mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +00:00
3e19b96ab8
Cosmopolitan currently doesn't support threads and it doesn't do anything fancy in longjmp/setjmp so this change was simple to do - localeconv - _setjmp (same as setjmp) - _longjmp (same as longjmp) - strcoll (same as strcmp) - flockfile (does nothing) - funlockfile (does nothing) - ftrylockfile (does nothing) See #61
42 lines
2.4 KiB
ArmAsm
42 lines
2.4 KiB
ArmAsm
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
|
|
│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/macros.internal.h"
|
|
|
|
// Saves caller CPU state to cacheline.
|
|
//
|
|
// @param rdi points to jmp_buf
|
|
// @return rax 0 when set and !0 when longjmp'd
|
|
// @returnstwice
|
|
// @assume system five nexgen32e abi conformant
|
|
// @note code built w/ microsoft abi compiler can't call this
|
|
// @see longjmp(), gclongjmp()
|
|
setjmp: lea 8(%rsp),%rax
|
|
mov %rax,(%rdi)
|
|
mov %rbx,8(%rdi)
|
|
mov %rbp,16(%rdi)
|
|
mov %r12,24(%rdi)
|
|
mov %r13,32(%rdi)
|
|
mov %r14,40(%rdi)
|
|
mov %r15,48(%rdi)
|
|
mov (%rsp),%rax
|
|
mov %rax,56(%rdi)
|
|
xor %eax,%eax
|
|
ret
|
|
.endfn setjmp,globl
|
|
.alias setjmp,_setjmp
|