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48326 commits

Author SHA1 Message Date
Keith Randall 217f5dd496 doc: document additional atomic.Value methods
For #44513. Fixes #46022.

Change-Id: Id1d87fbd4034461953760ce77201f87ed723ff88
Reviewed-on: https://go-review.googlesource.com/c/go/+/319549
Trust: Keith Randall <khr@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2021-05-21 22:39:16 +00:00
Cherry Mui 6a81e063dd [dev.typeparams] runtime: fix misuse of funcPC
funcPC expects a func value. There are places where we pass an
unsafe.Pointer, which is technically undefined.

In proc.go it is actually representing a func value, so the
expression does the right thing. Cast to a func value so it is
clearer.

In os_freebsd.go it is a raw function pointer. Using funcPC on a
raw function pointer is incorrect. Just use it directly instead.

Change-Id: I3c5d61cea08f0abf5737834b520f9f1b583c1d34
Reviewed-on: https://go-review.googlesource.com/c/go/+/321953
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2021-05-21 22:12:18 +00:00
Cherry Mui 7d928460a1 [dev.typeparams] runtime: use internal/abi.FuncPCABI0 to reference ABI0 assembly symbols
Use FuncPCABI0 to reference ABI0 assembly symbols. Currently,
they are referenced using funcPC, which will get the ABI wrapper's
address. They don't seem to affect correctness (either the wrapper
is harmless, or, on non-AMD64 architectures, not enabled). They
should have been converted.

This CL does not yet completely eliminate funcPC. But at this
point we should be able to replace all remaining uses of funcPC
to internal/abi.FuncPCABIInternal.

Change-Id: I383a686e11d570f757f185fe46769a42c856ab77
Reviewed-on: https://go-review.googlesource.com/c/go/+/321952
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2021-05-21 22:12:04 +00:00
Cherry Mui 0e0a1f94f3 [dev.typeparams] runtime: use ABI0 handler addresses on Windows/ARM64
The handler address is passed to sigtramp, which calls it using
ABI0 calling convention. Use ABI0 symbols.

Change-Id: I5c16abef5e74a992d972fa5e100fed0ffb9f090a
Reviewed-on: https://go-review.googlesource.com/c/go/+/321951
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
2021-05-21 21:52:51 +00:00
Cherry Mui fb42fb705d [dev.typeparams] runtime: use internal/abi.FuncPCABI0 to take address of assembly functions
There are a few assembly functions in the runtime that are marked
as ABIInternal, solely because funcPC can get the right address.
The functions themselves do not actually follow ABIInternal (or
irrelevant). Now we have internal/abi.FuncPCABI0, use that, and
un-mark the functions.

Also un-mark assembly functions that are only called in assembly.
For them, it only matters if the caller and callee are consistent.

Change-Id: I240e126ac13cb362f61ff8482057ee9f53c24097
Reviewed-on: https://go-review.googlesource.com/c/go/+/321950
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2021-05-21 21:52:38 +00:00
Cherry Mui 21db1d193c [dev.typeparams] runtime: fix newproc arg size on ARM
At runtime startup it calls newproc from assembly code to start
the main goroutine. runtime.main has no arguments, so the arg
size should be 0, instead of 8.

While here, use clearer code sequence to open the frame.

Change-Id: I2bbb26a83521ea867897530b86a85b22a3c8be9d
Reviewed-on: https://go-review.googlesource.com/c/go/+/321957
Trust: Cherry Mui <cherryyz@google.com>
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2021-05-21 21:49:42 +00:00
Bryan C. Mills 3c656445f1 cmd/go: in TestScript/mod_replace, download an explicit module path
As of CL 318629, 'go mod download' without arguments does not save
checksums for module source code. Without a checksum, 'go list' will
not report the location of the source code even if it is present, in
order to prevent accidental access of mismatched code.

Downloading an explicit module here also more clearly expresses the
intent of the test (“download this module and see where it is”), and
may be somewhat more efficient (since the test doesn't need source
code for the other modules in the build list).

Updates #45332

Change-Id: Ic589b22478e3ed140b95365bb6729101dd598ccc
Reviewed-on: https://go-review.googlesource.com/c/go/+/321956
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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2021-05-21 21:07:03 +00:00
Ian Lance Taylor 76b2d6afed os: document that StartProcess puts files into blocking mode
Fixes #43894

Change-Id: I2add7b8a4f6ae69a5ef1c48703fde21a4b74307c
Reviewed-on: https://go-review.googlesource.com/c/go/+/321852
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2021-05-21 20:38:43 +00:00
Constantin Konstantinidis e4d7525c3e cmd/dist: display first class port status in json output
Fixes #38874

Change-Id: I819dd008fd6869d335888b4aa03dcf739da9a9a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/320069
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Trust: Daniel Martí <mvdan@mvdan.cc>
2021-05-21 18:55:18 +00:00
Jay Conrod 4fb10b2118 cmd/go: in 'go mod download' without args, don't save module zip sums
'go mod download' without arguments is frequently used to populate the
module cache. It tends to fetch a lot of extra files (for modules in
the build list that aren't needed to build packages in the main
module). It's annoying when sums are written for these extra files.

'go mod download mod@version' will still write sums for specific
modules in the build list. 'go mod download all' still has the
previous behavior.

For now, all invocations of 'go mod download' still update go.mod and
go.sum with changes needed to load the build list (1.15 behavior).

Fixes #45332

Change-Id: I9e17d18a7466ac7271a0e1a2b663f6b3cb168c97
Reviewed-on: https://go-review.googlesource.com/c/go/+/318629
Trust: Jay Conrod <jayconrod@google.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2021-05-21 17:49:01 +00:00
sryoya 4fda54ce3f doc/go1.17: document database/sql changes for Go 1.17
For #44513
Fixes #46008

Change-Id: If80d484f73a0eb6946abdc654eb2c0d3dd6db416
Reviewed-on: https://go-review.googlesource.com/c/go/+/320251
Reviewed-by: Heschi Kreinick <heschi@google.com>
Trust: Robert Findley <rfindley@google.com>
2021-05-21 17:43:46 +00:00
Adam Mitha 8876b9bd6a doc/go1.17: document io/fs changes for Go 1.17
For #44513
Fixes #46011

Change-Id: I862ef9a4314cd34fb8c828a8cd7d0a7b36c6f683
Reviewed-on: https://go-review.googlesource.com/c/go/+/320151
Reviewed-by: Heschi Kreinick <heschi@google.com>
Trust: Heschi Kreinick <heschi@google.com>
Trust: Robert Findley <rfindley@google.com>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
2021-05-21 17:35:47 +00:00
Aaron Sheah 5fee772c87 doc/go1.17: document archive/zip changes for Go 1.17
For #44513. Fixes #46000

Change-Id: I299d0b5657f1f96174d6e35d60daac8b36e59d29
GitHub-Last-Rev: e63461bff0
GitHub-Pull-Request: golang/go#46235
Reviewed-on: https://go-review.googlesource.com/c/go/+/320809
Reviewed-by: Heschi Kreinick <heschi@google.com>
Trust: Robert Findley <rfindley@google.com>
2021-05-21 17:35:02 +00:00
Dan Scales b1a398cf0f [dev.typeparams] cmd/compile: add import/export of calls to builtin functions
For generic functions, we have to leave the builtins in OCALL form,
rather than transform to specific ops, since we don't know the exact
types involved. Allow export/import of builtins in OCALL form.

Added new export/import test mapimp.go.

Change-Id: I571f8eeaa13b4f69389dbdb9afb6cc61924b9bf2
Reviewed-on: https://go-review.googlesource.com/c/go/+/321750
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
2021-05-21 17:14:19 +00:00
Dan Scales ccbfbb1c33 [dev.typeparams] cmd/compile: export OFUNCINST and OSELRECV2 nodes (for generic functions)
Added new test typeparam/factimp.go and changed a bunch of other tests
to test exporting more generic functions and types.

Change-Id: I573d75431cc92482f8f908695cfbc8e84dbb36d2
Reviewed-on: https://go-review.googlesource.com/c/go/+/321749
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
2021-05-21 17:03:30 +00:00
Tim Heckman 3148694f60 cmd/go: remove warning from module deprecation notice printing
Fixes #46294

Change-Id: I50023006dab83dee455f98a702ca1c72e61764ea
Reviewed-on: https://go-review.googlesource.com/c/go/+/321649
Trust: Jay Conrod <jayconrod@google.com>
Trust: Michael Matloob <matloob@golang.org>
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2021-05-21 16:51:34 +00:00
Robert Griesemer 243076da64 [dev.typeparams] cmd/compile/internal/types2: move signature checking into separate file
This only moves functionality from one file into another.
Except for import adjustments there are no changes to the
code.

Change-Id: Id0d20a7537f20abe3a257ad3f550b0cb4499598c
Reviewed-on: https://go-review.googlesource.com/c/go/+/321590
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
2021-05-21 15:26:27 +00:00
Robert Griesemer cfe0250497 [dev.typeparams] cmd/compile/internal/types2: move struct checking into separate file
This only moves functionality from one file into another.
Except for import adjustments there are no changes to the
code.

Change-Id: I8dff41fe82693c96b09a152975c3fd1e3b439e8d
Reviewed-on: https://go-review.googlesource.com/c/go/+/321589
Trust: Robert Griesemer <gri@golang.org>
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2021-05-21 15:26:25 +00:00
Robert Griesemer 211244e172 [dev.typeparams] cmd/compile/internal/types2: move interface checking into separate file
This only moves functionality from one file into another.
Except for import adjustments there are no changes to the
code.

Change-Id: Ia7d611d3a01c1ed3331dcc7cfe94a96f87b338e7
Reviewed-on: https://go-review.googlesource.com/c/go/+/321549
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
2021-05-21 15:26:23 +00:00
Jason A. Donenfeld 7e63c8b765 runtime: wait for Go runtime to initialize in Windows signal test
The test harness waits for "ready" as a sign that the Go runtime has
installed its signal handler and is ready to be tested. But actually,
while LoadLibrary starts the loading of the Go runtime, it does so
asynchronously, so the "ready" sign is potentially premature and
certainly racy. However, all exported cgo entry points make a call to
_cgo_wait_runtime_init_done which waits for that asynchronous
initialization to complete. Therefore, this commit fixes the test to
call into the exported "Dummy" cgo function before emitting the "ready"
sign, so that we're sure the Go runtime is actually loaded.

Updates #45638.

Change-Id: I9b12b172d45bdcc09d54dd301de3a3e499544834
Reviewed-on: https://go-review.googlesource.com/c/go/+/321769
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
2021-05-21 13:21:00 +00:00
Dan Scales 7b3ee6102d [dev.typeparams] cmd/compile: move to new export version, keep reading previous version
I added constants for the previous export versions, and for the final
generics export version. I also added a const for the current export
version. We can increment the current export version for unstable
changes in dev.typeparams, and eventally set it back to the generics
version (2) before release. Added the same constants in
typecheck/iexport.go, importer/iimport.go, and gcimporter/iimport.go,
must be kept in sync.

Put in the needed conditionals to be able to read old versions.

Added new export/import test listimp.dir.

Change-Id: I166d17d943e07951aa752562e952b067704aeeca
Reviewed-on: https://go-review.googlesource.com/c/go/+/319931
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
2021-05-21 04:03:26 +00:00
Dan Scales 15ad61aff5 [dev.typeparams] cmd/compile: get export/import of generic types & functions working
The general idea is that we now export/import typeparams, typeparam
lists for generic types and functions, and instantiated types
(instantiations of generic types with either new typeparams or concrete
types).

This changes the export format -- the next CL in the stack adds the
export versions and checks for it in the appropriate places.

We always export/import generic function bodies, using the same code
that we use for exporting/importing the bodies of inlineable functions.

To avoid complicated scoping, we consider all type params as unique and
give them unique names for types1. We therefore include the types2 ids
(subscripts) in the export format and re-create on import. We always
access the same unique types1 typeParam type for the same typeparam
name.

We create fully-instantiated generic types and functions in the original
source package. We do an extra NeedRuntimeType() call to make sure that
the correct DWARF information is written out. We call SetDupOK(true) for
the functions/methods to have the linker automatically drop duplicate
instantiations.

Other miscellaneous details:
 - Export/import of typeparam bounds works for methods (but not
   typelists) for now, but will change with the typeset changes.

 - Added a new types.Instantiate function roughly analogous to the
   types2.Instantiate function recently added.

 - Always access methods info from the original/base generic type, since
   the methods of an instantiated type are not filled in (in types2 or
   types1).

 - New field OrigSym in types.Type to keep track of base generic type
   that instantiated type was based on. We use the generic type's symbol
   (OrigSym) as the link, rather than a Type pointer, since we haven't
   always created the base type yet when we want to set the link (during
   types2 to types1 conversion).

 - Added types2.AsTypeParam(), (*types2.TypeParam).SetId()

 - New test minimp.dir, which tests use of generic function Min across
   packages. Another test stringimp.dir, which also exports a generic
   function Stringify across packages, where the type param has a bound
   (Stringer) as well. New test pairimp.dir, which tests use of generic
   type Pair (with no methods) across packages.

 - New test valimp.dir, which tests use of generic type (with methods
   and related functions) across packages.

 - Modified several other tests (adder.go, settable.go, smallest.go,
   stringable.go, struct.go, sum.go) to export their generic
   functions/types to show that generic functions/types can be exported
   successfully (but this doesn't test import).

Change-Id: Ie61ce9d54a46d368ddc7a76c41399378963bb57f
Reviewed-on: https://go-review.googlesource.com/c/go/+/319930
Trust: Dan Scales <danscales@google.com>
Trust: Robert Griesemer <gri@golang.org>
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2021-05-21 03:41:18 +00:00
Adam Mitha 831573cd21 io/fs: added an example for io/fs.WalkDir
The documentation currently does not show how to get an `FS` instance for the operating system's filesystem. This example demonstrates how to accomplish this using the `os` package.

Fixes #46083

Change-Id: I053111c12ab09ef13f0d04fcdff8a6ea0dccf379
Reviewed-on: https://go-review.googlesource.com/c/go/+/319989
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
2021-05-21 03:21:56 +00:00
Dan Scales 468efd5e2f [dev.typeparams] cmd/compile: change method instantiations back to being functions
Change all instantiated methods to being functions again. We found that
this is easier for adding the dictionary argument consistently. A method
wrapper will usually be added around the instantiation call, so that
eliminate the inconsistency in the type of the top-level method and the
the associated function node type.

Change-Id: I9034a0c5cc901e7a89e60756bff574c1346adbc7
Reviewed-on: https://go-review.googlesource.com/c/go/+/321609
Run-TryBot: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
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2021-05-20 23:01:37 +00:00
Tim King baa934d26d cmd: go get golang.org/x/tools/analysis@49064d23 && go mod vendor
This brings in CLs 312829, 317431, 319211.

Fixes #40356.
Fixes #46129.

Change-Id: I2ee1f858b2a41ffa60d88b0c17511ccad57f1816
Reviewed-on: https://go-review.googlesource.com/c/go/+/321389
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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2021-05-20 20:37:02 +00:00
Cherry Mui 382c5dd5f7 [dev.typeparams] internal/buildcfg: turn on register ABI on all AMD64 platforms
Register ABI is already enabled by default on AMD64 on Linux
(including Android), macOS, and Windows. This CL enables it on the
rest, specifically, on FreeBSD, OpenBSD, NetBSD, DragonflyBSD,
Solaris (including Illumos), iOS (simulator), and Plan 9.

Change-Id: I80fa20c8bbc8d67b16a19f71b65422e890210ab5
Reviewed-on: https://go-review.googlesource.com/c/go/+/321332
Trust: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2021-05-20 19:29:30 +00:00
Cherry Mui 240d6d00ca [dev.typeparams] cmd/link: mangle symbol ABI name on Plan 9
It is probably not strictly necessary (as we don't support
external linking on Plan 9). Do it for consistency (and less
confusion).

Change-Id: I0b48562061273ccbd4be83db4a981b8e465b1c95
Reviewed-on: https://go-review.googlesource.com/c/go/+/321331
Trust: Cherry Mui <cherryyz@google.com>
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2021-05-20 19:04:33 +00:00
Cherry Mui ed2001232a [dev.typeparams] runtime: use internal/abi.FuncPCABI0 for sigtramp PC on Plan 9
Same as CL 313230, for Plan 9.

Change-Id: I0e99c095856c4b21b89abdffa4c0699b24ea9428
Reviewed-on: https://go-review.googlesource.com/c/go/+/321330
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2021-05-20 19:04:21 +00:00
Cherry Mui 02117775d1 [dev.typeparams] cmd/compile, runtime: do not zero X15 on Plan 9
On Plan 9, we cannot use SSE registers in note handlers, so we
don't use X15 for zeroing (MOVOstorezero and DUFFZERO). Do not
zero X15 on Plan 9.

Change-Id: I2b083b01b27965611cb83d19afd66b383dc77846
Reviewed-on: https://go-review.googlesource.com/c/go/+/321329
Trust: Cherry Mui <cherryyz@google.com>
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2021-05-20 19:03:48 +00:00
Vishal Dalwadi 7c692cc7ea doc/go1.17: document changes to os package
Documents the changes to File.WriteString method.

For #44513.
Fixes #46018.

Change-Id: I3a8ef9df9f84662614d54802710bd705d626b995
Reviewed-on: https://go-review.googlesource.com/c/go/+/317910
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Trust: Cherry Mui <cherryyz@google.com>
2021-05-20 17:40:58 +00:00
Lapo Luchini ce9a3b79d5 crypto/x509: add new FreeBSD 12.2+ trusted certificate folder
Up to FreeBSD 12.1 the package ca_root_nss was needed in order to have
certificates under /usr/local/share/certs as the base system didn't have
a system trusted certificate store.

This has been fixed in FreeBSD 12.2 using /etc/ssl/certs:
https://svnweb.freebsd.org/base?view=revision&revision=357082

Fixes #46284

Change-Id: I912b1bacc30cdf20d19e3ef9d09b69bb8055ff49
GitHub-Last-Rev: 0fa5542ea3
GitHub-Pull-Request: golang/go#46276
Reviewed-on: https://go-review.googlesource.com/c/go/+/321190
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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2021-05-20 17:06:05 +00:00
Joel Sing f8be906d74 test: re-enable test on riscv64 now that it supports external linking
Update #36739

Change-Id: I14ab2cd0e29966b9a2f992e8c3bcb415203e63e6
Reviewed-on: https://go-review.googlesource.com/c/go/+/321449
Trust: Joel Sing <joel@sing.id.au>
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2021-05-20 16:41:09 +00:00
Cherry Mui def5360541 doc/go1.17: add release notes for OpenBSD ports
Updates #44513.

Change-Id: I8758768f6231fd7fcbaa7109eb49ee56cd60d93d
Reviewed-on: https://go-review.googlesource.com/c/go/+/321310
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2021-05-20 16:09:44 +00:00
Cherry Mui ef1f52cc38 doc/go1.17: add release note for windows/arm64 port
Updates #44513, #42604.

Change-Id: I8200e8087c219a0042ab2a6770a7275c3b17942a
Reviewed-on: https://go-review.googlesource.com/c/go/+/321309
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2021-05-20 16:09:29 +00:00
Vishal Dalwadi bb7495a46d doc/go1.17: document new math constants
Documents the newly introduced:
* MaxInt
* MinInt
* MaxUint

Updates #28538.
For #44513.
Fixes #46012.

Change-Id: Iab6bbcf8f76ebe105b973d5fd39b86b8cd078348
Reviewed-on: https://go-review.googlesource.com/c/go/+/317911
Trust: Heschi Kreinick <heschi@google.com>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
2021-05-20 16:08:35 +00:00
Cherry Mui a5cd89b8c3 [dev.typeparams] runtime: use internal/abi.FuncPCABI0 and cgo_unsafe_args for Solaris syscall wrappers
Similar to CL 313230, for Solaris (and Illumos). Also mark
functions that take address of one arg and pass to asmcgocall
cgo_unsafe_args, as it effectively takes address of all args.

Change-Id: I4281dd774719fb21ecba82e5ed94a609378a3df5
Reviewed-on: https://go-review.googlesource.com/c/go/+/321314
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2021-05-20 16:07:12 +00:00
Michael Anthony Knyszek f07e4dae3c syscall: document NewCallback and NewCallbackCDecl limitations
Currently NewCallback and NewCallbackCDecl may only be called a limited
number of times in a single Go process, but this property of the API is
not documented. This change fixes that, but does not document the
precise limit to avoid making that limit part of the API, leaving us
open to increasing or decreasing the limit in the future as needed.

Although the API avoids documenting a limit, it does guarantee a minimum
callback count so users can rely on at least some amount of callbacks
working.

Updates #46184.

Change-Id: I5129bf5fe301efff73ac112ba1f207ab32058833
Reviewed-on: https://go-review.googlesource.com/c/go/+/321133
Trust: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2021-05-20 13:19:43 +00:00
Dmitri Shuralyov a8d85918b6 misc/cgo/testplugin: skip TestIssue25756pie on darwin/arm64 builder
This test is known to be broken on the darwin/arm64 builder.
Skip it while it's being investigated so it doesn't mask other failures.

For #46239.
Updates #43228.

Change-Id: I8fe57a0636bba84c3100337146dcb96cc264e524
Reviewed-on: https://go-review.googlesource.com/c/go/+/321349
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2021-05-20 01:22:28 +00:00
Robert Griesemer 6bdfff112f [dev.typeparams] cmd/compile/internal/types2: use correct type parameter list in missingMethod
For #46275

Change-Id: Iaed9d8ba034ad793e5c57f2be174f01a535fee95
Reviewed-on: https://go-review.googlesource.com/c/go/+/321232
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2021-05-19 23:43:30 +00:00
Matthew Dempsky eff66248ea [dev.typeparams] cmd/compile/internal/types2: implement package height
This CL extends types2 with package height information, styled after
the way it works already in cmd/compile:

- A new NewPackageHeight entry point for constructing packages with
  explicit height information, and a corresponding Height accessor
  method.

- The types2 importer is updated to provide package height for
  imported packages.

- The types2 type checker sets height based on imported packages.

- Adds an assertion to irgen to verify that types1 and types2
  calculated the same height for the source package.

- Func.less's ordering incorporates package height to match
  types.Sym.less and is generalized to object.less.

- sortTypes (used for sorting embedded types) now sorts defined types
  using object.less as well.

Change-Id: Id4dbbb627aef405cc7438d611cbdd5a5bd97fc96
Reviewed-on: https://go-review.googlesource.com/c/go/+/321231
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2021-05-19 21:53:04 +00:00
Cherry Mui 3f6f12972b [dev.typeparams] runtime: use internal/abi.FuncPCABI0 for sigtramp PC on DragonflyBSD
Same as CL 313230, for DragonflyBSD. sigtramp is the only one we need.

Change-Id: Ic11d0aedc7422512b43b2e4505e8f95056f915bd
Reviewed-on: https://go-review.googlesource.com/c/go/+/321312
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-05-19 21:39:18 +00:00
Keith Randall b69347d24a [dev.typeparams] cmd/compile: simplify tparam's type
We just need the type of the param, no need for a full Field.

Change-Id: I851ff2628e1323d971e58d0cabbdfd93c63e1d3c
Reviewed-on: https://go-review.googlesource.com/c/go/+/321229
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
2021-05-19 17:34:24 +00:00
Keith Randall 701bd60646 [dev.typeparams] cmd/compile: simplify targ's type
Make the base type of targ a *types.Type instead of an ir.Node
containing a type.

Also move makeInstName to typecheck, so it can later be used by
reflectdata for making wrappers.

Change-Id: If148beaa972e5112ead2771d6e32d73f16ca30c1
Reviewed-on: https://go-review.googlesource.com/c/go/+/321209
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
2021-05-19 17:33:56 +00:00
Dmitri Shuralyov 6c1c055d1e cmd/internal/moddeps: use filepath.SkipDir only on directories
If a filepath.WalkFunc returns filepath.SkipDir when invoked on a
non-directory file, it skips the remaining files in the containing
directory.¹

CL 276272 accidentally added a code path that triggers this behavior
whenever filepath.Walk reaches a non-directory file that begins with
a dot, such as .gitattributes or .DS_Store, causing findGorootModules
to return early without finding any modules in GOROOT. Tests that use
it ceased to provide test coverage that the tree is tidy.

Add an explicit check for info.IsDir in the 5 places that intend to
use filepath.SkipDir to skip traversing that directory. Even paths
like GOROOT/bin and GOROOT/pkg which are unlikely to be anything but
a directory are worth checking, since the goal of moddeps is to take
a possibly problematic GOROOT tree as input and detect problems.

While the goal of findGorootModules is to find all modules in GOROOT
programmatically (in case new modules are added or modified), there
are 4 modules now that are quite likely to exist, so check for their
presence to avoid similar regressions. (It's not hard to update this
test if a well-known GOROOT module is removed or otherwise modified;
but if it becomes hard we can simplify it to check for a reasonable
number of modules instead.)

Also fix the minor skew that has crept in since the test got disabled.

¹ This wasn't necessarily an intentional design decision, but it was
  found only when Go 1.4 was already out. See CL 11690 for details.

Fixes #46254.

Change-Id: Id55ed926f8c0094b1af923070de72bacca05996f
Reviewed-on: https://go-review.googlesource.com/c/go/+/320991
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2021-05-19 15:20:08 +00:00
Michael Pratt 658b5e66ec net: return nil UDPAddr from ReadFromUDP
In cases where the socket operation has no underlying address,
golang.org/cl/291509 unintentionally changed ReadFromUDP from return a
nil *UDPAddr to a non-nil (but zero value) *UDPAddr.

This may break callers that assume "no address" is always addr == nil,
so change it back to remain nil.

Fixes #46238

Change-Id: I8531e8fa16b853ed7560088eabda0b9e3e53f5be
Reviewed-on: https://go-review.googlesource.com/c/go/+/320909
Trust: Michael Pratt <mpratt@google.com>
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2021-05-19 13:04:45 +00:00
Matthew Dempsky c2966ae272 [dev.typeparams] cmd/compile/internal/ir: more position details in dump
When dumping node positions, include column position and the full
inlining tree. These details are helpful for diagnosing "toolstash
-cmp" failures due to subtly changing positions.

Change-Id: I953292d6c01899fd98e2f315bafaa123c4d98ffd
Reviewed-on: https://go-review.googlesource.com/c/go/+/321089
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
2021-05-19 06:33:22 +00:00
Matthew Dempsky fb79f6955e [dev.typeparams] cmd/compile/internal/importer: implement position reading
This CL finishes importReader.pos's stub implementation to actually
return syntax.Pos. New PosBase handling is analogous to
typecheck/iimport.go, except for using syntax.PosBase instead of
src.PosBase.

Change-Id: I7629f9f5e69a38ffc2eec772504d6fb2169e1f12
Reviewed-on: https://go-review.googlesource.com/c/go/+/320614
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
2021-05-19 06:29:50 +00:00
Matthew Dempsky c92ae885d9 [dev.typeparams] cmd/compile/internal/types2: better recv Var for method expressions
When synthesizing the Signature to represent a method expression, keep
as much of the original parameter as possible, substituting only the
receiver type.

Fixes #46209.

Change-Id: Ic4531820ae7d203bb0ba25a985f72d219b4aa25f
Reviewed-on: https://go-review.googlesource.com/c/go/+/320489
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2021-05-19 06:29:40 +00:00
Matthew Dempsky 90b6e72605 [dev.typeparams] cmd/compile/internal/types2: tweak anonymous parameter position
When declaring anonymous parameters, use the syntax.Field's Pos
directly rather than its Type field's Pos. When the type expression is
a qualified identifier (i.e., SelectorExpr), its Pos returns the
position of the dot, whereas we typically declare the anonymous
parameter at the starting position of the type. (We could equivalently
use syntax.StartPos(field.Type), but we already have this as
field.Pos().)

Change-Id: If6ac9635b6e9c2b75a1989d5893a78e0b21cba88
Reviewed-on: https://go-review.googlesource.com/c/go/+/320611
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2021-05-19 06:26:57 +00:00
Matthew Dempsky fc9e64cc98 [dev.typeparams] cmd/compile/internal/types2: fix types2 panic
When reporting a "cannot import package as init" error, we can't rely
on s.LocalPkgName being non-nil, as the original package's name may
already be nil.

Change-Id: Idec006780f12ee4398501d05a5b2ed13157f88ea
Reviewed-on: https://go-review.googlesource.com/c/go/+/320490
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2021-05-19 06:26:44 +00:00