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Hans Boehm c8cf3513ec Fix, generalize stdatomic.h; improve test.

We seem to use this stdatomic.h sometimes, and slightly different prebuilts
at other times, making them all difficult to test, and making it unclear
which one we're testing.  This generalizes the bionic header so that it
can be used directly as the prebuilt header as well.  So long as they
don't diverge again, that should somewhat improve test coverage.

Use the correct builtin for atomic_is_lock_free.

Fix atomic_flag_init.

Turn on atomic tests even with __GLIBC__, since they now appear to pass.

Include uchar.h in stdatomic.h where needed.

Add a basic memory ordering test.

Fix bit-rotted comments in bionic tests makefile.

Prerequisite for fixing b/16880454 and

Bug:16513433

Change-Id: If6a14c1075b379395ba5d93357d56025c0ffab68
(cherry picked from commit 00aaea364501b3b0abe58dae461136159df1e356)

2014-09-02 10:32:33 -07:00

benchmarks

Start hiding "private/bionic_time.h".

2014-07-25 15:24:57 -07:00

libc

Fix, generalize stdatomic.h; improve test.

2014-09-02 10:32:33 -07:00

libdl

Turn on -Wunused and fix the mistakes it uncovers.

2014-06-03 15:22:34 -07:00

libm

Use __GNUC_PREREQ rather than __GNUC_PREREQ__ to match glibc.