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part of getting started with LLVM. The LLVM getting started document is in woeful need of attention. I may get to some of this, but some random notes for folks interested: 1) We need to separate the getting started steps for folks who are interested in the core LLVM libs and nothing else, folks interested in a nifty C++ toolchain and nothing else, and folks interested in both. 2) We should include documentation for both release archives, svn, and git in equal portion, and we should document all of the various repositories of interest: llvm, clang, clang-tools-extra, compiler-rt, lld, libcxx, test-suite. 3) We should document the CMake build. We should probably document the CMake build first, and give a fall-back set of docs for the Makefile build for the use cases where that is still the preferred solution. This would more closely match the use cases that folks in the open source community are likely to have, and would remove a point of discrepancy between Linux, Windows, and Mac instructions. 4) Probably a ton of other modernization stuff that I've not thought of here. Anyways, if anyone at all is interested, please help clean up this document. It is much needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189732 91177308-0d34-0410-b5e6-96231b3b80d8
LLVM Documentation
==================
LLVM's documentation is written in reStructuredText, a lightweight
plaintext markup language (file extension `.rst`). While the
reStructuredText documentation should be quite readable in source form, it
is mostly meant to be processed by the Sphinx documentation generation
system to create HTML pages which are hosted on <http://llvm.org/docs/> and
updated after every commit. Manpage output is also supported, see below.
If you instead would like to generate and view the HTML locally, install
Sphinx <http://sphinx-doc.org/> and then do:
cd docs/
make -f Makefile.sphinx
$BROWSER _build/html/index.html
The mapping between reStructuredText files and generated documentation is
`docs/Foo.rst` <-> `_build/html/Foo.html` <-> `http://llvm.org/docs/Foo.html`.
If you are interested in writing new documentation, you will want to read
`SphinxQuickstartTemplate.rst` which will get you writing documentation
very fast and includes examples of the most important reStructuredText
markup syntax.
Manpage Output
===============
Building the manpages is similar to building the HTML documentation. The
primary difference is to use the `man` makefile target, instead of the
default (which is `html`). Sphinx then produces the man pages in the
directory `_build/man/`.
cd docs/
make -f Makefile.sphinx man
man -l _build/man/FileCheck.1
The correspondence between .rst files and man pages is
`docs/CommandGuide/Foo.rst` <-> `_build/man/Foo.1`.
These .rst files are also included during HTML generation so they are also
viewable online (as noted above) at e.g.
`http://llvm.org/docs/CommandGuide/Foo.html`.