Use ^ and $ in the -run flag regular expression value when the intention
is to invoke a single named test. This removes the reliance on there not
being another similarly named test to achieve the intended result.
In particular, package syscall has tests named TestUnshareMountNameSpace
and TestUnshareMountNameSpaceChroot that both trigger themselves setting
GO_WANT_HELPER_PROCESS=1 to run alternate code in a helper process. As a
consequence of overlap in their test names, the former was inadvertently
triggering one too many helpers.
Spotted while reviewing CL 525196. Apply the same change in other places
to make it easier for code readers to see that said tests aren't running
extraneous tests. The unlikely cases of -run=TestSomething intentionally
being used to run all tests that have the TestSomething substring in the
name can be better written as -run=^.*TestSomething.*$ or with a comment
so it is clear it wasn't an oversight.
Change-Id: Iba208aba3998acdbf8c6708e5d23ab88938bfc1e
Reviewed-on: https://go-review.googlesource.com/c/go/+/524948
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Kirill Kolyshkin <kolyshkin@gmail.com>
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Also add a check that we didn't leave any core files behind.
Change-Id: I30444ef43ad1a8cc1cacd3b75280f2128e104939
Reviewed-on: https://go-review.googlesource.com/c/go/+/525175
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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Change-Id: I4048caffd4f79e3ffb6a0a3770bdfa830d1a2f35
Reviewed-on: https://go-review.googlesource.com/c/go/+/525515
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Change-Id: I2e218805fbe4858be125df97bdaf921799315799
GitHub-Last-Rev: 32b798d75f
GitHub-Pull-Request: golang/go#62410
Reviewed-on: https://go-review.googlesource.com/c/go/+/525015
Auto-Submit: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Change-Id: I9d8056117367998c3723ec4cc09f47b46ec8b4ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/525855
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This CL is to add assembly instruction mnemonics for the following instructions, mainly used in crypto packages.
* KMA - cipher message with authentication
* KMCTR - cipher message with counter
Fixes#61163
Change-Id: Iff9a69911aeb4fab4bca8755b23a106eaebb2332
Reviewed-on: https://go-review.googlesource.com/c/go/+/515195
Reviewed-by: Carlos Amedee <carlos@golang.org>
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Move growslice generation to a separate func so that specialization
logic can be shared.
Updates #49480
Change-Id: I9ea5bb898753622d2d767546a46b4db6410dc725
Reviewed-on: https://go-review.googlesource.com/c/go/+/495877
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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Fixup for CL 520265; of course errors returned from os/exec are wrapped.
While at it, change the order -- it seems more readable this way.
Change-Id: Ifb5d0c113f4fb2b3cc4be922021dbd2a8a886b7b
Reviewed-on: https://go-review.googlesource.com/c/go/+/524959
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This allows to reuse the slice cap computation across
specialized growslice funcs.
Updates #49480
Change-Id: Ie075d9c3075659ea14c11d51a9cd4ed46aa0e961
Reviewed-on: https://go-review.googlesource.com/c/go/+/495876
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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This is tiny optimization for growslice, which is probably too small to
measure easily.
Move the for loop to avoid multiple checks inside the loop.
Also, use >> 2 instead of /4, which generates fewer instructions.
Change-Id: I9ab09bdccb56f98ab22073f23d9e102c252238c7
Reviewed-on: https://go-review.googlesource.com/c/go/+/493795
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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Change-Id: Idb09d68ce1e4823c8a330430e082d5c7ac2d8fc5
GitHub-Last-Rev: 5a2b71b21e
GitHub-Pull-Request: golang/go#62441
Reviewed-on: https://go-review.googlesource.com/c/go/+/525415
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Keith Randall <khr@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
There is not a great reason to hide the alphabet used
for StdEncoding, HexEncoding, and URLEncoding.
Although this is specified in RFC 4748,
showing it in GoDoc saves an extra click from going
to the RFC itself to see the alphabet being used.
Also, split exported and unexported constants apart
so that GoDoc renders more cleanly.
Fixes#55126
Change-Id: I03bfa607fb6c3df7f757e33fc0f4ec2b233de1a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/525296
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ArgWidth() already includes the stack space required for
input parameters and return values, so their offset will
not exceed the value of ArgWidth(), so there is no need
to double it.
Change-Id: I10fde7afbf2a5714b5142075c2116af14debc7e8
GitHub-Last-Rev: eaf3fd5eb8
GitHub-Pull-Request: golang/go#60591
Reviewed-on: https://go-review.googlesource.com/c/go/+/500675
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
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This way, the test case is self-contained, and the test output no longer
has useless lines related to TestUseCgroupFDHelper.
Change-Id: I575a03b678c8c08a87353f6dc00c35a90ec561ca
Reviewed-on: https://go-review.googlesource.com/c/go/+/525196
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
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Change-Id: I8b3eb51e31139314d222d796b56ab7d42338797f
Reviewed-on: https://go-review.googlesource.com/c/go/+/525315
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Change-Id: I80c494a357195dad3ade98fcce0a6883303777ce
GitHub-Last-Rev: a30615f373
GitHub-Pull-Request: golang/go#62422
Reviewed-on: https://go-review.googlesource.com/c/go/+/524998
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The special treatment of io.ByteReader is somewhat significant.
Linkify references to that type from documentation.
Change-Id: I77c06e4c6b957d107638e2ff2a4c58148b396ed3
Reviewed-on: https://go-review.googlesource.com/c/go/+/525016
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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The upcoming built-in zero value provides an idiomatic way
to test for zero by comparing to the zero literal: v == zero.
The reflect package is meant to provide a programmatic way to perform
operations that the Go language itself provides.
Thus, it seems prudent that reflect.ValueOf(&v).Elem().IsZero() is
identical to v == zero.
This change alters the behavior of Value.IsZero in two concrete ways:
* negative zero is identical to zero
* blank fields in a struct are ignored
Prior to this change, we were already in an inconsistent state
due to a regression introduced by CL 411478.
The new behavior was already the case for comparable composite types.
This change makes it consistent for all other types
(in particular incomparable composite types and standalone numbers).
Updates #61372Fixes#61827
Change-Id: Id23fb97eb3b8921417cc75a1d3ead963e22dc3d9
Reviewed-on: https://go-review.googlesource.com/c/go/+/517777
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After the change from CL 426074 the Range method on Map always
escape the read variable, leading to an allocation.
Since the compiler doesn't do live-range splitting for local variables we
need to use some hints to only escape in that particular branch.
Fixes#62404
Change-Id: I938a5e593647455fa827e3dd3ed8ea22c7365df1
GitHub-Last-Rev: fcbedb467c
GitHub-Pull-Request: golang/go#62408
Reviewed-on: https://go-review.googlesource.com/c/go/+/524976
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Preparatory refactoring before next CL.
Change-Id: I06fb4670b933fddff1a2a70f3cf1eb124cbd86ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/524899
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Rather than making these two different types, we can type alias them
together. This will ease converting cmd/internal/dwarf to use generics
in a subsequent CL.
The one unfortunate quirk is that while we'd currently like loader.Sym
to be the authoritative type, to break the cycle we have to instead
make loader.Sym an alias of sym.LoaderSym.
Change-Id: I6dde0d492ca89a478c2470c426bb4eed3393d680
Reviewed-on: https://go-review.googlesource.com/c/go/+/525195
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The old Go object file format used linker symbols like "gofile..foo"
to record references to the filename "foo". But the current object
file format has a dedicated section for file names, so we don't need
these useless prefixes anymore.
Also, change DWARF generation to pass around the src.Pos directly,
rather than the old file symbols, which it just turned back into a
file index before writing out anyway.
Finally, directly record the FileIndex into src.PosBase, so that we
can skip the map lookups.
Change-Id: Ia4a5ebfa95da271f2522e45befdb9f137c16d373
Reviewed-on: https://go-review.googlesource.com/c/go/+/523378
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Currently we subtract 8 from offset when calling duffzero because 8
is added to offset in the duffzero implementation. This operation is
meaningless, so remove it.
Change-Id: I7e451d04d7e98ccafe711645d81d3aadf376766f
Reviewed-on: https://go-review.googlesource.com/c/go/+/487295
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Meidan Li <limeidan@loongson.cn>
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Auto-Submit: Ian Lance Taylor <iant@golang.org>
The time granularity on windows is large enough that setting even an
implausibly small timeout still gives ConnectEx enough time to succeed
before the timeout expires. That causes TestDialTimeout to sometimes
flake, because it expects to be able to provoke a timeout using some
nonzero duration.
This change takes a two-pronged approach to address the problem:
1. We can set a deadline on the FD more aggressively. (If the Context
has already expired, or the deadline is already known, we can go ahead
and set it on the fd without waiting for a background goroutine to get
around to it.)
2. We can reintroduce a test hook to ensure that Dial takes a
measurable amount of time before it completes, so that setting an
implausibly short deadline sets that deadline in the past instead of
the future.
Together, these reduce the flake rate on a windows-amd64-longtest
gomote from around 1-in-10 to less than 1-in-2000.
For #62377.
Change-Id: I03975c32f61fffa9f6f84efb3c474a01ac5a0d1e
Reviewed-on: https://go-review.googlesource.com/c/go/+/524936
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Now we have two cases when we want to keep methods with a specific name:
calls to generic interface methods and MethodByName("Foo"). Both use
the same relocation type, so let us give it a name that is not limited
to the implementation of generic interfaces.
Also, introduce staticdata.StrSymNoCommon(). It creates a symbol that
does not appear in the final binary and only communicates arguments
to the linker.
Change-Id: Icc9f49febfde1f31a4455b5acb903e8838d1c0af
Reviewed-on: https://go-review.googlesource.com/c/go/+/523016
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There is no more need to do this in the linker. The compiler now
handles both Type.Method() and Value.Method(), and flags their
users as ReflectMethod.
Change-Id: Ice93d5d975a1b93a324471e8abdebdce141d17d0
Reviewed-on: https://go-review.googlesource.com/c/go/+/522437
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Normally, a call to MethodByName() disables the DCE because the linker
assumes that any method can be accessed this way. This pessimises
the code generation for k8s.io/apimachinery which needs MethodByName()
to verify whether or not a struct implements DeepCopyInto(). It cannot
cast a struct to `interface { DeepCopyInto() Foo }` because the return
type may vary. Instead, it does the following:
if m := reflect.ValueOf(obj).MethodByName("DeepCopyInto"); ... {
In this case there is no need to disable the DCE altogether. It
suffices to add a relocation to keep methods named DeepCopyInto().
Fixes#62257.
Change-Id: I583c2f04d8309a8807de75cd962c04151baeeb1b
Reviewed-on: https://go-review.googlesource.com/c/go/+/522436
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Print Stderr on test failure to track down the intermittent
test failure reported in issue #62352.
Change-Id: I547a3220dc07d05578dac093d6c028a9103b552a
Reviewed-on: https://go-review.googlesource.com/c/go/+/524156
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
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The check in prepareCgroupFD tried to find out if clone3 with
CLONE_INTO_CGROUP flag is supported, by supplying arguments in
SysProcAttr that will make ForkExec use clone3 with CLONE_INTO_CGROUP
and fail.
CL 456375 inadvertently broke the above check by adding more errno
values to ignore. As a result, TestUseCgroupFD is always skipped, even
when the test could in fact be run.
Fix by removing the check entirely, instead let's use the functionality
and figure out from the errno if this has failed because of unsupported
syscall, lack of permissions, or other reason.
Change-Id: I108b27b6cfeec390ebd3f161ac39e8597569b666
Reviewed-on: https://go-review.googlesource.com/c/go/+/520265
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Update the doc comments to use the more idiomatic and common phrase
"reports whether" instead of "tests whether".
Change-Id: I2b7f8cce2d192f66e296ebaa9b37f37e8276b4ae
Reviewed-on: https://go-review.googlesource.com/c/go/+/524898
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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strings.ReplaceAll is currently available.
Change-Id: I111b97f12723c97791b59d81fd035a0d5e97cd4b
GitHub-Last-Rev: 561dbab6d2
GitHub-Pull-Request: golang/go#62369
Reviewed-on: https://go-review.googlesource.com/c/go/+/524157
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Waiting only for 100ms might be not enough for the callback to be
called. It is more reliable to wait infinitely and rely on the
test timeout to fail the test if the callback is not called.
Fixes#62206
Change-Id: I06b5eadae1dd334a2afc41af31a44b42cb5e596d
Reviewed-on: https://go-review.googlesource.com/c/go/+/524695
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Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
We were accidentally using the sysconf parameter constant.
Change to using the value of that sysconf parameter.
Change-Id: Id7668e7cced0ce7504df99dbbff0757d29dee8c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/524555
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Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Also add a test that the VDSO is actually working.
Fixes#62309
Change-Id: Ia846b36dfc21716f1653bdf2671485a4cf4a7bd1
Reviewed-on: https://go-review.googlesource.com/c/go/+/523955
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Reviewed-by: Austin Clements <austin@google.com>
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We only use it for gccgo. Also only write out LDFLAGS,
as that is all that cmd/go uses.
Fixes#60642
Change-Id: I6ccc419a17a433583d9868dd63aa7ec41c2b22c4
Reviewed-on: https://go-review.googlesource.com/c/go/+/524556
Auto-Submit: Ian Lance Taylor <iant@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
The LUCI builders seem to show that the failure mode in #62359 is not
specific to windows/arm64, but it occurs to me that we ought to be
able to eventually retry by making the timeout so short that the
remote end can't possibly respond in time (discounting the possibility
that the kernel itself might short-circuit the loopback address).
For #62377.
Updates #62359.
Updates #56876.
Change-Id: I1fb5fa4f2a5d2cfe35465f34248ed9a035f91f4f
Reviewed-on: https://go-review.googlesource.com/c/go/+/524595
Reviewed-by: Damien Neil <dneil@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
The unmarshal and marshal XML text should be consistent if not modified deserialize variable.
Fixes#61881
Change-Id: I475f7b05211b618685597d3ff20b97e3bbeaf8f8
GitHub-Last-Rev: 6831c770c3
GitHub-Pull-Request: golang/go#58401
Reviewed-on: https://go-review.googlesource.com/c/go/+/466295
Reviewed-by: ri xu <xuri.me@gmail.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
For #60088
Change-Id: I4b2a5c6c59ef26361f343052a4ddaabde5d3bc94
GitHub-Last-Rev: d519835ad5
GitHub-Pull-Request: golang/go#62370
Reviewed-on: https://go-review.googlesource.com/c/go/+/524259
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Change-Id: Iad902ec2a13b0c5c594c60ecac0b40f641574a1e
Reviewed-on: https://go-review.googlesource.com/c/go/+/524275
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Run-TryBot: Joseph Tsai <joetsai@digital-static.net>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
The addmod.go and savedir.go testdata generation tools were missing the
"cmd/go/internal/str" import, causing them to fail to build. This change
adds the imports.
This makes progress on the work to use Join functions rather than path
manipulation using the path separator:
https://go-review.googlesource.com/c/go/+/463178
Change-Id: Ia70253afc0a351c646e672bd4178a8738e4e69cf
Reviewed-on: https://go-review.googlesource.com/c/go/+/524155
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
Since we have only seen this failure mode on windows/arm64,
we do not skip on the Go project's windows/amd64 builders
so that we will be more likely to find out whether this failure mode
is specific to arm64.
Also simplify the ECONNRESET check, since I've remembered that the
error_*_test.go files exist.
Fixes#62359.
Updates #56876.
Change-Id: I17bd678486f3d3ec3363a45986a711f570b013d0
Reviewed-on: https://go-review.googlesource.com/c/go/+/524455
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
Preparation for the introduction of alias types.
Because asNamed is not exported, existing external
tests continue to use t.(*Named).
Change-Id: I4754b406dd6b23030d3703a486d6f6620b2464fe
Reviewed-on: https://go-review.googlesource.com/c/go/+/522876
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
This reverts commit c1dfbf72e1.
Reason for revert: TESTL rule is wrong when the result is used for an ordered comparison.
Fixes#62360
Change-Id: I4d5b6aca24389b0a2bf767bfbc0a9d085359eb38
Reviewed-on: https://go-review.googlesource.com/c/go/+/524255
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Jakub Ciolek <jakub@ciolek.dev>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
