New ProfilerGetStackTrace()

2 files changed, 13 insertions, 0 deletions

diff --git a/src/gperftools/profiler.h b/src/gperftools/profiler.h
index 1e7eb12..d444b4a 100644
--- a/src/gperftools/profiler.h
+++ b/src/gperftools/profiler.h
@@ -162,6 +162,10 @@ struct ProfilerState {
 };
 PERFTOOLS_DLL_DECL void ProfilerGetCurrentState(struct ProfilerState* state);
 
+/* Returns the current stack trace, to be called from a SIGPROF handler. */
+PERFTOOLS_DLL_DECL int ProfilerGetStackTrace(
+    void** result, int max_depth, int skip_count, const void *uc);
+
 #ifdef __cplusplus
 }  // extern "C"
 #endif
diff --git a/src/profiler.cc b/src/profiler.cc
index 3bd0ed9..077b6b8 100644
--- a/src/profiler.cc
+++ b/src/profiler.cc
@@ -402,6 +402,11 @@ extern "C" PERFTOOLS_DLL_DECL void ProfilerGetCurrentState(
   CpuProfiler::instance_.GetCurrentState(state);
 }
 
+extern "C" PERFTOOLS_DLL_DECL int ProfilerGetStackTrace(
+    void** result, int max_depth, int skip_count, const void *uc) {
+  return GetStackTraceWithContext(result, max_depth, skip_count, uc);
+}
+
 #else  // OS_CYGWIN
 
 // ITIMER_PROF doesn't work under cygwin.  ITIMER_REAL is available, but doesn't
@@ -420,6 +425,10 @@ extern "C" void ProfilerStop() { }
 extern "C" void ProfilerGetCurrentState(ProfilerState* state) {
   memset(state, 0, sizeof(*state));
 }
+extern "C" int ProfilerGetStackTrace(
+    void** result, int max_depth, int skip_count, const void *uc) {
+  return 0;
+}
 
 #endif  // OS_CYGWIN