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#1165

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This commit is contained in:
xushiwei
2025-06-23 22:01:42 +08:00
parent b7b6e3bc93
commit 915cdf2c23
6 changed files with 89 additions and 25 deletions
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13
cl/_testdata/cpkg/in.go Normal file
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@@ -0,0 +1,13 @@
package C
func Xadd(a, b int) int {
return add(a, b)
}
func Double(x float64) float64 {
return 2 * x
}
func add(a, b int) int {
return a + b
}

35
cl/_testdata/cpkg/out.ll Normal file
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@@ -0,0 +1,35 @@
; ModuleID = 'github.com/goplus/llgo/cl/_testdata/cpkg'
source_filename = "github.com/goplus/llgo/cl/_testdata/cpkg"
@"github.com/goplus/llgo/cl/_testdata/cpkg.init$guard" = global i1 false, align 1
define double @Double(double %0) {
_llgo_0:
%1 = fmul double 2.000000e+00, %0
ret double %1
}
define i64 @add(i64 %0, i64 %1) {
_llgo_0:
%2 = call i64 @"github.com/goplus/llgo/cl/_testdata/cpkg.add"(i64 %0, i64 %1)
ret i64 %2
}
define i64 @"github.com/goplus/llgo/cl/_testdata/cpkg.add"(i64 %0, i64 %1) {
_llgo_0:
%2 = add i64 %0, %1
ret i64 %2
}
define void @"github.com/goplus/llgo/cl/_testdata/cpkg.init"() {
_llgo_0:
%0 = load i1, ptr @"github.com/goplus/llgo/cl/_testdata/cpkg.init$guard", align 1
br i1 %0, label %_llgo_2, label %_llgo_1
_llgo_1: ; preds = %_llgo_0
store i1 true, ptr @"github.com/goplus/llgo/cl/_testdata/cpkg.init$guard", align 1
br label %_llgo_2
_llgo_2: ; preds = %_llgo_1, %_llgo_0
ret void
}

2
cl/compile.go
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@@ -1005,7 +1005,7 @@ func NewPackageEx(prog llssa.Program, patches Patches, pkg *ssa.Package, files [
cgoSymbols: make([]string, 0, 128),
}
ctx.initPyModule()
ctx.initFiles(pkgPath, files)
ctx.initFiles(pkgPath, files, pkgName == "C")
ctx.prog.SetPatch(ctx.patchType)
ret.SetPatch(ctx.patchType)
ret.SetResolveLinkname(ctx.resolveLinkname)

46
cl/import.go
View File

@@ -174,13 +174,18 @@ start:
syms.initLinknames(p)
}
func (p *context) initFiles(pkgPath string, files []*ast.File) {
func (p *context) initFiles(pkgPath string, files []*ast.File, cPkg bool) {
for _, file := range files {
for _, decl := range file.Decls {
switch decl := decl.(type) {
case *ast.FuncDecl:
fullName, inPkgName := astFuncName(pkgPath, decl)
p.initLinknameByDoc(decl.Doc, fullName, inPkgName, false)
if !p.initLinknameByDoc(decl.Doc, fullName, inPkgName, false) && cPkg {
// package C (https://github.com/goplus/llgo/issues/1165)
if decl.Recv == nil && token.IsExported(inPkgName) {
p.prog.SetLinkname(fullName, strings.TrimPrefix(inPkgName, "X"))
}
}
case *ast.GenDecl:
switch decl.Tok {
case token.VAR:
@@ -266,51 +271,58 @@ func (p *context) collectSkip(line string, prefix int) {
}
}
func (p *context) initLinknameByDoc(doc *ast.CommentGroup, fullName, inPkgName string, isVar bool) {
func (p *context) initLinknameByDoc(doc *ast.CommentGroup, fullName, inPkgName string, isVar bool) bool {
if doc != nil {
for n := len(doc.List) - 1; n >= 0; n-- {
line := doc.List[n].Text
found := p.initLinkname(line, func(name string) (_ string, _, ok bool) {
ret := p.initLinkname(line, func(name string) (_ string, _, ok bool) {
return fullName, isVar, name == inPkgName
})
if !found {
break
if ret != unknownDirective {
return ret == hasLinkname
}
}
}
return false
}
func (p *context) initLinkname(line string, f func(inPkgName string) (fullName string, isVar, ok bool)) bool {
const (
noDirective = iota
hasLinkname
unknownDirective = -1
)
func (p *context) initLinkname(line string, f func(inPkgName string) (fullName string, isVar, ok bool)) int {
const (
linkname = "//go:linkname "
llgolink = "//llgo:link "
llgolink2 = "// llgo:link "
exportName = "//export "
export = "//export "
directive = "//go:"
)
if strings.HasPrefix(line, linkname) {
p.initLink(line, len(linkname), f)
return true
return hasLinkname
} else if strings.HasPrefix(line, llgolink2) {
p.initLink(line, len(llgolink2), f)
return true
return hasLinkname
} else if strings.HasPrefix(line, llgolink) {
p.initLink(line, len(llgolink), f)
return true
} else if strings.HasPrefix(line, exportName) {
p.initCgoExport(line, len(exportName), f)
return true
return hasLinkname
} else if strings.HasPrefix(line, export) {
p.initCgoExport(line, len(export), f)
return hasLinkname
} else if strings.HasPrefix(line, directive) {
// skip unknown annotation but continue to parse the next annotation
return true
return unknownDirective
}
return false
return noDirective
}
func (p *context) initCgoExport(line string, prefix int, f func(inPkgName string) (fullName string, isVar, ok bool)) {
name := strings.TrimSpace(line[prefix:])
if fullName, _, ok := f(name); ok {
p.cgoExports[fullName] = name
p.cgoExports[fullName] = name // TODO(xsw): why not use prog.SetLinkname?
}
}

8
internal/build/build.go
View File

@@ -184,7 +184,7 @@ func Do(args []string, conf *Config) ([]Package, error) {
prog := llssa.NewProgram(target)
sizes := func(sizes types.Sizes, compiler, arch string) types.Sizes {
if arch == "wasm" {
sizes = &types.StdSizes{4, 4}
sizes = &types.StdSizes{WordSize: 4, MaxAlign: 4}
}
return prog.TypeSizes(sizes)
}
@@ -803,7 +803,7 @@ func buildPkg(ctx *context, aPkg *aPackage, verbose bool) error {
fmt.Fprintf(os.Stderr, "==> Export %s: %s\n", aPkg.PkgPath, pkg.ExportFile)
}
if IsCheckEnable() {
if err, msg := llcCheck(ctx.env, pkg.ExportFile); err != nil {
if msg, err := llcCheck(ctx.env, pkg.ExportFile); err != nil {
fmt.Fprintf(os.Stderr, "==> lcc %v: %v\n%v\n", pkg.PkgPath, pkg.ExportFile, msg)
}
}
@@ -811,7 +811,7 @@ func buildPkg(ctx *context, aPkg *aPackage, verbose bool) error {
return nil
}
func llcCheck(env *llvm.Env, exportFile string) (err error, msg string) {
func llcCheck(env *llvm.Env, exportFile string) (msg string, err error) {
bin := filepath.Join(env.BinDir(), "llc")
cmd := exec.Command(bin, "-filetype=null", exportFile)
var buf bytes.Buffer
@@ -904,6 +904,7 @@ func createSSAPkg(prog *ssa.Program, p *packages.Package, verbose bool) *ssa.Pac
return pkgSSA
}
/*
var (
// TODO(xsw): complete build flags
buildFlags = map[string]bool{
@@ -922,6 +923,7 @@ var (
"-ldflags": true, // --ldflags 'flag list': arguments to pass on each go tool link invocation
}
)
*/
const llgoDebug = "LLGO_DEBUG"
const llgoDbgSyms = "LLGO_DEBUG_SYMBOLS"

2
internal/build/clean.go
View File

@@ -26,12 +26,14 @@ import (
"github.com/goplus/llgo/internal/packages"
)
/*
var (
// TODO(xsw): complete clean flags
cleanFlags = map[string]bool{
"-v": false, // -v: print the paths of packages as they are clean
}
)
*/
func Clean(patterns []string, conf *Config) {
if conf.Goos == "" {