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 MonoGenericParam *par = klass->byval_arg.data.generic_param;
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 ? 1 : 0, p, &p);
1958 encode_value (container->is_method, p, &p);
1959 g_assert (par->serial == 0);
1960 if (container->is_method)
1961 encode_method_ref (acfg, container->owner.method, p, &p);
1963 encode_klass_ref (acfg, container->owner.klass, p, &p);
1965 encode_value (par->serial, p, &p);
1967 } else if (klass->byval_arg.type == MONO_TYPE_PTR) {
1968 encode_value (MONO_AOT_TYPEREF_PTR, p, &p);
1969 encode_type (acfg, &klass->byval_arg, p, &p);
1972 g_assert (klass->rank > 0);
1973 encode_value (MONO_AOT_TYPEREF_ARRAY, p, &p);
1974 encode_value (klass->rank, p, &p);
1975 encode_klass_ref (acfg, klass->element_class, p, &p);
1983 * Encode a reference to KLASS. We use our home-grown encoding instead of the
1984 * standard metadata encoding.
1987 encode_klass_ref (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf)
1989 gboolean shared = FALSE;
1992 * The encoding of generic instances is large so emit them only once.
1994 if (klass->generic_class) {
1996 g_assert (klass->type_token);
1998 /* Find a typespec for a class if possible */
1999 token = find_typespec_for_class (acfg, klass);
2002 } else if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) {
2007 guint offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->klass_blob_hash, klass));
2011 buf2 = g_malloc (1024);
2014 encode_klass_ref_inner (acfg, klass, p, &p);
2015 g_assert (p - buf2 < 1024);
2017 offset = add_to_blob (acfg, buf2, p - buf2);
2020 g_hash_table_insert (acfg->klass_blob_hash, klass, GUINT_TO_POINTER (offset + 1));
2026 encode_value (MONO_AOT_TYPEREF_BLOB_INDEX, p, &p);
2027 encode_value (offset, p, &p);
2032 encode_klass_ref_inner (acfg, klass, buf, endbuf);
2036 encode_field_info (MonoAotCompile *cfg, MonoClassField *field, guint8 *buf, guint8 **endbuf)
2038 guint32 token = mono_get_field_token (field);
2041 encode_klass_ref (cfg, field->parent, p, &p);
2042 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_FIELD_DEF);
2043 encode_value (token - MONO_TOKEN_FIELD_DEF, p, &p);
2048 encode_ginst (MonoAotCompile *acfg, MonoGenericInst *inst, guint8 *buf, guint8 **endbuf)
2053 encode_value (inst->type_argc, p, &p);
2054 for (i = 0; i < inst->type_argc; ++i)
2055 encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
2060 encode_generic_context (MonoAotCompile *acfg, MonoGenericContext *context, guint8 *buf, guint8 **endbuf)
2063 MonoGenericInst *inst;
2065 inst = context->class_inst;
2067 g_assert (inst->type_argc);
2068 encode_ginst (acfg, inst, p, &p);
2070 encode_value (0, p, &p);
2072 inst = context->method_inst;
2074 g_assert (inst->type_argc);
2075 encode_ginst (acfg, inst, p, &p);
2077 encode_value (0, p, &p);
2083 encode_type (MonoAotCompile *acfg, MonoType *t, guint8 *buf, guint8 **endbuf)
2087 g_assert (t->num_mods == 0);
2088 /* t->attrs can be ignored */
2089 //g_assert (t->attrs == 0);
2092 *p = MONO_TYPE_PINNED;
2096 *p = MONO_TYPE_BYREF;
2104 case MONO_TYPE_VOID:
2105 case MONO_TYPE_BOOLEAN:
2106 case MONO_TYPE_CHAR:
2119 case MONO_TYPE_STRING:
2120 case MONO_TYPE_OBJECT:
2121 case MONO_TYPE_TYPEDBYREF:
2123 case MONO_TYPE_VALUETYPE:
2124 case MONO_TYPE_CLASS:
2125 encode_klass_ref (acfg, mono_class_from_mono_type (t), p, &p);
2127 case MONO_TYPE_SZARRAY:
2128 encode_klass_ref (acfg, t->data.klass, p, &p);
2131 encode_type (acfg, t->data.type, p, &p);
2133 case MONO_TYPE_GENERICINST: {
2134 MonoClass *gclass = t->data.generic_class->container_class;
2135 MonoGenericInst *inst = t->data.generic_class->context.class_inst;
2137 encode_klass_ref (acfg, gclass, p, &p);
2138 encode_ginst (acfg, inst, p, &p);
2141 case MONO_TYPE_ARRAY: {
2142 MonoArrayType *array = t->data.array;
2145 encode_klass_ref (acfg, array->eklass, p, &p);
2146 encode_value (array->rank, p, &p);
2147 encode_value (array->numsizes, p, &p);
2148 for (i = 0; i < array->numsizes; ++i)
2149 encode_value (array->sizes [i], p, &p);
2150 encode_value (array->numlobounds, p, &p);
2151 for (i = 0; i < array->numlobounds; ++i)
2152 encode_value (array->lobounds [i], p, &p);
2156 g_assert_not_reached ();
2163 encode_signature (MonoAotCompile *acfg, MonoMethodSignature *sig, guint8 *buf, guint8 **endbuf)
2169 /* Similar to the metadata encoding */
2170 if (sig->generic_param_count)
2174 if (sig->explicit_this)
2176 flags |= (sig->call_convention & 0x0F);
2180 if (sig->generic_param_count)
2181 encode_value (sig->generic_param_count, p, &p);
2182 encode_value (sig->param_count, p, &p);
2184 encode_type (acfg, sig->ret, p, &p);
2185 for (i = 0; i < sig->param_count; ++i) {
2186 if (sig->sentinelpos == i) {
2187 *p = MONO_TYPE_SENTINEL;
2190 encode_type (acfg, sig->params [i], p, &p);
2196 #define MAX_IMAGE_INDEX 250
2199 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf)
2201 guint32 image_index = get_image_index (acfg, method->klass->image);
2202 guint32 token = method->token;
2203 MonoJumpInfoToken *ji;
2207 * The encoding for most methods is as follows:
2208 * - image index encoded as a leb128
2209 * - token index encoded as a leb128
2210 * Values of image index >= MONO_AOT_METHODREF_MIN are used to mark additional
2211 * types of method encodings.
2214 g_assert (image_index < MONO_AOT_METHODREF_MIN);
2216 /* Mark methods which can't use aot trampolines because they need the further
2217 * processing in mono_magic_trampoline () which requires a MonoMethod*.
2219 if ((method->is_generic && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) ||
2220 (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED))
2221 encode_value ((MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE << 24), p, &p);
2223 if (method->wrapper_type) {
2224 encode_value ((MONO_AOT_METHODREF_WRAPPER << 24), p, &p);
2226 encode_value (method->wrapper_type, p, &p);
2228 switch (method->wrapper_type) {
2229 case MONO_WRAPPER_REMOTING_INVOKE:
2230 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2231 case MONO_WRAPPER_XDOMAIN_INVOKE: {
2234 m = mono_marshal_method_from_wrapper (method);
2236 encode_method_ref (acfg, m, p, &p);
2239 case MONO_WRAPPER_PROXY_ISINST:
2240 case MONO_WRAPPER_LDFLD:
2241 case MONO_WRAPPER_LDFLDA:
2242 case MONO_WRAPPER_STFLD:
2243 case MONO_WRAPPER_ISINST: {
2244 MonoClass *proxy_class = mono_marshal_get_wrapper_info (method);
2245 encode_klass_ref (acfg, proxy_class, p, &p);
2248 case MONO_WRAPPER_LDFLD_REMOTE:
2249 case MONO_WRAPPER_STFLD_REMOTE:
2251 case MONO_WRAPPER_ALLOC: {
2252 AllocatorWrapperInfo *info = mono_marshal_get_wrapper_info (method);
2254 /* The GC name is saved once in MonoAotFileInfo */
2255 g_assert (info->alloc_type != -1);
2256 encode_value (info->alloc_type, p, &p);
2259 case MONO_WRAPPER_WRITE_BARRIER:
2261 case MONO_WRAPPER_STELEMREF: {
2262 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2265 encode_value (info->subtype, p, &p);
2266 if (info->subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF)
2267 encode_value (info->d.virtual_stelemref.kind, p, &p);
2270 case MONO_WRAPPER_UNKNOWN: {
2271 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2274 encode_value (info->subtype, p, &p);
2275 if (info->subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE ||
2276 info->subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR)
2277 encode_klass_ref (acfg, method->klass, p, &p);
2278 else if (info->subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER)
2279 encode_method_ref (acfg, info->d.synchronized_inner.method, p, &p);
2282 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
2283 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2286 encode_value (info->subtype, p, &p);
2287 if (info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
2288 strcpy ((char*)p, method->name);
2289 p += strlen (method->name) + 1;
2290 } else if (info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT) {
2291 encode_method_ref (acfg, info->d.managed_to_native.method, p, &p);
2293 g_assert (info->subtype == WRAPPER_SUBTYPE_NONE);
2294 encode_method_ref (acfg, info->d.managed_to_native.method, p, &p);
2298 case MONO_WRAPPER_SYNCHRONIZED: {
2301 m = mono_marshal_method_from_wrapper (method);
2303 g_assert (m != method);
2304 encode_method_ref (acfg, m, p, &p);
2307 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
2308 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2311 encode_value (info->subtype, p, &p);
2313 if (info->subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) {
2314 encode_value (info->d.element_addr.rank, p, &p);
2315 encode_value (info->d.element_addr.elem_size, p, &p);
2316 } else if (info->subtype == WRAPPER_SUBTYPE_STRING_CTOR) {
2317 encode_method_ref (acfg, info->d.string_ctor.method, p, &p);
2319 g_assert_not_reached ();
2323 case MONO_WRAPPER_CASTCLASS: {
2324 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2327 encode_value (info->subtype, p, &p);
2330 case MONO_WRAPPER_RUNTIME_INVOKE: {
2331 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2334 encode_value (info->subtype, p, &p);
2335 if (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL)
2336 encode_method_ref (acfg, info->d.runtime_invoke.method, p, &p);
2338 MonoMethodSignature *sig;
2340 encode_value (0, p, &p);
2342 sig = mono_method_signature (method);
2343 encode_signature (acfg, sig, p, &p);
2347 case MONO_WRAPPER_DELEGATE_INVOKE:
2348 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
2349 case MONO_WRAPPER_DELEGATE_END_INVOKE: {
2350 MonoMethodSignature *sig = mono_method_signature (method);
2351 encode_signature (acfg, sig, p, &p);
2354 case MONO_WRAPPER_NATIVE_TO_MANAGED: {
2355 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
2358 encode_method_ref (acfg, info->d.native_to_managed.method, p, &p);
2359 encode_klass_ref (acfg, info->d.native_to_managed.klass, p, &p);
2363 g_assert_not_reached ();
2365 } else if (mono_method_signature (method)->is_inflated) {
2367 * This is a generic method, find the original token which referenced it and
2369 * Obtain the token from information recorded by the JIT.
2371 ji = g_hash_table_lookup (acfg->token_info_hash, method);
2373 image_index = get_image_index (acfg, ji->image);
2374 g_assert (image_index < MAX_IMAGE_INDEX);
2377 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
2378 encode_value (image_index, p, &p);
2379 encode_value (token, p, &p);
2381 MonoMethod *declaring;
2382 MonoGenericContext *context = mono_method_get_context (method);
2384 g_assert (method->is_inflated);
2385 declaring = ((MonoMethodInflated*)method)->declaring;
2388 * This might be a non-generic method of a generic instance, which
2389 * doesn't have a token since the reference is generated by the JIT
2390 * like Nullable:Box/Unbox, or by generic sharing.
2393 encode_value ((MONO_AOT_METHODREF_GINST << 24), p, &p);
2394 /* Encode the klass */
2395 encode_klass_ref (acfg, method->klass, p, &p);
2396 /* Encode the method */
2397 image_index = get_image_index (acfg, method->klass->image);
2398 g_assert (image_index < MAX_IMAGE_INDEX);
2399 g_assert (declaring->token);
2400 token = declaring->token;
2401 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
2402 encode_value (image_index, p, &p);
2403 encode_value (token, p, &p);
2404 encode_generic_context (acfg, context, p, &p);
2406 } else if (token == 0) {
2407 /* This might be a method of a constructed type like int[,].Set */
2408 /* Obtain the token from information recorded by the JIT */
2409 ji = g_hash_table_lookup (acfg->token_info_hash, method);
2411 image_index = get_image_index (acfg, ji->image);
2412 g_assert (image_index < MAX_IMAGE_INDEX);
2415 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
2416 encode_value (image_index, p, &p);
2417 encode_value (token, p, &p);
2420 g_assert (method->klass->rank);
2422 /* Encode directly */
2423 encode_value ((MONO_AOT_METHODREF_ARRAY << 24), p, &p);
2424 encode_klass_ref (acfg, method->klass, p, &p);
2425 if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank)
2426 encode_value (0, p, &p);
2427 else if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank * 2)
2428 encode_value (1, p, &p);
2429 else if (!strcmp (method->name, "Get"))
2430 encode_value (2, p, &p);
2431 else if (!strcmp (method->name, "Address"))
2432 encode_value (3, p, &p);
2433 else if (!strcmp (method->name, "Set"))
2434 encode_value (4, p, &p);
2436 g_assert_not_reached ();
2439 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
2440 encode_value ((image_index << 24) | mono_metadata_token_index (token), p, &p);
2446 compare_patches (gconstpointer a, gconstpointer b)
2450 i = (*(MonoJumpInfo**)a)->ip.i;
2451 j = (*(MonoJumpInfo**)b)->ip.i;
2462 static G_GNUC_UNUSED char*
2463 patch_to_string (MonoJumpInfo *patch_info)
2467 str = g_string_new ("");
2469 g_string_append_printf (str, "%s(", get_patch_name (patch_info->type));
2471 switch (patch_info->type) {
2472 case MONO_PATCH_INFO_VTABLE:
2473 mono_type_get_desc (str, &patch_info->data.klass->byval_arg, TRUE);
2478 g_string_append_printf (str, ")");
2479 return g_string_free (str, FALSE);
2485 * Return whenever PATCH_INFO refers to a direct call, and thus requires a
2488 static inline gboolean
2489 is_plt_patch (MonoJumpInfo *patch_info)
2491 switch (patch_info->type) {
2492 case MONO_PATCH_INFO_METHOD:
2493 case MONO_PATCH_INFO_INTERNAL_METHOD:
2494 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
2495 case MONO_PATCH_INFO_ICALL_ADDR:
2496 case MONO_PATCH_INFO_CLASS_INIT:
2497 case MONO_PATCH_INFO_RGCTX_FETCH:
2498 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
2499 case MONO_PATCH_INFO_MONITOR_ENTER:
2500 case MONO_PATCH_INFO_MONITOR_EXIT:
2501 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
2511 * Return the symbol identifying the plt entry PLT_OFFSET.
2514 get_plt_symbol (MonoAotCompile *acfg, int plt_offset, MonoJumpInfo *patch_info)
2518 * The Apple linker reorganizes object files, so it doesn't like branches to local
2519 * labels, since those have no relocations.
2521 return g_strdup_printf ("%sp_%d", acfg->llvm_label_prefix, plt_offset);
2523 return g_strdup_printf ("%sp_%d", acfg->temp_prefix, plt_offset);
2530 * Return a PLT entry which belongs to the method identified by PATCH_INFO.
2532 static MonoPltEntry*
2533 get_plt_entry (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
2537 if (!is_plt_patch (patch_info))
2540 res = g_hash_table_lookup (acfg->patch_to_plt_entry, patch_info);
2542 // FIXME: This breaks the calculation of final_got_size
2543 if (!acfg->llvm && patch_info->type == MONO_PATCH_INFO_METHOD && (patch_info->data.method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)) {
2545 * Allocate a separate PLT slot for each such patch, since some plt
2546 * entries will refer to the method itself, and some will refer to the
2553 MonoJumpInfo *new_ji;
2555 g_assert (!acfg->final_got_size);
2557 new_ji = mono_patch_info_dup_mp (acfg->mempool, patch_info);
2559 res = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoPltEntry));
2560 res->plt_offset = acfg->plt_offset;
2562 res->symbol = get_plt_symbol (acfg, res->plt_offset, patch_info);
2563 if (acfg->aot_opts.write_symbols)
2564 res->debug_sym = get_plt_entry_debug_sym (acfg, res->ji, acfg->plt_entry_debug_sym_cache);
2566 res->llvm_symbol = g_strdup_printf ("%s_%s_llvm", res->symbol, res->debug_sym);
2568 res->llvm_symbol = g_strdup_printf ("%s_llvm", res->symbol);
2570 g_hash_table_insert (acfg->patch_to_plt_entry, new_ji, res);
2572 g_hash_table_insert (acfg->plt_offset_to_entry, GUINT_TO_POINTER (res->plt_offset), res);
2574 acfg->plt_offset ++;
2583 * Returns the offset of the GOT slot where the runtime object resulting from resolving
2584 * JI could be found if it exists, otherwise allocates a new one.
2587 get_got_offset (MonoAotCompile *acfg, MonoJumpInfo *ji)
2591 got_offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_got_offset_by_type [ji->type], ji));
2593 return got_offset - 1;
2595 got_offset = acfg->got_offset;
2596 acfg->got_offset ++;
2598 if (acfg->final_got_size)
2599 g_assert (got_offset < acfg->final_got_size);
2601 acfg->stats.got_slots ++;
2602 acfg->stats.got_slot_types [ji->type] ++;
2604 g_hash_table_insert (acfg->patch_to_got_offset, ji, GUINT_TO_POINTER (got_offset + 1));
2605 g_hash_table_insert (acfg->patch_to_got_offset_by_type [ji->type], ji, GUINT_TO_POINTER (got_offset + 1));
2606 g_ptr_array_add (acfg->got_patches, ji);
2611 /* Add a method to the list of methods which need to be emitted */
2613 add_method_with_index (MonoAotCompile *acfg, MonoMethod *method, int index, gboolean extra)
2616 if (!g_hash_table_lookup (acfg->method_indexes, method)) {
2617 g_ptr_array_add (acfg->methods, method);
2618 g_hash_table_insert (acfg->method_indexes, method, GUINT_TO_POINTER (index + 1));
2619 acfg->nmethods = acfg->methods->len + 1;
2622 if (method->wrapper_type || extra)
2623 g_ptr_array_add (acfg->extra_methods, method);
2627 get_method_index (MonoAotCompile *acfg, MonoMethod *method)
2629 int index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
2637 add_method_full (MonoAotCompile *acfg, MonoMethod *method, gboolean extra, int depth)
2641 index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
2645 index = acfg->method_index;
2646 add_method_with_index (acfg, method, index, extra);
2648 g_ptr_array_add (acfg->method_order, GUINT_TO_POINTER (index));
2650 g_hash_table_insert (acfg->method_depth, method, GUINT_TO_POINTER (depth));
2652 acfg->method_index ++;
2658 add_method (MonoAotCompile *acfg, MonoMethod *method)
2660 return add_method_full (acfg, method, FALSE, 0);
2664 add_extra_method (MonoAotCompile *acfg, MonoMethod *method)
2666 add_method_full (acfg, method, TRUE, 0);
2670 add_extra_method_with_depth (MonoAotCompile *acfg, MonoMethod *method, int depth)
2672 if (acfg->aot_opts.log_generics)
2673 printf ("%*sAdding method %s.\n", depth, "", mono_method_full_name (method, TRUE));
2675 add_method_full (acfg, method, TRUE, depth);
2679 add_jit_icall_wrapper (gpointer key, gpointer value, gpointer user_data)
2681 MonoAotCompile *acfg = user_data;
2682 MonoJitICallInfo *callinfo = value;
2683 MonoMethod *wrapper;
2689 name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
2690 wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_for_pending_exc);
2693 add_method (acfg, wrapper);
2697 get_runtime_invoke_sig (MonoMethodSignature *sig)
2699 MonoMethodBuilder *mb;
2702 mb = mono_mb_new (mono_defaults.object_class, "FOO", MONO_WRAPPER_NONE);
2703 m = mono_mb_create_method (mb, sig, 16);
2704 return mono_marshal_get_runtime_invoke (m, FALSE);
2708 can_marshal_struct (MonoClass *klass)
2710 MonoClassField *field;
2711 gboolean can_marshal = TRUE;
2712 gpointer iter = NULL;
2714 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2717 /* Only allow a few field types to avoid asserts in the marshalling code */
2718 while ((field = mono_class_get_fields (klass, &iter))) {
2719 if ((field->type->attrs & FIELD_ATTRIBUTE_STATIC))
2722 switch (field->type->type) {
2727 case MONO_TYPE_BOOLEAN:
2730 case MONO_TYPE_CHAR:
2738 case MONO_TYPE_STRING:
2740 case MONO_TYPE_VALUETYPE:
2741 if (!mono_class_from_mono_type (field->type)->enumtype && !can_marshal_struct (mono_class_from_mono_type (field->type)))
2742 can_marshal = FALSE;
2745 can_marshal = FALSE;
2751 /* Its hard to compute whenever these can be marshalled or not */
2752 if (!strcmp (klass->name_space, "System.Net.NetworkInformation.MacOsStructs") && strcmp (klass->name, "sockaddr_dl"))
2759 add_wrappers (MonoAotCompile *acfg)
2761 MonoMethod *method, *m;
2763 MonoMethodSignature *sig, *csig;
2767 * FIXME: Instead of AOTing all the wrappers, it might be better to redesign them
2768 * so there is only one wrapper of a given type, or inlining their contents into their
2773 * FIXME: This depends on the fact that different wrappers have different
2777 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2779 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2780 gboolean skip = FALSE;
2782 method = mono_get_method (acfg->image, token, NULL);
2784 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2785 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
2786 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
2789 if (method->is_generic || method->klass->generic_container)
2792 /* Skip methods which can not be handled by get_runtime_invoke () */
2793 sig = mono_method_signature (method);
2796 if ((sig->ret->type == MONO_TYPE_PTR) ||
2797 (sig->ret->type == MONO_TYPE_TYPEDBYREF))
2800 for (j = 0; j < sig->param_count; j++) {
2801 if (sig->params [j]->type == MONO_TYPE_TYPEDBYREF)
2805 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
2806 if (!method->klass->contextbound) {
2807 MonoDynCallInfo *info = mono_arch_dyn_call_prepare (sig);
2808 gboolean has_nullable = FALSE;
2810 for (j = 0; j < sig->param_count; j++) {
2811 if (sig->params [j]->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (sig->params [j])))
2812 has_nullable = TRUE;
2815 if (info && !has_nullable) {
2816 /* Supported by the dynamic runtime-invoke wrapper */
2824 //printf ("%s\n", mono_method_full_name (method, TRUE));
2825 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
2829 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
2830 #ifdef MONO_ARCH_HAVE_TLS_GET
2831 MonoMethodDesc *desc;
2832 MonoMethod *orig_method;
2836 /* Runtime invoke wrappers */
2838 /* void runtime-invoke () [.cctor] */
2839 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 () [Finalize] */
2844 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2846 csig->ret = &mono_defaults.void_class->byval_arg;
2847 add_method (acfg, get_runtime_invoke_sig (csig));
2849 /* void runtime-invoke (string) [exception ctor] */
2850 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2852 csig->ret = &mono_defaults.void_class->byval_arg;
2853 csig->params [0] = &mono_defaults.string_class->byval_arg;
2854 add_method (acfg, get_runtime_invoke_sig (csig));
2856 /* void runtime-invoke (string, string) [exception ctor] */
2857 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2859 csig->ret = &mono_defaults.void_class->byval_arg;
2860 csig->params [0] = &mono_defaults.string_class->byval_arg;
2861 csig->params [1] = &mono_defaults.string_class->byval_arg;
2862 add_method (acfg, get_runtime_invoke_sig (csig));
2864 /* string runtime-invoke () [Exception.ToString ()] */
2865 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2867 csig->ret = &mono_defaults.string_class->byval_arg;
2868 add_method (acfg, get_runtime_invoke_sig (csig));
2870 /* void runtime-invoke (string, Exception) [exception ctor] */
2871 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2873 csig->ret = &mono_defaults.void_class->byval_arg;
2874 csig->params [0] = &mono_defaults.string_class->byval_arg;
2875 csig->params [1] = &mono_defaults.exception_class->byval_arg;
2876 add_method (acfg, get_runtime_invoke_sig (csig));
2878 /* Assembly runtime-invoke (string, bool) [DoAssemblyResolve] */
2879 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2881 csig->ret = &(mono_class_from_name (
2882 mono_defaults.corlib, "System.Reflection", "Assembly"))->byval_arg;
2883 csig->params [0] = &mono_defaults.string_class->byval_arg;
2884 csig->params [1] = &mono_defaults.boolean_class->byval_arg;
2885 add_method (acfg, get_runtime_invoke_sig (csig));
2887 /* runtime-invoke used by finalizers */
2888 add_method (acfg, mono_marshal_get_runtime_invoke (mono_class_get_method_from_name_flags (mono_defaults.object_class, "Finalize", 0, 0), TRUE));
2890 /* This is used by mono_runtime_capture_context () */
2891 method = mono_get_context_capture_method ();
2893 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
2895 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
2896 add_method (acfg, mono_marshal_get_runtime_invoke_dynamic ());
2899 /* JIT icall wrappers */
2900 /* FIXME: locking */
2901 g_hash_table_foreach (mono_get_jit_icall_info (), add_jit_icall_wrapper, acfg);
2904 add_method (acfg, mono_marshal_get_stelemref ());
2906 #ifdef MONO_ARCH_HAVE_TLS_GET
2907 /* Managed Allocators */
2908 nallocators = mono_gc_get_managed_allocator_types ();
2909 for (i = 0; i < nallocators; ++i) {
2910 m = mono_gc_get_managed_allocator_by_type (i);
2912 add_method (acfg, m);
2915 /* Monitor Enter/Exit */
2916 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
2917 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
2918 /* This is a v4 method */
2920 method = mono_monitor_get_fast_path (orig_method);
2922 add_method (acfg, method);
2924 mono_method_desc_free (desc);
2926 desc = mono_method_desc_new ("Monitor:Exit(object)", FALSE);
2927 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
2928 g_assert (orig_method);
2929 mono_method_desc_free (desc);
2930 method = mono_monitor_get_fast_path (orig_method);
2932 add_method (acfg, method);
2935 /* Stelemref wrappers */
2936 /* There is only a constant number of these, iterating over all types should handle them all */
2937 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
2940 token = MONO_TOKEN_TYPE_DEF | (i + 1);
2941 klass = mono_class_get (acfg->image, token);
2943 add_method (acfg, mono_marshal_get_virtual_stelemref (mono_array_class_get (klass, 1)));
2945 mono_loader_clear_error ();
2948 /* castclass_with_check wrapper */
2949 add_method (acfg, mono_marshal_get_castclass_with_cache ());
2950 /* isinst_with_check wrapper */
2951 add_method (acfg, mono_marshal_get_isinst_with_cache ());
2953 #if defined(MONO_ARCH_ENABLE_MONITOR_IL_FASTPATH)
2955 MonoMethodDesc *desc;
2958 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
2959 m = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
2960 mono_method_desc_free (desc);
2962 m = mono_monitor_get_fast_path (m);
2964 add_method (acfg, m);
2971 * remoting-invoke-with-check wrappers are very frequent, so avoid emitting them,
2972 * we use the original method instead at runtime.
2973 * Since full-aot doesn't support remoting, this is not a problem.
2976 /* remoting-invoke wrappers */
2977 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2978 MonoMethodSignature *sig;
2980 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2981 method = mono_get_method (acfg->image, token, NULL);
2983 sig = mono_method_signature (method);
2985 if (sig->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class)) {
2986 m = mono_marshal_get_remoting_invoke_with_check (method);
2988 add_method (acfg, m);
2993 /* delegate-invoke wrappers */
2994 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
2996 MonoCustomAttrInfo *cattr;
2998 token = MONO_TOKEN_TYPE_DEF | (i + 1);
2999 klass = mono_class_get (acfg->image, token);
3002 mono_loader_clear_error ();
3006 if (klass->delegate && klass != mono_defaults.delegate_class && klass != mono_defaults.multicastdelegate_class && !klass->generic_container) {
3007 method = mono_get_delegate_invoke (klass);
3009 m = mono_marshal_get_delegate_invoke (method, NULL);
3011 add_method (acfg, m);
3013 method = mono_class_get_method_from_name_flags (klass, "BeginInvoke", -1, 0);
3015 add_method (acfg, mono_marshal_get_delegate_begin_invoke (method));
3017 method = mono_class_get_method_from_name_flags (klass, "EndInvoke", -1, 0);
3019 add_method (acfg, mono_marshal_get_delegate_end_invoke (method));
3021 cattr = mono_custom_attrs_from_class (klass);
3026 for (j = 0; j < cattr->num_attrs; ++j)
3027 if (cattr->attrs [j].ctor && !strcmp (cattr->attrs [j].ctor->klass->name, "MonoNativeFunctionWrapperAttribute"))
3029 if (j < cattr->num_attrs)
3030 add_method (acfg, mono_marshal_get_native_func_wrapper_aot (klass));
3035 /* Synchronized wrappers */
3036 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3037 token = MONO_TOKEN_METHOD_DEF | (i + 1);
3038 method = mono_get_method (acfg->image, token, NULL);
3040 if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED && !method->is_generic)
3041 add_method (acfg, mono_marshal_get_synchronized_wrapper (method));
3044 /* pinvoke wrappers */
3045 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3047 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
3049 method = mono_get_method (acfg->image, token, NULL);
3051 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
3052 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
3053 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
3057 /* native-to-managed wrappers */
3058 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3060 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
3061 MonoCustomAttrInfo *cattr;
3064 method = mono_get_method (acfg->image, token, NULL);
3067 * Only generate native-to-managed wrappers for methods which have an
3068 * attribute named MonoPInvokeCallbackAttribute. We search for the attribute by
3069 * name to avoid defining a new assembly to contain it.
3071 cattr = mono_custom_attrs_from_method (method);
3074 for (j = 0; j < cattr->num_attrs; ++j)
3075 if (cattr->attrs [j].ctor && !strcmp (cattr->attrs [j].ctor->klass->name, "MonoPInvokeCallbackAttribute"))
3077 if (j < cattr->num_attrs) {
3078 MonoCustomAttrEntry *e = &cattr->attrs [j];
3079 MonoMethodSignature *sig = mono_method_signature (e->ctor);
3080 const char *p = (const char*)e->data;
3082 int slen, num_named, named_type, data_type;
3086 char *export_name = NULL;
3087 MonoMethod *wrapper;
3089 /* this cannot be enforced by the C# compiler so we must give the user some warning before aborting */
3090 if (!(method->flags & METHOD_ATTRIBUTE_STATIC)) {
3091 g_warning ("AOT restriction: Method '%s' must be static since it is decorated with [MonoPInvokeCallback]. See http://ios.xamarin.com/Documentation/Limitations#Reverse_Callbacks",
3092 mono_method_full_name (method, TRUE));
3096 g_assert (sig->param_count == 1);
3097 g_assert (sig->params [0]->type == MONO_TYPE_CLASS && !strcmp (mono_class_from_mono_type (sig->params [0])->name, "Type"));
3100 * Decode the cattr manually since we can't create objects
3101 * during aot compilation.
3107 /* From load_cattr_value () in reflection.c */
3108 slen = mono_metadata_decode_value (p, &p);
3109 n = g_memdup (p, slen + 1);
3111 t = mono_reflection_type_from_name (n, acfg->image);
3115 klass = mono_class_from_mono_type (t);
3116 g_assert (klass->parent == mono_defaults.multicastdelegate_class);
3120 num_named = read16 (p);
3123 g_assert (num_named < 2);
3124 if (num_named == 1) {
3127 MonoType *prop_type;
3129 /* parse ExportSymbol attribute */
3131 named_type = *named;
3136 name_len = mono_metadata_decode_blob_size (named, &named);
3137 name = g_malloc (name_len + 1);
3138 memcpy (name, named, name_len);
3139 name [name_len] = 0;
3142 g_assert (named_type == 0x54);
3143 g_assert (!strcmp (name, "ExportSymbol"));
3145 prop_type = &mono_defaults.string_class->byval_arg;
3147 /* load_cattr_value (), string case */
3148 g_assert (*named != (char)0xff);
3149 slen = mono_metadata_decode_value (named, &named);
3150 export_name = g_malloc (slen + 1);
3151 memcpy (export_name, named, slen);
3152 export_name [slen] = 0;
3156 wrapper = mono_marshal_get_managed_wrapper (method, klass, 0);
3157 add_method (acfg, wrapper);
3159 g_hash_table_insert (acfg->export_names, wrapper, export_name);
3163 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
3164 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
3165 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
3169 /* StructureToPtr/PtrToStructure wrappers */
3170 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
3173 token = MONO_TOKEN_TYPE_DEF | (i + 1);
3174 klass = mono_class_get (acfg->image, token);
3177 mono_loader_clear_error ();
3181 if (klass->valuetype && !klass->generic_container && can_marshal_struct (klass)) {
3182 add_method (acfg, mono_marshal_get_struct_to_ptr (klass));
3183 add_method (acfg, mono_marshal_get_ptr_to_struct (klass));
3189 has_type_vars (MonoClass *klass)
3191 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
3194 return has_type_vars (klass->element_class);
3195 if (klass->generic_class) {
3196 MonoGenericContext *context = &klass->generic_class->context;
3197 if (context->class_inst) {
3200 for (i = 0; i < context->class_inst->type_argc; ++i)
3201 if (has_type_vars (mono_class_from_mono_type (context->class_inst->type_argv [i])))
3209 method_has_type_vars (MonoMethod *method)
3211 if (has_type_vars (method->klass))
3214 if (method->is_inflated) {
3215 MonoGenericContext *context = mono_method_get_context (method);
3216 if (context->method_inst) {
3219 for (i = 0; i < context->method_inst->type_argc; ++i)
3220 if (has_type_vars (mono_class_from_mono_type (context->method_inst->type_argv [i])))
3227 static void add_generic_class_with_depth (MonoAotCompile *acfg, MonoClass *klass, int depth, const char *ref);
3230 add_generic_class (MonoAotCompile *acfg, MonoClass *klass, gboolean force, const char *ref)
3232 /* This might lead to a huge code blowup so only do it if neccesary */
3233 if (!acfg->aot_opts.full_aot && !force)
3236 add_generic_class_with_depth (acfg, klass, 0, ref);
3240 check_type_depth (MonoType *t, int depth)
3248 case MONO_TYPE_GENERICINST: {
3249 MonoGenericClass *gklass = t->data.generic_class;
3250 MonoGenericInst *ginst = gklass->context.class_inst;
3253 for (i = 0; i < ginst->type_argc; ++i) {
3254 if (check_type_depth (ginst->type_argv [i], depth + 1))
3268 * add_generic_class:
3270 * Add all methods of a generic class.
3273 add_generic_class_with_depth (MonoAotCompile *acfg, MonoClass *klass, int depth, const char *ref)
3276 MonoClassField *field;
3279 if (!acfg->ginst_hash)
3280 acfg->ginst_hash = g_hash_table_new (NULL, NULL);
3282 mono_class_init (klass);
3284 if (klass->generic_class && klass->generic_class->context.class_inst->is_open)
3287 if (has_type_vars (klass))
3290 if (!klass->generic_class && !klass->rank)
3293 if (!acfg->ginst_hash)
3294 acfg->ginst_hash = g_hash_table_new (NULL, NULL);
3296 if (g_hash_table_lookup (acfg->ginst_hash, klass))
3299 if (check_type_depth (&klass->byval_arg, 0))
3302 if (acfg->aot_opts.log_generics)
3303 printf ("%*sAdding generic instance %s [%s].\n", depth, "", mono_type_full_name (&klass->byval_arg), ref);
3305 g_hash_table_insert (acfg->ginst_hash, klass, klass);
3308 while ((method = mono_class_get_methods (klass, &iter))) {
3309 if (mono_method_is_generic_sharable_impl_full (method, FALSE, FALSE))
3313 if (method->is_generic)
3318 * FIXME: Instances which are referenced by these methods are not added,
3319 * for example Array.Resize<int> for List<int>.Add ().
3321 add_extra_method_with_depth (acfg, method, depth + 1);
3325 while ((field = mono_class_get_fields (klass, &iter))) {
3326 if (field->type->type == MONO_TYPE_GENERICINST)
3327 add_generic_class_with_depth (acfg, mono_class_from_mono_type (field->type), depth + 1, "field");
3330 if (klass->delegate) {
3331 method = mono_get_delegate_invoke (klass);
3333 method = mono_marshal_get_delegate_invoke (method, NULL);
3335 if (acfg->aot_opts.log_generics)
3336 printf ("%*sAdding method %s.\n", depth, "", mono_method_full_name (method, TRUE));
3338 add_method (acfg, method);
3341 /* Add superclasses */
3343 add_generic_class_with_depth (acfg, klass->parent, depth, "parent");
3346 * For ICollection<T>, add instances of the helper methods
3347 * in Array, since a T[] could be cast to ICollection<T>.
3349 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") &&
3350 (!strcmp(klass->name, "ICollection`1") || !strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IList`1") || !strcmp (klass->name, "IEnumerator`1"))) {
3351 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
3352 MonoClass *array_class = mono_bounded_array_class_get (tclass, 1, FALSE);
3356 if (!strcmp (klass->name, "IEnumerator`1"))
3357 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, "IEnumerable`1");
3359 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
3361 /* Add the T[]/InternalEnumerator class */
3362 if (!strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IEnumerator`1")) {
3366 while ((nclass = mono_class_get_nested_types (array_class->parent, &iter))) {
3367 if (!strcmp (nclass->name, "InternalEnumerator`1"))
3371 nclass = mono_class_inflate_generic_class (nclass, mono_generic_class_get_context (klass->generic_class));
3372 add_generic_class (acfg, nclass, FALSE, "ICollection<T>");
3376 while ((method = mono_class_get_methods (array_class, &iter))) {
3377 if (strstr (method->name, name_prefix)) {
3378 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
3380 add_extra_method_with_depth (acfg, m, depth);
3384 g_free (name_prefix);
3387 /* Add an instance of GenericComparer<T> which is created dynamically by Comparer<T> */
3388 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "Comparer`1")) {
3389 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
3390 MonoClass *icomparable, *gcomparer;
3391 MonoGenericContext ctx;
3392 MonoType *args [16];
3394 memset (&ctx, 0, sizeof (ctx));
3396 icomparable = mono_class_from_name (mono_defaults.corlib, "System", "IComparable`1");
3397 g_assert (icomparable);
3398 args [0] = &tclass->byval_arg;
3399 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
3401 if (mono_class_is_assignable_from (mono_class_inflate_generic_class (icomparable, &ctx), tclass)) {
3402 gcomparer = mono_class_from_name (mono_defaults.corlib, "System.Collections.Generic", "GenericComparer`1");
3403 g_assert (gcomparer);
3404 add_generic_class (acfg, mono_class_inflate_generic_class (gcomparer, &ctx), FALSE, "Comparer<T>");
3408 /* Add an instance of GenericEqualityComparer<T> which is created dynamically by EqualityComparer<T> */
3409 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "EqualityComparer`1")) {
3410 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
3411 MonoClass *iface, *gcomparer;
3412 MonoGenericContext ctx;
3413 MonoType *args [16];
3415 memset (&ctx, 0, sizeof (ctx));
3417 iface = mono_class_from_name (mono_defaults.corlib, "System", "IEquatable`1");
3419 args [0] = &tclass->byval_arg;
3420 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
3422 if (mono_class_is_assignable_from (mono_class_inflate_generic_class (iface, &ctx), tclass)) {
3423 gcomparer = mono_class_from_name (mono_defaults.corlib, "System.Collections.Generic", "GenericEqualityComparer`1");
3424 g_assert (gcomparer);
3425 add_generic_class (acfg, mono_class_inflate_generic_class (gcomparer, &ctx), FALSE, "EqualityComparer<T>");
3431 add_instances_of (MonoAotCompile *acfg, MonoClass *klass, MonoType **insts, int ninsts, gboolean force)
3434 MonoGenericContext ctx;
3435 MonoType *args [16];
3437 memset (&ctx, 0, sizeof (ctx));
3439 for (i = 0; i < ninsts; ++i) {
3440 args [0] = insts [i];
3441 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
3442 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx), force, "");
3447 add_types_from_method_header (MonoAotCompile *acfg, MonoMethod *method)
3449 MonoMethodHeader *header;
3450 MonoMethodSignature *sig;
3453 depth = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_depth, method));
3455 sig = mono_method_signature (method);
3458 for (j = 0; j < sig->param_count; ++j)
3459 if (sig->params [j]->type == MONO_TYPE_GENERICINST)
3460 add_generic_class_with_depth (acfg, mono_class_from_mono_type (sig->params [j]), depth + 1, "arg");
3463 header = mono_method_get_header (method);
3466 for (j = 0; j < header->num_locals; ++j)
3467 if (header->locals [j]->type == MONO_TYPE_GENERICINST)
3468 add_generic_class_with_depth (acfg, mono_class_from_mono_type (header->locals [j]), depth + 1, "local");
3473 * add_generic_instances:
3475 * Add instances referenced by the METHODSPEC/TYPESPEC table.
3478 add_generic_instances (MonoAotCompile *acfg)
3483 MonoGenericContext *context;
3485 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHODSPEC].rows; ++i) {
3486 token = MONO_TOKEN_METHOD_SPEC | (i + 1);
3487 method = mono_get_method (acfg->image, token, NULL);
3492 if (method->klass->image != acfg->image)
3495 context = mono_method_get_context (method);
3497 if (context && ((context->class_inst && context->class_inst->is_open)))
3501 * For open methods, create an instantiation which can be passed to the JIT.
3502 * FIXME: Handle class_inst as well.
3504 if (context && context->method_inst && context->method_inst->is_open) {
3505 MonoGenericContext shared_context;
3506 MonoGenericInst *inst;
3507 MonoType **type_argv;
3509 MonoMethod *declaring_method;
3510 gboolean supported = TRUE;
3512 /* Check that the context doesn't contain open constructed types */
3513 if (context->class_inst) {
3514 inst = context->class_inst;
3515 for (i = 0; i < inst->type_argc; ++i) {
3516 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)
3518 if (mono_class_is_open_constructed_type (inst->type_argv [i]))
3522 if (context->method_inst) {
3523 inst = context->method_inst;
3524 for (i = 0; i < inst->type_argc; ++i) {
3525 if (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR)
3527 if (mono_class_is_open_constructed_type (inst->type_argv [i]))
3535 memset (&shared_context, 0, sizeof (MonoGenericContext));
3537 inst = context->class_inst;
3539 type_argv = g_new0 (MonoType*, inst->type_argc);
3540 for (i = 0; i < inst->type_argc; ++i) {
3541 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)
3542 type_argv [i] = &mono_defaults.object_class->byval_arg;
3544 type_argv [i] = inst->type_argv [i];
3547 shared_context.class_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
3551 inst = context->method_inst;
3553 type_argv = g_new0 (MonoType*, inst->type_argc);
3554 for (i = 0; i < inst->type_argc; ++i) {
3555 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)
3556 type_argv [i] = &mono_defaults.object_class->byval_arg;
3558 type_argv [i] = inst->type_argv [i];
3561 shared_context.method_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
3565 if (method->is_generic || method->klass->generic_container)
3566 declaring_method = method;
3568 declaring_method = mono_method_get_declaring_generic_method (method);
3570 method = mono_class_inflate_generic_method (declaring_method, &shared_context);
3574 * If the method is fully sharable, it was already added in place of its
3575 * generic definition.
3577 if (mono_method_is_generic_sharable_impl_full (method, FALSE, FALSE))
3581 * FIXME: Partially shared methods are not shared here, so we end up with
3582 * many identical methods.
3584 add_extra_method (acfg, method);
3587 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
3590 token = MONO_TOKEN_TYPE_SPEC | (i + 1);
3592 klass = mono_class_get (acfg->image, token);
3593 if (!klass || klass->rank) {
3594 mono_loader_clear_error ();
3598 add_generic_class (acfg, klass, FALSE, "typespec");
3601 /* Add types of args/locals */
3602 for (i = 0; i < acfg->methods->len; ++i) {
3603 method = g_ptr_array_index (acfg->methods, i);
3604 add_types_from_method_header (acfg, method);
3607 if (acfg->image == mono_defaults.corlib) {
3609 MonoType *insts [256];
3612 insts [ninsts ++] = &mono_defaults.byte_class->byval_arg;
3613 insts [ninsts ++] = &mono_defaults.sbyte_class->byval_arg;
3614 insts [ninsts ++] = &mono_defaults.int16_class->byval_arg;
3615 insts [ninsts ++] = &mono_defaults.uint16_class->byval_arg;
3616 insts [ninsts ++] = &mono_defaults.int32_class->byval_arg;
3617 insts [ninsts ++] = &mono_defaults.uint32_class->byval_arg;
3618 insts [ninsts ++] = &mono_defaults.int64_class->byval_arg;
3619 insts [ninsts ++] = &mono_defaults.uint64_class->byval_arg;
3620 insts [ninsts ++] = &mono_defaults.single_class->byval_arg;
3621 insts [ninsts ++] = &mono_defaults.double_class->byval_arg;
3622 insts [ninsts ++] = &mono_defaults.char_class->byval_arg;
3623 insts [ninsts ++] = &mono_defaults.boolean_class->byval_arg;
3625 /* Add GenericComparer<T> instances for primitive types for Enum.ToString () */
3626 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericComparer`1");
3628 add_instances_of (acfg, klass, insts, ninsts, TRUE);
3629 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericEqualityComparer`1");
3631 add_instances_of (acfg, klass, insts, ninsts, TRUE);
3633 /* Add instances of the array generic interfaces for primitive types */
3634 /* This will add instances of the InternalArray_ helper methods in Array too */
3635 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "ICollection`1");
3637 add_instances_of (acfg, klass, insts, ninsts, TRUE);
3638 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "IList`1");
3640 add_instances_of (acfg, klass, insts, ninsts, TRUE);
3641 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "IEnumerable`1");
3643 add_instances_of (acfg, klass, insts, ninsts, TRUE);
3646 * Add a managed-to-native wrapper of Array.GetGenericValueImpl<object>, which is
3647 * used for all instances of GetGenericValueImpl by the AOT runtime.
3650 MonoGenericContext ctx;
3651 MonoType *args [16];
3652 MonoMethod *get_method;
3653 MonoClass *array_klass = mono_array_class_get (mono_defaults.object_class, 1)->parent;
3655 get_method = mono_class_get_method_from_name (array_klass, "GetGenericValueImpl", 2);
3658 memset (&ctx, 0, sizeof (ctx));
3659 args [0] = &mono_defaults.object_class->byval_arg;
3660 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
3661 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (get_method, &ctx), TRUE, TRUE));
3665 /* Same for CompareExchange<T>/Exchange<T> */
3667 MonoGenericContext ctx;
3668 MonoType *args [16];
3670 MonoClass *interlocked_klass = mono_class_from_name (mono_defaults.corlib, "System.Threading", "Interlocked");
3671 gpointer iter = NULL;
3673 while ((m = mono_class_get_methods (interlocked_klass, &iter))) {
3674 if ((!strcmp (m->name, "CompareExchange") || !strcmp (m->name, "Exchange")) && m->is_generic) {
3675 memset (&ctx, 0, sizeof (ctx));
3676 args [0] = &mono_defaults.object_class->byval_arg;
3677 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
3678 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (m, &ctx), TRUE, TRUE));
3686 * is_direct_callable:
3688 * Return whenever the method identified by JI is directly callable without
3689 * going through the PLT.
3692 is_direct_callable (MonoAotCompile *acfg, MonoMethod *method, MonoJumpInfo *patch_info)
3694 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
3695 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
3697 gboolean direct_callable = TRUE;
3699 if (direct_callable && !(!callee_cfg->has_got_slots && (callee_cfg->method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)))
3700 direct_callable = FALSE;
3701 if ((callee_cfg->method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) && (!method || method->wrapper_type != MONO_WRAPPER_SYNCHRONIZED))
3702 // FIXME: Maybe call the wrapper directly ?
3703 direct_callable = FALSE;
3705 if (acfg->aot_opts.soft_debug) {
3706 /* Disable this so all calls go through load_method (), see the
3707 * mini_get_debug_options ()->load_aot_jit_info_eagerly = TRUE; line in
3708 * mono_debugger_agent_init ().
3710 direct_callable = FALSE;
3713 if (direct_callable)
3716 } else if ((patch_info->type == MONO_PATCH_INFO_ICALL_ADDR && patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
3717 if (acfg->aot_opts.direct_pinvoke)
3719 } else if (patch_info->type == MONO_PATCH_INFO_ICALL_ADDR) {
3720 if (acfg->aot_opts.direct_icalls)
3729 get_pinvoke_import (MonoAotCompile *acfg, MonoMethod *method)
3731 MonoImage *image = method->klass->image;
3732 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
3733 MonoTableInfo *tables = image->tables;
3734 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
3735 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
3736 guint32 im_cols [MONO_IMPLMAP_SIZE];
3739 import = g_hash_table_lookup (acfg->method_to_pinvoke_import, method);
3743 if (!piinfo->implmap_idx || piinfo->implmap_idx > im->rows)
3746 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
3748 if (!im_cols [MONO_IMPLMAP_SCOPE] || im_cols [MONO_IMPLMAP_SCOPE] > mr->rows)
3751 import = g_strdup_printf ("%s", mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]));
3753 g_hash_table_insert (acfg->method_to_pinvoke_import, method, import);
3759 * emit_and_reloc_code:
3761 * Emit the native code in CODE, handling relocations along the way. If GOT_ONLY
3762 * is true, calls are made through the GOT too. This is used for emitting trampolines
3763 * in full-aot mode, since calls made from trampolines couldn't go through the PLT,
3764 * since trampolines are needed to make PTL work.
3767 emit_and_reloc_code (MonoAotCompile *acfg, MonoMethod *method, guint8 *code, guint32 code_len, MonoJumpInfo *relocs, gboolean got_only)
3769 int i, pindex, start_index, method_index;
3771 MonoJumpInfo *patch_info;
3772 MonoMethodHeader *header;
3773 gboolean skip, direct_call;
3775 char direct_call_target [1024];
3776 const char *direct_pinvoke;
3779 header = mono_method_get_header (method);
3781 method_index = get_method_index (acfg, method);
3784 /* Collect and sort relocations */
3785 patches = g_ptr_array_new ();
3786 for (patch_info = relocs; patch_info; patch_info = patch_info->next)
3787 g_ptr_array_add (patches, patch_info);
3788 g_ptr_array_sort (patches, compare_patches);
3791 for (i = 0; i < code_len; i++) {
3793 for (pindex = start_index; pindex < patches->len; ++pindex) {
3794 patch_info = g_ptr_array_index (patches, pindex);
3795 if (patch_info->ip.i >= i)
3799 #ifdef MONO_ARCH_AOT_SUPPORTED
3801 if (patch_info && (patch_info->ip.i == i) && (pindex < patches->len)) {
3802 start_index = pindex;
3804 switch (patch_info->type) {
3805 case MONO_PATCH_INFO_NONE:
3807 case MONO_PATCH_INFO_GOT_OFFSET: {
3810 arch_emit_got_offset (acfg, code + i, &code_size);
3813 patch_info->type = MONO_PATCH_INFO_NONE;
3818 * If this patch is a call, try emitting a direct call instead of
3819 * through a PLT entry. This is possible if the called method is in
3820 * the same assembly and requires no initialization.
3822 direct_call = FALSE;
3823 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
3824 if (!got_only && is_direct_callable (acfg, method, patch_info)) {
3825 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
3826 //printf ("DIRECT: %s %s\n", method ? mono_method_full_name (method, TRUE) : "", mono_method_full_name (callee_cfg->method, TRUE));
3828 g_assert (strlen (callee_cfg->asm_symbol) < 1000);
3829 sprintf (direct_call_target, "%s", callee_cfg->asm_symbol);
3832 acfg->stats.all_calls ++;
3833 } else if (patch_info->type == MONO_PATCH_INFO_ICALL_ADDR) {
3834 if (!got_only && is_direct_callable (acfg, method, patch_info)) {
3835 if (!(patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
3836 direct_pinvoke = mono_lookup_icall_symbol (patch_info->data.method);
3838 direct_pinvoke = get_pinvoke_import (acfg, patch_info->data.method);
3839 if (direct_pinvoke) {
3841 #if defined(__APPLE__)
3847 g_assert (strlen (direct_pinvoke) < 1000);
3848 sprintf (direct_call_target, "%s%s", prefix, direct_pinvoke);
3854 patch_info->type = MONO_PATCH_INFO_NONE;
3855 acfg->stats.direct_calls ++;
3858 if (!got_only && !direct_call) {
3859 MonoPltEntry *plt_entry = get_plt_entry (acfg, patch_info);
3861 /* This patch has a PLT entry, so we must emit a call to the PLT entry */
3863 sprintf (direct_call_target, "%s", plt_entry->symbol);
3865 /* Nullify the patch */
3866 patch_info->type = MONO_PATCH_INFO_NONE;
3867 plt_entry->jit_used = TRUE;
3874 arch_emit_direct_call (acfg, direct_call_target, &call_size);
3879 got_slot = get_got_offset (acfg, patch_info);
3881 arch_emit_got_access (acfg, code + i, got_slot, &code_size);
3888 #endif /* MONO_ARCH_AOT_SUPPORTED */
3891 /* Find next patch */
3893 for (pindex = start_index; pindex < patches->len; ++pindex) {
3894 patch_info = g_ptr_array_index (patches, pindex);
3895 if (patch_info->ip.i >= i)
3899 /* Try to emit multiple bytes at once */
3900 if (pindex < patches->len && patch_info->ip.i > i) {
3901 emit_bytes (acfg, code + i, patch_info->ip.i - i);
3902 i = patch_info->ip.i - 1;
3904 emit_bytes (acfg, code + i, 1);
3913 * Modify SYMBOL so it only includes characters permissible in symbols.
3916 sanitize_symbol (char *symbol)
3918 int i, len = strlen (symbol);
3920 for (i = 0; i < len; ++i)
3921 if (!isalnum (symbol [i]) && (symbol [i] != '_'))
3926 get_debug_sym (MonoMethod *method, const char *prefix, GHashTable *cache)
3928 char *name1, *name2, *cached;
3929 int i, j, len, count;
3931 name1 = mono_method_full_name (method, TRUE);
3932 len = strlen (name1);
3933 name2 = malloc (strlen (prefix) + len + 16);
3934 memcpy (name2, prefix, strlen (prefix));
3935 j = strlen (prefix);
3936 for (i = 0; i < len; ++i) {
3937 if (isalnum (name1 [i])) {
3938 name2 [j ++] = name1 [i];
3939 } else if (name1 [i] == ' ' && name1 [i + 1] == '(' && name1 [i + 2] == ')') {
3941 } else if (name1 [i] == ',' && name1 [i + 1] == ' ') {
3944 } else if (name1 [i] == '(' || name1 [i] == ')' || name1 [i] == '>') {
3953 while (g_hash_table_lookup (cache, name2)) {
3954 sprintf (name2 + j, "_%d", count);
3958 cached = g_strdup (name2);
3959 g_hash_table_insert (cache, cached, cached);
3965 emit_method_code (MonoAotCompile *acfg, MonoCompile *cfg)
3970 char *debug_sym = NULL;
3972 int func_alignment = AOT_FUNC_ALIGNMENT;
3973 MonoMethodHeader *header;
3976 method = cfg->orig_method;
3977 code = cfg->native_code;
3978 header = cfg->header;
3980 method_index = get_method_index (acfg, method);
3982 /* Make the labels local */
3983 sprintf (symbol, "%s", cfg->asm_symbol);
3985 emit_section_change (acfg, ".text", 0);
3986 emit_alignment (acfg, func_alignment);
3987 emit_label (acfg, symbol);
3989 if (acfg->aot_opts.write_symbols) {
3991 * Write a C style symbol for every method, this has two uses:
3992 * - it works on platforms where the dwarf debugging info is not
3994 * - it allows the setting of breakpoints of aot-ed methods.
3996 debug_sym = get_debug_sym (method, "", acfg->method_label_hash);
3998 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
3999 if (acfg->need_no_dead_strip)
4000 fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym);
4001 emit_local_symbol (acfg, debug_sym, symbol, TRUE);
4002 emit_label (acfg, debug_sym);
4005 export_name = g_hash_table_lookup (acfg->export_names, method);
4007 /* Emit a global symbol for the method */
4008 emit_global_inner (acfg, export_name, TRUE);
4009 emit_label (acfg, export_name);
4012 if (cfg->verbose_level > 0)
4013 g_print ("Method %s emitted as %s\n", mono_method_full_name (method, TRUE), symbol);
4015 acfg->stats.code_size += cfg->code_len;
4017 acfg->cfgs [method_index]->got_offset = acfg->got_offset;
4019 emit_and_reloc_code (acfg, method, code, cfg->code_len, cfg->patch_info, FALSE);
4023 if (acfg->aot_opts.write_symbols) {
4024 emit_symbol_size (acfg, debug_sym, ".");
4028 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
4029 emit_label (acfg, symbol);
4035 * Encode PATCH_INFO into its disk representation.
4038 encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info, guint8 *buf, guint8 **endbuf)
4042 switch (patch_info->type) {
4043 case MONO_PATCH_INFO_NONE:
4045 case MONO_PATCH_INFO_IMAGE:
4046 encode_value (get_image_index (acfg, patch_info->data.image), p, &p);
4048 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
4049 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
4050 case MONO_PATCH_INFO_CASTCLASS_CACHE:
4052 case MONO_PATCH_INFO_METHOD_REL:
4053 encode_value ((gint)patch_info->data.offset, p, &p);
4055 case MONO_PATCH_INFO_SWITCH: {
4056 gpointer *table = (gpointer *)patch_info->data.table->table;
4059 encode_value (patch_info->data.table->table_size, p, &p);
4060 for (k = 0; k < patch_info->data.table->table_size; k++)
4061 encode_value ((int)(gssize)table [k], p, &p);
4064 case MONO_PATCH_INFO_METHODCONST:
4065 case MONO_PATCH_INFO_METHOD:
4066 case MONO_PATCH_INFO_METHOD_JUMP:
4067 case MONO_PATCH_INFO_ICALL_ADDR:
4068 case MONO_PATCH_INFO_METHOD_RGCTX:
4069 encode_method_ref (acfg, patch_info->data.method, p, &p);
4071 case MONO_PATCH_INFO_INTERNAL_METHOD:
4072 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
4073 guint32 len = strlen (patch_info->data.name);
4075 encode_value (len, p, &p);
4077 memcpy (p, patch_info->data.name, len);
4082 case MONO_PATCH_INFO_LDSTR: {
4083 guint32 image_index = get_image_index (acfg, patch_info->data.token->image);
4084 guint32 token = patch_info->data.token->token;
4085 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_STRING);
4086 encode_value (image_index, p, &p);
4087 encode_value (patch_info->data.token->token - MONO_TOKEN_STRING, p, &p);
4090 case MONO_PATCH_INFO_RVA:
4091 case MONO_PATCH_INFO_DECLSEC:
4092 case MONO_PATCH_INFO_LDTOKEN:
4093 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4094 encode_value (get_image_index (acfg, patch_info->data.token->image), p, &p);
4095 encode_value (patch_info->data.token->token, p, &p);
4096 encode_value (patch_info->data.token->has_context, p, &p);
4097 if (patch_info->data.token->has_context)
4098 encode_generic_context (acfg, &patch_info->data.token->context, p, &p);
4100 case MONO_PATCH_INFO_EXC_NAME: {
4101 MonoClass *ex_class;
4104 mono_class_from_name (mono_defaults.exception_class->image,
4105 "System", patch_info->data.target);
4106 g_assert (ex_class);
4107 encode_klass_ref (acfg, ex_class, p, &p);
4110 case MONO_PATCH_INFO_R4:
4111 encode_value (*((guint32 *)patch_info->data.target), p, &p);
4113 case MONO_PATCH_INFO_R8:
4114 encode_value (((guint32 *)patch_info->data.target) [MINI_LS_WORD_IDX], p, &p);
4115 encode_value (((guint32 *)patch_info->data.target) [MINI_MS_WORD_IDX], p, &p);
4117 case MONO_PATCH_INFO_VTABLE:
4118 case MONO_PATCH_INFO_CLASS:
4119 case MONO_PATCH_INFO_IID:
4120 case MONO_PATCH_INFO_ADJUSTED_IID:
4121 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
4123 case MONO_PATCH_INFO_CLASS_INIT:
4124 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
4125 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
4127 case MONO_PATCH_INFO_FIELD:
4128 case MONO_PATCH_INFO_SFLDA:
4129 encode_field_info (acfg, patch_info->data.field, p, &p);
4131 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
4133 case MONO_PATCH_INFO_RGCTX_FETCH: {
4134 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
4139 * entry->method has a lenghtly encoding and multiple rgctx_fetch entries
4140 * reference the same method, so encode the method only once.
4142 offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_blob_hash, entry->method));
4144 buf2 = g_malloc (1024);
4147 encode_method_ref (acfg, entry->method, p2, &p2);
4148 g_assert (p2 - buf2 < 1024);
4150 offset = add_to_blob (acfg, buf2, p2 - buf2);
4153 g_hash_table_insert (acfg->method_blob_hash, entry->method, GUINT_TO_POINTER (offset + 1));
4158 encode_value (offset, p, &p);
4159 g_assert (entry->info_type < 256);
4160 g_assert (entry->data->type < 256);
4161 encode_value ((entry->in_mrgctx ? 1 : 0) | (entry->info_type << 1) | (entry->data->type << 9), p, &p);
4162 encode_patch (acfg, entry->data, p, &p);
4165 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
4166 case MONO_PATCH_INFO_MONITOR_ENTER:
4167 case MONO_PATCH_INFO_MONITOR_EXIT:
4168 case MONO_PATCH_INFO_SEQ_POINT_INFO:
4170 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
4171 encode_method_ref (acfg, patch_info->data.imt_tramp->method, p, &p);
4172 encode_value (patch_info->data.imt_tramp->vt_offset, p, &p);
4174 case MONO_PATCH_INFO_SIGNATURE:
4175 encode_signature (acfg, (MonoMethodSignature*)patch_info->data.target, p, &p);
4178 g_warning ("unable to handle jump info %d", patch_info->type);
4179 g_assert_not_reached ();
4186 encode_patch_list (MonoAotCompile *acfg, GPtrArray *patches, int n_patches, int first_got_offset, guint8 *buf, guint8 **endbuf)
4189 guint32 pindex, offset;
4190 MonoJumpInfo *patch_info;
4192 encode_value (n_patches, p, &p);
4194 for (pindex = 0; pindex < patches->len; ++pindex) {
4195 patch_info = g_ptr_array_index (patches, pindex);
4197 if (patch_info->type == MONO_PATCH_INFO_NONE || patch_info->type == MONO_PATCH_INFO_BB)
4201 offset = get_got_offset (acfg, patch_info);
4202 encode_value (offset, p, &p);
4209 emit_method_info (MonoAotCompile *acfg, MonoCompile *cfg)
4213 int pindex, buf_size, n_patches;
4215 MonoJumpInfo *patch_info;
4216 MonoMethodHeader *header;
4217 guint32 method_index;
4219 guint32 first_got_offset;
4221 method = cfg->orig_method;
4222 header = mono_method_get_header (method);
4224 method_index = get_method_index (acfg, method);
4226 /* Sort relocations */
4227 patches = g_ptr_array_new ();
4228 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next)
4229 g_ptr_array_add (patches, patch_info);
4230 g_ptr_array_sort (patches, compare_patches);
4232 first_got_offset = acfg->cfgs [method_index]->got_offset;
4234 /**********************/
4235 /* Encode method info */
4236 /**********************/
4238 buf_size = (patches->len < 1000) ? 40960 : 40960 + (patches->len * 64);
4239 p = buf = g_malloc (buf_size);
4241 if (mono_class_get_cctor (method->klass))
4242 encode_klass_ref (acfg, method->klass, p, &p);
4244 /* Not needed when loading the method */
4245 encode_value (0, p, &p);
4248 if (cfg->opt & MONO_OPT_SHARED) {
4249 encode_value (g_list_length (cfg->ldstr_list), p, &p);
4250 for (l = cfg->ldstr_list; l; l = l->next) {
4251 encode_value ((long)l->data, p, &p);
4255 /* Used only in shared mode */
4256 g_assert (!cfg->ldstr_list);
4259 for (pindex = 0; pindex < patches->len; ++pindex) {
4260 patch_info = g_ptr_array_index (patches, pindex);
4262 if ((patch_info->type == MONO_PATCH_INFO_GOT_OFFSET) ||
4263 (patch_info->type == MONO_PATCH_INFO_NONE)) {
4264 patch_info->type = MONO_PATCH_INFO_NONE;
4269 if ((patch_info->type == MONO_PATCH_INFO_IMAGE) && (patch_info->data.image == acfg->image)) {
4270 /* Stored in a GOT slot initialized at module load time */
4271 patch_info->type = MONO_PATCH_INFO_NONE;
4275 if (patch_info->type == MONO_PATCH_INFO_GC_CARD_TABLE_ADDR) {
4276 /* Stored in a GOT slot initialized at module load time */
4277 patch_info->type = MONO_PATCH_INFO_NONE;
4281 if (is_plt_patch (patch_info)) {
4282 /* Calls are made through the PLT */
4283 patch_info->type = MONO_PATCH_INFO_NONE;
4291 g_assert (cfg->has_got_slots);
4293 encode_patch_list (acfg, patches, n_patches, first_got_offset, p, &p);
4295 acfg->stats.info_size += p - buf;
4297 g_assert (p - buf < buf_size);
4299 cfg->method_info_offset = add_to_blob (acfg, buf, p - buf);
4304 get_unwind_info_offset (MonoAotCompile *acfg, guint8 *encoded, guint32 encoded_len)
4306 guint32 cache_index;
4309 /* Reuse the unwind module to canonize and store unwind info entries */
4310 cache_index = mono_cache_unwind_info (encoded, encoded_len);
4312 /* Use +/- 1 to distinguish 0s from missing entries */
4313 offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1)));
4321 * It would be easier to use assembler symbols, but the caller needs an
4324 offset = acfg->unwind_info_offset;
4325 g_hash_table_insert (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1), GUINT_TO_POINTER (offset + 1));
4326 g_ptr_array_add (acfg->unwind_ops, GUINT_TO_POINTER (cache_index));
4329 encode_value (encoded_len, p, &p);
4331 acfg->unwind_info_offset += encoded_len + (p - buf);
4337 emit_exception_debug_info (MonoAotCompile *acfg, MonoCompile *cfg)
4340 int i, k, buf_size, method_index;
4341 guint32 debug_info_size;
4343 MonoMethodHeader *header;
4344 guint8 *p, *buf, *debug_info;
4345 MonoJitInfo *jinfo = cfg->jit_info;
4347 gboolean use_unwind_ops = FALSE;
4348 MonoSeqPointInfo *seq_points;
4350 method = cfg->orig_method;
4351 code = cfg->native_code;
4352 header = cfg->header;
4354 method_index = get_method_index (acfg, method);
4356 if (!acfg->aot_opts.nodebug) {
4357 mono_debug_serialize_debug_info (cfg, &debug_info, &debug_info_size);
4360 debug_info_size = 0;
4363 seq_points = cfg->seq_point_info;
4365 buf_size = header->num_clauses * 256 + debug_info_size + 2048 + (seq_points ? (seq_points->len * 64) : 0) + cfg->gc_map_size;
4366 p = buf = g_malloc (buf_size);
4368 #ifdef MONO_ARCH_HAVE_XP_UNWIND
4369 use_unwind_ops = cfg->unwind_ops != NULL;
4372 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);
4374 encode_value (flags, p, &p);
4376 if (use_unwind_ops) {
4377 guint32 encoded_len;
4381 * This is a duplicate of the data in the .debug_frame section, but that
4382 * section cannot be accessed using the dl interface.
4384 encoded = mono_unwind_ops_encode (cfg->unwind_ops, &encoded_len);
4385 encode_value (get_unwind_info_offset (acfg, encoded, encoded_len), p, &p);
4388 encode_value (jinfo->used_regs, p, &p);
4391 /*Encode the number of holes before the number of clauses to make decoding easier*/
4392 if (jinfo->has_try_block_holes) {
4393 MonoTryBlockHoleTableJitInfo *table = mono_jit_info_get_try_block_hole_table_info (jinfo);
4394 encode_value (table->num_holes, p, &p);
4397 /* Exception table */
4398 if (cfg->compile_llvm) {
4400 * When using LLVM, we can't emit some data, like pc offsets, this reg/offset etc.,
4401 * since the information is only available to llc. Instead, we let llc save the data
4402 * into the LSDA, and read it from there at runtime.
4404 /* The assembly might be CIL stripped so emit the data ourselves */
4405 if (header->num_clauses)
4406 encode_value (header->num_clauses, p, &p);
4408 for (k = 0; k < header->num_clauses; ++k) {
4409 MonoExceptionClause *clause;
4411 clause = &header->clauses [k];
4413 encode_value (clause->flags, p, &p);
4414 if (clause->data.catch_class) {
4415 encode_value (1, p, &p);
4416 encode_klass_ref (acfg, clause->data.catch_class, p, &p);
4418 encode_value (0, p, &p);
4421 /* Emit a list of nesting clauses */
4422 for (i = 0; i < header->num_clauses; ++i) {
4424 MonoExceptionClause *clause1 = &header->clauses [cindex1];
4426 MonoExceptionClause *clause2 = &header->clauses [cindex2];
4428 if (cindex1 != cindex2 && clause1->try_offset >= clause2->try_offset && clause1->handler_offset <= clause2->handler_offset)
4429 encode_value (i, p, &p);
4431 encode_value (-1, p, &p);
4434 if (jinfo->num_clauses)
4435 encode_value (jinfo->num_clauses, p, &p);
4437 for (k = 0; k < jinfo->num_clauses; ++k) {
4438 MonoJitExceptionInfo *ei = &jinfo->clauses [k];
4440 encode_value (ei->flags, p, &p);
4441 encode_value (ei->exvar_offset, p, &p);
4443 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
4444 encode_value ((gint)((guint8*)ei->data.filter - code), p, &p);
4446 if (ei->data.catch_class) {
4447 encode_value (1, p, &p);
4448 encode_klass_ref (acfg, ei->data.catch_class, p, &p);
4450 encode_value (0, p, &p);
4454 encode_value ((gint)((guint8*)ei->try_start - code), p, &p);
4455 encode_value ((gint)((guint8*)ei->try_end - code), p, &p);
4456 encode_value ((gint)((guint8*)ei->handler_start - code), p, &p);
4460 if (jinfo->has_generic_jit_info) {
4461 MonoGenericJitInfo *gi = mono_jit_info_get_generic_jit_info (jinfo);
4465 encode_value (gi->nlocs, p, &p);
4467 for (i = 0; i < gi->nlocs; ++i) {
4468 MonoDwarfLocListEntry *entry = &gi->locations [i];
4470 encode_value (entry->is_reg ? 1 : 0, p, &p);
4471 encode_value (entry->reg, p, &p);
4473 encode_value (entry->offset, p, &p);
4475 g_assert (entry->from == 0);
4477 encode_value (entry->from, p, &p);
4478 encode_value (entry->to, p, &p);
4481 if (!cfg->compile_llvm) {
4482 encode_value (gi->has_this ? 1 : 0, p, &p);
4483 encode_value (gi->this_reg, p, &p);
4484 encode_value (gi->this_offset, p, &p);
4489 * Need to encode jinfo->method too, since it is not equal to 'method'
4490 * when using generic sharing.
4492 encode_method_ref (acfg, jinfo->method, p, &p);
4495 if (jinfo->has_try_block_holes) {
4496 MonoTryBlockHoleTableJitInfo *table = mono_jit_info_get_try_block_hole_table_info (jinfo);
4497 for (i = 0; i < table->num_holes; ++i) {
4498 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
4499 encode_value (hole->clause, p, &p);
4500 encode_value (hole->length, p, &p);
4501 encode_value (hole->offset, p, &p);
4505 if (jinfo->has_arch_eh_info) {
4506 MonoArchEHJitInfo *eh_info;
4508 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
4509 encode_value (eh_info->stack_size, p, &p);
4513 int il_offset, native_offset, last_il_offset, last_native_offset, j;
4515 encode_value (seq_points->len, p, &p);
4516 last_il_offset = last_native_offset = 0;
4517 for (i = 0; i < seq_points->len; ++i) {
4518 SeqPoint *sp = &seq_points->seq_points [i];
4519 il_offset = sp->il_offset;
4520 native_offset = sp->native_offset;
4521 encode_value (il_offset - last_il_offset, p, &p);
4522 encode_value (native_offset - last_native_offset, p, &p);
4523 last_il_offset = il_offset;
4524 last_native_offset = native_offset;
4526 encode_value (sp->next_len, p, &p);
4527 for (j = 0; j < sp->next_len; ++j)
4528 encode_value (sp->next [j], p, &p);
4532 g_assert (debug_info_size < buf_size);
4534 encode_value (debug_info_size, p, &p);
4535 if (debug_info_size) {
4536 memcpy (p, debug_info, debug_info_size);
4537 p += debug_info_size;
4538 g_free (debug_info);
4543 encode_value (cfg->gc_map_size, p, &p);
4544 /* The GC map requires 4 bytes of alignment */
4545 while ((gsize)p % 4)
4547 memcpy (p, cfg->gc_map, cfg->gc_map_size);
4548 p += cfg->gc_map_size;
4551 acfg->stats.ex_info_size += p - buf;
4553 g_assert (p - buf < buf_size);
4556 /* The GC Map requires 4 byte alignment */
4557 cfg->ex_info_offset = add_to_blob_aligned (acfg, buf, p - buf, cfg->gc_map ? 4 : 1);
4562 emit_klass_info (MonoAotCompile *acfg, guint32 token)
4564 MonoClass *klass = mono_class_get (acfg->image, token);
4566 int i, buf_size, res;
4567 gboolean no_special_static, cant_encode;
4568 gpointer iter = NULL;
4571 mono_loader_clear_error ();
4575 p = buf = g_malloc (buf_size);
4577 /* Mark as unusable */
4578 encode_value (-1, p, &p);
4580 res = add_to_blob (acfg, buf, p - buf);
4586 buf_size = 10240 + (klass->vtable_size * 16);
4587 p = buf = g_malloc (buf_size);
4591 mono_class_init (klass);
4593 mono_class_get_nested_types (klass, &iter);
4594 g_assert (klass->nested_classes_inited);
4596 mono_class_setup_vtable (klass);
4599 * Emit all the information which is required for creating vtables so
4600 * the runtime does not need to create the MonoMethod structures which
4601 * take up a lot of space.
4604 no_special_static = !mono_class_has_special_static_fields (klass);
4606 /* Check whenever we have enough info to encode the vtable */
4607 cant_encode = FALSE;
4608 for (i = 0; i < klass->vtable_size; ++i) {
4609 MonoMethod *cm = klass->vtable [i];
4611 if (cm && mono_method_signature (cm)->is_inflated && !g_hash_table_lookup (acfg->token_info_hash, cm))
4615 mono_class_has_finalizer (klass);
4617 if (klass->generic_container || cant_encode) {
4618 encode_value (-1, p, &p);
4620 encode_value (klass->vtable_size, p, &p);
4621 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);
4622 if (klass->has_cctor)
4623 encode_method_ref (acfg, mono_class_get_cctor (klass), p, &p);
4624 if (klass->has_finalize)
4625 encode_method_ref (acfg, mono_class_get_finalizer (klass), p, &p);
4627 encode_value (klass->instance_size, p, &p);
4628 encode_value (mono_class_data_size (klass), p, &p);
4629 encode_value (klass->packing_size, p, &p);
4630 encode_value (klass->min_align, p, &p);
4632 for (i = 0; i < klass->vtable_size; ++i) {
4633 MonoMethod *cm = klass->vtable [i];
4636 encode_method_ref (acfg, cm, p, &p);
4638 encode_value (0, p, &p);
4642 acfg->stats.class_info_size += p - buf;
4644 g_assert (p - buf < buf_size);
4645 res = add_to_blob (acfg, buf, p - buf);
4652 get_plt_entry_debug_sym (MonoAotCompile *acfg, MonoJumpInfo *ji, GHashTable *cache)
4654 char *debug_sym = NULL;
4657 case MONO_PATCH_INFO_METHOD:
4658 debug_sym = get_debug_sym (ji->data.method, "plt_", cache);
4660 case MONO_PATCH_INFO_INTERNAL_METHOD:
4661 debug_sym = g_strdup_printf ("plt__jit_icall_%s", ji->data.name);
4663 case MONO_PATCH_INFO_CLASS_INIT:
4664 debug_sym = g_strdup_printf ("plt__class_init_%s", mono_type_get_name (&ji->data.klass->byval_arg));
4665 sanitize_symbol (debug_sym);
4667 case MONO_PATCH_INFO_RGCTX_FETCH:
4668 debug_sym = g_strdup_printf ("plt__rgctx_fetch_%d", acfg->label_generator ++);
4670 case MONO_PATCH_INFO_ICALL_ADDR: {
4671 char *s = get_debug_sym (ji->data.method, "", cache);
4673 debug_sym = g_strdup_printf ("plt__icall_native_%s", s);
4677 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
4678 debug_sym = g_strdup_printf ("plt__jit_icall_native_%s", ji->data.name);
4680 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
4681 debug_sym = g_strdup_printf ("plt__generic_class_init");
4691 * Calls made from AOTed code are routed through a table of jumps similar to the
4692 * ELF PLT (Program Linkage Table). Initially the PLT entries jump to code which transfers
4693 * control to the AOT runtime through a trampoline.
4696 emit_plt (MonoAotCompile *acfg)
4702 sprintf (symbol, "plt");
4704 emit_section_change (acfg, ".text", 0);
4705 emit_alignment (acfg, NACL_SIZE(16, kNaClAlignment));
4706 emit_label (acfg, symbol);
4707 emit_label (acfg, acfg->plt_symbol);
4709 for (i = 0; i < acfg->plt_offset; ++i) {
4710 char *debug_sym = NULL;
4711 MonoPltEntry *plt_entry = NULL;
4716 * The first plt entry is unused.
4720 plt_entry = g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
4725 * If the target is directly callable, alias the plt symbol to point to
4727 * FIXME: Use this to simplify emit_and_reloc_code ().
4728 * FIXME: Avoid the got slot.
4729 * FIXME: Add support to the binary writer.
4731 if (ji && is_direct_callable (acfg, NULL, ji) && !acfg->use_bin_writer) {
4732 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, ji->data.method);
4735 if (acfg->thumb_mixed && !callee_cfg->compile_llvm) {
4736 /* LLVM calls the PLT entries using bl, so emit a stub */
4737 fprintf (acfg->fp, "\n.thumb_func\n");
4738 emit_label (acfg, plt_entry->llvm_symbol);
4739 fprintf (acfg->fp, "bx pc\n");
4740 fprintf (acfg->fp, "nop\n");
4741 fprintf (acfg->fp, ".arm\n");
4742 fprintf (acfg->fp, "b %s\n", callee_cfg->asm_symbol);
4744 fprintf (acfg->fp, "\n.set %s, %s\n", plt_entry->llvm_symbol, callee_cfg->asm_symbol);
4751 debug_sym = plt_entry->debug_sym;
4753 if (acfg->thumb_mixed && !plt_entry->jit_used)
4754 /* Emit only a thumb version */
4757 if (!acfg->thumb_mixed)
4758 emit_label (acfg, plt_entry->llvm_symbol);
4761 if (acfg->need_no_dead_strip)
4762 fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym);
4763 emit_local_symbol (acfg, debug_sym, NULL, TRUE);
4764 emit_label (acfg, debug_sym);
4767 emit_label (acfg, plt_entry->symbol);
4769 arch_emit_plt_entry (acfg, i);
4772 emit_symbol_size (acfg, debug_sym, ".");
4775 if (acfg->thumb_mixed) {
4776 /* Make sure the ARM symbols don't alias the thumb ones */
4777 emit_zero_bytes (acfg, 16);
4780 * Emit a separate set of PLT entries using thumb2 which is called by LLVM generated
4783 for (i = 0; i < acfg->plt_offset; ++i) {
4784 char *debug_sym = NULL;
4785 MonoPltEntry *plt_entry = NULL;
4791 plt_entry = g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
4794 if (ji && is_direct_callable (acfg, NULL, ji) && !acfg->use_bin_writer)
4797 /* Skip plt entries not actually called by LLVM code */
4798 if (!plt_entry->llvm_used)
4801 if (acfg->aot_opts.write_symbols) {
4802 if (plt_entry->debug_sym)
4803 debug_sym = g_strdup_printf ("%s_thumb", plt_entry->debug_sym);
4807 #if defined(__APPLE__)
4808 fprintf (acfg->fp, " .thumb_func %s\n", debug_sym);
4809 fprintf (acfg->fp, " .no_dead_strip %s\n", debug_sym);
4811 emit_local_symbol (acfg, debug_sym, NULL, TRUE);
4812 emit_label (acfg, debug_sym);
4814 fprintf (acfg->fp, "\n.thumb_func\n");
4816 emit_label (acfg, plt_entry->llvm_symbol);
4818 arch_emit_llvm_plt_entry (acfg, i);
4821 emit_symbol_size (acfg, debug_sym, ".");
4827 emit_symbol_size (acfg, acfg->plt_symbol, ".");
4829 sprintf (symbol, "plt_end");
4830 emit_label (acfg, symbol);
4833 static G_GNUC_UNUSED void
4834 emit_trampoline (MonoAotCompile *acfg, int got_offset, MonoTrampInfo *info)
4836 char start_symbol [256];
4838 guint32 buf_size, info_offset;
4839 MonoJumpInfo *patch_info;
4850 code_size = info->code_size;
4852 unwind_ops = info->unwind_ops;
4854 #ifdef __native_client_codegen__
4855 mono_nacl_fix_patches (code, ji);
4860 sprintf (start_symbol, "%s", name);
4862 emit_section_change (acfg, ".text", 0);
4863 emit_global (acfg, start_symbol, TRUE);
4864 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
4865 emit_label (acfg, start_symbol);
4867 sprintf (symbol, "%snamed_%s", acfg->temp_prefix, name);
4868 emit_label (acfg, symbol);
4871 * The code should access everything through the GOT, so we pass
4874 emit_and_reloc_code (acfg, NULL, code, code_size, ji, TRUE);
4876 emit_symbol_size (acfg, start_symbol, ".");
4880 /* Sort relocations */
4881 patches = g_ptr_array_new ();
4882 for (patch_info = ji; patch_info; patch_info = patch_info->next)
4883 if (patch_info->type != MONO_PATCH_INFO_NONE)
4884 g_ptr_array_add (patches, patch_info);
4885 g_ptr_array_sort (patches, compare_patches);
4887 buf_size = patches->len * 128 + 128;
4888 buf = g_malloc (buf_size);
4891 encode_patch_list (acfg, patches, patches->len, got_offset, p, &p);
4892 g_assert (p - buf < buf_size);
4894 sprintf (symbol, "%s_p", name);
4896 info_offset = add_to_blob (acfg, buf, p - buf);
4898 emit_section_change (acfg, RODATA_SECT, 0);
4899 emit_global (acfg, symbol, FALSE);
4900 emit_label (acfg, symbol);
4902 emit_int32 (acfg, info_offset);
4904 /* Emit debug info */
4908 sprintf (symbol, "%s", name);
4909 sprintf (symbol2, "%snamed_%s", acfg->temp_prefix, name);
4912 mono_dwarf_writer_emit_trampoline (acfg->dwarf, symbol, symbol2, NULL, NULL, code_size, unwind_ops);
4917 emit_trampolines (MonoAotCompile *acfg)
4920 char end_symbol [256];
4921 int i, tramp_got_offset;
4922 MonoAotTrampoline ntype;
4923 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
4927 if (!acfg->aot_opts.full_aot)
4930 g_assert (acfg->image->assembly);
4932 /* Currently, we emit most trampolines into the mscorlib AOT image. */
4933 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
4934 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
4935 MonoTrampInfo *info;
4938 * Emit the generic trampolines.
4940 * We could save some code by treating the generic trampolines as a wrapper
4941 * method, but that approach has its own complexities, so we choose the simpler
4944 for (tramp_type = 0; tramp_type < MONO_TRAMPOLINE_NUM; ++tramp_type) {
4945 mono_arch_create_generic_trampoline (tramp_type, &info, TRUE);
4946 emit_trampoline (acfg, acfg->got_offset, info);
4949 mono_arch_get_nullified_class_init_trampoline (&info);
4950 emit_trampoline (acfg, acfg->got_offset, info);
4951 #if defined(MONO_ARCH_MONITOR_OBJECT_REG)
4952 mono_arch_create_monitor_enter_trampoline (&info, TRUE);
4953 emit_trampoline (acfg, acfg->got_offset, info);
4954 mono_arch_create_monitor_exit_trampoline (&info, TRUE);
4955 emit_trampoline (acfg, acfg->got_offset, info);
4958 mono_arch_create_generic_class_init_trampoline (&info, TRUE);
4959 emit_trampoline (acfg, acfg->got_offset, info);
4961 /* Emit the exception related code pieces */
4962 mono_arch_get_restore_context (&info, TRUE);
4963 emit_trampoline (acfg, acfg->got_offset, info);
4964 mono_arch_get_call_filter (&info, TRUE);
4965 emit_trampoline (acfg, acfg->got_offset, info);
4966 mono_arch_get_throw_exception (&info, TRUE);
4967 emit_trampoline (acfg, acfg->got_offset, info);
4968 mono_arch_get_rethrow_exception (&info, TRUE);
4969 emit_trampoline (acfg, acfg->got_offset, info);
4970 mono_arch_get_throw_corlib_exception (&info, TRUE);
4971 emit_trampoline (acfg, acfg->got_offset, info);
4973 #if defined(MONO_ARCH_HAVE_GET_TRAMPOLINES)
4975 GSList *l = mono_arch_get_trampolines (TRUE);
4978 MonoTrampInfo *info = l->data;
4980 emit_trampoline (acfg, acfg->got_offset, info);
4986 for (i = 0; i < 128; ++i) {
4989 offset = MONO_RGCTX_SLOT_MAKE_RGCTX (i);
4990 mono_arch_create_rgctx_lazy_fetch_trampoline (offset, &info, TRUE);
4991 emit_trampoline (acfg, acfg->got_offset, info);
4993 offset = MONO_RGCTX_SLOT_MAKE_MRGCTX (i);
4994 mono_arch_create_rgctx_lazy_fetch_trampoline (offset, &info, TRUE);
4995 emit_trampoline (acfg, acfg->got_offset, info);
5001 /* delegate_invoke_impl trampolines */
5002 l = mono_arch_get_delegate_invoke_impls ();
5004 MonoTrampInfo *info = l->data;
5006 emit_trampoline (acfg, acfg->got_offset, info);
5011 #endif /* #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES */
5013 /* Emit trampolines which are numerous */
5016 * These include the following:
5017 * - specific trampolines
5018 * - static rgctx invoke trampolines
5020 * These trampolines have the same code, they are parameterized by GOT
5022 * They are defined in this file, in the arch_... routines instead of
5023 * in tramp-<ARCH>.c, since it is easier to do it this way.
5027 * When running in aot-only mode, we can't create specific trampolines at
5028 * runtime, so we create a few, and save them in the AOT file.
5029 * Normal trampolines embed their argument as a literal inside the
5030 * trampoline code, we can't do that here, so instead we embed an offset
5031 * which needs to be added to the trampoline address to get the address of
5032 * the GOT slot which contains the argument value.
5033 * The generated trampolines jump to the generic trampolines using another
5034 * GOT slot, which will be setup by the AOT loader to point to the
5035 * generic trampoline code of the given type.
5039 * FIXME: Maybe we should use more specific trampolines (i.e. one class init for
5043 emit_section_change (acfg, ".text", 0);
5045 tramp_got_offset = acfg->got_offset;
5047 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype) {
5049 case MONO_AOT_TRAMP_SPECIFIC:
5050 sprintf (symbol, "specific_trampolines");
5052 case MONO_AOT_TRAMP_STATIC_RGCTX:
5053 sprintf (symbol, "static_rgctx_trampolines");
5055 case MONO_AOT_TRAMP_IMT_THUNK:
5056 sprintf (symbol, "imt_thunks");
5059 g_assert_not_reached ();
5062 sprintf (end_symbol, "%s_e", symbol);
5064 if (acfg->aot_opts.write_symbols)
5065 emit_local_symbol (acfg, symbol, end_symbol, TRUE);
5067 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
5068 emit_label (acfg, symbol);
5070 acfg->trampoline_got_offset_base [ntype] = tramp_got_offset;
5072 for (i = 0; i < acfg->num_trampolines [ntype]; ++i) {
5076 case MONO_AOT_TRAMP_SPECIFIC:
5077 arch_emit_specific_trampoline (acfg, tramp_got_offset, &tramp_size);
5078 tramp_got_offset += 2;
5080 case MONO_AOT_TRAMP_STATIC_RGCTX:
5081 arch_emit_static_rgctx_trampoline (acfg, tramp_got_offset, &tramp_size);
5082 tramp_got_offset += 2;
5084 case MONO_AOT_TRAMP_IMT_THUNK:
5085 arch_emit_imt_thunk (acfg, tramp_got_offset, &tramp_size);
5086 tramp_got_offset += 1;
5089 g_assert_not_reached ();
5091 #ifdef __native_client_codegen__
5092 /* align to avoid 32-byte boundary crossings */
5093 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
5096 if (!acfg->trampoline_size [ntype]) {
5097 g_assert (tramp_size);
5098 acfg->trampoline_size [ntype] = tramp_size;
5102 emit_label (acfg, end_symbol);
5105 /* Reserve some entries at the end of the GOT for our use */
5106 acfg->num_trampoline_got_entries = tramp_got_offset - acfg->got_offset;
5109 acfg->got_offset += acfg->num_trampoline_got_entries;
5113 str_begins_with (const char *str1, const char *str2)
5115 int len = strlen (str2);
5116 return strncmp (str1, str2, len) == 0;
5120 mono_aot_readonly_field_override (MonoClassField *field)
5123 for (rdv = readonly_values; rdv; rdv = rdv->next) {
5124 char *p = rdv->name;
5126 len = strlen (field->parent->name_space);
5127 if (strncmp (p, field->parent->name_space, len))
5132 len = strlen (field->parent->name);
5133 if (strncmp (p, field->parent->name, len))
5138 if (strcmp (p, field->name))
5140 switch (rdv->type) {
5142 return &rdv->value.i1;
5144 return &rdv->value.i2;
5146 return &rdv->value.i4;
5155 add_readonly_value (MonoAotOptions *opts, const char *val)
5160 /* the format of val is:
5161 * namespace.typename.fieldname=type/value
5162 * type can be i1 for uint8/int8/boolean, i2 for uint16/int16/char, i4 for uint32/int32
5164 fval = strrchr (val, '/');
5166 fprintf (stderr, "AOT : invalid format for readonly field '%s', missing /.\n", val);
5169 tval = strrchr (val, '=');
5171 fprintf (stderr, "AOT : invalid format for readonly field '%s', missing =.\n", val);
5174 rdv = g_new0 (ReadOnlyValue, 1);
5175 rdv->name = g_malloc0 (tval - val + 1);
5176 memcpy (rdv->name, val, tval - val);
5179 if (strncmp (tval, "i1", 2) == 0) {
5180 rdv->value.i1 = atoi (fval);
5181 rdv->type = MONO_TYPE_I1;
5182 } else if (strncmp (tval, "i2", 2) == 0) {
5183 rdv->value.i2 = atoi (fval);
5184 rdv->type = MONO_TYPE_I2;
5185 } else if (strncmp (tval, "i4", 2) == 0) {
5186 rdv->value.i4 = atoi (fval);
5187 rdv->type = MONO_TYPE_I4;
5189 fprintf (stderr, "AOT : unsupported type for readonly field '%s'.\n", tval);
5192 rdv->next = readonly_values;
5193 readonly_values = rdv;
5197 mono_aot_parse_options (const char *aot_options, MonoAotOptions *opts)
5199 gchar **args, **ptr;
5201 args = g_strsplit (aot_options ? aot_options : "", ",", -1);
5202 for (ptr = args; ptr && *ptr; ptr ++) {
5203 const char *arg = *ptr;
5205 if (str_begins_with (arg, "outfile=")) {
5206 opts->outfile = g_strdup (arg + strlen ("outfile="));
5207 } else if (str_begins_with (arg, "save-temps")) {
5208 opts->save_temps = TRUE;
5209 } else if (str_begins_with (arg, "keep-temps")) {
5210 opts->save_temps = TRUE;
5211 } else if (str_begins_with (arg, "write-symbols")) {
5212 opts->write_symbols = TRUE;
5213 } else if (str_begins_with (arg, "no-write-symbols")) {
5214 opts->write_symbols = FALSE;
5215 } else if (str_begins_with (arg, "metadata-only")) {
5216 opts->metadata_only = TRUE;
5217 } else if (str_begins_with (arg, "bind-to-runtime-version")) {
5218 opts->bind_to_runtime_version = TRUE;
5219 } else if (str_begins_with (arg, "full")) {
5220 opts->full_aot = TRUE;
5221 } else if (str_begins_with (arg, "threads=")) {
5222 opts->nthreads = atoi (arg + strlen ("threads="));
5223 } else if (str_begins_with (arg, "static")) {
5224 opts->static_link = TRUE;
5225 opts->no_dlsym = TRUE;
5226 } else if (str_begins_with (arg, "asmonly")) {
5227 opts->asm_only = TRUE;
5228 } else if (str_begins_with (arg, "asmwriter")) {
5229 opts->asm_writer = TRUE;
5230 } else if (str_begins_with (arg, "nodebug")) {
5231 opts->nodebug = TRUE;
5232 } else if (str_begins_with (arg, "ntrampolines=")) {
5233 opts->ntrampolines = atoi (arg + strlen ("ntrampolines="));
5234 } else if (str_begins_with (arg, "nrgctx-trampolines=")) {
5235 opts->nrgctx_trampolines = atoi (arg + strlen ("nrgctx-trampolines="));
5236 } else if (str_begins_with (arg, "nimt-trampolines=")) {
5237 opts->nimt_trampolines = atoi (arg + strlen ("nimt-trampolines="));
5238 } else if (str_begins_with (arg, "autoreg")) {
5239 opts->autoreg = TRUE;
5240 } else if (str_begins_with (arg, "tool-prefix=")) {
5241 opts->tool_prefix = g_strdup (arg + strlen ("tool-prefix="));
5242 } else if (str_begins_with (arg, "soft-debug")) {
5243 opts->soft_debug = TRUE;
5244 } else if (str_begins_with (arg, "direct-pinvoke")) {
5245 opts->direct_pinvoke = TRUE;
5246 } else if (str_begins_with (arg, "direct-icalls")) {
5247 opts->direct_icalls = TRUE;
5248 } else if (str_begins_with (arg, "print-skipped")) {
5249 opts->print_skipped_methods = TRUE;
5250 } else if (str_begins_with (arg, "stats")) {
5252 } else if (str_begins_with (arg, "log-generics")) {
5253 opts->log_generics = TRUE;
5254 } else if (str_begins_with (arg, "mtriple=")) {
5255 opts->mtriple = g_strdup (arg + strlen ("mtriple="));
5256 } else if (str_begins_with (arg, "llvm-path=")) {
5257 opts->llvm_path = g_strdup (arg + strlen ("llvm-path="));
5258 } else if (str_begins_with (arg, "readonly-value=")) {
5259 add_readonly_value (opts, arg + strlen ("readonly-value="));
5260 } else if (str_begins_with (arg, "info")) {
5261 printf ("AOT target setup: %s.\n", AOT_TARGET_STR);
5263 } else if (str_begins_with (arg, "help") || str_begins_with (arg, "?")) {
5264 printf ("Supported options for --aot:\n");
5265 printf (" outfile=\n");
5266 printf (" save-temps\n");
5267 printf (" keep-temps\n");
5268 printf (" write-symbols\n");
5269 printf (" metadata-only\n");
5270 printf (" bind-to-runtime-version\n");
5272 printf (" threads=\n");
5273 printf (" static\n");
5274 printf (" asmonly\n");
5275 printf (" asmwriter\n");
5276 printf (" nodebug\n");
5277 printf (" ntrampolines=\n");
5278 printf (" nrgctx-trampolines=\n");
5279 printf (" nimt-trampolines=\n");
5280 printf (" autoreg\n");
5281 printf (" tool-prefix=\n");
5282 printf (" readonly-value=\n");
5283 printf (" soft-debug\n");
5284 printf (" print-skipped\n");
5285 printf (" stats\n");
5287 printf (" help/?\n");
5290 fprintf (stderr, "AOT : Unknown argument '%s'.\n", arg);
5299 add_token_info_hash (gpointer key, gpointer value, gpointer user_data)
5301 MonoMethod *method = (MonoMethod*)key;
5302 MonoJumpInfoToken *ji = (MonoJumpInfoToken*)value;
5303 MonoJumpInfoToken *new_ji = g_new0 (MonoJumpInfoToken, 1);
5304 MonoAotCompile *acfg = user_data;
5306 new_ji->image = ji->image;
5307 new_ji->token = ji->token;
5308 g_hash_table_insert (acfg->token_info_hash, method, new_ji);
5312 can_encode_class (MonoAotCompile *acfg, MonoClass *klass)
5314 if (klass->type_token)
5316 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR) || (klass->byval_arg.type == MONO_TYPE_PTR))
5319 return can_encode_class (acfg, klass->element_class);
5324 can_encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
5326 switch (patch_info->type) {
5327 case MONO_PATCH_INFO_METHOD:
5328 case MONO_PATCH_INFO_METHODCONST: {
5329 MonoMethod *method = patch_info->data.method;
5331 if (method->wrapper_type) {
5332 switch (method->wrapper_type) {
5333 case MONO_WRAPPER_NONE:
5334 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
5335 case MONO_WRAPPER_XDOMAIN_INVOKE:
5336 case MONO_WRAPPER_STFLD:
5337 case MONO_WRAPPER_LDFLD:
5338 case MONO_WRAPPER_LDFLDA:
5339 case MONO_WRAPPER_LDFLD_REMOTE:
5340 case MONO_WRAPPER_STFLD_REMOTE:
5341 case MONO_WRAPPER_STELEMREF:
5342 case MONO_WRAPPER_ISINST:
5343 case MONO_WRAPPER_PROXY_ISINST:
5344 case MONO_WRAPPER_ALLOC:
5345 case MONO_WRAPPER_REMOTING_INVOKE:
5346 case MONO_WRAPPER_UNKNOWN:
5347 case MONO_WRAPPER_WRITE_BARRIER:
5349 case MONO_WRAPPER_MANAGED_TO_MANAGED:
5350 case MONO_WRAPPER_CASTCLASS: {
5351 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
5360 //printf ("Skip (wrapper call): %d -> %s\n", patch_info->type, mono_method_full_name (patch_info->data.method, TRUE));
5364 if (!method->token) {
5365 /* The method is part of a constructed type like Int[,].Set (). */
5366 if (!g_hash_table_lookup (acfg->token_info_hash, method)) {
5367 if (method->klass->rank)
5375 case MONO_PATCH_INFO_VTABLE:
5376 case MONO_PATCH_INFO_CLASS_INIT:
5377 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
5378 case MONO_PATCH_INFO_CLASS:
5379 case MONO_PATCH_INFO_IID:
5380 case MONO_PATCH_INFO_ADJUSTED_IID:
5381 if (!can_encode_class (acfg, patch_info->data.klass)) {
5382 //printf ("Skip: %s\n", mono_type_full_name (&patch_info->data.klass->byval_arg));
5386 case MONO_PATCH_INFO_RGCTX_FETCH: {
5387 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
5389 if (!can_encode_patch (acfg, entry->data))
5403 * AOT compile a given method.
5404 * This function might be called by multiple threads, so it must be thread-safe.
5407 compile_method (MonoAotCompile *acfg, MonoMethod *method)
5410 MonoJumpInfo *patch_info;
5413 MonoMethod *wrapped;
5415 if (acfg->aot_opts.metadata_only)
5418 mono_acfg_lock (acfg);
5419 index = get_method_index (acfg, method);
5420 mono_acfg_unlock (acfg);
5422 /* fixme: maybe we can also precompile wrapper methods */
5423 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
5424 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
5425 (method->flags & METHOD_ATTRIBUTE_ABSTRACT)) {
5426 //printf ("Skip (impossible): %s\n", mono_method_full_name (method, TRUE));
5430 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
5433 wrapped = mono_marshal_method_from_wrapper (method);
5434 if (wrapped && (wrapped->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && wrapped->is_generic)
5435 // FIXME: The wrapper should be generic too, but it is not
5438 if (method->wrapper_type == MONO_WRAPPER_COMINTEROP)
5441 InterlockedIncrement (&acfg->stats.mcount);
5444 if (method->is_generic || method->klass->generic_container) {
5445 InterlockedIncrement (&acfg->stats.genericcount);
5450 //acfg->aot_opts.print_skipped_methods = TRUE;
5453 * Since these methods are the only ones which are compiled with
5454 * AOT support, and they are not used by runtime startup/shutdown code,
5455 * the runtime will not see AOT methods during AOT compilation,so it
5456 * does not need to support them by creating a fake GOT etc.
5458 cfg = mini_method_compile (method, acfg->opts, mono_get_root_domain (), FALSE, TRUE, 0);
5459 if (cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
5460 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
5461 InterlockedIncrement (&acfg->stats.genericcount);
5464 if (cfg->exception_type != MONO_EXCEPTION_NONE) {
5465 if (acfg->aot_opts.print_skipped_methods)
5466 printf ("Skip (JIT failure): %s\n", mono_method_full_name (method, TRUE));
5467 /* Let the exception happen at runtime */
5471 if (cfg->disable_aot) {
5472 if (acfg->aot_opts.print_skipped_methods)
5473 printf ("Skip (disabled): %s\n", mono_method_full_name (method, TRUE));
5474 InterlockedIncrement (&acfg->stats.ocount);
5475 mono_destroy_compile (cfg);
5479 /* Nullify patches which need no aot processing */
5480 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5481 switch (patch_info->type) {
5482 case MONO_PATCH_INFO_LABEL:
5483 case MONO_PATCH_INFO_BB:
5484 patch_info->type = MONO_PATCH_INFO_NONE;
5491 /* Collect method->token associations from the cfg */
5492 mono_acfg_lock (acfg);
5493 g_hash_table_foreach (cfg->token_info_hash, add_token_info_hash, acfg);
5494 mono_acfg_unlock (acfg);
5497 * Check for absolute addresses.
5500 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5501 switch (patch_info->type) {
5502 case MONO_PATCH_INFO_ABS:
5503 /* unable to handle this */
5512 if (acfg->aot_opts.print_skipped_methods)
5513 printf ("Skip (abs call): %s\n", mono_method_full_name (method, TRUE));
5514 InterlockedIncrement (&acfg->stats.abscount);
5515 mono_destroy_compile (cfg);
5519 /* Lock for the rest of the code */
5520 mono_acfg_lock (acfg);
5523 * Check for methods/klasses we can't encode.
5526 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5527 if (!can_encode_patch (acfg, patch_info))
5532 if (acfg->aot_opts.print_skipped_methods)
5533 printf ("Skip (patches): %s\n", mono_method_full_name (method, TRUE));
5534 acfg->stats.ocount++;
5535 mono_destroy_compile (cfg);
5536 mono_acfg_unlock (acfg);
5540 /* Adds generic instances referenced by this method */
5542 * The depth is used to avoid infinite loops when generic virtual recursion is
5545 depth = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_depth, method));
5547 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5548 switch (patch_info->type) {
5549 case MONO_PATCH_INFO_METHOD: {
5550 MonoMethod *m = patch_info->data.method;
5551 if (m->is_inflated) {
5552 if (!(mono_class_generic_sharing_enabled (m->klass) &&
5553 mono_method_is_generic_sharable_impl (m, FALSE)) &&
5554 !method_has_type_vars (m)) {
5555 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
5556 if (acfg->aot_opts.full_aot)
5557 add_extra_method_with_depth (acfg, mono_marshal_get_native_wrapper (m, TRUE, TRUE), depth + 1);
5559 add_extra_method_with_depth (acfg, m, depth + 1);
5560 add_types_from_method_header (acfg, m);
5563 add_generic_class_with_depth (acfg, m->klass, depth + 5, "method");
5565 if (m->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && !strcmp (m->name, "ElementAddr"))
5566 add_extra_method_with_depth (acfg, m, depth + 1);
5569 case MONO_PATCH_INFO_VTABLE: {
5570 MonoClass *klass = patch_info->data.klass;
5572 if (klass->generic_class && !mono_generic_context_is_sharable (&klass->generic_class->context, FALSE))
5573 add_generic_class_with_depth (acfg, klass, depth + 5, "vtable");
5576 case MONO_PATCH_INFO_SFLDA: {
5577 MonoClass *klass = patch_info->data.field->parent;
5579 /* The .cctor needs to run at runtime. */
5580 if (klass->generic_class && !mono_generic_context_is_sharable (&klass->generic_class->context, FALSE) && mono_class_get_cctor (klass))
5581 add_extra_method_with_depth (acfg, mono_class_get_cctor (klass), depth + 1);
5590 /* Determine whenever the method has GOT slots */
5591 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5592 switch (patch_info->type) {
5593 case MONO_PATCH_INFO_GOT_OFFSET:
5594 case MONO_PATCH_INFO_NONE:
5595 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
5597 case MONO_PATCH_INFO_IMAGE:
5598 /* The assembly is stored in GOT slot 0 */
5599 if (patch_info->data.image != acfg->image)
5600 cfg->has_got_slots = TRUE;
5603 if (!is_plt_patch (patch_info))
5604 cfg->has_got_slots = TRUE;
5609 if (!cfg->has_got_slots)
5610 InterlockedIncrement (&acfg->stats.methods_without_got_slots);
5613 * FIXME: Instead of this mess, allocate the patches from the aot mempool.
5615 /* Make a copy of the patch info which is in the mempool */
5617 MonoJumpInfo *patches = NULL, *patches_end = NULL;
5619 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5620 MonoJumpInfo *new_patch_info = mono_patch_info_dup_mp (acfg->mempool, patch_info);
5623 patches = new_patch_info;
5625 patches_end->next = new_patch_info;
5626 patches_end = new_patch_info;
5628 cfg->patch_info = patches;
5630 /* Make a copy of the unwind info */
5632 GSList *l, *unwind_ops;
5636 for (l = cfg->unwind_ops; l; l = l->next) {
5637 op = mono_mempool_alloc (acfg->mempool, sizeof (MonoUnwindOp));
5638 memcpy (op, l->data, sizeof (MonoUnwindOp));
5639 unwind_ops = g_slist_prepend_mempool (acfg->mempool, unwind_ops, op);
5641 cfg->unwind_ops = g_slist_reverse (unwind_ops);
5643 /* Make a copy of the argument/local info */
5645 MonoInst **args, **locals;
5646 MonoMethodSignature *sig;
5647 MonoMethodHeader *header;
5650 sig = mono_method_signature (method);
5651 args = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * (sig->param_count + sig->hasthis));
5652 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
5653 args [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
5654 memcpy (args [i], cfg->args [i], sizeof (MonoInst));
5658 header = mono_method_get_header (method);
5659 locals = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * header->num_locals);
5660 for (i = 0; i < header->num_locals; ++i) {
5661 locals [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
5662 memcpy (locals [i], cfg->locals [i], sizeof (MonoInst));
5664 cfg->locals = locals;
5667 /* Free some fields used by cfg to conserve memory */
5668 mono_mempool_destroy (cfg->mempool);
5669 cfg->mempool = NULL;
5670 g_free (cfg->varinfo);
5671 cfg->varinfo = NULL;
5675 mono_regstate_free (cfg->rs);
5679 //printf ("Compile: %s\n", mono_method_full_name (method, TRUE));
5681 while (index >= acfg->cfgs_size) {
5682 MonoCompile **new_cfgs;
5685 new_size = acfg->cfgs_size * 2;
5686 new_cfgs = g_new0 (MonoCompile*, new_size);
5687 memcpy (new_cfgs, acfg->cfgs, sizeof (MonoCompile*) * acfg->cfgs_size);
5688 g_free (acfg->cfgs);
5689 acfg->cfgs = new_cfgs;
5690 acfg->cfgs_size = new_size;
5692 acfg->cfgs [index] = cfg;
5694 g_hash_table_insert (acfg->method_to_cfg, cfg->orig_method, cfg);
5697 if (cfg->orig_method->wrapper_type)
5698 g_ptr_array_add (acfg->extra_methods, cfg->orig_method);
5701 mono_acfg_unlock (acfg);
5703 InterlockedIncrement (&acfg->stats.ccount);
5707 compile_thread_main (gpointer *user_data)
5709 MonoDomain *domain = user_data [0];
5710 MonoAotCompile *acfg = user_data [1];
5711 GPtrArray *methods = user_data [2];
5714 mono_thread_attach (domain);
5716 for (i = 0; i < methods->len; ++i)
5717 compile_method (acfg, g_ptr_array_index (methods, i));
5721 load_profile_files (MonoAotCompile *acfg)
5725 int file_index, res, method_index, i;
5728 GList *unordered, *l;
5733 tmp = g_strdup_printf ("%s/.mono/aot-profile-data/%s-%d", g_get_home_dir (), acfg->image->assembly_name, file_index);
5735 if (!g_file_test (tmp, G_FILE_TEST_IS_REGULAR)) {
5740 infile = fopen (tmp, "r");
5743 printf ("Using profile data file '%s'\n", tmp);
5748 res = fscanf (infile, "%32s\n", ver);
5749 if ((res != 1) || strcmp (ver, "#VER:2") != 0) {
5750 printf ("Profile file has wrong version or invalid.\n");
5757 MonoMethodDesc *desc;
5760 if (fgets (name, 1023, infile) == NULL)
5763 /* Kill the newline */
5764 if (strlen (name) > 0)
5765 name [strlen (name) - 1] = '\0';
5767 desc = mono_method_desc_new (name, TRUE);
5769 method = mono_method_desc_search_in_image (desc, acfg->image);
5771 if (method && mono_method_get_token (method)) {
5772 token = mono_method_get_token (method);
5773 method_index = mono_metadata_token_index (token) - 1;
5776 for (i = 0; i < acfg->method_order->len; ++i) {
5777 if (g_ptr_array_index (acfg->method_order, i) == GUINT_TO_POINTER (method_index)) {
5783 g_ptr_array_add (acfg->method_order, GUINT_TO_POINTER (method_index));
5785 //printf ("No method found matching '%s'.\n", name);
5791 /* Add missing methods */
5793 for (method_index = 0; method_index < acfg->image->tables [MONO_TABLE_METHOD].rows; ++method_index) {
5795 for (i = 0; i < acfg->method_order->len; ++i) {
5796 if (g_ptr_array_index (acfg->method_order, i) == GUINT_TO_POINTER (method_index)) {
5802 unordered = g_list_prepend (unordered, GUINT_TO_POINTER (method_index));
5804 unordered = g_list_reverse (unordered);
5805 for (l = unordered; l; l = l->next)
5806 g_ptr_array_add (acfg->method_order, l->data);
5809 /* Used by the LLVM backend */
5811 mono_aot_get_got_offset (MonoJumpInfo *ji)
5813 return get_got_offset (llvm_acfg, ji);
5817 mono_aot_get_method_name (MonoCompile *cfg)
5819 if (llvm_acfg->aot_opts.static_link)
5820 /* Include the assembly name too to avoid duplicate symbol errors */
5821 return g_strdup_printf ("%s_%s", llvm_acfg->assembly_name_sym, get_debug_sym (cfg->orig_method, "", llvm_acfg->method_label_hash));
5823 return get_debug_sym (cfg->orig_method, "", llvm_acfg->method_label_hash);
5827 mono_aot_get_plt_symbol (MonoJumpInfoType type, gconstpointer data)
5829 MonoJumpInfo *ji = mono_mempool_alloc (llvm_acfg->mempool, sizeof (MonoJumpInfo));
5830 MonoPltEntry *plt_entry;
5833 ji->data.target = data;
5835 if (!can_encode_patch (llvm_acfg, ji))
5838 plt_entry = get_plt_entry (llvm_acfg, ji);
5839 plt_entry->llvm_used = TRUE;
5841 #if defined(__APPLE__)
5842 return g_strdup_printf (plt_entry->llvm_symbol + strlen (llvm_acfg->llvm_label_prefix));
5844 return g_strdup_printf (plt_entry->llvm_symbol);
5849 mono_aot_patch_info_dup (MonoJumpInfo* ji)
5853 mono_acfg_lock (llvm_acfg);
5854 res = mono_patch_info_dup_mp (llvm_acfg->mempool, ji);
5855 mono_acfg_unlock (llvm_acfg);
5865 * Emit the LLVM code into an LLVM bytecode file, and compile it using the LLVM
5869 emit_llvm_file (MonoAotCompile *acfg)
5871 char *command, *opts;
5873 MonoJumpInfo *patch_info;
5876 * When using LLVM, we let llvm emit the got since the LLVM IL needs to refer
5880 /* Compute the final size of the got */
5881 for (i = 0; i < acfg->nmethods; ++i) {
5882 if (acfg->cfgs [i]) {
5883 for (patch_info = acfg->cfgs [i]->patch_info; patch_info; patch_info = patch_info->next) {
5884 if (patch_info->type != MONO_PATCH_INFO_NONE) {
5885 if (!is_plt_patch (patch_info))
5886 get_got_offset (acfg, patch_info);
5888 get_plt_entry (acfg, patch_info);
5894 acfg->final_got_size = acfg->got_offset + acfg->plt_offset;
5896 if (acfg->aot_opts.full_aot) {
5900 * Need to add the got entries used by the trampolines.
5901 * This is only a conservative approximation.
5903 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
5904 /* For the generic + rgctx trampolines */
5905 acfg->final_got_size += 200;
5906 /* For the specific trampolines */
5907 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype)
5908 acfg->final_got_size += acfg->num_trampolines [ntype] * 2;
5913 mono_llvm_emit_aot_module ("temp.bc", acfg->final_got_size);
5916 * FIXME: Experiment with adding optimizations, the -std-compile-opts set takes
5917 * a lot of time, and doesn't seem to save much space.
5918 * The following optimizations cannot be enabled:
5920 * - 'jump-threading' changes our blockaddress references to int constants.
5921 * - 'basiccg' fails because it contains:
5922 * if (CS && !isa<IntrinsicInst>(II)) {
5923 * and isa<IntrinsicInst> is false for invokes to intrinsics (iltests.exe).
5924 * - 'prune-eh' and 'functionattrs' depend on 'basiccg'.
5925 * The opt list below was produced by taking the output of:
5926 * llvm-as < /dev/null | opt -O2 -disable-output -debug-pass=Arguments
5927 * then removing tailcallelim + the global opts, and adding a second gvn.
5929 opts = g_strdup ("-instcombine -simplifycfg");
5930 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");
5932 command = g_strdup_printf ("%sopt -f %s -o temp.opt.bc temp.bc", acfg->aot_opts.llvm_path, opts);
5933 printf ("Executing opt: %s\n", command);
5934 if (system (command) != 0) {
5940 if (!acfg->llc_args)
5941 acfg->llc_args = g_string_new ("");
5943 /* Verbose asm slows down llc greatly */
5944 g_string_append (acfg->llc_args, " -asm-verbose=false");
5946 if (acfg->aot_opts.mtriple)
5947 g_string_append_printf (acfg->llc_args, " -mtriple=%s", acfg->aot_opts.mtriple);
5949 if (llvm_acfg->aot_opts.static_link)
5950 g_string_append_printf (acfg->llc_args, " -relocation-model=static");
5952 g_string_append_printf (acfg->llc_args, " -relocation-model=pic");
5953 unlink (acfg->tmpfname);
5955 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);
5957 printf ("Executing llc: %s\n", command);
5959 if (system (command) != 0) {
5966 emit_code (MonoAotCompile *acfg)
5968 int oindex, i, prev_index;
5970 char end_symbol [256];
5972 #if defined(TARGET_POWERPC64)
5973 sprintf (symbol, ".Lgot_addr");
5974 emit_section_change (acfg, ".text", 0);
5975 emit_alignment (acfg, 8);
5976 emit_label (acfg, symbol);
5977 emit_pointer (acfg, acfg->got_symbol);
5981 * This global symbol is used to compute the address of each method using the
5982 * code_offsets array. It is also used to compute the memory ranges occupied by
5983 * AOT code, so it must be equal to the address of the first emitted method.
5985 sprintf (symbol, "methods");
5986 emit_section_change (acfg, ".text", 0);
5987 emit_alignment (acfg, 8);
5989 for (i = 0; i < acfg->nmethods; ++i) {
5990 if (acfg->cfgs [i] && acfg->cfgs [i]->compile_llvm) {
5991 fprintf (acfg->fp, "\n.set methods, %s\n", acfg->cfgs [i]->asm_symbol);
5995 if (i == acfg->nmethods)
5996 /* No LLVM compiled methods */
5997 emit_label (acfg, symbol);
5999 emit_label (acfg, symbol);
6003 * Emit some padding so the local symbol for the first method doesn't have the
6004 * same address as 'methods'.
6006 #if defined(__default_codegen__)
6007 emit_zero_bytes (acfg, 16);
6008 #elif defined(__native_client_codegen__)
6010 const int kPaddingSize = 16;
6011 guint8 pad_buffer[kPaddingSize];
6012 mono_arch_nacl_pad (pad_buffer, kPaddingSize);
6013 emit_bytes (acfg, pad_buffer, kPaddingSize);
6017 for (oindex = 0; oindex < acfg->method_order->len; ++oindex) {
6021 i = GPOINTER_TO_UINT (g_ptr_array_index (acfg->method_order, oindex));
6023 cfg = acfg->cfgs [i];
6028 method = cfg->orig_method;
6030 /* Emit unbox trampoline */
6031 if (acfg->aot_opts.full_aot && cfg->orig_method->klass->valuetype && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
6032 sprintf (symbol, "ut_%d", get_method_index (acfg, method));
6034 emit_section_change (acfg, ".text", 0);
6035 #ifdef __native_client_codegen__
6036 emit_alignment (acfg, AOT_FUNC_ALIGNMENT);
6039 if (acfg->thumb_mixed && cfg->compile_llvm)
6040 fprintf (acfg->fp, "\n.thumb_func\n");
6042 emit_label (acfg, symbol);
6044 arch_emit_unbox_trampoline (acfg, cfg, cfg->orig_method, cfg->asm_symbol);
6047 if (cfg->compile_llvm)
6048 acfg->stats.llvm_count ++;
6050 emit_method_code (acfg, cfg);
6053 sprintf (symbol, "methods_end");
6054 emit_section_change (acfg, ".text", 0);
6055 emit_alignment (acfg, 8);
6056 emit_label (acfg, symbol);
6059 * Add .no_dead_strip directives for all LLVM methods to prevent the OSX linker
6060 * from optimizing them away, since it doesn't see that code_offsets references them.
6061 * JITted methods don't need this since they are referenced using assembler local
6063 * FIXME: This is why write-symbols doesn't work on OSX ?
6065 if (acfg->llvm && acfg->need_no_dead_strip) {
6066 fprintf (acfg->fp, "\n");
6067 for (i = 0; i < acfg->nmethods; ++i) {
6068 if (acfg->cfgs [i] && acfg->cfgs [i]->compile_llvm)
6069 fprintf (acfg->fp, ".no_dead_strip %s\n", acfg->cfgs [i]->asm_symbol);
6073 sprintf (symbol, "code_offsets");
6074 emit_section_change (acfg, RODATA_SECT, 1);
6075 emit_alignment (acfg, 8);
6076 emit_label (acfg, symbol);
6078 acfg->stats.offsets_size += acfg->nmethods * 4;
6080 sprintf (end_symbol, "methods");
6081 for (i = 0; i < acfg->nmethods; ++i) {
6082 if (acfg->cfgs [i]) {
6083 emit_symbol_diff (acfg, acfg->cfgs [i]->asm_symbol, end_symbol, 0);
6085 emit_int32 (acfg, 0xffffffff);
6090 /* Emit a sorted table mapping methods to their unbox trampolines */
6091 sprintf (symbol, "unbox_trampolines");
6092 emit_section_change (acfg, RODATA_SECT, 1);
6093 emit_alignment (acfg, 8);
6094 emit_label (acfg, symbol);
6096 sprintf (end_symbol, "methods");
6098 for (i = 0; i < acfg->nmethods; ++i) {
6103 cfg = acfg->cfgs [i];
6107 method = cfg->orig_method;
6109 if (acfg->aot_opts.full_aot && cfg->orig_method->klass->valuetype && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
6110 index = get_method_index (acfg, method);
6111 sprintf (symbol, "ut_%d", index);
6113 emit_int32 (acfg, index);
6114 emit_symbol_diff (acfg, symbol, end_symbol, 0);
6115 /* Make sure the table is sorted by index */
6116 g_assert (index > prev_index);
6120 sprintf (symbol, "unbox_trampolines_end");
6121 emit_label (acfg, symbol);
6125 emit_info (MonoAotCompile *acfg)
6131 offsets = g_new0 (gint32, acfg->nmethods);
6133 for (oindex = 0; oindex < acfg->method_order->len; ++oindex) {
6134 i = GPOINTER_TO_UINT (g_ptr_array_index (acfg->method_order, oindex));
6136 if (acfg->cfgs [i]) {
6137 emit_method_info (acfg, acfg->cfgs [i]);
6138 offsets [i] = acfg->cfgs [i]->method_info_offset;
6144 sprintf (symbol, "method_info_offsets");
6145 emit_section_change (acfg, RODATA_SECT, 1);
6146 emit_alignment (acfg, 8);
6147 emit_label (acfg, symbol);
6149 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->nmethods, 10, offsets);
6154 #endif /* #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT) */
6156 #define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
6157 #define mix(a,b,c) { \
6158 a -= c; a ^= rot(c, 4); c += b; \
6159 b -= a; b ^= rot(a, 6); a += c; \
6160 c -= b; c ^= rot(b, 8); b += a; \
6161 a -= c; a ^= rot(c,16); c += b; \
6162 b -= a; b ^= rot(a,19); a += c; \
6163 c -= b; c ^= rot(b, 4); b += a; \
6165 #define final(a,b,c) { \
6166 c ^= b; c -= rot(b,14); \
6167 a ^= c; a -= rot(c,11); \
6168 b ^= a; b -= rot(a,25); \
6169 c ^= b; c -= rot(b,16); \
6170 a ^= c; a -= rot(c,4); \
6171 b ^= a; b -= rot(a,14); \
6172 c ^= b; c -= rot(b,24); \
6176 mono_aot_type_hash (MonoType *t1)
6178 guint hash = t1->type;
6180 hash |= t1->byref << 6; /* do not collide with t1->type values */
6182 case MONO_TYPE_VALUETYPE:
6183 case MONO_TYPE_CLASS:
6184 case MONO_TYPE_SZARRAY:
6185 /* check if the distribution is good enough */
6186 return ((hash << 5) - hash) ^ mono_metadata_str_hash (t1->data.klass->name);
6188 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
6189 case MONO_TYPE_ARRAY:
6190 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
6191 case MONO_TYPE_GENERICINST:
6192 return ((hash << 5) - hash) ^ 0;
6199 * mono_aot_method_hash:
6201 * Return a hash code for methods which only depends on metadata.
6204 mono_aot_method_hash (MonoMethod *method)
6206 MonoMethodSignature *sig;
6210 guint32 *hashes_start, *hashes;
6212 MonoGenericInst *ginst = NULL;
6214 /* Similar to the hash in mono_method_get_imt_slot () */
6216 sig = mono_method_signature (method);
6218 if (method->is_inflated)
6219 ginst = ((MonoMethodInflated*)method)->context.method_inst;
6221 hashes_count = sig->param_count + 5 + (ginst ? ginst->type_argc : 0);
6222 hashes_start = g_malloc0 (hashes_count * sizeof (guint32));
6223 hashes = hashes_start;
6225 /* Some wrappers are assigned to random classes */
6226 if (!method->wrapper_type || method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
6227 klass = method->klass;
6229 klass = mono_defaults.object_class;
6231 if (!method->wrapper_type) {
6232 char *full_name = mono_type_full_name (&klass->byval_arg);
6234 hashes [0] = mono_metadata_str_hash (full_name);
6238 hashes [0] = mono_metadata_str_hash (klass->name);
6239 hashes [1] = mono_metadata_str_hash (klass->name_space);
6241 if (method->wrapper_type == MONO_WRAPPER_STFLD || method->wrapper_type == MONO_WRAPPER_LDFLD || method->wrapper_type == MONO_WRAPPER_LDFLDA)
6242 /* The method name includes a stringified pointer */
6245 hashes [2] = mono_metadata_str_hash (method->name);
6246 hashes [3] = method->wrapper_type;
6247 hashes [4] = mono_aot_type_hash (sig->ret);
6249 for (i = 0; i < sig->param_count; i++) {
6250 hashes [hindex ++] = mono_aot_type_hash (sig->params [i]);
6253 for (i = 0; i < ginst->type_argc; ++i)
6254 hashes [hindex ++] = mono_aot_type_hash (ginst->type_argv [i]);
6256 g_assert (hindex == hashes_count);
6258 /* Setup internal state */
6259 a = b = c = 0xdeadbeef + (((guint32)hashes_count)<<2);
6261 /* Handle most of the hashes */
6262 while (hashes_count > 3) {
6271 /* Handle the last 3 hashes (all the case statements fall through) */
6272 switch (hashes_count) {
6273 case 3 : c += hashes [2];
6274 case 2 : b += hashes [1];
6275 case 1 : a += hashes [0];
6277 case 0: /* nothing left to add */
6281 free (hashes_start);
6290 * mono_aot_wrapper_name:
6292 * Return a string which uniqely identifies the given wrapper method.
6295 mono_aot_wrapper_name (MonoMethod *method)
6297 char *name, *tmpsig, *klass_desc;
6299 tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
6301 switch (method->wrapper_type) {
6302 case MONO_WRAPPER_RUNTIME_INVOKE:
6303 if (!strcmp (method->name, "runtime_invoke_dynamic"))
6304 name = g_strdup_printf ("(wrapper runtime-invoke-dynamic)");
6306 name = g_strdup_printf ("%s (%s)", method->name, tmpsig);
6309 klass_desc = mono_type_full_name (&method->klass->byval_arg);
6310 name = g_strdup_printf ("%s:%s (%s)", klass_desc, method->name, tmpsig);
6311 g_free (klass_desc);
6321 * mono_aot_get_array_helper_from_wrapper;
6323 * Get the helper method in Array called by an array wrapper method.
6326 mono_aot_get_array_helper_from_wrapper (MonoMethod *method)
6330 MonoGenericContext ctx;
6331 MonoType *args [16];
6332 char *mname, *iname, *s, *s2, *helper_name = NULL;
6334 prefix = "System.Collections.Generic";
6335 s = g_strdup_printf ("%s", method->name + strlen (prefix) + 1);
6336 s2 = strstr (s, "`1.");
6342 //printf ("X: %s %s\n", iname, mname);
6344 if (!strcmp (iname, "IList"))
6345 helper_name = g_strdup_printf ("InternalArray__%s", mname);
6347 helper_name = g_strdup_printf ("InternalArray__%s_%s", iname, mname);
6348 m = mono_class_get_method_from_name (mono_defaults.array_class, helper_name, mono_method_signature (method)->param_count);
6350 g_free (helper_name);
6353 if (m->is_generic) {
6354 memset (&ctx, 0, sizeof (ctx));
6355 args [0] = &method->klass->element_class->byval_arg;
6356 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
6357 m = mono_class_inflate_generic_method (m, &ctx);
6363 #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
6365 typedef struct HashEntry {
6366 guint32 key, value, index;
6367 struct HashEntry *next;
6371 * emit_extra_methods:
6373 * Emit methods which are not in the METHOD table, like wrappers.
6376 emit_extra_methods (MonoAotCompile *acfg)
6378 int i, table_size, buf_size;
6381 guint32 *info_offsets;
6384 HashEntry *entry, *new_entry;
6385 int nmethods, max_chain_length;
6388 info_offsets = g_new0 (guint32, acfg->extra_methods->len);
6390 /* Emit method info */
6392 for (i = 0; i < acfg->extra_methods->len; ++i) {
6393 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
6394 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
6400 p = buf = g_malloc (buf_size);
6404 method = cfg->method_to_register;
6406 encode_method_ref (acfg, method, p, &p);
6408 g_assert ((p - buf) < buf_size);
6410 info_offsets [i] = add_to_blob (acfg, buf, p - buf);
6415 * Construct a chained hash table for mapping indexes in extra_method_info to
6418 table_size = g_spaced_primes_closest ((int)(nmethods * 1.5));
6419 table = g_ptr_array_sized_new (table_size);
6420 for (i = 0; i < table_size; ++i)
6421 g_ptr_array_add (table, NULL);
6422 chain_lengths = g_new0 (int, table_size);
6423 max_chain_length = 0;
6424 for (i = 0; i < acfg->extra_methods->len; ++i) {
6425 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
6426 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
6432 key = info_offsets [i];
6433 value = get_method_index (acfg, method);
6435 hash = mono_aot_method_hash (method) % table_size;
6437 chain_lengths [hash] ++;
6438 max_chain_length = MAX (max_chain_length, chain_lengths [hash]);
6440 new_entry = mono_mempool_alloc0 (acfg->mempool, sizeof (HashEntry));
6441 new_entry->key = key;
6442 new_entry->value = value;
6444 entry = g_ptr_array_index (table, hash);
6445 if (entry == NULL) {
6446 new_entry->index = hash;
6447 g_ptr_array_index (table, hash) = new_entry;
6450 entry = entry->next;
6452 entry->next = new_entry;
6453 new_entry->index = table->len;
6454 g_ptr_array_add (table, new_entry);
6458 //printf ("MAX: %d\n", max_chain_length);
6460 /* Emit the table */
6461 sprintf (symbol, "extra_method_table");
6462 emit_section_change (acfg, RODATA_SECT, 0);
6463 emit_alignment (acfg, 8);
6464 emit_label (acfg, symbol);
6466 emit_int32 (acfg, table_size);
6467 for (i = 0; i < table->len; ++i) {
6468 HashEntry *entry = g_ptr_array_index (table, i);
6470 if (entry == NULL) {
6471 emit_int32 (acfg, 0);
6472 emit_int32 (acfg, 0);
6473 emit_int32 (acfg, 0);
6475 //g_assert (entry->key > 0);
6476 emit_int32 (acfg, entry->key);
6477 emit_int32 (acfg, entry->value);
6479 emit_int32 (acfg, entry->next->index);
6481 emit_int32 (acfg, 0);
6486 * Emit a table reverse mapping method indexes to their index in extra_method_info.
6487 * This is used by mono_aot_find_jit_info ().
6489 sprintf (symbol, "extra_method_info_offsets");
6490 emit_section_change (acfg, RODATA_SECT, 0);
6491 emit_alignment (acfg, 8);
6492 emit_label (acfg, symbol);
6494 emit_int32 (acfg, acfg->extra_methods->len);
6495 for (i = 0; i < acfg->extra_methods->len; ++i) {
6496 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
6498 emit_int32 (acfg, get_method_index (acfg, method));
6499 emit_int32 (acfg, info_offsets [i]);
6504 emit_exception_info (MonoAotCompile *acfg)
6510 offsets = g_new0 (gint32, acfg->nmethods);
6511 for (i = 0; i < acfg->nmethods; ++i) {
6512 if (acfg->cfgs [i]) {
6513 emit_exception_debug_info (acfg, acfg->cfgs [i]);
6514 offsets [i] = acfg->cfgs [i]->ex_info_offset;
6520 sprintf (symbol, "ex_info_offsets");
6521 emit_section_change (acfg, RODATA_SECT, 1);
6522 emit_alignment (acfg, 8);
6523 emit_label (acfg, symbol);
6525 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->nmethods, 10, offsets);
6530 emit_unwind_info (MonoAotCompile *acfg)
6536 * The unwind info contains a lot of duplicates so we emit each unique
6537 * entry once, and only store the offset from the start of the table in the
6541 sprintf (symbol, "unwind_info");
6542 emit_section_change (acfg, RODATA_SECT, 1);
6543 emit_alignment (acfg, 8);
6544 emit_label (acfg, symbol);
6546 for (i = 0; i < acfg->unwind_ops->len; ++i) {
6547 guint32 index = GPOINTER_TO_UINT (g_ptr_array_index (acfg->unwind_ops, i));
6548 guint8 *unwind_info;
6549 guint32 unwind_info_len;
6553 unwind_info = mono_get_cached_unwind_info (index, &unwind_info_len);
6556 encode_value (unwind_info_len, p, &p);
6557 emit_bytes (acfg, buf, p - buf);
6558 emit_bytes (acfg, unwind_info, unwind_info_len);
6560 acfg->stats.unwind_info_size += (p - buf) + unwind_info_len;
6565 emit_class_info (MonoAotCompile *acfg)
6571 offsets = g_new0 (gint32, acfg->image->tables [MONO_TABLE_TYPEDEF].rows);
6572 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i)
6573 offsets [i] = emit_klass_info (acfg, MONO_TOKEN_TYPE_DEF | (i + 1));
6575 sprintf (symbol, "class_info_offsets");
6576 emit_section_change (acfg, RODATA_SECT, 1);
6577 emit_alignment (acfg, 8);
6578 emit_label (acfg, symbol);
6580 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->image->tables [MONO_TABLE_TYPEDEF].rows, 10, offsets);
6584 typedef struct ClassNameTableEntry {
6585 guint32 token, index;
6586 struct ClassNameTableEntry *next;
6587 } ClassNameTableEntry;
6590 emit_class_name_table (MonoAotCompile *acfg)
6593 guint32 token, hash;
6598 ClassNameTableEntry *entry, *new_entry;
6601 * Construct a chained hash table for mapping class names to typedef tokens.
6603 table_size = g_spaced_primes_closest ((int)(acfg->image->tables [MONO_TABLE_TYPEDEF].rows * 1.5));
6604 table = g_ptr_array_sized_new (table_size);
6605 for (i = 0; i < table_size; ++i)
6606 g_ptr_array_add (table, NULL);
6607 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
6608 token = MONO_TOKEN_TYPE_DEF | (i + 1);
6609 klass = mono_class_get (acfg->image, token);
6611 mono_loader_clear_error ();
6614 full_name = mono_type_get_name_full (mono_class_get_type (klass), MONO_TYPE_NAME_FORMAT_FULL_NAME);
6615 hash = mono_metadata_str_hash (full_name) % table_size;
6618 /* FIXME: Allocate from the mempool */
6619 new_entry = g_new0 (ClassNameTableEntry, 1);
6620 new_entry->token = token;
6622 entry = g_ptr_array_index (table, hash);
6623 if (entry == NULL) {
6624 new_entry->index = hash;
6625 g_ptr_array_index (table, hash) = new_entry;
6628 entry = entry->next;
6630 entry->next = new_entry;
6631 new_entry->index = table->len;
6632 g_ptr_array_add (table, new_entry);
6636 /* Emit the table */
6637 sprintf (symbol, "class_name_table");
6638 emit_section_change (acfg, RODATA_SECT, 0);
6639 emit_alignment (acfg, 8);
6640 emit_label (acfg, symbol);
6642 /* FIXME: Optimize memory usage */
6643 g_assert (table_size < 65000);
6644 emit_int16 (acfg, table_size);
6645 g_assert (table->len < 65000);
6646 for (i = 0; i < table->len; ++i) {
6647 ClassNameTableEntry *entry = g_ptr_array_index (table, i);
6649 if (entry == NULL) {
6650 emit_int16 (acfg, 0);
6651 emit_int16 (acfg, 0);
6653 emit_int16 (acfg, mono_metadata_token_index (entry->token));
6655 emit_int16 (acfg, entry->next->index);
6657 emit_int16 (acfg, 0);
6663 emit_image_table (MonoAotCompile *acfg)
6669 * The image table is small but referenced in a lot of places.
6670 * So we emit it at once, and reference its elements by an index.
6673 sprintf (symbol, "image_table");
6674 emit_section_change (acfg, RODATA_SECT, 1);
6675 emit_alignment (acfg, 8);
6676 emit_label (acfg, symbol);
6678 emit_int32 (acfg, acfg->image_table->len);
6679 for (i = 0; i < acfg->image_table->len; i++) {
6680 MonoImage *image = (MonoImage*)g_ptr_array_index (acfg->image_table, i);
6681 MonoAssemblyName *aname = &image->assembly->aname;
6683 /* FIXME: Support multi-module assemblies */
6684 g_assert (image->assembly->image == image);
6686 emit_string (acfg, image->assembly_name);
6687 emit_string (acfg, image->guid);
6688 emit_string (acfg, aname->culture ? aname->culture : "");
6689 emit_string (acfg, (const char*)aname->public_key_token);
6691 emit_alignment (acfg, 8);
6692 emit_int32 (acfg, aname->flags);
6693 emit_int32 (acfg, aname->major);
6694 emit_int32 (acfg, aname->minor);
6695 emit_int32 (acfg, aname->build);
6696 emit_int32 (acfg, aname->revision);
6701 emit_got_info (MonoAotCompile *acfg)
6704 int i, first_plt_got_patch, buf_size;
6706 guint32 *got_info_offsets;
6708 /* Add the patches needed by the PLT to the GOT */
6709 acfg->plt_got_offset_base = acfg->got_offset;
6710 first_plt_got_patch = acfg->got_patches->len;
6711 for (i = 1; i < acfg->plt_offset; ++i) {
6712 MonoPltEntry *plt_entry = g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
6714 g_ptr_array_add (acfg->got_patches, plt_entry->ji);
6716 acfg->stats.got_slot_types [plt_entry->ji->type] ++;
6719 acfg->got_offset += acfg->plt_offset;
6723 * - optimize offsets table.
6724 * - reduce number of exported symbols.
6725 * - emit info for a klass only once.
6726 * - determine when a method uses a GOT slot which is guaranteed to be already
6728 * - clean up and document the code.
6729 * - use String.Empty in class libs.
6732 /* Encode info required to decode shared GOT entries */
6733 buf_size = acfg->got_patches->len * 128;
6734 p = buf = mono_mempool_alloc (acfg->mempool, buf_size);
6735 got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->got_patches->len * sizeof (guint32));
6736 acfg->plt_got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->plt_offset * sizeof (guint32));
6738 if (acfg->plt_offset)
6739 acfg->plt_got_info_offsets [0] = 0;
6740 for (i = 0; i < acfg->got_patches->len; ++i) {
6741 MonoJumpInfo *ji = g_ptr_array_index (acfg->got_patches, i);
6746 encode_value (ji->type, p, &p);
6748 encode_patch (acfg, ji, p, &p);
6749 acfg->stats.got_slot_info_sizes [ji->type] += p - p2;
6750 g_assert (p - buf <= buf_size);
6751 got_info_offsets [i] = add_to_blob (acfg, buf, p - buf);
6753 if (i >= first_plt_got_patch)
6754 acfg->plt_got_info_offsets [i - first_plt_got_patch + 1] = got_info_offsets [i];
6755 acfg->stats.got_info_size += p - buf;
6758 /* Emit got_info_offsets table */
6759 sprintf (symbol, "got_info_offsets");
6760 emit_section_change (acfg, RODATA_SECT, 1);
6761 emit_alignment (acfg, 8);
6762 emit_label (acfg, symbol);
6764 /* No need to emit offsets for the got plt entries, the plt embeds them directly */
6765 acfg->stats.offsets_size += emit_offset_table (acfg, first_plt_got_patch, 10, (gint32*)got_info_offsets);
6769 emit_got (MonoAotCompile *acfg)
6774 /* Don't make GOT global so accesses to it don't need relocations */
6775 sprintf (symbol, "%s", acfg->got_symbol);
6776 emit_section_change (acfg, ".bss", 0);
6777 emit_alignment (acfg, 8);
6778 emit_local_symbol (acfg, symbol, "got_end", FALSE);
6779 emit_label (acfg, symbol);
6780 if (acfg->got_offset > 0)
6781 emit_zero_bytes (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
6783 sprintf (symbol, "got_end");
6784 emit_label (acfg, symbol);
6788 typedef struct GlobalsTableEntry {
6789 guint32 value, index;
6790 struct GlobalsTableEntry *next;
6791 } GlobalsTableEntry;
6794 emit_globals (MonoAotCompile *acfg)
6800 GlobalsTableEntry *entry, *new_entry;
6802 if (!acfg->aot_opts.static_link)
6806 * When static linking, we emit a table containing our globals.
6810 * Construct a chained hash table for mapping global names to their index in
6811 * the globals table.
6813 table_size = g_spaced_primes_closest ((int)(acfg->globals->len * 1.5));
6814 table = g_ptr_array_sized_new (table_size);
6815 for (i = 0; i < table_size; ++i)
6816 g_ptr_array_add (table, NULL);
6817 for (i = 0; i < acfg->globals->len; ++i) {
6818 char *name = g_ptr_array_index (acfg->globals, i);
6820 hash = mono_metadata_str_hash (name) % table_size;
6822 /* FIXME: Allocate from the mempool */
6823 new_entry = g_new0 (GlobalsTableEntry, 1);
6824 new_entry->value = i;
6826 entry = g_ptr_array_index (table, hash);
6827 if (entry == NULL) {
6828 new_entry->index = hash;
6829 g_ptr_array_index (table, hash) = new_entry;
6832 entry = entry->next;
6834 entry->next = new_entry;
6835 new_entry->index = table->len;
6836 g_ptr_array_add (table, new_entry);
6840 /* Emit the table */
6841 sprintf (symbol, ".Lglobals_hash");
6842 emit_section_change (acfg, RODATA_SECT, 0);
6843 emit_alignment (acfg, 8);
6844 emit_label (acfg, symbol);
6846 /* FIXME: Optimize memory usage */
6847 g_assert (table_size < 65000);
6848 emit_int16 (acfg, table_size);
6849 for (i = 0; i < table->len; ++i) {
6850 GlobalsTableEntry *entry = g_ptr_array_index (table, i);
6852 if (entry == NULL) {
6853 emit_int16 (acfg, 0);
6854 emit_int16 (acfg, 0);
6856 emit_int16 (acfg, entry->value + 1);
6858 emit_int16 (acfg, entry->next->index);
6860 emit_int16 (acfg, 0);
6864 /* Emit the names */
6865 for (i = 0; i < acfg->globals->len; ++i) {
6866 char *name = g_ptr_array_index (acfg->globals, i);
6868 sprintf (symbol, "name_%d", i);
6869 emit_section_change (acfg, RODATA_SECT, 1);
6871 emit_alignment (acfg, 4);
6873 emit_label (acfg, symbol);
6874 emit_string (acfg, name);
6877 /* Emit the globals table */
6878 sprintf (symbol, "globals");
6879 emit_section_change (acfg, ".data", 0);
6880 /* This is not a global, since it is accessed by the init function */
6881 emit_alignment (acfg, 8);
6882 emit_label (acfg, symbol);
6884 sprintf (symbol, "%sglobals_hash", acfg->temp_prefix);
6885 emit_pointer (acfg, symbol);
6887 for (i = 0; i < acfg->globals->len; ++i) {
6888 char *name = g_ptr_array_index (acfg->globals, i);
6890 sprintf (symbol, "name_%d", i);
6891 emit_pointer (acfg, symbol);
6893 sprintf (symbol, "%s", name);
6894 emit_pointer (acfg, symbol);
6896 /* Null terminate the table */
6897 emit_int32 (acfg, 0);
6898 emit_int32 (acfg, 0);
6902 emit_autoreg (MonoAotCompile *acfg)
6907 * Emit a function into the .ctor section which will be called by the ELF
6908 * loader to register this module with the runtime.
6910 if (! (!acfg->use_bin_writer && acfg->aot_opts.static_link && acfg->aot_opts.autoreg))
6913 symbol = g_strdup_printf ("_%s_autoreg", acfg->static_linking_symbol);
6915 arch_emit_autoreg (acfg, symbol);
6921 emit_mem_end (MonoAotCompile *acfg)
6925 sprintf (symbol, "mem_end");
6926 emit_section_change (acfg, ".text", 1);
6927 emit_alignment (acfg, 8);
6928 emit_label (acfg, symbol);
6932 * Emit a structure containing all the information not stored elsewhere.
6935 emit_file_info (MonoAotCompile *acfg)
6940 const char *gc_name;
6943 emit_string_symbol (acfg, "assembly_guid" , acfg->image->guid);
6945 if (acfg->aot_opts.bind_to_runtime_version) {
6946 build_info = mono_get_runtime_build_info ();
6947 emit_string_symbol (acfg, "runtime_version", build_info);
6948 g_free (build_info);
6950 emit_string_symbol (acfg, "runtime_version", "");
6953 /* Emit a string holding the assembly name */
6954 emit_string_symbol (acfg, "assembly_name", acfg->image->assembly->aname.name);
6957 * The managed allocators are GC specific, so can't use an AOT image created by one GC
6960 gc_name = mono_gc_get_gc_name ();
6961 gc_name_offset = add_to_blob (acfg, (guint8*)gc_name, strlen (gc_name) + 1);
6963 sprintf (symbol, "mono_aot_file_info");
6964 emit_section_change (acfg, ".data", 0);
6965 emit_alignment (acfg, 8);
6966 emit_label (acfg, symbol);
6967 if (!acfg->aot_opts.static_link)
6968 emit_global (acfg, symbol, FALSE);
6970 /* The data emitted here must match MonoAotFileInfo. */
6972 emit_int32 (acfg, MONO_AOT_FILE_VERSION);
6973 emit_int32 (acfg, 0);
6976 * We emit pointers to our data structures instead of emitting global symbols which
6977 * point to them, to reduce the number of globals, and because using globals leads to
6978 * various problems (i.e. arm/thumb).
6980 emit_pointer (acfg, acfg->got_symbol);
6981 emit_pointer (acfg, "methods");
6984 * Emit a reference to the mono_eh_frame table created by our modified LLVM compiler.
6986 emit_pointer (acfg, "mono_eh_frame");
6988 emit_pointer (acfg, NULL);
6990 emit_pointer (acfg, "blob");
6991 emit_pointer (acfg, "class_name_table");
6992 emit_pointer (acfg, "class_info_offsets");
6993 emit_pointer (acfg, "method_info_offsets");
6994 emit_pointer (acfg, "ex_info_offsets");
6995 emit_pointer (acfg, "code_offsets");
6996 emit_pointer (acfg, "extra_method_info_offsets");
6997 emit_pointer (acfg, "extra_method_table");
6998 emit_pointer (acfg, "got_info_offsets");
6999 emit_pointer (acfg, "methods_end");
7000 emit_pointer (acfg, "unwind_info");
7001 emit_pointer (acfg, "mem_end");
7002 emit_pointer (acfg, "image_table");
7003 emit_pointer (acfg, "plt");
7004 emit_pointer (acfg, "plt_end");
7005 emit_pointer (acfg, "assembly_guid");
7006 emit_pointer (acfg, "runtime_version");
7007 if (acfg->num_trampoline_got_entries) {
7008 emit_pointer (acfg, "specific_trampolines");
7009 emit_pointer (acfg, "static_rgctx_trampolines");
7010 emit_pointer (acfg, "imt_thunks");
7012 emit_pointer (acfg, NULL);
7013 emit_pointer (acfg, NULL);
7014 emit_pointer (acfg, NULL);
7016 if (acfg->thumb_mixed) {
7017 emit_pointer (acfg, "thumb_end");
7019 emit_pointer (acfg, NULL);
7021 if (acfg->aot_opts.static_link) {
7022 emit_pointer (acfg, "globals");
7024 emit_pointer (acfg, NULL);
7026 emit_pointer (acfg, "assembly_name");
7027 emit_pointer (acfg, "unbox_trampolines");
7028 emit_pointer (acfg, "unbox_trampolines_end");
7030 emit_int32 (acfg, acfg->plt_got_offset_base);
7031 emit_int32 (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
7032 emit_int32 (acfg, acfg->plt_offset);
7033 emit_int32 (acfg, acfg->nmethods);
7034 emit_int32 (acfg, acfg->flags);
7035 emit_int32 (acfg, acfg->opts);
7036 emit_int32 (acfg, acfg->simd_opts);
7037 emit_int32 (acfg, gc_name_offset);
7039 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
7040 emit_int32 (acfg, acfg->num_trampolines [i]);
7041 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
7042 emit_int32 (acfg, acfg->trampoline_got_offset_base [i]);
7043 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
7044 emit_int32 (acfg, acfg->trampoline_size [i]);
7046 #if defined (TARGET_ARM) && defined (__APPLE__)
7051 t.type = MONO_TYPE_R8;
7052 mono_type_size (&t, &align);
7054 emit_int32 (acfg, align);
7056 t.type = MONO_TYPE_I8;
7057 mono_type_size (&t, &align);
7059 emit_int32 (acfg, align);
7062 emit_int32 (acfg, __alignof__ (double));
7063 emit_int32 (acfg, __alignof__ (gint64));
7066 if (acfg->aot_opts.static_link) {
7070 * Emit a global symbol which can be passed by an embedding app to
7071 * mono_aot_register_module (). The symbol points to a pointer to the the file info
7074 #if defined(__APPLE__) && !defined(__native_client_codegen__)
7075 sprintf (symbol, "_mono_aot_module_%s_info", acfg->image->assembly->aname.name);
7077 sprintf (symbol, "mono_aot_module_%s_info", acfg->image->assembly->aname.name);
7080 /* Get rid of characters which cannot occur in symbols */
7082 for (p = symbol; *p; ++p) {
7083 if (!(isalnum (*p) || *p == '_'))
7086 acfg->static_linking_symbol = g_strdup (symbol);
7087 emit_global_inner (acfg, symbol, FALSE);
7088 emit_label (acfg, symbol);
7089 emit_pointer (acfg, "mono_aot_file_info");
7094 emit_blob (MonoAotCompile *acfg)
7098 sprintf (symbol, "blob");
7099 emit_section_change (acfg, RODATA_SECT, 1);
7100 emit_alignment (acfg, 8);
7101 emit_label (acfg, symbol);
7103 emit_bytes (acfg, (guint8*)acfg->blob.data, acfg->blob.index);
7107 emit_dwarf_info (MonoAotCompile *acfg)
7109 #ifdef EMIT_DWARF_INFO
7111 char symbol [128], symbol2 [128];
7113 /* DIEs for methods */
7114 for (i = 0; i < acfg->nmethods; ++i) {
7115 MonoCompile *cfg = acfg->cfgs [i];
7120 // FIXME: LLVM doesn't define .Lme_...
7121 if (cfg->compile_llvm)
7124 sprintf (symbol, "%s", cfg->asm_symbol);
7125 sprintf (symbol2, "%sme_%x", acfg->temp_prefix, i);
7127 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 ()));
7133 collect_methods (MonoAotCompile *acfg)
7136 MonoImage *image = acfg->image;
7138 /* Collect methods */
7139 for (i = 0; i < image->tables [MONO_TABLE_METHOD].rows; ++i) {
7141 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
7143 method = mono_get_method (acfg->image, token, NULL);
7146 printf ("Failed to load method 0x%x from '%s'.\n", token, image->name);
7150 /* Load all methods eagerly to skip the slower lazy loading code */
7151 mono_class_setup_methods (method->klass);
7153 if (acfg->aot_opts.full_aot && method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
7154 /* Compile the wrapper instead */
7155 /* We do this here instead of add_wrappers () because it is easy to do it here */
7156 MonoMethod *wrapper = mono_marshal_get_native_wrapper (method, check_for_pending_exc, TRUE);
7160 /* FIXME: Some mscorlib methods don't have debug info */
7162 if (acfg->aot_opts.soft_debug && !method->wrapper_type) {
7163 if (!((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
7164 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
7165 (method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
7166 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))) {
7167 if (!mono_debug_lookup_method (method)) {
7168 fprintf (stderr, "Method %s has no debug info, probably the .mdb file for the assembly is missing.\n", mono_method_full_name (method, TRUE));
7175 /* Since we add the normal methods first, their index will be equal to their zero based token index */
7176 add_method_with_index (acfg, method, i, FALSE);
7177 acfg->method_index ++;
7180 add_generic_instances (acfg);
7182 if (acfg->aot_opts.full_aot)
7183 add_wrappers (acfg);
7187 compile_methods (MonoAotCompile *acfg)
7191 if (acfg->aot_opts.nthreads > 0) {
7196 gpointer *user_data;
7197 MonoMethod **methods;
7199 methods_len = acfg->methods->len;
7201 len = acfg->methods->len / acfg->aot_opts.nthreads;
7204 * Partition the list of methods into fragments, and hand it to threads to
7207 threads = g_ptr_array_new ();
7208 /* Make a copy since acfg->methods is modified by compile_method () */
7209 methods = g_new0 (MonoMethod*, methods_len);
7210 //memcpy (methods, g_ptr_array_index (acfg->methods, 0), sizeof (MonoMethod*) * methods_len);
7211 for (i = 0; i < methods_len; ++i)
7212 methods [i] = g_ptr_array_index (acfg->methods, i);
7214 while (i < methods_len) {
7215 frag = g_ptr_array_new ();
7216 for (j = 0; j < len; ++j) {
7217 if (i < methods_len) {
7218 g_ptr_array_add (frag, methods [i]);
7223 user_data = g_new0 (gpointer, 3);
7224 user_data [0] = mono_domain_get ();
7225 user_data [1] = acfg;
7226 user_data [2] = frag;
7228 handle = mono_create_thread (NULL, 0, (gpointer)compile_thread_main, user_data, 0, NULL);
7229 g_ptr_array_add (threads, handle);
7233 for (i = 0; i < threads->len; ++i) {
7234 WaitForSingleObjectEx (g_ptr_array_index (threads, i), INFINITE, FALSE);
7240 /* Compile methods added by compile_method () or all methods if nthreads == 0 */
7241 for (i = methods_len; i < acfg->methods->len; ++i) {
7242 /* This can new methods to acfg->methods */
7243 compile_method (acfg, g_ptr_array_index (acfg->methods, i));
7248 compile_asm (MonoAotCompile *acfg)
7250 char *command, *objfile;
7251 char *outfile_name, *tmp_outfile_name;
7252 const char *tool_prefix = acfg->aot_opts.tool_prefix ? acfg->aot_opts.tool_prefix : "";
7254 #if defined(TARGET_AMD64)
7255 #define AS_OPTIONS "--64"
7256 #elif defined(TARGET_POWERPC64)
7257 #define AS_OPTIONS "-a64 -mppc64"
7258 #define LD_OPTIONS "-m elf64ppc"
7259 #elif defined(sparc) && SIZEOF_VOID_P == 8
7260 #define AS_OPTIONS "-xarch=v9"
7261 #elif defined(TARGET_X86) && defined(__APPLE__) && !defined(__native_client_codegen__)
7262 #define AS_OPTIONS "-arch i386 -W"
7264 #define AS_OPTIONS ""
7267 #ifdef __native_client_codegen__
7268 #if defined(TARGET_AMD64)
7269 #define AS_NAME "nacl64-as"
7271 #define AS_NAME "nacl-as"
7274 #define AS_NAME "as"
7278 #define LD_OPTIONS ""
7281 #define EH_LD_OPTIONS ""
7283 if (acfg->aot_opts.asm_only) {
7284 printf ("Output file: '%s'.\n", acfg->tmpfname);
7285 if (acfg->aot_opts.static_link)
7286 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
7290 if (acfg->aot_opts.static_link) {
7291 if (acfg->aot_opts.outfile)
7292 objfile = g_strdup_printf ("%s", acfg->aot_opts.outfile);
7294 objfile = g_strdup_printf ("%s.o", acfg->image->name);
7296 objfile = g_strdup_printf ("%s.o", acfg->tmpfname);
7298 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);
7299 printf ("Executing the native assembler: %s\n", command);
7300 if (system (command) != 0) {
7308 if (acfg->aot_opts.static_link) {
7309 printf ("Output file: '%s'.\n", objfile);
7310 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
7315 if (acfg->aot_opts.outfile)
7316 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
7318 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
7320 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
7323 command = g_strdup_printf ("ld -shared -G -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
7324 #elif defined(__ppc__) && defined(__APPLE__)
7325 command = g_strdup_printf ("gcc -dynamiclib -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
7326 #elif defined(HOST_WIN32)
7327 command = g_strdup_printf ("gcc -shared --dll -mno-cygwin -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
7328 #elif defined(TARGET_X86) && defined(__APPLE__) && !defined(__native_client_codegen__)
7329 command = g_strdup_printf ("gcc -m32 -dynamiclib -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
7331 command = g_strdup_printf ("%sld %s %s -shared -o %s %s.o", tool_prefix, EH_LD_OPTIONS, LD_OPTIONS, tmp_outfile_name, acfg->tmpfname);
7333 printf ("Executing the native linker: %s\n", command);
7334 if (system (command) != 0) {
7335 g_free (tmp_outfile_name);
7336 g_free (outfile_name);
7344 /*com = g_strdup_printf ("strip --strip-unneeded %s%s", acfg->image->name, SHARED_EXT);
7345 printf ("Stripping the binary: %s\n", com);
7349 #if defined(TARGET_ARM) && !defined(__APPLE__)
7351 * gas generates 'mapping symbols' each time code and data is mixed, which
7352 * happens a lot in emit_and_reloc_code (), so we need to get rid of them.
7354 command = g_strdup_printf ("%sstrip --strip-symbol=\\$a --strip-symbol=\\$d %s", tool_prefix, tmp_outfile_name);
7355 printf ("Stripping the binary: %s\n", command);
7356 if (system (command) != 0) {
7357 g_free (tmp_outfile_name);
7358 g_free (outfile_name);
7365 rename (tmp_outfile_name, outfile_name);
7367 #if defined(__APPLE__)
7368 command = g_strdup_printf ("dsymutil %s", outfile_name);
7369 printf ("Generating debug symbols: %s\n", command);
7370 if (system (command) != 0) {
7375 if (!acfg->aot_opts.save_temps)
7378 g_free (tmp_outfile_name);
7379 g_free (outfile_name);
7382 if (acfg->aot_opts.save_temps)
7383 printf ("Retained input file.\n");
7385 unlink (acfg->tmpfname);
7390 static MonoAotCompile*
7391 acfg_create (MonoAssembly *ass, guint32 opts)
7393 MonoImage *image = ass->image;
7394 MonoAotCompile *acfg;
7397 acfg = g_new0 (MonoAotCompile, 1);
7398 acfg->methods = g_ptr_array_new ();
7399 acfg->method_indexes = g_hash_table_new (NULL, NULL);
7400 acfg->method_depth = g_hash_table_new (NULL, NULL);
7401 acfg->plt_offset_to_entry = g_hash_table_new (NULL, NULL);
7402 acfg->patch_to_plt_entry = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
7403 acfg->patch_to_got_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
7404 acfg->patch_to_got_offset_by_type = g_new0 (GHashTable*, MONO_PATCH_INFO_NUM);
7405 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i)
7406 acfg->patch_to_got_offset_by_type [i] = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
7407 acfg->got_patches = g_ptr_array_new ();
7408 acfg->method_to_cfg = g_hash_table_new (NULL, NULL);
7409 acfg->token_info_hash = g_hash_table_new_full (NULL, NULL, NULL, g_free);
7410 acfg->method_to_pinvoke_import = g_hash_table_new_full (NULL, NULL, NULL, g_free);
7411 acfg->image_hash = g_hash_table_new (NULL, NULL);
7412 acfg->image_table = g_ptr_array_new ();
7413 acfg->globals = g_ptr_array_new ();
7414 acfg->image = image;
7416 /* TODO: Write out set of SIMD instructions used, rather than just those available */
7417 acfg->simd_opts = mono_arch_cpu_enumerate_simd_versions ();
7418 acfg->mempool = mono_mempool_new ();
7419 acfg->extra_methods = g_ptr_array_new ();
7420 acfg->unwind_info_offsets = g_hash_table_new (NULL, NULL);
7421 acfg->unwind_ops = g_ptr_array_new ();
7422 acfg->method_label_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
7423 acfg->method_order = g_ptr_array_new ();
7424 acfg->export_names = g_hash_table_new (NULL, NULL);
7425 acfg->klass_blob_hash = g_hash_table_new (NULL, NULL);
7426 acfg->method_blob_hash = g_hash_table_new (NULL, NULL);
7427 acfg->plt_entry_debug_sym_cache = g_hash_table_new (g_str_hash, g_str_equal);
7428 InitializeCriticalSection (&acfg->mutex);
7434 acfg_free (MonoAotCompile *acfg)
7438 img_writer_destroy (acfg->w);
7439 for (i = 0; i < acfg->nmethods; ++i)
7441 g_free (acfg->cfgs [i]);
7442 g_free (acfg->cfgs);
7443 g_free (acfg->static_linking_symbol);
7444 g_free (acfg->got_symbol);
7445 g_free (acfg->plt_symbol);
7446 g_ptr_array_free (acfg->methods, TRUE);
7447 g_ptr_array_free (acfg->got_patches, TRUE);
7448 g_ptr_array_free (acfg->image_table, TRUE);
7449 g_ptr_array_free (acfg->globals, TRUE);
7450 g_ptr_array_free (acfg->unwind_ops, TRUE);
7451 g_hash_table_destroy (acfg->method_indexes);
7452 g_hash_table_destroy (acfg->method_depth);
7453 g_hash_table_destroy (acfg->plt_offset_to_entry);
7454 g_hash_table_destroy (acfg->patch_to_plt_entry);
7455 g_hash_table_destroy (acfg->patch_to_got_offset);
7456 g_hash_table_destroy (acfg->method_to_cfg);
7457 g_hash_table_destroy (acfg->token_info_hash);
7458 g_hash_table_destroy (acfg->method_to_pinvoke_import);
7459 g_hash_table_destroy (acfg->image_hash);
7460 g_hash_table_destroy (acfg->unwind_info_offsets);
7461 g_hash_table_destroy (acfg->method_label_hash);
7462 g_hash_table_destroy (acfg->export_names);
7463 g_hash_table_destroy (acfg->plt_entry_debug_sym_cache);
7464 g_hash_table_destroy (acfg->klass_blob_hash);
7465 g_hash_table_destroy (acfg->method_blob_hash);
7466 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i)
7467 g_hash_table_destroy (acfg->patch_to_got_offset_by_type [i]);
7468 g_free (acfg->patch_to_got_offset_by_type);
7469 mono_mempool_destroy (acfg->mempool);
7474 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
7476 MonoImage *image = ass->image;
7478 MonoAotCompile *acfg;
7479 char *outfile_name, *tmp_outfile_name, *p;
7483 printf ("Mono Ahead of Time compiler - compiling assembly %s\n", image->name);
7485 acfg = acfg_create (ass, opts);
7487 memset (&acfg->aot_opts, 0, sizeof (acfg->aot_opts));
7488 acfg->aot_opts.write_symbols = TRUE;
7489 acfg->aot_opts.ntrampolines = 1024;
7490 acfg->aot_opts.nrgctx_trampolines = 1024;
7491 acfg->aot_opts.nimt_trampolines = 128;
7492 acfg->aot_opts.llvm_path = g_strdup ("");
7494 mono_aot_parse_options (aot_options, &acfg->aot_opts);
7496 if (acfg->aot_opts.static_link)
7497 acfg->aot_opts.autoreg = TRUE;
7499 //acfg->aot_opts.print_skipped_methods = TRUE;
7501 #ifndef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
7502 if (acfg->aot_opts.full_aot) {
7503 printf ("--aot=full is not supported on this platform.\n");
7508 if (acfg->aot_opts.direct_pinvoke && !acfg->aot_opts.static_link) {
7509 fprintf (stderr, "The 'direct-pinvoke' AOT option also requires the 'static' AOT option.\n");
7513 if (acfg->aot_opts.static_link)
7514 acfg->aot_opts.asm_writer = TRUE;
7516 if (acfg->aot_opts.soft_debug) {
7517 MonoDebugOptions *opt = mini_get_debug_options ();
7519 opt->mdb_optimizations = TRUE;
7520 opt->gen_seq_points = TRUE;
7522 if (mono_debug_format == MONO_DEBUG_FORMAT_NONE) {
7523 fprintf (stderr, "The soft-debug AOT option requires the --debug option.\n");
7526 acfg->flags |= MONO_AOT_FILE_FLAG_DEBUG;
7529 if (mono_use_llvm) {
7531 acfg->aot_opts.asm_writer = TRUE;
7532 acfg->flags |= MONO_AOT_FILE_FLAG_WITH_LLVM;
7534 if (acfg->aot_opts.soft_debug) {
7535 fprintf (stderr, "The 'soft-debug' option is not supported when compiling with LLVM.\n");
7540 if (acfg->aot_opts.full_aot)
7541 acfg->flags |= MONO_AOT_FILE_FLAG_FULL_AOT;
7543 load_profile_files (acfg);
7545 acfg->num_trampolines [MONO_AOT_TRAMP_SPECIFIC] = acfg->aot_opts.full_aot ? acfg->aot_opts.ntrampolines : 0;
7546 #ifdef MONO_ARCH_GSHARED_SUPPORTED
7547 acfg->num_trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = acfg->aot_opts.full_aot ? acfg->aot_opts.nrgctx_trampolines : 0;
7549 acfg->num_trampolines [MONO_AOT_TRAMP_IMT_THUNK] = acfg->aot_opts.full_aot ? acfg->aot_opts.nimt_trampolines : 0;
7551 acfg->temp_prefix = img_writer_get_temp_label_prefix (NULL);
7555 acfg->got_symbol_base = g_strdup_printf ("mono_aot_%s_got", acfg->image->assembly->aname.name);
7556 acfg->plt_symbol = g_strdup_printf ("%smono_aot_%s_plt", acfg->llvm_label_prefix, acfg->image->assembly->aname.name);
7557 acfg->assembly_name_sym = g_strdup (acfg->image->assembly->aname.name);
7559 /* Get rid of characters which cannot occur in symbols */
7560 for (p = acfg->got_symbol_base; *p; ++p) {
7561 if (!(isalnum (*p) || *p == '_'))
7564 for (p = acfg->plt_symbol; *p; ++p) {
7565 if (!(isalnum (*p) || *p == '_'))
7568 for (p = acfg->assembly_name_sym; *p; ++p) {
7569 if (!(isalnum (*p) || *p == '_'))
7573 acfg->method_index = 1;
7575 collect_methods (acfg);
7577 acfg->cfgs_size = acfg->methods->len + 32;
7578 acfg->cfgs = g_new0 (MonoCompile*, acfg->cfgs_size);
7580 /* PLT offset 0 is reserved for the PLT trampoline */
7581 acfg->plt_offset = 1;
7586 mono_llvm_create_aot_module (acfg->got_symbol_base);
7590 /* GOT offset 0 is reserved for the address of the current assembly */
7594 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
7595 ji->type = MONO_PATCH_INFO_IMAGE;
7596 ji->data.image = acfg->image;
7598 get_got_offset (acfg, ji);
7600 /* Slot 1 is reserved for the mscorlib got addr */
7601 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
7602 ji->type = MONO_PATCH_INFO_MSCORLIB_GOT_ADDR;
7603 get_got_offset (acfg, ji);
7605 /* This is very common */
7606 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
7607 ji->type = MONO_PATCH_INFO_GC_CARD_TABLE_ADDR;
7608 get_got_offset (acfg, ji);
7613 compile_methods (acfg);
7617 acfg->stats.jit_time = TV_ELAPSED (atv, btv);
7623 if (acfg->aot_opts.asm_only) {
7624 if (acfg->aot_opts.outfile)
7625 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
7627 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
7629 acfg->tmpfname = g_strdup ("temp.s");
7632 emit_llvm_file (acfg);
7636 if (!acfg->aot_opts.asm_only && !acfg->aot_opts.asm_writer && bin_writer_supported ()) {
7637 if (acfg->aot_opts.outfile)
7638 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
7640 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
7643 * Can't use g_file_open_tmp () as it will be deleted at exit, and
7644 * it might be in another file system so the rename () won't work.
7646 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
7648 acfg->fp = fopen (tmp_outfile_name, "w");
7650 printf ("Unable to create temporary file '%s': %s\n", tmp_outfile_name, strerror (errno));
7654 acfg->w = img_writer_create (acfg->fp, TRUE);
7655 acfg->use_bin_writer = TRUE;
7658 /* Append to the .s file created by llvm */
7659 /* FIXME: Use multiple files instead */
7660 acfg->fp = fopen (acfg->tmpfname, "a+");
7662 if (acfg->aot_opts.asm_only) {
7663 if (acfg->aot_opts.outfile)
7664 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
7666 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
7667 acfg->fp = fopen (acfg->tmpfname, "w+");
7669 int i = g_file_open_tmp ("mono_aot_XXXXXX", &acfg->tmpfname, NULL);
7670 acfg->fp = fdopen (i, "w+");
7672 if (acfg->fp == 0) {
7673 fprintf (stderr, "Unable to open file '%s': %s\n", acfg->tmpfname, strerror (errno));
7677 acfg->w = img_writer_create (acfg->fp, FALSE);
7679 tmp_outfile_name = NULL;
7680 outfile_name = NULL;
7683 acfg->got_symbol = g_strdup_printf ("%s%s", acfg->llvm_label_prefix, acfg->got_symbol_base);
7685 /* Compute symbols for methods */
7686 for (i = 0; i < acfg->nmethods; ++i) {
7687 if (acfg->cfgs [i]) {
7688 MonoCompile *cfg = acfg->cfgs [i];
7689 int method_index = get_method_index (acfg, cfg->orig_method);
7691 if (COMPILE_LLVM (cfg))
7692 cfg->asm_symbol = g_strdup_printf ("%s%s", acfg->llvm_label_prefix, cfg->llvm_method_name);
7694 cfg->asm_symbol = g_strdup_printf ("%s%sm_%x", acfg->temp_prefix, acfg->llvm_label_prefix, method_index);
7698 if (!acfg->aot_opts.nodebug)
7699 acfg->dwarf = mono_dwarf_writer_create (acfg->w, NULL, 0, FALSE);
7701 img_writer_emit_start (acfg->w);
7704 mono_dwarf_writer_emit_base_info (acfg->dwarf, mono_unwind_get_cie_program ());
7706 if (acfg->thumb_mixed) {
7709 * This global symbol marks the end of THUMB code, and the beginning of ARM
7710 * code generated by our JIT.
7712 sprintf (symbol, "thumb_end");
7713 emit_section_change (acfg, ".text", 0);
7714 emit_alignment (acfg, 8);
7715 emit_label (acfg, symbol);
7716 emit_zero_bytes (acfg, 16);
7718 fprintf (acfg->fp, ".arm\n");
7725 emit_extra_methods (acfg);
7727 emit_trampolines (acfg);
7729 emit_class_name_table (acfg);
7731 emit_got_info (acfg);
7733 emit_exception_info (acfg);
7735 emit_unwind_info (acfg);
7737 emit_class_info (acfg);
7741 emit_image_table (acfg);
7745 emit_file_info (acfg);
7749 emit_globals (acfg);
7751 emit_autoreg (acfg);
7754 emit_dwarf_info (acfg);
7755 mono_dwarf_writer_close (acfg->dwarf);
7758 emit_mem_end (acfg);
7760 if (acfg->need_pt_gnu_stack) {
7761 /* This is required so the .so doesn't have an executable stack */
7762 /* The bin writer already emits this */
7763 if (!acfg->use_bin_writer)
7764 fprintf (acfg->fp, "\n.section .note.GNU-stack,\"\",@progbits\n");
7769 acfg->stats.gen_time = TV_ELAPSED (atv, btv);
7772 g_assert (acfg->got_offset <= acfg->final_got_size);
7774 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);
7777 res = img_writer_emit_writeout (acfg->w);
7782 if (acfg->use_bin_writer) {
7783 int err = rename (tmp_outfile_name, outfile_name);
7786 printf ("Unable to rename '%s' to '%s': %s\n", tmp_outfile_name, outfile_name, strerror (errno));
7790 res = compile_asm (acfg);
7797 acfg->stats.link_time = TV_ELAPSED (atv, btv);
7799 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);
7800 if (acfg->stats.genericcount)
7801 printf ("%d methods are generic (%d%%)\n", acfg->stats.genericcount, acfg->stats.mcount ? (acfg->stats.genericcount * 100) / acfg->stats.mcount : 100);
7802 if (acfg->stats.abscount)
7803 printf ("%d methods contain absolute addresses (%d%%)\n", acfg->stats.abscount, acfg->stats.mcount ? (acfg->stats.abscount * 100) / acfg->stats.mcount : 100);
7804 if (acfg->stats.lmfcount)
7805 printf ("%d methods contain lmf pointers (%d%%)\n", acfg->stats.lmfcount, acfg->stats.mcount ? (acfg->stats.lmfcount * 100) / acfg->stats.mcount : 100);
7806 if (acfg->stats.ocount)
7807 printf ("%d methods have other problems (%d%%)\n", acfg->stats.ocount, acfg->stats.mcount ? (acfg->stats.ocount * 100) / acfg->stats.mcount : 100);
7809 printf ("Methods compiled with LLVM: %d (%d%%)\n", acfg->stats.llvm_count, acfg->stats.mcount ? (acfg->stats.llvm_count * 100) / acfg->stats.mcount : 100);
7810 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);
7811 printf ("Direct calls: %d (%d%%)\n", acfg->stats.direct_calls, acfg->stats.all_calls ? (acfg->stats.direct_calls * 100) / acfg->stats.all_calls : 100);
7813 if (acfg->aot_opts.stats) {
7816 printf ("GOT slot distribution:\n");
7817 for (i = 0; i < MONO_PATCH_INFO_NONE; ++i)
7818 if (acfg->stats.got_slot_types [i])
7819 printf ("\t%s: %d (%d)\n", get_patch_name (i), acfg->stats.got_slot_types [i], acfg->stats.got_slot_info_sizes [i]);
7822 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);
7834 mono_aot_readonly_field_override (MonoClassField *field)
7840 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)