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Merge branch 'feature/add_panic_extra_stack' into 'master'

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Add function to panic NMI/ISR/task stack data and keep its stack safe

See merge request sdk/ESP8266_RTOS_SDK!568
This commit is contained in:
Dong Heng
2018-10-19 15:39:10 +08:00
parent bb8e5f37a2 a6a342ae51
commit 5b675d853f
2 changed files with 65 additions and 36 deletions
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60
components/freertos/port/esp8266/panic.c
View File

@ -98,11 +98,11 @@ static void panic_stack(StackType_t *start_stk, StackType_t *end_stk)
{
uint32_t *start = (uint32_t *)start_stk, *end = (uint32_t *)end_stk;
size_t i, j;
size_t size = end - start + 1;
size_t size = end - start;
panic_str(" ");
for (i = 0; i < STACK_VOL_NUM; i++) {
panic_data32(i * sizeof(StackType_t), 16);
panic_data32(i * sizeof(void *), 16);
panic_str(" ");
}
panic_str("\r\n\r\n");
@ -133,6 +133,8 @@ static void panic_stack(StackType_t *start_stk, StackType_t *end_stk)
*/
static void panic_info(void *frame, int wdt)
{
extern int _chip_nmi_cnt;
task_info_t *task;
int *regs = (int *)frame;
int x, y;
@ -151,29 +153,43 @@ static void panic_info(void *frame, int wdt)
show_critical_info();
}
if (xPortInIsrContext())
panic_str("Core 0 was running in ISR context:\r\n\r\n");
if (_chip_nmi_cnt) {
extern StackType_t _chip_nmi_stk, LoadStoreErrorHandlerStack;
if ((task = (task_info_t *)xTaskGetCurrentTaskHandle())) {
StackType_t *pdata = task->pxStack;
StackType_t *end = task->pxEndOfStack + 4;
_chip_nmi_cnt = 0;
panic_str("Core 0 was running in NMI context:\r\n\r\n");
// "Task stack [%s] stack from [%p] to [%p], total [%d] size\r\n\r\n"
panic_str("Task stack [");
panic_str(task->pcTaskName);
panic_str("] stack from [");
panic_data32((uint32_t)pdata, 16);
panic_str("] to [");
panic_data32((uint32_t)end, 16);
panic_str("], total [");
panic_data32((uint32_t)(end - pdata + 4), 10);
panic_str("] size\r\n\r\n");
panic_stack(pdata, end);
panic_str("\r\n\r\n");
panic_stack(&_chip_nmi_stk, &LoadStoreErrorHandlerStack);
} else {
panic_str("No task\r\n\r\n");
if (xPortInIsrContext()) {
extern StackType_t _chip_interrupt_stk, _chip_interrupt_tmp;
panic_str("Core 0 was running in ISR context:\r\n\r\n");
panic_stack(&_chip_interrupt_stk, &_chip_interrupt_tmp);
} else {
if ((task = (task_info_t *)xTaskGetCurrentTaskHandle())) {
StackType_t *pdata = task->pxStack;
StackType_t *end = task->pxEndOfStack + 4;
// "Task stack [%s] stack from [%p] to [%p], total [%d] size\r\n\r\n"
panic_str("Task stack [");
panic_str(task->pcTaskName);
panic_str("] stack from [");
panic_data32((uint32_t)pdata, 16);
panic_str("] to [");
panic_data32((uint32_t)end, 16);
panic_str("], total [");
panic_data32((uint32_t)(end - pdata), 10);
panic_str("] size\r\n\r\n");
panic_stack(pdata, end);
panic_str("\r\n\r\n");
} else {
panic_str("No task\r\n\r\n");
}
}
}
for (x = 0; x < 20; x += 4) {

41
components/freertos/port/esp8266/xtensa_vectors.S
View File

@ -128,10 +128,12 @@ STRUCT_END(HighPriFrame)
// Allocate save area and stack:
// (must use .bss, not .comm, because the subsequent .set does not work otherwise)
.global _chip_nmi_stk
.section .bss, "aw"
.align 16
LABEL(_Pri_,_Stack): .space PRI_N_STACK_SIZE + HESF_TOTALSIZE + PRI_N_STACK_SIZE2 + HESF_TOTALSIZE
_chip_nmi_stk: .space PRI_N_STACK_SIZE + HESF_TOTALSIZE + PRI_N_STACK_SIZE2 + HESF_TOTALSIZE
.global LoadStoreErrorHandlerStack
.balign 16
LoadStoreErrorHandlerStack:
.word 0 # a0
@ -155,8 +157,8 @@ LoadStoreErrorHandlerStack_reentry:
.data
.global LABEL(_Pri_,_HandlerAddress)
LABEL(_Pri_,_HandlerAddress): .space 4
.global LABEL(_Pri_, _NMICount)
LABEL(_Pri_,_NMICount): .space 4
.global _chip_nmi_cnt
_chip_nmi_cnt: .space 4
#endif
.section .data, "aw"
@ -189,7 +191,7 @@ LoadStoreErrorHandler:
rsr a0, excsave1 # restore a0 saved by UserExceptionVector
wsr a1, excsave1 # save a1 to excsave1, a1 can be used as varalbe
movi a1, LABEL(_Pri_,_NMICount)
movi a1, _chip_nmi_cnt
l32i a1, a1, 0
bnez a1, LoadStoreErrorHandler_reentry
@ -1080,14 +1082,14 @@ _xt_nmi:
ADD HIGH PRIORITY NON-MASKABLE INTERRUPT (NMI) HANDLER CODE HERE.
*/
movi a0, LABEL(_Pri_,_NMICount)
movi a0, _chip_nmi_cnt
l32i a0, a0, 0
bnez a0, nmi_reentry
movi a0, LABEL(_Pri_,_Stack) + PRI_N_STACK_SIZE // get ptr to save area
movi a0, _chip_nmi_stk + PRI_N_STACK_SIZE // get ptr to save area
j nmi_common
nmi_reentry:
movi a0, LABEL(_Pri_,_Stack) + PRI_N_STACK_SIZE + HESF_TOTALSIZE + PRI_N_STACK_SIZE2// get ptr to save area
movi a0, _chip_nmi_stk + PRI_N_STACK_SIZE + HESF_TOTALSIZE + PRI_N_STACK_SIZE2// get ptr to save area
nmi_common:
// interlock
@ -1186,7 +1188,7 @@ nmi_reentried:
#endif /* __XTENSA_WINDOWED_ABI__ */
//movi a1, LABEL(_Pri_,_Stack) + PRI_N_STACK_SIZE // get ptr to save area (is also initial stack ptr)
//movi a1, _chip_nmi_stk + PRI_N_STACK_SIZE // get ptr to save area (is also initial stack ptr)
mov a1, a0
movi a0, 0 // mark start of call frames in stack
@ -1247,7 +1249,7 @@ nmi_reentried:
#endif
//save NMI Count
movi a2, LABEL(_Pri_,_NMICount)
movi a2, _chip_nmi_cnt
l32i a3, a2, 0
addi a3, a3, 1
s32i a3, a2, 0
@ -1262,16 +1264,16 @@ nmi_reentried:
#endif
//Restore NMI level
movi a2, LABEL(_Pri_,_NMICount)
movi a2, _chip_nmi_cnt
l32i a3, a2, 0
addi a3, a3, -1
s32i a3, a2, 0
beqi a3, 1, nmi_reentry2
movi a1, LABEL(_Pri_,_Stack) + PRI_N_STACK_SIZE // get ptr to save area
movi a1, _chip_nmi_stk + PRI_N_STACK_SIZE // get ptr to save area
j nmi_common2
nmi_reentry2:
movi a1, LABEL(_Pri_,_Stack) + PRI_N_STACK_SIZE + HESF_TOTALSIZE + PRI_N_STACK_SIZE2// get ptr to save area
movi a1, _chip_nmi_stk + PRI_N_STACK_SIZE + HESF_TOTALSIZE + PRI_N_STACK_SIZE2// get ptr to save area
nmi_common2:
@ -1331,7 +1333,7 @@ nmi_common2:
// Note: register window has rotated, ie. a0..a15 clobbered.
// Reload initial stack pointer:
movi a1, LABEL(_Pri_,_Stack) + PRI_N_STACK_SIZE // - 16
movi a1, _chip_nmi_stk + PRI_N_STACK_SIZE // - 16
movi a6, XCHAL_NUM_AREGS - 8 // how many saved so far
addi a7, a1, -8*4
@ -1438,9 +1440,20 @@ _xt_ext_panic:
movi a0, PS_INTLEVEL(5) | PS_UM
wsr a0, PS
/* Allocate exception frame and save minimal context. */
mov a0, sp
movi sp, _chip_nmi_cnt
l32i sp, sp, 0
beqz sp, _panic_add_nmi_stk
/* Allocate exception frame and save minimal context. */
movi sp, _chip_interrupt_tmp
j _panic_dump_reg
_panic_add_nmi_stk:
movi sp, LoadStoreErrorHandlerStack
_panic_dump_reg:
addi sp, sp, -XT_STK_FRMSZ
s32i a0, sp, XT_STK_A1