Fixes #6807.

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/95060043

Just like run.* scripts do.
Fixes race build.

LGTM=dave, dvyukov
R=dvyukov, dave
CC=golang-codereviews
https://golang.org/cl/98980043

LGTM=iant
R=dsymonds, iant
CC=golang-codereviews, pfr
https://golang.org/cl/98970045

Update #7947

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/100180043

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews, r
https://golang.org/cl/95010049

Update #7406
Fixes #7899

LGTM=bradfitz
R=golang-codereviews, rsc, bradfitz
CC=golang-codereviews
https://golang.org/cl/96960043

Fixes #7071.

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/93770044

LGTM=minux.ma
R=golang-codereviews, minux.ma
CC=golang-codereviews
https://golang.org/cl/94100045

Update #7899

LGTM=iant
R=golang-codereviews, rsc, iant
CC=golang-codereviews
https://golang.org/cl/97920044

The previous syscall constants regeneration on openbsd was conducted
with OpenBSD current 3 months ago and it missed updating openbsd/386.
This CL adds TIOCGSID for fixing the inconsistency between opensbd/amd64
and openbsd/386.

Update #7049

LGTM=iant
R=jsing, rsc, iant
CC=golang-codereviews
https://golang.org/cl/96960044

We will serve downloads from here until we work out a better plan.

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/95980044

R=gobot
CC=golang-codereviews
https://golang.org/cl/97070043

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/96000043

R=rsc, bradfitz
CC=golang-codereviews
https://golang.org/cl/100110043

Fixes #7592

LGTM=robert.hencke, adg
R=golang-codereviews, robert.hencke, gobot, adg
CC=golang-codereviews
https://golang.org/cl/90810043

Where the spelling changed from British to
US norm (e.g., optimise -> optimize) it follows
the style in that file.

LGTM=adonovan
R=golang-codereviews, adonovan
CC=golang-codereviews
https://golang.org/cl/96980043

Generated by addca.

R=gobot
CC=golang-codereviews
https://golang.org/cl/90970048

Because gotraceback is called early and often, its cache commits to the value of getenv("GOTRACEBACK") before getenv is even ready.  So now we reset its cache once getenv becomes ready.  Panicking programs now dump core again.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/97800045

If slice append is the only place where a program allocates,
then it will consume all available memory w/o triggering GC.
This was demonstrated in the issue.
Fixes #7922.

LGTM=rsc
R=golang-codereviews, rsc
CC=golang-codereviews, iant, khr
https://golang.org/cl/91010048

The monotonic clock patch changed all runtime times
to abstract monotonic time. As the result user-visible
MemStats.LastGC become monotonic time as well.
Restore Unix time for LastGC.

This is the simplest way to expose time.now to runtime that I found.
Another option would be to change time.now to C called
int64 runtime.unixnanotime() and then express time.now in terms of it.
But this would require to introduce 2 64-bit divisions into time.now.
Another option would be to change time.now to C called
void runtime.unixnanotime1(struct {int64 sec, int32 nsec} *now)
and then express both time.now and runtime.unixnanotime in terms of it.

Fixes #7852.

LGTM=minux.ma, iant
R=minux.ma, rsc, iant
CC=golang-codereviews
https://golang.org/cl/93720045

If systems actually read that much, using 2GB-1 will
result in misaligned subsequent reads. Use 1GB instead,
which will certainly keep reads aligned and which is
plenty large enough.

Update #7812.

LGTM=bradfitz
R=bradfitz
CC=golang-codereviews
https://golang.org/cl/94070044

LGTM=dsymonds, adg, crawshaw, r, bradfitz, campoy, nigeltao, sameer, iant, robsc, djd, michael.j.fromberger, gmlewis, adonovan, rsc
R=golang-codereviews, dsymonds, adg, crawshaw, r, nigeltao, sameer, iant, robsc, djd, michael.j.fromberger, gmlewis, adonovan, rsc
CC=golang-codereviews
https://golang.org/cl/98880043

Fixes #7918

LGTM=dave
R=rsc, dave
CC=golang-codereviews
https://golang.org/cl/91980043

This change allows us to give an hg tag such as "go1.3beta1" to
revisions in the main branch without breaking the build.

This is helpful for community members who want to build the beta
from source.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/90190044

The backing memory for >1 word interfaces was being scanned
conservatively.

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/94000043

go test may call builder.init() multiple times which will create a new work directory.  The cleanup needs to hoist the current work directory.
Fixes #7904.

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/95900044

Generated by addca.

R=gobot
CC=golang-codereviews
https://golang.org/cl/90950044

Not only ChST but also MeST (America/Metlakatla) is a zone
name containing a lower case letter.

LGTM=robert.hencke, r
R=golang-codereviews, robert.hencke, bradfitz, r
CC=golang-codereviews
https://golang.org/cl/99910043

LGTM=aram
R=golang-codereviews, aram
CC=golang-codereviews
https://golang.org/cl/99890045

Fixes #7412.

LGTM=r
R=golang-codereviews, r
CC=golang-codereviews
https://golang.org/cl/92850043

FreeBSD 10 is fully supported.

LGTM=r
R=golang-codereviews, bradfitz, r
CC=dave, golang-codereviews
https://golang.org/cl/99810044

Some system doesn't have libc.a available.

While we're at here, also export GOROOT in run.bash, so that
one doesn't need to set GOROOT to run run.bash.

LGTM=iant
R=iant
CC=golang-codereviews
https://golang.org/cl/99870043

LGTM=ruiu, bradfitz
R=golang-codereviews, bradfitz, ruiu
CC=golang-codereviews
https://golang.org/cl/91840044

For gccgo we rename exported functions so that the compiler
will make them visible.  This CL adds a #define so that C
functions that #include "cgo_export.h" can use the expected
names of the function.

The test for this is the existing issue6833 test in
misc/cgo/test.  Without this CL it fails when using
-compiler=gccgo.

LGTM=minux.ma, rsc
R=golang-codereviews, gobot, rsc, minux.ma
CC=golang-codereviews
https://golang.org/cl/91830046

This should make Go build without setting CC and CXX on newer FreeBSDs.

LGTM=iant
R=golang-codereviews, dave, gobot, iant
CC=golang-codereviews
https://golang.org/cl/89230045

This CL tries to fill the gap between Linux and other Unix-like systems
in the same way UDPConn and UnixConn already did.

Fixes #7887.

LGTM=iant
R=iant
CC=golang-codereviews
https://golang.org/cl/97810043

Fixes #7828.

LGTM=robert.hencke, iant, bradfitz
R=golang-codereviews, robert.hencke, iant, bradfitz
CC=golang-codereviews
https://golang.org/cl/97780045

The vi bundled with OS X has a weird bug in that if you turn off
filetype in .vimrc when it's not turned on, even a clean exit of
vi will return 1 which breaks almost everything.

While we're at it, add hint to change $GOROOT to its actual value
in .vimrc.

Fixes #7865.

LGTM=robert.hencke, dsymonds
R=golang-codereviews, robert.hencke, gobot, dsymonds
CC=golang-codereviews
https://golang.org/cl/96800046

Use a real type for Gs instead of scanning them conservatively.
Zero the schedlink pointer when it is dead.

Update #7820

LGTM=rsc
R=rsc, dvyukov
CC=golang-codereviews
https://golang.org/cl/89360043

LGTM=rsc
R=golang-codereviews, adonovan, rsc
CC=golang-codereviews
https://golang.org/cl/90440043