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e4435cb844
This change adds a new GODEBUG flag called pagetrace that writes a low-overhead trace of how pages of memory are managed by the Go runtime. The page tracer is kept behind a GOEXPERIMENT flag due to a potential security risk for setuid binaries. Change-Id: I6f4a2447d02693c25214400846a5d2832ad6e5c0 Reviewed-on: https://go-review.googlesource.com/c/go/+/444157 Reviewed-by: Austin Clements <austin@google.com> Reviewed-by: David Chase <drchase@google.com> Run-TryBot: Michael Knyszek <mknyszek@google.com> TryBot-Result: Gopher Robot <gobot@golang.org>
25 lines
635 B
Go
25 lines
635 B
Go
// Copyright 2022 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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//go:build unix
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package runtime_test
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import (
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"runtime"
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"syscall"
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"testing"
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)
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func TestSyscallFlagAlignment(t *testing.T) {
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// TODO(mknyszek): Check other flags.
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check := func(name string, got, want int) {
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if got != want {
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t.Errorf("flag %s does not line up: got %d, want %d", name, got, want)
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}
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}
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check("O_WRONLY", runtime.O_WRONLY, syscall.O_WRONLY)
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check("O_CREAT", runtime.O_CREAT, syscall.O_CREAT)
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check("O_TRUNC", runtime.O_TRUNC, syscall.O_TRUNC)
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}
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