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| author | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:08:59 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:08:59 +0000 |
| commit | e84eabb3871c9b39e59323bf3f6b98c2ca9d1cd0 (patch) | |
| tree | dff3f1b79454b518d15a7b9bbedeb57ff156bbe8 /ports/sysdeps/alpha/nptl/pthread_spin_lock.S | |
| parent | 75f0d3040a2c2de8842bfa7a09e11da1a73e17d0 (diff) | |
| parent | e64ac02c24b43659048622714afdc92fedf561fa (diff) | |
| download | glibc-63aa821ec011b9347414f4c0b6a75cce77f87ecf.tar.gz glibc-63aa821ec011b9347414f4c0b6a75cce77f87ecf.tar.xz glibc-63aa821ec011b9347414f4c0b6a75cce77f87ecf.zip | |
Merge glibc-ports into ports/ directory. glibc-2.16.90 glibc-2.16-ports-merge
Diffstat (limited to 'ports/sysdeps/alpha/nptl/pthread_spin_lock.S')
| -rw-r--r-- | ports/sysdeps/alpha/nptl/pthread_spin_lock.S | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/ports/sysdeps/alpha/nptl/pthread_spin_lock.S b/ports/sysdeps/alpha/nptl/pthread_spin_lock.S new file mode 100644 index 0000000000..856d6506be --- /dev/null +++ b/ports/sysdeps/alpha/nptl/pthread_spin_lock.S @@ -0,0 +1,44 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson <rth@twiddle.net>, 2003. + + 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 + <http://www.gnu.org/licenses/>. */ + + + .text + .align 4 + + .globl pthread_spin_lock + .ent pthread_spin_lock +pthread_spin_lock: + .frame $sp, 0, $26, 0 + .prologue 0 + +0: ldl_l $1, 0($16) + lda $2, 1 + lda $0, 0 + bne $1, 1f + + stl_c $2, 0($16) + beq $2, 1f + mb + ret + +1: ldl $1, 0($16) + bne $1, 1b + unop + br 0b + + .end pthread_spin_lock |