Commit Graph

60236 Commits (master)

Author SHA1 Message Date
Michael Anthony Knyszek 1110c4095e internal/trace: fix up debug commands
They were still referencing the old internal/trace/v2 packages, and
gotraceeventstats had an extra layer of cmd directory (not sure why,
maybe it was always like that).

Change-Id: Ieba48074ff36ea86c467168568751177d80db31d
Reviewed-on: https://go-review.googlesource.com/c/go/+/586998
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
2024-05-22 20:31:29 +00:00
Michael Anthony Knyszek efe7a1f5d3 runtime: write out a batch with alignment info for traceallocfree
Currently the traceallocfree experiment is missing info in the trace for
interpeting the produced events. Most notably, the base heap address is
missing. While not technically necessary, it is useful for getting an
accurate picture of the program's memory layout, and will be useful for
future trace experiments. Since we want to emit a batch for this, we
should also emit a batch for all the alignment info that's used to
compress the addresses (IDs) produced for the alloc/free events.

This CL distinguishes the different formats of the experimental batches
(note that there's already batches containing type information in this
experiment) by putting a byte at the beginning of each experimental
batch indicating its format.

Change-Id: Ifc4e77a23458713b7d95e0dfa056a29e1629ccd7
Reviewed-on: https://go-review.googlesource.com/c/go/+/586997
Auto-Submit: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
2024-05-22 20:31:27 +00:00
Sam Thanawalla fb5d0cdd49 cmd/go: add go mod tidy -diff
The -diff flag causes tidy not to modify the files but instead print the
necessary changes as a unified diff. It exits with a non-zero code
if updates are needed.

Fixes: #27005

Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Change-Id: Ie239367f2fc73ecb55ec2ce76442293635c1b47d
Reviewed-on: https://go-review.googlesource.com/c/go/+/585401
Reviewed-by: Michael Matloob <matloob@golang.org>
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2024-05-22 20:17:49 +00:00
Russ Cox ef225d1c57 all: document legacy //go:linkname for modules with ≥100,000 dependents
For #67401.

Change-Id: I51f5b561ee11eb242e3b1585d591281d0df4fc24
Reviewed-on: https://go-review.googlesource.com/c/go/+/587215
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-05-22 20:12:46 +00:00
Paul E. Murphy dca577d882 cmd/compile/internal/ssa: reintroduce ANDconst opcode on PPC64
This allows more effective conversion of rotate and mask opcodes
into their CC equivalents, while simplifying the first lowering
pass.

This was removed before the latelower pass was introduced to fold
more cases of compare against zero. Add ANDconst to push the
conversion of ANDconst to ANDCCconst into latelower with the other
CC opcodes.

This also requires introducing RLDICLCC to prevent regressions
when ANDconst is converted to RLDICL then to RLDICLCC and back
to ANDCCconst when possible.

Change-Id: I9e5f9c99fbefa334db18c6c152c5f967f3ff2590
Reviewed-on: https://go-review.googlesource.com/c/go/+/586160
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
2024-05-22 19:59:38 +00:00
Robert Griesemer 6861b2eff5 go/types, types2: better error message for invalid ERROR pattern in tests
When unquoting of an ERROR or ERRORx pattern fails, say so instead of
simply printing "syntax error".

Change-Id: I586dffa86ca80f5b40a5cbe16a7005cc1f7862f8
Reviewed-on: https://go-review.googlesource.com/c/go/+/586958
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Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
2024-05-22 19:45:33 +00:00
Robert Griesemer 8d464e4ae3 go/types, types2: operand.AssignableTo must consider Alias types
Fixes regression from Go 1.22.

For #67547.

Change-Id: Id0d07d6b24e1eab6ed1c7476d9d9b82d28aee80a
Reviewed-on: https://go-review.googlesource.com/c/go/+/587161
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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2024-05-22 19:44:53 +00:00
Cherry Mui 44079f39eb cmd/compile: keep closure pointer live for range body closures
For range-over-function, the compiler generates a hidden closure
for the range body, and call the iterator function with the hidden
closure as the yield parameter. For debuggers, if it stops inside
the range body (hidden closure), it needs some way to find the
outer function (that contains the range statement), to access the
variables that are in scope. To do this, we keep the closure
pointer live on stack with a special name ".closureptr", so the
debugger can look for this name and find the closure pointer. In
the usual case, the closure is a struct defined in the outer
frame, so following the pointer it will find the frame. We do this
in SSA generation, so if the range func is inlined and there is no
actual closure, we don't generate any extra code. In the case that
there is an actual closure, it's just a single store to the stack,
so the overhead is still small.

TODO: add some test

Change-Id: I0e8219b895733f8943a13c67b03ca776bdc02bc9
Reviewed-on: https://go-review.googlesource.com/c/go/+/586975
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Reviewed-by: David Chase <drchase@google.com>
2024-05-22 19:31:22 +00:00
Michael Anthony Knyszek 197101a84a runtime: correctly account for allocated objects in allocfree trace
The current implementation doesn't handle s.freeindex at all, which
means it'll skip a whole bunch of recently-made allocations, because the
span may have not been swept yet.

Change-Id: I8c5e360f5927ffe7e9abb448b352a59875e31b02
Reviewed-on: https://go-review.googlesource.com/c/go/+/586996
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Auto-Submit: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
2024-05-22 19:18:09 +00:00
Robert Griesemer 5ab8f90745 go/types, types2: operand.convertibleTo must consider Alias types
Fixes regression from Go 1.22.

Fixes #67540.
For #67547.

Change-Id: I61f642970c6a9bd8567654bb5ecf645ae77b3bcc
Reviewed-on: https://go-review.googlesource.com/c/go/+/587159
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Auto-Submit: Robert Griesemer <gri@google.com>
2024-05-22 18:51:00 +00:00
islishude 2bf686dfe9 net/http: add partitioned attribute to cookie type
Fixes #62490

Change-Id: Ibe7df96f50275c9321462e994a962031cb1f3018
GitHub-Last-Rev: 7df8738b804c3d82460eec1fc4acd7c6ad733fe1
GitHub-Pull-Request: golang/go#62499
Reviewed-on: https://go-review.googlesource.com/c/go/+/526435
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Théo Dury <tdury2@gmail.com>
2024-05-22 18:33:05 +00:00
Dmitri Shuralyov 614f2284d9 doc/initial, doc/next: add draft notice to introduction
Go release notes always start out as a draft with a clear notice.
That notice is removed when the final release (go1.N.0) is made.
For example, the last time was in CL 562255.

Add this to the Go 1.23 draft and to the future fragment template.

Also switch to the main pkg.go.dev instance and use a relative issue
link in 3-tools.md while here.

For #64169.
For #65614.

Change-Id: I16bc0fa8a3a43ee7a9edd7fa253999041f1892e2
Reviewed-on: https://go-review.googlesource.com/c/go/+/587415
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
2024-05-22 18:25:26 +00:00
Paul E. Murphy cc673d2ec5 all: convert PPC64 CMPx ...,R0,... to CMPx Rx,$0
Cleanup all remaining trivial compares against $0 in ppc64x assembly.

In math, SRD ...,Rx; CMP Rx, $0 is further simplified to SRDCC.

Change-Id: Ia2bc204953e32f08ee142bfd06a91965f30f99b6
Reviewed-on: https://go-review.googlesource.com/c/go/+/587016
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
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2024-05-22 18:17:17 +00:00
Rhys Hiltner 41884dcd05 runtime/pprof: ignore runtime-internal samples in test
Tests of the mutex profile focus on sync.Mutex, which is easy to
control. But since those tests still use the runtime, and contention on
internal runtime.mutex values is now also part of the mutex profile, we
have to filter out those samples before examining the profile. Otherwise
the test may be confused by stray contention on sched.lock (or other
runtime-internal locks) as a natural consequence of using goroutines.

Fixes #67563

Change-Id: I066a24674d8b719dbeca4a5c0f76b53bc07498c1
Reviewed-on: https://go-review.googlesource.com/c/go/+/586957
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Auto-Submit: Rhys Hiltner <rhys.hiltner@gmail.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
2024-05-22 18:14:50 +00:00
Kioni 3989bc8a80 cmd/go: add -cover flag to report by go version -m
Fixes #67366

Change-Id: Ie39a8ebe7fe2faf59a5f723c69d6d5c8e1a9cd8b
GitHub-Last-Rev: 021134582d8c20b5799514f34b27d8b603a52fef
GitHub-Pull-Request: golang/go#67572
Reviewed-on: https://go-review.googlesource.com/c/go/+/587375
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Reviewed-by: Michael Matloob <matloob@golang.org>
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2024-05-22 18:12:04 +00:00
Roland Shoemaker 0ec709f180 html: update jstmpllitinterp doc
We no longer do anything with this GODEBUG.

Fixes #66217

Change-Id: I998797b6a573013f5b9c8ded835acae572327d18
Reviewed-on: https://go-review.googlesource.com/c/go/+/584117
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Roland Shoemaker <roland@golang.org>
2024-05-22 18:04:29 +00:00
Filippo Valsorda aeb2c2a896 crypto/tls: remove typeNextProtocol
Was this strictly necessary? No.
Did this deserve its own CL? Maybe not.
But I have a personal vendetta against NPN.

Change-Id: Ide1ad1092259dc23e3ead5c1d5269fc5cb2793d7
Reviewed-on: https://go-review.googlesource.com/c/go/+/587275
Reviewed-by: Roland Shoemaker <roland@golang.org>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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2024-05-22 18:00:17 +00:00
Jes Cok 6f08665079 encoding/binary: adjust docs for Append, Encode and Decode
Updates #60023

Change-Id: Ida1cc6c4f5537402e11db6b8c411828f2bcc0a5e
Reviewed-on: https://go-review.googlesource.com/c/go/+/587096
Reviewed-by: Austin Clements <austin@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
2024-05-22 17:29:31 +00:00
Damien Neil cbd8f16adc crypto/tls: improved 0-RTT QUIC API
Add synchronous management of stored sessions to QUICConn.

This adds QUICStoreSession and QUICResumeSession events,
permitting a QUIC implementation to handle session resumption
as part of its regular event loop processing.

Fixes #63691

Change-Id: I9fe16207cc1986eac084869675bc36e227cbf3f0
Reviewed-on: https://go-review.googlesource.com/c/go/+/536935
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Reviewed-by: Marten Seemann <martenseemann@gmail.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
2024-05-22 17:23:54 +00:00
Roland Shoemaker 8524931a2c crypto/x509: reject serial numbers longer than 20 octets
Updates #65085

Change-Id: I8e5fb6c77c54f07247b30afea9fe8c548bf6d0be
Reviewed-on: https://go-review.googlesource.com/c/go/+/562975
Reviewed-by: Damien Neil <dneil@google.com>
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Auto-Submit: Roland Shoemaker <roland@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2024-05-22 17:23:31 +00:00
Roland Shoemaker db13584bae crypto/x509: reject negative serial numbers
There is only one trusted certificate I could find in the web pki which
has a negative serial number. Removing this exception seems reasonable.

Updates #65085

Change-Id: I55435b3d75479dcb41d523383e4ff7894a1496ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/562343
Auto-Submit: Roland Shoemaker <roland@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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Reviewed-by: Damien Neil <dneil@google.com>
2024-05-22 17:23:27 +00:00
Jes Cok 5f6a85637c doc: correct issue number for release note
Also simplify links.

Change-Id: I412d6c914d05bd093df46926a4f1742d664fefea
Reviewed-on: https://go-review.googlesource.com/c/go/+/587355
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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Reviewed-by: Jonathan Amsterdam <jba@google.com>
2024-05-22 16:06:02 +00:00
Michael Anthony Knyszek 3a3837f422 internal/concurrent: make HashTrieMap iteration more idiomatic
Currently a HashTrieMap has a method called Enumerate whose method
closure is an iter.Seq2, but the current convention is to name the
method All and return an iter.Seq2. This is an easy transformation, so
do it now.

Change-Id: I323e505008b7df3a9e20fe8c223b281a8c290006
Reviewed-on: https://go-review.googlesource.com/c/go/+/586995
Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-05-22 16:01:55 +00:00
Filippo Valsorda d0edd9acc8 crypto/tls: implement X25519Kyber768Draft00
Forced the testConfig CurvePreferences to exclude X25519Kyber768Draft00
to avoid bloating the transcripts, but I manually tested it and the
tests all update and pass successfully, causing 7436 insertions(+), 3251
deletions(-).

Fixes #67061

Change-Id: If6f13bca561835777ab0889a490487b7c2366c3c
Reviewed-on: https://go-review.googlesource.com/c/go/+/586656
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
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2024-05-22 14:56:25 +00:00
Cherry Mui 7c52c064df cmd/compile: update 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-amd64_c3h88-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    120.7m ± 0%   118.1m ± 0%  -2.17% (p=0.000 n=20)   116.5m ± 0%  -3.46% (p=0.000 n=20)
Unicode    104.59m ± 0%   99.05m ± 0%  -5.29% (p=0.000 n=20)   99.30m ± 1%  -5.06% (p=0.000 n=20)
GoTypes     676.8m ± 0%   662.3m ± 0%  -2.15% (p=0.000 n=20)   650.8m ± 0%  -3.85% (p=0.000 n=20)
Compiler    96.29m ± 1%   91.85m ± 1%  -4.61% (p=0.000 n=20)   90.44m ± 1%  -6.08% (p=0.000 n=20)
SSA          5.185 ± 0%    5.038 ± 0%  -2.83% (p=0.000 n=20)    4.945 ± 0%  -4.64% (p=0.000 n=20)
Flate       69.00m ± 0%   67.39m ± 0%  -2.33% (p=0.000 n=20)   66.60m ± 0%  -3.48% (p=0.000 n=20)
GoParser    143.3m ± 0%   140.6m ± 1%  -1.89% (p=0.000 n=20)   138.3m ± 1%  -3.46% (p=0.000 n=20)
Reflect     310.0m ± 1%   305.1m ± 0%  -1.56% (p=0.000 n=20)   298.2m ± 1%  -3.79% (p=0.000 n=20)
Tar         109.5m ± 0%   107.5m ± 1%  -1.79% (p=0.000 n=20)   106.0m ± 0%  -3.18% (p=0.000 n=20)
XML         147.6m ± 1%   144.2m ± 0%  -2.31% (p=0.000 n=20)   142.0m ± 0%  -3.83% (p=0.000 n=20)
geomean     215.0m        209.2m       -2.70%                  206.2m       -4.09%

For #60234.

Change-Id: Iee853146f120ce310c81aabfccf6e5665e6d8b65
Reviewed-on: https://go-review.googlesource.com/c/go/+/587195
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
2024-05-22 14:41:01 +00:00
Rhys Hiltner 8ab131fb12 runtime: split mutex profile clocks
Mutex contention measurements work with two clocks: nanotime for use in
runtime/metrics, and cputicks for the runtime/pprof profile. They're
subject to different sampling rates: the runtime/metrics view is always
enabled, but the profile is adjustable and is turned off by default.
They have different levels of overhead: it can take as little as one
instruction to read cputicks while nanotime calls are more elaborate
(although some platforms implement cputicks as a nanotime call). The use
of the timestamps is also different: the profile's view needs to attach
the delay in some Ms' lock2 calls to another M's unlock2 call stack, but
the metric's view is only an int64.

Treat them differently. Don't bother threading the nanotime clock
through to the unlock2 call, measure and report it directly within
lock2. Sample nanotime at a constant gTrackingPeriod.

Don't consult any clocks unless the mutex is actually contended.

Continue liberal use of cputicks for now.

For #66999

Change-Id: I1c2085ea0e695bfa90c30fadedc99ced9eb1f69e
Reviewed-on: https://go-review.googlesource.com/c/go/+/586796
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Reviewed-by: Carlos Amedee <carlos@golang.org>
2024-05-22 14:34:20 +00:00
Filippo Valsorda 1d3d7d395e crypto/tls: ensure GODEBUGs are initialized
IncNonDefault panics if Value was not called. That's too much DoS risk
in crypto/tls, when the call to Value is distant from the call to
IncNonDefault (see #65991). Value is cheap, though, so we can just call
it before each isolated IncNonDefault.

Change-Id: I6dbed345381e60e029b0a5ef2232e846aa089736
Reviewed-on: https://go-review.googlesource.com/c/go/+/586755
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
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2024-05-22 14:20:03 +00:00
Filippo Valsorda 3128ebfad7 crypto/tls: clarify group selection logic
I initially thought the logic was broken, but writing the test I
realized it was actually very clever (derogative). It was relying on the
outer loop continuing after a supported match without a key share,
allowing a later key share to override it (but not a later supported
match because of the "if selectedGroup != 0 { continue }").

Replaced the clever loop with two hopefully more understandable loops,
and added a test (which was already passing).

We were however not checking that the selected group is in the supported
list if we found it in key shares first. (This was only a MAY.) Fixed.

Fixes #65686

Change-Id: I09ea44f90167ffa36809deb78255ed039a217b6d
Reviewed-on: https://go-review.googlesource.com/c/go/+/586655
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Auto-Submit: Filippo Valsorda <filippo@golang.org>
2024-05-22 14:19:11 +00:00
aimuz 33496c2dd3 maps: clarify iteration order and insertion behavior
Fixes #67537.

Change-Id: Ic567f7d19d621a17d2a00aba5b9f927001195ea9
GitHub-Last-Rev: 9eec790ab6f1697f6328220e007fee8661f62c5c
GitHub-Pull-Request: golang/go#67539
Reviewed-on: https://go-review.googlesource.com/c/go/+/587015
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
2024-05-22 13:41:45 +00:00
Tobias Klauser 16ab55f07f internal/cpu: remove unused const cpuid_SSE2
It's unused since CL 344350.

Change-Id: I1aacb9d3db6798aa7013a58603112894e2281002
Reviewed-on: https://go-review.googlesource.com/c/go/+/587035
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-05-22 13:40:20 +00:00
Jes Cok bb2b73635f reflect: add line breaks for long sentences
Change-Id: Id63ede5d50a8b287bc0b96382f9f3ee6c2e0b834
Reviewed-on: https://go-review.googlesource.com/c/go/+/586856
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-05-22 13:40:11 +00:00
Russ Cox cd41d71785 internal/coverage/cfile: remove //go:linkname into testing
This is just looking at a command-line flag. Look directly.

For #67401.

Change-Id: I7a1c3fc2d9cc85e5ffc5731444bf6db87abf6901
Reviewed-on: https://go-review.googlesource.com/c/go/+/585916
Reviewed-by: Than McIntosh <thanm@google.com>
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Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-05-22 09:58:07 +00:00
Russ Cox df4e49366c internal/coverage/cfile: remove more //go:linkname usage
Move code so that basic imports work instead
of //go:linkname for metadata lists.

For #67401.

Change-Id: Id02075570befc45a9426559aad2137ab540928b2
Reviewed-on: https://go-review.googlesource.com/c/go/+/585915
Reviewed-by: Than McIntosh <thanm@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-05-22 09:57:47 +00:00
Filippo Valsorda c96159c252 crypto/x509: cleanup signature generation
Centralizing some repetitive code, which would have prevented #45990.

This also fixes the deprecated Certificate.CreateCRL for RSA-PSS, not
that anyone cared, probably.

This has two other minor observable behavior changes: MD2 is now treated
as a completely unknown algorithm (why did we even have that!? removing
lets us treat hash == 0 as always meaning no prehash); and we now do the
signature verification self-check for all signing operations.

Change-Id: I3b34fe0c3b6eb6181d2145b0704834225cd45a27
Reviewed-on: https://go-review.googlesource.com/c/go/+/586015
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-05-22 09:20:15 +00:00
Brad Fitzpatrick bf0bbd5360 math/rand/v2: drop pointer receiver on zero-width type
Just a cleanup.

Change-Id: Ibeb2c7d447c793086280e612fe5f0f7eeb863f71
Reviewed-on: https://go-review.googlesource.com/c/go/+/582875
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Jorropo <jorropo.pgm@gmail.com>
2024-05-22 02:25:49 +00:00
Guoqi Chen 504212bbd7 cmd/internal/obj/loong64: add atomic memory access instructions support
The AM* atomic access instruction performs a sequence of “read-modify-write”
operations on a memory cell atomically. Specifically, it retrieves the old
value at the specified address in memory and writes it to the general register
rd, performs some simple operations on the old value in memory and the value
in the general register rk, and then write the result of the operation back
to the memory address pointed to by general register rj.

Go asm syntax:
	AM{SWAP/ADD/AND/OR/XOR/MAX/MIN}[DB]{W/V} RK, (RJ), RD
	AM{MAX/MIN}[DB]{WU/VU} RK, (RJ), RD

Equivalent platform assembler syntax:
	am{swap/add/and/or/xor/max/min}[_db].{w/d} rd, rk, rj
	am{max/min}[_db].{wu/du} rd, rk, rj

Ref: https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html

Change-Id: I99ea4553ae731675180d63691c19ef334e7e7817
Reviewed-on: https://go-review.googlesource.com/c/go/+/481577
Reviewed-by: Meidan Li <limeidan@loongson.cn>
Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
Reviewed-by: WANG Xuerui <git@xen0n.name>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-05-22 02:04:54 +00:00
Robert Griesemer ca17bda856 go/types, types2: underIs must consider Alias types
Fixes regression from Go 1.22.

For #67547.

Change-Id: I012681c7b8b01b02018b313dd3804690bc7aeed1
Reviewed-on: https://go-review.googlesource.com/c/go/+/587158
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
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2024-05-21 22:39:35 +00:00
Robert Griesemer 4b778470f8 go/types, types2: coreType/String must consider Alias types
Fixes regression from Go 1.22.

For #67547.

Change-Id: Idd319b9d2a73c824caa2c821df0e2fcd4f58cb08
Reviewed-on: https://go-review.googlesource.com/c/go/+/587176
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-05-21 22:34:27 +00:00
Robert Griesemer 814e72f2ef go/types, types2: don't panic converting a constant to aliased type parameter
For #67547.

Change-Id: I1b2118a311dce906327ae6e29e582da539c60b2b
Reviewed-on: https://go-review.googlesource.com/c/go/+/587157
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
2024-05-21 22:09:36 +00:00
Robert Griesemer 816b6031fe go/types, types2: add missing Unalias calls (clarification)
This change adds an Unalias call in applyTypeFunc and arrayPtrDeref.
At the moment this doesn't change anything or fix any bugs because
of the way these two functions are invoked, but that could change
in the future.

Also, manually reviewed all type assertions to Type types.

Excluding assertions to type parameters, no obvious issues
were found except for #67540 for which a separate fix is pending.

There are potential issues with assertions type parameters
which will be addressed in a follow-up CL.

For #67547.

Change-Id: I312268dc5e104f95b68f115f00aec3ec4c82e41f
Reviewed-on: https://go-review.googlesource.com/c/go/+/587156
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
2024-05-21 22:01:56 +00:00
Damien Neil 7164fad87a net/http: disable flaky 100-continue tests
Disable three 100-continue tests that aren't exercising the
intended behavior because they don't set ExpectContinueTimeout.
The tests are flaky right now; setting ExpectContinueTimeout
makes them consistently fail.

Set ExpectContinueTimeout and t.Skip the tests for now.

Fixes #67382
For #67555

Change-Id: I459a19a927e14af03881e89c73d20c93cf0da43e
Reviewed-on: https://go-review.googlesource.com/c/go/+/587155
Auto-Submit: Damien Neil <dneil@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2024-05-21 21:40:59 +00:00
David Chase 5a9dabc2ba cmd/compile: for rangefunc, add checks and tests, fix panic interactions
Modify rangefunc #next protocol to make it more robust

Extra-terrible nests of rangefunc iterators caused the
prior implementation to misbehave non-locally (in outer loops).

Add more rangefunc exit flag tests, parallel and tricky

This tests the assertion that a rangefunc iterator running
in parallel can trigger the race detector if any of the
parallel goroutines attempts an early exit.  It also
verifies that if everything else is carefully written,
that it does NOT trigger the race detector if all the
parts run time completion.

Another test tries to rerun a yield function within a loop,
so that any per-line shared checking would be fooled.

Added all the use-of-body/yield-function checking.

These checks handle pathological cases that would cause
rangefunc for loops to behave in surprising ways (compared
to "regular" for loops).  For example, a rangefunc iterator
might defer-recover a panic thrown in the syntactic body
of a loop; this notices the fault and panics with an
explanation

Modified closure naming to ID rangefunc bodies

Add a "-range<N>" suffix to the name of any closure generated for
a rangefunc loop body, as provided in Alessandro Arzilli's CL
(which is merged into this one).

Fix return values for panicky range functions

This removes the delayed implementation of "return x" by
ensuring that return values (in rangefunc-return-containing
functions) always have names and translating the "return x"
into "#rv1 = x" where #rv1 is the synthesized name of the
first result.

Updates #61405.

Change-Id: I933299ecce04ceabcf1c0c2de8e610b2ecd1cfd8
Reviewed-on: https://go-review.googlesource.com/c/go/+/584596
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Tim King <taking@google.com>
2024-05-21 21:08:03 +00:00
Andrey Bokhanko 643865856c cmd/compile: Fix SSA building bug for CAS atomics on ARM64
Fixes #67229

Change-Id: I39f1255d38d2b2083753e17f0f5acf520e6167d5
Reviewed-on: https://go-review.googlesource.com/c/go/+/583995
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Shu-Chun Weng <scw@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-05-21 20:52:26 +00:00
Nayef Ghattas 1a349fc92b unsafe: document the behavior of Sizeof on an interface
unsafe.Sizeof() can return a different value than
reflect.TypeOf(x).Size() for a variable of an interface static type.
This change points out the difference in behavior, by emphasizing that
unsafe.Sizeof() only returns the size of the interface value itself,
rather than the size of the value stored in the interface.

Fixes #67465.

Change-Id: Ia6a809debb7970be171b0fc186209e5d161784e7
Reviewed-on: https://go-review.googlesource.com/c/go/+/586275
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Felix Geisendörfer <felix.geisendoerfer@datadoghq.com>
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Commit-Queue: Ian Lance Taylor <iant@golang.org>
2024-05-21 19:45:20 +00:00
Russ Cox 180ea45566 runtime/coverage: remove uses of //go:linkname
Move code to internal/coverage/cfile, making it possible to
access directly from testing/internal/testdeps, so that we can
avoid needing //go:linkname hacks.

For #67401.

Change-Id: I10b23a9970164afd2165e718ef3b2d9e86783883
Reviewed-on: https://go-review.googlesource.com/c/go/+/585820
Auto-Submit: Russ Cox <rsc@golang.org>
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Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-05-21 19:41:02 +00:00
Than McIntosh 647870becc cmd/go: turn back on build_plugin_reproducible script test
Re-enable the build_plugin_reproducible script test now that CL 586079
(more linker changes to work around xcode problems on Darwin with
build reproducibility) is in.

Fixes #64947.

Cq-Include-Trybots: luci.golang.try:gotip-darwin-amd64-longtest
Change-Id: Ice5bc5b809fa7fee689b78fcb874049493bc2c5c
Reviewed-on: https://go-review.googlesource.com/c/go/+/585356
TryBot-Bypass: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
2024-05-21 19:07:03 +00:00
Paul E. Murphy c6d142c4a7 cmd/compile/internal/ssa: fix ppc64 merging of (CLRLSLDI (SRD ...))
The rotate value was not correctly converted from a 64 bit to 32
bit rotate. This caused a miscompile of
golang.org/x/text/unicode/runenames.Names.

Fixes #67526

Change-Id: Ief56fbab27ccc71cd4c01117909bfee7f60a2ea1
Reviewed-on: https://go-review.googlesource.com/c/go/+/586915
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
2024-05-21 18:53:43 +00:00
Than McIntosh 3bcefa5276 cmd/link/internal/ld: rewrite LC_UUID for darwin external links
When building Go binaries using external linking, rewrite the LC_UUID
Macho load command to replace the content placed there by the external
linker, so as to ensure that we get reproducible builds.

Updates #64947.

Change-Id: I263a89d1a067807404febbc801d4dade33bc3288
Reviewed-on: https://go-review.googlesource.com/c/go/+/586079
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-05-21 18:45:27 +00:00
Rhys Hiltner f9ba2cff22 runtime: improve runtime-internal mutex profile tests
Have the test use the same clock (cputicks) as the profiler, and use the
test's own measurements as hard bounds on the magnitude to expect in the
profile.

Compare the depiction of two users of the same lock: one where the
critical section is fast, one where it is slow. Confirm that the profile
shows the slow critical section as a large source of delay (with #66999
fixed), rather than showing the fast critical section as a large
recipient of delay.

For #64253
For #66999

Change-Id: I784c8beedc39de564dc8cee42060a5d5ce55de39
Reviewed-on: https://go-review.googlesource.com/c/go/+/586237
Auto-Submit: Rhys Hiltner <rhys.hiltner@gmail.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
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Reviewed-by: Michael Pratt <mpratt@google.com>
2024-05-21 17:18:14 +00:00
Rhys Hiltner 87e930f728 runtime: remove GODEBUG=runtimecontentionstacks
Go 1.22 promised to remove the setting in a future release once the
semantics of runtime-internal lock contention matched that of
sync.Mutex. That work is done, remove the setting.

For #66999

Change-Id: I3c4894148385adf2756d8754e44d7317305ad758
Reviewed-on: https://go-review.googlesource.com/c/go/+/585639
Reviewed-by: Carlos Amedee <carlos@golang.org>
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Auto-Submit: Rhys Hiltner <rhys.hiltner@gmail.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
2024-05-21 17:17:36 +00:00