mirror of
https://github.com/jart/cosmopolitan.git
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83 lines
3.8 KiB
C
83 lines
3.8 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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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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│ │
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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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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/ucontext.h"
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#include "libc/log/libfatal.internal.h"
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#include "libc/nt/struct/context.h"
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#include "libc/str/str.h"
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#ifdef __x86_64__
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textwindows void _ntcontext2linux(ucontext_t *ctx, const struct NtContext *cr) {
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if (!cr)
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return;
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ctx->uc_mcontext.eflags = cr->EFlags;
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ctx->uc_mcontext.rax = cr->Rax;
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ctx->uc_mcontext.rbx = cr->Rbx;
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ctx->uc_mcontext.rcx = cr->Rcx;
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ctx->uc_mcontext.rdx = cr->Rdx;
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ctx->uc_mcontext.rdi = cr->Rdi;
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ctx->uc_mcontext.rsi = cr->Rsi;
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ctx->uc_mcontext.rbp = cr->Rbp;
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ctx->uc_mcontext.rsp = cr->Rsp;
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ctx->uc_mcontext.rip = cr->Rip;
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ctx->uc_mcontext.r8 = cr->R8;
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ctx->uc_mcontext.r9 = cr->R9;
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ctx->uc_mcontext.r10 = cr->R10;
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ctx->uc_mcontext.r11 = cr->R11;
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ctx->uc_mcontext.r12 = cr->R12;
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ctx->uc_mcontext.r13 = cr->R13;
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ctx->uc_mcontext.r14 = cr->R14;
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ctx->uc_mcontext.r15 = cr->R15;
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ctx->uc_mcontext.cs = cr->SegCs;
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ctx->uc_mcontext.gs = cr->SegGs;
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ctx->uc_mcontext.fs = cr->SegFs;
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ctx->uc_mcontext.fpregs = &ctx->__fpustate;
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__repmovsb(&ctx->__fpustate, &cr->FltSave, sizeof(ctx->__fpustate));
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ctx->__fpustate.mxcsr = cr->MxCsr;
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}
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textwindows void _ntlinux2context(struct NtContext *cr, const ucontext_t *ctx) {
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if (!cr)
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return;
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cr->EFlags = ctx->uc_mcontext.eflags;
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cr->Rax = ctx->uc_mcontext.rax;
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cr->Rbx = ctx->uc_mcontext.rbx;
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cr->Rcx = ctx->uc_mcontext.rcx;
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cr->Rdx = ctx->uc_mcontext.rdx;
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cr->Rdi = ctx->uc_mcontext.rdi;
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cr->Rsi = ctx->uc_mcontext.rsi;
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cr->Rbp = ctx->uc_mcontext.rbp;
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cr->Rsp = ctx->uc_mcontext.rsp;
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cr->Rip = ctx->uc_mcontext.rip;
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cr->R8 = ctx->uc_mcontext.r8;
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cr->R9 = ctx->uc_mcontext.r9;
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cr->R10 = ctx->uc_mcontext.r10;
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cr->R11 = ctx->uc_mcontext.r11;
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cr->R12 = ctx->uc_mcontext.r12;
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cr->R13 = ctx->uc_mcontext.r13;
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cr->R14 = ctx->uc_mcontext.r14;
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cr->R15 = ctx->uc_mcontext.r15;
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cr->SegCs = ctx->uc_mcontext.cs;
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cr->SegGs = ctx->uc_mcontext.gs;
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cr->SegFs = ctx->uc_mcontext.fs;
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cr->MxCsr = ctx->__fpustate.mxcsr;
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__repmovsb(&cr->FltSave, &ctx->__fpustate, sizeof(ctx->__fpustate));
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}
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#endif /* __x86_64__ */
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