Before this patch, on a system that only supports IPv6, we would
get EAFNOSUPPORT and decide that MPTCP might be available later.
The effect is that every socket tries to get MPTCP. If the system
does not support MPTCP, every socket call turns into two system calls.
Also avoid the uname if MPTCP is not supported.
For #56539
Change-Id: I628b44eda83b455f5493a9dd59076f1acea2f65b
Reviewed-on: https://go-review.googlesource.com/c/go/+/616335
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Updates #66779
Updates #69577
Change-Id: I0dea5a30aab87aaa443e7e6646c1d07aa865ac1c
GitHub-Last-Rev: 1cea46deb3
GitHub-Pull-Request: golang/go#69719
Reviewed-on: https://go-review.googlesource.com/c/go/+/616696
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Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
This commit amends package errors' documentation to include a reference
to the https://go.dev/blog/go1.13-errors blog article. The motivation
is multi-fold, but chiefly the article includes good information about
error philosophy (e.g., when to wrap), and developers who have come to
Go in the intervening five years are likely not have seen this article
at all given the nature of blog publishing and post fanfare. The
material deserves a promotion in visibility.
Change-Id: Ia6f8307784521dd59de3a3d638dbc0a7fcd445e6
GitHub-Last-Rev: 20980dd507
GitHub-Pull-Request: golang/go#69698
Reviewed-on: https://go-review.googlesource.com/c/go/+/616341
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
The source code quoted tailscale's development fork, which is only a
development fork. The canonical github url is actually
github.com/wireguard/wireguard-go, but that's really just a mirror of
git.zx2c4.com/wireguard-go, and in any case, the proper go package name
is golang.zx2c4.com/wireguard, so just use that.
Change-Id: Ifa63c1c538989b3fcebcf06d1c238469bc73724d
Reviewed-on: https://go-review.googlesource.com/c/go/+/616736
Auto-Submit: Jason Donenfeld <Jason@zx2c4.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Instead of using a select on a closed channel to generate one bit
of randomness, use math/rand/v2.
Change-Id: I36d294f17b9f5b437ca50e1c95da97bbe632c0a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/616475
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Some comments that describe the behavior being tested don't match the
test logic.
Fix the comments to match test logic and documented behavior.
Change-Id: I065d9d9069fa00bb865209f48e112456384c2b9d
Reviewed-on: https://go-review.googlesource.com/c/go/+/616338
Auto-Submit: Quim Muntal <quimmuntal@gmail.com>
Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
Reviewed-by: David Chase <drchase@google.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
This prevents false sharing, which makes a large difference on machines
with several NUMA nodes, such as this dual socket server:
cpu: Intel(R) Xeon(R) Gold 6338 CPU @ 2.00GHz
│ sec/op │ sec/op vs base │
ParallelGetRandom-128 0.7944n ± 5% 0.4503n ± 0% -43.31% (p=0.000 n=10)
│ B/s │ B/s vs base │
ParallelGetRandom-128 4.690Gi ± 5% 8.272Gi ± 0% +76.38% (p=0.000 n=10)
Change-Id: Id4421e9a4c190b38aff0be4c59e9067b0a38ccd7
Reviewed-on: https://go-review.googlesource.com/c/go/+/616535
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Auto-Submit: Jason Donenfeld <Jason@zx2c4.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
This CL adds a local only VCS lookup for Mercurial.
It fixes a bug in pkg.go by passing in the repo directory to
the LookupLocal function instead of the module directory. It could be
the case that a binary is built in a subdirectory of the repo.
For: #50603
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Change-Id: Ic36b5a361a8ba3b0ba1a6968cde5f5263c9c8dd0
Reviewed-on: https://go-review.googlesource.com/c/go/+/609155
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We know the type (*Interface), so we can use the generic atomic.Pointer.
This change also makes sure that concurrent use of SetLogger also
causes a panic, currently it races (Load, then Store).
Change-Id: I6fae5ce0587b37eede2060342c3fcd0cde4386ff
GitHub-Last-Rev: 0c053be03e
GitHub-Pull-Request: golang/go#69701
Reviewed-on: https://go-review.googlesource.com/c/go/+/616516
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Fixes#69680
Change-Id: I73b0506c7a3245ba282cffabe47543f5fce86692
GitHub-Last-Rev: 4c6a1a4c70
GitHub-Pull-Request: golang/go#69684
Reviewed-on: https://go-review.googlesource.com/c/go/+/616263
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Auto-Submit: Ian Lance Taylor <iant@google.com>
The os package already has a function for retrieving an environment
variable with a ok boolean, we don't need to use syscall directly.
Change-Id: Ife873e7245261ec765b628e31a0e7a7bc4dff934
GitHub-Last-Rev: bc5f30bf56
GitHub-Pull-Request: golang/go#69700
Reviewed-on: https://go-review.googlesource.com/c/go/+/616342
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Updates #69680
Change-Id: If80d43da493cb035164ede4a2cadcbec5831feaf
GitHub-Last-Rev: b3853e9487
GitHub-Pull-Request: golang/go#69682
Reviewed-on: https://go-review.googlesource.com/c/go/+/616262
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Fixes#68488
Change-Id: I39aba22cdfe8ca0bbe69db7c64f1bca75fa067fa
Reviewed-on: https://go-review.googlesource.com/c/go/+/598875
Reviewed-by: Keith Randall <khr@golang.org>
Commit-Queue: Ian Lance Taylor <iant@google.com>
Reviewed-by: Keith Randall <khr@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Linux 6.11 supports calling getrandom() from the vDSO. It operates on a
thread-local opaque state allocated with mmap using flags specified by
the vDSO.
Opaque states are allocated in chunks, ideally ncpu at a time as a hint,
rounding up to as many fit in a complete page. On first use, a state is
assigned to an m, which owns that state, until the m exits, at which
point it is given back to the pool.
Performance appears to be quite good:
│ sec/op │ sec/op vs base │
Read/4-16 222.45n ± 3% 27.13n ± 6% -87.80% (p=0.000 n=10)
│ B/s │ B/s vs base │
Read/4-16 17.15Mi ± 3% 140.61Mi ± 6% +719.82% (p=0.000 n=10)
Fixes#69577.
Change-Id: Ib6f44e8f2f3940c94d970eaada0eb566ec297dc7
Reviewed-on: https://go-review.googlesource.com/c/go/+/614835
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Auto-Submit: Jason Donenfeld <Jason@zx2c4.com>
Reviewed-by: Paul Murphy <murp@ibm.com>
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Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
In go/types, move field down in environment struct, rename it to
exprPos, and document use.
Updates #69673.
Change-Id: I355af1237f8cd731ad9706e6a5fce34b314978cc
Reviewed-on: https://go-review.googlesource.com/c/go/+/616316
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Remove them them from types2.
Updates #69673.
Change-Id: I7843f6da1edf3a19f85c61706104d173e04088d3
Reviewed-on: https://go-review.googlesource.com/c/go/+/616261
Reviewed-by: Alan Donovan <adonovan@google.com>
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Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
There were a few Mercurial command line uses that could cause the wrong
data to be used:
* The log command needs '-r.' to specify the currently checked out commit
* HGPLAIN is needed to disable optional output on commands
* '-S' is needed to for the 'status' command to recurse into any subrepos
The most likely issue to be seen here was the use of '-l1' instead of
'-r.', which prints the most recent commit instead of the current checkout.
Since tagging in Mercurial creates a new commit, this basically means the
data was wrong for every tagged build.
This also adds an hgrc config file to the test, with config options to
keep the time and author values fixed. It's what's used in the Mercurial
test harness to keep the commit hashes stable, and allows the tests here to
also match the time and the revision ID, to prevent regressing.
Fixes#63532
Change-Id: I5b9971ce87c83431ec77e4a002bdc33fcf393856
GitHub-Last-Rev: 62c9db0a28
GitHub-Pull-Request: golang/go#63557
Reviewed-on: https://go-review.googlesource.com/c/go/+/535377
Reviewed-by: Bryan Mills <bcmills@google.com>
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Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
Auto-Submit: Sam Thanawalla <samthanawalla@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
This moves the implementation of Scope.LookupParent into
environment.lookupScope where it encapsulates the use of
the current environment's position. At least in types2,
that position can be removed, because it is never set.
With this, the type checker doesn't rely on position
information anymore for looking up objects during type
checking.
LookupParent is still called from tests and some go/types
code.
Updates #69673.
Change-Id: I7159ba95b71cf33cc3b16058aa19327e166224b1
Reviewed-on: https://go-review.googlesource.com/c/go/+/616337
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Auto-Submit: Robert Griesemer <gri@google.com>
A step towards removing reliance on Scope.LookupParent.
Updates #69673.
Change-Id: I9fdd4b08ea600b531b90895ac779fdc580ff00e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/616259
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Commit-Queue: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
In extremely rare cases of receiver base types of the form
C.foo where C refers to an `import "C"`, we needed Scope.Contains
to lookup the file scope containing the "C" import.
Replace the position-dependent Scope.Contains with an explicit
scope search that doesn't require a position.
Also, make the surrounding code match more closely between
go/types and types2.
Change-Id: Ic007108928dd8b382a06e2bbf09ef8bd6bd0ff36
Reviewed-on: https://go-review.googlesource.com/c/go/+/616256
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Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
We rename it to iIIEncoding to reflect the fact that instructions
that use this encoding take two integer registers. This change
will allow us to add a new encoding for I-type instructions that
take a single integer register. This new encoding will be used for
instructions that modify CSRs.
Change-Id: Ic507d0020e18f6aa72353f4d3ffcd0e868261e7a
Reviewed-on: https://go-review.googlesource.com/c/go/+/614355
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Joel Sing <joel@sing.id.au>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
Reviewed-by: David Chase <drchase@google.com>
On Arch Linux with gdb version 15.1, the test for TestGdbAutotmpTypes print
the following output,
----
~/src/go/src/runtime
$ go test -run=TestGdbAutotmpTypes -v
=== RUN TestGdbAutotmpTypes
=== PAUSE TestGdbAutotmpTypes
=== CONT TestGdbAutotmpTypes
runtime-gdb_test.go:78: gdb version 15.1
runtime-gdb_test.go:570: gdb output:
Loading Go Runtime support.
Target 'exec' cannot support this command.
Breakpoint 1 at 0x46e416: file /tmp/TestGdbAutotmpTypes750485513/001/main.go, line 8.
This GDB supports auto-downloading debuginfo from the following URLs:
<https://debuginfod.archlinux.org>
Enable debuginfod for this session? (y or [n]) [answered N; input not from terminal]
Debuginfod has been disabled.
To make this setting permanent, add 'set debuginfod enabled off' to .gdbinit.
[New LWP 355373]
[New LWP 355374]
[New LWP 355375]
[New LWP 355376]
Thread 1 "a.exe" hit Breakpoint 1, main.main () at /tmp/TestGdbAutotmpTypes750485513/001/main.go:8
8 func main() {
9 var iface interface{} = map[string]astruct{}
All types matching regular expression "astruct":
File runtime:
[]main.astruct
bucket<string,main.astruct>
hash<string,main.astruct>
main.astruct
typedef hash<string,main.astruct> * map[string]main.astruct;
typedef noalg.[8]main.astruct noalg.[8]main.astruct;
noalg.map.bucket[string]main.astruct
runtime-gdb_test.go:587: could not find []main.astruct; in 'info typrs astruct' output
!!! FAIL
exit status 1
FAIL runtime 0.273s
$
----
In the back trace for "File runtime", each output lines does not end with
";" anymore, while in test we check the string with it.
While at it, print the expected string with "%q" instead of "%s" for
better error message.
Fixes#67089
Change-Id: If6019ee68c0d8e495c920f98568741462c7d0fd0
Reviewed-on: https://go-review.googlesource.com/c/go/+/598135
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
The timer code is careful to ensure that if stop/reset is called
while a timer is being run, we cancel the run. However, the code
failed to ensure that in that case stop/reset returned true,
meaning that the timer had been stopped. In the racing case
stop/reset could see that t.when had been set to zero,
and return false, even though the timer had not and never would fire.
Fix this by tracking whether a timer run is in progress,
and using that to reliably detect that the run was cancelled,
meaning that stop/reset should return true.
Fixes#69312
Change-Id: I78e870063eb96650638f12c056e32c931417c84a
Reviewed-on: https://go-review.googlesource.com/c/go/+/611496
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
When using the -x or -n option, we were printing the external
linker error messages from producing the dynimport file.
This was confusing because those linker errors are unimportant and
ignored; only the linker exit status matters, and failure doesn't
drop the build.
Change cmd/go -x to not print the error messages, and to instead
print the linker command line with a notation of whether the
link succeeded or failed.
Fixes#68743
Change-Id: Ie3cc58d2d6a7d33d7baa6f1273b4fb5a7deee7e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/615916
Reviewed-by: Michael Matloob <matloob@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Fixes#66107
Change-Id: I19b466e3fb17557cf4f198b7fd8c13e774d854b1
Reviewed-on: https://go-review.googlesource.com/c/go/+/615095
Auto-Submit: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Carlos Amedee <carlos@golang.org>
Commit-Queue: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Fixes#69637.
Change-Id: Ie612b4df50f42f2786b22fb7a756949530f9178e
Reviewed-on: https://go-review.googlesource.com/c/go/+/616235
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Reviewed-by: Ian Lance Taylor <iant@google.com>
One is a test of unsafe.String usage, which was broken before CL 610738
was merged.
The other is trying to improve coverage of "near collision" scenarios in
the HashTrieMap where only the last few bits differ. This is intended to
catch off-by-one errors in iterating down the tree.
For #69534.
Change-Id: I3f302e148e81269a50e93b5edf83cafc2d291098
Reviewed-on: https://go-review.googlesource.com/c/go/+/614475
Auto-Submit: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Use sync.OnceFunc and sync.OnceValue to simplify the code.
Change-Id: Ie47e0444c2b9d3260f6ef94cdc6ee8ee5bcf9f71
GitHub-Last-Rev: 520afbec2a
GitHub-Pull-Request: golang/go#69634
Reviewed-on: https://go-review.googlesource.com/c/go/+/616037
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: David Chase <drchase@google.com>
Use sync.OnceFunc to simplify the code and to reduce global variables.
Change-Id: I7676339177e082c5be93dcf8121e379a6a7de912
GitHub-Last-Rev: f796c49260
GitHub-Pull-Request: golang/go#69633
Reviewed-on: https://go-review.googlesource.com/c/go/+/615920
Reviewed-by: David Chase <drchase@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Change-Id: I56b40a9d2ff85fdbc0d170aec686f1868176e068
GitHub-Last-Rev: 9424faf0f8
GitHub-Pull-Request: golang/go#69578
Reviewed-on: https://go-review.googlesource.com/c/go/+/614556
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Zxilly Chou <zxilly@outlook.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: David Chase <drchase@google.com>
Replaced the manual byte skipping logic with io.CopyN
to improve performance and reduce memory allocation.
This change simplifies the code by directly discarding
the bytes read, enhancing readability and efficiency.
Change-Id: Id11496d072fb554c394947d08e63616ca48ecab4
GitHub-Last-Rev: dc5f836cc7
GitHub-Pull-Request: golang/go#69619
Reviewed-on: https://go-review.googlesource.com/c/go/+/615716
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Carlos Amedee <carlos@golang.org>
The old calculation just looked whether PC was within a page of a vDSO
symbol. This doesn't work because the vDSO .text might span two whole
pages, with trampolines and such redirecting PC around between them.
This manifests itself with the new vDSO getrandom() function, where on
PowerPC, the trampoline is quite far away from the actual C function it
jumps into. The effect is that the signal handler doesn't know it's
interrupting a vDSO call and forgets to restore g to R30, resulting in a
crash.
Fix this by storing the start and end of the LOAD section from the
program headers. We could be more specific and parse out the .text
section, but PT_LOAD is good enough and appears to work well.
Change-Id: I3cf16955177eedb51e28b3b1a0191b32c3327a42
Reviewed-on: https://go-review.googlesource.com/c/go/+/616015
Auto-Submit: Jason Donenfeld <Jason@zx2c4.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Change-Id: Ifbd33881280d88c00df9b2c4e20f0127aca55799
GitHub-Last-Rev: 5b42bc612c
GitHub-Pull-Request: golang/go#69336
Reviewed-on: https://go-review.googlesource.com/c/go/+/610563
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Previously, the Checker.allowVersion method would use a token.Pos
to try to infer which file of the current package the checker
was "in". This proved fragile when type-checking syntax that
had been modified or synthesized and whose positions were invalid.
This change records the effective version in the checker state
(checker.environment.version). Just like other aspects of the
environment, the version changes from one file to the next
and must be saved and restored with each check.later closure.
Similarly, declInfo captures and temporarily reinstates
the effective version when checking each object.
+ Test of position independence in go/types and types2
+ Test of panic avoidance in go/types
Fixesgolang/go#69477Fixesgolang/go#69338
Change-Id: Ic06f9d88151c64a4f7848f8942d08e3c312cdd6f
Reviewed-on: https://go-review.googlesource.com/c/go/+/613735
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Alan Donovan <adonovan@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
The SSA backend currently only handle struct with up to 4 fields. Thus,
there are different operations corresponding to number fields of the
struct.
This CL generalizes these with just one OpStructMake, allow struct types
with arbitrary number of fields.
However, the ssa.MaxStruct is still kept as-is, and future CL will
increase this value to optimize large structs.
Updates #24416
Change-Id: I192ffbea881186693584476b5639394e79be45c5
Reviewed-on: https://go-review.googlesource.com/c/go/+/611075
Reviewed-by: Keith Randall <khr@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: David Chase <drchase@google.com>
In Android version 11 and earlier, pidfd-related system calls
are not allowed by the seccomp policy, which causes crashes due
to SIGSYS signals.
Fixes#69065
Change-Id: Ib29631639a5cf221ac11b4d82390cb79436b8657
GitHub-Last-Rev: aad6b3b32c
GitHub-Pull-Request: golang/go#69543
Reviewed-on: https://go-review.googlesource.com/c/go/+/614277
Auto-Submit: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
The go1.24 release notes say that go1.22.6 is the
minimum bootstraps required,
the go team also use go1.22.6 bootstraps in testing,
so if there's a problem with using an older version,
automated testing won't uncover it.
Now enforce this in dist to avoid
release notes that do not match reality, which can be confusing.
For #64751
Change-Id: Icd2f8a47b2bbb2d7c3dab9be9a228f43b9630063
GitHub-Last-Rev: 425cd7f03c
GitHub-Pull-Request: golang/go#69168
Reviewed-on: https://go-review.googlesource.com/c/go/+/609762
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Calling getrandom() with a zero length is actually valid and useful:
- Calling getrandom(..., 0, 0) will block until the RNG is initialized.
- Calling getrandom(..., 0, GRND_NONBLOCK) will query whether the RNG
is initialized.
So instead of short circuiting execution for these circumstances, pass
this through to the syscall.
Change-Id: I15178f087908a2d8be6c020a1ef800cc0a074742
Reviewed-on: https://go-review.googlesource.com/c/go/+/615315
Run-TryBot: Jason Donenfeld <Jason@zx2c4.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Auto-Submit: Jason Donenfeld <Jason@zx2c4.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
(I noticed the one mistake in hashtriemap.go and figured I'd clean up
others.)
Change-Id: I4ade424b400056f161bc6c9c2838ba1f96b1f6bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/615675
Auto-Submit: Brad Fitzpatrick <bradfitz@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
For #66832
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Change-Id: I58e20fe0b8e38dd9383d1df334acaa3a2abad756
Reviewed-on: https://go-review.googlesource.com/c/go/+/607237
Reviewed-by: Michael Matloob <matloob@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Sam Thanawalla <samthanawalla@google.com>
The SignPSS hash override happened after the boringcrypto block, meaning
if a boringcrypto user passed a hash in the PSSOptions which did not
match the hash argument, it wouldn't be overriden. This change moves the
check above the boring block to make sure the override is honored.
Thanks to Quim Muntal of Microsoft for spotting this issue.
Change-Id: I05082a84ccb1863798ac6eae7a15cf4d1e59f12d
Reviewed-on: https://go-review.googlesource.com/c/go/+/614276
Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: David Chase <drchase@google.com>
Fix a regression introduced in CL 572396 causing goroutine stacks not
getting null terminated.
This bug impacts callers that reuse the []StackRecord slice for multiple
calls to GoroutineProfile. See https://github.com/felixge/fgprof/issues/33
for an example of the problem.
Add a test case to prevent similar regressions in the future. Use null
padding instead of null termination to be consistent with other profile
types and because it's less code to implement. Also fix the
ThreadCreateProfile code path.
Fixes#69243
Change-Id: I0b9414f6c694c304bc03a5682586f619e9bf0588
Reviewed-on: https://go-review.googlesource.com/c/go/+/609815
Reviewed-by: Tim King <taking@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Fix a regression introduced in CL 598515 causing runtime.MutexProfile
stack traces to omit their root frames.
In most cases this was merely causing the `runtime.goexit` frame to go
missing. But in the case of runtime._LostContendedRuntimeLock, an empty
stack trace was being produced.
Add a test that catches this regression by checking for a stack trace
with the `runtime.goexit` frame.
Also fix a separate problem in expandFrame that could cause
out-of-bounds panics when profstackdepth is set to a value below 32.
There is no test for this fix because profstackdepth can't be changed at
runtime right now.
Fixes#69335
Change-Id: I1600fe62548ea84981df0916d25072c3ddf1ea1a
Reviewed-on: https://go-review.googlesource.com/c/go/+/611615
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Nick Ripley <nick.ripley@datadoghq.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
