We want to keep the Nname references for external function references in
tstruct (not remove them, as is currently happening). We only change the
Nname reference (translate it) when it appears in subst.vars[].
New export/import test sliceimp.go which includes some of these external
function references.
Change-Id: Ie3d73bd989a16082f0cebfb566e0a7faeda55e60
Reviewed-on: https://go-review.googlesource.com/c/go/+/321735
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Improvements:
- Fix export/import of the default case of a select statement (was not
dealing with nil Comm case)
- Set properly the name of closure functions in imported generic
functions
Added new test exporting/importing a reasonably large channel package,
chansimp.go.
Change-Id: If2ee12bd749e5df415f48ec4b629a2fa68a79dcb
Reviewed-on: https://go-review.googlesource.com/c/go/+/321734
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At this point all funcPC references are ABIInternal functions.
Replace with the intrinsics.
Change-Id: I3ba7e485c83017408749b53f92877d3727a75e27
Reviewed-on: https://go-review.googlesource.com/c/go/+/321954
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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
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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
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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
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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
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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
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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>
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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>
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
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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
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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
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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
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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
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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
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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
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
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
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Same as CL 313230, for Plan 9.
Change-Id: I0e99c095856c4b21b89abdffa4c0699b24ea9428
Reviewed-on: https://go-review.googlesource.com/c/go/+/321330
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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
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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
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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>
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
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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
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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
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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
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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
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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
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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
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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
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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
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Followup to previous commit that extended test/run.go to run more
tests with -G=3. This CL updates a handful of easy test cases for
types2 compatibility.
Change-Id: I58a6f9ce6f9172d61dc25411536ee489ccb03ae0
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The parser accepted embedded elements but the first term
of an element had to be a ~-term or a type name. This CL
fixes that.
Change-Id: I013b6cdc5963fb228867ca6597f9139db2be7ec5
Reviewed-on: https://go-review.googlesource.com/c/go/+/321109
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Currently the exporter uses types.IsDotAlias(n.Sym()) to recognize
that n is a type alias, but IsDotAlias is actually meant for
recognizing aliases introduced by dot imports. Translated to go/types,
the current logic amounts recognizing type aliases as if by:
var n *types.TypeName
typ, ok := n.Pkg().Scope().Lookup(n.Name()).Type().(*types.Named)
isAlias := !ok || typ.Obj().Pkg() != n.Pkg() || typ.Obj().Name() != n.Name()
But we can instead just check n.Alias() (eqv. n.IsAlias() in
go/types). In addition to being much simpler, this is also actually
correct for recognizing function-scoped type declarations (though we
don't currently support those anyway, nor would they go through this
exact code path).
To avoid possible future misuse of IsDotAlias, this CL also inlines
its trivial definition into its only call site.
Passes toolstash -cmp, also w/ -gcflags=all=-G=3.
Change-Id: I7c6283f4b58d5311aa683f8229bbf62f8bab2ff9
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Same as CL 313230, for OpenBSD.
Change-Id: I56f4a8a368e1a17615a01db4e2b6c53e4ed263bd
Reviewed-on: https://go-review.googlesource.com/c/go/+/320889
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This CL expands the current logic for re-running "errorcheck" tests
with -G=3 to run (almost) all regress tests that way. This exposes a
handful of additional failures, so the excluded-files list is expanded
accordingly. (The next CL addresses several of the easy test cases.)
Change-Id: Ia5ce399f225d83e817a046a3bd1a41b9681be3af
Reviewed-on: https://go-review.googlesource.com/c/go/+/320609
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This CL just adds some additional details to existing Fatalf messages
that make them more useful for identifying what went wrong.
Change-Id: Icba0d943ccfb1b810a1ede0977cc8cf22b2afde5
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Merge List:
+ 2021-05-18 690a8c3fb1 make.bash: fix misuse of continue
+ 2021-05-18 8b0901fd32 doc/go1.17: fix typo "avoding" -> "avoiding"
+ 2021-05-18 5e191f8f48 time: rewrite the documentation for layout strings
+ 2021-05-17 bfe3573d58 go/token: correct the interval notation used in some panic messages
+ 2021-05-17 a2c07a9a1a all: update golang.org/x/net to latest
+ 2021-05-17 b9b2bed893 syscall: some containers may fail syscall.TestSetuidEtc
+ 2021-05-17 b1aff42900 cmd/go: don't print 'go get' deprecation notices in the main module
+ 2021-05-17 bade680867 runtime/cgo: fix crosscall2 on ppc64x
+ 2021-05-15 ce92a2023c cmd/go: error out of 'go mod tidy' if the go version is newer than supported
+ 2021-05-14 02699f810a runtime: mark osyield nosplit on OpenBSD
+ 2021-05-14 3d324f127d net/http: prevent infinite wait during TestMissingStatusNoPanic
+ 2021-05-14 0eb38f2b16 cmd/go/internal/load: override Package.Root in module mode
+ 2021-05-14 a938e52986 cmd/go: fix a portability issue in the cd script command
+ 2021-05-14 d137b74539 cmd/go: fix spacing in help text of -overlay flag
+ 2021-05-14 c925e1546e cmd/internal/obj/arm64: disable AL and NV for some condition operation instructions
+ 2021-05-14 12d383c7c7 debug/macho: fix a typo in macho.go
+ 2021-05-14 3a0453514a all: fix spelling
+ 2021-05-13 b4833f7c06 cmd/link: always mark runtime.unreachableMethod symbol
+ 2021-05-13 92c189f211 cmd/link: resolve ABI alias for runtime.unreachableMethod
+ 2021-05-13 7a7624a3fa cmd/go: permit .tbd files as a linker flag
+ 2021-05-13 cde2d857fe cmd/go: be less strict about go version syntax in dependency go.mod files
+ 2021-05-13 2a61b3c590 regexp: fix repeat of preferred empty match
+ 2021-05-13 fd4631e24f cmd/compile/internal/dwarfgen: fix DWARF param DIE ordering
+ 2021-05-13 a63cded5e4 debug/dwarf: delay array type fixup to handle type cycles
+ 2021-05-13 0fa2302ee5 cmd/vendor: update golang.org/x/sys to latest
+ 2021-05-13 2c76a6f7f8 all: add //go:build lines to assembly files
+ 2021-05-12 6db7480f59 cmd/go/internal/modload: in updateLazyRoots, do not require the main module explicitly
+ 2021-05-12 f93b951f33 cmd/compile/abi-internal.md: fix table format
+ 2021-05-12 3b321a9d12 cmd/compile: add arch-specific inlining for runtime.memmove
+ 2021-05-12 07ff596404 runtime/internal/atomic: add LSE atomics instructions to arm64
+ 2021-05-12 03886707f9 runtime: fix handling of SPWRITE functions in traceback
+ 2021-05-12 e03383a2e2 cmd/link: check mmap error
+ 2021-05-12 af0f8c149e cmd/link: don't cast end address to int32
+ 2021-05-12 485474d204 cmd/go/testdata/script: fix test failing on nocgo builders
+ 2021-05-12 1a0ea1a08b runtime: fix typo in proc.go
+ 2021-05-11 9995c6b50a cmd/go: ignore implicit imports when the -find flag is set
Change-Id: I843fe029b8ac09424a83e8a4e8bdcc86edd40603
Same as CL 313230, for FreeBSD. sigtramp is the only one we need.
Change-Id: Iefc00c1cb7e70b08a07c3bc3604b2114fd86563d
Reviewed-on: https://go-review.googlesource.com/c/go/+/320912
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
Apparently, in bash, the "continue" keyword can only be used
inside of a loop, not in an if block. If readelf exists but $CC
does not, make.bash emits a warning:
./make.bash: line 135: continue: only meaningful in a `for', `while', or `until' loop
Change it to a conditional.
Change-Id: I00a0940ed99bc0c565094e506705961b6b3d362e
Reviewed-on: https://go-review.googlesource.com/c/go/+/320170
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
People continue to be confused by how these work. Address that by some
rejiggering.
Introduce a constant called Layout that both defines the time and
provides a reference point for Parse and Format to refer to. We can
then delete much redundancy, especially for Format's comments, but
Parse tightens a bit too.
Then change the way the concept of the layout string is introduced,
and provide a clearer catalog of what its elements are.
Fixes#38871
Change-Id: Ib967ae70c7d5798a97b865cdda1fda4daed8a99a
Reviewed-on: https://go-review.googlesource.com/c/go/+/320252
Trust: Rob Pike <r@golang.org>
Run-TryBot: Rob Pike <r@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Fix an apparent typo for the right-hand bound in a couple panic
messages, where '[' was used instead of ']'.
Fixes#46215
Change-Id: Ie419c404ca72ed085a83a2c38ea1a5d6ed326cca
Reviewed-on: https://go-review.googlesource.com/c/go/+/320510
Trust: Robert Findley <rfindley@google.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
To pull in CL 318309.
For #41184
Change-Id: I99adb0478e71dbd72e13551a87ed09eae2a0ef2c
Reviewed-on: https://go-review.googlesource.com/c/go/+/320312
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
The test previously had the hardcoded assumption that /proc/self/status
files had "Groups:" lines containing numerical IDs in ascending order.
Because of the possibility of non-monotonic ordering of GIDs in user
namespaces, this assumption was not universally true for all
/proc/self/gid_map setups.
To ensure this test can pass in those setups, sanity check failed
"Groups:" line matches with a string sorted version of the expected
values. (For the test cases here, numerical and string sorted order
are guaranteed to match.)
Fixes#46145
Change-Id: Ia060e80b123604bc394a15c02582fc406f944d36
Reviewed-on: https://go-review.googlesource.com/c/go/+/319591
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Tobias Klauser <tobias.klauser@gmail.com>
If a user runs 'go get example.com/cmd' for a package in the main
module, it's more likely they intend to fill in missing dependencies
for that package (especially with -u). If the intent were only to
build and install, 'go install example.com/cmd' would be a better
choice.
For #43684
Resolving a comment on CL 305670.
Change-Id: I5c80ffdcdb3425b448f2f49cc20b07a18cb2bbe9
Reviewed-on: https://go-review.googlesource.com/c/go/+/318570
Trust: Jay Conrod <jayconrod@google.com>
Run-TryBot: Jay Conrod <jayconrod@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Some uses of crosscall2 did not work on ppc64le and probably
aix-ppc64. In particular, if there was a main program compiled
with -buildmode=pie and used a plugin which invoked crosscall2,
then failures could occur due to R2 getting set incorrectly along the
way. The problem was due to R2 being saved on the caller's
stack; it is now saved on the crosscall2 stack. More details can be
found in the issue.
This adds a testcase where the main program is built with pie
and the plugin invokes crosscall2.
This also changes the save of the CR bits from MOVD to MOVW as
it should be.
Fixes#43228
Change-Id: Ib5673e25a2ec5ee46bf9a1ffb0cb1f3ef5449086
Reviewed-on: https://go-review.googlesource.com/c/go/+/319489
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Heschi Kreinick <heschi@google.com>
The /* incomplete */ comment printed for interfaces that have not been
"completed" yet is not useful for end-users; it's here for type-checker
debugging. Rather than trying to pass through a debug flag through all
print routines (which may require new exported API), simply don't print
the comment unless we have the debug flag set inside the type-checker.
For #46167.
Change-Id: Ibd22edfe63001dfd2b814eeb94c2d54d35afd88c
Reviewed-on: https://go-review.googlesource.com/c/go/+/320150
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
