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ARM: Clean up __libc_ifunc_impl_list

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This commit is contained in:
Roland McGrath 2013-06-18 10:11:02 -07:00
parent 18e5cc3a82
commit d7dffa6a55
2 changed files with 22 additions and 11 deletions
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6
ports/ChangeLog.arm
View File

@ -1,3 +1,9 @@
2013-06-18 Roland McGrath <roland@hack.frob.com>
* sysdeps/arm/armv7/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list)
[__ARM_NEON__]: Do not refer to HWCAP_ARM_NEON.
[!__SOFTFP__]: Do not refer to HWCAP_ARM_VFP.
2013-06-18 Joseph Myers <joseph@codesourcery.com>
* sysdeps/arm/fpu_control.h [!(_LIBC && !_LIBC_TEST) &&

27
ports/sysdeps/arm/armv7/multiarch/ifunc-impl-list.c
View File

@ -16,6 +16,7 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <stdbool.h>
#include <string.h>
#include <ldsodefs.h>
#include <sysdep.h>
@ -29,21 +30,25 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
size_t max)
{
size_t i = 0;
int hwcap;
hwcap = GLRO(dl_hwcap);
bool use_neon = true;
#ifdef __ARM_NEON__
# define __memcpy_neon memcpy
#else
use_neon = (GLRO(dl_hwcap) & HWCAP_ARM_NEON) != 0;
#endif
#ifndef __ARM_NEON__
bool use_vfp = true;
# ifdef __SOFTFP__
use_vfp = (GLRO(dl_hwcap) & HWCAP_ARM_VFP) != 0;
# endif
#endif
IFUNC_IMPL (i, name, memcpy,
IFUNC_IMPL_ADD (array, i, memcpy, hwcap & HWCAP_ARM_NEON,
#ifdef __ARM_NEON__
memcpy
#else
__memcpy_neon
#endif
)
IFUNC_IMPL_ADD (array, i, memcpy, use_neon, __memcpy_neon)
#ifndef __ARM_NEON__
IFUNC_IMPL_ADD (array, i, memcpy, hwcap & HWCAP_ARM_VFP,
__memcpy_vfp)
IFUNC_IMPL_ADD (array, i, memcpy, use_vfp, __memcpy_vfp)
#endif
IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_arm));