Commit Graph

52 Commits

Author SHA1 Message Date
Masahiro Yamada
5e73758b43 kbuild: deb-pkg: use more debhelper commands in builddeb
Commit 36862e14e3 ("kbuild: deb-pkg: use dh_listpackages to know
enabled packages") started to require the debhelper tool suite.

Use more dh_* commands in create_package():

 - dh_installdocs to install copyright
 - dh_installchangelogs to install changelog
 - dh_compress to compress changelog
 - dh_fixperms to replace the raw chmod command
 - dh_gencontrol to replace the raw dpkg-gencontrol command
 - dh_md5sums to record the md5sum of included files
 - dh_builddeb to replace the raw dpkg-deb command

Set DEB_RULES_REQUIRES_ROOT to 'no' in case debian/rules is executed
directly.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <n.schier@avm.de>
2024-01-05 19:35:38 +09:00
Masahiro Yamada
b88365b6d7 kbuild: deb-pkg: hard-code Build-Depends
The condition to require libelf-dev:native is stale because objtool is
now enabled by CONFIG_OBJTOOL instead of CONFIG_UNWINDER_ORC. Not only
objtool but also resolve_btfids requires libelf-dev:native; therefore,
CONFIG_DEBUG_INFO_BTF should be checked as well.

Similarly, CONFIG_SYSTEM_TRUSTED_KEYRING is not the only case that
requires libssl-dev:native.

Perhaps, the following code would provide better coverage, but it is
hard to maintain (and may still be imperfect).

  if is_enabled CONFIG_OBJTOOL ||
     is_enabled CONFIG_DEBUG_INFO_BTF; then
          build_depends="${build_depends}, libelf-dev:native"
  fi

  if is_enabled CONFIG_SYSTEM_TRUSTED_KEYRING ||
     is_enabled CONFIG_SYSTEM_REVOCATION_LIST ||
     is_enabled CONFIG_MODULE_SIG_FORMAT; then
          build_depends="${build_depends}, libssl-dev:native"
  fi

Let's hard-code the build dependency.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <n.schier@avm.de>
2023-12-29 22:25:21 +09:00
Masahiro Yamada
9c65810cfb kbuild: deb-pkg: split debian/copyright from the mkdebian script
Copy debian/copyright instead of generating it by the 'cat' command.

I also updated '2018' to '2023' while I was here.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <n.schier@avm.de>
2023-12-29 22:25:21 +09:00
Masahiro Yamada
0df8e97085 scripts: clean up IA-64 code
A little more janitorial work after commit cf8e865810 ("arch: Remove
Itanium (IA-64) architecture").

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2023-12-03 18:51:48 +09:00
Masahiro Yamada
d9287ea8ff kbuild: deb-pkg: split debian/rules
debian/rules is generated by shell, but the escape sequence (\$) is
unreadable.

debian/rules embeds only two variables (ARCH and KERNELRELEASE).

Split them out to debian/rules.vars, and check-in the rest of Makefile
code to scripts/package/debian/rules.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2023-08-08 01:08:54 +09:00
Masahiro Yamada
4b970e4365 kbuild: deb-pkg: use Debian compliant shebang for debian/rules
Debian Policy "4.9. Main building script: debian/rules" requires
"debian/rules must start with the line #!/usr/bin/make -f". [1]

Currently, Kbuild does not follow this policy.

When Kbuild generates debian/rules, "#!$(command -v $MAKE) -f" is
expanded by shell. The resuling string may not be "#!/usr/bin/make -f".

There was a reason to opt out the Debian policy.

If you run '/path/to/my/custom/make deb-pkg', debian/rules must also be
invoked by the same Make program. If #!/usr/bin/make were hard-coded in
debian/rules, the sub-make would be executed by a possibly different
Make version.

This is problematic due to the MAKEFLAGS incompatibility, especially the
job server flag. Old Make versions used --jobserver-fds to propagate job
server file descriptors, but Make >= 4.2 uses --jobserver-auth. The flag
disagreement between the parent/child Makes would result in a process
fork explosion.

However, having a non-standard path in the shebang causes another issue;
the generated source package is not portable as such a path does not
exist in other build environments.

This commit solves those conflicting demands.

Hard-code '#!/usr/bin/make -f' in debian/rules to create a portable and
Debian-compliant source package.

Pass '--rules-file=$(MAKE) -f debian/rules' when dpkg-buildpackage is
invoked from Makefile so that debian/rules is executed by the same Make
program as used to start Kbuild.

[1] https://www.debian.org/doc/debian-policy/ch-source.html#main-building-script-debian-rules

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2023-08-08 01:08:54 +09:00
Masahiro Yamada
76a48b8ffb kbuild: add a phony target to run a command with Kbuild env vars
There are some cases where we want to run a command with the same
environment variables as Kbuild uses. For example, 'make coccicheck'
invokes scripts/coccicheck from the top Makefile so that the script can
reference to ${LINUXINCLUDE}, ${KBUILD_EXTMOD}, etc. The top Makefile
defines several phony targets that run a script.

We do it also for an internally used script, which results in a somewhat
complex call graph.

One example:

 debian/rules binary-arch
   -> make intdeb-pkg
      -> scripts/package/builddeb

It is also tedious to add a dedicated target like 'intdeb-pkg' for each
use case.

Add a generic target 'run-command' to run an arbitrary command in an
environment with all Kbuild variables set.

The usage is:

  $ make run-command KBUILD_RUN_COMMAND=<command>

The concept is similar to:

  $ dpkg-architecture -c <command>

This executes <command> in an environment which has all DEB_* variables
defined.

Convert the existing 'make intdeb-pkg'.

Another possible usage is to interrogate a Make variable.

  $ make run-command KBUILD_RUN_COMMAND='echo $(KBUILD_CFLAGS)'

might be useful to see KBUILD_CFLAGS set by the top Makefile.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-07-25 00:59:32 +09:00
Linus Torvalds
d55571c008 Kbuild updates for v6.4
- Refactor scripts/kallsyms to make it faster and easier to maintain
 
  - Clean up menuconfig
 
  - Provide Clang with hard-coded target triple instead of CROSS_COMPILE
 
  - Use -z pack-relative-relocs flags instead of --use-android-relr-tags
    for arm64 CONFIG_RELR
 
  - Add srcdeb-pkg target to build only a Debian source package
 
  - Add KDEB_SOURCE_COMPRESS option to specify the compression for a
    Debian source package
 
  - Misc cleanups and fixes
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Merge tag 'kbuild-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - Refactor scripts/kallsyms to make it faster and easier to maintain

 - Clean up menuconfig

 - Provide Clang with hard-coded target triple instead of CROSS_COMPILE

 - Use -z pack-relative-relocs flags instead of --use-android-relr-tags
   for arm64 CONFIG_RELR

 - Add srcdeb-pkg target to build only a Debian source package

 - Add KDEB_SOURCE_COMPRESS option to specify the compression for a
   Debian source package

 - Misc cleanups and fixes

* tag 'kbuild-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: deb-pkg: specify targets in debian/rules as .PHONY
  sparc: unify sparc32/sparc64 archhelp
  kbuild: rpm-pkg: remove kernel-drm PROVIDES
  kbuild: deb-pkg: add KDEB_SOURCE_COMPRESS to specify source compression
  kbuild: add srcdeb-pkg target
  Makefile: use -z pack-relative-relocs
  kbuild: clang: do not use CROSS_COMPILE for target triple
  kconfig: menuconfig: reorder functions to remove forward declarations
  kconfig: menuconfig: remove unused M_EVENT macro
  kconfig: menuconfig: remove OLD_NCURSES macro
  kbuild: builddeb: Eliminate debian/arch use
  scripts/kallsyms: update the usage in the comment block
  scripts/kallsyms: decrease expand_symbol() / cleanup_symbol_name() calls
  scripts/kallsyms: change the output order
  scripts/kallsyms: move compiler-generated symbol patterns to mksysmap
  scripts/kallsyms: exclude symbols generated by itself dynamically
  scripts/mksysmap: use sed with in-line comments
  scripts/mksysmap: remove comments described in nm(1)
  scripts/kallsyms: remove redundant code for omitting U and N
  kallsyms: expand symbol name into comment for debugging
2023-04-30 11:32:53 -07:00
Masahiro Yamada
9892bd72ef kbuild: deb-pkg: specify targets in debian/rules as .PHONY
If a file with the same name exists, the target is not run.

For example, the following command fails.

  $ make O=build-arch bindeb-pkg
    [ snip ]
  sed: can't read modules.order: No such file or directory
  make[6]: *** [../Makefile:1577: __modinst_pre] Error 2
  make[5]: *** [../scripts/Makefile.package:150: intdeb-pkg] Error 2
  make[4]: *** [../Makefile:1657: intdeb-pkg] Error 2
  make[3]: *** [debian/rules:14: binary-arch] Error 2
  dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
  make[2]: *** [../scripts/Makefile.package:139: bindeb-pkg] Error 2

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
2023-04-26 21:10:51 +09:00
Woody Suwalski
8b824220bd kbuild: deb-pkg: Fix a spell typo in mkdebian script
Signed-off-by: Woody Suwalski <terraluna977@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-04-23 21:23:10 +09:00
Masahiro Yamada
aa7d233f45 kbuild: give up untracked files for source package builds
When the source tree is dirty and contains untracked files, package
builds may fail, for example, when a broken symlink exists, a file
path contains whitespaces, etc.

Since commit 05e96e96a3 ("kbuild: use git-archive for source package
creation"), the source tarball only contains committed files because
it is created by 'git archive'. scripts/package/gen-diff-patch tries
to address the diff from HEAD, but including untracked files by the
hand-crafted script introduces more complexity. I wrote a patch [1] to
make it work in most cases, but still wonder if this is what we should
aim for.

To simplify the code, this patch just gives up untracked files. Going
forward, it is your responsibility to do 'git add' for what you want in
the source package. The script shows a warning just in case you forgot
to do so. It should be checked only when building source packages.

[1]: https://lore.kernel.org/all/CAK7LNAShbZ56gSh9PrbLnBDYKnjtTkHMoCXeGrhcxMvqXGq9=g@mail.gmail.com/2-0001-kbuild-make-package-builds-more-robust.patch

Fixes: 05e96e96a3 ("kbuild: use git-archive for source package creation")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2023-04-11 08:58:45 +09:00
Masahiro Yamada
05e96e96a3 kbuild: use git-archive for source package creation
Commit 5c3d1d0abb ("kbuild: add a tool to list files ignored by git")
added a new tool, scripts/list-gitignored. My intention was to create
source packages without cleaning the source tree, without relying on git.

Linus strongly objected to it, and suggested using 'git archive' instead.
[1] [2] [3]

This commit goes in that direction - Remove scripts/list-gitignored.c
and rewrites Makefiles and scripts to use 'git archive' for building
Debian and RPM source packages. It also makes 'make perf-tar*-src-pkg'
use 'git archive' again.

Going forward, building source packages is only possible in a git-managed
tree. Building binary packages does not require git.

[1]: https://lore.kernel.org/lkml/CAHk-=wi49sMaC7vY1yMagk7eqLK=1jHeHQ=yZ_k45P=xBccnmA@mail.gmail.com/
[2]: https://lore.kernel.org/lkml/CAHk-=wh5AixGsLeT0qH2oZHKq0FLUTbyTw4qY921L=PwYgoGVw@mail.gmail.com/
[3]: https://lore.kernel.org/lkml/CAHk-=wgM-W6Fu==EoAVCabxyX8eYBz9kNC88-tm9ExRQwA79UQ@mail.gmail.com/

Fixes: 5c3d1d0abb ("kbuild: add a tool to list files ignored by git")
Fixes: e0ca16749a ("kbuild: make perf-tar*-src-pkg work without relying on git")
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-03-16 22:46:12 +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
7a531c21f8 kbuild: deb-pkg: do not take KERNELRELEASE from the source version
KERNELRELEASE does not need to match the package version in changelog.
Rather, it conventially matches what is called 'ABINAME', which is a
part of the binary package names.

Both are the same by default, but the former might be overridden by
KDEB_PKGVERSION. In this case, the resulting package would not boot
because /lib/modules/$(uname -r) does not point the module directory.

Partially revert 3ab18a625c ("kbuild: deb-pkg: improve the usability
of source package").

Reported-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Fixes: 3ab18a625c ("kbuild: deb-pkg: improve the usability of source package")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
2023-03-15 15:15:07 +09:00
Masahiro Yamada
2fd6c4553c kbuild: deb-pkg: make debian source package working again
Since commit c5bf2efb05 ("kbuild: deb-pkg: fix binary-arch and clean
in debian/rules"), the source package generated by 'make deb-pkg' fails
to build.

I terribly missed the fact that the intdeb-pkg target may regenerate
include/config/kernel.release due to the following in the top Makefile:

  %pkg: include/config/kernel.release FORCE

Restore KERNELRELEASE= option to avoid the kernel.release disagreement
between build-arch and binary-arch.

Fixes: c5bf2efb05 ("kbuild: deb-pkg: fix binary-arch and clean in debian/rules")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-03-15 15:15:07 +09:00
Masahiro Yamada
3ab18a625c kbuild: deb-pkg: improve the usability of source package
Improve the source package support in case the dpkg-buildpackage is
directly used to build binary packages.

For cross-compiling, you can set CROSS_COMPILE via the environment
variable, but it is better to set it automatically - set it to
${DEB_HOST_GNU_TYPE}- if we are cross-compiling but not from the top
Makefile.

The generated source package may be carried to a different build
environment, which may have a different compiler installed.
Run olddefconfig first to set new CONFIG options to their default
values without prompting.

Take KERNELRELEASE and KBUILD_BUILD_VERSION from the version field of
debian/changelog in case it is updated afterwards.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-02-26 15:23:30 +09:00
Masahiro Yamada
c5bf2efb05 kbuild: deb-pkg: fix binary-arch and clean in debian/rules
The clean target needs ARCH=${ARCH} to clean up the tree for the correct
architecture. 'make (bin)deb-pkg' skips cleaning, but the preclean hook
may be executed if dpkg-buildpackage is directly used.

The binary-arch target does not need KERNELRELEASE because it is not
updated during the installation. KBUILD_BUILD_VERSION is not needed
either because binary-arch does not build vmlinux.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-02-26 15:23:30 +09:00
Masahiro Yamada
e785399559 kbuild: deb-pkg: switch over to source format 3.0 (quilt)
Change the source format from "1.0" to "3.0 (quilt)" because it works
more cleanly.

All files except .config and debian/ go into the orig tarball.
Add a single patch, debian/patches/config, and delete the ugly
extend-diff-ignore patterns.

The debian tarball will be compressed into *.debian.tar.xz by default.
If you like to use a different compression mode, you can pass the
command line option, DPKG_FLAGS=-Zgzip, for example.

The orig tarball only supports gzip for now. The combination of
gzip and xz is somewhat clumsy, but it is not a practical problem.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2023-02-26 15:22:37 +09:00
Masahiro Yamada
6eabebb1b6 kbuild: deb-pkg: hide KDEB_SOURCENAME from Makefile
scripts/Makefile.package does not need to know the value of
KDEB_SOURCENAME because the source name can be taken from
debian/changelog by using dpkg-parsechangelog.

Move the default of KDEB_SOURCENAME (i.e. linux-upstream) to
scripts/package/mkdebian.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2023-02-26 15:19:38 +09:00
Masahiro Yamada
7bf4582d7a kbuild: deb-pkg: create source package without cleaning
If you run 'make deb-pkg', all objects are lost due to 'make clean',
which makes the incremental builds impossible.

Instead of cleaning, pass the exclude list to tar's --exclude-from
option.

Previously, *.diff.gz contained some check-in files such as
.clang-format, .cocciconfig.

With this commit, *.diff.gz will only contain the .config and debian/.
The other source files will go into the .orig tarball.

linux.tar.gz is rebuilt only when the source files that would go into
the tarball are changed.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2023-02-26 15:18:07 +09:00
Bastian Germann
c9f9cf2560 builddeb: clean generated package content
For each binary Debian package, a directory with the package name is
created in the debian directory. Correct the generated file matches in the
package's clean target, which were renamed without adjusting the target.

Fixes: 1694e94e4f ("builddeb: match temporary directory name to the package name")
Signed-off-by: Bastian Germann <bage@linutronix.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-01-26 12:43:33 +09:00
Masahiro Yamada
5724ac5589 kbuild: deb-pkg: get rid of |flex:native workaround from Build-Depends
"| flex:native" was a workaround (suggested by Ben, see Link) because
"MultiArch: foreign" was missing in the flex package on some old distros
when commit e3a2285066 ("deb-pkg: generate correct build dependencies")
was applied.

It seems fixing the flex package has been completed. Get rid of the
workaround.

Link: https://lore.kernel.org/linux-kbuild/ab49b0582ef12b14b1a68877263b81813e2492a2.camel@decadent.org.uk/
Link: https://wiki.debian.org/CrossBuildPackagingGuidelines
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Ben Hutchings <ben@decadent.org.uk>
2022-11-21 10:18:39 +09:00
Marc Zyngier
5db8face97 kbuild: Restore .version auto-increment behaviour for Debian packages
Since 2df8220cc5 ("kbuild: build init/built-in.a just once"),
generating Debian packages using 'make bindeb-pkg' results in
packages that are stuck to the same .version, leading to unexpected
behaviours (multiple packages with the same version).

That's because the mkdebian script samples the build version
before building the kernel, and forces the use of that version
number for the actual build.

Restore the previous behaviour by calling init/build-version
instead of reading the .version file. This is likely to result
in too many .version bumps, but this is what was happening before
(although the bump was affecting builds made after the current one).

Fixes: 2df8220cc5 ("kbuild: build init/built-in.a just once")
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-11-17 17:51:45 +09:00
Masahiro Yamada
0fa21cf448 kbuild: deb-pkg: clean up package name variables
Hard-code the names of linux-headers and debug packages in the
control file.

The kernel package is different for ARCH=um. Change the code
for better readability.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-10-14 12:49:39 +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
76c3766876 builddeb: Add support for all required debian/rules targets
These have been required by the Debian policy for a while, even though
the tooling can detect and workaround their omission, but are a hard
requirement when using rootless builds.

[masahiro:
The following Debian policy is particularly important for rootless builds:
"Both binary-* targets should depend on the build target, or on the
 appropriate build-arch or build-indep target, so that the package is
 built if it has not been already."
]

Signed-off-by: Guillem Jover <guillem@hadrons.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-10-10 00:41:35 +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
Alexander A. Klimov
16a122c743 kbuild: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-08-10 01:32:59 +09:00
Reinhard Karcher
d9dac147a2 kbuild: deb-pkg: fix warning when CONFIG_DEBUG_INFO is unset
Creating a Debian package without CONFIG_DEBUG_INFO produces
a warning that no debug package was created.

This patch excludes the debug package from the control file,
if no debug package is created by this configuration.

Signed-off-by: Reinhard Karcher <reinhard.karcher@gmx.net>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-03-30 09:23:00 +09:00
Ard Biesheuvel
8ffdc54b6f kbuild/deb-pkg: annotate libelf-dev dependency as :native
Cross compiling the x86 kernel on a non-x86 build machine produces
the following error when CONFIG_UNWINDER_ORC is enabled, regardless
of whether libelf-dev is installed or not.

  dpkg-checkbuilddeps: error: Unmet build dependencies: libelf-dev
  dpkg-buildpackage: warning: build dependencies/conflicts unsatisfied; aborting
  dpkg-buildpackage: warning: (Use -d flag to override.)

Since this is a build time dependency for a build tool, we need to
depend on the native version of libelf-dev so add the appropriate
annotation.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-01-04 00:00:48 +09:00
Enrico Weigelt, metux IT consult
a11391b6f5 scripts: package: mkdebian: add missing rsync dependency
We've missed the dependency to rsync, so build fails on
minimal containers.

Fixes: 59b2bd05f5 ("kbuild: add 'headers' target to build up uapi headers in usr/include")
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2019-12-17 19:23:10 +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
Arseny Maslennikov
f6d9db6355 kbuild: deb-pkg: avoid implicit effects
* The man page for dpkg-source(1) notes:

>      -b, --build directory [format-specific-parameters]
>             Build  a  source  package  (--build since dpkg 1.17.14).
>             <...>
>
>             dpkg-source will build the source package with the first
>             format found in this ordered list: the format  indicated
>             with  the  --format  command  line  option,  the  format
>             indicated in debian/source/format, “1.0”.  The  fallback
>             to “1.0” is deprecated and will be removed at some point
>             in the future, you should always  document  the  desired
>             source   format  in  debian/source/format.  See  section
>             SOURCE PACKAGE FORMATS for an extensive  description  of
>             the various source package formats.

  Thus it would be more foolproof to explicitly use 1.0 (as we always
  did) than to rely on dpkg-source's defaults.

* In a similar vein, debian/rules is not made executable by mkdebian,
  and dpkg-source warns about that but still silently fixes the file.
  Let's be explicit once again.

Signed-off-by: Arseny Maslennikov <ar@cs.msu.ru>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-17 12:56:23 +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
7e548e9a54 kbuild: deb-pkg: add CONFIG_ prefix to kernel config options
This might be a kind of bike-shed, but I personally prefer grep'able
code.

I often do 'git grep CONFIG_FOO' instead of 'git grep FOO' when I
want to know where that CONFIG option is used.

This makes code longer, but I hope this is acceptable level.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-14 02:39:12 +09:00
Riku Voipio
e3a2285066 deb-pkg: generate correct build dependencies
bison/flex is now needed always for building for kconfig. Some build
dependencies depend on kernel configuration, enable them as needed:

- libelf-dev when UNWINDER_ORC is set
- libssl-dev for SYSTEM_TRUSTED_KEYRING

Since the libssl-dev is needed for extract_cert binary, denote with
:native to install the libssl-dev for the build machines architecture,
rather than for the architecture of the kernel being built.

Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Reviewed-by: Ben Hutchings <ben@decadent.org.uk>
Acked-by: maximilian attems <maks@stro.at>
[masahiro.yamada: change 'flex' to 'flex | flex:native' ]
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-14 02:30:26 +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
Masahiro Yamada
bbcde0a724 kbuild: deb-pkg: fix too low build version number
Since commit b41d920acf ("kbuild: deb-pkg: split generating packaging
and build"), the build version of the kernel contained in a deb package
is too low by 1.

Prior to the bad commit, the kernel was built first, then the number
in .version file was read out, and written into the debian control file.

Now, the debian control file is created before the kernel is actually
compiled, which is causing the version number mismatch.

Let the mkdebian script pass KBUILD_BUILD_VERSION=${revision} to require
the build system to use the specified version number.

Fixes: b41d920acf ("kbuild: deb-pkg: split generating packaging and build")
Reported-by: Doug Smythies <dsmythies@telus.net>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Doug Smythies <dsmythies@telus.net>
2018-11-11 23:04:52 +09:00
Ben Hutchings
79a85b55e3 builddeb: Add automatic support for sh{3,4}{,eb} architectures
Different generations of the SH architecture are not very compatible,
so there are/were separate Debian ports for SH3 and SH4.

Move the fallback out of the "case" statement, so that it will also be
used in case we find some SH architecture version without a known
mapping.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-28 10:53:44 +09:00
Ben Hutchings
75ebcee769 builddeb: Add automatic support for riscv* architectures
Debian currently only defines "riscv64", but it seems safe to assume
that any 32-bit port will now be called "riscv32", also matching
$UTS_MACHINE.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-28 10:53:44 +09:00
Ben Hutchings
60ca40a064 builddeb: Add automatic support for m68k architecture
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-28 10:53:44 +09:00
Ben Hutchings
822f44fb5b builddeb: Add automatic support for or1k architecture
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-28 10:53:44 +09:00
Ben Hutchings
a27ae285d5 builddeb: Add automatic support for sparc64 architecture
We currently label 64-bit kernel packages as sparc (32-bit), mostly
because it was officially supported while sparc64 was not.  Now
neither is officially supported, so label these packages as sparc64.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-28 10:53:44 +09:00
Ben Hutchings
679caaf3f7 builddeb: Add automatic support for mips{,64}r6{,el} architectures
MIPS R6 is not fully backward-compatible, so Debian has separate
architecture names for userland built for R6.  Label kernel
packages accordingly.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-28 10:53:44 +09:00
Ben Hutchings
159b379422 builddeb: Add automatic support for mips64el architecture
We currently label 64-bit little-endian kernel packages as
mipsel (32-bit little-endian), mostly it was officially supported
while mips64el (64-bit little-endian) was not.  Now both are
officially supported, so label these packages as mips64el.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-28 10:53:44 +09:00
Ben Hutchings
50d511ba62 builddeb: Add automatic support for ppc64 and powerpcspe architectures
We currently label 64-bit big-endian kernel packages as
powerpc (32-bit), mostly because it was officially supported while
ppc64 (64-bit big-endian) was not.  Now neither is officially
supported, so label these packages as ppc64.

Debian also has a powerpcspe (32-bit with SPE) architecture.
Label packages with a suitable configuration as powerpcspe.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-28 10:53:44 +09:00
Ben Hutchings
08d3892cdc builddeb: Introduce functions to simplify kconfig tests in set_debarch
We now have many repetitive greps over the kernel config.  Refactor
them into functions.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-28 10:53:44 +09:00
Ben Hutchings
4260ecd0ad builddeb: Drop check for 32-bit s390
s390 now only supports 64-bit configurations.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-28 10:53:44 +09:00
Ben Hutchings
091d30aefc builddeb: Change architecture detection fallback to use dpkg-architecture
We currently use dpkg --print-architecture, which reports the
architecture of the build machine.  We can make a better guess
than this by asking dpkg-architecture what the host architecture,
i.e. the default architecture for building packages, is.  This is
sensitive to environment variables such as CC and DEB_HOST_ARCH,
which should already be set in a cross-build environment.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-28 10:53:44 +09:00
Ben Hutchings
f2abcc13e4 builddeb: Skip architecture detection when KBUILD_DEBARCH is set
If KBUILD_DEBARCH is set then we will not use the result of
architecture detection, and we may also warn unnecessarily.
Move the check for KBUILD_DEBARCH further up to avoid this.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-28 10:53:44 +09:00