/*
- * aot.c: mono Ahead of Time compiler
+ * aot-compiler.c: mono Ahead of Time compiler
*
* Author:
* Dietmar Maurer (dietmar@ximian.com)
#include <errno.h>
#include <sys/stat.h>
-#include <limits.h> /* for PAGESIZE */
-#ifndef PAGESIZE
-#define PAGESIZE 4096
-#endif
#include <mono/metadata/tabledefs.h>
#include <mono/metadata/class.h>
#include <mono/metadata/metadata-internals.h>
#include <mono/metadata/marshal.h>
#include <mono/metadata/gc-internal.h>
-#include <mono/metadata/method-builder.h>
#include <mono/metadata/monitor.h>
#include <mono/metadata/mempool-internals.h>
#include <mono/metadata/mono-endian.h>
-#include <mono/metadata/mono-debug.h>
-#include <mono/metadata/debug-mono-symfile.h>
+#include <mono/metadata/threads-types.h>
#include <mono/utils/mono-logger.h>
#include <mono/utils/mono-compiler.h>
#include <mono/utils/mono-time.h>
-
-#ifndef PLATFORM_WIN32
-#include <mono/utils/freebsd-elf32.h>
-#include <mono/utils/freebsd-elf64.h>
-#endif
-
-#include <mono/utils/freebsd-dwarf.h>
+#include <mono/utils/mono-mmap.h>
#include "mini.h"
+#include "image-writer.h"
+#include "dwarfwriter.h"
-#ifndef DISABLE_AOT
+#if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
#define TV_DECLARE(name) gint64 name
#define TV_GETTIME(tv) tv = mono_100ns_ticks ()
#define SHARED_EXT ".so"
#endif
-#if defined(sparc) || defined(__ppc__) || defined(__powerpc__) || defined(__MACH__)
-#define AS_STRING_DIRECTIVE ".asciz"
-#else
-/* GNU as */
-#define AS_STRING_DIRECTIVE ".string"
-#endif
-
-
-// __MACH__
-// .byte generates 1 byte per expression.
-// .short generates 2 bytes per expression.
-// .long generates 4 bytes per expression.
-// .quad generates 8 bytes per expression.
-
#define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
#define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
#define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
gboolean static_link;
gboolean asm_only;
gboolean asm_writer;
+ gboolean nodebug;
int nthreads;
+ int ntrampolines;
+ gboolean print_skipped_methods;
} MonoAotOptions;
typedef struct MonoAotStats {
int ccount, mcount, lmfcount, abscount, gcount, ocount, genericcount;
- int code_size, info_size, ex_info_size, got_size, class_info_size, got_info_size, got_info_offsets_size;
+ int code_size, info_size, ex_info_size, unwind_info_size, got_size, class_info_size, got_info_size, got_info_offsets_size;
int methods_without_got_slots, direct_calls, all_calls;
int got_slots;
int got_slot_types [MONO_PATCH_INFO_NONE];
int jit_time, gen_time, link_time;
} MonoAotStats;
-#if defined(__x86_64__) && !defined(PLATFORM_WIN32)
-#define USE_ELF_WRITER 1
-#define USE_ELF_RELA 1
-#endif
-
-#if defined(__i386__) && !defined(PLATFORM_WIN32)
-#define USE_ELF_WRITER 1
-#endif
-
-#if defined(__arm__) && !defined(__MACH__)
-#define USE_ELF_WRITER 1
-#endif
-
-#if defined(__mips__)
-#define USE_ELF_WRITER 1
-#endif
-
-#if defined(USE_ELF_WRITER)
-#define USE_BIN_WRITER 1
-#endif
-
-#ifdef USE_BIN_WRITER
-
-typedef struct _BinSymbol BinSymbol;
-typedef struct _BinReloc BinReloc;
-typedef struct _BinSection BinSection;
-
-#endif
-
-/* emit mode */
-enum {
- EMIT_NONE,
- EMIT_BYTE,
- EMIT_WORD,
- EMIT_LONG
-};
-
typedef struct MonoAotCompile {
MonoImage *image;
GPtrArray *methods;
GPtrArray *globals;
GList *method_order;
guint32 *plt_got_info_offsets;
- /* Number of trampolines emitted into the AOT file */
- guint32 num_aot_trampolines;
guint32 got_offset, plt_offset, plt_got_offset_base;
/* Number of GOT entries reserved for trampolines */
guint32 num_trampoline_got_entries;
- guint32 trampoline_got_offset_base;
+
+ guint32 num_trampolines [MONO_AOT_TRAMP_NUM];
+ guint32 trampoline_got_offset_base [MONO_AOT_TRAMP_NUM];
+ guint32 trampoline_size [MONO_AOT_TRAMP_NUM];
+
MonoAotOptions aot_opts;
guint32 nmethods;
guint32 opts;
char *static_linking_symbol;
CRITICAL_SECTION mutex;
gboolean use_bin_writer;
- /* Bin writer */
-#ifdef USE_BIN_WRITER
- BinSymbol *symbols;
- BinSection *sections;
- BinSection *cur_section;
- BinReloc *relocations;
- GHashTable *labels;
- int num_relocs;
-#endif
- /* Asm writer */
+ MonoImageWriter *w;
+ MonoDwarfWriter *dwarf;
FILE *fp;
char *tmpfname;
- int mode; /* emit mode */
- int col_count; /* bytes emitted per .byte line */
- /* xdebug */
- GHashTable *class_to_die;
- int fde_index, tdie_index, line_number_file_index, line_number_dir_index;
- GHashTable *file_to_index, *dir_to_index;
- FILE *il_file;
- int il_file_line_index, loclist_index;
+ GSList *cie_program;
+ GHashTable *unwind_info_offsets;
+ GPtrArray *unwind_ops;
+ guint32 unwind_info_offset;
} MonoAotCompile;
#define mono_acfg_lock(acfg) EnterCriticalSection (&((acfg)->mutex))
#undef PATCH_INFO
};
-static const char*
+static G_GNUC_UNUSED const char*
get_patch_name (int info)
{
return (const char*)&opstr + opidx [info];
#endif
-static void
-emit_global (MonoAotCompile *acfg, const char *name, gboolean func);
+/* Wrappers around the image writer functions */
-static gboolean
-is_got_patch (MonoJumpInfoType patch_type)
+static inline void
+emit_section_change (MonoAotCompile *acfg, const char *section_name, int subsection_index)
{
- return TRUE;
+ img_writer_emit_section_change (acfg->w, section_name, subsection_index);
}
-static G_GNUC_UNUSED int
-ilog2(register int value)
+static inline void
+emit_push_section (MonoAotCompile *acfg, const char *section_name, int subsection)
{
- int count = -1;
- while (value & ~0xf) count += 4, value >>= 4;
- while (value) count++, value >>= 1;
- return count;
+ img_writer_emit_push_section (acfg->w, section_name, subsection);
}
-#ifdef USE_BIN_WRITER
-
-typedef struct _BinLabel BinLabel;
-struct _BinLabel {
- char *name;
- BinSection *section;
- int offset;
-};
-
-struct _BinReloc {
- BinReloc *next;
- char *val1;
- char *val2;
- BinSection *val2_section;
- int val2_offset;
- int offset;
- BinSection *section;
- int section_offset;
- int reloc_type;
-};
-
-struct _BinSymbol {
- BinSymbol *next;
- char *name;
- BinSection *section;
- int offset;
- gboolean is_function;
- gboolean is_global;
- char *end_label;
-};
-
-struct _BinSection {
- BinSection *next;
- BinSection *parent;
- char *name;
- int subsection;
- guint8 *data;
- int data_len;
- int cur_offset;
- int file_offset;
- int virt_offset;
- int shidx;
-};
-
-static void
-bin_writer_emit_start (MonoAotCompile *acfg)
+static inline void
+emit_pop_section (MonoAotCompile *acfg)
{
- acfg->labels = g_hash_table_new (g_str_hash, g_str_equal);
+ img_writer_emit_pop_section (acfg->w);
}
-static void
-bin_writer_emit_section_change (MonoAotCompile *acfg, const char *section_name, int subsection_index)
-{
- BinSection *section;
-
- if (acfg->cur_section && acfg->cur_section->subsection == subsection_index
- && strcmp (acfg->cur_section->name, section_name) == 0)
- return;
- for (section = acfg->sections; section; section = section->next) {
- if (section->subsection == subsection_index && strcmp (section->name, section_name) == 0) {
- acfg->cur_section = section;
- return;
- }
- }
- if (!section) {
- section = g_new0 (BinSection, 1);
- section->name = g_strdup (section_name);
- section->subsection = subsection_index;
- section->next = acfg->sections;
- acfg->sections = section;
- acfg->cur_section = section;
- }
+static inline void
+emit_local_symbol (MonoAotCompile *acfg, const char *name, const char *end_label, gboolean func)
+{
+ img_writer_emit_local_symbol (acfg->w, name, end_label, func);
}
-static void
-bin_writer_emit_symbol_inner (MonoAotCompile *acfg, const char *name, const char *end_label, gboolean is_global, gboolean func)
-{
- BinSymbol *symbol = g_new0 (BinSymbol, 1);
- symbol->name = g_strdup (name);
- if (end_label)
- symbol->end_label = g_strdup (end_label);
- symbol->is_function = func;
- symbol->is_global = is_global;
- symbol->section = acfg->cur_section;
- /* FIXME: we align after this call... */
- symbol->offset = symbol->section->cur_offset;
- symbol->next = acfg->symbols;
- acfg->symbols = symbol;
+static inline void
+emit_label (MonoAotCompile *acfg, const char *name)
+{
+ img_writer_emit_label (acfg->w, name);
}
-static void
-bin_writer_emit_global_inner (MonoAotCompile *acfg, const char *name, gboolean func)
-{
- bin_writer_emit_symbol_inner (acfg, name, NULL, TRUE, func);
+static inline void
+emit_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
+{
+ img_writer_emit_bytes (acfg->w, buf, size);
}
-static void
-bin_writer_emit_local_symbol (MonoAotCompile *acfg, const char *name, const char *end_label, gboolean func)
-{
- bin_writer_emit_symbol_inner (acfg, name, end_label, FALSE, func);
+static inline void
+emit_string (MonoAotCompile *acfg, const char *value)
+{
+ img_writer_emit_string (acfg->w, value);
}
-static void
-bin_writer_emit_label (MonoAotCompile *acfg, const char *name)
-{
- BinLabel *label = g_new0 (BinLabel, 1);
- label->name = g_strdup (name);
- label->section = acfg->cur_section;
- label->offset = acfg->cur_section->cur_offset;
- g_hash_table_insert (acfg->labels, label->name, label);
+static inline void
+emit_line (MonoAotCompile *acfg)
+{
+ img_writer_emit_line (acfg->w);
}
-static void
-bin_writer_emit_ensure_buffer (BinSection *section, int size)
-{
- int new_offset = section->cur_offset + size;
- if (new_offset >= section->data_len) {
- int new_size = section->data_len? section->data_len * 2: 256;
- guint8 *data;
- while (new_size <= new_offset)
- new_size *= 2;
- data = g_malloc0 (new_size);
- memcpy (data, section->data, section->data_len);
- g_free (section->data);
- section->data = data;
- section->data_len = new_size;
- }
+static inline void
+emit_alignment (MonoAotCompile *acfg, int size)
+{
+ img_writer_emit_alignment (acfg->w, size);
}
-static void
-bin_writer_emit_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
-{
- bin_writer_emit_ensure_buffer (acfg->cur_section, size);
- memcpy (acfg->cur_section->data + acfg->cur_section->cur_offset, buf, size);
- acfg->cur_section->cur_offset += size;
+static inline void
+emit_pointer_unaligned (MonoAotCompile *acfg, const char *target)
+{
+ img_writer_emit_pointer_unaligned (acfg->w, target);
}
-static void
-bin_writer_emit_string (MonoAotCompile *acfg, const char *value)
-{
- int size = strlen (value) + 1;
- bin_writer_emit_bytes (acfg, (const guint8*)value, size);
+static inline void
+emit_pointer (MonoAotCompile *acfg, const char *target)
+{
+ img_writer_emit_pointer (acfg->w, target);
}
-static void
-bin_writer_emit_line (MonoAotCompile *acfg)
-{
- /* Nothing to do in binary writer */
+static inline void
+emit_int16 (MonoAotCompile *acfg, int value)
+{
+ img_writer_emit_int16 (acfg->w, value);
}
-static void
-bin_writer_emit_alignment (MonoAotCompile *acfg, int size)
-{
- int offset = acfg->cur_section->cur_offset;
- int add;
- offset += (size - 1);
- offset &= ~(size - 1);
- add = offset - acfg->cur_section->cur_offset;
- if (add) {
- bin_writer_emit_ensure_buffer (acfg->cur_section, add);
- acfg->cur_section->cur_offset += add;
- }
+static inline void
+emit_int32 (MonoAotCompile *acfg, int value)
+{
+ img_writer_emit_int32 (acfg->w, value);
}
-static void
-bin_writer_emit_pointer_unaligned (MonoAotCompile *acfg, const char *target)
-{
- BinReloc *reloc;
-
- if (!target)
- // FIXME:
- g_assert_not_reached ();
- reloc = g_new0 (BinReloc, 1);
- reloc->val1 = g_strdup (target);
- reloc->section = acfg->cur_section;
- reloc->section_offset = acfg->cur_section->cur_offset;
- reloc->next = acfg->relocations;
- acfg->relocations = reloc;
- if (strcmp (reloc->section->name, ".data") == 0) {
- acfg->num_relocs++;
- g_print ("reloc: %s at %d\n", target, acfg->cur_section->cur_offset);
- }
- acfg->cur_section->cur_offset += sizeof (gpointer);
+static inline void
+emit_symbol_diff (MonoAotCompile *acfg, const char *end, const char* start, int offset)
+{
+ img_writer_emit_symbol_diff (acfg->w, end, start, offset);
}
-static void
-bin_writer_emit_pointer (MonoAotCompile *acfg, const char *target)
-{
- bin_writer_emit_alignment (acfg, sizeof (gpointer));
- bin_writer_emit_pointer_unaligned (acfg, target);
+static inline void
+emit_zero_bytes (MonoAotCompile *acfg, int num)
+{
+ img_writer_emit_zero_bytes (acfg->w, num);
}
-static void
-bin_writer_emit_int16 (MonoAotCompile *acfg, int value)
-{
- guint8 *data;
- bin_writer_emit_ensure_buffer (acfg->cur_section, 2);
- data = acfg->cur_section->data + acfg->cur_section->cur_offset;
- acfg->cur_section->cur_offset += 2;
- /* FIXME: little endian */
- data [0] = value;
- data [1] = value >> 8;
+static inline void
+emit_byte (MonoAotCompile *acfg, guint8 val)
+{
+ img_writer_emit_byte (acfg->w, val);
}
-static void
-bin_writer_emit_int32 (MonoAotCompile *acfg, int value)
+static G_GNUC_UNUSED void
+emit_global_inner (MonoAotCompile *acfg, const char *name, gboolean func)
{
- guint8 *data;
- bin_writer_emit_ensure_buffer (acfg->cur_section, 4);
- data = acfg->cur_section->data + acfg->cur_section->cur_offset;
- acfg->cur_section->cur_offset += 4;
- /* FIXME: little endian */
- data [0] = value;
- data [1] = value >> 8;
- data [2] = value >> 16;
- data [3] = value >> 24;
+ img_writer_emit_global (acfg->w, name, func);
}
-static BinReloc*
-create_reloc (MonoAotCompile *acfg, const char *end, const char* start, int offset)
+static void
+emit_global (MonoAotCompile *acfg, const char *name, gboolean func)
{
- BinReloc *reloc;
- reloc = mono_mempool_alloc0 (acfg->mempool, sizeof (BinReloc));
- reloc->val1 = mono_mempool_strdup (acfg->mempool, end);
- if (strcmp (start, ".") == 0) {
- reloc->val2_section = acfg->cur_section;
- reloc->val2_offset = acfg->cur_section->cur_offset;
+ if (acfg->aot_opts.no_dlsym) {
+ g_ptr_array_add (acfg->globals, g_strdup (name));
} else {
- reloc->val2 = mono_mempool_strdup (acfg->mempool, start);
+ img_writer_emit_global (acfg->w, name, func);
}
- reloc->offset = offset;
- reloc->section = acfg->cur_section;
- reloc->section_offset = acfg->cur_section->cur_offset;
- reloc->next = acfg->relocations;
- acfg->relocations = reloc;
- return reloc;
}
static void
-bin_writer_emit_symbol_diff (MonoAotCompile *acfg, const char *end, const char* start, int offset)
+emit_string_symbol (MonoAotCompile *acfg, const char *name, const char *value)
{
- create_reloc (acfg, end, start, offset);
- acfg->cur_section->cur_offset += 4;
- /*if (strcmp (reloc->section->name, ".data") == 0) {
- acfg->num_relocs++;
- g_print ("reloc: %s - %s + %d at %d\n", end, start, offset, acfg->cur_section->cur_offset - 4);
- }*/
+ img_writer_emit_section_change (acfg->w, ".text", 1);
+ emit_global (acfg, name, FALSE);
+ img_writer_emit_label (acfg->w, name);
+ img_writer_emit_string (acfg->w, value);
}
-/*
- * Emit a relocation entry of type RELOC_TYPE against symbol SYMBOL at the current PC.
- * Do not advance PC.
- */
static G_GNUC_UNUSED void
-bin_writer_emit_reloc (MonoAotCompile *acfg, int reloc_type, const char *symbol, int addend)
+emit_uleb128 (MonoAotCompile *acfg, guint32 value)
{
- BinReloc *reloc = create_reloc (acfg, symbol, ".", addend);
- reloc->reloc_type = reloc_type;
+ do {
+ guint8 b = value & 0x7f;
+ value >>= 7;
+ if (value != 0) /* more bytes to come */
+ b |= 0x80;
+ emit_byte (acfg, b);
+ } while (value);
}
-static void
-bin_writer_emit_zero_bytes (MonoAotCompile *acfg, int num)
+static G_GNUC_UNUSED void
+emit_sleb128 (MonoAotCompile *acfg, gint64 value)
{
- bin_writer_emit_ensure_buffer (acfg->cur_section, num);
- acfg->cur_section->cur_offset += num;
-}
-
-#ifdef USE_ELF_WRITER
-
-enum {
- SECT_NULL,
- SECT_HASH,
- SECT_DYNSYM,
- SECT_DYNSTR,
- SECT_REL_DYN,
- SECT_RELA_DYN,
- SECT_TEXT,
- SECT_DYNAMIC,
- SECT_GOT_PLT,
- SECT_DATA,
- SECT_BSS,
- SECT_DEBUG_FRAME,
- SECT_DEBUG_INFO,
- SECT_DEBUG_ABBREV,
- SECT_DEBUG_LINE,
- SECT_DEBUG_LOC,
- SECT_SHSTRTAB,
- SECT_SYMTAB,
- SECT_STRTAB,
- SECT_NUM
-};
-
-/* Relocation types */
-#define R_ARM_CALL 28
-#define R_ARM_ALU_PC_G0_NC 59
-
-#if SIZEOF_VOID_P == 4
-
-typedef Elf32_Ehdr ElfHeader;
-typedef Elf32_Shdr ElfSectHeader;
-typedef Elf32_Phdr ElfProgHeader;
-typedef Elf32_Sym ElfSymbol;
-typedef Elf32_Rel ElfReloc;
-typedef Elf32_Rela ElfRelocA;
-typedef Elf32_Dyn ElfDynamic;
-
-#else
-
-typedef Elf64_Ehdr ElfHeader;
-typedef Elf64_Shdr ElfSectHeader;
-typedef Elf64_Phdr ElfProgHeader;
-typedef Elf64_Sym ElfSymbol;
-typedef Elf64_Rel ElfReloc;
-typedef Elf64_Rela ElfRelocA;
-typedef Elf64_Dyn ElfDynamic;
-
-#endif
-
-typedef struct {
- const char *name;
- int type;
- int esize;
- int flags;
- int align;
-} SectInfo;
-
-static SectInfo section_info [] = {
- {"", 0, 0, 0, 0},
- {".hash", SHT_HASH, 4, 2, SIZEOF_VOID_P},
- {".dynsym", SHT_DYNSYM, sizeof (ElfSymbol), 2, SIZEOF_VOID_P},
- {".dynstr", SHT_STRTAB, 0, 2, 1},
- {".rel.dyn", SHT_REL, sizeof (ElfReloc), 2, SIZEOF_VOID_P},
- {".rela.dyn", SHT_RELA, sizeof (ElfRelocA), 2, SIZEOF_VOID_P},
- {".text", SHT_PROGBITS, 0, 6, 4096},
- {".dynamic", SHT_DYNAMIC, sizeof (ElfDynamic), 3, SIZEOF_VOID_P},
- {".got.plt", SHT_PROGBITS, SIZEOF_VOID_P, 3, SIZEOF_VOID_P},
- {".data", SHT_PROGBITS, 0, 3, 8},
- {".bss", SHT_NOBITS, 0, 3, 8},
- {".debug_frame", SHT_PROGBITS, 0, 0, 8},
- {".debug_info", SHT_PROGBITS, 0, 0, 1},
- {".debug_abbrev", SHT_PROGBITS, 0, 0, 1},
- {".debug_line", SHT_PROGBITS, 0, 0, 1},
- {".debug_loc", SHT_PROGBITS, 0, 0, 1},
- {".shstrtab", SHT_STRTAB, 0, 0, 1},
- {".symtab", SHT_SYMTAB, sizeof (ElfSymbol), 0, SIZEOF_VOID_P},
- {".strtab", SHT_STRTAB, 0, 0, 1}
-};
-
-typedef struct {
- GString *data;
- GHashTable *hash;
-} ElfStrTable;
+ gboolean more = 1;
+ gboolean negative = (value < 0);
+ guint32 size = 64;
+ guint8 byte;
-static int
-str_table_add (ElfStrTable *table, const char* value)
-{
- int idx;
- if (!table->data) {
- table->data = g_string_new_len ("", 1);
- table->hash = g_hash_table_new (g_str_hash, g_str_equal);
+ while (more) {
+ byte = value & 0x7f;
+ value >>= 7;
+ /* the following is unnecessary if the
+ * implementation of >>= uses an arithmetic rather
+ * than logical shift for a signed left operand
+ */
+ if (negative)
+ /* sign extend */
+ value |= - ((gint64)1 <<(size - 7));
+ /* sign bit of byte is second high order bit (0x40) */
+ if ((value == 0 && !(byte & 0x40)) ||
+ (value == -1 && (byte & 0x40)))
+ more = 0;
+ else
+ byte |= 0x80;
+ emit_byte (acfg, byte);
}
- idx = GPOINTER_TO_UINT (g_hash_table_lookup (table->hash, value));
- if (idx)
- return idx;
- idx = table->data->len;
- g_string_append (table->data, value);
- g_string_append_c (table->data, 0);
- g_hash_table_insert (table->hash, (void*)value, GUINT_TO_POINTER (idx));
- return idx;
}
-static void
-append_subsection (MonoAotCompile *acfg, ElfSectHeader *sheaders, BinSection *sect, BinSection *add)
+static G_GNUC_UNUSED void
+encode_uleb128 (guint32 value, guint8 *buf, guint8 **endbuf)
{
- int offset = sect->cur_offset;
- /*offset += (sheaders [sect->shidx].sh_addralign - 1);
- offset &= ~(sheaders [sect->shidx].sh_addralign - 1);*/
- offset += (8 - 1);
- offset &= ~(8 - 1);
- bin_writer_emit_ensure_buffer (sect, offset);
- g_print ("section %s aligned to %d from %d\n", sect->name, offset, sect->cur_offset);
- sect->cur_offset = offset;
-
- bin_writer_emit_ensure_buffer (sect, add->cur_offset);
- memcpy (sect->data + sect->cur_offset, add->data, add->cur_offset);
- add->parent = sect;
- sect->cur_offset += add->cur_offset;
- add->cur_offset = offset; /* it becomes the offset in the parent section */
- g_print ("subsection %d of %s added at offset %d (align: %d)\n", add->subsection, sect->name, add->cur_offset, (int)sheaders [sect->shidx].sh_addralign);
- add->data = NULL;
- add->data_len = 0;
-}
+ guint8 *p = buf;
-/* merge the subsections */
-static int
-collect_sections (MonoAotCompile *acfg, ElfSectHeader *sheaders, BinSection **out, int num)
-{
- int i, j, maxs, num_sections;
- BinSection *sect;
-
- num_sections = 0;
- maxs = 0;
- for (sect = acfg->sections; sect; sect = sect->next) {
- if (sect->subsection == 0) {
- out [num_sections++] = sect;
- g_assert (num_sections < num);
- }
- maxs = MAX (maxs, sect->subsection);
- }
- for (i = 0; i < num_sections; i++) {
- for (j = 1; j <= maxs; ++j) {
- for (sect = acfg->sections; sect; sect = sect->next) {
- if (sect->subsection == j && strcmp (out [i]->name, sect->name) == 0) {
- append_subsection (acfg, sheaders, out [i], sect);
- }
- }
- }
- }
- return num_sections;
-}
+ do {
+ guint8 b = value & 0x7f;
+ value >>= 7;
+ if (value != 0) /* more bytes to come */
+ b |= 0x80;
+ *p ++ = b;
+ } while (value);
-static unsigned long
-elf_hash (const unsigned char *name)
-{
- unsigned long h = 0, g;
- while (*name) {
- h = (h << 4) + *name++;
- if ((g = h & 0xf0000000))
- h ^= g >> 24;
- h &= ~g;
- }
- return h;
+ *endbuf = p;
}
-#define NUM_BUCKETS 17
-
-static int*
-build_hash (MonoAotCompile *acfg, int num_sections, ElfStrTable *dynstr)
+static G_GNUC_UNUSED void
+encode_sleb128 (gint32 value, guint8 *buf, guint8 **endbuf)
{
- int *data;
- int num_symbols = 1 + num_sections + 3;
- BinSymbol *symbol;
+ gboolean more = 1;
+ gboolean negative = (value < 0);
+ guint32 size = 32;
+ guint8 byte;
+ guint8 *p = buf;
- for (symbol = acfg->symbols; symbol; symbol = symbol->next) {
- if (!symbol->is_global)
- continue;
- num_symbols++;
- str_table_add (dynstr, symbol->name);
- /*g_print ("adding sym: %s\n", symbol->name);*/
+ while (more) {
+ byte = value & 0x7f;
+ value >>= 7;
+ /* the following is unnecessary if the
+ * implementation of >>= uses an arithmetic rather
+ * than logical shift for a signed left operand
+ */
+ if (negative)
+ /* sign extend */
+ value |= - (1 <<(size - 7));
+ /* sign bit of byte is second high order bit (0x40) */
+ if ((value == 0 && !(byte & 0x40)) ||
+ (value == -1 && (byte & 0x40)))
+ more = 0;
+ else
+ byte |= 0x80;
+ *p ++= byte;
}
- str_table_add (dynstr, "__bss_start");
- str_table_add (dynstr, "_edata");
- str_table_add (dynstr, "_end");
- data = g_new0 (int, num_symbols + 2 + NUM_BUCKETS);
- data [0] = NUM_BUCKETS;
- data [1] = num_symbols;
-
- return data;
+ *endbuf = p;
}
-static gsize
-get_label_addr (MonoAotCompile *acfg, const char *name)
-{
- int offset;
- BinLabel *lab;
- BinSection *section;
- gsize value;
-
- lab = g_hash_table_lookup (acfg->labels, name);
- if (!lab)
- g_error ("Undefined label: '%s'.\n", name);
- section = lab->section;
- offset = lab->offset;
- if (section->parent) {
- value = section->parent->virt_offset + section->cur_offset + offset;
- } else {
- value = section->virt_offset + offset;
- }
- return value;
-}
+/* ARCHITECTURE SPECIFIC CODE */
-static ElfSymbol*
-collect_syms (MonoAotCompile *acfg, int *hash, ElfStrTable *strtab, ElfSectHeader *sheaders, int *num_syms)
-{
- ElfSymbol *symbols;
- BinSymbol *symbol;
- BinSection *section;
- int i;
- int *bucket;
- int *chain;
- unsigned long hashc;
+#if defined(TARGET_X86) || defined(TARGET_AMD64) || defined(TARGET_ARM)
+#define EMIT_DWARF_INFO 1
+#endif
- if (hash)
- symbols = g_new0 (ElfSymbol, hash [1]);
- else {
- i = 0;
- for (symbol = acfg->symbols; symbol; symbol = symbol->next)
- i ++;
-
- symbols = g_new0 (ElfSymbol, i + SECT_NUM + 10); /* FIXME */
- }
+/*
+ * arch_emit_direct_call:
+ *
+ * Emit a direct call to the symbol TARGET. CALL_SIZE is set to the size of the
+ * calling code.
+ */
+static void
+arch_emit_direct_call (MonoAotCompile *acfg, const char *target, int *call_size)
+{
+#if defined(TARGET_X86) || defined(TARGET_AMD64)
+ /* Need to make sure this is exactly 5 bytes long */
+ emit_byte (acfg, '\xe8');
+ emit_symbol_diff (acfg, target, ".", -4);
+ *call_size = 5;
+#elif defined(TARGET_ARM)
+ if (acfg->use_bin_writer) {
+ guint8 buf [4];
+ guint8 *code;
- /* the first symbol is undef, all zeroes */
- i = 1;
- if (sheaders) {
- int j;
- for (j = 1; j < SECT_NUM; ++j) {
- symbols [i].st_info = ELF32_ST_INFO (STB_LOCAL, STT_SECTION);
- symbols [i].st_shndx = j;
- symbols [i].st_value = sheaders [j].sh_addr;
- ++i;
- }
- } else {
- for (section = acfg->sections; section; section = section->next) {
- if (section->parent)
- continue;
- symbols [i].st_info = ELF32_ST_INFO (STB_LOCAL, STT_SECTION);
- if (strcmp (section->name, ".text") == 0) {
- symbols [i].st_shndx = SECT_TEXT;
- section->shidx = SECT_TEXT;
- section->file_offset = 4096;
- symbols [i].st_value = section->virt_offset;
- } else if (strcmp (section->name, ".data") == 0) {
- symbols [i].st_shndx = SECT_DATA;
- section->shidx = SECT_DATA;
- section->file_offset = 4096 + 28; /* FIXME */
- symbols [i].st_value = section->virt_offset;
- } else if (strcmp (section->name, ".bss") == 0) {
- symbols [i].st_shndx = SECT_BSS;
- section->shidx = SECT_BSS;
- section->file_offset = 4096 + 28 + 8; /* FIXME */
- symbols [i].st_value = section->virt_offset;
- }
- ++i;
- }
- }
- for (symbol = acfg->symbols; symbol; symbol = symbol->next) {
- int offset;
- BinLabel *lab;
- if (!symbol->is_global && hash)
- continue;
- symbols [i].st_info = ELF32_ST_INFO (symbol->is_global ? STB_GLOBAL : STB_LOCAL, symbol->is_function? STT_FUNC : STT_OBJECT);
- symbols [i].st_name = str_table_add (strtab, symbol->name);
- /*g_print ("sym name %s tabled to %d\n", symbol->name, symbols [i].st_name);*/
- section = symbol->section;
- symbols [i].st_shndx = section->parent? section->parent->shidx: section->shidx;
- lab = g_hash_table_lookup (acfg->labels, symbol->name);
- offset = lab->offset;
- if (section->parent) {
- symbols [i].st_value = section->parent->virt_offset + section->cur_offset + offset;
- } else {
- symbols [i].st_value = section->virt_offset + offset;
- }
+ code = buf;
+ ARM_BL (code, 0);
- if (symbol->end_label) {
- BinLabel *elab = g_hash_table_lookup (acfg->labels, symbol->end_label);
- g_assert (elab);
- symbols [i].st_size = elab->offset - lab->offset;
- }
- ++i;
- }
- /* add special symbols */
- symbols [i].st_name = str_table_add (strtab, "__bss_start");
- symbols [i].st_shndx = 0xfff1;
- symbols [i].st_info = ELF32_ST_INFO (STB_GLOBAL, 0);
- ++i;
- symbols [i].st_name = str_table_add (strtab, "_edata");
- symbols [i].st_shndx = 0xfff1;
- symbols [i].st_info = ELF32_ST_INFO (STB_GLOBAL, 0);
- ++i;
- symbols [i].st_name = str_table_add (strtab, "_end");
- symbols [i].st_shndx = 0xfff1;
- symbols [i].st_info = ELF32_ST_INFO (STB_GLOBAL, 0);
- ++i;
-
- if (num_syms)
- *num_syms = i;
-
- /* add to hash table */
- if (hash) {
- bucket = hash + 2;
- chain = hash + 2 + hash [0];
- for (i = 0; i < hash [1]; ++i) {
- int slot;
- /*g_print ("checking %d '%s' (sym %d)\n", symbols [i].st_name, strtab->data->str + symbols [i].st_name, i);*/
- if (!symbols [i].st_name)
- continue;
- hashc = elf_hash ((guint8*)strtab->data->str + symbols [i].st_name);
- slot = hashc % hash [0];
- /*g_print ("hashing '%s' at slot %d (sym %d)\n", strtab->data->str + symbols [i].st_name, slot, i);*/
- if (bucket [slot]) {
- chain [i] = bucket [slot];
- bucket [slot] = i;
- } else {
- bucket [slot] = i;
- }
- }
+ img_writer_emit_reloc (acfg->w, R_ARM_CALL, target, -8);
+ emit_bytes (acfg, buf, 4);
+ } else {
+ img_writer_emit_unset_mode (acfg->w);
+ fprintf (acfg->fp, "bl %s\n", target);
}
- return symbols;
+ *call_size = 4;
+#else
+ g_assert_not_reached ();
+#endif
}
+#ifdef MONO_ARCH_AOT_SUPPORTED
+/*
+ * arch_emit_got_offset:
+ *
+ * The memory pointed to by CODE should hold native code for computing the GOT
+ * address. Emit this code while patching it with the offset between code and
+ * the GOT. CODE_SIZE is set to the number of bytes emitted.
+ */
static void
-reloc_symbols (MonoAotCompile *acfg, ElfSymbol *symbols, ElfSectHeader *sheaders, ElfStrTable *strtab, gboolean dynamic)
+arch_emit_got_offset (MonoAotCompile *acfg, guint8 *code, int *code_size)
{
- BinSection *section;
- BinSymbol *symbol;
- int i;
+ guint32 offset = mono_arch_get_patch_offset (code);
+ emit_bytes (acfg, code, offset);
+ emit_symbol_diff (acfg, "got", ".", offset);
- i = 1;
- if (dynamic) {
- for (section = acfg->sections; section; section = section->next) {
- if (section->parent)
- continue;
- symbols [i].st_value = sheaders [section->shidx].sh_addr;
- ++i;
- }
- } else {
- for (i = 1; i < SECT_NUM; ++i) {
- symbols [i].st_value = sheaders [i].sh_addr;
- }
- }
- for (symbol = acfg->symbols; symbol; symbol = symbol->next) {
- int offset;
- BinLabel *lab;
- if (dynamic && !symbol->is_global)
- continue;
- section = symbol->section;
- lab = g_hash_table_lookup (acfg->labels, symbol->name);
- offset = lab->offset;
- if (section->parent) {
- symbols [i].st_value = sheaders [section->parent->shidx].sh_addr + section->cur_offset + offset;
- } else {
- symbols [i].st_value = sheaders [section->shidx].sh_addr + offset;
- }
- ++i;
- }
- /* __bss_start */
- symbols [i].st_value = sheaders [SECT_BSS].sh_addr;
- ++i;
- /* _edata */
- symbols [i].st_value = sheaders [SECT_DATA].sh_addr + sheaders [SECT_DATA].sh_size;
- ++i;
- /* _end */
- symbols [i].st_value = sheaders [SECT_BSS].sh_addr + sheaders [SECT_BSS].sh_size;
- ++i;
+ *code_size = offset + 4;
}
-static void
-resolve_reloc (MonoAotCompile *acfg, BinReloc *reloc, guint8 **out_data, gsize *out_vaddr, gsize *out_start_val, gsize *out_end_val)
-{
- guint8 *data;
- gssize end_val, start_val;
- gsize vaddr;
-
- end_val = get_label_addr (acfg, reloc->val1);
- if (reloc->val2) {
- start_val = get_label_addr (acfg, reloc->val2);
- } else if (reloc->val2_section) {
- start_val = reloc->val2_offset;
- if (reloc->val2_section->parent)
- start_val += reloc->val2_section->parent->virt_offset + reloc->val2_section->cur_offset;
- else
- start_val += reloc->val2_section->virt_offset;
- } else {
- start_val = 0;
- }
- end_val = end_val - start_val + reloc->offset;
- if (reloc->section->parent) {
- data = reloc->section->parent->data;
- data += reloc->section->cur_offset;
- data += reloc->section_offset;
- vaddr = reloc->section->parent->virt_offset;
- vaddr += reloc->section->cur_offset;
- vaddr += reloc->section_offset;
- } else {
- data = reloc->section->data;
- data += reloc->section_offset;
- vaddr = reloc->section->virt_offset;
- vaddr += reloc->section_offset;
- }
+/*
+ * arch_emit_got_access:
+ *
+ * The memory pointed to by CODE should hold native code for loading a GOT
+ * slot. Emit this code while patching it so it accesses the GOT slot GOT_SLOT.
+ * CODE_SIZE is set to the number of bytes emitted.
+ */
+static void
+arch_emit_got_access (MonoAotCompile *acfg, guint8 *code, int got_slot, int *code_size)
+{
+ /* Emit beginning of instruction */
+ emit_bytes (acfg, code, mono_arch_get_patch_offset (code));
+
+ /* Emit the offset */
+#ifdef TARGET_AMD64
+ emit_symbol_diff (acfg, "got", ".", (unsigned int) ((got_slot * sizeof (gpointer)) - 4));
+#elif defined(TARGET_X86)
+ emit_int32 (acfg, (unsigned int) ((got_slot * sizeof (gpointer))));
+#elif defined(TARGET_ARM)
+ emit_symbol_diff (acfg, "got", ".", (unsigned int) ((got_slot * sizeof (gpointer))) - 12);
+#else
+ g_assert_not_reached ();
+#endif
- *out_start_val = start_val;
- *out_end_val = end_val;
- *out_data = data;
- *out_vaddr = vaddr;
+ *code_size = mono_arch_get_patch_offset (code) + 4;
}
-#ifdef USE_ELF_RELA
+#endif
-static ElfRelocA*
-resolve_relocations (MonoAotCompile *acfg)
+/*
+ * arch_emit_plt_entry:
+ *
+ * Emit code for the PLT entry with index INDEX.
+ */
+static void
+arch_emit_plt_entry (MonoAotCompile *acfg, int index)
{
- BinReloc *reloc;
- guint8 *data;
- gsize end_val, start_val;
- ElfRelocA *rr;
- int i;
- gsize vaddr;
-
- rr = g_new0 (ElfRelocA, acfg->num_relocs);
- i = 0;
-
- for (reloc = acfg->relocations; reloc; reloc = reloc->next) {
- resolve_reloc (acfg, reloc, &data, &vaddr, &start_val, &end_val);
- /* FIXME: little endian */
- data [0] = end_val;
- data [1] = end_val >> 8;
- data [2] = end_val >> 16;
- data [3] = end_val >> 24;
- // FIXME:
- if (start_val == 0 && reloc->val1 [0] != '.') {
- rr [i].r_offset = vaddr;
- rr [i].r_info = R_X86_64_RELATIVE;
- rr [i].r_addend = end_val;
- ++i;
- g_assert (i <= acfg->num_relocs);
+#if defined(TARGET_X86)
+ if (index == 0) {
+ /* It is filled up during loading by the AOT loader. */
+ emit_zero_bytes (acfg, 16);
+ } else {
+ /* Need to make sure this is 9 bytes long */
+ emit_byte (acfg, '\xe9');
+ emit_symbol_diff (acfg, "plt", ".", -4);
+ emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
}
- }
- return rr;
-}
+#elif defined(TARGET_AMD64)
+ /*
+ * We can't emit jumps because they are 32 bits only so they can't be patched.
+ * So we make indirect calls through GOT entries which are patched by the AOT
+ * loader to point to .Lpd entries.
+ * An x86_64 plt entry is 10 bytes long, init_plt () depends on this.
+ */
+ /* jmpq *<offset>(%rip) */
+ emit_byte (acfg, '\xff');
+ emit_byte (acfg, '\x25');
+ emit_symbol_diff (acfg, "got", ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) -4);
+ /* Used by mono_aot_get_plt_info_offset */
+ emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
+#elif defined(TARGET_ARM)
+ guint8 buf [256];
+ guint8 *code;
-#else /* USE_ELF_RELA */
+ /* FIXME:
+ * - optimize OP_AOTCONST implementation
+ * - optimize the PLT entries
+ * - optimize SWITCH AOT implementation
+ * - implement IMT support
+ */
+ code = buf;
+ if (acfg->use_bin_writer) {
+ /* We only emit 1 relocation since we implement it ourselves anyway */
+ img_writer_emit_reloc (acfg->w, R_ARM_ALU_PC_G0_NC, "got", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)) - 8);
+ /* FIXME: A 2 instruction encoding is sufficient in most cases */
+ ARM_ADD_REG_IMM (code, ARMREG_IP, ARMREG_PC, 0, 0);
+ ARM_ADD_REG_IMM (code, ARMREG_IP, ARMREG_IP, 0, 0);
+ ARM_LDR_IMM (code, ARMREG_PC, ARMREG_IP, 0);
+ emit_bytes (acfg, buf, code - buf);
+ /* FIXME: Get rid of this */
+ emit_symbol_diff (acfg, "got", ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)));
+ /* Used by mono_aot_get_plt_info_offset */
+ emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
+ } else {
+ ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 4);
+ ARM_ADD_REG_REG (code, ARMREG_IP, ARMREG_PC, ARMREG_IP);
+ ARM_LDR_IMM (code, ARMREG_PC, ARMREG_IP, 0);
+ emit_bytes (acfg, buf, code - buf);
+ emit_symbol_diff (acfg, "got", ".", ((acfg->plt_got_offset_base + index) * sizeof (gpointer)));
+ /* Used by mono_aot_get_plt_info_offset */
+ emit_int32 (acfg, acfg->plt_got_info_offsets [index]);
+ }
+#else
+ g_assert_not_reached ();
+#endif
+}
+/*
+ * arch_emit_specific_trampoline:
+ *
+ * Emit code for a specific trampoline. OFFSET is the offset of the first of
+ * two GOT slots which contain the generic trampoline address and the trampoline
+ * argument. TRAMP_SIZE is set to the size of the emitted trampoline.
+ */
static void
-do_reloc (MonoAotCompile *acfg, BinReloc *reloc, guint8 *data, gssize addr)
+arch_emit_specific_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
{
-#ifdef __arm__
/*
- * We use the official ARM relocation types, but implement only the stuff actually
- * needed by the code we generate.
+ * The trampolines created here are variations of the specific
+ * trampolines created in mono_arch_create_specific_trampoline (). The
+ * differences are:
+ * - the generic trampoline address is taken from a got slot.
+ * - the offset of the got slot where the trampoline argument is stored
+ * is embedded in the instruction stream, and the generic trampoline
+ * can load the argument by loading the offset, adding it to the
+ * address of the trampoline to get the address of the got slot, and
+ * loading the argument from there.
+ * - all the trampolines should be of the same length.
*/
- switch (reloc->reloc_type) {
- case R_ARM_CALL: {
- guint32 *code = (guint32*)(gpointer)data;
- guint32 ins = *code;
- int diff = addr;
-
- /* bl */
- g_assert (data [3] == 0xeb);
- if (diff >= 0 && diff <= 33554431) {
- diff >>= 2;
- ins = (ins & 0xff000000) | diff;
- *code = ins;
- } else if (diff <= 0 && diff >= -33554432) {
- diff >>= 2;
- ins = (ins & 0xff000000) | (diff & ~0xff000000);
- *code = ins;
- } else {
- g_assert_not_reached ();
- }
- break;
- }
- case R_ARM_ALU_PC_G0_NC: {
- /* Generated by emit_plt () */
- guint8 *code = data;
- guint32 val = addr;
-
- g_assert (val <= 0xffff);
- ARM_ADD_REG_IMM (code, ARMREG_IP, ARMREG_PC, 0, 0);
- ARM_ADD_REG_IMM (code, ARMREG_IP, ARMREG_IP, (val & 0xFF00) >> 8, 24);
- ARM_LDR_IMM (code, ARMREG_PC, ARMREG_IP, val & 0xFF);
- break;
- }
- default:
- g_assert_not_reached ();
- }
+#if defined(TARGET_AMD64)
+ /* This should be exactly 16 bytes long */
+ *tramp_size = 16;
+ /* call *<offset>(%rip) */
+ emit_byte (acfg, '\x41');
+ emit_byte (acfg, '\xff');
+ emit_byte (acfg, '\x15');
+ emit_symbol_diff (acfg, "got", ".", (offset * sizeof (gpointer)) - 4);
+ /* This should be relative to the start of the trampoline */
+ emit_symbol_diff (acfg, "got", ".", (offset * sizeof (gpointer)) - 4 + 19);
+ emit_zero_bytes (acfg, 5);
+#elif defined(TARGET_ARM)
+ guint8 buf [128];
+ guint8 *code;
+
+ /* This should be exactly 28 bytes long */
+ *tramp_size = 28;
+ code = buf;
+ ARM_PUSH (code, 0x5fff);
+ ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 8);
+ /* Load the value from the GOT */
+ ARM_LDR_REG_REG (code, ARMREG_R1, ARMREG_PC, ARMREG_R1);
+ /* Branch to it */
+ ARM_MOV_REG_REG (code, ARMREG_LR, ARMREG_PC);
+ ARM_MOV_REG_REG (code, ARMREG_PC, ARMREG_R1);
+
+ g_assert (code - buf == 20);
+
+ /* Emit it */
+ emit_bytes (acfg, buf, code - buf);
+ emit_symbol_diff (acfg, "got", ".", (offset * sizeof (gpointer)) - 4 + 8);
+ emit_symbol_diff (acfg, "got", ".", ((offset + 1) * sizeof (gpointer)) - 4 + 8);
#else
g_assert_not_reached ();
#endif
}
-static ElfReloc*
-resolve_relocations (MonoAotCompile *acfg)
+/*
+ * arch_emit_unbox_trampoline:
+ *
+ * Emit code for the unbox trampoline for METHOD used in the full-aot case.
+ * CALL_TARGET is the symbol pointing to the native code of METHOD.
+ */
+static void
+arch_emit_unbox_trampoline (MonoAotCompile *acfg, MonoMethod *method, MonoGenericSharingContext *gsctx, const char *call_target)
{
- BinReloc *reloc;
- guint8 *data;
- gsize end_val, start_val;
- ElfReloc *rr;
- int i;
- gsize vaddr;
-
- rr = g_new0 (ElfReloc, acfg->num_relocs);
- i = 0;
-
- for (reloc = acfg->relocations; reloc; reloc = reloc->next) {
- resolve_reloc (acfg, reloc, &data, &vaddr, &start_val, &end_val);
- /* FIXME: little endian */
- if (reloc->reloc_type) {
- /* Must be static */
- g_assert (start_val > 0);
- do_reloc (acfg, reloc, data, end_val);
- } else {
- data [0] = end_val;
- data [1] = end_val >> 8;
- data [2] = end_val >> 16;
- data [3] = end_val >> 24;
- }
- // FIXME:
- if (start_val == 0 && reloc->val1 [0] != '.') {
- rr [i].r_offset = vaddr;
- rr [i].r_info = R_386_RELATIVE;
- ++i;
- g_assert (i <= acfg->num_relocs);
- }
- }
- return rr;
-}
+#if defined(TARGET_AMD64)
+ guint8 buf [32];
+ guint8 *code;
+ int this_reg;
-#endif /* USE_ELF_RELA */
+ this_reg = mono_arch_get_this_arg_reg (mono_method_signature (method), gsctx, NULL);
+ code = buf;
+ amd64_alu_reg_imm (code, X86_ADD, this_reg, sizeof (MonoObject));
-static int
-bin_writer_emit_writeout (MonoAotCompile *acfg)
-{
- char *outfile_name, *tmp_outfile_name;
- FILE *file;
- ElfHeader header;
- ElfProgHeader progh [3];
- ElfSectHeader secth [SECT_NUM];
-#ifdef USE_ELF_RELA
- ElfRelocA *relocs;
-#else
- ElfReloc *relocs;
-#endif
- ElfStrTable str_table = {NULL, NULL};
- ElfStrTable sh_str_table = {NULL, NULL};
- ElfStrTable dyn_str_table = {NULL, NULL};
- BinSection* all_sections [32];
- BinSection* sections [SECT_NUM];
- ElfSymbol *dynsym;
- ElfSymbol *symtab;
- ElfDynamic dynamic [14];
- int *hash;
- int i, num_sections, file_offset, virt_offset, size, num_symtab;
- int num_local_syms;
-
- g_assert (!acfg->aot_opts.asm_only);
+ emit_bytes (acfg, buf, code - buf);
+ /* jump <method> */
+ emit_byte (acfg, '\xe9');
+ emit_symbol_diff (acfg, call_target, ".", -4);
+#elif defined(TARGET_ARM)
+ guint8 buf [128];
+ guint8 *code;
+ int this_pos = 0;
- if (acfg->aot_opts.outfile)
- outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
- else
- outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
+ code = buf;
- tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
+ if (MONO_TYPE_ISSTRUCT (mono_method_signature (method)->ret))
+ this_pos = 1;
- unlink (tmp_outfile_name);
- file = fopen (tmp_outfile_name, "w");
- g_assert (file);
-
- /* Section headers */
- memset (§h, 0, sizeof (secth));
- memset (&dynamic, 0, sizeof (dynamic));
- memset (&header, 0, sizeof (header));
-
- for (i = 1; i < SECT_NUM; ++i) {
- secth [i].sh_name = str_table_add (&sh_str_table, section_info [i].name);
- secth [i].sh_type = section_info [i].type;
- secth [i].sh_addralign = section_info [i].align;
- secth [i].sh_flags = section_info [i].flags;
- secth [i].sh_entsize = section_info [i].esize;
- }
- secth [SECT_DYNSYM].sh_info = SIZEOF_VOID_P == 4 ? 4 : 2;
- secth [SECT_SYMTAB].sh_info = SIZEOF_VOID_P == 4 ? 20 : 17;
- secth [SECT_HASH].sh_link = SECT_DYNSYM;
- secth [SECT_DYNSYM].sh_link = SECT_DYNSTR;
- secth [SECT_REL_DYN].sh_link = SECT_DYNSYM;
- secth [SECT_RELA_DYN].sh_link = SECT_DYNSYM;
- secth [SECT_DYNAMIC].sh_link = SECT_DYNSTR;
- secth [SECT_SYMTAB].sh_link = SECT_STRTAB;
-
- num_sections = collect_sections (acfg, secth, all_sections, 8);
- hash = build_hash (acfg, num_sections, &dyn_str_table);
- num_symtab = hash [1]; /* FIXME */
- g_print ("num_sections: %d\n", num_sections);
- g_print ("dynsym: %d, dynstr size: %d\n", hash [1], (int)dyn_str_table.data->len);
- for (i = 0; i < num_sections; ++i) {
- g_print ("section %s, size: %d, %x\n", all_sections [i]->name, all_sections [i]->cur_offset, all_sections [i]->cur_offset);
- }
+ ARM_ADD_REG_IMM8 (code, this_pos, this_pos, sizeof (MonoObject));
- /* Associate the bin sections with the ELF sections */
- memset (sections, 0, sizeof (sections));
- for (i = 0; i < num_sections; ++i) {
- BinSection *sect = all_sections [i];
- int j;
+ emit_bytes (acfg, buf, code - buf);
+ /* jump to method */
+ if (acfg->use_bin_writer) {
+ guint8 buf [4];
+ guint8 *code;
- for (j = 0; j < SECT_NUM; ++j) {
- if (strcmp (sect->name, section_info [j].name) == 0) {
- sect->shidx = j;
- break;
- }
- }
+ code = buf;
+ ARM_B (code, 0);
- sections [all_sections [i]->shidx] = sect;
+ img_writer_emit_reloc (acfg->w, R_ARM_JUMP24, call_target, -8);
+ emit_bytes (acfg, buf, 4);
+ } else {
+ fprintf (acfg->fp, "\n\tb %s\n", call_target);
}
-
- /* at this point we know where in the file the first segment sections go */
- dynsym = collect_syms (acfg, hash, &dyn_str_table, NULL, NULL);
- num_local_syms = hash [1];
- symtab = collect_syms (acfg, NULL, &str_table, secth, &num_local_syms);
-
- file_offset = virt_offset = sizeof (header) + sizeof (progh);
- secth [SECT_HASH].sh_addr = secth [SECT_HASH].sh_offset = file_offset;
- size = sizeof (int) * (2 + hash [0] + hash [1]);
- virt_offset = (file_offset += size);
- secth [SECT_HASH].sh_size = size;
- secth [SECT_DYNSYM].sh_addr = secth [SECT_DYNSYM].sh_offset = file_offset;
- size = sizeof (ElfSymbol) * hash [1];
- virt_offset = (file_offset += size);
- secth [SECT_DYNSYM].sh_size = size;
- secth [SECT_DYNSTR].sh_addr = secth [SECT_DYNSTR].sh_offset = file_offset;
- size = dyn_str_table.data->len;
- virt_offset = (file_offset += size);
- secth [SECT_DYNSTR].sh_size = size;
- file_offset += 4-1;
- file_offset &= ~(4-1);
- secth [SECT_REL_DYN].sh_addr = secth [SECT_REL_DYN].sh_offset = file_offset;
-#ifndef USE_ELF_RELA
- size = sizeof (ElfReloc) * acfg->num_relocs;
-#else
- size = 0;
-#endif
- virt_offset = (file_offset += size);
- secth [SECT_REL_DYN].sh_size = size;
- secth [SECT_RELA_DYN].sh_addr = secth [SECT_RELA_DYN].sh_offset = file_offset;
-#ifdef USE_ELF_RELA
- size = sizeof (ElfRelocA) * acfg->num_relocs;
#else
- size = 0;
+ g_assert_not_reached ();
#endif
- virt_offset = (file_offset += size);
- secth [SECT_RELA_DYN].sh_size = size;
-
- file_offset = ALIGN_TO (file_offset, secth [SECT_TEXT].sh_addralign);
- virt_offset = file_offset;
- secth [SECT_TEXT].sh_addr = secth [SECT_TEXT].sh_offset = file_offset;
- if (sections [SECT_TEXT]) {
- size = sections [SECT_TEXT]->cur_offset;
- secth [SECT_TEXT].sh_size = size;
- file_offset += size;
- }
-
- file_offset = ALIGN_TO (file_offset, secth [SECT_DYNAMIC].sh_addralign);
- virt_offset = file_offset;
-
- /* .dynamic, .got.plt, .data, .bss here */
- /* Have to increase the virt offset since these go to a separate segment */
- virt_offset += PAGESIZE;
- secth [SECT_DYNAMIC].sh_addr = virt_offset;
- secth [SECT_DYNAMIC].sh_offset = file_offset;
- size = sizeof (dynamic);
- secth [SECT_DYNAMIC].sh_size = size;
- file_offset += size;
- virt_offset += size;
-
- file_offset = ALIGN_TO (file_offset, secth [SECT_GOT_PLT].sh_addralign);
- virt_offset = ALIGN_TO (virt_offset, secth [SECT_GOT_PLT].sh_addralign);
- secth [SECT_GOT_PLT].sh_addr = virt_offset;
- secth [SECT_GOT_PLT].sh_offset = file_offset;
- size = 12;
- secth [SECT_GOT_PLT].sh_size = size;
- file_offset += size;
- virt_offset += size;
-
- file_offset = ALIGN_TO (file_offset, secth [SECT_DATA].sh_addralign);
- virt_offset = ALIGN_TO (virt_offset, secth [SECT_DATA].sh_addralign);
- secth [SECT_DATA].sh_addr = virt_offset;
- secth [SECT_DATA].sh_offset = file_offset;
- if (sections [SECT_DATA]) {
- size = sections [SECT_DATA]->cur_offset;
- secth [SECT_DATA].sh_size = size;
- file_offset += size;
- virt_offset += size;
- }
+}
- file_offset = ALIGN_TO (file_offset, secth [SECT_BSS].sh_addralign);
- virt_offset = ALIGN_TO (virt_offset, secth [SECT_BSS].sh_addralign);
- secth [SECT_BSS].sh_addr = virt_offset;
- secth [SECT_BSS].sh_offset = file_offset;
- if (sections [SECT_BSS]) {
- size = sections [SECT_BSS]->cur_offset;
- secth [SECT_BSS].sh_size = size;
- }
+/*
+ * arch_emit_static_rgctx_trampoline:
+ *
+ * Emit code for a static rgctx trampoline. OFFSET is the offset of the first of
+ * two GOT slots which contain the rgctx argument, and the method to jump to.
+ * TRAMP_SIZE is set to the size of the emitted trampoline.
+ * These kinds of trampolines cannot be enumerated statically, since there could
+ * be one trampoline per method instantiation, so we emit the same code for all
+ * trampolines, and parameterize them using two GOT slots.
+ */
+static void
+arch_emit_static_rgctx_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
+{
+#if defined(TARGET_AMD64)
+ /* This should be exactly 13 bytes long */
+ *tramp_size = 13;
+
+ /* mov <OFFSET>(%rip), %r10 */
+ emit_byte (acfg, '\x4d');
+ emit_byte (acfg, '\x8b');
+ emit_byte (acfg, '\x15');
+ emit_symbol_diff (acfg, "got", ".", (offset * sizeof (gpointer)) - 4);
+
+ /* jmp *<offset>(%rip) */
+ emit_byte (acfg, '\xff');
+ emit_byte (acfg, '\x25');
+ emit_symbol_diff (acfg, "got", ".", ((offset + 1) * sizeof (gpointer)) - 4);
+#elif defined(TARGET_ARM)
+ guint8 buf [128];
+ guint8 *code;
- /* virtual doesn't matter anymore */
- file_offset = ALIGN_TO (file_offset, secth [SECT_DEBUG_FRAME].sh_addralign);
- secth [SECT_DEBUG_FRAME].sh_offset = file_offset;
- if (sections [SECT_DEBUG_FRAME])
- size = sections [SECT_DEBUG_FRAME]->cur_offset;
- else
- size = 0;
- secth [SECT_DEBUG_FRAME].sh_size = size;
- file_offset += size;
-
- secth [SECT_DEBUG_INFO].sh_offset = file_offset;
- if (sections [SECT_DEBUG_INFO])
- size = sections [SECT_DEBUG_INFO]->cur_offset;
- else
- size = 0;
- secth [SECT_DEBUG_INFO].sh_size = size;
- file_offset += size;
-
- secth [SECT_DEBUG_ABBREV].sh_offset = file_offset;
- if (sections [SECT_DEBUG_ABBREV])
- size = sections [SECT_DEBUG_ABBREV]->cur_offset;
- else
- size = 0;
- secth [SECT_DEBUG_ABBREV].sh_size = size;
- file_offset += size;
-
- secth [SECT_DEBUG_LINE].sh_offset = file_offset;
- if (sections [SECT_DEBUG_LINE])
- size = sections [SECT_DEBUG_LINE]->cur_offset;
- else
- size = 0;
- secth [SECT_DEBUG_LINE].sh_size = size;
- file_offset += size;
-
- secth [SECT_DEBUG_LOC].sh_offset = file_offset;
- if (sections [SECT_DEBUG_LOC])
- size = sections [SECT_DEBUG_LOC]->cur_offset;
- else
- size = 0;
- secth [SECT_DEBUG_LOC].sh_size = size;
- file_offset += size;
-
- file_offset = ALIGN_TO (file_offset, secth [SECT_SHSTRTAB].sh_addralign);
- secth [SECT_SHSTRTAB].sh_offset = file_offset;
- size = sh_str_table.data->len;
- secth [SECT_SHSTRTAB].sh_size = size;
- file_offset += size;
-
- file_offset = ALIGN_TO (file_offset, secth [SECT_SYMTAB].sh_addralign);
- secth [SECT_SYMTAB].sh_offset = file_offset;
- size = sizeof (ElfSymbol) * num_local_syms;
- secth [SECT_SYMTAB].sh_size = size;
- file_offset += size;
-
- file_offset = ALIGN_TO (file_offset, secth [SECT_STRTAB].sh_addralign);
- secth [SECT_STRTAB].sh_offset = file_offset;
- size = str_table.data->len;
- secth [SECT_STRTAB].sh_size = size;
- file_offset += size;
-
- file_offset += 4-1;
- file_offset &= ~(4-1);
-
- header.e_ident [EI_MAG0] = ELFMAG0;
- header.e_ident [EI_MAG1] = ELFMAG1;
- header.e_ident [EI_MAG2] = ELFMAG2;
- header.e_ident [EI_MAG3] = ELFMAG3;
- header.e_ident [EI_CLASS] = SIZEOF_VOID_P == 4 ? ELFCLASS32 : ELFCLASS64;
- header.e_ident [EI_DATA] = ELFDATA2LSB;
- header.e_ident [EI_VERSION] = EV_CURRENT;
- header.e_ident [EI_OSABI] = ELFOSABI_NONE;
- header.e_ident [EI_ABIVERSION] = 0;
- for (i = EI_PAD; i < EI_NIDENT; ++i)
- header.e_ident [i] = 0;
-
- header.e_type = ET_DYN;
-#if defined(__i386__)
- header.e_machine = EM_386;
-#elif defined(__x86_64__)
- header.e_machine = EM_X86_64;
-#elif defined(__arm__)
- header.e_machine = EM_ARM;
+ /* This should be exactly 24 bytes long */
+ *tramp_size = 24;
+ code = buf;
+ /* Load rgctx value */
+ ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 8);
+ ARM_LDR_REG_REG (code, MONO_ARCH_RGCTX_REG, ARMREG_PC, ARMREG_R1);
+ /* Load branch addr + branch */
+ ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 4);
+ ARM_LDR_REG_REG (code, ARMREG_PC, ARMREG_PC, ARMREG_R1);
+
+ g_assert (code - buf == 16);
+
+ /* Emit it */
+ emit_bytes (acfg, buf, code - buf);
+ emit_symbol_diff (acfg, "got", ".", (offset * sizeof (gpointer)) - 4 + 8);
+ emit_symbol_diff (acfg, "got", ".", ((offset + 1) * sizeof (gpointer)) - 4 + 4);
#else
g_assert_not_reached ();
#endif
- header.e_version = 1;
-
- header.e_phoff = sizeof (header);
- header.e_ehsize = sizeof (header);
- header.e_phentsize = sizeof (ElfProgHeader);
- header.e_phnum = 3;
- header.e_entry = secth [SECT_TEXT].sh_addr;
- header.e_shstrndx = SECT_SHSTRTAB;
- header.e_shentsize = sizeof (ElfSectHeader);
- header.e_shnum = SECT_NUM;
- header.e_shoff = file_offset;
-
- /* dynamic data */
- i = 0;
- dynamic [i].d_tag = DT_HASH;
- dynamic [i].d_un.d_val = secth [SECT_HASH].sh_offset;
- ++i;
- dynamic [i].d_tag = DT_STRTAB;
- dynamic [i].d_un.d_val = secth [SECT_DYNSTR].sh_offset;
- ++i;
- dynamic [i].d_tag = DT_SYMTAB;
- dynamic [i].d_un.d_val = secth [SECT_DYNSYM].sh_offset;
- ++i;
- dynamic [i].d_tag = DT_STRSZ;
- dynamic [i].d_un.d_val = dyn_str_table.data->len;
- ++i;
- dynamic [i].d_tag = DT_SYMENT;
- dynamic [i].d_un.d_val = sizeof (ElfSymbol);
- ++i;
-#ifdef USE_ELF_RELA
- dynamic [i].d_tag = DT_RELA;
- dynamic [i].d_un.d_val = secth [SECT_RELA_DYN].sh_offset;
- ++i;
- dynamic [i].d_tag = DT_RELASZ;
- dynamic [i].d_un.d_val = secth [SECT_RELA_DYN].sh_size;
- ++i;
- dynamic [i].d_tag = DT_RELAENT;
- dynamic [i].d_un.d_val = sizeof (ElfRelocA);
- ++i;
-#else
- dynamic [i].d_tag = DT_REL;
- dynamic [i].d_un.d_val = secth [SECT_REL_DYN].sh_offset;
- ++i;
- dynamic [i].d_tag = DT_RELSZ;
- dynamic [i].d_un.d_val = secth [SECT_REL_DYN].sh_size;
- ++i;
- dynamic [i].d_tag = DT_RELENT;
- dynamic [i].d_un.d_val = sizeof (ElfReloc);
- ++i;
-#endif
- dynamic [i].d_tag = DT_RELCOUNT;
- dynamic [i].d_un.d_val = acfg->num_relocs;
- ++i;
-
- /* Program header */
- memset (&progh, 0, sizeof (progh));
- progh [0].p_type = PT_LOAD;
- progh [0].p_filesz = progh [0].p_memsz = secth [SECT_DYNAMIC].sh_offset;
- progh [0].p_align = 4096;
- progh [0].p_flags = 5;
-
- progh [1].p_type = PT_LOAD;
- progh [1].p_offset = secth [SECT_DYNAMIC].sh_offset;
- progh [1].p_vaddr = progh [1].p_paddr = secth [SECT_DYNAMIC].sh_addr;
- progh [1].p_filesz = secth [SECT_BSS].sh_offset - secth [SECT_DYNAMIC].sh_offset;
- progh [1].p_memsz = secth [SECT_BSS].sh_addr + secth [SECT_BSS].sh_size - secth [SECT_DYNAMIC].sh_addr;
- progh [1].p_align = 4096;
- progh [1].p_flags = 6;
-
- progh [2].p_type = PT_DYNAMIC;
- progh [2].p_offset = secth [SECT_DYNAMIC].sh_offset;
- progh [2].p_vaddr = progh [2].p_paddr = secth [SECT_DYNAMIC].sh_addr;
- progh [2].p_filesz = progh [2].p_memsz = secth [SECT_DYNAMIC].sh_size;
- progh [2].p_align = SIZEOF_VOID_P;
- progh [2].p_flags = 6;
-
- /* Compute the addresses of the bin sections, so relocation can be done */
- for (i = 0; i < SECT_NUM; ++i) {
- if (sections [i]) {
- sections [i]->file_offset = secth [i].sh_offset;
- sections [i]->virt_offset = secth [i].sh_addr;
- }
- }
-
- reloc_symbols (acfg, dynsym, secth, &dyn_str_table, TRUE);
- reloc_symbols (acfg, symtab, secth, &str_table, FALSE);
- relocs = resolve_relocations (acfg);
-
- fwrite (&header, sizeof (header), 1, file);
- fwrite (&progh, sizeof (progh), 1, file);
- fwrite (hash, sizeof (int) * (hash [0] + hash [1] + 2), 1, file);
- fwrite (dynsym, sizeof (ElfSymbol) * hash [1], 1, file);
- fwrite (dyn_str_table.data->str, dyn_str_table.data->len, 1, file);
- /* .rel.dyn */
- fseek (file, secth [SECT_REL_DYN].sh_offset, SEEK_SET);
- fwrite (relocs, sizeof (ElfReloc), acfg->num_relocs, file);
-
- /* .rela.dyn */
- fseek (file, secth [SECT_RELA_DYN].sh_offset, SEEK_SET);
- fwrite (relocs, secth [SECT_RELA_DYN].sh_size, 1, file);
-
- /* .text */
- if (sections [SECT_TEXT]) {
- fseek (file, secth [SECT_TEXT].sh_offset, SEEK_SET);
- fwrite (sections [SECT_TEXT]->data, sections [SECT_TEXT]->cur_offset, 1, file);
- }
- /* .dynamic */
- fwrite (dynamic, sizeof (dynamic), 1, file);
+}
- /* .got.plt */
- size = secth [SECT_DYNAMIC].sh_addr;
- fwrite (&size, sizeof (size), 1, file);
+/*
+ * arch_emit_imt_thunk:
+ *
+ * Emit an IMT thunk usable in full-aot mode. The thunk uses 1 got slot which
+ * points to an array of pointer pairs. The pairs of the form [key, ptr], where
+ * key is the IMT key, and ptr holds the address of a memory location holding
+ * the address to branch to if the IMT arg matches the key. The array is
+ * terminated by a pair whose key is NULL, and whose ptr is the address of the
+ * fail_tramp.
+ * TRAMP_SIZE is set to the size of the emitted trampoline.
+ */
+static void
+arch_emit_imt_thunk (MonoAotCompile *acfg, int offset, int *tramp_size)
+{
+#if defined(TARGET_AMD64)
+ guint8 *buf, *code;
+ guint8 *labels [3];
- /* .data */
- if (sections [SECT_DATA]) {
- fseek (file, secth [SECT_DATA].sh_offset, SEEK_SET);
- fwrite (sections [SECT_DATA]->data, sections [SECT_DATA]->cur_offset, 1, file);
- }
+ code = buf = g_malloc (256);
- fseek (file, secth [SECT_DEBUG_FRAME].sh_offset, SEEK_SET);
- if (sections [SECT_DEBUG_FRAME])
- fwrite (sections [SECT_DEBUG_FRAME]->data, sections [SECT_DEBUG_FRAME]->cur_offset, 1, file);
- fseek (file, secth [SECT_DEBUG_INFO].sh_offset, SEEK_SET);
- if (sections [SECT_DEBUG_INFO])
- fwrite (sections [SECT_DEBUG_INFO]->data, sections [SECT_DEBUG_INFO]->cur_offset, 1, file);
- fseek (file, secth [SECT_DEBUG_ABBREV].sh_offset, SEEK_SET);
- if (sections [SECT_DEBUG_ABBREV])
- fwrite (sections [SECT_DEBUG_ABBREV]->data, sections [SECT_DEBUG_ABBREV]->cur_offset, 1, file);
- fseek (file, secth [SECT_DEBUG_LINE].sh_offset, SEEK_SET);
- if (sections [SECT_DEBUG_LINE])
- fwrite (sections [SECT_DEBUG_LINE]->data, sections [SECT_DEBUG_LINE]->cur_offset, 1, file);
- fseek (file, secth [SECT_DEBUG_LINE].sh_offset, SEEK_SET);
- if (sections [SECT_DEBUG_LOC])
- fwrite (sections [SECT_DEBUG_LOC]->data, sections [SECT_DEBUG_LOC]->cur_offset, 1, file);
- fseek (file, secth [SECT_SHSTRTAB].sh_offset, SEEK_SET);
- fwrite (sh_str_table.data->str, sh_str_table.data->len, 1, file);
- fseek (file, secth [SECT_SYMTAB].sh_offset, SEEK_SET);
- fwrite (symtab, sizeof (ElfSymbol) * num_local_syms, 1, file);
- fseek (file, secth [SECT_STRTAB].sh_offset, SEEK_SET);
- fwrite (str_table.data->str, str_table.data->len, 1, file);
- /*g_print ("file_offset %d vs %d\n", file_offset, ftell (file));*/
- /*g_assert (file_offset >= ftell (file));*/
- fseek (file, file_offset, SEEK_SET);
- fwrite (§h, sizeof (secth), 1, file);
- fclose (file);
- rename (tmp_outfile_name, outfile_name);
+ /* FIXME: Optimize this, i.e. use binary search etc. */
+ /* Maybe move the body into a separate function (slower, but much smaller) */
- g_free (tmp_outfile_name);
- g_free (outfile_name);
+ /* R10 is a free register */
- return 0;
-}
+ labels [0] = code;
+ amd64_alu_membase_imm (code, X86_CMP, AMD64_R10, 0, 0);
+ labels [1] = code;
+ amd64_branch8 (code, X86_CC_Z, FALSE, 0);
-#endif /* USE_ELF_WRITER */
+ /* Check key */
+ amd64_alu_membase_reg (code, X86_CMP, AMD64_R10, 0, MONO_ARCH_IMT_REG);
+ labels [2] = code;
+ amd64_branch8 (code, X86_CC_Z, FALSE, 0);
-#endif /* USE_BIN_WRITER */
+ /* Loop footer */
+ amd64_alu_reg_imm (code, X86_ADD, AMD64_R10, 2 * sizeof (gpointer));
+ amd64_jump_code (code, labels [0]);
-/* ASM WRITER */
+ /* Match */
+ mono_amd64_patch (labels [2], code);
+ amd64_mov_reg_membase (code, AMD64_R10, AMD64_R10, sizeof (gpointer), 8);
+ amd64_jump_membase (code, AMD64_R10, 0);
-static void
-asm_writer_emit_start (MonoAotCompile *acfg)
-{
- if (acfg->aot_opts.asm_only) {
- if (acfg->aot_opts.outfile)
- acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
- else
- acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
- acfg->fp = fopen (acfg->tmpfname, "w+");
- } else {
- int i = g_file_open_tmp ("mono_aot_XXXXXX", &acfg->tmpfname, NULL);
- acfg->fp = fdopen (i, "w+");
- }
- g_assert (acfg->fp);
-}
+ /* No match */
+ /* FIXME: */
+ mono_amd64_patch (labels [1], code);
+ x86_breakpoint (code);
-static void
-asm_writer_emit_unset_mode (MonoAotCompile *acfg)
-{
- if (acfg->mode == EMIT_NONE)
- return;
- fprintf (acfg->fp, "\n");
- acfg->mode = EMIT_NONE;
-}
+ /* mov <OFFSET>(%rip), %r10 */
+ emit_byte (acfg, '\x4d');
+ emit_byte (acfg, '\x8b');
+ emit_byte (acfg, '\x15');
+ emit_symbol_diff (acfg, "got", ".", (offset * sizeof (gpointer)) - 4);
-static void
-asm_writer_emit_section_change (MonoAotCompile *acfg, const char *section_name, int subsection_index)
-{
- asm_writer_emit_unset_mode (acfg);
-#if defined(PLATFORM_WIN32)
- fprintf (acfg->fp, ".section %s\n", section_name);
-#elif defined(__MACH__)
- if (strcmp(section_name, ".bss") == 0)
- fprintf (acfg->fp, "%s\n", ".data");
- else
- fprintf (acfg->fp, "%s\n", section_name);
-#elif defined(sparc)
- /* For solaris as, GNU as should accept the same */
- fprintf (acfg->fp, ".section \"%s\"\n", section_name);
+ emit_bytes (acfg, buf, code - buf);
+
+ *tramp_size = code - buf + 7;
+#elif defined(TARGET_ARM)
+ guint8 buf [128];
+ guint8 *code, *code2, *labels [16];
+
+ code = buf;
+
+ /* The IMT method is in v5 */
+
+ /* Only IP is available, but we need at least two free registers */
+ ARM_PUSH1 (code, ARMREG_R1);
+ labels [0] = code;
+ /* Load the parameter from the GOT */
+ ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 0);
+ ARM_LDR_REG_REG (code, ARMREG_IP, ARMREG_PC, ARMREG_IP);
+
+ labels [1] = code;
+ ARM_LDR_IMM (code, ARMREG_R1, ARMREG_IP, 0);
+ ARM_CMP_REG_REG (code, ARMREG_R1, ARMREG_V5);
+ labels [2] = code;
+ ARM_B_COND (code, ARMCOND_EQ, 0);
+
+ /* End-of-loop check */
+ ARM_CMP_REG_IMM (code, ARMREG_R1, 0, 0);
+ labels [3] = code;
+ ARM_B_COND (code, ARMCOND_EQ, 0);
+
+ /* Loop footer */
+ ARM_ADD_REG_IMM8 (code, ARMREG_IP, ARMREG_IP, sizeof (gpointer) * 2);
+ labels [4] = code;
+ ARM_B (code, 0);
+ arm_patch (labels [4], labels [1]);
+
+ /* Match */
+ arm_patch (labels [2], code);
+ ARM_POP1 (code, ARMREG_R1);
+ ARM_LDR_IMM (code, ARMREG_IP, ARMREG_IP, 4);
+ ARM_LDR_IMM (code, ARMREG_PC, ARMREG_IP, 0);
+
+ /* No match */
+ arm_patch (labels [3], code);
+ ARM_DBRK (code);
+
+ /* Fixup offset */
+ code2 = labels [0];
+ ARM_LDR_IMM (code2, ARMREG_IP, ARMREG_PC, (code - (labels [0] + 8)));
+
+ emit_bytes (acfg, buf, code - buf);
+ emit_symbol_diff (acfg, "got", ".", (offset * sizeof (gpointer)) + (code - (labels [0] + 8)) - 4);
+
+ *tramp_size = code - buf + 4;
#else
- if (!strcmp (section_name, ".text") || !strcmp (section_name, ".data") || !strcmp (section_name, ".bss")) {
- fprintf (acfg->fp, "%s %d\n", section_name, subsection_index);
- } else {
- fprintf (acfg->fp, ".section \"%s\"\n", section_name);
- fprintf (acfg->fp, ".subsection %d\n", subsection_index);
- }
+ g_assert_not_reached ();
#endif
}
-static void
-asm_writer_emit_symbol_type (MonoAotCompile *acfg, const char *name, gboolean func)
+/*
+ * arch_get_cie_program:
+ *
+ * Get the unwind bytecode for the DWARF CIE.
+ */
+static GSList*
+arch_get_cie_program (void)
{
- const char *stype;
-
- if (func)
- stype = "function";
- else
- stype = "object";
-
- asm_writer_emit_unset_mode (acfg);
-#if defined(__MACH__)
+#ifdef TARGET_AMD64
+ GSList *l = NULL;
-#elif defined(sparc) || defined(__arm__)
- fprintf (acfg->fp, "\t.type %s,#%s\n", name, stype);
-#elif defined(PLATFORM_WIN32)
+ mono_add_unwind_op_def_cfa (l, (guint8*)NULL, (guint8*)NULL, AMD64_RSP, 8);
+ mono_add_unwind_op_offset (l, (guint8*)NULL, (guint8*)NULL, AMD64_RIP, -8);
-#elif defined(__x86_64__) || defined(__i386__)
- fprintf (acfg->fp, "\t.type %s,@%s\n", name, stype);
+ return l;
#else
- fprintf (acfg->fp, "\t.type %s,@%s\n", name, stype);
+ return NULL;
#endif
}
-static void
-asm_writer_emit_global_inner (MonoAotCompile *acfg, const char *name, gboolean func)
+/* END OF ARCH SPECIFIC CODE */
+
+static guint32
+mono_get_field_token (MonoClassField *field)
{
- asm_writer_emit_unset_mode (acfg);
-#if (defined(__ppc__) && defined(__MACH__)) || defined(PLATFORM_WIN32)
- // mach-o always uses a '_' prefix.
- fprintf (acfg->fp, "\t.globl _%s\n", name);
-#else
- fprintf (acfg->fp, "\t.globl %s\n", name);
-#endif
+ MonoClass *klass = field->parent;
+ int i;
+
+ for (i = 0; i < klass->field.count; ++i) {
+ if (field == &klass->fields [i])
+ return MONO_TOKEN_FIELD_DEF | (klass->field.first + 1 + i);
+ }
- asm_writer_emit_symbol_type (acfg, name, func);
+ g_assert_not_reached ();
+ return 0;
}
-static void
-asm_writer_emit_local_symbol (MonoAotCompile *acfg, const char *name, const char *end_label, gboolean func)
+static inline void
+encode_value (gint32 value, guint8 *buf, guint8 **endbuf)
{
- asm_writer_emit_unset_mode (acfg);
+ guint8 *p = buf;
- fprintf (acfg->fp, "\t.local %s\n", name);
+ //printf ("ENCODE: %d 0x%x.\n", value, value);
- asm_writer_emit_symbol_type (acfg, name, func);
+ /*
+ * Same encoding as the one used in the metadata, extended to handle values
+ * greater than 0x1fffffff.
+ */
+ if ((value >= 0) && (value <= 127))
+ *p++ = value;
+ else if ((value >= 0) && (value <= 16383)) {
+ p [0] = 0x80 | (value >> 8);
+ p [1] = value & 0xff;
+ p += 2;
+ } else if ((value >= 0) && (value <= 0x1fffffff)) {
+ p [0] = (value >> 24) | 0xc0;
+ p [1] = (value >> 16) & 0xff;
+ p [2] = (value >> 8) & 0xff;
+ p [3] = value & 0xff;
+ p += 4;
+ }
+ else {
+ p [0] = 0xff;
+ p [1] = (value >> 24) & 0xff;
+ p [2] = (value >> 16) & 0xff;
+ p [3] = (value >> 8) & 0xff;
+ p [4] = value & 0xff;
+ p += 5;
+ }
+ if (endbuf)
+ *endbuf = p;
}
-static void
-asm_writer_emit_label (MonoAotCompile *acfg, const char *name)
+static guint32
+get_image_index (MonoAotCompile *cfg, MonoImage *image)
{
- asm_writer_emit_unset_mode (acfg);
-#if (defined(__ppc__) && defined(__MACH__)) || defined(PLATFORM_WIN32)
- // mach-o always uses a '_' prefix.
- fprintf (acfg->fp, "_%s:\n", name);
-#else
- fprintf (acfg->fp, "%s:\n", name);
-#endif
+ guint32 index;
-#if defined(PLATFORM_WIN32)
- /* Emit a normal label too */
- fprintf (acfg->fp, "%s:\n", name);
-#endif
+ index = GPOINTER_TO_UINT (g_hash_table_lookup (cfg->image_hash, image));
+ if (index)
+ return index - 1;
+ else {
+ index = g_hash_table_size (cfg->image_hash);
+ g_hash_table_insert (cfg->image_hash, image, GUINT_TO_POINTER (index + 1));
+ g_ptr_array_add (cfg->image_table, image);
+ return index;
+ }
}
-static void
-asm_writer_emit_string (MonoAotCompile *acfg, const char *value)
+static guint32
+find_typespec_for_class (MonoAotCompile *acfg, MonoClass *klass)
{
- asm_writer_emit_unset_mode (acfg);
- fprintf (acfg->fp, "\t%s \"%s\"\n", AS_STRING_DIRECTIVE, value);
-}
+ int i;
+ MonoClass *k = NULL;
-static void
-asm_writer_emit_line (MonoAotCompile *acfg)
-{
- asm_writer_emit_unset_mode (acfg);
- fprintf (acfg->fp, "\n");
-}
+ /* FIXME: Search referenced images as well */
+ for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
+ k = mono_class_get_full (acfg->image, MONO_TOKEN_TYPE_SPEC | (i + 1), NULL);
+ if (k == klass)
+ break;
+ }
-static void
-asm_writer_emit_alignment (MonoAotCompile *acfg, int size)
-{
- asm_writer_emit_unset_mode (acfg);
-#if defined(__arm__)
- fprintf (acfg->fp, "\t.align %d\n", ilog2 (size));
-#elif defined(__ppc__) && defined(__MACH__)
- // the mach-o assembler specifies alignments as powers of 2.
- fprintf (acfg->fp, "\t.align %d\t; ilog2\n", ilog2(size));
-#elif defined(__powerpc__)
- /* ignore on linux/ppc */
-#else
- fprintf (acfg->fp, "\t.align %d\n", size);
-#endif
+ if (i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows)
+ return MONO_TOKEN_TYPE_SPEC | (i + 1);
+ else
+ return 0;
}
static void
-asm_writer_emit_pointer_unaligned (MonoAotCompile *acfg, const char *target)
-{
- asm_writer_emit_unset_mode (acfg);
- asm_writer_emit_alignment (acfg, sizeof (gpointer));
-#if defined(__x86_64__)
- fprintf (acfg->fp, "\t.quad %s\n", target ? target : "0");
-#elif defined(sparc) && SIZEOF_VOID_P == 8
- fprintf (acfg->fp, "\t.xword %s\n", target ? target : "0");
-#else
- fprintf (acfg->fp, "\t.long %s\n", target ? target : "0");
-#endif
-}
-
-static void
-asm_writer_emit_pointer (MonoAotCompile *acfg, const char *target)
-{
- asm_writer_emit_unset_mode (acfg);
- asm_writer_emit_alignment (acfg, sizeof (gpointer));
- asm_writer_emit_pointer_unaligned (acfg, target);
-}
-
-static char *byte_to_str;
+encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf);
+/*
+ * encode_klass_ref:
+ *
+ * Encode a reference to KLASS. We use our home-grown encoding instead of the
+ * standard metadata encoding.
+ */
static void
-asm_writer_emit_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
+encode_klass_ref (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf)
{
- int i;
- if (acfg->mode != EMIT_BYTE) {
- acfg->mode = EMIT_BYTE;
- acfg->col_count = 0;
- }
+ guint8 *p = buf;
+
+ if (klass->generic_class) {
+ guint32 token;
+ g_assert (klass->type_token);
+
+ /* Find a typespec for a class if possible */
+ token = find_typespec_for_class (acfg, klass);
+ if (token) {
+ encode_value (token, p, &p);
+ encode_value (get_image_index (acfg, acfg->image), p, &p);
+ } else {
+ MonoClass *gclass = klass->generic_class->container_class;
+ MonoGenericInst *inst = klass->generic_class->context.class_inst;
+ int i;
- if (byte_to_str == NULL) {
- byte_to_str = g_new0 (char, 256 * 8);
- for (i = 0; i < 256; ++i) {
- sprintf (byte_to_str + (i * 8), ",%d", i);
+ /* Encode it ourselves */
+ /* Marker */
+ encode_value (MONO_TOKEN_TYPE_SPEC, p, &p);
+ encode_value (MONO_TYPE_GENERICINST, p, &p);
+ encode_klass_ref (acfg, gclass, p, &p);
+ encode_value (inst->type_argc, p, &p);
+ for (i = 0; i < inst->type_argc; ++i)
+ encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
}
- }
+ } else if (klass->type_token) {
+ g_assert (mono_metadata_token_code (klass->type_token) == MONO_TOKEN_TYPE_DEF);
+ encode_value (klass->type_token - MONO_TOKEN_TYPE_DEF, p, &p);
+ encode_value (get_image_index (acfg, klass->image), p, &p);
+ } else if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) {
+ MonoGenericContainer *container = mono_type_get_generic_param_owner (&klass->byval_arg);
+ g_assert (container);
+
+ /* Marker */
+ encode_value (MONO_TOKEN_TYPE_SPEC, p, &p);
+ encode_value (klass->byval_arg.type, p, &p);
- for (i = 0; i < size; ++i, ++acfg->col_count) {
- if ((acfg->col_count % 32) == 0)
- fprintf (acfg->fp, "\n\t.byte %d", buf [i]);
+ encode_value (mono_type_get_generic_param_num (&klass->byval_arg), p, &p);
+
+ encode_value (container->is_method, p, &p);
+ if (container->is_method)
+ encode_method_ref (acfg, container->owner.method, p, &p);
else
- fputs (byte_to_str + (buf [i] * 8), acfg->fp);
+ encode_klass_ref (acfg, container->owner.klass, p, &p);
+ } else {
+ /* Array class */
+ g_assert (klass->rank > 0);
+ encode_value (MONO_TOKEN_TYPE_DEF, p, &p);
+ encode_value (get_image_index (acfg, klass->image), p, &p);
+ encode_value (klass->rank, p, &p);
+ encode_klass_ref (acfg, klass->element_class, p, &p);
}
+ *endbuf = p;
}
-static inline void
-asm_writer_emit_int16 (MonoAotCompile *acfg, int value)
+static void
+encode_field_info (MonoAotCompile *cfg, MonoClassField *field, guint8 *buf, guint8 **endbuf)
{
- if (acfg->mode != EMIT_WORD) {
- acfg->mode = EMIT_WORD;
- acfg->col_count = 0;
- }
- if ((acfg->col_count++ % 8) == 0)
-#if defined(__MACH__)
- fprintf (acfg->fp, "\n\t.short ");
-#elif defined(__arm__)
- /* FIXME: Use .hword on other archs as well */
- fprintf (acfg->fp, "\n\t.hword ");
-#else
- fprintf (acfg->fp, "\n\t.word ");
-#endif
- else
- fprintf (acfg->fp, ", ");
- fprintf (acfg->fp, "%d", value);
-}
+ guint32 token = mono_get_field_token (field);
+ guint8 *p = buf;
-static inline void
-asm_writer_emit_int32 (MonoAotCompile *acfg, int value)
-{
- if (acfg->mode != EMIT_LONG) {
- acfg->mode = EMIT_LONG;
- acfg->col_count = 0;
- }
- if ((acfg->col_count++ % 8) == 0)
- fprintf (acfg->fp, "\n\t.long ");
- else
- fprintf (acfg->fp, ",");
- fprintf (acfg->fp, "%d", value);
+ encode_klass_ref (cfg, field->parent, p, &p);
+ g_assert (mono_metadata_token_code (token) == MONO_TOKEN_FIELD_DEF);
+ encode_value (token - MONO_TOKEN_FIELD_DEF, p, &p);
+ *endbuf = p;
}
static void
-asm_writer_emit_symbol_diff (MonoAotCompile *acfg, const char *end, const char* start, int offset)
+encode_generic_context (MonoAotCompile *acfg, MonoGenericContext *context, guint8 *buf, guint8 **endbuf)
{
- if (acfg->mode != EMIT_LONG) {
- acfg->mode = EMIT_LONG;
- acfg->col_count = 0;
+ guint8 *p = buf;
+ int i;
+ MonoGenericInst *inst;
+
+ /* Encode the context */
+ inst = context->class_inst;
+ encode_value (inst ? 1 : 0, p, &p);
+ if (inst) {
+ encode_value (inst->type_argc, p, &p);
+ for (i = 0; i < inst->type_argc; ++i)
+ encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
+ }
+ inst = context->method_inst;
+ encode_value (inst ? 1 : 0, p, &p);
+ if (inst) {
+ encode_value (inst->type_argc, p, &p);
+ for (i = 0; i < inst->type_argc; ++i)
+ encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
}
- if ((acfg->col_count++ % 8) == 0)
- fprintf (acfg->fp, "\n\t.long ");
- else
- fprintf (acfg->fp, ",");
- if (offset > 0)
- fprintf (acfg->fp, "%s - %s + %d", end, start, offset);
- else if (offset < 0)
- fprintf (acfg->fp, "%s - %s %d", end, start, offset);
- else
- fprintf (acfg->fp, "%s - %s", end, start);
-}
-static void
-asm_writer_emit_zero_bytes (MonoAotCompile *acfg, int num)
-{
- asm_writer_emit_unset_mode (acfg);
-#if defined(__MACH__)
- fprintf (acfg->fp, "\t.space %d\n", num);
-#else
- fprintf (acfg->fp, "\t.skip %d\n", num);
-#endif
+ *endbuf = p;
}
-static int
-asm_writer_emit_writeout (MonoAotCompile *acfg)
+#define MAX_IMAGE_INDEX 250
+
+static void
+encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf)
{
- char *command, *objfile;
- char *outfile_name, *tmp_outfile_name;
+ guint32 image_index = get_image_index (acfg, method->klass->image);
+ guint32 token = method->token;
+ MonoJumpInfoToken *ji;
+ guint8 *p = buf;
+ char *name;
- fclose (acfg->fp);
+ /*
+ * The encoding for most methods is as follows:
+ * - image index encoded as a leb128
+ * - token index encoded as a leb128
+ * Values of image index >= MONO_AOT_METHODREF_MIN are used to mark additional
+ * types of method encodings.
+ */
-#if defined(__x86_64__)
-#define AS_OPTIONS "--64"
-#elif defined(sparc) && SIZEOF_VOID_P == 8
-#define AS_OPTIONS "-xarch=v9"
-#else
-#define AS_OPTIONS ""
-#endif
+ g_assert (image_index < MONO_AOT_METHODREF_MIN);
- if (acfg->aot_opts.asm_only) {
- printf ("Output file: '%s'.\n", acfg->tmpfname);
- if (acfg->aot_opts.static_link)
- printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
- return 0;
- }
+ /* Mark methods which can't use aot trampolines because they need the further
+ * processing in mono_magic_trampoline () which requires a MonoMethod*.
+ */
+ if ((method->is_generic && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) ||
+ (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED))
+ encode_value ((MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE << 24), p, &p);
- if (acfg->aot_opts.static_link) {
- if (acfg->aot_opts.outfile)
- objfile = g_strdup_printf ("%s", acfg->aot_opts.outfile);
- else
- objfile = g_strdup_printf ("%s.o", acfg->image->name);
- } else {
- objfile = g_strdup_printf ("%s.o", acfg->tmpfname);
- }
- command = g_strdup_printf ("as %s %s -o %s", AS_OPTIONS, acfg->tmpfname, objfile);
- printf ("Executing the native assembler: %s\n", command);
- if (system (command) != 0) {
- g_free (command);
- g_free (objfile);
- return 1;
+ /*
+ * Some wrapper methods are shared using their signature, encode their
+ * stringified signature instead.
+ * FIXME: Optimize disk usage
+ */
+ name = NULL;
+ if (method->wrapper_type) {
+ if (method->wrapper_type == MONO_WRAPPER_RUNTIME_INVOKE) {
+ char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
+ name = g_strdup_printf ("(wrapper runtime-invoke):%s (%s)", method->name, tmpsig);
+ g_free (tmpsig);
+ } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
+ char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
+ name = g_strdup_printf ("(wrapper delegate-invoke):%s (%s)", method->name, tmpsig);
+ g_free (tmpsig);
+ } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_BEGIN_INVOKE) {
+ char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
+ name = g_strdup_printf ("(wrapper delegate-begin-invoke):%s (%s)", method->name, tmpsig);
+ g_free (tmpsig);
+ } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_END_INVOKE) {
+ char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
+ name = g_strdup_printf ("(wrapper delegate-end-invoke):%s (%s)", method->name, tmpsig);
+ g_free (tmpsig);
+ }
}
- g_free (command);
+ if (name) {
+ encode_value ((MONO_AOT_METHODREF_WRAPPER_NAME << 24), p, &p);
+ strcpy ((char*)p, name);
+ p += strlen (name) + 1;
+ g_free (name);
+ } else if (method->wrapper_type) {
+ encode_value ((MONO_AOT_METHODREF_WRAPPER << 24), p, &p);
- if (acfg->aot_opts.static_link) {
- printf ("Output file: '%s'.\n", objfile);
- printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
- g_free (objfile);
- return 0;
- }
+ encode_value (method->wrapper_type, p, &p);
- if (acfg->aot_opts.outfile)
- outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
- else
- outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
+ switch (method->wrapper_type) {
+ case MONO_WRAPPER_REMOTING_INVOKE:
+ case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
+ case MONO_WRAPPER_XDOMAIN_INVOKE: {
+ MonoMethod *m;
- tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
+ m = mono_marshal_method_from_wrapper (method);
+ g_assert (m);
+ encode_method_ref (acfg, m, p, &p);
+ break;
+ }
+ case MONO_WRAPPER_PROXY_ISINST:
+ case MONO_WRAPPER_LDFLD:
+ case MONO_WRAPPER_LDFLDA:
+ case MONO_WRAPPER_STFLD:
+ case MONO_WRAPPER_ISINST: {
+ MonoClass *proxy_class = (MonoClass*)mono_marshal_method_from_wrapper (method);
+ encode_klass_ref (acfg, proxy_class, p, &p);
+ break;
+ }
+ case MONO_WRAPPER_LDFLD_REMOTE:
+ case MONO_WRAPPER_STFLD_REMOTE:
+ break;
+ case MONO_WRAPPER_ALLOC: {
+ int alloc_type = mono_gc_get_managed_allocator_type (method);
+ g_assert (alloc_type != -1);
+ encode_value (alloc_type, p, &p);
+ break;
+ }
+ case MONO_WRAPPER_STELEMREF:
+ break;
+ case MONO_WRAPPER_UNKNOWN:
+ if (strcmp (method->name, "FastMonitorEnter") == 0)
+ encode_value (MONO_AOT_WRAPPER_MONO_ENTER, p, &p);
+ else if (strcmp (method->name, "FastMonitorExit") == 0)
+ encode_value (MONO_AOT_WRAPPER_MONO_EXIT, p, &p);
+ else
+ g_assert_not_reached ();
+ break;
+ case MONO_WRAPPER_STATIC_RGCTX_INVOKE:
+ case MONO_WRAPPER_SYNCHRONIZED:
+ case MONO_WRAPPER_MANAGED_TO_NATIVE: {
+ MonoMethod *m;
-#if defined(sparc)
- command = g_strdup_printf ("ld -shared -G -o %s %s.o", outfile_name, acfg->tmpfname);
-#elif defined(__ppc__) && defined(__MACH__)
- command = g_strdup_printf ("gcc -dynamiclib -o %s %s.o", outfile_name, acfg->tmpfname);
-#elif defined(PLATFORM_WIN32)
- command = g_strdup_printf ("gcc -shared --dll -mno-cygwin -o %s %s.o", outfile_name, acfg->tmpfname);
-#else
- if (acfg->aot_opts.no_dlsym) {
+ m = mono_marshal_method_from_wrapper (method);
+ g_assert (m);
+ g_assert (m != method);
+ encode_method_ref (acfg, m, p, &p);
+ break;
+ }
+ default:
+ g_assert_not_reached ();
+ }
+ } else if (mono_method_signature (method)->is_inflated) {
/*
- * Need to link using gcc so our ctor function gets called.
+ * This is a generic method, find the original token which referenced it and
+ * encode that.
+ * Obtain the token from information recorded by the JIT.
*/
- command = g_strdup_printf ("gcc -shared -o %s %s.o", outfile_name, acfg->tmpfname);
- } else {
- command = g_strdup_printf ("ld -shared -o %s %s.o", outfile_name, acfg->tmpfname);
- }
-#endif
- printf ("Executing the native linker: %s\n", command);
- if (system (command) != 0) {
- g_free (tmp_outfile_name);
- g_free (outfile_name);
- g_free (command);
- g_free (objfile);
- return 1;
- }
-
- g_free (command);
- unlink (objfile);
- /*com = g_strdup_printf ("strip --strip-unneeded %s%s", acfg->image->name, SHARED_EXT);
- printf ("Stripping the binary: %s\n", com);
- system (com);
- g_free (com);*/
+ ji = g_hash_table_lookup (acfg->token_info_hash, method);
+ if (ji) {
+ image_index = get_image_index (acfg, ji->image);
+ g_assert (image_index < MAX_IMAGE_INDEX);
+ token = ji->token;
- rename (tmp_outfile_name, outfile_name);
+ encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
+ encode_value (image_index, p, &p);
+ encode_value (token, p, &p);
+ } else {
+ MonoMethod *declaring;
+ MonoGenericContext *context = mono_method_get_context (method);
- g_free (tmp_outfile_name);
- g_free (outfile_name);
- g_free (objfile);
+ g_assert (method->is_inflated);
+ declaring = ((MonoMethodInflated*)method)->declaring;
- if (acfg->aot_opts.save_temps)
- printf ("Retained input file.\n");
- else
- unlink (acfg->tmpfname);
+ /*
+ * This might be a non-generic method of a generic instance, which
+ * doesn't have a token since the reference is generated by the JIT
+ * like Nullable:Box/Unbox, or by generic sharing.
+ */
- return 0;
-}
+ encode_value ((MONO_AOT_METHODREF_GINST << 24), p, &p);
+ /* Encode the klass */
+ encode_klass_ref (acfg, method->klass, p, &p);
+ /* Encode the method */
+ image_index = get_image_index (acfg, method->klass->image);
+ g_assert (image_index < MAX_IMAGE_INDEX);
+ g_assert (declaring->token);
+ token = declaring->token;
+ g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
+ encode_value (image_index, p, &p);
+ encode_value (token, p, &p);
+ encode_generic_context (acfg, context, p, &p);
+ }
+ } else if (token == 0) {
+ /* This might be a method of a constructed type like int[,].Set */
+ /* Obtain the token from information recorded by the JIT */
+ ji = g_hash_table_lookup (acfg->token_info_hash, method);
+ if (ji) {
+ image_index = get_image_index (acfg, ji->image);
+ g_assert (image_index < MAX_IMAGE_INDEX);
+ token = ji->token;
-/* EMIT FUNCTIONS */
+ encode_value ((MONO_AOT_METHODREF_METHODSPEC << 24), p, &p);
+ encode_value (image_index, p, &p);
+ encode_value (token, p, &p);
+ } else {
+ /* Array methods */
+ g_assert (method->klass->rank);
-static void emit_start (MonoAotCompile *acfg)
-{
-#ifdef USE_BIN_WRITER
- if (acfg->use_bin_writer)
- bin_writer_emit_start (acfg);
- else
- asm_writer_emit_start (acfg);
-#else
- asm_writer_emit_start (acfg);
-#endif
+ /* Encode directly */
+ encode_value ((MONO_AOT_METHODREF_ARRAY << 24), p, &p);
+ encode_klass_ref (acfg, method->klass, p, &p);
+ if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank)
+ encode_value (0, p, &p);
+ else if (!strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == method->klass->rank * 2)
+ encode_value (1, p, &p);
+ else if (!strcmp (method->name, "Get"))
+ encode_value (2, p, &p);
+ else if (!strcmp (method->name, "Address"))
+ encode_value (3, p, &p);
+ else if (!strcmp (method->name, "Set"))
+ encode_value (4, p, &p);
+ else
+ g_assert_not_reached ();
+ }
+ } else {
+ g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
+ encode_value ((image_index << 24) | mono_metadata_token_index (token), p, &p);
+ }
+ *endbuf = p;
}
-static void emit_section_change (MonoAotCompile *acfg, const char *section_name, int subsection_index)
+static gint
+compare_patches (gconstpointer a, gconstpointer b)
{
-#ifdef USE_BIN_WRITER
- if (acfg->use_bin_writer)
- bin_writer_emit_section_change (acfg, section_name, subsection_index);
- else
- asm_writer_emit_section_change (acfg, section_name, subsection_index);
-#else
- asm_writer_emit_section_change (acfg, section_name, subsection_index);
-#endif
-}
+ int i, j;
-static void emit_global_inner (MonoAotCompile *acfg, const char *name, gboolean func)
-{
-#ifdef USE_BIN_WRITER
- if (acfg->use_bin_writer)
- bin_writer_emit_global_inner (acfg, name, func);
- else
- asm_writer_emit_global_inner (acfg, name, func);
-#else
- asm_writer_emit_global_inner (acfg, name, func);
-#endif
-}
+ i = (*(MonoJumpInfo**)a)->ip.i;
+ j = (*(MonoJumpInfo**)b)->ip.i;
-static void G_GNUC_UNUSED emit_local_symbol (MonoAotCompile *acfg, const char *name, const char *end_label, gboolean func)
-{
-#ifdef USE_BIN_WRITER
- if (acfg->use_bin_writer)
- bin_writer_emit_local_symbol (acfg, name, end_label, func);
+ if (i < j)
+ return -1;
else
- asm_writer_emit_local_symbol (acfg, name, end_label, func);
-#else
- asm_writer_emit_local_symbol (acfg, name, end_label, func);
-#endif
-}
-
-static void emit_label (MonoAotCompile *acfg, const char *name)
-{
-#ifdef USE_BIN_WRITER
- if (acfg->use_bin_writer)
- bin_writer_emit_label (acfg, name);
+ if (i > j)
+ return 1;
else
- asm_writer_emit_label (acfg, name);
-#else
- asm_writer_emit_label (acfg, name);
-#endif
+ return 0;
}
-static void emit_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
+/*
+ * is_plt_patch:
+ *
+ * Return whenever PATCH_INFO refers to a direct call, and thus requires a
+ * PLT entry.
+ */
+static inline gboolean
+is_plt_patch (MonoJumpInfo *patch_info)
{
-#ifdef USE_BIN_WRITER
- if (acfg->use_bin_writer)
- bin_writer_emit_bytes (acfg, buf, size);
- else
- asm_writer_emit_bytes (acfg, buf, size);
-#else
- asm_writer_emit_bytes (acfg, buf, size);
-#endif
+ switch (patch_info->type) {
+ case MONO_PATCH_INFO_METHOD:
+ case MONO_PATCH_INFO_INTERNAL_METHOD:
+ case MONO_PATCH_INFO_JIT_ICALL_ADDR:
+ case MONO_PATCH_INFO_ICALL_ADDR:
+ case MONO_PATCH_INFO_CLASS_INIT:
+ case MONO_PATCH_INFO_RGCTX_FETCH:
+ case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
+ case MONO_PATCH_INFO_MONITOR_ENTER:
+ case MONO_PATCH_INFO_MONITOR_EXIT:
+ return TRUE;
+ default:
+ return FALSE;
+ }
}
-static void emit_string (MonoAotCompile *acfg, const char *value)
+static int
+get_plt_offset (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
{
-#ifdef USE_BIN_WRITER
- if (acfg->use_bin_writer)
- bin_writer_emit_string (acfg, value);
- else
- asm_writer_emit_string (acfg, value);
-#else
- asm_writer_emit_string (acfg, value);
-#endif
-}
+ int res = -1;
-static void emit_line (MonoAotCompile *acfg)
-{
-#ifdef USE_BIN_WRITER
- if (acfg->use_bin_writer)
- bin_writer_emit_line (acfg);
- else
- asm_writer_emit_line (acfg);
-#else
- asm_writer_emit_line (acfg);
-#endif
-}
+ if (is_plt_patch (patch_info)) {
+ int idx = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_plt_offset, patch_info));
-static void emit_alignment (MonoAotCompile *acfg, int size)
-{
-#ifdef USE_BIN_WRITER
- if (acfg->use_bin_writer)
- bin_writer_emit_alignment (acfg, size);
- else
- asm_writer_emit_alignment (acfg, size);
-#else
- asm_writer_emit_alignment (acfg, size);
-#endif
-}
+ if (patch_info->type == MONO_PATCH_INFO_METHOD && (patch_info->data.method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)) {
+ /*
+ * Allocate a separate PLT slot for each such patch, since some plt
+ * entries will refer to the method itself, and some will refer to
+ * wrapper.
+ */
+ idx = 0;
+ }
-static void emit_pointer_unaligned (MonoAotCompile *acfg, const char *target)
-{
-#ifdef USE_BIN_WRITER
- if (acfg->use_bin_writer)
- bin_writer_emit_pointer_unaligned (acfg, target);
- else
- asm_writer_emit_pointer_unaligned (acfg, target);
-#else
- asm_writer_emit_pointer_unaligned (acfg, target);
-#endif
-}
+ if (idx) {
+ res = idx;
+ } else {
+ MonoJumpInfo *new_ji = mono_patch_info_dup_mp (acfg->mempool, patch_info);
-static void emit_pointer (MonoAotCompile *acfg, const char *target)
-{
-#ifdef USE_BIN_WRITER
- if (acfg->use_bin_writer)
- bin_writer_emit_pointer (acfg, target);
- else
- asm_writer_emit_pointer (acfg, target);
-#else
- asm_writer_emit_pointer (acfg, target);
-#endif
-}
+ res = acfg->plt_offset;
+ g_hash_table_insert (acfg->plt_offset_to_patch, GUINT_TO_POINTER (res), new_ji);
+ g_hash_table_insert (acfg->patch_to_plt_offset, new_ji, GUINT_TO_POINTER (res));
+ acfg->plt_offset ++;
+ }
+ }
-static void emit_int16 (MonoAotCompile *acfg, int value)
-{
-#ifdef USE_BIN_WRITER
- if (acfg->use_bin_writer)
- bin_writer_emit_int16 (acfg, value);
- else
- asm_writer_emit_int16 (acfg, value);
-#else
- asm_writer_emit_int16 (acfg, value);
-#endif
+ return res;
}
-static void emit_int32 (MonoAotCompile *acfg, int value)
+/**
+ * get_got_offset:
+ *
+ * Returns the offset of the GOT slot where the runtime object resulting from resolving
+ * JI could be found if it exists, otherwise allocates a new one.
+ */
+static guint32
+get_got_offset (MonoAotCompile *acfg, MonoJumpInfo *ji)
{
-#ifdef USE_BIN_WRITER
- if (acfg->use_bin_writer)
- bin_writer_emit_int32 (acfg, value);
- else
- asm_writer_emit_int32 (acfg, value);
-#else
- asm_writer_emit_int32 (acfg, value);
-#endif
-}
+ guint32 got_offset;
-static void emit_symbol_diff (MonoAotCompile *acfg, const char *end, const char* start, int offset)
-{
-#ifdef USE_BIN_WRITER
- if (acfg->use_bin_writer)
- bin_writer_emit_symbol_diff (acfg, end, start, offset);
- else
- asm_writer_emit_symbol_diff (acfg, end, start, offset);
-#else
- asm_writer_emit_symbol_diff (acfg, end, start, offset);
-#endif
-}
+ got_offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_shared_got_offset, ji));
+ if (got_offset)
+ return got_offset - 1;
-static void emit_zero_bytes (MonoAotCompile *acfg, int num)
-{
-#ifdef USE_BIN_WRITER
- if (acfg->use_bin_writer)
- bin_writer_emit_zero_bytes (acfg, num);
- else
- asm_writer_emit_zero_bytes (acfg, num);
-#else
- asm_writer_emit_zero_bytes (acfg, num);
-#endif
+ got_offset = acfg->got_offset;
+ acfg->got_offset ++;
+
+ acfg->stats.got_slots ++;
+ acfg->stats.got_slot_types [ji->type] ++;
+
+ return got_offset;
}
-static int
-emit_writeout (MonoAotCompile *acfg)
+static guint32
+get_shared_got_offset (MonoAotCompile *acfg, MonoJumpInfo *ji)
{
-#ifdef USE_BIN_WRITER
- if (acfg->use_bin_writer)
- return bin_writer_emit_writeout (acfg);
- else
- return asm_writer_emit_writeout (acfg);
-#else
- return asm_writer_emit_writeout (acfg);
-#endif
+ MonoJumpInfo *copy;
+ guint32 got_offset;
+
+ if (!g_hash_table_lookup (acfg->patch_to_shared_got_offset, ji)) {
+ got_offset = get_got_offset (acfg, ji);
+ copy = mono_patch_info_dup_mp (acfg->mempool, ji);
+ g_hash_table_insert (acfg->patch_to_shared_got_offset, copy, GUINT_TO_POINTER (got_offset + 1));
+ g_ptr_array_add (acfg->shared_patches, copy);
+ }
+
+ return get_got_offset (acfg, ji);
}
+/* Add a method to the list of methods which need to be emitted */
static void
-emit_global (MonoAotCompile *acfg, const char *name, gboolean func)
+add_method_with_index (MonoAotCompile *acfg, MonoMethod *method, int index)
{
- if (acfg->aot_opts.no_dlsym) {
- g_ptr_array_add (acfg->globals, g_strdup (name));
- } else {
- emit_global_inner (acfg, name, func);
+ g_assert (method);
+ if (!g_hash_table_lookup (acfg->method_indexes, method)) {
+ g_ptr_array_add (acfg->methods, method);
+ g_hash_table_insert (acfg->method_indexes, method, GUINT_TO_POINTER (index + 1));
+ acfg->nmethods = acfg->methods->len + 1;
}
}
-static void
-emit_byte (MonoAotCompile *acfg, guint8 val)
+static guint32
+get_method_index (MonoAotCompile *acfg, MonoMethod *method)
{
- emit_bytes (acfg, &val, 1);
+ int index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
+
+ g_assert (index);
+
+ return index - 1;
}
-static void
-emit_string_symbol (MonoAotCompile *acfg, const char *name, const char *value)
+static int
+add_method (MonoAotCompile *acfg, MonoMethod *method)
{
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, name, FALSE);
- emit_label (acfg, name);
- emit_string (acfg, value);
-}
+ int index;
-/* AOT COMPILER */
+ index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
+ if (index)
+ return index - 1;
-static guint32
-mono_get_field_token (MonoClassField *field)
-{
- MonoClass *klass = field->parent;
- int i;
+ index = acfg->method_index;
+ add_method_with_index (acfg, method, index);
- for (i = 0; i < klass->field.count; ++i) {
- if (field == &klass->fields [i])
- return MONO_TOKEN_FIELD_DEF | (klass->field.first + 1 + i);
- }
+ /* FIXME: Fix quadratic behavior */
+ acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (index));
- g_assert_not_reached ();
- return 0;
+ acfg->method_index ++;
+
+ return index;
}
-static inline void
-encode_value (gint32 value, guint8 *buf, guint8 **endbuf)
+static void
+add_extra_method (MonoAotCompile *acfg, MonoMethod *method)
{
- guint8 *p = buf;
-
- //printf ("ENCODE: %d 0x%x.\n", value, value);
+ int index;
- /*
- * Same encoding as the one used in the metadata, extended to handle values
- * greater than 0x1fffffff.
- */
- if ((value >= 0) && (value <= 127))
- *p++ = value;
- else if ((value >= 0) && (value <= 16383)) {
- p [0] = 0x80 | (value >> 8);
- p [1] = value & 0xff;
- p += 2;
- } else if ((value >= 0) && (value <= 0x1fffffff)) {
- p [0] = (value >> 24) | 0xc0;
- p [1] = (value >> 16) & 0xff;
- p [2] = (value >> 8) & 0xff;
- p [3] = value & 0xff;
- p += 4;
- }
- else {
- p [0] = 0xff;
- p [1] = (value >> 24) & 0xff;
- p [2] = (value >> 16) & 0xff;
- p [3] = (value >> 8) & 0xff;
- p [4] = value & 0xff;
- p += 5;
- }
- if (endbuf)
- *endbuf = p;
+ index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
+ if (index)
+ return;
+ add_method (acfg, method);
+ g_ptr_array_add (acfg->extra_methods, method);
}
-static guint32
-get_image_index (MonoAotCompile *cfg, MonoImage *image)
+static void
+add_jit_icall_wrapper (gpointer key, gpointer value, gpointer user_data)
{
- guint32 index;
+ MonoAotCompile *acfg = user_data;
+ MonoJitICallInfo *callinfo = value;
+ MonoMethod *wrapper;
+ char *name;
- index = GPOINTER_TO_UINT (g_hash_table_lookup (cfg->image_hash, image));
- if (index)
- return index - 1;
- else {
- index = g_hash_table_size (cfg->image_hash);
- g_hash_table_insert (cfg->image_hash, image, GUINT_TO_POINTER (index + 1));
- g_ptr_array_add (cfg->image_table, image);
- return index;
- }
+ if (!callinfo->sig)
+ return;
+
+ name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
+ wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_for_pending_exc);
+ g_free (name);
+
+ add_method (acfg, wrapper);
}
-static guint32
-find_typespec_for_class (MonoAotCompile *acfg, MonoClass *klass)
+static MonoMethod*
+get_runtime_invoke_sig (MonoMethodSignature *sig)
{
- int i;
- MonoClass *k = NULL;
-
- /* FIXME: Search referenced images as well */
- for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
- k = mono_class_get_full (acfg->image, MONO_TOKEN_TYPE_SPEC | (i + 1), NULL);
- if (k == klass)
- break;
- }
+ MonoMethodBuilder *mb;
+ MonoMethod *m;
- if (i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows)
- return MONO_TOKEN_TYPE_SPEC | (i + 1);
- else
- return 0;
+ mb = mono_mb_new (mono_defaults.object_class, "FOO", MONO_WRAPPER_NONE);
+ m = mono_mb_create_method (mb, sig, 16);
+ return mono_marshal_get_runtime_invoke (m, FALSE);
}
static void
-encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf);
-
-/*
- * encode_klass_ref:
- *
- * Encode a reference to KLASS. We use our home-grown encoding instead of the
- * standard metadata encoding.
- */
-static void
-encode_klass_ref (MonoAotCompile *acfg, MonoClass *klass, guint8 *buf, guint8 **endbuf)
+add_wrappers (MonoAotCompile *acfg)
{
- guint8 *p = buf;
-
- if (klass->generic_class) {
- guint32 token;
- g_assert (klass->type_token);
+ MonoMethod *method, *m;
+ int i, j, nallocators;
+ MonoMethodSignature *sig, *csig;
+ guint32 token;
- /* Find a typespec for a class if possible */
- token = find_typespec_for_class (acfg, klass);
- if (token) {
- encode_value (token, p, &p);
- encode_value (get_image_index (acfg, acfg->image), p, &p);
- } else {
- MonoClass *gclass = klass->generic_class->container_class;
- MonoGenericInst *inst = klass->generic_class->context.class_inst;
- int i;
+ /*
+ * FIXME: Instead of AOTing all the wrappers, it might be better to redesign them
+ * so there is only one wrapper of a given type, or inlining their contents into their
+ * callers.
+ */
- /* Encode it ourselves */
- /* Marker */
- encode_value (MONO_TOKEN_TYPE_SPEC, p, &p);
- encode_value (MONO_TYPE_GENERICINST, p, &p);
- encode_klass_ref (acfg, gclass, p, &p);
- encode_value (inst->type_argc, p, &p);
- for (i = 0; i < inst->type_argc; ++i)
- encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
- }
- } else if (klass->type_token) {
- g_assert (mono_metadata_token_code (klass->type_token) == MONO_TOKEN_TYPE_DEF);
- encode_value (klass->type_token - MONO_TOKEN_TYPE_DEF, p, &p);
- encode_value (get_image_index (acfg, klass->image), p, &p);
- } else if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR)) {
- MonoGenericParam *param = klass->byval_arg.data.generic_param;
+ /*
+ * FIXME: This depends on the fact that different wrappers have different
+ * names.
+ */
- /* Marker */
- encode_value (MONO_TOKEN_TYPE_SPEC, p, &p);
- encode_value (klass->byval_arg.type, p, &p);
+ /* FIXME: Collect these automatically */
- encode_value (param->num, p, &p);
-
- g_assert (param->owner);
- encode_value (param->owner->is_method, p, &p);
- if (param->owner->is_method)
- encode_method_ref (acfg, param->owner->owner.method, p, &p);
- else
- encode_klass_ref (acfg, param->owner->owner.klass, p, &p);
- } else {
- /* Array class */
- g_assert (klass->rank > 0);
- encode_value (MONO_TOKEN_TYPE_DEF, p, &p);
- encode_value (get_image_index (acfg, klass->image), p, &p);
- encode_value (klass->rank, p, &p);
- encode_klass_ref (acfg, klass->element_class, p, &p);
- }
- *endbuf = p;
-}
+ /* Runtime invoke wrappers */
-static void
-encode_field_info (MonoAotCompile *cfg, MonoClassField *field, guint8 *buf, guint8 **endbuf)
-{
- guint32 token = mono_get_field_token (field);
- guint8 *p = buf;
+ /* void runtime-invoke () [.cctor] */
+ csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
+ csig->ret = &mono_defaults.void_class->byval_arg;
+ add_method (acfg, get_runtime_invoke_sig (csig));
- encode_klass_ref (cfg, field->parent, p, &p);
- g_assert (mono_metadata_token_code (token) == MONO_TOKEN_FIELD_DEF);
- encode_value (token - MONO_TOKEN_FIELD_DEF, p, &p);
- *endbuf = p;
-}
+ /* void runtime-invoke () [Finalize] */
+ csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
+ csig->hasthis = 1;
+ csig->ret = &mono_defaults.void_class->byval_arg;
+ add_method (acfg, get_runtime_invoke_sig (csig));
-static void
-encode_generic_context (MonoAotCompile *acfg, MonoGenericContext *context, guint8 *buf, guint8 **endbuf)
-{
- guint8 *p = buf;
- int i;
- MonoGenericInst *inst;
+ /* void runtime-invoke (string) [exception ctor] */
+ csig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
+ csig->hasthis = 1;
+ csig->ret = &mono_defaults.void_class->byval_arg;
+ csig->params [0] = &mono_defaults.string_class->byval_arg;
+ add_method (acfg, get_runtime_invoke_sig (csig));
- /* Encode the context */
- inst = context->class_inst;
- encode_value (inst ? 1 : 0, p, &p);
- if (inst) {
- encode_value (inst->type_argc, p, &p);
- for (i = 0; i < inst->type_argc; ++i)
- encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
- }
- inst = context->method_inst;
- encode_value (inst ? 1 : 0, p, &p);
- if (inst) {
- encode_value (inst->type_argc, p, &p);
- for (i = 0; i < inst->type_argc; ++i)
- encode_klass_ref (acfg, mono_class_from_mono_type (inst->type_argv [i]), p, &p);
- }
+ /* void runtime-invoke (string, string) [exception ctor] */
+ csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
+ csig->hasthis = 1;
+ csig->ret = &mono_defaults.void_class->byval_arg;
+ csig->params [0] = &mono_defaults.string_class->byval_arg;
+ csig->params [1] = &mono_defaults.string_class->byval_arg;
+ add_method (acfg, get_runtime_invoke_sig (csig));
- *endbuf = p;
-}
+ /* string runtime-invoke () [Exception.ToString ()] */
+ csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
+ csig->hasthis = 1;
+ csig->ret = &mono_defaults.string_class->byval_arg;
+ add_method (acfg, get_runtime_invoke_sig (csig));
-#define MAX_IMAGE_INDEX 250
+ /* void runtime-invoke (string, Exception) [exception ctor] */
+ csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
+ csig->hasthis = 1;
+ csig->ret = &mono_defaults.void_class->byval_arg;
+ csig->params [0] = &mono_defaults.string_class->byval_arg;
+ csig->params [1] = &mono_defaults.exception_class->byval_arg;
+ add_method (acfg, get_runtime_invoke_sig (csig));
-static void
-encode_method_ref (MonoAotCompile *acfg, MonoMethod *method, guint8 *buf, guint8 **endbuf)
-{
- guint32 image_index = get_image_index (acfg, method->klass->image);
- guint32 token = method->token;
- MonoJumpInfoToken *ji;
- guint8 *p = buf;
+ /* Assembly runtime-invoke (string, bool) [DoAssemblyResolve] */
+ csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
+ csig->hasthis = 1;
+ csig->ret = &(mono_class_from_name (
+ mono_defaults.corlib, "System.Reflection", "Assembly"))->byval_arg;
+ csig->params [0] = &mono_defaults.string_class->byval_arg;
+ csig->params [1] = &mono_defaults.boolean_class->byval_arg;
+ add_method (acfg, get_runtime_invoke_sig (csig));
- g_assert (image_index < MAX_IMAGE_INDEX);
+ /* runtime-invoke used by finalizers */
+ add_method (acfg, mono_marshal_get_runtime_invoke (mono_class_get_method_from_name_flags (mono_defaults.object_class, "Finalize", 0, 0), TRUE));
- /* Mark methods which can't use aot trampolines because they need the further
- * processing in mono_magic_trampoline () which requires a MonoMethod*.
- */
- if ((method->is_generic && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) ||
- (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED))
- encode_value ((252 << 24), p, &p);
+ for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
+ MonoMethod *method;
+ guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
+ gboolean skip = FALSE;
- if (method->wrapper_type) {
- /* Marker */
- encode_value ((253 << 24), p, &p);
+ method = mono_get_method (acfg->image, token, NULL);
- encode_value (method->wrapper_type, p, &p);
+ if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
+ (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
+ (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
+ skip = TRUE;
- switch (method->wrapper_type) {
- case MONO_WRAPPER_REMOTING_INVOKE:
- case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
- case MONO_WRAPPER_XDOMAIN_INVOKE: {
- MonoMethod *m;
+ if (method->is_generic || method->klass->generic_container)
+ skip = TRUE;
- m = mono_marshal_method_from_wrapper (method);
- g_assert (m);
- encode_method_ref (acfg, m, p, &p);
- break;
- }
- case MONO_WRAPPER_PROXY_ISINST:
- case MONO_WRAPPER_LDFLD:
- case MONO_WRAPPER_LDFLDA:
- case MONO_WRAPPER_STFLD:
- case MONO_WRAPPER_ISINST: {
- MonoClass *proxy_class = (MonoClass*)mono_marshal_method_from_wrapper (method);
- encode_klass_ref (acfg, proxy_class, p, &p);
- break;
- }
- case MONO_WRAPPER_LDFLD_REMOTE:
- case MONO_WRAPPER_STFLD_REMOTE:
- break;
- case MONO_WRAPPER_ALLOC: {
- int alloc_type = mono_gc_get_managed_allocator_type (method);
- g_assert (alloc_type != -1);
- encode_value (alloc_type, p, &p);
- break;
+ /* Skip methods which can not be handled by get_runtime_invoke () */
+ sig = mono_method_signature (method);
+ if ((sig->ret->type == MONO_TYPE_PTR) ||
+ (sig->ret->type == MONO_TYPE_TYPEDBYREF))
+ skip = TRUE;
+
+ for (j = 0; j < sig->param_count; j++) {
+ if (sig->params [j]->type == MONO_TYPE_TYPEDBYREF)
+ skip = TRUE;
}
- case MONO_WRAPPER_STELEMREF:
- break;
- case MONO_WRAPPER_UNKNOWN:
- if (strcmp (method->name, "FastMonitorEnter") == 0)
- encode_value (MONO_AOT_WRAPPER_MONO_ENTER, p, &p);
- else if (strcmp (method->name, "FastMonitorExit") == 0)
- encode_value (MONO_AOT_WRAPPER_MONO_EXIT, p, &p);
- else
- g_assert_not_reached ();
- break;
- case MONO_WRAPPER_STATIC_RGCTX_INVOKE: {
- MonoMethod *m;
- m = mono_marshal_method_from_wrapper (method);
- g_assert (m);
- encode_method_ref (acfg, m, p, &p);
- break;
+ if (!skip)
+ add_method (acfg, mono_marshal_get_runtime_invoke (method, FALSE));
+ }
+
+ if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
+ MonoMethodDesc *desc;
+ MonoMethod *orig_method;
+
+ /* JIT icall wrappers */
+ /* FIXME: locking */
+ g_hash_table_foreach (mono_get_jit_icall_info (), add_jit_icall_wrapper, acfg);
+
+ /* Managed Allocators */
+ nallocators = mono_gc_get_managed_allocator_types ();
+ for (i = 0; i < nallocators; ++i) {
+ m = mono_gc_get_managed_allocator_by_type (i);
+ if (m)
+ add_method (acfg, m);
}
- default:
- g_assert_not_reached ();
+
+ /* stelemref */
+ add_method (acfg, mono_marshal_get_stelemref ());
+
+ /* Monitor Enter/Exit */
+ desc = mono_method_desc_new ("Monitor:Enter", FALSE);
+ orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
+ g_assert (orig_method);
+ mono_method_desc_free (desc);
+ method = mono_monitor_get_fast_path (orig_method);
+ if (method)
+ add_method (acfg, method);
+
+ desc = mono_method_desc_new ("Monitor:Exit", FALSE);
+ orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
+ g_assert (orig_method);
+ mono_method_desc_free (desc);
+ method = mono_monitor_get_fast_path (orig_method);
+ if (method)
+ add_method (acfg, method);
+ }
+
+ /* remoting-invoke wrappers */
+ for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
+ MonoMethodSignature *sig;
+
+ token = MONO_TOKEN_METHOD_DEF | (i + 1);
+ method = mono_get_method (acfg->image, token, NULL);
+
+ sig = mono_method_signature (method);
+
+ if (sig->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class)) {
+ m = mono_marshal_get_remoting_invoke_with_check (method);
+
+ add_method (acfg, m);
}
- } else if (mono_method_signature (method)->is_inflated) {
- /*
- * This is a generic method, find the original token which referenced it and
- * encode that.
- * Obtain the token from information recorded by the JIT.
- */
- ji = g_hash_table_lookup (acfg->token_info_hash, method);
- if (ji) {
- image_index = get_image_index (acfg, ji->image);
- g_assert (image_index < MAX_IMAGE_INDEX);
- token = ji->token;
+ }
- /* Marker */
- encode_value ((255 << 24), p, &p);
- encode_value (image_index, p, &p);
- encode_value (token, p, &p);
- } else {
- MonoMethod *declaring;
- MonoGenericContext *context = mono_method_get_context (method);
+ /* delegate-invoke wrappers */
+ for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
+ MonoClass *klass;
+
+ token = MONO_TOKEN_TYPE_DEF | (i + 1);
+ klass = mono_class_get (acfg->image, token);
- g_assert (method->is_inflated);
- declaring = ((MonoMethodInflated*)method)->declaring;
+ if (klass->delegate && klass != mono_defaults.delegate_class && klass != mono_defaults.multicastdelegate_class && !klass->generic_container) {
+ method = mono_get_delegate_invoke (klass);
- /*
- * This might be a non-generic method of a generic instance, which
- * doesn't have a token since the reference is generated by the JIT
- * like Nullable:Box/Unbox, or by generic sharing.
- */
+ m = mono_marshal_get_delegate_invoke (method, NULL);
- /* Marker */
- encode_value ((254 << 24), p, &p);
- /* Encode the klass */
- encode_klass_ref (acfg, method->klass, p, &p);
- /* Encode the method */
- image_index = get_image_index (acfg, method->klass->image);
- g_assert (image_index < MAX_IMAGE_INDEX);
- g_assert (declaring->token);
- token = declaring->token;
- g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
- encode_value (image_index, p, &p);
- encode_value (token, p, &p);
- encode_generic_context (acfg, context, p, &p);
+ add_method (acfg, m);
+
+ method = mono_class_get_method_from_name_flags (klass, "BeginInvoke", -1, 0);
+ add_method (acfg, mono_marshal_get_delegate_begin_invoke (method));
+
+ method = mono_class_get_method_from_name_flags (klass, "EndInvoke", -1, 0);
+ add_method (acfg, mono_marshal_get_delegate_end_invoke (method));
}
- } else if (token == 0) {
- /* This might be a method of a constructed type like int[,].Set */
- /* Obtain the token from information recorded by the JIT */
- ji = g_hash_table_lookup (acfg->token_info_hash, method);
- g_assert (ji);
- image_index = get_image_index (acfg, ji->image);
- g_assert (image_index < MAX_IMAGE_INDEX);
- token = ji->token;
+ }
- /* Marker */
- encode_value ((255 << 24), p, &p);
- encode_value (image_index, p, &p);
- encode_value (token, p, &p);
- } else {
- g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
- encode_value ((image_index << 24) | mono_metadata_token_index (token), p, &p);
+ /* Synchronized wrappers */
+ for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
+ token = MONO_TOKEN_METHOD_DEF | (i + 1);
+ method = mono_get_method (acfg->image, token, NULL);
+
+ if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
+ add_method (acfg, mono_marshal_get_synchronized_wrapper (method));
+ }
+
+ /* pinvoke wrappers */
+ for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
+ MonoMethod *method;
+ guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
+
+ method = mono_get_method (acfg->image, token, NULL);
+
+ if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
+ (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
+ add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
+ }
}
- *endbuf = p;
}
-static gint
-compare_patches (gconstpointer a, gconstpointer b)
+static gboolean
+has_type_vars (MonoClass *klass)
{
- int i, j;
-
- i = (*(MonoJumpInfo**)a)->ip.i;
- j = (*(MonoJumpInfo**)b)->ip.i;
+ if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
+ return TRUE;
+ if (klass->rank)
+ return has_type_vars (klass->element_class);
+ if (klass->generic_class) {
+ MonoGenericContext *context = &klass->generic_class->context;
+ if (context->class_inst) {
+ int i;
- if (i < j)
- return -1;
- else
- if (i > j)
- return 1;
- else
- return 0;
+ for (i = 0; i < context->class_inst->type_argc; ++i)
+ if (has_type_vars (mono_class_from_mono_type (context->class_inst->type_argv [i])))
+ return TRUE;
+ }
+ }
+ return FALSE;
}
-/*
- * is_plt_patch:
- *
- * Return whenever PATCH_INFO refers to a direct call, and thus requires a
- * PLT entry.
- */
-static inline gboolean
-is_plt_patch (MonoJumpInfo *patch_info)
+static gboolean
+method_has_type_vars (MonoMethod *method)
{
- switch (patch_info->type) {
- case MONO_PATCH_INFO_METHOD:
- case MONO_PATCH_INFO_INTERNAL_METHOD:
- case MONO_PATCH_INFO_JIT_ICALL_ADDR:
- case MONO_PATCH_INFO_ICALL_ADDR:
- case MONO_PATCH_INFO_CLASS_INIT:
- case MONO_PATCH_INFO_RGCTX_FETCH:
- case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
- case MONO_PATCH_INFO_MONITOR_ENTER:
- case MONO_PATCH_INFO_MONITOR_EXIT:
+ if (has_type_vars (method->klass))
return TRUE;
- default:
- return FALSE;
+
+ if (method->is_inflated) {
+ MonoGenericContext *context = mono_method_get_context (method);
+ if (context->method_inst) {
+ int i;
+
+ for (i = 0; i < context->method_inst->type_argc; ++i)
+ if (has_type_vars (mono_class_from_mono_type (context->method_inst->type_argv [i])))
+ return TRUE;
+ }
}
+ return FALSE;
}
/*
- * is_shared_got_patch:
+ * add_generic_class:
*
- * Return whenever PATCH_INFO refers to a patch which needs a shared GOT
- * entry.
- * Keep it in sync with the version in aot-runtime.c.
+ * Add all methods of a generic class.
*/
-static inline gboolean
-is_shared_got_patch (MonoJumpInfo *patch_info)
+static void
+add_generic_class (MonoAotCompile *acfg, MonoClass *klass)
{
- switch (patch_info->type) {
- case MONO_PATCH_INFO_VTABLE:
- case MONO_PATCH_INFO_CLASS:
- case MONO_PATCH_INFO_IID:
- case MONO_PATCH_INFO_ADJUSTED_IID:
- case MONO_PATCH_INFO_FIELD:
- case MONO_PATCH_INFO_SFLDA:
- case MONO_PATCH_INFO_DECLSEC:
- case MONO_PATCH_INFO_LDTOKEN:
- case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
- case MONO_PATCH_INFO_RVA:
- case MONO_PATCH_INFO_METHODCONST:
- return TRUE;
- default:
- return FALSE;
- }
-}
-
-static int
-get_plt_offset (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
-{
- int res = -1;
+ MonoMethod *method;
+ gpointer iter;
- if (is_plt_patch (patch_info)) {
- int idx = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_plt_offset, patch_info));
+ mono_class_init (klass);
- if (patch_info->type == MONO_PATCH_INFO_METHOD && (patch_info->data.method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)) {
- /*
- * Allocate a separate PLT slot for each such patch, since some plt
- * entries will refer to the method itself, and some will refer to
- * wrapper.
- */
- idx = 0;
- }
+ if (klass->generic_class && klass->generic_class->context.class_inst->is_open)
+ return;
- if (idx) {
- res = idx;
- } else {
- MonoJumpInfo *new_ji = mono_patch_info_dup_mp (acfg->mempool, patch_info);
+ if (has_type_vars (klass))
+ return;
- res = acfg->plt_offset;
- g_hash_table_insert (acfg->plt_offset_to_patch, GUINT_TO_POINTER (res), new_ji);
- g_hash_table_insert (acfg->patch_to_plt_offset, new_ji, GUINT_TO_POINTER (res));
- acfg->plt_offset ++;
- }
- }
+ if (!klass->generic_class && !klass->rank)
+ return;
- return res;
-}
+ /*
+ * Add rgctx wrappers for cctors since those are called by the runtime, so
+ * there is no methodspec for them. This is needed even for shared classes,
+ * since rgctx wrappers belong to inflated methods.
+ */
+ method = mono_class_get_cctor (klass);
+ if (method && mono_method_needs_static_rgctx_invoke (method, FALSE))
+ add_extra_method (acfg, mono_marshal_get_static_rgctx_invoke (method));
-/**
- * get_got_offset:
- *
- * Returns the offset of the GOT slot where the runtime object resulting from resolving
- * JI could be found if it exists, otherwise allocates a new one.
- */
-static guint32
-get_got_offset (MonoAotCompile *acfg, MonoJumpInfo *ji)
-{
- guint32 got_offset;
+ iter = NULL;
+ while ((method = mono_class_get_methods (klass, &iter))) {
+ if (mono_method_is_generic_sharable_impl (method, FALSE))
+ /* Already added */
+ continue;
- got_offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_shared_got_offset, ji));
- if (got_offset)
- return got_offset - 1;
+ if (method->is_generic)
+ /* FIXME: */
+ continue;
- got_offset = acfg->got_offset;
- acfg->got_offset ++;
+ /*
+ * FIXME: Instances which are referenced by these methods are not added,
+ * for example Array.Resize<int> for List<int>.Add ().
+ */
+ add_extra_method (acfg, method);
+ }
- acfg->stats.got_slots ++;
- acfg->stats.got_slot_types [ji->type] ++;
+ /*
+ * For ICollection<T>, where T is a vtype, add instances of the helper methods
+ * in Array, since a T[] could be cast to ICollection<T>.
+ */
+ if (klass->image == mono_defaults.corlib && !strcmp (klass->name_space, "System.Collections.Generic") &&
+ (!strcmp(klass->name, "ICollection`1") || !strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IList`1") || !strcmp (klass->name, "IEnumerator`1")) &&
+ MONO_TYPE_ISSTRUCT (klass->generic_class->context.class_inst->type_argv [0])) {
+ MonoClass *tclass = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
+ MonoClass *array_class = mono_bounded_array_class_get (tclass, 1, FALSE);
+ gpointer iter;
+ char *name_prefix;
- return got_offset;
-}
+ if (!strcmp (klass->name, "IEnumerator`1"))
+ name_prefix = g_strdup_printf ("%s.%s", klass->name_space, "IEnumerable`1");
+ else
+ name_prefix = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
-static guint32
-get_shared_got_offset (MonoAotCompile *acfg, MonoJumpInfo *ji)
-{
- MonoJumpInfo *copy;
- guint32 got_offset;
+ /* Add the T[]/InternalEnumerator class */
+ if (!strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IEnumerator`1")) {
+ MonoClass *nclass;
- if (!g_hash_table_lookup (acfg->patch_to_shared_got_offset, ji)) {
- got_offset = get_got_offset (acfg, ji);
- copy = mono_patch_info_dup_mp (acfg->mempool, ji);
- g_hash_table_insert (acfg->patch_to_shared_got_offset, copy, GUINT_TO_POINTER (got_offset + 1));
- g_ptr_array_add (acfg->shared_patches, copy);
- }
+ iter = NULL;
+ while ((nclass = mono_class_get_nested_types (array_class->parent, &iter))) {
+ if (!strcmp (nclass->name, "InternalEnumerator`1"))
+ break;
+ }
+ g_assert (nclass);
+ nclass = mono_class_inflate_generic_class (nclass, mono_generic_class_get_context (klass->generic_class));
+ add_generic_class (acfg, nclass);
+ }
- return get_got_offset (acfg, ji);
-}
+ iter = NULL;
+ while ((method = mono_class_get_methods (array_class, &iter))) {
+ if (strstr (method->name, name_prefix))
+ add_extra_method (acfg, method);
+ }
-/* Add a method to the list of methods which need to be emitted */
-static void
-add_method_with_index (MonoAotCompile *acfg, MonoMethod *method, int index)
-{
- g_assert (method);
- if (!g_hash_table_lookup (acfg->method_indexes, method)) {
- g_ptr_array_add (acfg->methods, method);
- g_hash_table_insert (acfg->method_indexes, method, GUINT_TO_POINTER (index + 1));
- acfg->nmethods = acfg->methods->len + 1;
+ g_free (name_prefix);
}
}
-static guint32
-get_method_index (MonoAotCompile *acfg, MonoMethod *method)
+/*
+ * add_generic_instances:
+ *
+ * Add instances referenced by the METHODSPEC/TYPESPEC table.
+ */
+static void
+add_generic_instances (MonoAotCompile *acfg)
{
- int index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
-
- g_assert (index);
+ int i;
+ guint32 token;
+ MonoMethod *method;
+ MonoMethodHeader *header;
+ MonoMethodSignature *sig;
+ MonoGenericContext *context;
- return index - 1;
-}
+ for (i = 0; i < acfg->image->tables [MONO_TABLE_METHODSPEC].rows; ++i) {
+ token = MONO_TOKEN_METHOD_SPEC | (i + 1);
+ method = mono_get_method (acfg->image, token, NULL);
-static int
-add_method (MonoAotCompile *acfg, MonoMethod *method)
-{
- int index;
+ context = mono_method_get_context (method);
+ if (context && ((context->class_inst && context->class_inst->is_open) ||
+ (context->method_inst && context->method_inst->is_open)))
+ continue;
- index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
- if (index)
- return index - 1;
+ if (method->klass->image != acfg->image)
+ continue;
- index = acfg->method_index;
- add_method_with_index (acfg, method, index);
+ if (mono_method_is_generic_sharable_impl (method, FALSE))
+ /* Already added */
+ continue;
- /* FIXME: Fix quadratic behavior */
- acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (index));
+ add_extra_method (acfg, method);
+ }
- acfg->method_index ++;
+ for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
+ MonoClass *klass;
- return index;
-}
+ token = MONO_TOKEN_TYPE_SPEC | (i + 1);
-static void
-add_extra_method (MonoAotCompile *acfg, MonoMethod *method)
-{
- int index;
+ klass = mono_class_get (acfg->image, token);
+ if (!klass)
+ continue;
- index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->method_indexes, method));
- if (index)
- return;
- add_method (acfg, method);
- g_ptr_array_add (acfg->extra_methods, method);
-}
+ add_generic_class (acfg, klass);
+ }
-static void
-add_jit_icall_wrapper (gpointer key, gpointer value, gpointer user_data)
-{
- MonoAotCompile *acfg = user_data;
- MonoJitICallInfo *callinfo = value;
- MonoMethod *wrapper;
- char *name;
+ /* Add types of args/locals */
+ for (i = 0; i < acfg->methods->len; ++i) {
+ int j;
- if (!callinfo->sig)
- return;
+ method = g_ptr_array_index (acfg->methods, i);
- name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
- wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_for_pending_exc);
- g_free (name);
+ sig = mono_method_signature (method);
- add_method (acfg, wrapper);
-}
+ if (sig) {
+ for (j = 0; j < sig->param_count; ++j)
+ if (sig->params [j]->type == MONO_TYPE_GENERICINST)
+ add_generic_class (acfg, mono_class_from_mono_type (sig->params [j]));
+ }
-static MonoMethod*
-get_runtime_invoke_sig (MonoMethodSignature *sig)
-{
- MonoMethodBuilder *mb;
- MonoMethod *m;
+ header = mono_method_get_header (method);
- mb = mono_mb_new (mono_defaults.object_class, "FOO", MONO_WRAPPER_NONE);
- m = mono_mb_create_method (mb, sig, 16);
- return mono_marshal_get_runtime_invoke (m);
+ if (header) {
+ for (j = 0; j < header->num_locals; ++j)
+ if (header->locals [j]->type == MONO_TYPE_GENERICINST)
+ add_generic_class (acfg, mono_class_from_mono_type (header->locals [j]));
+ }
+ }
}
+/*
+ * emit_and_reloc_code:
+ *
+ * Emit the native code in CODE, handling relocations along the way. If GOT_ONLY
+ * is true, calls are made through the GOT too. This is used for emitting trampolines
+ * in full-aot mode, since calls made from trampolines couldn't go through the PLT,
+ * since trampolines are needed to make PTL work.
+ */
static void
-add_wrappers (MonoAotCompile *acfg)
+emit_and_reloc_code (MonoAotCompile *acfg, MonoMethod *method, guint8 *code, guint32 code_len, MonoJumpInfo *relocs, gboolean got_only)
{
- MonoMethod *method, *m;
- int i, j, nallocators;
- MonoMethodSignature *sig, *csig;
- guint32 token;
-
- /*
- * FIXME: Instead of AOTing all the wrappers, it might be better to redesign them
- * so there is only one wrapper of a given type, or inlining their contents into their
- * callers.
- */
+ int i, pindex, start_index, method_index;
+ GPtrArray *patches;
+ MonoJumpInfo *patch_info;
+ MonoMethodHeader *header;
+ gboolean skip, direct_call;
+ guint32 got_slot;
+ char direct_call_target [128];
- /*
- * FIXME: This depends on the fact that different wrappers have different
- * names.
- */
+ if (method) {
+ header = mono_method_get_header (method);
- /* FIXME: Collect these automatically */
+ method_index = get_method_index (acfg, method);
+ }
- /* Runtime invoke wrappers */
+ /* Collect and sort relocations */
+ patches = g_ptr_array_new ();
+ for (patch_info = relocs; patch_info; patch_info = patch_info->next)
+ g_ptr_array_add (patches, patch_info);
+ g_ptr_array_sort (patches, compare_patches);
- /* void runtime-invoke () [.cctor] */
- csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
- csig->ret = &mono_defaults.void_class->byval_arg;
- add_method (acfg, get_runtime_invoke_sig (csig));
+ start_index = 0;
+ for (i = 0; i < code_len; i++) {
+ patch_info = NULL;
+ for (pindex = start_index; pindex < patches->len; ++pindex) {
+ patch_info = g_ptr_array_index (patches, pindex);
+ if (patch_info->ip.i >= i)
+ break;
+ }
- /* void runtime-invoke () [Finalize] */
- csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
- csig->hasthis = 1;
- csig->ret = &mono_defaults.void_class->byval_arg;
- add_method (acfg, get_runtime_invoke_sig (csig));
+#ifdef MONO_ARCH_AOT_SUPPORTED
+ skip = FALSE;
+ if (patch_info && (patch_info->ip.i == i) && (pindex < patches->len)) {
+ start_index = pindex;
- /* void runtime-invoke (string) [exception ctor] */
- csig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
- csig->hasthis = 1;
- csig->ret = &mono_defaults.void_class->byval_arg;
- csig->params [0] = &mono_defaults.string_class->byval_arg;
- add_method (acfg, get_runtime_invoke_sig (csig));
-
- /* void runtime-invoke (string, string) [exception ctor] */
- csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
- csig->hasthis = 1;
- csig->ret = &mono_defaults.void_class->byval_arg;
- csig->params [0] = &mono_defaults.string_class->byval_arg;
- csig->params [1] = &mono_defaults.string_class->byval_arg;
- add_method (acfg, get_runtime_invoke_sig (csig));
-
- /* string runtime-invoke () [Exception.ToString ()] */
- csig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
- csig->hasthis = 1;
- csig->ret = &mono_defaults.string_class->byval_arg;
- add_method (acfg, get_runtime_invoke_sig (csig));
-
- /* void runtime-invoke (string, Exception) [exception ctor] */
- csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
- csig->hasthis = 1;
- csig->ret = &mono_defaults.void_class->byval_arg;
- csig->params [0] = &mono_defaults.string_class->byval_arg;
- csig->params [1] = &mono_defaults.exception_class->byval_arg;
- add_method (acfg, get_runtime_invoke_sig (csig));
+ switch (patch_info->type) {
+ case MONO_PATCH_INFO_NONE:
+ break;
+ case MONO_PATCH_INFO_GOT_OFFSET: {
+ int code_size;
+
+ arch_emit_got_offset (acfg, code + i, &code_size);
+ i += code_size - 1;
+ skip = TRUE;
+ break;
+ }
+ default: {
+ /*
+ * If this patch is a call, try emitting a direct call instead of
+ * through a PLT entry. This is possible if the called method is in
+ * the same assembly and requires no initialization.
+ */
+ direct_call = FALSE;
+ if (!got_only && (patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == method->klass->image)) {
+ MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
+ if (callee_cfg) {
+ gboolean direct_callable = TRUE;
- /* Assembly runtime-invoke (string, bool) [DoAssemblyResolve] */
- csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
- csig->hasthis = 1;
- csig->ret = &(mono_class_from_name (
- mono_defaults.corlib, "System.Reflection", "Assembly"))->byval_arg;
- csig->params [0] = &mono_defaults.string_class->byval_arg;
- csig->params [1] = &mono_defaults.boolean_class->byval_arg;
- add_method (acfg, get_runtime_invoke_sig (csig));
+ if (direct_callable && !(!callee_cfg->has_got_slots && (callee_cfg->method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)))
+ direct_callable = FALSE;
+ if ((callee_cfg->method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) && method->wrapper_type != MONO_WRAPPER_SYNCHRONIZED)
+ // FIXME: Maybe call the wrapper directly ?
+ direct_callable = FALSE;
+ if (direct_callable) {
+ //printf ("DIRECT: %s %s\n", method ? mono_method_full_name (method, TRUE) : "", mono_method_full_name (callee_cfg->method, TRUE));
+ direct_call = TRUE;
+ sprintf (direct_call_target, ".Lm_%x", get_method_index (acfg, callee_cfg->orig_method));
+ patch_info->type = MONO_PATCH_INFO_NONE;
+ acfg->stats.direct_calls ++;
+ }
+ }
- for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
- MonoMethod *method;
- guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
- gboolean skip = FALSE;
+ acfg->stats.all_calls ++;
+ }
- method = mono_get_method (acfg->image, token, NULL);
+ if (!got_only && !direct_call) {
+ int plt_offset = get_plt_offset (acfg, patch_info);
+ if (plt_offset != -1) {
+ /* This patch has a PLT entry, so we must emit a call to the PLT entry */
+ direct_call = TRUE;
+ sprintf (direct_call_target, ".Lp_%d", plt_offset);
+
+ /* Nullify the patch */
+ patch_info->type = MONO_PATCH_INFO_NONE;
+ }
+ }
- if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
- (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
- (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
- skip = TRUE;
+ if (direct_call) {
+ int call_size;
- if (method->is_generic || method->klass->generic_container)
- skip = TRUE;
+ arch_emit_direct_call (acfg, direct_call_target, &call_size);
+ i += call_size - 1;
+ } else {
+ int code_size;
- /* Skip methods which can not be handled by get_runtime_invoke () */
- sig = mono_method_signature (method);
- if ((sig->ret->type == MONO_TYPE_PTR) ||
- (sig->ret->type == MONO_TYPE_TYPEDBYREF))
- skip = TRUE;
+ got_slot = get_got_offset (acfg, patch_info);
- for (j = 0; j < sig->param_count; j++) {
- if (sig->params [j]->type == MONO_TYPE_TYPEDBYREF)
+ arch_emit_got_access (acfg, code + i, got_slot, &code_size);
+ i += code_size - 1;
+ }
skip = TRUE;
+ }
+ }
}
+#endif /* MONO_ARCH_AOT_SUPPORTED */
- if (!skip)
- add_method (acfg, mono_marshal_get_runtime_invoke (method));
- }
-
- if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
- MonoMethodDesc *desc;
- MonoMethod *orig_method;
-
- /* JIT icall wrappers */
- /* FIXME: locking */
- g_hash_table_foreach (mono_get_jit_icall_info (), add_jit_icall_wrapper, acfg);
-
- /* Managed Allocators */
- nallocators = mono_gc_get_managed_allocator_types ();
- for (i = 0; i < nallocators; ++i) {
- m = mono_gc_get_managed_allocator_by_type (i);
- if (m)
- add_method (acfg, m);
- }
-
- /* stelemref */
- add_method (acfg, mono_marshal_get_stelemref ());
-
- /* Monitor Enter/Exit */
- desc = mono_method_desc_new ("Monitor:Enter", FALSE);
- orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
- g_assert (orig_method);
- mono_method_desc_free (desc);
- method = mono_monitor_get_fast_path (orig_method);
- if (method)
- add_method (acfg, method);
-
- desc = mono_method_desc_new ("Monitor:Exit", FALSE);
- orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
- g_assert (orig_method);
- mono_method_desc_free (desc);
- method = mono_monitor_get_fast_path (orig_method);
- if (method)
- add_method (acfg, method);
- }
-
- /* remoting-invoke wrappers */
- for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
- MonoMethodSignature *sig;
-
- token = MONO_TOKEN_METHOD_DEF | (i + 1);
- method = mono_get_method (acfg->image, token, NULL);
-
- sig = mono_method_signature (method);
-
- if (sig->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class) &&
- !(method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
- m = mono_marshal_get_remoting_invoke_with_check (method);
+ if (!skip) {
+ /* Find next patch */
+ patch_info = NULL;
+ for (pindex = start_index; pindex < patches->len; ++pindex) {
+ patch_info = g_ptr_array_index (patches, pindex);
+ if (patch_info->ip.i >= i)
+ break;
+ }
- add_method (acfg, m);
+ /* Try to emit multiple bytes at once */
+ if (pindex < patches->len && patch_info->ip.i > i) {
+ emit_bytes (acfg, code + i, patch_info->ip.i - i);
+ i = patch_info->ip.i - 1;
+ } else {
+ emit_bytes (acfg, code + i, 1);
+ }
}
}
+}
- /* delegate-invoke wrappers */
- for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
- MonoClass *klass;
-
- token = MONO_TOKEN_TYPE_DEF | (i + 1);
- klass = mono_class_get (acfg->image, token);
+static void
+emit_method_code (MonoAotCompile *acfg, MonoCompile *cfg)
+{
+ MonoMethod *method;
+ int method_index;
+ guint8 *code;
+ char symbol [128];
+ int func_alignment = 16;
+ MonoMethodHeader *header;
- if (klass->delegate && klass != mono_defaults.delegate_class && klass != mono_defaults.multicastdelegate_class && !klass->generic_container) {
- method = mono_get_delegate_invoke (klass);
+ method = cfg->orig_method;
+ code = cfg->native_code;
+ header = mono_method_get_header (method);
- m = mono_marshal_get_delegate_invoke (method, NULL);
+ method_index = get_method_index (acfg, method);
- add_method (acfg, m);
+ /* Make the labels local */
+ sprintf (symbol, ".Lm_%x", method_index);
- method = mono_class_get_method_from_name_flags (klass, "BeginInvoke", -1, 0);
- add_method (acfg, mono_marshal_get_delegate_begin_invoke (method));
+ emit_alignment (acfg, func_alignment);
+ emit_label (acfg, symbol);
- method = mono_class_get_method_from_name_flags (klass, "EndInvoke", -1, 0);
- add_method (acfg, mono_marshal_get_delegate_end_invoke (method));
+ if (acfg->aot_opts.write_symbols && !acfg->aot_opts.nodebug) {
+ char *name1, *name2;
+ int i, j, len;
+
+ name1 = mono_method_full_name (method, TRUE);
+ len = strlen (name1);
+ name2 = malloc (len + 1);
+ j = 0;
+ for (i = 0; i < len; ++i) {
+ if (isalnum (name1 [i])) {
+ name2 [j ++] = name1 [i];
+ } else if (name1 [i] == ' ' && name1 [i + 1] == '(' && name1 [i + 2] == ')') {
+ i += 2;
+ } else if (name1 [i] == '(' || name1 [i] == ')') {
+ } else
+ name2 [j ++] = '_';
}
+ name2 [j] = '\0';
+ sprintf (symbol, ".Lme_%x", method_index);
+ emit_local_symbol (acfg, name2, symbol, TRUE);
+ emit_label (acfg, name2);
+ g_free (name1);
+ g_free (name2);
}
- /* Synchronized wrappers */
- for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
- token = MONO_TOKEN_METHOD_DEF | (i + 1);
- method = mono_get_method (acfg->image, token, NULL);
-
- if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
- add_method (acfg, mono_marshal_get_synchronized_wrapper (method));
- }
+ if (cfg->verbose_level > 0)
+ g_print ("Method %s emitted as %s\n", mono_method_full_name (method, TRUE), symbol);
-#if 0
- /* static rgctx wrappers */
- /* FIXME: Each wrapper belongs to a given instantiation of a generic method */
- for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
- token = MONO_TOKEN_METHOD_DEF | (i + 1);
- method = mono_get_method (acfg->image, token, NULL);
+ acfg->stats.code_size += cfg->code_len;
- if (((method->flags & METHOD_ATTRIBUTE_STATIC) ||
- (method->is_inflated && mono_method_get_context (method)->method_inst)) &&
- mono_class_generic_sharing_enabled (method->klass) &&
- mono_method_is_generic_sharable_impl (method, FALSE)) {
- m = mono_marshal_get_static_rgctx_invoke (method);
- add_method (acfg, m);
- }
- }
-#endif
+ acfg->cfgs [method_index]->got_offset = acfg->got_offset;
- /* pinvoke wrappers */
- for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
- MonoMethod *method;
- guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
+ emit_and_reloc_code (acfg, method, code, cfg->code_len, cfg->patch_info, FALSE);
- method = mono_get_method (acfg->image, token, NULL);
+ emit_line (acfg);
- if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
- add_method (acfg, mono_marshal_get_native_wrapper (method, TRUE, TRUE));
- }
+ sprintf (symbol, ".Lme_%x", method_index);
+ emit_label (acfg, symbol);
}
-static gboolean
-has_type_vars (MonoClass *klass)
+/**
+ * encode_patch:
+ *
+ * Encode PATCH_INFO into its disk representation.
+ */
+static void
+encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info, guint8 *buf, guint8 **endbuf)
{
- if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
- return TRUE;
- if (klass->rank)
- return has_type_vars (klass->element_class);
- if (klass->generic_class) {
- MonoGenericContext *context = &klass->generic_class->context;
- if (context->class_inst) {
- int i;
+ guint8 *p = buf;
- for (i = 0; i < context->class_inst->type_argc; ++i)
- if (has_type_vars (mono_class_from_mono_type (context->class_inst->type_argv [i])))
- return TRUE;
- }
- }
- return FALSE;
-}
-
-static gboolean
-method_has_type_vars (MonoMethod *method)
-{
- if (has_type_vars (method->klass))
- return TRUE;
-
- if (method->is_inflated) {
- MonoGenericContext *context = mono_method_get_context (method);
- if (context->method_inst) {
- int i;
+ switch (patch_info->type) {
+ case MONO_PATCH_INFO_NONE:
+ break;
+ case MONO_PATCH_INFO_IMAGE:
+ encode_value (get_image_index (acfg, patch_info->data.image), p, &p);
+ break;
+ case MONO_PATCH_INFO_METHOD_REL:
+ encode_value ((gint)patch_info->data.offset, p, &p);
+ break;
+ case MONO_PATCH_INFO_SWITCH: {
+ gpointer *table = (gpointer *)patch_info->data.table->table;
+ int k;
- for (i = 0; i < context->method_inst->type_argc; ++i)
- if (has_type_vars (mono_class_from_mono_type (context->method_inst->type_argv [i])))
- return TRUE;
- }
+ encode_value (patch_info->data.table->table_size, p, &p);
+ for (k = 0; k < patch_info->data.table->table_size; k++)
+ encode_value ((int)(gssize)table [k], p, &p);
+ break;
}
- return FALSE;
-}
-
-/*
- * add_generic_instances:
- *
- * Add instances referenced by the METHODSPEC/TYPESPEC table.
- */
-static void
-add_generic_instances (MonoAotCompile *acfg)
-{
- int i;
- guint32 token;
- MonoMethod *method;
- MonoGenericContext *context;
-
- for (i = 0; i < acfg->image->tables [MONO_TABLE_METHODSPEC].rows; ++i) {
- token = MONO_TOKEN_METHOD_SPEC | (i + 1);
- method = mono_get_method (acfg->image, token, NULL);
+ case MONO_PATCH_INFO_METHODCONST:
+ case MONO_PATCH_INFO_METHOD:
+ case MONO_PATCH_INFO_METHOD_JUMP:
+ case MONO_PATCH_INFO_ICALL_ADDR:
+ case MONO_PATCH_INFO_METHOD_RGCTX:
+ encode_method_ref (acfg, patch_info->data.method, p, &p);
+ break;
+ case MONO_PATCH_INFO_INTERNAL_METHOD:
+ case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
+ guint32 len = strlen (patch_info->data.name);
- context = mono_method_get_context (method);
- if (context && ((context->class_inst && context->class_inst->is_open) ||
- (context->method_inst && context->method_inst->is_open)))
- continue;
+ encode_value (len, p, &p);
- if (method->klass->image != acfg->image)
- continue;
+ memcpy (p, patch_info->data.name, len);
+ p += len;
+ *p++ = '\0';
+ break;
+ }
+ case MONO_PATCH_INFO_LDSTR: {
+ guint32 image_index = get_image_index (acfg, patch_info->data.token->image);
+ guint32 token = patch_info->data.token->token;
+ g_assert (mono_metadata_token_code (token) == MONO_TOKEN_STRING);
+ encode_value (image_index, p, &p);
+ encode_value (patch_info->data.token->token - MONO_TOKEN_STRING, p, &p);
+ break;
+ }
+ case MONO_PATCH_INFO_RVA:
+ case MONO_PATCH_INFO_DECLSEC:
+ case MONO_PATCH_INFO_LDTOKEN:
+ case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
+ encode_value (get_image_index (acfg, patch_info->data.token->image), p, &p);
+ encode_value (patch_info->data.token->token, p, &p);
+ encode_value (patch_info->data.token->has_context, p, &p);
+ if (patch_info->data.token->has_context)
+ encode_generic_context (acfg, &patch_info->data.token->context, p, &p);
+ break;
+ case MONO_PATCH_INFO_EXC_NAME: {
+ MonoClass *ex_class;
- if (mono_method_is_generic_sharable_impl (method, FALSE))
- /* Already added */
- continue;
+ ex_class =
+ mono_class_from_name (mono_defaults.exception_class->image,
+ "System", patch_info->data.target);
+ g_assert (ex_class);
+ encode_klass_ref (acfg, ex_class, p, &p);
+ break;
+ }
+ case MONO_PATCH_INFO_R4:
+ encode_value (*((guint32 *)patch_info->data.target), p, &p);
+ break;
+ case MONO_PATCH_INFO_R8:
+ encode_value (*((guint32 *)patch_info->data.target), p, &p);
+ encode_value (*(((guint32 *)patch_info->data.target) + 1), p, &p);
+ break;
+ case MONO_PATCH_INFO_VTABLE:
+ case MONO_PATCH_INFO_CLASS:
+ case MONO_PATCH_INFO_IID:
+ case MONO_PATCH_INFO_ADJUSTED_IID:
+ encode_klass_ref (acfg, patch_info->data.klass, p, &p);
+ break;
+ case MONO_PATCH_INFO_CLASS_INIT:
+ case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
+ encode_klass_ref (acfg, patch_info->data.klass, p, &p);
+ break;
+ case MONO_PATCH_INFO_FIELD:
+ case MONO_PATCH_INFO_SFLDA:
+ encode_field_info (acfg, patch_info->data.field, p, &p);
+ break;
+ case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
+ break;
+ case MONO_PATCH_INFO_RGCTX_FETCH: {
+ MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
- add_extra_method (acfg, method);
+ encode_method_ref (acfg, entry->method, p, &p);
+ encode_value (entry->in_mrgctx, p, &p);
+ encode_value (entry->info_type, p, &p);
+ encode_value (entry->data->type, p, &p);
+ encode_patch (acfg, entry->data, p, &p);
+ break;
+ }
+ case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
+ case MONO_PATCH_INFO_MONITOR_ENTER:
+ case MONO_PATCH_INFO_MONITOR_EXIT:
+ break;
+ default:
+ g_warning ("unable to handle jump info %d", patch_info->type);
+ g_assert_not_reached ();
}
- for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
- MonoClass *klass;
- gpointer iter;
+ *endbuf = p;
+}
- token = MONO_TOKEN_TYPE_SPEC | (i + 1);
+static void
+encode_patch_list (MonoAotCompile *acfg, GPtrArray *patches, int n_patches, int first_got_offset, guint8 *buf, guint8 **endbuf)
+{
+ guint8 *p = buf;
+ guint32 pindex;
+ MonoJumpInfo *patch_info;
- klass = mono_class_get (acfg->image, token);
- if (!klass)
- continue;
- mono_class_init (klass);
+ encode_value (n_patches, p, &p);
- if (klass->generic_class && klass->generic_class->context.class_inst->is_open)
- continue;
+ if (n_patches)
+ encode_value (first_got_offset, p, &p);
- if (has_type_vars (klass))
- continue;
+ for (pindex = 0; pindex < patches->len; ++pindex) {
+ patch_info = g_ptr_array_index (patches, pindex);
- if (!klass->generic_class && !klass->rank)
+ if (patch_info->type == MONO_PATCH_INFO_NONE)
+ /* Nothing to do */
continue;
- /*
- * Add rgctx wrappers for cctors since those are called by the runtime, so
- * there is no methodspec for them. This is needed even for shared classes,
- * since rgctx wrappers belong to inflated methods.
- */
- method = mono_class_get_cctor (klass);
- if (method)
- add_extra_method (acfg, mono_marshal_get_static_rgctx_invoke (method));
-
- iter = NULL;
- while ((method = mono_class_get_methods (klass, &iter))) {
- if (mono_method_is_generic_sharable_impl (method, FALSE))
- /* Already added */
- continue;
-
- if (method->is_generic)
- /* FIXME: */
- continue;
-
- /*
- * FIXME: Instances which are referenced by these methods are not added,
- * for example Array.Resize<int> for List<int>.Add ().
- */
- add_extra_method (acfg, method);
+ encode_value (patch_info->type, p, &p);
+ if (mono_aot_is_shared_got_patch (patch_info)) {
+ guint32 offset = get_got_offset (acfg, patch_info);
+ encode_value (offset, p, &p);
+ } else {
+ encode_patch (acfg, patch_info, p, &p);
}
}
+
+ *endbuf = p;
}
static void
-emit_and_reloc_code (MonoAotCompile *acfg, MonoMethod *method, guint8 *code, guint32 code_len, MonoJumpInfo *relocs, gboolean got_only)
+emit_method_info (MonoAotCompile *acfg, MonoCompile *cfg)
{
- int i, pindex, start_index, method_index;
+ MonoMethod *method;
+ GList *l;
+ int pindex, buf_size, n_patches;
+ guint8 *code;
+ char symbol [128];
GPtrArray *patches;
MonoJumpInfo *patch_info;
MonoMethodHeader *header;
- gboolean skip, direct_call;
- guint32 got_slot;
- char direct_call_target [128];
+ guint32 method_index;
+ guint8 *p, *buf;
+ guint32 first_got_offset;
- if (method) {
- header = mono_method_get_header (method);
+ method = cfg->orig_method;
+ code = cfg->native_code;
+ header = mono_method_get_header (method);
- method_index = get_method_index (acfg, method);
- }
+ method_index = get_method_index (acfg, method);
- /* Collect and sort relocations */
+ /* Make the labels local */
+ sprintf (symbol, ".Lm_%x_p", method_index);
+
+ /* Sort relocations */
patches = g_ptr_array_new ();
- for (patch_info = relocs; patch_info; patch_info = patch_info->next)
+ for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next)
g_ptr_array_add (patches, patch_info);
g_ptr_array_sort (patches, compare_patches);
- start_index = 0;
- for (i = 0; i < code_len; i++) {
- patch_info = NULL;
- for (pindex = start_index; pindex < patches->len; ++pindex) {
- patch_info = g_ptr_array_index (patches, pindex);
- if (patch_info->ip.i >= i)
- break;
- }
-
-#ifdef MONO_ARCH_AOT_SUPPORTED
- skip = FALSE;
- if (patch_info && (patch_info->ip.i == i) && (pindex < patches->len)) {
- start_index = pindex;
+ first_got_offset = acfg->cfgs [method_index]->got_offset;
- switch (patch_info->type) {
- case MONO_PATCH_INFO_NONE:
- break;
- case MONO_PATCH_INFO_GOT_OFFSET: {
- guint32 offset = mono_arch_get_patch_offset (code + i);
- emit_bytes (acfg, code + i, offset);
- emit_symbol_diff (acfg, "got", ".", offset);
+ /**********************/
+ /* Encode method info */
+ /**********************/
- i += offset + 4 - 1;
- skip = TRUE;
- break;
- }
- default: {
- if (!is_got_patch (patch_info->type))
- break;
+ buf_size = (patches->len < 1000) ? 40960 : 40960 + (patches->len * 64);
+ p = buf = g_malloc (buf_size);
- /*
- * If this patch is a call, try emitting a direct call instead of
- * through a PLT entry. This is possible if the called method is in
- * the same assembly and requires no initialization.
- */
- direct_call = FALSE;
- if (!got_only && (patch_info->type == MONO_PATCH_INFO_METHOD) && (patch_info->data.method->klass->image == method->klass->image)) {
- MonoCompile *callee_cfg = g_hash_table_lookup (acfg->method_to_cfg, patch_info->data.method);
- if (callee_cfg) {
- gboolean direct_callable = TRUE;
+ if (mono_class_get_cctor (method->klass))
+ encode_klass_ref (acfg, method->klass, p, &p);
+ else
+ /* Not needed when loading the method */
+ encode_value (0, p, &p);
- if (direct_callable && !(!callee_cfg->has_got_slots && (callee_cfg->method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)))
- direct_callable = FALSE;
- if ((callee_cfg->method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) && method->wrapper_type != MONO_WRAPPER_SYNCHRONIZED)
- // FIXME: Maybe call the wrapper directly ?
- direct_callable = FALSE;
- if (direct_callable) {
- //printf ("DIRECT: %s %s\n", method ? mono_method_full_name (method, TRUE) : "", mono_method_full_name (callee_cfg->method, TRUE));
- direct_call = TRUE;
- sprintf (direct_call_target, ".Lm_%x", get_method_index (acfg, callee_cfg->orig_method));
- patch_info->type = MONO_PATCH_INFO_NONE;
- acfg->stats.direct_calls ++;
- }
- }
-
- acfg->stats.all_calls ++;
- }
+ /* String table */
+ if (cfg->opt & MONO_OPT_SHARED) {
+ encode_value (g_list_length (cfg->ldstr_list), p, &p);
+ for (l = cfg->ldstr_list; l; l = l->next) {
+ encode_value ((long)l->data, p, &p);
+ }
+ }
+ else
+ /* Used only in shared mode */
+ g_assert (!cfg->ldstr_list);
- if (!got_only && !direct_call) {
- int plt_offset = get_plt_offset (acfg, patch_info);
- if (plt_offset != -1) {
- /* This patch has a PLT entry, so we must emit a call to the PLT entry */
- direct_call = TRUE;
- sprintf (direct_call_target, ".Lp_%d", plt_offset);
+ n_patches = 0;
+ for (pindex = 0; pindex < patches->len; ++pindex) {
+ patch_info = g_ptr_array_index (patches, pindex);
- /* Nullify the patch */
- patch_info->type = MONO_PATCH_INFO_NONE;
- }
- }
+ if ((patch_info->type == MONO_PATCH_INFO_GOT_OFFSET) ||
+ (patch_info->type == MONO_PATCH_INFO_NONE)) {
+ patch_info->type = MONO_PATCH_INFO_NONE;
+ /* Nothing to do */
+ continue;
+ }
- if (direct_call) {
-#if defined(__i386__) || defined(__x86_64__)
- g_assert (code [i] == 0xe8);
- /* Need to make sure this is exactly 5 bytes long */
- emit_byte (acfg, '\xe8');
- emit_symbol_diff (acfg, direct_call_target, ".", -4);
- i += 4;
-#elif defined(__arm__)
-#ifdef USE_BIN_WRITER
- {
- guint8 buf [4];
- guint8 *code;
-
- code = buf;
- ARM_BL (code, 0);
-
- bin_writer_emit_reloc (acfg, R_ARM_CALL, direct_call_target, -8);
- emit_bytes (acfg, buf, 4);
- }
-#else
- asm_writer_emit_unset_mode (acfg);
- fprintf (acfg->fp, "bl %s\n", direct_call_target);
-#endif
- i += 4 - 1;
-#else
- g_assert_not_reached ();
-#endif
- } else {
- got_slot = get_got_offset (acfg, patch_info);
+ if ((patch_info->type == MONO_PATCH_INFO_IMAGE) && (patch_info->data.image == acfg->image)) {
+ /* Stored in a GOT slot initialized at module load time */
+ patch_info->type = MONO_PATCH_INFO_NONE;
+ continue;
+ }
- emit_bytes (acfg, code + i, mono_arch_get_patch_offset (code + i));
-#ifdef __x86_64__
- emit_symbol_diff (acfg, "got", ".", (unsigned int) ((got_slot * sizeof (gpointer)) - 4));
-#elif defined(__i386__)
- emit_int32 (acfg, (unsigned int) ((got_slot * sizeof (gpointer))));
-#elif defined(__arm__)
- emit_symbol_diff (acfg, "got", ".", (unsigned int) ((got_slot * sizeof (gpointer))) - 12);
-#else
- g_assert_not_reached ();
-#endif
-
- i += mono_arch_get_patch_offset (code + i) + 4 - 1;
- }
- skip = TRUE;
- }
- }
+ if (is_plt_patch (patch_info)) {
+ /* Calls are made through the PLT */
+ patch_info->type = MONO_PATCH_INFO_NONE;
+ continue;
}
-#endif /* MONO_ARCH_AOT_SUPPORTED */
- if (!skip) {
- /* Find next patch */
- patch_info = NULL;
- for (pindex = start_index; pindex < patches->len; ++pindex) {
- patch_info = g_ptr_array_index (patches, pindex);
- if (patch_info->ip.i >= i)
- break;
- }
+ n_patches ++;
+ }
- /* Try to emit multiple bytes at once */
- if (pindex < patches->len && patch_info->ip.i > i) {
- emit_bytes (acfg, code + i, patch_info->ip.i - i);
- i = patch_info->ip.i - 1;
- } else {
- emit_bytes (acfg, code + i, 1);
- }
- }
+ if (n_patches)
+ g_assert (cfg->has_got_slots);
+
+ encode_patch_list (acfg, patches, n_patches, first_got_offset, p, &p);
+
+ acfg->stats.info_size += p - buf;
+
+ /* Emit method info */
+
+ emit_label (acfg, symbol);
+
+ g_assert (p - buf < buf_size);
+ emit_bytes (acfg, buf, p - buf);
+ g_free (buf);
+}
+
+static guint32
+get_unwind_info_offset (MonoAotCompile *acfg, guint8 *encoded, guint32 encoded_len)
+{
+ guint32 cache_index;
+ guint32 offset;
+
+ /* Reuse the unwind module to canonize and store unwind info entries */
+ cache_index = mono_cache_unwind_info (encoded, encoded_len);
+
+ /* Use +/- 1 to distinguish 0s from missing entries */
+ offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1)));
+ if (offset)
+ return offset - 1;
+ else {
+ guint8 buf [16];
+ guint8 *p;
+
+ /*
+ * It would be easier to use assembler symbols, but the caller needs an
+ * offset now.
+ */
+ offset = acfg->unwind_info_offset;
+ g_hash_table_insert (acfg->unwind_info_offsets, GUINT_TO_POINTER (cache_index + 1), GUINT_TO_POINTER (offset + 1));
+ g_ptr_array_add (acfg->unwind_ops, GUINT_TO_POINTER (cache_index));
+
+ p = buf;
+ encode_value (encoded_len, p, &p);
+
+ acfg->unwind_info_offset += encoded_len + (p - buf);
+ return offset;
}
}
static void
-emit_method_code (MonoAotCompile *acfg, MonoCompile *cfg)
+emit_exception_debug_info (MonoAotCompile *acfg, MonoCompile *cfg)
{
MonoMethod *method;
- int method_index;
+ int k, buf_size, method_index;
+ guint32 debug_info_size;
guint8 *code;
char symbol [128];
- int func_alignment = 16;
MonoMethodHeader *header;
+ guint8 *p, *buf, *debug_info;
+ MonoJitInfo *jinfo = cfg->jit_info;
+ guint32 flags;
+ gboolean use_unwind_ops = FALSE;
method = cfg->orig_method;
code = cfg->native_code;
method_index = get_method_index (acfg, method);
/* Make the labels local */
- sprintf (symbol, ".Lm_%x", method_index);
+ sprintf (symbol, ".Le_%x_p", method_index);
- emit_alignment (acfg, func_alignment);
- emit_label (acfg, symbol);
+ if (!acfg->aot_opts.nodebug) {
+ mono_debug_serialize_debug_info (cfg, &debug_info, &debug_info_size);
+ } else {
+ debug_info = NULL;
+ debug_info_size = 0;
+ }
- if (acfg->aot_opts.write_symbols && acfg->use_bin_writer) {
- char *full_name;
- /* Emit a local symbol into the symbol table */
- full_name = mono_method_full_name (method, TRUE);
- sprintf (symbol, ".Lme_%x", method_index);
- emit_local_symbol (acfg, full_name, symbol, TRUE);
- emit_label (acfg, full_name);
- g_free (full_name);
+ buf_size = header->num_clauses * 256 + debug_info_size + 1024;
+ p = buf = g_malloc (buf_size);
+
+#ifdef MONO_ARCH_HAVE_XP_UNWIND
+ use_unwind_ops = cfg->unwind_ops != NULL;
+#endif
+
+ flags = (jinfo->has_generic_jit_info ? 1 : 0) | (use_unwind_ops ? 2 : 0);
+
+ encode_value (jinfo->code_size, p, &p);
+ encode_value (flags, p, &p);
+
+ if (use_unwind_ops) {
+ guint32 encoded_len;
+ guint8 *encoded;
+
+ /*
+ * This is a duplicate of the data in the .debug_frame section, but that
+ * section cannot be accessed using the dl interface.
+ */
+ encoded = mono_unwind_ops_encode (cfg->unwind_ops, &encoded_len);
+ encode_value (get_unwind_info_offset (acfg, encoded, encoded_len), p, &p);
+ g_free (encoded);
+ } else {
+ encode_value (jinfo->used_regs, p, &p);
}
- if (cfg->verbose_level > 0)
- g_print ("Method %s emitted as %s\n", mono_method_full_name (method, TRUE), symbol);
+ /* Exception table */
+ if (header->num_clauses) {
+ for (k = 0; k < header->num_clauses; ++k) {
+ MonoJitExceptionInfo *ei = &jinfo->clauses [k];
- acfg->stats.code_size += cfg->code_len;
+ encode_value (ei->exvar_offset, p, &p);
- acfg->cfgs [method_index]->got_offset = acfg->got_offset;
+ if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER)
+ encode_value ((gint)((guint8*)ei->data.filter - code), p, &p);
- emit_and_reloc_code (acfg, method, code, cfg->code_len, cfg->patch_info, FALSE);
+ encode_value ((gint)((guint8*)ei->try_start - code), p, &p);
+ encode_value ((gint)((guint8*)ei->try_end - code), p, &p);
+ encode_value ((gint)((guint8*)ei->handler_start - code), p, &p);
+ }
+ }
- emit_line (acfg);
+ if (jinfo->has_generic_jit_info) {
+ MonoGenericJitInfo *gi = mono_jit_info_get_generic_jit_info (jinfo);
+
+ encode_value (gi->has_this ? 1 : 0, p, &p);
+ encode_value (gi->this_reg, p, &p);
+ encode_value (gi->this_offset, p, &p);
+
+ /*
+ * Need to encode jinfo->method too, since it is not equal to 'method'
+ * when using generic sharing.
+ */
+ encode_method_ref (acfg, jinfo->method, p, &p);
+ }
+
+ g_assert (debug_info_size < buf_size);
+
+ encode_value (debug_info_size, p, &p);
+ if (debug_info_size) {
+ memcpy (p, debug_info, debug_info_size);
+ p += debug_info_size;
+ g_free (debug_info);
+ }
+
+ acfg->stats.ex_info_size += p - buf;
+
+ /* Emit info */
- sprintf (symbol, ".Lme_%x", method_index);
emit_label (acfg, symbol);
+
+ g_assert (p - buf < buf_size);
+ emit_bytes (acfg, buf, p - buf);
+ g_free (buf);
}
-/**
- * encode_patch:
- *
- * Encode PATCH_INFO into its disk representation.
- */
static void
-encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info, guint8 *buf, guint8 **endbuf)
+emit_klass_info (MonoAotCompile *acfg, guint32 token)
{
- guint8 *p = buf;
+ MonoClass *klass = mono_class_get (acfg->image, token);
+ guint8 *p, *buf;
+ int i, buf_size;
+ char symbol [128];
+ gboolean no_special_static, cant_encode;
+ gpointer iter = NULL;
- switch (patch_info->type) {
- case MONO_PATCH_INFO_NONE:
- break;
- case MONO_PATCH_INFO_IMAGE:
- encode_value (get_image_index (acfg, patch_info->data.image), p, &p);
- break;
- case MONO_PATCH_INFO_METHOD_REL:
- encode_value ((gint)patch_info->data.offset, p, &p);
- break;
- case MONO_PATCH_INFO_SWITCH: {
- gpointer *table = (gpointer *)patch_info->data.table->table;
- int k;
+ buf_size = 10240 + (klass->vtable_size * 16);
+ p = buf = g_malloc (buf_size);
- encode_value (patch_info->data.table->table_size, p, &p);
- for (k = 0; k < patch_info->data.table->table_size; k++)
- encode_value ((int)(gssize)table [k], p, &p);
- break;
- }
- case MONO_PATCH_INFO_METHODCONST:
- case MONO_PATCH_INFO_METHOD:
- case MONO_PATCH_INFO_METHOD_JUMP:
- case MONO_PATCH_INFO_ICALL_ADDR:
- case MONO_PATCH_INFO_METHOD_RGCTX:
- encode_method_ref (acfg, patch_info->data.method, p, &p);
- break;
- case MONO_PATCH_INFO_INTERNAL_METHOD:
- case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
- guint32 len = strlen (patch_info->data.name);
+ g_assert (klass);
- encode_value (len, p, &p);
+ mono_class_init (klass);
- memcpy (p, patch_info->data.name, len);
- p += len;
- *p++ = '\0';
- break;
- }
- case MONO_PATCH_INFO_LDSTR: {
- guint32 image_index = get_image_index (acfg, patch_info->data.token->image);
- guint32 token = patch_info->data.token->token;
- g_assert (mono_metadata_token_code (token) == MONO_TOKEN_STRING);
- encode_value (image_index, p, &p);
- encode_value (patch_info->data.token->token - MONO_TOKEN_STRING, p, &p);
- break;
- }
- case MONO_PATCH_INFO_RVA:
- case MONO_PATCH_INFO_DECLSEC:
- case MONO_PATCH_INFO_LDTOKEN:
- case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
- encode_value (get_image_index (acfg, patch_info->data.token->image), p, &p);
- encode_value (patch_info->data.token->token, p, &p);
- encode_value (patch_info->data.token->has_context, p, &p);
- if (patch_info->data.token->has_context)
- encode_generic_context (acfg, &patch_info->data.token->context, p, &p);
- break;
- case MONO_PATCH_INFO_EXC_NAME: {
- MonoClass *ex_class;
+ mono_class_get_nested_types (klass, &iter);
+ g_assert (klass->nested_classes_inited);
- ex_class =
- mono_class_from_name (mono_defaults.exception_class->image,
- "System", patch_info->data.target);
- g_assert (ex_class);
- encode_klass_ref (acfg, ex_class, p, &p);
- break;
- }
- case MONO_PATCH_INFO_R4:
- encode_value (*((guint32 *)patch_info->data.target), p, &p);
- break;
- case MONO_PATCH_INFO_R8:
- encode_value (*((guint32 *)patch_info->data.target), p, &p);
- encode_value (*(((guint32 *)patch_info->data.target) + 1), p, &p);
- break;
- case MONO_PATCH_INFO_VTABLE:
- case MONO_PATCH_INFO_CLASS:
- case MONO_PATCH_INFO_IID:
- case MONO_PATCH_INFO_ADJUSTED_IID:
- encode_klass_ref (acfg, patch_info->data.klass, p, &p);
- break;
- case MONO_PATCH_INFO_CLASS_INIT:
- case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
- encode_klass_ref (acfg, patch_info->data.klass, p, &p);
- break;
- case MONO_PATCH_INFO_FIELD:
- case MONO_PATCH_INFO_SFLDA:
- encode_field_info (acfg, patch_info->data.field, p, &p);
- break;
- case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
- break;
- case MONO_PATCH_INFO_RGCTX_FETCH: {
- MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
+ mono_class_setup_vtable (klass);
- encode_method_ref (acfg, entry->method, p, &p);
- encode_value (entry->in_mrgctx, p, &p);
- encode_value (entry->info_type, p, &p);
- encode_value (entry->data->type, p, &p);
- encode_patch (acfg, entry->data, p, &p);
- break;
+ /*
+ * Emit all the information which is required for creating vtables so
+ * the runtime does not need to create the MonoMethod structures which
+ * take up a lot of space.
+ */
+
+ no_special_static = !mono_class_has_special_static_fields (klass);
+
+ /* Check whenever we have enough info to encode the vtable */
+ cant_encode = FALSE;
+ for (i = 0; i < klass->vtable_size; ++i) {
+ MonoMethod *cm = klass->vtable [i];
+
+ if (cm && mono_method_signature (cm)->is_inflated && !g_hash_table_lookup (acfg->token_info_hash, cm))
+ cant_encode = TRUE;
}
- case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
- case MONO_PATCH_INFO_MONITOR_ENTER:
- case MONO_PATCH_INFO_MONITOR_EXIT:
- break;
- default:
- g_warning ("unable to handle jump info %d", patch_info->type);
- g_assert_not_reached ();
+
+ if (klass->generic_container || cant_encode) {
+ encode_value (-1, p, &p);
+ } else {
+ encode_value (klass->vtable_size, p, &p);
+ encode_value ((no_special_static << 7) | (klass->has_static_refs << 6) | (klass->has_references << 5) | ((klass->blittable << 4) | ((klass->ext && klass->ext->nested_classes) ? 1 : 0) << 3) | (klass->has_cctor << 2) | (klass->has_finalize << 1) | klass->ghcimpl, p, &p);
+ if (klass->has_cctor)
+ encode_method_ref (acfg, mono_class_get_cctor (klass), p, &p);
+ if (klass->has_finalize)
+ encode_method_ref (acfg, mono_class_get_finalizer (klass), p, &p);
+
+ encode_value (klass->instance_size, p, &p);
+ encode_value (mono_class_data_size (klass), p, &p);
+ encode_value (klass->packing_size, p, &p);
+ encode_value (klass->min_align, p, &p);
+
+ for (i = 0; i < klass->vtable_size; ++i) {
+ MonoMethod *cm = klass->vtable [i];
+
+ if (cm)
+ encode_method_ref (acfg, cm, p, &p);
+ else
+ encode_value (0, p, &p);
+ }
}
- *endbuf = p;
+ acfg->stats.class_info_size += p - buf;
+
+ /* Emit the info */
+ sprintf (symbol, ".LK_I_%x", token - MONO_TOKEN_TYPE_DEF - 1);
+ emit_label (acfg, symbol);
+
+ g_assert (p - buf < buf_size);
+ emit_bytes (acfg, buf, p - buf);
+ g_free (buf);
}
+/*
+ * Calls made from AOTed code are routed through a table of jumps similar to the
+ * ELF PLT (Program Linkage Table). The differences are the following:
+ * - the ELF PLT entries make an indirect jump though the GOT so they expect the
+ * GOT pointer to be in EBX. We want to avoid this, so our table contains direct
+ * jumps. This means the jumps need to be patched when the address of the callee is
+ * known. Initially the PLT entries jump to code which transfers control to the
+ * AOT runtime through the first PLT entry.
+ */
static void
-encode_patch_list (MonoAotCompile *acfg, GPtrArray *patches, int n_patches, int first_got_offset, guint8 *buf, guint8 **endbuf)
+emit_plt (MonoAotCompile *acfg)
{
- guint8 *p = buf;
- guint32 last_offset, j, pindex;
- MonoJumpInfo *patch_info;
-
- encode_value (n_patches, p, &p);
-
- if (n_patches)
- encode_value (first_got_offset, p, &p);
+ char symbol [128];
+ int i;
- /* First encode the type+position table */
- last_offset = 0;
- j = 0;
- for (pindex = 0; pindex < patches->len; ++pindex) {
- guint32 offset;
- patch_info = g_ptr_array_index (patches, pindex);
-
- if (patch_info->type == MONO_PATCH_INFO_NONE)
- /* Nothing to do */
- continue;
+ emit_line (acfg);
+ sprintf (symbol, "plt");
- j ++;
- //printf ("T: %d O: %d.\n", patch_info->type, patch_info->ip.i);
- offset = patch_info->ip.i - last_offset;
- last_offset = patch_info->ip.i;
+ emit_section_change (acfg, ".text", 0);
+ emit_global (acfg, symbol, TRUE);
+#ifdef TARGET_X86
+ /* This section will be made read-write by the AOT loader */
+ emit_alignment (acfg, mono_pagesize ());
+#else
+ emit_alignment (acfg, 16);
+#endif
+ emit_label (acfg, symbol);
- /* Only the type is needed */
- *p = patch_info->type;
- p++;
- }
+ for (i = 0; i < acfg->plt_offset; ++i) {
+ char label [128];
- /* Then encode the other info */
- for (pindex = 0; pindex < patches->len; ++pindex) {
- patch_info = g_ptr_array_index (patches, pindex);
+ sprintf (label, ".Lp_%d", i);
+ emit_label (acfg, label);
- if (is_shared_got_patch (patch_info)) {
- guint32 offset = get_got_offset (acfg, patch_info);
- encode_value (offset, p, &p);
- } else {
- encode_patch (acfg, patch_info, p, &p);
- }
+ /*
+ * The first plt entry is used to transfer code to the AOT loader.
+ */
+ arch_emit_plt_entry (acfg, i);
}
- *endbuf = p;
+ sprintf (symbol, "plt_end");
+ emit_global (acfg, symbol, TRUE);
+ emit_label (acfg, symbol);
}
-static void
-emit_method_info (MonoAotCompile *acfg, MonoCompile *cfg)
+static G_GNUC_UNUSED void
+emit_trampoline (MonoAotCompile *acfg, const char *name, guint8 *code,
+ guint32 code_size, int got_offset, MonoJumpInfo *ji, GSList *unwind_ops)
{
- MonoMethod *method;
- GList *l;
- int pindex, buf_size, n_patches;
- guint8 *code;
- char symbol [128];
- GPtrArray *patches;
+ char symbol [256];
+ guint32 buf_size;
MonoJumpInfo *patch_info;
- MonoMethodHeader *header;
- guint32 method_index;
- guint8 *p, *buf;
- guint32 first_got_offset;
+ guint8 *buf, *p;
+ GPtrArray *patches;
- method = cfg->orig_method;
- code = cfg->native_code;
- header = mono_method_get_header (method);
+ /* Emit code */
- method_index = get_method_index (acfg, method);
+ sprintf (symbol, "%s", name);
- /* Make the labels local */
- sprintf (symbol, ".Lm_%x_p", method_index);
+ emit_section_change (acfg, ".text", 0);
+ emit_global (acfg, symbol, TRUE);
+ emit_alignment (acfg, 16);
+ emit_label (acfg, symbol);
+
+ sprintf (symbol, ".Lnamed_%s", name);
+ emit_label (acfg, symbol);
+
+ /*
+ * The code should access everything through the GOT, so we pass
+ * TRUE here.
+ */
+ emit_and_reloc_code (acfg, NULL, code, code_size, ji, TRUE);
+
+ /* Emit info */
/* Sort relocations */
patches = g_ptr_array_new ();
- for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next)
+ for (patch_info = ji; patch_info; patch_info = patch_info->next)
g_ptr_array_add (patches, patch_info);
g_ptr_array_sort (patches, compare_patches);
- first_got_offset = acfg->cfgs [method_index]->got_offset;
-
- /**********************/
- /* Encode method info */
- /**********************/
-
- buf_size = (patches->len < 1000) ? 40960 : 40960 + (patches->len * 64);
- p = buf = g_malloc (buf_size);
+ buf_size = patches->len * 128 + 128;
+ buf = g_malloc (buf_size);
+ p = buf;
- if (mono_class_get_cctor (method->klass))
- encode_klass_ref (acfg, method->klass, p, &p);
- else
- /* Not needed when loading the method */
- encode_value (0, p, &p);
+ encode_patch_list (acfg, patches, patches->len, got_offset, p, &p);
+ g_assert (p - buf < buf_size);
- /* String table */
- if (cfg->opt & MONO_OPT_SHARED) {
- encode_value (g_list_length (cfg->ldstr_list), p, &p);
- for (l = cfg->ldstr_list; l; l = l->next) {
- encode_value ((long)l->data, p, &p);
- }
- }
- else
- /* Used only in shared mode */
- g_assert (!cfg->ldstr_list);
+ sprintf (symbol, "%s_p", name);
- n_patches = 0;
- for (pindex = 0; pindex < patches->len; ++pindex) {
- patch_info = g_ptr_array_index (patches, pindex);
+ emit_section_change (acfg, ".text", 0);
+ emit_global (acfg, symbol, FALSE);
+ emit_label (acfg, symbol);
- if ((patch_info->type == MONO_PATCH_INFO_GOT_OFFSET) ||
- (patch_info->type == MONO_PATCH_INFO_NONE)) {
- patch_info->type = MONO_PATCH_INFO_NONE;
- /* Nothing to do */
- continue;
- }
+ emit_bytes (acfg, buf, p - buf);
- if ((patch_info->type == MONO_PATCH_INFO_IMAGE) && (patch_info->data.image == acfg->image)) {
- /* Stored in a GOT slot initialized at module load time */
- patch_info->type = MONO_PATCH_INFO_NONE;
- continue;
- }
+ /* Emit debug info */
+ if (unwind_ops) {
+ char symbol2 [256];
- if (is_plt_patch (patch_info)) {
- /* Calls are made through the PLT */
- patch_info->type = MONO_PATCH_INFO_NONE;
- continue;
- }
+ sprintf (symbol, "%s", name);
+ sprintf (symbol2, ".Lnamed_%s", name);
- n_patches ++;
+ if (acfg->dwarf)
+ mono_dwarf_writer_emit_trampoline (acfg->dwarf, symbol, symbol2, NULL, NULL, code_size, unwind_ops);
}
-
- if (n_patches)
- g_assert (cfg->has_got_slots);
-
- encode_patch_list (acfg, patches, n_patches, first_got_offset, p, &p);
-
- acfg->stats.info_size += p - buf;
-
- /* Emit method info */
-
- emit_label (acfg, symbol);
-
- g_assert (p - buf < buf_size);
- emit_bytes (acfg, buf, p - buf);
- g_free (buf);
}
static void
-emit_exception_debug_info (MonoAotCompile *acfg, MonoCompile *cfg)
+emit_trampolines (MonoAotCompile *acfg)
{
- MonoMethod *method;
- int k, buf_size, method_index;
- guint32 debug_info_size;
+ char symbol [256];
+ int i, tramp_got_offset;
+ MonoAotTrampoline ntype;
+#ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
+ int tramp_type;
+ guint32 code_size;
+ MonoJumpInfo *ji;
guint8 *code;
- char symbol [128];
- MonoMethodHeader *header;
- guint8 *p, *buf, *debug_info;
- MonoJitInfo *jinfo = cfg->jit_info;
- guint32 flags;
- gboolean use_unwind_ops = FALSE;
+ GSList *unwind_ops;
+#endif
- method = cfg->orig_method;
- code = cfg->native_code;
- header = mono_method_get_header (method);
+ if (!acfg->aot_opts.full_aot)
+ return;
+
+ g_assert (acfg->image->assembly);
- method_index = get_method_index (acfg, method);
+ /* Currently, we only emit most trampolines into the mscorlib AOT image. */
+ if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
+#ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
+ /*
+ * Emit the generic trampolines.
+ *
+ * We could save some code by treating the generic trampolines as a wrapper
+ * method, but that approach has its own complexities, so we choose the simpler
+ * method.
+ */
+ for (tramp_type = 0; tramp_type < MONO_TRAMPOLINE_NUM; ++tramp_type) {
+ code = mono_arch_create_trampoline_code_full (tramp_type, &code_size, &ji, &unwind_ops, TRUE);
- /* Make the labels local */
- sprintf (symbol, ".Le_%x_p", method_index);
+ /* Emit trampoline code */
- mono_debug_serialize_debug_info (cfg, &debug_info, &debug_info_size);
+ sprintf (symbol, "generic_trampoline_%d", tramp_type);
- buf_size = header->num_clauses * 256 + debug_info_size + 256;
- p = buf = g_malloc (buf_size);
+ emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, unwind_ops);
+ }
-#if defined(__x86_64__)
- use_unwind_ops = cfg->unwind_ops != NULL;
+ code = mono_arch_get_nullified_class_init_trampoline (&code_size);
+ emit_trampoline (acfg, "nullified_class_init_trampoline", code, code_size, acfg->got_offset, NULL, NULL);
+#if defined(TARGET_AMD64) && defined(MONO_ARCH_MONITOR_OBJECT_REG)
+ code = mono_arch_create_monitor_enter_trampoline_full (&code_size, &ji, TRUE);
+ emit_trampoline (acfg, "monitor_enter_trampoline", code, code_size, acfg->got_offset, ji, NULL);
+ code = mono_arch_create_monitor_exit_trampoline_full (&code_size, &ji, TRUE);
+ emit_trampoline (acfg, "monitor_exit_trampoline", code, code_size, acfg->got_offset, ji, NULL);
#endif
- flags = (jinfo->has_generic_jit_info ? 1 : 0) | (use_unwind_ops ? 2 : 0);
+ code = mono_arch_create_generic_class_init_trampoline_full (&code_size, &ji, TRUE);
+ emit_trampoline (acfg, "generic_class_init_trampoline", code, code_size, acfg->got_offset, ji, NULL);
- encode_value (jinfo->code_size, p, &p);
- encode_value (flags, p, &p);
+ /* Emit the exception related code pieces */
+ code = mono_arch_get_restore_context_full (&code_size, &ji, TRUE);
+ emit_trampoline (acfg, "restore_context", code, code_size, acfg->got_offset, ji, NULL);
+ code = mono_arch_get_call_filter_full (&code_size, &ji, TRUE);
+ emit_trampoline (acfg, "call_filter", code, code_size, acfg->got_offset, ji, NULL);
+ code = mono_arch_get_throw_exception_full (&code_size, &ji, TRUE);
+ emit_trampoline (acfg, "throw_exception", code, code_size, acfg->got_offset, ji, NULL);
+ code = mono_arch_get_rethrow_exception_full (&code_size, &ji, TRUE);
+ emit_trampoline (acfg, "rethrow_exception", code, code_size, acfg->got_offset, ji, NULL);
+ code = mono_arch_get_throw_exception_by_name_full (&code_size, &ji, TRUE);
+ emit_trampoline (acfg, "throw_exception_by_name", code, code_size, acfg->got_offset, ji, NULL);
+ code = mono_arch_get_throw_corlib_exception_full (&code_size, &ji, TRUE);
+ emit_trampoline (acfg, "throw_corlib_exception", code, code_size, acfg->got_offset, ji, NULL);
- if (use_unwind_ops) {
- guint32 encoded_len;
- guint8 *encoded;
+#if defined(TARGET_AMD64)
+ code = mono_arch_get_throw_pending_exception_full (&code_size, &ji, TRUE);
+ emit_trampoline (acfg, "throw_pending_exception", code, code_size, acfg->got_offset, ji, NULL);
+#endif
- /*
- * This is a duplicate of the data in the .debug_frame section, but that
- * section cannot be accessed using the dl interface.
- */
- encoded = mono_unwind_ops_encode (cfg->unwind_ops, &encoded_len);
- encode_value (encoded_len, p, &p);
- memcpy (p, encoded, encoded_len);
- p += encoded_len;
- g_free (encoded);
- } else {
- encode_value (jinfo->used_regs, p, &p);
- }
+#if defined(TARGET_AMD64) || defined(TARGET_ARM)
+ for (i = 0; i < 128; ++i) {
+ int offset;
- /* Exception table */
- if (header->num_clauses) {
- for (k = 0; k < header->num_clauses; ++k) {
- MonoJitExceptionInfo *ei = &jinfo->clauses [k];
+ offset = MONO_RGCTX_SLOT_MAKE_RGCTX (i);
+ code = mono_arch_create_rgctx_lazy_fetch_trampoline_full (offset, &code_size, &ji, TRUE);
+ sprintf (symbol, "rgctx_fetch_trampoline_%u", offset);
+ emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, NULL);
- encode_value (ei->exvar_offset, p, &p);
+ offset = MONO_RGCTX_SLOT_MAKE_MRGCTX (i);
+ code = mono_arch_create_rgctx_lazy_fetch_trampoline_full (offset, &code_size, &ji, TRUE);
+ sprintf (symbol, "rgctx_fetch_trampoline_%u", offset);
+ emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, NULL);
+ }
+#endif
- if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER)
- encode_value ((gint)((guint8*)ei->data.filter - code), p, &p);
+#if defined(TARGET_AMD64) || defined(TARGET_ARM)
+ {
+ GSList *l;
- encode_value ((gint)((guint8*)ei->try_start - code), p, &p);
- encode_value ((gint)((guint8*)ei->try_end - code), p, &p);
- encode_value ((gint)((guint8*)ei->handler_start - code), p, &p);
+ /* delegate_invoke_impl trampolines */
+ l = mono_arch_get_delegate_invoke_impls ();
+ while (l) {
+ MonoAotTrampInfo *info = l->data;
+
+ emit_trampoline (acfg, info->name, info->code, info->code_size, acfg->got_offset, NULL, NULL);
+ l = l->next;
+ }
}
- }
+#endif
- if (jinfo->has_generic_jit_info) {
- MonoGenericJitInfo *gi = mono_jit_info_get_generic_jit_info (jinfo);
+#endif /* #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES */
- encode_value (gi->has_this ? 1 : 0, p, &p);
- encode_value (gi->this_reg, p, &p);
- encode_value (gi->this_offset, p, &p);
+ /* Emit trampolines which are numerous */
- /*
- * Need to encode jinfo->method too, since it is not equal to 'method'
- * when using generic sharing.
+ /*
+ * These include the following:
+ * - specific trampolines
+ * - static rgctx invoke trampolines
+ * - imt thunks
+ * These trampolines have the same code, they are parameterized by GOT
+ * slots.
+ * They are defined in this file, in the arch_... routines instead of
+ * in tramp-<ARCH>.c, since it is easier to do it this way.
*/
- encode_method_ref (acfg, jinfo->method, p, &p);
- }
-
- g_assert (debug_info_size < buf_size);
-
- encode_value (debug_info_size, p, &p);
- if (debug_info_size) {
- memcpy (p, debug_info, debug_info_size);
- p += debug_info_size;
- g_free (debug_info);
- }
- acfg->stats.ex_info_size += p - buf;
+ /*
+ * When running in aot-only mode, we can't create specific trampolines at
+ * runtime, so we create a few, and save them in the AOT file.
+ * Normal trampolines embed their argument as a literal inside the
+ * trampoline code, we can't do that here, so instead we embed an offset
+ * which needs to be added to the trampoline address to get the address of
+ * the GOT slot which contains the argument value.
+ * The generated trampolines jump to the generic trampolines using another
+ * GOT slot, which will be setup by the AOT loader to point to the
+ * generic trampoline code of the given type.
+ */
- /* Emit info */
+ /*
+ * FIXME: Maybe we should use more specific trampolines (i.e. one class init for
+ * each class).
+ */
- emit_label (acfg, symbol);
+ emit_section_change (acfg, ".text", 0);
- g_assert (p - buf < buf_size);
- emit_bytes (acfg, buf, p - buf);
- g_free (buf);
-}
+ tramp_got_offset = acfg->got_offset;
-static void
-emit_klass_info (MonoAotCompile *acfg, guint32 token)
-{
- MonoClass *klass = mono_class_get (acfg->image, token);
- guint8 *p, *buf;
- int i, buf_size;
- char symbol [128];
- gboolean no_special_static, cant_encode;
- gpointer iter = NULL;
+ for (ntype = 0; ntype < MONO_AOT_TRAMP_NUM; ++ntype) {
+ switch (ntype) {
+ case MONO_AOT_TRAMP_SPECIFIC:
+ sprintf (symbol, "specific_trampolines");
+ break;
+ case MONO_AOT_TRAMP_STATIC_RGCTX:
+ sprintf (symbol, "static_rgctx_trampolines");
+ break;
+ case MONO_AOT_TRAMP_IMT_THUNK:
+ sprintf (symbol, "imt_thunks");
+ break;
+ default:
+ g_assert_not_reached ();
+ }
- buf_size = 10240 + (klass->vtable_size * 16);
- p = buf = g_malloc (buf_size);
+ emit_global (acfg, symbol, TRUE);
+ emit_alignment (acfg, 16);
+ emit_label (acfg, symbol);
- g_assert (klass);
+ acfg->trampoline_got_offset_base [ntype] = tramp_got_offset;
- mono_class_init (klass);
+ for (i = 0; i < acfg->num_trampolines [ntype]; ++i) {
+ int tramp_size = 0;
- mono_class_get_nested_types (klass, &iter);
- g_assert (klass->nested_classes_inited);
+ switch (ntype) {
+ case MONO_AOT_TRAMP_SPECIFIC:
+ arch_emit_specific_trampoline (acfg, tramp_got_offset, &tramp_size);
+ tramp_got_offset += 2;
+ break;
+ case MONO_AOT_TRAMP_STATIC_RGCTX:
+ arch_emit_static_rgctx_trampoline (acfg, tramp_got_offset, &tramp_size);
+ tramp_got_offset += 2;
+ break;
+ case MONO_AOT_TRAMP_IMT_THUNK:
+ arch_emit_imt_thunk (acfg, tramp_got_offset, &tramp_size);
+ tramp_got_offset += 1;
+ break;
+ default:
+ g_assert_not_reached ();
+ }
- mono_class_setup_vtable (klass);
+ if (!acfg->trampoline_size [ntype]) {
+ g_assert (tramp_size);
+ acfg->trampoline_size [ntype] = tramp_size;
+ }
+ }
+ }
- /*
- * Emit all the information which is required for creating vtables so
- * the runtime does not need to create the MonoMethod structures which
- * take up a lot of space.
- */
+ /* Reserve some entries at the end of the GOT for our use */
+ acfg->num_trampoline_got_entries = tramp_got_offset - acfg->got_offset;
+ }
- no_special_static = !mono_class_has_special_static_fields (klass);
+ /* Unbox trampolines */
+ for (i = 0; i < acfg->methods->len; ++i) {
+ MonoMethod *method = g_ptr_array_index (acfg->methods, i);
+ MonoCompile *cfg;
+ char call_target [256];
- /* Check whenever we have enough info to encode the vtable */
- cant_encode = FALSE;
- for (i = 0; i < klass->vtable_size; ++i) {
- MonoMethod *cm = klass->vtable [i];
+ cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
+ if (!cfg || !cfg->orig_method->klass->valuetype || !(method->flags & METHOD_ATTRIBUTE_VIRTUAL))
+ continue;
- if (cm && mono_method_signature (cm)->is_inflated && !g_hash_table_lookup (acfg->token_info_hash, cm))
- cant_encode = TRUE;
- }
+ if (!method->wrapper_type && !method->is_inflated) {
+ g_assert (method->token);
+ sprintf (symbol, "ut_%d", mono_metadata_token_index (method->token) - 1);
+ } else {
+ sprintf (symbol, "ut_e_%d", get_method_index (acfg, method));
+ }
- if (klass->generic_container || cant_encode) {
- encode_value (-1, p, &p);
- } else {
- encode_value (klass->vtable_size, p, &p);
- encode_value ((no_special_static << 7) | (klass->has_static_refs << 6) | (klass->has_references << 5) | ((klass->blittable << 4) | (klass->nested_classes ? 1 : 0) << 3) | (klass->has_cctor << 2) | (klass->has_finalize << 1) | klass->ghcimpl, p, &p);
- if (klass->has_cctor)
- encode_method_ref (acfg, mono_class_get_cctor (klass), p, &p);
- if (klass->has_finalize)
- encode_method_ref (acfg, mono_class_get_finalizer (klass), p, &p);
-
- encode_value (klass->instance_size, p, &p);
- encode_value (mono_class_data_size (klass), p, &p);
- encode_value (klass->packing_size, p, &p);
- encode_value (klass->min_align, p, &p);
+ emit_section_change (acfg, ".text", 0);
+ emit_global (acfg, symbol, TRUE);
+ emit_label (acfg, symbol);
- for (i = 0; i < klass->vtable_size; ++i) {
- MonoMethod *cm = klass->vtable [i];
+ sprintf (call_target, ".Lm_%x", get_method_index (acfg, cfg->orig_method));
- if (cm)
- encode_method_ref (acfg, cm, p, &p);
- else
- encode_value (0, p, &p);
- }
+ arch_emit_unbox_trampoline (acfg, cfg->orig_method, cfg->generic_sharing_context, call_target);
}
- acfg->stats.class_info_size += p - buf;
-
- /* Emit the info */
- sprintf (symbol, ".LK_I_%x", token - MONO_TOKEN_TYPE_DEF - 1);
- emit_label (acfg, symbol);
+ acfg->got_offset += acfg->num_trampoline_got_entries;
+}
- g_assert (p - buf < buf_size);
- emit_bytes (acfg, buf, p - buf);
- g_free (buf);
+static gboolean
+str_begins_with (const char *str1, const char *str2)
+{
+ int len = strlen (str2);
+ return strncmp (str1, str2, len) == 0;
}
-/*
- * Calls made from AOTed code are routed through a table of jumps similar to the
- * ELF PLT (Program Linkage Table). The differences are the following:
- * - the ELF PLT entries make an indirect jump though the GOT so they expect the
- * GOT pointer to be in EBX. We want to avoid this, so our table contains direct
- * jumps. This means the jumps need to be patched when the address of the callee is
- * known. Initially the PLT entries jump to code which transfers control to the
- * AOT runtime through the first PLT entry.
- */
static void
-emit_plt (MonoAotCompile *acfg)
+mono_aot_parse_options (const char *aot_options, MonoAotOptions *opts)
{
- char symbol [128];
- int i;
-
- emit_line (acfg);
- sprintf (symbol, "plt");
-
- emit_section_change (acfg, ".text", 0);
- emit_global (acfg, symbol, TRUE);
-#ifdef __i386__
- /* This section will be made read-write by the AOT loader */
- emit_alignment (acfg, PAGESIZE);
-#else
- emit_alignment (acfg, 16);
-#endif
- emit_label (acfg, symbol);
-
- for (i = 0; i < acfg->plt_offset; ++i) {
- char label [128];
-#if defined(__arm__)
- guint8 buf [256];
- guint8 *code;
-#endif
-
- sprintf (label, ".Lp_%d", i);
- emit_label (acfg, label);
+ gchar **args, **ptr;
- /*
- * The first plt entry is used to transfer code to the AOT loader.
- */
+ args = g_strsplit (aot_options ? aot_options : "", ",", -1);
+ for (ptr = args; ptr && *ptr; ptr ++) {
+ const char *arg = *ptr;
-#if defined(__i386__)
- if (i == 0) {
- /* It is filled up during loading by the AOT loader. */
- emit_zero_bytes (acfg, 16);
+ if (str_begins_with (arg, "outfile=")) {
+ opts->outfile = g_strdup (arg + strlen ("outfile="));
+ } else if (str_begins_with (arg, "save-temps")) {
+ opts->save_temps = TRUE;
+ } else if (str_begins_with (arg, "keep-temps")) {
+ opts->save_temps = TRUE;
+ } else if (str_begins_with (arg, "write-symbols")) {
+ opts->write_symbols = TRUE;
+ } else if (str_begins_with (arg, "metadata-only")) {
+ opts->metadata_only = TRUE;
+ } else if (str_begins_with (arg, "bind-to-runtime-version")) {
+ opts->bind_to_runtime_version = TRUE;
+ } else if (str_begins_with (arg, "full")) {
+ opts->full_aot = TRUE;
+ } else if (str_begins_with (arg, "threads=")) {
+ opts->nthreads = atoi (arg + strlen ("threads="));
+ } else if (str_begins_with (arg, "static")) {
+ opts->static_link = TRUE;
+ opts->no_dlsym = TRUE;
+ } else if (str_begins_with (arg, "asmonly")) {
+ opts->asm_only = TRUE;
+ } else if (str_begins_with (arg, "asmwriter")) {
+ opts->asm_writer = TRUE;
+ } else if (str_begins_with (arg, "nodebug")) {
+ opts->nodebug = TRUE;
+ } else if (str_begins_with (arg, "ntrampolines=")) {
+ opts->ntrampolines = atoi (arg + strlen ("ntrampolines="));
} else {
- /* Need to make sure this is 9 bytes long */
- emit_byte (acfg, '\xe9');
- emit_symbol_diff (acfg, "plt", ".", -4);
- emit_int32 (acfg, acfg->plt_got_info_offsets [i]);
+ fprintf (stderr, "AOT : Unknown argument '%s'.\n", arg);
+ exit (1);
}
-#elif defined(__x86_64__)
- /*
- * We can't emit jumps because they are 32 bits only so they can't be patched.
- * So we make indirect calls through GOT entries which are patched by the AOT
- * loader to point to .Lpd entries.
- * An x86_64 plt entry is 10 bytes long, init_plt () depends on this.
- */
- /* jmpq *<offset>(%rip) */
- emit_byte (acfg, '\xff');
- emit_byte (acfg, '\x25');
- emit_symbol_diff (acfg, "got", ".", ((acfg->plt_got_offset_base + i) * sizeof (gpointer)) -4);
- /* Used by mono_aot_get_plt_info_offset */
- emit_int32 (acfg, acfg->plt_got_info_offsets [i]);
-#elif defined(__arm__)
- /* FIXME:
- * - optimize OP_AOTCONST implementation
- * - optimize the PLT entries
- * - optimize SWITCH AOT implementation
- * - implement IMT support
- */
- code = buf;
-#ifdef USE_BIN_WRITER
- /* We only emit 1 relocation since we implement it ourselves anyway */
- bin_writer_emit_reloc (acfg, R_ARM_ALU_PC_G0_NC, "got", ((acfg->plt_got_offset_base + i) * sizeof (gpointer)) - 8);
- /* FIXME: A 2 instruction encoding is sufficient in most cases */
- ARM_ADD_REG_IMM (code, ARMREG_IP, ARMREG_PC, 0, 0);
- ARM_ADD_REG_IMM (code, ARMREG_IP, ARMREG_IP, 0, 0);
- ARM_LDR_IMM (code, ARMREG_PC, ARMREG_IP, 0);
- emit_bytes (acfg, buf, code - buf);
- /* FIXME: Get rid of this */
- emit_symbol_diff (acfg, "got", ".", ((acfg->plt_got_offset_base + i) * sizeof (gpointer)));
- /* Used by mono_aot_get_plt_info_offset */
- emit_int32 (acfg, acfg->plt_got_info_offsets [i]);
-#else
- ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 4);
- ARM_ADD_REG_REG (code, ARMREG_IP, ARMREG_PC, ARMREG_IP);
- ARM_LDR_IMM (code, ARMREG_PC, ARMREG_IP, 0);
- emit_bytes (acfg, buf, code - buf);
- emit_symbol_diff (acfg, "got", ".", ((acfg->plt_got_offset_base + i) * sizeof (gpointer)));
- /* Used by mono_aot_get_plt_info_offset */
- emit_int32 (acfg, acfg->plt_got_info_offsets [i]);
-#endif
-
-#else
- g_assert_not_reached ();
-#endif
}
- sprintf (symbol, "plt_end");
- emit_global (acfg, symbol, TRUE);
- emit_label (acfg, symbol);
+ g_strfreev (args);
}
-static G_GNUC_UNUSED void
-emit_named_code (MonoAotCompile *acfg, const char *name, guint8 *code,
- guint32 code_size, int got_offset, MonoJumpInfo *ji)
+static void
+add_token_info_hash (gpointer key, gpointer value, gpointer user_data)
{
- char symbol [256];
- guint32 buf_size;
- MonoJumpInfo *patch_info;
- guint8 *buf, *p;
- GPtrArray *patches;
-
- /* Emit code */
-
- sprintf (symbol, "%s", name);
-
- emit_section_change (acfg, ".text", 0);
- emit_global (acfg, symbol, TRUE);
- emit_alignment (acfg, 16);
- emit_label (acfg, symbol);
-
- /*
- * The code should access everything through the GOT, so we pass
- * TRUE here.
- */
- emit_and_reloc_code (acfg, NULL, code, code_size, ji, TRUE);
+ MonoMethod *method = (MonoMethod*)key;
+ MonoJumpInfoToken *ji = (MonoJumpInfoToken*)value;
+ MonoJumpInfoToken *new_ji = g_new0 (MonoJumpInfoToken, 1);
+ MonoAotCompile *acfg = user_data;
- /* Emit info */
+ new_ji->image = ji->image;
+ new_ji->token = ji->token;
+ g_hash_table_insert (acfg->token_info_hash, method, new_ji);
+}
- /* Sort relocations */
- patches = g_ptr_array_new ();
- for (patch_info = ji; patch_info; patch_info = patch_info->next)
- g_ptr_array_add (patches, patch_info);
- g_ptr_array_sort (patches, compare_patches);
+static gboolean
+can_encode_class (MonoAotCompile *acfg, MonoClass *klass)
+{
+ if (klass->type_token)
+ return TRUE;
+ if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
+ return TRUE;
+ if (klass->rank)
+ return can_encode_class (acfg, klass->element_class);
+ return FALSE;
+}
- buf_size = patches->len * 128 + 128;
- buf = g_malloc (buf_size);
- p = buf;
+static gboolean
+can_encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
+{
+ switch (patch_info->type) {
+ case MONO_PATCH_INFO_METHOD:
+ case MONO_PATCH_INFO_METHODCONST: {
+ MonoMethod *method = patch_info->data.method;
- encode_patch_list (acfg, patches, patches->len, got_offset, p, &p);
- g_assert (p - buf < buf_size);
+ if (method->wrapper_type) {
+ switch (method->wrapper_type) {
+ case MONO_WRAPPER_NONE:
+ case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
+ case MONO_WRAPPER_XDOMAIN_INVOKE:
+ case MONO_WRAPPER_STFLD:
+ case MONO_WRAPPER_LDFLD:
+ case MONO_WRAPPER_LDFLDA:
+ case MONO_WRAPPER_LDFLD_REMOTE:
+ case MONO_WRAPPER_STFLD_REMOTE:
+ case MONO_WRAPPER_STELEMREF:
+ case MONO_WRAPPER_ISINST:
+ case MONO_WRAPPER_PROXY_ISINST:
+ case MONO_WRAPPER_ALLOC:
+ case MONO_WRAPPER_REMOTING_INVOKE:
+ case MONO_WRAPPER_STATIC_RGCTX_INVOKE:
+ case MONO_WRAPPER_UNKNOWN:
+ break;
+ default:
+ //printf ("Skip (wrapper call): %d -> %s\n", patch_info->type, mono_method_full_name (patch_info->data.method, TRUE));
+ return FALSE;
+ }
+ } else {
+ if (!method->token) {
+ /* The method is part of a constructed type like Int[,].Set (). */
+ if (!g_hash_table_lookup (acfg->token_info_hash, method)) {
+ if (method->klass->rank)
+ return TRUE;
+ return FALSE;
+ }
+ }
+ }
+ break;
+ }
+ case MONO_PATCH_INFO_VTABLE:
+ case MONO_PATCH_INFO_CLASS_INIT:
+ case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
+ case MONO_PATCH_INFO_CLASS:
+ case MONO_PATCH_INFO_IID:
+ case MONO_PATCH_INFO_ADJUSTED_IID:
+ if (!can_encode_class (acfg, patch_info->data.klass)) {
+ //printf ("Skip: %s\n", mono_type_full_name (&patch_info->data.klass->byval_arg));
+ return FALSE;
+ }
+ break;
+ case MONO_PATCH_INFO_RGCTX_FETCH: {
+ MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
- sprintf (symbol, "%s_p", name);
+ if (!can_encode_patch (acfg, entry->data))
+ return FALSE;
+ break;
+ }
+ default:
+ break;
+ }
- emit_section_change (acfg, ".text", 0);
- emit_global (acfg, symbol, FALSE);
- emit_label (acfg, symbol);
-
- emit_bytes (acfg, buf, p - buf);
+ return TRUE;
}
+static void
+add_generic_class (MonoAotCompile *acfg, MonoClass *klass);
+
/*
- * When running in aot-only mode, we can't create trampolines at runtime, so we create
- * a few, and save them in the AOT file. Normal trampolines embed their argument as a
- * literal inside the trampoline code, we can't do that here, so instead we embed an offset
- * which needs to be added to the trampoline address to get the address of the GOT slot
- * which contains the argument value.
- * The generated trampolines jump to the generic trampolines using another GOT slot, which
- * will be setup by the AOT loader to point to the generic trampoline code of the given
- * type.
+ * compile_method:
+ *
+ * AOT compile a given method.
+ * This function might be called by multiple threads, so it must be thread-safe.
*/
static void
-emit_trampolines (MonoAotCompile *acfg)
+compile_method (MonoAotCompile *acfg, MonoMethod *method)
{
- char symbol [256];
- int i, offset;
-#ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
- int tramp_type;
- guint32 code_size;
- MonoJumpInfo *ji;
- guint8 *code;
-#endif
+ MonoCompile *cfg;
+ MonoJumpInfo *patch_info;
+ gboolean skip;
+ int index;
+ MonoMethod *wrapped;
- if (!acfg->aot_opts.full_aot)
+ if (acfg->aot_opts.metadata_only)
return;
-
- g_assert (acfg->image->assembly);
- /* Currently, we only emit most trampolines into the mscorlib AOT image. */
- if (strcmp (acfg->image->assembly->aname.name, "mscorlib") == 0) {
-#ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
- /*
- * Emit the generic trampolines.
- *
- * We could save some code by treating the generic trampolines as a wrapper
- * method, but that approach has its own complexities, so we choose the simpler
- * method.
- */
- for (tramp_type = 0; tramp_type < MONO_TRAMPOLINE_NUM; ++tramp_type) {
- code = mono_arch_create_trampoline_code_full (tramp_type, &code_size, &ji, TRUE);
+ mono_acfg_lock (acfg);
+ index = get_method_index (acfg, method);
+ mono_acfg_unlock (acfg);
- /* Emit trampoline code */
+ /* fixme: maybe we can also precompile wrapper methods */
+ if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
+ (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
+ (method->flags & METHOD_ATTRIBUTE_ABSTRACT)) {
+ //printf ("Skip (impossible): %s\n", mono_method_full_name (method, TRUE));
+ return;
+ }
- sprintf (symbol, "generic_trampoline_%d", tramp_type);
+ if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
+ return;
- emit_named_code (acfg, symbol, code, code_size, acfg->got_offset, ji);
- }
+ wrapped = mono_marshal_method_from_wrapper (method);
+ if (wrapped && (wrapped->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && wrapped->is_generic)
+ // FIXME: The wrapper should be generic too, but it is not
+ return;
- code = mono_arch_get_nullified_class_init_trampoline (&code_size);
- emit_named_code (acfg, "nullified_class_init_trampoline", code, code_size, acfg->got_offset, NULL);
-#if defined(__x86_64__) && defined(MONO_ARCH_MONITOR_OBJECT_REG)
- code = mono_arch_create_monitor_enter_trampoline_full (&code_size, &ji, TRUE);
- emit_named_code (acfg, "monitor_enter_trampoline", code, code_size, acfg->got_offset, ji);
- code = mono_arch_create_monitor_exit_trampoline_full (&code_size, &ji, TRUE);
- emit_named_code (acfg, "monitor_exit_trampoline", code, code_size, acfg->got_offset, ji);
-#endif
-
- /* Emit the exception related code pieces */
- code = mono_arch_get_restore_context_full (&code_size, &ji, TRUE);
- emit_named_code (acfg, "restore_context", code, code_size, acfg->got_offset, ji);
- code = mono_arch_get_call_filter_full (&code_size, &ji, TRUE);
- emit_named_code (acfg, "call_filter", code, code_size, acfg->got_offset, ji);
- code = mono_arch_get_throw_exception_full (&code_size, &ji, TRUE);
- emit_named_code (acfg, "throw_exception", code, code_size, acfg->got_offset, ji);
- code = mono_arch_get_rethrow_exception_full (&code_size, &ji, TRUE);
- emit_named_code (acfg, "rethrow_exception", code, code_size, acfg->got_offset, ji);
- code = mono_arch_get_throw_exception_by_name_full (&code_size, &ji, TRUE);
- emit_named_code (acfg, "throw_exception_by_name", code, code_size, acfg->got_offset, ji);
- code = mono_arch_get_throw_corlib_exception_full (&code_size, &ji, TRUE);
- emit_named_code (acfg, "throw_corlib_exception", code, code_size, acfg->got_offset, ji);
-
-#if defined(__x86_64__) || defined(__arm__)
- for (i = 0; i < 128; ++i) {
- int offset;
-
- offset = MONO_RGCTX_SLOT_MAKE_RGCTX (i);
- code = mono_arch_create_rgctx_lazy_fetch_trampoline_full (offset, &code_size, &ji, TRUE);
- sprintf (symbol, "rgctx_fetch_trampoline_%u", offset);
- emit_named_code (acfg, symbol, code, code_size, acfg->got_offset, ji);
-
- offset = MONO_RGCTX_SLOT_MAKE_MRGCTX (i);
- code = mono_arch_create_rgctx_lazy_fetch_trampoline_full (offset, &code_size, &ji, TRUE);
- sprintf (symbol, "rgctx_fetch_trampoline_%u", offset);
- emit_named_code (acfg, symbol, code, code_size, acfg->got_offset, ji);
- }
-#endif
-#endif
-
- /*
- * FIXME: Maybe we should use more specific trampolines (i.e. one class init for
- * each class).
- */
-
- /* Reserve some entries at the end of the GOT for our use */
- acfg->num_trampoline_got_entries = acfg->num_aot_trampolines * 2;
-
- sprintf (symbol, "trampolines");
-
- emit_section_change (acfg, ".text", 0);
- emit_global (acfg, symbol, TRUE);
- emit_alignment (acfg, 16);
- emit_label (acfg, symbol);
-
- for (i = 0; i < acfg->num_aot_trampolines; ++i) {
- offset = acfg->got_offset + (i * 2);
-
- /*
- * The trampolines created here are variations of the specific
- * trampolines created in mono_arch_create_specific_trampoline (). The
- * differences are:
- * - the generic trampoline address is taken from a got slot.
- * - the offset of the got slot where the trampoline argument is stored
- * is embedded in the instruction stream, and the generic trampoline
- * can load the argument by loading the offset, adding it to the
- * address of the trampoline to get the address of the got slot, and
- * loading the argument from the there.
- */
-#if defined(__x86_64__)
- /* This should be exactly 16 bytes long */
- /* It should work together with the generic trampoline code in tramp-amd64.c */
- /* call *<offset>(%rip) */
- emit_byte (acfg, '\x41');
- emit_byte (acfg, '\xff');
- emit_byte (acfg, '\x15');
- emit_symbol_diff (acfg, "got", ".", (offset * sizeof (gpointer)) - 4);
- /* This should be relative to the start of the trampoline */
- emit_symbol_diff (acfg, "got", ".", (offset * sizeof (gpointer)) - 4 + 19);
- emit_zero_bytes (acfg, 5);
-#elif defined(__arm__)
- {
- guint8 buf [128];
-
- /* Generate the trampoline code */
- /* This should be exactly 28 bytes long */
-
- code = buf;
- ARM_PUSH (code, 0x5fff);
- ARM_LDR_IMM (code, ARMREG_R1, ARMREG_PC, 8);
- /* Load the value from the GOT */
- ARM_LDR_REG_REG (code, ARMREG_R1, ARMREG_PC, ARMREG_R1);
- /* Branch to it */
- ARM_MOV_REG_REG (code, ARMREG_LR, ARMREG_PC);
- ARM_MOV_REG_REG (code, ARMREG_PC, ARMREG_R1);
-
- g_assert (code - buf == 20);
-
- /* Emit it */
- emit_bytes (acfg, buf, code - buf);
- emit_symbol_diff (acfg, "got", ".", (offset * sizeof (gpointer)) - 4 + 8);
- emit_symbol_diff (acfg, "got", ".", ((offset + 1) * sizeof (gpointer)) - 4 + 8);
- }
-#else
- g_assert_not_reached ();
-#endif
- }
- }
-
- /* Unbox trampolines */
-
- for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
- MonoMethod *method;
- guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
- MonoCompile *cfg;
- char call_target [256];
-
- method = mono_get_method (acfg->image, token, NULL);
-
- cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
- if (!cfg || !cfg->orig_method->klass->valuetype || !(method->flags & METHOD_ATTRIBUTE_VIRTUAL))
- continue;
-
- sprintf (symbol, "unbox_trampoline_%d", i);
-
- emit_section_change (acfg, ".text", 0);
- emit_global (acfg, symbol, TRUE);
- emit_label (acfg, symbol);
-
- sprintf (call_target, ".Lm_%x", get_method_index (acfg, cfg->orig_method));
-
-#if defined(__x86_64__)
- {
- guint8 buf [32];
- int this_reg;
-
- this_reg = mono_arch_get_this_arg_reg (mono_method_signature (cfg->orig_method), cfg->generic_sharing_context, NULL);
- code = buf;
- amd64_alu_reg_imm (code, X86_ADD, this_reg, sizeof (MonoObject));
-
- emit_bytes (acfg, buf, code - buf);
- /* jump <method> */
- emit_byte (acfg, '\xe9');
- emit_symbol_diff (acfg, call_target, ".", -4);
- }
-#elif defined(__arm__)
- {
- guint8 buf [128];
- int this_pos = 0;
-
- code = buf;
-
- if (MONO_TYPE_ISSTRUCT (mono_method_signature (cfg->orig_method)->ret))
- this_pos = 1;
-
- ARM_ADD_REG_IMM8 (code, this_pos, this_pos, sizeof (MonoObject));
-
- emit_bytes (acfg, buf, code - buf);
- /* jump to method */
-#if defined(USE_BIN_WRITER)
- /* FIXME: */
- g_assert_not_reached ();
-#else
- fprintf (acfg->fp, "\n\tb %s\n", call_target);
-#endif
- }
-#else
- g_assert_not_reached ();
-#endif
- }
-
- acfg->trampoline_got_offset_base = acfg->got_offset;
-
- acfg->got_offset += acfg->num_trampoline_got_entries;
-}
-
-static gboolean
-str_begins_with (const char *str1, const char *str2)
-{
- int len = strlen (str2);
- return strncmp (str1, str2, len) == 0;
-}
-
-static void
-mono_aot_parse_options (const char *aot_options, MonoAotOptions *opts)
-{
- gchar **args, **ptr;
-
- args = g_strsplit (aot_options ? aot_options : "", ",", -1);
- for (ptr = args; ptr && *ptr; ptr ++) {
- const char *arg = *ptr;
-
- if (str_begins_with (arg, "outfile=")) {
- opts->outfile = g_strdup (arg + strlen ("outfile="));
- } else if (str_begins_with (arg, "save-temps")) {
- opts->save_temps = TRUE;
- } else if (str_begins_with (arg, "keep-temps")) {
- opts->save_temps = TRUE;
- } else if (str_begins_with (arg, "write-symbols")) {
- opts->write_symbols = TRUE;
- } else if (str_begins_with (arg, "metadata-only")) {
- opts->metadata_only = TRUE;
- } else if (str_begins_with (arg, "bind-to-runtime-version")) {
- opts->bind_to_runtime_version = TRUE;
- } else if (str_begins_with (arg, "full")) {
- opts->full_aot = TRUE;
- /*
- * The no-dlsym option is only useful on the iphone, and even there,
- * do to other limitations of the dynamic linker, it doesn't seem to
- * work. So disable it for now so we don't have to support it.
- */
- /*
- } else if (str_begins_with (arg, "no-dlsym")) {
- opts->no_dlsym = TRUE;
- */
- } else if (str_begins_with (arg, "threads=")) {
- opts->nthreads = atoi (arg + strlen ("threads="));
- } else if (str_begins_with (arg, "static")) {
- opts->static_link = TRUE;
- opts->no_dlsym = TRUE;
- } else if (str_begins_with (arg, "asmonly")) {
- opts->asm_only = TRUE;
- } else if (str_begins_with (arg, "asmwriter")) {
- opts->asm_writer = TRUE;
- } else {
- fprintf (stderr, "AOT : Unknown argument '%s'.\n", arg);
- exit (1);
- }
- }
-
- g_strfreev (args);
-}
-
-static void
-add_token_info_hash (gpointer key, gpointer value, gpointer user_data)
-{
- MonoMethod *method = (MonoMethod*)key;
- MonoJumpInfoToken *ji = (MonoJumpInfoToken*)value;
- MonoJumpInfoToken *new_ji = g_new0 (MonoJumpInfoToken, 1);
- MonoAotCompile *acfg = user_data;
-
- new_ji->image = ji->image;
- new_ji->token = ji->token;
- g_hash_table_insert (acfg->token_info_hash, method, new_ji);
-}
-
-static gboolean
-can_encode_patch (MonoAotCompile *acfg, MonoJumpInfo *patch_info)
-{
- switch (patch_info->type) {
- case MONO_PATCH_INFO_METHOD:
- case MONO_PATCH_INFO_METHODCONST:
- if (patch_info->data.method->wrapper_type) {
- switch (patch_info->data.method->wrapper_type) {
- case MONO_WRAPPER_NONE:
- case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
- case MONO_WRAPPER_XDOMAIN_INVOKE:
- case MONO_WRAPPER_STFLD:
- case MONO_WRAPPER_LDFLD:
- case MONO_WRAPPER_LDFLDA:
- case MONO_WRAPPER_LDFLD_REMOTE:
- case MONO_WRAPPER_STFLD_REMOTE:
- case MONO_WRAPPER_STELEMREF:
- case MONO_WRAPPER_ISINST:
- case MONO_WRAPPER_PROXY_ISINST:
- case MONO_WRAPPER_ALLOC:
- case MONO_WRAPPER_REMOTING_INVOKE:
- case MONO_WRAPPER_STATIC_RGCTX_INVOKE:
- case MONO_WRAPPER_UNKNOWN:
- break;
- default:
- //printf ("Skip (wrapper call): %s %d -> %s\n", mono_method_full_name (method, TRUE), patch_info->type, mono_method_full_name (patch_info->data.method, TRUE));
- return FALSE;
- }
- } else {
- if (!patch_info->data.method->token) {
- /* The method is part of a constructed type like Int[,].Set (). */
- if (!g_hash_table_lookup (acfg->token_info_hash, patch_info->data.method))
- return FALSE;
- }
- }
- break;
- case MONO_PATCH_INFO_VTABLE:
- case MONO_PATCH_INFO_CLASS_INIT:
- case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
- case MONO_PATCH_INFO_CLASS:
- case MONO_PATCH_INFO_IID:
- case MONO_PATCH_INFO_ADJUSTED_IID:
- if (!patch_info->data.klass->type_token)
- if (!patch_info->data.klass->element_class->type_token && !(patch_info->data.klass->element_class->rank && patch_info->data.klass->element_class->element_class->type_token))
- return FALSE;
- break;
- case MONO_PATCH_INFO_RGCTX_FETCH: {
- MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
-
- if (!can_encode_patch (acfg, entry->data))
- return FALSE;
- break;
- }
- default:
- break;
- }
-
- return TRUE;
-}
-
-/*
- * compile_method:
- *
- * AOT compile a given method.
- * This function might be called by multiple threads, so it must be thread-safe.
- */
-static void
-compile_method (MonoAotCompile *acfg, MonoMethod *method)
-{
- MonoCompile *cfg;
- MonoJumpInfo *patch_info;
- gboolean skip;
- int index;
- MonoMethod *wrapped;
-
- if (acfg->aot_opts.metadata_only)
- return;
-
- mono_acfg_lock (acfg);
- index = get_method_index (acfg, method);
- mono_acfg_unlock (acfg);
-
- /* fixme: maybe we can also precompile wrapper methods */
- if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
- (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
- (method->flags & METHOD_ATTRIBUTE_ABSTRACT)) {
- //printf ("Skip (impossible): %s\n", mono_method_full_name (method, TRUE));
- return;
- }
-
- if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
- return;
-
- wrapped = mono_marshal_method_from_wrapper (method);
- if (wrapped && (wrapped->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && wrapped->is_generic)
- // FIXME: The wrapper should be generic too, but it is not
- return;
-
- InterlockedIncrement (&acfg->stats.mcount);
+ InterlockedIncrement (&acfg->stats.mcount);
#if 0
if (method->is_generic || method->klass->generic_container) {
}
#endif
- if (acfg->aot_opts.full_aot)
- mono_use_imt = FALSE;
+ //acfg->aot_opts.print_skipped_methods = TRUE;
/*
* Since these methods are the only ones which are compiled with
}
if (cfg->disable_aot) {
- //printf ("Skip (other): %s\n", mono_method_full_name (method, TRUE));
+ if (acfg->aot_opts.print_skipped_methods)
+ printf ("Skip (disabled): %s\n", mono_method_full_name (method, TRUE));
InterlockedIncrement (&acfg->stats.ocount);
mono_destroy_compile (cfg);
return;
switch (patch_info->type) {
case MONO_PATCH_INFO_ABS:
/* unable to handle this */
- //printf ("Skip (abs addr): %s %d\n", mono_method_full_name (method, TRUE), patch_info->type);
skip = TRUE;
break;
default:
}
if (skip) {
+ if (acfg->aot_opts.print_skipped_methods)
+ printf ("Skip (abs call): %s\n", mono_method_full_name (method, TRUE));
InterlockedIncrement (&acfg->stats.abscount);
mono_destroy_compile (cfg);
return;
}
if (skip) {
+ if (acfg->aot_opts.print_skipped_methods)
+ printf ("Skip (patches): %s\n", mono_method_full_name (method, TRUE));
acfg->stats.ocount++;
mono_destroy_compile (cfg);
mono_acfg_unlock (acfg);
if (m->is_inflated) {
if (!(mono_class_generic_sharing_enabled (m->klass) &&
mono_method_is_generic_sharable_impl (m, FALSE)) &&
- !method_has_type_vars (m))
- add_extra_method (acfg, m);
+ !method_has_type_vars (m)) {
+ if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
+ if (acfg->aot_opts.full_aot)
+ add_extra_method (acfg, mono_marshal_get_native_wrapper (m, TRUE, TRUE));
+ } else {
+ add_extra_method (acfg, m);
+ }
+ }
+ add_generic_class (acfg, m->klass);
}
break;
}
g_hash_table_insert (acfg->method_to_cfg, cfg->orig_method, cfg);
if (cfg->orig_method->wrapper_type)
- g_ptr_array_add (acfg->extra_methods, cfg->orig_method);
-
- mono_acfg_unlock (acfg);
-
- InterlockedIncrement (&acfg->stats.ccount);
-}
-
-static void
-compile_thread_main (gpointer *user_data)
-{
- MonoDomain *domain = user_data [0];
- MonoAotCompile *acfg = user_data [1];
- GPtrArray *methods = user_data [2];
- int i;
-
- mono_thread_attach (domain);
-
- for (i = 0; i < methods->len; ++i)
- compile_method (acfg, g_ptr_array_index (methods, i));
-}
-
-static void
-load_profile_files (MonoAotCompile *acfg)
-{
- FILE *infile;
- char *tmp;
- int file_index, res, method_index, i;
- char ver [256];
- guint32 token;
- GList *unordered;
-
- file_index = 0;
- while (TRUE) {
- tmp = g_strdup_printf ("%s/.mono/aot-profile-data/%s-%s-%d", g_get_home_dir (), acfg->image->assembly_name, acfg->image->guid, file_index);
-
- if (!g_file_test (tmp, G_FILE_TEST_IS_REGULAR)) {
- g_free (tmp);
- break;
- }
-
- infile = fopen (tmp, "r");
- g_assert (infile);
-
- printf ("Using profile data file '%s'\n", tmp);
- g_free (tmp);
-
- file_index ++;
-
- res = fscanf (infile, "%32s\n", ver);
- if ((res != 1) || strcmp (ver, "#VER:1") != 0) {
- printf ("Profile file has wrong version or invalid.\n");
- fclose (infile);
- continue;
- }
-
- while (TRUE) {
- res = fscanf (infile, "%d\n", &token);
- if (res < 1)
- break;
-
- method_index = mono_metadata_token_index (token) - 1;
-
- if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (method_index)))
- acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (method_index));
- }
- fclose (infile);
- }
-
- /* Add missing methods */
- unordered = NULL;
- for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
- if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (i)))
- unordered = g_list_prepend (unordered, GUINT_TO_POINTER (i));
- }
- unordered = g_list_reverse (unordered);
- if (acfg->method_order)
- g_list_last (acfg->method_order)->next = unordered;
- else
- acfg->method_order = unordered;
-}
-
-/**
- * alloc_got_slots:
- *
- * Collect all patches which have shared GOT entries and alloc entries for them. The
- * rest will get entries allocated during emit_code ().
- */
-static void
-alloc_got_slots (MonoAotCompile *acfg)
-{
- int i;
- GList *l;
- MonoJumpInfo *ji;
-
- /* Slot 0 is reserved for the address of the current assembly */
- ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
- ji->type = MONO_PATCH_INFO_IMAGE;
- ji->data.image = acfg->image;
-
- get_shared_got_offset (acfg, ji);
-
- for (l = acfg->method_order; l != NULL; l = l->next) {
- i = GPOINTER_TO_UINT (l->data);
-
- if (acfg->cfgs [i]) {
- MonoCompile *cfg = acfg->cfgs [i];
-
- for (ji = cfg->patch_info; ji; ji = ji->next) {
- if (is_shared_got_patch (ji))
- get_shared_got_offset (acfg, ji);
- }
- }
- }
-}
-
-static void
-emit_code (MonoAotCompile *acfg)
-{
- int i;
- char symbol [256];
- GList *l;
-
- sprintf (symbol, "methods");
- emit_section_change (acfg, ".text", 0);
- emit_global (acfg, symbol, TRUE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- /*
- * Emit some padding so the local symbol for the first method doesn't have the
- * same address as 'methods'.
- */
- emit_zero_bytes (acfg, 16);
-
- for (l = acfg->method_order; l != NULL; l = l->next) {
- i = GPOINTER_TO_UINT (l->data);
-
- if (acfg->cfgs [i])
- emit_method_code (acfg, acfg->cfgs [i]);
- }
-
- sprintf (symbol, "methods_end");
- emit_section_change (acfg, ".text", 0);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- sprintf (symbol, "method_offsets");
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- for (i = 0; i < acfg->nmethods; ++i) {
- if (acfg->cfgs [i]) {
- sprintf (symbol, ".Lm_%x", i);
- emit_symbol_diff (acfg, symbol, "methods", 0);
- } else {
- emit_int32 (acfg, 0xffffffff);
- }
- }
- emit_line (acfg);
-}
-
-static void
-emit_info (MonoAotCompile *acfg)
-{
- int i;
- char symbol [256];
- GList *l;
-
- /* Emit method info */
- sprintf (symbol, "method_info");
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- /* To reduce size of generated assembly code */
- sprintf (symbol, "mi");
- emit_label (acfg, symbol);
-
- for (l = acfg->method_order; l != NULL; l = l->next) {
- i = GPOINTER_TO_UINT (l->data);
-
- if (acfg->cfgs [i])
- emit_method_info (acfg, acfg->cfgs [i]);
- }
-
- sprintf (symbol, "method_info_offsets");
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- for (i = 0; i < acfg->nmethods; ++i) {
- if (acfg->cfgs [i]) {
- sprintf (symbol, ".Lm_%x_p", i);
- emit_symbol_diff (acfg, symbol, "mi", 0);
- } else {
- emit_int32 (acfg, 0);
- }
- }
- emit_line (acfg);
-}
-
-typedef struct HashEntry {
- guint32 key, value, index;
- struct HashEntry *next;
-} HashEntry;
-
-/*
- * emit_extra_methods:
- *
- * Emit methods which are not in the METHOD table, like wrappers.
- */
-static void
-emit_extra_methods (MonoAotCompile *acfg)
-{
- int i, table_size, buf_size;
- char symbol [256];
- guint8 *p, *buf;
- guint32 *info_offsets;
- guint32 hash;
- GPtrArray *table;
- HashEntry *entry, *new_entry;
- int nmethods;
-
- info_offsets = g_new0 (guint32, acfg->extra_methods->len);
-
- buf_size = acfg->extra_methods->len * 256 + 256;
- p = buf = g_malloc (buf_size);
-
- /* Encode method info */
- nmethods = 0;
- /* So offsets are > 0 */
- *p = 0;
- p++;
- for (i = 0; i < acfg->extra_methods->len; ++i) {
- MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
- MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
-
- if (!cfg)
- continue;
-
- nmethods ++;
- info_offsets [i] = p - buf;
-
- if (method->wrapper_type) {
- char *name;
-
- // FIXME: Optimize disk usage
- if (method->wrapper_type == MONO_WRAPPER_RUNTIME_INVOKE) {
- char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
- name = g_strdup_printf ("(wrapper runtime-invoke):%s (%s)", method->name, tmpsig);
- g_free (tmpsig);
- } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
- char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
- name = g_strdup_printf ("(wrapper delegate-invoke):%s (%s)", method->name, tmpsig);
- g_free (tmpsig);
- } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_BEGIN_INVOKE) {
- char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
- name = g_strdup_printf ("(wrapper delegate-begin-invoke):%s (%s)", method->name, tmpsig);
- g_free (tmpsig);
- } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_END_INVOKE) {
- char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
- name = g_strdup_printf ("(wrapper delegate-end-invoke):%s (%s)", method->name, tmpsig);
- g_free (tmpsig);
- } else {
- name = mono_method_full_name (cfg->orig_method, TRUE);
- }
-
- encode_value (1, p, &p);
- strcpy ((char*)p, name);
- p += strlen (name ) + 1;
- g_free (name);
- } else {
- encode_value (0, p, &p);
- encode_method_ref (acfg, method, p, &p);
- }
-
- g_assert ((p - buf) < buf_size);
- }
-
- g_assert ((p - buf) < buf_size);
-
- /* Emit method info */
- sprintf (symbol, "extra_method_info");
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- emit_bytes (acfg, buf, p - buf);
-
- emit_line (acfg);
-
- /*
- * Construct a chained hash table for mapping indexes in extra_method_info to
- * method indexes.
- */
- table_size = g_spaced_primes_closest ((int)(nmethods * 1.5));
- table = g_ptr_array_sized_new (table_size);
- for (i = 0; i < table_size; ++i)
- g_ptr_array_add (table, NULL);
- for (i = 0; i < acfg->extra_methods->len; ++i) {
- MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
- MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
- guint32 key, value;
-
- if (!cfg)
- continue;
-
- key = info_offsets [i];
- value = get_method_index (acfg, method);
-
- if (method->wrapper_type) {
- hash = g_str_hash (method->name) % table_size;
- } else {
- // FIXME:
- hash = 0 % table_size;
- }
-
- /* FIXME: Allocate from the mempool */
- new_entry = g_new0 (HashEntry, 1);
- new_entry->key = key;
- new_entry->value = value;
-
- entry = g_ptr_array_index (table, hash);
- if (entry == NULL) {
- new_entry->index = hash;
- g_ptr_array_index (table, hash) = new_entry;
- } else {
- while (entry->next)
- entry = entry->next;
-
- entry->next = new_entry;
- new_entry->index = table->len;
- g_ptr_array_add (table, new_entry);
- }
- }
-
- /* Emit the table */
- sprintf (symbol, "extra_method_table");
- emit_section_change (acfg, ".text", 0);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- g_assert (table_size < 65000);
- emit_int32 (acfg, table_size);
- g_assert (table->len < 65000);
- for (i = 0; i < table->len; ++i) {
- HashEntry *entry = g_ptr_array_index (table, i);
-
- if (entry == NULL) {
- emit_int32 (acfg, 0);
- emit_int32 (acfg, 0);
- emit_int32 (acfg, 0);
- } else {
- g_assert (entry->key > 0);
- emit_int32 (acfg, entry->key);
- emit_int32 (acfg, entry->value);
- if (entry->next)
- emit_int32 (acfg, entry->next->index);
- else
- emit_int32 (acfg, 0);
- }
- }
-
- /*
- * Emit a table reverse mapping method indexes to their index in extra_method_info.
- * This is used by mono_aot_find_jit_info ().
- */
- sprintf (symbol, "extra_method_info_offsets");
- emit_section_change (acfg, ".text", 0);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- emit_int32 (acfg, acfg->extra_methods->len);
- for (i = 0; i < acfg->extra_methods->len; ++i) {
- MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
-
- emit_int32 (acfg, get_method_index (acfg, method));
- emit_int32 (acfg, info_offsets [i]);
- }
-}
-
-static void
-emit_method_order (MonoAotCompile *acfg)
-{
- int i, index, len;
- char symbol [256];
- GList *l;
-
- sprintf (symbol, "method_order");
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- /* First emit an index table */
- index = 0;
- len = 0;
- for (l = acfg->method_order; l != NULL; l = l->next) {
- i = GPOINTER_TO_UINT (l->data);
-
- if (acfg->cfgs [i]) {
- if ((index % 1024) == 0) {
- emit_int32 (acfg, i);
- }
-
- index ++;
- }
-
- len ++;
- }
- emit_int32 (acfg, 0xffffff);
-
- /* Then emit the whole method order */
- for (l = acfg->method_order; l != NULL; l = l->next) {
- i = GPOINTER_TO_UINT (l->data);
-
- if (acfg->cfgs [i]) {
- emit_int32 (acfg, i);
- }
- }
- emit_line (acfg);
-
- sprintf (symbol, "method_order_end");
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, symbol, FALSE);
- emit_label (acfg, symbol);
-}
-
-static void
-emit_exception_info (MonoAotCompile *acfg)
-{
- int i;
- char symbol [256];
-
- sprintf (symbol, "ex_info");
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- /* To reduce size of generated assembly */
- sprintf (symbol, "ex");
- emit_label (acfg, symbol);
-
- for (i = 0; i < acfg->nmethods; ++i) {
- if (acfg->cfgs [i])
- emit_exception_debug_info (acfg, acfg->cfgs [i]);
- }
-
- sprintf (symbol, "ex_info_offsets");
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- for (i = 0; i < acfg->nmethods; ++i) {
- if (acfg->cfgs [i]) {
- sprintf (symbol, ".Le_%x_p", i);
- emit_symbol_diff (acfg, symbol, "ex", 0);
- } else {
- emit_int32 (acfg, 0);
- }
- }
- emit_line (acfg);
-}
-
-static void
-emit_class_info (MonoAotCompile *acfg)
-{
- int i;
- char symbol [256];
-
- sprintf (symbol, "class_info");
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i)
- emit_klass_info (acfg, MONO_TOKEN_TYPE_DEF | (i + 1));
-
- sprintf (symbol, "class_info_offsets");
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
- sprintf (symbol, ".LK_I_%x", i);
- emit_symbol_diff (acfg, symbol, "class_info", 0);
- }
- emit_line (acfg);
-}
-
-typedef struct ClassNameTableEntry {
- guint32 token, index;
- struct ClassNameTableEntry *next;
-} ClassNameTableEntry;
-
-static void
-emit_class_name_table (MonoAotCompile *acfg)
-{
- int i, table_size;
- guint32 token, hash;
- MonoClass *klass;
- GPtrArray *table;
- char *full_name;
- char symbol [256];
- ClassNameTableEntry *entry, *new_entry;
-
- /*
- * Construct a chained hash table for mapping class names to typedef tokens.
- */
- table_size = g_spaced_primes_closest ((int)(acfg->image->tables [MONO_TABLE_TYPEDEF].rows * 1.5));
- table = g_ptr_array_sized_new (table_size);
- for (i = 0; i < table_size; ++i)
- g_ptr_array_add (table, NULL);
- for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
- token = MONO_TOKEN_TYPE_DEF | (i + 1);
- klass = mono_class_get (acfg->image, token);
- full_name = mono_type_get_name_full (mono_class_get_type (klass), MONO_TYPE_NAME_FORMAT_FULL_NAME);
- hash = g_str_hash (full_name) % table_size;
- g_free (full_name);
-
- /* FIXME: Allocate from the mempool */
- new_entry = g_new0 (ClassNameTableEntry, 1);
- new_entry->token = token;
-
- entry = g_ptr_array_index (table, hash);
- if (entry == NULL) {
- new_entry->index = hash;
- g_ptr_array_index (table, hash) = new_entry;
- } else {
- while (entry->next)
- entry = entry->next;
-
- entry->next = new_entry;
- new_entry->index = table->len;
- g_ptr_array_add (table, new_entry);
- }
- }
-
- /* Emit the table */
- sprintf (symbol, "class_name_table");
- emit_section_change (acfg, ".text", 0);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- /* FIXME: Optimize memory usage */
- g_assert (table_size < 65000);
- emit_int16 (acfg, table_size);
- g_assert (table->len < 65000);
- for (i = 0; i < table->len; ++i) {
- ClassNameTableEntry *entry = g_ptr_array_index (table, i);
-
- if (entry == NULL) {
- emit_int16 (acfg, 0);
- emit_int16 (acfg, 0);
- } else {
- emit_int16 (acfg, mono_metadata_token_index (entry->token));
- if (entry->next)
- emit_int16 (acfg, entry->next->index);
- else
- emit_int16 (acfg, 0);
- }
- }
-}
-
-static void
-emit_image_table (MonoAotCompile *acfg)
-{
- int i;
- char symbol [256];
-
- /*
- * The image table is small but referenced in a lot of places.
- * So we emit it at once, and reference its elements by an index.
- */
-
- sprintf (symbol, "mono_image_table");
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- emit_int32 (acfg, acfg->image_table->len);
- for (i = 0; i < acfg->image_table->len; i++) {
- MonoImage *image = (MonoImage*)g_ptr_array_index (acfg->image_table, i);
- MonoAssemblyName *aname = &image->assembly->aname;
-
- /* FIXME: Support multi-module assemblies */
- g_assert (image->assembly->image == image);
-
- emit_string (acfg, image->assembly_name);
- emit_string (acfg, image->guid);
- emit_string (acfg, aname->culture ? aname->culture : "");
- emit_string (acfg, (const char*)aname->public_key_token);
-
- emit_alignment (acfg, 8);
- emit_int32 (acfg, aname->flags);
- emit_int32 (acfg, aname->major);
- emit_int32 (acfg, aname->minor);
- emit_int32 (acfg, aname->build);
- emit_int32 (acfg, aname->revision);
- }
-}
-
-static void
-emit_got_info (MonoAotCompile *acfg)
-{
- char symbol [256];
- int i, first_plt_got_patch, buf_size;
- guint8 *p, *buf;
- guint32 *got_info_offsets;
-
- /* Add the patches needed by the PLT to the GOT */
- acfg->plt_got_offset_base = acfg->got_offset;
- first_plt_got_patch = acfg->shared_patches->len;
- for (i = 1; i < acfg->plt_offset; ++i) {
- MonoJumpInfo *patch_info = g_hash_table_lookup (acfg->plt_offset_to_patch, GUINT_TO_POINTER (i));
-
- g_ptr_array_add (acfg->shared_patches, patch_info);
- }
-
- acfg->got_offset += acfg->plt_offset;
-
- /**
- * FIXME:
- * - optimize offsets table.
- * - reduce number of exported symbols.
- * - emit info for a klass only once.
- * - determine when a method uses a GOT slot which is guaranteed to be already
- * initialized.
- * - clean up and document the code.
- * - use String.Empty in class libs.
- */
-
- /* Encode info required to decode shared GOT entries */
- buf_size = acfg->shared_patches->len * 64;
- p = buf = mono_mempool_alloc (acfg->mempool, buf_size);
- got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->shared_patches->len * sizeof (guint32));
- acfg->plt_got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->plt_offset * sizeof (guint32));
- for (i = 0; i < acfg->shared_patches->len; ++i) {
- MonoJumpInfo *ji = g_ptr_array_index (acfg->shared_patches, i);
-
- got_info_offsets [i] = p - buf;
- /* No need to encode the patch type for non-PLT patches */
- if (i >= first_plt_got_patch) {
- acfg->plt_got_info_offsets [i - first_plt_got_patch + 1] = got_info_offsets [i];
- encode_value (ji->type, p, &p);
- }
- encode_patch (acfg, ji, p, &p);
- }
-
- g_assert (p - buf <= buf_size);
-
- acfg->stats.got_info_size = p - buf;
-
- /* Emit got_info table */
- sprintf (symbol, "got_info");
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- emit_bytes (acfg, buf, p - buf);
-
- /* Emit got_info_offsets table */
- sprintf (symbol, "got_info_offsets");
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- for (i = 0; i < acfg->shared_patches->len; ++i)
- emit_int32 (acfg, got_info_offsets [i]);
-
- acfg->stats.got_info_offsets_size = acfg->shared_patches->len * 4;
-}
-
-static void
-emit_got (MonoAotCompile *acfg)
-{
- char symbol [256];
-
- /* Don't make GOT global so accesses to it don't need relocations */
- sprintf (symbol, "got");
- emit_section_change (acfg, ".bss", 0);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
- if (acfg->got_offset > 0)
- emit_zero_bytes (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
-}
-
-static void
-emit_globals (MonoAotCompile *acfg)
-{
- char *opts_str;
- char *build_info;
-
- emit_string_symbol (acfg, "mono_assembly_guid" , acfg->image->guid);
-
- emit_string_symbol (acfg, "mono_aot_version", MONO_AOT_FILE_VERSION);
-
- opts_str = g_strdup_printf ("%d", acfg->opts);
- emit_string_symbol (acfg, "mono_aot_opt_flags", opts_str);
- g_free (opts_str);
-
- emit_string_symbol (acfg, "mono_aot_full_aot", acfg->aot_opts.full_aot ? "TRUE" : "FALSE");
-
- if (acfg->aot_opts.bind_to_runtime_version) {
- build_info = mono_get_runtime_build_info ();
- emit_string_symbol (acfg, "mono_runtime_version", build_info);
- g_free (build_info);
- } else {
- emit_string_symbol (acfg, "mono_runtime_version", "");
- }
-
- /*
- * Some platforms like the iphone have no working dlsym (). To work around this,
- * we create an ELF ctor function which will be invoked by dlopen, and which
- * will call a function in the AOT loader to register the symbols used by the
- * image.
- * When static linking, we emit a global which will point to the symbol table.
- */
- if (acfg->aot_opts.no_dlsym) {
- int i;
- char symbol [256];
-
- if (acfg->aot_opts.static_link)
- /* Emit a string holding the assembly name */
- emit_string_symbol (acfg, "mono_aot_assembly_name", acfg->image->assembly->aname.name);
-
- /* Emit the names */
- for (i = 0; i < acfg->globals->len; ++i) {
- char *name = g_ptr_array_index (acfg->globals, i);
-
- sprintf (symbol, "name_%d", i);
- emit_section_change (acfg, ".text", 1);
- emit_label (acfg, symbol);
- emit_string (acfg, name);
- }
-
- /* Emit the globals table */
- sprintf (symbol, "globals");
- emit_section_change (acfg, ".data", 0);
- /* This is not a global, since it is accessed by the init function */
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-
- for (i = 0; i < acfg->globals->len; ++i) {
- char *name = g_ptr_array_index (acfg->globals, i);
-
- sprintf (symbol, "name_%d", i);
- emit_pointer (acfg, symbol);
-
- sprintf (symbol, "%s", name);
- emit_pointer (acfg, symbol);
- }
- /* Null terminate the table */
- emit_pointer (acfg, NULL);
- emit_pointer (acfg, NULL);
-
- if (acfg->aot_opts.static_link) {
- char *p;
-
- /*
- * Emit a global symbol which can be passed by an embedding app to
- * mono_aot_register_module ().
- */
-#if defined(__MACH__)
- sprintf (symbol, "_mono_aot_module_%s_info", acfg->image->assembly->aname.name);
-#else
- sprintf (symbol, "mono_aot_module_%s_info", acfg->image->assembly->aname.name);
-#endif
-
- /* Get rid of characters which cannot occur in symbols */
- p = symbol;
- for (p = symbol; *p; ++p) {
- if (!(isalnum (*p) || *p == '_'))
- *p = '_';
- }
- acfg->static_linking_symbol = g_strdup (symbol);
- emit_global_inner (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
- emit_pointer (acfg, "globals");
- } else {
- sprintf (symbol, "init_%s", acfg->image->assembly->aname.name);
- emit_section_change (acfg, ".text", 1);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
-#ifdef USE_BIN_WRITER
- g_assert_not_reached ();
-#else
-#ifdef __x86_64__
- fprintf (acfg->fp, "leaq globals(%%rip), %%rdi\n");
- fprintf (acfg->fp, "call mono_aot_register_globals@PLT\n");
- fprintf (acfg->fp, "ret\n");
- fprintf (acfg->fp, ".section .ctors,\"aw\",@progbits\n");
- emit_alignment (acfg, 8);
- emit_pointer (acfg, symbol);
-#elif defined(__arm__) && defined(__MACH__)
-
- fprintf (acfg->fp, ".text\n");
- fprintf (acfg->fp, ".align 3\n");
-
- fprintf (acfg->fp, "ldr r0, .L5\n");
- fprintf (acfg->fp, ".LPIC0:\n");
- fprintf (acfg->fp, "add r0, pc, r0\n");
- fprintf (acfg->fp, "ldr r0, [r0]\n");
- fprintf (acfg->fp, "b _mono_aot_register_globals@PLT\n");
- fprintf (acfg->fp, ".align 2\n");
-
- fprintf (acfg->fp, ".L5:\n");
- fprintf (acfg->fp, ".long globals_ptr-(.LPIC0+8)\n");
-
- fprintf (acfg->fp, ".data\n");
- fprintf (acfg->fp, ".align 2\n");
- fprintf (acfg->fp, "globals_ptr:\n");
- fprintf (acfg->fp, ".long globals\n");
-
- fprintf (acfg->fp, ".mod_init_func\n");
- fprintf (acfg->fp, ".align 2\n");
- fprintf (acfg->fp, ".long %s@target1\n", symbol);
-
-#elif defined(__arm__)
- /*
- * Taken from gcc generated code for:
- * static int i;
- * void foo () { bar (&i); }
- * gcc --shared -fPIC -O2
- */
- fprintf (acfg->fp, "ldr r3, .L5\n");
- fprintf (acfg->fp, "ldr r0, .L5+4\n");
- fprintf (acfg->fp, ".LPIC0:\n");
- fprintf (acfg->fp, "add r3, pc, r3\n");
- fprintf (acfg->fp, "add r0, r3, r0\n");
- fprintf (acfg->fp, "b mono_aot_register_globals(PLT)\n");
-
- fprintf (acfg->fp, ".L5:\n");
- fprintf (acfg->fp, ".word _GLOBAL_OFFSET_TABLE_-(.LPIC0+8)\n");
- fprintf (acfg->fp, ".word globals(GOTOFF)\n");
-
- fprintf (acfg->fp, ".section .init_array,\"aw\",%%init_array\n");
- fprintf (acfg->fp, ".align 2\n");
- fprintf (acfg->fp, ".word %s(target1)\n", symbol);
-#else
- g_assert_not_reached ();
-#endif
-#endif
- }
- }
-}
-
-/*
- * Emit a structure containing all the information not stored elsewhere.
- */
-static void
-emit_file_info (MonoAotCompile *acfg)
-{
- char symbol [128];
+ g_ptr_array_add (acfg->extra_methods, cfg->orig_method);
- sprintf (symbol, "mono_aot_file_info");
- emit_section_change (acfg, ".data", 0);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
- emit_global (acfg, symbol, FALSE);
+ mono_acfg_unlock (acfg);
- /* The data emitted here must match MonoAotFileInfo in aot-runtime.c. */
- emit_int32 (acfg, acfg->plt_got_offset_base);
- emit_int32 (acfg, acfg->trampoline_got_offset_base);
- emit_int32 (acfg, acfg->num_aot_trampolines);
- emit_int32 (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
- emit_int32 (acfg, acfg->plt_offset);
- emit_pointer (acfg, "got");
+ InterlockedIncrement (&acfg->stats.ccount);
}
+
+static void
+compile_thread_main (gpointer *user_data)
+{
+ MonoDomain *domain = user_data [0];
+ MonoAotCompile *acfg = user_data [1];
+ GPtrArray *methods = user_data [2];
+ int i;
-/*****************************************/
-/* Emitting DWARF debug information */
-/*****************************************/
+ mono_thread_attach (domain);
-static G_GNUC_UNUSED void
-emit_uleb128 (MonoAotCompile *acfg, guint32 value)
-{
- do {
- guint8 b = value & 0x7f;
- value >>= 7;
- if (value != 0) /* more bytes to come */
- b |= 0x80;
- emit_byte (acfg, b);
- } while (value);
+ for (i = 0; i < methods->len; ++i)
+ compile_method (acfg, g_ptr_array_index (methods, i));
}
-static G_GNUC_UNUSED void
-emit_sleb128 (MonoAotCompile *acfg, gint64 value)
+static void
+load_profile_files (MonoAotCompile *acfg)
{
- gboolean more = 1;
- gboolean negative = (value < 0);
- guint32 size = 64;
- guint8 byte;
+ FILE *infile;
+ char *tmp;
+ int file_index, res, method_index, i;
+ char ver [256];
+ guint32 token;
+ GList *unordered;
- while (more) {
- byte = value & 0x7f;
- value >>= 7;
- /* the following is unnecessary if the
- * implementation of >>= uses an arithmetic rather
- * than logical shift for a signed left operand
- */
- if (negative)
- /* sign extend */
- value |= - ((gint64)1 <<(size - 7));
- /* sign bit of byte is second high order bit (0x40) */
- if ((value == 0 && !(byte & 0x40)) ||
- (value == -1 && (byte & 0x40)))
- more = 0;
- else
- byte |= 0x80;
- emit_byte (acfg, byte);
- }
-}
+ file_index = 0;
+ while (TRUE) {
+ tmp = g_strdup_printf ("%s/.mono/aot-profile-data/%s-%s-%d", g_get_home_dir (), acfg->image->assembly_name, acfg->image->guid, file_index);
-static G_GNUC_UNUSED void
-encode_uleb128 (guint32 value, guint8 *buf, guint8 **endbuf)
-{
- guint8 *p = buf;
+ if (!g_file_test (tmp, G_FILE_TEST_IS_REGULAR)) {
+ g_free (tmp);
+ break;
+ }
- do {
- guint8 b = value & 0x7f;
- value >>= 7;
- if (value != 0) /* more bytes to come */
- b |= 0x80;
- *p ++ = b;
- } while (value);
+ infile = fopen (tmp, "r");
+ g_assert (infile);
- *endbuf = p;
-}
+ printf ("Using profile data file '%s'\n", tmp);
+ g_free (tmp);
-static G_GNUC_UNUSED void
-encode_sleb128 (gint32 value, guint8 *buf, guint8 **endbuf)
-{
- gboolean more = 1;
- gboolean negative = (value < 0);
- guint32 size = 32;
- guint8 byte;
- guint8 *p = buf;
+ file_index ++;
- while (more) {
- byte = value & 0x7f;
- value >>= 7;
- /* the following is unnecessary if the
- * implementation of >>= uses an arithmetic rather
- * than logical shift for a signed left operand
- */
- if (negative)
- /* sign extend */
- value |= - (1 <<(size - 7));
- /* sign bit of byte is second high order bit (0x40) */
- if ((value == 0 && !(byte & 0x40)) ||
- (value == -1 && (byte & 0x40)))
- more = 0;
- else
- byte |= 0x80;
- *p ++= byte;
- }
+ res = fscanf (infile, "%32s\n", ver);
+ if ((res != 1) || strcmp (ver, "#VER:1") != 0) {
+ printf ("Profile file has wrong version or invalid.\n");
+ fclose (infile);
+ continue;
+ }
- *endbuf = p;
-}
+ while (TRUE) {
+ res = fscanf (infile, "%d\n", &token);
+ if (res < 1)
+ break;
-static void
-emit_dwarf_abbrev (MonoAotCompile *acfg, int code, int tag, gboolean has_child,
- int *attrs, int attrs_len)
-{
- int i;
+ method_index = mono_metadata_token_index (token) - 1;
- emit_uleb128 (acfg, code);
- emit_uleb128 (acfg, tag);
- emit_byte (acfg, has_child);
+ if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (method_index)))
+ acfg->method_order = g_list_append (acfg->method_order, GUINT_TO_POINTER (method_index));
+ }
+ fclose (infile);
+ }
- for (i = 0; i < attrs_len; i++)
- emit_uleb128 (acfg, attrs [i]);
- emit_uleb128 (acfg, 0);
- emit_uleb128 (acfg, 0);
+ /* Add missing methods */
+ unordered = NULL;
+ for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
+ if (!g_list_find (acfg->method_order, GUINT_TO_POINTER (i)))
+ unordered = g_list_prepend (unordered, GUINT_TO_POINTER (i));
+ }
+ unordered = g_list_reverse (unordered);
+ if (acfg->method_order)
+ g_list_last (acfg->method_order)->next = unordered;
+ else
+ acfg->method_order = unordered;
}
+/**
+ * alloc_got_slots:
+ *
+ * Collect all patches which have shared GOT entries and alloc entries for them. The
+ * rest will get entries allocated during emit_code ().
+ */
static void
-emit_cie (MonoAotCompile *acfg)
+alloc_got_slots (MonoAotCompile *acfg)
{
-#if defined(__x86_64__) || defined(__arm__)
- emit_section_change (acfg, ".debug_frame", 0);
+ int i;
+ GList *l;
+ MonoJumpInfo *ji;
- emit_alignment (acfg, 8);
+ /* Slot 0 is reserved for the address of the current assembly */
+ ji = mono_mempool_alloc0 (acfg->mempool, sizeof (MonoAotCompile));
+ ji->type = MONO_PATCH_INFO_IMAGE;
+ ji->data.image = acfg->image;
- /* Emit a CIE */
- emit_symbol_diff (acfg, ".Lcie0_end", ".", -4); /* length */
- emit_int32 (acfg, 0xffffffff); /* CIE id */
- emit_byte (acfg, 3); /* version */
- emit_string (acfg, ""); /* augmention */
- emit_sleb128 (acfg, 1); /* code alignment factor */
-#ifdef __x86_64__
- emit_sleb128 (acfg, -8); /* data alignment factor */
- emit_uleb128 (acfg, AMD64_RIP);
-#elif defined(__arm__)
- emit_sleb128 (acfg, -4); /* data alignment factor */
- emit_uleb128 (acfg, mono_hw_reg_to_dwarf_reg (ARMREG_LR));
-#else
- g_assert_not_reached ();
-#endif
+ get_shared_got_offset (acfg, ji);
-#ifdef __x86_64__
- emit_byte (acfg, DW_CFA_def_cfa);
- emit_uleb128 (acfg, mono_hw_reg_to_dwarf_reg (AMD64_RSP));
- emit_uleb128 (acfg, 8); /* offset=8 */
- emit_byte (acfg, DW_CFA_offset | AMD64_RIP);
- emit_uleb128 (acfg, 1); /* offset=-8 */
-#elif defined(__arm__)
-#else
- g_assert_not_reached ();
-#endif
+ for (l = acfg->method_order; l != NULL; l = l->next) {
+ i = GPOINTER_TO_UINT (l->data);
- emit_alignment (acfg, sizeof (gpointer));
- emit_label (acfg, ".Lcie0_end");
-#endif
-}
+ if (acfg->cfgs [i]) {
+ MonoCompile *cfg = acfg->cfgs [i];
-static void
-emit_pointer_value (MonoAotCompile *acfg, gpointer ptr)
-{
- gssize val = (gssize)ptr;
- emit_bytes (acfg, (guint8*)&val, sizeof (gpointer));
+ for (ji = cfg->patch_info; ji; ji = ji->next) {
+ if (mono_aot_is_shared_got_patch (ji))
+ get_shared_got_offset (acfg, ji);
+ }
+ }
+ }
}
static void
-emit_fde (MonoAotCompile *acfg, int fde_index, char *start_symbol, char *end_symbol,
- guint8 *code, guint32 code_size, GSList *unwind_ops, gboolean use_cie)
+emit_code (MonoAotCompile *acfg)
{
-#if defined(__x86_64__) || defined(__arm__)
- char symbol [128];
- GSList *l;
- guint8 *uw_info;
- guint32 uw_info_len;
-
-#ifdef __arm__
- if (!unwind_ops)
- /*
- * The debugger can unwind without unwind info, but gets confused by empty
- * info.
- */
- return;
-#endif
+ int i;
+ char symbol [256];
+ GList *l;
- emit_section_change (acfg, ".debug_frame", 0);
+ sprintf (symbol, "methods");
+ emit_section_change (acfg, ".text", 0);
+ emit_global (acfg, symbol, TRUE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
- sprintf (symbol, ".Lfde%d_end", fde_index);
- emit_symbol_diff (acfg, symbol, ".", -4); /* length */
- emit_int32 (acfg, 0); /* CIE_pointer */
- if (start_symbol) {
- emit_pointer (acfg, start_symbol); /* initial_location */
- emit_symbol_diff (acfg, end_symbol, start_symbol, 0); /* address_range */
- } else {
- emit_pointer_value (acfg, code);
- emit_int32 (acfg, code_size);
- }
-#if SIZEOF_VOID_P == 8
- /* Upper 32 bits of code size */
- emit_int32 (acfg, 0);
-#endif
+ /*
+ * Emit some padding so the local symbol for the first method doesn't have the
+ * same address as 'methods'.
+ */
+ emit_zero_bytes (acfg, 16);
- l = unwind_ops;
-#ifdef __x86_64__
- if (use_cie)
- /* Skip the first two ops which are in the CIE */
- l = l->next->next;
-#endif
+ for (l = acfg->method_order; l != NULL; l = l->next) {
+ i = GPOINTER_TO_UINT (l->data);
- /* Convert the list of MonoUnwindOps to the format used by DWARF */
- uw_info = mono_unwind_ops_encode (l, &uw_info_len);
- emit_bytes (acfg, uw_info, uw_info_len);
- g_free (uw_info);
+ if (acfg->cfgs [i])
+ emit_method_code (acfg, acfg->cfgs [i]);
+ }
- emit_alignment (acfg, sizeof (gpointer));
- sprintf (symbol, ".Lfde%d_end", fde_index);
+ sprintf (symbol, "methods_end");
+ emit_section_change (acfg, ".text", 0);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
emit_label (acfg, symbol);
-#endif
-}
-/* Abbrevations */
-#define ABBREV_COMPILE_UNIT 1
-#define ABBREV_SUBPROGRAM 2
-#define ABBREV_PARAM 3
-#define ABBREV_BASE_TYPE 4
-#define ABBREV_STRUCT_TYPE 5
-#define ABBREV_DATA_MEMBER 6
-#define ABBREV_TYPEDEF 7
-#define ABBREV_ENUM_TYPE 8
-#define ABBREV_ENUMERATOR 9
-#define ABBREV_NAMESPACE 10
-#define ABBREV_VARIABLE 11
-#define ABBREV_VARIABLE_LOCLIST 12
-
-static int compile_unit_attr [] = {
- DW_AT_producer ,DW_FORM_string,
- DW_AT_name ,DW_FORM_string,
- DW_AT_comp_dir ,DW_FORM_string,
- DW_AT_language ,DW_FORM_data1,
- DW_AT_low_pc ,DW_FORM_addr,
- DW_AT_high_pc ,DW_FORM_addr,
- DW_AT_stmt_list ,DW_FORM_data4
-};
-
-static int subprogram_attr [] = {
- DW_AT_name , DW_FORM_string,
- DW_AT_low_pc , DW_FORM_addr,
- DW_AT_high_pc , DW_FORM_addr,
- DW_AT_frame_base , DW_FORM_block1
-};
+ sprintf (symbol, "method_offsets");
+ emit_section_change (acfg, ".text", 1);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
-static int param_attr [] = {
- DW_AT_name, DW_FORM_string,
- DW_AT_type, DW_FORM_ref4,
- DW_AT_location, DW_FORM_block1
-};
+ for (i = 0; i < acfg->nmethods; ++i) {
+ if (acfg->cfgs [i]) {
+ sprintf (symbol, ".Lm_%x", i);
+ emit_symbol_diff (acfg, symbol, "methods", 0);
+ } else {
+ emit_int32 (acfg, 0xffffffff);
+ }
+ }
+ emit_line (acfg);
+}
-static int base_type_attr [] = {
- DW_AT_byte_size, DW_FORM_data1,
- DW_AT_encoding, DW_FORM_data1,
- DW_AT_name, DW_FORM_string
-};
+static void
+emit_info (MonoAotCompile *acfg)
+{
+ int i;
+ char symbol [256];
+ GList *l;
-static int struct_type_attr [] = {
- DW_AT_name, DW_FORM_string,
- DW_AT_byte_size, DW_FORM_udata,
-};
+ /* Emit method info */
+ sprintf (symbol, "method_info");
+ emit_section_change (acfg, ".text", 1);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
-static int data_member_attr [] = {
- DW_AT_name, DW_FORM_string,
- DW_AT_type, DW_FORM_ref4,
- DW_AT_data_member_location, DW_FORM_block1
-};
+ /* To reduce size of generated assembly code */
+ sprintf (symbol, "mi");
+ emit_label (acfg, symbol);
-static int typedef_attr [] = {
- DW_AT_name, DW_FORM_string,
- DW_AT_type, DW_FORM_ref4
-};
+ for (l = acfg->method_order; l != NULL; l = l->next) {
+ i = GPOINTER_TO_UINT (l->data);
-static int enum_type_attr [] = {
- DW_AT_name, DW_FORM_string,
- DW_AT_byte_size, DW_FORM_udata,
- DW_AT_type, DW_FORM_ref4,
-};
+ if (acfg->cfgs [i])
+ emit_method_info (acfg, acfg->cfgs [i]);
+ }
-static int enumerator_attr [] = {
- DW_AT_name, DW_FORM_string,
- DW_AT_const_value, DW_FORM_sdata,
-};
+ sprintf (symbol, "method_info_offsets");
+ emit_section_change (acfg, ".text", 1);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
-static int namespace_attr [] = {
- DW_AT_name, DW_FORM_string,
-};
+ for (i = 0; i < acfg->nmethods; ++i) {
+ if (acfg->cfgs [i]) {
+ sprintf (symbol, ".Lm_%x_p", i);
+ emit_symbol_diff (acfg, symbol, "mi", 0);
+ } else {
+ emit_int32 (acfg, 0);
+ }
+ }
+ emit_line (acfg);
+}
-static int variable_attr [] = {
- DW_AT_name, DW_FORM_string,
- DW_AT_type, DW_FORM_ref4,
- DW_AT_location, DW_FORM_block1
-};
+#endif /* #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT) */
-static int variable_loclist_attr [] = {
- DW_AT_name, DW_FORM_string,
- DW_AT_type, DW_FORM_ref4,
- DW_AT_location, DW_FORM_data4
-};
+/*
+ * mono_aot_str_hash:
+ *
+ * Hash function for strings which we use to hash strings for things which are
+ * saved in the AOT image, since g_str_hash () can change.
+ */
+guint
+mono_aot_str_hash (gconstpointer v1)
+{
+ /* Same as g_str_hash () in glib */
+ char *p = (char *) v1;
+ guint hash = *p;
-typedef struct DwarfBasicType {
- const char *die_name, *name;
- int type;
- int size;
- int encoding;
-} DwarfBasicType;
-
-static DwarfBasicType basic_types [] = {
- { ".LDIE_I1", "sbyte", MONO_TYPE_I1, 1, DW_ATE_signed },
- { ".LDIE_U1", "byte", MONO_TYPE_U1, 1, DW_ATE_unsigned },
- { ".LDIE_I2", "short", MONO_TYPE_I2, 2, DW_ATE_signed },
- { ".LDIE_U2", "ushort", MONO_TYPE_U2, 2, DW_ATE_unsigned },
- { ".LDIE_I4", "int", MONO_TYPE_I4, 4, DW_ATE_signed },
- { ".LDIE_U4", "uint", MONO_TYPE_U4, 4, DW_ATE_unsigned },
- { ".LDIE_I8", "long", MONO_TYPE_I8, 8, DW_ATE_signed },
- { ".LDIE_U8", "ulong", MONO_TYPE_U8, 8, DW_ATE_unsigned },
- { ".LDIE_R4", "float", MONO_TYPE_R4, 4, DW_ATE_float },
- { ".LDIE_R8", "double", MONO_TYPE_R8, 8, DW_ATE_float },
- { ".LDIE_BOOLEAN", "boolean", MONO_TYPE_BOOLEAN, 1, DW_ATE_boolean },
- { ".LDIE_STRING", "string", MONO_TYPE_STRING, sizeof (gpointer), DW_ATE_address },
- { ".LDIE_OBJECT", "object", MONO_TYPE_OBJECT, sizeof (gpointer), DW_ATE_address },
- { ".LDIE_SZARRAY", "object", MONO_TYPE_SZARRAY, sizeof (gpointer), DW_ATE_address },
-};
+ while (*p++) {
+ if (*p)
+ hash = (hash << 5) - hash + *p;
+ }
-/* Constants for encoding line number special opcodes */
-#define OPCODE_BASE 13
-#define LINE_BASE -5
-#define LINE_RANGE 14
+ return hash;
+}
-/* Subsections of the .debug_line section */
-#define LINE_SUBSECTION_HEADER 1
-#define LINE_SUBSECTION_INCLUDES 2
-#define LINE_SUBSECTION_FILES 3
-#define LINE_SUBSECTION_DATA 4
-#define LINE_SUBSECTION_END 5
+#define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
+#define mix(a,b,c) { \
+ a -= c; a ^= rot(c, 4); c += b; \
+ b -= a; b ^= rot(a, 6); a += c; \
+ c -= b; c ^= rot(b, 8); b += a; \
+ a -= c; a ^= rot(c,16); c += b; \
+ b -= a; b ^= rot(a,19); a += c; \
+ c -= b; c ^= rot(b, 4); b += a; \
+}
+#define final(a,b,c) { \
+ c ^= b; c -= rot(b,14); \
+ a ^= c; a -= rot(c,11); \
+ b ^= a; b -= rot(a,25); \
+ c ^= b; c -= rot(b,16); \
+ a ^= c; a -= rot(c,4); \
+ b ^= a; b -= rot(a,14); \
+ c ^= b; c -= rot(b,24); \
+}
-static int
-emit_line_number_file_name (MonoAotCompile *acfg, const char *name,
- gint64 last_mod_time, gint64 file_size)
+/*
+ * mono_aot_method_hash:
+ *
+ * Return a hash code for methods which only depends on metadata.
+ */
+guint32
+mono_aot_method_hash (MonoMethod *method)
{
- int index;
- int dir_index;
- char *basename = NULL;
-
- if (!acfg->file_to_index)
- acfg->file_to_index = g_hash_table_new (g_str_hash, g_str_equal);
-
- index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->file_to_index, name));
- if (index > 0)
- return index;
+ MonoMethodSignature *sig;
+ MonoClass *klass;
+ int i;
+ int hashes_count;
+ guint32 *hashes_start, *hashes;
+ guint32 a, b, c;
- if (g_path_is_absolute (name)) {
- char *dir = g_path_get_dirname (name);
+ /* Similar to the hash in mono_method_get_imt_slot () */
- if (!acfg->dir_to_index)
- acfg->dir_to_index = g_hash_table_new (g_str_hash, g_str_equal);
+ sig = mono_method_signature (method);
- dir_index = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->dir_to_index, dir));
- if (dir_index == 0) {
- emit_section_change (acfg, ".debug_line", LINE_SUBSECTION_INCLUDES);
- emit_string (acfg, dir);
+ hashes_count = sig->param_count + 5;
+ hashes_start = malloc (hashes_count * sizeof (guint32));
+ hashes = hashes_start;
- dir_index = ++ acfg->line_number_dir_index;
- g_hash_table_insert (acfg->dir_to_index, g_strdup (dir), GUINT_TO_POINTER (dir_index));
- }
+ /* Some wrappers are assigned to random classes */
+ if (!method->wrapper_type || method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
+ klass = method->klass;
+ else
+ klass = mono_defaults.object_class;
- g_free (dir);
+ if (!method->wrapper_type) {
+ char *full_name = mono_type_full_name (&klass->byval_arg);
- basename = g_path_get_basename (name);
+ hashes [0] = mono_aot_str_hash (full_name);
+ hashes [1] = 0;
+ g_free (full_name);
} else {
- dir_index = 0;
+ hashes [0] = mono_aot_str_hash (klass->name);
+ hashes [1] = mono_aot_str_hash (klass->name_space);
+ }
+ hashes [2] = mono_aot_str_hash (method->name);
+ hashes [3] = method->wrapper_type;
+ hashes [4] = mono_metadata_type_hash (sig->ret);
+ for (i = 0; i < sig->param_count; i++) {
+ /* This is needed for some reason */
+ if (method->wrapper_type && sig->params [i]->type == MONO_TYPE_GENERICINST)
+ hashes [5 + i] = MONO_TYPE_GENERICINST;
+ else
+ hashes [5 + i] = mono_metadata_type_hash (sig->params [i]);
+ }
+
+ /* Setup internal state */
+ a = b = c = 0xdeadbeef + (((guint32)hashes_count)<<2);
+
+ /* Handle most of the hashes */
+ while (hashes_count > 3) {
+ a += hashes [0];
+ b += hashes [1];
+ c += hashes [2];
+ mix (a,b,c);
+ hashes_count -= 3;
+ hashes += 3;
+ }
+
+ /* Handle the last 3 hashes (all the case statements fall through) */
+ switch (hashes_count) {
+ case 3 : c += hashes [2];
+ case 2 : b += hashes [1];
+ case 1 : a += hashes [0];
+ final (a,b,c);
+ case 0: /* nothing left to add */
+ break;
}
+
+ free (hashes_start);
+
+ return c;
+}
+#undef rot
+#undef mix
+#undef final
- emit_section_change (acfg, ".debug_line", LINE_SUBSECTION_FILES);
+/*
+ * mono_aot_wrapper_name:
+ *
+ * Return a string which uniqely identifies the given wrapper method.
+ */
+char*
+mono_aot_wrapper_name (MonoMethod *method)
+{
+ char *name, *tmpsig, *klass_desc;
- if (basename)
- emit_string (acfg, basename);
- else
- emit_string (acfg, name);
- emit_uleb128 (acfg, dir_index);
- emit_byte (acfg, 0);
- emit_byte (acfg, 0);
+ tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
- emit_section_change (acfg, ".debug_line", LINE_SUBSECTION_DATA);
+ switch (method->wrapper_type) {
+ case MONO_WRAPPER_RUNTIME_INVOKE:
+ case MONO_WRAPPER_DELEGATE_INVOKE:
+ case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
+ case MONO_WRAPPER_DELEGATE_END_INVOKE:
+ /* This is a hack to work around the fact that runtime invoke wrappers get assigned to some random class */
+ name = g_strdup_printf ("%s (%s)", method->name, tmpsig);
+ break;
+ default:
+ klass_desc = mono_type_full_name (&method->klass->byval_arg);
- if (basename)
- g_free (basename);
+ name = g_strdup_printf ("%s:%s (%s)", klass_desc, method->name, tmpsig);
+ break;
+ }
- index = ++ acfg->line_number_file_index;
- g_hash_table_insert (acfg->file_to_index, g_strdup (name), GUINT_TO_POINTER (index));
+ g_free (tmpsig);
- return index;
+ return name;
}
-static void
-emit_base_dwarf_info (MonoAotCompile *acfg)
+/*
+ * mono_aot_tramp_info_create:
+ *
+ * Create a MonoAotTrampInfo structure from the arguments.
+ */
+MonoAotTrampInfo*
+mono_aot_tramp_info_create (const char *name, guint8 *code, guint32 code_size)
{
- char *s, *build_info;
- int i;
+ MonoAotTrampInfo *info = g_new0 (MonoAotTrampInfo, 1);
- emit_section_change (acfg, ".debug_abbrev", 0);
- emit_dwarf_abbrev (acfg, ABBREV_COMPILE_UNIT, DW_TAG_compile_unit, TRUE,
- compile_unit_attr, G_N_ELEMENTS (compile_unit_attr));
- emit_dwarf_abbrev (acfg, ABBREV_SUBPROGRAM, DW_TAG_subprogram, TRUE,
- subprogram_attr, G_N_ELEMENTS (subprogram_attr));
- emit_dwarf_abbrev (acfg, ABBREV_PARAM, DW_TAG_formal_parameter, FALSE,
- param_attr, G_N_ELEMENTS (param_attr));
- emit_dwarf_abbrev (acfg, ABBREV_BASE_TYPE, DW_TAG_base_type, FALSE,
- base_type_attr, G_N_ELEMENTS (base_type_attr));
- emit_dwarf_abbrev (acfg, ABBREV_STRUCT_TYPE, DW_TAG_class_type, TRUE,
- struct_type_attr, G_N_ELEMENTS (struct_type_attr));
- emit_dwarf_abbrev (acfg, ABBREV_DATA_MEMBER, DW_TAG_member, FALSE,
- data_member_attr, G_N_ELEMENTS (data_member_attr));
- emit_dwarf_abbrev (acfg, ABBREV_TYPEDEF, DW_TAG_typedef, FALSE,
- typedef_attr, G_N_ELEMENTS (typedef_attr));
- emit_dwarf_abbrev (acfg, ABBREV_ENUM_TYPE, DW_TAG_enumeration_type, TRUE,
- enum_type_attr, G_N_ELEMENTS (enum_type_attr));
- emit_dwarf_abbrev (acfg, ABBREV_ENUMERATOR, DW_TAG_enumerator, FALSE,
- enumerator_attr, G_N_ELEMENTS (enumerator_attr));
- emit_dwarf_abbrev (acfg, ABBREV_NAMESPACE, DW_TAG_namespace, TRUE,
- namespace_attr, G_N_ELEMENTS (namespace_attr));
- emit_dwarf_abbrev (acfg, ABBREV_VARIABLE, DW_TAG_variable, FALSE,
- variable_attr, G_N_ELEMENTS (variable_attr));
- emit_dwarf_abbrev (acfg, ABBREV_VARIABLE_LOCLIST, DW_TAG_variable, FALSE,
- variable_loclist_attr, G_N_ELEMENTS (variable_loclist_attr));
- emit_byte (acfg, 0);
-
- emit_section_change (acfg, ".debug_info", 0);
- emit_label (acfg, ".Ldebug_info_start");
- emit_symbol_diff (acfg, ".Ldebug_info_end", ".", -4); /* length */
- emit_int16 (acfg, 0x3); /* DWARF version 3 */
- emit_int32 (acfg, 0); /* .debug_abbrev offset */
- emit_byte (acfg, sizeof (gpointer)); /* address size */
-
- /* Emit this into a separate section so it gets placed at the end */
- emit_section_change (acfg, ".debug_info", 1);
- emit_int32 (acfg, 0); /* close everything */
- emit_label (acfg, ".Ldebug_info_end");
- emit_section_change (acfg, ".debug_info", 0);
-
- /* Compilation unit */
- emit_uleb128 (acfg, ABBREV_COMPILE_UNIT);
- build_info = mono_get_runtime_build_info ();
- s = g_strdup_printf ("Mono AOT Compiler %s", build_info);
- emit_string (acfg, s);
- g_free (build_info);
- g_free (s);
- emit_string (acfg, "JITted code");
- emit_string (acfg, "");
- emit_byte (acfg, DW_LANG_C);
- emit_pointer_value (acfg, 0);
- emit_pointer_value (acfg, 0);
- /* offset into .debug_line section */
- emit_symbol_diff (acfg, ".Ldebug_line_start", ".Ldebug_line_section_start", 0);
-
- /* Base types */
- for (i = 0; i < G_N_ELEMENTS (basic_types); ++i) {
- emit_label (acfg, basic_types [i].die_name);
- emit_uleb128 (acfg, ABBREV_BASE_TYPE);
- emit_byte (acfg, basic_types [i].size);
- emit_byte (acfg, basic_types [i].encoding);
- emit_string (acfg, basic_types [i].name);
- }
-
- /* debug_loc section */
- emit_section_change (acfg, ".debug_loc", 0);
- emit_label (acfg, ".Ldebug_loc_start");
+ info->name = (char*)name;
+ info->code = code;
+ info->code_size = code_size;
- /* Line number info header */
- /*
- * GAS seems to emit its own data to the end of the first subsection, so we use
- * subsections 1, 2 etc:
- * 1 - contains the header
- * 2 - contains the file names
- * 3 - contains the end of the header + the data
- * 4 - the end symbol
- */
- emit_section_change (acfg, ".debug_line", 0);
- emit_label (acfg, ".Ldebug_line_section_start");
- emit_section_change (acfg, ".debug_line", LINE_SUBSECTION_HEADER);
- emit_label (acfg, ".Ldebug_line_start");
- emit_symbol_diff (acfg, ".Ldebug_line_end", ".", -4); /* length */
- emit_int16 (acfg, 0x2); /* version */
- emit_symbol_diff (acfg, ".Ldebug_line_header_end", ".", -4); /* header_length */
- emit_byte (acfg, 1); /* minimum_instruction_length */
- emit_byte (acfg, 1); /* default_is_stmt */
- emit_byte (acfg, LINE_BASE); /* line_base */
- emit_byte (acfg, LINE_RANGE); /* line_range */
- emit_byte (acfg, OPCODE_BASE); /* opcode_base */
- emit_byte (acfg, 0); /* standard_opcode_lengths */
- emit_byte (acfg, 1);
- emit_byte (acfg, 1);
- emit_byte (acfg, 1);
- emit_byte (acfg, 1);
- emit_byte (acfg, 0);
- emit_byte (acfg, 0);
- emit_byte (acfg, 0);
- emit_byte (acfg, 1);
- emit_byte (acfg, 0);
- emit_byte (acfg, 0);
- emit_byte (acfg, 1);
-
- /* Includes */
- emit_section_change (acfg, ".debug_line", LINE_SUBSECTION_INCLUDES);
-
- /* End of Includes */
- emit_section_change (acfg, ".debug_line", LINE_SUBSECTION_FILES);
- emit_byte (acfg, 0);
-
- /* Files */
- emit_line_number_file_name (acfg, "xdb.il", 0, 0);
-
- /* End of Files */
- emit_section_change (acfg, ".debug_line", LINE_SUBSECTION_DATA);
- emit_byte (acfg, 0);
-
- emit_label (acfg, ".Ldebug_line_header_end");
-
- /* Emit this into a separate subsection so it gets placed at the end */
- emit_section_change (acfg, ".debug_line", LINE_SUBSECTION_END);
-
- emit_byte (acfg, 0);
- emit_byte (acfg, 1);
- emit_byte (acfg, DW_LNE_end_sequence);
-
- emit_label (acfg, ".Ldebug_line_end");
-
- emit_cie (acfg);
+ return info;
}
-/* Returns the local symbol pointing to the emitted debug info */
-static char*
-emit_class_dwarf_info (MonoAotCompile *acfg, MonoClass *klass)
+/*
+ * mono_is_shared_got_patch:
+ *
+ * Return whenever PATCH_INFO refers to a patch which needs a shared GOT
+ * entry.
+ */
+gboolean
+mono_aot_is_shared_got_patch (MonoJumpInfo *patch_info)
{
- char *die;
- char *full_name;
- gpointer iter;
- MonoClassField *field;
- const char *fdie;
- int k;
- gboolean emit_namespace = FALSE;
+ switch (patch_info->type) {
+ case MONO_PATCH_INFO_VTABLE:
+ case MONO_PATCH_INFO_CLASS:
+ case MONO_PATCH_INFO_IID:
+ case MONO_PATCH_INFO_ADJUSTED_IID:
+ case MONO_PATCH_INFO_FIELD:
+ case MONO_PATCH_INFO_SFLDA:
+ case MONO_PATCH_INFO_DECLSEC:
+ case MONO_PATCH_INFO_LDTOKEN:
+ case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
+ case MONO_PATCH_INFO_RVA:
+ case MONO_PATCH_INFO_METHODCONST:
+ case MONO_PATCH_INFO_IMAGE:
+ return TRUE;
+ default:
+ return FALSE;
+ }
+}
- // FIXME: Appdomains
- if (!acfg->class_to_die)
- acfg->class_to_die = g_hash_table_new (NULL, NULL);
+#if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
- die = g_hash_table_lookup (acfg->class_to_die, klass);
- if (die)
- return die;
+typedef struct HashEntry {
+ guint32 key, value, index;
+ struct HashEntry *next;
+} HashEntry;
- if (!((klass->byval_arg.type == MONO_TYPE_CLASS) || klass->enumtype))
- return NULL;
+/*
+ * emit_extra_methods:
+ *
+ * Emit methods which are not in the METHOD table, like wrappers.
+ */
+static void
+emit_extra_methods (MonoAotCompile *acfg)
+{
+ int i, table_size, buf_size;
+ char symbol [256];
+ guint8 *p, *buf;
+ guint32 *info_offsets;
+ guint32 hash;
+ GPtrArray *table;
+ HashEntry *entry, *new_entry;
+ int nmethods, max_chain_length;
+ int *chain_lengths;
- /*
- * FIXME: gdb can't handle namespaces in languages it doesn't know about.
- */
- /*
- if (klass->name_space && klass->name_space [0] != '\0')
- emit_namespace = TRUE;
- */
- if (emit_namespace) {
- emit_uleb128 (acfg, ABBREV_NAMESPACE);
- emit_string (acfg, klass->name_space);
- }
+ info_offsets = g_new0 (guint32, acfg->extra_methods->len);
- full_name = g_strdup_printf ("%s%s%s", klass->name_space, klass->name_space ? "." : "", klass->name);
+ buf_size = acfg->extra_methods->len * 256 + 256;
+ p = buf = g_malloc (buf_size);
- die = g_strdup_printf (".LTDIE_%d", acfg->tdie_index);
- emit_label (acfg, die);
+ /* Encode method info */
+ nmethods = 0;
+ /* So offsets are > 0 */
+ *p = 0;
+ p++;
+ for (i = 0; i < acfg->extra_methods->len; ++i) {
+ MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
+ MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
+ char *name;
- if (klass->enumtype) {
- int size = mono_class_value_size (mono_class_from_mono_type (klass->enum_basetype), NULL);
+ if (!cfg)
+ continue;
- emit_uleb128 (acfg, ABBREV_ENUM_TYPE);
- emit_string (acfg, full_name);
- emit_uleb128 (acfg, size);
- for (k = 0; k < G_N_ELEMENTS (basic_types); ++k)
- if (basic_types [k].type == klass->enum_basetype->type)
- break;
- g_assert (k < G_N_ELEMENTS (basic_types));
- emit_symbol_diff (acfg, basic_types [k].die_name, ".Ldebug_info_start", 0);
+ nmethods ++;
+ info_offsets [i] = p - buf;
- /* Emit enum values */
- iter = NULL;
- while ((field = mono_class_get_fields (klass, &iter))) {
- const char *p;
- int len;
- MonoTypeEnum def_type;
-
- if (strcmp ("value__", mono_field_get_name (field)) == 0)
- continue;
- if (mono_field_is_deleted (field))
- continue;
-
- emit_uleb128 (acfg, ABBREV_ENUMERATOR);
- emit_string (acfg, mono_field_get_name (field));
-
- p = mono_class_get_field_default_value (field, &def_type);
- len = mono_metadata_decode_blob_size (p, &p);
- switch (klass->enum_basetype->type) {
- case MONO_TYPE_U1:
- case MONO_TYPE_I1:
- emit_sleb128 (acfg, *p);
- break;
- case MONO_TYPE_CHAR:
- case MONO_TYPE_U2:
- case MONO_TYPE_I2:
- emit_sleb128 (acfg, read16 (p));
- break;
- case MONO_TYPE_U4:
- case MONO_TYPE_I4:
- emit_sleb128 (acfg, read32 (p));
- break;
- case MONO_TYPE_U8:
- case MONO_TYPE_I8:
- emit_sleb128 (acfg, read64 (p));
+ name = NULL;
+ if (method->wrapper_type) {
+ /*
+ * We encode some wrappers using their name, since encoding them
+ * directly would be difficult. This also avoids creating the wrapper
+ * methods at runtime, since they are not needed anyway.
+ */
+ switch (method->wrapper_type) {
+ case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
+ case MONO_WRAPPER_SYNCHRONIZED:
+ /* encode_method_ref () can handle these */
break;
default:
- g_assert_not_reached ();
+ name = mono_aot_wrapper_name (method);
+ break;
}
}
- } else {
- emit_uleb128 (acfg, ABBREV_STRUCT_TYPE);
- emit_string (acfg, full_name);
- emit_uleb128 (acfg, klass->instance_size);
- /* Emit fields */
- iter = NULL;
- while ((field = mono_class_get_fields (klass, &iter))) {
- guint8 buf [128];
- guint8 *p;
-
- if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
- continue;
-
- for (k = 0; k < G_N_ELEMENTS (basic_types); ++k)
- if (basic_types [k].type == field->type->type)
- break;
- if (k < G_N_ELEMENTS (basic_types) && field->type->type != MONO_TYPE_SZARRAY && field->type->type != MONO_TYPE_CLASS) {
- fdie = basic_types [k].die_name;
-
- emit_uleb128 (acfg, ABBREV_DATA_MEMBER);
- emit_string (acfg, field->name);
- emit_symbol_diff (acfg, fdie, ".Ldebug_info_start", 0);
- /* location */
- p = buf;
- *p ++= DW_OP_plus_uconst;
- encode_uleb128 (field->offset, p, &p);
-
- emit_byte (acfg, p - buf);
- emit_bytes (acfg, buf, p - buf);
- }
+ if (name) {
+ encode_value (1, p, &p);
+ encode_value (method->wrapper_type, p, &p);
+ strcpy ((char*)p, name);
+ p += strlen (name ) + 1;
+ g_free (name);
+ } else {
+ encode_value (0, p, &p);
+ encode_method_ref (acfg, method, p, &p);
}
+
+ g_assert ((p - buf) < buf_size);
}
- /* Type end */
- emit_uleb128 (acfg, 0x0);
+ g_assert ((p - buf) < buf_size);
+
+ /* Emit method info */
+ sprintf (symbol, "extra_method_info");
+ emit_section_change (acfg, ".text", 1);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
+
+ emit_bytes (acfg, buf, p - buf);
+
+ emit_line (acfg);
+
+ /*
+ * Construct a chained hash table for mapping indexes in extra_method_info to
+ * method indexes.
+ */
+ table_size = g_spaced_primes_closest ((int)(nmethods * 1.5));
+ table = g_ptr_array_sized_new (table_size);
+ for (i = 0; i < table_size; ++i)
+ g_ptr_array_add (table, NULL);
+ chain_lengths = g_new0 (int, table_size);
+ max_chain_length = 0;
+ for (i = 0; i < acfg->extra_methods->len; ++i) {
+ MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
+ MonoCompile *cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
+ guint32 key, value;
+
+ if (!cfg)
+ continue;
+
+ key = info_offsets [i];
+ value = get_method_index (acfg, method);
- /* Add a typedef, so we can reference the type without a 'struct' in gdb */
- emit_uleb128 (acfg, ABBREV_TYPEDEF);
- emit_string (acfg, full_name);
- emit_symbol_diff (acfg, die, ".Ldebug_info_start", 0);
+ hash = mono_aot_method_hash (method) % table_size;
- g_free (full_name);
- acfg->tdie_index ++;
+ chain_lengths [hash] ++;
+ max_chain_length = MAX (max_chain_length, chain_lengths [hash]);
+ /* FIXME: Allocate from the mempool */
+ new_entry = g_new0 (HashEntry, 1);
+ new_entry->key = key;
+ new_entry->value = value;
- if (emit_namespace) {
- /* Namespace end */
- emit_uleb128 (acfg, 0x0);
+ entry = g_ptr_array_index (table, hash);
+ if (entry == NULL) {
+ new_entry->index = hash;
+ g_ptr_array_index (table, hash) = new_entry;
+ } else {
+ while (entry->next)
+ entry = entry->next;
+
+ entry->next = new_entry;
+ new_entry->index = table->len;
+ g_ptr_array_add (table, new_entry);
+ }
}
- g_hash_table_insert (acfg->class_to_die, klass, die);
- return die;
-}
+ //printf ("MAX: %d\n", max_chain_length);
-static void
-emit_var_type (MonoAotCompile *acfg, MonoType *t)
-{
- MonoClass *klass = mono_class_from_mono_type (t);
- int j;
- const char *tdie;
+ /* Emit the table */
+ sprintf (symbol, "extra_method_table");
+ emit_section_change (acfg, ".text", 0);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
- for (j = 0; j < G_N_ELEMENTS (basic_types); ++j)
- if (basic_types [j].type == t->type)
- break;
- if (j < G_N_ELEMENTS (basic_types))
- tdie = basic_types [j].die_name;
- else {
- switch (t->type) {
- case MONO_TYPE_CLASS:
- case MONO_TYPE_ARRAY:
- tdie = ".LDIE_OBJECT";
- break;
- case MONO_TYPE_VALUETYPE:
- if (klass->enumtype)
- tdie = emit_class_dwarf_info (acfg, klass);
+ g_assert (table_size < 65000);
+ emit_int32 (acfg, table_size);
+ g_assert (table->len < 65000);
+ for (i = 0; i < table->len; ++i) {
+ HashEntry *entry = g_ptr_array_index (table, i);
+
+ if (entry == NULL) {
+ emit_int32 (acfg, 0);
+ emit_int32 (acfg, 0);
+ emit_int32 (acfg, 0);
+ } else {
+ g_assert (entry->key > 0);
+ emit_int32 (acfg, entry->key);
+ emit_int32 (acfg, entry->value);
+ if (entry->next)
+ emit_int32 (acfg, entry->next->index);
else
- tdie = ".LDIE_I4";
- break;
- default:
- tdie = ".LDIE_I4";
- break;
+ emit_int32 (acfg, 0);
}
}
- if (t->byref)
- // FIXME:
- tdie = ".LDIE_I4";
- emit_symbol_diff (acfg, tdie, ".Ldebug_info_start", 0);
-}
-static void
-encode_var_location (MonoAotCompile *acfg, MonoInst *ins, guint8 *p, guint8 **endp)
-{
- /* location */
- /* FIXME: This needs a location list, since the args can go from reg->stack */
- if (!ins || ins->flags & MONO_INST_IS_DEAD) {
- /* gdb treats this as optimized out */
- } else if (ins->opcode == OP_REGVAR) {
- *p = DW_OP_reg0 + mono_hw_reg_to_dwarf_reg (ins->dreg);
- p ++;
- } else if (ins->opcode == OP_REGOFFSET) {
- *p ++= DW_OP_breg0 + mono_hw_reg_to_dwarf_reg (ins->inst_basereg);
- encode_sleb128 (ins->inst_offset, p, &p);
- } else {
- // FIXME:
- *p ++ = DW_OP_reg0;
- }
+ /*
+ * Emit a table reverse mapping method indexes to their index in extra_method_info.
+ * This is used by mono_aot_find_jit_info ().
+ */
+ sprintf (symbol, "extra_method_info_offsets");
+ emit_section_change (acfg, ".text", 0);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
+
+ emit_int32 (acfg, acfg->extra_methods->len);
+ for (i = 0; i < acfg->extra_methods->len; ++i) {
+ MonoMethod *method = g_ptr_array_index (acfg->extra_methods, i);
- *endp = p;
-}
+ emit_int32 (acfg, get_method_index (acfg, method));
+ emit_int32 (acfg, info_offsets [i]);
+ }
+}
static void
-emit_loclist (MonoAotCompile *acfg, MonoInst *ins,
- guint8 *loclist_begin_addr, guint8 *loclist_end_addr,
- guint8 *expr, guint32 expr_len)
+emit_method_order (MonoAotCompile *acfg)
{
- char label [128];
-
- emit_section_change (acfg, ".debug_loc", 0);
- sprintf (label, ".Lloclist_%d", acfg->loclist_index ++ );
- emit_label (acfg, label);
+ int i, index, len;
+ char symbol [256];
+ GList *l;
- emit_pointer_value (acfg, loclist_begin_addr);
- emit_pointer_value (acfg, loclist_end_addr);
- emit_byte (acfg, expr_len % 256);
- emit_byte (acfg, expr_len / 256);
- emit_bytes (acfg, expr, expr_len);
+ sprintf (symbol, "method_order");
+ emit_section_change (acfg, ".text", 1);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
- emit_pointer_value (acfg, NULL);
- emit_pointer_value (acfg, NULL);
+ /* First emit an index table */
+ index = 0;
+ len = 0;
+ for (l = acfg->method_order; l != NULL; l = l->next) {
+ i = GPOINTER_TO_UINT (l->data);
- emit_section_change (acfg, ".debug_info", 0);
- emit_symbol_diff (acfg, label, ".Ldebug_loc_start", 0);
-}
+ if (acfg->cfgs [i]) {
+ if ((index % 1024) == 0) {
+ emit_int32 (acfg, i);
+ }
-/*
- * MonoDisHelper->tokener doesn't take an IP argument, and we can't add one since
- * it is a public header.
- */
-static const guint8 *token_handler_ip;
+ index ++;
+ }
-static char*
-token_handler (MonoDisHelper *dh, MonoMethod *method, guint32 token)
-{
- char *res, *desc;
+ len ++;
+ }
+ emit_int32 (acfg, 0xffffff);
- if (method->wrapper_type) {
- gpointer data = mono_method_get_wrapper_data (method, token);
+ /* Then emit the whole method order */
+ for (l = acfg->method_order; l != NULL; l = l->next) {
+ i = GPOINTER_TO_UINT (l->data);
- switch (*token_handler_ip) {
- case CEE_ISINST:
- case CEE_LDELEMA:
- res = g_strdup_printf ("<%s>", ((MonoClass*)data)->name);
- break;
- case CEE_NEWOBJ:
- case CEE_CALL:
- desc = mono_method_full_name (data, TRUE);
- res = g_strdup_printf ("<%s>", desc);
- g_free (desc);
- break;
- case CEE_CALLI:
- desc = mono_signature_get_desc (data, FALSE);
- res = g_strdup_printf ("<%s>", desc);
- g_free (desc);
- break;
- default:
- res = g_strdup_printf ("<%p>", data);
+ if (acfg->cfgs [i]) {
+ emit_int32 (acfg, i);
}
- } else {
- res = g_strdup_printf ("<0x%08x>", token);
- }
+ }
+ emit_line (acfg);
- return res;
+ sprintf (symbol, "method_order_end");
+ emit_section_change (acfg, ".text", 1);
+ emit_global (acfg, symbol, FALSE);
+ emit_label (acfg, symbol);
}
-/*
- * disasm_ins:
- *
- * Produce a disassembled form of the IL instruction at IP. This is an extension
- * of mono_disasm_code_one () which can disasm tokens, handle wrapper methods, and
- * CEE_MONO_ opcodes.
- */
-static char*
-disasm_ins (MonoMethod *method, const guchar *ip, const guint8 **endip)
+static void
+emit_exception_info (MonoAotCompile *acfg)
{
- char *dis;
- MonoDisHelper dh;
- MonoMethodHeader *header = mono_method_get_header (method);
-
- memset (&dh, 0, sizeof (dh));
- dh.newline = "";
- dh.label_format = "IL_%04x: ";
- dh.label_target = "IL_%04x";
- dh.tokener = token_handler;
-
- token_handler_ip = ip;
- if (*ip == MONO_CUSTOM_PREFIX) {
- guint32 token;
- gpointer data;
+ int i;
+ char symbol [256];
- switch (ip [1]) {
- case CEE_MONO_ICALL: {
- MonoJitICallInfo *info;
+ sprintf (symbol, "ex_info");
+ emit_section_change (acfg, ".text", 1);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
- token = read32 (ip + 2);
- data = mono_method_get_wrapper_data (method, token);
- info = mono_find_jit_icall_by_addr (data);
- g_assert (info);
+ /* To reduce size of generated assembly */
+ sprintf (symbol, "ex");
+ emit_label (acfg, symbol);
- dis = g_strdup_printf ("IL_%04x: mono_icall <%s>", (int)(ip - header->code), info->name);
- ip += 6;
- break;
- }
- case CEE_MONO_CLASSCONST: {
- token = read32 (ip + 2);
- data = mono_method_get_wrapper_data (method, token);
+ for (i = 0; i < acfg->nmethods; ++i) {
+ if (acfg->cfgs [i])
+ emit_exception_debug_info (acfg, acfg->cfgs [i]);
+ }
- dis = g_strdup_printf ("IL_%04x: mono_classconst <%s>", (int)(ip - header->code), ((MonoClass*)data)->name);
- ip += 6;
- break;
- }
- default:
- dis = mono_disasm_code_one (&dh, method, ip, &ip);
+ sprintf (symbol, "ex_info_offsets");
+ emit_section_change (acfg, ".text", 1);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
+
+ for (i = 0; i < acfg->nmethods; ++i) {
+ if (acfg->cfgs [i]) {
+ sprintf (symbol, ".Le_%x_p", i);
+ emit_symbol_diff (acfg, symbol, "ex", 0);
+ } else {
+ emit_int32 (acfg, 0);
}
- } else {
- dis = mono_disasm_code_one (&dh, method, ip, &ip);
}
- token_handler_ip = NULL;
-
- *endip = ip;
- return dis;
+ emit_line (acfg);
}
-static gint32
-il_offset_from_address (MonoMethod *method, MonoDebugMethodJitInfo *jit,
- guint32 native_offset)
+static void
+emit_unwind_info (MonoAotCompile *acfg)
{
int i;
+ char symbol [128];
- if (!jit->line_numbers)
- return -1;
-
- for (i = jit->num_line_numbers - 1; i >= 0; i--) {
- MonoDebugLineNumberEntry lne = jit->line_numbers [i];
-
- if (lne.native_offset <= native_offset)
- return lne.il_offset;
- }
-
- return -1;
-}
-
-static int max_special_addr_diff = 0;
-
-static inline void
-emit_advance_op (MonoAotCompile *acfg, int line_diff, int addr_diff)
-{
- gint64 opcode = 0;
+ /*
+ * The unwind info contains a lot of duplicates so we emit each unique
+ * entry once, and only store the offset from the start of the table in the
+ * exception info.
+ */
- if (line_diff == 0)
- return;
+ sprintf (symbol, "unwind_info");
+ emit_section_change (acfg, ".text", 1);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
+ emit_global (acfg, symbol, FALSE);
- /* Use a special opcode if possible */
- if (line_diff - LINE_BASE < LINE_RANGE) {
- if (max_special_addr_diff == 0)
- max_special_addr_diff = (255 - OPCODE_BASE) / LINE_RANGE;
+ for (i = 0; i < acfg->unwind_ops->len; ++i) {
+ guint32 index = GPOINTER_TO_UINT (g_ptr_array_index (acfg->unwind_ops, i));
+ guint8 *unwind_info;
+ guint32 unwind_info_len;
+ guint8 buf [16];
+ guint8 *p;
- if (addr_diff > max_special_addr_diff && (addr_diff < 2 * max_special_addr_diff)) {
- emit_byte (acfg, DW_LNS_const_add_pc);
- addr_diff -= max_special_addr_diff;
- }
+ unwind_info = mono_get_cached_unwind_info (index, &unwind_info_len);
- opcode = (line_diff - LINE_BASE) + (LINE_RANGE * addr_diff) + OPCODE_BASE;
- if (opcode > 255)
- opcode = 0;
- }
+ p = buf;
+ encode_value (unwind_info_len, p, &p);
+ emit_bytes (acfg, buf, p - buf);
+ emit_bytes (acfg, unwind_info, unwind_info_len);
- if (opcode != 0) {
- emit_byte (acfg, opcode);
- } else {
- emit_byte (acfg, DW_LNS_advance_line);
- emit_sleb128 (acfg, line_diff);
- emit_byte (acfg, DW_LNS_advance_pc);
- emit_sleb128 (acfg, addr_diff);
- emit_byte (acfg, DW_LNS_copy);
+ acfg->stats.unwind_info_size += (p - buf) + unwind_info_len;
}
}
static void
-emit_line_number_info (MonoAotCompile *acfg, MonoMethod *method, guint8 *code,
- guint32 code_size, MonoDebugMethodJitInfo *debug_info)
+emit_class_info (MonoAotCompile *acfg)
{
- guint32 prev_line = 0;
- guint32 prev_native_offset = 0;
- int i, file_index, il_offset, prev_il_offset;
- gboolean first = TRUE;
- MonoDebugSourceLocation *loc;
- char *prev_file_name = NULL;
- MonoMethodHeader *header = mono_method_get_header (method);
- MonoDebugMethodInfo *minfo;
-
- minfo = mono_debug_lookup_method (method);
-
- /* FIXME: Avoid quadratic behavior */
-
- prev_line = 1;
- prev_il_offset = -1;
-
- for (i = 0; i < code_size; ++i) {
- if (!minfo)
- continue;
+ int i;
+ char symbol [256];
- if (!debug_info->line_numbers)
- continue;
+ sprintf (symbol, "class_info");
+ emit_section_change (acfg, ".text", 1);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
- /*
- * FIXME: Its hard to optimize this, since the line number info is not
- * sorted by il offset or native offset
- */
- il_offset = il_offset_from_address (method, debug_info, i);
+ for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i)
+ emit_klass_info (acfg, MONO_TOKEN_TYPE_DEF | (i + 1));
- if (il_offset < 0)
- continue;
+ sprintf (symbol, "class_info_offsets");
+ emit_section_change (acfg, ".text", 1);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
- if (il_offset == prev_il_offset)
- continue;
+ for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
+ sprintf (symbol, ".LK_I_%x", i);
+ emit_symbol_diff (acfg, symbol, "class_info", 0);
+ }
+ emit_line (acfg);
+}
- prev_il_offset = il_offset;
+typedef struct ClassNameTableEntry {
+ guint32 token, index;
+ struct ClassNameTableEntry *next;
+} ClassNameTableEntry;
- loc = mono_debug_symfile_lookup_location (minfo, il_offset);
+static void
+emit_class_name_table (MonoAotCompile *acfg)
+{
+ int i, table_size;
+ guint32 token, hash;
+ MonoClass *klass;
+ GPtrArray *table;
+ char *full_name;
+ char symbol [256];
+ ClassNameTableEntry *entry, *new_entry;
- if (loc) {
- int line_diff = (gint32)loc->row - (gint32)prev_line;
- int addr_diff = i - prev_native_offset;
+ /*
+ * Construct a chained hash table for mapping class names to typedef tokens.
+ */
+ table_size = g_spaced_primes_closest ((int)(acfg->image->tables [MONO_TABLE_TYPEDEF].rows * 1.5));
+ table = g_ptr_array_sized_new (table_size);
+ for (i = 0; i < table_size; ++i)
+ g_ptr_array_add (table, NULL);
+ for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
+ token = MONO_TOKEN_TYPE_DEF | (i + 1);
+ klass = mono_class_get (acfg->image, token);
+ full_name = mono_type_get_name_full (mono_class_get_type (klass), MONO_TYPE_NAME_FORMAT_FULL_NAME);
+ hash = mono_aot_str_hash (full_name) % table_size;
+ g_free (full_name);
- if (first) {
- emit_section_change (acfg, ".debug_line", LINE_SUBSECTION_DATA);
+ /* FIXME: Allocate from the mempool */
+ new_entry = g_new0 (ClassNameTableEntry, 1);
+ new_entry->token = token;
- emit_byte (acfg, 0);
- emit_byte (acfg, sizeof (gpointer) + 1);
- emit_byte (acfg, DW_LNE_set_address);
- emit_pointer_value (acfg, code);
+ entry = g_ptr_array_index (table, hash);
+ if (entry == NULL) {
+ new_entry->index = hash;
+ g_ptr_array_index (table, hash) = new_entry;
+ } else {
+ while (entry->next)
+ entry = entry->next;
+
+ entry->next = new_entry;
+ new_entry->index = table->len;
+ g_ptr_array_add (table, new_entry);
+ }
+ }
- /*
- * The prolog+initlocals region does not have a line number, this
- * makes them belong to the first line of the method.
- */
- emit_byte (acfg, DW_LNS_advance_line);
- emit_sleb128 (acfg, (gint32)loc->row - (gint32)prev_line);
- prev_line = loc->row;
- }
+ /* Emit the table */
+ sprintf (symbol, "class_name_table");
+ emit_section_change (acfg, ".text", 0);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
- if (loc->row != prev_line) {
- if (!prev_file_name || strcmp (loc->source_file, prev_file_name) != 0) {
- /* Add an entry to the file table */
- /* FIXME: Avoid duplicates */
- file_index = emit_line_number_file_name (acfg, loc->source_file, 0, 0);
- g_free (prev_file_name);
- prev_file_name = g_strdup (loc->source_file);
-
- emit_byte (acfg, DW_LNS_set_file);
- emit_uleb128 (acfg, file_index);
- emit_byte (acfg, DW_LNS_copy);
- }
+ /* FIXME: Optimize memory usage */
+ g_assert (table_size < 65000);
+ emit_int16 (acfg, table_size);
+ g_assert (table->len < 65000);
+ for (i = 0; i < table->len; ++i) {
+ ClassNameTableEntry *entry = g_ptr_array_index (table, i);
- //printf ("X: %p(+0x%x) %d %s:%d(+%d)\n", code + i, addr_diff, loc->il_offset, loc->source_file, loc->row, line_diff);
+ if (entry == NULL) {
+ emit_int16 (acfg, 0);
+ emit_int16 (acfg, 0);
+ } else {
+ emit_int16 (acfg, mono_metadata_token_index (entry->token));
+ if (entry->next)
+ emit_int16 (acfg, entry->next->index);
+ else
+ emit_int16 (acfg, 0);
+ }
+ }
+}
- emit_advance_op (acfg, line_diff, addr_diff);
+static void
+emit_image_table (MonoAotCompile *acfg)
+{
+ int i;
+ char symbol [256];
- prev_line = loc->row;
- prev_native_offset = i;
- }
+ /*
+ * The image table is small but referenced in a lot of places.
+ * So we emit it at once, and reference its elements by an index.
+ */
- first = FALSE;
- g_free (loc);
- }
- }
+ sprintf (symbol, "mono_image_table");
+ emit_section_change (acfg, ".text", 1);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
- g_free (prev_file_name);
+ emit_int32 (acfg, acfg->image_table->len);
+ for (i = 0; i < acfg->image_table->len; i++) {
+ MonoImage *image = (MonoImage*)g_ptr_array_index (acfg->image_table, i);
+ MonoAssemblyName *aname = &image->assembly->aname;
- if (!first) {
- emit_byte (acfg, DW_LNS_advance_pc);
- emit_sleb128 (acfg, code_size - prev_native_offset);
- emit_byte (acfg, DW_LNS_copy);
+ /* FIXME: Support multi-module assemblies */
+ g_assert (image->assembly->image == image);
- emit_byte (acfg, 0);
- emit_byte (acfg, 1);
- emit_byte (acfg, DW_LNE_end_sequence);
- } else if (!acfg->image) {
- /* No debug info, XDEBUG mode */
- char *name, *dis;
- const guint8 *ip = header->code;
- int prev_line, prev_native_offset;
- int *il_to_line;
+ emit_string (acfg, image->assembly_name);
+ emit_string (acfg, image->guid);
+ emit_string (acfg, aname->culture ? aname->culture : "");
+ emit_string (acfg, (const char*)aname->public_key_token);
- /*
- * Emit the IL code into a temporary file and emit line number info
- * referencing that file.
- */
+ emit_alignment (acfg, 8);
+ emit_int32 (acfg, aname->flags);
+ emit_int32 (acfg, aname->major);
+ emit_int32 (acfg, aname->minor);
+ emit_int32 (acfg, aname->build);
+ emit_int32 (acfg, aname->revision);
+ }
+}
- name = mono_method_full_name (method, TRUE);
- fprintf (acfg->il_file, "// %s\n", name);
- acfg->il_file_line_index ++;
- g_free (name);
+static void
+emit_got_info (MonoAotCompile *acfg)
+{
+ char symbol [256];
+ int i, first_plt_got_patch, buf_size;
+ guint8 *p, *buf;
+ guint32 *got_info_offsets;
- il_to_line = g_new0 (int, header->code_size);
+ /* Add the patches needed by the PLT to the GOT */
+ acfg->plt_got_offset_base = acfg->got_offset;
+ first_plt_got_patch = acfg->shared_patches->len;
+ for (i = 1; i < acfg->plt_offset; ++i) {
+ MonoJumpInfo *patch_info = g_hash_table_lookup (acfg->plt_offset_to_patch, GUINT_TO_POINTER (i));
- emit_section_change (acfg, ".debug_line", LINE_SUBSECTION_DATA);
- emit_byte (acfg, 0);
- emit_byte (acfg, sizeof (gpointer) + 1);
- emit_byte (acfg, DW_LNE_set_address);
- emit_pointer_value (acfg, code);
+ g_ptr_array_add (acfg->shared_patches, patch_info);
+ }
- // FIXME: Optimize this
- // FIXME: Decode tokens in the IL info
- while (ip < header->code + header->code_size) {
- int il_offset = ip - header->code;
+ acfg->got_offset += acfg->plt_offset;
- /* Emit IL */
- acfg->il_file_line_index ++;
+ /**
+ * FIXME:
+ * - optimize offsets table.
+ * - reduce number of exported symbols.
+ * - emit info for a klass only once.
+ * - determine when a method uses a GOT slot which is guaranteed to be already
+ * initialized.
+ * - clean up and document the code.
+ * - use String.Empty in class libs.
+ */
- dis = disasm_ins (method, ip, &ip);
- fprintf (acfg->il_file, "%s\n", dis);
- g_free (dis);
+ /* Encode info required to decode shared GOT entries */
+ buf_size = acfg->shared_patches->len * 64;
+ p = buf = mono_mempool_alloc (acfg->mempool, buf_size);
+ got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->shared_patches->len * sizeof (guint32));
+ acfg->plt_got_info_offsets = mono_mempool_alloc (acfg->mempool, acfg->plt_offset * sizeof (guint32));
+ for (i = 0; i < acfg->shared_patches->len; ++i) {
+ MonoJumpInfo *ji = g_ptr_array_index (acfg->shared_patches, i);
- il_to_line [il_offset] = acfg->il_file_line_index;
+ got_info_offsets [i] = p - buf;
+ /* No need to encode the patch type for non-PLT patches */
+ if (i >= first_plt_got_patch) {
+ acfg->plt_got_info_offsets [i - first_plt_got_patch + 1] = got_info_offsets [i];
+ encode_value (ji->type, p, &p);
}
+ encode_patch (acfg, ji, p, &p);
+ }
- /* Emit line number info */
- prev_line = 0;
- prev_native_offset = 0;
- for (i = 0; i < debug_info->num_line_numbers; ++i) {
- MonoDebugLineNumberEntry *lne = &debug_info->line_numbers [i];
- int line;
+ g_assert (p - buf <= buf_size);
- if (lne->il_offset >= header->code_size)
- continue;
- line = il_to_line [lne->il_offset];
- g_assert (line);
+ acfg->stats.got_info_size = p - buf;
- emit_advance_op (acfg, line - prev_line, (gint32)lne->native_offset - prev_native_offset);
+ /* Emit got_info table */
+ sprintf (symbol, "got_info");
+ emit_section_change (acfg, ".text", 1);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
- prev_line = line;
- prev_native_offset = lne->native_offset;
- }
+ emit_bytes (acfg, buf, p - buf);
- emit_byte (acfg, DW_LNS_advance_pc);
- emit_sleb128 (acfg, code_size - prev_native_offset);
- emit_byte (acfg, DW_LNS_copy);
+ /* Emit got_info_offsets table */
+ sprintf (symbol, "got_info_offsets");
+ emit_section_change (acfg, ".text", 1);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
- emit_byte (acfg, 0);
- emit_byte (acfg, 1);
- emit_byte (acfg, DW_LNE_end_sequence);
+ for (i = 0; i < acfg->shared_patches->len; ++i)
+ emit_int32 (acfg, got_info_offsets [i]);
- fflush (acfg->il_file);
- g_free (il_to_line);
- }
+ acfg->stats.got_info_offsets_size = acfg->shared_patches->len * 4;
}
static void
-emit_method_dwarf_info (MonoAotCompile *acfg, MonoCompile *cfg, MonoMethod *method, char *start_symbol, char *end_symbol, guint8 *code, guint32 code_size, MonoInst **args, MonoInst **locals, GSList *unwind_info, MonoDebugMethodJitInfo *debug_info)
+emit_got (MonoAotCompile *acfg)
{
- char *name;
- MonoMethodSignature *sig;
- MonoMethodHeader *header;
- char **names, **tdies, **local_tdies;
- char **local_names;
- int *local_indexes;
- int i, num_locals;
- guint8 buf [128];
- guint8 *p;
+ char symbol [256];
- emit_section_change (acfg, ".debug_info", 0);
+ /* Don't make GOT global so accesses to it don't need relocations */
+ sprintf (symbol, "got");
+ emit_section_change (acfg, ".bss", 0);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
+ if (acfg->got_offset > 0)
+ emit_zero_bytes (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
- sig = mono_method_signature (method);
- header = mono_method_get_header (method);
+ sprintf (symbol, "mono_aot_got_addr");
+ emit_section_change (acfg, ".data", 0);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
+ emit_pointer (acfg, "got");
+}
- /* Parameter types */
- tdies = g_new0 (char *, sig->param_count + sig->hasthis);
- for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
- MonoType *t;
+static void
+emit_globals (MonoAotCompile *acfg)
+{
+ char *opts_str;
+ char *build_info;
- if (i == 0 && sig->hasthis) {
- t = &method->klass->this_arg;
- } else {
- t = sig->params [i - sig->hasthis];
- }
+ emit_string_symbol (acfg, "mono_assembly_guid" , acfg->image->guid);
- emit_class_dwarf_info (acfg, mono_class_from_mono_type (t));
- }
+ emit_string_symbol (acfg, "mono_aot_version", MONO_AOT_FILE_VERSION);
- /* Local types */
- local_tdies = g_new0 (char *, header->num_locals);
- for (i = 0; i < header->num_locals; ++i) {
- emit_class_dwarf_info (acfg, mono_class_from_mono_type (header->locals [i]));
- }
+ opts_str = g_strdup_printf ("%d", acfg->opts);
+ emit_string_symbol (acfg, "mono_aot_opt_flags", opts_str);
+ g_free (opts_str);
- /* Subprogram */
- names = g_new0 (char *, sig->param_count);
- mono_method_get_param_names (method, (const char **) names);
+ emit_string_symbol (acfg, "mono_aot_full_aot", acfg->aot_opts.full_aot ? "TRUE" : "FALSE");
- emit_uleb128 (acfg, ABBREV_SUBPROGRAM);
- name = mono_method_full_name (method, FALSE);
- emit_string (acfg, name);
- g_free (name);
- if (start_symbol) {
- emit_pointer_unaligned (acfg, start_symbol);
- emit_pointer_unaligned (acfg, end_symbol);
+ if (acfg->aot_opts.bind_to_runtime_version) {
+ build_info = mono_get_runtime_build_info ();
+ emit_string_symbol (acfg, "mono_runtime_version", build_info);
+ g_free (build_info);
} else {
- emit_pointer_value (acfg, code);
- emit_pointer_value (acfg, code + code_size);
+ emit_string_symbol (acfg, "mono_runtime_version", "");
}
- /* frame_base */
- emit_byte (acfg, 2);
- emit_byte (acfg, DW_OP_breg6);
- emit_byte (acfg, 16);
-
- /* Parameters */
- for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
- MonoInst *arg = args ? args [i] : NULL;
- MonoType *t;
- const char *pname;
- char pname_buf [128];
-
- if (i == 0 && sig->hasthis) {
- t = &mono_defaults.object_class->byval_arg;
- pname = "this";
- } else {
- t = sig->params [i - sig->hasthis];
- pname = names [i - sig->hasthis];
- }
-
- emit_uleb128 (acfg, ABBREV_PARAM);
- /* name */
- if (pname[0] == '\0') {
- sprintf (pname_buf, "param%d", i - sig->hasthis);
- pname = pname_buf;
- }
- emit_string (acfg, pname);
- /* type */
- if (!arg || arg->flags & MONO_INST_IS_DEAD)
- emit_var_type (acfg, &mono_defaults.int32_class->byval_arg);
- else
- emit_var_type (acfg, t);
- p = buf;
- encode_var_location (acfg, arg, p, &p);
- emit_byte (acfg, p - buf);
- emit_bytes (acfg, buf, p - buf);
- }
- g_free (names);
+ /*
+ * When static linking, we emit a global which will point to the symbol table.
+ */
+ if (acfg->aot_opts.static_link) {
+ int i;
+ char symbol [256];
+ char *p;
- /* Locals */
- num_locals = mono_debug_lookup_locals (method, &local_names, &local_indexes);
+ /* Emit a string holding the assembly name */
+ emit_string_symbol (acfg, "mono_aot_assembly_name", acfg->image->assembly->aname.name);
- for (i = 0; i < header->num_locals; ++i) {
- MonoInst *ins = locals [i];
- char name_buf [128];
- int j;
- MonoMethodVar *vmv;
- gboolean need_loclist = FALSE;
-
- if (code && get_vreg_to_inst (cfg, ins->dreg)) {
- vmv = MONO_VARINFO (cfg, cfg->vreg_to_var_num [ins->dreg]);
- if (vmv->live_range_start) {
- /* This variable has a precise live range */
- need_loclist = TRUE;
- }
- }
+ /* Emit the names */
+ for (i = 0; i < acfg->globals->len; ++i) {
+ char *name = g_ptr_array_index (acfg->globals, i);
- if (need_loclist)
- emit_uleb128 (acfg, ABBREV_VARIABLE_LOCLIST);
- else
- emit_uleb128 (acfg, ABBREV_VARIABLE);
- /* name */
- for (j = 0; j < num_locals; ++j)
- if (local_indexes [j] == i)
- break;
- if (j < num_locals) {
- emit_string (acfg, local_names [j]);
- } else {
- sprintf (name_buf, "V_%d", i);
- emit_string (acfg, name_buf);
+ sprintf (symbol, "name_%d", i);
+ emit_section_change (acfg, ".text", 1);
+ emit_label (acfg, symbol);
+ emit_string (acfg, name);
}
- /* type */
- if (!ins || ins->flags & MONO_INST_IS_DEAD)
- emit_var_type (acfg, &mono_defaults.int32_class->byval_arg);
- else
- emit_var_type (acfg, header->locals [i]);
- p = buf;
- encode_var_location (acfg, ins, p, &p);
+ /* Emit the globals table */
+ sprintf (symbol, "globals");
+ emit_section_change (acfg, ".data", 0);
+ /* This is not a global, since it is accessed by the init function */
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
- if (need_loclist) {
- if (vmv->live_range_end == 0)
- /* FIXME: Uses made in calls are not recorded */
- vmv->live_range_end = code_size;
- emit_loclist (acfg, ins, code + vmv->live_range_start, code + vmv->live_range_end, buf, p - buf);
- } else {
- emit_byte (acfg, p - buf);
- emit_bytes (acfg, buf, p - buf);
- }
- }
+ for (i = 0; i < acfg->globals->len; ++i) {
+ char *name = g_ptr_array_index (acfg->globals, i);
- g_free (local_names);
- g_free (local_indexes);
+ sprintf (symbol, "name_%d", i);
+ emit_pointer (acfg, symbol);
- /* Subprogram end */
- emit_uleb128 (acfg, 0x0);
+ sprintf (symbol, "%s", name);
+ emit_pointer (acfg, symbol);
+ }
+ /* Null terminate the table */
+ emit_int32 (acfg, 0);
+ emit_int32 (acfg, 0);
- emit_line (acfg);
+ /*
+ * Emit a global symbol which can be passed by an embedding app to
+ * mono_aot_register_module ().
+ */
+#if defined(__MACH__)
+ sprintf (symbol, "_mono_aot_module_%s_info", acfg->image->assembly->aname.name);
+#else
+ sprintf (symbol, "mono_aot_module_%s_info", acfg->image->assembly->aname.name);
+#endif
- /* Emit unwind info */
- emit_fde (acfg, acfg->fde_index, start_symbol, end_symbol, code, code_size, unwind_info, TRUE);
- acfg->fde_index ++;
+ /* Get rid of characters which cannot occur in symbols */
+ p = symbol;
+ for (p = symbol; *p; ++p) {
+ if (!(isalnum (*p) || *p == '_'))
+ *p = '_';
+ }
+ acfg->static_linking_symbol = g_strdup (symbol);
+ emit_global_inner (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
+ emit_pointer (acfg, "globals");
+ }
+}
- /* Emit line number info */
- if (code && debug_info)
- emit_line_number_info (acfg, method, code, code_size, debug_info);
+static void
+emit_mem_end (MonoAotCompile *acfg)
+{
+ char symbol [128];
- emit_line (acfg);
+ sprintf (symbol, "mem_end");
+ emit_section_change (acfg, ".text", 1);
+ emit_global (acfg, symbol, FALSE);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
}
+/*
+ * Emit a structure containing all the information not stored elsewhere.
+ */
static void
-emit_trampoline_dwarf_info (MonoAotCompile *acfg, const char *tramp_name, char *start_symbol, char *end_symbol, guint8 *code, guint32 code_size, GSList *unwind_info)
+emit_file_info (MonoAotCompile *acfg)
{
- emit_section_change (acfg, ".debug_info", 0);
-
- /* Subprogram */
- emit_uleb128 (acfg, ABBREV_SUBPROGRAM);
- emit_string (acfg, tramp_name);
- emit_pointer_value (acfg, code);
- emit_pointer_value (acfg, code + code_size);
- /* frame_base */
- emit_byte (acfg, 2);
- emit_byte (acfg, DW_OP_breg6);
- emit_byte (acfg, 16);
-
- /* Subprogram end */
- emit_uleb128 (acfg, 0x0);
-
- /* Emit unwind info */
- emit_fde (acfg, acfg->fde_index, NULL, NULL, code, code_size, unwind_info, FALSE);
- acfg->fde_index ++;
+ char symbol [128];
+ int i;
+
+ sprintf (symbol, "mono_aot_file_info");
+ emit_section_change (acfg, ".data", 0);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
+ emit_global (acfg, symbol, FALSE);
+
+ /* The data emitted here must match MonoAotFileInfo in aot-runtime.c. */
+ emit_int32 (acfg, acfg->plt_got_offset_base);
+ emit_int32 (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
+ emit_int32 (acfg, acfg->plt_offset);
+
+ for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
+ emit_int32 (acfg, acfg->num_trampolines [i]);
+ for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
+ emit_int32 (acfg, acfg->trampoline_got_offset_base [i]);
+ for (i = 0; i < MONO_AOT_TRAMP_NUM; ++i)
+ emit_int32 (acfg, acfg->trampoline_size [i]);
}
static void
emit_dwarf_info (MonoAotCompile *acfg)
{
-#if defined(USE_ELF_WRITER) && defined(__x86_64__)
+#ifdef EMIT_DWARF_INFO
int i;
char symbol [128], symbol2 [128];
- emit_base_dwarf_info (acfg);
-
/* DIEs for methods */
for (i = 0; i < acfg->nmethods; ++i) {
MonoCompile *cfg = acfg->cfgs [i];
sprintf (symbol, ".Lm_%x", i);
sprintf (symbol2, ".Lme_%x", i);
- emit_method_dwarf_info (acfg, cfg, cfg->method, symbol, symbol2, NULL, 0, cfg->args, cfg->locals, cfg->unwind_ops, NULL);
+ mono_dwarf_writer_emit_method (acfg->dwarf, cfg, cfg->method, symbol, symbol2, NULL, 0, cfg->args, cfg->locals, cfg->unwind_ops, NULL);
}
-#endif /* ELF_WRITER */
+#endif
}
static void
-acfg_free (MonoAotCompile *acfg)
-{
- int i;
-
- for (i = 0; i < acfg->nmethods; ++i)
- if (acfg->cfgs [i])
- g_free (acfg->cfgs [i]);
- g_free (acfg->cfgs);
- g_free (acfg->static_linking_symbol);
- g_ptr_array_free (acfg->methods, TRUE);
- g_ptr_array_free (acfg->shared_patches, TRUE);
- g_ptr_array_free (acfg->image_table, TRUE);
- g_ptr_array_free (acfg->globals, TRUE);
- g_hash_table_destroy (acfg->method_indexes);
- g_hash_table_destroy (acfg->plt_offset_to_patch);
- g_hash_table_destroy (acfg->patch_to_plt_offset);
- g_hash_table_destroy (acfg->patch_to_shared_got_offset);
- g_hash_table_destroy (acfg->method_to_cfg);
- g_hash_table_destroy (acfg->token_info_hash);
- g_hash_table_destroy (acfg->image_hash);
- mono_mempool_destroy (acfg->mempool);
- g_free (acfg);
-}
-
-int
-mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
-{
- MonoImage *image = ass->image;
- char symbol [256];
- int i, res, methods_len;
- MonoAotCompile *acfg;
- TV_DECLARE (atv);
- TV_DECLARE (btv);
-
- printf ("Mono Ahead of Time compiler - compiling assembly %s\n", image->name);
-
- acfg = g_new0 (MonoAotCompile, 1);
- acfg->methods = g_ptr_array_new ();
- acfg->method_indexes = g_hash_table_new (NULL, NULL);
- acfg->plt_offset_to_patch = g_hash_table_new (NULL, NULL);
- acfg->patch_to_plt_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
- acfg->patch_to_shared_got_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
- acfg->shared_patches = g_ptr_array_new ();
- acfg->method_to_cfg = g_hash_table_new (NULL, NULL);
- acfg->token_info_hash = g_hash_table_new_full (NULL, NULL, NULL, g_free);
- acfg->image_hash = g_hash_table_new (NULL, NULL);
- acfg->image_table = g_ptr_array_new ();
- acfg->globals = g_ptr_array_new ();
- acfg->image = image;
- acfg->opts = opts;
- acfg->mempool = mono_mempool_new ();
- acfg->extra_methods = g_ptr_array_new ();
- InitializeCriticalSection (&acfg->mutex);
-
- memset (&acfg->aot_opts, 0, sizeof (acfg->aot_opts));
- acfg->aot_opts.write_symbols = TRUE;
-
- mono_aot_parse_options (aot_options, &acfg->aot_opts);
-
-#ifdef USE_BIN_WRITER
- if (!acfg->aot_opts.asm_only && !acfg->aot_opts.asm_writer)
- acfg->use_bin_writer = TRUE;
-#endif
-
- load_profile_files (acfg);
-
- emit_start (acfg);
-
- acfg->num_aot_trampolines = acfg->aot_opts.full_aot ? 10240 : 0;
-
- acfg->method_index = 1;
+collect_methods (MonoAotCompile *acfg)
+{
+ int i;
+ MonoImage *image = acfg->image;
/* Collect methods */
for (i = 0; i < image->tables [MONO_TABLE_METHOD].rows; ++i) {
method = mono_get_method (acfg->image, token, NULL);
+ if (!method) {
+ printf ("Failed to load method 0x%x from '%s'.\n", token, image->name);
+ exit (1);
+ }
+
/* Load all methods eagerly to skip the slower lazy loading code */
mono_class_setup_methods (method->klass);
if (acfg->aot_opts.full_aot)
add_wrappers (acfg);
+}
- acfg->cfgs_size = acfg->methods->len + 32;
- acfg->cfgs = g_new0 (MonoCompile*, acfg->cfgs_size);
-
- /* PLT offset 0 is reserved for the PLT trampoline */
- acfg->plt_offset = 1;
-
- /* Compile methods */
- TV_GETTIME (atv);
+static void
+compile_methods (MonoAotCompile *acfg)
+{
+ int i, methods_len;
if (acfg->aot_opts.nthreads > 0) {
GPtrArray *frag;
user_data [1] = acfg;
user_data [2] = frag;
- handle = CreateThread (NULL, 0, (gpointer)compile_thread_main, user_data, 0, NULL);
+ handle = mono_create_thread (NULL, 0, (gpointer)compile_thread_main, user_data, 0, NULL);
g_ptr_array_add (threads, handle);
}
g_free (methods);
/* This can new methods to acfg->methods */
compile_method (acfg, g_ptr_array_index (acfg->methods, i));
}
+}
+
+static int
+compile_asm (MonoAotCompile *acfg)
+{
+ char *command, *objfile;
+ char *outfile_name, *tmp_outfile_name;
+
+#if defined(TARGET_AMD64)
+#define AS_OPTIONS "--64"
+#elif defined(sparc) && SIZEOF_VOID_P == 8
+#define AS_OPTIONS "-xarch=v9"
+#else
+#define AS_OPTIONS ""
+#endif
+
+ if (acfg->aot_opts.asm_only) {
+ printf ("Output file: '%s'.\n", acfg->tmpfname);
+ if (acfg->aot_opts.static_link)
+ printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
+ return 0;
+ }
+
+ if (acfg->aot_opts.static_link) {
+ if (acfg->aot_opts.outfile)
+ objfile = g_strdup_printf ("%s", acfg->aot_opts.outfile);
+ else
+ objfile = g_strdup_printf ("%s.o", acfg->image->name);
+ } else {
+ objfile = g_strdup_printf ("%s.o", acfg->tmpfname);
+ }
+ command = g_strdup_printf ("as %s %s -o %s", AS_OPTIONS, acfg->tmpfname, objfile);
+ printf ("Executing the native assembler: %s\n", command);
+ if (system (command) != 0) {
+ g_free (command);
+ g_free (objfile);
+ return 1;
+ }
+
+ g_free (command);
+
+ if (acfg->aot_opts.static_link) {
+ printf ("Output file: '%s'.\n", objfile);
+ printf ("Linking symbol: '%s'.\n", acfg->static_linking_symbol);
+ g_free (objfile);
+ return 0;
+ }
+
+ if (acfg->aot_opts.outfile)
+ outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
+ else
+ outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
+
+ tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
+
+#if defined(sparc)
+ command = g_strdup_printf ("ld -shared -G -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
+#elif defined(__ppc__) && defined(__MACH__)
+ command = g_strdup_printf ("gcc -dynamiclib -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
+#elif defined(PLATFORM_WIN32)
+ command = g_strdup_printf ("gcc -shared --dll -mno-cygwin -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
+#else
+ command = g_strdup_printf ("ld -shared -o %s %s.o", tmp_outfile_name, acfg->tmpfname);
+#endif
+ printf ("Executing the native linker: %s\n", command);
+ if (system (command) != 0) {
+ g_free (tmp_outfile_name);
+ g_free (outfile_name);
+ g_free (command);
+ g_free (objfile);
+ return 1;
+ }
+
+ g_free (command);
+ unlink (objfile);
+ /*com = g_strdup_printf ("strip --strip-unneeded %s%s", acfg->image->name, SHARED_EXT);
+ printf ("Stripping the binary: %s\n", com);
+ system (com);
+ g_free (com);*/
+
+#if defined(TARGET_ARM) && !defined(__MACH__)
+ /*
+ * gas generates 'mapping symbols' each time code and data is mixed, which
+ * happens a lot in emit_and_reloc_code (), so we need to get rid of them.
+ */
+ command = g_strdup_printf ("strip --strip-symbol=\\$a --strip-symbol=\\$d %s", tmp_outfile_name);
+ printf ("Stripping the binary: %s\n", command);
+ if (system (command) != 0) {
+ g_free (tmp_outfile_name);
+ g_free (outfile_name);
+ g_free (command);
+ g_free (objfile);
+ return 1;
+ }
+#endif
+
+ rename (tmp_outfile_name, outfile_name);
+
+ g_free (tmp_outfile_name);
+ g_free (outfile_name);
+ g_free (objfile);
+
+ if (acfg->aot_opts.save_temps)
+ printf ("Retained input file.\n");
+ else
+ unlink (acfg->tmpfname);
+
+ return 0;
+}
+
+static MonoAotCompile*
+acfg_create (MonoAssembly *ass, guint32 opts)
+{
+ MonoImage *image = ass->image;
+ MonoAotCompile *acfg;
+
+ acfg = g_new0 (MonoAotCompile, 1);
+ acfg->methods = g_ptr_array_new ();
+ acfg->method_indexes = g_hash_table_new (NULL, NULL);
+ acfg->plt_offset_to_patch = g_hash_table_new (NULL, NULL);
+ acfg->patch_to_plt_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
+ acfg->patch_to_shared_got_offset = g_hash_table_new (mono_patch_info_hash, mono_patch_info_equal);
+ acfg->shared_patches = g_ptr_array_new ();
+ acfg->method_to_cfg = g_hash_table_new (NULL, NULL);
+ acfg->token_info_hash = g_hash_table_new_full (NULL, NULL, NULL, g_free);
+ acfg->image_hash = g_hash_table_new (NULL, NULL);
+ acfg->image_table = g_ptr_array_new ();
+ acfg->globals = g_ptr_array_new ();
+ acfg->image = image;
+ acfg->opts = opts;
+ acfg->mempool = mono_mempool_new ();
+ acfg->extra_methods = g_ptr_array_new ();
+ acfg->unwind_info_offsets = g_hash_table_new (NULL, NULL);
+ acfg->unwind_ops = g_ptr_array_new ();
+ InitializeCriticalSection (&acfg->mutex);
+
+ return acfg;
+}
+
+static void
+acfg_free (MonoAotCompile *acfg)
+{
+ int i;
+
+ img_writer_destroy (acfg->w);
+ for (i = 0; i < acfg->nmethods; ++i)
+ if (acfg->cfgs [i])
+ g_free (acfg->cfgs [i]);
+ g_free (acfg->cfgs);
+ g_free (acfg->static_linking_symbol);
+ g_ptr_array_free (acfg->methods, TRUE);
+ g_ptr_array_free (acfg->shared_patches, TRUE);
+ g_ptr_array_free (acfg->image_table, TRUE);
+ g_ptr_array_free (acfg->globals, TRUE);
+ g_ptr_array_free (acfg->unwind_ops, TRUE);
+ g_hash_table_destroy (acfg->method_indexes);
+ g_hash_table_destroy (acfg->plt_offset_to_patch);
+ g_hash_table_destroy (acfg->patch_to_plt_offset);
+ g_hash_table_destroy (acfg->patch_to_shared_got_offset);
+ g_hash_table_destroy (acfg->method_to_cfg);
+ g_hash_table_destroy (acfg->token_info_hash);
+ g_hash_table_destroy (acfg->image_hash);
+ g_hash_table_destroy (acfg->unwind_info_offsets);
+ mono_mempool_destroy (acfg->mempool);
+ g_free (acfg);
+}
+
+int
+mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
+{
+ MonoImage *image = ass->image;
+ int res;
+ MonoAotCompile *acfg;
+ char *outfile_name, *tmp_outfile_name;
+ TV_DECLARE (atv);
+ TV_DECLARE (btv);
+
+ printf ("Mono Ahead of Time compiler - compiling assembly %s\n", image->name);
+
+ acfg = acfg_create (ass, opts);
+
+ memset (&acfg->aot_opts, 0, sizeof (acfg->aot_opts));
+ acfg->aot_opts.write_symbols = TRUE;
+ acfg->aot_opts.ntrampolines = 10240;
+
+ mono_aot_parse_options (aot_options, &acfg->aot_opts);
+
+ //acfg->aot_opts.print_skipped_methods = TRUE;
+
+#ifndef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES
+ if (acfg->aot_opts.full_aot) {
+ printf ("--aot=full is not supported on this platform.\n");
+ return 1;
+ }
+#endif
+
+ if (acfg->aot_opts.static_link)
+ acfg->aot_opts.asm_writer = TRUE;
+
+ if (!acfg->aot_opts.asm_only && !acfg->aot_opts.asm_writer && bin_writer_supported ()) {
+ if (acfg->aot_opts.outfile)
+ outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
+ else
+ outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
+
+ tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
+
+ acfg->fp = fopen (tmp_outfile_name, "w");
+ g_assert (acfg->fp);
+
+ acfg->w = img_writer_create (acfg->fp, TRUE);
+ acfg->use_bin_writer = TRUE;
+ } else {
+ if (acfg->aot_opts.asm_only) {
+ if (acfg->aot_opts.outfile)
+ acfg->tmpfname = g_strdup_printf ("%s", acfg->aot_opts.outfile);
+ else
+ acfg->tmpfname = g_strdup_printf ("%s.s", acfg->image->name);
+ acfg->fp = fopen (acfg->tmpfname, "w+");
+ } else {
+ int i = g_file_open_tmp ("mono_aot_XXXXXX", &acfg->tmpfname, NULL);
+ acfg->fp = fdopen (i, "w+");
+ }
+ g_assert (acfg->fp);
+
+ acfg->w = img_writer_create (acfg->fp, FALSE);
+
+ tmp_outfile_name = NULL;
+ outfile_name = NULL;
+ }
+
+ load_profile_files (acfg);
+
+ if (!acfg->aot_opts.nodebug)
+ acfg->dwarf = mono_dwarf_writer_create (acfg->w, NULL);
+
+ acfg->num_trampolines [MONO_AOT_TRAMP_SPECIFIC] = acfg->aot_opts.full_aot ? acfg->aot_opts.ntrampolines : 0;
+#ifdef MONO_ARCH_HAVE_STATIC_RGCTX_TRAMPOLINE
+ acfg->num_trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = acfg->aot_opts.full_aot ? 1024 : 0;
+#endif
+ acfg->num_trampolines [MONO_AOT_TRAMP_IMT_THUNK] = acfg->aot_opts.full_aot ? 128 : 0;
+
+ acfg->method_index = 1;
+
+ collect_methods (acfg);
+
+ acfg->cfgs_size = acfg->methods->len + 32;
+ acfg->cfgs = g_new0 (MonoCompile*, acfg->cfgs_size);
+
+ /* PLT offset 0 is reserved for the PLT trampoline */
+ acfg->plt_offset = 1;
+
+ TV_GETTIME (atv);
+
+ compile_methods (acfg);
TV_GETTIME (btv);
-
+
acfg->stats.jit_time = TV_ELAPSED (atv, btv);
TV_GETTIME (atv);
alloc_got_slots (acfg);
+ img_writer_emit_start (acfg->w);
+
+ if (acfg->dwarf)
+ mono_dwarf_writer_emit_base_info (acfg->dwarf, arch_get_cie_program ());
+
emit_code (acfg);
emit_info (acfg);
emit_exception_info (acfg);
+ emit_unwind_info (acfg);
+
emit_class_info (acfg);
emit_plt (acfg);
emit_globals (acfg);
- emit_dwarf_info (acfg);
+ if (acfg->dwarf)
+ emit_dwarf_info (acfg);
- sprintf (symbol, "mem_end");
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
+ emit_mem_end (acfg);
TV_GETTIME (btv);
acfg->stats.gen_time = TV_ELAPSED (atv, btv);
- printf ("Code: %d Info: %d Ex Info: %d Class Info: %d PLT: %d GOT Info: %d GOT Info Offsets: %d GOT: %d\n", acfg->stats.code_size, acfg->stats.info_size, acfg->stats.ex_info_size, acfg->stats.class_info_size, acfg->plt_offset, acfg->stats.got_info_size, acfg->stats.got_info_offsets_size, (int)(acfg->got_offset * sizeof (gpointer)));
+ printf ("Code: %d Info: %d Ex Info: %d Unwind Info: %d Class Info: %d PLT: %d GOT Info: %d GOT Info Offsets: %d GOT: %d\n", acfg->stats.code_size, acfg->stats.info_size, acfg->stats.ex_info_size, acfg->stats.unwind_info_size, acfg->stats.class_info_size, acfg->plt_offset, acfg->stats.got_info_size, acfg->stats.got_info_offsets_size, (int)(acfg->got_offset * sizeof (gpointer)));
TV_GETTIME (atv);
- res = emit_writeout (acfg);
+ res = img_writer_emit_writeout (acfg->w);
if (res != 0) {
acfg_free (acfg);
return res;
}
+ if (acfg->use_bin_writer) {
+ rename (tmp_outfile_name, outfile_name);
+ } else {
+ res = compile_asm (acfg);
+ if (res != 0) {
+ acfg_free (acfg);
+ return res;
+ }
+ }
TV_GETTIME (btv);
acfg->stats.link_time = TV_ELAPSED (atv, btv);
printf ("%d methods have other problems (%d%%)\n", acfg->stats.ocount, acfg->stats.mcount ? (acfg->stats.ocount * 100) / acfg->stats.mcount : 100);
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);
printf ("Direct calls: %d (%d%%)\n", acfg->stats.direct_calls, acfg->stats.all_calls ? (acfg->stats.direct_calls * 100) / acfg->stats.all_calls : 100);
- 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);
+ /*
printf ("GOT slot distribution:\n");
for (i = 0; i < MONO_PATCH_INFO_NONE; ++i)
if (acfg->stats.got_slot_types [i])
printf ("\t%s: %d\n", get_patch_name (i), acfg->stats.got_slot_types [i]);
+ */
+
+ 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);
acfg_free (acfg);
end
*/
-static MonoAotCompile *xdebug_acfg;
+static MonoDwarfWriter *xdebug_writer;
+static FILE *xdebug_fp;
void
mono_xdebug_init (void)
{
- MonoAotCompile *acfg;
-
- acfg = g_new0 (MonoAotCompile, 1);
- acfg->mempool = mono_mempool_new ();
- InitializeCriticalSection (&acfg->mutex);
- acfg->aot_opts.asm_only = TRUE;
- acfg->aot_opts.outfile = g_strdup ("xdb.s");
+ FILE *il_file;
+ MonoImageWriter *w;
unlink ("xdb.s");
+ xdebug_fp = fopen ("xdb.s", "w");
- emit_start (acfg);
+ w = img_writer_create (xdebug_fp, FALSE);
- xdebug_acfg = acfg;
+ img_writer_emit_start (w);
- /* Emit something so the file has a text segment */
- emit_section_change (acfg, ".text", 0);
- emit_string (acfg, "");
+ /* This file will contain the IL code for methods which don't have debug info */
+ il_file = fopen ("xdb.il", "w");
- emit_base_dwarf_info (acfg);
+ xdebug_writer = mono_dwarf_writer_create (w, il_file);
- /* This file will contain the IL code for methods which don't have debug info */
- acfg->il_file = fopen ("xdb.il", "w");
+ /* Emit something so the file has a text segment */
+ img_writer_emit_section_change (w, ".text", 0);
+ img_writer_emit_string (w, "");
+
+ mono_dwarf_writer_emit_base_info (xdebug_writer, arch_get_cie_program ());
}
/*
*
* Emit debugging info for METHOD into an assembly file which can be assembled
* and loaded into gdb to provide debugging info for JITted code.
+ * LOCKING: Acquires the loader lock.
*/
void
mono_save_xdebug_info (MonoCompile *cfg)
{
- MonoAotCompile *acfg;
-
- if (!xdebug_acfg)
+ if (!xdebug_writer)
return;
-
- acfg = xdebug_acfg;
- mono_acfg_lock (acfg);
- emit_method_dwarf_info (acfg, cfg, cfg->jit_info->method, NULL, NULL, cfg->jit_info->code_start, cfg->jit_info->code_size, cfg->args, cfg->locals, cfg->unwind_ops, mono_debug_find_method (cfg->jit_info->method, mono_domain_get ()));
- fflush (acfg->fp);
- mono_acfg_unlock (acfg);
+ mono_loader_lock ();
+ mono_dwarf_writer_emit_method (xdebug_writer, cfg, cfg->jit_info->method, NULL, NULL, cfg->jit_info->code_start, cfg->jit_info->code_size, cfg->args, cfg->locals, cfg->unwind_ops, mono_debug_find_method (cfg->jit_info->method, mono_domain_get ()));
+ fflush (xdebug_fp);
+ mono_loader_unlock ();
}
/*
* mono_save_trampoline_xdebug_info:
*
* Same as mono_save_xdebug_info, but for trampolines.
+ * LOCKING: Acquires the loader lock.
*/
void
mono_save_trampoline_xdebug_info (const char *tramp_name, guint8 *code, guint32 code_size, GSList *unwind_info)
{
- MonoAotCompile *acfg;
-
- if (!xdebug_acfg)
+ if (!xdebug_writer)
return;
- acfg = xdebug_acfg;
-
- mono_acfg_lock (acfg);
- emit_trampoline_dwarf_info (acfg, tramp_name, NULL, NULL, code, code_size, unwind_info);
- fflush (acfg->fp);
- mono_acfg_unlock (acfg);
+ mono_loader_lock ();
+ mono_dwarf_writer_emit_trampoline (xdebug_writer, tramp_name, NULL, NULL, code, code_size, unwind_info);
+ fflush (xdebug_fp);
+ mono_loader_unlock ();
}
#else
projects / mono.git / blobdiff