glibc/sysdeps/unix/sysv/linux/mips/____longjmp_chk.c
Paul Eggert 581c785bf3 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2022-01-01 11:40:24 -08:00

42 lines
1.6 KiB
C

/* Copyright (C) 2009-2022 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
<https://www.gnu.org/licenses/>. */
#include <signal.h>
#include <stdio.h>
#define __longjmp ____longjmp_chk
#define CHECK_SP(saved_sp, cur_sp, sp_type) \
do { \
sp_type sp_saved = (sp_type) (saved_sp); \
if (sp_saved < (cur_sp)) \
{ \
struct __jmp_buf_internal_tag *env_save = env_arg; \
int val_save = val_arg; \
stack_t ss; \
int ret = __sigaltstack (NULL, &ss); \
if (ret == 0 \
&& (!(ss.ss_flags & SS_ONSTACK) \
|| ((unsigned sp_type) ((sp_type) (long) ss.ss_sp \
+ (sp_type) ss.ss_size \
- sp_saved) \
< ss.ss_size))) \
__fortify_fail ("longjmp causes uninitialized stack frame"); \
asm volatile ("move %0, %1" : "=r" (env) : "r" (env_save)); \
asm volatile ("move %0, %1" : "=r" (val) : "r" (val_save)); \
} \
} while (0)
#include <__longjmp.c>