Define InitLLVM to do common initialization all at once.

We have a few functions that virtually all command wants to run on
process startup/shutdown. This patch adds InitLLVM class to do that
all at once, so that we don't need to copy-n-paste boilerplate code
to each llvm command's main() function.

Differential Revision: https://reviews.llvm.org/D45602

llvm-svn: 330046

1 files changed, 3 insertions, 8 deletions

diff --git a/llvm/tools/llvm-readobj/llvm-readobj.cpp b/llvm/tools/llvm-readobj/llvm-readobj.cpp
index 1d87b87d437..2ff92a0a21f 100644
--- a/llvm/tools/llvm-readobj/llvm-readobj.cpp
+++ b/llvm/tools/llvm-readobj/llvm-readobj.cpp
@@ -35,11 +35,9 @@
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/FormatVariadic.h"
-#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/InitLLVM.h"
 #include "llvm/Support/Path.h"
-#include "llvm/Support/PrettyStackTrace.h"
 #include "llvm/Support/ScopedPrinter.h"
-#include "llvm/Support/Signals.h"
 #include "llvm/Support/TargetRegistry.h"
 
 using namespace llvm;
@@ -556,17 +554,14 @@ static void dumpInput(StringRef File) {
 }
 
 int main(int argc, const char *argv[]) {
-  StringRef ToolName = argv[0];
-  sys::PrintStackTraceOnErrorSignal(ToolName);
-  PrettyStackTraceProgram X(argc, argv);
-  llvm_shutdown_obj Y;
+  InitLLVM X(argc, argv);
 
   // Register the target printer for --version.
   cl::AddExtraVersionPrinter(TargetRegistry::printRegisteredTargetsForVersion);
 
   opts::WideOutput.setHiddenFlag(cl::Hidden);
 
-  if (sys::path::stem(ToolName).find("readelf") != StringRef::npos)
+  if (sys::path::stem(argv[0]).find("readelf") != StringRef::npos)
     opts::Output = opts::GNU;
 
   cl::ParseCommandLineOptions(argc, argv, "LLVM Object Reader\n");