longjmp-ts.c

Glibc 2.3.2源代码(解压后有100多M)

/* Perform a `longjmp' on a Mach thread_state.  MIPS version.
   Copyright (C) 1996, 1997 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 mips_thread_state *ts = state;

  ts->r16 = env[0].__jmpbuf[0].__regs[0];
  ts->r17 = env[0].__jmpbuf[0].__regs[1];
  ts->r18 = env[0].__jmpbuf[0].__regs[2];
  ts->r19 = env[0].__jmpbuf[0].__regs[3];
  ts->r20 = env[0].__jmpbuf[0].__regs[4];
  ts->r21 = env[0].__jmpbuf[0].__regs[5];
  ts->r22 = env[0].__jmpbuf[0].__regs[6];
  ts->r23 = env[0].__jmpbuf[0].__regs[7];
  ts->r28 = (int) env[0].__jmpbuf[0].__gp;
  ts->r29 = (int) env[0].__jmpbuf[0].__sp;
  ts->r30 = (int) env[0].__jmpbuf[0].__fp;
  ts->pc = (int) env[0].__jmpbuf[0].__pc;
  ts->r2 = val ?: 1;
}