diff options
Diffstat (limited to 'cpukit/score/cpu/a29k')
| -rw-r--r-- | cpukit/score/cpu/a29k/ChangeLog | 7 | ||||
| -rw-r--r-- | cpukit/score/cpu/a29k/cpu.c | 17 |
2 files changed, 20 insertions, 4 deletions
diff --git a/cpukit/score/cpu/a29k/ChangeLog b/cpukit/score/cpu/a29k/ChangeLog index 508c40b0a6..8663872d8d 100644 --- a/cpukit/score/cpu/a29k/ChangeLog +++ b/cpukit/score/cpu/a29k/ChangeLog @@ -1,3 +1,10 @@ +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. + 2002-12-11 Ralf Corsepius <corsepiu@faw.uni-ulm.de> * configure.ac: Require autoconf-2.57 + automake-1.7.2. 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(); + } } |