nmindex

chore/nmindex/nmindex.go

@@ -0,0 +1,79 @@
+/*
+ * 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 main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/goplus/llgo/x/env/llvm"
+	"github.com/goplus/llgo/x/nm"
+)
+
+func main() {
+	if len(os.Args) < 2 {
+		fmt.Fprint(os.Stderr, `Usage:
+	nmindex <command> [arguments]
+
+The commands are:
+
+	mk		Create index file
+	q		Query a symbol
+
+`)
+		return
+	}
+
+	cmd := os.Args[1]
+	switch cmd {
+	case "mk":
+		makeIndex()
+	case "q":
+		query()
+	default:
+		fmt.Fprintf(os.Stderr, "unknown command: %s\n", cmd)
+	}
+}
+
+func makeIndex() {
+	env := llvm.New()
+	if env.Root() == "" {
+		fmt.Fprintln(os.Stderr, "Please set LLGO_LLVM_ROOT first.")
+		return
+	}
+
+	home, err := os.UserHomeDir()
+	check(err)
+	idxDir := home + "/.llgo/nmindex"
+	os.MkdirAll(idxDir, 0755)
+
+	b := nm.NewIndexBuilder(env.Nm())
+	err = b.Index(env.Root()+"/lib", idxDir, func(path string) {
+		fmt.Println("==>", path)
+	})
+	check(err)
+}
+
+func query() {
+	panic("todo")
+}
+
+func check(err error) {
+	if err != nil {
+		panic(err)
+	}
+}