We want package analysis tools to be able to ask cmd/go for
cgo-translated files and for the names of files holding export
type information, instead of reinventing that logic themselves.
Allow them to do so, with the new list -cgo and -export flags.

Change-Id: I860df530d8dcc130f1f328413381b5664cc81c3b
Reviewed-on: https://go-review.googlesource.com/108156
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>

They are unused since CL 114799.

Also remove consts _CTL_KERN and _KERN_OSRELEASE previously used by
getDarwinVersion.

Change-Id: I51b701e8effbe4dd4301b0e6d52e8885469032f4
Reviewed-on: https://go-review.googlesource.com/116955
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Removing the colon will make the "Usage" and "Command line flag syntax" in the docs, a header when interpreted by godoc.

Fixes #25749

Change-Id: Ifc5572e171db1aaef9775b1d6c86091a8f2528fd
GitHub-Last-Rev: 1b579734308cbcb96f17d945b9c7af70e259cb5b
GitHub-Pull-Request: golang/go#25750
Reviewed-on: https://go-review.googlesource.com/116555Reviewed-by: Rob Pike <r@golang.org>

This function was added during the Go 1.11 dev cycle and isn't part of
the API compatibility promise yet.

In the previous implementation, NewGCMWithNonceAndTagSize was being used
as a helper function for NewGCM, NewGCMWithTagSize, and NewGCMWithNonceSize.
With the removal of Nonce size from the name and parameters, we needed to
add an unexported helper function newGCMWithNonceAndTagSize.

Fixes #24977

Change-Id: Ie70f2a192d0556c4f890deb62e68cff6bbbccd33
Reviewed-on: https://go-review.googlesource.com/116435Reviewed-by: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

This line of the inlining tuning experiment
https://go-review.googlesource.com/c/go/+/109918/1/src/cmd/compile/internal/gc/inl.go#347
was incorrectly rewritten in a later patch to use the call
cost, not the panic cost, and thus the inlining of panic
didn't occur when it should.  I discovered this when I
realized that tests should have failed, but didn't.

Fix is to make the correct change, and also to modify the
tests that this causes to fail.  One test now asserts the
new normal, the other calls "ppanic" instead which is
designed to behave like panic but not be inlined.

Change-Id: I423bb7f08bd66a70d999826dd9b87027abf34cdf
Reviewed-on: https://go-review.googlesource.com/116656
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>

Missed this in the prior submit.

For #24182.

Change-Id: If8349d39c80b7ff57bc0c857985f9e52241321b8
Reviewed-on: https://go-review.googlesource.com/116775
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Such errors are likely spurious and caused by previously reported
errors; they don't add valuable information. Simply drop them.

Fixes #24182.

Change-Id: I0ac48c41647c628aa7636b29eaedfd9d01913762
Reviewed-on: https://go-review.googlesource.com/116735Reviewed-by: Alan Donovan <adonovan@google.com>

Fixes #25330

Change-Id: I41b5b3459ed7808d18112ec02d734e2268099a81
Reviewed-on: https://go-review.googlesource.com/116596Reviewed-by: Daniel Theophanes <kardianos@gmail.com>

Change-Id: I77e31954f6d92f769934843bbba9f990f330f50a
Reviewed-on: https://go-review.googlesource.com/116675Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

SecKeychainItemExport is deprecated as of macOS 10.7. The minimum
supported version is macOS 10.10, so use SecItemExport instead.

While at it also bump macosx-version-min to 10.10 and
__MAC_OS_X_VERSION_MAX_ALLOWED to 101300 (for macOS 10.13).

Tested on macOS 10.10, 10.11 and 10.12.

Updates #23122

Change-Id: Id4cd6a5cea93315791253dc248e40e5615760a6c
Reviewed-on: https://go-review.googlesource.com/116396Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Every action has a short annotation.
The errorCheck function has a comment adapted from errchk script.

Removed redundant assigments to tmpDir.

Change-Id: Ifdd1284de046a0ce2aad26bd8da8a8e6a7707a8e
Reviewed-on: https://go-review.googlesource.com/115856
Run-TryBot: Yury Smolsky <yury@smolsky.by>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

The wasm archtecture was missing a rule to handle OffPtr with a
negative offset. This commit makes it so OffPtr always gets lowered
to I64AddConst.

Fixes #25741

Change-Id: I1d48e2954e3ff31deb8cba9a9bf0cab7c4bab71a
Reviewed-on: https://go-review.googlesource.com/116595Reviewed-by: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>

Updates #25284

Change-Id: I8ca382dd85b428ad6899d9277cf7f3ce34e35e9a
Reviewed-on: https://go-review.googlesource.com/116416
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>

Also, add a benchmark variant ("SkipServe") that only benchmarks the
ServeMux handler selection path.

name                  old time/op    new time/op    delta
ServeMux_SkipServe-4    74.2µs ± 2%    60.6µs ± 1%   -18.31%   (p=0.000 n=10+9)

name                  old alloc/op   new alloc/op   delta
ServeMux_SkipServe-4    2.62kB ± 0%   0.00kB ±NaN%  -100.00%  (p=0.000 n=10+10)

name                  old allocs/op  new allocs/op  delta
ServeMux_SkipServe-4       180 ± 0%        0 ±NaN%  -100.00%  (p=0.000 n=10+10)

Updates #25383

Change-Id: Icfbb3b977e309093d032e922d1b4f254df6f5955
Reviewed-on: https://go-review.googlesource.com/116378
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>

When using test -cover or -coverprofile the output for "no test files"
is the same format as for "no tests to run".

Fixes #24570

Change-Id: If05609411676d42d94c1feac4bc839974fae2cc1
Reviewed-on: https://go-review.googlesource.com/115095
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

There is no benefit in continuing compilation if there
are type-checking errors. This will increase robustness
of the compiler in the presence of errors.

Fixes #22909.

Change-Id: I1c70c667e5927646ba3d0f370e33705165620f12
Reviewed-on: https://go-review.googlesource.com/116335Reviewed-by: Ian Lance Taylor <iant@golang.org>

Change-Id: Ifc774bb9267baa773e91c617204329d3e04bd4b7
Reviewed-on: https://go-review.googlesource.com/116363Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: I10dededb41162a99dbc42792a9d314c6dabddcca
Reviewed-on: https://go-review.googlesource.com/116362Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>

Found while tracking down another issue.

Change-Id: If06eee72ce3e3f45dc00b3b68670e1e4d99c87a7
Reviewed-on: https://go-review.googlesource.com/116455
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Fixes #25019

Change-Id: I715e3bb560b2a0301240cecb09a5126ab04a666e
Reviewed-on: https://go-review.googlesource.com/116375Reviewed-by: Ian Lance Taylor <iant@golang.org>

In the old binary export format, parameter names for parameter lists
which contained only types where never written, so this problem didn't
come up.

Fixes #25101.

Change-Id: Ia8b817f7f467570b05f88d584e86b6ef4acdccc6
Reviewed-on: https://go-review.googlesource.com/116376Reviewed-by: Matthew Dempsky <mdempsky@google.com>

gccgo fails this test before CL 115577.

Updates #25284

Change-Id: Id4550b7b3e268f3c294420ed31c57ad3f1002b5e
Reviewed-on: https://go-review.googlesource.com/115635
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>

For given program with 2 undefined relocations (main and undefined):

	package main
	func undefined()
	func defined() int {
		undefined()
		undefined()
		return 0
	}
	var x = defined()

"go tool link" produces these errors:

	main.defined: relocation target main.undefined not defined
	main.defined: relocation target main.undefined not defined
	runtime.main_main·f: relocation target main.main not defined
	main.defined: undefined: "main.undefined"
	main.defined: undefined: "main.undefined"
	runtime.main_main·f: undefined: "main.main"

After this CL is applied:

	main.defined: relocation target main.undefined not defined
	runtime.main_main·f: function main is undeclared in the main package

Fixes #10978
Improved error message for main proposed in #24809.

Change-Id: I4ba8547b1e143bbebeb4d6e29ea05d932124f037
Reviewed-on: https://go-review.googlesource.com/113955
Run-TryBot: Iskander Sharipov <iskander.sharipov@intel.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

If an error occurs, delete the newly created directory.

Change-Id: I97e960d24af32f027fb23d5ce3f61959e73f6fb0
Reviewed-on: https://go-review.googlesource.com/115715
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Adds an extra M in mstartm0 and accounts for it in checkdead. This allows Windows callbacks created with syscall.NewCallback and syscall.NewCallbackCDecl to be called on a non-Go thread.

Fixes #6751

Change-Id: I57626bc009a6370b9ca0827ab64b14b01dec39d4
GitHub-Last-Rev: d429e3eed923640edab580bdb47fcb81e75dbfe8
GitHub-Pull-Request: golang/go#25575
Reviewed-on: https://go-review.googlesource.com/114802Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Fixes #23094.

Change-Id: I9aa36046488baa5f55cf2099e10cfb39ecd17b06
Reviewed-on: https://go-review.googlesource.com/116256
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Fixes #18911.

Change-Id: Ice10f37460a4f0a66cddeacfe26c28045f5e60fe
Reviewed-on: https://go-review.googlesource.com/116255
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>

The existing implementation panics on malformed input of an empty
string. strconv.Unquote validates the length of the inputs, but calling
UnquoteChar directly with an empty string leads to a panic, so add a
check for length. Also, add a test to go/constant to ensure that
MakeFromLiteral does not panic on malformed input such as
"const x = ''".

Change-Id: I4217e38db48a09a21ec414bbfb3087709da62904
Reviewed-on: https://go-review.googlesource.com/116215
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>

Updates #23122

Change-Id: Ia2c869a140c8ee01b5861897e4706389950d387e
Reviewed-on: https://go-review.googlesource.com/116156
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

If we run into data corruption due to the program accessing timers in
a racy way, do a normal panic rather than a hard crash with "panic
holding locks". The hope is to make the problem less confusing for users.

Fixes #25686

Change-Id: I863417adf21f7f8c088675b67a3acf49a0cdef41
Reviewed-on: https://go-review.googlesource.com/115815Reviewed-by: Austin Clements <austin@google.com>

These were added in CL 106979. I got them wrong.
They were fixed in CL 111643. They were still wrong.
Hopefully this change will be the last fix.

With this fix, CL 106979 is allocation-neutral for BenchmarkRagged.
The performance results for BenchmarkPyramid reported in CL 111643 stand.

Change-Id: Id6a522e6602e5df31f504adf5a3bec9969c18649
Reviewed-on: https://go-review.googlesource.com/116015
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>

This commit adds the js/wasm architecture to the net package.
The net package is not supported by js/wasm, but a simple fake
networking is available so tests of other packages that require
basic TCP sockets can pass. The tests of the net package itself
are mostly disabled.

Updates #18892

Change-Id: Id287200c39f0a3e23d20ef17260ca15ccdcca032
Reviewed-on: https://go-review.googlesource.com/109995
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Change-Id: Ie8d563d39b88ab1631bc150d7d5bdbf1aa400f76
GitHub-Last-Rev: d092c8c8eb886fd9abad9bdaed7330a6cbd7f9a4
GitHub-Pull-Request: golang/go#25716
Reviewed-on: https://go-review.googlesource.com/116115Reviewed-by: Daniel Martí <mvdan@mvdan.cc>

These were generated using the racebuild configuration from
https://golang.org/cl/115375, with the LLVM compiler-rt repository at
commit fe2c72c59aa7f4afa45e3f65a5d16a374b6cce26 for most platforms.

The Windows build is from an older compiler-rt revision, because the
compiler-rt build script for the Go race detector has been broken
since January 2017 (https://reviews.llvm.org/D28596).

Updates #24354.

Change-Id: Ica05a5d0545de61172f52ab97e7f8f57fb73dbfd
Reviewed-on: https://go-review.googlesource.com/112896Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

The SYS_EPOLL_WAIT syscall doesn't exist on arm64. This CL implements EpollWait
with SYS_EPOLL_PWAIT syscall.

Change-Id: Ica9107a58d7da45351fe2e900f59bec5b7b18f39
Reviewed-on: https://go-review.googlesource.com/115735
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

The in-progress WASM port does not yet have sufficient automatic
testing performed against it, so these errors slipped through when
adding the new Fetch API backed http.Roundtripper.

Updates #25506

Change-Id: I84c5832452e3e6067a02d926f67d01aaca66b837
GitHub-Last-Rev: 064062b5fd256e7fce961a13a8ac00a135f60221
GitHub-Pull-Request: golang/go#25714
Reviewed-on: https://go-review.googlesource.com/116076Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

CL 109340 added “minimal module-awareness for legacy operation.”
One part of that is reinterpreting imports inside code trees with go.mod files
as using semantic import versioning, and converting them back to
legacy import paths by stripping the major version element
(for example, interpreting import "x.com/foo/v2/bar" as import "x.com/foo/bar").
This rewrite was not being applied during "go get", with the effect that once
you had the target code downloaded already, everything was fine,
but it didn't download and build successfully the first time.

Fixes #25687.

Change-Id: I3e122efdc8fd9a0a4e66f5aa3e6a99f90c7df779
Reviewed-on: https://go-review.googlesource.com/115797
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>

These tests were meant to be included into https://golang.org/cl/113315,
but were lost somewhere in the middle.

This CL adds hand-written AVX-512 tests that complement
auto-generated test suite.

It's worth including it, because:

	- It covers every new Z-case explicitly
	- Does checks every opcode suffix encoding

Change-Id: Id6da5f58773e07bef3d532fc3ca5db391d380ebf
Reviewed-on: https://go-review.googlesource.com/115858
Run-TryBot: Iskander Sharipov <iskander.sharipov@intel.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>

The stack frame includes the callee args section. At the point where
we were checking the frame size, that part of the frame had not been
computed yet. Move the check later so we can include the callee args size.

Fixes #20780
Update #25507

Change-Id: Iab97cb89b3a24f8ca19b9123ef2a111d6850c3fe
Reviewed-on: https://go-review.googlesource.com/115195
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>

Each URL was manually verified to ensure it did not serve up incorrect
content.

Change-Id: I4dc846227af95a73ee9a3074d0c379ff0fa955df
Reviewed-on: https://go-review.googlesource.com/115798Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>