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glibc/sysdeps/x86
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Noah Goldstein f446d90fe6 x86: Add Avoid_STOSB tunable to allow NT memset without ERMS 
The goal of this flag is to allow targets which don't prefer/have ERMS
to still access the non-temporal memset implementation.

There are 4 cases for tuning memset:
    1) `Avoid_STOSB && Avoid_Non_Temporal_Memset`
        - Memset with temporal stores
    2) `Avoid_STOSB && !Avoid_Non_Temporal_Memset`
        - Memset with temporal/non-temporal stores. Non-temporal path
          goes through `rep stosb` path. We accomplish this by setting
          `x86_rep_stosb_threshold` to
          `x86_memset_non_temporal_threshold`.
    3) `!Avoid_STOSB && Avoid_Non_Temporal_Memset`
        - Memset with temporal stores/`rep stosb`
    3) `!Avoid_STOSB && !Avoid_Non_Temporal_Memset`
        - Memset with temporal stores/`rep stosb`/non-temporal stores.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
2024-08-15 08:19:15 -07:00
..
bits
login: structs utmp, utmpx, lastlog _TIME_BITS independence (bug 30701)
2024-04-19 14:38:17 +02:00
fpu
math: x86 trunc traps when FE_INEXACT is enabled (BZ 31603)
2024-04-04 14:29:28 -03:00
htl
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2024-01-01 10:53:40 -08:00
include
x86: Add Avoid_STOSB tunable to allow NT memset without ERMS
2024-08-15 08:19:15 -07:00
nptl
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2024-01-01 10:53:40 -08:00
sys/platform
x86-64/cet: Make CET feature check specific to Linux/x86
2024-01-11 20:35:24 -08:00
__longjmp_cancel.S
x86-64/cet: Check the restore token in longjmp
2024-01-04 13:38:26 -08:00
abi-note.c
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2024-01-01 10:53:40 -08:00
atomic-machine.h
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2024-01-01 10:53:40 -08:00
cacheinfo.c
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2024-01-01 10:53:40 -08:00
cacheinfo.h
x86: Add seperate non-temporal tunable for memset
2024-05-30 12:36:09 -05:00
configure
Convert to autoconf 2.72 (vanilla release, no distribution patches)
2024-06-17 21:15:28 +02:00
configure.ac
x86: Properly set x86 minimum ISA level [BZ #31883]
2024-06-12 14:27:54 -07:00
cpu-features-offsets.sym
x86-64: Update _dl_tlsdesc_dynamic to preserve AMX registers
2024-02-29 04:30:01 -08:00
cpu-features.c
x86: Add Avoid_STOSB tunable to allow NT memset without ERMS
2024-08-15 08:19:15 -07:00
cpu-tunables.c
x86: Add Avoid_STOSB tunable to allow NT memset without ERMS
2024-08-15 08:19:15 -07:00
dl-cacheinfo.h
x86: Add Avoid_STOSB tunable to allow NT memset without ERMS
2024-08-15 08:19:15 -07:00
dl-diagnostics-cpu.c
x86: Add seperate non-temporal tunable for memset
2024-05-30 12:36:09 -05:00
dl-get-cpu-features.c
x86: In ld.so, diagnose missing APX support in APX-only builds
2024-04-25 17:20:28 +02:00
dl-hwcap2.h
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2024-01-01 10:53:40 -08:00
dl-hwcap.h
elf: Remove HWCAP_IMPORTANT
2024-06-18 10:45:36 +02:00
dl-isa-level.h
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2024-01-01 10:53:40 -08:00
dl-lookupcfg.h
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2024-01-01 10:53:40 -08:00
dl-minsigstacksize.h
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2024-01-01 10:53:40 -08:00
dl-new-hash.h
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2024-01-01 10:53:40 -08:00
dl-procinfo.c
elf: Remove _DL_PLATFORMS_COUNT
2024-06-18 10:45:36 +02:00
dl-procinfo.h
elf: Remove _DL_PLATFORMS_COUNT
2024-06-18 10:45:36 +02:00
dl-prop.h
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2024-01-01 10:53:40 -08:00
dl-tunables.list
x86: Add seperate non-temporal tunable for memset
2024-05-30 12:36:09 -05:00
elf-initfini.h
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2024-01-01 10:53:40 -08:00
elide.h
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2024-01-01 10:53:40 -08:00
features-offsets.sym
x86: Update _dl_tlsdesc_dynamic to preserve caller-saved registers
2024-02-28 09:02:56 -08:00
float128-abi.h
Move __isnanf128 to libc.so
2021-03-30 14:58:19 +05:30
fpu_control.h
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2024-01-01 10:53:40 -08:00
get-cpuid-feature-leaf.c
x86-64/cet: Make CET feature check specific to Linux/x86
2024-01-11 20:35:24 -08:00
get-isa-level.h
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2024-01-01 10:53:40 -08:00
hp-timing.h
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2024-01-01 10:53:40 -08:00
init-arch.h
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2024-01-01 10:53:40 -08:00
isa-ifunc-macros.h
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2024-01-01 10:53:40 -08:00
isa-level.c
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2024-01-01 10:53:40 -08:00
isa-level.h
x86: Properly set x86 minimum ISA level [BZ #31883]
2024-06-12 14:27:54 -07:00
jmp_buf-ssp.sym
x86: Support shadow stack pointer in setjmp/longjmp
2018-07-14 05:59:53 -07:00
ldbl2mpn.c
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2024-01-01 10:53:40 -08:00
ldsodefs.h
i386: Remove CET support bits
2024-01-10 05:20:20 -08:00
libc-start.c
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2024-01-01 10:53:40 -08:00
link_map.h
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2024-01-01 10:53:40 -08:00
linkmap.h
…
longjmp.c
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2024-01-01 10:53:40 -08:00
Makeconfig
Add _Float64x function aliases.
2017-11-27 14:16:47 +00:00
Makefile
x86: Update _dl_tlsdesc_dynamic to preserve caller-saved registers
2024-02-28 09:02:56 -08:00
readelflib.c
Remove ia64-linux-gnu
2024-01-08 17:09:36 -03:00
sysdep.h
x86-64: Allocate state buffer space for RDI, RSI and RBX
2024-03-18 19:45:13 -07:00
tininess.h
…
tst-cpu-features-cpuinfo-static.c
x86: Add PTWRITE feature detection [BZ #27346]
2021-02-07 08:01:14 -08:00
tst-cpu-features-cpuinfo.c
x86: Don't check XFD against /proc/cpuinfo
2024-02-28 11:50:38 -08:00
tst-cpu-features-supports-static.c
x86: Add PTWRITE feature detection [BZ #27346]
2021-02-07 08:01:14 -08:00
tst-cpu-features-supports.c
i386: Disable Intel Xeon Phi tests for GCC 15 and above (BZ 31782)
2024-05-27 12:28:13 -07:00
tst-get-cpu-features-static.c
…
tst-get-cpu-features.c
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2024-01-01 10:53:40 -08:00
tst-gnu2-tls2.c
x86: Update _dl_tlsdesc_dynamic to preserve caller-saved registers
2024-02-28 09:02:56 -08:00
tst-hwcap-tunables.c
x86: Add Avoid_STOSB tunable to allow NT memset without ERMS
2024-08-15 08:19:15 -07:00
tst-ifunc-isa-1-static.c
x86: Check ifunc resolver with CPU_FEATURE_USABLE [BZ #27072]
2021-01-21 10:22:26 -08:00
tst-ifunc-isa-1.c
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2024-01-01 10:53:40 -08:00
tst-ifunc-isa-2-static.c
x86: Check ifunc resolver with CPU_FEATURE_USABLE [BZ #27072]
2021-01-21 10:22:26 -08:00
tst-ifunc-isa-2.c
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2024-01-01 10:53:40 -08:00
tst-ifunc-isa.h
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2024-01-01 10:53:40 -08:00
tst-isa-level-1.c
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2024-01-01 10:53:40 -08:00
tst-isa-level-mod-1-baseline.c
x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717]
2021-01-07 13:10:13 -08:00
tst-isa-level-mod-1-v2.c
x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717]
2021-01-07 13:10:13 -08:00
tst-isa-level-mod-1-v3.c
x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717]
2021-01-07 13:10:13 -08:00
tst-isa-level-mod-1-v4.c
x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717]
2021-01-07 13:10:13 -08:00
tst-isa-level-mod-1.c
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2024-01-01 10:53:40 -08:00
tst-ldbl-nonnormal-printf.c
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2024-01-01 10:53:40 -08:00
tst-memchr-rtm.c
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2024-01-01 10:53:40 -08:00
tst-memcmp-rtm.c
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2024-01-01 10:53:40 -08:00
tst-memmove-rtm.c
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tst-memrchr-rtm.c
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2024-01-01 10:53:40 -08:00
tst-memset-rtm.c
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2024-01-01 10:53:40 -08:00
tst-setjmp-cet.c
x86: Set header.feature_1 in TCB for always-on CET [BZ #27177]
2021-01-13 05:03:34 -08:00
tst-stack-align.h
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2024-01-01 10:53:40 -08:00
tst-strcasecmp-rtm.c
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2024-01-01 10:53:40 -08:00
tst-strchr-rtm.c
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tst-strcmp-rtm.c
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tst-strcpy-rtm.c
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tst-string-rtm.h
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2024-01-01 10:53:40 -08:00
tst-strlen-rtm.c
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2024-01-01 10:53:40 -08:00
tst-strncasecmp-rtm.c
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2024-01-01 10:53:40 -08:00
tst-strncmp-rtm.c
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tst-strrchr-rtm.c
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2024-01-01 10:53:40 -08:00
tst-sysconf-cache-linesize-static.c
x86: Handle _SC_LEVEL1_ICACHE_LINESIZE [BZ #27444]
2021-03-15 05:43:26 -07:00
tst-sysconf-cache-linesize.c
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tst-wcscmp-rtm.c
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tst-wcsncmp-rtm.c
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2024-01-01 10:53:40 -08:00
utmp-size.h
login: Check default sizes of structs utmp, utmpx, lastlog
2024-04-19 14:38:17 +02:00
Versions
<sys/platform/x86.h>: Remove the C preprocessor magic
2021-01-21 05:58:17 -08:00