As of CL 650835, the pidfd test child no longer sends SIGCHLD on exit.
Per clone(2), "If [the child termination] signal is specified as
anything other than SIGCHLD, then the parent process must specify the
__WALL or __WCLONE options when waiting for the child with wait(2)."
Align with this requirement.
For #71828.
Change-Id: I6a6a636c739e4a59abe1533fe429a433e8588939
Reviewed-on: https://go-review.googlesource.com/c/go/+/651415
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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TestEnvironConsistency logs the values of all the environment variables,
which can be quite large on some environments. This change limits the
output to just the variables that caused the test to fail.
Change-Id: Ie796b57ac2cc845093c73298058b720df344fa28
Reviewed-on: https://go-review.googlesource.com/c/go/+/650581
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
Relates to #71257. Since post-quantum TLS algorithms are enabled by default, we should warn about the possible bugs with legacy servers (see https://tldr.fail/)
Change-Id: I06a5d8a927497ea2141007b14a90af27e0891720
GitHub-Last-Rev: 476e6462df
GitHub-Pull-Request: golang/go#71865
Reviewed-on: https://go-review.googlesource.com/c/go/+/651036
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Overzealous security scanners don't like the Go 1.17 binary because they
think it has every 1.17 security vulnerability. base64-encode the binary
to hide from them.
I've also extended the instructions to make the binary easier to
reproduce.
Since we do the Go binary, we might as well do the C binary too, as it
apparently makes some virus scanners unhappy.
Fixes#71753.
For #71734.
For #71821.
Change-Id: I6a6a636cccbf5312522f52f27f74eded64048fb7
Reviewed-on: https://go-review.googlesource.com/c/go/+/651175
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Reviewed-by: Cherry Mui <cherryyz@google.com>
We used to generate register GC maps as an experimental approach
for asynchronous preemption, which later we chose not to take.
Most of the register GC map code are already removed. One
exception is that the ssa.Register type still contains a field
for the register map index. Remove it.
Change-Id: Ib177ebce9548aa5ffbcaedd4b507240ea7df8afe
Reviewed-on: https://go-review.googlesource.com/c/go/+/651076
Reviewed-by: David Chase <drchase@google.com>
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For #69735
Change-Id: Ide6b3077768a96b76078e5d4f6460596b8ff1560
Reviewed-on: https://go-review.googlesource.com/c/go/+/631756
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Keith Randall <khr@google.com>
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Avoid a spurious SIGCHLD the first time we start a process.
Fixes#71828
Change-Id: I744100d21bf6aaaaafc99bc5eec9f9f807a50682
Reviewed-on: https://go-review.googlesource.com/c/go/+/650835
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
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newAfterFuncContext has never been used, the only reason I can imagine
for its existence is to guarantee that the implementation is correct.
It is a small cleanup and make code more idiomatic.
Change-Id: I61ee213a9284f3c3bda7f91196f3a1604babd0f6
GitHub-Last-Rev: c08bd69ef3
GitHub-Pull-Request: golang/go#71856
Reviewed-on: https://go-review.googlesource.com/c/go/+/651015
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
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Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Now that riscv64 is only regabi, remove the entrypoint separation and
have runtime.memequal_varlen call runtime.memequal. Add a zero byte
length check and replace the equal and not equal exit paths with a
single exit path that conditions on length reaching zero.
Cq-Include-Trybots: luci.golang.try:gotip-linux-riscv64
Change-Id: Ida4e54378daa7fd423f759753eba04ce513a27cb
Reviewed-on: https://go-review.googlesource.com/c/go/+/648855
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
Add support for endbr64, which terminates an indirect branch in 64-bit
mode. This is effectively used to mark locations where an indirect branch
is permitted to land, when Indirect Branch Tracking (IBT) is enforced on
Intel CPUs.
Updates #66054
Change-Id: Ib898031711cfaaa6e05c197bfe727ded0bce6f52
Reviewed-on: https://go-review.googlesource.com/c/go/+/649215
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Make the errors we return when parsing an ECHConfig slightly more
verbose.
Fixes#71706
Change-Id: Id138fd9defec71ce492a490a71af4981cb9ede51
Reviewed-on: https://go-review.googlesource.com/c/go/+/650720
Auto-Submit: Roland Shoemaker <roland@golang.org>
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In the few obvious candidates that I found after a bit of grepping.
Change-Id: I36af79c46d29e4422bce1f43bbbac9db7de2001a
Reviewed-on: https://go-review.googlesource.com/c/go/+/650656
Reviewed-by: Alan Donovan <adonovan@google.com>
Auto-Submit: Alan Donovan <adonovan@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
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Change-Id: I8d7bbeebbf4a46f2fd8d630b1edbaf79b8ffccc5
Reviewed-on: https://go-review.googlesource.com/c/go/+/420114
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Joel Sing <joel@sing.id.au>
TryBot-Bypass: Joel Sing <joel@sing.id.au>
For #69735
Change-Id: I34ca2b027494525ab64f94beee89ca373a5031ae
Reviewed-on: https://go-review.googlesource.com/c/go/+/631615
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Mark Ryan <markdryan@rivosinc.com>
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
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We shouldn't drop the workaround in case we're running on an unpatched
kernel.
For #44272.
Change-Id: I6a6a636cb81c31856ac9b682e7d02fa1d8efa5d9
Reviewed-on: https://go-review.googlesource.com/c/go/+/644878
Reviewed-by: Ian Lance Taylor <iant@google.com>
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This change moves finBlockSize into mfinal.go and renames finblock to
finBlock.
Change-Id: I20a0bc3907e7b028a2caa5d2fe8cf3f76332c871
Reviewed-on: https://go-review.googlesource.com/c/go/+/650695
Auto-Submit: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Currently Make panics when passed a linker-allocated object. This is
inconsistent with both runtime.AddCleanup and runtime.SetFinalizer. Not
panicking in this case is important so that all pointers can be treated
equally by these APIs. Libraries should not have to worry where a
pointer came from to still make weak pointers.
Supporting this behavior is a bit complex for weak pointers versus
finalizers and cleanups. For the latter two, it means a function is
never called, so we can just drop everything on the floor. For weak
pointers, we still need to produce pointers that compare as per the API.
To do this, copy the tiny lock-free trace map implementation and use it
to store weak handles for "immortal" objects. These paths in the
runtime should be rare, so it's OK if it's not incredibly fast, but we
should keep the memory footprint relatively low (at least not have it be
any worse than specials), so this change tweaks the map implementation a
little bit to ensure that's the case.
Fixes#71726.
Change-Id: I0c87c9d90656d81659ac8d70f511773d0093ce27
Reviewed-on: https://go-review.googlesource.com/c/go/+/649460
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
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This CL is the result of pulling the thread of some unused parameter
diagnostics reported by gopls: remove some variables holding partial
type argument expression information that are no longer needed.
Change-Id: Idfc1d0271252ce9bc5b75feb86e30dd2f6dd550b
Reviewed-on: https://go-review.googlesource.com/c/go/+/650775
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Auto-Submit: Robert Findley <rfindley@google.com>
ObjectID was a misnaming of OutputID from cacheprog's initial
implementation. It was maintained for compatibility with existing
cacheprog users in 1.24 but can be removed in 1.25.
Updates #64876
Change-Id: I8ff53bc581c16b7739e1cfbaa8bd35d285d3231d
Reviewed-on: https://go-review.googlesource.com/c/go/+/649435
Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
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Change-Id: I50404dbf0f10ee59007bd0dc5353f38e056a0430
Reviewed-on: https://go-review.googlesource.com/c/go/+/650655
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
While looking at the SSA of following code, i noticed
that these rules do not work properly, and the types
are loaded indirectly through an itab, instead of statically.
type M interface{ M() }
type A interface{ A() }
type Impl struct{}
func (*Impl) M() {}
func (*Impl) A() {}
func main() {
var a M = &Impl{}
a.(A).A()
}
Change-Id: Ia275993f81a2e7302102d4ff87ac28586023d13c
GitHub-Last-Rev: 4bfc901917
GitHub-Pull-Request: golang/go#71784
Reviewed-on: https://go-review.googlesource.com/c/go/+/649500
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: Keith Randall <khr@google.com>
This change improves escape analysis by attempting to
deduce static values for the len and cap parameters,
allowing allocations to be made on the stack.
Change-Id: I1161019aed9f60cf2c2fe4d405da94ad415231ac
GitHub-Last-Rev: d78c1b4ca5
GitHub-Pull-Request: golang/go#71693
Reviewed-on: https://go-review.googlesource.com/c/go/+/649035
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Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
The support we provide is tightly scoped, and is not safe for generic
usage elsewhere in the standard library.
Change-Id: Ic38d5c4b416859ab30e2b4a3fc977ba8a2535ae8
Reviewed-on: https://go-review.googlesource.com/c/go/+/647815
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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Fixes#71122
Change-Id: Icaf27842f4a42e11eea4bd2203eba5d56610c196
Reviewed-on: https://go-review.googlesource.com/c/go/+/649275
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
Commit-Queue: Alan Donovan <adonovan@google.com>
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The go command assumes that GOMODCACHE is immutable. As an example of
one place the assumption is made, the modindex won't stat the files in
GOMODCACHE when getting the cache key for the index entry and just uses
the path of the module in the modcache (basically the module's name and
version). Explicitly reject overlays affecting GOMODCACHE to avoid
surprising and incorrect behavior.
For #71783
For #71075
Change-Id: I21dd5d39d71037de473b09ac8482a1867864e11f
Reviewed-on: https://go-review.googlesource.com/c/go/+/650475
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Reviewed-by: Robert Findley <rfindley@google.com>
To make it more idiomatic.
Change-Id: If48ae9931908e515df7f23185aac6f84aac72084
GitHub-Last-Rev: 525ed5031a
GitHub-Pull-Request: golang/go#71838
Reviewed-on: https://go-review.googlesource.com/c/go/+/650595
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
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Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Commit-Queue: Robert Griesemer <gri@google.com>
RtlIsDosDeviceName_U is specifically designed to detect Windows devices.
We were using GetFullPathName to do this, but it's not the right API
for the job, as it is slower and allocates more memory.
goos: windows
goarch: amd64
pkg: path/filepath
cpu: Intel(R) Core(TM) i7-10850H CPU @ 2.70GHz
│ old.txt │ new.txt │
│ sec/op │ sec/op vs base │
IsLocal-12 5.685µ ± 59% 1.853µ ± 12% -67.41% (p=0.000 n=10)
│ old.txt │ new.txt │
│ B/op │ B/op vs base │
IsLocal-12 496.00 ± 0% 48.00 ± 0% -90.32% (p=0.000 n=10)
│ old.txt │ new.txt │
│ allocs/op │ allocs/op vs base │
IsLocal-12 10.000 ± 0% 6.000 ± 0% -40.00% (p=0.000 n=10)
Change-Id: Ib40ad7a90ab93cf7051c8d6becbce4d287f10f4e
Reviewed-on: https://go-review.googlesource.com/c/go/+/650578
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Reviewed-by: Damien Neil <dneil@google.com>
The existing code for recover from deferrangefunc was broken in
several ways.
1. the code following a deferrangefunc call did not check the return
value for an out-of-band value indicating "return now" (i.e., recover
was called)
2. the returned value was delivered using a bespoke ABI that happened
to match on register-ABI platforms, but not on older stack-based
ABI.
3. the returned value was the wrong width (1 word versus 2) and
type/value(integer 1, not a pointer to anything) for deferrangefunc's
any-typed return value (in practice, the OOB value check could catch
this, but still, it's sketchy).
This -- using the deferreturn lookup method already in place for
open-coded defers -- turned out to be a much-less-ugly way of
obtaining the desired transfer of control for recover().
TODO: we also could do this for regular defer, and delete some code.
Fixes#71675
Change-Id: If7d7ea789ad4320821aab3b443759a7d71647ff0
Reviewed-on: https://go-review.googlesource.com/c/go/+/650476
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
There is no need for syscall.OpenFile to truncate newly created files.
Some special Windows files, like the NUL device, can't be
truncated, so we should avoid truncating unless it is really necessary.
Fixes#71752.
Change-Id: I8238048594f706f6a5281053d55cfe3dc898828d
Reviewed-on: https://go-review.googlesource.com/c/go/+/650276
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And use it to unify all codes that need parent/closure checking.
Change-Id: I0b0aa1b007598668dff2c4bee31e21f0fb3830ce
Reviewed-on: https://go-review.googlesource.com/c/go/+/650315
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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CL 630696 changes budget for once-called closures, making them more
inlinable. However, when recursive inlining involve both the closure and
its parent, the inliner goes into an infinite loop:
parent (a closure) -> closure -> parent -> ...
The problem here dues to the closure name mangling, causing the inlined
checking condition failed, since the closure name affects how the
linker symbol generated.
To fix this, just prevent the closure from inlining its parent into
itself, avoid the infinite inlining loop.
Fixes#71680
Change-Id: Ib27626d70f95e5f1c24a3eb1c8e6c3443b7d90c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/649656
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By moving the bit field, we can reduce the miniExpr size by
8 bytes, reducing the sizes of Exprs embedding this type.
Hopefully we get a few types to a lower memory size class.
Change-Id: I4b1d4471cf905f998b26d235980e40ca91446f45
GitHub-Last-Rev: 6dea0bd27c
GitHub-Pull-Request: golang/go#71823
Reviewed-on: https://go-review.googlesource.com/c/go/+/650435
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Auto-Submit: Robert Griesemer <gri@google.com>
Add some linknames back, therefore sonic (github.com/bytedance/sonic) can work correctly.
Fixes#71672
Change-Id: Iae86c837d8a714855106a26766aa08b128e17e58
GitHub-Last-Rev: 4de0a48717
GitHub-Pull-Request: golang/go#71673
Reviewed-on: https://go-review.googlesource.com/c/go/+/648537
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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OpenRoot is expected to be called with a trusted path,
and does not attempt to defend against symlinks in that path.
Fixes#71806
Change-Id: Ib8b2e123e323d22d5c23ed9f711d21995139a7ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/650355
Auto-Submit: Damien Neil <dneil@google.com>
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O_DIRECTORY is not available on all platforms, as described at
https://nodejs.org/docs/latest/api/fs.html#file-open-constants .
On Windows, only O_APPEND, O_CREAT, O_EXCL, O_RDONLY, O_RDWR,
O_TRUNC, O_WRONLY, and UV_FS_O_FILEMAP are available.
Fixes#71758
Change-Id: Iacc890ba9a30dcd75eb746ec324fa0c3e368048e
GitHub-Last-Rev: a0160e8fc8
GitHub-Pull-Request: golang/go#71770
Reviewed-on: https://go-review.googlesource.com/c/go/+/650015
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
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Change-Id: I27e86c221da7f541c4823f501801e02942c9a829
Reviewed-on: https://go-review.googlesource.com/c/go/+/649935
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Change-Id: I9434a8d04ca4282da86cb2622a6a541db3961a2b
GitHub-Last-Rev: f28908e338
GitHub-Pull-Request: golang/go#71763
Reviewed-on: https://go-review.googlesource.com/c/go/+/649955
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Previously the error returned by chmod has not actually been used.
Change-Id: I97c947a2278a084c58784fd100630ce2a54bfb03
GitHub-Last-Rev: ddc60a044f
GitHub-Pull-Request: golang/go#71744
Reviewed-on: https://go-review.googlesource.com/c/go/+/649418
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Currently, exported Go functions with no parameters generate C functions
with an empty parameter list. In C, a function with an empty parameter
list can accept any number of arguments, whereas a function with a single
void parameter explicitly declares that it takes no arguments.
To align the generated C functions with their Go prototypes, update the
code generation to explicitly include a void parameter for functions
with no parameters.
Fixes#68411
Change-Id: Iab9456aa0236200bf21d1181a2e18e82869df63f
GitHub-Last-Rev: 6ff21a98df
GitHub-Pull-Request: golang/go#70981
Reviewed-on: https://go-review.googlesource.com/c/go/+/638635
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Rather than repeating ourselves, use a single const block and a single
var block. Also separate architectures for readability.
Change-Id: Iab5bda3514eae0c9b5bb16a99277fd4b95f272aa
Reviewed-on: https://go-review.googlesource.com/c/go/+/649658
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Joel Sing <joel@sing.id.au>
Provides, on one line, an approximation of P scheduling throughput: how
many times execute() was called for a given P. Said another way: how
many RUNNABLE to RUNNING transitions have happened for this P.
This allows discerning whether a P actually did anything, and how it
compares to other periods of a processes operation.
This should be useful to analyze (kernel) scheduler hiccups.
Investigators will want to subtract the tick values from subsequent
schedtrace lines to get a rate of schedulings. I've opted to add a space
around the first and last element as well to make it more uniform to do
the proposed subtracting with tools like AWK.
Change-Id: I69d6dae1509ad285d43799f38bcaa3aa0fb2352e
Reviewed-on: https://go-review.googlesource.com/c/go/+/635636
Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Nicolas Hillegeer <aktau@google.com>
Check presence of LSE support on ARM64 chip if we targeted it at compile
time.
Related to #69124
Updates #60905Fixes#71411
Change-Id: I65e899a28ff64a390182572c0c353aa5931fc85d
Reviewed-on: https://go-review.googlesource.com/c/go/+/645795
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Fixes a typo to correctly describe the hash bits of the control word.
Change-Id: Id3c2ae0bd529e579a95258845f9d8028e23d10d2
GitHub-Last-Rev: 1baa81be5d
GitHub-Pull-Request: golang/go#71730
Reviewed-on: https://go-review.googlesource.com/c/go/+/649416
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Michael Pratt
qmuntal
Thomas Vaillant
Cherry Mui
Julian Zhu
Jorropo
Ian Lance Taylor
Jes Cok
limeidan
Joel Sing
Roland Shoemaker
Daniel Martí
Meng Zhuo
Julian Zhu
Michael Anthony Knyszek
Rob Findley
Dan Peterson
alirezaarzehgar
Mateusz Poliwczak
qiulaidongfeng
Michael Matloob
David Chase
Cuong Manh Le
段仪
Damien Neil
Zxilly
cuishuang
Luka Krmpotić
Mauri de Souza Meneguzzo
Nicolas Hillegeer
Andrey Bokhanko
Jakub Ciolek
Artyom Litovets