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authorAustin Clements <austin@google.com>2019-12-18 15:24:42 -0500
committerAustin Clements <austin@google.com>2019-12-20 23:07:52 +0000
commit4d5bb9c60905b162da8b767a8a133f6b4edcaa65 (patch)
tree56e2298880f0a588885758991471f5f779bf2cb5
parentb234fdb5cd13ae43bda389e4eb3ce7cee3cfc420 (diff)
downloadgo-4d5bb9c60905b162da8b767a8a133f6b4edcaa65.tar.xz
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>
-rw-r--r--doc/go1.14.html57
1 files changed, 46 insertions, 11 deletions
diff --git a/doc/go1.14.html b/doc/go1.14.html
index c255e81ff8..b0d2c97403 100644
--- a/doc/go1.14.html
+++ b/doc/go1.14.html
@@ -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 -->
@@ -395,15 +418,27 @@ 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><!-- 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>
- <p><!-- CL 188297 -->
- TODO: <a href="https://golang.org/cl/188297">https://golang.org/cl/188297</a>: don&#39;t forward SIGPIPE on macOS
+</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><!-- runtime -->
+</dl><!-- signal -->
<dl id="testing"><dt><a href="/pkg/testing/">testing</a></dt>
<dd>