1 files changed, 21 insertions, 0 deletions

diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h
new file mode 100644
index 000000000000..50e2b01e517c
--- /dev/null
+++ b/include/linux/stacktrace.h
@@ -0,0 +1,21 @@
+#ifndef __LINUX_STACKTRACE_H
+#define __LINUX_STACKTRACE_H
+
+#ifdef CONFIG_STACKTRACE
+struct stack_trace {
+        unsigned int nr_entries, max_entries;
+        unsigned long *entries;
+        int skip;       /* input argument: How many entries to skip */
+        int all_contexts; /* input argument: if true do than one stack */
+};
+
+extern void save_stack_trace(struct stack_trace *trace,
+                             struct task_struct *task);
+
+extern void print_stack_trace(struct stack_trace *trace, int spaces);
+#else
+# define save_stack_trace(trace, task)                  do { } while (0)
+# define print_stack_trace(trace)                       do { } while (0)
+#endif
+
+#endif