Commit Graph

5 Commits

Author SHA1 Message Date
Calin Juravle 1b676ea5fb Migrate pthread_rwlock implementation away from sys/atomics
Bug: 8133149
Bug: 14903517
Change-Id: Ib85987f53d7aeaec12a980ccb645c4a449c48503
2014-05-23 00:26:24 +01:00
Calin Juravle 92687e41bc Cleaned up pthread rwlocks implementation.
- used underscore_style_for_vars
- extracted time related functionality into a function
- cleaned up style
- removed unused fields from pthread_rwlock_t on LP64
- changed reservation in pthread_rwlock_t so that the size of the
structure equals glibc version

Bug: 8133149

Change-Id: I84ad3918678dc7f5e6b3db9b7e9b0899d3abe9cd
2014-05-23 00:22:58 +01:00
Calin Juravle 76f352eec1 Mutex-free implementation of pthread_rwlock
Bug: 8133149
Change-Id: Id6775010d95f2634b173daa55d87a59a3cf4131b
2014-05-22 11:11:15 +01:00
Elliott Hughes 39b644a0e2 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
2014-03-04 10:55:39 -08:00
Elliott Hughes c3f114037d <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
2013-10-31 12:31:16 -07:00