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Use PIC only if SHARED is defined. 

For ia32, we can avoid PIC in IFUNC functions in static library.
This commit is contained in:
H.J. Lu 2009-08-08 10:29:29 -07:00 committed by Ulrich Drepper
parent a3d4298d83
commit fc1870e6a4
3 changed files with 36 additions and 0 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2009-08-07 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/i386/i686/multiarch/strcspn.S (STRCSPN): Use PIC
only if SHARED is defined.
* sysdeps/i386/i686/multiarch/strspn.S (strspn): Likewise.
2009-08-03 Jim Meyering <meyering@redhat.com> 2009-08-03 Jim Meyering <meyering@redhat.com>
* sysdeps/i386/configure.in: Use AC_HEADER_CHECK. * sysdeps/i386/configure.in: Use AC_HEADER_CHECK.

15
sysdeps/i386/i686/multiarch/strcspn.S
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@ -42,6 +42,7 @@
define multiple versions for strpbrk in static library since we define multiple versions for strpbrk in static library since we
need strpbrk before the initialization happened. */ need strpbrk before the initialization happened. */
#if (defined SHARED || !defined USE_AS_STRPBRK) && !defined NOT_IN_libc #if (defined SHARED || !defined USE_AS_STRPBRK) && !defined NOT_IN_libc
# ifdef SHARED
.section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits .section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits
.globl __i686.get_pc_thunk.bx .globl __i686.get_pc_thunk.bx
.hidden __i686.get_pc_thunk.bx .hidden __i686.get_pc_thunk.bx
@ -71,6 +72,20 @@ ENTRY(STRCSPN)
cfi_restore (ebx) cfi_restore (ebx)
ret ret
END(STRCSPN) END(STRCSPN)
# else
.text
ENTRY(STRCSPN)
.type STRCSPN, @gnu_indirect_function
cmpl $0, KIND_OFFSET+__cpu_features
jne 1f
call __init_cpu_features
1: leal STRCSPN_IA32, %eax
testl $(1<<20), CPUID_OFFSET+COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_ECX_OFFSET+__cpu_features
jz 2f
leal STRCSPN_SSE42, %eax
2: ret
END(STRCSPN)
# endif
# undef ENTRY # undef ENTRY
# define ENTRY(name) \ # define ENTRY(name) \

15
sysdeps/i386/i686/multiarch/strspn.S
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@ -27,6 +27,7 @@
/* Define multiple versions only for the definition in libc. */ /* Define multiple versions only for the definition in libc. */
#ifndef NOT_IN_libc #ifndef NOT_IN_libc
# ifdef SHARED
.section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits .section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits
.globl __i686.get_pc_thunk.bx .globl __i686.get_pc_thunk.bx
.hidden __i686.get_pc_thunk.bx .hidden __i686.get_pc_thunk.bx
@ -56,6 +57,20 @@ ENTRY(strspn)
cfi_restore (ebx) cfi_restore (ebx)
ret ret
END(strspn) END(strspn)
# else
.text
ENTRY(strspn)
.type strspn, @gnu_indirect_function
cmpl $0, KIND_OFFSET+__cpu_features
jne 1f
call __init_cpu_features
1: leal __strspn_ia32, %eax
testl $(1<<20), CPUID_OFFSET+COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_ECX_OFFSET+__cpu_features
jz 2f
leal __strspn_sse42, %eax
2: ret
END(strspn)
# endif
# undef ENTRY # undef ENTRY
# define ENTRY(name) \ # define ENTRY(name) \