Modernize raw_fd_ostream's constructor a bit.

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

diff --git a/tools/llvm-link/llvm-link.cpp b/tools/llvm-link/llvm-link.cpp
index d02fca2ecedc7b4f38867d83479637a35ba88613..9e217201a7250c87b12da4533dad54128b7bd371 100644 (file)
--- a/tools/llvm-link/llvm-link.cpp
+++ b/tools/llvm-link/llvm-link.cpp
@@ -12,17 +12,19 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm/Linker.h"
-#include "llvm/Analysis/Verifier.h"
+#include "llvm/Linker/Linker.h"
 #include "llvm/Bitcode/ReaderWriter.h"
-#include "llvm/LLVMContext.h"
-#include "llvm/Module.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/Verifier.h"
+#include "llvm/IRReader/IRReader.h"
 #include "llvm/Support/CommandLine.h"
-#include "llvm/Support/IRReader.h"
+#include "llvm/Support/FileSystem.h"
 #include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/Path.h"
 #include "llvm/Support/PrettyStackTrace.h"
 #include "llvm/Support/Signals.h"
+#include "llvm/Support/SourceMgr.h"
 #include "llvm/Support/SystemUtils.h"
 #include "llvm/Support/ToolOutputFile.h"
 #include <memory>
@@ -49,35 +51,31 @@ Verbose("v", cl::desc("Print information about actions taken"));
 static cl::opt<bool>
 DumpAsm("d", cl::desc("Print assembly as linked"), cl::Hidden);
 
+static cl::opt<bool>
+SuppressWarnings("suppress-warnings", cl::desc("Suppress all linking warnings"),
+                 cl::init(false));
+
 // LoadFile - Read the specified bitcode file in and return it.  This routine
 // searches the link path for the specified file to try to find it...
 //
-static inline std::auto_ptr<Module> LoadFile(const char *argv0,
-                                             const std::string &FN, 
-                                             LLVMContext& Context) {
-  sys::Path Filename;
-  if (!Filename.set(FN)) {
-    errs() << "Invalid file name: '" << FN << "'\n";
-    return std::auto_ptr<Module>();
-  }
-
+static inline Module *LoadFile(const char *argv0, const std::string &FN,
+                               LLVMContext& Context) {
   SMDiagnostic Err;
-  if (Verbose) errs() << "Loading '" << Filename.c_str() << "'\n";
-  Module* Result = 0;
-  
-  const std::string &FNStr = Filename.str();
-  Result = ParseIRFile(FNStr, Err, Context);
-  if (Result) return std::auto_ptr<Module>(Result);   // Load successful!
+  if (Verbose) errs() << "Loading '" << FN << "'\n";
+  Module* Result = nullptr;
+
+  Result = ParseIRFile(FN, Err, Context);
+  if (Result) return Result;   // Load successful!
 
   Err.print(argv0, errs());
-  return std::auto_ptr<Module>();
+  return nullptr;
 }
 
 int main(int argc, char **argv) {
   // Print a stack trace if we signal out.
   sys::PrintStackTraceOnErrorSignal();
   PrettyStackTraceProgram X(argc, argv);
-  
+
   LLVMContext &Context = getGlobalContext();
   llvm_shutdown_obj Y;  // Call llvm_shutdown() on exit.
   cl::ParseCommandLineOptions(argc, argv, "llvm linker\n");
@@ -85,42 +83,37 @@ int main(int argc, char **argv) {
   unsigned BaseArg = 0;
   std::string ErrorMessage;
 
-  std::auto_ptr<Module> Composite(LoadFile(argv[0],
-                                           InputFilenames[BaseArg], Context));
-  if (Composite.get() == 0) {
+  std::unique_ptr<Module> Composite(
+      LoadFile(argv[0], InputFilenames[BaseArg], Context));
+  if (!Composite.get()) {
     errs() << argv[0] << ": error loading file '"
            << InputFilenames[BaseArg] << "'\n";
     return 1;
   }
 
+  Linker L(Composite.get(), SuppressWarnings);
   for (unsigned i = BaseArg+1; i < InputFilenames.size(); ++i) {
-    std::auto_ptr<Module> M(LoadFile(argv[0],
-                                     InputFilenames[i], Context));
-    if (M.get() == 0) {
+    std::unique_ptr<Module> M(LoadFile(argv[0], InputFilenames[i], Context));
+    if (!M.get()) {
       errs() << argv[0] << ": error loading file '" <<InputFilenames[i]<< "'\n";
       return 1;
     }
 
     if (Verbose) errs() << "Linking in '" << InputFilenames[i] << "'\n";
 
-    if (Linker::LinkModules(Composite.get(), M.get(), Linker::DestroySource,
-                            &ErrorMessage)) {
+    if (L.linkInModule(M.get(), &ErrorMessage)) {
       errs() << argv[0] << ": link error in '" << InputFilenames[i]
              << "': " << ErrorMessage << "\n";
       return 1;
     }
   }
 
-  // TODO: Iterate over the -l list and link in any modules containing
-  // global symbols that have not been resolved so far.
-
   if (DumpAsm) errs() << "Here's the assembly:\n" << *Composite;
 
-  std::string ErrorInfo;
-  tool_output_file Out(OutputFilename.c_str(), ErrorInfo,
-                       raw_fd_ostream::F_Binary);
-  if (!ErrorInfo.empty()) {
-    errs() << ErrorInfo << '\n';
+  std::error_code EC;
+  tool_output_file Out(OutputFilename, EC, sys::fs::F_None);
+  if (EC) {
+    errs() << EC.message() << '\n';
     return 1;
   }