mirror of
https://github.com/golang/go
synced 2024-11-25 10:38:00 -07:00
9bebe741d2
gccgo will be distributed under the same license as the rest of the Go code. R=r, rsc http://go/go-review/1024019
92 lines
3.3 KiB
HTML
92 lines
3.3 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 in
|
|
the directory <code>gcc/go</code>. 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 gcc
|
|
codebase, we plan to make it more independent. Any new code which
|
|
uses other parts of gcc should be segregated in an appropriate file,
|
|
such as <code>gogo-tree.cc</code>.
|
|
</p>
|
|
|
|
<p>
|
|
The runtime library for <code>gccgo</code> is mostly the same as the
|
|
library in the main Mercurial repository. The library code in the
|
|
Mercurial repository is periodically copied into
|
|
the <code>gccgo</code> repository. Accordingly, most library changes
|
|
should be made in Mercurial. 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 Mercurial 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 Mercurial 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.
|
|
</p>
|
|
|
|
<h2>Submitting Changes</h2>
|
|
|
|
<p>
|
|
Proposing a patch should follow the standard GCC rules. That is, the
|
|
patch should be sent to the mailing
|
|
list <code>gcc-patches@gcc.gnu.org</code> as a diff—the output
|
|
of the <code>diff</code> program with the <code>-c</code>
|
|
or <code>-u</code> option. In the future we are likely to set up a
|
|
separate gccgo-specific mailing list, which should also be CC'ed; we
|
|
will update this document at that time. Patch emails should include a
|
|
ChangeLog entry, though the ChangeLog entry should not be in the diff
|
|
itself. ChangeLog files are a standard part of GNU programs; see
|
|
<a href="http://www.gnu.org/prep/standards/html_node/Change-Logs.html">the
|
|
GNU coding standards</a>.
|
|
</p>
|