| commit | 77e528293bbb51a92d16a5e77a8d7920c96764bd | [log] [tgz] |
|---|---|---|
| author | Austin Clements <austin@google.com> | Wed Aug 26 15:06:43 2015 -0400 |
| committer | Austin Clements <austin@google.com> | Sun Aug 30 16:07:02 2015 +0000 |
| tree | 8ab0cea7202ec223cc3bddfad34002f674dfd413 | |
| parent | 3bfc9df21aefe486de2c8a620a36fac178650a8c [diff] |
runtime: check that stack barrier unwind is in sync Currently the stack barrier stub blindly unwinds the next stack barrier from the G's stack barrier array without checking that it's the right stack barrier. If through some bug the stack barrier array position gets out of sync with where we actually are on the stack, this could return to the wrong PC, which would lead to difficult to debug crashes. To address this, this commit adds a check to the amd64 stack barrier stub that it's unwinding the correct stack barrier. Updates #12238. Change-Id: If824d95191d07e2512dc5dba0d9978cfd9f54e02 Reviewed-on: https://go-review.googlesource.com/13948 Reviewed-by: Russ Cox <rsc@golang.org>
Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
For documentation about how to install and use Go, visit https://golang.org/ or load doc/install-source.html in your web browser.
Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.
Please report issues here: https://golang.org/issue/new
Go is the work of hundreds of contributors. We appreciate your help!
To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html
Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.
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.