/*
- * aot.c: mono Ahead of Time compiler
+ * aot-compiler.c: mono Ahead of Time compiler
*
* Author:
* Dietmar Maurer (dietmar@ximian.com)
/* Remaining AOT-only work:
* - reduce the length of the wrapper names.
- * - during loading, collect the names into a hashtable to avoid linear
- * searches.
* - aot IMT tables, so we don't have two kinds of aot code.
* - optimize the trampolines, generate more code in the arch files.
* - make things more consistent with how elf works, for example, use ELF
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#endif
#include <fcntl.h>
+#include <ctype.h>
#include <string.h>
#ifndef PLATFORM_WIN32
-#include <sys/mman.h>
+#include <sys/time.h>
#else
#include <winsock2.h>
#include <windows.h>
#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/threads-types.h>
#include <mono/utils/mono-logger.h>
-#include "mono/utils/mono-compiler.h"
+#include <mono/utils/mono-compiler.h>
+#include <mono/utils/mono-time.h>
+#include <mono/utils/mono-mmap.h>
#include "mini.h"
-#include "version.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 TV_ELAPSED(start,end) (((end) - (start)) / 10)
#ifdef PLATFORM_WIN32
#define SHARED_EXT ".dll"
#define SHARED_EXT ".so"
#endif
-#if defined(sparc) || defined(__ppc__) || 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 full_aot;
gboolean no_dlsym;
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, wrappercount, gcount, ocount, genericcount;
- int code_size, info_size, ex_info_size, got_size, class_info_size, got_info_size, got_info_offsets_size;
+ int ccount, mcount, lmfcount, abscount, gcount, ocount, genericcount;
+ 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;
-/*#define USE_ELF_WRITER 1*/
-
-#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;
-
-#else
-
-/* emit mode */
-enum {
- EMIT_NONE,
- EMIT_BYTE,
- EMIT_WORD,
- EMIT_LONG
-};
-
-#endif
-
typedef struct MonoAotCompile {
MonoImage *image;
GPtrArray *methods;
GHashTable *method_indexes;
MonoCompile **cfgs;
+ int cfgs_size;
GHashTable *patch_to_plt_offset;
GHashTable *plt_offset_to_patch;
GHashTable *patch_to_shared_got_offset;
GHashTable *image_hash;
GHashTable *method_to_cfg;
GHashTable *token_info_hash;
+ GPtrArray *extra_methods;
GPtrArray *image_table;
GPtrArray *globals;
GList *method_order;
- /* Number of trampolines emitted into the AOT file */
- guint32 num_aot_trampolines;
- guint32 got_offset, plt_offset;
+ guint32 *plt_got_info_offsets;
+ guint32 got_offset, plt_offset, plt_got_offset_base;
/* Number of GOT entries reserved for trampolines */
guint32 num_trampoline_got_entries;
- guint32 *method_got_offsets;
+
+ 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;
MonoAotStats stats;
int method_index;
char *static_linking_symbol;
-#ifdef USE_BIN_WRITER
- BinSymbol *symbols;
- BinSection *sections;
- BinSection *cur_section;
- BinReloc *relocations;
- GHashTable *labels;
- int num_relocs;
-#else
+ CRITICAL_SECTION mutex;
+ gboolean use_bin_writer;
+ MonoImageWriter *w;
+ MonoDwarfWriter *dwarf;
FILE *fp;
char *tmpfname;
- int mode; /* emit mode */
- int col_count; /* bytes emitted per .byte line */
-#endif
+ GSList *cie_program;
+ GHashTable *unwind_info_offsets;
+ GPtrArray *unwind_ops;
+ guint32 unwind_info_offset;
} MonoAotCompile;
+#define mono_acfg_lock(acfg) EnterCriticalSection (&((acfg)->mutex))
+#define mono_acfg_unlock(acfg) LeaveCriticalSection (&((acfg)->mutex))
+
#ifdef HAVE_ARRAY_ELEM_INIT
#define MSGSTRFIELD(line) MSGSTRFIELD1(line)
#define MSGSTRFIELD1(line) str##line
#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
+static inline void
+emit_pop_section (MonoAotCompile *acfg)
+{
+ img_writer_emit_pop_section (acfg->w);
+}
-typedef struct _BinLabel BinLabel;
-struct _BinLabel {
- char *name;
- BinSection *section;
- int offset;
-};
+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);
+}
-struct _BinReloc {
- BinReloc *next;
- char *val1;
- char *val2;
- BinSection *val2_section;
- int val2_offset;
- int offset;
- BinSection *section;
- int section_offset;
-};
+static inline void
+emit_label (MonoAotCompile *acfg, const char *name)
+{
+ img_writer_emit_label (acfg->w, name);
+}
-struct _BinSymbol {
- BinSymbol *next;
- char *name;
- BinSection *section;
- int offset;
- gboolean is_function;
- gboolean is_global;
-};
+static inline void
+emit_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
+{
+ img_writer_emit_bytes (acfg->w, buf, size);
+}
-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 inline void
+emit_string (MonoAotCompile *acfg, const char *value)
+{
+ img_writer_emit_string (acfg->w, value);
+}
-static void
-emit_start (MonoAotCompile *acfg)
-{
- acfg->labels = g_hash_table_new (g_str_hash, g_str_equal);
+static inline void
+emit_line (MonoAotCompile *acfg)
+{
+ img_writer_emit_line (acfg->w);
}
-static void
-emit_section_change (MonoAotCompile *acfg, const char *section_name, int subsection_index)
-{
- BinSection *section;
+static inline void
+emit_alignment (MonoAotCompile *acfg, int size)
+{
+ img_writer_emit_alignment (acfg->w, size);
+}
- 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_pointer_unaligned (MonoAotCompile *acfg, const char *target)
+{
+ img_writer_emit_pointer_unaligned (acfg->w, target);
}
-static void
-emit_global_inner (MonoAotCompile *acfg, const char *name, gboolean func)
-{
- BinSymbol *symbol = g_new0 (BinSymbol, 1);
- symbol->name = g_strdup (name);
- symbol->is_function = func;
- symbol->is_global = TRUE;
- 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_pointer (MonoAotCompile *acfg, const char *target)
+{
+ img_writer_emit_pointer (acfg->w, target);
}
-static void
-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_int16 (MonoAotCompile *acfg, int value)
+{
+ img_writer_emit_int16 (acfg->w, value);
}
-static void
-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_int32 (MonoAotCompile *acfg, int value)
+{
+ img_writer_emit_int32 (acfg->w, value);
}
-static void
-emit_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
-{
- 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_symbol_diff (MonoAotCompile *acfg, const char *end, const char* start, int offset)
+{
+ img_writer_emit_symbol_diff (acfg->w, end, start, offset);
}
-static void
-emit_string (MonoAotCompile *acfg, const char *value)
+static inline void
+emit_zero_bytes (MonoAotCompile *acfg, int num)
+{
+ img_writer_emit_zero_bytes (acfg->w, num);
+}
+
+static inline void
+emit_byte (MonoAotCompile *acfg, guint8 val)
+{
+ img_writer_emit_byte (acfg->w, val);
+}
+
+static G_GNUC_UNUSED void
+emit_global_inner (MonoAotCompile *acfg, const char *name, gboolean func)
{
- int size = strlen (value) + 1;
- emit_bytes (acfg, (const guint8*)value, size);
+ img_writer_emit_global (acfg->w, name, func);
}
static void
-emit_line (MonoAotCompile *acfg)
+emit_global (MonoAotCompile *acfg, const char *name, gboolean func)
{
- /* Nothing to do in binary writer */
+ if (acfg->aot_opts.no_dlsym) {
+ g_ptr_array_add (acfg->globals, g_strdup (name));
+ } else {
+ img_writer_emit_global (acfg->w, name, func);
+ }
}
static void
emit_string_symbol (MonoAotCompile *acfg, const char *name, const char *value)
{
- emit_section_change (acfg, ".text", 1);
+ img_writer_emit_section_change (acfg->w, ".text", 1);
emit_global (acfg, name, FALSE);
- emit_label (acfg, name);
- emit_string (acfg, value);
+ img_writer_emit_label (acfg->w, name);
+ img_writer_emit_string (acfg->w, value);
}
-static void
-emit_alignment (MonoAotCompile *acfg, int size)
+static G_GNUC_UNUSED void
+emit_uleb128 (MonoAotCompile *acfg, guint32 value)
{
- int offset = acfg->cur_section->cur_offset;
- int add;
- offset += (size - 1);
- offset &= ~(size - 1);
- add = offset - acfg->cur_section->cur_offset;
- if (add) {
- emit_ensure_buffer (acfg->cur_section, add);
- acfg->cur_section->cur_offset += add;
- }
+ do {
+ guint8 b = value & 0x7f;
+ value >>= 7;
+ if (value != 0) /* more bytes to come */
+ b |= 0x80;
+ emit_byte (acfg, b);
+ } while (value);
}
-static void
-emit_pointer (MonoAotCompile *acfg, const char *target)
+static G_GNUC_UNUSED void
+emit_sleb128 (MonoAotCompile *acfg, gint64 value)
{
- BinReloc *reloc;
-
- if (!target)
- // FIXME:
- g_assert_not_reached ();
- emit_alignment (acfg, sizeof (gpointer));
- 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);
+ gboolean more = 1;
+ gboolean negative = (value < 0);
+ guint32 size = 64;
+ guint8 byte;
+
+ 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);
}
- acfg->cur_section->cur_offset += sizeof (gpointer);
}
-static void
-emit_int16 (MonoAotCompile *acfg, int value)
+static G_GNUC_UNUSED void
+encode_uleb128 (guint32 value, guint8 *buf, guint8 **endbuf)
{
- guint8 *data;
- 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;
+ guint8 *p = buf;
+
+ do {
+ guint8 b = value & 0x7f;
+ value >>= 7;
+ if (value != 0) /* more bytes to come */
+ b |= 0x80;
+ *p ++ = b;
+ } while (value);
+
+ *endbuf = p;
}
-static void
-emit_int32 (MonoAotCompile *acfg, int value)
+static G_GNUC_UNUSED void
+encode_sleb128 (gint32 value, guint8 *buf, guint8 **endbuf)
{
- guint8 *data;
- 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;
+ gboolean more = 1;
+ gboolean negative = (value < 0);
+ guint32 size = 32;
+ guint8 byte;
+ guint8 *p = buf;
+
+ 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;
+ }
+
+ *endbuf = p;
}
+/* ARCHITECTURE SPECIFIC CODE */
+
+#if defined(TARGET_X86) || defined(TARGET_AMD64) || defined(TARGET_ARM)
+#define EMIT_DWARF_INFO 1
+#endif
+
+/*
+ * 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
-emit_symbol_diff (MonoAotCompile *acfg, const char *end, const char* start, int offset)
+arch_emit_direct_call (MonoAotCompile *acfg, const char *target, int *call_size)
{
- BinReloc *reloc;
- reloc = g_new0 (BinReloc, 1);
- reloc->val1 = g_strdup (end);
- if (strcmp (start, ".") == 0) {
- reloc->val2_section = acfg->cur_section;
- reloc->val2_offset = acfg->cur_section->cur_offset;
+#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;
+
+ code = buf;
+ ARM_BL (code, 0);
+
+ img_writer_emit_reloc (acfg->w, R_ARM_CALL, target, -8);
+ emit_bytes (acfg, buf, 4);
} else {
- reloc->val2 = g_strdup (start);
+ img_writer_emit_unset_mode (acfg->w);
+ fprintf (acfg->fp, "bl %s\n", target);
}
- reloc->offset = offset;
- reloc->section = acfg->cur_section;
- reloc->section_offset = acfg->cur_section->cur_offset;
- reloc->next = acfg->relocations;
- acfg->relocations = reloc;
- 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);
- }*/
+ *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
-emit_zero_bytes (MonoAotCompile *acfg, int num)
+arch_emit_got_offset (MonoAotCompile *acfg, guint8 *code, int *code_size)
{
- emit_ensure_buffer (acfg->cur_section, num);
- acfg->cur_section->cur_offset += num;
+ guint32 offset = mono_arch_get_patch_offset (code);
+ emit_bytes (acfg, code, offset);
+ emit_symbol_diff (acfg, "got", ".", offset);
+
+ *code_size = offset + 4;
}
-#ifdef USE_ELF_WRITER
-enum {
- SYM_LOCAL = 0 << 4,
- SYM_GLOBAL = 1 << 4,
- SYM_OBJECT = 1,
- SYM_FUNC = 2,
- SYM_SECTION = 3
-};
+/*
+ * 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
-enum {
- SECT_NULL,
- SECT_HASH,
- SECT_DYNSYM,
- SECT_DYNSTR,
- SECT_REL_DYN,
- SECT_TEXT,
- SECT_DYNAMIC,
- SECT_GOT_PLT,
- SECT_DATA,
- SECT_BSS,
- SECT_SHSTRTAB,
- SECT_SYMTAB,
- SECT_STRTAB,
- SECT_NUM
-};
+ *code_size = mono_arch_get_patch_offset (code) + 4;
+}
-enum {
- DYN_HASH = 4,
- DYN_STRTAB = 5,
- DYN_SYMTAB = 6,
- DYN_STRSZ = 10,
- DYN_SYMENT = 11,
- DYN_REL = 17,
- DYN_RELSZ = 18,
- DYN_RELENT = 19,
- DYN_RELCOUNT = 0x6ffffffa
-};
+#endif
-static const char* section_names [] = {
- "",
- ".hash",
- ".dynsym",
- ".dynstr",
- ".rel.dyn",
- ".text",
- ".dynamic",
- ".got.plt",
- ".data",
- ".bss",
- ".shstrtab",
- ".symtab",
- ".strtab"
-};
+/*
+ * arch_emit_plt_entry:
+ *
+ * Emit code for the PLT entry with index INDEX.
+ */
+static void
+arch_emit_plt_entry (MonoAotCompile *acfg, int index)
+{
+#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]);
+ }
+#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;
-static const guint8 section_type [] = {
- 0, 5, 11, 3, 9, 1,
- 6, 1, 1, 8, 3, 2, 3
-};
+ /* 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
+}
-static const guint8 section_link [] = {
- 0, 2, 3, 0, 2, 0, 3, 0, 0, 0, 0, 12, 0
-};
+/*
+ * 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
+arch_emit_specific_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
+{
+ /*
+ * 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.
+ */
+#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;
-static const guint8 section_esize [] = {
- 0, 4, 16, 0, 8, 0, 8, 4, 0, 0, 0, 16, 0
-};
+ /* 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 const guint8 section_flags [] = {
- 0, 2, 2, 2, 2, 6, 3, 3, 3, 3, 0, 0, 0
-};
+/*
+ * 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)
+{
+#if defined(TARGET_AMD64)
+ guint8 buf [32];
+ guint8 *code;
+ int this_reg;
+
+ 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));
+
+ 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;
-static const guint16 section_align [] = {
- 0, 4, 4, 1, 4, 4096, 4, 4, 8, 8, 1, 4, 1
-};
+ code = buf;
-struct ElfHeader {
- guint8 e_ident [16];
- guint16 e_type;
- guint16 e_machine;
- guint32 e_version;
- gsize e_entry;
- gsize e_phoff;
- gsize e_shoff;
- guint32 e_flags;
- guint16 e_ehsize;
- guint16 e_phentsize;
- guint16 e_phnum;
- guint16 e_shentsize;
- guint16 e_shnum;
- guint16 e_shstrndx;
-};
+ if (MONO_TYPE_ISSTRUCT (mono_method_signature (method)->ret))
+ this_pos = 1;
-struct ElfSectHeader {
- guint32 sh_name;
- guint32 sh_type;
- gsize sh_flags;
- gsize sh_addr;
- gsize sh_offset;
- gsize sh_size;
- guint32 sh_link;
- guint32 sh_info;
- gsize sh_addralign;
- gsize sh_entsize;
-};
+ ARM_ADD_REG_IMM8 (code, this_pos, this_pos, sizeof (MonoObject));
-#if SIZEOF_VOID_P == 4
-
-struct ElfProgHeader {
- guint32 p_type;
- guint32 p_offset;
- guint32 p_vaddr;
- guint32 p_paddr;
- guint32 p_filesz;
- guint32 p_memsz;
- guint32 p_flags;
- guint32 p_align;
-};
+ emit_bytes (acfg, buf, code - buf);
+ /* jump to method */
+ if (acfg->use_bin_writer) {
+ guint8 buf [4];
+ guint8 *code;
-typedef struct {
- guint32 st_name;
- guint32 st_value;
- guint32 st_size;
- guint8 st_info;
- guint8 st_other;
- guint16 st_shndx;
-} ElfSymbol;
-
-typedef struct {
- guint32 addr;
- guint32 value;
-} ElfReloc;
-
-typedef struct {
- guint32 d_tag;
- guint32 d_val;
-} ElfDynamic;
+ code = buf;
+ ARM_B (code, 0);
+ 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);
+ }
#else
-
-struct ElfProgHeader {
- guint32 p_type;
- guint32 p_flags;
- guint64 p_offset;
- guint64 p_vaddr;
- guint64 p_paddr;
- guint64 p_filesz;
- guint64 p_memsz;
- guint64 p_align;
-};
-
-typedef struct {
- guint32 st_name;
- guint8 st_info;
- guint8 st_other;
- guint16 st_shndx;
- guint64 st_value;
- guint64 st_size;
-} ElfSymbol;
-
-typedef struct {
- guint64 addr;
- guint64 value;
-} ElfReloc;
-
-typedef struct {
- guint64 addr;
- guint64 value;
- guint64 addend;
-} ElfRelocA;
-
-typedef struct {
- guint64 d_tag;
- guint64 d_val;
-} ElfDynamic;
-
+ g_assert_not_reached ();
#endif
-
-typedef struct {
- GString *data;
- GHashTable *hash;
-} ElfStrTable;
-
-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);
- }
- 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;
}
+/*
+ * 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
-append_subsection (MonoAotCompile *acfg, struct ElfSectHeader *sheaders, BinSection *sect, BinSection *add)
+arch_emit_static_rgctx_trampoline (MonoAotCompile *acfg, int offset, int *tramp_size)
{
- 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);
- 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;
-
- 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, sheaders [sect->shidx].sh_addralign);
- add->data = NULL;
- add->data_len = 0;
-}
+#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;
-/* merge the subsections */
-static int
-collect_sections (MonoAotCompile *acfg, struct 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);
- if (strcmp (sect->name, ".text") == 0) {
- sect->shidx = SECT_TEXT;
- } else if (strcmp (sect->name, ".data") == 0) {
- sect->shidx = SECT_DATA;
- } else if (strcmp (sect->name, ".bss") == 0) {
- sect->shidx = SECT_BSS;
- }
- }
- 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;
-}
+ /* 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
+}
-static unsigned long
-elf_hash (const unsigned char *name)
+/*
+ * 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)
{
- unsigned long h = 0, g;
- while (*name) {
- h = (h << 4) + *name++;
- if ((g = h & 0xf0000000))
- h ^= g >> 24;
- h &= ~g;
- }
- return h;
-}
+#if defined(TARGET_AMD64)
+ guint8 *buf, *code;
+ guint8 *labels [3];
-#define NUM_BUCKETS 17
+ code = buf = g_malloc (256);
-static int*
-build_hash (MonoAotCompile *acfg, int num_sections, ElfStrTable *dynstr)
-{
- int *data;
- int num_symbols = 1 + num_sections + 3;
- BinSymbol *symbol;
+ /* FIXME: Optimize this, i.e. use binary search etc. */
+ /* Maybe move the body into a separate function (slower, but much smaller) */
- 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);*/
- }
- str_table_add (dynstr, "__bss_start");
- str_table_add (dynstr, "_edata");
- str_table_add (dynstr, "_end");
+ /* R10 is a free register */
- data = g_new0 (int, num_symbols + 2 + NUM_BUCKETS);
- data [0] = NUM_BUCKETS;
- data [1] = num_symbols;
+ 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);
- return data;
-}
+ /* 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);
-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);
- section = lab->section;
- offset = lab->offset;
- if (section->parent) {
- value = section->parent->file_offset + section->cur_offset + offset;
- } else {
- value = section->file_offset + offset;
- }
- return value;
-}
+ /* Loop footer */
+ amd64_alu_reg_imm (code, X86_ADD, AMD64_R10, 2 * sizeof (gpointer));
+ amd64_jump_code (code, labels [0]);
-static ElfSymbol*
-collect_syms (MonoAotCompile *acfg, int *hash, ElfStrTable *strtab, struct ElfSectHeader *sheaders, int *num_syms)
-{
- ElfSymbol *symbols;
- BinSymbol *symbol;
- BinSection *section;
- int i;
- int *bucket;
- int *chain;
- unsigned long hashc;
+ /* 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);
- if (hash)
- symbols = g_new0 (ElfSymbol, hash [1]);
- else
- symbols = g_new0 (ElfSymbol, *num_syms + SECT_NUM + 10); /* FIXME */
+ /* No match */
+ /* FIXME: */
+ mono_amd64_patch (labels [1], code);
+ x86_breakpoint (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 = SYM_LOCAL | SYM_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 = SYM_LOCAL | SYM_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->file_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->file_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->file_offset;
- }
- ++i;
- }
- }
- for (symbol = acfg->symbols; symbol; symbol = symbol->next) {
- int offset;
- BinLabel *lab;
- if (!symbol->is_global)
- continue;
- symbols [i].st_info = (symbol->is_function? SYM_FUNC : SYM_OBJECT) | SYM_GLOBAL;
- 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->file_offset + section->cur_offset + offset;
- } else {
- symbols [i].st_value = section->file_offset + offset;
- }
- ++i;
- }
- /* add special symbols */
- symbols [i].st_name = str_table_add (strtab, "__bss_start");
- symbols [i].st_shndx = 0xfff1;
- symbols [i].st_info = SYM_GLOBAL;
- ++i;
- symbols [i].st_name = str_table_add (strtab, "_edata");
- symbols [i].st_shndx = 0xfff1;
- symbols [i].st_info = SYM_GLOBAL;
- ++i;
- symbols [i].st_name = str_table_add (strtab, "_end");
- symbols [i].st_shndx = 0xfff1;
- symbols [i].st_info = SYM_GLOBAL;
- ++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;
- }
- }
- }
- return symbols;
-}
-
-static void
-reloc_symbols (MonoAotCompile *acfg, ElfSymbol *symbols, struct ElfSectHeader *sheaders, ElfStrTable *strtab, gboolean dynamic)
-{
- BinSection *section;
- BinSymbol *symbol;
- int i;
-
- 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;
-}
-
-static ElfReloc*
-resolve_relocations (MonoAotCompile *acfg)
-{
- 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) {
- 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->file_offset + reloc->val2_section->cur_offset;
- else
- start_val += reloc->val2_section->file_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->file_offset;
- vaddr += reloc->section->cur_offset;
- vaddr += reloc->section_offset;
- } else {
- data = reloc->section->data;
- data += reloc->section_offset;
- vaddr = reloc->section->file_offset;
- vaddr += reloc->section_offset;
- }
- /* FIXME: little endian */
- data [0] = end_val;
- data [1] = end_val >> 8;
- data [2] = end_val >> 16;
- data [3] = end_val >> 24;
- if (start_val == 0) {
- rr [i].addr = vaddr;
- rr [i].value = 8; /* FIXME: 386_RELATIVE */
- ++i;
- g_assert (i <= acfg->num_relocs);
- }
- }
- return rr;
-}
-
-static int
-emit_writeout (MonoAotCompile *acfg)
-{
- char *outfile_name, *tmp_outfile_name;
- FILE *file;
- struct ElfHeader header;
- struct ElfProgHeader progh [3];
- struct ElfSectHeader secth [SECT_NUM];
- ElfReloc *relocs;
- ElfStrTable str_table = {NULL, NULL};
- ElfStrTable sh_str_table = {NULL, NULL};
- ElfStrTable dyn_str_table = {NULL, NULL};
- BinSection* sections [6];
- BinSection *text_section = NULL, *data_section = NULL, *bss_section = NULL;
- ElfSymbol *dynsym;
- ElfSymbol *symtab;
- ElfDynamic dynamic [14];
- int *hash;
- int i, num_sections, file_offset, virt_offset, size, num_symtab;
- int num_local_syms;
-
- 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);
-
- 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_names [i]);
- secth [i].sh_type = section_type [i];
- secth [i].sh_link = section_link [i];
- secth [i].sh_addralign = section_align [i];
- secth [i].sh_flags = section_flags [i];
- secth [i].sh_entsize = section_esize [i];
- }
- secth [SECT_DYNSYM].sh_info = 4;
- secth [SECT_SYMTAB].sh_info = 20;
-
- num_sections = collect_sections (acfg, secth, sections, 6);
- 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], dyn_str_table.data->len);
- for (i = 0; i < num_sections; ++i) {
- g_print ("section %s, size: %d, %x\n", sections [i]->name, sections [i]->cur_offset, sections [i]->cur_offset);
- }
-
- /* 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);
-
- for (i = 0; i < num_sections; ++i) {
- if (sections [i]->shidx == SECT_TEXT) {
- text_section = sections [i];
- } else if (sections [i]->shidx == SECT_DATA) {
- data_section = sections [i];
- } else if (sections [i]->shidx == SECT_BSS) {
- bss_section = sections [i];
- }
- }
-
- 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;
- size = sizeof (ElfReloc) * acfg->num_relocs;
- secth [SECT_REL_DYN].sh_size = size;
- virt_offset = (file_offset += size);
- secth [SECT_REL_DYN].sh_size = size;
- file_offset += 4096-1;
- file_offset &= ~(4096-1);
- virt_offset = file_offset;
- secth [SECT_TEXT].sh_addr = secth [SECT_TEXT].sh_offset = file_offset;
- size = text_section->cur_offset;
- secth [SECT_TEXT].sh_size = size;
- file_offset += size;
- file_offset += 4-1;
- file_offset &= ~(4-1);
- virt_offset = file_offset;
- /* .dynamic, .got.plt, .data, .bss here */
- secth [SECT_DYNAMIC].sh_addr = virt_offset;
- secth [SECT_DYNAMIC].sh_offset = file_offset;
- size = sizeof (dynamic);
- secth [SECT_DYNAMIC].sh_size = size;
- size += 4-1;
- size &= ~(4-1);
- file_offset += size;
- virt_offset += size;
- 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;
- size += 8-1;
- size &= ~(8-1);
- file_offset += size;
- virt_offset += size;
- secth [SECT_DATA].sh_addr = virt_offset;
- secth [SECT_DATA].sh_offset = file_offset;
- size = data_section->cur_offset;
- secth [SECT_DATA].sh_size = size;
- size += 8-1;
- size &= ~(8-1);
- file_offset += size;
- virt_offset += size;
- secth [SECT_BSS].sh_addr = virt_offset;
- secth [SECT_BSS].sh_offset = file_offset;
- size = bss_section->cur_offset;
- secth [SECT_BSS].sh_size = size;
-
- /* virtual doesn't matter anymore */
- secth [SECT_SHSTRTAB].sh_offset = file_offset;
- size = sh_str_table.data->len;
- secth [SECT_SHSTRTAB].sh_size = size;
- size += 4-1;
- size &= ~(4-1);
- file_offset += size;
- secth [SECT_SYMTAB].sh_offset = file_offset;
- size = sizeof (ElfSymbol) * num_local_syms;
- secth [SECT_SYMTAB].sh_size = size;
- file_offset += size;
- 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);
-
- text_section->file_offset = secth [SECT_TEXT].sh_offset;
- data_section->file_offset = secth [SECT_DATA].sh_offset;
- bss_section->file_offset = secth [SECT_BSS].sh_offset;
-
- header.e_ident [0] = 0x7f; header.e_ident [1] = 'E';
- header.e_ident [2] = 'L'; header.e_ident [3] = 'F';
- header.e_ident [4] = SIZEOF_VOID_P == 4? 1: 2;
- header.e_ident [5] = 1; /* FIXME: little endian, bigendian is 2 */
- header.e_ident [6] = 1; /* version */
- header.e_ident [7] = 0; /* FIXME: */
- header.e_ident [8] = 0; /* FIXME: */
- for (i = 9; i < 16; ++i)
- header.e_ident [i] = 0;
-
- header.e_type = 3; /* shared library */
- header.e_machine = 3; /* FIXME: 386 */
- header.e_version = 1; /* FIXME: */
-
- header.e_phoff = sizeof (header);
- header.e_ehsize = sizeof (header);
- header.e_phentsize = sizeof (struct ElfProgHeader);
- header.e_phnum = 3;
- header.e_entry = secth [SECT_TEXT].sh_addr;
- header.e_shstrndx = 10;
- header.e_shentsize = sizeof (struct ElfSectHeader);
- header.e_shnum = SECT_NUM;
- header.e_shoff = file_offset;
-
- /* dynamic data */
- i = 0;
- dynamic [i].d_tag = DYN_HASH;
- dynamic [i].d_val = secth [SECT_HASH].sh_offset;
- ++i;
- dynamic [i].d_tag = DYN_STRTAB;
- dynamic [i].d_val = secth [SECT_DYNSTR].sh_offset;
- ++i;
- dynamic [i].d_tag = DYN_SYMTAB;
- dynamic [i].d_val = secth [SECT_DYNSYM].sh_offset;
- ++i;
- dynamic [i].d_tag = DYN_STRSZ;
- dynamic [i].d_val = dyn_str_table.data->len;
- ++i;
- dynamic [i].d_tag = DYN_SYMENT;
- dynamic [i].d_val = sizeof (ElfSymbol);
- ++i;
- dynamic [i].d_tag = DYN_REL;
- dynamic [i].d_val = secth [SECT_REL_DYN].sh_offset;
- ++i;
- dynamic [i].d_tag = DYN_RELSZ;
- dynamic [i].d_val = secth [SECT_REL_DYN].sh_size;
- ++i;
- dynamic [i].d_tag = DYN_RELENT;
- dynamic [i].d_val = sizeof (ElfReloc);
- ++i;
- dynamic [i].d_tag = DYN_RELCOUNT;
- dynamic [i].d_val = acfg->num_relocs;
- ++i;
-
- /* Program header */
- memset (&progh, 0, sizeof (progh));
- progh [0].p_type = 1; /* 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 = 1;
- 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 = 2; /* 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 = 4;
- progh [2].p_flags = 6;
-
- 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);
-
- fseek (file, secth [SECT_TEXT].sh_offset, SEEK_SET);
- /* write .text, .data, .bss sections */
- fwrite (text_section->data, text_section->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);
- fseek (file, secth [SECT_DATA].sh_offset, SEEK_SET);
- fwrite (data_section->data, data_section->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);
-
- g_free (tmp_outfile_name);
- g_free (outfile_name);
-
- return 0;
-}
-
-#endif /* USE_ELF_WRITER */
-
-#else
-
-static void
-emit_start (MonoAotCompile *acfg)
-{
- int i = g_file_open_tmp ("mono_aot_XXXXXX", &acfg->tmpfname, NULL);
- acfg->fp = fdopen (i, "w+");
- g_assert (acfg->fp);
-}
-
-static void
-emit_unset_mode (MonoAotCompile *acfg)
-{
- if (acfg->mode == EMIT_NONE)
- return;
- fprintf (acfg->fp, "\n");
- acfg->mode = EMIT_NONE;
-}
-
-static void
-emit_section_change (MonoAotCompile *acfg, const char *section_name, int subsection_index)
-{
- emit_unset_mode (acfg);
-#if defined(PLATFORM_WIN32)
- fprintf (acfg->fp, ".section %s\n", section_name);
-#elif defined(__MACH__)
- /* This needs to be made more precise on mach. */
- fprintf (acfg->fp, "%s\n", subsection_index == 0 ? ".text" : ".data");
-#elif defined(sparc) || defined(__arm__)
- /* For solaris as, GNU as should accept the same */
- fprintf (acfg->fp, ".section \"%s\"\n", section_name);
-#else
- fprintf (acfg->fp, "%s %d\n", section_name, subsection_index);
-#endif
-}
-
-static void
-emit_symbol_type (MonoAotCompile *acfg, const char *name, gboolean func)
-{
- const char *stype;
-
- if (func)
- stype = "function";
- else
- stype = "object";
-
- emit_unset_mode (acfg);
-#if defined(__MACH__)
-
-#elif defined(sparc) || defined(__arm__)
- fprintf (acfg->fp, "\t.type %s,#%s\n", name, stype);
-#elif defined(PLATFORM_WIN32)
-
-#elif defined(__x86_64__) || defined(__i386__)
- fprintf (acfg->fp, "\t.type %s,@%s\n", name, stype);
-#else
- fprintf (acfg->fp, "\t.type %s,@%s\n", name, stype);
-#endif
-}
-
-static void
-emit_global_inner (MonoAotCompile *acfg, const char *name, gboolean func)
-{
- 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
-
- emit_symbol_type (acfg, name, func);
-}
-
-static void
-emit_label (MonoAotCompile *acfg, const char *name)
-{
- 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
-
-#if defined(PLATFORM_WIN32)
- /* Emit a normal label too */
- fprintf (acfg->fp, "%s:\n", name);
-#endif
-}
-
-static void
-emit_string (MonoAotCompile *acfg, const char *value)
-{
- emit_unset_mode (acfg);
- fprintf (acfg->fp, "\t%s \"%s\"\n", AS_STRING_DIRECTIVE, value);
-}
-
-static void
-emit_line (MonoAotCompile *acfg)
-{
- emit_unset_mode (acfg);
- fprintf (acfg->fp, "\n");
-}
-
-static void
-emit_string_symbol (MonoAotCompile *acfg, const char *name, const char *value)
-{
- emit_unset_mode (acfg);
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, name, FALSE);
- emit_label (acfg, name);
- emit_string (acfg, value);
-}
-
-static void
-emit_alignment (MonoAotCompile *acfg, int size)
-{
- 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
-}
-
-static void
-emit_pointer (MonoAotCompile *acfg, const char *target)
-{
- emit_unset_mode (acfg);
- 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
-emit_bytes (MonoAotCompile *acfg, const guint8* buf, int size)
-{
- int i;
- if (acfg->mode != EMIT_BYTE) {
- acfg->mode = EMIT_BYTE;
- acfg->col_count = 0;
- }
- for (i = 0; i < size; ++i, ++acfg->col_count) {
- if ((acfg->col_count % 32) == 0)
- fprintf (acfg->fp, "\n\t.byte ");
- else
- fprintf (acfg->fp, ",");
- fprintf (acfg->fp, "0x%x", buf [i]);
- }
-}
-
-static inline void
-emit_int16 (MonoAotCompile *acfg, int value)
-{
- 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);
-}
-
-static inline void
-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);
-}
-
-static void
-emit_symbol_diff (MonoAotCompile *acfg, const char *end, const char* start, int offset)
-{
- 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, ",");
- 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
-emit_zero_bytes (MonoAotCompile *acfg, int num)
-{
- 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
-}
-
-static int
-emit_writeout (MonoAotCompile *acfg)
-{
- char *command, *objfile;
- char *outfile_name, *tmp_outfile_name;
-
- fclose (acfg->fp);
-
-#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
+ /* 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);
- 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", 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);
+ 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 (acfg->aot_opts.no_dlsym) {
- /*
- * Need to link using gcc so our ctor function gets called.
- */
- 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);
- }
+ g_assert_not_reached ();
#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);*/
-
- 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;
-}
-
-#endif /* ASM_WRITER */
-
-static void
-emit_global (MonoAotCompile *acfg, const char *name, gboolean func)
-{
- if (acfg->aot_opts.no_dlsym) {
- g_ptr_array_add (acfg->globals, g_strdup (name));
- } else {
- emit_global_inner (acfg, name, func);
- }
}
-static void
-emit_byte (MonoAotCompile *acfg, guint8 val)
+/*
+ * arch_get_cie_program:
+ *
+ * Get the unwind bytecode for the DWARF CIE.
+ */
+static GSList*
+arch_get_cie_program (void)
{
- emit_bytes (acfg, &val, 1);
+#ifdef TARGET_AMD64
+ GSList *l = NULL;
+
+ 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);
+
+ return l;
+#else
+ return NULL;
+#endif
}
+/* END OF ARCH SPECIFIC CODE */
+
static guint32
mono_get_field_token (MonoClassField *field)
{
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;
+ 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);
- encode_value (param->num, p, &p);
+ encode_value (mono_type_get_generic_param_num (&klass->byval_arg), 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);
+ encode_value (container->is_method, p, &p);
+ if (container->is_method)
+ encode_method_ref (acfg, container->owner.method, p, &p);
else
- encode_klass_ref (acfg, param->owner->owner.klass, p, &p);
+ encode_klass_ref (acfg, container->owner.klass, p, &p);
} else {
/* Array class */
g_assert (klass->rank > 0);
*endbuf = p;
}
+static void
+encode_generic_context (MonoAotCompile *acfg, MonoGenericContext *context, guint8 *buf, guint8 **endbuf)
+{
+ 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);
+ }
+
+ *endbuf = p;
+}
+
#define MAX_IMAGE_INDEX 250
static void
guint32 token = method->token;
MonoJumpInfoToken *ji;
guint8 *p = buf;
+ char *name;
- g_assert (image_index < MAX_IMAGE_INDEX);
+ /*
+ * 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.
+ */
+
+ g_assert (image_index < MONO_AOT_METHODREF_MIN);
+
+ /* 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);
+ /*
+ * Some wrapper methods are shared using their signature, encode their
+ * stringified signature instead.
+ * FIXME: Optimize disk usage
+ */
+ name = NULL;
if (method->wrapper_type) {
- /* Marker */
- encode_value ((253 << 24), p, &p);
+ 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);
+ }
+ }
+
+ 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);
encode_value (method->wrapper_type, p, &p);
}
case MONO_WRAPPER_STELEMREF:
break;
- case MONO_WRAPPER_STATIC_RGCTX_INVOKE: {
+ 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;
m = mono_marshal_method_from_wrapper (method);
g_assert (m);
+ g_assert (m != method);
encode_method_ref (acfg, m, p, &p);
break;
}
g_assert (image_index < MAX_IMAGE_INDEX);
token = ji->token;
- /* Marker */
- encode_value ((255 << 24), p, &p);
+ 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);
- MonoGenericInst *inst;
- int i;
g_assert (method->is_inflated);
declaring = ((MonoMethodInflated*)method)->declaring;
* like Nullable:Box/Unbox, or by generic sharing.
*/
- /* Marker */
- encode_value ((254 << 24), p, &p);
+ encode_value ((MONO_AOT_METHODREF_GINST << 24), p, &p);
/* Encode the klass */
encode_klass_ref (acfg, method->klass, p, &p);
/* Encode the method */
g_assert (mono_metadata_token_table (token) == MONO_TABLE_METHOD);
encode_value (image_index, p, &p);
encode_value (token, p, &p);
-
- /* 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);
- }
+ 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);
- g_assert (ji);
- image_index = get_image_index (acfg, ji->image);
- g_assert (image_index < MAX_IMAGE_INDEX);
- token = ji->token;
+ 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);
+ 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);
+
+ /* 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);
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:
- return TRUE;
- default:
- return FALSE;
- }
-}
-
-/*
- * is_shared_got_patch:
- *
- * 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.
- */
-static inline gboolean
-is_shared_got_patch (MonoJumpInfo *patch_info)
-{
- 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_MONITOR_ENTER:
+ case MONO_PATCH_INFO_MONITOR_EXIT:
return TRUE;
default:
return FALSE;
if (is_plt_patch (patch_info)) {
int idx = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->patch_to_plt_offset, patch_info));
+ 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 (idx) {
res = idx;
} else {
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;
}
}
return index;
}
+static void
+add_extra_method (MonoAotCompile *acfg, MonoMethod *method)
+{
+ int index;
+
+ 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 void
add_jit_icall_wrapper (gpointer key, gpointer value, gpointer user_data)
{
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);
+ return mono_marshal_get_runtime_invoke (m, FALSE);
}
static void
add_wrappers (MonoAotCompile *acfg)
{
MonoMethod *method, *m;
- int i, nallocators;
- MonoMethodSignature *csig;
+ int i, j, nallocators;
+ MonoMethodSignature *sig, *csig;
guint32 token;
/*
csig->params [1] = &mono_defaults.boolean_class->byval_arg;
add_method (acfg, get_runtime_invoke_sig (csig));
+ /* 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));
+
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;
method = mono_get_method (acfg->image, token, NULL);
- add_method (acfg, mono_marshal_get_runtime_invoke (method));
+ if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
+ (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
+ (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
+ skip = TRUE;
+
+ if (method->is_generic || method->klass->generic_container)
+ skip = TRUE;
+
+ /* 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;
+ }
+
+ 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);
/* 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 */
sig = mono_method_signature (method);
- if (sig->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class) &&
- !(method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
+ 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);
}
}
-#if 0
- /* static rgctx wrappers */
- /* FIXME: Each wrapper belongs to a given instantiation of a generic 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);
+
+ if (klass->delegate && klass != mono_defaults.delegate_class && klass != mono_defaults.multicastdelegate_class && !klass->generic_container) {
+ method = mono_get_delegate_invoke (klass);
+
+ m = mono_marshal_get_delegate_invoke (method, NULL);
+
+ 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));
+ }
+ }
+
+ /* 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->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);
+ 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));
+ }
+ }
+}
+
+static gboolean
+has_type_vars (MonoClass *klass)
+{
+ 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;
+
+ 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;
+
+ 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;
+}
+
+/*
+ * add_generic_class:
+ *
+ * Add all methods of a generic class.
+ */
+static void
+add_generic_class (MonoAotCompile *acfg, MonoClass *klass)
+{
+ MonoMethod *method;
+ gpointer iter;
+
+ mono_class_init (klass);
+
+ if (klass->generic_class && klass->generic_class->context.class_inst->is_open)
+ return;
+
+ if (has_type_vars (klass))
+ return;
+
+ if (!klass->generic_class && !klass->rank)
+ return;
+
+ /*
+ * 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));
+
+ 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);
+ }
+
+ /*
+ * 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;
+
+ 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);
+
+ /* Add the T[]/InternalEnumerator class */
+ if (!strcmp (klass->name, "IEnumerable`1") || !strcmp (klass->name, "IEnumerator`1")) {
+ MonoClass *nclass;
+
+ 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);
+ }
+
+ iter = NULL;
+ while ((method = mono_class_get_methods (array_class, &iter))) {
+ if (strstr (method->name, name_prefix))
+ add_extra_method (acfg, method);
+ }
+
+ g_free (name_prefix);
+ }
+}
+
+/*
+ * add_generic_instances:
+ *
+ * Add instances referenced by the METHODSPEC/TYPESPEC table.
+ */
+static void
+add_generic_instances (MonoAotCompile *acfg)
+{
+ int i;
+ guint32 token;
+ MonoMethod *method;
+ MonoMethodHeader *header;
+ MonoMethodSignature *sig;
+ 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);
+
+ 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;
+
+ if (method->klass->image != acfg->image)
+ continue;
+
+ if (mono_method_is_generic_sharable_impl (method, FALSE))
+ /* Already added */
+ continue;
+
+ add_extra_method (acfg, method);
+ }
+
+ for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPESPEC].rows; ++i) {
+ MonoClass *klass;
+
+ token = MONO_TOKEN_TYPE_SPEC | (i + 1);
+
+ klass = mono_class_get (acfg->image, token);
+ if (!klass)
+ continue;
+
+ add_generic_class (acfg, klass);
+ }
+
+ /* Add types of args/locals */
+ for (i = 0; i < acfg->methods->len; ++i) {
+ int j;
+
+ method = g_ptr_array_index (acfg->methods, i);
+
+ sig = mono_method_signature (method);
+
+ 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]));
+ }
+
+ header = mono_method_get_header (method);
+
+ 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]));
}
}
-#endif
}
+/*
+ * 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
emit_and_reloc_code (MonoAotCompile *acfg, MonoMethod *method, guint8 *code, guint32 code_len, MonoJumpInfo *relocs, gboolean got_only)
{
GPtrArray *patches;
MonoJumpInfo *patch_info;
MonoMethodHeader *header;
- gboolean skip;
+ gboolean skip, direct_call;
guint32 got_slot;
+ char direct_call_target [128];
if (method) {
header = mono_method_get_header (method);
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);
-
- i += offset + 4 - 1;
+ int code_size;
+
+ arch_emit_got_offset (acfg, code + i, &code_size);
+ i += code_size - 1;
skip = TRUE;
break;
}
default: {
- char *direct_call_target;
-
- if (!is_got_patch (patch_info->type))
- break;
-
/*
* 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_target = NULL;
+ 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) {
- if (!callee_cfg->has_got_slots && (callee_cfg->method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)) {
- //printf ("DIRECT: %s %s\n", mono_method_full_name (cfg->method, TRUE), mono_method_full_name (callee_cfg->method, TRUE));
- direct_call_target = g_strdup_printf (".Lm_%x", get_method_index (acfg, callee_cfg->orig_method));
+ gboolean direct_callable = TRUE;
+
+ 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 ++;
}
- if (!got_only && !direct_call_target) {
+ 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_target = g_strdup_printf (".Lp_%d", plt_offset);
+ direct_call = TRUE;
+ sprintf (direct_call_target, ".Lp_%d", plt_offset);
/* Nullify the patch */
patch_info->type = MONO_PATCH_INFO_NONE;
}
}
- if (direct_call_target) {
-#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
- /* FIXME: Can't encode this using the current symbol writer functions */
- g_assert_not_reached ();
-#else
- emit_unset_mode (acfg);
- fprintf (acfg->fp, "bl %s\n", direct_call_target);
- i += 4 - 1;
-#endif
-#endif
+ if (direct_call) {
+ int call_size;
- g_free (direct_call_target);
+ arch_emit_direct_call (acfg, direct_call_target, &call_size);
+ i += call_size - 1;
} else {
+ int code_size;
+
got_slot = get_got_offset (acfg, patch_info);
- 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;
+ arch_emit_got_access (acfg, code + i, got_slot, &code_size);
+ i += code_size - 1;
}
skip = TRUE;
}
}
#endif /* MONO_ARCH_AOT_SUPPORTED */
- if (!skip)
- emit_bytes (acfg, code + i, 1);
+ 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;
+ }
+
+ /* 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);
+ }
+ }
}
}
MonoMethod *method;
int method_index;
guint8 *code;
- char *symbol;
+ char symbol [128];
int func_alignment = 16;
MonoMethodHeader *header;
method_index = get_method_index (acfg, method);
/* Make the labels local */
- symbol = g_strdup_printf (".Lm_%x", method_index);
+ sprintf (symbol, ".Lm_%x", method_index);
emit_alignment (acfg, func_alignment);
emit_label (acfg, symbol);
- if (acfg->aot_opts.write_symbols)
- emit_global (acfg, symbol, TRUE);
+
+ 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);
+ }
if (cfg->verbose_level > 0)
g_print ("Method %s emitted as %s\n", mono_method_full_name (method, TRUE), symbol);
- g_free (symbol);
acfg->stats.code_size += cfg->code_len;
- acfg->method_got_offsets [method_index] = acfg->got_offset;
+ acfg->cfgs [method_index]->got_offset = acfg->got_offset;
emit_and_reloc_code (acfg, method, code, cfg->code_len, cfg->patch_info, FALSE);
emit_line (acfg);
+
+ sprintf (symbol, ".Lme_%x", method_index);
+ emit_label (acfg, symbol);
}
/**
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;
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);
encode_patch_list (MonoAotCompile *acfg, GPtrArray *patches, int n_patches, int first_got_offset, guint8 *buf, guint8 **endbuf)
{
guint8 *p = buf;
- guint32 last_offset, j, pindex;
+ guint32 pindex;
MonoJumpInfo *patch_info;
encode_value (n_patches, p, &p);
if (n_patches)
encode_value (first_got_offset, p, &p);
- /* 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;
- 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;
-
- /* Only the type is needed */
- *p = patch_info->type;
- p++;
- }
-
- /* Then encode the other info */
- for (pindex = 0; pindex < patches->len; ++pindex) {
- patch_info = g_ptr_array_index (patches, pindex);
-
- if (is_shared_got_patch (patch_info)) {
+ 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 {
GList *l;
int pindex, buf_size, n_patches;
guint8 *code;
- char *symbol;
+ char symbol [128];
GPtrArray *patches;
MonoJumpInfo *patch_info;
MonoMethodHeader *header;
method_index = get_method_index (acfg, method);
/* Make the labels local */
- symbol = g_strdup_printf (".Lm_%x_p", method_index);
+ sprintf (symbol, ".Lm_%x_p", method_index);
/* Sort relocations */
patches = g_ptr_array_new ();
g_ptr_array_add (patches, patch_info);
g_ptr_array_sort (patches, compare_patches);
- first_got_offset = acfg->method_got_offsets [method_index];
+ first_got_offset = acfg->cfgs [method_index]->got_offset;
/**********************/
/* Encode method info */
/* Emit method info */
emit_label (acfg, symbol);
- g_free (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_exception_debug_info (MonoAotCompile *acfg, MonoCompile *cfg)
{
int k, buf_size, method_index;
guint32 debug_info_size;
guint8 *code;
- char *symbol;
+ char symbol [128];
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 */
- symbol = g_strdup_printf (".Le_%x_p", method_index);
+ sprintf (symbol, ".Le_%x_p", method_index);
- mono_debug_serialize_debug_info (cfg, &debug_info, &debug_info_size);
+ if (!acfg->aot_opts.nodebug) {
+ mono_debug_serialize_debug_info (cfg, &debug_info, &debug_info_size);
+ } else {
+ debug_info = NULL;
+ debug_info_size = 0;
+ }
- buf_size = header->num_clauses * 256 + debug_info_size + 128;
+ buf_size = header->num_clauses * 256 + debug_info_size + 1024;
p = buf = g_malloc (buf_size);
- encode_value (cfg->code_len, p, &p);
- encode_value (cfg->used_int_regs, p, &p);
- encode_value (jinfo->has_generic_jit_info, p, &p);
+#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);
+ }
/* Exception table */
if (header->num_clauses) {
/* Emit info */
emit_label (acfg, symbol);
- g_free (symbol);
g_assert (p - buf < buf_size);
emit_bytes (acfg, buf, p - buf);
MonoClass *klass = mono_class_get (acfg->image, token);
guint8 *p, *buf;
int i, buf_size;
- char *symbol;
+ char symbol [128];
gboolean no_special_static, cant_encode;
gpointer iter = NULL;
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);
+ 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)
acfg->stats.class_info_size += p - buf;
/* Emit the info */
- symbol = g_strdup_printf (".LK_I_%x", token - MONO_TOKEN_TYPE_DEF - 1);
+ sprintf (symbol, ".LK_I_%x", token - MONO_TOKEN_TYPE_DEF - 1);
emit_label (acfg, symbol);
- g_free (symbol);
g_assert (p - buf < buf_size);
emit_bytes (acfg, buf, p - buf);
static void
emit_plt (MonoAotCompile *acfg)
{
- char *symbol;
- int i, buf_size;
- guint8 *p, *buf;
- guint32 *plt_info_offsets;
-
- /*
- * Encode info need to resolve PLT entries.
- */
- buf_size = acfg->plt_offset * 128;
- p = buf = g_malloc (buf_size);
-
- plt_info_offsets = g_new0 (guint32, acfg->plt_offset);
-
- for (i = 1; i < acfg->plt_offset; ++i) {
- MonoJumpInfo *patch_info = g_hash_table_lookup (acfg->plt_offset_to_patch, GUINT_TO_POINTER (i));
-
- plt_info_offsets [i] = p - buf;
- encode_value (patch_info->type, p, &p);
- encode_patch (acfg, patch_info, p, &p);
- }
+ char symbol [128];
+ int i;
emit_line (acfg);
- symbol = g_strdup_printf ("plt");
+ sprintf (symbol, "plt");
- /* This section will be made read-write by the AOT loader */
emit_section_change (acfg, ".text", 0);
emit_global (acfg, symbol, TRUE);
- emit_alignment (acfg, PAGESIZE);
- emit_label (acfg, symbol);
- g_free (symbol);
-
-#if defined(USE_BIN_WRITER) && defined(__arm__)
- /* FIXME: */
- g_assert_not_reached ();
+#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);
for (i = 0; i < acfg->plt_offset; ++i) {
- char *label;
+ char label [128];
- label = g_strdup_printf (".Lp_%d", i);
+ sprintf (label, ".Lp_%d", i);
emit_label (acfg, label);
- g_free (label);
/*
* The first plt entry is used to transfer code to the AOT loader.
*/
-
-#if defined(__i386__)
- if (i == 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, plt_info_offsets [i]);
- }
-#elif defined(__x86_64__)
- /*
- * We can't emit jumps because they are 32 bits only so they can't be patched.
- * So we emit a jump table instead whose entries are patched by the AOT loader to
- * point to .Lpd entries. ELF stores these in the GOT too, but we don't, since
- * methods with GOT entries can't be called directly.
- * We also emit the default PLT code here since the PLT code will not be patched.
- * 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, "plt_jump_table", ".", (i * sizeof (gpointer)) -4);
- /* Used by mono_aot_get_plt_info_offset */
- emit_int32 (acfg, plt_info_offsets [i]);
-#elif defined(__arm__)
- /* FIXME:
- * - optimize OP_AOTCONST implementation
- * - optimize the PLT entries
- * - optimize SWITCH AOT implementation
- * - implement IMT support
- */
- emit_unset_mode (acfg);
- fprintf (acfg->fp, "\tldr ip, [pc, #4]\n");
- fprintf (acfg->fp, "\tadd ip, pc, ip\n");
- fprintf (acfg->fp, "\tldr pc, [ip, #0]\n");
- emit_symbol_diff (acfg, "plt_jump_table", ".", 0);
- /* Used by mono_aot_get_plt_info_offset */
- #if defined(__MACH__)
- fprintf (acfg->fp, "\n\t.long %d\n", plt_info_offsets [i]);
- #else
- fprintf (acfg->fp, "\n\t.word %d\n", plt_info_offsets [i]);
- #endif
-
-#else
- g_assert_not_reached ();
-#endif
+ arch_emit_plt_entry (acfg, i);
}
- g_free (plt_info_offsets);
-
- symbol = g_strdup_printf ("plt_end");
+ sprintf (symbol, "plt_end");
emit_global (acfg, symbol, TRUE);
emit_label (acfg, symbol);
- g_free (symbol);
-
- /* Emit PLT info */
- symbol = g_strdup_printf ("plt_info");
- emit_global (acfg, symbol, FALSE);
- emit_label (acfg, symbol);
- g_free (symbol);
-
- g_assert (p - buf < buf_size);
- emit_bytes (acfg, buf, p - buf);
- g_free (buf);
-
- symbol = g_strdup_printf ("plt_jump_table_addr");
- emit_section_change (acfg, ".data", 0);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
- emit_pointer (acfg, "plt_jump_table");
- g_free (symbol);
-
- symbol = g_strdup_printf ("plt_jump_table_size");
- emit_section_change (acfg, ".data", 0);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
- emit_symbol_diff (acfg, "plt_jump_table_end", "plt_jump_table", 0);
- g_free (symbol);
-
- /* Don't make this a global so accesses don't need relocations */
- symbol = g_strdup_printf ("plt_jump_table");
- emit_section_change (acfg, ".bss", 0);
- emit_label (acfg, symbol);
- g_free (symbol);
-
-#if defined(__x86_64__) || defined(__arm__)
- emit_zero_bytes (acfg, (int)(acfg->plt_offset * sizeof (gpointer)));
-#endif
-
- symbol = g_strdup_printf ("plt_jump_table_end");
- emit_label (acfg, symbol);
- g_free (symbol);
}
static G_GNUC_UNUSED void
-emit_named_code (MonoAotCompile *acfg, const char *name, guint8 *code,
- guint32 code_size, int got_offset, MonoJumpInfo *ji)
+emit_trampoline (MonoAotCompile *acfg, const char *name, guint8 *code,
+ guint32 code_size, int got_offset, MonoJumpInfo *ji, GSList *unwind_ops)
{
- char *symbol;
+ char symbol [256];
guint32 buf_size;
MonoJumpInfo *patch_info;
guint8 *buf, *p;
/* Emit code */
- symbol = g_strdup_printf ("%s", name);
+ sprintf (symbol, "%s", name);
emit_section_change (acfg, ".text", 0);
emit_global (acfg, symbol, TRUE);
emit_alignment (acfg, 16);
emit_label (acfg, symbol);
- g_free (symbol);
+
+ sprintf (symbol, ".Lnamed_%s", name);
+ emit_label (acfg, symbol);
/*
* The code should access everything through the GOT, so we pass
encode_patch_list (acfg, patches, patches->len, got_offset, p, &p);
g_assert (p - buf < buf_size);
- symbol = g_strdup_printf ("%s_p", name);
+ sprintf (symbol, "%s_p", name);
emit_section_change (acfg, ".text", 0);
emit_global (acfg, symbol, FALSE);
emit_label (acfg, symbol);
- g_free (symbol);
emit_bytes (acfg, buf, p - buf);
+
+ /* Emit debug info */
+ if (unwind_ops) {
+ char symbol2 [256];
+
+ sprintf (symbol, "%s", name);
+ sprintf (symbol2, ".Lnamed_%s", name);
+
+ if (acfg->dwarf)
+ mono_dwarf_writer_emit_trampoline (acfg->dwarf, symbol, symbol2, NULL, NULL, code_size, unwind_ops);
+ }
}
-/*
- * 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.
- */
static void
emit_trampolines (MonoAotCompile *acfg)
{
- char *symbol;
- int i, offset;
+ 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;
+ GSList *unwind_ops;
#endif
if (!acfg->aot_opts.full_aot)
* 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);
+ code = mono_arch_create_trampoline_code_full (tramp_type, &code_size, &ji, &unwind_ops, TRUE);
/* Emit trampoline code */
- symbol = g_strdup_printf ("generic_trampoline_%d", tramp_type);
-
- emit_named_code (acfg, symbol, code, code_size, acfg->got_offset, ji);
+ sprintf (symbol, "generic_trampoline_%d", tramp_type);
- g_free (symbol);
+ emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, unwind_ops);
}
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);
+ 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
+
+ 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);
/* 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);
+ 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_named_code (acfg, "call_filter", code, code_size, acfg->got_offset, ji);
+ 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_named_code (acfg, "throw_exception", code, code_size, acfg->got_offset, ji);
+ 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_named_code (acfg, "rethrow_exception", code, code_size, acfg->got_offset, ji);
+ 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_named_code (acfg, "throw_exception_by_name", code, code_size, acfg->got_offset, ji);
+ 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_named_code (acfg, "throw_corlib_exception", code, code_size, acfg->got_offset, ji);
+ emit_trampoline (acfg, "throw_corlib_exception", code, code_size, acfg->got_offset, ji, NULL);
+
+#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
-#ifdef __x86_64__
+#if defined(TARGET_AMD64) || defined(TARGET_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);
- symbol = g_strdup_printf ("rgctx_fetch_trampoline_%u", offset);
- emit_named_code (acfg, symbol, code, code_size, acfg->got_offset, ji);
- g_free (symbol);
+ sprintf (symbol, "rgctx_fetch_trampoline_%u", offset);
+ emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, NULL);
offset = MONO_RGCTX_SLOT_MAKE_MRGCTX (i);
code = mono_arch_create_rgctx_lazy_fetch_trampoline_full (offset, &code_size, &ji, TRUE);
- symbol = g_strdup_printf ("rgctx_fetch_trampoline_%u", offset);
- emit_named_code (acfg, symbol, code, code_size, acfg->got_offset, ji);
- g_free (symbol);
+ sprintf (symbol, "rgctx_fetch_trampoline_%u", offset);
+ emit_trampoline (acfg, symbol, code, code_size, acfg->got_offset, ji, NULL);
}
#endif
+
+#if defined(TARGET_AMD64) || defined(TARGET_ARM)
+ {
+ GSList *l;
+
+ /* 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
+#endif /* #ifdef MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES */
+
+ /* Emit trampolines which are numerous */
+
+ /*
+ * 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.
+ */
+
+ /*
+ * 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.
+ */
+
/*
* 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;
+ emit_section_change (acfg, ".text", 0);
- symbol = g_strdup_printf ("trampolines");
+ tramp_got_offset = acfg->got_offset;
- emit_section_change (acfg, ".text", 0);
- emit_global (acfg, symbol, TRUE);
- emit_alignment (acfg, 16);
- emit_label (acfg, symbol);
+ 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 ();
+ }
- for (i = 0; i < acfg->num_aot_trampolines; ++i) {
- offset = acfg->got_offset + (i * 2);
+ emit_global (acfg, symbol, TRUE);
+ emit_alignment (acfg, 16);
+ emit_label (acfg, symbol);
- /*
- * 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);
+ acfg->trampoline_got_offset_base [ntype] = tramp_got_offset;
+
+ for (i = 0; i < acfg->num_trampolines [ntype]; ++i) {
+ int tramp_size = 0;
+
+ 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 ();
+ }
+
+ if (!acfg->trampoline_size [ntype]) {
+ g_assert (tramp_size);
+ acfg->trampoline_size [ntype] = tramp_size;
+ }
}
-#else
- g_assert_not_reached ();
-#endif
}
+
+ /* Reserve some entries at the end of the GOT for our use */
+ acfg->num_trampoline_got_entries = tramp_got_offset - acfg->got_offset;
}
/* Unbox trampolines */
-
- for (i = 0; i < acfg->image->tables [MONO_TABLE_METHOD].rows; ++i) {
- MonoMethod *method;
- guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
+ for (i = 0; i < acfg->methods->len; ++i) {
+ MonoMethod *method = g_ptr_array_index (acfg->methods, i);
MonoCompile *cfg;
- char *call_target;
-
- method = mono_get_method (acfg->image, token, NULL);
+ char call_target [256];
cfg = g_hash_table_lookup (acfg->method_to_cfg, method);
if (!cfg || !cfg->orig_method->klass->valuetype || !(method->flags & METHOD_ATTRIBUTE_VIRTUAL))
continue;
- symbol = g_strdup_printf ("unbox_trampoline_%d", i);
+ 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));
+ }
emit_section_change (acfg, ".text", 0);
emit_global (acfg, symbol, TRUE);
emit_label (acfg, symbol);
- call_target = g_strdup_printf (".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;
+ sprintf (call_target, ".Lm_%x", get_method_index (acfg, cfg->orig_method));
- 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 ();
-#endif
- fprintf (acfg->fp, "\n\tb %s\n", call_target);
- }
-#else
- g_assert_not_reached ();
-#endif
+ arch_emit_unbox_trampoline (acfg, cfg->orig_method, cfg->generic_sharing_context, call_target);
}
- symbol = g_strdup_printf ("trampolines_info");
-
- emit_section_change (acfg, ".text", 0);
- emit_global (acfg, symbol, TRUE);
- emit_alignment (acfg, PAGESIZE);
- emit_label (acfg, symbol);
-
- emit_int32 (acfg, acfg->num_aot_trampolines);
- emit_int32 (acfg, acfg->got_offset);
+ acfg->got_offset += acfg->num_trampoline_got_entries;
}
static gboolean
{
gchar **args, **ptr;
- memset (opts, 0, sizeof (*opts));
-
args = g_strsplit (aot_options ? aot_options : "", ",", -1);
for (ptr = args; ptr && *ptr; ptr ++) {
const char *arg = *ptr;
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 if (str_begins_with (arg, "nodebug")) {
+ opts->nodebug = TRUE;
+ } else if (str_begins_with (arg, "ntrampolines=")) {
+ opts->ntrampolines = atoi (arg + strlen ("ntrampolines="));
} else {
fprintf (stderr, "AOT : Unknown argument '%s'.\n", arg);
exit (1);
}
}
- g_strfreev (args);
+ 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_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;
+}
+
+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;
+
+ 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;
+
+ if (!can_encode_patch (acfg, entry->data))
+ return FALSE;
+ break;
+ }
+ default:
+ break;
+ }
+
+ return TRUE;
}
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);
-}
+add_generic_class (MonoAotCompile *acfg, MonoClass *klass);
+/*
+ * 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)
{
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) ||
// FIXME: The wrapper should be generic too, but it is not
return;
- acfg->stats.mcount++;
-
- if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) {
- /*
- * FIXME: Enabling this causes virtual-sync.exe to fail, since the trampoline
- * code can't determine that it needs to insert a sync wrapper in the AOT case.
- */
- return;
- }
+ InterlockedIncrement (&acfg->stats.mcount);
#if 0
- if (!(acfg->opts & MONO_OPT_GSHARED)) {
- if (method->is_generic || method->klass->generic_container) {
- acfg->stats.genericcount ++;
- return;
- }
+ if (method->is_generic || method->klass->generic_container) {
+ InterlockedIncrement (&acfg->stats.genericcount);
+ return;
}
#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
cfg = mini_method_compile (method, acfg->opts, mono_get_root_domain (), FALSE, TRUE, 0);
if (cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
//printf ("F: %s\n", mono_method_full_name (method, TRUE));
- acfg->stats.genericcount ++;
+ InterlockedIncrement (&acfg->stats.genericcount);
return;
}
if (cfg->exception_type != MONO_EXCEPTION_NONE) {
}
if (cfg->disable_aot) {
- //printf ("Skip (other): %s\n", mono_method_full_name (method, TRUE));
- acfg->stats.ocount++;
+ 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;
}
}
/* Collect method->token associations from the cfg */
+ mono_acfg_lock (acfg);
g_hash_table_foreach (cfg->token_info_hash, add_token_info_hash, acfg);
+ mono_acfg_unlock (acfg);
/*
* Check for absolute addresses.
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) {
- acfg->stats.abscount++;
+ 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;
}
+ /* Lock for the rest of the code */
+ mono_acfg_lock (acfg);
+
/*
- * Check for wrapper methods we can't encode.
+ * Check for methods/klasses we can't encode.
*/
skip = FALSE;
for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
- if ((patch_info->type == MONO_PATCH_INFO_METHODCONST) || (patch_info->type == MONO_PATCH_INFO_METHOD)) {
- 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:
- break;
- default:
- /* unable to handle this */
- //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));
- skip = TRUE;
- break;
- }
- } else if (patch_info->type == MONO_PATCH_INFO_RGCTX_FETCH) {
- MonoJumpInfo *child = patch_info->data.rgctx_entry->data;
-
- if (child->type == MONO_PATCH_INFO_METHODCONST) {
- switch (child->data.method->wrapper_type) {
- case MONO_WRAPPER_NONE:
- case MONO_WRAPPER_STATIC_RGCTX_INVOKE:
- break;
- default:
- skip = TRUE;
- }
- }
- }
+ if (!can_encode_patch (acfg, patch_info))
+ skip = TRUE;
}
if (skip) {
- acfg->stats.wrappercount++;
+ 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);
return;
}
- /*
- * Check for methods/klasses we can't encode.
- */
- skip = FALSE;
+ /* Adds generic instances referenced by this method */
for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
switch (patch_info->type) {
- case MONO_PATCH_INFO_METHOD:
- case MONO_PATCH_INFO_METHODCONST:
- if (patch_info->data.method->wrapper_type)
- break;
- 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))
- skip = TRUE;
- }
- if (patch_info->data.method->is_inflated && !g_hash_table_lookup (acfg->token_info_hash, patch_info->data.method)) {
- /*
- * encode_method_ref () can handle this method if it is not generic
- * and its class can be encoded.
- */
- if (!g_hash_table_lookup (acfg->token_info_hash, patch_info->data.method->klass) || mono_method_get_context (patch_info->data.method)->method_inst) {
- /* FIXME: Can't encode these */
- //printf ("Skip (can't encode): %s %d -> %s\n", mono_method_full_name (method, TRUE), patch_info->type, mono_method_full_name (patch_info->data.method, TRUE));
- skip = TRUE;
+ case MONO_PATCH_INFO_METHOD: {
+ MonoMethod *m = patch_info->data.method;
+ 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)) {
+ 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;
- 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))
- skip = TRUE;
- break;
+ }
default:
break;
}
}
- if (skip) {
- acfg->stats.ocount++;
- mono_destroy_compile (cfg);
- return;
- }
-
/* Determine whenever the method has GOT slots */
for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
switch (patch_info->type) {
}
if (!cfg->has_got_slots)
- acfg->stats.methods_without_got_slots ++;
+ InterlockedIncrement (&acfg->stats.methods_without_got_slots);
/* Make a copy of the patch info which is in the mempool */
{
}
cfg->patch_info = patches;
}
+ /* Make a copy of the unwind info */
+ {
+ GSList *l, *unwind_ops;
+ MonoUnwindOp *op;
+
+ unwind_ops = NULL;
+ for (l = cfg->unwind_ops; l; l = l->next) {
+ op = mono_mempool_alloc (acfg->mempool, sizeof (MonoUnwindOp));
+ memcpy (op, l->data, sizeof (MonoUnwindOp));
+ unwind_ops = g_slist_prepend_mempool (acfg->mempool, unwind_ops, op);
+ }
+ cfg->unwind_ops = g_slist_reverse (unwind_ops);
+ }
+ /* Make a copy of the argument/local info */
+ {
+ MonoInst **args, **locals;
+ MonoMethodSignature *sig;
+ MonoMethodHeader *header;
+ int i;
+
+ sig = mono_method_signature (method);
+ args = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * (sig->param_count + sig->hasthis));
+ for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
+ args [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
+ memcpy (args [i], cfg->args [i], sizeof (MonoInst));
+ }
+ cfg->args = args;
+
+ header = mono_method_get_header (method);
+ locals = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst*) * header->num_locals);
+ for (i = 0; i < header->num_locals; ++i) {
+ locals [i] = mono_mempool_alloc (acfg->mempool, sizeof (MonoInst));
+ memcpy (locals [i], cfg->locals [i], sizeof (MonoInst));
+ }
+ cfg->locals = locals;
+ }
/* Free some fields used by cfg to conserve memory */
mono_mempool_destroy (cfg->mempool);
//printf ("Compile: %s\n", mono_method_full_name (method, TRUE));
+ while (index >= acfg->cfgs_size) {
+ MonoCompile **new_cfgs;
+ int new_size;
+
+ new_size = acfg->cfgs_size * 2;
+ new_cfgs = g_new0 (MonoCompile*, new_size);
+ memcpy (new_cfgs, acfg->cfgs, sizeof (MonoCompile*) * acfg->cfgs_size);
+ g_free (acfg->cfgs);
+ acfg->cfgs = new_cfgs;
+ acfg->cfgs_size = new_size;
+ }
acfg->cfgs [index] = cfg;
g_hash_table_insert (acfg->method_to_cfg, cfg->orig_method, cfg);
- acfg->stats.ccount++;
+ 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
MonoCompile *cfg = acfg->cfgs [i];
for (ji = cfg->patch_info; ji; ji = ji->next) {
- if (is_shared_got_patch (ji))
+ if (mono_aot_is_shared_got_patch (ji))
get_shared_got_offset (acfg, ji);
}
}
emit_code (MonoAotCompile *acfg)
{
int i;
- char *symbol;
+ char symbol [256];
GList *l;
- symbol = g_strdup_printf ("methods");
+ sprintf (symbol, "methods");
emit_section_change (acfg, ".text", 0);
emit_global (acfg, symbol, TRUE);
emit_alignment (acfg, 8);
emit_label (acfg, symbol);
- g_free (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);
emit_method_code (acfg, acfg->cfgs [i]);
}
- symbol = g_strdup_printf ("methods_end");
+ sprintf (symbol, "methods_end");
emit_section_change (acfg, ".text", 0);
emit_global (acfg, symbol, FALSE);
emit_alignment (acfg, 8);
emit_label (acfg, symbol);
- g_free (symbol);
- symbol = g_strdup_printf ("method_offsets");
+ sprintf (symbol, "method_offsets");
emit_section_change (acfg, ".text", 1);
emit_global (acfg, symbol, FALSE);
emit_alignment (acfg, 8);
emit_label (acfg, symbol);
- g_free (symbol);
for (i = 0; i < acfg->nmethods; ++i) {
if (acfg->cfgs [i]) {
- symbol = g_strdup_printf (".Lm_%x", i);
+ sprintf (symbol, ".Lm_%x", i);
emit_symbol_diff (acfg, symbol, "methods", 0);
- g_free (symbol);
} else {
emit_int32 (acfg, 0xffffffff);
}
emit_info (MonoAotCompile *acfg)
{
int i;
- char *symbol;
+ char symbol [256];
GList *l;
/* Emit method info */
- symbol = g_strdup_printf ("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);
+}
+
+#endif /* #if !defined(DISABLE_AOT) && !defined(DISABLE_JIT) */
+
+/*
+ * 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;
+
+ while (*p++) {
+ if (*p)
+ hash = (hash << 5) - hash + *p;
+ }
+
+ return hash;
+}
+
+#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); \
+}
+
+/*
+ * mono_aot_method_hash:
+ *
+ * Return a hash code for methods which only depends on metadata.
+ */
+guint32
+mono_aot_method_hash (MonoMethod *method)
+{
+ MonoMethodSignature *sig;
+ MonoClass *klass;
+ int i;
+ int hashes_count;
+ guint32 *hashes_start, *hashes;
+ guint32 a, b, c;
+
+ /* Similar to the hash in mono_method_get_imt_slot () */
+
+ sig = mono_method_signature (method);
+
+ hashes_count = sig->param_count + 5;
+ hashes_start = malloc (hashes_count * sizeof (guint32));
+ hashes = hashes_start;
+
+ /* 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;
+
+ if (!method->wrapper_type) {
+ char *full_name = mono_type_full_name (&klass->byval_arg);
+
+ hashes [0] = mono_aot_str_hash (full_name);
+ hashes [1] = 0;
+ g_free (full_name);
+ } else {
+ 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
+
+/*
+ * 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;
+
+ tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
+
+ 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);
+
+ name = g_strdup_printf ("%s:%s (%s)", klass_desc, method->name, tmpsig);
+ break;
+ }
+
+ g_free (tmpsig);
+
+ return name;
+}
+
+/*
+ * 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)
+{
+ MonoAotTrampInfo *info = g_new0 (MonoAotTrampInfo, 1);
+
+ info->name = (char*)name;
+ info->code = code;
+ info->code_size = code_size;
+
+ return info;
+}
+
+/*
+ * 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)
+{
+ 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;
+ }
+}
+
+#if !defined(DISABLE_AOT) && !defined(DISABLE_JIT)
+
+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, max_chain_length;
+ int *chain_lengths;
+
+ 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);
+ char *name;
+
+ if (!cfg)
+ continue;
+
+ nmethods ++;
+ info_offsets [i] = p - buf;
+
+ 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:
+ name = mono_aot_wrapper_name (method);
+ break;
+ }
+ }
+
+ 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);
+ }
+
+ 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);
- g_free (symbol);
- /* To reduce size of generated assembly code */
- symbol = g_strdup_printf ("mi");
- emit_label (acfg, symbol);
- g_free (symbol);
+ emit_bytes (acfg, buf, p - buf);
- for (l = acfg->method_order; l != NULL; l = l->next) {
- i = GPOINTER_TO_UINT (l->data);
+ emit_line (acfg);
- if (acfg->cfgs [i])
- emit_method_info (acfg, acfg->cfgs [i]);
- }
+ /*
+ * 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;
- symbol = g_strdup_printf ("method_info_offsets");
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
- g_free (symbol);
+ key = info_offsets [i];
+ value = get_method_index (acfg, method);
- for (i = 0; i < acfg->nmethods; ++i) {
- if (acfg->cfgs [i]) {
- symbol = g_strdup_printf (".Lm_%x_p", i);
- emit_symbol_diff (acfg, symbol, "mi", 0);
- g_free (symbol);
+ hash = mono_aot_method_hash (method) % table_size;
+
+ 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;
+
+ entry = g_ptr_array_index (table, hash);
+ if (entry == NULL) {
+ new_entry->index = hash;
+ g_ptr_array_index (table, hash) = new_entry;
} else {
- emit_int32 (acfg, 0);
+ while (entry->next)
+ entry = entry->next;
+
+ entry->next = new_entry;
+ new_entry->index = table->len;
+ g_ptr_array_add (table, new_entry);
}
}
- emit_line (acfg);
-}
-static void
-emit_wrapper_info (MonoAotCompile *acfg)
-{
- int i, index;
- char *symbol;
- char *name;
+ //printf ("MAX: %d\n", max_chain_length);
- /* Emit method info */
- symbol = g_strdup_printf ("wrapper_info");
- emit_section_change (acfg, ".text", 1);
+ /* 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_free (symbol);
- if (!acfg->aot_opts.full_aot)
- return;
+ 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);
- for (i = 0; i < acfg->nmethods; ++i) {
- MonoCompile *cfg = acfg->cfgs [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);
+ }
+ }
- if (!cfg || !cfg->orig_method->wrapper_type)
- continue;
+ /*
+ * 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);
- index = get_method_index (acfg, cfg->orig_method);
+ 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);
- // FIXME: Optimize disk usage and lookup speed
- name = mono_method_full_name (cfg->orig_method, TRUE);
- emit_string (acfg, name);
- emit_alignment (acfg, 4);
- emit_int32 (acfg, index);
+ emit_int32 (acfg, get_method_index (acfg, method));
+ emit_int32 (acfg, info_offsets [i]);
}
-
- emit_byte (acfg, 0);
-
- emit_line (acfg);
}
static void
emit_method_order (MonoAotCompile *acfg)
{
int i, index, len;
- char *symbol;
+ char symbol [256];
GList *l;
- symbol = g_strdup_printf ("method_order");
+ sprintf (symbol, "method_order");
emit_section_change (acfg, ".text", 1);
emit_global (acfg, symbol, FALSE);
emit_alignment (acfg, 8);
emit_label (acfg, symbol);
- g_free (symbol);
/* First emit an index table */
index = 0;
}
emit_line (acfg);
- symbol = g_strdup_printf ("method_order_end");
+ sprintf (symbol, "method_order_end");
emit_section_change (acfg, ".text", 1);
emit_global (acfg, symbol, FALSE);
emit_label (acfg, symbol);
- g_free (symbol);
}
static void
emit_exception_info (MonoAotCompile *acfg)
{
int i;
- char *symbol;
+ char symbol [256];
- symbol = g_strdup_printf ("ex_info");
+ sprintf (symbol, "ex_info");
emit_section_change (acfg, ".text", 1);
emit_global (acfg, symbol, FALSE);
emit_alignment (acfg, 8);
emit_label (acfg, symbol);
- g_free (symbol);
/* To reduce size of generated assembly */
- symbol = g_strdup_printf ("ex");
+ sprintf (symbol, "ex");
emit_label (acfg, symbol);
- g_free (symbol);
for (i = 0; i < acfg->nmethods; ++i) {
if (acfg->cfgs [i])
emit_exception_debug_info (acfg, acfg->cfgs [i]);
}
- symbol = g_strdup_printf ("ex_info_offsets");
+ sprintf (symbol, "ex_info_offsets");
emit_section_change (acfg, ".text", 1);
emit_global (acfg, symbol, FALSE);
emit_alignment (acfg, 8);
emit_label (acfg, symbol);
- g_free (symbol);
for (i = 0; i < acfg->nmethods; ++i) {
if (acfg->cfgs [i]) {
- symbol = g_strdup_printf (".Le_%x_p", i);
+ sprintf (symbol, ".Le_%x_p", i);
emit_symbol_diff (acfg, symbol, "ex", 0);
- g_free (symbol);
} else {
emit_int32 (acfg, 0);
}
emit_line (acfg);
}
+static void
+emit_unwind_info (MonoAotCompile *acfg)
+{
+ int i;
+ char symbol [128];
+
+ /*
+ * 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.
+ */
+
+ sprintf (symbol, "unwind_info");
+ emit_section_change (acfg, ".text", 1);
+ emit_alignment (acfg, 8);
+ emit_label (acfg, symbol);
+ emit_global (acfg, symbol, FALSE);
+
+ 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;
+
+ unwind_info = mono_get_cached_unwind_info (index, &unwind_info_len);
+
+ p = buf;
+ encode_value (unwind_info_len, p, &p);
+ emit_bytes (acfg, buf, p - buf);
+ emit_bytes (acfg, unwind_info, unwind_info_len);
+
+ acfg->stats.unwind_info_size += (p - buf) + unwind_info_len;
+ }
+}
+
static void
emit_class_info (MonoAotCompile *acfg)
{
int i;
- char *symbol;
+ char symbol [256];
- symbol = g_strdup_printf ("class_info");
+ sprintf (symbol, "class_info");
emit_section_change (acfg, ".text", 1);
emit_global (acfg, symbol, FALSE);
emit_alignment (acfg, 8);
emit_label (acfg, symbol);
- g_free (symbol);
for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i)
emit_klass_info (acfg, MONO_TOKEN_TYPE_DEF | (i + 1));
- symbol = g_strdup_printf ("class_info_offsets");
+ sprintf (symbol, "class_info_offsets");
emit_section_change (acfg, ".text", 1);
emit_global (acfg, symbol, FALSE);
emit_alignment (acfg, 8);
emit_label (acfg, symbol);
- g_free (symbol);
for (i = 0; i < acfg->image->tables [MONO_TABLE_TYPEDEF].rows; ++i) {
- symbol = g_strdup_printf (".LK_I_%x", i);
+ sprintf (symbol, ".LK_I_%x", i);
emit_symbol_diff (acfg, symbol, "class_info", 0);
- g_free (symbol);
}
emit_line (acfg);
}
MonoClass *klass;
GPtrArray *table;
char *full_name;
- char *symbol;
+ char symbol [256];
ClassNameTableEntry *entry, *new_entry;
/*
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;
+ hash = mono_aot_str_hash (full_name) % table_size;
g_free (full_name);
/* FIXME: Allocate from the mempool */
}
/* Emit the table */
- symbol = g_strdup_printf ("class_name_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);
- g_free (symbol);
/* FIXME: Optimize memory usage */
g_assert (table_size < 65000);
emit_image_table (MonoAotCompile *acfg)
{
int i;
- char *symbol;
+ 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.
*/
- symbol = g_strdup_printf ("mono_image_table");
+ 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 (symbol);
emit_int32 (acfg, acfg->image_table->len);
for (i = 0; i < acfg->image_table->len; i++) {
static void
emit_got_info (MonoAotCompile *acfg)
{
- char *symbol;
- int i, buf_size;
+ 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.
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);
- /* No need to encode the patch type */
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);
}
acfg->stats.got_info_size = p - buf;
/* Emit got_info table */
- symbol = g_strdup_printf ("got_info");
+ sprintf (symbol, "got_info");
emit_section_change (acfg, ".text", 1);
emit_global (acfg, symbol, FALSE);
emit_alignment (acfg, 8);
emit_label (acfg, symbol);
- g_free (symbol);
emit_bytes (acfg, buf, p - buf);
/* Emit got_info_offsets table */
- symbol = g_strdup_printf ("got_info_offsets");
+ sprintf (symbol, "got_info_offsets");
emit_section_change (acfg, ".text", 1);
emit_global (acfg, symbol, FALSE);
emit_alignment (acfg, 8);
emit_label (acfg, symbol);
- g_free (symbol);
for (i = 0; i < acfg->shared_patches->len; ++i)
emit_int32 (acfg, got_info_offsets [i]);
static void
emit_got (MonoAotCompile *acfg)
{
- char *symbol;
+ char symbol [256];
/* Don't make GOT global so accesses to it don't need relocations */
- symbol = g_strdup_printf ("got");
- emit_section_change (acfg, ".bss", 1);
+ sprintf (symbol, "got");
+ emit_section_change (acfg, ".bss", 0);
emit_alignment (acfg, 8);
emit_label (acfg, symbol);
- if ((acfg->got_offset + acfg->num_trampoline_got_entries) > 0)
- emit_zero_bytes (acfg, (int)((acfg->got_offset + acfg->num_trampoline_got_entries) * sizeof (gpointer)));
- g_free (symbol);
+ if (acfg->got_offset > 0)
+ emit_zero_bytes (acfg, (int)(acfg->got_offset * sizeof (gpointer)));
- symbol = g_strdup_printf ("got_addr");
- emit_section_change (acfg, ".data", 1);
+ 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");
- g_free (symbol);
+}
+
+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", "");
+ }
+
+ /*
+ * 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;
- symbol = g_strdup_printf ("got_size");
- emit_section_change (acfg, ".data", 1);
+ /* 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_int32 (acfg, 0);
+ emit_int32 (acfg, 0);
+
+ /*
+ * 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");
+ }
+}
+
+static void
+emit_mem_end (MonoAotCompile *acfg)
+{
+ char symbol [128];
+
+ 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_file_info (MonoAotCompile *acfg)
+{
+ 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)));
- g_free (symbol);
+ 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_globals (MonoAotCompile *acfg)
+emit_dwarf_info (MonoAotCompile *acfg)
{
- char *opts_str;
+#ifdef EMIT_DWARF_INFO
+ int i;
+ char symbol [128], symbol2 [128];
+
+ /* DIEs for methods */
+ for (i = 0; i < acfg->nmethods; ++i) {
+ MonoCompile *cfg = acfg->cfgs [i];
+
+ if (!cfg)
+ continue;
+
+ sprintf (symbol, ".Lm_%x", i);
+ sprintf (symbol2, ".Lme_%x", i);
+
+ mono_dwarf_writer_emit_method (acfg->dwarf, cfg, cfg->method, symbol, symbol2, NULL, 0, cfg->args, cfg->locals, cfg->unwind_ops, NULL);
+ }
+#endif
+}
+
+static void
+collect_methods (MonoAotCompile *acfg)
+{
+ int i;
+ MonoImage *image = acfg->image;
+
+ /* Collect methods */
+ for (i = 0; i < 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) {
+ 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 && method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
+ /* Compile the wrapper instead */
+ /* We do this here instead of add_wrappers () because it is easy to do it here */
+ MonoMethod *wrapper = mono_marshal_get_native_wrapper (method, check_for_pending_exc, TRUE);
+ method = wrapper;
+ }
+
+ /* Since we add the normal methods first, their index will be equal to their zero based token index */
+ add_method_with_index (acfg, method, i);
+ acfg->method_index ++;
+ }
+
+ add_generic_instances (acfg);
+
+ if (acfg->aot_opts.full_aot)
+ add_wrappers (acfg);
+}
+
+static void
+compile_methods (MonoAotCompile *acfg)
+{
+ int i, methods_len;
+
+ if (acfg->aot_opts.nthreads > 0) {
+ GPtrArray *frag;
+ int len, j;
+ GPtrArray *threads;
+ HANDLE handle;
+ gpointer *user_data;
+ MonoMethod **methods;
+
+ methods_len = acfg->methods->len;
+
+ len = acfg->methods->len / acfg->aot_opts.nthreads;
+ g_assert (len > 0);
+ /*
+ * Partition the list of methods into fragments, and hand it to threads to
+ * process.
+ */
+ threads = g_ptr_array_new ();
+ /* Make a copy since acfg->methods is modified by compile_method () */
+ methods = g_new0 (MonoMethod*, methods_len);
+ //memcpy (methods, g_ptr_array_index (acfg->methods, 0), sizeof (MonoMethod*) * methods_len);
+ for (i = 0; i < methods_len; ++i)
+ methods [i] = g_ptr_array_index (acfg->methods, i);
+ i = 0;
+ while (i < methods_len) {
+ frag = g_ptr_array_new ();
+ for (j = 0; j < len; ++j) {
+ if (i < methods_len) {
+ g_ptr_array_add (frag, methods [i]);
+ i ++;
+ }
+ }
+
+ user_data = g_new0 (gpointer, 3);
+ user_data [0] = mono_domain_get ();
+ user_data [1] = acfg;
+ user_data [2] = frag;
+
+ handle = mono_create_thread (NULL, 0, (gpointer)compile_thread_main, user_data, 0, NULL);
+ g_ptr_array_add (threads, handle);
+ }
+ g_free (methods);
+
+ for (i = 0; i < threads->len; ++i) {
+ WaitForSingleObjectEx (g_ptr_array_index (threads, i), INFINITE, FALSE);
+ }
+ } else {
+ methods_len = 0;
+ }
+
+ /* Compile methods added by compile_method () or all methods if nthreads == 0 */
+ for (i = methods_len; i < acfg->methods->len; ++i) {
+ /* 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
- emit_string_symbol (acfg, "mono_assembly_guid" , acfg->image->guid);
+ 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;
+ }
- emit_string_symbol (acfg, "mono_aot_version", MONO_AOT_FILE_VERSION);
+ 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;
+ }
- opts_str = g_strdup_printf ("%d", acfg->opts);
- emit_string_symbol (acfg, "mono_aot_opt_flags", opts_str);
- g_free (opts_str);
+ g_free (command);
- emit_string_symbol (acfg, "mono_aot_full_aot", acfg->aot_opts.full_aot ? "TRUE" : "FALSE");
+ 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.bind_to_runtime_version)
- emit_string_symbol (acfg, "mono_runtime_version", FULL_VERSION);
+ if (acfg->aot_opts.outfile)
+ outfile_name = g_strdup_printf ("%s", acfg->aot_opts.outfile);
else
- emit_string_symbol (acfg, "mono_runtime_version", "");
+ outfile_name = g_strdup_printf ("%s%s", acfg->image->name, SHARED_EXT);
- /*
- * 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;
+ tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
- 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);
+#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;
+ }
- /* Emit the names */
- for (i = 0; i < acfg->globals->len; ++i) {
- char *name = g_ptr_array_index (acfg->globals, i);
+ 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);*/
- symbol = g_strdup_printf ("name_%d", i);
- emit_section_change (acfg, ".text", 1);
- emit_label (acfg, symbol);
- emit_string (acfg, name);
- g_free (symbol);
- }
+#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
- /* Emit the globals table */
- symbol = g_strdup_printf ("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);
+ rename (tmp_outfile_name, outfile_name);
- for (i = 0; i < acfg->globals->len; ++i) {
- char *name = g_ptr_array_index (acfg->globals, i);
+ g_free (tmp_outfile_name);
+ g_free (outfile_name);
+ g_free (objfile);
- symbol = g_strdup_printf ("name_%d", i);
- emit_pointer (acfg, symbol);
- g_free (symbol);
+ if (acfg->aot_opts.save_temps)
+ printf ("Retained input file.\n");
+ else
+ unlink (acfg->tmpfname);
- symbol = g_strdup_printf ("%s", name);
- emit_pointer (acfg, symbol);
- g_free (symbol);
- }
- /* Null terminate the table */
- emit_pointer (acfg, NULL);
- emit_pointer (acfg, NULL);
+ return 0;
+}
- if (acfg->aot_opts.static_link) {
- /*
- * Emit a global symbol which can be passed by an embedding app to
- * mono_aot_register_module ().
- */
- symbol = g_strdup_printf ("mono_aot_module_%s_info", acfg->image->assembly->aname.name);
- 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 {
- symbol = g_strdup_printf ("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__)
- /*
- * 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
- g_free (symbol);
- }
- }
+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
{
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->method_got_offsets);
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->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);
}
mono_compile_assembly (MonoAssembly *ass, guint32 opts, const char *aot_options)
{
MonoImage *image = ass->image;
- char *symbol;
- int i, res;
+ 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 = 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 = 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);
- load_profile_files (acfg);
+ //acfg->aot_opts.print_skipped_methods = TRUE;
- emit_start (acfg);
+#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
- acfg->num_aot_trampolines = acfg->aot_opts.full_aot ? 10240 : 0;
+ if (acfg->aot_opts.static_link)
+ acfg->aot_opts.asm_writer = TRUE;
- acfg->method_index = 1;
+ 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);
- /* Collect methods */
- for (i = 0; i < image->tables [MONO_TABLE_METHOD].rows; ++i) {
- MonoMethod *method;
- guint32 token = MONO_TOKEN_METHOD_DEF | (i + 1);
+ tmp_outfile_name = g_strdup_printf ("%s.tmp", outfile_name);
- method = mono_get_method (acfg->image, token, NULL);
+ acfg->fp = fopen (tmp_outfile_name, "w");
+ g_assert (acfg->fp);
- if (acfg->aot_opts.full_aot && method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
- /* Compile the wrapper instead */
- /* We do this here instead of add_wrappers () because it is easy to do it here */
- MonoMethod *wrapper = mono_marshal_get_native_wrapper (method, check_for_pending_exc, TRUE);
- method = wrapper;
+ 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);
- /* Since we add the normal methods first, their index will be equal to their zero based token index */
- add_method_with_index (acfg, method, i);
- acfg->method_index ++;
+ acfg->w = img_writer_create (acfg->fp, FALSE);
+
+ tmp_outfile_name = NULL;
+ outfile_name = NULL;
}
- if (acfg->aot_opts.full_aot)
- add_wrappers (acfg);
+ load_profile_files (acfg);
- acfg->nmethods = acfg->methods->len + 1;
- acfg->cfgs = g_new0 (MonoCompile*, acfg->nmethods + 32);
- acfg->method_got_offsets = g_new0 (guint32, acfg->nmethods + 32);
+ 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;
- /* Compile methods */
- for (i = 0; i < acfg->methods->len; ++i) {
- compile_method (acfg, g_ptr_array_index (acfg->methods, i));
- }
+ 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_wrapper_info (acfg);
+ emit_extra_methods (acfg);
emit_method_order (acfg);
emit_exception_info (acfg);
+ emit_unwind_info (acfg);
+
emit_class_info (acfg);
emit_plt (acfg);
emit_got (acfg);
+ emit_file_info (acfg);
+
emit_globals (acfg);
- symbol = g_strdup_printf ("mem_end");
- emit_section_change (acfg, ".text", 1);
- emit_global (acfg, symbol, FALSE);
- emit_alignment (acfg, 8);
- emit_label (acfg, symbol);
- g_free (symbol);
+ if (acfg->dwarf)
+ emit_dwarf_info (acfg);
+
+ 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)));
- res = emit_writeout (acfg);
+ TV_GETTIME (atv);
+ 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 ("Compiled %d out of %d methods (%d%%)\n", acfg->stats.ccount, acfg->stats.mcount, acfg->stats.mcount ? (acfg->stats.ccount * 100) / acfg->stats.mcount : 100);
if (acfg->stats.genericcount)
printf ("%d methods are generic (%d%%)\n", acfg->stats.genericcount, acfg->stats.mcount ? (acfg->stats.genericcount * 100) / acfg->stats.mcount : 100);
if (acfg->stats.abscount)
printf ("%d methods contain absolute addresses (%d%%)\n", acfg->stats.abscount, acfg->stats.mcount ? (acfg->stats.abscount * 100) / acfg->stats.mcount : 100);
- if (acfg->stats.wrappercount)
- printf ("%d methods contain wrapper references (%d%%)\n", acfg->stats.wrappercount, acfg->stats.mcount ? (acfg->stats.wrappercount * 100) / acfg->stats.mcount : 100);
if (acfg->stats.lmfcount)
printf ("%d methods contain lmf pointers (%d%%)\n", acfg->stats.lmfcount, acfg->stats.mcount ? (acfg->stats.lmfcount * 100) / acfg->stats.mcount : 100);
if (acfg->stats.ocount)
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 ("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);
return 0;
}
+
+/*
+ * Support for emitting debug info for JITted code.
+ *
+ * This works as follows:
+ * - the runtime writes out an xdb.s file containing DWARF debug info.
+ * - the user calls a gdb macro
+ * - the macro compiles and loads this shared library using add-symbol-file.
+ *
+ * This is based on the xdebug functionality in the Kaffe Java VM.
+ *
+ * We emit assembly code instead of using the ELF writer, so we can emit debug info
+ * incrementally as each method is JITted, and the debugger doesn't have to call
+ * into the runtime to emit the shared library, which would cause all kinds of
+ * complications, like threading issues, and the fact that the ELF writer's
+ * emit_writeout () function cannot be called more than once.
+ */
+
+/* The recommended gdb macro is: */
+/*
+ define xdb
+ shell rm -f xdb.so && as --64 -o xdb.o xdb.s && ld -shared -o xdb.so xdb.o
+ add-symbol-file xdb.so 0
+ end
+*/
+
+static MonoDwarfWriter *xdebug_writer;
+static FILE *xdebug_fp;
+
+void
+mono_xdebug_init (void)
+{
+ FILE *il_file;
+ MonoImageWriter *w;
+
+ unlink ("xdb.s");
+ xdebug_fp = fopen ("xdb.s", "w");
+
+ w = img_writer_create (xdebug_fp, FALSE);
+
+ img_writer_emit_start (w);
+
+ /* This file will contain the IL code for methods which don't have debug info */
+ il_file = fopen ("xdb.il", "w");
+
+ xdebug_writer = mono_dwarf_writer_create (w, il_file);
+
+ /* 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 ());
+}
+
+/*
+ * mono_save_xdebug_info:
+ *
+ * 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)
+{
+ if (!xdebug_writer)
+ return;
+
+ 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)
+{
+ if (!xdebug_writer)
+ return;
+
+ 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
return 0;
}
+void
+mono_xdebug_init (void)
+{
+}
+
+void
+mono_save_xdebug_info (MonoCompile *cfg)
+{
+}
+
+void
+mono_save_trampoline_xdebug_info (const char *tramp_name, guint8 *code, guint32 code_size, GSList *unwind_info)
+{
+}
+
#endif
projects / mono.git / blobdiff