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Add nonnull annotation to posix_memalign. 

GCC 6.0+ asserts that the memptr argument to the builtin function
posix_memalign is nonnull.
Add the necessary annotation to the prototype and
remove the now unnecessary check to fix a warning.

newlib/Changelog
newlib/libc/include/stdlib.h: Annotate arg to posix_memalign as
non-null.

winsup/cygwin/ChangeLog
malloc_wrapper.cc (posix_memalign): Remove always true nonnull check.

Signed-off-by: Peter Foley <pefoley2@pefoley.com>
This commit is contained in:
Peter Foley 2016-03-21 13:15:42 -04:00 committed by Corinna Vinschen
parent 6699e21ffb
commit 3ba2c39fb2
2 changed files with 2 additions and 3 deletions
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2
newlib/libc/include/stdlib.h
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@ -253,7 +253,7 @@ int _EXFUN(_unsetenv_r,(struct _reent *, const char *__string));
#ifdef __rtems__
#if __POSIX_VISIBLE >= 200112
int _EXFUN(posix_memalign,(void **, size_t, size_t));
int _EXFUN(__nonnull (1) posix_memalign,(void **, size_t, size_t));
#endif
#endif

3
winsup/cygwin/malloc_wrapper.cc
View File

@ -126,8 +126,7 @@ posix_memalign (void **memptr, size_t alignment, size_t bytes)
__malloc_unlock ();
if (!res)
return ENOMEM;
if (memptr)
*memptr = res;
*memptr = res;
return 0;
}