AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-11-22 13:00:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

Use PIC only if SHARED is defined.

Browse Source 
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
ChangeLog
View File

@ -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>
* sysdeps/i386/configure.in: Use AC_HEADER_CHECK.

15
sysdeps/i386/i686/multiarch/strcspn.S
View File

@ -42,6 +42,7 @@
define multiple versions for strpbrk in static library since we
need strpbrk before the initialization happened. */
#if (defined SHARED || !defined USE_AS_STRPBRK) && !defined NOT_IN_libc
# ifdef SHARED
.section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits
.globl __i686.get_pc_thunk.bx
.hidden __i686.get_pc_thunk.bx
@ -71,6 +72,20 @@ ENTRY(STRCSPN)
cfi_restore (ebx)
ret
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
# define ENTRY(name) \

15
sysdeps/i386/i686/multiarch/strspn.S
View File

@ -27,6 +27,7 @@
/* Define multiple versions only for the definition in libc. */
#ifndef NOT_IN_libc
# ifdef SHARED
.section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits
.globl __i686.get_pc_thunk.bx
.hidden __i686.get_pc_thunk.bx
@ -56,6 +57,20 @@ ENTRY(strspn)
cfi_restore (ebx)
ret
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
# define ENTRY(name) \