linux-toradex.git/scripts/package/builddeb, branch v4.11-rc1

builddeb: fix cross-building to arm64 producing host-arch debs

2016-11-25T14:39:03+00:00

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 
Acked-by: Riku Voipio 
Signed-off-by: Michal Marek

builddeb: Skip gcc-plugins when not configured

2016-08-16T08:16:38+00:00

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 
Tested-by: Christian Kujau 
Signed-off-by: Kees Cook 
Signed-off-by: Michal Marek

Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

2016-08-02T20:48:52+00:00

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

Fix the Debian packaging script on systems with no codename

2016-07-26T21:12:08+00:00

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 
Signed-off-by: Michal Marek

builddeb: fix file permissions before packaging

2016-07-26T20:26:46+00:00

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 
Signed-off-by: Michal Marek

builddeb: really include objtool binary in headers package

2016-07-19T09:19:27+00:00

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 
Fixes: 697bbc7b8320 ("builddeb: include objtool binary in headers package")
Signed-off-by: Michal Marek

GCC plugin infrastructure

2016-06-07T20:57:10+00:00

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
Acked-by: Kees Cook
Signed-off-by: Michal Marek

builddeb: fix missing headers in linux-headers package

2016-05-10T15:44:53+00:00

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 
Signed-off-by: Michal Marek

builddeb: include objtool binary in headers package

2016-05-10T15:41:01+00:00

"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 
Signed-off-by: Michal Marek

Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

2015-11-11T05:11:58+00:00

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