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// Derived from Inferno utils/6l/obj.c and utils/6l/span.c
// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/6l/obj.c
// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/6l/span.c
//
// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
// Portions Copyright © 1997-1999 Vita Nuova Limited
// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
// Portions Copyright © 2004,2006 Bruce Ellis
// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
// Portions Copyright © 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package obj
import (
"log"
"os"
"path/filepath"
)
func Linknew(arch *LinkArch) *Link {
ctxt := new(Link)
ctxt.Hash = make(map[SymVer]*LSym)
ctxt.Arch = arch
ctxt.Version = HistVersion
var buf string
buf, _ = os.Getwd()
if buf == "" {
buf = "/???"
}
buf = filepath.ToSlash(buf)
ctxt.Pathname = buf
ctxt.LineHist.GOROOT = GOROOT
ctxt.LineHist.Dir = ctxt.Pathname
ctxt.Headtype.Set(GOOS)
if ctxt.Headtype < 0 {
log.Fatalf("unknown goos %s", GOOS)
}
ctxt.Flag_optimize = true
ctxt.Framepointer_enabled = Framepointer_enabled(GOOS, arch.Name)
return ctxt
}
func Linklookup(ctxt *Link, name string, v int) *LSym {
s := ctxt.Hash[SymVer{name, v}]
if s != nil {
return s
}
s = &LSym{
Name: name,
Type: 0,
Version: int16(v),
Size: 0,
}
ctxt.Hash[SymVer{name, v}] = s
return s
}
func Linksymfmt(s *LSym) string {
if s == nil {
return "<nil>"
}
return s.Name
}
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