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_wrapper_info_from_wrapper (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 int alloc_type = mono_gc_get_managed_allocator_type (method);
1630 g_assert (alloc_type != -1);
1631 encode_value (alloc_type, p, &p);
1634 case MONO_WRAPPER_STELEMREF:
1636 case MONO_WRAPPER_UNKNOWN:
1637 if (strcmp (method->name, "FastMonitorEnter") == 0)
1638 encode_value (MONO_AOT_WRAPPER_MONO_ENTER, p, &p);
1639 else if (strcmp (method->name, "FastMonitorExit") == 0)
1640 encode_value (MONO_AOT_WRAPPER_MONO_EXIT, p, &p);
1642 g_assert_not_reached ();
1644 case MONO_WRAPPER_SYNCHRONIZED:
1645 case MONO_WRAPPER_MANAGED_TO_NATIVE:
1646 case MONO_WRAPPER_RUNTIME_INVOKE: {
1649 m = mono_marshal_method_from_wrapper (method);
1651 g_assert (m != method);
1652 encode_method_ref (acfg, m, p, &p);
1655 case MONO_WRAPPER_MANAGED_TO_MANAGED:
1656 if (!strcmp (method->name, "ElementAddr")) {
1657 ElementAddrWrapperInfo *info = mono_marshal_wrapper_info_from_wrapper (method);
1660 encode_value (MONO_AOT_WRAPPER_ELEMENT_ADDR, p, &p);
1661 encode_value (info->rank, p, &p);
1662 encode_value (info->elem_size, p, &p);
1664 g_assert_not_reached ();
1668 g_assert_not_reached ();
1670 } else if (mono_method_signature (method)->is_inflated) {
1672 * This is a generic method, find the original token which referenced it and
1674 * Obtain the token from information recorded by the JIT.
1676 ji = g_hash_table_lookup (acfg->token_info_hash, method);
1678 image_index = get_image_index (acfg, ji->image);
1679 g_assert (image_index < MAX_IMAGE_INDEX);
1682 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
1683 encode_value (image_index, p, &p);
1684 encode_value (token, p, &p);
1686 MonoMethod *declaring;
1687 MonoGenericContext *context = mono_method_get_context (method);
1689 g_assert (method->is_inflated);
1690 declaring = ((MonoMethodInflated*)method)->declaring;
1693 * This might be a non-generic method of a generic instance, which
1694 * doesn't have a token since the reference is generated by the JIT
1695 * like Nullable:Box/Unbox, or by generic sharing.
1698 encode_value ((MONO_AOT_METHODREF_GINST << 24), p, &p);
1699 /* Encode the klass */
1700 encode_klass_ref (acfg, method->klass, p, &p);
1701 /* Encode the method */
1702 image_index = get_image_index (acfg, method->klass->image);
1703 g_assert (image_index < MAX_IMAGE_INDEX);
1704 g_assert (declaring->token);
1705 token = declaring->token;
1706 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
1707 encode_value (image_index, p, &p);
1708 encode_value (token, p, &p);
1709 encode_generic_context (acfg, context, p, &p);
1711 } else if (token == 0) {
1712 /* This might be a method of a constructed type like int[,].Set */
1713 /* Obtain the token from information recorded by the JIT */
1714 ji = g_hash_table_lookup (acfg->token_info_hash, method);
1716 image_index = get_image_index (acfg, ji->image);
1717 g_assert (image_index < MAX_IMAGE_INDEX);
1720 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
1721 encode_value (image_index, p, &p);
1722 encode_value (token, p, &p);
1725 g_assert (method->klass->rank);
1727 /* Encode directly */
1728 encode_value ((MONO_AOT_METHODREF_ARRAY << 24), p, &p);
1729 encode_klass_ref (acfg, method->klass, p, &p);
1730 if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank)
1731 encode_value (0, p, &p);
1732 else if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank * 2)
1733 encode_value (1, p, &p);
1734 else if (!strcmp (method->name, "Get"))
1735 encode_value (2, p, &p);
1736 else if (!strcmp (method->name, "Address"))
1737 encode_value (3, p, &p);
1738 else if (!strcmp (method->name, "Set"))
1739 encode_value (4, p, &p);
1741 g_assert_not_reached ();
1744 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
1745 encode_value ((image_index << 24) | mono_metadata_token_index (token), p, &p);
1751 compare_patches (gconstpointer a, gconstpointer b)
1755 i = (*(MonoJumpInfo**)a)->ip.i;
1756 j = (*(MonoJumpInfo**)b)->ip.i;
1770 * Return whenever PATCH_INFO refers to a direct call, and thus requires a
1773 static inline gboolean
1774 is_plt_patch (MonoJumpInfo *patch_info)
1776 switch (patch_info->type) {
1777 case MONO_PATCH_INFO_METHOD:
1778 case MONO_PATCH_INFO_INTERNAL_METHOD:
1779 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
1780 case MONO_PATCH_INFO_ICALL_ADDR:
1781 case MONO_PATCH_INFO_CLASS_INIT:
1782 case MONO_PATCH_INFO_RGCTX_FETCH:
1783 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
1784 case MONO_PATCH_INFO_MONITOR_ENTER:
1785 case MONO_PATCH_INFO_MONITOR_EXIT:
1786 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
1794 get_plt_offset (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
1798 if (is_plt_patch (patch_info)) {
1799 int idx = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_plt_offset, patch_info));
1801 // FIXME: This breaks the calculation of final_got_size
1802 if (!acfg->llvm && patch_info->type == MONO_PATCH_INFO_METHOD && (patch_info->data.method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)) {
1804 * Allocate a separate PLT slot for each such patch, since some plt
1805 * entries will refer to the method itself, and some will refer to the
1814 MonoJumpInfo *new_ji = mono_patch_info_dup_mp (acfg->mempool, patch_info);
1816 g_assert (!acfg->final_got_size);
1818 res = acfg->plt_offset;
1819 g_hash_table_insert (acfg->plt_offset_to_patch, GUINT_TO_POINTER (res), new_ji);
1820 g_hash_table_insert (acfg->patch_to_plt_offset, new_ji, GUINT_TO_POINTER (res));
1821 acfg->plt_offset ++;
1831 * Returns the offset of the GOT slot where the runtime object resulting from resolving
1832 * JI could be found if it exists, otherwise allocates a new one.
1835 get_got_offset (MonoAotCompile *acfg, MonoJumpInfo *ji)
1839 got_offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_got_offset_by_type [ji->type], ji));
1841 return got_offset - 1;
1843 got_offset = acfg->got_offset;
1844 acfg->got_offset ++;
1846 if (acfg->final_got_size)
1847 g_assert (got_offset < acfg->final_got_size);
1849 acfg->stats.got_slots ++;
1850 acfg->stats.got_slot_types [ji->type] ++;
1852 g_hash_table_insert (acfg->patch_to_got_offset, ji, GUINT_TO_POINTER (got_offset + 1));
1853 g_hash_table_insert (acfg->patch_to_got_offset_by_type [ji->type], ji, GUINT_TO_POINTER (got_offset + 1));
1854 g_ptr_array_add (acfg->got_patches, ji);
1859 /* Add a method to the list of methods which need to be emitted */
1861 add_method_with_index (MonoAotCompile *acfg, MonoMethod *method, int index, gboolean extra)
1864 if (!g_hash_table_lookup (acfg->method_indexes, method)) {
1865 g_ptr_array_add (acfg->methods, method);
1866 g_hash_table_insert (acfg->method_indexes, method, GUINT_TO_POINTER (index + 1));
1867 acfg->nmethods = acfg->methods->len + 1;
1870 if (method->wrapper_type || extra)
1871 g_ptr_array_add (acfg->extra_methods, method);
1875 get_method_index (MonoAotCompile *acfg, MonoMethod *method)
1877 int index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
1885 add_method_full (MonoAotCompile *acfg, MonoMethod *method, gboolean extra, int depth)
1889 index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
1893 index = acfg->method_index;
1894 add_method_with_index (acfg, method, index, extra);
1896 /* FIXME: Fix quadratic behavior */
1897 acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (index));
1899 g_hash_table_insert (acfg->method_depth, method, GUINT_TO_POINTER (depth));
1901 acfg->method_index ++;
1907 add_method (MonoAotCompile *acfg, MonoMethod *method)
1909 return add_method_full (acfg, method, FALSE, 0);
1913 add_extra_method (MonoAotCompile *acfg, MonoMethod *method)
1915 add_method_full (acfg, method, TRUE, 0);
1919 add_extra_method_with_depth (MonoAotCompile *acfg, MonoMethod *method, int depth)
1921 add_method_full (acfg, method, TRUE, depth);
1925 add_jit_icall_wrapper (gpointer key, gpointer value, gpointer user_data)
1927 MonoAotCompile *acfg = user_data;
1928 MonoJitICallInfo *callinfo = value;
1929 MonoMethod *wrapper;
1935 name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
1936 wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_for_pending_exc);
1939 add_method (acfg, wrapper);
1943 get_runtime_invoke_sig (MonoMethodSignature *sig)
1945 MonoMethodBuilder *mb;
1948 mb = mono_mb_new (mono_defaults.object_class, "FOO", MONO_WRAPPER_NONE);
1949 m = mono_mb_create_method (mb, sig, 16);
1950 return mono_marshal_get_runtime_invoke (m, FALSE);
1954 can_marshal_struct (MonoClass *klass)
1956 MonoClassField *field;
1957 gboolean can_marshal = TRUE;
1958 gpointer iter = NULL;
1960 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1963 /* Only allow a few field types to avoid asserts in the marshalling code */
1964 while ((field = mono_class_get_fields (klass, &iter))) {
1965 if ((field->type->attrs & FIELD_ATTRIBUTE_STATIC))
1968 switch (field->type->type) {
1973 case MONO_TYPE_BOOLEAN:
1976 case MONO_TYPE_CHAR:
1984 case MONO_TYPE_STRING:
1986 case MONO_TYPE_VALUETYPE:
1987 if (!mono_class_from_mono_type (field->type)->enumtype && !can_marshal_struct (mono_class_from_mono_type (field->type)))
1988 can_marshal = FALSE;
1991 can_marshal = FALSE;
1997 /* Its hard to compute whenever these can be marshalled or not */
1998 if (!strcmp (klass->name_space, "System.Net.NetworkInformation.MacOsStructs"))
2005 add_wrappers (MonoAotCompile *acfg)
2007 MonoMethod *method, *m;
2009 MonoMethodSignature *sig, *csig;
2013 * FIXME: Instead of AOTing all the wrappers, it might be better to redesign them
2014 * so there is only one wrapper of a given type, or inlining their contents into their
2019 * FIXME: This depends on the fact that different wrappers have different
2023 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2025 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2026 gboolean skip = FALSE;
2028 method = mono_get_method (acfg->image, token, NULL);
2030 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2031 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
2032 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
2035 if (method->is_generic || method->klass->generic_container)
2038 /* Skip methods which can not be handled by get_runtime_invoke () */
2039 sig = mono_method_signature (method);
2040 if ((sig->ret->type == MONO_TYPE_PTR) ||
2041 (sig->ret->type == MONO_TYPE_TYPEDBYREF))
2044 for (j = 0; j < sig->param_count; j++) {
2045 if (sig->params [j]->type == MONO_TYPE_TYPEDBYREF)
2049 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
2050 if (!method->klass->contextbound) {
2051 MonoDynCallInfo *info = mono_arch_dyn_call_prepare (sig);
2052 gboolean has_nullable = FALSE;
2054 for (j = 0; j < sig->param_count; j++) {
2055 if (sig->params [j]->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (sig->params [j])))
2056 has_nullable = TRUE;
2059 if (info && !has_nullable) {
2060 /* Supported by the dynamic runtime-invoke wrapper */
2068 //printf ("%s\n", mono_method_full_name (method, TRUE));
2069 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
2073 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
2074 #ifdef MONO_ARCH_HAVE_TLS_GET
2075 MonoMethodDesc *desc;
2076 MonoMethod *orig_method;
2080 /* Runtime invoke wrappers */
2082 /* void runtime-invoke () [.cctor] */
2083 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2084 csig->ret = &mono_defaults.void_class->byval_arg;
2085 add_method (acfg, get_runtime_invoke_sig (csig));
2087 /* void runtime-invoke () [Finalize] */
2088 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2090 csig->ret = &mono_defaults.void_class->byval_arg;
2091 add_method (acfg, get_runtime_invoke_sig (csig));
2093 /* void runtime-invoke (string) [exception ctor] */
2094 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2096 csig->ret = &mono_defaults.void_class->byval_arg;
2097 csig->params [0] = &mono_defaults.string_class->byval_arg;
2098 add_method (acfg, get_runtime_invoke_sig (csig));
2100 /* void runtime-invoke (string, string) [exception ctor] */
2101 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2103 csig->ret = &mono_defaults.void_class->byval_arg;
2104 csig->params [0] = &mono_defaults.string_class->byval_arg;
2105 csig->params [1] = &mono_defaults.string_class->byval_arg;
2106 add_method (acfg, get_runtime_invoke_sig (csig));
2108 /* string runtime-invoke () [Exception.ToString ()] */
2109 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2111 csig->ret = &mono_defaults.string_class->byval_arg;
2112 add_method (acfg, get_runtime_invoke_sig (csig));
2114 /* void runtime-invoke (string, Exception) [exception ctor] */
2115 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2117 csig->ret = &mono_defaults.void_class->byval_arg;
2118 csig->params [0] = &mono_defaults.string_class->byval_arg;
2119 csig->params [1] = &mono_defaults.exception_class->byval_arg;
2120 add_method (acfg, get_runtime_invoke_sig (csig));
2122 /* Assembly runtime-invoke (string, bool) [DoAssemblyResolve] */
2123 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2125 csig->ret = &(mono_class_from_name (
2126 mono_defaults.corlib, "System.Reflection", "Assembly"))->byval_arg;
2127 csig->params [0] = &mono_defaults.string_class->byval_arg;
2128 csig->params [1] = &mono_defaults.boolean_class->byval_arg;
2129 add_method (acfg, get_runtime_invoke_sig (csig));
2131 /* runtime-invoke used by finalizers */
2132 add_method (acfg, mono_marshal_get_runtime_invoke (mono_class_get_method_from_name_flags (mono_defaults.object_class, "Finalize", 0, 0), TRUE));
2134 /* This is used by mono_runtime_capture_context () */
2135 method = mono_get_context_capture_method ();
2137 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
2139 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
2140 add_method (acfg, mono_marshal_get_runtime_invoke_dynamic ());
2143 /* JIT icall wrappers */
2144 /* FIXME: locking */
2145 g_hash_table_foreach (mono_get_jit_icall_info (), add_jit_icall_wrapper, acfg);
2148 add_method (acfg, mono_marshal_get_stelemref ());
2150 #ifdef MONO_ARCH_HAVE_TLS_GET
2151 /* Managed Allocators */
2152 nallocators = mono_gc_get_managed_allocator_types ();
2153 for (i = 0; i < nallocators; ++i) {
2154 m = mono_gc_get_managed_allocator_by_type (i);
2156 add_method (acfg, m);
2159 /* Monitor Enter/Exit */
2160 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
2161 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
2162 g_assert (orig_method);
2163 mono_method_desc_free (desc);
2164 method = mono_monitor_get_fast_path (orig_method);
2166 add_method (acfg, method);
2168 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
2169 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
2170 g_assert (orig_method);
2171 mono_method_desc_free (desc);
2172 method = mono_monitor_get_fast_path (orig_method);
2174 add_method (acfg, method);
2179 * remoting-invoke-with-check wrappers are very frequent, so avoid emitting them,
2180 * we use the original method instead at runtime.
2181 * Since full-aot doesn't support remoting, this is not a problem.
2184 /* remoting-invoke wrappers */
2185 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2186 MonoMethodSignature *sig;
2188 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2189 method = mono_get_method (acfg->image, token, NULL);
2191 sig = mono_method_signature (method);
2193 if (sig->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class)) {
2194 m = mono_marshal_get_remoting_invoke_with_check (method);
2196 add_method (acfg, m);
2201 /* delegate-invoke wrappers */
2202 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
2205 token = MONO_TOKEN_TYPE_DEF | (i + 1);
2206 klass = mono_class_get (acfg->image, token);
2208 if (klass->delegate && klass != mono_defaults.delegate_class && klass != mono_defaults.multicastdelegate_class && !klass->generic_container) {
2209 method = mono_get_delegate_invoke (klass);
2211 m = mono_marshal_get_delegate_invoke (method, NULL);
2213 add_method (acfg, m);
2215 method = mono_class_get_method_from_name_flags (klass, "BeginInvoke", -1, 0);
2216 add_method (acfg, mono_marshal_get_delegate_begin_invoke (method));
2218 method = mono_class_get_method_from_name_flags (klass, "EndInvoke", -1, 0);
2219 add_method (acfg, mono_marshal_get_delegate_end_invoke (method));
2223 /* Synchronized wrappers */
2224 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2225 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2226 method = mono_get_method (acfg->image, token, NULL);
2228 if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED && !method->is_generic)
2229 add_method (acfg, mono_marshal_get_synchronized_wrapper (method));
2232 /* pinvoke wrappers */
2233 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2235 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2237 method = mono_get_method (acfg->image, token, NULL);
2239 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2240 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
2241 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
2245 /* native-to-managed wrappers */
2246 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2248 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2249 MonoCustomAttrInfo *cattr;
2252 method = mono_get_method (acfg->image, token, NULL);
2255 * Only generate native-to-managed wrappers for methods which have an
2256 * attribute named MonoPInvokeCallbackAttribute. We search for the attribute by
2257 * name to avoid defining a new assembly to contain it.
2259 cattr = mono_custom_attrs_from_method (method);
2262 for (j = 0; j < cattr->num_attrs; ++j)
2263 if (cattr->attrs [j].ctor && !strcmp (cattr->attrs [j].ctor->klass->name, "MonoPInvokeCallbackAttribute"))
2265 if (j < cattr->num_attrs) {
2266 MonoCustomAttrEntry *e = &cattr->attrs [j];
2267 MonoMethodSignature *sig = mono_method_signature (e->ctor);
2268 const char *p = (const char*)e->data;
2274 g_assert (method->flags & METHOD_ATTRIBUTE_STATIC);
2276 g_assert (sig->param_count == 1);
2277 g_assert (sig->params [0]->type == MONO_TYPE_CLASS && !strcmp (mono_class_from_mono_type (sig->params [0])->name, "Type"));
2280 * Decode the cattr manually since we can't create objects
2281 * during aot compilation.
2287 /* From load_cattr_value () in reflection.c */
2288 slen = mono_metadata_decode_value (p, &p);
2289 n = g_memdup (p, slen + 1);
2291 t = mono_reflection_type_from_name (n, acfg->image);
2295 klass = mono_class_from_mono_type (t);
2296 g_assert (klass->parent == mono_defaults.multicastdelegate_class);
2298 add_method (acfg, mono_marshal_get_managed_wrapper (method, klass, NULL));
2302 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2303 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
2304 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
2308 /* StructureToPtr/PtrToStructure wrappers */
2309 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
2312 token = MONO_TOKEN_TYPE_DEF | (i + 1);
2313 klass = mono_class_get (acfg->image, token);
2315 if (klass->valuetype && !klass->generic_container && can_marshal_struct (klass)) {
2316 add_method (acfg, mono_marshal_get_struct_to_ptr (klass));
2317 add_method (acfg, mono_marshal_get_ptr_to_struct (klass));
2323 has_type_vars (MonoClass *klass)
2325 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
2328 return has_type_vars (klass->element_class);
2329 if (klass->generic_class) {
2330 MonoGenericContext *context = &klass->generic_class->context;
2331 if (context->class_inst) {
2334 for (i = 0; i < context->class_inst->type_argc; ++i)
2335 if (has_type_vars (mono_class_from_mono_type (context->class_inst->type_argv [i])))
2343 method_has_type_vars (MonoMethod *method)
2345 if (has_type_vars (method->klass))
2348 if (method->is_inflated) {
2349 MonoGenericContext *context = mono_method_get_context (method);
2350 if (context->method_inst) {
2353 for (i = 0; i < context->method_inst->type_argc; ++i)
2354 if (has_type_vars (mono_class_from_mono_type (context->method_inst->type_argv [i])))
2362 * add_generic_class:
2364 * Add all methods of a generic class.
2367 add_generic_class (MonoAotCompile *acfg, MonoClass *klass)
2372 mono_class_init (klass);
2374 if (klass->generic_class && klass->generic_class->context.class_inst->is_open)
2377 if (has_type_vars (klass))
2380 if (!klass->generic_class && !klass->rank)
2384 while ((method = mono_class_get_methods (klass, &iter))) {
2385 if (mono_method_is_generic_sharable_impl (method, FALSE))
2389 if (method->is_generic)
2394 * FIXME: Instances which are referenced by these methods are not added,
2395 * for example Array.Resize<int> for List<int>.Add ().
2397 add_extra_method (acfg, method);
2400 if (klass->delegate) {
2401 method = mono_get_delegate_invoke (klass);
2403 method = mono_marshal_get_delegate_invoke (method, NULL);
2405 add_method (acfg, method);
2409 * For ICollection<T>, add instances of the helper methods
2410 * in Array, since a T[] could be cast to ICollection<T>.
2412 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") &&
2413 (!strcmp(klass->name, "ICollection`1") || !strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IList`1") || !strcmp (klass->name, "IEnumerator`1"))) {
2414 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
2415 MonoClass *array_class = mono_bounded_array_class_get (tclass, 1, FALSE);
2419 if (!strcmp (klass->name, "IEnumerator`1"))
2420 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, "IEnumerable`1");
2422 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
2424 /* Add the T[]/InternalEnumerator class */
2425 if (!strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IEnumerator`1")) {
2429 while ((nclass = mono_class_get_nested_types (array_class->parent, &iter))) {
2430 if (!strcmp (nclass->name, "InternalEnumerator`1"))
2434 nclass = mono_class_inflate_generic_class (nclass, mono_generic_class_get_context (klass->generic_class));
2435 add_generic_class (acfg, nclass);
2439 while ((method = mono_class_get_methods (array_class, &iter))) {
2440 if (strstr (method->name, name_prefix)) {
2441 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
2442 add_extra_method (acfg, m);
2446 g_free (name_prefix);
2449 /* Add an instance of GenericComparer<T> which is created dynamically by Comparer<T> */
2450 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "Comparer`1")) {
2451 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
2452 MonoClass *icomparable, *gcomparer;
2453 MonoGenericContext ctx;
2454 MonoType *args [16];
2456 memset (&ctx, 0, sizeof (ctx));
2458 icomparable = mono_class_from_name (mono_defaults.corlib, "System", "IComparable`1");
2459 g_assert (icomparable);
2460 args [0] = &tclass->byval_arg;
2461 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2463 if (mono_class_is_assignable_from (mono_class_inflate_generic_class (icomparable, &ctx), tclass)) {
2464 gcomparer = mono_class_from_name (mono_defaults.corlib, "System.Collections.Generic", "GenericComparer`1");
2465 g_assert (gcomparer);
2466 add_generic_class (acfg, mono_class_inflate_generic_class (gcomparer, &ctx));
2472 add_instances_of (MonoAotCompile *acfg, MonoClass *klass, MonoType **insts, int ninsts)
2475 MonoGenericContext ctx;
2476 MonoType *args [16];
2478 memset (&ctx, 0, sizeof (ctx));
2480 for (i = 0; i < ninsts; ++i) {
2481 args [0] = insts [i];
2482 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2483 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2488 * add_generic_instances:
2490 * Add instances referenced by the METHODSPEC/TYPESPEC table.
2493 add_generic_instances (MonoAotCompile *acfg)
2498 MonoMethodHeader *header;
2499 MonoMethodSignature *sig;
2500 MonoGenericContext *context;
2502 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHODSPEC].rows; ++i) {
2503 token = MONO_TOKEN_METHOD_SPEC | (i + 1);
2504 method = mono_get_method (acfg->image, token, NULL);
2506 context = mono_method_get_context (method);
2507 if (context && ((context->class_inst && context->class_inst->is_open) ||
2508 (context->method_inst && context->method_inst->is_open)))
2511 if (method->klass->image != acfg->image)
2514 if (mono_method_is_generic_sharable_impl (method, FALSE))
2518 add_extra_method (acfg, method);
2521 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
2524 token = MONO_TOKEN_TYPE_SPEC | (i + 1);
2526 klass = mono_class_get (acfg->image, token);
2527 if (!klass || klass->rank)
2530 add_generic_class (acfg, klass);
2533 /* Add types of args/locals */
2534 for (i = 0; i < acfg->methods->len; ++i) {
2537 method = g_ptr_array_index (acfg->methods, i);
2539 sig = mono_method_signature (method);
2542 for (j = 0; j < sig->param_count; ++j)
2543 if (sig->params [j]->type == MONO_TYPE_GENERICINST)
2544 add_generic_class (acfg, mono_class_from_mono_type (sig->params [j]));
2547 header = mono_method_get_header (method);
2550 for (j = 0; j < header->num_locals; ++j)
2551 if (header->locals [j]->type == MONO_TYPE_GENERICINST)
2552 add_generic_class (acfg, mono_class_from_mono_type (header->locals [j]));
2556 if (acfg->image == mono_defaults.corlib) {
2558 MonoType *insts [256];
2561 insts [ninsts ++] = &mono_defaults.byte_class->byval_arg;
2562 insts [ninsts ++] = &mono_defaults.sbyte_class->byval_arg;
2563 insts [ninsts ++] = &mono_defaults.int16_class->byval_arg;
2564 insts [ninsts ++] = &mono_defaults.uint16_class->byval_arg;
2565 insts [ninsts ++] = &mono_defaults.int32_class->byval_arg;
2566 insts [ninsts ++] = &mono_defaults.uint32_class->byval_arg;
2567 insts [ninsts ++] = &mono_defaults.int64_class->byval_arg;
2568 insts [ninsts ++] = &mono_defaults.uint64_class->byval_arg;
2569 insts [ninsts ++] = &mono_defaults.single_class->byval_arg;
2570 insts [ninsts ++] = &mono_defaults.double_class->byval_arg;
2571 insts [ninsts ++] = &mono_defaults.char_class->byval_arg;
2572 insts [ninsts ++] = &mono_defaults.boolean_class->byval_arg;
2574 /* Add GenericComparer<T> instances for primitive types for Enum.ToString () */
2575 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericComparer`1");
2577 add_instances_of (acfg, klass, insts, ninsts);
2578 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericEqualityComparer`1");
2580 add_instances_of (acfg, klass, insts, ninsts);
2582 /* Add instances of the array generic interfaces for primitive types */
2583 /* This will add instances of the InternalArray_ helper methods in Array too */
2584 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "ICollection`1");
2586 add_instances_of (acfg, klass, insts, ninsts);
2587 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "IList`1");
2589 add_instances_of (acfg, klass, insts, ninsts);
2590 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "IEnumerable`1");
2592 add_instances_of (acfg, klass, insts, ninsts);
2595 * Add a managed-to-native wrapper of Array.GetGenericValueImpl<object>, which is
2596 * used for all instances of GetGenericValueImpl by the AOT runtime.
2599 MonoGenericContext ctx;
2600 MonoType *args [16];
2601 MonoMethod *get_method;
2602 MonoClass *array_klass = mono_array_class_get (mono_defaults.object_class, 1)->parent;
2604 get_method = mono_class_get_method_from_name (array_klass, "GetGenericValueImpl", 2);
2607 memset (&ctx, 0, sizeof (ctx));
2608 args [0] = &mono_defaults.object_class->byval_arg;
2609 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
2610 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (get_method, &ctx), TRUE, TRUE));
2617 * is_direct_callable:
2619 * Return whenever the method identified by JI is directly callable without
2620 * going through the PLT.
2623 is_direct_callable (MonoAotCompile *acfg, MonoMethod *method, MonoJumpInfo *patch_info)
2625 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
2626 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
2628 gboolean direct_callable = TRUE;
2630 if (direct_callable && !(!callee_cfg->has_got_slots && (callee_cfg->method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)))
2631 direct_callable = FALSE;
2632 if ((callee_cfg->method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) && (!method || method->wrapper_type != MONO_WRAPPER_SYNCHRONIZED))
2633 // FIXME: Maybe call the wrapper directly ?
2634 direct_callable = FALSE;
2636 if (direct_callable)
2645 * emit_and_reloc_code:
2647 * Emit the native code in CODE, handling relocations along the way. If GOT_ONLY
2648 * is true, calls are made through the GOT too. This is used for emitting trampolines
2649 * in full-aot mode, since calls made from trampolines couldn't go through the PLT,
2650 * since trampolines are needed to make PTL work.
2653 emit_and_reloc_code (MonoAotCompile *acfg, MonoMethod *method, guint8 *code, guint32 code_len, MonoJumpInfo *relocs, gboolean got_only)
2655 int i, pindex, start_index, method_index;
2657 MonoJumpInfo *patch_info;
2658 MonoMethodHeader *header;
2659 gboolean skip, direct_call;
2661 char direct_call_target [128];
2664 header = mono_method_get_header (method);
2666 method_index = get_method_index (acfg, method);
2669 /* Collect and sort relocations */
2670 patches = g_ptr_array_new ();
2671 for (patch_info = relocs; patch_info; patch_info = patch_info->next)
2672 g_ptr_array_add (patches, patch_info);
2673 g_ptr_array_sort (patches, compare_patches);
2676 for (i = 0; i < code_len; i++) {
2678 for (pindex = start_index; pindex < patches->len; ++pindex) {
2679 patch_info = g_ptr_array_index (patches, pindex);
2680 if (patch_info->ip.i >= i)
2684 #ifdef MONO_ARCH_AOT_SUPPORTED
2686 if (patch_info && (patch_info->ip.i == i) && (pindex < patches->len)) {
2687 start_index = pindex;
2689 switch (patch_info->type) {
2690 case MONO_PATCH_INFO_NONE:
2692 case MONO_PATCH_INFO_GOT_OFFSET: {
2695 arch_emit_got_offset (acfg, code + i, &code_size);
2698 patch_info->type = MONO_PATCH_INFO_NONE;
2703 * If this patch is a call, try emitting a direct call instead of
2704 * through a PLT entry. This is possible if the called method is in
2705 * the same assembly and requires no initialization.
2707 direct_call = FALSE;
2708 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
2709 if (!got_only && is_direct_callable (acfg, method, patch_info)) {
2710 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
2711 //printf ("DIRECT: %s %s\n", method ? mono_method_full_name (method, TRUE) : "", mono_method_full_name (callee_cfg->method, TRUE));
2713 sprintf (direct_call_target, callee_cfg->asm_symbol);
2714 patch_info->type = MONO_PATCH_INFO_NONE;
2715 acfg->stats.direct_calls ++;
2718 acfg->stats.all_calls ++;
2721 if (!got_only && !direct_call) {
2722 int plt_offset = get_plt_offset (acfg, patch_info);
2723 if (plt_offset != -1) {
2724 /* This patch has a PLT entry, so we must emit a call to the PLT entry */
2726 sprintf (direct_call_target, "%s%sp_%d", acfg->llvm_label_prefix, acfg->temp_prefix, plt_offset);
2728 /* Nullify the patch */
2729 patch_info->type = MONO_PATCH_INFO_NONE;
2736 arch_emit_direct_call (acfg, direct_call_target, &call_size);
2741 got_slot = get_got_offset (acfg, patch_info);
2743 arch_emit_got_access (acfg, code + i, got_slot, &code_size);
2750 #endif /* MONO_ARCH_AOT_SUPPORTED */
2753 /* Find next patch */
2755 for (pindex = start_index; pindex < patches->len; ++pindex) {
2756 patch_info = g_ptr_array_index (patches, pindex);
2757 if (patch_info->ip.i >= i)
2761 /* Try to emit multiple bytes at once */
2762 if (pindex < patches->len && patch_info->ip.i > i) {
2763 emit_bytes (acfg, code + i, patch_info->ip.i - i);
2764 i = patch_info->ip.i - 1;
2766 emit_bytes (acfg, code + i, 1);
2775 * Modify SYMBOL so it only includes characters permissible in symbols.
2778 sanitize_symbol (char *symbol)
2780 int i, len = strlen (symbol);
2782 for (i = 0; i < len; ++i)
2783 if (!isalnum (symbol [i]) && (symbol [i] != '_'))
2788 get_debug_sym (MonoMethod *method, const char *prefix, GHashTable *cache)
2790 char *name1, *name2, *cached;
2791 int i, j, len, count;
2793 name1 = mono_method_full_name (method, TRUE);
2794 len = strlen (name1);
2795 name2 = malloc (strlen (prefix) + len + 16);
2796 memcpy (name2, prefix, strlen (prefix));
2797 j = strlen (prefix);
2798 for (i = 0; i < len; ++i) {
2799 if (isalnum (name1 [i])) {
2800 name2 [j ++] = name1 [i];
2801 } else if (name1 [i] == ' ' && name1 [i + 1] == '(' && name1 [i + 2] == ')') {
2803 } else if (name1 [i] == ',' && name1 [i + 1] == ' ') {
2806 } else if (name1 [i] == '(' || name1 [i] == ')' || name1 [i] == '>') {
2815 while (g_hash_table_lookup (cache, name2)) {
2816 sprintf (name2 + j, "_%d", count);
2820 cached = g_strdup (name2);
2821 g_hash_table_insert (cache, cached, cached);
2827 emit_method_code (MonoAotCompile *acfg, MonoCompile *cfg)
2832 char *debug_sym = NULL;
2834 int func_alignment = AOT_FUNC_ALIGNMENT;
2835 MonoMethodHeader *header;
2837 method = cfg->orig_method;
2838 code = cfg->native_code;
2839 header = mono_method_get_header (method);
2841 method_index = get_method_index (acfg, method);
2843 /* Emit unbox trampoline */
2844 if (acfg->aot_opts.full_aot && cfg->orig_method->klass->valuetype && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
2845 char call_target [256];
2847 if (!method->wrapper_type && !method->is_inflated) {
2848 g_assert (method->token);
2849 sprintf (symbol, "ut_%d", mono_metadata_token_index (method->token) - 1);
2851 sprintf (symbol, "ut_e_%d", get_method_index (acfg, method));
2854 emit_section_change (acfg, ".text", 0);
2855 emit_global (acfg, symbol, TRUE);
2856 emit_label (acfg, symbol);
2858 sprintf (call_target, "%s", cfg->asm_symbol);
2860 arch_emit_unbox_trampoline (acfg, cfg->orig_method, cfg->generic_sharing_context, call_target);
2863 /* Make the labels local */
2864 sprintf (symbol, "%s", cfg->asm_symbol);
2866 emit_section_change (acfg, ".text", 0);
2867 emit_alignment (acfg, func_alignment);
2868 emit_label (acfg, symbol);
2870 if (acfg->aot_opts.write_symbols) {
2872 * Write a C style symbol for every method, this has two uses:
2873 * - it works on platforms where the dwarf debugging info is not
2875 * - it allows the setting of breakpoints of aot-ed methods.
2877 debug_sym = get_debug_sym (method, "", acfg->method_label_hash);
2879 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
2880 emit_local_symbol (acfg, debug_sym, symbol, TRUE);
2881 emit_label (acfg, debug_sym);
2884 if (cfg->verbose_level > 0)
2885 g_print ("Method %s emitted as %s\n", mono_method_full_name (method, TRUE), symbol);
2887 acfg->stats.code_size += cfg->code_len;
2889 acfg->cfgs [method_index]->got_offset = acfg->got_offset;
2891 emit_and_reloc_code (acfg, method, code, cfg->code_len, cfg->patch_info, FALSE);
2895 if (acfg->aot_opts.write_symbols) {
2896 emit_symbol_size (acfg, debug_sym, ".");
2900 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
2901 emit_label (acfg, symbol);
2907 * Encode PATCH_INFO into its disk representation.
2910 encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info, guint8 *buf, guint8 **endbuf)
2914 switch (patch_info->type) {
2915 case MONO_PATCH_INFO_NONE:
2917 case MONO_PATCH_INFO_IMAGE:
2918 encode_value (get_image_index (acfg, patch_info->data.image), p, &p);
2920 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
2922 case MONO_PATCH_INFO_METHOD_REL:
2923 encode_value ((gint)patch_info->data.offset, p, &p);
2925 case MONO_PATCH_INFO_SWITCH: {
2926 gpointer *table = (gpointer *)patch_info->data.table->table;
2929 encode_value (patch_info->data.table->table_size, p, &p);
2930 for (k = 0; k < patch_info->data.table->table_size; k++)
2931 encode_value ((int)(gssize)table [k], p, &p);
2934 case MONO_PATCH_INFO_METHODCONST:
2935 case MONO_PATCH_INFO_METHOD:
2936 case MONO_PATCH_INFO_METHOD_JUMP:
2937 case MONO_PATCH_INFO_ICALL_ADDR:
2938 case MONO_PATCH_INFO_METHOD_RGCTX:
2939 encode_method_ref (acfg, patch_info->data.method, p, &p);
2941 case MONO_PATCH_INFO_INTERNAL_METHOD:
2942 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
2943 guint32 len = strlen (patch_info->data.name);
2945 encode_value (len, p, &p);
2947 memcpy (p, patch_info->data.name, len);
2952 case MONO_PATCH_INFO_LDSTR: {
2953 guint32 image_index = get_image_index (acfg, patch_info->data.token->image);
2954 guint32 token = patch_info->data.token->token;
2955 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_STRING);
2956 encode_value (image_index, p, &p);
2957 encode_value (patch_info->data.token->token - MONO_TOKEN_STRING, p, &p);
2960 case MONO_PATCH_INFO_RVA:
2961 case MONO_PATCH_INFO_DECLSEC:
2962 case MONO_PATCH_INFO_LDTOKEN:
2963 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2964 encode_value (get_image_index (acfg, patch_info->data.token->image), p, &p);
2965 encode_value (patch_info->data.token->token, p, &p);
2966 encode_value (patch_info->data.token->has_context, p, &p);
2967 if (patch_info->data.token->has_context)
2968 encode_generic_context (acfg, &patch_info->data.token->context, p, &p);
2970 case MONO_PATCH_INFO_EXC_NAME: {
2971 MonoClass *ex_class;
2974 mono_class_from_name (mono_defaults.exception_class->image,
2975 "System", patch_info->data.target);
2976 g_assert (ex_class);
2977 encode_klass_ref (acfg, ex_class, p, &p);
2980 case MONO_PATCH_INFO_R4:
2981 encode_value (*((guint32 *)patch_info->data.target), p, &p);
2983 case MONO_PATCH_INFO_R8:
2984 encode_value (((guint32 *)patch_info->data.target) [MINI_LS_WORD_IDX], p, &p);
2985 encode_value (((guint32 *)patch_info->data.target) [MINI_MS_WORD_IDX], p, &p);
2987 case MONO_PATCH_INFO_VTABLE:
2988 case MONO_PATCH_INFO_CLASS:
2989 case MONO_PATCH_INFO_IID:
2990 case MONO_PATCH_INFO_ADJUSTED_IID:
2991 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
2993 case MONO_PATCH_INFO_CLASS_INIT:
2994 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
2995 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
2997 case MONO_PATCH_INFO_FIELD:
2998 case MONO_PATCH_INFO_SFLDA:
2999 encode_field_info (acfg, patch_info->data.field, p, &p);
3001 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3003 case MONO_PATCH_INFO_RGCTX_FETCH: {
3004 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
3006 encode_method_ref (acfg, entry->method, p, &p);
3007 encode_value (entry->in_mrgctx, p, &p);
3008 encode_value (entry->info_type, p, &p);
3009 encode_value (entry->data->type, p, &p);
3010 encode_patch (acfg, entry->data, p, &p);
3013 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
3014 case MONO_PATCH_INFO_MONITOR_ENTER:
3015 case MONO_PATCH_INFO_MONITOR_EXIT:
3016 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3018 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
3019 encode_method_ref (acfg, patch_info->data.imt_tramp->method, p, &p);
3020 encode_value (patch_info->data.imt_tramp->vt_offset, p, &p);
3023 g_warning ("unable to handle jump info %d", patch_info->type);
3024 g_assert_not_reached ();
3031 encode_patch_list (MonoAotCompile *acfg, GPtrArray *patches, int n_patches, int first_got_offset, guint8 *buf, guint8 **endbuf)
3034 guint32 pindex, offset;
3035 MonoJumpInfo *patch_info;
3037 encode_value (n_patches, p, &p);
3039 for (pindex = 0; pindex < patches->len; ++pindex) {
3040 patch_info = g_ptr_array_index (patches, pindex);
3042 if (patch_info->type == MONO_PATCH_INFO_NONE || patch_info->type == MONO_PATCH_INFO_BB)
3046 offset = get_got_offset (acfg, patch_info);
3047 encode_value (offset, p, &p);
3054 emit_method_info (MonoAotCompile *acfg, MonoCompile *cfg)
3058 int pindex, buf_size, n_patches;
3061 MonoJumpInfo *patch_info;
3062 MonoMethodHeader *header;
3063 guint32 method_index;
3065 guint32 first_got_offset;
3067 method = cfg->orig_method;
3068 code = cfg->native_code;
3069 header = mono_method_get_header (method);
3071 method_index = get_method_index (acfg, method);
3073 /* Sort relocations */
3074 patches = g_ptr_array_new ();
3075 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next)
3076 g_ptr_array_add (patches, patch_info);
3077 g_ptr_array_sort (patches, compare_patches);
3079 first_got_offset = acfg->cfgs [method_index]->got_offset;
3081 /**********************/
3082 /* Encode method info */
3083 /**********************/
3085 buf_size = (patches->len < 1000) ? 40960 : 40960 + (patches->len * 64);
3086 p = buf = g_malloc (buf_size);
3088 if (mono_class_get_cctor (method->klass))
3089 encode_klass_ref (acfg, method->klass, p, &p);
3091 /* Not needed when loading the method */
3092 encode_value (0, p, &p);
3095 if (cfg->opt & MONO_OPT_SHARED) {
3096 encode_value (g_list_length (cfg->ldstr_list), p, &p);
3097 for (l = cfg->ldstr_list; l; l = l->next) {
3098 encode_value ((long)l->data, p, &p);
3102 /* Used only in shared mode */
3103 g_assert (!cfg->ldstr_list);
3106 for (pindex = 0; pindex < patches->len; ++pindex) {
3107 patch_info = g_ptr_array_index (patches, pindex);
3109 if ((patch_info->type == MONO_PATCH_INFO_GOT_OFFSET) ||
3110 (patch_info->type == MONO_PATCH_INFO_NONE)) {
3111 patch_info->type = MONO_PATCH_INFO_NONE;
3116 if ((patch_info->type == MONO_PATCH_INFO_IMAGE) && (patch_info->data.image == acfg->image)) {
3117 /* Stored in a GOT slot initialized at module load time */
3118 patch_info->type = MONO_PATCH_INFO_NONE;
3122 if (is_plt_patch (patch_info)) {
3123 /* Calls are made through the PLT */
3124 patch_info->type = MONO_PATCH_INFO_NONE;
3132 g_assert (cfg->has_got_slots);
3134 encode_patch_list (acfg, patches, n_patches, first_got_offset, p, &p);
3136 acfg->stats.info_size += p - buf;
3138 g_assert (p - buf < buf_size);
3140 cfg->method_info_offset = add_to_blob (acfg, buf, p - buf);
3145 get_unwind_info_offset (MonoAotCompile *acfg, guint8 *encoded, guint32 encoded_len)
3147 guint32 cache_index;
3150 /* Reuse the unwind module to canonize and store unwind info entries */
3151 cache_index = mono_cache_unwind_info (encoded, encoded_len);
3153 /* Use +/- 1 to distinguish 0s from missing entries */
3154 offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1)));
3162 * It would be easier to use assembler symbols, but the caller needs an
3165 offset = acfg->unwind_info_offset;
3166 g_hash_table_insert (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1), GUINT_TO_POINTER (offset + 1));
3167 g_ptr_array_add (acfg->unwind_ops, GUINT_TO_POINTER (cache_index));
3170 encode_value (encoded_len, p, &p);
3172 acfg->unwind_info_offset += encoded_len + (p - buf);
3178 emit_exception_debug_info (MonoAotCompile *acfg, MonoCompile *cfg)
3181 int i, k, buf_size, method_index;
3182 guint32 debug_info_size;
3184 MonoMethodHeader *header;
3185 guint8 *p, *buf, *debug_info;
3186 MonoJitInfo *jinfo = cfg->jit_info;
3188 gboolean use_unwind_ops = FALSE;
3189 MonoSeqPointInfo *seq_points;
3191 method = cfg->orig_method;
3192 code = cfg->native_code;
3193 header = mono_method_get_header (method);
3195 method_index = get_method_index (acfg, method);
3197 if (!acfg->aot_opts.nodebug) {
3198 mono_debug_serialize_debug_info (cfg, &debug_info, &debug_info_size);
3201 debug_info_size = 0;
3204 seq_points = cfg->seq_point_info;
3206 buf_size = header->num_clauses * 256 + debug_info_size + 1024 + (seq_points ? (seq_points->len * 64) : 0);
3207 p = buf = g_malloc (buf_size);
3209 #ifdef MONO_ARCH_HAVE_XP_UNWIND
3210 use_unwind_ops = cfg->unwind_ops != NULL;
3213 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);
3215 encode_value (flags, p, &p);
3217 if (use_unwind_ops) {
3218 guint32 encoded_len;
3222 * This is a duplicate of the data in the .debug_frame section, but that
3223 * section cannot be accessed using the dl interface.
3225 encoded = mono_unwind_ops_encode (cfg->unwind_ops, &encoded_len);
3226 encode_value (get_unwind_info_offset (acfg, encoded, encoded_len), p, &p);
3229 encode_value (jinfo->used_regs, p, &p);
3232 /* Exception table */
3233 if (jinfo->num_clauses)
3234 encode_value (jinfo->num_clauses, p, &p);
3236 for (k = 0; k < jinfo->num_clauses; ++k) {
3237 MonoJitExceptionInfo *ei = &jinfo->clauses [k];
3239 encode_value (ei->flags, p, &p);
3240 encode_value (ei->exvar_offset, p, &p);
3242 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER)
3243 encode_value ((gint)((guint8*)ei->data.filter - code), p, &p);
3245 if (ei->data.catch_class) {
3246 encode_value (1, p, &p);
3247 encode_klass_ref (acfg, ei->data.catch_class, p, &p);
3249 encode_value (0, p, &p);
3253 encode_value ((gint)((guint8*)ei->try_start - code), p, &p);
3254 encode_value ((gint)((guint8*)ei->try_end - code), p, &p);
3255 encode_value ((gint)((guint8*)ei->handler_start - code), p, &p);
3258 if (jinfo->has_generic_jit_info) {
3259 MonoGenericJitInfo *gi = mono_jit_info_get_generic_jit_info (jinfo);
3261 encode_value (gi->has_this ? 1 : 0, p, &p);
3262 encode_value (gi->this_reg, p, &p);
3263 encode_value (gi->this_offset, p, &p);
3266 * Need to encode jinfo->method too, since it is not equal to 'method'
3267 * when using generic sharing.
3269 encode_method_ref (acfg, jinfo->method, p, &p);
3273 int il_offset, native_offset, last_il_offset, last_native_offset, j;
3275 encode_value (seq_points->len, p, &p);
3276 last_il_offset = last_native_offset = 0;
3277 for (i = 0; i < seq_points->len; ++i) {
3278 SeqPoint *sp = &seq_points->seq_points [i];
3279 il_offset = sp->il_offset;
3280 native_offset = sp->native_offset;
3281 encode_value (il_offset - last_il_offset, p, &p);
3282 encode_value (native_offset - last_native_offset, p, &p);
3283 last_il_offset = il_offset;
3284 last_native_offset = native_offset;
3286 encode_value (sp->next_len, p, &p);
3287 for (j = 0; j < sp->next_len; ++j)
3288 encode_value (sp->next [j], p, &p);
3293 g_assert (debug_info_size < buf_size);
3295 encode_value (debug_info_size, p, &p);
3296 if (debug_info_size) {
3297 memcpy (p, debug_info, debug_info_size);
3298 p += debug_info_size;
3299 g_free (debug_info);
3302 acfg->stats.ex_info_size += p - buf;
3304 g_assert (p - buf < buf_size);
3307 cfg->ex_info_offset = add_to_blob (acfg, buf, p - buf);
3312 emit_klass_info (MonoAotCompile *acfg, guint32 token)
3314 MonoClass *klass = mono_class_get (acfg->image, token);
3316 int i, buf_size, res;
3317 gboolean no_special_static, cant_encode;
3318 gpointer iter = NULL;
3320 buf_size = 10240 + (klass->vtable_size * 16);
3321 p = buf = g_malloc (buf_size);
3325 mono_class_init (klass);
3327 mono_class_get_nested_types (klass, &iter);
3328 g_assert (klass->nested_classes_inited);
3330 mono_class_setup_vtable (klass);
3333 * Emit all the information which is required for creating vtables so
3334 * the runtime does not need to create the MonoMethod structures which
3335 * take up a lot of space.
3338 no_special_static = !mono_class_has_special_static_fields (klass);
3340 /* Check whenever we have enough info to encode the vtable */
3341 cant_encode = FALSE;
3342 for (i = 0; i < klass->vtable_size; ++i) {
3343 MonoMethod *cm = klass->vtable [i];
3345 if (cm && mono_method_signature (cm)->is_inflated && !g_hash_table_lookup (acfg->token_info_hash, cm))
3349 if (klass->generic_container || cant_encode) {
3350 encode_value (-1, p, &p);
3352 encode_value (klass->vtable_size, p, &p);
3353 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);
3354 if (klass->has_cctor)
3355 encode_method_ref (acfg, mono_class_get_cctor (klass), p, &p);
3356 if (klass->has_finalize)
3357 encode_method_ref (acfg, mono_class_get_finalizer (klass), p, &p);
3359 encode_value (klass->instance_size, p, &p);
3360 encode_value (mono_class_data_size (klass), p, &p);
3361 encode_value (klass->packing_size, p, &p);
3362 encode_value (klass->min_align, p, &p);
3364 for (i = 0; i < klass->vtable_size; ++i) {
3365 MonoMethod *cm = klass->vtable [i];
3368 encode_method_ref (acfg, cm, p, &p);
3370 encode_value (0, p, &p);
3374 acfg->stats.class_info_size += p - buf;
3376 g_assert (p - buf < buf_size);
3377 res = add_to_blob (acfg, buf, p - buf);
3384 * Calls made from AOTed code are routed through a table of jumps similar to the
3385 * ELF PLT (Program Linkage Table). The differences are the following:
3386 * - the ELF PLT entries make an indirect jump though the GOT so they expect the
3387 * GOT pointer to be in EBX. We want to avoid this, so our table contains direct
3388 * jumps. This means the jumps need to be patched when the address of the callee is
3389 * known. Initially the PLT entries jump to code which transfers control to the
3390 * AOT runtime through the first PLT entry.
3393 emit_plt (MonoAotCompile *acfg)
3399 cache = g_hash_table_new (g_str_hash, g_str_equal);
3402 sprintf (symbol, "plt");
3404 emit_section_change (acfg, ".text", 0);
3405 emit_global (acfg, symbol, TRUE);
3407 /* This section will be made read-write by the AOT loader */
3408 emit_alignment (acfg, mono_pagesize ());
3410 emit_alignment (acfg, 16);
3412 emit_label (acfg, symbol);
3413 emit_label (acfg, acfg->plt_symbol);
3415 for (i = 0; i < acfg->plt_offset; ++i) {
3417 char *debug_sym = NULL;
3420 sprintf (label, "%s%sp_%d", acfg->llvm_label_prefix, acfg->temp_prefix, i);
3424 * If the target is directly callable, alias the plt symbol to point to
3426 * FIXME: Use this to simplify emit_and_reloc_code ().
3427 * FIXME: Avoid the got slot.
3428 * FIXME: Add support to the binary writer.
3430 ji = g_hash_table_lookup (acfg->plt_offset_to_patch, GUINT_TO_POINTER (i));
3431 if (ji && is_direct_callable (acfg, NULL, ji) && !acfg->use_bin_writer) {
3432 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, ji->data.method);
3433 fprintf (acfg->fp, "\n.set %s, %s\n", label, callee_cfg->asm_symbol);
3438 emit_label (acfg, label);
3440 if (acfg->aot_opts.write_symbols) {
3441 MonoJumpInfo *ji = g_hash_table_lookup (acfg->plt_offset_to_patch, GUINT_TO_POINTER (i));
3445 case MONO_PATCH_INFO_METHOD:
3446 debug_sym = get_debug_sym (ji->data.method, "plt_", cache);
3448 case MONO_PATCH_INFO_INTERNAL_METHOD:
3449 debug_sym = g_strdup_printf ("plt__jit_icall_%s", ji->data.name);
3451 case MONO_PATCH_INFO_CLASS_INIT:
3452 debug_sym = g_strdup_printf ("plt__class_init_%s", mono_type_get_name (&ji->data.klass->byval_arg));
3453 sanitize_symbol (debug_sym);
3455 case MONO_PATCH_INFO_RGCTX_FETCH:
3456 debug_sym = g_strdup_printf ("plt__rgctx_fetch_%d", acfg->label_generator ++);
3458 case MONO_PATCH_INFO_ICALL_ADDR: {
3459 char *s = get_debug_sym (ji->data.method, "", cache);
3461 debug_sym = g_strdup_printf ("plt__icall_native_%s", s);
3465 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
3466 debug_sym = g_strdup_printf ("plt__jit_icall_native_%s", ji->data.name);
3468 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
3469 debug_sym = g_strdup_printf ("plt__generic_class_init");
3476 emit_local_symbol (acfg, debug_sym, NULL, TRUE);
3477 emit_label (acfg, debug_sym);
3483 * The first plt entry is used to transfer code to the AOT loader.
3485 arch_emit_plt_entry (acfg, i);
3488 emit_symbol_size (acfg, debug_sym, ".");
3493 emit_symbol_size (acfg, acfg->plt_symbol, ".");
3495 sprintf (symbol, "plt_end");
3496 emit_global (acfg, symbol, TRUE);
3497 emit_label (acfg, symbol);
3499 g_hash_table_destroy (cache);
3502 static G_GNUC_UNUSED void
3503 emit_trampoline (MonoAotCompile *acfg, const char *name, guint8 *code,
3504 guint32 code_size, int got_offset, MonoJumpInfo *ji, GSList *unwind_ops)
3506 char start_symbol [256];
3508 guint32 buf_size, info_offset;
3509 MonoJumpInfo *patch_info;
3515 sprintf (start_symbol, "%s", name);
3517 emit_section_change (acfg, ".text", 0);
3518 emit_global (acfg, start_symbol, TRUE);
3519 emit_alignment (acfg, 16);
3520 emit_label (acfg, start_symbol);
3522 sprintf (symbol, "%snamed_%s", acfg->temp_prefix, name);
3523 emit_label (acfg, symbol);
3526 * The code should access everything through the GOT, so we pass
3529 emit_and_reloc_code (acfg, NULL, code, code_size, ji, TRUE);
3531 emit_symbol_size (acfg, start_symbol, ".");
3535 /* Sort relocations */
3536 patches = g_ptr_array_new ();
3537 for (patch_info = ji; patch_info; patch_info = patch_info->next)
3538 if (patch_info->type != MONO_PATCH_INFO_NONE)
3539 g_ptr_array_add (patches, patch_info);
3540 g_ptr_array_sort (patches, compare_patches);
3542 buf_size = patches->len * 128 + 128;
3543 buf = g_malloc (buf_size);
3546 encode_patch_list (acfg, patches, patches->len, got_offset, p, &p);
3547 g_assert (p - buf < buf_size);
3549 sprintf (symbol, "%s_p", name);
3551 info_offset = add_to_blob (acfg, buf, p - buf);
3553 emit_section_change (acfg, ".text", 0);
3554 emit_global (acfg, symbol, FALSE);
3555 emit_label (acfg, symbol);
3557 emit_int32 (acfg, info_offset);
3559 /* Emit debug info */
3563 sprintf (symbol, "%s", name);
3564 sprintf (symbol2, "%snamed_%s", acfg->temp_prefix, name);
3567 mono_dwarf_writer_emit_trampoline (acfg->dwarf, symbol, symbol2, NULL, NULL, code_size, unwind_ops);
3572 emit_trampolines (MonoAotCompile *acfg)
3575 int i, tramp_got_offset;
3576 MonoAotTrampoline ntype;
3577 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
3585 if (!acfg->aot_opts.full_aot)
3588 g_assert (acfg->image->assembly);
3590 /* Currently, we emit most trampolines into the mscorlib AOT image. */
3591 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
3592 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
3594 * Emit the generic trampolines.
3596 * We could save some code by treating the generic trampolines as a wrapper
3597 * method, but that approach has its own complexities, so we choose the simpler
3600 for (tramp_type = 0; tramp_type < MONO_TRAMPOLINE_NUM; ++tramp_type) {
3601 code = mono_arch_create_trampoline_code_full (tramp_type, &code_size, &ji, &unwind_ops, TRUE);
3603 /* Emit trampoline code */
3605 sprintf (symbol, "generic_trampoline_%d", tramp_type);
3607 emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, unwind_ops);
3610 code = mono_arch_get_nullified_class_init_trampoline (&code_size);
3611 emit_trampoline (acfg, "nullified_class_init_trampoline", code, code_size, acfg->got_offset, NULL, NULL);
3612 #if defined(TARGET_AMD64) && defined(MONO_ARCH_MONITOR_OBJECT_REG)
3613 code = mono_arch_create_monitor_enter_trampoline_full (&code_size, &ji, TRUE);
3614 emit_trampoline (acfg, "monitor_enter_trampoline", code, code_size, acfg->got_offset, ji, NULL);
3615 code = mono_arch_create_monitor_exit_trampoline_full (&code_size, &ji, TRUE);
3616 emit_trampoline (acfg, "monitor_exit_trampoline", code, code_size, acfg->got_offset, ji, NULL);
3619 code = mono_arch_create_generic_class_init_trampoline_full (&code_size, &ji, TRUE);
3620 emit_trampoline (acfg, "generic_class_init_trampoline", code, code_size, acfg->got_offset, ji, NULL);
3622 /* Emit the exception related code pieces */
3623 code = mono_arch_get_restore_context_full (&code_size, &ji, TRUE);
3624 emit_trampoline (acfg, "restore_context", code, code_size, acfg->got_offset, ji, NULL);
3625 code = mono_arch_get_call_filter_full (&code_size, &ji, TRUE);
3626 emit_trampoline (acfg, "call_filter", code, code_size, acfg->got_offset, ji, NULL);
3627 code = mono_arch_get_throw_exception_full (&code_size, &ji, TRUE);
3628 emit_trampoline (acfg, "throw_exception", code, code_size, acfg->got_offset, ji, NULL);
3629 code = mono_arch_get_rethrow_exception_full (&code_size, &ji, TRUE);
3630 emit_trampoline (acfg, "rethrow_exception", code, code_size, acfg->got_offset, ji, NULL);
3631 #ifdef MONO_ARCH_HAVE_THROW_EXCEPTION_BY_NAME
3632 code = mono_arch_get_throw_exception_by_name_full (&code_size, &ji, TRUE);
3633 emit_trampoline (acfg, "throw_exception_by_name", code, code_size, acfg->got_offset, ji, NULL);
3635 code = mono_arch_get_throw_corlib_exception_full (&code_size, &ji, TRUE);
3636 emit_trampoline (acfg, "throw_corlib_exception", code, code_size, acfg->got_offset, ji, NULL);
3638 #if defined(TARGET_AMD64)
3639 code = mono_arch_get_throw_pending_exception_full (&code_size, &ji, TRUE);
3640 emit_trampoline (acfg, "throw_pending_exception", code, code_size, acfg->got_offset, ji, NULL);
3643 for (i = 0; i < 128; ++i) {
3646 offset = MONO_RGCTX_SLOT_MAKE_RGCTX (i);
3647 code = mono_arch_create_rgctx_lazy_fetch_trampoline_full (offset, &code_size, &ji, TRUE);
3648 sprintf (symbol, "rgctx_fetch_trampoline_%u", offset);
3649 emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, NULL);
3651 offset = MONO_RGCTX_SLOT_MAKE_MRGCTX (i);
3652 code = mono_arch_create_rgctx_lazy_fetch_trampoline_full (offset, &code_size, &ji, TRUE);
3653 sprintf (symbol, "rgctx_fetch_trampoline_%u", offset);
3654 emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, NULL);
3660 /* delegate_invoke_impl trampolines */
3661 l = mono_arch_get_delegate_invoke_impls ();
3663 MonoAotTrampInfo *info = l->data;
3665 emit_trampoline (acfg, info->name, info->code, info->code_size, acfg->got_offset, NULL, NULL);
3670 #endif /* #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES */
3672 /* Emit trampolines which are numerous */
3675 * These include the following:
3676 * - specific trampolines
3677 * - static rgctx invoke trampolines
3679 * These trampolines have the same code, they are parameterized by GOT
3681 * They are defined in this file, in the arch_... routines instead of
3682 * in tramp-<ARCH>.c, since it is easier to do it this way.
3686 * When running in aot-only mode, we can't create specific trampolines at
3687 * runtime, so we create a few, and save them in the AOT file.
3688 * Normal trampolines embed their argument as a literal inside the
3689 * trampoline code, we can't do that here, so instead we embed an offset
3690 * which needs to be added to the trampoline address to get the address of
3691 * the GOT slot which contains the argument value.
3692 * The generated trampolines jump to the generic trampolines using another
3693 * GOT slot, which will be setup by the AOT loader to point to the
3694 * generic trampoline code of the given type.
3698 * FIXME: Maybe we should use more specific trampolines (i.e. one class init for
3702 emit_section_change (acfg, ".text", 0);
3704 tramp_got_offset = acfg->got_offset;
3706 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype) {
3708 case MONO_AOT_TRAMP_SPECIFIC:
3709 sprintf (symbol, "specific_trampolines");
3711 case MONO_AOT_TRAMP_STATIC_RGCTX:
3712 sprintf (symbol, "static_rgctx_trampolines");
3714 case MONO_AOT_TRAMP_IMT_THUNK:
3715 sprintf (symbol, "imt_thunks");
3718 g_assert_not_reached ();
3721 emit_global (acfg, symbol, TRUE);
3722 emit_alignment (acfg, 16);
3723 emit_label (acfg, symbol);
3725 acfg->trampoline_got_offset_base [ntype] = tramp_got_offset;
3727 for (i = 0; i < acfg->num_trampolines [ntype]; ++i) {
3731 case MONO_AOT_TRAMP_SPECIFIC:
3732 arch_emit_specific_trampoline (acfg, tramp_got_offset, &tramp_size);
3733 tramp_got_offset += 2;
3735 case MONO_AOT_TRAMP_STATIC_RGCTX:
3736 arch_emit_static_rgctx_trampoline (acfg, tramp_got_offset, &tramp_size);
3737 tramp_got_offset += 2;
3739 case MONO_AOT_TRAMP_IMT_THUNK:
3740 arch_emit_imt_thunk (acfg, tramp_got_offset, &tramp_size);
3741 tramp_got_offset += 1;
3744 g_assert_not_reached ();
3747 if (!acfg->trampoline_size [ntype]) {
3748 g_assert (tramp_size);
3749 acfg->trampoline_size [ntype] = tramp_size;
3754 /* Reserve some entries at the end of the GOT for our use */
3755 acfg->num_trampoline_got_entries = tramp_got_offset - acfg->got_offset;
3758 acfg->got_offset += acfg->num_trampoline_got_entries;
3762 str_begins_with (const char *str1, const char *str2)
3764 int len = strlen (str2);
3765 return strncmp (str1, str2, len) == 0;
3769 mono_aot_parse_options (const char *aot_options, MonoAotOptions *opts)
3771 gchar **args, **ptr;
3773 args = g_strsplit (aot_options ? aot_options : "", ",", -1);
3774 for (ptr = args; ptr && *ptr; ptr ++) {
3775 const char *arg = *ptr;
3777 if (str_begins_with (arg, "outfile=")) {
3778 opts->outfile = g_strdup (arg + strlen ("outfile="));
3779 } else if (str_begins_with (arg, "save-temps")) {
3780 opts->save_temps = TRUE;
3781 } else if (str_begins_with (arg, "keep-temps")) {
3782 opts->save_temps = TRUE;
3783 } else if (str_begins_with (arg, "write-symbols")) {
3784 opts->write_symbols = TRUE;
3785 } else if (str_begins_with (arg, "metadata-only")) {
3786 opts->metadata_only = TRUE;
3787 } else if (str_begins_with (arg, "bind-to-runtime-version")) {
3788 opts->bind_to_runtime_version = TRUE;
3789 } else if (str_begins_with (arg, "full")) {
3790 opts->full_aot = TRUE;
3791 } else if (str_begins_with (arg, "threads=")) {
3792 opts->nthreads = atoi (arg + strlen ("threads="));
3793 } else if (str_begins_with (arg, "static")) {
3794 opts->static_link = TRUE;
3795 opts->no_dlsym = TRUE;
3796 } else if (str_begins_with (arg, "asmonly")) {
3797 opts->asm_only = TRUE;
3798 } else if (str_begins_with (arg, "asmwriter")) {
3799 opts->asm_writer = TRUE;
3800 } else if (str_begins_with (arg, "nodebug")) {
3801 opts->nodebug = TRUE;
3802 } else if (str_begins_with (arg, "ntrampolines=")) {
3803 opts->ntrampolines = atoi (arg + strlen ("ntrampolines="));
3804 } else if (str_begins_with (arg, "nrgctx-trampolines=")) {
3805 opts->nrgctx_trampolines = atoi (arg + strlen ("nrgctx-trampolines="));
3806 } else if (str_begins_with (arg, "autoreg")) {
3807 opts->autoreg = TRUE;
3808 } else if (str_begins_with (arg, "tool-prefix=")) {
3809 opts->tool_prefix = g_strdup (arg + strlen ("tool-prefix="));
3810 } else if (str_begins_with (arg, "soft-debug")) {
3811 opts->soft_debug = TRUE;
3812 } else if (str_begins_with (arg, "print-skipped")) {
3813 opts->print_skipped_methods = TRUE;
3814 } else if (str_begins_with (arg, "stats")) {
3817 fprintf (stderr, "AOT : Unknown argument '%s'.\n", arg);
3826 add_token_info_hash (gpointer key, gpointer value, gpointer user_data)
3828 MonoMethod *method = (MonoMethod*)key;
3829 MonoJumpInfoToken *ji = (MonoJumpInfoToken*)value;
3830 MonoJumpInfoToken *new_ji = g_new0 (MonoJumpInfoToken, 1);
3831 MonoAotCompile *acfg = user_data;
3833 new_ji->image = ji->image;
3834 new_ji->token = ji->token;
3835 g_hash_table_insert (acfg->token_info_hash, method, new_ji);
3839 can_encode_class (MonoAotCompile *acfg, MonoClass *klass)
3841 if (klass->type_token)
3843 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
3846 return can_encode_class (acfg, klass->element_class);
3851 can_encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
3853 switch (patch_info->type) {
3854 case MONO_PATCH_INFO_METHOD:
3855 case MONO_PATCH_INFO_METHODCONST: {
3856 MonoMethod *method = patch_info->data.method;
3858 if (method->wrapper_type) {
3859 switch (method->wrapper_type) {
3860 case MONO_WRAPPER_NONE:
3861 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
3862 case MONO_WRAPPER_XDOMAIN_INVOKE:
3863 case MONO_WRAPPER_STFLD:
3864 case MONO_WRAPPER_LDFLD:
3865 case MONO_WRAPPER_LDFLDA:
3866 case MONO_WRAPPER_LDFLD_REMOTE:
3867 case MONO_WRAPPER_STFLD_REMOTE:
3868 case MONO_WRAPPER_STELEMREF:
3869 case MONO_WRAPPER_ISINST:
3870 case MONO_WRAPPER_PROXY_ISINST:
3871 case MONO_WRAPPER_ALLOC:
3872 case MONO_WRAPPER_REMOTING_INVOKE:
3873 case MONO_WRAPPER_UNKNOWN:
3875 case MONO_WRAPPER_MANAGED_TO_MANAGED:
3876 if (!strcmp (method->name, "ElementAddr"))
3881 //printf ("Skip (wrapper call): %d -> %s\n", patch_info->type, mono_method_full_name (patch_info->data.method, TRUE));
3885 if (!method->token) {
3886 /* The method is part of a constructed type like Int[,].Set (). */
3887 if (!g_hash_table_lookup (acfg->token_info_hash, method)) {
3888 if (method->klass->rank)
3896 case MONO_PATCH_INFO_VTABLE:
3897 case MONO_PATCH_INFO_CLASS_INIT:
3898 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3899 case MONO_PATCH_INFO_CLASS:
3900 case MONO_PATCH_INFO_IID:
3901 case MONO_PATCH_INFO_ADJUSTED_IID:
3902 if (!can_encode_class (acfg, patch_info->data.klass)) {
3903 //printf ("Skip: %s\n", mono_type_full_name (&patch_info->data.klass->byval_arg));
3907 case MONO_PATCH_INFO_RGCTX_FETCH: {
3908 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
3910 if (!can_encode_patch (acfg, entry->data))
3922 add_generic_class (MonoAotCompile *acfg, MonoClass *klass);
3927 * AOT compile a given method.
3928 * This function might be called by multiple threads, so it must be thread-safe.
3931 compile_method (MonoAotCompile *acfg, MonoMethod *method)
3934 MonoJumpInfo *patch_info;
3937 MonoMethod *wrapped;
3939 if (acfg->aot_opts.metadata_only)
3942 mono_acfg_lock (acfg);
3943 index = get_method_index (acfg, method);
3944 mono_acfg_unlock (acfg);
3946 /* fixme: maybe we can also precompile wrapper methods */
3947 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
3948 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
3949 (method->flags & METHOD_ATTRIBUTE_ABSTRACT)) {
3950 //printf ("Skip (impossible): %s\n", mono_method_full_name (method, TRUE));
3954 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
3957 wrapped = mono_marshal_method_from_wrapper (method);
3958 if (wrapped && (wrapped->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && wrapped->is_generic)
3959 // FIXME: The wrapper should be generic too, but it is not
3962 InterlockedIncrement (&acfg->stats.mcount);
3965 if (method->is_generic || method->klass->generic_container) {
3966 InterlockedIncrement (&acfg->stats.genericcount);
3971 //acfg->aot_opts.print_skipped_methods = TRUE;
3974 * Since these methods are the only ones which are compiled with
3975 * AOT support, and they are not used by runtime startup/shutdown code,
3976 * the runtime will not see AOT methods during AOT compilation,so it
3977 * does not need to support them by creating a fake GOT etc.
3979 cfg = mini_method_compile (method, acfg->opts, mono_get_root_domain (), FALSE, TRUE, 0);
3980 if (cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
3981 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3982 InterlockedIncrement (&acfg->stats.genericcount);
3985 if (cfg->exception_type != MONO_EXCEPTION_NONE) {
3986 /* Let the exception happen at runtime */
3990 if (cfg->disable_aot) {
3991 if (acfg->aot_opts.print_skipped_methods)
3992 printf ("Skip (disabled): %s\n", mono_method_full_name (method, TRUE));
3993 InterlockedIncrement (&acfg->stats.ocount);
3994 mono_destroy_compile (cfg);
3998 /* Nullify patches which need no aot processing */
3999 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4000 switch (patch_info->type) {
4001 case MONO_PATCH_INFO_LABEL:
4002 case MONO_PATCH_INFO_BB:
4003 patch_info->type = MONO_PATCH_INFO_NONE;
4010 /* Collect method->token associations from the cfg */
4011 mono_acfg_lock (acfg);
4012 g_hash_table_foreach (cfg->token_info_hash, add_token_info_hash, acfg);
4013 mono_acfg_unlock (acfg);
4016 * Check for absolute addresses.
4019 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4020 switch (patch_info->type) {
4021 case MONO_PATCH_INFO_ABS:
4022 /* unable to handle this */
4031 if (acfg->aot_opts.print_skipped_methods)
4032 printf ("Skip (abs call): %s\n", mono_method_full_name (method, TRUE));
4033 InterlockedIncrement (&acfg->stats.abscount);
4034 mono_destroy_compile (cfg);
4038 /* Lock for the rest of the code */
4039 mono_acfg_lock (acfg);
4042 * Check for methods/klasses we can't encode.
4045 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4046 if (!can_encode_patch (acfg, patch_info))
4051 if (acfg->aot_opts.print_skipped_methods)
4052 printf ("Skip (patches): %s\n", mono_method_full_name (method, TRUE));
4053 acfg->stats.ocount++;
4054 mono_destroy_compile (cfg);
4055 mono_acfg_unlock (acfg);
4059 /* Adds generic instances referenced by this method */
4061 * The depth is used to avoid infinite loops when generic virtual recursion is
4064 depth = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_depth, method));
4066 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4067 switch (patch_info->type) {
4068 case MONO_PATCH_INFO_METHOD: {
4069 MonoMethod *m = patch_info->data.method;
4070 if (m->is_inflated) {
4071 if (!(mono_class_generic_sharing_enabled (m->klass) &&
4072 mono_method_is_generic_sharable_impl (m, FALSE)) &&
4073 !method_has_type_vars (m)) {
4074 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
4075 if (acfg->aot_opts.full_aot)
4076 add_extra_method_with_depth (acfg, mono_marshal_get_native_wrapper (m, TRUE, TRUE), depth + 1);
4078 add_extra_method_with_depth (acfg, m, depth + 1);
4081 add_generic_class (acfg, m->klass);
4083 if (m->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && !strcmp (m->name, "ElementAddr"))
4084 add_extra_method_with_depth (acfg, m, depth + 1);
4087 case MONO_PATCH_INFO_VTABLE: {
4088 MonoClass *klass = patch_info->data.klass;
4090 if (klass->generic_class && !mono_generic_context_is_sharable (&klass->generic_class->context, FALSE))
4091 add_generic_class (acfg, klass);
4100 /* Determine whenever the method has GOT slots */
4101 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4102 switch (patch_info->type) {
4103 case MONO_PATCH_INFO_GOT_OFFSET:
4104 case MONO_PATCH_INFO_NONE:
4106 case MONO_PATCH_INFO_IMAGE:
4107 /* The assembly is stored in GOT slot 0 */
4108 if (patch_info->data.image != acfg->image)
4109 cfg->has_got_slots = TRUE;
4112 if (!is_plt_patch (patch_info))
4113 cfg->has_got_slots = TRUE;
4118 if (!cfg->has_got_slots)
4119 InterlockedIncrement (&acfg->stats.methods_without_got_slots);
4122 * FIXME: Instead of this mess, allocate the patches from the aot mempool.
4124 /* Make a copy of the patch info which is in the mempool */
4126 MonoJumpInfo *patches = NULL, *patches_end = NULL;
4128 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4129 MonoJumpInfo *new_patch_info = mono_patch_info_dup_mp (acfg->mempool, patch_info);
4132 patches = new_patch_info;
4134 patches_end->next = new_patch_info;
4135 patches_end = new_patch_info;
4137 cfg->patch_info = patches;
4139 /* Make a copy of the unwind info */
4141 GSList *l, *unwind_ops;
4145 for (l = cfg->unwind_ops; l; l = l->next) {
4146 op = mono_mempool_alloc (acfg->mempool, sizeof (MonoUnwindOp));
4147 memcpy (op, l->data, sizeof (MonoUnwindOp));
4148 unwind_ops = g_slist_prepend_mempool (acfg->mempool, unwind_ops, op);
4150 cfg->unwind_ops = g_slist_reverse (unwind_ops);
4152 /* Make a copy of the argument/local info */
4154 MonoInst **args, **locals;
4155 MonoMethodSignature *sig;
4156 MonoMethodHeader *header;
4159 sig = mono_method_signature (method);
4160 args = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * (sig->param_count + sig->hasthis));
4161 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4162 args [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
4163 memcpy (args [i], cfg->args [i], sizeof (MonoInst));
4167 header = mono_method_get_header (method);
4168 locals = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * header->num_locals);
4169 for (i = 0; i < header->num_locals; ++i) {
4170 locals [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
4171 memcpy (locals [i], cfg->locals [i], sizeof (MonoInst));
4173 cfg->locals = locals;
4176 /* Free some fields used by cfg to conserve memory */
4177 mono_mempool_destroy (cfg->mempool);
4178 cfg->mempool = NULL;
4179 g_free (cfg->varinfo);
4180 cfg->varinfo = NULL;
4184 mono_regstate_free (cfg->rs);
4188 //printf ("Compile: %s\n", mono_method_full_name (method, TRUE));
4190 while (index >= acfg->cfgs_size) {
4191 MonoCompile **new_cfgs;
4194 new_size = acfg->cfgs_size * 2;
4195 new_cfgs = g_new0 (MonoCompile*, new_size);
4196 memcpy (new_cfgs, acfg->cfgs, sizeof (MonoCompile*) * acfg->cfgs_size);
4197 g_free (acfg->cfgs);
4198 acfg->cfgs = new_cfgs;
4199 acfg->cfgs_size = new_size;
4201 acfg->cfgs [index] = cfg;
4203 g_hash_table_insert (acfg->method_to_cfg, cfg->orig_method, cfg);
4206 if (cfg->orig_method->wrapper_type)
4207 g_ptr_array_add (acfg->extra_methods, cfg->orig_method);
4210 mono_acfg_unlock (acfg);
4212 InterlockedIncrement (&acfg->stats.ccount);
4216 compile_thread_main (gpointer *user_data)
4218 MonoDomain *domain = user_data [0];
4219 MonoAotCompile *acfg = user_data [1];
4220 GPtrArray *methods = user_data [2];
4223 mono_thread_attach (domain);
4225 for (i = 0; i < methods->len; ++i)
4226 compile_method (acfg, g_ptr_array_index (methods, i));
4230 load_profile_files (MonoAotCompile *acfg)
4234 int file_index, res, method_index, i;
4241 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);
4243 if (!g_file_test (tmp, G_FILE_TEST_IS_REGULAR)) {
4248 infile = fopen (tmp, "r");
4251 printf ("Using profile data file '%s'\n", tmp);
4256 res = fscanf (infile, "%32s\n", ver);
4257 if ((res != 1) || strcmp (ver, "#VER:1") != 0) {
4258 printf ("Profile file has wrong version or invalid.\n");
4264 res = fscanf (infile, "%d\n", &token);
4268 method_index = mono_metadata_token_index (token) - 1;
4270 if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (method_index)))
4271 acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (method_index));
4276 /* Add missing methods */
4278 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
4279 if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (i)))
4280 unordered = g_list_prepend (unordered, GUINT_TO_POINTER (i));
4282 unordered = g_list_reverse (unordered);
4283 if (acfg->method_order)
4284 g_list_last (acfg->method_order)->next = unordered;
4286 acfg->method_order = unordered;
4289 /* Used by the LLVM backend */
4291 mono_aot_get_got_offset (MonoJumpInfo *ji)
4293 return get_got_offset (llvm_acfg, ji);
4297 mono_aot_get_method_name (MonoCompile *cfg)
4299 guint32 method_index = get_method_index (llvm_acfg, cfg->orig_method);
4301 return g_strdup_printf ("m_%x", method_index);
4305 mono_aot_get_method_debug_name (MonoCompile *cfg)
4307 return get_debug_sym (cfg->orig_method, "", llvm_acfg->method_label_hash);
4311 mono_aot_get_plt_symbol (MonoJumpInfoType type, gconstpointer data)
4313 MonoJumpInfo *ji = mono_mempool_alloc (llvm_acfg->mempool, sizeof (MonoJumpInfo));
4317 ji->data.target = data;
4319 if (!can_encode_patch (llvm_acfg, ji))
4322 offset = get_plt_offset (llvm_acfg, ji);
4324 return g_strdup_printf ("%sp_%d", llvm_acfg->temp_prefix, offset);
4328 mono_aot_patch_info_dup (MonoJumpInfo* ji)
4332 mono_acfg_lock (llvm_acfg);
4333 res = mono_patch_info_dup_mp (llvm_acfg->mempool, ji);
4334 mono_acfg_unlock (llvm_acfg);
4344 * Emit the LLVM code into an LLVM bytecode file, and compile it using the LLVM
4348 emit_llvm_file (MonoAotCompile *acfg)
4350 char *command, *opts;
4352 MonoJumpInfo *patch_info;
4353 char *llc_target_args;
4356 * When using LLVM, we let llvm emit the got since the LLVM IL needs to refer
4360 /* Compute the final size of the got */
4361 for (i = 0; i < acfg->nmethods; ++i) {
4362 if (acfg->cfgs [i]) {
4363 for (patch_info = acfg->cfgs [i]->patch_info; patch_info; patch_info = patch_info->next) {
4364 if (patch_info->type != MONO_PATCH_INFO_NONE) {
4365 if (!is_plt_patch (patch_info))
4366 get_got_offset (acfg, patch_info);
4368 get_plt_offset (acfg, patch_info);
4374 acfg->final_got_size = acfg->got_offset + acfg->plt_offset;
4376 if (acfg->aot_opts.full_aot) {
4380 * Need to add the got entries used by the trampolines.
4381 * This is only a conservative approximation.
4383 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
4384 /* For the generic + rgctx trampolines */
4385 acfg->final_got_size += 200;
4386 /* For the specific trampolines */
4387 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype)
4388 acfg->final_got_size += acfg->num_trampolines [ntype] * 2;
4393 mono_llvm_emit_aot_module ("temp.bc", acfg->final_got_size);
4396 * FIXME: Experiment with adding optimizations, the -std-compile-opts set takes
4397 * a lot of time, and doesn't seem to save much space.
4398 * The following optimizations cannot be enabled:
4400 * The opt list below was produced by taking the output of:
4401 * llvm-as < /dev/null | opt -O2 -disable-output -debug-pass=Arguments
4402 * then removing tailcallelim + the global opts, and adding a second gvn.
4404 opts = g_strdup ("-instcombine -simplifycfg");
4405 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");
4407 command = g_strdup_printf ("opt -f %s -o temp.opt.bc temp.bc", opts);
4408 printf ("Executing opt: %s\n", command);
4409 if (system (command) != 0) {
4415 llc_target_args = g_strdup (LLC_TARGET_ARGS);
4417 command = g_strdup_printf ("llc %s -f -relocation-model=pic -unwind-tables -o %s temp.opt.bc", llc_target_args, acfg->tmpfname);
4418 g_free (llc_target_args);
4420 printf ("Executing llc: %s\n", command);
4422 if (system (command) != 0) {
4429 emit_code (MonoAotCompile *acfg)
4433 char end_symbol [256];
4436 #if defined(TARGET_POWERPC64)
4437 sprintf (symbol, ".Lgot_addr");
4438 emit_section_change (acfg, ".text", 0);
4439 emit_alignment (acfg, 8);
4440 emit_label (acfg, symbol);
4441 emit_pointer (acfg, acfg->got_symbol);
4445 * This global symbol is used to compute the address of each method using the
4446 * code_offsets array. It is also used to compute the memory ranges occupied by
4447 * AOT code, so it must be equal to the address of the first emitted method.
4449 sprintf (symbol, "methods");
4450 emit_section_change (acfg, ".text", 0);
4451 emit_global (acfg, symbol, TRUE);
4452 emit_alignment (acfg, 8);
4454 for (i = 0; i < acfg->nmethods; ++i) {
4455 if (acfg->cfgs [i] && acfg->cfgs [i]->compile_llvm) {
4456 fprintf (acfg->fp, "\n.set methods, %s\n", acfg->cfgs [i]->asm_symbol);
4460 if (i == acfg->nmethods)
4461 /* No LLVM compiled methods */
4462 emit_label (acfg, symbol);
4464 emit_label (acfg, symbol);
4468 * Emit some padding so the local symbol for the first method doesn't have the
4469 * same address as 'methods'.
4471 emit_zero_bytes (acfg, 16);
4473 for (l = acfg->method_order; l != NULL; l = l->next) {
4474 i = GPOINTER_TO_UINT (l->data);
4476 if (acfg->cfgs [i]) {
4477 if (acfg->cfgs [i]->compile_llvm)
4478 acfg->stats.llvm_count ++;
4480 emit_method_code (acfg, acfg->cfgs [i]);
4484 sprintf (symbol, "methods_end");
4485 emit_section_change (acfg, ".text", 0);
4486 emit_global (acfg, symbol, FALSE);
4487 emit_alignment (acfg, 8);
4488 emit_label (acfg, symbol);
4490 sprintf (symbol, "code_offsets");
4491 emit_section_change (acfg, ".text", 1);
4492 emit_global (acfg, symbol, FALSE);
4493 emit_alignment (acfg, 8);
4494 emit_label (acfg, symbol);
4496 acfg->stats.offsets_size += acfg->nmethods * 4;
4498 sprintf (end_symbol, "%smethods", acfg->llvm_label_prefix);
4499 for (i = 0; i < acfg->nmethods; ++i) {
4500 if (acfg->cfgs [i]) {
4501 emit_symbol_diff (acfg, acfg->cfgs [i]->asm_symbol, end_symbol, 0);
4503 emit_int32 (acfg, 0xffffffff);
4510 emit_info (MonoAotCompile *acfg)
4517 offsets = g_new0 (gint32, acfg->nmethods);
4519 for (l = acfg->method_order; l != NULL; l = l->next) {
4520 i = GPOINTER_TO_UINT (l->data);
4522 if (acfg->cfgs [i]) {
4523 emit_method_info (acfg, acfg->cfgs [i]);
4524 offsets [i] = acfg->cfgs [i]->method_info_offset;
4530 sprintf (symbol, "method_info_offsets");
4531 emit_section_change (acfg, ".text", 1);
4532 emit_global (acfg, symbol, FALSE);
4533 emit_alignment (acfg, 8);
4534 emit_label (acfg, symbol);
4536 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->nmethods, 10, offsets);
4541 #endif /* #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT) */
4543 #define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
4544 #define mix(a,b,c) { \
4545 a -= c; a ^= rot(c, 4); c += b; \
4546 b -= a; b ^= rot(a, 6); a += c; \
4547 c -= b; c ^= rot(b, 8); b += a; \
4548 a -= c; a ^= rot(c,16); c += b; \
4549 b -= a; b ^= rot(a,19); a += c; \
4550 c -= b; c ^= rot(b, 4); b += a; \
4552 #define final(a,b,c) { \
4553 c ^= b; c -= rot(b,14); \
4554 a ^= c; a -= rot(c,11); \
4555 b ^= a; b -= rot(a,25); \
4556 c ^= b; c -= rot(b,16); \
4557 a ^= c; a -= rot(c,4); \
4558 b ^= a; b -= rot(a,14); \
4559 c ^= b; c -= rot(b,24); \
4563 mono_aot_type_hash (MonoType *t1)
4565 guint hash = t1->type;
4567 hash |= t1->byref << 6; /* do not collide with t1->type values */
4569 case MONO_TYPE_VALUETYPE:
4570 case MONO_TYPE_CLASS:
4571 case MONO_TYPE_SZARRAY:
4572 /* check if the distribution is good enough */
4573 return ((hash << 5) - hash) ^ mono_metadata_str_hash (t1->data.klass->name);
4575 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4576 case MONO_TYPE_ARRAY:
4577 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4578 case MONO_TYPE_GENERICINST:
4579 return ((hash << 5) - hash) ^ 0;
4585 * mono_aot_method_hash:
4587 * Return a hash code for methods which only depends on metadata.
4590 mono_aot_method_hash (MonoMethod *method)
4592 MonoMethodSignature *sig;
4596 guint32 *hashes_start, *hashes;
4599 /* Similar to the hash in mono_method_get_imt_slot () */
4601 sig = mono_method_signature (method);
4603 hashes_count = sig->param_count + 5;
4604 hashes_start = malloc (hashes_count * sizeof (guint32));
4605 hashes = hashes_start;
4607 /* Some wrappers are assigned to random classes */
4608 if (!method->wrapper_type || method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4609 klass = method->klass;
4611 klass = mono_defaults.object_class;
4613 if (!method->wrapper_type) {
4614 char *full_name = mono_type_full_name (&klass->byval_arg);
4616 hashes [0] = mono_metadata_str_hash (full_name);
4620 hashes [0] = mono_metadata_str_hash (klass->name);
4621 hashes [1] = mono_metadata_str_hash (klass->name_space);
4623 if (method->wrapper_type == MONO_WRAPPER_STFLD || method->wrapper_type == MONO_WRAPPER_LDFLD || method->wrapper_type == MONO_WRAPPER_LDFLDA)
4624 /* The method name includes a stringified pointer */
4627 hashes [2] = mono_metadata_str_hash (method->name);
4628 hashes [3] = method->wrapper_type;
4629 hashes [4] = mono_aot_type_hash (sig->ret);
4630 for (i = 0; i < sig->param_count; i++) {
4631 hashes [5 + i] = mono_aot_type_hash (sig->params [i]);
4634 /* Setup internal state */
4635 a = b = c = 0xdeadbeef + (((guint32)hashes_count)<<2);
4637 /* Handle most of the hashes */
4638 while (hashes_count > 3) {
4647 /* Handle the last 3 hashes (all the case statements fall through) */
4648 switch (hashes_count) {
4649 case 3 : c += hashes [2];
4650 case 2 : b += hashes [1];
4651 case 1 : a += hashes [0];
4653 case 0: /* nothing left to add */
4657 free (hashes_start);
4666 * mono_aot_wrapper_name:
4668 * Return a string which uniqely identifies the given wrapper method.
4671 mono_aot_wrapper_name (MonoMethod *method)
4673 char *name, *tmpsig, *klass_desc;
4675 tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
4677 switch (method->wrapper_type) {
4678 case MONO_WRAPPER_RUNTIME_INVOKE:
4679 if (!strcmp (method->name, "runtime_invoke_dynamic"))
4680 name = g_strdup_printf ("(wrapper runtime-invoke-dynamic)");
4682 name = g_strdup_printf ("%s (%s)", method->name, tmpsig);
4685 klass_desc = mono_type_full_name (&method->klass->byval_arg);
4686 name = g_strdup_printf ("%s:%s (%s)", klass_desc, method->name, tmpsig);
4687 g_free (klass_desc);
4697 * mono_aot_get_array_helper_from_wrapper;
4699 * Get the helper method in Array called by an array wrapper method.
4702 mono_aot_get_array_helper_from_wrapper (MonoMethod *method)
4706 MonoGenericContext ctx;
4707 MonoType *args [16];
4708 char *mname, *iname, *s, *s2, *helper_name = NULL;
4710 prefix = "System.Collections.Generic";
4711 s = g_strdup_printf ("%s", method->name + strlen (prefix) + 1);
4712 s2 = strstr (s, "`1.");
4718 //printf ("X: %s %s\n", iname, mname);
4720 if (!strcmp (iname, "IList"))
4721 helper_name = g_strdup_printf ("InternalArray__%s", mname);
4723 helper_name = g_strdup_printf ("InternalArray__%s_%s", iname, mname);
4724 m = mono_class_get_method_from_name (mono_defaults.array_class, helper_name, mono_method_signature (method)->param_count);
4726 g_free (helper_name);
4729 if (m->is_generic) {
4730 memset (&ctx, 0, sizeof (ctx));
4731 args [0] = &method->klass->element_class->byval_arg;
4732 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4733 m = mono_class_inflate_generic_method (m, &ctx);
4740 * mono_aot_tramp_info_create:
4742 * Create a MonoAotTrampInfo structure from the arguments.
4745 mono_aot_tramp_info_create (const char *name, guint8 *code, guint32 code_size)
4747 MonoAotTrampInfo *info = g_new0 (MonoAotTrampInfo, 1);
4749 info->name = (char*)name;
4751 info->code_size = code_size;
4756 #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
4758 typedef struct HashEntry {
4759 guint32 key, value, index;
4760 struct HashEntry *next;
4764 * emit_extra_methods:
4766 * Emit methods which are not in the METHOD table, like wrappers.
4769 emit_extra_methods (MonoAotCompile *acfg)
4771 int i, table_size, buf_size;
4774 guint32 *info_offsets;
4777 HashEntry *entry, *new_entry;
4778 int nmethods, max_chain_length;
4781 info_offsets = g_new0 (guint32, acfg->extra_methods->len);
4783 /* Emit method info */
4785 for (i = 0; i < acfg->extra_methods->len; ++i) {
4786 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
4787 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
4794 p = buf = g_malloc (buf_size);
4799 if (method->wrapper_type) {
4801 * We encode some wrappers using their name, since encoding them
4802 * directly would be difficult. This also avoids creating the wrapper
4803 * methods at runtime, since they are not needed anyway.
4805 switch (method->wrapper_type) {
4806 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
4807 case MONO_WRAPPER_SYNCHRONIZED:
4808 /* encode_method_ref () can handle these */
4810 case MONO_WRAPPER_RUNTIME_INVOKE:
4811 if (mono_marshal_method_from_wrapper (method) != method && !strstr (method->name, "virtual"))
4812 /* Direct wrapper, encode normally */
4816 name = mono_aot_wrapper_name (method);
4822 encode_value (1, p, &p);
4823 encode_value (method->wrapper_type, p, &p);
4824 strcpy ((char*)p, name);
4825 p += strlen (name ) + 1;
4828 encode_value (0, p, &p);
4829 encode_method_ref (acfg, method, p, &p);
4832 g_assert ((p - buf) < buf_size);
4834 info_offsets [i] = add_to_blob (acfg, buf, p - buf);
4839 * Construct a chained hash table for mapping indexes in extra_method_info to
4842 table_size = g_spaced_primes_closest ((int)(nmethods * 1.5));
4843 table = g_ptr_array_sized_new (table_size);
4844 for (i = 0; i < table_size; ++i)
4845 g_ptr_array_add (table, NULL);
4846 chain_lengths = g_new0 (int, table_size);
4847 max_chain_length = 0;
4848 for (i = 0; i < acfg->extra_methods->len; ++i) {
4849 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
4850 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
4856 key = info_offsets [i];
4857 value = get_method_index (acfg, method);
4859 hash = mono_aot_method_hash (method) % table_size;
4861 chain_lengths [hash] ++;
4862 max_chain_length = MAX (max_chain_length, chain_lengths [hash]);
4864 new_entry = mono_mempool_alloc0 (acfg->mempool, sizeof (HashEntry));
4865 new_entry->key = key;
4866 new_entry->value = value;
4868 entry = g_ptr_array_index (table, hash);
4869 if (entry == NULL) {
4870 new_entry->index = hash;
4871 g_ptr_array_index (table, hash) = new_entry;
4874 entry = entry->next;
4876 entry->next = new_entry;
4877 new_entry->index = table->len;
4878 g_ptr_array_add (table, new_entry);
4882 //printf ("MAX: %d\n", max_chain_length);
4884 /* Emit the table */
4885 sprintf (symbol, "extra_method_table");
4886 emit_section_change (acfg, ".text", 0);
4887 emit_global (acfg, symbol, FALSE);
4888 emit_alignment (acfg, 8);
4889 emit_label (acfg, symbol);
4891 emit_int32 (acfg, table_size);
4892 for (i = 0; i < table->len; ++i) {
4893 HashEntry *entry = g_ptr_array_index (table, i);
4895 if (entry == NULL) {
4896 emit_int32 (acfg, 0);
4897 emit_int32 (acfg, 0);
4898 emit_int32 (acfg, 0);
4900 //g_assert (entry->key > 0);
4901 emit_int32 (acfg, entry->key);
4902 emit_int32 (acfg, entry->value);
4904 emit_int32 (acfg, entry->next->index);
4906 emit_int32 (acfg, 0);
4911 * Emit a table reverse mapping method indexes to their index in extra_method_info.
4912 * This is used by mono_aot_find_jit_info ().
4914 sprintf (symbol, "extra_method_info_offsets");
4915 emit_section_change (acfg, ".text", 0);
4916 emit_global (acfg, symbol, FALSE);
4917 emit_alignment (acfg, 8);
4918 emit_label (acfg, symbol);
4920 emit_int32 (acfg, acfg->extra_methods->len);
4921 for (i = 0; i < acfg->extra_methods->len; ++i) {
4922 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
4924 emit_int32 (acfg, get_method_index (acfg, method));
4925 emit_int32 (acfg, info_offsets [i]);
4930 emit_exception_info (MonoAotCompile *acfg)
4936 offsets = g_new0 (gint32, acfg->nmethods);
4937 for (i = 0; i < acfg->nmethods; ++i) {
4938 if (acfg->cfgs [i]) {
4939 emit_exception_debug_info (acfg, acfg->cfgs [i]);
4940 offsets [i] = acfg->cfgs [i]->ex_info_offset;
4946 sprintf (symbol, "ex_info_offsets");
4947 emit_section_change (acfg, ".text", 1);
4948 emit_global (acfg, symbol, FALSE);
4949 emit_alignment (acfg, 8);
4950 emit_label (acfg, symbol);
4952 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->nmethods, 10, offsets);
4957 emit_unwind_info (MonoAotCompile *acfg)
4963 * The unwind info contains a lot of duplicates so we emit each unique
4964 * entry once, and only store the offset from the start of the table in the
4968 sprintf (symbol, "unwind_info");
4969 emit_section_change (acfg, ".text", 1);
4970 emit_alignment (acfg, 8);
4971 emit_label (acfg, symbol);
4972 emit_global (acfg, symbol, FALSE);
4974 for (i = 0; i < acfg->unwind_ops->len; ++i) {
4975 guint32 index = GPOINTER_TO_UINT (g_ptr_array_index (acfg->unwind_ops, i));
4976 guint8 *unwind_info;
4977 guint32 unwind_info_len;
4981 unwind_info = mono_get_cached_unwind_info (index, &unwind_info_len);
4984 encode_value (unwind_info_len, p, &p);
4985 emit_bytes (acfg, buf, p - buf);
4986 emit_bytes (acfg, unwind_info, unwind_info_len);
4988 acfg->stats.unwind_info_size += (p - buf) + unwind_info_len;
4993 emit_class_info (MonoAotCompile *acfg)
4999 offsets = g_new0 (gint32, acfg->image->tables [MONO_TABLE_TYPEDEF].rows);
5000 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i)
5001 offsets [i] = emit_klass_info (acfg, MONO_TOKEN_TYPE_DEF | (i + 1));
5003 sprintf (symbol, "class_info_offsets");
5004 emit_section_change (acfg, ".text", 1);
5005 emit_global (acfg, symbol, FALSE);
5006 emit_alignment (acfg, 8);
5007 emit_label (acfg, symbol);
5009 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->image->tables [MONO_TABLE_TYPEDEF].rows, 10, offsets);
5013 typedef struct ClassNameTableEntry {
5014 guint32 token, index;
5015 struct ClassNameTableEntry *next;
5016 } ClassNameTableEntry;
5019 emit_class_name_table (MonoAotCompile *acfg)
5022 guint32 token, hash;
5027 ClassNameTableEntry *entry, *new_entry;
5030 * Construct a chained hash table for mapping class names to typedef tokens.
5032 table_size = g_spaced_primes_closest ((int)(acfg->image->tables [MONO_TABLE_TYPEDEF].rows * 1.5));
5033 table = g_ptr_array_sized_new (table_size);
5034 for (i = 0; i < table_size; ++i)
5035 g_ptr_array_add (table, NULL);
5036 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
5037 token = MONO_TOKEN_TYPE_DEF | (i + 1);
5038 klass = mono_class_get (acfg->image, token);
5039 full_name = mono_type_get_name_full (mono_class_get_type (klass), MONO_TYPE_NAME_FORMAT_FULL_NAME);
5040 hash = mono_metadata_str_hash (full_name) % table_size;
5043 /* FIXME: Allocate from the mempool */
5044 new_entry = g_new0 (ClassNameTableEntry, 1);
5045 new_entry->token = token;
5047 entry = g_ptr_array_index (table, hash);
5048 if (entry == NULL) {
5049 new_entry->index = hash;
5050 g_ptr_array_index (table, hash) = new_entry;
5053 entry = entry->next;
5055 entry->next = new_entry;
5056 new_entry->index = table->len;
5057 g_ptr_array_add (table, new_entry);
5061 /* Emit the table */
5062 sprintf (symbol, "class_name_table");
5063 emit_section_change (acfg, ".text", 0);
5064 emit_global (acfg, symbol, FALSE);
5065 emit_alignment (acfg, 8);
5066 emit_label (acfg, symbol);
5068 /* FIXME: Optimize memory usage */
5069 g_assert (table_size < 65000);
5070 emit_int16 (acfg, table_size);
5071 g_assert (table->len < 65000);
5072 for (i = 0; i < table->len; ++i) {
5073 ClassNameTableEntry *entry = g_ptr_array_index (table, i);
5075 if (entry == NULL) {
5076 emit_int16 (acfg, 0);
5077 emit_int16 (acfg, 0);
5079 emit_int16 (acfg, mono_metadata_token_index (entry->token));
5081 emit_int16 (acfg, entry->next->index);
5083 emit_int16 (acfg, 0);
5089 emit_image_table (MonoAotCompile *acfg)
5095 * The image table is small but referenced in a lot of places.
5096 * So we emit it at once, and reference its elements by an index.
5099 sprintf (symbol, "mono_image_table");
5100 emit_section_change (acfg, ".text", 1);
5101 emit_global (acfg, symbol, FALSE);
5102 emit_alignment (acfg, 8);
5103 emit_label (acfg, symbol);
5105 emit_int32 (acfg, acfg->image_table->len);
5106 for (i = 0; i < acfg->image_table->len; i++) {
5107 MonoImage *image = (MonoImage*)g_ptr_array_index (acfg->image_table, i);
5108 MonoAssemblyName *aname = &image->assembly->aname;
5110 /* FIXME: Support multi-module assemblies */
5111 g_assert (image->assembly->image == image);
5113 emit_string (acfg, image->assembly_name);
5114 emit_string (acfg, image->guid);
5115 emit_string (acfg, aname->culture ? aname->culture : "");
5116 emit_string (acfg, (const char*)aname->public_key_token);
5118 emit_alignment (acfg, 8);
5119 emit_int32 (acfg, aname->flags);
5120 emit_int32 (acfg, aname->major);
5121 emit_int32 (acfg, aname->minor);
5122 emit_int32 (acfg, aname->build);
5123 emit_int32 (acfg, aname->revision);
5128 emit_got_info (MonoAotCompile *acfg)
5131 int i, first_plt_got_patch, buf_size;
5133 guint32 *got_info_offsets;
5135 /* Add the patches needed by the PLT to the GOT */
5136 acfg->plt_got_offset_base = acfg->got_offset;
5137 first_plt_got_patch = acfg->got_patches->len;
5138 for (i = 1; i < acfg->plt_offset; ++i) {
5139 MonoJumpInfo *patch_info = g_hash_table_lookup (acfg->plt_offset_to_patch, GUINT_TO_POINTER (i));
5141 g_ptr_array_add (acfg->got_patches, patch_info);
5144 acfg->got_offset += acfg->plt_offset;
5148 * - optimize offsets table.
5149 * - reduce number of exported symbols.
5150 * - emit info for a klass only once.
5151 * - determine when a method uses a GOT slot which is guaranteed to be already
5153 * - clean up and document the code.
5154 * - use String.Empty in class libs.
5157 /* Encode info required to decode shared GOT entries */
5158 buf_size = acfg->got_patches->len * 64;
5159 p = buf = mono_mempool_alloc (acfg->mempool, buf_size);
5160 got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->got_patches->len * sizeof (guint32));
5161 acfg->plt_got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->plt_offset * sizeof (guint32));
5163 if (acfg->plt_offset)
5164 acfg->plt_got_info_offsets [0] = 0;
5165 for (i = 0; i < acfg->got_patches->len; ++i) {
5166 MonoJumpInfo *ji = g_ptr_array_index (acfg->got_patches, i);
5170 encode_value (ji->type, p, &p);
5171 encode_patch (acfg, ji, p, &p);
5173 g_assert (p - buf <= buf_size);
5174 got_info_offsets [i] = add_to_blob (acfg, buf, p - buf);
5176 if (i >= first_plt_got_patch)
5177 acfg->plt_got_info_offsets [i - first_plt_got_patch + 1] = got_info_offsets [i];
5178 acfg->stats.got_info_size += p - buf;
5181 /* Emit got_info_offsets table */
5182 sprintf (symbol, "got_info_offsets");
5183 emit_section_change (acfg, ".text", 1);
5184 emit_global (acfg, symbol, FALSE);
5185 emit_alignment (acfg, 8);
5186 emit_label (acfg, symbol);
5188 /* No need to emit offsets for the got plt entries, the plt embeds them directly */
5189 acfg->stats.offsets_size += emit_offset_table (acfg, first_plt_got_patch, 10, (gint32*)got_info_offsets);
5193 emit_got (MonoAotCompile *acfg)
5198 /* Don't make GOT global so accesses to it don't need relocations */
5199 sprintf (symbol, "%s", acfg->got_symbol);
5200 emit_section_change (acfg, ".bss", 0);
5201 emit_alignment (acfg, 8);
5202 emit_local_symbol (acfg, symbol, "got_end", FALSE);
5203 emit_label (acfg, symbol);
5204 if (acfg->got_offset > 0)
5205 emit_zero_bytes (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
5207 sprintf (symbol, "got_end");
5208 emit_label (acfg, symbol);
5211 sprintf (symbol, "mono_aot_got_addr");
5212 emit_section_change (acfg, ".data", 0);
5213 emit_global (acfg, symbol, FALSE);
5214 emit_alignment (acfg, 8);
5215 emit_label (acfg, symbol);
5216 emit_pointer (acfg, acfg->got_symbol);
5219 typedef struct GlobalsTableEntry {
5220 guint32 value, index;
5221 struct GlobalsTableEntry *next;
5222 } GlobalsTableEntry;
5225 emit_globals_table (MonoAotCompile *acfg)
5231 GlobalsTableEntry *entry, *new_entry;
5234 * Construct a chained hash table for mapping global names to their index in
5235 * the globals table.
5237 table_size = g_spaced_primes_closest ((int)(acfg->globals->len * 1.5));
5238 table = g_ptr_array_sized_new (table_size);
5239 for (i = 0; i < table_size; ++i)
5240 g_ptr_array_add (table, NULL);
5241 for (i = 0; i < acfg->globals->len; ++i) {
5242 char *name = g_ptr_array_index (acfg->globals, i);
5244 hash = mono_metadata_str_hash (name) % table_size;
5246 /* FIXME: Allocate from the mempool */
5247 new_entry = g_new0 (GlobalsTableEntry, 1);
5248 new_entry->value = i;
5250 entry = g_ptr_array_index (table, hash);
5251 if (entry == NULL) {
5252 new_entry->index = hash;
5253 g_ptr_array_index (table, hash) = new_entry;
5256 entry = entry->next;
5258 entry->next = new_entry;
5259 new_entry->index = table->len;
5260 g_ptr_array_add (table, new_entry);
5264 /* Emit the table */
5265 sprintf (symbol, ".Lglobals_hash");
5266 emit_section_change (acfg, ".text", 0);
5267 emit_alignment (acfg, 8);
5268 emit_label (acfg, symbol);
5270 /* FIXME: Optimize memory usage */
5271 g_assert (table_size < 65000);
5272 emit_int16 (acfg, table_size);
5273 for (i = 0; i < table->len; ++i) {
5274 GlobalsTableEntry *entry = g_ptr_array_index (table, i);
5276 if (entry == NULL) {
5277 emit_int16 (acfg, 0);
5278 emit_int16 (acfg, 0);
5280 emit_int16 (acfg, entry->value + 1);
5282 emit_int16 (acfg, entry->next->index);
5284 emit_int16 (acfg, 0);
5288 /* Emit the names */
5289 for (i = 0; i < acfg->globals->len; ++i) {
5290 char *name = g_ptr_array_index (acfg->globals, i);
5292 sprintf (symbol, "name_%d", i);
5293 emit_section_change (acfg, ".text", 1);
5294 emit_label (acfg, symbol);
5295 emit_string (acfg, name);
5298 /* Emit the globals table */
5299 sprintf (symbol, ".Lglobals");
5300 emit_section_change (acfg, ".data", 0);
5301 /* This is not a global, since it is accessed by the init function */
5302 emit_alignment (acfg, 8);
5303 emit_label (acfg, symbol);
5305 sprintf (symbol, "%sglobals_hash", acfg->temp_prefix);
5306 emit_pointer (acfg, symbol);
5308 for (i = 0; i < acfg->globals->len; ++i) {
5309 char *name = g_ptr_array_index (acfg->globals, i);
5311 sprintf (symbol, "name_%d", i);
5312 emit_pointer (acfg, symbol);
5314 sprintf (symbol, "%s", name);
5315 emit_pointer (acfg, symbol);
5317 /* Null terminate the table */
5318 emit_int32 (acfg, 0);
5319 emit_int32 (acfg, 0);
5323 emit_globals (MonoAotCompile *acfg)
5327 emit_string_symbol (acfg, "mono_assembly_guid" , acfg->image->guid);
5329 emit_string_symbol (acfg, "mono_aot_version", MONO_AOT_FILE_VERSION);
5331 if (acfg->aot_opts.bind_to_runtime_version) {
5332 build_info = mono_get_runtime_build_info ();
5333 emit_string_symbol (acfg, "mono_runtime_version", build_info);
5334 g_free (build_info);
5336 emit_string_symbol (acfg, "mono_runtime_version", "");
5340 * When static linking, we emit a global which will point to the symbol table.
5342 if (acfg->aot_opts.static_link) {
5346 /* Emit a string holding the assembly name */
5347 emit_string_symbol (acfg, "mono_aot_assembly_name", acfg->image->assembly->aname.name);
5349 emit_globals_table (acfg);
5352 * Emit a global symbol which can be passed by an embedding app to
5353 * mono_aot_register_module ().
5355 #if defined(__MACH__)
5356 sprintf (symbol, "_mono_aot_module_%s_info", acfg->image->assembly->aname.name);
5358 sprintf (symbol, "mono_aot_module_%s_info", acfg->image->assembly->aname.name);
5361 /* Get rid of characters which cannot occur in symbols */
5363 for (p = symbol; *p; ++p) {
5364 if (!(isalnum (*p) || *p == '_'))
5367 acfg->static_linking_symbol = g_strdup (symbol);
5368 emit_global_inner (acfg, symbol, FALSE);
5369 emit_alignment (acfg, 8);
5370 emit_label (acfg, symbol);
5371 sprintf (symbol, "%sglobals", acfg->temp_prefix);
5372 emit_pointer (acfg, symbol);
5377 emit_autoreg (MonoAotCompile *acfg)
5382 * Emit a function into the .ctor section which will be called by the ELF
5383 * loader to register this module with the runtime.
5385 if (! (!acfg->use_bin_writer && acfg->aot_opts.static_link && acfg->aot_opts.autoreg))
5388 symbol = g_strdup_printf ("_%s_autoreg", acfg->static_linking_symbol);
5390 arch_emit_autoreg (acfg, symbol);
5396 emit_mem_end (MonoAotCompile *acfg)
5400 sprintf (symbol, "mem_end");
5401 emit_section_change (acfg, ".text", 1);
5402 emit_global (acfg, symbol, FALSE);
5403 emit_alignment (acfg, 8);
5404 emit_label (acfg, symbol);
5408 * Emit a structure containing all the information not stored elsewhere.
5411 emit_file_info (MonoAotCompile *acfg)
5416 sprintf (symbol, "mono_aot_file_info");
5417 emit_section_change (acfg, ".data", 0);
5418 emit_alignment (acfg, 8);
5419 emit_label (acfg, symbol);
5420 emit_global (acfg, symbol, FALSE);
5422 /* The data emitted here must match MonoAotFileInfo in aot-runtime.c. */
5423 emit_int32 (acfg, acfg->plt_got_offset_base);
5424 emit_int32 (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
5425 emit_int32 (acfg, acfg->plt_offset);
5426 emit_int32 (acfg, acfg->nmethods);
5427 emit_int32 (acfg, acfg->flags);
5428 emit_int32 (acfg, acfg->opts);
5430 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
5431 emit_int32 (acfg, acfg->num_trampolines [i]);
5432 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
5433 emit_int32 (acfg, acfg->trampoline_got_offset_base [i]);
5434 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
5435 emit_int32 (acfg, acfg->trampoline_size [i]);
5439 emit_blob (MonoAotCompile *acfg)
5443 sprintf (symbol, "blob");
5444 emit_section_change (acfg, ".text", 1);
5445 emit_global (acfg, symbol, FALSE);
5446 emit_alignment (acfg, 8);
5447 emit_label (acfg, symbol);
5449 emit_bytes (acfg, (guint8*)acfg->blob.data, acfg->blob.index);
5453 emit_dwarf_info (MonoAotCompile *acfg)
5455 #ifdef EMIT_DWARF_INFO
5457 char symbol [128], symbol2 [128];
5459 /* DIEs for methods */
5460 for (i = 0; i < acfg->nmethods; ++i) {
5461 MonoCompile *cfg = acfg->cfgs [i];
5466 // FIXME: LLVM doesn't define .Lme_...
5467 if (cfg->compile_llvm)
5470 sprintf (symbol, "%s", cfg->asm_symbol);
5471 sprintf (symbol2, "%sme_%x", acfg->temp_prefix, i);
5473 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 ()));
5479 collect_methods (MonoAotCompile *acfg)
5482 MonoImage *image = acfg->image;
5484 /* Collect methods */
5485 for (i = 0; i < image->tables [MONO_TABLE_METHOD].rows; ++i) {
5487 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
5489 method = mono_get_method (acfg->image, token, NULL);
5492 printf ("Failed to load method 0x%x from '%s'.\n", token, image->name);
5496 /* Load all methods eagerly to skip the slower lazy loading code */
5497 mono_class_setup_methods (method->klass);
5499 if (acfg->aot_opts.full_aot && method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
5500 /* Compile the wrapper instead */
5501 /* We do this here instead of add_wrappers () because it is easy to do it here */
5502 MonoMethod *wrapper = mono_marshal_get_native_wrapper (method, check_for_pending_exc, TRUE);
5506 /* FIXME: Some mscorlib methods don't have debug info */
5508 if (acfg->aot_opts.soft_debug && !method->wrapper_type) {
5509 if (!((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
5510 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
5511 (method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
5512 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))) {
5513 if (!mono_debug_lookup_method (method)) {
5514 fprintf (stderr, "Method %s has no debug info, probably the .mdb file for the assembly is missing.\n", mono_method_full_name (method, TRUE));
5521 /* Since we add the normal methods first, their index will be equal to their zero based token index */
5522 add_method_with_index (acfg, method, i, FALSE);
5523 acfg->method_index ++;
5526 add_generic_instances (acfg);
5528 if (acfg->aot_opts.full_aot)
5529 add_wrappers (acfg);
5533 compile_methods (MonoAotCompile *acfg)
5537 if (acfg->aot_opts.nthreads > 0) {
5542 gpointer *user_data;
5543 MonoMethod **methods;
5545 methods_len = acfg->methods->len;
5547 len = acfg->methods->len / acfg->aot_opts.nthreads;
5550 * Partition the list of methods into fragments, and hand it to threads to
5553 threads = g_ptr_array_new ();
5554 /* Make a copy since acfg->methods is modified by compile_method () */
5555 methods = g_new0 (MonoMethod*, methods_len);
5556 //memcpy (methods, g_ptr_array_index (acfg->methods, 0), sizeof (MonoMethod*) * methods_len);
5557 for (i = 0; i < methods_len; ++i)
5558 methods [i] = g_ptr_array_index (acfg->methods, i);
5560 while (i < methods_len) {
5561 frag = g_ptr_array_new ();
5562 for (j = 0; j < len; ++j) {
5563 if (i < methods_len) {
5564 g_ptr_array_add (frag, methods [i]);
5569 user_data = g_new0 (gpointer, 3);
5570 user_data [0] = mono_domain_get ();
5571 user_data [1] = acfg;
5572 user_data [2] = frag;
5574 handle = mono_create_thread (NULL, 0, (gpointer)compile_thread_main, user_data, 0, NULL);
5575 g_ptr_array_add (threads, handle);
5579 for (i = 0; i < threads->len; ++i) {
5580 WaitForSingleObjectEx (g_ptr_array_index (threads, i), INFINITE, FALSE);
5586 /* Compile methods added by compile_method () or all methods if nthreads == 0 */
5587 for (i = methods_len; i < acfg->methods->len; ++i) {
5588 /* This can new methods to acfg->methods */
5589 compile_method (acfg, g_ptr_array_index (acfg->methods, i));
5594 compile_asm (MonoAotCompile *acfg)
5596 char *command, *objfile;
5597 char *outfile_name, *tmp_outfile_name;
5598 const char *tool_prefix = acfg->aot_opts.tool_prefix ? acfg->aot_opts.tool_prefix : "";
5600 #if defined(TARGET_AMD64)
5601 #define AS_OPTIONS "--64"
5602 #elif defined(TARGET_POWERPC64)
5603 #define AS_OPTIONS "-a64 -mppc64"
5604 #define LD_OPTIONS "-m elf64ppc"
5605 #elif defined(sparc) && SIZEOF_VOID_P == 8
5606 #define AS_OPTIONS "-xarch=v9"
5608 #define AS_OPTIONS ""
5612 #define LD_OPTIONS ""
5616 #define EH_LD_OPTIONS "--eh-frame-hdr"
5618 #define EH_LD_OPTIONS ""
5621 if (acfg->aot_opts.asm_only) {
5622 printf ("Output file: '%s'.\n", acfg->tmpfname);
5623 if (acfg->aot_opts.static_link)
5624 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
5628 if (acfg->aot_opts.static_link) {
5629 if (acfg->aot_opts.outfile)
5630 objfile = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5632 objfile = g_strdup_printf ("%s.o", acfg->image->name);
5634 objfile = g_strdup_printf ("%s.o", acfg->tmpfname);
5636 command = g_strdup_printf ("%sas %s %s -o %s", tool_prefix, AS_OPTIONS, acfg->tmpfname, objfile);
5637 printf ("Executing the native assembler: %s\n", command);
5638 if (system (command) != 0) {
5646 if (acfg->aot_opts.static_link) {
5647 printf ("Output file: '%s'.\n", objfile);
5648 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
5653 if (acfg->aot_opts.outfile)
5654 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5656 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
5658 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
5661 command = g_strdup_printf ("ld -shared -G -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
5662 #elif defined(__ppc__) && defined(__MACH__)
5663 command = g_strdup_printf ("gcc -dynamiclib -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
5664 #elif defined(HOST_WIN32)
5665 command = g_strdup_printf ("gcc -shared --dll -mno-cygwin -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
5667 command = g_strdup_printf ("%sld %s %s -shared -o %s %s.o", tool_prefix, EH_LD_OPTIONS, LD_OPTIONS, tmp_outfile_name, acfg->tmpfname);
5669 printf ("Executing the native linker: %s\n", command);
5670 if (system (command) != 0) {
5671 g_free (tmp_outfile_name);
5672 g_free (outfile_name);
5680 /*com = g_strdup_printf ("strip --strip-unneeded %s%s", acfg->image->name, SHARED_EXT);
5681 printf ("Stripping the binary: %s\n", com);
5685 #if defined(TARGET_ARM) && !defined(__MACH__)
5687 * gas generates 'mapping symbols' each time code and data is mixed, which
5688 * happens a lot in emit_and_reloc_code (), so we need to get rid of them.
5690 command = g_strdup_printf ("%sstrip --strip-symbol=\\$a --strip-symbol=\\$d %s", tool_prefix, tmp_outfile_name);
5691 printf ("Stripping the binary: %s\n", command);
5692 if (system (command) != 0) {
5693 g_free (tmp_outfile_name);
5694 g_free (outfile_name);
5701 rename (tmp_outfile_name, outfile_name);
5703 g_free (tmp_outfile_name);
5704 g_free (outfile_name);
5707 if (acfg->aot_opts.save_temps)
5708 printf ("Retained input file.\n");
5710 unlink (acfg->tmpfname);
5715 static MonoAotCompile*
5716 acfg_create (MonoAssembly *ass, guint32 opts)
5718 MonoImage *image = ass->image;
5719 MonoAotCompile *acfg;
5722 acfg = g_new0 (MonoAotCompile, 1);
5723 acfg->methods = g_ptr_array_new ();
5724 acfg->method_indexes = g_hash_table_new (NULL, NULL);
5725 acfg->method_depth = g_hash_table_new (NULL, NULL);
5726 acfg->plt_offset_to_patch = g_hash_table_new (NULL, NULL);
5727 acfg->patch_to_plt_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
5728 acfg->patch_to_got_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
5729 acfg->patch_to_got_offset_by_type = g_new0 (GHashTable*, MONO_PATCH_INFO_NUM);
5730 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i)
5731 acfg->patch_to_got_offset_by_type [i] = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
5732 acfg->got_patches = g_ptr_array_new ();
5733 acfg->method_to_cfg = g_hash_table_new (NULL, NULL);
5734 acfg->token_info_hash = g_hash_table_new_full (NULL, NULL, NULL, g_free);
5735 acfg->image_hash = g_hash_table_new (NULL, NULL);
5736 acfg->image_table = g_ptr_array_new ();
5737 acfg->globals = g_ptr_array_new ();
5738 acfg->image = image;
5740 acfg->mempool = mono_mempool_new ();
5741 acfg->extra_methods = g_ptr_array_new ();
5742 acfg->unwind_info_offsets = g_hash_table_new (NULL, NULL);
5743 acfg->unwind_ops = g_ptr_array_new ();
5744 acfg->method_label_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
5745 InitializeCriticalSection (&acfg->mutex);
5751 acfg_free (MonoAotCompile *acfg)
5755 img_writer_destroy (acfg->w);
5756 for (i = 0; i < acfg->nmethods; ++i)
5758 g_free (acfg->cfgs [i]);
5759 g_free (acfg->cfgs);
5760 g_free (acfg->static_linking_symbol);
5761 g_free (acfg->got_symbol);
5762 g_free (acfg->plt_symbol);
5763 g_ptr_array_free (acfg->methods, TRUE);
5764 g_ptr_array_free (acfg->got_patches, TRUE);
5765 g_ptr_array_free (acfg->image_table, TRUE);
5766 g_ptr_array_free (acfg->globals, TRUE);
5767 g_ptr_array_free (acfg->unwind_ops, TRUE);
5768 g_hash_table_destroy (acfg->method_indexes);
5769 g_hash_table_destroy (acfg->method_depth);
5770 g_hash_table_destroy (acfg->plt_offset_to_patch);
5771 g_hash_table_destroy (acfg->patch_to_plt_offset);
5772 g_hash_table_destroy (acfg->patch_to_got_offset);
5773 g_hash_table_destroy (acfg->method_to_cfg);
5774 g_hash_table_destroy (acfg->token_info_hash);
5775 g_hash_table_destroy (acfg->image_hash);
5776 g_hash_table_destroy (acfg->unwind_info_offsets);
5777 g_hash_table_destroy (acfg->method_label_hash);
5778 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i)
5779 g_hash_table_destroy (acfg->patch_to_got_offset_by_type [i]);
5780 g_free (acfg->patch_to_got_offset_by_type);
5781 mono_mempool_destroy (acfg->mempool);
5786 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
5788 MonoImage *image = ass->image;
5790 MonoAotCompile *acfg;
5791 char *outfile_name, *tmp_outfile_name, *p;
5795 printf ("Mono Ahead of Time compiler - compiling assembly %s\n", image->name);
5797 acfg = acfg_create (ass, opts);
5799 memset (&acfg->aot_opts, 0, sizeof (acfg->aot_opts));
5800 acfg->aot_opts.write_symbols = TRUE;
5801 acfg->aot_opts.ntrampolines = 1024;
5802 acfg->aot_opts.nrgctx_trampolines = 1024;
5804 mono_aot_parse_options (aot_options, &acfg->aot_opts);
5806 if (acfg->aot_opts.static_link)
5807 acfg->aot_opts.autoreg = TRUE;
5809 //acfg->aot_opts.print_skipped_methods = TRUE;
5811 #ifndef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
5812 if (acfg->aot_opts.full_aot) {
5813 printf ("--aot=full is not supported on this platform.\n");
5818 if (acfg->aot_opts.static_link)
5819 acfg->aot_opts.asm_writer = TRUE;
5821 if (acfg->aot_opts.soft_debug) {
5822 MonoDebugOptions *opt = mini_get_debug_options ();
5824 opt->mdb_optimizations = TRUE;
5825 opt->gen_seq_points = TRUE;
5827 if (mono_debug_format == MONO_DEBUG_FORMAT_NONE) {
5828 fprintf (stderr, "The soft-debug AOT option requires the --debug option.\n");
5835 acfg->aot_opts.asm_writer = TRUE;
5836 acfg->flags |= MONO_AOT_FILE_FLAG_WITH_LLVM;
5839 if (acfg->aot_opts.full_aot)
5840 acfg->flags |= MONO_AOT_FILE_FLAG_FULL_AOT;
5842 load_profile_files (acfg);
5844 acfg->num_trampolines [MONO_AOT_TRAMP_SPECIFIC] = acfg->aot_opts.full_aot ? acfg->aot_opts.ntrampolines : 0;
5845 #ifdef MONO_ARCH_HAVE_STATIC_RGCTX_TRAMPOLINE
5846 acfg->num_trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = acfg->aot_opts.full_aot ? acfg->aot_opts.nrgctx_trampolines : 0;
5848 acfg->num_trampolines [MONO_AOT_TRAMP_IMT_THUNK] = acfg->aot_opts.full_aot ? 128 : 0;
5850 acfg->got_symbol_base = g_strdup_printf ("mono_aot_%s_got", acfg->image->assembly->aname.name);
5851 acfg->plt_symbol = g_strdup_printf ("mono_aot_%s_plt", acfg->image->assembly->aname.name);
5853 /* Get rid of characters which cannot occur in symbols */
5854 for (p = acfg->got_symbol_base; *p; ++p) {
5855 if (!(isalnum (*p) || *p == '_'))
5858 for (p = acfg->plt_symbol; *p; ++p) {
5859 if (!(isalnum (*p) || *p == '_'))
5863 acfg->temp_prefix = img_writer_get_temp_label_prefix (NULL);
5865 acfg->method_index = 1;
5867 collect_methods (acfg);
5869 acfg->cfgs_size = acfg->methods->len + 32;
5870 acfg->cfgs = g_new0 (MonoCompile*, acfg->cfgs_size);
5872 /* PLT offset 0 is reserved for the PLT trampoline */
5873 acfg->plt_offset = 1;
5877 mono_llvm_create_aot_module (acfg->got_symbol_base);
5880 /* GOT offset 0 is reserved for the address of the current assembly */
5884 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
5885 ji->type = MONO_PATCH_INFO_IMAGE;
5886 ji->data.image = acfg->image;
5888 get_got_offset (acfg, ji);
5890 /* Slot 1 is reserved for the mscorlib got addr */
5891 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
5892 ji->type = MONO_PATCH_INFO_MSCORLIB_GOT_ADDR;
5893 get_got_offset (acfg, ji);
5898 compile_methods (acfg);
5902 acfg->stats.jit_time = TV_ELAPSED (atv, btv);
5908 if (acfg->aot_opts.asm_only) {
5909 if (acfg->aot_opts.outfile)
5910 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5912 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
5914 acfg->tmpfname = g_strdup ("temp.s");
5918 emit_llvm_file (acfg);
5921 if (!acfg->aot_opts.asm_only && !acfg->aot_opts.asm_writer && bin_writer_supported ()) {
5922 if (acfg->aot_opts.outfile)
5923 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5925 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
5928 * Can't use g_file_open_tmp () as it will be deleted at exit, and
5929 * it might be in another file system so the rename () won't work.
5931 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
5933 acfg->fp = fopen (tmp_outfile_name, "w");
5935 printf ("Unable to create temporary file '%s': %s\n", tmp_outfile_name, strerror (errno));
5939 acfg->w = img_writer_create (acfg->fp, TRUE);
5940 acfg->use_bin_writer = TRUE;
5943 /* Append to the .s file created by llvm */
5944 /* FIXME: Use multiple files instead */
5945 acfg->fp = fopen (acfg->tmpfname, "a+");
5947 if (acfg->aot_opts.asm_only) {
5948 if (acfg->aot_opts.outfile)
5949 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5951 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
5952 acfg->fp = fopen (acfg->tmpfname, "w+");
5954 int i = g_file_open_tmp ("mono_aot_XXXXXX", &acfg->tmpfname, NULL);
5955 acfg->fp = fdopen (i, "w+");
5957 g_assert (acfg->fp);
5959 acfg->w = img_writer_create (acfg->fp, FALSE);
5961 tmp_outfile_name = NULL;
5962 outfile_name = NULL;
5966 * The prefix LLVM likes to put in front of symbol names on darwin.
5967 * The mach-os specs require this for globals, but LLVM puts them in front of all
5968 * symbols. We need to handle this, since we need to refer to LLVM generated
5971 acfg->llvm_label_prefix = "";
5973 acfg->llvm_label_prefix = LLVM_LABEL_PREFIX;
5975 acfg->got_symbol = g_strdup_printf ("%s%s", acfg->llvm_label_prefix, acfg->got_symbol_base);
5977 /* Compute symbols for methods */
5978 for (i = 0; i < acfg->nmethods; ++i) {
5979 if (acfg->cfgs [i]) {
5980 MonoCompile *cfg = acfg->cfgs [i];
5981 int method_index = get_method_index (acfg, cfg->orig_method);
5983 cfg->asm_symbol = g_strdup_printf ("%s%sm_%x", acfg->temp_prefix, LLVM_LABEL_PREFIX, method_index);
5987 if (!acfg->aot_opts.nodebug)
5988 acfg->dwarf = mono_dwarf_writer_create (acfg->w, NULL, 0, FALSE);
5990 img_writer_emit_start (acfg->w);
5993 mono_dwarf_writer_emit_base_info (acfg->dwarf, mono_arch_get_cie_program ());
5999 emit_extra_methods (acfg);
6001 emit_trampolines (acfg);
6003 emit_class_name_table (acfg);
6005 emit_got_info (acfg);
6007 emit_exception_info (acfg);
6009 emit_unwind_info (acfg);
6011 emit_class_info (acfg);
6015 emit_image_table (acfg);
6019 emit_file_info (acfg);
6023 emit_globals (acfg);
6025 emit_autoreg (acfg);
6028 emit_dwarf_info (acfg);
6029 mono_dwarf_writer_close (acfg->dwarf);
6032 emit_mem_end (acfg);
6036 acfg->stats.gen_time = TV_ELAPSED (atv, btv);
6039 g_assert (acfg->got_offset <= acfg->final_got_size);
6041 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);
6044 res = img_writer_emit_writeout (acfg->w);
6049 if (acfg->use_bin_writer) {
6050 int err = rename (tmp_outfile_name, outfile_name);
6053 printf ("Unable to rename '%s' to '%s': %s\n", tmp_outfile_name, outfile_name, strerror (errno));
6057 res = compile_asm (acfg);
6064 acfg->stats.link_time = TV_ELAPSED (atv, btv);
6066 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);
6067 if (acfg->stats.genericcount)
6068 printf ("%d methods are generic (%d%%)\n", acfg->stats.genericcount, acfg->stats.mcount ? (acfg->stats.genericcount * 100) / acfg->stats.mcount : 100);
6069 if (acfg->stats.abscount)
6070 printf ("%d methods contain absolute addresses (%d%%)\n", acfg->stats.abscount, acfg->stats.mcount ? (acfg->stats.abscount * 100) / acfg->stats.mcount : 100);
6071 if (acfg->stats.lmfcount)
6072 printf ("%d methods contain lmf pointers (%d%%)\n", acfg->stats.lmfcount, acfg->stats.mcount ? (acfg->stats.lmfcount * 100) / acfg->stats.mcount : 100);
6073 if (acfg->stats.ocount)
6074 printf ("%d methods have other problems (%d%%)\n", acfg->stats.ocount, acfg->stats.mcount ? (acfg->stats.ocount * 100) / acfg->stats.mcount : 100);
6076 printf ("Methods compiled with LLVM: %d (%d%%)\n", acfg->stats.llvm_count, acfg->stats.mcount ? (acfg->stats.llvm_count * 100) / acfg->stats.mcount : 100);
6077 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);
6078 printf ("Direct calls: %d (%d%%)\n", acfg->stats.direct_calls, acfg->stats.all_calls ? (acfg->stats.direct_calls * 100) / acfg->stats.all_calls : 100);
6080 if (acfg->aot_opts.stats) {
6083 printf ("GOT slot distribution:\n");
6084 for (i = 0; i < MONO_PATCH_INFO_NONE; ++i)
6085 if (acfg->stats.got_slot_types [i])
6086 printf ("\t%s: %d\n", get_patch_name (i), acfg->stats.got_slot_types [i]);
6089 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);
6101 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)