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Commit Graph

26112 Commits

Author SHA1 Message Date
Daniel Speichert
8ae584f21e net/textproto: accept multi-line error messages
Ads documentation for both formats of messages accepted by
ReadResponse(). Validity of message should not be altered by
the validation process. On message with unexpected code,
a properly formatted message was not fully read.

Fixes #10230

Change-Id: Ic0b473059a68ab624ce0525e359d0f5d0b8d2117
Reviewed-on: https://go-review.googlesource.com/18172
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-08 16:32:42 +00:00
Russ Cox
bb8c2e19a7 net: ensure that malformed domain names report a consistent error
Previously it depended on whether we were using the Go resolver or the Cgo resolver.

Fixes #12421.

Change-Id: Ib162e336f30f736d7244e29d96651c3be11fc3cd
Reviewed-on: https://go-review.googlesource.com/18383
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-08 16:19:20 +00:00
Alex Brainman
d75acd67ec internal/syscall/windows: correct GetACP and MultiByteToWideChar
CL 4310 introduced these functions, but their
implementation does not match with their published
documentation. Correct the implementation.

Change-Id: I285e41f9c7c5fc4e550ff59b0adb8b2bcbf6737a
Reviewed-on: https://go-review.googlesource.com/17997
Reviewed-by: Yasuhiro MATSUMOTO <mattn.jp@gmail.com>
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-08 16:15:59 +00:00
Ian Lance Taylor
5755c011de encoding/json: doc: Decode only writes to exported fields
Fixes #13867.

Change-Id: I6c0a6c64369681840df60f63036c2eece27de8b8
Reviewed-on: https://go-review.googlesource.com/18394
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-08 16:15:25 +00:00
Russ Cox
99ed71a02c database/sql: guard against panics in driver.Stmt implementation
For #13677, but there is more to do.

Change-Id: Id1af999dc972d07cdfc771e5855a1a7dca47ca96
Reviewed-on: https://go-review.googlesource.com/18046
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-08 15:49:12 +00:00
Russ Cox
81adfa508a runtime: allow signal.Ignore of user-generated throwing signals
Today, signal.Ignore(syscall.SIGTRAP) does nothing
while signal.Notify(make(chan os.Signal), syscall.SIGTRAP)
correctly discards user-generated SIGTRAPs.
The same applies to any signal that we throw on.

Make signal.Ignore work for these signals.

Fixes #12906.

Change-Id: Iba244813051e0ce23fa32fbad3e3fa596a941094
Reviewed-on: https://go-review.googlesource.com/18348
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-01-08 15:34:03 +00:00
Russ Cox
331a6055ab runtime: fix up OS X kernel bug sending user-generated SIGTRAP
OS X unconditionally sets si_code = TRAP_BRKPT when sending SIGTRAP,
even if it was generated by kill -TRAP and not a breakpoint.
Correct the si_code by looking to see if the PC is after a breakpoint.

For #12906.

Change-Id: I998c2499f7f12b338e607282a325b045f1f4f690
Reviewed-on: https://go-review.googlesource.com/18347
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-01-08 15:33:48 +00:00
Russ Cox
6da608206c Revert "runtime: make NumGoroutine and Stack agree not to include system goroutines"
This reverts commit c5bafc8281.

Change-Id: Ie7030c978c6263b9e996d5aa0e490086796df26d
Reviewed-on: https://go-review.googlesource.com/18431
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-08 15:31:15 +00:00
Russ Cox
c5bafc8281 runtime: make NumGoroutine and Stack agree not to include system goroutines
Before, NumGoroutine counted system goroutines and Stack (usually) didn't show them,
which was inconsistent and confusing.

To resolve which way they should be consistent, it seems like

	package main
	import "runtime"
	func main() { println(runtime.NumGoroutine()) }

should print 1 regardless of internal runtime details. Make it so.

Fixes #11706.

Change-Id: I6bfe26a901de517728192cfb26a5568c4ef4fe47
Reviewed-on: https://go-review.googlesource.com/18343
Reviewed-by: Austin Clements <austin@google.com>
2016-01-08 15:25:00 +00:00
Russ Cox
20d745c57c encoding/base64: fix streaming decode of padding-free base64
Fixes #13384.

Change-Id: Id9e827acddc8de139f93c5de0c6486bc4334c7d4
Reviewed-on: https://go-review.googlesource.com/18330
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-01-08 15:07:45 +00:00
Ian Lance Taylor
8971d61835 os/signal: clarify signal doc
Based on comments from Thomas Bushnell.

Update #9896.

Change-Id: I603b1382d17dff00b5d18f17f8b5d011503e9e4c
Reviewed-on: https://go-review.googlesource.com/18365
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-08 15:01:09 +00:00
David du Colombier
161f2e85ee os: fix rename on Plan 9
Rename should remove newname if the file already exists
and is not a directory.

Fixes #13844.

Change-Id: I85a5cc28e8d161637a8bc1de33f4a637d9154cd1
Reviewed-on: https://go-review.googlesource.com/18291
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-08 14:22:47 +00:00
Brad Fitzpatrick
9a2d717fa9 A+C: manual updates
Add Colin Cross (Google CLA)
Add Quentin Perez (Individual CLA)
Add Andy Balholm (Individual CLA)
Add Dirk Gadsden (Individual CLA)
Add Derek Che (Yahoo CLA)

And:

Add CL Sung (Individual CLA), but where gerrit is using personal email
address with CLA signed, but the git commit itself is using an
unverified htc.com address. The commit is:
    https://github.com/golang/oauth2/commit/099e4f0
For github user https://github.com/clsung which says "Self-Employed"
and "clsung@gmail.com". Perhaps the self-employed part is new
since Sep 10, 2014.

Change-Id: Ic1130fb79d167259a9bb76e3be56b9c8ad6b95ca
Reviewed-on: https://go-review.googlesource.com/18369
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-01-08 06:02:39 +00:00
Brad Fitzpatrick
0421e78f05 net/http: fix too-strict validation of server header values
As Andy Balholm noted in #11207:

"RFC2616 §4.2 says that a header's field-content can consist of *TEXT,
and RFC2616 §2.2 says that TEXT is <any OCTET except CTLs, but
including LWS>, so that would mean that bytes greater than 128 are
allowed."

This is a partial rollback of the strictness from
https://golang.org/cl/11207 (added in the Go 1.6 dev cycle, only
released in Go 1.6beta1)

Fixes #11207

Change-Id: I3a752a7941de100e4803ff16a5d626d5cfec4f03
Reviewed-on: https://go-review.googlesource.com/18374
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-08 06:01:23 +00:00
Robert Griesemer
ee566d53ad go/doc: don't drop "factory" functions with dot-imported result types
Fixes #13742.

Change-Id: I7c8b51b60e31402bf708bf8d70e07fd06295e8ce
Reviewed-on: https://go-review.googlesource.com/18393
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-08 04:10:51 +00:00
Ian Lance Taylor
d91ec5bb40 cmd/cgo, runtime: recognize unsafe.Pointer(&s[0]) in cgo pointer checks
It's fairly common to call cgo functions with conversions to
unsafe.Pointer or other C types.  Apply the simpler checking of address
expressions when possible when the address expression occurs within a
type conversion.

Change-Id: I5187d4eb4d27a6542621c396cad9ee4b8647d1cd
Reviewed-on: https://go-review.googlesource.com/18391
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-08 03:56:30 +00:00
Russ Cox
e84dad3f6e time: restore old error text for day out of range
Go 1.5 and earlier said "day out of range".
As part of working on this code it morphed into "day of month out of range".
To avoid churn in the output restore the old text.

This fixes some tests reported privately.

Change-Id: If179676cd49f9a471a9441fec2f5220c85eb0799
Reviewed-on: https://go-review.googlesource.com/18386
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-08 03:15:20 +00:00
Russ Cox
6b9298a2c5 net: LookupAddr("127.0.0.1") is "localhost" not "localhost."
Fixes #13564.

Change-Id: I30c827ef4a112fee21b8493a67d0227109e35072
Reviewed-on: https://go-review.googlesource.com/18384
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-08 03:14:47 +00:00
Brad Fitzpatrick
acc7161320 net/http: document GODEBUG settings, update bundled http2
Document the three GODEBUG environment variables in the package doc.

Updates the bundled http2 to x/net git rev 415f1917
for https://golang.org/cl/18372.

Fixes #13611

Change-Id: I3116c5d7de70d3d15242d7198f3758b1fb7d94b9
Reviewed-on: https://go-review.googlesource.com/18373
Reviewed-by: Andrew Gerrand <adg@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-01-08 00:56:28 +00:00
Brad Fitzpatrick
40a26c9281 net/http: add some tests around sending & receiving star requests
I thought there was still work to do in http2 for this, but I guess
not: the work for parsing them is in net/url (used by http2) and the
handling of OPTIONS * is already in net/http serverHandler, also used
by http2.

But keep the tests.

Change-Id: I566dd0a03cf13c9ea8e735c6bd32d2c521ed503b
Reviewed-on: https://go-review.googlesource.com/18368
Reviewed-by: Blake Mizerany <blake.mizerany@gmail.com>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-07 23:06:17 +00:00
Matthew Dempsky
27691fa467 cmd/compile: recognize !typedbool is typed
Adding the evconst(n) call for OANDAND and OOROR in
golang.org/cl/18262 was originally just to parallel the above iscmp
branch, but upon further inspection it seemed odd that removing it
caused test/fixedbugs/issue6671.go's

    var b mybool
    // ...
    b = bool(true) && true // ERROR "cannot use"

to start failing (i.e., by not emitting the expected "cannot use"
error).

The problem is that evconst(n)'s settrue and setfalse paths always
reset n.Type to idealbool, even for logical operators where n.Type
should preserve the operand type.  Adding the evconst(n) call for
OANDAND/OOROR inadvertantly worked around this by turning the later
evconst(n) call at line 2167 into a noop, so the "n.Type = t"
assignment at line 739 would preserve the operand type.

However, that means evconst(n) was still clobbering n.Type for ONOT,
so declarations like:

    const _ bool = !mybool(true)

were erroneously accepted.

Update #13821.

Change-Id: I18e37287f05398fdaeecc0f0d23984e244f025da
Reviewed-on: https://go-review.googlesource.com/18362
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-07 21:43:47 +00:00
Austin Clements
3f22adecc7 runtime: fix sigprof stack barrier locking
f90b48e intended to require the stack barrier lock in all cases of
sigprof that walked the user stack, but got it wrong. In particular,
if sp < gp.stack.lo || gp.stack.hi < sp, tracebackUser would be true,
but we wouldn't acquire the stack lock. If it then turned out that we
were in a cgo call, it would walk the stack without the lock.

In fact, the whole structure of stack locking is sigprof is somewhat
wrong because it assumes the G to lock is gp.m.curg, but all three
gentraceback calls start from potentially different Gs.

To fix this, we lower the gcTryLockStackBarriers calls much closer to
the gentraceback calls. There are now three separate trylock calls,
each clearly associated with a gentraceback and the locked G clearly
matches the G from which the gentraceback starts. This actually brings
the sigprof logic closer to what it originally was before stack
barrier locking.

This depends on "runtime: increase assumed stack size in
externalthreadhandler" because it very slightly increases the stack
used by sigprof; without this other commit, this is enough to blow the
profiler thread's assumed stack size.

Fixes #12528 (hopefully for real this time!).

For the 1.5 branch, though it will require some backporting. On the
1.5 branch, this will *not* require the "runtime: increase assumed
stack size in externalthreadhandler" commit: there's no pcvalue cache,
so the used stack is smaller.

Change-Id: Id2f6446ac276848f6fc158bee550cccd03186b83
Reviewed-on: https://go-review.googlesource.com/18328
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-07 19:40:38 +00:00
Austin Clements
fdf9b3c994 runtime: increase assumed stack size in externalthreadhandler
On Windows, externalthreadhandler currently sets the assumed stack
size for the profiler thread and the ctrlhandler threads to 8KB. The
actual stack size is determined by the SizeOfStackReserve field in the
binary set by the linker, which is currently at least 64KB (and
typically 128KB).

It turns out the profiler thread is running within a few words of the
8KB-(stack guard) bound set by externalthreadhandler. If it overflows
this bound, morestack crashes unceremoniously with an access
violation, which we then fail to handle, causing the whole process to
exit without explanation.

To avoid this problem and give us some breathing room, increase the
assumed stack size in externalthreadhandler to 32KB (there's some
unknown amount of stack already in use, so it's not safe to increase
this all the way to the reserve size).

We also document the relationships between externalthreadhandler and
SizeOfStackReserve to make this more obvious in the future.

Change-Id: I2f9f9c0892076d78e09827022ff0f2bedd9680a9
Reviewed-on: https://go-review.googlesource.com/18304
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Minux Ma <minux@golang.org>
2016-01-07 19:40:32 +00:00
Austin Clements
b50b24837d runtime: don't ignore success of cgo profiling tracebacks
If a sigprof happens during a cgo call, we traceback from the entry
point of the cgo call. However, if the SP is outside of the G's stack,
we'll then ignore this traceback, even if it was successful, and
overwrite it with just _ExternalCode.

Fix this by accepting any successful traceback, regardless of whether
we got it from a cgo entry point or from regular Go code.

Fixes #13466.

Change-Id: I5da9684361fc5964f44985d74a8cdf02ffefd213
Reviewed-on: https://go-review.googlesource.com/18327
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-07 19:40:26 +00:00
Russ Cox
ebf1f0fcbe net: document ":port" syntax in Dial, Listen, ListenPacket
Change-Id: Ideb4bd9ffb1b5f1aef7d94ff791a262f54a650d5
Reviewed-on: https://go-review.googlesource.com/18344
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-01-07 19:14:43 +00:00
Russ Cox
cd91c3b036 runtime: add pointer to net and net/http for more GODEBUG settings
net has GODEBUG text already.
net/http still needs it (leaving for Brad).

For #13611.

Change-Id: Icea1027924a23a687cbbe4001985e8c6384629d7
Reviewed-on: https://go-review.googlesource.com/18346
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-01-07 19:14:12 +00:00
Brad Fitzpatrick
305b4baf41 net/http: update bundled http2, fixes TestConcurrentReadWriteReqBody_h2
Updates http2 to x/net git rev 520af5de654d for
https://golang.org/cl/18370

Fixes #13659

Change-Id: I920eaff6036ac22c500a97449826c6b12f873d7f
Reviewed-on: https://go-review.googlesource.com/18371
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
2016-01-07 06:07:06 +00:00
Michael McGreevy
002e658a91 net/http: Minor fix to error messages in test.
Change-Id: I995ac0559f89110662d79d136d710ef3a0bb1505
Reviewed-on: https://go-review.googlesource.com/18351
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-07 05:00:50 +00:00
Russ Cox
f962fc0820 doc: mention that Go no longer calls timeBeginPeriod(1) on Windows
Fixes #13731.

Change-Id: Iaf70a8b41c947f0d86013808564112ab676136e3
Reviewed-on: https://go-review.googlesource.com/18345
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2016-01-07 04:16:14 +00:00
Michael Hudson-Doyle
b00105d878 doc: update 1.6 release notes with buildmode progress
Fixes #13358

Change-Id: I57ed50c2610cab11fb3d9749f9e7d4a37daa7977
Reviewed-on: https://go-review.googlesource.com/18276
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-07 04:15:08 +00:00
Russ Cox
73ba846c6a doc: remove note about installing from source for ARM
Now there are ARM downloads too.

Change-Id: I236381508c69d56748e672d184b92caa715e81ae
Reviewed-on: https://go-review.googlesource.com/18342
Reviewed-by: Andrew Gerrand <adg@golang.org>
2016-01-07 04:12:01 +00:00
Brad Fitzpatrick
67fa7970c5 net/http: update bundled http2; fixes TestTransportAndServerSharedBodyRace_h2
Update bundled http2 to git rev d1ba260648 (https://golang.org/cl/18288).

Fixes the flaky TestTransportAndServerSharedBodyRace_h2.

Also adds some debugging to TestTransportAndServerSharedBodyRace_h2
which I hope won't ever be necessary again, but I know will be.

Fixes #13556

Change-Id: Ibcf2fc23ec0122dcac8891fdc3bd7f8acddd880e
Reviewed-on: https://go-review.googlesource.com/18289
Reviewed-by: Andrew Gerrand <adg@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-01-07 01:49:37 +00:00
Andrew Gerrand
e9fc522100 doc: show relevant test instructions on install page
Fixes golang/go#12490

Change-Id: I0861e62aaa589fc63217c83e9c227c17e35cda75
Reviewed-on: https://go-review.googlesource.com/18277
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-07 01:41:19 +00:00
Ian Lance Taylor
2586af47f6 misc/cgo/testcarchive,testcshared: deflake tests
After a failure on the build dashboard I tested testcarchive test 2 and
found that it failed an average of 1 in 475 runs on my laptop.  With
this change it ran over 50,000 times without failing.  I bumped up the
other iteration limits to correspond.

Change-Id: I0155c68161a2c2a09ae25c91e9269f1e8702628d
Reviewed-on: https://go-review.googlesource.com/18309
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-01-07 01:32:29 +00:00
Tamir Duberstein
24ef1d60f0 cmd/dist: improve isGitRepo to handle git "worktree"s
Simply checking the exit code of `git rev-parse --git-dir` should
suffice here, but that requires deviating from the infrastructure
provided by `run`, so I've left that for a future change.

Originally by Tamir Duberstein but updated by iant & rsc to add
the filepath.Join logic.

Fixes #11211 (again).

Change-Id: I6d29b5ae39ba456088ae1fb5d41014cb91c86897
Reviewed-on: https://go-review.googlesource.com/18323
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-01-07 01:23:05 +00:00
Russ Cox
fb142ee9b9 cmd/go: for go get -insecure, skip TLS certificate checking
The flag is already named -insecure. Make it more so.

If we're willing to accept HTTP, it's not much worse to accept
HTTPS man-in-the-middle attacks too. This allows servers
with self-signed certificates to work.

Fixes #13197.

Change-Id: Ia5491410bc886da0a26ef3bce4bf7d732f5e19e4
Reviewed-on: https://go-review.googlesource.com/18324
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-07 01:22:59 +00:00
Mikio Hara
c063e342f8 net/http, net/http/httputil: fix nits found by vet
Change-Id: Idf02428591f61dc58f654fdaf0e3a55f8b8a1060
Reviewed-on: https://go-review.googlesource.com/18350
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-07 01:01:33 +00:00
Russ Cox
4aedbf5be4 archive/zip: fix reading, writing of zip64 archives
Read zip files that contain only 64-bit header offset, not 64-bit sizes.
Fixes #13367.

Read zip files that contain completely unexpected Extra fields,
provided we do not need to find 64-bit size or header offset information there.
Fixes #13166.

Write zip file entries with 0xFFFFFFFF uncompressed data bytes
correctly (must use zip64 header, since that's the magic indicator).
Fixes new TestZip64EdgeCase. (Noticed while working on the CL.)

Change-Id: I84a22b3995fafab8052b99de8094a9f35a25de5b
Reviewed-on: https://go-review.googlesource.com/18317
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-07 00:44:04 +00:00
Russ Cox
5d8442aeaa os: document that Rename overwrites existing file
Fixes #13673.

Change-Id: I60d1603ca0dfd2ae136117e0f89cee4b6fc6c3d3
Reviewed-on: https://go-review.googlesource.com/18332
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-01-07 00:41:10 +00:00
Russ Cox
dba926d7a3 go/build: allow @ in #cgo directives for OS X
Fixes #13720.

Change-Id: I2e48454696f37db419370630f913590c435cd9f0
Reviewed-on: https://go-review.googlesource.com/18331
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
2016-01-07 00:38:58 +00:00
Ian Lance Taylor
bd7086996c doc: fix incorrect example in asm.html
Fixes #13845.

Change-Id: Ie83179b2d20c47a0296645d9e2fdc43271be495a
Reviewed-on: https://go-review.googlesource.com/18307
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-06 23:17:25 +00:00
Ian Lance Taylor
70c9a8187a runtime: set new m signal mask to program startup mask
We were setting the signal mask of a new m to the signal mask of the m
that created it.  That failed when that m happened to be the one created
by ensureSigM, which sets its signal mask to only include the signals
being caught by os/signal.Notify.

Fixes #13164.
Update #9896.

Change-Id: I705c196fe9d11754e10bab9e9b2e7530ecdfa367
Reviewed-on: https://go-review.googlesource.com/18064
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-06 23:14:46 +00:00
Ian Lance Taylor
a7cad52e04 runtime: preserve signal stack when calling Go on C thread
When calling a Go function on a C thread, if the C thread already has an
alternate signal stack, use that signal stack instead of installing a
new one.

Update #9896.

Change-Id: I62aa3a6a4a1dc4040fca050757299c8e6736987c
Reviewed-on: https://go-review.googlesource.com/18108
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-06 23:11:42 +00:00
Brad Fitzpatrick
62c280ac1c runtime/pprof: skip TestStackBarrierProfiling on dragonfly too
Just saw a few dragonfly failures here.

I'm tempted to preemptively add plan9 here too, but I'll wait until
I see it fail.

Change-Id: Ic99fc088dbfd1aa21f509148aee98ccfe7f640bf
Reviewed-on: https://go-review.googlesource.com/18306
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-06 22:15:37 +00:00
Russ Cox
fc1793dde9 doc: document release support policy
Fixes #12790.

Change-Id: I0f231d198c76632c23692fc1337b57cfeafaf4c7
Reviewed-on: https://go-review.googlesource.com/18338
Reviewed-by: Andrew Gerrand <adg@golang.org>
2016-01-06 22:07:13 +00:00
Russ Cox
d02193c628 doc: document linux/ppc64 kernel requirement (2.6.37 or later)
Fixes #13269.

Change-Id: I960d1825bda9d8873c2a9005872c45e4c7d30111
Reviewed-on: https://go-review.googlesource.com/18339
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-01-06 22:06:36 +00:00
Russ Cox
6e28bf3795 doc: fix source link in gdb docs
Fixes #12059.

Change-Id: Ib5caf8133cd3ed888f9102dfbfeca11c506f3b5b
Reviewed-on: https://go-review.googlesource.com/18337
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-01-06 21:58:19 +00:00
Russ Cox
4220659867 cmd/go: do not force use of git master branch (again)
This time with a test.
Also adjust another test to skip when hg is not present,
and delete no longer needed fixDetachedHead code.

Fixes #9032 (again).

Change-Id: I481717409e1d44b524f83c70a8dc377699d1a2a5
Reviewed-on: https://go-review.googlesource.com/18334
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-06 21:57:20 +00:00
Russ Cox
19e27c731b doc: discuss copyright changes in contribute.html
Fixes #12542.

Change-Id: Icd0fa84d891d6b1feab9b4d4dd319cdf1e6d6c48
Reviewed-on: https://go-review.googlesource.com/18336
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-06 21:50:20 +00:00
Russ Cox
b598a7fc5d net: check /etc/hosts for modifications every 5 seconds, not 5 minutes
But also cache the previous parsed form and don't reread if the
size and modification time are both unchanged from before.

On systems with stable /etc/hosts this should result in more stat calls
but only a single parsing of /etc/hosts.

On systems with variable /etc/hosts files (like some Docker systems)
this should result in quicker adoption of changes.

Fixes #13340.

Change-Id: Iba93b204be73d6d903cd17c58038a4fcfd0952b9
Reviewed-on: https://go-review.googlesource.com/18258
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-06 21:42:19 +00:00