glibc/sysdeps/i386
Adhemerval Zanella 23d27709a4 Fix i686 memchr for large input sizes
Similar to BZ#19387 and BZ#20971, both i686 memchr optimized assembly
implementations (memchr-sse2-bsf and memchr-sse2) do not handle the
size overflow correctly.

It is shown by the new tests added by commit 3daef2c8ee, where
both implementation fails with size as SIZE_MAX.

This patch uses a similar strategy used on 3daef2c8ee, where
saturared math is used for overflow case.

Checked on i686-linux-gnu.

	[BZ #21014]
	* sysdeps/i386/i686/multiarch/memchr-sse2-bsf.S (MEMCHR): Avoid overflow
	in pointer addition.
	* sysdeps/i386/i686/multiarch/memchr-sse2.S (MEMCHR): Likewise.
2017-01-02 17:52:51 -02:00
..
fpu Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
i586 Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
i686 Fix i686 memchr for large input sizes 2017-01-02 17:52:51 -02:00
i786 Also applying directories. 1999-01-24 10:39:22 +00:00
nptl Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sys Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
____longjmp_chk.S Add sigstack handling to Linux ____longjmp_chk on i386. 2009-07-30 21:50:14 -07:00
__longjmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
abort-instr.h update from main archive 961220 1996-12-21 04:13:58 +00:00
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
asm-syntax.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
atomic-machine.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
backtrace.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
bcopy.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
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 Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
cacheinfo.c Move sysdeps/x86_64/cacheinfo.c to sysdeps/x86 2016-05-08 08:49:18 -07:00
configure configure: fix test == usage 2016-04-09 20:05:13 -04:00
configure.ac configure: fix test == usage 2016-04-09 20:05:13 -04:00
crti.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
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Implies Use x86-64 bits/byteswap.h for both i386 and x86_64 2012-05-30 14:13:18 -07:00
init-arch.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
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link-defines.sym Preserve bound registers for pointer pass/return 2015-07-09 06:50:12 -07:00
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machine-gmon.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Makefile Compile the dynamic linker without stack protection [BZ #7065] 2016-12-26 10:08:48 +01:00
memchr.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memcmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memcopy.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
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memcpy.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
memmove.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
mempcpy_chk.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mempcpy.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
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memset.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 Update. 2002-03-14 20:48:50 +00:00
mul_1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
preconfigure Move base_machine and machine settings from configure.ac to sysdeps preconfigure fragments. 2014-06-25 17:52:56 +00:00
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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
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strtok_r.S Remove remaining bounded-pointers support from i386 .S files. 2013-02-21 22:21:52 +00:00
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sysdep.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tls-macros.h i386: Fix build by GCC 5.0 2014-12-30 11:37:41 -08:00
tlsdesc.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tlsdesc.sym Introduce TLS descriptors for i386 and x86_64. 2008-05-13 05:41:30 +00:00
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Versions Merge sysdeps/i386/elf/Versions into sysdeps/i386/Versions. 2012-03-19 21:02:40 +01:00