diff options
| 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/macros/rtems/score | |
| 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/macros/rtems/score')
| -rw-r--r-- | cpukit/score/macros/rtems/score/thread.inl | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/cpukit/score/macros/rtems/score/thread.inl b/cpukit/score/macros/rtems/score/thread.inl index b5b94799c8..3ace7af4e2 100644 --- a/cpukit/score/macros/rtems/score/thread.inl +++ b/cpukit/score/macros/rtems/score/thread.inl @@ -126,7 +126,10 @@ */ #define _Thread_Disable_dispatch() \ - _Thread_Dispatch_disable_level += 1 + do { \ + _Thread_Dispatch_disable_level += 1; \ + RTEMS_COMPILER_MEMORY_BARRIER(); \ + } while (0) /*PAGE * @@ -136,9 +139,11 @@ #if ( CPU_INLINE_ENABLE_DISPATCH == TRUE ) #define _Thread_Enable_dispatch() \ - { if ( (--_Thread_Dispatch_disable_level) == 0 ) \ - _Thread_Dispatch(); \ - } + do { \ + RTEMS_COMPILER_MEMORY_BARRIER(); \ + if ( (--_Thread_Dispatch_disable_level) == 0 ) \ + _Thread_Dispatch(); \ + } while (0) #endif #if ( CPU_INLINE_ENABLE_DISPATCH == FALSE ) @@ -152,7 +157,10 @@ void _Thread_Enable_dispatch( void ); */ #define _Thread_Unnest_dispatch() \ - _Thread_Dispatch_disable_level -= 1 + do { \ + RTEMS_COMPILER_MEMORY_BARRIER(); \ + _Thread_Dispatch_disable_level -= 1; \ + } while (0) /*PAGE * |