sysdeps/powerpc/powerpc32/__longjmp-common.S

   1 /* longjmp for PowerPC.
   2    Copyright (C) 1995-1997, 1999-2001, 2003, 2004, 2005, 2006, 2009
   3         Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 #include <sysdep.h>
  21 #define _ASM
  22 #ifdef __NO_VMX__
  23 # include <novmxsetjmp.h>
  24 #else
  25 # include <jmpbuf-offsets.h>
  26 #endif
  27 #include <bp-sym.h>
  28 #include <bp-asm.h>
  29
  30 ENTRY (BP_SYM (__longjmp))
  31         CHECK_BOUNDS_BOTH_WIDE_LIT (r3, r8, r9, JB_SIZE)
  32
  33 #if defined PTR_DEMANGLE || defined CHECK_SP
  34         lwz r24,(JB_GPR1*4)(r3)
  35 # ifdef CHECK_SP
  36 #  ifdef PTR_DEMANGLE
  37         PTR_DEMANGLE3 (r24, r24, r25)
  38 #  endif
  39         CHECK_SP (r24)
  40         mr r1,r24
  41 # endif
  42 #else
  43         lwz r1,(JB_GPR1*4)(r3)
  44 #endif
  45         lwz r0,(JB_LR*4)(r3)
  46         lwz r14,((JB_GPRS+0)*4)(r3)
  47         lwz r15,((JB_GPRS+1)*4)(r3)
  48         lwz r16,((JB_GPRS+2)*4)(r3)
  49         lwz r17,((JB_GPRS+3)*4)(r3)
  50         lwz r18,((JB_GPRS+4)*4)(r3)
  51         lwz r19,((JB_GPRS+5)*4)(r3)
  52         lwz r20,((JB_GPRS+6)*4)(r3)
  53 #ifdef PTR_DEMANGLE
  54 # ifndef CHECK_SP
  55         PTR_DEMANGLE3 (r1, r24, r25)
  56 # endif
  57         PTR_DEMANGLE2 (r0, r25)
  58 #endif
  59         mtlr r0
  60         lwz r21,((JB_GPRS+7)*4)(r3)
  61         lwz r22,((JB_GPRS+8)*4)(r3)
  62         lwz r0,(JB_CR*4)(r3)
  63         lwz r23,((JB_GPRS+9)*4)(r3)
  64         lwz r24,((JB_GPRS+10)*4)(r3)
  65         lwz r25,((JB_GPRS+11)*4)(r3)
  66         mtcrf 0xFF,r0
  67         lwz r26,((JB_GPRS+12)*4)(r3)
  68         lwz r27,((JB_GPRS+13)*4)(r3)
  69         lwz r28,((JB_GPRS+14)*4)(r3)
  70         lwz r29,((JB_GPRS+15)*4)(r3)
  71         lwz r30,((JB_GPRS+16)*4)(r3)
  72         lwz r31,((JB_GPRS+17)*4)(r3)
  73         mr r3,r4
  74         blr
  75 END (BP_SYM (__longjmp))