1
0
mirror of https://github.com/golang/go synced 2024-11-24 09:50:17 -07:00
Commit Graph

50275 Commits

Author SHA1 Message Date
Bryan C. Mills
d0751b1ad8 cmd/go: test with SIGTERM in test_fuzz_non_crash_signal
The test currently uses only SIGKILL (which cannot be trapped by the
worker process) and SIGILL (which is handled by the Go runtime, and
does pretty unambiguously indicate a crash). It is missing a third
(and perhaps more likely) case: a signal like SIGTERM that is handled
by the Go runtime and causes the test to terminate, but nonetheless
does not indicate a crash.

Change-Id: I0595a0917e977e8eb2c24ae8b706d734ce3b2f4f
Reviewed-on: https://go-review.googlesource.com/c/go/+/359482
Trust: Bryan C. Mills <bcmills@google.com>
Trust: Katie Hockman <katie@golang.org>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
2021-10-28 20:50:34 +00:00
Bryan C. Mills
b9540246ba cmd/go: disallow the -fuzz flag for tests outside the main module
Normally, when fuzzing identifies a failure it saves the failing input
to the package's testdata directory. However, the testdata directory
for packages outside the main module is normally not writable — and
when it is, writing to a testdata directory inside the module cache
would corrupt the checksum for that module (and permanently alter the
behavior of that version of the module globally).

In the future we could consider a flag to allow failures to be saved
to an alternate location, or perhaps in the build cache; or, we could
suppress writes entirely and rely on the user to identify and copy the
failing input from the test log. However, it's a bit late in the cycle
for that big a design decision right now. For Go 1.18, we will just
enforce that the package to be fuzzed resides in the main module,
which is typically a writable VCS checkout.

Fixes #48495

Change-Id: I8d3d56372394b1aaa94fa920399c659363fa17fa
Reviewed-on: https://go-review.googlesource.com/c/go/+/359414
Trust: Bryan C. Mills <bcmills@google.com>
Trust: Katie Hockman <katie@golang.org>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
2021-10-28 20:43:39 +00:00
Bryan C. Mills
e741e2fe0e cmd/go: consolidate fuzz-support checks
We had been repeating conditions for specific platforms and
architectures to gate fuzzing tests, but the more of those tests we
add the more we will have to update if the set of supported platforms
and archictures expands over time.

We also ought to provide a friendlier error message when
'go test -fuzz' is used on non-supported platforms.

This change adds predicates in cmd/internal/sys, which already
contains similar predicates for related functionality (such as the
race detector), and uses those predicates in 'go test' and TestScript.

For #48495

Change-Id: If24c3997aeb4d201258e21e5b6cf4f7c08fbadd7
Reviewed-on: https://go-review.googlesource.com/c/go/+/359481
Trust: Bryan C. Mills <bcmills@google.com>
Trust: Katie Hockman <katie@golang.org>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
2021-10-28 20:43:02 +00:00
Bryan C. Mills
834e36ec77 net/http: restore generated // +build comment
The upstream cmd/bundle tool does not yet omit it,
and the longtest builders test that the generated
file is not modified.

For #41184.

Change-Id: Ib68f532139ed1436cbaf3a756f300fe60f520cab
Reviewed-on: https://go-review.googlesource.com/c/go/+/359484
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-10-28 20:39:36 +00:00
Cherry Mui
5e217284dc cmd/internal/goobj: bump version number
There have a few updates to the Go object file in this cycle (e.g.
FuncInfo format change, some changes in constant values), and it
is not compatible with the old tools. Bump up the version number.

Change-Id: Id176979b139c76ded2c50f2678eb313934326d6f
Reviewed-on: https://go-review.googlesource.com/c/go/+/359483
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-10-28 20:27:44 +00:00
Russ Cox
f229e7031a all: go fix -fix=buildtag std cmd (except for bootstrap deps, vendor)
When these packages are released as part of Go 1.18,
Go 1.16 will no longer be supported, so we can remove
the +build tags in these files.

Ran go fix -fix=buildtag std cmd and then reverted the bootstrapDirs
as defined in src/cmd/dist/buildtool.go, which need to continue
to build with Go 1.4 for now.

Also reverted src/vendor and src/cmd/vendor, which will need
to be updated in their own repos first.

Manual changes in runtime/pprof/mprof_test.go to adjust line numbers.

For #41184.

Change-Id: Ic0f93f7091295b6abc76ed5cd6e6746e1280861e
Reviewed-on: https://go-review.googlesource.com/c/go/+/344955
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2021-10-28 18:17:57 +00:00
Russ Cox
ed475fe53b cmd/go: update for //go:build lines
cmd/go has its own //go:build evaluator, which is needed for
patterns like 'all'. The code is a modified copy of some unexported
routines from the go/build package. Update it by copying those
again and re-modifying them. The modifications are primarily the new
func eval and also ignoring errors.

This CL will need to be backported to Go 1.17, or else Go 1.17
will break when faced with certain //go:build-only repos during
'go list all' or 'go mod tidy'.

For #41184.
Fixes #49198.

Change-Id: Ie0fe3caa8d49004935ecd76d7977f767fe50e317
Reviewed-on: https://go-review.googlesource.com/c/go/+/359355
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2021-10-28 18:10:59 +00:00
Michael Pratt
2bc8ed8e9c runtime: normalize sigprof traceback flags
Each gentraceback call uses a different set of flags. Combine these into
a common variable, only adjusted as necessary.

The effective changes here are:

* cgo traceback now has _TraceJumpStack. This is a no-op since it
  already passes curg.
* libcall traceback now has _TraceJumpStack. This is a behavior change
  and will allow following stack transitions if a libcall is performed on
  g0.
* VDSO traceback drops _TraceTrap. vdsoPC is a return address, so
  _TraceTrap was not necessary.

Change-Id: I351b3cb8dc77df7466795d5fbf2bd8f30bba2d37
Reviewed-on: https://go-review.googlesource.com/c/go/+/358900
Trust: Michael Pratt <mpratt@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2021-10-28 18:10:50 +00:00
Neil Alexander
266626211e net/http: guarantee that the Transport dial functions are respected in js/wasm
The net/http package has a documented contract that if DialContext, DialDLSContext, Dial or DialTLS are specified in an instance of Transport, that they will be used to set up the connection. If they are not specified, then a reasonable fallback is made (e.g. using the net package).

This is ordinarily true, except for when compiling for the js/wasm target, where the browser's Fetch API is preferred in all cases (except for when it is undefined/unavailable) and therefore the dial functions are all ignored. As a result, the http.Transport implementation under js/wasm doesn't meet that contract.

This PR updates the RoundTrip behaviour of http.Transport so that if DialContext, DialTLSContext, Dial or DialTLS are specified, they are used as expected. The Fetch API will be used as a fallback if they are not specified.

Fixes #27495

Change-Id: I88c6eb6ffdd077827b421d606f3e60ebdafd538f
GitHub-Last-Rev: 948a0ed97e
GitHub-Pull-Request: golang/go#46923
Reviewed-on: https://go-review.googlesource.com/c/go/+/330852
Reviewed-by: Damien Neil <dneil@google.com>
Trust: Damien Neil <dneil@google.com>
Trust: Carlos Amedee <carlos@golang.org>
Run-TryBot: Damien Neil <dneil@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-10-28 17:57:57 +00:00
Russ Cox
3124968848 cmd/fix: add buildtag fix
Now that Go 1.17 is out and Go 1.15 is unsupported,
removing // +build lines can be done safely: in the worst case,
if code is compiled using Go 1.16 the toolchain will detect
the presence of a //go:build without // +build and fail the build.
(It will not silently choose the wrong files.)

Note that +build lines will continue to work in Go sources forever.
This just provides a mechanism for users who are done with
Go 1.16 to remove them easily, by running "go fix".

Also update for new generics AST.

For #41184.
Fixes #48978.

Change-Id: I11a432c319e5abd05ad68dda9ccd7a7fdcc8bbb8
Reviewed-on: https://go-review.googlesource.com/c/go/+/240611
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2021-10-28 17:52:59 +00:00
Michael Pratt
6bd0e7fa8a runtime: fix backward error message
This was added in CL 339990.

Change-Id: I4b0f97bf1a3926e37a42f77e149dcab3b7b75a63
Reviewed-on: https://go-review.googlesource.com/c/go/+/359255
Trust: Michael Pratt <mpratt@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2021-10-28 16:54:58 +00:00
Michael Pratt
5fce1d9613 runtime: disable TestSegv panic check on darwin, illumos, solaris
CL 339990 made this test more strict, exposing pre-existing issues on
these OSes. Skip for now until they can be resolved.

Updates #49182

Change-Id: I3ac400dcd21b801bf4ab4eeb630e23b5c66ba563
Reviewed-on: https://go-review.googlesource.com/c/go/+/359254
Trust: Michael Pratt <mpratt@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-10-28 16:54:29 +00:00
Robert Findley
6f0185bf38 go/types: factor out slice elem computation for copy built-in
This is a port of CL 357413 to go/types. Some test constraints are also
updated to remove 'interface', to coincide with the corresponding test
data file in types2.

Change-Id: I5248190501c2e4381eb7625f8d4fb269301d6e16
Reviewed-on: https://go-review.googlesource.com/c/go/+/359138
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2021-10-28 16:08:36 +00:00
Roland Shoemaker
61536ec030 debug/macho: fail on invalid dynamic symbol table command
Fail out when loading a file that contains a dynamic symbol table
command that indicates a larger number of symbols than exist in the
loaded symbol table.

Thanks to Burak Çarıkçı - Yunus Yıldırım (CT-Zer0 Crypttech) for
reporting this issue.

Fixes #48990
Fixes CVE-2021-41771

Change-Id: Ic3d6e6529241afcc959544b326b21b663262bad5
Reviewed-on: https://go-review.googlesource.com/c/go/+/355990
Reviewed-by: Julie Qiu <julie@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Run-TryBot: Roland Shoemaker <roland@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Katie Hockman <katie@golang.org>
2021-10-28 15:55:26 +00:00
Robert Findley
278b9b3a4c go/types: implement generic conversions
This is a port of 4 CLs from types2: CL 356010, CL 357333, CL 357410,
and CL 357249. These 4 CLs are all related to implementing conversions,
and porting them together saved time (particularly because go/types was
already threading a *reason argument in some places).

Change-Id: Ic89b608d7096b61bfb9f7d71fdae2cc50b0ed70e
Reviewed-on: https://go-review.googlesource.com/c/go/+/359137
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2021-10-28 15:35:25 +00:00
Robert Findley
4f1c9aace0 go/types: add debugging support for delayed actions
This is a port of CL 355871 to go/types.

Change-Id: I2dbc3c625c16b545a271a19606ef34ce04a4a6df
Reviewed-on: https://go-review.googlesource.com/c/go/+/359136
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2021-10-28 15:34:49 +00:00
Robert Findley
925ea2dfc4 go/types, types2, go/ast, go/parser: remove support for type lists
This is a rough port of CL 354131 to go/* libraries, though in practice
I just tried to reconcile any places where the phrase "type list"
occurred in the source. This resulted in adjusting quite a bit more code
than initially expected, including a few lingering cases in the
compiler.

Change-Id: Ie62a9e1aeb831b73931bc4c78bbb6ccb24f53fb0
Reviewed-on: https://go-review.googlesource.com/c/go/+/359135
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2021-10-28 15:34:22 +00:00
Robert Findley
a5a423e0e8 go/parser: fix parsing of array or slice constraint types
Now that we allow eliding 'interface' from constraint types, we need to
be a bit more careful about not consuming a '[' when parsing the next
expression after "type T [". We want to check if the next expression is
an identifier not followed by ']', in which case we're in a generic
type, but need to avoid parsing index or slice expressions. Such
expressions aren't valid array lengths because these expressions are
never constant, so when encountering a following '[' we can instead
assume that this is a type parameter field with array or slice type
constraint.

Test cases are added for the related issues #49174 and #49175, along
with a flag to enable tracing error tests.

For #49174
For #49175

Change-Id: I0476ef20c4c134ac537118272f20caaf123ee70e
Reviewed-on: https://go-review.googlesource.com/c/go/+/359134
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2021-10-28 15:32:59 +00:00
Cuong Manh Le
5c98bcb7d4 runtime: fix noopt builder
CL 352057 added track argument stack slot liveness, and updated
TestTracebackArgs for argument liveness. But when optimization is
disabled, all arguments are considered lived. The abiSel does not
consider this case and return wrong expected result.

To fix this, checking if we are running in a noopt builder and return
the correct expected result. Also, skipping TestTracebackArgs in quick
mode, since when quick mode run the test without optimization disable.

Updates #45728

Change-Id: I3737a1b1a5fa0c711fbb3218205f2f6e34f36260
Reviewed-on: https://go-review.googlesource.com/c/go/+/359196
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-10-28 15:08:31 +00:00
nimelehin
a3bb28e5ff cmd/compile: allow inlining of ORANGE
Updates #14768

Change-Id: I33831f616eae5eeb099033e2b9cf90fa70d6ca86
Reviewed-on: https://go-review.googlesource.com/c/go/+/356869
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
Trust: Dan Scales <danscales@google.com>
Trust: Alberto Donizetti <alb.donizetti@gmail.com>
2021-10-28 14:25:03 +00:00
Brad Fitzpatrick
2ff1074f5a reflect: undeprecate Ptr, PtrTo
Fixes #48665

Change-Id: Id838f7508f6e93c4546a2aeefc2db194e647db77
Reviewed-on: https://go-review.googlesource.com/c/go/+/359175
Trust: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2021-10-28 03:44:12 +00:00
Russ Cox
b8f928b052 go/build: update for //go:build lines
Look for //go:build ignore, not // +build ignore, in deps_test.go.

For #41184.

Change-Id: Iba8617230aa620223e2bc170f18d0c54557318c4
Reviewed-on: https://go-review.googlesource.com/c/go/+/359315
Trust: Russ Cox <rsc@golang.org>
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2021-10-28 03:35:34 +00:00
Russ Cox
5a3a9d87ed cmd/dist: implement //go:build parsing
The bootstrap directories are built with the Go 1.4 go command,
and they will retain the // +build lines until we bump the bootstrap
toolchain to Go 1.17 or later.

cmd/dist builds cmd/go and all its dependencies, using the
assembler, compiler, and linker that were built using Go 1.4.
We don't want to have to keep // +build lines in cmd/go and
all its dependencies, so this CL changes cmd/dist to understand
the //go:build lines.

cmd/dist is a standalone Go program that must itself build with
very old Go releases, so we cannot assume go/build/constraint
is available. Instead, implement a trivial parser/evaluator.

For #41184.

Change-Id: I84e259dec3bd3daec3f82024eb3500120f53096d
Reviewed-on: https://go-review.googlesource.com/c/go/+/359314
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2021-10-28 03:35:04 +00:00
Cuong Manh Le
056dfe6ff3 reflect: undeprecate Value.{Pointer,UnsafeAddr}
Fixes #49187

Change-Id: I4d8c87af8a709f1b909dd4fae3734d422eb36900
Reviewed-on: https://go-review.googlesource.com/c/go/+/359194
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2021-10-28 02:35:22 +00:00
Leonard Wang
b2fe2ebab6 cmd/compile: resolve the TODO of processPragmas
Change-Id: Id723ecc2480aea2d8acb4d3e05db4a6c8eef9cc8
Reviewed-on: https://go-review.googlesource.com/c/go/+/333109
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Cherry Mui <cherryyz@google.com>
2021-10-28 01:15:26 +00:00
Robert Griesemer
12dc48fd54 cmd/compile/internal/types2: export Structure function
For #48538.

Change-Id: I258b0c8af5801692ad238e47397dde0b4e3c44c1
Reviewed-on: https://go-review.googlesource.com/c/go/+/359275
Trust: Robert Griesemer <gri@golang.org>
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Dan Scales <danscales@google.com>
2021-10-28 01:03:38 +00:00
Robert Griesemer
a91d0b649c cmd/compile/internal/types2: disallow lone type parameter on RHS of type declaration
We may revisit this decision in a future release. By disallowing this
for Go 1.18 we are ensuring that we don't lock in the generics design
in a place that may need to change later. (Type declarations are the
primary construct where it crucially matters what the underlying type
of a type parameter is.)

Comment out all tests that rely on this feature; add comments referring
to issue so we can find all places easily should we change our minds.

Fixes #45639.

Change-Id: I730510e4da66d3716d455a9071c7778a1e4a1152
Reviewed-on: https://go-review.googlesource.com/c/go/+/359177
Trust: Robert Griesemer <gri@golang.org>
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Dan Scales <danscales@google.com>
2021-10-28 00:11:24 +00:00
Ian Lance Taylor
79ff663754 constraints: remove Slice/Map/Chan
Now that we permit arbitrary types as constraints, we no longer need them.

For #48424

Change-Id: I15fef26a563988074650cb0801895b002c44148a
Reviewed-on: https://go-review.googlesource.com/c/go/+/359258
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2021-10-27 22:17:35 +00:00
Mark Pulford
749f6e9eb6 doc/go1.18: document Fossil/Bazaar and commit time build tag support
Change-Id: I032791a3cda1916099b0fd2955dcca4e69763660
Reviewed-on: https://go-review.googlesource.com/c/go/+/357958
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2021-10-27 21:37:54 +00:00
Mark Pulford
063ff7f7a0 cmd/go: stamp Bazaar VCS status into binaries
For #37475

Change-Id: I728b7aeee5c38ec337e9a5b073050c3b0afc720d
Reviewed-on: https://go-review.googlesource.com/c/go/+/357956
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-10-27 21:37:39 +00:00
zhouguangyuan
a3c4ac0fbc reflect: skip duplicate check in StructOf when the name of a field is "_"
Fixes #49110

Change-Id: I32c2cb26cca067a4a676ce4bbc3e51f1e0cdb259
Reviewed-on: https://go-review.googlesource.com/c/go/+/357959
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Dan Kortschak <dan@kortschak.io>
Reviewed-by: Sebastien Binet <s@sbinet.org>
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2021-10-27 21:35:48 +00:00
Mark Pulford
de1abf76fb cmd/go: stamp Fossil VCS status into binaries
For #37475

Change-Id: I09fa1344051088ce37727176d9ec6b38891d1a9f
Reviewed-on: https://go-review.googlesource.com/c/go/+/357955
Trust: Ian Lance Taylor <iant@golang.org>
Trust: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-10-27 21:34:46 +00:00
Mark Pulford
4fefd439a4 cmd/go: fix recognition of Fossil checkout directories
Use ".fslckout" or "_FOSSIL_" files to correctly identify the root of
Fossil checkout directories.

Previously, Go has assumed VCS checkouts are indicated by a dot-file
named after the VCS command (eg, .git, .hg, .fossil). This is not
normally true for Fossil, but has worked so far since Go downloads
repositories into a ".fossil" file before opening (checking out).

Using the incorrect path prevents Go identifying Fossil checkouts and
correctly tagging with -buildvcs (to be added in a follow up CL).

Change-Id: I3c030a0b600dfe7f4b3fcf1551b1d7cb84629b81
Reviewed-on: https://go-review.googlesource.com/c/go/+/357954
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-10-27 21:34:20 +00:00
Cuong Manh Le
51be206114 runtime/testdata/testprogcgo: fix TestCgoPanicCallback
A cgo file with "//export" declarations is not permitted to have function
definitions in the cgo comments.

Fixes #49188

Change-Id: I5c24b62b259871473ee984cea96a0edd7d42d23a
Reviewed-on: https://go-review.googlesource.com/c/go/+/359195
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2021-10-27 20:29:07 +00:00
Cherry Mui
30a82efcf4 cmd/compile, runtime: track argument stack slot liveness
Currently, for stack traces (e.g. at panic or when runtime.Stack
is called), we print argument values from the stack. With register
ABI, we may never store the argument to stack therefore the
argument value on stack may be meaningless. This causes confusion.

This CL makes the compiler keep trace of which argument stack
slots are meaningful. If it is meaningful, it will be printed in
stack traces as before. If it may not be meaningful, it will be
printed as the stack value with a question mark ("?"). In general,
the value could be meaningful on some code paths but not others
depending on the execution, and the compiler couldn't know
statically, so we still print the stack value, instead of not
printing it at all. Also note that if the argument variable is
updated in the function body the printed value may be stale (like
before register ABI) but still considered meaningful.

Arguments passed on stack are always meaningful therefore always
printed without a question mark. Results are never printed, as
before.

(Due to a bug in the compiler we sometimes don't spill args into
their dedicated spill slots (as we should), causing it having
fewer meaningful values than it should be.)

This increases binary sizes a bit:
            old       new
hello      1129760   1142080  +1.09%
cmd/go    13932320  14088016  +1.12%
cmd/link   6267696   6329168  +0.98%

Fixes #45728.

Change-Id: I308a0402e5c5ab94ca0953f8bd85a56acd28f58c
Reviewed-on: https://go-review.googlesource.com/c/go/+/352057
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2021-10-27 20:27:02 +00:00
Robert Griesemer
bbc059572d cmd/compile/internal/types2: implement singleType and structure (type)
Rename structuralType to singleType throughout. This reflects
more closely what the function does: if a type set consists of
exactly one type term, singleType returns the corresponding type.

Rename singleUnder to structure. The structure function returns
the "type structure" of a type, either its underlying type for
a non-type parameter, or the single underlying type (if it exists)
for a type parameter.

Change constraint type inference to use the structure type for
inference, unless the structure type is the underlying type of
a single defined type, in which case it uses the latter. This
preserves existing behavior while making constraint type inference
slightly more flexible.

Change-Id: I38ee89ffdabd12bfeaa0be2ad6af8fb373c11fc9
Reviewed-on: https://go-review.googlesource.com/c/go/+/359015
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2021-10-27 20:25:06 +00:00
Robert Griesemer
6a7eb56cd1 cmd/compile/internal/types2: remove unused position computation (cleanup)
The position computation was needed for type list support.
With that gone, we don't need this code anymore.

Change-Id: I3f36b3d108a1fae9947fd259d4892e0287cb78ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/358701
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2021-10-27 20:25:01 +00:00
Robert Griesemer
5c4d7c50c7 cmd/compile/internal/types2: rename isNamed predicate to hasName
isNamed(t) is easily confused with asNamed(t) != nil (e.g., we
have isPointer(t) that is defined as asPointer(t) != nil).

This rename also helped clarifying a couple of places in the
assignability rules where it makes sense to simply look for
types that have names.

Change-Id: Ie995908613a26883ffe0562343d297a1e981e9ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/358621
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2021-10-27 20:24:56 +00:00
Robert Griesemer
a155a307fb cmd/compile/internal/types2: clean up asT converters (step 2 of 2)
This CL renames the toT converters back to their asT names.

Change-Id: If4bda5a78525f9722f044f5544f400fa8bb6f437
Reviewed-on: https://go-review.googlesource.com/c/go/+/358774
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2021-10-27 20:24:48 +00:00
Robert Griesemer
d611f09200 cmd/compile/internal/types2: clean up asT converters (step 1 of 2)
This CL changes the convenience converters asT to use under instead
of optype. To make sure the effect is well understood, in a first
step, all asT functions are renamed to toT so that we can see which
call sites are affected. In almost all places, the change is what we
want. In some places we may get more conservative behavior (which is
easy to relax if need be). In some places (function calls through a
type parameter, append built-in) we now use singleUnder instead, for
a more general behavior, matching other primary expressions or built-
ins.

This change removes the last use of optype and thus also theTop and
top, all of which have been deleted from the code.

The next CL renames the toT converters back to their asT form.

Change-Id: I35d1ad866ce46de175a055b36ef577d99bb9de22
Reviewed-on: https://go-review.googlesource.com/c/go/+/358597
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2021-10-27 20:24:42 +00:00
Robert Griesemer
56dcf97656 cmd/compile/internal/types2: generalize assignability to generic types
Similar to conversions, handle ordinary cases first, followed by
type-by-type assignability tests in case of type parameters with
specific types in their type sets.

Add a new class of type checker tests, in testdata/spec, which
I hope we can populate over time with tests following the spec
organization. Moved the conversions.go2 tests in the same dir.

Change-Id: Iac253ae375c08022bdc39e92e3951ec3f509e432
Reviewed-on: https://go-review.googlesource.com/c/go/+/357917
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2021-10-27 20:24:34 +00:00
Robert Griesemer
3f1b0ce6bb cmd/compile/internal/types2: clarify is/underIs semantics and implementation
The behavior of is/underIs was murky with the presence of a top type term
(corresponding to a type set that is not constrained by any types, yet the
function argument f of is/underIs was called with that term).

Change is/underIs to call f explicitly for existing specific type terms,
otherwise return the result of f(nil). Review all uses of is/underIs and
variants.

This makes the conversion code slightly more complicated because we need
to explicitly exclude type parameters without specific types; but the
code is clearer now.

Change-Id: I6115cb46f7f2a8d0f54799aafff9a67c4cca5e30
Reviewed-on: https://go-review.googlesource.com/c/go/+/358594
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2021-10-27 20:24:28 +00:00
Bryan C. Mills
68bd5121ee cmd/go: remove support for -buildmode=shared
It never worked in module mode (or with a read-only GOROOT).
A proposal to drop it was filed (and approved) in
https://golang.org/issue/47788.

Fixes #47788

Change-Id: I0c12f38eb0c5dfe9384fbdb49ed202301fa4273d
Reviewed-on: https://go-review.googlesource.com/c/go/+/359096
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2021-10-27 20:03:17 +00:00
Russ Cox
ffd2284db0 cmd/go: fix testdata/script/mod_vendor_goversion for new compiler output
The message is now a single line, but I couldn't get '\n?' to work.

(This test does not run in short mode.)

Change-Id: I3d7033f78ac2bf41db7fdfe96cbb988c4533d834
Reviewed-on: https://go-review.googlesource.com/c/go/+/359095
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2021-10-27 19:34:49 +00:00
Katie Hockman
514ebaec35 internal/fuzz: don't deflake coverage found while fuzzing
Previously, the worker would attempt to deflake
an input that was reported to have caused new
coverage. The chances of a flake causing new
coverage seem pretty low to me, and even if it
was a flake that caused it, adding that input to
the cache doesn't seem like a bad thing. The
input is already going to be deflaked during
minimization anyway. If by some off-chance the
code is causing a lot of flaky coverage
increases, and the user doesn't want minimization
to occur, then setting -fuzzminimizetime=1x will
deflake in the way they want without minimizing.
This can be documented as needed.

This fixes a bug where the mem.header().count
could have been one too large if an unrecoverable
crash occured while deflaking an input that
caused code coverage.

Fixes #49047

Change-Id: Ibdf893d7a89a46dd700702afb09e35623615390e
Reviewed-on: https://go-review.googlesource.com/c/go/+/358094
Trust: Katie Hockman <katie@golang.org>
Run-TryBot: Katie Hockman <katie@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Julie Qiu <julie@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2021-10-27 19:18:20 +00:00
Paul E. Murphy
259735f97a cmd/compile: enable branchelim pass on ppc64
and fix/cleanup lowering of the SSA operator created by the pass.

Change-Id: I7e6153194fd16013e3b24da8aa40683adafa3d15
Reviewed-on: https://go-review.googlesource.com/c/go/+/344573
Run-TryBot: Paul Murphy <murp@ibm.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Josh Bleecher Snyder <josharian@gmail.com>
2021-10-27 18:24:50 +00:00
Robert Griesemer
bb49eb3e6a cmd/compile/internal/syntax: fix constraint literal parsing for generic functions
Fixes #49174.

Change-Id: I943c370f7abd5f50a541e682f130b3526c3b5bdb
Reviewed-on: https://go-review.googlesource.com/c/go/+/359014
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2021-10-27 18:08:49 +00:00
Robert Findley
c0ac39c70e go/types: remove a stale comment
Clean up a comment that was deleted in types2 in CL 353135.

Change-Id: If339efa133e2a3d1eaa3b1e69458471677018261
Reviewed-on: https://go-review.googlesource.com/c/go/+/358517
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2021-10-27 16:59:43 +00:00
Russ Cox
4f73fd05a9 cmd: move internal/str back to cmd/go
cmd/go is not subject to all the same restrictions as most of cmd.
In particular it need not be buildable with the bootstrap toolchain.
So it is better to keep as little code shared between cmd/go and
cmd/compile, cmd/link, cmd/cgo as possible.

cmd/internal/str started as cmd/go/internal/str but was moved
to cmd/internal in order to make use of the quoted string code.
Move that code to cmd/internal/quoted and then move the rest of
cmd/internal/str back to cmd/go/internal/str.

Change-Id: I3a98f754d545cc3af7e9a32c2b77a5a035ea7b9a
Reviewed-on: https://go-review.googlesource.com/c/go/+/355010
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2021-10-27 16:39:27 +00:00
Cholerae Hu
cfb532158f cmd/go: add darwin/arm64 in the list of supported systems in help message
Fixes #49173.

Change-Id: I71270b4ff7e9ede3cdfa5946b73142a731752adf
Reviewed-on: https://go-review.googlesource.com/c/go/+/358901
Reviewed-by: Alberto Donizetti <alb.donizetti@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Alberto Donizetti <alb.donizetti@gmail.com>
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-10-27 13:12:49 +00:00