commit | e2f8766c30881fbbd97e1e039f5ecc38104f907f | [log] [tgz] |
---|---|---|
author | Ian Lance Taylor <iant@golang.org> | Tue Jul 03 22:10:58 2018 -0700 |
committer | Ian Lance Taylor <iant@golang.org> | Thu Jul 05 05:15:15 2018 +0000 |
tree | 2edac01c11a10459f328bcbcb17d6cf23fe5cbcb | |
parent | 9e5fe6baf1dfd8ea7ba1456845a7e1f7256eeeaa [diff] |
cmd/cgo: mark C result as written for msan Otherwise it is possible that msan will consider the C result to be partially initialized, which may cause msan to think that the Go stack is partially uninitialized. The compiler will never mark the stack as initialized, so without this CL it is possible for stack addresses to be passed to msanread, which will cause a false positive error from msan. Fixes #26209 Change-Id: I43a502beefd626eb810ffd8753e269a55dff8248 Reviewed-on: https://go-review.googlesource.com/122196 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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