666 lines
16 KiB
Go
666 lines
16 KiB
Go
/*
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* Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package build
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import (
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"archive/zip"
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"fmt"
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"go/token"
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"go/types"
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"io"
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"os"
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"os/exec"
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"path"
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"path/filepath"
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"runtime"
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"strings"
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"golang.org/x/tools/go/ssa"
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"github.com/goplus/llgo/cl"
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"github.com/goplus/llgo/internal/packages"
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"github.com/goplus/llgo/internal/typepatch"
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"github.com/goplus/llgo/xtool/clang"
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"github.com/goplus/llgo/xtool/env"
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llssa "github.com/goplus/llgo/ssa"
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clangCheck "github.com/goplus/llgo/xtool/clang/check"
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)
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type Mode int
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const (
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ModeBuild Mode = iota
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ModeInstall
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ModeRun
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)
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func needLLFile(mode Mode) bool {
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return mode != ModeBuild
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}
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type Config struct {
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BinPath string
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AppExt string // ".exe" on Windows, empty on Unix
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OutFile string // only valid for ModeBuild when len(pkgs) == 1
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RunArgs []string // only valid for ModeRun
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Mode Mode
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}
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func NewDefaultConf(mode Mode) *Config {
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bin := os.Getenv("GOBIN")
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if bin == "" {
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bin = filepath.Join(runtime.GOROOT(), "bin")
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}
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conf := &Config{
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BinPath: bin,
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Mode: mode,
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AppExt: DefaultAppExt(),
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}
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return conf
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}
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func DefaultAppExt() string {
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if runtime.GOOS == "windows" {
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return ".exe"
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}
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return ""
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}
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// -----------------------------------------------------------------------------
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const (
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loadFiles = packages.NeedName | packages.NeedFiles | packages.NeedCompiledGoFiles
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loadImports = loadFiles | packages.NeedImports
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loadTypes = loadImports | packages.NeedTypes | packages.NeedTypesSizes
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loadSyntax = loadTypes | packages.NeedSyntax | packages.NeedTypesInfo
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)
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func Do(args []string, conf *Config) {
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flags, patterns, verbose := ParseArgs(args, buildFlags)
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cfg := &packages.Config{
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Mode: loadSyntax | packages.NeedDeps | packages.NeedModule | packages.NeedExportFile,
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BuildFlags: flags,
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Fset: token.NewFileSet(),
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}
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llssa.Initialize(llssa.InitAll)
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if verbose {
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llssa.SetDebug(llssa.DbgFlagAll)
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cl.SetDebug(cl.DbgFlagAll)
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}
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prog := llssa.NewProgram(nil)
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sizes := prog.TypeSizes
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// dedup := packages.NewDeduper()
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dedup := (*packages.Deduper)(nil)
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if patterns == nil {
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patterns = []string{"."}
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}
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initial, err := packages.LoadEx(dedup, sizes, cfg, patterns...)
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check(err)
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mode := conf.Mode
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if len(initial) == 1 && len(initial[0].CompiledGoFiles) > 0 {
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if mode == ModeBuild {
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mode = ModeInstall
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}
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} else if mode == ModeRun {
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if len(initial) > 1 {
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fmt.Fprintln(os.Stderr, "cannot run multiple packages")
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} else {
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fmt.Fprintln(os.Stderr, "no Go files in matched packages")
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}
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return
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}
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var needRt bool
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var rt []*packages.Package
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load := func() []*packages.Package {
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if rt == nil {
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var err error
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rt, err = packages.LoadEx(dedup, sizes, cfg, llssa.PkgRuntime, llssa.PkgPython)
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check(err)
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}
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return rt
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}
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prog.SetRuntime(func() *types.Package {
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needRt = true
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rt := load()
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return rt[0].Types
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})
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prog.SetPython(func() *types.Package {
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rt := load()
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return rt[1].Types
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})
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imp := func(pkgPath string) *packages.Package {
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if ret, e := packages.LoadEx(dedup, sizes, cfg, pkgPath); e == nil {
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return ret[0]
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}
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return nil
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}
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pkgs := buildAllPkgs(prog, imp, initial, nil, mode, verbose)
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var runtimeFiles []string
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if needRt {
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skip := make(map[string]bool)
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for _, v := range pkgs {
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skip[v.PkgPath] = true
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}
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dpkg := buildAllPkgs(prog, imp, rt[:1], skip, mode, verbose)
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for _, pkg := range dpkg {
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if !strings.HasSuffix(pkg.ExportFile, ".ll") {
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continue
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}
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runtimeFiles = append(runtimeFiles, pkg.ExportFile)
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}
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}
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if mode != ModeBuild {
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nErr := 0
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for _, pkg := range initial {
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if pkg.Name == "main" {
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nErr += linkMainPkg(pkg, pkgs, runtimeFiles, conf, mode, verbose)
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}
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}
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if nErr > 0 {
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os.Exit(nErr)
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}
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}
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}
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func setNeedRuntimeOrPyInit(pkg *packages.Package, needRuntime, needPyInit bool) {
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v := []byte{'0', '0'}
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if needRuntime {
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v[0] = '1'
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}
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if needPyInit {
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v[1] = '1'
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}
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pkg.ID = string(v) // just use pkg.ID to mark it needs runtime
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}
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func isNeedRuntimeOrPyInit(pkg *packages.Package) (needRuntime, needPyInit bool) {
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if len(pkg.ID) == 2 {
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return pkg.ID[0] == '1', pkg.ID[1] == '1'
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}
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return
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}
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const (
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ssaBuildMode = ssa.SanityCheckFunctions
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)
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func buildAllPkgs(prog llssa.Program, imp importer, initial []*packages.Package, skip map[string]bool, mode Mode, verbose bool) (pkgs []*aPackage) {
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// Create SSA-form program representation.
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ssaProg, pkgs, errPkgs := allPkgs(imp, initial, ssaBuildMode)
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ssaProg.Build()
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for _, errPkg := range errPkgs {
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for _, err := range errPkg.Errors {
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fmt.Fprintln(os.Stderr, err)
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}
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fmt.Fprintln(os.Stderr, "cannot build SSA for package", errPkg)
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}
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for _, aPkg := range pkgs {
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pkg := aPkg.Package
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if skip[pkg.PkgPath] {
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pkg.ExportFile = ""
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continue
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}
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switch kind, param := cl.PkgKindOf(pkg.Types); kind {
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case cl.PkgDeclOnly:
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// skip packages that only contain declarations
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// and set no export file
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pkg.ExportFile = ""
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case cl.PkgLinkIR, cl.PkgLinkExtern, cl.PkgPyModule:
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pkgPath := pkg.PkgPath
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if isPkgInLLGo(pkgPath) {
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pkg.ExportFile = concatPkgLinkFiles(pkgPath)
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} else {
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// panic("todo")
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// TODO(xsw): support packages out of llgo
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pkg.ExportFile = ""
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}
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if kind == cl.PkgLinkExtern { // need to be linked with external library
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// format: ';' separated alternative link methods. e.g.
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// link: $LLGO_LIB_PYTHON; $(pkg-config --libs python3-embed); -lpython3
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expd := ""
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altParts := strings.Split(param, ";")
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for _, param := range altParts {
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expd = strings.TrimSpace(env.ExpandEnv(strings.TrimSpace(param)))
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if len(expd) > 0 {
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break
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}
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}
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if expd == "" {
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panic(fmt.Sprintf("'%s' cannot locate the external library", param))
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}
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command := ""
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if expd[0] == '-' {
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command += " " + expd
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} else {
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linkFile := expd
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dir, lib := filepath.Split(linkFile)
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command = " -l " + lib
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if dir != "" {
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command += " -L " + dir[:len(dir)-1]
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}
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}
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if err := clangCheck.CheckLinkArgs(command); err != nil {
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panic(fmt.Sprintf("test link args '%s' failed\n\texpanded to: %s\n\tresolved to: %v\n\terror: %v", param, expd, command, err))
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}
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if isSingleLinkFile(pkg.ExportFile) {
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pkg.ExportFile = command + " " + pkg.ExportFile
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} else {
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pkg.ExportFile = command + pkg.ExportFile
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}
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}
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default:
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buildPkg(prog, aPkg, mode, verbose)
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setNeedRuntimeOrPyInit(pkg, prog.NeedRuntime, prog.NeedPyInit)
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}
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}
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return
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}
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func linkMainPkg(pkg *packages.Package, pkgs []*aPackage, runtimeFiles []string, conf *Config, mode Mode, verbose bool) (nErr int) {
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pkgPath := pkg.PkgPath
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name := path.Base(pkgPath)
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app := conf.OutFile
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if app == "" {
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app = filepath.Join(conf.BinPath, name+conf.AppExt)
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}
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const N = 3
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args := make([]string, N, len(pkg.Imports)+len(runtimeFiles)+(N+1))
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args[0] = "-o"
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args[1] = app
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args[2] = "-Wno-override-module"
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needRuntime := false
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needPyInit := false
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packages.Visit([]*packages.Package{pkg}, nil, func(p *packages.Package) {
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if p.ExportFile != "" { // skip packages that only contain declarations
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args = appendLinkFiles(args, p.ExportFile)
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need1, need2 := isNeedRuntimeOrPyInit(p)
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if !needRuntime {
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needRuntime = need1
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}
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if !needPyInit {
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needPyInit = need2
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}
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}
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})
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var aPkg *aPackage
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for _, v := range pkgs {
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if v.Package == pkg { // found this package
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aPkg = v
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break
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}
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}
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dirty := false
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if needRuntime && runtimeFiles != nil {
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for _, file := range runtimeFiles {
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args = appendLinkFiles(args, file)
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}
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} else {
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dirty = true
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fn := aPkg.LPkg.FuncOf(cl.RuntimeInit)
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fn.MakeBody(1).Return()
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}
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if needPyInit {
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dirty = aPkg.LPkg.PyInit()
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}
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if dirty && needLLFile(mode) {
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lpkg := aPkg.LPkg
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os.WriteFile(pkg.ExportFile, []byte(lpkg.String()), 0644)
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}
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if verbose || mode != ModeRun {
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fmt.Fprintln(os.Stderr, "#", pkgPath)
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}
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defer func() {
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if e := recover(); e != nil {
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nErr = 1
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}
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}()
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// TODO(xsw): show work
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if verbose {
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fmt.Fprintln(os.Stderr, "clang", args)
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}
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err := clang.New("").Exec(args...)
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check(err)
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if mode == ModeRun {
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cmd := exec.Command(app, conf.RunArgs...)
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cmd.Stdin = os.Stdin
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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cmd.Run()
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if s := cmd.ProcessState; s != nil {
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os.Exit(s.ExitCode())
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}
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}
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return
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}
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func buildPkg(prog llssa.Program, aPkg *aPackage, mode Mode, verbose bool) {
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pkg := aPkg.Package
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pkgPath := pkg.PkgPath
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if verbose {
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fmt.Fprintln(os.Stderr, pkgPath)
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}
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if canSkipToBuild(pkgPath) {
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pkg.ExportFile = ""
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return
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}
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altSSA := aPkg.AltSSA
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syntax := pkg.Syntax
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if altPkg := aPkg.AltPkg; altPkg != nil {
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syntax = append(syntax, altPkg.Syntax...)
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if altSSA != nil {
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altSSA.Pkg = typepatch.Pkg(pkg.Types, altPkg.Types)
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}
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}
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ret, err := cl.NewPackageEx(prog, aPkg.SSA, altSSA, syntax)
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check(err)
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if needLLFile(mode) {
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pkg.ExportFile += ".ll"
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os.WriteFile(pkg.ExportFile, []byte(ret.String()), 0644)
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}
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aPkg.LPkg = ret
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}
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func canSkipToBuild(pkgPath string) bool {
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switch pkgPath {
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case "unsafe", "runtime", "errors", "sync", "sync/atomic":
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return true
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default:
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return strings.HasPrefix(pkgPath, "internal/") ||
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strings.HasPrefix(pkgPath, "runtime/internal/")
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}
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}
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type aPackage struct {
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*packages.Package
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SSA *ssa.Package
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AltPkg *packages.Package
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AltSSA *ssa.Package
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LPkg llssa.Package
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}
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type none struct{}
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var hasAltPkg = map[string]none{
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"math": {},
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}
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type importer = func(pkgPath string) *packages.Package
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func allPkgs(imp importer, initial []*packages.Package, mode ssa.BuilderMode) (prog *ssa.Program, all []*aPackage, errs []*packages.Package) {
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var fset *token.FileSet
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if len(initial) > 0 {
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fset = initial[0].Fset
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}
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prog = ssa.NewProgram(fset, mode)
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packages.Visit(initial, nil, func(p *packages.Package) {
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if p.Types != nil && !p.IllTyped {
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var altPkg *packages.Package
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var altSSA *ssa.Package
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var ssaPkg = prog.CreatePackage(p.Types, p.Syntax, p.TypesInfo, true)
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if imp != nil {
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if _, ok := hasAltPkg[p.PkgPath]; ok {
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altPkgPath := "github.com/goplus/llgo/internal/lib/" + p.PkgPath
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if altPkg = imp(altPkgPath); altPkg != nil { // TODO(xsw): how to minimize import times
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altSSA = createAltSSAPkg(prog, altPkg)
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}
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}
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}
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all = append(all, &aPackage{p, ssaPkg, altPkg, altSSA, nil})
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} else {
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errs = append(errs, p)
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}
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})
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return
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}
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func createAltSSAPkg(prog *ssa.Program, alt *packages.Package) *ssa.Package {
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altPath := alt.Types.Path()
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altSSA := prog.ImportedPackage(altPath)
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if altSSA == nil {
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packages.Visit([]*packages.Package{alt}, nil, func(p *packages.Package) {
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pkgTypes := p.Types
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if pkgTypes != nil && !p.IllTyped {
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if prog.ImportedPackage(pkgTypes.Path()) == nil {
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prog.CreatePackage(pkgTypes, p.Syntax, p.TypesInfo, true)
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}
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}
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})
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altSSA = prog.ImportedPackage(altPath)
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}
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return altSSA
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}
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var (
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// TODO(xsw): complete build flags
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buildFlags = map[string]bool{
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"-C": true, // -C dir: Change to dir before running the command
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"-a": false, // -a: force rebuilding of packages that are already up-to-date
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"-n": false, // -n: print the commands but do not run them
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"-p": true, // -p n: the number of programs to run in parallel
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"-race": false, // -race: enable data race detection
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"-cover": false, // -cover: enable coverage analysis
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"-covermode": true, // -covermode mode: set the mode for coverage analysis
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"-v": false, // -v: print the names of packages as they are compiled
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"-work": false, // -work: print the name of the temporary work directory and do not delete it when exiting
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"-x": false, // -x: print the commands
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"-tags": true, // -tags 'tag,list': a space-separated list of build tags to consider satisfied during the build
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"-pkgdir": true, // -pkgdir dir: install and load all packages from dir instead of the usual locations
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"-ldflags": true, // --ldflags 'flag list': arguments to pass on each go tool link invocation
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}
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)
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func ParseArgs(args []string, swflags map[string]bool) (flags, patterns []string, verbose bool) {
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n := len(args)
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for i := 0; i < n; i++ {
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arg := args[i]
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if strings.HasPrefix(arg, "-") {
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checkFlag(arg, &i, &verbose, swflags)
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} else {
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flags, patterns = args[:i], args[i:]
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return
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}
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}
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flags = args
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return
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}
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func SkipFlagArgs(args []string) int {
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n := len(args)
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for i := 0; i < n; i++ {
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arg := args[i]
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if strings.HasPrefix(arg, "-") {
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checkFlag(arg, &i, nil, buildFlags)
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} else {
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return i
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}
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}
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return -1
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}
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func checkFlag(arg string, i *int, verbose *bool, swflags map[string]bool) {
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if pos := strings.IndexByte(arg, '='); pos > 0 {
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if verbose != nil && arg == "-v=true" {
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*verbose = true
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}
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} else if hasarg, ok := swflags[arg]; ok {
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if hasarg {
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*i++
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} else if verbose != nil && arg == "-v" {
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*verbose = true
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}
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} else {
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panic("unknown flag: " + arg)
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}
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}
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var (
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rootDir string
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)
|
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|
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func llgoRoot() string {
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if rootDir == "" {
|
|
root := os.Getenv("LLGOROOT")
|
|
if root == "" {
|
|
panic("todo: LLGOROOT not set")
|
|
}
|
|
rootDir, _ = filepath.Abs(root)
|
|
}
|
|
return rootDir
|
|
}
|
|
|
|
func appendLinkFiles(args []string, file string) []string {
|
|
if isSingleLinkFile(file) {
|
|
return append(args, file)
|
|
}
|
|
return append(args, strings.Split(file[1:], " ")...)
|
|
}
|
|
|
|
func isSingleLinkFile(ret string) bool {
|
|
return len(ret) > 0 && ret[0] != ' '
|
|
}
|
|
|
|
func concatPkgLinkFiles(pkgPath string) string {
|
|
var b strings.Builder
|
|
var ret string
|
|
var n int
|
|
llgoPkgLinkFiles(pkgPath, "", func(linkFile string) {
|
|
if n == 0 {
|
|
ret = linkFile
|
|
} else {
|
|
b.WriteByte(' ')
|
|
b.WriteString(linkFile)
|
|
}
|
|
n++
|
|
})
|
|
if n > 1 {
|
|
b.WriteByte(' ')
|
|
b.WriteString(ret)
|
|
return b.String()
|
|
}
|
|
return ret
|
|
}
|
|
|
|
func llgoPkgLinkFiles(pkgPath string, llFile string, procFile func(linkFile string)) {
|
|
dir := llgoRoot() + pkgPath[len(llgoModPath):] + "/"
|
|
if llFile == "" {
|
|
llFile = "llgo_autogen.ll"
|
|
}
|
|
llPath := dir + llFile
|
|
llaPath := llPath + "a"
|
|
zipf, err := zip.OpenReader(llaPath)
|
|
if err != nil {
|
|
procFile(llPath)
|
|
return
|
|
}
|
|
defer zipf.Close()
|
|
|
|
for _, f := range zipf.File {
|
|
procFile(dir + f.Name)
|
|
}
|
|
if _, err := os.Stat(llPath); os.IsNotExist(err) {
|
|
for _, f := range zipf.File {
|
|
decodeFile(dir+f.Name, f)
|
|
}
|
|
}
|
|
}
|
|
|
|
const (
|
|
llgoModPath = "github.com/goplus/llgo"
|
|
)
|
|
|
|
func isPkgInLLGo(pkgPath string) bool {
|
|
return isPkgInMod(pkgPath, llgoModPath)
|
|
}
|
|
|
|
func isPkgInMod(pkgPath, modPath string) bool {
|
|
if strings.HasPrefix(pkgPath, modPath) {
|
|
suffix := pkgPath[len(modPath):]
|
|
return suffix == "" || suffix[0] == '/'
|
|
}
|
|
return false
|
|
}
|
|
|
|
/*
|
|
func llgoPkgLinkFile(pkgPath string) string {
|
|
// if kind == cl.PkgLinkBitCode {
|
|
// return filepath.Join(llgoRoot()+pkgPath[len(llgoModPath):], "llgo_autogen.bc")
|
|
// }
|
|
llFile := filepath.Join(llgoRoot()+pkgPath[len(llgoModPath):], "llgo_autogen.ll")
|
|
if _, err := os.Stat(llFile); os.IsNotExist(err) {
|
|
decodeLinkFile(llFile)
|
|
}
|
|
return llFile
|
|
}
|
|
|
|
// *.ll => *.lla
|
|
func decodeLinkFile(llFile string) {
|
|
zipFile := llFile + "a"
|
|
zipf, err := zip.OpenReader(zipFile)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer zipf.Close()
|
|
f, err := zipf.Open("llgo_autogen.ll")
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer f.Close()
|
|
data, err := io.ReadAll(f)
|
|
if err == nil {
|
|
os.WriteFile(llFile, data, 0644)
|
|
}
|
|
}
|
|
*/
|
|
|
|
func decodeFile(outFile string, zipf *zip.File) (err error) {
|
|
f, err := zipf.Open()
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer f.Close()
|
|
data, err := io.ReadAll(f)
|
|
if err == nil {
|
|
err = os.WriteFile(outFile, data, 0644)
|
|
}
|
|
return
|
|
}
|
|
|
|
func check(err error) {
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|