Index: lib/profile/InstrProfiling.h
===================================================================
--- lib/profile/InstrProfiling.h
+++ lib/profile/InstrProfiling.h
@@ -192,6 +192,14 @@
                                       const __llvm_profile_data *End);
 
 /*!
+ * \brief Set the flag that profile data has been dumped to the file.
+ * This is useful for users to disable dumping profile data to the file for
+ * certain processes in case the processes don't have permission to write to
+ * the disks, and trying to do so would result in side effects such as crashes.
+ */
+void __llvm_profile_set_dumped();
+
+/*!
  * This variable is defined in InstrProfilingRuntime.cc as a hidden
  * symbol. Its main purpose is to enable profile runtime user to
  * bypass runtime initialization code -- if the client code explicitly
Index: lib/profile/InstrProfiling.c
===================================================================
--- lib/profile/InstrProfiling.c
+++ lib/profile/InstrProfiling.c
@@ -35,6 +35,10 @@
   ProfileDumped = 1;
 }
 
+COMPILER_RT_VISIBILITY void __llvm_profile_set_dumped() {
+  lprofSetProfileDumped();
+}
+
 /* Return the number of bytes needed to add to SizeInBytes to make it
  *   the result a multiple of 8.
  */