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.
25 #include <sys/types.h>
46 #include <mono/metadata/tabledefs.h>
47 #include <mono/metadata/class.h>
48 #include <mono/metadata/object.h>
49 #include <mono/metadata/tokentype.h>
50 #include <mono/metadata/appdomain.h>
51 #include <mono/metadata/debug-helpers.h>
52 #include <mono/metadata/assembly.h>
53 #include <mono/metadata/metadata-internals.h>
54 #include <mono/metadata/marshal.h>
55 #include <mono/metadata/gc-internal.h>
56 #include <mono/metadata/monitor.h>
57 #include <mono/metadata/mempool-internals.h>
58 #include <mono/metadata/mono-endian.h>
59 #include <mono/metadata/threads-types.h>
60 #include <mono/utils/mono-logger.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;
102 int nrgctx_trampolines;
103 gboolean print_skipped_methods;
109 typedef struct MonoAotStats {
110 int ccount, mcount, lmfcount, abscount, gcount, ocount, genericcount;
111 int code_size, info_size, ex_info_size, unwind_info_size, got_size, class_info_size, got_info_size;
112 int methods_without_got_slots, direct_calls, all_calls, llvm_count;
113 int got_slots, offsets_size;
114 int got_slot_types [MONO_PATCH_INFO_NONE];
115 int jit_time, gen_time, link_time;
118 typedef struct MonoAotCompile {
121 GHashTable *method_indexes;
122 GHashTable *method_depth;
125 GHashTable *patch_to_plt_offset;
126 GHashTable *plt_offset_to_patch;
127 GHashTable *patch_to_got_offset;
128 GHashTable **patch_to_got_offset_by_type;
129 GPtrArray *got_patches;
130 GHashTable *image_hash;
131 GHashTable *method_to_cfg;
132 GHashTable *token_info_hash;
133 GPtrArray *extra_methods;
134 GPtrArray *image_table;
137 guint32 *plt_got_info_offsets;
138 guint32 got_offset, plt_offset, plt_got_offset_base;
139 guint32 final_got_size;
140 /* Number of GOT entries reserved for trampolines */
141 guint32 num_trampoline_got_entries;
143 guint32 num_trampolines [MONO_AOT_TRAMP_NUM];
144 guint32 trampoline_got_offset_base [MONO_AOT_TRAMP_NUM];
145 guint32 trampoline_size [MONO_AOT_TRAMP_NUM];
147 MonoAotOptions aot_opts;
150 MonoMemPool *mempool;
153 char *static_linking_symbol;
154 CRITICAL_SECTION mutex;
155 gboolean use_bin_writer;
157 MonoDwarfWriter *dwarf;
161 GHashTable *unwind_info_offsets;
162 GPtrArray *unwind_ops;
163 guint32 unwind_info_offset;
164 char *got_symbol_base;
167 GHashTable *method_label_hash;
168 const char *temp_prefix;
169 const char *llvm_label_prefix;
170 guint32 label_generator;
172 MonoAotFileFlags flags;
173 MonoDynamicStream blob;
176 #define mono_acfg_lock(acfg) EnterCriticalSection (&((acfg)->mutex))
177 #define mono_acfg_unlock(acfg) LeaveCriticalSection (&((acfg)->mutex))
179 /* This points to the current acfg in LLVM mode */
180 static MonoAotCompile *llvm_acfg;
182 #ifdef HAVE_ARRAY_ELEM_INIT
183 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
184 #define MSGSTRFIELD1(line) str##line
185 static const struct msgstr_t {
186 #define PATCH_INFO(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
187 #include "patch-info.h"
190 #define PATCH_INFO(a,b) b,
191 #include "patch-info.h"
194 static const gint16 opidx [] = {
195 #define PATCH_INFO(a,b) [MONO_PATCH_INFO_ ## a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
196 #include "patch-info.h"
200 static G_GNUC_UNUSED const char*
201 get_patch_name (int info)
203 return (const char*)&opstr + opidx [info];
207 #define PATCH_INFO(a,b) b,
208 static const char* const
209 patch_types [MONO_PATCH_INFO_NUM + 1] = {
210 #include "patch-info.h"
214 static G_GNUC_UNUSED const char*
215 get_patch_name (int info)
217 return patch_types [info];
222 /* Wrappers around the image writer functions */
225 emit_section_change (MonoAotCompile *acfg, const char *section_name, int subsection_index)
227 img_writer_emit_section_change (acfg->w, section_name, subsection_index);
231 emit_push_section (MonoAotCompile *acfg, const char *section_name, int subsection)
233 img_writer_emit_push_section (acfg->w, section_name, subsection);
237 emit_pop_section (MonoAotCompile *acfg)
239 img_writer_emit_pop_section (acfg->w);
243 emit_local_symbol (MonoAotCompile *acfg, const char *name, const char *end_label, gboolean func)
245 img_writer_emit_local_symbol (acfg->w, name, end_label, func);
249 emit_label (MonoAotCompile *acfg, const char *name)
251 img_writer_emit_label (acfg->w, name);
255 emit_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
257 img_writer_emit_bytes (acfg->w, buf, size);
261 emit_string (MonoAotCompile *acfg, const char *value)
263 img_writer_emit_string (acfg->w, value);
267 emit_line (MonoAotCompile *acfg)
269 img_writer_emit_line (acfg->w);
273 emit_alignment (MonoAotCompile *acfg, int size)
275 img_writer_emit_alignment (acfg->w, size);
279 emit_pointer_unaligned (MonoAotCompile *acfg, const char *target)
281 img_writer_emit_pointer_unaligned (acfg->w, target);
285 emit_pointer (MonoAotCompile *acfg, const char *target)
287 img_writer_emit_pointer (acfg->w, target);
291 emit_int16 (MonoAotCompile *acfg, int value)
293 img_writer_emit_int16 (acfg->w, value);
297 emit_int32 (MonoAotCompile *acfg, int value)
299 img_writer_emit_int32 (acfg->w, value);
303 emit_symbol_diff (MonoAotCompile *acfg, const char *end, const char* start, int offset)
305 img_writer_emit_symbol_diff (acfg->w, end, start, offset);
309 emit_zero_bytes (MonoAotCompile *acfg, int num)
311 img_writer_emit_zero_bytes (acfg->w, num);
315 emit_byte (MonoAotCompile *acfg, guint8 val)
317 img_writer_emit_byte (acfg->w, val);
320 static G_GNUC_UNUSED void
321 emit_global_inner (MonoAotCompile *acfg, const char *name, gboolean func)
323 img_writer_emit_global (acfg->w, name, func);
327 emit_global (MonoAotCompile *acfg, const char *name, gboolean func)
329 if (acfg->aot_opts.no_dlsym) {
330 g_ptr_array_add (acfg->globals, g_strdup (name));
331 img_writer_emit_local_symbol (acfg->w, name, NULL, func);
333 img_writer_emit_global (acfg->w, name, func);
338 emit_symbol_size (MonoAotCompile *acfg, const char *name, const char *end_label)
340 img_writer_emit_symbol_size (acfg->w, name, end_label);
344 emit_string_symbol (MonoAotCompile *acfg, const char *name, const char *value)
346 img_writer_emit_section_change (acfg->w, ".text", 1);
347 emit_global (acfg, name, FALSE);
348 img_writer_emit_label (acfg->w, name);
349 img_writer_emit_string (acfg->w, value);
352 static G_GNUC_UNUSED void
353 emit_uleb128 (MonoAotCompile *acfg, guint32 value)
356 guint8 b = value & 0x7f;
358 if (value != 0) /* more bytes to come */
364 static G_GNUC_UNUSED void
365 emit_sleb128 (MonoAotCompile *acfg, gint64 value)
368 gboolean negative = (value < 0);
375 /* the following is unnecessary if the
376 * implementation of >>= uses an arithmetic rather
377 * than logical shift for a signed left operand
381 value |= - ((gint64)1 <<(size - 7));
382 /* sign bit of byte is second high order bit (0x40) */
383 if ((value == 0 && !(byte & 0x40)) ||
384 (value == -1 && (byte & 0x40)))
388 emit_byte (acfg, byte);
392 static G_GNUC_UNUSED void
393 encode_uleb128 (guint32 value, guint8 *buf, guint8 **endbuf)
398 guint8 b = value & 0x7f;
400 if (value != 0) /* more bytes to come */
408 static G_GNUC_UNUSED void
409 encode_sleb128 (gint32 value, guint8 *buf, guint8 **endbuf)
412 gboolean negative = (value < 0);
420 /* the following is unnecessary if the
421 * implementation of >>= uses an arithmetic rather
422 * than logical shift for a signed left operand
426 value |= - (1 <<(size - 7));
427 /* sign bit of byte is second high order bit (0x40) */
428 if ((value == 0 && !(byte & 0x40)) ||
429 (value == -1 && (byte & 0x40)))
439 /* ARCHITECTURE SPECIFIC CODE */
441 #if defined(TARGET_X86) || defined(TARGET_AMD64) || defined(TARGET_ARM) || defined(TARGET_POWERPC)
442 #define EMIT_DWARF_INFO 1
445 #if defined(TARGET_ARM)
446 #define AOT_FUNC_ALIGNMENT 4
448 #define AOT_FUNC_ALIGNMENT 16
451 #if defined(TARGET_POWERPC64) && !defined(__mono_ilp32__)
452 #define PPC_LD_OP "ld"
453 #define PPC_LDX_OP "ldx"
455 #define PPC_LD_OP "lwz"
456 #define PPC_LDX_OP "lwzx"
462 #define LLVM_LABEL_PREFIX "_"
464 #define LLVM_LABEL_PREFIX ""
469 #define LLC_TARGET_ARGS "-march=arm -mattr=+v6 -mtriple=arm-apple-darwin"
471 //#define LLC_TARGET_ARGS "-march=arm -mtriple=arm-linux-gnueabi -soft-float"
473 #define LLC_TARGET_ARGS ""
477 * arch_emit_direct_call:
479 * Emit a direct call to the symbol TARGET. CALL_SIZE is set to the size of the
483 arch_emit_direct_call (MonoAotCompile *acfg, const char *target, int *call_size)
485 #if defined(TARGET_X86) || defined(TARGET_AMD64)
486 /* Need to make sure this is exactly 5 bytes long */
487 emit_byte (acfg, '\xe8');
488 emit_symbol_diff (acfg, target, ".", -4);
490 #elif defined(TARGET_ARM)
491 if (acfg->use_bin_writer) {
498 img_writer_emit_reloc (acfg->w, R_ARM_CALL, target, -8);
499 emit_bytes (acfg, buf, 4);
501 img_writer_emit_unset_mode (acfg->w);
502 fprintf (acfg->fp, "bl %s\n", target);
505 #elif defined(TARGET_POWERPC)
506 if (acfg->use_bin_writer) {
507 g_assert_not_reached ();
509 img_writer_emit_unset_mode (acfg->w);
510 fprintf (acfg->fp, "bl %s\n", target);
514 g_assert_not_reached ();
520 * - we use an approach similar to the x86 abi: reserve a register (r30) to hold
522 * - The full-aot trampolines need access to the GOT of mscorlib, so we store
523 * in in the 2. slot of every GOT, and require every method to place the GOT
524 * address in r30, even when it doesn't access the GOT otherwise. This way,
525 * the trampolines can compute the mscorlib GOT address by loading 4(r30).
530 * PPC64 uses function descriptors which greatly complicate all code, since
531 * these are used very inconsistently in the runtime. Some functions like
532 * mono_compile_method () return ftn descriptors, while others like the
533 * trampoline creation functions do not.
534 * We assume that all GOT slots contain function descriptors, and create
535 * descriptors in aot-runtime.c when needed.
536 * The ppc64 abi uses r2 to hold the address of the TOC/GOT, which is loaded
537 * from function descriptors, we could do the same, but it would require
538 * rewriting all the ppc/aot code to handle function descriptors properly.
539 * So instead, we use the same approach as on PPC32.
540 * This is a horrible mess, but fixing it would probably lead to an even bigger
544 #ifdef MONO_ARCH_AOT_SUPPORTED
546 * arch_emit_got_offset:
548 * The memory pointed to by CODE should hold native code for computing the GOT
549 * address. Emit this code while patching it with the offset between code and
550 * the GOT. CODE_SIZE is set to the number of bytes emitted.
553 arch_emit_got_offset (MonoAotCompile *acfg, guint8 *code, int *code_size)
555 #if defined(TARGET_POWERPC64)
556 g_assert (!acfg->use_bin_writer);
557 img_writer_emit_unset_mode (acfg->w);
559 * The ppc32 code doesn't seem to work on ppc64, the assembler complains about
560 * unsupported relocations. So we store the got address into the .Lgot_addr
561 * symbol which is in the text segment, compute its address, and load it.
563 fprintf (acfg->fp, ".L%d:\n", acfg->label_generator);
564 fprintf (acfg->fp, "lis 0, (.Lgot_addr + 4 - .L%d)@h\n", acfg->label_generator);
565 fprintf (acfg->fp, "ori 0, 0, (.Lgot_addr + 4 - .L%d)@l\n", acfg->label_generator);
566 fprintf (acfg->fp, "add 30, 30, 0\n");
567 fprintf (acfg->fp, "%s 30, 0(30)\n", PPC_LD_OP);
568 acfg->label_generator ++;
570 #elif defined(TARGET_POWERPC)
571 g_assert (!acfg->use_bin_writer);
572 img_writer_emit_unset_mode (acfg->w);
573 fprintf (acfg->fp, ".L%d:\n", acfg->label_generator);
574 fprintf (acfg->fp, "lis 0, (%s + 4 - .L%d)@h\n", acfg->got_symbol, acfg->label_generator);
575 fprintf (acfg->fp, "ori 0, 0, (%s + 4 - .L%d)@l\n", acfg->got_symbol, acfg->label_generator);
576 acfg->label_generator ++;
579 guint32 offset = mono_arch_get_patch_offset (code);
580 emit_bytes (acfg, code, offset);
581 emit_symbol_diff (acfg, acfg->got_symbol, ".", offset);
583 *code_size = offset + 4;
588 * arch_emit_got_access:
590 * The memory pointed to by CODE should hold native code for loading a GOT
591 * slot. Emit this code while patching it so it accesses the GOT slot GOT_SLOT.
592 * CODE_SIZE is set to the number of bytes emitted.
595 arch_emit_got_access (MonoAotCompile *acfg, guint8 *code, int got_slot, int *code_size)
597 /* Emit beginning of instruction */
598 emit_bytes (acfg, code, mono_arch_get_patch_offset (code));
600 /* Emit the offset */
602 emit_symbol_diff (acfg, acfg->got_symbol, ".", (unsigned int) ((got_slot * sizeof (gpointer)) - 4));
603 *code_size = mono_arch_get_patch_offset (code) + 4;
604 #elif defined(TARGET_X86)
605 emit_int32 (acfg, (unsigned int) ((got_slot * sizeof (gpointer))));
606 *code_size = mono_arch_get_patch_offset (code) + 4;
607 #elif defined(TARGET_ARM)
608 emit_symbol_diff (acfg, acfg->got_symbol, ".", (unsigned int) ((got_slot * sizeof (gpointer))) - 12);
609 *code_size = mono_arch_get_patch_offset (code) + 4;
610 #elif defined(TARGET_POWERPC)
616 ppc_load32 (code, ppc_r0, got_slot * sizeof (gpointer));
617 g_assert (code - buf == 8);
618 emit_bytes (acfg, buf, code - buf);
619 *code_size = code - buf;
622 g_assert_not_reached ();
629 * arch_emit_plt_entry:
631 * Emit code for the PLT entry with index INDEX.
634 arch_emit_plt_entry (MonoAotCompile *acfg, int index)
636 #if defined(TARGET_X86)
638 /* It is filled up during loading by the AOT loader. */
639 emit_zero_bytes (acfg, 16);
641 /* Need to make sure this is 9 bytes long */
642 emit_byte (acfg, '\xe9');
643 emit_symbol_diff (acfg, acfg->plt_symbol, ".", -4);
644 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
646 #elif defined(TARGET_AMD64)
648 * We can't emit jumps because they are 32 bits only so they can't be patched.
649 * So we make indirect calls through GOT entries which are patched by the AOT
650 * loader to point to .Lpd entries.
652 /* jmpq *<offset>(%rip) */
653 emit_byte (acfg, '\xff');
654 emit_byte (acfg, '\x25');
655 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) -4);
656 /* Used by mono_aot_get_plt_info_offset */
657 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
658 #elif defined(TARGET_ARM)
663 * - optimize OP_AOTCONST implementation
664 * - optimize the PLT entries
665 * - optimize SWITCH AOT implementation
668 if (acfg->use_bin_writer && FALSE) {
669 /* FIXME: mono_arch_patch_plt_entry () needs to decode this */
670 /* We only emit 1 relocation since we implement it ourselves anyway */
671 img_writer_emit_reloc (acfg->w, R_ARM_ALU_PC_G0_NC, acfg->got_symbol, ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) - 8);
672 /* FIXME: A 2 instruction encoding is sufficient in most cases */
673 ARM_ADD_REG_IMM (code, ARMREG_IP, ARMREG_PC, 0, 0);
674 ARM_ADD_REG_IMM (code, ARMREG_IP, ARMREG_IP, 0, 0);
675 ARM_LDR_IMM (code, ARMREG_PC, ARMREG_IP, 0);
676 emit_bytes (acfg, buf, code - buf);
677 /* Used by mono_aot_get_plt_info_offset */
678 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
680 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 0);
681 ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_IP);
682 emit_bytes (acfg, buf, code - buf);
683 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) - 4);
684 /* Used by mono_aot_get_plt_info_offset */
685 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
688 * The plt_got_info_offset is computed automatically by
689 * mono_aot_get_plt_info_offset (), so no need to save it here.
691 #elif defined(TARGET_POWERPC)
692 guint32 offset = (acfg->plt_got_offset_base + index) * sizeof (gpointer);
694 /* The GOT address is guaranteed to be in r30 by OP_LOAD_GOTADDR */
695 g_assert (!acfg->use_bin_writer);
696 img_writer_emit_unset_mode (acfg->w);
697 fprintf (acfg->fp, "lis 11, %d@h\n", offset);
698 fprintf (acfg->fp, "ori 11, 11, %d@l\n", offset);
699 fprintf (acfg->fp, "add 11, 11, 30\n");
700 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
701 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
702 fprintf (acfg->fp, "%s 2, %d(11)\n", PPC_LD_OP, (int)sizeof (gpointer));
703 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
705 fprintf (acfg->fp, "mtctr 11\n");
706 fprintf (acfg->fp, "bctr\n");
707 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
709 g_assert_not_reached ();
714 * arch_emit_specific_trampoline:
716 * Emit code for a specific trampoline. OFFSET is the offset of the first of
717 * two GOT slots which contain the generic trampoline address and the trampoline
718 * argument. TRAMP_SIZE is set to the size of the emitted trampoline.
721 arch_emit_specific_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
724 * The trampolines created here are variations of the specific
725 * trampolines created in mono_arch_create_specific_trampoline (). The
727 * - the generic trampoline address is taken from a got slot.
728 * - the offset of the got slot where the trampoline argument is stored
729 * is embedded in the instruction stream, and the generic trampoline
730 * can load the argument by loading the offset, adding it to the
731 * address of the trampoline to get the address of the got slot, and
732 * loading the argument from there.
733 * - all the trampolines should be of the same length.
735 #if defined(TARGET_AMD64)
736 /* This should be exactly 16 bytes long */
738 /* call *<offset>(%rip) */
739 emit_byte (acfg, '\x41');
740 emit_byte (acfg, '\xff');
741 emit_byte (acfg, '\x15');
742 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
743 /* This should be relative to the start of the trampoline */
744 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 19);
745 emit_zero_bytes (acfg, 5);
746 #elif defined(TARGET_ARM)
750 /* This should be exactly 20 bytes long */
753 ARM_PUSH (code, 0x5fff);
754 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 4);
755 /* Load the value from the GOT */
756 ARM_LDR_REG_REG (code, ARMREG_R1, ARMREG_PC, ARMREG_R1);
758 ARM_BLX_REG (code, ARMREG_R1);
760 g_assert (code - buf == 16);
763 emit_bytes (acfg, buf, code - buf);
765 * Only one offset is needed, since the second one would be equal to the
768 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 4);
769 //emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4 + 8);
770 #elif defined(TARGET_POWERPC)
777 g_assert (!acfg->use_bin_writer);
780 * PPC has no ip relative addressing, so we need to compute the address
781 * of the mscorlib got. That is slow and complex, so instead, we store it
782 * in the second got slot of every aot image. The caller already computed
783 * the address of its got and placed it into r30.
785 img_writer_emit_unset_mode (acfg->w);
786 /* Load mscorlib got address */
787 fprintf (acfg->fp, "%s 0, %d(30)\n", PPC_LD_OP, (int)sizeof (gpointer));
788 /* Load generic trampoline address */
789 fprintf (acfg->fp, "lis 11, %d@h\n", (int)(offset * sizeof (gpointer)));
790 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)(offset * sizeof (gpointer)));
791 fprintf (acfg->fp, "%s 11, 11, 0\n", PPC_LDX_OP);
792 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
793 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
795 fprintf (acfg->fp, "mtctr 11\n");
796 /* Load trampoline argument */
797 /* On ppc, we pass it normally to the generic trampoline */
798 fprintf (acfg->fp, "lis 11, %d@h\n", (int)((offset + 1) * sizeof (gpointer)));
799 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)((offset + 1) * sizeof (gpointer)));
800 fprintf (acfg->fp, "%s 0, 11, 0\n", PPC_LDX_OP);
801 /* Branch to generic trampoline */
802 fprintf (acfg->fp, "bctr\n");
804 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
805 *tramp_size = 10 * 4;
810 g_assert_not_reached ();
815 * arch_emit_unbox_trampoline:
817 * Emit code for the unbox trampoline for METHOD used in the full-aot case.
818 * CALL_TARGET is the symbol pointing to the native code of METHOD.
821 arch_emit_unbox_trampoline (MonoAotCompile *acfg, MonoMethod *method, MonoGenericSharingContext *gsctx, const char *call_target)
823 #if defined(TARGET_AMD64)
828 this_reg = mono_arch_get_this_arg_reg (mono_method_signature (method), gsctx, NULL);
830 amd64_alu_reg_imm (code, X86_ADD, this_reg, sizeof (MonoObject));
832 emit_bytes (acfg, buf, code - buf);
834 emit_byte (acfg, '\xe9');
835 emit_symbol_diff (acfg, call_target, ".", -4);
836 #elif defined(TARGET_ARM)
843 if (MONO_TYPE_ISSTRUCT (mono_method_signature (method)->ret))
846 ARM_ADD_REG_IMM8 (code, this_pos, this_pos, sizeof (MonoObject));
848 emit_bytes (acfg, buf, code - buf);
850 if (acfg->use_bin_writer) {
857 img_writer_emit_reloc (acfg->w, R_ARM_JUMP24, call_target, -8);
858 emit_bytes (acfg, buf, 4);
860 fprintf (acfg->fp, "\n\tb %s\n", call_target);
862 #elif defined(TARGET_POWERPC)
865 if (MONO_TYPE_ISSTRUCT (mono_method_signature (method)->ret))
868 g_assert (!acfg->use_bin_writer);
870 fprintf (acfg->fp, "\n\taddi %d, %d, %d\n", this_pos, this_pos, (int)sizeof (MonoObject));
871 fprintf (acfg->fp, "\n\tb %s\n", call_target);
873 g_assert_not_reached ();
878 * arch_emit_static_rgctx_trampoline:
880 * Emit code for a static rgctx trampoline. OFFSET is the offset of the first of
881 * two GOT slots which contain the rgctx argument, and the method to jump to.
882 * TRAMP_SIZE is set to the size of the emitted trampoline.
883 * These kinds of trampolines cannot be enumerated statically, since there could
884 * be one trampoline per method instantiation, so we emit the same code for all
885 * trampolines, and parameterize them using two GOT slots.
888 arch_emit_static_rgctx_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
890 #if defined(TARGET_AMD64)
891 /* This should be exactly 13 bytes long */
894 /* mov <OFFSET>(%rip), %r10 */
895 emit_byte (acfg, '\x4d');
896 emit_byte (acfg, '\x8b');
897 emit_byte (acfg, '\x15');
898 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
900 /* jmp *<offset>(%rip) */
901 emit_byte (acfg, '\xff');
902 emit_byte (acfg, '\x25');
903 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4);
904 #elif defined(TARGET_ARM)
908 /* This should be exactly 24 bytes long */
911 /* Load rgctx value */
912 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 8);
913 ARM_LDR_REG_REG (code, MONO_ARCH_RGCTX_REG, ARMREG_PC, ARMREG_IP);
914 /* Load branch addr + branch */
915 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 4);
916 ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_IP);
918 g_assert (code - buf == 16);
921 emit_bytes (acfg, buf, code - buf);
922 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 8);
923 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4 + 4);
924 #elif defined(TARGET_POWERPC)
931 g_assert (!acfg->use_bin_writer);
934 * PPC has no ip relative addressing, so we need to compute the address
935 * of the mscorlib got. That is slow and complex, so instead, we store it
936 * in the second got slot of every aot image. The caller already computed
937 * the address of its got and placed it into r30.
939 img_writer_emit_unset_mode (acfg->w);
940 /* Load mscorlib got address */
941 fprintf (acfg->fp, "%s 0, %d(30)\n", PPC_LD_OP, (int)sizeof (gpointer));
943 fprintf (acfg->fp, "lis 11, %d@h\n", (int)(offset * sizeof (gpointer)));
944 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)(offset * sizeof (gpointer)));
945 fprintf (acfg->fp, "%s %d, 11, 0\n", PPC_LDX_OP, MONO_ARCH_RGCTX_REG);
946 /* Load target address */
947 fprintf (acfg->fp, "lis 11, %d@h\n", (int)((offset + 1) * sizeof (gpointer)));
948 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)((offset + 1) * sizeof (gpointer)));
949 fprintf (acfg->fp, "%s 11, 11, 0\n", PPC_LDX_OP);
950 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
951 fprintf (acfg->fp, "%s 2, %d(11)\n", PPC_LD_OP, (int)sizeof (gpointer));
952 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
954 fprintf (acfg->fp, "mtctr 11\n");
955 /* Branch to the target address */
956 fprintf (acfg->fp, "bctr\n");
958 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
959 *tramp_size = 11 * 4;
965 g_assert_not_reached ();
970 * arch_emit_imt_thunk:
972 * Emit an IMT thunk usable in full-aot mode. The thunk uses 1 got slot which
973 * points to an array of pointer pairs. The pairs of the form [key, ptr], where
974 * key is the IMT key, and ptr holds the address of a memory location holding
975 * the address to branch to if the IMT arg matches the key. The array is
976 * terminated by a pair whose key is NULL, and whose ptr is the address of the
978 * TRAMP_SIZE is set to the size of the emitted trampoline.
981 arch_emit_imt_thunk (MonoAotCompile *acfg, int offset, int *tramp_size)
983 #if defined(TARGET_AMD64)
987 code = buf = g_malloc (256);
989 /* FIXME: Optimize this, i.e. use binary search etc. */
990 /* Maybe move the body into a separate function (slower, but much smaller) */
992 /* R10 is a free register */
995 amd64_alu_membase_imm (code, X86_CMP, AMD64_R10, 0, 0);
997 amd64_branch8 (code, X86_CC_Z, FALSE, 0);
1000 amd64_alu_membase_reg (code, X86_CMP, AMD64_R10, 0, MONO_ARCH_IMT_REG);
1002 amd64_branch8 (code, X86_CC_Z, FALSE, 0);
1005 amd64_alu_reg_imm (code, X86_ADD, AMD64_R10, 2 * sizeof (gpointer));
1006 amd64_jump_code (code, labels [0]);
1009 mono_amd64_patch (labels [2], code);
1010 amd64_mov_reg_membase (code, AMD64_R10, AMD64_R10, sizeof (gpointer), 8);
1011 amd64_jump_membase (code, AMD64_R10, 0);
1015 mono_amd64_patch (labels [1], code);
1016 x86_breakpoint (code);
1018 /* mov <OFFSET>(%rip), %r10 */
1019 emit_byte (acfg, '\x4d');
1020 emit_byte (acfg, '\x8b');
1021 emit_byte (acfg, '\x15');
1022 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
1024 emit_bytes (acfg, buf, code - buf);
1026 *tramp_size = code - buf + 7;
1027 #elif defined(TARGET_ARM)
1029 guint8 *code, *code2, *labels [16];
1033 /* The IMT method is in v5 */
1035 /* Need at least two free registers, plus a slot for storing the pc */
1036 ARM_PUSH (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_R2));
1038 /* Load the parameter from the GOT */
1039 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_PC, 0);
1040 ARM_LDR_REG_REG (code, ARMREG_R0, ARMREG_PC, ARMREG_R0);
1043 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_R0, 0);
1044 ARM_CMP_REG_REG (code, ARMREG_R1, ARMREG_V5);
1046 ARM_B_COND (code, ARMCOND_EQ, 0);
1048 /* End-of-loop check */
1049 ARM_CMP_REG_IMM (code, ARMREG_R1, 0, 0);
1051 ARM_B_COND (code, ARMCOND_EQ, 0);
1054 ARM_ADD_REG_IMM8 (code, ARMREG_R0, ARMREG_R0, sizeof (gpointer) * 2);
1057 arm_patch (labels [4], labels [1]);
1060 arm_patch (labels [2], code);
1061 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4);
1062 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 0);
1063 /* Save it to the third stack slot */
1064 ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8);
1065 /* Restore the registers and branch */
1066 ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC));
1069 arm_patch (labels [3], code);
1074 ARM_LDR_IMM (code2, ARMREG_R0, ARMREG_PC, (code - (labels [0] + 8)));
1076 emit_bytes (acfg, buf, code - buf);
1077 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) + (code - (labels [0] + 8)) - 4);
1079 *tramp_size = code - buf + 4;
1080 #elif defined(TARGET_POWERPC)
1082 guint8 *code, *labels [16];
1086 /* Load the mscorlib got address */
1087 ppc_ldptr (code, ppc_r11, sizeof (gpointer), ppc_r30);
1088 /* Load the parameter from the GOT */
1089 ppc_load (code, ppc_r0, offset * sizeof (gpointer));
1090 ppc_ldptr_indexed (code, ppc_r11, ppc_r11, ppc_r0);
1092 /* Load and check key */
1094 ppc_ldptr (code, ppc_r0, 0, ppc_r11);
1095 ppc_cmp (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, MONO_ARCH_IMT_REG);
1097 ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0);
1099 /* End-of-loop check */
1100 ppc_cmpi (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, 0);
1102 ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0);
1105 ppc_addi (code, ppc_r11, ppc_r11, 2 * sizeof (gpointer));
1108 mono_ppc_patch (labels [4], labels [1]);
1111 mono_ppc_patch (labels [2], code);
1112 ppc_ldptr (code, ppc_r11, sizeof (gpointer), ppc_r11);
1113 /* r11 now contains the value of the vtable slot */
1114 /* this is not a function descriptor on ppc64 */
1115 ppc_ldptr (code, ppc_r11, 0, ppc_r11);
1116 ppc_mtctr (code, ppc_r11);
1117 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
1120 mono_ppc_patch (labels [3], code);
1124 *tramp_size = code - buf;
1126 emit_bytes (acfg, buf, code - buf);
1128 g_assert_not_reached ();
1133 arch_emit_autoreg (MonoAotCompile *acfg, char *symbol)
1135 #if defined(TARGET_POWERPC) && defined(__mono_ilp32__)
1136 /* Based on code generated by gcc */
1137 img_writer_emit_unset_mode (acfg->w);
1140 #if defined(_MSC_VER) || defined(MONO_CROSS_COMPILE)
1141 ".section .ctors,\"aw\",@progbits\n"
1145 ".section .opd,\"aw\"\n"
1148 ".long .%s,.TOC.@tocbase32\n"
1151 ".type .%s,@function\n"
1153 ".%s:\n", symbol, symbol, symbol, symbol, symbol, symbol, symbol, symbol);
1155 ".section .ctors,\"aw\",@progbits\n"
1159 ".section .opd,\"aw\"\n"
1162 ".long .%1$s,.TOC.@tocbase32\n"
1163 ".size %1$s,.-%1$s\n"
1165 ".type .%1$s,@function\n"
1167 ".%1$s:\n", symbol);
1178 "lis 3, .Lglobals@h\n"
1179 "ori 3, 3, .Lglobals@l\n"
1180 "bl .mono_aot_register_module\n"
1188 #if defined(_MSC_VER) || defined(MONO_CROSS_COMPILE)
1190 ".size .%s,.-.%s\n", symbol, symbol);
1193 ".size .%1$s,.-.%1$s\n", symbol);
1200 * mono_arch_get_cie_program:
1202 * Get the unwind bytecode for the DWARF CIE.
1205 mono_arch_get_cie_program (void)
1210 mono_add_unwind_op_def_cfa (l, (guint8*)NULL, (guint8*)NULL, AMD64_RSP, 8);
1211 mono_add_unwind_op_offset (l, (guint8*)NULL, (guint8*)NULL, AMD64_RIP, -8);
1214 #elif defined(TARGET_POWERPC)
1217 mono_add_unwind_op_def_cfa (l, (guint8*)NULL, (guint8*)NULL, ppc_r1, 0);
1225 /* END OF ARCH SPECIFIC CODE */
1228 mono_get_field_token (MonoClassField *field)
1230 MonoClass *klass = field->parent;
1233 for (i = 0; i < klass->field.count; ++i) {
1234 if (field == &klass->fields [i])
1235 return MONO_TOKEN_FIELD_DEF | (klass->field.first + 1 + i);
1238 g_assert_not_reached ();
1243 encode_value (gint32 value, guint8 *buf, guint8 **endbuf)
1247 //printf ("ENCODE: %d 0x%x.\n", value, value);
1250 * Same encoding as the one used in the metadata, extended to handle values
1251 * greater than 0x1fffffff.
1253 if ((value >= 0) && (value <= 127))
1255 else if ((value >= 0) && (value <= 16383)) {
1256 p [0] = 0x80 | (value >> 8);
1257 p [1] = value & 0xff;
1259 } else if ((value >= 0) && (value <= 0x1fffffff)) {
1260 p [0] = (value >> 24) | 0xc0;
1261 p [1] = (value >> 16) & 0xff;
1262 p [2] = (value >> 8) & 0xff;
1263 p [3] = value & 0xff;
1268 p [1] = (value >> 24) & 0xff;
1269 p [2] = (value >> 16) & 0xff;
1270 p [3] = (value >> 8) & 0xff;
1271 p [4] = value & 0xff;
1279 stream_init (MonoDynamicStream *sh)
1282 sh->alloc_size = 4096;
1283 sh->data = g_malloc (4096);
1285 /* So offsets are > 0 */
1290 make_room_in_stream (MonoDynamicStream *stream, int size)
1292 if (size <= stream->alloc_size)
1295 while (stream->alloc_size <= size) {
1296 if (stream->alloc_size < 4096)
1297 stream->alloc_size = 4096;
1299 stream->alloc_size *= 2;
1302 stream->data = g_realloc (stream->data, stream->alloc_size);
1306 add_stream_data (MonoDynamicStream *stream, const char *data, guint32 len)
1310 make_room_in_stream (stream, stream->index + len);
1311 memcpy (stream->data + stream->index, data, len);
1312 idx = stream->index;
1313 stream->index += len;
1320 * Add data to the binary blob inside the aot image. Returns the offset inside the
1321 * blob where the data was stored.
1324 add_to_blob (MonoAotCompile *acfg, guint8 *data, guint32 data_len)
1326 if (acfg->blob.alloc_size == 0)
1327 stream_init (&acfg->blob);
1329 return add_stream_data (&acfg->blob, (char*)data, data_len);
1333 * emit_offset_table:
1335 * Emit a table of increasing offsets in a compact form using differential encoding.
1336 * There is an index entry for each GROUP_SIZE number of entries. The greater the
1337 * group size, the more compact the table becomes, but the slower it becomes to compute
1338 * a given entry. Returns the size of the table.
1341 emit_offset_table (MonoAotCompile *acfg, int noffsets, int group_size, gint32 *offsets)
1343 gint32 current_offset;
1344 int i, buf_size, ngroups, index_entry_size;
1346 guint32 *index_offsets;
1348 ngroups = (noffsets + (group_size - 1)) / group_size;
1350 index_offsets = g_new0 (guint32, ngroups);
1352 buf_size = noffsets * 4;
1353 p = buf = g_malloc0 (buf_size);
1356 for (i = 0; i < noffsets; ++i) {
1357 //printf ("D: %d -> %d\n", i, offsets [i]);
1358 if ((i % group_size) == 0) {
1359 index_offsets [i / group_size] = p - buf;
1360 /* Emit the full value for these entries */
1361 encode_value (offsets [i], p, &p);
1363 /* The offsets are allowed to be non-increasing */
1364 //g_assert (offsets [i] >= current_offset);
1365 encode_value (offsets [i] - current_offset, p, &p);
1367 current_offset = offsets [i];
1370 if (ngroups && index_offsets [ngroups - 1] < 65000)
1371 index_entry_size = 2;
1373 index_entry_size = 4;
1375 /* Emit the header */
1376 emit_int32 (acfg, noffsets);
1377 emit_int32 (acfg, group_size);
1378 emit_int32 (acfg, ngroups);
1379 emit_int32 (acfg, index_entry_size);
1381 /* Emit the index */
1382 for (i = 0; i < ngroups; ++i) {
1383 if (index_entry_size == 2)
1384 emit_int16 (acfg, index_offsets [i]);
1386 emit_int32 (acfg, index_offsets [i]);
1390 emit_bytes (acfg, buf, p - buf);
1392 return (int)(p - buf) + (ngroups * 4);
1396 get_image_index (MonoAotCompile *cfg, MonoImage *image)
1400 index = GPOINTER_TO_UINT (g_hash_table_lookup (cfg->image_hash, image));
1404 index = g_hash_table_size (cfg->image_hash);
1405 g_hash_table_insert (cfg->image_hash, image, GUINT_TO_POINTER (index + 1));
1406 g_ptr_array_add (cfg->image_table, image);
1412 find_typespec_for_class (MonoAotCompile *acfg, MonoClass *klass)
1415 MonoClass *k = NULL;
1417 /* FIXME: Search referenced images as well */
1418 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
1419 k = mono_class_get_full (acfg->image, MONO_TOKEN_TYPE_SPEC | (i + 1), NULL);
1424 if (i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows)
1425 return MONO_TOKEN_TYPE_SPEC | (i + 1);
1431 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf);
1436 * Encode a reference to KLASS. We use our home-grown encoding instead of the
1437 * standard metadata encoding.
1440 encode_klass_ref (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf)
1444 if (klass->generic_class) {
1446 g_assert (klass->type_token);
1448 /* Find a typespec for a class if possible */
1449 token = find_typespec_for_class (acfg, klass);
1451 encode_value (token, p, &p);
1452 encode_value (get_image_index (acfg, acfg->image), p, &p);
1454 MonoClass *gclass = klass->generic_class->container_class;
1455 MonoGenericInst *inst = klass->generic_class->context.class_inst;
1458 /* Encode it ourselves */
1460 encode_value (MONO_TOKEN_TYPE_SPEC, p, &p);
1461 encode_value (MONO_TYPE_GENERICINST, p, &p);
1462 encode_klass_ref (acfg, gclass, p, &p);
1463 encode_value (inst->type_argc, p, &p);
1464 for (i = 0; i < inst->type_argc; ++i)
1465 encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
1467 } else if (klass->type_token) {
1468 g_assert (mono_metadata_token_code (klass->type_token) == MONO_TOKEN_TYPE_DEF);
1469 encode_value (klass->type_token - MONO_TOKEN_TYPE_DEF, p, &p);
1470 encode_value (get_image_index (acfg, klass->image), p, &p);
1471 } else if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) {
1472 MonoGenericContainer *container = mono_type_get_generic_param_owner (&klass->byval_arg);
1473 g_assert (container);
1476 encode_value (MONO_TOKEN_TYPE_SPEC, p, &p);
1477 encode_value (klass->byval_arg.type, p, &p);
1479 encode_value (mono_type_get_generic_param_num (&klass->byval_arg), p, &p);
1481 encode_value (container->is_method, p, &p);
1482 if (container->is_method)
1483 encode_method_ref (acfg, container->owner.method, p, &p);
1485 encode_klass_ref (acfg, container->owner.klass, p, &p);
1488 g_assert (klass->rank > 0);
1489 encode_value (MONO_TOKEN_TYPE_DEF, p, &p);
1490 encode_value (get_image_index (acfg, klass->image), p, &p);
1491 encode_value (klass->rank, p, &p);
1492 encode_klass_ref (acfg, klass->element_class, p, &p);
1498 encode_field_info (MonoAotCompile *cfg, MonoClassField *field, guint8 *buf, guint8 **endbuf)
1500 guint32 token = mono_get_field_token (field);
1503 encode_klass_ref (cfg, field->parent, p, &p);
1504 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_FIELD_DEF);
1505 encode_value (token - MONO_TOKEN_FIELD_DEF, p, &p);
1510 encode_generic_context (MonoAotCompile *acfg, MonoGenericContext *context, guint8 *buf, guint8 **endbuf)
1514 MonoGenericInst *inst;
1516 /* Encode the context */
1517 inst = context->class_inst;
1518 encode_value (inst ? 1 : 0, p, &p);
1520 encode_value (inst->type_argc, p, &p);
1521 for (i = 0; i < inst->type_argc; ++i)
1522 encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
1524 inst = context->method_inst;
1525 encode_value (inst ? 1 : 0, p, &p);
1527 encode_value (inst->type_argc, p, &p);
1528 for (i = 0; i < inst->type_argc; ++i)
1529 encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
1535 #define MAX_IMAGE_INDEX 250
1538 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf)
1540 guint32 image_index = get_image_index (acfg, method->klass->image);
1541 guint32 token = method->token;
1542 MonoJumpInfoToken *ji;
1547 * The encoding for most methods is as follows:
1548 * - image index encoded as a leb128
1549 * - token index encoded as a leb128
1550 * Values of image index >= MONO_AOT_METHODREF_MIN are used to mark additional
1551 * types of method encodings.
1554 g_assert (image_index < MONO_AOT_METHODREF_MIN);
1556 /* Mark methods which can't use aot trampolines because they need the further
1557 * processing in mono_magic_trampoline () which requires a MonoMethod*.
1559 if ((method->is_generic && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) ||
1560 (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED))
1561 encode_value ((MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE << 24), p, &p);
1564 * Some wrapper methods are shared using their signature, encode their
1565 * stringified signature instead.
1566 * FIXME: Optimize disk usage
1569 if (method->wrapper_type) {
1570 if (method->wrapper_type == MONO_WRAPPER_RUNTIME_INVOKE) {
1571 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1572 if (strcmp (method->name, "runtime_invoke_dynamic")) {
1573 name = mono_aot_wrapper_name (method);
1574 } else if (mono_marshal_method_from_wrapper (method) != method) {
1575 /* Direct wrapper, encode it normally */
1577 name = g_strdup_printf ("(wrapper runtime-invoke):%s (%s)", method->name, tmpsig);
1580 } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
1581 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1582 name = g_strdup_printf ("(wrapper delegate-invoke):%s (%s)", method->name, tmpsig);
1584 } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_BEGIN_INVOKE) {
1585 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1586 name = g_strdup_printf ("(wrapper delegate-begin-invoke):%s (%s)", method->name, tmpsig);
1588 } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_END_INVOKE) {
1589 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1590 name = g_strdup_printf ("(wrapper delegate-end-invoke):%s (%s)", method->name, tmpsig);
1596 encode_value ((MONO_AOT_METHODREF_WRAPPER_NAME << 24), p, &p);
1597 strcpy ((char*)p, name);
1598 p += strlen (name) + 1;
1600 } else if (method->wrapper_type) {
1601 encode_value ((MONO_AOT_METHODREF_WRAPPER << 24), p, &p);
1603 encode_value (method->wrapper_type, p, &p);
1605 switch (method->wrapper_type) {
1606 case MONO_WRAPPER_REMOTING_INVOKE:
1607 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
1608 case MONO_WRAPPER_XDOMAIN_INVOKE: {
1611 m = mono_marshal_method_from_wrapper (method);
1613 encode_method_ref (acfg, m, p, &p);
1616 case MONO_WRAPPER_PROXY_ISINST:
1617 case MONO_WRAPPER_LDFLD:
1618 case MONO_WRAPPER_LDFLDA:
1619 case MONO_WRAPPER_STFLD:
1620 case MONO_WRAPPER_ISINST: {
1621 MonoClass *proxy_class = mono_marshal_get_wrapper_info (method);
1622 encode_klass_ref (acfg, proxy_class, p, &p);
1625 case MONO_WRAPPER_LDFLD_REMOTE:
1626 case MONO_WRAPPER_STFLD_REMOTE:
1628 case MONO_WRAPPER_ALLOC: {
1629 AllocatorWrapperInfo *info = mono_marshal_get_wrapper_info (method);
1631 g_assert (info->alloc_type != -1);
1632 encode_value (info->alloc_type, p, &p);
1635 case MONO_WRAPPER_STELEMREF:
1637 case MONO_WRAPPER_UNKNOWN:
1638 if (strcmp (method->name, "FastMonitorEnter") == 0)
1639 encode_value (MONO_AOT_WRAPPER_MONO_ENTER, p, &p);
1640 else if (strcmp (method->name, "FastMonitorExit") == 0)
1641 encode_value (MONO_AOT_WRAPPER_MONO_EXIT, p, &p);
1643 g_assert_not_reached ();
1645 case MONO_WRAPPER_SYNCHRONIZED:
1646 case MONO_WRAPPER_MANAGED_TO_NATIVE:
1647 case MONO_WRAPPER_RUNTIME_INVOKE: {
1650 m = mono_marshal_method_from_wrapper (method);
1652 g_assert (m != method);
1653 encode_method_ref (acfg, m, p, &p);
1656 case MONO_WRAPPER_MANAGED_TO_MANAGED:
1657 if (!strcmp (method->name, "ElementAddr")) {
1658 ElementAddrWrapperInfo *info = mono_marshal_get_wrapper_info (method);
1661 encode_value (MONO_AOT_WRAPPER_ELEMENT_ADDR, p, &p);
1662 encode_value (info->rank, p, &p);
1663 encode_value (info->elem_size, p, &p);
1665 g_assert_not_reached ();
1669 g_assert_not_reached ();
1671 } else if (mono_method_signature (method)->is_inflated) {
1673 * This is a generic method, find the original token which referenced it and
1675 * Obtain the token from information recorded by the JIT.
1677 ji = g_hash_table_lookup (acfg->token_info_hash, method);
1679 image_index = get_image_index (acfg, ji->image);
1680 g_assert (image_index < MAX_IMAGE_INDEX);
1683 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
1684 encode_value (image_index, p, &p);
1685 encode_value (token, p, &p);
1687 MonoMethod *declaring;
1688 MonoGenericContext *context = mono_method_get_context (method);
1690 g_assert (method->is_inflated);
1691 declaring = ((MonoMethodInflated*)method)->declaring;
1694 * This might be a non-generic method of a generic instance, which
1695 * doesn't have a token since the reference is generated by the JIT
1696 * like Nullable:Box/Unbox, or by generic sharing.
1699 encode_value ((MONO_AOT_METHODREF_GINST << 24), p, &p);
1700 /* Encode the klass */
1701 encode_klass_ref (acfg, method->klass, p, &p);
1702 /* Encode the method */
1703 image_index = get_image_index (acfg, method->klass->image);
1704 g_assert (image_index < MAX_IMAGE_INDEX);
1705 g_assert (declaring->token);
1706 token = declaring->token;
1707 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
1708 encode_value (image_index, p, &p);
1709 encode_value (token, p, &p);
1710 encode_generic_context (acfg, context, p, &p);
1712 } else if (token == 0) {
1713 /* This might be a method of a constructed type like int[,].Set */
1714 /* Obtain the token from information recorded by the JIT */
1715 ji = g_hash_table_lookup (acfg->token_info_hash, method);
1717 image_index = get_image_index (acfg, ji->image);
1718 g_assert (image_index < MAX_IMAGE_INDEX);
1721 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
1722 encode_value (image_index, p, &p);
1723 encode_value (token, p, &p);
1726 g_assert (method->klass->rank);
1728 /* Encode directly */
1729 encode_value ((MONO_AOT_METHODREF_ARRAY << 24), p, &p);
1730 encode_klass_ref (acfg, method->klass, p, &p);
1731 if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank)
1732 encode_value (0, p, &p);
1733 else if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank * 2)
1734 encode_value (1, p, &p);
1735 else if (!strcmp (method->name, "Get"))
1736 encode_value (2, p, &p);
1737 else if (!strcmp (method->name, "Address"))
1738 encode_value (3, p, &p);
1739 else if (!strcmp (method->name, "Set"))
1740 encode_value (4, p, &p);
1742 g_assert_not_reached ();
1745 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
1746 encode_value ((image_index << 24) | mono_metadata_token_index (token), p, &p);
1752 compare_patches (gconstpointer a, gconstpointer b)
1756 i = (*(MonoJumpInfo**)a)->ip.i;
1757 j = (*(MonoJumpInfo**)b)->ip.i;
1771 * Return whenever PATCH_INFO refers to a direct call, and thus requires a
1774 static inline gboolean
1775 is_plt_patch (MonoJumpInfo *patch_info)
1777 switch (patch_info->type) {
1778 case MONO_PATCH_INFO_METHOD:
1779 case MONO_PATCH_INFO_INTERNAL_METHOD:
1780 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
1781 case MONO_PATCH_INFO_ICALL_ADDR:
1782 case MONO_PATCH_INFO_CLASS_INIT:
1783 case MONO_PATCH_INFO_RGCTX_FETCH:
1784 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
1785 case MONO_PATCH_INFO_MONITOR_ENTER:
1786 case MONO_PATCH_INFO_MONITOR_EXIT:
1787 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
1795 get_plt_offset (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
1799 if (is_plt_patch (patch_info)) {
1800 int idx = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_plt_offset, patch_info));
1802 // FIXME: This breaks the calculation of final_got_size
1803 if (!acfg->llvm && patch_info->type == MONO_PATCH_INFO_METHOD && (patch_info->data.method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)) {
1805 * Allocate a separate PLT slot for each such patch, since some plt
1806 * entries will refer to the method itself, and some will refer to the
1815 MonoJumpInfo *new_ji = mono_patch_info_dup_mp (acfg->mempool, patch_info);
1817 g_assert (!acfg->final_got_size);
1819 res = acfg->plt_offset;
1820 g_hash_table_insert (acfg->plt_offset_to_patch, GUINT_TO_POINTER (res), new_ji);
1821 g_hash_table_insert (acfg->patch_to_plt_offset, new_ji, GUINT_TO_POINTER (res));
1822 acfg->plt_offset ++;
1832 * Returns the offset of the GOT slot where the runtime object resulting from resolving
1833 * JI could be found if it exists, otherwise allocates a new one.
1836 get_got_offset (MonoAotCompile *acfg, MonoJumpInfo *ji)
1840 got_offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_got_offset_by_type [ji->type], ji));
1842 return got_offset - 1;
1844 got_offset = acfg->got_offset;
1845 acfg->got_offset ++;
1847 if (acfg->final_got_size)
1848 g_assert (got_offset < acfg->final_got_size);
1850 acfg->stats.got_slots ++;
1851 acfg->stats.got_slot_types [ji->type] ++;
1853 g_hash_table_insert (acfg->patch_to_got_offset, ji, GUINT_TO_POINTER (got_offset + 1));
1854 g_hash_table_insert (acfg->patch_to_got_offset_by_type [ji->type], ji, GUINT_TO_POINTER (got_offset + 1));
1855 g_ptr_array_add (acfg->got_patches, ji);
1860 /* Add a method to the list of methods which need to be emitted */
1862 add_method_with_index (MonoAotCompile *acfg, MonoMethod *method, int index, gboolean extra)
1865 if (!g_hash_table_lookup (acfg->method_indexes, method)) {
1866 g_ptr_array_add (acfg->methods, method);
1867 g_hash_table_insert (acfg->method_indexes, method, GUINT_TO_POINTER (index + 1));
1868 acfg->nmethods = acfg->methods->len + 1;
1871 if (method->wrapper_type || extra)
1872 g_ptr_array_add (acfg->extra_methods, method);
1876 get_method_index (MonoAotCompile *acfg, MonoMethod *method)
1878 int index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
1886 add_method_full (MonoAotCompile *acfg, MonoMethod *method, gboolean extra, int depth)
1890 index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
1894 index = acfg->method_index;
1895 add_method_with_index (acfg, method, index, extra);
1897 /* FIXME: Fix quadratic behavior */
1898 acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (index));
1900 g_hash_table_insert (acfg->method_depth, method, GUINT_TO_POINTER (depth));
1902 acfg->method_index ++;
1908 add_method (MonoAotCompile *acfg, MonoMethod *method)
1910 return add_method_full (acfg, method, FALSE, 0);
1914 add_extra_method (MonoAotCompile *acfg, MonoMethod *method)
1916 add_method_full (acfg, method, TRUE, 0);
1920 add_extra_method_with_depth (MonoAotCompile *acfg, MonoMethod *method, int depth)
1922 add_method_full (acfg, method, TRUE, depth);
1926 add_jit_icall_wrapper (gpointer key, gpointer value, gpointer user_data)
1928 MonoAotCompile *acfg = user_data;
1929 MonoJitICallInfo *callinfo = value;
1930 MonoMethod *wrapper;
1936 name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
1937 wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_for_pending_exc);
1940 add_method (acfg, wrapper);
1944 get_runtime_invoke_sig (MonoMethodSignature *sig)
1946 MonoMethodBuilder *mb;
1949 mb = mono_mb_new (mono_defaults.object_class, "FOO", MONO_WRAPPER_NONE);
1950 m = mono_mb_create_method (mb, sig, 16);
1951 return mono_marshal_get_runtime_invoke (m, FALSE);
1955 can_marshal_struct (MonoClass *klass)
1957 MonoClassField *field;
1958 gboolean can_marshal = TRUE;
1959 gpointer iter = NULL;
1961 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1964 /* Only allow a few field types to avoid asserts in the marshalling code */
1965 while ((field = mono_class_get_fields (klass, &iter))) {
1966 if ((field->type->attrs & FIELD_ATTRIBUTE_STATIC))
1969 switch (field->type->type) {
1974 case MONO_TYPE_BOOLEAN:
1977 case MONO_TYPE_CHAR:
1985 case MONO_TYPE_STRING:
1987 case MONO_TYPE_VALUETYPE:
1988 if (!mono_class_from_mono_type (field->type)->enumtype && !can_marshal_struct (mono_class_from_mono_type (field->type)))
1989 can_marshal = FALSE;
1992 can_marshal = FALSE;
1998 /* Its hard to compute whenever these can be marshalled or not */
1999 if (!strcmp (klass->name_space, "System.Net.NetworkInformation.MacOsStructs"))
2006 add_wrappers (MonoAotCompile *acfg)
2008 MonoMethod *method, *m;
2010 MonoMethodSignature *sig, *csig;
2014 * FIXME: Instead of AOTing all the wrappers, it might be better to redesign them
2015 * so there is only one wrapper of a given type, or inlining their contents into their
2020 * FIXME: This depends on the fact that different wrappers have different
2024 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2026 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2027 gboolean skip = FALSE;
2029 method = mono_get_method (acfg->image, token, NULL);
2031 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2032 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
2033 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
2036 if (method->is_generic || method->klass->generic_container)
2039 /* Skip methods which can not be handled by get_runtime_invoke () */
2040 sig = mono_method_signature (method);
2041 if ((sig->ret->type == MONO_TYPE_PTR) ||
2042 (sig->ret->type == MONO_TYPE_TYPEDBYREF))
2045 for (j = 0; j < sig->param_count; j++) {
2046 if (sig->params [j]->type == MONO_TYPE_TYPEDBYREF)
2050 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
2051 if (!method->klass->contextbound) {
2052 MonoDynCallInfo *info = mono_arch_dyn_call_prepare (sig);
2053 gboolean has_nullable = FALSE;
2055 for (j = 0; j < sig->param_count; j++) {
2056 if (sig->params [j]->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (sig->params [j])))
2057 has_nullable = TRUE;
2060 if (info && !has_nullable) {
2061 /* Supported by the dynamic runtime-invoke wrapper */
2069 //printf ("%s\n", mono_method_full_name (method, TRUE));
2070 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
2074 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
2075 #ifdef MONO_ARCH_HAVE_TLS_GET
2076 MonoMethodDesc *desc;
2077 MonoMethod *orig_method;
2081 /* Runtime invoke wrappers */
2083 /* void runtime-invoke () [.cctor] */
2084 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2085 csig->ret = &mono_defaults.void_class->byval_arg;
2086 add_method (acfg, get_runtime_invoke_sig (csig));
2088 /* void runtime-invoke () [Finalize] */
2089 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2091 csig->ret = &mono_defaults.void_class->byval_arg;
2092 add_method (acfg, get_runtime_invoke_sig (csig));
2094 /* void runtime-invoke (string) [exception ctor] */
2095 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2097 csig->ret = &mono_defaults.void_class->byval_arg;
2098 csig->params [0] = &mono_defaults.string_class->byval_arg;
2099 add_method (acfg, get_runtime_invoke_sig (csig));
2101 /* void runtime-invoke (string, string) [exception ctor] */
2102 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2104 csig->ret = &mono_defaults.void_class->byval_arg;
2105 csig->params [0] = &mono_defaults.string_class->byval_arg;
2106 csig->params [1] = &mono_defaults.string_class->byval_arg;
2107 add_method (acfg, get_runtime_invoke_sig (csig));
2109 /* string runtime-invoke () [Exception.ToString ()] */
2110 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2112 csig->ret = &mono_defaults.string_class->byval_arg;
2113 add_method (acfg, get_runtime_invoke_sig (csig));
2115 /* void runtime-invoke (string, Exception) [exception ctor] */
2116 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2118 csig->ret = &mono_defaults.void_class->byval_arg;
2119 csig->params [0] = &mono_defaults.string_class->byval_arg;
2120 csig->params [1] = &mono_defaults.exception_class->byval_arg;
2121 add_method (acfg, get_runtime_invoke_sig (csig));
2123 /* Assembly runtime-invoke (string, bool) [DoAssemblyResolve] */
2124 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2126 csig->ret = &(mono_class_from_name (
2127 mono_defaults.corlib, "System.Reflection", "Assembly"))->byval_arg;
2128 csig->params [0] = &mono_defaults.string_class->byval_arg;
2129 csig->params [1] = &mono_defaults.boolean_class->byval_arg;
2130 add_method (acfg, get_runtime_invoke_sig (csig));
2132 /* runtime-invoke used by finalizers */
2133 add_method (acfg, mono_marshal_get_runtime_invoke (mono_class_get_method_from_name_flags (mono_defaults.object_class, "Finalize", 0, 0), TRUE));
2135 /* This is used by mono_runtime_capture_context () */
2136 method = mono_get_context_capture_method ();
2138 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
2140 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
2141 add_method (acfg, mono_marshal_get_runtime_invoke_dynamic ());
2144 /* JIT icall wrappers */
2145 /* FIXME: locking */
2146 g_hash_table_foreach (mono_get_jit_icall_info (), add_jit_icall_wrapper, acfg);
2149 add_method (acfg, mono_marshal_get_stelemref ());
2151 #ifdef MONO_ARCH_HAVE_TLS_GET
2152 /* Managed Allocators */
2153 nallocators = mono_gc_get_managed_allocator_types ();
2154 for (i = 0; i < nallocators; ++i) {
2155 m = mono_gc_get_managed_allocator_by_type (i);
2157 add_method (acfg, m);
2160 /* Monitor Enter/Exit */
2161 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
2162 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
2163 g_assert (orig_method);
2164 mono_method_desc_free (desc);
2165 method = mono_monitor_get_fast_path (orig_method);
2167 add_method (acfg, method);
2169 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
2170 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
2171 g_assert (orig_method);
2172 mono_method_desc_free (desc);
2173 method = mono_monitor_get_fast_path (orig_method);
2175 add_method (acfg, method);
2180 * remoting-invoke-with-check wrappers are very frequent, so avoid emitting them,
2181 * we use the original method instead at runtime.
2182 * Since full-aot doesn't support remoting, this is not a problem.
2185 /* remoting-invoke wrappers */
2186 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2187 MonoMethodSignature *sig;
2189 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2190 method = mono_get_method (acfg->image, token, NULL);
2192 sig = mono_method_signature (method);
2194 if (sig->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class)) {
2195 m = mono_marshal_get_remoting_invoke_with_check (method);
2197 add_method (acfg, m);
2202 /* delegate-invoke wrappers */
2203 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
2206 token = MONO_TOKEN_TYPE_DEF | (i + 1);
2207 klass = mono_class_get (acfg->image, token);
2209 if (klass->delegate && klass != mono_defaults.delegate_class && klass != mono_defaults.multicastdelegate_class && !klass->generic_container) {
2210 method = mono_get_delegate_invoke (klass);
2212 m = mono_marshal_get_delegate_invoke (method, NULL);
2214 add_method (acfg, m);
2216 method = mono_class_get_method_from_name_flags (klass, "BeginInvoke", -1, 0);
2217 add_method (acfg, mono_marshal_get_delegate_begin_invoke (method));
2219 method = mono_class_get_method_from_name_flags (klass, "EndInvoke", -1, 0);
2220 add_method (acfg, mono_marshal_get_delegate_end_invoke (method));
2224 /* Synchronized wrappers */
2225 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2226 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2227 method = mono_get_method (acfg->image, token, NULL);
2229 if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED && !method->is_generic)
2230 add_method (acfg, mono_marshal_get_synchronized_wrapper (method));
2233 /* pinvoke wrappers */
2234 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2236 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2238 method = mono_get_method (acfg->image, token, NULL);
2240 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2241 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
2242 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
2246 /* native-to-managed wrappers */
2247 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2249 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2250 MonoCustomAttrInfo *cattr;
2253 method = mono_get_method (acfg->image, token, NULL);
2256 * Only generate native-to-managed wrappers for methods which have an
2257 * attribute named MonoPInvokeCallbackAttribute. We search for the attribute by
2258 * name to avoid defining a new assembly to contain it.
2260 cattr = mono_custom_attrs_from_method (method);
2263 for (j = 0; j < cattr->num_attrs; ++j)
2264 if (cattr->attrs [j].ctor && !strcmp (cattr->attrs [j].ctor->klass->name, "MonoPInvokeCallbackAttribute"))
2266 if (j < cattr->num_attrs) {
2267 MonoCustomAttrEntry *e = &cattr->attrs [j];
2268 MonoMethodSignature *sig = mono_method_signature (e->ctor);
2269 const char *p = (const char*)e->data;
2275 g_assert (method->flags & METHOD_ATTRIBUTE_STATIC);
2277 g_assert (sig->param_count == 1);
2278 g_assert (sig->params [0]->type == MONO_TYPE_CLASS && !strcmp (mono_class_from_mono_type (sig->params [0])->name, "Type"));
2281 * Decode the cattr manually since we can't create objects
2282 * during aot compilation.
2288 /* From load_cattr_value () in reflection.c */
2289 slen = mono_metadata_decode_value (p, &p);
2290 n = g_memdup (p, slen + 1);
2292 t = mono_reflection_type_from_name (n, acfg->image);
2296 klass = mono_class_from_mono_type (t);
2297 g_assert (klass->parent == mono_defaults.multicastdelegate_class);
2299 add_method (acfg, mono_marshal_get_managed_wrapper (method, klass, NULL));
2303 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2304 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
2305 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
2309 /* StructureToPtr/PtrToStructure wrappers */
2310 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
2313 token = MONO_TOKEN_TYPE_DEF | (i + 1);
2314 klass = mono_class_get (acfg->image, token);
2316 if (klass->valuetype && !klass->generic_container && can_marshal_struct (klass)) {
2317 add_method (acfg, mono_marshal_get_struct_to_ptr (klass));
2318 add_method (acfg, mono_marshal_get_ptr_to_struct (klass));
2324 has_type_vars (MonoClass *klass)
2326 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
2329 return has_type_vars (klass->element_class);
2330 if (klass->generic_class) {
2331 MonoGenericContext *context = &klass->generic_class->context;
2332 if (context->class_inst) {
2335 for (i = 0; i < context->class_inst->type_argc; ++i)
2336 if (has_type_vars (mono_class_from_mono_type (context->class_inst->type_argv [i])))
2344 method_has_type_vars (MonoMethod *method)
2346 if (has_type_vars (method->klass))
2349 if (method->is_inflated) {
2350 MonoGenericContext *context = mono_method_get_context (method);
2351 if (context->method_inst) {
2354 for (i = 0; i < context->method_inst->type_argc; ++i)
2355 if (has_type_vars (mono_class_from_mono_type (context->method_inst->type_argv [i])))
2363 * add_generic_class:
2365 * Add all methods of a generic class.
2368 add_generic_class (MonoAotCompile *acfg, MonoClass *klass)
2373 mono_class_init (klass);
2375 if (klass->generic_class && klass->generic_class->context.class_inst->is_open)
2378 if (has_type_vars (klass))
2381 if (!klass->generic_class && !klass->rank)
2385 while ((method = mono_class_get_methods (klass, &iter))) {
2386 if (mono_method_is_generic_sharable_impl (method, FALSE))
2390 if (method->is_generic)
2395 * FIXME: Instances which are referenced by these methods are not added,
2396 * for example Array.Resize<int> for List<int>.Add ().
2398 add_extra_method (acfg, method);
2401 if (klass->delegate) {
2402 method = mono_get_delegate_invoke (klass);
2404 method = mono_marshal_get_delegate_invoke (method, NULL);
2406 add_method (acfg, method);
2410 * For ICollection<T>, add instances of the helper methods
2411 * in Array, since a T[] could be cast to ICollection<T>.
2413 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") &&
2414 (!strcmp(klass->name, "ICollection`1") || !strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IList`1") || !strcmp (klass->name, "IEnumerator`1"))) {
2415 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
2416 MonoClass *array_class = mono_bounded_array_class_get (tclass, 1, FALSE);
2420 if (!strcmp (klass->name, "IEnumerator`1"))
2421 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, "IEnumerable`1");
2423 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
2425 /* Add the T[]/InternalEnumerator class */
2426 if (!strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IEnumerator`1")) {
2430 while ((nclass = mono_class_get_nested_types (array_class->parent, &iter))) {
2431 if (!strcmp (nclass->name, "InternalEnumerator`1"))
2435 nclass = mono_class_inflate_generic_class (nclass, mono_generic_class_get_context (klass->generic_class));
2436 add_generic_class (acfg, nclass);
2440 while ((method = mono_class_get_methods (array_class, &iter))) {
2441 if (strstr (method->name, name_prefix)) {
2442 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
2443 add_extra_method (acfg, m);
2447 g_free (name_prefix);
2450 /* Add an instance of GenericComparer<T> which is created dynamically by Comparer<T> */
2451 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "Comparer`1")) {
2452 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
2453 MonoClass *icomparable, *gcomparer;
2454 MonoGenericContext ctx;
2455 MonoType *args [16];
2457 memset (&ctx, 0, sizeof (ctx));
2459 icomparable = mono_class_from_name (mono_defaults.corlib, "System", "IComparable`1");
2460 g_assert (icomparable);
2461 args [0] = &tclass->byval_arg;
2462 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2464 if (mono_class_is_assignable_from (mono_class_inflate_generic_class (icomparable, &ctx), tclass)) {
2465 gcomparer = mono_class_from_name (mono_defaults.corlib, "System.Collections.Generic", "GenericComparer`1");
2466 g_assert (gcomparer);
2467 add_generic_class (acfg, mono_class_inflate_generic_class (gcomparer, &ctx));
2473 add_instances_of (MonoAotCompile *acfg, MonoClass *klass, MonoType **insts, int ninsts)
2476 MonoGenericContext ctx;
2477 MonoType *args [16];
2479 memset (&ctx, 0, sizeof (ctx));
2481 for (i = 0; i < ninsts; ++i) {
2482 args [0] = insts [i];
2483 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2484 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2489 * add_generic_instances:
2491 * Add instances referenced by the METHODSPEC/TYPESPEC table.
2494 add_generic_instances (MonoAotCompile *acfg)
2499 MonoMethodHeader *header;
2500 MonoMethodSignature *sig;
2501 MonoGenericContext *context;
2503 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHODSPEC].rows; ++i) {
2504 token = MONO_TOKEN_METHOD_SPEC | (i + 1);
2505 method = mono_get_method (acfg->image, token, NULL);
2507 context = mono_method_get_context (method);
2508 if (context && ((context->class_inst && context->class_inst->is_open) ||
2509 (context->method_inst && context->method_inst->is_open)))
2512 if (method->klass->image != acfg->image)
2515 if (mono_method_is_generic_sharable_impl (method, FALSE))
2519 add_extra_method (acfg, method);
2522 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
2525 token = MONO_TOKEN_TYPE_SPEC | (i + 1);
2527 klass = mono_class_get (acfg->image, token);
2528 if (!klass || klass->rank)
2531 add_generic_class (acfg, klass);
2534 /* Add types of args/locals */
2535 for (i = 0; i < acfg->methods->len; ++i) {
2538 method = g_ptr_array_index (acfg->methods, i);
2540 sig = mono_method_signature (method);
2543 for (j = 0; j < sig->param_count; ++j)
2544 if (sig->params [j]->type == MONO_TYPE_GENERICINST)
2545 add_generic_class (acfg, mono_class_from_mono_type (sig->params [j]));
2548 header = mono_method_get_header (method);
2551 for (j = 0; j < header->num_locals; ++j)
2552 if (header->locals [j]->type == MONO_TYPE_GENERICINST)
2553 add_generic_class (acfg, mono_class_from_mono_type (header->locals [j]));
2557 if (acfg->image == mono_defaults.corlib) {
2559 MonoType *insts [256];
2562 insts [ninsts ++] = &mono_defaults.byte_class->byval_arg;
2563 insts [ninsts ++] = &mono_defaults.sbyte_class->byval_arg;
2564 insts [ninsts ++] = &mono_defaults.int16_class->byval_arg;
2565 insts [ninsts ++] = &mono_defaults.uint16_class->byval_arg;
2566 insts [ninsts ++] = &mono_defaults.int32_class->byval_arg;
2567 insts [ninsts ++] = &mono_defaults.uint32_class->byval_arg;
2568 insts [ninsts ++] = &mono_defaults.int64_class->byval_arg;
2569 insts [ninsts ++] = &mono_defaults.uint64_class->byval_arg;
2570 insts [ninsts ++] = &mono_defaults.single_class->byval_arg;
2571 insts [ninsts ++] = &mono_defaults.double_class->byval_arg;
2572 insts [ninsts ++] = &mono_defaults.char_class->byval_arg;
2573 insts [ninsts ++] = &mono_defaults.boolean_class->byval_arg;
2575 /* Add GenericComparer<T> instances for primitive types for Enum.ToString () */
2576 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericComparer`1");
2578 add_instances_of (acfg, klass, insts, ninsts);
2579 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericEqualityComparer`1");
2581 add_instances_of (acfg, klass, insts, ninsts);
2583 /* Add instances of the array generic interfaces for primitive types */
2584 /* This will add instances of the InternalArray_ helper methods in Array too */
2585 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "ICollection`1");
2587 add_instances_of (acfg, klass, insts, ninsts);
2588 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "IList`1");
2590 add_instances_of (acfg, klass, insts, ninsts);
2591 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "IEnumerable`1");
2593 add_instances_of (acfg, klass, insts, ninsts);
2596 * Add a managed-to-native wrapper of Array.GetGenericValueImpl<object>, which is
2597 * used for all instances of GetGenericValueImpl by the AOT runtime.
2600 MonoGenericContext ctx;
2601 MonoType *args [16];
2602 MonoMethod *get_method;
2603 MonoClass *array_klass = mono_array_class_get (mono_defaults.object_class, 1)->parent;
2605 get_method = mono_class_get_method_from_name (array_klass, "GetGenericValueImpl", 2);
2608 memset (&ctx, 0, sizeof (ctx));
2609 args [0] = &mono_defaults.object_class->byval_arg;
2610 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
2611 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (get_method, &ctx), TRUE, TRUE));
2618 * is_direct_callable:
2620 * Return whenever the method identified by JI is directly callable without
2621 * going through the PLT.
2624 is_direct_callable (MonoAotCompile *acfg, MonoMethod *method, MonoJumpInfo *patch_info)
2626 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
2627 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
2629 gboolean direct_callable = TRUE;
2631 if (direct_callable && !(!callee_cfg->has_got_slots && (callee_cfg->method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)))
2632 direct_callable = FALSE;
2633 if ((callee_cfg->method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) && (!method || method->wrapper_type != MONO_WRAPPER_SYNCHRONIZED))
2634 // FIXME: Maybe call the wrapper directly ?
2635 direct_callable = FALSE;
2637 if (direct_callable)
2646 * emit_and_reloc_code:
2648 * Emit the native code in CODE, handling relocations along the way. If GOT_ONLY
2649 * is true, calls are made through the GOT too. This is used for emitting trampolines
2650 * in full-aot mode, since calls made from trampolines couldn't go through the PLT,
2651 * since trampolines are needed to make PTL work.
2654 emit_and_reloc_code (MonoAotCompile *acfg, MonoMethod *method, guint8 *code, guint32 code_len, MonoJumpInfo *relocs, gboolean got_only)
2656 int i, pindex, start_index, method_index;
2658 MonoJumpInfo *patch_info;
2659 MonoMethodHeader *header;
2660 gboolean skip, direct_call;
2662 char direct_call_target [128];
2665 header = mono_method_get_header (method);
2667 method_index = get_method_index (acfg, method);
2670 /* Collect and sort relocations */
2671 patches = g_ptr_array_new ();
2672 for (patch_info = relocs; patch_info; patch_info = patch_info->next)
2673 g_ptr_array_add (patches, patch_info);
2674 g_ptr_array_sort (patches, compare_patches);
2677 for (i = 0; i < code_len; i++) {
2679 for (pindex = start_index; pindex < patches->len; ++pindex) {
2680 patch_info = g_ptr_array_index (patches, pindex);
2681 if (patch_info->ip.i >= i)
2685 #ifdef MONO_ARCH_AOT_SUPPORTED
2687 if (patch_info && (patch_info->ip.i == i) && (pindex < patches->len)) {
2688 start_index = pindex;
2690 switch (patch_info->type) {
2691 case MONO_PATCH_INFO_NONE:
2693 case MONO_PATCH_INFO_GOT_OFFSET: {
2696 arch_emit_got_offset (acfg, code + i, &code_size);
2699 patch_info->type = MONO_PATCH_INFO_NONE;
2704 * If this patch is a call, try emitting a direct call instead of
2705 * through a PLT entry. This is possible if the called method is in
2706 * the same assembly and requires no initialization.
2708 direct_call = FALSE;
2709 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
2710 if (!got_only && is_direct_callable (acfg, method, patch_info)) {
2711 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
2712 //printf ("DIRECT: %s %s\n", method ? mono_method_full_name (method, TRUE) : "", mono_method_full_name (callee_cfg->method, TRUE));
2714 sprintf (direct_call_target, callee_cfg->asm_symbol);
2715 patch_info->type = MONO_PATCH_INFO_NONE;
2716 acfg->stats.direct_calls ++;
2719 acfg->stats.all_calls ++;
2722 if (!got_only && !direct_call) {
2723 int plt_offset = get_plt_offset (acfg, patch_info);
2724 if (plt_offset != -1) {
2725 /* This patch has a PLT entry, so we must emit a call to the PLT entry */
2727 sprintf (direct_call_target, "%s%sp_%d", acfg->llvm_label_prefix, acfg->temp_prefix, plt_offset);
2729 /* Nullify the patch */
2730 patch_info->type = MONO_PATCH_INFO_NONE;
2737 arch_emit_direct_call (acfg, direct_call_target, &call_size);
2742 got_slot = get_got_offset (acfg, patch_info);
2744 arch_emit_got_access (acfg, code + i, got_slot, &code_size);
2751 #endif /* MONO_ARCH_AOT_SUPPORTED */
2754 /* Find next patch */
2756 for (pindex = start_index; pindex < patches->len; ++pindex) {
2757 patch_info = g_ptr_array_index (patches, pindex);
2758 if (patch_info->ip.i >= i)
2762 /* Try to emit multiple bytes at once */
2763 if (pindex < patches->len && patch_info->ip.i > i) {
2764 emit_bytes (acfg, code + i, patch_info->ip.i - i);
2765 i = patch_info->ip.i - 1;
2767 emit_bytes (acfg, code + i, 1);
2776 * Modify SYMBOL so it only includes characters permissible in symbols.
2779 sanitize_symbol (char *symbol)
2781 int i, len = strlen (symbol);
2783 for (i = 0; i < len; ++i)
2784 if (!isalnum (symbol [i]) && (symbol [i] != '_'))
2789 get_debug_sym (MonoMethod *method, const char *prefix, GHashTable *cache)
2791 char *name1, *name2, *cached;
2792 int i, j, len, count;
2794 name1 = mono_method_full_name (method, TRUE);
2795 len = strlen (name1);
2796 name2 = malloc (strlen (prefix) + len + 16);
2797 memcpy (name2, prefix, strlen (prefix));
2798 j = strlen (prefix);
2799 for (i = 0; i < len; ++i) {
2800 if (isalnum (name1 [i])) {
2801 name2 [j ++] = name1 [i];
2802 } else if (name1 [i] == ' ' && name1 [i + 1] == '(' && name1 [i + 2] == ')') {
2804 } else if (name1 [i] == ',' && name1 [i + 1] == ' ') {
2807 } else if (name1 [i] == '(' || name1 [i] == ')' || name1 [i] == '>') {
2816 while (g_hash_table_lookup (cache, name2)) {
2817 sprintf (name2 + j, "_%d", count);
2821 cached = g_strdup (name2);
2822 g_hash_table_insert (cache, cached, cached);
2828 emit_method_code (MonoAotCompile *acfg, MonoCompile *cfg)
2833 char *debug_sym = NULL;
2835 int func_alignment = AOT_FUNC_ALIGNMENT;
2836 MonoMethodHeader *header;
2838 method = cfg->orig_method;
2839 code = cfg->native_code;
2840 header = mono_method_get_header (method);
2842 method_index = get_method_index (acfg, method);
2844 /* Emit unbox trampoline */
2845 if (acfg->aot_opts.full_aot && cfg->orig_method->klass->valuetype && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
2846 char call_target [256];
2848 if (!method->wrapper_type && !method->is_inflated) {
2849 g_assert (method->token);
2850 sprintf (symbol, "ut_%d", mono_metadata_token_index (method->token) - 1);
2852 sprintf (symbol, "ut_e_%d", get_method_index (acfg, method));
2855 emit_section_change (acfg, ".text", 0);
2856 emit_global (acfg, symbol, TRUE);
2857 emit_label (acfg, symbol);
2859 sprintf (call_target, "%s", cfg->asm_symbol);
2861 arch_emit_unbox_trampoline (acfg, cfg->orig_method, cfg->generic_sharing_context, call_target);
2864 /* Make the labels local */
2865 sprintf (symbol, "%s", cfg->asm_symbol);
2867 emit_section_change (acfg, ".text", 0);
2868 emit_alignment (acfg, func_alignment);
2869 emit_label (acfg, symbol);
2871 if (acfg->aot_opts.write_symbols) {
2873 * Write a C style symbol for every method, this has two uses:
2874 * - it works on platforms where the dwarf debugging info is not
2876 * - it allows the setting of breakpoints of aot-ed methods.
2878 debug_sym = get_debug_sym (method, "", acfg->method_label_hash);
2880 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
2881 emit_local_symbol (acfg, debug_sym, symbol, TRUE);
2882 emit_label (acfg, debug_sym);
2885 if (cfg->verbose_level > 0)
2886 g_print ("Method %s emitted as %s\n", mono_method_full_name (method, TRUE), symbol);
2888 acfg->stats.code_size += cfg->code_len;
2890 acfg->cfgs [method_index]->got_offset = acfg->got_offset;
2892 emit_and_reloc_code (acfg, method, code, cfg->code_len, cfg->patch_info, FALSE);
2896 if (acfg->aot_opts.write_symbols) {
2897 emit_symbol_size (acfg, debug_sym, ".");
2901 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
2902 emit_label (acfg, symbol);
2908 * Encode PATCH_INFO into its disk representation.
2911 encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info, guint8 *buf, guint8 **endbuf)
2915 switch (patch_info->type) {
2916 case MONO_PATCH_INFO_NONE:
2918 case MONO_PATCH_INFO_IMAGE:
2919 encode_value (get_image_index (acfg, patch_info->data.image), p, &p);
2921 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
2923 case MONO_PATCH_INFO_METHOD_REL:
2924 encode_value ((gint)patch_info->data.offset, p, &p);
2926 case MONO_PATCH_INFO_SWITCH: {
2927 gpointer *table = (gpointer *)patch_info->data.table->table;
2930 encode_value (patch_info->data.table->table_size, p, &p);
2931 for (k = 0; k < patch_info->data.table->table_size; k++)
2932 encode_value ((int)(gssize)table [k], p, &p);
2935 case MONO_PATCH_INFO_METHODCONST:
2936 case MONO_PATCH_INFO_METHOD:
2937 case MONO_PATCH_INFO_METHOD_JUMP:
2938 case MONO_PATCH_INFO_ICALL_ADDR:
2939 case MONO_PATCH_INFO_METHOD_RGCTX:
2940 encode_method_ref (acfg, patch_info->data.method, p, &p);
2942 case MONO_PATCH_INFO_INTERNAL_METHOD:
2943 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
2944 guint32 len = strlen (patch_info->data.name);
2946 encode_value (len, p, &p);
2948 memcpy (p, patch_info->data.name, len);
2953 case MONO_PATCH_INFO_LDSTR: {
2954 guint32 image_index = get_image_index (acfg, patch_info->data.token->image);
2955 guint32 token = patch_info->data.token->token;
2956 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_STRING);
2957 encode_value (image_index, p, &p);
2958 encode_value (patch_info->data.token->token - MONO_TOKEN_STRING, p, &p);
2961 case MONO_PATCH_INFO_RVA:
2962 case MONO_PATCH_INFO_DECLSEC:
2963 case MONO_PATCH_INFO_LDTOKEN:
2964 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2965 encode_value (get_image_index (acfg, patch_info->data.token->image), p, &p);
2966 encode_value (patch_info->data.token->token, p, &p);
2967 encode_value (patch_info->data.token->has_context, p, &p);
2968 if (patch_info->data.token->has_context)
2969 encode_generic_context (acfg, &patch_info->data.token->context, p, &p);
2971 case MONO_PATCH_INFO_EXC_NAME: {
2972 MonoClass *ex_class;
2975 mono_class_from_name (mono_defaults.exception_class->image,
2976 "System", patch_info->data.target);
2977 g_assert (ex_class);
2978 encode_klass_ref (acfg, ex_class, p, &p);
2981 case MONO_PATCH_INFO_R4:
2982 encode_value (*((guint32 *)patch_info->data.target), p, &p);
2984 case MONO_PATCH_INFO_R8:
2985 encode_value (((guint32 *)patch_info->data.target) [MINI_LS_WORD_IDX], p, &p);
2986 encode_value (((guint32 *)patch_info->data.target) [MINI_MS_WORD_IDX], p, &p);
2988 case MONO_PATCH_INFO_VTABLE:
2989 case MONO_PATCH_INFO_CLASS:
2990 case MONO_PATCH_INFO_IID:
2991 case MONO_PATCH_INFO_ADJUSTED_IID:
2992 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
2994 case MONO_PATCH_INFO_CLASS_INIT:
2995 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
2996 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
2998 case MONO_PATCH_INFO_FIELD:
2999 case MONO_PATCH_INFO_SFLDA:
3000 encode_field_info (acfg, patch_info->data.field, p, &p);
3002 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3004 case MONO_PATCH_INFO_RGCTX_FETCH: {
3005 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
3007 encode_method_ref (acfg, entry->method, p, &p);
3008 encode_value (entry->in_mrgctx, p, &p);
3009 encode_value (entry->info_type, p, &p);
3010 encode_value (entry->data->type, p, &p);
3011 encode_patch (acfg, entry->data, p, &p);
3014 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
3015 case MONO_PATCH_INFO_MONITOR_ENTER:
3016 case MONO_PATCH_INFO_MONITOR_EXIT:
3017 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3019 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
3020 encode_method_ref (acfg, patch_info->data.imt_tramp->method, p, &p);
3021 encode_value (patch_info->data.imt_tramp->vt_offset, p, &p);
3024 g_warning ("unable to handle jump info %d", patch_info->type);
3025 g_assert_not_reached ();
3032 encode_patch_list (MonoAotCompile *acfg, GPtrArray *patches, int n_patches, int first_got_offset, guint8 *buf, guint8 **endbuf)
3035 guint32 pindex, offset;
3036 MonoJumpInfo *patch_info;
3038 encode_value (n_patches, p, &p);
3040 for (pindex = 0; pindex < patches->len; ++pindex) {
3041 patch_info = g_ptr_array_index (patches, pindex);
3043 if (patch_info->type == MONO_PATCH_INFO_NONE || patch_info->type == MONO_PATCH_INFO_BB)
3047 offset = get_got_offset (acfg, patch_info);
3048 encode_value (offset, p, &p);
3055 emit_method_info (MonoAotCompile *acfg, MonoCompile *cfg)
3059 int pindex, buf_size, n_patches;
3062 MonoJumpInfo *patch_info;
3063 MonoMethodHeader *header;
3064 guint32 method_index;
3066 guint32 first_got_offset;
3068 method = cfg->orig_method;
3069 code = cfg->native_code;
3070 header = mono_method_get_header (method);
3072 method_index = get_method_index (acfg, method);
3074 /* Sort relocations */
3075 patches = g_ptr_array_new ();
3076 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next)
3077 g_ptr_array_add (patches, patch_info);
3078 g_ptr_array_sort (patches, compare_patches);
3080 first_got_offset = acfg->cfgs [method_index]->got_offset;
3082 /**********************/
3083 /* Encode method info */
3084 /**********************/
3086 buf_size = (patches->len < 1000) ? 40960 : 40960 + (patches->len * 64);
3087 p = buf = g_malloc (buf_size);
3089 if (mono_class_get_cctor (method->klass))
3090 encode_klass_ref (acfg, method->klass, p, &p);
3092 /* Not needed when loading the method */
3093 encode_value (0, p, &p);
3096 if (cfg->opt & MONO_OPT_SHARED) {
3097 encode_value (g_list_length (cfg->ldstr_list), p, &p);
3098 for (l = cfg->ldstr_list; l; l = l->next) {
3099 encode_value ((long)l->data, p, &p);
3103 /* Used only in shared mode */
3104 g_assert (!cfg->ldstr_list);
3107 for (pindex = 0; pindex < patches->len; ++pindex) {
3108 patch_info = g_ptr_array_index (patches, pindex);
3110 if ((patch_info->type == MONO_PATCH_INFO_GOT_OFFSET) ||
3111 (patch_info->type == MONO_PATCH_INFO_NONE)) {
3112 patch_info->type = MONO_PATCH_INFO_NONE;
3117 if ((patch_info->type == MONO_PATCH_INFO_IMAGE) && (patch_info->data.image == acfg->image)) {
3118 /* Stored in a GOT slot initialized at module load time */
3119 patch_info->type = MONO_PATCH_INFO_NONE;
3123 if (is_plt_patch (patch_info)) {
3124 /* Calls are made through the PLT */
3125 patch_info->type = MONO_PATCH_INFO_NONE;
3133 g_assert (cfg->has_got_slots);
3135 encode_patch_list (acfg, patches, n_patches, first_got_offset, p, &p);
3137 acfg->stats.info_size += p - buf;
3139 g_assert (p - buf < buf_size);
3141 cfg->method_info_offset = add_to_blob (acfg, buf, p - buf);
3146 get_unwind_info_offset (MonoAotCompile *acfg, guint8 *encoded, guint32 encoded_len)
3148 guint32 cache_index;
3151 /* Reuse the unwind module to canonize and store unwind info entries */
3152 cache_index = mono_cache_unwind_info (encoded, encoded_len);
3154 /* Use +/- 1 to distinguish 0s from missing entries */
3155 offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1)));
3163 * It would be easier to use assembler symbols, but the caller needs an
3166 offset = acfg->unwind_info_offset;
3167 g_hash_table_insert (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1), GUINT_TO_POINTER (offset + 1));
3168 g_ptr_array_add (acfg->unwind_ops, GUINT_TO_POINTER (cache_index));
3171 encode_value (encoded_len, p, &p);
3173 acfg->unwind_info_offset += encoded_len + (p - buf);
3179 emit_exception_debug_info (MonoAotCompile *acfg, MonoCompile *cfg)
3182 int i, k, buf_size, method_index;
3183 guint32 debug_info_size;
3185 MonoMethodHeader *header;
3186 guint8 *p, *buf, *debug_info;
3187 MonoJitInfo *jinfo = cfg->jit_info;
3189 gboolean use_unwind_ops = FALSE;
3190 MonoSeqPointInfo *seq_points;
3192 method = cfg->orig_method;
3193 code = cfg->native_code;
3194 header = mono_method_get_header (method);
3196 method_index = get_method_index (acfg, method);
3198 if (!acfg->aot_opts.nodebug) {
3199 mono_debug_serialize_debug_info (cfg, &debug_info, &debug_info_size);
3202 debug_info_size = 0;
3205 seq_points = cfg->seq_point_info;
3207 buf_size = header->num_clauses * 256 + debug_info_size + 1024 + (seq_points ? (seq_points->len * 64) : 0);
3208 p = buf = g_malloc (buf_size);
3210 #ifdef MONO_ARCH_HAVE_XP_UNWIND
3211 use_unwind_ops = cfg->unwind_ops != NULL;
3214 flags = (jinfo->has_generic_jit_info ? 1 : 0) | (use_unwind_ops ? 2 : 0) | (header->num_clauses ? 4 : 0) | (seq_points ? 8 : 0) | (cfg->compile_llvm ? 16 : 0);
3216 encode_value (flags, p, &p);
3218 if (use_unwind_ops) {
3219 guint32 encoded_len;
3223 * This is a duplicate of the data in the .debug_frame section, but that
3224 * section cannot be accessed using the dl interface.
3226 encoded = mono_unwind_ops_encode (cfg->unwind_ops, &encoded_len);
3227 encode_value (get_unwind_info_offset (acfg, encoded, encoded_len), p, &p);
3230 encode_value (jinfo->used_regs, p, &p);
3233 /* Exception table */
3234 if (jinfo->num_clauses)
3235 encode_value (jinfo->num_clauses, p, &p);
3237 for (k = 0; k < jinfo->num_clauses; ++k) {
3238 MonoJitExceptionInfo *ei = &jinfo->clauses [k];
3240 encode_value (ei->flags, p, &p);
3241 encode_value (ei->exvar_offset, p, &p);
3243 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER)
3244 encode_value ((gint)((guint8*)ei->data.filter - code), p, &p);
3246 if (ei->data.catch_class) {
3247 encode_value (1, p, &p);
3248 encode_klass_ref (acfg, ei->data.catch_class, p, &p);
3250 encode_value (0, p, &p);
3254 encode_value ((gint)((guint8*)ei->try_start - code), p, &p);
3255 encode_value ((gint)((guint8*)ei->try_end - code), p, &p);
3256 encode_value ((gint)((guint8*)ei->handler_start - code), p, &p);
3259 if (jinfo->has_generic_jit_info) {
3260 MonoGenericJitInfo *gi = mono_jit_info_get_generic_jit_info (jinfo);
3262 encode_value (gi->has_this ? 1 : 0, p, &p);
3263 encode_value (gi->this_reg, p, &p);
3264 encode_value (gi->this_offset, p, &p);
3267 * Need to encode jinfo->method too, since it is not equal to 'method'
3268 * when using generic sharing.
3270 encode_method_ref (acfg, jinfo->method, p, &p);
3274 int il_offset, native_offset, last_il_offset, last_native_offset, j;
3276 encode_value (seq_points->len, p, &p);
3277 last_il_offset = last_native_offset = 0;
3278 for (i = 0; i < seq_points->len; ++i) {
3279 SeqPoint *sp = &seq_points->seq_points [i];
3280 il_offset = sp->il_offset;
3281 native_offset = sp->native_offset;
3282 encode_value (il_offset - last_il_offset, p, &p);
3283 encode_value (native_offset - last_native_offset, p, &p);
3284 last_il_offset = il_offset;
3285 last_native_offset = native_offset;
3287 encode_value (sp->next_len, p, &p);
3288 for (j = 0; j < sp->next_len; ++j)
3289 encode_value (sp->next [j], p, &p);
3294 g_assert (debug_info_size < buf_size);
3296 encode_value (debug_info_size, p, &p);
3297 if (debug_info_size) {
3298 memcpy (p, debug_info, debug_info_size);
3299 p += debug_info_size;
3300 g_free (debug_info);
3303 acfg->stats.ex_info_size += p - buf;
3305 g_assert (p - buf < buf_size);
3308 cfg->ex_info_offset = add_to_blob (acfg, buf, p - buf);
3313 emit_klass_info (MonoAotCompile *acfg, guint32 token)
3315 MonoClass *klass = mono_class_get (acfg->image, token);
3317 int i, buf_size, res;
3318 gboolean no_special_static, cant_encode;
3319 gpointer iter = NULL;
3321 buf_size = 10240 + (klass->vtable_size * 16);
3322 p = buf = g_malloc (buf_size);
3326 mono_class_init (klass);
3328 mono_class_get_nested_types (klass, &iter);
3329 g_assert (klass->nested_classes_inited);
3331 mono_class_setup_vtable (klass);
3334 * Emit all the information which is required for creating vtables so
3335 * the runtime does not need to create the MonoMethod structures which
3336 * take up a lot of space.
3339 no_special_static = !mono_class_has_special_static_fields (klass);
3341 /* Check whenever we have enough info to encode the vtable */
3342 cant_encode = FALSE;
3343 for (i = 0; i < klass->vtable_size; ++i) {
3344 MonoMethod *cm = klass->vtable [i];
3346 if (cm && mono_method_signature (cm)->is_inflated && !g_hash_table_lookup (acfg->token_info_hash, cm))
3350 if (klass->generic_container || cant_encode) {
3351 encode_value (-1, p, &p);
3353 encode_value (klass->vtable_size, p, &p);
3354 encode_value ((klass->generic_container ? (1 << 8) : 0) | (no_special_static << 7) | (klass->has_static_refs << 6) | (klass->has_references << 5) | ((klass->blittable << 4) | ((klass->ext && klass->ext->nested_classes) ? 1 : 0) << 3) | (klass->has_cctor << 2) | (klass->has_finalize << 1) | klass->ghcimpl, p, &p);
3355 if (klass->has_cctor)
3356 encode_method_ref (acfg, mono_class_get_cctor (klass), p, &p);
3357 if (klass->has_finalize)
3358 encode_method_ref (acfg, mono_class_get_finalizer (klass), p, &p);
3360 encode_value (klass->instance_size, p, &p);
3361 encode_value (mono_class_data_size (klass), p, &p);
3362 encode_value (klass->packing_size, p, &p);
3363 encode_value (klass->min_align, p, &p);
3365 for (i = 0; i < klass->vtable_size; ++i) {
3366 MonoMethod *cm = klass->vtable [i];
3369 encode_method_ref (acfg, cm, p, &p);
3371 encode_value (0, p, &p);
3375 acfg->stats.class_info_size += p - buf;
3377 g_assert (p - buf < buf_size);
3378 res = add_to_blob (acfg, buf, p - buf);
3385 * Calls made from AOTed code are routed through a table of jumps similar to the
3386 * ELF PLT (Program Linkage Table). The differences are the following:
3387 * - the ELF PLT entries make an indirect jump though the GOT so they expect the
3388 * GOT pointer to be in EBX. We want to avoid this, so our table contains direct
3389 * jumps. This means the jumps need to be patched when the address of the callee is
3390 * known. Initially the PLT entries jump to code which transfers control to the
3391 * AOT runtime through the first PLT entry.
3394 emit_plt (MonoAotCompile *acfg)
3400 cache = g_hash_table_new (g_str_hash, g_str_equal);
3403 sprintf (symbol, "plt");
3405 emit_section_change (acfg, ".text", 0);
3406 emit_global (acfg, symbol, TRUE);
3408 /* This section will be made read-write by the AOT loader */
3409 emit_alignment (acfg, mono_pagesize ());
3411 emit_alignment (acfg, 16);
3413 emit_label (acfg, symbol);
3414 emit_label (acfg, acfg->plt_symbol);
3416 for (i = 0; i < acfg->plt_offset; ++i) {
3418 char *debug_sym = NULL;
3421 sprintf (label, "%s%sp_%d", acfg->llvm_label_prefix, acfg->temp_prefix, i);
3425 * If the target is directly callable, alias the plt symbol to point to
3427 * FIXME: Use this to simplify emit_and_reloc_code ().
3428 * FIXME: Avoid the got slot.
3429 * FIXME: Add support to the binary writer.
3431 ji = g_hash_table_lookup (acfg->plt_offset_to_patch, GUINT_TO_POINTER (i));
3432 if (ji && is_direct_callable (acfg, NULL, ji) && !acfg->use_bin_writer) {
3433 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, ji->data.method);
3434 fprintf (acfg->fp, "\n.set %s, %s\n", label, callee_cfg->asm_symbol);
3439 emit_label (acfg, label);
3441 if (acfg->aot_opts.write_symbols) {
3442 MonoJumpInfo *ji = g_hash_table_lookup (acfg->plt_offset_to_patch, GUINT_TO_POINTER (i));
3446 case MONO_PATCH_INFO_METHOD:
3447 debug_sym = get_debug_sym (ji->data.method, "plt_", cache);
3449 case MONO_PATCH_INFO_INTERNAL_METHOD:
3450 debug_sym = g_strdup_printf ("plt__jit_icall_%s", ji->data.name);
3452 case MONO_PATCH_INFO_CLASS_INIT:
3453 debug_sym = g_strdup_printf ("plt__class_init_%s", mono_type_get_name (&ji->data.klass->byval_arg));
3454 sanitize_symbol (debug_sym);
3456 case MONO_PATCH_INFO_RGCTX_FETCH:
3457 debug_sym = g_strdup_printf ("plt__rgctx_fetch_%d", acfg->label_generator ++);
3459 case MONO_PATCH_INFO_ICALL_ADDR: {
3460 char *s = get_debug_sym (ji->data.method, "", cache);
3462 debug_sym = g_strdup_printf ("plt__icall_native_%s", s);
3466 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
3467 debug_sym = g_strdup_printf ("plt__jit_icall_native_%s", ji->data.name);
3469 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
3470 debug_sym = g_strdup_printf ("plt__generic_class_init");
3477 emit_local_symbol (acfg, debug_sym, NULL, TRUE);
3478 emit_label (acfg, debug_sym);
3484 * The first plt entry is used to transfer code to the AOT loader.
3486 arch_emit_plt_entry (acfg, i);
3489 emit_symbol_size (acfg, debug_sym, ".");
3494 emit_symbol_size (acfg, acfg->plt_symbol, ".");
3496 sprintf (symbol, "plt_end");
3497 emit_global (acfg, symbol, TRUE);
3498 emit_label (acfg, symbol);
3500 g_hash_table_destroy (cache);
3503 static G_GNUC_UNUSED void
3504 emit_trampoline (MonoAotCompile *acfg, const char *name, guint8 *code,
3505 guint32 code_size, int got_offset, MonoJumpInfo *ji, GSList *unwind_ops)
3507 char start_symbol [256];
3509 guint32 buf_size, info_offset;
3510 MonoJumpInfo *patch_info;
3516 sprintf (start_symbol, "%s", name);
3518 emit_section_change (acfg, ".text", 0);
3519 emit_global (acfg, start_symbol, TRUE);
3520 emit_alignment (acfg, 16);
3521 emit_label (acfg, start_symbol);
3523 sprintf (symbol, "%snamed_%s", acfg->temp_prefix, name);
3524 emit_label (acfg, symbol);
3527 * The code should access everything through the GOT, so we pass
3530 emit_and_reloc_code (acfg, NULL, code, code_size, ji, TRUE);
3532 emit_symbol_size (acfg, start_symbol, ".");
3536 /* Sort relocations */
3537 patches = g_ptr_array_new ();
3538 for (patch_info = ji; patch_info; patch_info = patch_info->next)
3539 if (patch_info->type != MONO_PATCH_INFO_NONE)
3540 g_ptr_array_add (patches, patch_info);
3541 g_ptr_array_sort (patches, compare_patches);
3543 buf_size = patches->len * 128 + 128;
3544 buf = g_malloc (buf_size);
3547 encode_patch_list (acfg, patches, patches->len, got_offset, p, &p);
3548 g_assert (p - buf < buf_size);
3550 sprintf (symbol, "%s_p", name);
3552 info_offset = add_to_blob (acfg, buf, p - buf);
3554 emit_section_change (acfg, ".text", 0);
3555 emit_global (acfg, symbol, FALSE);
3556 emit_label (acfg, symbol);
3558 emit_int32 (acfg, info_offset);
3560 /* Emit debug info */
3564 sprintf (symbol, "%s", name);
3565 sprintf (symbol2, "%snamed_%s", acfg->temp_prefix, name);
3568 mono_dwarf_writer_emit_trampoline (acfg->dwarf, symbol, symbol2, NULL, NULL, code_size, unwind_ops);
3573 emit_trampolines (MonoAotCompile *acfg)
3576 int i, tramp_got_offset;
3577 MonoAotTrampoline ntype;
3578 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
3586 if (!acfg->aot_opts.full_aot)
3589 g_assert (acfg->image->assembly);
3591 /* Currently, we emit most trampolines into the mscorlib AOT image. */
3592 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
3593 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
3595 * Emit the generic trampolines.
3597 * We could save some code by treating the generic trampolines as a wrapper
3598 * method, but that approach has its own complexities, so we choose the simpler
3601 for (tramp_type = 0; tramp_type < MONO_TRAMPOLINE_NUM; ++tramp_type) {
3602 code = mono_arch_create_trampoline_code_full (tramp_type, &code_size, &ji, &unwind_ops, TRUE);
3604 /* Emit trampoline code */
3606 sprintf (symbol, "generic_trampoline_%d", tramp_type);
3608 emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, unwind_ops);
3611 code = mono_arch_get_nullified_class_init_trampoline (&code_size);
3612 emit_trampoline (acfg, "nullified_class_init_trampoline", code, code_size, acfg->got_offset, NULL, NULL);
3613 #if defined(TARGET_AMD64) && defined(MONO_ARCH_MONITOR_OBJECT_REG)
3614 code = mono_arch_create_monitor_enter_trampoline_full (&code_size, &ji, TRUE);
3615 emit_trampoline (acfg, "monitor_enter_trampoline", code, code_size, acfg->got_offset, ji, NULL);
3616 code = mono_arch_create_monitor_exit_trampoline_full (&code_size, &ji, TRUE);
3617 emit_trampoline (acfg, "monitor_exit_trampoline", code, code_size, acfg->got_offset, ji, NULL);
3620 code = mono_arch_create_generic_class_init_trampoline_full (&code_size, &ji, TRUE);
3621 emit_trampoline (acfg, "generic_class_init_trampoline", code, code_size, acfg->got_offset, ji, NULL);
3623 /* Emit the exception related code pieces */
3624 code = mono_arch_get_restore_context_full (&code_size, &ji, TRUE);
3625 emit_trampoline (acfg, "restore_context", code, code_size, acfg->got_offset, ji, NULL);
3626 code = mono_arch_get_call_filter_full (&code_size, &ji, TRUE);
3627 emit_trampoline (acfg, "call_filter", code, code_size, acfg->got_offset, ji, NULL);
3628 code = mono_arch_get_throw_exception_full (&code_size, &ji, TRUE);
3629 emit_trampoline (acfg, "throw_exception", code, code_size, acfg->got_offset, ji, NULL);
3630 code = mono_arch_get_rethrow_exception_full (&code_size, &ji, TRUE);
3631 emit_trampoline (acfg, "rethrow_exception", code, code_size, acfg->got_offset, ji, NULL);
3632 #ifdef MONO_ARCH_HAVE_THROW_EXCEPTION_BY_NAME
3633 code = mono_arch_get_throw_exception_by_name_full (&code_size, &ji, TRUE);
3634 emit_trampoline (acfg, "throw_exception_by_name", code, code_size, acfg->got_offset, ji, NULL);
3636 code = mono_arch_get_throw_corlib_exception_full (&code_size, &ji, TRUE);
3637 emit_trampoline (acfg, "throw_corlib_exception", code, code_size, acfg->got_offset, ji, NULL);
3639 #if defined(TARGET_AMD64)
3640 code = mono_arch_get_throw_pending_exception_full (&code_size, &ji, TRUE);
3641 emit_trampoline (acfg, "throw_pending_exception", code, code_size, acfg->got_offset, ji, NULL);
3644 for (i = 0; i < 128; ++i) {
3647 offset = MONO_RGCTX_SLOT_MAKE_RGCTX (i);
3648 code = mono_arch_create_rgctx_lazy_fetch_trampoline_full (offset, &code_size, &ji, TRUE);
3649 sprintf (symbol, "rgctx_fetch_trampoline_%u", offset);
3650 emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, NULL);
3652 offset = MONO_RGCTX_SLOT_MAKE_MRGCTX (i);
3653 code = mono_arch_create_rgctx_lazy_fetch_trampoline_full (offset, &code_size, &ji, TRUE);
3654 sprintf (symbol, "rgctx_fetch_trampoline_%u", offset);
3655 emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, NULL);
3661 /* delegate_invoke_impl trampolines */
3662 l = mono_arch_get_delegate_invoke_impls ();
3664 MonoAotTrampInfo *info = l->data;
3666 emit_trampoline (acfg, info->name, info->code, info->code_size, acfg->got_offset, NULL, NULL);
3671 #endif /* #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES */
3673 /* Emit trampolines which are numerous */
3676 * These include the following:
3677 * - specific trampolines
3678 * - static rgctx invoke trampolines
3680 * These trampolines have the same code, they are parameterized by GOT
3682 * They are defined in this file, in the arch_... routines instead of
3683 * in tramp-<ARCH>.c, since it is easier to do it this way.
3687 * When running in aot-only mode, we can't create specific trampolines at
3688 * runtime, so we create a few, and save them in the AOT file.
3689 * Normal trampolines embed their argument as a literal inside the
3690 * trampoline code, we can't do that here, so instead we embed an offset
3691 * which needs to be added to the trampoline address to get the address of
3692 * the GOT slot which contains the argument value.
3693 * The generated trampolines jump to the generic trampolines using another
3694 * GOT slot, which will be setup by the AOT loader to point to the
3695 * generic trampoline code of the given type.
3699 * FIXME: Maybe we should use more specific trampolines (i.e. one class init for
3703 emit_section_change (acfg, ".text", 0);
3705 tramp_got_offset = acfg->got_offset;
3707 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype) {
3709 case MONO_AOT_TRAMP_SPECIFIC:
3710 sprintf (symbol, "specific_trampolines");
3712 case MONO_AOT_TRAMP_STATIC_RGCTX:
3713 sprintf (symbol, "static_rgctx_trampolines");
3715 case MONO_AOT_TRAMP_IMT_THUNK:
3716 sprintf (symbol, "imt_thunks");
3719 g_assert_not_reached ();
3722 emit_global (acfg, symbol, TRUE);
3723 emit_alignment (acfg, 16);
3724 emit_label (acfg, symbol);
3726 acfg->trampoline_got_offset_base [ntype] = tramp_got_offset;
3728 for (i = 0; i < acfg->num_trampolines [ntype]; ++i) {
3732 case MONO_AOT_TRAMP_SPECIFIC:
3733 arch_emit_specific_trampoline (acfg, tramp_got_offset, &tramp_size);
3734 tramp_got_offset += 2;
3736 case MONO_AOT_TRAMP_STATIC_RGCTX:
3737 arch_emit_static_rgctx_trampoline (acfg, tramp_got_offset, &tramp_size);
3738 tramp_got_offset += 2;
3740 case MONO_AOT_TRAMP_IMT_THUNK:
3741 arch_emit_imt_thunk (acfg, tramp_got_offset, &tramp_size);
3742 tramp_got_offset += 1;
3745 g_assert_not_reached ();
3748 if (!acfg->trampoline_size [ntype]) {
3749 g_assert (tramp_size);
3750 acfg->trampoline_size [ntype] = tramp_size;
3755 /* Reserve some entries at the end of the GOT for our use */
3756 acfg->num_trampoline_got_entries = tramp_got_offset - acfg->got_offset;
3759 acfg->got_offset += acfg->num_trampoline_got_entries;
3763 str_begins_with (const char *str1, const char *str2)
3765 int len = strlen (str2);
3766 return strncmp (str1, str2, len) == 0;
3770 mono_aot_parse_options (const char *aot_options, MonoAotOptions *opts)
3772 gchar **args, **ptr;
3774 args = g_strsplit (aot_options ? aot_options : "", ",", -1);
3775 for (ptr = args; ptr && *ptr; ptr ++) {
3776 const char *arg = *ptr;
3778 if (str_begins_with (arg, "outfile=")) {
3779 opts->outfile = g_strdup (arg + strlen ("outfile="));
3780 } else if (str_begins_with (arg, "save-temps")) {
3781 opts->save_temps = TRUE;
3782 } else if (str_begins_with (arg, "keep-temps")) {
3783 opts->save_temps = TRUE;
3784 } else if (str_begins_with (arg, "write-symbols")) {
3785 opts->write_symbols = TRUE;
3786 } else if (str_begins_with (arg, "metadata-only")) {
3787 opts->metadata_only = TRUE;
3788 } else if (str_begins_with (arg, "bind-to-runtime-version")) {
3789 opts->bind_to_runtime_version = TRUE;
3790 } else if (str_begins_with (arg, "full")) {
3791 opts->full_aot = TRUE;
3792 } else if (str_begins_with (arg, "threads=")) {
3793 opts->nthreads = atoi (arg + strlen ("threads="));
3794 } else if (str_begins_with (arg, "static")) {
3795 opts->static_link = TRUE;
3796 opts->no_dlsym = TRUE;
3797 } else if (str_begins_with (arg, "asmonly")) {
3798 opts->asm_only = TRUE;
3799 } else if (str_begins_with (arg, "asmwriter")) {
3800 opts->asm_writer = TRUE;
3801 } else if (str_begins_with (arg, "nodebug")) {
3802 opts->nodebug = TRUE;
3803 } else if (str_begins_with (arg, "ntrampolines=")) {
3804 opts->ntrampolines = atoi (arg + strlen ("ntrampolines="));
3805 } else if (str_begins_with (arg, "nrgctx-trampolines=")) {
3806 opts->nrgctx_trampolines = atoi (arg + strlen ("nrgctx-trampolines="));
3807 } else if (str_begins_with (arg, "autoreg")) {
3808 opts->autoreg = TRUE;
3809 } else if (str_begins_with (arg, "tool-prefix=")) {
3810 opts->tool_prefix = g_strdup (arg + strlen ("tool-prefix="));
3811 } else if (str_begins_with (arg, "soft-debug")) {
3812 opts->soft_debug = TRUE;
3813 } else if (str_begins_with (arg, "print-skipped")) {
3814 opts->print_skipped_methods = TRUE;
3815 } else if (str_begins_with (arg, "stats")) {
3818 fprintf (stderr, "AOT : Unknown argument '%s'.\n", arg);
3827 add_token_info_hash (gpointer key, gpointer value, gpointer user_data)
3829 MonoMethod *method = (MonoMethod*)key;
3830 MonoJumpInfoToken *ji = (MonoJumpInfoToken*)value;
3831 MonoJumpInfoToken *new_ji = g_new0 (MonoJumpInfoToken, 1);
3832 MonoAotCompile *acfg = user_data;
3834 new_ji->image = ji->image;
3835 new_ji->token = ji->token;
3836 g_hash_table_insert (acfg->token_info_hash, method, new_ji);
3840 can_encode_class (MonoAotCompile *acfg, MonoClass *klass)
3842 if (klass->type_token)
3844 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
3847 return can_encode_class (acfg, klass->element_class);
3852 can_encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
3854 switch (patch_info->type) {
3855 case MONO_PATCH_INFO_METHOD:
3856 case MONO_PATCH_INFO_METHODCONST: {
3857 MonoMethod *method = patch_info->data.method;
3859 if (method->wrapper_type) {
3860 switch (method->wrapper_type) {
3861 case MONO_WRAPPER_NONE:
3862 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
3863 case MONO_WRAPPER_XDOMAIN_INVOKE:
3864 case MONO_WRAPPER_STFLD:
3865 case MONO_WRAPPER_LDFLD:
3866 case MONO_WRAPPER_LDFLDA:
3867 case MONO_WRAPPER_LDFLD_REMOTE:
3868 case MONO_WRAPPER_STFLD_REMOTE:
3869 case MONO_WRAPPER_STELEMREF:
3870 case MONO_WRAPPER_ISINST:
3871 case MONO_WRAPPER_PROXY_ISINST:
3872 case MONO_WRAPPER_ALLOC:
3873 case MONO_WRAPPER_REMOTING_INVOKE:
3874 case MONO_WRAPPER_UNKNOWN:
3876 case MONO_WRAPPER_MANAGED_TO_MANAGED:
3877 if (!strcmp (method->name, "ElementAddr"))
3882 //printf ("Skip (wrapper call): %d -> %s\n", patch_info->type, mono_method_full_name (patch_info->data.method, TRUE));
3886 if (!method->token) {
3887 /* The method is part of a constructed type like Int[,].Set (). */
3888 if (!g_hash_table_lookup (acfg->token_info_hash, method)) {
3889 if (method->klass->rank)
3897 case MONO_PATCH_INFO_VTABLE:
3898 case MONO_PATCH_INFO_CLASS_INIT:
3899 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3900 case MONO_PATCH_INFO_CLASS:
3901 case MONO_PATCH_INFO_IID:
3902 case MONO_PATCH_INFO_ADJUSTED_IID:
3903 if (!can_encode_class (acfg, patch_info->data.klass)) {
3904 //printf ("Skip: %s\n", mono_type_full_name (&patch_info->data.klass->byval_arg));
3908 case MONO_PATCH_INFO_RGCTX_FETCH: {
3909 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
3911 if (!can_encode_patch (acfg, entry->data))
3923 add_generic_class (MonoAotCompile *acfg, MonoClass *klass);
3928 * AOT compile a given method.
3929 * This function might be called by multiple threads, so it must be thread-safe.
3932 compile_method (MonoAotCompile *acfg, MonoMethod *method)
3935 MonoJumpInfo *patch_info;
3938 MonoMethod *wrapped;
3940 if (acfg->aot_opts.metadata_only)
3943 mono_acfg_lock (acfg);
3944 index = get_method_index (acfg, method);
3945 mono_acfg_unlock (acfg);
3947 /* fixme: maybe we can also precompile wrapper methods */
3948 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
3949 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
3950 (method->flags & METHOD_ATTRIBUTE_ABSTRACT)) {
3951 //printf ("Skip (impossible): %s\n", mono_method_full_name (method, TRUE));
3955 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
3958 wrapped = mono_marshal_method_from_wrapper (method);
3959 if (wrapped && (wrapped->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && wrapped->is_generic)
3960 // FIXME: The wrapper should be generic too, but it is not
3963 InterlockedIncrement (&acfg->stats.mcount);
3966 if (method->is_generic || method->klass->generic_container) {
3967 InterlockedIncrement (&acfg->stats.genericcount);
3972 //acfg->aot_opts.print_skipped_methods = TRUE;
3975 * Since these methods are the only ones which are compiled with
3976 * AOT support, and they are not used by runtime startup/shutdown code,
3977 * the runtime will not see AOT methods during AOT compilation,so it
3978 * does not need to support them by creating a fake GOT etc.
3980 cfg = mini_method_compile (method, acfg->opts, mono_get_root_domain (), FALSE, TRUE, 0);
3981 if (cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
3982 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3983 InterlockedIncrement (&acfg->stats.genericcount);
3986 if (cfg->exception_type != MONO_EXCEPTION_NONE) {
3987 /* Let the exception happen at runtime */
3991 if (cfg->disable_aot) {
3992 if (acfg->aot_opts.print_skipped_methods)
3993 printf ("Skip (disabled): %s\n", mono_method_full_name (method, TRUE));
3994 InterlockedIncrement (&acfg->stats.ocount);
3995 mono_destroy_compile (cfg);
3999 /* Nullify patches which need no aot processing */
4000 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4001 switch (patch_info->type) {
4002 case MONO_PATCH_INFO_LABEL:
4003 case MONO_PATCH_INFO_BB:
4004 patch_info->type = MONO_PATCH_INFO_NONE;
4011 /* Collect method->token associations from the cfg */
4012 mono_acfg_lock (acfg);
4013 g_hash_table_foreach (cfg->token_info_hash, add_token_info_hash, acfg);
4014 mono_acfg_unlock (acfg);
4017 * Check for absolute addresses.
4020 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4021 switch (patch_info->type) {
4022 case MONO_PATCH_INFO_ABS:
4023 /* unable to handle this */
4032 if (acfg->aot_opts.print_skipped_methods)
4033 printf ("Skip (abs call): %s\n", mono_method_full_name (method, TRUE));
4034 InterlockedIncrement (&acfg->stats.abscount);
4035 mono_destroy_compile (cfg);
4039 /* Lock for the rest of the code */
4040 mono_acfg_lock (acfg);
4043 * Check for methods/klasses we can't encode.
4046 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4047 if (!can_encode_patch (acfg, patch_info))
4052 if (acfg->aot_opts.print_skipped_methods)
4053 printf ("Skip (patches): %s\n", mono_method_full_name (method, TRUE));
4054 acfg->stats.ocount++;
4055 mono_destroy_compile (cfg);
4056 mono_acfg_unlock (acfg);
4060 /* Adds generic instances referenced by this method */
4062 * The depth is used to avoid infinite loops when generic virtual recursion is
4065 depth = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_depth, method));
4067 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4068 switch (patch_info->type) {
4069 case MONO_PATCH_INFO_METHOD: {
4070 MonoMethod *m = patch_info->data.method;
4071 if (m->is_inflated) {
4072 if (!(mono_class_generic_sharing_enabled (m->klass) &&
4073 mono_method_is_generic_sharable_impl (m, FALSE)) &&
4074 !method_has_type_vars (m)) {
4075 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
4076 if (acfg->aot_opts.full_aot)
4077 add_extra_method_with_depth (acfg, mono_marshal_get_native_wrapper (m, TRUE, TRUE), depth + 1);
4079 add_extra_method_with_depth (acfg, m, depth + 1);
4082 add_generic_class (acfg, m->klass);
4084 if (m->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && !strcmp (m->name, "ElementAddr"))
4085 add_extra_method_with_depth (acfg, m, depth + 1);
4088 case MONO_PATCH_INFO_VTABLE: {
4089 MonoClass *klass = patch_info->data.klass;
4091 if (klass->generic_class && !mono_generic_context_is_sharable (&klass->generic_class->context, FALSE))
4092 add_generic_class (acfg, klass);
4101 /* Determine whenever the method has GOT slots */
4102 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4103 switch (patch_info->type) {
4104 case MONO_PATCH_INFO_GOT_OFFSET:
4105 case MONO_PATCH_INFO_NONE:
4107 case MONO_PATCH_INFO_IMAGE:
4108 /* The assembly is stored in GOT slot 0 */
4109 if (patch_info->data.image != acfg->image)
4110 cfg->has_got_slots = TRUE;
4113 if (!is_plt_patch (patch_info))
4114 cfg->has_got_slots = TRUE;
4119 if (!cfg->has_got_slots)
4120 InterlockedIncrement (&acfg->stats.methods_without_got_slots);
4123 * FIXME: Instead of this mess, allocate the patches from the aot mempool.
4125 /* Make a copy of the patch info which is in the mempool */
4127 MonoJumpInfo *patches = NULL, *patches_end = NULL;
4129 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4130 MonoJumpInfo *new_patch_info = mono_patch_info_dup_mp (acfg->mempool, patch_info);
4133 patches = new_patch_info;
4135 patches_end->next = new_patch_info;
4136 patches_end = new_patch_info;
4138 cfg->patch_info = patches;
4140 /* Make a copy of the unwind info */
4142 GSList *l, *unwind_ops;
4146 for (l = cfg->unwind_ops; l; l = l->next) {
4147 op = mono_mempool_alloc (acfg->mempool, sizeof (MonoUnwindOp));
4148 memcpy (op, l->data, sizeof (MonoUnwindOp));
4149 unwind_ops = g_slist_prepend_mempool (acfg->mempool, unwind_ops, op);
4151 cfg->unwind_ops = g_slist_reverse (unwind_ops);
4153 /* Make a copy of the argument/local info */
4155 MonoInst **args, **locals;
4156 MonoMethodSignature *sig;
4157 MonoMethodHeader *header;
4160 sig = mono_method_signature (method);
4161 args = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * (sig->param_count + sig->hasthis));
4162 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4163 args [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
4164 memcpy (args [i], cfg->args [i], sizeof (MonoInst));
4168 header = mono_method_get_header (method);
4169 locals = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * header->num_locals);
4170 for (i = 0; i < header->num_locals; ++i) {
4171 locals [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
4172 memcpy (locals [i], cfg->locals [i], sizeof (MonoInst));
4174 cfg->locals = locals;
4177 /* Free some fields used by cfg to conserve memory */
4178 mono_mempool_destroy (cfg->mempool);
4179 cfg->mempool = NULL;
4180 g_free (cfg->varinfo);
4181 cfg->varinfo = NULL;
4185 mono_regstate_free (cfg->rs);
4189 //printf ("Compile: %s\n", mono_method_full_name (method, TRUE));
4191 while (index >= acfg->cfgs_size) {
4192 MonoCompile **new_cfgs;
4195 new_size = acfg->cfgs_size * 2;
4196 new_cfgs = g_new0 (MonoCompile*, new_size);
4197 memcpy (new_cfgs, acfg->cfgs, sizeof (MonoCompile*) * acfg->cfgs_size);
4198 g_free (acfg->cfgs);
4199 acfg->cfgs = new_cfgs;
4200 acfg->cfgs_size = new_size;
4202 acfg->cfgs [index] = cfg;
4204 g_hash_table_insert (acfg->method_to_cfg, cfg->orig_method, cfg);
4207 if (cfg->orig_method->wrapper_type)
4208 g_ptr_array_add (acfg->extra_methods, cfg->orig_method);
4211 mono_acfg_unlock (acfg);
4213 InterlockedIncrement (&acfg->stats.ccount);
4217 compile_thread_main (gpointer *user_data)
4219 MonoDomain *domain = user_data [0];
4220 MonoAotCompile *acfg = user_data [1];
4221 GPtrArray *methods = user_data [2];
4224 mono_thread_attach (domain);
4226 for (i = 0; i < methods->len; ++i)
4227 compile_method (acfg, g_ptr_array_index (methods, i));
4231 load_profile_files (MonoAotCompile *acfg)
4235 int file_index, res, method_index, i;
4242 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);
4244 if (!g_file_test (tmp, G_FILE_TEST_IS_REGULAR)) {
4249 infile = fopen (tmp, "r");
4252 printf ("Using profile data file '%s'\n", tmp);
4257 res = fscanf (infile, "%32s\n", ver);
4258 if ((res != 1) || strcmp (ver, "#VER:1") != 0) {
4259 printf ("Profile file has wrong version or invalid.\n");
4265 res = fscanf (infile, "%d\n", &token);
4269 method_index = mono_metadata_token_index (token) - 1;
4271 if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (method_index)))
4272 acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (method_index));
4277 /* Add missing methods */
4279 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
4280 if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (i)))
4281 unordered = g_list_prepend (unordered, GUINT_TO_POINTER (i));
4283 unordered = g_list_reverse (unordered);
4284 if (acfg->method_order)
4285 g_list_last (acfg->method_order)->next = unordered;
4287 acfg->method_order = unordered;
4290 /* Used by the LLVM backend */
4292 mono_aot_get_got_offset (MonoJumpInfo *ji)
4294 return get_got_offset (llvm_acfg, ji);
4298 mono_aot_get_method_name (MonoCompile *cfg)
4300 guint32 method_index = get_method_index (llvm_acfg, cfg->orig_method);
4302 return g_strdup_printf ("m_%x", method_index);
4306 mono_aot_get_method_debug_name (MonoCompile *cfg)
4308 return get_debug_sym (cfg->orig_method, "", llvm_acfg->method_label_hash);
4312 mono_aot_get_plt_symbol (MonoJumpInfoType type, gconstpointer data)
4314 MonoJumpInfo *ji = mono_mempool_alloc (llvm_acfg->mempool, sizeof (MonoJumpInfo));
4318 ji->data.target = data;
4320 if (!can_encode_patch (llvm_acfg, ji))
4323 offset = get_plt_offset (llvm_acfg, ji);
4325 return g_strdup_printf ("%sp_%d", llvm_acfg->temp_prefix, offset);
4329 mono_aot_patch_info_dup (MonoJumpInfo* ji)
4333 mono_acfg_lock (llvm_acfg);
4334 res = mono_patch_info_dup_mp (llvm_acfg->mempool, ji);
4335 mono_acfg_unlock (llvm_acfg);
4345 * Emit the LLVM code into an LLVM bytecode file, and compile it using the LLVM
4349 emit_llvm_file (MonoAotCompile *acfg)
4351 char *command, *opts;
4353 MonoJumpInfo *patch_info;
4354 char *llc_target_args;
4357 * When using LLVM, we let llvm emit the got since the LLVM IL needs to refer
4361 /* Compute the final size of the got */
4362 for (i = 0; i < acfg->nmethods; ++i) {
4363 if (acfg->cfgs [i]) {
4364 for (patch_info = acfg->cfgs [i]->patch_info; patch_info; patch_info = patch_info->next) {
4365 if (patch_info->type != MONO_PATCH_INFO_NONE) {
4366 if (!is_plt_patch (patch_info))
4367 get_got_offset (acfg, patch_info);
4369 get_plt_offset (acfg, patch_info);
4375 acfg->final_got_size = acfg->got_offset + acfg->plt_offset;
4377 if (acfg->aot_opts.full_aot) {
4381 * Need to add the got entries used by the trampolines.
4382 * This is only a conservative approximation.
4384 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
4385 /* For the generic + rgctx trampolines */
4386 acfg->final_got_size += 200;
4387 /* For the specific trampolines */
4388 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype)
4389 acfg->final_got_size += acfg->num_trampolines [ntype] * 2;
4394 mono_llvm_emit_aot_module ("temp.bc", acfg->final_got_size);
4397 * FIXME: Experiment with adding optimizations, the -std-compile-opts set takes
4398 * a lot of time, and doesn't seem to save much space.
4399 * The following optimizations cannot be enabled:
4401 * The opt list below was produced by taking the output of:
4402 * llvm-as < /dev/null | opt -O2 -disable-output -debug-pass=Arguments
4403 * then removing tailcallelim + the global opts, and adding a second gvn.
4405 opts = g_strdup ("-instcombine -simplifycfg");
4406 opts = g_strdup ("-simplifycfg -domtree -domfrontier -scalarrepl -instcombine -simplifycfg -basiccg -prune-eh -inline -functionattrs -domtree -domfrontier -scalarrepl -simplify-libcalls -instcombine -jump-threading -simplifycfg -instcombine -simplifycfg -reassociate -domtree -loops -loopsimplify -domfrontier -loopsimplify -lcssa -loop-rotate -licm -lcssa -loop-unswitch -instcombine -scalar-evolution -loopsimplify -lcssa -iv-users -indvars -loop-deletion -loopsimplify -lcssa -loop-unroll -instcombine -memdep -gvn -memdep -memcpyopt -sccp -instcombine -jump-threading -domtree -memdep -dse -adce -gvn -simplifycfg -preverify -domtree -verify");
4408 command = g_strdup_printf ("opt -f %s -o temp.opt.bc temp.bc", opts);
4409 printf ("Executing opt: %s\n", command);
4410 if (system (command) != 0) {
4416 llc_target_args = g_strdup (LLC_TARGET_ARGS);
4418 command = g_strdup_printf ("llc %s -f -relocation-model=pic -unwind-tables -o %s temp.opt.bc", llc_target_args, acfg->tmpfname);
4419 g_free (llc_target_args);
4421 printf ("Executing llc: %s\n", command);
4423 if (system (command) != 0) {
4430 emit_code (MonoAotCompile *acfg)
4434 char end_symbol [256];
4437 #if defined(TARGET_POWERPC64)
4438 sprintf (symbol, ".Lgot_addr");
4439 emit_section_change (acfg, ".text", 0);
4440 emit_alignment (acfg, 8);
4441 emit_label (acfg, symbol);
4442 emit_pointer (acfg, acfg->got_symbol);
4446 * This global symbol is used to compute the address of each method using the
4447 * code_offsets array. It is also used to compute the memory ranges occupied by
4448 * AOT code, so it must be equal to the address of the first emitted method.
4450 sprintf (symbol, "methods");
4451 emit_section_change (acfg, ".text", 0);
4452 emit_global (acfg, symbol, TRUE);
4453 emit_alignment (acfg, 8);
4455 for (i = 0; i < acfg->nmethods; ++i) {
4456 if (acfg->cfgs [i] && acfg->cfgs [i]->compile_llvm) {
4457 fprintf (acfg->fp, "\n.set methods, %s\n", acfg->cfgs [i]->asm_symbol);
4461 if (i == acfg->nmethods)
4462 /* No LLVM compiled methods */
4463 emit_label (acfg, symbol);
4465 emit_label (acfg, symbol);
4469 * Emit some padding so the local symbol for the first method doesn't have the
4470 * same address as 'methods'.
4472 emit_zero_bytes (acfg, 16);
4474 for (l = acfg->method_order; l != NULL; l = l->next) {
4475 i = GPOINTER_TO_UINT (l->data);
4477 if (acfg->cfgs [i]) {
4478 if (acfg->cfgs [i]->compile_llvm)
4479 acfg->stats.llvm_count ++;
4481 emit_method_code (acfg, acfg->cfgs [i]);
4485 sprintf (symbol, "methods_end");
4486 emit_section_change (acfg, ".text", 0);
4487 emit_global (acfg, symbol, FALSE);
4488 emit_alignment (acfg, 8);
4489 emit_label (acfg, symbol);
4491 sprintf (symbol, "code_offsets");
4492 emit_section_change (acfg, ".text", 1);
4493 emit_global (acfg, symbol, FALSE);
4494 emit_alignment (acfg, 8);
4495 emit_label (acfg, symbol);
4497 acfg->stats.offsets_size += acfg->nmethods * 4;
4499 sprintf (end_symbol, "%smethods", acfg->llvm_label_prefix);
4500 for (i = 0; i < acfg->nmethods; ++i) {
4501 if (acfg->cfgs [i]) {
4502 emit_symbol_diff (acfg, acfg->cfgs [i]->asm_symbol, end_symbol, 0);
4504 emit_int32 (acfg, 0xffffffff);
4511 emit_info (MonoAotCompile *acfg)
4518 offsets = g_new0 (gint32, acfg->nmethods);
4520 for (l = acfg->method_order; l != NULL; l = l->next) {
4521 i = GPOINTER_TO_UINT (l->data);
4523 if (acfg->cfgs [i]) {
4524 emit_method_info (acfg, acfg->cfgs [i]);
4525 offsets [i] = acfg->cfgs [i]->method_info_offset;
4531 sprintf (symbol, "method_info_offsets");
4532 emit_section_change (acfg, ".text", 1);
4533 emit_global (acfg, symbol, FALSE);
4534 emit_alignment (acfg, 8);
4535 emit_label (acfg, symbol);
4537 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->nmethods, 10, offsets);
4542 #endif /* #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT) */
4544 #define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
4545 #define mix(a,b,c) { \
4546 a -= c; a ^= rot(c, 4); c += b; \
4547 b -= a; b ^= rot(a, 6); a += c; \
4548 c -= b; c ^= rot(b, 8); b += a; \
4549 a -= c; a ^= rot(c,16); c += b; \
4550 b -= a; b ^= rot(a,19); a += c; \
4551 c -= b; c ^= rot(b, 4); b += a; \
4553 #define final(a,b,c) { \
4554 c ^= b; c -= rot(b,14); \
4555 a ^= c; a -= rot(c,11); \
4556 b ^= a; b -= rot(a,25); \
4557 c ^= b; c -= rot(b,16); \
4558 a ^= c; a -= rot(c,4); \
4559 b ^= a; b -= rot(a,14); \
4560 c ^= b; c -= rot(b,24); \
4564 mono_aot_type_hash (MonoType *t1)
4566 guint hash = t1->type;
4568 hash |= t1->byref << 6; /* do not collide with t1->type values */
4570 case MONO_TYPE_VALUETYPE:
4571 case MONO_TYPE_CLASS:
4572 case MONO_TYPE_SZARRAY:
4573 /* check if the distribution is good enough */
4574 return ((hash << 5) - hash) ^ mono_metadata_str_hash (t1->data.klass->name);
4576 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4577 case MONO_TYPE_ARRAY:
4578 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4579 case MONO_TYPE_GENERICINST:
4580 return ((hash << 5) - hash) ^ 0;
4586 * mono_aot_method_hash:
4588 * Return a hash code for methods which only depends on metadata.
4591 mono_aot_method_hash (MonoMethod *method)
4593 MonoMethodSignature *sig;
4597 guint32 *hashes_start, *hashes;
4600 /* Similar to the hash in mono_method_get_imt_slot () */
4602 sig = mono_method_signature (method);
4604 hashes_count = sig->param_count + 5;
4605 hashes_start = malloc (hashes_count * sizeof (guint32));
4606 hashes = hashes_start;
4608 /* Some wrappers are assigned to random classes */
4609 if (!method->wrapper_type || method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4610 klass = method->klass;
4612 klass = mono_defaults.object_class;
4614 if (!method->wrapper_type) {
4615 char *full_name = mono_type_full_name (&klass->byval_arg);
4617 hashes [0] = mono_metadata_str_hash (full_name);
4621 hashes [0] = mono_metadata_str_hash (klass->name);
4622 hashes [1] = mono_metadata_str_hash (klass->name_space);
4624 if (method->wrapper_type == MONO_WRAPPER_STFLD || method->wrapper_type == MONO_WRAPPER_LDFLD || method->wrapper_type == MONO_WRAPPER_LDFLDA)
4625 /* The method name includes a stringified pointer */
4628 hashes [2] = mono_metadata_str_hash (method->name);
4629 hashes [3] = method->wrapper_type;
4630 hashes [4] = mono_aot_type_hash (sig->ret);
4631 for (i = 0; i < sig->param_count; i++) {
4632 hashes [5 + i] = mono_aot_type_hash (sig->params [i]);
4635 /* Setup internal state */
4636 a = b = c = 0xdeadbeef + (((guint32)hashes_count)<<2);
4638 /* Handle most of the hashes */
4639 while (hashes_count > 3) {
4648 /* Handle the last 3 hashes (all the case statements fall through) */
4649 switch (hashes_count) {
4650 case 3 : c += hashes [2];
4651 case 2 : b += hashes [1];
4652 case 1 : a += hashes [0];
4654 case 0: /* nothing left to add */
4658 free (hashes_start);
4667 * mono_aot_wrapper_name:
4669 * Return a string which uniqely identifies the given wrapper method.
4672 mono_aot_wrapper_name (MonoMethod *method)
4674 char *name, *tmpsig, *klass_desc;
4676 tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
4678 switch (method->wrapper_type) {
4679 case MONO_WRAPPER_RUNTIME_INVOKE:
4680 if (!strcmp (method->name, "runtime_invoke_dynamic"))
4681 name = g_strdup_printf ("(wrapper runtime-invoke-dynamic)");
4683 name = g_strdup_printf ("%s (%s)", method->name, tmpsig);
4686 klass_desc = mono_type_full_name (&method->klass->byval_arg);
4687 name = g_strdup_printf ("%s:%s (%s)", klass_desc, method->name, tmpsig);
4688 g_free (klass_desc);
4698 * mono_aot_get_array_helper_from_wrapper;
4700 * Get the helper method in Array called by an array wrapper method.
4703 mono_aot_get_array_helper_from_wrapper (MonoMethod *method)
4707 MonoGenericContext ctx;
4708 MonoType *args [16];
4709 char *mname, *iname, *s, *s2, *helper_name = NULL;
4711 prefix = "System.Collections.Generic";
4712 s = g_strdup_printf ("%s", method->name + strlen (prefix) + 1);
4713 s2 = strstr (s, "`1.");
4719 //printf ("X: %s %s\n", iname, mname);
4721 if (!strcmp (iname, "IList"))
4722 helper_name = g_strdup_printf ("InternalArray__%s", mname);
4724 helper_name = g_strdup_printf ("InternalArray__%s_%s", iname, mname);
4725 m = mono_class_get_method_from_name (mono_defaults.array_class, helper_name, mono_method_signature (method)->param_count);
4727 g_free (helper_name);
4730 if (m->is_generic) {
4731 memset (&ctx, 0, sizeof (ctx));
4732 args [0] = &method->klass->element_class->byval_arg;
4733 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4734 m = mono_class_inflate_generic_method (m, &ctx);
4741 * mono_aot_tramp_info_create:
4743 * Create a MonoAotTrampInfo structure from the arguments.
4746 mono_aot_tramp_info_create (const char *name, guint8 *code, guint32 code_size)
4748 MonoAotTrampInfo *info = g_new0 (MonoAotTrampInfo, 1);
4750 info->name = (char*)name;
4752 info->code_size = code_size;
4757 #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
4759 typedef struct HashEntry {
4760 guint32 key, value, index;
4761 struct HashEntry *next;
4765 * emit_extra_methods:
4767 * Emit methods which are not in the METHOD table, like wrappers.
4770 emit_extra_methods (MonoAotCompile *acfg)
4772 int i, table_size, buf_size;
4775 guint32 *info_offsets;
4778 HashEntry *entry, *new_entry;
4779 int nmethods, max_chain_length;
4782 info_offsets = g_new0 (guint32, acfg->extra_methods->len);
4784 /* Emit method info */
4786 for (i = 0; i < acfg->extra_methods->len; ++i) {
4787 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
4788 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
4795 p = buf = g_malloc (buf_size);
4800 if (method->wrapper_type) {
4802 * We encode some wrappers using their name, since encoding them
4803 * directly would be difficult. This also avoids creating the wrapper
4804 * methods at runtime, since they are not needed anyway.
4806 switch (method->wrapper_type) {
4807 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
4808 case MONO_WRAPPER_SYNCHRONIZED:
4809 /* encode_method_ref () can handle these */
4811 case MONO_WRAPPER_RUNTIME_INVOKE:
4812 if (mono_marshal_method_from_wrapper (method) != method && !strstr (method->name, "virtual"))
4813 /* Direct wrapper, encode normally */
4817 name = mono_aot_wrapper_name (method);
4823 encode_value (1, p, &p);
4824 encode_value (method->wrapper_type, p, &p);
4825 strcpy ((char*)p, name);
4826 p += strlen (name ) + 1;
4829 encode_value (0, p, &p);
4830 encode_method_ref (acfg, method, p, &p);
4833 g_assert ((p - buf) < buf_size);
4835 info_offsets [i] = add_to_blob (acfg, buf, p - buf);
4840 * Construct a chained hash table for mapping indexes in extra_method_info to
4843 table_size = g_spaced_primes_closest ((int)(nmethods * 1.5));
4844 table = g_ptr_array_sized_new (table_size);
4845 for (i = 0; i < table_size; ++i)
4846 g_ptr_array_add (table, NULL);
4847 chain_lengths = g_new0 (int, table_size);
4848 max_chain_length = 0;
4849 for (i = 0; i < acfg->extra_methods->len; ++i) {
4850 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
4851 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
4857 key = info_offsets [i];
4858 value = get_method_index (acfg, method);
4860 hash = mono_aot_method_hash (method) % table_size;
4862 chain_lengths [hash] ++;
4863 max_chain_length = MAX (max_chain_length, chain_lengths [hash]);
4865 new_entry = mono_mempool_alloc0 (acfg->mempool, sizeof (HashEntry));
4866 new_entry->key = key;
4867 new_entry->value = value;
4869 entry = g_ptr_array_index (table, hash);
4870 if (entry == NULL) {
4871 new_entry->index = hash;
4872 g_ptr_array_index (table, hash) = new_entry;
4875 entry = entry->next;
4877 entry->next = new_entry;
4878 new_entry->index = table->len;
4879 g_ptr_array_add (table, new_entry);
4883 //printf ("MAX: %d\n", max_chain_length);
4885 /* Emit the table */
4886 sprintf (symbol, "extra_method_table");
4887 emit_section_change (acfg, ".text", 0);
4888 emit_global (acfg, symbol, FALSE);
4889 emit_alignment (acfg, 8);
4890 emit_label (acfg, symbol);
4892 emit_int32 (acfg, table_size);
4893 for (i = 0; i < table->len; ++i) {
4894 HashEntry *entry = g_ptr_array_index (table, i);
4896 if (entry == NULL) {
4897 emit_int32 (acfg, 0);
4898 emit_int32 (acfg, 0);
4899 emit_int32 (acfg, 0);
4901 //g_assert (entry->key > 0);
4902 emit_int32 (acfg, entry->key);
4903 emit_int32 (acfg, entry->value);
4905 emit_int32 (acfg, entry->next->index);
4907 emit_int32 (acfg, 0);
4912 * Emit a table reverse mapping method indexes to their index in extra_method_info.
4913 * This is used by mono_aot_find_jit_info ().
4915 sprintf (symbol, "extra_method_info_offsets");
4916 emit_section_change (acfg, ".text", 0);
4917 emit_global (acfg, symbol, FALSE);
4918 emit_alignment (acfg, 8);
4919 emit_label (acfg, symbol);
4921 emit_int32 (acfg, acfg->extra_methods->len);
4922 for (i = 0; i < acfg->extra_methods->len; ++i) {
4923 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
4925 emit_int32 (acfg, get_method_index (acfg, method));
4926 emit_int32 (acfg, info_offsets [i]);
4931 emit_exception_info (MonoAotCompile *acfg)
4937 offsets = g_new0 (gint32, acfg->nmethods);
4938 for (i = 0; i < acfg->nmethods; ++i) {
4939 if (acfg->cfgs [i]) {
4940 emit_exception_debug_info (acfg, acfg->cfgs [i]);
4941 offsets [i] = acfg->cfgs [i]->ex_info_offset;
4947 sprintf (symbol, "ex_info_offsets");
4948 emit_section_change (acfg, ".text", 1);
4949 emit_global (acfg, symbol, FALSE);
4950 emit_alignment (acfg, 8);
4951 emit_label (acfg, symbol);
4953 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->nmethods, 10, offsets);
4958 emit_unwind_info (MonoAotCompile *acfg)
4964 * The unwind info contains a lot of duplicates so we emit each unique
4965 * entry once, and only store the offset from the start of the table in the
4969 sprintf (symbol, "unwind_info");
4970 emit_section_change (acfg, ".text", 1);
4971 emit_alignment (acfg, 8);
4972 emit_label (acfg, symbol);
4973 emit_global (acfg, symbol, FALSE);
4975 for (i = 0; i < acfg->unwind_ops->len; ++i) {
4976 guint32 index = GPOINTER_TO_UINT (g_ptr_array_index (acfg->unwind_ops, i));
4977 guint8 *unwind_info;
4978 guint32 unwind_info_len;
4982 unwind_info = mono_get_cached_unwind_info (index, &unwind_info_len);
4985 encode_value (unwind_info_len, p, &p);
4986 emit_bytes (acfg, buf, p - buf);
4987 emit_bytes (acfg, unwind_info, unwind_info_len);
4989 acfg->stats.unwind_info_size += (p - buf) + unwind_info_len;
4994 emit_class_info (MonoAotCompile *acfg)
5000 offsets = g_new0 (gint32, acfg->image->tables [MONO_TABLE_TYPEDEF].rows);
5001 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i)
5002 offsets [i] = emit_klass_info (acfg, MONO_TOKEN_TYPE_DEF | (i + 1));
5004 sprintf (symbol, "class_info_offsets");
5005 emit_section_change (acfg, ".text", 1);
5006 emit_global (acfg, symbol, FALSE);
5007 emit_alignment (acfg, 8);
5008 emit_label (acfg, symbol);
5010 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->image->tables [MONO_TABLE_TYPEDEF].rows, 10, offsets);
5014 typedef struct ClassNameTableEntry {
5015 guint32 token, index;
5016 struct ClassNameTableEntry *next;
5017 } ClassNameTableEntry;
5020 emit_class_name_table (MonoAotCompile *acfg)
5023 guint32 token, hash;
5028 ClassNameTableEntry *entry, *new_entry;
5031 * Construct a chained hash table for mapping class names to typedef tokens.
5033 table_size = g_spaced_primes_closest ((int)(acfg->image->tables [MONO_TABLE_TYPEDEF].rows * 1.5));
5034 table = g_ptr_array_sized_new (table_size);
5035 for (i = 0; i < table_size; ++i)
5036 g_ptr_array_add (table, NULL);
5037 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
5038 token = MONO_TOKEN_TYPE_DEF | (i + 1);
5039 klass = mono_class_get (acfg->image, token);
5040 full_name = mono_type_get_name_full (mono_class_get_type (klass), MONO_TYPE_NAME_FORMAT_FULL_NAME);
5041 hash = mono_metadata_str_hash (full_name) % table_size;
5044 /* FIXME: Allocate from the mempool */
5045 new_entry = g_new0 (ClassNameTableEntry, 1);
5046 new_entry->token = token;
5048 entry = g_ptr_array_index (table, hash);
5049 if (entry == NULL) {
5050 new_entry->index = hash;
5051 g_ptr_array_index (table, hash) = new_entry;
5054 entry = entry->next;
5056 entry->next = new_entry;
5057 new_entry->index = table->len;
5058 g_ptr_array_add (table, new_entry);
5062 /* Emit the table */
5063 sprintf (symbol, "class_name_table");
5064 emit_section_change (acfg, ".text", 0);
5065 emit_global (acfg, symbol, FALSE);
5066 emit_alignment (acfg, 8);
5067 emit_label (acfg, symbol);
5069 /* FIXME: Optimize memory usage */
5070 g_assert (table_size < 65000);
5071 emit_int16 (acfg, table_size);
5072 g_assert (table->len < 65000);
5073 for (i = 0; i < table->len; ++i) {
5074 ClassNameTableEntry *entry = g_ptr_array_index (table, i);
5076 if (entry == NULL) {
5077 emit_int16 (acfg, 0);
5078 emit_int16 (acfg, 0);
5080 emit_int16 (acfg, mono_metadata_token_index (entry->token));
5082 emit_int16 (acfg, entry->next->index);
5084 emit_int16 (acfg, 0);
5090 emit_image_table (MonoAotCompile *acfg)
5096 * The image table is small but referenced in a lot of places.
5097 * So we emit it at once, and reference its elements by an index.
5100 sprintf (symbol, "mono_image_table");
5101 emit_section_change (acfg, ".text", 1);
5102 emit_global (acfg, symbol, FALSE);
5103 emit_alignment (acfg, 8);
5104 emit_label (acfg, symbol);
5106 emit_int32 (acfg, acfg->image_table->len);
5107 for (i = 0; i < acfg->image_table->len; i++) {
5108 MonoImage *image = (MonoImage*)g_ptr_array_index (acfg->image_table, i);
5109 MonoAssemblyName *aname = &image->assembly->aname;
5111 /* FIXME: Support multi-module assemblies */
5112 g_assert (image->assembly->image == image);
5114 emit_string (acfg, image->assembly_name);
5115 emit_string (acfg, image->guid);
5116 emit_string (acfg, aname->culture ? aname->culture : "");
5117 emit_string (acfg, (const char*)aname->public_key_token);
5119 emit_alignment (acfg, 8);
5120 emit_int32 (acfg, aname->flags);
5121 emit_int32 (acfg, aname->major);
5122 emit_int32 (acfg, aname->minor);
5123 emit_int32 (acfg, aname->build);
5124 emit_int32 (acfg, aname->revision);
5129 emit_got_info (MonoAotCompile *acfg)
5132 int i, first_plt_got_patch, buf_size;
5134 guint32 *got_info_offsets;
5136 /* Add the patches needed by the PLT to the GOT */
5137 acfg->plt_got_offset_base = acfg->got_offset;
5138 first_plt_got_patch = acfg->got_patches->len;
5139 for (i = 1; i < acfg->plt_offset; ++i) {
5140 MonoJumpInfo *patch_info = g_hash_table_lookup (acfg->plt_offset_to_patch, GUINT_TO_POINTER (i));
5142 g_ptr_array_add (acfg->got_patches, patch_info);
5145 acfg->got_offset += acfg->plt_offset;
5149 * - optimize offsets table.
5150 * - reduce number of exported symbols.
5151 * - emit info for a klass only once.
5152 * - determine when a method uses a GOT slot which is guaranteed to be already
5154 * - clean up and document the code.
5155 * - use String.Empty in class libs.
5158 /* Encode info required to decode shared GOT entries */
5159 buf_size = acfg->got_patches->len * 64;
5160 p = buf = mono_mempool_alloc (acfg->mempool, buf_size);
5161 got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->got_patches->len * sizeof (guint32));
5162 acfg->plt_got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->plt_offset * sizeof (guint32));
5164 if (acfg->plt_offset)
5165 acfg->plt_got_info_offsets [0] = 0;
5166 for (i = 0; i < acfg->got_patches->len; ++i) {
5167 MonoJumpInfo *ji = g_ptr_array_index (acfg->got_patches, i);
5171 encode_value (ji->type, p, &p);
5172 encode_patch (acfg, ji, p, &p);
5174 g_assert (p - buf <= buf_size);
5175 got_info_offsets [i] = add_to_blob (acfg, buf, p - buf);
5177 if (i >= first_plt_got_patch)
5178 acfg->plt_got_info_offsets [i - first_plt_got_patch + 1] = got_info_offsets [i];
5179 acfg->stats.got_info_size += p - buf;
5182 /* Emit got_info_offsets table */
5183 sprintf (symbol, "got_info_offsets");
5184 emit_section_change (acfg, ".text", 1);
5185 emit_global (acfg, symbol, FALSE);
5186 emit_alignment (acfg, 8);
5187 emit_label (acfg, symbol);
5189 /* No need to emit offsets for the got plt entries, the plt embeds them directly */
5190 acfg->stats.offsets_size += emit_offset_table (acfg, first_plt_got_patch, 10, (gint32*)got_info_offsets);
5194 emit_got (MonoAotCompile *acfg)
5199 /* Don't make GOT global so accesses to it don't need relocations */
5200 sprintf (symbol, "%s", acfg->got_symbol);
5201 emit_section_change (acfg, ".bss", 0);
5202 emit_alignment (acfg, 8);
5203 emit_local_symbol (acfg, symbol, "got_end", FALSE);
5204 emit_label (acfg, symbol);
5205 if (acfg->got_offset > 0)
5206 emit_zero_bytes (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
5208 sprintf (symbol, "got_end");
5209 emit_label (acfg, symbol);
5212 sprintf (symbol, "mono_aot_got_addr");
5213 emit_section_change (acfg, ".data", 0);
5214 emit_global (acfg, symbol, FALSE);
5215 emit_alignment (acfg, 8);
5216 emit_label (acfg, symbol);
5217 emit_pointer (acfg, acfg->got_symbol);
5220 typedef struct GlobalsTableEntry {
5221 guint32 value, index;
5222 struct GlobalsTableEntry *next;
5223 } GlobalsTableEntry;
5226 emit_globals_table (MonoAotCompile *acfg)
5232 GlobalsTableEntry *entry, *new_entry;
5235 * Construct a chained hash table for mapping global names to their index in
5236 * the globals table.
5238 table_size = g_spaced_primes_closest ((int)(acfg->globals->len * 1.5));
5239 table = g_ptr_array_sized_new (table_size);
5240 for (i = 0; i < table_size; ++i)
5241 g_ptr_array_add (table, NULL);
5242 for (i = 0; i < acfg->globals->len; ++i) {
5243 char *name = g_ptr_array_index (acfg->globals, i);
5245 hash = mono_metadata_str_hash (name) % table_size;
5247 /* FIXME: Allocate from the mempool */
5248 new_entry = g_new0 (GlobalsTableEntry, 1);
5249 new_entry->value = i;
5251 entry = g_ptr_array_index (table, hash);
5252 if (entry == NULL) {
5253 new_entry->index = hash;
5254 g_ptr_array_index (table, hash) = new_entry;
5257 entry = entry->next;
5259 entry->next = new_entry;
5260 new_entry->index = table->len;
5261 g_ptr_array_add (table, new_entry);
5265 /* Emit the table */
5266 sprintf (symbol, ".Lglobals_hash");
5267 emit_section_change (acfg, ".text", 0);
5268 emit_alignment (acfg, 8);
5269 emit_label (acfg, symbol);
5271 /* FIXME: Optimize memory usage */
5272 g_assert (table_size < 65000);
5273 emit_int16 (acfg, table_size);
5274 for (i = 0; i < table->len; ++i) {
5275 GlobalsTableEntry *entry = g_ptr_array_index (table, i);
5277 if (entry == NULL) {
5278 emit_int16 (acfg, 0);
5279 emit_int16 (acfg, 0);
5281 emit_int16 (acfg, entry->value + 1);
5283 emit_int16 (acfg, entry->next->index);
5285 emit_int16 (acfg, 0);
5289 /* Emit the names */
5290 for (i = 0; i < acfg->globals->len; ++i) {
5291 char *name = g_ptr_array_index (acfg->globals, i);
5293 sprintf (symbol, "name_%d", i);
5294 emit_section_change (acfg, ".text", 1);
5295 emit_label (acfg, symbol);
5296 emit_string (acfg, name);
5299 /* Emit the globals table */
5300 sprintf (symbol, ".Lglobals");
5301 emit_section_change (acfg, ".data", 0);
5302 /* This is not a global, since it is accessed by the init function */
5303 emit_alignment (acfg, 8);
5304 emit_label (acfg, symbol);
5306 sprintf (symbol, "%sglobals_hash", acfg->temp_prefix);
5307 emit_pointer (acfg, symbol);
5309 for (i = 0; i < acfg->globals->len; ++i) {
5310 char *name = g_ptr_array_index (acfg->globals, i);
5312 sprintf (symbol, "name_%d", i);
5313 emit_pointer (acfg, symbol);
5315 sprintf (symbol, "%s", name);
5316 emit_pointer (acfg, symbol);
5318 /* Null terminate the table */
5319 emit_int32 (acfg, 0);
5320 emit_int32 (acfg, 0);
5324 emit_globals (MonoAotCompile *acfg)
5328 emit_string_symbol (acfg, "mono_assembly_guid" , acfg->image->guid);
5330 emit_string_symbol (acfg, "mono_aot_version", MONO_AOT_FILE_VERSION);
5332 if (acfg->aot_opts.bind_to_runtime_version) {
5333 build_info = mono_get_runtime_build_info ();
5334 emit_string_symbol (acfg, "mono_runtime_version", build_info);
5335 g_free (build_info);
5337 emit_string_symbol (acfg, "mono_runtime_version", "");
5341 * When static linking, we emit a global which will point to the symbol table.
5343 if (acfg->aot_opts.static_link) {
5347 /* Emit a string holding the assembly name */
5348 emit_string_symbol (acfg, "mono_aot_assembly_name", acfg->image->assembly->aname.name);
5350 emit_globals_table (acfg);
5353 * Emit a global symbol which can be passed by an embedding app to
5354 * mono_aot_register_module ().
5356 #if defined(__MACH__)
5357 sprintf (symbol, "_mono_aot_module_%s_info", acfg->image->assembly->aname.name);
5359 sprintf (symbol, "mono_aot_module_%s_info", acfg->image->assembly->aname.name);
5362 /* Get rid of characters which cannot occur in symbols */
5364 for (p = symbol; *p; ++p) {
5365 if (!(isalnum (*p) || *p == '_'))
5368 acfg->static_linking_symbol = g_strdup (symbol);
5369 emit_global_inner (acfg, symbol, FALSE);
5370 emit_alignment (acfg, 8);
5371 emit_label (acfg, symbol);
5372 sprintf (symbol, "%sglobals", acfg->temp_prefix);
5373 emit_pointer (acfg, symbol);
5378 emit_autoreg (MonoAotCompile *acfg)
5383 * Emit a function into the .ctor section which will be called by the ELF
5384 * loader to register this module with the runtime.
5386 if (! (!acfg->use_bin_writer && acfg->aot_opts.static_link && acfg->aot_opts.autoreg))
5389 symbol = g_strdup_printf ("_%s_autoreg", acfg->static_linking_symbol);
5391 arch_emit_autoreg (acfg, symbol);
5397 emit_mem_end (MonoAotCompile *acfg)
5401 sprintf (symbol, "mem_end");
5402 emit_section_change (acfg, ".text", 1);
5403 emit_global (acfg, symbol, FALSE);
5404 emit_alignment (acfg, 8);
5405 emit_label (acfg, symbol);
5409 * Emit a structure containing all the information not stored elsewhere.
5412 emit_file_info (MonoAotCompile *acfg)
5417 sprintf (symbol, "mono_aot_file_info");
5418 emit_section_change (acfg, ".data", 0);
5419 emit_alignment (acfg, 8);
5420 emit_label (acfg, symbol);
5421 emit_global (acfg, symbol, FALSE);
5423 /* The data emitted here must match MonoAotFileInfo in aot-runtime.c. */
5424 emit_int32 (acfg, acfg->plt_got_offset_base);
5425 emit_int32 (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
5426 emit_int32 (acfg, acfg->plt_offset);
5427 emit_int32 (acfg, acfg->nmethods);
5428 emit_int32 (acfg, acfg->flags);
5429 emit_int32 (acfg, acfg->opts);
5431 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
5432 emit_int32 (acfg, acfg->num_trampolines [i]);
5433 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
5434 emit_int32 (acfg, acfg->trampoline_got_offset_base [i]);
5435 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
5436 emit_int32 (acfg, acfg->trampoline_size [i]);
5440 emit_blob (MonoAotCompile *acfg)
5444 sprintf (symbol, "blob");
5445 emit_section_change (acfg, ".text", 1);
5446 emit_global (acfg, symbol, FALSE);
5447 emit_alignment (acfg, 8);
5448 emit_label (acfg, symbol);
5450 emit_bytes (acfg, (guint8*)acfg->blob.data, acfg->blob.index);
5454 emit_dwarf_info (MonoAotCompile *acfg)
5456 #ifdef EMIT_DWARF_INFO
5458 char symbol [128], symbol2 [128];
5460 /* DIEs for methods */
5461 for (i = 0; i < acfg->nmethods; ++i) {
5462 MonoCompile *cfg = acfg->cfgs [i];
5467 // FIXME: LLVM doesn't define .Lme_...
5468 if (cfg->compile_llvm)
5471 sprintf (symbol, "%s", cfg->asm_symbol);
5472 sprintf (symbol2, "%sme_%x", acfg->temp_prefix, i);
5474 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 ()));
5480 collect_methods (MonoAotCompile *acfg)
5483 MonoImage *image = acfg->image;
5485 /* Collect methods */
5486 for (i = 0; i < image->tables [MONO_TABLE_METHOD].rows; ++i) {
5488 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
5490 method = mono_get_method (acfg->image, token, NULL);
5493 printf ("Failed to load method 0x%x from '%s'.\n", token, image->name);
5497 /* Load all methods eagerly to skip the slower lazy loading code */
5498 mono_class_setup_methods (method->klass);
5500 if (acfg->aot_opts.full_aot && method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
5501 /* Compile the wrapper instead */
5502 /* We do this here instead of add_wrappers () because it is easy to do it here */
5503 MonoMethod *wrapper = mono_marshal_get_native_wrapper (method, check_for_pending_exc, TRUE);
5507 /* FIXME: Some mscorlib methods don't have debug info */
5509 if (acfg->aot_opts.soft_debug && !method->wrapper_type) {
5510 if (!((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
5511 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
5512 (method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
5513 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))) {
5514 if (!mono_debug_lookup_method (method)) {
5515 fprintf (stderr, "Method %s has no debug info, probably the .mdb file for the assembly is missing.\n", mono_method_full_name (method, TRUE));
5522 /* Since we add the normal methods first, their index will be equal to their zero based token index */
5523 add_method_with_index (acfg, method, i, FALSE);
5524 acfg->method_index ++;
5527 add_generic_instances (acfg);
5529 if (acfg->aot_opts.full_aot)
5530 add_wrappers (acfg);
5534 compile_methods (MonoAotCompile *acfg)
5538 if (acfg->aot_opts.nthreads > 0) {
5543 gpointer *user_data;
5544 MonoMethod **methods;
5546 methods_len = acfg->methods->len;
5548 len = acfg->methods->len / acfg->aot_opts.nthreads;
5551 * Partition the list of methods into fragments, and hand it to threads to
5554 threads = g_ptr_array_new ();
5555 /* Make a copy since acfg->methods is modified by compile_method () */
5556 methods = g_new0 (MonoMethod*, methods_len);
5557 //memcpy (methods, g_ptr_array_index (acfg->methods, 0), sizeof (MonoMethod*) * methods_len);
5558 for (i = 0; i < methods_len; ++i)
5559 methods [i] = g_ptr_array_index (acfg->methods, i);
5561 while (i < methods_len) {
5562 frag = g_ptr_array_new ();
5563 for (j = 0; j < len; ++j) {
5564 if (i < methods_len) {
5565 g_ptr_array_add (frag, methods [i]);
5570 user_data = g_new0 (gpointer, 3);
5571 user_data [0] = mono_domain_get ();
5572 user_data [1] = acfg;
5573 user_data [2] = frag;
5575 handle = mono_create_thread (NULL, 0, (gpointer)compile_thread_main, user_data, 0, NULL);
5576 g_ptr_array_add (threads, handle);
5580 for (i = 0; i < threads->len; ++i) {
5581 WaitForSingleObjectEx (g_ptr_array_index (threads, i), INFINITE, FALSE);
5587 /* Compile methods added by compile_method () or all methods if nthreads == 0 */
5588 for (i = methods_len; i < acfg->methods->len; ++i) {
5589 /* This can new methods to acfg->methods */
5590 compile_method (acfg, g_ptr_array_index (acfg->methods, i));
5595 compile_asm (MonoAotCompile *acfg)
5597 char *command, *objfile;
5598 char *outfile_name, *tmp_outfile_name;
5599 const char *tool_prefix = acfg->aot_opts.tool_prefix ? acfg->aot_opts.tool_prefix : "";
5601 #if defined(TARGET_AMD64)
5602 #define AS_OPTIONS "--64"
5603 #elif defined(TARGET_POWERPC64)
5604 #define AS_OPTIONS "-a64 -mppc64"
5605 #define LD_OPTIONS "-m elf64ppc"
5606 #elif defined(sparc) && SIZEOF_VOID_P == 8
5607 #define AS_OPTIONS "-xarch=v9"
5609 #define AS_OPTIONS ""
5613 #define LD_OPTIONS ""
5617 #define EH_LD_OPTIONS "--eh-frame-hdr"
5619 #define EH_LD_OPTIONS ""
5622 if (acfg->aot_opts.asm_only) {
5623 printf ("Output file: '%s'.\n", acfg->tmpfname);
5624 if (acfg->aot_opts.static_link)
5625 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
5629 if (acfg->aot_opts.static_link) {
5630 if (acfg->aot_opts.outfile)
5631 objfile = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5633 objfile = g_strdup_printf ("%s.o", acfg->image->name);
5635 objfile = g_strdup_printf ("%s.o", acfg->tmpfname);
5637 command = g_strdup_printf ("%sas %s %s -o %s", tool_prefix, AS_OPTIONS, acfg->tmpfname, objfile);
5638 printf ("Executing the native assembler: %s\n", command);
5639 if (system (command) != 0) {
5647 if (acfg->aot_opts.static_link) {
5648 printf ("Output file: '%s'.\n", objfile);
5649 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
5654 if (acfg->aot_opts.outfile)
5655 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5657 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
5659 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
5662 command = g_strdup_printf ("ld -shared -G -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
5663 #elif defined(__ppc__) && defined(__MACH__)
5664 command = g_strdup_printf ("gcc -dynamiclib -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
5665 #elif defined(HOST_WIN32)
5666 command = g_strdup_printf ("gcc -shared --dll -mno-cygwin -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
5668 command = g_strdup_printf ("%sld %s %s -shared -o %s %s.o", tool_prefix, EH_LD_OPTIONS, LD_OPTIONS, tmp_outfile_name, acfg->tmpfname);
5670 printf ("Executing the native linker: %s\n", command);
5671 if (system (command) != 0) {
5672 g_free (tmp_outfile_name);
5673 g_free (outfile_name);
5681 /*com = g_strdup_printf ("strip --strip-unneeded %s%s", acfg->image->name, SHARED_EXT);
5682 printf ("Stripping the binary: %s\n", com);
5686 #if defined(TARGET_ARM) && !defined(__MACH__)
5688 * gas generates 'mapping symbols' each time code and data is mixed, which
5689 * happens a lot in emit_and_reloc_code (), so we need to get rid of them.
5691 command = g_strdup_printf ("%sstrip --strip-symbol=\\$a --strip-symbol=\\$d %s", tool_prefix, tmp_outfile_name);
5692 printf ("Stripping the binary: %s\n", command);
5693 if (system (command) != 0) {
5694 g_free (tmp_outfile_name);
5695 g_free (outfile_name);
5702 rename (tmp_outfile_name, outfile_name);
5704 g_free (tmp_outfile_name);
5705 g_free (outfile_name);
5708 if (acfg->aot_opts.save_temps)
5709 printf ("Retained input file.\n");
5711 unlink (acfg->tmpfname);
5716 static MonoAotCompile*
5717 acfg_create (MonoAssembly *ass, guint32 opts)
5719 MonoImage *image = ass->image;
5720 MonoAotCompile *acfg;
5723 acfg = g_new0 (MonoAotCompile, 1);
5724 acfg->methods = g_ptr_array_new ();
5725 acfg->method_indexes = g_hash_table_new (NULL, NULL);
5726 acfg->method_depth = g_hash_table_new (NULL, NULL);
5727 acfg->plt_offset_to_patch = g_hash_table_new (NULL, NULL);
5728 acfg->patch_to_plt_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
5729 acfg->patch_to_got_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
5730 acfg->patch_to_got_offset_by_type = g_new0 (GHashTable*, MONO_PATCH_INFO_NUM);
5731 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i)
5732 acfg->patch_to_got_offset_by_type [i] = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
5733 acfg->got_patches = g_ptr_array_new ();
5734 acfg->method_to_cfg = g_hash_table_new (NULL, NULL);
5735 acfg->token_info_hash = g_hash_table_new_full (NULL, NULL, NULL, g_free);
5736 acfg->image_hash = g_hash_table_new (NULL, NULL);
5737 acfg->image_table = g_ptr_array_new ();
5738 acfg->globals = g_ptr_array_new ();
5739 acfg->image = image;
5741 acfg->mempool = mono_mempool_new ();
5742 acfg->extra_methods = g_ptr_array_new ();
5743 acfg->unwind_info_offsets = g_hash_table_new (NULL, NULL);
5744 acfg->unwind_ops = g_ptr_array_new ();
5745 acfg->method_label_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
5746 InitializeCriticalSection (&acfg->mutex);
5752 acfg_free (MonoAotCompile *acfg)
5756 img_writer_destroy (acfg->w);
5757 for (i = 0; i < acfg->nmethods; ++i)
5759 g_free (acfg->cfgs [i]);
5760 g_free (acfg->cfgs);
5761 g_free (acfg->static_linking_symbol);
5762 g_free (acfg->got_symbol);
5763 g_free (acfg->plt_symbol);
5764 g_ptr_array_free (acfg->methods, TRUE);
5765 g_ptr_array_free (acfg->got_patches, TRUE);
5766 g_ptr_array_free (acfg->image_table, TRUE);
5767 g_ptr_array_free (acfg->globals, TRUE);
5768 g_ptr_array_free (acfg->unwind_ops, TRUE);
5769 g_hash_table_destroy (acfg->method_indexes);
5770 g_hash_table_destroy (acfg->method_depth);
5771 g_hash_table_destroy (acfg->plt_offset_to_patch);
5772 g_hash_table_destroy (acfg->patch_to_plt_offset);
5773 g_hash_table_destroy (acfg->patch_to_got_offset);
5774 g_hash_table_destroy (acfg->method_to_cfg);
5775 g_hash_table_destroy (acfg->token_info_hash);
5776 g_hash_table_destroy (acfg->image_hash);
5777 g_hash_table_destroy (acfg->unwind_info_offsets);
5778 g_hash_table_destroy (acfg->method_label_hash);
5779 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i)
5780 g_hash_table_destroy (acfg->patch_to_got_offset_by_type [i]);
5781 g_free (acfg->patch_to_got_offset_by_type);
5782 mono_mempool_destroy (acfg->mempool);
5787 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
5789 MonoImage *image = ass->image;
5791 MonoAotCompile *acfg;
5792 char *outfile_name, *tmp_outfile_name, *p;
5796 printf ("Mono Ahead of Time compiler - compiling assembly %s\n", image->name);
5798 acfg = acfg_create (ass, opts);
5800 memset (&acfg->aot_opts, 0, sizeof (acfg->aot_opts));
5801 acfg->aot_opts.write_symbols = TRUE;
5802 acfg->aot_opts.ntrampolines = 1024;
5803 acfg->aot_opts.nrgctx_trampolines = 1024;
5805 mono_aot_parse_options (aot_options, &acfg->aot_opts);
5807 if (acfg->aot_opts.static_link)
5808 acfg->aot_opts.autoreg = TRUE;
5810 //acfg->aot_opts.print_skipped_methods = TRUE;
5812 #ifndef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
5813 if (acfg->aot_opts.full_aot) {
5814 printf ("--aot=full is not supported on this platform.\n");
5819 if (acfg->aot_opts.static_link)
5820 acfg->aot_opts.asm_writer = TRUE;
5822 if (acfg->aot_opts.soft_debug) {
5823 MonoDebugOptions *opt = mini_get_debug_options ();
5825 opt->mdb_optimizations = TRUE;
5826 opt->gen_seq_points = TRUE;
5828 if (mono_debug_format == MONO_DEBUG_FORMAT_NONE) {
5829 fprintf (stderr, "The soft-debug AOT option requires the --debug option.\n");
5836 acfg->aot_opts.asm_writer = TRUE;
5837 acfg->flags |= MONO_AOT_FILE_FLAG_WITH_LLVM;
5840 if (acfg->aot_opts.full_aot)
5841 acfg->flags |= MONO_AOT_FILE_FLAG_FULL_AOT;
5843 load_profile_files (acfg);
5845 acfg->num_trampolines [MONO_AOT_TRAMP_SPECIFIC] = acfg->aot_opts.full_aot ? acfg->aot_opts.ntrampolines : 0;
5846 #ifdef MONO_ARCH_HAVE_STATIC_RGCTX_TRAMPOLINE
5847 acfg->num_trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = acfg->aot_opts.full_aot ? acfg->aot_opts.nrgctx_trampolines : 0;
5849 acfg->num_trampolines [MONO_AOT_TRAMP_IMT_THUNK] = acfg->aot_opts.full_aot ? 128 : 0;
5851 acfg->got_symbol_base = g_strdup_printf ("mono_aot_%s_got", acfg->image->assembly->aname.name);
5852 acfg->plt_symbol = g_strdup_printf ("mono_aot_%s_plt", acfg->image->assembly->aname.name);
5854 /* Get rid of characters which cannot occur in symbols */
5855 for (p = acfg->got_symbol_base; *p; ++p) {
5856 if (!(isalnum (*p) || *p == '_'))
5859 for (p = acfg->plt_symbol; *p; ++p) {
5860 if (!(isalnum (*p) || *p == '_'))
5864 acfg->temp_prefix = img_writer_get_temp_label_prefix (NULL);
5866 acfg->method_index = 1;
5868 collect_methods (acfg);
5870 acfg->cfgs_size = acfg->methods->len + 32;
5871 acfg->cfgs = g_new0 (MonoCompile*, acfg->cfgs_size);
5873 /* PLT offset 0 is reserved for the PLT trampoline */
5874 acfg->plt_offset = 1;
5878 mono_llvm_create_aot_module (acfg->got_symbol_base);
5881 /* GOT offset 0 is reserved for the address of the current assembly */
5885 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
5886 ji->type = MONO_PATCH_INFO_IMAGE;
5887 ji->data.image = acfg->image;
5889 get_got_offset (acfg, ji);
5891 /* Slot 1 is reserved for the mscorlib got addr */
5892 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
5893 ji->type = MONO_PATCH_INFO_MSCORLIB_GOT_ADDR;
5894 get_got_offset (acfg, ji);
5899 compile_methods (acfg);
5903 acfg->stats.jit_time = TV_ELAPSED (atv, btv);
5909 if (acfg->aot_opts.asm_only) {
5910 if (acfg->aot_opts.outfile)
5911 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5913 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
5915 acfg->tmpfname = g_strdup ("temp.s");
5919 emit_llvm_file (acfg);
5922 if (!acfg->aot_opts.asm_only && !acfg->aot_opts.asm_writer && bin_writer_supported ()) {
5923 if (acfg->aot_opts.outfile)
5924 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5926 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
5929 * Can't use g_file_open_tmp () as it will be deleted at exit, and
5930 * it might be in another file system so the rename () won't work.
5932 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
5934 acfg->fp = fopen (tmp_outfile_name, "w");
5936 printf ("Unable to create temporary file '%s': %s\n", tmp_outfile_name, strerror (errno));
5940 acfg->w = img_writer_create (acfg->fp, TRUE);
5941 acfg->use_bin_writer = TRUE;
5944 /* Append to the .s file created by llvm */
5945 /* FIXME: Use multiple files instead */
5946 acfg->fp = fopen (acfg->tmpfname, "a+");
5948 if (acfg->aot_opts.asm_only) {
5949 if (acfg->aot_opts.outfile)
5950 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5952 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
5953 acfg->fp = fopen (acfg->tmpfname, "w+");
5955 int i = g_file_open_tmp ("mono_aot_XXXXXX", &acfg->tmpfname, NULL);
5956 acfg->fp = fdopen (i, "w+");
5958 g_assert (acfg->fp);
5960 acfg->w = img_writer_create (acfg->fp, FALSE);
5962 tmp_outfile_name = NULL;
5963 outfile_name = NULL;
5967 * The prefix LLVM likes to put in front of symbol names on darwin.
5968 * The mach-os specs require this for globals, but LLVM puts them in front of all
5969 * symbols. We need to handle this, since we need to refer to LLVM generated
5972 acfg->llvm_label_prefix = "";
5974 acfg->llvm_label_prefix = LLVM_LABEL_PREFIX;
5976 acfg->got_symbol = g_strdup_printf ("%s%s", acfg->llvm_label_prefix, acfg->got_symbol_base);
5978 /* Compute symbols for methods */
5979 for (i = 0; i < acfg->nmethods; ++i) {
5980 if (acfg->cfgs [i]) {
5981 MonoCompile *cfg = acfg->cfgs [i];
5982 int method_index = get_method_index (acfg, cfg->orig_method);
5984 cfg->asm_symbol = g_strdup_printf ("%s%sm_%x", acfg->temp_prefix, LLVM_LABEL_PREFIX, method_index);
5988 if (!acfg->aot_opts.nodebug)
5989 acfg->dwarf = mono_dwarf_writer_create (acfg->w, NULL, 0, FALSE);
5991 img_writer_emit_start (acfg->w);
5994 mono_dwarf_writer_emit_base_info (acfg->dwarf, mono_arch_get_cie_program ());
6000 emit_extra_methods (acfg);
6002 emit_trampolines (acfg);
6004 emit_class_name_table (acfg);
6006 emit_got_info (acfg);
6008 emit_exception_info (acfg);
6010 emit_unwind_info (acfg);
6012 emit_class_info (acfg);
6016 emit_image_table (acfg);
6020 emit_file_info (acfg);
6024 emit_globals (acfg);
6026 emit_autoreg (acfg);
6029 emit_dwarf_info (acfg);
6030 mono_dwarf_writer_close (acfg->dwarf);
6033 emit_mem_end (acfg);
6037 acfg->stats.gen_time = TV_ELAPSED (atv, btv);
6040 g_assert (acfg->got_offset <= acfg->final_got_size);
6042 printf ("Code: %d Info: %d Ex Info: %d Unwind Info: %d Class Info: %d PLT: %d GOT Info: %d GOT: %d Offsets: %d\n", acfg->stats.code_size, acfg->stats.info_size, acfg->stats.ex_info_size, acfg->stats.unwind_info_size, acfg->stats.class_info_size, acfg->plt_offset, acfg->stats.got_info_size, (int)(acfg->got_offset * sizeof (gpointer)), acfg->stats.offsets_size);
6045 res = img_writer_emit_writeout (acfg->w);
6050 if (acfg->use_bin_writer) {
6051 int err = rename (tmp_outfile_name, outfile_name);
6054 printf ("Unable to rename '%s' to '%s': %s\n", tmp_outfile_name, outfile_name, strerror (errno));
6058 res = compile_asm (acfg);
6065 acfg->stats.link_time = TV_ELAPSED (atv, btv);
6067 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);
6068 if (acfg->stats.genericcount)
6069 printf ("%d methods are generic (%d%%)\n", acfg->stats.genericcount, acfg->stats.mcount ? (acfg->stats.genericcount * 100) / acfg->stats.mcount : 100);
6070 if (acfg->stats.abscount)
6071 printf ("%d methods contain absolute addresses (%d%%)\n", acfg->stats.abscount, acfg->stats.mcount ? (acfg->stats.abscount * 100) / acfg->stats.mcount : 100);
6072 if (acfg->stats.lmfcount)
6073 printf ("%d methods contain lmf pointers (%d%%)\n", acfg->stats.lmfcount, acfg->stats.mcount ? (acfg->stats.lmfcount * 100) / acfg->stats.mcount : 100);
6074 if (acfg->stats.ocount)
6075 printf ("%d methods have other problems (%d%%)\n", acfg->stats.ocount, acfg->stats.mcount ? (acfg->stats.ocount * 100) / acfg->stats.mcount : 100);
6077 printf ("Methods compiled with LLVM: %d (%d%%)\n", acfg->stats.llvm_count, acfg->stats.mcount ? (acfg->stats.llvm_count * 100) / acfg->stats.mcount : 100);
6078 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);
6079 printf ("Direct calls: %d (%d%%)\n", acfg->stats.direct_calls, acfg->stats.all_calls ? (acfg->stats.direct_calls * 100) / acfg->stats.all_calls : 100);
6081 if (acfg->aot_opts.stats) {
6084 printf ("GOT slot distribution:\n");
6085 for (i = 0; i < MONO_PATCH_INFO_NONE; ++i)
6086 if (acfg->stats.got_slot_types [i])
6087 printf ("\t%s: %d\n", get_patch_name (i), acfg->stats.got_slot_types [i]);
6090 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);
6102 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)