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__)
1333 guint8 *labels [16];
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);
1373 mono_amd64_patch (labels [1], code);
1374 /* Load fail tramp */
1375 amd64_alu_reg_imm (code, X86_ADD, MONO_ARCH_IMT_SCRATCH_REG, sizeof (gpointer));
1376 /* Check if there is a fail tramp */
1377 amd64_alu_membase_imm (code, X86_CMP, MONO_ARCH_IMT_SCRATCH_REG, 0, 0);
1379 amd64_branch8 (code, X86_CC_Z, 0, FALSE);
1380 /* Jump to fail tramp */
1381 amd64_jump_membase (code, MONO_ARCH_IMT_SCRATCH_REG, 0);
1384 mono_amd64_patch (labels [3], code);
1385 x86_breakpoint (code);
1387 /* mov <OFFSET>(%rip), MONO_ARCH_IMT_SCRATCH_REG */
1388 amd64_emit_rex (mov_buf_ptr, sizeof(gpointer), MONO_ARCH_IMT_SCRATCH_REG, 0, AMD64_RIP);
1389 *(mov_buf_ptr)++ = (unsigned char)0x8b; /* mov opcode */
1390 x86_address_byte (mov_buf_ptr, 0, MONO_ARCH_IMT_SCRATCH_REG & 0x7, 5);
1391 emit_bytes (acfg, mov_buf, mov_buf_ptr - mov_buf);
1392 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
1394 emit_bytes (acfg, buf, code - buf);
1396 *tramp_size = code - buf + kSizeOfMove;
1397 #if defined(__native_client_codegen__)
1398 /* The tramp will be padded to the next kNaClAlignment bundle. */
1399 *tramp_size = ALIGN_TO ((*tramp_size), kNaClAlignment);
1402 #if defined(__default_codegen__)
1404 #elif defined(__native_client_codegen__)
1408 #elif defined(TARGET_X86)
1410 #ifdef __native_client_codegen__
1413 guint8 *labels [16];
1415 #if defined(__default_codegen__)
1416 code = buf = g_malloc (256);
1417 #elif defined(__native_client_codegen__)
1418 buf_alloc = g_malloc (256 + kNaClAlignment);
1419 code = buf = ((guint)buf_alloc + kNaClAlignment) & ~kNaClAlignmentMask;
1422 /* Allocate a temporary stack slot */
1423 x86_push_reg (code, X86_EAX);
1425 x86_push_reg (code, X86_EAX);
1427 /* Load mscorlib got address */
1428 x86_mov_reg_membase (code, X86_EAX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4);
1430 x86_mov_reg_membase (code, X86_EAX, X86_EAX, offset * sizeof (gpointer), 4);
1433 x86_alu_membase_imm (code, X86_CMP, X86_EAX, 0, 0);
1435 x86_branch8 (code, X86_CC_Z, FALSE, 0);
1438 x86_alu_membase_reg (code, X86_CMP, X86_EAX, 0, MONO_ARCH_IMT_REG);
1440 x86_branch8 (code, X86_CC_Z, FALSE, 0);
1443 x86_alu_reg_imm (code, X86_ADD, X86_EAX, 2 * sizeof (gpointer));
1444 x86_jump_code (code, labels [0]);
1447 mono_x86_patch (labels [2], code);
1448 x86_mov_reg_membase (code, X86_EAX, X86_EAX, sizeof (gpointer), 4);
1449 x86_mov_reg_membase (code, X86_EAX, X86_EAX, 0, 4);
1450 /* Save the target address to the temporary stack location */
1451 x86_mov_membase_reg (code, X86_ESP, 4, X86_EAX, 4);
1453 x86_pop_reg (code, X86_EAX);
1454 /* Jump to the target address */
1458 mono_x86_patch (labels [1], code);
1459 /* Load fail tramp */
1460 x86_mov_reg_membase (code, X86_EAX, X86_EAX, sizeof (gpointer), 4);
1461 x86_alu_membase_imm (code, X86_CMP, X86_EAX, 0, 0);
1463 x86_branch8 (code, X86_CC_Z, FALSE, 0);
1464 /* Jump to fail tramp */
1465 x86_mov_membase_reg (code, X86_ESP, 4, X86_EAX, 4);
1466 x86_pop_reg (code, X86_EAX);
1470 mono_x86_patch (labels [3], code);
1471 x86_breakpoint (code);
1473 #ifdef __native_client_codegen__
1475 /* emit nops to next 32 byte alignment */
1476 int a = (~kNaClAlignmentMask) & ((code - buf) + kNaClAlignment - 1);
1477 while (code < (buf + a)) x86_nop(code);
1480 emit_bytes (acfg, buf, code - buf);
1482 *tramp_size = code - buf;
1484 #if defined(__default_codegen__)
1486 #elif defined(__native_client_codegen__)
1490 #elif defined(TARGET_ARM)
1492 guint8 *code, *code2, *labels [16];
1496 /* The IMT method is in v5 */
1498 /* Need at least two free registers, plus a slot for storing the pc */
1499 ARM_PUSH (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_R2));
1501 /* Load the parameter from the GOT */
1502 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_PC, 0);
1503 ARM_LDR_REG_REG (code, ARMREG_R0, ARMREG_PC, ARMREG_R0);
1506 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_R0, 0);
1507 ARM_CMP_REG_REG (code, ARMREG_R1, ARMREG_V5);
1509 ARM_B_COND (code, ARMCOND_EQ, 0);
1511 /* End-of-loop check */
1512 ARM_CMP_REG_IMM (code, ARMREG_R1, 0, 0);
1514 ARM_B_COND (code, ARMCOND_EQ, 0);
1517 ARM_ADD_REG_IMM8 (code, ARMREG_R0, ARMREG_R0, sizeof (gpointer) * 2);
1520 arm_patch (labels [4], labels [1]);
1523 arm_patch (labels [2], code);
1524 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4);
1525 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 0);
1526 /* Save it to the third stack slot */
1527 ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8);
1528 /* Restore the registers and branch */
1529 ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC));
1532 arm_patch (labels [3], code);
1533 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4);
1534 ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8);
1535 ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC));
1539 ARM_LDR_IMM (code2, ARMREG_R0, ARMREG_PC, (code - (labels [0] + 8)));
1541 emit_bytes (acfg, buf, code - buf);
1542 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) + (code - (labels [0] + 8)) - 4);
1544 *tramp_size = code - buf + 4;
1545 #elif defined(TARGET_POWERPC)
1547 guint8 *code, *labels [16];
1551 /* Load the mscorlib got address */
1552 ppc_ldptr (code, ppc_r11, sizeof (gpointer), ppc_r30);
1553 /* Load the parameter from the GOT */
1554 ppc_load (code, ppc_r0, offset * sizeof (gpointer));
1555 ppc_ldptr_indexed (code, ppc_r11, ppc_r11, ppc_r0);
1557 /* Load and check key */
1559 ppc_ldptr (code, ppc_r0, 0, ppc_r11);
1560 ppc_cmp (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, MONO_ARCH_IMT_REG);
1562 ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0);
1564 /* End-of-loop check */
1565 ppc_cmpi (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, 0);
1567 ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0);
1570 ppc_addi (code, ppc_r11, ppc_r11, 2 * sizeof (gpointer));
1573 mono_ppc_patch (labels [4], labels [1]);
1576 mono_ppc_patch (labels [2], code);
1577 ppc_ldptr (code, ppc_r11, sizeof (gpointer), ppc_r11);
1578 /* r11 now contains the value of the vtable slot */
1579 /* this is not a function descriptor on ppc64 */
1580 ppc_ldptr (code, ppc_r11, 0, ppc_r11);
1581 ppc_mtctr (code, ppc_r11);
1582 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
1585 mono_ppc_patch (labels [3], code);
1589 *tramp_size = code - buf;
1591 emit_bytes (acfg, buf, code - buf);
1593 g_assert_not_reached ();
1598 arch_emit_autoreg (MonoAotCompile *acfg, char *symbol)
1600 #if defined(TARGET_POWERPC) && defined(__mono_ilp32__)
1601 /* Based on code generated by gcc */
1602 img_writer_emit_unset_mode (acfg->w);
1605 #if defined(_MSC_VER) || defined(MONO_CROSS_COMPILE)
1606 ".section .ctors,\"aw\",@progbits\n"
1610 ".section .opd,\"aw\"\n"
1613 ".long .%s,.TOC.@tocbase32\n"
1616 ".type .%s,@function\n"
1618 ".%s:\n", symbol, symbol, symbol, symbol, symbol, symbol, symbol, symbol);
1620 ".section .ctors,\"aw\",@progbits\n"
1624 ".section .opd,\"aw\"\n"
1627 ".long .%1$s,.TOC.@tocbase32\n"
1628 ".size %1$s,.-%1$s\n"
1630 ".type .%1$s,@function\n"
1632 ".%1$s:\n", symbol);
1643 "lis 3, .Lglobals@h\n"
1644 "ori 3, 3, .Lglobals@l\n"
1645 "bl .mono_aot_register_module\n"
1653 #if defined(_MSC_VER) || defined(MONO_CROSS_COMPILE)
1655 ".size .%s,.-.%s\n", symbol, symbol);
1658 ".size .%1$s,.-.%1$s\n", symbol);
1664 /* END OF ARCH SPECIFIC CODE */
1667 mono_get_field_token (MonoClassField *field)
1669 MonoClass *klass = field->parent;
1672 for (i = 0; i < klass->field.count; ++i) {
1673 if (field == &klass->fields [i])
1674 return MONO_TOKEN_FIELD_DEF | (klass->field.first + 1 + i);
1677 g_assert_not_reached ();
1682 encode_value (gint32 value, guint8 *buf, guint8 **endbuf)
1686 //printf ("ENCODE: %d 0x%x.\n", value, value);
1689 * Same encoding as the one used in the metadata, extended to handle values
1690 * greater than 0x1fffffff.
1692 if ((value >= 0) && (value <= 127))
1694 else if ((value >= 0) && (value <= 16383)) {
1695 p [0] = 0x80 | (value >> 8);
1696 p [1] = value & 0xff;
1698 } else if ((value >= 0) && (value <= 0x1fffffff)) {
1699 p [0] = (value >> 24) | 0xc0;
1700 p [1] = (value >> 16) & 0xff;
1701 p [2] = (value >> 8) & 0xff;
1702 p [3] = value & 0xff;
1707 p [1] = (value >> 24) & 0xff;
1708 p [2] = (value >> 16) & 0xff;
1709 p [3] = (value >> 8) & 0xff;
1710 p [4] = value & 0xff;
1718 stream_init (MonoDynamicStream *sh)
1721 sh->alloc_size = 4096;
1722 sh->data = g_malloc (4096);
1724 /* So offsets are > 0 */
1730 make_room_in_stream (MonoDynamicStream *stream, int size)
1732 if (size <= stream->alloc_size)
1735 while (stream->alloc_size <= size) {
1736 if (stream->alloc_size < 4096)
1737 stream->alloc_size = 4096;
1739 stream->alloc_size *= 2;
1742 stream->data = g_realloc (stream->data, stream->alloc_size);
1746 add_stream_data (MonoDynamicStream *stream, const char *data, guint32 len)
1750 make_room_in_stream (stream, stream->index + len);
1751 memcpy (stream->data + stream->index, data, len);
1752 idx = stream->index;
1753 stream->index += len;
1760 * Add data to the binary blob inside the aot image. Returns the offset inside the
1761 * blob where the data was stored.
1764 add_to_blob (MonoAotCompile *acfg, const guint8 *data, guint32 data_len)
1766 if (acfg->blob.alloc_size == 0)
1767 stream_init (&acfg->blob);
1769 return add_stream_data (&acfg->blob, (char*)data, data_len);
1773 add_to_blob_aligned (MonoAotCompile *acfg, const guint8 *data, guint32 data_len, guint32 align)
1778 if (acfg->blob.alloc_size == 0)
1779 stream_init (&acfg->blob);
1781 count = acfg->blob.index % align;
1783 /* we assume the stream data will be aligned */
1785 add_stream_data (&acfg->blob, buf, 4 - count);
1787 return add_stream_data (&acfg->blob, (char*)data, data_len);
1791 * emit_offset_table:
1793 * Emit a table of increasing offsets in a compact form using differential encoding.
1794 * There is an index entry for each GROUP_SIZE number of entries. The greater the
1795 * group size, the more compact the table becomes, but the slower it becomes to compute
1796 * a given entry. Returns the size of the table.
1799 emit_offset_table (MonoAotCompile *acfg, int noffsets, int group_size, gint32 *offsets)
1801 gint32 current_offset;
1802 int i, buf_size, ngroups, index_entry_size;
1804 guint32 *index_offsets;
1806 ngroups = (noffsets + (group_size - 1)) / group_size;
1808 index_offsets = g_new0 (guint32, ngroups);
1810 buf_size = noffsets * 4;
1811 p = buf = g_malloc0 (buf_size);
1814 for (i = 0; i < noffsets; ++i) {
1815 //printf ("D: %d -> %d\n", i, offsets [i]);
1816 if ((i % group_size) == 0) {
1817 index_offsets [i / group_size] = p - buf;
1818 /* Emit the full value for these entries */
1819 encode_value (offsets [i], p, &p);
1821 /* The offsets are allowed to be non-increasing */
1822 //g_assert (offsets [i] >= current_offset);
1823 encode_value (offsets [i] - current_offset, p, &p);
1825 current_offset = offsets [i];
1828 if (ngroups && index_offsets [ngroups - 1] < 65000)
1829 index_entry_size = 2;
1831 index_entry_size = 4;
1833 /* Emit the header */
1834 emit_int32 (acfg, noffsets);
1835 emit_int32 (acfg, group_size);
1836 emit_int32 (acfg, ngroups);
1837 emit_int32 (acfg, index_entry_size);
1839 /* Emit the index */
1840 for (i = 0; i < ngroups; ++i) {
1841 if (index_entry_size == 2)
1842 emit_int16 (acfg, index_offsets [i]);
1844 emit_int32 (acfg, index_offsets [i]);
1848 emit_bytes (acfg, buf, p - buf);
1850 return (int)(p - buf) + (ngroups * 4);
1854 get_image_index (MonoAotCompile *cfg, MonoImage *image)
1858 index = GPOINTER_TO_UINT (g_hash_table_lookup (cfg->image_hash, image));
1862 index = g_hash_table_size (cfg->image_hash);
1863 g_hash_table_insert (cfg->image_hash, image, GUINT_TO_POINTER (index + 1));
1864 g_ptr_array_add (cfg->image_table, image);
1870 find_typespec_for_class (MonoAotCompile *acfg, MonoClass *klass)
1873 int len = acfg->image->tables [MONO_TABLE_TYPESPEC].rows;
1875 /* FIXME: Search referenced images as well */
1876 if (!acfg->typespec_classes) {
1877 acfg->typespec_classes = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoClass*) * len);
1878 for (i = 0; i < len; ++i) {
1879 acfg->typespec_classes [i] = mono_class_get_full (acfg->image, MONO_TOKEN_TYPE_SPEC | (i + 1), NULL);
1882 for (i = 0; i < len; ++i) {
1883 if (acfg->typespec_classes [i] == klass)
1888 return MONO_TOKEN_TYPE_SPEC | (i + 1);
1894 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf);
1897 encode_klass_ref (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf);
1900 encode_ginst (MonoAotCompile *acfg, MonoGenericInst *inst, guint8 *buf, guint8 **endbuf);
1903 encode_type (MonoAotCompile *acfg, MonoType *t, guint8 *buf, guint8 **endbuf);
1906 encode_klass_ref_inner (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf)
1911 * The encoding begins with one of the MONO_AOT_TYPEREF values, followed by additional
1915 if (klass->generic_class) {
1917 g_assert (klass->type_token);
1919 /* Find a typespec for a class if possible */
1920 token = find_typespec_for_class (acfg, klass);
1922 encode_value (MONO_AOT_TYPEREF_TYPESPEC_TOKEN, p, &p);
1923 encode_value (token, p, &p);
1925 MonoClass *gclass = klass->generic_class->container_class;
1926 MonoGenericInst *inst = klass->generic_class->context.class_inst;
1927 static int count = 0;
1930 encode_value (MONO_AOT_TYPEREF_GINST, p, &p);
1931 encode_klass_ref (acfg, gclass, p, &p);
1932 encode_ginst (acfg, inst, p, &p);
1936 } else if (klass->type_token) {
1937 int iindex = get_image_index (acfg, klass->image);
1939 g_assert (mono_metadata_token_code (klass->type_token) == MONO_TOKEN_TYPE_DEF);
1941 encode_value (MONO_AOT_TYPEREF_TYPEDEF_INDEX, p, &p);
1942 encode_value (klass->type_token - MONO_TOKEN_TYPE_DEF, p, &p);
1944 encode_value (MONO_AOT_TYPEREF_TYPEDEF_INDEX_IMAGE, p, &p);
1945 encode_value (klass->type_token - MONO_TOKEN_TYPE_DEF, p, &p);
1946 encode_value (get_image_index (acfg, klass->image), p, &p);
1948 } else if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) {
1949 MonoGenericContainer *container = mono_type_get_generic_param_owner (&klass->byval_arg);
1950 g_assert (container);
1952 encode_value (MONO_AOT_TYPEREF_VAR, p, &p);
1953 encode_value (klass->byval_arg.type, p, &p);
1954 encode_value (mono_type_get_generic_param_num (&klass->byval_arg), p, &p);
1956 encode_value (container->is_method, p, &p);
1957 if (container->is_method)
1958 encode_method_ref (acfg, container->owner.method, p, &p);
1960 encode_klass_ref (acfg, container->owner.klass, p, &p);
1961 } else if (klass->byval_arg.type == MONO_TYPE_PTR) {
1962 encode_value (MONO_AOT_TYPEREF_PTR, p, &p);
1963 encode_type (acfg, &klass->byval_arg, p, &p);
1966 g_assert (klass->rank > 0);
1967 encode_value (MONO_AOT_TYPEREF_ARRAY, p, &p);
1968 encode_value (klass->rank, p, &p);
1969 encode_klass_ref (acfg, klass->element_class, p, &p);
1977 * Encode a reference to KLASS. We use our home-grown encoding instead of the
1978 * standard metadata encoding.
1981 encode_klass_ref (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf)
1983 gboolean shared = FALSE;
1986 * The encoding of generic instances is large so emit them only once.
1988 if (klass->generic_class) {
1990 g_assert (klass->type_token);
1992 /* Find a typespec for a class if possible */
1993 token = find_typespec_for_class (acfg, klass);
1996 } else if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) {
2001 guint offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->klass_blob_hash, klass));
2005 buf2 = g_malloc (1024);
2008 encode_klass_ref_inner (acfg, klass, p, &p);
2009 g_assert (p - buf2 < 1024);
2011 offset = add_to_blob (acfg, buf2, p - buf2);
2014 g_hash_table_insert (acfg->klass_blob_hash, klass, GUINT_TO_POINTER (offset + 1));
2020 encode_value (MONO_AOT_TYPEREF_BLOB_INDEX, p, &p);
2021 encode_value (offset, p, &p);
2026 encode_klass_ref_inner (acfg, klass, buf, endbuf);
2030 encode_field_info (MonoAotCompile *cfg, MonoClassField *field, guint8 *buf, guint8 **endbuf)
2032 guint32 token = mono_get_field_token (field);
2035 encode_klass_ref (cfg, field->parent, p, &p);
2036 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_FIELD_DEF);
2037 encode_value (token - MONO_TOKEN_FIELD_DEF, p, &p);
2042 encode_ginst (MonoAotCompile *acfg, MonoGenericInst *inst, guint8 *buf, guint8 **endbuf)
2047 encode_value (inst->type_argc, p, &p);
2048 for (i = 0; i < inst->type_argc; ++i)
2049 encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
2054 encode_generic_context (MonoAotCompile *acfg, MonoGenericContext *context, guint8 *buf, guint8 **endbuf)
2057 MonoGenericInst *inst;
2059 inst = context->class_inst;
2061 g_assert (inst->type_argc);
2062 encode_ginst (acfg, inst, p, &p);
2064 encode_value (0, p, &p);
2066 inst = context->method_inst;
2068 g_assert (inst->type_argc);
2069 encode_ginst (acfg, inst, p, &p);
2071 encode_value (0, p, &p);
2077 encode_type (MonoAotCompile *acfg, MonoType *t, guint8 *buf, guint8 **endbuf)
2081 g_assert (t->num_mods == 0);
2082 /* t->attrs can be ignored */
2083 //g_assert (t->attrs == 0);
2086 *p = MONO_TYPE_PINNED;
2090 *p = MONO_TYPE_BYREF;
2098 case MONO_TYPE_VOID:
2099 case MONO_TYPE_BOOLEAN:
2100 case MONO_TYPE_CHAR:
2113 case MONO_TYPE_STRING:
2114 case MONO_TYPE_OBJECT:
2115 case MONO_TYPE_TYPEDBYREF:
2117 case MONO_TYPE_VALUETYPE:
2118 case MONO_TYPE_CLASS:
2119 encode_klass_ref (acfg, mono_class_from_mono_type (t), p, &p);
2121 case MONO_TYPE_SZARRAY:
2122 encode_klass_ref (acfg, t->data.klass, p, &p);
2125 encode_type (acfg, t->data.type, p, &p);
2127 case MONO_TYPE_GENERICINST: {
2128 MonoClass *gclass = t->data.generic_class->container_class;
2129 MonoGenericInst *inst = t->data.generic_class->context.class_inst;
2131 encode_klass_ref (acfg, gclass, p, &p);
2132 encode_ginst (acfg, inst, p, &p);
2135 case MONO_TYPE_ARRAY: {
2136 MonoArrayType *array = t->data.array;
2139 encode_klass_ref (acfg, array->eklass, p, &p);
2140 encode_value (array->rank, p, &p);
2141 encode_value (array->numsizes, p, &p);
2142 for (i = 0; i < array->numsizes; ++i)
2143 encode_value (array->sizes [i], p, &p);
2144 encode_value (array->numlobounds, p, &p);
2145 for (i = 0; i < array->numlobounds; ++i)
2146 encode_value (array->lobounds [i], p, &p);
2150 g_assert_not_reached ();
2157 encode_signature (MonoAotCompile *acfg, MonoMethodSignature *sig, guint8 *buf, guint8 **endbuf)
2163 /* Similar to the metadata encoding */
2164 if (sig->generic_param_count)
2168 if (sig->explicit_this)
2170 flags |= (sig->call_convention & 0x0F);
2174 if (sig->generic_param_count)
2175 encode_value (sig->generic_param_count, p, &p);
2176 encode_value (sig->param_count, p, &p);
2178 encode_type (acfg, sig->ret, p, &p);
2179 for (i = 0; i < sig->param_count; ++i) {
2180 if (sig->sentinelpos == i) {
2181 *p = MONO_TYPE_SENTINEL;
2184 encode_type (acfg, sig->params [i], p, &p);
2190 #define MAX_IMAGE_INDEX 250
2193 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf)
2195 guint32 image_index = get_image_index (acfg, method->klass->image);
2196 guint32 token = method->token;
2197 MonoJumpInfoToken *ji;
2201 * The encoding for most methods is as follows:
2202 * - image index encoded as a leb128
2203 * - token index encoded as a leb128
2204 * Values of image index >= MONO_AOT_METHODREF_MIN are used to mark additional
2205 * types of method encodings.
2208 g_assert (image_index < MONO_AOT_METHODREF_MIN);
2210 /* Mark methods which can't use aot trampolines because they need the further
2211 * processing in mono_magic_trampoline () which requires a MonoMethod*.
2213 if ((method->is_generic && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) ||
2214 (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED))
2215 encode_value ((MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE << 24), p, &p);
2217 if (method->wrapper_type) {
2218 encode_value ((MONO_AOT_METHODREF_WRAPPER << 24), p, &p);
2220 encode_value (method->wrapper_type, p, &p);
2222 switch (method->wrapper_type) {
2223 case MONO_WRAPPER_REMOTING_INVOKE:
2224 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2225 case MONO_WRAPPER_XDOMAIN_INVOKE: {
2228 m = mono_marshal_method_from_wrapper (method);
2230 encode_method_ref (acfg, m, p, &p);
2233 case MONO_WRAPPER_PROXY_ISINST:
2234 case MONO_WRAPPER_LDFLD:
2235 case MONO_WRAPPER_LDFLDA:
2236 case MONO_WRAPPER_STFLD:
2237 case MONO_WRAPPER_ISINST: {
2238 MonoClass *proxy_class = mono_marshal_get_wrapper_info (method);
2239 encode_klass_ref (acfg, proxy_class, p, &p);
2242 case MONO_WRAPPER_LDFLD_REMOTE:
2243 case MONO_WRAPPER_STFLD_REMOTE:
2245 case MONO_WRAPPER_ALLOC: {
2246 AllocatorWrapperInfo *info = mono_marshal_get_wrapper_info (method);
2248 /* The GC name is saved once in MonoAotFileInfo */
2249 g_assert (info->alloc_type != -1);
2250 encode_value (info->alloc_type, p, &p);
2253 case MONO_WRAPPER_WRITE_BARRIER:
2255 case MONO_WRAPPER_STELEMREF: {
2256 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2259 encode_value (info->subtype, p, &p);
2260 if (info->subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF)
2261 encode_value (info->d.virtual_stelemref.kind, p, &p);
2264 case MONO_WRAPPER_UNKNOWN: {
2265 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2268 encode_value (info->subtype, p, &p);
2269 if (info->subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE ||
2270 info->subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR)
2271 encode_klass_ref (acfg, method->klass, p, &p);
2272 else if (info->subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER)
2273 encode_method_ref (acfg, info->d.synchronized_inner.method, p, &p);
2276 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
2277 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2280 encode_value (info->subtype, p, &p);
2281 if (info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
2282 strcpy ((char*)p, method->name);
2283 p += strlen (method->name) + 1;
2284 } else if (info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT) {
2285 encode_method_ref (acfg, info->d.managed_to_native.method, p, &p);
2287 g_assert (info->subtype == WRAPPER_SUBTYPE_NONE);
2288 encode_method_ref (acfg, info->d.managed_to_native.method, p, &p);
2292 case MONO_WRAPPER_SYNCHRONIZED: {
2295 m = mono_marshal_method_from_wrapper (method);
2297 g_assert (m != method);
2298 encode_method_ref (acfg, m, p, &p);
2301 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
2302 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2305 encode_value (info->subtype, p, &p);
2307 if (info->subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) {
2308 encode_value (info->d.element_addr.rank, p, &p);
2309 encode_value (info->d.element_addr.elem_size, p, &p);
2310 } else if (info->subtype == WRAPPER_SUBTYPE_STRING_CTOR) {
2311 encode_method_ref (acfg, info->d.string_ctor.method, p, &p);
2313 g_assert_not_reached ();
2317 case MONO_WRAPPER_CASTCLASS: {
2318 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2321 encode_value (info->subtype, p, &p);
2324 case MONO_WRAPPER_RUNTIME_INVOKE: {
2325 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2328 encode_value (info->subtype, p, &p);
2329 if (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL)
2330 encode_method_ref (acfg, info->d.runtime_invoke.method, p, &p);
2332 MonoMethodSignature *sig;
2334 encode_value (0, p, &p);
2336 sig = mono_method_signature (method);
2337 encode_signature (acfg, sig, p, &p);
2341 case MONO_WRAPPER_DELEGATE_INVOKE:
2342 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
2343 case MONO_WRAPPER_DELEGATE_END_INVOKE: {
2344 MonoMethodSignature *sig = mono_method_signature (method);
2345 encode_signature (acfg, sig, p, &p);
2348 case MONO_WRAPPER_NATIVE_TO_MANAGED: {
2349 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2352 encode_method_ref (acfg, info->d.native_to_managed.method, p, &p);
2353 encode_klass_ref (acfg, info->d.native_to_managed.klass, p, &p);
2357 g_assert_not_reached ();
2359 } else if (mono_method_signature (method)->is_inflated) {
2361 * This is a generic method, find the original token which referenced it and
2363 * Obtain the token from information recorded by the JIT.
2365 ji = g_hash_table_lookup (acfg->token_info_hash, method);
2367 image_index = get_image_index (acfg, ji->image);
2368 g_assert (image_index < MAX_IMAGE_INDEX);
2371 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
2372 encode_value (image_index, p, &p);
2373 encode_value (token, p, &p);
2375 MonoMethod *declaring;
2376 MonoGenericContext *context = mono_method_get_context (method);
2378 g_assert (method->is_inflated);
2379 declaring = ((MonoMethodInflated*)method)->declaring;
2382 * This might be a non-generic method of a generic instance, which
2383 * doesn't have a token since the reference is generated by the JIT
2384 * like Nullable:Box/Unbox, or by generic sharing.
2387 encode_value ((MONO_AOT_METHODREF_GINST << 24), p, &p);
2388 /* Encode the klass */
2389 encode_klass_ref (acfg, method->klass, p, &p);
2390 /* Encode the method */
2391 image_index = get_image_index (acfg, method->klass->image);
2392 g_assert (image_index < MAX_IMAGE_INDEX);
2393 g_assert (declaring->token);
2394 token = declaring->token;
2395 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
2396 encode_value (image_index, p, &p);
2397 encode_value (token, p, &p);
2398 encode_generic_context (acfg, context, p, &p);
2400 } else if (token == 0) {
2401 /* This might be a method of a constructed type like int[,].Set */
2402 /* Obtain the token from information recorded by the JIT */
2403 ji = g_hash_table_lookup (acfg->token_info_hash, method);
2405 image_index = get_image_index (acfg, ji->image);
2406 g_assert (image_index < MAX_IMAGE_INDEX);
2409 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
2410 encode_value (image_index, p, &p);
2411 encode_value (token, p, &p);
2414 g_assert (method->klass->rank);
2416 /* Encode directly */
2417 encode_value ((MONO_AOT_METHODREF_ARRAY << 24), p, &p);
2418 encode_klass_ref (acfg, method->klass, p, &p);
2419 if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank)
2420 encode_value (0, p, &p);
2421 else if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank * 2)
2422 encode_value (1, p, &p);
2423 else if (!strcmp (method->name, "Get"))
2424 encode_value (2, p, &p);
2425 else if (!strcmp (method->name, "Address"))
2426 encode_value (3, p, &p);
2427 else if (!strcmp (method->name, "Set"))
2428 encode_value (4, p, &p);
2430 g_assert_not_reached ();
2433 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
2434 encode_value ((image_index << 24) | mono_metadata_token_index (token), p, &p);
2440 compare_patches (gconstpointer a, gconstpointer b)
2444 i = (*(MonoJumpInfo**)a)->ip.i;
2445 j = (*(MonoJumpInfo**)b)->ip.i;
2456 static G_GNUC_UNUSED char*
2457 patch_to_string (MonoJumpInfo *patch_info)
2461 str = g_string_new ("");
2463 g_string_append_printf (str, "%s(", get_patch_name (patch_info->type));
2465 switch (patch_info->type) {
2466 case MONO_PATCH_INFO_VTABLE:
2467 mono_type_get_desc (str, &patch_info->data.klass->byval_arg, TRUE);
2472 g_string_append_printf (str, ")");
2473 return g_string_free (str, FALSE);
2479 * Return whenever PATCH_INFO refers to a direct call, and thus requires a
2482 static inline gboolean
2483 is_plt_patch (MonoJumpInfo *patch_info)
2485 switch (patch_info->type) {
2486 case MONO_PATCH_INFO_METHOD:
2487 case MONO_PATCH_INFO_INTERNAL_METHOD:
2488 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
2489 case MONO_PATCH_INFO_ICALL_ADDR:
2490 case MONO_PATCH_INFO_CLASS_INIT:
2491 case MONO_PATCH_INFO_RGCTX_FETCH:
2492 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
2493 case MONO_PATCH_INFO_MONITOR_ENTER:
2494 case MONO_PATCH_INFO_MONITOR_EXIT:
2495 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
2505 * Return the symbol identifying the plt entry PLT_OFFSET.
2508 get_plt_symbol (MonoAotCompile *acfg, int plt_offset, MonoJumpInfo *patch_info)
2512 * The Apple linker reorganizes object files, so it doesn't like branches to local
2513 * labels, since those have no relocations.
2515 return g_strdup_printf ("%sp_%d", acfg->llvm_label_prefix, plt_offset);
2517 return g_strdup_printf ("%sp_%d", acfg->temp_prefix, plt_offset);
2524 * Return a PLT entry which belongs to the method identified by PATCH_INFO.
2526 static MonoPltEntry*
2527 get_plt_entry (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
2531 if (!is_plt_patch (patch_info))
2534 res = g_hash_table_lookup (acfg->patch_to_plt_entry, patch_info);
2536 // FIXME: This breaks the calculation of final_got_size
2537 if (!acfg->llvm && patch_info->type == MONO_PATCH_INFO_METHOD && (patch_info->data.method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)) {
2539 * Allocate a separate PLT slot for each such patch, since some plt
2540 * entries will refer to the method itself, and some will refer to the
2547 MonoJumpInfo *new_ji;
2549 g_assert (!acfg->final_got_size);
2551 new_ji = mono_patch_info_dup_mp (acfg->mempool, patch_info);
2553 res = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoPltEntry));
2554 res->plt_offset = acfg->plt_offset;
2556 res->symbol = get_plt_symbol (acfg, res->plt_offset, patch_info);
2557 if (acfg->aot_opts.write_symbols)
2558 res->debug_sym = get_plt_entry_debug_sym (acfg, res->ji, acfg->plt_entry_debug_sym_cache);
2560 res->llvm_symbol = g_strdup_printf ("%s_%s_llvm", res->symbol, res->debug_sym);
2562 res->llvm_symbol = g_strdup_printf ("%s_llvm", res->symbol);
2564 g_hash_table_insert (acfg->patch_to_plt_entry, new_ji, res);
2566 g_hash_table_insert (acfg->plt_offset_to_entry, GUINT_TO_POINTER (res->plt_offset), res);
2568 acfg->plt_offset ++;
2577 * Returns the offset of the GOT slot where the runtime object resulting from resolving
2578 * JI could be found if it exists, otherwise allocates a new one.
2581 get_got_offset (MonoAotCompile *acfg, MonoJumpInfo *ji)
2585 got_offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_got_offset_by_type [ji->type], ji));
2587 return got_offset - 1;
2589 got_offset = acfg->got_offset;
2590 acfg->got_offset ++;
2592 if (acfg->final_got_size)
2593 g_assert (got_offset < acfg->final_got_size);
2595 acfg->stats.got_slots ++;
2596 acfg->stats.got_slot_types [ji->type] ++;
2598 g_hash_table_insert (acfg->patch_to_got_offset, ji, GUINT_TO_POINTER (got_offset + 1));
2599 g_hash_table_insert (acfg->patch_to_got_offset_by_type [ji->type], ji, GUINT_TO_POINTER (got_offset + 1));
2600 g_ptr_array_add (acfg->got_patches, ji);
2605 /* Add a method to the list of methods which need to be emitted */
2607 add_method_with_index (MonoAotCompile *acfg, MonoMethod *method, int index, gboolean extra)
2610 if (!g_hash_table_lookup (acfg->method_indexes, method)) {
2611 g_ptr_array_add (acfg->methods, method);
2612 g_hash_table_insert (acfg->method_indexes, method, GUINT_TO_POINTER (index + 1));
2613 acfg->nmethods = acfg->methods->len + 1;
2616 if (method->wrapper_type || extra)
2617 g_ptr_array_add (acfg->extra_methods, method);
2621 get_method_index (MonoAotCompile *acfg, MonoMethod *method)
2623 int index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
2631 add_method_full (MonoAotCompile *acfg, MonoMethod *method, gboolean extra, int depth)
2635 index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
2639 index = acfg->method_index;
2640 add_method_with_index (acfg, method, index, extra);
2642 g_ptr_array_add (acfg->method_order, GUINT_TO_POINTER (index));
2644 g_hash_table_insert (acfg->method_depth, method, GUINT_TO_POINTER (depth));
2646 acfg->method_index ++;
2652 add_method (MonoAotCompile *acfg, MonoMethod *method)
2654 return add_method_full (acfg, method, FALSE, 0);
2658 add_extra_method (MonoAotCompile *acfg, MonoMethod *method)
2660 add_method_full (acfg, method, TRUE, 0);
2664 add_extra_method_with_depth (MonoAotCompile *acfg, MonoMethod *method, int depth)
2666 if (acfg->aot_opts.log_generics)
2667 printf ("%*sAdding method %s.\n", depth, "", mono_method_full_name (method, TRUE));
2669 add_method_full (acfg, method, TRUE, depth);
2673 add_jit_icall_wrapper (gpointer key, gpointer value, gpointer user_data)
2675 MonoAotCompile *acfg = user_data;
2676 MonoJitICallInfo *callinfo = value;
2677 MonoMethod *wrapper;
2683 name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
2684 wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_for_pending_exc);
2687 add_method (acfg, wrapper);
2691 get_runtime_invoke_sig (MonoMethodSignature *sig)
2693 MonoMethodBuilder *mb;
2696 mb = mono_mb_new (mono_defaults.object_class, "FOO", MONO_WRAPPER_NONE);
2697 m = mono_mb_create_method (mb, sig, 16);
2698 return mono_marshal_get_runtime_invoke (m, FALSE);
2702 can_marshal_struct (MonoClass *klass)
2704 MonoClassField *field;
2705 gboolean can_marshal = TRUE;
2706 gpointer iter = NULL;
2708 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2711 /* Only allow a few field types to avoid asserts in the marshalling code */
2712 while ((field = mono_class_get_fields (klass, &iter))) {
2713 if ((field->type->attrs & FIELD_ATTRIBUTE_STATIC))
2716 switch (field->type->type) {
2721 case MONO_TYPE_BOOLEAN:
2724 case MONO_TYPE_CHAR:
2732 case MONO_TYPE_STRING:
2734 case MONO_TYPE_VALUETYPE:
2735 if (!mono_class_from_mono_type (field->type)->enumtype && !can_marshal_struct (mono_class_from_mono_type (field->type)))
2736 can_marshal = FALSE;
2739 can_marshal = FALSE;
2745 /* Its hard to compute whenever these can be marshalled or not */
2746 if (!strcmp (klass->name_space, "System.Net.NetworkInformation.MacOsStructs"))
2753 add_wrappers (MonoAotCompile *acfg)
2755 MonoMethod *method, *m;
2757 MonoMethodSignature *sig, *csig;
2761 * FIXME: Instead of AOTing all the wrappers, it might be better to redesign them
2762 * so there is only one wrapper of a given type, or inlining their contents into their
2767 * FIXME: This depends on the fact that different wrappers have different
2771 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2773 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2774 gboolean skip = FALSE;
2776 method = mono_get_method (acfg->image, token, NULL);
2778 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2779 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
2780 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
2783 if (method->is_generic || method->klass->generic_container)
2786 /* Skip methods which can not be handled by get_runtime_invoke () */
2787 sig = mono_method_signature (method);
2790 if ((sig->ret->type == MONO_TYPE_PTR) ||
2791 (sig->ret->type == MONO_TYPE_TYPEDBYREF))
2794 for (j = 0; j < sig->param_count; j++) {
2795 if (sig->params [j]->type == MONO_TYPE_TYPEDBYREF)
2799 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
2800 if (!method->klass->contextbound) {
2801 MonoDynCallInfo *info = mono_arch_dyn_call_prepare (sig);
2802 gboolean has_nullable = FALSE;
2804 for (j = 0; j < sig->param_count; j++) {
2805 if (sig->params [j]->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (sig->params [j])))
2806 has_nullable = TRUE;
2809 if (info && !has_nullable) {
2810 /* Supported by the dynamic runtime-invoke wrapper */
2818 //printf ("%s\n", mono_method_full_name (method, TRUE));
2819 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
2823 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
2824 #ifdef MONO_ARCH_HAVE_TLS_GET
2825 MonoMethodDesc *desc;
2826 MonoMethod *orig_method;
2830 /* Runtime invoke wrappers */
2832 /* void runtime-invoke () [.cctor] */
2833 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2834 csig->ret = &mono_defaults.void_class->byval_arg;
2835 add_method (acfg, get_runtime_invoke_sig (csig));
2837 /* void runtime-invoke () [Finalize] */
2838 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2840 csig->ret = &mono_defaults.void_class->byval_arg;
2841 add_method (acfg, get_runtime_invoke_sig (csig));
2843 /* void runtime-invoke (string) [exception ctor] */
2844 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2846 csig->ret = &mono_defaults.void_class->byval_arg;
2847 csig->params [0] = &mono_defaults.string_class->byval_arg;
2848 add_method (acfg, get_runtime_invoke_sig (csig));
2850 /* void runtime-invoke (string, string) [exception ctor] */
2851 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2853 csig->ret = &mono_defaults.void_class->byval_arg;
2854 csig->params [0] = &mono_defaults.string_class->byval_arg;
2855 csig->params [1] = &mono_defaults.string_class->byval_arg;
2856 add_method (acfg, get_runtime_invoke_sig (csig));
2858 /* string runtime-invoke () [Exception.ToString ()] */
2859 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2861 csig->ret = &mono_defaults.string_class->byval_arg;
2862 add_method (acfg, get_runtime_invoke_sig (csig));
2864 /* void runtime-invoke (string, Exception) [exception ctor] */
2865 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2867 csig->ret = &mono_defaults.void_class->byval_arg;
2868 csig->params [0] = &mono_defaults.string_class->byval_arg;
2869 csig->params [1] = &mono_defaults.exception_class->byval_arg;
2870 add_method (acfg, get_runtime_invoke_sig (csig));
2872 /* Assembly runtime-invoke (string, bool) [DoAssemblyResolve] */
2873 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2875 csig->ret = &(mono_class_from_name (
2876 mono_defaults.corlib, "System.Reflection", "Assembly"))->byval_arg;
2877 csig->params [0] = &mono_defaults.string_class->byval_arg;
2878 csig->params [1] = &mono_defaults.boolean_class->byval_arg;
2879 add_method (acfg, get_runtime_invoke_sig (csig));
2881 /* runtime-invoke used by finalizers */
2882 add_method (acfg, mono_marshal_get_runtime_invoke (mono_class_get_method_from_name_flags (mono_defaults.object_class, "Finalize", 0, 0), TRUE));
2884 /* This is used by mono_runtime_capture_context () */
2885 method = mono_get_context_capture_method ();
2887 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
2889 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
2890 add_method (acfg, mono_marshal_get_runtime_invoke_dynamic ());
2893 /* JIT icall wrappers */
2894 /* FIXME: locking */
2895 g_hash_table_foreach (mono_get_jit_icall_info (), add_jit_icall_wrapper, acfg);
2898 add_method (acfg, mono_marshal_get_stelemref ());
2900 #ifdef MONO_ARCH_HAVE_TLS_GET
2901 /* Managed Allocators */
2902 nallocators = mono_gc_get_managed_allocator_types ();
2903 for (i = 0; i < nallocators; ++i) {
2904 m = mono_gc_get_managed_allocator_by_type (i);
2906 add_method (acfg, m);
2909 /* Monitor Enter/Exit */
2910 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
2911 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
2912 /* This is a v4 method */
2914 method = mono_monitor_get_fast_path (orig_method);
2916 add_method (acfg, method);
2918 mono_method_desc_free (desc);
2920 desc = mono_method_desc_new ("Monitor:Exit(object)", FALSE);
2921 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
2922 g_assert (orig_method);
2923 mono_method_desc_free (desc);
2924 method = mono_monitor_get_fast_path (orig_method);
2926 add_method (acfg, method);
2929 /* Stelemref wrappers */
2930 /* There is only a constant number of these, iterating over all types should handle them all */
2931 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
2934 token = MONO_TOKEN_TYPE_DEF | (i + 1);
2935 klass = mono_class_get (acfg->image, token);
2937 add_method (acfg, mono_marshal_get_virtual_stelemref (mono_array_class_get (klass, 1)));
2939 mono_loader_clear_error ();
2942 /* castclass_with_check wrapper */
2943 add_method (acfg, mono_marshal_get_castclass_with_cache ());
2944 /* isinst_with_check wrapper */
2945 add_method (acfg, mono_marshal_get_isinst_with_cache ());
2947 #if defined(MONO_ARCH_ENABLE_MONITOR_IL_FASTPATH)
2949 MonoMethodDesc *desc;
2952 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
2953 m = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
2954 mono_method_desc_free (desc);
2956 m = mono_monitor_get_fast_path (m);
2958 add_method (acfg, m);
2965 * remoting-invoke-with-check wrappers are very frequent, so avoid emitting them,
2966 * we use the original method instead at runtime.
2967 * Since full-aot doesn't support remoting, this is not a problem.
2970 /* remoting-invoke wrappers */
2971 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2972 MonoMethodSignature *sig;
2974 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2975 method = mono_get_method (acfg->image, token, NULL);
2977 sig = mono_method_signature (method);
2979 if (sig->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class)) {
2980 m = mono_marshal_get_remoting_invoke_with_check (method);
2982 add_method (acfg, m);
2987 /* delegate-invoke wrappers */
2988 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
2990 MonoCustomAttrInfo *cattr;
2992 token = MONO_TOKEN_TYPE_DEF | (i + 1);
2993 klass = mono_class_get (acfg->image, token);
2996 mono_loader_clear_error ();
3000 if (klass->delegate && klass != mono_defaults.delegate_class && klass != mono_defaults.multicastdelegate_class && !klass->generic_container) {
3001 method = mono_get_delegate_invoke (klass);
3003 m = mono_marshal_get_delegate_invoke (method, NULL);
3005 add_method (acfg, m);
3007 method = mono_class_get_method_from_name_flags (klass, "BeginInvoke", -1, 0);
3009 add_method (acfg, mono_marshal_get_delegate_begin_invoke (method));
3011 method = mono_class_get_method_from_name_flags (klass, "EndInvoke", -1, 0);
3013 add_method (acfg, mono_marshal_get_delegate_end_invoke (method));
3015 cattr = mono_custom_attrs_from_class (klass);
3020 for (j = 0; j < cattr->num_attrs; ++j)
3021 if (cattr->attrs [j].ctor && !strcmp (cattr->attrs [j].ctor->klass->name, "MonoNativeFunctionWrapperAttribute"))
3023 if (j < cattr->num_attrs)
3024 add_method (acfg, mono_marshal_get_native_func_wrapper_aot (klass));
3029 /* Synchronized wrappers */
3030 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3031 token = MONO_TOKEN_METHOD_DEF | (i + 1);
3032 method = mono_get_method (acfg->image, token, NULL);
3034 if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED && !method->is_generic)
3035 add_method (acfg, mono_marshal_get_synchronized_wrapper (method));
3038 /* pinvoke wrappers */
3039 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3041 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
3043 method = mono_get_method (acfg->image, token, NULL);
3045 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
3046 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
3047 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
3051 /* native-to-managed wrappers */
3052 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3054 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
3055 MonoCustomAttrInfo *cattr;
3058 method = mono_get_method (acfg->image, token, NULL);
3061 * Only generate native-to-managed wrappers for methods which have an
3062 * attribute named MonoPInvokeCallbackAttribute. We search for the attribute by
3063 * name to avoid defining a new assembly to contain it.
3065 cattr = mono_custom_attrs_from_method (method);
3068 for (j = 0; j < cattr->num_attrs; ++j)
3069 if (cattr->attrs [j].ctor && !strcmp (cattr->attrs [j].ctor->klass->name, "MonoPInvokeCallbackAttribute"))
3071 if (j < cattr->num_attrs) {
3072 MonoCustomAttrEntry *e = &cattr->attrs [j];
3073 MonoMethodSignature *sig = mono_method_signature (e->ctor);
3074 const char *p = (const char*)e->data;
3076 int slen, num_named, named_type, data_type;
3080 char *export_name = NULL;
3081 MonoMethod *wrapper;
3083 /* this cannot be enforced by the C# compiler so we must give the user some warning before aborting */
3084 if (!(method->flags & METHOD_ATTRIBUTE_STATIC)) {
3085 g_warning ("AOT restriction: Method '%s' must be static since it is decorated with [MonoPInvokeCallback]. See http://ios.xamarin.com/Documentation/Limitations#Reverse_Callbacks",
3086 mono_method_full_name (method, TRUE));
3090 g_assert (sig->param_count == 1);
3091 g_assert (sig->params [0]->type == MONO_TYPE_CLASS && !strcmp (mono_class_from_mono_type (sig->params [0])->name, "Type"));
3094 * Decode the cattr manually since we can't create objects
3095 * during aot compilation.
3101 /* From load_cattr_value () in reflection.c */
3102 slen = mono_metadata_decode_value (p, &p);
3103 n = g_memdup (p, slen + 1);
3105 t = mono_reflection_type_from_name (n, acfg->image);
3109 klass = mono_class_from_mono_type (t);
3110 g_assert (klass->parent == mono_defaults.multicastdelegate_class);
3114 num_named = read16 (p);
3117 g_assert (num_named < 2);
3118 if (num_named == 1) {
3121 MonoType *prop_type;
3123 /* parse ExportSymbol attribute */
3125 named_type = *named;
3130 name_len = mono_metadata_decode_blob_size (named, &named);
3131 name = g_malloc (name_len + 1);
3132 memcpy (name, named, name_len);
3133 name [name_len] = 0;
3136 g_assert (named_type == 0x54);
3137 g_assert (!strcmp (name, "ExportSymbol"));
3139 prop_type = &mono_defaults.string_class->byval_arg;
3141 /* load_cattr_value (), string case */
3142 g_assert (*named != (char)0xff);
3143 slen = mono_metadata_decode_value (named, &named);
3144 export_name = g_malloc (slen + 1);
3145 memcpy (export_name, named, slen);
3146 export_name [slen] = 0;
3150 wrapper = mono_marshal_get_managed_wrapper (method, klass, 0);
3151 add_method (acfg, wrapper);
3153 g_hash_table_insert (acfg->export_names, wrapper, export_name);
3157 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
3158 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
3159 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
3163 /* StructureToPtr/PtrToStructure wrappers */
3164 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
3167 token = MONO_TOKEN_TYPE_DEF | (i + 1);
3168 klass = mono_class_get (acfg->image, token);
3171 mono_loader_clear_error ();
3175 if (klass->valuetype && !klass->generic_container && can_marshal_struct (klass)) {
3176 add_method (acfg, mono_marshal_get_struct_to_ptr (klass));
3177 add_method (acfg, mono_marshal_get_ptr_to_struct (klass));
3183 has_type_vars (MonoClass *klass)
3185 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
3188 return has_type_vars (klass->element_class);
3189 if (klass->generic_class) {
3190 MonoGenericContext *context = &klass->generic_class->context;
3191 if (context->class_inst) {
3194 for (i = 0; i < context->class_inst->type_argc; ++i)
3195 if (has_type_vars (mono_class_from_mono_type (context->class_inst->type_argv [i])))
3203 method_has_type_vars (MonoMethod *method)
3205 if (has_type_vars (method->klass))
3208 if (method->is_inflated) {
3209 MonoGenericContext *context = mono_method_get_context (method);
3210 if (context->method_inst) {
3213 for (i = 0; i < context->method_inst->type_argc; ++i)
3214 if (has_type_vars (mono_class_from_mono_type (context->method_inst->type_argv [i])))
3221 static void add_generic_class_with_depth (MonoAotCompile *acfg, MonoClass *klass, int depth, const char *ref);
3224 add_generic_class (MonoAotCompile *acfg, MonoClass *klass, gboolean force, const char *ref)
3226 /* This might lead to a huge code blowup so only do it if neccesary */
3227 if (!acfg->aot_opts.full_aot && !force)
3230 add_generic_class_with_depth (acfg, klass, 0, ref);
3234 check_type_depth (MonoType *t, int depth)
3242 case MONO_TYPE_GENERICINST: {
3243 MonoGenericClass *gklass = t->data.generic_class;
3244 MonoGenericInst *ginst = gklass->context.class_inst;
3247 for (i = 0; i < ginst->type_argc; ++i) {
3248 if (check_type_depth (ginst->type_argv [i], depth + 1))
3262 * add_generic_class:
3264 * Add all methods of a generic class.
3267 add_generic_class_with_depth (MonoAotCompile *acfg, MonoClass *klass, int depth, const char *ref)
3270 MonoClassField *field;
3273 if (!acfg->ginst_hash)
3274 acfg->ginst_hash = g_hash_table_new (NULL, NULL);
3276 mono_class_init (klass);
3278 if (klass->generic_class && klass->generic_class->context.class_inst->is_open)
3281 if (has_type_vars (klass))
3284 if (!klass->generic_class && !klass->rank)
3287 if (!acfg->ginst_hash)
3288 acfg->ginst_hash = g_hash_table_new (NULL, NULL);
3290 if (g_hash_table_lookup (acfg->ginst_hash, klass))
3293 if (check_type_depth (&klass->byval_arg, 0))
3296 if (acfg->aot_opts.log_generics)
3297 printf ("%*sAdding generic instance %s [%s].\n", depth, "", mono_type_full_name (&klass->byval_arg), ref);
3299 g_hash_table_insert (acfg->ginst_hash, klass, klass);
3302 while ((method = mono_class_get_methods (klass, &iter))) {
3303 if (mono_method_is_generic_sharable_impl_full (method, FALSE, FALSE))
3307 if (method->is_generic)
3312 * FIXME: Instances which are referenced by these methods are not added,
3313 * for example Array.Resize<int> for List<int>.Add ().
3315 add_extra_method_with_depth (acfg, method, depth + 1);
3319 while ((field = mono_class_get_fields (klass, &iter))) {
3320 if (field->type->type == MONO_TYPE_GENERICINST)
3321 add_generic_class_with_depth (acfg, mono_class_from_mono_type (field->type), depth + 1, "field");
3324 if (klass->delegate) {
3325 method = mono_get_delegate_invoke (klass);
3327 method = mono_marshal_get_delegate_invoke (method, NULL);
3329 if (acfg->aot_opts.log_generics)
3330 printf ("%*sAdding method %s.\n", depth, "", mono_method_full_name (method, TRUE));
3332 add_method (acfg, method);
3335 /* Add superclasses */
3337 add_generic_class_with_depth (acfg, klass->parent, depth, "parent");
3340 * For ICollection<T>, add instances of the helper methods
3341 * in Array, since a T[] could be cast to ICollection<T>.
3343 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") &&
3344 (!strcmp(klass->name, "ICollection`1") || !strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IList`1") || !strcmp (klass->name, "IEnumerator`1"))) {
3345 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
3346 MonoClass *array_class = mono_bounded_array_class_get (tclass, 1, FALSE);
3350 if (!strcmp (klass->name, "IEnumerator`1"))
3351 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, "IEnumerable`1");
3353 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
3355 /* Add the T[]/InternalEnumerator class */
3356 if (!strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IEnumerator`1")) {
3360 while ((nclass = mono_class_get_nested_types (array_class->parent, &iter))) {
3361 if (!strcmp (nclass->name, "InternalEnumerator`1"))
3365 nclass = mono_class_inflate_generic_class (nclass, mono_generic_class_get_context (klass->generic_class));
3366 add_generic_class (acfg, nclass, FALSE, "ICollection<T>");
3370 while ((method = mono_class_get_methods (array_class, &iter))) {
3371 if (strstr (method->name, name_prefix)) {
3372 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
3374 add_extra_method_with_depth (acfg, m, depth);
3378 g_free (name_prefix);
3381 /* Add an instance of GenericComparer<T> which is created dynamically by Comparer<T> */
3382 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "Comparer`1")) {
3383 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
3384 MonoClass *icomparable, *gcomparer;
3385 MonoGenericContext ctx;
3386 MonoType *args [16];
3388 memset (&ctx, 0, sizeof (ctx));
3390 icomparable = mono_class_from_name (mono_defaults.corlib, "System", "IComparable`1");
3391 g_assert (icomparable);
3392 args [0] = &tclass->byval_arg;
3393 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
3395 if (mono_class_is_assignable_from (mono_class_inflate_generic_class (icomparable, &ctx), tclass)) {
3396 gcomparer = mono_class_from_name (mono_defaults.corlib, "System.Collections.Generic", "GenericComparer`1");
3397 g_assert (gcomparer);
3398 add_generic_class (acfg, mono_class_inflate_generic_class (gcomparer, &ctx), FALSE, "Comparer<T>");
3402 /* Add an instance of GenericEqualityComparer<T> which is created dynamically by EqualityComparer<T> */
3403 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "EqualityComparer`1")) {
3404 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
3405 MonoClass *iface, *gcomparer;
3406 MonoGenericContext ctx;
3407 MonoType *args [16];
3409 memset (&ctx, 0, sizeof (ctx));
3411 iface = mono_class_from_name (mono_defaults.corlib, "System", "IEquatable`1");
3413 args [0] = &tclass->byval_arg;
3414 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
3416 if (mono_class_is_assignable_from (mono_class_inflate_generic_class (iface, &ctx), tclass)) {
3417 gcomparer = mono_class_from_name (mono_defaults.corlib, "System.Collections.Generic", "GenericEqualityComparer`1");
3418 g_assert (gcomparer);
3419 add_generic_class (acfg, mono_class_inflate_generic_class (gcomparer, &ctx), FALSE, "EqualityComparer<T>");
3425 add_instances_of (MonoAotCompile *acfg, MonoClass *klass, MonoType **insts, int ninsts, gboolean force)
3428 MonoGenericContext ctx;
3429 MonoType *args [16];
3431 memset (&ctx, 0, sizeof (ctx));
3433 for (i = 0; i < ninsts; ++i) {
3434 args [0] = insts [i];
3435 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
3436 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx), force, "");
3441 add_types_from_method_header (MonoAotCompile *acfg, MonoMethod *method)
3443 MonoMethodHeader *header;
3444 MonoMethodSignature *sig;
3447 depth = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_depth, method));
3449 sig = mono_method_signature (method);
3452 for (j = 0; j < sig->param_count; ++j)
3453 if (sig->params [j]->type == MONO_TYPE_GENERICINST)
3454 add_generic_class_with_depth (acfg, mono_class_from_mono_type (sig->params [j]), depth + 1, "arg");
3457 header = mono_method_get_header (method);
3460 for (j = 0; j < header->num_locals; ++j)
3461 if (header->locals [j]->type == MONO_TYPE_GENERICINST)
3462 add_generic_class_with_depth (acfg, mono_class_from_mono_type (header->locals [j]), depth + 1, "local");
3467 * add_generic_instances:
3469 * Add instances referenced by the METHODSPEC/TYPESPEC table.
3472 add_generic_instances (MonoAotCompile *acfg)
3477 MonoGenericContext *context;
3479 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHODSPEC].rows; ++i) {
3480 token = MONO_TOKEN_METHOD_SPEC | (i + 1);
3481 method = mono_get_method (acfg->image, token, NULL);
3486 if (method->klass->image != acfg->image)
3489 context = mono_method_get_context (method);
3491 if (context && ((context->class_inst && context->class_inst->is_open)))
3495 * For open methods, create an instantiation which can be passed to the JIT.
3496 * FIXME: Handle class_inst as well.
3498 if (context && context->method_inst && context->method_inst->is_open) {
3499 MonoGenericContext shared_context;
3500 MonoGenericInst *inst;
3501 MonoType **type_argv;
3503 MonoMethod *declaring_method;
3504 gboolean supported = TRUE;
3506 /* Check that the context doesn't contain open constructed types */
3507 if (context->class_inst) {
3508 inst = context->class_inst;
3509 for (i = 0; i < inst->type_argc; ++i) {
3510 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)
3512 if (mono_class_is_open_constructed_type (inst->type_argv [i]))
3516 if (context->method_inst) {
3517 inst = context->method_inst;
3518 for (i = 0; i < inst->type_argc; ++i) {
3519 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)
3521 if (mono_class_is_open_constructed_type (inst->type_argv [i]))
3529 memset (&shared_context, 0, sizeof (MonoGenericContext));
3531 inst = context->class_inst;
3533 type_argv = g_new0 (MonoType*, inst->type_argc);
3534 for (i = 0; i < inst->type_argc; ++i) {
3535 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)
3536 type_argv [i] = &mono_defaults.object_class->byval_arg;
3538 type_argv [i] = inst->type_argv [i];
3541 shared_context.class_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
3545 inst = context->method_inst;
3547 type_argv = g_new0 (MonoType*, inst->type_argc);
3548 for (i = 0; i < inst->type_argc; ++i) {
3549 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)
3550 type_argv [i] = &mono_defaults.object_class->byval_arg;
3552 type_argv [i] = inst->type_argv [i];
3555 shared_context.method_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
3559 if (method->is_generic || method->klass->generic_container)
3560 declaring_method = method;
3562 declaring_method = mono_method_get_declaring_generic_method (method);
3564 method = mono_class_inflate_generic_method (declaring_method, &shared_context);
3568 * If the method is fully sharable, it was already added in place of its
3569 * generic definition.
3571 if (mono_method_is_generic_sharable_impl_full (method, FALSE, FALSE))
3575 * FIXME: Partially shared methods are not shared here, so we end up with
3576 * many identical methods.
3578 add_extra_method (acfg, method);
3581 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
3584 token = MONO_TOKEN_TYPE_SPEC | (i + 1);
3586 klass = mono_class_get (acfg->image, token);
3587 if (!klass || klass->rank) {
3588 mono_loader_clear_error ();
3592 add_generic_class (acfg, klass, FALSE, "typespec");
3595 /* Add types of args/locals */
3596 for (i = 0; i < acfg->methods->len; ++i) {
3597 method = g_ptr_array_index (acfg->methods, i);
3598 add_types_from_method_header (acfg, method);
3601 if (acfg->image == mono_defaults.corlib) {
3603 MonoType *insts [256];
3606 insts [ninsts ++] = &mono_defaults.byte_class->byval_arg;
3607 insts [ninsts ++] = &mono_defaults.sbyte_class->byval_arg;
3608 insts [ninsts ++] = &mono_defaults.int16_class->byval_arg;
3609 insts [ninsts ++] = &mono_defaults.uint16_class->byval_arg;
3610 insts [ninsts ++] = &mono_defaults.int32_class->byval_arg;
3611 insts [ninsts ++] = &mono_defaults.uint32_class->byval_arg;
3612 insts [ninsts ++] = &mono_defaults.int64_class->byval_arg;
3613 insts [ninsts ++] = &mono_defaults.uint64_class->byval_arg;
3614 insts [ninsts ++] = &mono_defaults.single_class->byval_arg;
3615 insts [ninsts ++] = &mono_defaults.double_class->byval_arg;
3616 insts [ninsts ++] = &mono_defaults.char_class->byval_arg;
3617 insts [ninsts ++] = &mono_defaults.boolean_class->byval_arg;
3619 /* Add GenericComparer<T> instances for primitive types for Enum.ToString () */
3620 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericComparer`1");
3622 add_instances_of (acfg, klass, insts, ninsts, TRUE);
3623 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericEqualityComparer`1");
3625 add_instances_of (acfg, klass, insts, ninsts, TRUE);
3627 /* Add instances of the array generic interfaces for primitive types */
3628 /* This will add instances of the InternalArray_ helper methods in Array too */
3629 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "ICollection`1");
3631 add_instances_of (acfg, klass, insts, ninsts, TRUE);
3632 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "IList`1");
3634 add_instances_of (acfg, klass, insts, ninsts, TRUE);
3635 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "IEnumerable`1");
3637 add_instances_of (acfg, klass, insts, ninsts, TRUE);
3640 * Add a managed-to-native wrapper of Array.GetGenericValueImpl<object>, which is
3641 * used for all instances of GetGenericValueImpl by the AOT runtime.
3644 MonoGenericContext ctx;
3645 MonoType *args [16];
3646 MonoMethod *get_method;
3647 MonoClass *array_klass = mono_array_class_get (mono_defaults.object_class, 1)->parent;
3649 get_method = mono_class_get_method_from_name (array_klass, "GetGenericValueImpl", 2);
3652 memset (&ctx, 0, sizeof (ctx));
3653 args [0] = &mono_defaults.object_class->byval_arg;
3654 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
3655 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (get_method, &ctx), TRUE, TRUE));
3659 /* Same for CompareExchange<T>/Exchange<T> */
3661 MonoGenericContext ctx;
3662 MonoType *args [16];
3664 MonoClass *interlocked_klass = mono_class_from_name (mono_defaults.corlib, "System.Threading", "Interlocked");
3665 gpointer iter = NULL;
3667 while ((m = mono_class_get_methods (interlocked_klass, &iter))) {
3668 if ((!strcmp (m->name, "CompareExchange") || !strcmp (m->name, "Exchange")) && m->is_generic) {
3669 memset (&ctx, 0, sizeof (ctx));
3670 args [0] = &mono_defaults.object_class->byval_arg;
3671 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
3672 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (m, &ctx), TRUE, TRUE));
3680 * is_direct_callable:
3682 * Return whenever the method identified by JI is directly callable without
3683 * going through the PLT.
3686 is_direct_callable (MonoAotCompile *acfg, MonoMethod *method, MonoJumpInfo *patch_info)
3688 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
3689 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
3691 gboolean direct_callable = TRUE;
3693 if (direct_callable && !(!callee_cfg->has_got_slots && (callee_cfg->method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)))
3694 direct_callable = FALSE;
3695 if ((callee_cfg->method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) && (!method || method->wrapper_type != MONO_WRAPPER_SYNCHRONIZED))
3696 // FIXME: Maybe call the wrapper directly ?
3697 direct_callable = FALSE;
3699 if (acfg->aot_opts.soft_debug) {
3700 /* Disable this so all calls go through load_method (), see the
3701 * mini_get_debug_options ()->load_aot_jit_info_eagerly = TRUE; line in
3702 * mono_debugger_agent_init ().
3704 direct_callable = FALSE;
3707 if (direct_callable)
3710 } else if ((patch_info->type == MONO_PATCH_INFO_ICALL_ADDR && patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
3711 if (acfg->aot_opts.direct_pinvoke)
3713 } else if (patch_info->type == MONO_PATCH_INFO_ICALL_ADDR) {
3714 if (acfg->aot_opts.direct_icalls)
3723 get_pinvoke_import (MonoAotCompile *acfg, MonoMethod *method)
3725 MonoImage *image = method->klass->image;
3726 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
3727 MonoTableInfo *tables = image->tables;
3728 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
3729 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
3730 guint32 im_cols [MONO_IMPLMAP_SIZE];
3733 import = g_hash_table_lookup (acfg->method_to_pinvoke_import, method);
3737 if (!piinfo->implmap_idx || piinfo->implmap_idx > im->rows)
3740 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
3742 if (!im_cols [MONO_IMPLMAP_SCOPE] || im_cols [MONO_IMPLMAP_SCOPE] > mr->rows)
3745 import = g_strdup_printf ("%s", mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]));
3747 g_hash_table_insert (acfg->method_to_pinvoke_import, method, import);
3753 * emit_and_reloc_code:
3755 * Emit the native code in CODE, handling relocations along the way. If GOT_ONLY
3756 * is true, calls are made through the GOT too. This is used for emitting trampolines
3757 * in full-aot mode, since calls made from trampolines couldn't go through the PLT,
3758 * since trampolines are needed to make PTL work.
3761 emit_and_reloc_code (MonoAotCompile *acfg, MonoMethod *method, guint8 *code, guint32 code_len, MonoJumpInfo *relocs, gboolean got_only)
3763 int i, pindex, start_index, method_index;
3765 MonoJumpInfo *patch_info;
3766 MonoMethodHeader *header;
3767 gboolean skip, direct_call;
3769 char direct_call_target [1024];
3770 const char *direct_pinvoke;
3773 header = mono_method_get_header (method);
3775 method_index = get_method_index (acfg, method);
3778 /* Collect and sort relocations */
3779 patches = g_ptr_array_new ();
3780 for (patch_info = relocs; patch_info; patch_info = patch_info->next)
3781 g_ptr_array_add (patches, patch_info);
3782 g_ptr_array_sort (patches, compare_patches);
3785 for (i = 0; i < code_len; i++) {
3787 for (pindex = start_index; pindex < patches->len; ++pindex) {
3788 patch_info = g_ptr_array_index (patches, pindex);
3789 if (patch_info->ip.i >= i)
3793 #ifdef MONO_ARCH_AOT_SUPPORTED
3795 if (patch_info && (patch_info->ip.i == i) && (pindex < patches->len)) {
3796 start_index = pindex;
3798 switch (patch_info->type) {
3799 case MONO_PATCH_INFO_NONE:
3801 case MONO_PATCH_INFO_GOT_OFFSET: {
3804 arch_emit_got_offset (acfg, code + i, &code_size);
3807 patch_info->type = MONO_PATCH_INFO_NONE;
3812 * If this patch is a call, try emitting a direct call instead of
3813 * through a PLT entry. This is possible if the called method is in
3814 * the same assembly and requires no initialization.
3816 direct_call = FALSE;
3817 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
3818 if (!got_only && is_direct_callable (acfg, method, patch_info)) {
3819 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
3820 //printf ("DIRECT: %s %s\n", method ? mono_method_full_name (method, TRUE) : "", mono_method_full_name (callee_cfg->method, TRUE));
3822 g_assert (strlen (callee_cfg->asm_symbol) < 1000);
3823 sprintf (direct_call_target, "%s", callee_cfg->asm_symbol);
3826 acfg->stats.all_calls ++;
3827 } else if (patch_info->type == MONO_PATCH_INFO_ICALL_ADDR) {
3828 if (!got_only && is_direct_callable (acfg, method, patch_info)) {
3829 if (!(patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
3830 direct_pinvoke = mono_lookup_icall_symbol (patch_info->data.method);
3832 direct_pinvoke = get_pinvoke_import (acfg, patch_info->data.method);
3833 if (direct_pinvoke) {
3835 #if defined(__APPLE__)
3841 g_assert (strlen (direct_pinvoke) < 1000);
3842 sprintf (direct_call_target, "%s%s", prefix, direct_pinvoke);
3848 patch_info->type = MONO_PATCH_INFO_NONE;
3849 acfg->stats.direct_calls ++;
3852 if (!got_only && !direct_call) {
3853 MonoPltEntry *plt_entry = get_plt_entry (acfg, patch_info);
3855 /* This patch has a PLT entry, so we must emit a call to the PLT entry */
3857 sprintf (direct_call_target, "%s", plt_entry->symbol);
3859 /* Nullify the patch */
3860 patch_info->type = MONO_PATCH_INFO_NONE;
3861 plt_entry->jit_used = TRUE;
3868 arch_emit_direct_call (acfg, direct_call_target, &call_size);
3873 got_slot = get_got_offset (acfg, patch_info);
3875 arch_emit_got_access (acfg, code + i, got_slot, &code_size);
3882 #endif /* MONO_ARCH_AOT_SUPPORTED */
3885 /* Find next patch */
3887 for (pindex = start_index; pindex < patches->len; ++pindex) {
3888 patch_info = g_ptr_array_index (patches, pindex);
3889 if (patch_info->ip.i >= i)
3893 /* Try to emit multiple bytes at once */
3894 if (pindex < patches->len && patch_info->ip.i > i) {
3895 emit_bytes (acfg, code + i, patch_info->ip.i - i);
3896 i = patch_info->ip.i - 1;
3898 emit_bytes (acfg, code + i, 1);
3907 * Modify SYMBOL so it only includes characters permissible in symbols.
3910 sanitize_symbol (char *symbol)
3912 int i, len = strlen (symbol);
3914 for (i = 0; i < len; ++i)
3915 if (!isalnum (symbol [i]) && (symbol [i] != '_'))
3920 get_debug_sym (MonoMethod *method, const char *prefix, GHashTable *cache)
3922 char *name1, *name2, *cached;
3923 int i, j, len, count;
3925 name1 = mono_method_full_name (method, TRUE);
3926 len = strlen (name1);
3927 name2 = malloc (strlen (prefix) + len + 16);
3928 memcpy (name2, prefix, strlen (prefix));
3929 j = strlen (prefix);
3930 for (i = 0; i < len; ++i) {
3931 if (isalnum (name1 [i])) {
3932 name2 [j ++] = name1 [i];
3933 } else if (name1 [i] == ' ' && name1 [i + 1] == '(' && name1 [i + 2] == ')') {
3935 } else if (name1 [i] == ',' && name1 [i + 1] == ' ') {
3938 } else if (name1 [i] == '(' || name1 [i] == ')' || name1 [i] == '>') {
3947 while (g_hash_table_lookup (cache, name2)) {
3948 sprintf (name2 + j, "_%d", count);
3952 cached = g_strdup (name2);
3953 g_hash_table_insert (cache, cached, cached);
3959 emit_method_code (MonoAotCompile *acfg, MonoCompile *cfg)
3964 char *debug_sym = NULL;
3966 int func_alignment = AOT_FUNC_ALIGNMENT;
3967 MonoMethodHeader *header;
3970 method = cfg->orig_method;
3971 code = cfg->native_code;
3972 header = cfg->header;
3974 method_index = get_method_index (acfg, method);
3976 /* Make the labels local */
3977 sprintf (symbol, "%s", cfg->asm_symbol);
3979 emit_section_change (acfg, ".text", 0);
3980 emit_alignment (acfg, func_alignment);
3981 emit_label (acfg, symbol);
3983 if (acfg->aot_opts.write_symbols) {
3985 * Write a C style symbol for every method, this has two uses:
3986 * - it works on platforms where the dwarf debugging info is not
3988 * - it allows the setting of breakpoints of aot-ed methods.
3990 debug_sym = get_debug_sym (method, "", acfg->method_label_hash);
3992 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
3993 if (acfg->need_no_dead_strip)
3994 fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym);
3995 emit_local_symbol (acfg, debug_sym, symbol, TRUE);
3996 emit_label (acfg, debug_sym);
3999 export_name = g_hash_table_lookup (acfg->export_names, method);
4001 /* Emit a global symbol for the method */
4002 emit_global_inner (acfg, export_name, TRUE);
4003 emit_label (acfg, export_name);
4006 if (cfg->verbose_level > 0)
4007 g_print ("Method %s emitted as %s\n", mono_method_full_name (method, TRUE), symbol);
4009 acfg->stats.code_size += cfg->code_len;
4011 acfg->cfgs [method_index]->got_offset = acfg->got_offset;
4013 emit_and_reloc_code (acfg, method, code, cfg->code_len, cfg->patch_info, FALSE);
4017 if (acfg->aot_opts.write_symbols) {
4018 emit_symbol_size (acfg, debug_sym, ".");
4022 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
4023 emit_label (acfg, symbol);
4029 * Encode PATCH_INFO into its disk representation.
4032 encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info, guint8 *buf, guint8 **endbuf)
4036 switch (patch_info->type) {
4037 case MONO_PATCH_INFO_NONE:
4039 case MONO_PATCH_INFO_IMAGE:
4040 encode_value (get_image_index (acfg, patch_info->data.image), p, &p);
4042 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
4043 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
4044 case MONO_PATCH_INFO_CASTCLASS_CACHE:
4046 case MONO_PATCH_INFO_METHOD_REL:
4047 encode_value ((gint)patch_info->data.offset, p, &p);
4049 case MONO_PATCH_INFO_SWITCH: {
4050 gpointer *table = (gpointer *)patch_info->data.table->table;
4053 encode_value (patch_info->data.table->table_size, p, &p);
4054 for (k = 0; k < patch_info->data.table->table_size; k++)
4055 encode_value ((int)(gssize)table [k], p, &p);
4058 case MONO_PATCH_INFO_METHODCONST:
4059 case MONO_PATCH_INFO_METHOD:
4060 case MONO_PATCH_INFO_METHOD_JUMP:
4061 case MONO_PATCH_INFO_ICALL_ADDR:
4062 case MONO_PATCH_INFO_METHOD_RGCTX:
4063 encode_method_ref (acfg, patch_info->data.method, p, &p);
4065 case MONO_PATCH_INFO_INTERNAL_METHOD:
4066 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
4067 guint32 len = strlen (patch_info->data.name);
4069 encode_value (len, p, &p);
4071 memcpy (p, patch_info->data.name, len);
4076 case MONO_PATCH_INFO_LDSTR: {
4077 guint32 image_index = get_image_index (acfg, patch_info->data.token->image);
4078 guint32 token = patch_info->data.token->token;
4079 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_STRING);
4080 encode_value (image_index, p, &p);
4081 encode_value (patch_info->data.token->token - MONO_TOKEN_STRING, p, &p);
4084 case MONO_PATCH_INFO_RVA:
4085 case MONO_PATCH_INFO_DECLSEC:
4086 case MONO_PATCH_INFO_LDTOKEN:
4087 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4088 encode_value (get_image_index (acfg, patch_info->data.token->image), p, &p);
4089 encode_value (patch_info->data.token->token, p, &p);
4090 encode_value (patch_info->data.token->has_context, p, &p);
4091 if (patch_info->data.token->has_context)
4092 encode_generic_context (acfg, &patch_info->data.token->context, p, &p);
4094 case MONO_PATCH_INFO_EXC_NAME: {
4095 MonoClass *ex_class;
4098 mono_class_from_name (mono_defaults.exception_class->image,
4099 "System", patch_info->data.target);
4100 g_assert (ex_class);
4101 encode_klass_ref (acfg, ex_class, p, &p);
4104 case MONO_PATCH_INFO_R4:
4105 encode_value (*((guint32 *)patch_info->data.target), p, &p);
4107 case MONO_PATCH_INFO_R8:
4108 encode_value (((guint32 *)patch_info->data.target) [MINI_LS_WORD_IDX], p, &p);
4109 encode_value (((guint32 *)patch_info->data.target) [MINI_MS_WORD_IDX], p, &p);
4111 case MONO_PATCH_INFO_VTABLE:
4112 case MONO_PATCH_INFO_CLASS:
4113 case MONO_PATCH_INFO_IID:
4114 case MONO_PATCH_INFO_ADJUSTED_IID:
4115 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
4117 case MONO_PATCH_INFO_CLASS_INIT:
4118 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
4119 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
4121 case MONO_PATCH_INFO_FIELD:
4122 case MONO_PATCH_INFO_SFLDA:
4123 encode_field_info (acfg, patch_info->data.field, p, &p);
4125 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
4127 case MONO_PATCH_INFO_RGCTX_FETCH: {
4128 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
4133 * entry->method has a lenghtly encoding and multiple rgctx_fetch entries
4134 * reference the same method, so encode the method only once.
4136 offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_blob_hash, entry->method));
4138 buf2 = g_malloc (1024);
4141 encode_method_ref (acfg, entry->method, p2, &p2);
4142 g_assert (p2 - buf2 < 1024);
4144 offset = add_to_blob (acfg, buf2, p2 - buf2);
4147 g_hash_table_insert (acfg->method_blob_hash, entry->method, GUINT_TO_POINTER (offset + 1));
4152 encode_value (offset, p, &p);
4153 g_assert (entry->info_type < 256);
4154 g_assert (entry->data->type < 256);
4155 encode_value ((entry->in_mrgctx ? 1 : 0) | (entry->info_type << 1) | (entry->data->type << 9), p, &p);
4156 encode_patch (acfg, entry->data, p, &p);
4159 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
4160 case MONO_PATCH_INFO_MONITOR_ENTER:
4161 case MONO_PATCH_INFO_MONITOR_EXIT:
4162 case MONO_PATCH_INFO_SEQ_POINT_INFO:
4164 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
4165 encode_method_ref (acfg, patch_info->data.imt_tramp->method, p, &p);
4166 encode_value (patch_info->data.imt_tramp->vt_offset, p, &p);
4168 case MONO_PATCH_INFO_SIGNATURE:
4169 encode_signature (acfg, (MonoMethodSignature*)patch_info->data.target, p, &p);
4172 g_warning ("unable to handle jump info %d", patch_info->type);
4173 g_assert_not_reached ();
4180 encode_patch_list (MonoAotCompile *acfg, GPtrArray *patches, int n_patches, int first_got_offset, guint8 *buf, guint8 **endbuf)
4183 guint32 pindex, offset;
4184 MonoJumpInfo *patch_info;
4186 encode_value (n_patches, p, &p);
4188 for (pindex = 0; pindex < patches->len; ++pindex) {
4189 patch_info = g_ptr_array_index (patches, pindex);
4191 if (patch_info->type == MONO_PATCH_INFO_NONE || patch_info->type == MONO_PATCH_INFO_BB)
4195 offset = get_got_offset (acfg, patch_info);
4196 encode_value (offset, p, &p);
4203 emit_method_info (MonoAotCompile *acfg, MonoCompile *cfg)
4207 int pindex, buf_size, n_patches;
4209 MonoJumpInfo *patch_info;
4210 MonoMethodHeader *header;
4211 guint32 method_index;
4213 guint32 first_got_offset;
4215 method = cfg->orig_method;
4216 header = mono_method_get_header (method);
4218 method_index = get_method_index (acfg, method);
4220 /* Sort relocations */
4221 patches = g_ptr_array_new ();
4222 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next)
4223 g_ptr_array_add (patches, patch_info);
4224 g_ptr_array_sort (patches, compare_patches);
4226 first_got_offset = acfg->cfgs [method_index]->got_offset;
4228 /**********************/
4229 /* Encode method info */
4230 /**********************/
4232 buf_size = (patches->len < 1000) ? 40960 : 40960 + (patches->len * 64);
4233 p = buf = g_malloc (buf_size);
4235 if (mono_class_get_cctor (method->klass))
4236 encode_klass_ref (acfg, method->klass, p, &p);
4238 /* Not needed when loading the method */
4239 encode_value (0, p, &p);
4242 if (cfg->opt & MONO_OPT_SHARED) {
4243 encode_value (g_list_length (cfg->ldstr_list), p, &p);
4244 for (l = cfg->ldstr_list; l; l = l->next) {
4245 encode_value ((long)l->data, p, &p);
4249 /* Used only in shared mode */
4250 g_assert (!cfg->ldstr_list);
4253 for (pindex = 0; pindex < patches->len; ++pindex) {
4254 patch_info = g_ptr_array_index (patches, pindex);
4256 if ((patch_info->type == MONO_PATCH_INFO_GOT_OFFSET) ||
4257 (patch_info->type == MONO_PATCH_INFO_NONE)) {
4258 patch_info->type = MONO_PATCH_INFO_NONE;
4263 if ((patch_info->type == MONO_PATCH_INFO_IMAGE) && (patch_info->data.image == acfg->image)) {
4264 /* Stored in a GOT slot initialized at module load time */
4265 patch_info->type = MONO_PATCH_INFO_NONE;
4269 if (patch_info->type == MONO_PATCH_INFO_GC_CARD_TABLE_ADDR) {
4270 /* Stored in a GOT slot initialized at module load time */
4271 patch_info->type = MONO_PATCH_INFO_NONE;
4275 if (is_plt_patch (patch_info)) {
4276 /* Calls are made through the PLT */
4277 patch_info->type = MONO_PATCH_INFO_NONE;
4285 g_assert (cfg->has_got_slots);
4287 encode_patch_list (acfg, patches, n_patches, first_got_offset, p, &p);
4289 acfg->stats.info_size += p - buf;
4291 g_assert (p - buf < buf_size);
4293 cfg->method_info_offset = add_to_blob (acfg, buf, p - buf);
4298 get_unwind_info_offset (MonoAotCompile *acfg, guint8 *encoded, guint32 encoded_len)
4300 guint32 cache_index;
4303 /* Reuse the unwind module to canonize and store unwind info entries */
4304 cache_index = mono_cache_unwind_info (encoded, encoded_len);
4306 /* Use +/- 1 to distinguish 0s from missing entries */
4307 offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1)));
4315 * It would be easier to use assembler symbols, but the caller needs an
4318 offset = acfg->unwind_info_offset;
4319 g_hash_table_insert (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1), GUINT_TO_POINTER (offset + 1));
4320 g_ptr_array_add (acfg->unwind_ops, GUINT_TO_POINTER (cache_index));
4323 encode_value (encoded_len, p, &p);
4325 acfg->unwind_info_offset += encoded_len + (p - buf);
4331 emit_exception_debug_info (MonoAotCompile *acfg, MonoCompile *cfg)
4334 int i, k, buf_size, method_index;
4335 guint32 debug_info_size;
4337 MonoMethodHeader *header;
4338 guint8 *p, *buf, *debug_info;
4339 MonoJitInfo *jinfo = cfg->jit_info;
4341 gboolean use_unwind_ops = FALSE;
4342 MonoSeqPointInfo *seq_points;
4344 method = cfg->orig_method;
4345 code = cfg->native_code;
4346 header = cfg->header;
4348 method_index = get_method_index (acfg, method);
4350 if (!acfg->aot_opts.nodebug) {
4351 mono_debug_serialize_debug_info (cfg, &debug_info, &debug_info_size);
4354 debug_info_size = 0;
4357 seq_points = cfg->seq_point_info;
4359 buf_size = header->num_clauses * 256 + debug_info_size + 2048 + (seq_points ? (seq_points->len * 64) : 0) + cfg->gc_map_size;
4360 p = buf = g_malloc (buf_size);
4362 #ifdef MONO_ARCH_HAVE_XP_UNWIND
4363 use_unwind_ops = cfg->unwind_ops != NULL;
4366 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);
4368 encode_value (flags, p, &p);
4370 if (use_unwind_ops) {
4371 guint32 encoded_len;
4375 * This is a duplicate of the data in the .debug_frame section, but that
4376 * section cannot be accessed using the dl interface.
4378 encoded = mono_unwind_ops_encode (cfg->unwind_ops, &encoded_len);
4379 encode_value (get_unwind_info_offset (acfg, encoded, encoded_len), p, &p);
4382 encode_value (jinfo->used_regs, p, &p);
4385 /*Encode the number of holes before the number of clauses to make decoding easier*/
4386 if (jinfo->has_try_block_holes) {
4387 MonoTryBlockHoleTableJitInfo *table = mono_jit_info_get_try_block_hole_table_info (jinfo);
4388 encode_value (table->num_holes, p, &p);
4391 /* Exception table */
4392 if (cfg->compile_llvm) {
4394 * When using LLVM, we can't emit some data, like pc offsets, this reg/offset etc.,
4395 * since the information is only available to llc. Instead, we let llc save the data
4396 * into the LSDA, and read it from there at runtime.
4398 /* The assembly might be CIL stripped so emit the data ourselves */
4399 if (header->num_clauses)
4400 encode_value (header->num_clauses, p, &p);
4402 for (k = 0; k < header->num_clauses; ++k) {
4403 MonoExceptionClause *clause;
4405 clause = &header->clauses [k];
4407 encode_value (clause->flags, p, &p);
4408 if (clause->data.catch_class) {
4409 encode_value (1, p, &p);
4410 encode_klass_ref (acfg, clause->data.catch_class, p, &p);
4412 encode_value (0, p, &p);
4415 /* Emit a list of nesting clauses */
4416 for (i = 0; i < header->num_clauses; ++i) {
4418 MonoExceptionClause *clause1 = &header->clauses [cindex1];
4420 MonoExceptionClause *clause2 = &header->clauses [cindex2];
4422 if (cindex1 != cindex2 && clause1->try_offset >= clause2->try_offset && clause1->handler_offset <= clause2->handler_offset)
4423 encode_value (i, p, &p);
4425 encode_value (-1, p, &p);
4428 if (jinfo->num_clauses)
4429 encode_value (jinfo->num_clauses, p, &p);
4431 for (k = 0; k < jinfo->num_clauses; ++k) {
4432 MonoJitExceptionInfo *ei = &jinfo->clauses [k];
4434 encode_value (ei->flags, p, &p);
4435 encode_value (ei->exvar_offset, p, &p);
4437 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
4438 encode_value ((gint)((guint8*)ei->data.filter - code), p, &p);
4440 if (ei->data.catch_class) {
4441 encode_value (1, p, &p);
4442 encode_klass_ref (acfg, ei->data.catch_class, p, &p);
4444 encode_value (0, p, &p);
4448 encode_value ((gint)((guint8*)ei->try_start - code), p, &p);
4449 encode_value ((gint)((guint8*)ei->try_end - code), p, &p);
4450 encode_value ((gint)((guint8*)ei->handler_start - code), p, &p);
4454 if (jinfo->has_generic_jit_info) {
4455 MonoGenericJitInfo *gi = mono_jit_info_get_generic_jit_info (jinfo);
4459 encode_value (gi->nlocs, p, &p);
4461 for (i = 0; i < gi->nlocs; ++i) {
4462 MonoDwarfLocListEntry *entry = &gi->locations [i];
4464 encode_value (entry->is_reg ? 1 : 0, p, &p);
4465 encode_value (entry->reg, p, &p);
4467 encode_value (entry->offset, p, &p);
4469 g_assert (entry->from == 0);
4471 encode_value (entry->from, p, &p);
4472 encode_value (entry->to, p, &p);
4475 if (!cfg->compile_llvm) {
4476 encode_value (gi->has_this ? 1 : 0, p, &p);
4477 encode_value (gi->this_reg, p, &p);
4478 encode_value (gi->this_offset, p, &p);
4483 * Need to encode jinfo->method too, since it is not equal to 'method'
4484 * when using generic sharing.
4486 encode_method_ref (acfg, jinfo->method, p, &p);
4489 if (jinfo->has_try_block_holes) {
4490 MonoTryBlockHoleTableJitInfo *table = mono_jit_info_get_try_block_hole_table_info (jinfo);
4491 for (i = 0; i < table->num_holes; ++i) {
4492 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
4493 encode_value (hole->clause, p, &p);
4494 encode_value (hole->length, p, &p);
4495 encode_value (hole->offset, p, &p);
4499 if (jinfo->has_arch_eh_info) {
4500 MonoArchEHJitInfo *eh_info;
4502 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
4503 encode_value (eh_info->stack_size, p, &p);
4507 int il_offset, native_offset, last_il_offset, last_native_offset, j;
4509 encode_value (seq_points->len, p, &p);
4510 last_il_offset = last_native_offset = 0;
4511 for (i = 0; i < seq_points->len; ++i) {
4512 SeqPoint *sp = &seq_points->seq_points [i];
4513 il_offset = sp->il_offset;
4514 native_offset = sp->native_offset;
4515 encode_value (il_offset - last_il_offset, p, &p);
4516 encode_value (native_offset - last_native_offset, p, &p);
4517 last_il_offset = il_offset;
4518 last_native_offset = native_offset;
4520 encode_value (sp->next_len, p, &p);
4521 for (j = 0; j < sp->next_len; ++j)
4522 encode_value (sp->next [j], p, &p);
4526 g_assert (debug_info_size < buf_size);
4528 encode_value (debug_info_size, p, &p);
4529 if (debug_info_size) {
4530 memcpy (p, debug_info, debug_info_size);
4531 p += debug_info_size;
4532 g_free (debug_info);
4537 encode_value (cfg->gc_map_size, p, &p);
4538 /* The GC map requires 4 bytes of alignment */
4539 while ((gsize)p % 4)
4541 memcpy (p, cfg->gc_map, cfg->gc_map_size);
4542 p += cfg->gc_map_size;
4545 acfg->stats.ex_info_size += p - buf;
4547 g_assert (p - buf < buf_size);
4550 /* The GC Map requires 4 byte alignment */
4551 cfg->ex_info_offset = add_to_blob_aligned (acfg, buf, p - buf, cfg->gc_map ? 4 : 1);
4556 emit_klass_info (MonoAotCompile *acfg, guint32 token)
4558 MonoClass *klass = mono_class_get (acfg->image, token);
4560 int i, buf_size, res;
4561 gboolean no_special_static, cant_encode;
4562 gpointer iter = NULL;
4565 mono_loader_clear_error ();
4569 p = buf = g_malloc (buf_size);
4571 /* Mark as unusable */
4572 encode_value (-1, p, &p);
4574 res = add_to_blob (acfg, buf, p - buf);
4580 buf_size = 10240 + (klass->vtable_size * 16);
4581 p = buf = g_malloc (buf_size);
4585 mono_class_init (klass);
4587 mono_class_get_nested_types (klass, &iter);
4588 g_assert (klass->nested_classes_inited);
4590 mono_class_setup_vtable (klass);
4593 * Emit all the information which is required for creating vtables so
4594 * the runtime does not need to create the MonoMethod structures which
4595 * take up a lot of space.
4598 no_special_static = !mono_class_has_special_static_fields (klass);
4600 /* Check whenever we have enough info to encode the vtable */
4601 cant_encode = FALSE;
4602 for (i = 0; i < klass->vtable_size; ++i) {
4603 MonoMethod *cm = klass->vtable [i];
4605 if (cm && mono_method_signature (cm)->is_inflated && !g_hash_table_lookup (acfg->token_info_hash, cm))
4609 mono_class_has_finalizer (klass);
4611 if (klass->generic_container || cant_encode) {
4612 encode_value (-1, p, &p);
4614 encode_value (klass->vtable_size, p, &p);
4615 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);
4616 if (klass->has_cctor)
4617 encode_method_ref (acfg, mono_class_get_cctor (klass), p, &p);
4618 if (klass->has_finalize)
4619 encode_method_ref (acfg, mono_class_get_finalizer (klass), p, &p);
4621 encode_value (klass->instance_size, p, &p);
4622 encode_value (mono_class_data_size (klass), p, &p);
4623 encode_value (klass->packing_size, p, &p);
4624 encode_value (klass->min_align, p, &p);
4626 for (i = 0; i < klass->vtable_size; ++i) {
4627 MonoMethod *cm = klass->vtable [i];
4630 encode_method_ref (acfg, cm, p, &p);
4632 encode_value (0, p, &p);
4636 acfg->stats.class_info_size += p - buf;
4638 g_assert (p - buf < buf_size);
4639 res = add_to_blob (acfg, buf, p - buf);
4646 get_plt_entry_debug_sym (MonoAotCompile *acfg, MonoJumpInfo *ji, GHashTable *cache)
4648 char *debug_sym = NULL;
4651 case MONO_PATCH_INFO_METHOD:
4652 debug_sym = get_debug_sym (ji->data.method, "plt_", cache);
4654 case MONO_PATCH_INFO_INTERNAL_METHOD:
4655 debug_sym = g_strdup_printf ("plt__jit_icall_%s", ji->data.name);
4657 case MONO_PATCH_INFO_CLASS_INIT:
4658 debug_sym = g_strdup_printf ("plt__class_init_%s", mono_type_get_name (&ji->data.klass->byval_arg));
4659 sanitize_symbol (debug_sym);
4661 case MONO_PATCH_INFO_RGCTX_FETCH:
4662 debug_sym = g_strdup_printf ("plt__rgctx_fetch_%d", acfg->label_generator ++);
4664 case MONO_PATCH_INFO_ICALL_ADDR: {
4665 char *s = get_debug_sym (ji->data.method, "", cache);
4667 debug_sym = g_strdup_printf ("plt__icall_native_%s", s);
4671 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
4672 debug_sym = g_strdup_printf ("plt__jit_icall_native_%s", ji->data.name);
4674 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
4675 debug_sym = g_strdup_printf ("plt__generic_class_init");
4685 * Calls made from AOTed code are routed through a table of jumps similar to the
4686 * ELF PLT (Program Linkage Table). Initially the PLT entries jump to code which transfers
4687 * control to the AOT runtime through a trampoline.
4690 emit_plt (MonoAotCompile *acfg)
4696 sprintf (symbol, "plt");
4698 emit_section_change (acfg, ".text", 0);
4699 emit_alignment (acfg, NACL_SIZE(16, kNaClAlignment));
4700 emit_label (acfg, symbol);
4701 emit_label (acfg, acfg->plt_symbol);
4703 for (i = 0; i < acfg->plt_offset; ++i) {
4704 char *debug_sym = NULL;
4705 MonoPltEntry *plt_entry = NULL;
4710 * The first plt entry is unused.
4714 plt_entry = g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
4719 * If the target is directly callable, alias the plt symbol to point to
4721 * FIXME: Use this to simplify emit_and_reloc_code ().
4722 * FIXME: Avoid the got slot.
4723 * FIXME: Add support to the binary writer.
4725 if (ji && is_direct_callable (acfg, NULL, ji) && !acfg->use_bin_writer) {
4726 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, ji->data.method);
4729 if (acfg->thumb_mixed && !callee_cfg->compile_llvm) {
4730 /* LLVM calls the PLT entries using bl, so emit a stub */
4731 fprintf (acfg->fp, "\n.thumb_func\n");
4732 emit_label (acfg, plt_entry->llvm_symbol);
4733 fprintf (acfg->fp, "bx pc\n");
4734 fprintf (acfg->fp, "nop\n");
4735 fprintf (acfg->fp, ".arm\n");
4736 fprintf (acfg->fp, "b %s\n", callee_cfg->asm_symbol);
4738 fprintf (acfg->fp, "\n.set %s, %s\n", plt_entry->llvm_symbol, callee_cfg->asm_symbol);
4745 debug_sym = plt_entry->debug_sym;
4747 if (acfg->thumb_mixed && !plt_entry->jit_used)
4748 /* Emit only a thumb version */
4751 if (!acfg->thumb_mixed)
4752 emit_label (acfg, plt_entry->llvm_symbol);
4755 if (acfg->need_no_dead_strip)
4756 fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym);
4757 emit_local_symbol (acfg, debug_sym, NULL, TRUE);
4758 emit_label (acfg, debug_sym);
4761 emit_label (acfg, plt_entry->symbol);
4763 arch_emit_plt_entry (acfg, i);
4766 emit_symbol_size (acfg, debug_sym, ".");
4769 if (acfg->thumb_mixed) {
4770 /* Make sure the ARM symbols don't alias the thumb ones */
4771 emit_zero_bytes (acfg, 16);
4774 * Emit a separate set of PLT entries using thumb2 which is called by LLVM generated
4777 for (i = 0; i < acfg->plt_offset; ++i) {
4778 char *debug_sym = NULL;
4779 MonoPltEntry *plt_entry = NULL;
4785 plt_entry = g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
4788 if (ji && is_direct_callable (acfg, NULL, ji) && !acfg->use_bin_writer)
4791 /* Skip plt entries not actually called by LLVM code */
4792 if (!plt_entry->llvm_used)
4795 if (acfg->aot_opts.write_symbols) {
4796 if (plt_entry->debug_sym)
4797 debug_sym = g_strdup_printf ("%s_thumb", plt_entry->debug_sym);
4801 #if defined(__APPLE__)
4802 fprintf (acfg->fp, " .thumb_func %s\n", debug_sym);
4803 fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym);
4805 emit_local_symbol (acfg, debug_sym, NULL, TRUE);
4806 emit_label (acfg, debug_sym);
4808 fprintf (acfg->fp, "\n.thumb_func\n");
4810 emit_label (acfg, plt_entry->llvm_symbol);
4812 arch_emit_llvm_plt_entry (acfg, i);
4815 emit_symbol_size (acfg, debug_sym, ".");
4821 emit_symbol_size (acfg, acfg->plt_symbol, ".");
4823 sprintf (symbol, "plt_end");
4824 emit_label (acfg, symbol);
4827 static G_GNUC_UNUSED void
4828 emit_trampoline (MonoAotCompile *acfg, int got_offset, MonoTrampInfo *info)
4830 char start_symbol [256];
4832 guint32 buf_size, info_offset;
4833 MonoJumpInfo *patch_info;
4844 code_size = info->code_size;
4846 unwind_ops = info->unwind_ops;
4848 #ifdef __native_client_codegen__
4849 mono_nacl_fix_patches (code, ji);
4854 sprintf (start_symbol, "%s", name);
4856 emit_section_change (acfg, ".text", 0);
4857 emit_global (acfg, start_symbol, TRUE);
4858 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
4859 emit_label (acfg, start_symbol);
4861 sprintf (symbol, "%snamed_%s", acfg->temp_prefix, name);
4862 emit_label (acfg, symbol);
4865 * The code should access everything through the GOT, so we pass
4868 emit_and_reloc_code (acfg, NULL, code, code_size, ji, TRUE);
4870 emit_symbol_size (acfg, start_symbol, ".");
4874 /* Sort relocations */
4875 patches = g_ptr_array_new ();
4876 for (patch_info = ji; patch_info; patch_info = patch_info->next)
4877 if (patch_info->type != MONO_PATCH_INFO_NONE)
4878 g_ptr_array_add (patches, patch_info);
4879 g_ptr_array_sort (patches, compare_patches);
4881 buf_size = patches->len * 128 + 128;
4882 buf = g_malloc (buf_size);
4885 encode_patch_list (acfg, patches, patches->len, got_offset, p, &p);
4886 g_assert (p - buf < buf_size);
4888 sprintf (symbol, "%s_p", name);
4890 info_offset = add_to_blob (acfg, buf, p - buf);
4892 emit_section_change (acfg, RODATA_SECT, 0);
4893 emit_global (acfg, symbol, FALSE);
4894 emit_label (acfg, symbol);
4896 emit_int32 (acfg, info_offset);
4898 /* Emit debug info */
4902 sprintf (symbol, "%s", name);
4903 sprintf (symbol2, "%snamed_%s", acfg->temp_prefix, name);
4906 mono_dwarf_writer_emit_trampoline (acfg->dwarf, symbol, symbol2, NULL, NULL, code_size, unwind_ops);
4911 emit_trampolines (MonoAotCompile *acfg)
4914 char end_symbol [256];
4915 int i, tramp_got_offset;
4916 MonoAotTrampoline ntype;
4917 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
4921 if (!acfg->aot_opts.full_aot)
4924 g_assert (acfg->image->assembly);
4926 /* Currently, we emit most trampolines into the mscorlib AOT image. */
4927 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
4928 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
4929 MonoTrampInfo *info;
4932 * Emit the generic trampolines.
4934 * We could save some code by treating the generic trampolines as a wrapper
4935 * method, but that approach has its own complexities, so we choose the simpler
4938 for (tramp_type = 0; tramp_type < MONO_TRAMPOLINE_NUM; ++tramp_type) {
4939 mono_arch_create_generic_trampoline (tramp_type, &info, TRUE);
4940 emit_trampoline (acfg, acfg->got_offset, info);
4943 mono_arch_get_nullified_class_init_trampoline (&info);
4944 emit_trampoline (acfg, acfg->got_offset, info);
4945 #if defined(MONO_ARCH_MONITOR_OBJECT_REG)
4946 mono_arch_create_monitor_enter_trampoline (&info, TRUE);
4947 emit_trampoline (acfg, acfg->got_offset, info);
4948 mono_arch_create_monitor_exit_trampoline (&info, TRUE);
4949 emit_trampoline (acfg, acfg->got_offset, info);
4952 mono_arch_create_generic_class_init_trampoline (&info, TRUE);
4953 emit_trampoline (acfg, acfg->got_offset, info);
4955 /* Emit the exception related code pieces */
4956 mono_arch_get_restore_context (&info, TRUE);
4957 emit_trampoline (acfg, acfg->got_offset, info);
4958 mono_arch_get_call_filter (&info, TRUE);
4959 emit_trampoline (acfg, acfg->got_offset, info);
4960 mono_arch_get_throw_exception (&info, TRUE);
4961 emit_trampoline (acfg, acfg->got_offset, info);
4962 mono_arch_get_rethrow_exception (&info, TRUE);
4963 emit_trampoline (acfg, acfg->got_offset, info);
4964 mono_arch_get_throw_corlib_exception (&info, TRUE);
4965 emit_trampoline (acfg, acfg->got_offset, info);
4967 #if defined(MONO_ARCH_HAVE_GET_TRAMPOLINES)
4969 GSList *l = mono_arch_get_trampolines (TRUE);
4972 MonoTrampInfo *info = l->data;
4974 emit_trampoline (acfg, acfg->got_offset, info);
4980 for (i = 0; i < 128; ++i) {
4983 offset = MONO_RGCTX_SLOT_MAKE_RGCTX (i);
4984 mono_arch_create_rgctx_lazy_fetch_trampoline (offset, &info, TRUE);
4985 emit_trampoline (acfg, acfg->got_offset, info);
4987 offset = MONO_RGCTX_SLOT_MAKE_MRGCTX (i);
4988 mono_arch_create_rgctx_lazy_fetch_trampoline (offset, &info, TRUE);
4989 emit_trampoline (acfg, acfg->got_offset, info);
4995 /* delegate_invoke_impl trampolines */
4996 l = mono_arch_get_delegate_invoke_impls ();
4998 MonoTrampInfo *info = l->data;
5000 emit_trampoline (acfg, acfg->got_offset, info);
5005 #endif /* #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES */
5007 /* Emit trampolines which are numerous */
5010 * These include the following:
5011 * - specific trampolines
5012 * - static rgctx invoke trampolines
5014 * These trampolines have the same code, they are parameterized by GOT
5016 * They are defined in this file, in the arch_... routines instead of
5017 * in tramp-<ARCH>.c, since it is easier to do it this way.
5021 * When running in aot-only mode, we can't create specific trampolines at
5022 * runtime, so we create a few, and save them in the AOT file.
5023 * Normal trampolines embed their argument as a literal inside the
5024 * trampoline code, we can't do that here, so instead we embed an offset
5025 * which needs to be added to the trampoline address to get the address of
5026 * the GOT slot which contains the argument value.
5027 * The generated trampolines jump to the generic trampolines using another
5028 * GOT slot, which will be setup by the AOT loader to point to the
5029 * generic trampoline code of the given type.
5033 * FIXME: Maybe we should use more specific trampolines (i.e. one class init for
5037 emit_section_change (acfg, ".text", 0);
5039 tramp_got_offset = acfg->got_offset;
5041 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype) {
5043 case MONO_AOT_TRAMP_SPECIFIC:
5044 sprintf (symbol, "specific_trampolines");
5046 case MONO_AOT_TRAMP_STATIC_RGCTX:
5047 sprintf (symbol, "static_rgctx_trampolines");
5049 case MONO_AOT_TRAMP_IMT_THUNK:
5050 sprintf (symbol, "imt_thunks");
5053 g_assert_not_reached ();
5056 sprintf (end_symbol, "%s_e", symbol);
5058 if (acfg->aot_opts.write_symbols)
5059 emit_local_symbol (acfg, symbol, end_symbol, TRUE);
5061 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
5062 emit_label (acfg, symbol);
5064 acfg->trampoline_got_offset_base [ntype] = tramp_got_offset;
5066 for (i = 0; i < acfg->num_trampolines [ntype]; ++i) {
5070 case MONO_AOT_TRAMP_SPECIFIC:
5071 arch_emit_specific_trampoline (acfg, tramp_got_offset, &tramp_size);
5072 tramp_got_offset += 2;
5074 case MONO_AOT_TRAMP_STATIC_RGCTX:
5075 arch_emit_static_rgctx_trampoline (acfg, tramp_got_offset, &tramp_size);
5076 tramp_got_offset += 2;
5078 case MONO_AOT_TRAMP_IMT_THUNK:
5079 arch_emit_imt_thunk (acfg, tramp_got_offset, &tramp_size);
5080 tramp_got_offset += 1;
5083 g_assert_not_reached ();
5085 #ifdef __native_client_codegen__
5086 /* align to avoid 32-byte boundary crossings */
5087 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
5090 if (!acfg->trampoline_size [ntype]) {
5091 g_assert (tramp_size);
5092 acfg->trampoline_size [ntype] = tramp_size;
5096 emit_label (acfg, end_symbol);
5099 /* Reserve some entries at the end of the GOT for our use */
5100 acfg->num_trampoline_got_entries = tramp_got_offset - acfg->got_offset;
5103 acfg->got_offset += acfg->num_trampoline_got_entries;
5107 str_begins_with (const char *str1, const char *str2)
5109 int len = strlen (str2);
5110 return strncmp (str1, str2, len) == 0;
5114 mono_aot_readonly_field_override (MonoClassField *field)
5117 for (rdv = readonly_values; rdv; rdv = rdv->next) {
5118 char *p = rdv->name;
5120 len = strlen (field->parent->name_space);
5121 if (strncmp (p, field->parent->name_space, len))
5126 len = strlen (field->parent->name);
5127 if (strncmp (p, field->parent->name, len))
5132 if (strcmp (p, field->name))
5134 switch (rdv->type) {
5136 return &rdv->value.i1;
5138 return &rdv->value.i2;
5140 return &rdv->value.i4;
5149 add_readonly_value (MonoAotOptions *opts, const char *val)
5154 /* the format of val is:
5155 * namespace.typename.fieldname=type/value
5156 * type can be i1 for uint8/int8/boolean, i2 for uint16/int16/char, i4 for uint32/int32
5158 fval = strrchr (val, '/');
5160 fprintf (stderr, "AOT : invalid format for readonly field '%s', missing /.\n", val);
5163 tval = strrchr (val, '=');
5165 fprintf (stderr, "AOT : invalid format for readonly field '%s', missing =.\n", val);
5168 rdv = g_new0 (ReadOnlyValue, 1);
5169 rdv->name = g_malloc0 (tval - val + 1);
5170 memcpy (rdv->name, val, tval - val);
5173 if (strncmp (tval, "i1", 2) == 0) {
5174 rdv->value.i1 = atoi (fval);
5175 rdv->type = MONO_TYPE_I1;
5176 } else if (strncmp (tval, "i2", 2) == 0) {
5177 rdv->value.i2 = atoi (fval);
5178 rdv->type = MONO_TYPE_I2;
5179 } else if (strncmp (tval, "i4", 2) == 0) {
5180 rdv->value.i4 = atoi (fval);
5181 rdv->type = MONO_TYPE_I4;
5183 fprintf (stderr, "AOT : unsupported type for readonly field '%s'.\n", tval);
5186 rdv->next = readonly_values;
5187 readonly_values = rdv;
5191 mono_aot_parse_options (const char *aot_options, MonoAotOptions *opts)
5193 gchar **args, **ptr;
5195 args = g_strsplit (aot_options ? aot_options : "", ",", -1);
5196 for (ptr = args; ptr && *ptr; ptr ++) {
5197 const char *arg = *ptr;
5199 if (str_begins_with (arg, "outfile=")) {
5200 opts->outfile = g_strdup (arg + strlen ("outfile="));
5201 } else if (str_begins_with (arg, "save-temps")) {
5202 opts->save_temps = TRUE;
5203 } else if (str_begins_with (arg, "keep-temps")) {
5204 opts->save_temps = TRUE;
5205 } else if (str_begins_with (arg, "write-symbols")) {
5206 opts->write_symbols = TRUE;
5207 } else if (str_begins_with (arg, "no-write-symbols")) {
5208 opts->write_symbols = FALSE;
5209 } else if (str_begins_with (arg, "metadata-only")) {
5210 opts->metadata_only = TRUE;
5211 } else if (str_begins_with (arg, "bind-to-runtime-version")) {
5212 opts->bind_to_runtime_version = TRUE;
5213 } else if (str_begins_with (arg, "full")) {
5214 opts->full_aot = TRUE;
5215 } else if (str_begins_with (arg, "threads=")) {
5216 opts->nthreads = atoi (arg + strlen ("threads="));
5217 } else if (str_begins_with (arg, "static")) {
5218 opts->static_link = TRUE;
5219 opts->no_dlsym = TRUE;
5220 } else if (str_begins_with (arg, "asmonly")) {
5221 opts->asm_only = TRUE;
5222 } else if (str_begins_with (arg, "asmwriter")) {
5223 opts->asm_writer = TRUE;
5224 } else if (str_begins_with (arg, "nodebug")) {
5225 opts->nodebug = TRUE;
5226 } else if (str_begins_with (arg, "ntrampolines=")) {
5227 opts->ntrampolines = atoi (arg + strlen ("ntrampolines="));
5228 } else if (str_begins_with (arg, "nrgctx-trampolines=")) {
5229 opts->nrgctx_trampolines = atoi (arg + strlen ("nrgctx-trampolines="));
5230 } else if (str_begins_with (arg, "nimt-trampolines=")) {
5231 opts->nimt_trampolines = atoi (arg + strlen ("nimt-trampolines="));
5232 } else if (str_begins_with (arg, "autoreg")) {
5233 opts->autoreg = TRUE;
5234 } else if (str_begins_with (arg, "tool-prefix=")) {
5235 opts->tool_prefix = g_strdup (arg + strlen ("tool-prefix="));
5236 } else if (str_begins_with (arg, "soft-debug")) {
5237 opts->soft_debug = TRUE;
5238 } else if (str_begins_with (arg, "direct-pinvoke")) {
5239 opts->direct_pinvoke = TRUE;
5240 } else if (str_begins_with (arg, "direct-icalls")) {
5241 opts->direct_icalls = TRUE;
5242 } else if (str_begins_with (arg, "print-skipped")) {
5243 opts->print_skipped_methods = TRUE;
5244 } else if (str_begins_with (arg, "stats")) {
5246 } else if (str_begins_with (arg, "log-generics")) {
5247 opts->log_generics = TRUE;
5248 } else if (str_begins_with (arg, "mtriple=")) {
5249 opts->mtriple = g_strdup (arg + strlen ("mtriple="));
5250 } else if (str_begins_with (arg, "llvm-path=")) {
5251 opts->llvm_path = g_strdup (arg + strlen ("llvm-path="));
5252 } else if (str_begins_with (arg, "readonly-value=")) {
5253 add_readonly_value (opts, arg + strlen ("readonly-value="));
5254 } else if (str_begins_with (arg, "info")) {
5255 printf ("AOT target setup: %s.\n", AOT_TARGET_STR);
5257 } else if (str_begins_with (arg, "help") || str_begins_with (arg, "?")) {
5258 printf ("Supported options for --aot:\n");
5259 printf (" outfile=\n");
5260 printf (" save-temps\n");
5261 printf (" keep-temps\n");
5262 printf (" write-symbols\n");
5263 printf (" metadata-only\n");
5264 printf (" bind-to-runtime-version\n");
5266 printf (" threads=\n");
5267 printf (" static\n");
5268 printf (" asmonly\n");
5269 printf (" asmwriter\n");
5270 printf (" nodebug\n");
5271 printf (" ntrampolines=\n");
5272 printf (" nrgctx-trampolines=\n");
5273 printf (" nimt-trampolines=\n");
5274 printf (" autoreg\n");
5275 printf (" tool-prefix=\n");
5276 printf (" readonly-value=\n");
5277 printf (" soft-debug\n");
5278 printf (" print-skipped\n");
5279 printf (" stats\n");
5281 printf (" help/?\n");
5284 fprintf (stderr, "AOT : Unknown argument '%s'.\n", arg);
5293 add_token_info_hash (gpointer key, gpointer value, gpointer user_data)
5295 MonoMethod *method = (MonoMethod*)key;
5296 MonoJumpInfoToken *ji = (MonoJumpInfoToken*)value;
5297 MonoJumpInfoToken *new_ji = g_new0 (MonoJumpInfoToken, 1);
5298 MonoAotCompile *acfg = user_data;
5300 new_ji->image = ji->image;
5301 new_ji->token = ji->token;
5302 g_hash_table_insert (acfg->token_info_hash, method, new_ji);
5306 can_encode_class (MonoAotCompile *acfg, MonoClass *klass)
5308 if (klass->type_token)
5310 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR) || (klass->byval_arg.type == MONO_TYPE_PTR))
5313 return can_encode_class (acfg, klass->element_class);
5318 can_encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
5320 switch (patch_info->type) {
5321 case MONO_PATCH_INFO_METHOD:
5322 case MONO_PATCH_INFO_METHODCONST: {
5323 MonoMethod *method = patch_info->data.method;
5325 if (method->wrapper_type) {
5326 switch (method->wrapper_type) {
5327 case MONO_WRAPPER_NONE:
5328 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
5329 case MONO_WRAPPER_XDOMAIN_INVOKE:
5330 case MONO_WRAPPER_STFLD:
5331 case MONO_WRAPPER_LDFLD:
5332 case MONO_WRAPPER_LDFLDA:
5333 case MONO_WRAPPER_LDFLD_REMOTE:
5334 case MONO_WRAPPER_STFLD_REMOTE:
5335 case MONO_WRAPPER_STELEMREF:
5336 case MONO_WRAPPER_ISINST:
5337 case MONO_WRAPPER_PROXY_ISINST:
5338 case MONO_WRAPPER_ALLOC:
5339 case MONO_WRAPPER_REMOTING_INVOKE:
5340 case MONO_WRAPPER_UNKNOWN:
5341 case MONO_WRAPPER_WRITE_BARRIER:
5343 case MONO_WRAPPER_MANAGED_TO_MANAGED:
5344 case MONO_WRAPPER_CASTCLASS: {
5345 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
5354 //printf ("Skip (wrapper call): %d -> %s\n", patch_info->type, mono_method_full_name (patch_info->data.method, TRUE));
5358 if (!method->token) {
5359 /* The method is part of a constructed type like Int[,].Set (). */
5360 if (!g_hash_table_lookup (acfg->token_info_hash, method)) {
5361 if (method->klass->rank)
5369 case MONO_PATCH_INFO_VTABLE:
5370 case MONO_PATCH_INFO_CLASS_INIT:
5371 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
5372 case MONO_PATCH_INFO_CLASS:
5373 case MONO_PATCH_INFO_IID:
5374 case MONO_PATCH_INFO_ADJUSTED_IID:
5375 if (!can_encode_class (acfg, patch_info->data.klass)) {
5376 //printf ("Skip: %s\n", mono_type_full_name (&patch_info->data.klass->byval_arg));
5380 case MONO_PATCH_INFO_RGCTX_FETCH: {
5381 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
5383 if (!can_encode_patch (acfg, entry->data))
5397 * AOT compile a given method.
5398 * This function might be called by multiple threads, so it must be thread-safe.
5401 compile_method (MonoAotCompile *acfg, MonoMethod *method)
5404 MonoJumpInfo *patch_info;
5407 MonoMethod *wrapped;
5409 if (acfg->aot_opts.metadata_only)
5412 mono_acfg_lock (acfg);
5413 index = get_method_index (acfg, method);
5414 mono_acfg_unlock (acfg);
5416 /* fixme: maybe we can also precompile wrapper methods */
5417 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
5418 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
5419 (method->flags & METHOD_ATTRIBUTE_ABSTRACT)) {
5420 //printf ("Skip (impossible): %s\n", mono_method_full_name (method, TRUE));
5424 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
5427 wrapped = mono_marshal_method_from_wrapper (method);
5428 if (wrapped && (wrapped->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && wrapped->is_generic)
5429 // FIXME: The wrapper should be generic too, but it is not
5432 if (method->wrapper_type == MONO_WRAPPER_COMINTEROP)
5435 InterlockedIncrement (&acfg->stats.mcount);
5438 if (method->is_generic || method->klass->generic_container) {
5439 InterlockedIncrement (&acfg->stats.genericcount);
5444 //acfg->aot_opts.print_skipped_methods = TRUE;
5447 * Since these methods are the only ones which are compiled with
5448 * AOT support, and they are not used by runtime startup/shutdown code,
5449 * the runtime will not see AOT methods during AOT compilation,so it
5450 * does not need to support them by creating a fake GOT etc.
5452 cfg = mini_method_compile (method, acfg->opts, mono_get_root_domain (), FALSE, TRUE, 0);
5453 if (cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
5454 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
5455 InterlockedIncrement (&acfg->stats.genericcount);
5458 if (cfg->exception_type != MONO_EXCEPTION_NONE) {
5459 if (acfg->aot_opts.print_skipped_methods)
5460 printf ("Skip (JIT failure): %s\n", mono_method_full_name (method, TRUE));
5461 /* Let the exception happen at runtime */
5465 if (cfg->disable_aot) {
5466 if (acfg->aot_opts.print_skipped_methods)
5467 printf ("Skip (disabled): %s\n", mono_method_full_name (method, TRUE));
5468 InterlockedIncrement (&acfg->stats.ocount);
5469 mono_destroy_compile (cfg);
5473 /* Nullify patches which need no aot processing */
5474 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5475 switch (patch_info->type) {
5476 case MONO_PATCH_INFO_LABEL:
5477 case MONO_PATCH_INFO_BB:
5478 patch_info->type = MONO_PATCH_INFO_NONE;
5485 /* Collect method->token associations from the cfg */
5486 mono_acfg_lock (acfg);
5487 g_hash_table_foreach (cfg->token_info_hash, add_token_info_hash, acfg);
5488 mono_acfg_unlock (acfg);
5491 * Check for absolute addresses.
5494 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5495 switch (patch_info->type) {
5496 case MONO_PATCH_INFO_ABS:
5497 /* unable to handle this */
5506 if (acfg->aot_opts.print_skipped_methods)
5507 printf ("Skip (abs call): %s\n", mono_method_full_name (method, TRUE));
5508 InterlockedIncrement (&acfg->stats.abscount);
5509 mono_destroy_compile (cfg);
5513 /* Lock for the rest of the code */
5514 mono_acfg_lock (acfg);
5517 * Check for methods/klasses we can't encode.
5520 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5521 if (!can_encode_patch (acfg, patch_info))
5526 if (acfg->aot_opts.print_skipped_methods)
5527 printf ("Skip (patches): %s\n", mono_method_full_name (method, TRUE));
5528 acfg->stats.ocount++;
5529 mono_destroy_compile (cfg);
5530 mono_acfg_unlock (acfg);
5534 /* Adds generic instances referenced by this method */
5536 * The depth is used to avoid infinite loops when generic virtual recursion is
5539 depth = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_depth, method));
5541 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5542 switch (patch_info->type) {
5543 case MONO_PATCH_INFO_METHOD: {
5544 MonoMethod *m = patch_info->data.method;
5545 if (m->is_inflated) {
5546 if (!(mono_class_generic_sharing_enabled (m->klass) &&
5547 mono_method_is_generic_sharable_impl (m, FALSE)) &&
5548 !method_has_type_vars (m)) {
5549 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
5550 if (acfg->aot_opts.full_aot)
5551 add_extra_method_with_depth (acfg, mono_marshal_get_native_wrapper (m, TRUE, TRUE), depth + 1);
5553 add_extra_method_with_depth (acfg, m, depth + 1);
5554 add_types_from_method_header (acfg, m);
5557 add_generic_class_with_depth (acfg, m->klass, depth + 5, "method");
5559 if (m->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && !strcmp (m->name, "ElementAddr"))
5560 add_extra_method_with_depth (acfg, m, depth + 1);
5563 case MONO_PATCH_INFO_VTABLE: {
5564 MonoClass *klass = patch_info->data.klass;
5566 if (klass->generic_class && !mono_generic_context_is_sharable (&klass->generic_class->context, FALSE))
5567 add_generic_class_with_depth (acfg, klass, depth + 5, "vtable");
5570 case MONO_PATCH_INFO_SFLDA: {
5571 MonoClass *klass = patch_info->data.field->parent;
5573 /* The .cctor needs to run at runtime. */
5574 if (klass->generic_class && !mono_generic_context_is_sharable (&klass->generic_class->context, FALSE) && mono_class_get_cctor (klass))
5575 add_extra_method_with_depth (acfg, mono_class_get_cctor (klass), depth + 1);
5584 /* Determine whenever the method has GOT slots */
5585 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5586 switch (patch_info->type) {
5587 case MONO_PATCH_INFO_GOT_OFFSET:
5588 case MONO_PATCH_INFO_NONE:
5589 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
5591 case MONO_PATCH_INFO_IMAGE:
5592 /* The assembly is stored in GOT slot 0 */
5593 if (patch_info->data.image != acfg->image)
5594 cfg->has_got_slots = TRUE;
5597 if (!is_plt_patch (patch_info))
5598 cfg->has_got_slots = TRUE;
5603 if (!cfg->has_got_slots)
5604 InterlockedIncrement (&acfg->stats.methods_without_got_slots);
5607 * FIXME: Instead of this mess, allocate the patches from the aot mempool.
5609 /* Make a copy of the patch info which is in the mempool */
5611 MonoJumpInfo *patches = NULL, *patches_end = NULL;
5613 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5614 MonoJumpInfo *new_patch_info = mono_patch_info_dup_mp (acfg->mempool, patch_info);
5617 patches = new_patch_info;
5619 patches_end->next = new_patch_info;
5620 patches_end = new_patch_info;
5622 cfg->patch_info = patches;
5624 /* Make a copy of the unwind info */
5626 GSList *l, *unwind_ops;
5630 for (l = cfg->unwind_ops; l; l = l->next) {
5631 op = mono_mempool_alloc (acfg->mempool, sizeof (MonoUnwindOp));
5632 memcpy (op, l->data, sizeof (MonoUnwindOp));
5633 unwind_ops = g_slist_prepend_mempool (acfg->mempool, unwind_ops, op);
5635 cfg->unwind_ops = g_slist_reverse (unwind_ops);
5637 /* Make a copy of the argument/local info */
5639 MonoInst **args, **locals;
5640 MonoMethodSignature *sig;
5641 MonoMethodHeader *header;
5644 sig = mono_method_signature (method);
5645 args = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * (sig->param_count + sig->hasthis));
5646 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
5647 args [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
5648 memcpy (args [i], cfg->args [i], sizeof (MonoInst));
5652 header = mono_method_get_header (method);
5653 locals = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * header->num_locals);
5654 for (i = 0; i < header->num_locals; ++i) {
5655 locals [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
5656 memcpy (locals [i], cfg->locals [i], sizeof (MonoInst));
5658 cfg->locals = locals;
5661 /* Free some fields used by cfg to conserve memory */
5662 mono_mempool_destroy (cfg->mempool);
5663 cfg->mempool = NULL;
5664 g_free (cfg->varinfo);
5665 cfg->varinfo = NULL;
5669 mono_regstate_free (cfg->rs);
5673 //printf ("Compile: %s\n", mono_method_full_name (method, TRUE));
5675 while (index >= acfg->cfgs_size) {
5676 MonoCompile **new_cfgs;
5679 new_size = acfg->cfgs_size * 2;
5680 new_cfgs = g_new0 (MonoCompile*, new_size);
5681 memcpy (new_cfgs, acfg->cfgs, sizeof (MonoCompile*) * acfg->cfgs_size);
5682 g_free (acfg->cfgs);
5683 acfg->cfgs = new_cfgs;
5684 acfg->cfgs_size = new_size;
5686 acfg->cfgs [index] = cfg;
5688 g_hash_table_insert (acfg->method_to_cfg, cfg->orig_method, cfg);
5691 if (cfg->orig_method->wrapper_type)
5692 g_ptr_array_add (acfg->extra_methods, cfg->orig_method);
5695 mono_acfg_unlock (acfg);
5697 InterlockedIncrement (&acfg->stats.ccount);
5701 compile_thread_main (gpointer *user_data)
5703 MonoDomain *domain = user_data [0];
5704 MonoAotCompile *acfg = user_data [1];
5705 GPtrArray *methods = user_data [2];
5708 mono_thread_attach (domain);
5710 for (i = 0; i < methods->len; ++i)
5711 compile_method (acfg, g_ptr_array_index (methods, i));
5715 load_profile_files (MonoAotCompile *acfg)
5719 int file_index, res, method_index, i;
5722 GList *unordered, *l;
5727 tmp = g_strdup_printf ("%s/.mono/aot-profile-data/%s-%d", g_get_home_dir (), acfg->image->assembly_name, file_index);
5729 if (!g_file_test (tmp, G_FILE_TEST_IS_REGULAR)) {
5734 infile = fopen (tmp, "r");
5737 printf ("Using profile data file '%s'\n", tmp);
5742 res = fscanf (infile, "%32s\n", ver);
5743 if ((res != 1) || strcmp (ver, "#VER:2") != 0) {
5744 printf ("Profile file has wrong version or invalid.\n");
5751 MonoMethodDesc *desc;
5754 if (fgets (name, 1023, infile) == NULL)
5757 /* Kill the newline */
5758 if (strlen (name) > 0)
5759 name [strlen (name) - 1] = '\0';
5761 desc = mono_method_desc_new (name, TRUE);
5763 method = mono_method_desc_search_in_image (desc, acfg->image);
5765 if (method && mono_method_get_token (method)) {
5766 token = mono_method_get_token (method);
5767 method_index = mono_metadata_token_index (token) - 1;
5770 for (i = 0; i < acfg->method_order->len; ++i) {
5771 if (g_ptr_array_index (acfg->method_order, i) == GUINT_TO_POINTER (method_index)) {
5777 g_ptr_array_add (acfg->method_order, GUINT_TO_POINTER (method_index));
5779 //printf ("No method found matching '%s'.\n", name);
5785 /* Add missing methods */
5787 for (method_index = 0; method_index < acfg->image->tables [MONO_TABLE_METHOD].rows; ++method_index) {
5789 for (i = 0; i < acfg->method_order->len; ++i) {
5790 if (g_ptr_array_index (acfg->method_order, i) == GUINT_TO_POINTER (method_index)) {
5796 unordered = g_list_prepend (unordered, GUINT_TO_POINTER (method_index));
5798 unordered = g_list_reverse (unordered);
5799 for (l = unordered; l; l = l->next)
5800 g_ptr_array_add (acfg->method_order, l->data);
5803 /* Used by the LLVM backend */
5805 mono_aot_get_got_offset (MonoJumpInfo *ji)
5807 return get_got_offset (llvm_acfg, ji);
5811 mono_aot_get_method_name (MonoCompile *cfg)
5813 if (llvm_acfg->aot_opts.static_link)
5814 /* Include the assembly name too to avoid duplicate symbol errors */
5815 return g_strdup_printf ("%s_%s", llvm_acfg->assembly_name_sym, get_debug_sym (cfg->orig_method, "", llvm_acfg->method_label_hash));
5817 return get_debug_sym (cfg->orig_method, "", llvm_acfg->method_label_hash);
5821 mono_aot_get_plt_symbol (MonoJumpInfoType type, gconstpointer data)
5823 MonoJumpInfo *ji = mono_mempool_alloc (llvm_acfg->mempool, sizeof (MonoJumpInfo));
5824 MonoPltEntry *plt_entry;
5827 ji->data.target = data;
5829 if (!can_encode_patch (llvm_acfg, ji))
5832 plt_entry = get_plt_entry (llvm_acfg, ji);
5833 plt_entry->llvm_used = TRUE;
5835 #if defined(__APPLE__)
5836 return g_strdup_printf (plt_entry->llvm_symbol + strlen (llvm_acfg->llvm_label_prefix));
5838 return g_strdup_printf (plt_entry->llvm_symbol);
5843 mono_aot_patch_info_dup (MonoJumpInfo* ji)
5847 mono_acfg_lock (llvm_acfg);
5848 res = mono_patch_info_dup_mp (llvm_acfg->mempool, ji);
5849 mono_acfg_unlock (llvm_acfg);
5859 * Emit the LLVM code into an LLVM bytecode file, and compile it using the LLVM
5863 emit_llvm_file (MonoAotCompile *acfg)
5865 char *command, *opts;
5867 MonoJumpInfo *patch_info;
5870 * When using LLVM, we let llvm emit the got since the LLVM IL needs to refer
5874 /* Compute the final size of the got */
5875 for (i = 0; i < acfg->nmethods; ++i) {
5876 if (acfg->cfgs [i]) {
5877 for (patch_info = acfg->cfgs [i]->patch_info; patch_info; patch_info = patch_info->next) {
5878 if (patch_info->type != MONO_PATCH_INFO_NONE) {
5879 if (!is_plt_patch (patch_info))
5880 get_got_offset (acfg, patch_info);
5882 get_plt_entry (acfg, patch_info);
5888 acfg->final_got_size = acfg->got_offset + acfg->plt_offset;
5890 if (acfg->aot_opts.full_aot) {
5894 * Need to add the got entries used by the trampolines.
5895 * This is only a conservative approximation.
5897 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
5898 /* For the generic + rgctx trampolines */
5899 acfg->final_got_size += 200;
5900 /* For the specific trampolines */
5901 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype)
5902 acfg->final_got_size += acfg->num_trampolines [ntype] * 2;
5907 mono_llvm_emit_aot_module ("temp.bc", acfg->final_got_size);
5910 * FIXME: Experiment with adding optimizations, the -std-compile-opts set takes
5911 * a lot of time, and doesn't seem to save much space.
5912 * The following optimizations cannot be enabled:
5914 * - 'jump-threading' changes our blockaddress references to int constants.
5915 * - 'basiccg' fails because it contains:
5916 * if (CS && !isa<IntrinsicInst>(II)) {
5917 * and isa<IntrinsicInst> is false for invokes to intrinsics (iltests.exe).
5918 * - 'prune-eh' and 'functionattrs' depend on 'basiccg'.
5919 * The opt list below was produced by taking the output of:
5920 * llvm-as < /dev/null | opt -O2 -disable-output -debug-pass=Arguments
5921 * then removing tailcallelim + the global opts, and adding a second gvn.
5923 opts = g_strdup ("-instcombine -simplifycfg");
5924 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");
5926 command = g_strdup_printf ("%sopt -f %s -o temp.opt.bc temp.bc", acfg->aot_opts.llvm_path, opts);
5927 printf ("Executing opt: %s\n", command);
5928 if (system (command) != 0) {
5934 if (!acfg->llc_args)
5935 acfg->llc_args = g_string_new ("");
5937 /* Verbose asm slows down llc greatly */
5938 g_string_append (acfg->llc_args, " -asm-verbose=false");
5940 if (acfg->aot_opts.mtriple)
5941 g_string_append_printf (acfg->llc_args, " -mtriple=%s", acfg->aot_opts.mtriple);
5943 if (llvm_acfg->aot_opts.static_link)
5944 g_string_append_printf (acfg->llc_args, " -relocation-model=static");
5946 g_string_append_printf (acfg->llc_args, " -relocation-model=pic");
5947 unlink (acfg->tmpfname);
5949 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);
5951 printf ("Executing llc: %s\n", command);
5953 if (system (command) != 0) {
5960 emit_code (MonoAotCompile *acfg)
5962 int oindex, i, prev_index;
5964 char end_symbol [256];
5966 #if defined(TARGET_POWERPC64)
5967 sprintf (symbol, ".Lgot_addr");
5968 emit_section_change (acfg, ".text", 0);
5969 emit_alignment (acfg, 8);
5970 emit_label (acfg, symbol);
5971 emit_pointer (acfg, acfg->got_symbol);
5975 * This global symbol is used to compute the address of each method using the
5976 * code_offsets array. It is also used to compute the memory ranges occupied by
5977 * AOT code, so it must be equal to the address of the first emitted method.
5979 sprintf (symbol, "methods");
5980 emit_section_change (acfg, ".text", 0);
5981 emit_alignment (acfg, 8);
5983 for (i = 0; i < acfg->nmethods; ++i) {
5984 if (acfg->cfgs [i] && acfg->cfgs [i]->compile_llvm) {
5985 fprintf (acfg->fp, "\n.set methods, %s\n", acfg->cfgs [i]->asm_symbol);
5989 if (i == acfg->nmethods)
5990 /* No LLVM compiled methods */
5991 emit_label (acfg, symbol);
5993 emit_label (acfg, symbol);
5997 * Emit some padding so the local symbol for the first method doesn't have the
5998 * same address as 'methods'.
6000 #if defined(__default_codegen__)
6001 emit_zero_bytes (acfg, 16);
6002 #elif defined(__native_client_codegen__)
6004 const int kPaddingSize = 16;
6005 guint8 pad_buffer[kPaddingSize];
6006 mono_arch_nacl_pad (pad_buffer, kPaddingSize);
6007 emit_bytes (acfg, pad_buffer, kPaddingSize);
6011 for (oindex = 0; oindex < acfg->method_order->len; ++oindex) {
6015 i = GPOINTER_TO_UINT (g_ptr_array_index (acfg->method_order, oindex));
6017 cfg = acfg->cfgs [i];
6022 method = cfg->orig_method;
6024 /* Emit unbox trampoline */
6025 if (acfg->aot_opts.full_aot && cfg->orig_method->klass->valuetype && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
6026 sprintf (symbol, "ut_%d", get_method_index (acfg, method));
6028 emit_section_change (acfg, ".text", 0);
6029 #ifdef __native_client_codegen__
6030 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
6033 if (acfg->thumb_mixed && cfg->compile_llvm)
6034 fprintf (acfg->fp, "\n.thumb_func\n");
6036 emit_label (acfg, symbol);
6038 arch_emit_unbox_trampoline (acfg, cfg, cfg->orig_method, cfg->asm_symbol);
6041 if (cfg->compile_llvm)
6042 acfg->stats.llvm_count ++;
6044 emit_method_code (acfg, cfg);
6047 sprintf (symbol, "methods_end");
6048 emit_section_change (acfg, ".text", 0);
6049 emit_alignment (acfg, 8);
6050 emit_label (acfg, symbol);
6053 * Add .no_dead_strip directives for all LLVM methods to prevent the OSX linker
6054 * from optimizing them away, since it doesn't see that code_offsets references them.
6055 * JITted methods don't need this since they are referenced using assembler local
6057 * FIXME: This is why write-symbols doesn't work on OSX ?
6059 if (acfg->llvm && acfg->need_no_dead_strip) {
6060 fprintf (acfg->fp, "\n");
6061 for (i = 0; i < acfg->nmethods; ++i) {
6062 if (acfg->cfgs [i] && acfg->cfgs [i]->compile_llvm)
6063 fprintf (acfg->fp, ".no_dead_strip %s\n", acfg->cfgs [i]->asm_symbol);
6067 sprintf (symbol, "code_offsets");
6068 emit_section_change (acfg, RODATA_SECT, 1);
6069 emit_alignment (acfg, 8);
6070 emit_label (acfg, symbol);
6072 acfg->stats.offsets_size += acfg->nmethods * 4;
6074 sprintf (end_symbol, "methods");
6075 for (i = 0; i < acfg->nmethods; ++i) {
6076 if (acfg->cfgs [i]) {
6077 emit_symbol_diff (acfg, acfg->cfgs [i]->asm_symbol, end_symbol, 0);
6079 emit_int32 (acfg, 0xffffffff);
6084 /* Emit a sorted table mapping methods to their unbox trampolines */
6085 sprintf (symbol, "unbox_trampolines");
6086 emit_section_change (acfg, RODATA_SECT, 1);
6087 emit_alignment (acfg, 8);
6088 emit_label (acfg, symbol);
6090 sprintf (end_symbol, "methods");
6092 for (i = 0; i < acfg->nmethods; ++i) {
6097 cfg = acfg->cfgs [i];
6101 method = cfg->orig_method;
6103 if (acfg->aot_opts.full_aot && cfg->orig_method->klass->valuetype && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
6104 index = get_method_index (acfg, method);
6105 sprintf (symbol, "ut_%d", index);
6107 emit_int32 (acfg, index);
6108 emit_symbol_diff (acfg, symbol, end_symbol, 0);
6109 /* Make sure the table is sorted by index */
6110 g_assert (index > prev_index);
6114 sprintf (symbol, "unbox_trampolines_end");
6115 emit_label (acfg, symbol);
6119 emit_info (MonoAotCompile *acfg)
6125 offsets = g_new0 (gint32, acfg->nmethods);
6127 for (oindex = 0; oindex < acfg->method_order->len; ++oindex) {
6128 i = GPOINTER_TO_UINT (g_ptr_array_index (acfg->method_order, oindex));
6130 if (acfg->cfgs [i]) {
6131 emit_method_info (acfg, acfg->cfgs [i]);
6132 offsets [i] = acfg->cfgs [i]->method_info_offset;
6138 sprintf (symbol, "method_info_offsets");
6139 emit_section_change (acfg, RODATA_SECT, 1);
6140 emit_alignment (acfg, 8);
6141 emit_label (acfg, symbol);
6143 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->nmethods, 10, offsets);
6148 #endif /* #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT) */
6150 #define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
6151 #define mix(a,b,c) { \
6152 a -= c; a ^= rot(c, 4); c += b; \
6153 b -= a; b ^= rot(a, 6); a += c; \
6154 c -= b; c ^= rot(b, 8); b += a; \
6155 a -= c; a ^= rot(c,16); c += b; \
6156 b -= a; b ^= rot(a,19); a += c; \
6157 c -= b; c ^= rot(b, 4); b += a; \
6159 #define final(a,b,c) { \
6160 c ^= b; c -= rot(b,14); \
6161 a ^= c; a -= rot(c,11); \
6162 b ^= a; b -= rot(a,25); \
6163 c ^= b; c -= rot(b,16); \
6164 a ^= c; a -= rot(c,4); \
6165 b ^= a; b -= rot(a,14); \
6166 c ^= b; c -= rot(b,24); \
6170 mono_aot_type_hash (MonoType *t1)
6172 guint hash = t1->type;
6174 hash |= t1->byref << 6; /* do not collide with t1->type values */
6176 case MONO_TYPE_VALUETYPE:
6177 case MONO_TYPE_CLASS:
6178 case MONO_TYPE_SZARRAY:
6179 /* check if the distribution is good enough */
6180 return ((hash << 5) - hash) ^ mono_metadata_str_hash (t1->data.klass->name);
6182 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
6183 case MONO_TYPE_ARRAY:
6184 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
6185 case MONO_TYPE_GENERICINST:
6186 return ((hash << 5) - hash) ^ 0;
6193 * mono_aot_method_hash:
6195 * Return a hash code for methods which only depends on metadata.
6198 mono_aot_method_hash (MonoMethod *method)
6200 MonoMethodSignature *sig;
6204 guint32 *hashes_start, *hashes;
6206 MonoGenericInst *ginst = NULL;
6208 /* Similar to the hash in mono_method_get_imt_slot () */
6210 sig = mono_method_signature (method);
6212 if (method->is_inflated)
6213 ginst = ((MonoMethodInflated*)method)->context.method_inst;
6215 hashes_count = sig->param_count + 5 + (ginst ? ginst->type_argc : 0);
6216 hashes_start = g_malloc0 (hashes_count * sizeof (guint32));
6217 hashes = hashes_start;
6219 /* Some wrappers are assigned to random classes */
6220 if (!method->wrapper_type || method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
6221 klass = method->klass;
6223 klass = mono_defaults.object_class;
6225 if (!method->wrapper_type) {
6226 char *full_name = mono_type_full_name (&klass->byval_arg);
6228 hashes [0] = mono_metadata_str_hash (full_name);
6232 hashes [0] = mono_metadata_str_hash (klass->name);
6233 hashes [1] = mono_metadata_str_hash (klass->name_space);
6235 if (method->wrapper_type == MONO_WRAPPER_STFLD || method->wrapper_type == MONO_WRAPPER_LDFLD || method->wrapper_type == MONO_WRAPPER_LDFLDA)
6236 /* The method name includes a stringified pointer */
6239 hashes [2] = mono_metadata_str_hash (method->name);
6240 hashes [3] = method->wrapper_type;
6241 hashes [4] = mono_aot_type_hash (sig->ret);
6243 for (i = 0; i < sig->param_count; i++) {
6244 hashes [hindex ++] = mono_aot_type_hash (sig->params [i]);
6247 for (i = 0; i < ginst->type_argc; ++i)
6248 hashes [hindex ++] = mono_aot_type_hash (ginst->type_argv [i]);
6250 g_assert (hindex == hashes_count);
6252 /* Setup internal state */
6253 a = b = c = 0xdeadbeef + (((guint32)hashes_count)<<2);
6255 /* Handle most of the hashes */
6256 while (hashes_count > 3) {
6265 /* Handle the last 3 hashes (all the case statements fall through) */
6266 switch (hashes_count) {
6267 case 3 : c += hashes [2];
6268 case 2 : b += hashes [1];
6269 case 1 : a += hashes [0];
6271 case 0: /* nothing left to add */
6275 free (hashes_start);
6284 * mono_aot_wrapper_name:
6286 * Return a string which uniqely identifies the given wrapper method.
6289 mono_aot_wrapper_name (MonoMethod *method)
6291 char *name, *tmpsig, *klass_desc;
6293 tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
6295 switch (method->wrapper_type) {
6296 case MONO_WRAPPER_RUNTIME_INVOKE:
6297 if (!strcmp (method->name, "runtime_invoke_dynamic"))
6298 name = g_strdup_printf ("(wrapper runtime-invoke-dynamic)");
6300 name = g_strdup_printf ("%s (%s)", method->name, tmpsig);
6303 klass_desc = mono_type_full_name (&method->klass->byval_arg);
6304 name = g_strdup_printf ("%s:%s (%s)", klass_desc, method->name, tmpsig);
6305 g_free (klass_desc);
6315 * mono_aot_get_array_helper_from_wrapper;
6317 * Get the helper method in Array called by an array wrapper method.
6320 mono_aot_get_array_helper_from_wrapper (MonoMethod *method)
6324 MonoGenericContext ctx;
6325 MonoType *args [16];
6326 char *mname, *iname, *s, *s2, *helper_name = NULL;
6328 prefix = "System.Collections.Generic";
6329 s = g_strdup_printf ("%s", method->name + strlen (prefix) + 1);
6330 s2 = strstr (s, "`1.");
6336 //printf ("X: %s %s\n", iname, mname);
6338 if (!strcmp (iname, "IList"))
6339 helper_name = g_strdup_printf ("InternalArray__%s", mname);
6341 helper_name = g_strdup_printf ("InternalArray__%s_%s", iname, mname);
6342 m = mono_class_get_method_from_name (mono_defaults.array_class, helper_name, mono_method_signature (method)->param_count);
6344 g_free (helper_name);
6347 if (m->is_generic) {
6348 memset (&ctx, 0, sizeof (ctx));
6349 args [0] = &method->klass->element_class->byval_arg;
6350 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
6351 m = mono_class_inflate_generic_method (m, &ctx);
6357 #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
6359 typedef struct HashEntry {
6360 guint32 key, value, index;
6361 struct HashEntry *next;
6365 * emit_extra_methods:
6367 * Emit methods which are not in the METHOD table, like wrappers.
6370 emit_extra_methods (MonoAotCompile *acfg)
6372 int i, table_size, buf_size;
6375 guint32 *info_offsets;
6378 HashEntry *entry, *new_entry;
6379 int nmethods, max_chain_length;
6382 info_offsets = g_new0 (guint32, acfg->extra_methods->len);
6384 /* Emit method info */
6386 for (i = 0; i < acfg->extra_methods->len; ++i) {
6387 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
6388 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
6394 p = buf = g_malloc (buf_size);
6398 method = cfg->method_to_register;
6400 encode_method_ref (acfg, method, p, &p);
6402 g_assert ((p - buf) < buf_size);
6404 info_offsets [i] = add_to_blob (acfg, buf, p - buf);
6409 * Construct a chained hash table for mapping indexes in extra_method_info to
6412 table_size = g_spaced_primes_closest ((int)(nmethods * 1.5));
6413 table = g_ptr_array_sized_new (table_size);
6414 for (i = 0; i < table_size; ++i)
6415 g_ptr_array_add (table, NULL);
6416 chain_lengths = g_new0 (int, table_size);
6417 max_chain_length = 0;
6418 for (i = 0; i < acfg->extra_methods->len; ++i) {
6419 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
6420 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
6426 key = info_offsets [i];
6427 value = get_method_index (acfg, method);
6429 hash = mono_aot_method_hash (method) % table_size;
6431 chain_lengths [hash] ++;
6432 max_chain_length = MAX (max_chain_length, chain_lengths [hash]);
6434 new_entry = mono_mempool_alloc0 (acfg->mempool, sizeof (HashEntry));
6435 new_entry->key = key;
6436 new_entry->value = value;
6438 entry = g_ptr_array_index (table, hash);
6439 if (entry == NULL) {
6440 new_entry->index = hash;
6441 g_ptr_array_index (table, hash) = new_entry;
6444 entry = entry->next;
6446 entry->next = new_entry;
6447 new_entry->index = table->len;
6448 g_ptr_array_add (table, new_entry);
6452 //printf ("MAX: %d\n", max_chain_length);
6454 /* Emit the table */
6455 sprintf (symbol, "extra_method_table");
6456 emit_section_change (acfg, RODATA_SECT, 0);
6457 emit_alignment (acfg, 8);
6458 emit_label (acfg, symbol);
6460 emit_int32 (acfg, table_size);
6461 for (i = 0; i < table->len; ++i) {
6462 HashEntry *entry = g_ptr_array_index (table, i);
6464 if (entry == NULL) {
6465 emit_int32 (acfg, 0);
6466 emit_int32 (acfg, 0);
6467 emit_int32 (acfg, 0);
6469 //g_assert (entry->key > 0);
6470 emit_int32 (acfg, entry->key);
6471 emit_int32 (acfg, entry->value);
6473 emit_int32 (acfg, entry->next->index);
6475 emit_int32 (acfg, 0);
6480 * Emit a table reverse mapping method indexes to their index in extra_method_info.
6481 * This is used by mono_aot_find_jit_info ().
6483 sprintf (symbol, "extra_method_info_offsets");
6484 emit_section_change (acfg, RODATA_SECT, 0);
6485 emit_alignment (acfg, 8);
6486 emit_label (acfg, symbol);
6488 emit_int32 (acfg, acfg->extra_methods->len);
6489 for (i = 0; i < acfg->extra_methods->len; ++i) {
6490 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
6492 emit_int32 (acfg, get_method_index (acfg, method));
6493 emit_int32 (acfg, info_offsets [i]);
6498 emit_exception_info (MonoAotCompile *acfg)
6504 offsets = g_new0 (gint32, acfg->nmethods);
6505 for (i = 0; i < acfg->nmethods; ++i) {
6506 if (acfg->cfgs [i]) {
6507 emit_exception_debug_info (acfg, acfg->cfgs [i]);
6508 offsets [i] = acfg->cfgs [i]->ex_info_offset;
6514 sprintf (symbol, "ex_info_offsets");
6515 emit_section_change (acfg, RODATA_SECT, 1);
6516 emit_alignment (acfg, 8);
6517 emit_label (acfg, symbol);
6519 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->nmethods, 10, offsets);
6524 emit_unwind_info (MonoAotCompile *acfg)
6530 * The unwind info contains a lot of duplicates so we emit each unique
6531 * entry once, and only store the offset from the start of the table in the
6535 sprintf (symbol, "unwind_info");
6536 emit_section_change (acfg, RODATA_SECT, 1);
6537 emit_alignment (acfg, 8);
6538 emit_label (acfg, symbol);
6540 for (i = 0; i < acfg->unwind_ops->len; ++i) {
6541 guint32 index = GPOINTER_TO_UINT (g_ptr_array_index (acfg->unwind_ops, i));
6542 guint8 *unwind_info;
6543 guint32 unwind_info_len;
6547 unwind_info = mono_get_cached_unwind_info (index, &unwind_info_len);
6550 encode_value (unwind_info_len, p, &p);
6551 emit_bytes (acfg, buf, p - buf);
6552 emit_bytes (acfg, unwind_info, unwind_info_len);
6554 acfg->stats.unwind_info_size += (p - buf) + unwind_info_len;
6559 emit_class_info (MonoAotCompile *acfg)
6565 offsets = g_new0 (gint32, acfg->image->tables [MONO_TABLE_TYPEDEF].rows);
6566 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i)
6567 offsets [i] = emit_klass_info (acfg, MONO_TOKEN_TYPE_DEF | (i + 1));
6569 sprintf (symbol, "class_info_offsets");
6570 emit_section_change (acfg, RODATA_SECT, 1);
6571 emit_alignment (acfg, 8);
6572 emit_label (acfg, symbol);
6574 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->image->tables [MONO_TABLE_TYPEDEF].rows, 10, offsets);
6578 typedef struct ClassNameTableEntry {
6579 guint32 token, index;
6580 struct ClassNameTableEntry *next;
6581 } ClassNameTableEntry;
6584 emit_class_name_table (MonoAotCompile *acfg)
6587 guint32 token, hash;
6592 ClassNameTableEntry *entry, *new_entry;
6595 * Construct a chained hash table for mapping class names to typedef tokens.
6597 table_size = g_spaced_primes_closest ((int)(acfg->image->tables [MONO_TABLE_TYPEDEF].rows * 1.5));
6598 table = g_ptr_array_sized_new (table_size);
6599 for (i = 0; i < table_size; ++i)
6600 g_ptr_array_add (table, NULL);
6601 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
6602 token = MONO_TOKEN_TYPE_DEF | (i + 1);
6603 klass = mono_class_get (acfg->image, token);
6605 mono_loader_clear_error ();
6608 full_name = mono_type_get_name_full (mono_class_get_type (klass), MONO_TYPE_NAME_FORMAT_FULL_NAME);
6609 hash = mono_metadata_str_hash (full_name) % table_size;
6612 /* FIXME: Allocate from the mempool */
6613 new_entry = g_new0 (ClassNameTableEntry, 1);
6614 new_entry->token = token;
6616 entry = g_ptr_array_index (table, hash);
6617 if (entry == NULL) {
6618 new_entry->index = hash;
6619 g_ptr_array_index (table, hash) = new_entry;
6622 entry = entry->next;
6624 entry->next = new_entry;
6625 new_entry->index = table->len;
6626 g_ptr_array_add (table, new_entry);
6630 /* Emit the table */
6631 sprintf (symbol, "class_name_table");
6632 emit_section_change (acfg, RODATA_SECT, 0);
6633 emit_alignment (acfg, 8);
6634 emit_label (acfg, symbol);
6636 /* FIXME: Optimize memory usage */
6637 g_assert (table_size < 65000);
6638 emit_int16 (acfg, table_size);
6639 g_assert (table->len < 65000);
6640 for (i = 0; i < table->len; ++i) {
6641 ClassNameTableEntry *entry = g_ptr_array_index (table, i);
6643 if (entry == NULL) {
6644 emit_int16 (acfg, 0);
6645 emit_int16 (acfg, 0);
6647 emit_int16 (acfg, mono_metadata_token_index (entry->token));
6649 emit_int16 (acfg, entry->next->index);
6651 emit_int16 (acfg, 0);
6657 emit_image_table (MonoAotCompile *acfg)
6663 * The image table is small but referenced in a lot of places.
6664 * So we emit it at once, and reference its elements by an index.
6667 sprintf (symbol, "image_table");
6668 emit_section_change (acfg, RODATA_SECT, 1);
6669 emit_alignment (acfg, 8);
6670 emit_label (acfg, symbol);
6672 emit_int32 (acfg, acfg->image_table->len);
6673 for (i = 0; i < acfg->image_table->len; i++) {
6674 MonoImage *image = (MonoImage*)g_ptr_array_index (acfg->image_table, i);
6675 MonoAssemblyName *aname = &image->assembly->aname;
6677 /* FIXME: Support multi-module assemblies */
6678 g_assert (image->assembly->image == image);
6680 emit_string (acfg, image->assembly_name);
6681 emit_string (acfg, image->guid);
6682 emit_string (acfg, aname->culture ? aname->culture : "");
6683 emit_string (acfg, (const char*)aname->public_key_token);
6685 emit_alignment (acfg, 8);
6686 emit_int32 (acfg, aname->flags);
6687 emit_int32 (acfg, aname->major);
6688 emit_int32 (acfg, aname->minor);
6689 emit_int32 (acfg, aname->build);
6690 emit_int32 (acfg, aname->revision);
6695 emit_got_info (MonoAotCompile *acfg)
6698 int i, first_plt_got_patch, buf_size;
6700 guint32 *got_info_offsets;
6702 /* Add the patches needed by the PLT to the GOT */
6703 acfg->plt_got_offset_base = acfg->got_offset;
6704 first_plt_got_patch = acfg->got_patches->len;
6705 for (i = 1; i < acfg->plt_offset; ++i) {
6706 MonoPltEntry *plt_entry = g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
6708 g_ptr_array_add (acfg->got_patches, plt_entry->ji);
6710 acfg->stats.got_slot_types [plt_entry->ji->type] ++;
6713 acfg->got_offset += acfg->plt_offset;
6717 * - optimize offsets table.
6718 * - reduce number of exported symbols.
6719 * - emit info for a klass only once.
6720 * - determine when a method uses a GOT slot which is guaranteed to be already
6722 * - clean up and document the code.
6723 * - use String.Empty in class libs.
6726 /* Encode info required to decode shared GOT entries */
6727 buf_size = acfg->got_patches->len * 128;
6728 p = buf = mono_mempool_alloc (acfg->mempool, buf_size);
6729 got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->got_patches->len * sizeof (guint32));
6730 acfg->plt_got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->plt_offset * sizeof (guint32));
6732 if (acfg->plt_offset)
6733 acfg->plt_got_info_offsets [0] = 0;
6734 for (i = 0; i < acfg->got_patches->len; ++i) {
6735 MonoJumpInfo *ji = g_ptr_array_index (acfg->got_patches, i);
6740 encode_value (ji->type, p, &p);
6742 encode_patch (acfg, ji, p, &p);
6743 acfg->stats.got_slot_info_sizes [ji->type] += p - p2;
6744 g_assert (p - buf <= buf_size);
6745 got_info_offsets [i] = add_to_blob (acfg, buf, p - buf);
6747 if (i >= first_plt_got_patch)
6748 acfg->plt_got_info_offsets [i - first_plt_got_patch + 1] = got_info_offsets [i];
6749 acfg->stats.got_info_size += p - buf;
6752 /* Emit got_info_offsets table */
6753 sprintf (symbol, "got_info_offsets");
6754 emit_section_change (acfg, RODATA_SECT, 1);
6755 emit_alignment (acfg, 8);
6756 emit_label (acfg, symbol);
6758 /* No need to emit offsets for the got plt entries, the plt embeds them directly */
6759 acfg->stats.offsets_size += emit_offset_table (acfg, first_plt_got_patch, 10, (gint32*)got_info_offsets);
6763 emit_got (MonoAotCompile *acfg)
6768 /* Don't make GOT global so accesses to it don't need relocations */
6769 sprintf (symbol, "%s", acfg->got_symbol);
6770 emit_section_change (acfg, ".bss", 0);
6771 emit_alignment (acfg, 8);
6772 emit_local_symbol (acfg, symbol, "got_end", FALSE);
6773 emit_label (acfg, symbol);
6774 if (acfg->got_offset > 0)
6775 emit_zero_bytes (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
6777 sprintf (symbol, "got_end");
6778 emit_label (acfg, symbol);
6782 typedef struct GlobalsTableEntry {
6783 guint32 value, index;
6784 struct GlobalsTableEntry *next;
6785 } GlobalsTableEntry;
6788 emit_globals (MonoAotCompile *acfg)
6794 GlobalsTableEntry *entry, *new_entry;
6796 if (!acfg->aot_opts.static_link)
6800 * When static linking, we emit a table containing our globals.
6804 * Construct a chained hash table for mapping global names to their index in
6805 * the globals table.
6807 table_size = g_spaced_primes_closest ((int)(acfg->globals->len * 1.5));
6808 table = g_ptr_array_sized_new (table_size);
6809 for (i = 0; i < table_size; ++i)
6810 g_ptr_array_add (table, NULL);
6811 for (i = 0; i < acfg->globals->len; ++i) {
6812 char *name = g_ptr_array_index (acfg->globals, i);
6814 hash = mono_metadata_str_hash (name) % table_size;
6816 /* FIXME: Allocate from the mempool */
6817 new_entry = g_new0 (GlobalsTableEntry, 1);
6818 new_entry->value = i;
6820 entry = g_ptr_array_index (table, hash);
6821 if (entry == NULL) {
6822 new_entry->index = hash;
6823 g_ptr_array_index (table, hash) = new_entry;
6826 entry = entry->next;
6828 entry->next = new_entry;
6829 new_entry->index = table->len;
6830 g_ptr_array_add (table, new_entry);
6834 /* Emit the table */
6835 sprintf (symbol, ".Lglobals_hash");
6836 emit_section_change (acfg, RODATA_SECT, 0);
6837 emit_alignment (acfg, 8);
6838 emit_label (acfg, symbol);
6840 /* FIXME: Optimize memory usage */
6841 g_assert (table_size < 65000);
6842 emit_int16 (acfg, table_size);
6843 for (i = 0; i < table->len; ++i) {
6844 GlobalsTableEntry *entry = g_ptr_array_index (table, i);
6846 if (entry == NULL) {
6847 emit_int16 (acfg, 0);
6848 emit_int16 (acfg, 0);
6850 emit_int16 (acfg, entry->value + 1);
6852 emit_int16 (acfg, entry->next->index);
6854 emit_int16 (acfg, 0);
6858 /* Emit the names */
6859 for (i = 0; i < acfg->globals->len; ++i) {
6860 char *name = g_ptr_array_index (acfg->globals, i);
6862 sprintf (symbol, "name_%d", i);
6863 emit_section_change (acfg, RODATA_SECT, 1);
6865 emit_alignment (acfg, 4);
6867 emit_label (acfg, symbol);
6868 emit_string (acfg, name);
6871 /* Emit the globals table */
6872 sprintf (symbol, "globals");
6873 emit_section_change (acfg, ".data", 0);
6874 /* This is not a global, since it is accessed by the init function */
6875 emit_alignment (acfg, 8);
6876 emit_label (acfg, symbol);
6878 sprintf (symbol, "%sglobals_hash", acfg->temp_prefix);
6879 emit_pointer (acfg, symbol);
6881 for (i = 0; i < acfg->globals->len; ++i) {
6882 char *name = g_ptr_array_index (acfg->globals, i);
6884 sprintf (symbol, "name_%d", i);
6885 emit_pointer (acfg, symbol);
6887 sprintf (symbol, "%s", name);
6888 emit_pointer (acfg, symbol);
6890 /* Null terminate the table */
6891 emit_int32 (acfg, 0);
6892 emit_int32 (acfg, 0);
6896 emit_autoreg (MonoAotCompile *acfg)
6901 * Emit a function into the .ctor section which will be called by the ELF
6902 * loader to register this module with the runtime.
6904 if (! (!acfg->use_bin_writer && acfg->aot_opts.static_link && acfg->aot_opts.autoreg))
6907 symbol = g_strdup_printf ("_%s_autoreg", acfg->static_linking_symbol);
6909 arch_emit_autoreg (acfg, symbol);
6915 emit_mem_end (MonoAotCompile *acfg)
6919 sprintf (symbol, "mem_end");
6920 emit_section_change (acfg, ".text", 1);
6921 emit_alignment (acfg, 8);
6922 emit_label (acfg, symbol);
6926 * Emit a structure containing all the information not stored elsewhere.
6929 emit_file_info (MonoAotCompile *acfg)
6934 const char *gc_name;
6937 emit_string_symbol (acfg, "assembly_guid" , acfg->image->guid);
6939 if (acfg->aot_opts.bind_to_runtime_version) {
6940 build_info = mono_get_runtime_build_info ();
6941 emit_string_symbol (acfg, "runtime_version", build_info);
6942 g_free (build_info);
6944 emit_string_symbol (acfg, "runtime_version", "");
6947 /* Emit a string holding the assembly name */
6948 emit_string_symbol (acfg, "assembly_name", acfg->image->assembly->aname.name);
6951 * The managed allocators are GC specific, so can't use an AOT image created by one GC
6954 gc_name = mono_gc_get_gc_name ();
6955 gc_name_offset = add_to_blob (acfg, (guint8*)gc_name, strlen (gc_name) + 1);
6957 sprintf (symbol, "mono_aot_file_info");
6958 emit_section_change (acfg, ".data", 0);
6959 emit_alignment (acfg, 8);
6960 emit_label (acfg, symbol);
6961 if (!acfg->aot_opts.static_link)
6962 emit_global (acfg, symbol, FALSE);
6964 /* The data emitted here must match MonoAotFileInfo. */
6966 emit_int32 (acfg, MONO_AOT_FILE_VERSION);
6967 emit_int32 (acfg, 0);
6970 * We emit pointers to our data structures instead of emitting global symbols which
6971 * point to them, to reduce the number of globals, and because using globals leads to
6972 * various problems (i.e. arm/thumb).
6974 emit_pointer (acfg, acfg->got_symbol);
6975 emit_pointer (acfg, "methods");
6978 * Emit a reference to the mono_eh_frame table created by our modified LLVM compiler.
6980 emit_pointer (acfg, "mono_eh_frame");
6982 emit_pointer (acfg, NULL);
6984 emit_pointer (acfg, "blob");
6985 emit_pointer (acfg, "class_name_table");
6986 emit_pointer (acfg, "class_info_offsets");
6987 emit_pointer (acfg, "method_info_offsets");
6988 emit_pointer (acfg, "ex_info_offsets");
6989 emit_pointer (acfg, "code_offsets");
6990 emit_pointer (acfg, "extra_method_info_offsets");
6991 emit_pointer (acfg, "extra_method_table");
6992 emit_pointer (acfg, "got_info_offsets");
6993 emit_pointer (acfg, "methods_end");
6994 emit_pointer (acfg, "unwind_info");
6995 emit_pointer (acfg, "mem_end");
6996 emit_pointer (acfg, "image_table");
6997 emit_pointer (acfg, "plt");
6998 emit_pointer (acfg, "plt_end");
6999 emit_pointer (acfg, "assembly_guid");
7000 emit_pointer (acfg, "runtime_version");
7001 if (acfg->num_trampoline_got_entries) {
7002 emit_pointer (acfg, "specific_trampolines");
7003 emit_pointer (acfg, "static_rgctx_trampolines");
7004 emit_pointer (acfg, "imt_thunks");
7006 emit_pointer (acfg, NULL);
7007 emit_pointer (acfg, NULL);
7008 emit_pointer (acfg, NULL);
7010 if (acfg->thumb_mixed) {
7011 emit_pointer (acfg, "thumb_end");
7013 emit_pointer (acfg, NULL);
7015 if (acfg->aot_opts.static_link) {
7016 emit_pointer (acfg, "globals");
7018 emit_pointer (acfg, NULL);
7020 emit_pointer (acfg, "assembly_name");
7021 emit_pointer (acfg, "unbox_trampolines");
7022 emit_pointer (acfg, "unbox_trampolines_end");
7024 emit_int32 (acfg, acfg->plt_got_offset_base);
7025 emit_int32 (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
7026 emit_int32 (acfg, acfg->plt_offset);
7027 emit_int32 (acfg, acfg->nmethods);
7028 emit_int32 (acfg, acfg->flags);
7029 emit_int32 (acfg, acfg->opts);
7030 emit_int32 (acfg, acfg->simd_opts);
7031 emit_int32 (acfg, gc_name_offset);
7033 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
7034 emit_int32 (acfg, acfg->num_trampolines [i]);
7035 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
7036 emit_int32 (acfg, acfg->trampoline_got_offset_base [i]);
7037 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
7038 emit_int32 (acfg, acfg->trampoline_size [i]);
7040 #if defined (TARGET_ARM) && defined (__APPLE__)
7045 t.type = MONO_TYPE_R8;
7046 mono_type_size (&t, &align);
7048 emit_int32 (acfg, align);
7050 t.type = MONO_TYPE_I8;
7051 mono_type_size (&t, &align);
7053 emit_int32 (acfg, align);
7056 emit_int32 (acfg, __alignof__ (double));
7057 emit_int32 (acfg, __alignof__ (gint64));
7060 if (acfg->aot_opts.static_link) {
7064 * Emit a global symbol which can be passed by an embedding app to
7065 * mono_aot_register_module (). The symbol points to a pointer to the the file info
7068 #if defined(__APPLE__) && !defined(__native_client_codegen__)
7069 sprintf (symbol, "_mono_aot_module_%s_info", acfg->image->assembly->aname.name);
7071 sprintf (symbol, "mono_aot_module_%s_info", acfg->image->assembly->aname.name);
7074 /* Get rid of characters which cannot occur in symbols */
7076 for (p = symbol; *p; ++p) {
7077 if (!(isalnum (*p) || *p == '_'))
7080 acfg->static_linking_symbol = g_strdup (symbol);
7081 emit_global_inner (acfg, symbol, FALSE);
7082 emit_label (acfg, symbol);
7083 emit_pointer (acfg, "mono_aot_file_info");
7088 emit_blob (MonoAotCompile *acfg)
7092 sprintf (symbol, "blob");
7093 emit_section_change (acfg, RODATA_SECT, 1);
7094 emit_alignment (acfg, 8);
7095 emit_label (acfg, symbol);
7097 emit_bytes (acfg, (guint8*)acfg->blob.data, acfg->blob.index);
7101 emit_dwarf_info (MonoAotCompile *acfg)
7103 #ifdef EMIT_DWARF_INFO
7105 char symbol [128], symbol2 [128];
7107 /* DIEs for methods */
7108 for (i = 0; i < acfg->nmethods; ++i) {
7109 MonoCompile *cfg = acfg->cfgs [i];
7114 // FIXME: LLVM doesn't define .Lme_...
7115 if (cfg->compile_llvm)
7118 sprintf (symbol, "%s", cfg->asm_symbol);
7119 sprintf (symbol2, "%sme_%x", acfg->temp_prefix, i);
7121 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 ()));
7127 collect_methods (MonoAotCompile *acfg)
7130 MonoImage *image = acfg->image;
7132 /* Collect methods */
7133 for (i = 0; i < image->tables [MONO_TABLE_METHOD].rows; ++i) {
7135 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
7137 method = mono_get_method (acfg->image, token, NULL);
7140 printf ("Failed to load method 0x%x from '%s'.\n", token, image->name);
7144 /* Load all methods eagerly to skip the slower lazy loading code */
7145 mono_class_setup_methods (method->klass);
7147 if (acfg->aot_opts.full_aot && method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
7148 /* Compile the wrapper instead */
7149 /* We do this here instead of add_wrappers () because it is easy to do it here */
7150 MonoMethod *wrapper = mono_marshal_get_native_wrapper (method, check_for_pending_exc, TRUE);
7154 /* FIXME: Some mscorlib methods don't have debug info */
7156 if (acfg->aot_opts.soft_debug && !method->wrapper_type) {
7157 if (!((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
7158 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
7159 (method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
7160 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))) {
7161 if (!mono_debug_lookup_method (method)) {
7162 fprintf (stderr, "Method %s has no debug info, probably the .mdb file for the assembly is missing.\n", mono_method_full_name (method, TRUE));
7169 /* Since we add the normal methods first, their index will be equal to their zero based token index */
7170 add_method_with_index (acfg, method, i, FALSE);
7171 acfg->method_index ++;
7174 add_generic_instances (acfg);
7176 if (acfg->aot_opts.full_aot)
7177 add_wrappers (acfg);
7181 compile_methods (MonoAotCompile *acfg)
7185 if (acfg->aot_opts.nthreads > 0) {
7190 gpointer *user_data;
7191 MonoMethod **methods;
7193 methods_len = acfg->methods->len;
7195 len = acfg->methods->len / acfg->aot_opts.nthreads;
7198 * Partition the list of methods into fragments, and hand it to threads to
7201 threads = g_ptr_array_new ();
7202 /* Make a copy since acfg->methods is modified by compile_method () */
7203 methods = g_new0 (MonoMethod*, methods_len);
7204 //memcpy (methods, g_ptr_array_index (acfg->methods, 0), sizeof (MonoMethod*) * methods_len);
7205 for (i = 0; i < methods_len; ++i)
7206 methods [i] = g_ptr_array_index (acfg->methods, i);
7208 while (i < methods_len) {
7209 frag = g_ptr_array_new ();
7210 for (j = 0; j < len; ++j) {
7211 if (i < methods_len) {
7212 g_ptr_array_add (frag, methods [i]);
7217 user_data = g_new0 (gpointer, 3);
7218 user_data [0] = mono_domain_get ();
7219 user_data [1] = acfg;
7220 user_data [2] = frag;
7222 handle = mono_create_thread (NULL, 0, (gpointer)compile_thread_main, user_data, 0, NULL);
7223 g_ptr_array_add (threads, handle);
7227 for (i = 0; i < threads->len; ++i) {
7228 WaitForSingleObjectEx (g_ptr_array_index (threads, i), INFINITE, FALSE);
7234 /* Compile methods added by compile_method () or all methods if nthreads == 0 */
7235 for (i = methods_len; i < acfg->methods->len; ++i) {
7236 /* This can new methods to acfg->methods */
7237 compile_method (acfg, g_ptr_array_index (acfg->methods, i));
7242 compile_asm (MonoAotCompile *acfg)
7244 char *command, *objfile;
7245 char *outfile_name, *tmp_outfile_name;
7246 const char *tool_prefix = acfg->aot_opts.tool_prefix ? acfg->aot_opts.tool_prefix : "";
7248 #if defined(TARGET_AMD64)
7249 #define AS_OPTIONS "--64"
7250 #elif defined(TARGET_POWERPC64)
7251 #define AS_OPTIONS "-a64 -mppc64"
7252 #define LD_OPTIONS "-m elf64ppc"
7253 #elif defined(sparc) && SIZEOF_VOID_P == 8
7254 #define AS_OPTIONS "-xarch=v9"
7255 #elif defined(TARGET_X86) && defined(__APPLE__) && !defined(__native_client_codegen__)
7256 #define AS_OPTIONS "-arch i386 -W"
7258 #define AS_OPTIONS ""
7261 #ifdef __native_client_codegen__
7262 #if defined(TARGET_AMD64)
7263 #define AS_NAME "nacl64-as"
7265 #define AS_NAME "nacl-as"
7268 #define AS_NAME "as"
7272 #define LD_OPTIONS ""
7275 #define EH_LD_OPTIONS ""
7277 if (acfg->aot_opts.asm_only) {
7278 printf ("Output file: '%s'.\n", acfg->tmpfname);
7279 if (acfg->aot_opts.static_link)
7280 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
7284 if (acfg->aot_opts.static_link) {
7285 if (acfg->aot_opts.outfile)
7286 objfile = g_strdup_printf ("%s", acfg->aot_opts.outfile);
7288 objfile = g_strdup_printf ("%s.o", acfg->image->name);
7290 objfile = g_strdup_printf ("%s.o", acfg->tmpfname);
7292 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);
7293 printf ("Executing the native assembler: %s\n", command);
7294 if (system (command) != 0) {
7302 if (acfg->aot_opts.static_link) {
7303 printf ("Output file: '%s'.\n", objfile);
7304 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
7309 if (acfg->aot_opts.outfile)
7310 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
7312 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
7314 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
7317 command = g_strdup_printf ("ld -shared -G -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
7318 #elif defined(__ppc__) && defined(__APPLE__)
7319 command = g_strdup_printf ("gcc -dynamiclib -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
7320 #elif defined(HOST_WIN32)
7321 command = g_strdup_printf ("gcc -shared --dll -mno-cygwin -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
7322 #elif defined(TARGET_X86) && defined(__APPLE__) && !defined(__native_client_codegen__)
7323 command = g_strdup_printf ("gcc -m32 -dynamiclib -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
7325 command = g_strdup_printf ("%sld %s %s -shared -o %s %s.o", tool_prefix, EH_LD_OPTIONS, LD_OPTIONS, tmp_outfile_name, acfg->tmpfname);
7327 printf ("Executing the native linker: %s\n", command);
7328 if (system (command) != 0) {
7329 g_free (tmp_outfile_name);
7330 g_free (outfile_name);
7338 /*com = g_strdup_printf ("strip --strip-unneeded %s%s", acfg->image->name, SHARED_EXT);
7339 printf ("Stripping the binary: %s\n", com);
7343 #if defined(TARGET_ARM) && !defined(__APPLE__)
7345 * gas generates 'mapping symbols' each time code and data is mixed, which
7346 * happens a lot in emit_and_reloc_code (), so we need to get rid of them.
7348 command = g_strdup_printf ("%sstrip --strip-symbol=\\$a --strip-symbol=\\$d %s", tool_prefix, tmp_outfile_name);
7349 printf ("Stripping the binary: %s\n", command);
7350 if (system (command) != 0) {
7351 g_free (tmp_outfile_name);
7352 g_free (outfile_name);
7359 rename (tmp_outfile_name, outfile_name);
7361 g_free (tmp_outfile_name);
7362 g_free (outfile_name);
7365 if (acfg->aot_opts.save_temps)
7366 printf ("Retained input file.\n");
7368 unlink (acfg->tmpfname);
7373 static MonoAotCompile*
7374 acfg_create (MonoAssembly *ass, guint32 opts)
7376 MonoImage *image = ass->image;
7377 MonoAotCompile *acfg;
7380 acfg = g_new0 (MonoAotCompile, 1);
7381 acfg->methods = g_ptr_array_new ();
7382 acfg->method_indexes = g_hash_table_new (NULL, NULL);
7383 acfg->method_depth = g_hash_table_new (NULL, NULL);
7384 acfg->plt_offset_to_entry = g_hash_table_new (NULL, NULL);
7385 acfg->patch_to_plt_entry = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
7386 acfg->patch_to_got_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
7387 acfg->patch_to_got_offset_by_type = g_new0 (GHashTable*, MONO_PATCH_INFO_NUM);
7388 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i)
7389 acfg->patch_to_got_offset_by_type [i] = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
7390 acfg->got_patches = g_ptr_array_new ();
7391 acfg->method_to_cfg = g_hash_table_new (NULL, NULL);
7392 acfg->token_info_hash = g_hash_table_new_full (NULL, NULL, NULL, g_free);
7393 acfg->method_to_pinvoke_import = g_hash_table_new_full (NULL, NULL, NULL, g_free);
7394 acfg->image_hash = g_hash_table_new (NULL, NULL);
7395 acfg->image_table = g_ptr_array_new ();
7396 acfg->globals = g_ptr_array_new ();
7397 acfg->image = image;
7399 /* TODO: Write out set of SIMD instructions used, rather than just those available */
7400 acfg->simd_opts = mono_arch_cpu_enumerate_simd_versions ();
7401 acfg->mempool = mono_mempool_new ();
7402 acfg->extra_methods = g_ptr_array_new ();
7403 acfg->unwind_info_offsets = g_hash_table_new (NULL, NULL);
7404 acfg->unwind_ops = g_ptr_array_new ();
7405 acfg->method_label_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
7406 acfg->method_order = g_ptr_array_new ();
7407 acfg->export_names = g_hash_table_new (NULL, NULL);
7408 acfg->klass_blob_hash = g_hash_table_new (NULL, NULL);
7409 acfg->method_blob_hash = g_hash_table_new (NULL, NULL);
7410 acfg->plt_entry_debug_sym_cache = g_hash_table_new (g_str_hash, g_str_equal);
7411 InitializeCriticalSection (&acfg->mutex);
7417 acfg_free (MonoAotCompile *acfg)
7421 img_writer_destroy (acfg->w);
7422 for (i = 0; i < acfg->nmethods; ++i)
7424 g_free (acfg->cfgs [i]);
7425 g_free (acfg->cfgs);
7426 g_free (acfg->static_linking_symbol);
7427 g_free (acfg->got_symbol);
7428 g_free (acfg->plt_symbol);
7429 g_ptr_array_free (acfg->methods, TRUE);
7430 g_ptr_array_free (acfg->got_patches, TRUE);
7431 g_ptr_array_free (acfg->image_table, TRUE);
7432 g_ptr_array_free (acfg->globals, TRUE);
7433 g_ptr_array_free (acfg->unwind_ops, TRUE);
7434 g_hash_table_destroy (acfg->method_indexes);
7435 g_hash_table_destroy (acfg->method_depth);
7436 g_hash_table_destroy (acfg->plt_offset_to_entry);
7437 g_hash_table_destroy (acfg->patch_to_plt_entry);
7438 g_hash_table_destroy (acfg->patch_to_got_offset);
7439 g_hash_table_destroy (acfg->method_to_cfg);
7440 g_hash_table_destroy (acfg->token_info_hash);
7441 g_hash_table_destroy (acfg->method_to_pinvoke_import);
7442 g_hash_table_destroy (acfg->image_hash);
7443 g_hash_table_destroy (acfg->unwind_info_offsets);
7444 g_hash_table_destroy (acfg->method_label_hash);
7445 g_hash_table_destroy (acfg->export_names);
7446 g_hash_table_destroy (acfg->plt_entry_debug_sym_cache);
7447 g_hash_table_destroy (acfg->klass_blob_hash);
7448 g_hash_table_destroy (acfg->method_blob_hash);
7449 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i)
7450 g_hash_table_destroy (acfg->patch_to_got_offset_by_type [i]);
7451 g_free (acfg->patch_to_got_offset_by_type);
7452 mono_mempool_destroy (acfg->mempool);
7457 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
7459 MonoImage *image = ass->image;
7461 MonoAotCompile *acfg;
7462 char *outfile_name, *tmp_outfile_name, *p;
7466 printf ("Mono Ahead of Time compiler - compiling assembly %s\n", image->name);
7468 acfg = acfg_create (ass, opts);
7470 memset (&acfg->aot_opts, 0, sizeof (acfg->aot_opts));
7471 acfg->aot_opts.write_symbols = TRUE;
7472 acfg->aot_opts.ntrampolines = 1024;
7473 acfg->aot_opts.nrgctx_trampolines = 1024;
7474 acfg->aot_opts.nimt_trampolines = 128;
7475 acfg->aot_opts.llvm_path = g_strdup ("");
7477 mono_aot_parse_options (aot_options, &acfg->aot_opts);
7479 if (acfg->aot_opts.static_link)
7480 acfg->aot_opts.autoreg = TRUE;
7482 //acfg->aot_opts.print_skipped_methods = TRUE;
7484 #ifndef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
7485 if (acfg->aot_opts.full_aot) {
7486 printf ("--aot=full is not supported on this platform.\n");
7491 if (acfg->aot_opts.direct_pinvoke && !acfg->aot_opts.static_link) {
7492 fprintf (stderr, "The 'direct-pinvoke' AOT option also requires the 'static' AOT option.\n");
7496 if (acfg->aot_opts.static_link)
7497 acfg->aot_opts.asm_writer = TRUE;
7499 if (acfg->aot_opts.soft_debug) {
7500 MonoDebugOptions *opt = mini_get_debug_options ();
7502 opt->mdb_optimizations = TRUE;
7503 opt->gen_seq_points = TRUE;
7505 if (mono_debug_format == MONO_DEBUG_FORMAT_NONE) {
7506 fprintf (stderr, "The soft-debug AOT option requires the --debug option.\n");
7509 acfg->flags |= MONO_AOT_FILE_FLAG_DEBUG;
7512 if (mono_use_llvm) {
7514 acfg->aot_opts.asm_writer = TRUE;
7515 acfg->flags |= MONO_AOT_FILE_FLAG_WITH_LLVM;
7517 if (acfg->aot_opts.soft_debug) {
7518 fprintf (stderr, "The 'soft-debug' option is not supported when compiling with LLVM.\n");
7523 if (acfg->aot_opts.full_aot)
7524 acfg->flags |= MONO_AOT_FILE_FLAG_FULL_AOT;
7526 load_profile_files (acfg);
7528 acfg->num_trampolines [MONO_AOT_TRAMP_SPECIFIC] = acfg->aot_opts.full_aot ? acfg->aot_opts.ntrampolines : 0;
7529 #ifdef MONO_ARCH_GSHARED_SUPPORTED
7530 acfg->num_trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = acfg->aot_opts.full_aot ? acfg->aot_opts.nrgctx_trampolines : 0;
7532 acfg->num_trampolines [MONO_AOT_TRAMP_IMT_THUNK] = acfg->aot_opts.full_aot ? acfg->aot_opts.nimt_trampolines : 0;
7534 acfg->temp_prefix = img_writer_get_temp_label_prefix (NULL);
7538 acfg->got_symbol_base = g_strdup_printf ("mono_aot_%s_got", acfg->image->assembly->aname.name);
7539 acfg->plt_symbol = g_strdup_printf ("%smono_aot_%s_plt", acfg->llvm_label_prefix, acfg->image->assembly->aname.name);
7540 acfg->assembly_name_sym = g_strdup (acfg->image->assembly->aname.name);
7542 /* Get rid of characters which cannot occur in symbols */
7543 for (p = acfg->got_symbol_base; *p; ++p) {
7544 if (!(isalnum (*p) || *p == '_'))
7547 for (p = acfg->plt_symbol; *p; ++p) {
7548 if (!(isalnum (*p) || *p == '_'))
7551 for (p = acfg->assembly_name_sym; *p; ++p) {
7552 if (!(isalnum (*p) || *p == '_'))
7556 acfg->method_index = 1;
7558 collect_methods (acfg);
7560 acfg->cfgs_size = acfg->methods->len + 32;
7561 acfg->cfgs = g_new0 (MonoCompile*, acfg->cfgs_size);
7563 /* PLT offset 0 is reserved for the PLT trampoline */
7564 acfg->plt_offset = 1;
7569 mono_llvm_create_aot_module (acfg->got_symbol_base);
7573 /* GOT offset 0 is reserved for the address of the current assembly */
7577 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
7578 ji->type = MONO_PATCH_INFO_IMAGE;
7579 ji->data.image = acfg->image;
7581 get_got_offset (acfg, ji);
7583 /* Slot 1 is reserved for the mscorlib got addr */
7584 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
7585 ji->type = MONO_PATCH_INFO_MSCORLIB_GOT_ADDR;
7586 get_got_offset (acfg, ji);
7588 /* This is very common */
7589 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
7590 ji->type = MONO_PATCH_INFO_GC_CARD_TABLE_ADDR;
7591 get_got_offset (acfg, ji);
7596 compile_methods (acfg);
7600 acfg->stats.jit_time = TV_ELAPSED (atv, btv);
7606 if (acfg->aot_opts.asm_only) {
7607 if (acfg->aot_opts.outfile)
7608 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
7610 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
7612 acfg->tmpfname = g_strdup ("temp.s");
7615 emit_llvm_file (acfg);
7619 if (!acfg->aot_opts.asm_only && !acfg->aot_opts.asm_writer && bin_writer_supported ()) {
7620 if (acfg->aot_opts.outfile)
7621 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
7623 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
7626 * Can't use g_file_open_tmp () as it will be deleted at exit, and
7627 * it might be in another file system so the rename () won't work.
7629 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
7631 acfg->fp = fopen (tmp_outfile_name, "w");
7633 printf ("Unable to create temporary file '%s': %s\n", tmp_outfile_name, strerror (errno));
7637 acfg->w = img_writer_create (acfg->fp, TRUE);
7638 acfg->use_bin_writer = TRUE;
7641 /* Append to the .s file created by llvm */
7642 /* FIXME: Use multiple files instead */
7643 acfg->fp = fopen (acfg->tmpfname, "a+");
7645 if (acfg->aot_opts.asm_only) {
7646 if (acfg->aot_opts.outfile)
7647 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
7649 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
7650 acfg->fp = fopen (acfg->tmpfname, "w+");
7652 int i = g_file_open_tmp ("mono_aot_XXXXXX", &acfg->tmpfname, NULL);
7653 acfg->fp = fdopen (i, "w+");
7655 if (acfg->fp == 0) {
7656 fprintf (stderr, "Unable to open file '%s': %s\n", acfg->tmpfname, strerror (errno));
7660 acfg->w = img_writer_create (acfg->fp, FALSE);
7662 tmp_outfile_name = NULL;
7663 outfile_name = NULL;
7666 acfg->got_symbol = g_strdup_printf ("%s%s", acfg->llvm_label_prefix, acfg->got_symbol_base);
7668 /* Compute symbols for methods */
7669 for (i = 0; i < acfg->nmethods; ++i) {
7670 if (acfg->cfgs [i]) {
7671 MonoCompile *cfg = acfg->cfgs [i];
7672 int method_index = get_method_index (acfg, cfg->orig_method);
7674 if (COMPILE_LLVM (cfg))
7675 cfg->asm_symbol = g_strdup_printf ("%s%s", acfg->llvm_label_prefix, cfg->llvm_method_name);
7677 cfg->asm_symbol = g_strdup_printf ("%s%sm_%x", acfg->temp_prefix, acfg->llvm_label_prefix, method_index);
7681 if (!acfg->aot_opts.nodebug)
7682 acfg->dwarf = mono_dwarf_writer_create (acfg->w, NULL, 0, FALSE);
7684 img_writer_emit_start (acfg->w);
7687 mono_dwarf_writer_emit_base_info (acfg->dwarf, mono_unwind_get_cie_program ());
7689 if (acfg->thumb_mixed) {
7692 * This global symbol marks the end of THUMB code, and the beginning of ARM
7693 * code generated by our JIT.
7695 sprintf (symbol, "thumb_end");
7696 emit_section_change (acfg, ".text", 0);
7697 emit_label (acfg, symbol);
7698 emit_zero_bytes (acfg, 16);
7700 fprintf (acfg->fp, ".arm\n");
7707 emit_extra_methods (acfg);
7709 emit_trampolines (acfg);
7711 emit_class_name_table (acfg);
7713 emit_got_info (acfg);
7715 emit_exception_info (acfg);
7717 emit_unwind_info (acfg);
7719 emit_class_info (acfg);
7723 emit_image_table (acfg);
7727 emit_file_info (acfg);
7731 emit_globals (acfg);
7733 emit_autoreg (acfg);
7736 emit_dwarf_info (acfg);
7737 mono_dwarf_writer_close (acfg->dwarf);
7740 emit_mem_end (acfg);
7742 if (acfg->need_pt_gnu_stack) {
7743 /* This is required so the .so doesn't have an executable stack */
7744 /* The bin writer already emits this */
7745 if (!acfg->use_bin_writer)
7746 fprintf (acfg->fp, "\n.section .note.GNU-stack,\"\",@progbits\n");
7751 acfg->stats.gen_time = TV_ELAPSED (atv, btv);
7754 g_assert (acfg->got_offset <= acfg->final_got_size);
7756 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);
7759 res = img_writer_emit_writeout (acfg->w);
7764 if (acfg->use_bin_writer) {
7765 int err = rename (tmp_outfile_name, outfile_name);
7768 printf ("Unable to rename '%s' to '%s': %s\n", tmp_outfile_name, outfile_name, strerror (errno));
7772 res = compile_asm (acfg);
7779 acfg->stats.link_time = TV_ELAPSED (atv, btv);
7781 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);
7782 if (acfg->stats.genericcount)
7783 printf ("%d methods are generic (%d%%)\n", acfg->stats.genericcount, acfg->stats.mcount ? (acfg->stats.genericcount * 100) / acfg->stats.mcount : 100);
7784 if (acfg->stats.abscount)
7785 printf ("%d methods contain absolute addresses (%d%%)\n", acfg->stats.abscount, acfg->stats.mcount ? (acfg->stats.abscount * 100) / acfg->stats.mcount : 100);
7786 if (acfg->stats.lmfcount)
7787 printf ("%d methods contain lmf pointers (%d%%)\n", acfg->stats.lmfcount, acfg->stats.mcount ? (acfg->stats.lmfcount * 100) / acfg->stats.mcount : 100);
7788 if (acfg->stats.ocount)
7789 printf ("%d methods have other problems (%d%%)\n", acfg->stats.ocount, acfg->stats.mcount ? (acfg->stats.ocount * 100) / acfg->stats.mcount : 100);
7791 printf ("Methods compiled with LLVM: %d (%d%%)\n", acfg->stats.llvm_count, acfg->stats.mcount ? (acfg->stats.llvm_count * 100) / acfg->stats.mcount : 100);
7792 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);
7793 printf ("Direct calls: %d (%d%%)\n", acfg->stats.direct_calls, acfg->stats.all_calls ? (acfg->stats.direct_calls * 100) / acfg->stats.all_calls : 100);
7795 if (acfg->aot_opts.stats) {
7798 printf ("GOT slot distribution:\n");
7799 for (i = 0; i < MONO_PATCH_INFO_NONE; ++i)
7800 if (acfg->stats.got_slot_types [i])
7801 printf ("\t%s: %d (%d)\n", get_patch_name (i), acfg->stats.got_slot_types [i], acfg->stats.got_slot_info_sizes [i]);
7804 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);
7816 mono_aot_readonly_field_override (MonoClassField *field)
7822 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)