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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2022-09-30 08:06:18 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2022-10-14 10:48:23 +0200 |
| commit | 45ee958552ca35b6834985718ecd59b27fc52f86 (patch) | |
| tree | 5d66e79cf20491f0f1b8f32b292a5a398d386ce4 /cpukit/score/src/threadcreateidle.c | |
| parent | stackchk01: Check CPU_STACK_MINIMUM_SIZE (diff) | |
| download | rtems-45ee958552ca35b6834985718ecd59b27fc52f86.tar.bz2 | |
config: Add CONFIGURE_IDLE_TASK_STORAGE_SIZE
By default, allocate the IDLE task storage areas from the RTEMS Workspace.
This avoids having to estimate the thread-local storage size in the default
configuration.
Add the application configuration option CONFIGURE_IDLE_TASK_STORAGE_SIZE to
request a static allocation of the task storage area for IDLE tasks.
Update #3835.
Update #4524.
Diffstat (limited to '')
| -rw-r--r-- | cpukit/score/src/threadcreateidle.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/cpukit/score/src/threadcreateidle.c b/cpukit/score/src/threadcreateidle.c index d2037b36f0..04565f910b 100644 --- a/cpukit/score/src/threadcreateidle.c +++ b/cpukit/score/src/threadcreateidle.c @@ -53,7 +53,10 @@ #include <string.h> -static void _Thread_Create_idle_for_CPU( Per_CPU_Control *cpu ) +static void _Thread_Create_idle_for_CPU( + Per_CPU_Control *cpu, + uintptr_t storage_size +) { Thread_Configuration config; Thread_Control *idle; @@ -70,8 +73,7 @@ static void _Thread_Create_idle_for_CPU( Per_CPU_Control *cpu ) config.is_fp = CPU_IDLE_TASK_IS_FP; config.is_preemptible = true; config.stack_free = _Objects_Free_nothing; - config.stack_size = _Thread_Idle_stack_size - + CPU_IDLE_TASK_IS_FP * CONTEXT_FP_SIZE; + config.stack_size = storage_size; /* * The IDLE thread stacks may be statically allocated or there may be a @@ -118,21 +120,28 @@ static void _Thread_Create_idle_for_CPU( Per_CPU_Control *cpu ) void _Thread_Create_idle( void ) { + uintptr_t storage_size; #if defined(RTEMS_SMP) - uint32_t cpu_max; - uint32_t cpu_index; + uint32_t cpu_max; + uint32_t cpu_index; +#endif + + storage_size = _TLS_Get_allocation_size() + + CPU_IDLE_TASK_IS_FP * CONTEXT_FP_SIZE + + _Thread_Idle_stack_size; +#if defined(RTEMS_SMP) cpu_max = _SMP_Get_processor_maximum(); for ( cpu_index = 0 ; cpu_index < cpu_max ; ++cpu_index ) { Per_CPU_Control *cpu = _Per_CPU_Get_by_index( cpu_index ); if ( _Per_CPU_Is_processor_online( cpu ) ) { - _Thread_Create_idle_for_CPU( cpu ); + _Thread_Create_idle_for_CPU( cpu, storage_size ); } } #else - _Thread_Create_idle_for_CPU( _Per_CPU_Get() ); + _Thread_Create_idle_for_CPU( _Per_CPU_Get(), storage_size ); #endif _CPU_Use_thread_local_storage( |