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52937 commits

Author SHA1 Message Date
Roland Shoemaker d27128b065 doc/go1.19: fix crypto tags
Closes an unclosed <code> tag, and tags a type that was untagged.

Change-Id: I9a1efda07f783f0ca7a93ffefbda4e29f5fc8d41
Reviewed-on: https://go-review.googlesource.com/c/go/+/411694
Auto-Submit: Roland Shoemaker <roland@golang.org>
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Reviewed-by: Julie Qiu <julieqiu@google.com>
Run-TryBot: Roland Shoemaker <roland@golang.org>
2022-06-13 15:38:06 +00:00
Louis PORTAY 55590f3a2b net/http: doc: update RFC reference for appropriate HTTP codes
This documentation commit points to the latest RFC documenting HTTP codes

Change-Id: Ia7640664637f0c7846e2182353b787474bac7b4f
GitHub-Last-Rev: 5fb544ee32
GitHub-Pull-Request: golang/go#53318
Reviewed-on: https://go-review.googlesource.com/c/go/+/411475
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
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2022-06-10 23:30:35 +00:00
Dominik Honnef ff3db8d12d doc: fix typos in Go memory model
Change-Id: I8e94215d9bee0ea3ad378870fe565e961a9d80c9
Reviewed-on: https://go-review.googlesource.com/c/go/+/411595
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2022-06-10 22:10:29 +00:00
Cherry Mui fb75c2da91 cmd/dist, cmd/internal/metadata: don't install metadata binary
It is only needed by cmd/dist, no need to build and install the
binary.

Change-Id: I6aba6b81496406077a0efba255c35020cff9d351
Reviewed-on: https://go-review.googlesource.com/c/go/+/411534
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Reviewed-by: Michael Pratt <mpratt@google.com>
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2022-06-10 20:39:12 +00:00
Khaled Yakdan 386245b68e runtime: fix stack split at bad time when fuzzing
Fix #53190

Change-Id: I6c1f9c3ab58818d3a9f05ddaa02fc247e53677d3
GitHub-Last-Rev: 13b0749c13
GitHub-Pull-Request: golang/go#53191
Reviewed-on: https://go-review.googlesource.com/c/go/+/410034
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2022-06-10 15:00:45 +00:00
Dmitri Goutnik 2cfbef4380 cmd/cgo: recognize clang 14 DWARF type names
Fixes #53013

Change-Id: I169d4eb2420a6da52cc9abe17da98c3092a91be6
Reviewed-on: https://go-review.googlesource.com/c/go/+/407514
Auto-Submit: Ian Lance Taylor <iant@google.com>
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2022-06-09 19:31:37 +00:00
Michael Pratt c7ccabf3fe runtime/cgo: retry _beginthread on EACCES
We occassionally see _beginthread failing with EACCES, meaning
"insufficient resources" according to the Microsoft documentation.
Exactly which resources is unclear.

Similar to pthread_create on unix systems, we can wait a bit and retry
to try to get success. The alternative is to abort, so we may as well
give it a try.

Fixes #52572.

Change-Id: I6e05add53b4ae36c61e53b1ee3fed6bc74e17dfa
Reviewed-on: https://go-review.googlesource.com/c/go/+/410355
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Michael Pratt <mpratt@google.com>
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2022-06-09 18:17:45 +00:00
Michael Pratt 91019cc13d runtime/cgo: merge bodies of cgo_sys_thread_start on windows
The bodies of cgo_sys_thread_start (and x_cgo_sys_thread_create) are
nearly identical on all of the windows ports.

Create a single _cgo_beginthread implementation that contains the body
and is used on all ports. This will reduce churn in an upcoming CL to
add retry logic.

We could theoretically have a single implementation of
_cgo_sys_thread_start shared by all ports, but I keep them separate for
ease of searching. Right now every single port implements this function
in their gcc_GOOS_GOARCH.c file, so it is nice to keep this symmetry.

_cgo_dummy_export must move out of libcgo_windows.h because it is a
definition and the inclusion of libcgo_windows.h in multiple files
creates duplicate definitions.

For #52572.

Change-Id: I9fa22009389349c754210274c7db2631b061f9c7
Reviewed-on: https://go-review.googlesource.com/c/go/+/410354
Run-TryBot: Michael Pratt <mpratt@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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2022-06-09 18:17:39 +00:00
Cherry Mui 840e99ed74 api: promote next to go1.19
Change-Id: I3d80f0691b399fe4ee4a0d161b5cee907ae6b94f
Reviewed-on: https://go-review.googlesource.com/c/go/+/411394
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Cherry Mui <cherryyz@google.com>
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2022-06-09 15:15:48 +00:00
Robert Findley 1a2ca95ad2 go/types, types2: only set instance context if packages match
In CL 404885, we avoid infinite expansion of type instances by sharing a
context between the expanding type and new instances created during
expansion. This ensures that we do not create an infinite number of
identical but distinct instances in the presence of reference cycles.
This pins additional memory to the new instance, but no more
(approximately) than would be pinned by the original expanding instance.

However, we can do better: since type cycles are only possible within a
single package, we only need to share the local context if the two types
are in the same package. This reduces the scope of the shared local
context, and in particular can avoid pinning the package of the
expanding type to the package of the newly created instance.

Updates #52728

Change-Id: Iad2c85f4ecf60125f1da0ba22a7fdec7423e0338
Reviewed-on: https://go-review.googlesource.com/c/go/+/410416
Run-TryBot: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
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2022-06-09 01:07:11 +00:00
Michael Matloob b51d44c6dd cmd/go/testdata/script: fix skip on list_replace_absolute_windows
The test should skip if it's not on windows *or* it's a short test, but
instead is now skipping if it's not on windows *and* it's a short test,
causing it to be run on non-windows longtest builders.

Change-Id: Ica011bab632b713b0564fefabd5b42878d401844
Reviewed-on: https://go-review.googlesource.com/c/go/+/411122
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Michael Matloob <matloob@golang.org>
Auto-Submit: Michael Matloob <matloob@golang.org>
2022-06-08 23:36:35 +00:00
Cherry Mui 80f86f706d api/next: minor reformat
Add newline endings to files without them. Delete empty lines. So
it is consistent and easier to put them together.

Change-Id: I84e6b7a1fe59e9f4d7f00f61539f6449f19a5d40
Reviewed-on: https://go-review.googlesource.com/c/go/+/411121
Run-TryBot: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-06-08 23:36:05 +00:00
Michael Pratt 13f6be2833 runtime: use pidleget for faketime jump
In faketime mode, checkdead is responsible for jumping time forward to
the next timer expiration, and waking an M to handle the newly ready
timer.

Currently it pulls the exact P that owns the next timer off of the pidle
list. In theory this is efficient because that P is immediately eligible
to run the timer without stealing. Unfortunately it is also fraught with
peril because we are skipping all of the bookkeeping in pidleget:

* Skipped updates to timerpMask mean that our timers may not be eligible
  for stealing, as they should be.
* Skipped updates to idlepMask mean that our runq may not be eligible
  for stealing, as they should be.
* Skipped updates to sched.npidle may break tracking of spinning Ms,
  potentially resulting in lost work.
* Finally, as of CL 410122, skipped updates to p.limiterEvent may affect
  the GC limiter, or cause a fatal throw when another event occurs.

The last case has finally undercovered this issue since it quickly
results in a hard crash.

We could add all of these updates into checkdead, but it is much more
maintainable to keep this logic in one place and use pidleget here like
everywhere else in the runtime. This means we probably won't wake the
P owning the timer, meaning that the P will need to steal the timer,
which is less efficient, but faketime is not a performance-sensitive
build mode. Note that the M will automatically make itself a spinning M
to make it eligible to steal since it is the only one running.

Fixes #53294
For #52890

Change-Id: I4acc3d259b9b4d7dc02608581c8b4fd259f272e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/411119
Run-TryBot: Michael Pratt <mpratt@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
2022-06-08 21:56:02 +00:00
Michael Matloob 1292176bc9 cmd/go: clean paths before using them form index functions
We use str.TrimFilePathPrefix to trim the module root prefix and get the
relative path of each package in the module when scanning the module
and in the RelPath function.  Make sure to clean the path before
indexing and in RelPath to ensure that each path starts with that
prefix, because walk will clean the root path before joining each
subdirectory path to it.

Change-Id: I1dc1eddbd42030eb6d5d8e76a8675f94216447c3
Reviewed-on: https://go-review.googlesource.com/c/go/+/411118
Run-TryBot: Michael Matloob <matloob@golang.org>
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Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2022-06-08 21:00:49 +00:00
Tobias Klauser 1858ea5d85 syscall: remove unused setgroups on linux/loong64
Setgroups in syscall_linux.go already wraps the setgroups(2) syscall
with correct POSIX semantics (ref. CL 210639).

Change-Id: I961cd7c7fce1d70d23bf13cc82cad17854bbf40e
Reviewed-on: https://go-review.googlesource.com/c/go/+/411214
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
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2022-06-08 20:41:37 +00:00
Austin Clements bdde41e3ba runtime: skip TestGdbBacktrace on gdb bug
Very rarely, GDB will successfully run the whole test and the inferior
will exit successfully, and then GDB itself hangs and never exits.
Detect this and skip the test as flaky. We could just continue the
test since all of the output we need is there, but by skipping it
we're less likely to notice serious regressions in this test.

Fixes #37405.

Change-Id: I016cbb06f48673f064733da3e3f1ddcbefd58159
Reviewed-on: https://go-review.googlesource.com/c/go/+/411117
Reviewed-by: Cherry Mui <cherryyz@google.com>
2022-06-08 19:41:54 +00:00
Damien Neil 432158b69a net: fix testHookDialTCP race
CL 410754 introduces a race accessing the global testHookDialTCP hook.
Avoiding this race is difficult, since Dial can return while
goroutines it starts are still running. Add a version of this
hook to sysDialer, so it can be set on a per-test basis.

(Perhaps other uses of this hook should be moved to use the
sysDialer-local hook, but this change fixes the immediate data race.)

For #52173.

Change-Id: I8fb9be13957e91f92919cae7be213c38ad2af75a
Reviewed-on: https://go-review.googlesource.com/c/go/+/410957
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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2022-06-08 17:11:00 +00:00
Michael Matloob 899f0a29c7 cmd/go: enable module index by default
This changes the module index to be enabled by default, rather than
disabled by default. The index can still be disabled by setting
GODEBUG=index=0.

Fixes #53290.

Change-Id: Ic3728fc69d96bb6ef56b56e8c9f2dce35f2923cc
Reviewed-on: https://go-review.googlesource.com/c/go/+/410821
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2022-06-08 16:53:29 +00:00
Michael Matloob f862280e30 cmd/go: properly call PackageModuleRoot to get modroot for index
PackageModuleRoot needs to be called with the package's path, not
its directory on disk.

Change-Id: I080fe8ce2aeb72e1466624db81595a00915606bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/410820
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Michael Matloob <matloob@golang.org>
2022-06-08 16:27:53 +00:00
Michael Matloob d65166024f cmd/go: set Root and target fields for packages in GOPATH
This change replicates the behavior filed in issue #37015 for packages
imported from the module index. That behavior is that packages that
happen to exist in a GOPATH src directory have p.Root and p.Target set
even when the packages are loaded from modules. This is likely
unintentional behavior because in module mode, packages shouldn't behave
differently depending on whether their directories exist in GOPATH. But
for uniformity, (and because two of our tests depend on this behavior),
this CL will implement this behavior. We can remove it from the module
index when we remove it from the go/build logic.

Change-Id: I3f501c92fbb76eaf86b6b9275539f2129b67f884
Reviewed-on: https://go-review.googlesource.com/c/go/+/410822
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Michael Matloob <matloob@golang.org>
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Reviewed-by: Russ Cox <rsc@golang.org>
2022-06-08 16:27:42 +00:00
Russ Cox 4afb0b9e53 doc/go1.19: delete remaining TODOs
The crypto ones were done in a separate CL and didn't merge well.
Same for runtime/debug.

The others are stale.

For #51400.

Change-Id: Iadb4de94d21cd6a20f52277a1c3d7800a729b81e
Reviewed-on: https://go-review.googlesource.com/c/go/+/411115
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Reviewed-by: David Chase <drchase@google.com>
2022-06-08 15:47:58 +00:00
Michael Pratt 3426b7201d runtime: gofmt
libfuzzerHookStrCmp is manually reformatted into a proper go doc list.

We don't always format testdata, but these test programs are standard Go
programs that can be formatted.

Change-Id: I4dde398bca225ae8c72e787e4d43fd0ccfd0a90b
Reviewed-on: https://go-review.googlesource.com/c/go/+/411114
Auto-Submit: Michael Pratt <mpratt@google.com>
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2022-06-08 15:44:05 +00:00
Russ Cox f330a3a987 doc/go1.19: complete most remaining TODOs
The ones I left behind are almost entirely ones that I see pending CLs for.
Also make various fixes to existing text.

For #51400.

Change-Id: I555e0074c9df82b5bdb345e21a08c8757ca147b4
Reviewed-on: https://go-review.googlesource.com/c/go/+/410814
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
2022-06-08 15:30:59 +00:00
Tobias Klauser 2882786bf4 runtime: remove unused pipe and setNonblock on linux/loong64
CL 389354 removed the fallback to pipe on all platforms with pipe2. This
is the case for linux. Thus, pipe and setNonblock are no longer needed
on linux/loong64 too.

Change-Id: I089adf918d0fd8de5d4d61a893707a2660f89183
Reviewed-on: https://go-review.googlesource.com/c/go/+/410736
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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2022-06-08 01:54:08 +00:00
Meng Zhuo decdd87bea doc/go1.19: mention riscv64 supported regabi
Change-Id: I715e53e4baf67f896fa9c240f7668ce11f7b33c3
Reviewed-on: https://go-review.googlesource.com/c/go/+/409195
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
2022-06-08 00:55:30 +00:00
Dan Kortschak b72a6a7b86 os: document that Chdir affects fs.FS returned by DirFS with a relative path
Fixes #47214.

Change-Id: I6fdc1c4340c0943b825ac22e311179ad1cf30915
Reviewed-on: https://go-review.googlesource.com/c/go/+/410334
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
2022-06-07 23:09:21 +00:00
Tobias Klauser 30b929b1ef syscall: remove unused accept on linux/loong64
accept is no longer used on Linux since CL 346849 changed Accept to use
accept4 only.

This follows CL 386415 which already removed accept on all other Linux
platforms before the linux/loong64 port was submitted.

For #45964

Change-Id: I26945ff780e71174a0b0c2f5313c4bc1e1cbf786
Reviewed-on: https://go-review.googlesource.com/c/go/+/410737
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
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2022-06-07 23:00:27 +00:00
Damien Neil a7551fe245 net: use synthetic network in TestDialParallel
TestDialParallel is testing the Happy Eyeballs algorithm implementation,
which dials IPv4 and IPv6 addresses in parallel with the preferred
address family getting a head start. This test doesn't care about
the actual network operations, just the handling of the parallel
connections.

Use testHookDialTCP to replace socket creation with a function that
returns successfully, with an error, or after context cancellation
as required.

Limit tests of elapsed times to a check that the fallback deadline
has been exceeded in cases where this is expected.

This should fix persistent test flakiness.

Fixes #52173.

Change-Id: Ic93f270fccb63b24a91105a4d541479fc33a2de4
Reviewed-on: https://go-review.googlesource.com/c/go/+/410754
Auto-Submit: Damien Neil <dneil@google.com>
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2022-06-07 22:24:02 +00:00
Cherry Mui 19d71acd97 doc/go1.19: document that the assembler requires -p
For #51400.

Change-Id: I50fb4313105ae6dbbbe2c98cbe4a8f8e2563eba9
Reviewed-on: https://go-review.googlesource.com/c/go/+/410824
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-06-07 22:00:00 +00:00
Cherry Mui d151134851 doc/go1.19: document linker CL that switches DWARF compressed section format
For #51400.
Updates #50796.

Change-Id: Ica6c700a5b54e4712b09c43d1d7a9c3bba408b8b
Reviewed-on: https://go-review.googlesource.com/c/go/+/410823
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Fangrui Song <maskray@google.com>
2022-06-07 21:59:44 +00:00
Robert Griesemer 3507805bcd go/types, types2: better error message for invalid use of constraint type
Fixes #42881.

Change-Id: If800c5f90c0034d192bf8b6649e5cfda96df48cb
Reviewed-on: https://go-review.googlesource.com/c/go/+/410954
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
2022-06-07 21:37:21 +00:00
Robert Griesemer 269bf7e855 go/types, types2: better error message if type is not in type set
Fixes #40350.

Change-Id: Ia654d6b854971700ca618692a864265557122b23
Reviewed-on: https://go-review.googlesource.com/c/go/+/410876
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
2022-06-07 21:37:18 +00:00
Robert Griesemer d4fb93be87 go/types, types2: use | rather than ∪ when printing term lists
With this change, the termlist String() function prints termlists
in the usual Go notation and thus we can use it in error reporting.
Preparation for fixing #40350.

For #40350.

Change-Id: Ia28318841305de234a71af3146ce0c59f5e601a5
Reviewed-on: https://go-review.googlesource.com/c/go/+/410894
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
2022-06-07 21:37:14 +00:00
Damien Neil 346698eea7 doc/go1.19: add release notes for net/http and net/url
For #51400

Change-Id: I6412132db79074eef7d2cb3d66456c48b0d745a3
Reviewed-on: https://go-review.googlesource.com/c/go/+/408877
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Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>
2022-06-07 19:47:46 +00:00
Michael Pratt 7a82c6859f doc/go1.19: adjust runtime release notes
This addresses comments from CL 410356.

For #48409.
For #51400.

Change-Id: I03560e820a06c0745700ac997b02d13bc03adfc6
Reviewed-on: https://go-review.googlesource.com/c/go/+/410735
Run-TryBot: Michael Pratt <mpratt@google.com>
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Reviewed-by: Chris Hines <chris.cs.guy@gmail.com>
Reviewed-by: Russ Cox <rsc@golang.org>
2022-06-07 18:47:45 +00:00
Michael Pratt f3e051a184 runtime: document GOMEMLIMIT in environment variables section
For #48409.

Change-Id: Ia6616a377bc4c871b7ffba6f5a59792a09b64809
Reviewed-on: https://go-review.googlesource.com/c/go/+/410734
Run-TryBot: Michael Pratt <mpratt@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Chris Hines <chris.cs.guy@gmail.com>
Reviewed-by: Russ Cox <rsc@golang.org>
2022-06-07 18:47:38 +00:00
David Chase ef2567c7dd doc/go1.19: document loong64 port
Updates #46229
For #51400

Change-Id: Iedd5d3c4cd656b59ba2e1fe813851830849a8614
Reviewed-on: https://go-review.googlesource.com/c/go/+/410816
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: David Chase <drchase@google.com>
Reviewed-by: Austin Clements <austin@google.com>
2022-06-07 18:31:49 +00:00
Will Hawkins 69bb7c6ef5 sync/atomic: clarify that 8-byte alignment of variables is due to escape
For #53223.

Change-Id: I79e9b920488581a4d850e4051ee0dd600b5bbcb1
Reviewed-on: https://go-review.googlesource.com/c/go/+/410102
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Austin Clements <austin@google.com>
2022-06-07 17:44:51 +00:00
Austin Clements 81033fbd8e doc/go1.19: some platforms are still on TSAN v2
For #51400

Change-Id: Ie6d6ac773aa81b105e15ef7399374f574197d775
Reviewed-on: https://go-review.googlesource.com/c/go/+/410817
Reviewed-by: Cherry Mui <cherryyz@google.com>
2022-06-07 17:36:56 +00:00
Austin Clements 0c3a0543c2 doc/go1.19: compiler section is complete, modulo TODOs
For #51400

Change-Id: I964e52e0a36e7bbe77175670e93ce8c99e7dab6d
Reviewed-on: https://go-review.googlesource.com/c/go/+/410367
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2022-06-07 16:59:48 +00:00
Austin Clements 835a946137 doc/go1.19: minor edits
For #51400

Change-Id: I57565c1d79e0c5487d39d46f556b247d35f05d3c
Reviewed-on: https://go-review.googlesource.com/c/go/+/410674
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
2022-06-07 16:57:52 +00:00
Robert Findley 429a4041eb doc/go1.19: complete TODOs for go/types
Fill in the details of outstanding TODO items for go/types changes.

For #51400

Change-Id: Ib40d75fa1018aa164022cb49b293795dd597d49d
Reviewed-on: https://go-review.googlesource.com/c/go/+/410815
Run-TryBot: Robert Findley <rfindley@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
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Reviewed-by: Robert Griesemer <gri@google.com>
2022-06-07 16:39:37 +00:00
Roland Shoemaker d2630aa4b2 doc/go1.19: add various crypto release notes
For #51400

Change-Id: I908f53a54c6603e1bf2c9238cd51cf5c4a24407b
Reviewed-on: https://go-review.googlesource.com/c/go/+/410295
Reviewed-by: Russ Cox <rsc@golang.org>
Auto-Submit: Roland Shoemaker <roland@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Tatiana Bradley <tatiana@golang.org>
2022-06-07 16:07:58 +00:00
Khaled Yakdan 77d9252ddf runtime: fix inline assembly trampoline for arm64
Use the program counter to compute the address of the first instruction
of the ret sled. The ret sled is located after 5 instructions from the
MOVD instruction saving the value of the program counter.

Change-Id: Ie7ae7a0807785d6fea035cf7a770dba7f37de0ec
GitHub-Last-Rev: 2719208c6a
GitHub-Pull-Request: golang/go#53039
Reviewed-on: https://go-review.googlesource.com/c/go/+/407895
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
2022-06-07 14:47:46 +00:00
Motiejus Jakštys 38607c5538 cmd/link: specify -Wl,-z params as documented
Both GNU and LLVM linkers de facto accept `-zPARAM`, and Go sometimes
does it. Inconsistently: there are more uses of `-z PARAM` than
`-zPARAM`:

    $ git grep -E -- '-Wl,-z[^,]' master | wc -l
    4
    $ git grep -E -- '-Wl,-z,' master | wc -l
    7

However, not adding a space between `-z` and the param is not
documented:

llvm-13:

    $ man ld.lld-13 | grep -E -A1 -w -- "^ +-z"
         -z option
                 Linker option extensions.

gnu ld:

    $ man ld | grep -E -A1 -w -- "^ +-z"
           -z keyword
               The recognized keywords are:
    --
           -z defs
               Report unresolved symbol references from regular object files.  This is done even if the linker is creating a non-symbolic
    --
           -z muldefs
               Normally when a symbol is defined multiple times, the linker will report a fatal error. These options allow multiple definitions
    --
           -z
           --imagic

... and thus should be avoided.

`zig cc`, when used as the C compiler (`CC="zig cc" go build ...`), will
bark, because `zig cc` accepts only `-z PARAM`, as documented.

Closes ziglang/zig#11669

Change-Id: I758054ecaa3ce01a72600bf65d7f7b5c3ec46d09
GitHub-Last-Rev: e068e007da
GitHub-Pull-Request: golang/go#53030
Reviewed-on: https://go-review.googlesource.com/c/go/+/407834
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
2022-06-07 14:45:47 +00:00
Russ Cox 95b68e1e02 doc/go1.19: delete boringcrypto TODO
Boringcrypto has never been officially supported and it remains unsupported.
It need not be mentioned in the release notes.

Change-Id: I24a08d424982615244d51c1d250035d85a602023
Reviewed-on: https://go-review.googlesource.com/c/go/+/410362
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2022-06-07 01:54:55 +00:00
Russ Cox a79623b019 doc/go1.19: add more TODOs from updated relnote
CL 410244 changes relnote to look for api file changes as well
as references to proposal issues, finding various things that
were missing from the release notes.

This CL adds the TODOs that the updated relnote found.

For #51400.

Change-Id: I512a9b8f1349a6c68c8a6979f55a07964d630175
Reviewed-on: https://go-review.googlesource.com/c/go/+/410361
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2022-06-07 01:54:47 +00:00
Michael Anthony Knyszek acfff42802 doc/go1.19: add release notes for the soft memory limit and idle GC
This change resolves some TODOs in the release notes, and while we're
here, also clarifies how CPU profile samples are represented in runtime
traces.

Change-Id: Idaa36ccf65b03fd5463b2d5da682d3fa578d2f46
Reviewed-on: https://go-review.googlesource.com/c/go/+/410356
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Austin Clements <austin@google.com>
2022-06-06 21:01:07 +00:00
Russ Cox a71ca3dfbd runtime, sync, sync/atomic: document happens-before guarantees
A few of these are copied from the memory model doc.
Many are entirely new, following discussion on #47141.
See https://research.swtch.com/gomm for background.

The rule we are establishing is that each type that is meant
to help synchronize a Go program should document its
happens-before guarantees.

For #50859.

Change-Id: I947c40639b263abe67499fa74f68711a97873a39
Reviewed-on: https://go-review.googlesource.com/c/go/+/381316
Auto-Submit: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
2022-06-06 20:48:03 +00:00
Russ Cox 3651a6117e go/doc/comment: add heuristics for common badly formatted comments
In a set of 55M Go doc comments drawn from the latest version of
all public Go modules known to the module proxy in spring 2020,
the current Go 1.19 gofmt reformats about 1.57M of them.
Out of those 1.57M comments, inspection of random samples
shows that around 5% of the changed comments contain
unindented code snippets, multiline shell commands, or lists.
For example:

	// Here is a greeting:
	//
	// func main() {
	//	fmt.Println("hello, world")
	// }

	// Run this command:
	//
	// path/to/your/program -flag1=longargument1 \
	//	-flag2=longargument2 \
	//	-flag3

	// There are three possibilities:
	//
	// - Unindented code snippets (or JSON objects)
	//    in which the first and last line are unindented
	//    but end in { and start with }, respectively.
	// - Unindented multiline shell commands
	//    in which the lines end in \
	// - Unindented lists, in which wrapped lines are indented.

All three of these cases involve unindented lines next to indented
lines that would according to the usual rules begin a pre block.
Before this CL, they'd be reformatted to:

	// Here is a greeting:
	//
	// func main() {
	//
	//	fmt.Println("hello, world")
	//
	// }

	// Run this command:
	//
	// path/to/your/program -flag1=longargument1 \
	//
	//	-flag2=longargument2 \
	//	-flag3

	// There are three possibilities:
	//
	// - Unindented code snippets (or JSON objects)
	//
	//	in which the first and last line are unindented
	//	but end in { and start with }, respectively.
	//
	// - Unindented multiline shell commands
	//
	//	in which the lines end in \
	//
	// - Unindented lists, in which wrapped lines are indented.

The fact that they are not already in canonical format gives us
a signal that they might not mean what the usual rules would say.

This CL takes advantage of that opening to apply a few heuristics
to better handle these cases:

 1. If an indented code block immediately follows (without a blank line)
    an unindented line ending in { or \, include the unindented line
    in the code block.

 2. If an indented code block immediately precedes (without a blank line)
    an unindented line beginning with }, include the unindented line
    in the code block.

 3. If an indented line immediately follows (without a blank line)
    an unindented line that starts with a list marker, assume this is
    an unindented list with a wrapped indented line, and treat all
    adjacent unindented lines starting with list markers as part of
    the list, stopping at any surrounding blank lines.

This raises the fraction of “correctly” reformatted doc comments
in the corpus from approximately 87% to approximately 93%.

Change-Id: I7ac542eb085032d607a7caf3ba9020787b2978b5
Reviewed-on: https://go-review.googlesource.com/c/go/+/410360
Auto-Submit: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2022-06-06 20:47:52 +00:00