mirror of
https://github.com/jart/cosmopolitan.git
synced 2024-05-12 08:32:40 +00:00
a4b455185b
Renaming gc() to _gc() was a mistake since the better thing to do is put it behind the _COSMO_SOURCE macro. We need this change because I haven't wanted to use my amazing garbage collector ever since we renamed it. You now need to define _COSMO_SOURCE yourself when using amalgamation header and cosmocc users need to pass the -mcosmo flag to get the gc() function Some other issues relating to cancelation have been fixed along the way. We're also now putting cosmocc in a folder named `.cosmocc` so it can be more safely excluded by grep --exclude-dir=.cosmocc --exclude-dir=o etc.
66 lines
2.7 KiB
ArmAsm
66 lines
2.7 KiB
ArmAsm
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
|
|
│ vi: set noet ft=asm ts=8 sw=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 cpu state.
|
|
//
|
|
// @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()
|
|
.ftrace1
|
|
setjmp:
|
|
.ftrace2
|
|
_setjmp:
|
|
#ifdef __x86_64__
|
|
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
|
|
#elif defined(__aarch64__)
|
|
stp x19,x20,[x0,#0]
|
|
stp x21,x22,[x0,#16]
|
|
stp x23,x24,[x0,#32]
|
|
stp x25,x26,[x0,#48]
|
|
stp x27,x28,[x0,#64]
|
|
stp x29,x30,[x0,#80]
|
|
mov x2,sp
|
|
str x2,[x0,#104]
|
|
stp d8,d9,[x0,#112]
|
|
stp d10,d11,[x0,#128]
|
|
stp d12,d13,[x0,#144]
|
|
stp d14,d15,[x0,#160]
|
|
mov x0,#0
|
|
ret
|
|
#else
|
|
#error "unsupported architecture"
|
|
#endif
|
|
.endfn _setjmp,globl
|
|
.endfn setjmp,globl
|