2 * aot.c: mono Ahead of Time compiler
5 * Dietmar Maurer (dietmar@ximian.com)
6 * Zoltan Varga (vargaz@gmail.com)
8 * (C) 2002 Ximian, Inc.
12 #include <sys/types.h>
16 #ifndef PLATFORM_WIN32
25 #include <limits.h> /* for PAGESIZE */
30 #include <mono/metadata/tabledefs.h>
31 #include <mono/metadata/class.h>
32 #include <mono/metadata/object.h>
33 #include <mono/metadata/tokentype.h>
34 #include <mono/metadata/appdomain.h>
35 #include <mono/metadata/debug-helpers.h>
36 #include <mono/metadata/assembly.h>
37 #include <mono/metadata/metadata-internals.h>
38 #include <mono/metadata/marshal.h>
39 #include <mono/utils/mono-logger.h>
40 #include "mono/utils/mono-compiler.h"
47 #define SHARED_EXT ".dll"
48 #elif defined(__ppc__) && defined(__MACH__)
49 #define SHARED_EXT ".dylib"
51 #define SHARED_EXT ".so"
54 #if defined(sparc) || defined(__ppc__)
55 #define AS_STRING_DIRECTIVE ".asciz"
58 #define AS_STRING_DIRECTIVE ".string"
61 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
62 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
64 typedef struct MonoAotOptions {
67 gboolean write_symbols;
68 gboolean metadata_only;
71 typedef struct MonoAotStats {
72 int ccount, mcount, lmfcount, abscount, wrappercount, gcount, ocount;
73 int code_size, info_size, ex_info_size, got_size, class_info_size, got_info_size, got_info_offsets_size;
74 int methods_without_got_slots, direct_calls, all_calls;
76 int got_slot_types [MONO_PATCH_INFO_NONE];
79 /*#define USE_ELF_WRITER 1*/
81 #if defined(USE_ELF_WRITER)
82 #define USE_BIN_WRITER 1
87 typedef struct _BinSymbol BinSymbol;
88 typedef struct _BinReloc BinReloc;
89 typedef struct _BinSection BinSection;
103 typedef struct MonoAotCompile {
106 GHashTable *patch_to_plt_offset;
107 GHashTable *plt_offset_to_patch;
108 GHashTable *patch_to_shared_got_offset;
109 GPtrArray *shared_patches;
110 GHashTable *image_hash;
111 GHashTable *method_to_cfg;
112 GPtrArray *image_table;
114 guint32 got_offset, plt_offset;
115 guint32 *method_got_offsets;
116 gboolean *has_got_slots;
117 MonoAotOptions aot_opts;
120 MonoMemPool *mempool;
122 #ifdef USE_BIN_WRITER
124 BinSection *sections;
125 BinSection *cur_section;
126 BinReloc *relocations;
132 int mode; /* emit mode */
133 int col_count; /* bytes emitted per .byte line */
137 /* Keep in synch with MonoJumpInfoType */
138 static const char* patch_types [] = {
173 is_got_patch (MonoJumpInfoType patch_type)
177 #elif defined(__i386__)
184 #if defined(__ppc__) && defined(__MACH__)
186 ilog2(register int value)
189 while (value & ~0xf) count += 4, value >>= 4;
190 while (value) count++, value >>= 1;
195 #ifdef USE_BIN_WRITER
197 typedef struct _BinLabel BinLabel;
208 BinSection *val2_section;
220 gboolean is_function;
238 emit_start (MonoAotCompile *acfg)
240 acfg->labels = g_hash_table_new (g_str_hash, g_str_equal);
244 emit_section_change (MonoAotCompile *acfg, const char *section_name, int subsection_index)
248 if (acfg->cur_section && acfg->cur_section->subsection == subsection_index
249 && strcmp (acfg->cur_section->name, section_name) == 0)
251 for (section = acfg->sections; section; section = section->next) {
252 if (section->subsection == subsection_index && strcmp (section->name, section_name) == 0) {
253 acfg->cur_section = section;
258 section = g_new0 (BinSection, 1);
259 section->name = g_strdup (section_name);
260 section->subsection = subsection_index;
261 section->next = acfg->sections;
262 acfg->sections = section;
263 acfg->cur_section = section;
268 emit_global (MonoAotCompile *acfg, const char *name, gboolean func)
270 BinSymbol *symbol = g_new0 (BinSymbol, 1);
271 symbol->name = g_strdup (name);
272 symbol->is_function = func;
273 symbol->is_global = TRUE;
274 symbol->section = acfg->cur_section;
275 /* FIXME: we align after this call... */
276 symbol->offset = symbol->section->cur_offset;
277 symbol->next = acfg->symbols;
278 acfg->symbols = symbol;
282 emit_label (MonoAotCompile *acfg, const char *name)
284 BinLabel *label = g_new0 (BinLabel, 1);
285 label->name = g_strdup (name);
286 label->section = acfg->cur_section;
287 label->offset = acfg->cur_section->cur_offset;
288 g_hash_table_insert (acfg->labels, label->name, label);
292 emit_ensure_buffer (BinSection *section, int size)
294 int new_offset = section->cur_offset + size;
295 if (new_offset >= section->data_len) {
296 int new_size = section->data_len? section->data_len * 2: 256;
298 while (new_size <= new_offset)
300 data = g_malloc0 (new_size);
301 memcpy (data, section->data, section->data_len);
302 g_free (section->data);
303 section->data = data;
304 section->data_len = new_size;
309 emit_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
311 emit_ensure_buffer (acfg->cur_section, size);
312 memcpy (acfg->cur_section->data + acfg->cur_section->cur_offset, buf, size);
313 acfg->cur_section->cur_offset += size;
317 emit_string (MonoAotCompile *acfg, const char *value)
319 int size = strlen (value) + 1;
320 emit_bytes (acfg, (const guint8*)value, size);
324 emit_line (MonoAotCompile *acfg)
326 /* Nothing to do in binary writer */
330 emit_string_symbol (MonoAotCompile *acfg, const char *name, const char *value)
332 emit_section_change (acfg, ".text", 1);
333 emit_global (acfg, name, FALSE);
334 emit_label (acfg, name);
335 emit_string (acfg, value);
339 emit_alignment (MonoAotCompile *acfg, int size)
341 int offset = acfg->cur_section->cur_offset;
343 offset += (size - 1);
344 offset &= ~(size - 1);
345 add = offset - acfg->cur_section->cur_offset;
347 emit_ensure_buffer (acfg->cur_section, add);
348 acfg->cur_section->cur_offset += add;
353 emit_pointer (MonoAotCompile *acfg, const char *target)
356 emit_alignment (acfg, sizeof (gpointer));
357 reloc = g_new0 (BinReloc, 1);
358 reloc->val1 = g_strdup (target);
359 reloc->section = acfg->cur_section;
360 reloc->section_offset = acfg->cur_section->cur_offset;
361 reloc->next = acfg->relocations;
362 acfg->relocations = reloc;
363 if (strcmp (reloc->section->name, ".data") == 0) {
365 g_print ("reloc: %s at %d\n", target, acfg->cur_section->cur_offset);
367 acfg->cur_section->cur_offset += sizeof (gpointer);
371 emit_int16 (MonoAotCompile *acfg, int value)
374 emit_ensure_buffer (acfg->cur_section, 2);
375 data = acfg->cur_section->data + acfg->cur_section->cur_offset;
376 acfg->cur_section->cur_offset += 2;
377 /* FIXME: little endian */
379 data [1] = value >> 8;
383 emit_int32 (MonoAotCompile *acfg, int value)
386 emit_ensure_buffer (acfg->cur_section, 4);
387 data = acfg->cur_section->data + acfg->cur_section->cur_offset;
388 acfg->cur_section->cur_offset += 4;
389 /* FIXME: little endian */
391 data [1] = value >> 8;
392 data [2] = value >> 16;
393 data [3] = value >> 24;
397 emit_symbol_diff (MonoAotCompile *acfg, const char *end, const char* start, int offset)
400 reloc = g_new0 (BinReloc, 1);
401 reloc->val1 = g_strdup (end);
402 if (strcmp (start, ".") == 0) {
403 reloc->val2_section = acfg->cur_section;
404 reloc->val2_offset = acfg->cur_section->cur_offset;
406 reloc->val2 = g_strdup (start);
408 reloc->offset = offset;
409 reloc->section = acfg->cur_section;
410 reloc->section_offset = acfg->cur_section->cur_offset;
411 reloc->next = acfg->relocations;
412 acfg->relocations = reloc;
413 acfg->cur_section->cur_offset += 4;
414 /*if (strcmp (reloc->section->name, ".data") == 0) {
416 g_print ("reloc: %s - %s + %d at %d\n", end, start, offset, acfg->cur_section->cur_offset - 4);
421 emit_zero_bytes (MonoAotCompile *acfg, int num)
423 emit_ensure_buffer (acfg->cur_section, num);
424 acfg->cur_section->cur_offset += num;
427 #ifdef USE_ELF_WRITER
462 DYN_RELCOUNT = 0x6ffffffa
465 static const char* section_names [] = {
481 static const guint8 section_type [] = {
486 static const guint8 section_link [] = {
487 0, 2, 3, 0, 2, 0, 3, 0, 0, 0, 0, 12, 0
490 static const guint8 section_esize [] = {
491 0, 4, 16, 0, 8, 0, 8, 4, 0, 0, 0, 16, 0
494 static const guint8 section_flags [] = {
495 0, 2, 2, 2, 2, 6, 3, 3, 3, 3, 0, 0, 0
498 static const guint16 section_align [] = {
499 0, 4, 4, 1, 4, 4096, 4, 4, 8, 8, 1, 4, 1
519 struct ElfSectHeader {
532 #if SIZEOF_VOID_P == 4
534 struct ElfProgHeader {
566 struct ElfProgHeader {
610 str_table_add (ElfStrTable *table, const char* value)
614 table->data = g_string_new_len ("", 1);
615 table->hash = g_hash_table_new (g_str_hash, g_str_equal);
617 idx = GPOINTER_TO_UINT (g_hash_table_lookup (table->hash, value));
620 idx = table->data->len;
621 g_string_append (table->data, value);
622 g_string_append_c (table->data, 0);
623 g_hash_table_insert (table->hash, (void*)value, GUINT_TO_POINTER (idx));
628 append_subsection (MonoAotCompile *acfg, struct ElfSectHeader *sheaders, BinSection *sect, BinSection *add)
630 int offset = sect->cur_offset;
631 /*offset += (sheaders [sect->shidx].sh_addralign - 1);
632 offset &= ~(sheaders [sect->shidx].sh_addralign - 1);*/
635 emit_ensure_buffer (sect, offset);
636 g_print ("section %s aligned to %d from %d\n", sect->name, offset, sect->cur_offset);
637 sect->cur_offset = offset;
639 emit_ensure_buffer (sect, add->cur_offset);
640 memcpy (sect->data + sect->cur_offset, add->data, add->cur_offset);
642 sect->cur_offset += add->cur_offset;
643 add->cur_offset = offset; /* it becomes the offset in the parent section */
644 g_print ("subsection %d of %s added at offset %d (align: %d)\n", add->subsection, sect->name, add->cur_offset, sheaders [sect->shidx].sh_addralign);
649 /* merge the subsections */
651 collect_sections (MonoAotCompile *acfg, struct ElfSectHeader *sheaders, BinSection **out, int num)
653 int i, j, maxs, num_sections;
658 for (sect = acfg->sections; sect; sect = sect->next) {
659 if (sect->subsection == 0) {
660 out [num_sections++] = sect;
661 g_assert (num_sections < num);
662 if (strcmp (sect->name, ".text") == 0) {
663 sect->shidx = SECT_TEXT;
664 } else if (strcmp (sect->name, ".data") == 0) {
665 sect->shidx = SECT_DATA;
666 } else if (strcmp (sect->name, ".bss") == 0) {
667 sect->shidx = SECT_BSS;
670 maxs = MAX (maxs, sect->subsection);
672 for (i = 0; i < num_sections; i++) {
673 for (j = 1; j <= maxs; ++j) {
674 for (sect = acfg->sections; sect; sect = sect->next) {
675 if (sect->subsection == j && strcmp (out [i]->name, sect->name) == 0) {
676 append_subsection (acfg, sheaders, out [i], sect);
685 elf_hash (const unsigned char *name)
687 unsigned long h = 0, g;
689 h = (h << 4) + *name++;
690 if ((g = h & 0xf0000000))
697 #define NUM_BUCKETS 17
700 build_hash (MonoAotCompile *acfg, int num_sections, ElfStrTable *dynstr)
703 int num_symbols = 1 + num_sections + 3;
706 for (symbol = acfg->symbols; symbol; symbol = symbol->next) {
707 if (!symbol->is_global)
710 str_table_add (dynstr, symbol->name);
711 /*g_print ("adding sym: %s\n", symbol->name);*/
713 str_table_add (dynstr, "__bss_start");
714 str_table_add (dynstr, "_edata");
715 str_table_add (dynstr, "_end");
717 data = g_new0 (int, num_symbols + 2 + NUM_BUCKETS);
718 data [0] = NUM_BUCKETS;
719 data [1] = num_symbols;
725 get_label_addr (MonoAotCompile *acfg, const char *name)
732 lab = g_hash_table_lookup (acfg->labels, name);
733 section = lab->section;
734 offset = lab->offset;
735 if (section->parent) {
736 value = section->parent->file_offset + section->cur_offset + offset;
738 value = section->file_offset + offset;
744 collect_syms (MonoAotCompile *acfg, int *hash, ElfStrTable *strtab, struct ElfSectHeader *sheaders, int *num_syms)
755 symbols = g_new0 (ElfSymbol, hash [1]);
757 symbols = g_new0 (ElfSymbol, *num_syms + SECT_NUM + 10); /* FIXME */
759 /* the first symbol is undef, all zeroes */
763 for (j = 1; j < SECT_NUM; ++j) {
764 symbols [i].st_info = SYM_LOCAL | SYM_SECTION;
765 symbols [i].st_shndx = j;
766 symbols [i].st_value = sheaders [j].sh_addr;
770 for (section = acfg->sections; section; section = section->next) {
773 symbols [i].st_info = SYM_LOCAL | SYM_SECTION;
774 if (strcmp (section->name, ".text") == 0) {
775 symbols [i].st_shndx = SECT_TEXT;
776 section->shidx = SECT_TEXT;
777 section->file_offset = 4096;
778 symbols [i].st_value = section->file_offset;
779 } else if (strcmp (section->name, ".data") == 0) {
780 symbols [i].st_shndx = SECT_DATA;
781 section->shidx = SECT_DATA;
782 section->file_offset = 4096 + 28; /* FIXME */
783 symbols [i].st_value = section->file_offset;
784 } else if (strcmp (section->name, ".bss") == 0) {
785 symbols [i].st_shndx = SECT_BSS;
786 section->shidx = SECT_BSS;
787 section->file_offset = 4096 + 28 + 8; /* FIXME */
788 symbols [i].st_value = section->file_offset;
793 for (symbol = acfg->symbols; symbol; symbol = symbol->next) {
796 if (!symbol->is_global)
798 symbols [i].st_info = (symbol->is_function? SYM_FUNC : SYM_OBJECT) | SYM_GLOBAL;
799 symbols [i].st_name = str_table_add (strtab, symbol->name);
800 /*g_print ("sym name %s tabled to %d\n", symbol->name, symbols [i].st_name);*/
801 section = symbol->section;
802 symbols [i].st_shndx = section->parent? section->parent->shidx: section->shidx;
803 lab = g_hash_table_lookup (acfg->labels, symbol->name);
804 offset = lab->offset;
805 if (section->parent) {
806 symbols [i].st_value = section->parent->file_offset + section->cur_offset + offset;
808 symbols [i].st_value = section->file_offset + offset;
812 /* add special symbols */
813 symbols [i].st_name = str_table_add (strtab, "__bss_start");
814 symbols [i].st_shndx = 0xfff1;
815 symbols [i].st_info = SYM_GLOBAL;
817 symbols [i].st_name = str_table_add (strtab, "_edata");
818 symbols [i].st_shndx = 0xfff1;
819 symbols [i].st_info = SYM_GLOBAL;
821 symbols [i].st_name = str_table_add (strtab, "_end");
822 symbols [i].st_shndx = 0xfff1;
823 symbols [i].st_info = SYM_GLOBAL;
829 /* add to hash table */
832 chain = hash + 2 + hash [0];
833 for (i = 0; i < hash [1]; ++i) {
835 /*g_print ("checking %d '%s' (sym %d)\n", symbols [i].st_name, strtab->data->str + symbols [i].st_name, i);*/
836 if (!symbols [i].st_name)
838 hashc = elf_hash ((guint8*)strtab->data->str + symbols [i].st_name);
839 slot = hashc % hash [0];
840 /*g_print ("hashing '%s' at slot %d (sym %d)\n", strtab->data->str + symbols [i].st_name, slot, i);*/
842 chain [i] = bucket [slot];
853 reloc_symbols (MonoAotCompile *acfg, ElfSymbol *symbols, struct ElfSectHeader *sheaders, ElfStrTable *strtab, gboolean dynamic)
861 for (section = acfg->sections; section; section = section->next) {
864 symbols [i].st_value = sheaders [section->shidx].sh_addr;
868 for (i = 1; i < SECT_NUM; ++i) {
869 symbols [i].st_value = sheaders [i].sh_addr;
872 for (symbol = acfg->symbols; symbol; symbol = symbol->next) {
875 if (dynamic && !symbol->is_global)
877 section = symbol->section;
878 lab = g_hash_table_lookup (acfg->labels, symbol->name);
879 offset = lab->offset;
880 if (section->parent) {
881 symbols [i].st_value = sheaders [section->parent->shidx].sh_addr + section->cur_offset + offset;
883 symbols [i].st_value = sheaders [section->shidx].sh_addr + offset;
888 symbols [i].st_value = sheaders [SECT_BSS].sh_addr;
891 symbols [i].st_value = sheaders [SECT_DATA].sh_addr + sheaders [SECT_DATA].sh_size;
894 symbols [i].st_value = sheaders [SECT_BSS].sh_addr + sheaders [SECT_BSS].sh_size;
899 resolve_relocations (MonoAotCompile *acfg)
903 gsize end_val, start_val;
908 rr = g_new0 (ElfReloc, acfg->num_relocs);
911 for (reloc = acfg->relocations; reloc; reloc = reloc->next) {
912 end_val = get_label_addr (acfg, reloc->val1);
914 start_val = get_label_addr (acfg, reloc->val2);
915 } else if (reloc->val2_section) {
916 start_val = reloc->val2_offset;
917 if (reloc->val2_section->parent)
918 start_val += reloc->val2_section->parent->file_offset + reloc->val2_section->cur_offset;
920 start_val += reloc->val2_section->file_offset;
924 end_val = end_val - start_val + reloc->offset;
925 if (reloc->section->parent) {
926 data = reloc->section->parent->data;
927 data += reloc->section->cur_offset;
928 data += reloc->section_offset;
929 vaddr = reloc->section->parent->file_offset;
930 vaddr += reloc->section->cur_offset;
931 vaddr += reloc->section_offset;
933 data = reloc->section->data;
934 data += reloc->section_offset;
935 vaddr = reloc->section->file_offset;
936 vaddr += reloc->section_offset;
938 /* FIXME: little endian */
940 data [1] = end_val >> 8;
941 data [2] = end_val >> 16;
942 data [3] = end_val >> 24;
943 if (start_val == 0) {
945 rr [i].value = 8; /* FIXME: 386_RELATIVE */
947 g_assert (i <= acfg->num_relocs);
954 emit_writeout (MonoAotCompile *acfg)
956 char *outfile_name, *tmp_outfile_name;
958 struct ElfHeader header;
959 struct ElfProgHeader progh [3];
960 struct ElfSectHeader secth [SECT_NUM];
962 ElfStrTable str_table = {NULL, NULL};
963 ElfStrTable sh_str_table = {NULL, NULL};
964 ElfStrTable dyn_str_table = {NULL, NULL};
965 BinSection* sections [6];
966 BinSection *text_section = NULL, *data_section = NULL, *bss_section = NULL;
969 ElfDynamic dynamic [14];
971 int i, num_sections, file_offset, virt_offset, size, num_symtab;
974 if (acfg->aot_opts.outfile)
975 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
977 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
979 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
981 unlink (tmp_outfile_name);
982 file = fopen (tmp_outfile_name, "w");
985 /* Section headers */
986 memset (§h, 0, sizeof (secth));
987 memset (&dynamic, 0, sizeof (dynamic));
988 memset (&header, 0, sizeof (header));
990 for (i = 1; i < SECT_NUM; ++i) {
991 secth [i].sh_name = str_table_add (&sh_str_table, section_names [i]);
992 secth [i].sh_type = section_type [i];
993 secth [i].sh_link = section_link [i];
994 secth [i].sh_addralign = section_align [i];
995 secth [i].sh_flags = section_flags [i];
996 secth [i].sh_entsize = section_esize [i];
998 secth [SECT_DYNSYM].sh_info = 4;
999 secth [SECT_SYMTAB].sh_info = 20;
1001 num_sections = collect_sections (acfg, secth, sections, 6);
1002 hash = build_hash (acfg, num_sections, &dyn_str_table);
1003 num_symtab = hash [1]; /* FIXME */
1004 g_print ("num_sections: %d\n", num_sections);
1005 g_print ("dynsym: %d, dynstr size: %d\n", hash [1], dyn_str_table.data->len);
1006 for (i = 0; i < num_sections; ++i) {
1007 g_print ("section %s, size: %d, %x\n", sections [i]->name, sections [i]->cur_offset, sections [i]->cur_offset);
1010 /* at this point we know where in the file the first segment sections go */
1011 dynsym = collect_syms (acfg, hash, &dyn_str_table, NULL, NULL);
1012 num_local_syms = hash [1];
1013 symtab = collect_syms (acfg, NULL, &str_table, secth, &num_local_syms);
1015 for (i = 0; i < num_sections; ++i) {
1016 if (sections [i]->shidx == SECT_TEXT) {
1017 text_section = sections [i];
1018 } else if (sections [i]->shidx == SECT_DATA) {
1019 data_section = sections [i];
1020 } else if (sections [i]->shidx == SECT_BSS) {
1021 bss_section = sections [i];
1025 file_offset = virt_offset = sizeof (header) + sizeof (progh);
1026 secth [SECT_HASH].sh_addr = secth [SECT_HASH].sh_offset = file_offset;
1027 size = sizeof (int) * (2 + hash [0] + hash [1]);
1028 virt_offset = (file_offset += size);
1029 secth [SECT_HASH].sh_size = size;
1030 secth [SECT_DYNSYM].sh_addr = secth [SECT_DYNSYM].sh_offset = file_offset;
1031 size = sizeof (ElfSymbol) * hash [1];
1032 virt_offset = (file_offset += size);
1033 secth [SECT_DYNSYM].sh_size = size;
1034 secth [SECT_DYNSTR].sh_addr = secth [SECT_DYNSTR].sh_offset = file_offset;
1035 size = dyn_str_table.data->len;
1036 virt_offset = (file_offset += size);
1037 secth [SECT_DYNSTR].sh_size = size;
1039 file_offset &= ~(4-1);
1040 secth [SECT_REL_DYN].sh_addr = secth [SECT_REL_DYN].sh_offset = file_offset;
1041 size = sizeof (ElfReloc) * acfg->num_relocs;
1042 secth [SECT_REL_DYN].sh_size = size;
1043 virt_offset = (file_offset += size);
1044 secth [SECT_REL_DYN].sh_size = size;
1045 file_offset += 4096-1;
1046 file_offset &= ~(4096-1);
1047 virt_offset = file_offset;
1048 secth [SECT_TEXT].sh_addr = secth [SECT_TEXT].sh_offset = file_offset;
1049 size = text_section->cur_offset;
1050 secth [SECT_TEXT].sh_size = size;
1051 file_offset += size;
1053 file_offset &= ~(4-1);
1054 virt_offset = file_offset;
1055 /* .dynamic, .got.plt, .data, .bss here */
1056 secth [SECT_DYNAMIC].sh_addr = virt_offset;
1057 secth [SECT_DYNAMIC].sh_offset = file_offset;
1058 size = sizeof (dynamic);
1059 secth [SECT_DYNAMIC].sh_size = size;
1062 file_offset += size;
1063 virt_offset += size;
1064 secth [SECT_GOT_PLT].sh_addr = virt_offset;
1065 secth [SECT_GOT_PLT].sh_offset = file_offset;
1067 secth [SECT_GOT_PLT].sh_size = size;
1070 file_offset += size;
1071 virt_offset += size;
1072 secth [SECT_DATA].sh_addr = virt_offset;
1073 secth [SECT_DATA].sh_offset = file_offset;
1074 size = data_section->cur_offset;
1075 secth [SECT_DATA].sh_size = size;
1078 file_offset += size;
1079 virt_offset += size;
1080 secth [SECT_BSS].sh_addr = virt_offset;
1081 secth [SECT_BSS].sh_offset = file_offset;
1082 size = bss_section->cur_offset;
1083 secth [SECT_BSS].sh_size = size;
1085 /* virtual doesn't matter anymore */
1086 secth [SECT_SHSTRTAB].sh_offset = file_offset;
1087 size = sh_str_table.data->len;
1088 secth [SECT_SHSTRTAB].sh_size = size;
1091 file_offset += size;
1092 secth [SECT_SYMTAB].sh_offset = file_offset;
1093 size = sizeof (ElfSymbol) * num_local_syms;
1094 secth [SECT_SYMTAB].sh_size = size;
1095 file_offset += size;
1096 secth [SECT_STRTAB].sh_offset = file_offset;
1097 size = str_table.data->len;
1098 secth [SECT_STRTAB].sh_size = size;
1099 file_offset += size;
1101 file_offset &= ~(4-1);
1103 text_section->file_offset = secth [SECT_TEXT].sh_offset;
1104 data_section->file_offset = secth [SECT_DATA].sh_offset;
1105 bss_section->file_offset = secth [SECT_BSS].sh_offset;
1107 header.e_ident [0] = 0x7f; header.e_ident [1] = 'E';
1108 header.e_ident [2] = 'L'; header.e_ident [3] = 'F';
1109 header.e_ident [4] = SIZEOF_VOID_P == 4? 1: 2;
1110 header.e_ident [5] = 1; /* FIXME: little endian, bigendian is 2 */
1111 header.e_ident [6] = 1; /* version */
1112 header.e_ident [7] = 0; /* FIXME: */
1113 header.e_ident [8] = 0; /* FIXME: */
1114 for (i = 9; i < 16; ++i)
1115 header.e_ident [i] = 0;
1117 header.e_type = 3; /* shared library */
1118 header.e_machine = 3; /* FIXME: 386 */
1119 header.e_version = 1; /* FIXME: */
1121 header.e_phoff = sizeof (header);
1122 header.e_ehsize = sizeof (header);
1123 header.e_phentsize = sizeof (struct ElfProgHeader);
1125 header.e_entry = secth [SECT_TEXT].sh_addr;
1126 header.e_shstrndx = 10;
1127 header.e_shentsize = sizeof (struct ElfSectHeader);
1128 header.e_shnum = SECT_NUM;
1129 header.e_shoff = file_offset;
1133 dynamic [i].d_tag = DYN_HASH;
1134 dynamic [i].d_val = secth [SECT_HASH].sh_offset;
1136 dynamic [i].d_tag = DYN_STRTAB;
1137 dynamic [i].d_val = secth [SECT_DYNSTR].sh_offset;
1139 dynamic [i].d_tag = DYN_SYMTAB;
1140 dynamic [i].d_val = secth [SECT_DYNSYM].sh_offset;
1142 dynamic [i].d_tag = DYN_STRSZ;
1143 dynamic [i].d_val = dyn_str_table.data->len;
1145 dynamic [i].d_tag = DYN_SYMENT;
1146 dynamic [i].d_val = sizeof (ElfSymbol);
1148 dynamic [i].d_tag = DYN_REL;
1149 dynamic [i].d_val = secth [SECT_REL_DYN].sh_offset;
1151 dynamic [i].d_tag = DYN_RELSZ;
1152 dynamic [i].d_val = secth [SECT_REL_DYN].sh_size;
1154 dynamic [i].d_tag = DYN_RELENT;
1155 dynamic [i].d_val = sizeof (ElfReloc);
1157 dynamic [i].d_tag = DYN_RELCOUNT;
1158 dynamic [i].d_val = acfg->num_relocs;
1161 /* Program header */
1162 memset (&progh, 0, sizeof (progh));
1163 progh [0].p_type = 1; /* LOAD */
1164 progh [0].p_filesz = progh [0].p_memsz = secth [SECT_DYNAMIC].sh_offset;
1165 progh [0].p_align = 4096;
1166 progh [0].p_flags = 5;
1168 progh [1].p_type = 1;
1169 progh [1].p_offset = secth [SECT_DYNAMIC].sh_offset;
1170 progh [1].p_vaddr = progh [1].p_paddr = secth [SECT_DYNAMIC].sh_addr;
1171 progh [1].p_filesz = secth [SECT_BSS].sh_offset - secth [SECT_DYNAMIC].sh_offset;
1172 progh [1].p_memsz = secth [SECT_BSS].sh_addr + secth [SECT_BSS].sh_size - secth [SECT_DYNAMIC].sh_addr;
1173 progh [1].p_align = 4096;
1174 progh [1].p_flags = 6;
1176 progh [2].p_type = 2; /* DYNAMIC */
1177 progh [2].p_offset = secth [SECT_DYNAMIC].sh_offset;
1178 progh [2].p_vaddr = progh [2].p_paddr = secth [SECT_DYNAMIC].sh_addr;
1179 progh [2].p_filesz = progh [2].p_memsz = secth [SECT_DYNAMIC].sh_size;
1180 progh [2].p_align = 4;
1181 progh [2].p_flags = 6;
1183 reloc_symbols (acfg, dynsym, secth, &dyn_str_table, TRUE);
1184 reloc_symbols (acfg, symtab, secth, &str_table, FALSE);
1185 relocs = resolve_relocations (acfg);
1187 fwrite (&header, sizeof (header), 1, file);
1188 fwrite (&progh, sizeof (progh), 1, file);
1189 fwrite (hash, sizeof (int) * (hash [0] + hash [1] + 2), 1, file);
1190 fwrite (dynsym, sizeof (ElfSymbol) * hash [1], 1, file);
1191 fwrite (dyn_str_table.data->str, dyn_str_table.data->len, 1, file);
1193 fseek (file, secth [SECT_REL_DYN].sh_offset, SEEK_SET);
1194 fwrite (relocs, sizeof (ElfReloc), acfg->num_relocs, file);
1196 fseek (file, secth [SECT_TEXT].sh_offset, SEEK_SET);
1197 /* write .text, .data, .bss sections */
1198 fwrite (text_section->data, text_section->cur_offset, 1, file);
1201 fwrite (dynamic, sizeof (dynamic), 1, file);
1203 size = secth [SECT_DYNAMIC].sh_addr;
1204 fwrite (&size, sizeof (size), 1, file);
1205 fseek (file, secth [SECT_DATA].sh_offset, SEEK_SET);
1206 fwrite (data_section->data, data_section->cur_offset, 1, file);
1208 fseek (file, secth [SECT_SHSTRTAB].sh_offset, SEEK_SET);
1209 fwrite (sh_str_table.data->str, sh_str_table.data->len, 1, file);
1210 fseek (file, secth [SECT_SYMTAB].sh_offset, SEEK_SET);
1211 fwrite (symtab, sizeof (ElfSymbol) * num_local_syms, 1, file);
1212 fseek (file, secth [SECT_STRTAB].sh_offset, SEEK_SET);
1213 fwrite (str_table.data->str, str_table.data->len, 1, file);
1214 /*g_print ("file_offset %d vs %d\n", file_offset, ftell (file));*/
1215 /*g_assert (file_offset >= ftell (file));*/
1216 fseek (file, file_offset, SEEK_SET);
1217 fwrite (§h, sizeof (secth), 1, file);
1219 rename (tmp_outfile_name, outfile_name);
1221 g_free (tmp_outfile_name);
1222 g_free (outfile_name);
1225 #endif /* USE_ELF_WRITER */
1230 emit_start (MonoAotCompile *acfg)
1232 int i = g_file_open_tmp ("mono_aot_XXXXXX", &acfg->tmpfname, NULL);
1233 acfg->fp = fdopen (i, "w+");
1234 g_assert (acfg->fp);
1238 emit_unset_mode (MonoAotCompile *acfg)
1240 if (acfg->mode == EMIT_NONE)
1242 fprintf (acfg->fp, "\n");
1243 acfg->mode = EMIT_NONE;
1247 emit_section_change (MonoAotCompile *acfg, const char *section_name, int subsection_index)
1249 emit_unset_mode (acfg);
1250 #if defined(PLATFORM_WIN32)
1251 fprintf (acfg->fp, ".section %s\n", section_name);
1252 #elif defined(sparc)
1253 /* For solaris as, GNU as should accept the same */
1254 fprintf (acfg->fp, ".section \"%s\"\n", section_name);
1255 #elif defined(__ppc__) && defined(__MACH__)
1256 /* This needs to be made more precise on mach. */
1257 fprintf (acfg->fp, "%s\n", subsection_index == 0 ? ".text" : ".data");
1259 fprintf (acfg->fp, "%s %d\n", section_name, subsection_index);
1264 emit_symbol_type (MonoAotCompile *acfg, const char *name, gboolean func)
1273 emit_unset_mode (acfg);
1275 fprintf (acfg->fp, "\t.type %s,#%s\n", name, stype);
1276 #elif defined(PLATFORM_WIN32)
1278 #elif !(defined(__ppc__) && defined(__MACH__))
1279 fprintf (acfg->fp, "\t.type %s,@%s\n", name, stype);
1280 #elif defined(__x86_64__) || defined(__i386__)
1281 fprintf (acfg->fp, "\t.type %s,@%s\n", name, stype);
1286 emit_global (MonoAotCompile *acfg, const char *name, gboolean func)
1288 emit_unset_mode (acfg);
1289 #if (defined(__ppc__) && defined(__MACH__)) || defined(PLATFORM_WIN32)
1290 // mach-o always uses a '_' prefix.
1291 fprintf (acfg->fp, "\t.globl _%s\n", name);
1293 fprintf (acfg->fp, "\t.globl %s\n", name);
1296 emit_symbol_type (acfg, name, func);
1300 emit_label (MonoAotCompile *acfg, const char *name)
1302 emit_unset_mode (acfg);
1303 #if (defined(__ppc__) && defined(__MACH__)) || defined(PLATFORM_WIN32)
1304 // mach-o always uses a '_' prefix.
1305 fprintf (acfg->fp, "_%s:\n", name);
1307 fprintf (acfg->fp, "%s:\n", name);
1310 #if defined(PLATFORM_WIN32)
1311 /* Emit a normal label too */
1312 fprintf (acfg->fp, "%s:\n", name);
1317 emit_string (MonoAotCompile *acfg, const char *value)
1319 emit_unset_mode (acfg);
1320 fprintf (acfg->fp, "\t%s \"%s\"\n", AS_STRING_DIRECTIVE, value);
1324 emit_line (MonoAotCompile *acfg)
1326 emit_unset_mode (acfg);
1327 fprintf (acfg->fp, "\n");
1331 emit_string_symbol (MonoAotCompile *acfg, const char *name, const char *value)
1333 emit_unset_mode (acfg);
1334 emit_section_change (acfg, ".text", 1);
1335 emit_global (acfg, name, FALSE);
1336 emit_label (acfg, name);
1337 emit_string (acfg, value);
1341 emit_alignment (MonoAotCompile *acfg, int size)
1343 emit_unset_mode (acfg);
1344 #if defined(__ppc__) && defined(__MACH__)
1345 // the mach-o assembler specifies alignments as powers of 2.
1346 fprintf (acfg->fp, "\t.align %d\t; ilog2\n", ilog2(size));
1347 #elif defined(__powerpc__)
1348 /* ignore on linux/ppc */
1350 fprintf (acfg->fp, "\t.align %d\n", size);
1355 emit_pointer (MonoAotCompile *acfg, const char *target)
1357 emit_unset_mode (acfg);
1358 emit_alignment (acfg, sizeof (gpointer));
1359 #if defined(__x86_64__)
1360 fprintf (acfg->fp, "\t.quad %s\n", target);
1361 #elif defined(sparc) && SIZEOF_VOID_P == 8
1362 fprintf (acfg->fp, "\t.xword %s\n", target);
1364 fprintf (acfg->fp, "\t.long %s\n", target);
1369 emit_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
1372 if (acfg->mode != EMIT_BYTE) {
1373 acfg->mode = EMIT_BYTE;
1374 acfg->col_count = 0;
1376 for (i = 0; i < size; ++i, ++acfg->col_count) {
1377 if ((acfg->col_count % 32) == 0)
1378 fprintf (acfg->fp, "\n\t.byte ");
1380 fprintf (acfg->fp, ", ");
1381 fprintf (acfg->fp, "0x%x", buf [i]);
1386 emit_int16 (MonoAotCompile *acfg, int value)
1388 if (acfg->mode != EMIT_WORD) {
1389 acfg->mode = EMIT_WORD;
1390 acfg->col_count = 0;
1392 if ((acfg->col_count++ % 8) == 0)
1393 fprintf (acfg->fp, "\n\t.word ");
1395 fprintf (acfg->fp, ", ");
1396 fprintf (acfg->fp, "%d", value);
1400 emit_int32 (MonoAotCompile *acfg, int value)
1402 if (acfg->mode != EMIT_LONG) {
1403 acfg->mode = EMIT_LONG;
1404 acfg->col_count = 0;
1406 if ((acfg->col_count++ % 8) == 0)
1407 fprintf (acfg->fp, "\n\t.long ");
1409 fprintf (acfg->fp, ", ");
1410 fprintf (acfg->fp, "%d", value);
1414 emit_symbol_diff (MonoAotCompile *acfg, const char *end, const char* start, int offset)
1416 if (acfg->mode != EMIT_LONG) {
1417 acfg->mode = EMIT_LONG;
1418 acfg->col_count = 0;
1420 if ((acfg->col_count++ % 8) == 0)
1421 fprintf (acfg->fp, "\n\t.long ");
1423 fprintf (acfg->fp, ", ");
1425 fprintf (acfg->fp, "%s - %s %c %d", end, start, offset < 0? ' ': '+', offset);
1427 fprintf (acfg->fp, "%s - %s", end, start);
1431 emit_zero_bytes (MonoAotCompile *acfg, int num)
1433 emit_unset_mode (acfg);
1434 fprintf (acfg->fp, "\t.skip %d\n", num);
1438 emit_writeout (MonoAotCompile *acfg)
1440 char *command, *objfile;
1441 char *outfile_name, *tmp_outfile_name;
1445 #if defined(__x86_64__)
1446 #define AS_OPTIONS "--64"
1447 #elif defined(sparc) && SIZEOF_VOID_P == 8
1448 #define AS_OPTIONS "-xarch=v9"
1450 #define AS_OPTIONS ""
1452 command = g_strdup_printf ("as %s %s -o %s.o", AS_OPTIONS, acfg->tmpfname, acfg->tmpfname);
1453 printf ("Executing the native assembler: %s\n", command);
1454 if (system (command) != 0) {
1461 if (acfg->aot_opts.outfile)
1462 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
1464 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
1466 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
1469 command = g_strdup_printf ("ld -shared -G -o %s %s.o", outfile_name, acfg->tmpfname);
1470 #elif defined(__ppc__) && defined(__MACH__)
1471 command = g_strdup_printf ("gcc -dynamiclib -o %s %s.o", outfile_name, acfg->tmpfname);
1472 #elif defined(PLATFORM_WIN32)
1473 command = g_strdup_printf ("gcc -shared --dll -mno-cygwin -o %s %s.o", outfile_name, acfg->tmpfname);
1475 command = g_strdup_printf ("ld -shared -o %s %s.o", outfile_name, acfg->tmpfname);
1477 printf ("Executing the native linker: %s\n", command);
1478 if (system (command) != 0) {
1479 g_free (tmp_outfile_name);
1480 g_free (outfile_name);
1486 objfile = g_strdup_printf ("%s.o", acfg->tmpfname);
1489 /*com = g_strdup_printf ("strip --strip-unneeded %s%s", acfg->image->name, SHARED_EXT);
1490 printf ("Stripping the binary: %s\n", com);
1494 rename (tmp_outfile_name, outfile_name);
1496 g_free (tmp_outfile_name);
1497 g_free (outfile_name);
1499 if (acfg->aot_opts.save_temps)
1500 printf ("Retained input file.\n");
1502 unlink (acfg->tmpfname);
1506 #endif /* ASM_WRITER */
1509 emit_byte (MonoAotCompile *acfg, guint8 val)
1511 emit_bytes (acfg, &val, 1);
1515 mono_get_field_token (MonoClassField *field)
1517 MonoClass *klass = field->parent;
1520 for (i = 0; i < klass->field.count; ++i) {
1521 if (field == &klass->fields [i])
1522 return MONO_TOKEN_FIELD_DEF | (klass->field.first + 1 + i);
1525 g_assert_not_reached ();
1530 encode_value (gint32 value, guint8 *buf, guint8 **endbuf)
1534 //printf ("ENCODE: %d 0x%x.\n", value, value);
1537 * Same encoding as the one used in the metadata, extended to handle values
1538 * greater than 0x1fffffff.
1540 if ((value >= 0) && (value <= 127))
1542 else if ((value >= 0) && (value <= 16383)) {
1543 p [0] = 0x80 | (value >> 8);
1544 p [1] = value & 0xff;
1546 } else if ((value >= 0) && (value <= 0x1fffffff)) {
1547 p [0] = (value >> 24) | 0xc0;
1548 p [1] = (value >> 16) & 0xff;
1549 p [2] = (value >> 8) & 0xff;
1550 p [3] = value & 0xff;
1555 p [1] = (value >> 24) & 0xff;
1556 p [2] = (value >> 16) & 0xff;
1557 p [3] = (value >> 8) & 0xff;
1558 p [4] = value & 0xff;
1566 get_image_index (MonoAotCompile *cfg, MonoImage *image)
1570 index = GPOINTER_TO_UINT (g_hash_table_lookup (cfg->image_hash, image));
1574 index = g_hash_table_size (cfg->image_hash);
1575 g_hash_table_insert (cfg->image_hash, image, GUINT_TO_POINTER (index + 1));
1576 g_ptr_array_add (cfg->image_table, image);
1582 encode_klass_info (MonoAotCompile *cfg, MonoClass *klass, guint8 *buf, guint8 **endbuf)
1584 if (!klass->type_token) {
1586 g_assert (klass->rank > 0);
1587 g_assert (klass->element_class->type_token);
1588 encode_value (MONO_TOKEN_TYPE_DEF, buf, &buf);
1589 encode_value (get_image_index (cfg, klass->image), buf, &buf);
1590 g_assert (mono_metadata_token_code (klass->element_class->type_token) == MONO_TOKEN_TYPE_DEF);
1591 encode_value (klass->element_class->type_token - MONO_TOKEN_TYPE_DEF, buf, &buf);
1592 encode_value (klass->rank, buf, &buf);
1595 g_assert (mono_metadata_token_code (klass->type_token) == MONO_TOKEN_TYPE_DEF);
1596 encode_value (klass->type_token - MONO_TOKEN_TYPE_DEF, buf, &buf);
1597 encode_value (get_image_index (cfg, klass->image), buf, &buf);
1603 encode_field_info (MonoAotCompile *cfg, MonoClassField *field, guint8 *buf, guint8 **endbuf)
1605 guint32 token = mono_get_field_token (field);
1607 encode_klass_info (cfg, field->parent, buf, &buf);
1608 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_FIELD_DEF);
1609 encode_value (token - MONO_TOKEN_FIELD_DEF, buf, &buf);
1614 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf)
1616 guint32 image_index = get_image_index (acfg, method->klass->image);
1617 guint32 token = method->token;
1618 g_assert (image_index < 256);
1619 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
1621 encode_value ((image_index << 24) + (mono_metadata_token_index (token)), buf, &buf);
1626 compare_patches (gconstpointer a, gconstpointer b)
1630 i = (*(MonoJumpInfo**)a)->ip.i;
1631 j = (*(MonoJumpInfo**)b)->ip.i;
1643 get_plt_index (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
1648 switch (patch_info->type) {
1649 case MONO_PATCH_INFO_METHOD:
1650 case MONO_PATCH_INFO_WRAPPER:
1651 case MONO_PATCH_INFO_INTERNAL_METHOD:
1652 case MONO_PATCH_INFO_CLASS_INIT: {
1653 MonoJumpInfo *new_ji = mono_patch_info_dup_mp (acfg->mempool, patch_info);
1654 gpointer patch_id = NULL;
1656 /* First check for an existing patch */
1657 switch (patch_info->type) {
1658 case MONO_PATCH_INFO_METHOD:
1659 patch_id = patch_info->data.method;
1661 case MONO_PATCH_INFO_INTERNAL_METHOD:
1662 patch_id = (gpointer)patch_info->data.name;
1664 case MONO_PATCH_INFO_CLASS_INIT:
1665 patch_id = patch_info->data.klass;
1667 case MONO_PATCH_INFO_WRAPPER:
1668 /* A bit ugly, but works */
1669 g_assert (patch_info->data.method->wrapper_type < sizeof (MonoMethod));
1670 patch_id = (gpointer)(((guint8*)patch_info->data.method) + patch_info->data.method->wrapper_type);
1673 g_assert_not_reached ();
1677 idx = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_plt_offset, patch_id));
1681 g_hash_table_insert (acfg->patch_to_plt_offset, patch_id, GUINT_TO_POINTER (acfg->plt_offset));
1685 res = acfg->plt_offset;
1686 g_hash_table_insert (acfg->plt_offset_to_patch, GUINT_TO_POINTER (acfg->plt_offset), new_ji);
1687 acfg->plt_offset ++;
1690 /* Nullify the patch */
1691 patch_info->type = MONO_PATCH_INFO_NONE;
1703 * Returns the offset of the GOT slot where the runtime object resulting from resolving
1704 * JI could be found if it exists, otherwise allocates a new one.
1707 get_got_offset (MonoAotCompile *acfg, MonoJumpInfo *ji)
1711 got_offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_shared_got_offset, ji));
1713 return got_offset - 1;
1715 got_offset = acfg->got_offset;
1716 acfg->got_offset ++;
1718 acfg->stats.got_slots ++;
1719 acfg->stats.got_slot_types [ji->type] ++;
1725 get_shared_got_offset (MonoAotCompile *acfg, MonoJumpInfo *ji)
1730 if (!g_hash_table_lookup (acfg->patch_to_shared_got_offset, ji)) {
1731 got_offset = get_got_offset (acfg, ji);
1732 copy = mono_patch_info_dup_mp (acfg->mempool, ji);
1733 g_hash_table_insert (acfg->patch_to_shared_got_offset, copy, GUINT_TO_POINTER (got_offset + 1));
1734 g_ptr_array_add (acfg->shared_patches, copy);
1737 return get_got_offset (acfg, ji);
1741 emit_method_code (MonoAotCompile *acfg, MonoCompile *cfg)
1744 int i, pindex, method_index;
1747 int func_alignment = 16;
1749 MonoJumpInfo *patch_info;
1750 MonoMethodHeader *header;
1754 method = cfg->method;
1755 code = cfg->native_code;
1756 header = mono_method_get_header (method);
1758 method_index = mono_metadata_token_index (method->token);
1760 /* Make the labels local */
1761 symbol = g_strdup_printf (".Lm_%x", method_index);
1763 emit_alignment (acfg, func_alignment);
1764 emit_label (acfg, symbol);
1765 if (acfg->aot_opts.write_symbols)
1766 emit_global (acfg, symbol, TRUE);
1768 if (cfg->verbose_level > 0)
1769 g_print ("Method %s emitted as %s\n", mono_method_full_name (method, TRUE), symbol);
1771 acfg->stats.code_size += cfg->code_len;
1773 /* Collect and sort relocations */
1774 patches = g_ptr_array_new ();
1775 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next)
1776 g_ptr_array_add (patches, patch_info);
1777 g_ptr_array_sort (patches, compare_patches);
1779 acfg->method_got_offsets [method_index] = acfg->got_offset;
1780 for (i = 0; i < cfg->code_len; i++) {
1782 for (pindex = 0; pindex < patches->len; ++pindex) {
1783 patch_info = g_ptr_array_index (patches, pindex);
1784 if (patch_info->ip.i == i)
1788 #ifdef MONO_ARCH_HAVE_PIC_AOT
1791 if (patch_info && (pindex < patches->len)) {
1792 switch (patch_info->type) {
1793 case MONO_PATCH_INFO_LABEL:
1794 case MONO_PATCH_INFO_BB:
1795 case MONO_PATCH_INFO_NONE:
1797 case MONO_PATCH_INFO_GOT_OFFSET: {
1798 guint32 offset = mono_arch_get_patch_offset (code + i);
1799 emit_bytes (acfg, code + i, offset);
1800 emit_symbol_diff (acfg, "got", ".", offset);
1802 i += offset + 4 - 1;
1808 char *direct_call_target;
1810 if (!is_got_patch (patch_info->type))
1814 * If this patch is a call, try emitting a direct call instead of
1815 * through a PLT entry. This is possible if the called method is in
1816 * the same assembly and requires no initialization.
1818 direct_call_target = NULL;
1819 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == cfg->method->klass->image)) {
1820 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
1822 guint32 callee_idx = mono_metadata_token_index (callee_cfg->method->token);
1823 if (!acfg->has_got_slots [callee_idx] && (callee_cfg->method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)) {
1824 //printf ("DIRECT: %s %s\n", mono_method_full_name (cfg->method, TRUE), mono_method_full_name (callee_cfg->method, TRUE));
1825 direct_call_target = g_strdup_printf (".Lm_%x", mono_metadata_token_index (callee_cfg->method->token));
1826 patch_info->type = MONO_PATCH_INFO_NONE;
1827 acfg->stats.direct_calls ++;
1831 acfg->stats.all_calls ++;
1834 if (!direct_call_target) {
1835 plt_index = get_plt_index (acfg, patch_info);
1836 if (plt_index != -1) {
1837 /* This patch has a PLT entry, so we must emit a call to the PLT entry */
1838 direct_call_target = g_strdup_printf (".Lp_%d", plt_index);
1842 if (direct_call_target) {
1843 #if defined(__i386__) || defined(__x86_64__)
1844 g_assert (code [i] == 0xe8);
1845 /* Need to make sure this is exactly 5 bytes long */
1846 emit_byte (acfg, '\xe8');
1847 emit_symbol_diff (acfg, direct_call_target, ".", -4);
1850 g_assert_not_reached ();
1853 got_slot = get_got_offset (acfg, patch_info);
1855 emit_bytes (acfg, code + i, mono_arch_get_patch_offset (code + i));
1857 emit_symbol_diff (acfg, "got", ".", (unsigned int) ((got_slot * sizeof (gpointer)) - 4));
1858 #elif defined(__i386__)
1859 emit_int32 (acfg, (unsigned int) ((got_slot * sizeof (gpointer))));
1862 i += mono_arch_get_patch_offset (code + i) + 4 - 1;
1868 #endif /* MONO_ARCH_HAVE_PIC_AOT */
1871 emit_bytes (acfg, code + i, 1);
1879 * Encode PATCH_INFO into its disk representation. If SHARED is true, encode some types
1880 * of patches by allocating a GOT entry for them, and encode the GOT offset instead.
1883 encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info, guint8 *buf, guint8 **endbuf, gboolean shared)
1887 switch (patch_info->type) {
1888 case MONO_PATCH_INFO_NONE:
1890 case MONO_PATCH_INFO_IMAGE:
1891 encode_value (get_image_index (acfg, patch_info->data.image), p, &p);
1893 case MONO_PATCH_INFO_METHOD_REL:
1894 encode_value ((gint)patch_info->data.offset, p, &p);
1896 case MONO_PATCH_INFO_SWITCH: {
1897 gpointer *table = (gpointer *)patch_info->data.table->table;
1900 encode_value (patch_info->data.table->table_size, p, &p);
1901 for (k = 0; k < patch_info->data.table->table_size; k++)
1902 encode_value ((int)(gssize)table [k], p, &p);
1905 case MONO_PATCH_INFO_METHODCONST:
1906 case MONO_PATCH_INFO_METHOD:
1907 case MONO_PATCH_INFO_METHOD_JUMP:
1908 encode_method_ref (acfg, patch_info->data.method, p, &p);
1910 case MONO_PATCH_INFO_INTERNAL_METHOD: {
1911 guint32 len = strlen (patch_info->data.name);
1913 encode_value (len, p, &p);
1915 memcpy (p, patch_info->data.name, len);
1920 case MONO_PATCH_INFO_LDSTR: {
1921 guint32 image_index = get_image_index (acfg, patch_info->data.token->image);
1922 guint32 token = patch_info->data.token->token;
1923 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_STRING);
1925 * An optimization would be to emit shared code for ldstr
1926 * statements followed by a throw.
1928 encode_value (image_index, p, &p);
1929 encode_value (patch_info->data.token->token - MONO_TOKEN_STRING, p, &p);
1932 case MONO_PATCH_INFO_DECLSEC:
1933 case MONO_PATCH_INFO_LDTOKEN:
1934 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
1936 guint32 offset = get_got_offset (acfg, patch_info);
1937 encode_value (offset, p, &p);
1939 encode_value (get_image_index (acfg, patch_info->data.token->image), p, &p);
1940 encode_value (patch_info->data.token->token, p, &p);
1943 case MONO_PATCH_INFO_EXC_NAME: {
1944 MonoClass *ex_class;
1947 mono_class_from_name (mono_defaults.exception_class->image,
1948 "System", patch_info->data.target);
1949 g_assert (ex_class);
1950 encode_klass_info (acfg, ex_class, p, &p);
1953 case MONO_PATCH_INFO_R4:
1954 encode_value (*((guint32 *)patch_info->data.target), p, &p);
1956 case MONO_PATCH_INFO_R8:
1957 encode_value (*((guint32 *)patch_info->data.target), p, &p);
1958 encode_value (*(((guint32 *)patch_info->data.target) + 1), p, &p);
1960 case MONO_PATCH_INFO_VTABLE:
1961 case MONO_PATCH_INFO_CLASS:
1962 case MONO_PATCH_INFO_IID:
1963 case MONO_PATCH_INFO_ADJUSTED_IID:
1965 guint32 offset = get_got_offset (acfg, patch_info);
1966 encode_value (offset, p, &p);
1968 encode_klass_info (acfg, patch_info->data.klass, p, &p);
1971 case MONO_PATCH_INFO_CLASS_INIT:
1972 encode_klass_info (acfg, patch_info->data.klass, p, &p);
1974 case MONO_PATCH_INFO_FIELD:
1975 case MONO_PATCH_INFO_SFLDA:
1977 guint32 offset = get_got_offset (acfg, patch_info);
1978 encode_value (offset, p, &p);
1980 encode_field_info (acfg, patch_info->data.field, p, &p);
1983 case MONO_PATCH_INFO_WRAPPER: {
1984 encode_value (patch_info->data.method->wrapper_type, p, &p);
1986 switch (patch_info->data.method->wrapper_type) {
1987 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
1989 guint32 image_index;
1992 m = mono_marshal_method_from_wrapper (patch_info->data.method);
1993 image_index = get_image_index (acfg, m->klass->image);
1995 g_assert (image_index < 256);
1996 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
1998 encode_value ((image_index << 24) + (mono_metadata_token_index (token)), p, &p);
2001 case MONO_WRAPPER_PROXY_ISINST:
2002 case MONO_WRAPPER_LDFLD:
2003 case MONO_WRAPPER_LDFLDA:
2004 case MONO_WRAPPER_STFLD:
2005 case MONO_WRAPPER_LDFLD_REMOTE:
2006 case MONO_WRAPPER_STFLD_REMOTE:
2007 case MONO_WRAPPER_ISINST: {
2008 MonoClass *proxy_class = (MonoClass*)mono_marshal_method_from_wrapper (patch_info->data.method);
2009 encode_klass_info (acfg, proxy_class, p, &p);
2012 case MONO_WRAPPER_STELEMREF:
2015 g_assert_not_reached ();
2020 g_warning ("unable to handle jump info %d", patch_info->type);
2021 g_assert_not_reached ();
2028 emit_method_info (MonoAotCompile *acfg, MonoCompile *cfg)
2032 int j, pindex, buf_size, n_patches;
2036 MonoJumpInfo *patch_info;
2037 MonoMethodHeader *header;
2038 guint32 last_offset, method_idx;
2040 guint32 first_got_offset;
2042 method = cfg->method;
2043 code = cfg->native_code;
2044 header = mono_method_get_header (method);
2046 method_idx = mono_metadata_token_index (method->token);
2048 /* Make the labels local */
2049 symbol = g_strdup_printf (".Lm_%x_p", method_idx);
2051 /* Sort relocations */
2052 patches = g_ptr_array_new ();
2053 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next)
2054 g_ptr_array_add (patches, patch_info);
2055 g_ptr_array_sort (patches, compare_patches);
2057 first_got_offset = acfg->method_got_offsets [mono_metadata_token_index (cfg->method->token)];
2059 /**********************/
2060 /* Encode method info */
2061 /**********************/
2063 buf_size = (patches->len < 1000) ? 40960 : 40960 + (patches->len * 64);
2064 p = buf = g_malloc (buf_size);
2066 if (mono_class_get_cctor (method->klass))
2067 encode_klass_info (acfg, method->klass, p, &p);
2069 /* Not needed when loading the method */
2070 encode_value (0, p, &p);
2073 if (cfg->opt & MONO_OPT_SHARED) {
2074 encode_value (g_list_length (cfg->ldstr_list), p, &p);
2075 for (l = cfg->ldstr_list; l; l = l->next) {
2076 encode_value ((long)l->data, p, &p);
2080 /* Used only in shared mode */
2081 g_assert (!cfg->ldstr_list);
2084 for (pindex = 0; pindex < patches->len; ++pindex) {
2085 patch_info = g_ptr_array_index (patches, pindex);
2087 if ((patch_info->type == MONO_PATCH_INFO_LABEL) ||
2088 (patch_info->type == MONO_PATCH_INFO_BB) ||
2089 (patch_info->type == MONO_PATCH_INFO_GOT_OFFSET) ||
2090 (patch_info->type == MONO_PATCH_INFO_NONE)) {
2091 patch_info->type = MONO_PATCH_INFO_NONE;
2096 if ((patch_info->type == MONO_PATCH_INFO_IMAGE) && (patch_info->data.image == acfg->image)) {
2097 /* Stored in a GOT slot initialized at module load time */
2098 patch_info->type = MONO_PATCH_INFO_NONE;
2102 if ((patch_info->type == MONO_PATCH_INFO_METHOD) ||
2103 (patch_info->type == MONO_PATCH_INFO_INTERNAL_METHOD) ||
2104 (patch_info->type == MONO_PATCH_INFO_WRAPPER) ||
2105 (patch_info->type == MONO_PATCH_INFO_CLASS_INIT)) {
2106 /* Calls are made through the PLT */
2107 patch_info->type = MONO_PATCH_INFO_NONE;
2115 g_assert (acfg->has_got_slots [method_idx]);
2117 encode_value (n_patches, p, &p);
2120 encode_value (first_got_offset, p, &p);
2122 /* First encode the type+position table */
2125 for (pindex = 0; pindex < patches->len; ++pindex) {
2127 patch_info = g_ptr_array_index (patches, pindex);
2129 if (patch_info->type == MONO_PATCH_INFO_NONE)
2134 //printf ("T: %d O: %d.\n", patch_info->type, patch_info->ip.i);
2135 offset = patch_info->ip.i - last_offset;
2136 last_offset = patch_info->ip.i;
2138 /* Only the type is needed */
2139 *p = patch_info->type;
2145 printf ("%s:\n", mono_method_full_name (cfg->method, TRUE));
2146 for (pindex = 0; pindex < patches->len; ++pindex) {
2147 patch_info = g_ptr_array_index (patches, pindex);
2148 if (patch_info->type != MONO_PATCH_INFO_NONE) {
2149 printf ("\t%s", patch_types [patch_info->type]);
2150 if (patch_info->type == MONO_PATCH_INFO_VTABLE)
2151 printf (": %s\n", patch_info->data.klass->name);
2159 /* Then encode the other info */
2160 for (pindex = 0; pindex < patches->len; ++pindex) {
2161 patch_info = g_ptr_array_index (patches, pindex);
2163 encode_patch (acfg, patch_info, p, &p, TRUE);
2166 acfg->stats.info_size += p - buf;
2168 /* Emit method info */
2170 emit_label (acfg, symbol);
2172 g_assert (p - buf < buf_size);
2173 emit_bytes (acfg, buf, p - buf);
2180 emit_exception_debug_info (MonoAotCompile *acfg, MonoCompile *cfg)
2184 guint32 debug_info_size;
2187 MonoMethodHeader *header;
2188 guint8 *p, *buf, *debug_info;
2190 method = cfg->method;
2191 code = cfg->native_code;
2192 header = mono_method_get_header (method);
2194 /* Make the labels local */
2195 symbol = g_strdup_printf (".Le_%x_p", mono_metadata_token_index (method->token));
2197 buf_size = header->num_clauses * 256 + 128;
2198 p = buf = g_malloc (buf_size);
2200 encode_value (cfg->code_len, p, &p);
2201 encode_value (cfg->used_int_regs, p, &p);
2203 /* Exception table */
2204 if (header->num_clauses) {
2205 MonoJitInfo *jinfo = cfg->jit_info;
2207 for (k = 0; k < header->num_clauses; ++k) {
2208 MonoJitExceptionInfo *ei = &jinfo->clauses [k];
2210 encode_value (ei->exvar_offset, p, &p);
2212 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER)
2213 encode_value ((gint)((guint8*)ei->data.filter - code), p, &p);
2215 encode_value ((gint)((guint8*)ei->try_start - code), p, &p);
2216 encode_value ((gint)((guint8*)ei->try_end - code), p, &p);
2217 encode_value ((gint)((guint8*)ei->handler_start - code), p, &p);
2221 mono_debug_serialize_debug_info (cfg, &debug_info, &debug_info_size);
2223 encode_value (debug_info_size, p, &p);
2224 if (debug_info_size) {
2225 memcpy (p, debug_info, debug_info_size);
2226 p += debug_info_size;
2227 g_free (debug_info);
2230 acfg->stats.ex_info_size += p - buf;
2234 emit_label (acfg, symbol);
2236 g_assert (p - buf < buf_size);
2237 emit_bytes (acfg, buf, p - buf);
2244 emit_klass_info (MonoAotCompile *acfg, guint32 token)
2246 MonoClass *klass = mono_class_get (acfg->image, token);
2250 gboolean no_special_static;
2253 p = buf = g_malloc (buf_size);
2257 mono_class_init (klass);
2260 * Emit all the information which is required for creating vtables so
2261 * the runtime does not need to create the MonoMethod structures which
2262 * take up a lot of space.
2265 no_special_static = !mono_class_has_special_static_fields (klass);
2268 encode_value (klass->vtable_size, p, &p);
2269 encode_value ((no_special_static << 7) | (klass->has_static_refs << 6) | (klass->has_references << 5) | ((klass->blittable << 4) | (klass->nested_classes ? 1 : 0) << 3) | (klass->has_cctor << 2) | (klass->has_finalize << 1) | klass->ghcimpl, p, &p);
2270 if (klass->has_cctor)
2271 encode_method_ref (acfg, mono_class_get_cctor (klass), p, &p);
2272 if (klass->has_finalize)
2273 encode_method_ref (acfg, mono_class_get_finalizer (klass), p, &p);
2275 encode_value (klass->instance_size, p, &p);
2276 encode_value (mono_class_data_size (klass), p, &p);
2277 encode_value (klass->packing_size, p, &p);
2278 encode_value (klass->min_align, p, &p);
2280 for (i = 0; i < klass->vtable_size; ++i) {
2281 MonoMethod *cm = klass->vtable [i];
2284 encode_method_ref (acfg, cm, p, &p);
2286 encode_value (0, p, &p);
2290 acfg->stats.class_info_size += p - buf;
2293 label = g_strdup_printf (".LK_I_%x", token - MONO_TOKEN_TYPE_DEF - 1);
2294 emit_label (acfg, label);
2296 g_assert (p - buf < buf_size);
2297 emit_bytes (acfg, buf, p - buf);
2302 * Calls made from AOTed code are routed through a table of jumps similar to the
2303 * ELF PLT (Program Linkage Table). The differences are the following:
2304 * - the ELF PLT entries make an indirect jump though the GOT so they expect the
2305 * GOT pointer to be in EBX. We want to avoid this, so our table contains direct
2306 * jumps. This means the jumps need to be patched when the address of the callee is
2307 * known. Initially the PLT entries jump to code which transfer control to the
2308 * AOT runtime through the first PLT entry.
2311 emit_plt (MonoAotCompile *acfg)
2316 guint32 *plt_info_offsets;
2319 * Encode info need to resolve PLT entries.
2321 buf_size = acfg->plt_offset * 128;
2322 p = buf = g_malloc (buf_size);
2324 plt_info_offsets = g_new0 (guint32, acfg->plt_offset);
2326 for (i = 1; i < acfg->plt_offset; ++i) {
2327 MonoJumpInfo *patch_info = g_hash_table_lookup (acfg->plt_offset_to_patch, GUINT_TO_POINTER (i));
2329 plt_info_offsets [i] = p - buf;
2330 encode_value (patch_info->type, p, &p);
2331 encode_patch (acfg, patch_info, p, &p, FALSE);
2335 symbol = g_strdup_printf ("plt");
2337 /* This section will be made read-write by the AOT loader */
2338 emit_section_change (acfg, ".text", 0);
2339 emit_global (acfg, symbol, TRUE);
2340 emit_alignment (acfg, PAGESIZE);
2341 emit_label (acfg, symbol);
2344 * The first plt entry is used to transfer code to the AOT loader.
2346 emit_label (acfg, ".Lp_0");
2347 #if defined(__i386__)
2348 /* It is filled up during loading by the AOT loader. */
2349 emit_zero_bytes (acfg, 16);
2350 #elif defined(__x86_64__)
2351 /* This should be exactly 16 bytes long */
2352 /* jmpq *<offset>(%rip) */
2353 emit_byte (acfg, '\xff');
2354 emit_byte (acfg, '\x25');
2355 emit_symbol_diff (acfg, "plt_jump_table", ".", -4);
2356 emit_zero_bytes (acfg, 10);
2358 g_assert_not_reached ();
2361 for (i = 1; i < acfg->plt_offset; ++i) {
2364 label = g_strdup_printf (".Lp_%d", i);
2365 emit_label (acfg, label);
2367 #if defined(__i386__)
2368 /* Need to make sure this is 5 bytes long */
2369 emit_byte (acfg, '\xe9');
2370 label = g_strdup_printf (".Lpd_%d", i);
2371 emit_symbol_diff (acfg, label, ".", -4);
2373 #elif defined(__x86_64__)
2375 * We can't emit jumps because they are 32 bits only so they can't be patched.
2376 * So we emit a jump table instead whose entries are patched by the AOT loader to
2377 * point to .Lpd entries. ELF stores these in the GOT too, but we don't, since
2378 * methods with GOT entries can't be called directly.
2379 * We also emit the default PLT code here since the PLT code will not be patched.
2380 * An x86_64 plt entry is 16 bytes long, init_plt () depends on this.
2382 /* jmpq *<offset>(%rip) */
2383 emit_byte (acfg, '\xff');
2384 emit_byte (acfg, '\x25');
2385 emit_symbol_diff (acfg, "plt_jump_table", ".", (i * sizeof (gpointer)) -4);
2386 /* mov <plt info offset>, %eax */
2387 emit_byte (acfg, '\xb8');
2388 emit_int32 (acfg, plt_info_offsets [i]);
2390 emit_byte (acfg, '\xe9');
2391 emit_symbol_diff (acfg, ".Lp_0", ".", -4);
2393 g_assert_not_reached ();
2397 symbol = g_strdup_printf ("plt_end");
2398 emit_global (acfg, symbol, TRUE);
2399 emit_label (acfg, symbol);
2402 * Emit the default targets for the PLT entries separately since these will not
2403 * be modified at runtime.
2405 for (i = 1; i < acfg->plt_offset; ++i) {
2408 label = g_strdup_printf (".Lpd_%d", i);
2409 emit_label (acfg, label);
2412 /* Put the offset into the register expected by mono_aot_plt_trampoline */
2413 #if defined(__i386__)
2414 /* movl $const, %eax */
2415 emit_byte (acfg, '\xb8');
2416 emit_int32 (acfg, plt_info_offsets [i]);
2418 emit_byte (acfg, '\xe9');
2419 emit_symbol_diff (acfg, ".Lp_0", ".", -4);
2420 #elif defined(__x86_64__)
2421 /* Emitted along with the PLT entries since they will not be patched */
2423 g_assert_not_reached ();
2428 symbol = g_strdup_printf ("plt_info");
2429 emit_global (acfg, symbol, FALSE);
2430 emit_label (acfg, symbol);
2432 g_assert (p - buf < buf_size);
2433 emit_bytes (acfg, buf, p - buf);
2436 symbol = g_strdup_printf ("plt_jump_table_addr");
2437 emit_section_change (acfg, ".data", 0);
2438 emit_global (acfg, symbol, FALSE);
2439 emit_alignment (acfg, 8);
2440 emit_label (acfg, symbol);
2441 emit_pointer (acfg, "plt_jump_table");
2443 symbol = g_strdup_printf ("plt_jump_table_size");
2444 emit_section_change (acfg, ".data", 0);
2445 emit_global (acfg, symbol, FALSE);
2446 emit_alignment (acfg, 8);
2447 emit_label (acfg, symbol);
2448 emit_symbol_diff (acfg, "plt_jump_table_end", "plt_jump_table", 0);
2450 /* Don't make this a global so accesses don't need relocations */
2451 symbol = g_strdup_printf ("plt_jump_table");
2452 emit_section_change (acfg, ".bss", 0);
2453 emit_label (acfg, symbol);
2456 emit_zero_bytes (acfg, (int)(acfg->plt_offset * sizeof (gpointer)));
2459 symbol = g_strdup_printf ("plt_jump_table_end");
2460 emit_label (acfg, symbol);
2464 str_begins_with (const char *str1, const char *str2)
2466 int len = strlen (str2);
2467 return strncmp (str1, str2, len) == 0;
2471 mono_aot_parse_options (const char *aot_options, MonoAotOptions *opts)
2473 gchar **args, **ptr;
2475 memset (opts, 0, sizeof (*opts));
2477 args = g_strsplit (aot_options ? aot_options : "", ",", -1);
2478 for (ptr = args; ptr && *ptr; ptr ++) {
2479 const char *arg = *ptr;
2481 if (str_begins_with (arg, "outfile=")) {
2482 opts->outfile = g_strdup (arg + strlen ("outfile="));
2483 } else if (str_begins_with (arg, "save-temps")) {
2484 opts->save_temps = TRUE;
2485 } else if (str_begins_with (arg, "keep-temps")) {
2486 opts->save_temps = TRUE;
2487 } else if (str_begins_with (arg, "write-symbols")) {
2488 opts->write_symbols = TRUE;
2489 } else if (str_begins_with (arg, "metadata-only")) {
2490 opts->metadata_only = TRUE;
2492 fprintf (stderr, "AOT : Unknown argument '%s'.\n", arg);
2499 compile_method (MonoAotCompile *acfg, int index)
2503 MonoJumpInfo *patch_info;
2505 guint32 token = MONO_TOKEN_METHOD_DEF | (index + 1);
2508 if (acfg->aot_opts.metadata_only)
2511 method = mono_get_method (acfg->image, token, NULL);
2513 method_idx = mono_metadata_token_index (method->token);
2515 /* fixme: maybe we can also precompile wrapper methods */
2516 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
2517 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2518 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
2519 (method->flags & METHOD_ATTRIBUTE_ABSTRACT)) {
2520 //printf ("Skip (impossible): %s\n", mono_method_full_name (method, TRUE));
2524 acfg->stats.mcount++;
2526 /* fixme: we need to patch the IP for the LMF in that case */
2527 if (method->save_lmf) {
2528 //printf ("Skip (needs lmf): %s\n", mono_method_full_name (method, TRUE));
2529 acfg->stats.lmfcount++;
2534 * Since these methods are the only ones which are compiled with
2535 * AOT support, and they are not used by runtime startup/shutdown code,
2536 * the runtime will not see AOT methods during AOT compilation,so it
2537 * does not need to support them by creating a fake GOT etc.
2539 cfg = mini_method_compile (method, acfg->opts, mono_get_root_domain (), FALSE, TRUE, 0);
2540 if (cfg->exception_type != MONO_EXCEPTION_NONE) {
2541 /* Let the exception happen at runtime */
2545 if (cfg->disable_aot) {
2546 //printf ("Skip (other): %s\n", mono_method_full_name (method, TRUE));
2547 acfg->stats.ocount++;
2548 mono_destroy_compile (cfg);
2553 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2554 if (patch_info->type == MONO_PATCH_INFO_ABS) {
2555 /* unable to handle this */
2556 //printf ("Skip (abs addr): %s %d\n", mono_method_full_name (method, TRUE), patch_info->type);
2563 acfg->stats.abscount++;
2564 mono_destroy_compile (cfg);
2569 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2570 if (patch_info->type == MONO_PATCH_INFO_METHOD_JUMP) {
2572 * FIXME: We can't handle this because mono_jit_compile_method_inner will try
2573 * to patch the AOT code when the target of the jump is compiled.
2581 acfg->stats.ocount++;
2582 mono_destroy_compile (cfg);
2586 /* some wrappers are very common */
2587 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2588 if (patch_info->type == MONO_PATCH_INFO_METHODCONST) {
2589 switch (patch_info->data.method->wrapper_type) {
2590 case MONO_WRAPPER_PROXY_ISINST:
2591 patch_info->type = MONO_PATCH_INFO_WRAPPER;
2595 if (patch_info->type == MONO_PATCH_INFO_METHOD) {
2596 switch (patch_info->data.method->wrapper_type) {
2597 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2598 case MONO_WRAPPER_STFLD:
2599 case MONO_WRAPPER_LDFLD:
2600 case MONO_WRAPPER_LDFLDA:
2601 case MONO_WRAPPER_LDFLD_REMOTE:
2602 case MONO_WRAPPER_STFLD_REMOTE:
2603 case MONO_WRAPPER_STELEMREF:
2604 case MONO_WRAPPER_ISINST:
2605 case MONO_WRAPPER_PROXY_ISINST:
2606 patch_info->type = MONO_PATCH_INFO_WRAPPER;
2613 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2614 switch (patch_info->type) {
2615 case MONO_PATCH_INFO_METHOD:
2616 case MONO_PATCH_INFO_METHODCONST:
2617 if (patch_info->data.method->wrapper_type) {
2618 /* unable to handle this */
2619 //printf ("Skip (wrapper call): %s %d -> %s\n", mono_method_full_name (method, TRUE), patch_info->type, mono_method_full_name (patch_info->data.method, TRUE));
2623 if (!patch_info->data.method->token)
2625 * The method is part of a constructed type like Int[,].Set (). It doesn't
2626 * have a token, and we can't make one, since the parent type is part of
2627 * assembly which contains the element type, and not the assembly which
2628 * referenced this type.
2632 case MONO_PATCH_INFO_VTABLE:
2633 case MONO_PATCH_INFO_CLASS_INIT:
2634 case MONO_PATCH_INFO_CLASS:
2635 case MONO_PATCH_INFO_IID:
2636 case MONO_PATCH_INFO_ADJUSTED_IID:
2637 if (!patch_info->data.klass->type_token)
2638 if (!patch_info->data.klass->element_class->type_token)
2647 acfg->stats.wrappercount++;
2648 mono_destroy_compile (cfg);
2652 /* Determine whenever the method has GOT slots */
2653 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2654 switch (patch_info->type) {
2655 case MONO_PATCH_INFO_LABEL:
2656 case MONO_PATCH_INFO_BB:
2657 case MONO_PATCH_INFO_GOT_OFFSET:
2658 case MONO_PATCH_INFO_NONE:
2659 case MONO_PATCH_INFO_METHOD:
2660 case MONO_PATCH_INFO_INTERNAL_METHOD:
2661 case MONO_PATCH_INFO_WRAPPER:
2663 case MONO_PATCH_INFO_IMAGE:
2664 if (patch_info->data.image == acfg->image)
2665 /* Stored in GOT slot 0 */
2669 acfg->has_got_slots [method_idx] = TRUE;
2674 if (!acfg->has_got_slots [method_idx])
2675 acfg->stats.methods_without_got_slots ++;
2677 /* Make a copy of the patch info which is in the mempool */
2679 MonoJumpInfo *patches = NULL, *patches_end = NULL;
2681 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2682 MonoJumpInfo *new_patch_info = mono_patch_info_dup_mp (acfg->mempool, patch_info);
2685 patches = new_patch_info;
2687 patches_end->next = new_patch_info;
2688 patches_end = new_patch_info;
2690 cfg->patch_info = patches;
2693 /* Free some fields used by cfg to conserve memory */
2694 mono_mempool_destroy (cfg->mempool);
2695 cfg->mempool = NULL;
2696 g_free (cfg->varinfo);
2697 cfg->varinfo = NULL;
2701 mono_regstate_free (cfg->rs);
2705 //printf ("Compile: %s\n", mono_method_full_name (method, TRUE));
2707 acfg->cfgs [index] = cfg;
2709 g_hash_table_insert (acfg->method_to_cfg, cfg->method, cfg);
2711 acfg->stats.ccount++;
2715 load_profile_files (MonoAotCompile *acfg)
2719 int file_index, res, method_index, i;
2725 tmp = g_strdup_printf ("%s/.mono/aot-profile-data/%s-%s-%d", g_get_home_dir (), acfg->image->assembly_name, acfg->image->guid, file_index);
2727 if (!g_file_test (tmp, G_FILE_TEST_IS_REGULAR))
2730 infile = fopen (tmp, "r");
2733 printf ("Using profile data file '%s'\n", tmp);
2737 res = fscanf (infile, "%32s\n", ver);
2738 if ((res != 1) || strcmp (ver, "#VER:1") != 0) {
2739 printf ("Profile file has wrong version or invalid.\n");
2745 res = fscanf (infile, "%d\n", &token);
2749 method_index = mono_metadata_token_index (token) - 1;
2751 if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (method_index)))
2752 acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (method_index));
2757 /* Add missing methods */
2758 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2759 if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (i)))
2760 acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (i));
2767 * Collect all patches which have shared GOT entries and alloc entries for them. The
2768 * rest will get entries allocated during emit_code ().
2771 alloc_got_slots (MonoAotCompile *acfg)
2777 /* Slot 0 is reserved for the address of the current assembly */
2778 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
2779 ji->type = MONO_PATCH_INFO_IMAGE;
2780 ji->data.image = acfg->image;
2782 get_shared_got_offset (acfg, ji);
2784 for (l = acfg->method_order; l != NULL; l = l->next) {
2785 i = GPOINTER_TO_UINT (l->data);
2787 if (acfg->cfgs [i]) {
2788 MonoCompile *cfg = acfg->cfgs [i];
2790 for (ji = cfg->patch_info; ji; ji = ji->next) {
2792 case MONO_PATCH_INFO_VTABLE:
2793 case MONO_PATCH_INFO_CLASS:
2794 case MONO_PATCH_INFO_IID:
2795 case MONO_PATCH_INFO_ADJUSTED_IID:
2796 case MONO_PATCH_INFO_FIELD:
2797 case MONO_PATCH_INFO_SFLDA:
2798 case MONO_PATCH_INFO_DECLSEC:
2799 case MONO_PATCH_INFO_LDTOKEN:
2800 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2801 get_shared_got_offset (acfg, ji);
2812 emit_code (MonoAotCompile *acfg)
2818 symbol = g_strdup_printf ("methods");
2819 emit_section_change (acfg, ".text", 0);
2820 emit_global (acfg, symbol, TRUE);
2821 emit_alignment (acfg, 8);
2822 emit_label (acfg, symbol);
2824 for (l = acfg->method_order; l != NULL; l = l->next) {
2825 i = GPOINTER_TO_UINT (l->data);
2828 emit_method_code (acfg, acfg->cfgs [i]);
2831 symbol = g_strdup_printf ("methods_end");
2832 emit_section_change (acfg, ".text", 0);
2833 emit_global (acfg, symbol, FALSE);
2834 emit_alignment (acfg, 8);
2835 emit_label (acfg, symbol);
2837 symbol = g_strdup_printf ("method_offsets");
2838 emit_section_change (acfg, ".text", 1);
2839 emit_global (acfg, symbol, FALSE);
2840 emit_alignment (acfg, 8);
2841 emit_label (acfg, symbol);
2843 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2844 if (acfg->cfgs [i]) {
2845 symbol = g_strdup_printf (".Lm_%x", i + 1);
2846 emit_symbol_diff (acfg, symbol, "methods", 0);
2848 emit_int32 (acfg, 0xffffffff);
2855 emit_info (MonoAotCompile *acfg)
2861 /* Emit method info */
2862 symbol = g_strdup_printf ("method_info");
2863 emit_section_change (acfg, ".text", 1);
2864 emit_global (acfg, symbol, FALSE);
2865 emit_alignment (acfg, 8);
2866 emit_label (acfg, symbol);
2868 /* To reduce size of generated assembly code */
2869 symbol = g_strdup_printf ("mi");
2870 emit_label (acfg, symbol);
2872 for (l = acfg->method_order; l != NULL; l = l->next) {
2873 i = GPOINTER_TO_UINT (l->data);
2876 emit_method_info (acfg, acfg->cfgs [i]);
2879 symbol = g_strdup_printf ("method_info_offsets");
2880 emit_section_change (acfg, ".text", 1);
2881 emit_global (acfg, symbol, FALSE);
2882 emit_alignment (acfg, 8);
2883 emit_label (acfg, symbol);
2885 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2886 if (acfg->cfgs [i]) {
2887 symbol = g_strdup_printf (".Lm_%x_p", i + 1);
2888 emit_symbol_diff (acfg, symbol, "mi", 0);
2890 emit_int32 (acfg, 0);
2897 emit_method_order (MonoAotCompile *acfg)
2903 symbol = g_strdup_printf ("method_order");
2904 emit_section_change (acfg, ".text", 1);
2905 emit_global (acfg, symbol, FALSE);
2906 emit_alignment (acfg, 8);
2907 emit_label (acfg, symbol);
2909 /* First emit an index table */
2912 for (l = acfg->method_order; l != NULL; l = l->next) {
2913 i = GPOINTER_TO_UINT (l->data);
2915 if (acfg->cfgs [i]) {
2916 if ((index % 1024) == 0) {
2917 emit_int32 (acfg, i);
2925 emit_int32 (acfg, 0xffffff);
2927 /* Then emit the whole method order */
2928 for (l = acfg->method_order; l != NULL; l = l->next) {
2929 i = GPOINTER_TO_UINT (l->data);
2931 if (acfg->cfgs [i]) {
2932 emit_int32 (acfg, i);
2937 symbol = g_strdup_printf ("method_order_end");
2938 emit_section_change (acfg, ".text", 1);
2939 emit_global (acfg, symbol, FALSE);
2940 emit_label (acfg, symbol);
2944 emit_exception_info (MonoAotCompile *acfg)
2949 symbol = g_strdup_printf ("ex_info");
2950 emit_section_change (acfg, ".text", 1);
2951 emit_global (acfg, symbol, FALSE);
2952 emit_alignment (acfg, 8);
2953 emit_label (acfg, symbol);
2955 /* To reduce size of generate assembly */
2956 symbol = g_strdup_printf ("ex");
2957 emit_label (acfg, symbol);
2959 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2961 emit_exception_debug_info (acfg, acfg->cfgs [i]);
2964 symbol = g_strdup_printf ("ex_info_offsets");
2965 emit_section_change (acfg, ".text", 1);
2966 emit_global (acfg, symbol, FALSE);
2967 emit_alignment (acfg, 8);
2968 emit_label (acfg, symbol);
2970 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2971 if (acfg->cfgs [i]) {
2972 symbol = g_strdup_printf (".Le_%x_p", i + 1);
2973 emit_symbol_diff (acfg, symbol, "ex", 0);
2975 emit_int32 (acfg, 0);
2982 emit_class_info (MonoAotCompile *acfg)
2987 symbol = g_strdup_printf ("class_info");
2988 emit_section_change (acfg, ".text", 1);
2989 emit_global (acfg, symbol, FALSE);
2990 emit_alignment (acfg, 8);
2991 emit_label (acfg, symbol);
2993 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i)
2994 emit_klass_info (acfg, MONO_TOKEN_TYPE_DEF | (i + 1));
2996 symbol = g_strdup_printf ("class_info_offsets");
2997 emit_section_change (acfg, ".text", 1);
2998 emit_global (acfg, symbol, FALSE);
2999 emit_alignment (acfg, 8);
3000 emit_label (acfg, symbol);
3002 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
3003 symbol = g_strdup_printf (".LK_I_%x", i);
3004 emit_symbol_diff (acfg, symbol, "class_info", 0);
3009 typedef struct ClassNameTableEntry {
3010 guint32 token, index;
3011 struct ClassNameTableEntry *next;
3012 } ClassNameTableEntry;
3015 emit_class_name_table (MonoAotCompile *acfg)
3018 guint32 token, hash;
3023 ClassNameTableEntry *entry, *new_entry;
3026 * Construct a chained hash table for mapping class names to typedef tokens.
3028 table_size = g_spaced_primes_closest ((int)(acfg->image->tables [MONO_TABLE_TYPEDEF].rows * 1.5));
3029 table = g_ptr_array_sized_new (table_size);
3030 for (i = 0; i < table_size; ++i)
3031 g_ptr_array_add (table, NULL);
3032 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
3033 token = MONO_TOKEN_TYPE_DEF | (i + 1);
3034 klass = mono_class_get (acfg->image, token);
3035 full_name = mono_type_get_full_name (klass);
3036 hash = g_str_hash (full_name) % table_size;
3038 //printf ("A: '%s' %d %d\n", full_name, g_str_hash (full_name), hash);
3040 /* FIXME: Allocate from the mempool */
3041 new_entry = g_new0 (ClassNameTableEntry, 1);
3042 new_entry->token = token;
3044 entry = g_ptr_array_index (table, hash);
3045 if (entry == NULL) {
3046 new_entry->index = hash;
3047 g_ptr_array_index (table, hash) = new_entry;
3050 entry = entry->next;
3052 entry->next = new_entry;
3053 new_entry->index = table->len;
3054 g_ptr_array_add (table, new_entry);
3058 /* Emit the table */
3059 symbol = g_strdup_printf ("class_name_table");
3060 emit_section_change (acfg, ".text", 0);
3061 emit_global (acfg, symbol, FALSE);
3062 emit_alignment (acfg, 8);
3063 emit_label (acfg, symbol);
3065 /* FIXME: Optimize memory usage */
3066 g_assert (table_size < 65000);
3067 emit_int16 (acfg, table_size);
3068 g_assert (table->len < 65000);
3069 for (i = 0; i < table->len; ++i) {
3070 ClassNameTableEntry *entry = g_ptr_array_index (table, i);
3072 if (entry == NULL) {
3073 emit_int16 (acfg, 0);
3074 emit_int16 (acfg, 0);
3076 emit_int16 (acfg, mono_metadata_token_index (entry->token));
3078 emit_int16 (acfg, entry->next->index);
3080 emit_int16 (acfg, 0);
3086 emit_image_table (MonoAotCompile *acfg)
3092 * The image table is small but referenced in a lot of places.
3093 * So we emit it at once, and reference its elements by an index.
3096 symbol = g_strdup_printf ("mono_image_table");
3097 emit_section_change (acfg, ".text", 1);
3098 emit_global (acfg, symbol, FALSE);
3099 emit_alignment (acfg, 8);
3100 emit_label (acfg, symbol);
3101 emit_int32 (acfg, acfg->image_table->len);
3102 for (i = 0; i < acfg->image_table->len; i++) {
3103 MonoImage *image = (MonoImage*)g_ptr_array_index (acfg->image_table, i);
3104 MonoAssemblyName *aname = &image->assembly->aname;
3106 /* FIXME: Support multi-module assemblies */
3107 g_assert (image->assembly->image == image);
3109 emit_string (acfg, image->assembly_name);
3110 emit_string (acfg, image->guid);
3111 emit_string (acfg, aname->culture ? aname->culture : "");
3112 emit_string (acfg, (const char*)aname->public_key_token);
3114 emit_alignment (acfg, 8);
3115 emit_int32 (acfg, aname->flags);
3116 emit_int32 (acfg, aname->major);
3117 emit_int32 (acfg, aname->minor);
3118 emit_int32 (acfg, aname->build);
3119 emit_int32 (acfg, aname->revision);
3124 emit_got_info (MonoAotCompile *acfg)
3129 guint32 *got_info_offsets;
3133 * - optimize offsets table.
3134 * - reduce number of exported symbols.
3135 * - emit info for a klass only once.
3136 * - determine when a method uses a GOT slot which is guaranteed to be already
3138 * - clean up and document the code.
3139 * - use String.Empty in class libs.
3142 /* Encode info required to decode shared GOT entries */
3143 buf_size = acfg->shared_patches->len * 64;
3144 p = buf = mono_mempool_alloc (acfg->mempool, buf_size);
3145 got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->shared_patches->len * sizeof (guint32));
3146 for (i = 0; i < acfg->shared_patches->len; ++i) {
3147 MonoJumpInfo *ji = g_ptr_array_index (acfg->shared_patches, i);
3149 /* No need to encode the patch type */
3150 got_info_offsets [i] = p - buf;
3151 encode_patch (acfg, ji, p, &p, FALSE);
3154 g_assert (p - buf <= buf_size);
3156 acfg->stats.got_info_size = p - buf;
3158 /* Emit got_info table */
3159 symbol = g_strdup_printf ("got_info");
3160 emit_section_change (acfg, ".text", 1);
3161 emit_global (acfg, symbol, FALSE);
3162 emit_alignment (acfg, 8);
3163 emit_label (acfg, symbol);
3165 emit_bytes (acfg, buf, p - buf);
3167 /* Emit got_info_offsets table */
3168 symbol = g_strdup_printf ("got_info_offsets");
3169 emit_section_change (acfg, ".text", 1);
3170 emit_global (acfg, symbol, FALSE);
3171 emit_alignment (acfg, 8);
3172 emit_label (acfg, symbol);
3174 for (i = 0; i < acfg->shared_patches->len; ++i)
3175 emit_int32 (acfg, got_info_offsets [i]);
3177 acfg->stats.got_info_offsets_size = acfg->shared_patches->len * 4;
3181 emit_got (MonoAotCompile *acfg)
3185 /* Don't make GOT global so accesses to it don't need relocations */
3186 symbol = g_strdup_printf ("got");
3187 emit_section_change (acfg, ".bss", 1);
3188 emit_alignment (acfg, 8);
3189 emit_label (acfg, symbol);
3190 if (acfg->got_offset > 0)
3191 emit_zero_bytes (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
3193 symbol = g_strdup_printf ("got_addr");
3194 emit_section_change (acfg, ".data", 1);
3195 emit_global (acfg, symbol, FALSE);
3196 emit_alignment (acfg, 8);
3197 emit_label (acfg, symbol);
3198 emit_pointer (acfg, "got");
3200 symbol = g_strdup_printf ("got_size");
3201 emit_section_change (acfg, ".data", 1);
3202 emit_global (acfg, symbol, FALSE);
3203 emit_alignment (acfg, 8);
3204 emit_label (acfg, symbol);
3205 emit_int32 (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
3209 emit_globals (MonoAotCompile *acfg)
3213 emit_string_symbol (acfg, "mono_assembly_guid" , acfg->image->guid);
3215 emit_string_symbol (acfg, "mono_aot_version", MONO_AOT_FILE_VERSION);
3217 opts_str = g_strdup_printf ("%d", acfg->opts);
3218 emit_string_symbol (acfg, "mono_aot_opt_flags", opts_str);
3223 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
3225 MonoImage *image = ass->image;
3228 MonoAotCompile *acfg;
3231 printf ("Mono Ahead of Time compiler - compiling assembly %s\n", image->name);
3233 acfg = g_new0 (MonoAotCompile, 1);
3234 acfg->plt_offset_to_patch = g_hash_table_new (NULL, NULL);
3235 acfg->patch_to_plt_offset = g_hash_table_new (NULL, NULL);
3236 acfg->patch_to_shared_got_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
3237 acfg->shared_patches = g_ptr_array_new ();
3238 acfg->method_to_cfg = g_hash_table_new (NULL, NULL);
3239 acfg->image_hash = g_hash_table_new (NULL, NULL);
3240 acfg->image_table = g_ptr_array_new ();
3241 acfg->image = image;
3243 acfg->mempool = mono_mempool_new ();
3245 mono_aot_parse_options (aot_options, &acfg->aot_opts);
3247 load_profile_files (acfg);
3249 if (mono_defaults.generic_nullable_class) {
3251 * FIXME: Its hard to skip generic methods or methods which use generics.
3253 printf ("Error: Can't AOT Net 2.0 assemblies.\n");
3259 cfgs = g_new0 (MonoCompile*, image->tables [MONO_TABLE_METHOD].rows + 32);
3261 acfg->nmethods = image->tables [MONO_TABLE_METHOD].rows;
3262 acfg->method_got_offsets = g_new0 (guint32, image->tables [MONO_TABLE_METHOD].rows + 32);
3263 acfg->has_got_slots = g_new0 (gboolean, image->tables [MONO_TABLE_METHOD].rows + 32);
3265 /* PLT offset 0 is reserved for the PLT trampoline */
3266 acfg->plt_offset = 1;
3268 /* Compile methods */
3269 for (i = 0; i < image->tables [MONO_TABLE_METHOD].rows; ++i)
3270 compile_method (acfg, i);
3272 alloc_got_slots (acfg);
3278 emit_method_order (acfg);
3280 emit_class_name_table (acfg);
3282 emit_got_info (acfg);
3284 emit_exception_info (acfg);
3286 emit_class_info (acfg);
3290 emit_image_table (acfg);
3294 emit_globals (acfg);
3296 symbol = g_strdup_printf ("mem_end");
3297 emit_section_change (acfg, ".text", 1);
3298 emit_global (acfg, symbol, FALSE);
3299 emit_alignment (acfg, 8);
3300 emit_label (acfg, symbol);
3302 printf ("Code: %d Info: %d Ex Info: %d Class Info: %d PLT: %d GOT Info: %d GOT Info Offsets: %d GOT: %d\n", acfg->stats.code_size, acfg->stats.info_size, acfg->stats.ex_info_size, acfg->stats.class_info_size, acfg->plt_offset, acfg->stats.got_info_size, acfg->stats.got_info_offsets_size, (int)(acfg->got_offset * sizeof (gpointer)));
3304 emit_writeout (acfg);
3306 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);
3307 printf ("%d methods contain absolute addresses (%d%%)\n", acfg->stats.abscount, acfg->stats.mcount ? (acfg->stats.abscount * 100) / acfg->stats.mcount : 100);
3308 printf ("%d methods contain wrapper references (%d%%)\n", acfg->stats.wrappercount, acfg->stats.mcount ? (acfg->stats.wrappercount * 100) / acfg->stats.mcount : 100);
3309 printf ("%d methods contain lmf pointers (%d%%)\n", acfg->stats.lmfcount, acfg->stats.mcount ? (acfg->stats.lmfcount * 100) / acfg->stats.mcount : 100);
3310 printf ("%d methods have other problems (%d%%)\n", acfg->stats.ocount, acfg->stats.mcount ? (acfg->stats.ocount * 100) / acfg->stats.mcount : 100);
3311 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);
3312 printf ("Direct calls: %d (%d%%)\n", acfg->stats.direct_calls, acfg->stats.all_calls ? (acfg->stats.direct_calls * 100) / acfg->stats.all_calls : 100);
3314 printf ("GOT slot distribution:\n");
3315 for (i = 0; i < MONO_PATCH_INFO_NONE; ++i)
3316 if (acfg->stats.got_slot_types [i])
3317 printf ("\t%s: %d\n", patch_types [i], acfg->stats.got_slot_types [i]);
3327 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)