This introduces an abstraction for constructing and running "go test"
commands. Currently, dist test is basically a shell script written in
Go syntax: it mostly just invokes lots of subprocesses, almost all of
which are "go test" invocations, and it constructs those command lines
directly from strings all over the place.
This CL raises the level of abstraction of invoking go test. The
current level of abstraction is not serving us very well: it's
conveniently terse, but the actual logic for constructing a command
line is typically so spread out that it's difficult to predict what
command will actually run. For example, the `gotest` function
constructs the basic command, but many tests want to override at least
some of these flags, so flattenCmdLine has logic specific to `go test`
for eliminating duplicate flags that `go test` itself would reject. At
the same time, the logic for constructing many common flags is
conditional, leading to a bevy of helpers for constructing flags like
`-short` and `-timeout` and `-run` that are scattered throughout
test.go and very easy to forget to call.
This CL centralizes and flattens all of this knowledge into a new
`goTest` type. This type gives dist a single, unified point where we
can change anything about how it invokes "go test".
There's currently some "unnecessary" abstraction in the implementation
of the goTest type to separate "build" and "run" flags. This will
become important later when we convert host tests and to do separate
build and run steps.
The following CLs will convert dist test to use this type rather than
directly constructing "go test" command lines. Finally, we'll strip
out the scattered helper logic for building command lines.
For #37486.
Change-Id: I9f1633fe6c0921696419ce8127ed2ca7b7a4e01b
Reviewed-on: https://go-review.googlesource.com/c/go/+/448802
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Programs that call Seed and then expect a specific sequence
of results from the global random source (using functions such as Int)
can be broken when a dependency changes how much it consumes
from the global random source. To avoid such breakages, programs
that need a specific result sequence should use NewRand(NewSource(seed))
to obtain a random generator that other packages cannot access.
Fixes#56319.
Change-Id: Idac33991b719d2c71f109f51dacb3467a649e01e
Reviewed-on: https://go-review.googlesource.com/c/go/+/451375
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
A few new opcodes are added to support ROP mitigation on
Power10.
Change-Id: I13045aebc0b6fb09c64dc234ee5741318670d7ff
Reviewed-on: https://go-review.googlesource.com/c/go/+/425597
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-by: Joedian Reid <joedian@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Currently, cmd/go's testterminal18153 is implemented as a special test
that doesn't run as part of cmd/go's regular tests. Because the test
requires stdout and stderr to be a terminal, it is currently run
directly by "dist test" so it can inherit the terminal of all.bash.
This has a few problems. It's yet another special case in dist test.
dist test also has to be careful to not apply its own buffering to
this test, so it can't run in parallel and it limits dist test's own
scheduler. It doesn't run as part of regular "go test", which means it
usually only gets coverage from running all.bash. And since we have to
skip it if all.bash wasn't run at a terminal, I'm sure it often gets
skipped even when running all.bash.
Fix all of this by rewriting this test to create its own PTY and
re-exec "go test" to check that PTY passes through go test. This makes
the test self-contained, so it can be a regular cmd/go test, we can
drop it from dist test, and it's not sensitive to the environment of
all.bash.
Preparation for #37486.
Updates #18153.
Change-Id: I6493dbb0143348e299718f6e311ac8a63f5d69c5
Reviewed-on: https://go-review.googlesource.com/c/go/+/449503
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
We're going to use this for another test, so make it more accessible.
Preparation for #37486.
Change-Id: If194cc4244c4b9e1b1f253759b813555b39ad67e
Reviewed-on: https://go-review.googlesource.com/c/go/+/449502
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
The registerTest function has a special case for commands that start
with "time", but we don't use this case anywhere. Delete this special
case and its support code.
Preparation for #37486.
Change-Id: Ica180417e7aa4e4fc260cb97467942bae972fdb6
Reviewed-on: https://go-review.googlesource.com/c/go/+/448801
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
This is unused, and eliminating it lets us simplify the whole
registerTest mechanism.
Preparation for #37486.
Change-Id: Ia6221e48192cd17775a5d662bdb389d67a9265bc
Reviewed-on: https://go-review.googlesource.com/c/go/+/448800
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
I keep having to reconstruct how dist test's command system works.
This CL documents the main functions to help with this.
Change-Id: Ic1102496d3c7f356e73f3fa2ea76498251f525d4
Reviewed-on: https://go-review.googlesource.com/c/go/+/448799
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
The cmd/dist cgo_test enumerates a large number of platforms in
various special cases. Some combinations are suspiciously absent. This
CL completes the combinations.
I've confirmed using trybots that the newly-enabled tests pass on
android/* (this is not surprising because the gohostos is never
"android" anyway), windows/arm64, linux/ppc64 (no cgo), linux/loong64
(except for one test, filed #56623), linux/mips*, netbsd/arm (except
for one test, filed #56629), and netbsd/arm64. The windows/arm builder
is out to lunch, so I'm assuming that works. Since netbsd/arm and
arm64 mostly passed these tests, I've also enabled them on netbsd/386
and netbsd/amd64, where they seem to work fine as well.
Preparation for #37486.
Change-Id: I04c3348e4f422d74d51e714647ca3db379e6e919
Reviewed-on: https://go-review.googlesource.com/c/go/+/448016
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Austin Clements <austin@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
When detecting invalid types, we may detect cycles through instances.
Ensure that the uninstantiated origin type is also marked invalid.
Fixes#56665
Change-Id: Id67653bcb072ac80161dea07d0ced566e61564a8
Reviewed-on: https://go-review.googlesource.com/c/go/+/449275
Run-TryBot: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
This specifically doesn't add support for X25519 certificates.
Refactored parsePublicKey not to depend on the public PublicKeyAlgorithm
values, and ParseCertificate/ParseCertificateRequest to ignore keys that
don't have a PublicKeyAlgorithm even if parsePublicKey supports them.
Updates #56088
Change-Id: I2274deadfe9bb592e3547c0d4d48166de1006df0
Reviewed-on: https://go-review.googlesource.com/c/go/+/450815
Reviewed-by: Roland Shoemaker <roland@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
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Reviewed-by: Joedian Reid <joedian@golang.org>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Fix noopt build break from CL 450136 by not running test.
I can't reproduce the failure locally, but it's entirely reasonable
for this test to fail when optimizations are disabled, so just don't
run it when optimizations are disabled.
Change-Id: I882760fc7373ba0449379f81d295312a6be49be1
Reviewed-on: https://go-review.googlesource.com/c/go/+/450740
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Michael Stapelberg <stapelberg@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Global variable initializers like
var myErr error = &myError{"msg"}
have been converted to statically initialized data
from the earliest days of Go: there is no init-time
execution or allocation for that line of code.
But if the expression is moved into an inlinable function,
the static initialization no longer happens.
That is, this code has always executed and allocated
at init time, even after we added inlining to the compiler,
which should in theory make this code equivalent to
the original:
func NewError(s string) error { return &myError{s} }
var myErr2 = NewError("msg")
This CL makes the static initialization rewriter understand
inlined functions consisting of a single return statement,
like in this example, so that myErr2 can be implemented as
statically initialized data too, just like myErr, with no init-time
execution or allocation.
A real example of code that benefits from this rewrite is
all globally declared errors created with errors.New, like
package io
var EOF = errors.New("EOF")
Package io no longer has to allocate and initialize EOF each
time a program starts.
Another example of code that benefits is any globally declared
godebug setting (using the API from CL 449504), like
package http
var http2server = godebug.New("http2server")
These are no longer allocated and initialized at program startup either.
The list of functions that are inlined into static initializers when
compiling std and cmd (along with how many times each occurs) is:
cmd/compile/internal/ssa.StringToAux (3)
cmd/compile/internal/walk.mkmapnames (4)
errors.New (360)
go/ast.NewIdent (1)
go/constant.MakeBool (4)
go/constant.MakeInt64 (3)
image.NewUniform (4)
image/color.ModelFunc (11)
internal/godebug.New (12)
vendor/golang.org/x/text/unicode/bidi.newBidiTrie (1)
vendor/golang.org/x/text/unicode/norm.newNfcTrie (1)
vendor/golang.org/x/text/unicode/norm.newNfkcTrie (1)
For the cmd/go binary, this CL cuts the number of init-time
allocations from about 1920 to about 1620 (a 15% reduction).
The total executable code footprint of init functions is reduced
by 24kB, from 137kB to 113kB (an 18% reduction).
The overall binary size is reduced by 45kB,
from 15.335MB to 15.290MB (a 0.3% reduction).
(The binary size savings is larger than the executable code savings
because every byte of executable code also requires corresponding
runtime tables for unwinding, source-line mapping, and so on.)
Also merge test/sinit_run.go, which had stopped testing anything
at all as of CL 161337 (Feb 2019) and initempty.go into a new test
noinit.go.
Fixes#30820.
Change-Id: I52f7275b1ac2a0a32e22c29f9095071c7b1fac20
Reviewed-on: https://go-review.googlesource.com/c/go/+/450136
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Joedian Reid <joedian@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
We already emit types for any and func(error) string in runtime.a
but unlike the other pre-emitted types, we don't then exclude them
from being emitted in other packages. Fix that.
Also add slices of non-func types that we already emit.
Saves 0.3% of .a files in std cmd deps, computed by adding sizes from:
ls -l $(go list -export -f '{{.Export}}' -deps std cmd
The effect is small and not worth doing on its own.
The real improvement is making “what to write always in runtime”
and “what not to write in other packages” more obviously aligned.
Change-Id: Ie5cb5fd7e5a3025d2776d9b4cece775fdf92d3b6
Reviewed-on: https://go-review.googlesource.com/c/go/+/450135
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
For range loops, we use a pointer to the backing store that gets
incremented on each iteration of the loop.
The problem with this scheme is that at the end of the last iteration,
we may briefly have a pointer that points past the end of the backing store
of the slice that is being iterated over. We cannot let the garbage collector
see that pointer.
To fix this problem, have the incremented pointer live briefly as
a uintptr instead of a normal pointer, so it doesn't keep anything
alive. Convert back to a normal pointer just after the loop condition
is checked, but before anything that requires a real pointer representation
(in practice, any call, which is what could cause a GC scan or stack copy).
Fixes#56699
Change-Id: Ia928d23f85a211565357603668bea4e5c534f989
Reviewed-on: https://go-review.googlesource.com/c/go/+/449995
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
When PSSSaltLengthAuto is passed to SignPSS, and the key size is too
small to create a valid salt, return ErrMessageTooLong
Change-Id: I4e0d70bdd54fcd667eae10e0a70b4f540a4ebe93
Reviewed-on: https://go-review.googlesource.com/c/go/+/450796
Reviewed-by: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Roland Shoemaker <roland@golang.org>
This not only reduces the latency of the test, but also respects
build flags like '-race' and '-cover' passed to the 'go test' command.
Change-Id: Ie9a3c03d32d7eea268ba6f8f8ac4000539434052
Reviewed-on: https://go-review.googlesource.com/c/go/+/450713
Auto-Submit: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
testenv.Command sets a default based on the test\'s deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: I6710d9866c16610310347d50be1c0916c2976e87
Reviewed-on: https://go-review.googlesource.com/c/go/+/450712
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: I973be280cd0a7f495b491bfb0e04771389562e04
Reviewed-on: https://go-review.googlesource.com/c/go/+/450711
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
This not only reduces the latency of the test, but also respects
build flags like '-race' and '-cover' passed to the 'go test' command.
Change-Id: I4914870396f90097f45d00012e5601fe42655899
Reviewed-on: https://go-review.googlesource.com/c/go/+/450710
Run-TryBot: Bryan Mills <bcmills@google.com>
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Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: Iabd114dd23b85da524e7ea8415f2bbf2c54b380f
Reviewed-on: https://go-review.googlesource.com/c/go/+/450709
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This not only reduces the latency of the test, but also respects
build flags like '-race' and '-cover' passed to the 'go test' command.
Change-Id: Icdf256420c4dce2da7a187513b7dd08393b76146
Reviewed-on: https://go-review.googlesource.com/c/go/+/450708
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Auto-Submit: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: Ia1dd1bacfa2c9378401bbce304ebf7ee3f159352
Reviewed-on: https://go-review.googlesource.com/c/go/+/450707
Run-TryBot: Bryan Mills <bcmills@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
This not only reduces the latency of the test, but also respects
build flags like '-race' and '-cover' passed to the 'go test' command.
Change-Id: Ifaf396465f54ad0a28977b6c0a4b87dbc359de37
Reviewed-on: https://go-review.googlesource.com/c/go/+/450706
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: I1965ea453af6aa9eeae9669065deb0b372dc6caf
Reviewed-on: https://go-review.googlesource.com/c/go/+/450705
Run-TryBot: Bryan Mills <bcmills@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
This not only reduces the latency of the test, but also respects
build flags like '-race' and '-cover' passed to the 'go test' command.
Change-Id: Icd22062ab75964a74d011c81ea6c99be80bece18
Reviewed-on: https://go-review.googlesource.com/c/go/+/450704
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This not only reduces the latency of the test, but also respects
build flags like '-race' and '-cover' passed to the 'go test' command.
Change-Id: Iffdc60d444a9ff1d4ff5e688bca1c2ef0dfa03c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/450703
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: I25a67aa5793c6fa977ff6d4dc59ca1533bf58d41
Reviewed-on: https://go-review.googlesource.com/c/go/+/450702
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: I464dc34b50f3360123aca9e8666df9799c15e457
Reviewed-on: https://go-review.googlesource.com/c/go/+/450701
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: I6f8391da50e74919ccc59cd43ccae99affab8798
Reviewed-on: https://go-review.googlesource.com/c/go/+/450700
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: Ica1a9985f9abb1935434367c9c8ba28fc50f331d
Reviewed-on: https://go-review.googlesource.com/c/go/+/450699
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: Ia18c323067a416381e5a70d08c50f51576054a79
Reviewed-on: https://go-review.googlesource.com/c/go/+/450698
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: Ic19172b6cd05526cf6776b904e2dfebdd8b055a8
Reviewed-on: https://go-review.googlesource.com/c/go/+/450697
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: I084b324a20d5ecf733b2cb95f160947a7410a805
Reviewed-on: https://go-review.googlesource.com/c/go/+/450696
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: Ic19f8b020f6d410942bb2ece8a3b71607ee6488a
Reviewed-on: https://go-review.googlesource.com/c/go/+/450695
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Seems simpler than having two different parsing mechanisms.
Change-Id: I4f8468bc025f8e03f59ec9c79b17721581b64eed
Reviewed-on: https://go-review.googlesource.com/c/go/+/448855
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Joedian Reid <joedian@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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On advice of the department of garbage collection, forcing a garbage
collection generally does not improve performance. However,
this-data-is-now-unreachable is a good property to be able to test,
and that requires finalizers and a forced GC. So, to save build time,
this test was removed from the compiler itself, but to verify the
property, it was added to the fma_test (and the end-to-end dependence
on the flag was tested with an inserted failure in testing the
test).
TODO: also turn on the new -d=gccheck=1 debug flag on the ssacheck
builder.
Benchmarking reveals that it is profitable to avoid this GC,
with about 1.5% reduction in both user and wall time.
(48 p) https://perf.golang.org/search?q=upload:20221103.3
(12 p) https://perf.golang.org/search?q=upload:20221103.5
Change-Id: I4c4816d619735838a32388acf0cc5eb1cd5f0db5
Reviewed-on: https://go-review.googlesource.com/c/go/+/447359
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
For #56603, CL 448275 added a _ [0]T field to atomic.Pointer,
so that different kinds of atomic.Pointer are not convertible.
Unfortunately, that breaks code like:
type List struct {
Next atomic.Pointer[List]
}
which should be valid, just as using Next *List is valid.
Instead, we get:
./atomic_test.go:2533:6: invalid recursive type List
./atomic_test.go:2533:6: List refers to
./atomic_test.go:2534:13: "sync/atomic".Pointer refers to
./atomic_test.go:2533:6: List
Fix by using _[0]*T instead.
Change-Id: Icc4c83c691d35961d20cb14b824223d6c779ac5e
Reviewed-on: https://go-review.googlesource.com/c/go/+/450655
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
CL 440455 fixed missing walk pass for static initialization slice.
However, slicelit may produce un-typechecked node, thus we need to do
typecheck for sinit before calling walkStmtList.
Fixes#56727
Change-Id: I40730cebcd09f2be4389d71c5a90eb9a060e4ab7
Reviewed-on: https://go-review.googlesource.com/c/go/+/450215
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
