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// 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 objabi
import (
"fmt"
"strings"
"internal/buildcfg"
)
const (
ElfRelocOffset = 256
MachoRelocOffset = 2048 // reserve enough space for ELF relocations
GlobalDictPrefix = ".dict" // prefix for names of global dictionaries
)
// HeaderString returns the toolchain configuration string written in
// Go object headers. This string ensures we don't attempt to import
// or link object files that are incompatible with each other. This
// string always starts with "go object ".
func HeaderString() string {
archExtra := ""
if k, v := buildcfg.GOGOARCH(); k != "" && v != "" {
archExtra = " " + k + "=" + v
}
return fmt.Sprintf("go object %s %s %s%s X:%s\n",
buildcfg.GOOS, buildcfg.GOARCH,
buildcfg.Version, archExtra,
strings.Join(buildcfg.Experiment.Enabled(), ","))
}
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