| // Copyright 2012 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 main |
| |
| import ( |
| "fmt" |
| "strings" |
| ) |
| |
| /* |
| * Helpers for building runtime. |
| */ |
| |
| // mkzversion writes zversion.go: |
| // |
| // package sys |
| // |
| // (Nothing right now!) |
| func mkzversion(dir, file string) { |
| var buf strings.Builder |
| writeHeader(&buf) |
| fmt.Fprintf(&buf, "package sys\n") |
| writefile(buf.String(), file, writeSkipSame) |
| } |
| |
| // mkbuildcfg writes internal/buildcfg/zbootstrap.go: |
| // |
| // package buildcfg |
| // |
| // const defaultGOROOT = <goroot> |
| // const defaultGO386 = <go386> |
| // ... |
| // const defaultGOOS = runtime.GOOS |
| // const defaultGOARCH = runtime.GOARCH |
| // |
| // The use of runtime.GOOS and runtime.GOARCH makes sure that |
| // a cross-compiled compiler expects to compile for its own target |
| // system. That is, if on a Mac you do: |
| // |
| // GOOS=linux GOARCH=ppc64 go build cmd/compile |
| // |
| // the resulting compiler will default to generating linux/ppc64 object files. |
| // This is more useful than having it default to generating objects for the |
| // original target (in this example, a Mac). |
| func mkbuildcfg(file string) { |
| var buf strings.Builder |
| writeHeader(&buf) |
| fmt.Fprintf(&buf, "package buildcfg\n") |
| fmt.Fprintln(&buf) |
| fmt.Fprintf(&buf, "import \"runtime\"\n") |
| fmt.Fprintln(&buf) |
| fmt.Fprintf(&buf, "const defaultGO386 = `%s`\n", go386) |
| fmt.Fprintf(&buf, "const defaultGOAMD64 = `%s`\n", goamd64) |
| fmt.Fprintf(&buf, "const defaultGOARM = `%s`\n", goarm) |
| fmt.Fprintf(&buf, "const defaultGOARM64 = `%s`\n", goarm64) |
| fmt.Fprintf(&buf, "const defaultGOMIPS = `%s`\n", gomips) |
| fmt.Fprintf(&buf, "const defaultGOMIPS64 = `%s`\n", gomips64) |
| fmt.Fprintf(&buf, "const defaultGOPPC64 = `%s`\n", goppc64) |
| fmt.Fprintf(&buf, "const defaultGORISCV64 = `%s`\n", goriscv64) |
| fmt.Fprintf(&buf, "const defaultGOEXPERIMENT = `%s`\n", goexperiment) |
| fmt.Fprintf(&buf, "const defaultGO_EXTLINK_ENABLED = `%s`\n", goextlinkenabled) |
| fmt.Fprintf(&buf, "const defaultGO_LDSO = `%s`\n", defaultldso) |
| fmt.Fprintf(&buf, "const version = `%s`\n", findgoversion()) |
| fmt.Fprintf(&buf, "const defaultGOOS = runtime.GOOS\n") |
| fmt.Fprintf(&buf, "const defaultGOARCH = runtime.GOARCH\n") |
| |
| writefile(buf.String(), file, writeSkipSame) |
| } |
| |
| // mkobjabi writes cmd/internal/objabi/zbootstrap.go: |
| // |
| // package objabi |
| // |
| // (Nothing right now!) |
| func mkobjabi(file string) { |
| var buf strings.Builder |
| writeHeader(&buf) |
| fmt.Fprintf(&buf, "package objabi\n") |
| |
| writefile(buf.String(), file, writeSkipSame) |
| } |
