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| author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
|---|---|---|
| committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
| commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
| tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/sysdeps/i386/i686/stack-aliasing.h | |
| parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
| download | glibc-zack/build-layout-experiment.tar.gz | |
Prepare for radical source tree reorganization.zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/sysdeps/i386/i686/stack-aliasing.h')
| -rw-r--r-- | REORG.TODO/sysdeps/i386/i686/stack-aliasing.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/i386/i686/stack-aliasing.h b/REORG.TODO/sysdeps/i386/i686/stack-aliasing.h new file mode 100644 index 0000000000..9b5a1b0d47 --- /dev/null +++ b/REORG.TODO/sysdeps/i386/i686/stack-aliasing.h @@ -0,0 +1,23 @@ +/* Define macros for stack address aliasing issues for NPTL. i686 version. + Copyright (C) 2014-2017 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/>. */ + +/* What is useful is to avoid the 64k aliasing problem which reliably + happens if all stacks use sizes which are a multiple of 64k. Tell + the stack allocator to disturb this by allocation one more page if + necessary. */ +#define MULTI_PAGE_ALIASING 65536 |