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11ffcacb64
glibc/sysdeps/x86_64/multiarch
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H.J. Lu 11ffcacb64 x86-64: Implement strcmp family IFUNC selectors in C 
Implement strcmp family IFUNC selectors in C.

All internal calls within libc.so can use IFUNC on x86-64 since unlike
x86, x86-64 supports PC-relative addressing to access the GOT entry so
that it can call via PLT without using an extra register.  For libc.a,
we can't use IFUNC for functions which are called before IFUNC has been
initialized.  Use IFUNC internally reduces the icache footprint since
libc.so and other codes in the process use the same implementations.
This patch uses IFUNC for strcmp family functions within libc.

	* sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add
	strcmp-sse2, strcmp-sse4_2, strncmp-sse2, strncmp-sse4_2,
	strcasecmp_l-sse2, strcasecmp_l-sse4_2, strcasecmp_l-avx,
	strncase_l-sse2, strncase_l-sse4_2 and strncase_l-avx.
	* sysdeps/x86_64/multiarch/ifunc-strcasecmp.h: New file.
	* sysdeps/x86_64/multiarch/strcasecmp.c: Likewise.
	* sysdeps/x86_64/multiarch/strcasecmp_l-avx.S: Likewise.
	* sysdeps/x86_64/multiarch/strcasecmp_l-sse2.S: Likewise.
	* sysdeps/x86_64/multiarch/strcasecmp_l-sse4_2.S: Likewise.
	* sysdeps/x86_64/multiarch/strcasecmp_l.c: Likewise.
	* sysdeps/x86_64/multiarch/strcmp-sse2.S: Likewise.
	* sysdeps/x86_64/multiarch/strcmp-sse4_2.S: Likewise.
	* sysdeps/x86_64/multiarch/strcmp.c: Likewise.
	* sysdeps/x86_64/multiarch/strncase.c: Likewise.
	* sysdeps/x86_64/multiarch/strncase_l-avx.S : Likewise.
	* sysdeps/x86_64/multiarch/strncase_l-sse2.S: Likewise.
	* sysdeps/x86_64/multiarch/strncase_l-sse4_2.S: Likewise.
	* sysdeps/x86_64/multiarch/strncase_l.c: Likewise.
	* sysdeps/x86_64/multiarch/strncmp-sse2.S: Likewise.
	* sysdeps/x86_64/multiarch/strncmp-sse4_2.S: Likewise.
	* sysdeps/x86_64/multiarch/strncmp.c: Likewise.
	* sysdeps/x86_64/multiarch/strcasecmp_l.S: Removed.
	* sysdeps/x86_64/multiarch/strcmp.S: Likewise.
	* sysdeps/x86_64/multiarch/strncase_l.S: Likewise.
	* sysdeps/x86_64/multiarch/strncmp.S: Likewise.
	* sysdeps/x86_64/multiarch/strcmp-sse42.S: Include <sysdep.h>.
	(STRCMP_SSE42): New.  Defined to __strcmp_sse42 if not defined.
	[USE_AS_STRCASECMP_L || USE_AS_STRNCASECMP_L]: Include
	"locale-defines.h".
	(UPDATE_STRNCMP_COUNTER): New.
	(SECTION): Likewise.
	(GLABEL): Likewise.
	(LABEL): Likewise.
	* sysdeps/x86_64/multiarch/strncmp-ssse3.S: Rewrite and enable
	for libc.a.
2017-06-21 12:11:06 -07:00
..
bcopy.S
ifunc-avx2.h x86-64: Optimize memchr/rawmemchr/wmemchr with SSE2/AVX2 2017-06-09 05:13:31 -07:00
ifunc-impl-list.c x86-64: Implement memcmp family IFUNC selectors in C 2017-06-15 08:49:57 -07:00
ifunc-memcmp.h x86-64: Implement memcmp family IFUNC selectors in C 2017-06-15 08:49:57 -07:00
ifunc-memmove.h x86-64: Implement memmove family IFUNC selectors in C 2017-06-14 12:11:10 -07:00
ifunc-memset.h x86-64: Implement memset family IFUNC selectors in C 2017-06-15 08:33:35 -07:00
ifunc-sse4_2.h x86-64: Implement strcspn/strpbrk/strspn IFUNC selectors in C 2017-06-15 08:59:05 -07:00
ifunc-strcasecmp.h x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
ifunc-unaligned-ssse3.h x86-64: Implement strcpy family IFUNC selectors in C 2017-06-12 09:06:09 -07:00
ifunc-wmemset.h x86-64: Rename wmemset.h to ifunc-wmemset.h 2017-06-07 14:48:34 -07:00
Makefile x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
memchr-avx2.S x86-64: Optimize memchr/rawmemchr/wmemchr with SSE2/AVX2 2017-06-09 05:13:31 -07:00
memchr-sse2.S x86-64: Optimize memchr/rawmemchr/wmemchr with SSE2/AVX2 2017-06-09 05:13:31 -07:00
memchr.c x86-64: Optimize memchr/rawmemchr/wmemchr with SSE2/AVX2 2017-06-09 05:13:31 -07:00
memcmp-avx2-movbe.S x86-64: Optimize memcmp/wmemcmp with AVX2 and MOVBE 2017-06-05 12:52:55 -07:00
memcmp-sse2.S x86-64: Implement memcmp family IFUNC selectors in C 2017-06-15 08:49:57 -07:00
memcmp-sse4.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memcmp-ssse3.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memcmp.c x86-64: Implement memcmp family IFUNC selectors in C 2017-06-15 08:49:57 -07:00
memcpy_chk-nonshared.S x86-64: Implement memmove family IFUNC selectors in C 2017-06-14 12:11:10 -07:00
memcpy_chk.c x86-64: Implement memmove family IFUNC selectors in C 2017-06-14 12:11:10 -07:00
memcpy-ssse3-back.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memcpy-ssse3.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memcpy.c x86-64: Implement memmove family IFUNC selectors in C 2017-06-14 12:11:10 -07:00
memmove_chk-nonshared.S x86-64: Implement memmove family IFUNC selectors in C 2017-06-14 12:11:10 -07:00
memmove_chk.c x86-64: Implement memmove family IFUNC selectors in C 2017-06-14 12:11:10 -07:00
memmove-avx512-no-vzeroupper.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memmove-avx512-unaligned-erms.S Require binutils 2.24 to build x86-64 glibc [BZ #20139] 2016-07-01 06:03:05 -07:00
memmove-avx-unaligned-erms.S X86-64: Use non-temporal store in memcpy on large data 2016-04-12 08:10:47 -07:00
memmove-sse2-unaligned-erms.S x86-64: Implement memmove family IFUNC selectors in C 2017-06-14 12:11:10 -07:00
memmove-ssse3-back.S
memmove-ssse3.S
memmove-vec-unaligned-erms.S x86-64: Implement memmove family IFUNC selectors in C 2017-06-14 12:11:10 -07:00
memmove.c x86-64: Implement memmove family IFUNC selectors in C 2017-06-14 12:11:10 -07:00
mempcpy_chk-nonshared.S x86-64: Implement memmove family IFUNC selectors in C 2017-06-14 12:11:10 -07:00
mempcpy_chk.c x86-64: Implement memmove family IFUNC selectors in C 2017-06-14 12:11:10 -07:00
mempcpy.c Fix fallout from bits/string.h removal. 2017-06-20 09:39:08 -04:00
memrchr-avx2.S x86-64: Optimize memrchr with AVX2 2017-06-09 05:44:41 -07:00
memrchr-sse2.S x86-64: Optimize memrchr with AVX2 2017-06-09 05:44:41 -07:00
memrchr.c x86-64: Optimize memrchr with AVX2 2017-06-09 05:44:41 -07:00
memset_chk-nonshared.S x86-64: Implement memset family IFUNC selectors in C 2017-06-15 08:33:35 -07:00
memset_chk.c x86-64: Implement memset family IFUNC selectors in C 2017-06-15 08:33:35 -07:00
memset-avx2-unaligned-erms.S x86-64: Optimize wmemset with SSE2/AVX2/AVX512 2017-06-05 11:09:59 -07:00
memset-avx512-no-vzeroupper.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memset-avx512-unaligned-erms.S x86-64: Optimize wmemset with SSE2/AVX2/AVX512 2017-06-05 11:09:59 -07:00
memset-sse2-unaligned-erms.S x86-64: Implement memset family IFUNC selectors in C 2017-06-15 08:33:35 -07:00
memset-vec-unaligned-erms.S x86-64: Implement memset family IFUNC selectors in C 2017-06-15 08:33:35 -07:00
memset.c x86-64: Implement memset family IFUNC selectors in C 2017-06-15 08:33:35 -07:00
rawmemchr-avx2.S x86-64: Optimize memchr/rawmemchr/wmemchr with SSE2/AVX2 2017-06-09 05:13:31 -07:00
rawmemchr-sse2.S Fix typo when undefining weak_alias 2017-06-19 14:56:40 +05:30
rawmemchr.c x86-64: Optimize memchr/rawmemchr/wmemchr with SSE2/AVX2 2017-06-09 05:13:31 -07:00
sched_cpucount.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
stpcpy-sse2-unaligned.S
stpcpy-sse2.S x86-64: Implement strcpy family IFUNC selectors in C 2017-06-12 09:06:09 -07:00
stpcpy-ssse3.S
stpcpy.c Fix fallout from bits/string.h removal. 2017-06-20 09:39:08 -04:00
stpncpy-c.c x86-64: Implement strcpy family IFUNC selectors in C 2017-06-12 09:06:09 -07:00
stpncpy-sse2-unaligned.S
stpncpy-ssse3.S
stpncpy.c x86-64: Implement strcpy family IFUNC selectors in C 2017-06-12 09:06:09 -07:00
strcasecmp_l-avx.S x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strcasecmp_l-sse2.S x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strcasecmp_l-sse4_2.S x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strcasecmp_l-ssse3.S
strcasecmp_l.c x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strcasecmp.c x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strcat-sse2-unaligned.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strcat-sse2.S x86-64: Implement strcat family IFUNC selectors in C 2017-06-15 08:56:59 -07:00
strcat-ssse3.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strcat.c x86-64: Implement strcat family IFUNC selectors in C 2017-06-15 08:56:59 -07:00
strchr-avx2.S x86-64: Optimize strchr/strchrnul/wcschr with AVX2 2017-06-09 05:42:29 -07:00
strchr-sse2-no-bsf.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strchr-sse2.S x86-64: Optimize strchr/strchrnul/wcschr with AVX2 2017-06-09 05:42:29 -07:00
strchr.c x86-64: Optimize strchr/strchrnul/wcschr with AVX2 2017-06-09 05:42:29 -07:00
strchrnul-avx2.S x86-64: Optimize strchr/strchrnul/wcschr with AVX2 2017-06-09 05:42:29 -07:00
strchrnul-sse2.S x86-64: Optimize strchr/strchrnul/wcschr with AVX2 2017-06-09 05:42:29 -07:00
strchrnul.c x86-64: Optimize strchr/strchrnul/wcschr with AVX2 2017-06-09 05:42:29 -07:00
strcmp-sse2-unaligned.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strcmp-sse2.S x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strcmp-sse4_2.S x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strcmp-sse42.S x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strcmp-ssse3.S
strcmp.c x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strcpy-sse2-unaligned.S Fix x86 strncat optimized implementation for large sizes 2017-01-03 14:24:53 -02:00
strcpy-sse2.S x86-64: Implement strcpy family IFUNC selectors in C 2017-06-12 09:06:09 -07:00
strcpy-ssse3.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strcpy.c x86-64: Implement strcpy family IFUNC selectors in C 2017-06-12 09:06:09 -07:00
strcspn-c.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strcspn-sse2.S x86-64: Implement strcspn/strpbrk/strspn IFUNC selectors in C 2017-06-15 08:59:05 -07:00
strcspn.c x86-64: Implement strcspn/strpbrk/strspn IFUNC selectors in C 2017-06-15 08:59:05 -07:00
strlen-avx2.S x86-64: Optimize strlen/strnlen/wcslen/wcsnlen with AVX2 2017-06-09 05:18:18 -07:00
strlen-sse2.S x86-64: Optimize strlen/strnlen/wcslen/wcsnlen with AVX2 2017-06-09 05:18:18 -07:00
strlen.c x86-64: Optimize strlen/strnlen/wcslen/wcsnlen with AVX2 2017-06-09 05:18:18 -07:00
strncase_l-avx.S x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strncase_l-sse2.S x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strncase_l-sse4_2.S x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strncase_l-ssse3.S
strncase_l.c x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strncase.c x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strncat-c.c Remove bits/string.h. 2017-06-20 08:21:24 -04:00
strncat-sse2-unaligned.S
strncat-ssse3.S
strncat.c x86-64: Implement strcat family IFUNC selectors in C 2017-06-15 08:56:59 -07:00
strncmp-sse2.S x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strncmp-sse4_2.S x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strncmp-ssse3.S x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strncmp.c x86-64: Implement strcmp family IFUNC selectors in C 2017-06-21 12:11:06 -07:00
strncpy-c.c x86-64: Implement strcpy family IFUNC selectors in C 2017-06-12 09:06:09 -07:00
strncpy-sse2-unaligned.S
strncpy-ssse3.S
strncpy.c x86-64: Implement strcpy family IFUNC selectors in C 2017-06-12 09:06:09 -07:00
strnlen-avx2.S x86-64: Optimize strlen/strnlen/wcslen/wcsnlen with AVX2 2017-06-09 05:18:18 -07:00
strnlen-sse2.S x86-64: Optimize strlen/strnlen/wcslen/wcsnlen with AVX2 2017-06-09 05:18:18 -07:00
strnlen.c x86-64: Optimize strlen/strnlen/wcslen/wcsnlen with AVX2 2017-06-09 05:18:18 -07:00
strpbrk-c.c x86-64: Implement strcspn/strpbrk/strspn IFUNC selectors in C 2017-06-15 08:59:05 -07:00
strpbrk-sse2.S x86-64: Implement strcspn/strpbrk/strspn IFUNC selectors in C 2017-06-15 08:59:05 -07:00
strpbrk.c x86-64: Implement strcspn/strpbrk/strspn IFUNC selectors in C 2017-06-15 08:59:05 -07:00
strrchr-avx2.S x86-64: Optimize strrchr/wcsrchr with AVX2 2017-06-09 05:45:52 -07:00
strrchr-sse2.S x86-64: Optimize strrchr/wcsrchr with AVX2 2017-06-09 05:45:52 -07:00
strrchr.c x86-64: Optimize strrchr/wcsrchr with AVX2 2017-06-09 05:45:52 -07:00
strspn-c.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strspn-sse2.S x86-64: Implement strcspn/strpbrk/strspn IFUNC selectors in C 2017-06-15 08:59:05 -07:00
strspn.c x86-64: Implement strcspn/strpbrk/strspn IFUNC selectors in C 2017-06-15 08:59:05 -07:00
strstr-sse2-unaligned.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strstr.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
test-multiarch.c Suppress internal declarations for most of the testsuite. 2017-05-11 19:27:59 -04:00
varshift.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
varshift.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wcschr-avx2.S x86-64: Optimize strchr/strchrnul/wcschr with AVX2 2017-06-09 05:42:29 -07:00
wcschr-sse2.S x86-64: Optimize strchr/strchrnul/wcschr with AVX2 2017-06-09 05:42:29 -07:00
wcschr.c x86-64: Optimize strchr/strchrnul/wcschr with AVX2 2017-06-09 05:42:29 -07:00
wcscpy-c.c
wcscpy-ssse3.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wcscpy.c x86-64: Implement wcscpy IFUNC selector in C 2017-06-15 08:57:52 -07:00
wcslen-avx2.S x86-64: Optimize strlen/strnlen/wcslen/wcsnlen with AVX2 2017-06-09 05:18:18 -07:00
wcslen-sse2.S x86-64: Optimize strlen/strnlen/wcslen/wcsnlen with AVX2 2017-06-09 05:18:18 -07:00
wcslen.c x86-64: Optimize strlen/strnlen/wcslen/wcsnlen with AVX2 2017-06-09 05:18:18 -07:00
wcsnlen-avx2.S x86-64: Optimize strlen/strnlen/wcslen/wcsnlen with AVX2 2017-06-09 05:18:18 -07:00
wcsnlen-c.c x86-64: Move wcsnlen.S to multiarch/wcsnlen-sse4_1.S 2017-06-06 06:12:32 -07:00
wcsnlen-sse4_1.S x86-64: Move wcsnlen.S to multiarch/wcsnlen-sse4_1.S 2017-06-06 06:12:32 -07:00
wcsnlen.c x86-64: Optimize strlen/strnlen/wcslen/wcsnlen with AVX2 2017-06-09 05:18:18 -07:00
wcsrchr-avx2.S x86-64: Optimize strrchr/wcsrchr with AVX2 2017-06-09 05:45:52 -07:00
wcsrchr-sse2.S x86-64: Optimize strrchr/wcsrchr with AVX2 2017-06-09 05:45:52 -07:00
wcsrchr.c x86-64: Optimize strrchr/wcsrchr with AVX2 2017-06-09 05:45:52 -07:00
wmemchr-avx2.S x86-64: Optimize memchr/rawmemchr/wmemchr with SSE2/AVX2 2017-06-09 05:13:31 -07:00
wmemchr-sse2.S x86-64: Optimize memchr/rawmemchr/wmemchr with SSE2/AVX2 2017-06-09 05:13:31 -07:00
wmemchr.c x86-64: Optimize memchr/rawmemchr/wmemchr with SSE2/AVX2 2017-06-09 05:13:31 -07:00
wmemcmp-avx2-movbe.S x86-64: Optimize memcmp/wmemcmp with AVX2 and MOVBE 2017-06-05 12:52:55 -07:00
wmemcmp-c.c
wmemcmp-sse4.S
wmemcmp-ssse3.S
wmemcmp.c x86-64: Implement memcmp family IFUNC selectors in C 2017-06-15 08:49:57 -07:00
wmemset_chk-nonshared.S x86-64: Implement memset family IFUNC selectors in C 2017-06-15 08:33:35 -07:00
wmemset_chk.c x86-64: Rename wmemset.h to ifunc-wmemset.h 2017-06-07 14:48:34 -07:00
wmemset.c x86-64: Implement memset family IFUNC selectors in C 2017-06-15 08:33:35 -07:00