diff options
Diffstat (limited to 'sysdeps/s390/s390-64/setjmp-common.S')
| -rw-r--r-- | sysdeps/s390/s390-64/setjmp-common.S | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/sysdeps/s390/s390-64/setjmp-common.S b/sysdeps/s390/s390-64/setjmp-common.S new file mode 100644 index 0000000000..9cdcae45c5 --- /dev/null +++ b/sysdeps/s390/s390-64/setjmp-common.S @@ -0,0 +1,79 @@ +/* setjmp for 64 bit S/390, ELF version. + Copyright (C) 2001-2014 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + 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/>. */ + +#include <sysdep.h> +#define _ASM +#define _SETJMP_H +#include <bits/setjmp.h> + + /* We include the BSD entry points here as well but we make + them weak. */ +ENTRY (setjmp) + .weak C_SYMBOL_NAME (setjmp) + lghi %r3,1 /* Second argument of one. */ + j 0f /* Branch relativ to __sigsetjmp. */ +END (setjmp) + + /* Binary compatibility entry point. */ +ENTRY(_setjmp) + .weak C_SYMBOL_NAME (_setjmp) + slgr %r3,%r3 /* Second argument of zero. */ + j 0f /* Branch relativ to __sigsetjmp. */ +END (_setjmp) +libc_hidden_def (_setjmp) + +ENTRY(__setjmp) + slgr %r3,%r3 /* Second argument of zero. */ + j 0f /* Branch relativ to __sigsetjmp. */ +END (__setjmp) + +ENTRY(__sigsetjmp) +0: +#ifdef PTR_MANGLE + stmg %r6,%r13,0(%r2) /* Store registers in jmp_buf. */ + lgr %r4,%r14 + lgr %r5,%r15 + PTR_MANGLE (%r4, %r1) + PTR_MANGLE2 (%r5, %r1) + stmg %r4,%r5,64(%r2) +#else + stmg %r6,%r15,0(%r2) /* Store registers in jmp_buf. */ +#endif +#ifndef __V1_JMPBUF + lghi %r4,0 + stg %r4,144(%r2) /* Set __flags to 0. */ +#endif + std %f8,80(%r2) + std %f9,88(%r2) + std %f10,96(%r2) + std %f11,104(%r2) + std %f12,112(%r2) + std %f13,120(%r2) + std %f14,128(%r2) + std %f15,136(%r2) +#if defined NOT_IN_libc && defined IS_IN_rtld + /* In ld.so we never save the signal mask. */ + lghi %r2,0 + br %r14 +#elif defined PIC + jg __sigjmp_save@PLT /* Branch to PLT of __sigsetjmp. */ +#else + jg __sigjmp_save +#endif +END (__sigsetjmp) |