Goids are designed to be big enough that they will never be reused:
a uint64 is enough to generate a new goroutine every nanosecond
for 500+ years before wrapping around, and after 500 years you
should probably stop and pick up some security updates.
This note was added in CL 70993 and appears to have just been
a misunderstanding by the CL author.
Change-Id: Ida7099b5191a4e5dbb1e3e9e44b4b86d7779fd6d
Reviewed-on: https://go-review.googlesource.com/c/go/+/582895
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Auto-Submit: Russ Cox <rsc@golang.org>
Fixes#67137
- Make it clear the benchmark function is called multiple times.
- Demonstrate range over int.
Change-Id: I7e993d938b0351012cdd4aed8528951e0ad406ae
Reviewed-on: https://go-review.googlesource.com/c/go/+/582835
Auto-Submit: Alan Donovan <adonovan@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
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Reviewed-by: Damien Neil <dneil@google.com>
This CL adds a wrapper for the golang.org/x/telemetry/counter.NewStack
function so that it can be used by the compiler.
Also add build constraints for compiler_bootstrap to build the stubs
when we're bootstrapping the compiler.
For #58894
Change-Id: Icdbdd7aa6d2a3f1147112739c6939e14414f5ee9
Cq-Include-Trybots: luci.golang.try:gotip-linux-arm64-longtest,gotip-windows-amd64-longtest
Reviewed-on: https://go-review.googlesource.com/c/go/+/582695
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[Reader.Reader] does not exist in this package.
These docs most likely meant to refer to [Reader] itself.
Change-Id: I4fa117e8541573e0be7c13751fdfc102d5f2d604
Reviewed-on: https://go-review.googlesource.com/c/go/+/582515
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
The routing tree used for matching ServeMux patterns used the
key "*" to hold a child node for a multi-segment wildcard.
The problem is that "*" is a valid path segment, which confused
the matching algorithm: it would fetch the multi wildcard child
when looking for the literal child for "*".
Eschew clever encodings. Use a separate field in the node to
represent the multi wildcard child.
Fixes#67067.
Change-Id: I300ca08b8628f5367626cf41979f6c238ed8c831
Reviewed-on: https://go-review.googlesource.com/c/go/+/582115
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Reviewed-by: Damien Neil <dneil@google.com>
Change-Id: Id15ebd9e97a8626e64665f6830a662e62432a619
Reviewed-on: https://go-review.googlesource.com/c/go/+/582500
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Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
It is better to have a single implementation of VolumeName, which is
quite tricky to get right on Windows.
Change-Id: Ibba82dd71fe10b594cb6f782582430aa422e7078
Reviewed-on: https://go-review.googlesource.com/c/go/+/582499
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Reviewed-by: Damien Neil <dneil@google.com>
Run-TryBot: Quim Muntal <quimmuntal@gmail.com>
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It is better to have a single implementation of IsAbs, which is quite
tricky to get right on Windows.
Change-Id: I45933b0ceff2920d9eddb61e62aacb2602c3dc8c
Reviewed-on: https://go-review.googlesource.com/c/go/+/582498
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Change-Id: I826412175876a84ab978aba9418be28593484fba
GitHub-Last-Rev: d35753c7e0
GitHub-Pull-Request: golang/go#67112
Reviewed-on: https://go-review.googlesource.com/c/go/+/582435
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
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Change-Id: Ic9cf871d862aec54ab8f491b8bc8d2820aecc875
Reviewed-on: https://go-review.googlesource.com/c/go/+/582497
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Quim Muntal <quimmuntal@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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CL 532217 added the newDNSError function.
However, the implementation was not correct on
Plan 9, which lead TestLookupNoSuchHost to fail.
This change fixes lookupHost on Plan 9.
Fixes#67096.
Change-Id: I39271f7d588b19c1b1608f18a24d871460be09cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/582236
Reviewed-by: Joedian Reid <joedian@google.com>
Run-TryBot: David du Colombier <0intro@gmail.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
To make it easier to read.
Change-Id: I2fa1eb78d879b9d86b4dc839be7ede37c7c864f4
Reviewed-on: https://go-review.googlesource.com/c/go/+/581976
Auto-Submit: Ian Lance Taylor <iant@google.com>
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See #66870
Change-Id: I781265355a3dbd0d9538bc9dcafaa83b482ec3f8
GitHub-Last-Rev: 9d92f116b0
GitHub-Pull-Request: golang/go#66922
Reviewed-on: https://go-review.googlesource.com/c/go/+/580515
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Joedian Reid <joedian@google.com>
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The local variable may not be 64bit aligned, which caused arm tests
to fail.
Fixes#67077
Change-Id: Ia3ae4abcc90319cb10cd593bdc7994cc6eeb3a28
Reviewed-on: https://go-review.googlesource.com/c/go/+/581916
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
time.Since has optimizations for measuring monotonic time.
For #31160.
Change-Id: I0529b9f69b9f008e3414b8e386b6faa64af4a008
Reviewed-on: https://go-review.googlesource.com/c/go/+/582135
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Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
ksh handles make.bash surprisingly well and is a smaller
supply chain attack surface, so it's reasonable to want
to use "ksh make.bash" to build Go.
The only place where ksh and bash disagree in running
make.bash is an arguable bug in ksh that
X=Y foo
accidentally changes the real value of X following that
command when foo is a shell function. (It correctly preserves
the original value of X when foo is a command being invoked.)
More specifically,
GOROOT=$GOROOT_BOOTSTRAP nogoenv foo
incorrectly changes $GOROOT in the rest of the script.
CL 580020 suggested using a subshell, but subshells
historically have lost "set -e", so we'd have to use (...) || exit 1.
Instead of that, this CL refactors nogoenv into bootstrapenv,
putting it in charge of changing $GOROOT the same way it
changes all the other environment variables.
This CL also updates make.rc for parallelism.
It does not bother updating make.bat: that part is already
a bit different, and attempting to change it is all risk, no reward.
Change-Id: I5923a6fb5016a3862363363859365d1cd4f61a1d
Reviewed-on: https://go-review.googlesource.com/c/go/+/582076
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Reviewed-by: Eric Grosse <grosse@gmail.com>
The path/filepath package needs to depend on the os package to
implement Abs, Walk, and other functions. Move the implementation
of purely lexical functions from path/filepath into
internal/filepathlite, so they can be used by os and
other low-level packages.
Change-Id: Id211e547d6f1f58c82419695ff2d75cd6cd14a12
Reviewed-on: https://go-review.googlesource.com/c/go/+/566556
Reviewed-by: Behroz Karimpor <behrozkarimpor201@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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The safefilepath package was originally added to contain
the FromFS function. We subsequently added FromFS to path/filepath
as Localize. The safefilepath package now exists only to permit
the os package to import Localize.
Rename safefilepath to filepathlite to better indicate that it's
a low-dependency version of filepath.
Change-Id: I4c5f9b28e8581f841947b48c5cac9954cd0c9535
Reviewed-on: https://go-review.googlesource.com/c/go/+/581517
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
To be used by internal/filepathlite, which is to be used by os.
There are probably other places where it would be convenient
to have strings functions accessible to RUNTIME level packages.
Change-Id: Icda59e7a9e26d9e8f3692db0ea4fb7b3dbf570d7
Reviewed-on: https://go-review.googlesource.com/c/go/+/581516
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Windows time.Now granularity is around 0.5ms on modern systems,
which introduces a significant noise into benchmark results.
Instead of relying time.Now use QueryPerformanceCounter, which
has significantly better granularity compared to time.Now.
│ TimeNow-32 │ HighPrecisionTimeNow-32 │
│ sec/op │ sec/op vs base │
4.812n ± 0% 30.580n ± 0% +535.43% (p=0.000 n=20)
Fixes#31160
Change-Id: Ib2a574d638c9c6762a2524212def02265574e267
Reviewed-on: https://go-review.googlesource.com/c/go/+/557315
Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
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Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Remove unnecessary conversion from unsafe.Pointer to unsafe.Pointer.
Also fix small typo in weak.Pointer.Strong method documentation.
Change-Id: I84791fba244581bd6218c589827a61914f0797b4
GitHub-Last-Rev: 7978d07d5b
GitHub-Pull-Request: golang/go#66977
Reviewed-on: https://go-review.googlesource.com/c/go/+/580936
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Commit-Queue: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Joedian Reid <joedian@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Since CL 515015 added sync.Map.Clear method, we can use it to make
the code simpler and clearer.
Change-Id: I29edc969431b4fd95cd5fd864953a71ca1538dd3
Reviewed-on: https://go-review.googlesource.com/c/go/+/582015
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Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Joedian Reid <joedian@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Release notes should always be files under doc/next. Make it clear that
this is the only way to add them: RELNOTE markers in CLs are no longer
supported.
Change-Id: I34d77eb876f57b84ecdc7e5ecbf3eb5c91e6fed8
Reviewed-on: https://go-review.googlesource.com/c/go/+/582075
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Bypass: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
The net package's sendfile tests exercise various paths where
we expect sendfile to be used, but don't verify that sendfile
was in fact used.
Add a hook to internal/poll.SendFile to let us verify that
sendfile was called when expected. Update os package tests
(which use their own hook mechanism) to use this hook as well.
For #66988
Change-Id: I7afb130dcfe0063d60c6ea0f8560cf8665ad5a81
Reviewed-on: https://go-review.googlesource.com/c/go/+/581778
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Since CL 472475, io.Copy can no longer use sendfile on macOS for copying
files to a socket due to a too strict type assertion. This CL fixes the
issue by checking for the necessary interfaces instead of the concrete
os.File type in sendfile_unix_alt.go.
Fixes#66988
Change-Id: Ia0dd190f6575016a191c34a935132907147c8e10
Reviewed-on: https://go-review.googlesource.com/c/go/+/581035
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Damien Neil <dneil@google.com>
Second try at fixing the TestElfBindNow testpoint: don't try to check
for readonly ".got" section when using the external linker, since
there is code in some linkers (BFD in particular) that will skip
placing ".got" in relro if the section is below a specific size
threshold. Revised version of the test checks only for readonly
".dynamic" in the external linking case.
Fixes#67063.
Change-Id: Idb6b82ec7893baddf171654775587f6050fc6258
Reviewed-on: https://go-review.googlesource.com/c/go/+/581995
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
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TestNewBufferShallow should be skipped if optimization is disabled.
It is currently failing on no-opt builders.
Change-Id: Ib5e62022a56a4e5f158f247d69a6229d2cb4d99e
Reviewed-on: https://go-review.googlesource.com/c/go/+/581915
Auto-Submit: Than McIntosh <thanm@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Auto-Submit: Quim Muntal <quimmuntal@gmail.com>
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Fixes#66967.
Change-Id: I7b9d62dcb83bad60b2ce74e2e2bf1a36c6a8ae38
Reviewed-on: https://go-review.googlesource.com/c/go/+/581256
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Bypass: Robert Griesemer <gri@google.com>
This patch re-enables the portion of the TestElfBindNow test that
verifies that selected sections are in a read-only segment. Turns out
we can't always check for read-only ".got" on all architectures (on
ppc64le for example ".got" will only turn up if there is CGO use), so
always look for readonly ".dynamic", but only look for readonly ".got"
if the section is present.
Updates #45681.
Change-Id: I4687ae3cf9a81818268925e17700170ba34204a7
Reviewed-on: https://go-review.googlesource.com/c/go/+/581115
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This patch teaches DSE that two LocalAddrs of the same variable
are equal, even if they are from different memory states. This avoids
dependance on a store into the same LocalAddr being added to
loadUse even though the store is unnecessary and is in fact
shadowed.
Fixes#59021
Change-Id: I0ef128b783c4ad6fd2236fa5ff20345b4d31eddb
GitHub-Last-Rev: b80a6b28fb
GitHub-Pull-Request: golang/go#66793
Reviewed-on: https://go-review.googlesource.com/c/go/+/578376
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Joedian Reid <joedian@google.com>
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Reviewed-by: Keith Randall <khr@google.com>
The Windows native stack unwinder incorrectly classifies the next
instruction after the mcall callback call as being part of the function
epilogue, producing a wrong call stack.
Add a NOP after the callback call to work around this issue.
Fixes#67007.
Change-Id: I6017635da895b272b1852391db9a255ca69e335d
Reviewed-on: https://go-review.googlesource.com/c/go/+/581335
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Change-Id: I0c2f921389416ab222b84f77699fd4b3246ef0e0
Reviewed-on: https://go-review.googlesource.com/c/go/+/581776
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
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Change-Id: Ib2e77cff4c10f66316295cbd67f52606cbf9972b
GitHub-Last-Rev: 088c033b2d
GitHub-Pull-Request: golang/go#67032
Reviewed-on: https://go-review.googlesource.com/c/go/+/581675
Auto-Submit: Keith Randall <khr@golang.org>
Commit-Queue: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
Change-Id: Ie2b7c1324ec7947c6ff43187dda99b83bcb64f08
Reviewed-on: https://go-review.googlesource.com/c/go/+/581775
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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It is not neccessary to download a newer toolchain to display the path
to GOMOD or GOWORK.
Fixes: #61455
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Change-Id: I0b031651ad9bfeb5565361ecaff6908640ccf9c8
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The overall time package tests increase from 3.85s to 4.85s on my laptop.
But they should be less flaky, and the time is spent sleeping, so it won't
slow down the overall machine running multiple package tests in
parallel.
For #66322.
Change-Id: I66d6647c389c943b53045e8836ede4ba3d4670c7
Reviewed-on: https://go-review.googlesource.com/c/go/+/581315
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If the range expression is a numeric constant, the
range expression is also not evaluated.
Change-Id: I97201e5c136d3d1a87ed1500b19b7199b30bc9ff
Reviewed-on: https://go-review.googlesource.com/c/go/+/581298
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Change-Id: I302368c17fbb6983bd14ab72784076e548ed8829
Reviewed-on: https://go-review.googlesource.com/c/go/+/581475
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Well-formed JPEG images will not have garbage bytes. However, for
corrupted JPEG images, the RST (restart) mechanism is specifically
designed so that a decoder can re-synchronize to an upcoming restartable
MCU (Minimum Coded Unit, e.g. 16x16 block of pixels) boundary and resume
decoding. Even if the resultant image isn't perfect, a 98%-good image is
better than a fatal error.
Every JPEG marker is encoded in two bytes, the first of which is 0xFF.
There are 8 possible RST markers, cycling as "0xFF 0xD0", "0xFF 0xD1",
..., "0xFF 0xD7". Suppose that, our decoder is expecting "0xFF 0xD1".
Before this commit, Go's image/jpeg package would accept only two
possible inputs: a well-formed "0xFF 0xD1" or one very specific pattern
of spec non-compliance, "0xFF 0x00 0xFF 0xD1".
After this commit, it is more lenient, similar to libjpeg's jdmarker.c's
next_marker function.
2dfe6c0fe9/jdmarker.c (L892-L935)
The new testdata file was created by:
$ convert video-001.png a.ppm
$ cjpeg -restart 2 a.ppm > video-001.restart2.jpeg
$ rm a.ppm
Fixes#40130
Change-Id: Ic598a5f489f110d6bd63e0735200fb6acac3aca3
Reviewed-on: https://go-review.googlesource.com/c/go/+/580755
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No need for Unalias or under calls for this predicate.
Change-Id: Idcdcda3e153d829ee5b26ad112ccfda3f4efedde
Reviewed-on: https://go-review.googlesource.com/c/go/+/581255
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Reviewed-by: Robert Findley <rfindley@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Robert Griesemer <gri@google.com>
This method returns the type on the right-hand side of an
alias declaration such as type L = R.
Fixes#66559
Change-Id: I396f2d999680ad251f47cdde20856ae20fc1c40a
Reviewed-on: https://go-review.googlesource.com/c/go/+/581615
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Alan Donovan <adonovan@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
If there is a crash in LookupFunc (which has occurred a few times now),
this ensures that we log the offending symbol before crashing.
For #67016.
Change-Id: I0119597de2be3d1b97c41a9361273d1feb90ec11
Reviewed-on: https://go-review.googlesource.com/c/go/+/581437
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
