#include "defs.h"
#include "gdb_string.h"
#include "frame.h"
#include "inferior.h"
#include "gdbcore.h"
#include "target.h"
#include "floatformat.h"
#include "symtab.h"
#include "gdbcmd.h"
#include "command.h"
#include "arch-utils.h"
#include "regcache.h"
#include "doublest.h"
#include "value.h"
#include "gdb_assert.h"
#include "bfd.h"
#include "elf-bfd.h"
#include "i386-tdep.h"
#undef XMALLOC
#define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
static char *i386_register_names[] =
{
"eax", "ecx", "edx", "ebx",
"esp", "ebp", "esi", "edi",
"eip", "eflags", "cs", "ss",
"ds", "es", "fs", "gs",
"st0", "st1", "st2", "st3",
"st4", "st5", "st6", "st7",
"fctrl", "fstat", "ftag", "fiseg",
"fioff", "foseg", "fooff", "fop",
"xmm0", "xmm1", "xmm2", "xmm3",
"xmm4", "xmm5", "xmm6", "xmm7",
"mxcsr"
};
static int i386_register_offset[MAX_NUM_REGS];
static int i386_register_size[MAX_NUM_REGS] = {
4, 4, 4, 4,
4, 4, 4, 4,
4, 4, 4, 4,
4, 4, 4, 4,
10, 10, 10, 10,
10, 10, 10, 10,
4, 4, 4, 4,
4, 4, 4, 4,
16, 16, 16, 16,
16, 16, 16, 16,
4
};
char *
i386_register_name (int reg)
{
if (reg < 0)
return NULL;
if (reg >= sizeof (i386_register_names) / sizeof (*i386_register_names))
return NULL;
return i386_register_names[reg];
}
int
i386_register_byte (int reg)
{
return i386_register_offset[reg];
}
int
i386_register_raw_size (int reg)
{
return i386_register_size[reg];
}
int
i386_register_virtual_size (int reg)
{
return TYPE_LENGTH (REGISTER_VIRTUAL_TYPE (reg));
}
int
i386_stab_reg_to_regnum (int reg)
{
if (reg >= 0 && reg <= 7)
{
return reg;
}
else if (reg >= 12 && reg <= 19)
{
return reg - 12 + FP0_REGNUM;
}
else if (reg >= 21 && reg <= 28)
{
return reg - 21 + XMM0_REGNUM;
}
else if (reg >= 29 && reg <= 36)
{
return reg - 29 + FP0_REGNUM;
}
return NUM_REGS + NUM_PSEUDO_REGS;
}
int
i386_dwarf_reg_to_regnum (int reg)
{
if (reg >= 0 && reg <= 9)
{
return reg;
}
else if (reg >= 11 && reg <= 18)
{
return reg - 11 + FP0_REGNUM;
}
else if (reg >= 21)
{
return i386_stab_reg_to_regnum (reg);
}
return NUM_REGS + NUM_PSEUDO_REGS;
}
static const char att_flavor[] = "att";
static const char intel_flavor[] = "intel";
static const char *valid_flavors[] =
{
att_flavor,
intel_flavor,
NULL
};
static const char *disassembly_flavor = att_flavor;
#define CODESTREAM_BUFSIZ 1
static CORE_ADDR codestream_next_addr;
static CORE_ADDR codestream_addr;
static unsigned char codestream_buf[CODESTREAM_BUFSIZ];
static int codestream_off;
static int codestream_cnt;
#define codestream_tell() (codestream_addr + codestream_off)
#define codestream_peek() \
(codestream_cnt == 0 ? \
codestream_fill(1) : codestream_buf[codestream_off])
#define codestream_get() \
(codestream_cnt-- == 0 ? \
codestream_fill(0) : codestream_buf[codestream_off++])
static unsigned char
codestream_fill (int peek_flag)
{
codestream_addr = codestream_next_addr;
codestream_next_addr += CODESTREAM_BUFSIZ;
codestream_off = 0;
codestream_cnt = CODESTREAM_BUFSIZ;
read_memory (codestream_addr, (char *) codestream_buf, CODESTREAM_BUFSIZ);
if (peek_flag)
return (codestream_peek ());
else
return (codestream_get ());
}
static void
codestream_seek (CORE_ADDR place)
{
codestream_next_addr = place / CODESTREAM_BUFSIZ;
codestream_next_addr *= CODESTREAM_BUFSIZ;
codestream_cnt = 0;
codestream_fill (1);
while (codestream_tell () != place)
codestream_get ();
}
static void
codestream_read (unsigned char *buf, int count)
{
unsigned char *p;
int i;
p = buf;
for (i = 0; i < count; i++)
*p++ = codestream_get ();
}
static void
i386_follow_jump (void)
{
unsigned char buf[4];
long delta;
int data16;
CORE_ADDR pos;
pos = codestream_tell ();
data16 = 0;
if (codestream_peek () == 0x66)
{
codestream_get ();
data16 = 1;
}
switch (codestream_get ())
{
case 0xe9:
if (data16)
{
codestream_read (buf, 2);
delta = extract_signed_integer (buf, 2);
pos += delta + 4;
}
else
{
codestream_read (buf, 4);
delta = extract_signed_integer (buf, 4);
pos += delta + 5;
}
break;
case 0xeb:
codestream_read (buf, 1);
delta = extract_signed_integer (buf, 1);
pos += delta + 2;
break;
}
codestream_seek (pos);
}
static long
i386_get_frame_setup (CORE_ADDR pc)
{
unsigned char op;
codestream_seek (pc);
i386_follow_jump ();
op = codestream_get ();
if (op == 0x58)
{
int pos;
unsigned char buf[4];
static unsigned char proto1[3] = { 0x87, 0x04, 0x24 };
static unsigned char proto2[4] = { 0x87, 0x44, 0x24, 0x00 };
pos = codestream_tell ();
codestream_read (buf, 4);
if (memcmp (buf, proto1, 3) == 0)
pos += 3;
else if (memcmp (buf, proto2, 4) == 0)
pos += 4;
codestream_seek (pos);
op = codestream_get ();
}
if (op == 0x68 || op == 0x6a)
{
int pos;
unsigned char buf[8];
pos = codestream_tell ();
if (op == 0x68)
pos += 4;
else
pos += 1;
codestream_seek (pos);
codestream_read (buf, sizeof (buf));
if (buf[0] == 0xe8 && buf[6] == 0xc4 && buf[7] == 0x4)
pos += sizeof (buf);
codestream_seek (pos);
op = codestream_get ();
}
if (op == 0x55)
{
switch (codestream_get ())
{
case 0x8b:
if (codestream_get () != 0xec)
return -1;
break;
case 0x89:
if (codestream_get () != 0xe5)
return -1;
break;
default:
return -1;
}
op = codestream_peek ();
if (op == 0x83)
{
codestream_get ();
if (codestream_get () != 0xec)
{
codestream_seek (codestream_tell () - 2);
return 0;
}
return (codestream_get ());
}
else if (op == 0x81)
{
char buf[4];
codestream_get ();
if (codestream_get () != 0xec)
{
codestream_seek (codestream_tell () - 2);
return 0;
}
codestream_read ((unsigned char *) buf, 4);
return extract_signed_integer (buf, 4);
}
else
{
return 0;
}
}
else if (op == 0xc8)
{
char buf[2];
codestream_read ((unsigned char *) buf, 2);
codestream_get ();
return extract_unsigned_integer (buf, 2);
}
return (-1);
}
CORE_ADDR
i386_frame_chain (struct frame_info *frame)
{
if (frame->signal_handler_caller)
return frame->frame;
if (! inside_entry_file (frame->pc))
return read_memory_unsigned_integer (frame->frame, 4);
return 0;
}
int
i386_frameless_function_invocation (struct frame_info *frame)
{
if (frame->signal_handler_caller)
return 0;
return frameless_look_for_prologue (frame);
}
CORE_ADDR
i386_frame_saved_pc (struct frame_info *frame)
{
#if defined (SIGCONTEXT_PC_OFFSET) || defined (I386V4_SIGTRAMP_SAVED_PC)
if (frame->signal_handler_caller)
return sigtramp_saved_pc (frame);
#endif
return read_memory_unsigned_integer (frame->frame + 4, 4);
}
CORE_ADDR
i386go32_frame_saved_pc (struct frame_info *frame)
{
return read_memory_integer (frame->frame + 4, 4);
}
CORE_ADDR
i386_saved_pc_after_call (struct frame_info *frame)
{
return read_memory_unsigned_integer (read_register (SP_REGNUM), 4);
}
int
i386_frame_num_args (struct frame_info *fi)
{
#if 1
return -1;
#else
int retpc;
unsigned char op;
struct frame_info *pfi;
int frameless;
frameless = FRAMELESS_FUNCTION_INVOCATION (fi);
if (frameless)
return -1;
pfi = get_prev_frame (fi);
if (pfi == 0)
{
return -1;
}
else
{
retpc = pfi->pc;
op = read_memory_integer (retpc, 1);
if (op == 0x59)
return 1;
else if (op == 0x83)
{
op = read_memory_unsigned_integer (retpc + 1, 1);
if (op == 0xc4)
return (read_memory_unsigned_integer (retpc + 2, 1) & 0xff) / 4;
else
return 0;
}
else if (op == 0x81)
{
op = read_memory_integer (retpc + 1, 1);
if (op == 0xc4)
return read_memory_unsigned_integer (retpc + 2, 4) / 4;
else
return 0;
}
else
{
return 0;
}
}
#endif
}
void
i386_frame_init_saved_regs (struct frame_info *fip)
{
long locals = -1;
unsigned char op;
CORE_ADDR dummy_bottom;
CORE_ADDR addr;
CORE_ADDR pc;
int i;
if (fip->saved_regs)
return;
frame_saved_regs_zalloc (fip);
dummy_bottom = fip->frame - 4 - REGISTER_BYTES - CALL_DUMMY_LENGTH;
if (dummy_bottom <= fip->pc && fip->pc <= fip->frame)
{
addr = fip->frame;
for (i = 0; i < NUM_REGS; i++)
{
addr -= REGISTER_RAW_SIZE (i);
fip->saved_regs[i] = addr;
}
return;
}
pc = get_pc_function_start (fip->pc);
if (pc != 0)
locals = i386_get_frame_setup (pc);
if (locals >= 0)
{
addr = fip->frame - 4 - locals;
for (i = 0; i < 8; i++)
{
op = codestream_get ();
if (op < 0x50 || op > 0x57)
break;
#ifdef I386_REGNO_TO_SYMMETRY
fip->saved_regs[I386_REGNO_TO_SYMMETRY (op - 0x50)] = addr;
#else
fip->saved_regs[op - 0x50] = addr;
#endif
addr -= 4;
}
}
fip->saved_regs[PC_REGNUM] = fip->frame + 4;
fip->saved_regs[FP_REGNUM] = fip->frame;
}
int
i386_skip_prologue (int pc)
{
unsigned char op;
int i;
static unsigned char pic_pat[6] =
{ 0xe8, 0, 0, 0, 0,
0x5b,
};
CORE_ADDR pos;
if (i386_get_frame_setup (pc) < 0)
return (pc);
for (i = 0; i < 8; i++)
{
op = codestream_peek ();
if (op < 0x50 || op > 0x57)
break;
codestream_get ();
}
pos = codestream_tell ();
for (i = 0; i < 6; i++)
{
op = codestream_get ();
if (pic_pat[i] != op)
break;
}
if (i == 6)
{
unsigned char buf[4];
long delta = 6;
op = codestream_get ();
if (op == 0x89)
{
op = codestream_get ();
if (op == 0x5d)
{
delta += 3;
codestream_read (buf, 1);
}
else if (op == 0x9d)
{
delta += 6;
codestream_read (buf, 4);
}
else
delta = -1;
op = codestream_get ();
}
if (delta > 0 && op == 0x81 && codestream_get () == 0xc3)
{
pos += delta + 6;
}
}
codestream_seek (pos);
i386_follow_jump ();
return (codestream_tell ());
}
void
i386_push_dummy_frame (void)
{
CORE_ADDR sp = read_register (SP_REGNUM);
CORE_ADDR fp;
int regnum;
char regbuf[MAX_REGISTER_RAW_SIZE];
sp = push_word (sp, read_register (PC_REGNUM));
sp = push_word (sp, read_register (FP_REGNUM));
fp = sp;
for (regnum = 0; regnum < NUM_REGS; regnum++)
{
read_register_gen (regnum, regbuf);
sp = push_bytes (sp, regbuf, REGISTER_RAW_SIZE (regnum));
}
write_register (SP_REGNUM, sp);
write_register (FP_REGNUM, fp);
}
void
i386_fix_call_dummy (char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs,
struct value **args, struct type *type, int gcc_p)
{
int from, to, delta, loc;
loc = (int)(read_register (SP_REGNUM) - CALL_DUMMY_LENGTH);
from = loc + 5;
to = (int)(fun);
delta = to - from;
*((char *)(dummy) + 1) = (delta & 0xff);
*((char *)(dummy) + 2) = ((delta >> 8) & 0xff);
*((char *)(dummy) + 3) = ((delta >> 16) & 0xff);
*((char *)(dummy) + 4) = ((delta >> 24) & 0xff);
}
void
i386_pop_frame (void)
{
struct frame_info *frame = get_current_frame ();
CORE_ADDR fp;
int regnum;
char regbuf[MAX_REGISTER_RAW_SIZE];
fp = FRAME_FP (frame);
i386_frame_init_saved_regs (frame);
for (regnum = 0; regnum < NUM_REGS; regnum++)
{
CORE_ADDR addr;
addr = frame->saved_regs[regnum];
if (addr)
{
read_memory (addr, regbuf, REGISTER_RAW_SIZE (regnum));
write_register_bytes (REGISTER_BYTE (regnum), regbuf,
REGISTER_RAW_SIZE (regnum));
}
}
write_register (FP_REGNUM, read_memory_unsigned_integer (fp, 4));
write_register (PC_REGNUM, read_memory_unsigned_integer (fp + 4, 4));
write_register (SP_REGNUM, fp + 8);
flush_cached_frames ();
}
#ifdef GET_LONGJMP_TARGET
int
get_longjmp_target (CORE_ADDR *pc)
{
char buf[TARGET_PTR_BIT / TARGET_CHAR_BIT];
CORE_ADDR sp, jb_addr;
sp = read_register (SP_REGNUM);
if (target_read_memory (sp + SP_ARG0,
buf,
TARGET_PTR_BIT / TARGET_CHAR_BIT))
return 0;
jb_addr = extract_address (buf, TARGET_PTR_BIT / TARGET_CHAR_BIT);
if (target_read_memory (jb_addr + JB_PC * JB_ELEMENT_SIZE, buf,
TARGET_PTR_BIT / TARGET_CHAR_BIT))
return 0;
*pc = extract_address (buf, TARGET_PTR_BIT / TARGET_CHAR_BIT);
return 1;
}
#endif
CORE_ADDR
i386_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
int struct_return, CORE_ADDR struct_addr)
{
sp = default_push_arguments (nargs, args, sp, struct_return, struct_addr);
if (struct_return)
{
char buf[4];
sp -= 4;
store_address (buf, 4, struct_addr);
write_memory (sp, buf, 4);
}
return sp;
}
void
i386_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
{
}
#define LOW_RETURN_REGNUM 0
#define HIGH_RETURN_REGNUM 2
void
i386_extract_return_value (struct type *type, char *regbuf, char *valbuf)
{
int len = TYPE_LENGTH (type);
if (TYPE_CODE (type) == TYPE_CODE_STRUCT
&& TYPE_NFIELDS (type) == 1)
{
i386_extract_return_value (TYPE_FIELD_TYPE (type, 0), regbuf, valbuf);
return;
}
if (TYPE_CODE (type) == TYPE_CODE_FLT)
{
if (NUM_FREGS == 0)
{
warning ("Cannot find floating-point return value.");
memset (valbuf, 0, len);
return;
}
convert_typed_floating (®buf[REGISTER_BYTE (FP0_REGNUM)],
builtin_type_i387_ext, valbuf, type);
}
else
{
int low_size = REGISTER_RAW_SIZE (LOW_RETURN_REGNUM);
int high_size = REGISTER_RAW_SIZE (HIGH_RETURN_REGNUM);
if (len <= low_size)
memcpy (valbuf, ®buf[REGISTER_BYTE (LOW_RETURN_REGNUM)], len);
else if (len <= (low_size + high_size))
{
memcpy (valbuf,
®buf[REGISTER_BYTE (LOW_RETURN_REGNUM)], low_size);
memcpy (valbuf + low_size,
®buf[REGISTER_BYTE (HIGH_RETURN_REGNUM)], len - low_size);
}
else
internal_error (__FILE__, __LINE__,
"Cannot extract return value of %d bytes long.", len);
}
}
void
i386_store_return_value (struct type *type, char *valbuf)
{
int len = TYPE_LENGTH (type);
if (TYPE_CODE (type) == TYPE_CODE_STRUCT
&& TYPE_NFIELDS (type) == 1)
{
i386_store_return_value (TYPE_FIELD_TYPE (type, 0), valbuf);
return;
}
if (TYPE_CODE (type) == TYPE_CODE_FLT)
{
unsigned int fstat;
char buf[FPU_REG_RAW_SIZE];
if (NUM_FREGS == 0)
{
warning ("Cannot set floating-point return value.");
return;
}
convert_typed_floating (valbuf, type, buf, builtin_type_i387_ext);
write_register_bytes (REGISTER_BYTE (FP0_REGNUM), buf,
FPU_REG_RAW_SIZE);
fstat = read_register (FSTAT_REGNUM);
fstat |= (7 << 11);
write_register (FSTAT_REGNUM, fstat);
write_register (FTAG_REGNUM, 0x3fff);
}
else
{
int low_size = REGISTER_RAW_SIZE (LOW_RETURN_REGNUM);
int high_size = REGISTER_RAW_SIZE (HIGH_RETURN_REGNUM);
if (len <= low_size)
write_register_bytes (REGISTER_BYTE (LOW_RETURN_REGNUM), valbuf, len);
else if (len <= (low_size + high_size))
{
write_register_bytes (REGISTER_BYTE (LOW_RETURN_REGNUM),
valbuf, low_size);
write_register_bytes (REGISTER_BYTE (HIGH_RETURN_REGNUM),
valbuf + low_size, len - low_size);
}
else
internal_error (__FILE__, __LINE__,
"Cannot store return value of %d bytes long.", len);
}
}
CORE_ADDR
i386_extract_struct_value_address (char *regbuf)
{
return extract_address (®buf[REGISTER_BYTE (LOW_RETURN_REGNUM)],
REGISTER_RAW_SIZE (LOW_RETURN_REGNUM));
}
struct type *
i386_register_virtual_type (int regnum)
{
if (regnum == PC_REGNUM || regnum == FP_REGNUM || regnum == SP_REGNUM)
return lookup_pointer_type (builtin_type_void);
if (IS_FP_REGNUM (regnum))
return builtin_type_i387_ext;
if (IS_SSE_REGNUM (regnum))
return builtin_type_v4sf;
return builtin_type_int;
}
int
i386_register_convertible (int regnum)
{
return IS_FP_REGNUM (regnum);
}
void
i386_register_convert_to_virtual (int regnum, struct type *type,
char *from, char *to)
{
gdb_assert (IS_FP_REGNUM (regnum));
if (TYPE_CODE (type) != TYPE_CODE_FLT)
{
warning ("Cannot convert floating-point register value "
"to non-floating-point type.");
memset (to, 0, TYPE_LENGTH (type));
return;
}
convert_typed_floating (from, builtin_type_i387_ext, to, type);
}
void
i386_register_convert_to_raw (struct type *type, int regnum,
char *from, char *to)
{
gdb_assert (IS_FP_REGNUM (regnum));
if (TYPE_CODE (type) != TYPE_CODE_FLT)
{
warning ("Cannot convert non-floating-point type "
"to floating-point register value.");
memset (to, 0, TYPE_LENGTH (type));
return;
}
convert_typed_floating (from, type, to, builtin_type_i387_ext);
}
#ifdef I386V4_SIGTRAMP_SAVED_PC
CORE_ADDR
i386v4_sigtramp_saved_pc (struct frame_info *frame)
{
CORE_ADDR saved_pc_offset = 4;
char *name = NULL;
find_pc_partial_function (frame->pc, &name, NULL, NULL);
if (name)
{
if (STREQ (name, "_sigreturn"))
saved_pc_offset = 132 + 14 * 4;
else if (STREQ (name, "_sigacthandler"))
saved_pc_offset = 80 + 14 * 4;
else if (STREQ (name, "sigvechandler"))
saved_pc_offset = 120 + 14 * 4;
}
if (frame->next)
return read_memory_unsigned_integer (frame->next->frame + saved_pc_offset, 4);
return read_memory_unsigned_integer (read_register (SP_REGNUM) + saved_pc_offset, 4);
}
#endif
#ifdef STATIC_TRANSFORM_NAME
char *
sunpro_static_transform_name (char *name)
{
char *p;
if (IS_STATIC_TRANSFORM_NAME (name))
{
p = strrchr (name, '.');
if (p != NULL)
name = p + 1;
}
return name;
}
#endif
CORE_ADDR
skip_trampoline_code (CORE_ADDR pc, char *name)
{
if (pc && read_memory_unsigned_integer (pc, 2) == 0x25ff)
{
unsigned long indirect = read_memory_unsigned_integer (pc + 2, 4);
struct minimal_symbol *indsym =
indirect ? lookup_minimal_symbol_by_pc (indirect) : 0;
char *symname = indsym ? SYMBOL_NAME (indsym) : 0;
if (symname)
{
if (strncmp (symname, "__imp_", 6) == 0
|| strncmp (symname, "_imp_", 5) == 0)
return name ? 1 : read_memory_unsigned_integer (indirect, 4);
}
}
return 0;
}
static int
gdb_print_insn_i386 (bfd_vma memaddr, disassemble_info *info)
{
if (disassembly_flavor == att_flavor)
return print_insn_i386_att (memaddr, info);
else if (disassembly_flavor == intel_flavor)
return print_insn_i386_intel (memaddr, info);
internal_error (__FILE__, __LINE__, "failed internal consistency check");
}
static void
process_note_abi_tag_sections (bfd *abfd, asection *sect, void *obj)
{
int *os_ident_ptr = obj;
const char *name;
unsigned int sect_size;
name = bfd_get_section_name (abfd, sect);
sect_size = bfd_section_size (abfd, sect);
if (strcmp (name, ".note.ABI-tag") == 0 && sect_size > 0)
{
unsigned int name_length, data_length, note_type;
char *note = alloca (sect_size);
bfd_get_section_contents (abfd, sect, note,
(file_ptr) 0, (bfd_size_type) sect_size);
name_length = bfd_h_get_32 (abfd, note);
data_length = bfd_h_get_32 (abfd, note + 4);
note_type = bfd_h_get_32 (abfd, note + 8);
if (name_length == 4 && data_length == 16 && note_type == 1
&& strcmp (note + 12, "GNU") == 0)
{
int os_number = bfd_h_get_32 (abfd, note + 16);
switch (os_number)
{
case 0:
*os_ident_ptr = ELFOSABI_LINUX;
break;
case 1:
*os_ident_ptr = ELFOSABI_HURD;
break;
case 2:
*os_ident_ptr = ELFOSABI_SOLARIS;
break;
default:
internal_error (__FILE__, __LINE__,
"process_note_abi_sections: "
"unknown OS number %d", os_number);
break;
}
}
}
}
struct gdbarch *
i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
{
struct gdbarch_tdep *tdep;
struct gdbarch *gdbarch;
int os_ident;
if (info.abfd != NULL
&& bfd_get_flavour (info.abfd) == bfd_target_elf_flavour)
{
os_ident = elf_elfheader (info.abfd)->e_ident[EI_OSABI];
if (os_ident == ELFOSABI_NONE)
bfd_map_over_sections (info.abfd,
process_note_abi_tag_sections,
&os_ident);
if (os_ident == ELFOSABI_NONE)
{
if (strcmp (&elf_elfheader (info.abfd)->e_ident[8], "FreeBSD") == 0)
os_ident = ELFOSABI_FREEBSD;
}
}
else
os_ident = -1;
for (arches = gdbarch_list_lookup_by_info (arches, &info);
arches != NULL;
arches = gdbarch_list_lookup_by_info (arches->next, &info))
{
if (gdbarch_tdep (current_gdbarch)->os_ident != os_ident)
continue;
return arches->gdbarch;
}
tdep = XMALLOC (struct gdbarch_tdep);
gdbarch = gdbarch_alloc (&info, tdep);
tdep->os_ident = os_ident;
tdep->num_xmm_regs = 8;
set_gdbarch_use_generic_dummy_frames (gdbarch, 0);
set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 5);
set_gdbarch_call_dummy_breakpoint_offset_p (gdbarch, 1);
set_gdbarch_call_dummy_p (gdbarch, 1);
set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 0);
set_gdbarch_get_saved_register (gdbarch, generic_get_saved_register);
set_gdbarch_push_arguments (gdbarch, i386_push_arguments);
set_gdbarch_pc_in_call_dummy (gdbarch, pc_in_call_dummy_on_stack);
set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
set_gdbarch_num_regs (gdbarch, NUM_GREGS + NUM_FREGS + NUM_SSE_REGS);
return gdbarch;
}
void _initialize_i386_tdep (void);
void
_initialize_i386_tdep (void)
{
register_gdbarch_init (bfd_arch_i386, i386_gdbarch_init);
{
int i, offset;
offset = 0;
for (i = 0; i < MAX_NUM_REGS; i++)
{
i386_register_offset[i] = offset;
offset += i386_register_size[i];
}
}
tm_print_insn = gdb_print_insn_i386;
tm_print_insn_info.mach = bfd_lookup_arch (bfd_arch_i386, 0)->mach;
{
struct cmd_list_element *new_cmd;
new_cmd = add_set_enum_cmd ("disassembly-flavor", no_class,
valid_flavors,
&disassembly_flavor,
"\
Set the disassembly flavor, the valid values are \"att\" and \"intel\", \
and the default value is \"att\".",
&setlist);
add_show_from_set (new_cmd, &showlist);
}
}