalEnumerator class */
3346 if (!strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IEnumerator`1")) {
3350 while ((nclass = mono_class_get_nested_types (array_class->parent, &iter))) {
3351 if (!strcmp (nclass->name, "InternalEnumerator`1"))
3355 nclass = mono_class_inflate_generic_class (nclass, mono_generic_class_get_context (klass->generic_class));
3356 add_generic_class (acfg, nclass, FALSE, "ICollection<T>");
3360 while ((method = mono_class_get_methods (array_class, &iter))) {
3361 if (strstr (method->name, name_prefix)) {
3362 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
3364 add_extra_method_with_depth (acfg, m, depth);
3368 g_free (name_prefix);
3371 /* Add an instance of GenericComparer<T> which is created dynamically by Comparer<T> */
3372 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "Comparer`1")) {
3373 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
3374 MonoClass *icomparable, *gcomparer;
3375 MonoGenericContext ctx;
3376 MonoType *args [16];
3378 memset (&ctx, 0, sizeof (ctx));
3380 icomparable = mono_class_from_name (mono_defaults.corlib, "System", "IComparable`1");
3381 g_assert (icomparable);
3382 args [0] = &tclass->byval_arg;
3383 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
3385 if (mono_class_is_assignable_from (mono_class_inflate_generic_class (icomparable, &ctx), tclass)) {
3386 gcomparer = mono_class_from_name (mono_defaults.corlib, "System.Collections.Generic", "GenericComparer`1");
3387 g_assert (gcomparer);
3388 add_generic_class (acfg, mono_class_inflate_generic_class (gcomparer, &ctx), FALSE, "Comparer<T>");
3392 /* Add an instance of GenericEqualityComparer<T> which is created dynamically by EqualityComparer<T> */
3393 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "EqualityComparer`1")) {
3394 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
3395 MonoClass *iface, *gcomparer;
3396 MonoGenericContext ctx;
3397 MonoType *args [16];
3399 memset (&ctx, 0, sizeof (ctx));
3401 iface = mono_class_from_name (mono_defaults.corlib, "System", "IEquatable`1");
3403 args [0] = &tclass->byval_arg;
3404 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
3406 if (mono_class_is_assignable_from (mono_class_inflate_generic_class (iface, &ctx), tclass)) {
3407 gcomparer = mono_class_from_name (mono_defaults.corlib, "System.Collections.Generic", "GenericEqualityComparer`1");
3408 g_assert (gcomparer);
3409 add_generic_class (acfg, mono_class_inflate_generic_class (gcomparer, &ctx), FALSE, "EqualityComparer<T>");
3415 add_instances_of (MonoAotCompile *acfg, MonoClass *klass, MonoType **insts, int ninsts, gboolean force)
3418 MonoGenericContext ctx;
3419 MonoType *args [16];
3421 memset (&ctx, 0, sizeof (ctx));
3423 for (i = 0; i < ninsts; ++i) {
3424 args [0] = insts [i];
3425 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
3426 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx), force, "");
3431 add_types_from_method_header (MonoAotCompile *acfg, MonoMethod *method)
3433 MonoMethodHeader *header;
3434 MonoMethodSignature *sig;
3437 depth = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_depth, method));
3439 sig = mono_method_signature (method);
3442 for (j = 0; j < sig->param_count; ++j)
3443 if (sig->params [j]->type == MONO_TYPE_GENERICINST)
3444 add_generic_class_with_depth (acfg, mono_class_from_mono_type (sig->params [j]), depth + 1, "arg");
3447 header = mono_method_get_header (method);
3450 for (j = 0; j < header->num_locals; ++j)
3451 if (header->locals [j]->type == MONO_TYPE_GENERICINST)
3452 add_generic_class_with_depth (acfg, mono_class_from_mono_type (header->locals [j]), depth + 1, "local");
3457 * add_generic_instances:
3459 * Add instances referenced by the METHODSPEC/TYPESPEC table.
3462 add_generic_instances (MonoAotCompile *acfg)
3467 MonoGenericContext *context;
3469 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHODSPEC].rows; ++i) {
3470 token = MONO_TOKEN_METHOD_SPEC | (i + 1);
3471 method = mono_get_method (acfg->image, token, NULL);
3476 if (method->klass->image != acfg->image)
3479 context = mono_method_get_context (method);
3481 if (context && ((context->class_inst && context->class_inst->is_open)))
3485 * For open methods, create an instantiation which can be passed to the JIT.
3486 * FIXME: Handle class_inst as well.
3488 if (context && context->method_inst && context->method_inst->is_open) {
3489 MonoGenericContext shared_context;
3490 MonoGenericInst *inst;
3491 MonoType **type_argv;
3493 MonoMethod *declaring_method;
3494 gboolean supported = TRUE;
3496 /* Check that the context doesn't contain open constructed types */
3497 if (context->class_inst) {
3498 inst = context->class_inst;
3499 for (i = 0; i < inst->type_argc; ++i) {
3500 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)
3502 if (mono_class_is_open_constructed_type (inst->type_argv [i]))
3506 if (context->method_inst) {
3507 inst = context->method_inst;
3508 for (i = 0; i < inst->type_argc; ++i) {
3509 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)
3511 if (mono_class_is_open_constructed_type (inst->type_argv [i]))
3519 memset (&shared_context, 0, sizeof (MonoGenericContext));
3521 inst = context->class_inst;
3523 type_argv = g_new0 (MonoType*, inst->type_argc);
3524 for (i = 0; i < inst->type_argc; ++i) {
3525 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)
3526 type_argv [i] = &mono_defaults.object_class->byval_arg;
3528 type_argv [i] = inst->type_argv [i];
3531 shared_context.class_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
3535 inst = context->method_inst;
3537 type_argv = g_new0 (MonoType*, inst->type_argc);
3538 for (i = 0; i < inst->type_argc; ++i) {
3539 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)
3540 type_argv [i] = &mono_defaults.object_class->byval_arg;
3542 type_argv [i] = inst->type_argv [i];
3545 shared_context.method_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
3549 if (method->is_generic || method->klass->generic_container)
3550 declaring_method = method;
3552 declaring_method = mono_method_get_declaring_generic_method (method);
3554 method = mono_class_inflate_generic_method (declaring_method, &shared_context);
3558 * If the method is fully sharable, it was already added in place of its
3559 * generic definition.
3561 if (mono_method_is_generic_sharable_impl_full (method, FALSE, FALSE))
3565 * FIXME: Partially shared methods are not shared here, so we end up with
3566 * many identical methods.
3568 add_extra_method (acfg, method);
3571 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
3574 token = MONO_TOKEN_TYPE_SPEC | (i + 1);
3576 klass = mono_class_get (acfg->image, token);
3577 if (!klass || klass->rank) {
3578 mono_loader_clear_error ();
3582 add_generic_class (acfg, klass, FALSE, "typespec");
3585 /* Add types of args/locals */
3586 for (i = 0; i < acfg->methods->len; ++i) {
3587 method = g_ptr_array_index (acfg->methods, i);
3588 add_types_from_method_header (acfg, method);
3591 if (acfg->image == mono_defaults.corlib) {
3593 MonoType *insts [256];
3596 insts [ninsts ++] = &mono_defaults.byte_class->byval_arg;
3597 insts [ninsts ++] = &mono_defaults.sbyte_class->byval_arg;
3598 insts [ninsts ++] = &mono_defaults.int16_class->byval_arg;
3599 insts [ninsts ++] = &mono_defaults.uint16_class->byval_arg;
3600 insts [ninsts ++] = &mono_defaults.int32_class->byval_arg;
3601 insts [ninsts ++] = &mono_defaults.uint32_class->byval_arg;
3602 insts [ninsts ++] = &mono_defaults.int64_class->byval_arg;
3603 insts [ninsts ++] = &mono_defaults.uint64_class->byval_arg;
3604 insts [ninsts ++] = &mono_defaults.single_class->byval_arg;
3605 insts [ninsts ++] = &mono_defaults.double_class->byval_arg;
3606 insts [ninsts ++] = &mono_defaults.char_class->byval_arg;
3607 insts [ninsts ++] = &mono_defaults.boolean_class->byval_arg;
3609 /* Add GenericComparer<T> instances for primitive types for Enum.ToString () */
3610 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericComparer`1");
3612 add_instances_of (acfg, klass, insts, ninsts, TRUE);
3613 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericEqualityComparer`1");
3615 add_instances_of (acfg, klass, insts, ninsts, TRUE);
3617 /* Add instances of the array generic interfaces for primitive types */
3618 /* This will add instances of the InternalArray_ helper methods in Array too */
3619 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "ICollection`1");
3621 add_instances_of (acfg, klass, insts, ninsts, TRUE);
3622 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "IList`1");
3624 add_instances_of (acfg, klass, insts, ninsts, TRUE);
3625 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "IEnumerable`1");
3627 add_instances_of (acfg, klass, insts, ninsts, TRUE);
3630 * Add a managed-to-native wrapper of Array.GetGenericValueImpl<object>, which is
3631 * used for all instances of GetGenericValueImpl by the AOT runtime.
3634 MonoGenericContext ctx;
3635 MonoType *args [16];
3636 MonoMethod *get_method;
3637 MonoClass *array_klass = mono_array_class_get (mono_defaults.object_class, 1)->parent;
3639 get_method = mono_class_get_method_from_name (array_klass, "GetGenericValueImpl", 2);
3642 memset (&ctx, 0, sizeof (ctx));
3643 args [0] = &mono_defaults.object_class->byval_arg;
3644 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
3645 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (get_method, &ctx), TRUE, TRUE));
3649 /* Same for CompareExchange<T>/Exchange<T> */
3651 MonoGenericContext ctx;
3652 MonoType *args [16];
3654 MonoClass *interlocked_klass = mono_class_from_name (mono_defaults.corlib, "System.Threading", "Interlocked");
3655 gpointer iter = NULL;
3657 while ((m = mono_class_get_methods (interlocked_klass, &iter))) {
3658 if ((!strcmp (m->name, "CompareExchange") || !strcmp (m->name, "Exchange")) && m->is_generic) {
3659 memset (&ctx, 0, sizeof (ctx));
3660 args [0] = &mono_defaults.object_class->byval_arg;
3661 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
3662 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (m, &ctx), TRUE, TRUE));
3670 * is_direct_callable:
3672 * Return whenever the method identified by JI is directly callable without
3673 * going through the PLT.
3676 is_direct_callable (MonoAotCompile *acfg, MonoMethod *method, MonoJumpInfo *patch_info)
3678 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
3679 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
3681 gboolean direct_callable = TRUE;
3683 if (direct_callable && !(!callee_cfg->has_got_slots && (callee_cfg->method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)))
3684 direct_callable = FALSE;
3685 if ((callee_cfg->method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) && (!method || method->wrapper_type != MONO_WRAPPER_SYNCHRONIZED))
3686 // FIXME: Maybe call the wrapper directly ?
3687 direct_callable = FALSE;
3689 if (acfg->aot_opts.soft_debug) {
3690 /* Disable this so all calls go through load_method (), see the
3691 * mini_get_debug_options ()->load_aot_jit_info_eagerly = TRUE; line in
3692 * mono_debugger_agent_init ().
3694 direct_callable = FALSE;
3697 if (direct_callable)
3700 } else if ((patch_info->type == MONO_PATCH_INFO_ICALL_ADDR && patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
3701 if (acfg->aot_opts.direct_pinvoke)
3703 } else if (patch_info->type == MONO_PATCH_INFO_ICALL_ADDR) {
3704 if (acfg->aot_opts.direct_icalls)
3713 get_pinvoke_import (MonoAotCompile *acfg, MonoMethod *method)
3715 MonoImage *image = method->klass->image;
3716 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
3717 MonoTableInfo *tables = image->tables;
3718 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
3719 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
3720 guint32 im_cols [MONO_IMPLMAP_SIZE];
3723 import = g_hash_table_lookup (acfg->method_to_pinvoke_import, method);
3727 if (!piinfo->implmap_idx || piinfo->implmap_idx > im->rows)
3730 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
3732 if (!im_cols [MONO_IMPLMAP_SCOPE] || im_cols [MONO_IMPLMAP_SCOPE] > mr->rows)
3735 import = g_strdup_printf ("%s", mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]));
3737 g_hash_table_insert (acfg->method_to_pinvoke_import, method, import);
3743 * emit_and_reloc_code:
3745 * Emit the native code in CODE, handling relocations along the way. If GOT_ONLY
3746 * is true, calls are made through the GOT too. This is used for emitting trampolines
3747 * in full-aot mode, since calls made from trampolines couldn't go through the PLT,
3748 * since trampolines are needed to make PTL work.
3751 emit_and_reloc_code (MonoAotCompile *acfg, MonoMethod *method, guint8 *code, guint32 code_len, MonoJumpInfo *relocs, gboolean got_only)
3753 int i, pindex, start_index, method_index;
3755 MonoJumpInfo *patch_info;
3756 MonoMethodHeader *header;
3757 gboolean skip, direct_call;
3759 char direct_call_target [1024];
3760 const char *direct_pinvoke;
3763 header = mono_method_get_header (method);
3765 method_index = get_method_index (acfg, method);
3768 /* Collect and sort relocations */
3769 patches = g_ptr_array_new ();
3770 for (patch_info = relocs; patch_info; patch_info = patch_info->next)
3771 g_ptr_array_add (patches, patch_info);
3772 g_ptr_array_sort (patches, compare_patches);
3775 for (i = 0; i < code_len; i++) {
3777 for (pindex = start_index; pindex < patches->len; ++pindex) {
3778 patch_info = g_ptr_array_index (patches, pindex);
3779 if (patch_info->ip.i >= i)
3783 #ifdef MONO_ARCH_AOT_SUPPORTED
3785 if (patch_info && (patch_info->ip.i == i) && (pindex < patches->len)) {
3786 start_index = pindex;
3788 switch (patch_info->type) {
3789 case MONO_PATCH_INFO_NONE:
3791 case MONO_PATCH_INFO_GOT_OFFSET: {
3794 arch_emit_got_offset (acfg, code + i, &code_size);
3797 patch_info->type = MONO_PATCH_INFO_NONE;
3802 * If this patch is a call, try emitting a direct call instead of
3803 * through a PLT entry. This is possible if the called method is in
3804 * the same assembly and requires no initialization.
3806 direct_call = FALSE;
3807 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
3808 if (!got_only && is_direct_callable (acfg, method, patch_info)) {
3809 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
3810 //printf ("DIRECT: %s %s\n", method ? mono_method_full_name (method, TRUE) : "", mono_method_full_name (callee_cfg->method, TRUE));
3812 g_assert (strlen (callee_cfg->asm_symbol) < 1000);
3813 sprintf (direct_call_target, "%s", callee_cfg->asm_symbol);
3816 acfg->stats.all_calls ++;
3817 } else if (patch_info->type == MONO_PATCH_INFO_ICALL_ADDR) {
3818 if (!got_only && is_direct_callable (acfg, method, patch_info)) {
3819 if (!(patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
3820 direct_pinvoke = mono_lookup_icall_symbol (patch_info->data.method);
3822 direct_pinvoke = get_pinvoke_import (acfg, patch_info->data.method);
3823 if (direct_pinvoke) {
3825 #if defined(__APPLE__)
3831 g_assert (strlen (direct_pinvoke) < 1000);
3832 sprintf (direct_call_target, "%s%s", prefix, direct_pinvoke);
3838 patch_info->type = MONO_PATCH_INFO_NONE;
3839 acfg->stats.direct_calls ++;
3842 if (!got_only && !direct_call) {
3843 MonoPltEntry *plt_entry = get_plt_entry (acfg, patch_info);
3845 /* This patch has a PLT entry, so we must emit a call to the PLT entry */
3847 sprintf (direct_call_target, "%s", plt_entry->symbol);
3849 /* Nullify the patch */
3850 patch_info->type = MONO_PATCH_INFO_NONE;
3851 plt_entry->jit_used = TRUE;
3858 arch_emit_direct_call (acfg, direct_call_target, &call_size);
3863 got_slot = get_got_offset (acfg, patch_info);
3865 arch_emit_got_access (acfg, code + i, got_slot, &code_size);
3872 #endif /* MONO_ARCH_AOT_SUPPORTED */
3875 /* Find next patch */
3877 for (pindex = start_index; pindex < patches->len; ++pindex) {
3878 patch_info = g_ptr_array_index (patches, pindex);
3879 if (patch_info->ip.i >= i)
3883 /* Try to emit multiple bytes at once */
3884 if (pindex < patches->len && patch_info->ip.i > i) {
3885 emit_bytes (acfg, code + i, patch_info->ip.i - i);
3886 i = patch_info->ip.i - 1;
3888 emit_bytes (acfg, code + i, 1);
3897 * Modify SYMBOL so it only includes characters permissible in symbols.
3900 sanitize_symbol (char *symbol)
3902 int i, len = strlen (symbol);
3904 for (i = 0; i < len; ++i)
3905 if (!isalnum (symbol [i]) && (symbol [i] != '_'))
3910 get_debug_sym (MonoMethod *method, const char *prefix, GHashTable *cache)
3912 char *name1, *name2, *cached;
3913 int i, j, len, count;
3915 name1 = mono_method_full_name (method, TRUE);
3916 len = strlen (name1);
3917 name2 = malloc (strlen (prefix) + len + 16);
3918 memcpy (name2, prefix, strlen (prefix));
3919 j = strlen (prefix);
3920 for (i = 0; i < len; ++i) {
3921 if (isalnum (name1 [i])) {
3922 name2 [j ++] = name1 [i];
3923 } else if (name1 [i] == ' ' && name1 [i + 1] == '(' && name1 [i + 2] == ')') {
3925 } else if (name1 [i] == ',' && name1 [i + 1] == ' ') {
3928 } else if (name1 [i] == '(' || name1 [i] == ')' || name1 [i] == '>') {
3937 while (g_hash_table_lookup (cache, name2)) {
3938 sprintf (name2 + j, "_%d", count);
3942 cached = g_strdup (name2);
3943 g_hash_table_insert (cache, cached, cached);
3949 emit_method_code (MonoAotCompile *acfg, MonoCompile *cfg)
3954 char *debug_sym = NULL;
3956 int func_alignment = AOT_FUNC_ALIGNMENT;
3957 MonoMethodHeader *header;
3960 method = cfg->orig_method;
3961 code = cfg->native_code;
3962 header = cfg->header;
3964 method_index = get_method_index (acfg, method);
3966 /* Make the labels local */
3967 sprintf (symbol, "%s", cfg->asm_symbol);
3969 emit_section_change (acfg, ".text", 0);
3970 emit_alignment (acfg, func_alignment);
3971 emit_label (acfg, symbol);
3973 if (acfg->aot_opts.write_symbols) {
3975 * Write a C style symbol for every method, this has two uses:
3976 * - it works on platforms where the dwarf debugging info is not
3978 * - it allows the setting of breakpoints of aot-ed methods.
3980 debug_sym = get_debug_sym (method, "", acfg->method_label_hash);
3982 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
3983 if (acfg->need_no_dead_strip)
3984 fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym);
3985 emit_local_symbol (acfg, debug_sym, symbol, TRUE);
3986 emit_label (acfg, debug_sym);
3989 export_name = g_hash_table_lookup (acfg->export_names, method);
3991 /* Emit a global symbol for the method */
3992 emit_global_inner (acfg, export_name, TRUE);
3993 emit_label (acfg, export_name);
3996 if (cfg->verbose_level > 0)
3997 g_print ("Method %s emitted as %s\n", mono_method_full_name (method, TRUE), symbol);
3999 acfg->stats.code_size += cfg->code_len;
4001 acfg->cfgs [method_index]->got_offset = acfg->got_offset;
4003 emit_and_reloc_code (acfg, method, code, cfg->code_len, cfg->patch_info, FALSE);
4007 if (acfg->aot_opts.write_symbols) {
4008 emit_symbol_size (acfg, debug_sym, ".");
4012 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
4013 emit_label (acfg, symbol);
4019 * Encode PATCH_INFO into its disk representation.
4022 encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info, guint8 *buf, guint8 **endbuf)
4026 switch (patch_info->type) {
4027 case MONO_PATCH_INFO_NONE:
4029 case MONO_PATCH_INFO_IMAGE:
4030 encode_value (get_image_index (acfg, patch_info->data.image), p, &p);
4032 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
4033 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
4034 case MONO_PATCH_INFO_CASTCLASS_CACHE:
4036 case MONO_PATCH_INFO_METHOD_REL:
4037 encode_value ((gint)patch_info->data.offset, p, &p);
4039 case MONO_PATCH_INFO_SWITCH: {
4040 gpointer *table = (gpointer *)patch_info->data.table->table;
4043 encode_value (patch_info->data.table->table_size, p, &p);
4044 for (k = 0; k < patch_info->data.table->table_size; k++)
4045 encode_value ((int)(gssize)table [k], p, &p);
4048 case MONO_PATCH_INFO_METHODCONST:
4049 case MONO_PATCH_INFO_METHOD:
4050 case MONO_PATCH_INFO_METHOD_JUMP:
4051 case MONO_PATCH_INFO_ICALL_ADDR:
4052 case MONO_PATCH_INFO_METHOD_RGCTX:
4053 encode_method_ref (acfg, patch_info->data.method, p, &p);
4055 case MONO_PATCH_INFO_INTERNAL_METHOD:
4056 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
4057 guint32 len = strlen (patch_info->data.name);
4059 encode_value (len, p, &p);
4061 memcpy (p, patch_info->data.name, len);
4066 case MONO_PATCH_INFO_LDSTR: {
4067 guint32 image_index = get_image_index (acfg, patch_info->data.token->image);
4068 guint32 token = patch_info->data.token->token;
4069 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_STRING);
4070 encode_value (image_index, p, &p);
4071 encode_value (patch_info->data.token->token - MONO_TOKEN_STRING, p, &p);
4074 case MONO_PATCH_INFO_RVA:
4075 case MONO_PATCH_INFO_DECLSEC:
4076 case MONO_PATCH_INFO_LDTOKEN:
4077 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4078 encode_value (get_image_index (acfg, patch_info->data.token->image), p, &p);
4079 encode_value (patch_info->data.token->token, p, &p);
4080 encode_value (patch_info->data.token->has_context, p, &p);
4081 if (patch_info->data.token->has_context)
4082 encode_generic_context (acfg, &patch_info->data.token->context, p, &p);
4084 case MONO_PATCH_INFO_EXC_NAME: {
4085 MonoClass *ex_class;
4088 mono_class_from_name (mono_defaults.exception_class->image,
4089 "System", patch_info->data.target);
4090 g_assert (ex_class);
4091 encode_klass_ref (acfg, ex_class, p, &p);
4094 case MONO_PATCH_INFO_R4:
4095 encode_value (*((guint32 *)patch_info->data.target), p, &p);
4097 case MONO_PATCH_INFO_R8:
4098 encode_value (((guint32 *)patch_info->data.target) [MINI_LS_WORD_IDX], p, &p);
4099 encode_value (((guint32 *)patch_info->data.target) [MINI_MS_WORD_IDX], p, &p);
4101 case MONO_PATCH_INFO_VTABLE:
4102 case MONO_PATCH_INFO_CLASS:
4103 case MONO_PATCH_INFO_IID:
4104 case MONO_PATCH_INFO_ADJUSTED_IID:
4105 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
4107 case MONO_PATCH_INFO_CLASS_INIT:
4108 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
4109 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
4111 case MONO_PATCH_INFO_FIELD:
4112 case MONO_PATCH_INFO_SFLDA:
4113 encode_field_info (acfg, patch_info->data.field, p, &p);
4115 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
4117 case MONO_PATCH_INFO_RGCTX_FETCH: {
4118 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
4123 * entry->method has a lenghtly encoding and multiple rgctx_fetch entries
4124 * reference the same method, so encode the method only once.
4126 offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_blob_hash, entry->method));
4128 buf2 = g_malloc (1024);
4131 encode_method_ref (acfg, entry->method, p2, &p2);
4132 g_assert (p2 - buf2 < 1024);
4134 offset = add_to_blob (acfg, buf2, p2 - buf2);
4137 g_hash_table_insert (acfg->method_blob_hash, entry->method, GUINT_TO_POINTER (offset + 1));
4142 encode_value (offset, p, &p);
4143 g_assert (entry->info_type < 256);
4144 g_assert (entry->data->type < 256);
4145 encode_value ((entry->in_mrgctx ? 1 : 0) | (entry->info_type << 1) | (entry->data->type << 9), p, &p);
4146 encode_patch (acfg, entry->data, p, &p);
4149 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
4150 case MONO_PATCH_INFO_MONITOR_ENTER:
4151 case MONO_PATCH_INFO_MONITOR_EXIT:
4152 case MONO_PATCH_INFO_SEQ_POINT_INFO:
4154 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
4155 encode_method_ref (acfg, patch_info->data.imt_tramp->method, p, &p);
4156 encode_value (patch_info->data.imt_tramp->vt_offset, p, &p);
4158 case MONO_PATCH_INFO_SIGNATURE:
4159 encode_signature (acfg, (MonoMethodSignature*)patch_info->data.target, p, &p);
4162 g_warning ("unable to handle jump info %d", patch_info->type);
4163 g_assert_not_reached ();
4170 encode_patch_list (MonoAotCompile *acfg, GPtrArray *patches, int n_patches, int first_got_offset, guint8 *buf, guint8 **endbuf)
4173 guint32 pindex, offset;
4174 MonoJumpInfo *patch_info;
4176 encode_value (n_patches, p, &p);
4178 for (pindex = 0; pindex < patches->len; ++pindex) {
4179 patch_info = g_ptr_array_index (patches, pindex);
4181 if (patch_info->type == MONO_PATCH_INFO_NONE || patch_info->type == MONO_PATCH_INFO_BB)
4185 offset = get_got_offset (acfg, patch_info);
4186 encode_value (offset, p, &p);
4193 emit_method_info (MonoAotCompile *acfg, MonoCompile *cfg)
4197 int pindex, buf_size, n_patches;
4199 MonoJumpInfo *patch_info;
4200 MonoMethodHeader *header;
4201 guint32 method_index;
4203 guint32 first_got_offset;
4205 method = cfg->orig_method;
4206 header = mono_method_get_header (method);
4208 method_index = get_method_index (acfg, method);
4210 /* Sort relocations */
4211 patches = g_ptr_array_new ();
4212 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next)
4213 g_ptr_array_add (patches, patch_info);
4214 g_ptr_array_sort (patches, compare_patches);
4216 first_got_offset = acfg->cfgs [method_index]->got_offset;
4218 /**********************/
4219 /* Encode method info */
4220 /**********************/
4222 buf_size = (patches->len < 1000) ? 40960 : 40960 + (patches->len * 64);
4223 p = buf = g_malloc (buf_size);
4225 if (mono_class_get_cctor (method->klass))
4226 encode_klass_ref (acfg, method->klass, p, &p);
4228 /* Not needed when loading the method */
4229 encode_value (0, p, &p);
4232 if (cfg->opt & MONO_OPT_SHARED) {
4233 encode_value (g_list_length (cfg->ldstr_list), p, &p);
4234 for (l = cfg->ldstr_list; l; l = l->next) {
4235 encode_value ((long)l->data, p, &p);
4239 /* Used only in shared mode */
4240 g_assert (!cfg->ldstr_list);
4243 for (pindex = 0; pindex < patches->len; ++pindex) {
4244 patch_info = g_ptr_array_index (patches, pindex);
4246 if ((patch_info->type == MONO_PATCH_INFO_GOT_OFFSET) ||
4247 (patch_info->type == MONO_PATCH_INFO_NONE)) {
4248 patch_info->type = MONO_PATCH_INFO_NONE;
4253 if ((patch_info->type == MONO_PATCH_INFO_IMAGE) && (patch_info->data.image == acfg->image)) {
4254 /* Stored in a GOT slot initialized at module load time */
4255 patch_info->type = MONO_PATCH_INFO_NONE;
4259 if (patch_info->type == MONO_PATCH_INFO_GC_CARD_TABLE_ADDR) {
4260 /* Stored in a GOT slot initialized at module load time */
4261 patch_info->type = MONO_PATCH_INFO_NONE;
4265 if (is_plt_patch (patch_info)) {
4266 /* Calls are made through the PLT */
4267 patch_info->type = MONO_PATCH_INFO_NONE;
4275 g_assert (cfg->has_got_slots);
4277 encode_patch_list (acfg, patches, n_patches, first_got_offset, p, &p);
4279 acfg->stats.info_size += p - buf;
4281 g_assert (p - buf < buf_size);
4283 cfg->method_info_offset = add_to_blob (acfg, buf, p - buf);
4288 get_unwind_info_offset (MonoAotCompile *acfg, guint8 *encoded, guint32 encoded_len)
4290 guint32 cache_index;
4293 /* Reuse the unwind module to canonize and store unwind info entries */
4294 cache_index = mono_cache_unwind_info (encoded, encoded_len);
4296 /* Use +/- 1 to distinguish 0s from missing entries */
4297 offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1)));
4305 * It would be easier to use assembler symbols, but the caller needs an
4308 offset = acfg->unwind_info_offset;
4309 g_hash_table_insert (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1), GUINT_TO_POINTER (offset + 1));
4310 g_ptr_array_add (acfg->unwind_ops, GUINT_TO_POINTER (cache_index));
4313 encode_value (encoded_len, p, &p);
4315 acfg->unwind_info_offset += encoded_len + (p - buf);
4321 emit_exception_debug_info (MonoAotCompile *acfg, MonoCompile *cfg)
4324 int i, k, buf_size, method_index;
4325 guint32 debug_info_size;
4327 MonoMethodHeader *header;
4328 guint8 *p, *buf, *debug_info;
4329 MonoJitInfo *jinfo = cfg->jit_info;
4331 gboolean use_unwind_ops = FALSE;
4332 MonoSeqPointInfo *seq_points;
4334 method = cfg->orig_method;
4335 code = cfg->native_code;
4336 header = cfg->header;
4338 method_index = get_method_index (acfg, method);
4340 if (!acfg->aot_opts.nodebug) {
4341 mono_debug_serialize_debug_info (cfg, &debug_info, &debug_info_size);
4344 debug_info_size = 0;
4347 seq_points = cfg->seq_point_info;
4349 buf_size = header->num_clauses * 256 + debug_info_size + 2048 + (seq_points ? (seq_points->len * 64) : 0) + cfg->gc_map_size;
4350 p = buf = g_malloc (buf_size);
4352 #ifdef MONO_ARCH_HAVE_XP_UNWIND
4353 use_unwind_ops = cfg->unwind_ops != NULL;
4356 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);
4358 encode_value (flags, p, &p);
4360 if (use_unwind_ops) {
4361 guint32 encoded_len;
4365 * This is a duplicate of the data in the .debug_frame section, but that
4366 * section cannot be accessed using the dl interface.
4368 encoded = mono_unwind_ops_encode (cfg->unwind_ops, &encoded_len);
4369 encode_value (get_unwind_info_offset (acfg, encoded, encoded_len), p, &p);
4372 encode_value (jinfo->used_regs, p, &p);
4375 /*Encode the number of holes before the number of clauses to make decoding easier*/
4376 if (jinfo->has_try_block_holes) {
4377 MonoTryBlockHoleTableJitInfo *table = mono_jit_info_get_try_block_hole_table_info (jinfo);
4378 encode_value (table->num_holes, p, &p);
4381 /* Exception table */
4382 if (cfg->compile_llvm) {
4384 * When using LLVM, we can't emit some data, like pc offsets, this reg/offset etc.,
4385 * since the information is only available to llc. Instead, we let llc save the data
4386 * into the LSDA, and read it from there at runtime.
4388 /* The assembly might be CIL stripped so emit the data ourselves */
4389 if (header->num_clauses)
4390 encode_value (header->num_clauses, p, &p);
4392 for (k = 0; k < header->num_clauses; ++k) {
4393 MonoExceptionClause *clause;
4395 clause = &header->clauses [k];
4397 encode_value (clause->flags, p, &p);
4398 if (clause->data.catch_class) {
4399 encode_value (1, p, &p);
4400 encode_klass_ref (acfg, clause->data.catch_class, p, &p);
4402 encode_value (0, p, &p);
4405 /* Emit a list of nesting clauses */
4406 for (i = 0; i < header->num_clauses; ++i) {
4408 MonoExceptionClause *clause1 = &header->clauses [cindex1];
4410 MonoExceptionClause *clause2 = &header->clauses [cindex2];
4412 if (cindex1 != cindex2 && clause1->try_offset >= clause2->try_offset && clause1->handler_offset <= clause2->handler_offset)
4413 encode_value (i, p, &p);
4415 encode_value (-1, p, &p);
4418 if (jinfo->num_clauses)
4419 encode_value (jinfo->num_clauses, p, &p);
4421 for (k = 0; k < jinfo->num_clauses; ++k) {
4422 MonoJitExceptionInfo *ei = &jinfo->clauses [k];
4424 encode_value (ei->flags, p, &p);
4425 encode_value (ei->exvar_offset, p, &p);
4427 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
4428 encode_value ((gint)((guint8*)ei->data.filter - code), p, &p);
4430 if (ei->data.catch_class) {
4431 encode_value (1, p, &p);
4432 encode_klass_ref (acfg, ei->data.catch_class, p, &p);
4434 encode_value (0, p, &p);
4438 encode_value ((gint)((guint8*)ei->try_start - code), p, &p);
4439 encode_value ((gint)((guint8*)ei->try_end - code), p, &p);
4440 encode_value ((gint)((guint8*)ei->handler_start - code), p, &p);
4444 if (jinfo->has_generic_jit_info) {
4445 MonoGenericJitInfo *gi = mono_jit_info_get_generic_jit_info (jinfo);
4449 encode_value (gi->nlocs, p, &p);
4451 for (i = 0; i < gi->nlocs; ++i) {
4452 MonoDwarfLocListEntry *entry = &gi->locations [i];
4454 encode_value (entry->is_reg ? 1 : 0, p, &p);
4455 encode_value (entry->reg, p, &p);
4457 encode_value (entry->offset, p, &p);
4459 g_assert (entry->from == 0);
4461 encode_value (entry->from, p, &p);
4462 encode_value (entry->to, p, &p);
4465 if (!cfg->compile_llvm) {
4466 encode_value (gi->has_this ? 1 : 0, p, &p);
4467 encode_value (gi->this_reg, p, &p);
4468 encode_value (gi->this_offset, p, &p);
4473 * Need to encode jinfo->method too, since it is not equal to 'method'
4474 * when using generic sharing.
4476 encode_method_ref (acfg, jinfo->method, p, &p);
4479 if (jinfo->has_try_block_holes) {
4480 MonoTryBlockHoleTableJitInfo *table = mono_jit_info_get_try_block_hole_table_info (jinfo);
4481 for (i = 0; i < table->num_holes; ++i) {
4482 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
4483 encode_value (hole->clause, p, &p);
4484 encode_value (hole->length, p, &p);
4485 encode_value (hole->offset, p, &p);
4489 if (jinfo->has_arch_eh_info) {
4490 MonoArchEHJitInfo *eh_info;
4492 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
4493 encode_value (eh_info->stack_size, p, &p);
4497 int il_offset, native_offset, last_il_offset, last_native_offset, j;
4499 encode_value (seq_points->len, p, &p);
4500 last_il_offset = last_native_offset = 0;
4501 for (i = 0; i < seq_points->len; ++i) {
4502 SeqPoint *sp = &seq_points->seq_points [i];
4503 il_offset = sp->il_offset;
4504 native_offset = sp->native_offset;
4505 encode_value (il_offset - last_il_offset, p, &p);
4506 encode_value (native_offset - last_native_offset, p, &p);
4507 last_il_offset = il_offset;
4508 last_native_offset = native_offset;
4510 encode_value (sp->next_len, p, &p);
4511 for (j = 0; j < sp->next_len; ++j)
4512 encode_value (sp->next [j], p, &p);
4516 g_assert (debug_info_size < buf_size);
4518 encode_value (debug_info_size, p, &p);
4519 if (debug_info_size) {
4520 memcpy (p, debug_info, debug_info_size);
4521 p += debug_info_size;
4522 g_free (debug_info);
4527 encode_value (cfg->gc_map_size, p, &p);
4528 /* The GC map requires 4 bytes of alignment */
4529 while ((gsize)p % 4)
4531 memcpy (p, cfg->gc_map, cfg->gc_map_size);
4532 p += cfg->gc_map_size;
4535 acfg->stats.ex_info_size += p - buf;
4537 g_assert (p - buf < buf_size);
4540 /* The GC Map requires 4 byte alignment */
4541 cfg->ex_info_offset = add_to_blob_aligned (acfg, buf, p - buf, cfg->gc_map ? 4 : 1);
4546 emit_klass_info (MonoAotCompile *acfg, guint32 token)
4548 MonoClass *klass = mono_class_get (acfg->image, token);
4550 int i, buf_size, res;
4551 gboolean no_special_static, cant_encode;
4552 gpointer iter = NULL;
4555 mono_loader_clear_error ();
4559 p = buf = g_malloc (buf_size);
4561 /* Mark as unusable */
4562 encode_value (-1, p, &p);
4564 res = add_to_blob (acfg, buf, p - buf);
4570 buf_size = 10240 + (klass->vtable_size * 16);
4571 p = buf = g_malloc (buf_size);
4575 mono_class_init (klass);
4577 mono_class_get_nested_types (klass, &iter);
4578 g_assert (klass->nested_classes_inited);
4580 mono_class_setup_vtable (klass);
4583 * Emit all the information which is required for creating vtables so
4584 * the runtime does not need to create the MonoMethod structures which
4585 * take up a lot of space.
4588 no_special_static = !mono_class_has_special_static_fields (klass);
4590 /* Check whenever we have enough info to encode the vtable */
4591 cant_encode = FALSE;
4592 for (i = 0; i < klass->vtable_size; ++i) {
4593 MonoMethod *cm = klass->vtable [i];
4595 if (cm && mono_method_signature (cm)->is_inflated && !g_hash_table_lookup (acfg->token_info_hash, cm))
4599 mono_class_has_finalizer (klass);
4601 if (klass->generic_container || cant_encode) {
4602 encode_value (-1, p, &p);
4604 encode_value (klass->vtable_size, p, &p);
4605 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);
4606 if (klass->has_cctor)
4607 encode_method_ref (acfg, mono_class_get_cctor (klass), p, &p);
4608 if (klass->has_finalize)
4609 encode_method_ref (acfg, mono_class_get_finalizer (klass), p, &p);
4611 encode_value (klass->instance_size, p, &p);
4612 encode_value (mono_class_data_size (klass), p, &p);
4613 encode_value (klass->packing_size, p, &p);
4614 encode_value (klass->min_align, p, &p);
4616 for (i = 0; i < klass->vtable_size; ++i) {
4617 MonoMethod *cm = klass->vtable [i];
4620 encode_method_ref (acfg, cm, p, &p);
4622 encode_value (0, p, &p);
4626 acfg->stats.class_info_size += p - buf;
4628 g_assert (p - buf < buf_size);
4629 res = add_to_blob (acfg, buf, p - buf);
4636 get_plt_entry_debug_sym (MonoAotCompile *acfg, MonoJumpInfo *ji, GHashTable *cache)
4638 char *debug_sym = NULL;
4641 case MONO_PATCH_INFO_METHOD:
4642 debug_sym = get_debug_sym (ji->data.method, "plt_", cache);
4644 case MONO_PATCH_INFO_INTERNAL_METHOD:
4645 debug_sym = g_strdup_printf ("plt__jit_icall_%s", ji->data.name);
4647 case MONO_PATCH_INFO_CLASS_INIT:
4648 debug_sym = g_strdup_printf ("plt__class_init_%s", mono_type_get_name (&ji->data.klass->byval_arg));
4649 sanitize_symbol (debug_sym);
4651 case MONO_PATCH_INFO_RGCTX_FETCH:
4652 debug_sym = g_strdup_printf ("plt__rgctx_fetch_%d", acfg->label_generator ++);
4654 case MONO_PATCH_INFO_ICALL_ADDR: {
4655 char *s = get_debug_sym (ji->data.method, "", cache);
4657 debug_sym = g_strdup_printf ("plt__icall_native_%s", s);
4661 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
4662 debug_sym = g_strdup_printf ("plt__jit_icall_native_%s", ji->data.name);
4664 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
4665 debug_sym = g_strdup_printf ("plt__generic_class_init");
4675 * Calls made from AOTed code are routed through a table of jumps similar to the
4676 * ELF PLT (Program Linkage Table). Initially the PLT entries jump to code which transfers
4677 * control to the AOT runtime through a trampoline.
4680 emit_plt (MonoAotCompile *acfg)
4686 sprintf (symbol, "plt");
4688 emit_section_change (acfg, ".text", 0);
4689 emit_alignment (acfg, NACL_SIZE(16, kNaClAlignment));
4690 emit_label (acfg, symbol);
4691 emit_label (acfg, acfg->plt_symbol);
4693 for (i = 0; i < acfg->plt_offset; ++i) {
4694 char *debug_sym = NULL;
4695 MonoPltEntry *plt_entry = NULL;
4700 * The first plt entry is unused.
4704 plt_entry = g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
4709 * If the target is directly callable, alias the plt symbol to point to
4711 * FIXME: Use this to simplify emit_and_reloc_code ().
4712 * FIXME: Avoid the got slot.
4713 * FIXME: Add support to the binary writer.
4715 if (ji && is_direct_callable (acfg, NULL, ji) && !acfg->use_bin_writer) {
4716 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, ji->data.method);
4719 if (acfg->thumb_mixed && !callee_cfg->compile_llvm) {
4720 /* LLVM calls the PLT entries using bl, so emit a stub */
4721 fprintf (acfg->fp, "\n.thumb_func\n");
4722 emit_label (acfg, plt_entry->llvm_symbol);
4723 fprintf (acfg->fp, "bx pc\n");
4724 fprintf (acfg->fp, "nop\n");
4725 fprintf (acfg->fp, ".arm\n");
4726 fprintf (acfg->fp, "b %s\n", callee_cfg->asm_symbol);
4728 fprintf (acfg->fp, "\n.set %s, %s\n", plt_entry->llvm_symbol, callee_cfg->asm_symbol);
4735 debug_sym = plt_entry->debug_sym;
4737 if (acfg->thumb_mixed && !plt_entry->jit_used)
4738 /* Emit only a thumb version */
4741 if (!acfg->thumb_mixed)
4742 emit_label (acfg, plt_entry->llvm_symbol);
4745 if (acfg->need_no_dead_strip)
4746 fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym);
4747 emit_local_symbol (acfg, debug_sym, NULL, TRUE);
4748 emit_label (acfg, debug_sym);
4751 emit_label (acfg, plt_entry->symbol);
4753 arch_emit_plt_entry (acfg, i);
4756 emit_symbol_size (acfg, debug_sym, ".");
4759 if (acfg->thumb_mixed) {
4760 /* Make sure the ARM symbols don't alias the thumb ones */
4761 emit_zero_bytes (acfg, 16);
4764 * Emit a separate set of PLT entries using thumb2 which is called by LLVM generated
4767 for (i = 0; i < acfg->plt_offset; ++i) {
4768 char *debug_sym = NULL;
4769 MonoPltEntry *plt_entry = NULL;
4775 plt_entry = g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
4778 if (ji && is_direct_callable (acfg, NULL, ji) && !acfg->use_bin_writer)
4781 /* Skip plt entries not actually called by LLVM code */
4782 if (!plt_entry->llvm_used)
4785 if (acfg->aot_opts.write_symbols) {
4786 if (plt_entry->debug_sym)
4787 debug_sym = g_strdup_printf ("%s_thumb", plt_entry->debug_sym);
4791 #if defined(__APPLE__)
4792 fprintf (acfg->fp, " .thumb_func %s\n", debug_sym);
4793 fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym);
4795 emit_local_symbol (acfg, debug_sym, NULL, TRUE);
4796 emit_label (acfg, debug_sym);
4798 fprintf (acfg->fp, "\n.thumb_func\n");
4800 emit_label (acfg, plt_entry->llvm_symbol);
4802 arch_emit_llvm_plt_entry (acfg, i);
4805 emit_symbol_size (acfg, debug_sym, ".");
4811 emit_symbol_size (acfg, acfg->plt_symbol, ".");
4813 sprintf (symbol, "plt_end");
4814 emit_label (acfg, symbol);
4817 static G_GNUC_UNUSED void
4818 emit_trampoline (MonoAotCompile *acfg, int got_offset, MonoTrampInfo *info)
4820 char start_symbol [256];
4822 guint32 buf_size, info_offset;
4823 MonoJumpInfo *patch_info;
4834 code_size = info->code_size;
4836 unwind_ops = info->unwind_ops;
4838 #ifdef __native_client_codegen__
4839 mono_nacl_fix_patches (code, ji);
4844 sprintf (start_symbol, "%s", name);
4846 emit_section_change (acfg, ".text", 0);
4847 emit_global (acfg, start_symbol, TRUE);
4848 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
4849 emit_label (acfg, start_symbol);
4851 sprintf (symbol, "%snamed_%s", acfg->temp_prefix, name);
4852 emit_label (acfg, symbol);
4855 * The code should access everything through the GOT, so we pass
4858 emit_and_reloc_code (acfg, NULL, code, code_size, ji, TRUE);
4860 emit_symbol_size (acfg, start_symbol, ".");
4864 /* Sort relocations */
4865 patches = g_ptr_array_new ();
4866 for (patch_info = ji; patch_info; patch_info = patch_info->next)
4867 if (patch_info->type != MONO_PATCH_INFO_NONE)
4868 g_ptr_array_add (patches, patch_info);
4869 g_ptr_array_sort (patches, compare_patches);
4871 buf_size = patches->len * 128 + 128;
4872 buf = g_malloc (buf_size);
4875 encode_patch_list (acfg, patches, patches->len, got_offset, p, &p);
4876 g_assert (p - buf < buf_size);
4878 sprintf (symbol, "%s_p", name);
4880 info_offset = add_to_blob (acfg, buf, p - buf);
4882 emit_section_change (acfg, RODATA_SECT, 0);
4883 emit_global (acfg, symbol, FALSE);
4884 emit_label (acfg, symbol);
4886 emit_int32 (acfg, info_offset);
4888 /* Emit debug info */
4892 sprintf (symbol, "%s", name);
4893 sprintf (symbol2, "%snamed_%s", acfg->temp_prefix, name);
4896 mono_dwarf_writer_emit_trampoline (acfg->dwarf, symbol, symbol2, NULL, NULL, code_size, unwind_ops);
4901 emit_trampolines (MonoAotCompile *acfg)
4904 char end_symbol [256];
4905 int i, tramp_got_offset;
4906 MonoAotTrampoline ntype;
4907 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
4911 if (!acfg->aot_opts.full_aot)
4914 g_assert (acfg->image->assembly);
4916 /* Currently, we emit most trampolines into the mscorlib AOT image. */
4917 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
4918 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
4919 MonoTrampInfo *info;
4922 * Emit the generic trampolines.
4924 * We could save some code by treating the generic trampolines as a wrapper
4925 * method, but that approach has its own complexities, so we choose the simpler
4928 for (tramp_type = 0; tramp_type < MONO_TRAMPOLINE_NUM; ++tramp_type) {
4929 mono_arch_create_generic_trampoline (tramp_type, &info, TRUE);
4930 emit_trampoline (acfg, acfg->got_offset, info);
4933 mono_arch_get_nullified_class_init_trampoline (&info);
4934 emit_trampoline (acfg, acfg->got_offset, info);
4935 #if defined(MONO_ARCH_MONITOR_OBJECT_REG)
4936 mono_arch_create_monitor_enter_trampoline (&info, TRUE);
4937 emit_trampoline (acfg, acfg->got_offset, info);
4938 mono_arch_create_monitor_exit_trampoline (&info, TRUE);
4939 emit_trampoline (acfg, acfg->got_offset, info);
4942 mono_arch_create_generic_class_init_trampoline (&info, TRUE);
4943 emit_trampoline (acfg, acfg->got_offset, info);
4945 /* Emit the exception related code pieces */
4946 mono_arch_get_restore_context (&info, TRUE);
4947 emit_trampoline (acfg, acfg->got_offset, info);
4948 mono_arch_get_call_filter (&info, TRUE);
4949 emit_trampoline (acfg, acfg->got_offset, info);
4950 mono_arch_get_throw_exception (&info, TRUE);
4951 emit_trampoline (acfg, acfg->got_offset, info);
4952 mono_arch_get_rethrow_exception (&info, TRUE);
4953 emit_trampoline (acfg, acfg->got_offset, info);
4954 mono_arch_get_throw_corlib_exception (&info, TRUE);
4955 emit_trampoline (acfg, acfg->got_offset, info);
4957 #if defined(MONO_ARCH_HAVE_GET_TRAMPOLINES)
4959 GSList *l = mono_arch_get_trampolines (TRUE);
4962 MonoTrampInfo *info = l->data;
4964 emit_trampoline (acfg, acfg->got_offset, info);
4970 for (i = 0; i < 128; ++i) {
4973 offset = MONO_RGCTX_SLOT_MAKE_RGCTX (i);
4974 mono_arch_create_rgctx_lazy_fetch_trampoline (offset, &info, TRUE);
4975 emit_trampoline (acfg, acfg->got_offset, info);
4977 offset = MONO_RGCTX_SLOT_MAKE_MRGCTX (i);
4978 mono_arch_create_rgctx_lazy_fetch_trampoline (offset, &info, TRUE);
4979 emit_trampoline (acfg, acfg->got_offset, info);
4985 /* delegate_invoke_impl trampolines */
4986 l = mono_arch_get_delegate_invoke_impls ();
4988 MonoTrampInfo *info = l->data;
4990 emit_trampoline (acfg, acfg->got_offset, info);
4995 #endif /* #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES */
4997 /* Emit trampolines which are numerous */
5000 * These include the following:
5001 * - specific trampolines
5002 * - static rgctx invoke trampolines
5004 * These trampolines have the same code, they are parameterized by GOT
5006 * They are defined in this file, in the arch_... routines instead of
5007 * in tramp-<ARCH>.c, since it is easier to do it this way.
5011 * When running in aot-only mode, we can't create specific trampolines at
5012 * runtime, so we create a few, and save them in the AOT file.
5013 * Normal trampolines embed their argument as a literal inside the
5014 * trampoline code, we can't do that here, so instead we embed an offset
5015 * which needs to be added to the trampoline address to get the address of
5016 * the GOT slot which contains the argument value.
5017 * The generated trampolines jump to the generic trampolines using another
5018 * GOT slot, which will be setup by the AOT loader to point to the
5019 * generic trampoline code of the given type.
5023 * FIXME: Maybe we should use more specific trampolines (i.e. one class init for
5027 emit_section_change (acfg, ".text", 0);
5029 tramp_got_offset = acfg->got_offset;
5031 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype) {
5033 case MONO_AOT_TRAMP_SPECIFIC:
5034 sprintf (symbol, "specific_trampolines");
5036 case MONO_AOT_TRAMP_STATIC_RGCTX:
5037 sprintf (symbol, "static_rgctx_trampolines");
5039 case MONO_AOT_TRAMP_IMT_THUNK:
5040 sprintf (symbol, "imt_thunks");
5043 g_assert_not_reached ();
5046 sprintf (end_symbol, "%s_e", symbol);
5048 if (acfg->aot_opts.write_symbols)
5049 emit_local_symbol (acfg, symbol, end_symbol, TRUE);
5051 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
5052 emit_label (acfg, symbol);
5054 acfg->trampoline_got_offset_base [ntype] = tramp_got_offset;
5056 for (i = 0; i < acfg->num_trampolines [ntype]; ++i) {
5060 case MONO_AOT_TRAMP_SPECIFIC:
5061 arch_emit_specific_trampoline (acfg, tramp_got_offset, &tramp_size);
5062 tramp_got_offset += 2;
5064 case MONO_AOT_TRAMP_STATIC_RGCTX:
5065 arch_emit_static_rgctx_trampoline (acfg, tramp_got_offset, &tramp_size);
5066 tramp_got_offset += 2;
5068 case MONO_AOT_TRAMP_IMT_THUNK:
5069 arch_emit_imt_thunk (acfg, tramp_got_offset, &tramp_size);
5070 tramp_got_offset += 1;
5073 g_assert_not_reached ();
5075 #ifdef __native_client_codegen__
5076 /* align to avoid 32-byte boundary crossings */
5077 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
5080 if (!acfg->trampoline_size [ntype]) {
5081 g_assert (tramp_size);
5082 acfg->trampoline_size [ntype] = tramp_size;
5086 emit_label (acfg, end_symbol);
5089 /* Reserve some entries at the end of the GOT for our use */
5090 acfg->num_trampoline_got_entries = tramp_got_offset - acfg->got_offset;
5093 acfg->got_offset += acfg->num_trampoline_got_entries;
5097 str_begins_with (const char *str1, const char *str2)
5099 int len = strlen (str2);
5100 return strncmp (str1, str2, len) == 0;
5104 mono_aot_readonly_field_override (MonoClassField *field)
5107 for (rdv = readonly_values; rdv; rdv = rdv->next) {
5108 char *p = rdv->name;
5110 len = strlen (field->parent->name_space);
5111 if (strncmp (p, field->parent->name_space, len))
5116 len = strlen (field->parent->name);
5117 if (strncmp (p, field->parent->name, len))
5122 if (strcmp (p, field->name))
5124 switch (rdv->type) {
5126 return &rdv->value.i1;
5128 return &rdv->value.i2;
5130 return &rdv->value.i4;
5139 add_readonly_value (MonoAotOptions *opts, const char *val)
5144 /* the format of val is:
5145 * namespace.typename.fieldname=type/value
5146 * type can be i1 for uint8/int8/boolean, i2 for uint16/int16/char, i4 for uint32/int32
5148 fval = strrchr (val, '/');
5150 fprintf (stderr, "AOT : invalid format for readonly field '%s', missing /.\n", val);
5153 tval = strrchr (val, '=');
5155 fprintf (stderr, "AOT : invalid format for readonly field '%s', missing =.\n", val);
5158 rdv = g_new0 (ReadOnlyValue, 1);
5159 rdv->name = g_malloc0 (tval - val + 1);
5160 memcpy (rdv->name, val, tval - val);
5163 if (strncmp (tval, "i1", 2) == 0) {
5164 rdv->value.i1 = atoi (fval);
5165 rdv->type = MONO_TYPE_I1;
5166 } else if (strncmp (tval, "i2", 2) == 0) {
5167 rdv->value.i2 = atoi (fval);
5168 rdv->type = MONO_TYPE_I2;
5169 } else if (strncmp (tval, "i4", 2) == 0) {
5170 rdv->value.i4 = atoi (fval);
5171 rdv->type = MONO_TYPE_I4;
5173 fprintf (stderr, "AOT : unsupported type for readonly field '%s'.\n", tval);
5176 rdv->next = readonly_values;
5177 readonly_values = rdv;
5181 mono_aot_parse_options (const char *aot_options, MonoAotOptions *opts)
5183 gchar **args, **ptr;
5185 args = g_strsplit (aot_options ? aot_options : "", ",", -1);
5186 for (ptr = args; ptr && *ptr; ptr ++) {
5187 const char *arg = *ptr;
5189 if (str_begins_with (arg, "outfile=")) {
5190 opts->outfile = g_strdup (arg + strlen ("outfile="));
5191 } else if (str_begins_with (arg, "save-temps")) {
5192 opts->save_temps = TRUE;
5193 } else if (str_begins_with (arg, "keep-temps")) {
5194 opts->save_temps = TRUE;
5195 } else if (str_begins_with (arg, "write-symbols")) {
5196 opts->write_symbols = TRUE;
5197 } else if (str_begins_with (arg, "no-write-symbols")) {
5198 opts->write_symbols = FALSE;
5199 } else if (str_begins_with (arg, "metadata-only")) {
5200 opts->metadata_only = TRUE;
5201 } else if (str_begins_with (arg, "bind-to-runtime-version")) {
5202 opts->bind_to_runtime_version = TRUE;
5203 } else if (str_begins_with (arg, "full")) {
5204 opts->full_aot = TRUE;
5205 } else if (str_begins_with (arg, "threads=")) {
5206 opts->nthreads = atoi (arg + strlen ("threads="));
5207 } else if (str_begins_with (arg, "static")) {
5208 opts->static_link = TRUE;
5209 opts->no_dlsym = TRUE;
5210 } else if (str_begins_with (arg, "asmonly")) {
5211 opts->asm_only = TRUE;
5212 } else if (str_begins_with (arg, "asmwriter")) {
5213 opts->asm_writer = TRUE;
5214 } else if (str_begins_with (arg, "nodebug")) {
5215 opts->nodebug = TRUE;
5216 } else if (str_begins_with (arg, "ntrampolines=")) {
5217 opts->ntrampolines = atoi (arg + strlen ("ntrampolines="));
5218 } else if (str_begins_with (arg, "nrgctx-trampolines=")) {
5219 opts->nrgctx_trampolines = atoi (arg + strlen ("nrgctx-trampolines="));
5220 } else if (str_begins_with (arg, "nimt-trampolines=")) {
5221 opts->nimt_trampolines = atoi (arg + strlen ("nimt-trampolines="));
5222 } else if (str_begins_with (arg, "autoreg")) {
5223 opts->autoreg = TRUE;
5224 } else if (str_begins_with (arg, "tool-prefix=")) {
5225 opts->tool_prefix = g_strdup (arg + strlen ("tool-prefix="));
5226 } else if (str_begins_with (arg, "soft-debug")) {
5227 opts->soft_debug = TRUE;
5228 } else if (str_begins_with (arg, "direct-pinvoke")) {
5229 opts->direct_pinvoke = TRUE;
5230 } else if (str_begins_with (arg, "direct-icalls")) {
5231 opts->direct_icalls = TRUE;
5232 } else if (str_begins_with (arg, "print-skipped")) {
5233 opts->print_skipped_methods = TRUE;
5234 } else if (str_begins_with (arg, "stats")) {
5236 } else if (str_begins_with (arg, "log-generics")) {
5237 opts->log_generics = TRUE;
5238 } else if (str_begins_with (arg, "mtriple=")) {
5239 opts->mtriple = g_strdup (arg + strlen ("mtriple="));
5240 } else if (str_begins_with (arg, "llvm-path=")) {
5241 opts->llvm_path = g_strdup (arg + strlen ("llvm-path="));
5242 } else if (str_begins_with (arg, "readonly-value=")) {
5243 add_readonly_value (opts, arg + strlen ("readonly-value="));
5244 } else if (str_begins_with (arg, "info")) {
5245 printf ("AOT target setup: %s.\n", AOT_TARGET_STR);
5247 } else if (str_begins_with (arg, "help") || str_begins_with (arg, "?")) {
5248 printf ("Supported options for --aot:\n");
5249 printf (" outfile=\n");
5250 printf (" save-temps\n");
5251 printf (" keep-temps\n");
5252 printf (" write-symbols\n");
5253 printf (" metadata-only\n");
5254 printf (" bind-to-runtime-version\n");
5256 printf (" threads=\n");
5257 printf (" static\n");
5258 printf (" asmonly\n");
5259 printf (" asmwriter\n");
5260 printf (" nodebug\n");
5261 printf (" ntrampolines=\n");
5262 printf (" nrgctx-trampolines=\n");
5263 printf (" nimt-trampolines=\n");
5264 printf (" autoreg\n");
5265 printf (" tool-prefix=\n");
5266 printf (" readonly-value=\n");
5267 printf (" soft-debug\n");
5268 printf (" print-skipped\n");
5269 printf (" stats\n");
5271 printf (" help/?\n");
5274 fprintf (stderr, "AOT : Unknown argument '%s'.\n", arg);
5283 add_token_info_hash (gpointer key, gpointer value, gpointer user_data)
5285 MonoMethod *method = (MonoMethod*)key;
5286 MonoJumpInfoToken *ji = (MonoJumpInfoToken*)value;
5287 MonoJumpInfoToken *new_ji = g_new0 (MonoJumpInfoToken, 1);
5288 MonoAotCompile *acfg = user_data;
5290 new_ji->image = ji->image;
5291 new_ji->token = ji->token;
5292 g_hash_table_insert (acfg->token_info_hash, method, new_ji);
5296 can_encode_class (MonoAotCompile *acfg, MonoClass *klass)
5298 if (klass->type_token)
5300 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR) || (klass->byval_arg.type == MONO_TYPE_PTR))
5303 return can_encode_class (acfg, klass->element_class);
5308 can_encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
5310 switch (patch_info->type) {
5311 case MONO_PATCH_INFO_METHOD:
5312 case MONO_PATCH_INFO_METHODCONST: {
5313 MonoMethod *method = patch_info->data.method;
5315 if (method->wrapper_type) {
5316 switch (method->wrapper_type) {
5317 case MONO_WRAPPER_NONE:
5318 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
5319 case MONO_WRAPPER_XDOMAIN_INVOKE:
5320 case MONO_WRAPPER_STFLD:
5321 case MONO_WRAPPER_LDFLD:
5322 case MONO_WRAPPER_LDFLDA:
5323 case MONO_WRAPPER_LDFLD_REMOTE:
5324 case MONO_WRAPPER_STFLD_REMOTE:
5325 case MONO_WRAPPER_STELEMREF:
5326 case MONO_WRAPPER_ISINST:
5327 case MONO_WRAPPER_PROXY_ISINST:
5328 case MONO_WRAPPER_ALLOC:
5329 case MONO_WRAPPER_REMOTING_INVOKE:
5330 case MONO_WRAPPER_UNKNOWN:
5331 case MONO_WRAPPER_WRITE_BARRIER:
5333 case MONO_WRAPPER_MANAGED_TO_MANAGED:
5334 case MONO_WRAPPER_CASTCLASS: {
5335 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
5344 //printf ("Skip (wrapper call): %d -> %s\n", patch_info->type, mono_method_full_name (patch_info->data.method, TRUE));
5348 if (!method->token) {
5349 /* The method is part of a constructed type like Int[,].Set (). */
5350 if (!g_hash_table_lookup (acfg->token_info_hash, method)) {
5351 if (method->klass->rank)
5359 case MONO_PATCH_INFO_VTABLE:
5360 case MONO_PATCH_INFO_CLASS_INIT:
5361 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
5362 case MONO_PATCH_INFO_CLASS:
5363 case MONO_PATCH_INFO_IID:
5364 case MONO_PATCH_INFO_ADJUSTED_IID:
5365 if (!can_encode_class (acfg, patch_info->data.klass)) {
5366 //printf ("Skip: %s\n", mono_type_full_name (&patch_info->data.klass->byval_arg));
5370 case MONO_PATCH_INFO_RGCTX_FETCH: {
5371 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
5373 if (!can_encode_patch (acfg, entry->data))
5387 * AOT compile a given method.
5388 * This function might be called by multiple threads, so it must be thread-safe.
5391 compile_method (MonoAotCompile *acfg, MonoMethod *method)
5394 MonoJumpInfo *patch_info;
5397 MonoMethod *wrapped;
5399 if (acfg->aot_opts.metadata_only)
5402 mono_acfg_lock (acfg);
5403 index = get_method_index (acfg, method);
5404 mono_acfg_unlock (acfg);
5406 /* fixme: maybe we can also precompile wrapper methods */
5407 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
5408 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
5409 (method->flags & METHOD_ATTRIBUTE_ABSTRACT)) {
5410 //printf ("Skip (impossible): %s\n", mono_method_full_name (method, TRUE));
5414 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
5417 wrapped = mono_marshal_method_from_wrapper (method);
5418 if (wrapped && (wrapped->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && wrapped->is_generic)
5419 // FIXME: The wrapper should be generic too, but it is not
5422 if (method->wrapper_type == MONO_WRAPPER_COMINTEROP)
5425 InterlockedIncrement (&acfg->stats.mcount);
5428 if (method->is_generic || method->klass->generic_container) {
5429 InterlockedIncrement (&acfg->stats.genericcount);
5434 //acfg->aot_opts.print_skipped_methods = TRUE;
5437 * Since these methods are the only ones which are compiled with
5438 * AOT support, and they are not used by runtime startup/shutdown code,
5439 * the runtime will not see AOT methods during AOT compilation,so it
5440 * does not need to support them by creating a fake GOT etc.
5442 cfg = mini_method_compile (method, acfg->opts, mono_get_root_domain (), FALSE, TRUE, 0);
5443 if (cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
5444 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
5445 InterlockedIncrement (&acfg->stats.genericcount);
5448 if (cfg->exception_type != MONO_EXCEPTION_NONE) {
5449 if (acfg->aot_opts.print_skipped_methods)
5450 printf ("Skip (JIT failure): %s\n", mono_method_full_name (method, TRUE));
5451 /* Let the exception happen at runtime */
5455 if (cfg->disable_aot) {
5456 if (acfg->aot_opts.print_skipped_methods)
5457 printf ("Skip (disabled): %s\n", mono_method_full_name (method, TRUE));
5458 InterlockedIncrement (&acfg->stats.ocount);
5459 mono_destroy_compile (cfg);
5463 /* Nullify patches which need no aot processing */
5464 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5465 switch (patch_info->type) {
5466 case MONO_PATCH_INFO_LABEL:
5467 case MONO_PATCH_INFO_BB:
5468 patch_info->type = MONO_PATCH_INFO_NONE;
5475 /* Collect method->token associations from the cfg */
5476 mono_acfg_lock (acfg);
5477 g_hash_table_foreach (cfg->token_info_hash, add_token_info_hash, acfg);
5478 mono_acfg_unlock (acfg);
5481 * Check for absolute addresses.
5484 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5485 switch (patch_info->type) {
5486 case MONO_PATCH_INFO_ABS:
5487 /* unable to handle this */
5496 if (acfg->aot_opts.print_skipped_methods)
5497 printf ("Skip (abs call): %s\n", mono_method_full_name (method, TRUE));
5498 InterlockedIncrement (&acfg->stats.abscount);
5499 mono_destroy_compile (cfg);
5503 /* Lock for the rest of the code */
5504 mono_acfg_lock (acfg);
5507 * Check for methods/klasses we can't encode.
5510 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5511 if (!can_encode_patch (acfg, patch_info))
5516 if (acfg->aot_opts.print_skipped_methods)
5517 printf ("Skip (patches): %s\n", mono_method_full_name (method, TRUE));
5518 acfg->stats.ocount++;
5519 mono_destroy_compile (cfg);
5520 mono_acfg_unlock (acfg);
5524 /* Adds generic instances referenced by this method */
5526 * The depth is used to avoid infinite loops when generic virtual recursion is
5529 depth = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_depth, method));
5531 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5532 switch (patch_info->type) {
5533 case MONO_PATCH_INFO_METHOD: {
5534 MonoMethod *m = patch_info->data.method;
5535 if (m->is_inflated) {
5536 if (!(mono_class_generic_sharing_enabled (m->klass) &&
5537 mono_method_is_generic_sharable_impl (m, FALSE)) &&
5538 !method_has_type_vars (m)) {
5539 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
5540 if (acfg->aot_opts.full_aot)
5541 add_extra_method_with_depth (acfg, mono_marshal_get_native_wrapper (m, TRUE, TRUE), depth + 1);
5543 add_extra_method_with_depth (acfg, m, depth + 1);
5544 add_types_from_method_header (acfg, m);
5547 add_generic_class_with_depth (acfg, m->klass, depth + 5, "method");
5549 if (m->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && !strcmp (m->name, "ElementAddr"))
5550 add_extra_method_with_depth (acfg, m, depth + 1);
5553 case MONO_PATCH_INFO_VTABLE: {
5554 MonoClass *klass = patch_info->data.klass;
5556 if (klass->generic_class && !mono_generic_context_is_sharable (&klass->generic_class->context, FALSE))
5557 add_generic_class_with_depth (acfg, klass, depth + 5, "vtable");
5560 case MONO_PATCH_INFO_SFLDA: {
5561 MonoClass *klass = patch_info->data.field->parent;
5563 /* The .cctor needs to run at runtime. */
5564 if (klass->generic_class && !mono_generic_context_is_sharable (&klass->generic_class->context, FALSE) && mono_class_get_cctor (klass))
5565 add_extra_method_with_depth (acfg, mono_class_get_cctor (klass), depth + 1);
5574 /* Determine whenever the method has GOT slots */
5575 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5576 switch (patch_info->type) {
5577 case MONO_PATCH_INFO_GOT_OFFSET:
5578 case MONO_PATCH_INFO_NONE:
5579 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
5581 case MONO_PATCH_INFO_IMAGE:
5582 /* The assembly is stored in GOT slot 0 */
5583 if (patch_info->data.image != acfg->image)
5584 cfg->has_got_slots = TRUE;
5587 if (!is_plt_patch (patch_info))
5588 cfg->has_got_slots = TRUE;
5593 if (!cfg->has_got_slots)
5594 InterlockedIncrement (&acfg->stats.methods_without_got_slots);
5597 * FIXME: Instead of this mess, allocate the patches from the aot mempool.
5599 /* Make a copy of the patch info which is in the mempool */
5601 MonoJumpInfo *patches = NULL, *patches_end = NULL;
5603 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5604 MonoJumpInfo *new_patch_info = mono_patch_info_dup_mp (acfg->mempool, patch_info);
5607 patches = new_patch_info;
5609 patches_end->next = new_patch_info;
5610 patches_end = new_patch_info;
5612 cfg->patch_info = patches;
5614 /* Make a copy of the unwind info */
5616 GSList *l, *unwind_ops;
5620 for (l = cfg->unwind_ops; l; l = l->next) {
5621 op = mono_mempool_alloc (acfg->mempool, sizeof (MonoUnwindOp));
5622 memcpy (op, l->data, sizeof (MonoUnwindOp));
5623 unwind_ops = g_slist_prepend_mempool (acfg->mempool, unwind_ops, op);
5625 cfg->unwind_ops = g_slist_reverse (unwind_ops);
5627 /* Make a copy of the argument/local info */
5629 MonoInst **args, **locals;
5630 MonoMethodSignature *sig;
5631 MonoMethodHeader *header;
5634 sig = mono_method_signature (method);
5635 args = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * (sig->param_count + sig->hasthis));
5636 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
5637 args [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
5638 memcpy (args [i], cfg->args [i], sizeof (MonoInst));
5642 header = mono_method_get_header (method);
5643 locals = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * header->num_locals);
5644 for (i = 0; i < header->num_locals; ++i) {
5645 locals [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
5646 memcpy (locals [i], cfg->locals [i], sizeof (MonoInst));
5648 cfg->locals = locals;
5651 /* Free some fields used by cfg to conserve memory */
5652 mono_mempool_destroy (cfg->mempool);
5653 cfg->mempool = NULL;
5654 g_free (cfg->varinfo);
5655 cfg->varinfo = NULL;
5659 mono_regstate_free (cfg->rs);
5663 //printf ("Compile: %s\n", mono_method_full_name (method, TRUE));
5665 while (index >= acfg->cfgs_size) {
5666 MonoCompile **new_cfgs;
5669 new_size = acfg->cfgs_size * 2;
5670 new_cfgs = g_new0 (MonoCompile*, new_size);
5671 memcpy (new_cfgs, acfg->cfgs, sizeof (MonoCompile*) * acfg->cfgs_size);
5672 g_free (acfg->cfgs);
5673 acfg->cfgs = new_cfgs;
5674 acfg->cfgs_size = new_size;
5676 acfg->cfgs [index] = cfg;
5678 g_hash_table_insert (acfg->method_to_cfg, cfg->orig_method, cfg);
5681 if (cfg->orig_method->wrapper_type)
5682 g_ptr_array_add (acfg->extra_methods, cfg->orig_method);
5685 mono_acfg_unlock (acfg);
5687 InterlockedIncrement (&acfg->stats.ccount);
5691 compile_thread_main (gpointer *user_data)
5693 MonoDomain *domain = user_data [0];
5694 MonoAotCompile *acfg = user_data [1];
5695 GPtrArray *methods = user_data [2];
5698 mono_thread_attach (domain);
5700 for (i = 0; i < methods->len; ++i)
5701 compile_method (acfg, g_ptr_array_index (methods, i));
5705 load_profile_files (MonoAotCompile *acfg)
5709 int file_index, res, method_index, i;
5712 GList *unordered, *l;
5717 tmp = g_strdup_printf ("%s/.mono/aot-profile-data/%s-%d", g_get_home_dir (), acfg->image->assembly_name, file_index);
5719 if (!g_file_test (tmp, G_FILE_TEST_IS_REGULAR)) {
5724 infile = fopen (tmp, "r");
5727 printf ("Using profile data file '%s'\n", tmp);
5732 res = fscanf (infile, "%32s\n", ver);
5733 if ((res != 1) || strcmp (ver, "#VER:2") != 0) {
5734 printf ("Profile file has wrong version or invalid.\n");
5741 MonoMethodDesc *desc;
5744 if (fgets (name, 1023, infile) == NULL)
5747 /* Kill the newline */
5748 if (strlen (name) > 0)
5749 name [strlen (name) - 1] = '\0';
5751 desc = mono_method_desc_new (name, TRUE);
5753 method = mono_method_desc_search_in_image (desc, acfg->image);
5755 if (method && mono_method_get_token (method)) {
5756 token = mono_method_get_token (method);
5757 method_index = mono_metadata_token_index (token) - 1;
5760 for (i = 0; i < acfg->method_order->len; ++i) {
5761 if (g_ptr_array_index (acfg->method_order, i) == GUINT_TO_POINTER (method_index)) {
5767 g_ptr_array_add (acfg->method_order, GUINT_TO_POINTER (method_index));
5769 //printf ("No method found matching '%s'.\n", name);
5775 /* Add missing methods */
5777 for (method_index = 0; method_index < acfg->image->tables [MONO_TABLE_METHOD].rows; ++method_index) {
5779 for (i = 0; i < acfg->method_order->len; ++i) {
5780 if (g_ptr_array_index (acfg->method_order, i) == GUINT_TO_POINTER (method_index)) {
5786 unordered = g_list_prepend (unordered, GUINT_TO_POINTER (method_index));
5788 unordered = g_list_reverse (unordered);
5789 for (l = unordered; l; l = l->next)
5790 g_ptr_array_add (acfg->method_order, l->data);
5793 /* Used by the LLVM backend */
5795 mono_aot_get_got_offset (MonoJumpInfo *ji)
5797 return get_got_offset (llvm_acfg, ji);
5801 mono_aot_get_method_name (MonoCompile *cfg)
5803 if (llvm_acfg->aot_opts.static_link)
5804 /* Include the assembly name too to avoid duplicate symbol errors */
5805 return g_strdup_printf ("%s_%s", llvm_acfg->assembly_name_sym, get_debug_sym (cfg->orig_method, "", llvm_acfg->method_label_hash));
5807 return get_debug_sym (cfg->orig_method, "", llvm_acfg->method_label_hash);
5811 mono_aot_get_plt_symbol (MonoJumpInfoType type, gconstpointer data)
5813 MonoJumpInfo *ji = mono_mempool_alloc (llvm_acfg->mempool, sizeof (MonoJumpInfo));
5814 MonoPltEntry *plt_entry;
5817 ji->data.target = data;
5819 if (!can_encode_patch (llvm_acfg, ji))
5822 plt_entry = get_plt_entry (llvm_acfg, ji);
5823 plt_entry->llvm_used = TRUE;
5825 #if defined(__APPLE__)
5826 return g_strdup_printf (plt_entry->llvm_symbol + strlen (llvm_acfg->llvm_label_prefix));
5828 return g_strdup_printf (plt_entry->llvm_symbol);
5833 mono_aot_patch_info_dup (MonoJumpInfo* ji)
5837 mono_acfg_lock (llvm_acfg);
5838 res = mono_patch_info_dup_mp (llvm_acfg->mempool, ji);
5839 mono_acfg_unlock (llvm_acfg);
5849 * Emit the LLVM code into an LLVM bytecode file, and compile it using the LLVM
5853 emit_llvm_file (MonoAotCompile *acfg)
5855 char *command, *opts;
5857 MonoJumpInfo *patch_info;
5860 * When using LLVM, we let llvm emit the got since the LLVM IL needs to refer
5864 /* Compute the final size of the got */
5865 for (i = 0; i < acfg->nmethods; ++i) {
5866 if (acfg->cfgs [i]) {
5867 for (patch_info = acfg->cfgs [i]->patch_info; patch_info; patch_info = patch_info->next) {
5868 if (patch_info->type != MONO_PATCH_INFO_NONE) {
5869 if (!is_plt_patch (patch_info))
5870 get_got_offset (acfg, patch_info);
5872 get_plt_entry (acfg, patch_info);
5878 acfg->final_got_size = acfg->got_offset + acfg->plt_offset;
5880 if (acfg->aot_opts.full_aot) {
5884 * Need to add the got entries used by the trampolines.
5885 * This is only a conservative approximation.
5887 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
5888 /* For the generic + rgctx trampolines */
5889 acfg->final_got_size += 200;
5890 /* For the specific trampolines */
5891 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype)
5892 acfg->final_got_size += acfg->num_trampolines [ntype] * 2;
5897 mono_llvm_emit_aot_module ("temp.bc", acfg->final_got_size);
5900 * FIXME: Experiment with adding optimizations, the -std-compile-opts set takes
5901 * a lot of time, and doesn't seem to save much space.
5902 * The following optimizations cannot be enabled:
5904 * - 'jump-threading' changes our blockaddress references to int constants.
5905 * - 'basiccg' fails because it contains:
5906 * if (CS && !isa<IntrinsicInst>(II)) {
5907 * and isa<IntrinsicInst> is false for invokes to intrinsics (iltests.exe).
5908 * - 'prune-eh' and 'functionattrs' depend on 'basiccg'.
5909 * The opt list below was produced by taking the output of:
5910 * llvm-as < /dev/null | opt -O2 -disable-output -debug-pass=Arguments
5911 * then removing tailcallelim + the global opts, and adding a second gvn.
5913 opts = g_strdup ("-instcombine -simplifycfg");
5914 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 -preverify -domtree -verify");
5916 command = g_strdup_printf ("%sopt -f %s -o temp.opt.bc temp.bc", acfg->aot_opts.llvm_path, opts);
5917 printf ("Executing opt: %s\n", command);
5918 if (system (command) != 0) {
5924 if (!acfg->llc_args)
5925 acfg->llc_args = g_string_new ("");
5927 /* Verbose asm slows down llc greatly */
5928 g_string_append (acfg->llc_args, " -asm-verbose=false");
5930 if (acfg->aot_opts.mtriple)
5931 g_string_append_printf (acfg->llc_args, " -mtriple=%s", acfg->aot_opts.mtriple);
5933 if (llvm_acfg->aot_opts.static_link)
5934 g_string_append_printf (acfg->llc_args, " -relocation-model=static");
5936 g_string_append_printf (acfg->llc_args, " -relocation-model=pic");
5937 unlink (acfg->tmpfname);
5939 command = g_strdup_printf ("%sllc %s -disable-gnu-eh-frame -enable-mono-eh-frame -o %s temp.opt.bc", acfg->aot_opts.llvm_path, acfg->llc_args->str, acfg->tmpfname);
5941 printf ("Executing llc: %s\n", command);
5943 if (system (command) != 0) {
5950 emit_code (MonoAotCompile *acfg)
5952 int oindex, i, prev_index;
5954 char end_symbol [256];
5956 #if defined(TARGET_POWERPC64)
5957 sprintf (symbol, ".Lgot_addr");
5958 emit_section_change (acfg, ".text", 0);
5959 emit_alignment (acfg, 8);
5960 emit_label (acfg, symbol);
5961 emit_pointer (acfg, acfg->got_symbol);
5965 * This global symbol is used to compute the address of each method using the
5966 * code_offsets array. It is also used to compute the memory ranges occupied by
5967 * AOT code, so it must be equal to the address of the first emitted method.
5969 sprintf (symbol, "methods");
5970 emit_section_change (acfg, ".text", 0);
5971 emit_alignment (acfg, 8);
5973 for (i = 0; i < acfg->nmethods; ++i) {
5974 if (acfg->cfgs [i] && acfg->cfgs [i]->compile_llvm) {
5975 fprintf (acfg->fp, "\n.set methods, %s\n", acfg->cfgs [i]->asm_symbol);
5979 if (i == acfg->nmethods)
5980 /* No LLVM compiled methods */
5981 emit_label (acfg, symbol);
5983 emit_label (acfg, symbol);
5987 * Emit some padding so the local symbol for the first method doesn't have the
5988 * same address as 'methods'.
5990 #if defined(__default_codegen__)
5991 emit_zero_bytes (acfg, 16);
5992 #elif defined(__native_client_codegen__)
5994 const int kPaddingSize = 16;
5995 guint8 pad_buffer[kPaddingSize];
5996 mono_arch_nacl_pad (pad_buffer, kPaddingSize);
5997 emit_bytes (acfg, pad_buffer, kPaddingSize);
6001 for (oindex = 0; oindex < acfg->method_order->len; ++oindex) {
6005 i = GPOINTER_TO_UINT (g_ptr_array_index (acfg->method_order, oindex));
6007 cfg = acfg->cfgs [i];
6012 method = cfg->orig_method;
6014 /* Emit unbox trampoline */
6015 if (acfg->aot_opts.full_aot && cfg->orig_method->klass->valuetype && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
6016 sprintf (symbol, "ut_%d", get_method_index (acfg, method));
6018 emit_section_change (acfg, ".text", 0);
6019 #ifdef __native_client_codegen__
6020 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
6023 if (acfg->thumb_mixed && cfg->compile_llvm)
6024 fprintf (acfg->fp, "\n.thumb_func\n");
6026 emit_label (acfg, symbol);
6028 arch_emit_unbox_trampoline (acfg, cfg, cfg->orig_method, cfg->asm_symbol);
6031 if (cfg->compile_llvm)
6032 acfg->stats.llvm_count ++;
6034 emit_method_code (acfg, cfg);
6037 sprintf (symbol, "methods_end");
6038 emit_section_change (acfg, ".text", 0);
6039 emit_alignment (acfg, 8);
6040 emit_label (acfg, symbol);
6043 * Add .no_dead_strip directives for all LLVM methods to prevent the OSX linker
6044 * from optimizing them away, since it doesn't see that code_offsets references them.
6045 * JITted methods don't need this since they are referenced using assembler local
6047 * FIXME: This is why write-symbols doesn't work on OSX ?
6049 if (acfg->llvm && acfg->need_no_dead_strip) {
6050 fprintf (acfg->fp, "\n");
6051 for (i = 0; i < acfg->nmethods; ++i) {
6052 if (acfg->cfgs [i] && acfg->cfgs [i]->compile_llvm)
6053 fprintf (acfg->fp, ".no_dead_strip %s\n", acfg->cfgs [i]->asm_symbol);
6057 sprintf (symbol, "code_offsets");
6058 emit_section_change (acfg, RODATA_SECT, 1);
6059 emit_alignment (acfg, 8);
6060 emit_label (acfg, symbol);
6062 acfg->stats.offsets_size += acfg->nmethods * 4;
6064 sprintf (end_symbol, "methods");
6065 for (i = 0; i < acfg->nmethods; ++i) {
6066 if (acfg->cfgs [i]) {
6067 emit_symbol_diff (acfg, acfg->cfgs [i]->asm_symbol, end_symbol, 0);
6069 emit_int32 (acfg, 0xffffffff);
6074 /* Emit a sorted table mapping methods to their unbox trampolines */
6075 sprintf (symbol, "unbox_trampolines");
6076 emit_section_change (acfg, RODATA_SECT, 1);
6077 emit_alignment (acfg, 8);
6078 emit_label (acfg, symbol);
6080 sprintf (end_symbol, "methods");
6082 for (i = 0; i < acfg->nmethods; ++i) {
6087 cfg = acfg->cfgs [i];
6091 method = cfg->orig_method;
6093 if (acfg->aot_opts.full_aot && cfg->orig_method->klass->valuetype && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
6094 index = get_method_index (acfg, method);
6095 sprintf (symbol, "ut_%d", index);
6097 emit_int32 (acfg, index);
6098 emit_symbol_diff (acfg, symbol, end_symbol, 0);
6099 /* Make sure the table is sorted by index */
6100 g_assert (index > prev_index);
6104 sprintf (symbol, "unbox_trampolines_end");
6105 emit_label (acfg, symbol);
6109 emit_info (MonoAotCompile *acfg)
6115 offsets = g_new0 (gint32, acfg->nmethods);
6117 for (oindex = 0; oindex < acfg->method_order->len; ++oindex) {
6118 i = GPOINTER_TO_UINT (g_ptr_array_index (acfg->method_order, oindex));
6120 if (acfg->cfgs [i]) {
6121 emit_method_info (acfg, acfg->cfgs [i]);
6122 offsets [i] = acfg->cfgs [i]->method_info_offset;
6128 sprintf (symbol, "method_info_offsets");
6129 emit_section_change (acfg, RODATA_SECT, 1);
6130 emit_alignment (acfg, 8);
6131 emit_label (acfg, symbol);
6133 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->nmethods, 10, offsets);
6138 #endif /* #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT) */
6140 #define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
6141 #define mix(a,b,c) { \
6142 a -= c; a ^= rot(c, 4); c += b; \
6143 b -= a; b ^= rot(a, 6); a += c; \
6144 c -= b; c ^= rot(b, 8); b += a; \
6145 a -= c; a ^= rot(c,16); c += b; \
6146 b -= a; b ^= rot(a,19); a += c; \
6147 c -= b; c ^= rot(b, 4); b += a; \
6149 #define final(a,b,c) { \
6150 c ^= b; c -= rot(b,14); \
6151 a ^= c; a -= rot(c,11); \
6152 b ^= a; b -= rot(a,25); \
6153 c ^= b; c -= rot(b,16); \
6154 a ^= c; a -= rot(c,4); \
6155 b ^= a; b -= rot(a,14); \
6156 c ^= b; c -= rot(b,24); \
6160 mono_aot_type_hash (MonoType *t1)
6162 guint hash = t1->type;
6164 hash |= t1->byref << 6; /* do not collide with t1->type values */
6166 case MONO_TYPE_VALUETYPE:
6167 case MONO_TYPE_CLASS:
6168 case MONO_TYPE_SZARRAY:
6169 /* check if the distribution is good enough */
6170 return ((hash << 5) - hash) ^ mono_metadata_str_hash (t1->data.klass->name);
6172 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
6173 case MONO_TYPE_ARRAY:
6174 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
6175 case MONO_TYPE_GENERICINST:
6176 return ((hash << 5) - hash) ^ 0;
6183 * mono_aot_method_hash:
6185 * Return a hash code for methods which only depends on metadata.
6188 mono_aot_method_hash (MonoMethod *method)
6190 MonoMethodSignature *sig;
6194 guint32 *hashes_start, *hashes;
6196 MonoGenericInst *ginst = NULL;
6198 /* Similar to the hash in mono_method_get_imt_slot () */
6200 sig = mono_method_signature (method);
6202 if (method->is_inflated)
6203 ginst = ((MonoMethodInflated*)method)->context.method_inst;
6205 hashes_count = sig->param_count + 5 + (ginst ? ginst->type_argc : 0);
6206 hashes_start = g_malloc0 (hashes_count * sizeof (guint32));
6207 hashes = hashes_start;
6209 /* Some wrappers are assigned to random classes */
6210 if (!method->wrapper_type || method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
6211 klass = method->klass;
6213 klass = mono_defaults.object_class;
6215 if (!method->wrapper_type) {
6216 char *full_name = mono_type_full_name (&klass->byval_arg);
6218 hashes [0] = mono_metadata_str_hash (full_name);
6222 hashes [0] = mono_metadata_str_hash (klass->name);
6223 hashes [1] = mono_metadata_str_hash (klass->name_space);
6225 if (method->wrapper_type == MONO_WRAPPER_STFLD || method->wrapper_type == MONO_WRAPPER_LDFLD || method->wrapper_type == MONO_WRAPPER_LDFLDA)
6226 /* The method name includes a stringified pointer */
6229 hashes [2] = mono_metadata_str_hash (method->name);
6230 hashes [3] = method->wrapper_type;
6231 hashes [4] = mono_aot_type_hash (sig->ret);
6233 for (i = 0; i < sig->param_count; i++) {
6234 hashes [hindex ++] = mono_aot_type_hash (sig->params [i]);
6237 for (i = 0; i < ginst->type_argc; ++i)
6238 hashes [hindex ++] = mono_aot_type_hash (ginst->type_argv [i]);
6240 g_assert (hindex == hashes_count);
6242 /* Setup internal state */
6243 a = b = c = 0xdeadbeef + (((guint32)hashes_count)<<2);
6245 /* Handle most of the hashes */
6246 while (hashes_count > 3) {
6255 /* Handle the last 3 hashes (all the case statements fall through) */
6256 switch (hashes_count) {
6257 case 3 : c += hashes [2];
6258 case 2 : b += hashes [1];
6259 case 1 : a += hashes [0];
6261 case 0: /* nothing left to add */
6265 free (hashes_start);
6274 * mono_aot_wrapper_name:
6276 * Return a string which uniqely identifies the given wrapper method.
6279 mono_aot_wrapper_name (MonoMethod *method)
6281 char *name, *tmpsig, *klass_desc;
6283 tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
6285 switch (method->wrapper_type) {
6286 case MONO_WRAPPER_RUNTIME_INVOKE:
6287 if (!strcmp (method->name, "runtime_invoke_dynamic"))
6288 name = g_strdup_printf ("(wrapper runtime-invoke-dynamic)");
6290 name = g_strdup_printf ("%s (%s)", method->name, tmpsig);
6293 klass_desc = mono_type_full_name (&method->klass->byval_arg);
6294 name = g_strdup_printf ("%s:%s (%s)", klass_desc, method->name, tmpsig);
6295 g_free (klass_desc);
6305 * mono_aot_get_array_helper_from_wrapper;
6307 * Get the helper method in Array called by an array wrapper method.
6310 mono_aot_get_array_helper_from_wrapper (MonoMethod *method)
6314 MonoGenericContext ctx;
6315 MonoType *args [16];
6316 char *mname, *iname, *s, *s2, *helper_name = NULL;
6318 prefix = "System.Collections.Generic";
6319 s = g_strdup_printf ("%s", method->name + strlen (prefix) + 1);
6320 s2 = strstr (s, "`1.");
6326 //printf ("X: %s %s\n", iname, mname);
6328 if (!strcmp (iname, "IList"))
6329 helper_name = g_strdup_printf ("InternalArray__%s", mname);
6331 helper_name = g_strdup_printf ("InternalArray__%s_%s", iname, mname);
6332 m = mono_class_get_method_from_name (mono_defaults.array_class, helper_name, mono_method_signature (method)->param_count);
6334 g_free (helper_name);
6337 if (m->is_generic) {
6338 memset (&ctx, 0, sizeof (ctx));
6339 args [0] = &method->klass->element_class->byval_arg;
6340 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
6341 m = mono_class_inflate_generic_method (m, &ctx);
6347 #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
6349 typedef struct HashEntry {
6350 guint32 key, value, index;
6351 struct HashEntry *next;
6355 * emit_extra_methods:
6357 * Emit methods which are not in the METHOD table, like wrappers.
6360 emit_extra_methods (MonoAotCompile *acfg)
6362 int i, table_size, buf_size;
6365 guint32 *info_offsets;
6368 HashEntry *entry, *new_entry;
6369 int nmethods, max_chain_length;
6372 info_offsets = g_new0 (guint32, acfg->extra_methods->len);
6374 /* Emit method info */
6376 for (i = 0; i < acfg->extra_methods->len; ++i) {
6377 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
6378 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
6384 p = buf = g_malloc (buf_size);
6388 method = cfg->method_to_register;
6390 encode_method_ref (acfg, method, p, &p);
6392 g_assert ((p - buf) < buf_size);
6394 info_offsets [i] = add_to_blob (acfg, buf, p - buf);
6399 * Construct a chained hash table for mapping indexes in extra_method_info to
6402 table_size = g_spaced_primes_closest ((int)(nmethods * 1.5));
6403 table = g_ptr_array_sized_new (table_size);
6404 for (i = 0; i < table_size; ++i)
6405 g_ptr_array_add (table, NULL);
6406 chain_lengths = g_new0 (int, table_size);
6407 max_chain_length = 0;
6408 for (i = 0; i < acfg->extra_methods->len; ++i) {
6409 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
6410 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
6416 key = info_offsets [i];
6417 value = get_method_index (acfg, method);
6419 hash = mono_aot_method_hash (method) % table_size;
6421 chain_lengths [hash] ++;
6422 max_chain_length = MAX (max_chain_length, chain_lengths [hash]);
6424 new_entry = mono_mempool_alloc0 (acfg->mempool, sizeof (HashEntry));
6425 new_entry->key = key;
6426 new_entry->value = value;
6428 entry = g_ptr_array_index (table, hash);
6429 if (entry == NULL) {
6430 new_entry->index = hash;
6431 g_ptr_array_index (table, hash) = new_entry;
6434 entry = entry->next;
6436 entry->next = new_entry;
6437 new_entry->index = table->len;
6438 g_ptr_array_add (table, new_entry);
6442 //printf ("MAX: %d\n", max_chain_length);
6444 /* Emit the table */
6445 sprintf (symbol, "extra_method_table");
6446 emit_section_change (acfg, RODATA_SECT, 0);
6447 emit_alignment (acfg, 8);
6448 emit_label (acfg, symbol);
6450 emit_int32 (acfg, table_size);
6451 for (i = 0; i < table->len; ++i) {
6452 HashEntry *entry = g_ptr_array_index (table, i);
6454 if (entry == NULL) {
6455 emit_int32 (acfg, 0);
6456 emit_int32 (acfg, 0);
6457 emit_int32 (acfg, 0);
6459 //g_assert (entry->key > 0);
6460 emit_int32 (acfg, entry->key);
6461 emit_int32 (acfg, entry->value);
6463 emit_int32 (acfg, entry->next->index);
6465 emit_int32 (acfg, 0);
6470 * Emit a table reverse mapping method indexes to their index in extra_method_info.
6471 * This is used by mono_aot_find_jit_info ().
6473 sprintf (symbol, "extra_method_info_offsets");
6474 emit_section_change (acfg, RODATA_SECT, 0);
6475 emit_alignment (acfg, 8);
6476 emit_label (acfg, symbol);
6478 emit_int32 (acfg, acfg->extra_methods->len);
6479 for (i = 0; i < acfg->extra_methods->len; ++i) {
6480 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
6482 emit_int32 (acfg, get_method_index (acfg, method));
6483 emit_int32 (acfg, info_offsets [i]);
6488 emit_exception_info (MonoAotCompile *acfg)
6494 offsets = g_new0 (gint32, acfg->nmethods);
6495 for (i = 0; i < acfg->nmethods; ++i) {
6496 if (acfg->cfgs [i]) {
6497 emit_exception_debug_info (acfg, acfg->cfgs [i]);
6498 offsets [i] = acfg->cfgs [i]->ex_info_offset;
6504 sprintf (symbol, "ex_info_offsets");
6505 emit_section_change (acfg, RODATA_SECT, 1);
6506 emit_alignment (acfg, 8);
6507 emit_label (acfg, symbol);
6509 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->nmethods, 10, offsets);
6514 emit_unwind_info (MonoAotCompile *acfg)
6520 * The unwind info contains a lot of duplicates so we emit each unique
6521 * entry once, and only store the offset from the start of the table in the
6525 sprintf (symbol, "unwind_info");
6526 emit_section_change (acfg, RODATA_SECT, 1);
6527 emit_alignment (acfg, 8);
6528 emit_label (acfg, symbol);
6530 for (i = 0; i < acfg->unwind_ops->len; ++i) {
6531 guint32 index = GPOINTER_TO_UINT (g_ptr_array_index (acfg->unwind_ops, i));
6532 guint8 *unwind_info;
6533 guint32 unwind_info_len;
6537 unwind_info = mono_get_cached_unwind_info (index, &unwind_info_len);
6540 encode_value (unwind_info_len, p, &p);
6541 emit_bytes (acfg, buf, p - buf);
6542 emit_bytes (acfg, unwind_info, unwind_info_len);
6544 acfg->stats.unwind_info_size += (p - buf) + unwind_info_len;
6549 emit_class_info (MonoAotCompile *acfg)
6555 offsets = g_new0 (gint32, acfg->image->tables [MONO_TABLE_TYPEDEF].rows);
6556 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i)
6557 offsets [i] = emit_klass_info (acfg, MONO_TOKEN_TYPE_DEF | (i + 1));
6559 sprintf (symbol, "class_info_offsets");
6560 emit_section_change (acfg, RODATA_SECT, 1);
6561 emit_alignment (acfg, 8);
6562 emit_label (acfg, symbol);
6564 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->image->tables [MONO_TABLE_TYPEDEF].rows, 10, offsets);
6568 typedef struct ClassNameTableEntry {
6569 guint32 token, index;
6570 struct ClassNameTableEntry *next;
6571 } ClassNameTableEntry;
6574 emit_class_name_table (MonoAotCompile *acfg)
6577 guint32 token, hash;
6582 ClassNameTableEntry *entry, *new_entry;
6585 * Construct a chained hash table for mapping class names to typedef tokens.
6587 table_size = g_spaced_primes_closest ((int)(acfg->image->tables [MONO_TABLE_TYPEDEF].rows * 1.5));
6588 table = g_ptr_array_sized_new (table_size);
6589 for (i = 0; i < table_size; ++i)
6590 g_ptr_array_add (table, NULL);
6591 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
6592 token = MONO_TOKEN_TYPE_DEF | (i + 1);
6593 klass = mono_class_get (acfg->image, token);
6595 mono_loader_clear_error ();
6598 full_name = mono_type_get_name_full (mono_class_get_type (klass), MONO_TYPE_NAME_FORMAT_FULL_NAME);
6599 hash = mono_metadata_str_hash (full_name) % table_size;
6602 /* FIXME: Allocate from the mempool */
6603 new_entry = g_new0 (ClassNameTableEntry, 1);
6604 new_entry->token = token;
6606 entry = g_ptr_array_index (table, hash);
6607 if (entry == NULL) {
6608 new_entry->index = hash;
6609 g_ptr_array_index (table, hash) = new_entry;
6612 entry = entry->next;
6614 entry->next = new_entry;
6615 new_entry->index = table->len;
6616 g_ptr_array_add (table, new_entry);
6620 /* Emit the table */
6621 sprintf (symbol, "class_name_table");
6622 emit_section_change (acfg, RODATA_SECT, 0);
6623 emit_alignment (acfg, 8);
6624 emit_label (acfg, symbol);
6626 /* FIXME: Optimize memory usage */
6627 g_assert (table_size < 65000);
6628 emit_int16 (acfg, table_size);
6629 g_assert (table->len < 65000);
6630 for (i = 0; i < table->len; ++i) {
6631 ClassNameTableEntry *entry = g_ptr_array_index (table, i);
6633 if (entry == NULL) {
6634 emit_int16 (acfg, 0);
6635 emit_int16 (acfg, 0);
6637 emit_int16 (acfg, mono_metadata_token_index (entry->token));
6639 emit_int16 (acfg, entry->next->index);
6641 emit_int16 (acfg, 0);
6647 emit_image_table (MonoAotCompile *acfg)
6653 * The image table is small but referenced in a lot of places.
6654 * So we emit it at once, and reference its elements by an index.
6657 sprintf (symbol, "image_table");
6658 emit_section_change (acfg, RODATA_SECT, 1);
6659 emit_alignment (acfg, 8);
6660 emit_label (acfg, symbol);
6662 emit_int32 (acfg, acfg->image_table->len);
6663 for (i = 0; i < acfg->image_table->len; i++) {
6664 MonoImage *image = (MonoImage*)g_ptr_array_index (acfg->image_table, i);
6665 MonoAssemblyName *aname = &image->assembly->aname;
6667 /* FIXME: Support multi-module assemblies */
6668 g_assert (image->assembly->image == image);
6670 emit_string (acfg, image->assembly_name);
6671 emit_string (acfg, image->guid);
6672 emit_string (acfg, aname->culture ? aname->culture : "");
6673 emit_string (acfg, (const char*)aname->public_key_token);
6675 emit_alignment (acfg, 8);
6676 emit_int32 (acfg, aname->flags);
6677 emit_int32 (acfg, aname->major);
6678 emit_int32 (acfg, aname->minor);
6679 emit_int32 (acfg, aname->build);
6680 emit_int32 (acfg, aname->revision);
6685 emit_got_info (MonoAotCompile *acfg)
6688 int i, first_plt_got_patch, buf_size;
6690 guint32 *got_info_offsets;
6692 /* Add the patches needed by the PLT to the GOT */
6693 acfg->plt_got_offset_base = acfg->got_offset;
6694 first_plt_got_patch = acfg->got_patches->len;
6695 for (i = 1; i < acfg->plt_offset; ++i) {
6696 MonoPltEntry *plt_entry = g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
6698 g_ptr_array_add (acfg->got_patches, plt_entry->ji);
6700 acfg->stats.got_slot_types [plt_entry->ji->type] ++;
6703 acfg->got_offset += acfg->plt_offset;
6707 * - optimize offsets table.
6708 * - reduce number of exported symbols.
6709 * - emit info for a klass only once.
6710 * - determine when a method uses a GOT slot which is guaranteed to be already
6712 * - clean up and document the code.
6713 * - use String.Empty in class libs.
6716 /* Encode info required to decode shared GOT entries */
6717 buf_size = acfg->got_patches->len * 128;
6718 p = buf = mono_mempool_alloc (acfg->mempool, buf_size);
6719 got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->got_patches->len * sizeof (guint32));
6720 acfg->plt_got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->plt_offset * sizeof (guint32));
6722 if (acfg->plt_offset)
6723 acfg->plt_got_info_offsets [0] = 0;
6724 for (i = 0; i < acfg->got_patches->len; ++i) {
6725 MonoJumpInfo *ji = g_ptr_array_index (acfg->got_patches, i);
6730 encode_value (ji->type, p, &p);
6732 encode_patch (acfg, ji, p, &p);
6733 acfg->stats.got_slot_info_sizes [ji->type] += p - p2;
6734 g_assert (p - buf <= buf_size);
6735 got_info_offsets [i] = add_to_blob (acfg, buf, p - buf);
6737 if (i >= first_plt_got_patch)
6738 acfg->plt_got_info_offsets [i - first_plt_got_patch + 1] = got_info_offsets [i];
6739 acfg->stats.got_info_size += p - buf;
6742 /* Emit got_info_offsets table */
6743 sprintf (symbol, "got_info_offsets");
6744 emit_section_change (acfg, RODATA_SECT, 1);
6745 emit_alignment (acfg, 8);
6746 emit_label (acfg, symbol);
6748 /* No need to emit offsets for the got plt entries, the plt embeds them directly */
6749 acfg->stats.offsets_size += emit_offset_table (acfg, first_plt_got_patch, 10, (gint32*)got_info_offsets);
6753 emit_got (MonoAotCompile *acfg)
6758 /* Don't make GOT global so accesses to it don't need relocations */
6759 sprintf (symbol, "%s", acfg->got_symbol);
6760 emit_section_change (acfg, ".bss", 0);
6761 emit_alignment (acfg, 8);
6762 emit_local_symbol (acfg, symbol, "got_end", FALSE);
6763 emit_label (acfg, symbol);
6764 if (acfg->got_offset > 0)
6765 emit_zero_bytes (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
6767 sprintf (symbol, "got_end");
6768 emit_label (acfg, symbol);
6772 typedef struct GlobalsTableEntry {
6773 guint32 value, index;
6774 struct GlobalsTableEntry *next;
6775 } GlobalsTableEntry;
6778 emit_globals (MonoAotCompile *acfg)
6784 GlobalsTableEntry *entry, *new_entry;
6786 if (!acfg->aot_opts.static_link)
6790 * When static linking, we emit a table containing our globals.
6794 * Construct a chained hash table for mapping global names to their index in
6795 * the globals table.
6797 table_size = g_spaced_primes_closest ((int)(acfg->globals->len * 1.5));
6798 table = g_ptr_array_sized_new (table_size);
6799 for (i = 0; i < table_size; ++i)
6800 g_ptr_array_add (table, NULL);
6801 for (i = 0; i < acfg->globals->len; ++i) {
6802 char *name = g_ptr_array_index (acfg->globals, i);
6804 hash = mono_metadata_str_hash (name) % table_size;
6806 /* FIXME: Allocate from the mempool */
6807 new_entry = g_new0 (GlobalsTableEntry, 1);
6808 new_entry->value = i;
6810 entry = g_ptr_array_index (table, hash);
6811 if (entry == NULL) {
6812 new_entry->index = hash;
6813 g_ptr_array_index (table, hash) = new_entry;
6816 entry = entry->next;
6818 entry->next = new_entry;
6819 new_entry->index = table->len;
6820 g_ptr_array_add (table, new_entry);
6824 /* Emit the table */
6825 sprintf (symbol, ".Lglobals_hash");
6826 emit_section_change (acfg, RODATA_SECT, 0);
6827 emit_alignment (acfg, 8);
6828 emit_label (acfg, symbol);
6830 /* FIXME: Optimize memory usage */
6831 g_assert (table_size < 65000);
6832 emit_int16 (acfg, table_size);
6833 for (i = 0; i < table->len; ++i) {
6834 GlobalsTableEntry *entry = g_ptr_array_index (table, i);
6836 if (entry == NULL) {
6837 emit_int16 (acfg, 0);
6838 emit_int16 (acfg, 0);
6840 emit_int16 (acfg, entry->value + 1);
6842 emit_int16 (acfg, entry->next->index);
6844 emit_int16 (acfg, 0);
6848 /* Emit the names */
6849 for (i = 0; i < acfg->globals->len; ++i) {
6850 char *name = g_ptr_array_index (acfg->globals, i);
6852 sprintf (symbol, "name_%d", i);
6853 emit_section_change (acfg, RODATA_SECT, 1);
6855 emit_alignment (acfg, 4);
6857 emit_label (acfg, symbol);
6858 emit_string (acfg, name);
6861 /* Emit the globals table */
6862 sprintf (symbol, "globals");
6863 emit_section_change (acfg, ".data", 0);
6864 /* This is not a global, since it is accessed by the init function */
6865 emit_alignment (acfg, 8);
6866 emit_label (acfg, symbol);
6868 sprintf (symbol, "%sglobals_hash", acfg->temp_prefix);
6869 emit_pointer (acfg, symbol);
6871 for (i = 0; i < acfg->globals->len; ++i) {
6872 char *name = g_ptr_array_index (acfg->globals, i);
6874 sprintf (symbol, "name_%d", i);
6875 emit_pointer (acfg, symbol);
6877 sprintf (symbol, "%s", name);
6878 emit_pointer (acfg, symbol);
6880 /* Null terminate the table */
6881 emit_int32 (acfg, 0);
6882 emit_int32 (acfg, 0);
6886 emit_autoreg (MonoAotCompile *acfg)
6891 * Emit a function into the .ctor section which will be called by the ELF
6892 * loader to register this module with the runtime.
6894 if (! (!acfg->use_bin_writer && acfg->aot_opts.static_link && acfg->aot_opts.autoreg))
6897 symbol = g_strdup_printf ("_%s_autoreg", acfg->static_linking_symbol);
6899 arch_emit_autoreg (acfg, symbol);
6905 emit_mem_end (MonoAotCompile *acfg)
6909 sprintf (symbol, "mem_end");
6910 emit_section_change (acfg, ".text", 1);
6911 emit_alignment (acfg, 8);
6912 emit_label (acfg, symbol);
6916 * Emit a structure containing all the information not stored elsewhere.
6919 emit_file_info (MonoAotCompile *acfg)
6924 const char *gc_name;
6927 emit_string_symbol (acfg, "assembly_guid" , acfg->image->guid);
6929 if (acfg->aot_opts.bind_to_runtime_version) {
6930 build_info = mono_get_runtime_build_info ();
6931 emit_string_symbol (acfg, "runtime_version", build_info);
6932 g_free (build_info);
6934 emit_string_symbol (acfg, "runtime_version", "");
6937 /* Emit a string holding the assembly name */
6938 emit_string_symbol (acfg, "assembly_name", acfg->image->assembly->aname.name);
6941 * The managed allocators are GC specific, so can't use an AOT image created by one GC
6944 gc_name = mono_gc_get_gc_name ();
6945 gc_name_offset = add_to_blob (acfg, (guint8*)gc_name, strlen (gc_name) + 1);
6947 sprintf (symbol, "mono_aot_file_info");
6948 emit_section_change (acfg, ".data", 0);
6949 emit_alignment (acfg, 8);
6950 emit_label (acfg, symbol);
6951 if (!acfg->aot_opts.static_link)
6952 emit_global (acfg, symbol, FALSE);
6954 /* The data emitted here must match MonoAotFileInfo. */
6956 emit_int32 (acfg, MONO_AOT_FILE_VERSION);
6957 emit_int32 (acfg, 0);
6960 * We emit pointers to our data structures instead of emitting global symbols which
6961 * point to them, to reduce the number of globals, and because using globals leads to
6962 * various problems (i.e. arm/thumb).
6964 emit_pointer (acfg, acfg->got_symbol);
6965 emit_pointer (acfg, "methods");
6968 * Emit a reference to the mono_eh_frame table created by our modified LLVM compiler.
6970 emit_pointer (acfg, "mono_eh_frame");
6972 emit_pointer (acfg, NULL);
6974 emit_pointer (acfg, "blob");
6975 emit_pointer (acfg, "class_name_table");
6976 emit_pointer (acfg, "class_info_offsets");
6977 emit_pointer (acfg, "method_info_offsets");
6978 emit_pointer (acfg, "ex_info_offsets");
6979 emit_pointer (acfg, "code_offsets");
6980 emit_pointer (acfg, "extra_method_info_offsets");
6981 emit_pointer (acfg, "extra_method_table");
6982 emit_pointer (acfg, "got_info_offsets");
6983 emit_pointer (acfg, "methods_end");
6984 emit_pointer (acfg, "unwind_info");
6985 emit_pointer (acfg, "mem_end");
6986 emit_pointer (acfg, "image_table");
6987 emit_pointer (acfg, "plt");
6988 emit_pointer (acfg, "plt_end");
6989 emit_pointer (acfg, "assembly_guid");
6990 emit_pointer (acfg, "runtime_version");
6991 if (acfg->num_trampoline_got_entries) {
6992 emit_pointer (acfg, "specific_trampolines");
6993 emit_pointer (acfg, "static_rgctx_trampolines");
6994 emit_pointer (acfg, "imt_thunks");
6996 emit_pointer (acfg, NULL);
6997 emit_pointer (acfg, NULL);
6998 emit_pointer (acfg, NULL);
7000 if (acfg->thumb_mixed) {
7001 emit_pointer (acfg, "thumb_end");
7003 emit_pointer (acfg, NULL);
7005 if (acfg->aot_opts.static_link) {
7006 emit_pointer (acfg, "globals");
7008 emit_pointer (acfg, NULL);
7010 emit_pointer (acfg, "assembly_name");
7011 emit_pointer (acfg, "unbox_trampolines");
7012 emit_pointer (acfg, "unbox_trampolines_end");
7014 emit_int32 (acfg, acfg->plt_got_offset_base);
7015 emit_int32 (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
7016 emit_int32 (acfg, acfg->plt_offset);
7017 emit_int32 (acfg, acfg->nmethods);
7018 emit_int32 (acfg, acfg->flags);
7019 emit_int32 (acfg, acfg->opts);
7020 emit_int32 (acfg, acfg->simd_opts);
7021 emit_int32 (acfg, gc_name_offset);
7023 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
7024 emit_int32 (acfg, acfg->num_trampolines [i]);
7025 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
7026 emit_int32 (acfg, acfg->trampoline_got_offset_base [i]);
7027 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
7028 emit_int32 (acfg, acfg->trampoline_size [i]);
7030 #if defined (TARGET_ARM) && defined (__APPLE__)
7035 t.type = MONO_TYPE_R8;
7036 mono_type_size (&t, &align);
7038 emit_int32 (acfg, align);
7040 t.type = MONO_TYPE_I8;
7041 mono_type_size (&t, &align);
7043 emit_int32 (acfg, align);
7046 emit_int32 (acfg, __alignof__ (double));
7047 emit_int32 (acfg, __alignof__ (gint64));
7050 if (acfg->aot_opts.static_link) {
7054 * Emit a global symbol which can be passed by an embedding app to
7055 * mono_aot_register_module (). The symbol points to a pointer to the the file info
7058 #if defined(__APPLE__) && !defined(__native_client_codegen__)
7059 sprintf (symbol, "_mono_aot_module_%s_info", acfg->image->assembly->aname.name);
7061 sprintf (symbol, "mono_aot_module_%s_info", acfg->image->assembly->aname.name);
7064 /* Get rid of characters which cannot occur in symbols */
7066 for (p = symbol; *p; ++p) {
7067 if (!(isalnum (*p) || *p == '_'))
7070 acfg->static_linking_symbol = g_strdup (symbol);
7071 emit_global_inner (acfg, symbol, FALSE);
7072 emit_label (acfg, symbol);
7073 emit_pointer (acfg, "mono_aot_file_info");
7078 emit_blob (MonoAotCompile *acfg)
7082 sprintf (symbol, "blob");
7083 emit_section_change (acfg, RODATA_SECT, 1);
7084 emit_alignment (acfg, 8);
7085 emit_label (acfg, symbol);
7087 emit_bytes (acfg, (guint8*)acfg->blob.data, acfg->blob.index);
7091 emit_dwarf_info (MonoAotCompile *acfg)
7093 #ifdef EMIT_DWARF_INFO
7095 char symbol [128], symbol2 [128];
7097 /* DIEs for methods */
7098 for (i = 0; i < acfg->nmethods; ++i) {
7099 MonoCompile *cfg = acfg->cfgs [i];
7104 // FIXME: LLVM doesn't define .Lme_...
7105 if (cfg->compile_llvm)
7108 sprintf (symbol, "%s", cfg->asm_symbol);
7109 sprintf (symbol2, "%sme_%x", acfg->temp_prefix, i);
7111 mono_dwarf_writer_emit_method (acfg->dwarf, cfg, cfg->method, 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->method, mono_domain_get ()));
7117 collect_methods (MonoAotCompile *acfg)
7120 MonoImage *image = acfg->image;
7122 /* Collect methods */
7123 for (i = 0; i < image->tables [MONO_TABLE_METHOD].rows; ++i) {
7125 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
7127 method = mono_get_method (acfg->image, token, NULL);
7130 printf ("Failed to load method 0x%x from '%s'.\n", token, image->name);
7134 /* Load all methods eagerly to skip the slower lazy loading code */
7135 mono_class_setup_methods (method->klass);
7137 if (acfg->aot_opts.full_aot && method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
7138 /* Compile the wrapper instead */
7139 /* We do this here instead of add_wrappers () because it is easy to do it here */
7140 MonoMethod *wrapper = mono_marshal_get_native_wrapper (method, check_for_pending_exc, TRUE);
7144 /* FIXME: Some mscorlib methods don't have debug info */
7146 if (acfg->aot_opts.soft_debug && !method->wrapper_type) {
7147 if (!((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
7148 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
7149 (method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
7150 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))) {
7151 if (!mono_debug_lookup_method (method)) {
7152 fprintf (stderr, "Method %s has no debug info, probably the .mdb file for the assembly is missing.\n", mono_method_full_name (method, TRUE));
7159 /* Since we add the normal methods first, their index will be equal to their zero based token index */
7160 add_method_with_index (acfg, method, i, FALSE);
7161 acfg->method_index ++;
7164 add_generic_instances (acfg);
7166 if (acfg->aot_opts.full_aot)
7167 add_wrappers (acfg);
7171 compile_methods (MonoAotCompile *acfg)
7175 if (acfg->aot_opts.nthreads > 0) {
7180 gpointer *user_data;
7181 MonoMethod **methods;
7183 methods_len = acfg->methods->len;
7185 len = acfg->methods->len / acfg->aot_opts.nthreads;
7188 * Partition the list of methods into fragments, and hand it to threads to
7191 threads = g_ptr_array_new ();
7192 /* Make a copy since acfg->methods is modified by compile_method () */
7193 methods = g_new0 (MonoMethod*, methods_len);
7194 //memcpy (methods, g_ptr_array_index (acfg->methods, 0), sizeof (MonoMethod*) * methods_len);
7195 for (i = 0; i < methods_len; ++i)
7196 methods [i] = g_ptr_array_index (acfg->methods, i);
7198 while (i < methods_len) {
7199 frag = g_ptr_array_new ();
7200 for (j = 0; j < len; ++j) {
7201 if (i < methods_len) {
7202 g_ptr_array_add (frag, methods [i]);
7207 user_data = g_new0 (gpointer, 3);
7208 user_data [0] = mono_domain_get ();
7209 user_data [1] = acfg;
7210 user_data [2] = frag;
7212 handle = mono_create_thread (NULL, 0, (gpointer)compile_thread_main, user_data, 0, NULL);
7213 g_ptr_array_add (threads, handle);
7217 for (i = 0; i < threads->len; ++i) {
7218 WaitForSingleObjectEx (g_ptr_array_index (threads, i), INFINITE, FALSE);
7224 /* Compile methods added by compile_method () or all methods if nthreads == 0 */
7225 for (i = methods_len; i < acfg->methods->len; ++i) {
7226 /* This can new methods to acfg->methods */
7227 compile_method (acfg, g_ptr_array_index (acfg->methods, i));
7232 compile_asm (MonoAotCompile *acfg)
7234 char *command, *objfile;
7235 char *outfile_name, *tmp_outfile_name;
7236 const char *tool_prefix = acfg->aot_opts.tool_prefix ? acfg->aot_opts.tool_prefix : "";
7238 #if defined(TARGET_AMD64)
7239 #define AS_OPTIONS "--64"
7240 #elif defined(TARGET_POWERPC64)
7241 #define AS_OPTIONS "-a64 -mppc64"
7242 #define LD_OPTIONS "-m elf64ppc"
7243 #elif defined(sparc) && SIZEOF_VOID_P == 8
7244 #define AS_OPTIONS "-xarch=v9"
7245 #elif defined(TARGET_X86) && defined(__APPLE__) && !defined(__native_client_codegen__)
7246 #define AS_OPTIONS "-arch i386 -W"
7248 #define AS_OPTIONS ""
7251 #ifdef __native_client_codegen__
7252 #if defined(TARGET_AMD64)
7253 #define AS_NAME "nacl64-as"
7255 #define AS_NAME "nacl-as"
7258 #define AS_NAME "as"
7262 #define LD_OPTIONS ""
7265 #define EH_LD_OPTIONS ""
7267 if (acfg->aot_opts.asm_only) {
7268 printf ("Output file: '%s'.\n", acfg->tmpfname);
7269 if (acfg->aot_opts.static_link)
7270 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
7274 if (acfg->aot_opts.static_link) {
7275 if (acfg->aot_opts.outfile)
7276 objfile = g_strdup_printf ("%s", acfg->aot_opts.outfile);
7278 objfile = g_strdup_printf ("%s.o", acfg->image->name);
7280 objfile = g_strdup_printf ("%s.o", acfg->tmpfname);
7282 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);
7283 printf ("Executing the native assembler: %s\n", command);
7284 if (system (command) != 0) {
7292 if (acfg->aot_opts.static_link) {
7293 printf ("Output file: '%s'.\n", objfile);
7294 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
7299 if (acfg->aot_opts.outfile)
7300 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
7302 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
7304 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
7307 command = g_strdup_printf ("ld -shared -G -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
7308 #elif defined(__ppc__) && defined(__APPLE__)
7309 command = g_strdup_printf ("gcc -dynamiclib -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
7310 #elif defined(HOST_WIN32)
7311 command = g_strdup_printf ("gcc -shared --dll -mno-cygwin -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
7312 #elif defined(TARGET_X86) && defined(__APPLE__) && !defined(__native_client_codegen__)
7313 command = g_strdup_printf ("gcc -m32 -dynamiclib -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
7315 command = g_strdup_printf ("%sld %s %s -shared -o %s %s.o", tool_prefix, EH_LD_OPTIONS, LD_OPTIONS, tmp_outfile_name, acfg->tmpfname);
7317 printf ("Executing the native linker: %s\n", command);
7318 if (system (command) != 0) {
7319 g_free (tmp_outfile_name);
7320 g_free (outfile_name);
7328 /*com = g_strdup_printf ("strip --strip-unneeded %s%s", acfg->image->name, SHARED_EXT);
7329 printf ("Stripping the binary: %s\n", com);
7333 #if defined(TARGET_ARM) && !defined(__APPLE__)
7335 * gas generates 'mapping symbols' each time code and data is mixed, which
7336 * happens a lot in emit_and_reloc_code (), so we need to get rid of them.
7338 command = g_strdup_printf ("%sstrip --strip-symbol=\\$a --strip-symbol=\\$d %s", tool_prefix, tmp_outfile_name);
7339 printf ("Stripping the binary: %s\n", command);
7340 if (system (command) != 0) {
7341 g_free (tmp_outfile_name);
7342 g_free (outfile_name);
7349 rename (tmp_outfile_name, outfile_name);
7351 g_free (tmp_outfile_name);
7352 g_free (outfile_name);
7355 if (acfg->aot_opts.save_temps)
7356 printf ("Retained input file.\n");
7358 unlink (acfg->tmpfname);
7363 static MonoAotCompile*
7364 acfg_create (MonoAssembly *ass, guint32 opts)
7366 MonoImage *image = ass->image;
7367 MonoAotCompile *acfg;
7370 acfg = g_new0 (MonoAotCompile, 1);
7371 acfg->methods = g_ptr_array_new ();
7372 acfg->method_indexes = g_hash_table_new (NULL, NULL);
7373 acfg->method_depth = g_hash_table_new (NULL, NULL);
7374 acfg->plt_offset_to_entry = g_hash_table_new (NULL, NULL);
7375 acfg->patch_to_plt_entry = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
7376 acfg->patch_to_got_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
7377 acfg->patch_to_got_offset_by_type = g_new0 (GHashTable*, MONO_PATCH_INFO_NUM);
7378 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i)
7379 acfg->patch_to_got_offset_by_type [i] = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
7380 acfg->got_patches = g_ptr_array_new ();
7381 acfg->method_to_cfg = g_hash_table_new (NULL, NULL);
7382 acfg->token_info_hash = g_hash_table_new_full (NULL, NULL, NULL, g_free);
7383 acfg->method_to_pinvoke_import = g_hash_table_new_full (NULL, NULL, NULL, g_free);
7384 acfg->image_hash = g_hash_table_new (NULL, NULL);
7385 acfg->image_table = g_ptr_array_new ();
7386 acfg->globals = g_ptr_array_new ();
7387 acfg->image = image;
7389 /* TODO: Write out set of SIMD instructions used, rather than just those available */
7390 acfg->simd_opts = mono_arch_cpu_enumerate_simd_versions ();
7391 acfg->mempool = mono_mempool_new ();
7392 acfg->extra_methods = g_ptr_array_new ();
7393 acfg->unwind_info_offsets = g_hash_table_new (NULL, NULL);
7394 acfg->unwind_ops = g_ptr_array_new ();
7395 acfg->method_label_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
7396 acfg->method_order = g_ptr_array_new ();
7397 acfg->export_names = g_hash_table_new (NULL, NULL);
7398 acfg->klass_blob_hash = g_hash_table_new (NULL, NULL);
7399 acfg->method_blob_hash = g_hash_table_new (NULL, NULL);
7400 acfg->plt_entry_debug_sym_cache = g_hash_table_new (g_str_hash, g_str_equal);
7401 InitializeCriticalSection (&acfg->mutex);
7407 acfg_free (MonoAotCompile *acfg)
7411 img_writer_destroy (acfg->w);
7412 for (i = 0; i < acfg->nmethods; ++i)
7414 g_free (acfg->cfgs [i]);
7415 g_free (acfg->cfgs);
7416 g_free (acfg->static_linking_symbol);
7417 g_free (acfg->got_symbol);
7418 g_free (acfg->plt_symbol);
7419 g_ptr_array_free (acfg->methods, TRUE);
7420 g_ptr_array_free (acfg->got_patches, TRUE);
7421 g_ptr_array_free (acfg->image_table, TRUE);
7422 g_ptr_array_free (acfg->globals, TRUE);
7423 g_ptr_array_free (acfg->unwind_ops, TRUE);
7424 g_hash_table_destroy (acfg->method_indexes);
7425 g_hash_table_destroy (acfg->method_depth);
7426 g_hash_table_destroy (acfg->plt_offset_to_entry);
7427 g_hash_table_destroy (acfg->patch_to_plt_entry);
7428 g_hash_table_destroy (acfg->patch_to_got_offset);
7429 g_hash_table_destroy (acfg->method_to_cfg);
7430 g_hash_table_destroy (acfg->token_info_hash);
7431 g_hash_table_destroy (acfg->method_to_pinvoke_import);
7432 g_hash_table_destroy (acfg->image_hash);
7433 g_hash_table_destroy (acfg->unwind_info_offsets);
7434 g_hash_table_destroy (acfg->method_label_hash);
7435 g_hash_table_destroy (acfg->export_names);
7436 g_hash_table_destroy (acfg->plt_entry_debug_sym_cache);
7437 g_hash_table_destroy (acfg->klass_blob_hash);
7438 g_hash_table_destroy (acfg->method_blob_hash);
7439 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i)
7440 g_hash_table_destroy (acfg->patch_to_got_offset_by_type [i]);
7441 g_free (acfg->patch_to_got_offset_by_type);
7442 mono_mempool_destroy (acfg->mempool);
7447 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
7449 MonoImage *image = ass->image;
7451 MonoAotCompile *acfg;
7452 char *outfile_name, *tmp_outfile_name, *p;
7456 printf ("Mono Ahead of Time compiler - compiling assembly %s\n", image->name);
7458 acfg = acfg_create (ass, opts);
7460 memset (&acfg->aot_opts, 0, sizeof (acfg->aot_opts));
7461 acfg->aot_opts.write_symbols = TRUE;
7462 acfg->aot_opts.ntrampolines = 1024;
7463 acfg->aot_opts.nrgctx_trampolines = 1024;
7464 acfg->aot_opts.nimt_trampolines = 128;
7465 acfg->aot_opts.llvm_path = g_strdup ("");
7467 mono_aot_parse_options (aot_options, &acfg->aot_opts);
7469 if (acfg->aot_opts.static_link)
7470 acfg->aot_opts.autoreg = TRUE;
7472 //acfg->aot_opts.print_skipped_methods = TRUE;
7474 #ifndef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
7475 if (acfg->aot_opts.full_aot) {
7476 printf ("--aot=full is not supported on this platform.\n");
7481 if (acfg->aot_opts.direct_pinvoke && !acfg->aot_opts.static_link) {
7482 fprintf (stderr, "The 'direct-pinvoke' AOT option also requires the 'static' AOT option.\n");
7486 if (acfg->aot_opts.static_link)
7487 acfg->aot_opts.asm_writer = TRUE;
7489 if (acfg->aot_opts.soft_debug) {
7490 MonoDebugOptions *opt = mini_get_debug_options ();
7492 opt->mdb_optimizations = TRUE;
7493 opt->gen_seq_points = TRUE;
7495 if (mono_debug_format == MONO_DEBUG_FORMAT_NONE) {
7496 fprintf (stderr, "The soft-debug AOT option requires the --debug option.\n");
7499 acfg->flags |= MONO_AOT_FILE_FLAG_DEBUG;
7502 if (mono_use_llvm) {
7504 acfg->aot_opts.asm_writer = TRUE;
7505 acfg->flags |= MONO_AOT_FILE_FLAG_WITH_LLVM;
7507 if (acfg->aot_opts.soft_debug) {
7508 fprintf (stderr, "The 'soft-debug' option is not supported when compiling with LLVM.\n");
7513 if (acfg->aot_opts.full_aot)
7514 acfg->flags |= MONO_AOT_FILE_FLAG_FULL_AOT;
7516 load_profile_files (acfg);
7518 acfg->num_trampolines [MONO_AOT_TRAMP_SPECIFIC] = acfg->aot_opts.full_aot ? acfg->aot_opts.ntrampolines : 0;
7519 #ifdef MONO_ARCH_GSHARED_SUPPORTED
7520 acfg->num_trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = acfg->aot_opts.full_aot ? acfg->aot_opts.nrgctx_trampolines : 0;
7522 acfg->num_trampolines [MONO_AOT_TRAMP_IMT_THUNK] = acfg->aot_opts.full_aot ? acfg->aot_opts.nimt_trampolines : 0;
7524 acfg->temp_prefix = img_writer_get_temp_label_prefix (NULL);
7528 acfg->got_symbol_base = g_strdup_printf ("mono_aot_%s_got", acfg->image->assembly->aname.name);
7529 acfg->plt_symbol = g_strdup_printf ("%smono_aot_%s_plt", acfg->llvm_label_prefix, acfg->image->assembly->aname.name);
7530 acfg->assembly_name_sym = g_strdup (acfg->image->assembly->aname.name);
7532 /* Get rid of characters which cannot occur in symbols */
7533 for (p = acfg->got_symbol_base; *p; ++p) {
7534 if (!(isalnum (*p) || *p == '_'))
7537 for (p = acfg->plt_symbol; *p; ++p) {
7538 if (!(isalnum (*p) || *p == '_'))
7541 for (p = acfg->assembly_name_sym; *p; ++p) {
7542 if (!(isalnum (*p) || *p == '_'))
7546 acfg->method_index = 1;
7548 collect_methods (acfg);
7550 acfg->cfgs_size = acfg->methods->len + 32;
7551 acfg->cfgs = g_new0 (MonoCompile*, acfg->cfgs_size);
7553 /* PLT offset 0 is reserved for the PLT trampoline */
7554 acfg->plt_offset = 1;
7559 mono_llvm_create_aot_module (acfg->got_symbol_base);
7563 /* GOT offset 0 is reserved for the address of the current assembly */
7567 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
7568 ji->type = MONO_PATCH_INFO_IMAGE;
7569 ji->data.image = acfg->image;
7571 get_got_offset (acfg, ji);
7573 /* Slot 1 is reserved for the mscorlib got addr */
7574 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
7575 ji->type = MONO_PATCH_INFO_MSCORLIB_GOT_ADDR;
7576 get_got_offset (acfg, ji);
7578 /* This is very common */
7579 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
7580 ji->type = MONO_PATCH_INFO_GC_CARD_TABLE_ADDR;
7581 get_got_offset (acfg, ji);
7586 compile_methods (acfg);
7590 acfg->stats.jit_time = TV_ELAPSED (atv, btv);
7596 if (acfg->aot_opts.asm_only) {
7597 if (acfg->aot_opts.outfile)
7598 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
7600 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
7602 acfg->tmpfname = g_strdup ("temp.s");
7605 emit_llvm_file (acfg);
7609 if (!acfg->aot_opts.asm_only && !acfg->aot_opts.asm_writer && bin_writer_supported ()) {
7610 if (acfg->aot_opts.outfile)
7611 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
7613 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
7616 * Can't use g_file_open_tmp () as it will be deleted at exit, and
7617 * it might be in another file system so the rename () won't work.
7619 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
7621 acfg->fp = fopen (tmp_outfile_name, "w");
7623 printf ("Unable to create temporary file '%s': %s\n", tmp_outfile_name, strerror (errno));
7627 acfg->w = img_writer_create (acfg->fp, TRUE);
7628 acfg->use_bin_writer = TRUE;
7631 /* Append to the .s file created by llvm */
7632 /* FIXME: Use multiple files instead */
7633 acfg->fp = fopen (acfg->tmpfname, "a+");
7635 if (acfg->aot_opts.asm_only) {
7636 if (acfg->aot_opts.outfile)
7637 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
7639 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
7640 acfg->fp = fopen (acfg->tmpfname, "w+");
7642 int i = g_file_open_tmp ("mono_aot_XXXXXX", &acfg->tmpfname, NULL);
7643 acfg->fp = fdopen (i, "w+");
7645 if (acfg->fp == 0) {
7646 fprintf (stderr, "Unable to open file '%s': %s\n", acfg->tmpfname, strerror (errno));
7650 acfg->w = img_writer_create (acfg->fp, FALSE);
7652 tmp_outfile_name = NULL;
7653 outfile_name = NULL;
7656 acfg->got_symbol = g_strdup_printf ("%s%s", acfg->llvm_label_prefix, acfg->got_symbol_base);
7658 /* Compute symbols for methods */
7659 for (i = 0; i < acfg->nmethods; ++i) {
7660 if (acfg->cfgs [i]) {
7661 MonoCompile *cfg = acfg->cfgs [i];
7662 int method_index = get_method_index (acfg, cfg->orig_method);
7664 if (COMPILE_LLVM (cfg))
7665 cfg->asm_symbol = g_strdup_printf ("%s%s", acfg->llvm_label_prefix, cfg->llvm_method_name);
7667 cfg->asm_symbol = g_strdup_printf ("%s%sm_%x", acfg->temp_prefix, acfg->llvm_label_prefix, method_index);
7671 if (!acfg->aot_opts.nodebug)
7672 acfg->dwarf = mono_dwarf_writer_create (acfg->w, NULL, 0, FALSE);
7674 img_writer_emit_start (acfg->w);
7677 mono_dwarf_writer_emit_base_info (acfg->dwarf, mono_unwind_get_cie_program ());
7679 if (acfg->thumb_mixed) {
7682 * This global symbol marks the end of THUMB code, and the beginning of ARM
7683 * code generated by our JIT.
7685 sprintf (symbol, "thumb_end");
7686 emit_section_change (acfg, ".text", 0);
7687 emit_label (acfg, symbol);
7688 emit_zero_bytes (acfg, 16);
7690 fprintf (acfg->fp, ".arm\n");
7697 emit_extra_methods (acfg);
7699 emit_trampolines (acfg);
7701 emit_class_name_table (acfg);
7703 emit_got_info (acfg);
7705 emit_exception_info (acfg);
7707 emit_unwind_info (acfg);
7709 emit_class_info (acfg);
7713 emit_image_table (acfg);
7717 emit_file_info (acfg);
7721 emit_globals (acfg);
7723 emit_autoreg (acfg);
7726 emit_dwarf_info (acfg);
7727 mono_dwarf_writer_close (acfg->dwarf);
7730 emit_mem_end (acfg);
7732 if (acfg->need_pt_gnu_stack) {
7733 /* This is required so the .so doesn't have an executable stack */
7734 /* The bin writer already emits this */
7735 if (!acfg->use_bin_writer)
7736 fprintf (acfg->fp, "\n.section .note.GNU-stack,\"\",@progbits\n");
7741 acfg->stats.gen_time = TV_ELAPSED (atv, btv);
7744 g_assert (acfg->got_offset <= acfg->final_got_size);
7746 printf ("Code: %d Info: %d Ex Info: %d Unwind Info: %d Class Info: %d PLT: %d GOT Info: %d GOT: %d Offsets: %d\n", acfg->stats.code_size, acfg->stats.info_size, acfg->stats.ex_info_size, acfg->stats.unwind_info_size, acfg->stats.class_info_size, acfg->plt_offset, acfg->stats.got_info_size, (int)(acfg->got_offset * sizeof (gpointer)), acfg->stats.offsets_size);
7749 res = img_writer_emit_writeout (acfg->w);
7754 if (acfg->use_bin_writer) {
7755 int err = rename (tmp_outfile_name, outfile_name);
7758 printf ("Unable to rename '%s' to '%s': %s\n", tmp_outfile_name, outfile_name, strerror (errno));
7762 res = compile_asm (acfg);
7769 acfg->stats.link_time = TV_ELAPSED (atv, btv);
7771 printf ("Compiled %d out of %d methods (%d%%)\n", acfg->stats.ccount, acfg->stats.mcount, acfg->stats.mcount ? (acfg->stats.ccount * 100) / acfg->stats.mcount : 100);
7772 if (acfg->stats.genericcount)
7773 printf ("%d methods are generic (%d%%)\n", acfg->stats.genericcount, acfg->stats.mcount ? (acfg->stats.genericcount * 100) / acfg->stats.mcount : 100);
7774 if (acfg->stats.abscount)
7775 printf ("%d methods contain absolute addresses (%d%%)\n", acfg->stats.abscount, acfg->stats.mcount ? (acfg->stats.abscount * 100) / acfg->stats.mcount : 100);
7776 if (acfg->stats.lmfcount)
7777 printf ("%d methods contain lmf pointers (%d%%)\n", acfg->stats.lmfcount, acfg->stats.mcount ? (acfg->stats.lmfcount * 100) / acfg->stats.mcount : 100);
7778 if (acfg->stats.ocount)
7779 printf ("%d methods have other problems (%d%%)\n", acfg->stats.ocount, acfg->stats.mcount ? (acfg->stats.ocount * 100) / acfg->stats.mcount : 100);
7781 printf ("Methods compiled with LLVM: %d (%d%%)\n", acfg->stats.llvm_count, acfg->stats.mcount ? (acfg->stats.llvm_count * 100) / acfg->stats.mcount : 100);
7782 printf ("Methods without GOT slots: %d (%d%%)\n", acfg->stats.methods_without_got_slots, acfg->stats.mcount ? (acfg->stats.methods_without_got_slots * 100) / acfg->stats.mcount : 100);
7783 printf ("Direct calls: %d (%d%%)\n", acfg->stats.direct_calls, acfg->stats.all_calls ? (acfg->stats.direct_calls * 100) / acfg->stats.all_calls : 100);
7785 if (acfg->aot_opts.stats) {
7788 printf ("GOT slot distribution:\n");
7789 for (i = 0; i < MONO_PATCH_INFO_NONE; ++i)
7790 if (acfg->stats.got_slot_types [i])
7791 printf ("\t%s: %d (%d)\n", get_patch_name (i), acfg->stats.got_slot_types [i], acfg->stats.got_slot_info_sizes [i]);
7794 printf ("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);
7806 mono_aot_readonly_field_override (MonoClassField *field)
7812 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)