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nptl: Cleanup mutex internal offset tests

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The offsets of pthread_mutex_t __data.__nusers, __data.__spins,
__data.elision, __data.list are not required to be constant over
the releases.  Only the __data.__kind is used for static
initializers.

This patch also adds an additional size check for __data.__kind.

Checked with a build against affected ABIs.

Change-Id: I7a4e48cc91b4c4ada57e9a5d1b151fb702bfaa9f
This commit is contained in:
Adhemerval Zanella
2019-11-07 20:58:41 +00:00
parent 7fc8c286e3
commit 71d260c107
19 changed files with 6 additions and 94 deletions
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3
nptl/pthreadP.h
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@ -617,5 +617,8 @@ check_stacksize_attr (size_t st)
_Static_assert (offsetof (type, member) == offset, \
"offset of " #member " field of " #type " != " \
ASSERT_PTHREAD_STRING (offset))
#define ASSERT_PTHREAD_INTERNAL_MEMBER_SIZE(type, member, mtype) \
_Static_assert (sizeof (((type) { 0 }).member) != 8, \
"sizeof (" #type "." #member ") != sizeof (" #mtype "))")
#endif /* pthreadP.h */