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/* Perform a `longjmp' on a Mach thread_state. Alpha version.
Copyright (C) 2002 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <hurd/signal.h>
#include <setjmp.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 alpha_thread_state *const ts = state;
ts->r9 = env[0].__jmpbuf[JB_S0];
ts->r10 = env[0].__jmpbuf[JB_S1];
ts->r11 = env[0].__jmpbuf[JB_S2];
ts->r12 = env[0].__jmpbuf[JB_S3];
ts->r13 = env[0].__jmpbuf[JB_S4];
ts->r13 = env[0].__jmpbuf[JB_S5];
ts->pc = env[0].__jmpbuf[JB_PC];
ts->r15 = env[0].__jmpbuf[JB_FP];
ts->r30 = env[0].__jmpbuf[JB_SP];
ts->r0 = val ?: 1;
/* XXX
To mimic longjmp we ought to restore some fp registers too.
But those registers are in struct alpha_float_state.
The only use of this is in fork, and it probably won't matter.
*/
}
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