From 8dd9c51eb2f6c5dc659b426dc3bd114751adb405 Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Thu, 31 Jan 2002 15:49:34 +0000 Subject: Fixup setjmp and longjmp so they behave themselves properly now on both x86 and arm... -Erik --- libc/sysdeps/linux/common/longjmp.c | 46 +++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 libc/sysdeps/linux/common/longjmp.c (limited to 'libc/sysdeps/linux/common/longjmp.c') diff --git a/libc/sysdeps/linux/common/longjmp.c b/libc/sysdeps/linux/common/longjmp.c new file mode 100644 index 000000000..95c7fef48 --- /dev/null +++ b/libc/sysdeps/linux/common/longjmp.c @@ -0,0 +1,46 @@ +/* Copyright (C) 1991, 92, 94, 95, 97, 98, 2000 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include +#include +#include + + +/* 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 __libc_siglongjmp (sigjmp_buf env, int val) +{ +#if 0 + /* Perform any cleanups needed by the frames being unwound. */ + _longjmp_unwind (env, val); +#endif + + 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. */ + __longjmp (env[0].__jmpbuf, val ?: 1); +} + +strong_alias (__libc_siglongjmp, __libc_longjmp) +weak_alias (__libc_siglongjmp, _longjmp) +weak_alias (__libc_siglongjmp, longjmp) +weak_alias (__libc_siglongjmp, siglongjmp) -- cgit v1.2.3