Fixes#41702Fixes#42023
Change-Id: If07f40b1d73b8f276ee28ffb8b7214175e56c24d
Reviewed-on: https://go-review.googlesource.com/c/go/+/262817
Trust: Ian Lance Taylor <iant@golang.org>
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Illumos supports the accept4 syscall, use it in internal/poll.accept
like on other platforms.
Add Accept4 to package syscall despite the package being frozen. The
other option would have been to add this to internal/syscall/unix, but
adding it to syscall avoids duplicating a lot of code in internal/poll
and net/internal/socktest. Also, all other platforms supporting the
accept4 syscall already export Accept4.
Follow CL 97196, CL 40895 and CL 94295
Change-Id: I13b32f0163a683840c02b16722730d9dfdb98f56
Reviewed-on: https://go-review.googlesource.com/c/go/+/256101
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The Query function allows the caller to specify the current version of
the requested module, but the QueryPattern function is missing that
parameter: instead, it always assumes that the current version is the
one selected from the global build list.
This change removes that assumption, instead adding a callback
function to determine the current version. (The callback is currently
invoked once per candidate module, regardless of whether that module
exists, but in a future change we can refactor it to invoke the
callback only when needed.)
For #36460
For #40775
Change-Id: I001a4a8ab24f5b4fcc66a670d9bd305b47e948ba
Reviewed-on: https://go-review.googlesource.com/c/go/+/261640
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'go mod tidy' has been able to use replaced versions since CL 152739,
but 'go get' failed for many of the same paths. Now that we are
recommending 'go get' more aggressively due to #40728, we should make
that work too.
In the future, we might consider factoring out the new replacementRepo
type so that 'go list' can report the new versions as well.
For #41577
For #41416
For #37438
Updates #26241
Change-Id: I9140c556424b584fdd9bdd0a747842774664a7d8
Reviewed-on: https://go-review.googlesource.com/c/go/+/258220
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It was added in CL 240740 to fix#39978
but without any discussion of the exported API.
The error can still be returned to fix the issue,
without adding new public API to package io.
Also fix the error message to refer to lower-case write
like the other errors in the package.
Change-Id: I134de5eaf3ac903d73913c5cadcde904c5255d79
Reviewed-on: https://go-review.googlesource.com/c/go/+/262877
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On 386 and arm, unaligned 64-bit atomics aren't safe, so we check for
this and panic. Currently, we panic by dereferencing nil, which may be
expedient but is pretty user-hostile since it gives no hint of what
the actual problem was.
This CL replaces this with an actual panic. The only subtlety here is
now the atomic assembly implementations are calling back into Go, so
they have to play nicely with stack maps and stack scanning. On 386,
this just requires declaring NO_LOCAL_POINTERS. On arm, this is
somewhat more complicated: first, we have to move the alignment check
into the functions that have Go signatures. Then we have to support
both the tail call from these functions to the underlying
implementation (which requires that they have no frame) and the call
into Go to panic (which requires that they have a frame). We resolve
this by forcing them to have no frame and setting up the frame
manually just before the panic call.
Change-Id: I19f1e860045df64088013db37a18acea47342c69
Reviewed-on: https://go-review.googlesource.com/c/go/+/262778
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This drops package prefixes from the assembly code on 386 and arm. In
addition to just being nicer, this allows the assembler to
automatically pick up the argument stack map from the Go signatures of
these functions. This doesn't matter right now because these functions
never call back out to Go, but prepares us for the next CL.
Change-Id: I90fed7d4dd63ad49274529c62804211b6390e2e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/262777
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Makes *Request.write always close the body, so that callers no longer
have to close the body on returned errors, which was the trigger for
double-close behavior.
Fixes#40382
Change-Id: I128f7ec70415f240d82154cfca134b3f692191e3
Reviewed-on: https://go-review.googlesource.com/c/go/+/257819
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Trust: Damien Neil <dneil@google.com>
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This is primarily aimed at client requests where the user can supply
their own io.ReadCloser, but also clarifies server request behavior.
A server request body can be one of:
- *body
- *http2RequestBody
- *expectContinueReader
- *maxBytesReader
Of those, *expectContinueReader did not meet these expectations, so this
change also removes the data race.
Change-Id: Id4f1ae573d938347b1123a7b612b271aabb045a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/251087
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
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CL 196963 removed last usages of deltaNewFile, this CL remove it. While
at it, move the comment to go/internal/gcimporter.
Change-Id: Ieea47db405cf43744689f50b79be8ca710e21c85
Reviewed-on: https://go-review.googlesource.com/c/go/+/263077
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In preparation for moving os.FileInfo into io/fs.
Also keep syscall from depending on io again.
We want to keep them separated, in case io ever
needs to start depending on time.
For #41190.
Change-Id: I98350fa03accf4a20c75ddebb0e961aa1ccccd2c
Reviewed-on: https://go-review.googlesource.com/c/go/+/243905
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Apparently I never actually understood the new file table in Go
object files. The PC value stream actually encodes the file index
in the per-CU table. I thought it was indexing into a per-function
table, which then contains index to the per-CU table. Remove the
extra indirection.
Change-Id: I0aea5629f7b3888ebe3a04fea437aa15ce89519e
Reviewed-on: https://go-review.googlesource.com/c/go/+/262779
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Reviewed-by: Jeremy Faller <jeremy@golang.org>
In https://golang.org/cl/16528, a goto loop was chosen over a regular
for loop since that would make the function inlinable.
Thanks to the recent https://golang.org/cl/256459, for loops without a
label can now be inlined. So we can undo the workaround and simplify the
code.
Also add the function to TestIntendedInlining, which passes both before
and after the change, as expected.
For #14768.
Change-Id: Ie5df55a6bcb07c538ca331eef2f908807ff0b516
Reviewed-on: https://go-review.googlesource.com/c/go/+/263037
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From a comment in CL 262341. It makes more sense in import.go than in
mvs.go.
Change-Id: If4dfa1091077e110c5041bc849d99bc0be2bd8e2
Reviewed-on: https://go-review.googlesource.com/c/go/+/262780
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When a fix was made at the end of the last release related to
NOPs, it was discovered that the ppc64.s testcase was out of date
and contained comments that weren't being processed. Essentially the
instructions in that test were being assembled but there was no
verification that the encodings weres correct. The ppc64enc.s file
was mostly complete and included the valid encodings for verification.
This change moves ppc64enc.s to ppc64.s and adds the instructions
that were missing.
This also adds a minor fix to asm9.go on the assembly of the
addex that was discovered during this testing.
Change-Id: Iaada1563b137849ad195fa88f32ecc9ab3e1e95f
Reviewed-on: https://go-review.googlesource.com/c/go/+/260217
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- Describe requirements on Less more precisely.
- Standardize on x for the variable name of the data being sorted
(was variously a, p, slice).
- Many other minor wording changes.
Fixes#41951.
Change-Id: Ic9e222a53ec035fcc3b5ddfc7f0eefbe1bb2890d
Reviewed-on: https://go-review.googlesource.com/c/go/+/262657
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This creates space for a different kind of extension field
in LSym without making the struct any larger.
(There are many LSym, so we care about keeping the struct small.)
Change-Id: Ib16edb9e15f54c2a7351c8b875e19684058711e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/243943
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Pass the trimpath flag to cmd/compile to use the correct file paths
for files that are overlaid: that is, the "destination" path in the
overlay's Replace mapping rather than the "source" path.
Also fix paths to go source files provided to the gccgo compiler.
For #39958
Change-Id: I3741aeb2272bd0d5aa32cb28133b61e58264fd39
Reviewed-on: https://go-review.googlesource.com/c/go/+/257198
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This CL replaces the ad hoc and duplicated logic for detecting
inlinable calls with a single "inlCallee" function, which uses the
"staticValue" helper function introduced in an earlier commit.
Updates #41474.
Change-Id: I103d4091b10366fce1344ef2501222b7df68f21d
Reviewed-on: https://go-review.googlesource.com/c/go/+/256460
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Trust: Matthew Dempsky <mdempsky@google.com>
On current macOS versions a program that receives a signal during an
execve can fail with a SIGILL signal. This appears to be a macOS
kernel bug. It has been reported to Apple.
This CL partially works around the problem by using execLock to not
send preemption signals during execve. Of course some other stray
signal could occur, but at least we can avoid exacerbating the problem.
We can't simply disable signals, as that would mean that the exec'ed
process would start with all signals blocked, which it likely does not
expect.
Fixes#41702
Change-Id: I91b0add967b315671ddcf73269c4d30136e579b4
Reviewed-on: https://go-review.googlesource.com/c/go/+/262438
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We already allow inlining "if" and "goto" statements, so we might as
well allow "for" loops too. The majority of frontend support is
already there too.
The critical missing feature at the moment is that inlining doesn't
properly reassociate OLABEL nodes with their control statement (e.g.,
OFOR) after inlining. This eventually causes SSA construction to fail.
As a workaround, this CL only enables inlining for unlabeled "for"
loops. It's left to a (yet unplanned) future CL to add support for
labeled "for" loops.
The increased opportunity for inlining leads to a small growth in
binary size. For example:
$ size go.old go.new
text data bss dec hex filename
9740163 320064 230656 10290883 9d06c3 go.old
9793399 320064 230656 10344119 9dd6b7 go.new
Updates #14768.
Fixes#41474.
Change-Id: I827db0b2b9d9fa2934db05caf6baa463f0cd032a
Reviewed-on: https://go-review.googlesource.com/c/go/+/256459
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Escape analysis is currently very naive about identifying calls to
known functions: it only recognizes direct calls to a declared
function, or direct calls to a closure.
This CL adds a new "staticValue" helper function that can trace back
through local variables that were initialized and never reassigned
based on a similar optimization already used by inlining. (And to be
used by inlining in a followup CL.)
Updates #41474.
Change-Id: I8204fd3b1e150ab77a27f583985cf099a8572b2e
Reviewed-on: https://go-review.googlesource.com/c/go/+/256458
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Normally, when variables are declared and initialized using ":=", we
set the variable's n.Name.Defn to point to the initialization
assignment node (i.e., OAS or OAS2). Further, some frontend
optimizations look for variables that are initialized but never
reassigned.
However, when inl.go inlines calls, it was declaring the inlined
variables, and then separately assigning to them. This CL changes
inl.go tweaks the AST to fit the combined declaration+initialization
pattern.
This isn't terribly useful by itself, but it allows further followup
optimizations.
Updates #41474.
Change-Id: I62a9752c60414305679e0ed15a6563baa0224efa
Reviewed-on: https://go-review.googlesource.com/c/go/+/256457
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On a negative answer, the assignop and convertop functions write the
reason why to a string pointer passed as an argument, likely a C-ism
leftover since the compiler's machine assisted translation to Go.
This change makes why a return parameter.
It also fixes a few places where the assignop/convertop result was
compared to 0. While OXXX's value may be zero now, using the named
constant is more robust.
Change-Id: Id9147ed4c1b97d658d30a2f778f876b7867006b4
Reviewed-on: https://go-review.googlesource.com/c/go/+/261857
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Trust: Alberto Donizetti <alb.donizetti@gmail.com>
Change-Id: I576a596ed8e9ce14e3750031d0e338e9276eff1e
Reviewed-on: https://go-review.googlesource.com/c/go/+/262537
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L1337 in fmt.go can be checked just by using "!n.Type.IsUntyped".
Passes toolstash-check.
Change-Id: I5b0c81543bc929367f70713d0ca40b289f905b48
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Handle calls to symbols that are SDYNIMPORT when linking internally on arm64.
Update #36435
Change-Id: I8b5421171bf471cf31c91d90b8ba99511d2c9e2a
Reviewed-on: https://go-review.googlesource.com/c/go/+/250181
Trust: Joel Sing <joel@sing.id.au>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
debugCachedWork and all of its dependent fields and code were added to
aid in debugging issue #27993. Now that the source of the problem is
known and mitigated (via the extra work check after STW in gcMarkDone),
these extra checks are no longer required and simply make the code more
difficult to follow.
Remove it all.
Updates #27993
Change-Id: I594beedd5ca61733ba9cc9eaad8f80ea92df1a0d
Reviewed-on: https://go-review.googlesource.com/c/go/+/262350
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Add check in cmd/go/internal/work.BuildInit and
cmd/go/internal/envcmd.checkEnvWrite.
Fixes#38372
Change-Id: I196ea93a0469e4667ef785f7c1dc4574bdf7ff78
Reviewed-on: https://go-review.googlesource.com/c/go/+/228517
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Currently, there are several panics in token that simply say "illegal!". This CL
adds the values.
This is valuable when the token call is wrapped under several layers and you
can't easily see which value is being passed to token.
Change-Id: Ib04b55cafcd9b9ec6820dcf416fc4d49afaea15f
Reviewed-on: https://go-review.googlesource.com/c/go/+/262017
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Add support of internal linking on darwin/arm64 (macOS).
Still incomplete. Pure Go binaries work. Cgo doesn't. TLS is not
set up when cgo is not used (as before) (so asynchronous
preemption is not enabled).
Internal linking is not enabled by default but can be requested
via -ldflags=-linkmode=internal.
Updates #38485.
Change-Id: I1e0c81b6028edcb1ac26dcdafeb9bb3f788cf732
Reviewed-on: https://go-review.googlesource.com/c/go/+/261643
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This changes checks the signature generated during CreateCertificate
and returns an error if the verification fails. A benchmark is also
added. For RSA keys the delta looks to be insignificant, but for
ECDSA keys it introduces a much larger delta which is not ideal.
name old time/op new time/op delta
RSA_2048-8 1.38ms ± 6% 1.41ms ± 2% ~ (p=0.182 n=10)
ECDSA_P256-8 42.6µs ± 4% 116.8µs ± 4% +174.00% (p=0.000 n=1
Fixes#40458
Change-Id: I22827795bb9bb6868b4fa47391927db1d3bc19a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/259697
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When rejecting a request with an unsupported HTTP protocol version,
return a 505 error ("HTTP Version Not Supported") instead of 400.
Fixes#40454.
Change-Id: I0269f0f5755d90d1b772ba0094a6bb24b5eb4701
Reviewed-on: https://go-review.googlesource.com/c/go/+/261977
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Research showed that this interface is defined frequently enough in
real-world usage to justify its addition to the standard library.
Fixes#40962
Change-Id: I522fe8f9b8753c3fa42ccc1def49611cf88cd340
GitHub-Last-Rev: 6a45be66b4
GitHub-Pull-Request: golang/go#41939
Reviewed-on: https://go-review.googlesource.com/c/go/+/261577
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
This brings in CL 261725, which applies the vet buildtag checker
to ignored files.
For #41184.
Change-Id: I5f241db5a71fa84d0af0b9e9f8a75ff5bb3dd116
Reviewed-on: https://go-review.googlesource.com/c/go/+/261958
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Follow-up for CL 261363 which had to retain the fat tz data format due
to failing test.
The reason for the failed tests was that when caching location data, the
extended time format past the end of zone transitions was not
considered. The respective change was introduced in (*Location).lookup
by CL 215539.
This slims down zoneinfo.zip (and thus also the embedded copy in
time/tzdata) by ~350KB.
Change-Id: I412f79de98ba45358b8696aca784999b3479135e
Reviewed-on: https://go-review.googlesource.com/c/go/+/261877
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This was addressed by CL 2816 and the same comment was deleted from
asm_linux_386.s.
Change-Id: Icc797993161d67e7c4f4cdb11c2b96ac88e00dd9
Reviewed-on: https://go-review.googlesource.com/c/go/+/261458
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Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
The Node type has shortcuts to access bool and int Values:
func (n *Node) Int64() int64
for n.Val().U.(*Mpint).Int64()
func (n *Node) Bool() bool
for n.Val().U.(bool)
I was convinced we didn't have one for string literal nodes, until I
noticed that we do, it's just called strlit, it's not a method, and
it's later in the file:
func strlit(n *Node) string
This change, for consistency:
- Renames strlit to StringVal and makes it a *Node method
- Renames Bool and Int64 to BoolVal and Int64Val
- Moves StringVal near the other two
Change-Id: I18e635384c35eb3a238fd52b1ccd322b1a74d733
Reviewed-on: https://go-review.googlesource.com/c/go/+/261361
Trust: Alberto Donizetti <alb.donizetti@gmail.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
