all: replace target=wasi with target=wasip1

This eliminates the 'wasi' build tag in favor of 'GOOS=wasip1', introduced in Go 1.21.

For backwards compatablity, -target=wasi is a synonym for -target=wasip1.

src/crypto/rand/rand_urandom.go

@@ -1,4 +1,4 @@
-//go:build linux && !baremetal && !wasi
+//go:build linux && !baremetal && !wasip1
 
 // This implementation of crypto/rand uses the /dev/urandom pseudo-file to
 // generate random numbers.

src/os/dir_test.go

@@ -1,4 +1,4 @@
-//go:build darwin || (linux && !baremetal && !js && !wasi && !386 && !arm)
+//go:build darwin || (linux && !baremetal && !js && !wasip1 && !386 && !arm)
 
 package os_test
 

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 && !wasip1
+//go:build linux && !baremetal && !wasip1
 
 package os
 

src/os/dir_wasip1.go

@@ -2,11 +2,11 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// This file was derived from src/os/dir_darwin.go since the logic for wasi is
+// This file was derived from src/os/dir_darwin.go since the logic for WASI is
 // 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 || wasip1
+//go:build wasip1
 
 package os
 

src/os/dirent_linux.go

@@ -1,4 +1,4 @@
-//go:build !baremetal && !js && !wasi
+//go:build !baremetal && !js && !wasip1
 
 // Copyright 2020 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style

src/os/file_other.go

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

src/os/is_wasi_no_test.go

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

src/os/is_wasi_test.go

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

src/os/os_chmod_test.go

@@ -1,4 +1,4 @@
-//go:build !baremetal && !js && !wasi && !wasip1
+//go:build !baremetal && !js && !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 && !wasip1
+//go:build !windows && !baremetal && !js && !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 && !wasip1
+//go:build !baremetal && !js && !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 && !wasip1
+//go:build !baremetal && !js && !wasip1
 
 package os
 

src/os/stat_other.go

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

src/runtime/memhash_fnv.go

@@ -1,4 +1,4 @@
-//go:build (!wasi && !runtime_memhash_tsip && !runtime_memhash_leveldb) || (wasi && runtime_memhash_fnv)
+//go:build (!wasip1 && !runtime_memhash_tsip && !runtime_memhash_leveldb) || (wasip1 && runtime_memhash_fnv)
 
 // This is the default for all targets except WASI, unless a more specific build
 // tag is set.

src/runtime/memhash_leveldb.go

@@ -1,4 +1,4 @@
-//go:build runtime_memhash_leveldb || (wasi && !runtime_memhash_fnv && !runtime_memhash_tsip)
+//go:build runtime_memhash_leveldb || (wasip1 && !runtime_memhash_fnv && !runtime_memhash_tsip)
 
 // This is the default for WASI, but can also be used on other targets with the
 // right build tag.

src/runtime/os_linux.go

@@ -1,4 +1,4 @@
-//go:build linux && !baremetal && !nintendoswitch && !wasi && !wasm_unknown
+//go:build linux && !baremetal && !nintendoswitch && !wasip1 && !wasm_unknown
 
 package runtime
 

src/runtime/runtime_unix.go

@@ -1,4 +1,4 @@
-//go:build (darwin || (linux && !baremetal && !wasi && !wasm_unknown)) && !nintendoswitch
+//go:build (darwin || (linux && !baremetal && !wasip1 && !wasm_unknown)) && !nintendoswitch
 
 package runtime
 

src/runtime/runtime_wasip1.go

@@ -1,4 +1,4 @@
-//go:build tinygo.wasm && (wasi || wasip1)
+//go:build wasip1
 
 package runtime
 

src/runtime/runtime_wasm_js.go

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

src/syscall/errno_other.go

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

src/syscall/syscall_libc_wasip1.go

@@ -1,4 +1,4 @@
-//go:build wasi || wasip1
+//go:build wasip1
 
 package syscall
 
@@ -397,8 +397,16 @@ func Chmod(path string, mode uint32) (err error) {
 	return Lstat(path, &stat)
 }
 
+// wasmPageSize is the size of a page in WebAssembly's 32-bit memory. This
+// is also its only unit of change.
+//
+// See https://www.w3.org/TR/wasm-core-1/#page-size
+//
+// FIXME: this is also defined in package runtime.
+const wasmPageSize = 64 * 1024
+
 func Getpagesize() int {
-	return libc_getpagesize()
+	return wasmPageSize
 }
 
 type Utsname struct {

src/testing/is_wasi_no_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 !wasi && !wasip1
+//go:build !wasip1
 
 package testing_test
 

src/testing/is_wasi_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 wasi || wasip1
+//go:build wasip1
 
 package testing_test