Reduce the number of allowed swap operations during stable sort. 

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/12907045

Some users have multiple Go development trees and invoke the
'go' tool via a wrapper that sets GOROOT and GOPATH based on
the current directory.  Such users should customize go-command
to point to the wrapper script.

R=dominik.honnef
CC=golang-dev
https://golang.org/cl/13233043

No measurable impact on performance on amd64

R=golang-dev, khr, bradfitz
CC=golang-dev
https://golang.org/cl/13096045

R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/13274043

Fixes #4195

R=golang-dev, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/12960046

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/13262043

Apply the same rules for argument evaluation and indirection that are
used by the regular evaluator.

Fixes #5802

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/13257043

Just forgot to include this in CL 12843043.
Also consolidates the code dealing with test environment.

Update #6122

R=alex.brainman
CC=golang-dev
https://golang.org/cl/13184043

R=golang-dev, dave, bradfitz, adg
CC=golang-dev
https://golang.org/cl/13249043

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/13232043

RFC 6265 allows a leading dot in a cookie domain attribute
but is clear (see section 4.1.1) that a Set-Cookie header
should be sent without these dots.

R=bradfitz
CC=golang-dev
https://golang.org/cl/13111043

With my apologies.

R=golang-dev, alex.brainman
CC=golang-dev
https://golang.org/cl/12984045

NetBSD 6 kernel and beyond require 64-bit aligned access to routing
facilities.

Fixes #6226.

R=golang-dev, bsiegert, bradfitz
CC=golang-dev
https://golang.org/cl/13170043

== isn't defined on slices, so don't use it in docs.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/12983045

OS X in particular deletes tmp files (but not directories)
pretty reliably.

Ask hg whether the go.tools directory in tmp is good before
using it.

Fixes issue Rob and others were reporting, which I just hit
myself now.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/13084049

This was breaking people setting GOARCH=386 before running
all.bash on amd64 machines.

cmd/go puts different architecture binaries where "go tool"
can't find them.

R=golang-dev, r, khr
CC=golang-dev
https://golang.org/cl/13139044

R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/12917050

Current for Plan 9 is implemented with /dev/user for
Uid/Gid/Username/Name, and $home environment variable for
HomeDir.

Implementing Lookup/LookupId is not done, which would
require parsing /adm/users. It is unclear of how much benefit
this would be.

R=golang-dev
CC=bradfitz, golang-dev, r
https://golang.org/cl/13203043

Also use clone(2) syscall instead of fork().

Fixes #6214.

R=golang-dev, bradfitz, dave
CC=golang-dev
https://golang.org/cl/13159044

the use of the flag, especially for objects which actually do have
pointers but we don't want the GC to scan them.

R=golang-dev, cshapiro
CC=golang-dev
https://golang.org/cl/13181045

slice type to an array type, the haspointer-ness may change.
Before this change, we'd sometimes get types like [1]int marked
as having pointers.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/13189044

Update #5780

R=golang-dev, cshapiro, dave, bradfitz
CC=golang-dev
https://golang.org/cl/12869049

Update #6214

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/13160043

Enable remaining packages (crypto, mime, path, time) to build on dragonfly.

R=bradfitz
CC=golang-dev
https://golang.org/cl/13190043

Make the net package build and work on dragonfly.

R=bradfitz
CC=golang-dev
https://golang.org/cl/13173044

Make the os package build and work on dragonfly.

R=bradfitz
CC=golang-dev
https://golang.org/cl/13183044

Add generated z-files for dragonfly/amd64.

R=bradfitz
CC=golang-dev
https://golang.org/cl/13056045

Add syscall support for dragonfly/amd64.

Also add support for generating syscall z* files for dragonfly.

R=bradfitz
CC=golang-dev
https://golang.org/cl/13188043

Go runtime support for dragonfly/amd64, largely based of the existing
FreeBSD runtime (with some clues from the varialus/godfly work).

R=bradfitz
CC=golang-dev
https://golang.org/cl/13088044

Fixes #6227

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/13183043

Generated by addca.

R=gobot
CC=golang-dev
https://golang.org/cl/13189043

Add dragonflydynld to 5l and 8l so that they compile again.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/12739048

Add dragonfly/amd64 support to the Go compiler, bootstrap and GOOS list.

R=devon.odell, bradfitz
CC=golang-dev
https://golang.org/cl/12796050

Also avoids platform-dependent datagram truncation in raw IP tests.
At least it's different between Windows and others.

Fixes #6122.

R=alex.brainman
CC=golang-dev
https://golang.org/cl/12843043

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/13141045

This is an attempt to make our slow
windows-386 builder more reliable.

R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/12798045

Also makes variable names a bit cleaner.

R=golang-dev, dave, r
CC=golang-dev
https://golang.org/cl/12808047

Update #5344

R=alex.brainman
CC=golang-dev
https://golang.org/cl/12966046

R=golang-dev, adg
CC=golang-dev, mikioh.mikioh
https://golang.org/cl/12848047

This CL adds minimal information for supporting platforms that don't
have a complete list of internet protocol numbers.

Fixes #5344.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/12898045