static void dump_backtrace_entry(unsigned long where)
{
/*
* Note that 'where' can have a physical address, but it's not handled.
*/
print_ip_sym(where);
}
static void dump_backtrace_entry(unsigned long where, unsigned long stack)
{
print_ip_sym(where);
if (in_exception_text(where))
dump_mem("", "Exception stack", stack,
stack + sizeof(struct pt_regs));
}
static void dump_backtrace_entry(unsigned long where, unsigned long stack)
{
print_ip_sym(where);
if (in_exception_text(where))
dump_mem("", "Exception stack", stack,
stack + sizeof(struct pt_regs) + 180); /* Additional 180 to workaround sp offset */
}
void print_stack_trace(struct stack_trace *trace, int spaces)
{
int i;
if (WARN_ON(!trace->entries))
return;
for (i = 0; i < trace->nr_entries; i++) {
printk("%*c", 1 + spaces, ' ');
print_ip_sym(trace->entries[i]);
}
}
static void __dump(struct task_struct *tsk, unsigned long *base_reg)
{
unsigned long ret_addr;
int cnt = LOOP_TIMES, graph = 0;
pr_emerg("Call Trace:\n");
if (!IS_ENABLED(CONFIG_FRAME_POINTER)) {
while (!kstack_end(base_reg)) {
ret_addr = *base_reg++;
if (__kernel_text_address(ret_addr)) {
get_real_ret_addr(&ret_addr, tsk, &graph);
print_ip_sym(ret_addr);
}
if (--cnt < 0)
break;
}
} else {
while (!kstack_end((void *)base_reg) &&
!((unsigned long)base_reg & 0x3) &&
((unsigned long)base_reg >= TASK_SIZE)) {
unsigned long next_fp;
#if !defined(NDS32_ABI_2)
ret_addr = base_reg[0];
next_fp = base_reg[1];
#else
ret_addr = base_reg[-1];
next_fp = base_reg[FP_OFFSET];
#endif
if (__kernel_text_address(ret_addr)) {
get_real_ret_addr(&ret_addr, tsk, &graph);
print_ip_sym(ret_addr);
}
if (--cnt < 0)
break;
base_reg = (unsigned long *)next_fp;
}
}
pr_emerg("\n");
}
void show_trace(unsigned long *stack)
{
unsigned long addr, module_start, module_end;
extern char _stext[], _etext[];
int i;
pr_err("\nCall Trace: ");
i = 1;
module_start = VMALLOC_START;
module_end = VMALLOC_END;
while (((long)stack & (THREAD_SIZE - 1)) != 0) {
if (__get_user(addr, stack)) {
/* This message matches "failing address" marked
s390 in ksymoops, so lines containing it will
not be filtered out by ksymoops. */
pr_err("Failing address 0x%lx\n", (unsigned long)stack);
break;
}
stack++;
/*
* If the address is either in the text segment of the
* kernel, or in the region which contains vmalloc'ed
* memory, it *may* be the address of a calling
* routine; if so, print it so that someone tracing
* down the cause of the crash will be able to figure
* out the call path that was taken.
*/
if (((addr >= (unsigned long)_stext) &&
(addr <= (unsigned long)_etext)) ||
((addr >= module_start) && (addr <= module_end))) {
#ifdef CONFIG_KALLSYMS
print_ip_sym(addr);
#else
if (i && ((i % 8) == 0))
pr_err("\n ");
pr_err("[<%08lx>] ", addr);
i++;
#endif
}
}
}
static void show_trace(struct task_struct *tsk, unsigned long *sp)
{
unsigned long addr;
printk(KERN_NOTICE "\n" KERN_NOTICE "Call Trace:\n");
while (!kstack_end(sp)) {
addr = *sp++;
/*
* If the address is either in the text segment of the
* kernel, or in the region which contains vmalloc'ed
* memory, it *may* be the address of a calling
* routine; if so, print it so that someone tracing
* down the cause of the crash will be able to figure
* out the call path that was taken.
*/
if (kernel_text_address(addr))
print_ip_sym(addr);
}
printk(KERN_NOTICE "\n");
}
static bool print_trace_address(unsigned long pc, void *arg)
{
print_ip_sym(pc);
return false;
}