32 lines
699 B
Go
32 lines
699 B
Go
// Copyright 2024 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"fmt"
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"io"
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)
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// Wasm page size.
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const pageSize = 64 * 1024
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// Expect less than 3 MB + 1 page of memory usage for a small wasm
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// program. This reflects the current allocator. If the allocator
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// changes, update this value.
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const want = 3<<20 + pageSize
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var w = io.Discard
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func main() {
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fmt.Fprintln(w, "hello world")
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sz := uintptr(currentMemory()) * pageSize
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if sz > want {
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fmt.Printf("FAIL: unexpected memory size %d, want <= %d\n", sz, want)
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}
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}
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func currentMemory() int32 // implemented in assembly
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