This section is complete.
For #54202.
Change-Id: I304cc55a5b8ed53e8b8dff73a5feb5ef39207846
Reviewed-on: https://go-review.googlesource.com/c/go/+/455895
Run-TryBot: Michael Pratt <mpratt@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Add some basic material on the changes to code coverage testing
to the release notes.
For #54202.
Change-Id: I28200d43b4952ce8e8ecf46c8fe8e97c81d245e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/453857
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Than McIntosh <thanm@google.com>
Reviewed-by: Eli Bendersky <eliben@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
getpwnam_r and friends return the errno as the result,
not in the global errno. The code changes in CL 449316
inadvertently started using the global errno.
So if a lookup didn't fit in the first buffer size,
it was treated as not found instead of growing the buffer.
Fixes#56942.
Change-Id: Ic5904fbeb31161bccd858e5adb987e919fb3e9d9
Reviewed-on: https://go-review.googlesource.com/c/go/+/455815
Run-TryBot: Russ Cox <rsc@golang.org>
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Auto-Submit: Russ Cox <rsc@golang.org>
CL 424854 changed the unified IR writer's handling of type
declarations to write the underlying type rather than the RHS type
expression's type. This in turn allows us to simplify the go/types
importer, because now there's no need to delay caling SetUnderlying.
Fixes#57015.
Change-Id: I80caa61f6cad5b7f9d829939db733a66cfca621c
Reviewed-on: https://go-review.googlesource.com/c/go/+/424876
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
[Re-land of CL 424854, which was reverted as CL 425214.]
When handling a type declaration like:
```
type B A
```
unified IR has been writing out that B's underlying type is A, rather
than the underlying type of A.
This is a bit awkward to implement and adds complexity to importers,
who need to handle resolving the underlying type themselves. But it
was necessary to handle when A was declared like:
```
//go:notinheap
type A int
```
Because we expected A's not-in-heap'ness to be conferred to B, which
required knowing that A was on the path from B to its actual
underlying type int.
However, since #46731 was accepted, we no longer need to support this
case. Instead we can write out B's actual underlying type.
One stumbling point though is the existing code for exporting
interfaces doesn't work for the underlying type of `comparable`, which
is now needed to implement `type C comparable`. As a bit of a hack, we
we instead export its underlying type as `interface{ comparable }`.
Fixes#54512.
Change-Id: I9aa087e0a277527003195ebc7f4fbba6922e788c
Reviewed-on: https://go-review.googlesource.com/c/go/+/455279
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
Do not permit access to Windows reserved device names (NUL, COM1, etc.)
via os.DirFS and http.Dir filesystems.
Avoid escapes from os.DirFS(`\`) on Windows. DirFS would join the
the root to the relative path with a path separator, making
os.DirFS(`\`).Open(`/foo/bar`) open the path `\\foo\bar`, which is
a UNC name. Not only does this not open the intended file, but permits
reference to any file on the system rather than only files on the
current drive.
Make os.DirFS("") invalid, with all file access failing. Previously,
a root of "" was interpreted as "/", which is surprising and probably
unintentional.
Fixes CVE-2022-41720
Fixes#56694
Change-Id: I275b5fa391e6ad7404309ea98ccc97405942e0f0
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1663834
Reviewed-by: Tatiana Bradley <tatianabradley@google.com>
Reviewed-by: Julie Qiu <julieqiu@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/455362
Reviewed-by: Michael Pratt <mpratt@google.com>
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Run-TryBot: Jenny Rakoczy <jenny@golang.org>
Reviewed-on: https://go-review.googlesource.com/c/go/+/455716
Reviewed-by: Jenny Rakoczy <jenny@golang.org>
Run-TryBot: Damien Neil <dneil@google.com>
Now that we have newer C compilers on the Windows builders, they
should fully support reproducible builds.
Updates #35006.
Change-Id: I0a8995fe327067c9e73e5578c385ea01ae5dee5d
Reviewed-on: https://go-review.googlesource.com/c/go/+/454504
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
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CL 454475 switched from checking CompressedSize to UncompressedSize
when determining if we should consider an archive malformed because
it contains data and added a test for an example of this (a JAR). We
should also remove the hasDataDescriptor check, since that is basically
an alias for CompressedSize > 0. The test didn't catch this because we
didn't actually attempt to read from the returned reader.
Change-Id: Ibc4c1aa9c3a733f3ebf4a956d1e2f8f4900a29cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/455523
Run-TryBot: Roland Shoemaker <roland@golang.org>
Reviewed-by: Julie Qiu <julieqiu@google.com>
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These environment variables affect cmd/dist, and in turn run.bash.
They exist primarily for the Go build system, but are still needed
sometimes when investigating problems. Document them in one place.
Fixes#46054.
Change-Id: I5dea2ac79b0d203d2f3c9ec2980382f62bead5cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/455517
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
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It is possible that CL 455166 fixes this. Try unskipping the test
and see. If it fails again we can skip it again.
Fixes#48655.
Change-Id: Ia81b06cb7608f74adb276bc018e8fc840285bc11
Reviewed-on: https://go-review.googlesource.com/c/go/+/455358
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
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Pass -Wl,--no-insert-timestamp to the external linker on windows, so
as to suppress generation of the PE file header data/time stamp. This
is in order to make it possible to get reproducible CGO builds on
windows (note that we already zero the timestamp field in question for
internal linkage).
Updates #35006.
Change-Id: I3d69cf1fd32e099bd9bb4b0431a4c5f43e4b08f3
Reviewed-on: https://go-review.googlesource.com/c/go/+/455535
Run-TryBot: Than McIntosh <thanm@google.com>
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Provide file/line numbers for errors when we have them.
Make the assembler error text closer to the equivalent errors from the compiler.
Abort further processing when we come across errors.
Fixes#53994
Change-Id: I4d6a037d6d713c1329923fce4c1189b5609f3660
Reviewed-on: https://go-review.googlesource.com/c/go/+/455276
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Keith Randall <khr@google.com>
Auto-Submit: Keith Randall <khr@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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We know the type argument against which constraint type inference fails:
print the type argument instead of the corresponding type parameter.
Fixes#57096.
Change-Id: Ia1da9c87fac6f8062e4d534b82e895fa4617fddc
Reviewed-on: https://go-review.googlesource.com/c/go/+/455278
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
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Put comments about what operations do per block of related opcodes
instead of on each line. This is less repetitive and lets us be a bit
more verbose in our descriptions.
Doesn't change the generated code at all.
Change-Id: I98fbd4029df6537b10aac2113a00df121d0fca1b
Reviewed-on: https://go-review.googlesource.com/c/go/+/433736
Auto-Submit: Keith Randall <khr@google.com>
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Keith Randall <khr@google.com>
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In the profiler, when unwinding the stack, we have special
handling for VDSO calls. Currently, the special handling is only
used when the normal unwinding fails. If the signal lands in the
function that makes the VDSO call (e.g. nanotime1) and after the
stack switch, the normal unwinding doesn't fail but gets a stack
trace with exactly one frame (the nanotime1 frame). The stack
trace stops because of the stack switch. This 1-frame stack trace
is not as helpful. Instead, if vdsoSP is set, we know we are in
VDSO call or right before or after it, so use vdsoPC and vdsoSP
for unwinding. Do the same for libcall.
Also remove _TraceTrap for VDSO unwinding, as vdsoPC and vdsoSP
correspond to a call, not an interrupted instruction.
Fixes#56574.
Change-Id: I799aa7644d0c1e2715ab038a9eef49481dd3a7f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/455166
Run-TryBot: Cherry Mui <cherryyz@google.com>
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As with all the stuff that call cgo from net package.
Change-Id: I7c42ae44a1d47f4f949b203682217498fcdba92a
GitHub-Last-Rev: 70406493bb
GitHub-Pull-Request: golang/go#57043
Reviewed-on: https://go-review.googlesource.com/c/go/+/454697
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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This adds the nonPGO, non-coverage compiler changes
for the 1.20 release. There's not that much user
visible change.
For #54202.
Change-Id: Ib2964ed5f7e73bb89c720d09b868ab79682f5070
Reviewed-on: https://go-review.googlesource.com/c/go/+/454536
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Without it, at least on ARM64 with older BFD linker, it will
include the file of the object file (which is of a temporary path)
as a debug symbol into the binary, causing the build to be
nondeterministic. Adding a .file directive makes it to create a
STT_FILE symbol with deterministic input, and prevent the linker
creating one using the temporary object file path.
Fixes#57035.
Change-Id: I3ab716b240f60f7a891af2f7e10b467df67d1f31
Reviewed-on: https://go-review.googlesource.com/c/go/+/454838
Reviewed-by: Bryan Mills <bcmills@google.com>
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Change-Id: I4cff6b2a1fed6acdf754539c3c53a61eaa3b3f84
Reviewed-on: https://go-review.googlesource.com/c/go/+/450176
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Martin Möhrmann <moehrmann@google.com>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
Pointed out in review of CL 453602,
but it looks like I forgot to re-upload before submitting.
Change-Id: I8f4fac52ea0f904f6f9b06e13fc8ed2e778f2360
Reviewed-on: https://go-review.googlesource.com/c/go/+/454835
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Reviewed-by: Julie Qiu <julieqiu@google.com>
This was a regression test added for a 'git' command line
used for build stamping. Unfortunately, 'gpg' has proved to
be extremely fragile:
* In recent versions, it appears to always require 'gpg-agent' to be
installed for anything involving secret keys, but for some reason is
not normally marked as requiring gpg-agent in Debian's package
manager.
* It tries to create a Unix domain socket in a subdirectory of $TMPDIR
without checking the path length, which fails when $TMPDIR is too
long to fit in the 'sun_path' field of a sockaddr_un struct (which
typically tops out somewhere between 92 and 108 bytes).
We could theoretically address those by artificially reducing the
script's TMPDIR length and checking for gpg-agent in addition to gpg,
but arguably those should both be fixed upstream instead. On balance,
the incremental value that this test provides does not seem worth the
complexity of dealing with such a fragile third-party tool.
Updates #50675.
Updates #48802.
Fixes#57034.
Change-Id: Ia3288c2f84f8db86ddfa139b4d1c0112d67079ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/454502
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(Until it can be made hermetic.)
The gopkg.in service has had a lot of flakiness lately. Go users in
general are isolated from that flakiness by the Go module mirror
(proxy.golang.org), but this test intentionally bypasses the module
mirror because the mirror itself uses cmd/go to download the module.
In the long term, we can redirect the gopkg.in URL to the local
(in-process) vcweb server added for #27494.
In the meantime, let's skip the test to reduce the impact of upstream
outages.
For #54503.
Change-Id: Icf3de7ca416db548e53864a71776fe22b444fcea
Reviewed-on: https://go-review.googlesource.com/c/go/+/454503
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Reviewed-by: Heschi Kreinick <heschi@google.com>
Historically, on Windows filepath.Join("c:", elt) does not insert
a path separator between "c:" and elt, but preserves leading slashes
in elt. Restore this behavior, which was inadvertently changed by
CL 444280.
Fixes#56988
Change-Id: Id728bf311f4093264f8c067d8b801ea9ebef5b5f
Reviewed-on: https://go-review.googlesource.com/c/go/+/453497
Reviewed-by: Bryan Mills <bcmills@google.com>
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gcimporter.TestImportTypeparamTests still needs to create full export
data because it loads lots of source files from GOROOT/test that
expect to be able to import arbitrary subsets of the standard library,
so we now skip it in short mode.
On a clean build cache, this reduces
'go test -short cmd/compile/internal/importer go/internal/gcimporter'
on my machine from 21–28s per test to <6s per test.
Updates #56967.
Updates #47257.
Change-Id: I8fd80293ab135e0d2d213529b74e0ca6429cdfc7
Reviewed-on: https://go-review.googlesource.com/c/go/+/454498
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Reviewed-by: Michael Matloob <matloob@golang.org>
We're unlikely to get this package out of the door all that soon. For
now add a note that SetFallbackRoots will be most commonly used with
an TBA package, and link the tracking issue.
We could also just remove the "It will most commonly be used ..."
sentence.
Change-Id: Ie96134d757f5b4c69f1878d53c92b5ed602671e4
Reviewed-on: https://go-review.googlesource.com/c/go/+/454056
Reviewed-by: Julie Qiu <julieqiu@google.com>
Run-TryBot: Roland Shoemaker <roland@golang.org>
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Auto-Submit: Roland Shoemaker <roland@golang.org>
The darwin arm64 port was added in Go 1.16 and is a first-class port,
so it should be tracked by cmd/api. This CL does that, backfilling
API files as needed.
It also removes a spurious cgo.Incomplete API feature.
Change-Id: Idd995677915e81bf1c2e09be65b31e084b75f668
Reviewed-on: https://go-review.googlesource.com/c/go/+/453260
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
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End-of-line comments are not doc comments,
so Deprecated notes in them are not recognized
as deprecation notices. Rewrite the comments.
Change-Id: I275fa9aec403132fda45853e52daa22bc06fcd36
Reviewed-on: https://go-review.googlesource.com/c/go/+/453617
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
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Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Ian Lance Taylor <iant@google.com>
End-of-line comments are not doc comments,
so Deprecated notes in them are not recognized
as deprecation notices. Rewrite the comments.
Change-Id: Idc4681924f9a7e9ead62f672ef8a763e70db1f0f
Reviewed-on: https://go-review.googlesource.com/c/go/+/453616
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
End-of-line comments are not doc comments,
so Deprecated notes in them are not recognized
as deprecation notices. Rewrite the comments.
Change-Id: Idb19603d7fc2ec8e3a2f74bacb74fbbec5583d20
Reviewed-on: https://go-review.googlesource.com/c/go/+/453615
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Auto-Submit: Russ Cox <rsc@golang.org>
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Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Deprecating an API creates notices that go out to potentially
millions of Go developers encouraging them to update their code.
The choice to deprecate an API is as important as the choice to
add a new API. We should track those and make them explicit.
This will also ensure that deprecations go through proposal review.
Change-Id: Ide9f60c32e5a88fb133e0dfedd984b8b0f70f510
Reviewed-on: https://go-review.googlesource.com/c/go/+/453259
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Reviewed-by: David Chase <drchase@google.com>
A potential user did not realize Deps included all transitive dependencies,
not just direct dependencies of the main module. Clarify that and add
various other useful information.
Change-Id: I5b8e1314bb26092edbcc090ba8eb9859f0a70662
Reviewed-on: https://go-review.googlesource.com/c/go/+/453602
Run-TryBot: Russ Cox <rsc@golang.org>
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Previously, we were using internal/goroot.PkgfileMap to locate
cached export data. However, PkgfileMap regenerates export data
for the entire standard library, whereas gcimporter may only need
a single package.
Under the new approach, we load the export data (still using
'go list -export') for each GOROOT package individually, avoiding work
to rebuild export data for packages that are not needed.
This is a tradeoff: if most packages in GOROOT are actually needed, we
end up making many more calls to 'go list', and may build packages
sequentially instead of in parallel (but with lower latency to start
using the export data from the earlier packages).
On my workstation, starting from a clean cache for each run,
this reduces the wall time of
'go test go/internal/gcimporter -run=TestImportedTypes'
from 22s real time (2m10s user time) to 6s real (27s user),
and only increases 'go test go/internal/gcimporter' from
28s real (2m16s user) to 30s real (2m19s user).
Updates #56967.
Updates #47257.
Change-Id: I22556acdd9b1acc56533ed4c2728ea29b585c073
Reviewed-on: https://go-review.googlesource.com/c/go/+/454497
Reviewed-by: Michael Matloob <matloob@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
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pkg/obj will be empty, so just remove it.
pkg/$GOOS_$GOARCH will be empty unless the user has specified
GODEBUG=installgoroot=all, so check if it's empty, and if so, delete
it.
Also remove xreaddirfiles, which is unused.
Also remove the copy of pkg/$GOOS_$GOARCH in the cmd/go test
TestNewReleaseRebuildsStalePackagesInGOPATH. The directory is empty so
copying it has no effect.
For #47257
Change-Id: Ief90b882d157bd16078cd5d2b83a915bfc831f9a
Reviewed-on: https://go-review.googlesource.com/c/go/+/453496
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Glibc returns size > bufSize, when the entire dns reply does not fit inside the provided buffer.
Change-Id: Ie1c1c6a3411880bd8bdb4371f1f1b7bcce837ea2
GitHub-Last-Rev: 488cd3ed0d
GitHub-Pull-Request: golang/go#57020
Reviewed-on: https://go-review.googlesource.com/c/go/+/454395
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Run-TryBot: Ian Lance Taylor <iant@google.com>
The comment copy pasted from the permuteInitialBlock and should be fixed.
Change-Id: I101f1deceadf9b0480e5b679e4e237bda601950b
GitHub-Last-Rev: 7662df772e
GitHub-Pull-Request: golang/go#56982
Reviewed-on: https://go-review.googlesource.com/c/go/+/453995
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Reviewed-by: Russ Cox <rsc@golang.org>
For #54202.
For #56548.
Change-Id: If2b9e41813c3e1c8d373469a40e1bd0bd5ea2b16
Reviewed-on: https://go-review.googlesource.com/c/go/+/454595
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Bypass: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
The test attempted to find all stdlib packages by scanning
pkg/$GOOS_$GOARCH for .a files and then tried to import all of them.
Now that .a files are no longer being placed there, the test is a
noop. Fix this by using go list std (and filtering out testonly
packages) and trying to import all of those to recreate what the test
intended to do.
This also removes a dependency on the pkg/$GOOS_$GOARCH directory
which will stop being produced by dist in CL 453496.
For #47257
Change-Id: I7c1944a89db9da9269def3d64a11408a60d73d46
Reviewed-on: https://go-review.googlesource.com/c/go/+/453858
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Michael Matloob <matloob@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
