4 * Stack trace management functions
6 * Copyright (C) 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
8 #include <linux/sched.h>
9 #include <linux/kernel.h>
10 #include <linux/export.h>
11 #include <linux/kallsyms.h>
12 #include <linux/stacktrace.h>
14 void print_stack_trace(struct stack_trace
*trace
, int spaces
)
18 if (WARN_ON(!trace
->entries
))
21 for (i
= 0; i
< trace
->nr_entries
; i
++) {
22 printk("%*c", 1 + spaces
, ' ');
23 print_ip_sym(trace
->entries
[i
]);
26 EXPORT_SYMBOL_GPL(print_stack_trace
);
29 * Architectures that do not implement save_stack_trace_tsk or
30 * save_stack_trace_regs get this weak alias and a once-per-bootup warning
31 * (whenever this facility is utilized - for example by procfs):
34 save_stack_trace_tsk(struct task_struct
*tsk
, struct stack_trace
*trace
)
36 WARN_ONCE(1, KERN_INFO
"save_stack_trace_tsk() not implemented yet.\n");
40 save_stack_trace_regs(struct pt_regs
*regs
, struct stack_trace
*trace
)
42 WARN_ONCE(1, KERN_INFO
"save_stack_trace_regs() not implemented yet.\n");
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