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abc516e420
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Carl Shapiro abc516e420 cmd/cc, cmd/gc, runtime: Uniquely encode iface and eface pointers in the pointer map. 
Prior to this change, pointer maps encoded the disposition of
a word using a single bit.  A zero signaled a non-pointer
value and a one signaled a pointer value.  Interface values,
which are a effectively a union type, were conservatively
labeled as a pointer.

This change widens the logical element size of the pointer map
to two bits per word.  As before, zero signals a non-pointer
value and one signals a pointer value.  Additionally, a two
signals an iface pointer and a three signals an eface pointer.

Following other changes to the runtime, values two and three
will allow a type information to drive interpretation of the
subsequent word so only those interface values containing a
pointer value will be scanned.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/12689046
2013-08-09 16:48:12 -07:00
api cmd/api: rewrite using go/types 2013-08-08 14:10:59 -07:00
doc doc/go1.2.txt: document previously committed features 2013-08-08 09:57:31 -07:00
include include/plan9: define size_t to fix build breakage 2013-06-28 12:16:33 -07:00
lib cmd/godoc: delete from core repository 2013-08-01 11:21:17 +10:00
misc misc/emacs: add support for mode=count coverage 2013-08-09 14:42:43 -07:00
src cmd/cc, cmd/gc, runtime: Uniquely encode iface and eface pointers in the pointer map. 2013-08-09 16:48:12 -07:00
test runtime: Better test tracebackability of jmpdefer when running a nil defer. 2013-08-09 15:27:45 -07:00
.hgignore build: ignore new zfiles, delete temp goplay binary in run.bash 2013-08-02 19:14:13 -07:00
.hgtags tag go1.1.1 2013-06-13 12:52:02 +10:00
AUTHORS A+C: add googlemail aliases for deemok 2013-08-08 10:40:32 -07:00
CONTRIBUTORS A+C: add googlemail aliases for deemok 2013-08-08 10:40:32 -07:00
favicon.ico godoc: update favicon 2012-10-11 17:02:36 +11:00
LICENSE doc: update licensing text one more time 2012-03-27 15:09:13 +11:00
PATENTS LICENSE: separate, change PATENTS text 2010-12-06 16:31:59 -05:00
README build: update, streamline documentation for new $GOBIN 2010-08-24 20:00:50 -04:00
robots.txt godoc: serve robots.txt raw 2011-02-19 05:46:20 +11:00

README 

This is the source code repository for the Go programming language.  

For documentation about how to install and use Go,
visit http://golang.org/ or load doc/install.html in your web browser.

After installing Go, you can view a nicely formatted
doc/install.html by running godoc --http=:6060
and then visiting http://localhost:6060/doc/install.html.

Unless otherwise noted, the Go source files are distributed
under the BSD-style license found in the LICENSE file.

--

Binary Distribution Notes

If you have just untarred a binary Go distribution, you need to set
the environment variable $GOROOT to the full path of the go
directory (the one containing this README).  You can omit the
variable if you unpack it into /usr/local/go, or if you rebuild
from sources by running all.bash (see doc/install.html).
You should also add the Go binary directory $GOROOT/bin
to your shell's path.

For example, if you extracted the tar file into $HOME/go, you might
put the following in your .profile:

    export GOROOT=$HOME/go
    export PATH=$PATH:$GOROOT/bin

See doc/install.html for more details.