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2023-07-24kbuild: refactor kernel-devel RPM package and linux-headers Deb packageMasahiro Yamada1-28/+1
The kernel-devel RPM package and the linux-headers Debian package provide headers and scripts needed for building external modules. They copy the necessary files in slightly different ways - the RPM copies almost everything except some exclude patterns, while the Debian copies less number of files. There is no need to maintain different code to do the same thing. Split the Debian code out to scripts/package/install-extmod-build, which is called from both of the packages. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-06-27kbuild: deb-pkg: remove the CONFIG_MODULES check in buildebMasahiro Yamada1-8/+4
When CONFIG_MODULES is disabled for ARCH=um, 'make (bin)deb-pkg' fails with an error like follows: cp: cannot create regular file 'debian/linux-image/usr/lib/uml/modules/6.4.0-rc2+/System.map': No such file or directory Remove the CONFIG_MODULES check completely so ${pdir}/usr/lib/uml/modules will always be created and modules.builtin.(modinfo) will be installed under it for ARCH=um. Fixes: b611daae5efc ("kbuild: deb-pkg: split image and debug objects staging out into functions") Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-06-27kbuild: builddeb: always make modules_install, to install modules.builtin*Josh Triplett1-1/+1
Even for a non-modular kernel, the kernel builds modules.builtin and modules.builtin.modinfo, with information about the built-in modules. Tools such as initramfs-tools need these files to build a working initramfs on some systems, such as those requiring firmware. Now that `make modules_install` works even in non-modular kernels and installs these files, unconditionally invoke it when building a Debian package. Signed-off-by: Josh Triplett <josh@joshtriplett.org> Reviewed-by: Nicolas Schier <nicolas@fjasle.eu> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-04-17kbuild: builddeb: Eliminate debian/arch useBastian Germann1-1/+1
In the builddeb context, the DEB_HOST_ARCH environment variable is set to the same value as debian/arch's content, so use the variable with dpkg-architecture. This is the last use of the debian/arch file during dpkg-buildpackage time. Signed-off-by: Bastian Germann <bage@linutronix.de> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-03-22kbuild: deb-pkg: set version for linux-headers pathsKevin Locke1-1/+2
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: 36862e14e316 ("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>
2023-03-15kbuild: deb-pkg: use dh_listpackages to know enabled packagesMasahiro Yamada1-28/+33
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>
2023-03-15kbuild: deb-pkg: split image and debug objects staging out into functionsMasahiro Yamada1-106/+116
Prepare for the refactoring in the next commit. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-01-26builddeb: Consolidate consecutive chmod calls into oneSven Joachim1-5/+3
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>
2022-04-22objtool: Add CONFIG_OBJTOOLJosh Poimboeuf1-1/+1
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
2020-11-02builddeb: Fix rootless build in setuid/setgid directorySven Joachim1-0/+2
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: 3e8541803624 ("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>
2020-10-14kbuild: deb-pkg: do not build linux-headers package if CONFIG_MODULES=nMasahiro Yamada1-2/+4
Since commit 269a535ca931 ("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: 269a535ca931 ("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>
2020-10-09builddeb: Enable rootless buildsGuillem Jover1-2/+7
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>
2020-10-09builddeb: Pass -n to gzip for reproducible packagesGuillem Jover1-1/+1
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>
2020-09-24kbuild: preprocess module linker scriptMasahiro Yamada1-1/+1
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>
2020-01-28builddeb: split libc headers deployment out into a functionMasahiro Yamada1-14/+18
Deploy user-space headers (linux-libc-dev package) in a separate function for readability. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-01-28builddeb: split kernel headers deployment out into a functionMasahiro Yamada1-34/+42
Deploy kernel headers (linux-headers package) in a separate function for readability. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-01-28builddeb: remove redundant make for ARCH=umMasahiro Yamada1-2/+1
The kernel build has already been done before builddeb is invoked. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-01-28builddeb: avoid invoking sub-shells where possibleMasahiro Yamada1-13/+22
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>
2020-01-28builddeb: remove redundant $objtree/Masahiro Yamada1-16/+16
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>
2020-01-28builddeb: match temporary directory name to the package nameMasahiro Yamada1-4/+4
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>
2020-01-28builddeb: remove unneeded files in hdrobjfiles for headers packageMasahiro Yamada1-2/+2
- 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>
2020-01-21builddeb: allow selection of .deb compressorMichał Mirosław1-1/+1
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>
2020-01-14builddeb: make headers package thinnerMichał Mirosław1-2/+2
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>
2019-07-17builddeb: generate multi-arch friendly linux-libc-dev packageCedric Hombourger1-0/+5
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>
2019-06-15kbuild: deb-pkg: do not run headers_checkMasahiro Yamada1-1/+1
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>
2019-03-13kbuild: pkg: grep include/config/auto.conf instead of $KCONFIG_CONFIGMasahiro Yamada1-1/+1
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>
2019-03-13kbuild: deb-pkg: introduce is_enabled and if_enabled_echo to builddebMasahiro Yamada1-13/+19
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>
2019-02-20kbuild: pkg: use -f $(srctree)/Makefile to recurse to top MakefileMasahiro Yamada1-5/+5
'$(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>
2018-11-11builddeb: Fix inclusion of dtbs in debian packageRob Herring1-2/+2
Commit 37c8a5fafa3b ("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: 37c8a5fafa3b ("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>
2018-11-05kbuild: deb-pkg: fix bindeb-pkg breakage when O= is usedMasahiro Yamada1-1/+1
Ard Biesheuvel reports bindeb-pkg with O= option is broken in the following way: ... LD [M] sound/soc/rockchip/snd-soc-rk3399-gru-sound.ko LD [M] sound/soc/rockchip/snd-soc-rockchip-pcm.ko LD [M] sound/soc/rockchip/snd-soc-rockchip-rt5645.ko LD [M] sound/soc/rockchip/snd-soc-rockchip-spdif.ko LD [M] sound/soc/sh/rcar/snd-soc-rcar.ko fakeroot -u debian/rules binary make KERNELRELEASE=4.19.0-12677-g19beffaf7a99-dirty ARCH=arm64 KBUILD_SRC= intdeb-pkg /bin/bash /home/ard/linux/scripts/package/builddeb Makefile:600: include/config/auto.conf: No such file or directory *** *** Configuration file ".config" not found! *** *** Please run some configurator (e.g. "make oldconfig" or *** "make menuconfig" or "make xconfig"). *** make[12]: *** [syncconfig] Error 1 make[11]: *** [syncconfig] Error 2 make[10]: *** [include/config/auto.conf] Error 2 make[9]: *** [__sub-make] Error 2 ... Prior to commit 80463f1b7bf9 ("kbuild: add --include-dir flag only for out-of-tree build"), both srctree and objtree were added to --include-dir redundantly, and the wrong code '$MAKE image_name' was working by relying on that. Now, the potential issue that had previously been hidden just showed up. '$MAKE image_name' recurses to the generated $(objtree)/Makefile and ends up with running in srctree, which is incorrect. It should be invoked with '-f $srctree/Makefile' (or KBUILD_SRC=) to be executed in objtree. Fixes: 80463f1b7bf9 ("kbuild: add --include-dir flag only for out-of-tree build") Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2018-04-07kbuild: deb-pkg: split generating packaging and buildRiku Voipio1-220/+1
Move debian/ directory generation out of builddeb to a new script, mkdebian. The package build commands are kept in builddeb, which is now an internal command called from debian/rules. With these changes in place, we can now use dpkg-buildpackage from deb-pkg and bindeb-pkg removing need for handrolled source/changes generation. This patch is based on the criticism of the current state of builddeb discussed on: https://patchwork.kernel.org/patch/9656403/ Signed-off-by: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-03-27builddeb: Fix header package regarding dtc source linksJan Kiszka1-1/+1
Since d5d332d3f7e8, a couple of links in scripts/dtc/include-prefixes are additionally required in order to build device trees with the header package. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-11-14builddeb: Pass the kernel:debarch substvar to dpkg-genchangesSven Joachim1-2/+2
At the end of "make bindeb-pkg" I noticed the following warning: dpkg-genchanges: warning: unknown substitution variable ${kernel:debarch} It turns out that since dpkg version 1.19.0 dpkg-genchanges honors substitution variables in the Description field, while earlier versions silently left them alone, see https://bugs.debian.org/856547. The result is an incomplete description of the linux-headers package in the generated .changes file. Fix it by passing the kernel:debarch substitution variable to dpkg-genchanges. Signed-off-by: Sven Joachim <svenjoac@gmx.de> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-09-20kbuild: deb-pkg: remove firmware package supportMasahiro Yamada1-21/+1
Commit 5620a0d1aacd ("firmware: delete in-kernel firmware") deleted in-kernel firmware support, including the firmware install command. So, the firmware package does not make sense any more. Remove it. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Riku Voipio <riku.voipio@linaro.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-11Merge tag 'kbuild-misc-v4.12' of ↵Linus Torvalds1-13/+3
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull misc Kbuild updates from Masahiro Yamada: - clean up builddeb script - use full path for KBUILD_IMAGE to fix rpm-pkg build - fix objdiff tool to ignore debug info * tag 'kbuild-misc-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: builddeb: fix typo builddeb: Update a few outdated and hardcoded strings deb-pkg: Remove the KBUILD_IMAGE workaround unicore32: Use full path in KBUILD_IMAGE definition sh: Use full path in KBUILD_IMAGE definition arc: Use full path in KBUILD_IMAGE definition arm: Use full path in KBUILD_IMAGE definition arm64: Use full path in KBUILD_IMAGE definition scripts: objdiff: Ignore debug info when comparing
2017-04-25builddeb: fix typoAndrew Donnellan1-1/+1
Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-04-25builddeb: Update a few outdated and hardcoded stringsRiku Voipio1-6/+1
The builddeb script has some hardcoded references to Linux version 2.6 which is ancient. Drop Provides as the virtual packages provided are not useful anymore. Leave the Provides for linux-kernel-headers, as someone might still be referring to it. While at it, updated copyright date and drop Standards-Version: since the package isn't Debian Standards compliant anyways. Cc: Timo Sigurdsson <public_timo.s@silentcreek.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-03-28Fix dead URLs to ftp.kernel.orgSeongJae Park1-2/+2
URLs to ftp.kernel.org are still exist though the service is closed [0]. This commit fixes the URLs to use www.kernel.org instead. [0] https://www.kernel.org/shutting-down-ftp-services.html Signed-off-by: SeongJae Park <sj38.park@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-03-20deb-pkg: Remove the KBUILD_IMAGE workaroundMichal Marek1-6/+1
The arch Makefile are fixed to set KBUILD_IMAGE to the full patch, so the workaround is no longer needed. Signed-off-by: Michal Marek <mmarek@suse.com> Reviewed-by: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-11-25builddeb: fix cross-building to arm64 producing host-arch debsAdam Borowski1-1/+1
Both Debian and kernel archs are "arm64" but UTS_MACHINE and gcc say "aarch64". Recognizing just the latter should be enough but let's accept both in case something regresses again or an user sets UTS_MACHINE=arm64. Regressed in cfa88c7: arm64: Set UTS_MACHINE in the Makefile. Signed-off-by: Adam Borowski <kilobyte@angband.pl> Acked-by: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Michal Marek <mmarek@suse.com>
2016-08-16builddeb: Skip gcc-plugins when not configuredKees Cook1-1/+3
When attempting to build a Debian kernel package, the "scripts/gcc-plugins" directory does not exist in the output tree unless CONFIG_GCC_PLUGINS=y. To avoid errors when not defined, this wraps the failing "find" in a config test. Reported-by: Frank Paulsen <frobnic+lkml@gmail.com> Tested-by: Christian Kujau <lists@nerdbynature.de> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Michal Marek <mmarek@suse.com>
2016-08-02Merge branch 'misc' of ↵Linus Torvalds1-4/+7
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull misc kbuild updates from Michal Marek: - coccicheck script improvements by Luis Rodriguez and Deepa Dinamani - new coccinelle patches by Yann Droneaud and Vaishali Thakkar - debian packaging fixes by Wilfried Klaebe, Henning Schild and Marcin Mielniczuk * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: Fix the Debian packaging script on systems with no codename builddeb: fix file permissions before packaging scripts/coccinelle: require coccinelle >= 1.0.4 on device_node_continue.cocci coccicheck: refer to Documentation/coccinelle.txt and wiki coccicheck: add support for requring a coccinelle version scripts: add Linux .cocciconfig for coccinelle coccicheck: replace --very-quiet with --quiet when debugging coccicheck: add support for DEBUG_FILE coccicheck: enable parmap support coccicheck: make SPFLAGS more useful coccicheck: move spatch binary check up builddeb: really include objtool binary in headers package coccinelle: catch krealloc() on devm_*() allocated memory coccinelle: recognize more devm_* memory allocation functions coccinelle: also catch kzfree() issues coccicheck: Allow for overriding spatch flags Coccinelle: noderef: Add new rules and correct the old rule
2016-07-27Fix the Debian packaging script on systems with no codenameMarcin Mielniczuk1-1/+2
When calling `make deb-pkg` on a system with no codename (for example Arch Linux), lsb_release sometimes outputs `n/a` as the codename. This breaks dpkg-parsechangelog, which can't process the changelog correctly. Signed-off-by: Marcin Mielniczuk <marmistrz.dev@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.com>
2016-07-26builddeb: fix file permissions before packagingHenning Schild1-0/+2
Builddep is not very explicit about file permissions. Actually the file permissions in the package are largely influenced by the umask of the user cloning the git and building the package. If that umask does not set go+r the resulting linux-headers package will prevent non-root users from building out-of-tree modules. And that is probably just one unexpected effect. Being a packaging/install tool builddep should make sure the file permissions are set correctly and not just derived from a value that is never checked. This patch sets ugo read permissions for all packaged files and derives the executable bit for directories and executables from the file-owner. Signed-off-by: Henning Schild <henning.schild@siemens.com> Signed-off-by: Michal Marek <mmarek@suse.com>
2016-07-19builddeb: really include objtool binary in headers packageWilfried Klaebe1-3/+3
On May 4th, Bjørn Mork provided patch 697bbc7b8320 ("builddeb: include objtool binary in headers package"). However, that one only works if $srctree=$objtree, because the objtool binaries are not written to the srctree, but to the objtree. Signed-off-by: Wilfried Klaebe <linux-kernel@lebenslange-mailadresse.de> Fixes: 697bbc7b8320 ("builddeb: include objtool binary in headers package") Signed-off-by: Michal Marek <mmarek@suse.com>
2016-06-07GCC plugin infrastructureEmese Revfy1-0/+1
This patch allows to build the whole kernel with GCC plugins. It was ported from grsecurity/PaX. The infrastructure supports building out-of-tree modules and building in a separate directory. Cross-compilation is supported too. Currently the x86, arm, arm64 and uml architectures enable plugins. The directory of the gcc plugins is scripts/gcc-plugins. You can use a file or a directory there. The plugins compile with these options: * -fno-rtti: gcc is compiled with this option so the plugins must use it too * -fno-exceptions: this is inherited from gcc too * -fasynchronous-unwind-tables: this is inherited from gcc too * -ggdb: it is useful for debugging a plugin (better backtrace on internal errors) * -Wno-narrowing: to suppress warnings from gcc headers (ipa-utils.h) * -Wno-unused-variable: to suppress warnings from gcc headers (gcc_version variable, plugin-version.h) The infrastructure introduces a new Makefile target called gcc-plugins. It supports all gcc versions from 4.5 to 6.0. The scripts/gcc-plugin.sh script chooses the proper host compiler (gcc-4.7 can be built by either gcc or g++). This script also checks the availability of the included headers in scripts/gcc-plugins/gcc-common.h. The gcc-common.h header contains frequently included headers for GCC plugins and it has a compatibility layer for the supported gcc versions. The gcc-generate-*-pass.h headers automatically generate the registration structures for GIMPLE, SIMPLE_IPA, IPA and RTL passes. Note that 'make clean' keeps the *.so files (only the distclean or mrproper targets clean all) because they are needed for out-of-tree modules. Based on work created by the PaX Team. Signed-off-by: Emese Revfy <re.emese@gmail.com> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Michal Marek <mmarek@suse.com>
2016-05-10builddeb: fix missing headers in linux-headers packageAzriel Samson1-1/+1
The kernel headers package (linux-headers) doesn't include header files from other architectures required to build out-of-tree modules. For e.g. on ARM64, opcodes.h includes the same file from ARM which causes the following error: ./arch/arm64/include/asm/opcodes.h:1:43: fatal error: ../../arm/include/asm/opcodes.h: No such file or directory compilation terminated. Signed-off-by: Azriel Samson <asamson@codeaurora.org> Signed-off-by: Michal Marek <mmarek@suse.com>
2016-05-10builddeb: include objtool binary in headers packageBjørn Mork1-0/+3
"objtool" is required for building external m dules if "Compile-time stack metadata validation" is enabled. Otherwise all builds based on the headers package fail with: make[1]: Entering directory '/usr/src/linux-headers-4.6.0-rc6' make[2]: *** No rule to make target 'tools/objtool/objtool', needed by 'foo.o'. Stop. Makefile:1598: recipe for target 'foo.ko' failed make[1]: *** [foo.ko] Error 2 make[1]: Leaving directory '/usr/src/linux-headers-4.6.0-rc6' Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: Michal Marek <mmarek@suse.com>
2015-11-11Merge branch 'misc' of ↵Linus Torvalds1-1/+10
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull misc kbuild updates from Michal Marek: "This is the non-critical part of kbuild: - several coccinelle updates - make deb-pkg creates an armhf package if CONFIG_VFP=y - make tags understands some more powerpc macros" * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: coccinelle: Improve checking for missing NULL terminators coccinelle: ifnullfree: handle various destroy functions coccinelle: ifnullfree: various cleanups cocinelle: iterators: semantic patch to delete unneeded of_node_put deb-pkg: Add automatic support for armhf architecture scripts/coccinelle: fix typos coccinelle: misc: remove "complex return code" warnings Coccinelle: fix incorrect -include option transformation coccinelle: tests: improve odd_ptr_err.cocci coccinelle: misc: move constants to the right scripts/tags.sh: Teach tags about some powerpc macros
2015-10-27deb-pkg: Add automatic support for armhf architectureBen Hutchings1-1/+10
The Debian armhf architecture uses the ARM EABI hard-float variant, whereas armel uses the soft-float variant. Although the kernel doesn't use FP itself, CONFIG_VFP must be enabled to support hard-float userland and will probably be disabled when supporting a soft-float userland. So set the architecture to armhf by default when CONFIG_AEABI and CONFIG_VFP are both enabled. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Acked-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: Fathi Boudra <fathi.boudra@linaro.org> Reviewed-by: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
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