code review 36360043: runtime: fix race detector when map keys/values are pas...

runtime: fix race detector when map keys/values are passed by pointer.

Now that the map implementation is reading the keys and values from
arbitrary memory (instead of from stack slots), it needs to tell the
race detector when it does so.

Fixes issue 6875.

[khr, 2013-12-03 01:31:21]

Hello golang-dev@googlegroups.com,

I'd like you to review this change to
https://khr%40golang.org@code.google.com/p/go/

[dave_cheney.net, 2013-12-03 01:34:18]

On 2013/12/03 01:31:21, khr wrote:
> Hello mailto:golang-dev@googlegroups.com,
> 
> I'd like you to review this change to
> https://khr%2540golang.org%40code.google.com/p/go/

LGTM. Thank you, please wait for Remy, Ian or Dmitry.

[khr, 2013-12-03 02:03:27]

*** Submitted as https://code.google.com/p/go/source/detail?r=6ec0276dad0e ***

runtime: fix race detector when map keys/values are passed by pointer.

Now that the map implementation is reading the keys and values from
arbitrary memory (instead of from stack slots), it needs to tell the
race detector when it does so.

Fixes issue 6875.

R=golang-dev, dave
CC=golang-dev
https://codereview.appspot.com/36360043

[dvyukov, 2013-12-03 06:51:31]

LGTM