This copies the logic we use in runtime/cgo, when calling pthread_create,
into runtime proper, when calling newosproc.
We only do this in newosproc, not newosproc0, because in newosproc0 we
need a nosplit function literal, and we need to pass arguments to it through
newosproc, which is a pain. Also newosproc0 is only called at process
startup, when thread creation is less likely to fail anyhow.
Fixes#49438
Change-Id: Ia26813952fdbae8aaad5904c9102269900a07ba9
Reviewed-on: https://go-review.googlesource.com/c/go/+/447175
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
It will behave as if teh command-line-arguments module was vendored,
with zero dependencies, much as -mod=readonly works.
Fixes#56536
Change-Id: Ia02dda2f90d006b5917c3ae002ccb714987f27a3
Reviewed-on: https://go-review.googlesource.com/c/go/+/448019
Reviewed-by: Michael Matloob <matloob@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Michael Matloob <matloob@golang.org>
This can be used to provide better instruction selection for assembly
implementations without having to implement two variants and dynamic
runtime selections when a newer GOPPC64 value is used.
Change-Id: I4331037d57b128137280aa7904d08d362391f81e
Reviewed-on: https://go-review.googlesource.com/c/go/+/449115
Run-TryBot: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
This package is only used by tests anyway, but might as well
remove the cgo use on macOS so that it doesn't show up as
a cgo user, as part of our overall strategy to remove cgo use
in the standard library on macOS.
Change-Id: I5a1a39ed56373385f9d43a5e17098035dc1a451a
Reviewed-on: https://go-review.googlesource.com/c/go/+/449315
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Reviewed-by: Ian Lance Taylor <iant@google.com>
We had a special case to zero out the Target field for package
"unsafe", which is not imported from a normal object file.
As of CL 449376 that special case has been folded into go/build's
logic for setting the PkgObj field, so the special case in
cmd/go/internal/load has become redundant.
(Noticed while investigating CL 449376.)
Updates #47257.
Updates #56687.
Change-Id: I1668123aa6230097aa75e55380d3e2c7937c4b64
Reviewed-on: https://go-review.googlesource.com/c/go/+/449515
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Reviewed-by: Michael Matloob <matloob@golang.org>
Use a single writeErrStr function. Avoid using global variables.
Use a single version of some error messages rather than duplicating
the messages in OS-specific files.
Change-Id: If259fbe78faf797f0a21337d14472160ca03efa0
Reviewed-on: https://go-review.googlesource.com/c/go/+/447055
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
CL 107196 introduced a default TCP keepalive interval for Dialer and TCPListener (used by both ListenConfig and ListenTCP). Leaving DialTCP out was likely an oversight.
DialTCP's documentation says it "acts like Dial". Therefore it's natural to also expect DialTCP to enable TCP keepalive by default.
This commit addresses this disparity by moving the enablement logic down to the newTCPConn function, which is used by both dialer and listener.
Fixes#49345
Change-Id: I99c08b161c468ed0b993d1dbd2bd0d7e803f3826
GitHub-Last-Rev: 5c2f1cb0fb
GitHub-Pull-Request: golang/go#56565
Reviewed-on: https://go-review.googlesource.com/c/go/+/447917
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In some places of the HTTP transport errors were constructed that
wrapped other errors without providing the ability to call
`errors.Unwrap` on them to get the underlying error.
These places have been fixed to use `%w` when using `fmt.Errorf`
or to implement `Unwrap() error`.
Fixes#56435
Change-Id: Ieed3359281574485c8d0b18298e25e5f1e14555c
GitHub-Last-Rev: 504efbc507
GitHub-Pull-Request: golang/go#56451
Reviewed-on: https://go-review.googlesource.com/c/go/+/445775
Reviewed-by: Damien Neil <dneil@google.com>
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This was the last piece of ref10 code, including the infamous "Christmas
tree" in scMulAdd, that approximately all Ed25519 implementations
inherited. Replace the whole scalar field implementation with a
fiat-crypto generated one, like those in crypto/internal/nistec/fiat.
The only complexity is the wide reduction (both for the 64-byte one and
for the clamped input). For that we do a limbed reduction suggested by
Frank Denis.
Some minor housekeeping and test changes from filippo.io/edwards25519
are included, as part of syncing with downstream.
Ignoring the autogenerated file, the diff is
268 insertions(+), 893 deletions(-)
George Tankersley signed the Individual CLA and authorized me to submit
this change on his behalf at the time he contributed it to
filippo.io/edwards25519.
Co-authored-by: George Tankersley <george.tankersley@gmail.com>
Change-Id: I4084b4d3813f36e16b3d8839df75da1b4fd7846b
Reviewed-on: https://go-review.googlesource.com/c/go/+/420454
Run-TryBot: Filippo Valsorda <filippo@golang.org>
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Reviewed-by: Roland Shoemaker <roland@golang.org>
Same as CL 448675 did in package reflect.
Change-Id: I26277d8dcf2d2e204724d6fa5cc6e1ad391633f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/448936
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
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Fixes#56173
Change-Id: I03a3ad769c99c0bdb78b1d757173d630879fd4dd
GitHub-Last-Rev: e3e31fa0b9
GitHub-Pull-Request: golang/go#56282
Reviewed-on: https://go-review.googlesource.com/c/go/+/443495
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Auto-Submit: Ian Lance Taylor <iant@google.com>
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It adds support for /etc/hosts aliases and fixes the difference between the glibc cgo and the go DNS resolver.
Examples: https://pastebin.com/Fv6UcAVrFixes#44741
Change-Id: I98c484fced900731fbad800278b296028a45f044
GitHub-Last-Rev: 3d47e44f11
GitHub-Pull-Request: golang/go#51004
Reviewed-on: https://go-review.googlesource.com/c/go/+/382996
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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The ResponseController type provides a discoverable interface
to optional methods implemented by ResponseWriters.
c := http.NewResponseController(w)
c.Flush()
vs.
if f, ok := w.(http.Flusher); ok {
f.Flush()
}
Add the ability to control per-request read and write deadlines
via the ResponseController SetReadDeadline and SetWriteDeadline
methods.
For #54136
Change-Id: I3f97de60d4c9ff150cda559ef86c6620eee665d2
Reviewed-on: https://go-review.googlesource.com/c/go/+/436890
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We don't seem to have tests verifying that handler reads from the
request body or writes to the response body time out properly.
Add some.
For #49837
For #56478
Change-Id: I0828edd6c86b071073fd1b22ccbb24f86114ab94
Reviewed-on: https://go-review.googlesource.com/c/go/+/446255
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
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AllPos truncates and overwrites its slice-storage input instead
of appending. This makes that clear.
Change-Id: I81653ff49a4a7d14fe9446fd6620943f3b20bbd3
Reviewed-on: https://go-review.googlesource.com/c/go/+/449478
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Reviewed-by: Keith Randall <khr@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
The compiler is too clever so the allocations are currently
avoided. Rewrite to make them actually allocate.
Change-Id: I9542e1365120b2ace318360883b0b01ed5670da7
Reviewed-on: https://go-review.googlesource.com/c/go/+/449476
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Package "builtin" is not a real, importable package; it exists only
for documentation. Package "unsafe" is not compiled into an object
file from its source code; instead, imports of "unsafe" are handled
specially by the compiler.
(In Go 1.19.3, package "unsafe" did not have an install target, while
package "builtin" did but that target was never written.)
Fixes#56687.
Updates #47257.
Change-Id: I1d1e90ff9e1629b80e0df93e1f7e17242c8dab69
Reviewed-on: https://go-review.googlesource.com/c/go/+/449376
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
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As of CL 448803, packages in GOROOT only have install targets when
they have cgo source files. When cgo is not enabled, that condition
is necessarily false, and no install target will exist.
For #47257.
Change-Id: I653a9c5f89d18a5841810f3de8d490bd7cb7e922
Reviewed-on: https://go-review.googlesource.com/c/go/+/449375
Run-TryBot: Bryan Mills <bcmills@google.com>
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Modified the fmahash gc debug flag to use this, and modified the
test to check for a hash match that includes inlining. Also
made the test non-short to ensure portability.
Note fma.go has been enhanced into an FMA test that requires
two separate FMAs in order to "fail"; if either one is 2-rounding,
then it "passes". (It neither passes nor fails here; its role
is to demonstrate that the FMAs are correctly reported; the
enhanced failure mode was discovered while testing the search
tool.)
Change-Id: I4e328e3654f442d498eac982135420abb59c5434
Reviewed-on: https://go-review.googlesource.com/c/go/+/448358
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The new "InvalidSyntaxTree" node in the error code declaration
inadvertently incremented the value of iota by 1. Fix this by moving it
to its own declaration.
Change-Id: I34b33a8caddbbb9e41f431321ec0e5863dc15055
Reviewed-on: https://go-review.googlesource.com/c/go/+/449475
Run-TryBot: Robert Findley <rfindley@google.com>
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When writing markdown for godoc, we can reference a method M of
a type T as [T.M]. This doesn't currently work for methods on generic
types because the declaration of the type parameter gets in the way.
(You'd have to write [T[P].M] and that doesn't parse, and even if it
did you'd have to spell "P" correctly.)
Get rid of the type parameter when building the list of Funcs so
[T.M] works in godoc if T is generic.
Change-Id: I8ef5264124a944967df3ce20ddd40a2447ff4187
Reviewed-on: https://go-review.googlesource.com/c/go/+/449236
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
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Since the first implementation of os/user, it's called C malloc
to allocate memory for buffers. However, the buffers are just
used for temporary storage, and we can just a []byte instead.
To make this work without causing cgo pointer errors, we move
the pwd and grp structs into C stack memory, and just return them.
It's OK to store a Go pointer on the C stack temporarily.
Change-Id: I9f8ffb6e51df1e585276c259fe99359d7835df87
Reviewed-on: https://go-review.googlesource.com/c/go/+/449335
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Reviewed-by: Russ Cox <rsc@golang.org>
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For #53821
Change-Id: I2e7c5376e6ca3e3dbb2f92ad771aed62fca8b793
GitHub-Last-Rev: b67ddf81ec
GitHub-Pull-Request: golang/go#54864
Reviewed-on: https://go-review.googlesource.com/c/go/+/428195
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When you run 'go env' or any command that needs to consider
what the default gcc flags are (such as 'go list net' or
'go list <any package with net as a dependency>'),
the go command runs gcc (or clang) a few times to see what
flags are available.
These runs can be quite expensive on some systems, particularly
Macs that seem to need to occasionally cache something before
gcc/clang can execute quickly.
To fix this, cache the derived information about gcc under a cache
key derived from the size and modification time of the compiler binary.
This is not foolproof, but it should be good enough.
% go install cmd/go
% time go env >/dev/null
0.22 real 0.01 user 0.01 sys
% time go env >/dev/null
0.03 real 0.01 user 0.01 sys
%
Fixes#50982.
Change-Id: Iba7955dd10f610f2793e1accbd2d06922f928faa
Reviewed-on: https://go-review.googlesource.com/c/go/+/392454
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When people add new API and get an all.bash failure,
they often don't know about the API checker at all.
Point to the README in the failure message, to try to
help them find what they need to know.
Change-Id: I6b148ec414d212033b371357a5e8c6ab79bb50a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/449015
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Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
crypto/rsa assumes RSA OAEP uses the same hash to be used for both the label
and the mask generation function. However, implementations in other languages,
such as Java and Python, allow these parameters to be specified independently.
This change allows the MGF hash to be specified independently for decrypt
operations in order to allow decrypting ciphertexts generated in other
environments.
Fixes: #19974
Change-Id: If453d628f0da354ceb3b52863f30087471670f7b
Reviewed-on: https://go-review.googlesource.com/c/go/+/418874
Auto-Submit: Andrew Bonventre <andybons@golang.org>
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Run-TryBot: Andrew Bonventre <andybons@golang.org>
Add test.
Fixes#20396
Change-Id: I89e9013eb338f831e1908e390b284794df78fb6b
Reviewed-on: https://go-review.googlesource.com/c/go/+/103875
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Non-regression tests are added.
Fixes#8068
Change-Id: Icb36c910bbf4955743b7aa8382002b2d9246fadc
Reviewed-on: https://go-review.googlesource.com/c/go/+/105636
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Updates #53003.
Change-Id: I076d1eb4bd0580002ad8008f3ca213c5edc951ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/427095
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
This reverts commit d154ef60a0.
This change made IsAbs return true for certain reserved filenames,
but does not consistently detect reserved names. For example,
"./COM1", "//./COM1", and (on some Windows versions) "COM1.txt"
all refer to the COM1 device, but IsAbs detects none of them.
Since NUL is not an absolute path, do not attempt to detect it
or other device paths in IsAbs. See #56217 for more discussion
of IsAbs and device paths.
For #56217.
Change-Id: If4bf81c7e1a2e8842206c7c5268555102140dae8
Reviewed-on: https://go-review.googlesource.com/c/go/+/448898
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
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Some file operations, notably Stat and Mkdir, special cased their
behavior when operating on a file named "NUL" (case-insensitive).
This check failed to account for the many other names of the NUL
device, as well as other non-NUL device files: "./nul", "//./nul",
"nul.txt" (on some Windows versions), "con", etc.
Remove the special case.
os.Mkdir("NUL") now returns no error. This is consonant with the
operating system's behavior: CreateDirectory("NUL") succeeds, as
does "MKDIR NUL" on the command line.
os.Stat("NUL") now follows the existing path for FILE_TYPE_CHAR devices,
returning a FileInfo which correctly reports the file as being a
character device.
os.Stat and os.File.Stat have common elements of their logic unified.
For #24482.
For #24556.
For #56217.
Change-Id: I7e70f45901127c9961166dd6dbfe0c4a10b4ab64
Reviewed-on: https://go-review.googlesource.com/c/go/+/448897
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Previously, the volumeNameLen function checked for UNC paths starting
with two slashes, a non-'.' character, and another slash. This misses
volume names such as "\\.\C:\".
The previous check for volume names rejects paths beginning
with "\\.". This is incorrect, because while these names are not
UNC paths, "\\.\C:\" is a DOS device path prefix indicating the
C: device. It also misses UNC path prefixes in the form
"\\.\UNC\server\share\".
The previous check for UNC paths also rejects any path with an
empty or missing host or share component. This leads to a number
of possibly-incorrect behaviors, such as Clean(`\\a`) returning `\a`.
Converting the semantically-significant `\\` prefix to a single `\`
seems wrong.
Consistently treat paths beginning with two separators as having
a volume prefix.
Update VolumeName to detect DOS device paths (`\\.\` or `\\?\`),
DOS device paths linking to UNC paths (`\\.\UNC\Server\Share`
or `\\?\UNC\Server\Share`), and UNC paths (`\\Server\Share\`).
Clean(`\\a`) = `\\a`
Join(`\\`, `a`, `b`) = `\\a\b`
In addition, normalize path separators in VolumeName for consistency
with other functions which Clean their result.
Fixes#56336
Change-Id: Id01c33029585bfffc313dcf0ad42ff6ac7ce42fd
Reviewed-on: https://go-review.googlesource.com/c/go/+/444280
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The "go test" and "go build" commands have special-case behavior when
passed "-o /dev/null". These checks are case-sensitive and assume that
os.DevNull is an absolute path. Windows filesystems are case-insensitive
and os.DevNull is NUL, which is not an absolute path.
CL 145220 changed filepath.IsAbs to report "NUL" as absolute to work
around this issue; that change is being rolled back and a better fix here
is to compare the value of -o against os.DevNull before attempting to
merge it with a base path. Make that fix.
On Windows, accept any capitilization of "NUL" as the null device.
This change doesn't cover every possible name for the null device, such
as "-o //./NUL", but this test is for efficiency rather than correctness.
Accepting just the most common name is fine.
For #56217.
Change-Id: I60b59b671789fc456074d3c8bc755a74ea8d5765
Reviewed-on: https://go-review.googlesource.com/c/go/+/449117
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Instead of hardcoding the set of five packages that depend on cgo to
decide whether a package should have an install target, make the
decision based on whether the package has any CgoFiles. This means that
in nocgo configurations, there will be no installed packages, and that
if an GOOS/GOARCH combination doesn't have cgo files we don't
unnecessarily install a .a.
Because the determination of whether a file is a CgoFile is made later
in the Import functions, the choice of whether to add a PkgObj for teh
case there are CgoFiles is moved later. One concern here is that in some
cases, PkgObj may be set differently in the case of the FindOnly mode,
since the determination is moved across the boundary. We might want
to always set PkgObj after the FindOnly boundary for consistency? cmd/go
doesn't seem to use it when calling Import with FindOnly.
Also remove internal/buildinternal/needs_install.go because we will be
checking whether to install based on the number of cgo files and it
might be overkill to make the NeedsInstalledDotA function be the
equivalent of len(input) > 0.
For #47257
Change-Id: I5f7f2137dc99aaeb2e2695c14e0222093a6b2407
Reviewed-on: https://go-review.googlesource.com/c/go/+/448803
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Michael Matloob <matloob@golang.org>
An upcoming change to the filepath package to make IsAbs("NUL")==false
on Windows will cause this test to fail, since it sets GOPATH=NUL and
GOPATH must be an absolute path.
Set GOPATH to the name of a text file instead. (The intent is that GOPATH
be set to a path that is not writable.)
For #56217.
Change-Id: I18e645fe11547d02d1a2e0e580085e6348c4009a
Reviewed-on: https://go-review.googlesource.com/c/go/+/448896
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
If fsys.Walk is called with a root directory that is a symlink, follow
the symlink when doing the walk. This allows for users setting their
current directory to a symlink to a module.
Fixes#50807
Change-Id: Ie65a7cb804b87dea632ea6c758c20adcfa62fcd4
Reviewed-on: https://go-review.googlesource.com/c/go/+/448360
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
If GOROOT is stale, test fail when commands unexpectedly write to GOROOT.
Include an message in the test failure indicating that this is a possible
and expected reason for the failure, and how to fix it.
For #48698.
Change-Id: I057c20260bab09aebf684e8f20794ab8fc0ede1e
Reviewed-on: https://go-review.googlesource.com/c/go/+/448895
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
Add a new "Action":"start" test2json event to mark the
start of the test binary execution. This adds useful information
to the JSON traces, and it also lets programs watching test
execution see the order in which the tests are being run,
because we arrange for the starts to happen sequentially.
Change-Id: I9fc865a486a55a7e9315f8686f59a2aa06455884
Reviewed-on: https://go-review.googlesource.com/c/go/+/448357
Run-TryBot: Russ Cox <rsc@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Change-Id: I163ea3a770f2228f67d4fb1374653566e64b91f7
Reviewed-on: https://go-review.googlesource.com/c/go/+/448575
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Fixes#53658. io.Copy() uses sendfile(2) to avoid allocating extra buffers when src is a file and dst is a TCPConn. However if src returns no bytes current logic treats it as failure and falls back to copying via user space. The following is a benchmark that illustrates the bug.
Benchmark: https://go.dev/play/p/zgZwpjUatSq
Before:
BenchmarkCopy-16 541006 2137 ns/op 4077 B/op 0 allocs/op
After:
BenchmarkCopy-16 490383 2365 ns/op 174 B/op 8 allocs/op
Change-Id: I703376d53b20e080c6204a73c96867cce16b24cf
GitHub-Last-Rev: 3a50be4f16
GitHub-Pull-Request: golang/go#53659
Reviewed-on: https://go-review.googlesource.com/c/go/+/415834
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
