1 files changed, 113 insertions, 0 deletions
diff --git a/src/cmd/internal/obj/util.go b/src/cmd/internal/obj/util.go
new file mode 100644
index 0000000000..842e42ba50
--- /dev/null
+++ b/src/cmd/internal/obj/util.go
@@ -0,0 +1,113 @@
+// Copyright 2015 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package obj
+
+import (
+	"bufio"
+	"fmt"
+	"go/build"
+	"io"
+	"os"
+	"strconv"
+	"time"
+)
+
+var start time.Time
+
+func Cputime() float64 {
+	if start.IsZero() {
+		start = time.Now()
+	}
+	return time.Since(start).Seconds()
+}
+
+type Biobuf struct {
+	unget     int
+	haveUnget bool
+	r         *bufio.Reader
+	w         *bufio.Writer
+}
+
+func Binitw(w io.Writer) *Biobuf {
+	return &Biobuf{w: bufio.NewWriter(w)}
+}
+
+func (b *Biobuf) Write(p []byte) (int, error) {
+	return b.w.Write(p)
+}
+
+func (b *Biobuf) Flush() error {
+	return b.w.Flush()
+}
+
+func Bwrite(b *Biobuf, p []byte) (int, error) {
+	return b.w.Write(p)
+}
+
+func Bputc(b *Biobuf, c byte) {
+	b.w.WriteByte(c)
+}
+
+func Bgetc(b *Biobuf) int {
+	if b.haveUnget {
+		b.haveUnget = false
+		return int(b.unget)
+	}
+	c, err := b.r.ReadByte()
+	if err != nil {
+		b.unget = -1
+		return -1
+	}
+	b.unget = int(c)
+	return int(c)
+}
+
+func Bungetc(b *Biobuf) {
+	b.haveUnget = true
+}
+
+func Boffset(b *Biobuf) int64 {
+	panic("Boffset")
+}
+
+func Bflush(b *Biobuf) error {
+	return b.w.Flush()
+}
+
+func Getgoroot() string {
+	return build.Default.GOROOT
+}
+
+func Getgoarch() string {
+	return build.Default.GOARCH
+}
+
+func Getgoos() string {
+	return build.Default.GOOS
+}
+
+func Atoi(s string) int {
+	i, _ := strconv.Atoi(s)
+	return i
+}
+
+func Getgoarm() string {
+	env := os.Getenv("GOARM")
+	if env != "" {
+		return env
+	}
+	return "5"
+}
+
+func (p *Prog) Line() string {
+	return linklinefmt(p.Ctxt, int(p.Lineno), false, false)
+}
+
+func (p *Prog) String() string {
+	if p.Ctxt == nil {
+		return fmt.Sprintf("<Prog without ctxt>")
+	}
+	return p.Ctxt.Arch.Pconv(p)
+}