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Diffstat (limited to 'cpukit/score/src/thread.c')
| -rw-r--r-- | cpukit/score/src/thread.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/cpukit/score/src/thread.c b/cpukit/score/src/thread.c index 2fae302cc2..afd36a0fd8 100644 --- a/cpukit/score/src/thread.c +++ b/cpukit/score/src/thread.c @@ -318,10 +318,23 @@ static unsigned32 _Thread_Stack_Allocate( * the RTEMS workspace allocate. This is so the stack free * routine can call the correct deallocation routine. */ + if ( _CPU_Table.stack_allocate_hook ) { stack_addr = (*_CPU_Table.stack_allocate_hook)( stack_size ); } else { + + /* + * First pad the requested size so we allocate enough memory + * so the context initialization can align it properly. The address + * returned the workspace allocate must be directly stored in the + * stack control block because it is later used in the free sequence. + * + * Thus it is the responsibility of the CPU dependent code to + * get and keep the stack adjust factor, the stack alignment, and + * the context initialization sequence in sync. + */ + stack_size = _Stack_Adjust_size( stack_size ); stack_addr = _Workspace_Allocate( stack_size ); } @@ -347,6 +360,7 @@ static void _Thread_Stack_Free(void *stack_addr) * the RTEMS workspace free. This is so the free * routine properly matches the allocation of the stack. */ + if ( _CPU_Table.stack_free_hook ) (*_CPU_Table.stack_free_hook)( stack_addr ); else |