| // 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 gooses, goarches []string |
| |
| func main() { |
| data, err := os.ReadFile("../../../go/build/syslist.go") |
| if err != nil { |
| log.Fatal(err) |
| } |
| const ( |
| goosPrefix = `const goosList = ` |
| goarchPrefix = `const goarchList = ` |
| ) |
| for _, line := range strings.Split(string(data), "\n") { |
| if strings.HasPrefix(line, goosPrefix) { |
| text, err := strconv.Unquote(strings.TrimPrefix(line, goosPrefix)) |
| if err != nil { |
| log.Fatalf("parsing goosList: %v", err) |
| } |
| gooses = strings.Fields(text) |
| } |
| 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 gooses { |
| if target == "nacl" { |
| continue |
| } |
| var tags []string |
| if target == "linux" { |
| tags = append(tags, "!android") // must explicitly exclude android for linux |
| } |
| if target == "solaris" { |
| tags = append(tags, "!illumos") // must explicitly exclude illumos for solaris |
| } |
| if target == "darwin" { |
| tags = append(tags, "!ios") // must explicitly exclude ios for darwin |
| } |
| tags = append(tags, target) // must explicitly include target for bootstrapping purposes |
| var buf bytes.Buffer |
| fmt.Fprintf(&buf, "// Code generated by gengoos.go using 'go generate'. DO NOT EDIT.\n\n") |
| fmt.Fprintf(&buf, "//go:build %s\n", strings.Join(tags, " && ")) |
| fmt.Fprintf(&buf, "// +build %s\n\n", strings.Join(tags, ",")) |
| fmt.Fprintf(&buf, "package sys\n\n") |
| fmt.Fprintf(&buf, "const GOOS = `%s`\n\n", target) |
| for _, goos := range gooses { |
| value := 0 |
| if goos == target { |
| value = 1 |
| } |
| fmt.Fprintf(&buf, "const Goos%s = %d\n", strings.Title(goos), value) |
| } |
| err := os.WriteFile("zgoos_"+target+".go", buf.Bytes(), 0666) |
| if err != nil { |
| log.Fatal(err) |
| } |
| } |
| |
| for _, target := range goarches { |
| if target == "amd64p32" { |
| continue |
| } |
| var buf bytes.Buffer |
| fmt.Fprintf(&buf, "// Code generated by gengoos.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 sys\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 Goarch%s = %d\n", strings.Title(goarch), value) |
| } |
| err := os.WriteFile("zgoarch_"+target+".go", buf.Bytes(), 0666) |
| if err != nil { |
| log.Fatal(err) |
| } |
| } |
| } |