1 files changed, 32 insertions, 0 deletions

diff --git a/tools/lib/lockdep/uinclude/linux/stacktrace.h b/tools/lib/lockdep/uinclude/linux/stacktrace.h
new file mode 100644
index 000000000000..39aecc6b19d1
--- /dev/null
+++ b/tools/lib/lockdep/uinclude/linux/stacktrace.h
@@ -0,0 +1,32 @@
+#ifndef _LIBLOCKDEP_LINUX_STACKTRACE_H_
+#define _LIBLOCKDEP_LINUX_STACKTRACE_H_
+
+#include <execinfo.h>
+
+struct stack_trace {
+        unsigned int nr_entries, max_entries;
+        unsigned long *entries;
+        int skip;
+};
+
+static inline void print_stack_trace(struct stack_trace *trace, int spaces)
+{
+        backtrace_symbols_fd((void **)trace->entries, trace->nr_entries, 1);
+}
+
+#define save_stack_trace(trace) \
+        ((trace)->nr_entries =  \
+                backtrace((void **)(trace)->entries, (trace)->max_entries))
+
+static inline int dump_stack(void)
+{
+        void *array[64];
+        size_t size;
+
+        size = backtrace(array, 64);
+        backtrace_symbols_fd(array, size, 1);
+
+        return 0;
+}
+
+#endif