func main() {
flag.Parse()
if triple == "" {
log.Fatal("No default triple set")
}
if clang == "" {
clang = "clang"
}
var err error
buildctx, err = llgobuild.Context(triple)
if err != nil {
log.Fatal(err)
}
// pkgroot = $GOPATH/pkg/llgo/<triple>
gopath := os.Getenv("GOPATH")
if gopath == "" {
gopath = runtime.GOROOT()
} else {
gopath = filepath.SplitList(gopath)[0]
}
pkgroot = filepath.Join(gopath, "pkg", "llgo", triple)
// Create a temporary work dir.
workdir, err = ioutil.TempDir("", "llgo")
if err != nil {
log.Fatal(err)
}
if work {
log.Println("Working directory:", workdir)
}
args := flag.Args()
if test {
if len(args) > 1 {
err = fmt.Errorf("Multiple files/packages can not be specified when building a test binary")
} else {
err = buildPackageTests(args[0])
}
} else {
err = buildPackages(args)
}
if !work {
os.RemoveAll(workdir)
}
if err != nil {
log.Fatal(err)
}
}
func main() {
flag.Parse()
if triple == "" {
log.Fatal("No default triple set")
}
if clang == "" {
clang = "clang"
}
var err error
buildctx, err = llgobuild.Context(triple)
if err != nil {
log.Fatal(err)
}
// pkgroot = $GOPATH/pkg/llgo/<triple>
gopath := os.Getenv("GOPATH")
if gopath == "" {
gopath = runtime.GOROOT()
} else {
gopath = filepath.SplitList(gopath)[0]
}
pkgroot = filepath.Join(gopath, "pkg", "llgo", triple)
// Create a temporary work dir.
workdir, err = ioutil.TempDir("", "llgo")
if err != nil {
log.Fatal(err)
}
err = buildPackages(flag.Args())
os.RemoveAll(workdir)
if err != nil {
log.Fatal(err)
}
}
func buildLlgo() error {
log.Println("Building llgo")
cmd := command("go", "get", "-d", gollvmpkgpath)
output, err := cmd.CombinedOutput()
if err != nil {
fmt.Fprintf(os.Stderr, "%s\n", string(output))
return err
}
pkg, err := gobuild.Import(gollvmpkgpath, "", gobuild.FindOnly)
if err != nil {
return err
}
if alwaysbuild {
if _, err := os.Stat(pkg.PkgObj); err == nil {
log.Println("- Rebuilding gollvm")
os.Remove(pkg.PkgObj)
}
}
cgoCflags := fmt.Sprintf("%s -I %s/../include", llvmcflags, pkg.Dir)
cgoLdflags := fmt.Sprintf("-Wl,-L%s", llvmlibdir)
ldflags := fmt.Sprintf("-r %q", llvmlibdir)
if sharedllvm {
cgoLdflags += fmt.Sprintf(" -lLLVM-%s ", llvmversion)
} else {
cgoLdflags += " " + llvmlibs + " -lstdc++ -lm "
}
cgoLdflags += " " + llvmldflags
args := []string{"get", "-ldflags", ldflags}
llvmtag := "llvm" + llvmversion
if strings.HasSuffix(llvmversion, "svn") {
llvmtag = "llvmsvn"
}
args = append(args, []string{"-tags", llvmtag}...)
args = append(args, llgopkgpath)
cmd = command("go", args...)
cmd.Env = os.Environ()
cmd.Env = append(cmd.Env, "CGO_CFLAGS="+cgoCflags)
cmd.Env = append(cmd.Env, "CGO_LDFLAGS="+cgoLdflags)
output, err = cmd.CombinedOutput()
if err != nil {
fmt.Fprintf(os.Stderr, "%s\n", string(output))
return err
}
pkg, err = gobuild.Import(llgopkgpath, "", gobuild.FindOnly)
if err != nil {
return err
}
llgobin = path.Join(pkg.BinDir, "llgo")
// If the user did not specify -triple on the command
// line, ask llgo for it now.
if triple == "" {
output, err = command(llgobin, "-print-triple").CombinedOutput()
if err != nil {
fmt.Fprintf(os.Stderr, "%s\n", string(output))
return err
}
triple = strings.TrimSpace(string(output))
}
buildctx, err = build.Context(triple)
if err != nil {
return err
}
log.Printf("GOARCH = %s, GOOS = %s", buildctx.GOARCH, buildctx.GOOS)
log.Printf("Built %s", llgobin)
if install_name_tool && sharedllvm {
// TODO: this was with the LLVM shipped with the pnacl sdk and might not be true of *all* libLLVM-xxx.dylibs.
// Is there a link time commandline option that has the same effect?
cmd = command("install_name_tool", "-change", fmt.Sprintf("@executable_path/../lib/libLLVM-%s.dylib", llvmversion), fmt.Sprintf("%s/libLLVM-%s.dylib", llvmlibdir, llvmversion), llgobin)
output, err = cmd.CombinedOutput()
if err != nil {
fmt.Fprintf(os.Stderr, "%s\n", string(output))
return err
}
log.Printf("Successfully changed shared libLLVM path")
}
return nil
}
func buildLlgo() error {
log.Println("Building llgo")
cmd := exec.Command("go", "get", "-d", gollvmpkgpath)
output, err := cmd.CombinedOutput()
if err != nil {
fmt.Fprintf(os.Stderr, "%s\n", string(output))
return err
}
pkg, err := gobuild.Import(gollvmpkgpath, "", gobuild.FindOnly)
if err != nil {
return err
}
if alwaysbuild {
if _, err := os.Stat(pkg.PkgObj); err == nil {
log.Println("- Rebuilding gollvm")
os.Remove(pkg.PkgObj)
}
}
cgoCflags := fmt.Sprintf("%s -I %s/../include", llvmcflags, pkg.Dir)
cgoLdflags := fmt.Sprintf("-Wl,-L%s", llvmlibdir)
ldflags := fmt.Sprintf("-r %q", llvmlibdir)
if sharedllvm {
cgoLdflags += fmt.Sprintf(" -lLLVM-%s ", llvmversion)
} else {
cgoLdflags += " " + llvmlibs + " -lstdc++ "
}
cgoLdflags += " " + llvmldflags
args := []string{"get", "-ldflags", ldflags}
llvmtag := "llvm" + llvmversion
if strings.HasSuffix(llvmversion, "svn") {
llvmtag = "llvmsvn"
}
args = append(args, []string{"-tags", llvmtag}...)
args = append(args, llgopkgpath)
cmd = exec.Command("go", args...)
cmd.Env = os.Environ()
cmd.Env = append(cmd.Env, "CGO_CFLAGS="+cgoCflags)
cmd.Env = append(cmd.Env, "CGO_LDFLAGS="+cgoLdflags)
output, err = cmd.CombinedOutput()
if err != nil {
fmt.Fprintf(os.Stderr, "%s\n", string(output))
return err
}
pkg, err = gobuild.Import(llgopkgpath, "", gobuild.FindOnly)
if err != nil {
return err
}
llgobin = path.Join(pkg.BinDir, "llgo")
// If the user did not specify -triple on the command
// line, ask llgo for it now.
if triple == "" {
output, err = exec.Command(llgobin, "-print-triple").CombinedOutput()
if err != nil {
fmt.Fprintf(os.Stderr, "%s\n", string(output))
return err
}
triple = strings.TrimSpace(string(output))
}
buildctx, err = build.Context(triple)
if err != nil {
return err
}
log.Printf("GOARCH = %s, GOOS = %s", buildctx.GOARCH, buildctx.GOOS)
log.Printf("Built %s", llgobin)
return nil
}
