make runtime compatible with wasm

runtime/internal/clite/os/os_nonwasm.go

@@ -0,0 +1,69 @@
+//go:build !wasm
+
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package os
+
+import (
+	_ "unsafe"
+
+	c "github.com/goplus/llgo/runtime/internal/clite"
+	"github.com/goplus/llgo/runtime/internal/clite/syscall"
+)
+
+//go:linkname Getuid C.getuid
+func Getuid() UidT
+
+//go:linkname Geteuid C.geteuid
+func Geteuid() UidT
+
+//go:linkname Getgid C.getgid
+func Getgid() GidT
+
+//go:linkname Getegid C.getegid
+func Getegid() GidT
+
+//go:linkname Chown C.chown
+func Chown(path *c.Char, owner UidT, group GidT) c.Int
+
+//go:linkname Lchown C.lchown
+func Lchown(path *c.Char, owner UidT, group GidT) c.Int
+
+//go:linkname Getrlimit C.getrlimit
+func Getrlimit(resource c.Int, rlp *syscall.Rlimit) c.Int
+
+//go:linkname Setrlimit C.setrlimit
+func Setrlimit(resource c.Int, rlp *syscall.Rlimit) c.Int
+
+//go:linkname Wait4 C.wait4
+func Wait4(pid PidT, statLoc *c.Int, options c.Int, rusage *syscall.Rusage) PidT
+
+/* TODO(xsw):
+ On Alpha, IA-64, MIPS, SuperH, and SPARC/SPARC64, pipe() has the following prototype:
+ struct fd_pair {
+	 long fd[2];
+ };
+ struct fd_pair pipe(void);
+*/
+//go:linkname Pipe C.pipe
+func Pipe(fds *[2]c.Int) c.Int
+
+//go:linkname Fork C.fork
+func Fork() PidT
+
+//go:linkname Kill C.kill
+func Kill(pid PidT, sig c.Int) c.Int