3 files changed, 25 insertions, 0 deletions
diff --git a/tools/lto/LTOCodeGenerator.cpp b/tools/lto/LTOCodeGenerator.cpp
index 911fddf..7850b5d 100644
--- a/tools/lto/LTOCodeGenerator.cpp
+++ b/tools/lto/LTOCodeGenerator.cpp
@@ -126,6 +126,14 @@ void LTOCodeGenerator::setAssemblerPath(const char* path)
     _assemblerPath = new sys::Path(path);
 }
 
+void LTOCodeGenerator::setAssemblerArgs(const char** args, int nargs)
+{
+  for (int i = 0; i < nargs; ++i) {
+    const char *arg = args[i];
+    _assemblerArgs.push_back(arg);
+  }
+}
+
 void LTOCodeGenerator::addMustPreserveSymbol(const char* sym)
 {
     _mustPreserveSymbols[sym] = 1;
@@ -257,6 +265,11 @@ bool LTOCodeGenerator::assemble(const std::string& asmPath,
         args.push_back("-c");
         args.push_back("-x");
         args.push_back("assembler");
+    } else {
+        for (std::vector<std::string>::iterator I = _assemblerArgs.begin(),
+               E = _assemblerArgs.end(); I != E; ++I) {
+            args.push_back(I->c_str());
+        }
     }
     args.push_back("-o");
     args.push_back(objPath.c_str());
diff --git a/tools/lto/LTOCodeGenerator.h b/tools/lto/LTOCodeGenerator.h
index cac3b8c..9086bef 100644
--- a/tools/lto/LTOCodeGenerator.h
+++ b/tools/lto/LTOCodeGenerator.h
@@ -37,6 +37,7 @@ struct LTOCodeGenerator {
     bool                setDebugInfo(lto_debug_model, std::string& errMsg);
     bool                setCodePICModel(lto_codegen_model, std::string& errMsg);
     void                setAssemblerPath(const char* path);
+    void                setAssemblerArgs(const char** args, int nargs);
     void                addMustPreserveSymbol(const char* sym);
     bool                writeMergedModules(const char* path, 
                                                            std::string& errMsg);
@@ -62,6 +63,7 @@ private:
     llvm::MemoryBuffer*         _nativeObjectFile;
     std::vector<const char*>    _codegenOptions;
     llvm::sys::Path*            _assemblerPath;
+    std::vector<std::string>    _assemblerArgs;
 };
 
 #endif // LTO_CODE_GENERATOR_H
diff --git a/tools/lto/lto.cpp b/tools/lto/lto.cpp
index a299dd1..703447b 100644
--- a/tools/lto/lto.cpp
+++ b/tools/lto/lto.cpp
@@ -218,6 +218,16 @@ void lto_codegen_set_assembler_path(lto_code_gen_t cg, const char* path)
     cg->setAssemblerPath(path);
 }
 
+
+//
+// sets extra arguments that libLTO should pass to the assembler
+//
+void lto_codegen_set_assembler_args(lto_code_gen_t cg, const char** args,
+                                    int nargs)
+{
+  cg->setAssemblerArgs(args, nargs);
+}
+
 //
 // adds to a list of all global symbols that must exist in the final
 // generated code.  If a function is not listed there, it might be