53 lines
1.9 KiB
Diff
53 lines
1.9 KiB
Diff
From 069f9d96d179becc61231d566c9a75f1ec26e991 Mon Sep 17 00:00:00 2001
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From: Ian Lance Taylor <iant@golang.org>
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Date: Fri, 11 Dec 2020 19:10:00 -0800
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Subject: [PATCH 01/44] [release-branch.go1.15] doc/go1.15: mention 1.15.3 cgo
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restriction on empty structs
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For #40954
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Change-Id: I6a30aed31a16e820817f4ca5c7f591222e922946
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Reviewed-on: https://go-review.googlesource.com/c/go/+/277432
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Trust: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Keith Randall <khr@golang.org>
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(cherry picked from commit 129bb1917b4914f0743ec9b4ef0dfb74df39c07d)
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Reviewed-on: https://go-review.googlesource.com/c/go/+/278573
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Run-TryBot: Ian Lance Taylor <iant@golang.org>
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TryBot-Result: Go Bot <gobot@golang.org>
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Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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Conflict:NA
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Reference:https://github.com/golang/go/commit/069f9d96d179becc61231d566c9a75f1ec26e991
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---
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doc/go1.15.html | 13 +++++++++++++
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1 file changed, 13 insertions(+)
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diff --git a/doc/go1.15.html b/doc/go1.15.html
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index c691bf3bd5..c9997c0ca3 100644
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--- a/doc/go1.15.html
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+++ b/doc/go1.15.html
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@@ -397,6 +397,19 @@ Do not send CLs removing the interior tags from such phrases.
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documentation</a> for more information.
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</p>
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+<p><!-- CL 250940 -->
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+ In Go 1.15.3 and later, cgo will not permit Go code to allocate an
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+ undefined struct type (a C struct defined as just <code>struct
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+ S;</code> or similar) on the stack or heap.
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+ Go code will only be permitted to use pointers to those types.
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+ Allocating an instance of such a struct and passing a pointer, or a
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+ full struct value, to C code was always unsafe and unlikely to work
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+ correctly; it is now forbidden.
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+ The fix is to either rewrite the Go code to use only pointers, or to
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+ ensure that the Go code sees the full definition of the struct by
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+ including the appropriate C header file.
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+</p>
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+
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<h3 id="commonname">X.509 CommonName deprecation</h3>
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<p><!-- CL 231379 -->
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--
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2.27.0
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