87 lines
2.1 KiB
Go
87 lines
2.1 KiB
Go
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/*
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* Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package nm
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import (
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"bytes"
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"log"
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"os"
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"path/filepath"
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"strings"
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)
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type IndexBuilder struct {
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nm *Cmd
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}
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func NewIndexBuilder(nm *Cmd) *IndexBuilder {
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return &IndexBuilder{nm}
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}
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func (p *IndexBuilder) Index(fromDir, toDir string, progress func(path string)) (err error) {
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return filepath.WalkDir(fromDir, func(path string, d os.DirEntry, err error) error {
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if err != nil {
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return err
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}
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if d.IsDir() {
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return nil
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}
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fname := d.Name()
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switch filepath.Ext(fname) {
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case ".a", ".dylib", ".so", ".dll", ".lib":
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progress(path)
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outFile := filepath.Join(toDir, strings.TrimPrefix(fname, "lib")+".pub")
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e := p.IndexFile(path, outFile)
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if e != nil {
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log.Println(e)
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}
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}
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return nil
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})
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}
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func (p *IndexBuilder) IndexFile(arFile, outFile string) (err error) {
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items, err := p.nm.List(arFile)
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if err != nil {
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return
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}
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var b bytes.Buffer
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b.WriteString("file ")
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b.WriteString(arFile)
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b.WriteByte('\n')
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nbase := b.Len()
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for _, item := range items {
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for _, sym := range item.Symbols {
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switch sym.Type {
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case Text, Data, BSS, Rodata, 'S':
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b.WriteByte(byte(sym.Type))
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b.WriteByte(' ')
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b.WriteString(sym.Name)
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b.WriteByte('\n')
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case Undefined, LocalText, LocalData, LocalBSS, LocalASym, 'I', 'i', 'a':
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default:
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log.Printf("unknown symbol type %c: %s\n", sym.Type, sym.Name)
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}
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}
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}
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buf := b.Bytes()
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if len(buf) <= nbase {
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return
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}
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return os.WriteFile(outFile, buf, 0666)
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}
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