OpenE2K
/
glibc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
glibc/sysdeps/x86_64
History
H.J. Lu 402bf06952 x86: Optimize SSE2 memchr overflow calculation 
SSE2 memchr computes "edx + ecx - 16" where ecx is less than 16.  Use
"edx - (16 - ecx)", instead of satured math, to avoid possible addition
overflow.  This replaces

	add	%ecx, %edx
	sbb	%eax, %eax
	or	%eax, %edx
	sub	$16, %edx

with

	neg	%ecx
	add	$16, %ecx
	sub	%ecx, %edx

It is the same for x86_64, except for rcx/rdx, instead of ecx/edx.

	* sysdeps/i386/i686/multiarch/memchr-sse2.S (MEMCHR): Use
	"edx + ecx - 16" to avoid possible addition overflow.
	* sysdeps/x86_64/memchr.S (memchr): Likewise.
 		2017-05-19 10:48:45 -07:00
..
64 Move architecture shlib-versions files to Linux-specific directories. 2014-07-17 14:31:12 +00:00
fpu Suppress internal declarations for most of the testsuite. 2017-05-11 19:27:59 -04:00
multiarch Correct comments in x86_64/multiarch/memcmp.S 2017-05-18 14:02:02 -07:00
nptl Remove CALL_THREAD_FCT macro 2017-04-04 18:03:35 -03:00
x32 Remove CALL_THREAD_FCT macro 2017-04-04 18:03:35 -03:00
Implies Use x86-64 bits/byteswap.h for both i386 and x86_64 2012-05-30 14:13:18 -07:00
Makefile x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
Versions Work around old buggy program which cannot cope with memcpy semantics. 2011-04-01 19:38:21 -04:00
____longjmp_chk.S
…
__longjmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
_mcount.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
abort-instr.h
…
add_n.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
addmul_1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
atomic-machine.h Narrowing the visibility of libc-internal.h even further. 2017-03-01 20:33:46 -05:00
backtrace.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
bsd-_setjmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
bsd-setjmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
bzero.S
…
configure Require binutils 2.24 to build x86-64 glibc [BZ #20139] 2016-07-01 06:03:05 -07:00
configure.ac Require binutils 2.24 to build x86-64 glibc [BZ #20139] 2016-07-01 06:03:05 -07:00
crti.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
crtn.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-irel.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-lookupcfg.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-machine.h x86: Set dl_platform and dl_hwcap from CPU features [BZ #21391] 2017-05-03 13:44:35 -07:00
dl-procinfo.c Add sysdeps/x86/dl-procinfo.c 2017-04-10 12:01:45 -07:00
dl-runtime.c
…
dl-tls.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-tlsdesc.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-tlsdesc.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-trampoline.S x86-64: Improve branch predication in _dl_runtime_resolve_avx512_opt [BZ #21258] 2017-03-21 11:00:12 -07:00
dl-trampoline.h x86-64: Improve branch predication in _dl_runtime_resolve_avx512_opt [BZ #21258] 2017-03-21 11:00:12 -07:00
ffs.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ffsll.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
hp-timing.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
htonl.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ifuncmain8.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ifuncmod8.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
jmpbuf-offsets.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
jmpbuf-unwind.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
l10nflist.c Minor optimization of popcount in l10nflist 2011-08-11 14:07:04 -04:00
ldbl2mpn.c
…
ldsodefs.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
link-defines.sym Replace __int128 with __int128_t 2014-05-30 10:50:21 -07:00
locale-defines.sym Implement optimized strcaecmp for x86-64. 2010-07-30 00:14:04 -07:00
localplt.data Document and fix --enable-bind-now [BZ #21015] 2017-03-02 14:44:28 +01:00
lshift.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
machine-gmon.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memchr.S x86: Optimize SSE2 memchr overflow calculation 2017-05-19 10:48:45 -07:00
memcmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memcopy.h X86-64: Add dummy memcopy.h and wordcopy.c 2016-06-09 04:38:34 -07:00
memcpy.S X86-64: Remove previous default/SSE2/AVX2 memcpy/memmove 2016-06-08 13:58:08 -07:00
memcpy_chk.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memmove.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memmove_chk.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mempcpy.S X86-64: Remove previous default/SSE2/AVX2 memcpy/memmove 2016-06-08 13:58:08 -07:00
mempcpy_chk.S x86_64: fix static build of __mempcpy_chk for compilers defaulting to PIC/PIE 2017-03-15 16:10:05 -07:00
memrchr.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memset.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memset_chk.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memusage.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mp_clz_tab.c
…
mul_1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
preconfigure rename configure.in to configure.ac 2013-10-30 17:32:08 +10:00
preconfigure.ac rename configure.in to configure.ac 2013-10-30 17:32:08 +10:00
rawmemchr.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
rshift.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sched_cpucount.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
setjmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
stack-aliasing.h Clean up stack-coloring macros. 2014-06-20 19:50:16 -07:00
stackguard-macros.h BZ #15754: CVE-2013-4788 2013-09-23 00:52:09 -04:00
stackinfo.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
start.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
stpcpy.S
…
strcasecmp.S Implement optimized strcaecmp for x86-64. 2010-07-30 00:14:04 -07:00
strcasecmp_l-nonascii.c Remove pre-ISO C support 2012-01-07 23:57:22 -05:00
strcasecmp_l.S Implement optimized strcaecmp for x86-64. 2010-07-30 00:14:04 -07:00
strcat.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strchr.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strchrnul.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strcmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strcpy.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strcspn.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strlen.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strncase.S Add optimized strncasecmp versions for x86-64. 2010-08-14 22:04:01 -07:00
strncase_l-nonascii.c Remove pre-ISO C support 2012-01-07 23:57:22 -05:00
strncase_l.S Add optimized strncasecmp versions for x86-64. 2010-08-14 22:04:01 -07:00
strncmp.S
…
strnlen.S Faster strlen on x64. 2013-03-18 07:39:12 +01:00
strpbrk.S
…
strrchr.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strspn.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sub_n.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
submul_1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tls-macros.h Split tls-macros.h into sysdeps directories. 2012-07-17 11:30:58 +00:00
tlsdesc.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tlsdesc.sym
…
tst-audit.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-audit3.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-audit4-aux.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-audit4.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-audit5.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-audit6.c Modify several tests to use test-skeleton.c 2015-07-15 15:10:23 +05:30
tst-audit7.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-audit10-aux.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-audit10.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-auditmod3a.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod3b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod4a.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod4b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod5a.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod5b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod6a.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod6b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod6c.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod7a.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod7b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod10a.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-auditmod10b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-avx-aux.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-avx.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-avx512-aux.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-avx512.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-avx512mod.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-avxmod.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-mallocalign1.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-quad1.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-quad1pie.c Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32 2012-05-10 17:05:06 -07:00
tst-quad2.c Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32 2012-05-10 17:05:06 -07:00
tst-quad2pie.c Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32 2012-05-10 17:05:06 -07:00
tst-quadmod1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-quadmod1pie.S Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32 2012-05-10 17:05:06 -07:00
tst-quadmod2.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-quadmod2pie.S Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32 2012-05-10 17:05:06 -07:00
tst-split-dynreloc.c Fix dynamic linker issue with bind-now 2015-08-19 05:37:01 -07:00
tst-split-dynreloc.lds Fix dynamic linker issue with bind-now 2015-08-19 05:37:01 -07:00
tst-sse.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-ssemod.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-stack-align.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wcschr.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wcscmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wcslen.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wcsrchr.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wordcopy.c X86-64: Add dummy memcopy.h and wordcopy.c 2016-06-09 04:38:34 -07:00