| /* Copyright (C) 2013 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/>. |
| |
| Versioned copy of sysdeps/generic/longjmp.c modified for extended |
| jmpbuf. */ |
| |
| #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 */ |
