procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

tm.texi.in (TARGET_ASM_MERGEABLE_RODATA_PREFIX): Add hook.

Browse source 
* doc/tm.texi.in (TARGET_ASM_MERGEABLE_RODATA_PREFIX): Add hook.
	* doc/tm.texi: Regenerate.
	* target.def (mergeable_rodata_prefix: New defhookpod.
	* varasm.c (mergeable_string_section, mergeable_constant_section):
	Use it. Allocate name with alloca.

From-SVN: r176235
This commit is contained in:
Bernd Schmidt 2011-07-13 13:32:57 +00:00 • committed by Bernd Schmidt
parent cb77b6cf1f
commit 727a65e6fc
5 changed files with 32 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
gcc/ChangeLog
View file

@ -1,3 +1,11 @@
2011-07-13 Bernd Schmidt <bernds@codesourcery.com>
* doc/tm.texi.in (TARGET_ASM_MERGEABLE_RODATA_PREFIX): Add hook.
* doc/tm.texi: Regenerate.
* target.def (mergeable_rodata_prefix: New defhookpod.
* varasm.c (mergeable_string_section, mergeable_constant_section):
Use it. Allocate name with alloca.
2011-07-13 H.J. Lu <hongjiu.lu@intel.com>
* doc/invoke.texi (x86): Remove -mfused-madd and add -mfma.

6
gcc/doc/tm.texi
View file

@ -7050,6 +7050,12 @@ if function is in @code{.text.name}, and the normal readonly-data section
otherwise.
@end deftypefn
@deftypevr {Target Hook} {const char *} TARGET_ASM_MERGEABLE_RODATA_PREFIX
Usually, the compiler uses the prefix @code{".rodata"} to construct
section names for mergeable constant data. Define this macro to override
the string if a different section name should be used.
@end deftypevr
@deftypefn {Target Hook} {section *} TARGET_ASM_SELECT_RTX_SECTION (enum machine_mode @var{mode}, rtx @var{x}, unsigned HOST_WIDE_INT @var{align})
Return the section into which a constant @var{x}, of mode @var{mode},
should be placed. You can assume that @var{x} is some kind of

2
gcc/doc/tm.texi.in
View file

@ -6984,6 +6984,8 @@ if function is in @code{.text.name}, and the normal readonly-data section
otherwise.
@end deftypefn
@hook TARGET_ASM_MERGEABLE_RODATA_PREFIX
@hook TARGET_ASM_SELECT_RTX_SECTION
Return the section into which a constant @var{x}, of mode @var{mode},
should be placed. You can assume that @var{x} is some kind of

9
gcc/target.def
View file

@ -296,6 +296,15 @@ DEFHOOK
section *, (tree decl),
default_function_rodata_section)
/* Nonnull if the target wants to override the default ".rodata" prefix
for mergeable data sections. */
DEFHOOKPOD
(mergeable_rodata_prefix,
"Usually, the compiler uses the prefix @code{\".rodata\"} to construct\n\
section names for mergeable constant data. Define this macro to override\n\
the string if a different section name should be used.",
const char *, ".rodata")
/* Output a constructor for a symbol with a given priority. */
DEFHOOK
(constructor,

12
gcc/varasm.c
View file

@ -742,7 +742,8 @@ mergeable_string_section (tree decl ATTRIBUTE_UNUSED,
const char *str;
HOST_WIDE_INT i;
int j, unit;
char name[30];
const char *prefix = targetm.asm_out.mergeable_rodata_prefix;
char *name = (char *) alloca (strlen (prefix) + 30);
mode = TYPE_MODE (TREE_TYPE (TREE_TYPE (decl)));
modesize = GET_MODE_BITSIZE (mode);
@ -766,8 +767,8 @@ mergeable_string_section (tree decl ATTRIBUTE_UNUSED,
}
if (i == len - unit)
{
sprintf (name, ".rodata.str%d.%d", modesize / 8,
(int) (align / 8));
sprintf (name, "%s.str%d.%d", prefix,
modesize / 8, (int) (align / 8));
flags |= (modesize / 8) | SECTION_MERGE | SECTION_STRINGS;
return get_section (name, flags, NULL);
}
@ -794,9 +795,10 @@ mergeable_constant_section (enum machine_mode mode ATTRIBUTE_UNUSED,
&& align <= 256
&& (align & (align - 1)) == 0)
{
char name[24];
const char *prefix = targetm.asm_out.mergeable_rodata_prefix;
char *name = (char *) alloca (strlen (prefix) + 30);
sprintf (name, ".rodata.cst%d", (int) (align / 8));
sprintf (name, "%s.cst%d", prefix, (int) (align / 8));
flags |= (align / 8) | SECTION_MERGE;
return get_section (name, flags, NULL);
}