53 lines
3.1 KiB
C
53 lines
3.1 KiB
C
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net 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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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/internal.h"
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#include "libc/calls/ucontext.h"
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#include "libc/nt/struct/context.h"
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#include "libc/str/str.h"
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textwindows void ntcontext2linux(ucontext_t *ctx, const struct NtContext *cr) {
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if (!cr) return;
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ctx->uc_flags = 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.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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ctx->fpustate.cwd = cr->FltSave.ControlWord;
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ctx->fpustate.swd = cr->FltSave.StatusWord;
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ctx->fpustate.mxcsr = cr->FltSave.MxCsr;
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ctx->fpustate.mxcr_mask = cr->FltSave.MxCsr_Mask;
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/* copy r8,r9,r10,r11,r12,r13,r15 */
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memcpy(&ctx->uc_mcontext.r8, &cr->R8, 8 * sizeof(int64_t));
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/* copy st0-st7 as well as xmm0-xmm15 */
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memcpy(ctx->fpustate.st, &cr->FltSave.FloatRegisters,
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sizeof(ctx->fpustate.st) + sizeof(ctx->fpustate.xmm));
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memcpy(ctx->fpustate.st, &cr->FltSave.FloatRegisters,
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sizeof(ctx->fpustate.st) + sizeof(ctx->fpustate.xmm));
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}
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