tree 975c81a35455346620a3ef101dacf2d6c7cb453a
parent 32c39fa1b7dd8601addc0e7e80ce6004703834c6
author Russ Cox <rsc@golang.org> 1269388877 -0700
committer Russ Cox <rsc@golang.org> 1269388877 -0700
golang-hg fc2507961bf0a218760caeb4c5f6e635d55943e0

runtime: add Callers

cut copies of traceback from 6 to 1.

R=r
CC=golang-dev
https://golang.org/cl/703041