Commit Graph

2649 Commits

Author SHA1 Message Date
David Chase fc5073bc15 runtime,internal: move runtime/internal/sys to internal/runtime/sys
Cleanup and friction reduction

For #65355.

Change-Id: Ia14c9dc584a529a35b97801dd3e95b9acc99a511
Reviewed-on: https://go-review.googlesource.com/c/go/+/600436
Reviewed-by: Keith Randall <khr@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@golang.org>
2024-07-23 19:05:35 +00:00
David Chase f9eb3e3cd5 runtime,internal: move runtime/internal/math to internal/runtime/math
Cleanup and friction reduction.

Updates #65355.

Change-Id: I6c4fcd409d044c00d16561fe9ed2257877d73f5b
Reviewed-on: https://go-review.googlesource.com/c/go/+/600435
Reviewed-by: Keith Randall <khr@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@golang.org>
2024-07-23 19:05:16 +00:00
Tim King 4e77872d16 go/types: fix assertion failure when range over int is not permitted
Fixes an assertion failure in Checker.rangeStmt that range over int
only has a key type and no value type. When allowVersion failed,
rangeKeyVal returns Typ[Invalid] for the value instead of nil. When
Config.Error != nil, rangeStmt proceeded. The check for rhs[1]==nil
was not enough to catch this case. It must also check rhs[1]==

Updates #68334

Change-Id: Iffa1b2f7b6a94570ec50b8c6603e727a45ba3357
Reviewed-on: https://go-review.googlesource.com/c/go/+/597356
Reviewed-by: Robert Findley <rfindley@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-07-12 18:39:52 +00:00
Manuel Sabin 73186ba002 crypto/internal/cryptotest: add common tests for the hash.Hash interface
This CL creates the cryptotest package to host a suite of tests
for interfaces that are implemented in the crypto package.  This CL
includes a set of tests for the hash.Hash interface, and calls these tests from the tests of hash.Hash implementations in crypto/.

Tests for other interfaces will be included in subsequent CLs.

Updates #25309

Change-Id: Ic47086fd7f585e812c8b0d2186c50792c773781e
Reviewed-on: https://go-review.googlesource.com/c/go/+/592855
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Russell Webb <russell.webb@protonmail.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Roland Shoemaker <roland@golang.org>
2024-07-09 15:52:04 +00:00
Cuong Manh Le e9a306e004 types2, go/types: correct NewTypeParam documentation
Signature type does not have SetTypeParams method, only Named type.

Change-Id: Ic7a25c24cb821540d921eb2c94dfff31f28f7aa4
Reviewed-on: https://go-review.googlesource.com/c/go/+/593955
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2024-06-21 18:41:24 +00:00
Briheet Singh Yadav 22cf1e7f7e go/doc: added the predeclared identifiers clear, min, max
Fixes: #68028

Change-Id: Ib341b9f57b001cccc5dc9e822b7feaabcdb77e63
GitHub-Last-Rev: 8dd3467016
GitHub-Pull-Request: golang/go#68029
Reviewed-on: https://go-review.googlesource.com/c/go/+/593015
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Reviewed-by: Robert Griesemer <gri@google.com>
2024-06-17 17:35:24 +00:00
Robert Griesemer 69e7b2bcd6 go/types, types2: typecheck cases even if switch expression is invalid
Rather than returning right away when the switch expression is invalid,
continue type checking the type switch case.

The code was already written to be able to deal with an invalid switch
expression but it returned early nevertheless. Remove the early return
and rewrite the switch expression test slightly to better control the
scope of the x operand, leading to cleaner code.

In the process replace a tricky use of the x operand with a use of the
sx operand (plus guard, since sx may be nil if invalid).

Fixes #67962.

Change-Id: I1dc08d10078753c68449637622beb4018ed23803
Reviewed-on: https://go-review.googlesource.com/c/go/+/592555
Reviewed-by: Robert Findley <rfindley@google.com>
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2024-06-13 20:48:17 +00:00
Robert Griesemer e15cc7ab82 go/types, types2: allow range-over-func to omit iteration variables
For #65236.

Change-Id: I63e57c1d8e9765979e9e58b45948008964b32384
Reviewed-on: https://go-review.googlesource.com/c/go/+/592176
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
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Auto-Submit: Robert Griesemer <gri@google.com>
2024-06-13 15:47:50 +00:00
Robert Griesemer 0d478d8e07 go/types, types2: add missing Unalias calls in type unifier
The unification code has "early exits" when the compared
types are pointer-identical.

Because of Alias nodes, we cannot simply compare x == y but we
must compare Unalias(x) == Unalias(y). Still, in the common case
there are no aliases, so as a minor optimization we write:

        x == y || Unalias(x) == Unalias(y)

to test whether x and y are (pointer-) identical.
Add the missing Unalias calls in the place where we forgot them.

Fixes #67872.

Change-Id: Ia26ffe7205b0417fc698287a4aeb1c900d30cc0d
Reviewed-on: https://go-review.googlesource.com/c/go/+/591975
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
2024-06-11 16:24:39 +00:00
cuishuang 71751350b0 all: make function comments match function names
Change-Id: Ideb9ef00e7bc660b005fc080973fd9f3d36c5a1f
Reviewed-on: https://go-review.googlesource.com/c/go/+/589536
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: shuang cui <imcusg@gmail.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
2024-06-03 14:56:25 +00:00
Robert Griesemer cc95d85fe4 cmd/compile: remove quoting in favor of clearer prose in error messages
In an attempt to address issue #65790 (confusing error messages),
quoting of names was introduced for some (but not all) names used
in error messages.

That CL solved the issue at hand at the cost of extra punctuation
(the quotes) plus some inconsistency (not all names were quoted).

This CL removes the quoting again in favor or adding a qualifying noun
(such as "name", "label", "package", "built-in" etc.) before a user-
specified name where needed.

For instance, instead of

        invalid argument to `max'

we now say

        invalid argument to built-in max

There's still a chance for confusion. For instance, before an error
might have been

        `sadly' not exported by package X

and now it would be

        name sadly not exported by package X

but adverbs (such as "sadly") seem unlikely names in programs.

This change touches a lot of files but only affects error messages.

Fixes #67685.

Change-Id: I95435b388f92cade316e2844d59ecf6953b178bc
Reviewed-on: https://go-review.googlesource.com/c/go/+/589118
Auto-Submit: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
2024-05-30 19:19:55 +00:00
Russ Cox 2a7ca156b8 all: document legacy //go:linkname for final round of modules
Add linknames for most modules with ≥50 dependents.
Add linknames for a few other modules that we know
are important but are below 50.

Remove linknames from badlinkname.go that do not merit
inclusion (very small number of dependents).
We can add them back later if the need arises.

Fixes #67401. (For now.)

Change-Id: I1e49fec0292265256044d64b1841d366c4106002
Reviewed-on: https://go-review.googlesource.com/c/go/+/587756
Auto-Submit: Russ Cox <rsc@golang.org>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-05-29 17:58:53 +00:00
Russ Cox 9a8995b8b6 all: document legacy //go:linkname for modules with ≥100 dependents
For #67401.

Change-Id: I015408a3f437c1733d97160ef2fb5da6d4efcc5c
Reviewed-on: https://go-review.googlesource.com/c/go/+/587598
Reviewed-by: Cherry Mui <cherryyz@google.com>
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2024-05-29 16:25:21 +00:00
Robert Griesemer 13c49096fd go/types, types2: report error when using uninstantiated signature alias
For #67547.
Fixes #67683.

Change-Id: I9487820ab4e2bd257d253a7016df45729b29f836
Reviewed-on: https://go-review.googlesource.com/c/go/+/588855
Auto-Submit: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
2024-05-29 02:09:54 +00:00
Robert Griesemer ee29dbe43e go/types, types2: don't lose alias information during unification
While at it, rename asTypeParam to asBoundTypeParam for clarity.

For #67547.
Fixes #67628.

Change-Id: I2f447c4cd4d72f5315fe9323d82fcb9bf33657c6
Reviewed-on: https://go-review.googlesource.com/c/go/+/588797
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
2024-05-29 02:09:51 +00:00
Russ Cox f85c40438f internal/runtime/exithook: make safe for concurrent os.Exit
Real programs can call os.Exit concurrently from multiple goroutines.
Make internal/runtime/exithook not crash in that case.

The throw on panic also now runs in the deferred context,
so that we will see the full stack trace that led to the panic.
That should give us more visibility into the flaky failures on
bugs #55167 and #56197 as well.

Fixes #67631.

Change-Id: Iefdf71b3a3b52a793ca88d89a9c270eb50ece094
Reviewed-on: https://go-review.googlesource.com/c/go/+/588235
Reviewed-by: Than McIntosh <thanm@google.com>
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Auto-Submit: Russ Cox <rsc@golang.org>
2024-05-24 16:41:13 +00:00
Robert Griesemer 3ea2be1e47 go/types, types2: pull up Unalias call to cover all of cycleFinder.typ
Without a test because it's unclear the situation can actually occur,
but the code is correct because it now mimics the behavior without
explicit Alias nodes.

For #67547.

Change-Id: I21a31af28880ca6d599fe465563d9574c26ed1f1
Reviewed-on: https://go-review.googlesource.com/c/go/+/588117
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2024-05-24 13:54:20 +00:00
Robert Griesemer 2fe2e4d593 go/types, types2: document why Unalias is not needed in some places
Documentation change only.

For #67547.

Change-Id: I0da480299c33239bcd1e059f8b9c6d48d8f26609
Reviewed-on: https://go-review.googlesource.com/c/go/+/587820
TryBot-Bypass: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
2024-05-23 23:17:08 +00:00
Robert Griesemer 13e3068b9c go/types, types2: add missing Unalias call to type string functionality
For #67547.

Change-Id: I999cd31f9a01f91e7984b4e7012c81e8bd9c6b06
Reviewed-on: https://go-review.googlesource.com/c/go/+/587940
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
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2024-05-23 21:17:10 +00:00
Alan Donovan bf91eb3a8b std: fix calls to Printf(s) with non-constant s
In all cases the intent was not to interpret s as a format string.
In one case (go/types), this was a latent bug in production.
(These were uncovered by a new check in vet's printf analyzer.)

Updates #60529

Change-Id: I3e17af7e589be9aec1580783a1b1011c52ec494b
Reviewed-on: https://go-review.googlesource.com/c/go/+/587855
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Russ Cox <rsc@golang.org>
2024-05-23 18:42:28 +00:00
Robert Griesemer 83ff4fd571 go/types, types2: factor out check for updated type arguments (cleanup)
Change-Id: I3e2668e4a24c145f121199a5f7f4278ff5d5f1da
Reviewed-on: https://go-review.googlesource.com/c/go/+/587676
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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2024-05-23 03:04:07 +00:00
Robert Griesemer f294ddeb29 go/types, types2: instantiate generic alias types
For #46477.

Change-Id: Ifa47d3ff87f67c60fa25654e54194ca8b31ea5a2
Reviewed-on: https://go-review.googlesource.com/c/go/+/567617
Auto-Submit: Robert Griesemer <gri@google.com>
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2024-05-23 03:01:18 +00:00
Russ Cox ff2070d939 runtime: move exit hooks into internal/runtime/exithook
This removes a //go:linkname usage in the coverage implementation.

For #67401.

Change-Id: I0602172c7e372a84465160dbf46d9fa371582fff
Reviewed-on: https://go-review.googlesource.com/c/go/+/586259
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-05-23 02:32:19 +00:00
Ian Lance Taylor b0b1d42db3 all: change from sort functions to slices functions where feasible
Doing this because the slices functions are slightly faster and
slightly easier to use. It also removes one dependency layer.

This CL does not change packages that are used during bootstrap,
as the bootstrap compiler does not have the required slices functions.
It does not change the go/scanner package because the ErrorList
Len, Swap, and Less methods are part of the Go 1 API.

Change-Id: If52899be791c829198e11d2408727720b91ebe8a
Reviewed-on: https://go-review.googlesource.com/c/go/+/587655
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Reviewed-by: Damien Neil <dneil@google.com>
2024-05-23 01:00:11 +00:00
Russ Cox 5fc5555feb all: document legacy //go:linkname for modules with ≥10,000 dependents
For #67401.


Change-Id: I9216f01ac4dc9d239f3f20a633fd0d5072cf0a0f
Reviewed-on: https://go-review.googlesource.com/c/go/+/587219
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2024-05-23 00:18:59 +00:00
Roland Shoemaker 27c302d5d5 crypto/internal/hpke: add basic implementation
Only implements the sender role, since that's all we need for
client-side ECH for now.

Change-Id: Ia7cba1bc3bad8e8dc801d98d5ea859738b1f2790
Reviewed-on: https://go-review.googlesource.com/c/go/+/585436
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Roland Shoemaker <roland@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2024-05-22 22:33:33 +00:00
Robert Griesemer 6861b2eff5 go/types, types2: better error message for invalid ERROR pattern in tests
When unquoting of an ERROR or ERRORx pattern fails, say so instead of
simply printing "syntax error".

Change-Id: I586dffa86ca80f5b40a5cbe16a7005cc1f7862f8
Reviewed-on: https://go-review.googlesource.com/c/go/+/586958
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2024-05-22 19:45:33 +00:00
Robert Griesemer 8d464e4ae3 go/types, types2: operand.AssignableTo must consider Alias types
Fixes regression from Go 1.22.

For #67547.

Change-Id: Id0d07d6b24e1eab6ed1c7476d9d9b82d28aee80a
Reviewed-on: https://go-review.googlesource.com/c/go/+/587161
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Robert Findley <rfindley@google.com>
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2024-05-22 19:44:53 +00:00
Robert Griesemer 5ab8f90745 go/types, types2: operand.convertibleTo must consider Alias types
Fixes regression from Go 1.22.

Fixes #67540.
For #67547.

Change-Id: I61f642970c6a9bd8567654bb5ecf645ae77b3bcc
Reviewed-on: https://go-review.googlesource.com/c/go/+/587159
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Auto-Submit: Robert Griesemer <gri@google.com>
2024-05-22 18:51:00 +00:00
Russ Cox df4e49366c internal/coverage/cfile: remove more //go:linkname usage
Move code so that basic imports work instead
of //go:linkname for metadata lists.

For #67401.

Change-Id: Id02075570befc45a9426559aad2137ab540928b2
Reviewed-on: https://go-review.googlesource.com/c/go/+/585915
Reviewed-by: Than McIntosh <thanm@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-05-22 09:57:47 +00:00
Robert Griesemer ca17bda856 go/types, types2: underIs must consider Alias types
Fixes regression from Go 1.22.

For #67547.

Change-Id: I012681c7b8b01b02018b313dd3804690bc7aeed1
Reviewed-on: https://go-review.googlesource.com/c/go/+/587158
Reviewed-by: Robert Griesemer <gri@google.com>
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2024-05-21 22:39:35 +00:00
Robert Griesemer 4b778470f8 go/types, types2: coreType/String must consider Alias types
Fixes regression from Go 1.22.

For #67547.

Change-Id: Idd319b9d2a73c824caa2c821df0e2fcd4f58cb08
Reviewed-on: https://go-review.googlesource.com/c/go/+/587176
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
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2024-05-21 22:34:27 +00:00
Robert Griesemer 814e72f2ef go/types, types2: don't panic converting a constant to aliased type parameter
For #67547.

Change-Id: I1b2118a311dce906327ae6e29e582da539c60b2b
Reviewed-on: https://go-review.googlesource.com/c/go/+/587157
Auto-Submit: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
2024-05-21 22:09:36 +00:00
Robert Griesemer 816b6031fe go/types, types2: add missing Unalias calls (clarification)
This change adds an Unalias call in applyTypeFunc and arrayPtrDeref.
At the moment this doesn't change anything or fix any bugs because
of the way these two functions are invoked, but that could change
in the future.

Also, manually reviewed all type assertions to Type types.

Excluding assertions to type parameters, no obvious issues
were found except for #67540 for which a separate fix is pending.

There are potential issues with assertions type parameters
which will be addressed in a follow-up CL.

For #67547.

Change-Id: I312268dc5e104f95b68f115f00aec3ec4c82e41f
Reviewed-on: https://go-review.googlesource.com/c/go/+/587156
Reviewed-by: Robert Findley <rfindley@google.com>
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2024-05-21 22:01:56 +00:00
Russ Cox 180ea45566 runtime/coverage: remove uses of //go:linkname
Move code to internal/coverage/cfile, making it possible to
access directly from testing/internal/testdeps, so that we can
avoid needing //go:linkname hacks.

For #67401.

Change-Id: I10b23a9970164afd2165e718ef3b2d9e86783883
Reviewed-on: https://go-review.googlesource.com/c/go/+/585820
Auto-Submit: Russ Cox <rsc@golang.org>
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2024-05-21 19:41:02 +00:00
Robert Griesemer d68d485405 go/types, types2: use GOEXPERIMENT to enable alias type parameters
For #46477.

Change-Id: Ia3558f9d2bf43fdd9e3618bd9f800d268e13b367
Reviewed-on: https://go-review.googlesource.com/c/go/+/586956
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
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2024-05-21 16:24:41 +00:00
Felix Geisendörfer 1b9dc3e178 runtime: increase profiling stack depth to 128
The current stack depth limit for alloc, mutex, block, threadcreate and
goroutine profiles of 32 frequently leads to truncated stack traces in
production applications. Increase the limit to 128 which is the same
size used by the execution tracer.

Create internal/profilerecord to define variants of the runtime's
StackRecord, MemProfileRecord and BlockProfileRecord types that can hold
arbitrarily big stack traces. Implement internal profiling APIs based on
these new types and use them for creating protobuf profiles and to act
as shims for the public profiling APIs using the old types.

This will lead to an increase in memory usage for applications that
use the impacted profile types and have stack traces exceeding the
current limit of 32. Those applications will also experience a slight
increase in CPU usage, but this will hopefully soon be mitigated via CL
540476 and 533258 which introduce frame pointer unwinding for the
relevant profile types.

For #43669.

Change-Id: Ie53762e65d0f6295f5d4c7d3c87172d5a052164e
Reviewed-on: https://go-review.googlesource.com/c/go/+/572396
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>
2024-05-21 14:38:45 +00:00
David Chase 22344e11f2 cmd/compile: add structs.HostLayout
This is for the proposal, plus a few bug fixes
that would/will be necessary when this is put into
actual use.

Fixes #66408.
Updates #63131.

Change-Id: I3a66e09d707dd579c59f155e7f53367f41214c30
Reviewed-on: https://go-review.googlesource.com/c/go/+/578355
Reviewed-by: Austin Clements <austin@google.com>
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Auto-Submit: David Chase <drchase@google.com>
2024-05-20 21:19:39 +00:00
aimuz 2b0f2f8169 maps: add All, Keys, Values, Insert, Collect
Fixed #61900.

Change-Id: Ic5962dc92b3102e7448635bef541414a2eaf415e
GitHub-Last-Rev: 3c6f74d617
GitHub-Pull-Request: golang/go#67521
Reviewed-on: https://go-review.googlesource.com/c/go/+/586716
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2024-05-20 16:01:35 +00:00
Carlos Amedee 5890b023a5 internal/trace: move v2 tracer into trace directory
This change moves the v2 tracer into the trace directory.

Updates #67367

Change-Id: I3657b4227002cb00fdf29c797434800ea796715e
Reviewed-on: https://go-review.googlesource.com/c/go/+/584538
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-05-17 18:48:18 +00:00
Cherry Mui 41aab30bd2 all: add push linknames to allow legacy pull linknames
CL 585358 adds restrictions to disallow pull-only linknames
(currently off by default). Currently, there are quite some pull-
only linknames in user code in the wild. In order not to break
those, we add push linknames to allow them to be pulled. This CL
includes linknames found in a large code corpus (thanks Matthew
Dempsky and Michael Pratt for the analysis!), that are not
currently linknamed.

Updates #67401.

Change-Id: I32f5fc0c7a6abbd7a11359a025cfa2bf458fe767
Reviewed-on: https://go-review.googlesource.com/c/go/+/586137
Reviewed-by: Russ Cox <rsc@golang.org>
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2024-05-17 16:48:00 +00:00
Robert Griesemer f73dd8173a go/types: re-enable suppressed gcimporter tests
Port CL 577616 from types2 to go/types allows us
to re-enable these tests.

Fixes #66859.
Fixes #67436.
Updates #50259.
Updates #65294.

Change-Id: I573e51cf16546ac1c115beac5322b51dd998c881
Reviewed-on: https://go-review.googlesource.com/c/go/+/586236
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Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
2024-05-17 16:22:59 +00:00
Robert Griesemer 26ed0528c7 go/types, types2: report error for floating-point iteration variable
While at it, slightly improve documentation and code.
Also, add additional test cases for #66561.

Updates #66561.
Fixes #67027.

Change-Id: I682b0e9227e065d6bbd199871c2e1ecff13edc66
Reviewed-on: https://go-review.googlesource.com/c/go/+/580937
Reviewed-by: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
2024-05-16 18:56:00 +00:00
Rob Findley 6a05055780 go/ast: fix bug handling the result of yield in Preorder
Once yield returns false, ast.Preorder must not call yield on any more
nodes. Even after the function passed to ast.Inspect returns false, it
may be invoked again with a non-nil node. Therefore, we must explicitly
truncate the inspection.

For #66339

Change-Id: I2b01e4e96a2d7aca785467c15ab59da13208c161
Reviewed-on: https://go-review.googlesource.com/c/go/+/585520
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
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2024-05-16 16:34:10 +00:00
qiulaidongfeng 6cd066f8b2 cmd/go: add -changed to query for non-defaults in the env
Fixes #34208

Change-Id: I8ec2d96262dcd7cbf870f6173690143c54190722
GitHub-Last-Rev: 6543df4784
GitHub-Pull-Request: golang/go#65655
Reviewed-on: https://go-review.googlesource.com/c/go/+/563137
Reviewed-by: Alan Donovan <adonovan@google.com>
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Reviewed-by: Michael Matloob <matloob@golang.org>
2024-05-16 14:34:32 +00:00
Alan Donovan 7730e5b783 go/ast: add Preorder go1.23 iterator
This CL adds a new function Preorder that makes it
easier to iterate over the nodes of a syntax tree.
In particular, break, continue, and return retain
their usual continuations.

Fixes #66339

Change-Id: I438b3c23780c91ed589871ad3b8822d54e8fabc7
Reviewed-on: https://go-review.googlesource.com/c/go/+/570680
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Alan Donovan <adonovan@google.com>
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2024-05-15 21:44:50 +00:00
Robert Griesemer 3c8f925606 go/types, types2: factor out type parameter access into genericType
Also, remove types2.Signature.SetTypeParams as it is not used
and does not exist in go/types.

Change-Id: I16c3ae988988d3735907e9c6c56e8626497ea405
Reviewed-on: https://go-review.googlesource.com/c/go/+/581817
Reviewed-by: Robert Griesemer <gri@google.com>
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Auto-Submit: Robert Griesemer <gri@google.com>
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2024-05-15 21:33:05 +00:00
Robert Griesemer bf279b71e2 go/types, types2: add Alias.{TypeParams, SetTypeParams, TypeArgs, Origin}
Fixes #67143.

Change-Id: I8bf9c2559f95d3d6a40874454208ae074b68875c
Reviewed-on: https://go-review.googlesource.com/c/go/+/583757
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
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2024-05-15 21:32:30 +00:00
Rob Findley 3d80761531 go/types, types2: add additional documentation for Underlying
The concept of an underlying type has become more complicated with the
addition of TypeParam and Alias types. Update the documentation to
clarify that it strips off Named, TypeParam, and Alias types, and to
reference the spec.

Fixes #65774

Change-Id: I40a8efe15b45591b95068acbf4ef9eae17a4cef1
Reviewed-on: https://go-review.googlesource.com/c/go/+/585456
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Findley <rfindley@google.com>
2024-05-15 20:03:31 +00:00
Cherry Mui c4772d30bf cmd/link: disallow pull-only linknames
As mentioned in CL 584598, linkname is a mechanism that, when
abused, can break API integrity and even safety of Go programs.
CL 584598 is a first step to restrict the use of linknames, by
implementing a blocklist. This CL takes a step further, tightening
up the restriction by allowing linkname references ("pull") only
when the definition side explicitly opts into it, by having a
linkname on the definition (possibly to itself). This way, it is at
least clear on the definition side that the symbol, despite being
unexported, is accessed outside of the package. Unexported symbols
without linkname can now be actually private. This is similar to
the symbol visibility rule used by gccgo for years (which defines
unexported non-linknamed symbols as C static symbols).

As there can be pull-only linknames in the wild that may be broken
by this change, we currently only enforce this rule for symbols
defined in the standard library. Push linknames are added in the
standard library to allow things build.

Linkname references to external (non-Go) symbols are still allowed,
as their visibility is controlled by the C symbol visibility rules
and enforced by the C (static or dynamic) linker.

Assembly symbols are treated similar to linknamed symbols.

This is controlled by -checklinkname linker flag, currently not
enabled by default. A follow-up CL will enable it by default.

Change-Id: I07344f5c7a02124dbbef0fbc8fec3b666a4b2b0e
Reviewed-on: https://go-review.googlesource.com/c/go/+/585358
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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Reviewed-by: Russ Cox <rsc@golang.org>
2024-05-15 19:57:43 +00:00