2022-06-26 01:17:31 +00:00
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/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
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│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
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2020-06-15 14:18:57 +00:00
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╞══════════════════════════════════════════════════════════════════════════════╡
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2022-04-24 16:59:22 +00:00
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│ Copyright 2022 Justine Alexandra Roberts Tunney │
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2020-06-15 14:18:57 +00:00
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│ │
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2020-12-28 01:18:44 +00:00
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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2020-06-15 14:18:57 +00:00
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│ │
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2020-12-28 01:18:44 +00:00
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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2020-06-15 14:18:57 +00:00
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╚─────────────────────────────────────────────────────────────────────────────*/
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2022-06-26 01:17:31 +00:00
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#include "libc/sysv/consts/nr.h"
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#include "libc/macros.internal.h"
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2022-06-27 20:01:58 +00:00
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.privileged
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2022-03-16 20:33:13 +00:00
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2023-05-09 15:08:56 +00:00
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_futex:
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#ifdef __x86_64__
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push %rbp
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2022-09-10 16:14:40 +00:00
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mov %rsp,%rbp
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mov %rcx,%r10
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2022-07-18 02:59:49 +00:00
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mov __NR_futex,%eax
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2022-06-26 01:17:31 +00:00
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clc
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syscall
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jnc 1f
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neg %eax
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2022-09-10 16:14:40 +00:00
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1: pop %rbp
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2023-05-09 15:08:56 +00:00
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#elif defined(__aarch64__)
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mov x8,#0x062
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svc #0
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#else
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#error "unsupported architecture"
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#endif /* __x86_64__ */
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2022-09-10 16:14:40 +00:00
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ret
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2022-06-26 01:17:31 +00:00
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.endfn _futex,globl,hidden
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