| // 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 |
| } |
