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[glibc/history.git] / sysdeps / powerpc / jmpbuf-offsets.h
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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.
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.
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.
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. */
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