15 Oct, 2016
1 commit
-
Pull kbuild updates from Michal Marek:
- EXPORT_SYMBOL for asm source by Al Viro.
This does bring a regression, because genksyms no longer generates
checksums for these symbols (CONFIG_MODVERSIONS). Nick Piggin is
working on a patch to fix this.Plus, we are talking about functions like strcpy(), which rarely
change prototypes.- Fixes for PPC fallout of the above by Stephen Rothwell and Nick
Piggin- fixdep speedup by Alexey Dobriyan.
- preparatory work by Nick Piggin to allow architectures to build with
-ffunction-sections, -fdata-sections and --gc-sections- CONFIG_THIN_ARCHIVES support by Stephen Rothwell
- fix for filenames with colons in the initramfs source by me.
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: (22 commits)
initramfs: Escape colons in depfile
ppc: there is no clear_pages to export
powerpc/64: whitelist unresolved modversions CRCs
kbuild: -ffunction-sections fix for archs with conflicting sections
kbuild: add arch specific post-link Makefile
kbuild: allow archs to select link dead code/data elimination
kbuild: allow architectures to use thin archives instead of ld -r
kbuild: Regenerate genksyms lexer
kbuild: genksyms fix for typeof handling
fixdep: faster CONFIG_ search
ia64: move exports to definitions
sparc32: debride memcpy.S a bit
[sparc] unify 32bit and 64bit string.h
sparc: move exports to definitions
ppc: move exports to definitions
arm: move exports to definitions
s390: move exports to definitions
m68k: move exports to definitions
alpha: move exports to actual definitions
x86: move exports to actual definitions
...
09 Sep, 2016
1 commit
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Allow architectures to create arch/xxx/Makefile.postlink with targets
for vmlinux, modules.ko, and clean, which will be invoked after final
linking of vmlinux and modules.powerpc will use this to check vmlinux linker relocations for sanity,
and may use it to fix up alternate instruction patch branch addresses.Signed-off-by: Nicholas Piggin
Signed-off-by: Michal Marek
19 Aug, 2016
1 commit
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Improper menuconfig usage leads to empty menu entries.
zconfdump() is able to reveal some real-life examples:
- menuconfig VFIO_NOIOMMU
- menuconfig RESET_CONTROLLER
- menuconfig SND_ARMTo avoid future occurrences of those, improve the menuconfig syntax
description.Signed-off-by: Eugeniu Rosca
Signed-off-by: Jonathan Corbet
07 Jul, 2016
1 commit
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Track generated header files which aren't already in genhdr-y, alongside
generic-y wrappers in the */include/generated/[uapi/]asm/ directories.
Currently only x86 generates extra headers in these directories, for the
purposes of enumerating system calls for different ABIs, and xen
hypercalls.This will allow the asm-generic wrapper handling code to remove stale
wrappers when files are removed from generic-y, without also removing
these headers which are generated separately.Reported-by: kbuild test robot
Signed-off-by: James Hogan
Acked-by: Arnd Bergmann
Cc: Jonathan Corbet
Cc: linux-kbuild@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: Michal Marek
Link: http://lkml.kernel.org/r/1466808144-23209-2-git-send-email-james.hogan@imgtec.com
Signed-off-by: Thomas Gleixner
10 May, 2016
2 commits
-
The type of a choice can be specified explicitely or it will be
set according to members of the choice group, see menu.c:menu_finalize().Signed-off-by: Dirk Gouders
Signed-off-by: Michal Marek -
In the given example, the comment becomes visible when it's dependency
is set to 'n', but the text asserts the opposite.Signed-off-by: Dirk Gouders
Signed-off-by: Michal Marek
08 Oct, 2015
1 commit
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Recursive dependency issues with kconfig are unavoidable due to
some limitations with kconfig, since these issues are recurring
provide a hint to the user how they can resolve these dependency
issues and also document why such limitation exists.While at it also document a bit of future prospects of ways to
enhance Kconfig, including providing formal semantics and evaluation
of use of a SAT solver. If you're interested in this work or prospects
of it check out the kconfig-sat project wiki [0] and mailing list [1].[0] http://kernelnewbies.org/KernelProjects/kconfig-sat
[1] https://groups.google.com/d/forum/kconfig-satCc: Geert Uytterhoeven
Cc: James Bottomley
Cc: Josh Triplett
Cc: Paul Bolle
Cc: Herbert Xu
Cc: Takashi Iwai
Cc: "Yann E. MORIN"
Cc: Jonathan Corbet
Cc: Mate Soos
Signed-off-by: Luis R. Rodriguez
Signed-off-by: Michal Marek
07 Aug, 2015
1 commit
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We don't want this in the Kconfig since it might then get exposed in
/proc/config.gz. So make it a parameter to Kbuild instead. This also
means we don't have to jump through hoops to strip quotes from it, as
we would if it was a config option.Signed-off-by: David Woodhouse
Signed-off-by: David Howells
Reviewed-by: Mimi Zohar
06 Jul, 2015
1 commit
-
Since commit a1c48bb1 (Makefile: Fix unrecognized cross-compiler command
line options), the arch Makefile is included earlier by the main
Makefile, preventing the arc architecture to set its -O3 compiler
option. Since there might be more use cases for an arch Makefile to
fine-tune the options, add support for ARCH_CPPFLAGS, ARCH_AFLAGS and
ARCH_CFLAGS variables that are appended to the respective kbuild
variables. The user still has the final say via the KCPPFLAGS, KAFLAGS
and KCFLAGS variables.Reported-by: Vineet Gupta
Cc: stable@vger.kernel.org # 3.16+
Signed-off-by: Michal Marek
22 Jun, 2015
1 commit
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The header install makefile creates an 'include' directory inside
INSTALL_HDR_PATH and appending include to the path results in headers
being installed to include/include.Don't recommend appending include to the path as makefile already does
this.Signed-off-by: Anish Bhatt
Signed-off-by: Jonathan Corbet
09 Jun, 2015
1 commit
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Commit 976591810f8a (kbuild Update documentation of clean-files and clean-dirs)
changed the example for the clean-files variable, but left the explanation
unchanged. Edit the explanation to match the example.Signed-off-by: Jeffrey Rogers
Signed-off-by: Jonathan Corbet
20 Feb, 2015
1 commit
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Pull misc kbuild changes from Michal Marek:
"Just a few non-critical kbuild changes:- builddeb adds the actual distribution name in the changelog
- documentation fixes"* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: trivial - fix the help doc of CONFIG_CC_OPTIMIZE_FOR_SIZE
kbuild: Update documentation of clean-files and clean-dirs
builddeb: Try to determine distribution
builddeb: Update year and git repository URL in debian/copyright
10 Jan, 2015
2 commits
-
The macro "try-run" can have an argument for each of true and false
cases. Having an argument for the false case of cc-ifversion (and
ld-ifversion) would be useful too.Signed-off-by: Masahiro Yamada
Signed-off-by: Michal Marek -
The macros cc-version, cc-fullversion and ld-version take no argument.
It is not necessary to add $(call ...) to invoke them.Signed-off-by: Masahiro Yamada
Acked-by: Helge Deller [parisc]
Signed-off-by: Michal Marek
08 Jan, 2015
1 commit
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Commit a16c5f99 (kbuild: Fix removal of the debian/ directory) slightly
changed the processing of the clean-files and clean-dirs variables.
Also, use a current real-world example of clean-files usage.Signed-off-by: Michal Marek
19 Aug, 2014
4 commits
-
- singular versus plural,
- "by" versus "of",
- missing "if", "it", "the",
- consistent use of "xxx-specific" versus "xxx specific".Signed-off-by: Geert Uytterhoeven
Acked-by: Randy Dunlap
Signed-off-by: Michal Marek -
Commit b40b25fff8205dd18124d8fc87b2c9c57f269b5f ("kbuild: always
run gcc -E on *.dts, remove cmd_dtc_cpp") improved the functionality of
cmd_dtc_cpp and merged it back into cmd_dtc.Signed-off-by: Geert Uytterhoeven
Signed-off-by: Michal Marek -
- These days if_changed is used with many more commands than ld,
objcopy, and gzip, hence add an ellipsis,
- Any target that utilises if_changed must be listed in $(targets),
so it needs an assignment to "targets", not "target".Signed-off-by: Geert Uytterhoeven
Signed-off-by: Michal Marek -
As of commit f7f16b7799ed68654850ab340ef812895aebcf4c ("kbuild: drop
include/asm"), the include/asm symlink is no longer created.Signed-off-by: Geert Uytterhoeven
Signed-off-by: Michal Marek
15 Aug, 2014
2 commits
-
Pull misc kbuild updates from Michal Marek:
"This is the non-critical part of kbuild for 3.17-rc1:- make help hint to use make -s with make kernelrelease et al.
- moved a kbuild document to Documentation/kbuild where it belongs
- four new Coccinelle scripts, one dropped and one fixed
- new make kselftest target to run various tests on the kernel"* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: kselftest - new make target to build and run kernel selftests
Coccinelle: Script to replace if and BUG with BUG_ON
Coccinelle: Script to detect incorrect argument to sizeof
Coccinelle: Script to use ARRAY_SIZE instead of division of two sizeofs
Coccinelle: Script to detect cast after memory allocation
coccinelle/null: solve parse error
Documentation: headers_install.txt is part of kbuild
kbuild: make -s should be used with kernelrelease/kernelversion/image_name -
Pull kbuild updates from Michal Marek:
- make clean also considers $(extra-m) and $(extra-) to be consistent
- cleanup and fixes in scripts/Makefile.host
- allow to override the name of the Python 2 executable with make
PYTHON=... (only needed for ia64 in practice)
- option to split debugingo into *.dwo files to save disk space if the
compiler supports it (CONFIG_DEBUG_INFO_SPLIT)
- option to use dwarf4 debuginfo if the compiler supports it
(CONFIG_DEBUG_INFO_DWARF4)
- fix for disabling certain warnings with clang
- fix for unneeded rebuild with dash when a command contains
backslashes* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: Fix handling of backslashes in *.cmd files
kbuild, LLVMLinux: Supress warnings unless W=1-3
Kbuild: Add a option to enable dwarf4 v2
kbuild: Support split debug info v4
kbuild: allow to override Python command name
kbuild: clean-up and bug fix of scripts/Makefile.host
kbuild: clean up scripts/Makefile.host
kbuild: drop shared library support from Makefile.host
kbuild: fix a bug of C++ host program handling
kbuild: fix a typo in scripts/Makefile.host
scripts/Makefile.clean: clean also $(extra-m) and $(extra-)
05 Aug, 2014
1 commit
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'headers_install.txt' from Documentation/make/ is related to Kbuild
so it must be moved in Documentation/kbuild/ directory.As Documentation/make/ directory has only one file, it will be removed
as a consequence of moving 'headers_install.txt'.Cc: Kirill A. Shutemov
Cc: David Woodhouse
Cc: Rob Landley
Signed-off-by: Yann Droneaud
Acked-by: Sam Ravnborg
Signed-off-by: Michal Marek
16 Jul, 2014
1 commit
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The shared library feature in Makefile.host is no longer used.
Rip it off to keep the build infrastucture simple.Update Documentation/kbuild/makefiles.txt too.
The section "4.3 Definition shared libraries" should be removed
and the following sections should be re-numbered.Signed-off-by: Masahiro Yamada
Suggested-by: Sam Ravnborg
Signed-off-by: Michal Marek
19 Jun, 2014
1 commit
-
Signed-off-by: Masahiro Yamada
Signed-off-by: Michal Marek
10 Jun, 2014
1 commit
-
Signed-off-by: Warren Turkal
Acked-by: Randy Dunlap
Signed-off-by: Michal Marek
08 Apr, 2014
1 commit
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"make allnoconfig" exists to ease testing of minimal configurations.
Documentation/SubmitChecklist includes a note to test with allnoconfig.
This helps catch missing dependencies on common-but-not-required
functionality, which might otherwise go unnoticed.However, allnoconfig still leaves many symbols enabled, because they're
hidden behind CONFIG_EMBEDDED or CONFIG_EXPERT. For instance, allnoconfig
still has CONFIG_PRINTK and CONFIG_BLOCK enabled, so drivers don't
typically get build-tested with those disabled.To address this, introduce a new Kconfig option "allnoconfig_y", used on
symbols which only exist to hide other symbols. Set it on CONFIG_EMBEDDED
(which then selects CONFIG_EXPERT). allnoconfig will then disable all the
symbols hidden behind those.Signed-off-by: Josh Triplett
Tested-by: Paul E. McKenney
Cc: Michal Marek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
09 Oct, 2013
1 commit
-
Signed-off-by: Regid Ichira
Acked-by: Rob Landley
[yann.morin.1998@free.fr: fix trailing whitespace, commit subject]
Signed-off-by: "Yann E. MORIN"
05 Sep, 2013
1 commit
-
Previously, it was possible to have more than one symbol with the
'option modules' attached to them, although only the last one would
in fact control tristates.Since this does not make much sense, only allow at most one symbol to
control tristates.Note: it is still possible to have more than one symbol that control
tristates, but indirectly:config MOD1
bool "mod1"
select MODULES
config MOD2
bool "mod2"
select MODULES
config MODULES
bool
option modulesSigned-off-by: "Yann E. MORIN"
Cc: Sam Ravnborg
Signed-off-by: Michal Marek
23 Jul, 2013
1 commit
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…config into kbuild/kconfig
17 Jul, 2013
1 commit
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Re-phrase the explanations on the sorting of search results, in a more
concise and complete way.Drop reference to the user's locale when sorting alphabetically, since
this is implicit.Reported-by: Jean Delvare
Signed-off-by: "Yann E. MORIN"
Cc: Jean Delvare
Reviewed-by: Jean Delvare
11 Jul, 2013
1 commit
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Pull kconfig updates from Michal Marek:
- dependency solver fix for make defconfig
- randconfig fixes, one of which had to be reverted again
- more user-friendly sorting of search results
- hex and range keywords support longs
- fix for [mn]conf not to rely on particular behavior of the LINES and
COLS variables
- cleanup of magic constants in kconfig/lxdialog
- [mn]conf formatting fixes
- fix for scripts/config's help text in out-of-tree usage (under a
different name)* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kconfig: allow "hex" and "range" to support longs
Revert "kconfig: fix randomising choice entries in presence of KCONFIG_ALLCONFIG"
kconfig: fix randomising choice entries in presence of KCONFIG_ALLCONFIG
kconfig: loop as long as we changed some symbols in randconfig
kconfig/[mn]conf: make it explicit in the search box that a regexp is possible
kconfig: sort found symbols by relevance
kconfig/conf: print the seed used to initialise the RNG for randconfig
kconfig/conf: accept a base-16 seed for randconfig
kconfig/conf: fix randconfig setting multiple symbols in a choice
scripts/config: replace hard-coded script name by a dynamic value
mconf/nconf: mark empty menus/menuconfigs different from non-empty ones
nconf: use function calls instead of ncurses' variables LINES and COLS
mconf: use function calls instead of ncurses' variables LINES and COLS
kconfig/lxdialog: handle newline characters in print_autowrap()
kconfig/lxdialog: Use new mininimum resize definitions in conf_choice()
kconfig/lxdialog: Add definitions for mininimum (re)size values
kconfig: Fix defconfig when one choice menu selects options that another choice menu depends on
25 Jun, 2013
1 commit
-
When searching for symbols, return the symbols sorted by relevance.
Sorting is done as thus:
- first, symbols that match exactly
- then, alphabetical sortSince the search can be a regexp, it is possible that more than one symbol
matches exactly. In this case, we can't decide which to sort first, so we
fallback to alphabeticall sort.Explain this (new!) sorting heuristic in the documentation.
Reported-by: Jean Delvare
Signed-off-by: "Yann E. MORIN"
Cc: Jean Delvare
Cc: Michal Marek
Cc: Roland Eggner
Cc: Wang YanQing--
Changes v1->v2:
- drop the previous, complex heuristic in favour of a simpler heuristic
that is both easier to understand, *and* to maintain (Jean)
- explain sorting heuristic in the doc (Jean)
04 Jun, 2013
1 commit
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Ever since commit 45f035ab9b8f ("CONFIG_HOTPLUG should be always on"),
it has been basically impossible to build a kernel with CONFIG_HOTPLUG
turned off. Remove all the remaining references to it.Cc: Russell King
Cc: Doug Thompson
Cc: Bjorn Helgaas
Cc: Steven Whitehouse
Cc: Arnd Bergmann
Cc: Pavel Machek
Cc: "Rafael J. Wysocki"
Cc: Andrew Morton
Signed-off-by: Stephen Rothwell
Acked-by: Mauro Carvalho Chehab
Acked-by: Hans Verkuil
Signed-off-by: Greg Kroah-Hartman
07 May, 2013
2 commits
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Pull misc kbuild updates from Michal Marek:
"Non-critical kbuild changes:- make coccicheck improvements, but no new semantic patches this time
- make rpm improvements
- make tar-pkg change to include the architecture in the filename.
This is a deliberate incompatibility, but nobody has complained so
far and it is useful if you build for different architectures. It
also matches what the deb-pkg and rpm-pkg targets produce.- kbuild documentation fix"
* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
rpm-pkg: Remove pointless set -e statements
rpm-pkg: Always regenerate the specfile
rpm-pkg: Do not write to the parent directory
rpm-pkg: Do not package the whole source directory
buildtar: Add ARCH to the archive name
Coccinelle: Fix patch output when coccicheck is used with M= and C=
Coccinelle: Add support to the SPFLAGS variable
Coccinelle: Cleanup the setting of the FLAGS and OPTIONS variables
Coccinelle: Restore coccicheck verbosity in ONLINE mode (C=1 or C=2)
scripts/package/Makefile: compare objtree with srctree instead of test KBUILD_OUTPUT
doc: change example to existing Makefile fragment
scripts/tags.sh: Add magic for OFFSET and DEFINE -
Pull kconfig updates from Michal Marek:
- use pkg-config to detect curses libraries
- clean up the way curses headers are searched
- Some randconfig fixes, of which one had to be reverted
- KCONFIG_SEED for randconfig debugging
- memuconfig memory leak plugged
- menuconfig > breadcrumbs > navigation
- xconfig compilation fix
- Other minor fixes* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kconfig: fix lists definition for C++
Revert "kconfig: fix randomising choice entries in presence of KCONFIG_ALLCONFIG"
kconfig: implement KCONFIG_PROBABILITY for randconfig
kconfig: allow specifying the seed for randconfig
kconfig: fix randomising choice entries in presence of KCONFIG_ALLCONFIG
kconfig: do not override symbols already set
kconfig: fix randconfig tristate detection
kconfig/lxdialog: rationalise the include paths where to find {.n}curses{,w}.h
menuconfig: Add "breadcrumbs" navigation aid
menuconfig: Fix memory leak introduced by jump keys feature
merge_config.sh: Avoid creating unnessary source softlinks
kconfig: optionally use pkg-config to detect ncurses libs
menuconfig: optionally use pkg-config to detect ncurses libs
25 Apr, 2013
2 commits
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Currently the odds to set each symbol is (rounded):
booleans: y: 50% n: 50%
tristates: y: 33% m: 33% n: 33%Introduce a KCONFIG_PROBABILITY environment variable to tweak the
probabilities (in percentage), as such:
KCONFIG_PROBABILITY y:n split y:m:n split
-----------------------------------------------------------------
[1] unset or empty 50 : 50 33 : 33 : 34
[2] N N : 100-N N/2 : N/2 : 100-N
N:M N+M : 100-(N+M) N : M : 100-(N+M)
N:M:L N : 100-N M : L : 100-(M+L)[1] The current behaviour is kept as default, for backward compatibility
[2] The solution initially implemented by Peter for Buildroot, see:
http://git.buildroot.org/buildroot/commit/?id=3435c1afb5Signed-off-by: Peter Korsgaard
[yann.morin.1998@free.fr: add to Documentation/]
Signed-off-by: "Yann E. MORIN" -
For reproducibility, it can be useful to be able to specify the
seed to use to seed the RNG.Add a new KCONFIG_SEED environment variable which can be set to
the seed to use:
$ make KCONFIG_SEED=42 randconfig
$ sha1sum .config
70a128c8dcc61303069e1be352cce64114dfcbca .config
$ make KCONFIG_SEED=42 randconfig
$ sha1sum .config
70a128c8dcc61303069e1be352cce64114dfcbca .configIt's very usefull for eg. debugging the kconfig parser.
Signed-off-by: "Yann E. MORIN"
08 Apr, 2013
2 commits
-
Signed-off-by: Paul Bolle
Acked-by: Rob Landley
Signed-off-by: Michal Marek -
The kbuild's ld-option function is broken because
the command
$(CC) /dev/null -c -o "$$TMPO"
does not create object file!I have used a relatively old mips gcc 3.4.6 cross-compiler
and a relatively new gcc 4.7.2 to check this fact
but the results are the same.EXAMPLE:
$ rm /tmp/1.o
$ mips-linux-gcc /dev/null -c -o /tmp/1.o
mips-linux-gcc: /dev/null: linker input file unused because linking not done
$ ls -la /tmp/1.o
ls: cannot access /tmp/1.o: No such file or directoryWe can easily fix the problem by adding
the '-x c' compiler option.EXAMPLE:
$ rm /tmp/1.o
$ mips-linux-gcc -x c /dev/null -c -o /tmp/1.o
$ ls -la /tmp/1.o
-rw-r--r-- 1 antony antony 778 Apr 2 20:40 /tmp/1.oAlso fix wrong ld-option example.
Signed-off-by: Antony Pavlov
Signed-off-by: Michal Marek
28 Feb, 2013
1 commit
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Pull kconfig changes from Michal Marek:
"I forgot to send a pull request in time for the v3.8-rc1 merge window,
so the list is a bit longer this time:- menuconfig enables extended colors in ncurses if the wide-character
version is used.- CONFIG_ prefix can be specified in the environment to make life
easier for people using kconfig multiple times in a single tree (no
functional change in the kernel kconfig usage).- kconfig aborts on OOM.
- inputboxes in menuconfig allow to move the cursor.
- menuconfig has Save/Load buttons now.
- xconfig build fix with new g++ and Qt3.
- nconfig color scheme fix and help text update.
- make oldconfig prints newlines when output is redirected.
- some other minor fixes."
* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: Fix missing '\n' for NEW symbols in yes "" | make oldconfig >conf.new
kconfig: nconf: rewrite labels of function keys line
kconfig: nconf: rewrite help texts
kconfig: fix a compiliation error when using make xconfig
nconf: function keys line, change background color for better readability
menuconfig: Get rid of the top-level entries for "Load an Alternate/Save an Alternate"
menuconfig: Add Save/Load buttons
kconfig:lxdialog: remove duplicate code
menuconfig:inputbox: support navigate input position
kconfig: document use of CONFIG_ environment variable
scripts/kconfig: ensure we use proper CONFIG_ prefix
merge_config.sh: Add option to specify output dir
Revert "kconfig-language: add to hints"
kconfig: Regenerate lexer
kconfig: Fix malloc handling in conf tools
kconfig: get CONFIG_ prefix from the environment
kconfig: add a function to get the CONFIG_ prefix
kconfig: remove CONFIG_ from string constants
menuconfig: fix extended colors ncurses support