diff options
Diffstat (limited to 'sysdeps/s390/longjmp.c')
| -rw-r--r-- | sysdeps/s390/longjmp.c | 68 |
1 files changed, 23 insertions, 45 deletions
diff --git a/sysdeps/s390/longjmp.c b/sysdeps/s390/longjmp.c index c758d149a4..601f077e1f 100644 --- a/sysdeps/s390/longjmp.c +++ b/sysdeps/s390/longjmp.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2013 Free Software Foundation, Inc. +/* Copyright (C) 2014 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 @@ -15,50 +15,28 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. - Versioned copy of sysdeps/generic/longjmp.c modified for extended - jmpbuf. */ + Versioned copy of setjmp/longjmp.c modified for versioning + the reverted jmpbuf extension. */ #include <shlib-compat.h> -#include <stddef.h> -#include <setjmp.h> -#include <signal.h> -extern void __v2__longjmp (__jmp_buf __env, int __val) - __attribute__ ((__noreturn__)); -extern void __v2__libc_longjmp (sigjmp_buf env, int val) - __attribute__ ((__noreturn__)); -libc_hidden_proto (__v2__libc_longjmp) - -/* Set the signal mask to the one specified in ENV, and jump - to the position specified in ENV, causing the setjmp - call there to return VAL, or 1 if VAL is 0. */ -void -__v2__libc_siglongjmp (sigjmp_buf env, int val) -{ - /* Perform any cleanups needed by the frames being unwound. */ - _longjmp_unwind (env, val); - - if (env[0].__mask_was_saved) - /* Restore the saved signal mask. */ - (void) __sigprocmask (SIG_SETMASK, &env[0].__saved_mask, - (sigset_t *) NULL); - - /* Call the machine-dependent function to restore machine state. */ - __v2__longjmp (env[0].__jmpbuf, val ?: 1); -} - -#ifndef __v2__longjmp -strong_alias (__v2__libc_siglongjmp, __v2__libc_longjmp) -libc_hidden_def (__v2__libc_longjmp) -weak_alias (__v2__libc_siglongjmp, __v2_longjmp) -weak_alias (__v2__libc_siglongjmp, __v2longjmp) -weak_alias (__v2__libc_siglongjmp, __v2siglongjmp) - -/* These will be used by libpthread only. */ -versioned_symbol (libc, __v2__libc_longjmp, __libc_longjmp, GLIBC_PRIVATE); -versioned_symbol (libc, __v2__libc_siglongjmp, __libc_siglongjmp, GLIBC_PRIVATE); - -versioned_symbol (libc, __v2_longjmp, _longjmp, GLIBC_2_19); -versioned_symbol (libc, __v2longjmp, longjmp, GLIBC_2_19); -versioned_symbol (libc, __v2siglongjmp, siglongjmp, GLIBC_2_19); -#endif /* ifndef __v2__longjmp */ +#include <setjmp/longjmp.c> + +#if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20) +/* In glibc release 2.19 new versions of longjmp-functions were introduced, + but were reverted before 2.20. Thus both versions are the same function. */ +weak_alias (__libc_siglongjmp, __v1_longjmp) +weak_alias (__libc_siglongjmp, __v2_longjmp) +versioned_symbol (libc, __v1_longjmp, _longjmp, GLIBC_2_0); +compat_symbol (libc, __v2_longjmp, _longjmp, GLIBC_2_19); + +weak_alias (__libc_siglongjmp, __v1longjmp) +weak_alias (__libc_siglongjmp, __v2longjmp) +versioned_symbol (libc, __v1longjmp, longjmp, GLIBC_2_0); +compat_symbol (libc, __v2longjmp, longjmp, GLIBC_2_19); + +weak_alias (__libc_siglongjmp, __v1siglongjmp) +weak_alias (__libc_siglongjmp, __v2siglongjmp) +versioned_symbol (libc, __v1siglongjmp, siglongjmp, GLIBC_2_0); +compat_symbol (libc, __v2siglongjmp, siglongjmp, GLIBC_2_19); +#endif /* SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20) */ |