- 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
Commit 27f2a4db76 ("Makefile: fix GDB warning with CONFIG_RELR")
added --use-android-relr-tags to fix a GDB warning
BFD: /android0/linux-next/vmlinux: unknown type [0x13] section `.relr.dyn'
The GDB warning has been fixed in version 11.2.
The DT_ANDROID_RELR tag was deprecated since DT_RELR was standardized.
Thus, --use-android-relr-tags should be removed. While making the
change, try -z pack-relative-relocs, which is supported since LLD 15.
Keep supporting --pack-dyn-relocs=relr as well for older LLD versions.
There is no indication of obsolescence for --pack-dyn-relocs=relr.
As of today, GNU ld supports the latter option for x86 and powerpc64
ports and has no intention to support --pack-dyn-relocs=relr. In the
absence of the glibc symbol version GLIBC_ABI_DT_RELR,
--pack-dyn-relocs=relr and -z pack-relative-relocs are identical in
ld.lld.
GNU ld and newer versions of LLD report warnings (instead of errors) for
unknown -z options. Only errors lead to non-zero exit codes. Therefore,
we should test --pack-dyn-relocs=relr before testing
-z pack-relative-relocs.
Link: https://github.com/ClangBuiltLinux/linux/issues/1057
Link: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=a619b58721f0a03fd91c27670d3e4c2fb0d88f1e
Signed-off-by: Fangrui Song <maskray@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
- Exclude kallsyms_seqs_of_names from kallsyms to fix build error
- Fix 'make kernelrelease' for external module builds
- Get the Debian source package compilable again
- Fix the wrong uname when Debian packages are built with the
KDEB_PKGVERSION option
- Fix superfluous CROSS_COMPILE when building Debian packages
- Fix RPM package build error when KCONFIG_CONFIG is set
- Use 'git archive' for creating source tarballs
- Remove the scripts/list-gitignored tool
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Merge tag 'kbuild-fixes-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Exclude kallsyms_seqs_of_names from kallsyms to fix build error
- Fix 'make kernelrelease' for external module builds
- Get the Debian source package compilable again
- Fix the wrong uname when Debian packages are built with the
KDEB_PKGVERSION option
- Fix superfluous CROSS_COMPILE when building Debian packages
- Fix RPM package build error when KCONFIG_CONFIG is set
- Use 'git archive' for creating source tarballs
- Remove the scripts/list-gitignored tool
* tag 'kbuild-fixes-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: use git-archive for source package creation
kbuild: rpm-pkg: move source components to rpmbuild/SOURCES
kbuild: deb-pkg: use dh_listpackages to know enabled packages
kbuild: deb-pkg: split image and debug objects staging out into functions
kbuild: deb-pkg: set CROSS_COMPILE only when undefined
kbuild: deb-pkg: do not take KERNELRELEASE from the source version
kbuild: deb-pkg: make debian source package working again
Makefile: Make kernelrelease target work with M=
kconfig: Update config changed flag before calling callback
kallsyms: add kallsyms_seqs_of_names to list of special symbols
Prepare to add more files to the source RPM.
Also, fix the build error when KCONFIG_CONFIG is set:
error: Bad file: ./.config: No such file or directory
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
That commit required the use of filechk_kernel.release for the
kernelrelease Makefile target. It is currently only being set when
KBUILD_EXTMOD is not set. Make sure it is set in that case as well.
Fixes: 1cb86b6c31 ("kbuild: save overridden KERNELRELEASE in include/config/kernel.release")
Signed-off-by: Tzafrir Cohen <nvidia@cohens.org.il>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
- Change V=1 option to print both short log and full command log.
- Allow V=1 and V=2 to be combined as V=12.
- Make W=1 detect wrong .gitignore files.
- Tree-wide cleanups for unused command line arguments passed to Clang.
- Stop using -Qunused-arguments with Clang.
- Make scripts/setlocalversion handle only correct release tags instead
of any arbitrary annotated tag.
- Create Debian and RPM source packages without cleaning the source tree.
- Various cleanups for packaging.
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Merge tag 'kbuild-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Change V=1 option to print both short log and full command log
- Allow V=1 and V=2 to be combined as V=12
- Make W=1 detect wrong .gitignore files
- Tree-wide cleanups for unused command line arguments passed to Clang
- Stop using -Qunused-arguments with Clang
- Make scripts/setlocalversion handle only correct release tags instead
of any arbitrary annotated tag
- Create Debian and RPM source packages without cleaning the source
tree
- Various cleanups for packaging
* tag 'kbuild-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (74 commits)
kbuild: rpm-pkg: remove unneeded KERNELRELEASE from modules/headers_install
docs: kbuild: remove description of KBUILD_LDS_MODULE
.gitattributes: use 'dts' diff driver for *.dtso files
kbuild: deb-pkg: improve the usability of source package
kbuild: deb-pkg: fix binary-arch and clean in debian/rules
kbuild: tar-pkg: use tar rules in scripts/Makefile.package
kbuild: make perf-tar*-src-pkg work without relying on git
kbuild: deb-pkg: switch over to source format 3.0 (quilt)
kbuild: deb-pkg: make .orig tarball a hard link if possible
kbuild: deb-pkg: hide KDEB_SOURCENAME from Makefile
kbuild: srcrpm-pkg: create source package without cleaning
kbuild: rpm-pkg: build binary packages from source rpm
kbuild: deb-pkg: create source package without cleaning
kbuild: add a tool to list files ignored by git
Documentation/llvm: add Chimera Linux, Google and Meta datacenters
setlocalversion: use only the correct release tag for git-describe
setlocalversion: clean up the construction of version output
.gitignore: ignore *.cover and *.mbx
kbuild: remove --include-dir MAKEFLAG from top Makefile
kbuild: fix trivial typo in comment
...
DT core:
- Add node lifecycle unit tests
- Add of_property_present() helper aligned with fwnode API
- Print more information on reserved regions on boot
- Update dtc to upstream v1.6.1-66-gabbd523bae6e
- Use strscpy() to instead of strncpy() in DT core
- Add option for schema validation on %.dtb targets
Bindings:
- Add/fix support for listing multiple patterns in DT_SCHEMA_FILES
- Rework external memory controller/bus bindings to properly support
controller specific child node properties
- Convert loongson,ls1x-intc, fcs,fusb302, sil,sii8620, Rockchip RK3399
PCIe, Synquacer I2C, and Synquacer EXIU bindings to DT schema format
- Add RiscV SBI PMU event mapping binding
- Add missing contraints on Arm SCMI child node allowed properties
- Add a bunch of missing Socionext UniPhier glue block bindings and
example fixes
- Various fixes for duplicate or conflicting type definitions on DT
properties
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Merge tag 'devicetree-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
"DT core:
- Add node lifecycle unit tests
- Add of_property_present() helper aligned with fwnode API
- Print more information on reserved regions on boot
- Update dtc to upstream v1.6.1-66-gabbd523bae6e
- Use strscpy() to instead of strncpy() in DT core
- Add option for schema validation on %.dtb targets
Bindings:
- Add/fix support for listing multiple patterns in DT_SCHEMA_FILES
- Rework external memory controller/bus bindings to properly support
controller specific child node properties
- Convert loongson,ls1x-intc, fcs,fusb302, sil,sii8620, Rockchip
RK3399 PCIe, Synquacer I2C, and Synquacer EXIU bindings to DT
schema format
- Add RiscV SBI PMU event mapping binding
- Add missing contraints on Arm SCMI child node allowed properties
- Add a bunch of missing Socionext UniPhier glue block bindings and
example fixes
- Various fixes for duplicate or conflicting type definitions on DT
properties"
* tag 'devicetree-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (66 commits)
dt-bindings: regulator: Add mps,mpq7932 power-management IC
of: dynamic: Fix spelling mistake "kojbect" -> "kobject"
dt-bindings: drop Sagar Kadam from SiFive binding maintainership
dt-bindings: sram: qcom,imem: document sm8450
dt-bindings: interrupt-controller: convert loongson,ls1x-intc.txt to json-schema
dt-bindings: arm: Add Cortex-A715 and X3
of: dynamic: add lifecycle docbook info to node creation functions
of: add consistency check to of_node_release()
of: do not use "%pOF" printk format on node with refcount of zero
of: unittest: add node lifecycle tests
of: update kconfig unittest help
of: add processing of EXPECT_NOT to of_unittest_expect
of: prepare to add processing of EXPECT_NOT to of_unittest_expect
of: Use preferred of_property_read_* functions
of: Use of_property_present() helper
of: Add of_property_present() helper
of: reserved_mem: Use proper binary prefix
dt-bindings: Fix multi pattern support in DT_SCHEMA_FILES
of: reserved-mem: print out reserved-mem details during boot
dt-bindings: serial: restrict possible child node names
...
More core additions, getting closer to a point where the first Rust
modules can be upstreamed. The major ones being:
- Sync: new types 'Arc', 'ArcBorrow' and 'UniqueArc'.
- Types: new trait 'ForeignOwnable' and new type 'ScopeGuard'.
There is also a substantial removal in terms of lines:
- 'alloc' crate: remove the 'borrow' module (type 'Cow' and trait
'ToOwned').
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Merge tag 'rust-6.3' of https://github.com/Rust-for-Linux/linux
Pull Rust updates from Miguel Ojeda:
"More core additions, getting closer to a point where the first Rust
modules can be upstreamed. The major ones being:
- Sync: new types 'Arc', 'ArcBorrow' and 'UniqueArc'.
- Types: new trait 'ForeignOwnable' and new type 'ScopeGuard'.
There is also a substantial removal in terms of lines:
- 'alloc' crate: remove the 'borrow' module (type 'Cow' and trait
'ToOwned')"
* tag 'rust-6.3' of https://github.com/Rust-for-Linux/linux:
rust: delete rust-project.json when running make clean
rust: MAINTAINERS: Add the zulip link
rust: types: implement `ForeignOwnable` for `Arc<T>`
rust: types: implement `ForeignOwnable` for the unit type
rust: types: implement `ForeignOwnable` for `Box<T>`
rust: types: introduce `ForeignOwnable`
rust: types: introduce `ScopeGuard`
rust: prelude: prevent doc inline of external imports
rust: sync: add support for dispatching on Arc and ArcBorrow.
rust: sync: introduce `UniqueArc`
rust: sync: allow type of `self` to be `ArcBorrow<T>`
rust: sync: introduce `ArcBorrow`
rust: sync: allow coercion from `Arc<T>` to `Arc<U>`
rust: sync: allow type of `self` to be `Arc<T>` or variants
rust: sync: add `Arc` for ref-counted allocations
rust: compiler_builtins: make stubs non-global
rust: alloc: remove the `borrow` module (`ToOwned`, `Cow`)
In short, the motivation of this commit is to build a source package
without cleaning the source tree.
The deb-pkg and (src)rpm-pkg targets first run 'make clean' before
creating a source tarball. Otherwise build artifacts such as *.o,
*.a, etc. would be included in the tarball. Yet, the tarball ends up
containing several garbage files since 'make clean' does not clean
everything.
Cleaning the tree every time is annoying since it makes the incremental
build impossible. It is desirable to create a source tarball without
cleaning the tree.
In fact, there are some ways to achieve this.
The easiest solution is 'git archive'. 'make perf-tar*-src-pkg' uses
it, but I do not like it because it works only when the source tree is
managed by git, and all files you want in the tarball must be committed
in advance.
I want to make it work without relying on git. We can do this.
Files that are ignored by git are generated files, so should be excluded
from the source tarball. We can list them out by parsing the .gitignore
files. Of course, .gitignore does not cover all the cases, but it works
well enough.
tar(1) claims to support it:
--exclude-vcs-ignores
Exclude files that match patterns read from VCS-specific ignore files.
Supported files are: .cvsignore, .gitignore, .bzrignore, and .hgignore.
The best scenario would be to use 'tar --exclude-vcs-ignores', but this
option does not work. --exclude-vcs-ignore does not understand any of
the negation (!), preceding slash, following slash, etc.. So, this option
is just useless.
Hence, I wrote this gitignore parser. The previous version [1], written
in Python, was so slow. This version is implemented in C, so it works
much faster.
I imported the code from git (commit: 23c56f7bd5f1), so we get the same
result.
This tool traverses the source tree, parsing all .gitignore files, and
prints file paths that are ignored by git.
The output is similar to 'git ls-files --ignored --directory --others
--exclude-per-directory=.gitignore', except
[1] Not sorted
[2] No trailing slash for directories
[2] is intentional because tar's --exclude-from option cannot handle
trailing slashes.
[How to test this tool]
$ git clean -dfx
$ make -s -j$(nproc) defconfig all # or allmodconifg or whatever
$ git archive -o ../linux1.tar --prefix=./ HEAD
$ tar tf ../linux1.tar | LANG=C sort > ../file-list1 # files emitted by 'git archive'
$ make scripts_package
HOSTCC scripts/list-gitignored
$ scripts/list-gitignored --prefix=./ -o ../exclude-list
$ tar cf ../linux2.tar --exclude-from=../exclude-list .
$ tar tf ../linux2.tar | LANG=C sort > ../file-list2 # files emitted by 'tar'
$ diff ../file-list1 ../file-list2 | grep -E '^(<|>)'
< ./Documentation/devicetree/bindings/.yamllint
< ./drivers/clk/.kunitconfig
< ./drivers/gpu/drm/tests/.kunitconfig
< ./drivers/hid/.kunitconfig
< ./fs/ext4/.kunitconfig
< ./fs/fat/.kunitconfig
< ./kernel/kcsan/.kunitconfig
< ./lib/kunit/.kunitconfig
< ./mm/kfence/.kunitconfig
< ./tools/testing/selftests/arm64/tags/
< ./tools/testing/selftests/arm64/tags/.gitignore
< ./tools/testing/selftests/arm64/tags/Makefile
< ./tools/testing/selftests/arm64/tags/run_tags_test.sh
< ./tools/testing/selftests/arm64/tags/tags_test.c
< ./tools/testing/selftests/kvm/.gitignore
< ./tools/testing/selftests/kvm/Makefile
< ./tools/testing/selftests/kvm/config
< ./tools/testing/selftests/kvm/settings
The source tarball contains most of files that are tracked by git. You
see some diffs, but it is just because some .gitignore files are wrong.
$ git ls-files -i -c --exclude-per-directory=.gitignore
Documentation/devicetree/bindings/.yamllint
drivers/clk/.kunitconfig
drivers/gpu/drm/tests/.kunitconfig
drivers/hid/.kunitconfig
fs/ext4/.kunitconfig
fs/fat/.kunitconfig
kernel/kcsan/.kunitconfig
lib/kunit/.kunitconfig
mm/kfence/.kunitconfig
tools/testing/selftests/arm64/tags/.gitignore
tools/testing/selftests/arm64/tags/Makefile
tools/testing/selftests/arm64/tags/run_tags_test.sh
tools/testing/selftests/arm64/tags/tags_test.c
tools/testing/selftests/kvm/.gitignore
tools/testing/selftests/kvm/Makefile
tools/testing/selftests/kvm/config
tools/testing/selftests/kvm/settings
[1]: https://lore.kernel.org/all/20230128173843.765212-1-masahiroy@kernel.org/
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
rust-project.json is the configuration file used by rust-analyzer.
As it is a configuration file and it is not needed to build external
modules, it should be delete by make clean. So, delete rust-project.json
when running make clean.
Link: https://github.com/Rust-for-Linux/linux/issues/939
Suggested-by: Björn Roy Baron <bjorn3_gh@protonmail.com>
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Finn Behrens <fin@nyantec.com>
Acked-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
I added $(srctree)/ to some included Makefiles in the following commits:
- 3204a7fb98 ("kbuild: prefix $(srctree)/ to some included Makefiles")
- d828563955 ("kbuild: do not require sub-make for separate output tree builds")
They were a preparation for removing --include-dir flag.
I have never thought --include-dir useful. Rather, it _is_ harmful.
For example, run the following commands:
$ make -s ARCH=x86 mrproper defconfig
$ make ARCH=arm O=foo dtbs
make[1]: Entering directory '/tmp/linux/foo'
HOSTCC scripts/basic/fixdep
Error: kernelrelease not valid - run 'make prepare' to update it
UPD include/config/kernel.release
make[1]: Leaving directory '/tmp/linux/foo'
The first command configures the source tree for x86. The next command
tries to build ARM device trees in the separate foo/ directory - this
must stop because the directory foo/ has not been configured yet.
However, due to --include-dir=$(abs_srctree), the top Makefile includes
the wrong include/config/auto.conf from the source tree and continues
building. Kbuild traverses the directory tree, but of course it does
not work correctly. The Error message is also pointless - 'make prepare'
does not help at all for fixing the issue.
This commit fixes more arch Makefile, and finally removes --include-dir
from the top Makefile.
There are more breakages under drivers/, but I do not volunteer to fix
them all. I just moved --include-dir to drivers/Makefile.
With this commit, the second command will stop with a sensible message.
$ make -s ARCH=x86 mrproper defconfig
$ make ARCH=arm O=foo dtbs
make[1]: Entering directory '/tmp/linux/foo'
SYNC include/config/auto.conf.cmd
***
*** The source tree is not clean, please run 'make ARCH=arm mrproper'
*** in /tmp/linux
***
make[2]: *** [../Makefile:646: outputmakefile] Error 1
/tmp/linux/Makefile:770: include/config/auto.conf.cmd: No such file or directory
make[1]: *** [/tmp/linux/Makefile:793: include/config/auto.conf.cmd] Error 2
make[1]: Leaving directory '/tmp/linux/foo'
make: *** [Makefile:226: __sub-make] Error 2
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
After commit 8d9acfce33 ("kbuild: Stop using '-Qunused-arguments' with
clang"), the PowerPC vDSO shows the following error with clang-13 and
older when CONFIG_INIT_STACK_ALL_ZERO is enabled:
clang: error: argument unused during compilation: '-enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang' [-Werror,-Wunused-command-line-argument]
clang-14 added a change to make sure this flag never triggers
-Wunused-command-line-argument, so it is fixed with newer releases. For
older releases that the kernel still supports building with, just filter
out this flag, as has been done for other flags.
Fixes: f0a42fbab4 ("powerpc/vdso: Improve linker flags")
Fixes: 8d9acfce33 ("kbuild: Stop using '-Qunused-arguments' with clang")
Link: ca6d5813d1
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
${KERNELRELEASE} is used as a part of the installation path.
(INSTALL_DTBS_PATH, MODLIB, etc.)
When KERNELRELEASE is overridden from the command line, it should be
saved in include/config/kernel.release, so that it will be consistently
used for the installation steps.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This option masks all unused command line argument warnings, which can
hide potential issues, such as an architecture Makefile adding an
unsupported flag to KBUILD_AFLAGS or KBUILD_CFLAGS, which will cause all
as-option and cc-options to silently fail due to -Werror with no
indication as to why in the main kernel build.
Remove this flag so that warnings of this nature can be caught early and
obviously in a build.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reuse the standard naming schema for temporary files also for temporary
directories.
Such a directory will be used by the kheaders generation.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Tested-by: Nicolas Schier <nicolas@fjasle.eu>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
scripts/ is a better place to generate files used treewide.
With target.json moved to scripts/, you do not need to add target.json
to no-clean-files or MRPROPER_FILES.
'make clean' does not visit scripts/, but 'make mrproper' does.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
The top .gitignore comments about how to detect files breaking
.gitignore rules, but people rarely care about it.
Add a new W=1 warning to detect files that are tracked but ignored by
git. If git is not installed or the source tree is not tracked by git
at all, this script does not print anything.
Running it on v6.2-rc1 detected the following:
$ make W=1 misc-check
Documentation/devicetree/bindings/.yamllint: warning: ignored by one of the .gitignore files
drivers/clk/.kunitconfig: warning: ignored by one of the .gitignore files
drivers/gpu/drm/tests/.kunitconfig: warning: ignored by one of the .gitignore files
drivers/hid/.kunitconfig: warning: ignored by one of the .gitignore files
fs/ext4/.kunitconfig: warning: ignored by one of the .gitignore files
fs/fat/.kunitconfig: warning: ignored by one of the .gitignore files
kernel/kcsan/.kunitconfig: warning: ignored by one of the .gitignore files
lib/kunit/.kunitconfig: warning: ignored by one of the .gitignore files
mm/kfence/.kunitconfig: warning: ignored by one of the .gitignore files
tools/testing/selftests/arm64/tags/.gitignore: warning: ignored by one of the .gitignore files
tools/testing/selftests/arm64/tags/Makefile: warning: ignored by one of the .gitignore files
tools/testing/selftests/arm64/tags/run_tags_test.sh: warning: ignored by one of the .gitignore files
tools/testing/selftests/arm64/tags/tags_test.c: warning: ignored by one of the .gitignore files
These are ignored by the '.*' or 'tags' in the top .gitignore, but
there is no rule to negate it.
You might be tempted to do 'git add -f' but I want to have the real
issue fixed (by fixing a .gitignore, or by renaming files, etc.).
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
The top Makefile sets KBUILD_VERBOSE to 0 by default, it looks weird
now because V=1 and V=2 can be OR'ed as V=12. The default should be
empty.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Commit a6de553da0 ("kbuild: Allow to combine multiple W= levels")
supported W=123 to enable all the extra warning groups.
I think a similar idea is applicable to the V= option.
V=1 echos the whole command
V=2 prints the reason for rebuilding
These are orthogonal, and can be enabled at the same time.
This commit supports V=12 to enable both of them.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Nicolas Schier <nicolas@fjasle.eu>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
"make V=1" prints the whole command instead of the short log, but I
think it is nicer to print both so that you can easily spot the build
rule of your interest.
This commit changes V=1 to print the short log (the line starts with
'#'), followed by the full log.
In parallel builds, the short/full logs from the same build rule may
be interspersed. If you want to avoid it, please add -Otarget option.
Kbuild will never set it by default because Make would buffer the logs
and lose the escape sequences. (Modern compilers print warnings and
errors in color, but only when they write to a terminal.)
This is also a preparation for supporting V=12 because V=2 appends the
reason for rebuilding to the short log.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Nicolas Schier <nicolas@fjasle.eu>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
- Hide LDFLAGS_vmlinux from decompressor Makefiles to fix error messages
when GNU Make 4.4 is used.
- Fix 'make modules' build error when CONFIG_DEBUG_INFO_BTF_MODULES=y.
- Fix warnings emitted by GNU Make 4.4 in scripts/kconfig/Makefile.
- Support GNU Make 4.4 for scripts/jobserver-exec.
- Show clearer error message when kernel/gen_kheaders.sh fails due to
missing cpio.
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Merge tag 'kbuild-fixes-v6.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Hide LDFLAGS_vmlinux from decompressor Makefiles to fix error
messages when GNU Make 4.4 is used.
- Fix 'make modules' build error when CONFIG_DEBUG_INFO_BTF_MODULES=y.
- Fix warnings emitted by GNU Make 4.4 in scripts/kconfig/Makefile.
- Support GNU Make 4.4 for scripts/jobserver-exec.
- Show clearer error message when kernel/gen_kheaders.sh fails due to
missing cpio.
* tag 'kbuild-fixes-v6.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kheaders: explicitly validate existence of cpio command
scripts: support GNU make 4.4 in jobserver-exec
kconfig: Update all declared targets
scripts: rpm: make clear that mkspec script contains 4.13 feature
init/Kconfig: fix LOCALVERSION_AUTO help text
kbuild: fix 'make modules' error when CONFIG_DEBUG_INFO_BTF_MODULES=y
kbuild: export top-level LDFLAGS_vmlinux only to scripts/Makefile.vmlinux
init/version-timestamp.c: remove unneeded #include <linux/version.h>
docs: kbuild: remove mention to dropped $(objtree) feature
When CONFIG_DEBUG_INFO_BTF_MODULES=y, running 'make modules'
in the clean kernel tree will get the following error.
$ grep CONFIG_DEBUG_INFO_BTF_MODULES .config
CONFIG_DEBUG_INFO_BTF_MODULES=y
$ make -s clean
$ make modules
[snip]
AR vmlinux.a
ar: ./built-in.a: No such file or directory
make: *** [Makefile:1241: vmlinux.a] Error 1
'modules' depends on 'vmlinux', but builtin objects are not built.
Define KBUILD_BUILTIN.
Fixes: f73edc8951 ("kbuild: unify two modpost invocations")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Nathan Chancellor reports that $(NM) emits an error message when
GNU Make 4.4 is used to build the ARM zImage.
$ make-4.4 ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- O=build defconfig zImage
[snip]
LD vmlinux
NM System.map
SORTTAB vmlinux
OBJCOPY arch/arm/boot/Image
Kernel: arch/arm/boot/Image is ready
arm-linux-gnueabi-nm: 'arch/arm/boot/compressed/../../../../vmlinux': No such file
/bin/sh: 1: arithmetic expression: expecting primary: " "
LDS arch/arm/boot/compressed/vmlinux.lds
AS arch/arm/boot/compressed/head.o
GZIP arch/arm/boot/compressed/piggy_data
AS arch/arm/boot/compressed/piggy.o
CC arch/arm/boot/compressed/misc.o
This occurs since GNU Make commit 98da874c4303 ("[SV 10593] Export
variables to $(shell ...) commands"), and the O= option is needed to
reproduce it. The generated zImage is correct despite the error message.
As the commit description of 98da874c4303 [1] says, exported variables
are passed down to $(shell ) functions, which means exported recursive
variables might be expanded earlier than before, in the parse stage.
The following test code demonstrates the change for GNU Make 4.4.
[Test Makefile]
$(shell echo hello > foo)
export foo = $(shell cat bar/../foo)
$(shell mkdir bar)
all:
@echo $(foo)
[GNU Make 4.3]
$ rm -rf bar; make-4.3
hello
[GNU Make 4.4]
$ rm -rf bar; make-4.4
cat: bar/../foo: No such file or directory
hello
The 'foo' is a resursively expanded (i.e. lazily expanded) variable.
GNU Make 4.3 expands 'foo' just before running the recipe '@echo $(foo)',
at this point, the directory 'bar' exists.
GNU Make 4.4 expands 'foo' to evaluate $(shell mkdir bar) because it is
exported. At this point, the directory 'bar' does not exit yet. The cat
command cannot resolve the bar/../foo path, hence the error message.
Let's get back to the kernel Makefile.
In arch/arm/boot/compressed/Makefile, KBSS_SZ is referenced by
LDFLAGS_vmlinux, which is recursive and also exported by the top
Makefile.
GNU Make 4.3 expands KBSS_SZ just before running the recipes, so no
error message.
GNU Make 4.4 expands KBSS_SZ in the parse stage, where the directory
arm/arm/boot/compressed does not exit yet. When compiled with O=,
the output directory is created by $(shell mkdir -p $(obj-dirs))
in scripts/Makefile.build.
There are two ways to fix this particular issue:
- change "$(obj)/../../../../vmlinux" in KBSS_SZ to "vmlinux"
- unexport LDFLAGS_vmlinux
This commit takes the latter course because it is what I originally
intended.
Commit 3ec8a5b33d ("kbuild: do not export LDFLAGS_vmlinux")
unexported LDFLAGS_vmlinux.
Commit 5d4aeffbf7 ("kbuild: rebuild .vmlinux.export.o when its
prerequisite is updated") accidentally exported it again.
We can clean up arch/arm/boot/compressed/Makefile later.
[1]: https://git.savannah.gnu.org/cgit/make.git/commit/?id=98da874c43035a490cdca81331724f233a3d0c9a
Link: https://lore.kernel.org/all/Y7i8+EjwdnhHtlrr@dev-arch.thelio-3990X/
Fixes: 5d4aeffbf7 ("kbuild: rebuild .vmlinux.export.o when its prerequisite is updated")
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Tested-by: Nathan Chancellor <nathan@kernel.org>
The single *.ko build is broken since commit f65a486821 ("kbuild:
change module.order to list *.o instead of *.ko").
Fixes: f65a486821 ("kbuild: change module.order to list *.o instead of *.ko")
Reported-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Marc Kleine-Budde <mkl@pengutronix.de>
This was previously alphabetically sorted. Sort it again.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
While not documented, schema checks for single dtb targets mostly work
already by setting 'CHECK_DTBS=1'. However, the dependencies are not
handled and it only works if 'make dt_bindings_check' was run first and
generated processed-schema.json. In addition, changing a binding file
doesn't cause the schema to be rebuilt and dtb to be revalidated.
Making this work turns out to be simple. Whenever CHECK_DTBS is set,
make 'dt_binding_check' a 'dtbs_prepare' dependency.
I reimplemented here what Masahiro had originally come up with a while
back.
Suggested-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Marek Vasut <marex@denx.de>
Link: https://lore.kernel.org/r/20221220013233.2890335-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
- Support zstd-compressed debug info
- Allow W=1 builds to detect objects shared among multiple modules
- Add srcrpm-pkg target to generate a source RPM package
- Make the -s option detection work for future GNU Make versions
- Add -Werror to KBUILD_CPPFLAGS when CONFIG_WERROR=y
- Allow W=1 builds to detect -Wundef warnings in any preprocessed files
- Raise the minimum supported version of binutils to 2.25
- Use $(intcmp ...) to compare integers if GNU Make >= 4.4 is used
- Use $(file ...) to read a file if GNU Make >= 4.2 is used
- Print error if GNU Make older than 3.82 is used
- Allow modpost to detect section mismatches with Clang LTO
- Include vmlinuz.efi into kernel tarballs for arm64 CONFIG_EFI_ZBOOT=y
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Merge tag 'kbuild-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Support zstd-compressed debug info
- Allow W=1 builds to detect objects shared among multiple modules
- Add srcrpm-pkg target to generate a source RPM package
- Make the -s option detection work for future GNU Make versions
- Add -Werror to KBUILD_CPPFLAGS when CONFIG_WERROR=y
- Allow W=1 builds to detect -Wundef warnings in any preprocessed files
- Raise the minimum supported version of binutils to 2.25
- Use $(intcmp ...) to compare integers if GNU Make >= 4.4 is used
- Use $(file ...) to read a file if GNU Make >= 4.2 is used
- Print error if GNU Make older than 3.82 is used
- Allow modpost to detect section mismatches with Clang LTO
- Include vmlinuz.efi into kernel tarballs for arm64 CONFIG_EFI_ZBOOT=y
* tag 'kbuild-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (29 commits)
buildtar: fix tarballs with EFI_ZBOOT enabled
modpost: Include '.text.*' in TEXT_SECTIONS
padata: Mark padata_work_init() as __ref
kbuild: ensure Make >= 3.82 is used
kbuild: refactor the prerequisites of the modpost rule
kbuild: change module.order to list *.o instead of *.ko
kbuild: use .NOTINTERMEDIATE for future GNU Make versions
kconfig: refactor Makefile to reduce process forks
kbuild: add read-file macro
kbuild: do not sort after reading modules.order
kbuild: add test-{ge,gt,le,lt} macros
Documentation: raise minimum supported version of binutils to 2.25
kbuild: add -Wundef to KBUILD_CPPFLAGS for W=1 builds
kbuild: move -Werror from KBUILD_CFLAGS to KBUILD_CPPFLAGS
kbuild: Port silent mode detection to future gnu make.
init/version.c: remove #include <generated/utsrelease.h>
firmware_loader: remove #include <generated/utsrelease.h>
modpost: Mark uuid_le type to be suitable only for MEI
kbuild: add ability to make source rpm buildable using koji
kbuild: warn objects shared among multiple modules
...
Linus Torvalds