blob: 2e799163af411447ae02256deb979a6e12d7dd4a [file] [log] [blame]
// Copyright 2014 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 main
import (
"bufio"
"flag"
"fmt"
"log"
"os"
"cmd/asm/internal/arch"
"cmd/asm/internal/asm"
"cmd/asm/internal/flags"
"cmd/asm/internal/lex"
"cmd/internal/bio"
"cmd/internal/obj"
"cmd/internal/objabi"
)
func main() {
log.SetFlags(0)
log.SetPrefix("asm: ")
GOARCH := objabi.GOARCH
architecture := arch.Set(GOARCH)
if architecture == nil {
log.Fatalf("unrecognized architecture %s", GOARCH)
}
flags.Parse()
ctxt := obj.Linknew(architecture.LinkArch)
if *flags.PrintOut {
ctxt.Debugasm = true
}
ctxt.Flag_dynlink = *flags.Dynlink
ctxt.Flag_shared = *flags.Shared || *flags.Dynlink
ctxt.Bso = bufio.NewWriter(os.Stdout)
defer ctxt.Bso.Flush()
architecture.Init(ctxt)
// Create object file, write header.
out, err := os.Create(*flags.OutputFile)
if err != nil {
log.Fatal(err)
}
defer bio.MustClose(out)
buf := bufio.NewWriter(bio.MustWriter(out))
fmt.Fprintf(buf, "go object %s %s %s\n", objabi.GOOS, objabi.GOARCH, objabi.Version)
fmt.Fprintf(buf, "!\n")
var ok, diag bool
var failedFile string
for _, f := range flag.Args() {
lexer := lex.NewLexer(f)
parser := asm.NewParser(ctxt, architecture, lexer)
ctxt.DiagFunc = func(format string, args ...interface{}) {
diag = true
log.Printf(format, args...)
}
pList := new(obj.Plist)
pList.Firstpc, ok = parser.Parse()
if !ok {
failedFile = f
break
}
// reports errors to parser.Errorf
obj.Flushplist(ctxt, pList, nil)
}
if ok {
obj.WriteObjFile(ctxt, buf)
}
if !ok || diag {
if failedFile != "" {
log.Printf("assembly of %s failed", failedFile)
} else {
log.Print("assembly failed")
}
out.Close()
os.Remove(*flags.OutputFile)
os.Exit(1)
}
buf.Flush()
}