mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +00:00
110 lines
5.8 KiB
ArmAsm
110 lines
5.8 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 2022 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"
|
|
|
|
// Sets machine state.
|
|
//
|
|
// @see getcontext()
|
|
setcontext:
|
|
mov 224(%rdi),%rax
|
|
test %rax,%rax
|
|
je 1f
|
|
movaps 160(%rax),%xmm0
|
|
movaps 176(%rax),%xmm1
|
|
movaps 192(%rax),%xmm2
|
|
movaps 208(%rax),%xmm3
|
|
movaps 224(%rax),%xmm4
|
|
movaps 240(%rax),%xmm5
|
|
movaps 256(%rax),%xmm6
|
|
movaps 272(%rax),%xmm7
|
|
movaps 288(%rax),%xmm8
|
|
movaps 304(%rax),%xmm9
|
|
movaps 320(%rax),%xmm10
|
|
movaps 336(%rax),%xmm11
|
|
movaps 352(%rax),%xmm12
|
|
movaps 368(%rax),%xmm13
|
|
movaps 384(%rax),%xmm14
|
|
movaps 400(%rax),%xmm15
|
|
1: push 176(%rdi)
|
|
popf
|
|
mov 40(%rdi),%r8
|
|
mov 48(%rdi),%r9
|
|
mov 56(%rdi),%r10
|
|
mov 64(%rdi),%r11
|
|
mov 72(%rdi),%r12
|
|
mov 80(%rdi),%r13
|
|
mov 88(%rdi),%r14
|
|
mov 96(%rdi),%r15
|
|
mov 112(%rdi),%rsi
|
|
mov 120(%rdi),%rbp
|
|
mov 128(%rdi),%rbx
|
|
mov 136(%rdi),%rdx
|
|
mov 144(%rdi),%rax
|
|
mov 152(%rdi),%rcx
|
|
mov 160(%rdi),%rsp
|
|
xor %rax,%rax
|
|
push 168(%rdi)
|
|
mov 104(%rdi),%rdi
|
|
ret
|
|
.endfn setcontext,globl
|
|
|
|
.end
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
noasan noubsan int setcontext(const ucontext_t *uc) {
|
|
if (uc->uc_mcontext.fpregs) {
|
|
asm volatile("movaps\t%0,%%xmm0" : /* no outputs */ : "m"(uc->uc_mcontext.fpregs->xmm[0]));
|
|
asm volatile("movaps\t%0,%%xmm1" : /* no outputs */ : "m"(uc->uc_mcontext.fpregs->xmm[1]));
|
|
asm volatile("movaps\t%0,%%xmm2" : /* no outputs */ : "m"(uc->uc_mcontext.fpregs->xmm[2]));
|
|
asm volatile("movaps\t%0,%%xmm3" : /* no outputs */ : "m"(uc->uc_mcontext.fpregs->xmm[3]));
|
|
asm volatile("movaps\t%0,%%xmm4" : /* no outputs */ : "m"(uc->uc_mcontext.fpregs->xmm[4]));
|
|
asm volatile("movaps\t%0,%%xmm5" : /* no outputs */ : "m"(uc->uc_mcontext.fpregs->xmm[5]));
|
|
asm volatile("movaps\t%0,%%xmm6" : /* no outputs */ : "m"(uc->uc_mcontext.fpregs->xmm[6]));
|
|
asm volatile("movaps\t%0,%%xmm7" : /* no outputs */ : "m"(uc->uc_mcontext.fpregs->xmm[7]));
|
|
asm volatile("movaps\t%0,%%xmm8" : /* no outputs */ : "m"(uc->uc_mcontext.fpregs->xmm[8]));
|
|
asm volatile("movaps\t%0,%%xmm9" : /* no outputs */ : "m"(uc->uc_mcontext.fpregs->xmm[9]));
|
|
asm volatile("movaps\t%0,%%xmm10" : /* no outputs */ : "m"(uc->uc_mcontext.fpregs->xmm[10]));
|
|
asm volatile("movaps\t%0,%%xmm11" : /* no outputs */ : "m"(uc->uc_mcontext.fpregs->xmm[11]));
|
|
asm volatile("movaps\t%0,%%xmm12" : /* no outputs */ : "m"(uc->uc_mcontext.fpregs->xmm[12]));
|
|
asm volatile("movaps\t%0,%%xmm13" : /* no outputs */ : "m"(uc->uc_mcontext.fpregs->xmm[13]));
|
|
asm volatile("movaps\t%0,%%xmm14" : /* no outputs */ : "m"(uc->uc_mcontext.fpregs->xmm[14]));
|
|
asm volatile("movaps\t%0,%%xmm15" : /* no outputs */ : "m"(uc->uc_mcontext.fpregs->xmm[15]));
|
|
}
|
|
asm volatile("mov\t%0,%%r8" : /* no outputs */ : "m"(uc->uc_mcontext.r8));
|
|
asm volatile("mov\t%0,%%r9" : /* no outputs */ : "m"(uc->uc_mcontext.r9));
|
|
asm volatile("mov\t%0,%%r10" : /* no outputs */ : "m"(uc->uc_mcontext.r10));
|
|
asm volatile("mov\t%0,%%r11" : /* no outputs */ : "m"(uc->uc_mcontext.r11));
|
|
asm volatile("mov\t%0,%%r12" : /* no outputs */ : "m"(uc->uc_mcontext.r12));
|
|
asm volatile("mov\t%0,%%r13" : /* no outputs */ : "m"(uc->uc_mcontext.r13));
|
|
asm volatile("mov\t%0,%%r14" : /* no outputs */ : "m"(uc->uc_mcontext.r14));
|
|
asm volatile("mov\t%0,%%r15" : /* no outputs */ : "m"(uc->uc_mcontext.r15));
|
|
asm volatile("mov\t%0,%%rsi" : /* no outputs */ : "m"(uc->uc_mcontext.rsi));
|
|
asm volatile("mov\t%0,%%rbp" : /* no outputs */ : "m"(uc->uc_mcontext.rbp));
|
|
asm volatile("mov\t%0,%%rbx" : /* no outputs */ : "m"(uc->uc_mcontext.rbx));
|
|
asm volatile("mov\t%0,%%rdx" : /* no outputs */ : "m"(uc->uc_mcontext.rdx));
|
|
asm volatile("mov\t%0,%%rax" : /* no outputs */ : "m"(uc->uc_mcontext.rax));
|
|
asm volatile("mov\t%0,%%rcx" : /* no outputs */ : "m"(uc->uc_mcontext.rcx));
|
|
asm volatile("mov\t%0,%%rsp" : /* no outputs */ : "m"(uc->uc_mcontext.rsp));
|
|
asm volatile("xor\t%%rax,%%rax\n\t"
|
|
"push\t%0\n\t"
|
|
"mov\t%1,%%rdi\n\t"
|
|
"ret"
|
|
: /* no outputs */
|
|
: "m"(uc->uc_mcontext.rip), "m"(uc->uc_mcontext.rdi));
|
|
unreachable;
|
|
}
|