diff options
Diffstat (limited to 'REORG.TODO/sysdeps/s390/s390-64/setjmp.S')
| -rw-r--r-- | REORG.TODO/sysdeps/s390/s390-64/setjmp.S | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/s390/s390-64/setjmp.S b/REORG.TODO/sysdeps/s390/s390-64/setjmp.S new file mode 100644 index 0000000000..ac9c878346 --- /dev/null +++ b/REORG.TODO/sysdeps/s390/s390-64/setjmp.S @@ -0,0 +1,118 @@ +/* setjmp for 64 bit S/390, ELF version. + Copyright (C) 2001-2017 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> +#include <shlib-compat.h> +#include <stap-probe.h> + +#if !IS_IN (rtld) && defined SHARED \ + && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20) +# define NEED_COMPAT_SYMBOLS 1 +/* We need a unique name in case of symbol versioning. */ +# define setjmp __v1setjmp +# define _setjmp __v1_setjmp +# define __sigsetjmp __v1__sigsetjmp +#else +# define NEED_COMPAT_SYMBOLS 0 +#endif + + /* We include the BSD entry points here as well. */ +ENTRY (setjmp) + lghi %r3,1 /* Second argument of one. */ + j .Linternal_sigsetjmp /* Branch relativ to __sigsetjmp. */ +END (setjmp) + + /* Binary compatibility entry point. */ +ENTRY(_setjmp) + slgr %r3,%r3 /* Second argument of zero. */ + j .Linternal_sigsetjmp /* Branch relativ to __sigsetjmp. */ +END (_setjmp) +#if NEED_COMPAT_SYMBOLS +strong_alias (_setjmp, __GI__setjmp) +#else +libc_hidden_def (_setjmp) +#endif + +ENTRY(__setjmp) + slgr %r3,%r3 /* Second argument of zero. */ + j .Linternal_sigsetjmp /* Branch relativ to __sigsetjmp. */ +END (__setjmp) + +ENTRY(__sigsetjmp) +.Linternal_sigsetjmp: + /* setjmp probe expects sig/setjmp first argument (8@%r2), second + argument (-8@%r3) and target address (8@%r14). */ + LIBC_PROBE (setjmp, 3, 8@%r2, -4@%r3, 8@%r14) +#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 + 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 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) +#if NEED_COMPAT_SYMBOLS +strong_alias (__sigsetjmp, __GI___sigsetjmp) +#else +libc_hidden_def (__sigsetjmp) +#endif + +#if NEED_COMPAT_SYMBOLS +/* In glibc release 2.19 new versions of setjmp-functions were introduced, + but were reverted before 2.20. Thus both versions are the same function. */ + +# undef setjmp +# undef _setjmp +# undef __sigsetjmp + +strong_alias (__v1setjmp, __v2setjmp); +versioned_symbol (libc, __v1setjmp, setjmp, GLIBC_2_0); +compat_symbol (libc, __v2setjmp, setjmp, GLIBC_2_19); + +strong_alias (__v1_setjmp, __v2_setjmp); +versioned_symbol (libc, __v1_setjmp, _setjmp, GLIBC_2_0); +compat_symbol (libc, __v2_setjmp, _setjmp, GLIBC_2_19); + +strong_alias (__v1__sigsetjmp, __v2__sigsetjmp); +versioned_symbol (libc, __v1__sigsetjmp, __sigsetjmp, GLIBC_2_0); +compat_symbol (libc, __v2__sigsetjmp, __sigsetjmp, GLIBC_2_19); +#endif /* NEED_COMPAT_SYMBOLS */ |