be818361b9
This CL enables moving the bulk of the object writing code out of liblink and into translated Go libraries in cmd/internal/obj, but it does not do the move. This CL introduces two new environment variables, $GOOBJ and $GOOBJWRITER, but both will be deleted along with the rest of the liblink C code. The default behavior of a build is unchanged by this CL: the C version of liblink uses the C object layout and writing code. If $GOOBJ=1, liblink invokes go tool objwriter instead. If $GOOBJ=2, liblink does its own layout and then invokes go tool objwriter, which checks that it gets the same answer. That is, in $GOOBJ=2 mode, both the C and the Go version of the code run, and the operation fails if the two produce different answers. This provides a very strong check that the translation is working correctly. Change-Id: I56ab49b07ccb2c7b81085f1d6950131047c6aa3c Reviewed-on: https://go-review.googlesource.com/3048 Reviewed-by: Ian Lance Taylor <iant@golang.org> |
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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.
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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.