mirror of
https://sourceware.org/git/glibc.git
synced 2025-05-02 22:44:47 +03:00
2b778ceb40
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 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
38 lines
1.6 KiB
C
38 lines
1.6 KiB
C
/* Definition of __INDIRECT_RETURN. x86 version.
|
|
Copyright (C) 2018-2021 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/>. */
|
|
|
|
#ifndef _UCONTEXT_H
|
|
# error "Never include <bits/indirect-return.h> directly; use <ucontext.h> instead."
|
|
#endif
|
|
|
|
/* On x86, swapcontext returns via indirect branch when the shadow stack
|
|
is enabled. Define __INDIRECT_RETURN to indicate whether swapcontext
|
|
returns via indirect branch. */
|
|
#if defined __CET__ && (__CET__ & 2) != 0
|
|
# if __glibc_has_attribute (__indirect_return__)
|
|
# define __INDIRECT_RETURN __attribute__ ((__indirect_return__))
|
|
# else
|
|
/* Newer compilers provide the indirect_return attribute, but without
|
|
it we can use returns_twice to affect the optimizer in the same
|
|
way and avoid unsafe optimizations. */
|
|
# define __INDIRECT_RETURN __attribute__ ((__returns_twice__))
|
|
# endif
|
|
#else
|
|
# define __INDIRECT_RETURN
|
|
#endif
|