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__________________________________________________________________________
NVIDIA-INSTALLER SOURCE DOCUMENTATION
__________________________________________________________________________
Information on how to use the nvidia-installer is in:
(sec-02) INSTALLING THE NVIDIA DRIVER
of the NVIDIA driver README (available from the NVIDIA Linux driver
download page, and installed in /usr/share/doc/NVIDIA_GLX-1.0/).
There is not currently any formal documentation describing the
implementation of nvidia-installer, but the source code is fairly
well commented.
One interesting thing to note is that user interface shared libraries
are "built into" nvidia-installer to avoid potential problems with
the installer not being able to find the user interface libraries (or
finding the wrong ones, etc): after the shared lib is built, the utility
`gen-ui-array` is run on it to create a source file storing a byte
array of the data that is the shared library. When the installer runs,
it writes this byte data to a temporary file and then dlopens() it.
This directory also contains source for a simple tool 'mkprecompiled',
which is used for stamping nv-linux.o's (aka the kernel interfaces)
with the necessary information so that the installer can match it to a
running kernel.
To build a precompiled kernel interface, you might do the following:
sh NVIDIA-Linux-x86-1.0-XXXX.run --extract-only
cd NVIDIA-Linux-x86-1.0-XXXX/usr/src/nv/
make nv-linux.o
mkprecompiled --interface=nv-linux.o --output=nv-linux.o-mykernel \
--description="This is not an interesting description" \
--proc-version="`cat /proc/version`" \
--major=1 --minor=0 --patch=XXXX
mv nv-linux.o-mykernel precompiled/
(where "XXXX" is replaced with the driver version number).
To build a precompiled kernel interface for a kernel other than
the currently running one, you can build nv-linux.o with:
make nv-linux.o SYSSRC=/path/to/kernel-source
and extract the proc version string from a compressed kernel image with:
gzip -dc /boot/vmlinux.gz | strings | grep "^Linux version"
nvidia-installer will scan the contents of the usr/src/nv/precompiled/
directory for any precompiled kernel interfaces that match the running
kernel's /proc/version string.
If you would like to provide precompiled kernel interfaces for others
to use, you may build them as above. To use them, users can do the
following:
sh NVIDIA-Linux-x86-1.0-XXXX.run --extract-only
cp nv-linux.o-mykernel NVIDIA-Linux-x86-1.0-XXXX/usr/src/nv/
./NVIDIA-Linux-x86-1.0-XXXX/nvidia-installer
(Updated: 2003-09-23) The search path for directories containing
precompiled kernel interfaces has been extended; the heuristic
is now:
- if --precompiled-kernel-interfaces-path was specified, search
in that directory; if no match found, then
- search in the directory /lib/modules/precompiled/`uname -r`/nvidia/gfx/,
if no match found, then
- search in the usr/src/nv/precompiled directory of the .run file,
if no match found, then
- search on the ftp site, if no match found, then
- give up and just build the kernel module yourself
TODO:
- Edit/generate an XF86Config file
- Add new user interfaces (gtk+/qt/your toolkit of choice).
- Add additional tests to be run for the '--sanity' option.
- Cleanup memory leaks.
- Improve error messages.
- Internationalization.
Patches are very welcome, and may be submitted to linux-bugs@nvidia.com
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