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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
/*
* add library to library list.
* srcref: src file referring to package
* objref: object file referring to package
* file: object file, e.g., /home/rsc/go/pkg/container/vector.a
* pkg: package import path, e.g. container/vector
*/
const (
LOG = 5
)
func mkfwd(sym *LSym) {
var dwn [LOG]int32
var cnt [LOG]int32
var lst [LOG]*Prog
for i := 0; i < LOG; i++ {
if i == 0 {
cnt[i] = 1
} else {
cnt[i] = LOG * cnt[i-1]
}
dwn[i] = 1
lst[i] = nil
}
i := 0
for p := sym.Text; p != nil && p.Link != nil; p = p.Link {
i--
if i < 0 {
i = LOG - 1
}
p.Forwd = nil
dwn[i]--
if dwn[i] <= 0 {
dwn[i] = cnt[i]
if lst[i] != nil {
lst[i].Forwd = p
}
lst[i] = p
}
}
}
func Copyp(ctxt *Link, q *Prog) *Prog {
p := ctxt.NewProg()
*p = *q
return p
}
func Appendp(ctxt *Link, q *Prog) *Prog {
p := ctxt.NewProg()
p.Link = q.Link
q.Link = p
p.Lineno = q.Lineno
p.Mode = q.Mode
return p
}
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