tools/syz-symbolize: add report symbolizer utility

tools/syz-symbolize/symbolize.go

@@ -0,0 +1,41 @@
+// Copyright 2016 syzkaller project authors. All rights reserved.
+// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
+
+package main
+
+import (
+	"flag"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+
+	"github.com/google/syzkaller/report"
+)
+
+var (
+	flagLinux = flag.String("linux", "", "path to linux")
+)
+
+func main() {
+	flag.Parse()
+	if len(flag.Args()) != 1 {
+		fmt.Fprintf(os.Stderr, "usage: syz-symbolize [flags] kernel_log_file\n")
+		flag.PrintDefaults()
+		os.Exit(1)
+	}
+	text, err := ioutil.ReadFile(flag.Args()[0])
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "failed to open input file: %v\n", err)
+		os.Exit(1)
+	}
+	if _, parsed, _, _ := report.Parse(text); len(parsed) != 0 {
+		text = parsed
+	}
+	text, err = report.Symbolize(filepath.Join(*flagLinux, "vmlinux"), text)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "failed to symbolize: %v\n", err)
+		os.Exit(1)
+	}
+	os.Stdout.Write(text)
+}