wasm: add support for GOOS=wasip1

This adds true GOOS=wasip1 support in addition to our existing
-target=wasi support. The old support for WASI isn't removed, but should
be treated as deprecated and will likely be removed eventually to reduce
the test burden.

src/os/dir_unix.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build linux && !baremetal && !wasi
+//go:build linux && !baremetal && !wasi && !wasip1
 
 package os
 

src/os/dir_wasi.go

@@ -6,7 +6,7 @@
 // fairly similar: we use fdopendir, fdclosedir, and readdir from wasi-libc in
 // a similar way that the darwin code uses functions from libc.
 
-//go:build wasi
+//go:build wasi || wasip1
 
 package os
 

src/os/env_unix_test.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build darwin || linux
+//go:build darwin || linux || wasip1
 
 package os_test
 

src/os/exec_posix.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build aix || darwin || dragonfly || freebsd || (js && wasm) || linux || netbsd || openbsd || solaris || windows
+//go:build aix || darwin || dragonfly || freebsd || (js && wasm) || linux || netbsd || openbsd || solaris || wasip1 || windows
 
 package os
 

src/os/file_other.go

@@ -1,4 +1,4 @@
-//go:build baremetal || (wasm && !wasi)
+//go:build baremetal || (wasm && !wasi && !wasip1)
 
 package os
 

src/os/file_unix.go

@@ -1,4 +1,4 @@
-//go:build darwin || (linux && !baremetal)
+//go:build darwin || (linux && !baremetal) || wasip1
 
 // target wasi sets GOOS=linux and thus the +linux build tag,
 // even though it doesn't show up in "tinygo info target -wasi"

src/os/getpagesize_test.go

@@ -1,4 +1,4 @@
-//go:build windows || darwin || (linux && !baremetal)
+//go:build windows || darwin || (linux && !baremetal) || wasip1
 
 package os_test
 

src/os/is_wasi_no_test.go

@@ -1,4 +1,4 @@
-//go:build !wasi
+//go:build !wasi && !wasip1
 
 package os_test
 

src/os/is_wasi_test.go

@@ -1,4 +1,4 @@
-//go:build wasi
+//go:build wasi || wasip1
 
 package os_test
 

src/os/os_anyos_test.go

@@ -1,4 +1,4 @@
-//go:build windows || darwin || (linux && !baremetal)
+//go:build windows || darwin || (linux && !baremetal) || wasip1
 
 package os_test
 
@@ -23,7 +23,6 @@ var dot = []string{
 	"os_test.go",
 	"types.go",
 	"stat_darwin.go",
-	"stat_linux.go",
 }
 
 func randomName() string {

src/os/os_chmod_test.go

@@ -1,4 +1,4 @@
-//go:build !baremetal && !js && !wasi
+//go:build !baremetal && !js && !wasi && !wasip1
 
 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style

src/os/os_symlink_test.go

@@ -1,4 +1,4 @@
-//go:build !windows && !baremetal && !js && !wasi
+//go:build !windows && !baremetal && !js && !wasi && !wasip1
 
 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style

src/os/read_test.go

@@ -1,4 +1,4 @@
-//go:build !baremetal && !js && !wasi
+//go:build !baremetal && !js && !wasi && !wasip1
 
 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style

src/os/removeall_noat.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build !baremetal && !js && !wasi
+//go:build !baremetal && !js && !wasi && !wasip1
 
 package os
 

src/os/removeall_other.go

@@ -1,4 +1,4 @@
-//go:build baremetal || js || wasi
+//go:build baremetal || js || wasi || wasip1
 
 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style

src/os/stat_linuxlike.go

@@ -1,9 +1,13 @@
-//go:build linux && !baremetal
+//go:build (linux && !baremetal) || wasip1
 
 // 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.
 
+// Note: this file is used for both Linux and WASI.
+// Eventually it might be better to spit it up, and make the syscall constants
+// match the typical WASI constants instead of the Linux-equivalents used here.
+
 package os
 
 import (

src/os/stat_other.go

@@ -1,4 +1,4 @@
-//go:build baremetal || (wasm && !wasi)
+//go:build baremetal || (wasm && !wasi && !wasip1)
 
 // Copyright 2016 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style

src/os/stat_unix.go

@@ -1,4 +1,4 @@
-//go:build darwin || (linux && !baremetal)
+//go:build darwin || (linux && !baremetal) || wasip1
 
 // Copyright 2016 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style

src/os/tempfile_test.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build !baremetal && !js && !wasi
+//go:build !baremetal && !js && !wasi && !wasip1
 
 package os_test
 

src/os/types_unix.go

@@ -1,4 +1,4 @@
-//go:build darwin || (linux && !baremetal)
+//go:build darwin || (linux && !baremetal) || wasip1
 
 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style