crypto/internal/nistec: Avo port of p256_asm_amd64.s
This implementation utilizes the same registers found in the reference
implementation, aiming to produce a minimal semantic diff between the
Avo-generated output and the original hand-written assembly.
To verify the Avo implementation, the reference and Avo-generated
assembly files are fed to `go tool asm`, capturing the debug output into
corresponding temp files. The debug output contains supplementary
metadata (line numbers, instruction offsets, and source file references)
that must be removed in order to obtain a semantic diff of the two
files. This is accomplished via a small utility script written in awk.
The reference assembly file does not specify a frame size for a number
of the defined assembly functions. Avo automatically infers the frame
size when generating the TEXT directive, leading to a diff on those
lines.
This implementation utilizes the same registers found in the reference
implementation, aiming to produce a minimal semantic diff between the
Avo-generated output and the original hand-written assembly.
To verify the Avo implementation, the reference and Avo-generated
assembly files are fed to `go tool asm`, capturing the debug output into
corresponding temp files. The debug output contains supplementary
metadata (line numbers, instruction offsets, and source file references)
that must be removed in order to obtain a semantic diff of the two
files. This is accomplished via a small utility script written in awk.
The reference assembly file does not specify a frame size for some of
the defined assembly functions. Avo automatically infers the frame size
when generating TEXT directives, leading to a diff on those lines.
This implementation utilizes the same registers found in the reference
implementation, aiming to produce a minimal semantic diff between the
Avo-generated output and the original hand-written assembly.
To verify the Avo implementation, the reference and Avo-generated
assembly files are fed to `go tool asm`, capturing the debug output into
corresponding temp files. The debug output contains supplementary
metadata (line numbers, instruction offsets, and source file references)
that must be removed in order to obtain a semantic diff of the two
files. This is accomplished via a small utility script written in awk.
The reference assembly file does not specify a frame size for some of
the defined assembly functions. Avo automatically infers the frame size
when generating TEXT directives, leading to a diff on those lines. Some
metadata not included in the reference assembly has also been added,
which leads to a diff in the lines where that parameter symbol is
referenced.
This implementation utilizes the same registers found in the reference
implementation, aiming to produce a minimal semantic diff between the
Avo-generated output and the original hand-written assembly.
To verify the Avo implementation, the reference and Avo-generated
assembly files are fed to `go tool asm`, capturing the debug output into
corresponding temp files. The debug output contains supplementary
metadata (line numbers, instruction offsets, and source file references)
that must be removed in order to obtain a semantic diff of the two
files. This is accomplished via a small utility script written in awk.
Metadata not found in the reference assembly file has been added to one
parameter symbol, resulting in a single line diff.
This implementation utilizes the same registers found in the reference
implementation, aiming to produce a minimal semantic diff between the
Avo-generated output and the original hand-written assembly.
To verify the Avo implementation, the reference and Avo-generated
assembly files are fed to `go tool asm`, capturing the debug output into
corresponding temp files. The debug output contains supplementary
metadata (line numbers, instruction offsets, and source file references)
that must be removed in order to obtain a semantic diff of the two
files. This is accomplished via a small utility script written in awk.
This implementation utilizes the same registers found in the reference
implementation, aiming to produce a minimal semantic diff between the
Avo-generated output and the original hand-written assembly.
To verify the Avo implementation, the reference and Avo-generated
assembly files are fed to `go tool asm`, capturing the debug output into
corresponding temp files. The debug output contains supplementary
metadata (line numbers, instruction offsets, and source file references)
that must be removed in order to obtain a semantic diff of the two
files. This is accomplished via a small utility script written in awk.
Garrett Bodley [Fri, 28 Jun 2024 04:46:32 +0000 (00:46 -0400)]
crypto/sha256: Avo port of sha256block_amd64.s
This implementation utilizes the same registers found in the reference
implementation, aiming to produce a minimal semantic diff between the
Avo-generated output and the original hand-written assembly.
To verify the Avo implementation, the reference and Avo-generated
assembly files are fed to `go tool asm`, capturing the debug output into
corresponding temp files. The debug output contains supplementary
metadata (line numbers, instruction offsets, and source file references)
that must be removed in order to obtain a semantic diff of the two
files. This is accomplished via a small utility script written in awk.
Roland Shoemaker [Sat, 31 Aug 2024 04:11:09 +0000 (21:11 -0700)]
crypto/internal/boring: disable LFS64 interfaces
Comment out the definition in the libcrypto I/O code which enables
the LFS64 interfaces. We don't use any of the I/O bits and pieces, and
it's outside of the FIPS module, and it fixes some breakage in certain
scenarios.
Kir Kolyshkin [Wed, 4 Sep 2024 02:32:40 +0000 (19:32 -0700)]
cmd/link/internal/ld: simplify gobuildTestdata
Drop the second argument, which is is always a one-time temporary
directory, thus it can be created right here.
Change-Id: I73e5be2ccd4bddec249c7cb2a8ff9242d99f7e20
Reviewed-on: https://go-review.googlesource.com/c/go/+/610037
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Commit-Queue: Ian Lance Taylor <iant@golang.org>
Change-Id: I72a0ea4bd44a2f671e032bffa1facf84822a90f2
Reviewed-on: https://go-review.googlesource.com/c/go/+/610599
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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CL 402595 changes all usages of 16 bytes hash to 32 bytes hash by using
notsha256.
However, since CL 454836, notsha256 is not necessary anymore, so this CL
reverts those changes to 16 bytes hash using cmd/internal/hash package.
Updates #51940
Updates #64751
Change-Id: Ic015468ca4a49d0c3b1fb9fdbed93fddef3c838f
Reviewed-on: https://go-review.googlesource.com/c/go/+/610598
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
CL 402595 changes all usages of 20 bytes hash to 32 bytes hash by using
notsha256.
However, since CL 454836, notsha256 is not necessary anymore, so this CL
reverts those changes to 20 bytes hash using cmd/internal/hash package.
Updates #51940
Updates #64751
Change-Id: Icb08d5a0d8032a3c4d050ff7b2298d31c483b88b
Reviewed-on: https://go-review.googlesource.com/c/go/+/610597 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Keith Randall <khr@google.com>
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CL 402595 used notsha256 to prevent the compiler from depending on
cgo-based implementations of sha1 and sha256.
However, since CL 454836, cmd is built with CGO_ENABLED=0, which
will disable boringcrypto. Thus all usages of notsha256 is not necessary
anymore.
Updates #51940
Updates #64751
Change-Id: I503090f7a2efb5723e8a79523b143dc7cdb4edd0
Reviewed-on: https://go-review.googlesource.com/c/go/+/610596
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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To be used in compiler toolchain instead of notsha256.
Change-Id: Iceeacb6df7dfa7111ec98f070eba8e27a4ddbe8b
Reviewed-on: https://go-review.googlesource.com/c/go/+/610595 Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Keith Randall <khr@google.com>
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Alan Donovan [Wed, 4 Sep 2024 17:14:17 +0000 (13:14 -0400)]
all: fix printf(var) mistakes detected by latest printf checker
These will cause build failures once we vendor x/tools.
In once case I renamed a function err to errf to indicate
that it is printf-like.
Updates golang/go#68796
Change-Id: I04d57b34ee5362f530554b7e8b817f70a9088d12
Reviewed-on: https://go-review.googlesource.com/c/go/+/610739
Commit-Queue: Alan Donovan <adonovan@google.com> Reviewed-by: Robert Findley <rfindley@google.com>
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Auto-Submit: Alan Donovan <adonovan@google.com>
Michael Anthony Knyszek [Wed, 4 Sep 2024 16:46:33 +0000 (16:46 +0000)]
unique: don't retain uncloned input as key
Currently the unique package tries to clone strings that get stored in
its internal map to avoid retaining large strings.
However, this falls over entirely due to the fact that the original
string is *still* stored in the map as a key. Whoops. Fix this by
storing the cloned value in the map instead.
This change also adds a test which fails without this change.
Change-Id: I1a6bb68ed79b869ea12ab6be061a5ae4b4377ddb
Reviewed-on: https://go-review.googlesource.com/c/go/+/610738 Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
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Michael Anthony Knyszek [Wed, 4 Sep 2024 03:08:26 +0000 (03:08 +0000)]
internal/weak: shade pointer in weak-to-strong conversion
There's a bug in the weak-to-strong conversion in that creating the
*only* strong pointer to some weakly-held object during the mark phase
may result in that object not being properly marked.
The exact mechanism for this is that the new strong pointer will always
point to a white object (because it was only weakly referenced up until
this point) and it can then be stored in a blackened stack, hiding it
from the garbage collector.
This "hide a white pointer in the stack" problem is pretty much exactly
what the Yuasa part of the hybrid write barrier is trying to catch, so
we need to do the same thing the write barrier would do: shade the
pointer.
Added a test and confirmed that it fails with high probability if the
pointer shading is missing.
Fixes #69210.
Change-Id: Iaae64ae95ea7e975c2f2c3d4d1960e74e1bd1c3f
Reviewed-on: https://go-review.googlesource.com/c/go/+/610396
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
In rare situations, like during same-sized grows, the source map for
maps.Clone may be overloaded (has more than 6.5 entries per
bucket). This causes the runtime to allocate a larger bucket array for
the destination map than for the source map. The maps.Clone code
walks off the end of the source array if it is smaller than the
destination array.
This is a pretty simple fix, ensuring that the destination bucket
array is never longer than the source bucket array. Maybe a better fix
is to make the Clone code handle shorter source arrays correctly, but
this fix is deliberately simple to reduce the risk of backporting this
fix.
Fixes #69110
Change-Id: I824c93d1db690999f25a3c43b2816fc28ace7509
Reviewed-on: https://go-review.googlesource.com/c/go/+/609757 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> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
This CL adds trunc,ceil,floor tests for large exact float.
Change-Id: Ib7ffec1d2d50d2ac955398a3dd0fd06d494fcf4f
Reviewed-on: https://go-review.googlesource.com/c/go/+/601095
Auto-Submit: Keith Randall <khr@golang.org>
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Change-Id: Ic4ab5520a08a5a997f1c3d13c6d5f80c0521e45c
GitHub-Last-Rev: 6d2ac307bbd0ba7d50830ad8b879c00cc3a7242b
GitHub-Pull-Request: golang/go#69197
Reviewed-on: https://go-review.googlesource.com/c/go/+/610056
Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Ian Lance Taylor <iant@google.com>
Wei Fu [Mon, 2 Sep 2024 02:40:39 +0000 (10:40 +0800)]
runtime: update comment for golinkname
containerd deleted unsafe, golinkname usage from whole project in
the https://github.com/containerd/containerd/pull/10611. This patch is
to delete contained name in the comment.
Change-Id: Ide55ad9c65b3b622650a0b5813a7817306e87d3f
Reviewed-on: https://go-review.googlesource.com/c/go/+/609996
Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Ian Lance Taylor <iant@google.com>
qmuntal [Mon, 19 Aug 2024 13:14:23 +0000 (15:14 +0200)]
os/user: User.GroupIds shouldn't error on users with no groups
On Windows, the User.GroupIds currently errors out if the user has no
groups. This is incorrect, as the user may not be a member of any groups
as demonstrated by the new TestGroupIdsTestUser test.
Cq-Include-Trybots: luci.golang.try:gotip-windows-amd64-longtest,gotip-windows-arm64
Change-Id: I436aa6214f2b98ef98dfb6064caec3d682b3f3d2
Reviewed-on: https://go-review.googlesource.com/c/go/+/606675 Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Alex Brainman <alex.brainman@gmail.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Ian Lance Taylor [Tue, 3 Sep 2024 22:13:01 +0000 (15:13 -0700)]
os: treat Getwd result of ENOMEM the same as ENAMETOOLONG
We can see ENOMEM on FreeBSD.
Also don't fail the test if we get an EPERM error when reading
all the way up the tree; on Android we get that, perhaps because
the root directory is unreadable.
Also accept an EFAULT from a stat of a long name on Dragonfly,
which we see on the builders.
Change-Id: If37e6bf414b7b568c9a06130f71e79af153bfb75
Reviewed-on: https://go-review.googlesource.com/c/go/+/610415
Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Keith Randall <khr@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Ian Lance Taylor <iant@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com> Reviewed-by: Keith Randall <khr@google.com>
Kir Kolyshkin [Fri, 8 Sep 2023 00:21:16 +0000 (17:21 -0700)]
all: use t.Chdir in tests
Change-Id: I5bc514bedeb1155e6db52e37736fd6101774aea0
Reviewed-on: https://go-review.googlesource.com/c/go/+/529896
Auto-Submit: Ian Lance Taylor <iant@golang.org>
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Commit-Queue: Ian Lance Taylor <iant@golang.org>
Keith Randall [Tue, 3 Sep 2024 20:53:37 +0000 (13:53 -0700)]
cmd: use built-in clear for maps instead of range+delete
Now that we're bootstrapping from a toolchain that has the clear builtin.
Update #64751
Change-Id: Ia86d96c253c9f7c66131cd02048a493047569641
Reviewed-on: https://go-review.googlesource.com/c/go/+/610237
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com>
Keith Randall [Tue, 3 Sep 2024 20:29:42 +0000 (13:29 -0700)]
cmd: use built-in min/max instead of bespoke versions
Now that we're bootstrapping from a toolchain that has min/max builtins.
Update #64751
Change-Id: I63eedf3cca00f56f62ca092949cb2dc61db03361
Reviewed-on: https://go-review.googlesource.com/c/go/+/610355 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Jorropo [Thu, 15 Aug 2024 02:54:46 +0000 (04:54 +0200)]
cmd/compile: compute Negation's limits from argument's limits
Change-Id: I2e4d74a86faa95321e847a061e06c3efff7f20df
Reviewed-on: https://go-review.googlesource.com/c/go/+/605775 Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Jorropo [Wed, 14 Aug 2024 20:28:00 +0000 (22:28 +0200)]
cmd/compile: compute Complement's limits from argument's limits
I was not sure this was correct so I exhaustively checked all possibilities:
https://go.dev/play/p/hjmCLm4Iagz
https://go.dev/play/p/R9RuRGKwCbN
Change-Id: I85f053df825a4d77f978de42f8a1fcaf4b881def
Reviewed-on: https://go-review.googlesource.com/c/go/+/605696 Reviewed-by: Keith Randall <khr@golang.org>
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Jorropo [Wed, 14 Aug 2024 19:25:08 +0000 (21:25 +0200)]
cmd/compile: compute Trunc's limits from argument's limits
Change-Id: I419faa781db085b98ea25008ca127d0317fb34e1
Reviewed-on: https://go-review.googlesource.com/c/go/+/605695 Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@google.com>
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Jorropo [Tue, 13 Aug 2024 16:40:44 +0000 (18:40 +0200)]
cmd/compile: propagate unsigned limits for Div and Mod if arguments are positive
I didn't implemented negative limits since prove is most useful for BCE which
should never be negative in the first place.
Change-Id: I302ee462cdc20bd4edff0618f7e49ff66fc2a007
Reviewed-on: https://go-review.googlesource.com/c/go/+/605136
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> Reviewed-by: Cherry Mui <cherryyz@google.com>
cmd: replace many sort.Interface with slices.Sort and SortFunc
with slices there's no need to implement sort.Interface
Change-Id: I59167e78881cb1df89a71e33d738d6aeca7adb71
GitHub-Last-Rev: 507ba84453f7305b6b2bf6317292111c00c93ffe
GitHub-Pull-Request: golang/go#68724
Reviewed-on: https://go-review.googlesource.com/c/go/+/602895 Reviewed-by: Ian Lance Taylor <iant@golang.org>
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nlwkobe30 [Fri, 30 Aug 2024 19:05:07 +0000 (19:05 +0000)]
all: omit unnecessary 0 in slice expression
All changes are related to the code, except for the comments in src/regexp/syntax/parse.go and src/slices/slices.go.
Change-Id: I73c5d3c54099749b62210aa7f3182c5eb84bb6a6
GitHub-Last-Rev: 794aa9b0539811d00e1cd42be1e8d9fe9afe0281
GitHub-Pull-Request: golang/go#69170
Reviewed-on: https://go-review.googlesource.com/c/go/+/609678 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Charlie Vieth [Sat, 3 Dec 2022 03:53:26 +0000 (22:53 -0500)]
unicode: improve SimpleFold performance by 2x for non-foldable code points
Change SimpleFold to search the CaseRanges table only once when no
folding is specified for the rune (previously up to two searches could
be performed). This improves performance by 2x for runes that have no
folds or are already upper case. As a side effect this improves the
performance of To by roughly ~15%
Change-Id: I6e5c7554106842955aadeef7b266c4c7944d3a97
Reviewed-on: https://go-review.googlesource.com/c/go/+/454958 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>
Ian Lance Taylor [Tue, 3 Sep 2024 18:28:42 +0000 (11:28 -0700)]
os: treat Getwd result of EINVAL/ERANGE the same as ENAMETOOLONG
At least Darwin and OpenBSD seem to return EINVAL if the resulting
name would be too long. Solaris seems to return ERANGE.
Fixes #69233
Fixes #69234
Change-Id: I9b51d41461e9576c633bf2fc0e96ca3e4d986255
Reviewed-on: https://go-review.googlesource.com/c/go/+/609579 Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Michael Pratt <mpratt@google.com>
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Kir Kolyshkin [Fri, 30 Aug 2024 06:37:08 +0000 (23:37 -0700)]
os: improve TestExecutable
Instead of running all tests and relying on an init function, let's
embed the child code into the test case and only run one specific test.
Change-Id: Ib04e8a580556e7e30ff776c2041f0b809b440a26
Reviewed-on: https://go-review.googlesource.com/c/go/+/609838 Reviewed-by: Ian Lance Taylor <iant@google.com>
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Kir Kolyshkin [Fri, 30 Aug 2024 06:22:21 +0000 (23:22 -0700)]
syscall: use t.TempDir in tests
Change-Id: Ibeb00306ee8f038c11f261abd99c05324bf2ab51
Reviewed-on: https://go-review.googlesource.com/c/go/+/609837
Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com> Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Kir Kolyshkin [Fri, 30 Aug 2024 05:24:30 +0000 (22:24 -0700)]
syscall: use testenv.Executable
Change-Id: I4390d4bfb7deb974df6546e30ebbb4b6fff74730
Reviewed-on: https://go-review.googlesource.com/c/go/+/609836
Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com>
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Kir Kolyshkin [Fri, 30 Aug 2024 02:51:22 +0000 (19:51 -0700)]
math,os,os/*: use testenv.Executable
As some callers don't have a testing context, modify testenv.Executable
to accept nil (similar to how testenv.GOROOT works).
Change-Id: I39112a7869933785a26b5cb6520055b3cc42b847
Reviewed-on: https://go-review.googlesource.com/c/go/+/609835 Reviewed-by: Ian Lance Taylor <iant@google.com>
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Kir Kolyshkin [Fri, 30 Aug 2024 01:23:25 +0000 (18:23 -0700)]
internal/testenv: add missing t.Helper calls
...and move a few so they won't be called when not needed.
Change-Id: I024b9552ed5ed839cde4fbae4815ec6ba8b67265
Reviewed-on: https://go-review.googlesource.com/c/go/+/609300 Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Kir Kolyshkin [Fri, 30 Aug 2024 07:23:50 +0000 (00:23 -0700)]
internal/testenv: use sync.OnceValues for hasSymlink
On some platforms (android, wasip1) this function is called many
times which probably results in some slowdown, especially for wasip1.
Wrap it into sync.OnceValues.
Change-Id: Id290ffd8d1e7ad806302f457e8fff2e3123b49a5
Reviewed-on: https://go-review.googlesource.com/c/go/+/609418
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Kir Kolyshkin [Fri, 30 Aug 2024 02:06:57 +0000 (19:06 -0700)]
testing: use testenv.Executable
Note that this changes some nuances of how the tests work:
- some tests had a fallback to using os.Args[0], which is removed;
- some tests skipped (rather than failed) the test upon getting an
error from os.Executable.
I think these changes are not practically relevant.
Change-Id: I0655add6d959a8b7e3359f94c38203aa06e8f490
Reviewed-on: https://go-review.googlesource.com/c/go/+/609303
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Kir Kolyshkin [Fri, 30 Aug 2024 02:00:00 +0000 (19:00 -0700)]
cmd: use testenv.Executable helper
Change-Id: I25ac0e8d25d760bfde3bb7700f0feaa23f3e8ab1
Reviewed-on: https://go-review.googlesource.com/c/go/+/609302 Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
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Kir Kolyshkin [Fri, 30 Aug 2024 01:51:10 +0000 (18:51 -0700)]
internal/testenv: add Executable
Tests commonly use code to get os.Executable value, and some cache the
resulting value.
To reduce code duplication, add a helper that does just that.
Change-Id: I9dd7eb24e24a3abd92be2b87227e823f0fca5cb3
Reviewed-on: https://go-review.googlesource.com/c/go/+/609301 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com>
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testing: skip TestChdir/relative when on Windows when GOROOT and TMPDIR are on different drives
Fixes #69159
Change-Id: I0bbcf7075bdcf7a277a5053bcb543563a3074784
GitHub-Last-Rev: 86052a9ce32a871d6ad62f772f22852b2c6139a6
GitHub-Pull-Request: golang/go#69160
Reviewed-on: https://go-review.googlesource.com/c/go/+/609304 Reviewed-by: Damien Neil <dneil@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com>
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Jorropo [Tue, 13 Aug 2024 16:27:38 +0000 (18:27 +0200)]
cmd/compile: compute Divu's limits from argument's limits
Change-Id: Id522bde5bba627d9cdc8c3d8e907bdc168e5b13c
Reviewed-on: https://go-review.googlesource.com/c/go/+/605157 Reviewed-by: David Chase <drchase@google.com>
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Jorropo [Tue, 13 Aug 2024 15:17:06 +0000 (17:17 +0200)]
cmd/compile: compute Modu's maximum limits from argument's limits
addLocalFacts loop already ft.update which sets up limits correctly, but doing this in flowLimit help us since other values might depend on this limit.
Updates #68857
We could improve this further:
- remove mod alltogheter when we can prove a < b.
- we could do more adhoc computation in flowLimit to set umax and umin tighter
Change-Id: I5184913577b6a51a07cb53a6e6b73552a982de0b
Reviewed-on: https://go-review.googlesource.com/c/go/+/605156 Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@google.com>
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Jorropo [Fri, 9 Aug 2024 14:35:46 +0000 (16:35 +0200)]
cmd/compile: compute OR's maximum limits from argument's limits
Change-Id: I6902c405cab7bd573f6a721a6ca7c783713ea39a
Reviewed-on: https://go-review.googlesource.com/c/go/+/604456 Reviewed-by: Keith Randall <khr@google.com>
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Jorropo [Fri, 9 Aug 2024 13:45:39 +0000 (15:45 +0200)]
cmd/compile: compute XOR's limits from argument's limits
This help to optimize code like this:
func f(buckets *[512]bucket, v value) {
a, b := v.computeSomething()
// assume a and b are proved < 512
b := &buckets[a ^ b] // pick a random bucket
b.store(v)
}
Change-Id: I1acf702f5a8137f9ded49081b4703922879b0288
Reviewed-on: https://go-review.googlesource.com/c/go/+/604455 Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@golang.org>
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Jorropo [Fri, 9 Aug 2024 13:22:28 +0000 (15:22 +0200)]
cmd/compile: remove outdated comment in prove.go
See the cases above all of theses are implemented (except XOR which has a blank case with comments).
Change-Id: I9e2994490dac89e86ba70c1abeb1af1cbcf032e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/604416 Reviewed-by: Keith Randall <khr@google.com>
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Jorropo [Wed, 7 Aug 2024 20:16:00 +0000 (22:16 +0200)]
cmd/compile: compute bits.TrailingZeros*'s limits from argument's limits
y := bits.TrailingZeros(x)
if y > bits.Len(x.umax)-1 {
then must always be true 1 << y > x.umax which is impossible
}
Change-Id: Iab4fce1c2ef828bee3a8a4a977cbadb5f9333136
Reviewed-on: https://go-review.googlesource.com/c/go/+/603996
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Jorropo [Wed, 7 Aug 2024 19:40:43 +0000 (21:40 +0200)]
cmd/compile: do constant folding for BitLen*
Change-Id: I56c27d606b55ea882f4db264fd4735b0cccdf7c6
Reviewed-on: https://go-review.googlesource.com/c/go/+/604015 Reviewed-by: Keith Randall <khr@google.com>
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Jorropo [Wed, 7 Aug 2024 18:20:21 +0000 (20:20 +0200)]
cmd/compile: compute bits.Len*'s limits from argument's limits
Change-Id: Ie3c7e5eaba6a9a29389018625c4b784d07c6f173
Reviewed-on: https://go-review.googlesource.com/c/go/+/603537 Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Keith Randall <khr@golang.org>
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qiulaidongfeng [Fri, 30 Aug 2024 01:13:44 +0000 (01:13 +0000)]
go/ast: remove unused code
Change-Id: I57a03961dc97d20224498a67687a8c8ecfbbb627
GitHub-Last-Rev: 07ca14263feb7476c7163cc4172b8d3b324d74e9
GitHub-Pull-Request: golang/go#69157
Reviewed-on: https://go-review.googlesource.com/c/go/+/609758 Reviewed-by: Robert Griesemer <gri@google.com>
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Kir Kolyshkin [Tue, 27 Aug 2024 06:04:40 +0000 (23:04 -0700)]
os: Getwd: fallback to slow method on ENAMETOOLONG
As of CL 257637, all currently supported platforms have syscall.Getwd
implemented, so the code which deduces wd by traversing up to root
directory is never used and thus can be removed.
Or, as it was suggested by Ian Lance Taylor in CL 607436 review
comments, it can be reused when syscall.Getwd returns ENAMETOOLONG
(which usually happens than the current working dir is longer than
syscall.PathMax).
Let's do that. The only caveat is, such a long path returned from Getwd
couldn't be used for any file-related operations (they will probably
fail with ENAMETOOLONG).
While at it:
- make the stat(".") code conditional, slightly improving the
performance on Unix when $PWD is not set;
- reuse variables dir and err;
- use openDirNolog instead of openFileNolog to obtain a dirfd;
- ensure the errors returned are wrapped;
- document the new functionality;
- add test cases (which fail before this change).
Change-Id: I60f7a70e6ebb1751699416f587688a1a97305fd7
Reviewed-on: https://go-review.googlesource.com/c/go/+/608635 Reviewed-by: Ian Lance Taylor <iant@google.com>
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j2gg0s [Tue, 27 Aug 2024 14:35:59 +0000 (14:35 +0000)]
encoding/json: add embedded structs to the UnmarshalTypeError's Field
Including embedded struct inforamtion in error message.
Fixes #68941
Change-Id: I6a6f7d506104839a9a7cf1a2c3003272f5534a79
GitHub-Last-Rev: 717f680acafd3f6509c0495f9092e028be502750
GitHub-Pull-Request: golang/go#68966
Reviewed-on: https://go-review.googlesource.com/c/go/+/606956
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Andy Pan [Thu, 29 Aug 2024 05:01:12 +0000 (13:01 +0800)]
internal/poll: check return value instead of errno for copy_file_range(2)
There is one special case of (0, nil) indicating EOF where the updates
of zero to remain and written are redundant.
Change-Id: I017471657a9424fab88c72d14d3eb66d14a7e5c7
Reviewed-on: https://go-review.googlesource.com/c/go/+/609297
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Andy Pan [Thu, 29 Aug 2024 04:58:35 +0000 (12:58 +0800)]
os: update the linux minimal version and fix a typo for zero-copy
Change-Id: Ia6a2768be0e044112831c278d88ff31ba3caa9f9
Reviewed-on: https://go-review.googlesource.com/c/go/+/609298 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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**Before**
```
Time (mean ± sig): 1.293 s ± 0.017 s [User: 0.472 s, System: 0.451 s]
Range (min ... max): 1.263 s ... 1.316 s 10 runs
```
**After**
```
Time (mean ±sig): 986.5 ms ± 22.6 ms [User: 487.0 ms, System: 519.5 ms]
Range (min ... max): 950.7 ms ... 1022.2 ms 10 runs
```
The version after changes is 25% faster for 5 input files (std "net" package).
I also tried to make CC artifictially slower (wrapper with sleep 0.2) and it showes same 25% performance increase.
Change-Id: I7a26fdc8d8a23b0df9bc71d30b96e82e2ddb943b
Reviewed-on: https://go-review.googlesource.com/c/go/+/581336
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Aperence [Wed, 28 Aug 2024 17:45:58 +0000 (17:45 +0000)]
net: enable multipath TCP by default for listeners
A previous change [1] was introduced to enable MPTCP by default
for both the clients and servers, based on the discussions [2] in
golang#56539, where MPTCP would be an opt-in for a release or
two, and then would become an opt-out.
This change was not accepted at the time because the support for
a few socket options was missing [3]. Now that this support has been
added [4] and backported to stable versions not to block MPTCP
deployment with Go, it sounds like a good time to reconsider the use
of MPTCP by default.
Instead of enabling MPTCP on both ends by default, as a first step,
it seems safer to change the default behaviour only for the server
side (Listeners). On the server side, the impact is minimal: when
clients don't request to use MPTCP, server applications will create
"plain" TCP sockets within the kernel when connections are accepted,
making the performance impact minimal. This should also ease
experiments where MPTCP is enabled by default on the client side
(Dialer).
The changes in this patch consist of a duplication of the mptcpStatus
enumeration to have both a mptcpStatusDial and a mptcpStatusListen,
where MPTCP is enabled by default in mptcpStatusListen, but disabled
by default in mptcpStatusDial. It is still possible to turn MPTCP support
on and off by using GODEBUG=multipathtcp=1.
Change-Id: I1ca0d6aaf74d3bda5468af135e29cdb405d3fd00
GitHub-Last-Rev: 5f9f29bfc13ad4ea6bfd1e0fc95a91bd824f4048
GitHub-Pull-Request: golang/go#69016
Reviewed-on: https://go-review.googlesource.com/c/go/+/607715
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Ian Lance Taylor [Sun, 18 Aug 2024 00:53:19 +0000 (17:53 -0700)]
context: document that WithValue returns a derived context
Also replace "copy of parent" with "derived context" in doc comments.
Fixes #68923
Change-Id: I319c1594f390e35b32b4e58ee979927bb84bfdf9
Reviewed-on: https://go-review.googlesource.com/c/go/+/606555 Reviewed-by: Sameer Ajmani <sameer@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com>
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Wei Fu [Thu, 22 Aug 2024 08:22:53 +0000 (16:22 +0800)]
os: dup pidfd if caller sets PidFD manually
Fixes #68984
Change-Id: I16d25777cb38a337cd4204a8147eaf866c3df9e1
Reviewed-on: https://go-review.googlesource.com/c/go/+/607695 Reviewed-by: Kirill Kolyshkin <kolyshkin@gmail.com> Reviewed-by: Michael Pratt <mpratt@google.com>
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Paschalis T [Fri, 30 Aug 2024 20:24:40 +0000 (23:24 +0300)]
doc: fix wording of GODEBUG history item from CL 606055
Change-Id: Ia53d4a58810948d83a3e87e08239602da1bad815
Reviewed-on: https://go-review.googlesource.com/c/go/+/609935
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Cuong Manh Le [Fri, 30 Aug 2024 17:26:37 +0000 (00:26 +0700)]
cmd/dist: do not rewrite "any" -> "interface{}"
Since go1.22, generic can now be used when building bootstrap toolchain.
Updates #54265
Updates #64751
Change-Id: I93209fc23c92114d37ef36787ea2b520de3ed89d
Reviewed-on: https://go-review.googlesource.com/c/go/+/609915
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Ian Lance Taylor [Wed, 21 Aug 2024 20:43:42 +0000 (13:43 -0700)]
syscall: honor prlimit set by a different process
On Linux one process can call prlimit to change the resource limit
of another process. With this change we treat that as though the
current process called prlimit (or setrlimit) to set its own limit.
The cost is one additional getrlimit system call per fork/exec,
for cases in which the rlimit Cur and Max values differ at startup.
This revealed a bug: the setrlimit (not Setrlimit) function should not
change the cached rlimit. That means that it must call prlimit1, not prlimit.
Fixes #66797
Change-Id: I46bfd06e09ab7273fe8dd9b5b744dffdf31d828b
Reviewed-on: https://go-review.googlesource.com/c/go/+/607516
Auto-Submit: Ian Lance Taylor <iant@golang.org> Reviewed-by: Damien Neil <dneil@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Aleksa Sarai <cyphar@cyphar.com> Reviewed-by: Kirill Kolyshkin <kolyshkin@gmail.com>
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Ian Lance Taylor [Thu, 22 Aug 2024 20:47:13 +0000 (13:47 -0700)]
encoding/base32, encoding/base64: document Decode to short buffer
Document that if one of the Decode methods in these packages is given
a short buffer, it panics.
Fixes #69024
Change-Id: I1c0e4c74274965c1cfa0422cc8f86af4fefb1d00
Reviewed-on: https://go-review.googlesource.com/c/go/+/607499
Auto-Submit: Ian Lance Taylor <iant@golang.org>
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Ian Lance Taylor [Wed, 28 Aug 2024 23:20:44 +0000 (16:20 -0700)]
syscall: always use prlimit for getrlimit/setrlimit on Linux
Linux added the prlimit system call in version 2.6.36.
As our minimum Linux kernel version is now 3.2,
simplify the various getrlimit/setlrimit implementations
to just always use prlimit.
For #67001
Change-Id: I2512c21c947d0bc83f8f9077c143163fd8d83be3
Reviewed-on: https://go-review.googlesource.com/c/go/+/609178 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Damien Neil <dneil@google.com>
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Ian Lance Taylor [Tue, 27 Aug 2024 17:19:17 +0000 (10:19 -0700)]
cmd/cgo: correct padding required by alignment
If the aligned offset isn't sufficient for the field offset,
we were padding based on the aligned offset. We need to pad
based on the original offset instead.
Also set the Go alignment correctly for int128. We were defaulting
to the maximum alignment, but since we translate int128 into an
array of uint8 the correct Go alignment is 1.
Fixes #69086
Change-Id: I23ce583335c81beac2ac51f7f9336ac97ccebf09
Reviewed-on: https://go-review.googlesource.com/c/go/+/608815 Reviewed-by: Damien Neil <dneil@google.com>
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Alessandro Arzilli [Wed, 28 Aug 2024 08:16:10 +0000 (10:16 +0200)]
debug/macho: fix DWARF for section names longer than 16 chars
The Mach-O file format truncates section names to 16 characters
maximum, which makes some sections unrecognizable to debug/dwarf.
This CL works around this problem by re-expanding the truncated section
names.
This problem was originally reported as:
https://github.com/go-delve/delve/issues/3797
Change-Id: I8c4a02493b8d5c3f63c831da43f6292124edf670
Reviewed-on: https://go-review.googlesource.com/c/go/+/608995
Auto-Submit: Ian Lance Taylor <iant@golang.org>
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Kir Kolyshkin [Fri, 30 Aug 2024 00:35:13 +0000 (17:35 -0700)]
internal/testenv: simplify hasSymlink for windows
1. Combine two functions into one.
2. Use errors.Is to check for wrapped errors.
3. Use sync.OnceValues.
Change-Id: I25f55d31bb658ff08da209b1740e9dff579cca69
Reviewed-on: https://go-review.googlesource.com/c/go/+/609797 Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org> Reviewed-by: Alan Donovan <adonovan@google.com>
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Commit-Queue: Ian Lance Taylor <iant@golang.org>
Kir Kolyshkin [Fri, 30 Aug 2024 00:31:03 +0000 (17:31 -0700)]
internal/testenv: use sync.OnceValue[s]
Modernize the code to use sync.OnceValue[s] instead of sync.Once.
While at it, reuse the result of exec.LookPath("go") in tryGoBuild.
Change-Id: I13eff3dd55797846680e506fffb7c49c8296829d
Reviewed-on: https://go-review.googlesource.com/c/go/+/609796
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org> Reviewed-by: Alan Donovan <adonovan@google.com>
Commit-Queue: Ian Lance Taylor <iant@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com>
Kir Kolyshkin [Thu, 29 Aug 2024 23:46:16 +0000 (16:46 -0700)]
internal/testenv: MustHaveExec: use sync.OnceValue
Change-Id: I048474fc93bb8c149672b66f98d71eec0eb8aad7
Reviewed-on: https://go-review.googlesource.com/c/go/+/609795 Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Alan Donovan <adonovan@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Alan Donovan [Wed, 28 Aug 2024 22:13:05 +0000 (18:13 -0400)]
os/exec: document interaction of Dir, PWD, os.Getwd and C
Fixes #68000
Change-Id: Ie70a8ecc9573b2a4cf57119bda57e0af5e16c42f
Reviewed-on: https://go-review.googlesource.com/c/go/+/609395
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Ian Lance Taylor <iant@google.com>
WANG Xuerui [Wed, 5 Apr 2023 07:56:42 +0000 (15:56 +0800)]
internal/cpu, runtime: make linux/loong64 HWCAP data available
This can be used to toggle runtime usages of ISA extensions as such
usages appear.
Only the CRC32 bit is exposed for now, as the others are not going to be
utilized in the standard library for a while.
Change-Id: I774032ca84dc8bcf1c9f17558917315af07c7314
Reviewed-on: https://go-review.googlesource.com/c/go/+/482416 Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: xiaodong liu <teaofmoli@gmail.com>
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Ian Lance Taylor [Wed, 28 Aug 2024 16:33:49 +0000 (09:33 -0700)]
slices: clarify Insert behavior if i == len(s)
Fixes #69104
Change-Id: Ie928239d5ef198ce36759ec4cffb7f6320ff3b82
Reviewed-on: https://go-review.googlesource.com/c/go/+/609175 Reviewed-by: Eli Bendersky <eliben@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Joel Sing [Mon, 19 Aug 2024 13:54:17 +0000 (23:54 +1000)]
cmd/compile/internal/ssa: combine shift and addition for riscv64 rva22u64
When GORISCV64 enables rva22u64, combined shift and addition using the
SH1ADD, SH2ADD and SH3ADD instructions that are available via the Zba
extension. This results in more than 2000 instructions being removed
from the Go binary on riscv64.
Change-Id: Ia62ae7dda3d8083cff315113421bee73f518eea8
Reviewed-on: https://go-review.googlesource.com/c/go/+/606636
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Mark Ryan <markdryan@rivosinc.com> Reviewed-by: Michael Pratt <mpratt@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
Michael Matloob [Fri, 16 Aug 2024 19:13:39 +0000 (15:13 -0400)]
go/types, types2: use max(fileVersion, go1.21) if fileVersion present
Change the rules for how //go:build "file versions" are applied: instead
of considering whether a file version is an upgrade or downgrade from
the -lang version, always use max(fileVersion, go1.21). This prevents
file versions from downgrading the version below go1.21. Before Go 1.21
the //go:build version did not have the meaning of setting the file's
langage version.
This fixes an issue that was appearing in GOPATH builds: Go 1.23.0
started providing -lang versions to the compiler in GOPATH mode (among
other places) which it wasn't doing before, and it set -lang to the
toolchain version (1.23). Because the -lang version was greater than
go1.21, language version used to compile the file would be set to the
//go:build file version. //go:build file versions below 1.21 could cause
files that could previously build to stop building.
For example, take a Go file with a //go:build line specifying go1.10.
If that file used a 1.18 feature, that use would compile fine with a Go
1.22 toolchain. But it would produce an error when compiling with the
1.23.0 toolchain because it set the language version to 1.10 and
disallowed the 1.18 feature. This breaks backwards compatibility: when
the build tag was added, it did not have the meaning of restricting the
language version.
For #68658
Change-Id: I6cedda81a55bcccffaa3501eef9e2be6541b6ece
Reviewed-on: https://go-review.googlesource.com/c/go/+/607955
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Robert Griesemer <gri@google.com>
Michael Anthony Knyszek [Tue, 27 Aug 2024 15:34:10 +0000 (15:34 +0000)]
runtime: store bp on cgocallback as unsafe.Pointer
As of CL 580255, the runtime tracks the frame pointer (or base pointer,
bp) when entering syscalls, so that we can use fpTracebackPCs on
goroutines that are sitting in syscalls. That CL mostly got things
right, but missed one very subtle detail.
When calling from Go->C->Go, the goroutine stack performing the calls
when returning to Go is free to move around in memory due to growth,
shrinking, etc. But upon returning back to C, it needs to restore
gp.syscall*, including gp.syscallsp and gp.syscallbp. The way syscallsp
currently gets updated is automagically: it's stored as an
unsafe.Pointer on the stack so that it shows up in a stack map. If the
stack ever moves, it'll get updated correctly. But gp.syscallbp isn't
saved to the stack as an unsafe.Pointer, but rather as a uintptr, so it
never gets updated! As a result, in rare circumstances, fpTracebackPCs
can correctly try to use gp.syscallbp as the starting point for the
traceback, but the value is stale.
This change fixes the problem by just storing gp.syscallbp to the stack
on cgocallback as an unsafe.Pointer, like gp.syscallsp. It also adds a
comment documenting this subtlety; the lack of explanation for the
unsafe.Pointer type on syscallsp meant this detail was missed -- let's
not miss it again in the future.
Now, we have a fix, what about a test? Unfortunately, testing this is
going to be incredibly annoying because the circumstances under which
gp.syscallbp are actually used for traceback are non-deterministic and
hard to arrange, especially from within testprogcgo where we don't have
export_test.go and can't reach into the runtime.
So, instead, add a gp.syscallbp check to reentersyscall and
entersyscallblock that mirrors the gp.syscallbp consistency check. This
probably causes some miniscule slowdown to the syscall path, but it'll
catch the issue without having to actually perform a traceback.
Fixes #69085.
Change-Id: Iaf771758f1666024b854f5fbe2b2c63cbe35b201
Reviewed-on: https://go-review.googlesource.com/c/go/+/608775 Reviewed-by: Nick Ripley <nick.ripley@datadoghq.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Michael Pratt <mpratt@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
cuishuang [Fri, 23 Aug 2024 17:23:24 +0000 (01:23 +0800)]
html/template: track continue nodes correctly when escaping
Fixes #69076
Change-Id: I1a16675c466722f44d0734e95d3c8111e33ff580
Reviewed-on: https://go-review.googlesource.com/c/go/+/607736
Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Michael Pratt <mpratt@google.com> Reviewed-by: Zxilly Chou <zxilly@outlook.com>
Run-TryBot: shuang cui <imcusg@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Michael Pratt [Tue, 27 Aug 2024 15:13:46 +0000 (11:13 -0400)]
debug/buildinfo: stop searchMagic search at EOF
An invalid executable may claim to have a data section bigger than the
executable, causing readData in searchMagic to hit EOF. Since readData
suppresses all EOF errors, searchData would keep attempting to search
through a potentially huge "section" despite readData continuously
failing.
Fix by suppressing EOF only on partial read. If nothing is read, allow
EOF. Note that most of the admittedly tedious EOF handling in this
package is around ensuring we return errNotGoExe in most cases.
This was discovered by the new fuzz test. This fuzz test was inspired
by #69066, though it has not found that specific bug.
Change-Id: Icf413e996cecc583c084c9e44249b9294c3d8f10
Reviewed-on: https://go-review.googlesource.com/c/go/+/608637 Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Dmitri Shuralyov [Tue, 20 Aug 2024 23:12:19 +0000 (19:12 -0400)]
cmd/dist: update tryDirs list to match make scripts
The $HOME/sdk/go1.17 and $HOME/go1.17 paths were initially added as
places to look for a bootstrap toolchain to make.{bash,bat,rc} scripts
and in cmd/dist (CL 370274). Those two go1.17 directories have since
been updated in the make scripts to go1.20.6 (CL 512275) and later on
to go1.22.6 (CL 606156), but the same list in cmd/dist was missed.
Fix the inconsistency now. But maybe cmd/dist doesn't need to maintain
this logic, if it's required to be invoked via one of the make scripts,
since they're responsible for setting GOROOT_BOOTSTRAP?
For #64751.
Change-Id: I0988005c559014791363138f2f722cc1f9a78bcf
Reviewed-on: https://go-review.googlesource.com/c/go/+/607821 Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Ian Lance Taylor [Mon, 26 Aug 2024 22:17:07 +0000 (15:17 -0700)]
debug/buildinfo: don't crash on corrupt object file
If the length reported for the object file is more than the amount of
data we actually read, then the count can tell us that there is
sufficient remaining data but the slice operation can fail.
No test case because the problem can only happen for invalid data.
Let the fuzzer find cases like this.
Fixes #69066
Change-Id: I8d12ca8ade3330517ade45c7578b477772b7efd2
Reviewed-on: https://go-review.googlesource.com/c/go/+/608517
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Commit-Queue: Ian Lance Taylor <iant@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Michael Pratt <mpratt@google.com>
Joel Sing [Sun, 4 Aug 2024 14:33:25 +0000 (00:33 +1000)]
cmd/compile/internal/ssagen: add check for duplicate intrinsics
Add a check to ensure that intrinsics are not being overwritten.
Remove two S390X intrinsics that are being replaced by aliases and
are therefore ineffective.
Change-Id: I4187a169c14ca75c45a67f41a1d626d76b82bb72
Reviewed-on: https://go-review.googlesource.com/c/go/+/605479
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Keith Randall <khr@golang.org>
Joel Sing [Thu, 15 Aug 2024 15:17:05 +0000 (01:17 +1000)]
cmd/compile/internal/ssagen: improve intrinsic test
Now that we can pass configuration to initIntrinsics, clean up the
intrinsic test and always enable power10. Additionally, provide an
-update flag that prints out updated golden values.
Change-Id: Ibfef339d513a4d67d53a5a310a82165592ca338f
Reviewed-on: https://go-review.googlesource.com/c/go/+/607055 Reviewed-by: David Chase <drchase@google.com>
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Joel Sing [Sat, 3 Aug 2024 18:45:14 +0000 (04:45 +1000)]
cmd/compile/internal/ssagen: provide intrinsicBuilders
Create an intrinsicBuilders type that has functions for adding and
looking up intrinsics. This makes the implementation more self contained,
readable and testable. Additionally, pass an *intrinsicBuildConfig to
initIntrinsics to improve testability without needing to modify package
level variables.
Change-Id: I0ee0a19c192dd6da9f1c5f1c29b98a3ad8161fe2
Reviewed-on: https://go-review.googlesource.com/c/go/+/605478 Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Joel Sing <joel@sing.id.au>
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qmuntal [Fri, 9 Aug 2024 08:57:51 +0000 (10:57 +0200)]
os/user: test that Current does not depend on netapi32.dll
Updates #21867.
Change-Id: I1eb923ef66aa0f338bfa0d683159edc1d8ae2a6c
Reviewed-on: https://go-review.googlesource.com/c/go/+/604415 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
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