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Print crash record optionally

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cpq
2026-10-01 14:42:16 +03:00
committed by robert
parent 1b0906510b
commit 3aa5f2a1fd
9 changed files with 119 additions and 76 deletions
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tutorials/stm32/nucleo-h723zg/minimal/main.c
+3 -2
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@@ -46,15 +46,16 @@ __attribute__((used, noinline)) static void fault_c(uint32_t *frame,
uint32_t exc_return) {
extern uint32_t _estack;
uint32_t *stack = frame + 8 + ((exc_return & (1U << 4)) ? 0 : 18);
uint32_t *r = mg_health_record.backtrace;
uint32_t *r = mg_health_record.data;
if (frame[7] & (1U << 9)) stack++; // Eight-byte stack alignment padding
r[CRASH_SP] = (uint32_t) (uintptr_t) stack;
r[CRASH_LR] = frame[5];
r[CRASH_PC] = frame[6];
for (size_t i = 0; i < MG_HEALTH_BACKTRACE - CRASH_STACK; i++) {
for (size_t i = 0; i < MG_HEALTH_DATA_SIZE - CRASH_STACK; i++) {
r[CRASH_STACK + i] = stack + i < &_estack ? stack[i] : 0;
}
mg_health_record.cpuid = SCB->CPUID;
mg_health_record.reset_reason = MG_HEALTH_RESET_FAULT;
NVIC_SystemReset();
}
tutorials/stm32/nucleo-h723zg/minimal/mongoose_config.h
+1 -1
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@@ -28,7 +28,7 @@
// Crash report support. Health record lives in the .mg_health region, see link.ld
#define MG_HEALTH_RAM __attribute__((section(".mg_health")))
#define MG_HEALTH_BACKTRACE 1022 // fill the 4KB backup SRAM
#define MG_HEALTH_DATA_SIZE 1000 // fill the 4KB backup SRAM
// mdash.net device management service support
#define MG_ENABLE_MDASH 1