| 1543fdf616ddebee7819214437527f380e5c743b |
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08-Oct-2014 |
Elliott Hughes <enh@google.com> |
Work around a bug in Immersion's libImmEmulatorJ.so.
This library calls pthread_mutex_lock and pthread_mutex_unlock with a NULL
pthread_mutex_t*. This gives them (and their users) one release to fix things.
Bug: 17443936
(cherry picked from commit 7d3f553f989f830976efa92ddc3c84661d4d42aa)
Change-Id: Ie26bbecd3a74d61113b51c18832872499b97ee86
(cherry picked from commit b5e7eba6d1b97e471996fcfe7dbde7cbba7512ef)
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| b5e7eba6d1b97e471996fcfe7dbde7cbba7512ef |
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08-Oct-2014 |
Elliott Hughes <enh@google.com> |
Work around a bug in Immersion's libImmEmulatorJ.so.
This library calls pthread_mutex_lock and pthread_mutex_unlock with a NULL
pthread_mutex_t*. This gives them (and their users) one release to fix things.
Bug: 17443936
(cherry picked from commit 7d3f553f989f830976efa92ddc3c84661d4d42aa)
Change-Id: Ie26bbecd3a74d61113b51c18832872499b97ee86
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| 26c1420fbb68916d66a8621b5efe8bb25cfdad7b |
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30-Jul-2014 |
Elliott Hughes <enh@google.com> |
Revert "Added a bionic systrace class and tracing to pthread_mutex.cpp."
This reverts commit a09fe118b1a5eb876ddaa2620965c4a8fb8b007c.
Change-Id: Ia2eb07b57a25dc2ac76fecc0925efb2bed998156
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| a09fe118b1a5eb876ddaa2620965c4a8fb8b007c |
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22-Jul-2014 |
Brigid Smith <brigidsmith@google.com> |
Added a bionic systrace class and tracing to pthread_mutex.cpp.
bionic_systrace.h contains an implementation of tracing that
can be used with systrace.py and its associated viewer. pthread_mutex
now uses this tracing to track pthread_mutex contention, which can be
enabled by using the "bionic" command line option to systrace.
Bug: 15116468
(cherry picked from commit a406ee6d5f616192e9a13afad6ac6a9969814fc1)
Change-Id: Ic98fc303689fe9384974150d0d258c50806a55e4
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| 624996026b844ff2eba2283f4dc83ec363d85a11 |
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29-May-2014 |
Elliott Hughes <enh@google.com> |
Minor style cleanup of some code I had to look at.
(It turns out that this is the only place we're saying __inline in C++.)
Change-Id: I8095e67a385087817c47caab9a621f82f8e0cfc8
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| ff03a7aaade5826e3708f6e320d0612d4cdbdb72 |
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28-May-2014 |
Brigid Smith <brigidsmith@google.com> |
Updated ambiguous comment in pthread_mutex_lock.
The comment used the phrase "normal case" when it more specifically refers to the "recursive case," so I changed it to that.
Change-Id: I8335cce4dee933c6a463aee653b28bd986b5b5e4
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| 2ea60ff0b415ad5b135f498a38c4b56ea75215aa |
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22-May-2014 |
Elliott Hughes <enh@google.com> |
Remove unnecessary #includes of <sys/atomics.h>.
Bug: 14903517
Change-Id: I7b5bcebe58774a441da986cc02376dd88e00ea0e
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| 07f1ded1399805fa9367f4db2936832b0c22b7a5 |
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14-May-2014 |
Elliott Hughes <enh@google.com> |
Remove the broken pthread deadlock prediction.
This hasn't built in over one release cycle and no one even noticed.
art does this the right way and other projects should do the same.
Change-Id: I7d1fb84c4080e008f329ee73e209ce85a36e6d55
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| b676aafad04f88e36658d4468054375158dbd3c1 |
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11-Apr-2014 |
Elliott Hughes <enh@google.com> |
Remove unnecessary #includes.
Change-Id: Ie7e0c9ea03f35517c7dcf09fc808c12e55262bc1
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| 39b644a0e270df453c53d6060cd364391bb1c512 |
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04-Mar-2014 |
Elliott Hughes <enh@google.com> |
Remove dead NULL checks from pthread code.
GCC is removing these checks anyway because it knows the arguments
must be non-null, so leaving this code around is just confusing.
We know from experience that people were shipping code with locking
bugs because they weren't checking for error returns. Failing hard
like glibc does seems the better choice. (And it's what the checked
in code was already doing; this patch doesn't change that. It just
makes it more obvious that that's what's going on.)
Change-Id: I167c6d7c0a296822baf0cb9b43b97821eba7ab35
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| 0e714a5b41451e84c5ded93a42c9a4b0a9440691 |
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04-Mar-2014 |
Elliott Hughes <enh@google.com> |
Implement POSIX pthread_mutex_timedlock.
This replaces the non-standard pthread_mutex_lock_timeout_np, which we have
to keep around on LP32 for binary compatibility.
Change-Id: I098dc7cd38369f0c1bec1fac35687fbd27392e00
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| 9e79af3b61b5a617c537862ebe72248beff58f19 |
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18-Dec-2013 |
Elliott Hughes <enh@google.com> |
Small style cleanup.
Change-Id: Ib45a4a2296232968296f9bd7cc3592ba46fd412d
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| 4fae14f3335375714be3104742fa69fe65b02001 |
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17-Dec-2013 |
Ken Mixter <kmixter@google.com> |
Properly detect timeout in pthread_mutex_lock_timeout_np_impl
Previously we were checking against a positive errno which
would not be returned from a system call.
Change-Id: I8e3a36f6fbf5ccc2191a152a1def37e2d6f93124
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| dff7203ee99ccac446b9a1c4371753a5216c6db4 |
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11-Dec-2013 |
Elliott Hughes <enh@google.com> |
Remove harmful attempts to be helpful in pthread_mutex functions.
Most callers won't check for EINVAL, so it's best to fail early.
GCC takes the nonnull attribute as a guarantee that an argument
won't be NULL, so these hacks were already ineffective, which is
how we found that at least one commercial game was using NULL
as if it's a mutex, but actually getting no-op behavior.
Bug: 11971278
Change-Id: I89646e043d931778805a8b692e07a34d076ee6bf
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| 36d6188f8cd8b948fb797f11d9620d63d0c2215a |
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19-Nov-2013 |
Elliott Hughes <enh@google.com> |
Clean up forking and cloning.
The kernel now maintains the pthread_internal_t::tid field for us,
and __clone was only used in one place so let's inline it so we don't
have to leave such a dangerous function lying around. Also rename
files to match their content and remove some useless #includes.
Change-Id: I24299fb4a940e394de75f864ee36fdabbd9438f9
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| 66759d6041b33706c3a92dde48492ba4f2bbab2f |
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31-Oct-2013 |
Elliott Hughes <enh@google.com> |
Move the pthread debugging flags to the right place.
Change-Id: Ie805bd837d1f72cdf1818e056c0baeb0857e4e84
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| c3f114037dbf028896310609fd28cf2b3da99c4d |
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30-Oct-2013 |
Elliott Hughes <enh@google.com> |
<pthread.h> fixes and pthread cleanup.
<pthread.h> was missing nonnull attributes, noreturn on pthread_exit,
and had incorrect cv qualifiers for several standard functions.
I've also marked the non-standard stuff (where I count glibc rather
than POSIX as "standard") so we can revisit this cruft for LP64 and
try to ensure we're compatible with glibc.
I've also broken out the pthread_cond* functions into a new file.
I've made the remaining pthread files (plus ptrace) part of the bionic code
and fixed all the warnings.
I've added a few more smoke tests for chunks of untested pthread functionality.
We no longer need the libc_static_common_src_files hack for any of the
pthread implementation because we long since stripped out the rest of
the armv5 support, and this hack was just to ensure that __get_tls in libc.a
went via the kernel if necessary.
This patch also finishes the job of breaking up the pthread.c monolith, and
adds a handful of new tests.
Change-Id: Idc0ae7f5d8aa65989598acd4c01a874fe21582c7
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