implement dump_stack in libddekit with backtrace.

2 files changed, 14 insertions, 0 deletions

diff --git a/libddekit/include/ddekit/printf.h b/libddekit/include/ddekit/printf.h
index 35b0dfa1..6dafa18d 100644
--- a/libddekit/include/ddekit/printf.h
+++ b/libddekit/include/ddekit/printf.h
@@ -18,6 +18,8 @@ int ddekit_printf(const char *fmt, ...);
  */
 int ddekit_vprintf(const char *fmt, va_list va);
 
+void dump_stack(void);
+
 /** Log function and message.
  * \ingroup DDEKit_util
  */
diff --git a/libddekit/printf.c b/libddekit/printf.c
index dacc65e6..c4a8b718 100644
--- a/libddekit/printf.c
+++ b/libddekit/printf.c
@@ -10,6 +10,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <mach.h>
+#include <execinfo.h>
 
 #include "ddekit/printf.h"
 
@@ -93,3 +94,14 @@ int log_init ()
 
 	return 0;
 }
+
+void dump_stack()
+{
+#define NUM_TRACES 16
+	void *trace[NUM_TRACES];
+	int trace_size = 0;
+
+	fprintf (stderr, "dump the stack\n");
+	trace_size = backtrace(trace, NUM_TRACES);
+	backtrace_symbols_fd(trace, trace_size, 2);
+}