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2015-09-09Merge branch 'kconfig' of ↵Linus Torvalds7-207/+211
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kconfig updates from Michal Marek: - kconfig warns about junk characters in Kconfig files - merge_config.sh error handling - small cleanup * 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: merge_config.sh: exit on missing input files kconfig: Regenerate shipped zconf.{hash,lex}.c files kconfig: warn of unhandled characters in Kconfig commands kconfig: Delete unnecessary checks before the function call "sym_calc_value"
2015-08-20merge_config.sh: exit on missing input filesSam Bobroff1-0/+4
Add a check for the existence of input files and exit (with failure) if they are missing. Without this additional check, missing files produce error messages but still result in an output file being generated and a successful exit code. Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com> Signed-off-by: Michal Marek <mmarek@suse.com>
2015-08-19kconfig: Regenerate shipped zconf.{hash,lex}.c filesAndreas Ruprecht2-191/+192
Update the shipped files generated by flex and gperf to support the explicit use of "---help---" and to emit warnings for unsupported characters on COMMAND tokens. As I could not find out which flex/gperf version was used to generate the previous version, I used flex 2.5.35 and gperf 3.0.4 from Ubuntu 14.04 - this also leads to the big number of changed lines in this patch. Signed-off-by: Andreas Ruprecht <andreas.ruprecht@fau.de> Reviewed-by: Ulf Magnusson <ulfalizer@gmail.com> Tested-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.com>
2015-08-19kconfig: warn of unhandled characters in Kconfig commandsAndreas Ruprecht2-9/+12
In Kconfig, definitions of options take the following form: "<COMMAND> <PARAM> <PARAM> ...". COMMANDs and PARAMs are treated slightly different by the underlying parser. While commit 2e0d737fc76f ("kconfig: don't silently ignore unhandled characters") introduced a warning for unsupported characters around PARAMs, it does not cover situations where a COMMAND has additional characters before it. This change makes Kconfig emit a warning if superfluous characters are found before COMMANDs. As the 'help' statement sometimes is written as '---help---', the '-' character would now also be regarded as unhandled and generate a warning. To avoid that, '-' is added to the list of allowed characters, and the token '---help---' is included in the zconf.gperf file. Reported-by: Valentin Rothberg <valentinrothberg@gmail.com> Signed-off-by: Andreas Ruprecht <andreas.ruprecht@fau.de> Reviewed-by: Ulf Magnusson <ulfalizer@gmail.com> Tested-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.com>
2015-08-19kconfig: Delete unnecessary checks before the function call "sym_calc_value"Markus Elfring2-7/+3
The sym_calc_value() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Michal Marek <mmarek@suse.com>
2015-08-12localmodconfig: Use Kbuild files tooRichard Weinberger1-1/+1
In kbuild it is allowed to define objects in files named "Makefile" and "Kbuild". Currently localmodconfig reads objects only from "Makefile"s and misses modules like nouveau. Link: http://lkml.kernel.org/r/1437948415-16290-1-git-send-email-richard@nod.at Cc: stable@vger.kernel.org Reported-and-tested-by: Leonidas Spyropoulos <artafinde@gmail.com> Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2015-07-03Merge branch 'kconfig' of ↵Linus Torvalds8-506/+666
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kconfig updates from Michal Marek: - kconfig conditions can use usual less/greater than comparisons - kconfig warns about stray characters in Kconfig files - bogus expression simplification removed - some minor fixes * 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kconfig: re-generate *.c_shipped files after previous change kconfig: allow use of relations other than (in)equality kconfig: don't silently ignore unhandled characters kconfig: Wrap long "make help" text lines scripts/kconfig/Makefile: Cosmetic fixes scripts/kconfig/Makefile: Fix spelling of Qt Kconfig: Remove bad inference rules expr_eliminate_dups2()
2015-06-16kconfig: add xenconfig defconfig helperLuis R. Rodriguez1-0/+5
This lets you build a kernel which can support xen dom0 or xen guests on i386, x86-64 and arm64 by just using: make xenconfig You can start from an allnoconfig and then switch to xenconfig. This also splits out the options which are available currently to be built with x86 and 'make ARCH=arm64' under a shared config. Technically xen supports a dom0 kernel and also a guest kernel configuration but upon review with the xen team since we don't have many dom0 options its best to just combine these two into one. A few generic notes: we enable both of these: CONFIG_INET=y CONFIG_BINFMT_ELF=y although technically not required given you likely will end up with a pretty useless system otherwise. A few architectural differences worth noting: $ make allnoconfig; make xenconfig > /dev/null ; \ grep XEN .config > 64-bit-config $ make ARCH=i386 allnoconfig; make ARCH=i386 xenconfig > /dev/null; \ grep XEN .config > 32-bit-config $ make ARCH=arm64 allnoconfig; make ARCH=arm64 xenconfig > /dev/null; \ grep XEN .config > arm64-config Since the options are already split up with a generic config and architecture specific configs you anything on the x86 configs are known to only work right now on x86. For instance arm64 doesn't support MEMORY_HOTPLUG yet as such although we try to enabe it generically arm64 doesn't have it yet, so we leave the xen specific kconfig option XEN_BALLOON_MEMORY_HOTPLUG on x86's config file to set expecations correctly. Then on x86 we have differences between i386 and x86-64. The difference between 64-bit-config and 32-bit-config is you don't get XEN_MCE_LOG as this is only supported on 64-bit. You also do not get on i386 XEN_BALLOON_MEMORY_HOTPLUG, there does not seem to be any technical reasons to not allow this but I gave up after a few attempts. Cc: Josh Triplett <josh@joshtriplett.org> Cc: Borislav Petkov <bp@suse.de> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Michal Marek <mmarek@suse.cz> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: penberg@kernel.org Cc: levinsasha928@gmail.com Cc: mtosatti@redhat.com Cc: fengguang.wu@intel.com Cc: David Vrabel <david.vrabel@citrix.com> Cc: Ian Campbell <Ian.Campbell@citrix.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: xen-devel@lists.xenproject.org Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Julien Grall <julien.grall@linaro.org> Acked-by: Michal Marek <mmarek@suse.cz> Acked-by: David Rientjes <rientjes@google.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2015-06-16kconfig: clarify kvmconfig is for kvmLuis R. Rodriguez1-1/+1
We'll be adding options for xen as well. Cc: Josh Triplett <josh@joshtriplett.org> Cc: Borislav Petkov <bp@suse.de> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Michal Marek <mmarek@suse.cz> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: penberg@kernel.org Cc: levinsasha928@gmail.com Cc: mtosatti@redhat.com Cc: fengguang.wu@intel.com Cc: David Vrabel <david.vrabel@citrix.com> Cc: Ian Campbell <Ian.Campbell@citrix.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: xen-devel@lists.xenproject.org Reviewed-by: Josh Triplett <josh@joshtriplett.org> Acked-by: David Rientjes <rientjes@google.com> Acked-by: Borislav Petkov <bp@suse.de> Acked-by: Michal Marek <mmarek@suse.cz> Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2015-06-15kconfig: re-generate *.c_shipped files after previous changeJan Beulich2-368/+447
Signed-off-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-06-15kconfig: allow use of relations other than (in)equalityJan Beulich5-11/+177
Over the years I found it desirable to be able to use all sorts of relations, not just (in)equality. And apparently I'm not the only one, as there's at least one example in the tree where the programmer assumed this would work (see DEBUG_UART_8250_WORD in arch/arm/Kconfig.debug). Another possible use would e.g. be to fold the two SMP/NR_CPUS prompts into one: SMP could be promptless, simply depending on NR_CPUS > 1. A (desirable) side effect of this change - resulting from numeric values now necessarily being compared as numbers rather than as strings - is that comparing hex values now works as expected: Other than int ones (which aren't allowed to have leading zeroes), zeroes following the 0x prefix made them compare unequal even if their values were equal. Signed-off-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-06-11kconfig: don't silently ignore unhandled charactersJan Beulich2-89/+113
At the very least we should tell people that what they wrote is not what the utility understands. Signed-off-by: Jan Beulich <jbeulich@suse.com> Acked-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-06-04kconfig: Wrap long "make help" text linesGeert Uytterhoeven1-2/+4
Some "make help" text lines extend beyond 80 characters. Wrap them at 79 characters. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-06-03scripts/kconfig/Makefile: Cosmetic fixesDiego Viola1-5/+5
Signed-off-by: Diego Viola <diego.viola@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-05-28scripts/kconfig/Makefile: Fix spelling of QtDiego Viola1-6/+6
Signed-off-by: Diego Viola <diego.viola@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-05-25Kconfig: Remove bad inference rules expr_eliminate_dups2()Martin Walch1-111/+0
expr_eliminate_dups2() in scripts/kconfig/expr.c applies two invalid inference rules: (FOO || BAR) && (!FOO && !BAR) -> n (FOO && BAR) || (!FOO || !BAR) -> y They would be correct in propositional logic, but this is a three-valued logic, and here it is wrong in that it changes semantics. It becomes immediately visible when assigning the value 1 to both, FOO and BAR: (FOO || BAR) && (!FOO && !BAR) -> min(max(1, 1), min(2-1, 2-1)) = min(1, 1) = 1 while n evaluates to 0 and (FOO && BAR) || (!FOO || !BAR) -> max(min(1, 1), max(2-1, 2-1)) = max(1, 1) = 1 with y evaluating to 2. Fix it by removing expr_eliminate_dups2() and the functions that have no use anywhere else: expr_extract_eq_and(), expr_extract_eq_or(), and expr_extract_eq() from scripts/kconfig/expr.c Currently the bug is not triggered in mainline, so this patch does not modify the configuration space there. To observe the bug consider this example: config MODULES def_bool y option modules config FOO def_tristate m config BAR def_tristate m config TEST1 def_tristate y depends on (FOO || BAR) && (!FOO && !BAR) if TEST1 = n comment "TEST1 broken" endif config TEST2 def_tristate y depends on (FOO && BAR) || (!FOO || !BAR) if TEST2 = y comment "TEST2 broken" endif config TEST3 def_tristate y depends on m && !m if TEST3 = n comment "TEST3 broken" endif TEST1, TEST2 and TEST3 should all evaluate to m, but without the patch, none of them does. It is probably not obvious that TEST3 is the same bug, but it becomes clear when considering what happens internally to the expression m && !m": First it expands to (m && MODULES) && !(m && MODULES), then it is transformed into (m && MODULES) && (!m || !MODULES), and finally due to the bug it is replaced with n. As a side effect, this patch reduces code size in expr.c by roughly 10% and slightly improves startup time for all configuration frontends. Signed-off-by: Martin Walch <walch.martin@web.de> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-04-09kconfig: Do not print status messages in make -s modeMichal Marek6-32/+62
Add an -s option to the various frontends and pass it when make -s is used. Also, use $(kecho) instead of @echo in the Makefile. Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-04-08kconfig: Simplify MakefileMichal Marek1-12/+8
Use a single rule for targets handled directly by the conf program. Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-03-24kbuild: add generic mergeconfig target, %.configMasahiro Yamada1-10/+9
"scripts/kconfig/merge_config.sh && make oldconfig" works well enough for merging local config fragments, but Kbuild currently has the entry points only for "kvmconfig" and "tinyconfig". This commit provides the generic target for mergeconfig, so we can manage our own config fragments easily: put "foo.config" in arch/$(SRCARCH)/configs/ or kernel/configs/, and then run "make foo.config". Now "make kvmconfig" is just a shorthand of "make kvm_guest.config". Likewise, "make tinyconfig" is equivalent to "make allnoconfig tiny.config". Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-03-24merge_config.sh: rename MAKE to RUNMAKEMasahiro Yamada1-3/+3
The variable "MAKE" is used to store the command name that has invoked the Makefile. (Actually, it is already set to "make" if you run this script from a Makefile.) In this script, however, it is used to determine if Make should be run or not. It is not what we usually expect. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-03-24merge_config.sh: improve indentationMasahiro Yamada1-8/+6
It is true that we do not want to move the code too far to the right, but something like below is not preferred: if [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then echo Value of $CFG is redefined by fragment $MERGE_FILE: echo Previous value: $PREV_VAL echo New value: $NEW_VAL echo elif [ "$WARNREDUN" = "true" ]; then echo Value of $CFG is redundant by fragment $MERGE_FILE: fi To fix this, call "continue" if the "grep" command fails to find the given CONFIG. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-03-24kbuild: mergeconfig: remove redundant $(objtree)Masahiro Yamada1-1/+1
Kbuild always runs in $(objtree). Actually, $(objtree) is always set to "." by the top-level Makefile. We can omit "-O $(objtree)" and "$(objtree)/". Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-03-24kbuild: mergeconfig: move an error check to merge_config.shMasahiro Yamada2-1/+5
Currently, "make tinyconfig" does not work with "-j" option. $ make mrproper $ make -j8 tinyconfig HOSTCC scripts/basic/fixdep HOSTCC scripts/kconfig/conf.o SHIPPED scripts/kconfig/zconf.tab.c SHIPPED scripts/kconfig/zconf.lex.c SHIPPED scripts/kconfig/zconf.hash.c HOSTCC scripts/kconfig/zconf.tab.o HOSTLD scripts/kconfig/conf scripts/kconfig/conf --allnoconfig Kconfig # # configuration written to .config # scripts/kconfig/Makefile:122: *** You need an existing .config for this target. Stop. make: *** [tinyconfig] Error 2 As shown above, "allnoconfig" has created the .config file before mergeconfig is called, but Make still raises a false alarm because of some sort of race condition. We can fix this issue by moving the error check to the shell script. Anyway, scripts/kconfig/merge_config.sh always requires an existing .config as a base file. It is reasonable to check its existence in the shell script. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-03-24kbuild: mergeconfig: fix "jobserver unavailable" warningMasahiro Yamada1-1/+1
If "make kvmconfig" is run with "-j" option, a warning message, "jobserver unavailable: using -j1. Add `+' to parent make rule.", is displayed. $ make -s defconfig *** Default configuration is based on 'x86_64_defconfig' # # configuration written to .config # $ make -j8 kvmconfig Using ./.config as base Merging ./arch/x86/configs/kvm_guest.config [ snip ] # # merged configuration written to ./.config (needs make) # make[2]: warning: jobserver unavailable: using -j1. Add `+' to parent make rule. scripts/kconfig/conf --oldconfig Kconfig [ snip ] # # configuration written to .config # Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-02-25kconfig: Remove unnecessary prototypes from headersMichal Marek7-48/+40
Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-02-25kconfig: Remove dead codeMichal Marek4-39/+0
Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-02-25kconfig: Get rid of the P() macro in headersMichal Marek2-47/+43
This was originally meant for dlopen()ing a potential kconfig shared library. The unused dlopen code has already been removed in commit 5a6f8d2b (kconfig: nuke LKC_DIRECT_LINK cruft), so let's remove the rest. The lkc_proto.h change was made with the following sed script: sed -r 's/^P\(([^,]*), *([^,]*), *(.*)\);/\2 \1\3;/' Plus some manual adjustments. Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-02-25kconfig: fix a misspelling in scripts/kconfig/merge_config.shMasahiro Yamada1-1/+1
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-01-27kconfig: use va_end to match corresponding va_startColin Ian King1-0/+1
Although on some systems va_end is a no-op, it is good practice to use va_end, especially since the manual states: "Each invocation of va_start() must be matched by a corresponding invocation of va_end() in the same function." Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-01-07merge_config.sh: Display usage if given too few argumentsOlof Johansson1-0/+5
Two or more arguments are always expected. Show usage and exit if given less. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-12-21Merge branch 'kbuild' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kbuild updates from Michal Marek: "Here are the kbuild changes for v3.19-rc1: - Cleanups and deduplication in the main Makefile and scripts/Makefile.* - Sort the output of *config targets in make help - Old <linux/version.h> is always removed to avoid a surprise during bisecting - Warning fix in kconfig" * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kbuild: remove redundant -rR flag of hdr-inst kbuild: Fix make help-<board series> on powerpc kbuild: Automatically remove stale <linux/version.h> file kconfig: Fix warning "‘jump’ may be used uninitialized" Makefile: sort list of defconfig targets in make help output kbuild: Remove duplicate $(cmd) definition in Makefile.clean kbuild: collect shorthands into scripts/Kbuild.include
2014-12-20Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes and cleanups from Ingo Molnar: "A kernel fix plus mostly tooling fixes, but also some tooling restructuring and cleanups" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits) perf: Fix building warning on ARM 32 perf symbols: Fix use after free in filename__read_build_id perf evlist: Use roundup_pow_of_two tools: Adopt roundup_pow_of_two perf tools: Make the mmap length autotuning more robust tools: Adopt rounddown_pow_of_two and deps tools: Adopt fls_long and deps tools: Move bitops.h from tools/perf/util to tools/ tools: Introduce asm-generic/bitops.h tools lib: Move asm-generic/bitops/find.h code to tools/include and tools/lib tools: Whitespace prep patches for moving bitops.h tools: Move code originally from asm-generic/atomic.h into tools/include/asm-generic/ tools: Move code originally from linux/log2.h to tools/include/linux/ tools: Move __ffs implementation to tools/include/asm-generic/bitops/__ffs.h perf evlist: Do not use hard coded value for a mmap_pages default perf trace: Let the perf_evlist__mmap autosize the number of pages to use perf evlist: Improve the strerror_mmap method perf evlist: Clarify sterror_mmap variable names perf evlist: Fixup brown paper bag on "hint" for --mmap-pages cmdline arg perf trace: Provide a better explanation when mmap fails ...
2014-12-09calloc/xcalloc: Fix argument orderArjun Sreedharan1-2/+2
The calloc() and xcalloc() functions takes @nmemb first and then @size. Fix all w/ pattern "calloc\s*(\s*sizeof". Signed-off-by: Arjun Sreedharan <arjun024@gmail.com> Cc: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1417866043-1877-1-git-send-email-arjun024@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-11-28kconfig: Fix warning "‘jump’ may be used uninitialized"Peter Kümmel1-2/+2
Warning: In file included from scripts/kconfig/zconf.tab.c:2537:0: scripts/kconfig/menu.c: In function ‘get_symbol_str’: scripts/kconfig/menu.c:590:18: warning: ‘jump’ may be used uninitialized in this function [-Wmaybe-uninitialized] jump->offset = strlen(r->s); Simplifies the test logic because (head && local) means (jump != 0) and makes GCC happy when checking if the jump pointer was initialized. Signed-off-by: Peter Kümmel <syntheticpp@gmx.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-11-20Replace mentions of "list_struct" to "list_head"Andrey Utkin1-3/+3
There's no such thing as "list_struct". Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-10-14Merge branch 'kbuild' of ↵Linus Torvalds4-35/+11
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kbuild changes from Michal Marek: - fix for handling dependencies of *-objs targets by Masahiro Yamada - lots of cleanups in the kbuild machinery, also by Masahiro - fixes for the kconfig build to use an UTF-8 capable ncurses library if possible and to build on not-so-standard installs - some more minor fixes * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kbuild: Do not reference *-n variables in the Makefile kbuild: simplify build, clean, modbuiltin shorthands kbuild: arm: Do not define "comma" twice kbuild: remove obj-n and lib-n handling kbuild: remove unnecessary variable initializaions kbuild: remove unnecessary "obj- := dummy.o" trick kbuild: handle C=... and M=... after entering into build directory kbuild: use $(Q) for sub-make target kbuild: fake the "Entering directory ..." message more simply kconfig/lxdialog: get ncurses CFLAGS with pkg-config kconfig: nconfig: fix multi-byte UTF handling kconfig: lxdialog: fix spelling kbuild: Make scripts executable kbuild: remove redundant clean-files from scripts/kconfig/Makefile kbuild: refactor script/kconfig/Makefile kbuild: handle the dependency of multi-objs hostprogs appropriately kbuild: handle multi-objs dependency appropriately
2014-09-23kconfig/lxdialog: get ncurses CFLAGS with pkg-configBjørn Forsman1-1/+5
This makes "make menuconfig" also work on systems where ncurses is not installed in a standard location (such as on NixOS). This patch changes ccflags() so that it tries pkg-config first, and only if pkg-config fails does it go back to the fallback/manual checks. This is the same algorithm that ldflags() already uses. Signed-off-by: Bjørn Forsman <bjorn.forsman@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-08-22kconfig: nconfig: fix multi-byte UTF handlingBrian Norris1-1/+2
Currently, Kconfig descriptions that use multi-byte UTF-8 characters (such as MTD_NAND_CAFE) will have their menu entries dropped from the 'make nconfig' ncurses menu, and all subsequent entries in the same window will be omitted. This seems to be due to the ncurses 'menu' library, which does not traditionally handle UTF-8 >8-bit characters properly. The ncursesw library ('w' is for "wide") is written to handle these UTF-8 characters, and is practically a drop-in replacement at the source level. Use it by default, if available. Link: https://bugzilla.kernel.org/show_bug.cgi?id=43067 Signed-off-by: Brian Norris <computersforpeace@gmail.com> Cc: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Martin Walch <walch.martin@web.de> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-08-22kconfig: lxdialog: fix spellingBrian Norris1-1/+1
Signed-off-by: Brian Norris <computersforpeace@gmail.com> Cc: "Yann E. MORIN" <yann.morin.1998@free.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-08-20kbuild: Make scripts executableMichal Marek2-0/+0
The Makefiles call the respective interpreter explicitly, but this makes it easier to use the scripts manually. Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-08-19kbuild: remove redundant clean-files from scripts/kconfig/MakefileMasahiro Yamada1-1/+0
Now mconf, qconf, gconf, nconf are always added to hostprogs-y. Files added to hostprogs-y are removed by "make clean". Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-08-19kbuild: refactor script/kconfig/MakefileMasahiro Yamada1-31/+3
Now it is harmless to add all host programs to hostprogs-y. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-08-09x86: Add "make tinyconfig" to configure the tiniest possible kernelJosh Triplett1-0/+5
Since commit 5d2acfc7b974bbd3858b4dd3f2cdc6362dd8843a ("kconfig: make allnoconfig disable options behind EMBEDDED and EXPERT") in 3.15-rc1, "make allnoconfig" disables every possible config option. However, a few configuration options (CC_OPTIMIZE_FOR_SIZE, OPTIMIZE_INLINING) produce a smaller kernel when turned on, and a few choices exist (compression, highmem, allocator) for which a non-default option produces a smaller kernel. Add a "tinyconfig" option, which starts from allnoconfig and then sets these options to configure the tiniest possible kernel. This provides a better baseline for embedded systems or efforts to reduce kernel size. Signed-off-by: Josh Triplett <josh@joshtriplett.org>
2014-08-09x86, platform, kconfig: move kvmconfig functionality to a helperJosh Triplett1-0/+14
The new mergeconfig helper makes it easier to add other partial configurations similar to kvmconfig. Architecture-independent portions of those partial configurations should go in kernel/configs/${name}.config, and architecture-dependent portions should go in arch/${arch}/configs/${name}.config. Based on a patch by Luis R. Rodriguez <mcgrof@suse.com>. Originally-Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Modified to make the helper name more general than just virtualization, support architecture-dependent and architecture-independent partial configurations, move the helper and kvmconfig to scripts/kconfig/Makefile, and factor out more of the common file path. Signed-off-by: Josh Triplett <josh@joshtriplett.org>
2014-06-13Merge branch 'misc' of ↵Linus Torvalds16-24/+18
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kbuild misc updates from Michal Marek: "This is the non-critical part of kbuild for v3.16-rc1: - make deb-pkg can do s390x and arm64 - new patterns in scripts/tags.sh - scripts/tags.sh skips userspace tools' sources (which sometimes have copies of kernel structures) and symlinks - improvements to the objdiff tool - two new coccinelle patches - other minor fixes" * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: scripts: objdiff: support directories for the augument of record command scripts: objdiff: fix a comment scripts: objdiff: change the extension of disassembly from .o to .dis scripts: objdiff: improve path flexibility for record command scripts: objdiff: remove unnecessary code scripts: objdiff: direct error messages to stderr scripts: objdiff: get the path to .tmp_objdiff more simply deb-pkg: Add automatic support for s390x architecture coccicheck: Add unneeded return variable test kbuild: Fix a typo in documentation kbuild: trivial - use tabs for code indent where possible kbuild: trivial - remove trailing empty lines coccinelle: Check for missing NULL terminators in of_device_id tables scripts/tags.sh: ignore symlink'ed source files scripts/tags.sh: add regular expression replacement pattern for memcg builddeb: add arm64 in the supported architectures builddeb: use $OBJCOPY variable instead of objcopy scripts/tags.sh: ignore code of user space tools scripts/tags.sh: add pattern for DEFINE_HASHTABLE .gitignore: ignore Module.symvers in all directories
2014-06-10kbuild: trivial - use tabs for code indent where possibleMasahiro Yamada12-18/+18
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10kbuild: create include/config directory in scripts/kconfig/MakefileMasahiro Yamada1-2/+2
The directory include/config is used only for silentoldconfig, localmodconfig, localyesconfig. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10kbuild: trivial - remove trailing empty linesMasahiro Yamada5-6/+0
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-04-30kbuild: trivial - remove trailing spacesMasahiro Yamada1-1/+1
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-04-08kconfig: make allnoconfig disable options behind EMBEDDED and EXPERTJosh Triplett6-6/+20
"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>
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