For #73126
Change-Id: Ie69cc274e7b59f958c239520318b89ff0141e26b
Reviewed-on: https://go-review.googlesource.com/c/go/+/674315
Reviewed-by: Alan Donovan <adonovan@google.com>
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GroupAttrs is a more efficient version of Group
that takes a slice of Attr values.
Fixes#66365
Change-Id: Ic3046704825e17098f2fea5751f2959dce1073e2
Reviewed-on: https://go-review.googlesource.com/c/go/+/672915
Reviewed-by: Jonathan Amsterdam <jba@google.com>
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This CL adds two related features enabled by default via compatibility
GODEBUGs containermaxprocs and updatemaxprocs.
On Linux, containermaxprocs makes the Go runtime consider cgroup CPU
bandwidth limits (quota/period) when setting GOMAXPROCS. If the cgroup
limit is lower than the number of logical CPUs available, then the
cgroup limit takes precedence.
On all OSes, updatemaxprocs makes the Go runtime periodically
recalculate the default GOMAXPROCS value and update GOMAXPROCS if it has
changed. If GOMAXPROCS is set manually, this update does not occur. This
is intended primarily to detect changes to cgroup limits, but it applies
on all OSes because the CPU affinity mask can change as well.
The runtime only considers the limit in the leaf cgroup (the one that
actually contains the process), caching the CPU limit file
descriptor(s), which are periodically reread for updates. This is a
small departure from the original proposed design. It will not consider
limits of parent cgroups (which may be lower than the leaf), and it will
not detection cgroup migration after process start.
We can consider changing this in the future, but the simpler approach is
less invasive; less risk to packages that have some awareness of runtime
internals. e.g., if the runtime periodically opens new files during
execution, file descriptor leak detection is difficult to implement in a
stable way.
For #73193.
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Change-Id: I6a6a636c631c1ae577fb8254960377ba91c5dc98
Reviewed-on: https://go-review.googlesource.com/c/go/+/670497
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For #67002
Change-Id: Idd74b5b59e787e89bdfad82171b6a7719465f501
Reviewed-on: https://go-review.googlesource.com/c/go/+/674116
Reviewed-by: Alan Donovan <adonovan@google.com>
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For #67002
Change-Id: If59dab4fd934a115d8ff383826525330de750b54
Reviewed-on: https://go-review.googlesource.com/c/go/+/661595
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Add a synctest.Test function, superseding the experimental
synctest.Run function. Promote the testing/synctest package
out of experimental status.
For #67434
For #73567
Change-Id: I3c5ba030860d90fe2ddb517a2f3536efd60181a9
Reviewed-on: https://go-review.googlesource.com/c/go/+/671961
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This implementation is zero-alloc when T is a concrete type,
allocates when val contains a method or when T is a interface
and Value was obtained for example through Elem(), in which case
it has to be allocated to avoid sharing the same memory.
goos: linux
goarch: amd64
pkg: reflect
cpu: AMD Ryzen 5 4600G with Radeon Graphics
│ /tmp/bench2 │
│ sec/op │
TypeAssert/TypeAssert[int](int)-12 2.725n ± 1%
TypeAssert/TypeAssert[uint8](int)-12 2.599n ± 1%
TypeAssert/TypeAssert[fmt.Stringer](reflect_test.testTypeWithMethod)-12 8.470n ± 0%
TypeAssert/TypeAssert[fmt.Stringer](*reflect_test.testTypeWithMethod)-12 8.460n ± 1%
TypeAssert/TypeAssert[interface_{}](int)-12 4.181n ± 1%
TypeAssert/TypeAssert[interface_{}](reflect_test.testTypeWithMethod)-12 4.178n ± 1%
TypeAssert/TypeAssert[time.Time](time.Time)-12 2.839n ± 0%
TypeAssert/TypeAssert[func()_string](func()_string)-12 151.1n ± 1%
geomean 6.645n
│ /tmp/bench2 │
│ B/op │
TypeAssert/TypeAssert[int](int)-12 0.000 ± 0%
TypeAssert/TypeAssert[uint8](int)-12 0.000 ± 0%
TypeAssert/TypeAssert[fmt.Stringer](reflect_test.testTypeWithMethod)-12 0.000 ± 0%
TypeAssert/TypeAssert[fmt.Stringer](*reflect_test.testTypeWithMethod)-12 0.000 ± 0%
TypeAssert/TypeAssert[interface_{}](int)-12 0.000 ± 0%
TypeAssert/TypeAssert[interface_{}](reflect_test.testTypeWithMethod)-12 0.000 ± 0%
TypeAssert/TypeAssert[time.Time](time.Time)-12 0.000 ± 0%
TypeAssert/TypeAssert[func()_string](func()_string)-12 72.00 ± 0%
geomean ¹
Fixes#62121
Change-Id: I0911c70c5966672c930d387438643f94a40441c4
GitHub-Last-Rev: ce89a53097
GitHub-Pull-Request: golang/go#71639
Reviewed-on: https://go-review.googlesource.com/c/go/+/648056
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For #71661.
Change-Id: I74870de3f17a938bc9fd83ccc41e13e64b55b5e8
Reviewed-on: https://go-review.googlesource.com/c/go/+/671438
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For #71661.
Change-Id: I802b0c36cac3bbd87b35ff216f06822e87fb7b5d
Reviewed-on: https://go-review.googlesource.com/c/go/+/671439
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Output is a method on T, B and F. It provides an io.Writer that writes
to the same test output stream as TB.Log. The new output writer is
used to refactor the implementation of Log. It maintains the formatting
provided by Log while making call site information optional.
Additionally, it provides buffering of log messages. This fixes and
expands on
https://go-review.googlesource.com/c/go/+/646956.
For #59928.
Change-Id: I08179c35a681f601cf125c0f4aeb648bc10c7a9f
GitHub-Last-Rev: e6e202793c
GitHub-Pull-Request: golang/go#73703
Reviewed-on: https://go-review.googlesource.com/c/go/+/672395
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This reverts commit 8d189f188e.
Reason for revert: failing test
Change-Id: I951087eaef7818697acf87e3206003bcc8a81ee2
Reviewed-on: https://go-review.googlesource.com/c/go/+/672335
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Output is a method on T, B and F. It provides an io.Writer that writes
to the same test output stream as TB.Log. The new output writer is
used to refactor the implementation of Log. It maintains the formatting
provided by Log while making call site information optional.
Additionally, it provides buffering of log messages.
Co-authored-by: Aleks Fazlieva <britishrum@users.noreply.github.com>
Fixes#59928.
Change-Id: I29090b3d4f61f7334388b373ec18750d5637aafa
GitHub-Last-Rev: 18af0e1526
GitHub-Pull-Request: golang/go#71575
Reviewed-on: https://go-review.googlesource.com/c/go/+/646956
Reviewed-by: Arati <artichaut2023@gmail.com>
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And use it in crypto/x509. This allows people to implement single-shot
signers which do the hashing themselves.
Fixes#63405
Change-Id: I038c2e10f77b050b6136c4c0a5b031cb416f59aa
Reviewed-on: https://go-review.googlesource.com/c/go/+/654375
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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Go 1.22 promised to remove the setting in a future release once the
semantics of runtime-internal lock contention matched that of
sync.Mutex. That work is done, remove the setting.
Previously reviewed as https://go.dev/cl/585639.
For #66999
Change-Id: I9fe62558ba0ac12824874a0bb1b41efeb7c0853f
Reviewed-on: https://go-review.googlesource.com/c/go/+/668995
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For #73526
Change-Id: I06d8ae9080695745db68a51635faa0b244c1760e
Reviewed-on: https://go-review.googlesource.com/c/go/+/670155
Reviewed-by: Robert Griesemer <gri@google.com>
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Currently, the `source` method in `slog.Record` is not accessible to
custom handlers, requiring developers to re-implement logic for
retrieving source location information. This commit exports the `source`
method as `Source`, enabling consistent access for custom logging
handlers and reducing code redundancy.
Fixes#70280
Change-Id: I3eb3bc60658abc5de95697a10bddd11ab54c6e13
GitHub-Last-Rev: bd81afe5a5
GitHub-Pull-Request: golang/go#70281
Reviewed-on: https://go-review.googlesource.com/c/go/+/626976
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The runtime poller and os.NewFile recently gained support for
disassociating the handle from the runtime poller IOCP (see CL 664455).
This was the main blocker for allowing the conversion between *os.File
and net.Conn.
Implementing the conversion is now trivial. The only remaining work,
implemented in this CL, is improving os.NewFile to also support
socket handles and updating some build tags so that Windows can share
almost the same net's File implementation as Unix.
There is one important limitation, though: the duplicated socket handle
returned by the various File methods in the net package is not
usable on other process. If someone needs to pass a socket handle to
another process, they should manually call the WSADuplicateSocket
Windows API passing the process ID of the target process.
Fixes#9503.
Fixes#10350.
Updates #19098.
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Change-Id: Ic43cadaac2662b925d57a9d362ddc7ae21d1b56e
Reviewed-on: https://go-review.googlesource.com/c/go/+/668195
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Minor typo fixes in the docs
Change-Id: I56b5d0318936aecc7775fb5bc70534456707da49
GitHub-Last-Rev: b4d042f8a9
GitHub-Pull-Request: golang/go#73531
Reviewed-on: https://go-review.googlesource.com/c/go/+/668815
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The Unicode specification defines aliases for some of the general
category names. For example the category "L" has alias "Letter".
The regexp package supports \p{L} but not \p{Letter}, because there
was nothing in the Unicode tables that lets regexp know about Letter.
Now that package unicode provides CategoryAliases (see #70780),
we can use it to provide \p{Letter} as well.
This is the only feature missing from making package regexp suitable
for use in a JSON-API Schema implementation. (The official test suite
includes usage of aliases like \p{Letter} instead of \p{L}.)
For better conformity with Unicode TR18, also accept case-insensitive
matches for names and ignore underscores, hyphens, and spaces;
and add Any, ASCII, and Assigned.
Fixes#70781.
Change-Id: I50ff024d99255338fa8d92663881acb47f1e92a5
Reviewed-on: https://go-review.googlesource.com/c/go/+/641377
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CategoryAliases is for regexp to use, for things like \p{Letter} as an alias for \p{L}.
Cn and LC are special-case categories that were never implemented
but should have been.
These changes were generated by the updated generator in CL 641395.
Fixes#70780.
Change-Id: Ibba20ff76191c8ae9631ac5ba19965790fe0cc81
Reviewed-on: https://go-review.googlesource.com/c/go/+/641376
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It was rendering incorrectly at https://tip.golang.org/doc/go1.25
Change-Id: I2f66c95414ac5d71b9b02b91bcdc0d0a87b3f605
Reviewed-on: https://go-review.googlesource.com/c/go/+/662436
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For #69839.
For #71661.
Change-Id: Ic13f4b7fb81461d55216b260384ee10037b86054
Reviewed-on: https://go-review.googlesource.com/c/go/+/663515
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The runtime/poll package has just gained support for overlapped IO,
see CL 660595 and CL 661955. The only remaining piece was making it
visible to user code via os.NewFile.
Some of the poll.FD.Init responsibility has been moved to os.NewFile
to avoid unnecessary syscalls for the common case of using os.Open,
os.Create, os.OpenFile, and os.Pipe, where we know that the file
is not opened for overlapped IO.
Some internal/poll tests have been moved to the os package to exercise
public APIs rather than internal ones.
The os.NewFile function definition has been moved into an OS-agnostic
file to avoid having duplicated documentation and ensure that the
caller is aware of its behavior across all platforms.
Closes#19098.
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My CL 645115 added the new entries in the wrong place,
prematurely creating the go1.25 file.
Also, add the missing release note.
Change-Id: Ib5b5ccfb42757a9ea9dc93e33b3e3ed8e8bd7d3f
Reviewed-on: https://go-review.googlesource.com/c/go/+/662615
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Calling syscall.ReadFile and syscall.WriteFile on overlapped handles
always need to be passed a valid *syscall.Overlapped structure, even if
the handle is not added to a IOCP (like the Go runtime poller). Else,
the syscall will fail with ERROR_INVALID_PARAMETER.
We also need to handle ERROR_IO_PENDING errors when the overlapped
handle is not added to the poller, in which case we need to block until
the operation completes.
Previous CLs already added support for overlapped handles to the poller,
mostly to keep track of the file offset independently of the file
pointer (which is not supported for overlapped handles).
Fixed#15388.
Updates #19098.
Change-Id: I2103ab892a37d0e326752ae8c2771a43c13ba42e
Reviewed-on: https://go-review.googlesource.com/c/go/+/661795
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Also, rewrite some uses of LookupFieldOrMethod in terms of it.
+ doc, relnote
Fixes#70737
Change-Id: I58a6dd78ee78560d8b6ea2d821381960a72660ab
Reviewed-on: https://go-review.googlesource.com/c/go/+/647196
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For #67002
Change-Id: I223f3f2dbc8b02726f4ce5a017c628c4a20f109a
Reviewed-on: https://go-review.googlesource.com/c/go/+/659757
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For #67002
Change-Id: Ifb1042bc5ceaeea64296763319b24634bbcb0bf0
Reviewed-on: https://go-review.googlesource.com/c/go/+/659416
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For #71671
Change-Id: I690aa24c0d9dd62749244c92d26a5a353f0d5c47
Reviewed-on: https://go-review.googlesource.com/c/go/+/658275
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For #67002
Change-Id: I532a5ffc02c7457796540db54fa2f5ddad86e4b2
Reviewed-on: https://go-review.googlesource.com/c/go/+/658995
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For #67002
Change-Id: I1bbf18838a1dd2281a2b6e56fc8a58ef70007adc
Reviewed-on: https://go-review.googlesource.com/c/go/+/649536
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For #67002
Change-Id: I9b10ac30f852052c85d6d21eb1752a9de5474346
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This could bite people during the 1.25 release, so make sure it
has good documentation in the release notes.
Update #72860
Change-Id: Ie9aaa219025a631e81ebc48461555c5fb898f43f
Reviewed-on: https://go-review.googlesource.com/c/go/+/658955
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For #71294Fixes#50745
Change-Id: Iff05e98ac860a1764d4c59572f9abc3ae8d9c5fb
Reviewed-on: https://go-review.googlesource.com/c/go/+/658495
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In the passage about buffered channels, remove redundant words and match
the wording of the earlier passage about unbuffered channels.
Change-Id: I35d8a3bf4f176c3f69cf5e6a64595e5d1c23e3a1
GitHub-Last-Rev: 1c4c9390a1
GitHub-Pull-Request: golang/go#72891
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This CL adds `riscv.attributes` related ELF section header
type and program header type according to
[RISC-V ELF Specification](https://github.com/riscv-non-isa/riscv-elf-psabi-doc/releases/download/v1.0/riscv-abi.pdf)
Also an riscv64/linux testcase binary built from:
```
gcc -march=rv64g -no-pie -o gcc-riscv64-linux-exec hello.c
strip gcc-riscv64-linux-exec
```
Fixes#72843
Change-Id: I7710a0516f69141c0efaba71dd997f05b4c88421
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We are going to stick to BoringSSL's policy for Go+BoringCrypto, but
when using the native FIPS 140-3 module we can allow Ed25519, ML-KEM,
and P-521.
NIST SP 800-52r2 is stricter, but it only applies to some entities, so
they can restrict the profile with Config.
Fixes#71757
Change-Id: I6a6a4656eb02e56d079f0a22f98212275a40a679
Reviewed-on: https://go-review.googlesource.com/c/go/+/650576
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Daniel McCarney <daniel@binaryparadox.net>
Reviewed-by: David Chase <drchase@google.com>
This required adding a new field to SessionState for TLS 1.0–1.2, since
the key exchange is not repeated on resumption. The additional field is
unfortunately not backwards compatible because current Go versions check
that the encoding has no extra data at the end, but will cause
cross-version tickets to be ignored. Relaxed that so we can add fields
in a backwards compatible way the next time.
For the cipher suite, we check that the session's is still acceptable
per the Config. That would arguably make sense here, too: if a Config
for example requires PQ, we should reject resumptions of connections
that didn't use PQ. However, that only applies to pre-TLS 1.3
connections, since in TLS 1.3 we always do a fresh key exchange on
resumption. Since PQ is the only main differentiator between key
exchanges (aside from off-by-default non-PFS RSA, which are controlled
by the cipher suite in TLS 1.0–1.2) and it's PQ-only, we can skip that
check.
Fixes#67516
Change-Id: I6a6a465681a6292edf66c7b8df8f4aba4171a76b
Reviewed-on: https://go-review.googlesource.com/c/go/+/653315
Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Daniel McCarney <daniel@binaryparadox.net>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
The go command will now no longer update the toolchain line implicitly
to the local toolchain version when updating the go line. Document that
in a release note.
For #65847
Change-Id: I4e970d881a43c22292fe9fa65a9835d0214ef7bf
Reviewed-on: https://go-review.googlesource.com/c/go/+/657178
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Add a small fragment describing the move to DWARF 5 for this release,
along with the name of the GOEXPERIMENT.
Updates #26379.
Change-Id: I3a30a71436133e2e0a5edf1ba0db84b9cc17cc5c
Reviewed-on: https://go-review.googlesource.com/c/go/+/657176
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
This PR adds an helper FileContentDisposition that builds multipart
Content-Disposition header contents with field name and file name,
escaping quotes and escape characters.
The function is then called in the related helper CreateFormFile.
The new function allows users to add other custom MIMEHeaders,
without having to rewrite the char escaping logic of field name and
file name, which is provided by the new helper.
Fixes#46771
Change-Id: Ifc82a79583feb6dd609ca1e6024e612fb58c05ce
GitHub-Last-Rev: 969f846fa9
GitHub-Pull-Request: golang/go#63324
Reviewed-on: https://go-review.googlesource.com/c/go/+/531995
Reviewed-by: Damien Neil <dneil@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
We previously disallowed all non-regular files being embedded. This CL
relaxes the restriction a little: if the GODEBUG embedfollowsymlinks=1
is set, we allow the leaf files being embedded (not the directories
containing them) to be symlinks. The files pointed to by the symlinks
must still be regular files.
This will be used when a Bazel build action executing the Go command is
running in a symlink-based sandbox. It's not something we want to enable
in general for now, so it's behind a GODEBUG.
Fixes#59924
Change-Id: I895be14c12de55b7d1b663d81bdda1df37d54804
Reviewed-on: https://go-review.googlesource.com/c/go/+/643215
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
Damien Neil
Sean Liao
Michael Pratt
Mateusz Poliwczak
Michael Anthony Knyszek
Alan Donovan
suntala
Jonathan Amsterdam
Roland Shoemaker
Rhys Hiltner
Mark Freeman
Ernesto Alejandro Santana Hidalgo
qmuntal
John Bampton
Russ Cox
Brad Fitzpatrick
Carlos Amedee
qiulaidongfeng
Keith Randall
Michael Matloob
Julien Cretel
Meng Zhuo
Filippo Valsorda
Than McIntosh
Luca Maltagliati