| /* Copyright (C) 1997-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| /* Define the machine-dependent type `jmp_buf'. PowerPC version. */ |
| #ifndef _BITS_SETJMP_H |
| #define _BITS_SETJMP_H 1 |
| |
| #if !defined _SETJMP_H && !defined _PTHREAD_H |
| # error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead." |
| #endif |
| |
| /* The previous bits/setjmp.h had __jmp_buf defined as a structure. |
| We use an array of 'long int' instead, to make writing the |
| assembler easier. Naturally, user code should not depend on |
| either representation. */ |
| |
| #include <bits/wordsize.h> |
| |
| /* The current powerpc 32-bit Altivec ABI specifies for SVR4 ABI and EABI |
| the vrsave must be at byte 248 & v20 at byte 256. So we must pad this |
| correctly on 32 bit. It also insists that vecregs are only gauranteed |
| 4 byte alignment so we need to use vperm in the setjmp/longjmp routines. |
| We have to version the code because members like int __mask_was_saved |
| in the jmp_buf will move as jmp_buf is now larger than 248 bytes. We |
| cannot keep the altivec jmp_buf backward compatible with the jmp_buf. */ |
| #ifndef _ASM |
| # if __WORDSIZE == 64 |
| typedef long int __jmp_buf[64] __attribute__ ((__aligned__ (16))); |
| # else |
| /* The alignment is not essential, i.e.the buffer can be copied to a 4 byte |
| aligned buffer as per the ABI it is just added for performance reasons. */ |
| typedef long int __jmp_buf[64 + (12 * 4)] __attribute__ ((__aligned__ (16))); |
| # endif |
| #endif |
| |
| #endif /* bits/setjmp.h */ |