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-rw-r--r--include/linux/stacktrace.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h
new file mode 100644
index 000000000000..9cc81e572224
--- /dev/null
+++ b/include/linux/stacktrace.h
@@ -0,0 +1,20 @@
+#ifndef __LINUX_STACKTRACE_H
+#define __LINUX_STACKTRACE_H
+
+#ifdef CONFIG_STACKTRACE
+struct stack_trace {
+ unsigned int nr_entries, max_entries;
+ unsigned long *entries;
+};
+
+extern void save_stack_trace(struct stack_trace *trace,
+ struct task_struct *task, int all_contexts,
+ unsigned int skip);
+
+extern void print_stack_trace(struct stack_trace *trace, int spaces);
+#else
+# define save_stack_trace(trace, task, all, skip) do { } while (0)
+# define print_stack_trace(trace) do { } while (0)
+#endif
+
+#endif