Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/Support/Signals.h b/linux-x64/clang/include/llvm/Support/Signals.h
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+++ b/linux-x64/clang/include/llvm/Support/Signals.h
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+//===- llvm/Support/Signals.h - Signal Handling support ----------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines some helpful functions for dealing with the possibility of
+// unix signals occurring while your program is running.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_SUPPORT_SIGNALS_H
+#define LLVM_SUPPORT_SIGNALS_H
+
+#include <string>
+
+namespace llvm {
+class StringRef;
+class raw_ostream;
+
+namespace sys {
+
+ /// This function runs all the registered interrupt handlers, including the
+ /// removal of files registered by RemoveFileOnSignal.
+ void RunInterruptHandlers();
+
+ /// This function registers signal handlers to ensure that if a signal gets
+ /// delivered that the named file is removed.
+ /// @brief Remove a file if a fatal signal occurs.
+ bool RemoveFileOnSignal(StringRef Filename, std::string* ErrMsg = nullptr);
+
+ /// This function removes a file from the list of files to be removed on
+ /// signal delivery.
+ void DontRemoveFileOnSignal(StringRef Filename);
+
+ /// When an error signal (such as SIGABRT or SIGSEGV) is delivered to the
+ /// process, print a stack trace and then exit.
+ /// \brief Print a stack trace if a fatal signal occurs.
+ /// \param Argv0 the current binary name, used to find the symbolizer
+ /// relative to the current binary before searching $PATH; can be
+ /// StringRef(), in which case we will only search $PATH.
+ /// \param DisableCrashReporting if \c true, disable the normal crash
+ /// reporting mechanisms on the underlying operating system.
+ void PrintStackTraceOnErrorSignal(StringRef Argv0,
+ bool DisableCrashReporting = false);
+
+ /// Disable all system dialog boxes that appear when the process crashes.
+ void DisableSystemDialogsOnCrash();
+
+ /// \brief Print the stack trace using the given \c raw_ostream object.
+ void PrintStackTrace(raw_ostream &OS);
+
+ // Run all registered signal handlers.
+ void RunSignalHandlers();
+
+ /// AddSignalHandler - Add a function to be called when an abort/kill signal
+ /// is delivered to the process. The handler can have a cookie passed to it
+ /// to identify what instance of the handler it is.
+ void AddSignalHandler(void (*FnPtr)(void *), void *Cookie);
+
+ /// This function registers a function to be called when the user "interrupts"
+ /// the program (typically by pressing ctrl-c). When the user interrupts the
+ /// program, the specified interrupt function is called instead of the program
+ /// being killed, and the interrupt function automatically disabled. Note
+ /// that interrupt functions are not allowed to call any non-reentrant
+ /// functions. An null interrupt function pointer disables the current
+ /// installed function. Note also that the handler may be executed on a
+ /// different thread on some platforms.
+ /// @brief Register a function to be called when ctrl-c is pressed.
+ void SetInterruptFunction(void (*IF)());
+} // End sys namespace
+} // End llvm namespace
+
+#endif