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esp_expression_with_stack: added fake stack frame plus some cleanup on main macro

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This commit is contained in:
Felipe Neves
2019-11-27 13:52:27 -03:00
parent 5e18cd4e13
commit 674cb1c21c
4 changed files with 43 additions and 9 deletions
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19
components/esp_common/include/esp_expression_with_stack.h
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@@ -31,30 +31,33 @@
({ \
if(lock && stack && stack_size) { \
uint32_t backup; \
int watchpoint_place=(int)stack; \
portSTACK_TYPE *top_of_stack = &stack[0] + \
(sizeof(stack_size * sizeof(portSTACK_TYPE)) / \
sizeof(portSTACK_TYPE)); \
watchpoint_place=(watchpoint_place+31)&(~31); \
xSemaphoreTake(lock, portMAX_DELAY); \
esp_set_watchpoint(2, (char*)watchpoint_place, 32, ESP_WATCHPOINT_STORE);\
StackType_t *top_of_stack = esp_switch_stack_setup(stack, stack_size);\
esp_switch_stack_enter(top_of_stack, &backup); \
{ \
expression; \
} \
esp_clear_watchpoint(2); \
esp_switch_stack_exit(&backup); \
xSemaphoreGive(lock); \
} \
})
/**
* @brief Fill stack frame with CPU-specifics value before use
* @param stack Caller allocated stack pointer
* @param stack_size Size of stack in bytes
* @return New pointer to the top of stack
* @note Application must not call this function directly
*/
StackType_t * esp_switch_stack_setup(StackType_t *stack, size_t stack_size);
/**
* @brief Changes CPU sp-register to use another stack space and save the previous one
* @param stack Caller allocated stack pointer
* @param backup_stack Pointer to a place to save the current stack
* @note Application must not call this function directly
*/
extern void esp_switch_stack_enter(portSTACK_TYPE *stack, uint32_t *backup_stack);
extern void esp_switch_stack_enter(StackType_t *stack, uint32_t *backup_stack);
/**
* @brief Restores the previous CPU sp-register