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| author | H.J. Lu <hjl.tools@gmail.com> | 2017-06-29 10:26:04 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2017-06-30 07:43:58 -0700 |
| commit | 1c13144a6252b1edc40c4900c6ea683aea6fc691 (patch) | |
| tree | a08c9f0bfeb03610ff3025aadcf88967a06e870b /sysdeps/i386/malloc-alignment.h | |
| parent | b606c6ce66d4772068bfe3e410c28a247633ee24 (diff) | |
| download | glibc-hjl/pr21120/master.tar.gz glibc-hjl/pr21120/master.tar.xz glibc-hjl/pr21120/master.zip | |
i386: Increase MALLOC_ALIGNMENT to 16 [BZ #21120] hjl/pr21120/master
GCC 7 changed the definition of max_align_t on i386: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=9b5c49ef97e63cc63f1ffa13baf771368105ebe2 As a result, glibc malloc no longer returns memory blocks which are as aligned as max_align_t requires. This causes malloc/tst-malloc-thread-fail to fail with an error like this one: error: allocation function 0, size 144 not aligned to 16 This patch moves the MALLOC_ALIGNMENT definition to <malloc-alignment.h> and increases the malloc alignment to 16 for i386. [BZ #21120] * malloc/malloc-internal.h (MALLOC_ALIGNMENT): Moved to ... * sysdeps/generic/malloc-alignment.h: Here. New file. * sysdeps/i386/malloc-alignment.h: Likewise. * sysdeps/generic/malloc-machine.h: Include <malloc-alignment.h>.
Diffstat (limited to 'sysdeps/i386/malloc-alignment.h')
| -rw-r--r-- | sysdeps/i386/malloc-alignment.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/sysdeps/i386/malloc-alignment.h b/sysdeps/i386/malloc-alignment.h new file mode 100644 index 0000000000..f72f7a8f14 --- /dev/null +++ b/sysdeps/i386/malloc-alignment.h @@ -0,0 +1,24 @@ +/* Define MALLOC_ALIGNMENT for malloc. i386 version. + Copyright (C) 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/>. */ + +#ifndef _I386_MALLOC_ALIGNMENT_H +#define _I386_MALLOC_ALIGNMENT_H + +#define MALLOC_ALIGNMENT 16 + +#endif /* !defined(_I386_MALLOC_ALIGNMENT_H) */ |