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| author | H.J. Lu <hjl.tools@gmail.com> | 2020-07-11 09:04:34 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2020-07-11 09:34:03 -0700 |
| commit | 9016b6f3893789ddfbd978aa572b46b3d3ce762f (patch) | |
| tree | c810efbead39f0efb54e7e79e4960e84c7718527 | |
| parent | 758caf37366c3bebd349cd3107341dbfd761189a (diff) | |
| download | glibc-9016b6f3893789ddfbd978aa572b46b3d3ce762f.tar.gz glibc-9016b6f3893789ddfbd978aa572b46b3d3ce762f.tar.xz glibc-9016b6f3893789ddfbd978aa572b46b3d3ce762f.zip | |
x86: Remove the unused __x86_prefetchw
Since
commit c867597bff2562180a18da4b8dba89d24e8b65c4
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Wed Jun 8 13:57:50 2016 -0700
X86-64: Remove previous default/SSE2/AVX2 memcpy/memmove
removed the only usage of __x86_prefetchw, we can remove the unused
__x86_prefetchw.
| -rw-r--r-- | sysdeps/i386/Makefile | 4 | ||||
| -rw-r--r-- | sysdeps/i386/cacheinfo.c | 3 | ||||
| -rw-r--r-- | sysdeps/x86/Makefile | 4 | ||||
| -rw-r--r-- | sysdeps/x86/cacheinfo.c | 16 | ||||
| -rw-r--r-- | sysdeps/x86_64/Makefile | 2 |
5 files changed, 5 insertions, 24 deletions
diff --git a/sysdeps/i386/Makefile b/sysdeps/i386/Makefile index b9b1367f60..a2e8c0b128 100644 --- a/sysdeps/i386/Makefile +++ b/sysdeps/i386/Makefile @@ -13,10 +13,6 @@ ifeq ($(subdir),math) CFLAGS-e_gamma_r.c += -DMATH_SET_BOTH_ROUNDING_MODES endif -ifeq ($(subdir),string) -sysdep_routines += cacheinfo -endif - ifeq ($(subdir),gmon) sysdep_routines += i386-mcount endif diff --git a/sysdeps/i386/cacheinfo.c b/sysdeps/i386/cacheinfo.c deleted file mode 100644 index f15fe0779a..0000000000 --- a/sysdeps/i386/cacheinfo.c +++ /dev/null @@ -1,3 +0,0 @@ -#define DISABLE_PREFETCHW - -#include <sysdeps/x86/cacheinfo.c> diff --git a/sysdeps/x86/Makefile b/sysdeps/x86/Makefile index beab426f67..a6736aef25 100644 --- a/sysdeps/x86/Makefile +++ b/sysdeps/x86/Makefile @@ -14,6 +14,10 @@ gen-as-const-headers += jmp_buf-ssp.sym sysdep_routines += __longjmp_cancel endif +ifeq ($(subdir),string) +sysdep_routines += cacheinfo +endif + ifneq ($(enable-cet),no) ifeq ($(subdir),elf) sysdep-dl-routines += dl-cet diff --git a/sysdeps/x86/cacheinfo.c b/sysdeps/x86/cacheinfo.c index 136809a6d8..5366a37ea0 100644 --- a/sysdeps/x86/cacheinfo.c +++ b/sysdeps/x86/cacheinfo.c @@ -536,11 +536,6 @@ long int __x86_rep_movsb_threshold attribute_hidden = 2048; /* Threshold to use Enhanced REP STOSB. */ long int __x86_rep_stosb_threshold attribute_hidden = 2048; -#ifndef DISABLE_PREFETCHW -/* PREFETCHW support flag for use in memory and string routines. */ -int __x86_prefetchw attribute_hidden; -#endif - static void get_common_cache_info (long int *shared_ptr, unsigned int *threads_ptr, @@ -831,17 +826,6 @@ init_cacheinfo (void) /* Account for exclusive L2 and L3 caches. */ shared += core; } - -#ifndef DISABLE_PREFETCHW - if (max_cpuid_ex >= 0x80000001) - { - unsigned int eax; - __cpuid (0x80000001, eax, ebx, ecx, edx); - /* PREFETCHW || 3DNow! */ - if ((ecx & 0x100) || (edx & 0x80000000)) - __x86_prefetchw = -1; - } -#endif } if (cpu_features->data_cache_size != 0) diff --git a/sysdeps/x86_64/Makefile b/sysdeps/x86_64/Makefile index d51cf03ac9..e3bb45d788 100644 --- a/sysdeps/x86_64/Makefile +++ b/sysdeps/x86_64/Makefile @@ -18,7 +18,7 @@ tests += tst-mallocalign1 endif ifeq ($(subdir),string) -sysdep_routines += cacheinfo strcasecmp_l-nonascii strncase_l-nonascii +sysdep_routines += strcasecmp_l-nonascii strncase_l-nonascii gen-as-const-headers += locale-defines.sym endif |