From 3595533de5a347ddeb5f2bb2b14a853296d23119 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Wed, 11 Apr 2012 10:50:00 +0200 Subject: score: Remove _Stack_Adjust_size() The increase of the stack size by CPU_STACK_ALIGNMENT in _Thread_Stack_Allocate() is disadvantageous. This may lead to a huge over allocation for specialized stack allocators. The CPU_STACK_ALIGNMENT is at most 16 on all current RTEMS CPU ports. The mimimum stack size ensured by _Stack_Ensure_minimum() must be considerable larger than this value, otherwise stack overflows will likely occur. Thus the _Stack_Adjust_size() is also superfluous. --- cpukit/score/inline/rtems/score/stack.inl | 18 ------------------ 1 file changed, 18 deletions(-) (limited to 'cpukit/score/inline/rtems/score/stack.inl') diff --git a/cpukit/score/inline/rtems/score/stack.inl b/cpukit/score/inline/rtems/score/stack.inl index c5d809cb81..2f49d012b3 100644 --- a/cpukit/score/inline/rtems/score/stack.inl +++ b/cpukit/score/inline/rtems/score/stack.inl @@ -24,7 +24,6 @@ #define _RTEMS_SCORE_STACK_INL #include /* RTEMS_INLINE_ROUTINE */ -#include /* CPU_STACK_ALIGNMENT */ /** * @addtogroup ScoreStack @@ -90,23 +89,6 @@ RTEMS_INLINE_ROUTINE size_t _Stack_Ensure_minimum ( return _Stack_Minimum(); } -/** - * This function increases the stack size to ensure that the thread - * has the desired amount of stack space after the initial stack - * pointer is determined based on alignment restrictions. - * - * @note - * - * The amount of adjustment for alignment is CPU dependent. - */ - -RTEMS_INLINE_ROUTINE uint32_t _Stack_Adjust_size ( - size_t size -) -{ - return size + CPU_STACK_ALIGNMENT; -} - /**@}*/ #endif -- cgit v1.2.3