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Aurelien Jarno b9cbb8dd48 x86-64: Require BMI2 for AVX2 strncmp implementation
The AVX2 strncmp implementations uses the 'bzhi' instruction, which
belongs to the BMI2 CPU feature.

NB: It also uses the 'tzcnt' BMI1 instruction, but it is executed as BSF
as BSF if the CPU doesn't support TZCNT, and produces the same result
for non-zero input.

Partially fixes: b77b06e0e2 ("x86: Optimize strcmp-avx2.S")
Partially resolves: BZ #29611

Reviewed-by: Noah Goldstein  <goldstein.w.n@gmail.com>
(cherry picked from commit fc7de1d9b9)
2022-10-04 00:00:59 +02:00
argp argp: Avoid undefined behaviour when invoking qsort(). 2021-02-04 16:44:29 -03:00
assert Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
benchtests tests: use xmalloc to allocate implementation array 2021-07-28 17:45:19 +05:30
bits socket: Check lengths before advancing pointer in CMSG_NXTHDR 2022-08-22 18:59:26 +02:00
catgets catgets: Use 64 bit stat for __open_catalog (BZ# 29211) 2022-06-01 13:36:38 -03:00
ChangeLog.old Update ChangeLog.old/ChangeLog.23. 2021-08-01 21:33:43 -04:00
conform Use $(pie-default) with conformtest 2021-12-13 20:59:48 +05:30
crypt Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
csu csu: Implement and use _dl_early_allocate during static startup 2022-05-19 12:13:53 +02:00
ctype Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
debug misc: Fix rare fortify crash on wchar funcs. [BZ 29030] 2022-04-25 18:44:27 +05:30
dirent Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dlfcn dlfcn: Pass caller pointer to static dlopen implementation (bug 29446) 2022-08-04 20:57:18 +02:00
elf elf: Fix hwcaps string size overestimation 2022-09-15 15:44:14 +02:00
gmon Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
gnulib Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
grp Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
gshadow Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
hesiod Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
htl htl: Let libc call __pthread_mutex_{,try,un}lock 2021-07-13 23:36:58 +02:00
hurd hurd: Export _hurd_libc_proc_init 2021-04-12 00:23:36 +02:00
iconv gconv: Use 64-bit interfaces in gconv_parseconfdir (bug 29583) 2022-09-21 13:13:02 +02:00
iconvdata gconv: Do not emit spurious NUL character in ISO-2022-JP-3 (bug 28524) 2021-11-04 21:28:43 +01:00
include resolv: Add DNS packet parsing helpers geared towards wire format 2022-09-21 19:36:12 +02:00
inet inet: Use 64 bit stat for ruserpass (BZ# 29210) 2022-06-01 13:34:51 -03:00
intl intl/plural.y: Avoid conflicting declarations of yyerror and yylex 2021-12-23 13:48:04 +01:00
io linux: Fix fchmodat with AT_SYMLINK_NOFOLLOW for 64 bit time_t (BZ#29097) 2022-04-28 10:10:30 -03:00
libio Apply asm redirections in stdio.h before first use [BZ #27087] 2022-08-31 10:29:46 +02:00
locale localedef: Handle symbolic links when generating locale-archive 2022-03-03 11:58:03 +01:00
localedata Move malloc hooks into a compat DSO 2021-07-22 18:37:59 +05:30
login login: Move libutil into libc 2021-06-30 08:43:37 +02:00
mach Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
malloc malloc: Simplify implementation of __malloc_assert 2022-07-21 17:06:27 +02:00
manual x86: Add bounds x86_non_temporal_threshold 2022-07-18 20:45:21 -07:00
math Update floating-point feature test macro handling for C2X 2021-06-01 14:22:06 +00:00
mathvec Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
misc misc: Use 64 bit stat for getusershell (BZ# 29204) 2022-06-01 13:34:49 -03:00
nis nis: nis_local_group may read from __nisgroup[-1] (bug 28075) 2021-07-12 07:58:07 +02:00
nptl nptl: Add backoff mechanism to spinlock loop 2022-09-28 07:34:53 -07:00
nptl_db nptl_db: Re-use the ELF-to-abilist converter for ABI checking 2021-06-29 22:17:08 +02:00
nscd nscd: Fix netlink cache invalidation if epoll is used [BZ #29415] 2022-09-06 17:17:35 +02:00
nss nss: handle stat failure in check_reload_and_get (BZ #28752) 2022-06-13 18:15:36 -04:00
po po/nl.po: Update Dutch translation. 2021-08-01 20:52:28 -04:00
posix Fix deadlock when pthread_atfork handler calls pthread_atfork or dlclose 2022-05-30 12:38:32 +02:00
pwd Annotate additional APIs with GCC attribute access. 2021-05-06 11:01:05 -06:00
resolv resolv: Fix building tst-resolv-invalid-cname for earlier C standards 2022-09-21 19:37:24 +02:00
resource y2038: Add support for 64-bit time on legacy ABIs 2021-06-15 10:42:11 -03:00
rt librt: add test (bug 28213) 2021-08-16 11:35:35 +05:30
scripts csu: Implement and use _dl_early_allocate during static startup 2022-05-19 12:13:53 +02:00
setjmp nptl: Move __pthread_unwind_next into libc 2021-04-21 19:49:50 +02:00
shadow Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
signal y2038: Add support for 64-bit time on legacy ABIs 2021-06-15 10:42:11 -03:00
socket socket: Check lengths before advancing pointer in CMSG_NXTHDR 2022-08-22 18:59:26 +02:00
soft-fp soft-fp: Add __extendhfsf2/__extendhfdf2, __truncsfhf2/__truncdfhf2, __eqhf2/__nehf2 2021-07-07 08:01:32 -07:00
stdio-common Move malloc hooks into a compat DSO 2021-07-22 18:37:59 +05:30
stdlib stdlib: Fixup mbstowcs NULL __dst handling. [BZ #29279] 2022-08-15 23:14:15 +02:00
string x86: Shrink code size of memchr-avx2.S 2022-07-18 20:45:21 -07:00
sunrpc CVE-2022-23218: Buffer overflow in sunrpc svcunix_create (bug 28768) 2022-01-17 11:49:25 +01:00
support debug: Synchronize feature guards in fortified functions [BZ #28746] 2022-03-11 20:36:24 +05:30
sysdeps x86-64: Require BMI2 for AVX2 strncmp implementation 2022-10-04 00:00:59 +02:00
sysvipc Linux: Cleanups after librt move 2021-06-28 09:51:01 +02:00
termios Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
time timezone: handle truncated timezones from tzcode-2021d and later (BZ #28707) 2022-01-07 10:20:58 +01:00
timezone timezone: test-case for BZ #28707 2022-01-07 10:21:11 +01:00
wcsmbs Apply asm redirections in wchar.h before first use 2022-08-31 10:29:54 +02:00
wctype Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
.gitattributes Assume __NR_openat is always defined 2016-03-23 23:35:08 +01:00
.gitignore Add *.pyc to .gitignore 2015-05-18 15:26:26 +05:30
abi-tags Remove the bulk of the NaCl port. 2017-05-20 08:09:10 -04:00
aclocal.m4 configure: Replaced obsolete AC_TRY_COMPILE 2021-06-04 10:16:00 -03:00
config.h.in i386: Remove broken CAN_USE_REGISTER_ASM_EBP (bug 28771) 2022-01-13 15:21:32 +01:00
config.make.in Add pthread-in-libc, libpthread-routines-var, librt-routines-var 2021-05-03 08:13:32 +02:00
configure Default to --with-default-link=no (bug 25812) 2022-04-22 11:31:14 +02:00
configure.ac Default to --with-default-link=no (bug 25812) 2022-04-22 11:31:14 +02:00
COPYING Update to latest versions of GPL-2.0 and LGPL-2.1 2013-09-09 12:52:48 +10:00
COPYING.LIB Update to latest versions of GPL-2.0 and LGPL-2.1 2013-09-09 12:52:48 +10:00
extra-lib.mk Rename cppflags-iterator.mk to libof-iterator.mk, remove extra-modules.mk. 2017-05-09 07:06:29 -04:00
gen-locales.mk Improve gen-locales.mk and gen-locale.sh to make test files with @ options work 2018-02-27 17:01:57 +01:00
INSTALL INSTALL: Rephrase -with-default-link documentation 2022-04-26 15:27:43 +02:00
libc-abis riscv: support GNU indirect function 2021-01-10 21:25:13 -05:00
libof-iterator.mk Rename cppflags-iterator.mk to libof-iterator.mk, remove extra-modules.mk. 2017-05-09 07:06:29 -04:00
LICENSES Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
MAINTAINERS Add MAINTAINERS 2017-05-11 13:38:30 -04:00
Makeconfig Run conform/ tests using newly built libc 2021-12-13 09:07:38 +05:30
Makefile Install shared objects under their ABI names 2021-06-28 08:33:57 +02:00
Makefile.help Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Makefile.in New make target to only build benchmark binaries 2016-04-20 10:23:28 +05:30
Makerules debug: Autogenerate _FORTIFY_SOURCE tests 2022-03-11 20:36:24 +05:30
NEWS nss_dns: Rewrite getanswer_r to match getanswer_ptr (bug 12154, bug 29305) 2022-09-21 19:37:17 +02:00
o-iterator.mk Fri Mar 17 12:58:37 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> 1995-03-17 18:42:51 +00:00
README Documentation for the RISC-V 32-bit port 2020-08-27 08:17:44 -07:00
Rules Move malloc hooks into a compat DSO 2021-07-22 18:37:59 +05:30
shlib-versions nss: Do not mention NSS test modules in <gnu/lib-names.h> 2022-03-11 11:13:34 +01:00
test-skeleton.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
version.h Prepare for glibc 2.34 release. 2021-08-01 21:24:04 -04:00

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