Commit Graph

62263 Commits

Author SHA1 Message Date
Jorropo d3d4e7b0d1 testing: fix divide by zero when benchmark is faster than OS's clock resolution
I did not added a test because `benchmark_test.go` is `package testing_test`
and I don't care to change that because calling predictN is not testing the
thing I would want to test.

Ideally we would run benchmark in a VM with a highjacked clocksource that never
marches forward, or using faketime but that looks fairly involved for a quickie
fix.

Fixes #70709

Change-Id: I8b4d697aff7cba33da388cb0ae8e2c2b550b9690
Reviewed-on: https://go-review.googlesource.com/c/go/+/633419
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Jorropo <jorropo.pgm@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
2024-12-06 06:25:44 +00:00
Cherry Mui 3ae00f5d29 cmd/compile: update default PGO profile
Since last time the default.pgo profile is collected, there has
been a lot of development in the compiler. It's time to refresh
the compiler's PGO profile.

Profile collected by running the cmd/compile/profile.sh script on
the gotip-linux-arm64_c4ah72-perf_vs_release gomote.

Benchmark results on Linux/AMD64:

         │   nopgo.txt   │              old.txt               │              new.txt               │
         │    sec/op     │   sec/op     vs base               │   sec/op     vs base               │
Template     112.0m ± 1%   109.7m ± 1%  -2.10% (p=0.000 n=20)   110.3m ± 1%  -1.55% (p=0.001 n=20)
Unicode      99.39m ± 0%   94.94m ± 0%  -4.49% (p=0.000 n=20)   94.33m ± 1%  -5.10% (p=0.000 n=20)
GoTypes      544.9m ± 0%   535.0m ± 1%  -1.80% (p=0.000 n=20)   535.1m ± 0%  -1.78% (p=0.000 n=20)
Compiler     96.23m ± 1%   90.86m ± 1%  -5.58% (p=0.000 n=20)   90.84m ± 1%  -5.60% (p=0.000 n=20)
SSA           3.403 ± 1%    3.273 ± 0%  -3.81% (p=0.000 n=20)    3.247 ± 0%  -4.57% (p=0.000 n=20)
Flate        71.55m ± 0%   70.09m ± 1%  -2.04% (p=0.000 n=20)   70.03m ± 1%  -2.13% (p=0.000 n=20)
GoParser     131.5m ± 1%   129.9m ± 1%  -1.19% (p=0.000 n=20)   129.4m ± 0%  -1.56% (p=0.000 n=20)
Reflect      275.5m ± 1%   268.6m ± 1%  -2.50% (p=0.000 n=20)   268.1m ± 1%  -2.70% (p=0.000 n=20)
Tar          131.6m ± 1%   128.4m ± 1%  -2.37% (p=0.000 n=20)   128.8m ± 1%  -2.07% (p=0.000 n=20)
XML          153.7m ± 1%   150.3m ± 1%  -2.26% (p=0.000 n=20)   149.7m ± 1%  -2.66% (p=0.000 n=20)
geomean      200.3m        194.7m       -2.82%                  194.4m       -2.98%

On Linux/ARM64:

         │   nopgo.txt   │              old.txt               │              new.txt               │
         │    sec/op     │   sec/op     vs base               │   sec/op     vs base               │
Template     82.38m ± 1%   80.52m ± 0%  -2.26% (p=0.000 n=20)   80.07m ± 1%  -2.81% (p=0.000 n=20)
Unicode      76.28m ± 0%   72.72m ± 0%  -4.66% (p=0.000 n=20)   72.40m ± 1%  -5.09% (p=0.000 n=20)
GoTypes      420.7m ± 0%   412.5m ± 0%  -1.95% (p=0.000 n=20)   408.1m ± 1%  -3.00% (p=0.000 n=20)
Compiler     69.85m ± 1%   67.40m ± 1%  -3.50% (p=0.000 n=20)   66.73m ± 1%  -4.47% (p=0.000 n=20)
SSA           2.846 ± 0%    2.733 ± 0%  -3.96% (p=0.000 n=20)    2.707 ± 0%  -4.90% (p=0.000 n=20)
Flate        49.14m ± 1%   47.87m ± 0%  -2.58% (p=0.000 n=20)   47.53m ± 1%  -3.26% (p=0.000 n=20)
GoParser     97.44m ± 1%   94.96m ± 1%  -2.55% (p=0.000 n=20)   94.75m ± 1%  -2.76% (p=0.000 n=20)
Reflect      210.5m ± 0%   205.2m ± 0%  -2.50% (p=0.000 n=20)   202.5m ± 0%  -3.78% (p=0.000 n=20)
Tar          97.75m ± 1%   95.72m ± 1%  -2.07% (p=0.000 n=20)   94.68m ± 1%  -3.13% (p=0.000 n=20)
XML          112.6m ± 0%   110.0m ± 0%  -2.33% (p=0.000 n=20)   108.7m ± 1%  -3.49% (p=0.000 n=20)
geomean      150.2m        145.9m       -2.84%                  144.6m       -3.67%

For #60234.

Change-Id: Ie1abc019339252cd9441a1fb1eab33a29c1dc11c
Reviewed-on: https://go-review.googlesource.com/c/go/+/634037
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Reviewed-by: Michael Pratt <mpratt@google.com>
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2024-12-06 02:16:12 +00:00
Damien Neil 4da905bcf0 cmd/internal/objabi, internal/runtime: increase nosplit limit on OpenBSD
OpenBSD is bumping up against the nosplit limit, and openbsd/ppc64
is over it. Increase StackGuardMultiplier on OpenBSD, matching AIX.

Change-Id: I61e17c99ce77e1fd3f368159dc4615aeae99e913
Reviewed-on: https://go-review.googlesource.com/c/go/+/632996
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Damien Neil <dneil@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-12-06 00:35:41 +00:00
Ian Lance Taylor ea86737810 crypto/hkdf: add package doc comment
For #61477

Change-Id: I3d3ebf573a21f1f56edfffb3fea53c0b5cbfccd8
Reviewed-on: https://go-review.googlesource.com/c/go/+/634095
Reviewed-by: Roland Shoemaker <roland@golang.org>
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2024-12-06 00:07:47 +00:00
Gopher Robot 9d8273817c doc/next: delete
The release note fragments have been merged and added
as _content/doc/go1.24.md in x/website in CL 634056.

For #68545.

Change-Id: I7b3840df01b8c3699681c0cd21a16af70f74d31d
Reviewed-on: https://go-review.googlesource.com/c/go/+/634057
Auto-Submit: Michael Knyszek <mknyszek@google.com>
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2024-12-05 22:41:12 +00:00
Gopher Robot d34e2ad194 api: promote next to go1.24
Change-Id: Iddede5cbbc7c6cb4335194719b69f49f1d8cd662
Reviewed-on: https://go-review.googlesource.com/c/go/+/634055
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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2024-12-05 21:40:08 +00:00
Junyang Shao 5213e1e56c testing: improve documentation, examples, release notes for
testing.b.Loop.

This CL added documentation of the no-inlining semantic of b.Loop, with
a concrete example. This CL also tries to improve the release note to be
more descriptive.

Fixes #61515

Change-Id: I1e13cc92d5d6bdbf40fb44f44475e249747b807f
Reviewed-on: https://go-review.googlesource.com/c/go/+/633536
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: David Chase <drchase@google.com>
2024-12-05 21:03:13 +00:00
Cherry Mui 32e19fc439 cmd/compile: document wasmexport directive, update permitted types for wasmimport
For #65199, #66984.

Change-Id: I9b651a00265fa7d3438d8a73ff04ddca7c4bed99
Reviewed-on: https://go-review.googlesource.com/c/go/+/633776
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2024-12-05 19:35:30 +00:00
Michael Matloob 1fe65836ac cmd/go/testdata/script: skip EndSequence entries in build_trimpath_cgo
The TestScript/build_trimpath_cgo test for cmd/go has been accessing a
nil pointer when it tries to look up LineEntry.File.Name on a line entry
with EndSequence set to true. The doc for EndSequence specifies that if
EndSequence is set, only it and the Address field are meaningful. Skip
the entries with EndSequence set when building the set of files.

Fixes #70669

Change-Id: I421a2a9348e727e3ac4a3d42baa4d206cfbc047b
Reviewed-on: https://go-review.googlesource.com/c/go/+/633038
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Reviewed-by: Than McIntosh <thanm@golang.org>
2024-12-05 19:15:00 +00:00
Conrad Irwin 6293a06831 doc/next: introduce module tools
Fixes #48429

Change-Id: Ie1954fc3bedd7d36cafaf3835b6c3a92326393f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/632556
Reviewed-by: Michael Matloob <matloob@golang.org>
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Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2024-12-05 18:56:33 +00:00
Russ Cox c3a706e1d2 crypto/internal/fips140/bigmod: add more //go:norace annotations
//go:norace does not carry over when a function is inlined.
Add //go:norace to functions that inline loops over Nat words.
Improves race tests, also asan, msan.

These are with -race:

goos: darwin
goarch: arm64
pkg: crypto/internal/fips140/bigmod
cpu: Apple M3 Pro
                  │     old      │                 new                 │
                  │    sec/op    │   sec/op     vs base                │
ModAdd-12            172.4n ± 3%   117.9n ± 3%  -31.62% (p=0.000 n=20)
ModSub-12            147.1n ± 2%   111.4n ± 3%  -24.27% (p=0.000 n=20)
NewModulus-12       12.966µ ± 1%   9.743µ ± 2%  -24.86% (p=0.000 n=20)
MontgomeryRepr-12   1305.5n ± 1%   986.3n ± 0%  -24.45% (p=0.000 n=20)
MontgomeryMul-12    1304.0n ± 1%   976.8n ± 0%  -25.10% (p=0.000 n=20)
ModMul-12            2.893µ ± 1%   2.055µ ± 3%  -28.97% (p=0.000 n=20)
ExpBig-12            2.784m ± 0%   2.789m ± 0%   +0.17% (p=0.008 n=20)
Exp-12               3.468m ± 0%   2.620m ± 0%  -24.45% (p=0.000 n=20)
geomean              7.930µ        6.073µ       -23.41%

pkg: crypto/rsa
                             │      old      │                 new                  │
                             │    sec/op     │    sec/op     vs base                │
DecryptPKCS1v15/2048-12         1.795m ±  1%   1.175m ±  1%  -34.52% (p=0.000 n=20)
DecryptPKCS1v15/3072-12         3.836m ±  2%   2.647m ±  0%  -31.01% (p=0.000 n=20)
DecryptPKCS1v15/4096-12         7.316m ±  0%   5.437m ±  0%  -25.68% (p=0.000 n=20)
EncryptPKCS1v15/2048-12         45.85µ ±  1%   34.78µ ±  0%  -24.15% (p=0.000 n=20)
DecryptOAEP/2048-12             1.793m ±  2%   1.188m ±  1%  -33.76% (p=0.000 n=20)
EncryptOAEP/2048-12             55.11µ ±  1%   43.91µ ±  1%  -20.32% (p=0.000 n=20)
SignPKCS1v15/2048-12            1.797m ±  2%   1.193m ±  0%  -33.62% (p=0.000 n=20)
VerifyPKCS1v15/2048-12          45.16µ ±  1%   34.51µ ±  0%  -23.57% (p=0.000 n=20)
SignPSS/2048-12                 1.826m ±  2%   1.213m ±  0%  -33.55% (p=0.000 n=20)
VerifyPSS/2048-12               53.25µ ±  1%   42.40µ ±  1%  -20.36% (p=0.000 n=20)
GenerateKey/2048-12             323.7m ± 33%   209.0m ± 17%  -35.43% (p=0.000 n=20)
ParsePKCS8PrivateKey/2048-12   105.26µ ±  0%   94.74µ ±  0%   -9.99% (p=0.000 n=20)
geomean                         792.5µ         574.3µ        -27.53%

Change-Id: I1f1986cf2bac126d7346799b08b17d356b28d956
Reviewed-on: https://go-review.googlesource.com/c/go/+/633995
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
2024-12-05 18:54:13 +00:00
Cherry Mui aa464fb953 doc/next: add release notes for Wasm changes
Document wasmexport and WASI reactor/library mode. Also document
that we now permit more types for wasmimport.

Fixes #65199.
Updates #66984.
For #68545.

Change-Id: Id26a8c9496650cd154daed679b82223af1848eea
Reviewed-on: https://go-review.googlesource.com/c/go/+/634036
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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2024-12-05 18:27:51 +00:00
Sean Liao be297ba9b3 cmd/go: drop -v from go help get
Fixes #37301

Change-Id: I6d6ac818a73b907638f62d56bd5a7f00a6e6a5ba
Reviewed-on: https://go-review.googlesource.com/c/go/+/632178
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: Michael Matloob <matloob@golang.org>
2024-12-05 17:48:39 +00:00
Sean Liao 080466fffb embed: document exclusions more explicitly
Fixes #45197
Fixes #45744

Change-Id: Ic221da1b652f693c7aa37287932c0a8726f46765
Reviewed-on: https://go-review.googlesource.com/c/go/+/633815
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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2024-12-05 17:20:19 +00:00
Cherry Mui be0c4547d2 doc/next: add linker change release notes
Document that we now generate GNU build ID or Mach-O UUID by
default, and the related flags to disable or override it.

Fixes #68678.
Fixes #70586.
For #68545.

Change-Id: Ic79f3c05aab8a5032ba6983b8c72eeb4202bfe84
Reviewed-on: https://go-review.googlesource.com/c/go/+/633875
Reviewed-by: David Chase <drchase@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2024-12-05 17:15:30 +00:00
thepudds adfd81d8cd weak: fix subheading syntax in package doc
Go doc comments only support one level of heading.

Change-Id: I458f211bc7547a0676a59fdcb72f52ca480bf184
Reviewed-on: https://go-review.googlesource.com/c/go/+/633881
Auto-Submit: Michael Knyszek <mknyszek@google.com>
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2024-12-05 14:57:05 +00:00
Michael Anthony Knyszek c46ba1f9ef weak: massage package docs a little bit
This is an attempt to clarify the "advice" section of the package docs a
little bit and encourage a specific style of use for weak structures.
It's not perfect, but it's something.

Change-Id: Id84b76d207619cc2e78439c5c903ec9575199734
Reviewed-on: https://go-review.googlesource.com/c/go/+/633675
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Reviewed-by: Carlos Amedee <carlos@golang.org>
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2024-12-04 22:20:08 +00:00
Michael Anthony Knyszek 795d95d6ba doc/next: add release notes for runtime and sync
Also, move the weak package heading to the end; it currently overlaps
with 1-osroot.md in the sort order.

For #68545.

Change-Id: Ia26ae511eaab7c8762e42d1593ac2197d25bbadb
Reviewed-on: https://go-review.googlesource.com/c/go/+/633599
Reviewed-by: David Chase <drchase@google.com>
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2024-12-04 22:20:05 +00:00
Sean Liao 32ff485c7c math/bits: update reference to debruijn paper
The old link no longer works.

Fixes #70684

Change-Id: I8711ef7d5721bf20ef83f5192dd0d1f73dda6ce1
Reviewed-on: https://go-review.googlesource.com/c/go/+/633775
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
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Reviewed-by: Keith Randall <khr@google.com>
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2024-12-04 22:15:36 +00:00
Michael Matloob 6123209657 cmd/go/internal/cache: always check error from stat in markUsed
markUsed was not checking that the error from os.Stat was nil before
trying to access the FileInfo entry returned by it. Instead, always
check the error and return false if it's non-nil (usually because the
file does not exist). This can happen if an index entry exists in the
cache, but the output entry it points to does not. markUsed is called at
different points for the index entry and for the output entry, so it's
possible for the index entry to be marked used, and then for another go
process to trim the cache, deleting the output entry.  I'm not sure how
likely that is, or if this is what has been triggering the user observed
instances of #70600, but it's enough for a test case.

Fixes #70600

Change-Id: Ia6be14b4a56736d06488ccf93c3596fff8159f22
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2024-12-04 18:20:54 +00:00
Sean Liao 6f42fe9141 bufio: document Reader must be created with New functions
Fixes #37347

Change-Id: Id642dbe7e52933f8d6cf7116c3c27ddb74efba9d
Reviewed-on: https://go-review.googlesource.com/c/go/+/633315
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2024-12-04 18:13:00 +00:00
Jorropo d241ea8d5c sync/atomic: add missing leak tests for And & Or
Theses tests were forgot because when CL 462298 was originally written
And & Or atomics were not available in go.
Git were smart enough to rebase over And's & Or's addition.
After most reviews and before merging it were pointed I should
make theses new intrinsics noescape.
When doing this last minute addition I forgot to add tests.

Change-Id: I457f98315c0aee91d5743058ab76f256856cb782
Reviewed-on: https://go-review.googlesource.com/c/go/+/633416
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: David Chase <drchase@google.com>
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2024-12-04 17:30:39 +00:00
Jorropo 4c3aa5d324 math/rand/v2: replace <= 0 with == 0 for Uint function docs
This harmonize the docs with (*Rand).Uint* functions.
And it make it clearer, I wasn't sure if it would try to interpret
the uint as a signed number somehow, it does not pull any surprises
make that clear.

Change-Id: I5a87a0a5563dbabfc31e536e40ee69b11f5cb6cf
Reviewed-on: https://go-review.googlesource.com/c/go/+/633535
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2024-12-04 16:34:07 +00:00
Alexey Palazhchenko ccf4ebbb61 runtime: remove "hall of shame" comment from public documentation
See https://pkg.go.dev/runtime@go1.23.4#FuncForPC

The updated comment uses the same format as bytes.Repeat and math.Float32bits.

Change-Id: Idfbc38645e6b0f03fb07f294c4c79b997d9a01a1
GitHub-Last-Rev: 00fa155c75
GitHub-Pull-Request: golang/go#70671
Reviewed-on: https://go-review.googlesource.com/c/go/+/633475
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
2024-12-04 04:10:56 +00:00
Sean Liao bc0406333f sync: document RWMutex locks cannot be upgraded / downgraded
Fixes #38859

Change-Id: I9f4f6fa4cb529aaadfb3812e3a5c0da982a95f68
Reviewed-on: https://go-review.googlesource.com/c/go/+/633415
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2024-12-04 02:44:30 +00:00
Robert Griesemer 2a0aeb1234 doc/next: minor grammar fix in release notes
For #66626.
For #68545.

Change-Id: I4fe21bdaa9580eb087c849de72e98f6145121dd0
Reviewed-on: https://go-review.googlesource.com/c/go/+/633282
Reviewed-by: Robert Griesemer <gri@google.com>
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2024-12-03 22:11:14 +00:00
Damien Neil 953a1bec48 runtime: avoid defer on system stack in synctestidle_c
Fixes #70661

Change-Id: I58a465cfb1cd16709ffbb072eca0997569540074
Reviewed-on: https://go-review.googlesource.com/c/go/+/633281
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2024-12-03 21:42:30 +00:00
Michael Anthony Knyszek 4daf7922f3 cmd/link/internal/ld: work around FreeBSD 14.1 cmd/cgo test link failure
On FreeBSD 14.1 we fail to link against C code with internal linking.
The symptom is apparently undefined symbols, but explicitly pointing the
linker at compiler-rt for -libgcc fixes the issue. This looks a lot like
the workaround on OpenBSD, but the symptom is different.
--print-libgcc-file-name produces libclang_rt.builtins-x86_64.a which
appears to be an insufficient subset of libcompiler_rt.a.

For #61095.

Change-Id: Iff5affbc923d69c89d671a69d8f4ecaadac42177
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2024-12-03 20:01:57 +00:00
Russ Cox bdedc5c1d7 crypto/internal/fips140/bigmod: disable race detector on tight loops
These kinds of loops over all words of a Nat
were in assembly in math/big, so the race detector
did not instrument them. Now that they are in Go,
they dramatically slow down crypto code under the
race detector. Disable instrumenting them, just like
if they were still in assembly.

goos: darwin
goarch: arm64
cpu: Apple M3 Pro
race: on

pkg: crypto/internal/fips140/bigmod
                  │     old      │                 new                 │
                  │    sec/op    │   sec/op     vs base                │
ModAdd-12           1191.0n ± 1%   164.7n ± 2%  -86.18% (p=0.000 n=30)
ModSub-12           1179.5n ± 5%   145.6n ± 2%  -87.66% (p=0.000 n=30)
MontgomeryRepr-12    2.022µ ± 0%   1.300µ ± 1%  -35.71% (p=0.000 n=30)
MontgomeryMul-12     2.111µ ± 1%   1.302µ ± 0%  -38.34% (p=0.000 n=30)
ModMul-12            4.160µ ± 1%   2.868µ ± 1%  -31.06% (p=0.000 n=30)
ExpBig-12            2.780m ± 0%   2.767m ± 0%   -0.49% (p=0.000 n=30)
Exp-12               8.751m ± 4%   3.451m ± 1%  -60.56% (p=0.000 n=30)
geomean              17.98µ        7.306µ       -59.36%

pkg: crypto/rsa
                             │      old      │                 new                  │
                             │    sec/op     │    sec/op     vs base                │
DecryptPKCS1v15/2048-12         5.537m ±  4%   1.754m ±  1%  -68.32% (p=0.000 n=30)
DecryptPKCS1v15/3072-12        12.153m ±  1%   3.827m ±  1%  -68.51% (p=0.000 n=30)
DecryptPKCS1v15/4096-12        21.889m ±  1%   7.251m ±  1%  -66.87% (p=0.000 n=30)
EncryptPKCS1v15/2048-12         87.98µ ±  0%   45.47µ ±  1%  -48.33% (p=0.000 n=30)
DecryptOAEP/2048-12             5.583m ±  5%   1.777m ±  2%  -68.17% (p=0.000 n=30)
EncryptOAEP/2048-12             98.99µ ±  0%   54.57µ ±  0%  -44.87% (p=0.000 n=30)
SignPKCS1v15/2048-12            5.542m ±  3%   1.756m ±  2%  -68.32% (p=0.000 n=30)
VerifyPKCS1v15/2048-12          84.22µ ±  1%   44.80µ ±  1%  -46.81% (p=0.000 n=30)
SignPSS/2048-12                 5.595m ±  5%   1.799m ±  2%  -67.84% (p=0.000 n=30)
VerifyPSS/2048-12               92.06µ ±  1%   52.72µ ±  1%  -42.73% (p=0.000 n=30)
GenerateKey/2048-12            2744.0m ± 38%   304.1m ± 11%  -88.92% (p=0.000 n=30)
ParsePKCS8PrivateKey/2048-12    888.0µ ±  1%   101.8µ ±  0%  -88.54% (p=0.000 n=30)
geomean                         2.428m         778.5µ        -67.93%


goos: linux
goarch: amd64
cpu: AMD Ryzen 9 7950X 16-Core Processor
race: on

pkg: crypto/internal/fips140/bigmod
                  │     old     │                 new                 │
                  │   sec/op    │   sec/op     vs base                │
ModAdd-32           900.7n ± 3%   124.2n ± 2%  -86.21% (p=0.000 n=30)
ModSub-32           895.5n ± 8%   117.1n ± 1%  -86.92% (p=0.000 n=30)
MontgomeryRepr-32   1.669µ ± 3%   1.038µ ± 1%  -37.82% (p=0.000 n=30)
MontgomeryMul-32    1.646µ ± 4%   1.033µ ± 1%  -37.25% (p=0.000 n=30)
ModMul-32           3.384µ ± 5%   2.124µ ± 1%  -37.22% (p=0.000 n=30)
ExpBig-32           2.573m ± 2%   2.561m ± 1%        ~ (p=0.146 n=30)
Exp-32              7.188m ± 2%   2.746m ± 1%  -61.80% (p=0.000 n=30)
geomean             14.56µ        5.844µ       -59.86%

pkg: crypto/rsa
                             │      old      │                 new                  │
                             │    sec/op     │    sec/op     vs base                │
DecryptPKCS1v15/2048-32         4.111m ±  1%   1.233m ±  1%  -70.00% (p=0.000 n=30)
DecryptPKCS1v15/3072-32         9.443m ±  1%   2.955m ±  1%  -68.70% (p=0.000 n=30)
DecryptPKCS1v15/4096-32        17.261m ±  1%   5.744m ±  1%  -66.72% (p=0.000 n=30)
EncryptPKCS1v15/2048-32         66.31µ ±  1%   36.16µ ±  1%  -45.46% (p=0.000 n=30)
DecryptOAEP/2048-32             4.107m ±  2%   1.241m ±  1%  -69.80% (p=0.000 n=30)
EncryptOAEP/2048-32             72.19µ ±  0%   42.35µ ±  1%  -41.34% (p=0.000 n=30)
SignPKCS1v15/2048-32            4.145m ±  1%   1.257m ±  2%  -69.68% (p=0.000 n=30)
VerifyPKCS1v15/2048-32          65.14µ ±  1%   34.95µ ±  1%  -46.36% (p=0.000 n=30)
SignPSS/2048-32                 4.005m ±  2%   1.271m ±  1%  -68.26% (p=0.000 n=30)
VerifyPSS/2048-32               70.76µ ±  0%   40.72µ ±  1%  -42.46% (p=0.000 n=30)
GenerateKey/2048-32            1946.4m ± 19%   236.3m ± 18%  -87.86% (p=0.000 n=30)
ParsePKCS8PrivateKey/2048-32   713.94µ ±  1%   85.89µ ±  1%  -87.97% (p=0.000 n=30)
geomean                         1.829m         591.5µ        -67.66%

Change-Id: I49cbb6d14b187100bf5e6002e30096667689d852
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2024-12-03 18:15:37 +00:00
cuishuang 9d76157e2d sort: add examples for SearchStrings, SliceIsSorted
Change-Id: I80b5c99bd8626be6e347f535579c864a565685db
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2024-12-03 17:07:42 +00:00
Junyang Shao a8be834912 cmd/compile: fix a premature-deallocation of state in loopreschedchecks
lastMems is free-ed before it's actually used. This results in the pass
breaking: multiple mem phis will present in the instrumented ssa, and
essentially break tighten
pass(https://cs.opensource.google/go/go/+/master:src/cmd/compile/internal/ssa/tighten.go;l=240).

This CL fix that.

Change-Id: I30cf0c3300ed59d1a15d978757a3840fbe04484d
Reviewed-on: https://go-review.googlesource.com/c/go/+/632516
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2024-12-03 16:22:55 +00:00
Filippo Valsorda 485ed2fa5b crypto/rsa: return error if keygen random source is broken
Fixes #70643

Change-Id: I47c76500bb2e79b0d1dc096651eb45885f6888b6
Reviewed-on: https://go-review.googlesource.com/c/go/+/632896
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2024-12-03 00:06:52 +00:00
Filippo Valsorda 106c804751 crypto/rsa: fix keys with p < q
Updates #70643

Change-Id: I4aee8373dbddf774564902b3957c6eba11d15fc9
Reviewed-on: https://go-review.googlesource.com/c/go/+/632955
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2024-12-03 00:06:14 +00:00
Filippo Valsorda ab59a4f985 crypto/internal/fips140/rsa: add Pairwise Consistency Test
For #69536

Change-Id: I2cbb03fc942f5542b8a26347213304c2a3cb5268
Reviewed-on: https://go-review.googlesource.com/c/go/+/632537
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2024-12-03 00:06:10 +00:00
Filippo Valsorda 17b00789d3 crypto/rsa: allow keys larger than 16384 bits in FIPS mode
Nothing in the standard enforces an upper limit, and we can try
documenting an open range in the Security Policy. Worst case, this is
easy to revert.

For #69536

Change-Id: Id3082e73556fdcd6d2e6c2054c512516e9156c5c
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2024-12-03 00:06:07 +00:00
Filippo Valsorda fb41d5eb51 crypto/rsa: minor FIPS 186-5 compliance fixes
None of these checks actually matter, and indeed we didn't have them
before, but they are required by FIPS 186-5.

Fixes #69799
For #69536

Change-Id: I5e866962a1b2a31a753053e5b9ec50a3f4c87394
Reviewed-on: https://go-review.googlesource.com/c/go/+/632535
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2024-12-03 00:06:03 +00:00
Cherry Mui 50a8b3a30e hash/maphash, cmd/compile: make Comparable[string] not escape its argument
Currently, maphash.Comparable forces its argument to escape if it
contains a pointer, as we cannot hash stack pointers, which will
change when the stack moves. However, for a string, it is actually
okay if its data pointer points to the stack, as the hash depends
on only the content, not the pointer.

Currently there is no way to write this type-dependent escape
logic in Go code. So we implement it in the compiler as an
intrinsic. The compiler can also recognize not just the string
type, but types whose pointers are all string pointers, and make
them not escape.

Fixes #70560.

Change-Id: I3bf219ad71a238d2e35f0ea33de96487bc8cc231
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2024-12-02 21:27:06 +00:00
cuishuang 7632c6e2bd cmd/go: add go prefix in base.Fatalf
For #70537

Change-Id: I20e239611f07aa13915367c3a44994a43b5482d7
Reviewed-on: https://go-review.googlesource.com/c/go/+/631535
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2024-12-02 20:37:02 +00:00
Dmitri Shuralyov 3374abeb50 testing: consider -N suffix after benchmark name optional
A "-N" suffix is left out when GOMAXPROCS is 1.

Also match at least 1 space (\s+ instead of \s*), remove trailing '.*'
(it's a no-op), and make the test error message style more consistent
while here.

For #61515.
Fixes #70627.

Change-Id: Id0a17478ac31e2934a663dd0d3b1b37f24974989
Cq-Include-Trybots: luci.golang.try:gotip-plan9-386
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2024-12-02 18:59:26 +00:00
Wesley Beary e5489a34ca crypto/x509: add missing `be` to comment about serial number positivity
Change-Id: I4e0e5309eb3cb1c6820f1a034a5f52adffe35645
GitHub-Last-Rev: 74b2e89bbd
GitHub-Pull-Request: golang/go#70639
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2024-12-02 17:03:18 +00:00
Russ Cox c5adb82169 crypto/rsa: check hash message length first in SignPKCS1v15
This restores the error checking behavior from Go 1.23.
In particular, the boringcrypto code path now contains this
check again.

Change-Id: Ie38c68c27bc3a95c6a0b5a78fc4196694527cd6b
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2024-11-30 03:42:43 +00:00
Filippo Valsorda dd7ab5ec5d crypto/internal/fips140/rsa: do trial divisions in key generation
This is optimized to be cheap in terms of extra code and complexity,
rather than performance, so we reuse the GCD we have for inverting d.

Recovers most of the performance loss since CL 630516, although
benchmarking key generation is by nature extremely noisy.

goos: darwin
goarch: arm64
pkg: crypto/rsa
cpu: Apple M2
                   │ 3b42687c56  │           b3d018a1e8-dirty           │
                   │   sec/op    │    sec/op     vs base                │
GenerateKey/2048-8   104.1m ± 7%   139.7m ± 20%  +34.10% (p=0.000 n=20)

Updates #69799
For #69536

Change-Id: I00347610935db8feb0597529a301ad7ace5b2f22
Reviewed-on: https://go-review.googlesource.com/c/go/+/632479
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2024-11-30 01:49:37 +00:00
Filippo Valsorda c5c4f3dd5f crypto/x509: keep RSA CRT values in ParsePKCS1PrivateKey
Turns out that recomputing them (and qInv in particular) in constant
time is expensive, so let's not throw them away when they are available.
They are much faster to check, so we now do that on precompute.

Also, thanks to the opaque crypto/internal/fips140/rsa.PrivateKey type,
we now have some assurance that the values we use are always ones we
checked.

Recovers most of the performance loss since CL 630516 in the happy path.
Also, since now we always use the CRT, if necessary by running a
throwaway Precompute, which is now cheap if PrecomputedValues is filled
out, we effectively fixed the JSON round-trip slowdown (#59695).

goos: darwin
goarch: arm64
pkg: crypto/rsa
cpu: Apple M2
                            │ 3b42687c56  │          f017604bc6-dirty           │
                            │   sec/op    │   sec/op     vs base                │
ParsePKCS8PrivateKey/2048-8   26.76µ ± 1%   65.99µ ± 1%  +146.64% (p=0.002 n=6)

Fixes #59695
Updates #69799
For #69536

Change-Id: I507f8c5a32e69ab28990a3bf78959836b9b08cc9
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2024-11-30 01:49:35 +00:00
Filippo Valsorda acd54c9985 crypto/rsa: move key generation to crypto/internal/fips140/rsa
It's about 2x slower, but we'll recover that by implementing trial
divisions in a follow-up CL.

Updates #69799
For #69536

Change-Id: Icc02f5a268b658d629bbe7fdaf2a42ad3b259e2c
Reviewed-on: https://go-review.googlesource.com/c/go/+/632477
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2024-11-30 01:49:33 +00:00
Filippo Valsorda 7d7192e54f crypto/rsa: move precomputation to crypto/internal/fips140/rsa
We are severely limited by the crypto/rsa API in a few ways:

 - Precompute doesn't return an error, but is the only function allowed
   to modify a PrivateKey.

 - Clients presumably expect the PrecomputedValues big.Ints to be
   populated after Precompute.

 - MarshalPKCS1PrivateKey requires the precomputed values, and doesn't
   have an error return.

 - PrivateKeys with only N, e, and D have worked so far, so they might
   have to keep working.

To move precomputation to the FIPS module, we focus on the happy path of
a PrivateKey with two primes where Precompute is called before anything
else, which match ParsePKCS1PrivateKey and GenerateKey.

There is a significant slowdown in the Parse benchmark due to the
constant-time inversion of qInv. This will be addressed in a follow-up
CL that will use (and check) the value in the ASN.1.

Note that the prime product check now moved to checkPrivateKey is broken
(Π should start at 1 not 0) and fixed in CL 632478.

Updates #69799
For #69536

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2024-11-30 01:49:31 +00:00
Filippo Valsorda fa38b41be9 crypto/internal/fips140/rsa: check that e and N are odd
N needs to be odd or we can't call Nat.Exp with it. This was previously
enforced at the Modulus level, but was relaxed in CL 630515.

While at it, also assert that e is odd. If it's even, there is no
possible corresponding private key, and we might as well error out.

Change-Id: I43a6c6e5789683854e4aece650fbf85166b6c318
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2024-11-30 01:47:06 +00:00
Filippo Valsorda f7475a0af3 crypto/internal/fips140/bigmod: add Nat.InverseVarTime
Will be needed for RSA key generation.

We now require Modulus to be > 1 because we don't want to worry about 1
being out of range. There is no use for a Modulus of 1 anyway, and we
already return an error from NewModulus.

Ported from https://cs.opensource.google/boringssl/boringssl/+/master:crypto/fipsmodule/bn/gcd_extra.cc.inc;drc=5813c2c10c73d800f1b0d890a7d74ff973abbffc.

Updates #69799
For #69536

Change-Id: I9850bcc461565b23fa7186a09c65355f7da3e5ba
Reviewed-on: https://go-review.googlesource.com/c/go/+/632415
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>
Reviewed-by: Russ Cox <rsc@golang.org>
2024-11-30 01:47:04 +00:00
Filippo Valsorda 22b5c145fb crypto/internal/fips140/rsa: add Miller-Rabin test
A following CL will move key generation to crypto/internal/fips140/rsa.

Updates #69799
For #69536

Change-Id: Icdf9b8424da20453939c6587af7dc922aad9e0ca
Reviewed-on: https://go-review.googlesource.com/c/go/+/632215
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Daniel McCarney <daniel@binaryparadox.net>
2024-11-30 01:46:21 +00:00
Dmitri Shuralyov caee788a48 doc/next: organize 9-todo.md items by category
Most items that need to be done are tracked in release-blocking issues,
but a few are not. Make it easier to understand and track their status.

For #68545.

Change-Id: I1cb31e67d2d868a82ee592c9adb31bc5dd558d67
Reviewed-on: https://go-review.googlesource.com/c/go/+/632195
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-11-28 02:59:28 +00:00
Tim King 797141e94c doc/next: document buildtag changes
Fixes #64127

Change-Id: I1562953caa3b1b2bc5dd3b7692671e0f3d5d2b9b
Reviewed-on: https://go-review.googlesource.com/c/go/+/632355
Commit-Queue: Tim King <taking@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-11-28 00:07:29 +00:00