The Linux kernel
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2012-01-26 14:12:58 -05:00
scripts bumpspecfile: get user name and email from git config 2011-11-29 05:45:06 -05:00
.gitignore Ignore all .xz and .bz2 files 2011-11-23 08:58:58 -05:00
acpi-ensure-thermal-limits-match-cpu-freq.patch Fixup acpi patch to select CPU_FREQ_TABLE so we don't get an undefined link 2011-08-30 10:23:12 -04:00
acpi-sony-nonvs-blacklist.patch Add another Sony laptop to the nonvs blacklist. (rhbz 641789) 2011-11-01 12:57:12 -04:00
arm-omap-dt-compat.patch update arm configs for 3.1 2011-08-16 12:56:09 -05:00
arm-smsc-support-reading-mac-address-from-device-tree.patch setup config for tegra based arm boards, add device tree 2011-08-16 11:33:15 -05:00
brcmfmac-gcc47.patch Re-enable CONFIG_BRCMFMAC builds (found work-around for GCC 4.7 builds) 2012-01-16 13:51:57 -05:00
compat-wireless-config-fixups.patch Re-enable CONFIG_BRCMFMAC builds (found work-around for GCC 4.7 builds) 2012-01-16 13:51:57 -05:00
compat-wireless-integrated-build.patch modpost: add option to allow external modules to avoid taint 2011-12-20 07:28:12 -05:00
compat-wireless-pr_fmt-warning-avoidance.patch Patch compat-wireless build to avoid "pr_fmt redefined" warnings 2012-01-05 14:00:32 -05:00
config-arm-generic Linux 3.3-rc1-git1 (upstream c1aab02dac690af7ff634d8e1cb3be6a04387eef) 2012-01-24 08:00:08 -05:00
config-arm-highbank pull in the arm config changes from f15 2011-12-23 10:28:48 -06:00
config-arm-imx Rebase to Linux 3.3-rc1 2012-01-20 13:32:57 -05:00
config-arm-kirkwood Rebase to Linux 3.3-rc1 2012-01-20 13:32:57 -05:00
config-arm-omap-generic Rebase to Linux 3.3-rc1 2012-01-20 13:32:57 -05:00
config-arm-tegra Rebase to Linux 3.3-rc1 2012-01-20 13:32:57 -05:00
config-backports modpost: add option to allow external modules to avoid taint 2011-12-20 07:28:12 -05:00
config-debug Disable kmemleak for release builds 2012-01-17 13:59:44 -05:00
config-generic Linux 3.3-rc1-git2 (upstream f8275f9694b8adf9f3498e747ea4c3e8b984499b) 2012-01-25 11:57:01 -05:00
config-i686-PAE Re-enable I2O, but only for 32-bit x86 (#629676) 2010-09-03 05:24:38 -04:00
config-local Add support for local rebuild config option overrides 2011-01-10 17:37:27 -05:00
config-nodebug Reenable debugging options. 2012-01-23 09:09:31 -05:00
config-powerpc32-generic Cleanup PowerPC configs 2011-10-27 15:15:12 -04:00
config-powerpc32-smp initial srpm import 2010-07-29 16:46:31 -07:00
config-powerpc64 Rebase to Linux 3.3-rc1 2012-01-20 13:32:57 -05:00
config-powerpc-generic Rebase to Linux 3.3-rc1 2012-01-20 13:32:57 -05:00
config-s390x Linux 3.1-git1 (138c4ae9cfda upstream) 2011-10-26 21:03:18 -04:00
config-sparc64-generic Rebase to Linux 3.3-rc1 2012-01-20 13:32:57 -05:00
config-x86_64-generic Rebase to Linux 3.3-rc1 2012-01-20 13:32:57 -05:00
config-x86-32-generic Rebase to Linux 3.3-rc1 2012-01-20 13:32:57 -05:00
config-x86-generic Enable CONFIG_EFI_STUB per Matthew Garrett 2012-01-26 14:12:58 -05:00
cpupower.config Create the kernel-tools package. WHEE 2011-08-17 21:19:57 -04:00
cpupower.service Create the kernel-tools package. WHEE 2011-08-17 21:19:57 -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 3.0-git3 snapshot 2011-07-25 09:46:01 -04:00
drm-edid-try-harder-to-fix-up-broken-headers.patch drm: try harder to fix bad edids 2011-12-16 11:19:59 -05:00
drm-intel-next.patch initial srpm import 2010-07-29 16:46:31 -07:00
efi-dont-map-boot-services-on-32bit.patch Add a few patches that were in f16 but not in rawhide 2011-08-16 10:31:40 -04:00
ext4-Support-check-none-nocheck-mount-options.patch Add patch to fix ext4 compatibility with ext2 mount option (rhbz 770172) 2012-01-10 13:17:37 -05:00
fix_xen_guest_on_old_EC2.patch initial srpm import 2010-07-29 16:46:31 -07:00
floppy-Remove-_hlt-related-functions.patch Linux 3.1-git2 snapshot (upstream f362f98e7c) 2011-10-28 15:42:03 -04:00
fs-Inval-cache-for-parent-block-device-if-fsync-called-on-part.patch Add patch to invalidate parent cache when fsync is called on a partition 2012-01-25 19:03:22 -05:00
kernel.spec Enable CONFIG_EFI_STUB per Matthew Garrett 2012-01-26 14:12:58 -05:00
kmemleak.patch Rebase to Linux 3.3-rc1 2012-01-20 13:32:57 -05:00
KVM-x86-extend-struct-x86_emulate_ops-with-get_cpuid.patch CVE-2012-0045 kvm: syscall instruction induced guest panic (rhbz 773392) 2012-01-13 11:18:16 -05:00
KVM-x86-fix-missing-checks-in-syscall-emulation.patch CVE-2012-0045 kvm: syscall instruction induced guest panic (rhbz 773392) 2012-01-13 11:18:16 -05:00
linux-2.6-32bit-mmap-exec-randomization.patch Merge some improvements to the 32bit mmap randomisation from Kees Cook. 2011-09-19 16:44:51 -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 3.0-git19 snapshot 2011-08-04 11:12:43 -04:00
linux-2.6-defaults-acpi-video.patch Rebase to Linux 3.3-rc1 2012-01-20 13:32:57 -05:00
linux-2.6-defaults-aspm.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-e1000-ich9-montevina.patch Linux 3.1-git1 (138c4ae9cfda upstream) 2011-10-26 21:03:18 -04:00
linux-2.6-i386-nx-emulation.patch Merge some improvements to the 32bit mmap randomisation from Kees Cook. 2011-09-19 16:44:51 -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 Linux 3.2-rc6 2011-12-17 09:02:41 -05:00
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 3.0-git3 snapshot 2011-07-25 09:46:01 -04:00
linux-2.6-upstream-reverts.patch initial srpm import 2010-07-29 16:46:31 -07:00
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-2.6.30-no-pcspkr-modalias.patch Linux-3.1-rc1 2011-08-08 10:17:46 -04:00
linux-3.1-keys-remove-special-keyring.patch Enabled the in-kernel idmapper. 2011-12-14 15:48:10 -05:00
Makefile Change maximum CPU support for x86-64. 2012-01-17 14:33:12 -05:00
Makefile.config iadd support for building highbank, imx and kirkwood kernel images on arm 2011-12-23 10:28:47 -06:00
Makefile.release add bug #'s 2012-01-19 16:13:59 -05:00
merge.pl initial srpm import 2010-07-29 16:46:31 -07:00
mod-extra.list Disable MTD 2012-01-13 16:07:41 -05:00
modpost-add-option-to-allow-external-modules-to-avoi.patch modpost: add option to allow external modules to avoid taint 2011-12-20 07:28:12 -05:00
PatchList.txt Rebase to Linux 3.3-rc1 2012-01-20 13:32:57 -05:00
pci-fix-ats-compile.patch iadd support for building highbank, imx and kirkwood kernel images on arm 2011-12-23 10:28:47 -06:00
quite-apm.patch Only print the apm_cpu_idle message once (rhbz #760341) 2011-12-05 16:52:21 -05:00
README.txt document inheritance/heirarchy of config generation 2012-01-13 15:42:52 -05:00
sources Linux 3.3-rc1-git3 (upstream aaad641eadfd3e74b0fbb68fcf539b9cef0415d0) 2012-01-25 20:02:48 -05:00
taint-vbox.patch Taint if virtualbox modules have been loaded. 2011-10-06 18:39:09 -04:00
TODO Remove CONFIG_BLK_DEV_AMD74XX duplicate entries 2012-01-17 10:32:48 -05:00
utrace.patch Update utrace.patch from Oleg Nesterov 2012-01-25 16:48:32 -05:00

		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.

The heirarchy looks like this..

                           config-generic
                                 |
                         config-x86-generic
                         |                |
             config-x86-32-generic   config-x86-64-generic

An option set in a lower level will override the same option set in one
of the higher levels.


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.