[ofa-general] ANNOUNCE: ofed kernel build updates
Michael S. Tsirkin
mst at dev.mellanox.co.il
Wed Jul 25 07:11:41 PDT 2007
Hi!
I'd like to announce a couple of updates that were recently made
to the build scripts on the ofed_kernel branch.
This is an attempt to answer repeated requests, aired at Sonoma,
to simplify access to kernel sources.
The idea is that a user of a supported kernel will just be able
to download an appropriate tarball and run with it without need for patching.
These changes are available from ofed_kernel git tree maintained by Vlad:
git://git.openfabrics.org/~vlad/ofed_kernel.git ofed_kernel
The code is mine, but the ideas mostly come from criticism
and code sent by Ira Weiny. Thanks, Ira!
Note that the changes were made in a backwards-compatible way,
so that existing scripts using configure/make will continue working.
What's new:
1. New script ofed_scripts/ofed_patch.sh
This will apply fixes and backport patches for a specific
kernel to the current tree.
Usage:
./ofed_scripts/ofed_patch.sh --with-backport=VERSION
This makes it possible for distro vendors to generate
a tarball pre-patched for a specific kernel.
2. New script ofed_scripts/ofed_makedist.sh
This script repeatedly clones the current repository,
runs ofed_scripts/ofed_patch.sh,
and then builds tarballs of ofed kernel source pre-patched
for supported kernel versions.
I plan to work with Vlad to run this script as part of
nightly builds, so that prepatched tarballs will become
available for download.
3. configure script made re-entrant
configure script does not apply patches anymore:
all it does is create configure.mk.kernel and autoconf.h files.
This finally makes it possible to change
configuration parameters just by re-running configure.
For backwards-compatibility, if configure detects
that ofed_scripts/ofed_patch.sh was not run yet,
it prints a warning and runs it automatically.
Feedback wellcome.
--
MST
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