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build: clFiles support cflags, reuse llvm.Env; cpp/inih: _wrap/reader.cpp

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This commit is contained in:
xushiwei
2024-07-13 18:55:09 +08:00
parent af54a22d16
commit a3ea4798bc
4 changed files with 40 additions and 19 deletions
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42
internal/build/build.go
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@@ -174,7 +174,7 @@ func Do(args []string, conf *Config) {
patches := make(cl.Patches, len(altPkgPaths))
altSSAPkgs(progSSA, patches, altPkgs[1:], verbose)
ctx := &context{progSSA, prog, dedup, patches, make(map[string]none), initial, mode}
ctx := &context{llvm.New(""), progSSA, prog, dedup, patches, make(map[string]none), initial, mode}
pkgs := buildAllPkgs(ctx, initial, verbose)
var llFiles []string
@@ -189,7 +189,7 @@ func Do(args []string, conf *Config) {
nErr := 0
for _, pkg := range initial {
if pkg.Name == "main" {
nErr += linkMainPkg(pkg, pkgs, llFiles, conf, mode, verbose)
nErr += linkMainPkg(ctx, pkg, pkgs, llFiles, conf, mode, verbose)
}
}
if nErr > 0 {
@@ -221,6 +221,7 @@ const (
)
type context struct {
env *llvm.Env
progSSA *ssa.Program
prog llssa.Program
dedup packages.Deduper
@@ -256,13 +257,14 @@ func buildAllPkgs(ctx *context, initial []*packages.Package, verbose bool) (pkgs
case cl.PkgLinkIR, cl.PkgLinkExtern, cl.PkgPyModule:
if len(pkg.GoFiles) > 0 {
buildPkg(ctx, aPkg, verbose)
pkg.ExportFile = " " + concatPkgLinkFiles(pkg, verbose) + " " + pkg.ExportFile
pkg.ExportFile = " " + concatPkgLinkFiles(ctx, pkg, verbose) + " " + pkg.ExportFile
} else {
// panic("todo")
// TODO(xsw): support packages out of llgo
pkg.ExportFile = ""
}
if kind == cl.PkgLinkExtern { // need to be linked with external library
if kind == cl.PkgLinkExtern {
// need to be linked with external library
// format: ';' separated alternative link methods. e.g.
// link: $LLGO_LIB_PYTHON; $(pkg-config --libs python3-embed); -lpython3
expd := ""
@@ -305,7 +307,7 @@ func buildAllPkgs(ctx *context, initial []*packages.Package, verbose bool) (pkgs
return
}
func linkMainPkg(pkg *packages.Package, pkgs []*aPackage, llFiles []string, conf *Config, mode Mode, verbose bool) (nErr int) {
func linkMainPkg(ctx *context, pkg *packages.Package, pkgs []*aPackage, llFiles []string, conf *Config, mode Mode, verbose bool) (nErr int) {
pkgPath := pkg.PkgPath
name := path.Base(pkgPath)
app := conf.OutFile
@@ -390,7 +392,7 @@ func linkMainPkg(pkg *packages.Package, pkgs []*aPackage, llFiles []string, conf
if verbose {
fmt.Fprintln(os.Stderr, "clang", args)
}
err := llvm.New("").Clang().Exec(args...)
err := ctx.env.Clang().Exec(args...)
check(err)
switch mode {
@@ -589,6 +591,7 @@ func appendLinkFiles(args []string, file string) []string {
if isSingleLinkFile(file) {
return append(args, file)
}
// TODO(xsw): consider filename with spaces
return append(args, strings.Split(file[1:], " ")...)
}
@@ -596,11 +599,11 @@ func isSingleLinkFile(ret string) bool {
return len(ret) > 0 && ret[0] != ' '
}
func concatPkgLinkFiles(pkg *packages.Package, verbose bool) string {
func concatPkgLinkFiles(ctx *context, pkg *packages.Package, verbose bool) string {
var b strings.Builder
var ret string
var n int
llgoPkgLinkFiles(pkg, func(linkFile string) {
llgoPkgLinkFiles(ctx, pkg, func(linkFile string) {
if n == 0 {
ret = linkFile
} else {
@@ -618,32 +621,41 @@ func concatPkgLinkFiles(pkg *packages.Package, verbose bool) string {
}
// const LLGoFiles = "file1; file2; ..."
func llgoPkgLinkFiles(pkg *packages.Package, procFile func(linkFile string), verbose bool) {
func llgoPkgLinkFiles(ctx *context, pkg *packages.Package, procFile func(linkFile string), verbose bool) {
if o := pkg.Types.Scope().Lookup("LLGoFiles"); o != nil {
val := o.(*types.Const).Val()
if val.Kind() == constant.String {
clFiles(constant.StringVal(val), pkg, procFile, verbose)
clFiles(ctx, constant.StringVal(val), pkg, procFile, verbose)
}
}
}
// files = "file1; file2; ..."
func clFiles(files string, pkg *packages.Package, procFile func(linkFile string), verbose bool) {
// files = "$(pkg-config --cflags xxx): file1; file2; ..."
func clFiles(ctx *context, files string, pkg *packages.Package, procFile func(linkFile string), verbose bool) {
dir := filepath.Dir(pkg.GoFiles[0])
expFile := pkg.ExportFile
args := make([]string, 0, 16)
if strings.HasPrefix(files, "$") { // has cflags
if pos := strings.IndexByte(files, ':'); pos > 0 {
cflags := env.ExpandEnv(files[:pos])
files = files[pos+1:]
args = append(args, strings.Split(cflags, " ")...)
}
}
for _, file := range strings.Split(files, ";") {
cFile := filepath.Join(dir, strings.TrimSpace(file))
clFile(cFile, expFile, procFile, verbose)
clFile(ctx, args, cFile, expFile, procFile, verbose)
}
}
func clFile(cFile, expFile string, procFile func(linkFile string), verbose bool) {
func clFile(ctx *context, args []string, cFile, expFile string, procFile func(linkFile string), verbose bool) {
llFile := expFile + filepath.Base(cFile) + ".ll"
args := []string{"-emit-llvm", "-S", "-o", llFile, "-c", cFile}
args = append(args, "-emit-llvm", "-S", "-o", llFile, "-c", cFile)
if verbose {
fmt.Fprintln(os.Stderr, "clang", args)
}
err := llvm.New("").Clang().Exec(args...)
err := ctx.env.Clang().Exec(args...)
check(err)
procFile(llFile)
}