bf9c71cb43
morestack writes the context pointer to gobuf.ctxt, but since morestack is written in assembly (and has to be very careful with state), it does *not* invoke the requisite write barrier for this write. Instead, we patch this up later, in newstack, where we invoke an explicit write barrier for ctxt. This already requires some subtle reasoning, and it's going to get a lot hairier with the hybrid barrier. Fix this by simplifying the whole mechanism. Instead of writing gobuf.ctxt in morestack, just pass the value of the context register to newstack and let it write it to gobuf.ctxt. This is a normal Go pointer write, so it gets the normal Go write barrier. No subtle reasoning required. Updates #17503. Change-Id: Ia6bf8459bfefc6828f53682ade32c02412e4db63 Reviewed-on: https://go-review.googlesource.com/31550 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> |
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README.md
The Go Programming Language
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.
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
Note that we do not accept pull requests and that we use the issue tracker for bug reports and proposals only. Please ask questions on https://forum.golangbridge.org or https://groups.google.com/forum/#!forum/golang-nuts.
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 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.