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Russ Cox ae38b03f6c cmd/go: skip writing dwarf debug info for ephemeral binaries
Update #6853

For an ephemeral binary - one created, run, and then deleted -
there is no need to write dwarf debug information, since the
binary will not be used with gdb. In this case, instruct the linker
not to spend time and disk space generating the debug information
by passing the -w flag to the linker.

Omitting dwarf information reduces the size of most binaries by 25%.
We may be more aggressive about this in the future.

LGTM=bradfitz, r
R=r, bradfitz
CC=golang-codereviews
https://golang.org/cl/65890043
2014-02-19 10:01:15 -05:00
api api: whitelist change to unicode.Version 2014-02-18 13:38:47 -08:00
doc doc/go1.3.txt: unicode upgrade to 6.3.0 2014-02-18 11:50:38 -08:00
include cmd/gc: correct liveness for fat variables 2014-02-15 10:58:55 -05:00
lib codereview: fix for Mercurial 2.9 2014-02-14 15:56:58 -08:00
misc misc/emacs: add support for ff-find-other-file 2014-02-18 22:23:55 -05:00
src cmd/go: skip writing dwarf debug info for ephemeral binaries 2014-02-19 10:01:15 -05:00
test cmd/go: skip writing dwarf debug info for ephemeral binaries 2014-02-19 10:01:15 -05:00
.hgignore lib9: enable on Plan 9 2014-02-13 20:06:41 +01:00
.hgtags tag go1.2 2013-12-02 09:06:41 +11:00
AUTHORS A+C: Markus Zimmermann (individual CLA) 2014-02-13 16:43:28 -08:00
CONTRIBUTORS A+C: Markus Zimmermann (individual CLA) 2014-02-13 16:43:28 -08:00
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 README: Fix installation instructions 2013-11-20 13:47:37 -08:00
favicon.ico godoc: update favicon 2012-10-11 17:02:36 +11:00
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-source.html
in your web browser.

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

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.