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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2003-02-11 23:43:36 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2003-02-11 23:43:36 +0000 |
commit | 3ab906275610bbfa9efa5df8a0c5167eae646e6d (patch) | |
tree | c5ba0e897e6dd4b77ae38583925d8defc09b20f9 /cpukit/score/cpu/a29k/cpu.c | |
parent | 2003-02-11 Joel Sherrill <joel@OARcorp.com> (diff) | |
download | rtems-3ab906275610bbfa9efa5df8a0c5167eae646e6d.tar.bz2 |
2003-02-11 Joel Sherrill <joel@OARcorp.com>
* cpu_asm.c: Rework logic that decides when to call
_Thread_Dispatch. Analysis by Sergei Organov <osv@javad.ru>
determined that _ISR_Signals_to_thread_executing was not being
honored and/or cleared properly.
Diffstat (limited to 'cpukit/score/cpu/a29k/cpu.c')
-rw-r--r-- | cpukit/score/cpu/a29k/cpu.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/cpukit/score/cpu/a29k/cpu.c b/cpukit/score/cpu/a29k/cpu.c index 158f680d4e..d522c07538 100644 --- a/cpukit/score/cpu/a29k/cpu.c +++ b/cpukit/score/cpu/a29k/cpu.c @@ -270,8 +270,17 @@ void a29k_ISR_Handler(unsigned32 vector) (*_ISR_Vector_table[ vector ])( vector ); --_Thread_Dispatch_disable_level; --_ISR_Nest_level; - if ( !_Thread_Dispatch_disable_level && !_ISR_Nest_level && - (_Context_Switch_necessary || _ISR_Signals_to_thread_executing )) - _Thread_Dispatch(); - return; + + if ( _ISR_Nest_level ) + return; + + if ( _Thread_Dispatch_disable_level ) { + _ISR_Signals_to_thread_executing = FALSE; + return; + } + + if ( _Context_Switch_necessary || _ISR_Signals_to_thread_executing ) { + _ISR_Signals_to_thread_executing = FALSE; + _Thread_Dispatch(); + } } |