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(gExePath);
exedir.set(gExePath.getDirname());
if (!exedir.exists())
{
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 (int i = 0; i < global.params.linkswitches->dim; i++)
{
char *p = (char *)global.params.linkswitches->data[i];
args.push_back(p);
}
// native please
args.push_back("-native");
// user libs
for (int i = 0; i < global.params.libfiles->dim; i++)
{
char *p = (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 (int i = 0; i < global.params.objfiles->dim; i++)
{
char *p = (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 linkObjToExecutable(const char* argv0)
{
Logger::println("*** Linking executable ***");
// error string
std::string errstr;
// find gcc for linking
llvm::sys::Path gcc = getGcc();
// get a string version for argv[0]
const char* gccStr = gcc.c_str();
// build arguments
std::vector<const char*> args;
// first the program name ??
args.push_back(gccStr);
// object files
for (int i = 0; i < global.params.objfiles->dim; i++)
{
char *p = (char *)global.params.objfiles->data[i];
args.push_back(p);
}
// 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 if (global.params.objfiles->dim)
exestr = FileName::removeExt((char*)global.params.objfiles->data[0]);
else
exestr = "a.out";
}
if (global.params.os == OSWindows && !(exestr.rfind(".exe") == exestr.length()-4))
exestr.append(".exe");
args.push_back("-o");
args.push_back(exestr.c_str());
// set the global gExePath
gExePath.set(exestr);
assert(gExePath.isValid());
// create path to exe
llvm::sys::Path exedir(gExePath);
exedir.set(gExePath.getDirname());
if (!exedir.exists())
{
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();
}
}
// additional linker switches
for (int i = 0; i < global.params.linkswitches->dim; i++)
{
char *p = (char *)global.params.linkswitches->data[i];
args.push_back(p);
}
// user libs
for (int i = 0; i < global.params.libfiles->dim; i++)
{
char *p = (char *)global.params.libfiles->data[i];
args.push_back(p);
}
// default libs
switch(global.params.os) {
case OSLinux:
args.push_back("-lrt");
// fallthrough
case OSMacOSX:
args.push_back("-ldl");
// fallthrough
case OSFreeBSD:
args.push_back("-lpthread");
args.push_back("-lm");
break;
case OSSolaris:
args.push_back("-lm");
args.push_back("-lumem");
// solaris TODO
break;
case OSWindows:
// FIXME: I'd assume kernel32 etc
break;
}
//FIXME: enforce 64 bit
if (global.params.is64bit)
args.push_back("-m64");
else
// Assume 32-bit?
args.push_back("-m32");
// 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);
}
Logger::println("Linking with: ");
std::vector<const char*>::const_iterator I = args.begin(), E = args.end();
Stream logstr = Logger::cout();
for (; I != E; ++I)
if (*I)
logstr << "'" << *I << "'" << " ";
logstr << "\n"; // FIXME where's flush ?
// terminate args list
args.push_back(NULL);
// try to call linker
if (int status = llvm::sys::Program::ExecuteAndWait(gcc, &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;
}