// Copyright 2018 Google Inc. 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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package main
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import (
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"flag"
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"fmt"
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"os"
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"android/soong/symbol_inject"
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)
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var (
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input = flag.String("i", "", "input file")
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output = flag.String("o", "", "output file")
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symbol = flag.String("s", "", "symbol to inject into")
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from = flag.String("from", "", "optional existing value of the symbol for verification")
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value = flag.String("v", "", "value to inject into symbol")
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dump = flag.Bool("dump", false, "dump the symbol table for copying into a test")
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)
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func main() {
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flag.Parse()
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usageError := func(s string) {
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fmt.Fprintln(os.Stderr, s)
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flag.Usage()
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os.Exit(1)
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}
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if *input == "" {
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usageError("-i is required")
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}
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if !*dump {
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if *output == "" {
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usageError("-o is required")
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}
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if *symbol == "" {
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usageError("-s is required")
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}
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if *value == "" {
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usageError("-v is required")
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}
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}
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r, err := os.Open(*input)
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if err != nil {
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fmt.Fprintln(os.Stderr, err.Error())
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os.Exit(2)
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}
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defer r.Close()
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if *dump {
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err := symbol_inject.DumpSymbols(r)
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if err != nil {
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fmt.Fprintln(os.Stderr, err.Error())
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os.Exit(6)
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}
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return
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}
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w, err := os.OpenFile(*output, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0777)
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if err != nil {
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fmt.Fprintln(os.Stderr, err.Error())
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os.Exit(3)
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}
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defer w.Close()
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file, err := symbol_inject.OpenFile(r)
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if err != nil {
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fmt.Fprintln(os.Stderr, err.Error())
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os.Exit(4)
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}
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err = symbol_inject.InjectStringSymbol(file, w, *symbol, *value, *from)
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if err != nil {
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fmt.Fprintln(os.Stderr, err.Error())
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os.Remove(*output)
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os.Exit(5)
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}
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}
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