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// Copyright 2009 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 obj
import (
"fmt"
"math"
"os"
"strings"
)
// go-specific code shared across loaders (5l, 6l, 8l).
var Framepointer_enabled int
var Fieldtrack_enabled int
// Toolchain experiments.
// These are controlled by the GOEXPERIMENT environment
// variable recorded when the toolchain is built.
// This list is also known to cmd/gc.
var exper = []struct {
name string
val *int
}{
struct {
name string
val *int
}{"fieldtrack", &Fieldtrack_enabled},
struct {
name string
val *int
}{"framepointer", &Framepointer_enabled},
}
func addexp(s string) {
var i int
for i = 0; i < len(exper); i++ {
if exper[i].name == s {
if exper[i].val != nil {
*exper[i].val = 1
}
return
}
}
fmt.Printf("unknown experiment %s\n", s)
os.Exit(2)
}
func linksetexp() {
for _, f := range strings.Split(goexperiment, ",") {
if f != "" {
addexp(f)
}
}
}
// replace all "". with pkg.
func Expandpkg(t0 string, pkg string) string {
return strings.Replace(t0, `"".`, pkg+".", -1)
}
func double2ieee(ieee *uint64, f float64) {
*ieee = math.Float64bits(f)
}
func Nopout(p *Prog) {
p.As = ANOP
p.Scond = 0
p.From = Addr{}
p.From3 = Addr{}
p.Reg = 0
p.To = Addr{}
}
func Nocache(p *Prog) {
p.Optab = 0
p.From.Class = 0
p.From3.Class = 0
p.To.Class = 0
}
/*
* bv.c
*/
/*
* closure.c
*/
/*
* const.c
*/
/*
* cplx.c
*/
/*
* dcl.c
*/
/*
* esc.c
*/
/*
* export.c
*/
/*
* fmt.c
*/
/*
* gen.c
*/
/*
* init.c
*/
/*
* inl.c
*/
/*
* lex.c
*/
func Expstring() string {
buf := "X"
for i := range exper {
if *exper[i].val != 0 {
buf += "," + exper[i].name
}
}
if buf == "X" {
buf += ",none"
}
return "X:" + buf[2:]
}
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