The check in prepareCgroupFD tried to find out if clone3 with
CLONE_INTO_CGROUP flag is supported, by supplying arguments in
SysProcAttr that will make ForkExec use clone3 with CLONE_INTO_CGROUP
and fail.
CL 456375 inadvertently broke the above check by adding more errno
values to ignore. As a result, TestUseCgroupFD is always skipped, even
when the test could in fact be run.
Fix by removing the check entirely, instead let's use the functionality
and figure out from the errno if this has failed because of unsupported
syscall, lack of permissions, or other reason.
Change-Id: I108b27b6cfeec390ebd3f161ac39e8597569b666
Reviewed-on: https://go-review.googlesource.com/c/go/+/520265
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Auto-Submit: Ian Lance Taylor <iant@google.com>
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Update the doc comments to use the more idiomatic and common phrase
"reports whether" instead of "tests whether".
Change-Id: I2b7f8cce2d192f66e296ebaa9b37f37e8276b4ae
Reviewed-on: https://go-review.googlesource.com/c/go/+/524898
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
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Change-Id: I9ab93c90d128d0abd0c84c7520f8c72983fee79b
Reviewed-on: https://go-review.googlesource.com/c/go/+/524975
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
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strings.ReplaceAll is currently available.
Change-Id: I111b97f12723c97791b59d81fd035a0d5e97cd4b
GitHub-Last-Rev: 561dbab6d2
GitHub-Pull-Request: golang/go#62369
Reviewed-on: https://go-review.googlesource.com/c/go/+/524157
Reviewed-by: Ian Lance Taylor <iant@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
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Waiting only for 100ms might be not enough for the callback to be
called. It is more reliable to wait infinitely and rely on the
test timeout to fail the test if the callback is not called.
Fixes#62206
Change-Id: I06b5eadae1dd334a2afc41af31a44b42cb5e596d
Reviewed-on: https://go-review.googlesource.com/c/go/+/524695
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Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
We were accidentally using the sysconf parameter constant.
Change to using the value of that sysconf parameter.
Change-Id: Id7668e7cced0ce7504df99dbbff0757d29dee8c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/524555
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Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Also add a test that the VDSO is actually working.
Fixes#62309
Change-Id: Ia846b36dfc21716f1653bdf2671485a4cf4a7bd1
Reviewed-on: https://go-review.googlesource.com/c/go/+/523955
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Austin Clements <austin@google.com>
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We only use it for gccgo. Also only write out LDFLAGS,
as that is all that cmd/go uses.
Fixes#60642
Change-Id: I6ccc419a17a433583d9868dd63aa7ec41c2b22c4
Reviewed-on: https://go-review.googlesource.com/c/go/+/524556
Auto-Submit: Ian Lance Taylor <iant@google.com>
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The LUCI builders seem to show that the failure mode in #62359 is not
specific to windows/arm64, but it occurs to me that we ought to be
able to eventually retry by making the timeout so short that the
remote end can't possibly respond in time (discounting the possibility
that the kernel itself might short-circuit the loopback address).
For #62377.
Updates #62359.
Updates #56876.
Change-Id: I1fb5fa4f2a5d2cfe35465f34248ed9a035f91f4f
Reviewed-on: https://go-review.googlesource.com/c/go/+/524595
Reviewed-by: Damien Neil <dneil@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
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The unmarshal and marshal XML text should be consistent if not modified deserialize variable.
Fixes#61881
Change-Id: I475f7b05211b618685597d3ff20b97e3bbeaf8f8
GitHub-Last-Rev: 6831c770c3
GitHub-Pull-Request: golang/go#58401
Reviewed-on: https://go-review.googlesource.com/c/go/+/466295
Reviewed-by: ri xu <xuri.me@gmail.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
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For #60088
Change-Id: I4b2a5c6c59ef26361f343052a4ddaabde5d3bc94
GitHub-Last-Rev: d519835ad5
GitHub-Pull-Request: golang/go#62370
Reviewed-on: https://go-review.googlesource.com/c/go/+/524259
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Reviewed-by: Roland Shoemaker <roland@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Change-Id: Iad902ec2a13b0c5c594c60ecac0b40f641574a1e
Reviewed-on: https://go-review.googlesource.com/c/go/+/524275
Reviewed-by: Ian Lance Taylor <iant@google.com>
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The addmod.go and savedir.go testdata generation tools were missing the
"cmd/go/internal/str" import, causing them to fail to build. This change
adds the imports.
This makes progress on the work to use Join functions rather than path
manipulation using the path separator:
https://go-review.googlesource.com/c/go/+/463178
Change-Id: Ia70253afc0a351c646e672bd4178a8738e4e69cf
Reviewed-on: https://go-review.googlesource.com/c/go/+/524155
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Reviewed-by: Bryan Mills <bcmills@google.com>
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Since we have only seen this failure mode on windows/arm64,
we do not skip on the Go project's windows/amd64 builders
so that we will be more likely to find out whether this failure mode
is specific to arm64.
Also simplify the ECONNRESET check, since I've remembered that the
error_*_test.go files exist.
Fixes#62359.
Updates #56876.
Change-Id: I17bd678486f3d3ec3363a45986a711f570b013d0
Reviewed-on: https://go-review.googlesource.com/c/go/+/524455
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Preparation for the introduction of alias types.
Because asNamed is not exported, existing external
tests continue to use t.(*Named).
Change-Id: I4754b406dd6b23030d3703a486d6f6620b2464fe
Reviewed-on: https://go-review.googlesource.com/c/go/+/522876
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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This reverts commit c1dfbf72e1.
Reason for revert: TESTL rule is wrong when the result is used for an ordered comparison.
Fixes#62360
Change-Id: I4d5b6aca24389b0a2bf767bfbc0a9d085359eb38
Reviewed-on: https://go-review.googlesource.com/c/go/+/524255
Run-TryBot: Keith Randall <khr@golang.org>
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Reviewed-by: Jakub Ciolek <jakub@ciolek.dev>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
In inexact unification, when a named type matches against an inferred
unnamed type, we change the previously inferred type to the named type.
This preserves the type name and assignability.
We have to do the same thing when encountering a directional channel:
a bidirectional channel can always be assigned to a directional channel
but not the other way around. Thus, if we see a directional channel, we
must choose the directional channel.
This CL extends the previously existing logic for named types to
directional channels and also makes the code conditional on inexact
unification. The latter is an optimization - if unification is exact,
type differences don't exist and updating an already inferred type has
no effect.
Fixes#62157.
Change-Id: I807e3b9f9ab363f9ed848bdb18b2577b1d680ea7
Reviewed-on: https://go-review.googlesource.com/c/go/+/521500
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This logic is no longer used, since the removal of the non-unified
frontends.
Change-Id: I7256d4eb06f0b4e5308bc7c7476e90af9e70b7d8
Reviewed-on: https://go-review.googlesource.com/c/go/+/524215
Reviewed-by: Keith Randall <khr@golang.org>
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Auto-Submit: Matthew Dempsky <mdempsky@google.com>
TestDialTimeout has historically been very flaky
(#11872, #13144, #22896, and now #56876),
apparently in part due to implementation details of the socktest
package it relies on.
In reviewing CL 467335, I noticed that TestDialTimeout is the last
remaining use of testHookDialChannel (added for #5349), and that that
hook no longer has any effect for Unix and Windows.
As an experiment, I tried removing both that hook and the call to
time.Sleep in the socktest filter, and to my surprise the test
continued to pass. That greatly undermined my confidence in the test,
since it appears that the “timeout” behavior it observes is caused by
the socktest filter injecting an error rather than anything in the net
package proper actually timing out.
To restore confidence in the test, I think it should be written
against only the public API of the net package, and should test the
publicly-documented behaviors. This change implements that approach.
Notably, when a timeout is set on a Dial call, that does not guarantee
that the listener will actually call Accept on the connection before
the timeout occurs: the kernel's network stack may preemptively accept
and buffer the connection on behalf of the listener. To avoid test
flakiness, the test must tolerate (and leave open) those spurious
connections: when the kernel has accepted enough of them, it will
start to block new connections until the buffered connections have
been accepted, and the expected timeout behavior will occur.
This also allows the test to run much more quickly and in parallel:
since we are relying on real timeouts instead of injected calls to
time.Sleep, we can set the timeouts to be much shorter and run
concurrently with other public-API tests without introducing races.
Fixes#56876.
Change-Id: I90dcb2ed70976e70857ca29c253ed760cb078a4c
Reviewed-on: https://go-review.googlesource.com/c/go/+/524055
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The object file format now has an explicit section for tracking which
packages were imported, so we don't need to write out importpath
symbols for all directly imported packages anymore.
However, keep the logic for writing out individual importpath symbols,
because it's still relevant to runtime type descriptor generation.
Change-Id: I184ff320e894ba43ca0f8a3d2678e4b2bbbe6da5
Reviewed-on: https://go-review.googlesource.com/c/go/+/523875
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We don't actually depend on Inl.Body anywhere, except it implicitly
serves to indicate whether Inl.Dcl has been populated. So replace it
with a boolean so we don't need to keep a useless copy of every
inlinable function body in memory.
While here, also add some Fatalfs to make sure there are no unused
local variables. The unified frontend now omits unreachable code
during export data writing, so there shouldn't be unused local
variables.
Also, since unified IR uses the same code/data to construct the
original function as inlined and/or imported functions, the Dcl list
should always be the same, which addresses the real root issue (i.e.,
that export/import could skew the Dcl lists).
Change-Id: I6e3435f3a0352f6efbae787344006efac1891e84
Reviewed-on: https://go-review.googlesource.com/c/go/+/523315
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
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This adds a modicum of type safety to these APIs, which are otherwise
quite confusing to follow.
Change-Id: I268a9a1a99a47dcfef6dc1e9e5be13673af3fb85
Reviewed-on: https://go-review.googlesource.com/c/go/+/523396
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cmd/asm and cmd/compile now always create symbols with the appropriate
package prefixes, so cmd/internal/dwarf and cmd/internal/obj can stop
worrying about qualifying names itself.
Change-Id: I9aee5d759bf0d41a61722c777e7f66fce957e79e
Reviewed-on: https://go-review.googlesource.com/c/go/+/523338
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cmd/compile has required the -p flag since go.dev/cl/391014. It's safe
to eliminate the fallback code that tried to cope without.
Change-Id: I9a62ff829e34a6fa5bfe6ae6a836610cc3f0cd33
Reviewed-on: https://go-review.googlesource.com/c/go/+/523337
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Now that cmd/asm always knows its package path, we can create symbols
with the appropriate package prefix instead of "".
Change-Id: I56864089e8f1b38ff4197b3158131f976b329572
Reviewed-on: https://go-review.googlesource.com/c/go/+/523336
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This CL changes cmd/internal/obj to also implicitly set
ArgsPointerMaps and ArgInfo for assembly functions that are explicitly
package qualified (e.g., "pkg·name", not just "·name"). This is a
prerequisite for changing cmd/asm to stop emitting `"".`-prefixed
symbol names.
Change-Id: I4e14bc24c87cf4d7114a7aed9beaf0c8d1f9c07f
Reviewed-on: https://go-review.googlesource.com/c/go/+/523335
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Several of the tests in crypto/des were using the unexported
desCipher type and other unexported functions to test the package,
leaving desCipher.Encrypt and desCipher.Decrypt only partially tested.
This CL changes the tests to use the public API, except for
TestInitialPermute and TestFinalPermute, which are testing
implementation details on purpose.
Change-Id: I0bc13cea06b79b29425412b9bf36b997871518ac
Reviewed-on: https://go-review.googlesource.com/c/go/+/520495
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Internally the security model for the image package has always been,
if you don't call DecodeConfig before Decode, you cannot complain if
Decode attempts to create an arbitrarily large image (with the
assumption that DecodeConfig would've told you this information). This
should be explicitly documented.
Change-Id: I5c37b91131d6352637e725fe415f37a28f12f66d
Reviewed-on: https://go-review.googlesource.com/c/go/+/523578
Reviewed-by: Damien Neil <dneil@google.com>
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Currently we include those relocation types in bootstrap code.
Change-Id: I3016f33f70a756255545431319ffc542893e75aa
GitHub-Last-Rev: 24916e86d0
GitHub-Pull-Request: golang/go#62322
Reviewed-on: https://go-review.googlesource.com/c/go/+/523395
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StructOf() calls reflect.Type.Method(), but looks up only methods
accessible via interfaces. DCE does not remove such methods, so
there is no need to disable the DCE if StructOf() is used.
There is a dependency chain between struct rtype and StructOf():
(*rtype).Method() -> FuncOf() -> initFuncTypes() -> StructOf().
Thus, any use of (*rtype).Method() or (*rtype).MethodByName()
disables the DCE in the linker. This is not an issue just yet
because all users of Method() and MethodByName() are flagged
as ReflectMethods. A subsequent patch avoids this flag on callers
of MethodByName(string literal). When that patch is applied,
it becomes important to have no ReflectMethods down the call
chain of MethodByName().
Change-Id: I9b3e55c495c122ed70ef31f9d978c0e2e0573799
Reviewed-on: https://go-review.googlesource.com/c/go/+/522435
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Reviewed-by: Joedian Reid <joedian@golang.org>
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There is no need to use atomic.Value, atomic.Pointer should also
be more performant here.
Change-Id: I04cc1befbe1112665a9d9e16197ea3caef5e5fa3
GitHub-Last-Rev: 577902519f
GitHub-Pull-Request: golang/go#62288
Reviewed-on: https://go-review.googlesource.com/c/go/+/523035
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We have obj.Link.Pkgpath, so we don't need to pass it redundantly in
places where we already have an *obj.Link.
Also, renaming the parser's "compilingRuntime" field to "allowABI", to
match the "AllowAsmABI" name used by objabi.LookupPkgSpecial.
Finally, push the handling of GOEXPERIMENT_* flags up to cmd/asm's
main entry point, by simply appending them to flags.D.
Change-Id: I6ada134522b0cbc90d35bcb145fbe045338fefb7
Reviewed-on: https://go-review.googlesource.com/c/go/+/523297
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This reverts commit 50bd17205f.
Reason for revert: The first being the English word, the second being the name of the 3rd parameter.
Change-Id: Iabca436b93ecc5481874e1eac0a1768292447431
Reviewed-on: https://go-review.googlesource.com/c/go/+/523835
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The encoding for the control characters \b and \f was
changed in http://go.dev/cl/521675. This CL adjusts the
corresponding comment about encoding bytes < 0x20.
Change-Id: I83b7311e4fa0731f6601ca64a66042425b4cecac
Reviewed-on: https://go-review.googlesource.com/c/go/+/523435
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Joseph Tsai <joetsai@digital-static.net>
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The recently released llvm-16/LoongArch already supports the asan feature;
but gcc13/LoongArch does not yet fully support the asan feature, and asan
will be fully supported in gcc14.
Change-Id: I48a65f2f10e3dc488acd9c02ea1a1f37de192be0
Reviewed-on: https://go-review.googlesource.com/c/go/+/481317
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Bryan Mills <bcmills@google.com>
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Reviewed-by: Meidan Li <limeidan@loongson.cn>
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Change-Id: I1e0476d6d67f0b2d3d4ad487c2619e3d09f485d5
Reviewed-on: https://go-review.googlesource.com/c/go/+/523576
Commit-Queue: Ian Lance Taylor <iant@google.com>
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Auto-Submit: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Previously, the frame pointer wouldn't be restored at all, which could
cause panics during frame pointer unwinding. As of CL 516157, the frame
pointer is restored, but it's restored incorrectly on arm64: on arm64,
the frame pointer points one word below SP, but here it's one below
panic.fp which is the stack pointer of the caller's frame (nothing to do
with the architectural bp).
For #61766.
Change-Id: I86504b85a4d741df5939b51c914d9e7c8d6edaad
Reviewed-on: https://go-review.googlesource.com/c/go/+/523697
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
CL 458395 added support for streaming POST content in Wasm.
Unfortunately, this breaks requests to servers that only support HTTP/1.1.
Revert the change until a suitable fallback or opt-in strategy can be decided.
Fixes#61889
Change-Id: If53a77e1890132063b39abde867d34515d4ac2af
Reviewed-on: https://go-review.googlesource.com/c/go/+/522955
Run-TryBot: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
Reviewed-by: Damien Neil <dneil@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
Implement better classification for load and store pair operations. This in
turn allows us to avoid using pool literals when the offset fits in a 24 bit
unsigned immediate. In this case, the offset can be calculated using two
add immediate instructions, rather than loading the offset from the pool
literal and then adding the offset to the base register. This requires the
same number of instructions, however avoids a load from memory and does
not require the offset to be stored in the literal pool.
Updates #59615
Change-Id: I316ec3d54f1d06ae9d930e98d0c32471775fcb26
Reviewed-on: https://go-review.googlesource.com/c/go/+/515615
Run-TryBot: Joel Sing <joel@sing.id.au>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Joedian Reid <joedian@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
