Commit Graph

118 Commits

Author SHA1 Message Date
Kevin Locke
3ced71d273 kbuild: deb-pkg: set version for linux-headers paths
As a result of the switch to dh_listpackages, $version is no longer set
when install_kernel_headers() is called.  This causes files in the
linux-headers deb package to be installed to a path with an empty
$version (e.g. /usr/src/linux-headers-/scripts/sign-file rather than
/usr/src/linux-headers-6.3.0-rc3/scripts/sign-file).

To avoid this, while continuing to use the version information from
dh_listpackages, pass $version from $package as the second argument
of install_kernel_headers().

Fixes: 36862e14e3 ("kbuild: deb-pkg: use dh_listpackages to know enabled packages")
Signed-off-by: Kevin Locke <kevin@kevinlocke.name>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-03-22 10:13:16 +09:00
Masahiro Yamada
36862e14e3 kbuild: deb-pkg: use dh_listpackages to know enabled packages
Use dh_listpackages to get a list of all binary packages.

With this, debian/control lists which binary packages will be produced.
Previously, ARCH=um listed linux-libc-dev in debian/control, but it
was not generated because each of mkdebian and builddeb independently
maintained the if-conditionals.

Another motivation is to allow scripts/package/builddeb to get the
package name (linux-image-*, etc.) dynamically from debian/control.

This will also allow the BuildProfile to control the generation of
the binary packages.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-03-15 15:15:07 +09:00
Masahiro Yamada
b611daae5e kbuild: deb-pkg: split image and debug objects staging out into functions
Prepare for the refactoring in the next commit.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-03-15 15:15:07 +09:00
Sven Joachim
a5e40d8631 builddeb: Consolidate consecutive chmod calls into one
No need to call chmod three times when it can do everything at once.

Signed-off-by: Sven Joachim <svenjoac@gmx.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-01-26 12:43:33 +09:00
Josh Poimboeuf
03f16cd020 objtool: Add CONFIG_OBJTOOL
Now that stack validation is an optional feature of objtool, add
CONFIG_OBJTOOL and replace most usages of CONFIG_STACK_VALIDATION with
it.

CONFIG_STACK_VALIDATION can now be considered to be frame-pointer
specific.  CONFIG_UNWINDER_ORC is already inherently valid for live
patching, so no need to "validate" it.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Link: https://lkml.kernel.org/r/939bf3d85604b2a126412bf11af6e3bd3b872bcb.1650300597.git.jpoimboe@redhat.com
2022-04-22 12:32:03 +02:00
Sven Joachim
d1889589a4 builddeb: Fix rootless build in setuid/setgid directory
Building 5.10-rc1 in a setgid directory failed with the following
error:

dpkg-deb: error: control directory has bad permissions 2755 (must be
>=0755 and <=0775)

When building with fakeroot, the earlier chown call would have removed
the setgid bits, but in a rootless build they remain.

Fixes: 3e85418036 ("builddeb: Enable rootless builds")
Cc: Guillem Jover <guillem@hadrons.org>
Signed-off-by: Sven Joachim <svenjoac@gmx.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-11-02 11:31:00 +09:00
Masahiro Yamada
bac977cbc0 kbuild: deb-pkg: do not build linux-headers package if CONFIG_MODULES=n
Since commit 269a535ca9 ("modpost: generate vmlinux.symvers and
reuse it for the second modpost"), with CONFIG_MODULES disabled,
"make deb-pkg" (or "make bindeb-pkg") fails with:

  find: ‘Module.symvers’: No such file or directory

If CONFIG_MODULES is disabled, it doesn't really make sense to build
the linux-headers package.

Fixes: 269a535ca9 ("modpost: generate vmlinux.symvers and reuse it for the second modpost")
Reported-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-10-14 12:49:34 +09:00
Guillem Jover
3e85418036 builddeb: Enable rootless builds
This makes it possible to build the Debian packages without requiring
(pseudo-)root privileges, when the build drivers support this mode
of operation.

See-Also: /usr/share/doc/dpkg/rootless-builds.txt.gz
Signed-off-by: Guillem Jover <guillem@hadrons.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-10-09 23:59:16 +09:00
Guillem Jover
51ccdbfbed builddeb: Pass -n to gzip for reproducible packages
We should not be encoding the timestamp, otherwise we end up generating
unreproducible files that cascade into unreproducible packages.

Signed-off-by: Guillem Jover <guillem@hadrons.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-10-09 23:57:30 +09:00
Masahiro Yamada
596b0474d3 kbuild: preprocess module linker script
There was a request to preprocess the module linker script like we
do for the vmlinux one. (https://lkml.org/lkml/2020/8/21/512)

The difference between vmlinux.lds and module.lds is that the latter
is needed for external module builds, thus must be cleaned up by
'make mrproper' instead of 'make clean'. Also, it must be created
by 'make modules_prepare'.

You cannot put it in arch/$(SRCARCH)/kernel/, which is cleaned up by
'make clean'. I moved arch/$(SRCARCH)/kernel/module.lds to
arch/$(SRCARCH)/include/asm/module.lds.h, which is included from
scripts/module.lds.S.

scripts/module.lds is fine because 'make clean' keeps all the
build artifacts under scripts/.

You can add arch-specific sections in <asm/module.lds.h>.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Jessica Yu <jeyu@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Jessica Yu <jeyu@kernel.org>
2020-09-25 00:36:41 +09:00
Masahiro Yamada
451dff37f0 builddeb: split libc headers deployment out into a function
Deploy user-space headers (linux-libc-dev package) in a separate
function for readability.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-01-29 01:51:30 +09:00
Masahiro Yamada
3126c17d28 builddeb: split kernel headers deployment out into a function
Deploy kernel headers (linux-headers package) in a separate function
for readability.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-01-29 01:51:30 +09:00
Masahiro Yamada
aae6a67124 builddeb: remove redundant make for ARCH=um
The kernel build has already been done before builddeb is invoked.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-01-29 01:51:30 +09:00
Masahiro Yamada
9a92eee387 builddeb: avoid invoking sub-shells where possible
The commands surrounded by ( ... ) is run in a sub-shell, but you do
not have to spawn a sub-shell for every single line.

Use just one ( ... ) for creating debian/hdrsrcfiles.

For tar, use -C option instead.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-01-29 01:51:30 +09:00
Masahiro Yamada
f9a4711ebb builddeb: remove redundant $objtree/
This script works only when it is invoked in the $objtree, that is,
it is already relying on $objtree is '.'

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-01-29 01:51:30 +09:00
Masahiro Yamada
1694e94e4f builddeb: match temporary directory name to the package name
The temporary directory names, debian/hdrtmp (linux-headers package)
vs debian/headertmp (linux-libc-dev package), are confusing.

Matching the directory name to the package name is clearer, IMHO.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-01-29 01:51:30 +09:00
Masahiro Yamada
7e61b167eb builddeb: remove unneeded files in hdrobjfiles for headers package
- We do not need tools/objtool/fixdep or tools/objtool/sync-check.sh
   for building external modules. Including tools/objtool/objtool is
   enough.

 - gcc-common.h is a check-in file. I do not see any point to search
   for it in objtree.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-01-29 01:51:30 +09:00
Michał Mirosław
1a7f0a34ea builddeb: allow selection of .deb compressor
Select deb compression using KDEB_COMPRESS make variable. This allows to
use gzip compression for local or test builds, and that's way faster
than now-default xz compression.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-01-22 00:56:48 +09:00
Michał Mirosław
9945722afd builddeb: make headers package thinner
Remove a bunch of files not used during external module builds:
 - foreign architecture headers
 - subtree Makefiles
 - Kconfig files
 - perl scripts

On amd64 system this looses a third of the resulting .deb size.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-01-14 10:42:44 +09:00
Cedric Hombourger
5a46421789 builddeb: generate multi-arch friendly linux-libc-dev package
Debian-based distributions place libc header files in a machine
specific directory (/usr/include/<libc-machine>) instead of
/usr/include/asm to support installation of the linux-libc-dev
package from multiple architectures. Move headers installed by
"make headers_install" accordingly using Debian's tuple from
dpkg-architecture (stored in debian/arch).

Signed-off-by: Cedric Hombourger <Cedric_Hombourger@mentor.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-07-17 10:25:10 +09:00
Masahiro Yamada
0315bb7a25 kbuild: deb-pkg: do not run headers_check
It is absolutely fine to add extra sanity checks in package scripts,
but it is not necessary to do so.

This is already covered by the daily compile-testing (0day bot etc.)
because headers_check is run as a part of the normal build process
when CONFIG_HEADERS_CHECK=y.

Replace it with the newly-added "make headers".

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-06-15 19:57:02 +09:00
Masahiro Yamada
6fb7ef5a34 kbuild: pkg: grep include/config/auto.conf instead of $KCONFIG_CONFIG
This will be a little more efficient since unset CONFIG options are
stripped away from auto.conf, and we can hard-code the path to auto.conf
since it is never overridden.

include/config/kernel.release is generated before %pkg is run.
So, it is guaranteed auto.conf is up-to-date.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-14 02:39:13 +09:00
Masahiro Yamada
515f4c633d kbuild: deb-pkg: introduce is_enabled and if_enabled_echo to builddeb
I think is_enabled() and if_enable_echo() in scripts/package/mkdebian
are useful.

builddeb also has many repetitive greps over the kernel config, so I
borrowed the idea to clean it up.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-14 02:39:12 +09:00
Masahiro Yamada
175209cce2 kbuild: pkg: use -f $(srctree)/Makefile to recurse to top Makefile
'$(MAKE) KBUILD_SRC=' changes the working directory back and forth
between objtree and srctree.

It is better to recurse to the top-level Makefile directly.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-02-20 09:42:46 +09:00
Rob Herring
d5615e472d builddeb: Fix inclusion of dtbs in debian package
Commit 37c8a5fafa ("kbuild: consolidate Devicetree dtb build rules")
moved the location of 'dtbs_install' target which caused dtbs to not be
installed when building debian package with 'bindeb-pkg' target. Update
the builddeb script to use the same logic that determines if there's a
'dtbs_install' target which is presence of the arch dts directory. Also,
use CONFIG_OF_EARLY_FLATTREE instead of CONFIG_OF as that's a better
indication of whether we are building dtbs.

This commit will also have the side effect of installing dtbs on any
arch that has dts files. Previously, it was dependent on whether the
arch defined 'dtbs_install'.

Fixes: 37c8a5fafa ("kbuild: consolidate Devicetree dtb build rules")
Reported-by: Nuno Gonçalves <nunojpg@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-11-11 23:04:53 +09:00