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Commit Graph

61108 Commits

Author SHA1 Message Date
Rhys Hiltner
dc8902f4eb cmd/compile/internal/ssa: intrinsify atomic.Xchg8 on amd64
For #68578

Change-Id: Ia9580579bfc4709945bfcf6ec3803d5d11812187
Reviewed-on: https://go-review.googlesource.com/c/go/+/606901
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Martin Möhrmann <moehrmann@google.com>
Auto-Submit: Rhys Hiltner <rhys.hiltner@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-10-02 16:58:01 +00:00
Rhys Hiltner
841bb62f19 internal/runtime/atomic: add Xchg8 for amd64
For #68578

Change-Id: Idecfdbb793f46560dd69287af9170c07cf4ee973
Reviewed-on: https://go-review.googlesource.com/c/go/+/606900
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Auto-Submit: Rhys Hiltner <rhys.hiltner@gmail.com>
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Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2024-10-02 16:57:58 +00:00
qiulaidongfeng
03103a54d8 hash/maphash: add WriteComparable and Comparable
Default, use  hash function in the runtime package.
If the build tag is purego or raw memory cannot be hash directly,
use reflect get each field to hash separately.

Fixes #54670

Change-Id: Ic968864c9c3c51883967d4f6dc24432385c7dc79
GitHub-Last-Rev: 5ae8a28834
GitHub-Pull-Request: golang/go#69166
Reviewed-on: https://go-review.googlesource.com/c/go/+/609761
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
2024-10-02 15:54:11 +00:00
Jonathan Amsterdam
658a6a6e1f src/net/http: remove ServeMux.patterns
Remove an unexported field from ServeMux that was there only to support
some Google-internal packages. It is no longer needed.

Change-Id: I6a4d542c6c016f5a9f3d24d0c73f6ddd44c9562e
Reviewed-on: https://go-review.googlesource.com/c/go/+/616355
Reviewed-by: Chressie Himpel <chressie@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Damien Neil <dneil@google.com>
2024-10-02 15:22:08 +00:00
Tobias Klauser
1e338a2fe3 syscall: gofmt after CL 592078
Change-Id: I328760f7752f1f5ec100f151c7e13e3f804c0e10
Reviewed-on: https://go-review.googlesource.com/c/go/+/617355
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
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2024-10-02 14:23:34 +00:00
Tobias Klauser
bb5339196f all: use slices.Sorted(maps.Keys(m))
Use slices.Sorted(maps.Keys(m)) to get a sorted slices of the keys in
a map.

Do not change packages built during bootstrap, as the bootstrap compiler
(currently 1.22.6) does not have the required maps and slices functions.

Change-Id: Ie35565d241fa14aca56b730a69af010127b659ab
Reviewed-on: https://go-review.googlesource.com/c/go/+/617356
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
2024-10-02 14:22:59 +00:00
Jes Cok
e86982c515 encoding/json: add omitzero option
Fixes #45669

Change-Id: Ic13523c0b3acdfc5b3e29a717bc62fde302ed8fd
GitHub-Last-Rev: 57030f26b0
GitHub-Pull-Request: golang/go#69622
Reviewed-on: https://go-review.googlesource.com/c/go/+/615676
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2024-10-02 14:22:27 +00:00
Jes Cok
41d189a3f6 text/template: use correct verbs for reflect.Value
Fixes #69708.

Change-Id: I7a0347aff75cc8dad3f6c36966b1d03822a78dc9
GitHub-Last-Rev: fcc15513e4
GitHub-Pull-Request: golang/go#69713
Reviewed-on: https://go-review.googlesource.com/c/go/+/616695
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2024-10-02 14:21:45 +00:00
Robert Griesemer
630d4fb600 spec: document that alias declarations can have type parameters with 1.24
For #46477.

Change-Id: Id02d8f67fe82228bab3f26b1cb4ebd6ee67c4634
Reviewed-on: https://go-review.googlesource.com/c/go/+/616816
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
TryBot-Bypass: Robert Griesemer <gri@google.com>
2024-10-02 00:58:01 +00:00
Robert Griesemer
aa42d7b402 spec: clarify that identical structs must have identical field embeddings
The existing prose for struct identity did only require that two structs
"have the same sequence of fields, and if corresponding fields have the
same names, and identical types, and identical tags" for the structs to
be identical.

The implementation (forever) has also required that two corresponding
fields are either both embedded or not embedded. This is arguably part
of a struct's structure but is not explicitly specified.

This CL makes a minor change to the prose to address that.

Fixes #69472.

Change-Id: Ifa4ca69717986675642a09d03ce683ba8235efcb
Reviewed-on: https://go-review.googlesource.com/c/go/+/616697
Reviewed-by: Rob Pike <r@golang.org>
TryBot-Bypass: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
2024-10-02 00:57:58 +00:00
Austin Clements
8c52cd3da5 cmd/internal/obj: make asmidx error less cryptic
It's still pretty cryptic, but at least now instead of printing

    asm: asmidx: bad address 0/2067/2068

it will print

    asm: asmidx: bad address 0/BX/SP

Change-Id: I1c73c439c94c5b9d3039728db85102a818739db9
Reviewed-on: https://go-review.googlesource.com/c/go/+/611256
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Austin Clements <austin@google.com>
2024-10-01 23:32:21 +00:00
Ian Lance Taylor
441770461f cmd/cgo: add srcdir & trimpath docs, sort options
Update the package docs:
* The -srcdir docs were accidentally lost in CL 68590.
* The -trimpath option was added in CL 266358 but not documented.
* The options were not sorted correctly.

Fixes #69730

Change-Id: I97320e0f4fb6aa47cb03d451f028d3d9d9b560f7
Reviewed-on: https://go-review.googlesource.com/c/go/+/616699
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
2024-10-01 22:52:54 +00:00
favonia
8e478de4e6 net: document possible networks that can be passed to Control
Before this patch, the documentation of Dialer.Control and
ListenConfig.Control did not specify what networks would be
passed to the Control function other than the "tcp" case.
It was thus challenging to use the Control function to filter
out certain networks. This patch documents all known networks.

Fixes #69693

Change-Id: I2ab10d68c4e4fac66d51d2cc232f02cf3b305e89
Reviewed-on: https://go-review.googlesource.com/c/go/+/617055
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
2024-10-01 18:17:20 +00:00
Brian Palmer
b37b27b595 cmd/cgo: document errno value semantics
Added a section about errno values vs normal go
error value semantics, and checking the return
value of C functions for error before looking at
errno.

Fixes #63485

Change-Id: Id0132a9f11e4127f4adc14e010b7e17f57a0f7d3
Reviewed-on: https://go-review.googlesource.com/c/go/+/616264
Reviewed-by: Michael Knyszek <mknyszek@google.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>
2024-10-01 18:16:07 +00:00
Cuong Manh Le
e470a00cdf test: fix test issue 69434 for riscv64
CL 615915 simplified test for issue 69434, using gcflags maymorestack to
force stack moving, making program failed with invalid stack pointer.

However, it seems that this maymorestack is broken on riscv64. At least
gotip-linux-riscv64 is currently broken.

This CL fixes this problem by using the initial approach, growing stack
size big enough to force stack moving.

Updates #69434
Fixes #69714

Cq-Include-Trybots: luci.golang.try:gotip-linux-riscv64
Change-Id: I95255fba884a200f75bcda34d58e9717e4a952ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/616698
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Reviewed-by: David Chase <drchase@google.com>
2024-10-01 18:13:35 +00:00
Michael Pratt
89228ca439 runtime/pprof: add context to short stack panic
Over the years we've had various bugs in pprof stack handling resulting
in appendLocsForStack crashing because stk is too short for a cached
location. i.e., the cached location claims several inlined frames. Those
should always appear together in stk. If some frames are missing from
stk, appendLocsForStack.

If we find this case, replace the slice out of bounds panic with an
explicit panic that contains more context.

Change-Id: I52725a689baf42b8db627ce3e1bc6c654ef245d4
Reviewed-on: https://go-review.googlesource.com/c/go/+/617135
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-10-01 17:34:53 +00:00
Sam Thanawalla
8194d735cf cmd/go: add GOAUTH mechanism for HTTP authentication
This change adds a new environment variable GOAUTH which takes a semicolon-separated list of commands to run for authentication during go-import resolution and HTTPS module mirror protocol interactions.
This CL only supports netrc and off. Future CLs to follow will extend support to git and a custom authenticator command.

For #26232

Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Change-Id: I6cfa4c89fd27a7a4e7d25c8713d191dc82b7e28a
Reviewed-on: https://go-review.googlesource.com/c/go/+/605256
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2024-10-01 15:21:38 +00:00
Tobias Klauser
b2a856e82c all: use slices.Delete
Change-Id: Ifb6aa07b32127907cdc2df44b2dbddd6296775c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/616737
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
2024-10-01 14:55:00 +00:00
Robert Griesemer
bae2e968e2 go/parser, syntax: better error message for parameter missing type
Fixes #69506.

Change-Id: I18215e11f214b12d5f65be1d1740181e427f8817
Reviewed-on: https://go-review.googlesource.com/c/go/+/617015
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-09-30 22:04:40 +00:00
Davis Goodin
0206eb9679 README.vendor: add note about GOROOT, recommend fresh go
Using a different build of Go (specifically, a different GOROOT) to
maintain the vendor directory doesn't always reproduce the same results.
This can result in unknowingly creating a vendor directory that isn't
able to build Go.

Add a note to README.vendor to point this out. Specifically, mention
that a mismatched GOROOT is an issue, and recommend using a fresh build
of Go to maintain the vendor directory.

Updates #69235

Change-Id: Id80c7607bf28bd76e43e1fdc672811c50f2bffb3
Reviewed-on: https://go-review.googlesource.com/c/go/+/616815
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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Auto-Submit: Sam Thanawalla <samthanawalla@google.com>
Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2024-09-30 19:15:39 +00:00
Matt T. Proud
7f87b82955 context: link to context and structs blog post
This commit amends the package documentation for the context package
and links the https://go.dev/blog/context-and-structs where the package
documentation dissuades one against embedding a context into a struct.
This is to help close the gap in understanding why this otherwise
cryptic piece of guidance is provided. The other referenced blog
article now points to go.dev instead of golang.org.

Change-Id: I0844a57bde1c03b6dddd1dd2dab2d20557d791fb
GitHub-Last-Rev: 4b039fba90
GitHub-Pull-Request: golang/go#69696
Reviewed-on: https://go-review.googlesource.com/c/go/+/616515
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2024-09-30 18:47:31 +00:00
Ian Lance Taylor
aec9b916a2 net: use correct address family when testing for MPTCP support
Before this patch, on a system that only supports IPv6, we would
get EAFNOSUPPORT and decide that MPTCP might be available later.
The effect is that every socket tries to get MPTCP. If the system
does not support MPTCP, every socket call turns into two system calls.

Also avoid the uname if MPTCP is not supported.

For #56539

Change-Id: I628b44eda83b455f5493a9dd59076f1acea2f65b
Reviewed-on: https://go-review.googlesource.com/c/go/+/616335
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
2024-09-30 18:30:23 +00:00
Mateusz Poliwczak
ba10a38ed0 runtime, internal/syscall/unix: mark getrandom vDSO as non-escaping
Updates #66779
Updates #69577

Change-Id: I0dea5a30aab87aaa443e7e6646c1d07aa865ac1c
GitHub-Last-Rev: 1cea46deb3
GitHub-Pull-Request: golang/go#69719
Reviewed-on: https://go-review.googlesource.com/c/go/+/616696
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Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
2024-09-30 18:25:48 +00:00
Matt T. Proud
1d0f5c478a errors: reference Go 1.13 article about errors
This commit amends package errors' documentation to include a reference
to the https://go.dev/blog/go1.13-errors blog article. The motivation
is multi-fold, but chiefly the article includes good information about
error philosophy (e.g., when to wrap), and developers who have come to
Go in the intervening five years are likely not have seen this article
at all given the nature of blog publishing and post fanfare. The
material deserves a promotion in visibility.

Change-Id: Ia6f8307784521dd59de3a3d638dbc0a7fcd445e6
GitHub-Last-Rev: 20980dd507
GitHub-Pull-Request: golang/go#69698
Reviewed-on: https://go-review.googlesource.com/c/go/+/616341
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2024-09-30 17:37:38 +00:00
Jason A. Donenfeld
846fc6345d runtime: use canonical wireguard-go repo for procyield() linkname usage
The source code quoted tailscale's development fork, which is only a
development fork. The canonical github url is actually
github.com/wireguard/wireguard-go, but that's really just a mirror of
git.zx2c4.com/wireguard-go, and in any case, the proper go package name
is golang.zx2c4.com/wireguard, so just use that.

Change-Id: Ifa63c1c538989b3fcebcf06d1c238469bc73724d
Reviewed-on: https://go-review.googlesource.com/c/go/+/616736
Auto-Submit: Jason Donenfeld <Jason@zx2c4.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2024-09-30 17:34:12 +00:00
Mateusz Poliwczak
c7f70433d9 go/ast: update (*File).Imports field in SortImports
Fixes #69694

Change-Id: I7884d42482f4f9d17e7d050d7c7730f20948169d
GitHub-Last-Rev: ecd6efabaa
GitHub-Pull-Request: golang/go#69695
Reviewed-on: https://go-review.googlesource.com/c/go/+/616340
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Auto-Submit: Alan Donovan <adonovan@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
2024-09-30 17:02:41 +00:00
Damien Neil
f4b7291d73 crypto/internal/randutil: use math/rand/v2
Instead of using a select on a closed channel to generate one bit
of randomness, use math/rand/v2.

Change-Id: I36d294f17b9f5b437ca50e1c95da97bbe632c0a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/616475
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2024-09-30 15:49:07 +00:00
Davis Goodin
3637ebf1e0 crypto/internal/cryptotest: fix typos in AEAD test comments
Some comments that describe the behavior being tested don't match the
test logic.

Fix the comments to match test logic and documented behavior.

Change-Id: I065d9d9069fa00bb865209f48e112456384c2b9d
Reviewed-on: https://go-review.googlesource.com/c/go/+/616338
Auto-Submit: Quim Muntal <quimmuntal@gmail.com>
Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
Reviewed-by: David Chase <drchase@google.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
2024-09-30 15:41:33 +00:00
Jason A. Donenfeld
86781963cc runtime: align vgetrandom states to cache line
This prevents false sharing, which makes a large difference on machines
with several NUMA nodes, such as this dual socket server:

cpu: Intel(R) Xeon(R) Gold 6338 CPU @ 2.00GHz
                      │    sec/op    │    sec/op     vs base                │
ParallelGetRandom-128   0.7944n ± 5%   0.4503n ± 0%  -43.31% (p=0.000 n=10)

                      │     B/s      │     B/s       vs base                │
ParallelGetRandom-128   4.690Gi ± 5%   8.272Gi ± 0%  +76.38% (p=0.000 n=10)

Change-Id: Id4421e9a4c190b38aff0be4c59e9067b0a38ccd7
Reviewed-on: https://go-review.googlesource.com/c/go/+/616535
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Auto-Submit: Jason Donenfeld <Jason@zx2c4.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
2024-09-30 15:38:26 +00:00
qiulaidongfeng
327074551a cmd/go: exit non-zero if version -m is used with a non-Go file
Fixes #66426

Change-Id: I5c65d5ae7863f90d654063d6385ffb6ec1308d7c
GitHub-Last-Rev: 114b30eb55
GitHub-Pull-Request: golang/go#66443
Reviewed-on: https://go-review.googlesource.com/c/go/+/573295
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
2024-09-30 15:01:15 +00:00
Sam Thanawalla
7fd0b133dc cmd/go: add Mercurial based version stamping for binaries
This CL adds a local only VCS lookup for Mercurial.
It fixes a bug in pkg.go by passing in the repo directory to
the LookupLocal function instead of the module directory. It could be
the case that a binary is built in a subdirectory of the repo.

For: #50603
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Change-Id: Ic36b5a361a8ba3b0ba1a6968cde5f5263c9c8dd0
Reviewed-on: https://go-review.googlesource.com/c/go/+/609155
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Reviewed-by: Michael Matloob <matloob@golang.org>
2024-09-30 14:30:37 +00:00
Mateusz Poliwczak
49dd7726a9 internal/testlog: use atomic.Pointer instead of atomic.Value
We know the type (*Interface), so we can use the generic atomic.Pointer.
This change also makes sure that concurrent use of SetLogger also
causes a panic, currently it races (Load, then Store).

Change-Id: I6fae5ce0587b37eede2060342c3fcd0cde4386ff
GitHub-Last-Rev: 0c053be03e
GitHub-Pull-Request: golang/go#69701
Reviewed-on: https://go-review.googlesource.com/c/go/+/616516
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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2024-09-30 12:40:01 +00:00
Mateusz Poliwczak
6536c207c2 net: improve GODEBUG=netdns=1 debug messages
Fixes #69680

Change-Id: I73b0506c7a3245ba282cffabe47543f5fce86692
GitHub-Last-Rev: 4c6a1a4c70
GitHub-Pull-Request: golang/go#69684
Reviewed-on: https://go-review.googlesource.com/c/go/+/616263
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Auto-Submit: Ian Lance Taylor <iant@google.com>
2024-09-30 12:39:31 +00:00
Mateusz Poliwczak
0fb33863b7 net,os: use os.LookupEnv instead of syscall.Getenv
The os package already has a function for retrieving an environment
variable with a ok boolean, we don't need to use syscall directly.

Change-Id: Ife873e7245261ec765b628e31a0e7a7bc4dff934
GitHub-Last-Rev: bc5f30bf56
GitHub-Pull-Request: golang/go#69700
Reviewed-on: https://go-review.googlesource.com/c/go/+/616342
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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2024-09-30 12:38:46 +00:00
Mateusz Poliwczak
869932d700 net: improve documentation of netgo/netcgo build tags
Updates #69680

Change-Id: If80d43da493cb035164ede4a2cadcbec5831feaf
GitHub-Last-Rev: b3853e9487
GitHub-Pull-Request: golang/go#69682
Reviewed-on: https://go-review.googlesource.com/c/go/+/616262
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2024-09-30 12:38:42 +00:00
Jorropo
2bffb8b3fb slices: prevent Clone keeping alive the array when cloning empty slices
Fixes #68488

Change-Id: I39aba22cdfe8ca0bbe69db7c64f1bca75fa067fa
Reviewed-on: https://go-review.googlesource.com/c/go/+/598875
Reviewed-by: Keith Randall <khr@golang.org>
Commit-Queue: Ian Lance Taylor <iant@google.com>
Reviewed-by: Keith Randall <khr@google.com>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2024-09-29 05:04:42 +00:00
Jason A. Donenfeld
eb6f2c24cd runtime: use vDSO for getrandom() on linux
Linux 6.11 supports calling getrandom() from the vDSO. It operates on a
thread-local opaque state allocated with mmap using flags specified by
the vDSO.

Opaque states are allocated in chunks, ideally ncpu at a time as a hint,
rounding up to as many fit in a complete page. On first use, a state is
assigned to an m, which owns that state, until the m exits, at which
point it is given back to the pool.

Performance appears to be quite good:

           │    sec/op    │   sec/op       vs base                 │
Read/4-16    222.45n ± 3%   27.13n   ± 6%  -87.80% (p=0.000 n=10)
           │     B/s      │      B/s       vs base                 │
Read/4-16    17.15Mi ± 3%   140.61Mi ± 6%  +719.82% (p=0.000 n=10)

Fixes #69577.

Change-Id: Ib6f44e8f2f3940c94d970eaada0eb566ec297dc7
Reviewed-on: https://go-review.googlesource.com/c/go/+/614835
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Auto-Submit: Jason Donenfeld <Jason@zx2c4.com>
Reviewed-by: Paul Murphy <murp@ibm.com>
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Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
2024-09-28 01:07:09 +00:00
Cuong Manh Le
677b6cc175 test: simplify issue 69434 test
Updates #69434

Change-Id: I780c5ed63561eb8fa998bb0e6cdc77a904ff29c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/615915
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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2024-09-28 00:51:17 +00:00
Robert Griesemer
676d427f77 go/types, types2: remove Checker.pos from types2 code - not needed anymore
In go/types, move field down in environment struct, rename it to
exprPos, and document use.

Updates #69673.

Change-Id: I355af1237f8cd731ad9706e6a5fce34b314978cc
Reviewed-on: https://go-review.googlesource.com/c/go/+/616316
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
2024-09-27 19:24:18 +00:00
Robert Griesemer
6ad3933e28 go/types, types2: move go/types-only Scope methods into scopes2.go
Remove them them from types2.

Updates #69673.

Change-Id: I7843f6da1edf3a19f85c61706104d173e04088d3
Reviewed-on: https://go-review.googlesource.com/c/go/+/616261
Reviewed-by: Alan Donovan <adonovan@google.com>
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Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
2024-09-27 19:24:15 +00:00
Matt Harbison
62452bed48 cmd/go: fix the accuracy of Mercurial vcs.* stamped data
There were a few Mercurial command line uses that could cause the wrong
data to be used:

* The log command needs '-r.' to specify the currently checked out commit
* HGPLAIN is needed to disable optional output on commands
* '-S' is needed to for the 'status' command to recurse into any subrepos

The most likely issue to be seen here was the use of '-l1' instead of
'-r.', which prints the most recent commit instead of the current checkout.
Since tagging in Mercurial creates a new commit, this basically means the
data was wrong for every tagged build.

This also adds an hgrc config file to the test, with config options to
keep the time and author values fixed.  It's what's used in the Mercurial
test harness to keep the commit hashes stable, and allows the tests here to
also match the time and the revision ID, to prevent regressing.

Fixes #63532

Change-Id: I5b9971ce87c83431ec77e4a002bdc33fcf393856
GitHub-Last-Rev: 62c9db0a28
GitHub-Pull-Request: golang/go#63557
Reviewed-on: https://go-review.googlesource.com/c/go/+/535377
Reviewed-by: Bryan Mills <bcmills@google.com>
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Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
Auto-Submit: Sam Thanawalla <samthanawalla@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
2024-09-27 19:20:16 +00:00
Robert Griesemer
99bf122de8 go/types, types2: remove need for Scope.LookupParent from TestObjectString
Updates #69673.

Change-Id: I0ce5f009c1e95a2722a50d79a74fef83d2547b47
Reviewed-on: https://go-review.googlesource.com/c/go/+/616260
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
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2024-09-27 18:18:44 +00:00
Robert Griesemer
80316510d3 go/types, types2: remove non-test uses of Scope.LookupParent
This moves the implementation of Scope.LookupParent into
environment.lookupScope where it encapsulates the use of
the current environment's position. At least in types2,
that position can be removed, because it is never set.

With this, the type checker doesn't rely on position
information anymore for looking up objects during type
checking.

LookupParent is still called from tests and some go/types
code.

Updates #69673.

Change-Id: I7159ba95b71cf33cc3b16058aa19327e166224b1
Reviewed-on: https://go-review.googlesource.com/c/go/+/616337
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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Auto-Submit: Robert Griesemer <gri@google.com>
2024-09-27 18:17:09 +00:00
qiu laidongfeng2
1646f725bb Revert "cmd/go: relax the regular expression of TestScript/list_pkgconfig_error"
This reverts commit 906338f82f.

Reason for revert: break gotip-linux-loong64 builder.

Fixes #69651
Updates #68283

Change-Id: I909b52ed0fd999e21c00c1d9d80d7fe2fd4898a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/616336
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Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
2024-09-27 17:54:19 +00:00
Robert Griesemer
de46eaadb5 go/types, types2: replace 2 uses of Scope.LookupParent with Checker.lookup
A step towards removing reliance on Scope.LookupParent.

Updates #69673.

Change-Id: I9fdd4b08ea600b531b90895ac779fdc580ff00e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/616259
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
2024-09-27 17:31:05 +00:00
Robert Griesemer
5fe3b31cf8 go/types, types2: remove dependency on Scope.Contains in resolver
In extremely rare cases of receiver base types of the form
C.foo where C refers to an `import "C"`, we needed Scope.Contains
to lookup the file scope containing the "C" import.
Replace the position-dependent Scope.Contains with an explicit
scope search that doesn't require a position.

Also, make the surrounding code match more closely between
go/types and types2.

Change-Id: Ic007108928dd8b382a06e2bbf09ef8bd6bd0ff36
Reviewed-on: https://go-review.googlesource.com/c/go/+/616256
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
2024-09-27 16:45:09 +00:00
Xiaolin Zhao
0a8dea10ce cmd/internal/obj/loong64: mark functions with small stacks NOSPLIT
goos: linux
goarch: loong64
pkg: test/bench/go1
cpu: Loongson-3A6000 @ 2500.00MHz
                      │  bench.old  │             bench.new              │
                      │   sec/op    │   sec/op     vs base               │
BinaryTree17             7.728 ± 1%    7.703 ± 1%       ~ (p=0.345 n=15)
Fannkuch11               2.645 ± 0%    2.429 ± 0%  -8.17% (p=0.000 n=15)
FmtFprintfEmpty         35.89n ± 0%   35.83n ± 0%  -0.17% (p=0.000 n=15)
FmtFprintfString        59.48n ± 0%   59.45n ± 0%       ~ (p=0.280 n=15)
FmtFprintfInt           62.04n ± 0%   61.11n ± 0%  -1.50% (p=0.000 n=15)
FmtFprintfIntInt        97.74n ± 0%   96.56n ± 0%  -1.21% (p=0.000 n=15)
FmtFprintfPrefixedInt   116.7n ± 0%   116.6n ± 0%       ~ (p=0.975 n=15)
FmtFprintfFloat         204.5n ± 0%   203.2n ± 0%  -0.64% (p=0.000 n=15)
FmtManyArgs             456.2n ± 0%   454.6n ± 0%  -0.35% (p=0.000 n=15)
GobDecode               7.142m ± 1%   6.960m ± 1%  -2.55% (p=0.000 n=15)
GobEncode               8.172m ± 1%   8.081m ± 0%  -1.11% (p=0.001 n=15)
Gzip                    279.9m ± 0%   280.1m ± 0%  +0.05% (p=0.011 n=15)
Gunzip                  32.69m ± 0%   32.44m ± 0%  -0.79% (p=0.000 n=15)
HTTPClientServer        53.94µ ± 0%   53.68µ ± 0%  -0.48% (p=0.000 n=15)
JSONEncode              9.297m ± 0%   9.110m ± 0%  -2.01% (p=0.000 n=15)
JSONDecode              47.21m ± 0%   47.99m ± 2%  +1.66% (p=0.000 n=15)
Mandelbrot200           4.601m ± 0%   4.606m ± 0%  +0.11% (p=0.000 n=15)
GoParse                 4.666m ± 0%   4.664m ± 0%       ~ (p=0.512 n=15)
RegexpMatchEasy0_32     59.76n ± 0%   58.92n ± 0%  -1.41% (p=0.000 n=15)
RegexpMatchEasy0_1K     458.1n ± 0%   455.3n ± 0%  -0.61% (p=0.000 n=15)
RegexpMatchEasy1_32     59.36n ± 0%   60.25n ± 0%  +1.50% (p=0.000 n=15)
RegexpMatchEasy1_1K     557.7n ± 0%   566.0n ± 0%  +1.49% (p=0.000 n=15)
RegexpMatchMedium_32    803.0n ± 0%   783.7n ± 0%  -2.40% (p=0.000 n=15)
RegexpMatchMedium_1K    27.29µ ± 0%   26.54µ ± 0%  -2.76% (p=0.000 n=15)
RegexpMatchHard_32      1.388µ ± 2%   1.333µ ± 0%  -3.96% (p=0.000 n=15)
RegexpMatchHard_1K      40.91µ ± 0%   40.96µ ± 0%  +0.12% (p=0.001 n=15)
Revcomp                 474.7m ± 0%   474.2m ± 0%       ~ (p=0.325 n=15)
Template                77.13m ± 1%   75.70m ± 1%  -1.86% (p=0.000 n=15)
TimeParse               271.3n ± 0%   271.7n ± 0%  +0.15% (p=0.000 n=15)
TimeFormat              289.4n ± 0%   290.8n ± 0%  +0.48% (p=0.000 n=15)
geomean                 51.70µ        51.22µ       -0.92%

Change-Id: Ib71b60226251722ae828edb1d7d8b5a27f383570
Reviewed-on: https://go-review.googlesource.com/c/go/+/616098
Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-09-27 15:45:19 +00:00
Mark Ryan
6a730e1ef0 cmd/internal/obj/riscv: rename the iIEncoding
We rename it to iIIEncoding to reflect the fact that instructions
that use this encoding take two integer registers.  This change
will allow us to add a new encoding for I-type instructions that
take a single integer register.  This new encoding will be used for
instructions that modify CSRs.

Change-Id: Ic507d0020e18f6aa72353f4d3ffcd0e868261e7a
Reviewed-on: https://go-review.googlesource.com/c/go/+/614355
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Joel Sing <joel@sing.id.au>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
Reviewed-by: David Chase <drchase@google.com>
2024-09-27 00:32:20 +00:00
Shulhan
ff695ca2e3 runtime: fix TestGdbAutotmpTypes on gdb version 15
On Arch Linux with gdb version 15.1, the test for TestGdbAutotmpTypes print
the following output,

----
~/src/go/src/runtime
$ go test -run=TestGdbAutotmpTypes -v
=== RUN   TestGdbAutotmpTypes
=== PAUSE TestGdbAutotmpTypes
=== CONT  TestGdbAutotmpTypes
    runtime-gdb_test.go:78: gdb version 15.1
    runtime-gdb_test.go:570: gdb output:
        Loading Go Runtime support.
        Target 'exec' cannot support this command.
        Breakpoint 1 at 0x46e416: file /tmp/TestGdbAutotmpTypes750485513/001/main.go, line 8.

        This GDB supports auto-downloading debuginfo from the following URLs:
          <https://debuginfod.archlinux.org>
        Enable debuginfod for this session? (y or [n]) [answered N; input not from terminal]
        Debuginfod has been disabled.
        To make this setting permanent, add 'set debuginfod enabled off' to .gdbinit.
        [New LWP 355373]
        [New LWP 355374]
        [New LWP 355375]
        [New LWP 355376]

        Thread 1 "a.exe" hit Breakpoint 1, main.main () at /tmp/TestGdbAutotmpTypes750485513/001/main.go:8
        8       func main() {
        9               var iface interface{} = map[string]astruct{}
        All types matching regular expression "astruct":

        File runtime:
                []main.astruct
                bucket<string,main.astruct>
                hash<string,main.astruct>
                main.astruct
                typedef hash<string,main.astruct> * map[string]main.astruct;
                typedef noalg.[8]main.astruct noalg.[8]main.astruct;
                noalg.map.bucket[string]main.astruct
    runtime-gdb_test.go:587: could not find []main.astruct; in 'info typrs astruct' output
!!! FAIL
exit status 1
FAIL    runtime 0.273s
$
----

In the back trace for "File runtime", each output lines does not end with
";" anymore, while in test we check the string with it.

While at it, print the expected string with "%q" instead of "%s" for
better error message.

Fixes #67089

Change-Id: If6019ee68c0d8e495c920f98568741462c7d0fd0
Reviewed-on: https://go-review.googlesource.com/c/go/+/598135
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
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Reviewed-by: Michael Pratt <mpratt@google.com>
2024-09-27 00:25:54 +00:00
Ian Lance Taylor
2ebaff4890 runtime: if stop/reset races with running timer, return correct result
The timer code is careful to ensure that if stop/reset is called
while a timer is being run, we cancel the run. However, the code
failed to ensure that in that case stop/reset returned true,
meaning that the timer had been stopped. In the racing case
stop/reset could see that t.when had been set to zero,
and return false, even though the timer had not and never would fire.

Fix this by tracking whether a timer run is in progress,
and using that to reliably detect that the run was cancelled,
meaning that stop/reset should return true.

Fixes #69312

Change-Id: I78e870063eb96650638f12c056e32c931417c84a
Reviewed-on: https://go-review.googlesource.com/c/go/+/611496
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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2024-09-26 22:39:10 +00:00