Commit Graph

51492 Commits

Author SHA1 Message Date
Michael Anthony Knyszek f0eca661ea [release-branch.go1.18] runtime: store consistent total allocation stats as uint64
Currently the consistent total allocation stats are managed as uintptrs,
which means they can easily overflow on 32-bit systems. Fix this by
storing these stats as uint64s. This will cause some minor performance
degradation on 32-bit systems, but there really isn't a way around this,
and it affects the correctness of the metrics we export.

For #52680.
Fixes #52689.

Change-Id: I8b1926116e899ae9f03d58e0320bcb9264945b3e
Reviewed-on: https://go-review.googlesource.com/c/go/+/411495
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
2022-07-06 19:27:52 +00:00
Dmitri Shuralyov 4068be56ce [release-branch.go1.18] go1.18.3
Change-Id: I89e0df420c0626add131103015cadd7b3f3dfd98
Reviewed-on: https://go-review.googlesource.com/c/go/+/409735
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Alex Rakoczy <alex@golang.org>
2022-06-01 16:38:24 +00:00
Yasuhiro Matsumoto 5a89bb334d [release-branch.go1.18] path/filepath: do not remove prefix "." when following path contains ":".
For #52476
Fixes #52479
Fixes CVE-2022-29804

Change-Id: I9eb72ac7dbccd6322d060291f31831dc389eb9bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/401595
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-on: https://go-review.googlesource.com/c/go/+/405234
Reviewed-by: Yasuhiro Matsumoto <mattn.jp@gmail.com>
2022-05-31 17:30:10 +00:00
Bryan C. Mills da608a20ed [release-branch.go1.18] misc/cgo/testsanitizers: buffer the signal channel in TestTSAN/tsan11
This fix is analogous to the one in CL 407888.

'go vet' catches the error, but it is not run on this file because the
file is (only) compiled when running testsanitizers/TestTSAN.

Fixes #53115.
Updates #53113.

Change-Id: I74f7b7390a9775ff00a06214c1019ba28846dd11
Reviewed-on: https://go-review.googlesource.com/c/go/+/409094
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
(cherry picked from commit 0f57c88bce)
Reviewed-on: https://go-review.googlesource.com/c/go/+/408823
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-05-30 20:29:29 +00:00
David Taylor a34f420774 [release-branch.go1.18] crypto/tls: avoid extra allocations in steady-state Handshake calls
The Read and Write methods of *tls.Conn call Handshake
unconditionally, every time they are called, expecting it to only
perform a new handshake if required.

However in go 1.17 handshakeContext was extended to set up a
cancelable Context, and importantly did so prior to checking if a
handshake is required. This thus causes it to allocate on every call,
even in those that are no-ops when called in a Read or Write on an
established connection, sometimes leading to very large numbers of
allocations during reads.

This change adds an early return, prior to setting up the context or
proceeding into the handshakeMutex and checking the handshake error, if
the handshake status atomic indicates handshake is already complete.

name                                     old allocs/op  new allocs/op  delta
Throughput/MaxPacket/1MB/TLSv12-10          1.07k ± 0%     0.62k ± 0%  -42.16%  (p=0.000 n=4+5)
Throughput/MaxPacket/1MB/TLSv13-10          1.70k ± 0%     1.25k ± 0%     ~     (p=0.079 n=4+5)
Throughput/MaxPacket/2MB/TLSv12-10          1.62k ± 0%     0.73k ± 0%  -55.18%  (p=0.008 n=5+5)
Throughput/MaxPacket/2MB/TLSv13-10          2.26k ± 0%     1.36k ± 0%  -39.64%  (p=0.008 n=5+5)
Throughput/MaxPacket/4MB/TLSv12-10          2.74k ± 0%     0.95k ± 0%  -65.35%  (p=0.008 n=5+5)
Throughput/MaxPacket/4MB/TLSv13-10          3.37k ± 0%     1.58k ± 0%  -53.15%  (p=0.008 n=5+5)
Throughput/MaxPacket/8MB/TLSv12-10          4.96k ± 0%     1.39k ± 0%  -72.06%  (p=0.016 n=4+5)
Throughput/MaxPacket/8MB/TLSv13-10          5.60k ± 0%     2.01k ± 0%  -64.05%  (p=0.008 n=5+5)
Throughput/MaxPacket/16MB/TLSv12-10         9.42k ± 0%     2.27k ± 1%  -75.92%  (p=0.016 n=4+5)
Throughput/MaxPacket/16MB/TLSv13-10         10.0k ± 0%      2.9k ± 0%  -71.39%  (p=0.008 n=5+5)
Throughput/MaxPacket/32MB/TLSv12-10         18.3k ± 0%      4.0k ± 0%  -77.97%  (p=0.008 n=5+5)
Throughput/MaxPacket/32MB/TLSv13-10         18.9k ± 0%      4.6k ± 0%  -75.62%  (p=0.008 n=5+5)
Throughput/MaxPacket/64MB/TLSv12-10         36.2k ± 0%      7.5k ± 0%  -79.15%  (p=0.008 n=5+5)
Throughput/MaxPacket/64MB/TLSv13-10         36.7k ± 0%      8.1k ± 0%  -78.06%  (p=0.008 n=5+5)
Throughput/DynamicPacket/1MB/TLSv12-10      1.12k ± 0%     0.63k ± 0%  -44.20%  (p=0.008 n=5+5)
Throughput/DynamicPacket/1MB/TLSv13-10      1.76k ± 0%     1.26k ± 0%  -28.22%  (p=0.016 n=5+4)
Throughput/DynamicPacket/2MB/TLSv12-10      1.68k ± 0%     0.74k ± 0%  -56.11%  (p=0.008 n=5+5)
Throughput/DynamicPacket/2MB/TLSv13-10      2.32k ± 0%     1.37k ± 0%  -40.80%  (p=0.008 n=5+5)
Throughput/DynamicPacket/4MB/TLSv12-10      2.80k ± 0%     0.96k ± 0%  -65.81%  (p=0.008 n=5+5)
Throughput/DynamicPacket/4MB/TLSv13-10      3.43k ± 0%     1.59k ± 0%  -53.57%  (p=0.008 n=5+5)
Throughput/DynamicPacket/8MB/TLSv12-10      5.03k ± 0%     1.39k ± 0%  -72.27%  (p=0.008 n=5+5)
Throughput/DynamicPacket/8MB/TLSv13-10      5.66k ± 0%     2.02k ± 0%  -64.27%  (p=0.008 n=5+5)
Throughput/DynamicPacket/16MB/TLSv12-10     9.48k ± 0%     2.28k ± 1%  -75.98%  (p=0.008 n=5+5)
Throughput/DynamicPacket/16MB/TLSv13-10     10.1k ± 0%      2.9k ± 0%  -71.34%  (p=0.008 n=5+5)
Throughput/DynamicPacket/32MB/TLSv12-10     18.4k ± 0%      4.0k ± 0%  -78.13%  (p=0.008 n=5+5)
Throughput/DynamicPacket/32MB/TLSv13-10     19.0k ± 0%      4.6k ± 0%  -75.54%  (p=0.008 n=5+5)
Throughput/DynamicPacket/64MB/TLSv12-10     36.2k ± 0%      7.6k ± 1%  -79.02%  (p=0.008 n=5+5)
Throughput/DynamicPacket/64MB/TLSv13-10     36.8k ± 0%      8.2k ± 1%  -77.76%  (p=0.008 n=5+5)

Fixes #52791

Change-Id: Iacb1f9bf7802022960d9dbce141b8c0587a614d4
Reviewed-on: https://go-review.googlesource.com/c/go/+/379034
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Filippo Valsorda <valsorda@google.com>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
(cherry picked from commit a4af356075)
Reviewed-on: https://go-review.googlesource.com/c/go/+/405545
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Alex Rakoczy <alex@golang.org>
2022-05-27 14:59:08 +00:00
Tatiana Bradley c838098c32 [release-branch.go1.18 crypto/tls: randomly generate ticket_age_add
As required by RFC 8446, section 4.6.1, ticket_age_add now holds a
random 32-bit value. Before this change, this value was always set
to 0.

This change also documents the reasoning for always setting
ticket_nonce to 0. The value ticket_nonce must be unique per
connection, but we only ever send one ticket per connection.

Updates #52814
Fixes #52833
Fixes CVE-2022-30629

Change-Id: I6c2fc6ca0376b7b968abd59d6d3d3854c1ab68bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/405994
Reviewed-by: Tatiana Bradley <tatiana@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Run-TryBot: Tatiana Bradley <tatiana@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit fe4de36198)
Reviewed-on: https://go-review.googlesource.com/c/go/+/408575
Run-TryBot: Roland Shoemaker <roland@golang.org>
2022-05-27 14:58:06 +00:00
Russ Cox 6c65a4ab8e [release-branch.go1.18] os/exec: return clear error for missing cmd.Path
Following up on CL 403694, there is a bit of confusion about
when Path is and isn't set, along with now the exported Err field.
Catch the case where Path and Err (and lookPathErr) are all unset
and give a helpful error.

Updates #52574
Followup after #43724.

Fixes #53057
Fixes CVE-2022-30580

Change-Id: I03205172aef3801c3194f5098bdb93290c02b1b6
Reviewed-on: https://go-review.googlesource.com/c/go/+/403759
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
(cherry picked from commit 960ffa98ce)
Reviewed-on: https://go-review.googlesource.com/c/go/+/408577
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
2022-05-27 14:57:10 +00:00
Rob Pike a08baaad1a [release-branch.go1.18] text/template/parse: allow space after continue or break
Trivial fix: We must skip space after either of these keywords
before we expect a closing delimiter.

Also delete the stutter-generating extra 'in' in the error message.
(See what I did there?)

For #51670
Fixes #52878

Change-Id: If5415632c36eaac6699bdc0aa6ce18be956c9b53
Reviewed-on: https://go-review.googlesource.com/c/go/+/392615
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Trust: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit 41a82aa9c3)
Reviewed-on: https://go-review.googlesource.com/c/go/+/406074
Reviewed-by: Alex Rakoczy <alex@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-05-26 17:27:08 +00:00
Matthew Dempsky e1b14f53c1 [release-branch.go1.18] cmd/compile: backport fix for #51840
This CL is a manual backport of CLs 403837 and 404914 to Go 1.18.

CL 403837 was intended just as a simplification CL, but evidently it
also fixed #51840. However, for backporting to Go 1.18, the existing
logic needs to be preserved to support -G=0 mode (which still relies
on Ntype).

Fixes #51849.

Change-Id: Ib060b0bc67ecf26de8a65d5b4d2f8a65cd547517
Reviewed-on: https://go-review.googlesource.com/c/go/+/405436
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
2022-05-25 19:31:22 +00:00
Wayne Zuo e46ac38370 [release-branch.go1.18] cmd/compile: allow exporting `.rcvr` ident
Noder pass will build a closure to implement generic function
instantiation which may produce `.dict` and `.rcvr` ident.
Since we allow `.dict` during exporting, we should allow `.rcvr` too.

Fixes #52242.

Change-Id: Ifc3912ba5155b5ac1887f20830da64f4fb3fceb6
Reviewed-on: https://go-review.googlesource.com/c/go/+/404314
Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
(cherry picked from commit ac39dbdf58)
Reviewed-on: https://go-review.googlesource.com/c/go/+/404774
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
2022-05-25 19:31:01 +00:00
Roland Shoemaker 32dedaa69e [release-branch.go1.18] [release-branch.go1.18 crypto/rand: properly handle large Read on windows
Use the batched reader to chunk large Read calls on windows to a max of
1 << 31 - 1 bytes. This prevents an infinite loop when trying to read
more than 1 << 32 -1 bytes, due to how RtlGenRandom works.

This change moves the batched function from rand_unix.go to rand.go,
since it is now needed for both windows and unix implementations.

Updates #52561
Fixes #52933
Fixes CVE-2022-30634

Change-Id: Id98fc4b1427e5cb2132762a445b2aed646a37473
Reviewed-on: https://go-review.googlesource.com/c/go/+/402257
Run-TryBot: Roland Shoemaker <roland@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Filippo Valsorda <valsorda@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit bb1f441618)
Reviewed-on: https://go-review.googlesource.com/c/go/+/406634
Reviewed-by: Damien Neil <dneil@google.com>
2022-05-25 19:26:12 +00:00
Cherry Mui 04337a6d10 [release-branch.go1.18] misc/cgo/testsanitizers: use buffered channel in tsan12.go
os/signal.Notify requires that "the caller must ensure that c has
sufficient buffer space to keep up with the expected signal rate"
as it does a nonblocking send when it receives a signal. The test
currently using a unbuffered channel, which means it may miss the
signal if the signal arrives before the channel receive operation.

Fixes #53043.
Updates #52998.

Change-Id: Icdcab9396d735506480ef880fb45a4669fa7cc8f
Reviewed-on: https://go-review.googlesource.com/c/go/+/407888
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit 62e1302267)
Reviewed-on: https://go-review.googlesource.com/c/go/+/408114
2022-05-25 19:25:08 +00:00
David Chase cf5fa2b4a7 cmd/compile: be sure to export types mentioned in f.i.g. method signature
When a fully instantiated generic method is exported, be sure to also
export the types in its signature.

Updates #52279.
Fixes #52286.

Change-Id: Icc6bca05b01f914cf67faaf1bf184eaa5484f521
Reviewed-on: https://go-review.googlesource.com/c/go/+/405118
Run-TryBot: David Chase <drchase@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit 1284cc2495)
Reviewed-on: https://go-review.googlesource.com/c/go/+/405543
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
2022-05-17 17:29:34 +00:00
Heschi Kreinick 8ed0e51b5e [release-branch.go1.18] go1.18.2
Change-Id: I2f9a3e6819d10190117973262568aaacf47435e0
Reviewed-on: https://go-review.googlesource.com/c/go/+/405477
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: David Chase <drchase@google.com>
2022-05-10 16:47:15 +00:00
Robert Findley 020fc47501 [release-branch.go1.18] go/types, types2: use a type lookup by identity in method lookup
Named type identity is no longer canonical. For correctness, named types
need to be compared with types.Identical. Our method set algorithm was
not doing this: it was using a map to de-duplicate named types, relying
on their pointer identity. As a result it was possible to get incorrect
results or even infinite recursion, as encountered in #52715.

To fix this, look up types by identity in NewMethodSet and
LookupFieldOrMethod. This does a linear search among types with equal
origin. Alternatively we could use a *Context to do a hash lookup, but
in practice we will be considering a small number of types, and so
performance is not a concern and a linear lookup is simpler. This also
means we don't have to rely on our type hash being perfect, which we
don't depend on elsewhere.

Also add more tests for NewMethodSet and LookupFieldOrMethod involving
generics.

Fixes #52804

Change-Id: I04dfeff54347bc3544d95a30224c640ef448e9b7
Reviewed-on: https://go-review.googlesource.com/c/go/+/404099
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
(cherry picked from commit f088f4962e)
Reviewed-on: https://go-review.googlesource.com/c/go/+/405117
Reviewed-by: Alan Donovan <adonovan@google.com>
2022-05-10 15:00:03 +00:00
Heschi Kreinick b2b4b9e015 [release-branch.go1.18] net: skip TestDialCancel on darwin-arm64
We're turning up Macs in a network environment that clashes with this
test. I don't think it's critical to get it working, so skip it.

For #49149.
Fixes #52706.

Change-Id: I925e3ecc5356c4cefd208bdcff3d98021215d0b4
Reviewed-on: https://go-review.googlesource.com/c/go/+/402181
Reviewed-by: Alex Rakoczy <alex@golang.org>
Run-TryBot: Heschi Kreinick <heschi@google.com>
Auto-Submit: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit 06b0a655a1)
Reviewed-on: https://go-review.googlesource.com/c/go/+/405294
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2022-05-09 21:42:12 +00:00
Maisem Ali 45568433ed [release-branch.go1.18] net/http/httptest: fix race in Server.Close
When run with race detector the test fails without the fix.

For #51799
Fixes #51897

Change-Id: I273adb6d3a2b1e0d606b9c27ab4c6a9aa4aa8064
GitHub-Last-Rev: a5ddd146a2
GitHub-Pull-Request: golang/go#51805
Reviewed-on: https://go-review.googlesource.com/c/go/+/393974
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Trust: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
(cherry picked from commit 1d19cea740)
Reviewed-on: https://go-review.googlesource.com/c/go/+/401317
Reviewed-by: David Chase <drchase@google.com>
2022-05-09 20:28:28 +00:00
Robert Findley 6fabc53cae [release-branch.go1.18] go/types: clarify that contexts do not guarantee deduplication
Documentation around the use of types.Context is unclear about whether
contexts guarantee deduplication of identical instances. Add explicit
disclaimers that this is not the case.

Fixes golang/go#52028

Change-Id: I6651587315d3cbf9e8d70a69d3e2ec5cedd00da5
Reviewed-on: https://go-review.googlesource.com/c/go/+/396536
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
(cherry picked from commit 83327b4ae4)
Reviewed-on: https://go-review.googlesource.com/c/go/+/397674
Reviewed-by: Russ Cox <rsc@golang.org>
2022-05-09 20:28:06 +00:00
Keith Randall 2375a6882e [release-branch.go1.18] cmd/compile: always write fun[0] in incomplete itab
runtime.getitab need filled fun[0] to identify whether
implemented the interface.

Fixes #51738
Fixes #52244

Change-Id: I0173b98f4e1b45e3a0183a5b60229d289140d1e6
Reviewed-on: https://go-review.googlesource.com/c/go/+/399058
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/399974
Reviewed-by: Austin Clements <austin@google.com>
2022-05-09 20:25:20 +00:00
Michael Pratt 4f4542479d [release-branch.go1.18] runtime: align m.procid to 8 bytes on 32-bit systems
https://go-review.googlesource.com/c/go/+/383434 started using
atomic Load64 on this field, which breaks 32 bit platforms which
require 64-bit alignment of uint64s that are passed to atomic operations.

Not sure why this doesn't break everywhere, but I saw it break on
my laptop during all.bash.

For #51776.
Fixes #52305.

Change-Id: Ida27b23068b3cc7208fce3c97b69a464ccf68209
Reviewed-on: https://go-review.googlesource.com/c/go/+/399754
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
(cherry-picked from commit ea7e3e3c0f)
Reviewed-on: https://go-review.googlesource.com/c/go/+/399954
Run-TryBot: Michael Pratt <mpratt@google.com>
2022-05-09 20:24:44 +00:00
Keith Randall 13bda0ebfb [release-branch.go1.18] cmd/compile: disable rewrite loop detector for deadcode-only changes
We're guaranteed we won't infinite loop on deadcode-only changes,
because each change converts valid -> invalid, and there are only a
finite number of valid values.

The loops this test is looking for are those generated by rule
applications, so it isn't useful to check for loops when rules aren't
involved.

Fixes #52366

Change-Id: Idf1abeab9d47baafddc3a1197d5064faaf07ef78
Reviewed-on: https://go-review.googlesource.com/c/go/+/392760
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Trust: Josh Bleecher Snyder <josharian@gmail.com>
(cherry picked from commit 15728ce950)
Reviewed-on: https://go-review.googlesource.com/c/go/+/400514
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: David Chase <drchase@google.com>
2022-05-09 20:24:02 +00:00
Dan Kortschak 0287895996 [release-branch.go1.18] reflect: ensure map keys match key type in MapIndex and SetMapIndex
name                          old time/op    new time/op    delta
Map/StringKeys/MapIndex-8           2.36µs ± 5%    2.55µs ±11%  +7.98%  (p=0.006 n=10+9)
Map/StringKeys/SetMapIndex-8        4.86µs ± 7%    4.77µs ± 1%    ~     (p=0.211 n=10+9)
Map/StringKindKeys/MapIndex-8       2.29µs ± 3%    2.28µs ± 4%    ~     (p=0.631 n=10+10)
Map/StringKindKeys/SetMapIndex-8    4.44µs ± 3%    4.61µs ± 1%  +3.78%  (p=0.000 n=10+10)
Map/Uint64Keys/MapIndex-8           3.42µs ± 9%    3.11µs ± 2%  -9.20%  (p=0.000 n=10+9)
Map/Uint64Keys/SetMapIndex-8        5.17µs ± 3%    5.00µs ± 1%  -3.23%  (p=0.000 n=9+10)

For #52379
Fixes #52386

Change-Id: I545c71ea3145280828ca4186aad036a6c02016ed
Reviewed-on: https://go-review.googlesource.com/c/go/+/400635
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
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>
(cherry picked from commit 11a650bb4a)
Reviewed-on: https://go-review.googlesource.com/c/go/+/404000
Reviewed-by: David Chase <drchase@google.com>
2022-05-09 20:23:04 +00:00
Damien Neil c0599c5b78 [release-branch.go1.18] syscall: check correct group in Faccessat
The Faccessat call checks the user, group, or other permission bits of a
file to see if the calling process can access it. The test to see if the
group permissions should be used was made with the wrong group id, using
the process's group id rather than the file's group id. Fix this to use
the correct group id.

No test since we cannot easily change file permissions when not running
as root and the test is meaningless if running as root.

For #52313
Fixes #52440

Change-Id: I4e2c84754b0af7830b40fd15dedcbc58374d75ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/399539
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit f66925e854)
Reviewed-on: https://go-review.googlesource.com/c/go/+/401079
Auto-Submit: Damien Neil <dneil@google.com>
Reviewed-by: Tatiana Bradley <tatiana@golang.org>
Run-TryBot: Tatiana Bradley <tatiana@golang.org>
Auto-Submit: Tatiana Bradley <tatiana@golang.org>
Run-TryBot: Damien Neil <dneil@google.com>
2022-05-09 20:17:54 +00:00
Bryan C. Mills 2d6881b91a [release-branch.go1.18] cmd/go: write changes to go.mod and go.sum after loading the command-line-arguments package
This entrypoint was missed in CL 349600, and the behavior happened not
to be covered by existing tests.

Updates #52331.
Fixes #52468.

Change-Id: Iccf12e8e633215abe4bfa1c3ca2fe3a8391b5ba5
Reviewed-on: https://go-review.googlesource.com/c/go/+/401536
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
(cherry picked from commit cf697253ab)
Reviewed-on: https://go-review.googlesource.com/c/go/+/404094
Reviewed-by: David Chase <drchase@google.com>
2022-05-09 20:16:25 +00:00
Robert Findley f4f19990c6 [release-branch.go1.18] go/types,types2: delay the check for conflicting struct field names
In #52529, we observed that checking types for duplicate fields and
methods during method collection can result in incorrect early expansion
of the base type. Fix this by delaying the check for duplicate fields.
Notably, we can't delay the check for duplicate methods as we must
preserve the invariant that added method names are unique.

After this change, it may be possible in the presence of errors to have
a type-checked type containing a method name that conflicts with a field
name. With the previous logic conflicting methods would have been
skipped. This is a change in behavior, but only for invalid code.
Preserving the existing behavior would likely require delaying method
collection, which could have more significant consequences.

As a result of this change, the compiler test fixedbugs/issue28268.go
started passing with types2, being previously marked as broken. The fix
was not actually related to the duplicate method error, but rather the
fact that we stopped reporting redundant errors on the calls to x.b()
and x.E(), because they are now (valid!) methods.

Updates #52529
Fixes #52558

Change-Id: I850ce85c6ba76d79544f46bfd3deb8538d8c7d00
Reviewed-on: https://go-review.googlesource.com/c/go/+/403455
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit b75e492b35)
Reviewed-on: https://go-review.googlesource.com/c/go/+/403754
2022-05-09 20:14:33 +00:00
Cuong Manh Le 1fb46d2a20 [release-branch.go1.18] cmd/compile: set correct package for vars/params/results from nested instantiation
Fixes #52606

Change-Id: Ib5b2cdbdbce1d516aa10a0df349449b756f2f404
Reviewed-on: https://go-review.googlesource.com/c/go/+/398474
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/403174
2022-05-09 20:13:36 +00:00
Keith Randall 9247bdddba [release-branch.go1.18] sync/atomic: use consistent first-store-in-progress marker
We need to use the same marker everywhere. My CL to rename the
marker (CL 241661) and the CL to add more uses of the marker
under the old name (CL 241678) weren't coordinated with each other.

Fixes #52615

Change-Id: I97023c0769e518491924ef457fe03bf64a2cefa6
Reviewed-on: https://go-review.googlesource.com/c/go/+/403094
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/403198
2022-05-09 20:12:59 +00:00
Keith Randall 500d75a555 [release-branch.go1.18] cmd/compile: use dictionary to convert type to shaped interface type
When we convert a type to a shaped interface type, we are not able
to recognize the itab. So passing the itab by dictionary as the
workaround.

Fixes #52691.

Change-Id: I75c23c7dd215daf9761dc24116a8af2c28c6d948
Reviewed-on: https://go-review.googlesource.com/c/go/+/401034
Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-on: https://go-review.googlesource.com/c/go/+/403934
Reviewed-by: Than McIntosh <thanm@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
2022-05-09 20:11:53 +00:00
eric fang 66432dadb1 [release-branch.go1.18] runtime: support for debugger function calls on linux/arm64
This CL adds support for debugger function calls on linux arm64
platform. The protocol is basically the same as in CL 109699, except for
the following differences:
1, The abi difference which affect parameter passing and frame layout.
2, Stores communication information in R20.
3, The closure register is R26.
4, Use BRK 0 instruction to generate a breakpoint. The saved PC in
sigcontext is the PC where the signal occurred, not the next PC.

In addition, this CL refactors the existing code (which is dedicated to
amd64) for easier multi-arch scaling.

Fixes #52699

Change-Id: I06b14e345cc89aab175f4a5f2287b765da85a86b
Reviewed-on: https://go-review.googlesource.com/c/go/+/395754
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Eric Fang <eric.fang@arm.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit 9717e8f80f)
Reviewed-on: https://go-review.googlesource.com/c/go/+/404215
Reviewed-by: David Chase <drchase@google.com>
2022-05-09 20:11:26 +00:00
Ian Lance Taylor 3e79a84853 [release-branch.go1.18] runtime: don't block preemption signal in new M's or ensureSigM
No test because we already have a test in the syscall package.
The issue reports 1 failure per 100,000 iterations, which is rare enough
that our builders won't catch the problem.

For #52226
Fixes #52375

Change-Id: I17633ff6cf676b6d575356186dce42cdacad0746
Reviewed-on: https://go-review.googlesource.com/c/go/+/400315
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
(cherry picked from commit e3982660a7)
Reviewed-on: https://go-review.googlesource.com/c/go/+/400318
Reviewed-by: Austin Clements <austin@google.com>
2022-05-06 23:12:25 +00:00
Bryan C. Mills a286c7dd79 [release-branch.go1.18] syscall: relax output check in TestGroupCleanupUserNamespace
“If you have a procedure with ten parameters, you probably missed some.”
― attr. Alan J. Perlis

I argue that the same is true for hard-coded special cases.

In TestGroupCleanupUserNamespace, instead of a curated list of strings
observed in the wild we now check for a prefix, as was done for
TestGroupCleanup in CL 24670.

Updates #52088.
Fixes #52149.

Change-Id: I59c5b0c048113e306996c0f8247e09c714d2423a
Reviewed-on: https://go-review.googlesource.com/c/go/+/397316
Trust: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
(cherry picked from commit 434b2a5d0d)
Reviewed-on: https://go-review.googlesource.com/c/go/+/398234
Reviewed-by: Russ Cox <rsc@golang.org>
2022-05-04 15:44:30 +00:00
Roland Shoemaker c6688b58ea [release-branch.go1.18] crypto/x509: properly handle issuerUniqueID and subjectUniqueID
Updates #51754
Fixes #51859

Change-Id: I3bfa15db3497de9fb82d6391d87fca1ae9ba6543
Reviewed-on: https://go-review.googlesource.com/c/go/+/394297
Trust: Roland Shoemaker <roland@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
Auto-Submit: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
(cherry picked from commit 9a53b472b5)
Reviewed-on: https://go-review.googlesource.com/c/go/+/399500
Reviewed-by: Russ Cox <rsc@golang.org>
2022-05-04 15:38:23 +00:00
Robert Griesemer 94274d0ffd [release-branch.go1.18] cmd/compile/internal/types2: use correct value of iota
Fixes #52441.

Change-Id: I5cbf8c448dba037e9e0c5fe8f209401d6bf7d43f
Reviewed-on: https://go-review.googlesource.com/c/go/+/401134
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/401174
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
2022-05-02 20:59:21 +00:00
Bryan C. Mills 24fcbb9808 [release-branch.go1.18] cmd/go: allow '-buildvcs=auto' and treat it as the default
When we added VCS stamping in the Go 1.18 release, we defaulted to
-buildvcs=true, on the theory that most folks will actually want VCS
information stamped.

We also made -buildvcs=true error out if a VCS directory is found and
no VCS tool is available, on the theory that a user who builds with
'-buildvcs=true' will be very surprised if the VCS metadata is
silently missing.

However, that causes a problem for CI environments that don't have the
appropriate VCS tool installed. (And we know that's a common situation
because we're in that situation ourselves — see #46693!)

The new '-buildvcs=auto' setting provides a middle ground: it stamps
VCS information by default when the tool is present (and reports
explicit errors if the tool errors out), but omits the metadata
when the tool isn't present at all.

Updates #51748.
Updates #51999.
Fixes #51798.

Change-Id: Iebc955c2af0abca9b7517f62ca48b1d944eb2df4
Reviewed-on: https://go-review.googlesource.com/c/go/+/398855
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit 4569fe6410)
Reviewed-on: https://go-review.googlesource.com/c/go/+/400454
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
2022-04-20 16:33:28 +00:00
Dmitri Shuralyov 0b0d2fe66d [release-branch.go1.18] go1.18.1
Change-Id: If2b91acf7fb4a55cded985d6f2a2ab058c1b7bd3
Reviewed-on: https://go-review.googlesource.com/c/go/+/399818
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2022-04-12 15:40:19 +00:00
Julie Qiu 84264fceca [release-branch.go1.18] encoding/pem: fix stack overflow in Decode
Previously, Decode called decodeError, a recursive function that was
prone to stack overflows when given a large PEM file containing errors.

Credit to Juho Nurminen of Mattermost who reported the error.

Fixes CVE-2022-24675
Updates #51853
Fixes #52037

Change-Id: Iffe768be53c8ddc0036fea0671d290f8f797692c
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1391157
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Filippo Valsorda <valsorda@google.com>
(cherry picked from commit 794ea5e828010e8b68493b2fc6d2963263195a02)
Reviewed-on: https://go-review.googlesource.com/c/go/+/399817
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-04-12 14:45:32 +00:00
Robert Findley 9535031e32 [release-branch.go1.18] go/types: don't report errors for untyped int shifts on Go < 1.13
CL 337529 introduced upfront type-checking of constant shift operands,
to avoid converting their type to uint (per the spec). However, it
had an oversight in that the checks intended for non-constant operands
still ran after the explicit checking of constant operands. As a
result, there are at least two bugs:
 - When GoVersion is < 1.13, we report spurious errors for untyped
   constant shift operands.
 - When the operand is an untyped float constant, we still convert to
   uint (this was a known bug reported in #47410).

Looking at this now, it seems clear that we can avoid both of these bugs
by simply not running the additional checks in the case of a constant
operand. However, this should be considered with some care, as shifts
are notoriously tricky.

While cherry-picking, the new test file is updated to use the go1_12
package name, following our convention for specifying language version
in the release branch.

Fixes #52032

Change-Id: Ia489cc5470b92a8187d3de0423d05b309daf47bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/396775
Reviewed-by: Robert Griesemer <gri@golang.org>
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit 8a816d5efc)
Reviewed-on: https://go-review.googlesource.com/c/go/+/397680
2022-04-06 17:10:45 +00:00
Robert Griesemer 2097b2d51b [release-branch.go1.18] go/types, types2: fix overlap test for union termlist
Per the spec, "the type sets of all non-interface terms must be
pairwise disjoint (the pairwise intersection of the type sets must
be empty)" in a union.

For the overlap test, the existing implementation casually mixed
syntactic union terms (which may have interface type) with type set
terms (which are normalized/expanded and must not have interface
type). As a consequence, in some cases the overlap test failed.

This change skips terms with interface types in the overlap test.

For this cherry-pick, also rename the files ending in issue51607.go
to issue51607.go2 because the 1.18 branch requires tests containing
generic features to end in .go2.

Fixes #52119.

Change-Id: I8ae9953db31f0a0428389c6a45a6696aa2450219
Reviewed-on: https://go-review.googlesource.com/c/go/+/397695
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/398154
2022-04-06 16:37:43 +00:00
Filippo Valsorda c9b9a010eb [release-branch.go1.18] crypto/elliptic: tolerate zero-padded scalars in generic P-256
Updates #52075
Fixes #52077
Fixes CVE-2022-28327

Change-Id: I595a7514c9a0aa1b9c76aedfc2307e1124271f27
Reviewed-on: https://go-review.googlesource.com/c/go/+/397137
Trust: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Julie Qiu <julie@golang.org>
2022-04-06 16:36:36 +00:00
Filippo Rossi f92bfa440f [release-branch.go1.18] cmd/go: prevent panic in go work use
Check if paths passed as arguments are existing directories.

Fixes #52140
Updates #51841

Change-Id: Icfd148627e6f2c4651d6f923a37d413e68c67f6c
GitHub-Last-Rev: 77fffa7635
GitHub-Pull-Request: golang/go#51845
Reviewed-on: https://go-review.googlesource.com/c/go/+/394154
Trust: Bryan Mills <bcmills@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com>
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Reviewed-on: https://go-review.googlesource.com/c/go/+/397995
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2022-04-05 15:18:32 +00:00
Roland Shoemaker abb3f05524 [release-branch.go1.18] crypto/x509: only disable SHA-1 verification for certificates
Disable SHA-1 signature verification in Certificate.CheckSignatureFrom,
but not in Certificate.CheckSignature. This allows verification of OCSP
responses and CRLs, which still use SHA-1 signatures, but not on
certificates.

Updates #41682
Fixes #51852

Change-Id: Ia705eb5052e6fc2724fed59248b1c4ef8af6c3fe
Reviewed-on: https://go-review.googlesource.com/c/go/+/394294
Trust: Roland Shoemaker <roland@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
Auto-Submit: Roland Shoemaker <roland@golang.org>
Reviewed-by: Jordan Liggitt <liggitt@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit 35998c0109)
Reviewed-on: https://go-review.googlesource.com/c/go/+/398074
Reviewed-by: Cherry Mui <cherryyz@google.com>
2022-04-05 15:01:00 +00:00
John Anthony c6ba470316 [release-branch.go1.18] cmd/go: prevent go work use panic when given a file
The current implementation fails to identify that an argument to go work
use is a file when expecting a directory, and panics when attempting to
access it as a directory. This change checks arguments are directories
and generates an error otherwise.

Fixes #51764
Updates #51749

Change-Id: If8f69d233409e93fcf391a8774bace74c031c986
Reviewed-on: https://go-review.googlesource.com/c/go/+/393615
Reviewed-by: Bryan Mills <bcmills@google.com>
Trust: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Trust: Ian Lance Taylor <iant@golang.org>
(cherry picked from commit a84ef50021)
Reviewed-on: https://go-review.googlesource.com/c/go/+/397994
Reviewed-by: Cherry Mui <cherryyz@google.com>
2022-04-05 14:17:24 +00:00
Brad Fitzpatrick 30d9077a34 [release-branch.go1.18] crypto/x509: fix Certificate.Verify crash
(Primarily from Josh)

Updates #51759
Fixes #51763
Fixes CVE-2022-27536

Co-authored-by: Josh Bleecher Snyder <josharian@gmail.com>
Change-Id: I0a6f2623b57750abd13d5e194b5c6ffa3be6bf72
Reviewed-on: https://go-review.googlesource.com/c/go/+/393655
Trust: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit 0fca8a8f25)
Reviewed-on: https://go-review.googlesource.com/c/go/+/394655
Trust: Roland Shoemaker <roland@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2022-04-04 21:16:23 +00:00
Robert Findley 6412231192 [release-branch.go1.18] go/types, types2: preserve parent scope when substituting receivers
For #51920
Fixes #52007

Change-Id: I29e44a52dabee5c09e1761f9ec8fb2e8795f8901
Reviewed-on: https://go-review.googlesource.com/c/go/+/395538
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit 9b90838712)
Reviewed-on: https://go-review.googlesource.com/c/go/+/395680
2022-04-04 20:28:11 +00:00
Paul E. Murphy 0bf8319883 [release-branch.go1.18] runtime: make static/dynamic startup detection work with musl on ppc64le
The glibc loader explicitly sets the first doubleword on the stack (R1)
to $0 to indicate it was dynamically loaded.

An ELFv2 ABI compliant loader will set R3/R4 to argc/argv when starting
the process, and R13 to TLS. musl is not compliant. Instead it passes
argc/argv like the kernel, but R3/R4 are in an undefined state and R13
is valid.

With the knowledge above, the startup code can be modified to
dynamically handle all three cases when linked internally.

Fixes #51874

Change-Id: I5de33862c161900d9161817388bbc13a65fdc69c
Reviewed-on: https://go-review.googlesource.com/c/go/+/394654
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Trust: Paul Murphy <murp@ibm.com>
Trust: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/394794
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
2022-04-04 20:27:32 +00:00
Matthew Dempsky 78b8b4a176 [release-branch.go1.18] cmd/compile: replace Type.OrigSym with Type.OrigType
First law of cmd/compile frontend development: thou shalt not rely on
types.Sym.

This CL replaces Type.OrigSym with Type.OrigType, which semantically
matches what all of the uses within the frontend actually care about,
and avoids using types.Sym, which invariably leads to mistakes because
symbol scoping in the frontend doesn't work how anyone intuitively
expects it to.

Fixes #51855.

Change-Id: I4affe6ee0718103ce5006ab68aa7e1bb0cac6881
Reviewed-on: https://go-review.googlesource.com/c/go/+/394274
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
(cherry picked from commit adae6ec542)
Reviewed-on: https://go-review.googlesource.com/c/go/+/394296
2022-04-04 20:26:50 +00:00
Robert Findley 6ebf676289 [release-branch.go1.18] all update vendored golang.org/x/tools
Update x/tools from internal-branch.go1.18-vendor to pick up the
cherry-picked fix for #51727.

The following commands were used, from the cmd module:
  go get -d golang.org/x/tools@internal-branch.go1.18-vendor
  go mod tidy
  go mod vendor

Fixes #51727

Change-Id: I380a66fee585c8c12f9646de87ffb5e398b4ba80
Reviewed-on: https://go-review.googlesource.com/c/go/+/397476
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2022-04-04 20:04:16 +00:00
Robert Findley 69bc821a01 [release-branch.go1.18] cmd/compile/internal/importer: key tparams by Package instead of pkgname
The importer type param index used package name as type parameter key,
causing type parameters to be reused/overwritten if two packages in the
import graph had the same combination of (package name, declaration
name, type parameter name).

Fix this by instead using the *Package in the key.

Note: -G=3 was added to typeparam/issue51836.go, as it is necessary for
1.18 but not for tip.

For #51836
Fixes #51847

Change-Id: I881ceaf3cf7c1ab4e0835962350feb552e79b233
Reviewed-on: https://go-review.googlesource.com/c/go/+/394219
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
(cherry picked from commit fd1b5904ae)
Reviewed-on: https://go-review.googlesource.com/c/go/+/394854
2022-04-04 19:57:18 +00:00
Cuong Manh Le c258e9d07d [release-branch.go1.18] cmd/compile: fix panic with nested dead hidden closures
CL 342350 fixed deadcode panic with dead hidden closures. However, a
closure may contains nested dead hidden closures, so we need to mark
them dead as well.

Fixes #51846

Change-Id: Ib54581adfc1bdea60e74d733cd30fd8e783da983
Reviewed-on: https://go-review.googlesource.com/c/go/+/394079
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/394080
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2022-04-04 19:55:44 +00:00
Bryan C. Mills d17c5731ba [release-branch.go1.18] cmd/go: avoid stamping VCS metadata in test binaries
Invoking a VCS tool requires that the VCS tool be installed, and also
adds latency to build commands. Unfortunately, we had been mistakenly
loading VCS metadata for tests of "main" packages.

Users almost never care about versioning for test binaries, because
'go test' runs the test in the source tree and test binaries are only
rarely used outside of 'go test'. So the user already knows exactly
which version the test is built against, because the source code is
right there — it's not worth the overhead to stamp.

Fixes #51767.
Updates #51723.

Change-Id: I96f191c5a765f5183e5e10b6dfb75a0381c99814
Reviewed-on: https://go-review.googlesource.com/c/go/+/393894
Trust: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Trust: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit 67f6b8c987)
Reviewed-on: https://go-review.googlesource.com/c/go/+/393878
Reviewed-by: Cherry Mui <cherryyz@google.com>
2022-04-04 19:04:21 +00:00