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.
11 /* Remaining AOT-only work:
12 * - optimize the trampolines, generate more code in the arch files.
13 * - make things more consistent with how elf works, for example, use ELF
15 * Remaining generics sharing work:
16 * - optimize the size of the data which is encoded.
17 * - optimize the runtime loading of data:
18 * - the trampoline code calls mono_jit_info_table_find () to find the rgctx,
19 * which loads the debugging+exception handling info for the method. This is a
20 * huge waste of time and code, since the rgctx structure is currently empty.
21 * - every shared method has a MonoGenericJitInfo structure which is only really
22 * used for handling catch clauses with open types, not a very common use case.
26 #include <sys/types.h>
36 #ifndef PLATFORM_WIN32
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.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 #define TV_DECLARE(name) gint64 name
72 #define TV_GETTIME(tv) tv = mono_100ns_ticks ()
73 #define TV_ELAPSED(start,end) (((end) - (start)) / 10)
76 #define SHARED_EXT ".dll"
77 #elif defined(__ppc__) && defined(__MACH__)
78 #define SHARED_EXT ".dylib"
80 #define SHARED_EXT ".so"
83 #define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
84 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
85 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
87 typedef struct MonoAotOptions {
90 gboolean write_symbols;
91 gboolean metadata_only;
92 gboolean bind_to_runtime_version;
101 gboolean print_skipped_methods;
105 typedef struct MonoAotStats {
106 int ccount, mcount, lmfcount, abscount, gcount, ocount, genericcount;
107 int code_size, info_size, ex_info_size, unwind_info_size, got_size, class_info_size, got_info_size, got_info_offsets_size;
108 int methods_without_got_slots, direct_calls, all_calls;
110 int got_slot_types [MONO_PATCH_INFO_NONE];
111 int jit_time, gen_time, link_time;
114 typedef struct MonoAotCompile {
117 GHashTable *method_indexes;
120 GHashTable *patch_to_plt_offset;
121 GHashTable *plt_offset_to_patch;
122 GHashTable *patch_to_got_offset;
123 GPtrArray *got_patches;
124 GHashTable *image_hash;
125 GHashTable *method_to_cfg;
126 GHashTable *token_info_hash;
127 GPtrArray *extra_methods;
128 GPtrArray *image_table;
131 guint32 *plt_got_info_offsets;
132 guint32 got_offset, plt_offset, plt_got_offset_base;
133 /* Number of GOT entries reserved for trampolines */
134 guint32 num_trampoline_got_entries;
136 guint32 num_trampolines [MONO_AOT_TRAMP_NUM];
137 guint32 trampoline_got_offset_base [MONO_AOT_TRAMP_NUM];
138 guint32 trampoline_size [MONO_AOT_TRAMP_NUM];
140 MonoAotOptions aot_opts;
143 MonoMemPool *mempool;
146 char *static_linking_symbol;
147 CRITICAL_SECTION mutex;
148 gboolean use_bin_writer;
150 MonoDwarfWriter *dwarf;
154 GHashTable *unwind_info_offsets;
155 GPtrArray *unwind_ops;
156 guint32 unwind_info_offset;
159 GHashTable *method_label_hash;
160 const char *temp_prefix;
161 guint32 label_generator;
164 #define mono_acfg_lock(acfg) EnterCriticalSection (&((acfg)->mutex))
165 #define mono_acfg_unlock(acfg) LeaveCriticalSection (&((acfg)->mutex))
167 #ifdef HAVE_ARRAY_ELEM_INIT
168 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
169 #define MSGSTRFIELD1(line) str##line
170 static const struct msgstr_t {
171 #define PATCH_INFO(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
172 #include "patch-info.h"
175 #define PATCH_INFO(a,b) b,
176 #include "patch-info.h"
179 static const gint16 opidx [] = {
180 #define PATCH_INFO(a,b) [MONO_PATCH_INFO_ ## a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
181 #include "patch-info.h"
185 static G_GNUC_UNUSED const char*
186 get_patch_name (int info)
188 return (const char*)&opstr + opidx [info];
192 #define PATCH_INFO(a,b) b,
193 static const char* const
194 patch_types [MONO_PATCH_INFO_NUM + 1] = {
195 #include "patch-info.h"
199 static G_GNUC_UNUSED const char*
200 get_patch_name (int info)
202 return patch_types [info];
207 /* Wrappers around the image writer functions */
210 emit_section_change (MonoAotCompile *acfg, const char *section_name, int subsection_index)
212 img_writer_emit_section_change (acfg->w, section_name, subsection_index);
216 emit_push_section (MonoAotCompile *acfg, const char *section_name, int subsection)
218 img_writer_emit_push_section (acfg->w, section_name, subsection);
222 emit_pop_section (MonoAotCompile *acfg)
224 img_writer_emit_pop_section (acfg->w);
228 emit_local_symbol (MonoAotCompile *acfg, const char *name, const char *end_label, gboolean func)
230 img_writer_emit_local_symbol (acfg->w, name, end_label, func);
234 emit_label (MonoAotCompile *acfg, const char *name)
236 img_writer_emit_label (acfg->w, name);
240 emit_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
242 img_writer_emit_bytes (acfg->w, buf, size);
246 emit_string (MonoAotCompile *acfg, const char *value)
248 img_writer_emit_string (acfg->w, value);
252 emit_line (MonoAotCompile *acfg)
254 img_writer_emit_line (acfg->w);
258 emit_alignment (MonoAotCompile *acfg, int size)
260 img_writer_emit_alignment (acfg->w, size);
264 emit_pointer_unaligned (MonoAotCompile *acfg, const char *target)
266 img_writer_emit_pointer_unaligned (acfg->w, target);
270 emit_pointer (MonoAotCompile *acfg, const char *target)
272 img_writer_emit_pointer (acfg->w, target);
276 emit_int16 (MonoAotCompile *acfg, int value)
278 img_writer_emit_int16 (acfg->w, value);
282 emit_int32 (MonoAotCompile *acfg, int value)
284 img_writer_emit_int32 (acfg->w, value);
288 emit_symbol_diff (MonoAotCompile *acfg, const char *end, const char* start, int offset)
290 img_writer_emit_symbol_diff (acfg->w, end, start, offset);
294 emit_zero_bytes (MonoAotCompile *acfg, int num)
296 img_writer_emit_zero_bytes (acfg->w, num);
300 emit_byte (MonoAotCompile *acfg, guint8 val)
302 img_writer_emit_byte (acfg->w, val);
305 static G_GNUC_UNUSED void
306 emit_global_inner (MonoAotCompile *acfg, const char *name, gboolean func)
308 img_writer_emit_global (acfg->w, name, func);
312 emit_global (MonoAotCompile *acfg, const char *name, gboolean func)
314 if (acfg->aot_opts.no_dlsym) {
315 g_ptr_array_add (acfg->globals, g_strdup (name));
316 img_writer_emit_local_symbol (acfg->w, name, NULL, func);
318 img_writer_emit_global (acfg->w, name, func);
323 emit_symbol_size (MonoAotCompile *acfg, const char *name, const char *end_label)
325 img_writer_emit_symbol_size (acfg->w, name, end_label);
329 emit_string_symbol (MonoAotCompile *acfg, const char *name, const char *value)
331 img_writer_emit_section_change (acfg->w, ".text", 1);
332 emit_global (acfg, name, FALSE);
333 img_writer_emit_label (acfg->w, name);
334 img_writer_emit_string (acfg->w, value);
337 static G_GNUC_UNUSED void
338 emit_uleb128 (MonoAotCompile *acfg, guint32 value)
341 guint8 b = value & 0x7f;
343 if (value != 0) /* more bytes to come */
349 static G_GNUC_UNUSED void
350 emit_sleb128 (MonoAotCompile *acfg, gint64 value)
353 gboolean negative = (value < 0);
360 /* the following is unnecessary if the
361 * implementation of >>= uses an arithmetic rather
362 * than logical shift for a signed left operand
366 value |= - ((gint64)1 <<(size - 7));
367 /* sign bit of byte is second high order bit (0x40) */
368 if ((value == 0 && !(byte & 0x40)) ||
369 (value == -1 && (byte & 0x40)))
373 emit_byte (acfg, byte);
377 static G_GNUC_UNUSED void
378 encode_uleb128 (guint32 value, guint8 *buf, guint8 **endbuf)
383 guint8 b = value & 0x7f;
385 if (value != 0) /* more bytes to come */
393 static G_GNUC_UNUSED void
394 encode_sleb128 (gint32 value, guint8 *buf, guint8 **endbuf)
397 gboolean negative = (value < 0);
405 /* the following is unnecessary if the
406 * implementation of >>= uses an arithmetic rather
407 * than logical shift for a signed left operand
411 value |= - (1 <<(size - 7));
412 /* sign bit of byte is second high order bit (0x40) */
413 if ((value == 0 && !(byte & 0x40)) ||
414 (value == -1 && (byte & 0x40)))
424 /* ARCHITECTURE SPECIFIC CODE */
426 #if defined(TARGET_X86) || defined(TARGET_AMD64) || defined(TARGET_ARM) || defined(TARGET_POWERPC)
427 #define EMIT_DWARF_INFO 1
430 #if defined(TARGET_ARM)
431 #define AOT_FUNC_ALIGNMENT 4
433 #define AOT_FUNC_ALIGNMENT 16
436 #if defined(TARGET_POWERPC64) && !defined(__mono_ilp32__)
437 #define PPC_LD_OP "ld"
438 #define PPC_LDX_OP "ldx"
440 #define PPC_LD_OP "lwz"
441 #define PPC_LDX_OP "lwzx"
445 * arch_emit_direct_call:
447 * Emit a direct call to the symbol TARGET. CALL_SIZE is set to the size of the
451 arch_emit_direct_call (MonoAotCompile *acfg, const char *target, int *call_size)
453 #if defined(TARGET_X86) || defined(TARGET_AMD64)
454 /* Need to make sure this is exactly 5 bytes long */
455 emit_byte (acfg, '\xe8');
456 emit_symbol_diff (acfg, target, ".", -4);
458 #elif defined(TARGET_ARM)
459 if (acfg->use_bin_writer) {
466 img_writer_emit_reloc (acfg->w, R_ARM_CALL, target, -8);
467 emit_bytes (acfg, buf, 4);
469 img_writer_emit_unset_mode (acfg->w);
470 fprintf (acfg->fp, "bl %s\n", target);
473 #elif defined(TARGET_POWERPC)
474 if (acfg->use_bin_writer) {
475 g_assert_not_reached ();
477 img_writer_emit_unset_mode (acfg->w);
478 fprintf (acfg->fp, "bl %s\n", target);
482 g_assert_not_reached ();
488 * - we use an approach similar to the x86 abi: reserve a register (r30) to hold
490 * - The full-aot trampolines need access to the GOT of mscorlib, so we store
491 * in in the 2. slot of every GOT, and require every method to place the GOT
492 * address in r30, even when it doesn't access the GOT otherwise. This way,
493 * the trampolines can compute the mscorlib GOT address by loading 4(r30).
498 * PPC64 uses function descriptors which greatly complicate all code, since
499 * these are used very inconsistently in the runtime. Some functions like
500 * mono_compile_method () return ftn descriptors, while others like the
501 * trampoline creation functions do not.
502 * We assume that all GOT slots contain function descriptors, and create
503 * descriptors in aot-runtime.c when needed.
504 * The ppc64 abi uses r2 to hold the address of the TOC/GOT, which is loaded
505 * from function descriptors, we could do the same, but it would require
506 * rewriting all the ppc/aot code to handle function descriptors properly.
507 * So instead, we use the same approach as on PPC32.
508 * This is a horrible mess, but fixing it would probably lead to an even bigger
512 #ifdef MONO_ARCH_AOT_SUPPORTED
514 * arch_emit_got_offset:
516 * The memory pointed to by CODE should hold native code for computing the GOT
517 * address. Emit this code while patching it with the offset between code and
518 * the GOT. CODE_SIZE is set to the number of bytes emitted.
521 arch_emit_got_offset (MonoAotCompile *acfg, guint8 *code, int *code_size)
523 #if defined(TARGET_POWERPC64)
524 g_assert (!acfg->use_bin_writer);
525 img_writer_emit_unset_mode (acfg->w);
527 * The ppc32 code doesn't seem to work on ppc64, the assembler complains about
528 * unsupported relocations. So we store the got address into the .Lgot_addr
529 * symbol which is in the text segment, compute its address, and load it.
531 fprintf (acfg->fp, ".L%d:\n", acfg->label_generator);
532 fprintf (acfg->fp, "lis 0, (.Lgot_addr + 4 - .L%d)@h\n", acfg->label_generator);
533 fprintf (acfg->fp, "ori 0, 0, (.Lgot_addr + 4 - .L%d)@l\n", acfg->label_generator);
534 fprintf (acfg->fp, "add 30, 30, 0\n");
535 fprintf (acfg->fp, "%s 30, 0(30)\n", PPC_LD_OP);
536 acfg->label_generator ++;
538 #elif defined(TARGET_POWERPC)
539 g_assert (!acfg->use_bin_writer);
540 img_writer_emit_unset_mode (acfg->w);
541 fprintf (acfg->fp, ".L%d:\n", acfg->label_generator);
542 fprintf (acfg->fp, "lis 0, (%s + 4 - .L%d)@h\n", acfg->got_symbol, acfg->label_generator);
543 fprintf (acfg->fp, "ori 0, 0, (%s + 4 - .L%d)@l\n", acfg->got_symbol, acfg->label_generator);
544 acfg->label_generator ++;
547 guint32 offset = mono_arch_get_patch_offset (code);
548 emit_bytes (acfg, code, offset);
549 emit_symbol_diff (acfg, acfg->got_symbol, ".", offset);
551 *code_size = offset + 4;
556 * arch_emit_got_access:
558 * The memory pointed to by CODE should hold native code for loading a GOT
559 * slot. Emit this code while patching it so it accesses the GOT slot GOT_SLOT.
560 * CODE_SIZE is set to the number of bytes emitted.
563 arch_emit_got_access (MonoAotCompile *acfg, guint8 *code, int got_slot, int *code_size)
565 /* Emit beginning of instruction */
566 emit_bytes (acfg, code, mono_arch_get_patch_offset (code));
568 /* Emit the offset */
570 emit_symbol_diff (acfg, acfg->got_symbol, ".", (unsigned int) ((got_slot * sizeof (gpointer)) - 4));
571 *code_size = mono_arch_get_patch_offset (code) + 4;
572 #elif defined(TARGET_X86)
573 emit_int32 (acfg, (unsigned int) ((got_slot * sizeof (gpointer))));
574 *code_size = mono_arch_get_patch_offset (code) + 4;
575 #elif defined(TARGET_ARM)
576 emit_symbol_diff (acfg, acfg->got_symbol, ".", (unsigned int) ((got_slot * sizeof (gpointer))) - 12);
577 *code_size = mono_arch_get_patch_offset (code) + 4;
578 #elif defined(TARGET_POWERPC)
584 ppc_load32 (code, ppc_r0, got_slot * sizeof (gpointer));
585 g_assert (code - buf == 8);
586 emit_bytes (acfg, buf, code - buf);
587 *code_size = code - buf;
590 g_assert_not_reached ();
597 * arch_emit_plt_entry:
599 * Emit code for the PLT entry with index INDEX.
602 arch_emit_plt_entry (MonoAotCompile *acfg, int index)
604 #if defined(TARGET_X86)
606 /* It is filled up during loading by the AOT loader. */
607 emit_zero_bytes (acfg, 16);
609 /* Need to make sure this is 9 bytes long */
610 emit_byte (acfg, '\xe9');
611 emit_symbol_diff (acfg, acfg->plt_symbol, ".", -4);
612 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
614 #elif defined(TARGET_AMD64)
616 * We can't emit jumps because they are 32 bits only so they can't be patched.
617 * So we make indirect calls through GOT entries which are patched by the AOT
618 * loader to point to .Lpd entries.
619 * An x86_64 plt entry is 10 bytes long, init_plt () depends on this.
621 /* jmpq *<offset>(%rip) */
622 emit_byte (acfg, '\xff');
623 emit_byte (acfg, '\x25');
624 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) -4);
625 /* Used by mono_aot_get_plt_info_offset */
626 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
627 #elif defined(TARGET_ARM)
632 * - optimize OP_AOTCONST implementation
633 * - optimize the PLT entries
634 * - optimize SWITCH AOT implementation
635 * - implement IMT support
638 if (acfg->use_bin_writer && FALSE) {
639 /* FIXME: mono_arch_patch_plt_entry () needs to decode this */
640 /* We only emit 1 relocation since we implement it ourselves anyway */
641 img_writer_emit_reloc (acfg->w, R_ARM_ALU_PC_G0_NC, acfg->got_symbol, ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) - 8);
642 /* FIXME: A 2 instruction encoding is sufficient in most cases */
643 ARM_ADD_REG_IMM (code, ARMREG_IP, ARMREG_PC, 0, 0);
644 ARM_ADD_REG_IMM (code, ARMREG_IP, ARMREG_IP, 0, 0);
645 ARM_LDR_IMM (code, ARMREG_PC, ARMREG_IP, 0);
646 emit_bytes (acfg, buf, code - buf);
647 /* Used by mono_aot_get_plt_info_offset */
648 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
650 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 0);
651 ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_IP);
652 emit_bytes (acfg, buf, code - buf);
653 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) - 4);
654 /* Used by mono_aot_get_plt_info_offset */
655 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
658 * The plt_got_info_offset is computed automatically by
659 * mono_aot_get_plt_info_offset (), so no need to save it here.
661 #elif defined(TARGET_POWERPC)
662 guint32 offset = (acfg->plt_got_offset_base + index) * sizeof (gpointer);
664 /* The GOT address is guaranteed to be in r30 by OP_LOAD_GOTADDR */
665 g_assert (!acfg->use_bin_writer);
666 img_writer_emit_unset_mode (acfg->w);
667 fprintf (acfg->fp, "lis 11, %d@h\n", offset);
668 fprintf (acfg->fp, "ori 11, 11, %d@l\n", offset);
669 fprintf (acfg->fp, "add 11, 11, 30\n");
670 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
671 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
672 fprintf (acfg->fp, "%s 2, %d(11)\n", PPC_LD_OP, (int)sizeof (gpointer));
673 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
675 fprintf (acfg->fp, "mtctr 11\n");
676 fprintf (acfg->fp, "bctr\n");
677 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
679 g_assert_not_reached ();
684 * arch_emit_specific_trampoline:
686 * Emit code for a specific trampoline. OFFSET is the offset of the first of
687 * two GOT slots which contain the generic trampoline address and the trampoline
688 * argument. TRAMP_SIZE is set to the size of the emitted trampoline.
691 arch_emit_specific_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
694 * The trampolines created here are variations of the specific
695 * trampolines created in mono_arch_create_specific_trampoline (). The
697 * - the generic trampoline address is taken from a got slot.
698 * - the offset of the got slot where the trampoline argument is stored
699 * is embedded in the instruction stream, and the generic trampoline
700 * can load the argument by loading the offset, adding it to the
701 * address of the trampoline to get the address of the got slot, and
702 * loading the argument from there.
703 * - all the trampolines should be of the same length.
705 #if defined(TARGET_AMD64)
706 /* This should be exactly 16 bytes long */
708 /* call *<offset>(%rip) */
709 emit_byte (acfg, '\x41');
710 emit_byte (acfg, '\xff');
711 emit_byte (acfg, '\x15');
712 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
713 /* This should be relative to the start of the trampoline */
714 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 19);
715 emit_zero_bytes (acfg, 5);
716 #elif defined(TARGET_ARM)
720 /* This should be exactly 20 bytes long */
723 ARM_PUSH (code, 0x5fff);
724 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 4);
725 /* Load the value from the GOT */
726 ARM_LDR_REG_REG (code, ARMREG_R1, ARMREG_PC, ARMREG_R1);
728 ARM_BLX_REG (code, ARMREG_R1);
730 g_assert (code - buf == 16);
733 emit_bytes (acfg, buf, code - buf);
735 * Only one offset is needed, since the second one would be equal to the
738 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 4);
739 //emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4 + 8);
740 #elif defined(TARGET_POWERPC)
747 g_assert (!acfg->use_bin_writer);
750 * PPC has no ip relative addressing, so we need to compute the address
751 * of the mscorlib got. That is slow and complex, so instead, we store it
752 * in the second got slot of every aot image. The caller already computed
753 * the address of its got and placed it into r30.
755 img_writer_emit_unset_mode (acfg->w);
756 /* Load mscorlib got address */
757 fprintf (acfg->fp, "%s 0, %d(30)\n", PPC_LD_OP, (int)sizeof (gpointer));
758 /* Load generic trampoline address */
759 fprintf (acfg->fp, "lis 11, %d@h\n", (int)(offset * sizeof (gpointer)));
760 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)(offset * sizeof (gpointer)));
761 fprintf (acfg->fp, "%s 11, 11, 0\n", PPC_LDX_OP);
762 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
763 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
765 fprintf (acfg->fp, "mtctr 11\n");
766 /* Load trampoline argument */
767 /* On ppc, we pass it normally to the generic trampoline */
768 fprintf (acfg->fp, "lis 11, %d@h\n", (int)((offset + 1) * sizeof (gpointer)));
769 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)((offset + 1) * sizeof (gpointer)));
770 fprintf (acfg->fp, "%s 0, 11, 0\n", PPC_LDX_OP);
771 /* Branch to generic trampoline */
772 fprintf (acfg->fp, "bctr\n");
774 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
775 *tramp_size = 10 * 4;
780 g_assert_not_reached ();
785 * arch_emit_unbox_trampoline:
787 * Emit code for the unbox trampoline for METHOD used in the full-aot case.
788 * CALL_TARGET is the symbol pointing to the native code of METHOD.
791 arch_emit_unbox_trampoline (MonoAotCompile *acfg, MonoMethod *method, MonoGenericSharingContext *gsctx, const char *call_target)
793 #if defined(TARGET_AMD64)
798 this_reg = mono_arch_get_this_arg_reg (mono_method_signature (method), gsctx, NULL);
800 amd64_alu_reg_imm (code, X86_ADD, this_reg, sizeof (MonoObject));
802 emit_bytes (acfg, buf, code - buf);
804 emit_byte (acfg, '\xe9');
805 emit_symbol_diff (acfg, call_target, ".", -4);
806 #elif defined(TARGET_ARM)
813 if (MONO_TYPE_ISSTRUCT (mono_method_signature (method)->ret))
816 ARM_ADD_REG_IMM8 (code, this_pos, this_pos, sizeof (MonoObject));
818 emit_bytes (acfg, buf, code - buf);
820 if (acfg->use_bin_writer) {
827 img_writer_emit_reloc (acfg->w, R_ARM_JUMP24, call_target, -8);
828 emit_bytes (acfg, buf, 4);
830 fprintf (acfg->fp, "\n\tb %s\n", call_target);
832 #elif defined(TARGET_POWERPC)
835 if (MONO_TYPE_ISSTRUCT (mono_method_signature (method)->ret))
838 g_assert (!acfg->use_bin_writer);
840 fprintf (acfg->fp, "\n\taddi %d, %d, %d\n", this_pos, this_pos, (int)sizeof (MonoObject));
841 fprintf (acfg->fp, "\n\tb %s\n", call_target);
843 g_assert_not_reached ();
848 * arch_emit_static_rgctx_trampoline:
850 * Emit code for a static rgctx trampoline. OFFSET is the offset of the first of
851 * two GOT slots which contain the rgctx argument, and the method to jump to.
852 * TRAMP_SIZE is set to the size of the emitted trampoline.
853 * These kinds of trampolines cannot be enumerated statically, since there could
854 * be one trampoline per method instantiation, so we emit the same code for all
855 * trampolines, and parameterize them using two GOT slots.
858 arch_emit_static_rgctx_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
860 #if defined(TARGET_AMD64)
861 /* This should be exactly 13 bytes long */
864 /* mov <OFFSET>(%rip), %r10 */
865 emit_byte (acfg, '\x4d');
866 emit_byte (acfg, '\x8b');
867 emit_byte (acfg, '\x15');
868 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
870 /* jmp *<offset>(%rip) */
871 emit_byte (acfg, '\xff');
872 emit_byte (acfg, '\x25');
873 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4);
874 #elif defined(TARGET_ARM)
878 /* This should be exactly 24 bytes long */
881 /* Load rgctx value */
882 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 8);
883 ARM_LDR_REG_REG (code, MONO_ARCH_RGCTX_REG, ARMREG_PC, ARMREG_R1);
884 /* Load branch addr + branch */
885 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 4);
886 ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_R1);
888 g_assert (code - buf == 16);
891 emit_bytes (acfg, buf, code - buf);
892 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 8);
893 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4 + 4);
894 #elif defined(TARGET_POWERPC)
901 g_assert (!acfg->use_bin_writer);
904 * PPC has no ip relative addressing, so we need to compute the address
905 * of the mscorlib got. That is slow and complex, so instead, we store it
906 * in the second got slot of every aot image. The caller already computed
907 * the address of its got and placed it into r30.
909 img_writer_emit_unset_mode (acfg->w);
910 /* Load mscorlib got address */
911 fprintf (acfg->fp, "%s 0, %d(30)\n", PPC_LD_OP, (int)sizeof (gpointer));
913 fprintf (acfg->fp, "lis 11, %d@h\n", (int)(offset * sizeof (gpointer)));
914 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)(offset * sizeof (gpointer)));
915 fprintf (acfg->fp, "%s %d, 11, 0\n", PPC_LDX_OP, MONO_ARCH_RGCTX_REG);
916 /* Load target address */
917 fprintf (acfg->fp, "lis 11, %d@h\n", (int)((offset + 1) * sizeof (gpointer)));
918 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)((offset + 1) * sizeof (gpointer)));
919 fprintf (acfg->fp, "%s 11, 11, 0\n", PPC_LDX_OP);
920 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
921 fprintf (acfg->fp, "%s 2, %d(11)\n", PPC_LD_OP, (int)sizeof (gpointer));
922 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
924 fprintf (acfg->fp, "mtctr 11\n");
925 /* Branch to the target address */
926 fprintf (acfg->fp, "bctr\n");
928 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
929 *tramp_size = 11 * 4;
935 g_assert_not_reached ();
940 * arch_emit_imt_thunk:
942 * Emit an IMT thunk usable in full-aot mode. The thunk uses 1 got slot which
943 * points to an array of pointer pairs. The pairs of the form [key, ptr], where
944 * key is the IMT key, and ptr holds the address of a memory location holding
945 * the address to branch to if the IMT arg matches the key. The array is
946 * terminated by a pair whose key is NULL, and whose ptr is the address of the
948 * TRAMP_SIZE is set to the size of the emitted trampoline.
951 arch_emit_imt_thunk (MonoAotCompile *acfg, int offset, int *tramp_size)
953 #if defined(TARGET_AMD64)
957 code = buf = g_malloc (256);
959 /* FIXME: Optimize this, i.e. use binary search etc. */
960 /* Maybe move the body into a separate function (slower, but much smaller) */
962 /* R10 is a free register */
965 amd64_alu_membase_imm (code, X86_CMP, AMD64_R10, 0, 0);
967 amd64_branch8 (code, X86_CC_Z, FALSE, 0);
970 amd64_alu_membase_reg (code, X86_CMP, AMD64_R10, 0, MONO_ARCH_IMT_REG);
972 amd64_branch8 (code, X86_CC_Z, FALSE, 0);
975 amd64_alu_reg_imm (code, X86_ADD, AMD64_R10, 2 * sizeof (gpointer));
976 amd64_jump_code (code, labels [0]);
979 mono_amd64_patch (labels [2], code);
980 amd64_mov_reg_membase (code, AMD64_R10, AMD64_R10, sizeof (gpointer), 8);
981 amd64_jump_membase (code, AMD64_R10, 0);
985 mono_amd64_patch (labels [1], code);
986 x86_breakpoint (code);
988 /* mov <OFFSET>(%rip), %r10 */
989 emit_byte (acfg, '\x4d');
990 emit_byte (acfg, '\x8b');
991 emit_byte (acfg, '\x15');
992 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
994 emit_bytes (acfg, buf, code - buf);
996 *tramp_size = code - buf + 7;
997 #elif defined(TARGET_ARM)
999 guint8 *code, *code2, *labels [16];
1003 /* The IMT method is in v5 */
1005 /* Only IP is available, but we need at least two free registers */
1006 ARM_PUSH1 (code, ARMREG_R1);
1008 /* Load the parameter from the GOT */
1009 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 0);
1010 ARM_LDR_REG_REG (code, ARMREG_IP, ARMREG_PC, ARMREG_IP);
1013 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_IP, 0);
1014 ARM_CMP_REG_REG (code, ARMREG_R1, ARMREG_V5);
1016 ARM_B_COND (code, ARMCOND_EQ, 0);
1018 /* End-of-loop check */
1019 ARM_CMP_REG_IMM (code, ARMREG_R1, 0, 0);
1021 ARM_B_COND (code, ARMCOND_EQ, 0);
1024 ARM_ADD_REG_IMM8 (code, ARMREG_IP, ARMREG_IP, sizeof (gpointer) * 2);
1027 arm_patch (labels [4], labels [1]);
1030 arm_patch (labels [2], code);
1031 ARM_POP1 (code, ARMREG_R1);
1032 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_IP, 4);
1033 ARM_LDR_IMM (code, ARMREG_PC, ARMREG_IP, 0);
1036 arm_patch (labels [3], code);
1041 ARM_LDR_IMM (code2, ARMREG_IP, ARMREG_PC, (code - (labels [0] + 8)));
1043 emit_bytes (acfg, buf, code - buf);
1044 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) + (code - (labels [0] + 8)) - 4);
1046 *tramp_size = code - buf + 4;
1047 #elif defined(TARGET_POWERPC)
1049 guint8 *code, *labels [16];
1053 /* Load the mscorlib got address */
1054 ppc_ldptr (code, ppc_r11, sizeof (gpointer), ppc_r30);
1055 /* Load the parameter from the GOT */
1056 ppc_load (code, ppc_r0, offset * sizeof (gpointer));
1057 ppc_ldptr_indexed (code, ppc_r11, ppc_r11, ppc_r0);
1059 /* Load and check key */
1061 ppc_ldptr (code, ppc_r0, 0, ppc_r11);
1062 ppc_cmp (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, MONO_ARCH_IMT_REG);
1064 ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0);
1066 /* End-of-loop check */
1067 ppc_cmpi (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, 0);
1069 ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0);
1072 ppc_addi (code, ppc_r11, ppc_r11, 2 * sizeof (gpointer));
1075 mono_ppc_patch (labels [4], labels [1]);
1078 mono_ppc_patch (labels [2], code);
1079 ppc_ldptr (code, ppc_r11, sizeof (gpointer), ppc_r11);
1080 /* r11 now contains the value of the vtable slot */
1081 /* this is not a function descriptor on ppc64 */
1082 ppc_ldptr (code, ppc_r11, 0, ppc_r11);
1083 ppc_mtctr (code, ppc_r11);
1084 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
1087 mono_ppc_patch (labels [3], code);
1091 *tramp_size = code - buf;
1093 emit_bytes (acfg, buf, code - buf);
1095 g_assert_not_reached ();
1100 * arch_get_cie_program:
1102 * Get the unwind bytecode for the DWARF CIE.
1105 arch_get_cie_program (void)
1110 mono_add_unwind_op_def_cfa (l, (guint8*)NULL, (guint8*)NULL, AMD64_RSP, 8);
1111 mono_add_unwind_op_offset (l, (guint8*)NULL, (guint8*)NULL, AMD64_RIP, -8);
1114 #elif defined(TARGET_POWERPC)
1117 mono_add_unwind_op_def_cfa (l, (guint8*)NULL, (guint8*)NULL, ppc_r1, 0);
1125 /* END OF ARCH SPECIFIC CODE */
1128 mono_get_field_token (MonoClassField *field)
1130 MonoClass *klass = field->parent;
1133 for (i = 0; i < klass->field.count; ++i) {
1134 if (field == &klass->fields [i])
1135 return MONO_TOKEN_FIELD_DEF | (klass->field.first + 1 + i);
1138 g_assert_not_reached ();
1143 encode_value (gint32 value, guint8 *buf, guint8 **endbuf)
1147 //printf ("ENCODE: %d 0x%x.\n", value, value);
1150 * Same encoding as the one used in the metadata, extended to handle values
1151 * greater than 0x1fffffff.
1153 if ((value >= 0) && (value <= 127))
1155 else if ((value >= 0) && (value <= 16383)) {
1156 p [0] = 0x80 | (value >> 8);
1157 p [1] = value & 0xff;
1159 } else if ((value >= 0) && (value <= 0x1fffffff)) {
1160 p [0] = (value >> 24) | 0xc0;
1161 p [1] = (value >> 16) & 0xff;
1162 p [2] = (value >> 8) & 0xff;
1163 p [3] = value & 0xff;
1168 p [1] = (value >> 24) & 0xff;
1169 p [2] = (value >> 16) & 0xff;
1170 p [3] = (value >> 8) & 0xff;
1171 p [4] = value & 0xff;
1179 get_image_index (MonoAotCompile *cfg, MonoImage *image)
1183 index = GPOINTER_TO_UINT (g_hash_table_lookup (cfg->image_hash, image));
1187 index = g_hash_table_size (cfg->image_hash);
1188 g_hash_table_insert (cfg->image_hash, image, GUINT_TO_POINTER (index + 1));
1189 g_ptr_array_add (cfg->image_table, image);
1195 find_typespec_for_class (MonoAotCompile *acfg, MonoClass *klass)
1198 MonoClass *k = NULL;
1200 /* FIXME: Search referenced images as well */
1201 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
1202 k = mono_class_get_full (acfg->image, MONO_TOKEN_TYPE_SPEC | (i + 1), NULL);
1207 if (i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows)
1208 return MONO_TOKEN_TYPE_SPEC | (i + 1);
1214 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf);
1219 * Encode a reference to KLASS. We use our home-grown encoding instead of the
1220 * standard metadata encoding.
1223 encode_klass_ref (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf)
1227 if (klass->generic_class) {
1229 g_assert (klass->type_token);
1231 /* Find a typespec for a class if possible */
1232 token = find_typespec_for_class (acfg, klass);
1234 encode_value (token, p, &p);
1235 encode_value (get_image_index (acfg, acfg->image), p, &p);
1237 MonoClass *gclass = klass->generic_class->container_class;
1238 MonoGenericInst *inst = klass->generic_class->context.class_inst;
1241 /* Encode it ourselves */
1243 encode_value (MONO_TOKEN_TYPE_SPEC, p, &p);
1244 encode_value (MONO_TYPE_GENERICINST, p, &p);
1245 encode_klass_ref (acfg, gclass, p, &p);
1246 encode_value (inst->type_argc, p, &p);
1247 for (i = 0; i < inst->type_argc; ++i)
1248 encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
1250 } else if (klass->type_token) {
1251 g_assert (mono_metadata_token_code (klass->type_token) == MONO_TOKEN_TYPE_DEF);
1252 encode_value (klass->type_token - MONO_TOKEN_TYPE_DEF, p, &p);
1253 encode_value (get_image_index (acfg, klass->image), p, &p);
1254 } else if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) {
1255 MonoGenericContainer *container = mono_type_get_generic_param_owner (&klass->byval_arg);
1256 g_assert (container);
1259 encode_value (MONO_TOKEN_TYPE_SPEC, p, &p);
1260 encode_value (klass->byval_arg.type, p, &p);
1262 encode_value (mono_type_get_generic_param_num (&klass->byval_arg), p, &p);
1264 encode_value (container->is_method, p, &p);
1265 if (container->is_method)
1266 encode_method_ref (acfg, container->owner.method, p, &p);
1268 encode_klass_ref (acfg, container->owner.klass, p, &p);
1271 g_assert (klass->rank > 0);
1272 encode_value (MONO_TOKEN_TYPE_DEF, p, &p);
1273 encode_value (get_image_index (acfg, klass->image), p, &p);
1274 encode_value (klass->rank, p, &p);
1275 encode_klass_ref (acfg, klass->element_class, p, &p);
1281 encode_field_info (MonoAotCompile *cfg, MonoClassField *field, guint8 *buf, guint8 **endbuf)
1283 guint32 token = mono_get_field_token (field);
1286 encode_klass_ref (cfg, field->parent, p, &p);
1287 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_FIELD_DEF);
1288 encode_value (token - MONO_TOKEN_FIELD_DEF, p, &p);
1293 encode_generic_context (MonoAotCompile *acfg, MonoGenericContext *context, guint8 *buf, guint8 **endbuf)
1297 MonoGenericInst *inst;
1299 /* Encode the context */
1300 inst = context->class_inst;
1301 encode_value (inst ? 1 : 0, p, &p);
1303 encode_value (inst->type_argc, p, &p);
1304 for (i = 0; i < inst->type_argc; ++i)
1305 encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
1307 inst = context->method_inst;
1308 encode_value (inst ? 1 : 0, p, &p);
1310 encode_value (inst->type_argc, p, &p);
1311 for (i = 0; i < inst->type_argc; ++i)
1312 encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
1318 #define MAX_IMAGE_INDEX 250
1321 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf)
1323 guint32 image_index = get_image_index (acfg, method->klass->image);
1324 guint32 token = method->token;
1325 MonoJumpInfoToken *ji;
1330 * The encoding for most methods is as follows:
1331 * - image index encoded as a leb128
1332 * - token index encoded as a leb128
1333 * Values of image index >= MONO_AOT_METHODREF_MIN are used to mark additional
1334 * types of method encodings.
1337 g_assert (image_index < MONO_AOT_METHODREF_MIN);
1339 /* Mark methods which can't use aot trampolines because they need the further
1340 * processing in mono_magic_trampoline () which requires a MonoMethod*.
1342 if ((method->is_generic && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) ||
1343 (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED))
1344 encode_value ((MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE << 24), p, &p);
1347 * Some wrapper methods are shared using their signature, encode their
1348 * stringified signature instead.
1349 * FIXME: Optimize disk usage
1352 if (method->wrapper_type) {
1353 if (method->wrapper_type == MONO_WRAPPER_RUNTIME_INVOKE) {
1354 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1355 if (mono_marshal_method_from_wrapper (method) != method) {
1356 /* Direct wrapper, encode it normally */
1358 name = g_strdup_printf ("(wrapper runtime-invoke):%s (%s)", method->name, tmpsig);
1361 } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
1362 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1363 name = g_strdup_printf ("(wrapper delegate-invoke):%s (%s)", method->name, tmpsig);
1365 } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_BEGIN_INVOKE) {
1366 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1367 name = g_strdup_printf ("(wrapper delegate-begin-invoke):%s (%s)", method->name, tmpsig);
1369 } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_END_INVOKE) {
1370 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1371 name = g_strdup_printf ("(wrapper delegate-end-invoke):%s (%s)", method->name, tmpsig);
1377 encode_value ((MONO_AOT_METHODREF_WRAPPER_NAME << 24), p, &p);
1378 strcpy ((char*)p, name);
1379 p += strlen (name) + 1;
1381 } else if (method->wrapper_type) {
1382 encode_value ((MONO_AOT_METHODREF_WRAPPER << 24), p, &p);
1384 encode_value (method->wrapper_type, p, &p);
1386 switch (method->wrapper_type) {
1387 case MONO_WRAPPER_REMOTING_INVOKE:
1388 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
1389 case MONO_WRAPPER_XDOMAIN_INVOKE: {
1392 m = mono_marshal_method_from_wrapper (method);
1394 encode_method_ref (acfg, m, p, &p);
1397 case MONO_WRAPPER_PROXY_ISINST:
1398 case MONO_WRAPPER_LDFLD:
1399 case MONO_WRAPPER_LDFLDA:
1400 case MONO_WRAPPER_STFLD:
1401 case MONO_WRAPPER_ISINST: {
1402 MonoClass *proxy_class = (MonoClass*)mono_marshal_method_from_wrapper (method);
1403 encode_klass_ref (acfg, proxy_class, p, &p);
1406 case MONO_WRAPPER_LDFLD_REMOTE:
1407 case MONO_WRAPPER_STFLD_REMOTE:
1409 case MONO_WRAPPER_ALLOC: {
1410 int alloc_type = mono_gc_get_managed_allocator_type (method);
1411 g_assert (alloc_type != -1);
1412 encode_value (alloc_type, p, &p);
1415 case MONO_WRAPPER_STELEMREF:
1417 case MONO_WRAPPER_UNKNOWN:
1418 if (strcmp (method->name, "FastMonitorEnter") == 0)
1419 encode_value (MONO_AOT_WRAPPER_MONO_ENTER, p, &p);
1420 else if (strcmp (method->name, "FastMonitorExit") == 0)
1421 encode_value (MONO_AOT_WRAPPER_MONO_EXIT, p, &p);
1423 g_assert_not_reached ();
1425 case MONO_WRAPPER_SYNCHRONIZED:
1426 case MONO_WRAPPER_MANAGED_TO_NATIVE:
1427 case MONO_WRAPPER_RUNTIME_INVOKE: {
1430 m = mono_marshal_method_from_wrapper (method);
1432 g_assert (m != method);
1433 encode_method_ref (acfg, m, p, &p);
1437 g_assert_not_reached ();
1439 } else if (mono_method_signature (method)->is_inflated) {
1441 * This is a generic method, find the original token which referenced it and
1443 * Obtain the token from information recorded by the JIT.
1445 ji = g_hash_table_lookup (acfg->token_info_hash, method);
1447 image_index = get_image_index (acfg, ji->image);
1448 g_assert (image_index < MAX_IMAGE_INDEX);
1451 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
1452 encode_value (image_index, p, &p);
1453 encode_value (token, p, &p);
1455 MonoMethod *declaring;
1456 MonoGenericContext *context = mono_method_get_context (method);
1458 g_assert (method->is_inflated);
1459 declaring = ((MonoMethodInflated*)method)->declaring;
1462 * This might be a non-generic method of a generic instance, which
1463 * doesn't have a token since the reference is generated by the JIT
1464 * like Nullable:Box/Unbox, or by generic sharing.
1467 encode_value ((MONO_AOT_METHODREF_GINST << 24), p, &p);
1468 /* Encode the klass */
1469 encode_klass_ref (acfg, method->klass, p, &p);
1470 /* Encode the method */
1471 image_index = get_image_index (acfg, method->klass->image);
1472 g_assert (image_index < MAX_IMAGE_INDEX);
1473 g_assert (declaring->token);
1474 token = declaring->token;
1475 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
1476 encode_value (image_index, p, &p);
1477 encode_value (token, p, &p);
1478 encode_generic_context (acfg, context, p, &p);
1480 } else if (token == 0) {
1481 /* This might be a method of a constructed type like int[,].Set */
1482 /* Obtain the token from information recorded by the JIT */
1483 ji = g_hash_table_lookup (acfg->token_info_hash, method);
1485 image_index = get_image_index (acfg, ji->image);
1486 g_assert (image_index < MAX_IMAGE_INDEX);
1489 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
1490 encode_value (image_index, p, &p);
1491 encode_value (token, p, &p);
1494 g_assert (method->klass->rank);
1496 /* Encode directly */
1497 encode_value ((MONO_AOT_METHODREF_ARRAY << 24), p, &p);
1498 encode_klass_ref (acfg, method->klass, p, &p);
1499 if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank)
1500 encode_value (0, p, &p);
1501 else if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank * 2)
1502 encode_value (1, p, &p);
1503 else if (!strcmp (method->name, "Get"))
1504 encode_value (2, p, &p);
1505 else if (!strcmp (method->name, "Address"))
1506 encode_value (3, p, &p);
1507 else if (!strcmp (method->name, "Set"))
1508 encode_value (4, p, &p);
1510 g_assert_not_reached ();
1513 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
1514 encode_value ((image_index << 24) | mono_metadata_token_index (token), p, &p);
1520 compare_patches (gconstpointer a, gconstpointer b)
1524 i = (*(MonoJumpInfo**)a)->ip.i;
1525 j = (*(MonoJumpInfo**)b)->ip.i;
1539 * Return whenever PATCH_INFO refers to a direct call, and thus requires a
1542 static inline gboolean
1543 is_plt_patch (MonoJumpInfo *patch_info)
1545 switch (patch_info->type) {
1546 case MONO_PATCH_INFO_METHOD:
1547 case MONO_PATCH_INFO_INTERNAL_METHOD:
1548 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
1549 case MONO_PATCH_INFO_ICALL_ADDR:
1550 case MONO_PATCH_INFO_CLASS_INIT:
1551 case MONO_PATCH_INFO_RGCTX_FETCH:
1552 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
1553 case MONO_PATCH_INFO_MONITOR_ENTER:
1554 case MONO_PATCH_INFO_MONITOR_EXIT:
1562 get_plt_offset (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
1566 if (is_plt_patch (patch_info)) {
1567 int idx = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_plt_offset, patch_info));
1569 if (patch_info->type == MONO_PATCH_INFO_METHOD && (patch_info->data.method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)) {
1571 * Allocate a separate PLT slot for each such patch, since some plt
1572 * entries will refer to the method itself, and some will refer to
1581 MonoJumpInfo *new_ji = mono_patch_info_dup_mp (acfg->mempool, patch_info);
1583 res = acfg->plt_offset;
1584 g_hash_table_insert (acfg->plt_offset_to_patch, GUINT_TO_POINTER (res), new_ji);
1585 g_hash_table_insert (acfg->patch_to_plt_offset, new_ji, GUINT_TO_POINTER (res));
1586 acfg->plt_offset ++;
1596 * Returns the offset of the GOT slot where the runtime object resulting from resolving
1597 * JI could be found if it exists, otherwise allocates a new one.
1600 get_got_offset (MonoAotCompile *acfg, MonoJumpInfo *ji)
1604 got_offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_got_offset, ji));
1606 return got_offset - 1;
1608 got_offset = acfg->got_offset;
1609 acfg->got_offset ++;
1611 acfg->stats.got_slots ++;
1612 acfg->stats.got_slot_types [ji->type] ++;
1614 g_hash_table_insert (acfg->patch_to_got_offset, ji, GUINT_TO_POINTER (got_offset + 1));
1615 g_ptr_array_add (acfg->got_patches, ji);
1620 /* Add a method to the list of methods which need to be emitted */
1622 add_method_with_index (MonoAotCompile *acfg, MonoMethod *method, int index, gboolean extra)
1625 if (!g_hash_table_lookup (acfg->method_indexes, method)) {
1626 g_ptr_array_add (acfg->methods, method);
1627 g_hash_table_insert (acfg->method_indexes, method, GUINT_TO_POINTER (index + 1));
1628 acfg->nmethods = acfg->methods->len + 1;
1631 if (method->wrapper_type || extra)
1632 g_ptr_array_add (acfg->extra_methods, method);
1636 get_method_index (MonoAotCompile *acfg, MonoMethod *method)
1638 int index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
1646 add_method_full (MonoAotCompile *acfg, MonoMethod *method, gboolean extra)
1650 index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
1654 index = acfg->method_index;
1655 add_method_with_index (acfg, method, index, extra);
1657 /* FIXME: Fix quadratic behavior */
1658 acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (index));
1660 acfg->method_index ++;
1666 add_method (MonoAotCompile *acfg, MonoMethod *method)
1668 return add_method_full (acfg, method, FALSE);
1672 add_extra_method (MonoAotCompile *acfg, MonoMethod *method)
1674 add_method_full (acfg, method, TRUE);
1678 add_jit_icall_wrapper (gpointer key, gpointer value, gpointer user_data)
1680 MonoAotCompile *acfg = user_data;
1681 MonoJitICallInfo *callinfo = value;
1682 MonoMethod *wrapper;
1688 name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
1689 wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_for_pending_exc);
1692 add_method (acfg, wrapper);
1696 get_runtime_invoke_sig (MonoMethodSignature *sig)
1698 MonoMethodBuilder *mb;
1701 mb = mono_mb_new (mono_defaults.object_class, "FOO", MONO_WRAPPER_NONE);
1702 m = mono_mb_create_method (mb, sig, 16);
1703 return mono_marshal_get_runtime_invoke (m, FALSE);
1707 add_wrappers (MonoAotCompile *acfg)
1709 MonoMethod *method, *m;
1711 MonoMethodSignature *sig, *csig;
1715 * FIXME: Instead of AOTing all the wrappers, it might be better to redesign them
1716 * so there is only one wrapper of a given type, or inlining their contents into their
1721 * FIXME: This depends on the fact that different wrappers have different
1725 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
1727 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
1728 gboolean skip = FALSE;
1730 method = mono_get_method (acfg->image, token, NULL);
1732 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1733 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
1734 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
1737 if (method->is_generic || method->klass->generic_container)
1740 /* Skip methods which can not be handled by get_runtime_invoke () */
1741 sig = mono_method_signature (method);
1742 if ((sig->ret->type == MONO_TYPE_PTR) ||
1743 (sig->ret->type == MONO_TYPE_TYPEDBYREF))
1746 for (j = 0; j < sig->param_count; j++) {
1747 if (sig->params [j]->type == MONO_TYPE_TYPEDBYREF)
1752 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
1755 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
1756 #ifdef MONO_ARCH_HAVE_TLS_GET
1757 MonoMethodDesc *desc;
1758 MonoMethod *orig_method;
1762 /* Runtime invoke wrappers */
1764 /* void runtime-invoke () [.cctor] */
1765 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
1766 csig->ret = &mono_defaults.void_class->byval_arg;
1767 add_method (acfg, get_runtime_invoke_sig (csig));
1769 /* void runtime-invoke () [Finalize] */
1770 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
1772 csig->ret = &mono_defaults.void_class->byval_arg;
1773 add_method (acfg, get_runtime_invoke_sig (csig));
1775 /* void runtime-invoke (string) [exception ctor] */
1776 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
1778 csig->ret = &mono_defaults.void_class->byval_arg;
1779 csig->params [0] = &mono_defaults.string_class->byval_arg;
1780 add_method (acfg, get_runtime_invoke_sig (csig));
1782 /* void runtime-invoke (string, string) [exception ctor] */
1783 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
1785 csig->ret = &mono_defaults.void_class->byval_arg;
1786 csig->params [0] = &mono_defaults.string_class->byval_arg;
1787 csig->params [1] = &mono_defaults.string_class->byval_arg;
1788 add_method (acfg, get_runtime_invoke_sig (csig));
1790 /* string runtime-invoke () [Exception.ToString ()] */
1791 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
1793 csig->ret = &mono_defaults.string_class->byval_arg;
1794 add_method (acfg, get_runtime_invoke_sig (csig));
1796 /* void runtime-invoke (string, Exception) [exception ctor] */
1797 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
1799 csig->ret = &mono_defaults.void_class->byval_arg;
1800 csig->params [0] = &mono_defaults.string_class->byval_arg;
1801 csig->params [1] = &mono_defaults.exception_class->byval_arg;
1802 add_method (acfg, get_runtime_invoke_sig (csig));
1804 /* Assembly runtime-invoke (string, bool) [DoAssemblyResolve] */
1805 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
1807 csig->ret = &(mono_class_from_name (
1808 mono_defaults.corlib, "System.Reflection", "Assembly"))->byval_arg;
1809 csig->params [0] = &mono_defaults.string_class->byval_arg;
1810 csig->params [1] = &mono_defaults.boolean_class->byval_arg;
1811 add_method (acfg, get_runtime_invoke_sig (csig));
1813 /* runtime-invoke used by finalizers */
1814 add_method (acfg, mono_marshal_get_runtime_invoke (mono_class_get_method_from_name_flags (mono_defaults.object_class, "Finalize", 0, 0), TRUE));
1816 /* JIT icall wrappers */
1817 /* FIXME: locking */
1818 g_hash_table_foreach (mono_get_jit_icall_info (), add_jit_icall_wrapper, acfg);
1821 add_method (acfg, mono_marshal_get_stelemref ());
1823 #ifdef MONO_ARCH_HAVE_TLS_GET
1824 /* Managed Allocators */
1825 nallocators = mono_gc_get_managed_allocator_types ();
1826 for (i = 0; i < nallocators; ++i) {
1827 m = mono_gc_get_managed_allocator_by_type (i);
1829 add_method (acfg, m);
1832 /* Monitor Enter/Exit */
1833 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
1834 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
1835 g_assert (orig_method);
1836 mono_method_desc_free (desc);
1837 method = mono_monitor_get_fast_path (orig_method);
1839 add_method (acfg, method);
1841 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
1842 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
1843 g_assert (orig_method);
1844 mono_method_desc_free (desc);
1845 method = mono_monitor_get_fast_path (orig_method);
1847 add_method (acfg, method);
1852 * remoting-invoke-with-check wrappers are very frequent, so avoid emitting them,
1853 * we use the original method instead at runtime.
1854 * Since full-aot doesn't support remoting, this is not a problem.
1857 /* remoting-invoke wrappers */
1858 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
1859 MonoMethodSignature *sig;
1861 token = MONO_TOKEN_METHOD_DEF | (i + 1);
1862 method = mono_get_method (acfg->image, token, NULL);
1864 sig = mono_method_signature (method);
1866 if (sig->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class)) {
1867 m = mono_marshal_get_remoting_invoke_with_check (method);
1869 add_method (acfg, m);
1874 /* delegate-invoke wrappers */
1875 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
1878 token = MONO_TOKEN_TYPE_DEF | (i + 1);
1879 klass = mono_class_get (acfg->image, token);
1881 if (klass->delegate && klass != mono_defaults.delegate_class && klass != mono_defaults.multicastdelegate_class && !klass->generic_container) {
1882 method = mono_get_delegate_invoke (klass);
1884 m = mono_marshal_get_delegate_invoke (method, NULL);
1886 add_method (acfg, m);
1888 method = mono_class_get_method_from_name_flags (klass, "BeginInvoke", -1, 0);
1889 add_method (acfg, mono_marshal_get_delegate_begin_invoke (method));
1891 method = mono_class_get_method_from_name_flags (klass, "EndInvoke", -1, 0);
1892 add_method (acfg, mono_marshal_get_delegate_end_invoke (method));
1896 /* Synchronized wrappers */
1897 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
1898 token = MONO_TOKEN_METHOD_DEF | (i + 1);
1899 method = mono_get_method (acfg->image, token, NULL);
1901 if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
1902 add_method (acfg, mono_marshal_get_synchronized_wrapper (method));
1905 /* pinvoke wrappers */
1906 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
1908 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
1910 method = mono_get_method (acfg->image, token, NULL);
1912 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1913 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
1914 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
1918 /* StructureToPtr/PtrToStructure wrappers */
1919 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
1922 token = MONO_TOKEN_TYPE_DEF | (i + 1);
1923 klass = mono_class_get (acfg->image, token);
1925 if (klass->valuetype && !klass->generic_container && ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)) {
1926 gboolean can_marshal = TRUE;
1927 gpointer iter = NULL;
1928 MonoClassField *field;
1930 /* Only allow a few field types to avoid asserts in the marshalling code */
1931 while ((field = mono_class_get_fields (klass, &iter))) {
1932 switch (field->type->type) {
1937 case MONO_TYPE_BOOLEAN:
1940 case MONO_TYPE_CHAR:
1948 can_marshal = FALSE;
1954 add_method (acfg, mono_marshal_get_struct_to_ptr (klass));
1955 add_method (acfg, mono_marshal_get_ptr_to_struct (klass));
1962 has_type_vars (MonoClass *klass)
1964 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
1967 return has_type_vars (klass->element_class);
1968 if (klass->generic_class) {
1969 MonoGenericContext *context = &klass->generic_class->context;
1970 if (context->class_inst) {
1973 for (i = 0; i < context->class_inst->type_argc; ++i)
1974 if (has_type_vars (mono_class_from_mono_type (context->class_inst->type_argv [i])))
1982 method_has_type_vars (MonoMethod *method)
1984 if (has_type_vars (method->klass))
1987 if (method->is_inflated) {
1988 MonoGenericContext *context = mono_method_get_context (method);
1989 if (context->method_inst) {
1992 for (i = 0; i < context->method_inst->type_argc; ++i)
1993 if (has_type_vars (mono_class_from_mono_type (context->method_inst->type_argv [i])))
2001 * add_generic_class:
2003 * Add all methods of a generic class.
2006 add_generic_class (MonoAotCompile *acfg, MonoClass *klass)
2011 mono_class_init (klass);
2013 if (klass->generic_class && klass->generic_class->context.class_inst->is_open)
2016 if (has_type_vars (klass))
2019 if (!klass->generic_class && !klass->rank)
2023 while ((method = mono_class_get_methods (klass, &iter))) {
2024 if (mono_method_is_generic_sharable_impl (method, FALSE))
2028 if (method->is_generic)
2033 * FIXME: Instances which are referenced by these methods are not added,
2034 * for example Array.Resize<int> for List<int>.Add ().
2036 add_extra_method (acfg, method);
2040 * For ICollection<T>, where T is a vtype, add instances of the helper methods
2041 * in Array, since a T[] could be cast to ICollection<T>.
2043 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") &&
2044 (!strcmp(klass->name, "ICollection`1") || !strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IList`1") || !strcmp (klass->name, "IEnumerator`1")) &&
2045 MONO_TYPE_ISSTRUCT (klass->generic_class->context.class_inst->type_argv [0])) {
2046 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
2047 MonoClass *array_class = mono_bounded_array_class_get (tclass, 1, FALSE);
2051 if (!strcmp (klass->name, "IEnumerator`1"))
2052 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, "IEnumerable`1");
2054 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
2056 /* Add the T[]/InternalEnumerator class */
2057 if (!strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IEnumerator`1")) {
2061 while ((nclass = mono_class_get_nested_types (array_class->parent, &iter))) {
2062 if (!strcmp (nclass->name, "InternalEnumerator`1"))
2066 nclass = mono_class_inflate_generic_class (nclass, mono_generic_class_get_context (klass->generic_class));
2067 add_generic_class (acfg, nclass);
2071 while ((method = mono_class_get_methods (array_class, &iter))) {
2072 if (strstr (method->name, name_prefix))
2073 add_extra_method (acfg, method);
2076 g_free (name_prefix);
2081 * add_generic_instances:
2083 * Add instances referenced by the METHODSPEC/TYPESPEC table.
2086 add_generic_instances (MonoAotCompile *acfg)
2091 MonoMethodHeader *header;
2092 MonoMethodSignature *sig;
2093 MonoGenericContext *context;
2095 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHODSPEC].rows; ++i) {
2096 token = MONO_TOKEN_METHOD_SPEC | (i + 1);
2097 method = mono_get_method (acfg->image, token, NULL);
2099 context = mono_method_get_context (method);
2100 if (context && ((context->class_inst && context->class_inst->is_open) ||
2101 (context->method_inst && context->method_inst->is_open)))
2104 if (method->klass->image != acfg->image)
2107 if (mono_method_is_generic_sharable_impl (method, FALSE))
2111 add_extra_method (acfg, method);
2114 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
2117 token = MONO_TOKEN_TYPE_SPEC | (i + 1);
2119 klass = mono_class_get (acfg->image, token);
2120 if (!klass || klass->rank)
2123 add_generic_class (acfg, klass);
2126 /* Add types of args/locals */
2127 for (i = 0; i < acfg->methods->len; ++i) {
2130 method = g_ptr_array_index (acfg->methods, i);
2132 sig = mono_method_signature (method);
2135 for (j = 0; j < sig->param_count; ++j)
2136 if (sig->params [j]->type == MONO_TYPE_GENERICINST)
2137 add_generic_class (acfg, mono_class_from_mono_type (sig->params [j]));
2140 header = mono_method_get_header (method);
2143 for (j = 0; j < header->num_locals; ++j)
2144 if (header->locals [j]->type == MONO_TYPE_GENERICINST)
2145 add_generic_class (acfg, mono_class_from_mono_type (header->locals [j]));
2149 if (acfg->image == mono_defaults.corlib) {
2150 /* Add GenericComparer<T> instances for primitive types for Enum.ToString () */
2151 MonoClass *klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericComparer`1");
2154 MonoGenericContext ctx;
2155 MonoType *args [16];
2157 memset (&ctx, 0, sizeof (ctx));
2159 args [0] = &mono_defaults.byte_class->byval_arg;
2160 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2161 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2163 args [0] = &mono_defaults.sbyte_class->byval_arg;
2164 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2165 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2167 args [0] = &mono_defaults.int16_class->byval_arg;
2168 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2169 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2171 args [0] = &mono_defaults.uint16_class->byval_arg;
2172 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2173 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2175 args [0] = &mono_defaults.int32_class->byval_arg;
2176 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2177 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2179 args [0] = &mono_defaults.uint32_class->byval_arg;
2180 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2181 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2183 args [0] = &mono_defaults.int64_class->byval_arg;
2184 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2185 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2187 args [0] = &mono_defaults.uint64_class->byval_arg;
2188 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2189 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2195 * is_direct_callable:
2197 * Return whenever the method identified by JI is directly callable without
2198 * going through the PLT.
2201 is_direct_callable (MonoAotCompile *acfg, MonoMethod *method, MonoJumpInfo *patch_info)
2203 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
2204 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
2206 gboolean direct_callable = TRUE;
2208 if (direct_callable && !(!callee_cfg->has_got_slots && (callee_cfg->method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)))
2209 direct_callable = FALSE;
2210 if ((callee_cfg->method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) && (!method || method->wrapper_type != MONO_WRAPPER_SYNCHRONIZED))
2211 // FIXME: Maybe call the wrapper directly ?
2212 direct_callable = FALSE;
2214 if (direct_callable)
2223 * emit_and_reloc_code:
2225 * Emit the native code in CODE, handling relocations along the way. If GOT_ONLY
2226 * is true, calls are made through the GOT too. This is used for emitting trampolines
2227 * in full-aot mode, since calls made from trampolines couldn't go through the PLT,
2228 * since trampolines are needed to make PTL work.
2231 emit_and_reloc_code (MonoAotCompile *acfg, MonoMethod *method, guint8 *code, guint32 code_len, MonoJumpInfo *relocs, gboolean got_only)
2233 int i, pindex, start_index, method_index;
2235 MonoJumpInfo *patch_info;
2236 MonoMethodHeader *header;
2237 gboolean skip, direct_call;
2239 char direct_call_target [128];
2242 header = mono_method_get_header (method);
2244 method_index = get_method_index (acfg, method);
2247 /* Collect and sort relocations */
2248 patches = g_ptr_array_new ();
2249 for (patch_info = relocs; patch_info; patch_info = patch_info->next)
2250 g_ptr_array_add (patches, patch_info);
2251 g_ptr_array_sort (patches, compare_patches);
2254 for (i = 0; i < code_len; i++) {
2256 for (pindex = start_index; pindex < patches->len; ++pindex) {
2257 patch_info = g_ptr_array_index (patches, pindex);
2258 if (patch_info->ip.i >= i)
2262 #ifdef MONO_ARCH_AOT_SUPPORTED
2264 if (patch_info && (patch_info->ip.i == i) && (pindex < patches->len)) {
2265 start_index = pindex;
2267 switch (patch_info->type) {
2268 case MONO_PATCH_INFO_NONE:
2270 case MONO_PATCH_INFO_GOT_OFFSET: {
2273 arch_emit_got_offset (acfg, code + i, &code_size);
2276 patch_info->type = MONO_PATCH_INFO_NONE;
2281 * If this patch is a call, try emitting a direct call instead of
2282 * through a PLT entry. This is possible if the called method is in
2283 * the same assembly and requires no initialization.
2285 direct_call = FALSE;
2286 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
2287 if (!got_only && is_direct_callable (acfg, method, patch_info)) {
2288 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
2289 //printf ("DIRECT: %s %s\n", method ? mono_method_full_name (method, TRUE) : "", mono_method_full_name (callee_cfg->method, TRUE));
2291 sprintf (direct_call_target, "%sm_%x", acfg->temp_prefix, get_method_index (acfg, callee_cfg->orig_method));
2292 patch_info->type = MONO_PATCH_INFO_NONE;
2293 acfg->stats.direct_calls ++;
2296 acfg->stats.all_calls ++;
2299 if (!got_only && !direct_call) {
2300 int plt_offset = get_plt_offset (acfg, patch_info);
2301 if (plt_offset != -1) {
2302 /* This patch has a PLT entry, so we must emit a call to the PLT entry */
2304 sprintf (direct_call_target, "%sp_%d", acfg->temp_prefix, plt_offset);
2306 /* Nullify the patch */
2307 patch_info->type = MONO_PATCH_INFO_NONE;
2314 arch_emit_direct_call (acfg, direct_call_target, &call_size);
2319 got_slot = get_got_offset (acfg, patch_info);
2321 arch_emit_got_access (acfg, code + i, got_slot, &code_size);
2328 #endif /* MONO_ARCH_AOT_SUPPORTED */
2331 /* Find next patch */
2333 for (pindex = start_index; pindex < patches->len; ++pindex) {
2334 patch_info = g_ptr_array_index (patches, pindex);
2335 if (patch_info->ip.i >= i)
2339 /* Try to emit multiple bytes at once */
2340 if (pindex < patches->len && patch_info->ip.i > i) {
2341 emit_bytes (acfg, code + i, patch_info->ip.i - i);
2342 i = patch_info->ip.i - 1;
2344 emit_bytes (acfg, code + i, 1);
2353 * Modify SYMBOL so it only includes characters permissible in symbols.
2356 sanitize_symbol (char *symbol)
2358 int i, len = strlen (symbol);
2360 for (i = 0; i < len; ++i)
2361 if (!isalnum (symbol [i]) && (symbol [i] != '_'))
2366 get_debug_sym (MonoMethod *method, const char *prefix, GHashTable *cache)
2368 char *name1, *name2, *cached;
2369 int i, j, len, count;
2371 name1 = mono_method_full_name (method, TRUE);
2372 len = strlen (name1);
2373 name2 = malloc (strlen (prefix) + len + 16);
2374 memcpy (name2, prefix, strlen (prefix));
2375 j = strlen (prefix);
2376 for (i = 0; i < len; ++i) {
2377 if (isalnum (name1 [i])) {
2378 name2 [j ++] = name1 [i];
2379 } else if (name1 [i] == ' ' && name1 [i + 1] == '(' && name1 [i + 2] == ')') {
2381 } else if (name1 [i] == ',' && name1 [i + 1] == ' ') {
2384 } else if (name1 [i] == '(' || name1 [i] == ')' || name1 [i] == '>') {
2393 while (g_hash_table_lookup (cache, name2)) {
2394 sprintf (name2 + j, "_%d", count);
2398 cached = g_strdup (name2);
2399 g_hash_table_insert (cache, cached, cached);
2405 emit_method_code (MonoAotCompile *acfg, MonoCompile *cfg)
2410 char *debug_sym = NULL;
2412 int func_alignment = AOT_FUNC_ALIGNMENT;
2413 MonoMethodHeader *header;
2415 method = cfg->orig_method;
2416 code = cfg->native_code;
2417 header = mono_method_get_header (method);
2419 method_index = get_method_index (acfg, method);
2421 /* Emit unbox trampoline */
2422 if (acfg->aot_opts.full_aot && cfg->orig_method->klass->valuetype && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
2423 char call_target [256];
2425 if (!method->wrapper_type && !method->is_inflated) {
2426 g_assert (method->token);
2427 sprintf (symbol, "ut_%d", mono_metadata_token_index (method->token) - 1);
2429 sprintf (symbol, "ut_e_%d", get_method_index (acfg, method));
2432 emit_section_change (acfg, ".text", 0);
2433 emit_global (acfg, symbol, TRUE);
2434 emit_label (acfg, symbol);
2436 sprintf (call_target, "%sm_%x", acfg->temp_prefix, method_index);
2438 arch_emit_unbox_trampoline (acfg, cfg->orig_method, cfg->generic_sharing_context, call_target);
2441 /* Make the labels local */
2442 sprintf (symbol, "%sm_%x", acfg->temp_prefix, method_index);
2444 emit_alignment (acfg, func_alignment);
2445 emit_label (acfg, symbol);
2447 if (acfg->aot_opts.write_symbols) {
2449 * Write a C style symbol for every method, this has two uses:
2450 * - it works on platforms where the dwarf debugging info is not
2452 * - it allows the setting of breakpoints of aot-ed methods.
2454 debug_sym = get_debug_sym (method, "", acfg->method_label_hash);
2456 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
2457 emit_local_symbol (acfg, debug_sym, symbol, TRUE);
2458 emit_label (acfg, debug_sym);
2461 if (cfg->verbose_level > 0)
2462 g_print ("Method %s emitted as %s\n", mono_method_full_name (method, TRUE), symbol);
2464 acfg->stats.code_size += cfg->code_len;
2466 acfg->cfgs [method_index]->got_offset = acfg->got_offset;
2468 emit_and_reloc_code (acfg, method, code, cfg->code_len, cfg->patch_info, FALSE);
2472 if (acfg->aot_opts.write_symbols) {
2473 emit_symbol_size (acfg, debug_sym, ".");
2477 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
2478 emit_label (acfg, symbol);
2484 * Encode PATCH_INFO into its disk representation.
2487 encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info, guint8 *buf, guint8 **endbuf)
2491 switch (patch_info->type) {
2492 case MONO_PATCH_INFO_NONE:
2494 case MONO_PATCH_INFO_IMAGE:
2495 encode_value (get_image_index (acfg, patch_info->data.image), p, &p);
2497 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
2499 case MONO_PATCH_INFO_METHOD_REL:
2500 encode_value ((gint)patch_info->data.offset, p, &p);
2502 case MONO_PATCH_INFO_SWITCH: {
2503 gpointer *table = (gpointer *)patch_info->data.table->table;
2506 encode_value (patch_info->data.table->table_size, p, &p);
2507 for (k = 0; k < patch_info->data.table->table_size; k++)
2508 encode_value ((int)(gssize)table [k], p, &p);
2511 case MONO_PATCH_INFO_METHODCONST:
2512 case MONO_PATCH_INFO_METHOD:
2513 case MONO_PATCH_INFO_METHOD_JUMP:
2514 case MONO_PATCH_INFO_ICALL_ADDR:
2515 case MONO_PATCH_INFO_METHOD_RGCTX:
2516 encode_method_ref (acfg, patch_info->data.method, p, &p);
2518 case MONO_PATCH_INFO_INTERNAL_METHOD:
2519 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
2520 guint32 len = strlen (patch_info->data.name);
2522 encode_value (len, p, &p);
2524 memcpy (p, patch_info->data.name, len);
2529 case MONO_PATCH_INFO_LDSTR: {
2530 guint32 image_index = get_image_index (acfg, patch_info->data.token->image);
2531 guint32 token = patch_info->data.token->token;
2532 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_STRING);
2533 encode_value (image_index, p, &p);
2534 encode_value (patch_info->data.token->token - MONO_TOKEN_STRING, p, &p);
2537 case MONO_PATCH_INFO_RVA:
2538 case MONO_PATCH_INFO_DECLSEC:
2539 case MONO_PATCH_INFO_LDTOKEN:
2540 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2541 encode_value (get_image_index (acfg, patch_info->data.token->image), p, &p);
2542 encode_value (patch_info->data.token->token, p, &p);
2543 encode_value (patch_info->data.token->has_context, p, &p);
2544 if (patch_info->data.token->has_context)
2545 encode_generic_context (acfg, &patch_info->data.token->context, p, &p);
2547 case MONO_PATCH_INFO_EXC_NAME: {
2548 MonoClass *ex_class;
2551 mono_class_from_name (mono_defaults.exception_class->image,
2552 "System", patch_info->data.target);
2553 g_assert (ex_class);
2554 encode_klass_ref (acfg, ex_class, p, &p);
2557 case MONO_PATCH_INFO_R4:
2558 encode_value (*((guint32 *)patch_info->data.target), p, &p);
2560 case MONO_PATCH_INFO_R8:
2561 encode_value (*((guint32 *)patch_info->data.target), p, &p);
2562 encode_value (*(((guint32 *)patch_info->data.target) + 1), p, &p);
2564 case MONO_PATCH_INFO_VTABLE:
2565 case MONO_PATCH_INFO_CLASS:
2566 case MONO_PATCH_INFO_IID:
2567 case MONO_PATCH_INFO_ADJUSTED_IID:
2568 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
2570 case MONO_PATCH_INFO_CLASS_INIT:
2571 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
2572 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
2574 case MONO_PATCH_INFO_FIELD:
2575 case MONO_PATCH_INFO_SFLDA:
2576 encode_field_info (acfg, patch_info->data.field, p, &p);
2578 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
2580 case MONO_PATCH_INFO_RGCTX_FETCH: {
2581 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
2583 encode_method_ref (acfg, entry->method, p, &p);
2584 encode_value (entry->in_mrgctx, p, &p);
2585 encode_value (entry->info_type, p, &p);
2586 encode_value (entry->data->type, p, &p);
2587 encode_patch (acfg, entry->data, p, &p);
2590 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
2591 case MONO_PATCH_INFO_MONITOR_ENTER:
2592 case MONO_PATCH_INFO_MONITOR_EXIT:
2595 g_warning ("unable to handle jump info %d", patch_info->type);
2596 g_assert_not_reached ();
2603 encode_patch_list (MonoAotCompile *acfg, GPtrArray *patches, int n_patches, int first_got_offset, guint8 *buf, guint8 **endbuf)
2606 guint32 pindex, offset;
2607 MonoJumpInfo *patch_info;
2609 encode_value (n_patches, p, &p);
2611 for (pindex = 0; pindex < patches->len; ++pindex) {
2612 patch_info = g_ptr_array_index (patches, pindex);
2614 if (patch_info->type == MONO_PATCH_INFO_NONE)
2618 offset = get_got_offset (acfg, patch_info);
2619 encode_value (offset, p, &p);
2626 emit_method_info (MonoAotCompile *acfg, MonoCompile *cfg)
2630 int pindex, buf_size, n_patches;
2634 MonoJumpInfo *patch_info;
2635 MonoMethodHeader *header;
2636 guint32 method_index;
2638 guint32 first_got_offset;
2640 method = cfg->orig_method;
2641 code = cfg->native_code;
2642 header = mono_method_get_header (method);
2644 method_index = get_method_index (acfg, method);
2646 /* Make the labels local */
2647 sprintf (symbol, "%sm_%x_p", acfg->temp_prefix, method_index);
2649 /* Sort relocations */
2650 patches = g_ptr_array_new ();
2651 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next)
2652 g_ptr_array_add (patches, patch_info);
2653 g_ptr_array_sort (patches, compare_patches);
2655 first_got_offset = acfg->cfgs [method_index]->got_offset;
2657 /**********************/
2658 /* Encode method info */
2659 /**********************/
2661 buf_size = (patches->len < 1000) ? 40960 : 40960 + (patches->len * 64);
2662 p = buf = g_malloc (buf_size);
2664 if (mono_class_get_cctor (method->klass))
2665 encode_klass_ref (acfg, method->klass, p, &p);
2667 /* Not needed when loading the method */
2668 encode_value (0, p, &p);
2671 if (cfg->opt & MONO_OPT_SHARED) {
2672 encode_value (g_list_length (cfg->ldstr_list), p, &p);
2673 for (l = cfg->ldstr_list; l; l = l->next) {
2674 encode_value ((long)l->data, p, &p);
2678 /* Used only in shared mode */
2679 g_assert (!cfg->ldstr_list);
2682 for (pindex = 0; pindex < patches->len; ++pindex) {
2683 patch_info = g_ptr_array_index (patches, pindex);
2685 if ((patch_info->type == MONO_PATCH_INFO_GOT_OFFSET) ||
2686 (patch_info->type == MONO_PATCH_INFO_NONE)) {
2687 patch_info->type = MONO_PATCH_INFO_NONE;
2692 if ((patch_info->type == MONO_PATCH_INFO_IMAGE) && (patch_info->data.image == acfg->image)) {
2693 /* Stored in a GOT slot initialized at module load time */
2694 patch_info->type = MONO_PATCH_INFO_NONE;
2698 if (is_plt_patch (patch_info)) {
2699 /* Calls are made through the PLT */
2700 patch_info->type = MONO_PATCH_INFO_NONE;
2708 g_assert (cfg->has_got_slots);
2710 encode_patch_list (acfg, patches, n_patches, first_got_offset, p, &p);
2712 acfg->stats.info_size += p - buf;
2714 /* Emit method info */
2716 emit_label (acfg, symbol);
2718 g_assert (p - buf < buf_size);
2719 emit_bytes (acfg, buf, p - buf);
2724 get_unwind_info_offset (MonoAotCompile *acfg, guint8 *encoded, guint32 encoded_len)
2726 guint32 cache_index;
2729 /* Reuse the unwind module to canonize and store unwind info entries */
2730 cache_index = mono_cache_unwind_info (encoded, encoded_len);
2732 /* Use +/- 1 to distinguish 0s from missing entries */
2733 offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1)));
2741 * It would be easier to use assembler symbols, but the caller needs an
2744 offset = acfg->unwind_info_offset;
2745 g_hash_table_insert (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1), GUINT_TO_POINTER (offset + 1));
2746 g_ptr_array_add (acfg->unwind_ops, GUINT_TO_POINTER (cache_index));
2749 encode_value (encoded_len, p, &p);
2751 acfg->unwind_info_offset += encoded_len + (p - buf);
2757 emit_exception_debug_info (MonoAotCompile *acfg, MonoCompile *cfg)
2760 int k, buf_size, method_index;
2761 guint32 debug_info_size;
2764 MonoMethodHeader *header;
2765 guint8 *p, *buf, *debug_info;
2766 MonoJitInfo *jinfo = cfg->jit_info;
2768 gboolean use_unwind_ops = FALSE;
2770 method = cfg->orig_method;
2771 code = cfg->native_code;
2772 header = mono_method_get_header (method);
2774 method_index = get_method_index (acfg, method);
2776 /* Make the labels local */
2777 sprintf (symbol, "%se_%x_p", acfg->temp_prefix, method_index);
2779 if (!acfg->aot_opts.nodebug) {
2780 mono_debug_serialize_debug_info (cfg, &debug_info, &debug_info_size);
2783 debug_info_size = 0;
2786 buf_size = header->num_clauses * 256 + debug_info_size + 1024;
2787 p = buf = g_malloc (buf_size);
2789 #ifdef MONO_ARCH_HAVE_XP_UNWIND
2790 use_unwind_ops = cfg->unwind_ops != NULL;
2793 flags = (jinfo->has_generic_jit_info ? 1 : 0) | (use_unwind_ops ? 2 : 0);
2795 encode_value (jinfo->code_size, p, &p);
2796 encode_value (flags, p, &p);
2798 if (use_unwind_ops) {
2799 guint32 encoded_len;
2803 * This is a duplicate of the data in the .debug_frame section, but that
2804 * section cannot be accessed using the dl interface.
2806 encoded = mono_unwind_ops_encode (cfg->unwind_ops, &encoded_len);
2807 encode_value (get_unwind_info_offset (acfg, encoded, encoded_len), p, &p);
2810 encode_value (jinfo->used_regs, p, &p);
2813 /* Exception table */
2814 if (header->num_clauses) {
2815 for (k = 0; k < header->num_clauses; ++k) {
2816 MonoJitExceptionInfo *ei = &jinfo->clauses [k];
2818 encode_value (ei->exvar_offset, p, &p);
2820 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER)
2821 encode_value ((gint)((guint8*)ei->data.filter - code), p, &p);
2823 encode_value ((gint)((guint8*)ei->try_start - code), p, &p);
2824 encode_value ((gint)((guint8*)ei->try_end - code), p, &p);
2825 encode_value ((gint)((guint8*)ei->handler_start - code), p, &p);
2829 if (jinfo->has_generic_jit_info) {
2830 MonoGenericJitInfo *gi = mono_jit_info_get_generic_jit_info (jinfo);
2832 encode_value (gi->has_this ? 1 : 0, p, &p);
2833 encode_value (gi->this_reg, p, &p);
2834 encode_value (gi->this_offset, p, &p);
2837 * Need to encode jinfo->method too, since it is not equal to 'method'
2838 * when using generic sharing.
2840 encode_method_ref (acfg, jinfo->method, p, &p);
2843 g_assert (debug_info_size < buf_size);
2845 encode_value (debug_info_size, p, &p);
2846 if (debug_info_size) {
2847 memcpy (p, debug_info, debug_info_size);
2848 p += debug_info_size;
2849 g_free (debug_info);
2852 acfg->stats.ex_info_size += p - buf;
2856 emit_label (acfg, symbol);
2858 g_assert (p - buf < buf_size);
2859 emit_bytes (acfg, buf, p - buf);
2864 emit_klass_info (MonoAotCompile *acfg, guint32 token)
2866 MonoClass *klass = mono_class_get (acfg->image, token);
2870 gboolean no_special_static, cant_encode;
2871 gpointer iter = NULL;
2873 buf_size = 10240 + (klass->vtable_size * 16);
2874 p = buf = g_malloc (buf_size);
2878 mono_class_init (klass);
2880 mono_class_get_nested_types (klass, &iter);
2881 g_assert (klass->nested_classes_inited);
2883 mono_class_setup_vtable (klass);
2886 * Emit all the information which is required for creating vtables so
2887 * the runtime does not need to create the MonoMethod structures which
2888 * take up a lot of space.
2891 no_special_static = !mono_class_has_special_static_fields (klass);
2893 /* Check whenever we have enough info to encode the vtable */
2894 cant_encode = FALSE;
2895 for (i = 0; i < klass->vtable_size; ++i) {
2896 MonoMethod *cm = klass->vtable [i];
2898 if (cm && mono_method_signature (cm)->is_inflated && !g_hash_table_lookup (acfg->token_info_hash, cm))
2902 if (klass->generic_container || cant_encode) {
2903 encode_value (-1, p, &p);
2905 encode_value (klass->vtable_size, p, &p);
2906 encode_value ((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);
2907 if (klass->has_cctor)
2908 encode_method_ref (acfg, mono_class_get_cctor (klass), p, &p);
2909 if (klass->has_finalize)
2910 encode_method_ref (acfg, mono_class_get_finalizer (klass), p, &p);
2912 encode_value (klass->instance_size, p, &p);
2913 encode_value (mono_class_data_size (klass), p, &p);
2914 encode_value (klass->packing_size, p, &p);
2915 encode_value (klass->min_align, p, &p);
2917 for (i = 0; i < klass->vtable_size; ++i) {
2918 MonoMethod *cm = klass->vtable [i];
2921 encode_method_ref (acfg, cm, p, &p);
2923 encode_value (0, p, &p);
2927 acfg->stats.class_info_size += p - buf;
2930 sprintf (symbol, "%sK_I_%x", acfg->temp_prefix, token - MONO_TOKEN_TYPE_DEF - 1);
2931 emit_label (acfg, symbol);
2933 g_assert (p - buf < buf_size);
2934 emit_bytes (acfg, buf, p - buf);
2939 * Calls made from AOTed code are routed through a table of jumps similar to the
2940 * ELF PLT (Program Linkage Table). The differences are the following:
2941 * - the ELF PLT entries make an indirect jump though the GOT so they expect the
2942 * GOT pointer to be in EBX. We want to avoid this, so our table contains direct
2943 * jumps. This means the jumps need to be patched when the address of the callee is
2944 * known. Initially the PLT entries jump to code which transfers control to the
2945 * AOT runtime through the first PLT entry.
2948 emit_plt (MonoAotCompile *acfg)
2954 cache = g_hash_table_new (g_str_hash, g_str_equal);
2957 sprintf (symbol, "plt");
2959 emit_section_change (acfg, ".text", 0);
2960 emit_global (acfg, symbol, TRUE);
2962 /* This section will be made read-write by the AOT loader */
2963 emit_alignment (acfg, mono_pagesize ());
2965 emit_alignment (acfg, 16);
2967 emit_label (acfg, symbol);
2968 emit_label (acfg, acfg->plt_symbol);
2970 for (i = 0; i < acfg->plt_offset; ++i) {
2972 char *debug_sym = NULL;
2974 sprintf (label, "%sp_%d", acfg->temp_prefix, i);
2975 emit_label (acfg, label);
2977 if (acfg->aot_opts.write_symbols) {
2978 MonoJumpInfo *ji = g_hash_table_lookup (acfg->plt_offset_to_patch, GUINT_TO_POINTER (i));
2979 char *debug_sym = NULL;
2983 case MONO_PATCH_INFO_METHOD:
2984 debug_sym = get_debug_sym (ji->data.method, "plt_", cache);
2986 case MONO_PATCH_INFO_INTERNAL_METHOD:
2987 debug_sym = g_strdup_printf ("plt__jit_icall_%s", ji->data.name);
2989 case MONO_PATCH_INFO_CLASS_INIT:
2990 debug_sym = g_strdup_printf ("plt__class_init_%s", mono_type_get_name (&ji->data.klass->byval_arg));
2991 sanitize_symbol (debug_sym);
2993 case MONO_PATCH_INFO_RGCTX_FETCH:
2994 debug_sym = g_strdup_printf ("plt__rgctx_fetch_%d", acfg->label_generator ++);
2996 case MONO_PATCH_INFO_ICALL_ADDR: {
2997 char *s = get_debug_sym (ji->data.method, "", cache);
2999 debug_sym = g_strdup_printf ("plt__icall_native_%s", s);
3003 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
3004 debug_sym = g_strdup_printf ("plt__jit_icall_native_%s", ji->data.name);
3006 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
3007 debug_sym = g_strdup_printf ("plt__generic_class_init");
3014 emit_local_symbol (acfg, debug_sym, NULL, TRUE);
3015 emit_label (acfg, debug_sym);
3021 * The first plt entry is used to transfer code to the AOT loader.
3023 arch_emit_plt_entry (acfg, i);
3026 emit_symbol_size (acfg, debug_sym, ".");
3031 emit_symbol_size (acfg, acfg->plt_symbol, ".");
3033 sprintf (symbol, "plt_end");
3034 emit_global (acfg, symbol, TRUE);
3035 emit_label (acfg, symbol);
3037 g_hash_table_destroy (cache);
3040 static G_GNUC_UNUSED void
3041 emit_trampoline (MonoAotCompile *acfg, const char *name, guint8 *code,
3042 guint32 code_size, int got_offset, MonoJumpInfo *ji, GSList *unwind_ops)
3044 char start_symbol [256];
3047 MonoJumpInfo *patch_info;
3053 sprintf (start_symbol, "%s", name);
3055 emit_section_change (acfg, ".text", 0);
3056 emit_global (acfg, start_symbol, TRUE);
3057 emit_alignment (acfg, 16);
3058 emit_label (acfg, start_symbol);
3060 sprintf (symbol, "%snamed_%s", acfg->temp_prefix, name);
3061 emit_label (acfg, symbol);
3064 * The code should access everything through the GOT, so we pass
3067 emit_and_reloc_code (acfg, NULL, code, code_size, ji, TRUE);
3069 emit_symbol_size (acfg, start_symbol, ".");
3073 /* Sort relocations */
3074 patches = g_ptr_array_new ();
3075 for (patch_info = ji; patch_info; patch_info = patch_info->next)
3076 if (patch_info->type != MONO_PATCH_INFO_NONE)
3077 g_ptr_array_add (patches, patch_info);
3078 g_ptr_array_sort (patches, compare_patches);
3080 buf_size = patches->len * 128 + 128;
3081 buf = g_malloc (buf_size);
3084 encode_patch_list (acfg, patches, patches->len, got_offset, p, &p);
3085 g_assert (p - buf < buf_size);
3087 sprintf (symbol, "%s_p", name);
3089 emit_section_change (acfg, ".text", 0);
3090 emit_global (acfg, symbol, FALSE);
3091 emit_label (acfg, symbol);
3093 emit_bytes (acfg, buf, p - buf);
3095 /* Emit debug info */
3099 sprintf (symbol, "%s", name);
3100 sprintf (symbol2, "%snamed_%s", acfg->temp_prefix, name);
3103 mono_dwarf_writer_emit_trampoline (acfg->dwarf, symbol, symbol2, NULL, NULL, code_size, unwind_ops);
3108 emit_trampolines (MonoAotCompile *acfg)
3111 int i, tramp_got_offset;
3112 MonoAotTrampoline ntype;
3113 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
3121 if (!acfg->aot_opts.full_aot)
3124 g_assert (acfg->image->assembly);
3126 /* Currently, we only emit most trampolines into the mscorlib AOT image. */
3127 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
3128 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
3130 * Emit the generic trampolines.
3132 * We could save some code by treating the generic trampolines as a wrapper
3133 * method, but that approach has its own complexities, so we choose the simpler
3136 for (tramp_type = 0; tramp_type < MONO_TRAMPOLINE_NUM; ++tramp_type) {
3137 code = mono_arch_create_trampoline_code_full (tramp_type, &code_size, &ji, &unwind_ops, TRUE);
3139 /* Emit trampoline code */
3141 sprintf (symbol, "generic_trampoline_%d", tramp_type);
3143 emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, unwind_ops);
3146 code = mono_arch_get_nullified_class_init_trampoline (&code_size);
3147 emit_trampoline (acfg, "nullified_class_init_trampoline", code, code_size, acfg->got_offset, NULL, NULL);
3148 #if defined(TARGET_AMD64) && defined(MONO_ARCH_MONITOR_OBJECT_REG)
3149 code = mono_arch_create_monitor_enter_trampoline_full (&code_size, &ji, TRUE);
3150 emit_trampoline (acfg, "monitor_enter_trampoline", code, code_size, acfg->got_offset, ji, NULL);
3151 code = mono_arch_create_monitor_exit_trampoline_full (&code_size, &ji, TRUE);
3152 emit_trampoline (acfg, "monitor_exit_trampoline", code, code_size, acfg->got_offset, ji, NULL);
3155 code = mono_arch_create_generic_class_init_trampoline_full (&code_size, &ji, TRUE);
3156 emit_trampoline (acfg, "generic_class_init_trampoline", code, code_size, acfg->got_offset, ji, NULL);
3158 /* Emit the exception related code pieces */
3159 code = mono_arch_get_restore_context_full (&code_size, &ji, TRUE);
3160 emit_trampoline (acfg, "restore_context", code, code_size, acfg->got_offset, ji, NULL);
3161 code = mono_arch_get_call_filter_full (&code_size, &ji, TRUE);
3162 emit_trampoline (acfg, "call_filter", code, code_size, acfg->got_offset, ji, NULL);
3163 code = mono_arch_get_throw_exception_full (&code_size, &ji, TRUE);
3164 emit_trampoline (acfg, "throw_exception", code, code_size, acfg->got_offset, ji, NULL);
3165 code = mono_arch_get_rethrow_exception_full (&code_size, &ji, TRUE);
3166 emit_trampoline (acfg, "rethrow_exception", code, code_size, acfg->got_offset, ji, NULL);
3167 code = mono_arch_get_throw_exception_by_name_full (&code_size, &ji, TRUE);
3168 emit_trampoline (acfg, "throw_exception_by_name", code, code_size, acfg->got_offset, ji, NULL);
3169 code = mono_arch_get_throw_corlib_exception_full (&code_size, &ji, TRUE);
3170 emit_trampoline (acfg, "throw_corlib_exception", code, code_size, acfg->got_offset, ji, NULL);
3172 #if defined(TARGET_AMD64)
3173 code = mono_arch_get_throw_pending_exception_full (&code_size, &ji, TRUE);
3174 emit_trampoline (acfg, "throw_pending_exception", code, code_size, acfg->got_offset, ji, NULL);
3177 for (i = 0; i < 128; ++i) {
3180 offset = MONO_RGCTX_SLOT_MAKE_RGCTX (i);
3181 code = mono_arch_create_rgctx_lazy_fetch_trampoline_full (offset, &code_size, &ji, TRUE);
3182 sprintf (symbol, "rgctx_fetch_trampoline_%u", offset);
3183 emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, NULL);
3185 offset = MONO_RGCTX_SLOT_MAKE_MRGCTX (i);
3186 code = mono_arch_create_rgctx_lazy_fetch_trampoline_full (offset, &code_size, &ji, TRUE);
3187 sprintf (symbol, "rgctx_fetch_trampoline_%u", offset);
3188 emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, NULL);
3194 /* delegate_invoke_impl trampolines */
3195 l = mono_arch_get_delegate_invoke_impls ();
3197 MonoAotTrampInfo *info = l->data;
3199 emit_trampoline (acfg, info->name, info->code, info->code_size, acfg->got_offset, NULL, NULL);
3204 #endif /* #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES */
3206 /* Emit trampolines which are numerous */
3209 * These include the following:
3210 * - specific trampolines
3211 * - static rgctx invoke trampolines
3213 * These trampolines have the same code, they are parameterized by GOT
3215 * They are defined in this file, in the arch_... routines instead of
3216 * in tramp-<ARCH>.c, since it is easier to do it this way.
3220 * When running in aot-only mode, we can't create specific trampolines at
3221 * runtime, so we create a few, and save them in the AOT file.
3222 * Normal trampolines embed their argument as a literal inside the
3223 * trampoline code, we can't do that here, so instead we embed an offset
3224 * which needs to be added to the trampoline address to get the address of
3225 * the GOT slot which contains the argument value.
3226 * The generated trampolines jump to the generic trampolines using another
3227 * GOT slot, which will be setup by the AOT loader to point to the
3228 * generic trampoline code of the given type.
3232 * FIXME: Maybe we should use more specific trampolines (i.e. one class init for
3236 emit_section_change (acfg, ".text", 0);
3238 tramp_got_offset = acfg->got_offset;
3240 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype) {
3242 case MONO_AOT_TRAMP_SPECIFIC:
3243 sprintf (symbol, "specific_trampolines");
3245 case MONO_AOT_TRAMP_STATIC_RGCTX:
3246 sprintf (symbol, "static_rgctx_trampolines");
3248 case MONO_AOT_TRAMP_IMT_THUNK:
3249 sprintf (symbol, "imt_thunks");
3252 g_assert_not_reached ();
3255 emit_global (acfg, symbol, TRUE);
3256 emit_alignment (acfg, 16);
3257 emit_label (acfg, symbol);
3259 acfg->trampoline_got_offset_base [ntype] = tramp_got_offset;
3261 for (i = 0; i < acfg->num_trampolines [ntype]; ++i) {
3265 case MONO_AOT_TRAMP_SPECIFIC:
3266 arch_emit_specific_trampoline (acfg, tramp_got_offset, &tramp_size);
3267 tramp_got_offset += 2;
3269 case MONO_AOT_TRAMP_STATIC_RGCTX:
3270 arch_emit_static_rgctx_trampoline (acfg, tramp_got_offset, &tramp_size);
3271 tramp_got_offset += 2;
3273 case MONO_AOT_TRAMP_IMT_THUNK:
3274 arch_emit_imt_thunk (acfg, tramp_got_offset, &tramp_size);
3275 tramp_got_offset += 1;
3278 g_assert_not_reached ();
3281 if (!acfg->trampoline_size [ntype]) {
3282 g_assert (tramp_size);
3283 acfg->trampoline_size [ntype] = tramp_size;
3288 /* Reserve some entries at the end of the GOT for our use */
3289 acfg->num_trampoline_got_entries = tramp_got_offset - acfg->got_offset;
3292 acfg->got_offset += acfg->num_trampoline_got_entries;
3296 str_begins_with (const char *str1, const char *str2)
3298 int len = strlen (str2);
3299 return strncmp (str1, str2, len) == 0;
3303 mono_aot_parse_options (const char *aot_options, MonoAotOptions *opts)
3305 gchar **args, **ptr;
3307 args = g_strsplit (aot_options ? aot_options : "", ",", -1);
3308 for (ptr = args; ptr && *ptr; ptr ++) {
3309 const char *arg = *ptr;
3311 if (str_begins_with (arg, "outfile=")) {
3312 opts->outfile = g_strdup (arg + strlen ("outfile="));
3313 } else if (str_begins_with (arg, "save-temps")) {
3314 opts->save_temps = TRUE;
3315 } else if (str_begins_with (arg, "keep-temps")) {
3316 opts->save_temps = TRUE;
3317 } else if (str_begins_with (arg, "write-symbols")) {
3318 opts->write_symbols = TRUE;
3319 } else if (str_begins_with (arg, "metadata-only")) {
3320 opts->metadata_only = TRUE;
3321 } else if (str_begins_with (arg, "bind-to-runtime-version")) {
3322 opts->bind_to_runtime_version = TRUE;
3323 } else if (str_begins_with (arg, "full")) {
3324 opts->full_aot = TRUE;
3325 } else if (str_begins_with (arg, "threads=")) {
3326 opts->nthreads = atoi (arg + strlen ("threads="));
3327 } else if (str_begins_with (arg, "static")) {
3328 opts->static_link = TRUE;
3329 opts->no_dlsym = TRUE;
3330 } else if (str_begins_with (arg, "asmonly")) {
3331 opts->asm_only = TRUE;
3332 } else if (str_begins_with (arg, "asmwriter")) {
3333 opts->asm_writer = TRUE;
3334 } else if (str_begins_with (arg, "nodebug")) {
3335 opts->nodebug = TRUE;
3336 } else if (str_begins_with (arg, "ntrampolines=")) {
3337 opts->ntrampolines = atoi (arg + strlen ("ntrampolines="));
3338 } else if (str_begins_with (arg, "tool-prefix=")) {
3339 opts->tool_prefix = g_strdup (arg + strlen ("tool-prefix="));
3341 fprintf (stderr, "AOT : Unknown argument '%s'.\n", arg);
3350 add_token_info_hash (gpointer key, gpointer value, gpointer user_data)
3352 MonoMethod *method = (MonoMethod*)key;
3353 MonoJumpInfoToken *ji = (MonoJumpInfoToken*)value;
3354 MonoJumpInfoToken *new_ji = g_new0 (MonoJumpInfoToken, 1);
3355 MonoAotCompile *acfg = user_data;
3357 new_ji->image = ji->image;
3358 new_ji->token = ji->token;
3359 g_hash_table_insert (acfg->token_info_hash, method, new_ji);
3363 can_encode_class (MonoAotCompile *acfg, MonoClass *klass)
3365 if (klass->type_token)
3367 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
3370 return can_encode_class (acfg, klass->element_class);
3375 can_encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
3377 switch (patch_info->type) {
3378 case MONO_PATCH_INFO_METHOD:
3379 case MONO_PATCH_INFO_METHODCONST: {
3380 MonoMethod *method = patch_info->data.method;
3382 if (method->wrapper_type) {
3383 switch (method->wrapper_type) {
3384 case MONO_WRAPPER_NONE:
3385 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
3386 case MONO_WRAPPER_XDOMAIN_INVOKE:
3387 case MONO_WRAPPER_STFLD:
3388 case MONO_WRAPPER_LDFLD:
3389 case MONO_WRAPPER_LDFLDA:
3390 case MONO_WRAPPER_LDFLD_REMOTE:
3391 case MONO_WRAPPER_STFLD_REMOTE:
3392 case MONO_WRAPPER_STELEMREF:
3393 case MONO_WRAPPER_ISINST:
3394 case MONO_WRAPPER_PROXY_ISINST:
3395 case MONO_WRAPPER_ALLOC:
3396 case MONO_WRAPPER_REMOTING_INVOKE:
3397 case MONO_WRAPPER_UNKNOWN:
3400 //printf ("Skip (wrapper call): %d -> %s\n", patch_info->type, mono_method_full_name (patch_info->data.method, TRUE));
3404 if (!method->token) {
3405 /* The method is part of a constructed type like Int[,].Set (). */
3406 if (!g_hash_table_lookup (acfg->token_info_hash, method)) {
3407 if (method->klass->rank)
3415 case MONO_PATCH_INFO_VTABLE:
3416 case MONO_PATCH_INFO_CLASS_INIT:
3417 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3418 case MONO_PATCH_INFO_CLASS:
3419 case MONO_PATCH_INFO_IID:
3420 case MONO_PATCH_INFO_ADJUSTED_IID:
3421 if (!can_encode_class (acfg, patch_info->data.klass)) {
3422 //printf ("Skip: %s\n", mono_type_full_name (&patch_info->data.klass->byval_arg));
3426 case MONO_PATCH_INFO_RGCTX_FETCH: {
3427 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
3429 if (!can_encode_patch (acfg, entry->data))
3441 add_generic_class (MonoAotCompile *acfg, MonoClass *klass);
3446 * AOT compile a given method.
3447 * This function might be called by multiple threads, so it must be thread-safe.
3450 compile_method (MonoAotCompile *acfg, MonoMethod *method)
3453 MonoJumpInfo *patch_info;
3456 MonoMethod *wrapped;
3458 if (acfg->aot_opts.metadata_only)
3461 mono_acfg_lock (acfg);
3462 index = get_method_index (acfg, method);
3463 mono_acfg_unlock (acfg);
3465 /* fixme: maybe we can also precompile wrapper methods */
3466 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
3467 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
3468 (method->flags & METHOD_ATTRIBUTE_ABSTRACT)) {
3469 //printf ("Skip (impossible): %s\n", mono_method_full_name (method, TRUE));
3473 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
3476 wrapped = mono_marshal_method_from_wrapper (method);
3477 if (wrapped && (wrapped->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && wrapped->is_generic)
3478 // FIXME: The wrapper should be generic too, but it is not
3481 InterlockedIncrement (&acfg->stats.mcount);
3484 if (method->is_generic || method->klass->generic_container) {
3485 InterlockedIncrement (&acfg->stats.genericcount);
3490 //acfg->aot_opts.print_skipped_methods = TRUE;
3493 * Since these methods are the only ones which are compiled with
3494 * AOT support, and they are not used by runtime startup/shutdown code,
3495 * the runtime will not see AOT methods during AOT compilation,so it
3496 * does not need to support them by creating a fake GOT etc.
3498 cfg = mini_method_compile (method, acfg->opts, mono_get_root_domain (), FALSE, TRUE, 0);
3499 if (cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
3500 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3501 InterlockedIncrement (&acfg->stats.genericcount);
3504 if (cfg->exception_type != MONO_EXCEPTION_NONE) {
3505 /* Let the exception happen at runtime */
3509 if (cfg->disable_aot) {
3510 if (acfg->aot_opts.print_skipped_methods)
3511 printf ("Skip (disabled): %s\n", mono_method_full_name (method, TRUE));
3512 InterlockedIncrement (&acfg->stats.ocount);
3513 mono_destroy_compile (cfg);
3517 /* Nullify patches which need no aot processing */
3518 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3519 switch (patch_info->type) {
3520 case MONO_PATCH_INFO_LABEL:
3521 case MONO_PATCH_INFO_BB:
3522 patch_info->type = MONO_PATCH_INFO_NONE;
3529 /* Collect method->token associations from the cfg */
3530 mono_acfg_lock (acfg);
3531 g_hash_table_foreach (cfg->token_info_hash, add_token_info_hash, acfg);
3532 mono_acfg_unlock (acfg);
3535 * Check for absolute addresses.
3538 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3539 switch (patch_info->type) {
3540 case MONO_PATCH_INFO_ABS:
3541 /* unable to handle this */
3550 if (acfg->aot_opts.print_skipped_methods)
3551 printf ("Skip (abs call): %s\n", mono_method_full_name (method, TRUE));
3552 InterlockedIncrement (&acfg->stats.abscount);
3553 mono_destroy_compile (cfg);
3557 /* Lock for the rest of the code */
3558 mono_acfg_lock (acfg);
3561 * Check for methods/klasses we can't encode.
3564 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3565 if (!can_encode_patch (acfg, patch_info))
3570 if (acfg->aot_opts.print_skipped_methods)
3571 printf ("Skip (patches): %s\n", mono_method_full_name (method, TRUE));
3572 acfg->stats.ocount++;
3573 mono_destroy_compile (cfg);
3574 mono_acfg_unlock (acfg);
3578 /* Adds generic instances referenced by this method */
3579 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3580 switch (patch_info->type) {
3581 case MONO_PATCH_INFO_METHOD: {
3582 MonoMethod *m = patch_info->data.method;
3583 if (m->is_inflated) {
3584 if (!(mono_class_generic_sharing_enabled (m->klass) &&
3585 mono_method_is_generic_sharable_impl (m, FALSE)) &&
3586 !method_has_type_vars (m)) {
3587 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
3588 if (acfg->aot_opts.full_aot)
3589 add_extra_method (acfg, mono_marshal_get_native_wrapper (m, TRUE, TRUE));
3591 add_extra_method (acfg, m);
3594 add_generic_class (acfg, m->klass);
3603 /* Determine whenever the method has GOT slots */
3604 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3605 switch (patch_info->type) {
3606 case MONO_PATCH_INFO_GOT_OFFSET:
3607 case MONO_PATCH_INFO_NONE:
3609 case MONO_PATCH_INFO_IMAGE:
3610 /* The assembly is stored in GOT slot 0 */
3611 if (patch_info->data.image != acfg->image)
3612 cfg->has_got_slots = TRUE;
3615 if (!is_plt_patch (patch_info))
3616 cfg->has_got_slots = TRUE;
3621 if (!cfg->has_got_slots)
3622 InterlockedIncrement (&acfg->stats.methods_without_got_slots);
3624 /* Make a copy of the patch info which is in the mempool */
3626 MonoJumpInfo *patches = NULL, *patches_end = NULL;
3628 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3629 MonoJumpInfo *new_patch_info = mono_patch_info_dup_mp (acfg->mempool, patch_info);
3632 patches = new_patch_info;
3634 patches_end->next = new_patch_info;
3635 patches_end = new_patch_info;
3637 cfg->patch_info = patches;
3639 /* Make a copy of the unwind info */
3641 GSList *l, *unwind_ops;
3645 for (l = cfg->unwind_ops; l; l = l->next) {
3646 op = mono_mempool_alloc (acfg->mempool, sizeof (MonoUnwindOp));
3647 memcpy (op, l->data, sizeof (MonoUnwindOp));
3648 unwind_ops = g_slist_prepend_mempool (acfg->mempool, unwind_ops, op);
3650 cfg->unwind_ops = g_slist_reverse (unwind_ops);
3652 /* Make a copy of the argument/local info */
3654 MonoInst **args, **locals;
3655 MonoMethodSignature *sig;
3656 MonoMethodHeader *header;
3659 sig = mono_method_signature (method);
3660 args = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * (sig->param_count + sig->hasthis));
3661 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
3662 args [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
3663 memcpy (args [i], cfg->args [i], sizeof (MonoInst));
3667 header = mono_method_get_header (method);
3668 locals = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * header->num_locals);
3669 for (i = 0; i < header->num_locals; ++i) {
3670 locals [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
3671 memcpy (locals [i], cfg->locals [i], sizeof (MonoInst));
3673 cfg->locals = locals;
3676 /* Free some fields used by cfg to conserve memory */
3677 mono_mempool_destroy (cfg->mempool);
3678 cfg->mempool = NULL;
3679 g_free (cfg->varinfo);
3680 cfg->varinfo = NULL;
3684 mono_regstate_free (cfg->rs);
3688 //printf ("Compile: %s\n", mono_method_full_name (method, TRUE));
3690 while (index >= acfg->cfgs_size) {
3691 MonoCompile **new_cfgs;
3694 new_size = acfg->cfgs_size * 2;
3695 new_cfgs = g_new0 (MonoCompile*, new_size);
3696 memcpy (new_cfgs, acfg->cfgs, sizeof (MonoCompile*) * acfg->cfgs_size);
3697 g_free (acfg->cfgs);
3698 acfg->cfgs = new_cfgs;
3699 acfg->cfgs_size = new_size;
3701 acfg->cfgs [index] = cfg;
3703 g_hash_table_insert (acfg->method_to_cfg, cfg->orig_method, cfg);
3706 if (cfg->orig_method->wrapper_type)
3707 g_ptr_array_add (acfg->extra_methods, cfg->orig_method);
3710 mono_acfg_unlock (acfg);
3712 InterlockedIncrement (&acfg->stats.ccount);
3716 compile_thread_main (gpointer *user_data)
3718 MonoDomain *domain = user_data [0];
3719 MonoAotCompile *acfg = user_data [1];
3720 GPtrArray *methods = user_data [2];
3723 mono_thread_attach (domain);
3725 for (i = 0; i < methods->len; ++i)
3726 compile_method (acfg, g_ptr_array_index (methods, i));
3730 load_profile_files (MonoAotCompile *acfg)
3734 int file_index, res, method_index, i;
3741 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);
3743 if (!g_file_test (tmp, G_FILE_TEST_IS_REGULAR)) {
3748 infile = fopen (tmp, "r");
3751 printf ("Using profile data file '%s'\n", tmp);
3756 res = fscanf (infile, "%32s\n", ver);
3757 if ((res != 1) || strcmp (ver, "#VER:1") != 0) {
3758 printf ("Profile file has wrong version or invalid.\n");
3764 res = fscanf (infile, "%d\n", &token);
3768 method_index = mono_metadata_token_index (token) - 1;
3770 if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (method_index)))
3771 acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (method_index));
3776 /* Add missing methods */
3778 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3779 if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (i)))
3780 unordered = g_list_prepend (unordered, GUINT_TO_POINTER (i));
3782 unordered = g_list_reverse (unordered);
3783 if (acfg->method_order)
3784 g_list_last (acfg->method_order)->next = unordered;
3786 acfg->method_order = unordered;
3790 emit_code (MonoAotCompile *acfg)
3796 #if defined(TARGET_POWERPC64)
3797 sprintf (symbol, ".Lgot_addr");
3798 emit_section_change (acfg, ".text", 0);
3799 emit_alignment (acfg, 8);
3800 emit_label (acfg, symbol);
3801 emit_pointer (acfg, acfg->got_symbol);
3804 sprintf (symbol, "methods");
3805 emit_section_change (acfg, ".text", 0);
3806 emit_global (acfg, symbol, TRUE);
3807 emit_alignment (acfg, 8);
3808 emit_label (acfg, symbol);
3811 * Emit some padding so the local symbol for the first method doesn't have the
3812 * same address as 'methods'.
3814 emit_zero_bytes (acfg, 16);
3816 for (l = acfg->method_order; l != NULL; l = l->next) {
3817 i = GPOINTER_TO_UINT (l->data);
3820 emit_method_code (acfg, acfg->cfgs [i]);
3823 sprintf (symbol, "methods_end");
3824 emit_section_change (acfg, ".text", 0);
3825 emit_global (acfg, symbol, FALSE);
3826 emit_alignment (acfg, 8);
3827 emit_label (acfg, symbol);
3829 sprintf (symbol, "method_offsets");
3830 emit_section_change (acfg, ".text", 1);
3831 emit_global (acfg, symbol, FALSE);
3832 emit_alignment (acfg, 8);
3833 emit_label (acfg, symbol);
3835 for (i = 0; i < acfg->nmethods; ++i) {
3836 if (acfg->cfgs [i]) {
3837 sprintf (symbol, "%sm_%x", acfg->temp_prefix, i);
3838 emit_symbol_diff (acfg, symbol, "methods", 0);
3840 emit_int32 (acfg, 0xffffffff);
3847 emit_info (MonoAotCompile *acfg)
3853 /* Emit method info */
3854 sprintf (symbol, "method_info");
3855 emit_section_change (acfg, ".text", 1);
3856 emit_global (acfg, symbol, FALSE);
3857 emit_alignment (acfg, 8);
3858 emit_label (acfg, symbol);
3860 /* To reduce size of generated assembly code */
3861 sprintf (symbol, "mi");
3862 emit_label (acfg, symbol);
3864 for (l = acfg->method_order; l != NULL; l = l->next) {
3865 i = GPOINTER_TO_UINT (l->data);
3868 emit_method_info (acfg, acfg->cfgs [i]);
3871 sprintf (symbol, "method_info_offsets");
3872 emit_section_change (acfg, ".text", 1);
3873 emit_global (acfg, symbol, FALSE);
3874 emit_alignment (acfg, 8);
3875 emit_label (acfg, symbol);
3877 for (i = 0; i < acfg->nmethods; ++i) {
3878 if (acfg->cfgs [i]) {
3879 sprintf (symbol, "%sm_%x_p", acfg->temp_prefix, i);
3880 emit_symbol_diff (acfg, symbol, "mi", 0);
3882 emit_int32 (acfg, 0);
3888 #endif /* #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT) */
3891 * mono_aot_str_hash:
3893 * Hash function for strings which we use to hash strings for things which are
3894 * saved in the AOT image, since g_str_hash () can change.
3897 mono_aot_str_hash (gconstpointer v1)
3899 /* Same as g_str_hash () in glib */
3900 char *p = (char *) v1;
3905 hash = (hash << 5) - hash + *p;
3911 #define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
3912 #define mix(a,b,c) { \
3913 a -= c; a ^= rot(c, 4); c += b; \
3914 b -= a; b ^= rot(a, 6); a += c; \
3915 c -= b; c ^= rot(b, 8); b += a; \
3916 a -= c; a ^= rot(c,16); c += b; \
3917 b -= a; b ^= rot(a,19); a += c; \
3918 c -= b; c ^= rot(b, 4); b += a; \
3920 #define final(a,b,c) { \
3921 c ^= b; c -= rot(b,14); \
3922 a ^= c; a -= rot(c,11); \
3923 b ^= a; b -= rot(a,25); \
3924 c ^= b; c -= rot(b,16); \
3925 a ^= c; a -= rot(c,4); \
3926 b ^= a; b -= rot(a,14); \
3927 c ^= b; c -= rot(b,24); \
3931 mono_aot_type_hash (MonoType *t1)
3933 guint hash = t1->type;
3935 hash |= t1->byref << 6; /* do not collide with t1->type values */
3937 case MONO_TYPE_VALUETYPE:
3938 case MONO_TYPE_CLASS:
3939 case MONO_TYPE_SZARRAY:
3940 /* check if the distribution is good enough */
3941 return ((hash << 5) - hash) ^ mono_aot_str_hash (t1->data.klass->name);
3943 return ((hash << 5) - hash) ^ mono_aot_type_hash (t1->data.type);
3944 case MONO_TYPE_ARRAY:
3945 return ((hash << 5) - hash) ^ mono_aot_type_hash (&t1->data.array->eklass->byval_arg);
3946 case MONO_TYPE_GENERICINST:
3947 return ((hash << 5) - hash) ^ 0;
3953 * mono_aot_method_hash:
3955 * Return a hash code for methods which only depends on metadata.
3958 mono_aot_method_hash (MonoMethod *method)
3960 MonoMethodSignature *sig;
3964 guint32 *hashes_start, *hashes;
3967 /* Similar to the hash in mono_method_get_imt_slot () */
3969 sig = mono_method_signature (method);
3971 hashes_count = sig->param_count + 5;
3972 hashes_start = malloc (hashes_count * sizeof (guint32));
3973 hashes = hashes_start;
3975 /* Some wrappers are assigned to random classes */
3976 if (!method->wrapper_type || method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3977 klass = method->klass;
3979 klass = mono_defaults.object_class;
3981 if (!method->wrapper_type) {
3982 char *full_name = mono_type_full_name (&klass->byval_arg);
3984 hashes [0] = mono_aot_str_hash (full_name);
3988 hashes [0] = mono_aot_str_hash (klass->name);
3989 hashes [1] = mono_aot_str_hash (klass->name_space);
3991 hashes [2] = mono_aot_str_hash (method->name);
3992 hashes [3] = method->wrapper_type;
3993 hashes [4] = mono_aot_type_hash (sig->ret);
3994 for (i = 0; i < sig->param_count; i++) {
3995 hashes [5 + i] = mono_aot_type_hash (sig->params [i]);
3998 /* Setup internal state */
3999 a = b = c = 0xdeadbeef + (((guint32)hashes_count)<<2);
4001 /* Handle most of the hashes */
4002 while (hashes_count > 3) {
4011 /* Handle the last 3 hashes (all the case statements fall through) */
4012 switch (hashes_count) {
4013 case 3 : c += hashes [2];
4014 case 2 : b += hashes [1];
4015 case 1 : a += hashes [0];
4017 case 0: /* nothing left to add */
4021 free (hashes_start);
4030 * mono_aot_wrapper_name:
4032 * Return a string which uniqely identifies the given wrapper method.
4035 mono_aot_wrapper_name (MonoMethod *method)
4037 char *name, *tmpsig, *klass_desc;
4039 tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
4041 switch (method->wrapper_type) {
4042 case MONO_WRAPPER_RUNTIME_INVOKE:
4043 case MONO_WRAPPER_DELEGATE_INVOKE:
4044 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
4045 case MONO_WRAPPER_DELEGATE_END_INVOKE:
4046 /* This is a hack to work around the fact that runtime invoke wrappers get assigned to some random class */
4047 name = g_strdup_printf ("%s (%s)", method->name, tmpsig);
4050 klass_desc = mono_type_full_name (&method->klass->byval_arg);
4052 name = g_strdup_printf ("%s:%s (%s)", klass_desc, method->name, tmpsig);
4062 * mono_aot_tramp_info_create:
4064 * Create a MonoAotTrampInfo structure from the arguments.
4067 mono_aot_tramp_info_create (const char *name, guint8 *code, guint32 code_size)
4069 MonoAotTrampInfo *info = g_new0 (MonoAotTrampInfo, 1);
4071 info->name = (char*)name;
4073 info->code_size = code_size;
4078 #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
4080 typedef struct HashEntry {
4081 guint32 key, value, index;
4082 struct HashEntry *next;
4086 * emit_extra_methods:
4088 * Emit methods which are not in the METHOD table, like wrappers.
4091 emit_extra_methods (MonoAotCompile *acfg)
4093 int i, table_size, buf_size;
4096 guint32 *info_offsets;
4099 HashEntry *entry, *new_entry;
4100 int nmethods, max_chain_length;
4103 info_offsets = g_new0 (guint32, acfg->extra_methods->len);
4105 buf_size = acfg->extra_methods->len * 256 + 256;
4106 p = buf = g_malloc (buf_size);
4108 /* Encode method info */
4110 /* So offsets are > 0 */
4113 for (i = 0; i < acfg->extra_methods->len; ++i) {
4114 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
4115 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
4122 info_offsets [i] = p - buf;
4125 if (method->wrapper_type) {
4127 * We encode some wrappers using their name, since encoding them
4128 * directly would be difficult. This also avoids creating the wrapper
4129 * methods at runtime, since they are not needed anyway.
4131 switch (method->wrapper_type) {
4132 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
4133 case MONO_WRAPPER_SYNCHRONIZED:
4134 /* encode_method_ref () can handle these */
4136 case MONO_WRAPPER_RUNTIME_INVOKE:
4137 if (mono_marshal_method_from_wrapper (method) != method && !strstr (method->name, "virtual"))
4138 /* Direct wrapper, encode normally */
4142 name = mono_aot_wrapper_name (method);
4148 encode_value (1, p, &p);
4149 encode_value (method->wrapper_type, p, &p);
4150 strcpy ((char*)p, name);
4151 p += strlen (name ) + 1;
4154 encode_value (0, p, &p);
4155 encode_method_ref (acfg, method, p, &p);
4158 g_assert ((p - buf) < buf_size);
4161 g_assert ((p - buf) < buf_size);
4163 /* Emit method info */
4164 sprintf (symbol, "extra_method_info");
4165 emit_section_change (acfg, ".text", 1);
4166 emit_global (acfg, symbol, FALSE);
4167 emit_alignment (acfg, 8);
4168 emit_label (acfg, symbol);
4170 emit_bytes (acfg, buf, p - buf);
4175 * Construct a chained hash table for mapping indexes in extra_method_info to
4178 table_size = g_spaced_primes_closest ((int)(nmethods * 1.5));
4179 table = g_ptr_array_sized_new (table_size);
4180 for (i = 0; i < table_size; ++i)
4181 g_ptr_array_add (table, NULL);
4182 chain_lengths = g_new0 (int, table_size);
4183 max_chain_length = 0;
4184 for (i = 0; i < acfg->extra_methods->len; ++i) {
4185 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
4186 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
4192 key = info_offsets [i];
4193 value = get_method_index (acfg, method);
4195 hash = mono_aot_method_hash (method) % table_size;
4197 chain_lengths [hash] ++;
4198 max_chain_length = MAX (max_chain_length, chain_lengths [hash]);
4200 /* FIXME: Allocate from the mempool */
4201 new_entry = g_new0 (HashEntry, 1);
4202 new_entry->key = key;
4203 new_entry->value = value;
4205 entry = g_ptr_array_index (table, hash);
4206 if (entry == NULL) {
4207 new_entry->index = hash;
4208 g_ptr_array_index (table, hash) = new_entry;
4211 entry = entry->next;
4213 entry->next = new_entry;
4214 new_entry->index = table->len;
4215 g_ptr_array_add (table, new_entry);
4219 //printf ("MAX: %d\n", max_chain_length);
4221 /* Emit the table */
4222 sprintf (symbol, "extra_method_table");
4223 emit_section_change (acfg, ".text", 0);
4224 emit_global (acfg, symbol, FALSE);
4225 emit_alignment (acfg, 8);
4226 emit_label (acfg, symbol);
4228 g_assert (table_size < 65000);
4229 emit_int32 (acfg, table_size);
4230 g_assert (table->len < 65000);
4231 for (i = 0; i < table->len; ++i) {
4232 HashEntry *entry = g_ptr_array_index (table, i);
4234 if (entry == NULL) {
4235 emit_int32 (acfg, 0);
4236 emit_int32 (acfg, 0);
4237 emit_int32 (acfg, 0);
4239 g_assert (entry->key > 0);
4240 emit_int32 (acfg, entry->key);
4241 emit_int32 (acfg, entry->value);
4243 emit_int32 (acfg, entry->next->index);
4245 emit_int32 (acfg, 0);
4250 * Emit a table reverse mapping method indexes to their index in extra_method_info.
4251 * This is used by mono_aot_find_jit_info ().
4253 sprintf (symbol, "extra_method_info_offsets");
4254 emit_section_change (acfg, ".text", 0);
4255 emit_global (acfg, symbol, FALSE);
4256 emit_alignment (acfg, 8);
4257 emit_label (acfg, symbol);
4259 emit_int32 (acfg, acfg->extra_methods->len);
4260 for (i = 0; i < acfg->extra_methods->len; ++i) {
4261 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
4263 emit_int32 (acfg, get_method_index (acfg, method));
4264 emit_int32 (acfg, info_offsets [i]);
4269 emit_method_order (MonoAotCompile *acfg)
4275 sprintf (symbol, "method_order");
4276 emit_section_change (acfg, ".text", 1);
4277 emit_global (acfg, symbol, FALSE);
4278 emit_alignment (acfg, 8);
4279 emit_label (acfg, symbol);
4281 /* First emit an index table */
4284 for (l = acfg->method_order; l != NULL; l = l->next) {
4285 i = GPOINTER_TO_UINT (l->data);
4287 if (acfg->cfgs [i]) {
4288 if ((index % 1024) == 0) {
4289 emit_int32 (acfg, i);
4297 emit_int32 (acfg, 0xffffff);
4299 /* Then emit the whole method order */
4300 for (l = acfg->method_order; l != NULL; l = l->next) {
4301 i = GPOINTER_TO_UINT (l->data);
4303 if (acfg->cfgs [i]) {
4304 emit_int32 (acfg, i);
4309 sprintf (symbol, "method_order_end");
4310 emit_section_change (acfg, ".text", 1);
4311 emit_global (acfg, symbol, FALSE);
4312 emit_label (acfg, symbol);
4316 emit_exception_info (MonoAotCompile *acfg)
4321 sprintf (symbol, "ex_info");
4322 emit_section_change (acfg, ".text", 1);
4323 emit_global (acfg, symbol, FALSE);
4324 emit_alignment (acfg, 8);
4325 emit_label (acfg, symbol);
4327 /* To reduce size of generated assembly */
4328 sprintf (symbol, "ex");
4329 emit_label (acfg, symbol);
4331 for (i = 0; i < acfg->nmethods; ++i) {
4333 emit_exception_debug_info (acfg, acfg->cfgs [i]);
4336 sprintf (symbol, "ex_info_offsets");
4337 emit_section_change (acfg, ".text", 1);
4338 emit_global (acfg, symbol, FALSE);
4339 emit_alignment (acfg, 8);
4340 emit_label (acfg, symbol);
4342 for (i = 0; i < acfg->nmethods; ++i) {
4343 if (acfg->cfgs [i]) {
4344 sprintf (symbol, "%se_%x_p", acfg->temp_prefix, i);
4345 emit_symbol_diff (acfg, symbol, "ex", 0);
4347 emit_int32 (acfg, 0);
4354 emit_unwind_info (MonoAotCompile *acfg)
4360 * The unwind info contains a lot of duplicates so we emit each unique
4361 * entry once, and only store the offset from the start of the table in the
4365 sprintf (symbol, "unwind_info");
4366 emit_section_change (acfg, ".text", 1);
4367 emit_alignment (acfg, 8);
4368 emit_label (acfg, symbol);
4369 emit_global (acfg, symbol, FALSE);
4371 for (i = 0; i < acfg->unwind_ops->len; ++i) {
4372 guint32 index = GPOINTER_TO_UINT (g_ptr_array_index (acfg->unwind_ops, i));
4373 guint8 *unwind_info;
4374 guint32 unwind_info_len;
4378 unwind_info = mono_get_cached_unwind_info (index, &unwind_info_len);
4381 encode_value (unwind_info_len, p, &p);
4382 emit_bytes (acfg, buf, p - buf);
4383 emit_bytes (acfg, unwind_info, unwind_info_len);
4385 acfg->stats.unwind_info_size += (p - buf) + unwind_info_len;
4390 emit_class_info (MonoAotCompile *acfg)
4395 sprintf (symbol, "class_info");
4396 emit_section_change (acfg, ".text", 1);
4397 emit_global (acfg, symbol, FALSE);
4398 emit_alignment (acfg, 8);
4399 emit_label (acfg, symbol);
4401 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i)
4402 emit_klass_info (acfg, MONO_TOKEN_TYPE_DEF | (i + 1));
4404 sprintf (symbol, "class_info_offsets");
4405 emit_section_change (acfg, ".text", 1);
4406 emit_global (acfg, symbol, FALSE);
4407 emit_alignment (acfg, 8);
4408 emit_label (acfg, symbol);
4410 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
4411 sprintf (symbol, "%sK_I_%x", acfg->temp_prefix, i);
4412 emit_symbol_diff (acfg, symbol, "class_info", 0);
4417 typedef struct ClassNameTableEntry {
4418 guint32 token, index;
4419 struct ClassNameTableEntry *next;
4420 } ClassNameTableEntry;
4423 emit_class_name_table (MonoAotCompile *acfg)
4426 guint32 token, hash;
4431 ClassNameTableEntry *entry, *new_entry;
4434 * Construct a chained hash table for mapping class names to typedef tokens.
4436 table_size = g_spaced_primes_closest ((int)(acfg->image->tables [MONO_TABLE_TYPEDEF].rows * 1.5));
4437 table = g_ptr_array_sized_new (table_size);
4438 for (i = 0; i < table_size; ++i)
4439 g_ptr_array_add (table, NULL);
4440 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
4441 token = MONO_TOKEN_TYPE_DEF | (i + 1);
4442 klass = mono_class_get (acfg->image, token);
4443 full_name = mono_type_get_name_full (mono_class_get_type (klass), MONO_TYPE_NAME_FORMAT_FULL_NAME);
4444 hash = mono_aot_str_hash (full_name) % table_size;
4447 /* FIXME: Allocate from the mempool */
4448 new_entry = g_new0 (ClassNameTableEntry, 1);
4449 new_entry->token = token;
4451 entry = g_ptr_array_index (table, hash);
4452 if (entry == NULL) {
4453 new_entry->index = hash;
4454 g_ptr_array_index (table, hash) = new_entry;
4457 entry = entry->next;
4459 entry->next = new_entry;
4460 new_entry->index = table->len;
4461 g_ptr_array_add (table, new_entry);
4465 /* Emit the table */
4466 sprintf (symbol, "class_name_table");
4467 emit_section_change (acfg, ".text", 0);
4468 emit_global (acfg, symbol, FALSE);
4469 emit_alignment (acfg, 8);
4470 emit_label (acfg, symbol);
4472 /* FIXME: Optimize memory usage */
4473 g_assert (table_size < 65000);
4474 emit_int16 (acfg, table_size);
4475 g_assert (table->len < 65000);
4476 for (i = 0; i < table->len; ++i) {
4477 ClassNameTableEntry *entry = g_ptr_array_index (table, i);
4479 if (entry == NULL) {
4480 emit_int16 (acfg, 0);
4481 emit_int16 (acfg, 0);
4483 emit_int16 (acfg, mono_metadata_token_index (entry->token));
4485 emit_int16 (acfg, entry->next->index);
4487 emit_int16 (acfg, 0);
4493 emit_image_table (MonoAotCompile *acfg)
4499 * The image table is small but referenced in a lot of places.
4500 * So we emit it at once, and reference its elements by an index.
4503 sprintf (symbol, "mono_image_table");
4504 emit_section_change (acfg, ".text", 1);
4505 emit_global (acfg, symbol, FALSE);
4506 emit_alignment (acfg, 8);
4507 emit_label (acfg, symbol);
4509 emit_int32 (acfg, acfg->image_table->len);
4510 for (i = 0; i < acfg->image_table->len; i++) {
4511 MonoImage *image = (MonoImage*)g_ptr_array_index (acfg->image_table, i);
4512 MonoAssemblyName *aname = &image->assembly->aname;
4514 /* FIXME: Support multi-module assemblies */
4515 g_assert (image->assembly->image == image);
4517 emit_string (acfg, image->assembly_name);
4518 emit_string (acfg, image->guid);
4519 emit_string (acfg, aname->culture ? aname->culture : "");
4520 emit_string (acfg, (const char*)aname->public_key_token);
4522 emit_alignment (acfg, 8);
4523 emit_int32 (acfg, aname->flags);
4524 emit_int32 (acfg, aname->major);
4525 emit_int32 (acfg, aname->minor);
4526 emit_int32 (acfg, aname->build);
4527 emit_int32 (acfg, aname->revision);
4532 emit_got_info (MonoAotCompile *acfg)
4535 int i, first_plt_got_patch, buf_size;
4537 guint32 *got_info_offsets;
4539 /* Add the patches needed by the PLT to the GOT */
4540 acfg->plt_got_offset_base = acfg->got_offset;
4541 first_plt_got_patch = acfg->got_patches->len;
4542 for (i = 1; i < acfg->plt_offset; ++i) {
4543 MonoJumpInfo *patch_info = g_hash_table_lookup (acfg->plt_offset_to_patch, GUINT_TO_POINTER (i));
4545 g_ptr_array_add (acfg->got_patches, patch_info);
4548 acfg->got_offset += acfg->plt_offset;
4552 * - optimize offsets table.
4553 * - reduce number of exported symbols.
4554 * - emit info for a klass only once.
4555 * - determine when a method uses a GOT slot which is guaranteed to be already
4557 * - clean up and document the code.
4558 * - use String.Empty in class libs.
4561 /* Encode info required to decode shared GOT entries */
4562 buf_size = acfg->got_patches->len * 64;
4563 p = buf = mono_mempool_alloc (acfg->mempool, buf_size);
4564 got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->got_patches->len * sizeof (guint32));
4565 acfg->plt_got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->plt_offset * sizeof (guint32));
4567 if (acfg->plt_offset)
4568 acfg->plt_got_info_offsets [0] = 0;
4569 for (i = 0; i < acfg->got_patches->len; ++i) {
4570 MonoJumpInfo *ji = g_ptr_array_index (acfg->got_patches, i);
4572 got_info_offsets [i] = p - buf;
4573 if (i >= first_plt_got_patch)
4574 acfg->plt_got_info_offsets [i - first_plt_got_patch + 1] = got_info_offsets [i];
4575 encode_value (ji->type, p, &p);
4576 encode_patch (acfg, ji, p, &p);
4579 g_assert (p - buf <= buf_size);
4581 acfg->stats.got_info_size = p - buf;
4583 /* Emit got_info table */
4584 sprintf (symbol, "got_info");
4585 emit_section_change (acfg, ".text", 1);
4586 emit_global (acfg, symbol, FALSE);
4587 emit_alignment (acfg, 8);
4588 emit_label (acfg, symbol);
4590 emit_bytes (acfg, buf, p - buf);
4592 /* Emit got_info_offsets table */
4593 sprintf (symbol, "got_info_offsets");
4594 emit_section_change (acfg, ".text", 1);
4595 emit_global (acfg, symbol, FALSE);
4596 emit_alignment (acfg, 8);
4597 emit_label (acfg, symbol);
4599 /* No need to emit offsets for the got plt entries, the plt embeds them directly */
4600 for (i = 0; i < first_plt_got_patch; ++i)
4601 emit_int32 (acfg, got_info_offsets [i]);
4603 acfg->stats.got_info_offsets_size = acfg->got_patches->len * 4;
4607 emit_got (MonoAotCompile *acfg)
4611 /* Don't make GOT global so accesses to it don't need relocations */
4612 sprintf (symbol, acfg->got_symbol);
4613 emit_section_change (acfg, ".bss", 0);
4614 emit_alignment (acfg, 8);
4615 emit_local_symbol (acfg, symbol, "got_end", FALSE);
4616 emit_label (acfg, symbol);
4617 if (acfg->got_offset > 0)
4618 emit_zero_bytes (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
4620 sprintf (symbol, "got_end");
4621 emit_label (acfg, symbol);
4623 sprintf (symbol, "mono_aot_got_addr");
4624 emit_section_change (acfg, ".data", 0);
4625 emit_global (acfg, symbol, FALSE);
4626 emit_alignment (acfg, 8);
4627 emit_label (acfg, symbol);
4628 emit_pointer (acfg, acfg->got_symbol);
4632 emit_globals (MonoAotCompile *acfg)
4637 emit_string_symbol (acfg, "mono_assembly_guid" , acfg->image->guid);
4639 emit_string_symbol (acfg, "mono_aot_version", MONO_AOT_FILE_VERSION);
4641 opts_str = g_strdup_printf ("%d", acfg->opts);
4642 emit_string_symbol (acfg, "mono_aot_opt_flags", opts_str);
4645 emit_string_symbol (acfg, "mono_aot_full_aot", acfg->aot_opts.full_aot ? "TRUE" : "FALSE");
4647 if (acfg->aot_opts.bind_to_runtime_version) {
4648 build_info = mono_get_runtime_build_info ();
4649 emit_string_symbol (acfg, "mono_runtime_version", build_info);
4650 g_free (build_info);
4652 emit_string_symbol (acfg, "mono_runtime_version", "");
4656 * When static linking, we emit a global which will point to the symbol table.
4658 if (acfg->aot_opts.static_link) {
4663 /* Emit a string holding the assembly name */
4664 emit_string_symbol (acfg, "mono_aot_assembly_name", acfg->image->assembly->aname.name);
4666 /* Emit the names */
4667 for (i = 0; i < acfg->globals->len; ++i) {
4668 char *name = g_ptr_array_index (acfg->globals, i);
4670 sprintf (symbol, "name_%d", i);
4671 emit_section_change (acfg, ".text", 1);
4672 emit_label (acfg, symbol);
4673 emit_string (acfg, name);
4676 /* Emit the globals table */
4677 sprintf (symbol, "globals");
4678 emit_section_change (acfg, ".data", 0);
4679 /* This is not a global, since it is accessed by the init function */
4680 emit_alignment (acfg, 8);
4681 emit_label (acfg, symbol);
4683 for (i = 0; i < acfg->globals->len; ++i) {
4684 char *name = g_ptr_array_index (acfg->globals, i);
4686 sprintf (symbol, "name_%d", i);
4687 emit_pointer (acfg, symbol);
4689 sprintf (symbol, "%s", name);
4690 emit_pointer (acfg, symbol);
4692 /* Null terminate the table */
4693 emit_int32 (acfg, 0);
4694 emit_int32 (acfg, 0);
4697 * Emit a global symbol which can be passed by an embedding app to
4698 * mono_aot_register_module ().
4700 #if defined(__MACH__)
4701 sprintf (symbol, "_mono_aot_module_%s_info", acfg->image->assembly->aname.name);
4703 sprintf (symbol, "mono_aot_module_%s_info", acfg->image->assembly->aname.name);
4706 /* Get rid of characters which cannot occur in symbols */
4708 for (p = symbol; *p; ++p) {
4709 if (!(isalnum (*p) || *p == '_'))
4712 acfg->static_linking_symbol = g_strdup (symbol);
4713 emit_global_inner (acfg, symbol, FALSE);
4714 emit_alignment (acfg, 8);
4715 emit_label (acfg, symbol);
4716 emit_pointer (acfg, "globals");
4721 emit_mem_end (MonoAotCompile *acfg)
4725 sprintf (symbol, "mem_end");
4726 emit_section_change (acfg, ".text", 1);
4727 emit_global (acfg, symbol, FALSE);
4728 emit_alignment (acfg, 8);
4729 emit_label (acfg, symbol);
4733 * Emit a structure containing all the information not stored elsewhere.
4736 emit_file_info (MonoAotCompile *acfg)
4741 sprintf (symbol, "mono_aot_file_info");
4742 emit_section_change (acfg, ".data", 0);
4743 emit_alignment (acfg, 8);
4744 emit_label (acfg, symbol);
4745 emit_global (acfg, symbol, FALSE);
4747 /* The data emitted here must match MonoAotFileInfo in aot-runtime.c. */
4748 emit_int32 (acfg, acfg->plt_got_offset_base);
4749 emit_int32 (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
4750 emit_int32 (acfg, acfg->plt_offset);
4752 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
4753 emit_int32 (acfg, acfg->num_trampolines [i]);
4754 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
4755 emit_int32 (acfg, acfg->trampoline_got_offset_base [i]);
4756 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
4757 emit_int32 (acfg, acfg->trampoline_size [i]);
4761 emit_dwarf_info (MonoAotCompile *acfg)
4763 #ifdef EMIT_DWARF_INFO
4765 char symbol [128], symbol2 [128];
4767 /* DIEs for methods */
4768 for (i = 0; i < acfg->nmethods; ++i) {
4769 MonoCompile *cfg = acfg->cfgs [i];
4774 sprintf (symbol, "%sm_%x", acfg->temp_prefix, i);
4775 sprintf (symbol2, "%sme_%x", acfg->temp_prefix, i);
4777 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 ()));
4783 collect_methods (MonoAotCompile *acfg)
4786 MonoImage *image = acfg->image;
4788 /* Collect methods */
4789 for (i = 0; i < image->tables [MONO_TABLE_METHOD].rows; ++i) {
4791 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
4793 method = mono_get_method (acfg->image, token, NULL);
4796 printf ("Failed to load method 0x%x from '%s'.\n", token, image->name);
4800 /* Load all methods eagerly to skip the slower lazy loading code */
4801 mono_class_setup_methods (method->klass);
4803 if (acfg->aot_opts.full_aot && method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
4804 /* Compile the wrapper instead */
4805 /* We do this here instead of add_wrappers () because it is easy to do it here */
4806 MonoMethod *wrapper = mono_marshal_get_native_wrapper (method, check_for_pending_exc, TRUE);
4810 /* Since we add the normal methods first, their index will be equal to their zero based token index */
4811 add_method_with_index (acfg, method, i, FALSE);
4812 acfg->method_index ++;
4815 add_generic_instances (acfg);
4817 if (acfg->aot_opts.full_aot)
4818 add_wrappers (acfg);
4822 compile_methods (MonoAotCompile *acfg)
4826 if (acfg->aot_opts.nthreads > 0) {
4831 gpointer *user_data;
4832 MonoMethod **methods;
4834 methods_len = acfg->methods->len;
4836 len = acfg->methods->len / acfg->aot_opts.nthreads;
4839 * Partition the list of methods into fragments, and hand it to threads to
4842 threads = g_ptr_array_new ();
4843 /* Make a copy since acfg->methods is modified by compile_method () */
4844 methods = g_new0 (MonoMethod*, methods_len);
4845 //memcpy (methods, g_ptr_array_index (acfg->methods, 0), sizeof (MonoMethod*) * methods_len);
4846 for (i = 0; i < methods_len; ++i)
4847 methods [i] = g_ptr_array_index (acfg->methods, i);
4849 while (i < methods_len) {
4850 frag = g_ptr_array_new ();
4851 for (j = 0; j < len; ++j) {
4852 if (i < methods_len) {
4853 g_ptr_array_add (frag, methods [i]);
4858 user_data = g_new0 (gpointer, 3);
4859 user_data [0] = mono_domain_get ();
4860 user_data [1] = acfg;
4861 user_data [2] = frag;
4863 handle = mono_create_thread (NULL, 0, (gpointer)compile_thread_main, user_data, 0, NULL);
4864 g_ptr_array_add (threads, handle);
4868 for (i = 0; i < threads->len; ++i) {
4869 WaitForSingleObjectEx (g_ptr_array_index (threads, i), INFINITE, FALSE);
4875 /* Compile methods added by compile_method () or all methods if nthreads == 0 */
4876 for (i = methods_len; i < acfg->methods->len; ++i) {
4877 /* This can new methods to acfg->methods */
4878 compile_method (acfg, g_ptr_array_index (acfg->methods, i));
4883 compile_asm (MonoAotCompile *acfg)
4885 char *command, *objfile;
4886 char *outfile_name, *tmp_outfile_name;
4887 const char *tool_prefix = acfg->aot_opts.tool_prefix ? acfg->aot_opts.tool_prefix : "";
4889 #if defined(TARGET_AMD64)
4890 #define AS_OPTIONS "--64"
4891 #elif defined(TARGET_POWERPC64)
4892 #define AS_OPTIONS "-a64 -mppc64"
4893 #define LD_OPTIONS "-m elf64ppc"
4894 #elif defined(sparc) && SIZEOF_VOID_P == 8
4895 #define AS_OPTIONS "-xarch=v9"
4897 #define AS_OPTIONS ""
4901 #define LD_OPTIONS ""
4904 if (acfg->aot_opts.asm_only) {
4905 printf ("Output file: '%s'.\n", acfg->tmpfname);
4906 if (acfg->aot_opts.static_link)
4907 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
4911 if (acfg->aot_opts.static_link) {
4912 if (acfg->aot_opts.outfile)
4913 objfile = g_strdup_printf ("%s", acfg->aot_opts.outfile);
4915 objfile = g_strdup_printf ("%s.o", acfg->image->name);
4917 objfile = g_strdup_printf ("%s.o", acfg->tmpfname);
4919 command = g_strdup_printf ("%sas %s %s -o %s", tool_prefix, AS_OPTIONS, acfg->tmpfname, objfile);
4920 printf ("Executing the native assembler: %s\n", command);
4921 if (system (command) != 0) {
4929 if (acfg->aot_opts.static_link) {
4930 printf ("Output file: '%s'.\n", objfile);
4931 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
4936 if (acfg->aot_opts.outfile)
4937 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
4939 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
4941 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
4944 command = g_strdup_printf ("ld -shared -G -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
4945 #elif defined(__ppc__) && defined(__MACH__)
4946 command = g_strdup_printf ("gcc -dynamiclib -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
4947 #elif defined(PLATFORM_WIN32)
4948 command = g_strdup_printf ("gcc -shared --dll -mno-cygwin -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
4950 command = g_strdup_printf ("%sld %s -shared -o %s %s.o", tool_prefix, LD_OPTIONS, tmp_outfile_name, acfg->tmpfname);
4952 printf ("Executing the native linker: %s\n", command);
4953 if (system (command) != 0) {
4954 g_free (tmp_outfile_name);
4955 g_free (outfile_name);
4963 /*com = g_strdup_printf ("strip --strip-unneeded %s%s", acfg->image->name, SHARED_EXT);
4964 printf ("Stripping the binary: %s\n", com);
4968 #if defined(TARGET_ARM) && !defined(__MACH__)
4970 * gas generates 'mapping symbols' each time code and data is mixed, which
4971 * happens a lot in emit_and_reloc_code (), so we need to get rid of them.
4973 command = g_strdup_printf ("%sstrip --strip-symbol=\\$a --strip-symbol=\\$d %s", tool_prefix, tmp_outfile_name);
4974 printf ("Stripping the binary: %s\n", command);
4975 if (system (command) != 0) {
4976 g_free (tmp_outfile_name);
4977 g_free (outfile_name);
4984 rename (tmp_outfile_name, outfile_name);
4986 g_free (tmp_outfile_name);
4987 g_free (outfile_name);
4990 if (acfg->aot_opts.save_temps)
4991 printf ("Retained input file.\n");
4993 unlink (acfg->tmpfname);
4998 static MonoAotCompile*
4999 acfg_create (MonoAssembly *ass, guint32 opts)
5001 MonoImage *image = ass->image;
5002 MonoAotCompile *acfg;
5004 acfg = g_new0 (MonoAotCompile, 1);
5005 acfg->methods = g_ptr_array_new ();
5006 acfg->method_indexes = g_hash_table_new (NULL, NULL);
5007 acfg->plt_offset_to_patch = g_hash_table_new (NULL, NULL);
5008 acfg->patch_to_plt_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
5009 acfg->patch_to_got_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
5010 acfg->got_patches = g_ptr_array_new ();
5011 acfg->method_to_cfg = g_hash_table_new (NULL, NULL);
5012 acfg->token_info_hash = g_hash_table_new_full (NULL, NULL, NULL, g_free);
5013 acfg->image_hash = g_hash_table_new (NULL, NULL);
5014 acfg->image_table = g_ptr_array_new ();
5015 acfg->globals = g_ptr_array_new ();
5016 acfg->image = image;
5018 acfg->mempool = mono_mempool_new ();
5019 acfg->extra_methods = g_ptr_array_new ();
5020 acfg->unwind_info_offsets = g_hash_table_new (NULL, NULL);
5021 acfg->unwind_ops = g_ptr_array_new ();
5022 acfg->method_label_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
5023 InitializeCriticalSection (&acfg->mutex);
5029 acfg_free (MonoAotCompile *acfg)
5033 img_writer_destroy (acfg->w);
5034 for (i = 0; i < acfg->nmethods; ++i)
5036 g_free (acfg->cfgs [i]);
5037 g_free (acfg->cfgs);
5038 g_free (acfg->static_linking_symbol);
5039 g_free (acfg->got_symbol);
5040 g_free (acfg->plt_symbol);
5041 g_ptr_array_free (acfg->methods, TRUE);
5042 g_ptr_array_free (acfg->got_patches, TRUE);
5043 g_ptr_array_free (acfg->image_table, TRUE);
5044 g_ptr_array_free (acfg->globals, TRUE);
5045 g_ptr_array_free (acfg->unwind_ops, TRUE);
5046 g_hash_table_destroy (acfg->method_indexes);
5047 g_hash_table_destroy (acfg->plt_offset_to_patch);
5048 g_hash_table_destroy (acfg->patch_to_plt_offset);
5049 g_hash_table_destroy (acfg->patch_to_got_offset);
5050 g_hash_table_destroy (acfg->method_to_cfg);
5051 g_hash_table_destroy (acfg->token_info_hash);
5052 g_hash_table_destroy (acfg->image_hash);
5053 g_hash_table_destroy (acfg->unwind_info_offsets);
5054 g_hash_table_destroy (acfg->method_label_hash);
5055 mono_mempool_destroy (acfg->mempool);
5060 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
5062 MonoImage *image = ass->image;
5064 MonoAotCompile *acfg;
5065 char *outfile_name, *tmp_outfile_name, *p;
5069 printf ("Mono Ahead of Time compiler - compiling assembly %s\n", image->name);
5071 acfg = acfg_create (ass, opts);
5073 memset (&acfg->aot_opts, 0, sizeof (acfg->aot_opts));
5074 acfg->aot_opts.write_symbols = TRUE;
5075 acfg->aot_opts.ntrampolines = 1024;
5077 mono_aot_parse_options (aot_options, &acfg->aot_opts);
5079 //acfg->aot_opts.print_skipped_methods = TRUE;
5081 #ifndef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
5082 if (acfg->aot_opts.full_aot) {
5083 printf ("--aot=full is not supported on this platform.\n");
5088 if (acfg->aot_opts.static_link)
5089 acfg->aot_opts.asm_writer = TRUE;
5091 load_profile_files (acfg);
5093 acfg->num_trampolines [MONO_AOT_TRAMP_SPECIFIC] = acfg->aot_opts.full_aot ? acfg->aot_opts.ntrampolines : 0;
5094 #ifdef MONO_ARCH_HAVE_STATIC_RGCTX_TRAMPOLINE
5095 acfg->num_trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = acfg->aot_opts.full_aot ? 1024 : 0;
5097 acfg->num_trampolines [MONO_AOT_TRAMP_IMT_THUNK] = acfg->aot_opts.full_aot ? 128 : 0;
5099 acfg->got_symbol = g_strdup_printf ("mono_aot_%s_got", acfg->image->assembly->aname.name);
5100 acfg->plt_symbol = g_strdup_printf ("mono_aot_%s_plt", acfg->image->assembly->aname.name);
5102 /* Get rid of characters which cannot occur in symbols */
5103 for (p = acfg->got_symbol; *p; ++p) {
5104 if (!(isalnum (*p) || *p == '_'))
5107 for (p = acfg->plt_symbol; *p; ++p) {
5108 if (!(isalnum (*p) || *p == '_'))
5112 acfg->method_index = 1;
5114 collect_methods (acfg);
5116 acfg->cfgs_size = acfg->methods->len + 32;
5117 acfg->cfgs = g_new0 (MonoCompile*, acfg->cfgs_size);
5119 /* PLT offset 0 is reserved for the PLT trampoline */
5120 acfg->plt_offset = 1;
5122 /* GOT offset 0 is reserved for the address of the current assembly */
5126 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
5127 ji->type = MONO_PATCH_INFO_IMAGE;
5128 ji->data.image = acfg->image;
5130 get_got_offset (acfg, ji);
5132 /* Slot 1 is reserved for the mscorlib got addr */
5133 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
5134 ji->type = MONO_PATCH_INFO_MSCORLIB_GOT_ADDR;
5135 get_got_offset (acfg, ji);
5140 compile_methods (acfg);
5144 acfg->stats.jit_time = TV_ELAPSED (atv, btv);
5148 if (!acfg->aot_opts.asm_only && !acfg->aot_opts.asm_writer && bin_writer_supported ()) {
5149 if (acfg->aot_opts.outfile)
5150 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5152 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
5155 * Can't use g_file_open_tmp () as it will be deleted at exit, and
5156 * it might be in another file system so the rename () won't work.
5158 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
5160 acfg->fp = fopen (tmp_outfile_name, "w");
5162 printf ("Unable to create temporary file '%s': %s\n", tmp_outfile_name, strerror (errno));
5166 acfg->w = img_writer_create (acfg->fp, TRUE);
5167 acfg->use_bin_writer = TRUE;
5169 if (acfg->aot_opts.asm_only) {
5170 if (acfg->aot_opts.outfile)
5171 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5173 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
5174 acfg->fp = fopen (acfg->tmpfname, "w+");
5176 int i = g_file_open_tmp ("mono_aot_XXXXXX", &acfg->tmpfname, NULL);
5177 acfg->fp = fdopen (i, "w+");
5179 g_assert (acfg->fp);
5181 acfg->w = img_writer_create (acfg->fp, FALSE);
5183 tmp_outfile_name = NULL;
5184 outfile_name = NULL;
5187 acfg->temp_prefix = img_writer_get_temp_label_prefix (acfg->w);
5189 if (!acfg->aot_opts.nodebug)
5190 acfg->dwarf = mono_dwarf_writer_create (acfg->w, NULL, FALSE);
5192 img_writer_emit_start (acfg->w);
5195 mono_dwarf_writer_emit_base_info (acfg->dwarf, arch_get_cie_program ());
5201 emit_extra_methods (acfg);
5203 emit_method_order (acfg);
5205 emit_trampolines (acfg);
5207 emit_class_name_table (acfg);
5209 emit_got_info (acfg);
5211 emit_exception_info (acfg);
5213 emit_unwind_info (acfg);
5215 emit_class_info (acfg);
5219 emit_image_table (acfg);
5223 emit_file_info (acfg);
5225 emit_globals (acfg);
5228 emit_dwarf_info (acfg);
5229 mono_dwarf_writer_close (acfg->dwarf);
5232 emit_mem_end (acfg);
5236 acfg->stats.gen_time = TV_ELAPSED (atv, btv);
5238 printf ("Code: %d Info: %d Ex Info: %d Unwind Info: %d Class Info: %d PLT: %d GOT Info: %d GOT Info Offsets: %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, acfg->stats.got_info_offsets_size, (int)(acfg->got_offset * sizeof (gpointer)), (int)(acfg->nmethods * 3 * sizeof (gpointer)));
5241 res = img_writer_emit_writeout (acfg->w);
5246 if (acfg->use_bin_writer) {
5247 int err = rename (tmp_outfile_name, outfile_name);
5250 printf ("Unable to rename '%s' to '%s': %s\n", tmp_outfile_name, outfile_name, strerror (errno));
5254 res = compile_asm (acfg);
5261 acfg->stats.link_time = TV_ELAPSED (atv, btv);
5263 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);
5264 if (acfg->stats.genericcount)
5265 printf ("%d methods are generic (%d%%)\n", acfg->stats.genericcount, acfg->stats.mcount ? (acfg->stats.genericcount * 100) / acfg->stats.mcount : 100);
5266 if (acfg->stats.abscount)
5267 printf ("%d methods contain absolute addresses (%d%%)\n", acfg->stats.abscount, acfg->stats.mcount ? (acfg->stats.abscount * 100) / acfg->stats.mcount : 100);
5268 if (acfg->stats.lmfcount)
5269 printf ("%d methods contain lmf pointers (%d%%)\n", acfg->stats.lmfcount, acfg->stats.mcount ? (acfg->stats.lmfcount * 100) / acfg->stats.mcount : 100);
5270 if (acfg->stats.ocount)
5271 printf ("%d methods have other problems (%d%%)\n", acfg->stats.ocount, acfg->stats.mcount ? (acfg->stats.ocount * 100) / acfg->stats.mcount : 100);
5272 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);
5273 printf ("Direct calls: %d (%d%%)\n", acfg->stats.direct_calls, acfg->stats.all_calls ? (acfg->stats.direct_calls * 100) / acfg->stats.all_calls : 100);
5276 printf ("GOT slot distribution:\n");
5277 for (i = 0; i < MONO_PATCH_INFO_NONE; ++i)
5278 if (acfg->stats.got_slot_types [i])
5279 printf ("\t%s: %d\n", get_patch_name (i), acfg->stats.got_slot_types [i]);
5282 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);
5290 * Support for emitting debug info for JITted code.
5292 * This works as follows:
5293 * - the runtime writes out an xdb.s file containing DWARF debug info.
5294 * - the user calls a gdb macro
5295 * - the macro compiles and loads this shared library using add-symbol-file.
5297 * This is based on the xdebug functionality in the Kaffe Java VM.
5299 * We emit assembly code instead of using the ELF writer, so we can emit debug info
5300 * incrementally as each method is JITted, and the debugger doesn't have to call
5301 * into the runtime to emit the shared library, which would cause all kinds of
5302 * complications, like threading issues, and the fact that the ELF writer's
5303 * emit_writeout () function cannot be called more than once.
5306 /* The recommended gdb macro is: */
5309 shell rm -f xdb.so && as --64 -o xdb.o xdb.s && ld -shared -o xdb.so xdb.o
5310 add-symbol-file xdb.so 0
5314 static MonoDwarfWriter *xdebug_writer;
5315 static FILE *xdebug_fp;
5318 mono_xdebug_init (void)
5324 xdebug_fp = fopen ("xdb.s", "w");
5326 w = img_writer_create (xdebug_fp, FALSE);
5328 img_writer_emit_start (w);
5330 /* This file will contain the IL code for methods which don't have debug info */
5331 il_file = fopen ("xdb.il", "w");
5333 xdebug_writer = mono_dwarf_writer_create (w, il_file, TRUE);
5335 /* Emit something so the file has a text segment */
5336 img_writer_emit_section_change (w, ".text", 0);
5337 img_writer_emit_string (w, "");
5339 mono_dwarf_writer_emit_base_info (xdebug_writer, arch_get_cie_program ());
5343 * mono_save_xdebug_info:
5345 * Emit debugging info for METHOD into an assembly file which can be assembled
5346 * and loaded into gdb to provide debugging info for JITted code.
5347 * LOCKING: Acquires the loader lock.
5350 mono_save_xdebug_info (MonoCompile *cfg)
5355 mono_loader_lock ();
5356 mono_dwarf_writer_emit_method (xdebug_writer, cfg, cfg->jit_info->method, NULL, NULL, 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 ()));
5358 mono_loader_unlock ();
5362 * mono_save_trampoline_xdebug_info:
5364 * Same as mono_save_xdebug_info, but for trampolines.
5365 * LOCKING: Acquires the loader lock.
5368 mono_save_trampoline_xdebug_info (const char *tramp_name, guint8 *code, guint32 code_size, GSList *unwind_info)
5373 mono_loader_lock ();
5374 mono_dwarf_writer_emit_trampoline (xdebug_writer, tramp_name, NULL, NULL, code, code_size, unwind_info);
5376 mono_loader_unlock ();
5384 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
5390 mono_xdebug_init (void)
5395 mono_save_xdebug_info (MonoCompile *cfg)
5400 mono_save_trampoline_xdebug_info (const char *tramp_name, guint8 *code, guint32 code_size, GSList *unwind_info)