Commit graph

21 commits

Author SHA1 Message Date
Elliott Hughes
a41ba2f0bf Fix pthread_setname_np's behavior on invalid pthread_ts.
Change-Id: I0a154beaab4d164ac812f2564d12e4d79b80a8e8
2013-03-21 20:02:35 -07:00
Elliott Hughes
fae89fc404 Fix raise(3) so it works in signal handlers.
We could special-case raise(3) in non-threaded programs, but the more
conservative course is to make pthread_kill(3) work in signal handlers
at the cost of a race shared by other C libraries.

Change-Id: I59fb23d03bdabf403435e731704b33acdf3e0234
2013-02-21 11:22:23 -08:00
Elliott Hughes
9d23e04c43 Fix pthreads functions that should return ESRCH.
imgtec pointed out that pthread_kill(3) was broken, but most of the
other functions that ought to return ESRCH for invalid/exited threads
were equally broken.

Change-Id: I96347f6195549aee0c72dc39063e6c5d06d2e01f
2013-02-19 12:21:41 -08:00
Elliott Hughes
40eabe24e4 Fix the pthread_setname_np test.
Fix the pthread_setname_np test to take into account that emulator kernels are
so old that they don't support setting the name of other threads.

The CLONE_DETACHED thread is obsolete since 2.5 kernels.

Rename kernel_id to tid.

Fix the signature of __pthread_clone.

Clean up the clone and pthread_setname_np implementations slightly.

Change-Id: I16c2ff8845b67530544bbda9aa6618058603066d
2013-02-15 12:08:59 -08:00
Elliott Hughes
7fd803cdfa Fix the stack protector death test.
Now __stack_chk_fail calls abort(3) directly, we terminate with
SIGSEGV rather than SIGABRT. (Because of the workaround for the
debuggerd lossage in the abort(3) implementation, which was the
motivation for switching __stack_chk_fail over to abort(3).)

Also clarify the comment on the weird pthread death test, so it
doesn't get copied and pasted onto real death tests.

Change-Id: Ie832eaded61359c99e7a10db65e28f35e8f63eed
2013-02-14 16:35:58 -08:00
Elliott Hughes
9701d4b701 Give up trying to build the pthread_setname_np tests for glibc.
Looks like using /usr/bin/g++ isn't enough on some of our older
build servers.

Change-Id: Id7681fb164eb6324b10050f6bb237393e95b41e9
2013-02-12 17:55:22 -08:00
Elliott Hughes
3e898476c7 Revert "Revert "More pthreads cleanup.""
This reverts commit 6f94de3ca4

(Doesn't try to increase the number of TLS slots; that leads to
an inability to boot. Adds more tests.)

Change-Id: Ia7d25ba3995219ed6e686463dbba80c95cc831ca
2013-02-12 15:27:18 -08:00
Elliott Hughes
fcaf4e9f9b Merge "Revert "More pthreads cleanup."" 2013-02-12 06:07:32 +00:00
Elliott Hughes
6f94de3ca4 Revert "More pthreads cleanup."
This reverts commit 2a1bb4e646

Change-Id: Ia443d0748015c8e9fc3121e40e68258616767b51
2013-02-12 06:06:22 +00:00
Elliott Hughes
85f491f96d Merge "More pthreads cleanup." 2013-02-12 02:33:08 +00:00
Elliott Hughes
5e3fc43dde Fix __pthread_clone on ARM to set errno on failure.
MIPS and x86 appear to have been correct already.

(Also fix unit tests that ASSERT_EQ with errno so that the
arguments are in the retarded junit order.)

Bug: 3461078
Change-Id: I2418ea98927b56e15b4ba9cfec97f5e7094c6291
2013-02-11 16:39:10 -08:00
Elliott Hughes
2a1bb4e646 More pthreads cleanup.
POSIX says pthread_create returns EAGAIN, not ENOMEM.

Also pull pthread_attr_t functions into their own file.

Also pull pthread_setname_np into its own file.

Also remove unnecessary #includes from pthread_key.cpp.

Also account for those pthread keys used internally by bionic,
so they don't count against the number of keys available to user
code. (They do with glibc, but glibc's limit is the much more
generous 1024.)

Also factor out the common errno-restoring idiom to reduce gotos.

Bug: 6702535
Change-Id: I555e66efffcf2c1b5a2873569e91489156efca42
2013-02-11 14:56:39 -08:00
Elliott Hughes
44b53ad681 Revert "Revert "Pull the pthread_key_t functions out of pthread.c.""
This reverts commit 6260553d48

(Removing the accidental libm/Android.mk change.)

Change-Id: I6cddd9857c31facc05636e8221505b3d2344cb75
2013-02-11 12:20:33 -08:00
Elliott Hughes
6260553d48 Revert "Pull the pthread_key_t functions out of pthread.c."
This reverts commit ad59322ae4

somehow my unfinished libm/Android.mk change got into here.

Change-Id: I46be626c5269d60fb1ced9862f2ebaa380b4e0af
2013-02-11 20:18:16 +00:00
Elliott Hughes
ad59322ae4 Pull the pthread_key_t functions out of pthread.c.
This was originally motivated by noticing that we were setting the
wrong bits for the well-known tls entries. That was a harmless bug
because none of the well-known tls entries has a destructor, but
it's best not to leave land mines lying around.

Also add some missing POSIX constants, a new test, and fix
pthread_key_create's return value when we hit the limit.

Change-Id: Ife26ea2f4b40865308e8410ec803b20bcc3e0ed1
2013-02-11 12:00:48 -08:00
Elliott Hughes
c5d028fc91 Only have one copy of the kernel_sigset_t hack, and add more tests.
Change-Id: I377522fcba6fb4b5fd2754ab15b091014bd7c16f
2013-01-10 14:42:14 -08:00
Elliott Hughes
4f251bee5d Don't corrupt the thread list if the main thread exits.
...and don't pass a non-heap pointer to free(3), either.

This patch replaces the "node** prev" with the clearer "node* prev"
style and fixes the null pointer dereference in the old code. That's
not sufficient to fix the reporter's bug, though. The pthread_internal_t*
for the main thread isn't heap-allocated --- __libc_init_tls causes a
pointer to a statically-allocated pthread_internal_t to be added to
the thread list.

Bug: http://code.google.com/p/android/issues/detail?id=37410
Change-Id: I112b7f22782fc789d58f9c783f7b323bda8fb8b7
2012-11-01 17:27:07 -07:00
Sergey Melnikov
10ce96944e Fix bug in pthread_join, pthread_exit, pthread_detach
pthread_no_op_detach_after_join test from bionic-unit-tests hangs
on x86 emulator. There is a race in the pthread_join, pthread_exit,
pthread_detach functions:
- pthread_join waits for the non-detached thread
- pthread_detach sets the detached flag on that thread
- the thread executes pthread_exit which just kills the now-detached
thread, without sending the join notification.

This patch improves the test so it fails on ARM too, and modifies
pthread_detach to behave more like glibc, not setting the detach state if
called on a thread that's already being joined (but not returning an error).

Change-Id: I87dc688221ce979ef5178753dd63d01ac0b108e6
Signed-off-by: Sergey Melnikov <sergey.melnikov@intel.com>
2012-10-29 11:31:26 -07:00
Elliott Hughes
14f19592ae Fix the pthread_join on self error case.
We should return EDEADLK, not deadlock the calling thread.

Change-Id: I1243483f709c11b2a60e41142725c54c7dbfcbc9
2012-10-29 10:19:44 -07:00
Elliott Hughes
4d014e15b4 Add more pthreads tests.
Someone reported a bug if pthread_detach is called while a pthread_join is
already in progress, but I'm unable to reproduce it. Keep the tests I wrote,
though.

Change-Id: I3d71450bbbb5345f2cb213dc56310ec020d528cc
2012-09-07 16:47:54 -07:00
Elliott Hughes
bfeab1bbe7 Don't corrupt the thread list in static executables.
Several previous changes conspired to make a mess of the thread list
in static binaries. This was most obvious when trying to call
pthread_key_delete(3) on the main thread.

Bug: http://code.google.com/p/android/issues/detail?id=36893
Change-Id: I2a2f553114d8fb40533c481252b410c10656da2e
2012-09-05 17:47:37 -07:00