sysdeps/mach/hurd/powerpc/longjmp-ts.c

   1 /* Perform a `longjmp' on a Mach thread_state.  PowerPC version.
   2    Copyright (C) 1991,94,95,97,2001, 2006 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <hurd/signal.h>
  21 #include <setjmp.h>
  22 #include <jmpbuf-offsets.h>
  23 #include <mach/thread_status.h>
  24
  25
  26 /* Set up STATE to do the equivalent of `longjmp (ENV, VAL);'.  */
  27
  28 void
  29 _hurd_longjmp_thread_state (void *state, jmp_buf env, int val)
  30 {
  31   struct ppc_thread_state *ts = state;
  32
  33   /* XXX should we set up the FPRs as well? And how? */
  34   ts->r1 = env[0].__jmpbuf[JB_GPR1];
  35   ts->r2 = env[0].__jmpbuf[JB_GPR2];
  36   ts->r14 = env[0].__jmpbuf[JB_GPRS+0];
  37   ts->r15 = env[0].__jmpbuf[JB_GPRS+1];
  38   ts->r16 = env[0].__jmpbuf[JB_GPRS+2];
  39   ts->r17 = env[0].__jmpbuf[JB_GPRS+3];
  40   ts->r18 = env[0].__jmpbuf[JB_GPRS+4];
  41   ts->r19 = env[0].__jmpbuf[JB_GPRS+5];
  42   ts->r20 = env[0].__jmpbuf[JB_GPRS+6];
  43   ts->r21 = env[0].__jmpbuf[JB_GPRS+7];
  44   ts->r22 = env[0].__jmpbuf[JB_GPRS+8];
  45   ts->r23 = env[0].__jmpbuf[JB_GPRS+9];
  46   ts->r24 = env[0].__jmpbuf[JB_GPRS+10];
  47   ts->r25 = env[0].__jmpbuf[JB_GPRS+11];
  48   ts->r26 = env[0].__jmpbuf[JB_GPRS+12];
  49   ts->r27 = env[0].__jmpbuf[JB_GPRS+13];
  50   ts->r28 = env[0].__jmpbuf[JB_GPRS+14];
  51   ts->r29 = env[0].__jmpbuf[JB_GPRS+15];
  52   ts->r30 = env[0].__jmpbuf[JB_GPRS+16];
  53   ts->r31 = env[0].__jmpbuf[JB_GPRS+17];
  54   ts->cr = env[0].__jmpbuf[JB_CR];
  55   ts->r3 = val ?: 1;
  56   ts->srr0 = ts->lr = env[0].__jmpbuf[JB_LR];
  57 }