Commit Graph

40915 Commits

Author SHA1 Message Date
Keith Randall 5ebdfd905d [release-branch.go1.13] cmd/compile: don't addLocalInductiveFacts if there is no direct edge from if block to phi block
Currently in addLocalInductiveFacts, we only check whether
direct edge from if block to phi block exists. If not, the
following logic will treat the phi block as the first successor,
which is wrong.

This patch makes prove pass more conservative, so we disable
some cases in test/prove.go. We will do some optimization in
the following CL and enable these cases then.

Fixes #40500.

Change-Id: I27cf0248f3a82312a6f7dabe11c79a1a34cf5412
Reviewed-on: https://go-review.googlesource.com/c/go/+/244579
Reviewed-by: Zach Jones <zachj1@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-on: https://go-review.googlesource.com/c/go/+/245957
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
2020-08-03 15:12:57 +00:00
Andrew Bonventre d3ba94164a [release-branch.go1.13] go1.13.14
Change-Id: Id54fd93e1839c28e40e9fcdaa5e7304dae274565
Reviewed-on: https://go-review.googlesource.com/c/go/+/243139
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2020-07-16 22:23:43 +00:00
Emmanuel T Odeke 42e7927c5f [release-branch.go1.13] database/sql: backport 5 Tx rollback related CLs
Manually backported the subject CLs, because of lack of
Gerrit "forge-author" permissions, but also because the prior
cherry picks didn't apply cleanly, due to a tight relation chain.

The backport comprises of:
* CL 174122
* CL 216197
* CL 223963
* CL 216240
* CL 216241

Note:
Due to the restrictions that we cannot retroactively
introduce API changes to Go1.13.13 that weren't in Go1.13, the Conn.Validator
interface (from CL 174122, CL 223963) isn't exposed, and drivers will just be
inspected, for if they have an IsValid() bool method implemented.

For a description of the content of each CL:

* CL 174122:
database/sql: process all Session Resets synchronously

Adds a new interface, driver.ConnectionValidator, to allow
drivers to signal they should not be used again,
separatly from the session resetter interface.
This is done now that the session reset is done
after the connection is put into the connection pool.

Previous behavior attempted to run Session Resets
in a background worker. This implementation had two
problems: untested performance gains for additional
complexity, and failures when the pool size
exceeded the connection reset channel buffer size.

* CL 216197:
database/sql: check conn expiry when returning to pool, not when handing it out

With the original connection reuse strategy, it was possible that
when a new connection was requested, the pool would wait for an
an existing connection to return for re-use in a full connection
pool, and then it would check if the returned connection was expired.
If the returned connection expired while awaiting re-use, it would
return an error to the location requestiong the new connection.
The existing call sites requesting a new connection was often the last
attempt at returning a connection for a query. This would then
result in a failed query.

This change ensures that we perform the expiry check right
before a connection is inserted back in to the connection pool
for while requesting a new connection. If requesting a new connection
it will no longer fail due to the connection expiring.

* CL 216240:
database/sql: prevent Tx statement from committing after rollback

It was possible for a Tx that was aborted for rollback
asynchronously to execute a query after the rollback had completed
on the database, which often would auto commit the query outside
of the transaction.

By W-locking the tx.closemu prior to issuing the rollback
connection it ensures any Tx query either fails or finishes
on the Tx, and never after the Tx has rolled back.

* CL 216241:
database/sql: on Tx rollback, retain connection if driver can reset session

Previously the Tx would drop the connection after rolling back from
a context cancel. Now if the driver can reset the session,
keep the connection.

* CL 223963
database/sql: add test for Conn.Validator interface

This addresses comments made by Russ after
https://golang.org/cl/174122 was merged. It addes a test
for the connection validator and renames the interface to just
"Validator".

Updates #31480
Updates #32530
Updates #32942
Updates #34775
Fixes #40205

Change-Id: I6d7307180b0db0bf159130d91161764cf0f18b58
Reviewed-on: https://go-review.googlesource.com/c/go/+/242522
Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Daniel Theophanes <kardianos@gmail.com>
2020-07-16 00:34:33 +00:00
Katie Hockman 6e1b89a431 [release-branch.go1.13] all: merge release-branch.go1.13-security into release-branch.go1.13
Change-Id: Id0cca0e1006d92960e7f665d41111483c0fcea13
2020-07-14 14:39:38 -04:00
Andrew Bonventre 1f8859c22c [release-branch.go1.13-security] go1.13.13
Change-Id: I65f5d9cc1363d369ced4496c1d6d3d7f9144f1b8
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/794127
Reviewed-by: Katie Hockman <katiehockman@google.com>
2020-07-14 14:10:10 +00:00
Filippo Valsorda 4a4c8d3d97 [release-branch.go1.13-security] crypto/x509: respect VerifyOptions.KeyUsages on Windows
When using the platform verifier on Windows (because Roots is nil) we
were always enforcing server auth EKUs if DNSName was set, and none
otherwise. If an application was setting KeyUsages, they were not being
respected.

Started correctly surfacing IncompatibleUsage errors from the system
verifier, as those are the ones applications will see if they are
affected by this change.

Also refactored verify_test.go to make it easier to add tests for this,
and replaced the EKULeaf chain with a new one that doesn't have a SHA-1
signature.

Thanks to Niall Newman for reporting this.

Fixes #39360
Fixes CVE-2020-14039

Change-Id: If5c00d615f2944f7d57007891aae1307f9571c32
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/774414
Reviewed-by: Katie Hockman <katiehockman@google.com>
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/793509
Reviewed-by: Filippo Valsorda <valsorda@google.com>
2020-07-14 12:23:08 +00:00
Russ Cox e434185ec1 [release-branch.go1.13-security] net/http: synchronize "100 Continue" write and Handler writes
The expectContinueReader writes to the connection on the first
Request.Body read. Since a Handler might be doing a read in parallel or
before a write, expectContinueReader needs to synchronize with the
ResponseWriter, and abort if a response already went out.

The tests will land in a separate CL.

Fixes #34902
Fixes CVE-2020-15586

Change-Id: Icdd8dd539f45e8863762bd378194bb4741e875fc
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/793350
Reviewed-by: Filippo Valsorda <valsorda@google.com>
(cherry picked from commit b5e504f4a07c572744b228fa1b10e3989c4c44f3)
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/793499
2020-07-13 20:57:52 +00:00
Marcus Weiner e19af0f144 [release-branch.go1.13] net/http: fix panic with If-None-Match value in http.ServeContent
Updates #39817.
Fixes #39925.

Change-Id: I79f2ad7c836a8a46569f603aca583fdd526d22dc
GitHub-Last-Rev: 5b88aada21
GitHub-Pull-Request: golang/go#39821
Reviewed-on: https://go-review.googlesource.com/c/go/+/239699
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
(cherry picked from commit ce81a8f5e4)
Reviewed-on: https://go-review.googlesource.com/c/go/+/242077
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Marcus Weiner <marcus.weiner@gmail.com>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
2020-07-13 18:33:23 +00:00
Keith Randall 3c1722cf30 [release-branch.go1.13] reflect: zero stack slots before writing to them with write barriers
reflect.assignTo writes to the target using write barriers. Make sure
that the memory it is writing to is zeroed, so the write barrier does
not read pointers from uninitialized memory.

Fixes #39697

Change-Id: Ia64b2cacc193bffd0c1396bbce1dfb8182d4905b
Reviewed-on: https://go-review.googlesource.com/c/go/+/238760
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
(cherry picked from commit 3dec253783)
Reviewed-on: https://go-review.googlesource.com/c/go/+/238862
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
2020-07-11 02:49:54 +00:00
Keith Randall 0b75fc7a92 [release-branch.go1.13] cmd/compile: remove check that Zero's arg has the correct base type
It doesn't have to. The type in the aux field is authoritative.
There are cases involving casting from interface{} where pointers
have a placeholder pointer type (because the type is not known when
the IData op is generated).

The check was introduced in CL 13447.

Fixes #39848

Change-Id: Id77a57577806a271aeebd20bea5d92d08ee7aa6b
Reviewed-on: https://go-review.googlesource.com/c/go/+/239817
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
(cherry picked from commit 3b2f67a597)
Reviewed-on: https://go-review.googlesource.com/c/go/+/239998
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
2020-07-10 22:19:31 +00:00
Michael Matloob 82c1a8705b [release-branch.go1.13] cmd/go: convert TestBuildIDContainsArchModeEnv to the script framework
Part of converting all tests to script framework to improve
test parallelism.

Fixes #39823
Updates #36320
Updates #17751

Change-Id: I69c69809fb1698c8198ef3ea00103a9acb7b6ce7
Reviewed-on: https://go-review.googlesource.com/c/go/+/214387
Run-TryBot: Michael Matloob <matloob@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
(cherry picked from CL 214387)
Reviewed-on: https://go-review.googlesource.com/c/go/+/239777
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>
2020-06-29 20:51:55 +00:00
Dmitri Shuralyov 206ee872d1 [release-branch.go1.13] cmd: update golang.org/x/tools to v0.0.0-20200615191743-991d59a616de
This teaches vet to recognize the new formats %#b and %O on integers,
%x on float/complex. They have been supported since the 1.13 release,
but vet would warn about it.

Also update cmd/vet testdata accordingly, as was done in CL 202083.

Fixes #39287.
For #29986.

Change-Id: Ia7817ee60ae6beac32cc402c0c68afa917e4ef0f
Reviewed-on: https://go-review.googlesource.com/c/go/+/238018
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-06-15 22:36:22 +00:00
Ian Lance Taylor 7e87a63ed6 [release-branch.go1.13] net: add more timing slop for TestDialParallel on Windows
For #35616.
Fixes #39538.
For #29252.

Change-Id: I51b2490100cfe0e902da09eee8d027e0ec86ed53
Reviewed-on: https://go-review.googlesource.com/c/go/+/207466
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
(cherry picked from commit c20b71eb37)
Reviewed-on: https://go-review.googlesource.com/c/go/+/237602
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Alexander Rakoczy <alex@golang.org>
2020-06-12 18:58:35 +00:00
Dmitri Shuralyov 034ed8089d [release-branch.go1.13] cmd/compile/internal/ssa: skip TestNexting with old Delve on linux/386
Support for linux/386 was added to Delve in version 1.4.1, but the
version of Delve currently installed on the linux-386-longtest
builder is 1.2.0. That isn't new enough, which causes the test
to fail. Skip it on that builder until it can be made to work.

The only reason it used to pass on the linux-386-longtest builder
before is because that builder was misconfigured to run tests for
linux/amd64. This was resolved in CL 234520.

Also improve internal documentation and the text of skip reasons.

For #39309.
Fixes #39561.

Change-Id: I395cb1f076e59dd3a3feb53e1dcdce5101e9a0f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/237617
Reviewed-by: David Chase <drchase@google.com>
2020-06-12 18:56:48 +00:00
Dmitri Shuralyov 6be4a5eb48 [release-branch.go1.13] go1.13.12
Change-Id: I1989d7cab0bf75c4e42d1c48146be9131d2c105c
Reviewed-on: https://go-review.googlesource.com/c/go/+/235918
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2020-06-01 19:34:58 +00:00
Robert Griesemer 90fe4a73ff [release-branch.go1.13] math/big: make Rat.Denom side-effect free
A Rat is represented via a quotient a/b where a and b are Int values.
To make it possible to use an uninitialized Rat value (with a and b
uninitialized and thus == 0), the implementation treats a 0 denominator
as 1.

Rat.Num and Rat.Denom return pointers to these values a and b. Because
b may be 0, Rat.Denom used to first initialize it to 1 and thus produce
an undesirable side-effect (by changing the Rat's denominator).

This CL changes Denom to return a new (not shared) *Int with value 1
in the rare case where the Rat was not initialized. This eliminates
the side effect and returns the correct denominator value.

While this is changing behavior of the API, the impact should now be
minor because together with (prior) CL https://golang.org/cl/202997,
which initializes Rats ASAP, Denom is unlikely used to access the
denominator of an uninitialized (and thus 0) Rat. Any operation that
will somehow set a Rat value will ensure that the denominator is not 0.

Fixes #36689.
For #33792.
For #3521.

Change-Id: I0bf15ac60513cf52162bfb62440817ba36f0c3fc
Reviewed-on: https://go-review.googlesource.com/c/go/+/203059
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-on: https://go-review.googlesource.com/c/go/+/233323
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
2020-05-27 22:53:26 +00:00
Robert Griesemer 7f1ef49347 [release-branch.go1.13] math/big: normalize unitialized denominators ASAP
A Rat is represented via a quotient a/b where a and b are Int values.
To make it possible to use an uninitialized Rat value (with a and b
uninitialized and thus == 0), the implementation treats a 0 denominator
as 1.

For each operation we check if the denominator is 0, and then treat
it as 1 (if necessary). Operations that create a new Rat result,
normalize that value such that a result denominator 1 is represened
as 0 again.

This CL changes this behavior slightly: 0 denominators are still
interpreted as 1, but whenever we (safely) can, we set an uninitialized
0 denominator to 1. This simplifies the code overall.

Also: Improved some doc strings.

Preparation for addressing issue #33792.

For #36689.
For #33792.

Change-Id: I3040587c8d0dad2e840022f96ca027d8470878a0
Reviewed-on: https://go-review.googlesource.com/c/go/+/202997
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-on: https://go-review.googlesource.com/c/go/+/233322
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
2020-05-27 22:52:28 +00:00
Robert Griesemer 444ad952c4 [release-branch.go1.13] math/big: make Rat accessors safe for concurrent use
Do not modify the underlying Rat denominator when calling
one of the accessors Float32, Float64; verify that we don't
modify the Rat denominator when calling Inv, Sign, IsInt, Num.

For #36689.
For #34919.
For #33792.

Change-Id: Ife6d1252373f493a597398ee51e7b5695b708df5
Reviewed-on: https://go-review.googlesource.com/c/go/+/201205
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/c/go/+/233321
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
2020-05-27 22:52:06 +00:00
Michael Pratt 1a1178122f [release-branch.go1.13] runtime: disable preemption in startTemplateThread
When a locked M wants to start a new M, it hands off to the template
thread to actually call clone and start the thread. The template thread
is lazily created the first time a thread is locked (or if cgo is in
use).

stoplockedm will release the P (_Pidle), then call handoffp to give the
P to another M. In the case of a pending STW, one of two things can
happen:

1. handoffp starts an M, which does acquirep followed by schedule, which
will finally enter _Pgcstop.

2. handoffp immediately enters _Pgcstop. This only occurs if the P has
no local work, GC work, and no spinning M is required.

If handoffp starts an M, and must create a new M to do so, then newm
will simply queue the M on newmHandoff for the template thread to do the
clone.

When a stop-the-world is required, stopTheWorldWithSema will start the
stop and then wait for all Ps to enter _Pgcstop. If the template thread
is not fully created because startTemplateThread gets stopped, then
another stoplockedm may queue an M that will never get created, and the
handoff P will never leave _Pidle. Thus stopTheWorldWithSema will wait
forever.

A sequence to trigger this hang when STW occurs can be visualized with
two threads:

  T1                                 T2
-------------------------------   -----------------------------

LockOSThread                      LockOSThread
  haveTemplateThread == 0
  startTemplateThread
    haveTemplateThread = 1
    newm                            haveTemplateThread == 1
      preempt -> schedule           g.m.lockedExt++
        gcstopm -> _Pgcstop         g.m.lockedg = ...
        park                        g.lockedm = ...
                                    return

                                 ... (any code)
                                   preempt -> schedule
                                     stoplockedm
                                       releasep -> _Pidle
                                       handoffp
                                         startm (first 3 handoffp cases)
                                          newm
                                            g.m.lockedExt != 0
                                            Add to newmHandoff, return
                                       park

Note that the P in T2 is stuck sitting in _Pidle. Since the template
thread isn't running, the new M will not be started complete the
transition to _Pgcstop.

To resolve this, we disable preemption around the assignment of
haveTemplateThread and the creation of the template thread in order to
guarantee that if handTemplateThread is set then the template thread
will eventually exist, in the presence of stops.

For #38931
Fixes #38932

Change-Id: I50535fbbe2f328f47b18e24d9030136719274191
Reviewed-on: https://go-review.googlesource.com/c/go/+/232978
Run-TryBot: Michael Pratt <mpratt@google.com>
Reviewed-by: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
(cherry picked from commit 11b3730a02)
Reviewed-on: https://go-review.googlesource.com/c/go/+/234888
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-05-27 17:55:05 +00:00
Andrew Bonventre 237b6067c1 [release-branch.go1.13] go1.13.11
Change-Id: I6fb5fbb3caf64e7d33412be4893edf8564e3a4de
Reviewed-on: https://go-review.googlesource.com/c/go/+/234001
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2020-05-14 19:18:42 +00:00
Michael Munday 6b974e2bd3 [release-branch.go1.13] cmd/compile: fix deallocation of live value copies in regalloc
When deallocating the input register to a phi so that the phi
itself could be allocated to that register the code was also
deallocating all copies of that phi input value. Those copies
of the value could still be live and if they were the register
allocator could reuse them incorrectly to hold speculative
copies of other phi inputs. This causes strange bugs.

No test because this is a very obscure scenario that is hard
to replicate but CL 228060 adds an assertion to the compiler
that does trigger when running the std tests on linux/s390x
without this CL applied. Hopefully that assertion will prevent
future regressions.

Fixes #38442.

Change-Id: Id975dadedd731c7bb21933b9ea6b17daaa5c9e1d
Reviewed-on: https://go-review.googlesource.com/c/go/+/228061
Run-TryBot: Michael Munday <mike.munday@ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
(cherry picked from commit 382fe3e249)
Reviewed-on: https://go-review.googlesource.com/c/go/+/230358
2020-04-28 16:29:29 +00:00
Andrew Bonventre a57f07aac2 [release-branch.go1.13] go1.13.10
Change-Id: I1ed1bc6652724d2e365f89de802c79ecc5c2660d
Reviewed-on: https://go-review.googlesource.com/c/go/+/227639
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alexander Rakoczy <alex@golang.org>
2020-04-08 19:09:06 +00:00
Austin Clements 3a275aab75 [release-branch.go1.13] runtime: fix rounding in materializeGCProg
materializeGCProg allocates a temporary buffer for unrolling a GC
program. Unfortunately, when computing the size of the buffer, it
rounds *down* the number of bytes needed to store bitmap before
rounding up the number of pages needed to store those bytes. The fact
that it rounds up to pages usually mitigates the rounding down, but
the type from #37470 exists right on the boundary where this doesn't
work:

type Sequencer struct {
	htable [1 << 17]uint32
	buf    []byte
}

On 64-bit, this GC bitmap is exactly 8 KiB of zeros, followed by three
one bits. Hence, this needs 8193 bytes of storage, but the current
math in materializeGCProg rounds *down* the three one bits to 8192
bytes. Since this is exactly pageSize, the next step of rounding up to
the page size doesn't mitigate this error, and materializeGCProg
allocates a buffer that is one byte too small. runGCProg then writes
one byte past the end of this buffer, causing either a segfault (if
you're lucky!) or memory corruption.

Updates #37470.
Fixes #37483.

Change-Id: Iad24c463c501cd9b1dc1924bc2ad007991a094a0
Reviewed-on: https://go-review.googlesource.com/c/go/+/224418
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-04-07 20:06:38 +00:00
Jay Conrod 2f6dd92c1e [release-branch.go1.13] cmd/go: make module zip extraction more robust
Currently, we extract module zip files to temporary directories, then
atomically rename them into place. On Windows, this can fail with
ERROR_ACCESS_DENIED if another process (antivirus) has files open
before the rename. In CL 220978, we repeated the rename operation in a
loop over 500 ms, but this didn't solve the problem for everyone.

A better solution will extract module zip files to their permanent
locations in the cache and will keep a ".partial" marker file,
indicating when a module hasn't been fully extracted (CL 221157).
This approach is not safe if current versions of Go access the module
cache concurrently, since the module directory is detected with a
single os.Stat.

In the interim, this CL makes two changes:

1. Flaky file system operations are repeated over 2000 ms to reduce
the chance of this error occurring.
2. cmd/go will now check for .partial files created by future
versions. If a .partial file is found, it will lock the lock file,
then remove the .partial file and directory if needed.

After some time has passed and Go versions lacking this CL are no
longer supported, we can start extracting module zip files in place.

Updates #37802

Change-Id: I467ee11aa59a90b63cf0e3e761c4fec89d57d3b6
Reviewed-on: https://go-review.googlesource.com/c/go/+/221820
Run-TryBot: Jay Conrod <jayconrod@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
(cherry picked from commit 093049b370)
Reviewed-on: https://go-review.googlesource.com/c/go/+/223146
2020-04-07 20:06:16 +00:00
Carlos Eduardo Seo b79c36dc99 [release-branch.go1.13] runtime: fix wrong offset when calling ppc64x nanotime syscall
There is a wrong offset when getting the results of a clock_gettime
syscall. Although the syscall will never be called in native ppc64x,
QEMU doesn't implement VDSO, so it will return wrong values.

For #36592
Fixes #38236

Change-Id: Icf838075228dcdd62cf2c1279aa983e5993d66ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/215397
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
(cherry picked from commit 71239b4f49)
Reviewed-on: https://go-review.googlesource.com/c/go/+/227179
Reviewed-by: Carlos Eduardo Seo <cseo@linux.vnet.ibm.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-04-03 22:09:47 +00:00
Dmitri Shuralyov 9ed3fb84bc [release-branch.go1.13] cmd/go: fix and skip known Windows test failures
These non-short Windows test failures were resolved fully in CL 206144.

Both TestScript/build_trimpath and TestScript/version tests can be fixed
by backporting the changes to test scripts only, so that is done here.

Fixing TestScript/mod_list_dir requires backporting non-test changes in
addition to the test script changes, which is unlikely to be appropriate
this late in Go 1.13 release cycle. A failing test can cover up other
regressions, so skip this known failing test to fix the builder.

For #36181.

Change-Id: I4f140bd373554eb4664f04638666dee77986ec3e
Reviewed-on: https://go-review.googlesource.com/c/go/+/223782
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2020-03-31 23:11:12 +00:00
Dmitri Shuralyov c67f9cc6c0 [release-branch.go1.13] cmd/doc: skip failing TestDotSlashLookup on Windows
This test was fixed by changing cmd/doc behavior in CL 204442.

Backporting that non-test code change is unlikely to be appropriate
this late in Go 1.13 release cycle. A failing test can cover up other
regressions, so skip this known failing test to fix the builder.

For #35236.
For #36181.

Change-Id: I07e795e75d7e37bc96ab68607d5d5cc9254342f8
Reviewed-on: https://go-review.googlesource.com/c/go/+/223780
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Alexander Rakoczy <alex@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>
2020-03-31 23:07:59 +00:00
Robert Griesemer 5a31a971f3 [release-branch.go1.13] cmd/compile/internal/syntax: don't hardwire path separator in test
Windows uses '\' not '/'.

For #35175.
Fixes #37901.

Change-Id: Ib3d01dcf148fc0675496d5213f5bcc9cf210a6fc
Reviewed-on: https://go-review.googlesource.com/c/go/+/203889
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
(cherry picked from commit a754d2993d)
Reviewed-on: https://go-review.googlesource.com/c/go/+/223703
Reviewed-by: Robert Griesemer <gri@golang.org>
Run-TryBot: Andrew Bonventre <andybons@golang.org>
2020-03-31 23:07:15 +00:00
Bryan C. Mills f353662952 [release-branch.go1.13] os: use an actual RemoveAll failure in TestRemoveAllWithMoreErrorThanReqSize
Previously we injected an error, and the injection points were
(empirically) not realistic on some platforms.

Instead, we now make the directory read-only, which (on most
platforms) suffices to prevent the removal of its files.

Also remove unused test hook, as was done in CL 204060.

For #35117.
For #29921.
Fixes #37895.

Change-Id: Ica4e2818566f8c14df3eed7c3b8de5c0abeb6963
Reviewed-on: https://go-review.googlesource.com/c/go/+/203502
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
(cherry picked from commit 06bdd52f75)
Reviewed-on: https://go-review.googlesource.com/c/go/+/223700
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Alexander Rakoczy <alex@golang.org>
2020-03-31 23:05:42 +00:00
Constantin Konstantinidis 7261619113 [release-branch.go1.13] net/http: deflake TestCancelRequestWithChannelBeforeDo_Cancel
Goroutines clean up takes longer when using deprecated CloseNotifier.

For #35122.
Fixes #37892.

Change-Id: Id820a3012b5c781ddfb294b38ee3b009624e398c
Reviewed-on: https://go-review.googlesource.com/c/go/+/204661
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
(cherry picked from commit 1e4a358454)
Reviewed-on: https://go-review.googlesource.com/c/go/+/223699
Run-TryBot: Alexander Rakoczy <alex@golang.org>
Reviewed-by: Alexander Rakoczy <alex@golang.org>
2020-03-31 23:01:29 +00:00
Liam 'Auzzie' Haworth 6fcea1e380 [release-branch.go1.13] os/exec: use environment variables for user token when present
Builds upon the changes from #32000 which supported sourcing environment
variables for a new process from the environment of a Windows user token
when supplied.

But due to the logic of os/exec, the Env field of a process was
always non-nil when it reached that change.

This change moves the logic up to os/exec, specifically when
os.ProcAttr is being built for the os.StartProcess call, this
ensures that if a user token has been supplied and no Env slice has
been provided on the command it will be sourced from the user's
environment.

If no token is provided, or the program is compiled for any other
platform than Windows, the default environment will be sourced from
syscall.Environ().

For #35314
Fixes #37433

Change-Id: I4c1722e90b91945eb6980d5c5928183269b50487
GitHub-Last-Rev: 32216b7291
GitHub-Pull-Request: golang/go#37402
Reviewed-on: https://go-review.googlesource.com/c/go/+/220587
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/c/go/+/226280
2020-03-29 17:14:39 +00:00
Bryan C. Mills b2797dc873 [release-branch.go1.13] cmd/go: do not append to the global cfg.OrigEnv slice
Appending to a global slice is only safe if its length is already
equal to its capacity. That property is not guaranteed for slices in
general, and empirically does not hold for this one.

This is a minimal fix to make it easier to backport.
A more robust cleanup of the base.EnvForDir function will be sent in a
subsequent CL.

Fixes #38082
Updates #38077

Change-Id: I731d5bbd0e516642c2cf43e713eeea15402604e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/225577
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
(cherry picked from commit bfb1342a40)
Reviewed-on: https://go-review.googlesource.com/c/go/+/225660
2020-03-26 21:10:41 +00:00
Alex Brainman d6224d3807 [release-branch.go1.13] runtime: ignore error returned by PowerRegisterSuspendResumeNotification
It appears that PowerRegisterSuspendResumeNotification is not supported
when running inside Docker - see issues #35447, #36557 and #37149.

Our current code relies on error number to determine Docker environment.
But we already saw PowerRegisterSuspendResumeNotification return
ERROR_FILE_NOT_FOUND, ERROR_INVALID_PARAMETERS and ERROR_ACCESS_DENIED
(see issues above). So this approach is not sustainable.

Just ignore PowerRegisterSuspendResumeNotification returned error.

For #37149
Fixes #37230

Change-Id: I2beba9d45cdb8c1efac5e974e747827a6261915a
Reviewed-on: https://go-review.googlesource.com/c/go/+/219657
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
(cherry picked from commit d467f3bbc9)
Reviewed-on: https://go-review.googlesource.com/c/go/+/224585
Run-TryBot: Ian Lance Taylor <iant@golang.org>
2020-03-25 20:42:17 +00:00
Carlos Amedee 33554bc6af [release-branch.go1.13] go1.13.9
Change-Id: Ia0ad75ee0458df95f1e4e36cd440f4cb314c67cb
Reviewed-on: https://go-review.googlesource.com/c/go/+/223940
Run-TryBot: Carlos Amedee <carlos@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alexander Rakoczy <alex@golang.org>
2020-03-19 15:17:09 +00:00
Jason A. Donenfeld 1a1b02aca1 [release-branch.go1.13] internal/syscall/windows/registry: remove TestWalkFullRegistry due to false assumptions
This test's existence was predicated upon assumptions about the full
range of known data types and known data into those types. However,
we've learned from Microsoft that there are several undocumented secret
registry types that are in use by various parts of Windows, and we've
learned from inspection that many Microsoft uses of registry types don't
strictly adhere to the recommended value size. It's therefore foolhardy
to make any assumptions about what goes in and out of the registry, and
so this test, as well as its "blacklist", are meaningless.

For #35084.
Fixes #37826.

Change-Id: I6c3fe5fb0e740e88858321b3b042c0ff1a23284e
Reviewed-on: https://go-review.googlesource.com/c/go/+/203604
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
(cherry picked from commit 0d3092ffa7)
Reviewed-on: https://go-review.googlesource.com/c/go/+/223237
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Alexander Rakoczy <alex@golang.org>
2020-03-12 21:49:10 +00:00
Bryan C. Mills e0f244d532 [release-branch.go1.13] cmd/go: include the go language version in cache keys
Fixes #37821
Updates #37804

Change-Id: I4381dc5c58cfd467506d3d73fbd19c2c7257338e
Reviewed-on: https://go-review.googlesource.com/c/go/+/223139
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
(cherry picked from commit c95708462f)
Reviewed-on: https://go-review.googlesource.com/c/go/+/223142
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2020-03-12 15:40:55 +00:00
Hana (Hyang-Ah) Kim 830b4f4075 [release-branch.go1.13] cmd/trace: update to use WebComponents V0 polyfill
Old trace viewer stopped working with Chrome M80+ because the
old trace viewer heavily depended on WebComponents V0 which are deprecated.
Trace viewer recently migrated to use WebComponents V0 polyfill
(crbug.com/1036492). This CL brings in the newly updated trace_viewer_full.html
(sync'd @ 9508452e)
and updates the javascript snippet included in the /trace endpoint
to use the polyfill.

This brings in webcomponents.min.js copied from
https://chromium.googlesource.com/catapult/+/9508452e18f130c98499cb4c4f1e1efaedee8962/third_party/polymer/components/webcomponentsjs/webcomponents.min.js

That is necessary because the /trace endpoint needs to import
the vulcanized trace_viewer_full.html.

It's possible that some features are not working correctly with
this polyfill. In that case, report the issue to crbug.com/1036492.
There will be a warning message in the UI (yellow banner above the timeline)
which can be hidden by clicking the 'hide' button.

This allows to render the trace in browsers other than chrome in theory,
but I observed some buttons and functions still don't work outside
chrome.

Updates #34374.
Fixes #37342.

Change-Id: Ib575f756f5e6b22ad904ede6e4d224a995ebe259
Reviewed-on: https://go-review.googlesource.com/c/go/+/219997
Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
(cherry picked from commit 75ea964b3f)
Reviewed-on: https://go-review.googlesource.com/c/go/+/220321
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
2020-03-02 22:34:12 +00:00
Jay Conrod b27bda0365 [release-branch.go1.13] cmd/go: fix cgo test when min macOS version is set
Regression tests for #24161 use a macro to conditionally compile some
stub definitions. The macro tests that the minimum macOS version is
less than 10.12.

We get duplicate definitions when building this test with
CGO_CFLAGS=-mmacosx-version-min=10.x where 10.x < 10.12. With this
change, we use a different macro, __MAC_OS_X_VERSION_MAX_ALLOWED__,
which tests the SDK version instead of the minimum macOS version. This
checks whether these definitions are present in headers.

After this change, 'go tool dist test cgo_test' should pass with
CGO_FLAGS=-mmacosx-version-min=10.10.

Updates #36846
Updates #35459

Change-Id: I88d63601c94b0369c73c38d216a2d41ba7d4e579
Reviewed-on: https://go-review.googlesource.com/c/go/+/216243
Run-TryBot: Jay Conrod <jayconrod@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
(cherry picked from commit 1f9f88b95e)
Reviewed-on: https://go-review.googlesource.com/c/go/+/217059
Run-TryBot: Carlos Amedee <carlos@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2020-02-26 17:04:41 +00:00
Jay Conrod 20a2e0a584 [release-branch.go1.13] cmd/go: add -d flag to mod_get_test
'go get all' was run in this test without -d. This caused some std
packages to be reinstalled if the test is run in a slightly different
configuration than make.bash was run. run.bash would fail in some
situations because of this. Nothing in the cmd/go tests should modify
installed std or cmd packages.

Updates #36846
Updates #35459

Change-Id: Idd259a27d55502923b7fc54f361a77f0ac11eea2
Reviewed-on: https://go-review.googlesource.com/c/go/+/215721
Run-TryBot: Jay Conrod <jayconrod@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
(cherry picked from commit 71bbffbc48)
Reviewed-on: https://go-review.googlesource.com/c/go/+/218597
Run-TryBot: Carlos Amedee <carlos@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2020-02-26 17:04:28 +00:00
Carlos Amedee 0e115a3266 [release-branch.go1.13] cmd/link: ensure cgo cflags do not leak into dwarf tests
Running the dwarf tests with CGO_CFLAGS set
with certain values would cause the test to fail. all.bash
would fail when CGO_CFLAGS was set to '-mmacosx-version-min=10.10'
because the --macosx-version-min flag is incompatible with some dwarf
tests. The change guards against using an unintended flag in the unit test.

Updates #36846
Updates #35459

Change-Id: Idc9b354aba44fdab424cb0081a4b3ea7a6d0f8e3
Reviewed-on: https://go-review.googlesource.com/c/go/+/216177
Run-TryBot: Carlos Amedee <carlos@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
(cherry picked from commit e948d2b73e)
Reviewed-on: https://go-review.googlesource.com/c/go/+/217057
2020-02-26 17:04:18 +00:00
Carlos Amedee 4169b1ea15 [release-branch.go1.13] cmd/link: ensure cgo cflags do not leak into tvOS test
Running the 'TestBuildForTvOS' test with CGO_CFLAGS set
with certain values would cause the test to fail. all.bash
would fail when CGO_CFLAGS was set to '-mmacosx-version-min=10.10'
because the --macosx-version-min flag is incompatible with tvOS.
The change guards against using an unintended flag in the unit test.

Updates #36846
Updated #35459

Change-Id: Ifc43f3ebfb23d37aabeaac2ea9efae5b877991bf
Reviewed-on: https://go-review.googlesource.com/c/go/+/215957
Run-TryBot: Carlos Amedee <carlos@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
(cherry picked from commit ace25f82df)
Reviewed-on: https://go-review.googlesource.com/c/go/+/218598
2020-02-26 17:04:05 +00:00
Katie Hockman 6f57b10549 [release-branch.go1.13] crypto/cipher: require non-zero nonce size for AES-GCM
Also fix typo in crypto/cipher/gcm_test.go.

Updates #37118
Fixes #37417

Change-Id: I8544d1eeeb1f0336cebb977b8c5bfa5e4c5ad8c7
Reviewed-on: https://go-review.googlesource.com/c/go/+/218500
Run-TryBot: Katie Hockman <katie@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
(cherry picked from commit 4e8badbbc2)
Reviewed-on: https://go-review.googlesource.com/c/go/+/220653
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2020-02-26 15:49:20 +00:00
Alexander Rakoczy a7acf9af07 [release-branch.go1.13] go1.13.8
Change-Id: Ia174ccd8d5c26f44aeea188113e292f5048ec873
Reviewed-on: https://go-review.googlesource.com/c/go/+/219219
Run-TryBot: Alexander Rakoczy <alex@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>
2020-02-12 19:55:45 +00:00
Michael Fraenkel 224a180deb [release-branch.go1.13] net/http: only decrement connection count if we removed a connection
The connection count must only be decremented if the persistent
connection was also removed.

Fixes #36583

Change-Id: I5070717d5d9effec78016005fa4910593500c8cf
Reviewed-on: https://go-review.googlesource.com/c/go/+/202087
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-on: https://go-review.googlesource.com/c/go/+/215177
Run-TryBot: Alexander Rakoczy <alex@golang.org>
Reviewed-by: Alexander Rakoczy <alex@golang.org>
2020-02-11 17:47:12 +00:00
Katie Hockman 17ac3f6348 [release-branch.go1.13] crypto/x509: fix godoc for MarshalPKCS8PrivateKey
Updates #36735
Fixes #37067

Change-Id: I93f005d78f4bfac773272995b165172461bae92f
Reviewed-on: https://go-review.googlesource.com/c/go/+/217917
Run-TryBot: Katie Hockman <katie@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
(cherry picked from commit 7a36fa4002)
Reviewed-on: https://go-review.googlesource.com/c/go/+/217998
2020-02-05 22:10:20 +00:00
Dmitri Shuralyov 3e83d30734 [release-branch.go1.13] all: merge release-branch.go1.13-security into release-branch.go1.13
Change-Id: I7119985b7b6fc02010a623ba2bc6d0d647ea8f70
2020-01-28 15:42:45 -05:00
Dmitri Shuralyov 7d2473dc81 [release-branch.go1.13-security] go1.13.7
Change-Id: I4e9b0a8eee1ea6a0854eab88a2daf77b21da549a
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/649300
Reviewed-by: Katie Hockman <katiehockman@google.com>
2020-01-27 22:26:53 +00:00
Filippo Valsorda f938e06d06 [release-branch.go1.13-security] src/go.mod: import x/crypto/cryptobyte security fix for 32-bit archs
cryptobyte: fix panic due to malformed ASN.1 inputs on 32-bit archs

    When int is 32 bits wide (on 32-bit architectures like 386 and arm), an
    overflow could occur, causing a panic, due to malformed ASN.1 being
    passed to any of the ASN1 methods of String.

    Tested on linux/386 and darwin/amd64.

    This fixes CVE-2020-7919 and was found thanks to the Project Wycheproof
    test vectors.

    Change-Id: I8c9696a8bfad1b40ec877cd740dba3467d66ab54
    Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/645211
    Reviewed-by: Katie Hockman <katiehockman@google.com>
    Reviewed-by: Adam Langley <agl@google.com>

x/crypto/cryptobyte is used in crypto/x509 for parsing certificates.
Malformed certificates might cause a panic during parsing on 32-bit
architectures (like arm and 386).

Change-Id: I840feb54eba880dbb96780ef7adcade073c4c4e3
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/647741
Reviewed-by: Katie Hockman <katiehockman@google.com>
2020-01-24 23:41:10 +00:00
Filippo Valsorda 0cfa6f6086 [release-branch.go1.13-security] crypto/x509: mitigate CVE-2020-0601 verification bypass on Windows
An attacker can trick the Windows system verifier to use a poisoned set
of elliptic curve parameters for a trusted root, allowing it to generate
spoofed signatures. When this happens, the returned chain will present
the unmodified original root, so the actual signatures won't verify (as
they are invalid for the correct parameters). Simply double check them
as a safety measure and mitigation.

Windows users should still install the system security patch ASAP.

This is the same mitigation adopted by Chromium:

https://chromium-review.googlesource.com/c/chromium/src/+/1994434

Change-Id: I2c734f6fb2cb51d906c7fd77034318ffeeb3e146
Reviewed-on: https://go-review.googlesource.com/c/go/+/215905
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ryan Sleevi <sleevi@google.com>
Reviewed-by: Katie Hockman <katie@golang.org>
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/647123
Reviewed-by: Filippo Valsorda <valsorda@google.com>
2020-01-24 19:25:41 +00:00
Ian Lance Taylor 6d171bc772 [release-branch.go1.13] runtime: ignore power notification error seen on Windows Docker
Updates #36557
Fixes #36575

Change-Id: Ia8125f382d5e14e5612da811268a58971cc9ac08
Reviewed-on: https://go-review.googlesource.com/c/go/+/214917
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Austin Clements <austin@google.com>
(cherry picked from commit d2de9bd59c)
Reviewed-on: https://go-review.googlesource.com/c/go/+/215002
2020-01-16 19:05:30 +00:00