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2003-02-11 Joel Sherrill <joel@OARcorp.com>

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* score/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.
This commit is contained in:
Joel Sherrill
2003-02-11 23:42:14 +00:00
parent 9518a5bc4d
commit 92e57ea26c
2 changed files with 20 additions and 9 deletions
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7
c/src/lib/libcpu/sh/sh7750/ChangeLog
View File

@@ -1,3 +1,10 @@
2003-02-11 Joel Sherrill <joel@OARcorp.com>
* score/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.
2003-02-11 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
* configure.ac: AM_INIT_AUTOMAKE([1.7.2]).

22
c/src/lib/libcpu/sh/sh7750/score/cpu_asm.c
View File

@@ -287,6 +287,8 @@ void __ISR_Handler( unsigned32 vector)
_CPU_ISR_Disable( level );
_Thread_Dispatch_disable_level--;
_ISR_Nest_level--;
#if( CPU_HAS_SOFTWARE_INTERRUPT_STACK == TRUE)
@@ -296,16 +298,18 @@ void __ISR_Handler( unsigned32 vector)
stack_ptr = _old_stack_ptr;
#endif
_Thread_Dispatch_disable_level--;
_CPU_ISR_Enable( level );
if ( _Thread_Dispatch_disable_level == 0 )
{
if(( _Context_Switch_necessary) || (! _ISR_Signals_to_thread_executing))
{
_ISR_Signals_to_thread_executing = FALSE;
_Thread_Dispatch();
}
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();
}
}