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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [bfd/] [cpu-i386.c] - Diff between revs 161 and 166

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Rev 161 Rev 166
Line 21... Line 21... 
   MA 02110-1301, USA.  */
 
   MA 02110-1301, USA.  */
 
 
 
 
 
#include "sysdep.h"
 
#include "sysdep.h"
 
#include "bfd.h"
 
#include "bfd.h"
 
#include "libbfd.h"
 
#include "libbfd.h"
 
 
 
#include "libiberty.h"
 
 
 
 
 
 
 
extern void * bfd_arch_i386_short_nop_fill (bfd_size_type, bfd_boolean,
 
 
 
                                            bfd_boolean);
 
 
 
 
 
static const bfd_arch_info_type *
 
static const bfd_arch_info_type *
 
bfd_i386_compatible (const bfd_arch_info_type *a,
 
bfd_i386_compatible (const bfd_arch_info_type *a,
 
                     const bfd_arch_info_type *b)
 
                     const bfd_arch_info_type *b)
 
{
 
{
Line 36... Line 40... 
    compat = NULL;
 
    compat = NULL;
 
 
 
 
 
  return compat;
 
  return compat;
 
}
 
}
 
 
 
 
 
 
 
/* Fill the buffer with zero or nop instruction if CODE is TRUE.  Use
 
 
 
   multi byte nop instructions if LONG_NOP is TRUE.  */
 
 
 
 
 
 
 
static void *
 
 
 
bfd_arch_i386_fill (bfd_size_type count, bfd_boolean code,
 
 
 
                    bfd_boolean long_nop)
 
 
 
{
 
 
 
  /* nop */
 
 
 
  static const char nop_1[] = { 0x90 };
 
 
 
  /* xchg %ax,%ax */
 
 
 
  static const char nop_2[] = { 0x66, 0x90 };
 
 
 
  /* nopl (%[re]ax) */
 
 
 
  static const char nop_3[] = { 0x0f, 0x1f, 0x00 };
 
 
 
  /* nopl 0(%[re]ax) */
 
 
 
  static const char nop_4[] = { 0x0f, 0x1f, 0x40, 0x00 };
 
 
 
  /* nopl 0(%[re]ax,%[re]ax,1) */
 
 
 
  static const char nop_5[] = { 0x0f, 0x1f, 0x44, 0x00, 0x00 };
 
 
 
  /* nopw 0(%[re]ax,%[re]ax,1) */
 
 
 
  static const char nop_6[] = { 0x66, 0x0f, 0x1f, 0x44, 0x00, 0x00 };
 
 
 
  /* nopl 0L(%[re]ax) */
 
 
 
  static const char nop_7[] = { 0x0f, 0x1f, 0x80, 0x00, 0x00, 0x00, 0x00 };
 
 
 
  /* nopl 0L(%[re]ax,%[re]ax,1) */
 
 
 
  static const char nop_8[] =
 
 
 
    { 0x0f, 0x1f, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00};
 
 
 
  /* nopw 0L(%[re]ax,%[re]ax,1) */
 
 
 
  static const char nop_9[] =
 
 
 
    { 0x66, 0x0f, 0x1f, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00 };
 
 
 
  /* nopw %cs:0L(%[re]ax,%[re]ax,1) */
 
 
 
  static const char nop_10[] =
 
 
 
    { 0x66, 0x2e, 0x0f, 0x1f, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00 };
 
 
 
  static const char *const nops[] =
 
 
 
    { nop_1, nop_2, nop_3, nop_4, nop_5,
 
 
 
      nop_6, nop_7, nop_8, nop_9, nop_10 };
 
 
 
  bfd_size_type nop_size = long_nop ? ARRAY_SIZE (nops) : 2;
 
 
 
 
 
 
 
  void *fill = bfd_malloc (count);
 
 
 
  if (fill == NULL)
 
 
 
    return fill;
 
 
 
 
 
 
 
  if (code)
 
 
 
    {
 
 
 
      bfd_byte *p = fill;
 
 
 
      while (count >= nop_size)
 
 
 
        {
 
 
 
          memcpy (p, nops[nop_size - 1], nop_size);
 
 
 
          p += nop_size;
 
 
 
          count -= nop_size;
 
 
 
        }
 
 
 
      if (count != 0)
 
 
 
        memcpy (p, nops[count - 1], count);
 
 
 
    }
 
 
 
  else
 
 
 
    memset (fill, 0, count);
 
 
 
 
 
 
 
  return fill;
 
 
 
}
 
 
 
 
 
 
 
/* Fill the buffer with zero or short nop instruction if CODE is TRUE.  */
 
 
 
 
 
 
 
void *
 
 
 
bfd_arch_i386_short_nop_fill (bfd_size_type count,
 
 
 
                              bfd_boolean is_bigendian ATTRIBUTE_UNUSED,
 
 
 
                              bfd_boolean code)
 
 
 
{
 
 
 
  return bfd_arch_i386_fill (count, code, FALSE);
 
 
 
}
 
 
 
 
 
 
 
/* Fill the buffer with zero or long nop instruction if CODE is TRUE.  */
 
 
 
 
 
 
 
static void *
 
 
 
bfd_arch_i386_long_nop_fill (bfd_size_type count,
 
 
 
                             bfd_boolean is_bigendian ATTRIBUTE_UNUSED,
 
 
 
                             bfd_boolean code)
 
 
 
{
 
 
 
  return bfd_arch_i386_fill (count, code, TRUE);
 
 
 
}
 
 
 
 
 
static const bfd_arch_info_type bfd_x64_32_arch_intel_syntax =
 
static const bfd_arch_info_type bfd_x64_32_arch_intel_syntax =
 
{
 
{
 
  64, /* 64 bits in a word */
 
  64, /* 64 bits in a word */
 
  64, /* 64 bits in an address */
 
  64, /* 64 bits in an address */
 
  8,  /* 8 bits in a byte */
 
  8,  /* 8 bits in a byte */
Line 49... Line 130... 
  "i386:x64-32:intel",
 
  "i386:x64-32:intel",
 
  3,
 
  3,
 
  FALSE,
 
  FALSE,
 
  bfd_i386_compatible,
 
  bfd_i386_compatible,
 
  bfd_default_scan,
 
  bfd_default_scan,
 
 
 
  bfd_arch_i386_long_nop_fill,
 
  0
 
  0
 
};
 
};
 
 
 
 
 
static const bfd_arch_info_type bfd_x86_64_arch_intel_syntax =
 
static const bfd_arch_info_type bfd_x86_64_arch_intel_syntax =
 
{
 
{
Line 65... Line 147... 
  "i386:x86-64:intel",
 
  "i386:x86-64:intel",
 
  3,
 
  3,
 
  FALSE,
 
  FALSE,
 
  bfd_i386_compatible,
 
  bfd_i386_compatible,
 
  bfd_default_scan,
 
  bfd_default_scan,
 
 
 
  bfd_arch_i386_long_nop_fill,
 
  &bfd_x64_32_arch_intel_syntax,
 
  &bfd_x64_32_arch_intel_syntax,
 
};
 
};
 
 
 
 
 
static const bfd_arch_info_type bfd_i386_arch_intel_syntax =
 
static const bfd_arch_info_type bfd_i386_arch_intel_syntax =
 
{
 
{
Line 81... Line 164... 
  "i386:intel",
 
  "i386:intel",
 
  3,
 
  3,
 
  TRUE,
 
  TRUE,
 
  bfd_i386_compatible,
 
  bfd_i386_compatible,
 
  bfd_default_scan,
 
  bfd_default_scan,
 
 
 
  bfd_arch_i386_short_nop_fill,
 
  &bfd_x86_64_arch_intel_syntax
 
  &bfd_x86_64_arch_intel_syntax
 
};
 
};
 
 
 
 
 
static const bfd_arch_info_type i8086_arch =
 
static const bfd_arch_info_type i8086_arch =
 
{
 
{
Line 97... Line 181... 
  "i8086",
 
  "i8086",
 
  3,
 
  3,
 
  FALSE,
 
  FALSE,
 
  bfd_i386_compatible,
 
  bfd_i386_compatible,
 
  bfd_default_scan,
 
  bfd_default_scan,
 
 
 
  bfd_arch_i386_short_nop_fill,
 
  &bfd_i386_arch_intel_syntax
 
  &bfd_i386_arch_intel_syntax
 
};
 
};
 
 
 
 
 
static const bfd_arch_info_type bfd_x64_32_arch =
 
static const bfd_arch_info_type bfd_x64_32_arch =
 
{
 
{
Line 113... Line 198... 
  "i386:x64-32",
 
  "i386:x64-32",
 
  3,
 
  3,
 
  FALSE,
 
  FALSE,
 
  bfd_i386_compatible,
 
  bfd_i386_compatible,
 
  bfd_default_scan,
 
  bfd_default_scan,
 
 
 
  bfd_arch_i386_long_nop_fill,
 
  &i8086_arch
 
  &i8086_arch
 
};
 
};
 
 
 
 
 
static const bfd_arch_info_type bfd_x86_64_arch =
 
static const bfd_arch_info_type bfd_x86_64_arch =
 
{
 
{
Line 129... Line 215... 
  "i386:x86-64",
 
  "i386:x86-64",
 
  3,
 
  3,
 
  FALSE,
 
  FALSE,
 
  bfd_i386_compatible,
 
  bfd_i386_compatible,
 
  bfd_default_scan,
 
  bfd_default_scan,
 
 
 
  bfd_arch_i386_long_nop_fill,
 
  &bfd_x64_32_arch
 
  &bfd_x64_32_arch
 
};
 
};
 
 
 
 
 
const bfd_arch_info_type bfd_i386_arch =
 
const bfd_arch_info_type bfd_i386_arch =
 
{
 
{
Line 145... Line 232... 
  "i386",
 
  "i386",
 
  3,
 
  3,
 
  TRUE,
 
  TRUE,
 
  bfd_i386_compatible,
 
  bfd_i386_compatible,
 
  bfd_default_scan,
 
  bfd_default_scan,
 
 
 
  bfd_arch_i386_short_nop_fill,
 
  &bfd_x86_64_arch
 
  &bfd_x86_64_arch
 
};
 
};
 
 
 
 
 
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