The memory might not be synchronized in a thread being woken up after a
semasleep. Using atomic instructions in noteclear function will force
this synchronisation.
Fixes#30189
Change-Id: If7432f29b2a1a56288231822db52f3f8d1d6dbfe
Reviewed-on: https://go-review.googlesource.com/c/go/+/163624
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Fixes#14683
Change-Id: I62c429e4fcc2f20a94d3db8c1f0ca587252c07a7
Reviewed-on: https://go-review.googlesource.com/c/go/+/174130
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Some repositories include tags like 'v1.0.0-rc.1+oryOS.9'.
If we were to allow such tags, they could become ambiguous: semantic
versioning defines versions that differ only in metadata to have equal
precedence, so if someone added a tag 'v1.0.0-rc.1+other' at a
different commit, then the version 'v1.0.0-rc.1' would become
ambiguous.
However, we should still allow those tags to be used to resolve
versions, and since we can even parse the underlying semantic version,
we can at least use that as the basis for a unique (and well-ordered)
pseudo-version.
Fixes#31713
Change-Id: I5035f76d74ead6e786c04a368595cb5e42d36f91
Reviewed-on: https://go-review.googlesource.com/c/go/+/176905
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Jay Conrod <jayconrod@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Before this commit, the two logically equivalent conditionals below would
produce different output:
{{ if not .NonEmptyInterfaceTypedNil }}OK{{ else }}{{ end }}
{{ if .NonEmptyInterfaceTypedNil }}{{ else }}OK{{ end }}
The functions `not`, `or`, and `and` all use the same `truth` function, which
unwraps any concrete interface value before passing it to `isTrue`.
`if` and `with` also use `isTrue` to establish truth, but was missing the
interface indirect call.
Fixes#30501
Change-Id: I9c49eed41e737d8f162e39bef1c3b82fd5518fed
GitHub-Last-Rev: 95fc2c82f2
GitHub-Pull-Request: golang/go#30534
Reviewed-on: https://go-review.googlesource.com/c/go/+/164958
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Add a small paragraph and example pointing out
the difference for the case where T is a slice
or map. This is a common error for Go novices.
Fixes#29425.
Change-Id: Icdb59f25361e9f6a09b190fbfcc9ae0c7d90077b
Reviewed-on: https://go-review.googlesource.com/c/go/+/176338
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
The very first paragraph on "Package initialization" stated that
"variables are initialized in declaration order, but after any
variables they might depend on". This phrasing was easily
misread as "declaration order is the first sorting criteria"
and then contradicted what the subsequent paragraphs spelled
out in precise detail.
Instead, variable initialization proceeds by repeatedly determining
a set of ready to initialize variables, and then selecting from that
set the variable declared earliest. That is, declaration order is the
second sorting criteria.
Also, for the purpose of variable initialization, declarations
introducing blank (_) variables are considered like any other
variables (their initialization expressions may have side-effects
and affect initialization order), even though blank identifiers
are not "declared".
This CL adds clarifying language regarding these two issues
and the supporting example.
Both gccgo and go/types implement this behavior. cmd/compile
has a long-standing issue (#22326).
The spec also did not state in which order multiple variables
initialized by a single (multi-value) initialization expression are
handled. This CL adds a clarifying paragraph: If any such variable
is initialized, all that declaration's variables are initialized at
the same time.
This behavior matches user expectation: We are not expecting to
observe partially initialized sets of variables in declarations
such as "var a, b, c = f()".
It also matches existing cmd/compile and go/types (but not gccgo)
behavior.
Finally, cmd/compile, gccgo, and go/types produce different
initialization orders in (esoteric) cases where hidden (not
detected with existing rules) dependencies exist. Added a
sentence and example clarifying how much leeway compilers have
in those situations. The goal is to preserve the ability to
use static initialization while at the same time maintain
the relative initialization order of variables with detected
dependencies.
Fixes #31292.
Updates #22326.
Change-Id: I0a369abff8cfce27afc975998db875f5c580caa2
Reviewed-on: https://go-review.googlesource.com/c/go/+/175980
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reduces the time on my machine for
go clean -cache; go test -short -count=1 cmd/compile/internal/gc
from 4.7s to 3.7s.
Updates #26473
Change-Id: I9f9573675ffd6519da63961f48f61260ae4717fd
Reviewed-on: https://go-review.googlesource.com/c/go/+/176937
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This speeds up
go test -short -count=1 cmd/fix
on my machine from about 8s to about 0.05s.
Updates #26473
Change-Id: I698ee20704ae0aee874ba642e7b0e070ddc99194
Reviewed-on: https://go-review.googlesource.com/c/go/+/176900
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This is a follow-up to CL 174099, fixing an important TODO.
The 'go help modget' documentation will be clarified in anotehr CL,
pending further discussion.
When invoked without -m, 'go get' will no longer match arguments
containing "..." against module paths. If a module's path matches a
pattern but no packages within the module match the pattern, the
module should not be upgraded. For example, if
golang.org/x/tools/playground and golang.org/x/tools are separate
modules, and only golang.org/x/tools is in the build list,
'go get golang.org/x/tools/playground/...' should add
golang.org/x/tools/playground to the build list and leave
golang.org/x/tools alone.
Updates #26902
Change-Id: I2bd18c7950db1aa7bd8527210c1baf2c7d174375
Reviewed-on: https://go-review.googlesource.com/c/go/+/176578
Run-TryBot: Jay Conrod <jayconrod@google.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Speeds up
go test -short -count=1 cmd/objdump
on my machine from 1.7s to 1.3s.
Not much, but as the backpacking saying goes,
take care of the ounces and the pounds will take care of themselves.
Updates #26473
Change-Id: I59fe9a179e48537c7d82cbba72cde9f92b42a029
Reviewed-on: https://go-review.googlesource.com/c/go/+/176901
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
MOVBstore's value argument is a value, not a flag. We are storing
a byte so just use UInt8.
Fixes#31915.
Change-Id: Id799e5f44efc3a9c3d8480f6f25ad032c2a631bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/176719
Run-TryBot: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
This was left over from the C->Go transition.
Change-Id: I52494af3d49a388dc45b57210ba68292ae01cf84
Reviewed-on: https://go-review.googlesource.com/c/go/+/176897
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Use cfg.GOSUMDB consistently instead of re-resolving it from the environment.
Set cfg.GOSUMDB to 'off' explicitly in coderepo_test, since it may
include modules that cannot be fetched using a released version of the
'go' command.
Fixes#31964
Change-Id: I17cae9e0c6aa1168ba534e6da4e3652800ac81e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/176538
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
.mjs should be the same MIME type as .js, and RFC 4329 says that
text/javascript is obsolete, even back in 2006:
https://tools.ietf.org/html/rfc4329#section-7.1
I didn't notice this when I recently reviewed CL 169502.
Also, re-sort it.
Updates #30547
Change-Id: I8ed8ddaf06c8a08b010423ebd071f39ef3a325e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/175459
Reviewed-by: Andrew Bonventre <andybons@golang.org>
Run-TryBot: Andrew Bonventre <andybons@golang.org>
Previous section of documentation said that if GOPATH is not set then
it will be default to "$HOME/go", not "$HOME/work".
This change fix the path in example code to "$HOME/go", and while at it
fix the output of git command after commit.
Change-Id: Ifedca6c3997efd07e865c27b7321d755acad0254
Reviewed-on: https://go-review.googlesource.com/c/go/+/175258
Reviewed-by: Andrew Bonventre <andybons@golang.org>
golang.org/cl/175260 fixed Is panics if target is uncomparable. It did
add an useless condition checking whether target is comparable. Just
remove that condition.
Change-Id: I0a317056479638d209b0a0cbc7010c153558c087
Reviewed-on: https://go-review.googlesource.com/c/go/+/176497
Reviewed-by: Joan Lopez de la Franca Beltran <joanjan14@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
These are encountered when compiling with -linkmode=internal on openbsd/arm64.
Fixes#31940
Change-Id: I851e6a7da0a3fb3e23b4fa2ed8dce3051c680f11
Reviewed-on: https://go-review.googlesource.com/c/go/+/176697
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Adjust the dummy use function to a real use. As suggested by the
println calls in the test, nilptr2.go supposes to check that a
used nil pointer dereference panics. This use function is not
real enough so an optimized compiler such as gccgo could
eliminate the call.
The spec requires that even a dummy use would cause a panic.
Unfortunately, due to #31151 this is not true for gccgo at -O1 or
above.
Change-Id: Ie07c8a5969ab94dad82d4f7cfec30597c25b7c46
Reviewed-on: https://go-review.googlesource.com/c/go/+/176579
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
When the SSA rules are re-generated to log rules,
they write output like:
rewrite AMD64.rules:527
rewrite AMD64.rules:427
rewrite AMD64.rules:494
This is silly; there are no non-rewrite lines in the file.
Furthermore, the rulelog file tends to be gigantic
for any non-trivial compilation (measured in gigabytes).
Remove the "rewrite " prefix.
No impact to normal builds.
Change-Id: I955995c1cc5f27a4a6a3849e19082ecb3e40bd4f
Reviewed-on: https://go-review.googlesource.com/c/go/+/176677
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
In CL 173722, we moved the flag registration in the testing package into
an Init function. In order to avoid needing changes to user code, we
called Init automatically as part of testing.MainStart.
However, that isn't early enough if flag.Parse is called before the
tests run, as part of package initialization.
Fix this by injecting a bit of code to call testing.Init into test
packages. This runs before any other initialization code in the user's
test package, so testing.Init will be called before any user code can
call flag.Parse.
Fixes#31859
Change-Id: Ib42cd8d3819150c49a3cecf7eef2472319d0c7e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/176098
Run-TryBot: Caleb Spare <cespare@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Vet help prints only to stdout.
Fixes#31885
Change-Id: If6089a371fa8e21828eba2e23cddd2d19fb69e8a
Reviewed-on: https://go-review.googlesource.com/c/go/+/176617
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This fixes TestScript/cover_pkgall_multiple_mains, which started
failing after CL 174657.
When compiling main packages with coverage instrumentation
(e.g., for -coverpkg all), we now pass -p with the full import path
instead of '-p main'. This avoids link errors
'duplicate symbol main.main (types 1 and 1)'.
Fixes#31946
Change-Id: Id147527b1dbdc14bb33ac133c30d50c250b4365c
Reviewed-on: https://go-review.googlesource.com/c/go/+/176558
Run-TryBot: Jay Conrod <jayconrod@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
I forgot that in Go assembly, x+16(SP) is not the same as 16(SP).
The former is the virtual stack pointer (one word below FP on x86)
while the latter is the actual stack pointer.
Change-Id: Ibb7012bb97261949f5e1a0dc70869d9a6f50aa99
Reviewed-on: https://go-review.googlesource.com/c/go/+/176557
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
These tests were added in CL 174206.
They required a 'git' binary and network access in an earlier draft,
but now use the test-local module proxy instead, so no longer need to
be skipped when those resources are not present.
Updates #30634
Change-Id: I5f36c6c776209a89bc45d133847df5052b55da59
Reviewed-on: https://go-review.googlesource.com/c/go/+/176537
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Jay Conrod <jayconrod@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The new prototypes of duffzero and duffcopy must be
accompanied by functions. Otherwise buildmode=shared
(in particular, misc/cgo/testshared) has missing symbols.
The right fix, of course, is to implement these on s390x.
For #31916.
Change-Id: I3efff5e3011956341e1b26223a4847a8a91a0453
Reviewed-on: https://go-review.googlesource.com/c/go/+/176397
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Working toward making the tree vet-safe instead of having
so many exceptions in cmd/vet/all/whitelist.
This CL makes "go vet -unsafeptr=false runtime" happy for nacl/*,
while keeping "GO_BUILDER_NAME=misc-vetall go tool dist test" happy too.
For #31916.
Change-Id: I6adb4a7b0c2b03d901fba37f9c05e74e5b7b6691
Reviewed-on: https://go-review.googlesource.com/c/go/+/176107
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Working toward making the tree vet-safe instead of having
so many exceptions in cmd/vet/all/whitelist.
This CL makes "go vet -unsafeptr=false runtime" happy for windows/*,
while keeping "GO_BUILDER_NAME=misc-vetall go tool dist test" happy too.
For #31916.
Change-Id: If37ab2b3f6fca4696b8a6afb2ef11ba6c4fb42e0
Reviewed-on: https://go-review.googlesource.com/c/go/+/176106
Reviewed-by: Austin Clements <austin@google.com>
Working toward making the tree vet-safe instead of having
so many exceptions in cmd/vet/all/whitelist.
This CL makes "go vet -unsafeptr=false runtime" happy for these GOOSes,
while keeping "GO_BUILDER_NAME=misc-vetall go tool dist test" happy too.
For #31916.
Change-Id: I63c4805bdd44b301072da66c77086940e2a2765e
Reviewed-on: https://go-review.googlesource.com/c/go/+/176105
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Working toward making the tree vet-safe instead of having
so many exceptions in cmd/vet/all/whitelist.
This CL makes "go vet -unsafeptr=false runtime" happy for these GOOSes,
while keeping "GO_BUILDER_NAME=misc-vetall go tool dist test" happy too.
For #31916.
Change-Id: Id2e1223497bd0cd6e880cd81f3ece6363e58219f
Reviewed-on: https://go-review.googlesource.com/c/go/+/176104
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Working toward making the tree vet-safe instead of having
so many exceptions in cmd/vet/all/whitelist.
This CL makes "go vet -unsafeptr=false runtime" happy for these GOOS/GOARCHes,
while keeping "GO_BUILDER_NAME=misc-vetall go tool dist test" happy too.
For #31916.
Change-Id: Ic64f7f4034695dd4c32c9b7f258960faf3742a83
Reviewed-on: https://go-review.googlesource.com/c/go/+/176103
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Working toward making the tree vet-safe instead of having
so many exceptions in cmd/vet/all/whitelist.
This CL makes "go vet -unsafeptr=false runtime" happy for these GOOS/GOARCHes,
except for an unresolved complaint on mips/mipsle that is a bug in vet,
while keeping "GO_BUILDER_NAME=misc-vetall go tool dist test" happy too.
For #31916.
Change-Id: I6ef7e982a2fdbbfbc22cee876ca37ac54d8109e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/176102
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Working toward making the tree vet-safe instead of having
so many exceptions in cmd/vet/all/whitelist.
This CL makes "GOOS=linux GOARCH=arm go vet -unsafeptr=false runtime" happy,
while keeping "GO_BUILDER_NAME=misc-vetall go tool dist test" happy too.
For #31916.
Change-Id: Ifae75b832320b5356ac8773cf85055bfb2bd7214
Reviewed-on: https://go-review.googlesource.com/c/go/+/176101
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Working toward making the tree vet-safe instead of having
so many exceptions in cmd/vet/all/whitelist.
This CL makes "GOOS=linux GOARCH=amd64 go vet -unsafeptr=false runtime" happy,
while keeping "GO_BUILDER_NAME=misc-vetall go tool dist test" happy too.
For #31916.
Change-Id: I4ca1acb02f4666b102d25fcc55fac96b8f80379a
Reviewed-on: https://go-review.googlesource.com/c/go/+/176100
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
