1 files changed, 61 insertions, 0 deletions
diff --git a/src/runtime/runtime_wasm_wasip2.go b/src/runtime/runtime_wasm_wasip2.go
new file mode 100644
index 000000000..ca189aad6
--- /dev/null
+++ b/src/runtime/runtime_wasm_wasip2.go
@@ -0,0 +1,61 @@
+//go:build wasip2
+
+package runtime
+
+import (
+	"unsafe"
+
+	"internal/wasi/cli/v0.2.0/environment"
+	monotonicclock "internal/wasi/clocks/v0.2.0/monotonic-clock"
+)
+
+type timeUnit int64
+
+//export wasi:cli/[email protected]#run
+func __wasi_cli_run_run() uint32 {
+	_start()
+	return 0
+}
+
+//export _start
+func _start() {
+	// These need to be initialized early so that the heap can be initialized.
+	heapStart = uintptr(unsafe.Pointer(&heapStartSymbol))
+	heapEnd = uintptr(wasm_memory_size(0) * wasmPageSize)
+	run()
+}
+
+func init() {
+}
+
+var args []string
+
+//go:linkname os_runtime_args os.runtime_args
+func os_runtime_args() []string {
+	if args == nil {
+		args = environment.GetArguments().Slice()
+	}
+	return args
+}
+
+//export cabi_realloc
+func cabi_realloc(ptr, oldsize, align, newsize unsafe.Pointer) unsafe.Pointer {
+	return realloc(ptr, uintptr(newsize))
+}
+
+func ticksToNanoseconds(ticks timeUnit) int64 {
+	return int64(ticks)
+}
+
+func nanosecondsToTicks(ns int64) timeUnit {
+	return timeUnit(ns)
+}
+
+func sleepTicks(d timeUnit) {
+	p := monotonicclock.SubscribeDuration(monotonicclock.Duration(d))
+	p.Block()
+}
+
+func ticks() timeUnit {
+	return timeUnit(monotonicclock.Now())
+}