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| author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2006-03-07 20:47:53 +0000 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2006-03-07 20:47:53 +0000 |
| commit | f0ad529d28688214568532c0d30eb13654db1462 (patch) | |
| tree | 0b254b2a26f754f598edf2b441c2ebd7576666ea /cpukit/score/inline | |
| parent | New. (diff) | |
| download | rtems-f0ad529d28688214568532c0d30eb13654db1462.tar.bz2 | |
2006-03-07 Joel Sherrill <joel@OARcorp.com>
PR 866/rtems
* score/include/rtems/system.h, score/include/rtems/score/isr.h,
score/inline/rtems/score/thread.inl,
score/macros/rtems/score/thread.inl: Added memory barriers to enter
and exit of dispatching and interrupt critical sections so GCC will
not optimize and reorder code out of a critical section.
Diffstat (limited to 'cpukit/score/inline')
| -rw-r--r-- | cpukit/score/inline/rtems/score/thread.inl | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/cpukit/score/inline/rtems/score/thread.inl b/cpukit/score/inline/rtems/score/thread.inl index 1599883d70..125f7cf5f7 100644 --- a/cpukit/score/inline/rtems/score/thread.inl +++ b/cpukit/score/inline/rtems/score/thread.inl @@ -142,6 +142,7 @@ RTEMS_INLINE_ROUTINE void _Thread_Deallocate_fp( void ) RTEMS_INLINE_ROUTINE void _Thread_Disable_dispatch( void ) { _Thread_Dispatch_disable_level += 1; + RTEMS_COMPILER_MEMORY_BARRIER(); } /** @@ -154,6 +155,7 @@ RTEMS_INLINE_ROUTINE void _Thread_Disable_dispatch( void ) #if ( CPU_INLINE_ENABLE_DISPATCH == TRUE ) RTEMS_INLINE_ROUTINE void _Thread_Enable_dispatch() { + RTEMS_COMPILER_MEMORY_BARRIER(); if ( (--_Thread_Dispatch_disable_level) == 0 ) _Thread_Dispatch(); } @@ -171,6 +173,7 @@ void _Thread_Enable_dispatch( void ); RTEMS_INLINE_ROUTINE void _Thread_Unnest_dispatch( void ) { + RTEMS_COMPILER_MEMORY_BARRIER(); _Thread_Dispatch_disable_level -= 1; } |