diff options
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/m68k/____longjmp_chk.c')
| -rw-r--r-- | ports/sysdeps/unix/sysv/linux/m68k/____longjmp_chk.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/m68k/____longjmp_chk.c b/ports/sysdeps/unix/sysv/linux/m68k/____longjmp_chk.c new file mode 100644 index 0000000000..d0d0e410d1 --- /dev/null +++ b/ports/sysdeps/unix/sysv/linux/m68k/____longjmp_chk.c @@ -0,0 +1,38 @@ +/* Copyright (C) 2009 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/>. */ + +#include <stdio.h> +#include <signal.h> +#include <sysdep.h> +#define __longjmp ____longjmp_chk +#define CHECK_SP(sp) \ + do { \ + register unsigned long this_sp asm ("sp"); \ + if ((unsigned long) (sp) < this_sp) \ + { \ + struct sigaltstack oss; \ + INTERNAL_SYSCALL_DECL (err); \ + int result = INTERNAL_SYSCALL (sigaltstack, err, 2, NULL, &oss); \ + if (!INTERNAL_SYSCALL_ERROR_P (result, err) \ + && ((oss.ss_flags & SS_ONSTACK) == 0 \ + || ((unsigned long) oss.ss_sp + oss.ss_size \ + - (unsigned long) (sp)) < oss.ss_size)) \ + __fortify_fail ("longjmp causes uninitialized stack frame"); \ + } \ + } while (0) + +#include <__longjmp.c> |