static void busfault(struct arm_cm_exception_frame *frame)
{
printf("busfault: ");
dump_frame(frame);
platform_halt(HALT_ACTION_HALT, HALT_REASON_SW_PANIC);
}
static void memmanage(struct arm_cm_exception_frame *frame)
{
printf("memmanage: ");
dump_frame(frame);
uint32_t mmfsr = SCB->CFSR & 0xff;
if (mmfsr & (1<<0)) { // IACCVIOL
printf("instruction fault\n");
}
if (mmfsr & (1<<1)) { // DACCVIOL
printf("data fault\n");
}
if (mmfsr & (1<<3)) { // MUNSTKERR
printf("fault on exception return\n");
}
if (mmfsr & (1<<4)) { // MSTKERR
printf("fault on exception entry\n");
}
if (mmfsr & (1<<5)) { // MLSPERR
printf("fault on lazy fpu preserve\n");
}
if (mmfsr & (1<<7)) { // MMARVALID
printf("fault address 0x%x\n", SCB->MMFAR);
}
platform_halt(HALT_ACTION_HALT, HALT_REASON_SW_PANIC);
}
static void usagefault(struct arm_cm_exception_frame *frame)
{
inc_critical_section();
printf("usagefault: ");
dump_frame(frame);
platform_halt(HALT_ACTION_HALT, HALT_REASON_SW_PANIC);
}
static void exception_die(struct arm_fault_frame *frame, const char *msg)
{
dprintf(CRITICAL, msg);
dump_fault_frame(frame);
platform_halt(HALT_ACTION_HALT, HALT_REASON_SW_PANIC);
for (;;);
}
static void hardfault(struct arm_cm_exception_frame *frame)
{
printf("hardfault: ");
dump_frame(frame);
printf("HFSR 0x%x\n", SCB->HFSR);
platform_halt(HALT_ACTION_HALT, HALT_REASON_SW_PANIC);
}
static void exception_die(struct arm_fault_frame *frame, int pc_off, const char *msg)
{
inc_critical_section();
frame->pc += pc_off;
dprintf(CRITICAL, msg);
dump_fault_frame(frame);
#ifdef LGE_WITH_CRASH_HANDLER
platform_halt();
#else
halt();
#endif
for(;;);
}
static int cmd_reboot(int argc, const cmd_args *argv)
{
platform_halt(HALT_ACTION_REBOOT, HALT_REASON_SW_RESET);
return 0;
}
void __WEAK _debugmonitor(void)
{
printf("debugmonitor\n");
platform_halt(HALT_ACTION_HALT, HALT_REASON_SW_PANIC);
}
/* systick handler */
void __WEAK _systick(void)
{
printf("systick\n");
platform_halt(HALT_ACTION_HALT, HALT_REASON_SW_PANIC);
}
void _nmi(void)
{
printf("nmi\n");
platform_halt(HALT_ACTION_HALT, HALT_REASON_SW_PANIC);
}
void _memmanage(void)
{
printf("memmanage\n");
platform_halt(HALT_ACTION_HALT, HALT_REASON_SW_PANIC);
}
void _nmi(void)
{
inc_critical_section();
printf("nmi\n");
platform_halt(HALT_ACTION_HALT, HALT_REASON_SW_PANIC);
}
/* systick handler */
void __WEAK _systick(void)
{
inc_critical_section();
printf("systick\n");
platform_halt(HALT_ACTION_HALT, HALT_REASON_SW_PANIC);
}
void halt(void)
{
enter_critical_section(); // disable ints
platform_halt();
}
static int do_reboot(void *arg) {
thread_sleep(250);
platform_halt(HALT_ACTION_REBOOT, HALT_REASON_SW_RESET);
return 0;
}
void platform_restart(void)
{
platform_halt();
}
void platform_power_off(void)
{
platform_halt();
}
void _memmanage(void)
{
inc_critical_section();
printf("memmanage\n");
platform_halt(HALT_ACTION_HALT, HALT_REASON_SW_PANIC);
}
void machine_halt(void)
{
platform_halt();
while (1);
}
static int cmd_poweroff(int argc, const cmd_args *argv)
{
platform_halt(HALT_ACTION_SHUTDOWN, HALT_REASON_SW_RESET);
return 0;
}