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2016-11-16Kconfig: Introduce the "imply" keywordNicolas Pitre1-0/+29
The "imply" keyword is a weak version of "select" where the target config symbol can still be turned off, avoiding those pitfalls that come with the "select" keyword. This is useful e.g. with multiple drivers that want to indicate their ability to hook into a secondary subsystem while allowing the user to configure that subsystem out without also having to unset these drivers. Currently, the same effect can almost be achieved with: config DRIVER_A tristate config DRIVER_B tristate config DRIVER_C tristate config DRIVER_D tristate [...] config SUBSYSTEM_X tristate default DRIVER_A || DRIVER_B || DRIVER_C || DRIVER_D || [...] This is unwieldy to maintain especially with a large number of drivers. Furthermore, there is no easy way to restrict the choice for SUBSYSTEM_X to y or n, excluding m, when some drivers are built-in. The "select" keyword allows for excluding m, but it excludes n as well. Hence this "imply" keyword. The above becomes: config DRIVER_A tristate imply SUBSYSTEM_X config DRIVER_B tristate imply SUBSYSTEM_X [...] config SUBSYSTEM_X tristate This is much cleaner, and way more flexible than "select". SUBSYSTEM_X can still be configured out, and it can be set as a module when none of the drivers are configured in or all of them are modular. Signed-off-by: Nicolas Pitre <nico@linaro.org> Acked-by: Richard Cochran <richardcochran@gmail.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: John Stultz <john.stultz@linaro.org> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Cc: Paul Bolle <pebolle@tiscali.nl> Cc: linux-kbuild@vger.kernel.org Cc: netdev@vger.kernel.org Cc: Michal Marek <mmarek@suse.com> Cc: Edward Cree <ecree@solarflare.com> Link: http://lkml.kernel.org/r/1478841010-28605-2-git-send-email-nicolas.pitre@linaro.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-10-14Merge branch 'kbuild' of ↵Linus Torvalds1-0/+16
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 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 ...
2016-09-09kbuild: add arch specific post-link MakefileNicholas Piggin1-0/+16
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 <npiggin@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.com>
2016-08-18kconfig-language: improve menuconfig usage descriptionEugeniu Rosca1-1/+38
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_ARM To avoid future occurrences of those, improve the menuconfig syntax description. Signed-off-by: Eugeniu Rosca <rosca.eugeniu@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-07-07kbuild, x86: Track generated headers with generated-yJames Hogan1-0/+14
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 <fengguang.wu@intel.com> Signed-off-by: James Hogan <james.hogan@imgtec.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-kbuild@vger.kernel.org Cc: linux-doc@vger.kernel.org Cc: Michal Marek <mmarek@suse.com> Link: http://lkml.kernel.org/r/1466808144-23209-2-git-send-email-james.hogan@imgtec.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-05-10kconfig-language: elaborate on the type of a choiceDirk Gouders1-6/+11
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 <dirk@gouders.net> Signed-off-by: Michal Marek <mmarek@suse.com>
2016-05-10kconfig-language: fix comment on dependency-generated menu structures.Dirk Gouders1-3/+2
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 <dirk@gouders.net> Signed-off-by: Michal Marek <mmarek@suse.com>
2015-10-08kbuild: document recursive dependency limitation / resolutionLuis R. Rodriguez4-0/+314
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-sat Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: James Bottomley <jbottomley@odin.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Paul Bolle <pebolle@tiscali.nl> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Takashi Iwai <tiwai@suse.de> Cc: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Mate Soos <soos.mate@gmail.com> Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: Michal Marek <mmarek@suse.com>
2015-08-07modsign: Allow password to be specified for signing keyDavid Woodhouse1-0/+5
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 <David.Woodhouse@intel.com> Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
2015-07-06kbuild: Allow arch Makefiles to override {cpp,ld,c}flagsMichal Marek1-0/+8
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 <Vineet.Gupta1@synopsys.com> Cc: stable@vger.kernel.org # 3.16+ Signed-off-by: Michal Marek <mmarek@suse.com>
2015-06-22kbuild : Fix documentation of INSTALL_HDR_PATHAnish Bhatt1-3/+6
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 <anish@chelsio.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-06-08kbuild: edit explanation of clean-files variableJeffrey Rogers1-2/+2
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 <jeffreydavidrogers@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-02-19Merge branch 'misc' of ↵Linus Torvalds1-6/+5
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 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
2015-01-09kbuild: allow cc-ifversion to have the argument for false conditionMasahiro Yamada1-2/+3
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 <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-01-09kbuild: do not add $(call ...) to invoke cc-version or cc-fullversionMasahiro Yamada1-2/+2
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 <yamada.m@jp.panasonic.com> Acked-by: Helge Deller <deller@gmx.de> [parisc] Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-01-08kbuild: Update documentation of clean-files and clean-dirsMichal Marek1-6/+5
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 <mmarek@suse.cz>
2014-08-19Documentation: kbuild: Improve grammarGeert Uytterhoeven1-28/+28
- singular versus plural, - "by" versus "of", - missing "if", "it", "the", - consistent use of "xxx-specific" versus "xxx specific". Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-08-19Documentation: kbuild: Remove obsolete dtc_cpp sectionGeert Uytterhoeven1-23/+0
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 <geert@linux-m68k.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-08-19Documentation: kbuild: Improve if_changed documentationGeert Uytterhoeven1-3/+3
- 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 <geert@linux-m68k.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-08-19Documentation: kbuild: Remove obsolete include/asm symlink stepGeert Uytterhoeven1-5/+4
As of commit f7f16b7799ed68654850ab340ef812895aebcf4c ("kbuild: drop include/asm"), the include/asm symlink is no longer created. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-08-14Merge branch 'misc' of ↵Linus Torvalds2-0/+49
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull misc kbuild updates from Michal Marek: "This is the non-critical part of kbuild 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
2014-08-14Merge branch 'kbuild' of ↵Linus Torvalds1-31/+8
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 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-)
2014-08-05Documentation: headers_install.txt is part of kbuildYann Droneaud2-0/+49
'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 <kirill@shutemov.name> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Rob Landley <rob@landley.net> Signed-off-by: Yann Droneaud <ydroneaud@opteya.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-07-16kbuild: drop shared library support from Makefile.hostMasahiro Yamada1-31/+8
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 <yamada.m@jp.panasonic.com> Suggested-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-18kbuild: fix a typo in a kbuild documentMasahiro Yamada1-1/+1
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10kbuild: Fix a typo in documentationWarren Turkal1-1/+1
Signed-off-by: Warren Turkal <wt@penguintechs.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-04-07kconfig: make allnoconfig disable options behind EMBEDDED and EXPERTJosh Triplett1-0/+4
"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 <josh@joshtriplett.org> Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-10-08Documentation/kbuild/kconfig.txt: 'make listnewconfig' replaces: yes "" | ↵Regid Ichira1-9/+2
make oldconfig Signed-off-by: Regid Ichira <regid23@nt1.in> Acked-by: Rob Landley <rob@landley.net> [yann.morin.1998@free.fr: fix trailing whitespace, commit subject] Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
2013-09-05kconfig: do not allow more than one symbol to have 'option modules'Yann E. MORIN1-0/+1
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 modules Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2013-07-23Merge branch 'yem-kconfig-rc-fixes' of ↵Michal Marek1-5/+3
git://gitorious.org/linux-kconfig/linux-kconfig into kbuild/kconfig
2013-07-16Documentation/kconfig: more concise and straightforward search explanationYann E. MORIN1-5/+3
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 <jdelvare@suse.de> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Jean Delvare <jdelvare@suse.de> Reviewed-by: Jean Delvare <jdelvare@suse.de>
2013-07-10Merge branch 'kconfig' of ↵Linus Torvalds1-0/+13
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 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
2013-06-24kconfig: sort found symbols by relevanceYann E. MORIN1-0/+13
When searching for symbols, return the symbols sorted by relevance. Sorting is done as thus: - first, symbols that match exactly - then, alphabetical sort Since 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 <jdelvare@suse.de> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Jean Delvare <jdelvare@suse.de> Cc: Michal Marek <mmarek@suse.cz> Cc: Roland Eggner <edvx1@systemanalysen.net> Cc: Wang YanQing <udknight@gmail.com> -- 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)
2013-06-03Finally eradicate CONFIG_HOTPLUGStephen Rothwell1-1/+1
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 <linux@arm.linux.org.uk> Cc: Doug Thompson <dougthompson@xmission.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Pavel Machek <pavel@ucw.cz> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-07Merge branch 'misc' of ↵Linus Torvalds1-2/+3
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 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
2013-05-07Merge branch 'kconfig' of ↵Linus Torvalds1-0/+36
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 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
2013-04-25kconfig: implement KCONFIG_PROBABILITY for randconfigYann E. MORIN1-0/+27
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=3435c1afb5 Signed-off-by: Peter Korsgaard <jacmet@uclibc.org> [yann.morin.1998@free.fr: add to Documentation/] Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
2013-04-25kconfig: allow specifying the seed for randconfigYann E. MORIN1-0/+9
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 .config It's very usefull for eg. debugging the kconfig parser. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
2013-04-08doc: change example to existing Makefile fragmentPaul Bolle1-2/+3
Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Acked-by: Rob Landley <rob@landley.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
2013-04-08kbuild: fix ld-option functionAntony Pavlov1-1/+1
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 directory We 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.o Also fix wrong ld-option example. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2013-02-27Merge branch 'kconfig' of ↵Linus Torvalds2-23/+6
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 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
2013-02-25Merge branch 'kbuild/rc-fixes' into kbuild/kconfigMichal Marek2-8/+9
There is one kconfig fix in the rc-fixes branch that I forgot to submit for 3.8, so let's add it to the kconfig branch for 3.9-rc1.
2013-02-08kbuild: create a rule to run the pre-processor on *.dts filesStephen Warren1-0/+23
Create cmd_dtc_cpp to run the C pre-processor on *.dts file before passing them to dtc for final compilation. This allows the use of #define and #include within the .dts file. Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Michal Marek <mmarek@suse.cz> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-12-25kconfig: document use of CONFIG_ environment variableYann E. MORIN1-0/+6
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
2012-12-13Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial branch from Jiri Kosina: "Usual stuff -- comment/printk typo fixes, documentation updates, dead code elimination." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) HOWTO: fix double words typo x86 mtrr: fix comment typo in mtrr_bp_init propagate name change to comments in kernel source doc: Update the name of profiling based on sysfs treewide: Fix typos in various drivers treewide: Fix typos in various Kconfig wireless: mwifiex: Fix typo in wireless/mwifiex driver messages: i2o: Fix typo in messages/i2o scripts/kernel-doc: check that non-void fcts describe their return value Kernel-doc: Convention: Use a "Return" section to describe return values radeon: Fix typo and copy/paste error in comments doc: Remove unnecessary declarations from Documentation/accounting/getdelays.c various: Fix spelling of "asynchronous" in comments. Fix misspellings of "whether" in comments. eisa: Fix spelling of "asynchronous". various: Fix spelling of "registered" in comments. doc: fix quite a few typos within Documentation target: iscsi: fix comment typos in target/iscsi drivers treewide: fix typo of "suport" in various comments and Kconfig treewide: fix typo of "suppport" in various comments ...
2012-12-06Revert "kconfig-language: add to hints"Yann E. MORIN1-23/+0
This reverts commit 64b81ed7fb1e45c914317b20316f32827bc6444b. As Martin says about this paragraph: However, I can not reproduce this. The attached file contains both cases. [...] AFAICS, both versions behave equivalently. I suggest changing the documentation accordingly. [in http://marc.info/?l=linux-kbuild&m=134987006202410&w=2] Reported-by: Martin Walch <walch.martin@gmx.de> Cc: Martin Walch <walch.martin@gmx.de> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-11-30kbuild: centralize .dts->.dtb ruleStephen Warren1-7/+8
All architectures that use cmd_dtc do so in almost the same way. Create a central build rule to avoid duplication. The one difference is that most current uses of dtc build $(obj)/%.dtb from $(src)/dts/%.dts rather than building the .dtb in the same directory as the .dts file. This difference will be eliminated arch-by-arch in future patches. MIPS is the exception here; it already uses the exact same rule as the new common rule, so the duplicate is removed in this patch to avoid any conflict. arch/mips changes courtesy of Ralf Baechle. Update Documentation/kbuild to remove the explicit call to cmd_dtc from the example, now that the rule exists in a centralized location. Cc: Arnd Bergmann <arnd@arndb.de> Cc: linux-arm-kernel@lists.infradead.org Cc: Olof Johansson <olof@lixom.net> Cc: Russell King <linux@arm.linux.org.uk> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: linux@lists.openrisc.net Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: linux-c6x-dev@linux-c6x.org Cc: Mark Salter <msalter@redhat.com> Cc: Michal Simek <monstr@monstr.eu> Cc: microblaze-uclinux@itee.uq.edu.au Cc: Chris Zankel <chris@zankel.net> Cc: linux-xtensa@linux-xtensa.org Cc: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-11-19doc: fix quite a few typos within DocumentationMasanari Iida1-1/+1
Correct spelling typo in Documentations Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-10-02UAPI: Remove the objhdr-y export listDavid Howells1-4/+4
Remove the objhdr-y export list as it is no longer used. genhdr-y should be used instead. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
2012-05-28Merge branch 'kconfig' of ↵Linus Torvalds1-9/+9
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kconfig changes from Michal Marek: - Error handling for make KCONFIG_ALLCONFIG=<...> all*config plus a fix for a bug that was exposed by this - Fix for the script/config utility. * 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: scripts/config: properly report and set string options kbuild: all{no,yes,mod,def,rand}config only read files when instructed to. kconfig: Add error handling to KCONFIG_ALLCONFIG
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