syscall: Stat_t for js/wasip1

runtime/internal/clite/syscall/fs_wasip1.go

@@ -0,0 +1,24 @@
+// Copyright 2023 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 wasip1
+
+package syscall
+
+type Stat_t struct {
+	Dev      uint64
+	Ino      uint64
+	Filetype uint8
+	Nlink    uint64
+	Size     uint64
+	Atime    uint64
+	Mtime    uint64
+	Ctime    uint64
+
+	Mode int
+
+	// Uid and Gid are always zero on wasip1 platforms
+	Uid uint32
+	Gid uint32
+}

runtime/internal/clite/syscall/fs_wasm.go

@@ -310,14 +310,3 @@ func hasPrefix(s, prefix string) bool {
 func hasSuffix(s, suffix string) bool {
 	return len(s) >= len(suffix) && s[len(s)-len(suffix):] == suffix
 }
-
-type Stat_t struct {
-	Dev      uint64
-	Ino      uint64
-	Filetype uint8
-	Nlink    uint64
-	Size     uint64
-	Atime    uint64
-	Mtime    uint64
-	Ctime    uint64
-}

runtime/internal/clite/syscall/syscall_js.go

@@ -0,0 +1,26 @@
+// Copyright 2018 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 js && wasm
+
+package syscall
+
+type Stat_t struct {
+	Dev       int64
+	Ino       uint64
+	Mode      uint32
+	Nlink     uint32
+	Uid       uint32
+	Gid       uint32
+	Rdev      int64
+	Size      int64
+	Blksize   int32
+	Blocks    int32
+	Atime     int64
+	AtimeNsec int64
+	Mtime     int64
+	MtimeNsec int64
+	Ctime     int64
+	CtimeNsec int64
+}

runtime/internal/lib/os/stat_js.go

@@ -0,0 +1,45 @@
+// Copyright 2009 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 js && wasm
+
+package os
+
+import (
+	"time"
+
+	"github.com/goplus/llgo/runtime/internal/clite/syscall"
+)
+
+func fillFileStatFromSys(fs *fileStat, name string) {
+	fs.name = basename(name)
+	fs.size = fs.sys.Size
+	fs.modTime = time.Unix(fs.sys.Mtime, fs.sys.MtimeNsec)
+	fs.mode = FileMode(fs.sys.Mode & 0777)
+	switch fs.sys.Mode & syscall.S_IFMT {
+	case syscall.S_IFBLK:
+		fs.mode |= ModeDevice
+	case syscall.S_IFCHR:
+		fs.mode |= ModeDevice | ModeCharDevice
+	case syscall.S_IFDIR:
+		fs.mode |= ModeDir
+	case syscall.S_IFIFO:
+		fs.mode |= ModeNamedPipe
+	case syscall.S_IFLNK:
+		fs.mode |= ModeSymlink
+	case syscall.S_IFREG:
+		// nothing to do
+	case syscall.S_IFSOCK:
+		fs.mode |= ModeSocket
+	}
+	if fs.sys.Mode&syscall.S_ISGID != 0 {
+		fs.mode |= ModeSetgid
+	}
+	if fs.sys.Mode&syscall.S_ISUID != 0 {
+		fs.mode |= ModeSetuid
+	}
+	if fs.sys.Mode&syscall.S_ISVTX != 0 {
+		fs.mode |= ModeSticky
+	}
+}

runtime/internal/lib/os/stat_wasip1.go

@@ -0,0 +1,43 @@
+// Copyright 2023 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 wasip1
+
+package os
+
+import (
+	"time"
+
+	"github.com/goplus/llgo/runtime/internal/clite/syscall"
+)
+
+func fillFileStatFromSys(fs *fileStat, name string) {
+	fs.name = basename(name)
+	fs.size = int64(fs.sys.Size)
+	fs.modTime = time.Unix(0, int64(fs.sys.Mtime))
+
+	switch fs.sys.Filetype {
+	case syscall.FILETYPE_BLOCK_DEVICE:
+		fs.mode |= ModeDevice
+	case syscall.FILETYPE_CHARACTER_DEVICE:
+		fs.mode |= ModeDevice | ModeCharDevice
+	case syscall.FILETYPE_DIRECTORY:
+		fs.mode |= ModeDir
+	case syscall.FILETYPE_SOCKET_DGRAM:
+		fs.mode |= ModeSocket
+	case syscall.FILETYPE_SOCKET_STREAM:
+		fs.mode |= ModeSocket
+	case syscall.FILETYPE_SYMBOLIC_LINK:
+		fs.mode |= ModeSymlink
+	}
+
+	// WASI does not support unix-like permissions, but Go programs are likely
+	// to expect the permission bits to not be zero so we set defaults to help
+	// avoid breaking applications that are migrating to WASM.
+	if fs.sys.Filetype == syscall.FILETYPE_DIRECTORY {
+		fs.mode |= 0700
+	} else {
+		fs.mode |= 0600
+	}
+}