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doc/go1.14: more runtime/compiler release notes

This is based on reading through every commit message to runtime and
cmd/{compile,link,internal,asm} since Go 1.13.

Change-Id: I253b1a70ed265f15180fa20c191ceeafa6612ac4
Reviewed-on: https://go-review.googlesource.com/c/go/+/211977
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This commit is contained in:
Austin Clements 2019-12-18 15:24:42 -05:00
parent b234fdb5cd
commit 4d5bb9c609

View File

@ -30,6 +30,10 @@ Do not send CLs removing the interior tags from such phrases.
TODO
</p>
<p><!-- CL 187519 -->
TODO: <a href="https://golang.org/cl/187519">https://golang.org/cl/187519</a>: allow embedding overlapping interfaces
</p>
<h2 id="ports">Ports</h2>
<p>
@ -95,7 +99,7 @@ TODO
<h3 id="freebsd">FreeBSD</h3>
<p><!-- golang.org/issue/24715 -->
<p><!-- CL 199919 -->
Go now supports the 64-bit ARM architecture on FreeBSD (the
<code>freebsd/arm64</code> port).
</p>
@ -107,6 +111,13 @@ TODO
Go 1.14 drops support for the Native Client platform (<code>GOOS=nacl</code>).
</p>
<p><!-- CL 203758 -->
The runtime now respects zone CPU caps
(the <code>zone.cpu-cap</code> resource control)
for <code>runtime.NumCPU</code> and the default value
of <code>GOMAXPROCS</code>.
</p>
<h2 id="tools">Tools</h2>
<p>
@ -230,10 +241,6 @@ TODO
<h2 id="runtime">Runtime</h2>
<p>
TODO
</p>
<p><!-- CL 190098 -->
This release improves the performance of most uses
of <code>defer</code> to incur almost zero overhead compared to
@ -269,6 +276,8 @@ TODO
visible changes.
</p>
<!-- TODO: Maybe CL 200439? -->
<h2 id="compiler">Compiler</h2>
<p><!-- CL 162237 -->
@ -292,6 +301,12 @@ TODO
one of the <code>unsafe.Pointer</code>-typed operands must point
into the same object.
</li>
</ol>
<p><!-- CL 204338 -->
The compiler can now emit machine-readable logs of key optimizations
using the <code>-json</code> flag, including inlining, escape
analysis, bounds-check elimination, and nil-check elimination
</p>
<p><!-- CL 196959 -->
@ -305,6 +320,14 @@ TODO
following platform conventions.
</p>
<p><!-- CL 202117 -->
This release includes experimental support for compiler-inserted
coverage instrumentation for fuzzing.
See <a href="https://golang.org/issue/14565">the issue</a> for more
details.
This API may change in future releases.
</p>
<h2 id="library">Core library</h2>
<p>
@ -370,7 +393,7 @@ TODO
<dl id="plugin"><dt><a href="/pkg/plugin/">plugin</a></dt>
<dd>
<p><!-- CL 191617 -->
TODO: <a href="https://golang.org/cl/191617">https://golang.org/cl/191617</a>: add freebsd/amd64 plugin support
The <code>plugin</code> package now supports <code>freebsd/amd64</code>.
</p>
</dl><!-- plugin -->
@ -395,16 +418,28 @@ TODO
recursive <code>panic</code>/<code>recover</code>.
</p>
<p><!-- CL 187739 -->
TODO: <a href="https://golang.org/cl/187739">https://golang.org/cl/187739</a>: treat CTRL_CLOSE_EVENT, CTRL_LOGOFF_EVENT, CTRL_SHUTDOWN_EVENT as SIGTERM on Windows
</p>
<p><!-- CL 188297 -->
TODO: <a href="https://golang.org/cl/188297">https://golang.org/cl/188297</a>: don&#39;t forward SIGPIPE on macOS
<p><!-- CL 188297, CL 191785 -->
On macOS, <code>SIGPIPE</code> is no longer forwarded to signal
handlers installed before the Go runtime is initialized.
This is necessary because macOS delivers <code>SIGPIPE</code>
<a href="https://golang.org/issue/33384">to the main thread</a>
rather than the thread writing to the closed pipe.
</p>
</dl><!-- runtime -->
<dl id="signal"><dt><a href="/pkg/signal/">signal</a></dt>
<dd>
<p><!-- CL 187739 -->
On Windows,
the <code>CTRL_CLOSE_EVENT</code>, <code>CTRL_LOGOFF_EVENT</code>,
and <code>CTRL_SHUTDOWN_EVENT</code> events now generate
a <code>syscall.SIGTERM</code> signal, similar to how Control-C
and Control-Break generate a <code>syscall.SIGINT</code> signal.
</p>
</dl><!-- signal -->
<dl id="testing"><dt><a href="/pkg/testing/">testing</a></dt>
<dd>
<p><!-- CL 201359 -->