mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
db2f05ba83
substitutions; the semicolon terminators are enough for ld anyway.
* elf/dl-deps.c (_dl_map_object_deps): Use alloca instead of
dynamically sized auto array in function already using alloca.
* locale/programs/ld-ctype.c (ctype_output): Likewise.
* locale/programs/ld-time.c (time_output): Likewise.
* elf/dl-misc.c (_dl_debug_vdprintf): Use macro instead of const for
IOV array size.
* locale/programs/charmap.c (charmap_read): Avoid alloca (or strdupa)
when also using dynamically-sized auto array.
* locale/programs/locfile.c (locfile_read): Likewise.
* locale/programs/repertoire.c (repertoire_read): Likewise.
* nis/nis_print_group_entry.c (nis_print_group_entry): Likewise.
* locale/programs/locarchive.c (enlarge_archive): Likewise.
* posix/annexc.c (check_header): Likewise.
* iconv/gconv_int.h (norm_add_slashes): Don't handle null SUFFIX.
strlen ("") gets optimized away just as well.
* intl/loadmsgcat.c (_nl_init_domain_conv): Update caller.
* wcsmbs/wcsmbsload.c (__wcsmbs_load_conv): Likewise.
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/* Copyright (C) 2002,2003,2004 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
|
|
|
|
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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include "pthreadP.h"
|
|
|
|
#ifndef LOCK_PREFIX
|
|
# ifdef UP
|
|
# define LOCK_PREFIX /* nothing */
|
|
# else
|
|
# define LOCK_PREFIX "lock;"
|
|
# endif
|
|
#endif
|
|
|
|
|
|
int
|
|
pthread_spin_lock (lock)
|
|
pthread_spinlock_t *lock;
|
|
{
|
|
asm ("\n"
|
|
"1:\t" LOCK_PREFIX "decl %0\n\t"
|
|
"jne 2f\n\t"
|
|
".subsection 1\n\t"
|
|
".align 16\n"
|
|
"2:\trep; nop\n\t"
|
|
"cmpl $0, %0\n\t"
|
|
"jg 1b\n\t"
|
|
"jmp 2b\n\t"
|
|
".previous"
|
|
: "=m" (*lock)
|
|
: "m" (*lock));
|
|
|
|
return 0;
|
|
}
|