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hurd: Implement _hurd_longjmp_thread_state for x86_64

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Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
Message-Id: <20230319151017.531737-29-bugaevc@gmail.com>
This commit is contained in:
Sergey Bugaev 2023-03-19 18:10:11 +03:00 committed by Samuel Thibault
parent e0bbae0062
commit 20427b8f23
1 changed files with 41 additions and 0 deletions
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41
sysdeps/mach/hurd/x86_64/longjmp-ts.c Normal file
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/* Perform a `longjmp' on a Mach thread_state. x86_64 version.
Copyright (C) 1991-2023 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <hurd/signal.h>
#include <setjmp.h>
#include <jmpbuf-offsets.h>
#include <mach/thread_status.h>
/* Set up STATE to do the equivalent of `longjmp (ENV, VAL);'. */
void
_hurd_longjmp_thread_state (void *state, jmp_buf env, int val)
{
struct i386_thread_state *ts = state;
ts->rbx = env[0].__jmpbuf[JB_RBX];
ts->rbp = env[0].__jmpbuf[JB_RBP];
ts->r12 = env[0].__jmpbuf[JB_R12];
ts->r13 = env[0].__jmpbuf[JB_R13];
ts->r14 = env[0].__jmpbuf[JB_R14];
ts->r15 = env[0].__jmpbuf[JB_R15];
ts->ursp = env[0].__jmpbuf[JB_RSP];
ts->rip = env[0].__jmpbuf[JB_PC];
ts->rax = val ?: 1;
}