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2006-10-31 Paul Brook <paul@codesourcery.com> 

gas/
	* config/tc-arm.c (object_arch): New variable.
	(s_arm_object_arch): New function.
	(md_pseudo_table): Add object_arch.
	(aeabi_set_public_attributes): Obey object_arch.
	* doc/c-arm.texi: Document .object_arch.
This commit is contained in:
Paul Brook 2006-10-31 20:16:33 +00:00
parent 6e381ba0b0
commit 7a1d4c3893
3 changed files with 56 additions and 1 deletions
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9
gas/ChangeLog
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@ -1,3 +1,12 @@
2006-10-31 Paul Brook <paul@codesourcery.com>
gas/
* config/tc-arm.c (object_arch): New variable.
(s_arm_object_arch): New function.
(md_pseudo_table): Add object_arch.
(aeabi_set_public_attributes): Obey object_arch.
* doc/c-arm.texi: Document .object_arch.
2006-10-31 Mei Ligang <ligang@sunnorth.com.cn>
* tc-score.c (data_op2): Check invalid operands.

42
gas/config/tc-arm.c
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@ -155,6 +155,7 @@ static const arm_feature_set *mcpu_fpu_opt = NULL;
static const arm_feature_set *march_cpu_opt = NULL;
static const arm_feature_set *march_fpu_opt = NULL;
static const arm_feature_set *mfpu_opt = NULL;
static const arm_feature_set *object_arch = NULL;
/* Constants for known architecture features. */
static const arm_feature_set fpu_default = FPU_DEFAULT;
@ -3890,6 +3891,7 @@ bad:
#endif /* OBJ_ELF */
static void s_arm_arch (int);
static void s_arm_object_arch (int);
static void s_arm_cpu (int);
static void s_arm_fpu (int);
@ -3943,6 +3945,7 @@ const pseudo_typeS md_pseudo_table[] =
{ "syntax", s_syntax, 0 },
{ "cpu", s_arm_cpu, 0 },
{ "arch", s_arm_arch, 0 },
{ "object_arch", s_arm_object_arch, 0 },
{ "fpu", s_arm_fpu, 0 },
#ifdef OBJ_ELF
{ "word", s_arm_elf_cons, 4 },
@ -20236,7 +20239,13 @@ aeabi_set_public_attributes (void)
ARM_MERGE_FEATURE_SETS (flags, arm_arch_used, thumb_arch_used);
ARM_MERGE_FEATURE_SETS (flags, flags, *mfpu_opt);
ARM_MERGE_FEATURE_SETS (flags, flags, selected_cpu);
/*Allow the user to override the reported architecture. */
if (object_arch)
{
ARM_CLEAR_FEATURE (flags, flags, arm_arch_any);
ARM_MERGE_FEATURE_SETS (flags, flags, *object_arch);
}
tmp = flags;
arch = 0;
for (p = cpu_arch_ver; p->val; p++)
@ -20400,6 +20409,37 @@ s_arm_arch (int ignored ATTRIBUTE_UNUSED)
}
/* Parse a .object_arch directive. */
static void
s_arm_object_arch (int ignored ATTRIBUTE_UNUSED)
{
const struct arm_arch_option_table *opt;
char saved_char;
char *name;
name = input_line_pointer;
while (*input_line_pointer && !ISSPACE(*input_line_pointer))
input_line_pointer++;
saved_char = *input_line_pointer;
*input_line_pointer = 0;
/* Skip the first "all" entry. */
for (opt = arm_archs + 1; opt->name != NULL; opt++)
if (streq (opt->name, name))
{
object_arch = &opt->value;
*input_line_pointer = saved_char;
demand_empty_rest_of_line ();
return;
}
as_bad (_("unknown architecture `%s'\n"), name);
*input_line_pointer = saved_char;
ignore_rest_of_line ();
}
/* Parse a .fpu directive. */
static void

6
gas/doc/c-arm.texi
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@ -585,6 +585,12 @@ for the @option{-mcpu} commandline option.
Select the target architecture. Valid values for @var{name} are the same as
for the @option{-march} commandline option.
@cindex @code{.object_arch} directive, ARM
@item .object_arch @var{name}
Override the architecture recorded in the EABI object attribute section.
Valid values for @var{name} are the same as for the @code{.arch} directive.
Typically this is useful when code uses runtime detection of CPU features.
@cindex @code{.fpu} directive, ARM
@item .fpu @var{name}
Select the floating point unit to assemble for. Valid values for @var{name}