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57453 Commits

Author SHA1 Message Date
David Chase
a4b6685c4c doc: move Go 1.21 release notes to x/website
Now that the development of the Go 1.21 release is almost done, its
release notes are moved to their eventual long-term home in x/website
in CL 516095. Delete the initial development copy here.

For golang/go#58645.

Change-Id: I5207d21289b2e7b9328c943a088f45bc81c710a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/516075
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2023-08-04 18:16:07 +00:00
Filippo Valsorda
c0eea2d16d doc/go1.21: update crypto release notes
Left out the following commits that felt more bug-fixy.

* f0de4b4f03 - crypto/x509: fix certificate validation with FQDN on Windows <Patryk Chelmecki>
* 20e08fe68c - crypto/tls: advertise correct ciphers in TLS 1.3 only mode <Monis Khan>
* 295c237b4d - crypto/tls: enforce 1.3 record version semantics <Roland Shoemaker>

Change-Id: Idd38b5c6897130424a0e8b857f371d7d384fc143
Reviewed-on: https://go-review.googlesource.com/c/go/+/515955
Reviewed-by: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
2023-08-04 16:53:48 +00:00
Keith Randall
611706b171 cmd/compile: don't use BTS when OR works, add direct memory BTS operations
Stop using BTSconst and friends when ORLconst can be used instead.
OR can be issued by more function units than BTS can, so it could
lead to better IPC. OR might take a few more bytes to encode, but
not a lot more.

Still use BTSconst for cases where the constant otherwise wouldn't
fit and would require a separate movabs instruction to materialize
the constant. This happens when setting bits 31-63 of 64-bit targets.

Add BTS-to-memory operations so we don't need to load/bts/store.

Fixes #61694

Change-Id: I00379608df8fb0167cb01466e97d11dec7c1596c
Reviewed-on: https://go-review.googlesource.com/c/go/+/515755
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
2023-08-04 16:40:24 +00:00
Matthew Dempsky
51cb12e83b runtime: add deferreturn fast path for linked defers
A consequence of go.dev/cl/513837 was that calling deferreturn would
now use the unwinder to find (just) the current frame, and it turns
out there are workloads where this has a significant performance
impact.

As a simple optimization, this CL adds a fast path for deferreturn to
detect when there are pending linked defers, which allows us to skip
invoking the unwinder entirely.

Notably, this still doesn't handle the corner case of calling
deferreturn in a function that uses linked defer when dynamically
there just aren't any defers pending. It also means that after
recovering from a panic and returning to a frame that used open-coded,
we still need to use the unwinder too.

I hope to further optimize defer handling to improve these cases too,
but this is an easy, short-term optimization that relieves the
performance impact to the affected workloads.

Change-Id: I11fa73649302199eadccc27b403b231db8f33db2
Reviewed-on: https://go-review.googlesource.com/c/go/+/515716
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
2023-08-04 16:37:20 +00:00
Klaus Post
55d08e5010 crypto/md5: optimize amd64 assembly
* Use two ADDL instead of LEAL
* Keep ones in R11
* Use XORL with lower latency instead of NOTL
* Remove loads and load the correct value in the previous round
* Reduce dependency chain in round 2.
* Remove MOVL in round 3.

name                    old time/op    new time/op    delta
Hash8Bytes-32              104ns ± 0%      96ns ± 1%   -7.83%   (p=0.000 n=9+10)
Hash64-32                  169ns ± 0%     155ns ± 0%   -7.97%  (p=0.000 n=10+10)
Hash128-32                 244ns ± 0%     224ns ± 0%   -8.16%   (p=0.000 n=9+10)
Hash256-32                 396ns ± 0%     360ns ± 1%   -9.01%  (p=0.000 n=10+10)
Hash512-32                 700ns ± 1%     634ns ± 1%   -9.43%  (p=0.000 n=10+10)
Hash1K-32                 1.30µs ± 0%    1.18µs ± 1%   -9.32%   (p=0.000 n=9+10)
Hash8K-32                 9.77µs ± 0%    8.81µs ± 0%   -9.78%   (p=0.000 n=9+10)
Hash1M-32                 1.24ms ± 1%    1.12ms ± 1%   -9.54%  (p=0.000 n=10+10)
Hash8M-32                 10.0ms ± 1%     9.0ms ± 1%  -10.04%  (p=0.000 n=10+10)
Hash8BytesUnaligned-32     104ns ± 0%      96ns ± 0%   -7.50%  (p=0.000 n=10+10)
Hash1KUnaligned-32        1.32µs ± 1%    1.18µs ± 1%  -10.42%  (p=0.000 n=10+10)
Hash8KUnaligned-32        9.80µs ± 0%    8.79µs ± 1%  -10.29%  (p=0.000 n=10+10)

name                    old speed      new speed      delta
Hash8Bytes-32           77.1MB/s ± 0%  83.6MB/s ± 1%   +8.49%   (p=0.000 n=9+10)
Hash64-32                379MB/s ± 0%   412MB/s ± 0%   +8.66%  (p=0.000 n=10+10)
Hash128-32               525MB/s ± 0%   572MB/s ± 0%   +8.89%   (p=0.000 n=9+10)
Hash256-32               646MB/s ± 0%   710MB/s ± 1%   +9.90%  (p=0.000 n=10+10)
Hash512-32               732MB/s ± 1%   808MB/s ± 1%  +10.41%  (p=0.000 n=10+10)
Hash1K-32                786MB/s ± 0%   866MB/s ± 1%  +10.30%   (p=0.000 n=9+10)
Hash8K-32                839MB/s ± 0%   930MB/s ± 0%  +10.79%  (p=0.000 n=10+10)
Hash1M-32                849MB/s ± 1%   938MB/s ± 1%  +10.54%  (p=0.000 n=10+10)
Hash8M-32                841MB/s ± 1%   935MB/s ± 1%  +11.16%  (p=0.000 n=10+10)
Hash8BytesUnaligned-32  77.1MB/s ± 0%  83.4MB/s ± 0%   +8.12%  (p=0.000 n=10+10)
Hash1KUnaligned-32       778MB/s ± 1%   869MB/s ± 1%  +11.64%  (p=0.000 n=10+10)
Hash8KUnaligned-32       836MB/s ± 0%   932MB/s ± 1%  +11.47%  (p=0.000 n=10+10)

Change-Id: I02b31229b857e9257dc9d36538883eb3af4ad993

This PR will be imported into Gerrit with the title and first
comment (this text) used to generate the subject and body of
the Gerrit change.

Change-Id: I02b31229b857e9257dc9d36538883eb3af4ad993
GitHub-Last-Rev: ec8b15d789
GitHub-Pull-Request: golang/go#43690
Reviewed-on: https://go-review.googlesource.com/c/go/+/283538
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2023-08-04 16:02:36 +00:00
Cherry Mui
f7b4f02ba0 cmd/go: default to PIE linking on darwin/amd64
The recent version of darwin linker ld64 emits an warning about
deprecation of the -no_pie flag. Further, the new darwin linker
ld-prime ignores -no_pie flag and generates a PIE binary anyway.
Switch to building PIE binaries by default.

Updates #54482.
Updates #61229.

Change-Id: I81294dcd07a368a20e1349d56556ee2fdcb8df44
Reviewed-on: https://go-review.googlesource.com/c/go/+/461697
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2023-08-04 15:41:19 +00:00
Mateusz Poliwczak
74caf475e3 net: use fake DNS dialer for /etc/hosts aliases tests
Change-Id: If9c41bd1e0497e76d901bfd2f749fbeb1ed3ac38
GitHub-Last-Rev: f5777d8c20
GitHub-Pull-Request: golang/go#61734
Reviewed-on: https://go-review.googlesource.com/c/go/+/515535
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2023-08-04 02:44:33 +00:00
Andy Pan
73667209c1 log/slog: catch panics during formatting
Fixes #61648

Change-Id: I6b7f4948ca89142a358d74624607daf42ea8b304
Reviewed-on: https://go-review.googlesource.com/c/go/+/514135
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2023-08-03 21:34:15 +00:00
miller
873f76d27b encoding/gob: skip TestLargeSlice on machines with small address space
The encoding/gob.TestLargeSlice test needs too much virtual memory
to run reliably on machines with a small address space, for example
the plan9-arm builders where user processes only have 1 gigabyte.

Fixes #60284

Change-Id: Ied88630e5ec6685e14d2060ae316abca1619f9b5
Reviewed-on: https://go-review.googlesource.com/c/go/+/496138
Auto-Submit: Ian Lance Taylor <iant@golang.org>
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2023-08-03 19:23:26 +00:00
Robert Griesemer
976a84b1ff spec: remove unnecessary sentence
Change-Id: I06345199ff16c80be83c345d734caef1714ec089
Reviewed-on: https://go-review.googlesource.com/c/go/+/515338
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2023-08-03 18:56:31 +00:00
Robert Griesemer
e59eaee2e3 go/types, types2: collect per-file Go version in Info.FileVersions
The go/types changes are matching but the API changes are hidden
for now, pending acceptance of a respective proposal.

Change-Id: I2e38ff215ddbdcf93f182d3e70c03802d3ca4338
Reviewed-on: https://go-review.googlesource.com/c/go/+/515135
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
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2023-08-03 18:56:29 +00:00
Robert Findley
d2ee7821d3 go/types, types2: don't panic during interface completion
It should be possible for the importer to construct an invalid
interface, as would have been produced by type checking.

Fixes #61737

Change-Id: I72e063f4f1a6205d273a623acce2ec08c34c3cc2
Reviewed-on: https://go-review.googlesource.com/c/go/+/515555
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Auto-Submit: Robert Findley <rfindley@google.com>
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2023-08-03 18:53:57 +00:00
Joel Sing
499a120099 cmd/internal/obj/arm64: move register encoding into opxrrr
Rather than having register encoding knowledge in each caller of opxrrr,
pass the registers into opxrrr and let it handle the encoding. This reduces
duplication and improves readability.

Change-Id: I202c503465a0169277a0f64340598203c9dcf20c
Reviewed-on: https://go-review.googlesource.com/c/go/+/461140
Run-TryBot: Joel Sing <joel@sing.id.au>
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2023-08-03 16:17:47 +00:00
Joel Sing
9ff0116229 cmd/asm,cmd/internal/obj/riscv,cmd/link: improve TLS handling on riscv64
The existing Thread Local Storage (TLS) implementation for riscv64 uses
initial-exec (IE) mode, however a MOV of a TLS symbol currently loads the
thread pointer offset and not the actual address or memory location.

Rework TLS on riscv64 to generate the full instruction sequence needed to
load from or store to a TLS symbol. Additionally, provide support for both
initial-exec (IE) and local-exec (LE) TLS - in many cases we can use LE,
which is slightly more efficient and easier to support in the linker.

Change-Id: I1b43f8888b3b6b10354bbb79d604771e64d92645
Reviewed-on: https://go-review.googlesource.com/c/go/+/431103
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: M Zhuo <mzh@golangcn.org>
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2023-08-03 16:15:14 +00:00
Cosmos Nicolaou
b7c826d2c4 runtime,runtime/pprof: get memory mappings on darwin.
Displaying assembly language has never worked for Apple Silicon
macs (see #50891). This change uses mach_vm_region to obtain the
necessary VM mappings to allow for locating assembly instructions
for a cpu profile.

Fixes #50891

Change-Id: Ib968c55a19b481b82f63337276b552f3b18f69d1
Reviewed-on: https://go-review.googlesource.com/c/go/+/503919
Run-TryBot: Cherry Mui <cherryyz@google.com>
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2023-08-03 16:07:59 +00:00
qmuntal
d50272a8c1 cmd/cgo/internal/testerrors: unskip TestPointerChecks on Windows
All TestPointerChecks cases can be executed on Windows with some minor
tweaks.

It seems that the skip has been cargo-culted from when cgo error tests
were first added in https://codereview.appspot.com/13498046.

Change-Id: I39cd05f4c90965b669d2b403f7fcd9dd9c69016c
Reviewed-on: https://go-review.googlesource.com/c/go/+/514296
Reviewed-by: David Chase <drchase@google.com>
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2023-08-03 16:07:49 +00:00
Jes Cok
e4aec1fa8a text/template: use "IsValid" instead of "!= zero" to compare zero Value
See CL 308769

Change-Id: I0caa0a84215b3d4b8b3dc6f041b6cd9cbe2c0908
GitHub-Last-Rev: e3aa5bde23
GitHub-Pull-Request: golang/go#61657
Reviewed-on: https://go-review.googlesource.com/c/go/+/514195
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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2023-08-03 15:59:13 +00:00
Johan Brandhorst-Satzkorn
3687f77069 runtime/internal: switch GOWASIRUNTIME default
CL 513235 switched the default wasip1 runtime in the misc/wasm
executable script, but it missed this use of the GOWASIRUNTIME
environment variable. Update this instance to make the default runtime
choice consistent.

Change-Id: Iff7f96231422747a38d65d13a940f6e9d04d835d
Reviewed-on: https://go-review.googlesource.com/c/go/+/515115
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2023-08-03 15:58:45 +00:00
Ian Lance Taylor
64939f62aa net/rpc: use reflect.TypeFor for known types
For #60088

Change-Id: I56586b68d5e38a46560f4ced19214f1d2db2850e
Reviewed-on: https://go-review.googlesource.com/c/go/+/514995
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2023-08-03 15:57:23 +00:00
qiulaidongfeng
f8966594fa archive: use predeclared function min
Change-Id: I23e0005071fcbafeaecaa05f51712dd1de6eed01

Change-Id: I23e0005071fcbafeaecaa05f51712dd1de6eed01
GitHub-Last-Rev: 364d7c74fe
GitHub-Pull-Request: golang/go#61661
Reviewed-on: https://go-review.googlesource.com/c/go/+/514215
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2023-08-03 15:57:21 +00:00
Hiro
54a540ffa2 image/jpeg, image/png: replace Fatal with Error in tests
Replaced t.Fatalf with t.Errorf for non-critical errors to footprint more failing test cases for better analysis of the error.

Change-Id: I6f51d21e37a4ddb95d239d8afed2154f3ef52d31
GitHub-Last-Rev: d56aa49bce
GitHub-Pull-Request: golang/go#60524
Reviewed-on: https://go-review.googlesource.com/c/go/+/499336
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2023-08-03 15:56:27 +00:00
Mateusz Poliwczak
8657603731 net: use the extended RCode from EDNS(0) OPT resources
For a while now we support EDNS, but the current
implementation only sends the OPT resource and doesn't
do anything with the response OPT resource.

For reference the miekg/dns updates the RCode in the
header when there is a OPT resource:
48f38ebef9/msg.go (L868-L872)

Change-Id: I0a7146aed3e50654f340a3925f48612561cb85f4
GitHub-Last-Rev: adc304167e
GitHub-Pull-Request: golang/go#61695
Reviewed-on: https://go-review.googlesource.com/c/go/+/514835
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2023-08-03 15:55:37 +00:00
Anit Gandhi
3ca90ed866 doc/go1.21: document changes in crypto/tls related to client authentication alerts
For #52113
For #58645

Change-Id: Id7dff2570132588da95fb4216a86faf34fa2cbdc
GitHub-Last-Rev: 94eabfe82f
GitHub-Pull-Request: golang/go#60972
Reviewed-on: https://go-review.googlesource.com/c/go/+/505436
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2023-08-03 15:43:04 +00:00
cui fliter
3c25d832af doc: fix html tags
Change-Id: I535bec2de8f4f7dd415896a020d71c373c22be56
Reviewed-on: https://go-review.googlesource.com/c/go/+/515155
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2023-08-03 14:43:29 +00:00
Tobias Klauser
a4e694b8d4 doc/go1.21: consistently use spaces for indentation
Change-Id: Ib0aec9ee6cd7aae1821c82e67f0c67be01122992
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2023-08-03 14:42:23 +00:00
Junxian Zhu
83c4e533bc cmd/internal/obj/mips: add WSBH/DSBH/DSHD instructions
Add support for WSBH/DSBH/DSHD instructions, which are introduced in mips{32,64}r2.

WSBH reverse bytes within halfwords for 32-bit word, DSBH reverse bytes within halfwords for 64-bit doubleword, and DSHD reverse halfwords within doublewords. These instructions can be used to optimize byte swaps.

Ref: The MIPS64 Instruction Set, Revision 5.04: https://s3-eu-west-1.amazonaws.com/downloads-mips/documents/MD00087-2B-MIPS64BIS-AFP-05.04.pdf

Updates #60072

Change-Id: I31c043150fe8ac03027f413ef4cb2f3e435775e1
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2023-08-03 05:31:56 +00:00
Matthew Dempsky
431612eacb doc/go1.21: finish last TODO for go/types.Package.GoVersion
Updates #58645.

Change-Id: I7352bf7f03c478d92ebd0b8345d676d5b2dfccb7
Reviewed-on: https://go-review.googlesource.com/c/go/+/513475
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
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2023-08-02 23:44:58 +00:00
Srinivas Pokala
ed8cbaf6ac cmd/asm: add s390x crypto related instructions
This CL add's the following instructions,useful for cipher and
message digest operations:

 * KM   - cipher message
 * KMC  - cipher message with chaining
 * KLMD - compute last message digest
 * KIMD - compute intermediate message digest

Fixes #61163

Change-Id: Ib0636430c3e4888ed61b86c5acae45ee596463ff
Reviewed-on: https://go-review.googlesource.com/c/go/+/509075
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2023-08-02 19:58:18 +00:00
Than McIntosh
fbf9076ee8 internal/goexperiment: add "NewInliner" experiment
Add "NewInliner" to the list of Go experiments, used for enabling an
updated/improved version of the function inlining phase within the Go
compiler. 

Updates #61502.

Change-Id: I3218b3ae59a2d05156e8017cd9ee1d7b66cad031
Reviewed-on: https://go-review.googlesource.com/c/go/+/511555
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2023-08-02 19:47:40 +00:00
Robert Griesemer
ce5e37ec21 go/types, types2: move posVers field into group of package-specific fields (cleanup)
posVers exists once for an entire package. Move it into the group
of fields related to the entire package (and out from the group
of fields that are specific to each batch of files).

Change-Id: I40ea722578408bdf2b85db91b65680e720c0c502
Reviewed-on: https://go-review.googlesource.com/c/go/+/514998
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2023-08-02 17:32:07 +00:00
Damien Neil
a915b999c9 crypto/tls: change SendSessionTicket to take an options struct
To allow for future evolution of the API, make
QUICConn.SendSessionTicket take a QUICSessionTicketOptions
rather than a single bool.

For #60107

Change-Id: I798fd0feec5c7581e3c3574e2de99611c81df47f
Reviewed-on: https://go-review.googlesource.com/c/go/+/514997
Reviewed-by: Roland Shoemaker <roland@golang.org>
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2023-08-02 17:14:49 +00:00
qmuntal
a09ea59198 runtime: cpu profiler to use high resolution timers on Windows
The CPU profiler skip samples if the sampling rate is too high
for the system timer resolution. This CL uses high resolution
timers on Windows when available, to avoid this problem.

Note that the default sampling rate (100Hz) is already too high
for the Windows timer resolution (15.6ms), so this CL also improves
the default Windows sampling coverage.

Not adding regression tests, as they would be too flaky.

Fixes #61665

Change-Id: Ifdadabc9ebaf56f397eac517bd0e5f1502b956b3
Reviewed-on: https://go-review.googlesource.com/c/go/+/514375
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2023-08-02 15:25:43 +00:00
qiulaidongfeng
54e9d6d5ef reflect: update Type.FieldByName documentation
Fixes #61495

Change-Id: I9abaf3613c797006b803dcb1dbee16f25ffb7516

Change-Id: I9abaf3613c797006b803dcb1dbee16f25ffb7516
GitHub-Last-Rev: 7bc2cba772
GitHub-Pull-Request: golang/go#61645
Reviewed-on: https://go-review.googlesource.com/c/go/+/514035
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2023-08-02 15:25:06 +00:00
Jes Cok
0f1491ded5 encoding/json: adjust comment to keep the same style as comment above
Change-Id: Id47d32d18031883b874bba4cf8541f75c5d7f9db
GitHub-Last-Rev: 98c671c00c
GitHub-Pull-Request: golang/go#61711
Reviewed-on: https://go-review.googlesource.com/c/go/+/515215
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2023-08-02 15:24:34 +00:00
Mauri de Souza Meneguzzo
76b8e80fab cmd/go: missing name in failed command error
Fixed the error reporting for an unknown command to
preserve the name when displaying the error message.

Fixes #61604

Change-Id: I13defb84e61265ab48ab514e9d4f1626a4a3f758
GitHub-Last-Rev: 5d2889c60c
GitHub-Pull-Request: golang/go#61607
Reviewed-on: https://go-review.googlesource.com/c/go/+/513555
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2023-08-02 15:10:16 +00:00
Roland Shoemaker
2350afd2e8 crypto/tls: restrict RSA keys in certificates to <= 8192 bits
Extremely large RSA keys in certificate chains can cause a client/server
to expend significant CPU time verifying signatures. Limit this by
restricting the size of RSA keys transmitted during handshakes to <=
8192 bits.

Based on a survey of publicly trusted RSA keys, there are currently only
three certificates in circulation with keys larger than this, and all
three appear to be test certificates that are not actively deployed. It
is possible there are larger keys in use in private PKIs, but we target
the web PKI, so causing breakage here in the interests of increasing the
default safety of users of crypto/tls seems reasonable.

Thanks to Mateusz Poliwczak for reporting this issue.

Fixes #61460
Fixes CVE-2023-29409

Change-Id: Ie35038515a649199a36a12fc2c5df3af855dca6c
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1912161
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Tatiana Bradley <tatianabradley@google.com>
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2023-08-02 14:34:55 +00:00
Dmitri Shuralyov
fb6f38dda1 cmd/distpack: test for .DS_Store files in all directories
macOS may write a .DS_Store file to any directory at any time in
the general case, unfortunately. Expand test rules to catch them
no matter where they may appear.

For #24904.

Change-Id: I98a2bb5d0ae2ab3a191ff87b33d6f8048ca39aa8
Reviewed-on: https://go-review.googlesource.com/c/go/+/514898
Reviewed-by: Russ Cox <rsc@golang.org>
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2023-08-01 22:29:19 +00:00
Dmitri Shuralyov
f719de0798 cmd/dist: tolerate macOS writing .DS_Store to GOROOT/bin
I was trying out gorebuild (a program that runs make.bash many times)
on a macOS system. Unfortunately there were a few failed invocations
on my first try, but not with a very good or interesting reason:

go tool dist: unexpected new file in $GOROOT/bin: .DS_Store

Tolerate it since it's not unexpected, and will not affect the build.

Change-Id: I656536b896098c2ba934667196d4ce82e706c8da
Reviewed-on: https://go-review.googlesource.com/c/go/+/513763
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2023-08-01 22:28:15 +00:00
Jes Cok
f32e0c30e4 encoding/json: replace "between or" with "between and" in comment
Change-Id: Id19a15f9367de10e08a9ec22a8cb50c58d517906
GitHub-Last-Rev: f413d71c9a
GitHub-Pull-Request: golang/go#61701
Reviewed-on: https://go-review.googlesource.com/c/go/+/514976
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2023-08-01 20:51:54 +00:00
Keith Randall
319504ce43 cmd/compile: implement float min/max in hardware for amd64 and arm64
Update #59488

Change-Id: I89f5ea494cbcc887f6fae8560e57bcbd8749be86
Reviewed-on: https://go-review.googlesource.com/c/go/+/514596
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2023-08-01 20:03:31 +00:00
Keith Randall
ca36301228 reflect: make linkable cross-references in documentation
This makes it easier to click around in documentation on pkg.go.dev.

Change-Id: Idc67c312bc72c612e660607e5400b43ecc110bc1
Reviewed-on: https://go-review.googlesource.com/c/go/+/514895
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2023-08-01 19:57:16 +00:00
root
6fe976545d runtime: handle SIGPE exception for p256 crypto package on s390x
Older s390x before z13 did not have support to carry out floating point operations i.e. they didn't have the support for vector instructions like VX/VL, etc.

Starting with Go1.19, z13 is the minimum hardware level for running Go on LoZ (s390x). The main cause of this issue was the refactoring of elliptic curve to internal/nistec. The new code structures made it difficult to dynamically switch implementations at runtime, so it became necessary (in order machines to continue to use the accelerated implementation) to require z13 as the minimum hardware.

Hence, Go programs, when run on unsupported hardware, should crash on startup instead of crashing out in crypto code.

Fixes: #58465

Change-Id: I7c1a816205d19b5ddd2f1464839d16fa96815384
Reviewed-on: https://go-review.googlesource.com/c/go/+/499495
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2023-08-01 17:36:28 +00:00
Rob Findley
b6898dde3d go/types, types2: instantiated interfaces must be concurrency safe
It is the responsibility of go/types to complete any interface it
creates, except for those created by the user using NewInterface.
However, this was not being done for interfaces created during
instantiation.

Fix this by (rather carefully) ensuring that all newly created
interfaces are eventually completed.

Fixes golang/go#61561

Change-Id: I3926e7c9cf80714838d2c1b5f36a2d3221c60c41
Reviewed-on: https://go-review.googlesource.com/c/go/+/513015
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2023-08-01 17:16:43 +00:00
Robert Griesemer
8597d052b2 go/types, types2: remove internal constant enableInterfaceInference
We're not going to disable this functionality as it would
invalidate code that now type-checks with type inference
based on this mechanism.

Change-Id: Ib11059e2f70a5a209693b06f754cba862e3650ec
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2023-08-01 16:43:44 +00:00
Junxian Zhu
68a32ced0f cmd/compile/internal/mips: use hardware NOP instruction as NOOP on mips platform
This CL uses mips hardware NOP instruction as NOOP on mips platform, instead of pseudo NOP "nor $zero,$zero,$zero".

Change-Id: I336e1ba4228b71e6bfc6be66b367a4327fb3b36e
Reviewed-on: https://go-review.googlesource.com/c/go/+/509015
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Reviewed-by: Joel Sing <joel@sing.id.au>
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2023-08-01 14:53:45 +00:00
Ian Lance Taylor
64c2072a94 text/template, html/template: use reflect.TypeFor for known types
For #60088

Change-Id: Ibc3983ca5cfe396087ddfa96c43cfe32ca47129a
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2023-08-01 14:30:25 +00:00
Ian Lance Taylor
56d3e84bb0 encoding/json: use reflect.TypeFor for known types
For #60088

Change-Id: I2e471c76de62944b14472966b63f5778124b9b8b
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2023-08-01 14:30:02 +00:00
Ian Lance Taylor
db25bc19e5 encoding/xml: use reflect.TypeFor for known types
For #60088

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2023-08-01 14:29:37 +00:00
apocelipes
29253f4d51 os/exec: Use the built-in function min instead of minInt
The built-in function `min` has been implemented and can now be used to replace some manually written `minType` helper functions.

Change-Id: Ie8ffc7881c8652ece752751214f1242bf76a6e7e
GitHub-Last-Rev: 5db344f131
GitHub-Pull-Request: golang/go#60866
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2023-08-01 14:29:09 +00:00
Jes Cok
840ec052f6 archive/tar: narrow trim range for formatter'formatString
Trim s[:len(b)-1] rather than s[:len(b)], since s[len(b)-1] is '/'.

Change-Id: I055da555810c112774549bd13d4faa8bfa0a60dc
GitHub-Last-Rev: 457977514d
GitHub-Pull-Request: golang/go#60729
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2023-08-01 14:28:42 +00:00