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Russ Cox e844f53a01 runtime: stop scanning stack frames/args conservatively
The goal here is to commit fully to having precise information
about stack frames. If we need information we don't have,
crash instead of assuming we should scan conservatively.

Since the stack copying assumes fully precise information,
any crashes during garbage collection that are introduced by
this CL are crashes that could have happened during stack
copying instead. Those are harder to find because stacks are
copied much less often than the garbage collector is invoked.

In service of that goal, remove ARGSIZE macros from
asm_*.s, change switchtoM to have no arguments
(it doesn't have any live arguments), and add
args and locals information to some frames that
can call back into Go.

LGTM=khr
R=khr, rlh
CC=golang-codereviews
https://golang.org/cl/137540043
2014-09-12 07:46:11 -04:00
api unicode: strconv: regexp: Upgrade to Unicode 7.0.0. 2014-08-18 20:26:10 +02:00
doc doc: link directly to https://golang.org/dl/ 2014-09-12 09:15:58 +10:00
include runtime: assume precisestack, copystack, StackCopyAlways, ScanStackByFrames 2014-09-09 13:39:57 -04:00
lib codereview: do not hit upload_complete on first patch 2014-08-06 16:12:24 -04:00
misc build: more adjustments for move from src/pkg to src 2014-09-08 00:22:40 -04:00
src runtime: stop scanning stack frames/args conservatively 2014-09-12 07:46:11 -04:00
test test: return errors earlier in run.go 2014-09-11 12:47:17 -07:00
.hgignore build: adjustments for move from src/pkg to src 2014-09-08 00:06:45 -04:00
.hgtags tag go1.3.1 2014-08-13 14:54:54 +10:00
AUTHORS A+C: Michael MacInnis (individual CLA) 2014-09-11 18:35:25 -07:00
CONTRIBUTORS A+C: Michael MacInnis (individual CLA) 2014-09-11 18:35:25 -07:00
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README README: Fix installation instructions 2013-11-20 13:47:37 -08:00
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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.