diff options
author | Waldemar Brodkorb <wbx@openadk.org> | 2016-05-31 20:51:29 +0200 |
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committer | Waldemar Brodkorb <wbx@openadk.org> | 2016-05-31 20:51:29 +0200 |
commit | 3ac3d4e61a1de0c2d0e0d2bebf0d1b111f153f12 (patch) | |
tree | 1f4937d22617218f5ebd2a0e26441fcd3a44db49 /libpthread/nptl/sysdeps/arm/pthread_spin_lock.S | |
parent | 95174cb69c523a1544e5f6f20e47f7d60007e569 (diff) |
arm: add non-assembly versions of pthread_spin_lock/pthread_spin_trylock
Sync pthread_spin_lock/pthread_spin_trylock with GNU libc as it avoids
any usage of deprecated SWP instruction. This allows to build uClibc-ng
for ARMv8 Cortex-A53 CPU in 32 Bit mode.
Diffstat (limited to 'libpthread/nptl/sysdeps/arm/pthread_spin_lock.S')
-rw-r--r-- | libpthread/nptl/sysdeps/arm/pthread_spin_lock.S | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/libpthread/nptl/sysdeps/arm/pthread_spin_lock.S b/libpthread/nptl/sysdeps/arm/pthread_spin_lock.S deleted file mode 100644 index a9c07c87d..000000000 --- a/libpthread/nptl/sysdeps/arm/pthread_spin_lock.S +++ /dev/null @@ -1,30 +0,0 @@ -/* Copyright (C) 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - 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/>. */ - -#include <sysdep.h> - - .text - .align 4 - -ENTRY (pthread_spin_lock) - mov r1, #1 -1: swp r2, r1, [r0] - teq r2, #0 - bne 1b - mov r0, #0 - PSEUDO_RET_NOERRNO -END (pthread_spin_lock) |