Commit Graph

31068 Commits

Author SHA1 Message Date
Russ Cox cedc511a6e [release-branch.go1.8] encoding/xml: fix incorrect indirect code in chardata, comment, innerxml fields
The new tests in this CL have been checked against Go 1.7 as well
and all pass in Go 1.7, with the one exception noted in a comment
(an intentional change to omitempty already present before this CL).

CL 15684 made the intentional change to omitempty.
This CL fixes bugs introduced along the way.

Most of these are corner cases that are arguably not that important,
but they've always worked all the way back to Go 1, and someone
cared enough to file #19063. The most significant problem found
while adding tests is that in the case of a nil *string field with
`xml:",chardata"`, the existing code silently stops processing not just
that field but the entire remainder of the struct.
Even if #19063 were not worth fixing, this chardata bug would be.

Fixes #19063.

Change-Id: I318cf8f9945e1a4615982d9904e109fde577ebf9
Reviewed-on: https://go-review.googlesource.com/36954
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
(cherry picked from commit 72aa757ddd)
Reviewed-on: https://go-review.googlesource.com/37016
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2017-02-15 14:31:02 +00:00
Daniel Theophanes ae13ccfd6d [release-branch.go1.8] database/sql: convert test timeouts to explicit waits with checks
When testing context cancelation behavior do not rely on context
timeouts. Use explicit checks in all such tests. In closeDB
convert the simple check for zero open conns with a wait loop
for zero open conns.

Fixes #19024
Fixes #19041

Change-Id: Iecfcc4467e91249fceb21ffd1f7c62c58140d8e9
Reviewed-on: https://go-review.googlesource.com/36902
Run-TryBot: Daniel Theophanes <kardianos@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-on: https://go-review.googlesource.com/36917
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Daniel Theophanes <kardianos@gmail.com>
2017-02-13 19:22:34 +00:00
Michael Hudson-Doyle 7cec9a583d [release-branch.go1.8] reflect: clear ptrToThis in Ptr when allocating result on heap
Otherwise, calling PtrTo on the result will fail.

Fixes #19003

Change-Id: I8d7d1981a5d0417d5aee52740469d71e90734963
Reviewed-on: https://go-review.googlesource.com/36731
Run-TryBot: Michael Hudson-Doyle <michael.hudson@canonical.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-on: https://go-review.googlesource.com/36718
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-02-10 17:53:40 +00:00
Daniel Theophanes d84dee069a [release-branch.go1.8] database/sql: ensure driverConns are closed if not returned to pool
Previously if a connection was requested but timed out during the
request and when acquiring the db.Lock the connection request
is fulfilled and the request is unable to be returned to the
connection pool, then then driver connection would not be closed.

No tests were added or modified because I was unable to determine
how to trigger this situation without something invasive.

Change-Id: I9d4dc680e3fdcf63d79d212174a5b8b313f363f1
Reviewed-on: https://go-review.googlesource.com/36641
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-on: https://go-review.googlesource.com/36714
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-02-10 17:53:36 +00:00
Daniel Theophanes f1e44a4b74 [release-branch.go1.8] database/sql: do not exhaust connection pool on conn request timeout
Previously if a context was canceled while it was waiting for a
connection request, that connection request would leak.

To prevent this remove the pending connection request if the
context is canceled and ensure no connection has been sent on the channel.
This requires a change to how the connection requests are represented in the DB.

Fixes #18995

Change-Id: I9a274b48b8f4f7ca46cdee166faa38f56d030852
Reviewed-on: https://go-review.googlesource.com/36563
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-on: https://go-review.googlesource.com/36613
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-02-10 17:53:29 +00:00
Daniel Theophanes 3ade54063e [release-branch.go1.8] database/sql: record the context error in Rows if canceled
Previously it was intended that Rows.Scan would return
an error and Rows.Err would return nil. This was problematic
because drivers could not differentiate between a normal
Rows.Close or a context cancel close.

The alternative is to require drivers to return a Scan to return
an error if the driver is closed while there are still rows to be read.
This is currently not how several drivers currently work and may be
difficult to detect when there are additional rows.

At the same time guard the the Rows.lasterr and prevent a close
while a Rows operation is active.

For the drivers that do not have Context methods, do not check for
context cancelation after the operation, but before for any operation
that may modify the database state.

Fixes #18961

Change-Id: I49a25318ecd9f97a35d5b50540ecd850c01cfa5e
Reviewed-on: https://go-review.googlesource.com/36485
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-on: https://go-review.googlesource.com/36614
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-02-09 03:47:26 +00:00
Russ Cox 0545006bdb [release-branch.go1.8] crypto/x509: check for new tls-ca-bundle.pem last
We added CentOS 7's /etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem
to the list in response to #17549 - not being able to find any certs otherwise.

Now we have #18813, where CentOS 6 apparently has both that file
and /etc/pki/tls/certs/ca-bundle.crt, and the latter is complete while
the former is not.

Moving the new CentOS 7 file to the bottom of the list should fix both
problems: the CentOS 7 system that didn't have any of the other files
in the list will still find the new one, and existing systems will still
keep using what they were using instead of preferring the new path
that may or may not be complete on some systems.

Fixes #18813.

Change-Id: I5275ab67424b95e7210e14938d3e986c8caee0ba
Reviewed-on: https://go-review.googlesource.com/36429
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Adam Langley <agl@golang.org>
Reviewed-on: https://go-review.googlesource.com/36530
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-02-08 17:50:39 +00:00
Russ Cox 1363eeba65 [release-branch.go1.8] cmd/go, go/build: better defenses against GOPATH=GOROOT
Fixes #18863.

Change-Id: I0723563cd23728b0d43ebcc25979bf8d21e2a72c
Reviewed-on: https://go-review.googlesource.com/36427
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/36536
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-02-07 19:42:47 +00:00
Cherry Zhang 1edfd64761 [release-branch.go1.8] cmd/compile: do not use "oaslit" for global
The compiler did not emit write barrier for assigning global with
struct literal, like global = T{} where T contains pointer.

The relevant code path is:
walkexpr OAS var_ OSTRUCTLIT
    oaslit
        anylit OSTRUCTLIT
            walkexpr OAS var_ nil
            return without adding write barrier
    return true
break (without adding write barrier)

This CL makes oaslit not apply to globals. See also CL
https://go-review.googlesource.com/c/36355/ for an alternative
fix.

The downside of this is that it generates static data for zeroing
struct now. Also this only covers global. If there is any lurking
bug with implicit zeroing other than globals, this doesn't fix.

Fixes #18956.

Change-Id: Ibcd27e4fae3aa38390ffa94a32a9dd7a802e4b37
Reviewed-on: https://go-review.googlesource.com/36410
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
(cherry picked from commit 160914e33c)
Reviewed-on: https://go-review.googlesource.com/36531
2017-02-07 17:39:16 +00:00
Robert Griesemer 6eb0f5440e [release-branch.go1.8] cmd/compile/internal/syntax: avoid follow-up error for incorrect if statement
This is a follow-up on https://go-review.googlesource.com/36470
and leads to a more stable fix. The above CL relied on filtering
of multiple errors on the same line to avoid more than one error
for an `if` statement of the form `if a := 10 {}`. This CL avoids
the secondary error ("missing condition in if statement") in the
first place.

For #18915.

Change-Id: I8517f485cc2305965276c17d8f8797d61ef9e999
Reviewed-on: https://go-review.googlesource.com/36479
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-on: https://go-review.googlesource.com/36424
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-02-07 16:52:00 +00:00
Robert Griesemer c543cc353d [release-branch.go1.8] cmd/compile/internal/syntax: make a parser error "1.7 compliant"
For code such as

	if a := 10 { ...

the 1.7 compiler reported

	a := 10 used as value

while the 1.8 compiler reported

	invalid condition, tag, or type switch guard

Changed the error message to match the 1.7 compiler.

Fixes #18915.

Change-Id: I01308862e461922e717f9f8295a9db53d5a914eb
Reviewed-on: https://go-review.googlesource.com/36470
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-on: https://go-review.googlesource.com/36422
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-02-07 16:51:22 +00:00
David Crawshaw f0749fe163 [release-branch.go1.8] cmd/link: use external linking for PIE by default
Now `go test -buildmode=pie std -short` passes on linux/amd64.

Updates #18968

Change-Id: Ide21877713e00edc64c1700c950016d6bff8de0e
Reviewed-on: https://go-review.googlesource.com/36417
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-on: https://go-review.googlesource.com/36421
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Reviewed-by: Minux Ma <minux@golang.org>
2017-02-07 01:40:49 +00:00
Andrew Gerrand ba878ac0c8 [release-branch.go1.8] doc: remove inactive members of the CoC working group
Dave and Jason have moved on to other things.

Change-Id: I702d11bedfab1f47a33679a48c2309f49021229e
Reviewed-on: https://go-review.googlesource.com/36450
Reviewed-by: Dave Cheney <dave@cheney.net>
Reviewed-on: https://go-review.googlesource.com/36474
Reviewed-by: Andrew Gerrand <adg@golang.org>
2017-02-07 01:17:07 +00:00
Russ Cox 6177f6d448 [release-branch.go1.8] vendor/golang.org/x/crypto/curve25519: avoid loss of R15 in -dynlink mode
Original code fixed in https://go-review.googlesource.com/#/c/36359/.

Fixes #18820.

Change-Id: I060e6c9d0e312b4fd5d0674aff131055bf5cf61d
Reviewed-on: https://go-review.googlesource.com/36412
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Adam Langley <agl@golang.org>
Reviewed-on: https://go-review.googlesource.com/36414
Reviewed-by: Austin Clements <austin@google.com>
2017-02-06 21:57:50 +00:00
Cherry Zhang 67cd1fa780 [release-branch.go1.8] cmd/compile: do not fold large offset on ARM64
Fixes #18933.

Change-Id: I1ab524fdca006100ec6af572065b496f68d6a5c3
Reviewed-on: https://go-review.googlesource.com/36413
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-02-06 21:23:08 +00:00
Michael Munday 758a7281ab [release-branch.go1.8] cmd/compile: fix type propagation through s390x SSA rules
This CL fixes two issues:

1. Load ops were initially always lowered to unsigned loads, even
   for signed types. This was fine by itself however LoadReg ops
   (used to re-load spilled values) were lowered to signed loads
   for signed types. This meant that spills could invalidate
   optimizations that assumed the original unsigned load.

2. Types were not always being maintained correctly through rules
   designed to eliminate unnecessary zero and sign extensions.

Updates #18906 and fixes #18958 (backport of CL 36256 to 1.8).

Change-Id: Id44953b0f644cad047e8474edbd24e8a344ca9a7
Reviewed-on: https://go-review.googlesource.com/36350
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-02-06 16:41:29 +00:00
Alberto Donizetti 470704531d [release-branch.go1.8] testing: stop timeout-timer after running tests
Fixes #18845

Fixes #18870 (Go 1.8 backport)

Change-Id: Icdc3e2067807781e42f2ffc94d1824aed94d3713
Reviewed-on: https://go-review.googlesource.com/35956
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
(cherry picked from commit 7d8bfdde45)
Reviewed-on: https://go-review.googlesource.com/36125
2017-02-02 06:51:54 +00:00
Filippo Valsorda 648bb34484 [release-branch.go1.8] doc: mention SHA-256 CBC suites are off by default
Change-Id: I82c41bd1d82adda457ddb5dd08caf0647905da22
Reviewed-on: https://go-review.googlesource.com/36091
Reviewed-by: Matt Layher <mdlayher@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
(cherry picked from commit de479267ef)
Reviewed-on: https://go-review.googlesource.com/36130
2017-02-01 21:37:57 +00:00
Russ Cox d8d2f036a5 [release-branch.go1.8] all: final merge of master into Go 1.8 release branch
After this, we will merge some of the dev work like
type aliases and inlining into master, so any additional
changes for the Go 1.8 release will need to be cherry-picked,
not merged.

3e55059f cmd/dist: really skip the testsanitizers tests on Android
09496599 runtime: add explicit (void) in C to avoid GCC 7 problem
4cffe2b6 cmd/dist: use the target GOOS to skip the test for issue 18153
6bdb0c11 doc: update go1.8 release notes after TxOptions change
09096bd3 cmd/go: update alldocs after CL 35150
96ea0918 cmd/compile: use CMPWU for 32-bit or smaller unsigned Geq on ppc64{,le}
21a8db1c doc: document go1.7.5

Change-Id: I9e6a30c3fac43d4d4d15e93054ac00964c3ee958
2017-01-31 09:53:37 -05:00
Elias Naur 3e55059f30 cmd/dist: really skip the testsanitizers tests on Android
The test.bash script in misc/cgo/testsanitizers use GOOS, not GOHOSTOS.
Fix the dist check from gohostos to goos accordingly.

The error was masked on the builders because they run on a darwin host
where the sanitizers tests never ran.

With this change, the Android test suite completes successfully on
Android/amd64.

Change-Id: Id7690429f78c6ac7a26fc9118d913b719b565bb2
Reviewed-on: https://go-review.googlesource.com/35959
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-01-30 20:38:03 +00:00
Ian Lance Taylor 0949659952 runtime: add explicit (void) in C to avoid GCC 7 problem
This avoids errors like
    ./traceback.go:80:2: call of non-function C.f1

I filed https://gcc.gnu.org/PR79289 for the GCC problem. I think this
is a bug in GCC, and it may be fixed before the final GCC 7 release.
This CL is correct either way.

Fixes #18855.

Change-Id: I0785a7b7c5b1d0ca87b454b5eca9079f390fcbd4
Reviewed-on: https://go-review.googlesource.com/35919
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2017-01-30 19:27:49 +00:00
Elias Naur 4cffe2b604 cmd/dist: use the target GOOS to skip the test for issue 18153
Fixes (skips) the test on Android, where stdout/stderr are not
terminals.

Updates #18153

Change-Id: Ieca65150362a5c423747ad751e00f76f0b890746
Reviewed-on: https://go-review.googlesource.com/35957
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-01-29 23:31:20 +00:00
Daniel Theophanes 6bdb0c11c7 doc: update go1.8 release notes after TxOptions change
Missed the release notes when updating the sql API.

Fixes #18825

Change-Id: I89056d46939ad4fc99590f3434d2881f5764e1b6
Reviewed-on: https://go-review.googlesource.com/35915
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-01-29 00:49:56 +00:00
Alberto Donizetti 09096bd3eb cmd/go: update alldocs after CL 35150
Author of CL 35150 forgot to run mkalldocs.sh to update
the autogenerated alldocs.go

Change-Id: Ib824562db6044702456a221a8c6f9af412927a98
Reviewed-on: https://go-review.googlesource.com/35952
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-01-28 20:18:44 +00:00
Michael Munday 96ea0918e6 cmd/compile: use CMPWU for 32-bit or smaller unsigned Geq on ppc64{,le}
Fixes #18808.

Change-Id: I49b266380b9d6804c9f6563ebac9c7c0e05f37f6
Reviewed-on: https://go-review.googlesource.com/35890
Run-TryBot: Michael Munday <munday@ca.ibm.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-01-27 16:04:04 +00:00
Chris Broadfoot 2a5f65a98c [release-branch.go1.8] go1.8rc3
Change-Id: Ie306bb5355f56113356fc141f3c1a56872b39f9e
Reviewed-on: https://go-review.googlesource.com/35836
Reviewed-by: Chris Broadfoot <cbro@golang.org>
2017-01-26 17:42:08 +00:00
Chris Broadfoot 21a8db1c5f doc: document go1.7.5
Change-Id: Ic8d4e971edebba9412f2e7c3d3c29f296c4977ff
Reviewed-on: https://go-review.googlesource.com/35833
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-01-26 17:35:50 +00:00
Chris Broadfoot 2f6c20b46c [release-branch.go1.8] all: merge master into release-branch.go1.8
78860b2ad2 cmd/go: don't reject ./... matching top-level file outside GOPATH
2b283cedef database/sql: fix race when canceling queries immediately
1cf08182f9 go/printer: fix format with leading comments in composite literal
b531eb3062 runtime: reorder modules so main.main comes first
165cfbc409 database/sql: let tests wait for db pool to come to expected state
ea73649343 doc: update gccgo docs
1db16711f5 doc: clarify what to do with Go 1.4 when installing from source
3717b429f2 doc: note that plugins are not fully baked
98842cabb6 net/http: don't send body on redirects for 301, 302, 303 when GetBody is set
314180e7f6 net/http: fix a nit
aad06da2b9 cmd/link: mark DWARF function symbols as reachable
be9dcfec29 doc: mention testing.MainStart signature change
a96e117a58 runtime: amd64, use 4-byte ops for memmove of 4 bytes
4cce27a3fa cmd/compile: fix constant propagation through s390x MOVDNE instructions
1be957d703 misc/cgo/test: pass current environment to syscall.Exec
ec654e2251 misc/cgo/test: fix test when using GCC 7
256a605faa cmd/compile: don't use nilcheck information until the next block
e8d5989ed1 cmd/compile: fix compilebench -alloc
ea7d9e6a52 runtime: check for nil g and m in msanread

Change-Id: I61d508d4f0efe4b72e7396645c8ad6088d2bfa6e
2017-01-26 09:24:31 -08:00
Ian Lance Taylor 78860b2ad2 cmd/go: don't reject ./... matching top-level file outside GOPATH
This unwinds a small part of CL 31668: we now accept "./." in cleanImport.

Fixes #18778.

Change-Id: Ia7f1fde1cafcea3cc9e0b597a95a0e0bb410a3ed
Reviewed-on: https://go-review.googlesource.com/35646
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2017-01-26 14:41:37 +00:00
Daniel Theophanes 2b283cedef database/sql: fix race when canceling queries immediately
Previously the following could happen, though in practice it would
be rare.

Goroutine 1:
	(*Tx).QueryContext begins a query, passing in userContext

Goroutine 2:
	(*Tx).awaitDone starts to wait on the context derived from the passed in context

Goroutine 1:
	(*Tx).grabConn returns a valid (*driverConn)
	The (*driverConn) passes to (*DB).queryConn

Goroutine 3:
	userContext is canceled

Goroutine 2:
	(*Tx).awaitDone unblocks and calls (*Tx).rollback
	(*driverConn).finalClose obtains dc.Mutex
	(*driverConn).finalClose sets dc.ci = nil

Goroutine 1:
	(*DB).queryConn obtains dc.Mutex in withLock
	ctxDriverPrepare accepts dc.ci which is now nil
	ctxCriverPrepare panics on the nil ci

The fix for this is to guard the Tx methods with a RWLock
holding it exclusivly when closing the Tx and holding a read lock
when executing a query.

Fixes #18719

Change-Id: I37aa02c37083c9793dabd28f7f934a1c5cbc05ea
Reviewed-on: https://go-review.googlesource.com/35550
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-01-26 06:25:37 +00:00
Robert Griesemer 1cf08182f9 go/printer: fix format with leading comments in composite literal
This fix is less pervasive than it seems. The only change affecting
formatting is on printer.go:760. The remaining changes have no effect
on formatting since the value of p.level is ignored except on this
specific line.

The remaining changes are:
- renamed adjBlock to funcBody since that's how it is used
- introduced new printer field 'level' tracking the composite
  literal nesting level
- update/restore the composite literal nesting level as needed

Fixes #18782.

Change-Id: Ie833a9b5a559c4ec0f2eef2c5dc97aa263dca53a
Reviewed-on: https://go-review.googlesource.com/35811
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-01-26 00:06:54 +00:00
David Crawshaw b531eb3062 runtime: reorder modules so main.main comes first
Modules appear in the moduledata linked list in the order they are
loaded by the dynamic loader, with one exception: the
firstmoduledata itself the module that contains the runtime.
This is not always the first module (when using -buildmode=shared,
it is typically libstd.so, the second module).

The order matters for typelinksinit, so we swap the first module
with whatever module contains the main function.

Updates #18729

This fixes the test case extracted with -linkshared, and now

	go test -linkshared encoding/...

passes. However the original issue about a plugin failure is not
yet fixed.

Change-Id: I9f399ecc3518e22e6b0a350358e90b0baa44ac96
Reviewed-on: https://go-review.googlesource.com/35644
Run-TryBot: David Crawshaw <crawshaw@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Michael Hudson-Doyle <michael.hudson@canonical.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-01-25 22:33:57 +00:00
Daniel Theophanes 165cfbc409 database/sql: let tests wait for db pool to come to expected state
Slower builders were failing TestQueryContext because the cancel
and return to conn pool happens async. TestQueryContext already
uses a wait method for this reason. Use the same method for
other context tests.

Fixes #18759

Change-Id: I84cce697392b867e4ebdfadd38027a06ca14655f
Reviewed-on: https://go-review.googlesource.com/35750
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-01-25 21:57:28 +00:00
Ian Lance Taylor ea73649343 doc: update gccgo docs
Update docs on correspondence between Go releases and GCC releases.

Update C type that corresponds to Go type `int`.

Drop out of date comments about Ubuntu and RTEMS.

Change-Id: Ic1b5ce9f242789af23ec3b7e7a64c9d257d6913e
Reviewed-on: https://go-review.googlesource.com/35631
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-01-24 21:21:59 +00:00
Ian Lance Taylor 1db16711f5 doc: clarify what to do with Go 1.4 when installing from source
You have to actually run make.bash (or make.bat).

Update #18771.

Change-Id: Ie6672a4e4abde0150c1ae57cabb1222de2c78716
Reviewed-on: https://go-review.googlesource.com/35632
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-01-24 21:03:41 +00:00
Brad Fitzpatrick 3717b429f2 doc: note that plugins are not fully baked
Change-Id: I6341b8cce0b4a9922928f73f8b459cbb9ec25e79
Reviewed-on: https://go-review.googlesource.com/35571
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
2017-01-24 20:10:28 +00:00
Brad Fitzpatrick 98842cabb6 net/http: don't send body on redirects for 301, 302, 303 when GetBody is set
The presence of Request.GetBody being set on a request was causing all
redirected requests to have a body, even if the redirect status didn't
warrant one.

This bug came from 307/308 support (https://golang.org/cl/29852) which
removed the line that set req.Body to nil after POST/PUT redirects.

Change-Id: I2a4dd5320f810ae25cfd8ea8ca7c9700e5dbd369
Reviewed-on: https://go-review.googlesource.com/35633
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
2017-01-24 19:56:23 +00:00
Mikio Hara 314180e7f6 net/http: fix a nit
Change-Id: I31fa5f906ad2e8dc475dbbeb91f568f91e16861b
Reviewed-on: https://go-review.googlesource.com/35514
Run-TryBot: Mikio Hara <mikioh.mikioh@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-01-24 16:48:33 +00:00
Ian Lance Taylor aad06da2b9 cmd/link: mark DWARF function symbols as reachable
Otherwise we don't emit any required ELF relocations when doing an
external link, because elfrelocsect skips unreachable symbols.

Fixes #18745.

Change-Id: Ia3583c41bb6c5ebb7579abd26ed8689370311cd6
Reviewed-on: https://go-review.googlesource.com/35590
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2017-01-24 03:37:56 +00:00
Brad Fitzpatrick be9dcfec29 doc: mention testing.MainStart signature change
Fixes #18766

Change-Id: Ic0f72f3b7bbccd0546692993c4ed414f8c88c1c6
Reviewed-on: https://go-review.googlesource.com/35573
Reviewed-by: Russ Cox <rsc@golang.org>
2017-01-24 00:28:27 +00:00
Keith Randall a96e117a58 runtime: amd64, use 4-byte ops for memmove of 4 bytes
memmove used to use 2 2-byte load/store pairs to move 4 bytes.
When the result is loaded with a single 4-byte load, it caused
a store to load fowarding stall.  To avoid the stall,
special case memmove to use 4 byte ops for the 4 byte copy case.

We already have a special case for 8-byte copies.
386 already specializes 4-byte copies.
I'll do 2-byte copies also, but not for 1.8.

benchmark                 old ns/op     new ns/op     delta
BenchmarkIssue18740-8     7567          4799          -36.58%

3-byte copies get a bit slower.  Other copies are unchanged.
name         old time/op   new time/op   delta
Memmove/3-8   4.76ns ± 5%   5.26ns ± 3%  +10.50%  (p=0.000 n=10+10)

Fixes #18740

Change-Id: Iec82cbac0ecfee80fa3c8fc83828f9a1819c3c74
Reviewed-on: https://go-review.googlesource.com/35567
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2017-01-23 19:39:22 +00:00
Michael Munday 4cce27a3fa cmd/compile: fix constant propagation through s390x MOVDNE instructions
The constant propagation rules selected the wrong operand to
propagate. So MOVDNE (move if not equal) propagated operands as if
it were a MOVDEQ (move if equal).

Fixes #18735.

Change-Id: I87ac469172f9df7d5aabaf7106e2936ce54ae202
Reviewed-on: https://go-review.googlesource.com/35498
Run-TryBot: Michael Munday <munday@ca.ibm.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-01-21 03:20:55 +00:00
Ian Lance Taylor 1be957d703 misc/cgo/test: pass current environment to syscall.Exec
This is needed for typical tests with gccgo, as it passes the
LD_LIBRARY_PATH environment variable to the new program.

Change-Id: I9bf4b0dbdff63f5449c7fcb8124eaeab10ed7f34
Reviewed-on: https://go-review.googlesource.com/35481
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-01-20 21:12:54 +00:00
Ian Lance Taylor ec654e2251 misc/cgo/test: fix test when using GCC 7
With GCC 7 (not yet released), cgo fails with errors like

./sigaltstack.go:65:8: call of non-function C.restoreSignalStack

I do not know precisely why. Explicitly declaring that there are no
arguments to the static function is a simple fix for the debug info.

Change-Id: Id96e1cb1e55ee37a9f1f5ad243d7ee33e71584ac
Reviewed-on: https://go-review.googlesource.com/35480
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-01-20 21:12:19 +00:00
Keith Randall 256a605faa cmd/compile: don't use nilcheck information until the next block
When nilcheck runs, the values in a block are not in any particular
order.  So any facts derived from examining the blocks shouldn't be
used until we reach the next block.

This is suboptimal as it won't eliminate nil checks within a block.
But it's probably a better fix for now as it is a much smaller change
than other strategies for fixing this bug.

nilptr3.go changes are mostly because for this pattern:
  _ = *p
  _ = *p
either nil check is fine to keep, and this CL changes which one
the compiler tends to keep.
There are a few regressions from code like this:
  _ = *p
  f()
  _ = *p
For this pattern, after this CL we issue 2 nil checks instead of one.
(For the curious, this happens because intra-block nil check
 elimination now falls to CSE, not nilcheck proper.  The former
 pattern has two nil checks with the same store argument.  The latter
 pattern has two nil checks with different store arguments.)

Fixes #18725

Change-Id: I3721b494c8bc9ba1142dc5c4361ea55c66920ac8
Reviewed-on: https://go-review.googlesource.com/35485
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-01-20 20:21:55 +00:00
Josh Bleecher Snyder e8d5989ed1 cmd/compile: fix compilebench -alloc
pprof.WriteHeapProfile is shorthand for
pprof.Lookup("heap").WriteTo(f, 0).
The second parameter is debug.
If it is non-zero, pprof writes legacy-format
pprof output, which compilebench can parse.

Fixes #18641

Change-Id: Ica69adeb9809e9b5933aed943dcf4a07910e43fc
Reviewed-on: https://go-review.googlesource.com/35484
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2017-01-20 18:57:23 +00:00
Bryan C. Mills ea7d9e6a52 runtime: check for nil g and m in msanread
fixes #18707.

Change-Id: Ibc4efef01197799f66d10bfead22faf8ac00473c
Reviewed-on: https://go-review.googlesource.com/35452
Run-TryBot: Bryan Mills <bcmills@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-01-19 23:06:54 +00:00
Chris Broadfoot 59f181b6fd [release-branch.go1.8] go1.8rc2
Change-Id: Ifcf2e13b962aa10280df8ca76cb21b37e3533f8f
Reviewed-on: https://go-review.googlesource.com/35475
Run-TryBot: Chris Broadfoot <cbro@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-01-19 20:58:37 +00:00
Chris Broadfoot d18087cb25 [release-branch.go1.8] all: merge master into release-branch.go1.8
6593d8650d go/ast: fix Object's doc comment about Data
c1730ae424 runtime: force workers out before checking mark roots
d10eddcba3 testing: make parallel t.Run safe again
2c8b70eacf crypto/x509: revert SystemCertPool implementation for Windows
fcfd91858b doc/go1.8: document Plan 9 requirements
81a61a96c9 runtime: for plugins, don't add duplicate itabs
f674537cc9 README.md: update and simplify
d8711919db cmd/go: fix bug help message
48d8edb5b2 crypto/tls: disable CBC cipher suites with SHA-256 by default
92ecd78933 cmd/compile: add ZeroWB case in writebarrier
787125abab doc: 2017 is the Year of the Gopher
5b708a6b6a cmd/compile: lvalues are only required for == when calling runtime fns
e83d506714 vendor/golang_org/x/crypto/poly1305: revendor to pick up fix for #18673
76f981c8d8 net/http: skip TestServerHijackGetsBackgroundByte on Plan 9
e395e3246a net/http: skip TestServerHijackGetsBackgroundByte_big on Plan 9
6a3c6c0de8 net/http: add another hijack-after-background-read test
467109bf56 all: test adjustments for the iOS builder
b2a3b54b95 net/http: make sure Hijack's bufio.Reader includes pre-read background byte
593ea3b360 cmd/go, misc: rework cwd handling for iOS tests
0642b8a2f1 syscall: export Fsid.X__val on s390x
4601eae6ba doc/gdb: mention GOTRACEBACK=crash
4c4c5fc7a3 misc/cgo/testplugin: test that types and itabs are unique
22689c4450 reflect: keep makeFuncImpl live across makeFuncStub
9cf06ed6cd cmd/link: only exclude C-only symbols on darwin
9c3630f578 compress/flate: avoid large stack growth in fillDeflate
4f0aac52d9 cmd/go: add comment about SIGUSR2 on iOS
333f764df3 cmd/go, misc: switch from breakpoint to SIGUSR2
39e31d5ec0 doc/go1.8: update timezone database version
08da8201ca misc/cgo/testshared: test that types and itabs are unique
fdde7ba2a2 runtime: avoid clobbering C callee-save register in cgoSigtramp
f65abf6ddc cmd/compile: hide testdclstack behind debug flag
641ef2a733 compress/gzip: skip TestGZIPFilesHaveZeroMTimes on non-builders
0724aa813f crypto/dsa: gofmt
ac05542985 net/http: deflake TestRetryIdempotentRequestsOnError
b842c9aac7 doc: remove inline styles

Change-Id: I642c056732fe1e8081e9d73e086e38ea0b2568cc
2017-01-19 12:36:53 -08:00
Hironao OTSUBO 6593d8650d go/ast: fix Object's doc comment about Data
The doc comment about the Data field of go/ast.Object reflects its old
behavior, from when the go/types typechecker depended on ast.Objects.

Since when the doc was written, the behavior has changed in
https://golang.org/cl/7058060 and https://golang.org/cl/7096048 .

Fixes #18631

Change-Id: I10fc3e31cfbf7b303eec44150df917f6eb285f90
Reviewed-on: https://go-review.googlesource.com/35075
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-01-19 04:55:19 +00:00