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.

GNUmakefile

@@ -427,17 +427,17 @@ tinygo-bench-fast:
 
 # Same thing, except for wasi rather than the current platform.
 tinygo-test-wasi:
-	$(TINYGO) test -target wasi $(TEST_PACKAGES_FAST) $(TEST_PACKAGES_SLOW) ./tests/runtime_wasi
+	$(TINYGO) test -target wasip1 $(TEST_PACKAGES_FAST) $(TEST_PACKAGES_SLOW) ./tests/runtime_wasi
 tinygo-test-wasip1:
 	GOOS=wasip1 GOARCH=wasm $(TINYGO) test $(TEST_PACKAGES_FAST) $(TEST_PACKAGES_SLOW) ./tests/runtime_wasi
 tinygo-test-wasi-fast:
-	$(TINYGO) test -target wasi $(TEST_PACKAGES_FAST) ./tests/runtime_wasi
+	$(TINYGO) test -target wasip1 $(TEST_PACKAGES_FAST) ./tests/runtime_wasi
 tinygo-test-wasip1-fast:
 	GOOS=wasip1 GOARCH=wasm $(TINYGO) test $(TEST_PACKAGES_FAST) ./tests/runtime_wasi
 tinygo-bench-wasi:
-	$(TINYGO) test -target wasi -bench . $(TEST_PACKAGES_FAST) $(TEST_PACKAGES_SLOW)
+	$(TINYGO) test -target wasip1 -bench . $(TEST_PACKAGES_FAST) $(TEST_PACKAGES_SLOW)
 tinygo-bench-wasi-fast:
-	$(TINYGO) test -target wasi -bench . $(TEST_PACKAGES_FAST)
+	$(TINYGO) test -target wasip1 -bench . $(TEST_PACKAGES_FAST)
 
 # Test external packages in a large corpus.
 test-corpus:
@@ -445,7 +445,7 @@ test-corpus:
 test-corpus-fast:
 	CGO_CPPFLAGS="$(CGO_CPPFLAGS)" CGO_CXXFLAGS="$(CGO_CXXFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" $(GO) test $(GOTESTFLAGS) -timeout=1h -buildmode exe -tags byollvm -run TestCorpus -short . -corpus=testdata/corpus.yaml
 test-corpus-wasi: wasi-libc
-	CGO_CPPFLAGS="$(CGO_CPPFLAGS)" CGO_CXXFLAGS="$(CGO_CXXFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" $(GO) test $(GOTESTFLAGS) -timeout=1h -buildmode exe -tags byollvm -run TestCorpus . -corpus=testdata/corpus.yaml -target=wasi
+	CGO_CPPFLAGS="$(CGO_CPPFLAGS)" CGO_CXXFLAGS="$(CGO_CXXFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" $(GO) test $(GOTESTFLAGS) -timeout=1h -buildmode exe -tags byollvm -run TestCorpus . -corpus=testdata/corpus.yaml -target=wasip1
 
 tinygo-baremetal:
 	# Regression tests that run on a baremetal target and don't fit in either main_test.go or smoketest.

README.md

@@ -41,7 +41,7 @@ tinygo flash -target arduino examples/blinky1
 
 TinyGo is very useful for compiling programs both for use in browsers (WASM) as well as for use on servers and other edge devices (WASI).
 
-TinyGo programs can run in Fastly Compute@Edge (https://developer.fastly.com/learning/compute/go/), Fermyon Spin (https://developer.fermyon.com/spin/go-components), wazero (https://wazero.io/languages/tinygo/) and many other WebAssembly runtimes.
+TinyGo programs can run in [Fastly Compute](https://www.fastly.com/documentation/guides/compute/go/), [Fermyon Spin](https://developer.fermyon.com/spin/go-components), [wazero](https://wazero.io/languages/tinygo/) and many other WebAssembly runtimes.
 
 Here is a small TinyGo program for use by a WASI host application:
 
@@ -54,14 +54,14 @@ func add(x, y uint32) uint32 {
 	return x + y
 }
 
-// main is required for the `wasi` target, even if it isn't used.
+// main is required for the `wasip1` target, even if it isn't used.
 func main() {}
 ```
 
 This compiles the above TinyGo program for use on any WASI runtime:
 
 ```shell
-tinygo build -o main.wasm -target=wasi main.go
+tinygo build -o main.wasm -target=wasip1 main.go
 ```
 
 ## Installation

main.go

@@ -285,7 +285,7 @@ func Test(pkgName string, stdout, stderr io.Writer, options *compileopts.Options
 		// Tests are always run in the package directory.
 		cmd.Dir = result.MainDir
 
-		// wasmtime is the default emulator used for `-target=wasi`. wasmtime
+		// wasmtime is the default emulator used for `-target=wasip1`. wasmtime
 		// is a WebAssembly runtime CLI with WASI enabled by default. However,
 		// only stdio are allowed by default. For example, while STDOUT routes
 		// to the host, other files don't. It also does not inherit environment
@@ -1548,6 +1548,11 @@ func main() {
 		options.PrintCommands = printCommand
 	}
 
+	// Compatibility with legacy -target=wasi
+	if options.Target == "wasi" {
+		options.Target = "wasip1"
+	}
+
 	err = options.Verify()
 	if err != nil {
 		fmt.Fprintln(os.Stderr, err.Error())

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
 

targets/wasip1.json

@@ -2,9 +2,9 @@
 	"llvm-target":   "wasm32-unknown-wasi",
 	"cpu":           "generic",
 	"features":      "+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext",
-	"build-tags":    ["tinygo.wasm", "wasi"],
-	"goos":          "linux",
-	"goarch":        "arm",
+	"build-tags":    ["tinygo.wasm"],
+	"goos":          "wasip1",
+	"goarch":        "wasm",
 	"linker":        "wasm-ld",
 	"libc":          "wasi-libc",
 	"rtlib":         "compiler-rt",