Crash_Override/OVMS3-idf
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Merge branch 'bugfix/watchpoint_on_shared_stacl' into 'master'

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shared_stack: fixed watchpoint placement on shared stack

See merge request espressif/esp-idf!7522
This commit is contained in:
Ivan Grokhotkov 2020-02-12 06:32:49 +08:00
parent 7f4309d0f1 9c8289b0d9
commit f9bc4fc08b
4 changed files with 21 additions and 19 deletions
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5
components/esp_common/include/esp_expression_with_stack.h
View file

@ -15,6 +15,7 @@
#include "freertos/FreeRTOS.h"
#include "freertos/semphr.h"
#include "freertos/task.h"
#include "esp_debug_helpers.h"
#include "esp_log.h"
@ -42,6 +43,10 @@ extern "C" {
expression; \
} \
esp_switch_stack_exit(&backup); \
StaticTask_t *current = (StaticTask_t *)xTaskGetCurrentTaskHandle(); \
/* pxDummy6 is the stack base of current thread defined in TCB_t */ \
/* place the watchpoint on current task stack after function execution*/ \
vPortSetStackWatchpoint(current->pxDummy6); \
xSemaphoreGive(lock); \
})

1
components/freertos/xtensa/include/freertos/portmacro.h
View file

@ -386,6 +386,7 @@ extern void esp_vApplicationTickHook( void );
void _xt_coproc_release(volatile void * coproc_sa_base);
void vApplicationSleep( TickType_t xExpectedIdleTime );
void vPortSetStackWatchpoint( void* pxStackStart );
#define portSUPPRESS_TICKS_AND_SLEEP( idleTime ) vApplicationSleep( idleTime )

5
components/xtensa/expression_with_stack_xtensa.c
View file

@ -19,7 +19,8 @@
StackType_t * esp_switch_stack_setup(StackType_t *stack, size_t stack_size)
{
#if CONFIG_FREERTOS_WATCHPOINT_END_OF_STACK
int watchpoint_place = (((int)stack + 31) & ~31);
esp_clear_watchpoint(1);
uint32_t watchpoint_place = ((uint32_t)stack + 32) & 0x1f ;
#endif
StackType_t *top_of_stack = (StackType_t *)&stack[0] +
((stack_size * sizeof(StackType_t)) / sizeof(StackType_t));
@ -35,7 +36,7 @@ StackType_t * esp_switch_stack_setup(StackType_t *stack, size_t stack_size)
frame->a1 = (UBaseType_t)top_of_stack;
#if CONFIG_FREERTOS_WATCHPOINT_END_OF_STACK
esp_set_watchpoint(2, (char*)watchpoint_place, 32, ESP_WATCHPOINT_STORE);
esp_set_watchpoint(1, (uint8_t *)watchpoint_place, 32, ESP_WATCHPOINT_STORE);
#endif
return top_of_stack;

29
components/xtensa/expression_with_stack_xtensa_asm.S
View file

@ -26,14 +26,14 @@
esp_switch_stack_enter:
#ifndef __XTENSA_CALL0_ABI__
entry sp, 0x10
mov a4, a1
s32i a4, a3, 0 /* on a3 there is a safe place to save the current stack */
l32i a4, a2, 0 /* obtains the user allocated stack buffer */
mov a1, a4 /* sp register now contains caller specified stack */
retw
entry sp, 0x10
mov a4, a1
s32i a4, a3, 0 /* on a3 there is a safe place to save the current stack */
l32i a4, a2, 0 /* obtains the user allocated stack buffer */
mov a1, a4 /* sp register now contains caller specified stack */
retw
#else
#error "this code is written for Window ABI"
#error "this code is written for Window ABI"
#endif
/**
@ -45,17 +45,12 @@ esp_switch_stack_enter:
esp_switch_stack_exit:
#ifndef __XTENSA_CALL0_ABI__
entry sp, 0x10
entry sp, 0x10
#if CONFIG_FREERTOS_WATCHPOINT_END_OF_STACK
movi a6, 2
movi a4, esp_clear_watchpoint
callx4 a4 /* clear the watchpoint before releasing stack */
#endif
l32i a4, a2, 0 /* recover the original task stack */
mov a1, a4 /* put it on sp register again */
retw
l32i a4, a2, 0 /* recover the original task stack */
mov a1, a4 /* put it on sp register again */
retw
#else
#error "this code is written for Window ABI"
#error "this code is written for Window ABI"
#endif