Added a convenience function to dump backtraces for gdb-less debugging

src/libstrongswan/utils/backtrace.c

@@ -248,3 +248,20 @@ backtrace_t *backtrace_create(int skip)
 	return &this->public;
 }
 
+/**
+ * See header
+ */
+void backtrace_dump(char *label, FILE *file, bool detailed)
+{
+	backtrace_t *backtrace;
+
+	backtrace = backtrace_create(2);
+
+	if (label)
+	{
+		fprintf(file, "Debug backtrace: %s\n", label);
+	}
+	backtrace->log(backtrace, file, detailed);
+	backtrace->destroy(backtrace);
+}
+

src/libstrongswan/utils/backtrace.h

@@ -77,4 +77,13 @@ struct backtrace_t {
  */
 backtrace_t *backtrace_create(int skip);
 
+/**
+ * Create a backtrace, dump it and clean it up.
+ *
+ * @param label		description to print for this backtrace, or NULL
+ * @param file		FILE to log backtrace to
+ * @param detailed	TRUE to resolve line/file using addr2line (slow)
+ */
+void backtrace_dump(char *label, FILE *file, bool detailed);
+
 #endif /** BACKTRACE_H_ @}*/