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cmd/compile: disable checkptr for //go:cgo_unsafe_args functions
Fixes #34968. Change-Id: I538d653fab6cf7cf9b9b7022a1c2d4ae6ee497b6 Reviewed-on: https://go-review.googlesource.com/c/go/+/201823 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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@ -75,7 +75,7 @@ func pragmaValue(verb string) syntax.Pragma {
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case "go:yeswritebarrierrec":
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return Yeswritebarrierrec
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case "go:cgo_unsafe_args":
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return CgoUnsafeArgs
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return CgoUnsafeArgs | NoCheckPtr // implies NoCheckPtr (see #34968)
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case "go:uintptrescapes":
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// For the next function declared in the file
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// any uintptr arguments may be pointer values
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15
test/fixedbugs/issue34968.go
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15
test/fixedbugs/issue34968.go
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@ -0,0 +1,15 @@
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// +build cgo
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// run -gcflags=all=-d=checkptr
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// Copyright 2019 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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// #include <stdlib.h>
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import "C"
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func main() {
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C.malloc(100)
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}
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