Make Thread::InitStackHwm work on Mac OS.
Change-Id: Id0170dbdff8112d8e48d41ab50a311076863151e
diff --git a/src/utils.h b/src/utils.h
index 994e9bc..8e19ced 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -266,6 +266,9 @@
// Returns the calling thread's tid. (The C libraries don't expose this.)
pid_t GetTid();
+// Returns details of the calling thread's stack.
+void GetThreadStack(void*& stack_base, size_t& stack_size);
+
// Reads data from "/proc/self/task/${tid}/stat".
void GetTaskStats(pid_t tid, int& utime, int& stime, int& task_cpu);