this is definitely a backtrace function

[simgrid.git] / src / xbt / backtrace.cpp

diff --git a/src/xbt/backtrace.cpp b/src/xbt/backtrace.cpp
index 8831610..fa82b4d 100644 (file)
--- a/src/xbt/backtrace.cpp
+++ b/src/xbt/backtrace.cpp
@@ -13,6 +13,7 @@
 #include <cxxabi.h>
 #endif
 
+#include "simgrid/simix.h" /* SIMIX_process_self_get_name() */
 #include <xbt/backtrace.h>
 #include <xbt/backtrace.hpp>
 #include <xbt/log.h>
@@ -26,6 +27,22 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_backtrace, xbt, "Backtrace");
 
 }
 
+void xbt_backtrace_display(xbt_backtrace_location_t* loc, std::size_t count)
+{
+#ifdef HAVE_BACKTRACE
+  std::vector<std::string> backtrace = simgrid::xbt::resolveBacktrace(loc, count);
+  if (backtrace.empty()) {
+    fprintf(stderr, "(backtrace not set)\n");
+    return;
+  }
+  fprintf(stderr, "Backtrace (displayed in process %s):\n", SIMIX_process_self_get_name());
+  for (std::string const& s : backtrace)
+    fprintf(stderr, "---> %s\n", s.c_str());
+#else
+  XBT_ERROR("Cannot display backtrace when compiled without libunwind.");
+#endif
+}
+
 /** @brief show the backtrace of the current point (lovely while debugging) */
 void xbt_backtrace_display_current()
 {