Change-Id: I95c6c85eecb53ffe52b64d521180148b624e9424
Reviewed-on: https://go-review.googlesource.com/18423Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

The previous behaviour of installing the signal handlers in a separate
thread meant that Go initialization raced with non-Go initialization if
the non-Go initialization also wanted to install signal handlers.  Make
installing signal handlers synchronous so that the process-wide behavior
is predictable.

Update #9896.

Change-Id: Ice24299877ec46f8518b072a381932d273096a32
Reviewed-on: https://go-review.googlesource.com/18150
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>

TBR adonovan

Fixes #13882.

Change-Id: I8664669f5d6adfec6f16e154263b1f0ea8988175
Reviewed-on: https://go-review.googlesource.com/18445Reviewed-by: Robert Griesemer <gri@golang.org>

Go 1.6 simplified the GC phases. The "synchronize Ps" phase no longer
exists and "root scan" and "mark" phases have been combined.

Update the gctrace line implementation and documentation to remove the
unused phases.

Fixes #13536.

Change-Id: I4fc37a3ce1ae3a99d48c0be2df64cbda3e05dee6
Reviewed-on: https://go-review.googlesource.com/18458
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>

Fixes #13688.

Change-Id: I53363aeeeba4560211d56d4571a8e058d5dbbd8a
Reviewed-on: https://go-review.googlesource.com/18308Reviewed-by: Alan Donovan <adonovan@google.com>

Sigh. Sleeps on FreeBSD also yield the rest of the time slice and
profiling signals are only delivered when a process completes a time
slice (worse, itimer time is only accounted to the process that
completes a time slice). It's less noticeable than the other BSDs
because the default tick rate is 1000Hz, but it's still failing
regularly.

Fixes #13846.

Change-Id: I41bf116bffe46682433b677183f86944d0944ed4
Reviewed-on: https://go-review.googlesource.com/18455Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Austin Clements <austin@google.com>

Change-Id: Ib838d2b98e3f84ffd240849817cafc69415ba74e
Reviewed-on: https://go-review.googlesource.com/18376Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Fixes #13875.

Change-Id: Icbb85c858d0bc545499a2b31622e9e7abdd7e5f9
Reviewed-on: https://go-review.googlesource.com/18441Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Fixes build.

Change-Id: I5235deed7b93157854acb79c15e2e99cc28d300a
Reviewed-on: https://go-review.googlesource.com/18456Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: I728d4c709c4122fe4b96e1350be73696ac6fb1f7
Reviewed-on: https://go-review.googlesource.com/18422Reviewed-by: Ian Lance Taylor <iant@golang.org>

There are fewer special cases this way: the import map applies
to all import paths, not just the ones not spelled "unsafe".

This is also consistent with what the code in cmd/go and go/build expects.
They make no exception for "unsafe".

For #13703.

Change-Id: I622295261ca35a6c1e83e8508d363bddbddb6c0a
Reviewed-on: https://go-review.googlesource.com/18438Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>

Third time's a charm.

Thanks to Ralph Corderoy for noticing the DEL omission.

Update #11207

Change-Id: I174fd01eaecceae1eb220f2c9136e12d40fbe943
Reviewed-on: https://go-review.googlesource.com/18375Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Looking for vendor directories is a better default.

Fixes #13772

Change-Id: Iabbaea71ccc67b72f14f1f412dc8ab70cb41996d
Reviewed-on: https://go-review.googlesource.com/18450Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Austin Clements <austin@google.com>

We're only getting away with it today by luck.

Change-Id: I24d1cceee4d20c5181ca64fceda152e875f6ad81
Reviewed-on: https://go-review.googlesource.com/18440
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>

Also nosplit where needed.

Change-Id: I1e3f6f8f76df9ee7e87ed1b8560cef145928314c
Reviewed-on: https://go-review.googlesource.com/18395Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

This reverts commit bb8c2e19.

Change-Id: I9bc089e9f2296805ef055b98e8c86ba73af30226
Reviewed-on: https://go-review.googlesource.com/18439Reviewed-by: Russ Cox <rsc@golang.org>

The cgoTestSO test currently fails when run on FreeBSD amd64 with
GOHOSTARCH=386. This is due to it failing to find the shared object.

On FreeBSD 64-bit architectures, the linker for 32-bit objects
looks for a separate environment variable. Export both LD_LIBRARY_PATH
and LD_32_LIBRARY_PATH on FreeBSD when GOHOSTARCH=386.

Update issue #13873.

Change-Id: I1fb20dd04eb2007061768b2e4530886521813d42
Reviewed-on: https://go-review.googlesource.com/18420Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Reading 32,767 is too many on some versions of Windows.
The exact upper bound is unclear.

For #13697, but may not fix the problem on all systems.

Change-Id: I197021ed60cbcd33c91ca6ceed456ec3d5a6c9d6
Reviewed-on: https://go-review.googlesource.com/18433Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

In the past, `a.*?c|a.*?b` was factored to `a.*?[bc]`. Thus, given
"abc" as its input string, the automaton would consume "ab" and
then stop (when unanchored) whereas it should consume all of "abc"
as per leftmost semantics.

Fixes #13812.

Change-Id: I67ac0a353d7793b3d0c9c4aaf22d157621dfe784
Reviewed-on: https://go-review.googlesource.com/18357Reviewed-by: Russ Cox <rsc@golang.org>

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/18172Reviewed-by: Russ Cox <rsc@golang.org>

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/18383Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

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/17997Reviewed-by: Yasuhiro MATSUMOTO <mattn.jp@gmail.com>
Reviewed-by: Russ Cox <rsc@golang.org>

Fixes #13867.

Change-Id: I6c0a6c64369681840df60f63036c2eece27de8b8
Reviewed-on: https://go-review.googlesource.com/18394Reviewed-by: Russ Cox <rsc@golang.org>

For #13677, but there is more to do.

Change-Id: Id1af999dc972d07cdfc771e5855a1a7dca47ca96
Reviewed-on: https://go-review.googlesource.com/18046Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

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/18348Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

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/18347Reviewed-by: Ian Lance Taylor <iant@golang.org>

This reverts commit c5bafc82.

Change-Id: Ie7030c978c6263b9e996d5aa0e490086796df26d
Reviewed-on: https://go-review.googlesource.com/18431Reviewed-by: Russ Cox <rsc@golang.org>

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/18343Reviewed-by: Austin Clements <austin@google.com>

Fixes #13384.

Change-Id: Id9e827acddc8de139f93c5de0c6486bc4334c7d4
Reviewed-on: https://go-review.googlesource.com/18330Reviewed-by: Ian Lance Taylor <iant@golang.org>

Based on comments from Thomas Bushnell.

Update #9896.

Change-Id: I603b1382d17dff00b5d18f17f8b5d011503e9e4c
Reviewed-on: https://go-review.googlesource.com/18365Reviewed-by: Russ Cox <rsc@golang.org>

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/18291Reviewed-by: Russ Cox <rsc@golang.org>

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/18369Reviewed-by: Ian Lance Taylor <iant@golang.org>

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/18374Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>

Fixes #13742.

Change-Id: I7c8b51b60e31402bf708bf8d70e07fd06295e8ce
Reviewed-on: https://go-review.googlesource.com/18393Reviewed-by: Russ Cox <rsc@golang.org>

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>

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/18386Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Fixes #13564.

Change-Id: I30c827ef4a112fee21b8493a67d0227109e35072
Reviewed-on: https://go-review.googlesource.com/18384Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

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/18373Reviewed-by: Andrew Gerrand <adg@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

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/18368Reviewed-by: Blake Mizerany <blake.mizerany@gmail.com>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>

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>