Change-Id: I32ab2f2dcc5e8357b8e832bc40f688a88550007f
Reviewed-on: https://go-review.googlesource.com/c/go/+/436650
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: David Chase <drchase@google.com>
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Auto-Submit: Ian Lance Taylor <iant@golang.org>
Change-Id: I23ab738b73bc33d3b0b10013c3fadd95b5b24681
Reviewed-on: https://go-review.googlesource.com/c/go/+/436719
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Run-TryBot: Ian Lance Taylor <iant@google.com>
Change-Id: I536c7fad84a63e96658c6930a5a77fd70edca33c
Reviewed-on: https://go-review.googlesource.com/c/go/+/436718
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Change-Id: Ia2b376d134d4fd273924de2e4cdee9eba5a15c57
Reviewed-on: https://go-review.googlesource.com/c/go/+/436707
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Change-Id: Ibee86b4c5dc9a18df9bdc65b0ec8339ee1cac7a9
GitHub-Last-Rev: 336580707c
GitHub-Pull-Request: golang/go#55911
Reviewed-on: https://go-review.googlesource.com/c/go/+/435739
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Change-Id: Ia0896bd1edf2558821244fecd1c297b599472f47
GitHub-Last-Rev: cfd1e1091a
GitHub-Pull-Request: golang/go#55944
Reviewed-on: https://go-review.googlesource.com/c/go/+/436637
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Change-Id: I06f85f78c4c802142fc9207b100753decd568274
GitHub-Last-Rev: 4ad4c0f5e9
GitHub-Pull-Request: golang/go#55945
Reviewed-on: https://go-review.googlesource.com/c/go/+/436639
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Change-Id: I164d350ca480640996055dedf38d962921c474a6
Reviewed-on: https://go-review.googlesource.com/c/go/+/435975
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Run-TryBot: hopehook <hopehook@golangcn.org>
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Rename "ifaceWords" to "efaceWords", since we are defining
an empty interface.
Change-Id: I7151fb730a081a800e6dd28bcba831787ee9d6a2
Reviewed-on: https://go-review.googlesource.com/c/go/+/432815
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Run-TryBot: hopehook <hopehook@golangcn.org>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Add the description of Setenv that it cannot use if the test have
parallel ancestors.
Fixes#55128
Change-Id: Ia5a1deaa1a3116d1ebb439600a7d316c7d155412
Reviewed-on: https://go-review.googlesource.com/c/go/+/434115
Auto-Submit: Bryan Mills <bcmills@google.com>
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Reviewed-by: Bryan Mills <bcmills@google.com>
Change-Id: I4f7581d1f4cd8a305acc02454e032c0788d39283
Reviewed-on: https://go-review.googlesource.com/c/go/+/436646
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
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Run-TryBot: Ian Lance Taylor <iant@google.com>
Change-Id: I0b7b6e4e9d2539e4fcb5c08430ba5a74733fad3c
Reviewed-on: https://go-review.googlesource.com/c/go/+/435136
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Run-TryBot: xie cui <523516579@qq.com>
Change-Id: I2854b5e7b48c4c189df84cb7281b7b7de780eebd
Reviewed-on: https://go-review.googlesource.com/c/go/+/435938
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Change-Id: Icfa3fd519df48f8d7d7aa3795535fd7e6aaa159f
Reviewed-on: https://go-review.googlesource.com/c/go/+/435936
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
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Change-Id: Id4c3a140d9619796aee1ba3214f7d5fce040b4e3
Reviewed-on: https://go-review.googlesource.com/c/go/+/435935
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Change-Id: I4730673130bdfbda9987dcb5869f421082f92150
Reviewed-on: https://go-review.googlesource.com/c/go/+/435615
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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The suffix should be 34 not 28. I misread the name because the
reloc listed before these two in the ABI is named "R_PC64_PCREL28".
Updates #54345
Change-Id: Ie8238f55e441c787d70ead58e0a177c650f8b89e
Reviewed-on: https://go-review.googlesource.com/c/go/+/435415
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Fix a couple of places where we still use "parameterized".
Change-Id: I2c70356d4e363ee709c5ef19ec8786956d5e9001
Reviewed-on: https://go-review.googlesource.com/c/go/+/436815
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
An error which implements an "Unwrap() []error" method wraps all the
non-nil errors in the returned []error.
We replace the concept of the "error chain" inspected by errors.Is
and errors.As with the "error tree". Is and As perform a pre-order,
depth-first traversal of an error's tree. As returns the first
matching result, if any.
The new errors.Join function returns an error wrapping a list of errors.
The fmt.Errorf function now supports multiple instances of the %w verb.
For #53435.
Change-Id: Ib7402e70b68e28af8f201d2b66bd8e87ccfb5283
Reviewed-on: https://go-review.googlesource.com/c/go/+/432898
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Rob Pike <r@golang.org>
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
When the compiler crashes, it is not uncommon to see many hundreds
of goroutines all blocked waiting their turn to be one of the nWorkers
goroutines that is allowed to run. All these goroutine stacks are not a
terribly efficient use of memory, and they also make the crash dumps
hard to read.
Introduce a manager goroutine to hand out work to at most nWorker
goroutines, maintaining pending work in a local slice, rather than
having all those blocked goroutines hanging around waiting to run.
Change-Id: I46cb4e1afd6392805f359e14554ebc17d538bcba
Reviewed-on: https://go-review.googlesource.com/c/go/+/431956
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
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Rework the mechanism for passing a list of output files from cmd/go to
cmd/cover when running new-style package-scope coverage
instrumentation (-pkgcfg mode). The old scheme passed a single string
with all output files joined together with os.PathListSeparator, but
this scheme is not viable on plan9, where strings containing the
separator character are not permitted when running exec.Command().
Instead, switch cmd/cover to use an arguments file (a file containing
a list of names) to specify names of instrumented output files. This
fixes the cmd/cover test failures on the plan9 builders.
Updates #51430.
Change-Id: I919f5e0a79500e28648fb9177225a9b938e4fdee
Reviewed-on: https://go-review.googlesource.com/c/go/+/436675
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
If a cycle has length 1, don't enumerate the single cycle entry;
instead just mention "refers to itself". For instance, for an
invalid recursive type T we now report:
invalid recursive type: T refers to itself
instead of:
invalid recursive type T
T refers to
T
Adjust tests to check for the different error messages.
Change-Id: I5bd46f62fac0cf167f0d0c9a55f952981d294ff4
Reviewed-on: https://go-review.googlesource.com/c/go/+/436295
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Robert Griesemer <gri@google.com>
Add hooks/apis to support writing of coverage counter data and
meta-data under user control (from within an executing "-cover"
binary), so as to provide a way to obtain coverage data from programs
that do not terminate. This patch also adds a hook for clearing the
coverage counter data for a running program, something that can be
helpful when the intent is to capture coverage info from a specific
window of program execution.
Updates #51430.
Change-Id: I34ee6cee52e5597fa3698b8b04f1b34a2a2a418f
Reviewed-on: https://go-review.googlesource.com/c/go/+/401236
Reviewed-by: David Chase <drchase@google.com>
Some of the unit tests in Go's "cmd" tree wind up building a separate
copy of the tool being tested, then exercise the freshly built tool as
a way of doing regression tests. The intent is to make sure that "go
test" is testing the current state of the source code, as opposed to
whatever happened to be current when "go install <tool>" was last run.
Doing things this way is unfriendly for coverage testing. If I run "go
test -cover cmd/mumble", and the cmd/mumble test harness builds a
fresh copy of mumble.exe, any runs of that new executable won't
generate coverage data.
This patch updates the test harnesses to use the unit test executable
as a stand-in for the tool itself, so that if "go test -cover" is in
effect, we get the effect of building the tool executable for coverage
as well. Doing this brings up the overall test coverage number for
cmd/cover quite dramatically:
before change:
$ go test -cover .
ok cmd/cover 1.100s coverage: 1.5% of statements
after change:
$ go test -cover .
ok cmd/cover 1.299s coverage: 84.2% of statements
Getting this to work requires a small change in the Go command as
well, to set GOCOVERDIR prior to executing a test binary.
Updates #51430.
Change-Id: Ifcf0ea85773b80fcda794aae3702403ec8e0b733
Reviewed-on: https://go-review.googlesource.com/c/go/+/404299
Reviewed-by: Bryan Mills <bcmills@google.com>
Add a testpoint to cover support routines used to help
implement "go test -cover".
Change-Id: Ic28bf884a4e0d2c0a6d8fd04fc29c0c949227f21
Reviewed-on: https://go-review.googlesource.com/c/go/+/432315
Reviewed-by: Bryan Mills <bcmills@google.com>
Change-Id: I022a221e2d73cd8c70e8e04b7046c388748646a5
Reviewed-on: https://go-review.googlesource.com/c/go/+/435696
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Change-Id: Ic977026a99a825954117902051e59928de9ccbdb
Reviewed-on: https://go-review.googlesource.com/c/go/+/435947
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Run-TryBot: xie cui <523516579@qq.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Change-Id: I97b5592c678c350fd77069d7c40a98864733707a
Reviewed-on: https://go-review.googlesource.com/c/go/+/435946
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Change-Id: I6007cc6363e22ffa5f9a8f0441a642fd85127397
Reviewed-on: https://go-review.googlesource.com/c/go/+/435945
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Run-TryBot: Cherry Mui <cherryyz@google.com>
Change-Id: Iaa623dae50ccae36ad44af25899c6453b6108046
Reviewed-on: https://go-review.googlesource.com/c/go/+/435944
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Change-Id: If08ce3f8534f5fb7ce97ec124bfeff937e65f63b
Reviewed-on: https://go-review.googlesource.com/c/go/+/435943
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Change-Id: I62f38aa07e9c6e2f0947d23adc7a1b453277c790
Reviewed-on: https://go-review.googlesource.com/c/go/+/435942
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Change-Id: Ieb8fb7c623ecd8b9ddd15cdb6eb2c6326a9bbd3b
Reviewed-on: https://go-review.googlesource.com/c/go/+/435941
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Change-Id: Idbade74025bddb26ec3c10527de5af5dc2b8c1cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/435940
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Use a separate channel to report the final error of the copying
goroutines, receiving a value only when all of the copying goroutines
have completed. In a followup change (CL 401835), that will allow
waiters to select on goroutine completion alongside other events (such
as Context cancellation).
Also mildly refactor the watchCtx helper method so that its structure
better matches what will be needed to implement WaitDelay.
For #50436.
Change-Id: I54b3997fb6931d204814d8382f0a388a67b520f1
Reviewed-on: https://go-review.googlesource.com/c/go/+/435995
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>
This fixes a bug introduced in CL 401834 in which calling Start twice
with pipes attached to a command would spuriously close those pipes
when returning the error from the second Start call.
For #50436.
Change-Id: I3563cc99c0a0987752190fef95da3e9927a76fda
Reviewed-on: https://go-review.googlesource.com/c/go/+/436095
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Auto-Submit: Bryan Mills <bcmills@google.com>
Add a slightly expanded version of the Decoder type comment to the top
level package doc, which explains that this package is not designed
to be hardened against adversarial inputs.
Change-Id: I8b83433838c8235eb06ded99041fdf726c811ee5
Reviewed-on: https://go-review.googlesource.com/c/go/+/436096
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Run-TryBot: Roland Shoemaker <roland@golang.org>
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Reviewed-by: Damien Neil <dneil@google.com>
There were many more uses of the variable name "cause" than "reason"
to hold error message details. Consistently use "cause" throughout.
Accordingly, s/MissingMethodReason/MissingMethodCause/.
Change-Id: I171d784faabc66a4c58ba8944784204687595203
Reviewed-on: https://go-review.googlesource.com/c/go/+/435418
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
This matches what go/types and types2 report and it also matches
the compiler errors reported for some related shift problems.
For #55326.
Change-Id: Iee40e8d988d5a7f9ff2c49f019884d02485c9fdf
Reviewed-on: https://go-review.googlesource.com/c/go/+/436177
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
This is close to what the compiler used to say, except now we say
"as T value" rather than "as type T" which is closer to the truth
(we cannot use a value as a type, after all). Also, place the primary
error and the explanation (cause) on a single line.
Make respective (single line) adjustment to the matching "cannot
convert" error.
Adjust various tests.
For #55326.
Change-Id: Ib646cf906b11f4129b7ed0c38cf16471f9266b88
Reviewed-on: https://go-review.googlesource.com/c/go/+/436176
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
This matches current compiler behavior.
For #55326.
Change-Id: I7197cf4ce21e614291a1a2e1048dd78d0a232b64
Reviewed-on: https://go-review.googlesource.com/c/go/+/436175
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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Run-TryBot: Robert Griesemer <gri@google.com>
This change causes the parser to record the positions of the first
and last character in the file in new ast.File fields FileStart
and FileEnd.
The behavior of the existing Pos() and End() methods,
which record the span of declarations, must remain unchanged
for compatibility.
Fixesgolang/go#53202
Change-Id: I250b19e69f41e3590292c3fe6dea1943ec98f629
Reviewed-on: https://go-review.googlesource.com/c/go/+/427955
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Alan Donovan <adonovan@google.com>
Auto-Submit: Alan Donovan <adonovan@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Most tests will be skipped anyway because 'go build' is not available,
but this ensures cmd will be build tested by TryBots for js/wasm.
For #25911
For #35220
For #54219
Change-Id: I09c75905c36311810eb1ae75eeee2fa6102c1c0d
Reviewed-on: https://go-review.googlesource.com/c/go/+/435237
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
The existing implementation can call to T.Setenv in T.Run even after
calling to T.Parallel, so I changed it to cause a panic in that case.
Fixes#55128
Change-Id: Ib89d998ff56f00f96a5ca218af071bd35fdae53a
Reviewed-on: https://go-review.googlesource.com/c/go/+/431101
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
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Auto-Submit: Bryan Mills <bcmills@google.com>
These relocations are produced by clang/llvm.
Change-Id: I4820e7ed805d1b7341023b263c167a285ca32cf5
Reviewed-on: https://go-review.googlesource.com/c/go/+/431755
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Joel Sing <joel@sing.id.au>
TryBot-Result: Gopher Robot <gobot@golang.org>
This CL removes some opcode placeholders that do not correspond
to any existing instructions and hence create confusion. Some
instructions that are no longer valid like LDMX are also removed.
Any references to this instruction in ISA 3.0 are considered
as documentation errata.
Change-Id: Ib71a657099723bbe1db88873233ee573b5c42fe7
Reviewed-on: https://go-review.googlesource.com/c/go/+/429860
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Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Archana Ravindar <aravind5@in.ibm.com>
In CL 429035 Keith suggested removing some
rules that were covered by generic rules. This
follows up on that comment.
Change-Id: I57b6c9ae0cd85f33a0eb2fef8356575d3d7820fb
Reviewed-on: https://go-review.googlesource.com/c/go/+/430417
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-by: Paul Murphy <murp@ibm.com>
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Reviewed-by: Keith Randall <khr@golang.org>
If GOEXPERIMENT=coverageredesign is in effect, introduce a new
top-level '-cover' option to "go build" to turn on new-style hybrid
code coverage instrumentation. Similarly, use the new instrumentation
for "go test -cover".
The main effects of "-cover" under the hood are to instrument files at
the package level using cmd/cover and to pass additional options to
the compiler when building instrumented packages.
The previous workflow for "go tool -cover mypkg" would expand to a
series of "go tool cover" commands (one per file) followed by a single
package compilation command to build the rewritten sources.
With the new workflow, the Go command will pass all of the Go files in
a package to the cover tool as a chunk (along with a config file
containing other parameters), then the cover tool will write
instrumented versions of the sources along with another "output"
config with info on coverage variable names for the the compiler. The
Go command will then kick off the compiler on the modified source
files, also passing in the config file generated by cmd/cover.
Updates #51430.
Change-Id: Id65621ff6a8c70a30168c1412c2d6f805ff3b9e7
Reviewed-on: https://go-review.googlesource.com/c/go/+/355452
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Run-TryBot: Than McIntosh <thanm@google.com>
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Refactor references to "a.Package" in Builder.build to be consistent,
e.g. all via the "p" helper variable. No change in functionality, this
is just intended to make the code more readable/consistent (since
prior to this point we had a random mix of "p" and "a.Package").
Change-Id: Ifea5ff9b314c39a0cf6e688511907d08cc56c603
Reviewed-on: https://go-review.googlesource.com/c/go/+/424819
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Reviewed-by: Bryan Mills <bcmills@google.com>
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Add a new hook to allow script tests to check whether a specific
GOEXPERIMENT is enabled.
Updates #51430.
Change-Id: Icdf39f845ff2c8b10c634d49e9c27bc90e7984f8
Reviewed-on: https://go-review.googlesource.com/c/go/+/402174
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Add a new mode of coverage instrumentation that works as a hybrid
between purely tool-based and purely compiler-based. The cmd/cover
tool still does source-to-source rewriting, but it also generates
information to be used by the compiler to do things like marking
meta-data vars as read-only.
In hybrid mode, the cmd/cover tool is invoked not on a single source
file but on all the files in a package, and is passed a config file
containing the import path of the package in question, along with
other parameters needed for the run. It writes a series of modified
files and an output config file to be passed to the compiler when
compiling the modified files.
Not completely useful by itself, still needs a corresponding set of
changes in the Go command and in the compiler.
Updates #51430.
Change-Id: I0fcbd93a9a8fc25064187b159152486a2549ea54
Reviewed-on: https://go-review.googlesource.com/c/go/+/395896
Run-TryBot: Than McIntosh <thanm@google.com>
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This patch fleshes out the runtime support for emitting coverage data
at the end of a run of an instrumented binary. Data is emitted in the
form of a pair of files, a meta-out-file and counter-data-outfile,
each written to the dir GOCOVERDIR. The meta-out-file is emitted only
if required; no need to emit again if an existing meta-data file with
the same hash and length is present.
Updates #51430.
Change-Id: I59d20a4b8c05910c933ee29527972f8e401b1685
Reviewed-on: https://go-review.googlesource.com/c/go/+/355451
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Add a set of helper packages for reading collections of related
meta-data and counter-data files ("pods") produced by runs of
coverage-instrumented binaries, and a new tool program (cmd/covdata)
for dumping and/or manipulating coverage data files.
Currently "go tool covdata" subcommands include 'merge', 'intersect',
'percent', 'pkglist', 'subtract', 'debugdump', and 'textfmt'
(conversion to the legacy "go tool cover" format).
Updates #51430.
Change-Id: I44167c578f574b4636ab8726e726388531fd3258
Reviewed-on: https://go-review.googlesource.com/c/go/+/357609
Run-TryBot: Than McIntosh <thanm@google.com>
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Matches compiler behavior and is consistent with what we do with other
binary operations.
While at it, also use parentheses rather than a colon for a couple of
errors caused by not having a core type.
For #55326.
Change-Id: I0a5cec1a31ffda98d363e5528791965a1ccb5842
Reviewed-on: https://go-review.googlesource.com/c/go/+/435618
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
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Updates #53466
Change-Id: I08ea279c905e265a579b6b3e23aee012165beaee
Reviewed-on: https://go-review.googlesource.com/c/go/+/431658
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Dmitri Goutnik <dgoutnik@gmail.com>
Updates #53466
Change-Id: I17a41adb93c22fa84a7bdcec9d8c65001c5a8ba9
Reviewed-on: https://go-review.googlesource.com/c/go/+/431657
Reviewed-by: Dmitri Goutnik <dgoutnik@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Meng Zhuo <mzh@golangcn.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Change-Id: Ic73d667a98df3f2d1705a67e7e8625c6ba65cc0a
Reviewed-on: https://go-review.googlesource.com/c/go/+/435284
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Change-Id: Ia96ddd520a7bd2fd53bff55315c6fac04ae96a2f
Reviewed-on: https://go-review.googlesource.com/c/go/+/435282
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
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Change-Id: I3218b1e3f8869f579facddb29471df13c835dc66
Reviewed-on: https://go-review.googlesource.com/c/go/+/435281
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Updates #53466
Change-Id: I42ca5f1d0f20b5ecfcfba70d298566b6c851fefc
Reviewed-on: https://go-review.googlesource.com/c/go/+/431656
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Meng Zhuo <mzh@golangcn.org>
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Reviewed-by: Dmitri Goutnik <dgoutnik@gmail.com>
Fix the coversion between our sentinel salt length variables and the
BoringSSL versions in SignRSAPSS. We previously set -1 (hash length
equals salt length) when 0 was passed when we should've been setting
-2. This now matches the conversion that happens in VerifyRSAPSS. Also
adds a note documenting why we do this.
Additionally in non-Boring mode, properly handle passing of salt lengths
with a negative value which aren't one of the magic constants, returning
an error instead of panicking.
See https://commondatastorage.googleapis.com/chromium-boringssl-docs/rsa.h.html#RSA_sign_pss_mgf1
for the BoringSSL docs.
Fixes#54803
Change-Id: Id1bd14dcf0ef4733867367257830ed43e25ef882
Reviewed-on: https://go-review.googlesource.com/c/go/+/426659
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When a comparison is invalid due to mismatched types, we only know
when we see the 2nd operand; so use that operand's position for the
error message. This matches compiler behavior.
For #55326.
Change-Id: I79450756bbdd2b4bb90ed4e960a451be0197b186
Reviewed-on: https://go-review.googlesource.com/c/go/+/435555
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An SHT_NOBITS section contains no bytes and occupies no space in the
file. This change makes it return an error on reading from this section
so that it will force the caller to check for an SHT_NNOBITS section.
We have considered another option to return "nil, nil" for the Data
method. It's abandoned because it might lead a program to simply do
the wrong thing, thinking that the section is empty.
Please note that it breaks programs which expect a byte slice with the
length described by the sh_size field. There are two reasons to
introduce this breaking change: 1. SHT_NOBITS means no data and it's
unnecessary to allocate memory for it; 2. it could result in an OOM if
the file is corrupted and has a huge sh_size.
Fixes#54967.
Change-Id: I0c3ed4e097214fe88413d726a89122105ad45d4f
GitHub-Last-Rev: 994c12d9da
GitHub-Pull-Request: golang/go#54994
Reviewed-on: https://go-review.googlesource.com/c/go/+/429601
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Change-Id: I40fdfbd5cfb9f5ccb80d55bca28ff9ba1ec490f3
Reviewed-on: https://go-review.googlesource.com/c/go/+/435285
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Compromise between old compiler error "T.m redeclared in this block"
(where the "in this block" is not particularly helpful) and the old
type-checker error "method m already declared for type T ...".
In the case where we have position information for the original
declaration, the error message is "method T.m already declared at
<position>". The new message is both shorter and more precise.
For #55326.
Change-Id: Id4a7f326fe631b11db9e8030eccb417c72d6c7db
Reviewed-on: https://go-review.googlesource.com/c/go/+/435016
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This is a compromise of the error reported by the compiler (quotes
around field name removed) and the error reported by the type checkers
(added mention of struct type).
For #55326.
Change-Id: Iac4fb5c717f17c6713e90d327d39e68d3be40074
Reviewed-on: https://go-review.googlesource.com/c/go/+/434815
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
This matches current compiler behavior.
For #55326.
Change-Id: I9ebe2914323072b5454fb9af2d15c9dd2d711bad
Reviewed-on: https://go-review.googlesource.com/c/go/+/434735
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This matches current compiler behavior.
For #55326.
Change-Id: I660bd15f13a8d9eb00fafa937f8261e664b0e065
Reviewed-on: https://go-review.googlesource.com/c/go/+/433276
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This matches longstanding compiler behavior.
Also, for unused packages, report:
`"pkg" imported and not used`
`"pkg" imported as X and not used`
This matches the other `X declared and not used` errors.
For #55326.
Change-Id: Ie71cf662fb5f4648449c64fc51bede298a1bdcbf
Reviewed-on: https://go-review.googlesource.com/c/go/+/432557
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Remove OpPPC64LoweredMuluhilo as this operation can be done
more efficiently with MULHDU and MULLD directly. This has the
benefit of not needing to use tuple select operations, and giving
the scheduler more freedom to place these operations.
The primary reason to avoid using tuples here is to to avoid
suboptimal scheduling when carry ops (e.x ADDC/ADDE) are used in
the same block as 64->128b multiples. CL 432275 modifies the
scheduling priorities which may cause non-flag/non-carry generating
tuple ops to interfere with carry opcodes. Thus resulting in excess
saving and restoring of the XER register.
This allows CL 432275 to adjust the scheduling priorities without
having to workaround odd tuple scheduling behavior.
Change-Id: Id04ef009ec4b86416e5436f2b44ae1474e73720e
Reviewed-on: https://go-review.googlesource.com/c/go/+/434855
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This is to get better escape analysis for a frequently-allocated object.
Change-Id: I1942a4e1c3cd1f0fa870bc8433a0165c18ce9c75
Reviewed-on: https://go-review.googlesource.com/c/go/+/435336
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Partial overlaps can only happen for strict sub-pieces of larger arrays.
That's a much stronger condition than the current optimization rules.
Update #54467
Change-Id: I11e539b71099e50175f37ee78fddf69283f83ee5
Reviewed-on: https://go-review.googlesource.com/c/go/+/433056
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Prior to this change, the scanner, in ScanComments mode, would emit
the implicit SEMICOLON token generated by a newline ahead of any
immediately preceding comment "tokens". For example:
foo /*a*/ /*b*/ /*c*/ \n => [IDENT SEMICOLON COMMENT COMMENT COMMENT]
Now, tokens and comments are emitted by the scanner in lexical order
of their start position. SEMICOLON tokens corresponding to newlines
always have the position of the newline (even in the special case
in which the newline is in the middle of a general comment /*\n*/).
The scanner no longer needs to look ahead, possibly across multiple
comments, for a newline, when it encounters a comment.
The scanner semicolon tests have been rewritten to be less magical.
The parser must now expect line comments before an implicit semicolon.
Line comments for an explicit semicolon still appear after.
The new assertions in the parser TestLeadAndLineComments are
not changes to behavior.
Fixesgolang/go#54941
Change-Id: Iffe97fd10e9e0b52882da8659307698ccb31c093
Reviewed-on: https://go-review.googlesource.com/c/go/+/429635
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Change-Id: Ic21d979da8be1a6047b9bcd65b5ee71ca2ef7548
Reviewed-on: https://go-review.googlesource.com/c/go/+/435278
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Update the linker's XCOFF writer to handle coverage counter sections
properly; they need to be treated as bss, not data. Fixes a problem
with the aix-ppc64 builder introduced in CL 401235), e.g.
"runtime.covctrs: A symbol with type XTY_SD must be in a .text or
.data section".
Updates #51430.
Change-Id: I3fc385a37e2549c46cc7cc3b4718af989a36752a
Reviewed-on: https://go-review.googlesource.com/c/go/+/435335
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PPC64 ELFv2 uses the st_other field of a symbol to specify an offset
from the global entry point to its local entry point. Similarly, some
values (i.e 1) may also require additional linker support which is
missing today.
For now, generate an error if we encounter unsupported local entry
values on PPC64, and update the Localentry values to use bytes, not
32b instruction words.
Similarly, ELFv2 1.5 also updates the wording of values 2-6. They
now map to a specific number of bytes.
Change-Id: Id1b71c3b0fea982bdcfb7eac91d9f93e04ae43f9
Reviewed-on: https://go-review.googlesource.com/c/go/+/431876
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Change-Id: I3f2dae17496b5b4efbdc022802f941a616abd87a
Reviewed-on: https://go-review.googlesource.com/c/go/+/435276
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In preparation for encoding it in a more efficient way.
Change-Id: I299dd2befc3d07107a1b7b49225bbb9f2e48a343
Reviewed-on: https://go-review.googlesource.com/c/go/+/432896
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The spec https://refspecs.linuxfoundation.org/elf/gabi4+/ch4.eheader.html
states:
1. e_shnum: If the number of sections is greater than or equal to
SHN_LORESERVE (0xff00), this member has the value zero and the actual
number of section header table entries is contained in the sh_size
field of the section header at index 0.
2. e_shstrndx: If the section name string table section index is
greater than or equal to SHN_LORESERVE (0xff00), this member has the
value SHN_XINDEX (0xffff) and the actual index of the section name
string table section is contained in the sh_link field of the section
header at index 0.
This CL makes these changes to support files with >= 0xff00 sections:
1. if shoff > 0 && shnum == 0, read sh_size from the initial section
header entry as shnum.
2. if shstrndx == SHN_XINDEX, read sh_link from the initial section
header entry as shstrndx.
It returns an error if the type of the initial section is not SHT_NULL.
A file with >= 0xff00 sections is too big to include in the repository,
so the test case constructs one on the fly, with some of the sections
zeroed out.
While here, remove the unnecessary use of reflect.DeepEqual in the test.
Fixes#55294.
Change-Id: I15ec43612c7cce6e8decfe4e81da3a5b16de47f7
GitHub-Last-Rev: 797c16480b
GitHub-Pull-Request: golang/go#55295
Reviewed-on: https://go-review.googlesource.com/c/go/+/432255
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Auto-Submit: Ian Lance Taylor <iant@google.com>
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Relocate cmd/go's search.MatchPattern helper routine to a new package
in cmd/internal from its current location, as to allow it to be used
in other tools that accept package pattern command line flags. No
change in functionality along the way.
Updates #51430.
Change-Id: I726e974ccd66a055bb5a94497b36b8d68d47cad1
Reviewed-on: https://go-review.googlesource.com/c/go/+/432757
Reviewed-by: Bryan Mills <bcmills@google.com>
Extra Ms may lead to the "no consistent ordering of events possible" error when parsing trace file with cgo enabled, since:
1. The gs in the extra Ms may be in `_Gdead` status while starting trace by invoking `runtime.StartTrace`,
2. and these gs will trigger `traceEvGoSysExit` events in `runtime.exitsyscall` when invoking go functions from c,
3. then, the events of those gs are under non-consistent ordering, due to missing the previous events.
Add two events, `traceEvGoCreate` and `traceEvGoInSyscall`, in `runtime.StartTrace`, will make the trace parser happy.
Fixes#29707
Change-Id: I2fd9d1713cda22f0ddb36efe1ab351f88da10881
GitHub-Last-Rev: 7bbfddb81b
GitHub-Pull-Request: golang/go#54974
Reviewed-on: https://go-review.googlesource.com/c/go/+/429858
Run-TryBot: Michael Pratt <mpratt@google.com>
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Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: xie cui <523516579@qq.com>
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Auto-Submit: Michael Pratt <mpratt@google.com>
For #46746
Change-Id: Ic7a31ddf7cd6bf6dd0db6b9eb3fee68fc180f72e
Reviewed-on: https://go-review.googlesource.com/c/go/+/435277
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
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No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
Fixes#53529
Change-Id: I318c87795e545fe5a006d16b4d361cd4bf5d502d
Reviewed-on: https://go-review.googlesource.com/c/go/+/434936
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Fixes#55835
Change-Id: I6109bab2941b859e8cfef22f65a6a3a5f977a8d7
Reviewed-on: https://go-review.googlesource.com/c/go/+/433835
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The image/gif.FuzzDecode takes an excessive amount of time to run on various
builders - skip these in testing short mode. Likewise for image/jpeg and
image/png.
Fixes#55839
Change-Id: I1049d06b9dcbbc7dbc4f53d3c49b64e2254eabbd
Reviewed-on: https://go-review.googlesource.com/c/go/+/435175
Reviewed-by: Roland Shoemaker <roland@golang.org>
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Reviewed-by: Bryan Mills <bcmills@google.com>
Change-Id: I63b2af955e2ada6d20e72c10797576d93bbc7e71
Reviewed-on: https://go-review.googlesource.com/c/go/+/435135
Reviewed-by: Ian Lance Taylor <iant@google.com>
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1. replace [0-9] with \d in regexps
2. replace [a-zA-Z0-9_] with \w in regexps
Change-Id: I9e260538252a0c1071e76aeb1c5f885c6843a431
GitHub-Last-Rev: 286e1a4619
GitHub-Pull-Request: golang/go#54874
Reviewed-on: https://go-review.googlesource.com/c/go/+/428435
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Add an additional guard to ensure that we don't try to run the "-race"
variant of the exit hooks test when CGO is explicitly turned off via
CGO_ENABLED=0 (this fixes a failure on the no-cgo builder caused
by CL 354790).
Change-Id: I9dc7fbd71962e9a098916da69d9119a753f27116
Reviewed-on: https://go-review.googlesource.com/c/go/+/434935
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Use the newly defined time.Datetime constant instead of a string literal.
Updates #52746
Change-Id: I2722415ecc67fd2adfdab2eaba3298774032bff3
GitHub-Last-Rev: 65d3aa9bc2
GitHub-Pull-Request: golang/go#55833
Reviewed-on: https://go-review.googlesource.com/c/go/+/433277
Run-TryBot: Joseph Tsai <joetsai@digital-static.net>
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Adds a -coveragecfg=<configfile> command line option to the compiler
to help support a cooperative "tool and compiler" mode for coverage
instrumentation. In this mode the cmd/cover tool generates most of the
counter instrumentation via source-to-source rewriting, but the
compiler fixes up the result if passed the "-coveragecfg" option. The
fixups include:
- reclassifying counter variables (special storage class)
- marking meta-data variables are read-only
- adding in an init call to do registation
Updates #51430.
Change-Id: Iead72b85209725ee044542374465f118a3ee72e0
Reviewed-on: https://go-review.googlesource.com/c/go/+/395895
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
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Add a new "coverage counter" classification for variables to be used
for storing code coverage counter values (somewhat in the same way
that we identify fuzzer counters). Tagging such variables allows us to
aggregate them in the linker, and to treat updates specially.
Updates #51430.
Change-Id: Ib49fb05736ffece98bcc2f7a7c37e991b7f67bbb
Reviewed-on: https://go-review.googlesource.com/c/go/+/401235
Reviewed-by: David Chase <drchase@google.com>
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Updates #42537
Change-Id: Ice23d7d36bbede27551cbc086119694f6a3b5e4a
GitHub-Last-Rev: 0d65208313
GitHub-Pull-Request: golang/go#55347
Reviewed-on: https://go-review.googlesource.com/c/go/+/432895
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
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This matches the compiler's long-standing behavior.
For #55326.
Change-Id: Icd946b031b1b6e65498fb52bceb4a53807732463
Reviewed-on: https://go-review.googlesource.com/c/go/+/432556
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This matches the compiler's long-standing behavior.
For #55326.
Change-Id: I90696a11f0b7d1f4be95a4b9a6f01844df2a2347
Reviewed-on: https://go-review.googlesource.com/c/go/+/432555
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The previous wording was unclear and seemingly contradictory.
Change-Id: I0781dc4525948f4e8e5698271362a82387688f81
GitHub-Last-Rev: c1e032fa94
GitHub-Pull-Request: golang/go#53516
Reviewed-on: https://go-review.googlesource.com/c/go/+/413774
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Add a new API (not public/exported) for registering a function with
the runtime that should be called when program execution terminates,
to be used in the new code coverage re-implementation. The API looks
like
func addExitHook(f func(), runOnNonZeroExit bool)
The first argument is the function to be run, second argument controls
whether the function is invoked even if there is a call to os.Exit
with a non-zero status. Exit hooks are run in reverse order of
registration, e.g. the first hook to be registered will be the last to
run. Exit hook functions are not allowed to panic or to make calls to
os.Exit.
Updates #51430.
Change-Id: I906f8c5184b7c1666f05a62cfc7833bf1a4300c4
Reviewed-on: https://go-review.googlesource.com/c/go/+/354790
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Add support to the runtime for registering coverage-instrumented
packages, using a new hook that can be called from the init function
of an instrumented package. The hook records the meta-data symbol for
the package (chaining it onto a list), and returns a package ID to be
used to identify functions in the package. This new hook is not yet
called; that will be added in a subsequent patch. The list of
registered meta-data objects will be used (again in a future patch) as
part of coverage data file writing.
Special handling is required for packages such as "runtime" or
"internal/cpu", where functions in the package execute before the
package "init" func runs. For these packages hard-code the package ID,
then record the position of the package in the overall list so that we
can fix things up later on.
Updates #51430.
Change-Id: I6ca3ddf535197442a2603c6d7a0a9798b8496f40
Reviewed-on: https://go-review.googlesource.com/c/go/+/401234
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Add utilities for reading and writing of counter data files as part of
the new code coverage implementation.
Trivia note: currently the contents of counter data files are emitted
in little-endian form, which for the counters is somewhat painful in
that we need to visit each counter value and properly encode it. It
might be better to instead emit counters in native endianity and then
teach the tools to decode properly in the case of an endianity
mismatch.
Updates #51430.
Change-Id: I124fdcb40fc339a48b64b35264bf24c3be50ddd4
Reviewed-on: https://go-review.googlesource.com/c/go/+/359403
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follow the TODO to use StructOf, this cl can save the used memory.
for example, old code alloc [128]*rtype for func with 65 arguments(in+out),
this cl change to alloc [65]*rtype to save memory.
Change-Id: I1494bb6b3524d0d46869c3f24a628fec88119d8b
Reviewed-on: https://go-review.googlesource.com/c/go/+/425314
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This matches long-standing compiler behavior.
For #55326.
Change-Id: Ic5aa0dfb08d035f2c33532cc463c73a55cc020a9
Reviewed-on: https://go-review.googlesource.com/c/go/+/433055
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
We need a better approach eventually, but this is ok for now.
In go/types, always use _UnsupportedFeature for unavailable
version-specific features.
Change-Id: I15b47e34eda167db3133bd481aa2f55cf3662c31
Reviewed-on: https://go-review.googlesource.com/c/go/+/433195
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Add a coverage meta-data decoder, which provides APIs for reading
encoded coverage meta-data and expanding it usable form. This package
is intended to be used in the coverage tooling that reads data files
emitted from coverage runs. Along with the new decoding package is a
unit test that runs the encode/decode paths together to check to make
sure that "decode(encode(X)) == X".
Updates #51430.
Change-Id: I81d27d8da0b2fcfa5039114a6e35a4b463d19b3c
Reviewed-on: https://go-review.googlesource.com/c/go/+/353454
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
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Add a new package with APIs for encoding coverage meta-data. This
provides support for accumulating information about each function
during the compilation process, and then encoding and emitting a
payload for a coverage meta-data symbol. Not yet connected to the
rest of the coverage machinery (that will appear in a later patch).
Updates #51430.
Change-Id: I61054ce87f205b25fb1bfedaa740fd7425c34de4
Reviewed-on: https://go-review.googlesource.com/c/go/+/353453
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Add a new "coverageredesign" GOEXPERIMENT (currently off by default),
for gating the use of the new code coverage design/implementation.
Updates #51430.
Change-Id: Ia61da869fcd0d61c6163f734e2fe5e3705f37a91
Reviewed-on: https://go-review.googlesource.com/c/go/+/395894
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to is an optional pointer to sockaddr, as written in the doc:
https://learn.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-wsasendto
For #55845
Change-Id: Ia685cec8d9bc9ff313f598db9d2213a1f409757a
Reviewed-on: https://go-review.googlesource.com/c/go/+/434535
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
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Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Before the change, "SliceCap((*int64)(nil), 1<<62)" returns 1<<62.
That's because "uintptr(c)*size" overflows and gives 0 which is less
than the "chunk". SliceCap should return -1 in this case.
Change-Id: I4e99224c8ac0fc72032c6be86d7318d33d083cd8
GitHub-Last-Rev: ca30bcce45
GitHub-Pull-Request: golang/go#55870
Reviewed-on: https://go-review.googlesource.com/c/go/+/434335
Reviewed-by: Ian Lance Taylor <iant@google.com>
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The pipes pumped by goroutines can be closed as soon as their
respective goroutines are done.
The pipes pumped by user code, however, are documented to be closed in
Wait. When we add the WaitDelay field, it isn't obvious that we should
terminate the user-pumped pipes when the WaitDelay expires, since Wait
itself isn't going to wait for those user-controlled goroutines to
complete.
(It's a bit more complicated than that because the documentation
currently states that Wait must not be called while the pipes are
being read — but it isn't obvious to me that that advice is entirely
correct.)
For #50436.
Change-Id: I97909c91d2097fb75138a360747168c08609696d
Reviewed-on: https://go-review.googlesource.com/c/go/+/401894
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Change the childFiles field to a local variable, since it was
populated during Start and (as far as I can determine) has no purpose
after Start returns.
Rename closeAfterStart and closeAfterWait to childIOFiles and
parentIOPipes respectively. That makes their contents clearer, and also
helps to clarify what should happen on error (when, for example, Wait
shouldn't be called at all).
Use a deferred call instead of individual calls to close child (and,
if necessary, pipe) FDs after Start. That helps to clarify the
invariants around when they are closed, and also makes the function a
bit more robust for future refactoring.
Also nil out the slices containing the file closers so that they can
be collected earlier.
This CL is intended as a pure refactor in preparation for #50436.
Change-Id: I05d13fa91d539b95b84b2ba923c1733f9a6203e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/401834
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Deduplicate code for parsing system registers - this matches what is done
in golang.org/x/sys/cpu.
Change-Id: If3524eb2e361179c68678f8214230d7068fe4c60
Reviewed-on: https://go-review.googlesource.com/c/go/+/422217
Reviewed-by: Meng Zhuo <mzh@golangcn.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Joel Sing <joel@sing.id.au>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
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using Type.Comparable to simplify the Value.Comparable,
and return true directly when exit the for loop of kind == array and elements type is interface or array or struct.
Change-Id: Ib0b06a70642ba24c9215c69e7d619960fbeeed90
Reviewed-on: https://go-review.googlesource.com/c/go/+/426457
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Even though there isn't much point in building cmd/go for js/wasm given
it relies on executing sub-processes, this change is trivial enough and
makes cmd/go build for js/wasm again.
Fixes#54219
Change-Id: I91e3adec0f31a4e261af89b4cc829711828ac2ed
Reviewed-on: https://go-review.googlesource.com/c/go/+/433480
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Last use was removed by CL 240607.
Change-Id: Icfe9e477c6035823bd676a2ff28e1ac202dd991e
Reviewed-on: https://go-review.googlesource.com/c/go/+/431662
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Fixes#55845
Change-Id: If30263b7d34829c40e6606846115ec520f351f2c
Reviewed-on: https://go-review.googlesource.com/c/go/+/433504
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Fix up the package test harness to avoid errors of the form
go_test.go:NNN: internal testsuite error: path(".") with no tempdir
when the "-testwork" flag is passed when running "go test".
Fixes#55874.
Change-Id: I76cc39902f51a62cb4cd0da8794b97d620fb4873
Reviewed-on: https://go-review.googlesource.com/c/go/+/434455
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This avoids allocating an overly large slice for corrupt input.
Change the saferio.SliceCap function to take a pointer to the element type,
so that we can handle slices of interface types. This revealed that a
couple of existing calls were actually incorrect, passing the slice type
rather than the element type.
No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
Fixes#55338
Change-Id: I3c1724183cc275d4981379773b0b8faa01a9cbd2
Reviewed-on: https://go-review.googlesource.com/c/go/+/433296
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
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For #55326
Change-Id: I3d0ff7f820f7b2009d1b226abf701b2337fe8cbc
Reviewed-on: https://go-review.googlesource.com/c/go/+/432635
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Reviewed-by: Robert Griesemer <gri@google.com>
Query parameter smuggling occurs when a proxy's interpretation
of query parameters differs from that of a downstream server.
Change ReverseProxy to avoid forwarding ignored query parameters.
Remove unparsable query parameters from the outbound request
* if req.Form != nil after calling ReverseProxy.Director; and
* before calling ReverseProxy.Rewrite.
This change preserves the existing behavior of forwarding the
raw query untouched if a Director hook does not parse the query
by calling Request.ParseForm (possibly indirectly).
Fixes#54663
Fixes CVE-2022-2880
Change-Id: If1621f6b0e73a49d79059dae9e6b256e0ff18ca9
Reviewed-on: https://go-review.googlesource.com/c/go/+/432976
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Use slice-to-array conversions in AddrFromSlice and
(*Addr).UnmarshalBinary. This allows allows to use AddrFrom16 and drop
the redundant ipv6Slice helper.
For #46505
Change-Id: I0e3a7d8825ad438115b7f23ee97cc74eec41a826
Reviewed-on: https://go-review.googlesource.com/c/go/+/432735
Reviewed-by: Damien Neil <dneil@google.com>
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Currently, for version errors, types2 adds the helpful hint
(-lang was set to go1.xx; check go.mod)
where 1.xx is the respective language version, to the error message.
This requires that the type checker knows that it was invoked by the
compiler, which is done through the Config.CompilerErrorMessages flag.
This change looks for version errors being returned by the type checker
and then adds the hint at that point, external to the type checker.
This removes a dependency on the Config.CompilerErrorMessages. Once
we have removed all dependencies on Config.CompilerErrorMessages we
can remove it.
For #55326.
Change-Id: I1f9b2e472c49fe785a2075e26c4b3d9b8fcdbf4d
Reviewed-on: https://go-review.googlesource.com/c/go/+/432559
Reviewed-by: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
Updates vet to permit errors with an Unwrap method returning []error
and multiple %w verbs in fmt.Errorf.
For #53435.
Change-Id: If097715f86c5a03ed606e6d4fb048e17b154b489
Reviewed-on: https://go-review.googlesource.com/c/go/+/433057
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A linear search through a list of 22 strings takes ~80ns.
A quick check for 3-4 byte strings reduces this check to 2ns
for a vast majority of inputs.
In the event of a name match, the new logic is either just
as fast (for "CON") or 10x faster (for "LPT9").
Change-Id: I412fa73beebd7c81dc95f9ed12c35ca1d5d6baf0
Reviewed-on: https://go-review.googlesource.com/c/go/+/433175
Reviewed-by: Damien Neil <dneil@google.com>
Run-TryBot: Joseph Tsai <joetsai@digital-static.net>
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Pprof's converter from legacy text format to protobuf format
assumes that if the alloc and inuse stats are equal, then what's
really going on is that the program makes no distinction, and it
reads them as a two-column profile: objects and bytes.
Most of the time, some sampled object has been freed, and alloc != inuse.
In that case, pprof reads the profile as a four-column profile, with
alloc_objects, alloc_bytes, inuse_objects, inuse_bytes.
The 2-column form causes problems in a few ways. One is that if
you are reading the proto form and expect samples with the 4-column
names, they're not there. Another is that pprof's profile merger insists
on having the same number of columns and same names. This means
that
pprof *.memprofile
works most of the time but fails if one of the memory profiles hit
the unlikely condition that alloc == inuse, since now its converted
form differs from the others.
Most programs should simply not be using this output form at all,
but cmd/compile and cmd/link still do, because x/tools/cmd/compilebench
reads some extra values from the text form that we have not yet added
to the proto form.
For the programs still writing this form, the easiest way to avoid the
column collapse issues is to ensure that the header never reports
alloc == inuse. The actual values in the header are ignored by pprof now,
except for the equality check (they should sum to the other values in the
file, so they are technically redundant). Because the actual values are not
used except for the equality check, we could hard-code different values
like 0 and 1, but just in case, to break as little as possible, this CL only
adjusts the values when they would otherwise be equal. In that case it
adds 1 to allocBytes. For most profiles, where alloc != inuse already, there
is no effect at all.
Change-Id: Ia563e402573d0f6eb81ae496645db27c08f9fe31
Reviewed-on: https://go-review.googlesource.com/c/go/+/432758
Reviewed-by: David Chase <drchase@google.com>
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Auto-Submit: Russ Cox <rsc@golang.org>
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For PIE binaries, the .gopclntab section doesn't have the usual
name, but .data.rel.ro.gopclntab. Try the relro version as well.
If both failed (e.g. for externally linked PIE binaries), try
runtime.pclntab symbol.
This should make cmd/objdump able to print the file/line
information for PIE binaries.
I attempted to do this a few years ago, but that wasn't enough,
because the pclntab itself contains dynamic relocations which are
not applied by the tool. As of Go 1.18 the pclntab is mostly
position independent and does not contain dynamic relocations, so
this should be possible now.
Fixes#17883.
Updates #46639.
Change-Id: I85dc3d50ffcc1a4b187a349479a6a162de1ab2b5
Reviewed-on: https://go-review.googlesource.com/c/go/+/227483
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After CL 22425, there're two optimizations for slice expr which are
never applied during walk pass:
s[i:len(s)]
s[i:j:cap(s)]
The order pass have already rewritten len/cap expression to use autotmp,
thus the same safe expression check will never fire. The code can now be
simplified by moving the only case left from reduceSlice to walkSlice,
then removing reduceSlice entirely.
Passes toolstash-check.
Change-Id: Ia8cfb15c8e96c186a214c17b42d0fee51b0d3a1c
Reviewed-on: https://go-review.googlesource.com/c/go/+/432695
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cmd/dist can't easily hard-code -buildvcs=false because not all
versions of cmd/go supported for bootstrapping recognize that flag.
However, we don't want to stamp the bootstrap binaries: the stamping
is redundant with the VERSION file writted during bootstrapping (which
is why it is normally omitted for standard-library packages and
commands), and it may also interfere with building the Go repo from a
source tarball or zip file.
Fixes#54852.
Change-Id: If223f094af137c4c202d6bf622619bd2da397ec4
Reviewed-on: https://go-review.googlesource.com/c/go/+/432435
Auto-Submit: Bryan Mills <bcmills@google.com>
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These tests are flaky; add some additional logging in hopes
it will aid in debugging.
For #53373
Change-Id: I971a2815f50932a9700ef8c2f684c5416951e6de
Reviewed-on: https://go-review.googlesource.com/c/go/+/432375
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
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RFC 7231 permits HEAD requests to contain a body, although it does
state there are no defined semantics for payloads of HEAD requests
and that some servers may reject HEAD requests with a payload.
Accept HEAD requests with a body.
Fix a bug where a HEAD request with a chunked body would interpret
the body as the headers for the next request on the connection.
For #53960.
Change-Id: I83f7112fdedabd6d6291cd956151d718ee6942cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/418614
Run-TryBot: Damien Neil <dneil@google.com>
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Pull in HTTP/2 fix needed for net/http test case.
f8f703f979 http2: accept HEAD requests with a body
For #53960
Change-Id: I59bbd83977daced5ed21ec5345af8cdb607e532e
Reviewed-on: https://go-review.googlesource.com/c/go/+/432197
Run-TryBot: Damien Neil <dneil@google.com>
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This commit adds an ASCII fast path to bytes/strings EqualFold that
roughly doubles performance when all characters are ASCII.
It also changes strings.EqualFold to use `for range` for the first
string since this is ~10% faster than using utf8.DecodeRuneInString for
both (see #31666).
Performance (similar results on arm64 and amd64):
name old time/op new time/op delta
EqualFold/Tests-10 238ns ± 0% 172ns ± 1% -27.91% (p=0.000 n=10+10)
EqualFold/ASCII-10 20.5ns ± 0% 9.7ns ± 0% -52.73% (p=0.000 n=10+10)
EqualFold/UnicodePrefix-10 86.5ns ± 0% 77.6ns ± 0% -10.37% (p=0.000 n=10+10)
EqualFold/UnicodeSuffix-10 86.8ns ± 2% 71.3ns ± 0% -17.88% (p=0.000 n=10+8)
Change-Id: I058f3f97a08dc04d65af895674d85420f920abe1
Reviewed-on: https://go-review.googlesource.com/c/go/+/425459
Reviewed-by: Ian Lance Taylor <iant@google.com>
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This is both simpler and more performant.
The need for fmt.fmtC to manually check for utf8.MaxRune
is subtle to avoid overflow when converting uint64 to rune,
so a test case was added to exercise this edge case.
Change-Id: I0f2e6cce91dcd4cc6b88190c29807ca1c58e999d
Reviewed-on: https://go-review.googlesource.com/c/go/+/412335
Auto-Submit: Joseph Tsai <joetsai@digital-static.net>
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On Linux a signal sent using tgkill will have si_code == SI_TKILL,
not SI_USER. Treat the two cases the same. Add a Linux-specific test.
Change the test to use the C pause function rather than sleeping
for a second, as that achieves the same effect.
This is a roll forward of CL 431255 which was rolled back in CL 431715.
This new version skips flaky tests on more systems, and marks a new method
nosplit.
Change-Id: Ibf2d3e6fc43d63d0a71afa8fcca6a11fda03f291
Reviewed-on: https://go-review.googlesource.com/c/go/+/432136
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When one has a []byte on hand, but desires to call the Parse function,
the conversion from []byte to string would allocate.
This occurs frequently through UnmarshalText and UnmarshalJSON.
This changes it such that the input string never escapes from
any of the Parse functions. Together with the compiler optimization
where the compiler stack allocates any string smaller than 32B
this makes most valid inputs for Parse(layout, string(input))
not require an allocation for the input string.
This optimization works well for most RFC3339 timestamps.
All timestamps with second resolution
(e.g., 2000-01-01T00:00:00Z or 2000-01-01T00:00:00+23:59)
or timestamps with nanosecond resolution in UTC
(e.g., 2000-01-01T00:00:00.123456789Z)
are less than 32B and benefit from this optimization.
Unfortunately, nanosecond timestamps with non-UTC timezones
(e.g., 2000-01-01T00:00:00.123456789+23:59)
do not benefit since they are 35B long.
Previously, this was not possible since the input leaked
to the error and calls to FixedZone with the zone name,
which causes the prover to give up and heap copy the []byte.
We fix this by copying the input string in both cases.
The advantage of this change is that you can now call Parse
with a []byte without allocating (most of the times).
The detriment is that the timezone and error path has an extra allocation.
Handling of timezones were already expensive (3 allocations and 160B allocated),
so the additional cost of another string allocation is relatively minor.
We should optimize for the common case, rather than the exceptional case.
Performance:
name old time/op new time/op delta
ParseRFC3339UTCBytes 54.4ns ± 1% 40.3ns ± 1% -25.91% (p=0.000 n=9+10)
Now that parsing of RFC3339 has been heavily optimized in CL 425197,
the performance gains by this optimization becomes relatively more notable.
Related to CL 345488.
Change-Id: I2a8a9cd6354b3bd46c2f57818ed2646a2e485f36
Reviewed-on: https://go-review.googlesource.com/c/go/+/429862
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Say "//go:build" instead of "// +build" in the package level godoc
comment.
Change-Id: I4700227a03197ffbe29e4de04d068b4c63bb5bf0
Reviewed-on: https://go-review.googlesource.com/c/go/+/431856
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Replace custom append functions in the hash functions with the implementation of the encoding/binary package that do the same thing.
The binary bigendian functions are already used in other parts of the code in the crypto package.
Change-Id: I76d2dbe143fc72a3b4ac06be312caf72bd71378a
GitHub-Last-Rev: 1c6c68279e
GitHub-Pull-Request: golang/go#55085
Reviewed-on: https://go-review.googlesource.com/c/go/+/431035
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For #45557
Change-Id: I56824135d86452603dd4ed4bab0e24c201bb0683
Reviewed-on: https://go-review.googlesource.com/c/go/+/426257
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Use "%w" instead of "%v" as format verb for error value in the NextPart
method. This way it will be possible to use common go error utilities
from std library when parsing from custom io.Readers.
This issue was discovered during attempts to use
http.Request.ParseMultipartForm together with http.MaxBytesHandler.
Change-Id: Idb82510fb536b66b51ed1d943737c4828f07c2f2
GitHub-Last-Rev: 8bc49c945c
GitHub-Pull-Request: golang/go#55133
Reviewed-on: https://go-review.googlesource.com/c/go/+/431675
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This CL adds some optimizaion rules:
1, Converts CMP to CMN, or vice versa, when comparing with a negative
number.
2, For equal and not equal comparisons, CMP can be converted to CMN in
some cases. In theory we could do the same optimization for LT, LE, GT
and GE, but need to account for overflow, this CL doesn't handle them.
There are no noticeable performance changes.
Change-Id: Ia49266c019ab7908ebc9510c2f02e121b1607869
Reviewed-on: https://go-review.googlesource.com/c/go/+/429795
Reviewed-by: Keith Randall <khr@golang.org>
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Run-TryBot: Eric Fang <eric.fang@arm.com>
get, at least, is called from typedmemclr which must not be interruptible.
These were previously nosplit by accident before CL 424395 (the only
call they had was an intrinsic, so they were leaf functions, so they had
no prologue). After CL 424395 they contained a call (in noinline builds),
thus had a prologue, thus had a suspension point.
I have no idea how we might test this.
This is another motivating use case for having a nosplitrec directive
in the runtime.
Fixes#55156Fixes#54779Fixes#54906Fixes#54907
Change-Id: I851d733d71bda7172c4c96e027657e22b499ee00
Reviewed-on: https://go-review.googlesource.com/c/go/+/431919
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Although I can't think of any reason to do this, it is possible for
a user-defined flag to implement IsBoolFlag but return "false".
This is nuts because checking the interface is satisfied should
obviously be sufficient, but the documentation kinda implies it's
not. And if you try this, you'll discover that the usage message
ignores the return value even though the rest of the package plays
nice. Bother.
So we fix it, as the fix is trivial: call the method when creating
the usage message.
Fixes#53473
Change-Id: I1ac80a876ad5626eebfc5ef6cb972cd3007afaad
Reviewed-on: https://go-review.googlesource.com/c/go/+/431102
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The nounified frontend currently tries to construct dictionaries that
correspond to invalid instantiations (i.e., instantiations T[X] where
X does not satisfy the constraints specified on T's type parameter).
As a consequence, we may fail to find method expressions needed by the
dictionary.
The real fix for this is to avoid creating those dictionaries in the
first place, because they should never actually be needed at runtime.
But that seems scary for a backport: we've repeatedly attempted to
backport generics fixes, which have fixed one issue but introduced
another.
This CL is a minimally invasive solution to #54225, which avoids the
ICE by instead skipping emitting the invalid dictionary. If the
dictionary ends up not being needed (which I believe will always be
the case), then the linker's reachability analysis will simply ignore
its absence.
Or worst case, if the dictionary *is* reachable somehow, we've simply
turned an ICE into a link-time missing symbol failure. That's not
great for user experience, but it seems like a small trade off to
avoid risking breaking any other currently working code.
Updates #54225.
Change-Id: Ic379696079f4729b1dd6a66994a58cca50281a84
Reviewed-on: https://go-review.googlesource.com/c/go/+/429655
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Replace two immediate operations with one, where possible.
Change-Id: Idc00e868155c9ca1d872aaaf70ea1f73e9eac4d6
Reviewed-on: https://go-review.googlesource.com/c/go/+/428497
Reviewed-by: Wayne Zuo <wdvxdr@golangcn.org>
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The use of SEQZ/SNEZ and SUB allows for other optimisations to be utilised,
particularly absorption into branch equality conditions.
Change-Id: I74e7d6a07a8decc1bdb651660c322bcc6eb6a10a
Reviewed-on: https://go-review.googlesource.com/c/go/+/428216
Run-TryBot: Joel Sing <joel@sing.id.au>
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The conversion T(x) is implemented as *(*T)(x). Accordingly, runtime
panic messages for (*T)(x) are made more general.
Fixes#46505.
Change-Id: I76317c0878b6a5908299506d392eed50d7ef6523
Reviewed-on: https://go-review.googlesource.com/c/go/+/430415
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Jenny Rakoczy <jenny@golang.org>
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In unified IR, local defined types are promoted to a global defined
type with a "vargen" suffix. These shouldn't actually be exposed to
go/types users, because they're only relevant within function bodies,
which go/types doesn't support importing.
Moreover, in the case of defined types that were declared within a
generic function, they can have ambient type parameters, which the
go/types importer doesn't know how to handle (because they shouldn't
be needed for that use case).
While here, prune the gcimporter_test.go skip list, because some of
the listed failures have actually been fixed and all of them are
specific to the Go 1.18 (nounified) frontend. They all work correctly
with GOEXPERIMENT=unified.
Fixes#55110.
Change-Id: I7dd8b86355d910dfed1d47edbad7695144c3f84d
Reviewed-on: https://go-review.googlesource.com/c/go/+/431495
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This test case already works with GOEXPERIMENT=unified, and it never
worked with Go 1.18 or Go 1.19. So this CL simply adds a regress test
to make sure it continues working.
Fixes#55101.
Change-Id: I7e06bfdc136ce124f65cdcf02d20a1050b841d42
Reviewed-on: https://go-review.googlesource.com/c/go/+/431455
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Resend of CL 315281 which was partially reverted by CL 354249 after the
original CL was suspected to cause test failures as reported in #48789.
It seems that both wait4 and wait6 lead to that particular deadlock, so
let's use wait6. That way we at least don't hit #13987 on netbsd.
Updates #13987
For #48789
For #50138
Change-Id: Iadc4a771217b7e9e821502e89afa07036e0dcb6f
Reviewed-on: https://go-review.googlesource.com/c/go/+/431855
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
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The type of the source and destination of a memmove call isn't
always accurate. It will always be a pointer (or an unsafe.Pointer), but
the base type might not be accurate. This comes about because multiple
copies of a pointer with different base types are coalesced into a single value.
In the failing example, the IData selector of the input argument is a
*[32]byte in one branch of the type switch, and a *[]byte in the other branch.
During the expand_calls pass both IDatas become just copies of the input
register. Those copies are deduped and an arbitrary one wins (in this case,
*[]byte is the unfortunate winner).
Generally an op v can rely on v.Type during rewrite rules. But relying
on v.Args[i].Type is discouraged.
Fixes#55122
Change-Id: I348fd9accf2058a87cd191eec01d39cda612f120
Reviewed-on: https://go-review.googlesource.com/c/go/+/431496
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Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
Change-Id: If36e9fd7d6b1993ca2d0d382e7fa52212170c798
Reviewed-on: https://go-review.googlesource.com/c/go/+/425481
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
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TestReadRequest_Bad's tests for leading whitespace in the first header
were also exercising the test verifying that a HEAD request has no
Content-Length. Also, the test intended to test a leading tab was
actually testing for a leading \t (literal backslash, literal t).
Change-Id: I05b46d05851b49bf75f1d1257c421b953b66ea9c
Reviewed-on: https://go-review.googlesource.com/c/go/+/428134
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
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Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Fixes#50770.
Change-Id: If0104883bb409ec85827fa5b570f68099ad4fd1d
Reviewed-on: https://go-review.googlesource.com/c/go/+/382734
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: hopehook <hopehook@golangcn.org>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
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Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Changes:
1. When e_shstrndx holds the value SHN_UNDEF (0), the file has no section
name string table. In this case, do not try to set section names .
2. e_shstrndx should point to an SHT_STRTAB section. If it does not, returns
an error.
Reference:
https://refspecs.linuxfoundation.org/elf/gabi4+/ch4.eheader.html
Updates #54967.
Change-Id: Ic8f228061d996fd7845dfa630719a1ba12d2bb60
GitHub-Last-Rev: aeb70ca8a0
GitHub-Pull-Request: golang/go#55001
Reviewed-on: https://go-review.googlesource.com/c/go/+/430155
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
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In module mode, we shouldn't handle packages under GOPATH any
differently from other packages. Clear GOPATH from the build context
before Importing to ensure that.
Fixes#37015.
Change-Id: I0203e25013716bca346fd4a67d80f1d05bbaea77
Reviewed-on: https://go-review.googlesource.com/c/go/+/412476
Reviewed-by: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
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Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
Change-Id: If09094e72161f2c5da9102706781524e32f87782
GitHub-Last-Rev: 89949bc6ee
GitHub-Pull-Request: golang/go#54855
Reviewed-on: https://go-review.googlesource.com/c/go/+/428234
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Now we have 8-byte alignment types on 32-bit system, so in some rare
case, e.g, generated wrapper for embedded interface, the function
argument may need more than 4 byte alignment. We could pad somehow, but
this is a rare case which makes it hard to ensure that we've got it right.
So relaxing the check for argument and return value region of the stack.
Fixes#54991
Change-Id: I34986e17a920254392a39439ad3dcb323da2ea8d
Reviewed-on: https://go-review.googlesource.com/c/go/+/431098
Reviewed-by: Keith Randall <khr@golang.org>
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Reviewed-by: Keith Randall <khr@google.com>
When SLTI/SLTIU is used with ANDI/ORI, it may be possible to determine the
outcome based on the values of the immediates. Resolve these cases.
Improves code generation for various shift operations.
While here, sort tests by architecture to improve readability and ease
future maintenance.
Change-Id: I87e71e016a0e396a928e7d6389a2df61583dfd8d
Reviewed-on: https://go-review.googlesource.com/c/go/+/428217
Reviewed-by: Wayne Zuo <wdvxdr@golangcn.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Jenny Rakoczy <jenny@golang.org>
Reviewed-by: Jenny Rakoczy <jenny@golang.org>
Run-TryBot: Joel Sing <joel@sing.id.au>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Jenny Rakoczy <jenny@golang.org>
CL 427615 causes failures when Len64 can't be inlined. It's unclear to
me why this wasn't a problem before, but it is used in sensitive
contexts and therefore really should be marked. Confirmed that the
failures in question reproduce without this change, and don't reproduce
with it.
Fixes#55117.
Change-Id: Ic3aa96af1420cc0c39551908d83f954725c712f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/431058
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
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If one (accidentally) uses Go 1.16 as bootstrap toolchain, we
want it to print the error
found packages main (build.go) and building_Go_requires_Go_1_17_or_later (notgo117.go)
But because some files lack old style build tags, Go 1.16 instead
prints
//go:build comment without // +build comment
Add the build tags to make the error message work.
Change-Id: Iaa9b3c12e71842bb40f8687b2fda2cc4cb15b113
Reviewed-on: https://go-review.googlesource.com/c/go/+/431057
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Reviewed-by: Ian Lance Taylor <iant@google.com>
On Linux a signal sent using tgkill will have si_code == SI_TKILL,
not SI_USER. Treat the two cases the same. Add a Linux-specific test.
Change the test to use the C pause function rather than sleeping
for a second, as that achieves the same effect.
Change-Id: I2a36646aecabcab9ec42ed9a048b07c2ff0a3987
Reviewed-on: https://go-review.googlesource.com/c/go/+/431255
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Reviewed-by: Michael Pratt <mpratt@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Return errors instead of calling t.Fatalf for timing-sensitive failure
modes. Scale the Sleep call to the timeout (so that it isn't too short
for the longer durations).
Fixes#54891.
Change-Id: I574e85e121becdda9ab8ee6bfd37c18a549d366d
Reviewed-on: https://go-review.googlesource.com/c/go/+/430955
Reviewed-by: Joel Sing <joel@sing.id.au>
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
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Fixes#51152
Change-Id: Ib366e733434b4bb60ac93e6e622d9ba50bfe4e26
GitHub-Last-Rev: e98220d62f
GitHub-Pull-Request: golang/go#54921
Reviewed-on: https://go-review.googlesource.com/c/go/+/428955
Reviewed-by: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
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