mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-31 22:10:34 +03:00
2b778ceb40
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 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
/* Copyright (C) 2000-2021 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Maciej W. Rozycki <macro@ds2.pg.gda.pl>, 2000.
|
|
|
|
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 _SYS_TAS_H
|
|
#define _SYS_TAS_H 1
|
|
|
|
#include <features.h>
|
|
#include <sgidefs.h>
|
|
|
|
__BEGIN_DECLS
|
|
|
|
extern int _test_and_set (int *__p, int __v)
|
|
__THROW __attribute__ ((__nomips16__));
|
|
|
|
#ifdef __USE_EXTERN_INLINES
|
|
|
|
# ifndef _EXTERN_INLINE
|
|
# define _EXTERN_INLINE __extern_inline
|
|
# endif
|
|
|
|
_EXTERN_INLINE int __attribute__ ((__nomips16__))
|
|
__NTH (_test_and_set (int *__p, int __v))
|
|
{
|
|
int __r, __t;
|
|
|
|
/* The R5900 reports itself as MIPS III but it does not have LL/SC. */
|
|
__asm__ __volatile__
|
|
("/* Inline test and set */\n"
|
|
".set push\n\t"
|
|
#if _MIPS_SIM == _ABIO32 && (__mips < 2 || defined (_MIPS_ARCH_R5900))
|
|
".set mips2\n\t"
|
|
#endif
|
|
"sync\n\t"
|
|
"1:\n\t"
|
|
"ll %0,%3\n\t"
|
|
"move %1,%4\n\t"
|
|
"beq %0,%4,2f\n\t"
|
|
"sc %1,%2\n\t"
|
|
"beqz %1,1b\n"
|
|
"sync\n\t"
|
|
".set pop\n\t"
|
|
"2:\n\t"
|
|
"/* End test and set */"
|
|
: "=&r" (__r), "=&r" (__t), "=m" (*__p)
|
|
: "m" (*__p), "r" (__v)
|
|
: "memory");
|
|
|
|
return __r;
|
|
}
|
|
|
|
#endif /* __USE_EXTERN_INLINES */
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* sys/tas.h */
|