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61728 Commits

Author SHA1 Message Date
Russ Cox
f7b15264c8 cmd/dist: vet non-test packages in short mode
Pass all packages to go test, even if they don't have test files,
so that go test can still run vet.

I just got burned by a vet error in a package without a test
showing up when I added an (unrelated) test.
There are not enough packages without tests to be worth
the "savings" of not letting the go command vet those packages.

For #60463.

Change-Id: Ib9258655151144dce6a51deeae73d651aa46cb2c
Reviewed-on: https://go-review.googlesource.com/c/go/+/630015
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2024-11-21 16:10:16 +00:00
Russ Cox
ce33585a1a cmd/dist: adjust FIPS 140 tests
An earlier CL moved the actual test from crypto/internal/fips/check
to crypto/internal/fipstest (now crypto/internal/fips140test),
so this cmd/dist check has been doing nothing for a little while.
Fix it to do what it intends.

Also run the actual crypto package tests in FIPS mode in long mode.

Change-Id: Iea8113376b95ec068a459cb8f3d0e77d3e2340f6
Reviewed-on: https://go-review.googlesource.com/c/go/+/630116
Reviewed-by: Filippo Valsorda <filippo@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2024-11-21 16:10:06 +00:00
Michael Pratt
02df9bbdbd reflect: set swissmap GroupSize
This was missed in CL 627716.

For #54766.

Change-Id: Ib987efa8abe6e89367e2e1b71a33b64ac6b01b1f
Reviewed-on: https://go-review.googlesource.com/c/go/+/630279
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-11-21 15:52:29 +00:00
Michael Matloob
6daf022e0f cmd/go remove base.ShortPathConservative
This CL rolls forward CL 630276, fixing the issues with the longtest builders that required the revert in CL 630317.

The change this CL makes compared to CL 630276 is adding the
shortPathErrorList function to rewrite the paths in the modfile.Errors
in a modfile.ErrorList using base.ShortPath and calling it on the error
returned from modfile.Parse.

The following is the commit message from the original change:

This CL first removes the base.ShortPathConservative function. It had
two classes of uses. The first was in opening files where the paths end
up in error messages. In all those cases, the non-shortened paths are
used to open the files, and ShortPath is only used for the error
messages. The second is in base.RelPaths. RelPaths will now call
ShortPath for each of the paths passed in instead of calling
RelConservative and then doing the same check as ShortPath to see if the
path is shorter.

To avoid the possibility of incorrect relative paths ending up in error
messages (that might have command lines suggested for users to run), and
to avoid the possibility of incorrect relative paths appearing in the
output of base.RelPaths, base.ShortPaths always does an os.SameFile
check to make sure that the relative path its providing is actually
correct. Since this makes ShortPath slower than just manipulating paths
(because we need to stat the files), we need to be continue to enforce
that ShortPath is only called for error messages (with the exception of
base.RelPaths and its callers).

This is a simpler way of solving the problem that base.ShortPaths
intended to solve.

For #68383

Change-Id: Ibcefb343535bd82999916b2282e9b512bb683433
Cq-Include-Trybots: luci.golang.try:gotip-windows-amd64-longtest,gotip-linux-amd64-longtest
Reviewed-on: https://go-review.googlesource.com/c/go/+/630280
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
2024-11-21 15:47:21 +00:00
Conrad Irwin
a5c1b1c433 cmd/go: cache executables for tools defined in go.mod
This allows for executables created by `go tool` to be re-used from the
cache.

Change-Id: I382672239244beb3cf6e227182f550c049de102b
Reviewed-on: https://go-review.googlesource.com/c/go/+/630339
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
2024-11-21 15:44:19 +00:00
Damien Neil
57147256e6 os: recognize EFTYPE, EINVAL as a refusal to open a symlink
NetBSD returns EFTYPE when opening a symlink with O_NOFOLLOW.

Dragonfly seems to return EINVAL. Only check for EINVAL on Dragonfly,
since that seems like a bit of a broad net.

Change-Id: I031357816f1fe4c370373001207e65996087597f
Reviewed-on: https://go-review.googlesource.com/c/go/+/630396
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2024-11-21 15:20:22 +00:00
Keith Randall
0a0a7a5642 cmd/compile: fix rewrite rules for multiply/add
x - (y - c) == (x - y) + c, not (x - y) - c. Oops.

Fixes #70481

Change-Id: I0e54d8e65dd9843c6b92c543ac69d69ee21f617c
Reviewed-on: https://go-review.googlesource.com/c/go/+/630397
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Jakub Ciolek <jakub@ciolek.dev>
Auto-Submit: Keith Randall <khr@golang.org>
2024-11-21 15:06:30 +00:00
Michael Matloob
3ff868f2f5 cmd/go: cache executables built for go run
This change implements executable caching. It always caches the outputs of
link steps used by go run. To do so we need to make a few changes:

The first is that we want to cache binaries in a slightly different
location than we cache other outputs. The reason for doing so is so that
the name of the file could be the name of the program built.  Instead of
placing the files in $GOCACHE/<two digit prefix>/<hash>-d, we place them
in $GOCACHE/<two digit prefix>/<hash>-d/<executable name>. This is done
by adding a new function called PutExecutable that works differently
from Put in two ways: first, it causes the binaries to written 0777
rather than 0666 so they can be executed.  Second, PutExecutable also
writes its outputs to a new location in a directory with the output id
based name, with the file named based on p.Internal.ExeName or otherwise
the base name of the package (plus the .exe suffix on Windows).

The next changes are for writing and reading binaries from the cache. In
cmd/go/internal/work.updateBuildID, which updates build ids to the
content based id and then writes outputs to the cache, we first make the
change to always write the content based id into a binary. This is
because we won't be throwing the binaries away after running them. Then,
if the action is a link action, and we enabled excutable caching for the
action, we write the output to the binary cache.

When reading binaries, in the useCache function, we switch to using the
binary cache, and we also print the cached link outputs (which are
stored using the build action's action id).

Finally, we change go run to execute the built output from the cache.

The support for caching tools defined in a module that are run by go
tool will also use this functionality.

Fixes #69290
For #48429

Change-Id: Ic5f1d3b29d8e9786fd0d564460e3a5f53e951f41
Reviewed-on: https://go-review.googlesource.com/c/go/+/613095
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-11-21 14:52:30 +00:00
Russ Cox
28f4e14ebe crypto/internal/fips140deps: fix test for running in FIPS snapshot
In a FIPS snapshot, the import paths have a snapshot version number.
Remove that version in the test before proceeding with the usual checks.

Change-Id: I15c9d11dcac6d33330b334b8e5056c215bffa75c
Reviewed-on: https://go-review.googlesource.com/c/go/+/629977
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2024-11-21 10:40:09 +00:00
Robert Griesemer
a2a4f00783 go/types, types2: simplify Checker.resolveBaseTypeName (cleanup)
Method receivers that denote cgo-generated types are not permitted
per issues #60725 and #57926. There's no need to collect such methods
in the first place. Simplify Checker.resolveBaseTypeName so that it
doesn't find a base type name in these cases.

Also, simplify the test case for issue #59944 and update it to use
current cgo-generated output.

For #60725.
For #57926.
For #59944.

Change-Id: I70594daebc3d4d594c5b06be138f66f8927b0e58
Reviewed-on: https://go-review.googlesource.com/c/go/+/630395
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Robert Griesemer <gri@google.com>
2024-11-21 05:01:49 +00:00
Robert Griesemer
b631b8e674 go/types, types: better error message position for invalid receiver errors
Errors related to invalid receivers are based on the receiver base type.
Position the error message at the receiver base type, not the receiver
variable.

Add an additional example with an (invalid) generic receiver type.

Also, fix a panic when the code is run w/o Alias types enabled.

Change-Id: I610df171e4c447bbe03b904937c12e4170508b3b
Reviewed-on: https://go-review.googlesource.com/c/go/+/630376
Reviewed-by: Tim King <taking@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-11-21 05:01:47 +00:00
Ian Lance Taylor
a9428eab40 cmd/cgo/internal/testsanitizers: use t.TempDir
Change-Id: I6b2c25ab045aaec8bb6c25511b12d178d155fc25
Reviewed-on: https://go-review.googlesource.com/c/go/+/630338
Reviewed-by: Cherry Mui <cherryyz@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
2024-11-21 02:18:27 +00:00
Ian Lance Taylor
f96987888f cmd/cgo/internal/testsanitizers: don't create fuzz corpus
The TestASANFuzz test would sometimes create a fuzz corpus
in testdata/testdata/FuzzReverse. Avoid modifying the source
directory by building the test with "go test -c" and running
it in a temporary directory.

Change-Id: I12e2da4c85165fa35e0dc1aa6b46c6d0fbccaab8
Reviewed-on: https://go-review.googlesource.com/c/go/+/630377
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
2024-11-21 02:17:08 +00:00
Rhys Hiltner
adc9c45587 runtime: clean up new lock2 structure
Simplify some flow control, as suggested on https://go.dev/cl/620435.

The MutexCapture microbenchmark shows a bit of throughput improvement at
moderate levels of contention, and little change to capture and
starvation. (Note that the capture and starvation figures below are in
terms of power-of-two buckets multiplied by throughput, so they either
follow similar patterns or move by a factor of two.)

For #68578

goos: linux
goarch: amd64
pkg: runtime
cpu: 13th Gen Intel(R) Core(TM) i7-13700H
                │     old      │                 new                  │
                │    sec/op    │    sec/op     vs base                │
MutexCapture      18.21n ±  0%   18.35n ±  0%   +0.77% (p=0.000 n=10)
MutexCapture-2    21.46n ±  8%   21.05n ± 12%        ~ (p=0.796 n=10)
MutexCapture-3    22.56n ±  9%   22.59n ± 18%        ~ (p=0.631 n=10)
MutexCapture-4    22.85n ±  5%   22.74n ±  2%        ~ (p=0.565 n=10)
MutexCapture-5    22.84n ±  5%   22.50n ± 14%        ~ (p=0.912 n=10)
MutexCapture-6    23.33n ± 14%   22.22n ±  3%   -4.78% (p=0.004 n=10)
MutexCapture-7    27.04n ± 14%   23.78n ± 15%        ~ (p=0.089 n=10)
MutexCapture-8    25.44n ± 10%   23.03n ±  6%   -9.48% (p=0.004 n=10)
MutexCapture-9    25.56n ±  7%   24.39n ± 11%        ~ (p=0.218 n=10)
MutexCapture-10   26.77n ± 10%   24.00n ±  7%  -10.33% (p=0.023 n=10)
MutexCapture-11   27.02n ±  7%   24.55n ± 15%   -9.18% (p=0.035 n=10)
MutexCapture-12   26.71n ±  8%   24.96n ±  8%        ~ (p=0.148 n=10)
MutexCapture-13   25.58n ±  4%   25.82n ±  5%        ~ (p=0.271 n=10)
MutexCapture-14   26.86n ±  6%   25.91n ±  7%        ~ (p=0.529 n=10)
MutexCapture-15   25.12n ± 13%   26.16n ±  4%        ~ (p=0.353 n=10)
MutexCapture-16   26.18n ±  4%   26.21n ±  9%        ~ (p=0.838 n=10)
MutexCapture-17   26.04n ±  4%   25.85n ±  5%        ~ (p=0.363 n=10)
MutexCapture-18   26.02n ±  7%   25.93n ±  5%        ~ (p=0.853 n=10)
MutexCapture-19   25.67n ±  5%   26.21n ±  4%        ~ (p=0.631 n=10)
MutexCapture-20   25.50n ±  6%   25.99n ±  8%        ~ (p=0.404 n=10)
geomean           24.73n         24.02n         -2.88%

                │      old       │                  new                   │
                │ sec/streak-p90 │ sec/streak-p90  vs base                │
MutexCapture        76.36m ±  0%    76.96m ±   0%   +0.79% (p=0.000 n=10)
MutexCapture-2     10.609µ ± 50%    5.390µ ± 119%        ~ (p=0.579 n=10)
MutexCapture-3      5.936µ ± 93%    5.782µ ±  18%        ~ (p=0.684 n=10)
MutexCapture-4      5.849µ ±  5%    5.820µ ±   2%        ~ (p=0.579 n=10)
MutexCapture-5      5.849µ ±  5%    5.759µ ±  14%        ~ (p=0.912 n=10)
MutexCapture-6      5.975µ ± 14%    5.687µ ±   3%   -4.81% (p=0.004 n=10)
MutexCapture-7      6.921µ ± 14%    6.086µ ±  18%        ~ (p=0.165 n=10)
MutexCapture-8      6.512µ ± 10%    5.894µ ±   6%   -9.50% (p=0.004 n=10)
MutexCapture-9      6.544µ ±  7%    6.245µ ±  11%        ~ (p=0.218 n=10)
MutexCapture-10     6.962µ ± 11%    6.144µ ±   7%  -11.76% (p=0.023 n=10)
MutexCapture-11     6.938µ ±  7%    6.284µ ± 130%        ~ (p=0.190 n=10)
MutexCapture-12     6.838µ ±  8%    6.408µ ±  13%        ~ (p=0.404 n=10)
MutexCapture-13     6.549µ ±  4%    6.608µ ±   5%        ~ (p=0.271 n=10)
MutexCapture-14     6.877µ ±  8%    6.634µ ±   7%        ~ (p=0.436 n=10)
MutexCapture-15     6.433µ ± 13%    6.697µ ±   4%        ~ (p=0.247 n=10)
MutexCapture-16     6.702µ ± 10%    6.711µ ± 116%        ~ (p=0.796 n=10)
MutexCapture-17     6.730µ ±  3%    6.619µ ±   5%        ~ (p=0.225 n=10)
MutexCapture-18     6.663µ ±  7%    6.716µ ±  13%        ~ (p=0.853 n=10)
MutexCapture-19     6.570µ ±  5%    6.710µ ±   4%        ~ (p=0.529 n=10)
MutexCapture-20     6.528µ ±  6%    6.775µ ±  11%        ~ (p=0.247 n=10)
geomean             10.66µ          10.00µ          -6.13%

                │      old       │                  new                   │
                │ sec/starve-p90 │ sec/starve-p90  vs base                │
MutexCapture-2    10.609µ ±  50%    5.390µ ± 119%        ~ (p=0.579 n=10)
MutexCapture-3     184.8µ ±  91%    183.9µ ±  48%        ~ (p=0.436 n=10)
MutexCapture-4     388.8µ ± 270%    375.6µ ± 280%        ~ (p=0.436 n=10)
MutexCapture-5     807.2µ ±  83%   2880.9µ ±  85%        ~ (p=0.105 n=10)
MutexCapture-6     2.272m ±  61%    2.173m ±  34%        ~ (p=0.280 n=10)
MutexCapture-7     1.351m ± 125%    2.990m ±  70%        ~ (p=0.393 n=10)
MutexCapture-8     3.328m ±  97%    3.064m ±  96%        ~ (p=0.739 n=10)
MutexCapture-9     3.526m ±  91%    3.081m ±  47%  -12.62% (p=0.015 n=10)
MutexCapture-10    3.641m ±  86%    3.228m ±  90%  -11.34% (p=0.005 n=10)
MutexCapture-11    3.324m ± 109%    3.190m ±  71%        ~ (p=0.481 n=10)
MutexCapture-12    3.519m ±  77%    3.200m ± 106%        ~ (p=0.393 n=10)
MutexCapture-13    3.353m ±  91%    3.368m ±  99%        ~ (p=0.853 n=10)
MutexCapture-14    3.314m ± 101%    3.396m ± 286%        ~ (p=0.353 n=10)
MutexCapture-15    3.534m ±  83%    3.397m ±  91%        ~ (p=0.739 n=10)
MutexCapture-16    3.485m ±  90%    3.436m ± 116%        ~ (p=0.853 n=10)
MutexCapture-17    6.516m ±  48%    3.452m ±  88%        ~ (p=0.190 n=10)
MutexCapture-18    6.645m ± 105%    3.439m ± 108%        ~ (p=0.218 n=10)
MutexCapture-19    6.521m ±  46%    4.907m ±  42%        ~ (p=0.529 n=10)
MutexCapture-20    6.532m ±  47%    3.516m ±  89%        ~ (p=0.089 n=10)
geomean            1.919m           1.783m          -7.06%

Change-Id: I36106e1baf8afd132f1568748d1b83b797fa260e
Reviewed-on: https://go-review.googlesource.com/c/go/+/629415
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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Auto-Submit: Rhys Hiltner <rhys.hiltner@gmail.com>
2024-11-20 23:27:49 +00:00
Damien Neil
c315862c99 os: add OpenInRoot
For #67002

Change-Id: If919ee8a5e3d90e91c7848330762e3254245fba1
Reviewed-on: https://go-review.googlesource.com/c/go/+/629555
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2024-11-20 23:21:51 +00:00
Damien Neil
a1b5394dba os: add Root.FS
For #67002

Change-Id: Ib687c92d645b9172677e5781a3e51ef1a0427c30
Reviewed-on: https://go-review.googlesource.com/c/go/+/629518
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2024-11-20 23:21:42 +00:00
Damien Neil
3d56891969 os: add Root.Stat and Root.Lstat
For #67002

Change-Id: I0903f45dbb4c44ea0280c340c96c5f3c3c0781be
Reviewed-on: https://go-review.googlesource.com/c/go/+/627475
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2024-11-20 23:21:29 +00:00
Damien Neil
49d24d469e os: add Root.Remove
For #67002

Change-Id: Ibbf44c0bf62f53695a7399ba0dae5b84d5efd374
Reviewed-on: https://go-review.googlesource.com/c/go/+/627076
Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2024-11-20 23:21:14 +00:00
Damien Neil
43d90c6a14 os: add Root
Add os.Root, a type which represents a directory and permits performing
file operations within that directory.

For #67002

Change-Id: I863f4f1bc320a89b1125ae4237761f3e9320a901
Reviewed-on: https://go-review.googlesource.com/c/go/+/612136
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2024-11-20 23:20:45 +00:00
Junyang Shao
558f5372fc cmd/compile,testing: implement one-time rampup logic for testing.B.Loop
testing.B.Loop now does its own loop scheduling without interaction with b.N.
b.N will be updated to the actual iterations b.Loop controls when b.Loop returns false.

This CL also added tests for fixed iteration count (benchtime=100x case).

This CL also ensured that b.Loop() is inlined.

For #61515

Change-Id: Ia15f4462f4830ef4ec51327520ff59910eb4bb58
Reviewed-on: https://go-review.googlesource.com/c/go/+/627755
Reviewed-by: Michael Pratt <mpratt@google.com>
Commit-Queue: Junyang Shao <shaojunyang@google.com>
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2024-11-20 23:19:48 +00:00
Russ Cox
60299c2513 cmd/go: revert "remove base.ShortPathConservative"
This reverts commit 2e07ff3543 (CL 630276).

Reason for revert: broke longtest builders.

Change-Id: I86b313cc6c1be061b408502e96a09916a6ac2c4e
Reviewed-on: https://go-review.googlesource.com/c/go/+/630317
Auto-Submit: Russ Cox <rsc@golang.org>
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2024-11-20 23:14:02 +00:00
Tobias Klauser
c94a9fdf65 os: use ignoringEINTR2 in (*Process).pidWait
This was missed in CL 627479.

Change-Id: Ibcd511573c330bf782fe6a8a50d56bb70aedf3c7
Reviewed-on: https://go-review.googlesource.com/c/go/+/629915
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
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2024-11-20 22:54:25 +00:00
Michael Pratt
dce30a1920 cmd/compile: intrinsify swissmap match calls with SIMD on amd64
Use similar SIMD operations to the ones used in Abseil. We still
using 8-slot groups (even though the XMM registers could handle 16-slot
groups) to keep the implementation simpler (no changes to the memory
layout of maps).

Still, the implementations of matchH2 and matchEmpty are shorter than
the portable version using standard arithmetic operations. They also
return a packed bitset, which avoids the need to shift in bitset.first.

That said, the packed bitset is a downside in cognitive complexity, as
we have to think about two different possible representations. This
doesn't leak out of the API, but we do need to intrinsify bitset to
switch to a compatible implementation.

The compiler's intrinsics don't support intrinsifying methods, so the
implementations move to free functions.

This makes operations between 0-3% faster on my machine. e.g.,

MapGetHit/impl=runtimeMap/t=Int64/len=6-12                      12.34n ±  1%   11.42n ± 1%   -7.46% (p=0.000 n=25)
MapGetHit/impl=runtimeMap/t=Int64/len=12-12                     15.14n ±  2%   14.88n ± 1%   -1.72% (p=0.009 n=25)
MapGetHit/impl=runtimeMap/t=Int64/len=18-12                     15.04n ±  6%   14.66n ± 2%   -2.53% (p=0.000 n=25)
MapGetHit/impl=runtimeMap/t=Int64/len=24-12                     15.80n ±  1%   15.48n ± 3%        ~ (p=0.444 n=25)
MapGetHit/impl=runtimeMap/t=Int64/len=30-12                     15.55n ±  4%   14.77n ± 3%   -5.02% (p=0.004 n=25)
MapGetHit/impl=runtimeMap/t=Int64/len=64-12                     15.26n ±  1%   15.05n ± 1%        ~ (p=0.055 n=25)
MapGetHit/impl=runtimeMap/t=Int64/len=128-12                    15.34n ±  1%   15.02n ± 2%   -2.09% (p=0.000 n=25)
MapGetHit/impl=runtimeMap/t=Int64/len=256-12                    15.42n ±  1%   15.15n ± 1%   -1.75% (p=0.001 n=25)
MapGetHit/impl=runtimeMap/t=Int64/len=512-12                    15.48n ±  1%   15.18n ± 1%   -1.94% (p=0.000 n=25)
MapGetHit/impl=runtimeMap/t=Int64/len=1024-12                   17.38n ±  1%   17.05n ± 1%   -1.90% (p=0.000 n=25)
MapGetHit/impl=runtimeMap/t=Int64/len=2048-12                   17.96n ±  0%   17.59n ± 1%   -2.06% (p=0.000 n=25)
MapGetHit/impl=runtimeMap/t=Int64/len=4096-12                   18.36n ±  1%   18.18n ± 1%   -0.98% (p=0.013 n=25)
MapGetHit/impl=runtimeMap/t=Int64/len=8192-12                   18.75n ±  0%   18.31n ± 1%   -2.35% (p=0.000 n=25)
MapGetHit/impl=runtimeMap/t=Int64/len=65536-12                  26.25n ±  0%   25.95n ± 1%   -1.14% (p=0.000 n=25)
MapGetHit/impl=runtimeMap/t=Int64/len=262144-12                 44.24n ±  1%   44.06n ± 1%        ~ (p=0.181 n=25)
MapGetHit/impl=runtimeMap/t=Int64/len=1048576-12                85.02n ±  0%   85.35n ± 0%   +0.39% (p=0.032 n=25)
MapGetHit/impl=runtimeMap/t=Int64/len=4194304-12                98.87n ±  1%   98.85n ± 1%        ~ (p=0.799 n=25)

For #54766.

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Change-Id: Ic1b852f02744404122cb3672900fd95f4625905e
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2024-11-20 22:41:14 +00:00
Ian Lance Taylor
b8ba5b440b cmd/cgo: improve error message for unknown name
Fixes #70472

Change-Id: Ib50d1dd5a648afc199ed62a507d54d0b0ccb1da2
Reviewed-on: https://go-review.googlesource.com/c/go/+/630375
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2024-11-20 22:16:58 +00:00
Robert Griesemer
ae9938fae2 doc: document new restriction on cgo-generated method receicer types
Follow-up on CL 629715.

For #60725.

Change-Id: I1b980ad44f73550b633c74fc881c70255e7d8565
Reviewed-on: https://go-review.googlesource.com/c/go/+/630335
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2024-11-20 21:44:47 +00:00
Michael Pratt
cf5ec0720f cmd/compile: remove types.Compare map bucket special cases
runtime.hmap never directly refers to the bucket type (it uses an
unsafe.Pointer), thus it shouldn't be possible to have infinite
recursion here.

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2024-11-20 21:41:14 +00:00
Russ Cox
a947912d8a internal/byteorder: use canonical Go casing in names
If Be and Le stand for big-endian and little-endian,
then they should be BE and LE.

Change-Id: I723e3962b8918da84791783d3c547638f1c9e8a9
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2024-11-20 20:59:28 +00:00
Michael Matloob
2e07ff3543 cmd/go: remove base.ShortPathConservative
This CL first removes the base.ShortPathConservative function. It had
two classes of uses. The first was in opening files where the paths end
up in error messages. In all those cases, the non-shortened paths are
used to open the files, and ShortPath is only used for the error
messages. The second is in base.RelPaths. RelPaths will now call
ShortPath for each of the paths passed in instead of calling
RelConservative and then doing the same check as ShortPath to see if the
path is shorter.

To avoid the possibility of incorrect relative paths ending up in error
messages (that might have command lines suggested for users to run), and
to avoid the possibility of incorrect relative paths appearing in the
output of base.RelPaths, base.ShortPaths always does an os.SameFile
check to make sure that the relative path its providing is actually
correct. Since this makes ShortPath slower than just manipulating paths
(because we need to stat the files), we need to be continue to enforce
that ShortPath is only called for error messages (with the exception of
base.RelPaths and its callers).

This is a simpler way of solving the problem that base.ShortPaths
intended to solve.

For #68383

Change-Id: I474f464f51a9acb2250069dea3054b55d95a4ab4
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2024-11-20 20:58:09 +00:00
Russ Cox
5242bfa26a cmd/go: remove temporary crypto/internal/fips140 import relaxation
Now that crypto/internal/fips140deps has been checked in,
we can enforce the full restrictions in the go command:
crypto/internal/fips can only import crypto/internal, not internal/...

Change-Id: I035470dbd478a5997c37ffabd268117969ed00a5
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2024-11-20 20:56:02 +00:00
Russ Cox
4a3cef2036 all: rename crypto/internal/fips to crypto/internal/fips140
Sometimes we've used the 140 suffix (GOFIPS140, crypto/fips140)
and sometimes not (crypto/internal/fips, cmd/go/internal/fips).
Use it always, to avoid having to remember which is which.

Also, there are other FIPS standards, like AES (FIPS 197), SHA-2 (FIPS 180),
and so on, which have nothing to do with FIPS 140. Best to be clear.

For #70123.

Change-Id: I33b29dabd9e8b2703d2af25e428f88bc81c7c307
Reviewed-on: https://go-review.googlesource.com/c/go/+/630115
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2024-11-20 20:28:34 +00:00
qmuntal
5254e98942 cmd/cgo/internal/testsanitizers: fix TSAN tests using setarch
Some systems don't have permissions to run setarch, for example
when running in a docker container without the --privileged flag.

This change makes the tests skip the setarch command if it fails.

Fixes #70463

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Change-Id: I02fbd423ba809f5229b8639c9abe6fd275f32558
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2024-11-20 20:11:21 +00:00
Robert Griesemer
2ad53d5a19 go/types, types2: disallow new methods on (aliases to) cgo-generated types
This makes methods on aliases of cgo-generated types a new compiler error.
That is ok because cgo-behavior is not covered by the G1 compatibility
guarantee.

Background: In 2023 we fixed a gopls issue related to this by actually
enabling methods on cgo-generated types in the first place (#59944).
See the discussion in #60725 and this CL for why we believe it is ok
to make this an error now.

Based on a variation of CL 503596 (by Xie Cui).

Fixes #60725.
For #59944.

Change-Id: I7e9e6e1a76447167483a282b268f5183214027c9
Reviewed-on: https://go-review.googlesource.com/c/go/+/629715
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2024-11-20 20:05:29 +00:00
Robert Griesemer
91af7119cd go/types, types2: disallow new methods on generic alias and instantiated types
If the receiver is an alias declaring type parameters, report
an error and ensure that the receiver type remains invalid.
Collect type parameters etc. as before but do not attempt to
find their constraints or instantiate the receiver type.
The constraints of the type parameters will be invalid by
default. The receiver type will not be (lazily) instantiated
which causes problems with existing invariants.

If a receiver denotes an instantiated (alias or defined) type,
report an error and ensure that the receiver type remains invalid.

While at it, add more comments and bring go/types and types2
closer together where there were differences.

Fixes #70417.

Change-Id: I87ef0b42d2f70464664cacc410f4b7eb1c994241
Reviewed-on: https://go-review.googlesource.com/c/go/+/629080
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2024-11-20 20:03:55 +00:00
Michael Anthony Knyszek
d69e6f63c3 runtime: keep cleanup closure alive across adding the cleanup special
This is similar to the weak handle bug in #70455. In short, there's a
window where a heap-allocated value is only visible through a special
that has not been made visible to the GC yet.

For #70455.

Change-Id: Ic2bb2c60d422a5bc5dab8d971cfc26ff6d7622bc
Reviewed-on: https://go-review.googlesource.com/c/go/+/630277
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2024-11-20 19:50:09 +00:00
Michael Anthony Knyszek
88cfad0c89 runtime: explicitly keep handle alive during getOrAddWeakHandle
getOrAddWeakHandle is very careful about keeping its input alive across
the operation, but not very careful about keeping the heap-allocated
handle it creates alive. In fact, there's a window in this function
where it is *only* visible via the special. Specifically, the window of
time between when the handle is stored in the special and when the
special actually becomes visible to the GC.

(If we fail to add the special because it already exists, that case is
fine. We don't even use the same handle value, but the one we obtain
from the attached GC-visible special, *and* we return that value, so it
remains live.)

Fixes #70455.

Change-Id: Iadaff0cfb93bcaf61ba2b05be7fa0519c481de82
Reviewed-on: https://go-review.googlesource.com/c/go/+/630315
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2024-11-20 19:46:18 +00:00
Robert Griesemer
e0b569842d spec: document restrictions for method receivers that are aliases
For #70417.

Change-Id: I5e6b3011f356c7ecd8f64f5dcf0a6a77dcb21bbf
Reviewed-on: https://go-review.googlesource.com/c/go/+/629577
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2024-11-20 19:43:54 +00:00
Roland Shoemaker
e36b4d76ad doc/godebug: document we removed x509sha1
Change-Id: I4a4ff0b9e0d3584b96e414d60b889d68fa8660c0
Reviewed-on: https://go-review.googlesource.com/c/go/+/630236
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2024-11-20 19:29:11 +00:00
Filippo Valsorda
dc28aca568 crypto/ed25519: fix GenerateKey with rand nil
GenerateKey(nil) is documented to use crypto/rand.Reader, but we didn't
have a test.

While at it, since it's documented to be equivalent to NewKeyFromSeed,
actually implement it that way. This has the probably good side effect
of making it deterministic in FIPS mode. The other GenerateKey use
MaybeReadByte, so can change, but this one is probably worth keeping
deterministic. It's just slightly less compliant, but ok as long as
crypto/rand.Reader is the default one.

Intentionally leaving crypto/internal/fips/ed25519.GenerateKey in, in
case we need to switch to it during the life of the module.

Change-Id: Ic203436ff452bb9740291b9ca17f85aa6ae20b6e
Reviewed-on: https://go-review.googlesource.com/c/go/+/630099
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2024-11-20 19:04:33 +00:00
Brian Gabin
e1dc707f33 cmd/go/testdata/script: restrict test to check only exe name
Avoid test failures caused by 'v2' in user environment paths.
Modify the test to check only the output executable name and ensure it is not 'v2', rather than inspecting the entire path.

Fixes #67989

Change-Id: Ida2131f6c9b41724df1b6b5e31413252c5009d25
Reviewed-on: https://go-review.googlesource.com/c/go/+/621315
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2024-11-20 18:45:12 +00:00
Roland Shoemaker
7c7170e939 crypto/x509: remove x509sha1 GODEBUG
Fixes #41682

Change-Id: I37760f2186e75ec7df9674db25ae466cf453d66d
Reviewed-on: https://go-review.googlesource.com/c/go/+/629676
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2024-11-20 18:27:31 +00:00
Roland Shoemaker
c901d93fcd cmd/go: enforce -Wl,--push-state logic only when it is a prefix
Make sure we only run the --push-state logic when -Wl,--push-state is a
prefix of the argument, not just present in the argument string.

Thanks to Juho Forsén of Mattermost for reporting this issue.

Change-Id: I799f7854ff680674fd84cf2136fadf70817fc7e2
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2024-11-20 18:26:43 +00:00
Russ Cox
30b09bccfd crypto/internal/fipstest: fix TestACVP not to write to module cache
Not sure how this ever worked; the module cache is read-only.

Change-Id: I22e4945fa0bac101995ab9101d22dcfdcee40776
Reviewed-on: https://go-review.googlesource.com/c/go/+/629976
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2024-11-20 18:12:28 +00:00
Conrad Irwin
5165f54167 cmd/go: add support for mod tools
Running `go tool` with no arguments will now list built in tools
followed by module defined tools.

Running `go tool X` where X matches either the full package path,
or the last segment of the package path, of a defined tool will
build the tool to a known location and immediately execute it.

For golang/go#48429

Change-Id: I02249df8dad12fb74aa244002f82a81af20e732f
Reviewed-on: https://go-review.googlesource.com/c/go/+/534817
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2024-11-20 17:58:35 +00:00
Filippo Valsorda
297081eb02 crypto/internal/fips/rsa: support all SHA hashes in PKCS#1 v1.5
The byte sequences match those in
https://github.com/randombit/botan/blob/e5ec40828/src/lib/pk_pad/hash_id/hash_id.cpp

For #69536
Fixes #43923

Change-Id: I8b4daea71c2f696ad67ddc13affefd1563c51266
Reviewed-on: https://go-review.googlesource.com/c/go/+/630095
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2024-11-20 17:52:09 +00:00
Filippo Valsorda
c483fdbfcf crypto/ed25519: fix TestAllocations in FIPS mode
Change-Id: Ic36e95dba29d43e73ddf105d538c4795bc4ce557
Reviewed-on: https://go-review.googlesource.com/c/go/+/630097
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2024-11-20 16:57:48 +00:00
Filippo Valsorda
93fcd8fb18 crypto/rsa: move implementation to crypto/internal/fips/rsa
Key generation is still missing and will come in a follow-up CL.

For #69536

Change-Id: Ia17754fe31a39a48710673b51e30ca3125b19a20
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2024-11-20 16:57:14 +00:00
Filippo Valsorda
8837503237 crypto/rsa: move RSAES-OAEP to the same file as RSASSA-PSS
They are both from PKCS#1 v2.2, so it makes sense to keep them in the
same file, and to only have common RSA stuff in rsa.go.

This should make it easier to follow the changes in the following CLs.

Change-Id: I1982e679f54eefa9babb5eeea34fa23792cf340a
Reviewed-on: https://go-review.googlesource.com/c/go/+/629936
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2024-11-20 16:48:09 +00:00
Damien Neil
2c02b4a252 runtime: remove unused casgcopystack function
Change-Id: I349b24ba5259d7abb0ae37065f704517aa4decda
Reviewed-on: https://go-review.googlesource.com/c/go/+/630155
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2024-11-20 16:47:29 +00:00
Damien Neil
1d28fa8c43 runtime: avoid deadlock in synctest changegstatus when copying stacks
For #67434
Fixes #70452

Change-Id: Ie655a9e55837aa68b6bfb0bb69b6c8caaf3bbea5
Reviewed-on: https://go-review.googlesource.com/c/go/+/629856
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LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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Reviewed-by: Michael Pratt <mpratt@google.com>
2024-11-20 16:45:48 +00:00
Joel Sing
b483f382a2 crypto/subtle: unbreak DIT test on openbsd/arm64
OpenBSD already enables DIT on arm64 in both kernel and userland.
As such, if DIT is already enabled, do not expect that it can be
disabled.

Change-Id: If7aae2ace40d97109beefa71c03e0c138a0995ce
Reviewed-on: https://go-review.googlesource.com/c/go/+/629995
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Run-TryBot: Joel Sing <joel@sing.id.au>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2024-11-20 16:31:41 +00:00