Alex Bozhenko [Wed, 7 Feb 2024 15:19:06 +0000 (15:19 +0000)]
cmd/fix: support go versions with patch release
Support go version with patch release(e.g. 1.21.0)
and release candidates(e.g. 1.21rc1)
when parsing the go version in the fix command
by using new "go/version" package.
guoguangwu [Thu, 22 Feb 2024 01:25:52 +0000 (01:25 +0000)]
go/doc: fix typo in comment
Change-Id: Idcfd649b8b8c8b47f5622702969bf2d43aa57354
GitHub-Last-Rev: cd38bee1917377a5057d6dd7c911c55e79c59eae
GitHub-Pull-Request: golang/go#65835
Reviewed-on: https://go-review.googlesource.com/c/go/+/565516
TryBot-Bypass: Robert Griesemer <gri@google.com> Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com> Reviewed-by: qiulaidongfeng <2645477756@qq.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
Kir Kolyshkin [Thu, 16 Nov 2023 09:42:39 +0000 (01:42 -0800)]
os: make FindProcess use pidfd on Linux
Amend FindProcess to use pidfdFind, and make it return ErrProcessDone
if pidfdFind is used and the process is not found.
Since this is a change in API, introduce GODEBUG osfinderr=0 setting
to disable the feature.
Change-Id: I724c6f622f0c99f21a70b864cf7cf2b8836869ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/542699
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Than McIntosh <thanm@google.com>
Robert Griesemer [Wed, 21 Feb 2024 20:54:10 +0000 (12:54 -0800)]
go/types, types2: handle Alias types in substitution
Fixes #65854.
For #65778. // for x/tools/cmd/gotype
Change-Id: I67d4644b28e831926fc6c233098aa1755c57162f
Reviewed-on: https://go-review.googlesource.com/c/go/+/565835
Auto-Submit: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Robert Findley <rfindley@google.com> Reviewed-by: Robert Griesemer <gri@google.com>
Kir Kolyshkin [Wed, 13 Sep 2023 08:07:10 +0000 (01:07 -0700)]
os: make use of pidfd on linux
Use Process.handle field to store pidfd, and make use of it. Only use
pidfd functionality if all the needed syscalls are available.
1. StartProcess: obtain the pidfd from the kernel, if available,
using the functionality added by CL 520266. Note we could not modify
syscall.StartProcess to return pidfd directly because it is a public
API and its callers do not expect it, so we have to use ensurePidfd
and getPidfd.
2. (*Process).Kill: use pidfdSendSignal, if the syscall is available
and pidfd is known. This is slightly more complicated than it should
be, since the syscall can be blocked by e.g. seccomp security policy,
therefore the need for a function to check if it's actually working,
and a soft fallback to kill. Perhaps this precaution is not really
needed.
3. (*Process).Wait: use pidfdWait, if available, otherwise fall back to
using waitid/wait4. This is also more complicated than expected due
to struct siginfo_t idiosyncrasy.
NOTE pidfdSendSignal and pidfdWait are used without a race workaround
(blockUntilWaitable and sigMu, added by CL 23967) because with pidfd,
PID recycle issue doesn't exist (IOW, pidfd, unlike PID, is guaranteed
to refer to one particular process) and thus the race doesn't exist
either.
For #62654.
Updates #13987.
Change-Id: I22ebcc7142b16a3a94c422d2f32504d1a80e8a8f Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/528438
TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Michael Pratt <mpratt@google.com> Reviewed-by: Michael Knyszek <mknyszek@google.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
SetCrashOutput dup's the input file for safety, but I don't think that
the docs are very clear about what the caller can/should do with f. "it
does not close the previous file" is particularly confusing, as it does
close the previous FD (but not the previous passed os.File).
Expand and attempt to clarify the explanation, borrowing wording from
net.FileConn, which also dup's the input os.File.
For #42888.
Change-Id: I1c96d2dce7899e335d8f1cd464d2d9b31aeb4e5e
Reviewed-on: https://go-review.googlesource.com/c/go/+/559800 Reviewed-by: Alan Donovan <adonovan@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Mateusz Poliwczak [Wed, 21 Feb 2024 17:18:43 +0000 (17:18 +0000)]
net: support context cancellation in acquireThread
acquireThread is already waiting on a channel, so
it can be easily wired up to support context cancellation.
This change will make sure that contexts that are
cancelled at the acquireThread stage (when the limit of
threads is reached) do not queue unnecessarily and cause
an unnecessary cgo call that will be soon aborted by
the doBlockingWithCtx function.
Updates #63978
Change-Id: I8ae4debd51995637567d8f51c6f1ed60f23d6c0c
GitHub-Last-Rev: 4189b9faf07c073a2ca440becee07b6aa9c4e795
GitHub-Pull-Request: golang/go#63985
Reviewed-on: https://go-review.googlesource.com/c/go/+/539360
Auto-Submit: Ian Lance Taylor <iant@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Bryan Mills <bcmills@google.com>
Commit-Queue: Ian Lance Taylor <iant@golang.org>
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Robert Griesemer [Wed, 21 Feb 2024 00:14:42 +0000 (16:14 -0800)]
go/types: generate typestring.go from types2 source
This CL reduces the amount of code that needs to be maintained
manually by about 500 LOC.
Change-Id: I643bea15203f7a916ef78b2738f125aa5b312eed
Reviewed-on: https://go-review.googlesource.com/c/go/+/565438 Reviewed-by: Robert Findley <rfindley@google.com> Reviewed-by: Robert Griesemer <gri@google.com>
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Auto-Submit: Robert Griesemer <gri@google.com>
Robert Griesemer [Tue, 20 Feb 2024 23:40:44 +0000 (15:40 -0800)]
go/types: generate conversions.go from types2 source
This CL reduces the amount of code that needs to be maintained
manually by about 300 LOC.
Change-Id: I749e47668e90e77e99109005fbe19045d4a5ad29
Reviewed-on: https://go-review.googlesource.com/c/go/+/565437 Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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Robert Griesemer [Thu, 8 Feb 2024 23:13:11 +0000 (15:13 -0800)]
go/types: generate builtins_test.go from types2 source
Added new conversion functions to generate_test.go to handle the
translation of builtins_test.go.
Simplify some existing code by using the renameMap mechanism.
This CL reduces the amount of code that needs to be maintained
manually by about 250 LOC.
Change-Id: I1a455c1921512fb3647fd92ac7c278b1b80ea884
Reviewed-on: https://go-review.googlesource.com/c/go/+/562837 Reviewed-by: Robert Findley <rfindley@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Robert Griesemer [Thu, 8 Feb 2024 22:29:26 +0000 (14:29 -0800)]
go/types: generate builtins.go from types2 source
Minor changes to types2.builtin.go to simplify automatic translation.
Added new conversion functions to generate_test.go to handle the
translation of builtins.go.
While at it, added additional helper functions to generate_test.go
and simplified some of the existing conversion functions.
This CL reduces the amount of code that needs to be maintained
manually by about 1000 LOC.
Change-Id: I1bd5c8eda0c0194a0b47e69882d2b987d91eef50
Reviewed-on: https://go-review.googlesource.com/c/go/+/562835
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Auto-Submit: Robert Griesemer <gri@google.com>
Michael Matloob [Fri, 16 Feb 2024 20:01:47 +0000 (15:01 -0500)]
cmd/go: change the naming of flag counters
We're making the following changes:
* From cmd/go/flag-<flagname> to cmd/go/flag:<flagname>
* From cmd/go/<subcommand-name>:flag-<flagname> to
cmd/go/flag:<subcommand-name>-<flagname>
* From cmd/go:subcommand-<subcommand-name> to
cmd/go/subcommand:<subcommand-name>
Change-Id: Id682840bb4330fceeb070fc69203d0bfb03f3a29
Reviewed-on: https://go-review.googlesource.com/c/go/+/564857
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Bryan Mills <bcmills@google.com> Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com> Reviewed-by: Robert Findley <rfindley@google.com>
Michael Matloob [Tue, 20 Feb 2024 21:13:33 +0000 (16:13 -0500)]
cmd/go/internal/modcmd: correctly filter out main modules in verify
This change fixes a bug where we incorrectly filtered out the main
modules from the beginning of the build list before verifying them. We
made the assumption that the first MainModules.Len() entries of the
build list were the main modules, but now it can contain the go and
toolchain version entries, so removing the first MainModules.Len()
entries could leave main module names in the build list if any of
their names sorted after the string 'go'.
Note: Round towards zero (RTZ) by default for all these instructions above.
Change-Id: I491e522e14d721e24aa7f528ee0c4640c54c5808
Reviewed-on: https://go-review.googlesource.com/c/go/+/504736 Reviewed-by: Joel Sing <joel@sing.id.au>
Run-TryBot: M Zhuo <mengzhuo1203@gmail.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
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Andy Pan [Tue, 20 Feb 2024 08:17:06 +0000 (16:17 +0800)]
net: harmonize the time units used for TCP keep-alive on DragonFly and other UNIX's by seconds
Follows up CL 542275
Fixes #65809
Change-Id: Iba01efb4ff0fbb7a67840875322f0338337ebb78
Reviewed-on: https://go-review.googlesource.com/c/go/+/565315 Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Bryan Mills <bcmills@google.com>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
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Cherry Mui [Tue, 20 Feb 2024 20:05:29 +0000 (15:05 -0500)]
cmd/compile: make jump table symbol static
The jump table symbol is accessed only from the function symbol
(in the same package), so it can be static. Also, if the function
is DUPOK and it is, somehow, compiled differently in two different
packages, the linker must choose the jump table symbol associated
to the function symbol it chose. Currently the jump table symbol
is DUPOK, so that is not guaranteed. Making it static will
guarantee that, as each copy of the function symbol refers to its
own jump table symbol.
For #65783.
Change-Id: I27e051d01ef585d07700b75d4dfac5768f16441e
Reviewed-on: https://go-review.googlesource.com/c/go/+/565535 Reviewed-by: Keith Randall <khr@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Keith Randall <khr@golang.org>
types2 handles all constant-related bounds checks in user Go code now,
so it's safe to remove the check from typecheck, avoid the inconsistency
with type parameter.
Fixes #65417
Change-Id: I82dd197b78e271725d132b5a20450ae3e90f9abc
Reviewed-on: https://go-review.googlesource.com/c/go/+/560575 Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Robert Griesemer <gri@google.com>
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Than McIntosh [Tue, 20 Feb 2024 16:49:43 +0000 (16:49 +0000)]
cmd/go/testdata/script: add darwin skips for selected buildrepro tests
Skip two build reproducibility tests (build_issue48319 and
build_plugin_reproducible) on Darwin if GO_BUILDER_NAME is set until
issue 64947 can be resolved; on the LUCI darwin longtest builder the
more contemporary version of Xcode is doing things that are unfriendly
to Go's build reproducibility.
For #64947.
Change-Id: Iebd433ad6dfeb84b6504ae9355231d897d8ae174
Reviewed-on: https://go-review.googlesource.com/c/go/+/565376 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Michael Pratt <mpratt@google.com>
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Mauri de Souza Meneguzzo [Fri, 16 Feb 2024 23:24:12 +0000 (23:24 +0000)]
internal/msan: add new package
The internal/msan package contains helper functions for manually
instrumenting code for the memory sanitizer. It exports the private
msan routines in runtime unconditionally, making the functions a
no-op if the build flag "msan" is not present.
For #64611
Change-Id: If43f29e112ac79a47083c9dbdf2c61a0641e80b1
GitHub-Last-Rev: 0a644bd6f10a9052c33992f1c56b1f0037ca98c7
GitHub-Pull-Request: golang/go#64637
Reviewed-on: https://go-review.googlesource.com/c/go/+/548676 Reviewed-by: Austin Clements <austin@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
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Joel Sing [Fri, 16 Feb 2024 15:21:11 +0000 (02:21 +1100)]
log/slog: correct formatting
Code added in CL #558755 and CL #561315 (both via github) were not
appropriately formatted. Run gofmt to address this.
Change-Id: Iaf7abca9c2ad4e0fabecc417234b743b6b15e9c9
Reviewed-on: https://go-review.googlesource.com/c/go/+/564719
Run-TryBot: Joel Sing <joel@sing.id.au>
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Mateusz Poliwczak [Tue, 20 Feb 2024 17:15:51 +0000 (17:15 +0000)]
net: mention the cgo thread limit in package docs
Updates #63978
Change-Id: I39a5c812b4f604baf4ca5ffcff52b8dc17d4990d
GitHub-Last-Rev: 4ab6e262f4fd37ff32d6b3eb756fea187e5d6e53
GitHub-Pull-Request: golang/go#63990
Reviewed-on: https://go-review.googlesource.com/c/go/+/539361 Reviewed-by: Ian Lance Taylor <iant@google.com>
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Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Roland Shoemaker <roland@golang.org>
Robert Griesemer [Thu, 8 Feb 2024 23:35:22 +0000 (15:35 -0800)]
cmd/compile/internal/types2: use ExprString instead of syntax.String
This further reduces the differences between go/types and types2.
Change-Id: I1426c2f7c58e2d1123d93f68fbdda01b0cc2d46e
Reviewed-on: https://go-review.googlesource.com/c/go/+/562836
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Paul E. Murphy [Wed, 14 Feb 2024 22:42:27 +0000 (16:42 -0600)]
cmd/cgo/internal/test: disable issue8694 and issue9510 on ppc64x with internal linking
These link in libgcc functions which require more advanced handling
of small toc relocations. The internal linker is not capable of
placing these functions to ensure they are always resolvable.
Change-Id: Idd4a0264bfbbd7016472120dc4bee84814e8c2eb
Reviewed-on: https://go-review.googlesource.com/c/go/+/564235
Run-TryBot: Paul Murphy <murp@ibm.com> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
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hi-rustin [Mon, 19 Feb 2024 15:22:37 +0000 (15:22 +0000)]
runtime/pprof: update outdated google/pprof link
Google/pprof changed the master branch to main, so it might be better to update it to the latest.
Change-Id: Id29aca80a9a83a9c10da215180ad65816bc88936
GitHub-Last-Rev: 0023c28dc0d84a2529e24c694acfed7a363d2d0b
GitHub-Pull-Request: golang/go#65792
Reviewed-on: https://go-review.googlesource.com/c/go/+/565177
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Shang Ding [Sat, 17 Feb 2024 18:21:54 +0000 (12:21 -0600)]
testing/fstest: return base name from mapfs FileInfo.Name
Change-Id: I5a68389a68875dbb2f6875de3f64f63dd7ca1af7
Reviewed-on: https://go-review.googlesource.com/c/go/+/565055
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Change-Id: Ifdc6e22d52317cdb90a607ac4d72437d4d6b33e8
Reviewed-on: https://go-review.googlesource.com/c/go/+/564716
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Andy Pan [Fri, 2 Feb 2024 03:22:57 +0000 (11:22 +0800)]
runtime: use eventfd as the event wait/notify mechanism for epoll
Fixes #65443
Change-Id: I9ad4689b36e87ee930d35a38322a8797896483b4
Reviewed-on: https://go-review.googlesource.com/c/go/+/560615
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Mauri de Souza Meneguzzo [Sun, 18 Feb 2024 12:23:20 +0000 (12:23 +0000)]
regexp/syntax: regenerate docs with mksyntaxgo
This makes the docs up-to-date by running doc/mksyntaxgo from the google/re2 repo.
Change-Id: I80358eed071e7566c85edaeb1cc5514a6d8c37a7
GitHub-Last-Rev: 0f8c8df4f213ce89fbea89e81f0ea3babd59d38f
GitHub-Pull-Request: golang/go#65249
Reviewed-on: https://go-review.googlesource.com/c/go/+/558136 Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Julian Tibble [Wed, 14 Feb 2024 13:24:52 +0000 (13:24 +0000)]
net/http: add missing call to decConnsPerHost
A recent change to Transport.dialConnFor introduced an early return that
skipped dialing. This path did not call decConnsPerHost, which can cause
subsequent HTTP calls to hang if Transport.MaxConnsPerHost is set.
Fixes: #65705
Change-Id: I157591114b02a3a66488d3ead7f1e6dbd374a41c
Reviewed-on: https://go-review.googlesource.com/c/go/+/564036 Reviewed-by: Damien Neil <dneil@google.com>
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Andy Pan [Tue, 14 Nov 2023 15:56:51 +0000 (23:56 +0800)]
net: add KeepAliveConfig and implement SetKeepAliveConfig
Fixes #62254
Fixes #48622
Change-Id: Ida598e7fa914c8737fdbc1c813bcd68adb5119c3
Reviewed-on: https://go-review.googlesource.com/c/go/+/542275 Reviewed-by: Michael Knyszek <mknyszek@google.com>
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kkhaike [Sat, 16 Dec 2023 10:08:16 +0000 (18:08 +0800)]
net: prevent unintended retries upon receiving an empty answer response from the DNS server.
CL https://golang.org/cl/37879 migrates DNS message parsing to the golang.org/x/net/dns/dnsmessage package. However, during the modification of the "lame referral" error check introduced by CL https://golang.org/cl/22428, a condition was overlooked. This omission results in unexpected retries when a DNS server returns an empty response (not an invalid response, but one that includes an additional section).
Fixes #57697
Fixes #64783
Change-Id: I203896aa2902c305569005c1712fd2f9f13a9b6b
Reviewed-on: https://go-review.googlesource.com/c/go/+/550435
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aimuz [Sat, 18 Nov 2023 03:35:07 +0000 (03:35 +0000)]
net/netip: optimize parseIPv4 and refactor IPv6 embedded IPv4 parsing
This change refactors the parseIPv4 function to extract a new helper
function, parseIPv4Fields, which is now used by both parseIPv4 and
parseIPv6 functions. The extraction of this logic into a separate
helper function removes code duplication and improves the performance
of parsing IPv6 addresses that contain an embedded IPv4 address.
Additionally, the error handling within the IP address parsing logic
has been streamlined to provide clearer messages when encountering
incorrect formats or values in IPv4 fields.
Change-Id: I403cb76f449a0bf203a821294df25d3c9031df4c
GitHub-Last-Rev: 917f78ce4ef2a4156d0291c36047689de1764c3f
GitHub-Pull-Request: golang/go#64219
Reviewed-on: https://go-review.googlesource.com/c/go/+/543179 Reviewed-by: Damien Neil <dneil@google.com> Reviewed-by: Than McIntosh <thanm@google.com>
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Olivier Mengué [Tue, 16 Jan 2024 22:30:12 +0000 (23:30 +0100)]
hash/crc32: fix code generator to use the Go standard
Apply the Go standard for code generation (https://go.dev/s/generatedcode)
to generated crc32_table_ppc64le.s despites this is not
generated Go but Assembly. This is to help prevent changes like CL 478976
that changed the generated output without fixing the generator.
Add gen.go to allow to launch code generation with "go generate".
Change-Id: I8671284265425826c8620dbec055519b992fa04e
Reviewed-on: https://go-review.googlesource.com/c/go/+/556335
Auto-Submit: Michael Pratt <mpratt@google.com> Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Mateusz Poliwczak [Sat, 10 Feb 2024 18:52:27 +0000 (18:52 +0000)]
net: move go/cgo resolver forcing functions to one file
The forceGoDNS/forceCgoDNS functions currently return nil
or an empty func on plan9, but they don't have to, because
we already support go resolver there (Dial field required).
Change-Id: Iba6211ca0235874f39e5fcacb3932bb16768c702
GitHub-Last-Rev: 4072ad4a05366a03749e8cfcf27efb9f198aacec
GitHub-Pull-Request: golang/go#63545
Reviewed-on: https://go-review.googlesource.com/c/go/+/534938 Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com>
Commit-Queue: Ian Lance Taylor <iant@golang.org>
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Auto-Submit: Ian Lance Taylor <iant@golang.org>
runtime: use a high res timer to signal io completion ports on windows
GetQueuedCompletionStatusEx has a ~16ms timeout resolution. Use a
WaitCompletionPacket associated with the I/O Completion Port (IOCP)
and a high resolution timer so the IOCP is signaled on timer expiry,
therefore improving the GetQueuedCompletionStatusEx timeout resolution.
BenchmarkSleep from the time package shows an important improvement:
goos: windows
goarch: amd64
pkg: time
cpu: Intel(R) Core(TM) i7-10850H CPU @ 2.70GHz
│ old.txt │ new.txt │
│ sec/op │ sec/op vs base │
Sleep-12 1258.5µ ± 5% 250.7µ ± 1% -80.08% (p=0.000 n=20)
Fixes #44343.
Change-Id: I79fc09e34dddfc49e0e23c3d1d0603926c22a11d
Reviewed-on: https://go-review.googlesource.com/c/go/+/488675 Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
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Daniel Martí [Sun, 11 Feb 2024 21:40:26 +0000 (21:40 +0000)]
math/rand/v2: use a doc link for crypto/rand
It's easier to go look at its documentation when there's a link.
Change-Id: Iad6c1aa1a3f4b9127dc526b4db473239329780d6
Reviewed-on: https://go-review.googlesource.com/c/go/+/563255 Reviewed-by: Ian Lance Taylor <iant@google.com>
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qmuntal [Mon, 12 Feb 2024 11:38:37 +0000 (12:38 +0100)]
runtime: use the right number of parameters in syscall_SyscallX on Windows
The syscall_SyscallX functions currently discard the nargs parameter
when calling syscall_SyscallN. This precludes some optimizations
down the line. For example, on amd64, a syscall that takes 0 arguments
don't need to set any of the params passing registers (CX, DX, R8, and
R9).
This CL updates all syscall_SyscallX functions so they call
syscall_SyscallN with an argument slice of the right length.
While here, remove the hack in syscall_SyscallN to support less than 4
arguments, and update instead asmstdcall on amd64 to properly handle
this case.
Change-Id: I0328e14f34c2b000fde06cc6a579b09e8c32f2b9
Reviewed-on: https://go-review.googlesource.com/c/go/+/563315
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ALX99 [Sat, 17 Feb 2024 04:43:34 +0000 (04:43 +0000)]
context: update doc comment to link to context interface
Linking to the Context interface in the WithCancel doc comment makes
it more consistent with the WithDeadline and WithTimeout doc comments.
Change-Id: Ic935c63e8262784be5f3564816402221ba2fbd63
GitHub-Last-Rev: 9c6bb607a94f6f4cd27cc3f5e39c192e088ab386
GitHub-Pull-Request: golang/go#65768
Reviewed-on: https://go-review.googlesource.com/c/go/+/564996 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com>
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Jes Cok [Fri, 16 Feb 2024 21:16:29 +0000 (21:16 +0000)]
reflect: make Value.Comparable return true for nil interface value
Fixes #65718
Change-Id: I0b3edf9085f2d71f915bdf8ff9d312509b438c5f
GitHub-Last-Rev: 9fb1ca1a631c648d1f38f75b1fcb2f878048706b
GitHub-Pull-Request: golang/go#65750
Reviewed-on: https://go-review.googlesource.com/c/go/+/564795
Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
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Keith Randall [Wed, 13 Dec 2023 21:45:05 +0000 (13:45 -0800)]
internal/abi: get rid of itab blank field
We don't need it anymore, as we're accessing all the field offsets
symbolically.
This won't affect 64-bit, but it makes itabs on 32-bit 4 bytes smaller.
Change-Id: I7fb937813111476fd5ab03005b248ea7bb962cf6
Reviewed-on: https://go-review.googlesource.com/c/go/+/549517 Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@google.com>
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Keith Randall [Wed, 13 Dec 2023 21:20:01 +0000 (13:20 -0800)]
cmd/compile: use symbolic offsets of fields in internal/abi.ITab
After this CL, we can reorder or pad internal/abi.ITab fields at will
(keeping Fun last, and updating ITabTypeOff correctly) without
breaking anything.
Change-Id: Ib7bb5828519813e0d1aa36be5092f96fcd62b3be
Reviewed-on: https://go-review.googlesource.com/c/go/+/549516 Reviewed-by: Keith Randall <khr@google.com>
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Cherry Mui [Fri, 9 Feb 2024 19:17:18 +0000 (14:17 -0500)]
cmd/dist,cmd/go: define assembly macros, handle GOARM value with soft/hardfloat
CL 525637 added GOARM_x assembly macros based on GOARM value. But
it did not define the macro in cmd/dist, so the macro is not set
during bootstrapping. This CL defines them.
With CL 514907, cfg.GOARM can also take a soft/hardfloat suffix,
like "7,hardfloat". Handle that case.
For #65601.
Change-Id: I60ffe7e8b623ae693d91d6e8595067a6f76565b3
Reviewed-on: https://go-review.googlesource.com/c/go/+/562995
Run-TryBot: Cherry Mui <cherryyz@google.com> Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@google.com>
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Cherry Mui [Fri, 16 Feb 2024 15:58:56 +0000 (10:58 -0500)]
runtime/internal/atomic: correct GOARM=7 guard at a DMB instruction
CL 525637 changed to the guard of DMB instruction from the
compiled-in runtime.goarm value to GOARM_7 macro and CPU feature
detection. It missed a place where runtime.goarm is loaded to a
register and reused later. This CL corrects the condition.
Fixes #65601.
Change-Id: I2ddefd03a1eb1048dbec0254c6e234c65b054279
Reviewed-on: https://go-review.googlesource.com/c/go/+/564855
Run-TryBot: Cherry Mui <cherryyz@google.com>
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Sam Thanawalla [Thu, 8 Feb 2024 18:32:55 +0000 (18:32 +0000)]
cmd/go: show Sum/GoModSum when listing modules
Fixes #52792
Tested: Ran go test cmd/go
Change-Id: Ib7006256f4dca9e9fbfce266c00253c69595d6ab
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sivchari [Wed, 2 Aug 2023 02:55:17 +0000 (02:55 +0000)]
database/sql/driver: add a new test case for type t
Change-Id: I38bb68570f7f097a6dfeef1c75896396992d81f7
GitHub-Last-Rev: 10ba48a546956fa2a5b602680fb312638aade92d
GitHub-Pull-Request: golang/go#53706
Reviewed-on: https://go-review.googlesource.com/c/go/+/416234 Reviewed-by: Than McIntosh <thanm@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
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Cherry Mui [Thu, 15 Feb 2024 22:05:05 +0000 (17:05 -0500)]
cmd/link: replace function pointers to static calls in loadelf
When transitioning between the old object loader and the new
object loader, to support both we made loadelf to take symbol
loading functions as function pointers. Now we only have the new
object loader. Change the function pointers back to static calls.
Change-Id: Ia623a6010376a3d7c0be5eacae002144d956f28a
Reviewed-on: https://go-review.googlesource.com/c/go/+/564635 Reviewed-by: Than McIntosh <thanm@google.com>
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Cherry Mui [Tue, 6 Feb 2024 23:08:34 +0000 (18:08 -0500)]
cmd/link: add -randlayout flag to randomize function ordering
Sometimes we found that benchmark results may strongly depend on
the ordering of functions laid out in the binary. This CL adds a
flag -randlayout=seed, which randomizes the function layout (in a
deterministic way), so can verify the benchmark results against
different function ordering.
Change-Id: I85f33881bbfd4ca6812fbd4bec00bf475755a09e
Reviewed-on: https://go-review.googlesource.com/c/go/+/562157 Reviewed-by: David Chase <drchase@google.com>
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Joel Sing [Thu, 1 Feb 2024 12:58:54 +0000 (23:58 +1100)]
cmd/compile: improve rotations for riscv64
Enable canRotate for riscv64, enable rotation intrinsics and provide
better rewrite implementations for rotations. By avoiding Lsh*x64
and Rsh*Ux64 we can produce better code, especially for 32 and 64
bit rotations. By enabling canRotate we also benefit from the generic
rotation rewrite rules.
Change-Id: I1a2036fdc57cf88ebb6617eb8d92e1d187e183b2
Reviewed-on: https://go-review.googlesource.com/c/go/+/560315 Reviewed-by: M Zhuo <mengzhuo1203@gmail.com>
Run-TryBot: Joel Sing <joel@sing.id.au>
TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Mark Ryan <markdryan@rivosinc.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: David Chase <drchase@google.com>
Jin Lin [Thu, 8 Feb 2024 20:52:07 +0000 (12:52 -0800)]
cmd/compile: update the incorrect assignment of call site offset.
The call site calculation in the previous version is incorrect. For
the PGO preprocess file, the compiler should directly use the call
site offset value. Additionly, this change refactors the preprocess
tool to clean up unused fields including startline, the flat and the
cum.
Change-Id: I7bffed3215d4c016d9a9e4034bfd373bf50ab43f
Reviewed-on: https://go-review.googlesource.com/c/go/+/562795 Reviewed-by: Cherry Mui <cherryyz@google.com>
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Joe Tsai [Tue, 13 Feb 2024 23:34:26 +0000 (15:34 -0800)]
log/slog: document atomicity guarantees and ordering limitations of handlers
The new wording is slightly more strict than before in that
it guarantees each Write only contains exactly one Record,
while the previous wording opened up the possibility for
multiple Records in a Write call.
We also add a comment about the lack of sorting guarantees for
concurrently logged Records. That is, the obtained lock only covers
the Write call, rather than the combination of the call to time.Now,
JSON/text serialization, and also the Write call.
Change-Id: Ia65c50579215a35a1f5b2952c6954ddb60e7fe66
Reviewed-on: https://go-review.googlesource.com/c/go/+/563976 Reviewed-by: Jonathan Amsterdam <jba@google.com>
TryBot-Bypass: Jonathan Amsterdam <jba@google.com> Reviewed-by: Alan Donovan <adonovan@google.com>
Andy Pan [Sun, 4 Feb 2024 06:50:42 +0000 (14:50 +0800)]
net/http: reject requests with invalid Content-Length headers
According to RFC 9110 and RFC 9112, invalid "Content-Length" headers
might involve request smuggling or response splitting, which could
also cause security failures. Currently, `net/http` ignores all
"Content-Length" headers when there is a "Transfer-Encoding" header and
forward the message anyway while other mainstream HTTP implementations
such as Apache Tomcat, Nginx, HAProxy, Node.js, Deno, Tornado, etc. reject
invalid Content-Length headers regardless of the presence of a
"Transfer-Encoding" header and only forward chunked-encoding messages
with either valid "Content-Length" headers or no "Content-Length" headers.
Fixes #65505
Change-Id: I73af2ee0785137e56c7546a4cce4a5c5c348dbc5
Reviewed-on: https://go-review.googlesource.com/c/go/+/561075
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Dmitri Shuralyov [Wed, 14 Feb 2024 16:52:22 +0000 (11:52 -0500)]
cmd/link/internal/ld: unify OS/SDK versions for macOS linking
Go 1.23 will require macOS 11 Big Sur or later, even on AMD64.
The comment here suggests the main requirement for the OS and
SDK version is to be recent enough not to break Apple signing,
and recent enough not to cause other problems.
For now, this CL simplifies the code by merging the ARM64 and
AMD64 cases into one, given 1.23 will be the first Go release
with a common minimum macOS version for both architectures so
there's no need to treat them separately here.
For #64207.
Change-Id: I821fcb9a2a316de0703833c8a75abcbaa10b17a3
Cq-Include-Trybots: luci.golang.try:gotip-darwin-amd64_11,gotip-darwin-amd64_14,gotip-darwin-arm64_11,gotip-darwin-arm64_13
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Dmitri Shuralyov [Wed, 14 Feb 2024 16:25:03 +0000 (11:25 -0500)]
doc/go1.23: document macOS requirements
For #64207.
For #65614.
Change-Id: Ia5365b4090060e0657c255341751d3e67691f836
Reviewed-on: https://go-review.googlesource.com/c/go/+/563856 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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qmuntal [Thu, 8 Feb 2024 07:46:24 +0000 (08:46 +0100)]
runtime: make netpoll events sources identifiable on Windows
This is another attempt at CL 558895, but without adding stale pollDescs
protection, which deviates from the original goal of the CL and adds
complexity without proper testing.
It is currently not possible to distinguish between a netpollBreak,
an internal/poll WSA operation, and an external WSA operation (as
in #58870). This can cause spurious wakeups when external WSA operations
are retrieved from the queue, as they are treated as netpollBreak
events.
This CL makes use of completion keys to identify the source of the
event.
While here, fix TestWSASocketConflict, which was not properly
exercising the "external WSA operation" case.
Change-Id: I91f746d300d32eb7fed3c8f27266fef379360d98
Reviewed-on: https://go-review.googlesource.com/c/go/+/561895 Reviewed-by: Than McIntosh <thanm@google.com>
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qmuntal [Mon, 12 Feb 2024 10:04:24 +0000 (11:04 +0100)]
net: skip TestModeSocket on older Windows versions
CL 561937 taught os.Stat about IO_REPARSE_TAG_AF_UNIX and added a
test for it, TestModeSocket. This test fails on Windows older than
10.0.17063, in which AF_UNIX support was added. Skip the test on those
versions.
Mauri de Souza Meneguzzo [Wed, 7 Feb 2024 22:51:00 +0000 (22:51 +0000)]
internal/asan: add new package
The internal/asan package contains helper functions for manually
instrumenting code for the address sanitizer. It reexports the asan
routines in runtime unconditionally, making the functions a no-op if the
build flag "asan" is not present.
For #64611
Change-Id: Ie79e698aea7a6d969afd2a5f008c084c9545b1a5
GitHub-Last-Rev: e658670c146adb5a5496afe4a2425dd5291fd7ac
GitHub-Pull-Request: golang/go#64635
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Ian Lance Taylor [Mon, 12 Feb 2024 03:54:52 +0000 (19:54 -0800)]
internal/safefilepath: use bytealg to search for zero byte
Change-Id: I20e72d421d89095c460495001969291b99cdf59e
Reviewed-on: https://go-review.googlesource.com/c/go/+/563139 Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Damien Neil <dneil@google.com>
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Rob Pike [Sun, 21 Jan 2024 06:20:02 +0000 (17:20 +1100)]
fmt: document how %#g handles infinities and NaNs
The %#g format prints a "Go-syntax representation", but there is
no such thing for IEEE754 infinities and NaNs, so just document
what happens, which is that it prints +Inf, -Inf, or NaN. We could
show something like math.Inf(1) and math.Nan(), but that doesn't
sit right, and anyway for NaNs you can't even recover the original
value. Simpler and more honest to give up.
Fixes #51486
Change-Id: I8d4e8186f5d7acc3e0e7b51d0b322142908ea0a2
Reviewed-on: https://go-review.googlesource.com/c/go/+/557235
Run-TryBot: Rob Pike <r@golang.org> Reviewed-by: Russ Cox <rsc@golang.org>
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Michael Pratt [Mon, 12 Feb 2024 19:32:22 +0000 (14:32 -0500)]
runtime/cgo: add note about default stack bounds
The default case in x_cgo_getstackbound does not actually get the stack bound of
the current thread, but estimates the bound based on the default stack size. Add
a comment noting this.
Change-Id: I7d886461f0bbc795834bed37b554417cf3837a2d
Reviewed-on: https://go-review.googlesource.com/c/go/+/563376
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Jes Cok [Sat, 10 Feb 2024 01:25:05 +0000 (01:25 +0000)]
internal/xcoff: change zeroReaderAt to nobitsSectionReader for .bss with all 0s
Fixes #63337
Change-Id: I239315047e6e4325e2f471108fd764f8dbb7d5b2
GitHub-Last-Rev: cacdf0a279451ab97e6e6ce3fe0d3a025f5ce3aa
GitHub-Pull-Request: golang/go#64952
Reviewed-on: https://go-review.googlesource.com/c/go/+/553616
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Joe Tsai [Sat, 13 Jan 2024 02:13:14 +0000 (18:13 -0800)]
reflect: optimize TypeFor for non-interface types
The reflect.Type.Elem method is somewhat slow,
which is unfortunate since the reflect.TypeOf((*T)(nil)).Elem()
trick is only needed if T is an interface.
Optimize for concrete types by doing the faster reflect.TypeOf(v)
call first and only falling back on the Elem method if needed.
Performance:
name old time/op new time/op delta
TypeForString-24 9.10ns ± 1% 1.78ns ± 2% -80.49% (p=0.000 n=10+10)
TypeForError-24 9.55ns ± 1% 9.78ns ± 1% +2.39% (p=0.000 n=10+9)
Updates #60088
Change-Id: I2ae76988c9a3dbcbae10d2c19b55db3c8d4559bf
Reviewed-on: https://go-review.googlesource.com/c/go/+/555597
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qmuntal [Wed, 7 Feb 2024 16:40:24 +0000 (17:40 +0100)]
os: add os.ModeSocket support to os.Stat on windows
Unix sockets are identified by the IO_REPARSE_TAG_AF_UNIX reparse tag.
Teach fileStat.Mode() to recognize this tag and set the os.ModeSocket
bit in such case.
Note that there is a bug starting in Windows 19H1 until 20H1 that
makes the IO_REPARSE_TAG_AF_UNIX tag not being set for unix sockets.
This CL doesn't provide a workaround for this bug.
Fixes #33357.
Change-Id: Iea8f24b20672c8d4b03f55ef298d128431dc3fac
Reviewed-on: https://go-review.googlesource.com/c/go/+/561937
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Mauri de Souza Meneguzzo [Fri, 9 Feb 2024 11:47:26 +0000 (11:47 +0000)]
runtime/cgo: ignore -Watomic-alignment in gcc_libinit.c
When cross-compiling a cgo program with CC=clang for Linux/ARMv5,
atomic warnings cause build errors, as cgo uses -Werror.
These warnings seem to be harmless and come from the usage of
__atomic_load_n, which is emulated due to the lack of atomic
instructions in armv5.
Fixes #65290
Change-Id: Ie72efb77468f06888f81f15850401dc8ce2c78f9
GitHub-Last-Rev: fbad847b962f6b4599cd843018e79f4b55be097e
GitHub-Pull-Request: golang/go#65588
Reviewed-on: https://go-review.googlesource.com/c/go/+/562348
Auto-Submit: 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: Dmitri Shuralyov <dmitshur@google.com>
Andy Pan [Thu, 1 Feb 2024 03:28:44 +0000 (11:28 +0800)]
io/fs: set ErrInvalid for FS.Open from SubFS when it fails ValidPath
Fixes #65419
Change-Id: I8f9f82ab0387d8bb39aaca4f9e60e36ee15c587d
Reviewed-on: https://go-review.googlesource.com/c/go/+/560137
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com>
Nicolas Hillegeer [Thu, 8 Feb 2024 16:56:33 +0000 (08:56 -0800)]
runtime: call traceAdvance before exiting
This ensures the trace buffers are as up-to-date as possible right
before crashing. It increases the chance of finding the culprit for the
crash when looking at core dumps, e.g. if slowness is the cause for the
crash (monitor kills process).
Fixes #65319.
Change-Id: Iaf5551911b3b3b01ba65cb8749cf62a411e02d9c
Reviewed-on: https://go-review.googlesource.com/c/go/+/562616
Auto-Submit: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Michael Knyszek <mknyszek@google.com>
> Messages carried by UDP are restricted to 512 bytes (not counting
> the IP or UDP headers). Longer messages are truncated and the TC
> bit is set in the header.
However, TCP also have a size limitation of 65535 bytes
> The message is prefixed with a two byte length field which gives
the message length, excluding the two byte length field.
These limitations makes that the maximum possible number of A records
per RRSet is ~ 4090.
There are environments like Kubernetes that may have larger number of
records (5000+) that does not fit in a single message. In this cases,
the DNS server sets the Truncated bit on the message to indicate that
it could not send the full answer despite is using TCP.
We should only retry when the TC bit is set and the connection is UDP,
otherwise, we'll never being able to get an answer and the client will
receive an errNoAnswerFromDNSServer, that is a different behavior than
the existing in the glibc resolver, that returns all the existing
addresses in the TCP truncated response.
Fixes #64896
Signed-off-by: Antonio Ojea <aojea@google.com>
Change-Id: I1bc2c85f67668765fa60b5c0378c9e1e1756dff2
Reviewed-on: https://go-review.googlesource.com/c/go/+/552418 Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Ian Gudger <ian@iangudger.com>
Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Mateusz Poliwczak <mpoliwczak34@gmail.com> Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com> Reviewed-by: Damien Neil <dneil@google.com>
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Paul E. Murphy [Tue, 14 Nov 2023 20:45:21 +0000 (14:45 -0600)]
cmd/internal/obj/ppc64: add new constant optab classifications
Make C_S32CON, C_U32CON, and C_32CON distinct classifiers to allow
more specific matching of 32 bit constants. C_U31CON is added to
support C_S32CON.
Likewise, add C_16CON which is the union of C_S16CON and C_U16CON
classification. This wil allow simplifying MOVD/MOVW optab entries
in a future patch.
Change-Id: I193acc0ded8f3edd91d306e39c3e7e55a9811e04
Reviewed-on: https://go-review.googlesource.com/c/go/+/562346 Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> Reviewed-by: Michael Knyszek <mknyszek@google.com> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Than McIntosh <thanm@google.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
TryBot-Result: Gopher Robot <gobot@golang.org>