mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
581c785bf3
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/* x86 version of hardware capability information handling macros.
|
|
Copyright (C) 2017-2022 Free Software Foundation, Inc.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _DL_HWCAP_H
|
|
#define _DL_HWCAP_H
|
|
|
|
#if IS_IN (ldconfig)
|
|
/* Since ldconfig processes both i386 and x86-64 libraries, it needs
|
|
to cover all platforms and hardware capabilities. */
|
|
# define HWCAP_PLATFORMS_START 0
|
|
# define HWCAP_PLATFORMS_COUNT 4
|
|
# define HWCAP_START 0
|
|
# define HWCAP_COUNT 3
|
|
# define HWCAP_IMPORTANT \
|
|
(HWCAP_X86_SSE2 | HWCAP_X86_64 | HWCAP_X86_AVX512_1)
|
|
#elif defined __x86_64__
|
|
/* For 64 bit, only cover x86-64 platforms and capabilities. */
|
|
# define HWCAP_PLATFORMS_START 2
|
|
# define HWCAP_PLATFORMS_COUNT 4
|
|
# define HWCAP_START 1
|
|
# define HWCAP_COUNT 3
|
|
# define HWCAP_IMPORTANT (HWCAP_X86_64 | HWCAP_X86_AVX512_1)
|
|
#else
|
|
/* For 32 bit, only cover i586, i686 and SSE2. */
|
|
# define HWCAP_PLATFORMS_START 0
|
|
# define HWCAP_PLATFORMS_COUNT 2
|
|
# define HWCAP_START 0
|
|
# define HWCAP_COUNT 1
|
|
# define HWCAP_IMPORTANT (HWCAP_X86_SSE2)
|
|
#endif
|
|
|
|
enum
|
|
{
|
|
HWCAP_X86_SSE2 = 1 << 0,
|
|
HWCAP_X86_64 = 1 << 1,
|
|
HWCAP_X86_AVX512_1 = 1 << 2
|
|
};
|
|
|
|
static inline const char *
|
|
__attribute__ ((unused))
|
|
_dl_hwcap_string (int idx)
|
|
{
|
|
return GLRO(dl_x86_hwcap_flags)[idx];
|
|
};
|
|
|
|
static inline int
|
|
__attribute__ ((unused, always_inline))
|
|
_dl_string_hwcap (const char *str)
|
|
{
|
|
int i;
|
|
|
|
for (i = HWCAP_START; i < HWCAP_COUNT; i++)
|
|
{
|
|
if (strcmp (str, GLRO(dl_x86_hwcap_flags)[i]) == 0)
|
|
return i;
|
|
}
|
|
return -1;
|
|
};
|
|
|
|
/* We cannot provide a general printing function. */
|
|
#define _dl_procinfo(type, word) -1
|
|
|
|
#endif /* dl-hwcap.h */
|