If a C union type (or a C++ class type) can contain a pointer field,
then run the cgo checks on pointers to that type. This will test the
pointer as though it were an unsafe.Pointer, and will crash if it points
to Go memory that contains a pointer.

Fixes #15942.

Change-Id: Ic2d07ed9648d4b27078ae7683e26196bcbc59fc9
Reviewed-on: https://go-review.googlesource.com/33237
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Updates #17821

Change-Id: Iebd2e88b2d4f3d757ffad72456f4bfc0607d8110
Reviewed-on: https://go-review.googlesource.com/33162
Run-TryBot: David Crawshaw <crawshaw@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

In plugins and every program that opens a plugin, include a hash of
every imported package.

There are two versions of each hash: one local and one exported.
As the program starts and plugins are loaded, the first exported
symbol for each package becomes the canonical version.

Any subsequent plugin's local package hash symbol has to match the
canonical version.

Fixes #17832

Change-Id: I4e62c8e1729d322e14b1673bada40fa7a74ea8bc
Reviewed-on: https://go-review.googlesource.com/33161Reviewed-by: Ian Lance Taylor <iant@golang.org>

Fixes #17900.

Change-Id: I42cda6ac9cf48ed739d3a015a90b3cb15edf8ddf
Reviewed-on: https://go-review.googlesource.com/33243
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

I guess this was fixed at some point. Remove a skipped test in
net/http and add an explicit test in net.

Fixes #17695

Change-Id: Idb9f3e236b726bb45098474b830c95c1fce57529
Reviewed-on: https://go-review.googlesource.com/33242
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Apparently when GOMAXPROCS == 1 a simple sched_yield in a tight loop is
not necessarily sufficient to permit a signal handler to run. Instead,
sleep for 1/1000 of a second.

Fixes #16649.

Change-Id: I83910144228556e742b7a92a441732ef61aa49d9
Reviewed-on: https://go-review.googlesource.com/33239
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

This change redoes the fix for #16101 (CL 31092) in a different way by
making t.Clone return the template associated with the t.Name() while
allowing for the case that a template of the same name is define-d.

Fixes #17735.

Change-Id: I1e69672390a4c81aa611046a209008ae4a3bb723
Reviewed-on: https://go-review.googlesource.com/33210
Run-TryBot: Caleb Spare <cespare@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>

Change-Id: I9a42cb55544185ade20b2a4a9de5d39a6cfc6fc6
Reviewed-on: https://go-review.googlesource.com/33172Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Updates x/net/http2 to x/net git rev 00ed5e9 for:

    http2: schedule RSTStream writes onto its stream's queue
    https://golang.org/cl/33238

Fixes #17243

Change-Id: I79cc5d15bf69ead28d549d4f798c12f4ee2a2201
Reviewed-on: https://go-review.googlesource.com/33241Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Instead of scanning the text to count newlines, which is n², keep track as we go
and store the line number in the token.

benchmark                 old ns/op      new ns/op     delta
BenchmarkParseLarge-4     1589721293     38783310      -97.56%

Fixes #17851

Change-Id: I231225c61e667535e2ce55cd2facea6d279cc59d
Reviewed-on: https://go-review.googlesource.com/33234
Run-TryBot: Rob Pike <r@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Updates x/net/http2 to x/net git rev 6dfeb344 for:

   http2: make Server respect http1 Server's SetKeepAlivesEnabled
   https://golang.org/cl/33153

And adds a test in std.

Fixes #17717

Change-Id: I3ba000abb6f3f682261e105d8a4bb93bde6609fe
Reviewed-on: https://go-review.googlesource.com/33231
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tom Bergan <tombergan@google.com>

This reverts commit 794fb71d.

Reason for revert: submitted without TryBots and it broke all three race builders.

Change-Id: I80a1e566616f0ee8fa3529d4eeee04268f8a713b
Reviewed-on: https://go-review.googlesource.com/33232Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

comment on unexported function starts with wrong functionname

Change-Id: Ib16c2fe42b5a8d4606ed719f620923c17839d091
Reviewed-on: https://go-review.googlesource.com/33203Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Instead of scanning the text to count newlines, which is n², keep track as we go
and store the line number in the token.

benchmark                 old ns/op      new ns/op     delta
BenchmarkParseLarge-4     1589721293     38783310      -97.56%

Fixes #17851

Change-Id: Ieaf89a35e371b405ad92e38baa1e3fa98d18cfb4
Reviewed-on: https://go-review.googlesource.com/32923Reviewed-by: Robert Griesemer <gri@golang.org>

These are functionality tests, not formatter tests.

I also tested manually that 'go test cmd/go'
without -short still passes.


Change-Id: Id146e1dc3b65e19ea531869725cd0b97f4801b8b
Reviewed-on: https://go-review.googlesource.com/33169
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Previously, `os.Clearenv()` (by way of `syscall.Clearenv`) would simply
set all environment variables' values to `""` rather than actually
unsetting them causing subsequent `os.LookupEnv` calls to return that
they were still set.

Fixes #17902

Change-Id: I54081b4b98665e9a39f55ea7582c8d40bb8a2a22
Reviewed-on: https://go-review.googlesource.com/33168
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>

Deadlines have been implemented on Plan 9 in CL 31521.

Enable the following tests:

 - TestServerTimeouts
 - TestOnlyWriteTimeout
 - TestTLSHandshakeTimeout
 - TestIssue4191_InfiniteGetTimeout
 - TestIssue4191_InfiniteGetToPutTimeout

Updates #7237.

Change-Id: If5e75cfaa9133dcf9ce6aac9fc2badafc1612b64
Reviewed-on: https://go-review.googlesource.com/33197
Run-TryBot: David du Colombier <0intro@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Change-Id: I3c664201baef6d7dbed94dab63db0ac974bf6817
Reviewed-on: https://go-review.googlesource.com/33198
TryBot-Result: Gobot Gobot <gobot@golang.org>
Run-TryBot: David du Colombier <0intro@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

This reverts commit f15915af.

CL 32851 fixed cmd/vet's handling of fmt.Formatter.

Updates #17057.

Change-Id: I3409100d16037645946fe7fe78fbb173e1648494
Reviewed-on: https://go-review.googlesource.com/33166
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Fixes these vet complaints:

net/error_test.go:254: unrecognized printf flag for verb 'T': '#'
os/os_test.go:1067: arg mt for printf verb %d of wrong type: time.Time
runtime/debug/garbage_test.go:83: arg dt for printf verb %d of wrong type: time.Time

Change-Id: I0e986712a4b083b75fb111e687e424d06a85a47b
Reviewed-on: https://go-review.googlesource.com/33167
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Mention that it specifically returns x / 2, and do the same for
EncodedLen.

Change-Id: Ie334f5abecbc487caf4965abbcd14442591bef2a
Change-Id: Idfa413faad487e534489428451bf736b009293d6
Reviewed-on: https://go-review.googlesource.com/33191Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Deadlines have been implemented on Plan 9 in CL 31521.

Enable the following tests:

 - TestReadTimeout
 - TestReadFromTimeout
 - TestWriteTimeout
 - TestWriteToTimeout
 - TestReadTimeoutFluctuation
 - TestVariousDeadlines
 - TestVariousDeadlines1Proc
 - TestVariousDeadlines4Proc
 - TestReadWriteDeadlineRace

Change-Id: I221ed61d55f7f1e4345b37af6748c04e1e91e062
Reviewed-on: https://go-review.googlesource.com/33196
Run-TryBot: David du Colombier <0intro@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Updates #17057.

Change-Id: I54c838d3a44007d4023754e42971e91bfb5e8612
Reviewed-on: https://go-review.googlesource.com/32851
Run-TryBot: Rob Pike <r@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>

Simplifies https://golang.org/cl/33145
which fixed #17720.

Change-Id: Ib922d493cdc5920832dc95b55094796baca7243e
Reviewed-on: https://go-review.googlesource.com/33194Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

This issue has been fixed in CL 31390.

Change-Id: I0c2425fd33be878037d10d612a50116a7b693431
Reviewed-on: https://go-review.googlesource.com/33195
Run-TryBot: David du Colombier <0intro@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Updates #16360

Change-Id: I66ff23e0501363f58fe891d5e95806422071f93b
Reviewed-on: https://go-review.googlesource.com/30162
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Don't verify tls host when profiling https+insecure://host/port/...,
as per discussion in https://go-review.googlesource.com/#/c/20885/.

Fixes: #11468

Change-Id: Ibfc236e5442a00339334602a4014e017c62d9e7a
Reviewed-on: https://go-review.googlesource.com/33157Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Deadlines have been implemented on Plan 9 in CL 31521.

Fixes #17477.

Change-Id: Icb742ac30933b6d2f9350fc4e6acbcd433c66c21
Reviewed-on: https://go-review.googlesource.com/33190Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Add a variant of sync/atomic's TestUnaligned64 to
runtime/internal/atomic.

Skips the test on arm for now where it's currently failing.

Updates #17786

Change-Id: If63f9c1243e9db7b243a95205b2d27f7d1dc1e6e
Reviewed-on: https://go-review.googlesource.com/33159
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Fixes #17826
Updates #17302

Change-Id: I7c1ebd965e679e7169a97e62d27ae3ede2473aa1
Reviewed-on: https://go-review.googlesource.com/33152Reviewed-by: Ian Lance Taylor <iant@golang.org>

This change is an experimental implementation of asynchronous
cancelable I/O operations on Plan 9, which are required to
implement deadlines.

There are no asynchronous syscalls on Plan 9. I/O operations
are performed with blocking pread and pwrite syscalls.

Implementing deadlines in Go requires a way to interrupt
I/O operations.

It is possible to interrupt reads and writes on a TCP connection
by forcing the closure of the TCP connection. This approach
has been used successfully in CL 31390.

However, we can't implement deadlines with this method, since
we require to be able to reuse the connection after the timeout.

On Plan 9, I/O operations are interrupted when the process
receives a note. We can rely on this behavior to implement
a more generic approach.

When doing an I/O operation (read or write), we start the I/O in
its own process, then wait for the result asynchronously. The
process is able to handle the "hangup" note. When receiving the
"hangup" note, the currently running I/O operation is canceled
and the process returns.

This way, deadlines can be implemented by sending an "hangup"
note to the process running the blocking I/O operation, after
the expiration of a timer.

Fixes #11932.
Fixes #17498.

Change-Id: I414f72c7a9a4f9b8f9c09ed3b6c269f899d9b430
Reviewed-on: https://go-review.googlesource.com/31521Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

1e-9 has a 1 in the last place, causing some Duration calculations to
have unnecessary rounding errors.  1e9 does not, so use that instead.

Change-Id: I96334a2c47e7a014b532eb4b8a3ef9550e7ed057
Reviewed-on: https://go-review.googlesource.com/33116
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Change-Id: I6e24d22eada190e9aa2adc161be7a753c8e5054b
Reviewed-on: https://go-review.googlesource.com/31514
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>

Many linux distros distribute Chromium instead of Chrome.

Change-Id: I5474d94da28a7c79bdd7181f77472d4ce73bb225
Reviewed-on: https://go-review.googlesource.com/29293Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

The tree is inconsistent about single l vs double l in those
words in documentation, test messages, and one error value text.

	$ git grep -E '[Mm]arshall(|s|er|ers|ed|ing)' | wc -l
	      42
	$ git grep -E '[Mm]arshal(|s|er|ers|ed|ing)' | wc -l
	    1694

Make it consistently a single l, per earlier decisions. This means
contributors won't be confused by misleading precedence, and it helps
consistency.

Change the spelling in one error value text in newRawAttributes of
crypto/x509 package to be consistent.

This change was generated with:

	perl -i -npe 's,([Mm]arshal)l(|s|er|ers|ed|ing),$1$2,' $(git grep -l -E '[Mm]arshall' | grep -v AUTHORS | grep -v CONTRIBUTORS)

Updates #12431.
Follows https://golang.org/cl/14150.

Change-Id: I85d28a2d7692862ccb02d6a09f5d18538b6049a2
Reviewed-on: https://go-review.googlesource.com/33017
Run-TryBot: Minux Ma <minux@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

And rename it.

Fixes #17703

Change-Id: I73c82a9b3f96180699c6d33c069a666018eb30f9
Reviewed-on: https://go-review.googlesource.com/33149
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

pkg-config 0.24 adds support for quoting and escaping whitespace;
distros like CentOS 6 are still shipping pkg-config 0.23. Skip the test
there since there's no way to get whitespace into the pkg-config output.

Fixes #17846.

Change-Id: Ie4ea17e9b709372a20178b539498929754bcd51f
Reviewed-on: https://go-review.googlesource.com/33027
Run-TryBot: Quentin Smith <quentin@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>

Fixes #17720

Change-Id: Ib95c230deef3934db729856c17908f8e5a1e2b7f
Reviewed-on: https://go-review.googlesource.com/33145
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Rob Pike <r@golang.org>

When a Go program crashes with GOTRACEBACK=crash, the OS creates a
core dump. Include the text-formatted output of some of the cause of
that crash in the core dump.

Output printed by the runtime before crashing is maintained in a
circular buffer to allow access to messages that may be printed
immediately before calling runtime.throw.

The stack traces printed by the runtime as it crashes are not stored.
The information required to recreate them should be included in the
core file.

Updates #16893

There are no tests covering the generation of core dumps; this change
has not added any.

This adds (reentrant) locking to runtime.gwrite, which may have an
undesired performance impact.

Change-Id: Ia2463be3c12429354d290bdec5f3c8d565d1a2c3
Reviewed-on: https://go-review.googlesource.com/32013
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>

Users can implement the smtp.Auth interface and return zero bytes in
the "toServer []byte" return value from the Auth.Start method. People
apparently do this to implement the SMTP "LOGIN" method.

But we were then sending "AUTH LOGIN \r\n" to the server, which some
servers apparently choke on. So, trim it when the toServer value is
empty.

Fixes #17794

Change-Id: I83662dba9e0f61b1c5000396c096cf7110f78361
Reviewed-on: https://go-review.googlesource.com/33143
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>