sysdeps/powerpc/jmpbuf-offsets.h

   1 /* Private macros for accessing __jmp_buf contents.  PowerPC version.
   2    Copyright (C) 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 #define JB_GPR1   0  /* Also known as the stack pointer */
  21 #define JB_GPR2   1
  22 #define JB_LR     2  /* The address we will return to */
  23 #if __WORDSIZE == 64
  24 # define JB_GPRS   3  /* GPRs 14 through 31 are saved, 18*2 words total.  */
  25 # define JB_CR     21 /* Condition code registers with the VRSAVE at */
  26                        /* offset 172 (low half of the double word.  */
  27 # define JB_FPRS   22 /* FPRs 14 through 31 are saved, 18*2 words total.  */
  28 # define JB_SIZE   (64 * 8) /* As per PPC64-VMX ABI.  */
  29 # define JB_VRSAVE 21 /* VRSAVE shares a double word with the CR at offset */
  30                        /* 168 (high half of the double word).  */
  31 # define JB_VRS    40 /* VRs 20 through 31 are saved, 12*4 words total.  */
  32 #else
  33 # define JB_GPRS   3  /* GPRs 14 through 31 are saved, 18 in total.  */
  34 # define JB_CR     21 /* Condition code registers.  */
  35 # define JB_FPRS   22 /* FPRs 14 through 31 are saved, 18*2 words total.  */
  36 # define JB_SIZE   ((64 + (12 * 4)) * 4)
  37 # define JB_VRSAVE 62
  38 # define JB_VRS    64
  39 #endif