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37804 Commits

Author SHA1 Message Date
Andrew Bonventre
96b5f6dd1d doc: update go1.11 release notes
Update text/scanner and text/template sections.

Change-Id: I1a273e99ff400870053cca63cea68fb7a9b56764
Reviewed-on: https://go-review.googlesource.com/124705
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2018-07-18 19:07:10 +00:00
Brad Fitzpatrick
ac1cb992ea doc/go1.11: remove unnecessary absolute link
This doesn't auto-deploy to golang.org, only tip.golang.org.

Change-Id: I112743ada2c1393e21edcc9075127f40da9e6270
Reviewed-on: https://go-review.googlesource.com/124755
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-18 18:28:37 +00:00
Russ Cox
b9761b18e1 doc/go1.11: link to module overview
Change-Id: Id381ee73e678ff4b025c1c35512a755ba49d6f81
Reviewed-on: https://go-review.googlesource.com/124702
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2018-07-18 17:33:28 +00:00
Brad Fitzpatrick
3522cd8a20 doc: fix a link in go1.11.html and flesh out a few sections
Change-Id: Ic5b9ccb2772534cee77ffcaeee617c7d5edfb6fd
Reviewed-on: https://go-review.googlesource.com/124715
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-18 16:32:58 +00:00
Hana (Hyang-Ah) Kim
311ec41b5a doc/go1.11: update runtime/pprof change note
Mention the change in the behavior of go test -memprofile.

Change-Id: I0384f058298bd8fcfd2d97996464d46b4e419938
Reviewed-on: https://go-review.googlesource.com/124656
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-18 15:15:35 +00:00
Alberto Donizetti
bd9a0185d2 doc/go1.11: add space in Go version name
Missed in CL 124516.

Change-Id: I6488196c8392987d69eca832ab4969aaafe1a26c
Reviewed-on: https://go-review.googlesource.com/124658
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-18 14:56:41 +00:00
Elias Naur
8362a8e127 doc/go1.11: mention the libSystem.so change for iOS
The change to make the runtime use libSystem.so macOS instead of
direct kernel calls applies to iOS as well.

Change-Id: I97ea86452ac5f7433aea58bbd3ff53a2eb2835e0
Reviewed-on: https://go-review.googlesource.com/124657
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-18 14:46:59 +00:00
Ben Shi
f6ce1e2aa5 cmd/compile: fix an arm64's comparison bug
The arm64 backend generates "TST" for "if uint32(a)&uint32(b) == 0",
which should be "TSTW".

fixes #26438

Change-Id: I7d64c30e3a840b43486bcd10eea2e3e75aaa4857
Reviewed-on: https://go-review.googlesource.com/124637
Run-TryBot: Ben Shi <powerman1st@163.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-07-18 14:15:05 +00:00
Alberto Donizetti
07b81912d4 doc/go1.11: add time package changes to release notes
Change-Id: I6f8d9cc8997128d0076a3a3e82fe5155d53db40d
Reviewed-on: https://go-review.googlesource.com/124659
Reviewed-by: Rob Pike <r@golang.org>
2018-07-18 10:05:16 +00:00
Ian Lance Taylor
a371bc2dfd cmd/cgo: don't report inconsistency error for incomplete typedef
In CLs 122575 and 123177 the cgo tool started explicitly looking up
typedefs. When there are two Go files using import "C", and the first
one has an incomplete typedef and the second one has a complete
version of the same typedef, then we will now record a version of the
first typedef which will not match the recorded version of the second
typedef, producing an "inconsistent definitions" error. Fix this by
silently merging incomplete typedefs with complete ones.

Fixes #26430

Change-Id: I9e629228783b866dd29b5c3a31acd48f6e410a2d
Reviewed-on: https://go-review.googlesource.com/124575
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-07-18 04:17:51 +00:00
Rob Pike
0d93758222 doc/gopher: add model sheet
This should have been added to the repo after Renee's Gophercon
keynote. I will link to it from the FAQ.

Change-Id: I0e5b88690e288827591d27b99420d3a449f7f662
Reviewed-on: https://go-review.googlesource.com/124615
Reviewed-by: Andrew Gerrand <adg@golang.org>
2018-07-18 04:00:10 +00:00
Russ Cox
e161b1e8ee cmd/go/internal/module: allow v0.0.0 pseudoversion for gopkg.in/check.v1
It worked once. It needs to keep working.

Change-Id: Iaa43726e1c78f0c4a20b5805c7c2bfa76fab2489
Reviewed-on: https://go-review.googlesource.com/124383
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-18 02:09:03 +00:00
Russ Cox
56deebb3e4 cmd/go: add clean -modcache
We need an easy way to remove $GOPATH/src/mod,
especially since all the directories are marked read-only.

Change-Id: Ib9e8e47e50048f55ecc4de0229b06c4a416ac114
Reviewed-on: https://go-review.googlesource.com/124382
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-18 02:09:01 +00:00
Russ Cox
30678788b2 cmd/go/internal/modfetch: make subdirectories unwritable too
The top-level directory in a module was marked unwritable
but not the subdirectories. Fix that.

Change-Id: Ia57e5343624753851d9fe1ddfe496b870b67f924
Reviewed-on: https://go-review.googlesource.com/124381
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-18 02:09:00 +00:00
Russ Cox
5c622a5bf3 cmd/go/internal/modfetch: restrict file names in zip files, avoid case-insensitive collisions
Within the zip file for a given module, disallow names that are invalid
on various operating systems (mostly Windows), and disallow
having two different paths that are case-fold-equivalent.
Disallowing different case-fold-equivalent paths means the
zip file content is safe for case-insensitive file systems.

There is more we could do to relax the rules later, but I think
this should be enough to avoid digging a hole in the early days
of modules that's hard to climb out of later.

In tests on my repo test corpus, the repos now rejected are:

github.com/vjeantet/goldap v0.0.0-20160521203625-ea702ca12a40
	"doc/RFC 4511 - LDAP: The Protocol.txt": invalid char ':'

github.com/ChimeraCoder/anaconda v0.0.0-20160509014622-91bfbf5de08d
	"json/statuses/show.json?id=404409873170841600": invalid char '?'

github.com/bmatcuk/doublestar
	"test/a☺b": invalid char '☺'

github.com/kubernetes-incubator/service-catalog v0.1.10
	"cmd/svcat/testdata/responses/clusterserviceclasses?fieldSelector=spec.externalName=user-provided-service.json": invalid char '?'

The : and ? are reserved on Windows,
and the : is half-reserved (and quite confusing) on macOS.
The ☺ is perhaps an overreach, but I am not convinced
that allowing all of category So is safe; certainly Sk is not.

Change-Id: I83b6ac47ce6c442f726f1036bccccdb15553c0af
Reviewed-on: https://go-review.googlesource.com/124380
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-18 02:08:59 +00:00
Russ Cox
5760ffc7ef cmd/go/internal/modfetch: do not rely on file system for case sensitivity
Over time there may exist two modules with names that differ only in case.
On systems with case-insensitive file systems, we need to make sure those
modules do not collide in the download cache.

Do this by using the new "safe encoding" for file system paths as well as
proxy paths.

Fixes #25992.

Change-Id: I717a9987a87ad5c6927d063bf30d10d9229498c9
Reviewed-on: https://go-review.googlesource.com/124379
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-18 02:08:58 +00:00
Russ Cox
203c16592b cmd/go/internal/module: define fs-safe module path encoding
Module paths, like import paths, are case-sensitive, for better or worse.
But not all file systems distinguish file paths with different cases.
If we are going to use module paths to construct file system paths,
we must apply an encoding that distinguishes case without relying
upon the file system to do it.

This CL defines that encoding, the "safe module path encoding".
Module paths today are ASCII-only with limited punctuation,
so the safe module path encoding is to convert the whole path
to lower case and insert an ! before every formerly upper-case letter:
github.com/Sirupsen/logrus is stored as github.com/!sirupsen/logrus.

Although this CL defines the encoding, it does not change the rest
of the go command to use the encoding. That will be done in
follow-up CLs.

Change-Id: I06e6188dcfcbbc1d88674f7c95e1cb45cb476238
Reviewed-on: https://go-review.googlesource.com/124378
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-18 02:08:57 +00:00
EduRam
ce09ce4ae0 syscall: update check for UserNS support for CentOS 7.5+
Fixes #26385

Change-Id: I5594564f42898a71d30531e5132bddb3a6915247
GitHub-Last-Rev: fbd7b38b04
GitHub-Pull-Request: golang/go#26427
Reviewed-on: https://go-review.googlesource.com/124555
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-18 01:16:24 +00:00
Ian Lance Taylor
f3cdc94154 cmd/go: search test imports when matching -coverpkg
Fixes #25093

Change-Id: If283275e2b73621ade56d014e60c2d18199b366c
Reviewed-on: https://go-review.googlesource.com/122555
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-17 22:22:37 +00:00
Rob Pike
3a28a711db doc: improve the garbage collection discussion
Bring it up to date with recent terminology, mention new approaches
such as in Rust, and link to the new blog post.

Change-Id: I1d0b121e6f8347c3cf2c8ca0d8adc8285ce59ef1
Reviewed-on: https://go-review.googlesource.com/124475
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-17 22:02:35 +00:00
Austin Clements
92e03bbaa8 doc/go1.11: compiler and runtime release notes
Change-Id: I487bdf0c828d28b2122bd93934dc5a9a5dbc6a00
Reviewed-on: https://go-review.googlesource.com/124517
Reviewed-by: Austin Clements <austin@google.com>
2018-07-17 21:51:00 +00:00
Austin Clements
61a04474e2 doc/go1.11: fix some typos
Change-Id: I3c0cb9b56776d8cc78a96ef012385c31f9f0e146
Reviewed-on: https://go-review.googlesource.com/124516
Reviewed-by: Austin Clements <austin@google.com>
2018-07-17 21:50:45 +00:00
Mostyn Bramley-Moore
940811922f path/filepath: make Walk example runnable in the playground
Relates to #9679

Change-Id: I68951f664d2a03812dae309c580c181869d8af21
Reviewed-on: https://go-review.googlesource.com/122237
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-17 21:26:47 +00:00
Filippo Valsorda
a80a7f0e77 doc: minor go1.11 changes
CL 124135 follow-ups.

Change-Id: Ib7e2066bd2d18851561e03386709a1b42b50fcef
Reviewed-on: https://go-review.googlesource.com/124136
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2018-07-17 19:46:22 +00:00
Frank Schroeder
b9a764ffdf cmd/go: run git log with --no-show-signature
Git timestamp parsing is broken when fetching modules if the
local git configuration has 'log.showsignature=true'.

Fixes #26388

Change-Id: I47f92381784072335a2a465de56092106c616108
GitHub-Last-Rev: 96f988c0a2
GitHub-Pull-Request: golang/go#26389
Reviewed-on: https://go-review.googlesource.com/123958
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-07-17 18:04:14 +00:00
Steeve Morin
5419e7a09d cmd/cgo: update JNI's jobject to uintptr check for newer Android NDKs
In Android's NDK16, jobject is now declared as:
    #ifdef __cplusplus
    class _jobject {};
    typedef _jobject*       jobject;
    #else /* not __cplusplus */
    typedef void*           jobject;
    #endif

This makes the jobject to uintptr check fail because it expects the
following definition:
    struct _jobject;
    typedef struct _jobject *jobject;

Update the type check to handle that new type definition in both C and
C++ modes.

Fixes #26213

Change-Id: Ic36d4a5176526998d2d5e4e404f8943961141f7a
GitHub-Last-Rev: 42037c3c58
GitHub-Pull-Request: golang/go#26221
Reviewed-on: https://go-review.googlesource.com/122217
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-07-17 16:51:15 +00:00
Alberto Donizetti
bccbf59046 doc/go1.11: explain new vet typechecking behaviour in release notes
Since Go1.10, go test runs vet on the tests before executing them.

Moreover, the vet tool typechecks the package under analysis with
go/types before running. In Go1.10, a typechecking failure just caused
a warning to be printed. In Go1.11, a typechecking failure will cause
vet to exit with a fatal error (see Issue #21287).

This means that starting with Go1.11, tests that don't typecheck will
fail immediately. This would not normally be an issue, since a test
that doesn't typecheck shouldn't even compile, and it should already
be broken.

Unfortunately, there's a bug in gc that makes it accept programs with
unused variables inside a closure (Issue #3059). This means that a
test with an unused variable inside a closure, that compiled and
passed in Go1.10, will fail in the typechecking step of vet starting
with Go1.11.

Explain this in the 1.11 release notes.

Fixes #26109

Change-Id: I970c1033ab6bc985d8c64bd24f56e854af155f96
Reviewed-on: https://go-review.googlesource.com/121455
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-17 16:44:23 +00:00
Austin Clements
57b5a71d7c Revert "runtime: fix lldb test after DWARF compression"
This reverts commit c99300229d.

The original CL skipped the lldb test if it couldn't read compressed
DWARF, but lldb can never read compressed DWARF, so this effectively
disabled this test unconditionally.

The previous commit disabled DWARF compression for this test, so the
test now works on its own merits again. This CL reverts the change to
skip the test so we don't simply mask lldb failures.

Updates #25925.

Change-Id: I3e1c787b658257b542c3c70807065dde9cfe05ee
Reviewed-on: https://go-review.googlesource.com/124386
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-17 16:25:47 +00:00
Austin Clements
ff5b54d24a runtime: disable compressed DWARF for lldb test
lldb doesn't support compressed DWARF, so right now we're just always
skipping the lldb test. This CL makes the test run again by disabling
compressed DWARF just for this test.

Updates #25925.

Change-Id: Ib9ddc442305fe6d37060d48f36bc4458b6fd8c86
Reviewed-on: https://go-review.googlesource.com/124385
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-17 16:25:42 +00:00
Michael Munday
1546ab5a39 cmd/compile: keep autos if their address reaches a control value
Autos must be kept if their address reaches the control value of a
block. We didn't see this before because it is rare for an auto's
address to reach a control value without also reaching a phi or
being written to memory. We can probably optimize away the
comparisons that lead to this scenario since autos cannot alias
with pointers from elsewhere, however for now we take the
conservative approach and just ensure the auto is properly
initialised if its address reaches a control value.

Fixes #26407.

Change-Id: I02265793f010a9e001c3e1a5397c290c6769d4de
Reviewed-on: https://go-review.googlesource.com/124335
Reviewed-by: David Chase <drchase@google.com>
2018-07-17 14:58:54 +00:00
Russ Cox
5890e25b7c cmd/go: add new test script facility
The original cmd/go tests were tiny shell scripts
written against a library of shell functions.
They were okay to write but difficult to run:
you couldn't select individual tests (with -run)
they didn't run on Windows, they were slow, and so on.

CL 10464 introduced go_test.go's testgo framework
and later CLs translated the test shell script over to
individual go tests. This let us run tests selectively,
run tests on Windows, run tests in parallel, isolate
different tests, and so on. It was a big advance.

The tests had always been awkward to write.
Here was the first test in test.bash:

	TEST 'file:line in error messages'
	# Test that error messages have file:line information at beginning of
	# the line. Also test issue 4917: that the error is on stderr.
	d=$(TMPDIR=/var/tmp mktemp -d -t testgoXXX)
	fn=$d/err.go
	echo "package main" > $fn
	echo 'import "bar"' >> $fn
	./testgo run $fn 2>$d/err.out || true
	if ! grep -q "^$fn:" $d/err.out; then
		echo "missing file:line in error message"
		cat $d/err.out
		ok=false
	fi
	rm -r $d

The final Go version of this test was:

	func TestFileLineInErrorMessages(t *testing.T) {
		tg := testgo(t)
		defer tg.cleanup()
		tg.parallel()
		tg.tempFile("err.go", `package main; import "bar"`)
		path := tg.path("err.go")
		tg.runFail("run", path)
		shortPath := path
		if rel, err := filepath.Rel(tg.pwd(), path); err == nil && len(rel) < len(path) {
			shortPath = rel
		}
		tg.grepStderr("^"+regexp.QuoteMeta(shortPath)+":", "missing file:line in error message")
	}

It's better but still quite difficult to skim.

This CL introduces a new facility meant as a successor to the testgo
approach that brings back the style of writing tests as little scripts,
but they are now scripts in a built-for-purpose shell-like language,
not bash itself. In this new form, the test above is a single file,
testdata/script/fileline.txt:

	# look for short, relative file:line in error message
	! go run ../../gopath/x/y/z/err.go
	stderr ^..[\\/]x[\\/]y[\\/]z[\\/]err.go:

	-- ../x/y/z/err.go --
	package main; import "bar"

The file is a txtar text archive (see CL 123359) in which the leading comment
is the test script and the files are the initial state of the temporary file
system where the script runs.

Each script runs as a subtest, so that they can still be selected individually.

The scripts are kept isolated from each other by default,
so all script subtests are treated as parallel tests, for the
testing package to run in parallel. Even for the 15 tests in
this CL, that cuts the time for TestScript from 5.5s to 2.5s.

The scripts do not have access to the cmd/go source directory,
nor to cmd/go/testdata, so they are prevented from creating temporary
files in those places or modifying existing ones. (Many existing tests
scribble in testdata, unfortunately, especially testdata/pkg when
they run builds with GOPATH=testdata.)

This CL introduces the script facility and converts 15 tests.
The txtar archive form will allow us to delete the large trees of trivial
files in testdata; a few are deleted in this CL.

See testdata/script/README for details and a larger conversion example.

As part of converting testdata/script/test_badtest.txt,
I discovered that 'go test' was incorrectly printing a FAIL line
to stderr (not stdout) in one corner case. This CL fixes that
to keep the test passing.

Future CLs will convert more tests.

Change-Id: I11aa9e18dd2d4c7dcd8e310dbdc6a1ea5f7e54c1
Reviewed-on: https://go-review.googlesource.com/123577
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-17 14:17:23 +00:00
Rob Pike
b59b42cee8 doc: update Usage section of the FAQ
This is close to a complete rewrite, as the content was pretty old.

The CL includes links to the Wiki for information about companies
using Go, a new section about IDEs and editors¹, and a restatement
of the foreign function interface story. It also modernizes and
expands a little on the use of Go inside Google.

¹ Ed is the standard editor.

Change-Id: I5e54aafa53d00d86297b2691960a376b40f6225b
Reviewed-on: https://go-review.googlesource.com/123922
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-17 10:07:18 +00:00
Rob Pike
c4f30481b3 doc: rewrite run-on sentence in garbage collection discussion
Change-Id: I60cb7010448757ca4c7a2973bee2277b3d5fc439
Reviewed-on: https://go-review.googlesource.com/124175
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-17 09:48:05 +00:00
Ian Lance Taylor
f17220c208 cmd/go: fix handling of vet.cfg with buggyInstall
The vet action assumes that a.Deps[0] is the compilation action for
which vet information should be generated. However, when using
-linkshared, the action graph is built with a ModeBuggyInstall action
to install the shared library built from the compilation action.
Adjust the set up of the vet action accordingly. Also don't clean up
the working directory after completing the buggy install.

Updates #26400

Change-Id: Ia51f9f6b8cde5614a6f2e41b6207478951547770
Reviewed-on: https://go-review.googlesource.com/124275
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-17 05:41:06 +00:00
Zev Goldstein
0c319ee4fe cmd/go/internal/cache: squelch cache init warnings when $HOME is /
Docker sets $HOME to / when running with a UID that doesn't exist within
the container.  This not  uncommon on CI servers.

Fixes #26280

Change-Id: Ic7ff62b41403fe6e7c0cef12814667ef73f6c954
Reviewed-on: https://go-review.googlesource.com/122487
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-17 05:17:31 +00:00
Eric Daniels
6e4e29408a http/internal: document final CRLF behavior on chunkedWriter
Change-Id: I0f76b40dbfda2d382c88aec377db1851c4ac7441

Change-Id: I0f76b40dbfda2d382c88aec377db1851c4ac7441
GitHub-Last-Rev: ab42559278
GitHub-Pull-Request: golang/go#26410
Reviewed-on: https://go-review.googlesource.com/124255
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-17 02:23:17 +00:00
Russ Cox
c2ba0ca804 cmd/go: handle relative temp dir
Most programs seem to accept a relative temp dir, as weird as that might be.

Also, the meaning of relative is a little more fluid on Windows:
TMP=\temp is relative (to the current drive) but will work well enough.

Also, Windows GetTempPath automatically converts a relative
%TMP% into an absolute path, so we'd be imposing different
behavior for GOTMPDIR vs TMP.

It seems easier and more consistent to just impose the obvious
meaning than to add an error we can only implement some of
the time.

Originally got here because "cmd/go:" should be"go:" in error message,
but the error message is gone now.

Fixes #23264.

Change-Id: I3c3fb801cbd5e652364f1f62bb3881e9317e3581
Reviewed-on: https://go-review.googlesource.com/123876
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-16 23:42:54 +00:00
Ian Lance Taylor
274fde9a36 cmd/internal/buildid: close ELF file after reading note
Updates #26400

Change-Id: I1747d1f1018521cdfa4b3ed13412a944829967cf
Reviewed-on: https://go-review.googlesource.com/124235
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-16 23:37:14 +00:00
Joe Tsai
4b0c8b0136 archive/zip: fix regression when writing directories
Several adjustments:

1) When encoding the FileHeader for a directory, explicitly set all of the sizes
to zero regardless of their prior values. These values are currently populated
by FileInfoHeader as it calls os.FileInfo.Size regardless of whether the file is
a directory or not. We avoid fixing FileInfoHeader now as it is too late in the
release cycle (see #24082).

We silently adjust slightly wrong FileHeader fields as opposed to returning
an error because the CreateHeader method already does such mutations
(e.g., for UTF-8 detection, data descriptor, etc).

2) Have dirWriter.Write only return an error if some number of bytes are written.
Some code still call Write for both normal files and directories, but just pass
an empty []byte to Write for directories.

Change-Id: I85492a31356107fcf76dc89ceb00a28853754289
Reviewed-on: https://go-review.googlesource.com/124155
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-16 22:52:11 +00:00
Filippo Valsorda
c80897b691 doc: populate and add go1.11 notes related to crypto
Change-Id: I8163d06e5099d7ac39b04ccadf7f6533967db2f5
Reviewed-on: https://go-review.googlesource.com/124135
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2018-07-16 20:29:54 +00:00
Filippo Valsorda
0852a104fd crypto/x509: add GODEBUG option x509ignoreCN=1
When x509ignoreCN=1 is present in GODEBUG, ignore the deprecated Common
Name field. This will let people test a behavior we might make the
default in the future, and lets a final class of certificates avoid the
NameConstraintsWithoutSANs error.

Updates #24151

Change-Id: I1c397aa1fa23777b9251c311d02558f9a5bdefc0
Reviewed-on: https://go-review.googlesource.com/123695
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Adam Langley <agl@golang.org>
2018-07-16 19:30:55 +00:00
Filippo Valsorda
4f9ec2c756 crypto/x509: ignore Common Name when it does not parse as a hostname
The Common Name is used as a hostname when there are no Subject
Alternative Names, but it is not restricted by name constraints. To
protect against a name constraints bypass, we used to require SANs for
constrained chains. See the NameConstraintsWithoutSANs error.

This change ignores the CN when it does not look like a hostname, so we
can avoid returning NameConstraintsWithoutSANs.

This makes it possible to validate certificates with non-hostname CN
against chains that use name constraints to disallow all names, like the
Estonian IDs.

Updates #24151

Change-Id: I798d797990720a01ad9b5a13336756cc472ebf44
Reviewed-on: https://go-review.googlesource.com/123355
Reviewed-by: Adam Langley <agl@golang.org>
2018-07-16 19:30:08 +00:00
Keith Randall
baebc7f993 misc/cgo: fix darwin test, again
TARGET_OS_OSX is the right macro, but it also was only introduced
in 1.12.  For 1.11 and earlier a reasonable substitution is
TARGET_OS_IPHONE == 0.

Update #24161
Update #26355

Change-Id: I5f43c463d14fada9ed1d83cc684c7ea05d94c5f3
Reviewed-on: https://go-review.googlesource.com/124075
Run-TryBot: Keith Randall <khr@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-07-16 19:14:30 +00:00
Brad Fitzpatrick
f49a5c6c57 doc: move the go1.11 "all" section elsewhere, add os/signal.Ignored, GOMIPS64
Change-Id: Ice8f82a6288eeadfb8efd7628444166a447831da
Reviewed-on: https://go-review.googlesource.com/124096
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-16 18:38:30 +00:00
Brad Fitzpatrick
6c44036c1f doc: add more to go1.11, sort, remove dups
Change-Id: I20a82f6b47cd3ab4ca22d222e6d8a2c59d57e2a4
Reviewed-on: https://go-review.googlesource.com/124095
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-16 18:24:24 +00:00
Brad Fitzpatrick
f4b8a5194e doc: flesh out go1.11 notes
Change-Id: I0152d3c1d980e271fbcdb9d5def094d3c837a4f4
Reviewed-on: https://go-review.googlesource.com/124055
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-16 17:49:11 +00:00
Brad Fitzpatrick
e07e9c4fd5 doc: add net/http additions to go1.11 notes
Change-Id: Ib2da2b0ceb33867a41b0b9b7e4dcecb11f964b73
Reviewed-on: https://go-review.googlesource.com/124035
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-16 17:48:58 +00:00
Ian Lance Taylor
1177b089f5 cmd/cgo: add note about bug writing C pointers to uninitialized C memory
Describe the problem as a bug, since it is not implied by the rest of
the pointer passing rules, and it may be possible to fix it.

Updates #19928

Change-Id: I2d336e7336b2a215c0b8cf909a203201ef1b054e
Reviewed-on: https://go-review.googlesource.com/123658
Reviewed-by: Austin Clements <austin@google.com>
2018-07-16 17:27:35 +00:00
Ian Lance Taylor
b323709a5c cmd/go: make TestNewReleaseRebuildsStalePackagesInGOPATH pass again
The test TestNewReleaseRebuildsStalePackagesInGOPATH is not run in
short mode, so people tend to not notice when it fails. It was failing
due to the build cache. Make it pass again by 1) changing it to modify
the package in a way visible to the compiler, so that the change is
not hidden by caching; 2) accepting "not installed but available in
build cache" as always being a valid reason for a stale package, as go
list does not try to figure out an underlying reason for why a package
is stale when it finds it in the build cache but not installed.

Updates #24436

Change-Id: Iaeaa298f153451ec913a653dd4e6da79a33055bb
Reviewed-on: https://go-review.googlesource.com/123815
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-16 16:49:02 +00:00
Andrew Bonventre
3fcfb1f573 doc/go1.11: update with latest output from x/build/cmd/relnote
Change-Id: I4055ecc39b1b250cce7b32241f13dbc05567361f
Reviewed-on: https://go-review.googlesource.com/124015
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-16 15:32:40 +00:00