Commit Graph

55144 Commits

Author SHA1 Message Date
Cherry Mui 670ce9b8a8 [release-branch.go1.20] all: merge master (9088c69) into release-branch.go1.20
Merge List:

+ 2023-01-17 9088c691da cmd/compile: ensure temp register mask isn't empty
+ 2023-01-17 c0799f7015 os: document that Rename is not atomic on non-Unix platforms
+ 2023-01-17 d74c31f0ba doc/go1.20: update cryptography release notes
+ 2023-01-17 8e19929436 strings: remove redundant symbols
+ 2023-01-17 6cb8c43b84 cmd/go: include coverage build flags for "go list"
+ 2023-01-17 02ed0e5e67 crypto/ed25519: improve Ed25519ctx docs and add example
+ 2023-01-17 f375b305c8 crypto/x509: clarify that CheckSignatureFrom and CheckSignature are low-level APIs
+ 2023-01-17 8409251e10 cmd/go: document GODEBUG=installgoroot=all
+ 2023-01-17 66689c7d46 doc/go1.20: remove mention of arena goexperiment
+ 2023-01-17 145dd38471 archive/tar, archive/zip: document ErrInsecurePath and GODEBUG setting
+ 2023-01-16 1c65b69bd1 runtime: fix performance regression in morestack_noctxt on ppc64
+ 2023-01-13 ebb572d82f Revert "internal/fsys: follow root symlink in fsys.Walk"
+ 2023-01-13 16cec4e7a0 doc/go1.20: mention build speed improvements
+ 2023-01-13 643f463186 cmd/cover: remove go.mod from testdata subdir

Change-Id: I4d56c9353d423f7e7169db7e30cb59515d422a56
2023-01-17 13:45:09 -05:00
Keith Randall 9088c691da cmd/compile: ensure temp register mask isn't empty
We need to avoid nospill registers at this point in regalloc.
Make sure that we don't restrict our register set to avoid registers
desired by other instructions, if the resulting set includes only
nospill registers.

Fixes #57846

Change-Id: I05478e4513c484755dc2e8621d73dac868e45a27
Reviewed-on: https://go-review.googlesource.com/c/go/+/461685
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-01-17 18:21:06 +00:00
Alan Donovan c0799f7015 os: document that Rename is not atomic on non-Unix platforms
Windows provides no reliable way to rename files atomically.

The Plan 9 implementation of os.Rename performs a deletion
if the target exists.

Change-Id: Ife5f9c97b21f48c11e300cd76d8c7f715db09fd4
Reviewed-on: https://go-review.googlesource.com/c/go/+/462395
Auto-Submit: Alan Donovan <adonovan@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Alan Donovan <adonovan@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
2023-01-17 18:12:07 +00:00
Filippo Valsorda d74c31f0ba doc/go1.20: update cryptography release notes
Change-Id: I5d6d2bd5cbb246ea514e5adbe936fb31b92904af
Reviewed-on: https://go-review.googlesource.com/c/go/+/459978
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
2023-01-17 18:01:38 +00:00
fangguizhen 8e19929436 strings: remove redundant symbols
Change-Id: Ie3fe0274288d6cb6303acdcec1340c480e5c0b20
GitHub-Last-Rev: ce9d44619e
GitHub-Pull-Request: golang/go#57848
Reviewed-on: https://go-review.googlesource.com/c/go/+/462277
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
2023-01-17 17:24:17 +00:00
Than McIntosh 6cb8c43b84 cmd/go: include coverage build flags for "go list"
This patch ensures that the go command's "list" subcommand accepts
coverage-related build options, which were incorrectly left out when
"go build -cover" was rolled out. This is needed in order to do things
like check the staleness of an installed cover-instrumented target.

Fixes #57785.

Change-Id: I140732ff1e6b83cd9c453701bb8199b333fc0f2e
Reviewed-on: https://go-review.googlesource.com/c/go/+/462116
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-01-17 16:41:24 +00:00
Filippo Valsorda 02ed0e5e67 crypto/ed25519: improve Ed25519ctx docs and add example
Change-Id: Ic215a90d1e1daa5805dbab1dc56480281e53b341
Reviewed-on: https://go-review.googlesource.com/c/go/+/459975
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-01-17 16:25:39 +00:00
Filippo Valsorda f375b305c8 crypto/x509: clarify that CheckSignatureFrom and CheckSignature are low-level APIs
In particular, CheckSignatureFrom just can't check the path length
limit, because it might be enforced above the parent.

We don't need to document the supported signature algorithms for
CheckSignatureFrom, since we document at the constants in what contexts
they are allowed and not. That does leave CheckSignature ambiguous,
though, because that function doesn't have an explicit context.

Change-Id: I4c107440a93f60bc0de07df2b7efeb1a4a766da0
Reviewed-on: https://go-review.googlesource.com/c/go/+/460537
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-01-17 16:22:02 +00:00
Russ Cox 8409251e10 cmd/go: document GODEBUG=installgoroot=all
At the moment the only documentation is the release notes,
but everything mentioned in the release notes should have
proper documentation separate from them.

Change-Id: I9885962f6c6d947039b0be59b608385781479271
Reviewed-on: https://go-review.googlesource.com/c/go/+/462196
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
2023-01-17 16:11:26 +00:00
Russ Cox 66689c7d46 doc/go1.20: remove mention of arena goexperiment
The arena goexperiment contains code used inside Google in very
limited use cases that we will maintain, but the discussion on #51317
identified serious problems with the very idea of adding arenas to the
standard library. In particular the concept tends to infect many other
APIs in the name of efficiency, a bit like sync.Pool except more
publicly visible.

It is unclear when, if ever, we will pick up the idea and try to push
it forward into a public API, but it's not going to happen any time
soon, and we don't want users to start depending on it: it's a true
experiment and may be changed or deleted without warning.

The arena text in the release notes makes them seem more official
and supported than they really are, and we've already seen a couple
blog posts based on that erroneous belief. Delete the text to try to
set expectations better.

Change-Id: I4f6e328ac470a9cd410f5f722d0769ef62d5e5ba
Reviewed-on: https://go-review.googlesource.com/c/go/+/462355
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Eli Bendersky <eliben@google.com>
2023-01-17 15:26:07 +00:00
Russ Cox 145dd38471 archive/tar, archive/zip: document ErrInsecurePath and GODEBUG setting
These are mentioned in the release notes but not the actual doc comments.
Nothing should exist only in release notes.

Change-Id: I8d10f25a2c9b2677231929ba3f393af9034b777b
Reviewed-on: https://go-review.googlesource.com/c/go/+/462195
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-01-17 14:18:16 +00:00
Archana R 1c65b69bd1 runtime: fix performance regression in morestack_noctxt on ppc64
In the fix for 54332 the MOVD R1, R1 instruction was added to
morestack_noctxt function to set the SPWRITE bit. However, the
instruction MOVD R1, R1 results in or r1,r1,r1 which is a special
instruction on ppc64 architecture as it changes the thread priority
and can negatively impact performance in some cases.
More details on such similar nops can be found in Power ISA v3.1
Book II on Power ISA Virtual Environment architecture in the chapter
on Program Priority Registers and Or instructions.
Replacing this by OR R0, R1 has the same affect on setting SPWRITE as
needed by the first fix but does not affect thread priority and
hence does not cause the degradation in performance

Hash65536-64           2.81GB/s ±10%  16.69GB/s ± 0%  +494.44%
Fixes #57741

Change-Id: Ib912e3716c6afd277994d6c1c5b2891f82225d50
Reviewed-on: https://go-review.googlesource.com/c/go/+/461597
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Auto-Submit: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
2023-01-16 08:37:36 +00:00
Bryan Mills ebb572d82f Revert "internal/fsys: follow root symlink in fsys.Walk"
This reverts CL 448360 and adds a regression test for #57754.

Reason for revert: broke 'go list' in Debian's distribution of the Go toolchain

Fixes #57754.
Updates #50807.

Change-Id: I3e8b9126294c55f21572774b549fb28f29eded0f
Reviewed-on: https://go-review.googlesource.com/c/go/+/461959
Reviewed-by: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
2023-01-13 21:45:47 +00:00
Austin Clements 16cec4e7a0 doc/go1.20: mention build speed improvements
For #49569.
For #54202.

Change-Id: Iac45338bc4e45617e8ac7425076cf4cd0af157a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/461957
TryBot-Bypass: Austin Clements <austin@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2023-01-13 16:42:47 +00:00
Than McIntosh 643f463186 cmd/cover: remove go.mod from testdata subdir
Remove a superfluous go.mod file in one of the testdata subdirs; test
runs ok without it, no need for it to be there (can confuse tooling).

Change-Id: I3c43dd8ca557fdd32ce2f84cdb2427326a2dd35e
Reviewed-on: https://go-review.googlesource.com/c/go/+/461945
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-01-13 16:01:25 +00:00
Gopher Robot b3160e8bce [release-branch.go1.20] go1.20rc3
Change-Id: I87007947c075e8b90dd74bdf164b59e81487f6de
Reviewed-on: https://go-review.googlesource.com/c/go/+/461836
Reviewed-by: Heschi Kreinick <heschi@google.com>
Auto-Submit: Gopher Robot <gobot@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Run-TryBot: Gopher Robot <gobot@golang.org>
2023-01-12 17:16:08 +00:00
Carlos Amedee 9efc2e7f95 [release-branch.go1.20] all: merge master (245e95d) into release-branch.go1.20
Merge List:

+ 2023-01-11 245e95dfab go/types, types2: don't look up fields or methods when expecting a type
+ 2023-01-11 18625d9bec runtime: fix incorrect comment
+ 2023-01-11 6ad27161f8 cmd/compile: better error message for when a type is in a constraint but not the type set
+ 2023-01-10 76d39ae349 cmd/link, runtime: Apple libc atfork workaround take 3
+ 2023-01-10 0a0de0fc42 runtime: revert use of __fork to work around Apple atfork bugs
+ 2023-01-10 82f09b75ca os/exec: avoid leaking an exec.Cmd in TestWaitInterrupt
+ 2023-01-09 0202ad0b3a cmd/compile: prevent IsNewObject from taking quadratic time
+ 2023-01-09 64519baf38 cmd/compile/internal/pgo: add hint to missing start_line error
+ 2023-01-09 376076f3c6 runtime: skip TestCgoPprofCallback in short mode, don't run in parallel
+ 2023-01-09 0bbd67e52f runtime/pprof: document possibility of empty stacks
+ 2023-01-09 d9f23cfe78 runtime/pprof: improve output of TestLabelSystemstack
+ 2023-01-09 8232a09e3e sync/atomic: fix the note of atomic.Store
+ 2023-01-09 841c3eb166 all: fix typos in go file comments
+ 2023-01-06 f721fa3be9 syscall: skip TestUseCgroupFD if cgroupfs not mounted
+ 2023-01-06 76ec919237 net: fix typo in hosts.go
+ 2023-01-06 660d4815ea cmd/compile: describe how Go maps to wasm implementation
+ 2023-01-05 119f679a3b crypto/tls: fix typo in cacheEntry godoc
+ 2023-01-05 d50ea217f6 cmd/cover: fix problems with "go test -covermode=atomic sync/atomic"
+ 2023-01-04 bae7d772e8 doc/go1.20: fix links to new strings functions
+ 2023-01-04 4e7c838483 crypto/internal/boring: add dev.boringcrypto README.md text
+ 2023-01-04 46e3d9d12a cmd/compile: use "satisfies" (not "implements") for constraint errors
+ 2023-01-04 79cdecc852 cmd/gofmt: fix a typo in a comment
+ 2023-01-03 9955a7e9bb README.vendor: minor updates
+ 2023-01-03 d03231d9ce doc/go1.20: fix http.ResponseController example
+ 2023-01-03 cdc73f0679 .github: suggest using private browsing in pkgsite template

Change-Id: I73be496aa4163ad1d3a6cc8114f1a612968d4b10
2023-01-11 18:01:18 -05:00
Robert Findley 245e95dfab go/types, types2: don't look up fields or methods when expecting a type
As we have seen many times, the type checker must be careful to avoid
accessing named type information before the type is fully set up. We
need a more systematic solution to this problem, but for now avoid one
case that causes a crash: checking a selector expression on an
incomplete type when a type expression is expected.

For golang/go#57522

Change-Id: I7ed31b859cca263276e3a0647d1f1b49670023a9
Reviewed-on: https://go-review.googlesource.com/c/go/+/461577
Run-TryBot: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
2023-01-11 22:29:34 +00:00
zhengchaopu 18625d9bec runtime: fix incorrect comment
Fix incorrect comment for the runtime package.

Change-Id: Iab889eff0e9c622afbed959d32b8b5f0ed0bfebf
GitHub-Last-Rev: e9587868db
GitHub-Pull-Request: golang/go#57731
Reviewed-on: https://go-review.googlesource.com/c/go/+/461498
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Keith Randall <khr@google.com>
2023-01-11 22:26:01 +00:00
Robert Griesemer 6ad27161f8 cmd/compile: better error message for when a type is in a constraint but not the type set
While at it, also remove the word "constraint" in the detail explanation
of an unsatisfied constraint.

Fixes #57500.

Change-Id: I55dae1694de2cfdb434aeba9d4a3530af7aca8f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/460455
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
2023-01-11 17:10:19 +00:00
Russ Cox 76d39ae349 cmd/link, runtime: Apple libc atfork workaround take 3
CL 451735 worked around bugs in Apple's atfork handlers by calling
notify_is_valid_token and xpc_atfork_child at startup, so that init
code that wouldn't be safe in the child process would be warmed up in
the parent process instead, but xpc_atfork_child broke use of the xpc
library in Go programs, and xpc is internally used by various macOS
frameworks (#57263).

CL 459175 reverted that change, and then CL 459176 tried a new
approach: use __fork, which doesn't call any of the atfork handlers at all.
That worked, but an Apple engineer reviewing the change in private
email suggests that since __fork is not public API, it should be avoided.
The same engineer (with access to the source code for the xpc library)
suggests that the breakage in #57263 is caused by xpc_atfork_child
marking the library as unusable, expecting an imminent call to exec,
and that calling xpc_date_create_from_current instead would do the
necessary initialization without marking xpc as unusable.

CL 460475 reverted that change, to prepare for this one.

This CL goes back to the original “call functions to warm things up”
approach, replacing xpc_atfork_child with xpc_date_create_from_current.

The CL also updates cmd/link to use OS and SDK version 10.13.0 for
x86 macOS binaries, up from 10.9.0, also suggested by the Apple engineer.
Combined with the two warmup calls, this makes the fork hangs go away.
The minimum macOS version has been 10.13 High Sierra since Go 1.17,
so there should be no problem with writing that in the binaries too.

Fixes #33565.
Fixes #56784.
Fixes #57263.
Fixes #57577.

Change-Id: I20769d9daa1fe9ea930f8009481335f8a14dc21b
Reviewed-on: https://go-review.googlesource.com/c/go/+/460476
Auto-Submit: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2023-01-10 20:34:22 +00:00
Russ Cox 0a0de0fc42 runtime: revert use of __fork to work around Apple atfork bugs
An Apple engineer suggests that since __fork is not public API,
it would be better to use a different fix. With the benefit of source code,
they suggest using xpc_date_create_from_current instead of
xpc_atfork_child. The latter sets some flags that disable certain
functionality for the remainder of the process lifetime (expecting exec),
while the former should do the necessary setup.

Reverting the __fork fix in order to prepare a clean fix based
on CL 451735 using xpc_date_create_from_current.

This reverts commit c61d322d5f.

Change-Id: I2da293ff537237ffd2d40ad756d827c95c84635b
Reviewed-on: https://go-review.googlesource.com/c/go/+/460475
Auto-Submit: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2023-01-10 20:34:19 +00:00
Bryan C. Mills 82f09b75ca os/exec: avoid leaking an exec.Cmd in TestWaitInterrupt
In CL 436655 I added a GODEBUG setting to this test process to verify
that Wait is eventually called for every exec.Cmd before it becomes
unreachable. However, the cmdHang test helpers in
TestWaitInterrupt/Exit-hang and TestWaitInterrupt/SIGKILL-hang
intentially leak a subprocess in order to simulate a leaky third-party
program, as Go users might encounter in practical use.

To avoid tripping over the leak check, we call Wait on the leaked
subprocess in a background goroutine. Since we expect the process
running cmdHang to exit before its subprocess does, the call to Wait
should have no effect beyond suppressing the leak check.

Fixes #57596.
Updates #52580.
Updates #50436.

Change-Id: Ia4b88ea47fc6b605c27ca6d9d7669c874867a900
Reviewed-on: https://go-review.googlesource.com/c/go/+/460998
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-01-10 17:59:34 +00:00
Keith Randall 0202ad0b3a cmd/compile: prevent IsNewObject from taking quadratic time
As part of IsNewObject, we need to go from the SelectN[0] use of
a call to the SelectN[1] use of a call. The current code does this
by just looking through the block. If the block is very large,
this ends up taking quadratic time.

Instead, prepopulate a map from call -> SelectN[1] user of that call.
That lets us find the SelectN[1] user in constant time.

Fixes #57657

Change-Id: Ie2e0b660af5c080314f4f17ba2838510a1147f9e
Reviewed-on: https://go-review.googlesource.com/c/go/+/461080
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2023-01-09 22:50:08 +00:00
Michael Pratt 64519baf38 cmd/compile/internal/pgo: add hint to missing start_line error
Profiles only began adding Function.start_line in 1.20. If it is
missing, add a hint to the error message that they may need to profile a
build of the application built with a newer version of the toolchain.

Technically profiles are not required to come from Go itself (e.g., they
could be converted from perf), but in practice they most likely are.

Fixes #57674.

Change-Id: I87eca126d3fed0cff94bbb8dd748bd4652f88b12
Reviewed-on: https://go-review.googlesource.com/c/go/+/461195
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
2023-01-09 21:50:54 +00:00
Ian Lance Taylor 376076f3c6 runtime: skip TestCgoPprofCallback in short mode, don't run in parallel
Fixes #54778

Change-Id: If9aef0c06b993ef2aedbeea9452297ee9f11fa06
Reviewed-on: https://go-review.googlesource.com/c/go/+/460461
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
2023-01-09 20:30:17 +00:00
Austin Clements 0bbd67e52f runtime/pprof: document possibility of empty stacks
I spent quite a while determining the cause of empty stacks in
profiles and reasoning out why this is okay. There isn't a great place
to record this knowledge, but a documentation comment on
appendLocsForStack is better than nothing.

Updates #51550.

Change-Id: I2eefc6ea31f1af885885c3d96199319f45edb4ce
Reviewed-on: https://go-review.googlesource.com/c/go/+/460695
Reviewed-by: Felix Geisendörfer <felix.geisendoerfer@datadoghq.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
2023-01-09 20:25:19 +00:00
Austin Clements d9f23cfe78 runtime/pprof: improve output of TestLabelSystemstack
The current output of TestLabelSystemstack is a bit cryptic. This CL
improves various messages and hopefully simplifies the logic in the
test.

Simplifying the logic leads to three changes in possible outcomes,
which I verified by running the logic before and after this change
through all 2^4 possibilities (https://go.dev/play/p/bnfb-OQCT4j):

1. If a sample both must be labeled and must not be labeled, the test
now reports that explicitly rather than giving other confusing output.

2. If a sample must not be labeled but is, the current logic will
print two identical error messages. The new logic prints only one.

3. If the test finds no frames at all that it recognizes, but the
sample is labeled, it will currently print a confusing "Sample labeled
got true want false" message. The new logic prints nothing. We've seen
this triggered by empty stacks in profiles.

Fixes #51550. This bug was caused by case 3 above, where it was
triggered by a profile label on an empty stack. It's valid for empty
stacks to appear in a profile if we sample a goroutine just as it's
exiting (and that goroutine may have a profile label), so the test
shouldn't fail in this case.

Change-Id: I1593ec4ac33eced5bb89572a3ba7623e56f2fb3d
Reviewed-on: https://go-review.googlesource.com/c/go/+/460516
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Felix Geisendörfer <felix.geisendoerfer@datadoghq.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
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2023-01-09 20:25:17 +00:00
csuzhang 8232a09e3e sync/atomic: fix the note of atomic.Store
Change-Id: Id485d0f1e06febe97d1a770bc26c138d9613a7dd
GitHub-Last-Rev: e57dd3e1ab
GitHub-Pull-Request: golang/go#57679
Reviewed-on: https://go-review.googlesource.com/c/go/+/461076
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Keith Randall <khr@golang.org>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
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2023-01-09 18:21:12 +00:00
Marcel Meyer 841c3eb166 all: fix typos in go file comments
These typos were found by executing grep, aspell, sort, and uniq in
a pipe and searching the resulting list manually for possible typos.

    grep -r --include '*.go' -E '^// .*$' . | aspell list | sort | uniq

Change-Id: I56281eda3b178968fbf104de1f71316c1feac64f
GitHub-Last-Rev: e91c7cee34
GitHub-Pull-Request: golang/go#57669
Reviewed-on: https://go-review.googlesource.com/c/go/+/460767
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
2023-01-09 15:34:31 +00:00
Shengjing Zhu f721fa3be9 syscall: skip TestUseCgroupFD if cgroupfs not mounted
When building in schroot (for building Debian package),
the cgroupfs is not mounted in schroot (only sysfs is mounted).

Change-Id: Ieddac7b2f334d58d832f5d84d81af812badf3720
Reviewed-on: https://go-review.googlesource.com/c/go/+/460539
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Auto-Submit: Ian Lance Taylor <iant@google.com>
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Run-TryBot: Ian Lance Taylor <iant@google.com>
2023-01-06 18:22:52 +00:00
Ikko Eltociear Ashimine 76ec919237 net: fix typo in hosts.go
cannonical -> canonical

Change-Id: I656ea210d8ef6eaa85245cb8f463f6b4fd67e1a2
GitHub-Last-Rev: 5a93045add
GitHub-Pull-Request: golang/go#57633
Reviewed-on: https://go-review.googlesource.com/c/go/+/460756
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Damien Neil <dneil@google.com>
2023-01-06 17:00:29 +00:00
Keith Randall 660d4815ea cmd/compile: describe how Go maps to wasm implementation
Change-Id: Ie4d8e1ae9c4c6046d27a27a61ef1147bc0ff373c
Reviewed-on: https://go-review.googlesource.com/c/go/+/455715
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Richard Musiol <neelance@gmail.com>
Reviewed-by: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
Run-TryBot: Keith Randall <khr@golang.org>
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2023-01-06 16:58:43 +00:00
Tobias Klauser 119f679a3b crypto/tls: fix typo in cacheEntry godoc
Change-Id: Idcea184a5b0c205efd3c91c60b5d954424f37679
Reviewed-on: https://go-review.googlesource.com/c/go/+/460540
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
2023-01-05 19:33:00 +00:00
Than McIntosh d50ea217f6 cmd/cover: fix problems with "go test -covermode=atomic sync/atomic"
This patch fixes an elderly bug with "go test -covermode=atomic
sync/atomic". Change the cover tool to avoid adding an import of
sync/atomic when processing "sync/atomic" itself in atomic mode;
instead make direct calls to AddUint32/StoreUint32. In addition,
change the go command to avoid injecting an artificial import of
"sync/atomic" for sync/atomic itself.

Fixes #57445.

Change-Id: I8c8fbd0bcf26c8a8607d4806046f826296508c74
Reviewed-on: https://go-review.googlesource.com/c/go/+/459335
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2023-01-05 17:02:45 +00:00
Piers bae7d772e8 doc/go1.20: fix links to new strings functions
Links under strings package were linking to the bytes versions of the functions.

Change-Id: If6ebe37fede8e417f8683695783aa767bc01e9c7
GitHub-Last-Rev: 8849285122
GitHub-Pull-Request: golang/go#57579
Reviewed-on: https://go-review.googlesource.com/c/go/+/460458
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2023-01-04 21:15:31 +00:00
Russ Cox 4e7c838483 crypto/internal/boring: add dev.boringcrypto README.md text
Add the text from dev.boringcrypto's README making clear what
this code is and that it is unsupported.

Change-Id: Ie49e8ccff10436f5d27ed422f159b4899193c9a5
Reviewed-on: https://go-review.googlesource.com/c/go/+/460515
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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Reviewed-by: Than McIntosh <thanm@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
2023-01-04 19:58:48 +00:00
Robert Griesemer 46e3d9d12a cmd/compile: use "satisfies" (not "implements") for constraint errors
Per the latest spec, we distinguish between interface implementation
and constraint satisfaction. Use the verb "satisfy" when reporting
an error about failing constraint satisfaction.

This CL only changes error messages. It has no impact on correct code.

Fixes #57564.

Change-Id: I6dfb3b2093c2e04fe5566628315fb5f6bd709f17
Reviewed-on: https://go-review.googlesource.com/c/go/+/460396
Reviewed-by: Robert Griesemer <gri@google.com>
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2023-01-04 19:07:27 +00:00
Roland Illig 79cdecc852 cmd/gofmt: fix a typo in a comment
Change-Id: I34b2b9f9b70e39c872d5edbbda4de0fe330211f5
GitHub-Last-Rev: 723e36e11e
GitHub-Pull-Request: golang/go#57566
Reviewed-on: https://go-review.googlesource.com/c/go/+/460457
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2023-01-04 18:15:30 +00:00
Gopher Robot 32593a9192 [release-branch.go1.20] go1.20rc2
Change-Id: Ieb30cc96008bd705677e44983c68d4581706cc05
Reviewed-on: https://go-review.googlesource.com/c/go/+/460498
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2023-01-04 16:02:35 +00:00
Ian Lance Taylor 9955a7e9bb README.vendor: minor updates
Change-Id: Iaacc96e6302833019ebf7a82d5a1ae49f6ff1955
Reviewed-on: https://go-review.googlesource.com/c/go/+/460175
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2023-01-03 20:31:59 +00:00
Alexander Yastrebov d03231d9ce doc/go1.20: fix http.ResponseController example
Fixes #57162

Change-Id: I190810d702e503822265b12c56db69ec1093233c
GitHub-Last-Rev: e8b259d4b3
GitHub-Pull-Request: golang/go#57385
Reviewed-on: https://go-review.googlesource.com/c/go/+/458275
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
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2023-01-03 18:53:52 +00:00
Dan Peterson cdc73f0679 .github: suggest using private browsing in pkgsite template
I opened #54872 without considering my browser's extensions and one of
them ended up being the cause of my issue. This seems to be a common
error.

To help that, add a suggestion to use a private/incognito tab/window
to the pkgsite issue template when reproducing issues. This probably
would have been enough for me to figure things out before opening my
issue.

Updates #54872, #47213

Change-Id: Ic61a3462cb902c91554cf9432aaae1222c6a991e
Reviewed-on: https://go-review.googlesource.com/c/go/+/427962
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2023-01-03 18:52:47 +00:00
Heschi Kreinick eb598248ba [release-branch.go1.20] all: merge master (db36eca) into release-branch.go1.20
Merge List:

+ 2022-12-29 db36eca33c doc/go1.20: fix typos
+ 2022-12-29 642fd5f7ce go/types, types2: use strict comparability for type set intersection
+ 2022-12-28 9123221ccf misc/cgo/testsanitizers: run libfuzzer tests in temp directory
+ 2022-12-27 e870de9936 misc/cgo/testsanitizers: add libfuzzer tests
+ 2022-12-23 38cfb3be9d testing: rephrase the sentence about naming test files
+ 2022-12-23 1ba7341cb2 cmd/link, runtime: use a different section for Go libfuzzer counters
+ 2022-12-22 c61d322d5f runtime: call __fork instead of fork on darwin
+ 2022-12-22 6c9b661867 runtime: revert Apple libc atfork workaround
+ 2022-12-22 6d3139b203 misc/cgo/testshared: test build std in shared mode
+ 2022-12-22 de6abd7889 runtime/internal/startlinetest: work around shared buildmode linking issue
+ 2022-12-22 18baca6765 runtime/race: add build tag to internal amd64vN packages
+ 2022-12-22 13ed4f42f0 doc/go1.20: fix typo
+ 2022-12-21 fadd77c05b runtime/coverage: add missing file close in test support helper
+ 2022-12-21 c9a10d48a8 crypto/x509: return typed verification errors on macOS
+ 2022-12-21 2321abc5e9 archive/tar, archive/zip: revert documentation of ErrInsecurePath
+ 2022-12-21 458241f981 net/http/httputil: don't add X-Forwarded-{Host,Proto} after invoking Director funcs
+ 2022-12-21 58f6022eee syscall: don't use faccessat2 on android
+ 2022-12-21 78fc81070a net: use correct dns msg size
+ 2022-12-19 a5a4744250 os: reenable TestReaddirSmallSeek on windows
+ 2022-12-17 0b2ad1d815 cmd/compile: sign-extend the 2nd argument of the LoweredAtomicCas32 on loong64,mips64x,riscv64
+ 2022-12-16 8bcc490667 os/user,net: add -fno-stack-protector to CFLAGS
+ 2022-12-16 f4b42f5cb8 net/http: improve errors in TestCancelRequestWhenSharingConnection
+ 2022-12-16 24ac659a39 syscall, internal/poll: fall back to accept on linux-arm
+ 2022-12-16 3323dab1f4 os/exec: retry ETXTBSY errors in TestFindExecutableVsNoexec
+ 2022-12-15 628a1e7d3a doc/go1.20: fix typo
+ 2022-12-15 357ea85892 spec: fix typo
+ 2022-12-14 ea14d1b6e1 spec: document which recursive arrays and structs are valid/invalid
+ 2022-12-14 0b8add46ce doc/go1.20.html: pre-announce dropping Windows 7, 8, and friends
+ 2022-12-14 4f8bc6224b cmd/compile: desugar OCALLMETH->OCALLFUNC within devirtualization
+ 2022-12-14 5c682f94c6 spec: document illegal recursive type parameter lists
+ 2022-12-14 bd42aa86d3 spec: describe new semantics for comparable and constraint satisfaction
+ 2022-12-14 ffefcd360b spec: introduce notion of strict comparability
+ 2022-12-13 cb07765045 syscall: fix closing of reordered FDs in plan9 ForkExec
+ 2022-12-13 5ba98b9756 go/types, types2: report type mismatch error when conversion is impossible
+ 2022-12-13 61e2b8ec59 cmd/gc: test temp string comparison with all ops
+ 2022-12-12 b16e94d13d syscall: skip TestUseCgroupFD if cgroupfs mounted RO
+ 2022-12-12 27301e8247 syscall: fix shadowing bugs in forkAndExecInChild
+ 2022-12-12 6f7a95d25e sync: remove unused const
+ 2022-12-12 6b895d9eaa doc/go1.20: fix typo
+ 2022-12-12 c6ad9dc9b5 debug/buildinfo: check pointer size on buildinfo.Read
+ 2022-12-12 5dca7ed66f doc/go1.20: fix URL anchor
+ 2022-12-11 888047c310 cmd/compile: fix conditional move rule on PPC64
+ 2022-12-10 9b8750f53e os: skip size test in TestLstat if the file is a symlink
+ 2022-12-09 e8f78cb60c cmd/compile: fix conditional select rule
+ 2022-12-09 e76c87b191 doc: fix typo in 1.20 release notes
+ 2022-12-09 80f7484af7 os/user: zero-initialize C structs returned to Go
+ 2022-12-08 e738a2f19b go/types, types2: always rename type parameters during inference
+ 2022-12-08 8247b9f17a doc: fix typo
+ 2022-12-08 f368abb46e doc/go1.20: correct test binary -v flag value for test2json
+ 2022-12-08 7973b0e508 cmd/{go,cover,covdata}: fix 'package main' inconsistent handling
+ 2022-12-08 0aad4d3257 cmd/link: fix dynamic interpreter path for musl-based linux amd64
+ 2022-12-08 eaf0e3d465 runtime: remove arbitrary timeouts in finalizer tests
+ 2022-12-08 c8313d4fa8 cmd/go: deflake TestScript/test2json_interrupt
+ 2022-12-08 b9747e0e6b os/user: on AIX getpwuid_r seems to return -1 on overflow
+ 2022-12-07 9431237d77 internal/safefilepath: fix TestFromFS on Plan 9
+ 2022-12-07 7c7cd56870 cmd/go: in TestTerminalPassthrough, delay subprocess exit until the PTY has been read

Change-Id: I037343df0fe5b171b5f5726fcc55c01108d2563e
2023-01-03 12:21:39 -05:00
Xiao Cui db36eca33c doc/go1.20: fix typos
Change-Id: Ie2e583cba9e9bec7d642e323e77fb2d9b05dc7bc
Reviewed-on: https://go-review.googlesource.com/c/go/+/459780
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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2022-12-29 23:36:05 +00:00
Robert Griesemer 642fd5f7ce go/types, types2: use strict comparability for type set intersection
Fixes #57486.

Change-Id: I4b71199a724718886ce6d7a49e96a9ebdcbcf737
Reviewed-on: https://go-review.googlesource.com/c/go/+/459816
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2022-12-29 17:47:20 +00:00
Cherry Mui 9123221ccf misc/cgo/testsanitizers: run libfuzzer tests in temp directory
The libFuzzer generated binary by default writes failure input
into the current directory. Set cmd.Dir to the temporary directory
so it won't write to GOROOT when running the test.

Change-Id: I3e4ce7e3f845be5c9f09511c36e7a9a396eafad2
Reviewed-on: https://go-review.googlesource.com/c/go/+/459556
Reviewed-by: Than McIntosh <thanm@google.com>
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2022-12-28 15:34:23 +00:00
Cherry Mui e870de9936 misc/cgo/testsanitizers: add libfuzzer tests
Apparently we don't have tests for libfuzzer mode. Add some tests.

Updates #57449.

Change-Id: I813da3e71c6d6f15db31914b248db220b0b7041e
Reviewed-on: https://go-review.googlesource.com/c/go/+/459555
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2022-12-27 21:10:04 +00:00
Andrey Bozhko 38cfb3be9d testing: rephrase the sentence about naming test files
This updates the explanation about
naming test files to be a little more clear.

Fixes #57389

Change-Id: I9b3a8e2dae5e3ad398b55624e183809b7d90864c
GitHub-Last-Rev: 9ff81b74b2
GitHub-Pull-Request: golang/go#57399
Reviewed-on: https://go-review.googlesource.com/c/go/+/458435
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2022-12-23 17:16:59 +00:00
Cherry Mui 1ba7341cb2 cmd/link, runtime: use a different section for Go libfuzzer counters
Currently in libfuzzer mode, we put our counters in section
__sancov_cntrs. When linking with C/C++ code that also has fuzzer
counters, apparently the C linker combines our counters and their
counters and registers them together. But in the Go runtime we
also have code to register our counters. So the Go counters ended
up registered twice, causing problems.

Since we already have code to register our counters, put them in
a Go-specific section so it won't be combined with the C counters.

Fixes #57449.

Change-Id: If3d41735124e7e301572d4b7aecf7d057ac134c0
Reviewed-on: https://go-review.googlesource.com/c/go/+/459055
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2022-12-23 01:12:02 +00:00