llgo install: use clang to link

x/clang/clang.go

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package clang
+
+import (
+	"os"
+	"os/exec"
+)
+
+// -----------------------------------------------------------------------------
+
+// Cmd represents a nm command.
+type Cmd struct {
+	app string
+}
+
+// New creates a new nm command.
+func New(app string) *Cmd {
+	if app == "" {
+		app = "clang"
+	}
+	return &Cmd{app}
+}
+
+func (p *Cmd) Exec(args ...string) error {
+	cmd := exec.Command(p.app, args...)
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	return cmd.Run()
+}
+
+// -----------------------------------------------------------------------------

x/llexportdata/llexportdata.go

@@ -1,40 +0,0 @@
-/*
- * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package llexportdata
-
-import (
-	"go/token"
-	"go/types"
-	"io"
-)
-
-// Read reads export data from in, decodes it, and returns type information for the package.
-//
-// The package path (effectively its linker symbol prefix) is specified by path, since unlike
-// the package name, this information may not be recorded in the export data.
-//
-// File position information is added to fset.
-//
-// Read may inspect and add to the imports map to ensure that references within the export data
-// to other packages are consistent. The caller must ensure that imports[path] does not exist,
-// or exists but is incomplete (see types.Package.Complete), and Read inserts the resulting package
-// into this map entry.
-//
-// On return, the state of the reader is undefined.
-func Read(in io.Reader, fset *token.FileSet, imports map[string]*types.Package, path string) (*types.Package, error) {
-	panic("todo")
-}