If the current directory is also listed explicitly in %PATH%,
this changes the behavior of LookPath to prefer the explicit name for it
(and thereby avoid ErrDot).
However, in order to avoid running a different executable from what
would have been run by previous Go versions, we still return the
implicit path (and ErrDot) if it refers to a different file entirely.
Fixes#53536.
Updates #43724.
Change-Id: I7ab01074e21a0e8b07a176e3bc6d3b8cf0c873cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/414054
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
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If value is a non-empty interface and has shape, we still need to
convert it to an interface{} first.
Fixes#53477
Change-Id: I516063ba4429a6cc24c483758387ec13815fc63e
Reviewed-on: https://go-review.googlesource.com/c/go/+/414834
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
The responses have been cached by the web2 package before removed
it in CL 170879. This change add latest revinfo cache in Versions
func.
Fixes#51391
Change-Id: I73597e0a6b4938238e69d85e1cbbaa9007776db3
Reviewed-on: https://go-review.googlesource.com/c/go/+/403335
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Reviewed-by: David Chase <drchase@google.com>
Add analogous tests to go/types and types2 test suites.
Make sure "assert" built-in is available in type-checker
tests.
For #49157.
For #53585.
Change-Id: I092901ecb43eb4833c09bd8f5e38efbe0285babe
Reviewed-on: https://go-review.googlesource.com/c/go/+/414795
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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For #51475
Change-Id: Ie1b27304687225194a323dc8305e5d62578fff4f
Reviewed-on: https://go-review.googlesource.com/c/go/+/414755
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CGO flag variables often include system paths for header files and
compiled libraries. The point of -trimpath is to avoid dependending on
system paths, so stamping these variables is counterproductive.
Moreover, the point of stamping build information is to improve
reproducibility. Since we don't also stamp the versions of C
compilers, headers, and libraries used in a cgo build, only the most
trivial cgo programs can be faithfully reproduced from the stamped
information.
Likewise, the -ldflags flag may include system-specific paths,
particularly if external linking is in use. For now, we omit -ldflags
entirely; however, in the future we may instead want to parse and
redact the individual flags.
Fixes#52372.
Change-Id: I73318a01cce4371d66955b3261fc7ee58d4b33dd
Reviewed-on: https://go-review.googlesource.com/c/go/+/409174
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Run-TryBot: Bryan Mills <bcmills@google.com>
It was #51868 not #51686.
For #53310.
Change-Id: I2cf28ca4de65e7030fdbd05e7f32fe42c8f3ca0a
Reviewed-on: https://go-review.googlesource.com/c/go/+/414515
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
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We now get more than just time/op.
name time/op
Print-16 6.29ms ± 3%
name speed
Print-16 8.25MB/s ± 3%
name alloc/op
Print-16 483kB ± 0%
name allocs/op
Print-16 17.8k ± 0%
Change-Id: I6b5e9a30a826ff8603724bd5983e6b7f5ec12708
Reviewed-on: https://go-review.googlesource.com/c/go/+/412554
Reviewed-by: Robert Griesemer <gri@google.com>
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Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Ian Lance Taylor <iant@google.com>
For #38111
Change-Id: I2651687367af68ee070ea91106f4bc18adab2762
Reviewed-on: https://go-review.googlesource.com/c/go/+/414634
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
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On darwin_arm64, reading from a socket at the same time as the other
end is closing it will occasionally hang for 60 seconds before
returning ECONNRESET. (This is a macOS issue, not a Go issue.)
Work around this condition by adding a brief sleep before the read.
Fixes#49352 (we hope).
Updates #37795.
Change-Id: I4052aec21d311d7370550aea9dd7941f39141133
Reviewed-on: https://go-review.googlesource.com/c/go/+/414534
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esacped -> escaped
Change-Id: I253c46b30bb1cf7cdfb4668628907d16428fefb9
GitHub-Last-Rev: accd0e089f
GitHub-Pull-Request: golang/go#53553
Reviewed-on: https://go-review.googlesource.com/c/go/+/414274
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As of LLVM rev 41cb504b7c4b18ac15830107431a0c1eec73a6b2, the
race detector runtime now refers to things in the windows
synchronization library, hence when doing windows internal
linking, at that library to the list of host archives that
we visit. The tsan code that makes the reference is here:
41cb504b7c/compiler-rt/lib/sanitizer_common/sanitizer_win.cpp (L48)41cb504b7c/compiler-rt/lib/sanitizer_common/sanitizer_win.cpp (L834)
Note that libsynchronization.a is not guaranteed to be available on
all windows systems, so in the external linking case, check for its
existence before adding "-lsynchronization" to the external linker
args.
Updates #53539.
Change-Id: I433c95c869915693d59e9c1082d5b8a11da1fc8c
Reviewed-on: https://go-review.googlesource.com/c/go/+/413817
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
For #52871
Change-Id: Id6102222a8b1ec8a84b716425bed0e349c65dbc4
Reviewed-on: https://go-review.googlesource.com/c/go/+/414336
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The gofrontend crashed importing a complex 0 constant.
For #52862
Change-Id: Ia87d8eadb9c5ddf51e1cd65c1a626f05f0d068d4
Reviewed-on: https://go-review.googlesource.com/c/go/+/413980
Reviewed-by: Cherry Mui <cherryyz@google.com>
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runtime/internal/syscall is a runtime package, so it should be built
with -+.
Specifically, we don't want libfuzzer instrumentation in Go functions
defined in runtime/internal/syscall, which is disabled with -+.
For #53190.
Change-Id: I9f16f5c7c7ce10b98371e9de82fcea6da854e163
Reviewed-on: https://go-review.googlesource.com/c/go/+/413818
Run-TryBot: Michael Pratt <mpratt@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Requested by the maintainers of the OpenSSL-based fork of Go+BoringCrypto,
to make maintaining that fork easier.
Change-Id: I770e70ecc12b589034da31edecf59c73b2c6e1dd
Reviewed-on: https://go-review.googlesource.com/c/go/+/407135
Run-TryBot: Russ Cox <rsc@golang.org>
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This lets us generate identical copies of fastlog2table.go on all hosts.
Tested by regenerating fastlog2table.go on linux-amd64 and darwin-arm64.
Fixes#49891
Change-Id: I279d6b5abb5a5290c049d9658050fd9c8d0c0190
Reviewed-on: https://go-review.googlesource.com/c/go/+/413976
Run-TryBot: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
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For #52856
Change-Id: Iab3e8352f64d774058391f0422cd01c53c3e711d
Reviewed-on: https://go-review.googlesource.com/c/go/+/414235
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
The previous change implemented the missing fallthrough checking
in the parser. Therefore we can now disable the duplicate check
in the type checker:
- rename (types2.Config.)IngoreLabels to IgnoreBranches to more
accurately reflect its functionality
- now also ignore break/continue/fallthroughs, not just labels
The IgnoreBranches flag only exists for types2, for use with
the compiler. There's no need to port this code to go/types.
Note: An alternative (and perhaps better) approach would be
to not use the the parser's CheckBranches mode and instead
enable (i.e. not disable) the branch/label checking in the
type checker. However, this requires a bit more work because
the type checker's error messages about goto's jumping over
variables don't have access to the variable names, which are
desired in the error messages.
Fixes#51456.
Change-Id: Ib2e71e811d4e84e4895b729646e879fd43b12dcd
Reviewed-on: https://go-review.googlesource.com/c/go/+/414135
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
The parser CheckBranches mode checked correct use of break, continue,
and labels, but not of fallthrough statements.
This CL adds checking of fallthrough statements as well.
For #51456.
Change-Id: I5000388011973724f80c59a6aaf015e3bb70faea
Reviewed-on: https://go-review.googlesource.com/c/go/+/414134
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
These functions can be inserted by the compiler into the code to be
instrumented. This may result in these functions having callers that
are nosplit. That is why they must be nosplit.
This is a followup for CL 410034 in order to fix#53190.
Change-Id: I03746208a2a302a581a1eaad6c9d0672bb1e949a
GitHub-Last-Rev: 6506d86f22
GitHub-Pull-Request: golang/go#53544
Reviewed-on: https://go-review.googlesource.com/c/go/+/413978
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Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Fixes#50710
Change-Id: I62feddbe3eaae9605d196bec60d378614436603a
Reviewed-on: https://go-review.googlesource.com/c/go/+/379754
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Calling FormatFloat with an invalid value of fmt is expected
to return a string containing '%' and the input fmt character.
Since even before Go 1.0, the code has been panicking in the
case where prec=0.
Fixes#52187
Change-Id: I74fec601eedb7fe28efc5132c4253674661452aa
Reviewed-on: https://go-review.googlesource.com/c/go/+/402817
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Auto-Submit: Emmanuel Odeke <emmanuel@orijtech.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Update instructions to match what seems to be the historical practice:
to generate canned traces when a version is finalized, rather than
waiting until it is superseded.
Follow rename of trace-internal tests from "Span" to "Region". Update
the net/http test invocation to match the apparent intent and the actual
http_1_5_good behavior (about 7ms of total run time and trace file size
under 50kB).
Change-Id: Ifd4c85882159478852e0b8f0d771b6f16b8f3c1b
Reviewed-on: https://go-review.googlesource.com/c/go/+/413776
Run-TryBot: Rhys Hiltner <rhys@justin.tv>
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Non-main packages in module mode should not be installed to
GOPATH/pkg, but due to #37015 they were installed there anyway.
This change switches the 'go install' command to instead use
'go build -buildmode=archive' with an explicit archive path.
For #37015.
Change-Id: Ib0c8f213100b6473a7657af96f31395703e28493
Reviewed-on: https://go-review.googlesource.com/c/go/+/414055
Auto-Submit: Bryan Mills <bcmills@google.com>
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Packages outside the module cache including the standard library will be
indexed individually rather than as a whole module.
For #52876
Change-Id: I142dad6a790e9e8eb4dc6430a588fbfa86552e49
Reviewed-on: https://go-review.googlesource.com/c/go/+/413815
Reviewed-by: Michael Matloob <matloob@golang.org>
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Also align Retracted documentation with actual type of []string
Fixes#51876
Change-Id: I3b34e53424aa7ee5330eb71adac23510fff91798
Reviewed-on: https://go-review.googlesource.com/c/go/+/394677
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
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Fixes#50788.
Change-Id: Id1ed7d9c0687e3005e28598373fd5634178c78ca
Reviewed-on: https://go-review.googlesource.com/c/go/+/413895
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
For #51525.
Change-Id: I3762bc4a48a1aaab3b006b1ad1400f866892243c
Reviewed-on: https://go-review.googlesource.com/c/go/+/413934
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Fixes#53522
Change-Id: Ibed838d358a733d26a6c3d89446d7fadb1012961
Reviewed-on: https://go-review.googlesource.com/c/go/+/413876
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Touch up the line table reader to ensure that it can detect and reject
an invalid program offset field in the table header.
Fixes#53329.
Change-Id: Ia8d684e909af3aca3014b4a3d0dfd431e3f5a9f0
Reviewed-on: https://go-review.googlesource.com/c/go/+/413814
Run-TryBot: Than McIntosh <thanm@google.com>
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For #44486
Change-Id: I66af9f7a9f95489a41fd6710e50bdd7878f78b85
Reviewed-on: https://go-review.googlesource.com/c/go/+/413494
Run-TryBot: Ian Lance Taylor <iant@google.com>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
For #52846
Change-Id: I763f81def97b53277396c123c524f7b8193ea35e
Reviewed-on: https://go-review.googlesource.com/c/go/+/413694
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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os.CreateTemp in downloadZip leaves downloaded .zip files readable only
by the owner. Make them group/world readable.
Fixes#52765
Change-Id: Iace13e4ad813201a533a1a5fc0c6d9b2e5349a42
Reviewed-on: https://go-review.googlesource.com/c/go/+/404854
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
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For a package that uses cgo, the file _cgo_import.go is created to
record information required for internal linking: the non-Go dynamic
symbols and libraries that the package depends on. Generating this
information sometimes fails, because it can require recreating all the
dependencies of all transitively imported packages. And the
information is rarely needed, since by default we use external linking
when there are packages outside of the standard library that use cgo.
With this CL, if generating _cgo_import.go fails, we don't report an
error. Instead, we mark the package as requiring external linking, by
adding an empty file named "dynimportfail" into the generated archive.
If the linker sees a file with that name, it rejects an attempt to use
internal linking.
Fixes#52863
Change-Id: Ie586e6753a5b67e49bb14533cd7603d9defcf0ea
Reviewed-on: https://go-review.googlesource.com/c/go/+/413460
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Scanning GOROOT modules for changes appears to be causing Windows
builders to time out in x/tools tests. We may try a per-package index
instead, but for now just skip GOROOT modules (as we do for main
modules).
Fixes#53493.
Change-Id: Ic5bb90b4ce173a24fc6564e85fcde96e1f9b975f
Reviewed-on: https://go-review.googlesource.com/c/go/+/413634
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go get -d golang.org/x/sys@6c1b26c55098eae66ce95ab7c3712ab6cbfff2b7
go mod tidy
go mod vendor
This fixes the problem of the second return value in syscall on linux/loong64.
Change-Id: I8018ae96f4e5ca9779b2c053cdccc6b2866bf0de
Reviewed-on: https://go-review.googlesource.com/c/go/+/412274
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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For #53362Fixes#53414
Change-Id: I352164e70c136eed210c7ee4ceba5dc631f81f94
Reviewed-on: https://go-review.googlesource.com/c/go/+/412955
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Alex Rakoczy <alex@golang.org>
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Fixes#53350
Change-Id: Id5e1f4016db5f1d4349ee1a76a9dfe3aeae83cee
GitHub-Last-Rev: 45add12161
GitHub-Pull-Request: golang/go#53407
Reviewed-on: https://go-review.googlesource.com/c/go/+/412634
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Fixes#52611
Change-Id: I835df8d6a98a37482446ec00af768c96fd8ee4fe
GitHub-Last-Rev: ea54dd69ee
GitHub-Pull-Request: golang/go#52733
Reviewed-on: https://go-review.googlesource.com/c/go/+/404497
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dexter Ouyang <kkhaike@gmail.com>
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Windows can call the C DNS lookup routines even without cgo,
so don't force it to use the Go routines in that scenario.
No test because the test requires building the tools with CGO_ENABLED=0.
For #33097Fixes#53490
Change-Id: I3595a68e788be0d3bbd1bbd431836aca20a7d757
Reviewed-on: https://go-review.googlesource.com/c/go/+/413458
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Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
This change adds rudimentary explanation of the various
visualizations to main page of the trace server.
There is clearly a vast amount one could write here,
especially in the form of tutorials, but I've tried to
restrict it to just basic conceptual overview.
Change-Id: Id4dfe9d47f9b31ed5f8fe39f8b3a7c60c0ae8d5a
Reviewed-on: https://go-review.googlesource.com/c/go/+/412876
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Alan Donovan <adonovan@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
If we have more than two function arguments to a generic function,
we may have arguments with named and unnamed types. If that is the
case, permutate params and args such that the arguments with named
types are first in the list. This way, independent of parameter
ordering, the type inference will produce the same result.
This extra step is not explicitly outlined in the spec yet but we
all agree that (parameter) order independence is an invariant that
we should uphold for type inference. As we move towards less
operational and more descriptive rules for type inference, we will
incorporate this property as well.
The actual fix for this bug existed before 1.18 but was not enabled.
This CL merely enables the fix (switches a flag) and adjusts some
tests.
Fixes#43056.
Change-Id: Ie4e40cf8438dfd82fa94b78068e4f6f6f53f83e6
Reviewed-on: https://go-review.googlesource.com/c/go/+/413459
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Pre-1.18, as special cases, the built-in operations append and copy
accepted strings as second arguments if the first argument was a byte
slice. With Go 1.18, these two built-ins as well as slice expressions
rely on the notion of core types in their specification.
Because we want to permit slice expressions, append, and copy to
operate on (1st or 2nd operands) that are type parameters restricted
by []byte | string (and variations thereof), the simple notion of
core type is not sufficient for these three operations. (The compiler
already permits such more relaxed operations).
In the section on core types, add a paragraph and examples introducing
the (artificial) core type "bypestring", which describes the core type
of type sets whose underlying types are []byte or string. Adjust the
rules for slice expressions, append, and copy accordingly.
Also (unrelated): Adjust prose in the only paragraph where we used
personal speech ("we") to impersonal speech, to match the rest of
the spec.
Fixes#52859.
Change-Id: I1cbda3095a1136fb99334cc3a62a9a349a27ce1e
Reviewed-on: https://go-review.googlesource.com/c/go/+/412234
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
When runtime.sigprof encounters a stack that gentraceback is unable to
process, it synthesizes a call stack with a sentinel function (such as
runtime._System) at the leaf.
The test to confirm that runtime/trace and runtime/pprof have similar
views of CPU profile samples has trouble with those stacks. The test
confirms that the samples match by confirming that their symbolized
forms match, and the symbolization procedure is very different for the
two packages.
Skip the samples that the CPU profiler's view symbolizes to include one
of runtime.sigprof's sentinel functions at the leaf. (The test design
expects the CPU profiler to under-report samples relative to the
execution tracer.)
Fixes#53378
Change-Id: I60c27de4c69b454057d28a3b6e12d70369de4c4f
Reviewed-on: https://go-review.googlesource.com/c/go/+/413457
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Rhys Hiltner <rhys@justin.tv>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
