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fault_handler add more info in case of crash.

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This commit is contained in:
TitanMKD
2013-03-10 14:23:26 +01:00
parent 6620fe6ba9
commit 7836911c45
1 changed files with 19 additions and 2 deletions
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21
firmware/common/fault_handler.c
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@ -1,5 +1,6 @@
/*
* Copyright 2012 Jared Boone <jared@sharebrained.com>
* Copyright 2013 Benjamin Vernoux <titanmkd@gmail.com>
*
* This file is part of HackRF.
*
@ -23,6 +24,18 @@
#include "fault_handler.h"
typedef struct
{
uint32_t r0;
uint32_t r1;
uint32_t r2;
uint32_t r3;
uint32_t r12;
uint32_t lr; /* Link Register. */
uint32_t pc; /* Program Counter. */
uint32_t psr;/* Program Status Register. */
} hard_fault_stack_t;
__attribute__((naked))
void hard_fault_handler(void) {
__asm__("TST LR, #4");
@ -32,9 +45,13 @@ void hard_fault_handler(void) {
__asm__("B hard_fault_handler_c");
}
volatile hard_fault_stack_t* hard_fault_stack_pt;
void hard_fault_handler_c(uint32_t* args)
{
/* hard_fault_stack_pt contains registers saved before the hard fault */
hard_fault_stack_pt = (hard_fault_stack_t*)args;
void hard_fault_handler_c(uint32_t* args) {
(void)args;
// args[0-7]: r0, r1, r2, r3, r12, lr, pc, psr
// Other interesting registers to examine:
// CFSR: Configurable Fault Status Register