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60228 Commits

Author SHA1 Message Date
Russ Cox
ca5fc8de65 cmd/vendor: pull in x/mod/modfile godebug changes
go get golang.org/x/mod@c0bdc7bd
	go mod tidy
	go mod vendor

Pulls in CL 584300.

For #65573.

Change-Id: Ia8ec86e2ee049b911fcf09d57f83972786b0470d
Reviewed-on: https://go-review.googlesource.com/c/go/+/584475
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2024-05-14 18:34:56 +00:00
Russ Cox
2cc42f7328 time: more flake removal in asynctimerchan test
Trying to write a test for the corner cases in the old async timer chan
implementation may have been a mistake, especially since this isn't
going to be the default timer chan implementation anymore.
But let's try one more time to fix the test.

I reproduced the remaining builder failures on my Mac laptop
by overloading the CPU in one window and then running 48 instances
of the flaky test in loops using 'stress' in another window.

It turns out that, contrary to my understanding of async timers
and therefore contrary to what the test expected, it is technically
possible for

	t := time.NewTicker(1)
	t.Reset(1000*time.Hour)
	<-t.C
	<-t.C

to observe two time values on t.C, as opposed to blocking forever.

We always expect the first time value, since the ticker goes off
immediately (after 1ns) and sends that value into the channel buffer.
To get the second value, the ticker has to be in the process of
going off (which it is doing constantly anyway), and the timer
goroutine has to be about to call sendTime and then get rescheduled.
Then t.Reset and the first <-t.C have to happen.
Then the timer goroutine gets rescheduled and can run sendTime's
non-blocking send on t.C, which finds an empty buffer and writes
a value.

This is unlikely, of course, but it definitely happens. This program
always panics in just a second or two on my laptop:

	package main

	import (
		"os"
		"time"
	)

	func main() {
		os.Setenv("GODEBUG", "asynctimerchan=1")
		for  {
			go func() {
				t := time.NewTicker(1)
				t.Reset(1000*time.Hour)
				<-t.C
				select {
				case <-t.C:
					panic("two receives")
				case <-time.After(1*time.Second):
				}
			}()
		}
	}

Because I did not understand this nuance, the test did not expect it.

This CL rewrites the test to expect that possibility. I can no longer
make the test fail under 'stress' on my laptop.

For #66322.

Change-Id: I15c75d2c6f24197c43094da20d6ab55306a0a9f1
Reviewed-on: https://go-review.googlesource.com/c/go/+/585359
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
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2024-05-14 18:27:21 +00:00
Than McIntosh
0767ffdf27 doc: add relnote fragment on stack slot merging
Add a blurb to the toolchain section talking about stack slot merging.

Updates #62737.

Change-Id: I26193a6a381c95ff5d79ce80b77c10c7561d00cc
Reviewed-on: https://go-review.googlesource.com/c/go/+/581439
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-05-14 17:18:10 +00:00
Than McIntosh
3454ac0d63 cmd/link/internal/ld: clean tmpdir obj timestamps
This patch changes the Go linker to "clean" (reset to Unix epoch) the
timestamps on object files copied to the tmpdir that is presented to
the external linker or archive tool. The intent is to improve build
reproducibility on Darwin, where later versions of xcode seem to want
to incorporate object file timestamps into the hash used for the final
build ID (which precludes the possibility of having reproducible Go
builds). Credit for this idea goes to Cherry (see
https://github.com/golang/go/issues/64947#issuecomment-1887667189).

Updates #64947.

Change-Id: I2eb7dddff538e247122b04fdcf8a57c923f61201
Reviewed-on: https://go-review.googlesource.com/c/go/+/585355
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-05-14 16:44:47 +00:00
Niklas Ott
c7c578cdf3 encoding/base32: use correct length for unpadded buffer in Read
If unpadded content was passed, in some occassions content was omitted,
because the division result was floored. Ceiling it makes sure all
content is always read.

Fixes #65166

Change-Id: I1d8ee7ef436080483ed8f0e615b70a1013455f92
Reviewed-on: https://go-review.googlesource.com/c/go/+/581415
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-05-14 16:25:54 +00:00
Tobias Klauser
9fa34d9fa2 net/netip: fix TestInlining after CL 585057
Addr.AsSlice is not inlinable on all architectures.

Fixes #67354

Change-Id: Ibaf7daa2e1188a05952f8df3c84255436b29478d
Reviewed-on: https://go-review.googlesource.com/c/go/+/585058
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Mateusz Poliwczak <mpoliwczak34@gmail.com>
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Reviewed-by: abner chenc <chenguoqi@loongson.cn>
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2024-05-14 16:17:33 +00:00
Mateusz Poliwczak
8623c0ba95 internal/chacha8rand: use internal/byteorder
Change-Id: Ia5bcaba47da949583a720ca3506d6bd9e3794824
GitHub-Last-Rev: 1ed3dad2bf
GitHub-Pull-Request: golang/go#67320
Reviewed-on: https://go-review.googlesource.com/c/go/+/584996
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2024-05-13 21:47:29 +00:00
Tobias Klauser
9f9afbf332 net/netip: test that Addr.AsSlice is inlineable
CL 584995 made Addr.AsSlice inlineable as a side effect. Make sure we
don't regress.

Updates #56136

Change-Id: Ib5f77a430db66ffe45c4cbb264da7a401945fec9
Reviewed-on: https://go-review.googlesource.com/c/go/+/585057
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2024-05-13 21:43:09 +00:00
Mateusz Poliwczak
259d2347d2 net/netip: replace != nil with != "" in comment
Change-Id: Ie204f90e51c210efe520a075b917c6178e109676
GitHub-Last-Rev: 9ca21ff92f
GitHub-Pull-Request: golang/go#67341
Reviewed-on: https://go-review.googlesource.com/c/go/+/585155
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Auto-Submit: Brad Fitzpatrick <bradfitz@golang.org>
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2024-05-13 21:42:34 +00:00
Tobias Klauser
4015277b61 net/netip: combine import groups
Change-Id: If79f4452a34281796c4b8e7b0246c978e09a64af
Reviewed-on: https://go-review.googlesource.com/c/go/+/585056
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2024-05-13 21:42:31 +00:00
Alberto Donizetti
cc1479653d slices: fix punctuation in the documentation of Values
Change-Id: Idea4f92d511b5f18531758667cb0cb5ed6f91a0a
Reviewed-on: https://go-review.googlesource.com/c/go/+/584359
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2024-05-13 21:40:32 +00:00
apocelipes
a949ade592 image/gif: use internal/byteorder
Change-Id: Ic00e63aa35bcea4c97a5885d61edb8fc37d84e22
GitHub-Last-Rev: 1ad3a5d0ed
GitHub-Pull-Request: golang/go#67324
Reviewed-on: https://go-review.googlesource.com/c/go/+/584997
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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2024-05-13 21:38:09 +00:00
nobishino
133cdfb469 encoding/csv: clarify that Writer uses different line break than RFC 4180 by default
Package documentation of encoding/csv says:

> this package supports the format described in RFC 4180.

According to section 2 of RFC 4180:

> Each record is located on a separate line, delimited by a line break (CRLF).

On the other hand, Writer uses LF (not CRLF) as newline character by default.

> If [Writer.UseCRLF] is true, the Writer ends each output line with \r\n instead of \n.

Strictly speaking, this behavior is different from RFC 4180.
Package documentation would improve if we clarify that point.

Change-Id: I120e9332b593e1ac9ed8e49f6f8419ea88efc57d
GitHub-Last-Rev: 489167eb04
GitHub-Pull-Request: golang/go#67290
Reviewed-on: https://go-review.googlesource.com/c/go/+/584835
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2024-05-13 21:32:28 +00:00
Mateusz Poliwczak
509bbeb407 math/rand/v2, math/big: use internal/byteorder
Change-Id: Id07f16d14133ee539bc2880b39641c42418fa6e2
GitHub-Last-Rev: 7b327d508f
GitHub-Pull-Request: golang/go#67319
Reviewed-on: https://go-review.googlesource.com/c/go/+/585016
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
2024-05-13 21:31:58 +00:00
aimuz
7e196c04ed fmt, internal/fmtsort: refactor SortedMap to use slice of structs for map sorting
This change refactors the SortedMap type in the fmtsort package from using
two parallel slices for keys and values to a single slice of structs. This
improves code clarity and reduces the complexity of handling map entries.
Affected files and their respective functions have been updated to work
with the new structure, including adjustments in fmt/print.go and
text/template/exec.go to iterate over the new map representation.

goos: darwin
goarch: arm64
pkg: fmt
cpu: Apple M2 Max
                                 │   old.txt    │               new.txt                │
                                 │    sec/op    │    sec/op     vs base                │
SprintfPadding-12                  21.29n ±  5%   20.89n ±  8%        ~ (p=0.393 n=10)
SprintfEmpty-12                    2.986n ±  4%   2.997n ± 10%        ~ (p=0.697 n=10)
SprintfString-12                   8.327n ±  9%   8.493n ± 12%        ~ (p=0.579 n=10)
SprintfTruncateString-12           15.93n ± 10%   15.56n ± 10%        ~ (p=0.853 n=10)
SprintfTruncateBytes-12            14.56n ± 12%   14.13n ± 11%        ~ (p=0.796 n=10)
SprintfSlowParsingPath-12          9.026n ± 15%   9.511n ± 14%        ~ (p=0.646 n=10)
SprintfQuoteString-12              40.88n ±  3%   40.73n ±  1%        ~ (p=0.782 n=10)
SprintfInt-12                      6.279n ±  7%   6.130n ±  6%        ~ (p=0.218 n=10)
SprintfIntInt-12                   11.08n ± 10%   11.37n ± 10%        ~ (p=0.424 n=10)
SprintfPrefixedInt-12              31.24n ±  3%   31.21n ±  2%        ~ (p=0.912 n=10)
SprintfFloat-12                    13.96n ±  7%   13.99n ± 15%        ~ (p=0.986 n=10)
SprintfComplex-12                  49.16n ±  7%   50.57n ±  6%        ~ (p=0.436 n=10)
SprintfBoolean-12                  7.578n ± 15%   7.267n ± 11%        ~ (p=0.529 n=10)
SprintfHexString-12                36.14n ±  2%   35.74n ±  1%        ~ (p=0.118 n=10)
SprintfHexBytes-12                 48.74n ±  1%   48.34n ±  4%        ~ (p=0.128 n=10)
SprintfBytes-12                    60.16n ±  3%   61.36n ±  5%        ~ (p=0.218 n=10)
SprintfStringer-12                 39.02n ± 10%   39.31n ±  9%        ~ (p=0.739 n=10)
SprintfStructure-12                161.2n ±  1%   133.9n ±  4%  -16.90% (p=0.000 n=10)
ManyArgs-12                        31.87n ± 17%   33.00n ± 12%        ~ (p=0.165 n=10)
FprintInt-12                       32.32n ±  0%   33.13n ±  1%   +2.49% (p=0.000 n=10)
FprintfBytes-12                    47.31n ±  0%   47.99n ±  1%   +1.44% (p=0.000 n=10)
FprintIntNoAlloc-12                32.05n ±  1%   33.12n ±  0%   +3.34% (p=0.000 n=10)
ScanInts-12                        130.5µ ±  1%   131.3µ ±  0%   +0.57% (p=0.000 n=10)
ScanRecursiveInt-12                40.83m ±  1%   40.65m ±  2%        ~ (p=0.353 n=10)
ScanRecursiveIntReaderWrapper-12   40.77m ±  2%   40.83m ±  2%        ~ (p=0.971 n=10)
geomean                            100.6n         100.3n         -0.32%

                                 │    old.txt     │                new.txt                 │
                                 │      B/op      │     B/op      vs base                  │
SprintfPadding-12                    16.00 ± 0%       16.00 ± 0%        ~ (p=1.000 n=10) ¹
SprintfEmpty-12                      0.000 ± 0%       0.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfString-12                     5.000 ± 0%       5.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfTruncateString-12             16.00 ± 0%       16.00 ± 0%        ~ (p=1.000 n=10) ¹
SprintfTruncateBytes-12              16.00 ± 0%       16.00 ± 0%        ~ (p=1.000 n=10) ¹
SprintfSlowParsingPath-12            5.000 ± 0%       5.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfQuoteString-12                32.00 ± 0%       32.00 ± 0%        ~ (p=1.000 n=10) ¹
SprintfInt-12                        0.000 ± 0%       0.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfIntInt-12                     3.000 ± 0%       3.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfPrefixedInt-12                64.00 ± 0%       64.00 ± 0%        ~ (p=1.000 n=10) ¹
SprintfFloat-12                      8.000 ± 0%       8.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfComplex-12                    24.00 ± 0%       24.00 ± 0%        ~ (p=1.000 n=10) ¹
SprintfBoolean-12                    4.000 ± 0%       4.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfHexString-12                  80.00 ± 0%       80.00 ± 0%        ~ (p=1.000 n=10) ¹
SprintfHexBytes-12                   104.0 ± 0%       104.0 ± 0%        ~ (p=1.000 n=10) ¹
SprintfBytes-12                      88.00 ± 0%       88.00 ± 0%        ~ (p=1.000 n=10) ¹
SprintfStringer-12                   32.00 ± 0%       32.00 ± 0%        ~ (p=1.000 n=10) ¹
SprintfStructure-12                  216.0 ± 0%       168.0 ± 0%  -22.22% (p=0.000 n=10)
ManyArgs-12                          0.000 ± 0%       0.000 ± 0%        ~ (p=1.000 n=10) ¹
FprintInt-12                         0.000 ± 0%       0.000 ± 0%        ~ (p=1.000 n=10) ¹
FprintfBytes-12                      24.00 ± 0%       24.00 ± 0%        ~ (p=1.000 n=10) ¹
FprintIntNoAlloc-12                  0.000 ± 0%       0.000 ± 0%        ~ (p=1.000 n=10) ¹
ScanInts-12                        14.87Ki ± 0%     14.87Ki ± 0%        ~ (p=1.000 n=10) ¹
ScanRecursiveInt-12                16.37Ki ± 0%     16.34Ki ± 9%        ~ (p=0.950 n=10)
ScanRecursiveIntReaderWrapper-12   16.43Ki ± 8%     16.35Ki ± 0%        ~ (p=0.052 n=10)
geomean                                         ²                  -1.03%                ²
¹ all samples are equal
² summaries must be >0 to compute geomean

                                 │    old.txt    │                new.txt                │
                                 │   allocs/op   │  allocs/op   vs base                  │
SprintfPadding-12                   1.000 ± 0%      1.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfEmpty-12                     0.000 ± 0%      0.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfString-12                    1.000 ± 0%      1.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfTruncateString-12            1.000 ± 0%      1.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfTruncateBytes-12             1.000 ± 0%      1.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfSlowParsingPath-12           1.000 ± 0%      1.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfQuoteString-12               1.000 ± 0%      1.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfInt-12                       0.000 ± 0%      0.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfIntInt-12                    1.000 ± 0%      1.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfPrefixedInt-12               1.000 ± 0%      1.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfFloat-12                     1.000 ± 0%      1.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfComplex-12                   1.000 ± 0%      1.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfBoolean-12                   1.000 ± 0%      1.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfHexString-12                 1.000 ± 0%      1.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfHexBytes-12                  2.000 ± 0%      2.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfBytes-12                     2.000 ± 0%      2.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfStringer-12                  4.000 ± 0%      4.000 ± 0%        ~ (p=1.000 n=10) ¹
SprintfStructure-12                 8.000 ± 0%      6.000 ± 0%  -25.00% (p=0.000 n=10)
ManyArgs-12                         0.000 ± 0%      0.000 ± 0%        ~ (p=1.000 n=10) ¹
FprintInt-12                        0.000 ± 0%      0.000 ± 0%        ~ (p=1.000 n=10) ¹
FprintfBytes-12                     1.000 ± 0%      1.000 ± 0%        ~ (p=1.000 n=10) ¹
FprintIntNoAlloc-12                 0.000 ± 0%      0.000 ± 0%        ~ (p=1.000 n=10) ¹
ScanInts-12                        1.590k ± 0%     1.590k ± 0%        ~ (p=1.000 n=10) ¹
ScanRecursiveInt-12                1.592k ± 0%     1.592k ± 0%        ~ (p=0.303 n=10)
ScanRecursiveIntReaderWrapper-12   1.594k ± 0%     1.594k ± 0%        ~ (p=0.582 n=10)
geomean                                        ²                 -1.14%                ²
¹ all samples are equal
² summaries must be >0 to compute geomean

Change-Id: I2e850d827d2fd7d6618db60f7071977af5639032
GitHub-Last-Rev: 5a4afcf045
GitHub-Pull-Request: golang/go#67256
Reviewed-on: https://go-review.googlesource.com/c/go/+/584155
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Auto-Submit: Ian Lance Taylor <iant@google.com>
2024-05-13 21:22:43 +00:00
Lorenz Bauer
ec1724bc99 encoding/binary: simplify encoder.value
Remove some duplicate type switching from encoder.value. reflect.Uint and
reflect.Int don't have a case statement anymore, but since they aren't valid
types there is no change in semantics.

goos: darwin
goarch: arm64
pkg: encoding/binary
cpu: Apple M1 Pro
                            │   base.txt   │            simplify.txt             │
                            │    sec/op    │    sec/op     vs base               │
ReadSlice1000Int32s-10         2.649µ ± 1%    2.645µ ± 0%        ~ (p=0.069 n=6)
ReadStruct-10                  204.8n ± 2%    199.9n ± 0%   -2.39% (p=0.002 n=6)
WriteStruct-10                 185.6n ± 2%    154.0n ± 0%  -17.03% (p=0.002 n=6)
WriteSlice1000Structs-10       157.9µ ± 1%    125.0µ ± 0%  -20.86% (p=0.002 n=6)
ReadSlice1000Structs-10        162.6µ ± 2%    159.3µ ± 0%        ~ (p=0.065 n=6)
ReadInts-10                    159.7n ± 1%    156.7n ± 0%   -1.88% (p=0.002 n=6)
WriteInts-10                   134.2n ± 0%    134.1n ± 0%   -0.11% (p=0.011 n=6)
WriteSlice1000Int32s-10        2.680µ ± 0%    2.680µ ± 0%        ~ (p=0.955 n=6)
PutUint16-10                  0.6253n ± 2%   0.6211n ± 0%   -0.67% (p=0.013 n=6)
AppendUint16-10                1.417n ± 2%    1.413n ± 0%        ~ (p=0.065 n=6)
PutUint32-10                  0.6210n ± 0%   0.6210n ± 0%        ~ (p=0.835 n=6)
AppendUint32-10                1.414n ± 0%    1.414n ± 0%        ~ (p=1.000 n=6)
PutUint64-10                  0.6210n ± 0%   0.6212n ± 0%        ~ (p=0.260 n=6)
AppendUint64-10                1.414n ± 1%    1.417n ± 0%        ~ (p=0.097 n=6)
LittleEndianPutUint16-10      0.6236n ± 0%   0.6238n ± 0%        ~ (p=0.426 n=6)
LittleEndianAppendUint16-10    1.419n ± 0%    1.421n ± 1%        ~ (p=0.054 n=6)
LittleEndianPutUint32-10      0.6236n ± 0%   0.6239n ± 0%        ~ (p=0.457 n=6)
LittleEndianAppendUint32-10    1.421n ± 3%    1.421n ± 0%        ~ (p=1.000 n=6)
LittleEndianPutUint64-10      0.6242n ± 1%   0.6239n ± 0%        ~ (p=0.372 n=6)
LittleEndianAppendUint64-10    1.421n ± 0%    1.421n ± 0%        ~ (p=1.000 n=6)
ReadFloats-10                  39.39n ± 0%    39.35n ± 0%   -0.10% (p=0.026 n=6)
WriteFloats-10                 33.64n ± 0%    33.65n ± 0%        ~ (p=0.297 n=6)
ReadSlice1000Float32s-10       2.661µ ± 0%    2.664µ ± 0%        ~ (p=0.916 n=6)
WriteSlice1000Float32s-10      2.763µ ± 0%    2.758µ ± 2%        ~ (p=0.225 n=6)
ReadSlice1000Uint8s-10         129.5n ± 2%    129.5n ± 2%        ~ (p=0.485 n=6)
WriteSlice1000Uint8s-10        144.4n ± 4%    146.1n ± 2%        ~ (p=0.065 n=6)
PutUvarint32-10                12.12n ± 0%    12.12n ± 2%        ~ (p=0.933 n=6)
PutUvarint64-10                30.75n ± 0%    31.29n ± 1%   +1.76% (p=0.002 n=6)
geomean                        33.44n         32.89n        -1.65%

Change-Id: Ibce978012c268a7f26fe7567c340c861fa4b115d
Reviewed-on: https://go-review.googlesource.com/c/go/+/579156
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2024-05-13 21:22:39 +00:00
lifubang
59003b6d87 syscall: don't change local limit if prlimit used for another process
Fixes: #67184

Change-Id: Ibdf3810cbba30ae29f466f7f95f357e8512f228b
GitHub-Last-Rev: 5eabc760be
GitHub-Pull-Request: golang/go#67185
Reviewed-on: https://go-review.googlesource.com/c/go/+/583299
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2024-05-13 21:18:19 +00:00
Tim King
99283b81f4 cmd/go: add module information to vet actions
Update golang/go#66315

Change-Id: Ica9b7e010ea9a0a12f80cc83b8ace51f22822ec2
Reviewed-on: https://go-review.googlesource.com/c/go/+/580076
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2024-05-13 20:08:58 +00:00
Mateusz Poliwczak
c98867d23a crypto: replace encoding/binary in favour of internal/byteorder
Updates #54097

Change-Id: I827a5efd1736ce057b76f079466f2d9ead225898
GitHub-Last-Rev: 40af10469d
GitHub-Pull-Request: golang/go#67321
Reviewed-on: https://go-review.googlesource.com/c/go/+/585017
Reviewed-by: Keith Randall <khr@golang.org>
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2024-05-13 18:57:38 +00:00
Ian Lance Taylor
a32e94d43e cmd/cgo, cmd/go: add cgo -ldflags option, use it in cmd/go
This will automatically use a response file if ldflags is long,
avoiding "argument list too long" errors with a very large CGO_LDFLAGS.

Fixes #66456

Change-Id: I5f9ee86e03b4e6d6430f7f9d8357ef37a9c22465
Reviewed-on: https://go-review.googlesource.com/c/go/+/584655
Reviewed-by: Michael Matloob <matloob@golang.org>
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2024-05-13 17:12:16 +00:00
Nick Ripley
f4494522dc runtime: use frame pointer unwinding for block and mutex profilers
Use frame pointer unwinding, where supported, to collect call stacks for
the block, and mutex profilers. This method of collecting call stacks is
typically an order of magnitude faster than callers/tracebackPCs. The
marginal benefit for these profile types is likely small compared to
using frame pointer unwinding for the execution tracer. However, the
block profiler can have noticeable overhead unless the sampling rate is
very high. Additionally, using frame pointer unwinding in more places
helps ensure more testing/support, which benefits systems like the
execution tracer which rely on frame pointer unwinding to be practical
to use.

Change-Id: I4b36c90cd2df844645fd275a41b247352d635727
Reviewed-on: https://go-review.googlesource.com/c/go/+/533258
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2024-05-13 16:42:35 +00:00
Nick Ripley
b5bfb5a3ce runtime: refactor fpunwindExpand to use provided buffer
fpunwindExpand currently allocates a new slice to hold the expanded call
stack. In each place it's used, the resulting slice won't be needed
immediately afterward, so the allocation is wasteful. Refactor
fpunwindExpand to instead expand the call stack into a provided buffer.

Change-Id: I05b26c191a8f76404c21ccbe3bd422325540425b
Reviewed-on: https://go-review.googlesource.com/c/go/+/543715
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2024-05-13 16:41:50 +00:00
Mateusz Poliwczak
f43d9c40f3 net/netip: use internal/byteorder
This also as a side effect fixes #56136 because internal/byteorder
package has a special treatment in the inliner.

Fixes #56136

Change-Id: Ib90eb716f7a67659fb4cea7e99c14cf7e819ef7b
GitHub-Last-Rev: a78d8f6fee
GitHub-Pull-Request: golang/go#67317
Reviewed-on: https://go-review.googlesource.com/c/go/+/584995
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2024-05-13 15:55:25 +00:00
qiulaidongfeng
f933f78d17 cmd/go: remove unused code
Change-Id: I39e8533a646d171a84c1ef307915286213006543
GitHub-Last-Rev: 3c21684ad0
GitHub-Pull-Request: golang/go#67090
Reviewed-on: https://go-review.googlesource.com/c/go/+/581938
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2024-05-13 15:54:54 +00:00
Guoqi Chen
9ea4770e14 cmd/internal/obj/loong64: improve the definition of plan9 assembly format in optab
In the three formats corresponding to case 7 of the function asmout, BREAK actually
corresponds to the cacop instruction of Loong64, refer to the loong64 instruction
manual volume 1 [1], the cacop instruction is a privileged instruction used to
maintain the cache, and the user mode does not have permission to execute.

Referring to the loong64 instruction manual volume 1 [1], the SYSCALL, BREAK and DBAR
instructions have similar formats and can be grouped into one category, the RDTIMED,
RDTIMELW and RDTIMEHW instructions can be grouped into one category, and the NOOP and
UNDEF instructions can be grouped into one category.

[1]: https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html

Change-Id: I0b8998270102d1557fc2b2410cf8c0b078bd0c2e
Reviewed-on: https://go-review.googlesource.com/c/go/+/493435
Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
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2024-05-13 15:52:19 +00:00
Guoqi Chen
ec711aaaaa all: delete loong64 non-register ABI fallback path
Change-Id: If1d3eba9a922ac6f9d78301bb8f07e445c712899
Reviewed-on: https://go-review.googlesource.com/c/go/+/525576
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2024-05-13 15:04:25 +00:00
Michael Matloob
5881ae742f cmd: vendor golang.org/x/telemetry@51e8b5d
Commands run
    go get golang.org/x/telemetry@51e8b5d
    go mod tidy
    go mod vendor

Change-Id: Ie11f207d25902c3ef932237eec66bdd586564fc0
Reviewed-on: https://go-review.googlesource.com/c/go/+/584237
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2024-05-13 14:38:01 +00:00
qiulaidongfeng
0eaf8d97b6 runtime: remove unused code
Change-Id: Ifb9864704f55e27adfa5c21452fed5a243468d13
GitHub-Last-Rev: 6b000e7314
GitHub-Pull-Request: golang/go#67013
Reviewed-on: https://go-review.googlesource.com/c/go/+/581376
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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2024-05-13 14:20:38 +00:00
Mateusz Poliwczak
07fc59199b hash: use internal/byteorder
Change-Id: I58c24a58a7b32d3f8d544509db04baac1ea1b56e
GitHub-Last-Rev: 7a648fda00
GitHub-Pull-Request: golang/go#67318
Reviewed-on: https://go-review.googlesource.com/c/go/+/585015
Auto-Submit: Keith Randall <khr@golang.org>
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2024-05-12 05:36:29 +00:00
Mauri de Souza Meneguzzo
9623a3586f runtime/internal/atomic: add mips operators for And/Or
These primitives will be used by the new And/Or sync/atomic apis.

Implemented for mips/mipsle and mips64/mips64le.

For #61395

Change-Id: Icc604a2b5cdfe72646d47d3c6a0bb49a0fd0d353
GitHub-Last-Rev: 95dca2a9f1
GitHub-Pull-Request: golang/go#63297
Reviewed-on: https://go-review.googlesource.com/c/go/+/531835
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2024-05-11 21:29:34 +00:00
Alessandro Arzilli
7f9edb4225 runtime: add runtime.debugPinnerV1
Adds runtime.debugPinnerV1 which returns a runtime.Pinner object that
pins itself. This is intended to be used by debuggers in conjunction
with runtime.debugCall to keep heap memory reachable even if it isn't
referenced from anywhere else.

Change-Id: I508ee6a7b103e68df83c96f2e04a0599200300dc
Reviewed-on: https://go-review.googlesource.com/c/go/+/558276
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2024-05-11 20:38:24 +00:00
Michael Matloob
74a49188d3 cmd/go/testdata/script: disable build_plugin_reproducible on darwin
It's broken with the latest XCode versions, and is also already disabled
on darwin builders. Disable the test to get go test cmd/go working on
local builds again.

For #64947

Change-Id: I5a4b46cf23cbe887df4903f90b54cd2225f51233
Reviewed-on: https://go-review.googlesource.com/c/go/+/584937
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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2024-05-11 00:21:41 +00:00
Michael Matloob
a0a6026bb1 cmd/go/testdata/script: clear path in gotoolchain_issue66175
The gotoolchain_issue66175 script test would fail if a binary named
go1.21 or go1.22 was present in the system PATH. Clear the path at the
beginning of the test to make it independent of the system path.

Fixes #67277

Change-Id: I6d9133aee5b20ab116e07b659e8ecf3eb8add4ed
Reviewed-on: https://go-review.googlesource.com/c/go/+/584258
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2024-05-10 21:32:07 +00:00
guoguangwu
cf6124f807 cmd/trace: pkg import only once
Change-Id: Iaaf2e9dbcffb4b1944817b0a4aaecd3554ebfec1
GitHub-Last-Rev: f4ec85a05e
GitHub-Pull-Request: golang/go#67280
Reviewed-on: https://go-review.googlesource.com/c/go/+/584695
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2024-05-10 21:16:43 +00:00
Mateusz Poliwczak
f3a743981d internal/byteorder: new package
Currently in a lot of packages we define functions for appending/decoding
mostly BigEndian data (see internal/chacha8rand, net/netip,
internal/boring/sha, hash/crc64, and probably more), because we don't
want to depend on encoding/binary, because of #54097.

This change introduces a new package internal/byteorder, that
will allow us to remove all of the functions and replace them with
internal/byteorder.

Updates #54097

Change-Id: I03e5ea1eb721dd98bdabdb25786f889cc5de54c5
GitHub-Last-Rev: 3f07d3dfb4
GitHub-Pull-Request: golang/go#67183
Reviewed-on: https://go-review.googlesource.com/c/go/+/583298
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2024-05-10 20:31:29 +00:00
Matt Layher
f6c3a3e3c8 slices: add Chunk
Chunk returns an iterator over consecutive sub-slices of up to n elements of s.

Fixes #53987.

Change-Id: I508274eca388db39550eb9e4d8abd5ce68d29d8d
Reviewed-on: https://go-review.googlesource.com/c/go/+/562935
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2024-05-10 17:28:50 +00:00
Alireza Ghasemi
69c74c9ea9 net/http/httptest: add comment to Server.Client() about Server.URL
Updates #30774.

Change-Id: I9564f955b15c701bee27aa9fbf3972de8fdb55e4
GitHub-Last-Rev: 50bd6bd54e
GitHub-Pull-Request: golang/go#67037
Reviewed-on: https://go-review.googlesource.com/c/go/+/581777
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2024-05-10 17:26:10 +00:00
Cherry Mui
4721f95058 cmd/compile, cmd/link: disallow linkname of some newly added internal functions
Go API is defined through exported symbols. When a package is
imported, the compiler ensures that only exported symbols can be
accessed, and the go command ensures that internal packages cannot
be imported. This ensures API integrity. But there is a hole:
using linkname, one can access internal or non-exported symbols.
Linkname is a mechanism to give access of a symbol to a package
without adding it to the public API. It is intended for coupled
packages to share some implementation details, or to break
circular dependencies, and both "push" (definition) and "pull"
(reference) sides are controlled, so they can be updated in sync.
Nevertheless, it is abused as a mechanism to reach into internal
details of other packages uncontrolled by the user, notably the
runtime. As the other package evolves, the code often breaks,
because the linknamed symbol may no longer exist, or change its
signature or semantics.

This CL adds a mechanism to enforce the integrity of linknames.
Generally, "push" linkname is allowed, as the package defining
the symbol explicitly opt in for access outside of the package.
"Pull" linkname is checked and only allowed in some circumstances.
Given that there are existing code that use "pull"-only linkname
to access other package's internals, disallowing it completely is
too much a change at this point in the release cycle. For a start,
implement a hard-coded blocklist, which contains some newly added
internal functions that, if used inappropriately, may break memory
safety or runtime integrity. All blocked symbols are newly added
in Go 1.23. So existing code that builds with Go 1.22 will
continue to build.

For the implementation, when compiling a package, we mark
linknamed symbols in the current package with an attribute. At
link time, marked linknamed symbols are checked against the
blocklist. Care is taken so it distinguishes a linkname reference
in the current package vs. a reference of a linkname from another
package and propagated to the current package (e.g. through
inlining or instantiation).

Symbol references in assembly code are similar to linknames, and
are treated similarly.

Change-Id: I8067efe29c122740cd4f1effd2dec2d839147d5d
Reviewed-on: https://go-review.googlesource.com/c/go/+/584598
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2024-05-10 17:05:33 +00:00
zzkcode
df4f40b9e0 runtime: crash asap and extend total sleep time for slow machine in test
Running with few threads usually does not need 500ms to crash, so let it
crash as soon as possible. While the test may caused more time on slow
machine, try to expand the sleep time in test.

Updates #64752

Change-Id: I635fab846bd5e1735808d4d47bb9032d5a04cc2b
GitHub-Last-Rev: 84f3844ac0
GitHub-Pull-Request: golang/go#65018
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2024-05-10 16:04:54 +00:00
qiulaidongfeng
b44600f83f reflect: let Value.Seq iterate integer conform to the spec
See CL 557596, according to the go specification,
the iterated variable type should
be the same as the iterated integer type.

For #66056

Change-Id: I96c87440328c2c50c40d76ecf2f222a331be1ce9
GitHub-Last-Rev: 8f80e401e5
GitHub-Pull-Request: golang/go#67269
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2024-05-10 14:27:54 +00:00
Than McIntosh
a548dee75c cmd/link/internal/ld: fix overlapping sections in ELF relro links
This patch fixes a problem with how the .dynamic and .got sections are
handled during PIE linking on ELF targets. These sections were being
given addresses that overlapped with the .data.rel.ro section, which
resulted in binaries that worked correctly but confused the binutils
"strip" tool (which, confusingly, produced non-working stripped output
when used on Go PIE binaries without returning a non-zero exit
status). The new RELRO PIE code path preserves .dynamic and .got as
their own independent sections, while ensuring that they make it into
the RELRO segment. A new test verifies that we can successfully strip
and run Go PIE binaries, and also that we don't wind up with any
sections whose address ranges overlap.

Fixes #67261.
Updates #45681.

Change-Id: If874be05285252a9b074d4a1fc6a4023b9a28b5e
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2024-05-10 13:44:07 +00:00
guoguangwu
1259a30a58 os: change ioutil-test to os-test in test
Change-Id: I8c5c0831b94261c5880ca22b7ea52cce034d88f1
GitHub-Last-Rev: 5fd119d4e8
GitHub-Pull-Request: golang/go#67248
Reviewed-on: https://go-review.googlesource.com/c/go/+/583876
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2024-05-10 02:36:46 +00:00
Ian Lance Taylor
6584fe8195 cmd/dist: don't copy files ending in ~ to bootstrap directory
They are editor backup files. They are ignored by .gitignore,
so they can never be real files in the Go repo.

Change-Id: I58800e6e9f939e0bd21b086243b9260bcc8cd770
Reviewed-on: https://go-review.googlesource.com/c/go/+/584675
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
2024-05-09 23:29:41 +00:00
Ian Lance Taylor
2315412535 reflect: improved ifaceIndir comment
Change-Id: Ic88ef6b60b5a772865603971411fd5d37ef45006
Reviewed-on: https://go-review.googlesource.com/c/go/+/584656
Auto-Submit: Ian Lance Taylor <iant@golang.org>
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>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2024-05-09 23:28:18 +00:00
Roland Shoemaker
671696a22d crypto/x509: reject critical AKI
Updates #65085

Change-Id: I8cc60990737d582edf4f7f85ec871f5e42f82b78
Reviewed-on: https://go-review.googlesource.com/c/go/+/562341
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Roland Shoemaker <roland@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2024-05-09 23:09:41 +00:00
Ian Lance Taylor
2064413b54 reflect: restore ifaceIndir function for now
CL 583755 removed all uses of the ifaceIndir function,
and the function itself. Unfortunately, ifaceIndir is accessed
using go:linkname by the popular github.com/goccy/go-json package.
A bug has been filed to fix this upstream:
https://github.com/goccy/go-json/issues/506
Until that bug is fixed and the fix is distributed,
keep this function available.
With luck we can remove this in the 1.24 release.

For #67279

Change-Id: I15fccf82d7a172a0b15cdbefb0a0a48381998938
Reviewed-on: https://go-review.googlesource.com/c/go/+/584676
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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>
2024-05-09 23:06:39 +00:00
Roland Shoemaker
e0aab32c7f crypto/x509: reject critical SKI extensions
Updates #65085

Change-Id: I8a00fff6b2af4e55bcb88456813b5ee1f7b1c01d
Reviewed-on: https://go-review.googlesource.com/c/go/+/562344
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-05-09 22:43:14 +00:00
Roland Shoemaker
f4bb7b9186 crypto/x509: reject critical AIA extensions
Updates #65085

Change-Id: I86d8a85130286e1ec2aca3249808ec1dc8ec97ca
Reviewed-on: https://go-review.googlesource.com/c/go/+/562342
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-05-09 22:42:58 +00:00
Roland Shoemaker
5856162487 crypto/x509: properly reject invalid DNS names when checking constraints
A DNS name prefixed with an empty label should be considered invalid
when checking constraints (i.e. ".example.com" does not satisfy a
constraint of "example.com").

Updates #65085

Change-Id: I42919dc06abedc0e242ff36b2a42b583b14857b1
Reviewed-on: https://go-review.googlesource.com/c/go/+/561615
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-05-09 22:40:21 +00:00
qiulaidongfeng
95a3779ebc reflect: clarify documentation for Value.Seq/Seq2
For #66056

Change-Id: Ib47c07b2527d8213584b72e2575a353f2deaed68
GitHub-Last-Rev: 525a5c3fa4
GitHub-Pull-Request: golang/go#67268
Reviewed-on: https://go-review.googlesource.com/c/go/+/584515
Reviewed-by: Cherry Mui <cherryyz@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2024-05-09 22:12:20 +00:00