72 lines
2.7 KiB
C
72 lines
2.7 KiB
C
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/*
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* Note: Currently, the backtraces must still be checked manually. Therefore,
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* these test cases should always pass.
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* Todo: Automate the checking of backtrace addresses.
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*/
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#include <stdlib.h>
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#include "unity.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/xtensa_api.h"
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#include "esp_intr_alloc.h"
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#define SW_ISR_LEVEL_1 7
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#define SW_ISR_LEVEL_3 29
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#define RECUR_DEPTH 3
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#define ACTION_ABORT -1
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#define ACTION_INT_WDT -2
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// Set to (-1) for abort(), (-2) for interrupt watchdog
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static int backtrace_trigger_source;
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/*
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* Recursive functions to generate a longer call stack. When the max specified
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* recursion depth is reached, the following actions can be taken.
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*/
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static void __attribute__((__noinline__)) recursive_func(int recur_depth, int action)
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{
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if (recur_depth > 1) {
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recursive_func(recur_depth - 1, action);
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} else if (action >= 0) {
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xt_set_intset(1 << action);
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} else if (action == ACTION_ABORT) {
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abort();
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// Todo: abort() causes problems in GDB Stub backtrace due to being 'non returning'.
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} else if (action == ACTION_INT_WDT) {
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portDISABLE_INTERRUPTS();
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while (1) {
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;
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}
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}
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}
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static void level_three_isr (void *arg)
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{
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xt_set_intclear(1 << SW_ISR_LEVEL_3); //Clear interrupt
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recursive_func(RECUR_DEPTH, backtrace_trigger_source); //Abort at the max recursive depth
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}
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static void level_one_isr(void *arg)
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{
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xt_set_intclear(1 << SW_ISR_LEVEL_1); //Clear interrupt
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recursive_func(RECUR_DEPTH, SW_ISR_LEVEL_3); //Trigger nested interrupt max recursive depth
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}
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TEST_CASE("Test backtrace from abort", "[reset_reason][reset=abort,SW_CPU_RESET]")
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{
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//Allocate level one and three SW interrupts
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esp_intr_alloc(ETS_INTERNAL_SW0_INTR_SOURCE, 0, level_one_isr, NULL, NULL); //Level 1 SW intr
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esp_intr_alloc(ETS_INTERNAL_SW1_INTR_SOURCE, 0, level_three_isr, NULL, NULL); //Level 3 SW intr
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backtrace_trigger_source = ACTION_ABORT;
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recursive_func(RECUR_DEPTH, SW_ISR_LEVEL_1); //Trigger lvl 1 SW interrupt at max recursive depth
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}
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TEST_CASE("Test backtrace from interrupt watchdog timeout", "[reset_reason][reset=Interrupt wdt timeout on CPU0,SW_CPU_RESET]")
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{
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//Allocate level one and three SW interrupts
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esp_intr_alloc(ETS_INTERNAL_SW0_INTR_SOURCE, 0, level_one_isr, NULL, NULL); //Level 1 SW intr
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esp_intr_alloc(ETS_INTERNAL_SW1_INTR_SOURCE, 0, level_three_isr, NULL, NULL); //Level 3 SW intr
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backtrace_trigger_source = ACTION_INT_WDT;
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recursive_func(RECUR_DEPTH, SW_ISR_LEVEL_1); //Trigger lvl 1 SW interrupt at max recursive depth
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}
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