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_IP, ARMREG_PC, 8);
883 ARM_LDR_REG_REG (code, MONO_ARCH_RGCTX_REG, ARMREG_PC, ARMREG_IP);
884 /* Load branch addr + branch */
885 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 4);
886 ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_IP);
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 /* Need at least two free registers, plus a slot for storing the pc */
1006 ARM_PUSH (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_R2));
1008 /* Load the parameter from the GOT */
1009 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_PC, 0);
1010 ARM_LDR_REG_REG (code, ARMREG_R0, ARMREG_PC, ARMREG_R0);
1013 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_R0, 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_R0, ARMREG_R0, sizeof (gpointer) * 2);
1027 arm_patch (labels [4], labels [1]);
1030 arm_patch (labels [2], code);
1031 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4);
1032 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 0);
1033 /* Save it to the third stack slot */
1034 ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8);
1035 /* Restore the registers and branch */
1036 ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC));
1039 arm_patch (labels [3], code);
1044 ARM_LDR_IMM (code2, ARMREG_R0, ARMREG_PC, (code - (labels [0] + 8)));
1046 emit_bytes (acfg, buf, code - buf);
1047 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) + (code - (labels [0] + 8)) - 4);
1049 *tramp_size = code - buf + 4;
1050 #elif defined(TARGET_POWERPC)
1052 guint8 *code, *labels [16];
1056 /* Load the mscorlib got address */
1057 ppc_ldptr (code, ppc_r11, sizeof (gpointer), ppc_r30);
1058 /* Load the parameter from the GOT */
1059 ppc_load (code, ppc_r0, offset * sizeof (gpointer));
1060 ppc_ldptr_indexed (code, ppc_r11, ppc_r11, ppc_r0);
1062 /* Load and check key */
1064 ppc_ldptr (code, ppc_r0, 0, ppc_r11);
1065 ppc_cmp (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, MONO_ARCH_IMT_REG);
1067 ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0);
1069 /* End-of-loop check */
1070 ppc_cmpi (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, 0);
1072 ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0);
1075 ppc_addi (code, ppc_r11, ppc_r11, 2 * sizeof (gpointer));
1078 mono_ppc_patch (labels [4], labels [1]);
1081 mono_ppc_patch (labels [2], code);
1082 ppc_ldptr (code, ppc_r11, sizeof (gpointer), ppc_r11);
1083 /* r11 now contains the value of the vtable slot */
1084 /* this is not a function descriptor on ppc64 */
1085 ppc_ldptr (code, ppc_r11, 0, ppc_r11);
1086 ppc_mtctr (code, ppc_r11);
1087 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
1090 mono_ppc_patch (labels [3], code);
1094 *tramp_size = code - buf;
1096 emit_bytes (acfg, buf, code - buf);
1098 g_assert_not_reached ();
1103 * arch_get_cie_program:
1105 * Get the unwind bytecode for the DWARF CIE.
1108 arch_get_cie_program (void)
1113 mono_add_unwind_op_def_cfa (l, (guint8*)NULL, (guint8*)NULL, AMD64_RSP, 8);
1114 mono_add_unwind_op_offset (l, (guint8*)NULL, (guint8*)NULL, AMD64_RIP, -8);
1117 #elif defined(TARGET_POWERPC)
1120 mono_add_unwind_op_def_cfa (l, (guint8*)NULL, (guint8*)NULL, ppc_r1, 0);
1128 /* END OF ARCH SPECIFIC CODE */
1131 mono_get_field_token (MonoClassField *field)
1133 MonoClass *klass = field->parent;
1136 for (i = 0; i < klass->field.count; ++i) {
1137 if (field == &klass->fields [i])
1138 return MONO_TOKEN_FIELD_DEF | (klass->field.first + 1 + i);
1141 g_assert_not_reached ();
1146 encode_value (gint32 value, guint8 *buf, guint8 **endbuf)
1150 //printf ("ENCODE: %d 0x%x.\n", value, value);
1153 * Same encoding as the one used in the metadata, extended to handle values
1154 * greater than 0x1fffffff.
1156 if ((value >= 0) && (value <= 127))
1158 else if ((value >= 0) && (value <= 16383)) {
1159 p [0] = 0x80 | (value >> 8);
1160 p [1] = value & 0xff;
1162 } else if ((value >= 0) && (value <= 0x1fffffff)) {
1163 p [0] = (value >> 24) | 0xc0;
1164 p [1] = (value >> 16) & 0xff;
1165 p [2] = (value >> 8) & 0xff;
1166 p [3] = value & 0xff;
1171 p [1] = (value >> 24) & 0xff;
1172 p [2] = (value >> 16) & 0xff;
1173 p [3] = (value >> 8) & 0xff;
1174 p [4] = value & 0xff;
1182 get_image_index (MonoAotCompile *cfg, MonoImage *image)
1186 index = GPOINTER_TO_UINT (g_hash_table_lookup (cfg->image_hash, image));
1190 index = g_hash_table_size (cfg->image_hash);
1191 g_hash_table_insert (cfg->image_hash, image, GUINT_TO_POINTER (index + 1));
1192 g_ptr_array_add (cfg->image_table, image);
1198 find_typespec_for_class (MonoAotCompile *acfg, MonoClass *klass)
1201 MonoClass *k = NULL;
1203 /* FIXME: Search referenced images as well */
1204 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
1205 k = mono_class_get_full (acfg->image, MONO_TOKEN_TYPE_SPEC | (i + 1), NULL);
1210 if (i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows)
1211 return MONO_TOKEN_TYPE_SPEC | (i + 1);
1217 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf);
1222 * Encode a reference to KLASS. We use our home-grown encoding instead of the
1223 * standard metadata encoding.
1226 encode_klass_ref (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf)
1230 if (klass->generic_class) {
1232 g_assert (klass->type_token);
1234 /* Find a typespec for a class if possible */
1235 token = find_typespec_for_class (acfg, klass);
1237 encode_value (token, p, &p);
1238 encode_value (get_image_index (acfg, acfg->image), p, &p);
1240 MonoClass *gclass = klass->generic_class->container_class;
1241 MonoGenericInst *inst = klass->generic_class->context.class_inst;
1244 /* Encode it ourselves */
1246 encode_value (MONO_TOKEN_TYPE_SPEC, p, &p);
1247 encode_value (MONO_TYPE_GENERICINST, p, &p);
1248 encode_klass_ref (acfg, gclass, p, &p);
1249 encode_value (inst->type_argc, p, &p);
1250 for (i = 0; i < inst->type_argc; ++i)
1251 encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
1253 } else if (klass->type_token) {
1254 g_assert (mono_metadata_token_code (klass->type_token) == MONO_TOKEN_TYPE_DEF);
1255 encode_value (klass->type_token - MONO_TOKEN_TYPE_DEF, p, &p);
1256 encode_value (get_image_index (acfg, klass->image), p, &p);
1257 } else if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) {
1258 MonoGenericContainer *container = mono_type_get_generic_param_owner (&klass->byval_arg);
1259 g_assert (container);
1262 encode_value (MONO_TOKEN_TYPE_SPEC, p, &p);
1263 encode_value (klass->byval_arg.type, p, &p);
1265 encode_value (mono_type_get_generic_param_num (&klass->byval_arg), p, &p);
1267 encode_value (container->is_method, p, &p);
1268 if (container->is_method)
1269 encode_method_ref (acfg, container->owner.method, p, &p);
1271 encode_klass_ref (acfg, container->owner.klass, p, &p);
1274 g_assert (klass->rank > 0);
1275 encode_value (MONO_TOKEN_TYPE_DEF, p, &p);
1276 encode_value (get_image_index (acfg, klass->image), p, &p);
1277 encode_value (klass->rank, p, &p);
1278 encode_klass_ref (acfg, klass->element_class, p, &p);
1284 encode_field_info (MonoAotCompile *cfg, MonoClassField *field, guint8 *buf, guint8 **endbuf)
1286 guint32 token = mono_get_field_token (field);
1289 encode_klass_ref (cfg, field->parent, p, &p);
1290 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_FIELD_DEF);
1291 encode_value (token - MONO_TOKEN_FIELD_DEF, p, &p);
1296 encode_generic_context (MonoAotCompile *acfg, MonoGenericContext *context, guint8 *buf, guint8 **endbuf)
1300 MonoGenericInst *inst;
1302 /* Encode the context */
1303 inst = context->class_inst;
1304 encode_value (inst ? 1 : 0, p, &p);
1306 encode_value (inst->type_argc, p, &p);
1307 for (i = 0; i < inst->type_argc; ++i)
1308 encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
1310 inst = context->method_inst;
1311 encode_value (inst ? 1 : 0, p, &p);
1313 encode_value (inst->type_argc, p, &p);
1314 for (i = 0; i < inst->type_argc; ++i)
1315 encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
1321 #define MAX_IMAGE_INDEX 250
1324 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf)
1326 guint32 image_index = get_image_index (acfg, method->klass->image);
1327 guint32 token = method->token;
1328 MonoJumpInfoToken *ji;
1333 * The encoding for most methods is as follows:
1334 * - image index encoded as a leb128
1335 * - token index encoded as a leb128
1336 * Values of image index >= MONO_AOT_METHODREF_MIN are used to mark additional
1337 * types of method encodings.
1340 g_assert (image_index < MONO_AOT_METHODREF_MIN);
1342 /* Mark methods which can't use aot trampolines because they need the further
1343 * processing in mono_magic_trampoline () which requires a MonoMethod*.
1345 if ((method->is_generic && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) ||
1346 (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED))
1347 encode_value ((MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE << 24), p, &p);
1350 * Some wrapper methods are shared using their signature, encode their
1351 * stringified signature instead.
1352 * FIXME: Optimize disk usage
1355 if (method->wrapper_type) {
1356 if (method->wrapper_type == MONO_WRAPPER_RUNTIME_INVOKE) {
1357 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1358 if (strcmp (method->name, "runtime_invoke_dynamic")) {
1359 name = mono_aot_wrapper_name (method);
1360 } else if (mono_marshal_method_from_wrapper (method) != method) {
1361 /* Direct wrapper, encode it normally */
1363 name = g_strdup_printf ("(wrapper runtime-invoke):%s (%s)", method->name, tmpsig);
1366 } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
1367 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1368 name = g_strdup_printf ("(wrapper delegate-invoke):%s (%s)", method->name, tmpsig);
1370 } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_BEGIN_INVOKE) {
1371 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1372 name = g_strdup_printf ("(wrapper delegate-begin-invoke):%s (%s)", method->name, tmpsig);
1374 } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_END_INVOKE) {
1375 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1376 name = g_strdup_printf ("(wrapper delegate-end-invoke):%s (%s)", method->name, tmpsig);
1382 encode_value ((MONO_AOT_METHODREF_WRAPPER_NAME << 24), p, &p);
1383 strcpy ((char*)p, name);
1384 p += strlen (name) + 1;
1386 } else if (method->wrapper_type) {
1387 encode_value ((MONO_AOT_METHODREF_WRAPPER << 24), p, &p);
1389 encode_value (method->wrapper_type, p, &p);
1391 switch (method->wrapper_type) {
1392 case MONO_WRAPPER_REMOTING_INVOKE:
1393 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
1394 case MONO_WRAPPER_XDOMAIN_INVOKE: {
1397 m = mono_marshal_method_from_wrapper (method);
1399 encode_method_ref (acfg, m, p, &p);
1402 case MONO_WRAPPER_PROXY_ISINST:
1403 case MONO_WRAPPER_LDFLD:
1404 case MONO_WRAPPER_LDFLDA:
1405 case MONO_WRAPPER_STFLD:
1406 case MONO_WRAPPER_ISINST: {
1407 MonoClass *proxy_class = (MonoClass*)mono_marshal_method_from_wrapper (method);
1408 encode_klass_ref (acfg, proxy_class, p, &p);
1411 case MONO_WRAPPER_LDFLD_REMOTE:
1412 case MONO_WRAPPER_STFLD_REMOTE:
1414 case MONO_WRAPPER_ALLOC: {
1415 int alloc_type = mono_gc_get_managed_allocator_type (method);
1416 g_assert (alloc_type != -1);
1417 encode_value (alloc_type, p, &p);
1420 case MONO_WRAPPER_STELEMREF:
1422 case MONO_WRAPPER_UNKNOWN:
1423 if (strcmp (method->name, "FastMonitorEnter") == 0)
1424 encode_value (MONO_AOT_WRAPPER_MONO_ENTER, p, &p);
1425 else if (strcmp (method->name, "FastMonitorExit") == 0)
1426 encode_value (MONO_AOT_WRAPPER_MONO_EXIT, p, &p);
1428 g_assert_not_reached ();
1430 case MONO_WRAPPER_SYNCHRONIZED:
1431 case MONO_WRAPPER_MANAGED_TO_NATIVE:
1432 case MONO_WRAPPER_RUNTIME_INVOKE: {
1435 m = mono_marshal_method_from_wrapper (method);
1437 g_assert (m != method);
1438 encode_method_ref (acfg, m, p, &p);
1442 g_assert_not_reached ();
1444 } else if (mono_method_signature (method)->is_inflated) {
1446 * This is a generic method, find the original token which referenced it and
1448 * Obtain the token from information recorded by the JIT.
1450 ji = g_hash_table_lookup (acfg->token_info_hash, method);
1452 image_index = get_image_index (acfg, ji->image);
1453 g_assert (image_index < MAX_IMAGE_INDEX);
1456 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
1457 encode_value (image_index, p, &p);
1458 encode_value (token, p, &p);
1460 MonoMethod *declaring;
1461 MonoGenericContext *context = mono_method_get_context (method);
1463 g_assert (method->is_inflated);
1464 declaring = ((MonoMethodInflated*)method)->declaring;
1467 * This might be a non-generic method of a generic instance, which
1468 * doesn't have a token since the reference is generated by the JIT
1469 * like Nullable:Box/Unbox, or by generic sharing.
1472 encode_value ((MONO_AOT_METHODREF_GINST << 24), p, &p);
1473 /* Encode the klass */
1474 encode_klass_ref (acfg, method->klass, p, &p);
1475 /* Encode the method */
1476 image_index = get_image_index (acfg, method->klass->image);
1477 g_assert (image_index < MAX_IMAGE_INDEX);
1478 g_assert (declaring->token);
1479 token = declaring->token;
1480 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
1481 encode_value (image_index, p, &p);
1482 encode_value (token, p, &p);
1483 encode_generic_context (acfg, context, p, &p);
1485 } else if (token == 0) {
1486 /* This might be a method of a constructed type like int[,].Set */
1487 /* Obtain the token from information recorded by the JIT */
1488 ji = g_hash_table_lookup (acfg->token_info_hash, method);
1490 image_index = get_image_index (acfg, ji->image);
1491 g_assert (image_index < MAX_IMAGE_INDEX);
1494 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
1495 encode_value (image_index, p, &p);
1496 encode_value (token, p, &p);
1499 g_assert (method->klass->rank);
1501 /* Encode directly */
1502 encode_value ((MONO_AOT_METHODREF_ARRAY << 24), p, &p);
1503 encode_klass_ref (acfg, method->klass, p, &p);
1504 if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank)
1505 encode_value (0, p, &p);
1506 else if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank * 2)
1507 encode_value (1, p, &p);
1508 else if (!strcmp (method->name, "Get"))
1509 encode_value (2, p, &p);
1510 else if (!strcmp (method->name, "Address"))
1511 encode_value (3, p, &p);
1512 else if (!strcmp (method->name, "Set"))
1513 encode_value (4, p, &p);
1515 g_assert_not_reached ();
1518 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
1519 encode_value ((image_index << 24) | mono_metadata_token_index (token), p, &p);
1525 compare_patches (gconstpointer a, gconstpointer b)
1529 i = (*(MonoJumpInfo**)a)->ip.i;
1530 j = (*(MonoJumpInfo**)b)->ip.i;
1544 * Return whenever PATCH_INFO refers to a direct call, and thus requires a
1547 static inline gboolean
1548 is_plt_patch (MonoJumpInfo *patch_info)
1550 switch (patch_info->type) {
1551 case MONO_PATCH_INFO_METHOD:
1552 case MONO_PATCH_INFO_INTERNAL_METHOD:
1553 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
1554 case MONO_PATCH_INFO_ICALL_ADDR:
1555 case MONO_PATCH_INFO_CLASS_INIT:
1556 case MONO_PATCH_INFO_RGCTX_FETCH:
1557 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
1558 case MONO_PATCH_INFO_MONITOR_ENTER:
1559 case MONO_PATCH_INFO_MONITOR_EXIT:
1567 get_plt_offset (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
1571 if (is_plt_patch (patch_info)) {
1572 int idx = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_plt_offset, patch_info));
1574 if (patch_info->type == MONO_PATCH_INFO_METHOD && (patch_info->data.method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)) {
1576 * Allocate a separate PLT slot for each such patch, since some plt
1577 * entries will refer to the method itself, and some will refer to
1586 MonoJumpInfo *new_ji = mono_patch_info_dup_mp (acfg->mempool, patch_info);
1588 res = acfg->plt_offset;
1589 g_hash_table_insert (acfg->plt_offset_to_patch, GUINT_TO_POINTER (res), new_ji);
1590 g_hash_table_insert (acfg->patch_to_plt_offset, new_ji, GUINT_TO_POINTER (res));
1591 acfg->plt_offset ++;
1601 * Returns the offset of the GOT slot where the runtime object resulting from resolving
1602 * JI could be found if it exists, otherwise allocates a new one.
1605 get_got_offset (MonoAotCompile *acfg, MonoJumpInfo *ji)
1609 got_offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_got_offset, ji));
1611 return got_offset - 1;
1613 got_offset = acfg->got_offset;
1614 acfg->got_offset ++;
1616 acfg->stats.got_slots ++;
1617 acfg->stats.got_slot_types [ji->type] ++;
1619 g_hash_table_insert (acfg->patch_to_got_offset, ji, GUINT_TO_POINTER (got_offset + 1));
1620 g_ptr_array_add (acfg->got_patches, ji);
1625 /* Add a method to the list of methods which need to be emitted */
1627 add_method_with_index (MonoAotCompile *acfg, MonoMethod *method, int index, gboolean extra)
1630 if (!g_hash_table_lookup (acfg->method_indexes, method)) {
1631 g_ptr_array_add (acfg->methods, method);
1632 g_hash_table_insert (acfg->method_indexes, method, GUINT_TO_POINTER (index + 1));
1633 acfg->nmethods = acfg->methods->len + 1;
1636 if (method->wrapper_type || extra)
1637 g_ptr_array_add (acfg->extra_methods, method);
1641 get_method_index (MonoAotCompile *acfg, MonoMethod *method)
1643 int index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
1651 add_method_full (MonoAotCompile *acfg, MonoMethod *method, gboolean extra)
1655 index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
1659 index = acfg->method_index;
1660 add_method_with_index (acfg, method, index, extra);
1662 /* FIXME: Fix quadratic behavior */
1663 acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (index));
1665 acfg->method_index ++;
1671 add_method (MonoAotCompile *acfg, MonoMethod *method)
1673 return add_method_full (acfg, method, FALSE);
1677 add_extra_method (MonoAotCompile *acfg, MonoMethod *method)
1679 add_method_full (acfg, method, TRUE);
1683 add_jit_icall_wrapper (gpointer key, gpointer value, gpointer user_data)
1685 MonoAotCompile *acfg = user_data;
1686 MonoJitICallInfo *callinfo = value;
1687 MonoMethod *wrapper;
1693 name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
1694 wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_for_pending_exc);
1697 add_method (acfg, wrapper);
1701 get_runtime_invoke_sig (MonoMethodSignature *sig)
1703 MonoMethodBuilder *mb;
1706 mb = mono_mb_new (mono_defaults.object_class, "FOO", MONO_WRAPPER_NONE);
1707 m = mono_mb_create_method (mb, sig, 16);
1708 return mono_marshal_get_runtime_invoke (m, FALSE);
1712 can_marshal_struct (MonoClass *klass)
1714 MonoClassField *field;
1715 gboolean can_marshal = TRUE;
1716 gpointer iter = NULL;
1718 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1721 /* Only allow a few field types to avoid asserts in the marshalling code */
1722 while ((field = mono_class_get_fields (klass, &iter))) {
1723 if ((field->type->attrs & FIELD_ATTRIBUTE_STATIC))
1726 switch (field->type->type) {
1731 case MONO_TYPE_BOOLEAN:
1734 case MONO_TYPE_CHAR:
1742 case MONO_TYPE_STRING:
1744 case MONO_TYPE_VALUETYPE:
1745 if (!can_marshal_struct (mono_class_from_mono_type (field->type)))
1746 can_marshal = FALSE;
1749 can_marshal = FALSE;
1755 /* Its hard to compute whenever these can be marshalled or not */
1756 if (!strcmp (klass->name_space, "System.Net.NetworkInformation.MacOsStructs"))
1763 add_wrappers (MonoAotCompile *acfg)
1765 MonoMethod *method, *m;
1767 MonoMethodSignature *sig, *csig;
1771 * FIXME: Instead of AOTing all the wrappers, it might be better to redesign them
1772 * so there is only one wrapper of a given type, or inlining their contents into their
1777 * FIXME: This depends on the fact that different wrappers have different
1781 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
1783 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
1784 gboolean skip = FALSE;
1786 method = mono_get_method (acfg->image, token, NULL);
1788 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1789 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
1790 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
1793 if (method->is_generic || method->klass->generic_container)
1796 /* Skip methods which can not be handled by get_runtime_invoke () */
1797 sig = mono_method_signature (method);
1798 if ((sig->ret->type == MONO_TYPE_PTR) ||
1799 (sig->ret->type == MONO_TYPE_TYPEDBYREF))
1802 for (j = 0; j < sig->param_count; j++) {
1803 if (sig->params [j]->type == MONO_TYPE_TYPEDBYREF)
1807 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
1808 if (!method->klass->contextbound) {
1809 MonoDynCallInfo *info = mono_arch_dyn_call_prepare (sig);
1812 /* Supported by the dynamic runtime-invoke wrapper */
1820 //printf ("%s\n", mono_method_full_name (method, TRUE));
1821 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
1825 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
1826 #ifdef MONO_ARCH_HAVE_TLS_GET
1827 MonoMethodDesc *desc;
1828 MonoMethod *orig_method;
1832 /* Runtime invoke wrappers */
1834 /* void runtime-invoke () [.cctor] */
1835 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
1836 csig->ret = &mono_defaults.void_class->byval_arg;
1837 add_method (acfg, get_runtime_invoke_sig (csig));
1839 /* void runtime-invoke () [Finalize] */
1840 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
1842 csig->ret = &mono_defaults.void_class->byval_arg;
1843 add_method (acfg, get_runtime_invoke_sig (csig));
1845 /* void runtime-invoke (string) [exception ctor] */
1846 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
1848 csig->ret = &mono_defaults.void_class->byval_arg;
1849 csig->params [0] = &mono_defaults.string_class->byval_arg;
1850 add_method (acfg, get_runtime_invoke_sig (csig));
1852 /* void runtime-invoke (string, string) [exception ctor] */
1853 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
1855 csig->ret = &mono_defaults.void_class->byval_arg;
1856 csig->params [0] = &mono_defaults.string_class->byval_arg;
1857 csig->params [1] = &mono_defaults.string_class->byval_arg;
1858 add_method (acfg, get_runtime_invoke_sig (csig));
1860 /* string runtime-invoke () [Exception.ToString ()] */
1861 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
1863 csig->ret = &mono_defaults.string_class->byval_arg;
1864 add_method (acfg, get_runtime_invoke_sig (csig));
1866 /* void runtime-invoke (string, Exception) [exception ctor] */
1867 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
1869 csig->ret = &mono_defaults.void_class->byval_arg;
1870 csig->params [0] = &mono_defaults.string_class->byval_arg;
1871 csig->params [1] = &mono_defaults.exception_class->byval_arg;
1872 add_method (acfg, get_runtime_invoke_sig (csig));
1874 /* Assembly runtime-invoke (string, bool) [DoAssemblyResolve] */
1875 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
1877 csig->ret = &(mono_class_from_name (
1878 mono_defaults.corlib, "System.Reflection", "Assembly"))->byval_arg;
1879 csig->params [0] = &mono_defaults.string_class->byval_arg;
1880 csig->params [1] = &mono_defaults.boolean_class->byval_arg;
1881 add_method (acfg, get_runtime_invoke_sig (csig));
1883 /* runtime-invoke used by finalizers */
1884 add_method (acfg, mono_marshal_get_runtime_invoke (mono_class_get_method_from_name_flags (mono_defaults.object_class, "Finalize", 0, 0), TRUE));
1886 /* This is used by mono_runtime_capture_context () */
1887 method = mono_get_context_capture_method ();
1889 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
1891 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
1892 add_method (acfg, mono_marshal_get_runtime_invoke_dynamic ());
1895 /* JIT icall wrappers */
1896 /* FIXME: locking */
1897 g_hash_table_foreach (mono_get_jit_icall_info (), add_jit_icall_wrapper, acfg);
1900 add_method (acfg, mono_marshal_get_stelemref ());
1902 #ifdef MONO_ARCH_HAVE_TLS_GET
1903 /* Managed Allocators */
1904 nallocators = mono_gc_get_managed_allocator_types ();
1905 for (i = 0; i < nallocators; ++i) {
1906 m = mono_gc_get_managed_allocator_by_type (i);
1908 add_method (acfg, m);
1911 /* Monitor Enter/Exit */
1912 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
1913 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
1914 g_assert (orig_method);
1915 mono_method_desc_free (desc);
1916 method = mono_monitor_get_fast_path (orig_method);
1918 add_method (acfg, method);
1920 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
1921 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
1922 g_assert (orig_method);
1923 mono_method_desc_free (desc);
1924 method = mono_monitor_get_fast_path (orig_method);
1926 add_method (acfg, method);
1931 * remoting-invoke-with-check wrappers are very frequent, so avoid emitting them,
1932 * we use the original method instead at runtime.
1933 * Since full-aot doesn't support remoting, this is not a problem.
1936 /* remoting-invoke wrappers */
1937 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
1938 MonoMethodSignature *sig;
1940 token = MONO_TOKEN_METHOD_DEF | (i + 1);
1941 method = mono_get_method (acfg->image, token, NULL);
1943 sig = mono_method_signature (method);
1945 if (sig->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class)) {
1946 m = mono_marshal_get_remoting_invoke_with_check (method);
1948 add_method (acfg, m);
1953 /* delegate-invoke wrappers */
1954 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
1957 token = MONO_TOKEN_TYPE_DEF | (i + 1);
1958 klass = mono_class_get (acfg->image, token);
1960 if (klass->delegate && klass != mono_defaults.delegate_class && klass != mono_defaults.multicastdelegate_class && !klass->generic_container) {
1961 method = mono_get_delegate_invoke (klass);
1963 m = mono_marshal_get_delegate_invoke (method, NULL);
1965 add_method (acfg, m);
1967 method = mono_class_get_method_from_name_flags (klass, "BeginInvoke", -1, 0);
1968 add_method (acfg, mono_marshal_get_delegate_begin_invoke (method));
1970 method = mono_class_get_method_from_name_flags (klass, "EndInvoke", -1, 0);
1971 add_method (acfg, mono_marshal_get_delegate_end_invoke (method));
1975 /* Synchronized wrappers */
1976 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
1977 token = MONO_TOKEN_METHOD_DEF | (i + 1);
1978 method = mono_get_method (acfg->image, token, NULL);
1980 if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
1981 add_method (acfg, mono_marshal_get_synchronized_wrapper (method));
1984 /* pinvoke wrappers */
1985 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
1987 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
1989 method = mono_get_method (acfg->image, token, NULL);
1991 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1992 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
1993 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
1997 /* StructureToPtr/PtrToStructure wrappers */
1998 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
2001 token = MONO_TOKEN_TYPE_DEF | (i + 1);
2002 klass = mono_class_get (acfg->image, token);
2004 if (klass->valuetype && !klass->generic_container && can_marshal_struct (klass)) {
2005 add_method (acfg, mono_marshal_get_struct_to_ptr (klass));
2006 add_method (acfg, mono_marshal_get_ptr_to_struct (klass));
2012 has_type_vars (MonoClass *klass)
2014 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
2017 return has_type_vars (klass->element_class);
2018 if (klass->generic_class) {
2019 MonoGenericContext *context = &klass->generic_class->context;
2020 if (context->class_inst) {
2023 for (i = 0; i < context->class_inst->type_argc; ++i)
2024 if (has_type_vars (mono_class_from_mono_type (context->class_inst->type_argv [i])))
2032 method_has_type_vars (MonoMethod *method)
2034 if (has_type_vars (method->klass))
2037 if (method->is_inflated) {
2038 MonoGenericContext *context = mono_method_get_context (method);
2039 if (context->method_inst) {
2042 for (i = 0; i < context->method_inst->type_argc; ++i)
2043 if (has_type_vars (mono_class_from_mono_type (context->method_inst->type_argv [i])))
2051 * add_generic_class:
2053 * Add all methods of a generic class.
2056 add_generic_class (MonoAotCompile *acfg, MonoClass *klass)
2061 mono_class_init (klass);
2063 if (klass->generic_class && klass->generic_class->context.class_inst->is_open)
2066 if (has_type_vars (klass))
2069 if (!klass->generic_class && !klass->rank)
2073 while ((method = mono_class_get_methods (klass, &iter))) {
2074 if (mono_method_is_generic_sharable_impl (method, FALSE))
2078 if (method->is_generic)
2083 * FIXME: Instances which are referenced by these methods are not added,
2084 * for example Array.Resize<int> for List<int>.Add ().
2086 add_extra_method (acfg, method);
2089 if (klass->delegate) {
2090 method = mono_get_delegate_invoke (klass);
2092 method = mono_marshal_get_delegate_invoke (method, NULL);
2094 add_method (acfg, method);
2098 * For ICollection<T>, add instances of the helper methods
2099 * in Array, since a T[] could be cast to ICollection<T>.
2101 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") &&
2102 (!strcmp(klass->name, "ICollection`1") || !strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IList`1") || !strcmp (klass->name, "IEnumerator`1"))) {
2103 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
2104 MonoClass *array_class = mono_bounded_array_class_get (tclass, 1, FALSE);
2108 if (!strcmp (klass->name, "IEnumerator`1"))
2109 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, "IEnumerable`1");
2111 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
2113 /* Add the T[]/InternalEnumerator class */
2114 if (!strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IEnumerator`1")) {
2118 while ((nclass = mono_class_get_nested_types (array_class->parent, &iter))) {
2119 if (!strcmp (nclass->name, "InternalEnumerator`1"))
2123 nclass = mono_class_inflate_generic_class (nclass, mono_generic_class_get_context (klass->generic_class));
2124 add_generic_class (acfg, nclass);
2128 while ((method = mono_class_get_methods (array_class, &iter))) {
2129 if (strstr (method->name, name_prefix))
2130 add_extra_method (acfg, method);
2133 g_free (name_prefix);
2136 * Add instance of Array.GetGenericValueImpl, which is called by the
2137 * array helper methods.
2138 * managed-to-native wrappers are not shared, so have to generate
2139 * these for ref types too.
2141 if (acfg->aot_opts.full_aot) {
2142 MonoGenericContext ctx;
2143 MonoType *args [16];
2144 static MonoMethod *get_method;
2146 if (get_method == NULL) {
2147 MonoClass *array_klass = mono_array_class_get (mono_defaults.int_class, 1)->parent;
2148 get_method = mono_class_get_method_from_name (array_klass, "GetGenericValueImpl", 2);
2152 memset (&ctx, 0, sizeof (ctx));
2153 args [0] = &tclass->byval_arg;
2154 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
2155 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (get_method, &ctx), TRUE, TRUE));
2160 /* Add an instance of GenericComparer<T> which is created dynamically by Comparer<T> */
2161 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "Comparer`1")) {
2162 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
2163 MonoClass *icomparable, *gcomparer;
2164 MonoGenericContext ctx;
2165 MonoType *args [16];
2167 memset (&ctx, 0, sizeof (ctx));
2169 icomparable = mono_class_from_name (mono_defaults.corlib, "System", "IComparable`1");
2170 g_assert (icomparable);
2171 args [0] = &tclass->byval_arg;
2172 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2174 if (mono_class_is_assignable_from (mono_class_inflate_generic_class (icomparable, &ctx), tclass)) {
2175 gcomparer = mono_class_from_name (mono_defaults.corlib, "System.Collections.Generic", "GenericComparer`1");
2176 g_assert (gcomparer);
2177 add_generic_class (acfg, mono_class_inflate_generic_class (gcomparer, &ctx));
2183 add_array_wrappers (MonoAotCompile *acfg, MonoClass *klass)
2187 mono_class_setup_methods (klass);
2188 for (i = 0; i < klass->method.count; ++i) {
2189 if (klass->methods [i]->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED)
2190 add_extra_method (acfg, klass->methods [i]);
2195 * add_generic_instances:
2197 * Add instances referenced by the METHODSPEC/TYPESPEC table.
2200 add_generic_instances (MonoAotCompile *acfg)
2205 MonoMethodHeader *header;
2206 MonoMethodSignature *sig;
2207 MonoGenericContext *context;
2209 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHODSPEC].rows; ++i) {
2210 token = MONO_TOKEN_METHOD_SPEC | (i + 1);
2211 method = mono_get_method (acfg->image, token, NULL);
2213 context = mono_method_get_context (method);
2214 if (context && ((context->class_inst && context->class_inst->is_open) ||
2215 (context->method_inst && context->method_inst->is_open)))
2218 if (method->klass->image != acfg->image)
2221 if (mono_method_is_generic_sharable_impl (method, FALSE))
2225 add_extra_method (acfg, method);
2228 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
2231 token = MONO_TOKEN_TYPE_SPEC | (i + 1);
2233 klass = mono_class_get (acfg->image, token);
2234 if (!klass || klass->rank)
2237 add_generic_class (acfg, klass);
2240 /* Add types of args/locals */
2241 for (i = 0; i < acfg->methods->len; ++i) {
2244 method = g_ptr_array_index (acfg->methods, i);
2246 sig = mono_method_signature (method);
2249 for (j = 0; j < sig->param_count; ++j)
2250 if (sig->params [j]->type == MONO_TYPE_GENERICINST)
2251 add_generic_class (acfg, mono_class_from_mono_type (sig->params [j]));
2254 header = mono_method_get_header (method);
2257 for (j = 0; j < header->num_locals; ++j)
2258 if (header->locals [j]->type == MONO_TYPE_GENERICINST)
2259 add_generic_class (acfg, mono_class_from_mono_type (header->locals [j]));
2263 if (acfg->image == mono_defaults.corlib) {
2264 /* Add GenericComparer<T> instances for primitive types for Enum.ToString () */
2265 MonoClass *klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericComparer`1");
2268 MonoGenericContext ctx;
2269 MonoType *args [16];
2271 memset (&ctx, 0, sizeof (ctx));
2273 args [0] = &mono_defaults.byte_class->byval_arg;
2274 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2275 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2277 args [0] = &mono_defaults.sbyte_class->byval_arg;
2278 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2279 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2281 args [0] = &mono_defaults.int16_class->byval_arg;
2282 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2283 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2285 args [0] = &mono_defaults.uint16_class->byval_arg;
2286 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2287 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2289 args [0] = &mono_defaults.int32_class->byval_arg;
2290 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2291 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2293 args [0] = &mono_defaults.uint32_class->byval_arg;
2294 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2295 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2297 args [0] = &mono_defaults.int64_class->byval_arg;
2298 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2299 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2301 args [0] = &mono_defaults.uint64_class->byval_arg;
2302 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2303 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2306 /* Add GenericEqualityComparer<T> instances for primitive types */
2307 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericEqualityComparer`1");
2310 MonoGenericContext ctx;
2311 MonoType *args [16];
2313 memset (&ctx, 0, sizeof (ctx));
2315 args [0] = &mono_defaults.byte_class->byval_arg;
2316 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2317 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2319 args [0] = &mono_defaults.sbyte_class->byval_arg;
2320 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2321 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2323 args [0] = &mono_defaults.int16_class->byval_arg;
2324 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2325 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2327 args [0] = &mono_defaults.uint16_class->byval_arg;
2328 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2329 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2331 args [0] = &mono_defaults.int32_class->byval_arg;
2332 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2333 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2335 args [0] = &mono_defaults.uint32_class->byval_arg;
2336 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2337 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2339 args [0] = &mono_defaults.int64_class->byval_arg;
2340 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2341 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2343 args [0] = &mono_defaults.uint64_class->byval_arg;
2344 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2345 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2347 args [0] = &mono_defaults.char_class->byval_arg;
2348 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2349 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2351 args [0] = &mono_defaults.boolean_class->byval_arg;
2352 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2353 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2355 args [0] = &mono_defaults.single_class->byval_arg;
2356 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2357 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2359 args [0] = &mono_defaults.double_class->byval_arg;
2360 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2361 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2365 /* Emit the array wrapper methods for arrays of primitive types */
2366 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.byte_class, 1));
2367 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.sbyte_class, 1));
2368 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.int16_class, 1));
2369 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.uint16_class, 1));
2370 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.int32_class, 1));
2371 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.uint32_class, 1));
2372 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.int64_class, 1));
2373 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.single_class, 1));
2374 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.double_class, 1));
2375 /* These are not handled by generic sharing */
2376 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.object_class, 1));
2377 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.string_class, 1));
2379 /* Add instances of Array.GetGenericValueImpl */
2381 MonoGenericContext ctx;
2382 MonoType *args [16];
2385 memset (&ctx, 0, sizeof (ctx));
2388 * managed-to-native wrappers are not shared, so have to generate
2389 * these for ref types too.
2391 klass = mono_array_class_get (mono_defaults.int_class, 1)->parent;
2392 method = mono_class_get_method_from_name (klass, "GetGenericValueImpl", 2);
2396 args [0] = &mono_defaults.string_class->byval_arg;
2397 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
2398 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (method, &ctx), TRUE, TRUE));
2405 * is_direct_callable:
2407 * Return whenever the method identified by JI is directly callable without
2408 * going through the PLT.
2411 is_direct_callable (MonoAotCompile *acfg, MonoMethod *method, MonoJumpInfo *patch_info)
2413 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
2414 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
2416 gboolean direct_callable = TRUE;
2418 if (direct_callable && !(!callee_cfg->has_got_slots && (callee_cfg->method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)))
2419 direct_callable = FALSE;
2420 if ((callee_cfg->method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) && (!method || method->wrapper_type != MONO_WRAPPER_SYNCHRONIZED))
2421 // FIXME: Maybe call the wrapper directly ?
2422 direct_callable = FALSE;
2424 if (direct_callable)
2433 * emit_and_reloc_code:
2435 * Emit the native code in CODE, handling relocations along the way. If GOT_ONLY
2436 * is true, calls are made through the GOT too. This is used for emitting trampolines
2437 * in full-aot mode, since calls made from trampolines couldn't go through the PLT,
2438 * since trampolines are needed to make PTL work.
2441 emit_and_reloc_code (MonoAotCompile *acfg, MonoMethod *method, guint8 *code, guint32 code_len, MonoJumpInfo *relocs, gboolean got_only)
2443 int i, pindex, start_index, method_index;
2445 MonoJumpInfo *patch_info;
2446 MonoMethodHeader *header;
2447 gboolean skip, direct_call;
2449 char direct_call_target [128];
2452 header = mono_method_get_header (method);
2454 method_index = get_method_index (acfg, method);
2457 /* Collect and sort relocations */
2458 patches = g_ptr_array_new ();
2459 for (patch_info = relocs; patch_info; patch_info = patch_info->next)
2460 g_ptr_array_add (patches, patch_info);
2461 g_ptr_array_sort (patches, compare_patches);
2464 for (i = 0; i < code_len; i++) {
2466 for (pindex = start_index; pindex < patches->len; ++pindex) {
2467 patch_info = g_ptr_array_index (patches, pindex);
2468 if (patch_info->ip.i >= i)
2472 #ifdef MONO_ARCH_AOT_SUPPORTED
2474 if (patch_info && (patch_info->ip.i == i) && (pindex < patches->len)) {
2475 start_index = pindex;
2477 switch (patch_info->type) {
2478 case MONO_PATCH_INFO_NONE:
2480 case MONO_PATCH_INFO_GOT_OFFSET: {
2483 arch_emit_got_offset (acfg, code + i, &code_size);
2486 patch_info->type = MONO_PATCH_INFO_NONE;
2491 * If this patch is a call, try emitting a direct call instead of
2492 * through a PLT entry. This is possible if the called method is in
2493 * the same assembly and requires no initialization.
2495 direct_call = FALSE;
2496 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
2497 if (!got_only && is_direct_callable (acfg, method, patch_info)) {
2498 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
2499 //printf ("DIRECT: %s %s\n", method ? mono_method_full_name (method, TRUE) : "", mono_method_full_name (callee_cfg->method, TRUE));
2501 sprintf (direct_call_target, "%sm_%x", acfg->temp_prefix, get_method_index (acfg, callee_cfg->orig_method));
2502 patch_info->type = MONO_PATCH_INFO_NONE;
2503 acfg->stats.direct_calls ++;
2506 acfg->stats.all_calls ++;
2509 if (!got_only && !direct_call) {
2510 int plt_offset = get_plt_offset (acfg, patch_info);
2511 if (plt_offset != -1) {
2512 /* This patch has a PLT entry, so we must emit a call to the PLT entry */
2514 sprintf (direct_call_target, "%sp_%d", acfg->temp_prefix, plt_offset);
2516 /* Nullify the patch */
2517 patch_info->type = MONO_PATCH_INFO_NONE;
2524 arch_emit_direct_call (acfg, direct_call_target, &call_size);
2529 got_slot = get_got_offset (acfg, patch_info);
2531 arch_emit_got_access (acfg, code + i, got_slot, &code_size);
2538 #endif /* MONO_ARCH_AOT_SUPPORTED */
2541 /* Find next patch */
2543 for (pindex = start_index; pindex < patches->len; ++pindex) {
2544 patch_info = g_ptr_array_index (patches, pindex);
2545 if (patch_info->ip.i >= i)
2549 /* Try to emit multiple bytes at once */
2550 if (pindex < patches->len && patch_info->ip.i > i) {
2551 emit_bytes (acfg, code + i, patch_info->ip.i - i);
2552 i = patch_info->ip.i - 1;
2554 emit_bytes (acfg, code + i, 1);
2563 * Modify SYMBOL so it only includes characters permissible in symbols.
2566 sanitize_symbol (char *symbol)
2568 int i, len = strlen (symbol);
2570 for (i = 0; i < len; ++i)
2571 if (!isalnum (symbol [i]) && (symbol [i] != '_'))
2576 get_debug_sym (MonoMethod *method, const char *prefix, GHashTable *cache)
2578 char *name1, *name2, *cached;
2579 int i, j, len, count;
2581 name1 = mono_method_full_name (method, TRUE);
2582 len = strlen (name1);
2583 name2 = malloc (strlen (prefix) + len + 16);
2584 memcpy (name2, prefix, strlen (prefix));
2585 j = strlen (prefix);
2586 for (i = 0; i < len; ++i) {
2587 if (isalnum (name1 [i])) {
2588 name2 [j ++] = name1 [i];
2589 } else if (name1 [i] == ' ' && name1 [i + 1] == '(' && name1 [i + 2] == ')') {
2591 } else if (name1 [i] == ',' && name1 [i + 1] == ' ') {
2594 } else if (name1 [i] == '(' || name1 [i] == ')' || name1 [i] == '>') {
2603 while (g_hash_table_lookup (cache, name2)) {
2604 sprintf (name2 + j, "_%d", count);
2608 cached = g_strdup (name2);
2609 g_hash_table_insert (cache, cached, cached);
2615 emit_method_code (MonoAotCompile *acfg, MonoCompile *cfg)
2620 char *debug_sym = NULL;
2622 int func_alignment = AOT_FUNC_ALIGNMENT;
2623 MonoMethodHeader *header;
2625 method = cfg->orig_method;
2626 code = cfg->native_code;
2627 header = mono_method_get_header (method);
2629 method_index = get_method_index (acfg, method);
2631 /* Emit unbox trampoline */
2632 if (acfg->aot_opts.full_aot && cfg->orig_method->klass->valuetype && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
2633 char call_target [256];
2635 if (!method->wrapper_type && !method->is_inflated) {
2636 g_assert (method->token);
2637 sprintf (symbol, "ut_%d", mono_metadata_token_index (method->token) - 1);
2639 sprintf (symbol, "ut_e_%d", get_method_index (acfg, method));
2642 emit_section_change (acfg, ".text", 0);
2643 emit_global (acfg, symbol, TRUE);
2644 emit_label (acfg, symbol);
2646 sprintf (call_target, "%sm_%x", acfg->temp_prefix, method_index);
2648 arch_emit_unbox_trampoline (acfg, cfg->orig_method, cfg->generic_sharing_context, call_target);
2651 /* Make the labels local */
2652 sprintf (symbol, "%sm_%x", acfg->temp_prefix, method_index);
2654 emit_alignment (acfg, func_alignment);
2655 emit_label (acfg, symbol);
2657 if (acfg->aot_opts.write_symbols) {
2659 * Write a C style symbol for every method, this has two uses:
2660 * - it works on platforms where the dwarf debugging info is not
2662 * - it allows the setting of breakpoints of aot-ed methods.
2664 debug_sym = get_debug_sym (method, "", acfg->method_label_hash);
2666 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
2667 emit_local_symbol (acfg, debug_sym, symbol, TRUE);
2668 emit_label (acfg, debug_sym);
2671 if (cfg->verbose_level > 0)
2672 g_print ("Method %s emitted as %s\n", mono_method_full_name (method, TRUE), symbol);
2674 acfg->stats.code_size += cfg->code_len;
2676 acfg->cfgs [method_index]->got_offset = acfg->got_offset;
2678 emit_and_reloc_code (acfg, method, code, cfg->code_len, cfg->patch_info, FALSE);
2682 if (acfg->aot_opts.write_symbols) {
2683 emit_symbol_size (acfg, debug_sym, ".");
2687 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
2688 emit_label (acfg, symbol);
2694 * Encode PATCH_INFO into its disk representation.
2697 encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info, guint8 *buf, guint8 **endbuf)
2701 switch (patch_info->type) {
2702 case MONO_PATCH_INFO_NONE:
2704 case MONO_PATCH_INFO_IMAGE:
2705 encode_value (get_image_index (acfg, patch_info->data.image), p, &p);
2707 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
2709 case MONO_PATCH_INFO_METHOD_REL:
2710 encode_value ((gint)patch_info->data.offset, p, &p);
2712 case MONO_PATCH_INFO_SWITCH: {
2713 gpointer *table = (gpointer *)patch_info->data.table->table;
2716 encode_value (patch_info->data.table->table_size, p, &p);
2717 for (k = 0; k < patch_info->data.table->table_size; k++)
2718 encode_value ((int)(gssize)table [k], p, &p);
2721 case MONO_PATCH_INFO_METHODCONST:
2722 case MONO_PATCH_INFO_METHOD:
2723 case MONO_PATCH_INFO_METHOD_JUMP:
2724 case MONO_PATCH_INFO_ICALL_ADDR:
2725 case MONO_PATCH_INFO_METHOD_RGCTX:
2726 encode_method_ref (acfg, patch_info->data.method, p, &p);
2728 case MONO_PATCH_INFO_INTERNAL_METHOD:
2729 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
2730 guint32 len = strlen (patch_info->data.name);
2732 encode_value (len, p, &p);
2734 memcpy (p, patch_info->data.name, len);
2739 case MONO_PATCH_INFO_LDSTR: {
2740 guint32 image_index = get_image_index (acfg, patch_info->data.token->image);
2741 guint32 token = patch_info->data.token->token;
2742 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_STRING);
2743 encode_value (image_index, p, &p);
2744 encode_value (patch_info->data.token->token - MONO_TOKEN_STRING, p, &p);
2747 case MONO_PATCH_INFO_RVA:
2748 case MONO_PATCH_INFO_DECLSEC:
2749 case MONO_PATCH_INFO_LDTOKEN:
2750 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2751 encode_value (get_image_index (acfg, patch_info->data.token->image), p, &p);
2752 encode_value (patch_info->data.token->token, p, &p);
2753 encode_value (patch_info->data.token->has_context, p, &p);
2754 if (patch_info->data.token->has_context)
2755 encode_generic_context (acfg, &patch_info->data.token->context, p, &p);
2757 case MONO_PATCH_INFO_EXC_NAME: {
2758 MonoClass *ex_class;
2761 mono_class_from_name (mono_defaults.exception_class->image,
2762 "System", patch_info->data.target);
2763 g_assert (ex_class);
2764 encode_klass_ref (acfg, ex_class, p, &p);
2767 case MONO_PATCH_INFO_R4:
2768 encode_value (*((guint32 *)patch_info->data.target), p, &p);
2770 case MONO_PATCH_INFO_R8:
2771 encode_value (*((guint32 *)patch_info->data.target), p, &p);
2772 encode_value (*(((guint32 *)patch_info->data.target) + 1), p, &p);
2774 case MONO_PATCH_INFO_VTABLE:
2775 case MONO_PATCH_INFO_CLASS:
2776 case MONO_PATCH_INFO_IID:
2777 case MONO_PATCH_INFO_ADJUSTED_IID:
2778 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
2780 case MONO_PATCH_INFO_CLASS_INIT:
2781 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
2782 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
2784 case MONO_PATCH_INFO_FIELD:
2785 case MONO_PATCH_INFO_SFLDA:
2786 encode_field_info (acfg, patch_info->data.field, p, &p);
2788 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
2790 case MONO_PATCH_INFO_RGCTX_FETCH: {
2791 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
2793 encode_method_ref (acfg, entry->method, p, &p);
2794 encode_value (entry->in_mrgctx, p, &p);
2795 encode_value (entry->info_type, p, &p);
2796 encode_value (entry->data->type, p, &p);
2797 encode_patch (acfg, entry->data, p, &p);
2800 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
2801 case MONO_PATCH_INFO_MONITOR_ENTER:
2802 case MONO_PATCH_INFO_MONITOR_EXIT:
2805 g_warning ("unable to handle jump info %d", patch_info->type);
2806 g_assert_not_reached ();
2813 encode_patch_list (MonoAotCompile *acfg, GPtrArray *patches, int n_patches, int first_got_offset, guint8 *buf, guint8 **endbuf)
2816 guint32 pindex, offset;
2817 MonoJumpInfo *patch_info;
2819 encode_value (n_patches, p, &p);
2821 for (pindex = 0; pindex < patches->len; ++pindex) {
2822 patch_info = g_ptr_array_index (patches, pindex);
2824 if (patch_info->type == MONO_PATCH_INFO_NONE)
2828 offset = get_got_offset (acfg, patch_info);
2829 encode_value (offset, p, &p);
2836 emit_method_info (MonoAotCompile *acfg, MonoCompile *cfg)
2840 int pindex, buf_size, n_patches;
2844 MonoJumpInfo *patch_info;
2845 MonoMethodHeader *header;
2846 guint32 method_index;
2848 guint32 first_got_offset;
2850 method = cfg->orig_method;
2851 code = cfg->native_code;
2852 header = mono_method_get_header (method);
2854 method_index = get_method_index (acfg, method);
2856 /* Make the labels local */
2857 sprintf (symbol, "%sm_%x_p", acfg->temp_prefix, method_index);
2859 /* Sort relocations */
2860 patches = g_ptr_array_new ();
2861 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next)
2862 g_ptr_array_add (patches, patch_info);
2863 g_ptr_array_sort (patches, compare_patches);
2865 first_got_offset = acfg->cfgs [method_index]->got_offset;
2867 /**********************/
2868 /* Encode method info */
2869 /**********************/
2871 buf_size = (patches->len < 1000) ? 40960 : 40960 + (patches->len * 64);
2872 p = buf = g_malloc (buf_size);
2874 if (mono_class_get_cctor (method->klass))
2875 encode_klass_ref (acfg, method->klass, p, &p);
2877 /* Not needed when loading the method */
2878 encode_value (0, p, &p);
2881 if (cfg->opt & MONO_OPT_SHARED) {
2882 encode_value (g_list_length (cfg->ldstr_list), p, &p);
2883 for (l = cfg->ldstr_list; l; l = l->next) {
2884 encode_value ((long)l->data, p, &p);
2888 /* Used only in shared mode */
2889 g_assert (!cfg->ldstr_list);
2892 for (pindex = 0; pindex < patches->len; ++pindex) {
2893 patch_info = g_ptr_array_index (patches, pindex);
2895 if ((patch_info->type == MONO_PATCH_INFO_GOT_OFFSET) ||
2896 (patch_info->type == MONO_PATCH_INFO_NONE)) {
2897 patch_info->type = MONO_PATCH_INFO_NONE;
2902 if ((patch_info->type == MONO_PATCH_INFO_IMAGE) && (patch_info->data.image == acfg->image)) {
2903 /* Stored in a GOT slot initialized at module load time */
2904 patch_info->type = MONO_PATCH_INFO_NONE;
2908 if (is_plt_patch (patch_info)) {
2909 /* Calls are made through the PLT */
2910 patch_info->type = MONO_PATCH_INFO_NONE;
2918 g_assert (cfg->has_got_slots);
2920 encode_patch_list (acfg, patches, n_patches, first_got_offset, p, &p);
2922 acfg->stats.info_size += p - buf;
2924 /* Emit method info */
2926 emit_label (acfg, symbol);
2928 g_assert (p - buf < buf_size);
2929 emit_bytes (acfg, buf, p - buf);
2934 get_unwind_info_offset (MonoAotCompile *acfg, guint8 *encoded, guint32 encoded_len)
2936 guint32 cache_index;
2939 /* Reuse the unwind module to canonize and store unwind info entries */
2940 cache_index = mono_cache_unwind_info (encoded, encoded_len);
2942 /* Use +/- 1 to distinguish 0s from missing entries */
2943 offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1)));
2951 * It would be easier to use assembler symbols, but the caller needs an
2954 offset = acfg->unwind_info_offset;
2955 g_hash_table_insert (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1), GUINT_TO_POINTER (offset + 1));
2956 g_ptr_array_add (acfg->unwind_ops, GUINT_TO_POINTER (cache_index));
2959 encode_value (encoded_len, p, &p);
2961 acfg->unwind_info_offset += encoded_len + (p - buf);
2967 emit_exception_debug_info (MonoAotCompile *acfg, MonoCompile *cfg)
2970 int k, buf_size, method_index;
2971 guint32 debug_info_size;
2974 MonoMethodHeader *header;
2975 guint8 *p, *buf, *debug_info;
2976 MonoJitInfo *jinfo = cfg->jit_info;
2978 gboolean use_unwind_ops = FALSE;
2980 method = cfg->orig_method;
2981 code = cfg->native_code;
2982 header = mono_method_get_header (method);
2984 method_index = get_method_index (acfg, method);
2986 /* Make the labels local */
2987 sprintf (symbol, "%se_%x_p", acfg->temp_prefix, method_index);
2989 if (!acfg->aot_opts.nodebug) {
2990 mono_debug_serialize_debug_info (cfg, &debug_info, &debug_info_size);
2993 debug_info_size = 0;
2996 buf_size = header->num_clauses * 256 + debug_info_size + 1024;
2997 p = buf = g_malloc (buf_size);
2999 #ifdef MONO_ARCH_HAVE_XP_UNWIND
3000 use_unwind_ops = cfg->unwind_ops != NULL;
3003 flags = (jinfo->has_generic_jit_info ? 1 : 0) | (use_unwind_ops ? 2 : 0) | (header->num_clauses ? 4 : 0);
3005 encode_value (jinfo->code_size, p, &p);
3006 encode_value (flags, p, &p);
3008 if (use_unwind_ops) {
3009 guint32 encoded_len;
3013 * This is a duplicate of the data in the .debug_frame section, but that
3014 * section cannot be accessed using the dl interface.
3016 encoded = mono_unwind_ops_encode (cfg->unwind_ops, &encoded_len);
3017 encode_value (get_unwind_info_offset (acfg, encoded, encoded_len), p, &p);
3020 encode_value (jinfo->used_regs, p, &p);
3023 /* Exception table */
3024 if (jinfo->num_clauses)
3025 encode_value (jinfo->num_clauses, p, &p);
3027 for (k = 0; k < jinfo->num_clauses; ++k) {
3028 MonoJitExceptionInfo *ei = &jinfo->clauses [k];
3030 encode_value (ei->flags, p, &p);
3031 encode_value (ei->exvar_offset, p, &p);
3033 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER)
3034 encode_value ((gint)((guint8*)ei->data.filter - code), p, &p);
3036 if (ei->data.catch_class) {
3037 encode_value (1, p, &p);
3038 encode_klass_ref (acfg, ei->data.catch_class, p, &p);
3040 encode_value (0, p, &p);
3044 encode_value ((gint)((guint8*)ei->try_start - code), p, &p);
3045 encode_value ((gint)((guint8*)ei->try_end - code), p, &p);
3046 encode_value ((gint)((guint8*)ei->handler_start - code), p, &p);
3049 if (jinfo->has_generic_jit_info) {
3050 MonoGenericJitInfo *gi = mono_jit_info_get_generic_jit_info (jinfo);
3052 encode_value (gi->has_this ? 1 : 0, p, &p);
3053 encode_value (gi->this_reg, p, &p);
3054 encode_value (gi->this_offset, p, &p);
3057 * Need to encode jinfo->method too, since it is not equal to 'method'
3058 * when using generic sharing.
3060 encode_method_ref (acfg, jinfo->method, p, &p);
3063 g_assert (debug_info_size < buf_size);
3065 encode_value (debug_info_size, p, &p);
3066 if (debug_info_size) {
3067 memcpy (p, debug_info, debug_info_size);
3068 p += debug_info_size;
3069 g_free (debug_info);
3072 acfg->stats.ex_info_size += p - buf;
3076 emit_label (acfg, symbol);
3078 g_assert (p - buf < buf_size);
3079 emit_bytes (acfg, buf, p - buf);
3084 emit_klass_info (MonoAotCompile *acfg, guint32 token)
3086 MonoClass *klass = mono_class_get (acfg->image, token);
3090 gboolean no_special_static, cant_encode;
3091 gpointer iter = NULL;
3093 buf_size = 10240 + (klass->vtable_size * 16);
3094 p = buf = g_malloc (buf_size);
3098 mono_class_init (klass);
3100 mono_class_get_nested_types (klass, &iter);
3101 g_assert (klass->nested_classes_inited);
3103 mono_class_setup_vtable (klass);
3106 * Emit all the information which is required for creating vtables so
3107 * the runtime does not need to create the MonoMethod structures which
3108 * take up a lot of space.
3111 no_special_static = !mono_class_has_special_static_fields (klass);
3113 /* Check whenever we have enough info to encode the vtable */
3114 cant_encode = FALSE;
3115 for (i = 0; i < klass->vtable_size; ++i) {
3116 MonoMethod *cm = klass->vtable [i];
3118 if (cm && mono_method_signature (cm)->is_inflated && !g_hash_table_lookup (acfg->token_info_hash, cm))
3122 if (klass->generic_container || cant_encode) {
3123 encode_value (-1, p, &p);
3125 encode_value (klass->vtable_size, p, &p);
3126 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);
3127 if (klass->has_cctor)
3128 encode_method_ref (acfg, mono_class_get_cctor (klass), p, &p);
3129 if (klass->has_finalize)
3130 encode_method_ref (acfg, mono_class_get_finalizer (klass), p, &p);
3132 encode_value (klass->instance_size, p, &p);
3133 encode_value (mono_class_data_size (klass), p, &p);
3134 encode_value (klass->packing_size, p, &p);
3135 encode_value (klass->min_align, p, &p);
3137 for (i = 0; i < klass->vtable_size; ++i) {
3138 MonoMethod *cm = klass->vtable [i];
3141 encode_method_ref (acfg, cm, p, &p);
3143 encode_value (0, p, &p);
3147 acfg->stats.class_info_size += p - buf;
3150 sprintf (symbol, "%sK_I_%x", acfg->temp_prefix, token - MONO_TOKEN_TYPE_DEF - 1);
3151 emit_label (acfg, symbol);
3153 g_assert (p - buf < buf_size);
3154 emit_bytes (acfg, buf, p - buf);
3159 * Calls made from AOTed code are routed through a table of jumps similar to the
3160 * ELF PLT (Program Linkage Table). The differences are the following:
3161 * - the ELF PLT entries make an indirect jump though the GOT so they expect the
3162 * GOT pointer to be in EBX. We want to avoid this, so our table contains direct
3163 * jumps. This means the jumps need to be patched when the address of the callee is
3164 * known. Initially the PLT entries jump to code which transfers control to the
3165 * AOT runtime through the first PLT entry.
3168 emit_plt (MonoAotCompile *acfg)
3174 cache = g_hash_table_new (g_str_hash, g_str_equal);
3177 sprintf (symbol, "plt");
3179 emit_section_change (acfg, ".text", 0);
3180 emit_global (acfg, symbol, TRUE);
3182 /* This section will be made read-write by the AOT loader */
3183 emit_alignment (acfg, mono_pagesize ());
3185 emit_alignment (acfg, 16);
3187 emit_label (acfg, symbol);
3188 emit_label (acfg, acfg->plt_symbol);
3190 for (i = 0; i < acfg->plt_offset; ++i) {
3192 char *debug_sym = NULL;
3194 sprintf (label, "%sp_%d", acfg->temp_prefix, i);
3195 emit_label (acfg, label);
3197 if (acfg->aot_opts.write_symbols) {
3198 MonoJumpInfo *ji = g_hash_table_lookup (acfg->plt_offset_to_patch, GUINT_TO_POINTER (i));
3202 case MONO_PATCH_INFO_METHOD:
3203 debug_sym = get_debug_sym (ji->data.method, "plt_", cache);
3205 case MONO_PATCH_INFO_INTERNAL_METHOD:
3206 debug_sym = g_strdup_printf ("plt__jit_icall_%s", ji->data.name);
3208 case MONO_PATCH_INFO_CLASS_INIT:
3209 debug_sym = g_strdup_printf ("plt__class_init_%s", mono_type_get_name (&ji->data.klass->byval_arg));
3210 sanitize_symbol (debug_sym);
3212 case MONO_PATCH_INFO_RGCTX_FETCH:
3213 debug_sym = g_strdup_printf ("plt__rgctx_fetch_%d", acfg->label_generator ++);
3215 case MONO_PATCH_INFO_ICALL_ADDR: {
3216 char *s = get_debug_sym (ji->data.method, "", cache);
3218 debug_sym = g_strdup_printf ("plt__icall_native_%s", s);
3222 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
3223 debug_sym = g_strdup_printf ("plt__jit_icall_native_%s", ji->data.name);
3225 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
3226 debug_sym = g_strdup_printf ("plt__generic_class_init");
3233 emit_local_symbol (acfg, debug_sym, NULL, TRUE);
3234 emit_label (acfg, debug_sym);
3240 * The first plt entry is used to transfer code to the AOT loader.
3242 arch_emit_plt_entry (acfg, i);
3245 emit_symbol_size (acfg, debug_sym, ".");
3250 emit_symbol_size (acfg, acfg->plt_symbol, ".");
3252 sprintf (symbol, "plt_end");
3253 emit_global (acfg, symbol, TRUE);
3254 emit_label (acfg, symbol);
3256 g_hash_table_destroy (cache);
3259 static G_GNUC_UNUSED void
3260 emit_trampoline (MonoAotCompile *acfg, const char *name, guint8 *code,
3261 guint32 code_size, int got_offset, MonoJumpInfo *ji, GSList *unwind_ops)
3263 char start_symbol [256];
3266 MonoJumpInfo *patch_info;
3272 sprintf (start_symbol, "%s", name);
3274 emit_section_change (acfg, ".text", 0);
3275 emit_global (acfg, start_symbol, TRUE);
3276 emit_alignment (acfg, 16);
3277 emit_label (acfg, start_symbol);
3279 sprintf (symbol, "%snamed_%s", acfg->temp_prefix, name);
3280 emit_label (acfg, symbol);
3283 * The code should access everything through the GOT, so we pass
3286 emit_and_reloc_code (acfg, NULL, code, code_size, ji, TRUE);
3288 emit_symbol_size (acfg, start_symbol, ".");
3292 /* Sort relocations */
3293 patches = g_ptr_array_new ();
3294 for (patch_info = ji; patch_info; patch_info = patch_info->next)
3295 if (patch_info->type != MONO_PATCH_INFO_NONE)
3296 g_ptr_array_add (patches, patch_info);
3297 g_ptr_array_sort (patches, compare_patches);
3299 buf_size = patches->len * 128 + 128;
3300 buf = g_malloc (buf_size);
3303 encode_patch_list (acfg, patches, patches->len, got_offset, p, &p);
3304 g_assert (p - buf < buf_size);
3306 sprintf (symbol, "%s_p", name);
3308 emit_section_change (acfg, ".text", 0);
3309 emit_global (acfg, symbol, FALSE);
3310 emit_label (acfg, symbol);
3312 emit_bytes (acfg, buf, p - buf);
3314 /* Emit debug info */
3318 sprintf (symbol, "%s", name);
3319 sprintf (symbol2, "%snamed_%s", acfg->temp_prefix, name);
3322 mono_dwarf_writer_emit_trampoline (acfg->dwarf, symbol, symbol2, NULL, NULL, code_size, unwind_ops);
3327 emit_trampolines (MonoAotCompile *acfg)
3330 int i, tramp_got_offset;
3331 MonoAotTrampoline ntype;
3332 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
3340 if (!acfg->aot_opts.full_aot)
3343 g_assert (acfg->image->assembly);
3345 /* Currently, we only emit most trampolines into the mscorlib AOT image. */
3346 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
3347 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
3349 * Emit the generic trampolines.
3351 * We could save some code by treating the generic trampolines as a wrapper
3352 * method, but that approach has its own complexities, so we choose the simpler
3355 for (tramp_type = 0; tramp_type < MONO_TRAMPOLINE_NUM; ++tramp_type) {
3356 code = mono_arch_create_trampoline_code_full (tramp_type, &code_size, &ji, &unwind_ops, TRUE);
3358 /* Emit trampoline code */
3360 sprintf (symbol, "generic_trampoline_%d", tramp_type);
3362 emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, unwind_ops);
3365 code = mono_arch_get_nullified_class_init_trampoline (&code_size);
3366 emit_trampoline (acfg, "nullified_class_init_trampoline", code, code_size, acfg->got_offset, NULL, NULL);
3367 #if defined(TARGET_AMD64) && defined(MONO_ARCH_MONITOR_OBJECT_REG)
3368 code = mono_arch_create_monitor_enter_trampoline_full (&code_size, &ji, TRUE);
3369 emit_trampoline (acfg, "monitor_enter_trampoline", code, code_size, acfg->got_offset, ji, NULL);
3370 code = mono_arch_create_monitor_exit_trampoline_full (&code_size, &ji, TRUE);
3371 emit_trampoline (acfg, "monitor_exit_trampoline", code, code_size, acfg->got_offset, ji, NULL);
3374 code = mono_arch_create_generic_class_init_trampoline_full (&code_size, &ji, TRUE);
3375 emit_trampoline (acfg, "generic_class_init_trampoline", code, code_size, acfg->got_offset, ji, NULL);
3377 /* Emit the exception related code pieces */
3378 code = mono_arch_get_restore_context_full (&code_size, &ji, TRUE);
3379 emit_trampoline (acfg, "restore_context", code, code_size, acfg->got_offset, ji, NULL);
3380 code = mono_arch_get_call_filter_full (&code_size, &ji, TRUE);
3381 emit_trampoline (acfg, "call_filter", code, code_size, acfg->got_offset, ji, NULL);
3382 code = mono_arch_get_throw_exception_full (&code_size, &ji, TRUE);
3383 emit_trampoline (acfg, "throw_exception", code, code_size, acfg->got_offset, ji, NULL);
3384 code = mono_arch_get_rethrow_exception_full (&code_size, &ji, TRUE);
3385 emit_trampoline (acfg, "rethrow_exception", code, code_size, acfg->got_offset, ji, NULL);
3386 code = mono_arch_get_throw_exception_by_name_full (&code_size, &ji, TRUE);
3387 emit_trampoline (acfg, "throw_exception_by_name", code, code_size, acfg->got_offset, ji, NULL);
3388 code = mono_arch_get_throw_corlib_exception_full (&code_size, &ji, TRUE);
3389 emit_trampoline (acfg, "throw_corlib_exception", code, code_size, acfg->got_offset, ji, NULL);
3391 #if defined(TARGET_AMD64)
3392 code = mono_arch_get_throw_pending_exception_full (&code_size, &ji, TRUE);
3393 emit_trampoline (acfg, "throw_pending_exception", code, code_size, acfg->got_offset, ji, NULL);
3396 for (i = 0; i < 128; ++i) {
3399 offset = MONO_RGCTX_SLOT_MAKE_RGCTX (i);
3400 code = mono_arch_create_rgctx_lazy_fetch_trampoline_full (offset, &code_size, &ji, TRUE);
3401 sprintf (symbol, "rgctx_fetch_trampoline_%u", offset);
3402 emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, NULL);
3404 offset = MONO_RGCTX_SLOT_MAKE_MRGCTX (i);
3405 code = mono_arch_create_rgctx_lazy_fetch_trampoline_full (offset, &code_size, &ji, TRUE);
3406 sprintf (symbol, "rgctx_fetch_trampoline_%u", offset);
3407 emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, NULL);
3413 /* delegate_invoke_impl trampolines */
3414 l = mono_arch_get_delegate_invoke_impls ();
3416 MonoAotTrampInfo *info = l->data;
3418 emit_trampoline (acfg, info->name, info->code, info->code_size, acfg->got_offset, NULL, NULL);
3423 #endif /* #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES */
3425 /* Emit trampolines which are numerous */
3428 * These include the following:
3429 * - specific trampolines
3430 * - static rgctx invoke trampolines
3432 * These trampolines have the same code, they are parameterized by GOT
3434 * They are defined in this file, in the arch_... routines instead of
3435 * in tramp-<ARCH>.c, since it is easier to do it this way.
3439 * When running in aot-only mode, we can't create specific trampolines at
3440 * runtime, so we create a few, and save them in the AOT file.
3441 * Normal trampolines embed their argument as a literal inside the
3442 * trampoline code, we can't do that here, so instead we embed an offset
3443 * which needs to be added to the trampoline address to get the address of
3444 * the GOT slot which contains the argument value.
3445 * The generated trampolines jump to the generic trampolines using another
3446 * GOT slot, which will be setup by the AOT loader to point to the
3447 * generic trampoline code of the given type.
3451 * FIXME: Maybe we should use more specific trampolines (i.e. one class init for
3455 emit_section_change (acfg, ".text", 0);
3457 tramp_got_offset = acfg->got_offset;
3459 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype) {
3461 case MONO_AOT_TRAMP_SPECIFIC:
3462 sprintf (symbol, "specific_trampolines");
3464 case MONO_AOT_TRAMP_STATIC_RGCTX:
3465 sprintf (symbol, "static_rgctx_trampolines");
3467 case MONO_AOT_TRAMP_IMT_THUNK:
3468 sprintf (symbol, "imt_thunks");
3471 g_assert_not_reached ();
3474 emit_global (acfg, symbol, TRUE);
3475 emit_alignment (acfg, 16);
3476 emit_label (acfg, symbol);
3478 acfg->trampoline_got_offset_base [ntype] = tramp_got_offset;
3480 for (i = 0; i < acfg->num_trampolines [ntype]; ++i) {
3484 case MONO_AOT_TRAMP_SPECIFIC:
3485 arch_emit_specific_trampoline (acfg, tramp_got_offset, &tramp_size);
3486 tramp_got_offset += 2;
3488 case MONO_AOT_TRAMP_STATIC_RGCTX:
3489 arch_emit_static_rgctx_trampoline (acfg, tramp_got_offset, &tramp_size);
3490 tramp_got_offset += 2;
3492 case MONO_AOT_TRAMP_IMT_THUNK:
3493 arch_emit_imt_thunk (acfg, tramp_got_offset, &tramp_size);
3494 tramp_got_offset += 1;
3497 g_assert_not_reached ();
3500 if (!acfg->trampoline_size [ntype]) {
3501 g_assert (tramp_size);
3502 acfg->trampoline_size [ntype] = tramp_size;
3507 /* Reserve some entries at the end of the GOT for our use */
3508 acfg->num_trampoline_got_entries = tramp_got_offset - acfg->got_offset;
3511 acfg->got_offset += acfg->num_trampoline_got_entries;
3515 str_begins_with (const char *str1, const char *str2)
3517 int len = strlen (str2);
3518 return strncmp (str1, str2, len) == 0;
3522 mono_aot_parse_options (const char *aot_options, MonoAotOptions *opts)
3524 gchar **args, **ptr;
3526 args = g_strsplit (aot_options ? aot_options : "", ",", -1);
3527 for (ptr = args; ptr && *ptr; ptr ++) {
3528 const char *arg = *ptr;
3530 if (str_begins_with (arg, "outfile=")) {
3531 opts->outfile = g_strdup (arg + strlen ("outfile="));
3532 } else if (str_begins_with (arg, "save-temps")) {
3533 opts->save_temps = TRUE;
3534 } else if (str_begins_with (arg, "keep-temps")) {
3535 opts->save_temps = TRUE;
3536 } else if (str_begins_with (arg, "write-symbols")) {
3537 opts->write_symbols = TRUE;
3538 } else if (str_begins_with (arg, "metadata-only")) {
3539 opts->metadata_only = TRUE;
3540 } else if (str_begins_with (arg, "bind-to-runtime-version")) {
3541 opts->bind_to_runtime_version = TRUE;
3542 } else if (str_begins_with (arg, "full")) {
3543 opts->full_aot = TRUE;
3544 } else if (str_begins_with (arg, "threads=")) {
3545 opts->nthreads = atoi (arg + strlen ("threads="));
3546 } else if (str_begins_with (arg, "static")) {
3547 opts->static_link = TRUE;
3548 opts->no_dlsym = TRUE;
3549 } else if (str_begins_with (arg, "asmonly")) {
3550 opts->asm_only = TRUE;
3551 } else if (str_begins_with (arg, "asmwriter")) {
3552 opts->asm_writer = TRUE;
3553 } else if (str_begins_with (arg, "nodebug")) {
3554 opts->nodebug = TRUE;
3555 } else if (str_begins_with (arg, "ntrampolines=")) {
3556 opts->ntrampolines = atoi (arg + strlen ("ntrampolines="));
3557 } else if (str_begins_with (arg, "tool-prefix=")) {
3558 opts->tool_prefix = g_strdup (arg + strlen ("tool-prefix="));
3560 fprintf (stderr, "AOT : Unknown argument '%s'.\n", arg);
3569 add_token_info_hash (gpointer key, gpointer value, gpointer user_data)
3571 MonoMethod *method = (MonoMethod*)key;
3572 MonoJumpInfoToken *ji = (MonoJumpInfoToken*)value;
3573 MonoJumpInfoToken *new_ji = g_new0 (MonoJumpInfoToken, 1);
3574 MonoAotCompile *acfg = user_data;
3576 new_ji->image = ji->image;
3577 new_ji->token = ji->token;
3578 g_hash_table_insert (acfg->token_info_hash, method, new_ji);
3582 can_encode_class (MonoAotCompile *acfg, MonoClass *klass)
3584 if (klass->type_token)
3586 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
3589 return can_encode_class (acfg, klass->element_class);
3594 can_encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
3596 switch (patch_info->type) {
3597 case MONO_PATCH_INFO_METHOD:
3598 case MONO_PATCH_INFO_METHODCONST: {
3599 MonoMethod *method = patch_info->data.method;
3601 if (method->wrapper_type) {
3602 switch (method->wrapper_type) {
3603 case MONO_WRAPPER_NONE:
3604 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
3605 case MONO_WRAPPER_XDOMAIN_INVOKE:
3606 case MONO_WRAPPER_STFLD:
3607 case MONO_WRAPPER_LDFLD:
3608 case MONO_WRAPPER_LDFLDA:
3609 case MONO_WRAPPER_LDFLD_REMOTE:
3610 case MONO_WRAPPER_STFLD_REMOTE:
3611 case MONO_WRAPPER_STELEMREF:
3612 case MONO_WRAPPER_ISINST:
3613 case MONO_WRAPPER_PROXY_ISINST:
3614 case MONO_WRAPPER_ALLOC:
3615 case MONO_WRAPPER_REMOTING_INVOKE:
3616 case MONO_WRAPPER_UNKNOWN:
3619 //printf ("Skip (wrapper call): %d -> %s\n", patch_info->type, mono_method_full_name (patch_info->data.method, TRUE));
3623 if (!method->token) {
3624 /* The method is part of a constructed type like Int[,].Set (). */
3625 if (!g_hash_table_lookup (acfg->token_info_hash, method)) {
3626 if (method->klass->rank)
3634 case MONO_PATCH_INFO_VTABLE:
3635 case MONO_PATCH_INFO_CLASS_INIT:
3636 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3637 case MONO_PATCH_INFO_CLASS:
3638 case MONO_PATCH_INFO_IID:
3639 case MONO_PATCH_INFO_ADJUSTED_IID:
3640 if (!can_encode_class (acfg, patch_info->data.klass)) {
3641 //printf ("Skip: %s\n", mono_type_full_name (&patch_info->data.klass->byval_arg));
3645 case MONO_PATCH_INFO_RGCTX_FETCH: {
3646 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
3648 if (!can_encode_patch (acfg, entry->data))
3660 add_generic_class (MonoAotCompile *acfg, MonoClass *klass);
3665 * AOT compile a given method.
3666 * This function might be called by multiple threads, so it must be thread-safe.
3669 compile_method (MonoAotCompile *acfg, MonoMethod *method)
3672 MonoJumpInfo *patch_info;
3675 MonoMethod *wrapped;
3677 if (acfg->aot_opts.metadata_only)
3680 mono_acfg_lock (acfg);
3681 index = get_method_index (acfg, method);
3682 mono_acfg_unlock (acfg);
3684 /* fixme: maybe we can also precompile wrapper methods */
3685 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
3686 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
3687 (method->flags & METHOD_ATTRIBUTE_ABSTRACT)) {
3688 //printf ("Skip (impossible): %s\n", mono_method_full_name (method, TRUE));
3692 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
3695 wrapped = mono_marshal_method_from_wrapper (method);
3696 if (wrapped && (wrapped->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && wrapped->is_generic)
3697 // FIXME: The wrapper should be generic too, but it is not
3700 InterlockedIncrement (&acfg->stats.mcount);
3703 if (method->is_generic || method->klass->generic_container) {
3704 InterlockedIncrement (&acfg->stats.genericcount);
3709 //acfg->aot_opts.print_skipped_methods = TRUE;
3712 * Since these methods are the only ones which are compiled with
3713 * AOT support, and they are not used by runtime startup/shutdown code,
3714 * the runtime will not see AOT methods during AOT compilation,so it
3715 * does not need to support them by creating a fake GOT etc.
3717 cfg = mini_method_compile (method, acfg->opts, mono_get_root_domain (), FALSE, TRUE, 0);
3718 if (cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
3719 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3720 InterlockedIncrement (&acfg->stats.genericcount);
3723 if (cfg->exception_type != MONO_EXCEPTION_NONE) {
3724 /* Let the exception happen at runtime */
3728 if (cfg->disable_aot) {
3729 if (acfg->aot_opts.print_skipped_methods)
3730 printf ("Skip (disabled): %s\n", mono_method_full_name (method, TRUE));
3731 InterlockedIncrement (&acfg->stats.ocount);
3732 mono_destroy_compile (cfg);
3736 /* Nullify patches which need no aot processing */
3737 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3738 switch (patch_info->type) {
3739 case MONO_PATCH_INFO_LABEL:
3740 case MONO_PATCH_INFO_BB:
3741 patch_info->type = MONO_PATCH_INFO_NONE;
3748 /* Collect method->token associations from the cfg */
3749 mono_acfg_lock (acfg);
3750 g_hash_table_foreach (cfg->token_info_hash, add_token_info_hash, acfg);
3751 mono_acfg_unlock (acfg);
3754 * Check for absolute addresses.
3757 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3758 switch (patch_info->type) {
3759 case MONO_PATCH_INFO_ABS:
3760 /* unable to handle this */
3769 if (acfg->aot_opts.print_skipped_methods)
3770 printf ("Skip (abs call): %s\n", mono_method_full_name (method, TRUE));
3771 InterlockedIncrement (&acfg->stats.abscount);
3772 mono_destroy_compile (cfg);
3776 /* Lock for the rest of the code */
3777 mono_acfg_lock (acfg);
3780 * Check for methods/klasses we can't encode.
3783 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3784 if (!can_encode_patch (acfg, patch_info))
3789 if (acfg->aot_opts.print_skipped_methods)
3790 printf ("Skip (patches): %s\n", mono_method_full_name (method, TRUE));
3791 acfg->stats.ocount++;
3792 mono_destroy_compile (cfg);
3793 mono_acfg_unlock (acfg);
3797 /* Adds generic instances referenced by this method */
3798 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3799 switch (patch_info->type) {
3800 case MONO_PATCH_INFO_METHOD: {
3801 MonoMethod *m = patch_info->data.method;
3802 if (m->is_inflated) {
3803 if (!(mono_class_generic_sharing_enabled (m->klass) &&
3804 mono_method_is_generic_sharable_impl (m, FALSE)) &&
3805 !method_has_type_vars (m)) {
3806 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
3807 if (acfg->aot_opts.full_aot)
3808 add_extra_method (acfg, mono_marshal_get_native_wrapper (m, TRUE, TRUE));
3810 add_extra_method (acfg, m);
3813 add_generic_class (acfg, m->klass);
3817 case MONO_PATCH_INFO_VTABLE: {
3818 MonoClass *klass = patch_info->data.klass;
3820 if (klass->generic_class && !mono_generic_context_is_sharable (&klass->generic_class->context, FALSE))
3821 add_generic_class (acfg, klass);
3829 /* Determine whenever the method has GOT slots */
3830 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3831 switch (patch_info->type) {
3832 case MONO_PATCH_INFO_GOT_OFFSET:
3833 case MONO_PATCH_INFO_NONE:
3835 case MONO_PATCH_INFO_IMAGE:
3836 /* The assembly is stored in GOT slot 0 */
3837 if (patch_info->data.image != acfg->image)
3838 cfg->has_got_slots = TRUE;
3841 if (!is_plt_patch (patch_info))
3842 cfg->has_got_slots = TRUE;
3847 if (!cfg->has_got_slots)
3848 InterlockedIncrement (&acfg->stats.methods_without_got_slots);
3850 /* Make a copy of the patch info which is in the mempool */
3852 MonoJumpInfo *patches = NULL, *patches_end = NULL;
3854 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3855 MonoJumpInfo *new_patch_info = mono_patch_info_dup_mp (acfg->mempool, patch_info);
3858 patches = new_patch_info;
3860 patches_end->next = new_patch_info;
3861 patches_end = new_patch_info;
3863 cfg->patch_info = patches;
3865 /* Make a copy of the unwind info */
3867 GSList *l, *unwind_ops;
3871 for (l = cfg->unwind_ops; l; l = l->next) {
3872 op = mono_mempool_alloc (acfg->mempool, sizeof (MonoUnwindOp));
3873 memcpy (op, l->data, sizeof (MonoUnwindOp));
3874 unwind_ops = g_slist_prepend_mempool (acfg->mempool, unwind_ops, op);
3876 cfg->unwind_ops = g_slist_reverse (unwind_ops);
3878 /* Make a copy of the argument/local info */
3880 MonoInst **args, **locals;
3881 MonoMethodSignature *sig;
3882 MonoMethodHeader *header;
3885 sig = mono_method_signature (method);
3886 args = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * (sig->param_count + sig->hasthis));
3887 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
3888 args [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
3889 memcpy (args [i], cfg->args [i], sizeof (MonoInst));
3893 header = mono_method_get_header (method);
3894 locals = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * header->num_locals);
3895 for (i = 0; i < header->num_locals; ++i) {
3896 locals [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
3897 memcpy (locals [i], cfg->locals [i], sizeof (MonoInst));
3899 cfg->locals = locals;
3902 /* Free some fields used by cfg to conserve memory */
3903 mono_mempool_destroy (cfg->mempool);
3904 cfg->mempool = NULL;
3905 g_free (cfg->varinfo);
3906 cfg->varinfo = NULL;
3910 mono_regstate_free (cfg->rs);
3914 //printf ("Compile: %s\n", mono_method_full_name (method, TRUE));
3916 while (index >= acfg->cfgs_size) {
3917 MonoCompile **new_cfgs;
3920 new_size = acfg->cfgs_size * 2;
3921 new_cfgs = g_new0 (MonoCompile*, new_size);
3922 memcpy (new_cfgs, acfg->cfgs, sizeof (MonoCompile*) * acfg->cfgs_size);
3923 g_free (acfg->cfgs);
3924 acfg->cfgs = new_cfgs;
3925 acfg->cfgs_size = new_size;
3927 acfg->cfgs [index] = cfg;
3929 g_hash_table_insert (acfg->method_to_cfg, cfg->orig_method, cfg);
3932 if (cfg->orig_method->wrapper_type)
3933 g_ptr_array_add (acfg->extra_methods, cfg->orig_method);
3936 mono_acfg_unlock (acfg);
3938 InterlockedIncrement (&acfg->stats.ccount);
3942 compile_thread_main (gpointer *user_data)
3944 MonoDomain *domain = user_data [0];
3945 MonoAotCompile *acfg = user_data [1];
3946 GPtrArray *methods = user_data [2];
3949 mono_thread_attach (domain);
3951 for (i = 0; i < methods->len; ++i)
3952 compile_method (acfg, g_ptr_array_index (methods, i));
3956 load_profile_files (MonoAotCompile *acfg)
3960 int file_index, res, method_index, i;
3967 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);
3969 if (!g_file_test (tmp, G_FILE_TEST_IS_REGULAR)) {
3974 infile = fopen (tmp, "r");
3977 printf ("Using profile data file '%s'\n", tmp);
3982 res = fscanf (infile, "%32s\n", ver);
3983 if ((res != 1) || strcmp (ver, "#VER:1") != 0) {
3984 printf ("Profile file has wrong version or invalid.\n");
3990 res = fscanf (infile, "%d\n", &token);
3994 method_index = mono_metadata_token_index (token) - 1;
3996 if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (method_index)))
3997 acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (method_index));
4002 /* Add missing methods */
4004 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
4005 if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (i)))
4006 unordered = g_list_prepend (unordered, GUINT_TO_POINTER (i));
4008 unordered = g_list_reverse (unordered);
4009 if (acfg->method_order)
4010 g_list_last (acfg->method_order)->next = unordered;
4012 acfg->method_order = unordered;
4016 emit_code (MonoAotCompile *acfg)
4022 #if defined(TARGET_POWERPC64)
4023 sprintf (symbol, ".Lgot_addr");
4024 emit_section_change (acfg, ".text", 0);
4025 emit_alignment (acfg, 8);
4026 emit_label (acfg, symbol);
4027 emit_pointer (acfg, acfg->got_symbol);
4030 sprintf (symbol, "methods");
4031 emit_section_change (acfg, ".text", 0);
4032 emit_global (acfg, symbol, TRUE);
4033 emit_alignment (acfg, 8);
4034 emit_label (acfg, symbol);
4037 * Emit some padding so the local symbol for the first method doesn't have the
4038 * same address as 'methods'.
4040 emit_zero_bytes (acfg, 16);
4042 for (l = acfg->method_order; l != NULL; l = l->next) {
4043 i = GPOINTER_TO_UINT (l->data);
4046 emit_method_code (acfg, acfg->cfgs [i]);
4049 sprintf (symbol, "methods_end");
4050 emit_section_change (acfg, ".text", 0);
4051 emit_global (acfg, symbol, FALSE);
4052 emit_alignment (acfg, 8);
4053 emit_label (acfg, symbol);
4055 sprintf (symbol, "method_offsets");
4056 emit_section_change (acfg, ".text", 1);
4057 emit_global (acfg, symbol, FALSE);
4058 emit_alignment (acfg, 8);
4059 emit_label (acfg, symbol);
4061 for (i = 0; i < acfg->nmethods; ++i) {
4062 if (acfg->cfgs [i]) {
4063 sprintf (symbol, "%sm_%x", acfg->temp_prefix, i);
4064 emit_symbol_diff (acfg, symbol, "methods", 0);
4066 emit_int32 (acfg, 0xffffffff);
4073 emit_info (MonoAotCompile *acfg)
4079 /* Emit method info */
4080 sprintf (symbol, "method_info");
4081 emit_section_change (acfg, ".text", 1);
4082 emit_global (acfg, symbol, FALSE);
4083 emit_alignment (acfg, 8);
4084 emit_label (acfg, symbol);
4086 /* To reduce size of generated assembly code */
4087 sprintf (symbol, "mi");
4088 emit_label (acfg, symbol);
4090 for (l = acfg->method_order; l != NULL; l = l->next) {
4091 i = GPOINTER_TO_UINT (l->data);
4094 emit_method_info (acfg, acfg->cfgs [i]);
4097 sprintf (symbol, "method_info_offsets");
4098 emit_section_change (acfg, ".text", 1);
4099 emit_global (acfg, symbol, FALSE);
4100 emit_alignment (acfg, 8);
4101 emit_label (acfg, symbol);
4103 for (i = 0; i < acfg->nmethods; ++i) {
4104 if (acfg->cfgs [i]) {
4105 sprintf (symbol, "%sm_%x_p", acfg->temp_prefix, i);
4106 emit_symbol_diff (acfg, symbol, "mi", 0);
4108 emit_int32 (acfg, 0);
4114 #endif /* #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT) */
4117 * mono_aot_str_hash:
4119 * Hash function for strings which we use to hash strings for things which are
4120 * saved in the AOT image, since g_str_hash () can change.
4123 mono_aot_str_hash (gconstpointer v1)
4125 /* Same as g_str_hash () in glib */
4126 char *p = (char *) v1;
4131 hash = (hash << 5) - hash + *p;
4137 #define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
4138 #define mix(a,b,c) { \
4139 a -= c; a ^= rot(c, 4); c += b; \
4140 b -= a; b ^= rot(a, 6); a += c; \
4141 c -= b; c ^= rot(b, 8); b += a; \
4142 a -= c; a ^= rot(c,16); c += b; \
4143 b -= a; b ^= rot(a,19); a += c; \
4144 c -= b; c ^= rot(b, 4); b += a; \
4146 #define final(a,b,c) { \
4147 c ^= b; c -= rot(b,14); \
4148 a ^= c; a -= rot(c,11); \
4149 b ^= a; b -= rot(a,25); \
4150 c ^= b; c -= rot(b,16); \
4151 a ^= c; a -= rot(c,4); \
4152 b ^= a; b -= rot(a,14); \
4153 c ^= b; c -= rot(b,24); \
4157 mono_aot_type_hash (MonoType *t1)
4159 guint hash = t1->type;
4161 hash |= t1->byref << 6; /* do not collide with t1->type values */
4163 case MONO_TYPE_VALUETYPE:
4164 case MONO_TYPE_CLASS:
4165 case MONO_TYPE_SZARRAY:
4166 /* check if the distribution is good enough */
4167 return ((hash << 5) - hash) ^ mono_aot_str_hash (t1->data.klass->name);
4169 return ((hash << 5) - hash) ^ mono_aot_type_hash (t1->data.type);
4170 case MONO_TYPE_ARRAY:
4171 return ((hash << 5) - hash) ^ mono_aot_type_hash (&t1->data.array->eklass->byval_arg);
4172 case MONO_TYPE_GENERICINST:
4173 return ((hash << 5) - hash) ^ 0;
4179 * mono_aot_method_hash:
4181 * Return a hash code for methods which only depends on metadata.
4184 mono_aot_method_hash (MonoMethod *method)
4186 MonoMethodSignature *sig;
4190 guint32 *hashes_start, *hashes;
4193 /* Similar to the hash in mono_method_get_imt_slot () */
4195 sig = mono_method_signature (method);
4197 hashes_count = sig->param_count + 5;
4198 hashes_start = malloc (hashes_count * sizeof (guint32));
4199 hashes = hashes_start;
4201 /* Some wrappers are assigned to random classes */
4202 if (!method->wrapper_type || method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4203 klass = method->klass;
4205 klass = mono_defaults.object_class;
4207 if (!method->wrapper_type) {
4208 char *full_name = mono_type_full_name (&klass->byval_arg);
4210 hashes [0] = mono_aot_str_hash (full_name);
4214 hashes [0] = mono_aot_str_hash (klass->name);
4215 hashes [1] = mono_aot_str_hash (klass->name_space);
4217 hashes [2] = mono_aot_str_hash (method->name);
4218 hashes [3] = method->wrapper_type;
4219 hashes [4] = mono_aot_type_hash (sig->ret);
4220 for (i = 0; i < sig->param_count; i++) {
4221 hashes [5 + i] = mono_aot_type_hash (sig->params [i]);
4224 /* Setup internal state */
4225 a = b = c = 0xdeadbeef + (((guint32)hashes_count)<<2);
4227 /* Handle most of the hashes */
4228 while (hashes_count > 3) {
4237 /* Handle the last 3 hashes (all the case statements fall through) */
4238 switch (hashes_count) {
4239 case 3 : c += hashes [2];
4240 case 2 : b += hashes [1];
4241 case 1 : a += hashes [0];
4243 case 0: /* nothing left to add */
4247 free (hashes_start);
4256 * mono_aot_wrapper_name:
4258 * Return a string which uniqely identifies the given wrapper method.
4261 mono_aot_wrapper_name (MonoMethod *method)
4263 char *name, *tmpsig, *klass_desc;
4265 tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
4267 switch (method->wrapper_type) {
4268 case MONO_WRAPPER_RUNTIME_INVOKE:
4269 if (!strcmp (method->name, "runtime_invoke_dynamic"))
4270 name = g_strdup_printf ("(wrapper runtime-invoke-dynamic)");
4272 name = g_strdup_printf ("%s (%s)", method->name, tmpsig);
4274 case MONO_WRAPPER_DELEGATE_INVOKE:
4275 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
4276 case MONO_WRAPPER_DELEGATE_END_INVOKE:
4277 /* This is a hack to work around the fact that these wrappers get assigned to some random class */
4278 name = g_strdup_printf ("%s (%s)", method->name, tmpsig);
4281 klass_desc = mono_type_full_name (&method->klass->byval_arg);
4283 name = g_strdup_printf ("%s:%s (%s)", klass_desc, method->name, tmpsig);
4293 * mono_aot_tramp_info_create:
4295 * Create a MonoAotTrampInfo structure from the arguments.
4298 mono_aot_tramp_info_create (const char *name, guint8 *code, guint32 code_size)
4300 MonoAotTrampInfo *info = g_new0 (MonoAotTrampInfo, 1);
4302 info->name = (char*)name;
4304 info->code_size = code_size;
4309 #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
4311 typedef struct HashEntry {
4312 guint32 key, value, index;
4313 struct HashEntry *next;
4317 * emit_extra_methods:
4319 * Emit methods which are not in the METHOD table, like wrappers.
4322 emit_extra_methods (MonoAotCompile *acfg)
4324 int i, table_size, buf_size;
4327 guint32 *info_offsets;
4330 HashEntry *entry, *new_entry;
4331 int nmethods, max_chain_length;
4334 info_offsets = g_new0 (guint32, acfg->extra_methods->len);
4336 buf_size = acfg->extra_methods->len * 256 + 256;
4337 p = buf = g_malloc (buf_size);
4339 /* Encode method info */
4341 /* So offsets are > 0 */
4344 for (i = 0; i < acfg->extra_methods->len; ++i) {
4345 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
4346 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
4353 info_offsets [i] = p - buf;
4356 if (method->wrapper_type) {
4358 * We encode some wrappers using their name, since encoding them
4359 * directly would be difficult. This also avoids creating the wrapper
4360 * methods at runtime, since they are not needed anyway.
4362 switch (method->wrapper_type) {
4363 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
4364 case MONO_WRAPPER_SYNCHRONIZED:
4365 /* encode_method_ref () can handle these */
4367 case MONO_WRAPPER_RUNTIME_INVOKE:
4368 if (mono_marshal_method_from_wrapper (method) != method && !strstr (method->name, "virtual"))
4369 /* Direct wrapper, encode normally */
4373 name = mono_aot_wrapper_name (method);
4379 encode_value (1, p, &p);
4380 encode_value (method->wrapper_type, p, &p);
4381 strcpy ((char*)p, name);
4382 p += strlen (name ) + 1;
4385 encode_value (0, p, &p);
4386 encode_method_ref (acfg, method, p, &p);
4389 g_assert ((p - buf) < buf_size);
4392 g_assert ((p - buf) < buf_size);
4394 /* Emit method info */
4395 sprintf (symbol, "extra_method_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 emit_bytes (acfg, buf, p - buf);
4406 * Construct a chained hash table for mapping indexes in extra_method_info to
4409 table_size = g_spaced_primes_closest ((int)(nmethods * 1.5));
4410 table = g_ptr_array_sized_new (table_size);
4411 for (i = 0; i < table_size; ++i)
4412 g_ptr_array_add (table, NULL);
4413 chain_lengths = g_new0 (int, table_size);
4414 max_chain_length = 0;
4415 for (i = 0; i < acfg->extra_methods->len; ++i) {
4416 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
4417 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
4423 key = info_offsets [i];
4424 value = get_method_index (acfg, method);
4426 hash = mono_aot_method_hash (method) % table_size;
4428 chain_lengths [hash] ++;
4429 max_chain_length = MAX (max_chain_length, chain_lengths [hash]);
4431 /* FIXME: Allocate from the mempool */
4432 new_entry = g_new0 (HashEntry, 1);
4433 new_entry->key = key;
4434 new_entry->value = value;
4436 entry = g_ptr_array_index (table, hash);
4437 if (entry == NULL) {
4438 new_entry->index = hash;
4439 g_ptr_array_index (table, hash) = new_entry;
4442 entry = entry->next;
4444 entry->next = new_entry;
4445 new_entry->index = table->len;
4446 g_ptr_array_add (table, new_entry);
4450 //printf ("MAX: %d\n", max_chain_length);
4452 /* Emit the table */
4453 sprintf (symbol, "extra_method_table");
4454 emit_section_change (acfg, ".text", 0);
4455 emit_global (acfg, symbol, FALSE);
4456 emit_alignment (acfg, 8);
4457 emit_label (acfg, symbol);
4459 emit_int32 (acfg, table_size);
4460 for (i = 0; i < table->len; ++i) {
4461 HashEntry *entry = g_ptr_array_index (table, i);
4463 if (entry == NULL) {
4464 emit_int32 (acfg, 0);
4465 emit_int32 (acfg, 0);
4466 emit_int32 (acfg, 0);
4468 g_assert (entry->key > 0);
4469 emit_int32 (acfg, entry->key);
4470 emit_int32 (acfg, entry->value);
4472 emit_int32 (acfg, entry->next->index);
4474 emit_int32 (acfg, 0);
4479 * Emit a table reverse mapping method indexes to their index in extra_method_info.
4480 * This is used by mono_aot_find_jit_info ().
4482 sprintf (symbol, "extra_method_info_offsets");
4483 emit_section_change (acfg, ".text", 0);
4484 emit_global (acfg, symbol, FALSE);
4485 emit_alignment (acfg, 8);
4486 emit_label (acfg, symbol);
4488 emit_int32 (acfg, acfg->extra_methods->len);
4489 for (i = 0; i < acfg->extra_methods->len; ++i) {
4490 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
4492 emit_int32 (acfg, get_method_index (acfg, method));
4493 emit_int32 (acfg, info_offsets [i]);
4498 emit_method_order (MonoAotCompile *acfg)
4504 sprintf (symbol, "method_order");
4505 emit_section_change (acfg, ".text", 1);
4506 emit_global (acfg, symbol, FALSE);
4507 emit_alignment (acfg, 8);
4508 emit_label (acfg, symbol);
4510 /* First emit an index table */
4513 for (l = acfg->method_order; l != NULL; l = l->next) {
4514 i = GPOINTER_TO_UINT (l->data);
4516 if (acfg->cfgs [i]) {
4517 if ((index % 1024) == 0) {
4518 emit_int32 (acfg, i);
4526 emit_int32 (acfg, 0xffffff);
4528 /* Then emit the whole method order */
4529 for (l = acfg->method_order; l != NULL; l = l->next) {
4530 i = GPOINTER_TO_UINT (l->data);
4532 if (acfg->cfgs [i]) {
4533 emit_int32 (acfg, i);
4538 sprintf (symbol, "method_order_end");
4539 emit_section_change (acfg, ".text", 1);
4540 emit_global (acfg, symbol, FALSE);
4541 emit_label (acfg, symbol);
4545 emit_exception_info (MonoAotCompile *acfg)
4550 sprintf (symbol, "ex_info");
4551 emit_section_change (acfg, ".text", 1);
4552 emit_global (acfg, symbol, FALSE);
4553 emit_alignment (acfg, 8);
4554 emit_label (acfg, symbol);
4556 /* To reduce size of generated assembly */
4557 sprintf (symbol, "ex");
4558 emit_label (acfg, symbol);
4560 for (i = 0; i < acfg->nmethods; ++i) {
4562 emit_exception_debug_info (acfg, acfg->cfgs [i]);
4565 sprintf (symbol, "ex_info_offsets");
4566 emit_section_change (acfg, ".text", 1);
4567 emit_global (acfg, symbol, FALSE);
4568 emit_alignment (acfg, 8);
4569 emit_label (acfg, symbol);
4571 for (i = 0; i < acfg->nmethods; ++i) {
4572 if (acfg->cfgs [i]) {
4573 sprintf (symbol, "%se_%x_p", acfg->temp_prefix, i);
4574 emit_symbol_diff (acfg, symbol, "ex", 0);
4576 emit_int32 (acfg, 0);
4583 emit_unwind_info (MonoAotCompile *acfg)
4589 * The unwind info contains a lot of duplicates so we emit each unique
4590 * entry once, and only store the offset from the start of the table in the
4594 sprintf (symbol, "unwind_info");
4595 emit_section_change (acfg, ".text", 1);
4596 emit_alignment (acfg, 8);
4597 emit_label (acfg, symbol);
4598 emit_global (acfg, symbol, FALSE);
4600 for (i = 0; i < acfg->unwind_ops->len; ++i) {
4601 guint32 index = GPOINTER_TO_UINT (g_ptr_array_index (acfg->unwind_ops, i));
4602 guint8 *unwind_info;
4603 guint32 unwind_info_len;
4607 unwind_info = mono_get_cached_unwind_info (index, &unwind_info_len);
4610 encode_value (unwind_info_len, p, &p);
4611 emit_bytes (acfg, buf, p - buf);
4612 emit_bytes (acfg, unwind_info, unwind_info_len);
4614 acfg->stats.unwind_info_size += (p - buf) + unwind_info_len;
4619 emit_class_info (MonoAotCompile *acfg)
4624 sprintf (symbol, "class_info");
4625 emit_section_change (acfg, ".text", 1);
4626 emit_global (acfg, symbol, FALSE);
4627 emit_alignment (acfg, 8);
4628 emit_label (acfg, symbol);
4630 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i)
4631 emit_klass_info (acfg, MONO_TOKEN_TYPE_DEF | (i + 1));
4633 sprintf (symbol, "class_info_offsets");
4634 emit_section_change (acfg, ".text", 1);
4635 emit_global (acfg, symbol, FALSE);
4636 emit_alignment (acfg, 8);
4637 emit_label (acfg, symbol);
4639 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
4640 sprintf (symbol, "%sK_I_%x", acfg->temp_prefix, i);
4641 emit_symbol_diff (acfg, symbol, "class_info", 0);
4646 typedef struct ClassNameTableEntry {
4647 guint32 token, index;
4648 struct ClassNameTableEntry *next;
4649 } ClassNameTableEntry;
4652 emit_class_name_table (MonoAotCompile *acfg)
4655 guint32 token, hash;
4660 ClassNameTableEntry *entry, *new_entry;
4663 * Construct a chained hash table for mapping class names to typedef tokens.
4665 table_size = g_spaced_primes_closest ((int)(acfg->image->tables [MONO_TABLE_TYPEDEF].rows * 1.5));
4666 table = g_ptr_array_sized_new (table_size);
4667 for (i = 0; i < table_size; ++i)
4668 g_ptr_array_add (table, NULL);
4669 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
4670 token = MONO_TOKEN_TYPE_DEF | (i + 1);
4671 klass = mono_class_get (acfg->image, token);
4672 full_name = mono_type_get_name_full (mono_class_get_type (klass), MONO_TYPE_NAME_FORMAT_FULL_NAME);
4673 hash = mono_aot_str_hash (full_name) % table_size;
4676 /* FIXME: Allocate from the mempool */
4677 new_entry = g_new0 (ClassNameTableEntry, 1);
4678 new_entry->token = token;
4680 entry = g_ptr_array_index (table, hash);
4681 if (entry == NULL) {
4682 new_entry->index = hash;
4683 g_ptr_array_index (table, hash) = new_entry;
4686 entry = entry->next;
4688 entry->next = new_entry;
4689 new_entry->index = table->len;
4690 g_ptr_array_add (table, new_entry);
4694 /* Emit the table */
4695 sprintf (symbol, "class_name_table");
4696 emit_section_change (acfg, ".text", 0);
4697 emit_global (acfg, symbol, FALSE);
4698 emit_alignment (acfg, 8);
4699 emit_label (acfg, symbol);
4701 /* FIXME: Optimize memory usage */
4702 g_assert (table_size < 65000);
4703 emit_int16 (acfg, table_size);
4704 g_assert (table->len < 65000);
4705 for (i = 0; i < table->len; ++i) {
4706 ClassNameTableEntry *entry = g_ptr_array_index (table, i);
4708 if (entry == NULL) {
4709 emit_int16 (acfg, 0);
4710 emit_int16 (acfg, 0);
4712 emit_int16 (acfg, mono_metadata_token_index (entry->token));
4714 emit_int16 (acfg, entry->next->index);
4716 emit_int16 (acfg, 0);
4722 emit_image_table (MonoAotCompile *acfg)
4728 * The image table is small but referenced in a lot of places.
4729 * So we emit it at once, and reference its elements by an index.
4732 sprintf (symbol, "mono_image_table");
4733 emit_section_change (acfg, ".text", 1);
4734 emit_global (acfg, symbol, FALSE);
4735 emit_alignment (acfg, 8);
4736 emit_label (acfg, symbol);
4738 emit_int32 (acfg, acfg->image_table->len);
4739 for (i = 0; i < acfg->image_table->len; i++) {
4740 MonoImage *image = (MonoImage*)g_ptr_array_index (acfg->image_table, i);
4741 MonoAssemblyName *aname = &image->assembly->aname;
4743 /* FIXME: Support multi-module assemblies */
4744 g_assert (image->assembly->image == image);
4746 emit_string (acfg, image->assembly_name);
4747 emit_string (acfg, image->guid);
4748 emit_string (acfg, aname->culture ? aname->culture : "");
4749 emit_string (acfg, (const char*)aname->public_key_token);
4751 emit_alignment (acfg, 8);
4752 emit_int32 (acfg, aname->flags);
4753 emit_int32 (acfg, aname->major);
4754 emit_int32 (acfg, aname->minor);
4755 emit_int32 (acfg, aname->build);
4756 emit_int32 (acfg, aname->revision);
4761 emit_got_info (MonoAotCompile *acfg)
4764 int i, first_plt_got_patch, buf_size;
4766 guint32 *got_info_offsets;
4768 /* Add the patches needed by the PLT to the GOT */
4769 acfg->plt_got_offset_base = acfg->got_offset;
4770 first_plt_got_patch = acfg->got_patches->len;
4771 for (i = 1; i < acfg->plt_offset; ++i) {
4772 MonoJumpInfo *patch_info = g_hash_table_lookup (acfg->plt_offset_to_patch, GUINT_TO_POINTER (i));
4774 g_ptr_array_add (acfg->got_patches, patch_info);
4777 acfg->got_offset += acfg->plt_offset;
4781 * - optimize offsets table.
4782 * - reduce number of exported symbols.
4783 * - emit info for a klass only once.
4784 * - determine when a method uses a GOT slot which is guaranteed to be already
4786 * - clean up and document the code.
4787 * - use String.Empty in class libs.
4790 /* Encode info required to decode shared GOT entries */
4791 buf_size = acfg->got_patches->len * 64;
4792 p = buf = mono_mempool_alloc (acfg->mempool, buf_size);
4793 got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->got_patches->len * sizeof (guint32));
4794 acfg->plt_got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->plt_offset * sizeof (guint32));
4796 if (acfg->plt_offset)
4797 acfg->plt_got_info_offsets [0] = 0;
4798 for (i = 0; i < acfg->got_patches->len; ++i) {
4799 MonoJumpInfo *ji = g_ptr_array_index (acfg->got_patches, i);
4801 got_info_offsets [i] = p - buf;
4802 if (i >= first_plt_got_patch)
4803 acfg->plt_got_info_offsets [i - first_plt_got_patch + 1] = got_info_offsets [i];
4804 encode_value (ji->type, p, &p);
4805 encode_patch (acfg, ji, p, &p);
4808 g_assert (p - buf <= buf_size);
4810 acfg->stats.got_info_size = p - buf;
4812 /* Emit got_info table */
4813 sprintf (symbol, "got_info");
4814 emit_section_change (acfg, ".text", 1);
4815 emit_global (acfg, symbol, FALSE);
4816 emit_alignment (acfg, 8);
4817 emit_label (acfg, symbol);
4819 emit_bytes (acfg, buf, p - buf);
4821 /* Emit got_info_offsets table */
4822 sprintf (symbol, "got_info_offsets");
4823 emit_section_change (acfg, ".text", 1);
4824 emit_global (acfg, symbol, FALSE);
4825 emit_alignment (acfg, 8);
4826 emit_label (acfg, symbol);
4828 /* No need to emit offsets for the got plt entries, the plt embeds them directly */
4829 for (i = 0; i < first_plt_got_patch; ++i)
4830 emit_int32 (acfg, got_info_offsets [i]);
4832 acfg->stats.got_info_offsets_size = acfg->got_patches->len * 4;
4836 emit_got (MonoAotCompile *acfg)
4840 /* Don't make GOT global so accesses to it don't need relocations */
4841 sprintf (symbol, "%s", acfg->got_symbol);
4842 emit_section_change (acfg, ".bss", 0);
4843 emit_alignment (acfg, 8);
4844 emit_local_symbol (acfg, symbol, "got_end", FALSE);
4845 emit_label (acfg, symbol);
4846 if (acfg->got_offset > 0)
4847 emit_zero_bytes (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
4849 sprintf (symbol, "got_end");
4850 emit_label (acfg, symbol);
4852 sprintf (symbol, "mono_aot_got_addr");
4853 emit_section_change (acfg, ".data", 0);
4854 emit_global (acfg, symbol, FALSE);
4855 emit_alignment (acfg, 8);
4856 emit_label (acfg, symbol);
4857 emit_pointer (acfg, acfg->got_symbol);
4861 emit_globals (MonoAotCompile *acfg)
4866 emit_string_symbol (acfg, "mono_assembly_guid" , acfg->image->guid);
4868 emit_string_symbol (acfg, "mono_aot_version", MONO_AOT_FILE_VERSION);
4870 opts_str = g_strdup_printf ("%d", acfg->opts);
4871 emit_string_symbol (acfg, "mono_aot_opt_flags", opts_str);
4874 emit_string_symbol (acfg, "mono_aot_full_aot", acfg->aot_opts.full_aot ? "TRUE" : "FALSE");
4876 if (acfg->aot_opts.bind_to_runtime_version) {
4877 build_info = mono_get_runtime_build_info ();
4878 emit_string_symbol (acfg, "mono_runtime_version", build_info);
4879 g_free (build_info);
4881 emit_string_symbol (acfg, "mono_runtime_version", "");
4885 * When static linking, we emit a global which will point to the symbol table.
4887 if (acfg->aot_opts.static_link) {
4892 /* Emit a string holding the assembly name */
4893 emit_string_symbol (acfg, "mono_aot_assembly_name", acfg->image->assembly->aname.name);
4895 /* Emit the names */
4896 for (i = 0; i < acfg->globals->len; ++i) {
4897 char *name = g_ptr_array_index (acfg->globals, i);
4899 sprintf (symbol, "name_%d", i);
4900 emit_section_change (acfg, ".text", 1);
4901 emit_label (acfg, symbol);
4902 emit_string (acfg, name);
4905 /* Emit the globals table */
4906 sprintf (symbol, "globals");
4907 emit_section_change (acfg, ".data", 0);
4908 /* This is not a global, since it is accessed by the init function */
4909 emit_alignment (acfg, 8);
4910 emit_label (acfg, symbol);
4912 for (i = 0; i < acfg->globals->len; ++i) {
4913 char *name = g_ptr_array_index (acfg->globals, i);
4915 sprintf (symbol, "name_%d", i);
4916 emit_pointer (acfg, symbol);
4918 sprintf (symbol, "%s", name);
4919 emit_pointer (acfg, symbol);
4921 /* Null terminate the table */
4922 emit_int32 (acfg, 0);
4923 emit_int32 (acfg, 0);
4926 * Emit a global symbol which can be passed by an embedding app to
4927 * mono_aot_register_module ().
4929 #if defined(__MACH__)
4930 sprintf (symbol, "_mono_aot_module_%s_info", acfg->image->assembly->aname.name);
4932 sprintf (symbol, "mono_aot_module_%s_info", acfg->image->assembly->aname.name);
4935 /* Get rid of characters which cannot occur in symbols */
4937 for (p = symbol; *p; ++p) {
4938 if (!(isalnum (*p) || *p == '_'))
4941 acfg->static_linking_symbol = g_strdup (symbol);
4942 emit_global_inner (acfg, symbol, FALSE);
4943 emit_alignment (acfg, 8);
4944 emit_label (acfg, symbol);
4945 emit_pointer (acfg, "globals");
4950 emit_mem_end (MonoAotCompile *acfg)
4954 sprintf (symbol, "mem_end");
4955 emit_section_change (acfg, ".text", 1);
4956 emit_global (acfg, symbol, FALSE);
4957 emit_alignment (acfg, 8);
4958 emit_label (acfg, symbol);
4962 * Emit a structure containing all the information not stored elsewhere.
4965 emit_file_info (MonoAotCompile *acfg)
4970 sprintf (symbol, "mono_aot_file_info");
4971 emit_section_change (acfg, ".data", 0);
4972 emit_alignment (acfg, 8);
4973 emit_label (acfg, symbol);
4974 emit_global (acfg, symbol, FALSE);
4976 /* The data emitted here must match MonoAotFileInfo in aot-runtime.c. */
4977 emit_int32 (acfg, acfg->plt_got_offset_base);
4978 emit_int32 (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
4979 emit_int32 (acfg, acfg->plt_offset);
4980 emit_int32 (acfg, acfg->nmethods);
4982 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
4983 emit_int32 (acfg, acfg->num_trampolines [i]);
4984 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
4985 emit_int32 (acfg, acfg->trampoline_got_offset_base [i]);
4986 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
4987 emit_int32 (acfg, acfg->trampoline_size [i]);
4991 emit_dwarf_info (MonoAotCompile *acfg)
4993 #ifdef EMIT_DWARF_INFO
4995 char symbol [128], symbol2 [128];
4997 /* DIEs for methods */
4998 for (i = 0; i < acfg->nmethods; ++i) {
4999 MonoCompile *cfg = acfg->cfgs [i];
5004 sprintf (symbol, "%sm_%x", acfg->temp_prefix, i);
5005 sprintf (symbol2, "%sme_%x", acfg->temp_prefix, i);
5007 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 ()));
5013 collect_methods (MonoAotCompile *acfg)
5016 MonoImage *image = acfg->image;
5018 /* Collect methods */
5019 for (i = 0; i < image->tables [MONO_TABLE_METHOD].rows; ++i) {
5021 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
5023 method = mono_get_method (acfg->image, token, NULL);
5026 printf ("Failed to load method 0x%x from '%s'.\n", token, image->name);
5030 /* Load all methods eagerly to skip the slower lazy loading code */
5031 mono_class_setup_methods (method->klass);
5033 if (acfg->aot_opts.full_aot && method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
5034 /* Compile the wrapper instead */
5035 /* We do this here instead of add_wrappers () because it is easy to do it here */
5036 MonoMethod *wrapper = mono_marshal_get_native_wrapper (method, check_for_pending_exc, TRUE);
5040 /* Since we add the normal methods first, their index will be equal to their zero based token index */
5041 add_method_with_index (acfg, method, i, FALSE);
5042 acfg->method_index ++;
5045 add_generic_instances (acfg);
5047 if (acfg->aot_opts.full_aot)
5048 add_wrappers (acfg);
5052 compile_methods (MonoAotCompile *acfg)
5056 if (acfg->aot_opts.nthreads > 0) {
5061 gpointer *user_data;
5062 MonoMethod **methods;
5064 methods_len = acfg->methods->len;
5066 len = acfg->methods->len / acfg->aot_opts.nthreads;
5069 * Partition the list of methods into fragments, and hand it to threads to
5072 threads = g_ptr_array_new ();
5073 /* Make a copy since acfg->methods is modified by compile_method () */
5074 methods = g_new0 (MonoMethod*, methods_len);
5075 //memcpy (methods, g_ptr_array_index (acfg->methods, 0), sizeof (MonoMethod*) * methods_len);
5076 for (i = 0; i < methods_len; ++i)
5077 methods [i] = g_ptr_array_index (acfg->methods, i);
5079 while (i < methods_len) {
5080 frag = g_ptr_array_new ();
5081 for (j = 0; j < len; ++j) {
5082 if (i < methods_len) {
5083 g_ptr_array_add (frag, methods [i]);
5088 user_data = g_new0 (gpointer, 3);
5089 user_data [0] = mono_domain_get ();
5090 user_data [1] = acfg;
5091 user_data [2] = frag;
5093 handle = mono_create_thread (NULL, 0, (gpointer)compile_thread_main, user_data, 0, NULL);
5094 g_ptr_array_add (threads, handle);
5098 for (i = 0; i < threads->len; ++i) {
5099 WaitForSingleObjectEx (g_ptr_array_index (threads, i), INFINITE, FALSE);
5105 /* Compile methods added by compile_method () or all methods if nthreads == 0 */
5106 for (i = methods_len; i < acfg->methods->len; ++i) {
5107 /* This can new methods to acfg->methods */
5108 compile_method (acfg, g_ptr_array_index (acfg->methods, i));
5113 compile_asm (MonoAotCompile *acfg)
5115 char *command, *objfile;
5116 char *outfile_name, *tmp_outfile_name;
5117 const char *tool_prefix = acfg->aot_opts.tool_prefix ? acfg->aot_opts.tool_prefix : "";
5119 #if defined(TARGET_AMD64)
5120 #define AS_OPTIONS "--64"
5121 #elif defined(TARGET_POWERPC64)
5122 #define AS_OPTIONS "-a64 -mppc64"
5123 #define LD_OPTIONS "-m elf64ppc"
5124 #elif defined(sparc) && SIZEOF_VOID_P == 8
5125 #define AS_OPTIONS "-xarch=v9"
5127 #define AS_OPTIONS ""
5131 #define LD_OPTIONS ""
5134 if (acfg->aot_opts.asm_only) {
5135 printf ("Output file: '%s'.\n", acfg->tmpfname);
5136 if (acfg->aot_opts.static_link)
5137 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
5141 if (acfg->aot_opts.static_link) {
5142 if (acfg->aot_opts.outfile)
5143 objfile = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5145 objfile = g_strdup_printf ("%s.o", acfg->image->name);
5147 objfile = g_strdup_printf ("%s.o", acfg->tmpfname);
5149 command = g_strdup_printf ("%sas %s %s -o %s", tool_prefix, AS_OPTIONS, acfg->tmpfname, objfile);
5150 printf ("Executing the native assembler: %s\n", command);
5151 if (system (command) != 0) {
5159 if (acfg->aot_opts.static_link) {
5160 printf ("Output file: '%s'.\n", objfile);
5161 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
5166 if (acfg->aot_opts.outfile)
5167 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5169 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
5171 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
5174 command = g_strdup_printf ("ld -shared -G -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
5175 #elif defined(__ppc__) && defined(__MACH__)
5176 command = g_strdup_printf ("gcc -dynamiclib -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
5177 #elif defined(PLATFORM_WIN32)
5178 command = g_strdup_printf ("gcc -shared --dll -mno-cygwin -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
5180 command = g_strdup_printf ("%sld %s -shared -o %s %s.o", tool_prefix, LD_OPTIONS, tmp_outfile_name, acfg->tmpfname);
5182 printf ("Executing the native linker: %s\n", command);
5183 if (system (command) != 0) {
5184 g_free (tmp_outfile_name);
5185 g_free (outfile_name);
5193 /*com = g_strdup_printf ("strip --strip-unneeded %s%s", acfg->image->name, SHARED_EXT);
5194 printf ("Stripping the binary: %s\n", com);
5198 #if defined(TARGET_ARM) && !defined(__MACH__)
5200 * gas generates 'mapping symbols' each time code and data is mixed, which
5201 * happens a lot in emit_and_reloc_code (), so we need to get rid of them.
5203 command = g_strdup_printf ("%sstrip --strip-symbol=\\$a --strip-symbol=\\$d %s", tool_prefix, tmp_outfile_name);
5204 printf ("Stripping the binary: %s\n", command);
5205 if (system (command) != 0) {
5206 g_free (tmp_outfile_name);
5207 g_free (outfile_name);
5214 rename (tmp_outfile_name, outfile_name);
5216 g_free (tmp_outfile_name);
5217 g_free (outfile_name);
5220 if (acfg->aot_opts.save_temps)
5221 printf ("Retained input file.\n");
5223 unlink (acfg->tmpfname);
5228 static MonoAotCompile*
5229 acfg_create (MonoAssembly *ass, guint32 opts)
5231 MonoImage *image = ass->image;
5232 MonoAotCompile *acfg;
5234 acfg = g_new0 (MonoAotCompile, 1);
5235 acfg->methods = g_ptr_array_new ();
5236 acfg->method_indexes = g_hash_table_new (NULL, NULL);
5237 acfg->plt_offset_to_patch = g_hash_table_new (NULL, NULL);
5238 acfg->patch_to_plt_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
5239 acfg->patch_to_got_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
5240 acfg->got_patches = g_ptr_array_new ();
5241 acfg->method_to_cfg = g_hash_table_new (NULL, NULL);
5242 acfg->token_info_hash = g_hash_table_new_full (NULL, NULL, NULL, g_free);
5243 acfg->image_hash = g_hash_table_new (NULL, NULL);
5244 acfg->image_table = g_ptr_array_new ();
5245 acfg->globals = g_ptr_array_new ();
5246 acfg->image = image;
5248 acfg->mempool = mono_mempool_new ();
5249 acfg->extra_methods = g_ptr_array_new ();
5250 acfg->unwind_info_offsets = g_hash_table_new (NULL, NULL);
5251 acfg->unwind_ops = g_ptr_array_new ();
5252 acfg->method_label_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
5253 InitializeCriticalSection (&acfg->mutex);
5259 acfg_free (MonoAotCompile *acfg)
5263 img_writer_destroy (acfg->w);
5264 for (i = 0; i < acfg->nmethods; ++i)
5266 g_free (acfg->cfgs [i]);
5267 g_free (acfg->cfgs);
5268 g_free (acfg->static_linking_symbol);
5269 g_free (acfg->got_symbol);
5270 g_free (acfg->plt_symbol);
5271 g_ptr_array_free (acfg->methods, TRUE);
5272 g_ptr_array_free (acfg->got_patches, TRUE);
5273 g_ptr_array_free (acfg->image_table, TRUE);
5274 g_ptr_array_free (acfg->globals, TRUE);
5275 g_ptr_array_free (acfg->unwind_ops, TRUE);
5276 g_hash_table_destroy (acfg->method_indexes);
5277 g_hash_table_destroy (acfg->plt_offset_to_patch);
5278 g_hash_table_destroy (acfg->patch_to_plt_offset);
5279 g_hash_table_destroy (acfg->patch_to_got_offset);
5280 g_hash_table_destroy (acfg->method_to_cfg);
5281 g_hash_table_destroy (acfg->token_info_hash);
5282 g_hash_table_destroy (acfg->image_hash);
5283 g_hash_table_destroy (acfg->unwind_info_offsets);
5284 g_hash_table_destroy (acfg->method_label_hash);
5285 mono_mempool_destroy (acfg->mempool);
5290 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
5292 MonoImage *image = ass->image;
5294 MonoAotCompile *acfg;
5295 char *outfile_name, *tmp_outfile_name, *p;
5299 printf ("Mono Ahead of Time compiler - compiling assembly %s\n", image->name);
5301 acfg = acfg_create (ass, opts);
5303 memset (&acfg->aot_opts, 0, sizeof (acfg->aot_opts));
5304 acfg->aot_opts.write_symbols = TRUE;
5305 acfg->aot_opts.ntrampolines = 1024;
5307 mono_aot_parse_options (aot_options, &acfg->aot_opts);
5309 //acfg->aot_opts.print_skipped_methods = TRUE;
5311 #ifndef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
5312 if (acfg->aot_opts.full_aot) {
5313 printf ("--aot=full is not supported on this platform.\n");
5318 if (acfg->aot_opts.static_link)
5319 acfg->aot_opts.asm_writer = TRUE;
5321 load_profile_files (acfg);
5323 acfg->num_trampolines [MONO_AOT_TRAMP_SPECIFIC] = acfg->aot_opts.full_aot ? acfg->aot_opts.ntrampolines : 0;
5324 #ifdef MONO_ARCH_HAVE_STATIC_RGCTX_TRAMPOLINE
5325 acfg->num_trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = acfg->aot_opts.full_aot ? 1024 : 0;
5327 acfg->num_trampolines [MONO_AOT_TRAMP_IMT_THUNK] = acfg->aot_opts.full_aot ? 128 : 0;
5329 acfg->got_symbol = g_strdup_printf ("mono_aot_%s_got", acfg->image->assembly->aname.name);
5330 acfg->plt_symbol = g_strdup_printf ("mono_aot_%s_plt", acfg->image->assembly->aname.name);
5332 /* Get rid of characters which cannot occur in symbols */
5333 for (p = acfg->got_symbol; *p; ++p) {
5334 if (!(isalnum (*p) || *p == '_'))
5337 for (p = acfg->plt_symbol; *p; ++p) {
5338 if (!(isalnum (*p) || *p == '_'))
5342 acfg->method_index = 1;
5344 collect_methods (acfg);
5346 acfg->cfgs_size = acfg->methods->len + 32;
5347 acfg->cfgs = g_new0 (MonoCompile*, acfg->cfgs_size);
5349 /* PLT offset 0 is reserved for the PLT trampoline */
5350 acfg->plt_offset = 1;
5352 /* GOT offset 0 is reserved for the address of the current assembly */
5356 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
5357 ji->type = MONO_PATCH_INFO_IMAGE;
5358 ji->data.image = acfg->image;
5360 get_got_offset (acfg, ji);
5362 /* Slot 1 is reserved for the mscorlib got addr */
5363 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
5364 ji->type = MONO_PATCH_INFO_MSCORLIB_GOT_ADDR;
5365 get_got_offset (acfg, ji);
5370 compile_methods (acfg);
5374 acfg->stats.jit_time = TV_ELAPSED (atv, btv);
5378 if (!acfg->aot_opts.asm_only && !acfg->aot_opts.asm_writer && bin_writer_supported ()) {
5379 if (acfg->aot_opts.outfile)
5380 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5382 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
5385 * Can't use g_file_open_tmp () as it will be deleted at exit, and
5386 * it might be in another file system so the rename () won't work.
5388 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
5390 acfg->fp = fopen (tmp_outfile_name, "w");
5392 printf ("Unable to create temporary file '%s': %s\n", tmp_outfile_name, strerror (errno));
5396 acfg->w = img_writer_create (acfg->fp, TRUE);
5397 acfg->use_bin_writer = TRUE;
5399 if (acfg->aot_opts.asm_only) {
5400 if (acfg->aot_opts.outfile)
5401 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5403 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
5404 acfg->fp = fopen (acfg->tmpfname, "w+");
5406 int i = g_file_open_tmp ("mono_aot_XXXXXX", &acfg->tmpfname, NULL);
5407 acfg->fp = fdopen (i, "w+");
5409 g_assert (acfg->fp);
5411 acfg->w = img_writer_create (acfg->fp, FALSE);
5413 tmp_outfile_name = NULL;
5414 outfile_name = NULL;
5417 acfg->temp_prefix = img_writer_get_temp_label_prefix (acfg->w);
5419 if (!acfg->aot_opts.nodebug)
5420 acfg->dwarf = mono_dwarf_writer_create (acfg->w, NULL, 0, FALSE);
5422 img_writer_emit_start (acfg->w);
5425 mono_dwarf_writer_emit_base_info (acfg->dwarf, arch_get_cie_program ());
5431 emit_extra_methods (acfg);
5433 emit_method_order (acfg);
5435 emit_trampolines (acfg);
5437 emit_class_name_table (acfg);
5439 emit_got_info (acfg);
5441 emit_exception_info (acfg);
5443 emit_unwind_info (acfg);
5445 emit_class_info (acfg);
5449 emit_image_table (acfg);
5453 emit_file_info (acfg);
5455 emit_globals (acfg);
5458 emit_dwarf_info (acfg);
5459 mono_dwarf_writer_close (acfg->dwarf);
5462 emit_mem_end (acfg);
5466 acfg->stats.gen_time = TV_ELAPSED (atv, btv);
5468 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)));
5471 res = img_writer_emit_writeout (acfg->w);
5476 if (acfg->use_bin_writer) {
5477 int err = rename (tmp_outfile_name, outfile_name);
5480 printf ("Unable to rename '%s' to '%s': %s\n", tmp_outfile_name, outfile_name, strerror (errno));
5484 res = compile_asm (acfg);
5491 acfg->stats.link_time = TV_ELAPSED (atv, btv);
5493 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);
5494 if (acfg->stats.genericcount)
5495 printf ("%d methods are generic (%d%%)\n", acfg->stats.genericcount, acfg->stats.mcount ? (acfg->stats.genericcount * 100) / acfg->stats.mcount : 100);
5496 if (acfg->stats.abscount)
5497 printf ("%d methods contain absolute addresses (%d%%)\n", acfg->stats.abscount, acfg->stats.mcount ? (acfg->stats.abscount * 100) / acfg->stats.mcount : 100);
5498 if (acfg->stats.lmfcount)
5499 printf ("%d methods contain lmf pointers (%d%%)\n", acfg->stats.lmfcount, acfg->stats.mcount ? (acfg->stats.lmfcount * 100) / acfg->stats.mcount : 100);
5500 if (acfg->stats.ocount)
5501 printf ("%d methods have other problems (%d%%)\n", acfg->stats.ocount, acfg->stats.mcount ? (acfg->stats.ocount * 100) / acfg->stats.mcount : 100);
5502 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);
5503 printf ("Direct calls: %d (%d%%)\n", acfg->stats.direct_calls, acfg->stats.all_calls ? (acfg->stats.direct_calls * 100) / acfg->stats.all_calls : 100);
5506 printf ("GOT slot distribution:\n");
5507 for (i = 0; i < MONO_PATCH_INFO_NONE; ++i)
5508 if (acfg->stats.got_slot_types [i])
5509 printf ("\t%s: %d\n", get_patch_name (i), acfg->stats.got_slot_types [i]);
5512 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);
5520 * Support for emitting debug info for JITted code.
5522 * This works as follows:
5523 * - the runtime writes out an xdb.s file containing DWARF debug info.
5524 * - the user calls a gdb macro
5525 * - the macro compiles and loads this shared library using add-symbol-file.
5527 * This is based on the xdebug functionality in the Kaffe Java VM.
5529 * We emit assembly code instead of using the ELF writer, so we can emit debug info
5530 * incrementally as each method is JITted, and the debugger doesn't have to call
5531 * into the runtime to emit the shared library, which would cause all kinds of
5532 * complications, like threading issues, and the fact that the ELF writer's
5533 * emit_writeout () function cannot be called more than once.
5534 * GDB 7.0 and later has a JIT interface.
5537 #define USE_GDB_JIT_INTERFACE
5539 /* The recommended gdb macro is: */
5542 shell rm -f xdb.so && as --64 -o xdb.o xdb.s && ld -shared -o xdb.so xdb.o
5543 add-symbol-file xdb.so 0
5548 * GDB JIT interface definitions.
5550 * http://sources.redhat.com/gdb/onlinedocs/gdb_30.html
5559 struct jit_code_entry
5561 struct jit_code_entry *next_entry;
5562 struct jit_code_entry *prev_entry;
5563 const char *symfile_addr;
5564 guint64 symfile_size;
5567 struct jit_descriptor
5570 /* This type should be jit_actions_t, but we use guint32
5571 to be explicit about the bitwidth. */
5572 guint32 action_flag;
5573 struct jit_code_entry *relevant_entry;
5574 struct jit_code_entry *first_entry;
5579 #define MONO_NOINLINE __declspec (noinline)
5581 #define MONO_NOINLINE __attribute__((noinline))
5584 /* GDB puts a breakpoint in this function. */
5585 void MONO_NOINLINE __jit_debug_register_code(void);
5587 void MONO_NOINLINE __jit_debug_register_code(void) { };
5589 /* Make sure to specify the version statically, because the
5590 debugger may check the version before we can set it. */
5591 struct jit_descriptor __jit_debug_descriptor = { 1, 0, 0, 0 };
5593 static MonoImageWriter *xdebug_w;
5594 static MonoDwarfWriter *xdebug_writer;
5595 static FILE *xdebug_fp, *il_file;
5596 static gboolean use_gdb_interface, save_symfiles;
5597 static int il_file_line_index;
5598 static GHashTable *xdebug_syms;
5601 mono_xdebug_init (char *options)
5606 args = g_strsplit (options, ",", -1);
5607 for (ptr = args; ptr && *ptr; ptr ++) {
5610 if (!strcmp (arg, "gdb"))
5611 use_gdb_interface = TRUE;
5612 if (!strcmp (arg, "save-symfiles"))
5613 save_symfiles = TRUE;
5616 /* This file will contain the IL code for methods which don't have debug info */
5617 il_file = fopen ("xdb.il", "w");
5619 if (use_gdb_interface)
5623 xdebug_fp = fopen ("xdb.s", "w");
5625 w = img_writer_create (xdebug_fp, FALSE);
5627 img_writer_emit_start (w);
5629 xdebug_writer = mono_dwarf_writer_create (w, il_file, 0, TRUE);
5631 /* Emit something so the file has a text segment */
5632 img_writer_emit_section_change (w, ".text", 0);
5633 img_writer_emit_string (w, "");
5635 mono_dwarf_writer_emit_base_info (xdebug_writer, arch_get_cie_program ());
5639 xdebug_begin_emit (MonoImageWriter **out_w, MonoDwarfWriter **out_dw)
5642 MonoDwarfWriter *dw;
5644 w = img_writer_create (NULL, TRUE);
5646 img_writer_emit_start (w);
5648 /* This file will contain the IL code for methods which don't have debug info */
5650 il_file = fopen ("xdb.il", "w");
5652 dw = mono_dwarf_writer_create (w, il_file, il_file_line_index, FALSE);
5654 mono_dwarf_writer_emit_base_info (dw, arch_get_cie_program ());
5661 xdebug_end_emit (MonoImageWriter *w, MonoDwarfWriter *dw, MonoMethod *method)
5665 struct jit_code_entry *entry;
5667 il_file_line_index = mono_dwarf_writer_get_il_file_line_index (dw);
5668 mono_dwarf_writer_close (dw);
5670 img_writer_emit_writeout (w);
5672 img = img_writer_get_output (w, &img_size);
5674 img_writer_destroy (w);
5677 /* Save the symbol files to help debugging */
5680 static int file_counter;
5683 file_name = g_strdup_printf ("xdb-%d.o", file_counter);
5684 //printf ("%s -> %s\n", mono_method_full_name (method, TRUE), file_name);
5686 fp = fopen (file_name, "w");
5687 fwrite (img, img_size, 1, fp);
5692 /* Register the image with GDB */
5694 entry = g_malloc (sizeof (struct jit_code_entry));
5696 entry->symfile_addr = (const char*)img;
5697 entry->symfile_size = img_size;
5699 entry->next_entry = __jit_debug_descriptor.first_entry;
5700 if (__jit_debug_descriptor.first_entry)
5701 __jit_debug_descriptor.first_entry->prev_entry = entry;
5702 __jit_debug_descriptor.first_entry = entry;
5704 __jit_debug_descriptor.relevant_entry = entry;
5705 __jit_debug_descriptor.action_flag = JIT_REGISTER_FN;
5707 __jit_debug_register_code ();
5711 * mono_xdebug_flush:
5713 * This could be called from inside gdb to flush the debugging information not yet
5714 * registered with gdb.
5717 mono_xdebug_flush (void)
5720 xdebug_end_emit (xdebug_w, xdebug_writer, NULL);
5722 xdebug_begin_emit (&xdebug_w, &xdebug_writer);
5725 static int xdebug_method_count;
5728 * mono_save_xdebug_info:
5730 * Emit debugging info for METHOD into an assembly file which can be assembled
5731 * and loaded into gdb to provide debugging info for JITted code.
5732 * LOCKING: Acquires the loader lock.
5735 mono_save_xdebug_info (MonoCompile *cfg)
5737 if (use_gdb_interface) {
5738 mono_loader_lock ();
5741 xdebug_syms = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
5744 * gdb is not designed to handle 1000s of symbol files (one per method). So we
5745 * group them into groups of 10.
5747 if ((xdebug_method_count % 10) == 0)
5748 mono_xdebug_flush ();
5750 xdebug_method_count ++;
5752 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 ()));
5756 * Emit a symbol for the code by emitting it at the beginning of the text
5757 * segment, and setting the text segment to have an absolute address.
5758 * This symbol can be used to set breakpoints in gdb.
5759 * FIXME: This doesn't work when multiple methods are emitted into the same file.
5761 sym = get_debug_sym (cfg->jit_info->method, "", xdebug_syms);
5762 img_writer_emit_section_change (w, ".text", 0);
5763 if (!xdebug_text_addr) {
5764 xdebug_text_addr = cfg->jit_info->code_start;
5765 img_writer_set_section_addr (w, (gssize)xdebug_text_addr);
5767 img_writer_emit_global_with_size (w, sym, cfg->jit_info->code_size, TRUE);
5768 img_writer_emit_label (w, sym);
5769 img_writer_emit_bytes (w, cfg->jit_info->code_start, cfg->jit_info->code_size);
5773 mono_loader_unlock ();
5778 mono_loader_lock ();
5779 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 ()));
5781 mono_loader_unlock ();
5786 * mono_save_trampoline_xdebug_info:
5788 * Same as mono_save_xdebug_info, but for trampolines.
5789 * LOCKING: Acquires the loader lock.
5792 mono_save_trampoline_xdebug_info (const char *tramp_name, guint8 *code, guint32 code_size, GSList *unwind_info)
5794 if (use_gdb_interface) {
5796 MonoDwarfWriter *dw;
5798 mono_loader_lock ();
5800 xdebug_begin_emit (&w, &dw);
5802 mono_dwarf_writer_emit_trampoline (dw, tramp_name, NULL, NULL, code, code_size, unwind_info);
5804 xdebug_end_emit (w, dw, NULL);
5806 mono_loader_unlock ();
5811 mono_loader_lock ();
5812 mono_dwarf_writer_emit_trampoline (xdebug_writer, tramp_name, NULL, NULL, code, code_size, unwind_info);
5814 mono_loader_unlock ();
5823 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
5829 mono_xdebug_init (char *options)
5834 mono_save_xdebug_info (MonoCompile *cfg)
5839 mono_save_trampoline_xdebug_info (const char *tramp_name, guint8 *code, guint32 code_size, GSList *unwind_info)