Static tmps are private to a package, but with plugins a package
can be shared among multiple DSOs. They need to have a consistent
view of the static tmps, especially for writable ones. So export
them. (Read-only static tmps have the same values anyway, so it
doesn't matter. Also Mach-O doesn't support dynamically exporting
read-only symbols anyway.)
Fixes#44956.
Change-Id: I921e25b7ab73cd5d5347800eccdb7931e3448779
Reviewed-on: https://go-review.googlesource.com/c/go/+/301793
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
Update some symbol references after refactoring.
Change-Id: I134eec453b69efae97eb8a13e52ff8c14d38442a
Reviewed-on: https://go-review.googlesource.com/c/go/+/301790
Trust: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
The assember uses R15 as scratch space when assembling global variable
references in dynamically linked code. If the assembly code uses the
clobbered value of R15, report an error. The user is probably expecting
some other value in that register.
Getting rid of the R15 use isn't very practical (we could save a
register to a field in the G maybe, but that gets cumbersome).
Fixes#43661
Change-Id: I43f848a3d8b8a28931ec733386b85e6e9a42d8ff
Reviewed-on: https://go-review.googlesource.com/c/go/+/283474
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
(I needed this to debug an accidental infinite-recursion I introduced
while revising CL 293689.)
Fixes#38768
Change-Id: I306122f15b5bbd2fc5e836b32fd4dd5992ea891e
Reviewed-on: https://go-review.googlesource.com/c/go/+/302052
Trust: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
In Go1.13 and above, signed integers are permitted as shift counts as long as they are >=0.
However, the comments in the "Arithmetic operators" section says shift operators accept "unsigned integer" as of right operands. Replacing this with "integer>=0" resolves the misunderstanding that shift
operators permit only unsigned integers.
Reference: Go1.13 Release Notes: https://golang.org/doc/go1.13
Change-Id: Icd3c7734d539ab702590e992a618c9251c653c37
GitHub-Last-Rev: 4f263a48d3
GitHub-Pull-Request: golang/go#44664
Reviewed-on: https://go-review.googlesource.com/c/go/+/297249
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
Trust: Robert Griesemer <gri@golang.org>
Code generation for open defers failed to account for
presence of method receiver and thus was OFF BY ONE.
Fixes#45062.
Updates #44816.
Updates #40724.
Change-Id: Ia90ea8fd0f7d823e1f757c406f9127136c2ffdd2
Reviewed-on: https://go-review.googlesource.com/c/go/+/302249
Trust: David Chase <drchase@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Repair of CL 300749.
ALSO:
found evidence that stack maps for bodyless methods are wrong.
gofmt in test/abi
removed never-executed code in types/size.go
Updates #44816.
Updates #40724.
Change-Id: Ifeb5fee60f60e7c7b58ee0457f58a3265d6cf3f6
Reviewed-on: https://go-review.googlesource.com/c/go/+/302071
Trust: David Chase <drchase@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Ignore an embedded type in an interface which is the predeclared
interface "comparable" (which currently can only be in a type
constraint), since the name doesn't resolve and the "comparable" type
doesn't have any relevant methods (for the purposes of the compiler).
Added new test case graph.go that needs this fix.
Change-Id: I2443d2c3dfeb9d0a78aaaaf91a2808ae2759d247
Reviewed-on: https://go-review.googlesource.com/c/go/+/301831
Trust: Dan Scales <danscales@google.com>
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Preserve program header flags when passing them through loadelf.Load.
They shouldn't be coerced to 0 on non-ARM platforms which set them
such as ppc64le.
Change-Id: I022613356f910d812de2fc22eac949960eeb53b3
Reviewed-on: https://go-review.googlesource.com/c/go/+/300950
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
Adds the (*tls.Conn).HandshakeContext method. This allows
us to pass the context provided down the call stack to
eventually reach the tls.ClientHelloInfo and
tls.CertificateRequestInfo structs.
These contexts are exposed to the user as read-only via Context()
methods.
This allows users of (*tls.Config).GetCertificate and
(*tls.Config).GetClientCertificate to use the context for
request scoped parameters and cancellation.
Replace uses of (*tls.Conn).Handshake with (*tls.Conn).HandshakeContext
where appropriate, to propagate existing contexts.
Fixes#32406
Change-Id: I259939c744bdc9b805bf51a845a8bc462c042483
Reviewed-on: https://go-review.googlesource.com/c/go/+/295370
Run-TryBot: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Katie Hockman <katie@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
For #36460
Change-Id: I63596e1c95d0c702073cdb016579598d79cc95ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/300158
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
This was causing test failures while revising CL 293689: splitting the
roots out from the rest of the module graph may allow 'go list -e' to
proceed even when the rest of the module graph can't be loaded (e.g.
due to missing go.mod checksums). If that occurs, it becomes more
important that the moduleInfo helper function itself avoid fetching
unchecked files.
For #36460
Change-Id: I088509eeb3008cc6e8bfe85a00ec2bf500bf9423
Reviewed-on: https://go-review.googlesource.com/c/go/+/301371
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
For #36460
Change-Id: Ia8633f37aec8c7ed532bf7278867251e5e2a4285
Reviewed-on: https://go-review.googlesource.com/c/go/+/301370
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
Accepts comma "," as a separator for fractional seconds
hence we now accept:
* 2006-01-02 15:04:05,999999999 -0700 MST
* Mon Jan _2 15:04:05,120007 2006
* Mon Jan 2 15:04:05,120007 2006
This change follows the recommendations of ISO 8601 per
https://en.wikipedia.org/wiki/ISO_8601#cite_note-26
which states
ISO 8601:2004(E), ISO, 2004-12-01, "4.2.2.4 ...
the decimal fraction shall be divided from the integer
part by the decimal sign specified in ISO 31-0, i.e.
the comma [,] or full stop [.]. Of these, the comma
is the preferred sign."
Unfortunately, I couldn't directly access the ISO 8601 document
because suddenly it is behind a paywall on the ISO website,
charging CHF 158 (USD 179) for 38 pages :-(
However, this follows publicly available cited literature, as well
as the recommendations from the proposal approval.
Fixes#6189
Updates #27746
Updates #26002
Updates #36145
Updates #43813Fixes#43823
Change-Id: Ibe96064e8ee27c239be78c880fa561a1a41e190c
Reviewed-on: https://go-review.googlesource.com/c/go/+/300996
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com>
Reviewed-by: Rob Pike <r@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Since we cannot change the signature of reflect.ArrayOf to return an
error, we panic instead of producing a wrong result.
Fixes#43603
Change-Id: I23915df8d190f35af4d00ab86768868cd621e839
Reviewed-on: https://go-review.googlesource.com/c/go/+/284136
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com>
TryBot-Result: Go Bot <gobot@golang.org>
Using 0.0.0.0 for ListenUDP listens on all addresses. Calling LocalAddr
on that Conn returns 0.0.0.0. Sending to 0.0.0.0 doesn't seem to work on
Windows. See #22827.
Change-Id: I4a48fbabe65a63e07600a65309977cec08a9c1e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/301850
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Trust: Filippo Valsorda <filippo@golang.org>
This reverts commit 8ed438c077, CL 300749.
Reason for revert: Looks like it crashes on link-register architectures
Change-Id: I0c261df58900008cada3359889d2a87508158447
Reviewed-on: https://go-review.googlesource.com/c/go/+/302053
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
ALSO:
found evidence that stack maps for bodyless methods are wrong.
gofmt in test/abi
removed never-executed code in types/size.go
Updates #44816.
Change-Id: I658c33f049337fb6f1e625f0c55430d25bfa877e
Reviewed-on: https://go-review.googlesource.com/c/go/+/300749
Trust: David Chase <drchase@google.com>
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Added test example orderedmap.go (binary search tree) that requires this
fix (calling function compare in _Map).
Also added new tests slices.go and metrics.go that just work.
Change-Id: Ifa5f42ab6eee9aa54c40f0eca19e00a87f8f608a
Reviewed-on: https://go-review.googlesource.com/c/go/+/301829
Trust: Dan Scales <danscales@google.com>
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Add support for maps in subster.typ(). Add new test cases maps.go and set.go.
Change substitution of a TFUNC in subster.typ() to always create new
param and result structs if any of the receiver, param, or result
structs get substituted. All these func structs must be copied, because
they have offset fields that are dependent, and so must have an
independent copy for each new signature (else there will be an error
later when frame offsets are calculated).
Change-Id: I576942a62f06b46b6f005abc98f65533008de8dc
Reviewed-on: https://go-review.googlesource.com/c/go/+/301670
Trust: Dan Scales <danscales@google.com>
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Add support for channels in subster.typ(). Add new test file chans.go.
To support assignability of bidirectional channel args to directional
channel params, I needed to type check generic calls after they are
instantiated. (Eventually, we will create separate functions to just do
the assignability logic, so we don't need to call the old typechecker in
this case.) So, for generic calls, we now leave the call as OCALL (as a
signal that the call still needs typechecking), and do typecheck.Call()
during stenciling.
Smaller changes:
- Set the type of an instantiated OCLOSURE node (and not just the associated
OFUNC node)
- In instTypeName2, filter out the space that types2.TypeString inserts
after a common in a typelist. Our standard naming requires no space
after the comma.
- With the assignability fix above, I no longer need the explicit
conversions in cons.go.
Change-Id: I148858bfc6708c0aa3f50bad7debce2b8c8c091f
Reviewed-on: https://go-review.googlesource.com/c/go/+/301669
Trust: Dan Scales <danscales@google.com>
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
This change moves the call of sysMap from (*mheap).sysAlloc into
(*mheap).grow, so we only sysMap what we're going to use in the near
future (thanks to the curArena mechanism). The purpose of this change is
to better support systems with strict overcommit rules which generally
accept reserved memory but not prepared memory (see malloc.go for exact
descriptions of these states).
This move requires changing linearAlloc to only optionally map memory.
In one case, with mheap.heapArenaAlloc, we do want it to map memory. But
now in the other case, with mheap.arena, we don't, because we want grow
to take care of it.
The risk with this change is we may make more syscalls than before on
systems with 64 MiB arenas, but because heap growth is relatively rare
this is unlikely to be a noticable issue. We also bound the amount of
syscalls made by only extending curArena (and thus mapping) by
pallocChunkPages*pageSize which is 4 MiB.
Fixes#42612.
Change-Id: I736df696afe78ddb1a747a896caa0db8726027e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/270537
Trust: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
A Directive (like <!ENTITY xxx []>) can't have other nodes nested inside
it (in our data structure representation), so there is no way to
preserve comments. The previous behavior was to just elide them, which
however might change the semantic meaning of the surrounding markup.
Instead, replace them with a space which hopefully has the same semantic
effect of the comment.
Directives are not actually a node type in the XML spec, which instead
specifies each of them separately (<!ENTITY, <!DOCTYPE, etc.), each with
its own grammar. The rules for where and when the comments are allowed
are not straightforward, and can't be implemented without implementing
custom logic for each of the directives.
Simply preserving the comments in the body of the directive would be
problematic, as there can be unmatched quotes inside the comment.
Whether those quotes are considered meaningful semantically or not,
other parsers might disagree and interpret the output differently.
This issue was reported by Juho Nurminen of Mattermost as it leads to
round-trip mismatches. See #43168. It's not being fixed in a security
release because round-trip stability is not a currently supported
security property of encoding/xml, and we don't believe these fixes
would be sufficient to reliably guarantee it in the future.
Fixes CVE-2020-29510
Updates #43168
Change-Id: Icd86c75beff3e1e0689543efebdad10ed5178ce3
Reviewed-on: https://go-review.googlesource.com/c/go/+/277893
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
Before this change, <:name> would parse as <name>, which could cause
issues in applications that rely on the parse-encode cycle to
round-trip. Similarly, <x name:=""> would parse as expected but then
have the attribute dropped when serializing because its name was empty.
Finally, <a🅱️c> would parse and get serialized incorrectly. All these
values are invalid XML, but to minimize the impact of this change, we
parse them whole into Name.Local.
This issue was reported by Juho Nurminen of Mattermost as it leads to
round-trip mismatches. See #43168. It's not being fixed in a security
release because round-trip stability is not a currently supported
security property of encoding/xml, and we don't believe these fixes
would be sufficient to reliably guarantee it in the future.
Fixes CVE-2020-29509
Fixes CVE-2020-29511
Updates #43168
Change-Id: I68321c4d867305046f664347192948a889af3c7f
Reviewed-on: https://go-review.googlesource.com/c/go/+/277892
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
This commit rewrites ReadFromUDP to be mid-stack inlined
and pass a UDPAddr for lower layers to fill in.
This lets performance-sensitive clients avoid an allocation.
It requires some care on their part to prevent the UDPAddr
from escaping, but it is now possible.
The UDPAddr trivially does not escape in the benchmark,
as it is immediately discarded.
name old time/op new time/op delta
WriteToReadFromUDP-8 17.2µs ± 6% 17.1µs ± 5% ~ (p=0.387 n=9+9)
name old alloc/op new alloc/op delta
WriteToReadFromUDP-8 112B ± 0% 64B ± 0% -42.86% (p=0.000 n=10+10)
name old allocs/op new allocs/op delta
WriteToReadFromUDP-8 3.00 ± 0% 2.00 ± 0% -33.33% (p=0.000 n=10+10)
Updates #43451
Co-authored-by: Filippo Valsorda <filippo@golang.org>
Change-Id: I1f9d2ab66bd7e4eff07fe39000cfa0b45717bd13
Reviewed-on: https://go-review.googlesource.com/c/go/+/291509
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Trust: Filippo Valsorda <filippo@golang.org>
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Updates src/ and src/cmd/* dependencies, using
go mod vendor
as well as
updatestd -branch=master -goroot=$GOROOT
This change was ran in anticipation of bringing in x/net/http2 CL 237957.
For #32112.
For #36905.
Change-Id: If8cefc348463b6d82d85020b57db411213720ef8
Reviewed-on: https://go-review.googlesource.com/c/go/+/296789
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Alexander Rakoczy <alex@golang.org>
The register allocator has a special case that doesn't allocate
LR on ARMv5. This was necessary when softfloat expansion was done
by the assembler. Now softfloat calls are inserted by SSA, so it
works as normal. Remove this special case.
Change-Id: I5502f07597f4d4b675dc16b6b0d7cb47e1e8974b
Reviewed-on: https://go-review.googlesource.com/c/go/+/301792
Trust: Cherry Zhang <cherryyz@google.com>
Reviewed-by: David Chase <drchase@google.com>
variable xtop has removed and refactored after go 1.16, but there are comments referring xtop.
It may mislead new contributors to be confused.
Change-Id: Id79c747d8daef14049b29e70a4ecd34054a28a5e
GitHub-Last-Rev: 94b5520886
GitHub-Pull-Request: golang/go#44995
Reviewed-on: https://go-review.googlesource.com/c/go/+/301629
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Trust: Keith Randall <khr@golang.org>
These are always sorted and grouped during initialization of the
actual opcode -> optab map generation. Thus, their initial location
in optab is mostly aimed at readability. This cleanup is intends to
ease reviewing of future patches which simplify, combine, or remove
MOV* optab entries.
Change-Id: I87583ed34fab79e0f625880f419d499939e2a9e1
Reviewed-on: https://go-review.googlesource.com/c/go/+/300612
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
The whitespace was there to align with the following comment,
but the extra whitespace was unnecessary; it wasn't gofmt'd.
Then the file got gofmt'd, but the whitespace didn't get fixed.
Change-Id: I45aad9605b99d83545e4e611ae3ea1b2ff9e6bf6
Reviewed-on: https://go-review.googlesource.com/c/go/+/301649
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Adds test to check that the compiler does not emit duplicate debug_line
entries for the end of sequence address.
Updates #42484
Change-Id: I3c5d1d606fcfd758aa1fd83ecc51d8edc054398b
Reviewed-on: https://go-review.googlesource.com/c/go/+/270197
TryBot-Result: Go Bot <gobot@golang.org>
Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com>
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Prior to this CL, pasting the example from the website causes a
compilation error for some programs because it was shadowing the
"json" package.
Change-Id: I39b68a66ca99468547f2027a7655cf1387b61e95
Reviewed-on: https://go-review.googlesource.com/c/go/+/301492
Reviewed-by: Joe Tsai <joetsai@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Joe Tsai <joetsai@google.com>
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This replaces five implementations scattered across low level packages.
(And I plan to use it in a sixth soon.)
Three of the five were byte-for-byte identical.
Change-Id: I3bbbeeac63723a487986c912b604e10ad1e042f4
Reviewed-on: https://go-review.googlesource.com/c/go/+/301549
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
After CL 179377, this change deletes all the prior cmd/cover code
and instead vendors and type aliases code using the significantly
optimized golang.org/x/tools/cover, which sped up ParseProfiles by
manually parsing profiles instead of a regex. The speed up was:
name old time/op new time/op delta
ParseLine-12 2.43µs ± 2% 0.05µs ± 8% -97.98% (p=0.000 n=10+9)
name old speed new speed delta
ParseLine-12 42.5MB/s ± 2% 2103.2MB/s ± 7% +4853.14% (p=0.000 n=10+9)
Fixes#32211.
Change-Id: Ie4e8be7502f25eb95fae7a9d8334fc97b045d53f
Reviewed-on: https://go-review.googlesource.com/c/go/+/249759
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com>
TryBot-Result: Go Bot <gobot@golang.org>
This code is generated from golang.org/x/net/http2 and thus any changes
first have to occur there. Otherwise TestAllDependencies fails on the
longtest builders.
Change-Id: I918afdd9388dd28bb3c8e55438be764c4f32c7c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/301491
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
TryBot-Result: Go Bot <gobot@golang.org>
