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2011-08-11 14:46:57 -04:00
scripts update to 2.6.39-rc5-git1 2011-04-28 16:22:58 -04:00
.gitignore Cleanup - make crypto manager options match reality 2011-06-29 11:09:56 -04:00
acpi-ec-add-delay-before-write.patch Linux 2.6.37-rc1 2010-11-02 13:06:42 -04:00
add-appleir-usb-driver.patch rebase and nuke patches 2011-05-30 07:23:14 -04:00
block-stray-block-put-after-teardown.patch Sync with f15 for rhbz 728872 2011-08-09 16:32:30 -04:00
config-arm-generic From: David Marlin <dmarlin@redhat.com> 2011-08-09 17:14:47 -04:00
config-arm-omap-generic From: David Marlin <dmarlin@redhat.com> 2011-08-09 17:14:47 -04:00
config-debug Revert "3.0-git3 snapshot" 2011-07-27 15:14:17 -04:00
config-generic Deselect CONFIG_DECNET. Unmaintained, and rubbish. 2011-08-05 16:13:33 -04:00
config-i686-PAE Re-enable I2O, but only for 32-bit x86 (#629676) 2010-09-03 05:24:38 -04:00
config-ia64-generic Centralise CPU_FREQ options into config-generic. 2011-07-07 15:44:13 -04:00
config-local Add support for local rebuild config option overrides 2011-01-10 17:37:27 -05:00
config-nodebug Add patch to fix epoll lockdep warnings 2011-08-02 15:29:27 -04:00
config-powerpc32-generic first pass of new config options in 3.0-rc1 2011-05-30 10:25:28 -04:00
config-powerpc32-smp initial srpm import 2010-07-29 16:46:31 -07:00
config-powerpc64 Revert "3.0-git3 snapshot" 2011-07-27 15:14:17 -04:00
config-powerpc-generic Revert "3.0-git3 snapshot" 2011-07-27 15:14:17 -04:00
config-rhel-generic disable parallel port IDE. 2010-09-27 14:03:13 -04:00
config-s390x second pass of new kconfig options 2011-05-30 10:36:45 -04:00
config-sparc64-generic Centralise CPU_FREQ options into config-generic. 2011-07-07 15:44:13 -04:00
config-x86_64-generic enable for 64bit too 2011-08-09 16:48:18 -04:00
config-x86-generic Enable CONFIG_SAMSUNG_LAPTOP (rhbz 729363) 2011-08-09 13:32:21 -04:00
die-floppy-die.patch initial srpm import 2010-07-29 16:46:31 -07:00
disable-i8042-check-on-apple-mac.patch initial srpm import 2010-07-29 16:46:31 -07:00
dmar-disable-when-ricoh-multifunction.patch Revert "3.0-git3 snapshot" 2011-07-27 15:14:17 -04:00
drm-intel-make-lvds-work.patch rebase and nuke patches 2011-05-30 07:23:14 -04:00
drm-intel-next.patch initial srpm import 2010-07-29 16:46:31 -07:00
drm-nouveau-updates.patch update to 2.6.38-git6 2011-03-18 13:15:43 -04:00
efi-dont-map-boot-services-on-32bit.patch Add patch to fix 32bit EFI service mapping (rhbz 726701) 2011-08-05 08:47:23 -04:00
epoll-fix-spurious-lockdep-warnings.patch Add patch to fix epoll lockdep warnings 2011-08-02 15:29:27 -04:00
find-provides initial srpm import 2010-07-29 16:46:31 -07:00
fix_xen_guest_on_old_EC2.patch initial srpm import 2010-07-29 16:46:31 -07:00
fix-cdc-ncm-dma-stack-vars.patch Add patches for rhbz 720128,720054 2011-08-03 08:09:14 -04:00
genkey initial srpm import 2010-07-29 16:46:31 -07:00
git-linus.diff initial srpm import 2010-07-29 16:46:31 -07:00
hda_intel-prealloc-4mb-dmabuffer.patch Revert "3.0-git3 snapshot" 2011-07-27 15:14:17 -04:00
hfsplus-ensure-bio-requests-are-not-smaller-than-the.patch Add fix from 3.1 for mounting HFSPlus filesystems 2011-08-02 19:31:56 -04:00
kernel.spec Sync with f15 for rhbz 729340. Whee! 2011-08-11 14:46:57 -04:00
linux-2.6-32bit-mmap-exec-randomization.patch add info from paxtest to patch header 2011-06-17 14:54:42 -04:00
linux-2.6-acpi-debug-infinite-loop.patch update to snapshot 2.6.38-git19 2011-03-28 17:22:32 -04:00
linux-2.6-acpi-video-dos.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-compile-fixes.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-crash-driver.patch update to 2.6.38-git6 2011-03-18 13:15:43 -04:00
linux-2.6-debug-taint-vm.patch rediff, remove unnecessary export, and add modules printing to bad_page() 2011-07-21 21:01:32 -04:00
linux-2.6-debug-vm-would-have-oomkilled.patch update debug-vm-would-have-oomkilled 2010-11-29 21:10:59 -05:00
linux-2.6-defaults-acpi-video.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-defaults-aspm.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-e1000-ich9-montevina.patch build fix, again. I suck. 2010-09-29 18:51:28 -04:00
linux-2.6-enable-more-pci-autosuspend.patch Linux 2.6.37-rc1 2010-11-02 13:06:42 -04:00
linux-2.6-i386-nx-emulation.patch Update to 3.0-rc3 2011-06-14 09:54:44 -04:00
linux-2.6-input-kill-stupid-messages.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-intel-iommu-igfx.patch Revert "3.0-git3 snapshot" 2011-07-27 15:14:17 -04:00
linux-2.6-makefile-after_link.patch Add s390 vdso AFTER_LINK to Roland's linux-2.6-makefile-after_link.patch 2010-09-23 12:15:30 -04:00
linux-2.6-serial-460800.patch update to 2.6.38-rc2 2011-01-22 13:34:11 -05:00
linux-2.6-silence-acpi-blacklist.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-silence-fbcon-logo.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-silence-noise.patch Revert "3.0-git3 snapshot" 2011-07-27 15:14:17 -04:00
linux-2.6-upstream-reverts.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-usb-pci-autosuspend.patch Add more USB runtime power management 2010-09-17 13:47:45 -04:00
linux-2.6-v4l-dvb-experimental.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-v4l-dvb-fixes.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-v4l-dvb-update.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-v4l-dvb-uvcvideo-update.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-zd1211rw-fix-invalid-signal-values-from-device.patch Revert "3.0-git3 snapshot" 2011-07-27 15:14:17 -04:00
linux-2.6.29-sparc-IOC_TYPECHECK.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6.30-no-pcspkr-modalias.patch Revert "3.0-git3 snapshot" 2011-07-27 15:14:17 -04:00
Makefile Revert "3.0-git3 snapshot" 2011-07-27 15:14:17 -04:00
Makefile.config From: David Marlin <dmarlin@redhat.com> 2011-08-09 17:14:47 -04:00
merge.pl initial srpm import 2010-07-29 16:46:31 -07:00
README.txt Test commit to verify working email notifications to kernel team 2010-08-17 10:29:52 -05:00
runtime_pm_fixups.patch fix buglet(?) in runtime_pm_fixups.patch 2011-01-24 13:55:48 -05:00
sources Linux 3.0.1 stable update. Drop included patches 2011-08-05 10:54:24 -04:00
TODO document some other diffs 2011-06-17 16:25:12 -04:00
udlfb-bind-framebuffer-to-interface.patch Add patch from linux-next to help multiseat issues 2011-07-28 13:02:55 -04:00
ums-realtek-driver-uses-stack-memory-for-DMA.patch Add patches for rhbz 720128,720054 2011-08-03 08:09:14 -04:00
utrace.patch ptrace_report_syscall: check if TIF_SYSCALL_EMU is defined 2011-08-09 14:10:15 -04:00
xen-blkfront-name-adjust.patch Sync with f15 for rhbz 729340. Whee! 2011-08-11 14:46:57 -04:00

		Kernel package tips & tricks.
		~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The kernel is one of the more complicated packages in the distro, and
for the newcomer, some of the voodoo in the spec file can be somewhat scary.
This file attempts to document some of the magic.


Speeding up make prep
---------------------
The kernel is nearly 500MB of source code, and as such, 'make prep'
takes a while. The spec file employs some trickery so that repeated
invocations of make prep don't take as long.  Ordinarily the %prep
phase of a package will delete the tree it is about to untar/patch.
The kernel %prep keeps around an unpatched version of the tree,
and makes a symlink tree clone of that clean tree and than applies
the patches listed in the spec to the symlink tree.
This makes a huge difference if you're doing multiple make preps a day.
As an added bonus, doing a diff between the clean tree and the symlink
tree is slightly faster than it would be doing two proper copies of the tree.


build logs.
-----------
There's a convenience helper script in scripts/grab-logs.sh
that will grab the build logs from koji for the kernel version reported
by make verrel


config heirarchy.
-----------------
Instead of having to maintain a config file for every arch variant we build on,
the kernel spec uses a nested system of configs.  At the top level, is
config-generic. Add options here that should be present in every possible
config on all architectures.
Beneath this are per-arch overrides. For example config-x86-generic add
additional x86 specific options, and also _override_ any options that were
set in config-generic.
There exist two additional overrides, config-debug, and config-nodebug,
which override -generic, and the per-arch overrides. It is documented
further below.

debug options.
--------------
This is a little complicated, as the purpose & meaning of this changes
depending on where we are in the release cycle.
If we are building for a current stable release, 'make release' has
typically been run already, which sets up the following..
- Two builds occur, a 'kernel' and a 'kernel-debug' flavor.
- kernel-debug will get various heavyweight debugging options like
  lockdep etc turned on.

If we are building for rawhide, 'make debug' has been run, which changes
the status quo to:
- We only build one kernel 'kernel'
- The debug options from 'config-debug' are always turned on.
This is done to increase coverage testing, as not many people actually
run kernel-debug.

To add new debug options, add an option to _both_ config-debug and config-nodebug,
and also new stanzas to the Makefile 'debug' and 'release' targets.

Sometimes debug options get added to config-generic, or per-arch overrides
instead of config-[no]debug. In this instance, the options should have no
discernable performance impact, otherwise they belong in the debug files.