Change-Id: Ib93f2b565e5271dfa3c3ca5d040ef24269c47cf8
GitHub-Last-Rev: 3f1da518a4
GitHub-Pull-Request: golang/go#68584
Reviewed-on: https://go-review.googlesource.com/c/go/+/601036
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
This change allows the tracer to be reentrant by restructuring the
internals such that writing an event is atomic with respect to stack
growth. Essentially, a core set of functions that are involved in
acquiring a trace buffer and writing to it are all marked nosplit.
Stack growth is currently the only hidden place where the tracer may be
accidentally reentrant, preventing the tracer from being used
everywhere. It already lacks write barriers, lacks allocations, and is
non-preemptible. This change thus makes the tracer fully reentrant,
since the only reentry case it needs to handle is stack growth.
Since the invariants needed to attain this are subtle, this change also
extends the debugTraceReentrancy debug mode to check these invariants as
well. Specifically, the invariants are checked by setting the throwsplit
flag.
A side benefit of this change is it simplifies the trace event writing
API a good bit: there's no need to actually thread the event writer
through things, and most callsites look a bit simpler.
Change-Id: I7c329fb7a6cb936bd363c44cf882ea0a925132f3
Reviewed-on: https://go-review.googlesource.com/c/go/+/587599
Reviewed-by: Austin Clements <austin@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Replace reflect.DeepEqual with slices.Equal/maps.Equal, which is
much faster.
Clean up some unnecessary helper functions.
Change-Id: I9b94bd43886302b9b327539ab065a435ce0d75d9
GitHub-Last-Rev: b9ca21f165
GitHub-Pull-Request: golang/go#67607
Reviewed-on: https://go-review.googlesource.com/c/go/+/587936
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Replace reflect.DeepEqual with slices.Equal/maps.Equal, which is
much faster.
Change-Id: I62ad60a66e28cfb2bb49c36037bafd4b9d201e88
GitHub-Last-Rev: 79554baddb
GitHub-Pull-Request: golang/go#67611
Reviewed-on: https://go-review.googlesource.com/c/go/+/587818
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Replace reflect.DeepEqual with slices.Equal which is much faster.
Change-Id: I299db6f998738174983731f08c1021346b87dfaa
GitHub-Last-Rev: 44ca9015d6
GitHub-Pull-Request: golang/go#67613
Reviewed-on: https://go-review.googlesource.com/c/go/+/587938
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Replace reflect.DeepEqual with slices.Equal/maps.Equal, which is
much faster.
Also remove some unecessary helper functions.
Change-Id: I3e4fa2938fed1598278c9e556cd4fa3b9ed3ad6d
GitHub-Last-Rev: 69bb43fc6e
GitHub-Pull-Request: golang/go#67603
Reviewed-on: https://go-review.googlesource.com/c/go/+/587815
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Replace reflect.DeepEqual with slices.Equal/maps.Equal, which is
much faster.
Change-Id: Id9cb550884da817da96befdeccfecb3325fb4414
GitHub-Last-Rev: 7d64d78feb
GitHub-Pull-Request: golang/go#67612
Reviewed-on: https://go-review.googlesource.com/c/go/+/587819
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Replace reflect.DeepEqual with slices.Equal/maps.Equal, which is
much faster.
Change-Id: I54600fb63a56460c11d3d5af9072da585e31b1a2
GitHub-Last-Rev: 08c1445ad5
GitHub-Pull-Request: golang/go#67606
Reviewed-on: https://go-review.googlesource.com/c/go/+/587816
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
The Go release notes are served on multiple domains (go.dev,
golang.google.cn, tip.golang.org, localhost:8080 and so on), so links
pointing to the Go website itself need to be relative to work in all
those contexts.
Caught by a test in x/website. The next CL adds the same test to this
repository so these kinds of problems are caught sooner and with less
friction.
For #68545.
Fixes#68575.
Change-Id: I08056b98968c77a1d0ed93b63fccfbe41274ec8f
Reviewed-on: https://go-review.googlesource.com/c/go/+/600656
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Add support for detecting the DIT feature on ARM64 processors. This
mirrors https://go.dev/cl/597377, but using the platform specific
semantics.
Updates #66450
Change-Id: Ia107e3e3369de7825af70823b485afe2f587358e
Reviewed-on: https://go-review.googlesource.com/c/go/+/598335
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Replace reflect.DeepEqual with slices.Equal, which is much faster.
Remove some redundant helper functions.
Change-Id: I51b32a3d0c3fc5ad0d3b6ff0dd03f39c507e5762
GitHub-Last-Rev: e21f46d4a0
GitHub-Pull-Request: golang/go#67609
Reviewed-on: https://go-review.googlesource.com/c/go/+/587937
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
Also clarify the permissions of created files,
and note that CopyFS will not overwrite files.
Update a few places in documentation to use 0oXXX for octal consts.
For #62484
Change-Id: I208ed2bde250304bc7fac2b93963ba57037e791e
Reviewed-on: https://go-review.googlesource.com/c/go/+/600775
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
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Replace reflect.DeepEqual with slices.Equal, which is much faster.
Change-Id: Ia93cc153d1f71ce92656129843be8dadcefbbca3
GitHub-Last-Rev: 0af0cc4205
GitHub-Pull-Request: golang/go#67610
Reviewed-on: https://go-review.googlesource.com/c/go/+/587817
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Commit-Queue: Ian Lance Taylor <iant@google.com>
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Change-Id: Ied098312399d2d6557ebf0ee294ca0e71dfa677b
GitHub-Last-Rev: 82f914e857
GitHub-Pull-Request: golang/go#68565
Reviewed-on: https://go-review.googlesource.com/c/go/+/600655
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Change-Id: Ia191daf8e748f17dcea6038166504fb50e7ddb0d
Reviewed-on: https://go-review.googlesource.com/c/go/+/589535
Auto-Submit: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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For #49884
Change-Id: I1623201c47c820a152773d2f43d0072a1466d3bf
Reviewed-on: https://go-review.googlesource.com/c/go/+/588118
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Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Commit-Queue: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Follow up review in CL 597535.
Updates #54846
Change-Id: Idf586552a22bbc6710c0888f046df0a5d1f0ce4a
Reviewed-on: https://go-review.googlesource.com/c/go/+/597537
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
By using cgo.Incomplete to represent not-in-heap type.
While at it, also removing the type conversions tests, since they could
not be present without //go:notinheap pragma.
Fixes#54846
Change-Id: I5ee2a4b6498d4100c9770ed7bd62f52623e42526
Reviewed-on: https://go-review.googlesource.com/c/go/+/597536
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Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
CL 388538 removed unused -G=0 node types.
However, the code for checking not-in-heap types for map and channel
type was also removed, which is likely not intentional.
This CL restores the check, porting removed code to noder.
Updates #54846
Change-Id: I2995836b90e36d2684197fefc9829fddfffe8585
Reviewed-on: https://go-review.googlesource.com/c/go/+/597535
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@google.com>
So the bounds check which are eliminated during late fuse pass could be
detected correctly.
Fixes#67329
Change-Id: Id7992fbb8c26e0d43e7db66a0a3a2c0d9ed937a8
Reviewed-on: https://go-review.googlesource.com/c/go/+/598635
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Follow up discussion in CL 594575.
The wrapping in "any" is only necessary if either casType or tagType is
an interface, as "==" in this situation is implemented by upconverting
to an interface anyway.
Change-Id: I73da771d25685a23eec612ac696965c892db4764
Reviewed-on: https://go-review.googlesource.com/c/go/+/596555
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Pull in the latest published version of github.com/google/pprof
as part of the continuous process of keeping Go's dependencies
up to date.
For #36905.
[git-generate]
cd src/cmd
go get github.com/google/pprof@v0.0.0-20240722153945-304e4f0156b8
go mod tidy
go mod vendor
Change-Id: If009cff7f2d99ec58315102963cbe07b6739c09a
Reviewed-on: https://go-review.googlesource.com/c/go/+/600596
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
CL 600436 moved runtime/internal/sys to internal/runtime/sys and updated
TestNewReleaseRebuildsStalePackagesInGOPATH in part accordingly. This is
the other part that's needed for it to pass.
For #65355.
Change-Id: I26cff96c15caf185a4ee2c8fb31ec6c877ab87e2
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest
Reviewed-on: https://go-review.googlesource.com/c/go/+/600595
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
For atomic AND and OR operations on memory, we currently have two
views of the op. One just does the operation on the memory and returns
just a memory. The other does the operation on the memory and returns
the old value (before having the logical operation done to it) and
memory.
Update #61395
These two type differently, and there's currently some confusion in
our rules about which is which. Use different names for the two
different flavors so we don't get them confused.
Change-Id: I07b4542db672b2cee98169ac42b67db73c482093
Reviewed-on: https://go-review.googlesource.com/c/go/+/594976
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Nicolas Hillegeer <aktau@google.com>
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Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
When there are multiple declarations of a function, ensure that
those declarations at least agree on the size/alignment of arguments
and return values.
It's hard to be stricter given existing code and situations where
arguments differ only by typedefs. For instance:
int usleep(unsigned);
int usleep(useconds_t);
Fixes#67699.
Change-Id: I3b4b17afee92b55f9e712b4590ec608ab1f7ac91
Reviewed-on: https://go-review.googlesource.com/c/go/+/588977
Auto-Submit: Keith Randall <khr@golang.org>
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Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
An InlMark "read" can't make an otherwise dead store live. Without this
CL, we sometimes zero an object twice in succession because we think
there is a reader in between.
Kind of challenging to make a test for this. The second zeroing has the
same instruction on the same line number, so codegen tests can't see it.
Fixes#67957
Change-Id: I7fb97ebff50d8eb6246fc4802d1136b7cc76c45f
Reviewed-on: https://go-review.googlesource.com/c/go/+/592615
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@google.com>
x86 is better at storing constant ints than constant floats.
(It uses a constant directly in the instruction stream, instead of
loading it from a constant global memory.)
Noticed as part of #67957
Change-Id: I9b7b586ad8e0fe9ce245324f020e9526f82b209d
Reviewed-on: https://go-review.googlesource.com/c/go/+/592596
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The Go 1.24 development tree has opened. This is a time to update
all golang.org/x/... module versions that contribute packages to the
std and cmd modules in the standard library to latest master versions.
For #36905.
[git-generate]
go install golang.org/x/build/cmd/updatestd@latest
go install golang.org/x/tools/cmd/bundle@latest
updatestd -goroot=$(pwd) -branch=master
Change-Id: I5a012af9f041f79ab4d5b30569a154e0c2d1617e
Reviewed-on: https://go-review.googlesource.com/c/go/+/600535
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Various functions in binary_test.go were missing some t.Helper() calls,
so this adds them in.
Change-Id: I0e5894e3c3cf72627203694a32adca51fe1563f5
GitHub-Last-Rev: b28c9255b3
GitHub-Pull-Request: golang/go#63897
Reviewed-on: https://go-review.googlesource.com/c/go/+/539135
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Keith Randall <khr@google.com>
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Reviewed-by: qiu laidongfeng2 <2645477756@qq.com>
Auto-Submit: Keith Randall <khr@golang.org>
Cleanup and friction reduction
For #65355.
Change-Id: Ia14c9dc584a529a35b97801dd3e95b9acc99a511
Reviewed-on: https://go-review.googlesource.com/c/go/+/600436
Reviewed-by: Keith Randall <khr@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
Currently internal/trace/testdata contains three debugging tools which
were written early in the trace rewrite for debugging. Two of these are
completely redundant with go tool trace -d=1 and go tool trace -d=2. The
only remaining one landed in the last cycle and could easily also be
another debug mode.
This change thus merges gotraceeventstats into go tool trace as a new
debug mode, and updates the debug mode flag (-d) to accept a string,
giving each mode a more descriptive name.
Change-Id: I170f30440691b81de846b4e247deb3d0982fc205
Reviewed-on: https://go-review.googlesource.com/c/go/+/593975
Reviewed-by: Michael Pratt <mpratt@google.com>
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Return errors by UserConfigDir and UserCacheDir when XDG environment
variables contain relative paths.
Fixes#68470
Change-Id: Ib36b56d73b066e002023be55ecfe74d5c0eedb15
GitHub-Last-Rev: c03f371a04
GitHub-Pull-Request: golang/go#68471
Reviewed-on: https://go-review.googlesource.com/c/go/+/598655
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Auto-Submit: Ian Lance Taylor <iant@golang.org>
Since CL 523275, outerfn is always non-nil.
Change-Id: I42cfff90546e506e04a74fb4f754a25f1eadddc9
Reviewed-on: https://go-review.googlesource.com/c/go/+/598636
Reviewed-by: Than McIntosh <thanm@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
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Since CL 522318, all closures are now hidden. Thus this CL removes all
codes that worries about hidden vs non-hidden closures.
Change-Id: I1ea124168c76cedbfc4053d2f150937a382aa330
Reviewed-on: https://go-review.googlesource.com/c/go/+/523275
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Reviewed-by: Than McIntosh <thanm@google.com>
The GNU/kFreeBSD project has been canceled.
https://wiki.debian.org/Debian_GNU/kFreeBSD
For #3533
Change-Id: I30990fced48e1ba43e1e59806379eb97bac3ab6c
Reviewed-on: https://go-review.googlesource.com/c/go/+/596937
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Multiple Ms can offer Events with identical timestamps. The Reader
edits those so the timestamps are strictly increasing, but it needs a
way to break the tie. Use something deterministic (such as the order of
the batches), rather than map iteration order.
Updates #68277
Change-Id: I4a1f70c1669ce1c9b52d09e2bc99acbc831ef9a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/596355
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Auto-Submit: Rhys Hiltner <rhys.hiltner@gmail.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
The current memmove implementation uses REP MOVSB to copy data larger than
2KB when the useAVXmemmove global variable is false and the CPU supports
the ERMS feature.
This feature is currently only enabled on CPUs in the Sandy Bridge (Client)
, Sandy Bridge (Server), Ivy Bridge (Client), and Ivy Bridge (Server)
microarchitectures.
For modern Intel CPU microarchitectures that support the ERMS feature, such
as Ice Lake (Server), Sapphire Rapids , REP MOVSB achieves better
performance than the AVX-based copy currently implemented in memmove.
Benchstat result:
goos: linux
goarch: amd64
pkg: runtime
cpu: Intel(R) Xeon(R) Gold 6348 CPU @ 2.60GHz
│ ./old.txt │ ./new.txt │
│ sec/op │ sec/op vs base │
Memmove/2048-2 25.24n ± 0% 24.27n ± 0% -3.84% (p=0.000 n=10)
Memmove/4096-2 44.87n ± 0% 33.16n ± 1% -26.11% (p=0.000 n=10)
geomean 33.65n 28.37n -15.71%
│ ./old.txt │ ./new.txt │
│ B/s │ B/s vs base │
Memmove/2048-2 75.56Gi ± 0% 78.59Gi ± 0% +4.02% (p=0.000 n=10)
Memmove/4096-2 85.01Gi ± 0% 115.05Gi ± 1% +35.34% (p=0.000 n=10)
geomean 80.14Gi 95.09Gi +18.65%
Fixes#66958
Change-Id: I1fafd1b51a16752f83ac15047cf3b29422a79d5d
GitHub-Last-Rev: 89cf5af32b
GitHub-Pull-Request: golang/go#66959
Reviewed-on: https://go-review.googlesource.com/c/go/+/580735
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Change-Id: I4550ce3135b3cd675010a3701618e9350f282453
GitHub-Last-Rev: d2e52f1496
GitHub-Pull-Request: golang/go#68519
Reviewed-on: https://go-review.googlesource.com/c/go/+/599535
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Rob Pike <r@golang.org>
Fixes#68340
Change-Id: I65037be6961e9ec720537713cb3f23ab9f5f8459
GitHub-Last-Rev: fadcb299c3
GitHub-Pull-Request: golang/go#68341
Reviewed-on: https://go-review.googlesource.com/c/go/+/597075
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Rob Pike <r@golang.org>
Fixes#64280
Change-Id: I1ad84d85b666a2ef52dc6ecdecd508b4e7fe24a6
GitHub-Last-Rev: 6242027261
GitHub-Pull-Request: golang/go#68524
Reviewed-on: https://go-review.googlesource.com/c/go/+/599575
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Change-Id: Ibc861e7b2aebc8fd1e0ba15d8d35ae0ecfe7747e
Reviewed-on: https://go-review.googlesource.com/c/go/+/599996
Reviewed-by: Damien Neil <dneil@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>
