glibc/sysdeps/sh/nptl/pthread_spin_trylock.S

40 lines
1.3 KiB
ArmAsm

/* Copyright (C) 2003-2023 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
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <shlib-compat.h>
.globl __pthread_spin_trylock
.type __pthread_spin_trylock,@function
.align 5
__pthread_spin_trylock:
tas.b @r4
bf/s 1f
mov #EBUSY, r0
mov #0, r0
1:
rts
nop
.size __pthread_spin_trylock,.-__pthread_spin_trylock
versioned_symbol (libc, __pthread_spin_trylock, pthread_spin_trylock,
GLIBC_2_34)
#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_2, GLIBC_2_34)
compat_symbol (libpthread, __pthread_spin_trylock, pthread_spin_trylock,
GLIBC_2_2)
#endif