wasm/js: use standard library syscall package

interp/interpreter.go

@@ -239,7 +239,8 @@ func (r *runner) run(fn *function, params []value, parentMem *memoryView, indent
 				// already be emitted in initAll.
 				continue
 			case strings.HasPrefix(callFn.name, "runtime.print") || callFn.name == "runtime._panic" || callFn.name == "runtime.hashmapGet" || callFn.name == "runtime.hashmapInterfaceHash" ||
-				callFn.name == "os.runtime_args" || callFn.name == "internal/task.start" || callFn.name == "internal/task.Current" ||
+				callFn.name == "os.runtime_args" || callFn.name == "syscall.runtime_envs" ||
+				callFn.name == "internal/task.start" || callFn.name == "internal/task.Current" ||
 				callFn.name == "time.startTimer" || callFn.name == "time.stopTimer" || callFn.name == "time.resetTimer":
 				// These functions should be run at runtime. Specifically:
 				//   * Print and panic functions are best emitted directly without

loader/goroot.go

@@ -218,7 +218,7 @@ func listGorootMergeLinks(goroot, tinygoroot string, overrides map[string]bool)
 // with the TinyGo version. This is the case on some targets.
 func needsSyscallPackage(buildTags []string) bool {
 	for _, tag := range buildTags {
-		if tag == "baremetal" || tag == "nintendoswitch" || tag == "tinygo.wasm" {
+		if tag == "baremetal" || tag == "nintendoswitch" || tag == "wasip1" || tag == "wasip2" || tag == "wasm_unknown" {
 			return true
 		}
 	}

src/syscall/file_emulated.go

@@ -1,4 +1,4 @@
-//go:build baremetal || (wasm && !wasip1 && !wasip2) || wasm_unknown
+//go:build baremetal || wasm_unknown
 
 // This file emulates some file-related functions that are only available
 // under a real operating system.

src/syscall/file_hosted.go

@@ -1,4 +1,4 @@
-//go:build !(baremetal || (wasm && !wasip1 && !wasip2) || wasm_unknown)
+//go:build !(baremetal || wasm_unknown)
 
 // This file assumes there is a libc available that runs on a real operating
 // system.

src/syscall/syscall_nonhosted.go

@@ -1,4 +1,4 @@
-//go:build baremetal || js || wasm_unknown
+//go:build baremetal || wasm_unknown
 
 package syscall
 

src/syscall/tables_nonhosted.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 || nintendoswitch || js || wasm_unknown
+//go:build baremetal || nintendoswitch || wasm_unknown
 
 package syscall