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Clean-up AVR stack colorization logic

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This commit is contained in:
Gregory Nutt 2014-03-23 10:09:53 -06:00
parent 82c9694c5b
commit c41976f23c
6 changed files with 20 additions and 3 deletions
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1
arch/avr/Kconfig
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@ -32,6 +32,7 @@ endchoice
config ARCH_FAMILY_AVR config ARCH_FAMILY_AVR
bool bool
default n default n
select ARCH_HAVE_STACKCHECK
config ARCH_FAMILY_AVR32 config ARCH_FAMILY_AVR32
bool bool

2
arch/avr/src/avr/up_createstack.c
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@ -170,7 +170,7 @@ int up_create_stack(FAR struct tcb_s *tcb, size_t stack_size, uint8_t ttype)
*/ */
#if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_STACK) #if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_STACK)
memset(tcb->stack_alloc_ptr, 0xaa, stack_size); memset(tcb->stack_alloc_ptr, STACK_COLOR, stack_size);
#endif #endif
/* The AVR uses a push-down stack: the stack grows toward lower /* The AVR uses a push-down stack: the stack grows toward lower

2
arch/avr/src/avr/up_usestack.c
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@ -112,7 +112,7 @@ int up_use_stack(struct tcb_s *tcb, void *stack, size_t stack_size)
*/ */
#if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_STACK) #if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_STACK)
memset(tcb->stack_alloc_ptr, 0xaa, stack_size); memset(tcb->stack_alloc_ptr, STACK_COLOR, stack_size);
#endif #endif
/* The AVR uses a push-down stack: the stack grows toward loweraddresses in /* The AVR uses a push-down stack: the stack grows toward loweraddresses in

2
arch/avr/src/avr32/up_createstack.c
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@ -170,7 +170,7 @@ int up_create_stack(FAR struct tcb_s *tcb, size_t stack_size, uint8_t ttype)
*/ */
#if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_STACK) #if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_STACK)
memset(tcb->stack_alloc_ptr, 0xaa, stack_size); memset(tcb->stack_alloc_ptr, STACK_COLOR, stack_size);
#endif #endif
/* The AVR32 uses a push-down stack: the stack grows toward lower /* The AVR32 uses a push-down stack: the stack grows toward lower

8
arch/avr/src/avr32/up_usestack.c
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@ -107,6 +107,14 @@ int up_use_stack(struct tcb_s *tcb, void *stack, size_t stack_size)
tcb->stack_alloc_ptr = stack; tcb->stack_alloc_ptr = stack;
/* If stack debug is enabled, then fill the stack with a recognizable value
* that we can use later to test for high water marks.
*/
#if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_STACK)
memset(tcb->stack_alloc_ptr, STACK_COLOR, stack_size);
#endif
/* The AVR32 uses a push-down stack: the stack grows /* The AVR32 uses a push-down stack: the stack grows
* toward loweraddresses in memory. The stack pointer * toward loweraddresses in memory. The stack pointer
* register, points to the lowest, valid work address * register, points to the lowest, valid work address

8
arch/avr/src/common/up_internal.h
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@ -73,6 +73,14 @@
# define CONFIG_ARCH_INTERRUPTSTACK 0 # define CONFIG_ARCH_INTERRUPTSTACK 0
#endif #endif
/* This is the value used to mark the stack for subsequent stack monitoring
* logic.
*/
#define STACK_COLOR 's'
#define INTSTACK_COLOR 's'
#define HEAP_COLOR 'h'
/**************************************************************************** /****************************************************************************
* Public Types * Public Types
****************************************************************************/ ****************************************************************************/