[dev.cc] code review 168510043: runtime: convert assembly files for C to Go transition

runtime: convert assembly files for C to Go transition

The main change is that #include "zasm_GOOS_GOARCH.h"
is now #include "go_asm.h" and/or #include "go_tls.h".

Also, because C StackGuard is now Go _StackGuard,
the assembly name changes from const_StackGuard to
const__StackGuard.

In asm_$GOARCH.s, add new function getg, formerly
implemented in C.

The renamed atomics now have Go wrappers, to get
escape analysis annotations right. Those wrappers
are in CL 174860043.

[rsc, 2014-11-11 06:39:56]

Hello r (cc: austin, dvyukov, golang-codereviews@googlegroups.com, iant, khr),

I'd like you to review this change to the dev.cc branch of
https://code.google.com/p/go

[r, 2014-11-11 06:56:13]

LGTM

[aram, 2014-11-11 11:36:47]

LGTM

[rsc, 2014-11-11 22:06:27]

*** Submitted as https://code.google.com/p/go/source/detail?r=bccb1a9e20d5 ***

[dev.cc] runtime: convert assembly files for C to Go transition

The main change is that #include "zasm_GOOS_GOARCH.h"
is now #include "go_asm.h" and/or #include "go_tls.h".

Also, because C StackGuard is now Go _StackGuard,
the assembly name changes from const_StackGuard to
const__StackGuard.

In asm_$GOARCH.s, add new function getg, formerly
implemented in C.

The renamed atomics now have Go wrappers, to get
escape analysis annotations right. Those wrappers
are in CL 174860043.

LGTM=r, aram
R=r, aram
CC=austin, dvyukov, golang-codereviews, iant, khr
https://codereview.appspot.com/168510043