Fixes #5244.

R=golang-dev, rsc, iant, r, daniel.morsing
CC=golang-dev
https://golang.org/cl/8601044

Fixes #5431.

R=dvyukov, remyoudompheng, rsc
CC=gobot, golang-dev
https://golang.org/cl/9910043

This feature is not yet ready for real use. The CL marks a bite-sized
piece that is ready for review. TODOs that remain:
        provide control over output
        produce output without setting -v
        make work on reflect, sync and time packages
                (fail now due to link errors caused by inlining)
        better documentation
Almost all packages work now, though, if clumsily; try:
        go test -v -cover=count encoding/binary

R=rsc
CC=gobot, golang-dev, remyoudompheng
https://golang.org/cl/10050045

R=cshapiro, dvyukov, khr, rsc
CC=golang-dev
https://golang.org/cl/10005044

Requires adding new linker instruction
        RET	f(SB)
meaning return but then immediately call f.
This is what you'd use to implement a tail call after
fiddling with the arguments, but the compiler only
uses it in genwrapper.

This CL eliminates the copy-and-paste genembedtramp
functions from 5g/8g/6g and makes the code run on ARM
for the first time. It removes a small special case for function
generation, which should help Carl a bit, but at the same time
it does not bother to implement general tail call optimization,
which we do not want anyway.

Fixes #5627.

R=ken2
CC=golang-dev
https://golang.org/cl/10057044

Fixes #5615.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/9651047

The first identifier in an Object Identifer must be between 0 and 2
inclusive. The range of values that the second one can take depends
on the value of the first one.
The two first identifiers are not necessarily encoded in a single octet,
but in a varint.

R=golang-dev, agl
CC=golang-dev
https://golang.org/cl/10140046

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/10159043

The new code matches the code in cc/lex.c and the #define GETC.
This was causing problems scanning runtime·foo if the leading
· byte was returned by the buffer fill.

R=ken2
CC=golang-dev
https://golang.org/cl/10167043

Fixes #5111.
Update #4718
This CL makes BL (Rx) to use BLX Rx instead of:
MOV LR, PC
MOV PC, Rx

R=cshapiro, rsc
CC=dave, gobot, golang-dev
https://golang.org/cl/9669045

Update #5641.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/10144043

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/10137043

Fixes #4078.

R=golang-dev, bradfitz, rsc, iant
CC=golang-dev
https://golang.org/cl/7100050

R=golang-dev, bradfitz, gri, iant, rsc
CC=golang-dev
https://golang.org/cl/7235044

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/10150043

R=golang-dev, iant, bradfitz, dave
CC=golang-dev
https://golang.org/cl/7430044

Fixes #5567.

R=golang-dev, dave, iant
CC=golang-dev
https://golang.org/cl/10085043

Do not synchronize Add(1) with Wait().
Imitate read on first Add(1) and write on Wait(),
it allows to catch common misuses of WaitGroup:
- Add() called in the additional goroutine itself
- incorrect reuse of WaitGroup with multiple waiters

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/10093044

R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/10085050

Fixes #5619.

R=golang-dev, r, peter.armitage, go.peter.90
CC=golang-dev
https://golang.org/cl/9952044

Also reduce FixAlloc allocation granulatiry from 128k to 16k,
small programs do not need that much memory for MCache's and MSpan's.

R=golang-dev, khr
CC=golang-dev
https://golang.org/cl/10140044

Reduces heap size.

R=golang-dev, khr
CC=golang-dev
https://golang.org/cl/10140043

Especially important for Windows because it reserves VM
only in multiple of 64k.

R=golang-dev, alex.brainman
CC=golang-dev
https://golang.org/cl/10082048

Reduces heap size.

R=golang-dev, remyoudompheng, bradfitz
CC=golang-dev
https://golang.org/cl/10139043

Especially important for Windows because it reserves VM
only in multiple of 64k.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/10138043

Removes code duplication.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/9874055

R=golang-dev, dave, adg, remyoudompheng, r
CC=golang-dev
https://golang.org/cl/6845083

Fixes #5603.

R=iant, dave
CC=gobot, golang-dev
https://golang.org/cl/9895043

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/10107044

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/10099045

R=golang-dev, bradfitz, khr, r
CC=golang-dev
https://golang.org/cl/7461046

R=rsc, minux.ma, r
CC=golang-dev
https://golang.org/cl/10110043

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/10036047

Fixes #5075.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/10084044

Remove alignment logic as well, it's not respected by chanbuf() anyway.

R=golang-dev, dave, minux.ma, r, iant, rsc
CC=golang-dev
https://golang.org/cl/9678046

Count only number of frees, everything else is derivable
and does not need to be counted on every malloc.
benchmark                    old ns/op    new ns/op    delta
BenchmarkMalloc8                    68           66   -3.07%
BenchmarkMalloc16                   75           70   -6.48%
BenchmarkMallocTypeInfo8           102           97   -4.80%
BenchmarkMallocTypeInfo16          108          105   -2.78%

R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/9776043

Use http://unicode.org/cldr/data/common/supplemental/windowsZones.xml
to generate the map.

Fixes #4838.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/9997043

WriteFile should not successfully return if the file's
Close call failed.

Fixes #5644.

R=golang-dev, kr, r
CC=golang-dev
https://golang.org/cl/10067043

Fixes #4996

R=golang-dev, r, bradfitz
CC=golang-dev
https://golang.org/cl/7547043

Already fixed independently in Plan 9.

R=ken2
CC=golang-dev
https://golang.org/cl/10041044