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55014 Commits

Author SHA1 Message Date
Heschi Kreinick
7ab3615315 doc/go1.20: preannounce dropping macOS 10.13 and 10.14 support
For #23011.

Change-Id: I386920928a98403180098f1da5ea7696a239210e
Reviewed-on: https://go-review.googlesource.com/c/go/+/454957
Auto-Submit: Heschi Kreinick <heschi@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Heschi Kreinick <heschi@google.com>
2022-12-02 22:24:00 +00:00
Bryan C. Mills
45f5ef4ed7 cmd/go: remove TestScript/version_buildvcs_git_gpg
This was a regression test added for a 'git' command line
used for build stamping. Unfortunately, 'gpg' has proved to
be extremely fragile:

* In recent versions, it appears to always require 'gpg-agent' to be
  installed for anything involving secret keys, but for some reason is
  not normally marked as requiring gpg-agent in Debian's package
  manager.

* It tries to create a Unix domain socket in a subdirectory of $TMPDIR
  without checking the path length, which fails when $TMPDIR is too
  long to fit in the 'sun_path' field of a sockaddr_un struct (which
  typically tops out somewhere between 92 and 108 bytes).

We could theoretically address those by artificially reducing the
script's TMPDIR length and checking for gpg-agent in addition to gpg,
but arguably those should both be fixed upstream instead. On balance,
the incremental value that this test provides does not seem worth the
complexity of dealing with such a fragile third-party tool.

Updates #50675.
Updates #48802.
Fixes #57034.

Change-Id: Ia3288c2f84f8db86ddfa139b4d1c0112d67079ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/454502
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2022-12-02 21:15:10 +00:00
Bryan C. Mills
5efa4dab91 cmd/go: skip TestScript/mod_replace_gopkgin
(Until it can be made hermetic.)

The gopkg.in service has had a lot of flakiness lately. Go users in
general are isolated from that flakiness by the Go module mirror
(proxy.golang.org), but this test intentionally bypasses the module
mirror because the mirror itself uses cmd/go to download the module.

In the long term, we can redirect the gopkg.in URL to the local
(in-process) vcweb server added for #27494.

In the meantime, let's skip the test to reduce the impact of upstream
outages.

For #54503.

Change-Id: Icf3de7ca416db548e53864a71776fe22b444fcea
Reviewed-on: https://go-review.googlesource.com/c/go/+/454503
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2022-12-02 20:16:17 +00:00
Damien Neil
79559c1e7e path/filepath: make Join("c:", "/a") return "c:/a" again
Historically, on Windows filepath.Join("c:", elt) does not insert
a path separator between "c:" and elt, but preserves leading slashes
in elt. Restore this behavior, which was inadvertently changed by
CL 444280.

Fixes #56988

Change-Id: Id728bf311f4093264f8c067d8b801ea9ebef5b5f
Reviewed-on: https://go-review.googlesource.com/c/go/+/453497
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Run-TryBot: Damien Neil <dneil@google.com>
2022-12-02 19:48:47 +00:00
Bryan C. Mills
a79b55bb9a go/internal/gcimporter: in short tests, avoid creating export data for all of std
gcimporter.TestImportTypeparamTests still needs to create full export
data because it loads lots of source files from GOROOT/test that
expect to be able to import arbitrary subsets of the standard library,
so we now skip it in short mode.

On a clean build cache, this reduces
'go test -short cmd/compile/internal/importer go/internal/gcimporter'
on my machine from 21–28s per test to <6s per test.

Updates #56967.
Updates #47257.

Change-Id: I8fd80293ab135e0d2d213529b74e0ca6429cdfc7
Reviewed-on: https://go-review.googlesource.com/c/go/+/454498
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
2022-12-02 19:26:51 +00:00
Roland Shoemaker
3e2ab204a3 doc/go1.20: resolve root bundle package TODO
We're unlikely to get this package out of the door all that soon. For
now add a note that SetFallbackRoots will be most commonly used with
an TBA package, and link the tracking issue.

We could also just remove the "It will most commonly be used ..."
sentence.

Change-Id: Ie96134d757f5b4c69f1878d53c92b5ed602671e4
Reviewed-on: https://go-review.googlesource.com/c/go/+/454056
Reviewed-by: Julie Qiu <julieqiu@google.com>
Run-TryBot: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Roland Shoemaker <roland@golang.org>
2022-12-02 18:13:17 +00:00
Filippo Valsorda
eb12245645 math/big: fix BitLen performance regression
CL 450055 replaced BitLen with a slower constant-time implementation,
which caused a performance regression in some ecosystem benchmarks.

https://perf.golang.org/search?q=upload%3A20221130.13+pkg%3Agithub.com%2Fericlagergren%2Fdecimal%2Fbenchmarks

Current tip vs this CL

name                                   old time/op  new time/op  delta
Pi/foo=ericlagergren_(Go)/prec=100-4    151µs ± 0%   129µs ± 0%  -14.89%  (p=0.000 n=10+9)
Pi/foo=ericlagergren_(GDA)/prec=100-4   305µs ± 0%   269µs ± 1%  -11.88%  (p=0.000 n=9+10)
Pi/foo=cockroachdb/apd/prec=100-4      5.74ms ± 0%  5.33ms ± 0%   -7.02%  (p=0.000 n=9+10)
Pi/foo=shopspring/prec=100-4            265µs ±16%   268µs ±11%     ~     (p=0.796 n=10+10)
Pi/foo=apmckinlay/prec=100-4           3.10µs ± 0%  3.08µs ± 0%   -0.60%  (p=0.000 n=8+10)
Pi/foo=go-inf/prec=100-4                132µs ± 9%   137µs ± 9%     ~     (p=0.182 n=10+9)
Pi/foo=float64/prec=100-4              4.97µs ± 0%  4.98µs ± 0%     ~     (p=0.196 n=10+10)

CL 450055's parent vs this CL

name                                   old time/op  new time/op  delta
Pi/foo=ericlagergren_(Go)/prec=100-4    129µs ± 1%   129µs ± 0%    ~     (p=0.182 n=10+9)
Pi/foo=ericlagergren_(GDA)/prec=100-4   267µs ± 1%   269µs ± 1%  +0.93%  (p=0.001 n=9+10)
Pi/foo=shopspring/prec=100-4            252µs ± 9%   268µs ±11%    ~     (p=0.052 n=10+10)
Pi/foo=apmckinlay/prec=100-4           3.10µs ± 1%  3.08µs ± 0%  -0.66%  (p=0.000 n=9+10)
Pi/foo=go-inf/prec=100-4                135µs ± 6%   137µs ± 9%    ~     (p=0.605 n=9+9)
Pi/foo=float64/prec=100-4              4.97µs ± 0%  4.98µs ± 0%  +0.23%  (p=0.005 n=8+10)

goos: linux
goarch: amd64
pkg: github.com/ericlagergren/decimal_benchmarks
cpu: Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz

Fixes #57014

Change-Id: I08478bea122212320a592ad2652e33077807de09
Reviewed-on: https://go-review.googlesource.com/c/go/+/454617
Reviewed-by: Roland Shoemaker <roland@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-12-02 17:52:41 +00:00
Russ Cox
6ec6492f55 cmd/api: track darwin arm64 port
The darwin arm64 port was added in Go 1.16 and is a first-class port,
so it should be tracked by cmd/api. This CL does that, backfilling
API files as needed.

It also removes a spurious cgo.Incomplete API feature.

Change-Id: Idd995677915e81bf1c2e09be65b31e084b75f668
Reviewed-on: https://go-review.googlesource.com/c/go/+/453260
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
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2022-12-02 16:30:41 +00:00
Russ Cox
db4be8f510 encoding/csv: use proper doc comment for Deprecated notes
End-of-line comments are not doc comments,
so Deprecated notes in them are not recognized
as deprecation notices. Rewrite the comments.

Change-Id: I275fa9aec403132fda45853e52daa22bc06fcd36
Reviewed-on: https://go-review.googlesource.com/c/go/+/453617
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-12-02 16:30:23 +00:00
Russ Cox
5a4e440f48 archive/zip: use proper doc comment for Deprecated notes
End-of-line comments are not doc comments,
so Deprecated notes in them are not recognized
as deprecation notices. Rewrite the comments.

Change-Id: Idc4681924f9a7e9ead62f672ef8a763e70db1f0f
Reviewed-on: https://go-review.googlesource.com/c/go/+/453616
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
2022-12-02 16:30:21 +00:00
Russ Cox
d71b1c3dcc archive/tar: use proper doc comment for Deprecated notes
End-of-line comments are not doc comments,
so Deprecated notes in them are not recognized
as deprecation notices. Rewrite the comments.

Change-Id: Idb19603d7fc2ec8e3a2f74bacb74fbbec5583d20
Reviewed-on: https://go-review.googlesource.com/c/go/+/453615
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-12-02 16:30:19 +00:00
Russ Cox
1711f953e4 cmd/api: track deprecations
Deprecating an API creates notices that go out to potentially
millions of Go developers encouraging them to update their code.
The choice to deprecate an API is as important as the choice to
add a new API. We should track those and make them explicit.
This will also ensure that deprecations go through proposal review.

Change-Id: Ide9f60c32e5a88fb133e0dfedd984b8b0f70f510
Reviewed-on: https://go-review.googlesource.com/c/go/+/453259
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2022-12-02 16:29:41 +00:00
Russ Cox
dadd80ae20 runtime/debug: more complete BuildInfo documentation
A potential user did not realize Deps included all transitive dependencies,
not just direct dependencies of the main module. Clarify that and add
various other useful information.

Change-Id: I5b8e1314bb26092edbcc090ba8eb9859f0a70662
Reviewed-on: https://go-review.googlesource.com/c/go/+/453602
Run-TryBot: Russ Cox <rsc@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Julie Qiu <julieqiu@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
2022-12-02 14:23:18 +00:00
Bryan C. Mills
6a70292d1c go/internal/gcimporter: load cached export data for packages individually
Previously, we were using internal/goroot.PkgfileMap to locate
cached export data. However, PkgfileMap regenerates export data
for the entire standard library, whereas gcimporter may only need
a single package.

Under the new approach, we load the export data (still using
'go list -export') for each GOROOT package individually, avoiding work
to rebuild export data for packages that are not needed.
This is a tradeoff: if most packages in GOROOT are actually needed, we
end up making many more calls to 'go list', and may build packages
sequentially instead of in parallel (but with lower latency to start
using the export data from the earlier packages).

On my workstation, starting from a clean cache for each run,
this reduces the wall time of
'go test go/internal/gcimporter -run=TestImportedTypes'
from 22s real time (2m10s user time) to 6s real (27s user),
and only increases 'go test go/internal/gcimporter' from
28s real (2m16s user) to 30s real (2m19s user).

Updates #56967.
Updates #47257.

Change-Id: I22556acdd9b1acc56533ed4c2728ea29b585c073
Reviewed-on: https://go-review.googlesource.com/c/go/+/454497
Reviewed-by: Michael Matloob <matloob@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
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2022-12-01 22:04:03 +00:00
Michael Matloob
0e8b6056c9 cmd/dist: remove pkg/$GOOS_$GOARCH and pkg/obj at exit
pkg/obj will be empty, so just remove it.
pkg/$GOOS_$GOARCH will be empty unless the user has specified
GODEBUG=installgoroot=all, so check if it's empty, and if so, delete
it.

Also remove xreaddirfiles, which is unused.

Also remove the copy of pkg/$GOOS_$GOARCH in the cmd/go test
TestNewReleaseRebuildsStalePackagesInGOPATH. The directory is empty so
copying it has no effect.

For #47257

Change-Id: Ief90b882d157bd16078cd5d2b83a915bfc831f9a
Reviewed-on: https://go-review.googlesource.com/c/go/+/453496
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
2022-12-01 21:30:53 +00:00
Tobias Klauser
c71d3a0f50 doc/go1.20: add code tags in crypto/{rsa,subtle} and net/netip sections
Change-Id: I516195fb1c2434feb3bf130d37012a98d77beeb6
Reviewed-on: https://go-review.googlesource.com/c/go/+/454235
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Russ Cox <rsc@golang.org>
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2022-12-01 21:01:03 +00:00
Mateusz Poliwczak
cd133abc5b net: acquire thread in resSearch
Change-Id: I042906d8eee8defafbd98f671fd30c2a68281705
GitHub-Last-Rev: 0660c9a989
GitHub-Pull-Request: golang/go#57021
Reviewed-on: https://go-review.googlesource.com/c/go/+/454396
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2022-12-01 21:00:47 +00:00
Mateusz Poliwczak
93587d3591 net: retry with bigger buffer in resSearch
Glibc returns size > bufSize, when the entire dns reply does not fit inside the provided buffer.

Change-Id: Ie1c1c6a3411880bd8bdb4371f1f1b7bcce837ea2
GitHub-Last-Rev: 488cd3ed0d
GitHub-Pull-Request: golang/go#57020
Reviewed-on: https://go-review.googlesource.com/c/go/+/454395
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2022-12-01 21:00:45 +00:00
Chaoshuai Lü
7e92b80c21 crypto/des: fix a typo in the comment for permuteFinalBlock
The comment copy pasted from the permuteInitialBlock and should be fixed.

Change-Id: I101f1deceadf9b0480e5b679e4e237bda601950b
GitHub-Last-Rev: 7662df772e
GitHub-Pull-Request: golang/go#56982
Reviewed-on: https://go-review.googlesource.com/c/go/+/453995
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Reviewed-by: Russ Cox <rsc@golang.org>
2022-12-01 21:00:43 +00:00
Cuong Manh Le
86963b458e doc: add release note for cgo.Incomplete
Updates #46731

Change-Id: Ie64e87d759c48642582342d221b24f77bb81d47a
Reviewed-on: https://go-review.googlesource.com/c/go/+/453556
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Reviewed-by: Russ Cox <rsc@golang.org>
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2022-12-01 21:00:41 +00:00
Robert Griesemer
cc1771e2fd doc/go1.20: document new semantics for comparable constraint
For #54202.
For #56548.

Change-Id: If2b9e41813c3e1c8d373469a40e1bd0bd5ea2b16
Reviewed-on: https://go-review.googlesource.com/c/go/+/454595
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Bypass: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
2022-12-01 20:58:25 +00:00
Michael Matloob
8ed74ee39a go/internal/gcimporter: fix TestImportStdLib
The test attempted to find all stdlib packages by scanning
pkg/$GOOS_$GOARCH for .a files and then tried to import all of them.
Now that .a files are no longer being placed there, the test is a
noop. Fix this by using go list std (and filtering out testonly
packages) and trying to import all of those to recreate what the test
intended to do.

This also removes a dependency on the pkg/$GOOS_$GOARCH directory
which will stop being produced by dist in CL 453496.

For #47257

Change-Id: I7c1944a89db9da9269def3d64a11408a60d73d46
Reviewed-on: https://go-review.googlesource.com/c/go/+/453858
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Michael Matloob <matloob@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
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2022-12-01 20:48:36 +00:00
Robert Griesemer
8fd2875c3e go/types, types2: make the new comparable semantics the default
Ordinary interface types now satisfy comparable constraints. This
is a fully backward-compatible change: it simply permits additional
code to be valid that wasn't valid before.

This change makes the new comparable semantics the default behavior,
depending on the Go -lang version.

It also renames the flag types2.Config.AltComparableSemantics to
types2.Config.OldComparableSemantics and inverts its meaning
(or types.Config.oldComparableSemantics respectively).

Add new predicate Satisfies (matching the predicate Implements but
for constraint satisfaction), per the proposal description.

Adjust some existing tests by setting -oldComparableSemantics
and add some new tests that verify version-dependent behavior.

The compiler flag -oldcomparable may be used to temporarily
switch back to the Go 1.18/1.19 behavior should this change
cause problems, or to identify that a problem is unrelated
to this change. The flag will be removed for Go 1.21.

For #52509.
For #56548.
For #57011.

Change-Id: I8b3b3d9d492fc24b0693567055f0053ccb5aeb42
Reviewed-on: https://go-review.googlesource.com/c/go/+/454575
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Reviewed-by: Robert Findley <rfindley@google.com>
2022-12-01 19:48:07 +00:00
Bryan C. Mills
af1a5d9287 cmd/go/internal/work: make formatOutput return an error that includes the import path
This refines the error output that was previously adjusted in CL 437298.

Longer term, we should consider unraveling the call chains involving
formatOutput to avoid passing so many parameters through so many
different formatting functions.

Updates #25842.

Change-Id: I3b9d03bf5968902d8ccc4841ab4dbe114a2239e4
Reviewed-on: https://go-review.googlesource.com/c/go/+/451218
Reviewed-by: Bryan Mills <bcmills@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
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Reviewed-by: Than McIntosh <thanm@google.com>
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2022-12-01 19:27:18 +00:00
Than McIntosh
e24380b6fa runtime,hash/maphash: eliminate maphash torture test for -race
Disable the "torture" portion of the maphash tests if -race is in
effect (these tests can cause timeouts on the longtest -race builder).

Fixes #57030.

Change-Id: I23d7561dac3e81d979cad9e0efa6f5b7154aadd2
Reviewed-on: https://go-review.googlesource.com/c/go/+/454455
Run-TryBot: Than McIntosh <thanm@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
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Reviewed-by: Keith Randall <khr@google.com>
2022-12-01 19:24:55 +00:00
Roland Shoemaker
36b87f273c crypto/x509: include more hints for verification failure
Include hint from isValid, as well as CheckSignatureFrom.

Change-Id: I408f73fc5f12572f1937da50be7fa3e1109164b0
Reviewed-on: https://go-review.googlesource.com/c/go/+/454477
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Auto-Submit: Roland Shoemaker <roland@golang.org>
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Reviewed-by: Damien Neil <dneil@google.com>
2022-12-01 18:11:42 +00:00
Robert Griesemer
2ca32a5b99 Revert "go/types, types2: make the new comparable semantics the default"
The CL below was accidentally submitted, while waiting for the freeze
exception. Reverting.

This reverts commit 15e705ea96.

Change-Id: I4dbf92dcb01fa9245a6e6a2d1514d8aa898d0048
Reviewed-on: https://go-review.googlesource.com/c/go/+/454476
Reviewed-by: Robert Griesemer <gri@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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2022-12-01 18:03:33 +00:00
Tobias Klauser
f5026496cf internal/coverage: use io.Seek* constants
Use the io.Seek* constants instead of their deprecated os.SEEK_*
counterparts.

Change-Id: Ie899f9cf286de7304a394d9a2a091a55937542ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/453576
Reviewed-by: Than McIntosh <thanm@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
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2022-12-01 18:01:23 +00:00
Roland Shoemaker
791f758075 archive/zip: tolerate compressed directories with zero uncompressed size
In CL 449955 we made reading of directories with associated file data
an error, since it is a "must not" in the zip specification. It turns
out that a number of implementations make the mistake of not setting
the correct compression method on directories (in particular the Java
jar tool does this when storing the META-INF directory). If the
compression method used is not 0 (stored) then the compressed size of
the directory can be > 0, despite the uncompressed size still being 0.

Since this mistake is not uncommon, we are forced to tolerate it. We
still fail if the recorded uncompressed size is > 0, which should be
a significantly harder mistake to make.

Change-Id: Ia732b10787f26ab937ac9cf9869ac3042efb8118
Reviewed-on: https://go-review.googlesource.com/c/go/+/454475
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Roland Shoemaker <roland@golang.org>
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2022-12-01 17:46:25 +00:00
Roland Shoemaker
34ab0bcc5e crypto/ecdsa: verify validity of signature parameters in Verify
CL 353849 removed validation of signature parameters being passed to
Verify which led to two distinct problems. If passed a R or S == 0,
encodeSignature would panic since it expects them to be non-zero.
encodeSignature would also normalize (i.e. make non-negative) parameters
by zero padding them, which would result in a signature being passed to
VerifyASN1 which did not match the input signature, resulting in success
in cases where it should've failed. This change re-adds the verification
that 0 < r,s < N before calling ecnodeSignature.

This was caught because tink runs the wycheproof ECDSA vectors against
Verify, where we only run the vectors against VerifyASN1. We should be
doing both.

Change-Id: I1dcf41626b4df2b43296e8b878dc607ff316a892
Reviewed-on: https://go-review.googlesource.com/c/go/+/453675
Auto-Submit: Roland Shoemaker <roland@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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2022-12-01 17:28:18 +00:00
Robert Griesemer
15e705ea96 go/types, types2: make the new comparable semantics the default
Ordinary interface types now satisfy comparable constraints.

This change makes the new comparable semantics the default behavior,
depending on the Go -lang version.

It also renames the flag types2.Config.AltComparableSemantics to
types2.Config.OldComparableSemantics and inverts its meaning
(or types.Config.oldComparableSemantics respectively).

Adjust some existing tests by setting -oldComparableSemantics
and add some new tests that verify version-dependent behavior.

The compiler flag -oldcomparable may be used to temporarily
switch back to the Go 1.18/1.19 behavior should this change
cause problems, or to identify that a problem is unrelated
to this change. The flag will be removed for Go 1.21.

For #52509.
For #56548.

Change-Id: Ic2b22db9433a8dd81dc1ed9d30835f0395fb7205
Reviewed-on: https://go-review.googlesource.com/c/go/+/453978
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
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2022-12-01 16:39:00 +00:00
Cuong Manh Le
c85848a4a6 cmd/compile: fix inline static init with derived types
CL 450136 added handling for simple calls in staticinit. If there's any
derived types conversion in the body of generic function called, that
conversion will require runtime dictionary, thus the optimization could
not happen.

Fixes #56923

Change-Id: I498cee9f8ab4397812ef79a6c2ab6c55e0ee4aef
Reviewed-on: https://go-review.googlesource.com/c/go/+/453315
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Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Gabriel Morency (Amgc63spaming) <morencyvincent8@gmail.com>
2022-11-30 23:25:43 +00:00
Matthew Dempsky
8c0256b398 cmd/cgo: walk {FuncType,TypeSpec}.TypeParams fields
This CL updates the cgo tool to walk the TypeParams fields for
function types and type declarations, so that C.xxx identifiers can
appear within type parameter lists.

Fixes #52542.

Change-Id: Id02a88d529d50fe59b0a834f415c2575204ffd1f
Reviewed-on: https://go-review.googlesource.com/c/go/+/453977
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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2022-11-30 21:45:10 +00:00
Damien Neil
3b3ab61692 net: reenable SRV tests with _ldap._tcp.google.com
TestLookupDotsWithRemoteSource and TestLookupGoogleSRV
were disabled because they look up the no-longer-present
SRV record for _xmpp-server._tcp.google.com.

Change the tests to look for _ldap._tcp.google.com and
reenable them.

Fixes #56708.

Change-Id: I26475fa3ff6fc008048a4e5f24f0e96ee12f655c
Reviewed-on: https://go-review.googlesource.com/c/go/+/453861
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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2022-11-30 19:41:11 +00:00
Michael Anthony Knyszek
85ce1fd97f doc/go1.20: add runtime, runtime/trace, and runtime/pprof release notes
This change adds release notes for the "Runtime" section and updated
some of the release notes for runtime/trace and runtime/pprof after I
looked at the full list of runtime-related changes.

For #54202.

Change-Id: Id1395f4e6e02d3fcc248855ca98ad0ee26cae574
Reviewed-on: https://go-review.googlesource.com/c/go/+/454075
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Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Austin Clements <austin@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
2022-11-30 19:32:42 +00:00
Damien Neil
648f3febf5 net/http: deflake and fix TestWrappedResponseController
Read the full (empty) response body before closing it,
to avoid cancelling the request while the server handler
is still running.

Wrap the ResponseWriter before calling NewResponseController:
This test is intended to verify that wrapping the controller
works properly, but neglected to actually wrap the controller.

Fixes #56961.

Change-Id: I00269f897448ab34676338707b7a04d19ff17963
Reviewed-on: https://go-review.googlesource.com/c/go/+/453860
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
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2022-11-30 19:01:44 +00:00
Keith Randall
c8057d8569 cmd/compile: disallow CMOV optimization with ptr arithmetic as an arg
if q != nil {
        p = &q.f
    }

Which gets rewritten to a conditional move:

    tmp := &q.f
    p = Select q!=nil, tmp, p

Unfortunately, we can't compute &q.f before we've checked if q is nil,
because if it is nil, &q.f is an invalid pointer (if f's offset is
nonzero but small).

Normally this is not a problem because the tmp variable above
immediately dies, and is thus not live across any safepoint. However,
if later there is another &q.f computation, those two computations are
CSEd, causing tmp to be used at both use points. That will extend
tmp's lifetime, possibly across a call.

Fixes #56990

Change-Id: I3ea31be93feae04fbe3304cb11323194c5df3879
Reviewed-on: https://go-review.googlesource.com/c/go/+/454155
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Reviewed-by: Keith Randall <khr@google.com>
2022-11-30 17:46:51 +00:00
Tim King
60525dc31d spec: document conversion from slice to array
Document that a slice can be converted to either an array or a pointer
to an array of a matching underlying array type. This was documented in
the "Conversions from slice to array or array pointer" subsection, but
not in the list of conversion rules.

Updates #46505.

Change-Id: I16a89a63ef23c33580129952415e977a8f334009
Reviewed-on: https://go-review.googlesource.com/c/go/+/452936
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Reviewed-by: Robert Griesemer <gri@google.com>
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2022-11-30 17:03:21 +00:00
Ian Lance Taylor
78472603c6 reflect: correct tpoy in comment
Change-Id: I75aef6bf957939fae8b680214f5923dc2713a5cc
Reviewed-on: https://go-review.googlesource.com/c/go/+/452935
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
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2022-11-29 22:59:16 +00:00
Ian Lance Taylor
483f3dc39f Revert "encoding/xml: disallow empty namespace when prefix is set"
This reverts CL 105636.

Reason for revert: Fails with existing XML data.  At this stage in the release cycle we should revert, and try again next time with some way to support existing XML.

For #8068

Change-Id: Ia84cbf3a84878ac7190f72998545dee22c36c45e
Reviewed-on: https://go-review.googlesource.com/c/go/+/453996
Auto-Submit: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
2022-11-29 22:25:08 +00:00
Cherry Mui
53c480077a doc/go1.20: revise linker release note
I misunderstood CL 420774. We didn't remove GO_LDSO, just that
make.bash no longer tries to set it automatically. If GO_LDSO is
explicitly set at make.bash, it is still used as the default
dynamic interpreter.

For #54202.

Change-Id: Ided775438b8e4b87a6acd9bc87657657dbd3d91c
Reviewed-on: https://go-review.googlesource.com/c/go/+/453601
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2022-11-29 18:26:16 +00:00
Cherry Mui
8c0f9ed4ce doc/go1.20: quote code in Bootstrap and Cgo sections
Add code tag for environment variables and file paths in the
Bootstrap section.

Add code tag for packages in the Cgo section.

Change-Id: Ib0fad1c09fbc497a097ef43cbf5850a27b9a6532
Reviewed-on: https://go-review.googlesource.com/c/go/+/453621
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2022-11-29 15:41:40 +00:00
Than McIntosh
0fd7be7ee5 testing: remove stale builder names from windows tests
A couple of the windows runtime tests were being gated by "if
testenv.Builder() == ..." guards that referred to builders that have
long since been obsoleted (e.g. "windows-amd64-gce"). Use a more
generic guard instead, checking for windows-<goarch> prefix.

Change-Id: Ibdb9ce2b0cfe10bba986bd210a5b8ce5c1b1d675
Reviewed-on: https://go-review.googlesource.com/c/go/+/453035
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Than McIntosh <thanm@google.com>
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2022-11-29 01:18:35 +00:00
Cherry Mui
a4772376af doc/go1.20: add release notes for the linker
For #54202.

Change-Id: I06d7a44fb24427d783a9f57368dccce219b217bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/453620
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Reviewed-by: Austin Clements <austin@google.com>
2022-11-28 23:32:35 +00:00
Cherry Mui
318e75bb7c doc/go1.20: add release notes for PGO
For #54202.
For #55022.

Change-Id: Ia3183e48536fa707c091094880d52fb75e7f6666
Reviewed-on: https://go-review.googlesource.com/c/go/+/453636
Reviewed-by: Austin Clements <austin@google.com>
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2022-11-28 23:32:00 +00:00
Bryan C. Mills
bb0d8297d7 cmd/go: run the gpg command verbosely in TestScript/version_buildvcs_git_gpg
Also update test helper programs to avoid the deprecated io/ioutil
package and fix minor formatting issues.

For #49649.

Change-Id: Id404acbb2795470420854d682f849d959d2080c0
Reviewed-on: https://go-review.googlesource.com/c/go/+/453775
Auto-Submit: Bryan Mills <bcmills@google.com>
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Reviewed-by: Carlos Amedee <carlos@golang.org>
2022-11-28 19:38:37 +00:00
Ian Lance Taylor
61f5a672ed context: add lock in Cause to avoid race
Change-Id: I8d970e8db859bdd17390cfbc22cc2ba0d326ed0c
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Reviewed-by: Ian Lance Taylor <iant@google.com>
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2022-11-28 19:33:02 +00:00
Tobias Klauser
fd22b0bf89 net: gofmt after CL 382996
Change-Id: Ic1302eb02f4369bf6758be9fb91379fd9a992e48
Reviewed-on: https://go-review.googlesource.com/c/go/+/453575
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2022-11-28 18:43:35 +00:00
Tobias Klauser
0f28c478b2 doc/go1.20: fix missing <code> tag
Change-Id: I9c6f9ec28dbe038ddc195310a32d97d5b2a28ef5
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2022-11-28 17:25:47 +00:00
Russ Cox
9f0ffc9380 doc/go1.20: fix missing </code> tag
Change-Id: I8767696a62d8a814c7ed94abfd4b99ca0cab31f9
Reviewed-on: https://go-review.googlesource.com/c/go/+/453635
Auto-Submit: Russ Cox <rsc@golang.org>
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2022-11-28 16:53:09 +00:00