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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.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include "pthreadP.h"
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#ifndef LOCK_PREFIX
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# ifdef UP
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# define LOCK_PREFIX /* nothing */
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# else
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# define LOCK_PREFIX "lock;"
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# endif
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#endif
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int
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pthread_spin_lock (lock)
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pthread_spinlock_t *lock;
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{
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asm ("\n"
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"1:\t" LOCK_PREFIX "decl %0\n\t"
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"jne 2f\n\t"
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".subsection 1\n\t"
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".align 16\n"
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"2:\trep; nop\n\t"
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"cmpl $0, %0\n\t"
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"jg 1b\n\t"
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"jmp 2b\n\t"
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".previous"
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: "=m" (*lock)
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: "m" (*lock));
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return 0;
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}
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