1  /* Private macros for accessing __jmp_buf contents.  PowerPC version.
       2     Copyright (C) 2006-2023 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, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #define JB_GPR1   0  /* Also known as the stack pointer */
      20  #define JB_GPR2   1
      21  #define JB_LR     2  /* The address we will return to */
      22  #if __WORDSIZE == 64
      23  # define JB_GPRS   3  /* GPRs 14 through 31 are saved, 18*2 words total.  */
      24  # define JB_CR     21 /* Shared dword with VRSAVE.  CR word at offset 172.  */
      25  # define JB_FPRS   22 /* FPRs 14 through 31 are saved, 18*2 words total.  */
      26  # define JB_SIZE   (64 * 8) /* As per PPC64-VMX ABI.  */
      27  # define JB_VRSAVE 21 /* Shared dword with CR.  VRSAVE word at offset 168.  */
      28  # define JB_VRS    40 /* VRs 20 through 31 are saved, 12*4 words total.  */
      29  #else
      30  # define JB_GPRS   3  /* GPRs 14 through 31 are saved, 18 in total.  */
      31  # define JB_CR     21 /* Condition code registers.  */
      32  # define JB_FPRS   22 /* FPRs 14 through 31 are saved, 18*2 words total.  */
      33  # define JB_SIZE   ((64 + (12 * 4)) * 4)
      34  # define JB_VRSAVE 62
      35  # define JB_VRS    64
      36  #endif