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| author | Ian Lance Taylor <ian@gcc.gnu.org> | 2011-11-22 20:24:44 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2011-11-22 20:24:44 +0000 |
| commit | 48e7d50e9f4e4d866e12383bd76a0e488eb14c54 (patch) | |
| tree | f19dd9facaf8d0ad06290f19a199cc449393ffdd /libgo/runtime/go-semacquire.c | |
| parent | 2195c9beb6abfb06b7981643e2f3ea926ec0593b (diff) | |
| download | gcc-48e7d50e9f4e4d866e12383bd76a0e488eb14c54.zip gcc-48e7d50e9f4e4d866e12383bd76a0e488eb14c54.tar.gz gcc-48e7d50e9f4e4d866e12383bd76a0e488eb14c54.tar.bz2 | |
runtime: New lock/note implementation.
From-SVN: r181633
Diffstat (limited to 'libgo/runtime/go-semacquire.c')
| -rw-r--r-- | libgo/runtime/go-semacquire.c | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/libgo/runtime/go-semacquire.c b/libgo/runtime/go-semacquire.c index 05b6377..7c77c0b 100644 --- a/libgo/runtime/go-semacquire.c +++ b/libgo/runtime/go-semacquire.c @@ -117,35 +117,3 @@ runtime_semrelease (uint32 *addr) __go_assert (i == 0); } } - - -#ifndef HAVE_SYNC_FETCH_AND_ADD_4 - -/* For targets which don't have the required sync support. Really - this should be provided by gcc itself. FIXME. */ - -static pthread_mutex_t sync_lock = PTHREAD_MUTEX_INITIALIZER; - -uint32 -__sync_fetch_and_add_4(uint32*, uint32) - __attribute__((visibility("hidden"))); - -uint32 -__sync_fetch_and_add_4(uint32* ptr, uint32 add) -{ - int i; - uint32 ret; - - i = pthread_mutex_lock(&sync_lock); - __go_assert(i == 0); - - ret = *ptr; - *ptr += add; - - i = pthread_mutex_unlock(&sync_lock); - __go_assert(i == 0); - - return ret; -} - -#endif |