Exemplo n.º 1
0
static struct type *
amd64_register_type (struct gdbarch *gdbarch, int regnum)
{
  struct type *t;

  gdb_assert (regnum >= 0 && regnum < AMD64_NUM_REGS);

  /* ??? Unfortunately, amd64_init_abi is called too early, and so we
     cannot create the amd64_sse_type early enough to avoid any check
     at this point.  */
  t = *amd64_register_info[regnum].type;
  if (t != NULL)
    return t;

  gdb_assert (amd64_sse_type == NULL);

  t = init_composite_type ("__gdb_builtin_type_vec128i", TYPE_CODE_UNION);
  append_composite_type_field (t, "v4_float", builtin_type_v4_float);
  append_composite_type_field (t, "v2_double", builtin_type_v2_double);
  append_composite_type_field (t, "v16_int8", builtin_type_v16_int8);
  append_composite_type_field (t, "v8_int16", builtin_type_v8_int16);
  append_composite_type_field (t, "v4_int32", builtin_type_v4_int32);
  append_composite_type_field (t, "v2_int64", builtin_type_v2_int64);
  append_composite_type_field (t, "uint128", builtin_type_int128);

  TYPE_FLAGS (t) |= TYPE_FLAG_VECTOR;
  TYPE_NAME (t) = "builtin_type_vec128i";
      
  amd64_sse_type = t;
  return t;
}
Exemplo n.º 2
0
static void
build_builtin_type_frame_reg (void)
{
  /* $frame.  */
  if (builtin_type_frame_reg == NULL)
    {
#if 0
      struct frame
      {
	void *base;
      };
#endif
      builtin_type_frame_reg = init_composite_type ("frame", TYPE_CODE_STRUCT);
      append_composite_type_field (builtin_type_frame_reg, "base",
				   builtin_type_void_data_ptr);
    }
}
Exemplo n.º 3
0
static void
unpack_field_as_long_tests (struct gdbarch *arch)
{
  gdb_byte buffer[8];
  const struct builtin_type *bt = builtin_type (arch);
  struct type *struct_type = arch_composite_type (arch, "<<selftest>>",
						  TYPE_CODE_STRUCT);

  append_composite_type_field (struct_type, "field0", bt->builtin_int8);
  append_composite_type_field_aligned (struct_type, "field1",
				       bt->builtin_uint32, 4);

  memset (buffer, 0, sizeof (buffer));
  buffer[0] = 255;
  if (gdbarch_byte_order (arch) == BFD_ENDIAN_BIG)
    buffer[7] = 23;
  else
    buffer[4] = 23;

  SELF_CHECK (unpack_field_as_long (struct_type, buffer, 0) == -1);
  SELF_CHECK (unpack_field_as_long (struct_type, buffer, 1) == 23);
}
Exemplo n.º 4
0
static void
initialize_tdesc_arm_with_iwmmxt (void)
{
  struct target_desc *result = allocate_target_description ();
  struct tdesc_feature *feature;
  struct type *field_type, *type;

  set_tdesc_architecture (result, bfd_scan_arch ("iwmmxt"));

  feature = tdesc_create_feature (result, "org.gnu.gdb.arm.core");
  tdesc_create_reg (feature, "r0", 0, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "r1", 1, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "r2", 2, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "r3", 3, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "r4", 4, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "r5", 5, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "r6", 6, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "r7", 7, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "r8", 8, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "r9", 9, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "r10", 10, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "r11", 11, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "r12", 12, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sp", 13, 1, NULL, 32, "data_ptr");
  tdesc_create_reg (feature, "lr", 14, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "pc", 15, 1, NULL, 32, "code_ptr");
  tdesc_create_reg (feature, "cpsr", 25, 1, NULL, 32, "int");

  feature = tdesc_create_feature (result, "org.gnu.gdb.xscale.iwmmxt");
  field_type = tdesc_named_type (feature, "uint8");
  type = init_vector_type (field_type, 8);
  TYPE_NAME (type) = xstrdup ("iwmmxt_v8u8");
  tdesc_record_type (feature, type);

  field_type = tdesc_named_type (feature, "uint16");
  type = init_vector_type (field_type, 4);
  TYPE_NAME (type) = xstrdup ("iwmmxt_v4u16");
  tdesc_record_type (feature, type);

  field_type = tdesc_named_type (feature, "uint32");
  type = init_vector_type (field_type, 2);
  TYPE_NAME (type) = xstrdup ("iwmmxt_v2u32");
  tdesc_record_type (feature, type);

  type = init_composite_type (NULL, TYPE_CODE_UNION);
  TYPE_NAME (type) = xstrdup ("iwmmxt_vec64i");
  field_type = tdesc_named_type (feature, "iwmmxt_v8u8");
  append_composite_type_field (type, xstrdup ("u8"), field_type);
  field_type = tdesc_named_type (feature, "iwmmxt_v4u16");
  append_composite_type_field (type, xstrdup ("u16"), field_type);
  field_type = tdesc_named_type (feature, "iwmmxt_v2u32");
  append_composite_type_field (type, xstrdup ("u32"), field_type);
  field_type = tdesc_named_type (feature, "uint64");
  append_composite_type_field (type, xstrdup ("u64"), field_type);
  TYPE_VECTOR (type) = 1;
  tdesc_record_type (feature, type);

  tdesc_create_reg (feature, "wR0", 26, 1, NULL, 64, "iwmmxt_vec64i");
  tdesc_create_reg (feature, "wR1", 27, 1, NULL, 64, "iwmmxt_vec64i");
  tdesc_create_reg (feature, "wR2", 28, 1, NULL, 64, "iwmmxt_vec64i");
  tdesc_create_reg (feature, "wR3", 29, 1, NULL, 64, "iwmmxt_vec64i");
  tdesc_create_reg (feature, "wR4", 30, 1, NULL, 64, "iwmmxt_vec64i");
  tdesc_create_reg (feature, "wR5", 31, 1, NULL, 64, "iwmmxt_vec64i");
  tdesc_create_reg (feature, "wR6", 32, 1, NULL, 64, "iwmmxt_vec64i");
  tdesc_create_reg (feature, "wR7", 33, 1, NULL, 64, "iwmmxt_vec64i");
  tdesc_create_reg (feature, "wR8", 34, 1, NULL, 64, "iwmmxt_vec64i");
  tdesc_create_reg (feature, "wR9", 35, 1, NULL, 64, "iwmmxt_vec64i");
  tdesc_create_reg (feature, "wR10", 36, 1, NULL, 64, "iwmmxt_vec64i");
  tdesc_create_reg (feature, "wR11", 37, 1, NULL, 64, "iwmmxt_vec64i");
  tdesc_create_reg (feature, "wR12", 38, 1, NULL, 64, "iwmmxt_vec64i");
  tdesc_create_reg (feature, "wR13", 39, 1, NULL, 64, "iwmmxt_vec64i");
  tdesc_create_reg (feature, "wR14", 40, 1, NULL, 64, "iwmmxt_vec64i");
  tdesc_create_reg (feature, "wR15", 41, 1, NULL, 64, "iwmmxt_vec64i");
  tdesc_create_reg (feature, "wCSSF", 42, 1, "vector", 32, "int");
  tdesc_create_reg (feature, "wCASF", 43, 1, "vector", 32, "int");
  tdesc_create_reg (feature, "wCGR0", 44, 1, "vector", 32, "int");
  tdesc_create_reg (feature, "wCGR1", 45, 1, "vector", 32, "int");
  tdesc_create_reg (feature, "wCGR2", 46, 1, "vector", 32, "int");
  tdesc_create_reg (feature, "wCGR3", 47, 1, "vector", 32, "int");

  tdesc_arm_with_iwmmxt = result;
}
Exemplo n.º 5
0
static void
initialize_tdesc_powerpc_altivec64 (void)
{
  struct target_desc *result = allocate_target_description ();
  struct tdesc_feature *feature;
  struct type *field_type, *type;

  set_tdesc_architecture (result, bfd_scan_arch ("powerpc:common64"));

  feature = tdesc_create_feature (result, "org.gnu.gdb.power.core");
  tdesc_create_reg (feature, "r0", 0, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r1", 1, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r2", 2, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r3", 3, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r4", 4, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r5", 5, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r6", 6, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r7", 7, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r8", 8, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r9", 9, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r10", 10, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r11", 11, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r12", 12, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r13", 13, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r14", 14, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r15", 15, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r16", 16, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r17", 17, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r18", 18, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r19", 19, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r20", 20, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r21", 21, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r22", 22, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r23", 23, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r24", 24, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r25", 25, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r26", 26, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r27", 27, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r28", 28, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r29", 29, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r30", 30, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "r31", 31, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "pc", 64, 1, NULL, 64, "code_ptr");
  tdesc_create_reg (feature, "msr", 65, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "cr", 66, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "lr", 67, 1, NULL, 64, "code_ptr");
  tdesc_create_reg (feature, "ctr", 68, 1, NULL, 64, "uint64");
  tdesc_create_reg (feature, "xer", 69, 1, NULL, 32, "uint32");

  feature = tdesc_create_feature (result, "org.gnu.gdb.power.fpu");
  tdesc_create_reg (feature, "f0", 32, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f1", 33, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f2", 34, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f3", 35, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f4", 36, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f5", 37, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f6", 38, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f7", 39, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f8", 40, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f9", 41, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f10", 42, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f11", 43, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f12", 44, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f13", 45, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f14", 46, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f15", 47, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f16", 48, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f17", 49, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f18", 50, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f19", 51, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f20", 52, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f21", 53, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f22", 54, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f23", 55, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f24", 56, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f25", 57, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f26", 58, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f27", 59, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f28", 60, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f29", 61, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f30", 62, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f31", 63, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "fpscr", 70, 1, "float", 32, "int");

  feature = tdesc_create_feature (result, "org.gnu.gdb.power.altivec");
  field_type = tdesc_named_type (feature, "ieee_single");
  type = init_vector_type (field_type, 4);
  TYPE_NAME (type) = xstrdup ("v4f");
  tdesc_record_type (feature, type);

  field_type = tdesc_named_type (feature, "int32");
  type = init_vector_type (field_type, 4);
  TYPE_NAME (type) = xstrdup ("v4i32");
  tdesc_record_type (feature, type);

  field_type = tdesc_named_type (feature, "int16");
  type = init_vector_type (field_type, 8);
  TYPE_NAME (type) = xstrdup ("v8i16");
  tdesc_record_type (feature, type);

  field_type = tdesc_named_type (feature, "int8");
  type = init_vector_type (field_type, 16);
  TYPE_NAME (type) = xstrdup ("v16i8");
  tdesc_record_type (feature, type);

  type = init_composite_type (NULL, TYPE_CODE_UNION);
  TYPE_NAME (type) = xstrdup ("vec128");
  field_type = tdesc_named_type (feature, "uint128");
  append_composite_type_field (type, xstrdup ("uint128"), field_type);
  field_type = tdesc_named_type (feature, "v4f");
  append_composite_type_field (type, xstrdup ("v4_float"), field_type);
  field_type = tdesc_named_type (feature, "v4i32");
  append_composite_type_field (type, xstrdup ("v4_int32"), field_type);
  field_type = tdesc_named_type (feature, "v8i16");
  append_composite_type_field (type, xstrdup ("v8_int16"), field_type);
  field_type = tdesc_named_type (feature, "v16i8");
  append_composite_type_field (type, xstrdup ("v16_int8"), field_type);
  TYPE_VECTOR (type) = 1;
  tdesc_record_type (feature, type);

  tdesc_create_reg (feature, "vr0", 71, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr1", 72, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr2", 73, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr3", 74, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr4", 75, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr5", 76, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr6", 77, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr7", 78, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr8", 79, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr9", 80, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr10", 81, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr11", 82, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr12", 83, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr13", 84, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr14", 85, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr15", 86, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr16", 87, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr17", 88, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr18", 89, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr19", 90, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr20", 91, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr21", 92, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr22", 93, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr23", 94, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr24", 95, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr25", 96, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr26", 97, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr27", 98, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr28", 99, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr29", 100, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr30", 101, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr31", 102, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vscr", 103, 1, "vector", 32, "int");
  tdesc_create_reg (feature, "vrsave", 104, 1, "vector", 32, "int");

  tdesc_powerpc_altivec64 = result;
}
Exemplo n.º 6
0
struct type *
linux_get_siginfo_type (struct gdbarch *gdbarch)
{
  struct type *int_type, *uint_type, *long_type, *void_ptr_type;
  struct type *uid_type, *pid_type;
  struct type *sigval_type, *clock_type;
  struct type *siginfo_type, *sifields_type;
  struct type *type;
  
  /* TODO: muck around in gdbtypes.[ch] until this all works: */

  int_type = arch_integer_type(gdbarch, gdbarch_int_bit(gdbarch),
			       0, "int");
  uint_type = arch_integer_type(gdbarch, gdbarch_int_bit(gdbarch),
				1, "unsigned int");
  long_type = arch_integer_type(gdbarch, gdbarch_long_bit(gdbarch),
				0, "long");
  void_ptr_type = lookup_pointer_type(get_builtin_type(gdbarch)->builtin_void);

  /* sigval_t */
  sigval_type = arch_composite_type(gdbarch, NULL, TYPE_CODE_UNION);
  TYPE_NAME(sigval_type) = xstrdup("sigval_t");
  append_composite_type_field(sigval_type, "sival_int", int_type);
  append_composite_type_field(sigval_type, "sival_ptr", void_ptr_type);

  /* __pid_t */
  pid_type = arch_type(gdbarch, TYPE_CODE_TYPEDEF, TYPE_LENGTH(int_type),
		       xstrdup("__pid_t"));
  TYPE_TARGET_TYPE(pid_type) = int_type;
  TYPE_TARGET_STUB(pid_type) = (struct type *)1;

  /* __uid_t */
  uid_type = arch_type(gdbarch, TYPE_CODE_TYPEDEF, TYPE_LENGTH(uint_type),
		       xstrdup("__uid_t"));
  TYPE_TARGET_TYPE(uid_type) = uint_type;
  TYPE_TARGET_STUB(uid_type) = (struct type *)1;

  /* __clock_t */
  clock_type = arch_type(gdbarch, TYPE_CODE_TYPEDEF, TYPE_LENGTH(long_type),
			 xstrdup("__clock_t"));
  TYPE_TARGET_TYPE(clock_type) = long_type;
  TYPE_TARGET_STUB(clock_type) = (struct type *)1;

  /* _sifields */
  sifields_type = arch_composite_type(gdbarch, NULL, TYPE_CODE_UNION);

  {
    const int si_max_size = 128;
    int si_pad_size;
    int size_of_int = (gdbarch_int_bit(gdbarch) / HOST_CHAR_BIT);

    /* _pad */
    if (gdbarch_ptr_bit(gdbarch) == 64)
      si_pad_size = ((si_max_size / size_of_int) - 4);
    else
      si_pad_size = ((si_max_size / size_of_int) - 3);
    append_composite_type_field(sifields_type, "_pad",
				init_vector_type(int_type, si_pad_size));
  }

  /* _kill */
  type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
  append_composite_type_field (type, "si_pid", pid_type);
  append_composite_type_field (type, "si_uid", uid_type);
  append_composite_type_field (sifields_type, "_kill", type);

  /* _timer */
  type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
  append_composite_type_field (type, "si_tid", int_type);
  append_composite_type_field (type, "si_overrun", int_type);
  append_composite_type_field (type, "si_sigval", sigval_type);
  append_composite_type_field (sifields_type, "_timer", type);

  /* _rt */
  type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
  append_composite_type_field (type, "si_pid", pid_type);
  append_composite_type_field (type, "si_uid", uid_type);
  append_composite_type_field (type, "si_sigval", sigval_type);
  append_composite_type_field (sifields_type, "_rt", type);

  /* _sigchld */
  type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
  append_composite_type_field (type, "si_pid", pid_type);
  append_composite_type_field (type, "si_uid", uid_type);
  append_composite_type_field (type, "si_status", int_type);
  append_composite_type_field (type, "si_utime", clock_type);
  append_composite_type_field (type, "si_stime", clock_type);
  append_composite_type_field (sifields_type, "_sigchld", type);

  /* _sigfault */
  type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
  append_composite_type_field (type, "si_addr", void_ptr_type);
  append_composite_type_field (sifields_type, "_sigfault", type);

  /* _sigpoll */
  type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
  append_composite_type_field (type, "si_band", long_type);
  append_composite_type_field (type, "si_fd", int_type);
  append_composite_type_field (sifields_type, "_sigpoll", type);

  /* struct siginfo */
  siginfo_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
  TYPE_NAME (siginfo_type) = xstrdup ("siginfo");
  append_composite_type_field (siginfo_type, "si_signo", int_type);
  append_composite_type_field (siginfo_type, "si_errno", int_type);
  append_composite_type_field (siginfo_type, "si_code", int_type);
  append_composite_type_field_aligned (siginfo_type,
				       "_sifields", sifields_type,
				       TYPE_LENGTH (long_type));

  return siginfo_type;
}
static void
initialize_tdesc_powerpc_7400 (void)
{
  struct target_desc *result = allocate_target_description ();
  struct tdesc_feature *feature;
  struct type *field_type, *type;

  feature = tdesc_create_feature (result, "org.gnu.gdb.power.core");
  tdesc_create_reg (feature, "r0", 0, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r1", 1, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r2", 2, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r3", 3, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r4", 4, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r5", 5, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r6", 6, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r7", 7, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r8", 8, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r9", 9, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r10", 10, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r11", 11, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r12", 12, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r13", 13, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r14", 14, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r15", 15, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r16", 16, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r17", 17, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r18", 18, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r19", 19, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r20", 20, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r21", 21, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r22", 22, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r23", 23, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r24", 24, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r25", 25, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r26", 26, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r27", 27, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r28", 28, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r29", 29, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r30", 30, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "r31", 31, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "pc", 64, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "msr", 65, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "cr", 66, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "lr", 67, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "ctr", 68, 1, NULL, 32, "uint32");
  tdesc_create_reg (feature, "xer", 69, 1, NULL, 32, "uint32");

  feature = tdesc_create_feature (result, "org.gnu.gdb.power.fpu");
  tdesc_create_reg (feature, "f0", 32, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f1", 33, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f2", 34, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f3", 35, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f4", 36, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f5", 37, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f6", 38, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f7", 39, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f8", 40, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f9", 41, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f10", 42, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f11", 43, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f12", 44, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f13", 45, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f14", 46, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f15", 47, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f16", 48, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f17", 49, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f18", 50, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f19", 51, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f20", 52, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f21", 53, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f22", 54, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f23", 55, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f24", 56, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f25", 57, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f26", 58, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f27", 59, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f28", 60, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f29", 61, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f30", 62, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "f31", 63, 1, NULL, 64, "ieee_double");
  tdesc_create_reg (feature, "fpscr", 70, 1, "float", 32, "int");

  feature = tdesc_create_feature (result, "OEA");
  tdesc_create_reg (feature, "sr0", 71, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sr1", 72, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sr2", 73, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sr3", 74, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sr4", 75, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sr5", 76, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sr6", 77, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sr7", 78, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sr8", 79, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sr9", 80, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sr10", 81, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sr11", 82, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sr12", 83, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sr13", 84, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sr14", 85, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sr15", 86, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "pvr", 87, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "ibat0u", 88, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "ibat0l", 89, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "ibat1u", 90, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "ibat1l", 91, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "ibat2u", 92, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "ibat2l", 93, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "ibat3u", 94, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "ibat3l", 95, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "dbat0u", 96, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "dbat0l", 97, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "dbat1u", 98, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "dbat1l", 99, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "dbat2u", 100, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "dbat2l", 101, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "dbat3u", 102, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "dbat3l", 103, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sdr1", 104, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "asr", 105, 1, NULL, 64, "int");
  tdesc_create_reg (feature, "dar", 106, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "dsisr", 107, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sprg0", 108, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sprg1", 109, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sprg2", 110, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "sprg3", 111, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "srr0", 112, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "srr1", 113, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "tbl", 114, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "tbu", 115, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "dec", 116, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "dabr", 117, 1, NULL, 32, "int");
  tdesc_create_reg (feature, "ear", 118, 1, NULL, 32, "int");

  feature = tdesc_create_feature (result, "org.gnu.gdb.power.altivec");
  field_type = tdesc_named_type (feature, "ieee_single");
  type = init_vector_type (field_type, 4);
  TYPE_NAME (type) = xstrdup ("v4f");
  tdesc_record_type (feature, type);

  field_type = tdesc_named_type (feature, "int32");
  type = init_vector_type (field_type, 4);
  TYPE_NAME (type) = xstrdup ("v4i32");
  tdesc_record_type (feature, type);

  field_type = tdesc_named_type (feature, "int16");
  type = init_vector_type (field_type, 8);
  TYPE_NAME (type) = xstrdup ("v8i16");
  tdesc_record_type (feature, type);

  field_type = tdesc_named_type (feature, "int8");
  type = init_vector_type (field_type, 16);
  TYPE_NAME (type) = xstrdup ("v16i8");
  tdesc_record_type (feature, type);

  type = init_composite_type (NULL, TYPE_CODE_UNION);
  TYPE_NAME (type) = xstrdup ("vec128");
  field_type = tdesc_named_type (feature, "uint128");
  append_composite_type_field (type, xstrdup ("uint128"), field_type);
  field_type = tdesc_named_type (feature, "v4f");
  append_composite_type_field (type, xstrdup ("v4_float"), field_type);
  field_type = tdesc_named_type (feature, "v4i32");
  append_composite_type_field (type, xstrdup ("v4_int32"), field_type);
  field_type = tdesc_named_type (feature, "v8i16");
  append_composite_type_field (type, xstrdup ("v8_int16"), field_type);
  field_type = tdesc_named_type (feature, "v16i8");
  append_composite_type_field (type, xstrdup ("v16_int8"), field_type);
  TYPE_FLAGS (type) |= TYPE_FLAG_VECTOR;
  tdesc_record_type (feature, type);

  tdesc_create_reg (feature, "vr0", 119, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr1", 120, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr2", 121, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr3", 122, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr4", 123, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr5", 124, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr6", 125, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr7", 126, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr8", 127, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr9", 128, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr10", 129, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr11", 130, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr12", 131, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr13", 132, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr14", 133, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr15", 134, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr16", 135, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr17", 136, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr18", 137, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr19", 138, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr20", 139, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr21", 140, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr22", 141, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr23", 142, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr24", 143, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr25", 144, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr26", 145, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr27", 146, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr28", 147, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr29", 148, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr30", 149, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vr31", 150, 1, NULL, 128, "vec128");
  tdesc_create_reg (feature, "vscr", 151, 1, "vector", 32, "int");
  tdesc_create_reg (feature, "vrsave", 152, 1, "vector", 32, "int");

  tdesc_powerpc_7400 = result;
}