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5fe9bbcf63
Begin passing coutbuf by as a parameter. To make the initial plumbing pass easier, it is also a field in the standard ctxt parameter. Consolidate the byte writing functions into the OutBuf object. The result is less architecture-dependent initialization. To avoid plumbing out everywhere we want to report an error, move handling of out file deletion to an AtExit function. For #22095 Change-Id: I0863695241562e0662ae3669666c7922b8c846f9 Reviewed-on: https://go-review.googlesource.com/67318 Run-TryBot: David Crawshaw <crawshaw@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
145 lines
2.6 KiB
Go
145 lines
2.6 KiB
Go
// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package ld
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import (
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"bytes"
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"encoding/binary"
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"fmt"
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"os"
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"strings"
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"time"
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)
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var startTime time.Time
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// TODO(josharian): delete. See issue 19865.
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func Cputime() float64 {
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if startTime.IsZero() {
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startTime = time.Now()
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}
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return time.Since(startTime).Seconds()
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}
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func cstring(x []byte) string {
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i := bytes.IndexByte(x, '\x00')
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if i >= 0 {
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x = x[:i]
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}
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return string(x)
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}
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func tokenize(s string) []string {
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var f []string
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for {
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s = strings.TrimLeft(s, " \t\r\n")
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if s == "" {
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break
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}
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quote := false
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i := 0
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for ; i < len(s); i++ {
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if s[i] == '\'' {
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if quote && i+1 < len(s) && s[i+1] == '\'' {
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i++
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continue
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}
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quote = !quote
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}
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if !quote && (s[i] == ' ' || s[i] == '\t' || s[i] == '\r' || s[i] == '\n') {
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break
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}
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}
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next := s[:i]
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s = s[i:]
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if strings.Contains(next, "'") {
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var buf []byte
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quote := false
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for i := 0; i < len(next); i++ {
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if next[i] == '\'' {
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if quote && i+1 < len(next) && next[i+1] == '\'' {
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i++
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buf = append(buf, '\'')
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}
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quote = !quote
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continue
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}
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buf = append(buf, next[i])
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}
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next = string(buf)
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}
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f = append(f, next)
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}
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return f
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}
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var atExitFuncs []func()
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func AtExit(f func()) {
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atExitFuncs = append(atExitFuncs, f)
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}
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// Exit exits with code after executing all atExitFuncs.
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func Exit(code int) {
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for i := len(atExitFuncs) - 1; i >= 0; i-- {
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atExitFuncs[i]()
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}
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os.Exit(code)
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}
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// Exitf logs an error message then calls Exit(2).
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func Exitf(format string, a ...interface{}) {
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fmt.Fprintf(os.Stderr, os.Args[0]+": "+format+"\n", a...)
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nerrors++
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Exit(2)
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}
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// Errorf logs an error message.
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//
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// If more than 20 errors have been printed, exit with an error.
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//
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// Logging an error means that on exit cmd/link will delete any
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// output file and return a non-zero error code.
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func Errorf(s *Symbol, format string, args ...interface{}) {
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if s != nil {
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format = s.Name + ": " + format
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}
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format += "\n"
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fmt.Fprintf(os.Stderr, format, args...)
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nerrors++
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if *flagH {
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panic("error")
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}
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if nerrors > 20 {
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Exitf("too many errors")
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}
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}
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func artrim(x []byte) string {
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i := 0
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j := len(x)
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for i < len(x) && x[i] == ' ' {
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i++
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}
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for j > i && x[j-1] == ' ' {
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j--
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}
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return string(x[i:j])
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}
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func stringtouint32(x []uint32, s string) {
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for i := 0; len(s) > 0; i++ {
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var buf [4]byte
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s = s[copy(buf[:], s):]
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x[i] = binary.LittleEndian.Uint32(buf[:])
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}
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}
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var start = time.Now()
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func elapsed() float64 {
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return time.Since(start).Seconds()
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}
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