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author | Ian Lance Taylor <iant@golang.org> | 2020-12-11 19:10:00 -0800 |
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committer | Ian Lance Taylor <iant@golang.org> | 2020-12-16 04:10:01 +0000 |
commit | 069f9d96d179becc61231d566c9a75f1ec26e991 (patch) | |
tree | 569ada03ac25518dab5181890ec9931096cdc812 | |
parent | 9b955d2d3fcff6a5bc8bce7bafdc4c634a28e95b (diff) | |
download | go-069f9d96d179becc61231d566c9a75f1ec26e991.tar.gz go-069f9d96d179becc61231d566c9a75f1ec26e991.zip |
[release-branch.go1.15] doc/go1.15: mention 1.15.3 cgo restriction on empty structs
For #40954
Change-Id: I6a30aed31a16e820817f4ca5c7f591222e922946
Reviewed-on: https://go-review.googlesource.com/c/go/+/277432
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
(cherry picked from commit 129bb1917b4914f0743ec9b4ef0dfb74df39c07d)
Reviewed-on: https://go-review.googlesource.com/c/go/+/278573
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
-rw-r--r-- | doc/go1.15.html | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/doc/go1.15.html b/doc/go1.15.html index c691bf3bd5b..c9997c0ca36 100644 --- a/doc/go1.15.html +++ b/doc/go1.15.html @@ -397,6 +397,19 @@ Do not send CLs removing the interior tags from such phrases. documentation</a> for more information. </p> +<p><!-- CL 250940 --> + In Go 1.15.3 and later, cgo will not permit Go code to allocate an + undefined struct type (a C struct defined as just <code>struct + S;</code> or similar) on the stack or heap. + Go code will only be permitted to use pointers to those types. + Allocating an instance of such a struct and passing a pointer, or a + full struct value, to C code was always unsafe and unlikely to work + correctly; it is now forbidden. + The fix is to either rewrite the Go code to use only pointers, or to + ensure that the Go code sees the full definition of the struct by + including the appropriate C header file. +</p> + <h3 id="commonname">X.509 CommonName deprecation</h3> <p><!-- CL 231379 --> |