// Copyright 2021 The Go Authors. All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

// TODO: expand the set of supported platforms, with testing. Nothing about

// the instrumentation is OS specific, but only amd64 and arm64 are

// supported in the runtime. See src/runtime/libfuzzer*.

//

// If you update this constraint, also update internal/platform.FuzzInstrumented.

//

//go:build !((darwin || linux || windows || freebsd || openbsd) && (amd64 || arm64)) && !loong64

package fuzz

// TODO(#48504): re-enable on platforms where instrumentation works.

// In theory, we shouldn't need this file at all: if the binary was built

// without coverage, then _counters and _ecounters should have the same address.

// However, this caused an init failure on aix/ppc64, so it's disabled here.

// coverage returns a []byte containing unique 8-bit counters for each edge of

// the instrumented source code. This coverage data will only be generated if

// `-d=libfuzzer` is set at build time. This can be used to understand the code

// coverage of a test execution.

func coverage() []byte { return nil }