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| author | Olivier Hainque <hainque@adacore.com> | 2008-07-19 17:49:18 +0000 |
|---|---|---|
| committer | Olivier Hainque <hainque@gcc.gnu.org> | 2008-07-19 17:49:18 +0000 |
| commit | 953316147f5c41b3a0822ca63b39ea4ce2d942cd (patch) | |
| tree | 795260e8dc7f7962b579f40cd7ab751d17f86412 /gcc/doc | |
| parent | d1a296c11ab091c896267dee5a3d831731fd3143 (diff) | |
| download | gcc-953316147f5c41b3a0822ca63b39ea4ce2d942cd.zip gcc-953316147f5c41b3a0822ca63b39ea4ce2d942cd.tar.gz gcc-953316147f5c41b3a0822ca63b39ea4ce2d942cd.tar.bz2 | |
tm.texi (MALLOC_ABI_ALIGNMENT): New macro.
* doc/tm.texi (MALLOC_ABI_ALIGNMENT): New macro. Alignment, in bits,
a C conformant malloc implementation has to provide.
* defaults.h (MALLOC_ABI_ALIGNMENT): Default to BITS_PER_WORD.
ada/
* targtyps.c (get_target_default_allocator_alignment): Use it.
testsuite/
* gcc.dg/mallign.c: New test.
* gnat.dg/allocator_maxalign1.adb: New test.
* gnat.dg/test_allocator_maxalign2.adb: Main caller for ...
* gnat.dg/allocator_maxalign2.ad[bs]: New test.
From-SVN: r137984
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/tm.texi | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 5860018..e238797e 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -1095,6 +1095,11 @@ bits. Note that this is not the biggest alignment that is supported, just the biggest alignment that, when violated, may cause a fault. @end defmac +@defmac MALLOC_ABI_ALIGNMENT +Alignment, in bits, a C conformant malloc implementation has to +provide. If not defined, the default value is @code{BITS_PER_WORD}. +@end defmac + @defmac MINIMUM_ATOMIC_ALIGNMENT If defined, the smallest alignment, in bits, that can be given to an object that can be referenced in one operation, without disturbing any |