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Remove GCC's __nonnull() attribute definition.

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While GCC's __nonnull__ attribute is generally useful to prevent misuse of
some functions it also tends to do rather dangerous "optimizations". Now
that we have replaced (r312934) all such uses with the clang nullability
qualifiers, the GCC attribute is unnecessary.

Remove the definition completely to prevent its use in system's headers.
This commit is contained in:
Pedro F. Giffuni 2017-01-29 00:45:52 +00:00
parent dad206bd67
commit 4ceff30f95
1 changed files with 0 additions and 8 deletions
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8
sys/sys/cdefs.h
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@ -375,14 +375,6 @@
#define __noinline
#endif
#if __GNUC_PREREQ__(3, 3)
#define __nonnull(x) __attribute__((__nonnull__(x)))
#define __nonnull_all __attribute__((__nonnull__))
#else
#define __nonnull(x)
#define __nonnull_all
#endif
#if __GNUC_PREREQ__(3, 4)
#define __fastcall __attribute__((__fastcall__))
#define __result_use_check __attribute__((__warn_unused_result__))