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f4c7a12c2c
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David Crawshaw f4c7a12c2c runtime: make module typemaps visible to the GC 
The map[typeOff]*_type object is created at run time and stored in
the moduledata. The moduledata object is marked by the linker as
SNOPTRDATA, so the reference is ignored by the GC. Running
misc/cgo/testplugin/test.bash with GOGC=1 will eventually collect
the typemap and crash.

This bug probably comes up in -linkshared binaries in Go 1.7.
I don't know why we haven't seen a report about this yet.

Fixes #17680

Change-Id: I0e9b5c006010e8edd51d9471651620ba665248d3
Reviewed-on: https://go-review.googlesource.com/32430
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Hudson-Doyle <michael.hudson@canonical.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-10-31 04:49:52 +00:00
.github doc: improve issue template 2016-08-29 03:33:28 +00:00
api syscall: remove X__cmsg_data from Cmsghdr 2016-10-30 19:04:09 +00:00
doc spec: update operator and delimiter section 2016-10-28 17:05:48 +00:00
lib/time lib/time: update to IANA release 2016g (September 2016) 2016-10-20 08:46:49 +00:00
misc cmd/link, plugin: use full plugin path for symbols 2016-10-31 04:48:42 +00:00
src runtime: make module typemaps visible to the GC 2016-10-31 04:49:52 +00:00
test cmd/compile: improve error message for unknown fields in structs 2016-10-29 05:33:14 +00:00
.gitattributes
.gitignore cmd/go: fail with nice error message on bad GOOS/GOARCH pair 2016-05-06 01:18:07 +00:00
AUTHORS A+C: automated updates 2016-06-24 02:21:02 +00:00
CONTRIBUTING.md doc: use new Gerrit URL and mention our instance in CONTRIBUTING.md 2016-03-09 00:52:42 +00:00
CONTRIBUTORS A+C: automated updates 2016-06-24 02:21:02 +00:00
favicon.ico website: recreate 16px and 32px favicon 2016-08-25 15:43:32 +00:00
LICENSE doc: revert copyright date to 2009 2016-06-01 22:40:04 +00:00
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README.md

The Go Programming Language

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--

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 file). 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-source.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 https://golang.org/doc/install or doc/install.html for more details.