Generalize abstract interpreter interface to allow linking in an arbitrary number...

[oota-llvm.git] / tools / bugpoint / bugpoint.cpp

diff --git a/tools/bugpoint/bugpoint.cpp b/tools/bugpoint/bugpoint.cpp
index d58d0a6d868e3ab40baa41d7ee2450c21a26b874..25fe1a25245fe04c7b88992952fd9a5d39deeb2f 100644 (file)
--- a/tools/bugpoint/bugpoint.cpp
+++ b/tools/bugpoint/bugpoint.cpp
@@ -1,5 +1,4 @@
-//===----------------------------------------------------------------------===//
-// LLVM BugPoint Utility 
+//===- bugpoint.cpp - The LLVM BugPoint utility ---------------------------===//
 //
 // This program is an automated compiler debugger tool.  It is used to narrow
 // down miscompilations and crash problems to a specific pass in the compiler,
@@ -8,8 +7,10 @@
 //===----------------------------------------------------------------------===//
 
 #include "BugDriver.h"
-#include "Support/CommandLine.h"
 #include "llvm/Support/PassNameParser.h"
+#include "Support/CommandLine.h"
+#include "Config/unistd.h"
+#include <sys/resource.h>
 
 static cl::list<std::string>
 InputFilenames(cl::Positional, cl::OneOrMore,
@@ -19,21 +20,24 @@ InputFilenames(cl::Positional, cl::OneOrMore,
 // PassNameParser.
 //
 static cl::list<const PassInfo*, bool, PassNameParser>
-PassList(cl::desc("Passes available:"), cl::OneOrMore);
-
-//cl::list<std::string>
-//InputArgv(cl::ConsumeAfter, cl::desc("<program arguments>..."));
-
-//cl::opt<bool>
-//Verbose("v", cl::desc("Enable verbose output"));
+PassList(cl::desc("Passes available:"), cl::ZeroOrMore);
 
 int main(int argc, char **argv) {
   cl::ParseCommandLineOptions(argc, argv);
 
-  
   BugDriver D(argv[0]);
   if (D.addSources(InputFilenames)) return 1;
   D.addPasses(PassList.begin(), PassList.end());
 
+  // Bugpoint has the ability of generating a plethora of core files, so to
+  // avoid filling up the disk, set the max core file size to 0.
+  struct rlimit rlim;
+  rlim.rlim_cur = rlim.rlim_max = 0;
+  int res = setrlimit(RLIMIT_CORE, &rlim);
+  if (res < 0) {
+    // setrlimit() may have failed, but we're not going to let that stop us
+    perror("setrlimit: RLIMIT_CORE");
+  }
+
   return D.run();
 }