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In assembly free packages (aka "complete" or "pure go"), allow bodyless functions if they are linkname'd to something else. Presumably the thing the function is linkname'd to has a definition. If not, the linker will complain. And linkname is unsafe, so we expect users to know what they are doing. Note this handles only one direction, where the linkname directive is in the local package. If the linkname directive is in the remote package, this CL won't help. (See os/signal/sig.s for an example.) Fixes #23311 Change-Id: I824361b4b582ee05976d94812e5b0e8b0f7a18a6 Reviewed-on: https://go-review.googlesource.com/c/151318 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
15 lines
267 B
Go
15 lines
267 B
Go
// Copyright 2018 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 _ "unsafe" // for linkname
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//go:linkname f runtime.GC
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func f()
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func main() {
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f()
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}
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