The previous code treats some operands such as EQ, LT, etc. as special
registers. However, they are not. This CL adds a new AddrType TYPE_SPOPD
and a new class C_SPOPD to support this kind of special operands, and
refactors the relevant code.
This patch is a copy of CL 260861, contributed by Junchen Li(junchen.li@arm.com).
Co-authored-by: Junchen Li(junchen.li@arm.com)
Change-Id: I57b28da458ee3332f610602632e7eda03af435f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/302849
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Eric Fang <eric.fang@arm.com>
Run-TryBot: Eric Fang <eric.fang@arm.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
This CL adds regabi support needed for reflect and reimplement
of CL 360994, which is reverted.
Change-Id: I140673f09109dd9f72eff70aad64c0aa00d6857a
Reviewed-on: https://go-review.googlesource.com/c/go/+/396077
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: mzh <mzh@golangcn.org>
Currently using the SYS instruction will report the "illegal combination"
error. This is because the assembler parser treats the register operand
as p.To, while optab defines it as p.Reg. This CL fixes this bug.
Change-Id: I57799a7c19934b0c62278948f4efaa41001593a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/396796
Run-TryBot: Eric Fang <eric.fang@arm.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Eric Fang <eric.fang@arm.com>
The MOV like instructions should only have two operands.
Change-Id: Icbfb49e47a91ac305194c2f140d3d81c912f6d6d
GitHub-Last-Rev: 2b25aaa0ed
GitHub-Pull-Request: golang/go#52073
Reviewed-on: https://go-review.googlesource.com/c/go/+/397175
Run-TryBot: Ben Shi <powerman1st@163.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: mzh <mzh@golangcn.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
The current SectionOverlap tests Size (addr) with Offset (file)
This CL set this test for overlap of Size + Addr and
Offset + FileSize
Fixes#51939
Change-Id: Ied4c0b87f61c4d5e52139a8295c371f55abc776f
Reviewed-on: https://go-review.googlesource.com/c/go/+/395920
Trust: mzh <mzh@golangcn.org>
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: mzh <mzh@golangcn.org>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
RFC 7231 does not require that a 3xx response contain a Location header.
When receiving such a response, just return it to the caller rather than
treating it as an error.
Fixes#49281.
Change-Id: I66c06d81b0922016384a0f4ff32bf52e3a3d5983
Reviewed-on: https://go-review.googlesource.com/c/go/+/375354
Trust: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
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Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Trust: Brad Fitzpatrick <bradfitz@golang.org>
Change-Id: Ic36dd232f3ea049403715fadec00a74efbf7dc9e
Reviewed-on: https://go-review.googlesource.com/c/go/+/394075
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: Damien Neil <dneil@google.com>
Trust: Damien Neil <dneil@google.com>
These tests sometimes hang on Windows 10 on ARM64, due to what appears
to be a platform bug. Since we have not yet observed any such hangs on
the windows-arm64-11 builder, I am leaving the tests otherwise enabled
on the theory that the platform bug may have been fixed in Windows 11.
Fixes#52082 (at least for now).
Change-Id: I79161f485b1921f083ebcf01865d6e7b0178ef70
Reviewed-on: https://go-review.googlesource.com/c/go/+/397315
Trust: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
“If you have a procedure with ten parameters, you probably missed some.”
― attr. Alan J. Perlis
I argue that the same is true for hard-coded special cases.
In TestGroupCleanupUserNamespace, instead of a curated list of strings
observed in the wild we now check for a prefix, as was done for
TestGroupCleanup in CL 24670.
Updates #16224.
Updates #16303.
Updates #19938.
Updates #34547.
Updates #46752.
Fixes#52088.
Change-Id: I59c5b0c048113e306996c0f8247e09c714d2423a
Reviewed-on: https://go-review.googlesource.com/c/go/+/397316
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>
The current implementation fails to identify that an argument to go work
use is a file when expecting a directory, and panics when attempting to
access it as a directory. This change checks arguments are directories
and generates an error otherwise.
Fixes#51749
Change-Id: If8f69d233409e93fcf391a8774bace74c031c986
Reviewed-on: https://go-review.googlesource.com/c/go/+/393615
Reviewed-by: Bryan Mills <bcmills@google.com>
Trust: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Trust: Ian Lance Taylor <iant@golang.org>
\u007f is not wrong but it's weird to use \u when we could use the
shorter \x.
Fixes#52062
Change-Id: Ica4bdc2463128051876f44e15297ed1e9edf1de8
Reviewed-on: https://go-review.googlesource.com/c/go/+/397255
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
This fixes a failure mode observed in
https://build.golang.org/log/7b28a914b1914dabe94f7c4e36ad6466ebd4de5d,
in which the expected CONT lines are present but the test completions
are reported in a different (but valid) order.
CONT lines are only printed between interleaved output lines, so if
the ordering of the tests swaps after all output is already generated
the PASS lines can be in arbitrary order.
Fixes#51221 (again).
Change-Id: I051f8ec4331e2e3ab1bb00a7c188c322ad4e0a03
Reviewed-on: https://go-review.googlesource.com/c/go/+/397194
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>
This fixes two independent problems:
We normally propagate desired registers backwards through opcodes that
are marked resultInArg0. Unfortunately for the desired register
computation, ADDQconst is not marked as resultInArg0. This is because
the amd64 backend can write it out as LEAQ instead if the input and
output registers don't match. For desired register purposes, we want
to treat ADDQconst as resultInArg0, so that we get an ADDQ instead of
a LEAQ if we can.
Desired registers don't currently work for tuple-generating opcodes.
Declare that the desired register applies to the first element of the
tuple, and propagate the desired register back through Select0.
Noticed when fixing #51964
Change-Id: I83346b988882cd58c2d7e7e5b419a2b9a244ab66
Reviewed-on: https://go-review.googlesource.com/c/go/+/396035
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: David Chase <drchase@google.com>
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This change lifts all non-platform-specific code out of sys* functions
for each platform up into wrappers, and moves documentation about the OS
virtual memory abstraction layer from malloc.go to mem.go, which
contains those wrappers.
Change-Id: Ie803e4447403eaafc508b34b53a1a47d6cee9388
Reviewed-on: https://go-review.googlesource.com/c/go/+/393398
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Trust: Michael Knyszek <mknyszek@google.com>
Currently, the ReadMemStats (really this is all happening in
readmemstats_m, but that's just a direct call from ReadMemStats) call
chain first populates some fields in memstats, then copies those into
the final MemStats location. This used to make a lot of sense when
memstats' structure aligned with MemStats, and the values were just
copied from one to other. Sometime in the last few releases, we switched
to populating the MemStats manually because a lot of fields had diverged
from their internal representation. Now, we're left with a lot of fields
in memstats that pollute the structure: they only exist to be updated
for the sake of ReadMemStats. Since we're going to be adding more fields
to memstats in further CLs, this is a good opportunity to clean up.
As a result of this change, updatememstats, which used to just update
the aforementioned intermediate fields in memstats, is no longer
necessary, so it is removed.
Change-Id: Ifabfb3ac3002641105af62e9509a6351165dcd87
Reviewed-on: https://go-review.googlesource.com/c/go/+/393397
Trust: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Now that Go 1.18 has been released, remove the old pacer.
Change-Id: Ie7a7596d67f3fc25d3f375a08fc75eafac2eb834
Reviewed-on: https://go-review.googlesource.com/c/go/+/393396
Trust: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
This change adds the Bool type, a convenient wrapper around Uint8 for
atomic bool values.
Change-Id: I86127d6f213b730d6999db5718ca1a5af0c5b538
Reviewed-on: https://go-review.googlesource.com/c/go/+/393395
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Austin Clements <austin@google.com>
Trust: Michael Knyszek <mknyszek@google.com>
When doing external linking on windows, the existing Go linker code
assumed that the external linker defaulted to "--no-dynamicbase" (if
no explicit option was given). This assumption doesn't hold for LLD,
which turns on "--dynamicbase" by default for 64-bit apps. Change the
linker to detect whether a more modern toolchain is in use and to
explicitly pass "--dynamicbase" either way , so as to take the
external linker default out of the equation. This also applies to the
"--high-entropy-va" option as well.
Updates #35006.
Change-Id: I3e12cf6d331c9d003e3d2bd566d45de5710588b9
Reviewed-on: https://go-review.googlesource.com/c/go/+/384156
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
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Tweak the cgo recipe for the TestCgoHandlesWlORIGIN testpoint to avoid
using "-rpath" on Windows, where it doesn't make sense to use it. This
change needed to avoid an "unknown flag -rpath" from clang/ldd on
windows.
Updates #35006.
Change-Id: I4fcd649df4687aa3aff5690e11a15fc0e0f42332
Reviewed-on: https://go-review.googlesource.com/c/go/+/384155
Reviewed-by: Bryan Mills <bcmills@google.com>
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Fixes#52053
Change-Id: I0e1f2737f97a4656913b34a731d8de2c77a15b4d
Reviewed-on: https://go-review.googlesource.com/c/go/+/396918
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
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BSWAP does not affect EFLAGS on neither 386 nor x64. Set the clobberFlags value accordingly.
Change-Id: Ib9e88400607fea44bb51fe95dc4d77e7cb54bfec
Reviewed-on: https://go-review.googlesource.com/c/go/+/391494
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
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Trust: Ian Lance Taylor <iant@golang.org>
Disable the new TestReadCOFFSymbolAuxInfo testpoint on big endian
systems, pending resolution of issue 52079. The newly added interfaces
for reading symbol definition aux info is not working properly when
reading PE objects obj big-endian systems.
Updates #52079.
Change-Id: I8d55c7e4c03fc6444ef06a6a8154cb50596ca58a
Reviewed-on: https://go-review.googlesource.com/c/go/+/397294
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
Currently, in most cases the compiler generates a func value
symbol when it is referenced, except when building a shared object
it generates the func value symbol when the function is declared.
The comment says this was necessary because we cannot deduplicate
DUPOK symbols across DSO boundaries. But the dynamic linker is
just fine to resolve symbols with the same name across DSO
boundaries.
Another problem may be that the address of the PLT stub may be
used. When such a func value is deferred, when the runtime needs
to scan its arguments, it cannot look up the PC to find the
function and therefore cannot find its stack map. This is not a
problem now as deferred functions always have no arguments.
Remove the special case for shared linkage.
Change-Id: Id7df0b0ada6d3d7f85741a9ab09581975509516c
Reviewed-on: https://go-review.googlesource.com/c/go/+/396534
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
The -G compiler option doesn't exist anymore. Update some variable
names and comments to reflect the new reality.
Change-Id: I227e9c59a01615c3a40c3869102e8045cb012980
Reviewed-on: https://go-review.googlesource.com/c/go/+/397254
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This flag is not supported by clang, so remove it from the cgo cflags
when building for windows. It is clear that it was needed at some
point in the past, but it doesn't appear to be needed at the moment,
since all.bash passes on windows without it now.
Updates #35006.
Change-Id: Ib06c891f516654138e3363e06645cd187e46ce4e
Reviewed-on: https://go-review.googlesource.com/c/go/+/383838
Trust: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
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Add some rudimentary support to the PE file loader for handling
sections in COMDAT when reading host object files. This is needed
in order to link programs with support libraries that are of a more
modern vintage than GCC 5.X.
If a given section XYZ is in COMDAT, the symbol for that section will
be flagged, e.g. section 'Characteristics' field will have the
IMAGE_SCN_LNK_COMDAT bit set, and the symbol will be followed by an
"aux" symbol that includes the COMDAT handling strategy that the
linker needs to use.
This patch supports two COMDAT strategies (IMAGE_COMDAT_SELECT_ANY and
IMAGE_COMDAT_SELECT_SAME_SIZE); more work will have to be done in the
future to support other flavors if it turns out that they are needed.
Updates #35006.
Change-Id: I516e825c30ed3df94ba08323b8a24fb847e10c1a
Reviewed-on: https://go-review.googlesource.com/c/go/+/383835
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Than McIntosh <thanm@google.com>
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Add hooks to support reading of section definition symbol aux data
(including COMDAT information) from the aux symbols associated with
section definition symbols. The COFF symbol array made available by
"pe.File" includes entries for aux symbols, but doesn't expose their
structure (since it varies depending on the type of aux symbol). This
patch adds a function for returning a specific class of aux symbol
("type 5") that immediately follows a COFF symbol corresponding to a
section definition.
Updates #35006.
Updates #51868.
Change-Id: I21fcc057150f7a3c64f01a5961aabca0fa43399e
Reviewed-on: https://go-review.googlesource.com/c/go/+/394534
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Alex Brainman <alex.brainman@gmail.com>
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
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When doing an internal link on Windows, it's possible to see
unresolved references to the symbols "__CTOR_LIST__" and/or
"__DTOR_LIST__" (which are needed in some circumstances). If these are
still unresolved at the point where we're done reading host objects,
then synthesize dummy versions of them.
Updates #35006.
Change-Id: I408bf18499bba05752710cf5a41621123bd84a3b
Reviewed-on: https://go-review.googlesource.com/c/go/+/383836
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
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The spec says "In a union, a term cannot be a type parameter,...",
but it's really the type in a term that cannot be a type parameter.
(Also, for the spec's purposes, a single term is still a union.)
This CL changes the current error message from:
"cannot use type parameter in typeset"
to one of two messages:
"term cannot be a type parameter" (for term of form P)
"type in term ~P cannot be a type parameter (for term of form ~P)
which are more specific and match the spec more closely.
Fixes#50420.
Change-Id: Id48503efc8416cabc03d5c40d8e64d5b3a7f078e
Reviewed-on: https://go-review.googlesource.com/c/go/+/396874
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
No test because we could add an infinite number of tests of bogus data.
For #47653Fixes#52035
Change-Id: Iec7e2fe23f2dd1cf14bad2475422f243f51028f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/396880
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Than McIntosh <thanm@google.com>
For Windows internal linking with CGO, when using more modern
LLVM-based compilers, we may need to read in the object file "crt2.o"
so as to have a definition of "atexit" (for example when linking the
runtime/cgo test), and we also need to allow for the possibility that
a given host archive might have to be looked at more than once. The goal
here is to get all.bash working on Windows when using an up to date
mingw C compiler (including those based on clang + LLD).
This patch also adds a new "hostObject" helper routine, similar to
"hostArchive" but specific to individual object files. There is also a
change to hostArchive to modify the pseudo-package name assigned when
reading archive elements: up until this point, a package name of
"libgcc" was used (even when reading a host archive like
"libmingex.a"), which led to very confusing errors messages if symbols
were missing or there were duplicate definitions.
Updates #35006.
Change-Id: I19c17dea9cfffa9e79030fc23064c7c63a612097
Reviewed-on: https://go-review.googlesource.com/c/go/+/382838
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
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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>
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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>
