'make pacman-pkg' for architectures with device tree support (i.e., arm,
arm64, etc.) shows logs like follows:
Installing dtbs...
INSTALL /home/masahiro/linux/pacman/linux-upstream/pkg/linux-upstream/usr//lib/modules/6.14.0-rc6+/dtb/actions/s700-cubieboard7.dtb
INSTALL /home/masahiro/linux/pacman/linux-upstream/pkg/linux-upstream/usr//lib/modules/6.14.0-rc6+/dtb/actions/s900-bubblegum-96.dtb
INSTALL /home/masahiro/linux/pacman/linux-upstream/pkg/linux-upstream/usr//lib/modules/6.14.0-rc6+/dtb/airoha/en7581-evb.dtb
...
The double slashes ('//') between 'usr' and 'lib' are somewhat ugly.
Let's hardcode the module installation path because the package contents
should remain unaffected even if ${MODLIB} is overridden. Please note that
scripts/packages/{builddeb,kernel.spec} also hardcode the module
installation path.
With this change, the log will look better, as follows:
Installing dtbs...
INSTALL /home/masahiro/linux/pacman/linux-upstream/pkg/linux-upstream/usr/lib/modules/6.14.0-rc6+/dtb/actions/s700-cubieboard7.dtb
INSTALL /home/masahiro/linux/pacman/linux-upstream/pkg/linux-upstream/usr/lib/modules/6.14.0-rc6+/dtb/actions/s900-bubblegum-96.dtb
INSTALL /home/masahiro/linux/pacman/linux-upstream/pkg/linux-upstream/usr/lib/modules/6.14.0-rc6+/dtb/airoha/en7581-evb.dtb
...
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
The 'cpio' command is used solely for copying header files to the
temporary directory. However, there is no strong reason to use 'cpio'
for this purpose. For example, scripts/package/install-extmod-build
uses the 'tar' command to copy files.
This commit replaces the use of 'cpio' with 'tar' because 'tar' is
already used in this script to generate kheaders_data.tar.xz anyway.
Performance-wide, there is no significant difference between 'cpio'
and 'tar'.
[Before]
$ rm -fr kheaders; mkdir kheaders
$ time sh -c '
for f in include arch/x86/include
do
find "$f" -name "*.h"
done | cpio --quiet -pd kheaders
'
real 0m0.148s
user 0m0.021s
sys 0m0.140s
[After]
$ rm -fr kheaders; mkdir kheaders
$ time sh -c '
for f in include arch/x86/include
do
find "$f" -name "*.h"
done | tar -c -f - -T - | tar -xf - -C kheaders
'
real 0m0.098s
user 0m0.024s
sys 0m0.131s
Revert commit 69ef0920bd ("Docs: Add cpio requirement to changes.rst")
because 'cpio' is not used anywhere else during the kernel build.
Please note that the built-in initramfs is created by the in-tree tool,
usr/gen_init_cpio, so it does not rely on the external 'cpio' command
at all.
Remove 'cpio' from the package build dependencies as well.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
The Arch Linux glibc package contains a versioned dependency on
"linux-api-headers". If the linux-api-headers package provided by
pacman-pkg does not specify an explicit version this dependency is not
satisfied.
Fix the dependency by providing an explicit version.
Fixes: c8578539de ("kbuild: add script and target to generate pacman package")
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Add a new debug package to the PKGBUILD for the pacman-pkg target. The
debug package includes the non-stripped vmlinux file with debug symbols
for kernel debugging and profiling. The file is installed at
/usr/src/debug/${pkgbase}, with a symbolic link at
/usr/lib/modules/$(uname -r)/build/vmlinux. The debug package is built
by default.
Signed-off-by: Jose Fernandez <jose.fernandez@linux.dev>
Reviewed-by: Peter Jung <ptr1337@cachyos.org>
Acked-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
objtree is defined and exported by the top-level Makefile. I prefer
not to override it.
There is no need to pass the absolute path of objtree. PKGBUILD can
detect it by itself.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Christian Heusel <christian@heusel.eu>
All build and package functions share the following commands:
export MAKEFLAGS="${KBUILD_MAKEFLAGS}"
cd "${objtree}"
Factor out the common code.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Christian Heusel <christian@heusel.eu>
Introduce the PACMAN_EXTRAPACKAGES variable in PKGBUILD to allow users
to specify which additional packages are built by the pacman-pkg target.
Previously, the api-headers package was always included, and the headers
package was included only if CONFIG_MODULES=y. With this change, both
headers and api-headers packages are included by default. Users can now
control this behavior by setting PACMAN_EXTRAPACKAGES to a
space-separated list of desired extra packages or leaving it empty to
exclude all.
For example, to build only the base package without extras:
make pacman-pkg PACMAN_EXTRAPACKAGES=""
Signed-off-by: Jose Fernandez <jose.fernandez@linux.dev>
Reviewed-by: Peter Jung <ptr1337@cachyos.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Christian Heusel <christian@heusel.eu>
Tested-by: Christian Heusel <christian@heusel.eu>
Acked-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
pacman is the package manager used by Arch Linux and its derivates.
Creating native packages from the kernel tree has multiple advantages:
* The package triggers the correct hooks for initramfs generation and
bootloader configuration
* Uninstallation is complete and also invokes the relevant hooks
* New UAPI headers can be installed without any manual bookkeeping
The PKGBUILD file is a modified version of the one used for the
downstream Arch Linux "linux" package.
Extra steps that should not be necessary for a development kernel have
been removed and an UAPI header package has been added.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
