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83 Commits

Author SHA1 Message Date
Jonas Gorski
f3923dab7b kernel: check the right directories for rebuild 
Pass KERNEL_FILE_DEPENDS to rdep instead of PKG_FILE_DEPENDS, which is
empty. Also don't pass $(CURDIR) as the directory to timestamp, as it
would also pick up non kernel related changes like image building code.

Should fix kernel being rebuild for unrelated changes, as well as not
being rebuild for changes in target/linux/generic.

Fixes: 22ef1c83b3 ("kernel: make the kernel build auto-clean the build dir like package build")
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
 2016-08-19 11:02:47 +02:00
Felix Fietkau
22ef1c83b3 kernel: make the kernel build auto-clean the build dir like package builds 
Previous behavior can be restored by using QUILT=1 on target/prepare

Signed-off-by: Felix Fietkau <nbd@nbd.name>
 2016-08-05 14:17:08 +02:00
Felix Fietkau
be6acba4dc build system: have tar use $SOURCE_DATE_EPOCH for --mtime 
The --mtime argument to 'tar' sets the modification time for all files within
the archive, which determines the timestamp files will get when they are
extracted. In this case, rootfs and other tarballs will get mtimes which
correspond to the last commit timestamp of the build system, as reported by
git/subversion.

This is a step towards reproducible image builds.

Signed-off-by: bryan newbold <bnewbold@robocracy.org>
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48586
 2016-01-31 23:29:16 +00:00
Felix Fietkau
3021d3139b kernel: remove .config.prev when running make kernel_*config to fix rebuild errors 
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48545
 2016-01-29 00:38:49 +00:00
Felix Fietkau
51c665bbdb kernel-build.mk: add .NOTPARALLEL 
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 42876
 2014-10-12 15:00:19 +00:00
John Crispin
2ef0acc5fc kernel-build: fix STRIP_KERNEL_EXPORTS for recent kernels 
Recent kernels started to mark exported symbols as global.
Adapt expressions in kernel-build.mk to also match global symbols
when grep'ing through nm output.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

SVN-Revision: 42555
 2014-09-15 16:18:48 +00:00
John Crispin
2e240a44c1 include: fix kernel download failure with git & local trees 
When using the options EXTERNAL_KERNEL_TREE or KERNEL_GIT_CLONE_URI,
the command "make downloads" fails as it tries to download the kernel
tarball despite the option. This doesn't happen during a regular build
as in that case, the dependency is conditionned through the LINUX_SITE
variable, which is not set in these cases.

Below is a snapshot of the error for an target using a 3.14 kernel:

make[3]: *** No rule to make target `.../dl/linux-3.14.tar.xz',
needed by `download'.  Stop.

Change-Id: I1244969c1bbf9c81a6a64d68ae88ac58b0f8e79e
Signed-off-by: Mathieu Olivari <mathieu@qca.qualcomm.com>

SVN-Revision: 40913
 2014-06-02 12:43:13 +00:00
Felix Fietkau
5a6a47e431 build: speed up kernel symbol export stripping 
GNU grep has a high per-expression setup overhead when compiling regular
expressions. Use -F to force it to interpret the input as fixed strings,
which is much faster (fraction of a second instead of multiple minutes).

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 39049
 2013-12-14 13:14:44 +00:00
Florian Fainelli
a890ccd6e0 buildroot: build a second pass kernel if initramfs is enabled 
If initramfs is enabled, build a second pass kernel containing the CPIO
rootfs, preliminary work to get non exclusive enabling of initramfs.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 37047
 2013-06-27 19:58:20 +00:00
Felix Fietkau
8933b918cd kernel: use -ffunction-sections, -fdata-sections and --gc-sections on mips 
in combination with kernel symbol export stripping this significantly reduces
the kernel image size

SVN-Revision: 35320
 2013-01-26 16:26:13 +00:00
Felix Fietkau
7809d73fd2 kernel: fix module export stripping 
SVN-Revision: 35319
 2013-01-26 16:26:04 +00:00
Felix Fietkau
24b31c9428 kernel: fix stripping symbol exports 
SVN-Revision: 34458
 2012-12-02 17:42:17 +00:00
Jo-Philipp Wich
5171edd8d5 kernel-build.mk: there is no tarball when using CONFIG_KERNEL_GIT_CLONE_URI or CONFIG_EXTERNAL_KERNEL_TREE, do not make the prepared stamp file depend on it in this case 
SVN-Revision: 28361
 2011-10-03 11:33:13 +00:00
Felix Fietkau
caf4747f0c build: clean up handling of the kernel config 
- support kernel config overlays in env/
- allow overriding the target kernel config with CONFIG_TARGET=platform|subtarget|env

SVN-Revision: 26498
 2011-04-06 14:48:55 +00:00
Lars-Peter Clausen
a97d6b0c95 Add kernel_nconfig make target 
SVN-Revision: 22518
 2010-08-06 21:36:35 +00:00
Felix Fietkau
fd8142403e add a build system option for collecting all kernel debug information (including modules) in a tarball 
SVN-Revision: 22327
 2010-07-21 15:18:24 +00:00
Felix Fietkau
8e808a54c2 Revert "sort Kconfig symbols automatically to make Kaloz happy :p" Relying on some sort implementations' weird behaviour of ignoring # and whitespaces at the beginning of a line is not a good idea, and it's certainly not portable 
SVN-Revision: 19675
 2010-02-16 21:34:50 +00:00
Gabor Juhos
03779da9c6 sort Kconfig symbols automatically to make Kaloz happy :p 
SVN-Revision: 19582
 2010-02-11 13:07:10 +00:00
Felix Fietkau
ea41d3a288 merge target kernel config files with subtarget config files and add a variable override for editing the target kernel config file with make kernel_menuconfig in case the subtarget contains overrides (thx, sn9) 
SVN-Revision: 18362
 2009-11-11 01:25:06 +00:00
Felix Fietkau
bb5a40c64b add an optional config option for stripping all unnecessary symbol exports from the kernel image 
SVN-Revision: 17181
 2009-08-08 14:22:04 +00:00
Felix Fietkau
6d782f93d8 kernel: make sure all patches are applied before running menuconfig or oldconfig 
SVN-Revision: 15325
 2009-04-21 13:08:56 +00:00
Felix Fietkau
ab8c8b019f enable quilt by default for the kernel tree 
SVN-Revision: 12400
 2008-08-27 14:14:00 +00:00
Felix Fietkau
811b00f646 fix make kernel_menuconfig for subtarget kernel config files 
SVN-Revision: 12376
 2008-08-23 23:45:28 +00:00
Felix Fietkau
a3a37d0bb1 rework parallel building to get rid of some warnings and add back support for parallelizing the kernel build fixes #3882 
SVN-Revision: 12322
 2008-08-16 16:59:47 +00:00
Felix Fietkau
d26fa58d25 create a platform config-* file if there is none already when running kernel_menuconfig or kernel_oldconfig 
SVN-Revision: 11460
 2008-06-13 15:28:31 +00:00
Felix Fietkau
4c665e6ca4 large improvement for parallel builds. works without V=99 now and without warnings. tested with -j on an 2x dual core opteron machine 
SVN-Revision: 11414
 2008-06-09 15:38:45 +00:00
Felix Fietkau
02bc11903e fix kernel config on kernel_menuconfig abort 
SVN-Revision: 11076
 2008-05-08 15:52:55 +00:00
Felix Fietkau
e2f7a60283 fixes for refresh/update handling 
SVN-Revision: 9063
 2007-09-29 04:29:11 +00:00
Felix Fietkau
dbeb0fad24 Refactor downloading code into download.mk Support multiple file downloads Support svn downloads 
SVN-Revision: 9057
 2007-09-29 00:05:48 +00:00
Felix Fietkau
986445a623 properly clean up after kernel_{old,menu}config 
SVN-Revision: 8737
 2007-09-11 00:14:37 +00:00
Felix Fietkau
01b6a90e3d fix kernel_menuconfig 
SVN-Revision: 8726
 2007-09-10 01:04:57 +00:00
Felix Fietkau
a9d683ca91 major target cleanup. it is now possible to have subtargets that can override many target settings, including arch - merge adm5120, adm5120eb. target profiles still need to be adapted for subtargets 
SVN-Revision: 8694
 2007-09-08 19:55:42 +00:00
Felix Fietkau
56231056ea strip the kernel version suffix from target directories, except for brcm-2.4 (the -2.4 will be included in the board name here). CONFIG_LINUX_<ver>_<board> becomes CONFIG_TARGET_<board>, same for profiles. 
SVN-Revision: 8653
 2007-09-06 16:27:37 +00:00
Nicolas Thill
b35e6fe3ba include kernel-version.mk from kernel.mk so that a correct KERNEL_PATCHVER is always available 
SVN-Revision: 8494
 2007-08-26 13:26:02 +00:00
Felix Fietkau
c6bc77ea36 build system cleanup/restructuring as described in http://lists.openwrt.org/pipermail/openwrt-devel/2007-August/001159.html 
SVN-Revision: 8362
 2007-08-07 00:04:25 +00:00
Felix Fietkau
d6666fdd40 fix image installation 
SVN-Revision: 8324
 2007-08-03 01:21:41 +00:00
Felix Fietkau
40c1241377 silence 
SVN-Revision: 8252
 2007-07-30 23:04:24 +00:00
Felix Fietkau
d7f2cb1642 next round of cleanup, convert target/ - make -j works now ;) 
SVN-Revision: 8242
 2007-07-30 21:14:08 +00:00
Felix Fietkau
35d116c85b more dependency fixes 
SVN-Revision: 8115
 2007-07-23 02:41:33 +00:00
Felix Fietkau
7031534325 prevent the new config changes from interfering with kernel_menuconfig 
SVN-Revision: 8031
 2007-07-18 12:05:59 +00:00
Felix Fietkau
8e42553971 dynamically enable/disable kernel config options for kmod packages based on build system config 
SVN-Revision: 8026
 2007-07-18 11:31:01 +00:00
Felix Fietkau
6178152ee8 add kernel_oldconfig target 
SVN-Revision: 8003
 2007-07-16 10:03:03 +00:00
Felix Fietkau
0806675217 kernel: fix dependencies for .config, use selections from oldconfig when running menuconfig 
SVN-Revision: 7997
 2007-07-16 05:28:13 +00:00
Felix Fietkau
5fe0203420 merge the kernel config parts at dump time, so that overrides that disable certain features work 
SVN-Revision: 7812
 2007-06-30 21:49:25 +00:00
Felix Fietkau
f019ac4dc9 prepare for the transition to linux 2.6.22 - make it possible to override the kernel version in the target makefile 
SVN-Revision: 7644
 2007-06-16 01:56:04 +00:00
Felix Fietkau
3b6b7a2d1b implement quilt handling for the kernel tree ... and there was much rejoicing! 
SVN-Revision: 7474
 2007-06-03 08:28:05 +00:00
Felix Fietkau
84b235140c fix pcmcia/pccard build defaults 
SVN-Revision: 7275
 2007-05-19 16:16:48 +00:00
Felix Fietkau
4c6c987f09 Improved autorebuild for kernel related stuff. - make modules_install in the kernel tree is no longer called - make modules is called on every target/compile run - kmod packages pull the kernel modules directly out of the kernel tree and have proper file depends on them 
SVN-Revision: 6998
 2007-04-18 12:28:38 +00:00
Felix Fietkau
bbe7bd4f29 remove reference to unused .kernel.mk 
SVN-Revision: 6959
 2007-04-15 21:39:30 +00:00
Felix Fietkau
35317253e6 trigger a kernel module rebuild when the kernel config changes 
SVN-Revision: 6671
 2007-03-24 17:05:26 +00:00