From c03e2bc8c7b6c2133db6a661d785409d4756149a Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Wed, 11 Feb 2009 21:45:05 +0000 Subject: 2009-02-11 Joel Sherrill * cpu.c, rtems/score/cpu.h: Eliminate _CPU_Thread_dispatch_pointer and passing address of _Thread_Dispatch to _CPU_Initialize. Clean up comments. --- cpukit/score/cpu/lm32/ChangeLog | 6 ++++++ cpukit/score/cpu/lm32/cpu.c | 23 +++-------------------- cpukit/score/cpu/lm32/rtems/score/cpu.h | 24 +----------------------- 3 files changed, 10 insertions(+), 43 deletions(-) (limited to 'cpukit/score/cpu/lm32') diff --git a/cpukit/score/cpu/lm32/ChangeLog b/cpukit/score/cpu/lm32/ChangeLog index fd18d01237..ddaef1966a 100644 --- a/cpukit/score/cpu/lm32/ChangeLog +++ b/cpukit/score/cpu/lm32/ChangeLog @@ -1,3 +1,9 @@ +2009-02-11 Joel Sherrill + + * cpu.c, rtems/score/cpu.h: Eliminate _CPU_Thread_dispatch_pointer and + passing address of _Thread_Dispatch to _CPU_Initialize. Clean up + comments. + 2008-12-05 Joel Sherrill * .cvsignore: New file. diff --git a/cpukit/score/cpu/lm32/cpu.c b/cpukit/score/cpu/lm32/cpu.c index 540e6dbb2d..149647a037 100644 --- a/cpukit/score/cpu/lm32/cpu.c +++ b/cpukit/score/cpu/lm32/cpu.c @@ -23,32 +23,15 @@ * * This routine performs processor dependent initialization. * - * INPUT PARAMETERS: - * thread_dispatch - address of dispatching routine + * INPUT PARAMETERS: NONE * * LM32 Specific Information: * * XXX document implementation including references if appropriate */ -void _CPU_Initialize( - void (*thread_dispatch) /* ignored on this CPU */ -) -{ - /* - * The thread_dispatch argument is the address of the entry point - * for the routine called at the end of an ISR once it has been - * decided a context switch is necessary. On some compilation - * systems it is difficult to call a high-level language routine - * from assembly. This allows us to trick these systems. - * - * If you encounter this problem save the entry point in a CPU - * dependent variable. - */ - -#if 0 - _CPU_Thread_dispatch_pointer = thread_dispatch; -#endif +void _CPU_Initialize(void) +{ /* * If there is not an easy way to initialize the FP context * during Context_Initialize, then it is usually easier to diff --git a/cpukit/score/cpu/lm32/rtems/score/cpu.h b/cpukit/score/cpu/lm32/rtems/score/cpu.h index ac2129bd2d..d5522ff2d5 100644 --- a/cpukit/score/cpu/lm32/rtems/score/cpu.h +++ b/cpukit/score/cpu/lm32/rtems/score/cpu.h @@ -572,24 +572,6 @@ SCORE_EXTERN void *_CPU_Interrupt_stack_low; */ SCORE_EXTERN void *_CPU_Interrupt_stack_high; -/** - * @ingroup CPUInterrupt - * With some compilation systems, it is difficult if not impossible to - * call a high-level language routine from assembly language. This - * is especially true of commercial Ada compilers and name mangling - * C++ ones. This variable can be optionally defined by the CPU porter - * and contains the address of the routine @ref _Thread_Dispatch. This - * can make it easier to invoke that routine at the end of the interrupt - * sequence (if a dispatch is necessary). - * - * Port Specific Information: - * - * XXX document implementation including references if appropriate - */ -#if 0 -SCORE_EXTERN void (*_CPU_Thread_dispatch_pointer)(); -#endif - /* * Nothing prevents the porter from declaring more CPU specific variables. * @@ -1100,15 +1082,11 @@ uint32_t _CPU_ISR_Get_level( void ); /** * This routine performs CPU dependent initialization. * - * @param[in] thread_dispatch is the address of @ref _Thread_Dispatch - * * Port Specific Information: * * XXX document implementation including references if appropriate */ -void _CPU_Initialize( - void (*thread_dispatch) -); +void _CPU_Initialize(void); /** * @ingroup CPUInterrupt -- cgit v1.2.3