2 * aot-compiler.c: mono Ahead of Time compiler
5 * Dietmar Maurer (dietmar@ximian.com)
6 * Zoltan Varga (vargaz@gmail.com)
8 * (C) 2002 Ximian, Inc.
11 /* Remaining AOT-only work:
12 * - optimize the trampolines, generate more code in the arch files.
13 * - make things more consistent with how elf works, for example, use ELF
15 * Remaining generics sharing work:
16 * - optimize the size of the data which is encoded.
17 * - optimize the runtime loading of data:
18 * - the trampoline code calls mono_jit_info_table_find () to find the rgctx,
19 * which loads the debugging+exception handling info for the method. This is a
20 * huge waste of time and code, since the rgctx structure is currently empty.
21 * - every shared method has a MonoGenericJitInfo structure which is only really
22 * used for handling catch clauses with open types, not a very common use case.
26 #include <sys/types.h>
36 #ifndef PLATFORM_WIN32
46 #include <mono/metadata/tabledefs.h>
47 #include <mono/metadata/class.h>
48 #include <mono/metadata/object.h>
49 #include <mono/metadata/tokentype.h>
50 #include <mono/metadata/appdomain.h>
51 #include <mono/metadata/debug-helpers.h>
52 #include <mono/metadata/assembly.h>
53 #include <mono/metadata/metadata-internals.h>
54 #include <mono/metadata/marshal.h>
55 #include <mono/metadata/gc-internal.h>
56 #include <mono/metadata/monitor.h>
57 #include <mono/metadata/mempool-internals.h>
58 #include <mono/metadata/mono-endian.h>
59 #include <mono/metadata/threads-types.h>
60 #include <mono/utils/mono-logger.h>
61 #include <mono/utils/mono-compiler.h>
62 #include <mono/utils/mono-time.h>
63 #include <mono/utils/mono-mmap.h>
66 #include "image-writer.h"
67 #include "dwarfwriter.h"
69 #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
71 #define TV_DECLARE(name) gint64 name
72 #define TV_GETTIME(tv) tv = mono_100ns_ticks ()
73 #define TV_ELAPSED(start,end) (((end) - (start)) / 10)
76 #define SHARED_EXT ".dll"
77 #elif defined(__ppc__) && defined(__MACH__)
78 #define SHARED_EXT ".dylib"
80 #define SHARED_EXT ".so"
83 #define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
84 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
85 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
87 typedef struct MonoAotOptions {
90 gboolean write_symbols;
91 gboolean metadata_only;
92 gboolean bind_to_runtime_version;
101 gboolean print_skipped_methods;
105 typedef struct MonoAotStats {
106 int ccount, mcount, lmfcount, abscount, gcount, ocount, genericcount;
107 int code_size, info_size, ex_info_size, unwind_info_size, got_size, class_info_size, got_info_size, got_info_offsets_size;
108 int methods_without_got_slots, direct_calls, all_calls;
110 int got_slot_types [MONO_PATCH_INFO_NONE];
111 int jit_time, gen_time, link_time;
114 typedef struct MonoAotCompile {
117 GHashTable *method_indexes;
120 GHashTable *patch_to_plt_offset;
121 GHashTable *plt_offset_to_patch;
122 GHashTable *patch_to_got_offset;
123 GPtrArray *got_patches;
124 GHashTable *image_hash;
125 GHashTable *method_to_cfg;
126 GHashTable *token_info_hash;
127 GPtrArray *extra_methods;
128 GPtrArray *image_table;
131 guint32 *plt_got_info_offsets;
132 guint32 got_offset, plt_offset, plt_got_offset_base;
133 /* Number of GOT entries reserved for trampolines */
134 guint32 num_trampoline_got_entries;
136 guint32 num_trampolines [MONO_AOT_TRAMP_NUM];
137 guint32 trampoline_got_offset_base [MONO_AOT_TRAMP_NUM];
138 guint32 trampoline_size [MONO_AOT_TRAMP_NUM];
140 MonoAotOptions aot_opts;
143 MonoMemPool *mempool;
146 char *static_linking_symbol;
147 CRITICAL_SECTION mutex;
148 gboolean use_bin_writer;
150 MonoDwarfWriter *dwarf;
154 GHashTable *unwind_info_offsets;
155 GPtrArray *unwind_ops;
156 guint32 unwind_info_offset;
159 GHashTable *method_label_hash;
160 const char *temp_prefix;
161 guint32 label_generator;
164 #define mono_acfg_lock(acfg) EnterCriticalSection (&((acfg)->mutex))
165 #define mono_acfg_unlock(acfg) LeaveCriticalSection (&((acfg)->mutex))
167 #ifdef HAVE_ARRAY_ELEM_INIT
168 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
169 #define MSGSTRFIELD1(line) str##line
170 static const struct msgstr_t {
171 #define PATCH_INFO(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
172 #include "patch-info.h"
175 #define PATCH_INFO(a,b) b,
176 #include "patch-info.h"
179 static const gint16 opidx [] = {
180 #define PATCH_INFO(a,b) [MONO_PATCH_INFO_ ## a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
181 #include "patch-info.h"
185 static G_GNUC_UNUSED const char*
186 get_patch_name (int info)
188 return (const char*)&opstr + opidx [info];
192 #define PATCH_INFO(a,b) b,
193 static const char* const
194 patch_types [MONO_PATCH_INFO_NUM + 1] = {
195 #include "patch-info.h"
199 static G_GNUC_UNUSED const char*
200 get_patch_name (int info)
202 return patch_types [info];
207 /* Wrappers around the image writer functions */
210 emit_section_change (MonoAotCompile *acfg, const char *section_name, int subsection_index)
212 img_writer_emit_section_change (acfg->w, section_name, subsection_index);
216 emit_push_section (MonoAotCompile *acfg, const char *section_name, int subsection)
218 img_writer_emit_push_section (acfg->w, section_name, subsection);
222 emit_pop_section (MonoAotCompile *acfg)
224 img_writer_emit_pop_section (acfg->w);
228 emit_local_symbol (MonoAotCompile *acfg, const char *name, const char *end_label, gboolean func)
230 img_writer_emit_local_symbol (acfg->w, name, end_label, func);
234 emit_label (MonoAotCompile *acfg, const char *name)
236 img_writer_emit_label (acfg->w, name);
240 emit_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
242 img_writer_emit_bytes (acfg->w, buf, size);
246 emit_string (MonoAotCompile *acfg, const char *value)
248 img_writer_emit_string (acfg->w, value);
252 emit_line (MonoAotCompile *acfg)
254 img_writer_emit_line (acfg->w);
258 emit_alignment (MonoAotCompile *acfg, int size)
260 img_writer_emit_alignment (acfg->w, size);
264 emit_pointer_unaligned (MonoAotCompile *acfg, const char *target)
266 img_writer_emit_pointer_unaligned (acfg->w, target);
270 emit_pointer (MonoAotCompile *acfg, const char *target)
272 img_writer_emit_pointer (acfg->w, target);
276 emit_int16 (MonoAotCompile *acfg, int value)
278 img_writer_emit_int16 (acfg->w, value);
282 emit_int32 (MonoAotCompile *acfg, int value)
284 img_writer_emit_int32 (acfg->w, value);
288 emit_symbol_diff (MonoAotCompile *acfg, const char *end, const char* start, int offset)
290 img_writer_emit_symbol_diff (acfg->w, end, start, offset);
294 emit_zero_bytes (MonoAotCompile *acfg, int num)
296 img_writer_emit_zero_bytes (acfg->w, num);
300 emit_byte (MonoAotCompile *acfg, guint8 val)
302 img_writer_emit_byte (acfg->w, val);
305 static G_GNUC_UNUSED void
306 emit_global_inner (MonoAotCompile *acfg, const char *name, gboolean func)
308 img_writer_emit_global (acfg->w, name, func);
312 emit_global (MonoAotCompile *acfg, const char *name, gboolean func)
314 if (acfg->aot_opts.no_dlsym) {
315 g_ptr_array_add (acfg->globals, g_strdup (name));
316 img_writer_emit_local_symbol (acfg->w, name, NULL, func);
318 img_writer_emit_global (acfg->w, name, func);
323 emit_symbol_size (MonoAotCompile *acfg, const char *name, const char *end_label)
325 img_writer_emit_symbol_size (acfg->w, name, end_label);
329 emit_string_symbol (MonoAotCompile *acfg, const char *name, const char *value)
331 img_writer_emit_section_change (acfg->w, ".text", 1);
332 emit_global (acfg, name, FALSE);
333 img_writer_emit_label (acfg->w, name);
334 img_writer_emit_string (acfg->w, value);
337 static G_GNUC_UNUSED void
338 emit_uleb128 (MonoAotCompile *acfg, guint32 value)
341 guint8 b = value & 0x7f;
343 if (value != 0) /* more bytes to come */
349 static G_GNUC_UNUSED void
350 emit_sleb128 (MonoAotCompile *acfg, gint64 value)
353 gboolean negative = (value < 0);
360 /* the following is unnecessary if the
361 * implementation of >>= uses an arithmetic rather
362 * than logical shift for a signed left operand
366 value |= - ((gint64)1 <<(size - 7));
367 /* sign bit of byte is second high order bit (0x40) */
368 if ((value == 0 && !(byte & 0x40)) ||
369 (value == -1 && (byte & 0x40)))
373 emit_byte (acfg, byte);
377 static G_GNUC_UNUSED void
378 encode_uleb128 (guint32 value, guint8 *buf, guint8 **endbuf)
383 guint8 b = value & 0x7f;
385 if (value != 0) /* more bytes to come */
393 static G_GNUC_UNUSED void
394 encode_sleb128 (gint32 value, guint8 *buf, guint8 **endbuf)
397 gboolean negative = (value < 0);
405 /* the following is unnecessary if the
406 * implementation of >>= uses an arithmetic rather
407 * than logical shift for a signed left operand
411 value |= - (1 <<(size - 7));
412 /* sign bit of byte is second high order bit (0x40) */
413 if ((value == 0 && !(byte & 0x40)) ||
414 (value == -1 && (byte & 0x40)))
424 /* ARCHITECTURE SPECIFIC CODE */
426 #if defined(TARGET_X86) || defined(TARGET_AMD64) || defined(TARGET_ARM) || defined(TARGET_POWERPC)
427 #define EMIT_DWARF_INFO 1
430 #if defined(TARGET_ARM)
431 #define AOT_FUNC_ALIGNMENT 4
433 #define AOT_FUNC_ALIGNMENT 16
436 #if defined(TARGET_POWERPC64) && !defined(__mono_ilp32__)
437 #define PPC_LD_OP "ld"
438 #define PPC_LDX_OP "ldx"
440 #define PPC_LD_OP "lwz"
441 #define PPC_LDX_OP "lwzx"
445 * arch_emit_direct_call:
447 * Emit a direct call to the symbol TARGET. CALL_SIZE is set to the size of the
451 arch_emit_direct_call (MonoAotCompile *acfg, const char *target, int *call_size)
453 #if defined(TARGET_X86) || defined(TARGET_AMD64)
454 /* Need to make sure this is exactly 5 bytes long */
455 emit_byte (acfg, '\xe8');
456 emit_symbol_diff (acfg, target, ".", -4);
458 #elif defined(TARGET_ARM)
459 if (acfg->use_bin_writer) {
466 img_writer_emit_reloc (acfg->w, R_ARM_CALL, target, -8);
467 emit_bytes (acfg, buf, 4);
469 img_writer_emit_unset_mode (acfg->w);
470 fprintf (acfg->fp, "bl %s\n", target);
473 #elif defined(TARGET_POWERPC)
474 if (acfg->use_bin_writer) {
475 g_assert_not_reached ();
477 img_writer_emit_unset_mode (acfg->w);
478 fprintf (acfg->fp, "bl %s\n", target);
482 g_assert_not_reached ();
488 * - we use an approach similar to the x86 abi: reserve a register (r30) to hold
490 * - The full-aot trampolines need access to the GOT of mscorlib, so we store
491 * in in the 2. slot of every GOT, and require every method to place the GOT
492 * address in r30, even when it doesn't access the GOT otherwise. This way,
493 * the trampolines can compute the mscorlib GOT address by loading 4(r30).
498 * PPC64 uses function descriptors which greatly complicate all code, since
499 * these are used very inconsistently in the runtime. Some functions like
500 * mono_compile_method () return ftn descriptors, while others like the
501 * trampoline creation functions do not.
502 * We assume that all GOT slots contain function descriptors, and create
503 * descriptors in aot-runtime.c when needed.
504 * The ppc64 abi uses r2 to hold the address of the TOC/GOT, which is loaded
505 * from function descriptors, we could do the same, but it would require
506 * rewriting all the ppc/aot code to handle function descriptors properly.
507 * So instead, we use the same approach as on PPC32.
508 * This is a horrible mess, but fixing it would probably lead to an even bigger
512 #ifdef MONO_ARCH_AOT_SUPPORTED
514 * arch_emit_got_offset:
516 * The memory pointed to by CODE should hold native code for computing the GOT
517 * address. Emit this code while patching it with the offset between code and
518 * the GOT. CODE_SIZE is set to the number of bytes emitted.
521 arch_emit_got_offset (MonoAotCompile *acfg, guint8 *code, int *code_size)
523 #if defined(TARGET_POWERPC64)
524 g_assert (!acfg->use_bin_writer);
525 img_writer_emit_unset_mode (acfg->w);
527 * The ppc32 code doesn't seem to work on ppc64, the assembler complains about
528 * unsupported relocations. So we store the got address into the .Lgot_addr
529 * symbol which is in the text segment, compute its address, and load it.
531 fprintf (acfg->fp, ".L%d:\n", acfg->label_generator);
532 fprintf (acfg->fp, "lis 0, (.Lgot_addr + 4 - .L%d)@h\n", acfg->label_generator);
533 fprintf (acfg->fp, "ori 0, 0, (.Lgot_addr + 4 - .L%d)@l\n", acfg->label_generator);
534 fprintf (acfg->fp, "add 30, 30, 0\n");
535 fprintf (acfg->fp, "%s 30, 0(30)\n", PPC_LD_OP);
536 acfg->label_generator ++;
538 #elif defined(TARGET_POWERPC)
539 g_assert (!acfg->use_bin_writer);
540 img_writer_emit_unset_mode (acfg->w);
541 fprintf (acfg->fp, ".L%d:\n", acfg->label_generator);
542 fprintf (acfg->fp, "lis 0, (%s + 4 - .L%d)@h\n", acfg->got_symbol, acfg->label_generator);
543 fprintf (acfg->fp, "ori 0, 0, (%s + 4 - .L%d)@l\n", acfg->got_symbol, acfg->label_generator);
544 acfg->label_generator ++;
547 guint32 offset = mono_arch_get_patch_offset (code);
548 emit_bytes (acfg, code, offset);
549 emit_symbol_diff (acfg, acfg->got_symbol, ".", offset);
551 *code_size = offset + 4;
556 * arch_emit_got_access:
558 * The memory pointed to by CODE should hold native code for loading a GOT
559 * slot. Emit this code while patching it so it accesses the GOT slot GOT_SLOT.
560 * CODE_SIZE is set to the number of bytes emitted.
563 arch_emit_got_access (MonoAotCompile *acfg, guint8 *code, int got_slot, int *code_size)
565 /* Emit beginning of instruction */
566 emit_bytes (acfg, code, mono_arch_get_patch_offset (code));
568 /* Emit the offset */
570 emit_symbol_diff (acfg, acfg->got_symbol, ".", (unsigned int) ((got_slot * sizeof (gpointer)) - 4));
571 *code_size = mono_arch_get_patch_offset (code) + 4;
572 #elif defined(TARGET_X86)
573 emit_int32 (acfg, (unsigned int) ((got_slot * sizeof (gpointer))));
574 *code_size = mono_arch_get_patch_offset (code) + 4;
575 #elif defined(TARGET_ARM)
576 emit_symbol_diff (acfg, acfg->got_symbol, ".", (unsigned int) ((got_slot * sizeof (gpointer))) - 12);
577 *code_size = mono_arch_get_patch_offset (code) + 4;
578 #elif defined(TARGET_POWERPC)
584 ppc_load32 (code, ppc_r0, got_slot * sizeof (gpointer));
585 g_assert (code - buf == 8);
586 emit_bytes (acfg, buf, code - buf);
587 *code_size = code - buf;
590 g_assert_not_reached ();
597 * arch_emit_plt_entry:
599 * Emit code for the PLT entry with index INDEX.
602 arch_emit_plt_entry (MonoAotCompile *acfg, int index)
604 #if defined(TARGET_X86)
606 /* It is filled up during loading by the AOT loader. */
607 emit_zero_bytes (acfg, 16);
609 /* Need to make sure this is 9 bytes long */
610 emit_byte (acfg, '\xe9');
611 emit_symbol_diff (acfg, acfg->plt_symbol, ".", -4);
612 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
614 #elif defined(TARGET_AMD64)
616 * We can't emit jumps because they are 32 bits only so they can't be patched.
617 * So we make indirect calls through GOT entries which are patched by the AOT
618 * loader to point to .Lpd entries.
619 * An x86_64 plt entry is 10 bytes long, init_plt () depends on this.
621 /* jmpq *<offset>(%rip) */
622 emit_byte (acfg, '\xff');
623 emit_byte (acfg, '\x25');
624 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) -4);
625 /* Used by mono_aot_get_plt_info_offset */
626 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
627 #elif defined(TARGET_ARM)
632 * - optimize OP_AOTCONST implementation
633 * - optimize the PLT entries
634 * - optimize SWITCH AOT implementation
635 * - implement IMT support
638 if (acfg->use_bin_writer && FALSE) {
639 /* FIXME: mono_arch_patch_plt_entry () needs to decode this */
640 /* We only emit 1 relocation since we implement it ourselves anyway */
641 img_writer_emit_reloc (acfg->w, R_ARM_ALU_PC_G0_NC, acfg->got_symbol, ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) - 8);
642 /* FIXME: A 2 instruction encoding is sufficient in most cases */
643 ARM_ADD_REG_IMM (code, ARMREG_IP, ARMREG_PC, 0, 0);
644 ARM_ADD_REG_IMM (code, ARMREG_IP, ARMREG_IP, 0, 0);
645 ARM_LDR_IMM (code, ARMREG_PC, ARMREG_IP, 0);
646 emit_bytes (acfg, buf, code - buf);
647 /* Used by mono_aot_get_plt_info_offset */
648 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
650 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 0);
651 ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_IP);
652 emit_bytes (acfg, buf, code - buf);
653 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) - 4);
654 /* Used by mono_aot_get_plt_info_offset */
655 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
658 * The plt_got_info_offset is computed automatically by
659 * mono_aot_get_plt_info_offset (), so no need to save it here.
661 #elif defined(TARGET_POWERPC)
662 guint32 offset = (acfg->plt_got_offset_base + index) * sizeof (gpointer);
664 /* The GOT address is guaranteed to be in r30 by OP_LOAD_GOTADDR */
665 g_assert (!acfg->use_bin_writer);
666 img_writer_emit_unset_mode (acfg->w);
667 fprintf (acfg->fp, "lis 11, %d@h\n", offset);
668 fprintf (acfg->fp, "ori 11, 11, %d@l\n", offset);
669 fprintf (acfg->fp, "add 11, 11, 30\n");
670 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
671 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
672 fprintf (acfg->fp, "%s 2, %d(11)\n", PPC_LD_OP, (int)sizeof (gpointer));
673 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
675 fprintf (acfg->fp, "mtctr 11\n");
676 fprintf (acfg->fp, "bctr\n");
677 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
679 g_assert_not_reached ();
684 * arch_emit_specific_trampoline:
686 * Emit code for a specific trampoline. OFFSET is the offset of the first of
687 * two GOT slots which contain the generic trampoline address and the trampoline
688 * argument. TRAMP_SIZE is set to the size of the emitted trampoline.
691 arch_emit_specific_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
694 * The trampolines created here are variations of the specific
695 * trampolines created in mono_arch_create_specific_trampoline (). The
697 * - the generic trampoline address is taken from a got slot.
698 * - the offset of the got slot where the trampoline argument is stored
699 * is embedded in the instruction stream, and the generic trampoline
700 * can load the argument by loading the offset, adding it to the
701 * address of the trampoline to get the address of the got slot, and
702 * loading the argument from there.
703 * - all the trampolines should be of the same length.
705 #if defined(TARGET_AMD64)
706 /* This should be exactly 16 bytes long */
708 /* call *<offset>(%rip) */
709 emit_byte (acfg, '\x41');
710 emit_byte (acfg, '\xff');
711 emit_byte (acfg, '\x15');
712 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
713 /* This should be relative to the start of the trampoline */
714 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 19);
715 emit_zero_bytes (acfg, 5);
716 #elif defined(TARGET_ARM)
720 /* This should be exactly 20 bytes long */
723 ARM_PUSH (code, 0x5fff);
724 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 4);
725 /* Load the value from the GOT */
726 ARM_LDR_REG_REG (code, ARMREG_R1, ARMREG_PC, ARMREG_R1);
728 ARM_BLX_REG (code, ARMREG_R1);
730 g_assert (code - buf == 16);
733 emit_bytes (acfg, buf, code - buf);
735 * Only one offset is needed, since the second one would be equal to the
738 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 4);
739 //emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4 + 8);
740 #elif defined(TARGET_POWERPC)
747 g_assert (!acfg->use_bin_writer);
750 * PPC has no ip relative addressing, so we need to compute the address
751 * of the mscorlib got. That is slow and complex, so instead, we store it
752 * in the second got slot of every aot image. The caller already computed
753 * the address of its got and placed it into r30.
755 img_writer_emit_unset_mode (acfg->w);
756 /* Load mscorlib got address */
757 fprintf (acfg->fp, "%s 0, %d(30)\n", PPC_LD_OP, (int)sizeof (gpointer));
758 /* Load generic trampoline address */
759 fprintf (acfg->fp, "lis 11, %d@h\n", (int)(offset * sizeof (gpointer)));
760 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)(offset * sizeof (gpointer)));
761 fprintf (acfg->fp, "%s 11, 11, 0\n", PPC_LDX_OP);
762 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
763 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
765 fprintf (acfg->fp, "mtctr 11\n");
766 /* Load trampoline argument */
767 /* On ppc, we pass it normally to the generic trampoline */
768 fprintf (acfg->fp, "lis 11, %d@h\n", (int)((offset + 1) * sizeof (gpointer)));
769 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)((offset + 1) * sizeof (gpointer)));
770 fprintf (acfg->fp, "%s 0, 11, 0\n", PPC_LDX_OP);
771 /* Branch to generic trampoline */
772 fprintf (acfg->fp, "bctr\n");
774 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
775 *tramp_size = 10 * 4;
780 g_assert_not_reached ();
785 * arch_emit_unbox_trampoline:
787 * Emit code for the unbox trampoline for METHOD used in the full-aot case.
788 * CALL_TARGET is the symbol pointing to the native code of METHOD.
791 arch_emit_unbox_trampoline (MonoAotCompile *acfg, MonoMethod *method, MonoGenericSharingContext *gsctx, const char *call_target)
793 #if defined(TARGET_AMD64)
798 this_reg = mono_arch_get_this_arg_reg (mono_method_signature (method), gsctx, NULL);
800 amd64_alu_reg_imm (code, X86_ADD, this_reg, sizeof (MonoObject));
802 emit_bytes (acfg, buf, code - buf);
804 emit_byte (acfg, '\xe9');
805 emit_symbol_diff (acfg, call_target, ".", -4);
806 #elif defined(TARGET_ARM)
813 if (MONO_TYPE_ISSTRUCT (mono_method_signature (method)->ret))
816 ARM_ADD_REG_IMM8 (code, this_pos, this_pos, sizeof (MonoObject));
818 emit_bytes (acfg, buf, code - buf);
820 if (acfg->use_bin_writer) {
827 img_writer_emit_reloc (acfg->w, R_ARM_JUMP24, call_target, -8);
828 emit_bytes (acfg, buf, 4);
830 fprintf (acfg->fp, "\n\tb %s\n", call_target);
832 #elif defined(TARGET_POWERPC)
835 if (MONO_TYPE_ISSTRUCT (mono_method_signature (method)->ret))
838 g_assert (!acfg->use_bin_writer);
840 fprintf (acfg->fp, "\n\taddi %d, %d, %d\n", this_pos, this_pos, (int)sizeof (MonoObject));
841 fprintf (acfg->fp, "\n\tb %s\n", call_target);
843 g_assert_not_reached ();
848 * arch_emit_static_rgctx_trampoline:
850 * Emit code for a static rgctx trampoline. OFFSET is the offset of the first of
851 * two GOT slots which contain the rgctx argument, and the method to jump to.
852 * TRAMP_SIZE is set to the size of the emitted trampoline.
853 * These kinds of trampolines cannot be enumerated statically, since there could
854 * be one trampoline per method instantiation, so we emit the same code for all
855 * trampolines, and parameterize them using two GOT slots.
858 arch_emit_static_rgctx_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
860 #if defined(TARGET_AMD64)
861 /* This should be exactly 13 bytes long */
864 /* mov <OFFSET>(%rip), %r10 */
865 emit_byte (acfg, '\x4d');
866 emit_byte (acfg, '\x8b');
867 emit_byte (acfg, '\x15');
868 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
870 /* jmp *<offset>(%rip) */
871 emit_byte (acfg, '\xff');
872 emit_byte (acfg, '\x25');
873 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4);
874 #elif defined(TARGET_ARM)
878 /* This should be exactly 24 bytes long */
881 /* Load rgctx value */
882 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 8);
883 ARM_LDR_REG_REG (code, MONO_ARCH_RGCTX_REG, ARMREG_PC, ARMREG_R1);
884 /* Load branch addr + branch */
885 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 4);
886 ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_R1);
888 g_assert (code - buf == 16);
891 emit_bytes (acfg, buf, code - buf);
892 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 8);
893 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4 + 4);
894 #elif defined(TARGET_POWERPC)
901 g_assert (!acfg->use_bin_writer);
904 * PPC has no ip relative addressing, so we need to compute the address
905 * of the mscorlib got. That is slow and complex, so instead, we store it
906 * in the second got slot of every aot image. The caller already computed
907 * the address of its got and placed it into r30.
909 img_writer_emit_unset_mode (acfg->w);
910 /* Load mscorlib got address */
911 fprintf (acfg->fp, "%s 0, %d(30)\n", PPC_LD_OP, (int)sizeof (gpointer));
913 fprintf (acfg->fp, "lis 11, %d@h\n", (int)(offset * sizeof (gpointer)));
914 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)(offset * sizeof (gpointer)));
915 fprintf (acfg->fp, "%s %d, 11, 0\n", PPC_LDX_OP, MONO_ARCH_RGCTX_REG);
916 /* Load target address */
917 fprintf (acfg->fp, "lis 11, %d@h\n", (int)((offset + 1) * sizeof (gpointer)));
918 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)((offset + 1) * sizeof (gpointer)));
919 fprintf (acfg->fp, "%s 11, 11, 0\n", PPC_LDX_OP);
920 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
921 fprintf (acfg->fp, "%s 2, %d(11)\n", PPC_LD_OP, (int)sizeof (gpointer));
922 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
924 fprintf (acfg->fp, "mtctr 11\n");
925 /* Branch to the target address */
926 fprintf (acfg->fp, "bctr\n");
928 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
929 *tramp_size = 11 * 4;
935 g_assert_not_reached ();
940 * arch_emit_imt_thunk:
942 * Emit an IMT thunk usable in full-aot mode. The thunk uses 1 got slot which
943 * points to an array of pointer pairs. The pairs of the form [key, ptr], where
944 * key is the IMT key, and ptr holds the address of a memory location holding
945 * the address to branch to if the IMT arg matches the key. The array is
946 * terminated by a pair whose key is NULL, and whose ptr is the address of the
948 * TRAMP_SIZE is set to the size of the emitted trampoline.
951 arch_emit_imt_thunk (MonoAotCompile *acfg, int offset, int *tramp_size)
953 #if defined(TARGET_AMD64)
957 code = buf = g_malloc (256);
959 /* FIXME: Optimize this, i.e. use binary search etc. */
960 /* Maybe move the body into a separate function (slower, but much smaller) */
962 /* R10 is a free register */
965 amd64_alu_membase_imm (code, X86_CMP, AMD64_R10, 0, 0);
967 amd64_branch8 (code, X86_CC_Z, FALSE, 0);
970 amd64_alu_membase_reg (code, X86_CMP, AMD64_R10, 0, MONO_ARCH_IMT_REG);
972 amd64_branch8 (code, X86_CC_Z, FALSE, 0);
975 amd64_alu_reg_imm (code, X86_ADD, AMD64_R10, 2 * sizeof (gpointer));
976 amd64_jump_code (code, labels [0]);
979 mono_amd64_patch (labels [2], code);
980 amd64_mov_reg_membase (code, AMD64_R10, AMD64_R10, sizeof (gpointer), 8);
981 amd64_jump_membase (code, AMD64_R10, 0);
985 mono_amd64_patch (labels [1], code);
986 x86_breakpoint (code);
988 /* mov <OFFSET>(%rip), %r10 */
989 emit_byte (acfg, '\x4d');
990 emit_byte (acfg, '\x8b');
991 emit_byte (acfg, '\x15');
992 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
994 emit_bytes (acfg, buf, code - buf);
996 *tramp_size = code - buf + 7;
997 #elif defined(TARGET_ARM)
999 guint8 *code, *code2, *labels [16];
1003 /* The IMT method is in v5 */
1005 /* 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 (mono_marshal_method_from_wrapper (method) != method) {
1359 /* Direct wrapper, encode it normally */
1361 name = g_strdup_printf ("(wrapper runtime-invoke):%s (%s)", method->name, tmpsig);
1364 } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
1365 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1366 name = g_strdup_printf ("(wrapper delegate-invoke):%s (%s)", method->name, tmpsig);
1368 } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_BEGIN_INVOKE) {
1369 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1370 name = g_strdup_printf ("(wrapper delegate-begin-invoke):%s (%s)", method->name, tmpsig);
1372 } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_END_INVOKE) {
1373 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1374 name = g_strdup_printf ("(wrapper delegate-end-invoke):%s (%s)", method->name, tmpsig);
1380 encode_value ((MONO_AOT_METHODREF_WRAPPER_NAME << 24), p, &p);
1381 strcpy ((char*)p, name);
1382 p += strlen (name) + 1;
1384 } else if (method->wrapper_type) {
1385 encode_value ((MONO_AOT_METHODREF_WRAPPER << 24), p, &p);
1387 encode_value (method->wrapper_type, p, &p);
1389 switch (method->wrapper_type) {
1390 case MONO_WRAPPER_REMOTING_INVOKE:
1391 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
1392 case MONO_WRAPPER_XDOMAIN_INVOKE: {
1395 m = mono_marshal_method_from_wrapper (method);
1397 encode_method_ref (acfg, m, p, &p);
1400 case MONO_WRAPPER_PROXY_ISINST:
1401 case MONO_WRAPPER_LDFLD:
1402 case MONO_WRAPPER_LDFLDA:
1403 case MONO_WRAPPER_STFLD:
1404 case MONO_WRAPPER_ISINST: {
1405 MonoClass *proxy_class = (MonoClass*)mono_marshal_method_from_wrapper (method);
1406 encode_klass_ref (acfg, proxy_class, p, &p);
1409 case MONO_WRAPPER_LDFLD_REMOTE:
1410 case MONO_WRAPPER_STFLD_REMOTE:
1412 case MONO_WRAPPER_ALLOC: {
1413 int alloc_type = mono_gc_get_managed_allocator_type (method);
1414 g_assert (alloc_type != -1);
1415 encode_value (alloc_type, p, &p);
1418 case MONO_WRAPPER_STELEMREF:
1420 case MONO_WRAPPER_UNKNOWN:
1421 if (strcmp (method->name, "FastMonitorEnter") == 0)
1422 encode_value (MONO_AOT_WRAPPER_MONO_ENTER, p, &p);
1423 else if (strcmp (method->name, "FastMonitorExit") == 0)
1424 encode_value (MONO_AOT_WRAPPER_MONO_EXIT, p, &p);
1426 g_assert_not_reached ();
1428 case MONO_WRAPPER_SYNCHRONIZED:
1429 case MONO_WRAPPER_MANAGED_TO_NATIVE:
1430 case MONO_WRAPPER_RUNTIME_INVOKE: {
1433 m = mono_marshal_method_from_wrapper (method);
1435 g_assert (m != method);
1436 encode_method_ref (acfg, m, p, &p);
1440 g_assert_not_reached ();
1442 } else if (mono_method_signature (method)->is_inflated) {
1444 * This is a generic method, find the original token which referenced it and
1446 * Obtain the token from information recorded by the JIT.
1448 ji = g_hash_table_lookup (acfg->token_info_hash, method);
1450 image_index = get_image_index (acfg, ji->image);
1451 g_assert (image_index < MAX_IMAGE_INDEX);
1454 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
1455 encode_value (image_index, p, &p);
1456 encode_value (token, p, &p);
1458 MonoMethod *declaring;
1459 MonoGenericContext *context = mono_method_get_context (method);
1461 g_assert (method->is_inflated);
1462 declaring = ((MonoMethodInflated*)method)->declaring;
1465 * This might be a non-generic method of a generic instance, which
1466 * doesn't have a token since the reference is generated by the JIT
1467 * like Nullable:Box/Unbox, or by generic sharing.
1470 encode_value ((MONO_AOT_METHODREF_GINST << 24), p, &p);
1471 /* Encode the klass */
1472 encode_klass_ref (acfg, method->klass, p, &p);
1473 /* Encode the method */
1474 image_index = get_image_index (acfg, method->klass->image);
1475 g_assert (image_index < MAX_IMAGE_INDEX);
1476 g_assert (declaring->token);
1477 token = declaring->token;
1478 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
1479 encode_value (image_index, p, &p);
1480 encode_value (token, p, &p);
1481 encode_generic_context (acfg, context, p, &p);
1483 } else if (token == 0) {
1484 /* This might be a method of a constructed type like int[,].Set */
1485 /* Obtain the token from information recorded by the JIT */
1486 ji = g_hash_table_lookup (acfg->token_info_hash, method);
1488 image_index = get_image_index (acfg, ji->image);
1489 g_assert (image_index < MAX_IMAGE_INDEX);
1492 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
1493 encode_value (image_index, p, &p);
1494 encode_value (token, p, &p);
1497 g_assert (method->klass->rank);
1499 /* Encode directly */
1500 encode_value ((MONO_AOT_METHODREF_ARRAY << 24), p, &p);
1501 encode_klass_ref (acfg, method->klass, p, &p);
1502 if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank)
1503 encode_value (0, p, &p);
1504 else if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank * 2)
1505 encode_value (1, p, &p);
1506 else if (!strcmp (method->name, "Get"))
1507 encode_value (2, p, &p);
1508 else if (!strcmp (method->name, "Address"))
1509 encode_value (3, p, &p);
1510 else if (!strcmp (method->name, "Set"))
1511 encode_value (4, p, &p);
1513 g_assert_not_reached ();
1516 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
1517 encode_value ((image_index << 24) | mono_metadata_token_index (token), p, &p);
1523 compare_patches (gconstpointer a, gconstpointer b)
1527 i = (*(MonoJumpInfo**)a)->ip.i;
1528 j = (*(MonoJumpInfo**)b)->ip.i;
1542 * Return whenever PATCH_INFO refers to a direct call, and thus requires a
1545 static inline gboolean
1546 is_plt_patch (MonoJumpInfo *patch_info)
1548 switch (patch_info->type) {
1549 case MONO_PATCH_INFO_METHOD:
1550 case MONO_PATCH_INFO_INTERNAL_METHOD:
1551 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
1552 case MONO_PATCH_INFO_ICALL_ADDR:
1553 case MONO_PATCH_INFO_CLASS_INIT:
1554 case MONO_PATCH_INFO_RGCTX_FETCH:
1555 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
1556 case MONO_PATCH_INFO_MONITOR_ENTER:
1557 case MONO_PATCH_INFO_MONITOR_EXIT:
1565 get_plt_offset (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
1569 if (is_plt_patch (patch_info)) {
1570 int idx = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_plt_offset, patch_info));
1572 if (patch_info->type == MONO_PATCH_INFO_METHOD && (patch_info->data.method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)) {
1574 * Allocate a separate PLT slot for each such patch, since some plt
1575 * entries will refer to the method itself, and some will refer to
1584 MonoJumpInfo *new_ji = mono_patch_info_dup_mp (acfg->mempool, patch_info);
1586 res = acfg->plt_offset;
1587 g_hash_table_insert (acfg->plt_offset_to_patch, GUINT_TO_POINTER (res), new_ji);
1588 g_hash_table_insert (acfg->patch_to_plt_offset, new_ji, GUINT_TO_POINTER (res));
1589 acfg->plt_offset ++;
1599 * Returns the offset of the GOT slot where the runtime object resulting from resolving
1600 * JI could be found if it exists, otherwise allocates a new one.
1603 get_got_offset (MonoAotCompile *acfg, MonoJumpInfo *ji)
1607 got_offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_got_offset, ji));
1609 return got_offset - 1;
1611 got_offset = acfg->got_offset;
1612 acfg->got_offset ++;
1614 acfg->stats.got_slots ++;
1615 acfg->stats.got_slot_types [ji->type] ++;
1617 g_hash_table_insert (acfg->patch_to_got_offset, ji, GUINT_TO_POINTER (got_offset + 1));
1618 g_ptr_array_add (acfg->got_patches, ji);
1623 /* Add a method to the list of methods which need to be emitted */
1625 add_method_with_index (MonoAotCompile *acfg, MonoMethod *method, int index, gboolean extra)
1628 if (!g_hash_table_lookup (acfg->method_indexes, method)) {
1629 g_ptr_array_add (acfg->methods, method);
1630 g_hash_table_insert (acfg->method_indexes, method, GUINT_TO_POINTER (index + 1));
1631 acfg->nmethods = acfg->methods->len + 1;
1634 if (method->wrapper_type || extra)
1635 g_ptr_array_add (acfg->extra_methods, method);
1639 get_method_index (MonoAotCompile *acfg, MonoMethod *method)
1641 int index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
1649 add_method_full (MonoAotCompile *acfg, MonoMethod *method, gboolean extra)
1653 index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
1657 index = acfg->method_index;
1658 add_method_with_index (acfg, method, index, extra);
1660 /* FIXME: Fix quadratic behavior */
1661 acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (index));
1663 acfg->method_index ++;
1669 add_method (MonoAotCompile *acfg, MonoMethod *method)
1671 return add_method_full (acfg, method, FALSE);
1675 add_extra_method (MonoAotCompile *acfg, MonoMethod *method)
1677 add_method_full (acfg, method, TRUE);
1681 add_jit_icall_wrapper (gpointer key, gpointer value, gpointer user_data)
1683 MonoAotCompile *acfg = user_data;
1684 MonoJitICallInfo *callinfo = value;
1685 MonoMethod *wrapper;
1691 name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
1692 wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_for_pending_exc);
1695 add_method (acfg, wrapper);
1699 get_runtime_invoke_sig (MonoMethodSignature *sig)
1701 MonoMethodBuilder *mb;
1704 mb = mono_mb_new (mono_defaults.object_class, "FOO", MONO_WRAPPER_NONE);
1705 m = mono_mb_create_method (mb, sig, 16);
1706 return mono_marshal_get_runtime_invoke (m, FALSE);
1710 add_wrappers (MonoAotCompile *acfg)
1712 MonoMethod *method, *m;
1714 MonoMethodSignature *sig, *csig;
1718 * FIXME: Instead of AOTing all the wrappers, it might be better to redesign them
1719 * so there is only one wrapper of a given type, or inlining their contents into their
1724 * FIXME: This depends on the fact that different wrappers have different
1728 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
1730 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
1731 gboolean skip = FALSE;
1733 method = mono_get_method (acfg->image, token, NULL);
1735 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1736 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
1737 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
1740 if (method->is_generic || method->klass->generic_container)
1743 /* Skip methods which can not be handled by get_runtime_invoke () */
1744 sig = mono_method_signature (method);
1745 if ((sig->ret->type == MONO_TYPE_PTR) ||
1746 (sig->ret->type == MONO_TYPE_TYPEDBYREF))
1749 for (j = 0; j < sig->param_count; j++) {
1750 if (sig->params [j]->type == MONO_TYPE_TYPEDBYREF)
1755 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
1758 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
1759 #ifdef MONO_ARCH_HAVE_TLS_GET
1760 MonoMethodDesc *desc;
1761 MonoMethod *orig_method;
1765 /* Runtime invoke wrappers */
1767 /* void runtime-invoke () [.cctor] */
1768 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
1769 csig->ret = &mono_defaults.void_class->byval_arg;
1770 add_method (acfg, get_runtime_invoke_sig (csig));
1772 /* void runtime-invoke () [Finalize] */
1773 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
1775 csig->ret = &mono_defaults.void_class->byval_arg;
1776 add_method (acfg, get_runtime_invoke_sig (csig));
1778 /* void runtime-invoke (string) [exception ctor] */
1779 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
1781 csig->ret = &mono_defaults.void_class->byval_arg;
1782 csig->params [0] = &mono_defaults.string_class->byval_arg;
1783 add_method (acfg, get_runtime_invoke_sig (csig));
1785 /* void runtime-invoke (string, string) [exception ctor] */
1786 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
1788 csig->ret = &mono_defaults.void_class->byval_arg;
1789 csig->params [0] = &mono_defaults.string_class->byval_arg;
1790 csig->params [1] = &mono_defaults.string_class->byval_arg;
1791 add_method (acfg, get_runtime_invoke_sig (csig));
1793 /* string runtime-invoke () [Exception.ToString ()] */
1794 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
1796 csig->ret = &mono_defaults.string_class->byval_arg;
1797 add_method (acfg, get_runtime_invoke_sig (csig));
1799 /* void runtime-invoke (string, Exception) [exception ctor] */
1800 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
1802 csig->ret = &mono_defaults.void_class->byval_arg;
1803 csig->params [0] = &mono_defaults.string_class->byval_arg;
1804 csig->params [1] = &mono_defaults.exception_class->byval_arg;
1805 add_method (acfg, get_runtime_invoke_sig (csig));
1807 /* Assembly runtime-invoke (string, bool) [DoAssemblyResolve] */
1808 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
1810 csig->ret = &(mono_class_from_name (
1811 mono_defaults.corlib, "System.Reflection", "Assembly"))->byval_arg;
1812 csig->params [0] = &mono_defaults.string_class->byval_arg;
1813 csig->params [1] = &mono_defaults.boolean_class->byval_arg;
1814 add_method (acfg, get_runtime_invoke_sig (csig));
1816 /* runtime-invoke used by finalizers */
1817 add_method (acfg, mono_marshal_get_runtime_invoke (mono_class_get_method_from_name_flags (mono_defaults.object_class, "Finalize", 0, 0), TRUE));
1819 /* JIT icall wrappers */
1820 /* FIXME: locking */
1821 g_hash_table_foreach (mono_get_jit_icall_info (), add_jit_icall_wrapper, acfg);
1824 add_method (acfg, mono_marshal_get_stelemref ());
1826 #ifdef MONO_ARCH_HAVE_TLS_GET
1827 /* Managed Allocators */
1828 nallocators = mono_gc_get_managed_allocator_types ();
1829 for (i = 0; i < nallocators; ++i) {
1830 m = mono_gc_get_managed_allocator_by_type (i);
1832 add_method (acfg, m);
1835 /* Monitor Enter/Exit */
1836 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
1837 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
1838 g_assert (orig_method);
1839 mono_method_desc_free (desc);
1840 method = mono_monitor_get_fast_path (orig_method);
1842 add_method (acfg, method);
1844 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
1845 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
1846 g_assert (orig_method);
1847 mono_method_desc_free (desc);
1848 method = mono_monitor_get_fast_path (orig_method);
1850 add_method (acfg, method);
1855 * remoting-invoke-with-check wrappers are very frequent, so avoid emitting them,
1856 * we use the original method instead at runtime.
1857 * Since full-aot doesn't support remoting, this is not a problem.
1860 /* remoting-invoke wrappers */
1861 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
1862 MonoMethodSignature *sig;
1864 token = MONO_TOKEN_METHOD_DEF | (i + 1);
1865 method = mono_get_method (acfg->image, token, NULL);
1867 sig = mono_method_signature (method);
1869 if (sig->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class)) {
1870 m = mono_marshal_get_remoting_invoke_with_check (method);
1872 add_method (acfg, m);
1877 /* delegate-invoke wrappers */
1878 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
1881 token = MONO_TOKEN_TYPE_DEF | (i + 1);
1882 klass = mono_class_get (acfg->image, token);
1884 if (klass->delegate && klass != mono_defaults.delegate_class && klass != mono_defaults.multicastdelegate_class && !klass->generic_container) {
1885 method = mono_get_delegate_invoke (klass);
1887 m = mono_marshal_get_delegate_invoke (method, NULL);
1889 add_method (acfg, m);
1891 method = mono_class_get_method_from_name_flags (klass, "BeginInvoke", -1, 0);
1892 add_method (acfg, mono_marshal_get_delegate_begin_invoke (method));
1894 method = mono_class_get_method_from_name_flags (klass, "EndInvoke", -1, 0);
1895 add_method (acfg, mono_marshal_get_delegate_end_invoke (method));
1899 /* Synchronized wrappers */
1900 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
1901 token = MONO_TOKEN_METHOD_DEF | (i + 1);
1902 method = mono_get_method (acfg->image, token, NULL);
1904 if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
1905 add_method (acfg, mono_marshal_get_synchronized_wrapper (method));
1908 /* pinvoke wrappers */
1909 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
1911 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
1913 method = mono_get_method (acfg->image, token, NULL);
1915 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1916 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
1917 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
1921 /* StructureToPtr/PtrToStructure wrappers */
1922 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
1925 token = MONO_TOKEN_TYPE_DEF | (i + 1);
1926 klass = mono_class_get (acfg->image, token);
1928 if (klass->valuetype && !klass->generic_container && ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)) {
1929 gboolean can_marshal = TRUE;
1930 gpointer iter = NULL;
1931 MonoClassField *field;
1933 /* Only allow a few field types to avoid asserts in the marshalling code */
1934 while ((field = mono_class_get_fields (klass, &iter))) {
1935 switch (field->type->type) {
1940 case MONO_TYPE_BOOLEAN:
1943 case MONO_TYPE_CHAR:
1951 can_marshal = FALSE;
1957 add_method (acfg, mono_marshal_get_struct_to_ptr (klass));
1958 add_method (acfg, mono_marshal_get_ptr_to_struct (klass));
1965 has_type_vars (MonoClass *klass)
1967 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
1970 return has_type_vars (klass->element_class);
1971 if (klass->generic_class) {
1972 MonoGenericContext *context = &klass->generic_class->context;
1973 if (context->class_inst) {
1976 for (i = 0; i < context->class_inst->type_argc; ++i)
1977 if (has_type_vars (mono_class_from_mono_type (context->class_inst->type_argv [i])))
1985 method_has_type_vars (MonoMethod *method)
1987 if (has_type_vars (method->klass))
1990 if (method->is_inflated) {
1991 MonoGenericContext *context = mono_method_get_context (method);
1992 if (context->method_inst) {
1995 for (i = 0; i < context->method_inst->type_argc; ++i)
1996 if (has_type_vars (mono_class_from_mono_type (context->method_inst->type_argv [i])))
2004 * add_generic_class:
2006 * Add all methods of a generic class.
2009 add_generic_class (MonoAotCompile *acfg, MonoClass *klass)
2014 mono_class_init (klass);
2016 if (klass->generic_class && klass->generic_class->context.class_inst->is_open)
2019 if (has_type_vars (klass))
2022 if (!klass->generic_class && !klass->rank)
2026 while ((method = mono_class_get_methods (klass, &iter))) {
2027 if (mono_method_is_generic_sharable_impl (method, FALSE))
2031 if (method->is_generic)
2036 * FIXME: Instances which are referenced by these methods are not added,
2037 * for example Array.Resize<int> for List<int>.Add ().
2039 add_extra_method (acfg, method);
2042 if (klass->delegate) {
2043 method = mono_get_delegate_invoke (klass);
2045 method = mono_marshal_get_delegate_invoke (method, NULL);
2047 add_method (acfg, method);
2051 * For ICollection<T>, where T is a vtype, add instances of the helper methods
2052 * in Array, since a T[] could be cast to ICollection<T>.
2054 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") &&
2055 (!strcmp(klass->name, "ICollection`1") || !strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IList`1") || !strcmp (klass->name, "IEnumerator`1")) &&
2056 MONO_TYPE_ISSTRUCT (klass->generic_class->context.class_inst->type_argv [0])) {
2057 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
2058 MonoClass *array_class = mono_bounded_array_class_get (tclass, 1, FALSE);
2062 if (!strcmp (klass->name, "IEnumerator`1"))
2063 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, "IEnumerable`1");
2065 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
2067 /* Add the T[]/InternalEnumerator class */
2068 if (!strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IEnumerator`1")) {
2072 while ((nclass = mono_class_get_nested_types (array_class->parent, &iter))) {
2073 if (!strcmp (nclass->name, "InternalEnumerator`1"))
2077 nclass = mono_class_inflate_generic_class (nclass, mono_generic_class_get_context (klass->generic_class));
2078 add_generic_class (acfg, nclass);
2082 while ((method = mono_class_get_methods (array_class, &iter))) {
2083 if (strstr (method->name, name_prefix))
2084 add_extra_method (acfg, method);
2087 g_free (name_prefix);
2092 add_array_wrappers (MonoAotCompile *acfg, MonoClass *klass)
2096 mono_class_setup_methods (klass);
2097 for (i = 0; i < klass->method.count; ++i) {
2098 if (klass->methods [i]->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED)
2099 add_extra_method (acfg, klass->methods [i]);
2104 * add_generic_instances:
2106 * Add instances referenced by the METHODSPEC/TYPESPEC table.
2109 add_generic_instances (MonoAotCompile *acfg)
2114 MonoMethodHeader *header;
2115 MonoMethodSignature *sig;
2116 MonoGenericContext *context;
2118 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHODSPEC].rows; ++i) {
2119 token = MONO_TOKEN_METHOD_SPEC | (i + 1);
2120 method = mono_get_method (acfg->image, token, NULL);
2122 context = mono_method_get_context (method);
2123 if (context && ((context->class_inst && context->class_inst->is_open) ||
2124 (context->method_inst && context->method_inst->is_open)))
2127 if (method->klass->image != acfg->image)
2130 if (mono_method_is_generic_sharable_impl (method, FALSE))
2134 add_extra_method (acfg, method);
2137 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
2140 token = MONO_TOKEN_TYPE_SPEC | (i + 1);
2142 klass = mono_class_get (acfg->image, token);
2143 if (!klass || klass->rank)
2146 add_generic_class (acfg, klass);
2149 /* Add types of args/locals */
2150 for (i = 0; i < acfg->methods->len; ++i) {
2153 method = g_ptr_array_index (acfg->methods, i);
2155 sig = mono_method_signature (method);
2158 for (j = 0; j < sig->param_count; ++j)
2159 if (sig->params [j]->type == MONO_TYPE_GENERICINST)
2160 add_generic_class (acfg, mono_class_from_mono_type (sig->params [j]));
2163 header = mono_method_get_header (method);
2166 for (j = 0; j < header->num_locals; ++j)
2167 if (header->locals [j]->type == MONO_TYPE_GENERICINST)
2168 add_generic_class (acfg, mono_class_from_mono_type (header->locals [j]));
2172 if (acfg->image == mono_defaults.corlib) {
2173 /* Add GenericComparer<T> instances for primitive types for Enum.ToString () */
2174 MonoClass *klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericComparer`1");
2177 MonoGenericContext ctx;
2178 MonoType *args [16];
2180 memset (&ctx, 0, sizeof (ctx));
2182 args [0] = &mono_defaults.byte_class->byval_arg;
2183 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2184 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2186 args [0] = &mono_defaults.sbyte_class->byval_arg;
2187 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2188 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2190 args [0] = &mono_defaults.int16_class->byval_arg;
2191 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2192 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2194 args [0] = &mono_defaults.uint16_class->byval_arg;
2195 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2196 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2198 args [0] = &mono_defaults.int32_class->byval_arg;
2199 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2200 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2202 args [0] = &mono_defaults.uint32_class->byval_arg;
2203 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2204 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2206 args [0] = &mono_defaults.int64_class->byval_arg;
2207 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2208 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2210 args [0] = &mono_defaults.uint64_class->byval_arg;
2211 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2212 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2215 /* Add GenericEqualityComparer<T> instances for primitive types */
2216 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericEqualityComparer`1");
2219 MonoGenericContext ctx;
2220 MonoType *args [16];
2222 memset (&ctx, 0, sizeof (ctx));
2224 args [0] = &mono_defaults.byte_class->byval_arg;
2225 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2226 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2228 args [0] = &mono_defaults.sbyte_class->byval_arg;
2229 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2230 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2232 args [0] = &mono_defaults.int16_class->byval_arg;
2233 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2234 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2236 args [0] = &mono_defaults.uint16_class->byval_arg;
2237 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2238 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2240 args [0] = &mono_defaults.int32_class->byval_arg;
2241 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2242 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2244 args [0] = &mono_defaults.uint32_class->byval_arg;
2245 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2246 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2248 args [0] = &mono_defaults.int64_class->byval_arg;
2249 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2250 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2252 args [0] = &mono_defaults.uint64_class->byval_arg;
2253 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2254 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2257 /* Emit the array wrapper methods for arrays of primitive types */
2258 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.byte_class, 1));
2259 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.sbyte_class, 1));
2260 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.int16_class, 1));
2261 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.uint16_class, 1));
2262 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.int32_class, 1));
2263 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.uint32_class, 1));
2264 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.int64_class, 1));
2265 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.single_class, 1));
2266 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.double_class, 1));
2267 /* These are not handled by generic sharing */
2268 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.object_class, 1));
2269 add_array_wrappers (acfg, mono_array_class_get (mono_defaults.string_class, 1));
2271 /* Add instances of Array.GetGenericValueImpl */
2273 MonoGenericContext ctx;
2274 MonoType *args [16];
2277 memset (&ctx, 0, sizeof (ctx));
2280 * managed-to-native wrappers are not shared, so have to generate
2281 * these for ref types too.
2283 klass = mono_array_class_get (mono_defaults.int_class, 1)->parent;
2284 method = mono_class_get_method_from_name (klass, "GetGenericValueImpl", 2);
2288 args [0] = &mono_defaults.string_class->byval_arg;
2289 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
2290 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (method, &ctx), TRUE, TRUE));
2297 * is_direct_callable:
2299 * Return whenever the method identified by JI is directly callable without
2300 * going through the PLT.
2303 is_direct_callable (MonoAotCompile *acfg, MonoMethod *method, MonoJumpInfo *patch_info)
2305 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
2306 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
2308 gboolean direct_callable = TRUE;
2310 if (direct_callable && !(!callee_cfg->has_got_slots && (callee_cfg->method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)))
2311 direct_callable = FALSE;
2312 if ((callee_cfg->method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) && (!method || method->wrapper_type != MONO_WRAPPER_SYNCHRONIZED))
2313 // FIXME: Maybe call the wrapper directly ?
2314 direct_callable = FALSE;
2316 if (direct_callable)
2325 * emit_and_reloc_code:
2327 * Emit the native code in CODE, handling relocations along the way. If GOT_ONLY
2328 * is true, calls are made through the GOT too. This is used for emitting trampolines
2329 * in full-aot mode, since calls made from trampolines couldn't go through the PLT,
2330 * since trampolines are needed to make PTL work.
2333 emit_and_reloc_code (MonoAotCompile *acfg, MonoMethod *method, guint8 *code, guint32 code_len, MonoJumpInfo *relocs, gboolean got_only)
2335 int i, pindex, start_index, method_index;
2337 MonoJumpInfo *patch_info;
2338 MonoMethodHeader *header;
2339 gboolean skip, direct_call;
2341 char direct_call_target [128];
2344 header = mono_method_get_header (method);
2346 method_index = get_method_index (acfg, method);
2349 /* Collect and sort relocations */
2350 patches = g_ptr_array_new ();
2351 for (patch_info = relocs; patch_info; patch_info = patch_info->next)
2352 g_ptr_array_add (patches, patch_info);
2353 g_ptr_array_sort (patches, compare_patches);
2356 for (i = 0; i < code_len; i++) {
2358 for (pindex = start_index; pindex < patches->len; ++pindex) {
2359 patch_info = g_ptr_array_index (patches, pindex);
2360 if (patch_info->ip.i >= i)
2364 #ifdef MONO_ARCH_AOT_SUPPORTED
2366 if (patch_info && (patch_info->ip.i == i) && (pindex < patches->len)) {
2367 start_index = pindex;
2369 switch (patch_info->type) {
2370 case MONO_PATCH_INFO_NONE:
2372 case MONO_PATCH_INFO_GOT_OFFSET: {
2375 arch_emit_got_offset (acfg, code + i, &code_size);
2378 patch_info->type = MONO_PATCH_INFO_NONE;
2383 * If this patch is a call, try emitting a direct call instead of
2384 * through a PLT entry. This is possible if the called method is in
2385 * the same assembly and requires no initialization.
2387 direct_call = FALSE;
2388 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
2389 if (!got_only && is_direct_callable (acfg, method, patch_info)) {
2390 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
2391 //printf ("DIRECT: %s %s\n", method ? mono_method_full_name (method, TRUE) : "", mono_method_full_name (callee_cfg->method, TRUE));
2393 sprintf (direct_call_target, "%sm_%x", acfg->temp_prefix, get_method_index (acfg, callee_cfg->orig_method));
2394 patch_info->type = MONO_PATCH_INFO_NONE;
2395 acfg->stats.direct_calls ++;
2398 acfg->stats.all_calls ++;
2401 if (!got_only && !direct_call) {
2402 int plt_offset = get_plt_offset (acfg, patch_info);
2403 if (plt_offset != -1) {
2404 /* This patch has a PLT entry, so we must emit a call to the PLT entry */
2406 sprintf (direct_call_target, "%sp_%d", acfg->temp_prefix, plt_offset);
2408 /* Nullify the patch */
2409 patch_info->type = MONO_PATCH_INFO_NONE;
2416 arch_emit_direct_call (acfg, direct_call_target, &call_size);
2421 got_slot = get_got_offset (acfg, patch_info);
2423 arch_emit_got_access (acfg, code + i, got_slot, &code_size);
2430 #endif /* MONO_ARCH_AOT_SUPPORTED */
2433 /* Find next patch */
2435 for (pindex = start_index; pindex < patches->len; ++pindex) {
2436 patch_info = g_ptr_array_index (patches, pindex);
2437 if (patch_info->ip.i >= i)
2441 /* Try to emit multiple bytes at once */
2442 if (pindex < patches->len && patch_info->ip.i > i) {
2443 emit_bytes (acfg, code + i, patch_info->ip.i - i);
2444 i = patch_info->ip.i - 1;
2446 emit_bytes (acfg, code + i, 1);
2455 * Modify SYMBOL so it only includes characters permissible in symbols.
2458 sanitize_symbol (char *symbol)
2460 int i, len = strlen (symbol);
2462 for (i = 0; i < len; ++i)
2463 if (!isalnum (symbol [i]) && (symbol [i] != '_'))
2468 get_debug_sym (MonoMethod *method, const char *prefix, GHashTable *cache)
2470 char *name1, *name2, *cached;
2471 int i, j, len, count;
2473 name1 = mono_method_full_name (method, TRUE);
2474 len = strlen (name1);
2475 name2 = malloc (strlen (prefix) + len + 16);
2476 memcpy (name2, prefix, strlen (prefix));
2477 j = strlen (prefix);
2478 for (i = 0; i < len; ++i) {
2479 if (isalnum (name1 [i])) {
2480 name2 [j ++] = name1 [i];
2481 } else if (name1 [i] == ' ' && name1 [i + 1] == '(' && name1 [i + 2] == ')') {
2483 } else if (name1 [i] == ',' && name1 [i + 1] == ' ') {
2486 } else if (name1 [i] == '(' || name1 [i] == ')' || name1 [i] == '>') {
2495 while (g_hash_table_lookup (cache, name2)) {
2496 sprintf (name2 + j, "_%d", count);
2500 cached = g_strdup (name2);
2501 g_hash_table_insert (cache, cached, cached);
2507 emit_method_code (MonoAotCompile *acfg, MonoCompile *cfg)
2512 char *debug_sym = NULL;
2514 int func_alignment = AOT_FUNC_ALIGNMENT;
2515 MonoMethodHeader *header;
2517 method = cfg->orig_method;
2518 code = cfg->native_code;
2519 header = mono_method_get_header (method);
2521 method_index = get_method_index (acfg, method);
2523 /* Emit unbox trampoline */
2524 if (acfg->aot_opts.full_aot && cfg->orig_method->klass->valuetype && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
2525 char call_target [256];
2527 if (!method->wrapper_type && !method->is_inflated) {
2528 g_assert (method->token);
2529 sprintf (symbol, "ut_%d", mono_metadata_token_index (method->token) - 1);
2531 sprintf (symbol, "ut_e_%d", get_method_index (acfg, method));
2534 emit_section_change (acfg, ".text", 0);
2535 emit_global (acfg, symbol, TRUE);
2536 emit_label (acfg, symbol);
2538 sprintf (call_target, "%sm_%x", acfg->temp_prefix, method_index);
2540 arch_emit_unbox_trampoline (acfg, cfg->orig_method, cfg->generic_sharing_context, call_target);
2543 /* Make the labels local */
2544 sprintf (symbol, "%sm_%x", acfg->temp_prefix, method_index);
2546 emit_alignment (acfg, func_alignment);
2547 emit_label (acfg, symbol);
2549 if (acfg->aot_opts.write_symbols) {
2551 * Write a C style symbol for every method, this has two uses:
2552 * - it works on platforms where the dwarf debugging info is not
2554 * - it allows the setting of breakpoints of aot-ed methods.
2556 debug_sym = get_debug_sym (method, "", acfg->method_label_hash);
2558 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
2559 emit_local_symbol (acfg, debug_sym, symbol, TRUE);
2560 emit_label (acfg, debug_sym);
2563 if (cfg->verbose_level > 0)
2564 g_print ("Method %s emitted as %s\n", mono_method_full_name (method, TRUE), symbol);
2566 acfg->stats.code_size += cfg->code_len;
2568 acfg->cfgs [method_index]->got_offset = acfg->got_offset;
2570 emit_and_reloc_code (acfg, method, code, cfg->code_len, cfg->patch_info, FALSE);
2574 if (acfg->aot_opts.write_symbols) {
2575 emit_symbol_size (acfg, debug_sym, ".");
2579 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
2580 emit_label (acfg, symbol);
2586 * Encode PATCH_INFO into its disk representation.
2589 encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info, guint8 *buf, guint8 **endbuf)
2593 switch (patch_info->type) {
2594 case MONO_PATCH_INFO_NONE:
2596 case MONO_PATCH_INFO_IMAGE:
2597 encode_value (get_image_index (acfg, patch_info->data.image), p, &p);
2599 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
2601 case MONO_PATCH_INFO_METHOD_REL:
2602 encode_value ((gint)patch_info->data.offset, p, &p);
2604 case MONO_PATCH_INFO_SWITCH: {
2605 gpointer *table = (gpointer *)patch_info->data.table->table;
2608 encode_value (patch_info->data.table->table_size, p, &p);
2609 for (k = 0; k < patch_info->data.table->table_size; k++)
2610 encode_value ((int)(gssize)table [k], p, &p);
2613 case MONO_PATCH_INFO_METHODCONST:
2614 case MONO_PATCH_INFO_METHOD:
2615 case MONO_PATCH_INFO_METHOD_JUMP:
2616 case MONO_PATCH_INFO_ICALL_ADDR:
2617 case MONO_PATCH_INFO_METHOD_RGCTX:
2618 encode_method_ref (acfg, patch_info->data.method, p, &p);
2620 case MONO_PATCH_INFO_INTERNAL_METHOD:
2621 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
2622 guint32 len = strlen (patch_info->data.name);
2624 encode_value (len, p, &p);
2626 memcpy (p, patch_info->data.name, len);
2631 case MONO_PATCH_INFO_LDSTR: {
2632 guint32 image_index = get_image_index (acfg, patch_info->data.token->image);
2633 guint32 token = patch_info->data.token->token;
2634 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_STRING);
2635 encode_value (image_index, p, &p);
2636 encode_value (patch_info->data.token->token - MONO_TOKEN_STRING, p, &p);
2639 case MONO_PATCH_INFO_RVA:
2640 case MONO_PATCH_INFO_DECLSEC:
2641 case MONO_PATCH_INFO_LDTOKEN:
2642 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2643 encode_value (get_image_index (acfg, patch_info->data.token->image), p, &p);
2644 encode_value (patch_info->data.token->token, p, &p);
2645 encode_value (patch_info->data.token->has_context, p, &p);
2646 if (patch_info->data.token->has_context)
2647 encode_generic_context (acfg, &patch_info->data.token->context, p, &p);
2649 case MONO_PATCH_INFO_EXC_NAME: {
2650 MonoClass *ex_class;
2653 mono_class_from_name (mono_defaults.exception_class->image,
2654 "System", patch_info->data.target);
2655 g_assert (ex_class);
2656 encode_klass_ref (acfg, ex_class, p, &p);
2659 case MONO_PATCH_INFO_R4:
2660 encode_value (*((guint32 *)patch_info->data.target), p, &p);
2662 case MONO_PATCH_INFO_R8:
2663 encode_value (*((guint32 *)patch_info->data.target), p, &p);
2664 encode_value (*(((guint32 *)patch_info->data.target) + 1), p, &p);
2666 case MONO_PATCH_INFO_VTABLE:
2667 case MONO_PATCH_INFO_CLASS:
2668 case MONO_PATCH_INFO_IID:
2669 case MONO_PATCH_INFO_ADJUSTED_IID:
2670 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
2672 case MONO_PATCH_INFO_CLASS_INIT:
2673 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
2674 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
2676 case MONO_PATCH_INFO_FIELD:
2677 case MONO_PATCH_INFO_SFLDA:
2678 encode_field_info (acfg, patch_info->data.field, p, &p);
2680 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
2682 case MONO_PATCH_INFO_RGCTX_FETCH: {
2683 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
2685 encode_method_ref (acfg, entry->method, p, &p);
2686 encode_value (entry->in_mrgctx, p, &p);
2687 encode_value (entry->info_type, p, &p);
2688 encode_value (entry->data->type, p, &p);
2689 encode_patch (acfg, entry->data, p, &p);
2692 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
2693 case MONO_PATCH_INFO_MONITOR_ENTER:
2694 case MONO_PATCH_INFO_MONITOR_EXIT:
2697 g_warning ("unable to handle jump info %d", patch_info->type);
2698 g_assert_not_reached ();
2705 encode_patch_list (MonoAotCompile *acfg, GPtrArray *patches, int n_patches, int first_got_offset, guint8 *buf, guint8 **endbuf)
2708 guint32 pindex, offset;
2709 MonoJumpInfo *patch_info;
2711 encode_value (n_patches, p, &p);
2713 for (pindex = 0; pindex < patches->len; ++pindex) {
2714 patch_info = g_ptr_array_index (patches, pindex);
2716 if (patch_info->type == MONO_PATCH_INFO_NONE)
2720 offset = get_got_offset (acfg, patch_info);
2721 encode_value (offset, p, &p);
2728 emit_method_info (MonoAotCompile *acfg, MonoCompile *cfg)
2732 int pindex, buf_size, n_patches;
2736 MonoJumpInfo *patch_info;
2737 MonoMethodHeader *header;
2738 guint32 method_index;
2740 guint32 first_got_offset;
2742 method = cfg->orig_method;
2743 code = cfg->native_code;
2744 header = mono_method_get_header (method);
2746 method_index = get_method_index (acfg, method);
2748 /* Make the labels local */
2749 sprintf (symbol, "%sm_%x_p", acfg->temp_prefix, method_index);
2751 /* Sort relocations */
2752 patches = g_ptr_array_new ();
2753 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next)
2754 g_ptr_array_add (patches, patch_info);
2755 g_ptr_array_sort (patches, compare_patches);
2757 first_got_offset = acfg->cfgs [method_index]->got_offset;
2759 /**********************/
2760 /* Encode method info */
2761 /**********************/
2763 buf_size = (patches->len < 1000) ? 40960 : 40960 + (patches->len * 64);
2764 p = buf = g_malloc (buf_size);
2766 if (mono_class_get_cctor (method->klass))
2767 encode_klass_ref (acfg, method->klass, p, &p);
2769 /* Not needed when loading the method */
2770 encode_value (0, p, &p);
2773 if (cfg->opt & MONO_OPT_SHARED) {
2774 encode_value (g_list_length (cfg->ldstr_list), p, &p);
2775 for (l = cfg->ldstr_list; l; l = l->next) {
2776 encode_value ((long)l->data, p, &p);
2780 /* Used only in shared mode */
2781 g_assert (!cfg->ldstr_list);
2784 for (pindex = 0; pindex < patches->len; ++pindex) {
2785 patch_info = g_ptr_array_index (patches, pindex);
2787 if ((patch_info->type == MONO_PATCH_INFO_GOT_OFFSET) ||
2788 (patch_info->type == MONO_PATCH_INFO_NONE)) {
2789 patch_info->type = MONO_PATCH_INFO_NONE;
2794 if ((patch_info->type == MONO_PATCH_INFO_IMAGE) && (patch_info->data.image == acfg->image)) {
2795 /* Stored in a GOT slot initialized at module load time */
2796 patch_info->type = MONO_PATCH_INFO_NONE;
2800 if (is_plt_patch (patch_info)) {
2801 /* Calls are made through the PLT */
2802 patch_info->type = MONO_PATCH_INFO_NONE;
2810 g_assert (cfg->has_got_slots);
2812 encode_patch_list (acfg, patches, n_patches, first_got_offset, p, &p);
2814 acfg->stats.info_size += p - buf;
2816 /* Emit method info */
2818 emit_label (acfg, symbol);
2820 g_assert (p - buf < buf_size);
2821 emit_bytes (acfg, buf, p - buf);
2826 get_unwind_info_offset (MonoAotCompile *acfg, guint8 *encoded, guint32 encoded_len)
2828 guint32 cache_index;
2831 /* Reuse the unwind module to canonize and store unwind info entries */
2832 cache_index = mono_cache_unwind_info (encoded, encoded_len);
2834 /* Use +/- 1 to distinguish 0s from missing entries */
2835 offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1)));
2843 * It would be easier to use assembler symbols, but the caller needs an
2846 offset = acfg->unwind_info_offset;
2847 g_hash_table_insert (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1), GUINT_TO_POINTER (offset + 1));
2848 g_ptr_array_add (acfg->unwind_ops, GUINT_TO_POINTER (cache_index));
2851 encode_value (encoded_len, p, &p);
2853 acfg->unwind_info_offset += encoded_len + (p - buf);
2859 emit_exception_debug_info (MonoAotCompile *acfg, MonoCompile *cfg)
2862 int k, buf_size, method_index;
2863 guint32 debug_info_size;
2866 MonoMethodHeader *header;
2867 guint8 *p, *buf, *debug_info;
2868 MonoJitInfo *jinfo = cfg->jit_info;
2870 gboolean use_unwind_ops = FALSE;
2872 method = cfg->orig_method;
2873 code = cfg->native_code;
2874 header = mono_method_get_header (method);
2876 method_index = get_method_index (acfg, method);
2878 /* Make the labels local */
2879 sprintf (symbol, "%se_%x_p", acfg->temp_prefix, method_index);
2881 if (!acfg->aot_opts.nodebug) {
2882 mono_debug_serialize_debug_info (cfg, &debug_info, &debug_info_size);
2885 debug_info_size = 0;
2888 buf_size = header->num_clauses * 256 + debug_info_size + 1024;
2889 p = buf = g_malloc (buf_size);
2891 #ifdef MONO_ARCH_HAVE_XP_UNWIND
2892 use_unwind_ops = cfg->unwind_ops != NULL;
2895 flags = (jinfo->has_generic_jit_info ? 1 : 0) | (use_unwind_ops ? 2 : 0) | (header->num_clauses ? 4 : 0);
2897 encode_value (jinfo->code_size, p, &p);
2898 encode_value (flags, p, &p);
2900 if (use_unwind_ops) {
2901 guint32 encoded_len;
2905 * This is a duplicate of the data in the .debug_frame section, but that
2906 * section cannot be accessed using the dl interface.
2908 encoded = mono_unwind_ops_encode (cfg->unwind_ops, &encoded_len);
2909 encode_value (get_unwind_info_offset (acfg, encoded, encoded_len), p, &p);
2912 encode_value (jinfo->used_regs, p, &p);
2915 /* Exception table */
2916 if (jinfo->num_clauses)
2917 encode_value (jinfo->num_clauses, p, &p);
2919 for (k = 0; k < jinfo->num_clauses; ++k) {
2920 MonoJitExceptionInfo *ei = &jinfo->clauses [k];
2922 encode_value (ei->exvar_offset, p, &p);
2924 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER)
2925 encode_value ((gint)((guint8*)ei->data.filter - code), p, &p);
2927 if (ei->data.catch_class) {
2928 encode_value (1, p, &p);
2929 encode_klass_ref (acfg, ei->data.catch_class, p, &p);
2931 encode_value (0, p, &p);
2935 encode_value ((gint)((guint8*)ei->try_start - code), p, &p);
2936 encode_value ((gint)((guint8*)ei->try_end - code), p, &p);
2937 encode_value ((gint)((guint8*)ei->handler_start - code), p, &p);
2940 if (jinfo->has_generic_jit_info) {
2941 MonoGenericJitInfo *gi = mono_jit_info_get_generic_jit_info (jinfo);
2943 encode_value (gi->has_this ? 1 : 0, p, &p);
2944 encode_value (gi->this_reg, p, &p);
2945 encode_value (gi->this_offset, p, &p);
2948 * Need to encode jinfo->method too, since it is not equal to 'method'
2949 * when using generic sharing.
2951 encode_method_ref (acfg, jinfo->method, p, &p);
2954 g_assert (debug_info_size < buf_size);
2956 encode_value (debug_info_size, p, &p);
2957 if (debug_info_size) {
2958 memcpy (p, debug_info, debug_info_size);
2959 p += debug_info_size;
2960 g_free (debug_info);
2963 acfg->stats.ex_info_size += p - buf;
2967 emit_label (acfg, symbol);
2969 g_assert (p - buf < buf_size);
2970 emit_bytes (acfg, buf, p - buf);
2975 emit_klass_info (MonoAotCompile *acfg, guint32 token)
2977 MonoClass *klass = mono_class_get (acfg->image, token);
2981 gboolean no_special_static, cant_encode;
2982 gpointer iter = NULL;
2984 buf_size = 10240 + (klass->vtable_size * 16);
2985 p = buf = g_malloc (buf_size);
2989 mono_class_init (klass);
2991 mono_class_get_nested_types (klass, &iter);
2992 g_assert (klass->nested_classes_inited);
2994 mono_class_setup_vtable (klass);
2997 * Emit all the information which is required for creating vtables so
2998 * the runtime does not need to create the MonoMethod structures which
2999 * take up a lot of space.
3002 no_special_static = !mono_class_has_special_static_fields (klass);
3004 /* Check whenever we have enough info to encode the vtable */
3005 cant_encode = FALSE;
3006 for (i = 0; i < klass->vtable_size; ++i) {
3007 MonoMethod *cm = klass->vtable [i];
3009 if (cm && mono_method_signature (cm)->is_inflated && !g_hash_table_lookup (acfg->token_info_hash, cm))
3013 if (klass->generic_container || cant_encode) {
3014 encode_value (-1, p, &p);
3016 encode_value (klass->vtable_size, p, &p);
3017 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);
3018 if (klass->has_cctor)
3019 encode_method_ref (acfg, mono_class_get_cctor (klass), p, &p);
3020 if (klass->has_finalize)
3021 encode_method_ref (acfg, mono_class_get_finalizer (klass), p, &p);
3023 encode_value (klass->instance_size, p, &p);
3024 encode_value (mono_class_data_size (klass), p, &p);
3025 encode_value (klass->packing_size, p, &p);
3026 encode_value (klass->min_align, p, &p);
3028 for (i = 0; i < klass->vtable_size; ++i) {
3029 MonoMethod *cm = klass->vtable [i];
3032 encode_method_ref (acfg, cm, p, &p);
3034 encode_value (0, p, &p);
3038 acfg->stats.class_info_size += p - buf;
3041 sprintf (symbol, "%sK_I_%x", acfg->temp_prefix, token - MONO_TOKEN_TYPE_DEF - 1);
3042 emit_label (acfg, symbol);
3044 g_assert (p - buf < buf_size);
3045 emit_bytes (acfg, buf, p - buf);
3050 * Calls made from AOTed code are routed through a table of jumps similar to the
3051 * ELF PLT (Program Linkage Table). The differences are the following:
3052 * - the ELF PLT entries make an indirect jump though the GOT so they expect the
3053 * GOT pointer to be in EBX. We want to avoid this, so our table contains direct
3054 * jumps. This means the jumps need to be patched when the address of the callee is
3055 * known. Initially the PLT entries jump to code which transfers control to the
3056 * AOT runtime through the first PLT entry.
3059 emit_plt (MonoAotCompile *acfg)
3065 cache = g_hash_table_new (g_str_hash, g_str_equal);
3068 sprintf (symbol, "plt");
3070 emit_section_change (acfg, ".text", 0);
3071 emit_global (acfg, symbol, TRUE);
3073 /* This section will be made read-write by the AOT loader */
3074 emit_alignment (acfg, mono_pagesize ());
3076 emit_alignment (acfg, 16);
3078 emit_label (acfg, symbol);
3079 emit_label (acfg, acfg->plt_symbol);
3081 for (i = 0; i < acfg->plt_offset; ++i) {
3083 char *debug_sym = NULL;
3085 sprintf (label, "%sp_%d", acfg->temp_prefix, i);
3086 emit_label (acfg, label);
3088 if (acfg->aot_opts.write_symbols) {
3089 MonoJumpInfo *ji = g_hash_table_lookup (acfg->plt_offset_to_patch, GUINT_TO_POINTER (i));
3090 char *debug_sym = NULL;
3094 case MONO_PATCH_INFO_METHOD:
3095 debug_sym = get_debug_sym (ji->data.method, "plt_", cache);
3097 case MONO_PATCH_INFO_INTERNAL_METHOD:
3098 debug_sym = g_strdup_printf ("plt__jit_icall_%s", ji->data.name);
3100 case MONO_PATCH_INFO_CLASS_INIT:
3101 debug_sym = g_strdup_printf ("plt__class_init_%s", mono_type_get_name (&ji->data.klass->byval_arg));
3102 sanitize_symbol (debug_sym);
3104 case MONO_PATCH_INFO_RGCTX_FETCH:
3105 debug_sym = g_strdup_printf ("plt__rgctx_fetch_%d", acfg->label_generator ++);
3107 case MONO_PATCH_INFO_ICALL_ADDR: {
3108 char *s = get_debug_sym (ji->data.method, "", cache);
3110 debug_sym = g_strdup_printf ("plt__icall_native_%s", s);
3114 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
3115 debug_sym = g_strdup_printf ("plt__jit_icall_native_%s", ji->data.name);
3117 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
3118 debug_sym = g_strdup_printf ("plt__generic_class_init");
3125 emit_local_symbol (acfg, debug_sym, NULL, TRUE);
3126 emit_label (acfg, debug_sym);
3132 * The first plt entry is used to transfer code to the AOT loader.
3134 arch_emit_plt_entry (acfg, i);
3137 emit_symbol_size (acfg, debug_sym, ".");
3142 emit_symbol_size (acfg, acfg->plt_symbol, ".");
3144 sprintf (symbol, "plt_end");
3145 emit_global (acfg, symbol, TRUE);
3146 emit_label (acfg, symbol);
3148 g_hash_table_destroy (cache);
3151 static G_GNUC_UNUSED void
3152 emit_trampoline (MonoAotCompile *acfg, const char *name, guint8 *code,
3153 guint32 code_size, int got_offset, MonoJumpInfo *ji, GSList *unwind_ops)
3155 char start_symbol [256];
3158 MonoJumpInfo *patch_info;
3164 sprintf (start_symbol, "%s", name);
3166 emit_section_change (acfg, ".text", 0);
3167 emit_global (acfg, start_symbol, TRUE);
3168 emit_alignment (acfg, 16);
3169 emit_label (acfg, start_symbol);
3171 sprintf (symbol, "%snamed_%s", acfg->temp_prefix, name);
3172 emit_label (acfg, symbol);
3175 * The code should access everything through the GOT, so we pass
3178 emit_and_reloc_code (acfg, NULL, code, code_size, ji, TRUE);
3180 emit_symbol_size (acfg, start_symbol, ".");
3184 /* Sort relocations */
3185 patches = g_ptr_array_new ();
3186 for (patch_info = ji; patch_info; patch_info = patch_info->next)
3187 if (patch_info->type != MONO_PATCH_INFO_NONE)
3188 g_ptr_array_add (patches, patch_info);
3189 g_ptr_array_sort (patches, compare_patches);
3191 buf_size = patches->len * 128 + 128;
3192 buf = g_malloc (buf_size);
3195 encode_patch_list (acfg, patches, patches->len, got_offset, p, &p);
3196 g_assert (p - buf < buf_size);
3198 sprintf (symbol, "%s_p", name);
3200 emit_section_change (acfg, ".text", 0);
3201 emit_global (acfg, symbol, FALSE);
3202 emit_label (acfg, symbol);
3204 emit_bytes (acfg, buf, p - buf);
3206 /* Emit debug info */
3210 sprintf (symbol, "%s", name);
3211 sprintf (symbol2, "%snamed_%s", acfg->temp_prefix, name);
3214 mono_dwarf_writer_emit_trampoline (acfg->dwarf, symbol, symbol2, NULL, NULL, code_size, unwind_ops);
3219 emit_trampolines (MonoAotCompile *acfg)
3222 int i, tramp_got_offset;
3223 MonoAotTrampoline ntype;
3224 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
3232 if (!acfg->aot_opts.full_aot)
3235 g_assert (acfg->image->assembly);
3237 /* Currently, we only emit most trampolines into the mscorlib AOT image. */
3238 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
3239 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
3241 * Emit the generic trampolines.
3243 * We could save some code by treating the generic trampolines as a wrapper
3244 * method, but that approach has its own complexities, so we choose the simpler
3247 for (tramp_type = 0; tramp_type < MONO_TRAMPOLINE_NUM; ++tramp_type) {
3248 code = mono_arch_create_trampoline_code_full (tramp_type, &code_size, &ji, &unwind_ops, TRUE);
3250 /* Emit trampoline code */
3252 sprintf (symbol, "generic_trampoline_%d", tramp_type);
3254 emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, unwind_ops);
3257 code = mono_arch_get_nullified_class_init_trampoline (&code_size);
3258 emit_trampoline (acfg, "nullified_class_init_trampoline", code, code_size, acfg->got_offset, NULL, NULL);
3259 #if defined(TARGET_AMD64) && defined(MONO_ARCH_MONITOR_OBJECT_REG)
3260 code = mono_arch_create_monitor_enter_trampoline_full (&code_size, &ji, TRUE);
3261 emit_trampoline (acfg, "monitor_enter_trampoline", code, code_size, acfg->got_offset, ji, NULL);
3262 code = mono_arch_create_monitor_exit_trampoline_full (&code_size, &ji, TRUE);
3263 emit_trampoline (acfg, "monitor_exit_trampoline", code, code_size, acfg->got_offset, ji, NULL);
3266 code = mono_arch_create_generic_class_init_trampoline_full (&code_size, &ji, TRUE);
3267 emit_trampoline (acfg, "generic_class_init_trampoline", code, code_size, acfg->got_offset, ji, NULL);
3269 /* Emit the exception related code pieces */
3270 code = mono_arch_get_restore_context_full (&code_size, &ji, TRUE);
3271 emit_trampoline (acfg, "restore_context", code, code_size, acfg->got_offset, ji, NULL);
3272 code = mono_arch_get_call_filter_full (&code_size, &ji, TRUE);
3273 emit_trampoline (acfg, "call_filter", code, code_size, acfg->got_offset, ji, NULL);
3274 code = mono_arch_get_throw_exception_full (&code_size, &ji, TRUE);
3275 emit_trampoline (acfg, "throw_exception", code, code_size, acfg->got_offset, ji, NULL);
3276 code = mono_arch_get_rethrow_exception_full (&code_size, &ji, TRUE);
3277 emit_trampoline (acfg, "rethrow_exception", code, code_size, acfg->got_offset, ji, NULL);
3278 code = mono_arch_get_throw_exception_by_name_full (&code_size, &ji, TRUE);
3279 emit_trampoline (acfg, "throw_exception_by_name", code, code_size, acfg->got_offset, ji, NULL);
3280 code = mono_arch_get_throw_corlib_exception_full (&code_size, &ji, TRUE);
3281 emit_trampoline (acfg, "throw_corlib_exception", code, code_size, acfg->got_offset, ji, NULL);
3283 #if defined(TARGET_AMD64)
3284 code = mono_arch_get_throw_pending_exception_full (&code_size, &ji, TRUE);
3285 emit_trampoline (acfg, "throw_pending_exception", code, code_size, acfg->got_offset, ji, NULL);
3288 for (i = 0; i < 128; ++i) {
3291 offset = MONO_RGCTX_SLOT_MAKE_RGCTX (i);
3292 code = mono_arch_create_rgctx_lazy_fetch_trampoline_full (offset, &code_size, &ji, TRUE);
3293 sprintf (symbol, "rgctx_fetch_trampoline_%u", offset);
3294 emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, NULL);
3296 offset = MONO_RGCTX_SLOT_MAKE_MRGCTX (i);
3297 code = mono_arch_create_rgctx_lazy_fetch_trampoline_full (offset, &code_size, &ji, TRUE);
3298 sprintf (symbol, "rgctx_fetch_trampoline_%u", offset);
3299 emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, NULL);
3305 /* delegate_invoke_impl trampolines */
3306 l = mono_arch_get_delegate_invoke_impls ();
3308 MonoAotTrampInfo *info = l->data;
3310 emit_trampoline (acfg, info->name, info->code, info->code_size, acfg->got_offset, NULL, NULL);
3315 #endif /* #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES */
3317 /* Emit trampolines which are numerous */
3320 * These include the following:
3321 * - specific trampolines
3322 * - static rgctx invoke trampolines
3324 * These trampolines have the same code, they are parameterized by GOT
3326 * They are defined in this file, in the arch_... routines instead of
3327 * in tramp-<ARCH>.c, since it is easier to do it this way.
3331 * When running in aot-only mode, we can't create specific trampolines at
3332 * runtime, so we create a few, and save them in the AOT file.
3333 * Normal trampolines embed their argument as a literal inside the
3334 * trampoline code, we can't do that here, so instead we embed an offset
3335 * which needs to be added to the trampoline address to get the address of
3336 * the GOT slot which contains the argument value.
3337 * The generated trampolines jump to the generic trampolines using another
3338 * GOT slot, which will be setup by the AOT loader to point to the
3339 * generic trampoline code of the given type.
3343 * FIXME: Maybe we should use more specific trampolines (i.e. one class init for
3347 emit_section_change (acfg, ".text", 0);
3349 tramp_got_offset = acfg->got_offset;
3351 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype) {
3353 case MONO_AOT_TRAMP_SPECIFIC:
3354 sprintf (symbol, "specific_trampolines");
3356 case MONO_AOT_TRAMP_STATIC_RGCTX:
3357 sprintf (symbol, "static_rgctx_trampolines");
3359 case MONO_AOT_TRAMP_IMT_THUNK:
3360 sprintf (symbol, "imt_thunks");
3363 g_assert_not_reached ();
3366 emit_global (acfg, symbol, TRUE);
3367 emit_alignment (acfg, 16);
3368 emit_label (acfg, symbol);
3370 acfg->trampoline_got_offset_base [ntype] = tramp_got_offset;
3372 for (i = 0; i < acfg->num_trampolines [ntype]; ++i) {
3376 case MONO_AOT_TRAMP_SPECIFIC:
3377 arch_emit_specific_trampoline (acfg, tramp_got_offset, &tramp_size);
3378 tramp_got_offset += 2;
3380 case MONO_AOT_TRAMP_STATIC_RGCTX:
3381 arch_emit_static_rgctx_trampoline (acfg, tramp_got_offset, &tramp_size);
3382 tramp_got_offset += 2;
3384 case MONO_AOT_TRAMP_IMT_THUNK:
3385 arch_emit_imt_thunk (acfg, tramp_got_offset, &tramp_size);
3386 tramp_got_offset += 1;
3389 g_assert_not_reached ();
3392 if (!acfg->trampoline_size [ntype]) {
3393 g_assert (tramp_size);
3394 acfg->trampoline_size [ntype] = tramp_size;
3399 /* Reserve some entries at the end of the GOT for our use */
3400 acfg->num_trampoline_got_entries = tramp_got_offset - acfg->got_offset;
3403 acfg->got_offset += acfg->num_trampoline_got_entries;
3407 str_begins_with (const char *str1, const char *str2)
3409 int len = strlen (str2);
3410 return strncmp (str1, str2, len) == 0;
3414 mono_aot_parse_options (const char *aot_options, MonoAotOptions *opts)
3416 gchar **args, **ptr;
3418 args = g_strsplit (aot_options ? aot_options : "", ",", -1);
3419 for (ptr = args; ptr && *ptr; ptr ++) {
3420 const char *arg = *ptr;
3422 if (str_begins_with (arg, "outfile=")) {
3423 opts->outfile = g_strdup (arg + strlen ("outfile="));
3424 } else if (str_begins_with (arg, "save-temps")) {
3425 opts->save_temps = TRUE;
3426 } else if (str_begins_with (arg, "keep-temps")) {
3427 opts->save_temps = TRUE;
3428 } else if (str_begins_with (arg, "write-symbols")) {
3429 opts->write_symbols = TRUE;
3430 } else if (str_begins_with (arg, "metadata-only")) {
3431 opts->metadata_only = TRUE;
3432 } else if (str_begins_with (arg, "bind-to-runtime-version")) {
3433 opts->bind_to_runtime_version = TRUE;
3434 } else if (str_begins_with (arg, "full")) {
3435 opts->full_aot = TRUE;
3436 } else if (str_begins_with (arg, "threads=")) {
3437 opts->nthreads = atoi (arg + strlen ("threads="));
3438 } else if (str_begins_with (arg, "static")) {
3439 opts->static_link = TRUE;
3440 opts->no_dlsym = TRUE;
3441 } else if (str_begins_with (arg, "asmonly")) {
3442 opts->asm_only = TRUE;
3443 } else if (str_begins_with (arg, "asmwriter")) {
3444 opts->asm_writer = TRUE;
3445 } else if (str_begins_with (arg, "nodebug")) {
3446 opts->nodebug = TRUE;
3447 } else if (str_begins_with (arg, "ntrampolines=")) {
3448 opts->ntrampolines = atoi (arg + strlen ("ntrampolines="));
3449 } else if (str_begins_with (arg, "tool-prefix=")) {
3450 opts->tool_prefix = g_strdup (arg + strlen ("tool-prefix="));
3452 fprintf (stderr, "AOT : Unknown argument '%s'.\n", arg);
3461 add_token_info_hash (gpointer key, gpointer value, gpointer user_data)
3463 MonoMethod *method = (MonoMethod*)key;
3464 MonoJumpInfoToken *ji = (MonoJumpInfoToken*)value;
3465 MonoJumpInfoToken *new_ji = g_new0 (MonoJumpInfoToken, 1);
3466 MonoAotCompile *acfg = user_data;
3468 new_ji->image = ji->image;
3469 new_ji->token = ji->token;
3470 g_hash_table_insert (acfg->token_info_hash, method, new_ji);
3474 can_encode_class (MonoAotCompile *acfg, MonoClass *klass)
3476 if (klass->type_token)
3478 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
3481 return can_encode_class (acfg, klass->element_class);
3486 can_encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
3488 switch (patch_info->type) {
3489 case MONO_PATCH_INFO_METHOD:
3490 case MONO_PATCH_INFO_METHODCONST: {
3491 MonoMethod *method = patch_info->data.method;
3493 if (method->wrapper_type) {
3494 switch (method->wrapper_type) {
3495 case MONO_WRAPPER_NONE:
3496 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
3497 case MONO_WRAPPER_XDOMAIN_INVOKE:
3498 case MONO_WRAPPER_STFLD:
3499 case MONO_WRAPPER_LDFLD:
3500 case MONO_WRAPPER_LDFLDA:
3501 case MONO_WRAPPER_LDFLD_REMOTE:
3502 case MONO_WRAPPER_STFLD_REMOTE:
3503 case MONO_WRAPPER_STELEMREF:
3504 case MONO_WRAPPER_ISINST:
3505 case MONO_WRAPPER_PROXY_ISINST:
3506 case MONO_WRAPPER_ALLOC:
3507 case MONO_WRAPPER_REMOTING_INVOKE:
3508 case MONO_WRAPPER_UNKNOWN:
3511 //printf ("Skip (wrapper call): %d -> %s\n", patch_info->type, mono_method_full_name (patch_info->data.method, TRUE));
3515 if (!method->token) {
3516 /* The method is part of a constructed type like Int[,].Set (). */
3517 if (!g_hash_table_lookup (acfg->token_info_hash, method)) {
3518 if (method->klass->rank)
3526 case MONO_PATCH_INFO_VTABLE:
3527 case MONO_PATCH_INFO_CLASS_INIT:
3528 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3529 case MONO_PATCH_INFO_CLASS:
3530 case MONO_PATCH_INFO_IID:
3531 case MONO_PATCH_INFO_ADJUSTED_IID:
3532 if (!can_encode_class (acfg, patch_info->data.klass)) {
3533 //printf ("Skip: %s\n", mono_type_full_name (&patch_info->data.klass->byval_arg));
3537 case MONO_PATCH_INFO_RGCTX_FETCH: {
3538 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
3540 if (!can_encode_patch (acfg, entry->data))
3552 add_generic_class (MonoAotCompile *acfg, MonoClass *klass);
3557 * AOT compile a given method.
3558 * This function might be called by multiple threads, so it must be thread-safe.
3561 compile_method (MonoAotCompile *acfg, MonoMethod *method)
3564 MonoJumpInfo *patch_info;
3567 MonoMethod *wrapped;
3569 if (acfg->aot_opts.metadata_only)
3572 mono_acfg_lock (acfg);
3573 index = get_method_index (acfg, method);
3574 mono_acfg_unlock (acfg);
3576 /* fixme: maybe we can also precompile wrapper methods */
3577 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
3578 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
3579 (method->flags & METHOD_ATTRIBUTE_ABSTRACT)) {
3580 //printf ("Skip (impossible): %s\n", mono_method_full_name (method, TRUE));
3584 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
3587 wrapped = mono_marshal_method_from_wrapper (method);
3588 if (wrapped && (wrapped->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && wrapped->is_generic)
3589 // FIXME: The wrapper should be generic too, but it is not
3592 InterlockedIncrement (&acfg->stats.mcount);
3595 if (method->is_generic || method->klass->generic_container) {
3596 InterlockedIncrement (&acfg->stats.genericcount);
3601 //acfg->aot_opts.print_skipped_methods = TRUE;
3604 * Since these methods are the only ones which are compiled with
3605 * AOT support, and they are not used by runtime startup/shutdown code,
3606 * the runtime will not see AOT methods during AOT compilation,so it
3607 * does not need to support them by creating a fake GOT etc.
3609 cfg = mini_method_compile (method, acfg->opts, mono_get_root_domain (), FALSE, TRUE, 0);
3610 if (cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
3611 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3612 InterlockedIncrement (&acfg->stats.genericcount);
3615 if (cfg->exception_type != MONO_EXCEPTION_NONE) {
3616 /* Let the exception happen at runtime */
3620 if (cfg->disable_aot) {
3621 if (acfg->aot_opts.print_skipped_methods)
3622 printf ("Skip (disabled): %s\n", mono_method_full_name (method, TRUE));
3623 InterlockedIncrement (&acfg->stats.ocount);
3624 mono_destroy_compile (cfg);
3628 /* Nullify patches which need no aot processing */
3629 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3630 switch (patch_info->type) {
3631 case MONO_PATCH_INFO_LABEL:
3632 case MONO_PATCH_INFO_BB:
3633 patch_info->type = MONO_PATCH_INFO_NONE;
3640 /* Collect method->token associations from the cfg */
3641 mono_acfg_lock (acfg);
3642 g_hash_table_foreach (cfg->token_info_hash, add_token_info_hash, acfg);
3643 mono_acfg_unlock (acfg);
3646 * Check for absolute addresses.
3649 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3650 switch (patch_info->type) {
3651 case MONO_PATCH_INFO_ABS:
3652 /* unable to handle this */
3661 if (acfg->aot_opts.print_skipped_methods)
3662 printf ("Skip (abs call): %s\n", mono_method_full_name (method, TRUE));
3663 InterlockedIncrement (&acfg->stats.abscount);
3664 mono_destroy_compile (cfg);
3668 /* Lock for the rest of the code */
3669 mono_acfg_lock (acfg);
3672 * Check for methods/klasses we can't encode.
3675 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3676 if (!can_encode_patch (acfg, patch_info))
3681 if (acfg->aot_opts.print_skipped_methods)
3682 printf ("Skip (patches): %s\n", mono_method_full_name (method, TRUE));
3683 acfg->stats.ocount++;
3684 mono_destroy_compile (cfg);
3685 mono_acfg_unlock (acfg);
3689 /* Adds generic instances referenced by this method */
3690 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3691 switch (patch_info->type) {
3692 case MONO_PATCH_INFO_METHOD: {
3693 MonoMethod *m = patch_info->data.method;
3694 if (m->is_inflated) {
3695 if (!(mono_class_generic_sharing_enabled (m->klass) &&
3696 mono_method_is_generic_sharable_impl (m, FALSE)) &&
3697 !method_has_type_vars (m)) {
3698 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
3699 if (acfg->aot_opts.full_aot)
3700 add_extra_method (acfg, mono_marshal_get_native_wrapper (m, TRUE, TRUE));
3702 add_extra_method (acfg, m);
3705 add_generic_class (acfg, m->klass);
3709 case MONO_PATCH_INFO_VTABLE: {
3710 MonoClass *klass = patch_info->data.klass;
3712 if (klass->generic_class && !mono_generic_context_is_sharable (&klass->generic_class->context, FALSE))
3713 add_generic_class (acfg, klass);
3721 /* Determine whenever the method has GOT slots */
3722 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3723 switch (patch_info->type) {
3724 case MONO_PATCH_INFO_GOT_OFFSET:
3725 case MONO_PATCH_INFO_NONE:
3727 case MONO_PATCH_INFO_IMAGE:
3728 /* The assembly is stored in GOT slot 0 */
3729 if (patch_info->data.image != acfg->image)
3730 cfg->has_got_slots = TRUE;
3733 if (!is_plt_patch (patch_info))
3734 cfg->has_got_slots = TRUE;
3739 if (!cfg->has_got_slots)
3740 InterlockedIncrement (&acfg->stats.methods_without_got_slots);
3742 /* Make a copy of the patch info which is in the mempool */
3744 MonoJumpInfo *patches = NULL, *patches_end = NULL;
3746 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3747 MonoJumpInfo *new_patch_info = mono_patch_info_dup_mp (acfg->mempool, patch_info);
3750 patches = new_patch_info;
3752 patches_end->next = new_patch_info;
3753 patches_end = new_patch_info;
3755 cfg->patch_info = patches;
3757 /* Make a copy of the unwind info */
3759 GSList *l, *unwind_ops;
3763 for (l = cfg->unwind_ops; l; l = l->next) {
3764 op = mono_mempool_alloc (acfg->mempool, sizeof (MonoUnwindOp));
3765 memcpy (op, l->data, sizeof (MonoUnwindOp));
3766 unwind_ops = g_slist_prepend_mempool (acfg->mempool, unwind_ops, op);
3768 cfg->unwind_ops = g_slist_reverse (unwind_ops);
3770 /* Make a copy of the argument/local info */
3772 MonoInst **args, **locals;
3773 MonoMethodSignature *sig;
3774 MonoMethodHeader *header;
3777 sig = mono_method_signature (method);
3778 args = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * (sig->param_count + sig->hasthis));
3779 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
3780 args [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
3781 memcpy (args [i], cfg->args [i], sizeof (MonoInst));
3785 header = mono_method_get_header (method);
3786 locals = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * header->num_locals);
3787 for (i = 0; i < header->num_locals; ++i) {
3788 locals [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
3789 memcpy (locals [i], cfg->locals [i], sizeof (MonoInst));
3791 cfg->locals = locals;
3794 /* Free some fields used by cfg to conserve memory */
3795 mono_mempool_destroy (cfg->mempool);
3796 cfg->mempool = NULL;
3797 g_free (cfg->varinfo);
3798 cfg->varinfo = NULL;
3802 mono_regstate_free (cfg->rs);
3806 //printf ("Compile: %s\n", mono_method_full_name (method, TRUE));
3808 while (index >= acfg->cfgs_size) {
3809 MonoCompile **new_cfgs;
3812 new_size = acfg->cfgs_size * 2;
3813 new_cfgs = g_new0 (MonoCompile*, new_size);
3814 memcpy (new_cfgs, acfg->cfgs, sizeof (MonoCompile*) * acfg->cfgs_size);
3815 g_free (acfg->cfgs);
3816 acfg->cfgs = new_cfgs;
3817 acfg->cfgs_size = new_size;
3819 acfg->cfgs [index] = cfg;
3821 g_hash_table_insert (acfg->method_to_cfg, cfg->orig_method, cfg);
3824 if (cfg->orig_method->wrapper_type)
3825 g_ptr_array_add (acfg->extra_methods, cfg->orig_method);
3828 mono_acfg_unlock (acfg);
3830 InterlockedIncrement (&acfg->stats.ccount);
3834 compile_thread_main (gpointer *user_data)
3836 MonoDomain *domain = user_data [0];
3837 MonoAotCompile *acfg = user_data [1];
3838 GPtrArray *methods = user_data [2];
3841 mono_thread_attach (domain);
3843 for (i = 0; i < methods->len; ++i)
3844 compile_method (acfg, g_ptr_array_index (methods, i));
3848 load_profile_files (MonoAotCompile *acfg)
3852 int file_index, res, method_index, i;
3859 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);
3861 if (!g_file_test (tmp, G_FILE_TEST_IS_REGULAR)) {
3866 infile = fopen (tmp, "r");
3869 printf ("Using profile data file '%s'\n", tmp);
3874 res = fscanf (infile, "%32s\n", ver);
3875 if ((res != 1) || strcmp (ver, "#VER:1") != 0) {
3876 printf ("Profile file has wrong version or invalid.\n");
3882 res = fscanf (infile, "%d\n", &token);
3886 method_index = mono_metadata_token_index (token) - 1;
3888 if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (method_index)))
3889 acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (method_index));
3894 /* Add missing methods */
3896 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
3897 if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (i)))
3898 unordered = g_list_prepend (unordered, GUINT_TO_POINTER (i));
3900 unordered = g_list_reverse (unordered);
3901 if (acfg->method_order)
3902 g_list_last (acfg->method_order)->next = unordered;
3904 acfg->method_order = unordered;
3908 emit_code (MonoAotCompile *acfg)
3914 #if defined(TARGET_POWERPC64)
3915 sprintf (symbol, ".Lgot_addr");
3916 emit_section_change (acfg, ".text", 0);
3917 emit_alignment (acfg, 8);
3918 emit_label (acfg, symbol);
3919 emit_pointer (acfg, acfg->got_symbol);
3922 sprintf (symbol, "methods");
3923 emit_section_change (acfg, ".text", 0);
3924 emit_global (acfg, symbol, TRUE);
3925 emit_alignment (acfg, 8);
3926 emit_label (acfg, symbol);
3929 * Emit some padding so the local symbol for the first method doesn't have the
3930 * same address as 'methods'.
3932 emit_zero_bytes (acfg, 16);
3934 for (l = acfg->method_order; l != NULL; l = l->next) {
3935 i = GPOINTER_TO_UINT (l->data);
3938 emit_method_code (acfg, acfg->cfgs [i]);
3941 sprintf (symbol, "methods_end");
3942 emit_section_change (acfg, ".text", 0);
3943 emit_global (acfg, symbol, FALSE);
3944 emit_alignment (acfg, 8);
3945 emit_label (acfg, symbol);
3947 sprintf (symbol, "method_offsets");
3948 emit_section_change (acfg, ".text", 1);
3949 emit_global (acfg, symbol, FALSE);
3950 emit_alignment (acfg, 8);
3951 emit_label (acfg, symbol);
3953 for (i = 0; i < acfg->nmethods; ++i) {
3954 if (acfg->cfgs [i]) {
3955 sprintf (symbol, "%sm_%x", acfg->temp_prefix, i);
3956 emit_symbol_diff (acfg, symbol, "methods", 0);
3958 emit_int32 (acfg, 0xffffffff);
3965 emit_info (MonoAotCompile *acfg)
3971 /* Emit method info */
3972 sprintf (symbol, "method_info");
3973 emit_section_change (acfg, ".text", 1);
3974 emit_global (acfg, symbol, FALSE);
3975 emit_alignment (acfg, 8);
3976 emit_label (acfg, symbol);
3978 /* To reduce size of generated assembly code */
3979 sprintf (symbol, "mi");
3980 emit_label (acfg, symbol);
3982 for (l = acfg->method_order; l != NULL; l = l->next) {
3983 i = GPOINTER_TO_UINT (l->data);
3986 emit_method_info (acfg, acfg->cfgs [i]);
3989 sprintf (symbol, "method_info_offsets");
3990 emit_section_change (acfg, ".text", 1);
3991 emit_global (acfg, symbol, FALSE);
3992 emit_alignment (acfg, 8);
3993 emit_label (acfg, symbol);
3995 for (i = 0; i < acfg->nmethods; ++i) {
3996 if (acfg->cfgs [i]) {
3997 sprintf (symbol, "%sm_%x_p", acfg->temp_prefix, i);
3998 emit_symbol_diff (acfg, symbol, "mi", 0);
4000 emit_int32 (acfg, 0);
4006 #endif /* #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT) */
4009 * mono_aot_str_hash:
4011 * Hash function for strings which we use to hash strings for things which are
4012 * saved in the AOT image, since g_str_hash () can change.
4015 mono_aot_str_hash (gconstpointer v1)
4017 /* Same as g_str_hash () in glib */
4018 char *p = (char *) v1;
4023 hash = (hash << 5) - hash + *p;
4029 #define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
4030 #define mix(a,b,c) { \
4031 a -= c; a ^= rot(c, 4); c += b; \
4032 b -= a; b ^= rot(a, 6); a += c; \
4033 c -= b; c ^= rot(b, 8); b += a; \
4034 a -= c; a ^= rot(c,16); c += b; \
4035 b -= a; b ^= rot(a,19); a += c; \
4036 c -= b; c ^= rot(b, 4); b += a; \
4038 #define final(a,b,c) { \
4039 c ^= b; c -= rot(b,14); \
4040 a ^= c; a -= rot(c,11); \
4041 b ^= a; b -= rot(a,25); \
4042 c ^= b; c -= rot(b,16); \
4043 a ^= c; a -= rot(c,4); \
4044 b ^= a; b -= rot(a,14); \
4045 c ^= b; c -= rot(b,24); \
4049 mono_aot_type_hash (MonoType *t1)
4051 guint hash = t1->type;
4053 hash |= t1->byref << 6; /* do not collide with t1->type values */
4055 case MONO_TYPE_VALUETYPE:
4056 case MONO_TYPE_CLASS:
4057 case MONO_TYPE_SZARRAY:
4058 /* check if the distribution is good enough */
4059 return ((hash << 5) - hash) ^ mono_aot_str_hash (t1->data.klass->name);
4061 return ((hash << 5) - hash) ^ mono_aot_type_hash (t1->data.type);
4062 case MONO_TYPE_ARRAY:
4063 return ((hash << 5) - hash) ^ mono_aot_type_hash (&t1->data.array->eklass->byval_arg);
4064 case MONO_TYPE_GENERICINST:
4065 return ((hash << 5) - hash) ^ 0;
4071 * mono_aot_method_hash:
4073 * Return a hash code for methods which only depends on metadata.
4076 mono_aot_method_hash (MonoMethod *method)
4078 MonoMethodSignature *sig;
4082 guint32 *hashes_start, *hashes;
4085 /* Similar to the hash in mono_method_get_imt_slot () */
4087 sig = mono_method_signature (method);
4089 hashes_count = sig->param_count + 5;
4090 hashes_start = malloc (hashes_count * sizeof (guint32));
4091 hashes = hashes_start;
4093 /* Some wrappers are assigned to random classes */
4094 if (!method->wrapper_type || method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4095 klass = method->klass;
4097 klass = mono_defaults.object_class;
4099 if (!method->wrapper_type) {
4100 char *full_name = mono_type_full_name (&klass->byval_arg);
4102 hashes [0] = mono_aot_str_hash (full_name);
4106 hashes [0] = mono_aot_str_hash (klass->name);
4107 hashes [1] = mono_aot_str_hash (klass->name_space);
4109 hashes [2] = mono_aot_str_hash (method->name);
4110 hashes [3] = method->wrapper_type;
4111 hashes [4] = mono_aot_type_hash (sig->ret);
4112 for (i = 0; i < sig->param_count; i++) {
4113 hashes [5 + i] = mono_aot_type_hash (sig->params [i]);
4116 /* Setup internal state */
4117 a = b = c = 0xdeadbeef + (((guint32)hashes_count)<<2);
4119 /* Handle most of the hashes */
4120 while (hashes_count > 3) {
4129 /* Handle the last 3 hashes (all the case statements fall through) */
4130 switch (hashes_count) {
4131 case 3 : c += hashes [2];
4132 case 2 : b += hashes [1];
4133 case 1 : a += hashes [0];
4135 case 0: /* nothing left to add */
4139 free (hashes_start);
4148 * mono_aot_wrapper_name:
4150 * Return a string which uniqely identifies the given wrapper method.
4153 mono_aot_wrapper_name (MonoMethod *method)
4155 char *name, *tmpsig, *klass_desc;
4157 tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
4159 switch (method->wrapper_type) {
4160 case MONO_WRAPPER_RUNTIME_INVOKE:
4161 case MONO_WRAPPER_DELEGATE_INVOKE:
4162 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
4163 case MONO_WRAPPER_DELEGATE_END_INVOKE:
4164 /* This is a hack to work around the fact that runtime invoke wrappers get assigned to some random class */
4165 name = g_strdup_printf ("%s (%s)", method->name, tmpsig);
4168 klass_desc = mono_type_full_name (&method->klass->byval_arg);
4170 name = g_strdup_printf ("%s:%s (%s)", klass_desc, method->name, tmpsig);
4180 * mono_aot_tramp_info_create:
4182 * Create a MonoAotTrampInfo structure from the arguments.
4185 mono_aot_tramp_info_create (const char *name, guint8 *code, guint32 code_size)
4187 MonoAotTrampInfo *info = g_new0 (MonoAotTrampInfo, 1);
4189 info->name = (char*)name;
4191 info->code_size = code_size;
4196 #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
4198 typedef struct HashEntry {
4199 guint32 key, value, index;
4200 struct HashEntry *next;
4204 * emit_extra_methods:
4206 * Emit methods which are not in the METHOD table, like wrappers.
4209 emit_extra_methods (MonoAotCompile *acfg)
4211 int i, table_size, buf_size;
4214 guint32 *info_offsets;
4217 HashEntry *entry, *new_entry;
4218 int nmethods, max_chain_length;
4221 info_offsets = g_new0 (guint32, acfg->extra_methods->len);
4223 buf_size = acfg->extra_methods->len * 256 + 256;
4224 p = buf = g_malloc (buf_size);
4226 /* Encode method info */
4228 /* So offsets are > 0 */
4231 for (i = 0; i < acfg->extra_methods->len; ++i) {
4232 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
4233 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
4240 info_offsets [i] = p - buf;
4243 if (method->wrapper_type) {
4245 * We encode some wrappers using their name, since encoding them
4246 * directly would be difficult. This also avoids creating the wrapper
4247 * methods at runtime, since they are not needed anyway.
4249 switch (method->wrapper_type) {
4250 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
4251 case MONO_WRAPPER_SYNCHRONIZED:
4252 /* encode_method_ref () can handle these */
4254 case MONO_WRAPPER_RUNTIME_INVOKE:
4255 if (mono_marshal_method_from_wrapper (method) != method && !strstr (method->name, "virtual"))
4256 /* Direct wrapper, encode normally */
4260 name = mono_aot_wrapper_name (method);
4266 encode_value (1, p, &p);
4267 encode_value (method->wrapper_type, p, &p);
4268 strcpy ((char*)p, name);
4269 p += strlen (name ) + 1;
4272 encode_value (0, p, &p);
4273 encode_method_ref (acfg, method, p, &p);
4276 g_assert ((p - buf) < buf_size);
4279 g_assert ((p - buf) < buf_size);
4281 /* Emit method info */
4282 sprintf (symbol, "extra_method_info");
4283 emit_section_change (acfg, ".text", 1);
4284 emit_global (acfg, symbol, FALSE);
4285 emit_alignment (acfg, 8);
4286 emit_label (acfg, symbol);
4288 emit_bytes (acfg, buf, p - buf);
4293 * Construct a chained hash table for mapping indexes in extra_method_info to
4296 table_size = g_spaced_primes_closest ((int)(nmethods * 1.5));
4297 table = g_ptr_array_sized_new (table_size);
4298 for (i = 0; i < table_size; ++i)
4299 g_ptr_array_add (table, NULL);
4300 chain_lengths = g_new0 (int, table_size);
4301 max_chain_length = 0;
4302 for (i = 0; i < acfg->extra_methods->len; ++i) {
4303 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
4304 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
4310 key = info_offsets [i];
4311 value = get_method_index (acfg, method);
4313 hash = mono_aot_method_hash (method) % table_size;
4315 chain_lengths [hash] ++;
4316 max_chain_length = MAX (max_chain_length, chain_lengths [hash]);
4318 /* FIXME: Allocate from the mempool */
4319 new_entry = g_new0 (HashEntry, 1);
4320 new_entry->key = key;
4321 new_entry->value = value;
4323 entry = g_ptr_array_index (table, hash);
4324 if (entry == NULL) {
4325 new_entry->index = hash;
4326 g_ptr_array_index (table, hash) = new_entry;
4329 entry = entry->next;
4331 entry->next = new_entry;
4332 new_entry->index = table->len;
4333 g_ptr_array_add (table, new_entry);
4337 //printf ("MAX: %d\n", max_chain_length);
4339 /* Emit the table */
4340 sprintf (symbol, "extra_method_table");
4341 emit_section_change (acfg, ".text", 0);
4342 emit_global (acfg, symbol, FALSE);
4343 emit_alignment (acfg, 8);
4344 emit_label (acfg, symbol);
4346 g_assert (table_size < 65000);
4347 emit_int32 (acfg, table_size);
4348 g_assert (table->len < 65000);
4349 for (i = 0; i < table->len; ++i) {
4350 HashEntry *entry = g_ptr_array_index (table, i);
4352 if (entry == NULL) {
4353 emit_int32 (acfg, 0);
4354 emit_int32 (acfg, 0);
4355 emit_int32 (acfg, 0);
4357 g_assert (entry->key > 0);
4358 emit_int32 (acfg, entry->key);
4359 emit_int32 (acfg, entry->value);
4361 emit_int32 (acfg, entry->next->index);
4363 emit_int32 (acfg, 0);
4368 * Emit a table reverse mapping method indexes to their index in extra_method_info.
4369 * This is used by mono_aot_find_jit_info ().
4371 sprintf (symbol, "extra_method_info_offsets");
4372 emit_section_change (acfg, ".text", 0);
4373 emit_global (acfg, symbol, FALSE);
4374 emit_alignment (acfg, 8);
4375 emit_label (acfg, symbol);
4377 emit_int32 (acfg, acfg->extra_methods->len);
4378 for (i = 0; i < acfg->extra_methods->len; ++i) {
4379 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
4381 emit_int32 (acfg, get_method_index (acfg, method));
4382 emit_int32 (acfg, info_offsets [i]);
4387 emit_method_order (MonoAotCompile *acfg)
4393 sprintf (symbol, "method_order");
4394 emit_section_change (acfg, ".text", 1);
4395 emit_global (acfg, symbol, FALSE);
4396 emit_alignment (acfg, 8);
4397 emit_label (acfg, symbol);
4399 /* First emit an index table */
4402 for (l = acfg->method_order; l != NULL; l = l->next) {
4403 i = GPOINTER_TO_UINT (l->data);
4405 if (acfg->cfgs [i]) {
4406 if ((index % 1024) == 0) {
4407 emit_int32 (acfg, i);
4415 emit_int32 (acfg, 0xffffff);
4417 /* Then emit the whole method order */
4418 for (l = acfg->method_order; l != NULL; l = l->next) {
4419 i = GPOINTER_TO_UINT (l->data);
4421 if (acfg->cfgs [i]) {
4422 emit_int32 (acfg, i);
4427 sprintf (symbol, "method_order_end");
4428 emit_section_change (acfg, ".text", 1);
4429 emit_global (acfg, symbol, FALSE);
4430 emit_label (acfg, symbol);
4434 emit_exception_info (MonoAotCompile *acfg)
4439 sprintf (symbol, "ex_info");
4440 emit_section_change (acfg, ".text", 1);
4441 emit_global (acfg, symbol, FALSE);
4442 emit_alignment (acfg, 8);
4443 emit_label (acfg, symbol);
4445 /* To reduce size of generated assembly */
4446 sprintf (symbol, "ex");
4447 emit_label (acfg, symbol);
4449 for (i = 0; i < acfg->nmethods; ++i) {
4451 emit_exception_debug_info (acfg, acfg->cfgs [i]);
4454 sprintf (symbol, "ex_info_offsets");
4455 emit_section_change (acfg, ".text", 1);
4456 emit_global (acfg, symbol, FALSE);
4457 emit_alignment (acfg, 8);
4458 emit_label (acfg, symbol);
4460 for (i = 0; i < acfg->nmethods; ++i) {
4461 if (acfg->cfgs [i]) {
4462 sprintf (symbol, "%se_%x_p", acfg->temp_prefix, i);
4463 emit_symbol_diff (acfg, symbol, "ex", 0);
4465 emit_int32 (acfg, 0);
4472 emit_unwind_info (MonoAotCompile *acfg)
4478 * The unwind info contains a lot of duplicates so we emit each unique
4479 * entry once, and only store the offset from the start of the table in the
4483 sprintf (symbol, "unwind_info");
4484 emit_section_change (acfg, ".text", 1);
4485 emit_alignment (acfg, 8);
4486 emit_label (acfg, symbol);
4487 emit_global (acfg, symbol, FALSE);
4489 for (i = 0; i < acfg->unwind_ops->len; ++i) {
4490 guint32 index = GPOINTER_TO_UINT (g_ptr_array_index (acfg->unwind_ops, i));
4491 guint8 *unwind_info;
4492 guint32 unwind_info_len;
4496 unwind_info = mono_get_cached_unwind_info (index, &unwind_info_len);
4499 encode_value (unwind_info_len, p, &p);
4500 emit_bytes (acfg, buf, p - buf);
4501 emit_bytes (acfg, unwind_info, unwind_info_len);
4503 acfg->stats.unwind_info_size += (p - buf) + unwind_info_len;
4508 emit_class_info (MonoAotCompile *acfg)
4513 sprintf (symbol, "class_info");
4514 emit_section_change (acfg, ".text", 1);
4515 emit_global (acfg, symbol, FALSE);
4516 emit_alignment (acfg, 8);
4517 emit_label (acfg, symbol);
4519 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i)
4520 emit_klass_info (acfg, MONO_TOKEN_TYPE_DEF | (i + 1));
4522 sprintf (symbol, "class_info_offsets");
4523 emit_section_change (acfg, ".text", 1);
4524 emit_global (acfg, symbol, FALSE);
4525 emit_alignment (acfg, 8);
4526 emit_label (acfg, symbol);
4528 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
4529 sprintf (symbol, "%sK_I_%x", acfg->temp_prefix, i);
4530 emit_symbol_diff (acfg, symbol, "class_info", 0);
4535 typedef struct ClassNameTableEntry {
4536 guint32 token, index;
4537 struct ClassNameTableEntry *next;
4538 } ClassNameTableEntry;
4541 emit_class_name_table (MonoAotCompile *acfg)
4544 guint32 token, hash;
4549 ClassNameTableEntry *entry, *new_entry;
4552 * Construct a chained hash table for mapping class names to typedef tokens.
4554 table_size = g_spaced_primes_closest ((int)(acfg->image->tables [MONO_TABLE_TYPEDEF].rows * 1.5));
4555 table = g_ptr_array_sized_new (table_size);
4556 for (i = 0; i < table_size; ++i)
4557 g_ptr_array_add (table, NULL);
4558 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
4559 token = MONO_TOKEN_TYPE_DEF | (i + 1);
4560 klass = mono_class_get (acfg->image, token);
4561 full_name = mono_type_get_name_full (mono_class_get_type (klass), MONO_TYPE_NAME_FORMAT_FULL_NAME);
4562 hash = mono_aot_str_hash (full_name) % table_size;
4565 /* FIXME: Allocate from the mempool */
4566 new_entry = g_new0 (ClassNameTableEntry, 1);
4567 new_entry->token = token;
4569 entry = g_ptr_array_index (table, hash);
4570 if (entry == NULL) {
4571 new_entry->index = hash;
4572 g_ptr_array_index (table, hash) = new_entry;
4575 entry = entry->next;
4577 entry->next = new_entry;
4578 new_entry->index = table->len;
4579 g_ptr_array_add (table, new_entry);
4583 /* Emit the table */
4584 sprintf (symbol, "class_name_table");
4585 emit_section_change (acfg, ".text", 0);
4586 emit_global (acfg, symbol, FALSE);
4587 emit_alignment (acfg, 8);
4588 emit_label (acfg, symbol);
4590 /* FIXME: Optimize memory usage */
4591 g_assert (table_size < 65000);
4592 emit_int16 (acfg, table_size);
4593 g_assert (table->len < 65000);
4594 for (i = 0; i < table->len; ++i) {
4595 ClassNameTableEntry *entry = g_ptr_array_index (table, i);
4597 if (entry == NULL) {
4598 emit_int16 (acfg, 0);
4599 emit_int16 (acfg, 0);
4601 emit_int16 (acfg, mono_metadata_token_index (entry->token));
4603 emit_int16 (acfg, entry->next->index);
4605 emit_int16 (acfg, 0);
4611 emit_image_table (MonoAotCompile *acfg)
4617 * The image table is small but referenced in a lot of places.
4618 * So we emit it at once, and reference its elements by an index.
4621 sprintf (symbol, "mono_image_table");
4622 emit_section_change (acfg, ".text", 1);
4623 emit_global (acfg, symbol, FALSE);
4624 emit_alignment (acfg, 8);
4625 emit_label (acfg, symbol);
4627 emit_int32 (acfg, acfg->image_table->len);
4628 for (i = 0; i < acfg->image_table->len; i++) {
4629 MonoImage *image = (MonoImage*)g_ptr_array_index (acfg->image_table, i);
4630 MonoAssemblyName *aname = &image->assembly->aname;
4632 /* FIXME: Support multi-module assemblies */
4633 g_assert (image->assembly->image == image);
4635 emit_string (acfg, image->assembly_name);
4636 emit_string (acfg, image->guid);
4637 emit_string (acfg, aname->culture ? aname->culture : "");
4638 emit_string (acfg, (const char*)aname->public_key_token);
4640 emit_alignment (acfg, 8);
4641 emit_int32 (acfg, aname->flags);
4642 emit_int32 (acfg, aname->major);
4643 emit_int32 (acfg, aname->minor);
4644 emit_int32 (acfg, aname->build);
4645 emit_int32 (acfg, aname->revision);
4650 emit_got_info (MonoAotCompile *acfg)
4653 int i, first_plt_got_patch, buf_size;
4655 guint32 *got_info_offsets;
4657 /* Add the patches needed by the PLT to the GOT */
4658 acfg->plt_got_offset_base = acfg->got_offset;
4659 first_plt_got_patch = acfg->got_patches->len;
4660 for (i = 1; i < acfg->plt_offset; ++i) {
4661 MonoJumpInfo *patch_info = g_hash_table_lookup (acfg->plt_offset_to_patch, GUINT_TO_POINTER (i));
4663 g_ptr_array_add (acfg->got_patches, patch_info);
4666 acfg->got_offset += acfg->plt_offset;
4670 * - optimize offsets table.
4671 * - reduce number of exported symbols.
4672 * - emit info for a klass only once.
4673 * - determine when a method uses a GOT slot which is guaranteed to be already
4675 * - clean up and document the code.
4676 * - use String.Empty in class libs.
4679 /* Encode info required to decode shared GOT entries */
4680 buf_size = acfg->got_patches->len * 64;
4681 p = buf = mono_mempool_alloc (acfg->mempool, buf_size);
4682 got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->got_patches->len * sizeof (guint32));
4683 acfg->plt_got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->plt_offset * sizeof (guint32));
4685 if (acfg->plt_offset)
4686 acfg->plt_got_info_offsets [0] = 0;
4687 for (i = 0; i < acfg->got_patches->len; ++i) {
4688 MonoJumpInfo *ji = g_ptr_array_index (acfg->got_patches, i);
4690 got_info_offsets [i] = p - buf;
4691 if (i >= first_plt_got_patch)
4692 acfg->plt_got_info_offsets [i - first_plt_got_patch + 1] = got_info_offsets [i];
4693 encode_value (ji->type, p, &p);
4694 encode_patch (acfg, ji, p, &p);
4697 g_assert (p - buf <= buf_size);
4699 acfg->stats.got_info_size = p - buf;
4701 /* Emit got_info table */
4702 sprintf (symbol, "got_info");
4703 emit_section_change (acfg, ".text", 1);
4704 emit_global (acfg, symbol, FALSE);
4705 emit_alignment (acfg, 8);
4706 emit_label (acfg, symbol);
4708 emit_bytes (acfg, buf, p - buf);
4710 /* Emit got_info_offsets table */
4711 sprintf (symbol, "got_info_offsets");
4712 emit_section_change (acfg, ".text", 1);
4713 emit_global (acfg, symbol, FALSE);
4714 emit_alignment (acfg, 8);
4715 emit_label (acfg, symbol);
4717 /* No need to emit offsets for the got plt entries, the plt embeds them directly */
4718 for (i = 0; i < first_plt_got_patch; ++i)
4719 emit_int32 (acfg, got_info_offsets [i]);
4721 acfg->stats.got_info_offsets_size = acfg->got_patches->len * 4;
4725 emit_got (MonoAotCompile *acfg)
4729 /* Don't make GOT global so accesses to it don't need relocations */
4730 sprintf (symbol, "%s", acfg->got_symbol);
4731 emit_section_change (acfg, ".bss", 0);
4732 emit_alignment (acfg, 8);
4733 emit_local_symbol (acfg, symbol, "got_end", FALSE);
4734 emit_label (acfg, symbol);
4735 if (acfg->got_offset > 0)
4736 emit_zero_bytes (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
4738 sprintf (symbol, "got_end");
4739 emit_label (acfg, symbol);
4741 sprintf (symbol, "mono_aot_got_addr");
4742 emit_section_change (acfg, ".data", 0);
4743 emit_global (acfg, symbol, FALSE);
4744 emit_alignment (acfg, 8);
4745 emit_label (acfg, symbol);
4746 emit_pointer (acfg, acfg->got_symbol);
4750 emit_globals (MonoAotCompile *acfg)
4755 emit_string_symbol (acfg, "mono_assembly_guid" , acfg->image->guid);
4757 emit_string_symbol (acfg, "mono_aot_version", MONO_AOT_FILE_VERSION);
4759 opts_str = g_strdup_printf ("%d", acfg->opts);
4760 emit_string_symbol (acfg, "mono_aot_opt_flags", opts_str);
4763 emit_string_symbol (acfg, "mono_aot_full_aot", acfg->aot_opts.full_aot ? "TRUE" : "FALSE");
4765 if (acfg->aot_opts.bind_to_runtime_version) {
4766 build_info = mono_get_runtime_build_info ();
4767 emit_string_symbol (acfg, "mono_runtime_version", build_info);
4768 g_free (build_info);
4770 emit_string_symbol (acfg, "mono_runtime_version", "");
4774 * When static linking, we emit a global which will point to the symbol table.
4776 if (acfg->aot_opts.static_link) {
4781 /* Emit a string holding the assembly name */
4782 emit_string_symbol (acfg, "mono_aot_assembly_name", acfg->image->assembly->aname.name);
4784 /* Emit the names */
4785 for (i = 0; i < acfg->globals->len; ++i) {
4786 char *name = g_ptr_array_index (acfg->globals, i);
4788 sprintf (symbol, "name_%d", i);
4789 emit_section_change (acfg, ".text", 1);
4790 emit_label (acfg, symbol);
4791 emit_string (acfg, name);
4794 /* Emit the globals table */
4795 sprintf (symbol, "globals");
4796 emit_section_change (acfg, ".data", 0);
4797 /* This is not a global, since it is accessed by the init function */
4798 emit_alignment (acfg, 8);
4799 emit_label (acfg, symbol);
4801 for (i = 0; i < acfg->globals->len; ++i) {
4802 char *name = g_ptr_array_index (acfg->globals, i);
4804 sprintf (symbol, "name_%d", i);
4805 emit_pointer (acfg, symbol);
4807 sprintf (symbol, "%s", name);
4808 emit_pointer (acfg, symbol);
4810 /* Null terminate the table */
4811 emit_int32 (acfg, 0);
4812 emit_int32 (acfg, 0);
4815 * Emit a global symbol which can be passed by an embedding app to
4816 * mono_aot_register_module ().
4818 #if defined(__MACH__)
4819 sprintf (symbol, "_mono_aot_module_%s_info", acfg->image->assembly->aname.name);
4821 sprintf (symbol, "mono_aot_module_%s_info", acfg->image->assembly->aname.name);
4824 /* Get rid of characters which cannot occur in symbols */
4826 for (p = symbol; *p; ++p) {
4827 if (!(isalnum (*p) || *p == '_'))
4830 acfg->static_linking_symbol = g_strdup (symbol);
4831 emit_global_inner (acfg, symbol, FALSE);
4832 emit_alignment (acfg, 8);
4833 emit_label (acfg, symbol);
4834 emit_pointer (acfg, "globals");
4839 emit_mem_end (MonoAotCompile *acfg)
4843 sprintf (symbol, "mem_end");
4844 emit_section_change (acfg, ".text", 1);
4845 emit_global (acfg, symbol, FALSE);
4846 emit_alignment (acfg, 8);
4847 emit_label (acfg, symbol);
4851 * Emit a structure containing all the information not stored elsewhere.
4854 emit_file_info (MonoAotCompile *acfg)
4859 sprintf (symbol, "mono_aot_file_info");
4860 emit_section_change (acfg, ".data", 0);
4861 emit_alignment (acfg, 8);
4862 emit_label (acfg, symbol);
4863 emit_global (acfg, symbol, FALSE);
4865 /* The data emitted here must match MonoAotFileInfo in aot-runtime.c. */
4866 emit_int32 (acfg, acfg->plt_got_offset_base);
4867 emit_int32 (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
4868 emit_int32 (acfg, acfg->plt_offset);
4869 emit_int32 (acfg, acfg->nmethods);
4871 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
4872 emit_int32 (acfg, acfg->num_trampolines [i]);
4873 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
4874 emit_int32 (acfg, acfg->trampoline_got_offset_base [i]);
4875 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
4876 emit_int32 (acfg, acfg->trampoline_size [i]);
4880 emit_dwarf_info (MonoAotCompile *acfg)
4882 #ifdef EMIT_DWARF_INFO
4884 char symbol [128], symbol2 [128];
4886 /* DIEs for methods */
4887 for (i = 0; i < acfg->nmethods; ++i) {
4888 MonoCompile *cfg = acfg->cfgs [i];
4893 sprintf (symbol, "%sm_%x", acfg->temp_prefix, i);
4894 sprintf (symbol2, "%sme_%x", acfg->temp_prefix, i);
4896 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 ()));
4902 collect_methods (MonoAotCompile *acfg)
4905 MonoImage *image = acfg->image;
4907 /* Collect methods */
4908 for (i = 0; i < image->tables [MONO_TABLE_METHOD].rows; ++i) {
4910 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
4912 method = mono_get_method (acfg->image, token, NULL);
4915 printf ("Failed to load method 0x%x from '%s'.\n", token, image->name);
4919 /* Load all methods eagerly to skip the slower lazy loading code */
4920 mono_class_setup_methods (method->klass);
4922 if (acfg->aot_opts.full_aot && method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
4923 /* Compile the wrapper instead */
4924 /* We do this here instead of add_wrappers () because it is easy to do it here */
4925 MonoMethod *wrapper = mono_marshal_get_native_wrapper (method, check_for_pending_exc, TRUE);
4929 /* Since we add the normal methods first, their index will be equal to their zero based token index */
4930 add_method_with_index (acfg, method, i, FALSE);
4931 acfg->method_index ++;
4934 add_generic_instances (acfg);
4936 if (acfg->aot_opts.full_aot)
4937 add_wrappers (acfg);
4941 compile_methods (MonoAotCompile *acfg)
4945 if (acfg->aot_opts.nthreads > 0) {
4950 gpointer *user_data;
4951 MonoMethod **methods;
4953 methods_len = acfg->methods->len;
4955 len = acfg->methods->len / acfg->aot_opts.nthreads;
4958 * Partition the list of methods into fragments, and hand it to threads to
4961 threads = g_ptr_array_new ();
4962 /* Make a copy since acfg->methods is modified by compile_method () */
4963 methods = g_new0 (MonoMethod*, methods_len);
4964 //memcpy (methods, g_ptr_array_index (acfg->methods, 0), sizeof (MonoMethod*) * methods_len);
4965 for (i = 0; i < methods_len; ++i)
4966 methods [i] = g_ptr_array_index (acfg->methods, i);
4968 while (i < methods_len) {
4969 frag = g_ptr_array_new ();
4970 for (j = 0; j < len; ++j) {
4971 if (i < methods_len) {
4972 g_ptr_array_add (frag, methods [i]);
4977 user_data = g_new0 (gpointer, 3);
4978 user_data [0] = mono_domain_get ();
4979 user_data [1] = acfg;
4980 user_data [2] = frag;
4982 handle = mono_create_thread (NULL, 0, (gpointer)compile_thread_main, user_data, 0, NULL);
4983 g_ptr_array_add (threads, handle);
4987 for (i = 0; i < threads->len; ++i) {
4988 WaitForSingleObjectEx (g_ptr_array_index (threads, i), INFINITE, FALSE);
4994 /* Compile methods added by compile_method () or all methods if nthreads == 0 */
4995 for (i = methods_len; i < acfg->methods->len; ++i) {
4996 /* This can new methods to acfg->methods */
4997 compile_method (acfg, g_ptr_array_index (acfg->methods, i));
5002 compile_asm (MonoAotCompile *acfg)
5004 char *command, *objfile;
5005 char *outfile_name, *tmp_outfile_name;
5006 const char *tool_prefix = acfg->aot_opts.tool_prefix ? acfg->aot_opts.tool_prefix : "";
5008 #if defined(TARGET_AMD64)
5009 #define AS_OPTIONS "--64"
5010 #elif defined(TARGET_POWERPC64)
5011 #define AS_OPTIONS "-a64 -mppc64"
5012 #define LD_OPTIONS "-m elf64ppc"
5013 #elif defined(sparc) && SIZEOF_VOID_P == 8
5014 #define AS_OPTIONS "-xarch=v9"
5016 #define AS_OPTIONS ""
5020 #define LD_OPTIONS ""
5023 if (acfg->aot_opts.asm_only) {
5024 printf ("Output file: '%s'.\n", acfg->tmpfname);
5025 if (acfg->aot_opts.static_link)
5026 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
5030 if (acfg->aot_opts.static_link) {
5031 if (acfg->aot_opts.outfile)
5032 objfile = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5034 objfile = g_strdup_printf ("%s.o", acfg->image->name);
5036 objfile = g_strdup_printf ("%s.o", acfg->tmpfname);
5038 command = g_strdup_printf ("%sas %s %s -o %s", tool_prefix, AS_OPTIONS, acfg->tmpfname, objfile);
5039 printf ("Executing the native assembler: %s\n", command);
5040 if (system (command) != 0) {
5048 if (acfg->aot_opts.static_link) {
5049 printf ("Output file: '%s'.\n", objfile);
5050 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
5055 if (acfg->aot_opts.outfile)
5056 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5058 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
5060 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
5063 command = g_strdup_printf ("ld -shared -G -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
5064 #elif defined(__ppc__) && defined(__MACH__)
5065 command = g_strdup_printf ("gcc -dynamiclib -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
5066 #elif defined(PLATFORM_WIN32)
5067 command = g_strdup_printf ("gcc -shared --dll -mno-cygwin -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
5069 command = g_strdup_printf ("%sld %s -shared -o %s %s.o", tool_prefix, LD_OPTIONS, tmp_outfile_name, acfg->tmpfname);
5071 printf ("Executing the native linker: %s\n", command);
5072 if (system (command) != 0) {
5073 g_free (tmp_outfile_name);
5074 g_free (outfile_name);
5082 /*com = g_strdup_printf ("strip --strip-unneeded %s%s", acfg->image->name, SHARED_EXT);
5083 printf ("Stripping the binary: %s\n", com);
5087 #if defined(TARGET_ARM) && !defined(__MACH__)
5089 * gas generates 'mapping symbols' each time code and data is mixed, which
5090 * happens a lot in emit_and_reloc_code (), so we need to get rid of them.
5092 command = g_strdup_printf ("%sstrip --strip-symbol=\\$a --strip-symbol=\\$d %s", tool_prefix, tmp_outfile_name);
5093 printf ("Stripping the binary: %s\n", command);
5094 if (system (command) != 0) {
5095 g_free (tmp_outfile_name);
5096 g_free (outfile_name);
5103 rename (tmp_outfile_name, outfile_name);
5105 g_free (tmp_outfile_name);
5106 g_free (outfile_name);
5109 if (acfg->aot_opts.save_temps)
5110 printf ("Retained input file.\n");
5112 unlink (acfg->tmpfname);
5117 static MonoAotCompile*
5118 acfg_create (MonoAssembly *ass, guint32 opts)
5120 MonoImage *image = ass->image;
5121 MonoAotCompile *acfg;
5123 acfg = g_new0 (MonoAotCompile, 1);
5124 acfg->methods = g_ptr_array_new ();
5125 acfg->method_indexes = g_hash_table_new (NULL, NULL);
5126 acfg->plt_offset_to_patch = g_hash_table_new (NULL, NULL);
5127 acfg->patch_to_plt_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
5128 acfg->patch_to_got_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
5129 acfg->got_patches = g_ptr_array_new ();
5130 acfg->method_to_cfg = g_hash_table_new (NULL, NULL);
5131 acfg->token_info_hash = g_hash_table_new_full (NULL, NULL, NULL, g_free);
5132 acfg->image_hash = g_hash_table_new (NULL, NULL);
5133 acfg->image_table = g_ptr_array_new ();
5134 acfg->globals = g_ptr_array_new ();
5135 acfg->image = image;
5137 acfg->mempool = mono_mempool_new ();
5138 acfg->extra_methods = g_ptr_array_new ();
5139 acfg->unwind_info_offsets = g_hash_table_new (NULL, NULL);
5140 acfg->unwind_ops = g_ptr_array_new ();
5141 acfg->method_label_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
5142 InitializeCriticalSection (&acfg->mutex);
5148 acfg_free (MonoAotCompile *acfg)
5152 img_writer_destroy (acfg->w);
5153 for (i = 0; i < acfg->nmethods; ++i)
5155 g_free (acfg->cfgs [i]);
5156 g_free (acfg->cfgs);
5157 g_free (acfg->static_linking_symbol);
5158 g_free (acfg->got_symbol);
5159 g_free (acfg->plt_symbol);
5160 g_ptr_array_free (acfg->methods, TRUE);
5161 g_ptr_array_free (acfg->got_patches, TRUE);
5162 g_ptr_array_free (acfg->image_table, TRUE);
5163 g_ptr_array_free (acfg->globals, TRUE);
5164 g_ptr_array_free (acfg->unwind_ops, TRUE);
5165 g_hash_table_destroy (acfg->method_indexes);
5166 g_hash_table_destroy (acfg->plt_offset_to_patch);
5167 g_hash_table_destroy (acfg->patch_to_plt_offset);
5168 g_hash_table_destroy (acfg->patch_to_got_offset);
5169 g_hash_table_destroy (acfg->method_to_cfg);
5170 g_hash_table_destroy (acfg->token_info_hash);
5171 g_hash_table_destroy (acfg->image_hash);
5172 g_hash_table_destroy (acfg->unwind_info_offsets);
5173 g_hash_table_destroy (acfg->method_label_hash);
5174 mono_mempool_destroy (acfg->mempool);
5179 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
5181 MonoImage *image = ass->image;
5183 MonoAotCompile *acfg;
5184 char *outfile_name, *tmp_outfile_name, *p;
5188 printf ("Mono Ahead of Time compiler - compiling assembly %s\n", image->name);
5190 acfg = acfg_create (ass, opts);
5192 memset (&acfg->aot_opts, 0, sizeof (acfg->aot_opts));
5193 acfg->aot_opts.write_symbols = TRUE;
5194 acfg->aot_opts.ntrampolines = 1024;
5196 mono_aot_parse_options (aot_options, &acfg->aot_opts);
5198 //acfg->aot_opts.print_skipped_methods = TRUE;
5200 #ifndef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
5201 if (acfg->aot_opts.full_aot) {
5202 printf ("--aot=full is not supported on this platform.\n");
5207 if (acfg->aot_opts.static_link)
5208 acfg->aot_opts.asm_writer = TRUE;
5210 load_profile_files (acfg);
5212 acfg->num_trampolines [MONO_AOT_TRAMP_SPECIFIC] = acfg->aot_opts.full_aot ? acfg->aot_opts.ntrampolines : 0;
5213 #ifdef MONO_ARCH_HAVE_STATIC_RGCTX_TRAMPOLINE
5214 acfg->num_trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = acfg->aot_opts.full_aot ? 1024 : 0;
5216 acfg->num_trampolines [MONO_AOT_TRAMP_IMT_THUNK] = acfg->aot_opts.full_aot ? 128 : 0;
5218 acfg->got_symbol = g_strdup_printf ("mono_aot_%s_got", acfg->image->assembly->aname.name);
5219 acfg->plt_symbol = g_strdup_printf ("mono_aot_%s_plt", acfg->image->assembly->aname.name);
5221 /* Get rid of characters which cannot occur in symbols */
5222 for (p = acfg->got_symbol; *p; ++p) {
5223 if (!(isalnum (*p) || *p == '_'))
5226 for (p = acfg->plt_symbol; *p; ++p) {
5227 if (!(isalnum (*p) || *p == '_'))
5231 acfg->method_index = 1;
5233 collect_methods (acfg);
5235 acfg->cfgs_size = acfg->methods->len + 32;
5236 acfg->cfgs = g_new0 (MonoCompile*, acfg->cfgs_size);
5238 /* PLT offset 0 is reserved for the PLT trampoline */
5239 acfg->plt_offset = 1;
5241 /* GOT offset 0 is reserved for the address of the current assembly */
5245 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
5246 ji->type = MONO_PATCH_INFO_IMAGE;
5247 ji->data.image = acfg->image;
5249 get_got_offset (acfg, ji);
5251 /* Slot 1 is reserved for the mscorlib got addr */
5252 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
5253 ji->type = MONO_PATCH_INFO_MSCORLIB_GOT_ADDR;
5254 get_got_offset (acfg, ji);
5259 compile_methods (acfg);
5263 acfg->stats.jit_time = TV_ELAPSED (atv, btv);
5267 if (!acfg->aot_opts.asm_only && !acfg->aot_opts.asm_writer && bin_writer_supported ()) {
5268 if (acfg->aot_opts.outfile)
5269 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5271 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
5274 * Can't use g_file_open_tmp () as it will be deleted at exit, and
5275 * it might be in another file system so the rename () won't work.
5277 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
5279 acfg->fp = fopen (tmp_outfile_name, "w");
5281 printf ("Unable to create temporary file '%s': %s\n", tmp_outfile_name, strerror (errno));
5285 acfg->w = img_writer_create (acfg->fp, TRUE);
5286 acfg->use_bin_writer = TRUE;
5288 if (acfg->aot_opts.asm_only) {
5289 if (acfg->aot_opts.outfile)
5290 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5292 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
5293 acfg->fp = fopen (acfg->tmpfname, "w+");
5295 int i = g_file_open_tmp ("mono_aot_XXXXXX", &acfg->tmpfname, NULL);
5296 acfg->fp = fdopen (i, "w+");
5298 g_assert (acfg->fp);
5300 acfg->w = img_writer_create (acfg->fp, FALSE);
5302 tmp_outfile_name = NULL;
5303 outfile_name = NULL;
5306 acfg->temp_prefix = img_writer_get_temp_label_prefix (acfg->w);
5308 if (!acfg->aot_opts.nodebug)
5309 acfg->dwarf = mono_dwarf_writer_create (acfg->w, NULL, FALSE);
5311 img_writer_emit_start (acfg->w);
5314 mono_dwarf_writer_emit_base_info (acfg->dwarf, arch_get_cie_program ());
5320 emit_extra_methods (acfg);
5322 emit_method_order (acfg);
5324 emit_trampolines (acfg);
5326 emit_class_name_table (acfg);
5328 emit_got_info (acfg);
5330 emit_exception_info (acfg);
5332 emit_unwind_info (acfg);
5334 emit_class_info (acfg);
5338 emit_image_table (acfg);
5342 emit_file_info (acfg);
5344 emit_globals (acfg);
5347 emit_dwarf_info (acfg);
5348 mono_dwarf_writer_close (acfg->dwarf);
5351 emit_mem_end (acfg);
5355 acfg->stats.gen_time = TV_ELAPSED (atv, btv);
5357 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)));
5360 res = img_writer_emit_writeout (acfg->w);
5365 if (acfg->use_bin_writer) {
5366 int err = rename (tmp_outfile_name, outfile_name);
5369 printf ("Unable to rename '%s' to '%s': %s\n", tmp_outfile_name, outfile_name, strerror (errno));
5373 res = compile_asm (acfg);
5380 acfg->stats.link_time = TV_ELAPSED (atv, btv);
5382 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);
5383 if (acfg->stats.genericcount)
5384 printf ("%d methods are generic (%d%%)\n", acfg->stats.genericcount, acfg->stats.mcount ? (acfg->stats.genericcount * 100) / acfg->stats.mcount : 100);
5385 if (acfg->stats.abscount)
5386 printf ("%d methods contain absolute addresses (%d%%)\n", acfg->stats.abscount, acfg->stats.mcount ? (acfg->stats.abscount * 100) / acfg->stats.mcount : 100);
5387 if (acfg->stats.lmfcount)
5388 printf ("%d methods contain lmf pointers (%d%%)\n", acfg->stats.lmfcount, acfg->stats.mcount ? (acfg->stats.lmfcount * 100) / acfg->stats.mcount : 100);
5389 if (acfg->stats.ocount)
5390 printf ("%d methods have other problems (%d%%)\n", acfg->stats.ocount, acfg->stats.mcount ? (acfg->stats.ocount * 100) / acfg->stats.mcount : 100);
5391 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);
5392 printf ("Direct calls: %d (%d%%)\n", acfg->stats.direct_calls, acfg->stats.all_calls ? (acfg->stats.direct_calls * 100) / acfg->stats.all_calls : 100);
5395 printf ("GOT slot distribution:\n");
5396 for (i = 0; i < MONO_PATCH_INFO_NONE; ++i)
5397 if (acfg->stats.got_slot_types [i])
5398 printf ("\t%s: %d\n", get_patch_name (i), acfg->stats.got_slot_types [i]);
5401 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);
5409 * Support for emitting debug info for JITted code.
5411 * This works as follows:
5412 * - the runtime writes out an xdb.s file containing DWARF debug info.
5413 * - the user calls a gdb macro
5414 * - the macro compiles and loads this shared library using add-symbol-file.
5416 * This is based on the xdebug functionality in the Kaffe Java VM.
5418 * We emit assembly code instead of using the ELF writer, so we can emit debug info
5419 * incrementally as each method is JITted, and the debugger doesn't have to call
5420 * into the runtime to emit the shared library, which would cause all kinds of
5421 * complications, like threading issues, and the fact that the ELF writer's
5422 * emit_writeout () function cannot be called more than once.
5425 /* The recommended gdb macro is: */
5428 shell rm -f xdb.so && as --64 -o xdb.o xdb.s && ld -shared -o xdb.so xdb.o
5429 add-symbol-file xdb.so 0
5433 static MonoDwarfWriter *xdebug_writer;
5434 static FILE *xdebug_fp;
5437 mono_xdebug_init (void)
5443 xdebug_fp = fopen ("xdb.s", "w");
5445 w = img_writer_create (xdebug_fp, FALSE);
5447 img_writer_emit_start (w);
5449 /* This file will contain the IL code for methods which don't have debug info */
5450 il_file = fopen ("xdb.il", "w");
5452 xdebug_writer = mono_dwarf_writer_create (w, il_file, TRUE);
5454 /* Emit something so the file has a text segment */
5455 img_writer_emit_section_change (w, ".text", 0);
5456 img_writer_emit_string (w, "");
5458 mono_dwarf_writer_emit_base_info (xdebug_writer, arch_get_cie_program ());
5462 * mono_save_xdebug_info:
5464 * Emit debugging info for METHOD into an assembly file which can be assembled
5465 * and loaded into gdb to provide debugging info for JITted code.
5466 * LOCKING: Acquires the loader lock.
5469 mono_save_xdebug_info (MonoCompile *cfg)
5474 mono_loader_lock ();
5475 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 ()));
5477 mono_loader_unlock ();
5481 * mono_save_trampoline_xdebug_info:
5483 * Same as mono_save_xdebug_info, but for trampolines.
5484 * LOCKING: Acquires the loader lock.
5487 mono_save_trampoline_xdebug_info (const char *tramp_name, guint8 *code, guint32 code_size, GSList *unwind_info)
5492 mono_loader_lock ();
5493 mono_dwarf_writer_emit_trampoline (xdebug_writer, tramp_name, NULL, NULL, code, code_size, unwind_info);
5495 mono_loader_unlock ();
5503 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
5509 mono_xdebug_init (void)
5514 mono_save_xdebug_info (MonoCompile *cfg)
5519 mono_save_trampoline_xdebug_info (const char *tramp_name, guint8 *code, guint32 code_size, GSList *unwind_info)