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Alex Butler 7b27c450c3 aarch64: MTE compatible strncmp 
Add support for MTE to strncmp. Regression tested with xcheck and benchmarked
with glibc's benchtests on the Cortex-A53, Cortex-A72, and Neoverse N1.

The existing implementation assumes that any access to the pages in which the
string resides is safe. This assumption is not true when MTE is enabled. This
patch updates the algorithm to ensure that accesses remain within the bounds
of an MTE tag (16-byte chunks) and improves overall performance.

Co-authored-by: Branislav Rankov <branislav.rankov@arm.com>
Co-authored-by: Wilco Dijkstra <wilco.dijkstra@arm.com>
(cherry picked from commit 03e1378f94)
 		2024-11-04 16:08:55 +00:00
..
aarch64 aarch64: MTE compatible strncmp 2024-11-04 16:08:55 +00:00
alpha Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
arm arm: CVE-2020-6096: Fix multiarch memcpy for negative length [BZ #25620] 2020-07-14 15:46:21 -04:00
csky Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
generic mips: Fix bracktrace result for signal frames 2020-03-30 23:18:26 +02:00
gnu Don't make errlist.o[s].d depend on errlist-compat.h 2024-05-09 20:08:33 -07:00
hppa Add new file missed in previous hppa commit. 2020-05-04 21:56:38 +02:00
htl htl: Add internal version of __pthread_mutex_timedlock 2020-01-13 20:41:07 +01:00
hurd Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
i386 x86: Check IFUNC definition in unrelocated executable [BZ #20019] 2021-01-13 14:02:11 -08:00
ia64 Linux: Use system call tables during build 2020-01-02 10:18:23 +01:00
ieee754 math/test-sinl-pseudo: Use stack protector only if available 2020-03-11 12:25:15 +01:00
init_array Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
m68k Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
mach htl: Add internal version of __pthread_mutex_timedlock 2020-01-13 20:41:07 +01:00
microblaze Linux: Use system call tables during build 2020-01-02 10:18:23 +01:00
mips MIPS: Fix circular definition of __LDBL_MANT_DIG__ in ieee754.h 2020-01-08 14:28:23 -05:00
nios2 Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
nptl nptl: Avoid using PTHREAD_MUTEX_DEFAULT in macro definition [BZ #25271] 2020-01-30 15:54:49 +01:00
posix getcwd: Set errno to ERANGE for size == 1 (CVE-2021-3999) 2022-08-18 00:14:28 +02:00
powerpc powerpc64: Workaround sigtramp vdso return call 2021-03-08 11:16:27 -03:00
pthread Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
riscv Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
s390 S390: Also check vector support in memmove ifunc-selector [BZ #27511] 2021-03-26 11:01:51 +01:00
sh sh: Add sh4 fpu Implies folder 2020-11-27 09:34:02 -03:00
sparc Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
unix Linux: Require properly configured /dev/pts for PTYs 2022-08-18 12:28:36 +02:00
wordsize-32 Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
wordsize-64 Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
x86 x86: Fix incorrect scope of setting `shared_per_thread` [BZ# 30745] 2023-09-11 22:47:46 -05:00
x86_64 x86_64: Optimize ffsll function code size. 2024-02-08 09:00:17 -08:00