An earlier CL disallowed ~ anywhere in GOPATH, to avoid
problems with GOPATH='~/home' instead of GOPATH=~/home.
But ~ is only special in the shell at the beginning of each of
the paths in the list, and some paths do have ~ in the middle.
So relax the requirement slightly.

Fixes #4140.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/7799045

Fixes #4235.

R=rsc, dave, r, dr.volker.dobler
CC=golang-dev
https://golang.org/cl/7438051

The new build tag "go1.1" will be satisfied by any Go 1.z release >= 1.1.
In general, the build tag "go1.x" will be satisfied by any Go 1.z release >= 1.x.
What happens when we reach Go 2 is yet to be decided.

The tags "go1" or "go1.0" are missing, because +build tags did not exist
before then, and also because the Go 1.0 releases do not recognize them.

The new -installsuffix flag gives access to the build context's InstallSuffix
(formerly named InstallTag, but not part of Go 1.0), for use in isolating
builds to custom directories. For example -race implies -installsuffix race,
and an AppEngine-specific build might use -tags appengine -installsuffix appengine.

Fixes #4116.
Fixes #4443.

R=golang-dev, bradfitz, r
CC=golang-dev
https://golang.org/cl/7794043

Eliminate false positives when you can tell even without
type information that the literal does not need field tags.

Far too noisy otherwise.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7797043

Point the user to "go tool pprof" and mention some
important flags.

Fixes #4990.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7657045

valgrind complained that under some circumstances,

    *nr = *nc

was being called when nr and nc were the same *Node. The suggestion my Rémy was to introduce a tmp node to avoid the potential for aliasing in subnode.

R=remyoudompheng, minux.ma, rsc
CC=golang-dev
https://golang.org/cl/7780044

All the headings are CAPS not Title.

Fixes #4843.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7792043

If a fixed size array is passed in as the decode target and the JSON
to decode has extra array elements that are objects, then previously
the decoder would return a "data changing underfoot" error.

Fixes #3717.

R=golang-dev, adg, rsc
CC=golang-dev
https://golang.org/cl/7490046

Fixes #3838.

R=dave, mikioh.mikioh, rsc
CC=golang-dev
https://golang.org/cl/7511043

Also change prefix generation to use more human-friendly prefixes.

Fixes #5040.

R=golang-dev, r, bradfitz
CC=golang-dev
https://golang.org/cl/7777047

Just use "go tool addr2line" no matter what, since we know
it works for all OSs.

Fixes #4818.

R=rsc, r
CC=golang-dev
https://golang.org/cl/7526047

Fixes #4972.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7649044

Don't call unix-only function in test init.

R=golang-dev, alex.brainman
CC=golang-dev
https://golang.org/cl/7778043

Correctly indent the body of functions that have been declared
over multiple lines. See http://play.golang.org/p/MHMwNDbFyf for
an example.

Previously, the body of the function would be indented as deep as
the continuation line of the function declaration. Now it gets
indented as deep as the func keyword.

R=adonovan, cw, patrick.allen.higgins
CC=golang-dev
https://golang.org/cl/7628043

R=golang-dev, r, iant, iant
CC=golang-dev
https://golang.org/cl/6454072

On BSD variants, the tests need surely constructed IPv6
routing table.

R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/7776043

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7480047

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7529048

Fixes #4705.

Note that libjpeg will print a warning to stderr if there are many
extraneous bytes, but can be silent if the extraneous bytes can fit
into its int32 bit-buffer for Huffman decoding. I'm guessing that
this is why whatever encoder that produced the image filed for issue
4705 did not realize that they are, strictly speaking, generating an
invalid JPEG. That issue's attached image has two extraneous bytes.

For example, piping the program below into libjpeg's djpeg program
will print an "18 extraneous bytes" warning, even though N == 20.

$ cat main.go
package main

import (
        "bytes"
        "image"
        "image/color"
        "image/jpeg"
        "os"
)

const N = 20

func main() {
        // Encode a 1x1 red image.
        m := image.NewRGBA(image.Rect(0, 0, 1, 1))
        m.Set(0, 0, color.RGBA{255, 0, 0, 255})
        buf := new(bytes.Buffer)
        jpeg.Encode(buf, m, nil)
        b := buf.Bytes()
        // Strip the final "\xff\xd9" EOI marker.
        b = b[:len(b)-2]
        // Append N dummy 0x80 bytes to the SOS data.
        for i := 0; i < N; i++ {
                b = append(b, 0x80)
        }
        // Put back the "\xff\xd9" EOI marker.
        b = append(b, 0xff, 0xd9)
        os.Stdout.Write(b)
}
$ go run main.go | djpeg /dev/stdin > /tmp/foo.pnm
Corrupt JPEG data: 18 extraneous bytes before marker 0xd9

The resultant /tmp/foo.pnm is a perfectly good 1x1 red image.

R=r
CC=golang-dev
https://golang.org/cl/7750043

R=golang-dev, bradfitz, dave, rsc
CC=golang-dev
https://golang.org/cl/7547044

With the global redefinition of runtime·open by CL 7543043,
we need to provide a third argument and remove the cast
to the string.

Fixes build on 386 version of Plan 9.

R=khr, rsc, rminnich, ality
CC=golang-dev
https://golang.org/cl/7644047

Needed by TestResolveIPAddr. This makes us pass tests
again.

R=rsc, rminnich, ality, bradfitz
CC=golang-dev
https://golang.org/cl/7737043

Many thanks to Elias Naur for finding this with Valgrind on Linux.
Perhaps this is what is breaking the windows/amd64 builder.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7595044

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7663045

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6727046

R=golang-dev, dave, iant
CC=golang-dev
https://golang.org/cl/7765043

The old description was misleading and inaccurate.

Fixes #4774.

R=iant, rsc, gri
CC=golang-dev
https://golang.org/cl/7761044

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7762046

See also https://golang.org/cl/7656044

R=golang-dev, gri, rsc
CC=golang-dev
https://golang.org/cl/7625048

Fixes #5033.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7764044

The parameter list layout function was incorrectly computing the
end of the previous line in cases where a parameter type spanned
multiple lines. As a result, an extra (valid, but not needed)
comma was introduced before the paremeter list's closing parenthesis.

Fixes #4533.

R=rsc
CC=golang-dev
https://golang.org/cl/7674044

This was a bug that didn't manifest itself before CL 7674044;
but with that CL and without this fix, the go/doc tests fail.
(The bug fixed by 7674044 and the bug fixed here cancelled
each other out w/ respect to the go/doc tests).

R=rsc
CC=golang-dev
https://golang.org/cl/7628045

Introduce pollDesc struct, to split netFD struct into fd-related
and poller-related parts.

R=golang-dev, bradfitz, iant
CC=golang-dev
https://golang.org/cl/7762044

Fixes #5035.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7519045

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7593045

It didn't work properly according to the Go memory model.
Fixes #5023.

R=golang-dev, dvyukov, adg
CC=golang-dev
https://golang.org/cl/7698045

Uses AES hardware instructions on 386/amd64 to implement
a fast hash function.  Incorporates a random key to
thwart hash collision DOS attacks.
Depends on CL#7548043 for new assembly instructions.

Update #3885
Helps some by making hashing faster.  Go time drops from
0.65s to 0.51s.

R=rsc, r, bradfitz, remyoudompheng, khr, dsymonds, minux.ma, elias.naur
CC=golang-dev
https://golang.org/cl/7543043

R=golang-dev
CC=golang-dev
https://golang.org/cl/7760043

This is a part of the bigger change that moves network poller into runtime:
https://golang.org/cl/7326051/

R=golang-dev, bradfitz, mikioh.mikioh, rsc
CC=golang-dev
https://golang.org/cl/7448048

If two fields have the same name but different explicit name spaces,
treat as non-conflicting. This allows parsing common XML formats
that have ns1:tag and ns2:tag in the same XML element.
Fixes #4691.

Allow setting the default name space for unadorned tags, by
writing to Decoder.DefaultSpace. This allows turned the job of
parsing common XML formats that have tag and ns2:tag in the
same XML element into the first case by setting DefaultSpace="ns1".
Fixes #3703.

Use name space attributes when decoding.
Attach name space to attributes when encoding.
Could be done with fewer annotations, but semantically correct as is.
Fixes #3526.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7227056