func link(files []string) error {
tempf, err := ioutil.TempFile("", "llgolink")
if err != nil {
return err
}
defer os.Remove(tempf.Name())
defer tempf.Close()
// TODO? Fix order of modules to be based on package dependency.
args := append([]string{"-o", tempf.Name()}, files...)
err = exec.Command(llvmlink, args...).Run()
if err != nil {
return err
}
module, err := llvm.ParseBitcodeFile(tempf.Name())
if err != nil {
return err
}
defer module.Dispose()
f := os.Stdout
if outfile != "-" {
f, err = os.Create(outfile)
if err != nil {
return err
}
defer f.Close()
}
return llvm.WriteBitcodeToFile(module, f)
}
func link(files []string) error {
tempf, err := ioutil.TempFile("", "llgolink")
if err != nil {
return err
}
defer os.Remove(tempf.Name())
defer tempf.Close()
args := append([]string{"-o", tempf.Name()}, files...)
err = exec.Command(llvmlink, args...).Run()
if err != nil {
return err
}
module, err := llvm.ParseBitcodeFile(tempf.Name())
if err != nil {
return err
}
defer module.Dispose()
err = reorderGlobalConstructors(module)
if err != nil {
return err
}
f := os.Stdout
if outfile != "-" {
f, err = os.Create(outfile)
if err != nil {
return err
}
defer f.Close()
}
return llvm.WriteBitcodeToFile(module, f)
}
func getRuntimeModule() (llvm.Module, error) {
gofiles, llfiles, err := getRuntimeFiles()
if err != nil {
return llvm.Module{}, err
}
var runtimeModule *llgo.Module
runtimeModule, err = compileFiles(testCompiler, gofiles, "runtime")
if err != nil {
return llvm.Module{}, err
}
if llfiles != nil {
outfile, err := ioutil.TempFile("", "runtime.ll")
if err != nil {
runtimeModule.Dispose()
return llvm.Module{}, err
}
defer func() {
outfile.Close()
os.Remove(outfile.Name())
}()
err = llvm.WriteBitcodeToFile(runtimeModule.Module, outfile)
if err != nil {
runtimeModule.Dispose()
return llvm.Module{}, err
}
runtimeModule.Dispose()
o := outfile.Name()
for _, llfile := range llfiles {
cmd := exec.Command("llvm-link", "-o", o, o, llfile)
output, err := cmd.CombinedOutput()
if err != nil {
err = fmt.Errorf("llvm-link failed: %s", err)
fmt.Fprintf(os.Stderr, string(output))
return llvm.Module{}, err
}
}
runtimeModule.Module, err = llvm.ParseBitcodeFile(o)
if err != nil {
return llvm.Module{}, err
}
}
return runtimeModule.Module, nil
}