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* arm, cris, mips, sparc, powerpc, um, xtensa: fix build with bash 4.0Sam Ravnborg2009-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Albin Tonnerre <albin.tonnerre@free-electrons.com> reported: Bash 4 filters out variables which contain a dot in them. This happends to be the case of CPPFLAGS_vmlinux.lds. This is rather unfortunate, as it now causes build failures when using SHELL=/bin/bash to compile, or when bash happens to be used by make (eg when it's /bin/sh) Remove the common definition of CPPFLAGS_vmlinux.lds by pushing relevant stuff to either Makefile.build or the arch specific kernel/Makefile where we build the linker script. This is also nice cleanup as we move the information out where it is used. Notes for the different architectures touched: arm - we use an already exported symbol cris - we use a config symbol aleady available [Not build tested] mips - the jiffies complexity has moved to vmlinux.lds.S where we need it. Added a few variables to CPPFLAGS - they are only used by the linker script. [Not build tested] powerpc - removed assignment that is not needed [not build tested] sparc - simplified it using $(BITS) um - introduced a few new exported variables to deal with this xtensa - added options to CPP invocation [not build tested] Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Chris Zankel <chris@zankel.net> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: add static to prototypesTrevor Keith2009-09-20
| | | | | | | | | Warnings found via gcc -Wmissing-prototypes. Signed-off-by: Trevor Keith <tsrk@tsrk.net> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: fail build if recordmcount.pl failsAndi Kleen2009-09-20
| | | | | | | | | When this script fails the build should fail too. Otherwise there are mysterious build failures later. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: echo the record_mcount commandAndi Kleen2009-09-20
| | | | | | | | | I had some problems with record_mcount in the Makefile and it was hard to track down. Echo it by default to make it easier to diagnose. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* gconfig: disable "typeahead find" search in treeviewsDiego Elio 'Flameeyes' Pettenò2009-09-20
| | | | | | | | | | | | | | | | When typeahead find is enabled, using 'y', 'n' and 'm' to change the status of the configuration items will also start up the search system, making you jump around the configuration. Disabling the enable_search property does not mean that search is not possible, it only disables the typeahead; to execute a search in the treeview, you can just call it up explicitly (i.e.: on most systems that will be Ctrl-f). Signed-off-by: Diego Elio 'Flameeyes' Pettenò <flameeyes@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: fix cc1 options check to ensure we do not use -fPIC when compilingJory A. Pratt2009-09-20
| | | | | | | | | | | | | | | | | | | The arch/*/boot/Makefile use cc-options to check for GCC command options and cc-options use the hardened specs when checking for GCC command options. When -fPIE is pass to cc1 it can't use -ffreestanding or -fno-toplevel-reorder. Then it fail to build stuff with -ffreestanding and -fno-toplevel-reorder. Thanks to Fredric Johansson for finding the main problem behind a failed build using a hardened toolchain. Signed-off-by: Magnus Granberg <zorry@ume.nu> Signed-off-by: Jory A. Pratt <anarchy@gentoo.org> Cc: Fredric Johansson <johansson_fredric@hotmail.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: <stable@kernel.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* checkincludes.pl: add option to remove duplicates in placeLuis R. Rodriguez2009-09-20
| | | | | | | | | | checkincludes.pl is more useful if it actually removed the lines. This adds support for that with -r. [akpm@linux-foundation.org: improve usage message] Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* markup_oops: use modinfo to avoid confusion with underscored module namesOzan Çaglayan2009-09-20
| | | | | | | | | | | | When EIP is at a module having an underscore in its name, the current code fails to find it because the module filenames has '-' instead of '_'. Use modinfo for a better path finding. Signed-off-by: Ozan Çaglayan <ozan@pardus.org.tr> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Cc: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* checkincludes.pl: provide usage helperLuis R. Rodriguez2009-09-20
| | | | | | Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* checkincludes.pl: close file as soon as we're done with itLuis R. Rodriguez2009-09-20
| | | | | | Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* ctags: usability fixStefani Seibold2009-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | The tag file generated by the tags.sh script has some issue. First: The identifier-list miss the DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL special handling, which can result in a wrong tag, not to jump to the right variable definition or function implementation. Second: It makes no real sense to include function prototypes and external and forward variable declarations, because jumping to a tag will sometimes go to this and not to the real definition and implementation. The information about the declaration is still there at the definition and implementation place. So this patch make it lot easier to navigate through the kernel source tree using vi. Signed-off-by: Stefani Seibold <stefani@seibold.net> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: introduce ld-optionSam Ravnborg2009-09-20
| | | | | | | | | | | ld-option is used to check if $(LD) supports a specific option. Based on patch from Andi Kleen. Cc: Andi Kleen <ak@linux.intel.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> First use is to check if option -X is supported (upcoming patch). Theis is ne
* kbuild: rename ld-option to cc-ldoptionSam Ravnborg2009-09-20
| | | | | | | | | ld-option is misnamed as it test options to gcc, not to ld. Renamed it to reflect this. Cc: Andi Kleen <andi@firstfloor.org> Cc: Roland McGrath <roland@redhat.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kconfig: make use of menu_get_ext_help in gconfigCheng Renquan2009-09-20
| | | | | | | | | Futhermore, gconfig interface lack the "search a symbol" function, do later. Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> [sam: fix SEGV in gconfig] Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kconfig: make use of menu_get_ext_help in "make config"Cheng Renquan2009-09-20
| | | | | | Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kconfig: make use of menu_get_ext_help in qconfigCheng Renquan2009-09-20
| | | | | | Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kconfig: make use of menu_get_ext_help in menuconfigCheng Renquan2009-09-20
| | | | | | | | | The removed functions are moved into menu.c for sharing with gconfig & xconfig & config. Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kconfig: add menu_get_ext_help function to display more informationCheng Renquan2009-09-20
| | | | | | | | | | | | | The three functions are moved from mconf.c, then they can be shared in all menuconfig & gconfig & xconfig & config. +void menu_get_ext_help(struct menu *menu, struct gstr *help) +static void get_prompt_str(struct gstr *r, struct property *prop) +void get_symbol_str(struct gstr *r, struct symbol *sym) Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kconfig: add symbol value to help find the real dependCheng Renquan2009-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes when configuring need to disable some unused item, but the item is selected by many other items, it's hard to find the real dependency which selected it, This patch add every symbol's value accompanied to make it possible to find the real dependency easily. An example is CONFIG_RFKILL, ---------------------- RF switch subsystem support ---------------------- | CONFIG_RFKILL: | | | | Say Y here if you want to have control over RF switches | | found on many WiFi and Bluetooth cards. | | | | To compile this driver as a module, choose M here: the | | module will be called rfkill. | | | | Symbol: RFKILL [=m] | | Prompt: RF switch subsystem support | | Defined at net/rfkill/Kconfig:4 | | Depends on: NET [=y] | | Location: | | -> Networking support (NET [=y]) | | Selected by: IWLCORE [=n] && NETDEVICES [=y] && !S390 [=S390] && PC | | | ----------------------------------------------------------------( 99%)--- Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kernel-doc: allow multi-line declaration purpose descriptionsJohannes Weiner2009-09-18
| | | | | | | | | | | | | | | | | | | | Allow the short description after symbol name and dash in a kernel-doc comment to span multiple lines, e.g. like this: /** * unmap_mapping_range - unmap the portion of all mmaps in the * specified address_space corresponding to the specified * page range in the underlying file. * @mapping: the address space containing mmaps to be unmapped. * ... */ The short description ends with a parameter description, an empty line or the end of the comment block. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sparc: Kill PROM console driver.David S. Miller2009-09-15
| | | | | | | | | | | | | | | | Many years ago when this driver was written, it had a use, but these days it's nothing but trouble and distributions should not enable it in any situation. Pretty much every console device a sparc machine could see has a bonafide real driver, making the PROM console hack unnecessary. If any new device shows up, we should write a driver instead of depending upon this crutch to save us. We've been able to take care of this even when no chip documentation exists (sunxvr500, sunxvr2500) so there are no excuses. Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-linus' of ↵Linus Torvalds2009-09-15
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (46 commits) powerpc64: convert to dynamic percpu allocator sparc64: use embedding percpu first chunk allocator percpu: kill lpage first chunk allocator x86,percpu: use embedding for 64bit NUMA and page for 32bit NUMA percpu: update embedding first chunk allocator to handle sparse units percpu: use group information to allocate vmap areas sparsely vmalloc: implement pcpu_get_vm_areas() vmalloc: separate out insert_vmalloc_vm() percpu: add chunk->base_addr percpu: add pcpu_unit_offsets[] percpu: introduce pcpu_alloc_info and pcpu_group_info percpu: move pcpu_lpage_build_unit_map() and pcpul_lpage_dump_cfg() upward percpu: add @align to pcpu_fc_alloc_fn_t percpu: make @dyn_size mandatory for pcpu_setup_first_chunk() percpu: drop @static_size from first chunk allocators percpu: generalize first chunk allocator selection percpu: build first chunk allocators selectively percpu: rename 4k first chunk allocator to page percpu: improve boot messages percpu: fix pcpu_reclaim() locking ... Fix trivial conflict as by Tejun Heo in kernel/sched.c
| * Merge branch 'percpu-for-linus' into percpu-for-nextTejun Heo2009-08-14
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/sparc/kernel/smp_64.c arch/x86/kernel/cpu/perf_counter.c arch/x86/kernel/setup_percpu.c drivers/cpufreq/cpufreq_ondemand.c mm/percpu.c Conflicts in core and arch percpu codes are mostly from commit ed78e1e078dd44249f88b1dd8c76dafb39567161 which substituted many num_possible_cpus() with nr_cpu_ids. As for-next branch has moved all the first chunk allocators into mm/percpu.c, the changes are moved from arch code to mm/percpu.c. Signed-off-by: Tejun Heo <tj@kernel.org>
| * \ Merge branch 'master' into for-nextTejun Heo2009-07-03
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull linus#master to merge PER_CPU_DEF_ATTRIBUTES and alpha build fix changes. As alpha in percpu tree uses 'weak' attribute instead of inline assembly, there's no need for __used attribute. Conflicts: arch/alpha/include/asm/percpu.h arch/mn10300/kernel/vmlinux.lds.S include/linux/percpu-defs.h
| * | | linker script: throw away .discard sectionTejun Heo2009-06-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | x86 throws away .discard section but no other archs do. Also, .discard is not thrown away while linking modules. Make every arch and module linking throw it away. This will be used to define dummy variables for percpu declarations and definitions. This patch is based on Ivan Kokshaysky's alpha percpu patch. [ Impact: always throw away everything in .discard ] Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Cc: Russell King <linux@arm.linux.org.uk> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Bryan Wu <cooloney@kernel.org> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Tony Luck <tony.luck@intel.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: David S. Miller <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Chris Zankel <chris@zankel.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Ingo Molnar <mingo@elte.hu>
* | | | Merge branch 'for-linus' of ↵Linus Torvalds2009-09-14
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-kconfig * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-kconfig: kconfig: add missing dependency of conf to localyesconfig kconfig: test if a .config already exists kconfig: make local .config default for streamline_config kconfig: test for /boot/config-uname after /proc/config.gz in localconfig kconfig: unset IKCONFIG_PROC and clean up nesting kconfig: search for a config to base the local(mod|yes)config on kconfig: keep config.gz around even if CONFIG_IKCONFIG_PROC is not set kconfig: have extract-ikconfig read ELF files kconfig: add check if end exists in extract-ikconfig kconfig: enable CONFIG_IKCONFIG from streamline_config.pl kconfig: do not warn about modules built in kconfig: streamline_config.pl do not stop with no depends kconfig: add make localyesconfig option kconfig: make localmodconfig to run streamline_config.pl kconfig: add streamline_config.pl to scripts
| * | | | kconfig: add missing dependency of conf to localyesconfigSteven Rostedt2009-08-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's a dependency missing. $ make localyesconfig HOSTCC scripts/basic/fixdep HOSTCC scripts/basic/docproc HOSTCC scripts/basic/hash using config: '/boot/config-2.6.27.25-78.2.56.fc9.x86_64' /bin/sh: line 8: scripts/kconfig/conf: No such file or directory make[1]: *** [localyesconfig] Error 127 make: *** [localyesconfig] Error 2 Thus the script failed to run. But the sed command that converts the '=m' to '=y' still ran. This gives us a distro config with all modules converted to built in! The missing dependency was for conf for localyesconfig. This dependency was already set for localmodconfig. Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * | | | kconfig: test if a .config already existsSteven Rostedt2009-08-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If one were to run localmodconfig or localyesconfig without having a .config already in the file, then the end of the process would give a warning when it tries to move the old .config to .config.old. This patch adds a test to check if .config exists and avoid the moves if it does not. [ Impact: remove warning after make localmodconfig ] Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * | | | kconfig: make local .config default for streamline_configSteven Rostedt2009-08-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As Andi Kleen pointed out, most people would expect that the local .config file to be based for a streamline config. This patch changes the order of searching for a config file to consider the .config in the local directory first. Reported-by: Andi Kleen <andi@firstfloor.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * | | | kconfig: test for /boot/config-uname after /proc/config.gz in localconfigSteven Rostedt2009-08-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many distros put their config in /boot/config-`uname -r`, add a check for that right after /proc/config.gz Reported-by: Alan Jenkins <sourcejedi.lkml@googlemail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * | | | kconfig: unset IKCONFIG_PROC and clean up nestingSteven Rostedt2009-08-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Due to cut and paste error IKCONFIG was both set and cleared. It was suppose to be IKCONFIG_PROC to be cleared. Also cleaned up if nesting. Reported-by: Alan Jenkins <sourcejedi.lkml@googlemail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * | | | kconfig: search for a config to base the local(mod|yes)config onSteven Rostedt2009-08-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of using the .config in the local directory. This patch changes streamline_config.pl to search various locations for a config. Here's the list and order of search: /proc/config.gz /boot/vmlinuz-`uname -r` vmlinux # local to the directory /lib/modules/`uname -r`/kernel/kernel/configs.ko kernel/configs.ko kernel/configs.o .config Once it finds a file that contains a config (it checks if the binary objects have configs first) it then uses it to create the .config with minimum modules needed. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * | | | kconfig: have extract-ikconfig read ELF filesSteven Rostedt2009-08-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It would be nice to use extract-ikconfig to find the congfig.gz in either vmlinux (not vmlinuz) or configs.ko. This patch changes the script to also be able to read ELF files directly. [ Impact: find config.gz in vmlinux and configs.ko ] Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * | | | kconfig: add check if end exists in extract-ikconfigSteven Rostedt2009-08-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Both start and end should be tested for existence before continuing to parse the config.gz file. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * | | | kconfig: enable CONFIG_IKCONFIG from streamline_config.plSteven Rostedt2009-08-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ingo Molnar suggested that the streamline_config.pl should enable CONFIG_IKCONFIG to keep the current config in the kernel. Then we can use scripts/extract-ikconfig to find the current modules. This patch changes streamline_config.pl to check if CONFIG_IKCONFIG is not set, and if it is not, it enables it to be a module. [ Impact: make current config options easier to find ] Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * | | | kconfig: do not warn about modules built inSteven Rostedt2009-08-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The streamline_config.pl finds all the configs that are needed to compile the currently loaded modules. After it creates the .config file, it tests to make sure all the configs that are needed were set. It only looks at the configs that are modules, it does not look at the builtin configs. This causes unnecessary warnings about modules not being covered. Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * | | | kconfig: streamline_config.pl do not stop with no dependsSteven Rostedt2009-08-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a config does not have a prompt, it must be selected. streamline_config.pl keeps track of all configs that select other configs. If a config that does not have a prompt needs to be set to enable a current module, it will include all configs that select it. Note, streamline_config.pl does not enable modules that are not already enabled. It only keeps enabled those that were enabled and might be needed to compile the current modules. The code to find the selects of a config is after the code that adds the depends. But if a config needed selects but had no dependencies, it would not be set. Because the code would stop before getting to the select. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * | | | kconfig: add make localyesconfig optionSteven Rostedt2009-08-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the option localyesconfig to make. This is similar to localmodconfig, but after it removes unnecessary modules it runs sed -i s/=m/=y/ on the .config file. It then runs "make silentoldconfig" to fix any wholes that were created by the conversion of modules to core. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * | | | kconfig: make localmodconfig to run streamline_config.plSteven Rostedt2009-08-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Running the streamline_config.pl script manually can still be confusing for some users. This patch adds the localmodconfig option. This will automatically run streamline_config.pl on the current .config and then run "make silentoldconfig" to fix any wholes that might have been created. $ make localmodconfig This will remove any module configurations in .config that are not needed to compile the modules that are loaded. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * | | | kconfig: add streamline_config.pl to scriptsSteven Rostedt2009-08-18
| | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | streamline_config.pl is a very powerful tool. For those that install a kernel to a new box using the config file from the distribution know that it can take forever to compile the kernel. Making a custom config file that will still boot your box, but bring down the compile time of the kernel can be quit painful, and to ask someone that reported a bug to do this can be a large burdon since that person may not even know how to build a kernel. This script will perform "lsmod" to find all the modules loaded on the current running system. It will read all the Makefiles to map which CONFIG enables a module. It will read the Kconfig files to find the dependencies and selects that may be needed to support a CONFIG. Finally, it reads the .config file and removes any module "=m" that is not needed to enable the currently loaded modules. The output goes to standard out. Here's a way to run the script. From the Linux directory that holds a distribution .config. $ scripts/kconfig/streamline_config.pl arch/x86/Kconfig > config-sl $ mv .config config-save $ mv config-sl .config $ make oldconfig Now you have a .config that will still build all your modules, but also take much less time to build the kernel. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
* | | | Merge branch 'linus' into tracing/coreIngo Molnar2009-08-11
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: kernel/trace/trace_events_filter.c We use the tracing/core version. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | Merge branch 'linus' into tracing/urgentIngo Molnar2009-08-09
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge reason: Merge up to almost-rc6 to pick up latest perfcounters (on which we'll queue up a dependent fix) Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * \ \ Merge branch 'tracing-fixes-for-linus' of ↵Linus Torvalds2009-08-04
| | |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: tracing: Fix missing function_graph events when we splice_read from trace_pipe tracing: Fix invalid function_graph entry trace: stop tracer in oops_enter() ftrace: Only update $offset when we update $ref_func ftrace: Fix the conditional that updates $ref_func tracing: only truncate ftrace files when O_TRUNC is set tracing: show proper address for trace-printk format
| | * | | | get_maintainerpl-add-git-min-percent-option-fixJoe Perches2009-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow an option to control the minimum percentage of sign-offs required before being considered a maintainer. git-min-percent has a default value of 5 Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * | | | get_maintainer.pl: Add git-min-percent optionJoe Perches2009-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow an option to control the minimum percentage of sign-offs required before being considered a maintainer. git-min-percent has a default value of 5 Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * | | | scripts/get_maintainer.pl: Add -f directory useJoe Perches2009-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't require a specific file in a directory to be tested. Also Arnd Bergmann pointed out that the MAINTAINERS pattern requirement that directory patterns have a trailing slash was unnecessary and was likely to be error prone. Removed that requirement. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * | | | markup_oops: fix it with 32-bit userspace on a 64-bit kernelMatthew Wilcox2009-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A 32-bit perl can't handle 64-bit addresses without using the BigInt package. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | | | tracing: Fix recordmcount.pl to handle sections with only weak functionsSteven Rostedt2009-08-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Roland Dreier found that a section that contained only a weak function in one of the staging drivers and this caused recordmcount.pl to spit out a warning and fail. Although it is strange that a driver would have a weak function, and this function only be used in one place, it should not be something to make recordmcount.pl fail. This patch fixes the issue in a simple manner: if only weak functions exist in a section, then that section will not be recorded. Reported-by: Roland Dreier <rdreier@cisco.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | tracing: do not use functions starting with .L in recordmcount.plSteven Rostedt2009-08-05
| | |/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Wed, 5 Aug 2009, Ingo Molnar wrote: > * Dave Airlie <airlied@gmail.com> wrote: > > > Hey, > > > > So I spent 3-4 hrs today (I'm stupid yes) tracking down a .o > > breakage by blaming rawhide gcc/binutils as I was using make > > V=1and seeing only the compiler chain running, > > Hm, is this that powerpc related build bug you just reported? Well we tracked it down and it is powerpc64 specific. Seems that in drivers/hwmon/lm93.c there's a function called: LM93_IN_FROM_REG() But PPC64 has function descriptors and the real function names (the ones you see in objdump) start with a '.'. Thus this in objdump you have: Disassembly of section .text: 0000000000000000 <.LM93_IN_FROM_REG>: 0: 7c 08 02 a6 mflr r0 4: fb 81 ff e0 std r28,-32(r1) The function name used is .LM93_IN_FROM_REG. But gcc considers symbols that start with ".L" as a special symbol that is used inside the assembly stage. The nm passed into recordmcount uses the --synthetic option which shows the ".L" symbols (my runs outside of the build did not include the --synthetic option, so my older patch worked). We see the function as a local. Now to capture all the locations that use "mcount" we need to have a reference to link into the object file a list of mcount callers. We need a reference that will not disappear. We try to use a global function and if that does not work, we use a local function as a reference. But to relink the section back into the object, we need to make it global. In this case, we run objcopy using --globalize-symbol and --localize-symbol to convert the symbol into a global symbol, link the mcount list, then convert it back to a local symbol. This works great except for this case. .L* symbols can not be converted into a global symbol, and the mcount section referencing it will remain unresolved. Reported-by: Dave Airlie <airlied@gmail.com> LKML-Reference: <alpine.DEB.2.00.0908052011590.5010@gandalf.stny.rr.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * | | | Merge branch 'tracing/fixes' of ↵Ingo Molnar2009-08-04
| |\| | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into tracing/urgent
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