mirror of
https://github.com/golang/go
synced 2024-11-21 16:04:45 -07:00
966bf71366
Computer people have an agglutinating streak that I like to resist. As a time of execution: run time. As an adjective: run-time. As a noun: run-time support/code/library. Signed, Mr. Pedant. R=golang-dev, rsc CC=golang-dev https://golang.org/cl/4252048
100 lines
3.7 KiB
HTML
100 lines
3.7 KiB
HTML
<!-- Contributing to the gccgo frontend -->
|
|
|
|
<h2>Introduction</h2>
|
|
|
|
<p>
|
|
These are some notes on contributing to the <code>gccgo</code>
|
|
frontend for GCC. For information on contributing to parts of Go other
|
|
than <code>gccgo</code>, see <a href="contribute.html">Contributing to
|
|
the Go project</a>. For information on building <code>gccgo</code>
|
|
for yourself, see <a href="gccgo_install.html">Setting up and using
|
|
gccgo</a>.
|
|
</p>
|
|
|
|
<h2>Legal Prerequisites</h2>
|
|
|
|
<p>
|
|
You must follow the <a href="contribute.html#copyright">Go copyright
|
|
rules.</a>
|
|
</p>
|
|
|
|
<h2>Code</h2>
|
|
|
|
<p>
|
|
The source code for the <code>gccgo</code> frontend may be found at
|
|
<a href="http://code.google.com/p/gofrontend">http://code.google.com/p/gofrontend</a>.
|
|
Changes made to that project are routinely merged into the source code
|
|
hosted at <code>gcc.gnu.org</code>. The <code>gofrontend</code>
|
|
project includes only the Go frontend proper. These are the files
|
|
which in the <code>gcc</code> sources may be found in the
|
|
directories <code>gcc/go</code> and <code>libgo</code>.
|
|
The <code>gcc</code> sources also include a copy of
|
|
the <code>test</code> directory
|
|
from <a href="http://code.google.com/p/go">the main Go repository</a>.
|
|
|
|
<p>
|
|
The frontend is written in C++ and as such the GNU coding standards do
|
|
not entirely apply; in writing code for the frontend, follow the
|
|
formatting of the surrounding code. Although the frontend is
|
|
currently closely tied to the rest of the <code>gcc</code> codebase,
|
|
we plan to make it more independent. Any new code that uses other
|
|
parts of <code>gcc</code> should be placed in an appropriate file,
|
|
such as <code>gogo-tree.cc</code>. Eventually
|
|
all <code>gcc</code>-specific code should migrate to
|
|
a <code>gcc-interface</code> subdirectory.
|
|
</p>
|
|
|
|
<p>
|
|
The run-time library for <code>gccgo</code> is mostly the same as the
|
|
library in <a href="http://code.google.com/p/go">the main Go
|
|
repository</a>. The library code in the Go repository is periodically
|
|
copied into the <code>gofrontend</code> and the <code>gcc</code>
|
|
repositories. Accordingly, most library changes should be made in the
|
|
main Go repository. Changes to the few <code>gccgo</code>-specific
|
|
parts of the library should follow the process described here.
|
|
The <code>gccgo</code>-specific parts of the library are everything in
|
|
the <code>libgo</code> directory except for the <code>libgo/go</code>
|
|
subdirectory.
|
|
</p>
|
|
|
|
<h2>Testing</h2>
|
|
|
|
<p>
|
|
All patches must be tested. There are two test suites. A patch that
|
|
introduces new failures is not acceptable.
|
|
</p>
|
|
|
|
<p>
|
|
To run the compiler test suite, run <code>make check-go</code> in the
|
|
<code>gcc</code> subdirectory of your build directory. This will run
|
|
various tests underneath <code>gcc/testsuite/go.*</code>. This
|
|
includes a copy of the tests in the main Go repository, which are run
|
|
using the DejaGNU script found in
|
|
in <code>gcc/testsuite/go.test/go-test.exp</code>. Many of the
|
|
compiler tests may be run without the Go library, but some do require
|
|
the library to built first.
|
|
</p>
|
|
|
|
<p>
|
|
To run the library test suite, run <code>make
|
|
check-target-libgo</code> in the top level of your build directory.
|
|
</p>
|
|
|
|
<p>
|
|
Most new tests should be submitted to the main Go repository for
|
|
copying into the <code>gccgo</code> repository. If there is a need
|
|
for specific tests for <code>gccgo</code>, they should go in
|
|
the <code>gcc/testsuite/go.go-torture</code>
|
|
or <code>gcc/testsuite/go.dg</code> directories in
|
|
the <code>gcc.gnu.org</code> repository.
|
|
</p>
|
|
|
|
<h2>Submitting Changes</h2>
|
|
|
|
<p>
|
|
Changes to the Go frontend should follow the same process as for the
|
|
main Go repository, only for the <code>gofrontend</code> project
|
|
rather than the <code>go</code> project. Those changes will then be
|
|
merged into the <code>gcc</code> sources.
|
|
</p>
|