From 4b23e794ca9677808de8a5441f84968052fc794c Mon Sep 17 00:00:00 2001
From: David Nadlinger <code@klickverbot.at>
Date: Sun, 2 Sep 2012 21:25:08 +0200
Subject: [PATCH] Removed linkExecutable() (dead code).

---
 driver/linker.cpp | 161 ----------------------------------------------
 driver/linker.h   |  11 +---
 2 files changed, 2 insertions(+), 170 deletions(-)

diff --git a/driver/linker.cpp b/driver/linker.cpp
index b5113ef0..03027723 100644
--- a/driver/linker.cpp
+++ b/driver/linker.cpp
@@ -58,167 +58,6 @@ void linkModules(llvm::Module* dst, const Module_vector& MV)
 
 static llvm::sys::Path gExePath;
 
-int linkExecutable(const char* argv0)
-{
-    Logger::println("*** Linking executable ***");
-
-    // error string
-    std::string errstr;
-
-    // find the llvm-ld program
-	llvm::sys::Path ldpath = llvm::sys::Program::FindProgramByName("llvm-ld");
-    if (ldpath.isEmpty())
-    {
-		ldpath.set("llvm-ld");
-    }
-
-    // build arguments
-    std::vector<const char*> args;
-
-    // first the program name ??
-    args.push_back("llvm-ld");
-
-    // output filename
-    std::string exestr;
-    if (global.params.exefile)
-    {   // explicit
-        exestr = global.params.exefile;
-    }
-    else
-    {   // inferred
-        // try root module name
-        if (Module::rootModule)
-            exestr = Module::rootModule->toChars();
-        else
-            exestr = "a.out";
-    }
-    if (global.params.os == OSWindows && !(exestr.substr(exestr.length()-4) == ".exe"))
-        exestr.append(".exe");
-
-    std::string outopt = "-o=" + exestr;
-    args.push_back(outopt.c_str());
-
-    // set the global gExePath
-    gExePath.set(exestr);
-    assert(gExePath.isValid());
-
-    // create path to exe
-    llvm::sys::Path exedir(llvm::sys::path::parent_path(gExePath.str()));
-    if (!llvm::sys::fs::exists(exedir.str()))
-    {
-        exedir.createDirectoryOnDisk(true, &errstr);
-        if (!errstr.empty())
-        {
-            error("failed to create path to linking output: %s\n%s", exedir.c_str(), errstr.c_str());
-            fatal();
-        }
-    }
-
-    // strip debug info
-    if (!global.params.symdebug)
-        args.push_back("-strip-debug");
-
-    // optimization level
-    if (!optimize())
-        args.push_back("-disable-opt");
-    else
-    {
-        switch(optLevel())
-        {
-        case 0:
-            args.push_back("-disable-opt");
-            break;
-        case 1:
-            args.push_back("-globaldce");
-            args.push_back("-disable-opt");
-            args.push_back("-globaldce");
-            args.push_back("-mem2reg");
-        case 2:
-        case 3:
-        case 4:
-        case 5:
-            // use default optimization
-            break;
-        default:
-            assert(0);
-        }
-    }
-
-    // inlining
-    if (!(global.params.useInline || doInline()))
-    {
-        args.push_back("-disable-inlining");
-    }
-
-    // additional linker switches
-    for (unsigned i = 0; i < global.params.linkswitches->dim; i++)
-    {
-        char *p = static_cast<char *>(global.params.linkswitches->data[i]);
-        args.push_back(p);
-    }
-
-    // native please
-    args.push_back("-native");
-
-
-    // user libs
-    for (unsigned i = 0; i < global.params.libfiles->dim; i++)
-    {
-        char *p = static_cast<char *>(global.params.libfiles->data[i]);
-        args.push_back(p);
-    }
-
-    // default libs
-    switch(global.params.os) {
-    case OSLinux:
-    case OSMacOSX:
-        args.push_back("-ldl");
-    case OSFreeBSD:
-        args.push_back("-lpthread");
-        args.push_back("-lm");
-        break;
-    case OSHaiku:
-        args.push_back("-lroot");
-        break;
-    case OSWindows:
-        // FIXME: I'd assume kernel32 etc
-        break;
-    }
-
-    // object files
-    for (unsigned i = 0; i < global.params.objfiles->dim; i++)
-    {
-        char *p = static_cast<char *>(global.params.objfiles->data[i]);
-        args.push_back(p);
-    }
-
-    // print link command?
-    if (!quiet || global.params.verbose)
-    {
-        // Print it
-        for (int i = 0; i < args.size(); i++)
-            printf("%s ", args[i]);
-        printf("\n");
-        fflush(stdout);
-    }
-
-    // terminate args list
-    args.push_back(NULL);
-
-    // try to call linker!!!
-    if (int status = llvm::sys::Program::ExecuteAndWait(ldpath, &args[0], NULL, NULL, 0,0, &errstr))
-    {
-        error("linking failed:\nstatus: %d", status);
-        if (!errstr.empty())
-            error("message: %s", errstr.c_str());
-        return status;
-    }
-
-    return 0;
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
 int linkObjToBinary(bool sharedLib)
 {
     Logger::println("*** Linking executable ***");
diff --git a/driver/linker.h b/driver/linker.h
index d76c1778..e2844732 100644
--- a/driver/linker.h
+++ b/driver/linker.h
@@ -18,13 +18,6 @@ namespace llvm
  */
 void linkModules(llvm::Module* dst, const std::vector<llvm::Module*>& MV);
 
-/**
- * Link an executable.
- * @param argv0 the argv[0] value as passed to main
- * @return 0 on success.
- */
-int linkExecutable(const char* argv0);
-
 /**
  * Link an executable only from object files.
  * @param argv0 the argv[0] value as passed to main
@@ -38,12 +31,12 @@ int linkObjToBinary(bool sharedLib);
 void createStaticLibrary();
 
 /**
- * Delete the executable that was previously linked with linkExecutable.
+ * Delete the executable that was previously linked with linkObjToBinary.
  */
 void deleteExecutable();
 
 /**
- * Runs the executable that was previously linked with linkExecutable.
+ * Runs the executable that was previously linked with linkObjToBinary.
  * @return the return status of the executable.
  */
 int runExecutable();