The existing PE file loader has a special case for the symbol
"__acrt_iob_func", whose hosting object file contains both an actual
definition and also a DLL import symbol "__imp___acrt_iob_func". The
normal way of handling __imp_XXX symbols is for the host object loader
to rename them to their intended target (e.g. "XXX") however if the
target is also defined locally, you get a duplicate definition.
This patch generalizes the def/import symbol detection to apply to all
symbols in the object file being loaded (not just a hard-coded set),
since it will be needed when reading things like crt2.o.
Updates #35006.
Change-Id: I0d0607c27bb7d5f3cb415bc95db816aa13746ba2
Reviewed-on: https://go-review.googlesource.com/c/go/+/382837
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Rewrite the helper "readpesym()" and the code that calls it to pass in
most of the values it needs via a state object (the signature was
getting a bit too busy/lengthy). No change in functionality, this is
just a refactor.
Updates #35006.
Change-Id: I6153ee3a9be3eb885694323ae8e07ec4c8eed646
Reviewed-on: https://go-review.googlesource.com/c/go/+/382836
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Dialer.DialContext no longer performs a redundant check on the length
of the fallback slice, because dialParallel already handles the
situation where the fallback slice is empty or nil.
Change-Id: Ibb16f4813fc55dec2939c54c10e665ff35bfe163
Reviewed-on: https://go-review.googlesource.com/c/go/+/387795
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Updates #29770Fixes#51872
Change-Id: Icee660c8cc6c69a79ad11e818dd8ab40a344e800
Reviewed-on: https://go-review.googlesource.com/c/go/+/394676
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Trust: Daniel Martí <mvdan@mvdan.cc>
Trust: Ian Lance Taylor <iant@golang.org>
After CL 24430, reflect.DeepEqual no longer returns true when comparing
a *Rat built with (*Rat).SetString("0") with one built with
(*Rat).SetInt64(0).
These should be equivalent, but because (*Rat).SetString does not call
norm() when returning the zero value, the result of reflect.DeepEqual
will be false.
One could suggest that developers should use (*Rat).Cmp instead
of relying on reflect.DeepEqual, but if a (*Rat) is part of a
larger struct that is being compared, this can be cumbersome.
This is fixed by calling z.norm() when returning zero in SetString.
Fixes#50944
Change-Id: Ib84ae975bf82fe02d1203aa9668a01960c0fd59d
Reviewed-on: https://go-review.googlesource.com/c/go/+/364434
Reviewed-by: Katie Hockman <katie@golang.org>
Trust: Katie Hockman <katie@golang.org>
Trust: Ian Lance Taylor <iant@golang.org>
So that `strings.SplitN("", "T", int(144115188075855872))` does not panic.
Change-Id: Iea00417e61780bcaf0fee02fa2b18026d89bc545
GitHub-Last-Rev: d1f45b44a8
GitHub-Pull-Request: golang/go#51755
Reviewed-on: https://go-review.googlesource.com/c/go/+/393654
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Tobias Klauser <tobias.klauser@gmail.com>
__SIZE_TYPE__ is a GCC type which has been superseded
by size_t -define in stddef.h- since ISO C99.
cmd/cgo already uses size_t in many places, but still generates several
files using __SIZE_TYPES__, most notably the _cgo_export.h.
This change replaces all __SIZE_TYPES__ occurrences with size_t.
Updates #36233
Change-Id: Id8a99b5d7763caab9333eab9b585e78249a37415
Reviewed-on: https://go-review.googlesource.com/c/go/+/379474
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Adding comments to these functions help IDE tooling to display
meaningful documentation, p.e. on hover.
Tested with gopls and vscode.
Updates #51134
Change-Id: Ie956f7cf192af0e828def4a141783f3a2589f77d
Reviewed-on: https://go-review.googlesource.com/c/go/+/386414
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
Be clear that the type of a term (not the term itself, which may
be of the form ~P) cannot be a type parameter.
For #50420.
Change-Id: I388d57be0618393d7ebe2c74ec04c1ebe3f33f7d
Reviewed-on: https://go-review.googlesource.com/c/go/+/396915
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
In preparation to make html/template and text/template use a
single generics package, this change make FuncMap a type alias
of text/template.FuncMap.
Fixes#46121
Change-Id: I5e94cc8fdf4fe029ff223992b5cdfe79f9c098ab
Reviewed-on: https://go-review.googlesource.com/c/go/+/389156
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
If a package could not be imported for whatever reason, the type checker
creates fake package with which it continues for more tolerant type
checking.
Do not report an "imported but not used" error in that case.
Clarify a few comments along the way.
Fixes#43109.
Change-Id: Ifeec0daa688fbf666412dc9176ff1522d02a23ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/396875
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
For syntax errors in various (syntactic) lists, instead of reporting
a set of "expected" tokens (which may be incomplete), provide context
and mention "possibly missing" tokens. The result is a friendlier and
more accurate error message.
Fixes#49205.
Change-Id: I38ae7bf62febfe790075e62deb33ec8c17d64476
Reviewed-on: https://go-review.googlesource.com/c/go/+/396914
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
If there is a go.work file in src, "go test cmd/internal/moddeps"
and "go test cmd/go" fail. Setting GOWORK=off in various command
invocations avoids this problem.
Change-Id: I89fd021ff94998ceda6a3bbc4c3743f08558f98b
Reviewed-on: https://go-review.googlesource.com/c/go/+/396777
Trust: Bryan Mills <bcmills@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Trust: David Chase <drchase@google.com>
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
(Also rename it to no longer describe itself in terms of sleeping.)
This test previously relied on the scheduler to wake up a goroutine to
write the "--- PASS: TestFast" line within 100ms of TestFast actually
finishing. On some platforms, even that long a delay is apparently too
short.
Instead, we now use a deterministic "=== RUN" line instead of a
timing-dependent "--- PASS" line to interrupt the output.
Fixes#51221
Change-Id: I3997640fb7577e29e3866a82d4d49a3a70a4b033
Reviewed-on: https://go-review.googlesource.com/c/go/+/386154
Trust: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
findgoversion has some logic from before the go1 release that only
has effect when on a release branch without a VERSION file.
Starting with release-branch.go1 and the go1 tag a decade ago,
release branch have always had a VERSION file checked in.
(The commit that adds/updates the VERSION file is what is tagged.)
Since we have no need to support old branches like release-branch.r60,
and such scenarios don't come up in modern Go, delete it to simplify
this code a bit. Should the VERSION file situation change, we'd need
to rework this code anyway.
Fixes#42345.
Change-Id: I13f27babd37aaa5cec30fefde1b8e6ccce816461
Reviewed-on: https://go-review.googlesource.com/c/go/+/393954
Trust: Daniel Martí <mvdan@mvdan.cc>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
When parsing method declarations in an interface, the parser has
for historic reasons gracefully handled a list of method names with
a single (common) signature, and then reported an error. For example
interface {
m1, m2, m3 (x int)
}
This code originally came from the very first parser for Go which
initially permitted such declarations (or at least assumed that
people would write such declarations). Nobody is doing this at this
point, so there's no need for being extra careful here. Remove the
respective code and adjust the corresponding test.
Change-Id: If6f9b398bbc9e425dcd4328a80d8bf77c37fe8b6
Reviewed-on: https://go-review.googlesource.com/c/go/+/396654
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Generics have landed; we cannot revert the syntax anymore. Remove
ability to choose between non-generic and generic code. Also remove
mode to enable method type parameters. Adjust code accordingly.
Also remove a couple of TODOs that are not relevant anymore.
Remove tests from types2 which were focussed on method type parameters,
make types2 and go/types tests match up where there was a difference in
this regard.
Change-Id: I989bdcb19eea7414214af739187fa013a044295d
Reviewed-on: https://go-review.googlesource.com/c/go/+/396634
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
- Use .go suffix for test files as go fmt doesn't descend into testdata
directories.
- Move test files from testdata/go2 into testdata directory.
- Delete some test files that contained type-checker ERROR markers that
were ignored by the TestParseGo2 test but would be considered by the
TestSyntaxErrors test if the files were moved unchanged into the
testdata directory.
- Remove one (type checker) ERROR marker in testdata/slices.go to make
it pass the syntax error tests.
- Delete TestParseGo2 test. There's enough coverage with the existing
TestSyntaxErrors test.
- Add missing copyright notice to testdata/chans.go and gofmt the file.
Change-Id: I449913fe1bd2119987ba33f7152e5e4ba5f3fe31
Reviewed-on: https://go-review.googlesource.com/c/go/+/396518
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Documentation around the use of types.Context is unclear about whether
contexts guarantee deduplication of identical instances. Add explicit
disclaimers that this is not the case.
Fixesgolang/go#51680
Change-Id: I6651587315d3cbf9e8d70a69d3e2ec5cedd00da5
Reviewed-on: https://go-review.googlesource.com/c/go/+/396536
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
CL 367755 added soleComponent for handling 1-byte type interface conversion.
This implementation must be kept in sync with Type.SoleComponent, but it
does not. When seeing a blank field in struct, we must continue looking
at the field type to find sole component, if any. The current code just
terminate immediately, which causes wrong sole component type returned.
Fixes#52020
Change-Id: I4f506fe094fa7c5532de23467a4f9139476bb0a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/396614
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>
After CL 281543, checkassign do not have to check assignment in range
loop anymore, thus its first parameter is un-used.
Change-Id: Idbc46fcb81c3dd5edc87308d228c1a15ca5faf7e
Reviewed-on: https://go-review.googlesource.com/c/go/+/396615
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
RFC 1950 section 2.2 "Data format" says "CINFO (Compression info)... For
CM = 8... Values of CINFO above 7 are not allowed".
Change-Id: Ibbc1213125c7dc045f09901ee7746660e90b5fcd
Reviewed-on: https://go-review.googlesource.com/c/go/+/395734
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Trust: Nigel Tao <nigeltao@golang.org>
There are several of places that save and restore the C callee-saved registers,
the operation is the same everywhere, so this CL defines several macros
to do this, which will help reduce code redundancy and unify the operation.
This CL also replaced consecutive MOVD instructions with STP and LDP instructions
in several places where these macros do not apply.
Change-Id: I815f39fe484a9ab9b6bd157dfcbc8ad99c1420fe
Reviewed-on: https://go-review.googlesource.com/c/go/+/374397
Trust: Eric Fang <eric.fang@arm.com>
Run-TryBot: Eric Fang <eric.fang@arm.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
The Addr should be zero if SHF_ALLOC is not set.
Update #51939
Change-Id: I030f6243d05efabe6b9ebf558e9c0201f7922d23
Reviewed-on: https://go-review.googlesource.com/c/go/+/395919
Trust: mzh <mzh@golangcn.org>
Run-TryBot: mzh <mzh@golangcn.org>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
This CL adds
- spill functions used by runtime
- ABIInternal to functions
Adding new stubs_riscv64 file to eliminate vet issues while compiling.
Change-Id: I2a9f6088a1cd2d9708f26b2d97895b4e5f9f87e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/360296
Trust: mzh <mzh@golangcn.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Use the 1.17 compiler error message together with the receiver base type.
Also, simplify and flatten the receive testing logic for clarity.
Change-Id: I71e58f261900dd7a85d2eb89a310c36b68d1b0b0
Reviewed-on: https://go-review.googlesource.com/c/go/+/396298
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
These are the opcodes required to lower math/bits.Add64 and
math/bits.Sub64 directly into ssa form. Likewise, opcodes which
clobber CA are marked.
This does not alter code generation. It prepares for future changes
to support scheduling carry chaining ops more effectively, and then
changes to lower into PPC64 opcodes.
Change-Id: I2723deee4a98b3c365f691857512df53280ae40f
Reviewed-on: https://go-review.googlesource.com/c/go/+/394594
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Paul Murphy <murp@ibm.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
If a GC related task preempts between hitting the main.main breakpoint
and stepping, the test program may halt forever waiting on a GC
operation. This happens if gdb is configured to halt other threads
while executing a step.
Configure gdb to continue running all threads during a step by
setting the scheduler-locking option to off.
Fixes#49852
Change-Id: Iacc9732cbd23526bde0a295e6fa8a0d90f733f59
Reviewed-on: https://go-review.googlesource.com/c/go/+/370775
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
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Trust: Cherry Mui <cherryyz@google.com>
This is the first step towards decomposing aggregate operations
which create or consume the CA bit of the XER.
This helps optimize the canned sequence of Add64Carry (and
Sub64Borrow if it were implemented similarly) by minimizing
extraneous operations related to loading the CA bit,
reloading CA in chained operations, or extracting it when
unused.
Likewise, mark the operations which clobber CA.
Change-Id: I33e6dd2654a8cc39fcdbb9690a495f03558cdc97
Reviewed-on: https://go-review.googlesource.com/c/go/+/346869
Trust: Paul Murphy <murp@ibm.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Use the 1.17 compiler error message.
Change-Id: Ic62de5bfc9681674069934afc590f5840729f8e2
Reviewed-on: https://go-review.googlesource.com/c/go/+/396297
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Use the 1.17 compiler error message, sans "array" prefix.
Change-Id: I0e70781c5ff02dca30a2004ab4d0ea82b0849eae
Reviewed-on: https://go-review.googlesource.com/c/go/+/396296
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
net.ParseCIDR already rejects input in the form of 2001:db8::%a/32, but
netip.ParsePrefix previously accepted the input and silently dropped the
zone. Make the two consistent by always returning an error if an IPv6
zone is present in CIDR input for ParsePrefix.
Fixes#51899.
Change-Id: Iee7d8d4a5161e0b54a4ee1bd68b02c1a287ff399
Reviewed-on: https://go-review.googlesource.com/c/go/+/396299
Trust: Matt Layher <mdlayher@gmail.com>
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Reviewed-by: Damien Neil <dneil@google.com>
Trust: Damien Neil <dneil@google.com>
For #51572
Change-Id: Ib27be79379c8b3f72e29365b58067d7ee1919e52
Reviewed-on: https://go-review.googlesource.com/c/go/+/396295
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
This updates the cmd/compile/internal/importer to natively support the
"final" unified IR export format. This is really just for unit tests
and symmetry with go/internal/gcimporter though, since
cmd/compile/internal/noder has its own types2.Importer.
Change-Id: I52fbb6134dbc0a903d62c1b04f95d33bd29e0414
Reviewed-on: https://go-review.googlesource.com/c/go/+/388617
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Trust: Matthew Dempsky <mdempsky@google.com>
The new "unix" build tag matches any Unix or Unix-like system.
This is only recognized on go:build lines, not in file names.
For #20322Fixes#51572
Change-Id: I3a991f9e69353b25e259bc6462709cdcd83640fb
Reviewed-on: https://go-review.googlesource.com/c/go/+/389934
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Keep returning nil for the cases where we historically returned nil,
even though this is slightly different for TrimLeft and TrimRight.
Fixes#51793
Change-Id: Ifbdfc6b09d52b8e063cfe6341019f9b2eb8b70e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/393876
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Keith Randall <khr@golang.org>
So far unified IR has been relying on the backwards-compat iexport
data to supply package fingerprints for imports. To be able to drop
the iexport data and natively use unified IR everywhere.
This CL applies basically the same idea that iexport used: simply
hash all of the export data as it's being written out, and then tack
on an 8-byte hash at the end.
Change-Id: Iaca5fbfd7443088bc7f422a1c58be3e762c29014
Reviewed-on: https://go-review.googlesource.com/c/go/+/396196
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
At least on some platforms (e.g. PE dynamic loader) relocations
need to be sorted in address order. Currently we don't always emit
relocations in address order: e.g. for array literal with out-of-
order element initializers, or out-of-order DATA instructions in
assembly code. Sort them.
No test for now as I can't reproduce the failure for #51923.
Fixes#51923.
Change-Id: Ifec5d3476e027bb927bcefd6e45c40ebeccee4ba
Reviewed-on: https://go-review.googlesource.com/c/go/+/396195
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Than McIntosh <thanm@google.com>
We are limited to 64 registers in the allocator today, and PPC64
has not been allocating F0,F26-F31 for quite some time without
performance impact.
Change-Id: If9d60be5037c94991fdd90a44461c3a6b96315cf
Reviewed-on: https://go-review.googlesource.com/c/go/+/395835
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
These FP registers on PPC64 have no restrictions, they can
be used like the others. F27-F31 were sequested long ago for
scratch storage which has long since been reverted, but they
weren't added back to the allocator pool.
Change-Id: I9074660e2fc91a2044c9768f700a8215802cba51
Reviewed-on: https://go-review.googlesource.com/c/go/+/395834
Run-TryBot: Paul Murphy <murp@ibm.com>
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Trust: Lynn Boger <laboger@linux.vnet.ibm.com>
These fields are also valid for _Star.
Change-Id: I2582000ac1737c41416e69f91404f7cac279d718
Reviewed-on: https://go-review.googlesource.com/c/go/+/395916
Trust: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
Use bytealg.IndexByteString(str, 0) instead of looping through the
string to check for a zero byte. A quick and dirty benchmark shows 10x
performance improvement (on amd64 machine, using go 1.17.3).
BytePtrFromString is used by many functions with string arguments.
This change should make many functions in os package, such as those
accepting a filename (os.Open, os.Stat, etc.), a tad faster.
PS I am aware that syscall package is deprecated and frozen, but this
change is mainly for the os package and the likes. The alternative
would be for os to switch to x/sys, which is a much bigger change.
Change-Id: I18fdd50f9fbfe0a23a4a71bc4bd0a5f5b0eaa475
Reviewed-on: https://go-review.googlesource.com/c/go/+/368457
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
