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-internal.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 #if defined(__linux__)
72 #define RODATA_SECT ".rodata"
74 #define RODATA_SECT ".text"
77 #define TV_DECLARE(name) gint64 name
78 #define TV_GETTIME(tv) tv = mono_100ns_ticks ()
79 #define TV_ELAPSED(start,end) (((end) - (start)) / 10)
82 #define SHARED_EXT ".dll"
83 #elif defined(__ppc__) && defined(__MACH__)
84 #define SHARED_EXT ".dylib"
86 #define SHARED_EXT ".so"
89 #define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
90 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
91 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
93 typedef struct MonoAotOptions {
96 gboolean write_symbols;
97 gboolean metadata_only;
98 gboolean bind_to_runtime_version;
101 gboolean static_link;
108 int nrgctx_trampolines;
109 int nimt_trampolines;
110 gboolean print_skipped_methods;
116 typedef struct MonoAotStats {
117 int ccount, mcount, lmfcount, abscount, gcount, ocount, genericcount;
118 int code_size, info_size, ex_info_size, unwind_info_size, got_size, class_info_size, got_info_size;
119 int methods_without_got_slots, direct_calls, all_calls, llvm_count;
120 int got_slots, offsets_size;
121 int got_slot_types [MONO_PATCH_INFO_NONE];
122 int jit_time, gen_time, link_time;
125 typedef struct MonoAotCompile {
128 GHashTable *method_indexes;
129 GHashTable *method_depth;
132 GHashTable *patch_to_plt_entry;
133 GHashTable *plt_offset_to_entry;
134 GHashTable *patch_to_got_offset;
135 GHashTable **patch_to_got_offset_by_type;
136 GPtrArray *got_patches;
137 GHashTable *image_hash;
138 GHashTable *method_to_cfg;
139 GHashTable *token_info_hash;
140 GPtrArray *extra_methods;
141 GPtrArray *image_table;
144 guint32 *plt_got_info_offsets;
145 guint32 got_offset, plt_offset, plt_got_offset_base;
146 guint32 final_got_size;
147 /* Number of GOT entries reserved for trampolines */
148 guint32 num_trampoline_got_entries;
150 guint32 num_trampolines [MONO_AOT_TRAMP_NUM];
151 guint32 trampoline_got_offset_base [MONO_AOT_TRAMP_NUM];
152 guint32 trampoline_size [MONO_AOT_TRAMP_NUM];
154 MonoAotOptions aot_opts;
157 MonoMemPool *mempool;
160 char *static_linking_symbol;
161 CRITICAL_SECTION mutex;
162 gboolean use_bin_writer;
164 MonoDwarfWriter *dwarf;
168 GHashTable *unwind_info_offsets;
169 GPtrArray *unwind_ops;
170 guint32 unwind_info_offset;
171 char *got_symbol_base;
174 GHashTable *method_label_hash;
175 const char *temp_prefix;
176 const char *llvm_label_prefix;
177 guint32 label_generator;
179 MonoAotFileFlags flags;
180 MonoDynamicStream blob;
189 #define mono_acfg_lock(acfg) EnterCriticalSection (&((acfg)->mutex))
190 #define mono_acfg_unlock(acfg) LeaveCriticalSection (&((acfg)->mutex))
192 /* This points to the current acfg in LLVM mode */
193 static MonoAotCompile *llvm_acfg;
195 #ifdef HAVE_ARRAY_ELEM_INIT
196 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
197 #define MSGSTRFIELD1(line) str##line
198 static const struct msgstr_t {
199 #define PATCH_INFO(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
200 #include "patch-info.h"
203 #define PATCH_INFO(a,b) b,
204 #include "patch-info.h"
207 static const gint16 opidx [] = {
208 #define PATCH_INFO(a,b) [MONO_PATCH_INFO_ ## a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
209 #include "patch-info.h"
213 static G_GNUC_UNUSED const char*
214 get_patch_name (int info)
216 return (const char*)&opstr + opidx [info];
220 #define PATCH_INFO(a,b) b,
221 static const char* const
222 patch_types [MONO_PATCH_INFO_NUM + 1] = {
223 #include "patch-info.h"
227 static G_GNUC_UNUSED const char*
228 get_patch_name (int info)
230 return patch_types [info];
235 /* Wrappers around the image writer functions */
238 emit_section_change (MonoAotCompile *acfg, const char *section_name, int subsection_index)
240 img_writer_emit_section_change (acfg->w, section_name, subsection_index);
244 emit_push_section (MonoAotCompile *acfg, const char *section_name, int subsection)
246 img_writer_emit_push_section (acfg->w, section_name, subsection);
250 emit_pop_section (MonoAotCompile *acfg)
252 img_writer_emit_pop_section (acfg->w);
256 emit_local_symbol (MonoAotCompile *acfg, const char *name, const char *end_label, gboolean func)
258 img_writer_emit_local_symbol (acfg->w, name, end_label, func);
262 emit_label (MonoAotCompile *acfg, const char *name)
264 img_writer_emit_label (acfg->w, name);
268 emit_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
270 img_writer_emit_bytes (acfg->w, buf, size);
274 emit_string (MonoAotCompile *acfg, const char *value)
276 img_writer_emit_string (acfg->w, value);
280 emit_line (MonoAotCompile *acfg)
282 img_writer_emit_line (acfg->w);
286 emit_alignment (MonoAotCompile *acfg, int size)
288 img_writer_emit_alignment (acfg->w, size);
292 emit_pointer_unaligned (MonoAotCompile *acfg, const char *target)
294 img_writer_emit_pointer_unaligned (acfg->w, target);
298 emit_pointer (MonoAotCompile *acfg, const char *target)
300 img_writer_emit_pointer (acfg->w, target);
304 emit_int16 (MonoAotCompile *acfg, int value)
306 img_writer_emit_int16 (acfg->w, value);
310 emit_int32 (MonoAotCompile *acfg, int value)
312 img_writer_emit_int32 (acfg->w, value);
316 emit_symbol_diff (MonoAotCompile *acfg, const char *end, const char* start, int offset)
318 img_writer_emit_symbol_diff (acfg->w, end, start, offset);
322 emit_zero_bytes (MonoAotCompile *acfg, int num)
324 img_writer_emit_zero_bytes (acfg->w, num);
328 emit_byte (MonoAotCompile *acfg, guint8 val)
330 img_writer_emit_byte (acfg->w, val);
333 static G_GNUC_UNUSED void
334 emit_global_inner (MonoAotCompile *acfg, const char *name, gboolean func)
336 img_writer_emit_global (acfg->w, name, func);
340 emit_global (MonoAotCompile *acfg, const char *name, gboolean func)
342 if (acfg->aot_opts.no_dlsym) {
343 g_ptr_array_add (acfg->globals, g_strdup (name));
344 img_writer_emit_local_symbol (acfg->w, name, NULL, func);
346 img_writer_emit_global (acfg->w, name, func);
351 emit_symbol_size (MonoAotCompile *acfg, const char *name, const char *end_label)
353 img_writer_emit_symbol_size (acfg->w, name, end_label);
357 emit_string_symbol (MonoAotCompile *acfg, const char *name, const char *value)
359 img_writer_emit_section_change (acfg->w, RODATA_SECT, 1);
360 emit_global (acfg, name, FALSE);
361 img_writer_emit_label (acfg->w, name);
362 img_writer_emit_string (acfg->w, value);
365 static G_GNUC_UNUSED void
366 emit_uleb128 (MonoAotCompile *acfg, guint32 value)
369 guint8 b = value & 0x7f;
371 if (value != 0) /* more bytes to come */
377 static G_GNUC_UNUSED void
378 emit_sleb128 (MonoAotCompile *acfg, gint64 value)
381 gboolean negative = (value < 0);
388 /* the following is unnecessary if the
389 * implementation of >>= uses an arithmetic rather
390 * than logical shift for a signed left operand
394 value |= - ((gint64)1 <<(size - 7));
395 /* sign bit of byte is second high order bit (0x40) */
396 if ((value == 0 && !(byte & 0x40)) ||
397 (value == -1 && (byte & 0x40)))
401 emit_byte (acfg, byte);
405 static G_GNUC_UNUSED void
406 encode_uleb128 (guint32 value, guint8 *buf, guint8 **endbuf)
411 guint8 b = value & 0x7f;
413 if (value != 0) /* more bytes to come */
421 static G_GNUC_UNUSED void
422 encode_sleb128 (gint32 value, guint8 *buf, guint8 **endbuf)
425 gboolean negative = (value < 0);
433 /* the following is unnecessary if the
434 * implementation of >>= uses an arithmetic rather
435 * than logical shift for a signed left operand
439 value |= - (1 <<(size - 7));
440 /* sign bit of byte is second high order bit (0x40) */
441 if ((value == 0 && !(byte & 0x40)) ||
442 (value == -1 && (byte & 0x40)))
452 /* ARCHITECTURE SPECIFIC CODE */
454 #if defined(TARGET_X86) || defined(TARGET_AMD64) || defined(TARGET_ARM) || defined(TARGET_POWERPC)
455 #define EMIT_DWARF_INFO 1
458 #if defined(TARGET_ARM)
459 #define AOT_FUNC_ALIGNMENT 4
461 #define AOT_FUNC_ALIGNMENT 16
464 #if defined(TARGET_POWERPC64) && !defined(__mono_ilp32__)
465 #define PPC_LD_OP "ld"
466 #define PPC_LDX_OP "ldx"
468 #define PPC_LD_OP "lwz"
469 #define PPC_LDX_OP "lwzx"
475 #define LLVM_LABEL_PREFIX "_"
477 #define LLVM_LABEL_PREFIX ""
482 #define LLC_TARGET_ARGS "-march=arm -mattr=+v6 -mtriple=arm-apple-darwin"
484 //#define LLC_TARGET_ARGS "-march=arm -mtriple=arm-linux-gnueabi -soft-float"
486 #define LLC_TARGET_ARGS ""
490 * arch_emit_direct_call:
492 * Emit a direct call to the symbol TARGET. CALL_SIZE is set to the size of the
496 arch_emit_direct_call (MonoAotCompile *acfg, const char *target, int *call_size)
498 #if defined(TARGET_X86) || defined(TARGET_AMD64)
499 /* Need to make sure this is exactly 5 bytes long */
500 emit_byte (acfg, '\xe8');
501 emit_symbol_diff (acfg, target, ".", -4);
503 #elif defined(TARGET_ARM)
504 if (acfg->use_bin_writer) {
511 img_writer_emit_reloc (acfg->w, R_ARM_CALL, target, -8);
512 emit_bytes (acfg, buf, 4);
514 img_writer_emit_unset_mode (acfg->w);
515 fprintf (acfg->fp, "bl %s\n", target);
518 #elif defined(TARGET_POWERPC)
519 if (acfg->use_bin_writer) {
520 g_assert_not_reached ();
522 img_writer_emit_unset_mode (acfg->w);
523 fprintf (acfg->fp, "bl %s\n", target);
527 g_assert_not_reached ();
533 * - we use an approach similar to the x86 abi: reserve a register (r30) to hold
535 * - The full-aot trampolines need access to the GOT of mscorlib, so we store
536 * in in the 2. slot of every GOT, and require every method to place the GOT
537 * address in r30, even when it doesn't access the GOT otherwise. This way,
538 * the trampolines can compute the mscorlib GOT address by loading 4(r30).
543 * PPC64 uses function descriptors which greatly complicate all code, since
544 * these are used very inconsistently in the runtime. Some functions like
545 * mono_compile_method () return ftn descriptors, while others like the
546 * trampoline creation functions do not.
547 * We assume that all GOT slots contain function descriptors, and create
548 * descriptors in aot-runtime.c when needed.
549 * The ppc64 abi uses r2 to hold the address of the TOC/GOT, which is loaded
550 * from function descriptors, we could do the same, but it would require
551 * rewriting all the ppc/aot code to handle function descriptors properly.
552 * So instead, we use the same approach as on PPC32.
553 * This is a horrible mess, but fixing it would probably lead to an even bigger
559 * - similar to the PPC32 design, we reserve EBX to hold the GOT pointer.
562 #ifdef MONO_ARCH_AOT_SUPPORTED
564 * arch_emit_got_offset:
566 * The memory pointed to by CODE should hold native code for computing the GOT
567 * address. Emit this code while patching it with the offset between code and
568 * the GOT. CODE_SIZE is set to the number of bytes emitted.
571 arch_emit_got_offset (MonoAotCompile *acfg, guint8 *code, int *code_size)
573 #if defined(TARGET_POWERPC64)
574 g_assert (!acfg->use_bin_writer);
575 img_writer_emit_unset_mode (acfg->w);
577 * The ppc32 code doesn't seem to work on ppc64, the assembler complains about
578 * unsupported relocations. So we store the got address into the .Lgot_addr
579 * symbol which is in the text segment, compute its address, and load it.
581 fprintf (acfg->fp, ".L%d:\n", acfg->label_generator);
582 fprintf (acfg->fp, "lis 0, (.Lgot_addr + 4 - .L%d)@h\n", acfg->label_generator);
583 fprintf (acfg->fp, "ori 0, 0, (.Lgot_addr + 4 - .L%d)@l\n", acfg->label_generator);
584 fprintf (acfg->fp, "add 30, 30, 0\n");
585 fprintf (acfg->fp, "%s 30, 0(30)\n", PPC_LD_OP);
586 acfg->label_generator ++;
588 #elif defined(TARGET_POWERPC)
589 g_assert (!acfg->use_bin_writer);
590 img_writer_emit_unset_mode (acfg->w);
591 fprintf (acfg->fp, ".L%d:\n", acfg->label_generator);
592 fprintf (acfg->fp, "lis 0, (%s + 4 - .L%d)@h\n", acfg->got_symbol, acfg->label_generator);
593 fprintf (acfg->fp, "ori 0, 0, (%s + 4 - .L%d)@l\n", acfg->got_symbol, acfg->label_generator);
594 acfg->label_generator ++;
597 guint32 offset = mono_arch_get_patch_offset (code);
598 emit_bytes (acfg, code, offset);
599 emit_symbol_diff (acfg, acfg->got_symbol, ".", offset);
601 *code_size = offset + 4;
606 * arch_emit_got_access:
608 * The memory pointed to by CODE should hold native code for loading a GOT
609 * slot. Emit this code while patching it so it accesses the GOT slot GOT_SLOT.
610 * CODE_SIZE is set to the number of bytes emitted.
613 arch_emit_got_access (MonoAotCompile *acfg, guint8 *code, int got_slot, int *code_size)
615 /* Emit beginning of instruction */
616 emit_bytes (acfg, code, mono_arch_get_patch_offset (code));
618 /* Emit the offset */
620 emit_symbol_diff (acfg, acfg->got_symbol, ".", (unsigned int) ((got_slot * sizeof (gpointer)) - 4));
621 *code_size = mono_arch_get_patch_offset (code) + 4;
622 #elif defined(TARGET_X86)
623 emit_int32 (acfg, (unsigned int) ((got_slot * sizeof (gpointer))));
624 *code_size = mono_arch_get_patch_offset (code) + 4;
625 #elif defined(TARGET_ARM)
626 emit_symbol_diff (acfg, acfg->got_symbol, ".", (unsigned int) ((got_slot * sizeof (gpointer))) - 12);
627 *code_size = mono_arch_get_patch_offset (code) + 4;
628 #elif defined(TARGET_POWERPC)
634 ppc_load32 (code, ppc_r0, got_slot * sizeof (gpointer));
635 g_assert (code - buf == 8);
636 emit_bytes (acfg, buf, code - buf);
637 *code_size = code - buf;
640 g_assert_not_reached ();
647 * arch_emit_plt_entry:
649 * Emit code for the PLT entry with index INDEX.
652 arch_emit_plt_entry (MonoAotCompile *acfg, int index)
654 #if defined(TARGET_X86)
655 guint32 offset = (acfg->plt_got_offset_base + index) * sizeof (gpointer);
657 /* jmp *<offset>(%ebx) */
658 emit_byte (acfg, 0xff);
659 emit_byte (acfg, 0xa3);
660 emit_int32 (acfg, offset);
661 /* Used by mono_aot_get_plt_info_offset */
662 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
663 #elif defined(TARGET_AMD64)
665 * We can't emit jumps because they are 32 bits only so they can't be patched.
666 * So we make indirect calls through GOT entries which are patched by the AOT
667 * loader to point to .Lpd entries.
669 /* jmpq *<offset>(%rip) */
670 emit_byte (acfg, '\xff');
671 emit_byte (acfg, '\x25');
672 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) -4);
673 /* Used by mono_aot_get_plt_info_offset */
674 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
675 #elif defined(TARGET_ARM)
680 * - optimize OP_AOTCONST implementation
681 * - optimize the PLT entries
682 * - optimize SWITCH AOT implementation
685 if (acfg->use_bin_writer && FALSE) {
686 /* FIXME: mono_arch_patch_plt_entry () needs to decode this */
687 /* We only emit 1 relocation since we implement it ourselves anyway */
688 img_writer_emit_reloc (acfg->w, R_ARM_ALU_PC_G0_NC, acfg->got_symbol, ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) - 8);
689 /* FIXME: A 2 instruction encoding is sufficient in most cases */
690 ARM_ADD_REG_IMM (code, ARMREG_IP, ARMREG_PC, 0, 0);
691 ARM_ADD_REG_IMM (code, ARMREG_IP, ARMREG_IP, 0, 0);
692 ARM_LDR_IMM (code, ARMREG_PC, ARMREG_IP, 0);
693 emit_bytes (acfg, buf, code - buf);
694 /* Used by mono_aot_get_plt_info_offset */
695 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
697 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 0);
698 ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_IP);
699 emit_bytes (acfg, buf, code - buf);
700 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) - 4);
701 /* Used by mono_aot_get_plt_info_offset */
702 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
705 * The plt_got_info_offset is computed automatically by
706 * mono_aot_get_plt_info_offset (), so no need to save it here.
708 #elif defined(TARGET_POWERPC)
709 guint32 offset = (acfg->plt_got_offset_base + index) * sizeof (gpointer);
711 /* The GOT address is guaranteed to be in r30 by OP_LOAD_GOTADDR */
712 g_assert (!acfg->use_bin_writer);
713 img_writer_emit_unset_mode (acfg->w);
714 fprintf (acfg->fp, "lis 11, %d@h\n", offset);
715 fprintf (acfg->fp, "ori 11, 11, %d@l\n", offset);
716 fprintf (acfg->fp, "add 11, 11, 30\n");
717 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
718 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
719 fprintf (acfg->fp, "%s 2, %d(11)\n", PPC_LD_OP, (int)sizeof (gpointer));
720 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
722 fprintf (acfg->fp, "mtctr 11\n");
723 fprintf (acfg->fp, "bctr\n");
724 emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
726 g_assert_not_reached ();
731 * arch_emit_specific_trampoline:
733 * Emit code for a specific trampoline. OFFSET is the offset of the first of
734 * two GOT slots which contain the generic trampoline address and the trampoline
735 * argument. TRAMP_SIZE is set to the size of the emitted trampoline.
738 arch_emit_specific_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
741 * The trampolines created here are variations of the specific
742 * trampolines created in mono_arch_create_specific_trampoline (). The
744 * - the generic trampoline address is taken from a got slot.
745 * - the offset of the got slot where the trampoline argument is stored
746 * is embedded in the instruction stream, and the generic trampoline
747 * can load the argument by loading the offset, adding it to the
748 * address of the trampoline to get the address of the got slot, and
749 * loading the argument from there.
750 * - all the trampolines should be of the same length.
752 #if defined(TARGET_AMD64)
753 /* This should be exactly 16 bytes long */
755 /* call *<offset>(%rip) */
756 emit_byte (acfg, '\x41');
757 emit_byte (acfg, '\xff');
758 emit_byte (acfg, '\x15');
759 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
760 /* This should be relative to the start of the trampoline */
761 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 19);
762 emit_zero_bytes (acfg, 5);
763 #elif defined(TARGET_ARM)
767 /* This should be exactly 20 bytes long */
770 ARM_PUSH (code, 0x5fff);
771 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 4);
772 /* Load the value from the GOT */
773 ARM_LDR_REG_REG (code, ARMREG_R1, ARMREG_PC, ARMREG_R1);
775 ARM_BLX_REG (code, ARMREG_R1);
777 g_assert (code - buf == 16);
780 emit_bytes (acfg, buf, code - buf);
782 * Only one offset is needed, since the second one would be equal to the
785 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 4);
786 //emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4 + 8);
787 #elif defined(TARGET_POWERPC)
794 g_assert (!acfg->use_bin_writer);
797 * PPC has no ip relative addressing, so we need to compute the address
798 * of the mscorlib got. That is slow and complex, so instead, we store it
799 * in the second got slot of every aot image. The caller already computed
800 * the address of its got and placed it into r30.
802 img_writer_emit_unset_mode (acfg->w);
803 /* Load mscorlib got address */
804 fprintf (acfg->fp, "%s 0, %d(30)\n", PPC_LD_OP, (int)sizeof (gpointer));
805 /* Load generic trampoline address */
806 fprintf (acfg->fp, "lis 11, %d@h\n", (int)(offset * sizeof (gpointer)));
807 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)(offset * sizeof (gpointer)));
808 fprintf (acfg->fp, "%s 11, 11, 0\n", PPC_LDX_OP);
809 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
810 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
812 fprintf (acfg->fp, "mtctr 11\n");
813 /* Load trampoline argument */
814 /* On ppc, we pass it normally to the generic trampoline */
815 fprintf (acfg->fp, "lis 11, %d@h\n", (int)((offset + 1) * sizeof (gpointer)));
816 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)((offset + 1) * sizeof (gpointer)));
817 fprintf (acfg->fp, "%s 0, 11, 0\n", PPC_LDX_OP);
818 /* Branch to generic trampoline */
819 fprintf (acfg->fp, "bctr\n");
821 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
822 *tramp_size = 10 * 4;
826 #elif defined(TARGET_X86)
830 /* Similar to the PPC code above */
832 /* FIXME: Could this clobber the register needed by get_vcall_slot () ? */
834 /* We clobber ECX, since EAX is used as MONO_ARCH_MONITOR_OBJECT_REG */
835 #ifdef MONO_ARCH_MONITOR_OBJECT_REG
836 g_assert (MONO_ARCH_MONITOR_OBJECT_REG != X86_ECX);
840 /* Load mscorlib got address */
841 x86_mov_reg_membase (code, X86_ECX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4);
842 /* Push trampoline argument */
843 x86_push_membase (code, X86_ECX, (offset + 1) * sizeof (gpointer));
844 /* Load generic trampoline address */
845 x86_mov_reg_membase (code, X86_ECX, X86_ECX, offset * sizeof (gpointer), 4);
846 /* Branch to generic trampoline */
847 x86_jump_reg (code, X86_ECX);
849 emit_bytes (acfg, buf, code - buf);
852 g_assert (code - buf == *tramp_size);
854 g_assert_not_reached ();
859 * arch_emit_unbox_trampoline:
861 * Emit code for the unbox trampoline for METHOD used in the full-aot case.
862 * CALL_TARGET is the symbol pointing to the native code of METHOD.
865 arch_emit_unbox_trampoline (MonoAotCompile *acfg, MonoMethod *method, MonoGenericSharingContext *gsctx, const char *call_target)
867 #if defined(TARGET_AMD64)
872 this_reg = mono_arch_get_this_arg_reg (mono_method_signature (method), gsctx, NULL);
874 amd64_alu_reg_imm (code, X86_ADD, this_reg, sizeof (MonoObject));
876 emit_bytes (acfg, buf, code - buf);
878 emit_byte (acfg, '\xe9');
879 emit_symbol_diff (acfg, call_target, ".", -4);
880 #elif defined(TARGET_X86)
885 if (MONO_TYPE_ISSTRUCT (mono_method_signature (method)->ret))
890 x86_alu_membase_imm (code, X86_ADD, X86_ESP, this_pos, sizeof (MonoObject));
892 emit_bytes (acfg, buf, code - buf);
895 emit_byte (acfg, '\xe9');
896 emit_symbol_diff (acfg, call_target, ".", -4);
897 #elif defined(TARGET_ARM)
904 if (MONO_TYPE_ISSTRUCT (mono_method_signature (method)->ret))
907 ARM_ADD_REG_IMM8 (code, this_pos, this_pos, sizeof (MonoObject));
909 emit_bytes (acfg, buf, code - buf);
911 if (acfg->use_bin_writer) {
918 img_writer_emit_reloc (acfg->w, R_ARM_JUMP24, call_target, -8);
919 emit_bytes (acfg, buf, 4);
921 fprintf (acfg->fp, "\n\tb %s\n", call_target);
923 #elif defined(TARGET_POWERPC)
926 if (MONO_TYPE_ISSTRUCT (mono_method_signature (method)->ret))
929 g_assert (!acfg->use_bin_writer);
931 fprintf (acfg->fp, "\n\taddi %d, %d, %d\n", this_pos, this_pos, (int)sizeof (MonoObject));
932 fprintf (acfg->fp, "\n\tb %s\n", call_target);
934 g_assert_not_reached ();
939 * arch_emit_static_rgctx_trampoline:
941 * Emit code for a static rgctx trampoline. OFFSET is the offset of the first of
942 * two GOT slots which contain the rgctx argument, and the method to jump to.
943 * TRAMP_SIZE is set to the size of the emitted trampoline.
944 * These kinds of trampolines cannot be enumerated statically, since there could
945 * be one trampoline per method instantiation, so we emit the same code for all
946 * trampolines, and parameterize them using two GOT slots.
949 arch_emit_static_rgctx_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
951 #if defined(TARGET_AMD64)
952 /* This should be exactly 13 bytes long */
955 /* mov <OFFSET>(%rip), %r10 */
956 emit_byte (acfg, '\x4d');
957 emit_byte (acfg, '\x8b');
958 emit_byte (acfg, '\x15');
959 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
961 /* jmp *<offset>(%rip) */
962 emit_byte (acfg, '\xff');
963 emit_byte (acfg, '\x25');
964 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4);
965 #elif defined(TARGET_ARM)
969 /* This should be exactly 24 bytes long */
972 /* Load rgctx value */
973 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 8);
974 ARM_LDR_REG_REG (code, MONO_ARCH_RGCTX_REG, ARMREG_PC, ARMREG_IP);
975 /* Load branch addr + branch */
976 ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 4);
977 ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_IP);
979 g_assert (code - buf == 16);
982 emit_bytes (acfg, buf, code - buf);
983 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4 + 8);
984 emit_symbol_diff (acfg, acfg->got_symbol, ".", ((offset + 1) * sizeof (gpointer)) - 4 + 4);
985 #elif defined(TARGET_POWERPC)
992 g_assert (!acfg->use_bin_writer);
995 * PPC has no ip relative addressing, so we need to compute the address
996 * of the mscorlib got. That is slow and complex, so instead, we store it
997 * in the second got slot of every aot image. The caller already computed
998 * the address of its got and placed it into r30.
1000 img_writer_emit_unset_mode (acfg->w);
1001 /* Load mscorlib got address */
1002 fprintf (acfg->fp, "%s 0, %d(30)\n", PPC_LD_OP, (int)sizeof (gpointer));
1004 fprintf (acfg->fp, "lis 11, %d@h\n", (int)(offset * sizeof (gpointer)));
1005 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)(offset * sizeof (gpointer)));
1006 fprintf (acfg->fp, "%s %d, 11, 0\n", PPC_LDX_OP, MONO_ARCH_RGCTX_REG);
1007 /* Load target address */
1008 fprintf (acfg->fp, "lis 11, %d@h\n", (int)((offset + 1) * sizeof (gpointer)));
1009 fprintf (acfg->fp, "ori 11, 11, %d@l\n", (int)((offset + 1) * sizeof (gpointer)));
1010 fprintf (acfg->fp, "%s 11, 11, 0\n", PPC_LDX_OP);
1011 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
1012 fprintf (acfg->fp, "%s 2, %d(11)\n", PPC_LD_OP, (int)sizeof (gpointer));
1013 fprintf (acfg->fp, "%s 11, 0(11)\n", PPC_LD_OP);
1015 fprintf (acfg->fp, "mtctr 11\n");
1016 /* Branch to the target address */
1017 fprintf (acfg->fp, "bctr\n");
1019 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
1020 *tramp_size = 11 * 4;
1022 *tramp_size = 9 * 4;
1025 #elif defined(TARGET_X86)
1029 /* Similar to the PPC code above */
1031 g_assert (MONO_ARCH_RGCTX_REG != X86_ECX);
1034 /* Load mscorlib got address */
1035 x86_mov_reg_membase (code, X86_ECX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4);
1037 x86_mov_reg_membase (code, MONO_ARCH_RGCTX_REG, X86_ECX, offset * sizeof (gpointer), 4);
1038 /* Branch to the target address */
1039 x86_jump_membase (code, X86_ECX, (offset + 1) * sizeof (gpointer));
1041 emit_bytes (acfg, buf, code - buf);
1044 g_assert (code - buf == *tramp_size);
1046 g_assert_not_reached ();
1051 * arch_emit_imt_thunk:
1053 * Emit an IMT thunk usable in full-aot mode. The thunk uses 1 got slot which
1054 * points to an array of pointer pairs. The pairs of the form [key, ptr], where
1055 * key is the IMT key, and ptr holds the address of a memory location holding
1056 * the address to branch to if the IMT arg matches the key. The array is
1057 * terminated by a pair whose key is NULL, and whose ptr is the address of the
1059 * TRAMP_SIZE is set to the size of the emitted trampoline.
1062 arch_emit_imt_thunk (MonoAotCompile *acfg, int offset, int *tramp_size)
1064 #if defined(TARGET_AMD64)
1068 code = buf = g_malloc (256);
1070 /* FIXME: Optimize this, i.e. use binary search etc. */
1071 /* Maybe move the body into a separate function (slower, but much smaller) */
1073 /* R10 is a free register */
1076 amd64_alu_membase_imm (code, X86_CMP, AMD64_R10, 0, 0);
1078 amd64_branch8 (code, X86_CC_Z, FALSE, 0);
1081 amd64_alu_membase_reg (code, X86_CMP, AMD64_R10, 0, MONO_ARCH_IMT_REG);
1083 amd64_branch8 (code, X86_CC_Z, FALSE, 0);
1086 amd64_alu_reg_imm (code, X86_ADD, AMD64_R10, 2 * sizeof (gpointer));
1087 amd64_jump_code (code, labels [0]);
1090 mono_amd64_patch (labels [2], code);
1091 amd64_mov_reg_membase (code, AMD64_R10, AMD64_R10, sizeof (gpointer), 8);
1092 amd64_jump_membase (code, AMD64_R10, 0);
1096 mono_amd64_patch (labels [1], code);
1097 x86_breakpoint (code);
1099 /* mov <OFFSET>(%rip), %r10 */
1100 emit_byte (acfg, '\x4d');
1101 emit_byte (acfg, '\x8b');
1102 emit_byte (acfg, '\x15');
1103 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) - 4);
1105 emit_bytes (acfg, buf, code - buf);
1107 *tramp_size = code - buf + 7;
1108 #elif defined(TARGET_X86)
1112 code = buf = g_malloc (256);
1114 /* Allocate a temporary stack slot */
1115 x86_push_reg (code, X86_EAX);
1117 x86_push_reg (code, X86_EAX);
1119 /* Load mscorlib got address */
1120 x86_mov_reg_membase (code, X86_EAX, MONO_ARCH_GOT_REG, sizeof (gpointer), 4);
1122 x86_mov_reg_membase (code, X86_EAX, X86_EAX, offset * sizeof (gpointer), 4);
1125 x86_alu_membase_imm (code, X86_CMP, X86_EAX, 0, 0);
1127 x86_branch8 (code, X86_CC_Z, FALSE, 0);
1130 x86_alu_membase_reg (code, X86_CMP, X86_EAX, 0, MONO_ARCH_IMT_REG);
1132 x86_branch8 (code, X86_CC_Z, FALSE, 0);
1135 x86_alu_reg_imm (code, X86_ADD, X86_EAX, 2 * sizeof (gpointer));
1136 x86_jump_code (code, labels [0]);
1139 mono_x86_patch (labels [2], code);
1140 x86_mov_reg_membase (code, X86_EAX, X86_EAX, sizeof (gpointer), 4);
1141 x86_mov_reg_membase (code, X86_EAX, X86_EAX, 0, 4);
1142 /* Save the target address to the temporary stack location */
1143 x86_mov_membase_reg (code, X86_ESP, 4, X86_EAX, 4);
1145 x86_pop_reg (code, X86_EAX);
1146 /* Jump to the target address */
1151 mono_x86_patch (labels [1], code);
1152 x86_breakpoint (code);
1154 emit_bytes (acfg, buf, code - buf);
1156 *tramp_size = code - buf;
1157 #elif defined(TARGET_ARM)
1159 guint8 *code, *code2, *labels [16];
1163 /* The IMT method is in v5 */
1165 /* Need at least two free registers, plus a slot for storing the pc */
1166 ARM_PUSH (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_R2));
1168 /* Load the parameter from the GOT */
1169 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_PC, 0);
1170 ARM_LDR_REG_REG (code, ARMREG_R0, ARMREG_PC, ARMREG_R0);
1173 ARM_LDR_IMM (code, ARMREG_R1, ARMREG_R0, 0);
1174 ARM_CMP_REG_REG (code, ARMREG_R1, ARMREG_V5);
1176 ARM_B_COND (code, ARMCOND_EQ, 0);
1178 /* End-of-loop check */
1179 ARM_CMP_REG_IMM (code, ARMREG_R1, 0, 0);
1181 ARM_B_COND (code, ARMCOND_EQ, 0);
1184 ARM_ADD_REG_IMM8 (code, ARMREG_R0, ARMREG_R0, sizeof (gpointer) * 2);
1187 arm_patch (labels [4], labels [1]);
1190 arm_patch (labels [2], code);
1191 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 4);
1192 ARM_LDR_IMM (code, ARMREG_R0, ARMREG_R0, 0);
1193 /* Save it to the third stack slot */
1194 ARM_STR_IMM (code, ARMREG_R0, ARMREG_SP, 8);
1195 /* Restore the registers and branch */
1196 ARM_POP (code, (1 << ARMREG_R0)|(1 << ARMREG_R1)|(1 << ARMREG_PC));
1199 arm_patch (labels [3], code);
1204 ARM_LDR_IMM (code2, ARMREG_R0, ARMREG_PC, (code - (labels [0] + 8)));
1206 emit_bytes (acfg, buf, code - buf);
1207 emit_symbol_diff (acfg, acfg->got_symbol, ".", (offset * sizeof (gpointer)) + (code - (labels [0] + 8)) - 4);
1209 *tramp_size = code - buf + 4;
1210 #elif defined(TARGET_POWERPC)
1212 guint8 *code, *labels [16];
1216 /* Load the mscorlib got address */
1217 ppc_ldptr (code, ppc_r11, sizeof (gpointer), ppc_r30);
1218 /* Load the parameter from the GOT */
1219 ppc_load (code, ppc_r0, offset * sizeof (gpointer));
1220 ppc_ldptr_indexed (code, ppc_r11, ppc_r11, ppc_r0);
1222 /* Load and check key */
1224 ppc_ldptr (code, ppc_r0, 0, ppc_r11);
1225 ppc_cmp (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, MONO_ARCH_IMT_REG);
1227 ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0);
1229 /* End-of-loop check */
1230 ppc_cmpi (code, 0, sizeof (gpointer) == 8 ? 1 : 0, ppc_r0, 0);
1232 ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0);
1235 ppc_addi (code, ppc_r11, ppc_r11, 2 * sizeof (gpointer));
1238 mono_ppc_patch (labels [4], labels [1]);
1241 mono_ppc_patch (labels [2], code);
1242 ppc_ldptr (code, ppc_r11, sizeof (gpointer), ppc_r11);
1243 /* r11 now contains the value of the vtable slot */
1244 /* this is not a function descriptor on ppc64 */
1245 ppc_ldptr (code, ppc_r11, 0, ppc_r11);
1246 ppc_mtctr (code, ppc_r11);
1247 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
1250 mono_ppc_patch (labels [3], code);
1254 *tramp_size = code - buf;
1256 emit_bytes (acfg, buf, code - buf);
1258 g_assert_not_reached ();
1263 arch_emit_autoreg (MonoAotCompile *acfg, char *symbol)
1265 #if defined(TARGET_POWERPC) && defined(__mono_ilp32__)
1266 /* Based on code generated by gcc */
1267 img_writer_emit_unset_mode (acfg->w);
1270 #if defined(_MSC_VER) || defined(MONO_CROSS_COMPILE)
1271 ".section .ctors,\"aw\",@progbits\n"
1275 ".section .opd,\"aw\"\n"
1278 ".long .%s,.TOC.@tocbase32\n"
1281 ".type .%s,@function\n"
1283 ".%s:\n", symbol, symbol, symbol, symbol, symbol, symbol, symbol, symbol);
1285 ".section .ctors,\"aw\",@progbits\n"
1289 ".section .opd,\"aw\"\n"
1292 ".long .%1$s,.TOC.@tocbase32\n"
1293 ".size %1$s,.-%1$s\n"
1295 ".type .%1$s,@function\n"
1297 ".%1$s:\n", symbol);
1308 "lis 3, .Lglobals@h\n"
1309 "ori 3, 3, .Lglobals@l\n"
1310 "bl .mono_aot_register_module\n"
1318 #if defined(_MSC_VER) || defined(MONO_CROSS_COMPILE)
1320 ".size .%s,.-.%s\n", symbol, symbol);
1323 ".size .%1$s,.-.%1$s\n", symbol);
1329 /* END OF ARCH SPECIFIC CODE */
1332 mono_get_field_token (MonoClassField *field)
1334 MonoClass *klass = field->parent;
1337 for (i = 0; i < klass->field.count; ++i) {
1338 if (field == &klass->fields [i])
1339 return MONO_TOKEN_FIELD_DEF | (klass->field.first + 1 + i);
1342 g_assert_not_reached ();
1347 encode_value (gint32 value, guint8 *buf, guint8 **endbuf)
1351 //printf ("ENCODE: %d 0x%x.\n", value, value);
1354 * Same encoding as the one used in the metadata, extended to handle values
1355 * greater than 0x1fffffff.
1357 if ((value >= 0) && (value <= 127))
1359 else if ((value >= 0) && (value <= 16383)) {
1360 p [0] = 0x80 | (value >> 8);
1361 p [1] = value & 0xff;
1363 } else if ((value >= 0) && (value <= 0x1fffffff)) {
1364 p [0] = (value >> 24) | 0xc0;
1365 p [1] = (value >> 16) & 0xff;
1366 p [2] = (value >> 8) & 0xff;
1367 p [3] = value & 0xff;
1372 p [1] = (value >> 24) & 0xff;
1373 p [2] = (value >> 16) & 0xff;
1374 p [3] = (value >> 8) & 0xff;
1375 p [4] = value & 0xff;
1383 stream_init (MonoDynamicStream *sh)
1386 sh->alloc_size = 4096;
1387 sh->data = g_malloc (4096);
1389 /* So offsets are > 0 */
1394 make_room_in_stream (MonoDynamicStream *stream, int size)
1396 if (size <= stream->alloc_size)
1399 while (stream->alloc_size <= size) {
1400 if (stream->alloc_size < 4096)
1401 stream->alloc_size = 4096;
1403 stream->alloc_size *= 2;
1406 stream->data = g_realloc (stream->data, stream->alloc_size);
1410 add_stream_data (MonoDynamicStream *stream, const char *data, guint32 len)
1414 make_room_in_stream (stream, stream->index + len);
1415 memcpy (stream->data + stream->index, data, len);
1416 idx = stream->index;
1417 stream->index += len;
1424 * Add data to the binary blob inside the aot image. Returns the offset inside the
1425 * blob where the data was stored.
1428 add_to_blob (MonoAotCompile *acfg, guint8 *data, guint32 data_len)
1430 if (acfg->blob.alloc_size == 0)
1431 stream_init (&acfg->blob);
1433 return add_stream_data (&acfg->blob, (char*)data, data_len);
1437 * emit_offset_table:
1439 * Emit a table of increasing offsets in a compact form using differential encoding.
1440 * There is an index entry for each GROUP_SIZE number of entries. The greater the
1441 * group size, the more compact the table becomes, but the slower it becomes to compute
1442 * a given entry. Returns the size of the table.
1445 emit_offset_table (MonoAotCompile *acfg, int noffsets, int group_size, gint32 *offsets)
1447 gint32 current_offset;
1448 int i, buf_size, ngroups, index_entry_size;
1450 guint32 *index_offsets;
1452 ngroups = (noffsets + (group_size - 1)) / group_size;
1454 index_offsets = g_new0 (guint32, ngroups);
1456 buf_size = noffsets * 4;
1457 p = buf = g_malloc0 (buf_size);
1460 for (i = 0; i < noffsets; ++i) {
1461 //printf ("D: %d -> %d\n", i, offsets [i]);
1462 if ((i % group_size) == 0) {
1463 index_offsets [i / group_size] = p - buf;
1464 /* Emit the full value for these entries */
1465 encode_value (offsets [i], p, &p);
1467 /* The offsets are allowed to be non-increasing */
1468 //g_assert (offsets [i] >= current_offset);
1469 encode_value (offsets [i] - current_offset, p, &p);
1471 current_offset = offsets [i];
1474 if (ngroups && index_offsets [ngroups - 1] < 65000)
1475 index_entry_size = 2;
1477 index_entry_size = 4;
1479 /* Emit the header */
1480 emit_int32 (acfg, noffsets);
1481 emit_int32 (acfg, group_size);
1482 emit_int32 (acfg, ngroups);
1483 emit_int32 (acfg, index_entry_size);
1485 /* Emit the index */
1486 for (i = 0; i < ngroups; ++i) {
1487 if (index_entry_size == 2)
1488 emit_int16 (acfg, index_offsets [i]);
1490 emit_int32 (acfg, index_offsets [i]);
1494 emit_bytes (acfg, buf, p - buf);
1496 return (int)(p - buf) + (ngroups * 4);
1500 get_image_index (MonoAotCompile *cfg, MonoImage *image)
1504 index = GPOINTER_TO_UINT (g_hash_table_lookup (cfg->image_hash, image));
1508 index = g_hash_table_size (cfg->image_hash);
1509 g_hash_table_insert (cfg->image_hash, image, GUINT_TO_POINTER (index + 1));
1510 g_ptr_array_add (cfg->image_table, image);
1516 find_typespec_for_class (MonoAotCompile *acfg, MonoClass *klass)
1519 MonoClass *k = NULL;
1521 /* FIXME: Search referenced images as well */
1522 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
1523 k = mono_class_get_full (acfg->image, MONO_TOKEN_TYPE_SPEC | (i + 1), NULL);
1528 if (i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows)
1529 return MONO_TOKEN_TYPE_SPEC | (i + 1);
1535 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf);
1540 * Encode a reference to KLASS. We use our home-grown encoding instead of the
1541 * standard metadata encoding.
1544 encode_klass_ref (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf)
1548 if (klass->generic_class) {
1550 g_assert (klass->type_token);
1552 /* Find a typespec for a class if possible */
1553 token = find_typespec_for_class (acfg, klass);
1555 encode_value (token, p, &p);
1556 encode_value (get_image_index (acfg, acfg->image), p, &p);
1558 MonoClass *gclass = klass->generic_class->container_class;
1559 MonoGenericInst *inst = klass->generic_class->context.class_inst;
1562 /* Encode it ourselves */
1564 encode_value (MONO_TOKEN_TYPE_SPEC, p, &p);
1565 encode_value (MONO_TYPE_GENERICINST, p, &p);
1566 encode_klass_ref (acfg, gclass, p, &p);
1567 encode_value (inst->type_argc, p, &p);
1568 for (i = 0; i < inst->type_argc; ++i)
1569 encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
1571 } else if (klass->type_token) {
1572 g_assert (mono_metadata_token_code (klass->type_token) == MONO_TOKEN_TYPE_DEF);
1573 encode_value (klass->type_token - MONO_TOKEN_TYPE_DEF, p, &p);
1574 encode_value (get_image_index (acfg, klass->image), p, &p);
1575 } else if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) {
1576 MonoGenericContainer *container = mono_type_get_generic_param_owner (&klass->byval_arg);
1577 g_assert (container);
1580 encode_value (MONO_TOKEN_TYPE_SPEC, p, &p);
1581 encode_value (klass->byval_arg.type, p, &p);
1583 encode_value (mono_type_get_generic_param_num (&klass->byval_arg), p, &p);
1585 encode_value (container->is_method, p, &p);
1586 if (container->is_method)
1587 encode_method_ref (acfg, container->owner.method, p, &p);
1589 encode_klass_ref (acfg, container->owner.klass, p, &p);
1592 g_assert (klass->rank > 0);
1593 encode_value (MONO_TOKEN_TYPE_DEF, p, &p);
1594 encode_value (get_image_index (acfg, klass->image), p, &p);
1595 encode_value (klass->rank, p, &p);
1596 encode_klass_ref (acfg, klass->element_class, p, &p);
1602 encode_field_info (MonoAotCompile *cfg, MonoClassField *field, guint8 *buf, guint8 **endbuf)
1604 guint32 token = mono_get_field_token (field);
1607 encode_klass_ref (cfg, field->parent, p, &p);
1608 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_FIELD_DEF);
1609 encode_value (token - MONO_TOKEN_FIELD_DEF, p, &p);
1614 encode_generic_context (MonoAotCompile *acfg, MonoGenericContext *context, guint8 *buf, guint8 **endbuf)
1618 MonoGenericInst *inst;
1620 /* Encode the context */
1621 inst = context->class_inst;
1622 encode_value (inst ? 1 : 0, p, &p);
1624 encode_value (inst->type_argc, p, &p);
1625 for (i = 0; i < inst->type_argc; ++i)
1626 encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
1628 inst = context->method_inst;
1629 encode_value (inst ? 1 : 0, p, &p);
1631 encode_value (inst->type_argc, p, &p);
1632 for (i = 0; i < inst->type_argc; ++i)
1633 encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
1639 #define MAX_IMAGE_INDEX 250
1642 encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf)
1644 guint32 image_index = get_image_index (acfg, method->klass->image);
1645 guint32 token = method->token;
1646 MonoJumpInfoToken *ji;
1651 * The encoding for most methods is as follows:
1652 * - image index encoded as a leb128
1653 * - token index encoded as a leb128
1654 * Values of image index >= MONO_AOT_METHODREF_MIN are used to mark additional
1655 * types of method encodings.
1658 g_assert (image_index < MONO_AOT_METHODREF_MIN);
1660 /* Mark methods which can't use aot trampolines because they need the further
1661 * processing in mono_magic_trampoline () which requires a MonoMethod*.
1663 if ((method->is_generic && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) ||
1664 (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED))
1665 encode_value ((MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE << 24), p, &p);
1668 * Some wrapper methods are shared using their signature, encode their
1669 * stringified signature instead.
1670 * FIXME: Optimize disk usage
1673 if (method->wrapper_type) {
1674 if (method->wrapper_type == MONO_WRAPPER_RUNTIME_INVOKE) {
1675 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1676 if (strcmp (method->name, "runtime_invoke_dynamic")) {
1677 name = mono_aot_wrapper_name (method);
1678 } else if (mono_marshal_method_from_wrapper (method) != method) {
1679 /* Direct wrapper, encode it normally */
1681 name = g_strdup_printf ("(wrapper runtime-invoke):%s (%s)", method->name, tmpsig);
1684 } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
1685 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1686 name = g_strdup_printf ("(wrapper delegate-invoke):%s (%s)", method->name, tmpsig);
1688 } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_BEGIN_INVOKE) {
1689 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1690 name = g_strdup_printf ("(wrapper delegate-begin-invoke):%s (%s)", method->name, tmpsig);
1692 } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_END_INVOKE) {
1693 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1694 name = g_strdup_printf ("(wrapper delegate-end-invoke):%s (%s)", method->name, tmpsig);
1700 encode_value ((MONO_AOT_METHODREF_WRAPPER_NAME << 24), p, &p);
1701 strcpy ((char*)p, name);
1702 p += strlen (name) + 1;
1704 } else if (method->wrapper_type) {
1705 encode_value ((MONO_AOT_METHODREF_WRAPPER << 24), p, &p);
1707 encode_value (method->wrapper_type, p, &p);
1709 switch (method->wrapper_type) {
1710 case MONO_WRAPPER_REMOTING_INVOKE:
1711 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
1712 case MONO_WRAPPER_XDOMAIN_INVOKE: {
1715 m = mono_marshal_method_from_wrapper (method);
1717 encode_method_ref (acfg, m, p, &p);
1720 case MONO_WRAPPER_PROXY_ISINST:
1721 case MONO_WRAPPER_LDFLD:
1722 case MONO_WRAPPER_LDFLDA:
1723 case MONO_WRAPPER_STFLD:
1724 case MONO_WRAPPER_ISINST: {
1725 MonoClass *proxy_class = mono_marshal_get_wrapper_info (method);
1726 encode_klass_ref (acfg, proxy_class, p, &p);
1729 case MONO_WRAPPER_LDFLD_REMOTE:
1730 case MONO_WRAPPER_STFLD_REMOTE:
1732 case MONO_WRAPPER_ALLOC: {
1733 AllocatorWrapperInfo *info = mono_marshal_get_wrapper_info (method);
1735 g_assert (info->alloc_type != -1);
1736 encode_value (info->alloc_type, p, &p);
1739 case MONO_WRAPPER_WRITE_BARRIER:
1741 case MONO_WRAPPER_STELEMREF:
1743 case MONO_WRAPPER_UNKNOWN:
1744 if (strcmp (method->name, "FastMonitorEnter") == 0)
1745 encode_value (MONO_AOT_WRAPPER_MONO_ENTER, p, &p);
1746 else if (strcmp (method->name, "FastMonitorExit") == 0)
1747 encode_value (MONO_AOT_WRAPPER_MONO_EXIT, p, &p);
1749 g_assert_not_reached ();
1751 case MONO_WRAPPER_SYNCHRONIZED:
1752 case MONO_WRAPPER_MANAGED_TO_NATIVE:
1753 case MONO_WRAPPER_RUNTIME_INVOKE: {
1756 m = mono_marshal_method_from_wrapper (method);
1758 g_assert (m != method);
1759 encode_method_ref (acfg, m, p, &p);
1762 case MONO_WRAPPER_MANAGED_TO_MANAGED:
1763 if (!strcmp (method->name, "ElementAddr")) {
1764 ElementAddrWrapperInfo *info = mono_marshal_get_wrapper_info (method);
1767 encode_value (MONO_AOT_WRAPPER_ELEMENT_ADDR, p, &p);
1768 encode_value (info->rank, p, &p);
1769 encode_value (info->elem_size, p, &p);
1771 g_assert_not_reached ();
1775 g_assert_not_reached ();
1777 } else if (mono_method_signature (method)->is_inflated) {
1779 * This is a generic method, find the original token which referenced it and
1781 * Obtain the token from information recorded by the JIT.
1783 ji = g_hash_table_lookup (acfg->token_info_hash, method);
1785 image_index = get_image_index (acfg, ji->image);
1786 g_assert (image_index < MAX_IMAGE_INDEX);
1789 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
1790 encode_value (image_index, p, &p);
1791 encode_value (token, p, &p);
1793 MonoMethod *declaring;
1794 MonoGenericContext *context = mono_method_get_context (method);
1796 g_assert (method->is_inflated);
1797 declaring = ((MonoMethodInflated*)method)->declaring;
1800 * This might be a non-generic method of a generic instance, which
1801 * doesn't have a token since the reference is generated by the JIT
1802 * like Nullable:Box/Unbox, or by generic sharing.
1805 encode_value ((MONO_AOT_METHODREF_GINST << 24), p, &p);
1806 /* Encode the klass */
1807 encode_klass_ref (acfg, method->klass, p, &p);
1808 /* Encode the method */
1809 image_index = get_image_index (acfg, method->klass->image);
1810 g_assert (image_index < MAX_IMAGE_INDEX);
1811 g_assert (declaring->token);
1812 token = declaring->token;
1813 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
1814 encode_value (image_index, p, &p);
1815 encode_value (token, p, &p);
1816 encode_generic_context (acfg, context, p, &p);
1818 } else if (token == 0) {
1819 /* This might be a method of a constructed type like int[,].Set */
1820 /* Obtain the token from information recorded by the JIT */
1821 ji = g_hash_table_lookup (acfg->token_info_hash, method);
1823 image_index = get_image_index (acfg, ji->image);
1824 g_assert (image_index < MAX_IMAGE_INDEX);
1827 encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
1828 encode_value (image_index, p, &p);
1829 encode_value (token, p, &p);
1832 g_assert (method->klass->rank);
1834 /* Encode directly */
1835 encode_value ((MONO_AOT_METHODREF_ARRAY << 24), p, &p);
1836 encode_klass_ref (acfg, method->klass, p, &p);
1837 if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank)
1838 encode_value (0, p, &p);
1839 else if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank * 2)
1840 encode_value (1, p, &p);
1841 else if (!strcmp (method->name, "Get"))
1842 encode_value (2, p, &p);
1843 else if (!strcmp (method->name, "Address"))
1844 encode_value (3, p, &p);
1845 else if (!strcmp (method->name, "Set"))
1846 encode_value (4, p, &p);
1848 g_assert_not_reached ();
1851 g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
1852 encode_value ((image_index << 24) | mono_metadata_token_index (token), p, &p);
1858 compare_patches (gconstpointer a, gconstpointer b)
1862 i = (*(MonoJumpInfo**)a)->ip.i;
1863 j = (*(MonoJumpInfo**)b)->ip.i;
1874 static G_GNUC_UNUSED char*
1875 patch_to_string (MonoJumpInfo *patch_info)
1879 str = g_string_new ("");
1881 g_string_append_printf (str, "%s(", get_patch_name (patch_info->type));
1883 switch (patch_info->type) {
1884 case MONO_PATCH_INFO_VTABLE:
1885 mono_type_get_desc (str, &patch_info->data.klass->byval_arg, TRUE);
1890 g_string_append_printf (str, ")");
1891 return g_string_free (str, FALSE);
1897 * Return whenever PATCH_INFO refers to a direct call, and thus requires a
1900 static inline gboolean
1901 is_plt_patch (MonoJumpInfo *patch_info)
1903 switch (patch_info->type) {
1904 case MONO_PATCH_INFO_METHOD:
1905 case MONO_PATCH_INFO_INTERNAL_METHOD:
1906 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
1907 case MONO_PATCH_INFO_ICALL_ADDR:
1908 case MONO_PATCH_INFO_CLASS_INIT:
1909 case MONO_PATCH_INFO_RGCTX_FETCH:
1910 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
1911 case MONO_PATCH_INFO_MONITOR_ENTER:
1912 case MONO_PATCH_INFO_MONITOR_EXIT:
1913 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
1923 * Return the symbol identifying the plt entry PLT_OFFSET.
1926 get_plt_symbol (MonoAotCompile *acfg, int plt_offset, MonoJumpInfo *patch_info)
1930 * The Apple linker reorganizes object files, so it doesn't like branches to local
1931 * labels, since those have no relocations.
1933 return g_strdup_printf ("%sp_%d", acfg->llvm_label_prefix, plt_offset);
1935 return g_strdup_printf ("%s%sp_%d", acfg->llvm_label_prefix, acfg->temp_prefix, plt_offset);
1942 * Return a PLT entry which belongs to the method identified by PATCH_INFO.
1944 static MonoPltEntry*
1945 get_plt_entry (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
1949 if (!is_plt_patch (patch_info))
1952 res = g_hash_table_lookup (acfg->patch_to_plt_entry, patch_info);
1954 // FIXME: This breaks the calculation of final_got_size
1955 if (!acfg->llvm && patch_info->type == MONO_PATCH_INFO_METHOD && (patch_info->data.method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)) {
1957 * Allocate a separate PLT slot for each such patch, since some plt
1958 * entries will refer to the method itself, and some will refer to the
1965 MonoJumpInfo *new_ji;
1967 g_assert (!acfg->final_got_size);
1969 new_ji = mono_patch_info_dup_mp (acfg->mempool, patch_info);
1971 res = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoPltEntry));
1972 res->plt_offset = acfg->plt_offset;
1974 res->symbol = get_plt_symbol (acfg, res->plt_offset, patch_info);
1976 g_hash_table_insert (acfg->patch_to_plt_entry, new_ji, res);
1978 g_hash_table_insert (acfg->plt_offset_to_entry, GUINT_TO_POINTER (res->plt_offset), res);
1980 acfg->plt_offset ++;
1989 * Returns the offset of the GOT slot where the runtime object resulting from resolving
1990 * JI could be found if it exists, otherwise allocates a new one.
1993 get_got_offset (MonoAotCompile *acfg, MonoJumpInfo *ji)
1997 got_offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_got_offset_by_type [ji->type], ji));
1999 return got_offset - 1;
2001 got_offset = acfg->got_offset;
2002 acfg->got_offset ++;
2004 if (acfg->final_got_size)
2005 g_assert (got_offset < acfg->final_got_size);
2007 acfg->stats.got_slots ++;
2008 acfg->stats.got_slot_types [ji->type] ++;
2010 g_hash_table_insert (acfg->patch_to_got_offset, ji, GUINT_TO_POINTER (got_offset + 1));
2011 g_hash_table_insert (acfg->patch_to_got_offset_by_type [ji->type], ji, GUINT_TO_POINTER (got_offset + 1));
2012 g_ptr_array_add (acfg->got_patches, ji);
2017 /* Add a method to the list of methods which need to be emitted */
2019 add_method_with_index (MonoAotCompile *acfg, MonoMethod *method, int index, gboolean extra)
2022 if (!g_hash_table_lookup (acfg->method_indexes, method)) {
2023 g_ptr_array_add (acfg->methods, method);
2024 g_hash_table_insert (acfg->method_indexes, method, GUINT_TO_POINTER (index + 1));
2025 acfg->nmethods = acfg->methods->len + 1;
2028 if (method->wrapper_type || extra)
2029 g_ptr_array_add (acfg->extra_methods, method);
2033 get_method_index (MonoAotCompile *acfg, MonoMethod *method)
2035 int index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
2043 add_method_full (MonoAotCompile *acfg, MonoMethod *method, gboolean extra, int depth)
2047 index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
2051 index = acfg->method_index;
2052 add_method_with_index (acfg, method, index, extra);
2054 /* FIXME: Fix quadratic behavior */
2055 acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (index));
2057 g_hash_table_insert (acfg->method_depth, method, GUINT_TO_POINTER (depth));
2059 acfg->method_index ++;
2065 add_method (MonoAotCompile *acfg, MonoMethod *method)
2067 return add_method_full (acfg, method, FALSE, 0);
2071 add_extra_method (MonoAotCompile *acfg, MonoMethod *method)
2073 add_method_full (acfg, method, TRUE, 0);
2077 add_extra_method_with_depth (MonoAotCompile *acfg, MonoMethod *method, int depth)
2079 add_method_full (acfg, method, TRUE, depth);
2083 add_jit_icall_wrapper (gpointer key, gpointer value, gpointer user_data)
2085 MonoAotCompile *acfg = user_data;
2086 MonoJitICallInfo *callinfo = value;
2087 MonoMethod *wrapper;
2093 name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
2094 wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_for_pending_exc);
2097 add_method (acfg, wrapper);
2101 get_runtime_invoke_sig (MonoMethodSignature *sig)
2103 MonoMethodBuilder *mb;
2106 mb = mono_mb_new (mono_defaults.object_class, "FOO", MONO_WRAPPER_NONE);
2107 m = mono_mb_create_method (mb, sig, 16);
2108 return mono_marshal_get_runtime_invoke (m, FALSE);
2112 can_marshal_struct (MonoClass *klass)
2114 MonoClassField *field;
2115 gboolean can_marshal = TRUE;
2116 gpointer iter = NULL;
2118 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2121 /* Only allow a few field types to avoid asserts in the marshalling code */
2122 while ((field = mono_class_get_fields (klass, &iter))) {
2123 if ((field->type->attrs & FIELD_ATTRIBUTE_STATIC))
2126 switch (field->type->type) {
2131 case MONO_TYPE_BOOLEAN:
2134 case MONO_TYPE_CHAR:
2142 case MONO_TYPE_STRING:
2144 case MONO_TYPE_VALUETYPE:
2145 if (!mono_class_from_mono_type (field->type)->enumtype && !can_marshal_struct (mono_class_from_mono_type (field->type)))
2146 can_marshal = FALSE;
2149 can_marshal = FALSE;
2155 /* Its hard to compute whenever these can be marshalled or not */
2156 if (!strcmp (klass->name_space, "System.Net.NetworkInformation.MacOsStructs"))
2163 add_wrappers (MonoAotCompile *acfg)
2165 MonoMethod *method, *m;
2167 MonoMethodSignature *sig, *csig;
2171 * FIXME: Instead of AOTing all the wrappers, it might be better to redesign them
2172 * so there is only one wrapper of a given type, or inlining their contents into their
2177 * FIXME: This depends on the fact that different wrappers have different
2181 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2183 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2184 gboolean skip = FALSE;
2186 method = mono_get_method (acfg->image, token, NULL);
2188 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2189 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
2190 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
2193 if (method->is_generic || method->klass->generic_container)
2196 /* Skip methods which can not be handled by get_runtime_invoke () */
2197 sig = mono_method_signature (method);
2198 if ((sig->ret->type == MONO_TYPE_PTR) ||
2199 (sig->ret->type == MONO_TYPE_TYPEDBYREF))
2202 for (j = 0; j < sig->param_count; j++) {
2203 if (sig->params [j]->type == MONO_TYPE_TYPEDBYREF)
2207 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
2208 if (!method->klass->contextbound) {
2209 MonoDynCallInfo *info = mono_arch_dyn_call_prepare (sig);
2210 gboolean has_nullable = FALSE;
2212 for (j = 0; j < sig->param_count; j++) {
2213 if (sig->params [j]->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (sig->params [j])))
2214 has_nullable = TRUE;
2217 if (info && !has_nullable) {
2218 /* Supported by the dynamic runtime-invoke wrapper */
2226 //printf ("%s\n", mono_method_full_name (method, TRUE));
2227 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
2231 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
2232 #ifdef MONO_ARCH_HAVE_TLS_GET
2233 MonoMethodDesc *desc;
2234 MonoMethod *orig_method;
2238 /* Runtime invoke wrappers */
2240 /* void runtime-invoke () [.cctor] */
2241 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2242 csig->ret = &mono_defaults.void_class->byval_arg;
2243 add_method (acfg, get_runtime_invoke_sig (csig));
2245 /* void runtime-invoke () [Finalize] */
2246 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2248 csig->ret = &mono_defaults.void_class->byval_arg;
2249 add_method (acfg, get_runtime_invoke_sig (csig));
2251 /* void runtime-invoke (string) [exception ctor] */
2252 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2254 csig->ret = &mono_defaults.void_class->byval_arg;
2255 csig->params [0] = &mono_defaults.string_class->byval_arg;
2256 add_method (acfg, get_runtime_invoke_sig (csig));
2258 /* void runtime-invoke (string, string) [exception ctor] */
2259 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2261 csig->ret = &mono_defaults.void_class->byval_arg;
2262 csig->params [0] = &mono_defaults.string_class->byval_arg;
2263 csig->params [1] = &mono_defaults.string_class->byval_arg;
2264 add_method (acfg, get_runtime_invoke_sig (csig));
2266 /* string runtime-invoke () [Exception.ToString ()] */
2267 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2269 csig->ret = &mono_defaults.string_class->byval_arg;
2270 add_method (acfg, get_runtime_invoke_sig (csig));
2272 /* void runtime-invoke (string, Exception) [exception ctor] */
2273 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2275 csig->ret = &mono_defaults.void_class->byval_arg;
2276 csig->params [0] = &mono_defaults.string_class->byval_arg;
2277 csig->params [1] = &mono_defaults.exception_class->byval_arg;
2278 add_method (acfg, get_runtime_invoke_sig (csig));
2280 /* Assembly runtime-invoke (string, bool) [DoAssemblyResolve] */
2281 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2283 csig->ret = &(mono_class_from_name (
2284 mono_defaults.corlib, "System.Reflection", "Assembly"))->byval_arg;
2285 csig->params [0] = &mono_defaults.string_class->byval_arg;
2286 csig->params [1] = &mono_defaults.boolean_class->byval_arg;
2287 add_method (acfg, get_runtime_invoke_sig (csig));
2289 /* runtime-invoke used by finalizers */
2290 add_method (acfg, mono_marshal_get_runtime_invoke (mono_class_get_method_from_name_flags (mono_defaults.object_class, "Finalize", 0, 0), TRUE));
2292 /* This is used by mono_runtime_capture_context () */
2293 method = mono_get_context_capture_method ();
2295 add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
2297 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
2298 add_method (acfg, mono_marshal_get_runtime_invoke_dynamic ());
2301 /* JIT icall wrappers */
2302 /* FIXME: locking */
2303 g_hash_table_foreach (mono_get_jit_icall_info (), add_jit_icall_wrapper, acfg);
2306 add_method (acfg, mono_marshal_get_stelemref ());
2308 #ifdef MONO_ARCH_HAVE_TLS_GET
2309 /* Managed Allocators */
2310 nallocators = mono_gc_get_managed_allocator_types ();
2311 for (i = 0; i < nallocators; ++i) {
2312 m = mono_gc_get_managed_allocator_by_type (i);
2314 add_method (acfg, m);
2317 /* Monitor Enter/Exit */
2318 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
2319 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
2320 g_assert (orig_method);
2321 mono_method_desc_free (desc);
2322 method = mono_monitor_get_fast_path (orig_method);
2324 add_method (acfg, method);
2326 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
2327 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
2328 g_assert (orig_method);
2329 mono_method_desc_free (desc);
2330 method = mono_monitor_get_fast_path (orig_method);
2332 add_method (acfg, method);
2337 * remoting-invoke-with-check wrappers are very frequent, so avoid emitting them,
2338 * we use the original method instead at runtime.
2339 * Since full-aot doesn't support remoting, this is not a problem.
2342 /* remoting-invoke wrappers */
2343 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2344 MonoMethodSignature *sig;
2346 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2347 method = mono_get_method (acfg->image, token, NULL);
2349 sig = mono_method_signature (method);
2351 if (sig->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class)) {
2352 m = mono_marshal_get_remoting_invoke_with_check (method);
2354 add_method (acfg, m);
2359 /* delegate-invoke wrappers */
2360 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
2363 token = MONO_TOKEN_TYPE_DEF | (i + 1);
2364 klass = mono_class_get (acfg->image, token);
2366 if (klass->delegate && klass != mono_defaults.delegate_class && klass != mono_defaults.multicastdelegate_class && !klass->generic_container) {
2367 method = mono_get_delegate_invoke (klass);
2369 m = mono_marshal_get_delegate_invoke (method, NULL);
2371 add_method (acfg, m);
2373 method = mono_class_get_method_from_name_flags (klass, "BeginInvoke", -1, 0);
2374 add_method (acfg, mono_marshal_get_delegate_begin_invoke (method));
2376 method = mono_class_get_method_from_name_flags (klass, "EndInvoke", -1, 0);
2377 add_method (acfg, mono_marshal_get_delegate_end_invoke (method));
2381 /* Synchronized wrappers */
2382 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2383 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2384 method = mono_get_method (acfg->image, token, NULL);
2386 if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED && !method->is_generic)
2387 add_method (acfg, mono_marshal_get_synchronized_wrapper (method));
2390 /* pinvoke wrappers */
2391 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2393 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2395 method = mono_get_method (acfg->image, token, NULL);
2397 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2398 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
2399 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
2403 /* native-to-managed wrappers */
2404 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
2406 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
2407 MonoCustomAttrInfo *cattr;
2410 method = mono_get_method (acfg->image, token, NULL);
2413 * Only generate native-to-managed wrappers for methods which have an
2414 * attribute named MonoPInvokeCallbackAttribute. We search for the attribute by
2415 * name to avoid defining a new assembly to contain it.
2417 cattr = mono_custom_attrs_from_method (method);
2420 for (j = 0; j < cattr->num_attrs; ++j)
2421 if (cattr->attrs [j].ctor && !strcmp (cattr->attrs [j].ctor->klass->name, "MonoPInvokeCallbackAttribute"))
2423 if (j < cattr->num_attrs) {
2424 MonoCustomAttrEntry *e = &cattr->attrs [j];
2425 MonoMethodSignature *sig = mono_method_signature (e->ctor);
2426 const char *p = (const char*)e->data;
2432 g_assert (method->flags & METHOD_ATTRIBUTE_STATIC);
2434 g_assert (sig->param_count == 1);
2435 g_assert (sig->params [0]->type == MONO_TYPE_CLASS && !strcmp (mono_class_from_mono_type (sig->params [0])->name, "Type"));
2438 * Decode the cattr manually since we can't create objects
2439 * during aot compilation.
2445 /* From load_cattr_value () in reflection.c */
2446 slen = mono_metadata_decode_value (p, &p);
2447 n = g_memdup (p, slen + 1);
2449 t = mono_reflection_type_from_name (n, acfg->image);
2453 klass = mono_class_from_mono_type (t);
2454 g_assert (klass->parent == mono_defaults.multicastdelegate_class);
2456 add_method (acfg, mono_marshal_get_managed_wrapper (method, klass, 0));
2460 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2461 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
2462 add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
2466 /* StructureToPtr/PtrToStructure wrappers */
2467 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
2470 token = MONO_TOKEN_TYPE_DEF | (i + 1);
2471 klass = mono_class_get (acfg->image, token);
2473 if (klass->valuetype && !klass->generic_container && can_marshal_struct (klass)) {
2474 add_method (acfg, mono_marshal_get_struct_to_ptr (klass));
2475 add_method (acfg, mono_marshal_get_ptr_to_struct (klass));
2481 has_type_vars (MonoClass *klass)
2483 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
2486 return has_type_vars (klass->element_class);
2487 if (klass->generic_class) {
2488 MonoGenericContext *context = &klass->generic_class->context;
2489 if (context->class_inst) {
2492 for (i = 0; i < context->class_inst->type_argc; ++i)
2493 if (has_type_vars (mono_class_from_mono_type (context->class_inst->type_argv [i])))
2501 method_has_type_vars (MonoMethod *method)
2503 if (has_type_vars (method->klass))
2506 if (method->is_inflated) {
2507 MonoGenericContext *context = mono_method_get_context (method);
2508 if (context->method_inst) {
2511 for (i = 0; i < context->method_inst->type_argc; ++i)
2512 if (has_type_vars (mono_class_from_mono_type (context->method_inst->type_argv [i])))
2519 static void add_generic_class_with_depth (MonoAotCompile *acfg, MonoClass *klass, int depth);
2522 add_generic_class (MonoAotCompile *acfg, MonoClass *klass)
2524 add_generic_class_with_depth (acfg, klass, 0);
2528 * add_generic_class:
2530 * Add all methods of a generic class.
2533 add_generic_class_with_depth (MonoAotCompile *acfg, MonoClass *klass, int depth)
2538 mono_class_init (klass);
2540 if (klass->generic_class && klass->generic_class->context.class_inst->is_open)
2543 if (has_type_vars (klass))
2546 if (!klass->generic_class && !klass->rank)
2550 while ((method = mono_class_get_methods (klass, &iter))) {
2551 if (mono_method_is_generic_sharable_impl_full (method, FALSE, FALSE))
2555 if (method->is_generic)
2560 * FIXME: Instances which are referenced by these methods are not added,
2561 * for example Array.Resize<int> for List<int>.Add ().
2563 add_extra_method_with_depth (acfg, method, depth);
2566 if (klass->delegate) {
2567 method = mono_get_delegate_invoke (klass);
2569 method = mono_marshal_get_delegate_invoke (method, NULL);
2571 add_method (acfg, method);
2575 * For ICollection<T>, add instances of the helper methods
2576 * in Array, since a T[] could be cast to ICollection<T>.
2578 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") &&
2579 (!strcmp(klass->name, "ICollection`1") || !strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IList`1") || !strcmp (klass->name, "IEnumerator`1"))) {
2580 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
2581 MonoClass *array_class = mono_bounded_array_class_get (tclass, 1, FALSE);
2585 if (!strcmp (klass->name, "IEnumerator`1"))
2586 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, "IEnumerable`1");
2588 name_prefix = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
2590 /* Add the T[]/InternalEnumerator class */
2591 if (!strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IEnumerator`1")) {
2595 while ((nclass = mono_class_get_nested_types (array_class->parent, &iter))) {
2596 if (!strcmp (nclass->name, "InternalEnumerator`1"))
2600 nclass = mono_class_inflate_generic_class (nclass, mono_generic_class_get_context (klass->generic_class));
2601 add_generic_class (acfg, nclass);
2605 while ((method = mono_class_get_methods (array_class, &iter))) {
2606 if (strstr (method->name, name_prefix)) {
2607 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
2608 add_extra_method_with_depth (acfg, m, depth);
2612 g_free (name_prefix);
2615 /* Add an instance of GenericComparer<T> which is created dynamically by Comparer<T> */
2616 if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") && !strcmp (klass->name, "Comparer`1")) {
2617 MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
2618 MonoClass *icomparable, *gcomparer;
2619 MonoGenericContext ctx;
2620 MonoType *args [16];
2622 memset (&ctx, 0, sizeof (ctx));
2624 icomparable = mono_class_from_name (mono_defaults.corlib, "System", "IComparable`1");
2625 g_assert (icomparable);
2626 args [0] = &tclass->byval_arg;
2627 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2629 if (mono_class_is_assignable_from (mono_class_inflate_generic_class (icomparable, &ctx), tclass)) {
2630 gcomparer = mono_class_from_name (mono_defaults.corlib, "System.Collections.Generic", "GenericComparer`1");
2631 g_assert (gcomparer);
2632 add_generic_class (acfg, mono_class_inflate_generic_class (gcomparer, &ctx));
2638 add_instances_of (MonoAotCompile *acfg, MonoClass *klass, MonoType **insts, int ninsts)
2641 MonoGenericContext ctx;
2642 MonoType *args [16];
2644 memset (&ctx, 0, sizeof (ctx));
2646 for (i = 0; i < ninsts; ++i) {
2647 args [0] = insts [i];
2648 ctx.class_inst = mono_metadata_get_generic_inst (1, args);
2649 add_generic_class (acfg, mono_class_inflate_generic_class (klass, &ctx));
2654 * add_generic_instances:
2656 * Add instances referenced by the METHODSPEC/TYPESPEC table.
2659 add_generic_instances (MonoAotCompile *acfg)
2664 MonoMethodHeader *header;
2665 MonoMethodSignature *sig;
2666 MonoGenericContext *context;
2668 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHODSPEC].rows; ++i) {
2669 token = MONO_TOKEN_METHOD_SPEC | (i + 1);
2670 method = mono_get_method (acfg->image, token, NULL);
2672 if (method->klass->image != acfg->image)
2675 context = mono_method_get_context (method);
2677 if (context && ((context->class_inst && context->class_inst->is_open)))
2681 * For open methods, create an instantiation which can be passed to the JIT.
2682 * FIXME: Handle class_inst as well.
2684 if (context && context->method_inst && context->method_inst->is_open) {
2685 MonoGenericContext shared_context;
2686 MonoGenericInst *inst;
2687 MonoType **type_argv;
2689 MonoMethod *declaring_method;
2690 gboolean supported = TRUE;
2692 /* Check that the context doesn't contain open constructed types */
2693 if (context->class_inst) {
2694 inst = context->class_inst;
2695 for (i = 0; i < inst->type_argc; ++i) {
2696 if (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR)
2698 if (mono_class_is_open_constructed_type (inst->type_argv [i]))
2702 if (context->method_inst) {
2703 inst = context->method_inst;
2704 for (i = 0; i < inst->type_argc; ++i) {
2705 if (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR)
2707 if (mono_class_is_open_constructed_type (inst->type_argv [i]))
2715 memset (&shared_context, 0, sizeof (MonoGenericContext));
2717 inst = context->class_inst;
2719 type_argv = g_new0 (MonoType*, inst->type_argc);
2720 for (i = 0; i < inst->type_argc; ++i) {
2721 if (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR)
2722 type_argv [i] = &mono_defaults.object_class->byval_arg;
2724 type_argv [i] = inst->type_argv [i];
2727 shared_context.class_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
2731 inst = context->method_inst;
2733 type_argv = g_new0 (MonoType*, inst->type_argc);
2734 for (i = 0; i < inst->type_argc; ++i) {
2735 if (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR)
2736 type_argv [i] = &mono_defaults.object_class->byval_arg;
2738 type_argv [i] = inst->type_argv [i];
2741 shared_context.method_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
2745 if (method->is_generic || method->klass->generic_container)
2746 declaring_method = method;
2748 declaring_method = mono_method_get_declaring_generic_method (method);
2750 method = mono_class_inflate_generic_method (declaring_method, &shared_context);
2754 * If the method is fully sharable, it was already added in place of its
2755 * generic definition.
2757 if (mono_method_is_generic_sharable_impl_full (method, FALSE, FALSE))
2761 * FIXME: Partially shared methods are not shared here, so we end up with
2762 * many identical methods.
2764 add_extra_method (acfg, method);
2767 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
2770 token = MONO_TOKEN_TYPE_SPEC | (i + 1);
2772 klass = mono_class_get (acfg->image, token);
2773 if (!klass || klass->rank)
2776 add_generic_class (acfg, klass);
2779 /* Add types of args/locals */
2780 for (i = 0; i < acfg->methods->len; ++i) {
2783 method = g_ptr_array_index (acfg->methods, i);
2785 sig = mono_method_signature (method);
2788 for (j = 0; j < sig->param_count; ++j)
2789 if (sig->params [j]->type == MONO_TYPE_GENERICINST)
2790 add_generic_class (acfg, mono_class_from_mono_type (sig->params [j]));
2793 header = mono_method_get_header (method);
2796 for (j = 0; j < header->num_locals; ++j)
2797 if (header->locals [j]->type == MONO_TYPE_GENERICINST)
2798 add_generic_class (acfg, mono_class_from_mono_type (header->locals [j]));
2802 if (acfg->image == mono_defaults.corlib) {
2804 MonoType *insts [256];
2807 insts [ninsts ++] = &mono_defaults.byte_class->byval_arg;
2808 insts [ninsts ++] = &mono_defaults.sbyte_class->byval_arg;
2809 insts [ninsts ++] = &mono_defaults.int16_class->byval_arg;
2810 insts [ninsts ++] = &mono_defaults.uint16_class->byval_arg;
2811 insts [ninsts ++] = &mono_defaults.int32_class->byval_arg;
2812 insts [ninsts ++] = &mono_defaults.uint32_class->byval_arg;
2813 insts [ninsts ++] = &mono_defaults.int64_class->byval_arg;
2814 insts [ninsts ++] = &mono_defaults.uint64_class->byval_arg;
2815 insts [ninsts ++] = &mono_defaults.single_class->byval_arg;
2816 insts [ninsts ++] = &mono_defaults.double_class->byval_arg;
2817 insts [ninsts ++] = &mono_defaults.char_class->byval_arg;
2818 insts [ninsts ++] = &mono_defaults.boolean_class->byval_arg;
2820 /* Add GenericComparer<T> instances for primitive types for Enum.ToString () */
2821 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericComparer`1");
2823 add_instances_of (acfg, klass, insts, ninsts);
2824 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "GenericEqualityComparer`1");
2826 add_instances_of (acfg, klass, insts, ninsts);
2828 /* Add instances of the array generic interfaces for primitive types */
2829 /* This will add instances of the InternalArray_ helper methods in Array too */
2830 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "ICollection`1");
2832 add_instances_of (acfg, klass, insts, ninsts);
2833 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "IList`1");
2835 add_instances_of (acfg, klass, insts, ninsts);
2836 klass = mono_class_from_name (acfg->image, "System.Collections.Generic", "IEnumerable`1");
2838 add_instances_of (acfg, klass, insts, ninsts);
2841 * Add a managed-to-native wrapper of Array.GetGenericValueImpl<object>, which is
2842 * used for all instances of GetGenericValueImpl by the AOT runtime.
2845 MonoGenericContext ctx;
2846 MonoType *args [16];
2847 MonoMethod *get_method;
2848 MonoClass *array_klass = mono_array_class_get (mono_defaults.object_class, 1)->parent;
2850 get_method = mono_class_get_method_from_name (array_klass, "GetGenericValueImpl", 2);
2853 memset (&ctx, 0, sizeof (ctx));
2854 args [0] = &mono_defaults.object_class->byval_arg;
2855 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
2856 add_extra_method (acfg, mono_marshal_get_native_wrapper (mono_class_inflate_generic_method (get_method, &ctx), TRUE, TRUE));
2863 * is_direct_callable:
2865 * Return whenever the method identified by JI is directly callable without
2866 * going through the PLT.
2869 is_direct_callable (MonoAotCompile *acfg, MonoMethod *method, MonoJumpInfo *patch_info)
2871 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
2872 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
2874 gboolean direct_callable = TRUE;
2876 if (direct_callable && !(!callee_cfg->has_got_slots && (callee_cfg->method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)))
2877 direct_callable = FALSE;
2878 if ((callee_cfg->method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) && (!method || method->wrapper_type != MONO_WRAPPER_SYNCHRONIZED))
2879 // FIXME: Maybe call the wrapper directly ?
2880 direct_callable = FALSE;
2882 if (direct_callable)
2891 * emit_and_reloc_code:
2893 * Emit the native code in CODE, handling relocations along the way. If GOT_ONLY
2894 * is true, calls are made through the GOT too. This is used for emitting trampolines
2895 * in full-aot mode, since calls made from trampolines couldn't go through the PLT,
2896 * since trampolines are needed to make PTL work.
2899 emit_and_reloc_code (MonoAotCompile *acfg, MonoMethod *method, guint8 *code, guint32 code_len, MonoJumpInfo *relocs, gboolean got_only)
2901 int i, pindex, start_index, method_index;
2903 MonoJumpInfo *patch_info;
2904 MonoMethodHeader *header;
2905 gboolean skip, direct_call;
2907 char direct_call_target [128];
2910 header = mono_method_get_header (method);
2912 method_index = get_method_index (acfg, method);
2915 /* Collect and sort relocations */
2916 patches = g_ptr_array_new ();
2917 for (patch_info = relocs; patch_info; patch_info = patch_info->next)
2918 g_ptr_array_add (patches, patch_info);
2919 g_ptr_array_sort (patches, compare_patches);
2922 for (i = 0; i < code_len; i++) {
2924 for (pindex = start_index; pindex < patches->len; ++pindex) {
2925 patch_info = g_ptr_array_index (patches, pindex);
2926 if (patch_info->ip.i >= i)
2930 #ifdef MONO_ARCH_AOT_SUPPORTED
2932 if (patch_info && (patch_info->ip.i == i) && (pindex < patches->len)) {
2933 start_index = pindex;
2935 switch (patch_info->type) {
2936 case MONO_PATCH_INFO_NONE:
2938 case MONO_PATCH_INFO_GOT_OFFSET: {
2941 arch_emit_got_offset (acfg, code + i, &code_size);
2944 patch_info->type = MONO_PATCH_INFO_NONE;
2949 * If this patch is a call, try emitting a direct call instead of
2950 * through a PLT entry. This is possible if the called method is in
2951 * the same assembly and requires no initialization.
2953 direct_call = FALSE;
2954 if ((patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == acfg->image)) {
2955 if (!got_only && is_direct_callable (acfg, method, patch_info)) {
2956 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
2957 //printf ("DIRECT: %s %s\n", method ? mono_method_full_name (method, TRUE) : "", mono_method_full_name (callee_cfg->method, TRUE));
2959 sprintf (direct_call_target, "%s", callee_cfg->asm_symbol);
2960 patch_info->type = MONO_PATCH_INFO_NONE;
2961 acfg->stats.direct_calls ++;
2964 acfg->stats.all_calls ++;
2967 if (!got_only && !direct_call) {
2968 MonoPltEntry *plt_entry = get_plt_entry (acfg, patch_info);
2970 /* This patch has a PLT entry, so we must emit a call to the PLT entry */
2972 sprintf (direct_call_target, "%s", plt_entry->symbol);
2974 /* Nullify the patch */
2975 patch_info->type = MONO_PATCH_INFO_NONE;
2982 arch_emit_direct_call (acfg, direct_call_target, &call_size);
2987 got_slot = get_got_offset (acfg, patch_info);
2989 arch_emit_got_access (acfg, code + i, got_slot, &code_size);
2996 #endif /* MONO_ARCH_AOT_SUPPORTED */
2999 /* Find next patch */
3001 for (pindex = start_index; pindex < patches->len; ++pindex) {
3002 patch_info = g_ptr_array_index (patches, pindex);
3003 if (patch_info->ip.i >= i)
3007 /* Try to emit multiple bytes at once */
3008 if (pindex < patches->len && patch_info->ip.i > i) {
3009 emit_bytes (acfg, code + i, patch_info->ip.i - i);
3010 i = patch_info->ip.i - 1;
3012 emit_bytes (acfg, code + i, 1);
3021 * Modify SYMBOL so it only includes characters permissible in symbols.
3024 sanitize_symbol (char *symbol)
3026 int i, len = strlen (symbol);
3028 for (i = 0; i < len; ++i)
3029 if (!isalnum (symbol [i]) && (symbol [i] != '_'))
3034 get_debug_sym (MonoMethod *method, const char *prefix, GHashTable *cache)
3036 char *name1, *name2, *cached;
3037 int i, j, len, count;
3039 name1 = mono_method_full_name (method, TRUE);
3040 len = strlen (name1);
3041 name2 = malloc (strlen (prefix) + len + 16);
3042 memcpy (name2, prefix, strlen (prefix));
3043 j = strlen (prefix);
3044 for (i = 0; i < len; ++i) {
3045 if (isalnum (name1 [i])) {
3046 name2 [j ++] = name1 [i];
3047 } else if (name1 [i] == ' ' && name1 [i + 1] == '(' && name1 [i + 2] == ')') {
3049 } else if (name1 [i] == ',' && name1 [i + 1] == ' ') {
3052 } else if (name1 [i] == '(' || name1 [i] == ')' || name1 [i] == '>') {
3061 while (g_hash_table_lookup (cache, name2)) {
3062 sprintf (name2 + j, "_%d", count);
3066 cached = g_strdup (name2);
3067 g_hash_table_insert (cache, cached, cached);
3073 emit_method_code (MonoAotCompile *acfg, MonoCompile *cfg)
3078 char *debug_sym = NULL;
3080 int func_alignment = AOT_FUNC_ALIGNMENT;
3081 MonoMethodHeader *header;
3083 method = cfg->orig_method;
3084 code = cfg->native_code;
3085 header = cfg->header;
3087 method_index = get_method_index (acfg, method);
3089 /* Make the labels local */
3090 sprintf (symbol, "%s", cfg->asm_symbol);
3092 emit_section_change (acfg, ".text", 0);
3093 emit_alignment (acfg, func_alignment);
3094 emit_label (acfg, symbol);
3096 if (acfg->aot_opts.write_symbols) {
3098 * Write a C style symbol for every method, this has two uses:
3099 * - it works on platforms where the dwarf debugging info is not
3101 * - it allows the setting of breakpoints of aot-ed methods.
3103 debug_sym = get_debug_sym (method, "", acfg->method_label_hash);
3105 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
3106 emit_local_symbol (acfg, debug_sym, symbol, TRUE);
3107 emit_label (acfg, debug_sym);
3110 if (cfg->verbose_level > 0)
3111 g_print ("Method %s emitted as %s\n", mono_method_full_name (method, TRUE), symbol);
3113 acfg->stats.code_size += cfg->code_len;
3115 acfg->cfgs [method_index]->got_offset = acfg->got_offset;
3117 emit_and_reloc_code (acfg, method, code, cfg->code_len, cfg->patch_info, FALSE);
3121 if (acfg->aot_opts.write_symbols) {
3122 emit_symbol_size (acfg, debug_sym, ".");
3126 sprintf (symbol, "%sme_%x", acfg->temp_prefix, method_index);
3127 emit_label (acfg, symbol);
3133 * Encode PATCH_INFO into its disk representation.
3136 encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info, guint8 *buf, guint8 **endbuf)
3140 switch (patch_info->type) {
3141 case MONO_PATCH_INFO_NONE:
3143 case MONO_PATCH_INFO_IMAGE:
3144 encode_value (get_image_index (acfg, patch_info->data.image), p, &p);
3146 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
3148 case MONO_PATCH_INFO_METHOD_REL:
3149 encode_value ((gint)patch_info->data.offset, p, &p);
3151 case MONO_PATCH_INFO_SWITCH: {
3152 gpointer *table = (gpointer *)patch_info->data.table->table;
3155 encode_value (patch_info->data.table->table_size, p, &p);
3156 for (k = 0; k < patch_info->data.table->table_size; k++)
3157 encode_value ((int)(gssize)table [k], p, &p);
3160 case MONO_PATCH_INFO_METHODCONST:
3161 case MONO_PATCH_INFO_METHOD:
3162 case MONO_PATCH_INFO_METHOD_JUMP:
3163 case MONO_PATCH_INFO_ICALL_ADDR:
3164 case MONO_PATCH_INFO_METHOD_RGCTX:
3165 encode_method_ref (acfg, patch_info->data.method, p, &p);
3167 case MONO_PATCH_INFO_INTERNAL_METHOD:
3168 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
3169 guint32 len = strlen (patch_info->data.name);
3171 encode_value (len, p, &p);
3173 memcpy (p, patch_info->data.name, len);
3178 case MONO_PATCH_INFO_LDSTR: {
3179 guint32 image_index = get_image_index (acfg, patch_info->data.token->image);
3180 guint32 token = patch_info->data.token->token;
3181 g_assert (mono_metadata_token_code (token) == MONO_TOKEN_STRING);
3182 encode_value (image_index, p, &p);
3183 encode_value (patch_info->data.token->token - MONO_TOKEN_STRING, p, &p);
3186 case MONO_PATCH_INFO_RVA:
3187 case MONO_PATCH_INFO_DECLSEC:
3188 case MONO_PATCH_INFO_LDTOKEN:
3189 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
3190 encode_value (get_image_index (acfg, patch_info->data.token->image), p, &p);
3191 encode_value (patch_info->data.token->token, p, &p);
3192 encode_value (patch_info->data.token->has_context, p, &p);
3193 if (patch_info->data.token->has_context)
3194 encode_generic_context (acfg, &patch_info->data.token->context, p, &p);
3196 case MONO_PATCH_INFO_EXC_NAME: {
3197 MonoClass *ex_class;
3200 mono_class_from_name (mono_defaults.exception_class->image,
3201 "System", patch_info->data.target);
3202 g_assert (ex_class);
3203 encode_klass_ref (acfg, ex_class, p, &p);
3206 case MONO_PATCH_INFO_R4:
3207 encode_value (*((guint32 *)patch_info->data.target), p, &p);
3209 case MONO_PATCH_INFO_R8:
3210 encode_value (((guint32 *)patch_info->data.target) [MINI_LS_WORD_IDX], p, &p);
3211 encode_value (((guint32 *)patch_info->data.target) [MINI_MS_WORD_IDX], p, &p);
3213 case MONO_PATCH_INFO_VTABLE:
3214 case MONO_PATCH_INFO_CLASS:
3215 case MONO_PATCH_INFO_IID:
3216 case MONO_PATCH_INFO_ADJUSTED_IID:
3217 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
3219 case MONO_PATCH_INFO_CLASS_INIT:
3220 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3221 encode_klass_ref (acfg, patch_info->data.klass, p, &p);
3223 case MONO_PATCH_INFO_FIELD:
3224 case MONO_PATCH_INFO_SFLDA:
3225 encode_field_info (acfg, patch_info->data.field, p, &p);
3227 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3229 case MONO_PATCH_INFO_RGCTX_FETCH: {
3230 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
3232 encode_method_ref (acfg, entry->method, p, &p);
3233 encode_value (entry->in_mrgctx, p, &p);
3234 encode_value (entry->info_type, p, &p);
3235 encode_value (entry->data->type, p, &p);
3236 encode_patch (acfg, entry->data, p, &p);
3239 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
3240 case MONO_PATCH_INFO_MONITOR_ENTER:
3241 case MONO_PATCH_INFO_MONITOR_EXIT:
3242 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3244 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
3245 encode_method_ref (acfg, patch_info->data.imt_tramp->method, p, &p);
3246 encode_value (patch_info->data.imt_tramp->vt_offset, p, &p);
3249 g_warning ("unable to handle jump info %d", patch_info->type);
3250 g_assert_not_reached ();
3257 encode_patch_list (MonoAotCompile *acfg, GPtrArray *patches, int n_patches, int first_got_offset, guint8 *buf, guint8 **endbuf)
3260 guint32 pindex, offset;
3261 MonoJumpInfo *patch_info;
3263 encode_value (n_patches, p, &p);
3265 for (pindex = 0; pindex < patches->len; ++pindex) {
3266 patch_info = g_ptr_array_index (patches, pindex);
3268 if (patch_info->type == MONO_PATCH_INFO_NONE || patch_info->type == MONO_PATCH_INFO_BB)
3272 offset = get_got_offset (acfg, patch_info);
3273 encode_value (offset, p, &p);
3280 emit_method_info (MonoAotCompile *acfg, MonoCompile *cfg)
3284 int pindex, buf_size, n_patches;
3287 MonoJumpInfo *patch_info;
3288 MonoMethodHeader *header;
3289 guint32 method_index;
3291 guint32 first_got_offset;
3293 method = cfg->orig_method;
3294 code = cfg->native_code;
3295 header = mono_method_get_header (method);
3297 method_index = get_method_index (acfg, method);
3299 /* Sort relocations */
3300 patches = g_ptr_array_new ();
3301 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next)
3302 g_ptr_array_add (patches, patch_info);
3303 g_ptr_array_sort (patches, compare_patches);
3305 first_got_offset = acfg->cfgs [method_index]->got_offset;
3307 /**********************/
3308 /* Encode method info */
3309 /**********************/
3311 buf_size = (patches->len < 1000) ? 40960 : 40960 + (patches->len * 64);
3312 p = buf = g_malloc (buf_size);
3314 if (mono_class_get_cctor (method->klass))
3315 encode_klass_ref (acfg, method->klass, p, &p);
3317 /* Not needed when loading the method */
3318 encode_value (0, p, &p);
3321 if (cfg->opt & MONO_OPT_SHARED) {
3322 encode_value (g_list_length (cfg->ldstr_list), p, &p);
3323 for (l = cfg->ldstr_list; l; l = l->next) {
3324 encode_value ((long)l->data, p, &p);
3328 /* Used only in shared mode */
3329 g_assert (!cfg->ldstr_list);
3332 for (pindex = 0; pindex < patches->len; ++pindex) {
3333 patch_info = g_ptr_array_index (patches, pindex);
3335 if ((patch_info->type == MONO_PATCH_INFO_GOT_OFFSET) ||
3336 (patch_info->type == MONO_PATCH_INFO_NONE)) {
3337 patch_info->type = MONO_PATCH_INFO_NONE;
3342 if ((patch_info->type == MONO_PATCH_INFO_IMAGE) && (patch_info->data.image == acfg->image)) {
3343 /* Stored in a GOT slot initialized at module load time */
3344 patch_info->type = MONO_PATCH_INFO_NONE;
3348 if (is_plt_patch (patch_info)) {
3349 /* Calls are made through the PLT */
3350 patch_info->type = MONO_PATCH_INFO_NONE;
3358 g_assert (cfg->has_got_slots);
3360 encode_patch_list (acfg, patches, n_patches, first_got_offset, p, &p);
3362 acfg->stats.info_size += p - buf;
3364 g_assert (p - buf < buf_size);
3366 cfg->method_info_offset = add_to_blob (acfg, buf, p - buf);
3371 get_unwind_info_offset (MonoAotCompile *acfg, guint8 *encoded, guint32 encoded_len)
3373 guint32 cache_index;
3376 /* Reuse the unwind module to canonize and store unwind info entries */
3377 cache_index = mono_cache_unwind_info (encoded, encoded_len);
3379 /* Use +/- 1 to distinguish 0s from missing entries */
3380 offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1)));
3388 * It would be easier to use assembler symbols, but the caller needs an
3391 offset = acfg->unwind_info_offset;
3392 g_hash_table_insert (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1), GUINT_TO_POINTER (offset + 1));
3393 g_ptr_array_add (acfg->unwind_ops, GUINT_TO_POINTER (cache_index));
3396 encode_value (encoded_len, p, &p);
3398 acfg->unwind_info_offset += encoded_len + (p - buf);
3404 emit_exception_debug_info (MonoAotCompile *acfg, MonoCompile *cfg)
3407 int i, k, buf_size, method_index;
3408 guint32 debug_info_size;
3410 MonoMethodHeader *header;
3411 guint8 *p, *buf, *debug_info;
3412 MonoJitInfo *jinfo = cfg->jit_info;
3414 gboolean use_unwind_ops = FALSE;
3415 MonoSeqPointInfo *seq_points;
3417 method = cfg->orig_method;
3418 code = cfg->native_code;
3419 header = cfg->header;
3421 method_index = get_method_index (acfg, method);
3423 if (!acfg->aot_opts.nodebug) {
3424 mono_debug_serialize_debug_info (cfg, &debug_info, &debug_info_size);
3427 debug_info_size = 0;
3430 seq_points = cfg->seq_point_info;
3432 buf_size = header->num_clauses * 256 + debug_info_size + 1024 + (seq_points ? (seq_points->len * 64) : 0);
3433 p = buf = g_malloc (buf_size);
3435 #ifdef MONO_ARCH_HAVE_XP_UNWIND
3436 use_unwind_ops = cfg->unwind_ops != NULL;
3439 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) | (jinfo->has_try_block_holes ? 32 : 0);
3441 encode_value (flags, p, &p);
3443 if (use_unwind_ops) {
3444 guint32 encoded_len;
3448 * This is a duplicate of the data in the .debug_frame section, but that
3449 * section cannot be accessed using the dl interface.
3451 encoded = mono_unwind_ops_encode (cfg->unwind_ops, &encoded_len);
3452 encode_value (get_unwind_info_offset (acfg, encoded, encoded_len), p, &p);
3455 encode_value (jinfo->used_regs, p, &p);
3458 /*Encode the number of holes before the number of clauses to make decoding easier*/
3459 if (jinfo->has_try_block_holes) {
3460 MonoTryBlockHoleTableJitInfo *table = mono_jit_info_get_try_block_hole_table_info (jinfo);
3461 encode_value (table->num_holes, p, &p);
3464 /* Exception table */
3465 if (cfg->compile_llvm) {
3467 * When using LLVM, we can't emit some data, like pc offsets, this reg/offset etc.,
3468 * since the information is only available to llc. Instead, we let llc save the data
3469 * into the LSDA, and read it from there at runtime.
3471 /* The assembly might be CIL stripped so emit the data ourselves */
3472 if (header->num_clauses)
3473 encode_value (header->num_clauses, p, &p);
3475 for (k = 0; k < header->num_clauses; ++k) {
3476 MonoExceptionClause *clause;
3478 clause = &header->clauses [k];
3480 encode_value (clause->flags, p, &p);
3481 if (clause->data.catch_class) {
3482 encode_value (1, p, &p);
3483 encode_klass_ref (acfg, clause->data.catch_class, p, &p);
3485 encode_value (0, p, &p);
3489 if (jinfo->num_clauses)
3490 encode_value (jinfo->num_clauses, p, &p);
3492 for (k = 0; k < jinfo->num_clauses; ++k) {
3493 MonoJitExceptionInfo *ei = &jinfo->clauses [k];
3495 encode_value (ei->flags, p, &p);
3496 encode_value (ei->exvar_offset, p, &p);
3498 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
3499 encode_value ((gint)((guint8*)ei->data.filter - code), p, &p);
3501 if (ei->data.catch_class) {
3502 encode_value (1, p, &p);
3503 encode_klass_ref (acfg, ei->data.catch_class, p, &p);
3505 encode_value (0, p, &p);
3509 encode_value ((gint)((guint8*)ei->try_start - code), p, &p);
3510 encode_value ((gint)((guint8*)ei->try_end - code), p, &p);
3511 encode_value ((gint)((guint8*)ei->handler_start - code), p, &p);
3515 if (jinfo->has_generic_jit_info) {
3516 MonoGenericJitInfo *gi = mono_jit_info_get_generic_jit_info (jinfo);
3518 if (!cfg->compile_llvm) {
3519 encode_value (gi->has_this ? 1 : 0, p, &p);
3520 encode_value (gi->this_reg, p, &p);
3521 encode_value (gi->this_offset, p, &p);
3525 * Need to encode jinfo->method too, since it is not equal to 'method'
3526 * when using generic sharing.
3528 encode_method_ref (acfg, jinfo->method, p, &p);
3531 if (jinfo->has_try_block_holes) {
3532 MonoTryBlockHoleTableJitInfo *table = mono_jit_info_get_try_block_hole_table_info (jinfo);
3533 for (i = 0; i < table->num_holes; ++i) {
3534 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
3535 encode_value (hole->clause, p, &p);
3536 encode_value (hole->length, p, &p);
3537 encode_value (hole->offset, p, &p);
3542 int il_offset, native_offset, last_il_offset, last_native_offset, j;
3544 encode_value (seq_points->len, p, &p);
3545 last_il_offset = last_native_offset = 0;
3546 for (i = 0; i < seq_points->len; ++i) {
3547 SeqPoint *sp = &seq_points->seq_points [i];
3548 il_offset = sp->il_offset;
3549 native_offset = sp->native_offset;
3550 encode_value (il_offset - last_il_offset, p, &p);
3551 encode_value (native_offset - last_native_offset, p, &p);
3552 last_il_offset = il_offset;
3553 last_native_offset = native_offset;
3555 encode_value (sp->next_len, p, &p);
3556 for (j = 0; j < sp->next_len; ++j)
3557 encode_value (sp->next [j], p, &p);
3562 g_assert (debug_info_size < buf_size);
3564 encode_value (debug_info_size, p, &p);
3565 if (debug_info_size) {
3566 memcpy (p, debug_info, debug_info_size);
3567 p += debug_info_size;
3568 g_free (debug_info);
3571 acfg->stats.ex_info_size += p - buf;
3573 g_assert (p - buf < buf_size);
3576 cfg->ex_info_offset = add_to_blob (acfg, buf, p - buf);
3581 emit_klass_info (MonoAotCompile *acfg, guint32 token)
3583 MonoClass *klass = mono_class_get (acfg->image, token);
3585 int i, buf_size, res;
3586 gboolean no_special_static, cant_encode;
3587 gpointer iter = NULL;
3590 return add_to_blob (acfg, NULL, 0);
3592 buf_size = 10240 + (klass->vtable_size * 16);
3593 p = buf = g_malloc (buf_size);
3597 mono_class_init (klass);
3599 mono_class_get_nested_types (klass, &iter);
3600 g_assert (klass->nested_classes_inited);
3602 mono_class_setup_vtable (klass);
3605 * Emit all the information which is required for creating vtables so
3606 * the runtime does not need to create the MonoMethod structures which
3607 * take up a lot of space.
3610 no_special_static = !mono_class_has_special_static_fields (klass);
3612 /* Check whenever we have enough info to encode the vtable */
3613 cant_encode = FALSE;
3614 for (i = 0; i < klass->vtable_size; ++i) {
3615 MonoMethod *cm = klass->vtable [i];
3617 if (cm && mono_method_signature (cm)->is_inflated && !g_hash_table_lookup (acfg->token_info_hash, cm))
3621 if (klass->generic_container || cant_encode) {
3622 encode_value (-1, p, &p);
3624 encode_value (klass->vtable_size, p, &p);
3625 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);
3626 if (klass->has_cctor)
3627 encode_method_ref (acfg, mono_class_get_cctor (klass), p, &p);
3628 if (klass->has_finalize)
3629 encode_method_ref (acfg, mono_class_get_finalizer (klass), p, &p);
3631 encode_value (klass->instance_size, p, &p);
3632 encode_value (mono_class_data_size (klass), p, &p);
3633 encode_value (klass->packing_size, p, &p);
3634 encode_value (klass->min_align, p, &p);
3636 for (i = 0; i < klass->vtable_size; ++i) {
3637 MonoMethod *cm = klass->vtable [i];
3640 encode_method_ref (acfg, cm, p, &p);
3642 encode_value (0, p, &p);
3646 acfg->stats.class_info_size += p - buf;
3648 g_assert (p - buf < buf_size);
3649 res = add_to_blob (acfg, buf, p - buf);
3656 * Calls made from AOTed code are routed through a table of jumps similar to the
3657 * ELF PLT (Program Linkage Table). The differences are the following:
3658 * - the ELF PLT entries make an indirect jump though the GOT so they expect the
3659 * GOT pointer to be in EBX. We want to avoid this, so our table contains direct
3660 * jumps. This means the jumps need to be patched when the address of the callee is
3661 * known. Initially the PLT entries jump to code which transfers control to the
3662 * AOT runtime through the first PLT entry.
3665 emit_plt (MonoAotCompile *acfg)
3671 cache = g_hash_table_new (g_str_hash, g_str_equal);
3674 sprintf (symbol, "plt");
3676 emit_section_change (acfg, ".text", 0);
3677 emit_global (acfg, symbol, TRUE);
3678 emit_alignment (acfg, 16);
3679 emit_label (acfg, symbol);
3680 emit_label (acfg, acfg->plt_symbol);
3682 for (i = 0; i < acfg->plt_offset; ++i) {
3684 char *debug_sym = NULL;
3685 MonoPltEntry *plt_entry = NULL;
3690 * The first plt entry is used to transfer code to the AOT loader.
3692 arch_emit_plt_entry (acfg, i);
3696 plt_entry = g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
3698 sprintf (label, "%s", plt_entry->symbol);
3702 * If the target is directly callable, alias the plt symbol to point to
3704 * FIXME: Use this to simplify emit_and_reloc_code ().
3705 * FIXME: Avoid the got slot.
3706 * FIXME: Add support to the binary writer.
3708 if (ji && is_direct_callable (acfg, NULL, ji) && !acfg->use_bin_writer) {
3709 MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, ji->data.method);
3710 fprintf (acfg->fp, "\n.set %s, %s\n", label, callee_cfg->asm_symbol);
3715 emit_label (acfg, label);
3717 if (acfg->aot_opts.write_symbols) {
3719 case MONO_PATCH_INFO_METHOD:
3720 debug_sym = get_debug_sym (ji->data.method, "plt_", cache);
3722 case MONO_PATCH_INFO_INTERNAL_METHOD:
3723 debug_sym = g_strdup_printf ("plt__jit_icall_%s", ji->data.name);
3725 case MONO_PATCH_INFO_CLASS_INIT:
3726 debug_sym = g_strdup_printf ("plt__class_init_%s", mono_type_get_name (&ji->data.klass->byval_arg));
3727 sanitize_symbol (debug_sym);
3729 case MONO_PATCH_INFO_RGCTX_FETCH:
3730 debug_sym = g_strdup_printf ("plt__rgctx_fetch_%d", acfg->label_generator ++);
3732 case MONO_PATCH_INFO_ICALL_ADDR: {
3733 char *s = get_debug_sym (ji->data.method, "", cache);
3735 debug_sym = g_strdup_printf ("plt__icall_native_%s", s);
3739 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
3740 debug_sym = g_strdup_printf ("plt__jit_icall_native_%s", ji->data.name);
3742 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
3743 debug_sym = g_strdup_printf ("plt__generic_class_init");
3750 emit_local_symbol (acfg, debug_sym, NULL, TRUE);
3751 emit_label (acfg, debug_sym);
3755 arch_emit_plt_entry (acfg, i);
3758 emit_symbol_size (acfg, debug_sym, ".");
3763 emit_symbol_size (acfg, acfg->plt_symbol, ".");
3765 sprintf (symbol, "plt_end");
3766 emit_global (acfg, symbol, TRUE);
3767 emit_label (acfg, symbol);
3769 g_hash_table_destroy (cache);
3772 static G_GNUC_UNUSED void
3773 emit_trampoline (MonoAotCompile *acfg, int got_offset, MonoTrampInfo *info)
3775 char start_symbol [256];
3777 guint32 buf_size, info_offset;
3778 MonoJumpInfo *patch_info;
3789 code_size = info->code_size;
3791 unwind_ops = info->unwind_ops;
3795 sprintf (start_symbol, "%s", name);
3797 emit_section_change (acfg, ".text", 0);
3798 emit_global (acfg, start_symbol, TRUE);
3799 emit_alignment (acfg, 16);
3800 emit_label (acfg, start_symbol);
3802 sprintf (symbol, "%snamed_%s", acfg->temp_prefix, name);
3803 emit_label (acfg, symbol);
3806 * The code should access everything through the GOT, so we pass
3809 emit_and_reloc_code (acfg, NULL, code, code_size, ji, TRUE);
3811 emit_symbol_size (acfg, start_symbol, ".");
3815 /* Sort relocations */
3816 patches = g_ptr_array_new ();
3817 for (patch_info = ji; patch_info; patch_info = patch_info->next)
3818 if (patch_info->type != MONO_PATCH_INFO_NONE)
3819 g_ptr_array_add (patches, patch_info);
3820 g_ptr_array_sort (patches, compare_patches);
3822 buf_size = patches->len * 128 + 128;
3823 buf = g_malloc (buf_size);
3826 encode_patch_list (acfg, patches, patches->len, got_offset, p, &p);
3827 g_assert (p - buf < buf_size);
3829 sprintf (symbol, "%s_p", name);
3831 info_offset = add_to_blob (acfg, buf, p - buf);
3833 emit_section_change (acfg, RODATA_SECT, 0);
3834 emit_global (acfg, symbol, FALSE);
3835 emit_label (acfg, symbol);
3837 emit_int32 (acfg, info_offset);
3839 /* Emit debug info */
3843 sprintf (symbol, "%s", name);
3844 sprintf (symbol2, "%snamed_%s", acfg->temp_prefix, name);
3847 mono_dwarf_writer_emit_trampoline (acfg->dwarf, symbol, symbol2, NULL, NULL, code_size, unwind_ops);
3852 emit_trampolines (MonoAotCompile *acfg)
3855 int i, tramp_got_offset;
3856 MonoAotTrampoline ntype;
3857 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
3862 if (!acfg->aot_opts.full_aot)
3865 g_assert (acfg->image->assembly);
3867 /* Currently, we emit most trampolines into the mscorlib AOT image. */
3868 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
3869 #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
3870 MonoTrampInfo *info;
3873 * Emit the generic trampolines.
3875 * We could save some code by treating the generic trampolines as a wrapper
3876 * method, but that approach has its own complexities, so we choose the simpler
3879 for (tramp_type = 0; tramp_type < MONO_TRAMPOLINE_NUM; ++tramp_type) {
3880 mono_arch_create_generic_trampoline (tramp_type, &info, TRUE);
3881 emit_trampoline (acfg, acfg->got_offset, info);
3884 mono_arch_get_nullified_class_init_trampoline (&info);
3885 emit_trampoline (acfg, acfg->got_offset, info);
3886 #if defined(MONO_ARCH_MONITOR_OBJECT_REG)
3887 mono_arch_create_monitor_enter_trampoline (&info, TRUE);
3888 emit_trampoline (acfg, acfg->got_offset, info);
3889 mono_arch_create_monitor_exit_trampoline (&info, TRUE);
3890 emit_trampoline (acfg, acfg->got_offset, info);
3893 mono_arch_create_generic_class_init_trampoline (&info, TRUE);
3894 emit_trampoline (acfg, acfg->got_offset, info);
3896 /* Emit the exception related code pieces */
3897 code = mono_arch_get_restore_context (&info, TRUE);
3898 emit_trampoline (acfg, acfg->got_offset, info);
3899 code = mono_arch_get_call_filter (&info, TRUE);
3900 emit_trampoline (acfg, acfg->got_offset, info);
3901 code = mono_arch_get_throw_exception (&info, TRUE);
3902 emit_trampoline (acfg, acfg->got_offset, info);
3903 code = mono_arch_get_rethrow_exception (&info, TRUE);
3904 emit_trampoline (acfg, acfg->got_offset, info);
3905 code = mono_arch_get_throw_corlib_exception (&info, TRUE);
3906 emit_trampoline (acfg, acfg->got_offset, info);
3908 #if defined(MONO_ARCH_HAVE_GET_TRAMPOLINES)
3910 GSList *l = mono_arch_get_trampolines (TRUE);
3913 MonoTrampInfo *info = l->data;
3915 emit_trampoline (acfg, acfg->got_offset, info);
3921 for (i = 0; i < 128; ++i) {
3924 offset = MONO_RGCTX_SLOT_MAKE_RGCTX (i);
3925 code = mono_arch_create_rgctx_lazy_fetch_trampoline (offset, &info, TRUE);
3926 emit_trampoline (acfg, acfg->got_offset, info);
3928 offset = MONO_RGCTX_SLOT_MAKE_MRGCTX (i);
3929 code = mono_arch_create_rgctx_lazy_fetch_trampoline (offset, &info, TRUE);
3930 emit_trampoline (acfg, acfg->got_offset, info);
3936 /* delegate_invoke_impl trampolines */
3937 l = mono_arch_get_delegate_invoke_impls ();
3939 MonoTrampInfo *info = l->data;
3941 emit_trampoline (acfg, acfg->got_offset, info);
3946 #endif /* #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES */
3948 /* Emit trampolines which are numerous */
3951 * These include the following:
3952 * - specific trampolines
3953 * - static rgctx invoke trampolines
3955 * These trampolines have the same code, they are parameterized by GOT
3957 * They are defined in this file, in the arch_... routines instead of
3958 * in tramp-<ARCH>.c, since it is easier to do it this way.
3962 * When running in aot-only mode, we can't create specific trampolines at
3963 * runtime, so we create a few, and save them in the AOT file.
3964 * Normal trampolines embed their argument as a literal inside the
3965 * trampoline code, we can't do that here, so instead we embed an offset
3966 * which needs to be added to the trampoline address to get the address of
3967 * the GOT slot which contains the argument value.
3968 * The generated trampolines jump to the generic trampolines using another
3969 * GOT slot, which will be setup by the AOT loader to point to the
3970 * generic trampoline code of the given type.
3974 * FIXME: Maybe we should use more specific trampolines (i.e. one class init for
3978 emit_section_change (acfg, ".text", 0);
3980 tramp_got_offset = acfg->got_offset;
3982 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype) {
3984 case MONO_AOT_TRAMP_SPECIFIC:
3985 sprintf (symbol, "specific_trampolines");
3987 case MONO_AOT_TRAMP_STATIC_RGCTX:
3988 sprintf (symbol, "static_rgctx_trampolines");
3990 case MONO_AOT_TRAMP_IMT_THUNK:
3991 sprintf (symbol, "imt_thunks");
3994 g_assert_not_reached ();
3997 emit_global (acfg, symbol, TRUE);
3998 emit_alignment (acfg, 16);
3999 emit_label (acfg, symbol);
4001 acfg->trampoline_got_offset_base [ntype] = tramp_got_offset;
4003 for (i = 0; i < acfg->num_trampolines [ntype]; ++i) {
4007 case MONO_AOT_TRAMP_SPECIFIC:
4008 arch_emit_specific_trampoline (acfg, tramp_got_offset, &tramp_size);
4009 tramp_got_offset += 2;
4011 case MONO_AOT_TRAMP_STATIC_RGCTX:
4012 arch_emit_static_rgctx_trampoline (acfg, tramp_got_offset, &tramp_size);
4013 tramp_got_offset += 2;
4015 case MONO_AOT_TRAMP_IMT_THUNK:
4016 arch_emit_imt_thunk (acfg, tramp_got_offset, &tramp_size);
4017 tramp_got_offset += 1;
4020 g_assert_not_reached ();
4023 if (!acfg->trampoline_size [ntype]) {
4024 g_assert (tramp_size);
4025 acfg->trampoline_size [ntype] = tramp_size;
4030 /* Reserve some entries at the end of the GOT for our use */
4031 acfg->num_trampoline_got_entries = tramp_got_offset - acfg->got_offset;
4034 acfg->got_offset += acfg->num_trampoline_got_entries;
4038 str_begins_with (const char *str1, const char *str2)
4040 int len = strlen (str2);
4041 return strncmp (str1, str2, len) == 0;
4045 mono_aot_parse_options (const char *aot_options, MonoAotOptions *opts)
4047 gchar **args, **ptr;
4049 args = g_strsplit (aot_options ? aot_options : "", ",", -1);
4050 for (ptr = args; ptr && *ptr; ptr ++) {
4051 const char *arg = *ptr;
4053 if (str_begins_with (arg, "outfile=")) {
4054 opts->outfile = g_strdup (arg + strlen ("outfile="));
4055 } else if (str_begins_with (arg, "save-temps")) {
4056 opts->save_temps = TRUE;
4057 } else if (str_begins_with (arg, "keep-temps")) {
4058 opts->save_temps = TRUE;
4059 } else if (str_begins_with (arg, "write-symbols")) {
4060 opts->write_symbols = TRUE;
4061 } else if (str_begins_with (arg, "metadata-only")) {
4062 opts->metadata_only = TRUE;
4063 } else if (str_begins_with (arg, "bind-to-runtime-version")) {
4064 opts->bind_to_runtime_version = TRUE;
4065 } else if (str_begins_with (arg, "full")) {
4066 opts->full_aot = TRUE;
4067 } else if (str_begins_with (arg, "threads=")) {
4068 opts->nthreads = atoi (arg + strlen ("threads="));
4069 } else if (str_begins_with (arg, "static")) {
4070 opts->static_link = TRUE;
4071 opts->no_dlsym = TRUE;
4072 } else if (str_begins_with (arg, "asmonly")) {
4073 opts->asm_only = TRUE;
4074 } else if (str_begins_with (arg, "asmwriter")) {
4075 opts->asm_writer = TRUE;
4076 } else if (str_begins_with (arg, "nodebug")) {
4077 opts->nodebug = TRUE;
4078 } else if (str_begins_with (arg, "ntrampolines=")) {
4079 opts->ntrampolines = atoi (arg + strlen ("ntrampolines="));
4080 } else if (str_begins_with (arg, "nrgctx-trampolines=")) {
4081 opts->nrgctx_trampolines = atoi (arg + strlen ("nrgctx-trampolines="));
4082 } else if (str_begins_with (arg, "nimt-trampolines=")) {
4083 opts->nimt_trampolines = atoi (arg + strlen ("nimt-trampolines="));
4084 } else if (str_begins_with (arg, "autoreg")) {
4085 opts->autoreg = TRUE;
4086 } else if (str_begins_with (arg, "tool-prefix=")) {
4087 opts->tool_prefix = g_strdup (arg + strlen ("tool-prefix="));
4088 } else if (str_begins_with (arg, "soft-debug")) {
4089 opts->soft_debug = TRUE;
4090 } else if (str_begins_with (arg, "print-skipped")) {
4091 opts->print_skipped_methods = TRUE;
4092 } else if (str_begins_with (arg, "stats")) {
4095 fprintf (stderr, "AOT : Unknown argument '%s'.\n", arg);
4104 add_token_info_hash (gpointer key, gpointer value, gpointer user_data)
4106 MonoMethod *method = (MonoMethod*)key;
4107 MonoJumpInfoToken *ji = (MonoJumpInfoToken*)value;
4108 MonoJumpInfoToken *new_ji = g_new0 (MonoJumpInfoToken, 1);
4109 MonoAotCompile *acfg = user_data;
4111 new_ji->image = ji->image;
4112 new_ji->token = ji->token;
4113 g_hash_table_insert (acfg->token_info_hash, method, new_ji);
4117 can_encode_class (MonoAotCompile *acfg, MonoClass *klass)
4119 if (klass->type_token)
4121 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
4124 return can_encode_class (acfg, klass->element_class);
4129 can_encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
4131 switch (patch_info->type) {
4132 case MONO_PATCH_INFO_METHOD:
4133 case MONO_PATCH_INFO_METHODCONST: {
4134 MonoMethod *method = patch_info->data.method;
4136 if (method->wrapper_type) {
4137 switch (method->wrapper_type) {
4138 case MONO_WRAPPER_NONE:
4139 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
4140 case MONO_WRAPPER_XDOMAIN_INVOKE:
4141 case MONO_WRAPPER_STFLD:
4142 case MONO_WRAPPER_LDFLD:
4143 case MONO_WRAPPER_LDFLDA:
4144 case MONO_WRAPPER_LDFLD_REMOTE:
4145 case MONO_WRAPPER_STFLD_REMOTE:
4146 case MONO_WRAPPER_STELEMREF:
4147 case MONO_WRAPPER_ISINST:
4148 case MONO_WRAPPER_PROXY_ISINST:
4149 case MONO_WRAPPER_ALLOC:
4150 case MONO_WRAPPER_REMOTING_INVOKE:
4151 case MONO_WRAPPER_UNKNOWN:
4152 case MONO_WRAPPER_WRITE_BARRIER:
4154 case MONO_WRAPPER_MANAGED_TO_MANAGED:
4155 if (!strcmp (method->name, "ElementAddr"))
4160 //printf ("Skip (wrapper call): %d -> %s\n", patch_info->type, mono_method_full_name (patch_info->data.method, TRUE));
4164 if (!method->token) {
4165 /* The method is part of a constructed type like Int[,].Set (). */
4166 if (!g_hash_table_lookup (acfg->token_info_hash, method)) {
4167 if (method->klass->rank)
4175 case MONO_PATCH_INFO_VTABLE:
4176 case MONO_PATCH_INFO_CLASS_INIT:
4177 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
4178 case MONO_PATCH_INFO_CLASS:
4179 case MONO_PATCH_INFO_IID:
4180 case MONO_PATCH_INFO_ADJUSTED_IID:
4181 if (!can_encode_class (acfg, patch_info->data.klass)) {
4182 //printf ("Skip: %s\n", mono_type_full_name (&patch_info->data.klass->byval_arg));
4186 case MONO_PATCH_INFO_RGCTX_FETCH: {
4187 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
4189 if (!can_encode_patch (acfg, entry->data))
4201 add_generic_class (MonoAotCompile *acfg, MonoClass *klass);
4206 * AOT compile a given method.
4207 * This function might be called by multiple threads, so it must be thread-safe.
4210 compile_method (MonoAotCompile *acfg, MonoMethod *method)
4213 MonoJumpInfo *patch_info;
4216 MonoMethod *wrapped;
4218 if (acfg->aot_opts.metadata_only)
4221 mono_acfg_lock (acfg);
4222 index = get_method_index (acfg, method);
4223 mono_acfg_unlock (acfg);
4225 /* fixme: maybe we can also precompile wrapper methods */
4226 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
4227 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
4228 (method->flags & METHOD_ATTRIBUTE_ABSTRACT)) {
4229 //printf ("Skip (impossible): %s\n", mono_method_full_name (method, TRUE));
4233 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
4236 wrapped = mono_marshal_method_from_wrapper (method);
4237 if (wrapped && (wrapped->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && wrapped->is_generic)
4238 // FIXME: The wrapper should be generic too, but it is not
4241 InterlockedIncrement (&acfg->stats.mcount);
4244 if (method->is_generic || method->klass->generic_container) {
4245 InterlockedIncrement (&acfg->stats.genericcount);
4250 //acfg->aot_opts.print_skipped_methods = TRUE;
4253 * Since these methods are the only ones which are compiled with
4254 * AOT support, and they are not used by runtime startup/shutdown code,
4255 * the runtime will not see AOT methods during AOT compilation,so it
4256 * does not need to support them by creating a fake GOT etc.
4258 cfg = mini_method_compile (method, acfg->opts, mono_get_root_domain (), FALSE, TRUE, 0);
4259 if (cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
4260 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
4261 InterlockedIncrement (&acfg->stats.genericcount);
4264 if (cfg->exception_type != MONO_EXCEPTION_NONE) {
4265 /* Let the exception happen at runtime */
4269 if (cfg->disable_aot) {
4270 if (acfg->aot_opts.print_skipped_methods)
4271 printf ("Skip (disabled): %s\n", mono_method_full_name (method, TRUE));
4272 InterlockedIncrement (&acfg->stats.ocount);
4273 mono_destroy_compile (cfg);
4277 /* Nullify patches which need no aot processing */
4278 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4279 switch (patch_info->type) {
4280 case MONO_PATCH_INFO_LABEL:
4281 case MONO_PATCH_INFO_BB:
4282 patch_info->type = MONO_PATCH_INFO_NONE;
4289 /* Collect method->token associations from the cfg */
4290 mono_acfg_lock (acfg);
4291 g_hash_table_foreach (cfg->token_info_hash, add_token_info_hash, acfg);
4292 mono_acfg_unlock (acfg);
4295 * Check for absolute addresses.
4298 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4299 switch (patch_info->type) {
4300 case MONO_PATCH_INFO_ABS:
4301 /* unable to handle this */
4310 if (acfg->aot_opts.print_skipped_methods)
4311 printf ("Skip (abs call): %s\n", mono_method_full_name (method, TRUE));
4312 InterlockedIncrement (&acfg->stats.abscount);
4313 mono_destroy_compile (cfg);
4317 /* Lock for the rest of the code */
4318 mono_acfg_lock (acfg);
4321 * Check for methods/klasses we can't encode.
4324 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4325 if (!can_encode_patch (acfg, patch_info))
4330 if (acfg->aot_opts.print_skipped_methods)
4331 printf ("Skip (patches): %s\n", mono_method_full_name (method, TRUE));
4332 acfg->stats.ocount++;
4333 mono_destroy_compile (cfg);
4334 mono_acfg_unlock (acfg);
4338 /* Adds generic instances referenced by this method */
4340 * The depth is used to avoid infinite loops when generic virtual recursion is
4343 depth = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_depth, method));
4345 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4346 switch (patch_info->type) {
4347 case MONO_PATCH_INFO_METHOD: {
4348 MonoMethod *m = patch_info->data.method;
4349 if (m->is_inflated) {
4350 if (!(mono_class_generic_sharing_enabled (m->klass) &&
4351 mono_method_is_generic_sharable_impl (m, FALSE)) &&
4352 !method_has_type_vars (m)) {
4353 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
4354 if (acfg->aot_opts.full_aot)
4355 add_extra_method_with_depth (acfg, mono_marshal_get_native_wrapper (m, TRUE, TRUE), depth + 1);
4357 add_extra_method_with_depth (acfg, m, depth + 1);
4360 add_generic_class_with_depth (acfg, m->klass, depth + 5);
4362 if (m->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && !strcmp (m->name, "ElementAddr"))
4363 add_extra_method_with_depth (acfg, m, depth + 1);
4366 case MONO_PATCH_INFO_VTABLE: {
4367 MonoClass *klass = patch_info->data.klass;
4369 if (klass->generic_class && !mono_generic_context_is_sharable (&klass->generic_class->context, FALSE))
4370 add_generic_class_with_depth (acfg, klass, depth + 5);
4379 /* Determine whenever the method has GOT slots */
4380 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4381 switch (patch_info->type) {
4382 case MONO_PATCH_INFO_GOT_OFFSET:
4383 case MONO_PATCH_INFO_NONE:
4385 case MONO_PATCH_INFO_IMAGE:
4386 /* The assembly is stored in GOT slot 0 */
4387 if (patch_info->data.image != acfg->image)
4388 cfg->has_got_slots = TRUE;
4391 if (!is_plt_patch (patch_info))
4392 cfg->has_got_slots = TRUE;
4397 if (!cfg->has_got_slots)
4398 InterlockedIncrement (&acfg->stats.methods_without_got_slots);
4401 * FIXME: Instead of this mess, allocate the patches from the aot mempool.
4403 /* Make a copy of the patch info which is in the mempool */
4405 MonoJumpInfo *patches = NULL, *patches_end = NULL;
4407 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4408 MonoJumpInfo *new_patch_info = mono_patch_info_dup_mp (acfg->mempool, patch_info);
4411 patches = new_patch_info;
4413 patches_end->next = new_patch_info;
4414 patches_end = new_patch_info;
4416 cfg->patch_info = patches;
4418 /* Make a copy of the unwind info */
4420 GSList *l, *unwind_ops;
4424 for (l = cfg->unwind_ops; l; l = l->next) {
4425 op = mono_mempool_alloc (acfg->mempool, sizeof (MonoUnwindOp));
4426 memcpy (op, l->data, sizeof (MonoUnwindOp));
4427 unwind_ops = g_slist_prepend_mempool (acfg->mempool, unwind_ops, op);
4429 cfg->unwind_ops = g_slist_reverse (unwind_ops);
4431 /* Make a copy of the argument/local info */
4433 MonoInst **args, **locals;
4434 MonoMethodSignature *sig;
4435 MonoMethodHeader *header;
4438 sig = mono_method_signature (method);
4439 args = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * (sig->param_count + sig->hasthis));
4440 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4441 args [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
4442 memcpy (args [i], cfg->args [i], sizeof (MonoInst));
4446 header = mono_method_get_header (method);
4447 locals = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * header->num_locals);
4448 for (i = 0; i < header->num_locals; ++i) {
4449 locals [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
4450 memcpy (locals [i], cfg->locals [i], sizeof (MonoInst));
4452 cfg->locals = locals;
4455 /* Free some fields used by cfg to conserve memory */
4456 mono_mempool_destroy (cfg->mempool);
4457 cfg->mempool = NULL;
4458 g_free (cfg->varinfo);
4459 cfg->varinfo = NULL;
4463 mono_regstate_free (cfg->rs);
4467 //printf ("Compile: %s\n", mono_method_full_name (method, TRUE));
4469 while (index >= acfg->cfgs_size) {
4470 MonoCompile **new_cfgs;
4473 new_size = acfg->cfgs_size * 2;
4474 new_cfgs = g_new0 (MonoCompile*, new_size);
4475 memcpy (new_cfgs, acfg->cfgs, sizeof (MonoCompile*) * acfg->cfgs_size);
4476 g_free (acfg->cfgs);
4477 acfg->cfgs = new_cfgs;
4478 acfg->cfgs_size = new_size;
4480 acfg->cfgs [index] = cfg;
4482 g_hash_table_insert (acfg->method_to_cfg, cfg->orig_method, cfg);
4485 if (cfg->orig_method->wrapper_type)
4486 g_ptr_array_add (acfg->extra_methods, cfg->orig_method);
4489 mono_acfg_unlock (acfg);
4491 InterlockedIncrement (&acfg->stats.ccount);
4495 compile_thread_main (gpointer *user_data)
4497 MonoDomain *domain = user_data [0];
4498 MonoAotCompile *acfg = user_data [1];
4499 GPtrArray *methods = user_data [2];
4502 mono_thread_attach (domain);
4504 for (i = 0; i < methods->len; ++i)
4505 compile_method (acfg, g_ptr_array_index (methods, i));
4509 load_profile_files (MonoAotCompile *acfg)
4513 int file_index, res, method_index, i;
4520 tmp = g_strdup_printf ("%s/.mono/aot-profile-data/%s-%d", g_get_home_dir (), acfg->image->assembly_name, file_index);
4522 if (!g_file_test (tmp, G_FILE_TEST_IS_REGULAR)) {
4527 infile = fopen (tmp, "r");
4530 printf ("Using profile data file '%s'\n", tmp);
4535 res = fscanf (infile, "%32s\n", ver);
4536 if ((res != 1) || strcmp (ver, "#VER:2") != 0) {
4537 printf ("Profile file has wrong version or invalid.\n");
4544 MonoMethodDesc *desc;
4547 if (fgets (name, 1023, infile) == NULL)
4550 /* Kill the newline */
4551 if (strlen (name) > 0)
4552 name [strlen (name) - 1] = '\0';
4554 desc = mono_method_desc_new (name, TRUE);
4556 method = mono_method_desc_search_in_image (desc, acfg->image);
4558 if (method && mono_method_get_token (method)) {
4559 token = mono_method_get_token (method);
4560 method_index = mono_metadata_token_index (token) - 1;
4562 if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (method_index))) {
4563 acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (method_index));
4566 //printf ("No method found matching '%s'.\n", name);
4572 /* Add missing methods */
4574 for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
4575 if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (i)))
4576 unordered = g_list_prepend (unordered, GUINT_TO_POINTER (i));
4578 unordered = g_list_reverse (unordered);
4579 if (acfg->method_order)
4580 g_list_last (acfg->method_order)->next = unordered;
4582 acfg->method_order = unordered;
4585 /* Used by the LLVM backend */
4587 mono_aot_get_got_offset (MonoJumpInfo *ji)
4589 return get_got_offset (llvm_acfg, ji);
4593 mono_aot_get_method_name (MonoCompile *cfg)
4595 guint32 method_index = get_method_index (llvm_acfg, cfg->orig_method);
4597 return g_strdup_printf ("m_%x", method_index);
4601 mono_aot_get_method_debug_name (MonoCompile *cfg)
4603 return get_debug_sym (cfg->orig_method, "", llvm_acfg->method_label_hash);
4607 mono_aot_get_plt_symbol (MonoJumpInfoType type, gconstpointer data)
4609 MonoJumpInfo *ji = mono_mempool_alloc (llvm_acfg->mempool, sizeof (MonoJumpInfo));
4610 MonoPltEntry *plt_entry;
4613 ji->data.target = data;
4615 if (!can_encode_patch (llvm_acfg, ji))
4618 plt_entry = get_plt_entry (llvm_acfg, ji);
4620 return g_strdup_printf (plt_entry->symbol);
4624 mono_aot_patch_info_dup (MonoJumpInfo* ji)
4628 mono_acfg_lock (llvm_acfg);
4629 res = mono_patch_info_dup_mp (llvm_acfg->mempool, ji);
4630 mono_acfg_unlock (llvm_acfg);
4640 * Emit the LLVM code into an LLVM bytecode file, and compile it using the LLVM
4644 emit_llvm_file (MonoAotCompile *acfg)
4646 char *command, *opts;
4648 MonoJumpInfo *patch_info;
4649 const char *llc_extra_args;
4652 * When using LLVM, we let llvm emit the got since the LLVM IL needs to refer
4656 /* Compute the final size of the got */
4657 for (i = 0; i < acfg->nmethods; ++i) {
4658 if (acfg->cfgs [i]) {
4659 for (patch_info = acfg->cfgs [i]->patch_info; patch_info; patch_info = patch_info->next) {
4660 if (patch_info->type != MONO_PATCH_INFO_NONE) {
4661 if (!is_plt_patch (patch_info))
4662 get_got_offset (acfg, patch_info);
4664 get_plt_entry (acfg, patch_info);
4670 acfg->final_got_size = acfg->got_offset + acfg->plt_offset;
4672 if (acfg->aot_opts.full_aot) {
4676 * Need to add the got entries used by the trampolines.
4677 * This is only a conservative approximation.
4679 if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
4680 /* For the generic + rgctx trampolines */
4681 acfg->final_got_size += 200;
4682 /* For the specific trampolines */
4683 for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype)
4684 acfg->final_got_size += acfg->num_trampolines [ntype] * 2;
4689 mono_llvm_emit_aot_module ("temp.bc", acfg->final_got_size);
4692 * FIXME: Experiment with adding optimizations, the -std-compile-opts set takes
4693 * a lot of time, and doesn't seem to save much space.
4694 * The following optimizations cannot be enabled:
4696 * - 'jump-threading' changes our blockaddress references to int constants.
4697 * The opt list below was produced by taking the output of:
4698 * llvm-as < /dev/null | opt -O2 -disable-output -debug-pass=Arguments
4699 * then removing tailcallelim + the global opts, and adding a second gvn.
4701 opts = g_strdup ("-instcombine -simplifycfg");
4702 opts = g_strdup ("-simplifycfg -domtree -domfrontier -scalarrepl -instcombine -simplifycfg -basiccg -prune-eh -inline -functionattrs -domtree -domfrontier -scalarrepl -simplify-libcalls -instcombine -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 -domtree -memdep -dse -adce -gvn -simplifycfg -preverify -domtree -verify");
4704 command = g_strdup_printf ("opt -f %s -o temp.opt.bc temp.bc", opts);
4705 printf ("Executing opt: %s\n", command);
4706 if (system (command) != 0) {
4712 #if !LLVM_CHECK_VERSION(2, 8)
4713 /* LLVM 2.8 removed the -f flag ??? */
4714 llc_extra_args = "-f";
4716 llc_extra_args = "";
4718 command = g_strdup_printf ("llc %s %s -relocation-model=pic -unwind-tables -o %s temp.opt.bc", LLC_TARGET_ARGS, llc_extra_args, acfg->tmpfname);
4720 printf ("Executing llc: %s\n", command);
4722 if (system (command) != 0) {
4729 emit_code (MonoAotCompile *acfg)
4733 char end_symbol [256];
4736 #if defined(TARGET_POWERPC64)
4737 sprintf (symbol, ".Lgot_addr");
4738 emit_section_change (acfg, ".text", 0);
4739 emit_alignment (acfg, 8);
4740 emit_label (acfg, symbol);
4741 emit_pointer (acfg, acfg->got_symbol);
4745 * This global symbol is used to compute the address of each method using the
4746 * code_offsets array. It is also used to compute the memory ranges occupied by
4747 * AOT code, so it must be equal to the address of the first emitted method.
4749 sprintf (symbol, "methods");
4750 emit_section_change (acfg, ".text", 0);
4751 emit_global (acfg, symbol, TRUE);
4752 emit_alignment (acfg, 8);
4754 for (i = 0; i < acfg->nmethods; ++i) {
4755 if (acfg->cfgs [i] && acfg->cfgs [i]->compile_llvm) {
4756 fprintf (acfg->fp, "\n.set methods, %s\n", acfg->cfgs [i]->asm_symbol);
4760 if (i == acfg->nmethods)
4761 /* No LLVM compiled methods */
4762 emit_label (acfg, symbol);
4764 emit_label (acfg, symbol);
4768 * Emit some padding so the local symbol for the first method doesn't have the
4769 * same address as 'methods'.
4771 emit_zero_bytes (acfg, 16);
4773 for (l = acfg->method_order; l != NULL; l = l->next) {
4777 i = GPOINTER_TO_UINT (l->data);
4779 cfg = acfg->cfgs [i];
4784 method = cfg->orig_method;
4786 /* Emit unbox trampoline */
4787 if (acfg->aot_opts.full_aot && cfg->orig_method->klass->valuetype && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
4788 char call_target [256];
4790 if (!method->wrapper_type && !method->is_inflated) {
4791 g_assert (method->token);
4792 sprintf (symbol, "ut_%d", mono_metadata_token_index (method->token) - 1);
4794 sprintf (symbol, "ut_e_%d", get_method_index (acfg, method));
4797 emit_section_change (acfg, ".text", 0);
4798 emit_global (acfg, symbol, TRUE);
4799 emit_label (acfg, symbol);
4801 sprintf (call_target, "%s", cfg->asm_symbol);
4803 arch_emit_unbox_trampoline (acfg, cfg->orig_method, cfg->generic_sharing_context, call_target);
4806 if (cfg->compile_llvm)
4807 acfg->stats.llvm_count ++;
4809 emit_method_code (acfg, cfg);
4812 sprintf (symbol, "methods_end");
4813 emit_section_change (acfg, ".text", 0);
4814 emit_global (acfg, symbol, FALSE);
4815 emit_alignment (acfg, 8);
4816 emit_label (acfg, symbol);
4818 sprintf (symbol, "code_offsets");
4819 emit_section_change (acfg, RODATA_SECT, 1);
4820 emit_global (acfg, symbol, FALSE);
4821 emit_alignment (acfg, 8);
4822 emit_label (acfg, symbol);
4824 acfg->stats.offsets_size += acfg->nmethods * 4;
4826 sprintf (end_symbol, "methods");
4827 for (i = 0; i < acfg->nmethods; ++i) {
4828 if (acfg->cfgs [i]) {
4829 emit_symbol_diff (acfg, acfg->cfgs [i]->asm_symbol, end_symbol, 0);
4831 emit_int32 (acfg, 0xffffffff);
4838 emit_info (MonoAotCompile *acfg)
4845 offsets = g_new0 (gint32, acfg->nmethods);
4847 for (l = acfg->method_order; l != NULL; l = l->next) {
4848 i = GPOINTER_TO_UINT (l->data);
4850 if (acfg->cfgs [i]) {
4851 emit_method_info (acfg, acfg->cfgs [i]);
4852 offsets [i] = acfg->cfgs [i]->method_info_offset;
4858 sprintf (symbol, "method_info_offsets");
4859 emit_section_change (acfg, RODATA_SECT, 1);
4860 emit_global (acfg, symbol, FALSE);
4861 emit_alignment (acfg, 8);
4862 emit_label (acfg, symbol);
4864 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->nmethods, 10, offsets);
4869 #endif /* #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT) */
4871 #define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
4872 #define mix(a,b,c) { \
4873 a -= c; a ^= rot(c, 4); c += b; \
4874 b -= a; b ^= rot(a, 6); a += c; \
4875 c -= b; c ^= rot(b, 8); b += a; \
4876 a -= c; a ^= rot(c,16); c += b; \
4877 b -= a; b ^= rot(a,19); a += c; \
4878 c -= b; c ^= rot(b, 4); b += a; \
4880 #define final(a,b,c) { \
4881 c ^= b; c -= rot(b,14); \
4882 a ^= c; a -= rot(c,11); \
4883 b ^= a; b -= rot(a,25); \
4884 c ^= b; c -= rot(b,16); \
4885 a ^= c; a -= rot(c,4); \
4886 b ^= a; b -= rot(a,14); \
4887 c ^= b; c -= rot(b,24); \
4891 mono_aot_type_hash (MonoType *t1)
4893 guint hash = t1->type;
4895 hash |= t1->byref << 6; /* do not collide with t1->type values */
4897 case MONO_TYPE_VALUETYPE:
4898 case MONO_TYPE_CLASS:
4899 case MONO_TYPE_SZARRAY:
4900 /* check if the distribution is good enough */
4901 return ((hash << 5) - hash) ^ mono_metadata_str_hash (t1->data.klass->name);
4903 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4904 case MONO_TYPE_ARRAY:
4905 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4906 case MONO_TYPE_GENERICINST:
4907 return ((hash << 5) - hash) ^ 0;
4913 * mono_aot_method_hash:
4915 * Return a hash code for methods which only depends on metadata.
4918 mono_aot_method_hash (MonoMethod *method)
4920 MonoMethodSignature *sig;
4924 guint32 *hashes_start, *hashes;
4927 /* Similar to the hash in mono_method_get_imt_slot () */
4929 sig = mono_method_signature (method);
4931 hashes_count = sig->param_count + 5;
4932 hashes_start = malloc (hashes_count * sizeof (guint32));
4933 hashes = hashes_start;
4935 /* Some wrappers are assigned to random classes */
4936 if (!method->wrapper_type || method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4937 klass = method->klass;
4939 klass = mono_defaults.object_class;
4941 if (!method->wrapper_type) {
4942 char *full_name = mono_type_full_name (&klass->byval_arg);
4944 hashes [0] = mono_metadata_str_hash (full_name);
4948 hashes [0] = mono_metadata_str_hash (klass->name);
4949 hashes [1] = mono_metadata_str_hash (klass->name_space);
4951 if (method->wrapper_type == MONO_WRAPPER_STFLD || method->wrapper_type == MONO_WRAPPER_LDFLD || method->wrapper_type == MONO_WRAPPER_LDFLDA)
4952 /* The method name includes a stringified pointer */
4955 hashes [2] = mono_metadata_str_hash (method->name);
4956 hashes [3] = method->wrapper_type;
4957 hashes [4] = mono_aot_type_hash (sig->ret);
4958 for (i = 0; i < sig->param_count; i++) {
4959 hashes [5 + i] = mono_aot_type_hash (sig->params [i]);
4962 /* Setup internal state */
4963 a = b = c = 0xdeadbeef + (((guint32)hashes_count)<<2);
4965 /* Handle most of the hashes */
4966 while (hashes_count > 3) {
4975 /* Handle the last 3 hashes (all the case statements fall through) */
4976 switch (hashes_count) {
4977 case 3 : c += hashes [2];
4978 case 2 : b += hashes [1];
4979 case 1 : a += hashes [0];
4981 case 0: /* nothing left to add */
4985 free (hashes_start);
4994 * mono_aot_wrapper_name:
4996 * Return a string which uniqely identifies the given wrapper method.
4999 mono_aot_wrapper_name (MonoMethod *method)
5001 char *name, *tmpsig, *klass_desc;
5003 tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
5005 switch (method->wrapper_type) {
5006 case MONO_WRAPPER_RUNTIME_INVOKE:
5007 if (!strcmp (method->name, "runtime_invoke_dynamic"))
5008 name = g_strdup_printf ("(wrapper runtime-invoke-dynamic)");
5010 name = g_strdup_printf ("%s (%s)", method->name, tmpsig);
5013 klass_desc = mono_type_full_name (&method->klass->byval_arg);
5014 name = g_strdup_printf ("%s:%s (%s)", klass_desc, method->name, tmpsig);
5015 g_free (klass_desc);
5025 * mono_aot_get_array_helper_from_wrapper;
5027 * Get the helper method in Array called by an array wrapper method.
5030 mono_aot_get_array_helper_from_wrapper (MonoMethod *method)
5034 MonoGenericContext ctx;
5035 MonoType *args [16];
5036 char *mname, *iname, *s, *s2, *helper_name = NULL;
5038 prefix = "System.Collections.Generic";
5039 s = g_strdup_printf ("%s", method->name + strlen (prefix) + 1);
5040 s2 = strstr (s, "`1.");
5046 //printf ("X: %s %s\n", iname, mname);
5048 if (!strcmp (iname, "IList"))
5049 helper_name = g_strdup_printf ("InternalArray__%s", mname);
5051 helper_name = g_strdup_printf ("InternalArray__%s_%s", iname, mname);
5052 m = mono_class_get_method_from_name (mono_defaults.array_class, helper_name, mono_method_signature (method)->param_count);
5054 g_free (helper_name);
5057 if (m->is_generic) {
5058 memset (&ctx, 0, sizeof (ctx));
5059 args [0] = &method->klass->element_class->byval_arg;
5060 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
5061 m = mono_class_inflate_generic_method (m, &ctx);
5067 #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
5069 typedef struct HashEntry {
5070 guint32 key, value, index;
5071 struct HashEntry *next;
5075 * emit_extra_methods:
5077 * Emit methods which are not in the METHOD table, like wrappers.
5080 emit_extra_methods (MonoAotCompile *acfg)
5082 int i, table_size, buf_size;
5085 guint32 *info_offsets;
5088 HashEntry *entry, *new_entry;
5089 int nmethods, max_chain_length;
5092 info_offsets = g_new0 (guint32, acfg->extra_methods->len);
5094 /* Emit method info */
5096 for (i = 0; i < acfg->extra_methods->len; ++i) {
5097 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
5098 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
5105 p = buf = g_malloc (buf_size);
5109 method = cfg->method_to_register;
5112 if (method->wrapper_type) {
5114 * We encode some wrappers using their name, since encoding them
5115 * directly would be difficult. This also avoids creating the wrapper
5116 * methods at runtime, since they are not needed anyway.
5118 switch (method->wrapper_type) {
5119 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
5120 case MONO_WRAPPER_SYNCHRONIZED:
5121 /* encode_method_ref () can handle these */
5123 case MONO_WRAPPER_RUNTIME_INVOKE:
5124 if (mono_marshal_method_from_wrapper (method) != method && !strstr (method->name, "virtual"))
5125 /* Direct wrapper, encode normally */
5129 name = mono_aot_wrapper_name (method);
5135 encode_value (1, p, &p);
5136 encode_value (method->wrapper_type, p, &p);
5137 strcpy ((char*)p, name);
5138 p += strlen (name ) + 1;
5141 encode_value (0, p, &p);
5142 encode_method_ref (acfg, method, p, &p);
5145 g_assert ((p - buf) < buf_size);
5147 info_offsets [i] = add_to_blob (acfg, buf, p - buf);
5152 * Construct a chained hash table for mapping indexes in extra_method_info to
5155 table_size = g_spaced_primes_closest ((int)(nmethods * 1.5));
5156 table = g_ptr_array_sized_new (table_size);
5157 for (i = 0; i < table_size; ++i)
5158 g_ptr_array_add (table, NULL);
5159 chain_lengths = g_new0 (int, table_size);
5160 max_chain_length = 0;
5161 for (i = 0; i < acfg->extra_methods->len; ++i) {
5162 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
5163 MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
5169 key = info_offsets [i];
5170 value = get_method_index (acfg, method);
5172 hash = mono_aot_method_hash (method) % table_size;
5174 chain_lengths [hash] ++;
5175 max_chain_length = MAX (max_chain_length, chain_lengths [hash]);
5177 new_entry = mono_mempool_alloc0 (acfg->mempool, sizeof (HashEntry));
5178 new_entry->key = key;
5179 new_entry->value = value;
5181 entry = g_ptr_array_index (table, hash);
5182 if (entry == NULL) {
5183 new_entry->index = hash;
5184 g_ptr_array_index (table, hash) = new_entry;
5187 entry = entry->next;
5189 entry->next = new_entry;
5190 new_entry->index = table->len;
5191 g_ptr_array_add (table, new_entry);
5195 //printf ("MAX: %d\n", max_chain_length);
5197 /* Emit the table */
5198 sprintf (symbol, "extra_method_table");
5199 emit_section_change (acfg, RODATA_SECT, 0);
5200 emit_global (acfg, symbol, FALSE);
5201 emit_alignment (acfg, 8);
5202 emit_label (acfg, symbol);
5204 emit_int32 (acfg, table_size);
5205 for (i = 0; i < table->len; ++i) {
5206 HashEntry *entry = g_ptr_array_index (table, i);
5208 if (entry == NULL) {
5209 emit_int32 (acfg, 0);
5210 emit_int32 (acfg, 0);
5211 emit_int32 (acfg, 0);
5213 //g_assert (entry->key > 0);
5214 emit_int32 (acfg, entry->key);
5215 emit_int32 (acfg, entry->value);
5217 emit_int32 (acfg, entry->next->index);
5219 emit_int32 (acfg, 0);
5224 * Emit a table reverse mapping method indexes to their index in extra_method_info.
5225 * This is used by mono_aot_find_jit_info ().
5227 sprintf (symbol, "extra_method_info_offsets");
5228 emit_section_change (acfg, RODATA_SECT, 0);
5229 emit_global (acfg, symbol, FALSE);
5230 emit_alignment (acfg, 8);
5231 emit_label (acfg, symbol);
5233 emit_int32 (acfg, acfg->extra_methods->len);
5234 for (i = 0; i < acfg->extra_methods->len; ++i) {
5235 MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
5237 emit_int32 (acfg, get_method_index (acfg, method));
5238 emit_int32 (acfg, info_offsets [i]);
5243 emit_exception_info (MonoAotCompile *acfg)
5249 offsets = g_new0 (gint32, acfg->nmethods);
5250 for (i = 0; i < acfg->nmethods; ++i) {
5251 if (acfg->cfgs [i]) {
5252 emit_exception_debug_info (acfg, acfg->cfgs [i]);
5253 offsets [i] = acfg->cfgs [i]->ex_info_offset;
5259 sprintf (symbol, "ex_info_offsets");
5260 emit_section_change (acfg, RODATA_SECT, 1);
5261 emit_global (acfg, symbol, FALSE);
5262 emit_alignment (acfg, 8);
5263 emit_label (acfg, symbol);
5265 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->nmethods, 10, offsets);
5270 emit_unwind_info (MonoAotCompile *acfg)
5276 * The unwind info contains a lot of duplicates so we emit each unique
5277 * entry once, and only store the offset from the start of the table in the
5281 sprintf (symbol, "unwind_info");
5282 emit_section_change (acfg, RODATA_SECT, 1);
5283 emit_alignment (acfg, 8);
5284 emit_label (acfg, symbol);
5285 emit_global (acfg, symbol, FALSE);
5287 for (i = 0; i < acfg->unwind_ops->len; ++i) {
5288 guint32 index = GPOINTER_TO_UINT (g_ptr_array_index (acfg->unwind_ops, i));
5289 guint8 *unwind_info;
5290 guint32 unwind_info_len;
5294 unwind_info = mono_get_cached_unwind_info (index, &unwind_info_len);
5297 encode_value (unwind_info_len, p, &p);
5298 emit_bytes (acfg, buf, p - buf);
5299 emit_bytes (acfg, unwind_info, unwind_info_len);
5301 acfg->stats.unwind_info_size += (p - buf) + unwind_info_len;
5306 emit_class_info (MonoAotCompile *acfg)
5312 offsets = g_new0 (gint32, acfg->image->tables [MONO_TABLE_TYPEDEF].rows);
5313 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i)
5314 offsets [i] = emit_klass_info (acfg, MONO_TOKEN_TYPE_DEF | (i + 1));
5316 sprintf (symbol, "class_info_offsets");
5317 emit_section_change (acfg, RODATA_SECT, 1);
5318 emit_global (acfg, symbol, FALSE);
5319 emit_alignment (acfg, 8);
5320 emit_label (acfg, symbol);
5322 acfg->stats.offsets_size += emit_offset_table (acfg, acfg->image->tables [MONO_TABLE_TYPEDEF].rows, 10, offsets);
5326 typedef struct ClassNameTableEntry {
5327 guint32 token, index;
5328 struct ClassNameTableEntry *next;
5329 } ClassNameTableEntry;
5332 emit_class_name_table (MonoAotCompile *acfg)
5335 guint32 token, hash;
5340 ClassNameTableEntry *entry, *new_entry;
5343 * Construct a chained hash table for mapping class names to typedef tokens.
5345 table_size = g_spaced_primes_closest ((int)(acfg->image->tables [MONO_TABLE_TYPEDEF].rows * 1.5));
5346 table = g_ptr_array_sized_new (table_size);
5347 for (i = 0; i < table_size; ++i)
5348 g_ptr_array_add (table, NULL);
5349 for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
5350 token = MONO_TOKEN_TYPE_DEF | (i + 1);
5351 klass = mono_class_get (acfg->image, token);
5354 full_name = mono_type_get_name_full (mono_class_get_type (klass), MONO_TYPE_NAME_FORMAT_FULL_NAME);
5355 hash = mono_metadata_str_hash (full_name) % table_size;
5358 /* FIXME: Allocate from the mempool */
5359 new_entry = g_new0 (ClassNameTableEntry, 1);
5360 new_entry->token = token;
5362 entry = g_ptr_array_index (table, hash);
5363 if (entry == NULL) {
5364 new_entry->index = hash;
5365 g_ptr_array_index (table, hash) = new_entry;
5368 entry = entry->next;
5370 entry->next = new_entry;
5371 new_entry->index = table->len;
5372 g_ptr_array_add (table, new_entry);
5376 /* Emit the table */
5377 sprintf (symbol, "class_name_table");
5378 emit_section_change (acfg, RODATA_SECT, 0);
5379 emit_global (acfg, symbol, FALSE);
5380 emit_alignment (acfg, 8);
5381 emit_label (acfg, symbol);
5383 /* FIXME: Optimize memory usage */
5384 g_assert (table_size < 65000);
5385 emit_int16 (acfg, table_size);
5386 g_assert (table->len < 65000);
5387 for (i = 0; i < table->len; ++i) {
5388 ClassNameTableEntry *entry = g_ptr_array_index (table, i);
5390 if (entry == NULL) {
5391 emit_int16 (acfg, 0);
5392 emit_int16 (acfg, 0);
5394 emit_int16 (acfg, mono_metadata_token_index (entry->token));
5396 emit_int16 (acfg, entry->next->index);
5398 emit_int16 (acfg, 0);
5404 emit_image_table (MonoAotCompile *acfg)
5410 * The image table is small but referenced in a lot of places.
5411 * So we emit it at once, and reference its elements by an index.
5414 sprintf (symbol, "mono_image_table");
5415 emit_section_change (acfg, RODATA_SECT, 1);
5416 emit_global (acfg, symbol, FALSE);
5417 emit_alignment (acfg, 8);
5418 emit_label (acfg, symbol);
5420 emit_int32 (acfg, acfg->image_table->len);
5421 for (i = 0; i < acfg->image_table->len; i++) {
5422 MonoImage *image = (MonoImage*)g_ptr_array_index (acfg->image_table, i);
5423 MonoAssemblyName *aname = &image->assembly->aname;
5425 /* FIXME: Support multi-module assemblies */
5426 g_assert (image->assembly->image == image);
5428 emit_string (acfg, image->assembly_name);
5429 emit_string (acfg, image->guid);
5430 emit_string (acfg, aname->culture ? aname->culture : "");
5431 emit_string (acfg, (const char*)aname->public_key_token);
5433 emit_alignment (acfg, 8);
5434 emit_int32 (acfg, aname->flags);
5435 emit_int32 (acfg, aname->major);
5436 emit_int32 (acfg, aname->minor);
5437 emit_int32 (acfg, aname->build);
5438 emit_int32 (acfg, aname->revision);
5443 emit_got_info (MonoAotCompile *acfg)
5446 int i, first_plt_got_patch, buf_size;
5448 guint32 *got_info_offsets;
5450 /* Add the patches needed by the PLT to the GOT */
5451 acfg->plt_got_offset_base = acfg->got_offset;
5452 first_plt_got_patch = acfg->got_patches->len;
5453 for (i = 1; i < acfg->plt_offset; ++i) {
5454 MonoPltEntry *plt_entry = g_hash_table_lookup (acfg->plt_offset_to_entry, GUINT_TO_POINTER (i));
5456 g_ptr_array_add (acfg->got_patches, plt_entry->ji);
5459 acfg->got_offset += acfg->plt_offset;
5463 * - optimize offsets table.
5464 * - reduce number of exported symbols.
5465 * - emit info for a klass only once.
5466 * - determine when a method uses a GOT slot which is guaranteed to be already
5468 * - clean up and document the code.
5469 * - use String.Empty in class libs.
5472 /* Encode info required to decode shared GOT entries */
5473 buf_size = acfg->got_patches->len * 128;
5474 p = buf = mono_mempool_alloc (acfg->mempool, buf_size);
5475 got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->got_patches->len * sizeof (guint32));
5476 acfg->plt_got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->plt_offset * sizeof (guint32));
5478 if (acfg->plt_offset)
5479 acfg->plt_got_info_offsets [0] = 0;
5480 for (i = 0; i < acfg->got_patches->len; ++i) {
5481 MonoJumpInfo *ji = g_ptr_array_index (acfg->got_patches, i);
5485 encode_value (ji->type, p, &p);
5486 encode_patch (acfg, ji, p, &p);
5488 g_assert (p - buf <= buf_size);
5489 got_info_offsets [i] = add_to_blob (acfg, buf, p - buf);
5491 if (i >= first_plt_got_patch)
5492 acfg->plt_got_info_offsets [i - first_plt_got_patch + 1] = got_info_offsets [i];
5493 acfg->stats.got_info_size += p - buf;
5496 /* Emit got_info_offsets table */
5497 sprintf (symbol, "got_info_offsets");
5498 emit_section_change (acfg, RODATA_SECT, 1);
5499 emit_global (acfg, symbol, FALSE);
5500 emit_alignment (acfg, 8);
5501 emit_label (acfg, symbol);
5503 /* No need to emit offsets for the got plt entries, the plt embeds them directly */
5504 acfg->stats.offsets_size += emit_offset_table (acfg, first_plt_got_patch, 10, (gint32*)got_info_offsets);
5508 emit_got (MonoAotCompile *acfg)
5513 /* Don't make GOT global so accesses to it don't need relocations */
5514 sprintf (symbol, "%s", acfg->got_symbol);
5515 emit_section_change (acfg, ".bss", 0);
5516 emit_alignment (acfg, 8);
5517 emit_local_symbol (acfg, symbol, "got_end", FALSE);
5518 emit_label (acfg, symbol);
5519 if (acfg->got_offset > 0)
5520 emit_zero_bytes (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
5522 sprintf (symbol, "got_end");
5523 emit_label (acfg, symbol);
5526 sprintf (symbol, "mono_aot_got_addr");
5527 emit_section_change (acfg, ".data", 0);
5528 emit_global (acfg, symbol, FALSE);
5529 emit_alignment (acfg, 8);
5530 emit_label (acfg, symbol);
5531 emit_pointer (acfg, acfg->got_symbol);
5534 typedef struct GlobalsTableEntry {
5535 guint32 value, index;
5536 struct GlobalsTableEntry *next;
5537 } GlobalsTableEntry;
5540 emit_globals_table (MonoAotCompile *acfg)
5546 GlobalsTableEntry *entry, *new_entry;
5549 * Construct a chained hash table for mapping global names to their index in
5550 * the globals table.
5552 table_size = g_spaced_primes_closest ((int)(acfg->globals->len * 1.5));
5553 table = g_ptr_array_sized_new (table_size);
5554 for (i = 0; i < table_size; ++i)
5555 g_ptr_array_add (table, NULL);
5556 for (i = 0; i < acfg->globals->len; ++i) {
5557 char *name = g_ptr_array_index (acfg->globals, i);
5559 hash = mono_metadata_str_hash (name) % table_size;
5561 /* FIXME: Allocate from the mempool */
5562 new_entry = g_new0 (GlobalsTableEntry, 1);
5563 new_entry->value = i;
5565 entry = g_ptr_array_index (table, hash);
5566 if (entry == NULL) {
5567 new_entry->index = hash;
5568 g_ptr_array_index (table, hash) = new_entry;
5571 entry = entry->next;
5573 entry->next = new_entry;
5574 new_entry->index = table->len;
5575 g_ptr_array_add (table, new_entry);
5579 /* Emit the table */
5580 sprintf (symbol, ".Lglobals_hash");
5581 emit_section_change (acfg, RODATA_SECT, 0);
5582 emit_alignment (acfg, 8);
5583 emit_label (acfg, symbol);
5585 /* FIXME: Optimize memory usage */
5586 g_assert (table_size < 65000);
5587 emit_int16 (acfg, table_size);
5588 for (i = 0; i < table->len; ++i) {
5589 GlobalsTableEntry *entry = g_ptr_array_index (table, i);
5591 if (entry == NULL) {
5592 emit_int16 (acfg, 0);
5593 emit_int16 (acfg, 0);
5595 emit_int16 (acfg, entry->value + 1);
5597 emit_int16 (acfg, entry->next->index);
5599 emit_int16 (acfg, 0);
5603 /* Emit the names */
5604 for (i = 0; i < acfg->globals->len; ++i) {
5605 char *name = g_ptr_array_index (acfg->globals, i);
5607 sprintf (symbol, "name_%d", i);
5608 emit_section_change (acfg, RODATA_SECT, 1);
5609 emit_label (acfg, symbol);
5610 emit_string (acfg, name);
5613 /* Emit the globals table */
5614 sprintf (symbol, ".Lglobals");
5615 emit_section_change (acfg, ".data", 0);
5616 /* This is not a global, since it is accessed by the init function */
5617 emit_alignment (acfg, 8);
5618 emit_label (acfg, symbol);
5620 sprintf (symbol, "%sglobals_hash", acfg->temp_prefix);
5621 emit_pointer (acfg, symbol);
5623 for (i = 0; i < acfg->globals->len; ++i) {
5624 char *name = g_ptr_array_index (acfg->globals, i);
5626 sprintf (symbol, "name_%d", i);
5627 emit_pointer (acfg, symbol);
5629 sprintf (symbol, "%s", name);
5630 emit_pointer (acfg, symbol);
5632 /* Null terminate the table */
5633 emit_int32 (acfg, 0);
5634 emit_int32 (acfg, 0);
5638 emit_globals (MonoAotCompile *acfg)
5642 emit_string_symbol (acfg, "mono_assembly_guid" , acfg->image->guid);
5644 emit_string_symbol (acfg, "mono_aot_version", MONO_AOT_FILE_VERSION);
5646 if (acfg->aot_opts.bind_to_runtime_version) {
5647 build_info = mono_get_runtime_build_info ();
5648 emit_string_symbol (acfg, "mono_runtime_version", build_info);
5649 g_free (build_info);
5651 emit_string_symbol (acfg, "mono_runtime_version", "");
5655 * When static linking, we emit a global which will point to the symbol table.
5657 if (acfg->aot_opts.static_link) {
5661 /* Emit a string holding the assembly name */
5662 emit_string_symbol (acfg, "mono_aot_assembly_name", acfg->image->assembly->aname.name);
5664 emit_globals_table (acfg);
5667 * Emit a global symbol which can be passed by an embedding app to
5668 * mono_aot_register_module ().
5670 #if defined(__MACH__)
5671 sprintf (symbol, "_mono_aot_module_%s_info", acfg->image->assembly->aname.name);
5673 sprintf (symbol, "mono_aot_module_%s_info", acfg->image->assembly->aname.name);
5676 /* Get rid of characters which cannot occur in symbols */
5678 for (p = symbol; *p; ++p) {
5679 if (!(isalnum (*p) || *p == '_'))
5682 acfg->static_linking_symbol = g_strdup (symbol);
5683 emit_global_inner (acfg, symbol, FALSE);
5684 emit_alignment (acfg, 8);
5685 emit_label (acfg, symbol);
5686 sprintf (symbol, "%sglobals", acfg->temp_prefix);
5687 emit_pointer (acfg, symbol);
5692 emit_autoreg (MonoAotCompile *acfg)
5697 * Emit a function into the .ctor section which will be called by the ELF
5698 * loader to register this module with the runtime.
5700 if (! (!acfg->use_bin_writer && acfg->aot_opts.static_link && acfg->aot_opts.autoreg))
5703 symbol = g_strdup_printf ("_%s_autoreg", acfg->static_linking_symbol);
5705 arch_emit_autoreg (acfg, symbol);
5711 emit_mem_end (MonoAotCompile *acfg)
5715 sprintf (symbol, "mem_end");
5716 emit_section_change (acfg, ".text", 1);
5717 emit_global (acfg, symbol, FALSE);
5718 emit_alignment (acfg, 8);
5719 emit_label (acfg, symbol);
5723 * Emit a structure containing all the information not stored elsewhere.
5726 emit_file_info (MonoAotCompile *acfg)
5731 sprintf (symbol, "mono_aot_file_info");
5732 emit_section_change (acfg, ".data", 0);
5733 emit_alignment (acfg, 8);
5734 emit_label (acfg, symbol);
5735 emit_global (acfg, symbol, FALSE);
5737 /* The data emitted here must match MonoAotFileInfo in aot-runtime.c. */
5738 emit_int32 (acfg, acfg->plt_got_offset_base);
5739 emit_int32 (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
5740 emit_int32 (acfg, acfg->plt_offset);
5741 emit_int32 (acfg, acfg->nmethods);
5742 emit_int32 (acfg, acfg->flags);
5743 emit_int32 (acfg, acfg->opts);
5745 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
5746 emit_int32 (acfg, acfg->num_trampolines [i]);
5747 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
5748 emit_int32 (acfg, acfg->trampoline_got_offset_base [i]);
5749 for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
5750 emit_int32 (acfg, acfg->trampoline_size [i]);
5754 emit_blob (MonoAotCompile *acfg)
5758 sprintf (symbol, "blob");
5759 emit_section_change (acfg, RODATA_SECT, 1);
5760 emit_global (acfg, symbol, FALSE);
5761 emit_alignment (acfg, 8);
5762 emit_label (acfg, symbol);
5764 emit_bytes (acfg, (guint8*)acfg->blob.data, acfg->blob.index);
5768 emit_dwarf_info (MonoAotCompile *acfg)
5770 #ifdef EMIT_DWARF_INFO
5772 char symbol [128], symbol2 [128];
5774 /* DIEs for methods */
5775 for (i = 0; i < acfg->nmethods; ++i) {
5776 MonoCompile *cfg = acfg->cfgs [i];
5781 // FIXME: LLVM doesn't define .Lme_...
5782 if (cfg->compile_llvm)
5785 sprintf (symbol, "%s", cfg->asm_symbol);
5786 sprintf (symbol2, "%sme_%x", acfg->temp_prefix, i);
5788 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 ()));
5794 collect_methods (MonoAotCompile *acfg)
5797 MonoImage *image = acfg->image;
5799 /* Collect methods */
5800 for (i = 0; i < image->tables [MONO_TABLE_METHOD].rows; ++i) {
5802 guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
5804 method = mono_get_method (acfg->image, token, NULL);
5807 printf ("Failed to load method 0x%x from '%s'.\n", token, image->name);
5811 /* Load all methods eagerly to skip the slower lazy loading code */
5812 mono_class_setup_methods (method->klass);
5814 if (acfg->aot_opts.full_aot && method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
5815 /* Compile the wrapper instead */
5816 /* We do this here instead of add_wrappers () because it is easy to do it here */
5817 MonoMethod *wrapper = mono_marshal_get_native_wrapper (method, check_for_pending_exc, TRUE);
5821 /* FIXME: Some mscorlib methods don't have debug info */
5823 if (acfg->aot_opts.soft_debug && !method->wrapper_type) {
5824 if (!((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
5825 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
5826 (method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
5827 (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))) {
5828 if (!mono_debug_lookup_method (method)) {
5829 fprintf (stderr, "Method %s has no debug info, probably the .mdb file for the assembly is missing.\n", mono_method_full_name (method, TRUE));
5836 /* Since we add the normal methods first, their index will be equal to their zero based token index */
5837 add_method_with_index (acfg, method, i, FALSE);
5838 acfg->method_index ++;
5841 add_generic_instances (acfg);
5843 if (acfg->aot_opts.full_aot)
5844 add_wrappers (acfg);
5848 compile_methods (MonoAotCompile *acfg)
5852 if (acfg->aot_opts.nthreads > 0) {
5857 gpointer *user_data;
5858 MonoMethod **methods;
5860 methods_len = acfg->methods->len;
5862 len = acfg->methods->len / acfg->aot_opts.nthreads;
5865 * Partition the list of methods into fragments, and hand it to threads to
5868 threads = g_ptr_array_new ();
5869 /* Make a copy since acfg->methods is modified by compile_method () */
5870 methods = g_new0 (MonoMethod*, methods_len);
5871 //memcpy (methods, g_ptr_array_index (acfg->methods, 0), sizeof (MonoMethod*) * methods_len);
5872 for (i = 0; i < methods_len; ++i)
5873 methods [i] = g_ptr_array_index (acfg->methods, i);
5875 while (i < methods_len) {
5876 frag = g_ptr_array_new ();
5877 for (j = 0; j < len; ++j) {
5878 if (i < methods_len) {
5879 g_ptr_array_add (frag, methods [i]);
5884 user_data = g_new0 (gpointer, 3);
5885 user_data [0] = mono_domain_get ();
5886 user_data [1] = acfg;
5887 user_data [2] = frag;
5889 handle = mono_create_thread (NULL, 0, (gpointer)compile_thread_main, user_data, 0, NULL);
5890 g_ptr_array_add (threads, handle);
5894 for (i = 0; i < threads->len; ++i) {
5895 WaitForSingleObjectEx (g_ptr_array_index (threads, i), INFINITE, FALSE);
5901 /* Compile methods added by compile_method () or all methods if nthreads == 0 */
5902 for (i = methods_len; i < acfg->methods->len; ++i) {
5903 /* This can new methods to acfg->methods */
5904 compile_method (acfg, g_ptr_array_index (acfg->methods, i));
5909 compile_asm (MonoAotCompile *acfg)
5911 char *command, *objfile;
5912 char *outfile_name, *tmp_outfile_name;
5913 const char *tool_prefix = acfg->aot_opts.tool_prefix ? acfg->aot_opts.tool_prefix : "";
5915 #if defined(TARGET_AMD64)
5916 #define AS_OPTIONS "--64"
5917 #elif defined(TARGET_POWERPC64)
5918 #define AS_OPTIONS "-a64 -mppc64"
5919 #define LD_OPTIONS "-m elf64ppc"
5920 #elif defined(sparc) && SIZEOF_VOID_P == 8
5921 #define AS_OPTIONS "-xarch=v9"
5923 #define AS_OPTIONS ""
5927 #define LD_OPTIONS ""
5931 #define EH_LD_OPTIONS "--eh-frame-hdr"
5933 #define EH_LD_OPTIONS ""
5936 if (acfg->aot_opts.asm_only) {
5937 printf ("Output file: '%s'.\n", acfg->tmpfname);
5938 if (acfg->aot_opts.static_link)
5939 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
5943 if (acfg->aot_opts.static_link) {
5944 if (acfg->aot_opts.outfile)
5945 objfile = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5947 objfile = g_strdup_printf ("%s.o", acfg->image->name);
5949 objfile = g_strdup_printf ("%s.o", acfg->tmpfname);
5951 command = g_strdup_printf ("%sas %s %s -o %s", tool_prefix, AS_OPTIONS, acfg->tmpfname, objfile);
5952 printf ("Executing the native assembler: %s\n", command);
5953 if (system (command) != 0) {
5961 if (acfg->aot_opts.static_link) {
5962 printf ("Output file: '%s'.\n", objfile);
5963 printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
5968 if (acfg->aot_opts.outfile)
5969 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
5971 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
5973 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
5976 command = g_strdup_printf ("ld -shared -G -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
5977 #elif defined(__ppc__) && defined(__MACH__)
5978 command = g_strdup_printf ("gcc -dynamiclib -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
5979 #elif defined(HOST_WIN32)
5980 command = g_strdup_printf ("gcc -shared --dll -mno-cygwin -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
5982 command = g_strdup_printf ("%sld %s %s -shared -o %s %s.o", tool_prefix, EH_LD_OPTIONS, LD_OPTIONS, tmp_outfile_name, acfg->tmpfname);
5984 printf ("Executing the native linker: %s\n", command);
5985 if (system (command) != 0) {
5986 g_free (tmp_outfile_name);
5987 g_free (outfile_name);
5995 /*com = g_strdup_printf ("strip --strip-unneeded %s%s", acfg->image->name, SHARED_EXT);
5996 printf ("Stripping the binary: %s\n", com);
6000 #if defined(TARGET_ARM) && !defined(__MACH__)
6002 * gas generates 'mapping symbols' each time code and data is mixed, which
6003 * happens a lot in emit_and_reloc_code (), so we need to get rid of them.
6005 command = g_strdup_printf ("%sstrip --strip-symbol=\\$a --strip-symbol=\\$d %s", tool_prefix, tmp_outfile_name);
6006 printf ("Stripping the binary: %s\n", command);
6007 if (system (command) != 0) {
6008 g_free (tmp_outfile_name);
6009 g_free (outfile_name);
6016 rename (tmp_outfile_name, outfile_name);
6018 g_free (tmp_outfile_name);
6019 g_free (outfile_name);
6022 if (acfg->aot_opts.save_temps)
6023 printf ("Retained input file.\n");
6025 unlink (acfg->tmpfname);
6030 static MonoAotCompile*
6031 acfg_create (MonoAssembly *ass, guint32 opts)
6033 MonoImage *image = ass->image;
6034 MonoAotCompile *acfg;
6037 acfg = g_new0 (MonoAotCompile, 1);
6038 acfg->methods = g_ptr_array_new ();
6039 acfg->method_indexes = g_hash_table_new (NULL, NULL);
6040 acfg->method_depth = g_hash_table_new (NULL, NULL);
6041 acfg->plt_offset_to_entry = g_hash_table_new (NULL, NULL);
6042 acfg->patch_to_plt_entry = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
6043 acfg->patch_to_got_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
6044 acfg->patch_to_got_offset_by_type = g_new0 (GHashTable*, MONO_PATCH_INFO_NUM);
6045 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i)
6046 acfg->patch_to_got_offset_by_type [i] = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
6047 acfg->got_patches = g_ptr_array_new ();
6048 acfg->method_to_cfg = g_hash_table_new (NULL, NULL);
6049 acfg->token_info_hash = g_hash_table_new_full (NULL, NULL, NULL, g_free);
6050 acfg->image_hash = g_hash_table_new (NULL, NULL);
6051 acfg->image_table = g_ptr_array_new ();
6052 acfg->globals = g_ptr_array_new ();
6053 acfg->image = image;
6055 acfg->mempool = mono_mempool_new ();
6056 acfg->extra_methods = g_ptr_array_new ();
6057 acfg->unwind_info_offsets = g_hash_table_new (NULL, NULL);
6058 acfg->unwind_ops = g_ptr_array_new ();
6059 acfg->method_label_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
6060 InitializeCriticalSection (&acfg->mutex);
6066 acfg_free (MonoAotCompile *acfg)
6070 img_writer_destroy (acfg->w);
6071 for (i = 0; i < acfg->nmethods; ++i)
6073 g_free (acfg->cfgs [i]);
6074 g_free (acfg->cfgs);
6075 g_free (acfg->static_linking_symbol);
6076 g_free (acfg->got_symbol);
6077 g_free (acfg->plt_symbol);
6078 g_ptr_array_free (acfg->methods, TRUE);
6079 g_ptr_array_free (acfg->got_patches, TRUE);
6080 g_ptr_array_free (acfg->image_table, TRUE);
6081 g_ptr_array_free (acfg->globals, TRUE);
6082 g_ptr_array_free (acfg->unwind_ops, TRUE);
6083 g_hash_table_destroy (acfg->method_indexes);
6084 g_hash_table_destroy (acfg->method_depth);
6085 g_hash_table_destroy (acfg->plt_offset_to_entry);
6086 g_hash_table_destroy (acfg->patch_to_plt_entry);
6087 g_hash_table_destroy (acfg->patch_to_got_offset);
6088 g_hash_table_destroy (acfg->method_to_cfg);
6089 g_hash_table_destroy (acfg->token_info_hash);
6090 g_hash_table_destroy (acfg->image_hash);
6091 g_hash_table_destroy (acfg->unwind_info_offsets);
6092 g_hash_table_destroy (acfg->method_label_hash);
6093 for (i = 0; i < MONO_PATCH_INFO_NUM; ++i)
6094 g_hash_table_destroy (acfg->patch_to_got_offset_by_type [i]);
6095 g_free (acfg->patch_to_got_offset_by_type);
6096 mono_mempool_destroy (acfg->mempool);
6101 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
6103 MonoImage *image = ass->image;
6105 MonoAotCompile *acfg;
6106 char *outfile_name, *tmp_outfile_name, *p;
6110 printf ("Mono Ahead of Time compiler - compiling assembly %s\n", image->name);
6112 acfg = acfg_create (ass, opts);
6114 memset (&acfg->aot_opts, 0, sizeof (acfg->aot_opts));
6115 acfg->aot_opts.write_symbols = TRUE;
6116 acfg->aot_opts.ntrampolines = 1024;
6117 acfg->aot_opts.nrgctx_trampolines = 1024;
6118 acfg->aot_opts.nimt_trampolines = 128;
6120 mono_aot_parse_options (aot_options, &acfg->aot_opts);
6122 if (acfg->aot_opts.static_link)
6123 acfg->aot_opts.autoreg = TRUE;
6125 //acfg->aot_opts.print_skipped_methods = TRUE;
6127 #ifndef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
6128 if (acfg->aot_opts.full_aot) {
6129 printf ("--aot=full is not supported on this platform.\n");
6134 if (acfg->aot_opts.static_link)
6135 acfg->aot_opts.asm_writer = TRUE;
6137 if (acfg->aot_opts.soft_debug) {
6138 MonoDebugOptions *opt = mini_get_debug_options ();
6140 opt->mdb_optimizations = TRUE;
6141 opt->gen_seq_points = TRUE;
6143 if (mono_debug_format == MONO_DEBUG_FORMAT_NONE) {
6144 fprintf (stderr, "The soft-debug AOT option requires the --debug option.\n");
6151 acfg->aot_opts.asm_writer = TRUE;
6152 acfg->flags |= MONO_AOT_FILE_FLAG_WITH_LLVM;
6155 if (acfg->aot_opts.full_aot)
6156 acfg->flags |= MONO_AOT_FILE_FLAG_FULL_AOT;
6158 load_profile_files (acfg);
6160 acfg->num_trampolines [MONO_AOT_TRAMP_SPECIFIC] = acfg->aot_opts.full_aot ? acfg->aot_opts.ntrampolines : 0;
6161 #ifdef MONO_ARCH_HAVE_STATIC_RGCTX_TRAMPOLINE
6162 acfg->num_trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = acfg->aot_opts.full_aot ? acfg->aot_opts.nrgctx_trampolines : 0;
6164 acfg->num_trampolines [MONO_AOT_TRAMP_IMT_THUNK] = acfg->aot_opts.full_aot ? acfg->aot_opts.nimt_trampolines : 0;
6166 acfg->got_symbol_base = g_strdup_printf ("mono_aot_%s_got", acfg->image->assembly->aname.name);
6167 acfg->plt_symbol = g_strdup_printf ("mono_aot_%s_plt", acfg->image->assembly->aname.name);
6169 /* Get rid of characters which cannot occur in symbols */
6170 for (p = acfg->got_symbol_base; *p; ++p) {
6171 if (!(isalnum (*p) || *p == '_'))
6174 for (p = acfg->plt_symbol; *p; ++p) {
6175 if (!(isalnum (*p) || *p == '_'))
6179 acfg->temp_prefix = img_writer_get_temp_label_prefix (NULL);
6182 * The prefix LLVM likes to put in front of symbol names on darwin.
6183 * The mach-os specs require this for globals, but LLVM puts them in front of all
6184 * symbols. We need to handle this, since we need to refer to LLVM generated
6187 acfg->llvm_label_prefix = "";
6189 acfg->llvm_label_prefix = LLVM_LABEL_PREFIX;
6191 acfg->method_index = 1;
6193 collect_methods (acfg);
6195 acfg->cfgs_size = acfg->methods->len + 32;
6196 acfg->cfgs = g_new0 (MonoCompile*, acfg->cfgs_size);
6198 /* PLT offset 0 is reserved for the PLT trampoline */
6199 acfg->plt_offset = 1;
6203 mono_llvm_create_aot_module (acfg->got_symbol_base);
6206 /* GOT offset 0 is reserved for the address of the current assembly */
6210 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
6211 ji->type = MONO_PATCH_INFO_IMAGE;
6212 ji->data.image = acfg->image;
6214 get_got_offset (acfg, ji);
6216 /* Slot 1 is reserved for the mscorlib got addr */
6217 ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
6218 ji->type = MONO_PATCH_INFO_MSCORLIB_GOT_ADDR;
6219 get_got_offset (acfg, ji);
6224 compile_methods (acfg);
6228 acfg->stats.jit_time = TV_ELAPSED (atv, btv);
6234 if (acfg->aot_opts.asm_only) {
6235 if (acfg->aot_opts.outfile)
6236 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
6238 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
6240 acfg->tmpfname = g_strdup ("temp.s");
6244 emit_llvm_file (acfg);
6247 if (!acfg->aot_opts.asm_only && !acfg->aot_opts.asm_writer && bin_writer_supported ()) {
6248 if (acfg->aot_opts.outfile)
6249 outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
6251 outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
6254 * Can't use g_file_open_tmp () as it will be deleted at exit, and
6255 * it might be in another file system so the rename () won't work.
6257 tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
6259 acfg->fp = fopen (tmp_outfile_name, "w");
6261 printf ("Unable to create temporary file '%s': %s\n", tmp_outfile_name, strerror (errno));
6265 acfg->w = img_writer_create (acfg->fp, TRUE);
6266 acfg->use_bin_writer = TRUE;
6269 /* Append to the .s file created by llvm */
6270 /* FIXME: Use multiple files instead */
6271 acfg->fp = fopen (acfg->tmpfname, "a+");
6273 if (acfg->aot_opts.asm_only) {
6274 if (acfg->aot_opts.outfile)
6275 acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
6277 acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
6278 acfg->fp = fopen (acfg->tmpfname, "w+");
6280 int i = g_file_open_tmp ("mono_aot_XXXXXX", &acfg->tmpfname, NULL);
6281 acfg->fp = fdopen (i, "w+");
6283 g_assert (acfg->fp);
6285 acfg->w = img_writer_create (acfg->fp, FALSE);
6287 tmp_outfile_name = NULL;
6288 outfile_name = NULL;
6291 acfg->got_symbol = g_strdup_printf ("%s%s", acfg->llvm_label_prefix, acfg->got_symbol_base);
6293 /* Compute symbols for methods */
6294 for (i = 0; i < acfg->nmethods; ++i) {
6295 if (acfg->cfgs [i]) {
6296 MonoCompile *cfg = acfg->cfgs [i];
6297 int method_index = get_method_index (acfg, cfg->orig_method);
6299 cfg->asm_symbol = g_strdup_printf ("%s%sm_%x", acfg->temp_prefix, LLVM_LABEL_PREFIX, method_index);
6303 if (!acfg->aot_opts.nodebug)
6304 acfg->dwarf = mono_dwarf_writer_create (acfg->w, NULL, 0, FALSE);
6306 img_writer_emit_start (acfg->w);
6309 mono_dwarf_writer_emit_base_info (acfg->dwarf, mono_unwind_get_cie_program ());
6315 emit_extra_methods (acfg);
6317 emit_trampolines (acfg);
6319 emit_class_name_table (acfg);
6321 emit_got_info (acfg);
6323 emit_exception_info (acfg);
6325 emit_unwind_info (acfg);
6327 emit_class_info (acfg);
6331 emit_image_table (acfg);
6335 emit_file_info (acfg);
6339 emit_globals (acfg);
6341 emit_autoreg (acfg);
6344 emit_dwarf_info (acfg);
6345 mono_dwarf_writer_close (acfg->dwarf);
6348 emit_mem_end (acfg);
6352 acfg->stats.gen_time = TV_ELAPSED (atv, btv);
6355 g_assert (acfg->got_offset <= acfg->final_got_size);
6357 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);
6360 res = img_writer_emit_writeout (acfg->w);
6365 if (acfg->use_bin_writer) {
6366 int err = rename (tmp_outfile_name, outfile_name);
6369 printf ("Unable to rename '%s' to '%s': %s\n", tmp_outfile_name, outfile_name, strerror (errno));
6373 res = compile_asm (acfg);
6380 acfg->stats.link_time = TV_ELAPSED (atv, btv);
6382 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);
6383 if (acfg->stats.genericcount)
6384 printf ("%d methods are generic (%d%%)\n", acfg->stats.genericcount, acfg->stats.mcount ? (acfg->stats.genericcount * 100) / acfg->stats.mcount : 100);
6385 if (acfg->stats.abscount)
6386 printf ("%d methods contain absolute addresses (%d%%)\n", acfg->stats.abscount, acfg->stats.mcount ? (acfg->stats.abscount * 100) / acfg->stats.mcount : 100);
6387 if (acfg->stats.lmfcount)
6388 printf ("%d methods contain lmf pointers (%d%%)\n", acfg->stats.lmfcount, acfg->stats.mcount ? (acfg->stats.lmfcount * 100) / acfg->stats.mcount : 100);
6389 if (acfg->stats.ocount)
6390 printf ("%d methods have other problems (%d%%)\n", acfg->stats.ocount, acfg->stats.mcount ? (acfg->stats.ocount * 100) / acfg->stats.mcount : 100);
6392 printf ("Methods compiled with LLVM: %d (%d%%)\n", acfg->stats.llvm_count, acfg->stats.mcount ? (acfg->stats.llvm_count * 100) / acfg->stats.mcount : 100);
6393 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);
6394 printf ("Direct calls: %d (%d%%)\n", acfg->stats.direct_calls, acfg->stats.all_calls ? (acfg->stats.direct_calls * 100) / acfg->stats.all_calls : 100);
6396 if (acfg->aot_opts.stats) {
6399 printf ("GOT slot distribution:\n");
6400 for (i = 0; i < MONO_PATCH_INFO_NONE; ++i)
6401 if (acfg->stats.got_slot_types [i])
6402 printf ("\t%s: %d\n", get_patch_name (i), acfg->stats.got_slot_types [i]);
6405 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);
6417 mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)