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53021 Commits

Author SHA1 Message Date
Ian Lance Taylor
2007599dc8 test: recognize new gofrontend error message
The new gofrontend message matches other gofrontend error messages,
so adjust the test to accept it.

For #27938
For #51237

Change-Id: I29b536f83a0cf22b1dbdae9abc2f5f6cf21d522d
Reviewed-on: https://go-review.googlesource.com/c/go/+/416014
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
2022-07-06 00:02:11 +00:00
Michael Pratt
d602380f58 cmd/compile: drop "buildcfg" from no instrument packages
Package buildcfg was added to this list by CL 403851, but package
buildcfg does not exist.

This was probably intended to refer to internal/buildcfg, but
internal/buildcfg is only used by the compiler so it is not clear why it
couldn't be instrumented.

For #44853.

Change-Id: Iad2517358be79c3eabf240376156bcff0c4bcefc
Reviewed-on: https://go-review.googlesource.com/c/go/+/414516
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Michael Pratt <mpratt@google.com>
2022-07-05 20:07:49 +00:00
Russ Cox
c111091071 cmd/go: make module@nonexistentversion failures reusable
CL 411398 added the -reuse flag for reusing cached JSON output
when the remote Git repository has not changed. One case that was
not yet cached is a lookup of a nonexistent version.

This CL adds caching of failed lookups of nonexistent versions,
by saving a checksum of all the heads and tags refs on the remote
server (we never consider other kinds of refs). If none of those have
changed, then we don't need to download the full server.

Fixes #53644.

Change-Id: I428bbc8ec8475bd7d03788934d643e1e2be3add0
Reviewed-on: https://go-review.googlesource.com/c/go/+/415678
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-07-05 12:57:46 +00:00
Russ Cox
5f305ae8e5 cmd/go: add -reuse flag to make proxy invocations more efficient
The go list -m and go mod download commands now have a -reuse flag,
which is passed the name of a file containing the JSON output from a
previous run of the same command. (It is up to the caller to ensure
that flags such as -versions or -retracted, which affect the output,
are consistent between the old and new run.)

The new run uses the old JSON to evaluate whether the answer is
unchanged since the old run. If so, it reuses that information,
avoiding a costly 'git fetch', and sets a new Reuse: true field in its
own JSON output.

This dance with saving the JSON output and passing it back to -reuse
is not necessary on most systems, because the go command caches
version control checkouts in the module cache. That cache means that a
new 'git fetch' would only download the commits that are new since the
previous one (often none at all).

The dance becomes important only on systems that do not preserve the
module cache, for example by running 'go clean -modcache' aggressively
or by running in some environment that starts with an empty file
system.

For #53644.

Change-Id: I447960abf8055f83cc6dbc699a9fde9931130004
Reviewed-on: https://go-review.googlesource.com/c/go/+/411398
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
2022-07-05 12:57:45 +00:00
Russ Cox
84e091eef0 cmd/go: record origin metadata during module download
This change adds an "Origin" JSON key to the output of
go list -json -m and go mod download -json. The associated value is a
JSON object with metadata about the source control system. For Git,
that metadata is sufficient to evaluate whether the remote server has
changed in any interesting way that might invalidate the cached data.
In most cases, it will not have, and a fetch could then avoid
downloading a full repo from the server.

This origin metadata is also now recorded in the .info file for a
given module@version, for informational and debugging purposes.

This change only adds the metadata. It does not use it to optimize
away unnecessary git fetch operations. (That's the next change.)

For #53644.

Change-Id: I4a1712a2386d1d8ab4e02ffdf0f72ba75d556115
Reviewed-on: https://go-review.googlesource.com/c/go/+/411397
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
2022-07-05 12:57:42 +00:00
Cristian Greco
ceda93ed67 build/constraint: update doc to mention a feature added in Go 1.17
The pkg documentation mentions that the "//go:build" syntax "will be"
added in Go 1.17. In fact, it has been added in that Go release, so the
documentation can now be updated.

Change-Id: I72f24063c3be62d97ca78bf724d56599f5f19460
GitHub-Last-Rev: 4371886f6c
GitHub-Pull-Request: golang/go#53647
Reviewed-on: https://go-review.googlesource.com/c/go/+/415774
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
2022-07-04 14:31:39 +00:00
Ori Bernstein
3cf79d9610 runtime: pass correct string to exits on Plan 9
In CL 405901 the definition of exit in the Plan 9 go runtime
was changed like so:

	-               status = append(itoa(tmp[:len(tmp)-1], uint64(e)), 0)
	+               sl := itoa(tmp[:len(tmp)-1], uint64(e))
	+               // Don't append, rely on the existing data being zero.
	+               status = tmp[:len(sl)+1]

However, itoa only puts the converted number "somewhere" in the buffer.
Specifically, it builds it from the end of the buffer towards the start,
meaning the first byte of the buffer is a 0 byte, and the resulting string
that's passed to exits is empty, leading to a falsely successful exit.

This change uses the returned value from itoa, rather than the buffer
that was passed in, so that we start from the correct location in the
string.

Fixes #53669

Change-Id: I63f0c7641fc6f55250857dc17a1eeb12ae0c2e10
Reviewed-on: https://go-review.googlesource.com/c/go/+/415680
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-07-04 04:09:44 +00:00
Alexander Yastrebov
e822b1e26e net/http: omit invalid header value from error message
Updates #43631

Change-Id: I0fe3aafdf7ef889fed1a830128721393f8d020e6
GitHub-Last-Rev: c359542d74
GitHub-Pull-Request: golang/go#48979
Reviewed-on: https://go-review.googlesource.com/c/go/+/355929
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-07-01 15:57:45 +00:00
Ian Lance Taylor
4a2a3bca18 cmd/go, go/build: clarify build constraint docs
Clarify that the //go:build line is an expression of constraints,
not a constraint itself.

Fixes #53308

Change-Id: Ib67243c6ee5cfe3b688c12b943b5e7496f686035
Reviewed-on: https://go-review.googlesource.com/c/go/+/411697
Reviewed-by: Rob Pike <r@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: David Chase <drchase@google.com>
2022-07-01 15:39:01 +00:00
Sebastian Gassner
9a4d5357f4 flag: highlight support for double dashes in docs
Updating examples, to show that double dashes are also permitted. This has been easy to miss previously.

Change-Id: Ib67b4e39fea90ef4cb9e894709c53baedfc18fc2
GitHub-Last-Rev: f7df57b646
GitHub-Pull-Request: golang/go#53628
Reviewed-on: https://go-review.googlesource.com/c/go/+/415374
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
2022-07-01 15:37:46 +00:00
Robert Griesemer
c847a2c9f0 go/types, types2: document that exported predicates are unspecified for invalid type arguments
Per discussion on the issue.

For #53595.

Change-Id: Iefd161e5c7e792d454652cbe831a0c2d769f748e
Reviewed-on: https://go-review.googlesource.com/c/go/+/415574
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-07-01 01:36:45 +00:00
Robert Griesemer
405c269b85 go/types, types2: re-enable a couple of commented out tests
Change-Id: Ibb27012b18fc0f0f9f9ef74cc120e7ef981e6d43
Reviewed-on: https://go-review.googlesource.com/c/go/+/415156
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
2022-06-30 23:25:23 +00:00
Ben Sarah Golightly
aad9382e59 go/doc/comment: support links in lists in comments
The proposed (#51082) new go doc comment additions supports lists,
links, and doc links, but does not support links and doc links inside
lists, so implemnent this.

Fixes #53610

Change-Id: I4fa17d204fc9efa8f3633133e4a49e56cf1aa9bc
Reviewed-on: https://go-review.googlesource.com/c/go/+/415174
Reviewed-by: Ben Golightly <golightly.ben@googlemail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
2022-06-30 21:57:02 +00:00
AndreasHGK
af725f4286 os: fix a typo in path_windows.go
I believe the path_windows.go file has a typo, which is fixed in this PR

Change-Id: Ibf1a7189a6312dbb3b1e6b512beeb6d99da5b5bc
GitHub-Last-Rev: cedac7eaa0
GitHub-Pull-Request: golang/go#53629
Reviewed-on: https://go-review.googlesource.com/c/go/+/415434
Auto-Submit: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
2022-06-30 21:52:06 +00:00
Ian Lance Taylor
993c387032 os: simplify deadline fluctuation tests
This applies the net package CL 365334, CL 366176, CL 372215 to the os
package.

CL 365334:

    These tests were checking for fairly narrow timing windows, but were
    running in parallel and heavily dependent on timer and goroutine
    scheduling. This change eliminates unnecessary goroutines, runs the
    tests sequentially (dramatically shortening the timeouts to reduce the
    penalty of doing so), and uses timestamp comparison instead of
    background timers to hopefully gain some robustness from monotonic
    timestamps.

    Many of the other tests from this package would benefit from similar
    simplifications, which we can apply if and when we notice flaky
    failures or want to improve the latency of running the test.

CL 366176:

    It appears that at least the OpenBSD kernel gets sloppier the longer
    the timeout we give it, up to an observed overhead of around 25%.
    Let's give it a little more than that (33%) in the comparison, and
    also increase the growth curve to match the actual observed times
    instead of exponential initial growth.

CL 372215:

    Decrease the slop everywhere else, since NetBSD and OpenBSD seem to be
    the only ones that miss by that much.

For #36108
For #50189
Fixes #50725 (we hope)

Change-Id: I0854d27af67ca9fcf0f9d9e4ff67acff4c2effc8
Reviewed-on: https://go-review.googlesource.com/c/go/+/415234
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-06-30 19:37:21 +00:00
Bryan C. Mills
4914e4e334 cmd/go/internal/modindex: remove spurious field from index_format documentation
The 'path' field was removed in an earlier revision to the format.

While auditing the format, I also cleaned up a couple of minor
typographical issues.

For #53586.

Change-Id: I4cd1ce9e970023441c11244428ed2971be1d8138
Reviewed-on: https://go-review.googlesource.com/c/go/+/415514
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-06-30 19:32:09 +00:00
Bryan C. Mills
981d5947af cmd/go: include module root in package index key
The package index format includes the directory relative to the module
root. The module root for a given directory can change even if the
contents of the directory itself do not (by adding or removing a
go.mod file in some parent directory).

Thus, we need to invalidate the index for a package when its module
root location changes.

Fixes #53586 (I think).

Change-Id: I2d9f4de80e16bce75b3106a2bad4a11d8378d037
Reviewed-on: https://go-review.googlesource.com/c/go/+/415475
Reviewed-by: Russ Cox <rsc@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-06-30 18:20:39 +00:00
Bryan C. Mills
84db00ffd1 cmd/go: add a 'sleep' command for script tests
Due to mtime skew we don't index mutable packages with an mtime
younger than 2 seconds. In order to test indexed packages reliably, we
want to be able to sleep long enough for the files in the package to be cached.

(As an alternative we could instead use os.Chtimes to fake old enough
timestamps, but sleeping keeps the tests more realistic.)

For #53586.

Change-Id: I1873f47c55a72d928451593b8c989f0092a557db
Reviewed-on: https://go-review.googlesource.com/c/go/+/415474
Auto-Submit: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-06-30 18:10:53 +00:00
Keith Randall
31b8c23c57 cmd/compile: fix prove pass when upper condition is <= maxint
When the terminating condition is <= X, we need to make sure that
X+step doesn't overflow.

Fixes #53600

Change-Id: I36e5384d05b4d7168e48db6094200fcae409bfe5
Reviewed-on: https://go-review.googlesource.com/c/go/+/415219
Reviewed-by: Than McIntosh <thanm@google.com>
Run-TryBot: David Chase <drchase@google.com>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
2022-06-30 15:11:19 +00:00
Robert Griesemer
17083a2fdf spec: retitle section on "Assignments" to "Assignment statements"
This permits a clear distinction between an individual assignment
and an assignment statement which may assign more than one value.
It also makes this section title consistent with all other section
titles about statements. Adjust internal links and prose where
appropriate. (Note that the spec already referred to assignment
statements in a couple of places, even before this change.)

Add an introductory paragraph to the section on assignment statements.

Preparation for adding a section on value vs reference types
(issue #5083).

Change-Id: Ie140ac296e653c67da2a5a203b63352b3dc4f9f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/413615
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-06-30 00:58:41 +00:00
Matthew Dempsky
4d95fe6653 test: add regress test for #53619
Works with cmd/compile, but fails with gccgo currently.

Updates #53619.

Change-Id: I787faa9584cc33bd851c9cc8f146c91f4eb36fc9
Reviewed-on: https://go-review.googlesource.com/c/go/+/415238
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
2022-06-30 00:08:36 +00:00
Guoqi Chen
6a7c64fde5 debug/pe: add IMAGE_FILE_MACHINE_LOONGARCH{64,32}
Related: https://github.com/MicrosoftDocs/win32/pull/1067

Change-Id: I946253f217a5c616ae4a19be44634000cba5020e
Reviewed-on: https://go-review.googlesource.com/c/go/+/411616
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2022-06-29 22:29:34 +00:00
Damien Neil
b2cc0fecc2 net/http: preserve nil values in Header.Clone
ReverseProxy makes a distinction between nil and zero-length header values.
Avoid losing nil-ness when cloning a request.

Thanks to Christian Mehlmauer for discovering this.

Fixes #53423
Fixes CVE-2022-32148

Change-Id: Ice369cdb4712e2d62e25bb881b080847aa4801f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/412857
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2022-06-29 22:28:30 +00:00
Cherry Mui
64ef16e777 cmd/internal/obj/arm64: save LR and SP in one instruction for small frames
When we create a thread with signals blocked. But glibc's
pthread_sigmask doesn't really allow us to block SIGSETXID. So we
may get a signal early on before the signal stack is set. If we
get a signal on the current stack, it will clobber anything below
the SP. This CL makes it to save LR and decrement SP in a single
MOVD.W instruction for small frames, so we don't write below the
SP.

We used to use a single MOVD.W instruction before CL 379075.
CL 379075 changed to use an STP instruction to save the LR and FP,
then decrementing the SP. This CL changes it back, just this part
(epilogues and large frame prologues are unchanged). For small
frames, it is the same number of instructions either way.

This decreases the size of a "small" frame from 0x1f0 to 0xf0.
For frame sizes in between, it could benefit from using an
STP instruction instead of using the prologue for the "large"
frame case. We don't bother it for now as this is a stop-gap
solution anyway.

This only addresses the issue with small frames. Luckily, all
functions from thread entry to setting up the signal stack have
samll frames.

Other possible ideas:
- Expand the unwind info metadata, separate SP delta and the
  location of the return address, so we can express "SP is
  decremented but the return address is in the LR register". Then
  we can always create the frame first then write the LR, without
  writing anything below the SP (except the frame pointer at SP-8,
  which is minor because it doesn't really affect program
  execution).
- Set up the signal stack immediately in mstart in assembly.

For Go 1.19 we do this simple fix. We plan to do the metadata fix
in Go 1.20 ( #53609 ).

Other LR architectures are addressed in CL 413428.

Fix #53374.

Change-Id: I9d6582ab14ccb06ac61ad43852943d9555e22ae5
Reviewed-on: https://go-review.googlesource.com/c/go/+/412474
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Eric Fang <eric.fang@arm.com>
2022-06-29 22:26:58 +00:00
Alan Donovan
0750107074 go/token: use atomics not Mutex for last file cache
Previously, FileSet would cache the last *File found by a lookup,
using a full (exclusive) mutex within FileSet.File, turning a logical
read operation into an update. This was one of the largest sources
of contention in gopls.  This change uses atomic load/store on the
'last' field without a mutex.

Also, in FileSet.AddFile, allocate the File outside the critical
section; all the other operations are typically cheap.

Fixes #53507

Change-Id: Ice8641650d8495b25b0428e9b9320837ff2ca7e1
Reviewed-on: https://go-review.googlesource.com/c/go/+/411909
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-06-29 22:19:48 +00:00
Damien Neil
e5017a93fc net/http: don't strip whitespace from Transfer-Encoding headers
Do not accept "Transfer-Encoding: \rchunked" as a valid TE header
setting chunked encoding.

Thanks to Zeyu Zhang (https://www.zeyu2001.com/) for identifying
the issue.

Fixes #53188
Fixes CVE-2022-1705

Change-Id: I1a16631425159267f2eca68056b057192a7edf6c
Reviewed-on: https://go-review.googlesource.com/c/go/+/409874
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2022-06-29 20:22:10 +00:00
Michael Pratt
20760cff00 runtime: add race annotations to cbs.lock
cbs.lock protects a map. The map implementation is race instrumented
regardless of which package is it called from.

lock/unlock are not automatically race instrumented, so we can trigger
race false positives without manually annotating our lock acquire and
release.

compileCallback is used during initialization before the P is available,
at which point raceacquire will crash during a racecallback to get the
race proc. Thus we skip instrumentation until scheduler initialization
is complete.

Fixes #50249.

Change-Id: Ie49227c9e9210ffbf0aee65f86f2b7b6a2f64638
Reviewed-on: https://go-review.googlesource.com/c/go/+/414518
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
2022-06-29 20:12:49 +00:00
Roland Shoemaker
e6c0546c54 crypto/x509/pkix: move crl deprecation message
There was a deprecation message on RevokedCertificate which was
intended to be on CertificateList.

Change-Id: Ia378935afc75c36702e64cf33ea5c8a24c1488ca
Reviewed-on: https://go-review.googlesource.com/c/go/+/414754
Auto-Submit: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
Reviewed-by: Tatiana Bradley <tatiana@golang.org>
2022-06-29 17:10:00 +00:00
Cherry Mui
3562977b6f cmd/internal/obj/mips,s390x,riscv: save LR after decrementing SP
Following CL 412474, for the rest of the LR architectures. On
MIPS(32/64), S390X, and RISCV, there is no single instruction that
saves the LR and decrements the SP, so we need to insert an
instruction to save the LR after decrementing the SP.

On ARM(32) and PPC64 we already use a single instruction to save
the LR and decrement the SP.

Updates #53374.

Change-Id: I5a2e211026d95edb0e0f7d084ddb784f8077b86d
Reviewed-on: https://go-review.googlesource.com/c/go/+/413428
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
2022-06-29 16:36:06 +00:00
Michael Pratt
d6481d5b96 runtime: add race annotations to metricsSema
metricsSema protects the metrics map. The map implementation is race
instrumented regardless of which package is it called from.

semacquire/semrelease are not automatically race instrumented, so we can
trigger race false positives without manually annotating our lock
acquire and release.

See similar instrumentation on trace.shutdownSema and reflectOffs.lock.

Fixes #53542.

Change-Id: Ia3fd239ac860e037d09c7cb9c4ad267391e70705
Reviewed-on: https://go-review.googlesource.com/c/go/+/414517
Run-TryBot: Michael Pratt <mpratt@google.com>
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2022-06-29 16:30:19 +00:00
Roland Shoemaker
bd1783e812 crypto/x509: improve RevocationList documentation
Adds documentation for a handful of RevocationList fields.

Updates #50674

Change-Id: I26b838553d870b631deaf8b9a5b4d0b251fdef20
Reviewed-on: https://go-review.googlesource.com/c/go/+/414635
Run-TryBot: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2022-06-29 15:00:52 +00:00
eric fang
160414ca6a cmd/internal/obj/arm64: fix BITCON constant printing error
For some 32-bit instructions whose first operand is a constant, we
copy the lower 32 bits of the constant into the upper 32 bits in progedit,
which leads to the wrong value being printed in -S output.

The purpose of this is that we don't need to distinguish between 32-bit
and 64-bit constants when checking C_BITCON, this CL puts the modified
value in a temporary variable, so that the constant operand of the
instruction will not be modified.

Fixes #53551

Change-Id: I40ee9223b4187bff1c0a1bab7eb508fcb30325f9
Reviewed-on: https://go-review.googlesource.com/c/go/+/414374
Run-TryBot: Eric Fang <eric.fang@arm.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Keith Randall <khr@google.com>
2022-06-28 21:01:39 +00:00
hidu
a30f434667 cmd/go: pass --no-decorate when listing git tags for a commit
This avoids a parse error when the user's global .gitconfig sets
log.decorate to true.

Fixes #51312.

Change-Id: Ic47b0f604c0c3a404ec50d6e09f4e138045ac2f2
Reviewed-on: https://go-review.googlesource.com/c/go/+/387835
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2022-06-28 19:45:04 +00:00
Bryan C. Mills
3580ef9d64 os/exec: on Windows, suppress ErrDot if the implicit path matches the explicit one
If the current directory is also listed explicitly in %PATH%,
this changes the behavior of LookPath to prefer the explicit name for it
(and thereby avoid ErrDot).

However, in order to avoid running a different executable from what
would have been run by previous Go versions, we still return the
implicit path (and ErrDot) if it refers to a different file entirely.

Fixes #53536.
Updates #43724.

Change-Id: I7ab01074e21a0e8b07a176e3bc6d3b8cf0c873cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/414054
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
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2022-06-28 19:29:51 +00:00
Cuong Manh Le
34f3ac5f16 cmd/compile: fix generic inter-inter comparisons from value switch statements
If value is a non-empty interface and has shape, we still need to
convert it to an interface{} first.

Fixes #53477

Change-Id: I516063ba4429a6cc24c483758387ec13815fc63e
Reviewed-on: https://go-review.googlesource.com/c/go/+/414834
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2022-06-28 18:38:57 +00:00
Baokun Lee
7df0a002e6 cmd/go/internal/modfetch: cache latest revinfo in Versions func
The responses have been cached by the web2 package before removed
it in CL 170879. This change add latest revinfo cache in Versions
func.

Fixes #51391

Change-Id: I73597e0a6b4938238e69d85e1cbbaa9007776db3
Reviewed-on: https://go-review.googlesource.com/c/go/+/403335
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Reviewed-by: Bryan Mills <bcmills@google.com>
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Reviewed-by: David Chase <drchase@google.com>
2022-06-28 18:33:29 +00:00
Robert Griesemer
d5bf9604aa test: add more tests for const decls with ommitted RHS expressions
Add analogous tests to go/types and types2 test suites.
Make sure "assert" built-in is available in type-checker
tests.

For #49157.
For #53585.

Change-Id: I092901ecb43eb4833c09bd8f5e38efbe0285babe
Reviewed-on: https://go-review.googlesource.com/c/go/+/414795
Run-TryBot: Robert Griesemer <gri@google.com>
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2022-06-28 18:11:31 +00:00
Ian Lance Taylor
533082d1a0 test: add test that gofrontend failed to compile
For #51475

Change-Id: Ie1b27304687225194a323dc8305e5d62578fff4f
Reviewed-on: https://go-review.googlesource.com/c/go/+/414755
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Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2022-06-28 16:57:18 +00:00
Guoqi Chen
47e792e22e runtime: clean up unused function gosave on loong64
Change-Id: I28960a33d251a36e5e364fa6e27c5b2e13349f6b
Reviewed-on: https://go-review.googlesource.com/c/go/+/409354
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
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2022-06-28 16:41:48 +00:00
Bryan C. Mills
a6e5be0d30 cmd/go: omit build metadata that may contain system paths when -trimpath is set
CGO flag variables often include system paths for header files and
compiled libraries. The point of -trimpath is to avoid dependending on
system paths, so stamping these variables is counterproductive.

Moreover, the point of stamping build information is to improve
reproducibility. Since we don't also stamp the versions of C
compilers, headers, and libraries used in a cgo build, only the most
trivial cgo programs can be faithfully reproduced from the stamped
information.

Likewise, the -ldflags flag may include system-specific paths,
particularly if external linking is in use. For now, we omit -ldflags
entirely; however, in the future we may instead want to parse and
redact the individual flags.

Fixes #52372.

Change-Id: I73318a01cce4371d66955b3261fc7ee58d4b33dd
Reviewed-on: https://go-review.googlesource.com/c/go/+/409174
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
2022-06-28 16:04:54 +00:00
Russ Cox
d3ffff2790 api: correct debug/pe issue number for Go 1.19 changes
It was #51868 not #51686.

For #53310.

Change-Id: I2cf28ca4de65e7030fdbd05e7f32fe42c8f3ca0a
Reviewed-on: https://go-review.googlesource.com/c/go/+/414515
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2022-06-28 13:01:41 +00:00
Russ Cox
751cae8855 cmd/go/internal/modload: fix doc comment
Change-Id: Ib7f47c7fc2fa5db3adbe51612b1e7a9bb49647b5
Reviewed-on: https://go-review.googlesource.com/c/go/+/411105
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-06-28 13:00:32 +00:00
Daniel Martí
85d7bab91d go/printer: report allocs and set bytes
We now get more than just time/op.

	name      time/op
	Print-16    6.29ms ± 3%

	name      speed
	Print-16  8.25MB/s ± 3%

	name      alloc/op
	Print-16     483kB ± 0%

	name      allocs/op
	Print-16     17.8k ± 0%

Change-Id: I6b5e9a30a826ff8603724bd5983e6b7f5ec12708
Reviewed-on: https://go-review.googlesource.com/c/go/+/412554
Reviewed-by: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
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Auto-Submit: Robert Griesemer <gri@google.com>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-06-28 03:49:03 +00:00
Ian Lance Taylor
3af5280c00 net: really skip Windows PTR tests if we say we are skipping them
For #38111

Change-Id: I2651687367af68ee070ea91106f4bc18adab2762
Reviewed-on: https://go-review.googlesource.com/c/go/+/414634
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
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2022-06-27 22:22:47 +00:00
Bryan C. Mills
a42573c2f1 net: avoid darwin/arm64 platform bug in TestCloseWrite
On darwin_arm64, reading from a socket at the same time as the other
end is closing it will occasionally hang for 60 seconds before
returning ECONNRESET. (This is a macOS issue, not a Go issue.)

Work around this condition by adding a brief sleep before the read.

Fixes #49352 (we hope).
Updates #37795.

Change-Id: I4052aec21d311d7370550aea9dd7941f39141133
Reviewed-on: https://go-review.googlesource.com/c/go/+/414534
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2022-06-27 18:18:08 +00:00
SemihBKGR
68289f39f0 html/template: fix typo in content_test.go
esacped -> escaped

Change-Id: I253c46b30bb1cf7cdfb4668628907d16428fefb9
GitHub-Last-Rev: accd0e089f
GitHub-Pull-Request: golang/go#53553
Reviewed-on: https://go-review.googlesource.com/c/go/+/414274
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Ian Lance Taylor <iant@google.com>
2022-06-27 17:04:56 +00:00
Than McIntosh
c3bea70d9b cmd/link: link against libsynchronization.a for -race on windows
As of LLVM rev 41cb504b7c4b18ac15830107431a0c1eec73a6b2, the
race detector runtime now refers to things in the windows
synchronization library, hence when doing windows internal
linking, at that library to the list of host archives that
we visit. The tsan code that makes the reference is here:

41cb504b7c/compiler-rt/lib/sanitizer_common/sanitizer_win.cpp (L48)
41cb504b7c/compiler-rt/lib/sanitizer_common/sanitizer_win.cpp (L834)

Note that libsynchronization.a is not guaranteed to be available on
all windows systems, so in the external linking case, check for its
existence before adding "-lsynchronization" to the external linker
args.

Updates #53539.

Change-Id: I433c95c869915693d59e9c1082d5b8a11da1fc8c
Reviewed-on: https://go-review.googlesource.com/c/go/+/413817
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
2022-06-27 16:28:25 +00:00
Ian Lance Taylor
f093cf90bf test: add test that caused gofrontend crash
For #52871

Change-Id: Id6102222a8b1ec8a84b716425bed0e349c65dbc4
Reviewed-on: https://go-review.googlesource.com/c/go/+/414336
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2022-06-27 16:13:35 +00:00
Ian Lance Taylor
155612a9b9 test: add test that caused gofrontend crash
The gofrontend crashed importing a complex 0 constant.

For #52862

Change-Id: Ia87d8eadb9c5ddf51e1cd65c1a626f05f0d068d4
Reviewed-on: https://go-review.googlesource.com/c/go/+/413980
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Run-TryBot: Ian Lance Taylor <iant@golang.org>
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2022-06-27 16:12:51 +00:00
Michael Pratt
a861eee51a cmd/go: compile runtime/internal/syscall as a runtime package
runtime/internal/syscall is a runtime package, so it should be built
with -+.

Specifically, we don't want libfuzzer instrumentation in Go functions
defined in runtime/internal/syscall, which is disabled with -+.

For #53190.

Change-Id: I9f16f5c7c7ce10b98371e9de82fcea6da854e163
Reviewed-on: https://go-review.googlesource.com/c/go/+/413818
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2022-06-27 14:35:57 +00:00