diff options
Diffstat (limited to 'libc/arch-arm64/bionic/futex_arm64.S')
| -rw-r--r-- | libc/arch-arm64/bionic/futex_arm64.S | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/libc/arch-arm64/bionic/futex_arm64.S b/libc/arch-arm64/bionic/futex_arm64.S new file mode 100644 index 0000000..9d7465a --- /dev/null +++ b/libc/arch-arm64/bionic/futex_arm64.S @@ -0,0 +1,47 @@ +/* + * Copyright (C) 2013 The Android Open Source Project + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <private/bionic_asm.h> + +// int __futex_syscall4(volatile void* ftx, int op, int val, const struct timespec* timeout) +ENTRY_PRIVATE(__futex_syscall4) + stp x29, x30, [sp, #-16]! + .cfi_def_cfa_offset 16 + .cfi_rel_offset x29, 0 + .cfi_rel_offset x30, 8 + mov x29, sp + + mov x8, __NR_futex + svc #0 + + ldp x29, x30, [sp], #16 + .cfi_def_cfa_offset 0 + .cfi_restore x29 + .cfi_restore x30 + ret +END(__futex_syscall4) |