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