When exec() fails, return 127 instead of errno; the parent process has no way to

distinguish that the result is errno, so it can't use it to provide more
information about the error (it also exposes the numeric value of errno).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78098 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/System/Unix/Program.inc b/lib/System/Unix/Program.inc
index 3a562e45d41d5df83e5c2b506929c3fa5d370ffb..d2baca80025b52d0ce2533d2cb5631dc4cef0c3c 100644 (file)
--- a/lib/System/Unix/Program.inc
+++ b/lib/System/Unix/Program.inc
@@ -197,12 +197,12 @@ Program::Execute(const Path& path,
 
       // Execute!
       if (envp != 0)
-        execve (path.c_str(), (char**)args, (char**)envp);
+        execve(path.c_str(), (char**)args, (char**)envp);
       else
-        execv (path.c_str(), (char**)args);
+        execv(path.c_str(), (char**)args);
       // If the execve() failed, we should exit and let the parent pick up
       // our non-zero exit status.
-      exit (errno);
+      exit(127);
     }
 
     // Parent process: Break out of the switch to do our processing.