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Russ Cox 11e53e46a6 runtime: crash if we see an invalid pointer into GC arena
This will help find bugs during the release freeze.
It's not clear it should be kept for the release itself.
That's issue 8861.

The most likely thing that would trigger this is stale
pointers that previously were ignored or caused memory
leaks. These were allowed due to the use of conservative
collection. Now that everything is precise, we should not
see them anymore.

The small number check reinforces what the stack copier
is already doing, catching the storage of integers in pointers.
It caught issue 8864.

The check is disabled if _cgo_allocate is linked into the binary,
which is to say if the binary is using SWIG to allocate untyped
Go memory. In that case, there are invalid pointers and there's
nothing we can do about it.

LGTM=rlh
R=golang-codereviews, dvyukov, rlh
CC=golang-codereviews, iant, khr, r
https://golang.org/cl/148470043
2014-10-07 11:07:18 -04:00
api unicode: strconv: regexp: Upgrade to Unicode 7.0.0. 2014-08-18 20:26:10 +02:00
doc doc/go1.4.txt: useless change to tickle builders 2014-10-06 22:22:47 -07:00
include build: fix elf builds 2014-09-24 14:45:11 -07:00
lib codereview: do not hit upload_complete on first patch 2014-08-06 16:12:24 -04:00
misc misc/cgo/test: fail issue 7978 with clearer error when GOTRACEBACK != 2 2014-10-03 16:42:18 -04:00
src runtime: crash if we see an invalid pointer into GC arena 2014-10-07 11:07:18 -04:00
test cmd/gc: prohibit short variable declarations containing duplicate symbols 2014-10-06 17:16:39 -04:00
.hgignore .hgignore: delete some dregs 2014-09-25 17:30:12 -07:00
.hgtags tag go1.3.3 2014-10-01 13:38:00 +10:00
AUTHORS A+C: Jens Frederich (individual CLA) 2014-10-06 10:41:24 -07:00
CONTRIBUTORS A+C: Jens Frederich (individual CLA) 2014-10-06 10:41:24 -07:00
favicon.ico godoc: update favicon 2012-10-11 17:02:36 +11:00
LICENSE
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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.