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