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// Copyright 2014 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.
//go:build ignore
// +build ignore
package main
import (
"bytes"
"fmt"
"log"
"os"
"strconv"
"strings"
)
var goarches []string
func main() {
data, err := os.ReadFile("../../go/build/syslist.go")
if err != nil {
log.Fatal(err)
}
const goarchPrefix = `const goarchList = `
for _, line := range strings.Split(string(data), "\n") {
if strings.HasPrefix(line, goarchPrefix) {
text, err := strconv.Unquote(strings.TrimPrefix(line, goarchPrefix))
if err != nil {
log.Fatalf("parsing goarchList: %v", err)
}
goarches = strings.Fields(text)
}
}
for _, target := range goarches {
if target == "amd64p32" {
continue
}
var buf bytes.Buffer
fmt.Fprintf(&buf, "// Code generated by gengoarch.go using 'go generate'. DO NOT EDIT.\n\n")
fmt.Fprintf(&buf, "//go:build %s\n", target)
fmt.Fprintf(&buf, "// +build %s\n\n", target) // must explicitly include target for bootstrapping purposes
fmt.Fprintf(&buf, "package goarch\n\n")
fmt.Fprintf(&buf, "const GOARCH = `%s`\n\n", target)
for _, goarch := range goarches {
value := 0
if goarch == target {
value = 1
}
fmt.Fprintf(&buf, "const Is%s = %d\n", strings.Title(goarch), value)
}
err := os.WriteFile("zgoarch_"+target+".go", buf.Bytes(), 0666)
if err != nil {
log.Fatal(err)
}
}
}
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