Add relocation types for Hexagon processor; patch by Sidney Manning <sidneym@codeauro...

[oota-llvm.git] / include / llvm / Support / Program.h

diff --git a/include/llvm/Support/Program.h b/include/llvm/Support/Program.h
index 986c53e908dbb11ddb7e0724277cf4defa4e83f7..a85f23550ec80baf9887bc2411b8cc6f1be59d3d 100644 (file)
--- a/include/llvm/Support/Program.h
+++ b/include/llvm/Support/Program.h
@@ -17,6 +17,7 @@
 #include "llvm/Support/Path.h"
 
 namespace llvm {
+class error_code;
 namespace sys {
 
   // TODO: Add operations to communicate with the process, redirect its I/O,
@@ -85,8 +86,9 @@ namespace sys {
     /// This function waits for the program to exit. This function will block
     /// the current program until the invoked program exits.
     /// @returns an integer result code indicating the status of the program.
-    /// A zero or positive value indicates the result code of the program. A
-    /// negative value is the signal number on which it terminated.
+    /// A zero or positive value indicates the result code of the program.
+    /// -1 indicates failure to execute
+    /// -2 indicates a crash during execution or timeout
     /// @see Execute
     /// @brief Waits for the program to exit.
     int Wait
@@ -96,11 +98,9 @@ namespace sys {
       ///< expires, the child is killed and this call returns. If zero,
       ///< this function will wait until the child finishes or forever if
       ///< it doesn't.
-      std::string* ErrMsg, ///< If non-zero, provides a pointer to a string
+      std::string* ErrMsg ///< If non-zero, provides a pointer to a string
       ///< instance in which error messages will be returned. If the string
       ///< is non-empty upon return an error occurred while waiting.
-      const char *SignalPrefix ///< If non-zero, provides a prefix to be
-      ///< prepended to ErrMsg if the process is terminated abnormally.
       );
 
     /// This function terminates the program.
@@ -123,12 +123,12 @@ namespace sys {
     /// @brief Construct a Program by finding it by name.
     static Path FindProgramByName(const std::string& name);
 
-    // These methods change the specified standard stream (stdin,
-    // stdout, or stderr) to binary mode. They return true if an error
-    // occurred
-    static bool ChangeStdinToBinary();
-    static bool ChangeStdoutToBinary();
-    static bool ChangeStderrToBinary();
+    // These methods change the specified standard stream (stdin, stdout, or
+    // stderr) to binary mode. They return errc::success if the specified stream
+    // was changed. Otherwise a platform dependent error is returned.
+    static error_code ChangeStdinToBinary();
+    static error_code ChangeStdoutToBinary();
+    static error_code ChangeStderrToBinary();
 
     /// A convenience function equivalent to Program prg; prg.Execute(..);
     /// prg.Wait(..);
@@ -139,8 +139,7 @@ namespace sys {
                               const sys::Path** redirects = 0,
                               unsigned secondsToWait = 0,
                               unsigned memoryLimit = 0,
-                              std::string* ErrMsg = 0,
-                              const char *SignalPrefix = 0);
+                              std::string* ErrMsg = 0);
 
     /// A convenience function equivalent to Program prg; prg.Execute(..);
     /// @see Execute