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* kbuild: fix help output to show correct archAndres Salomon2008-04-281-2/+2
| | | | | Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: show defconfig subdirs in make helpSegher Boessenkool2008-04-281-1/+22
| | | | | | | | | | | | | | | | | | | | PowerPC will start moving board defconfigs into subarch-specific subdirs soon. "make help" currently does not look in subdirs to find the defconfigs to show. This is partially a good thing, since there are way too many defconfigs for one list. This patch makes the main "make help" display something like help-40x - Show 40x-specific targets help-44x - Show 44x-specific targets help-boards - Show all of the above and wires up stuff so those new help-* commands actually work. [sam: fixed it up to display x86 defconfigs too] Cc: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: fix depmod commentUwe Kleine-König2008-04-251-1/+0
| | | | | | Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com> Cc: trivial@kernel.org Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* Add option to enable -Wframe-larger-than= on gcc 4.4Andi Kleen2008-04-251-0/+4
| | | | | | | | | | | | | | | | | | | | | | Add option to enable -Wframe-larger-than= on gcc 4.4 gcc mainline (upcoming 4.4) added a new -Wframe-larger-than=... option to warn at build time about too large stack frames. Add a config option to enable this warning, since this very useful for the kernel. I choose (somewhat arbitarily) 2048 as default warning threshold for 64bit and 1024 as default for 32bit architectures. With some research and fixing all the code for smaller values these defaults should be probably lowered. With the default allyesconfigs have some new warnings, but I think that is all code that should be just fixed. At some point (when gcc 4.4 is released and widely used) this should obsolete make checkstack Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: add kconfig symbols to tags outputAlexey Dobriyan2008-04-251-2/+2
| | | | | | | | | Steps to reproduce: vi -t NETFILTER Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* Remove -numa from EXTRAVERSIONSebastian Siewior2008-04-241-1/+1
| | | | | | | | | This snuck in through 919ee677b656c52c5f86d3d916786891220d5452 ("[SPARC64]: Add NUMA support") Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [SPARC64]: Add NUMA support.David S. Miller2008-04-241-1/+1
| | | | | | | | Currently there is only code to parse NUMA attributes on sun4v/niagara systems, but later on we will add such parsing for older systems. Signed-off-by: David S. Miller <davem@davemloft.net>
* fix typo "is" -> "if" in MakefileUwe Kleine-König2008-04-221-1/+1
| | | | | | | It should be "if" but is written as "is".. Signed-off-by: Uwe Kleine-Koenig <Uwe.Kleine-Koenig@digi.com> Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
* Linux 2.6.25v2.6.25Linus Torvalds2008-04-171-1/+1
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* Linux 2.6.25-rc9v2.6.25-rc9Linus Torvalds2008-04-111-1/+1
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* Linux 2.6.25-rc8v2.6.25-rc8Linus Torvalds2008-04-011-1/+1
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* Linux 2.6.25-rc7v2.6.25-rc7Linus Torvalds2008-03-261-1/+1
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* kbuild: soften modpost checks when doing cross buildsSam Ravnborg2008-03-231-1/+1
| | | | | | | | | | | | | | | | The module alias support in the kernel have a consistency check where it is checked that the size of a structure in the kernel and on the build host are the same. For cross builds this check does not make sense so detect when we do cross builds and silently skip the check in these situations. This fixes a build bug for a wireless driver when cross building for arm. Acked-by: Michael Buesch <mb@bu3sch.de> Tested-by: Gordon Farquharson <gordonfarquharson@gmail.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: stable@kernel.org
* Linux 2.6.25-rc6v2.6.25-rc6Linus Torvalds2008-03-171-1/+1
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* Linux 2.6.25-rc5v2.6.25-rc5Linus Torvalds2008-03-101-1/+1
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* Linux 2.6.25-rc4v2.6.25-rc4Linus Torvalds2008-03-051-1/+1
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* Linux 2.6.25-rc3v2.6.25-rc3Linus Torvalds2008-02-241-1/+1
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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuildLinus Torvalds2008-02-191-4/+7
|\ | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: kbuild: explain why DEBUG_SECTION_MISMATCH is UNDEFINED kbuild: fix building vmlinux.o kbuild: allow -fstack-protector to take effect kconfig: fix select in combination with default
| * kbuild: fix building vmlinux.oSam Ravnborg2008-02-141-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ingo Molnar wrote: > > i've got a build log from a weird build error below: > > LD init/built-in.o > distcc[12023] ERROR: compile (null) on localhost failed > make: *** [vmlinux.o] Error 1 > make: *** Waiting for unfinished jobs.... > LD .tmp_vmlinux1 > Building vmlinux.o were moved up in the dependency chain so we started to build it before the kallsym stuff. This was done to let modpost report section mismatch bugs even when the final link failed. Originally I had expected the dependency of $(kallsyms.o) to cover this but it turns out that we need to be even more explicit. Fix this by adding a conditional dependency on firat target used in the kallsyms serie of builds. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Roland McGrath <roland@redhat.com>
| * kbuild: allow -fstack-protector to take effectSam Ravnborg2008-02-141-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Arjan van de Ven <arjan@infradead.org> wrote: === I just read the excellent LWN writeup of the vmsplice security thing, and that got me wondering why this attack wasn't stopped by the CONFIG_CC_STACKPROTECTOR option... because it plain should have been... Some analysis later.. it turns out that the following line in the top level Makefile, added by you in October 2007, entirely disables CONFIG_CC_STACKPROTECTOR ;( With this line removed the exploit will be nicely stopped. CFLAGS += $(call cc-option, -fno-stack-protector) Now I realize that certain distros have patched gcc to compensate for their lack of distro wide CFLAGS, and it's great to work around that... but would there be a way to NOT disable this for CONFIG_CC_STACKPROTECTOR please? It would have made this exploit not possible for those kernels that enable this feature (and that includes distros like Fedora) === Move the assignment to KBUILD_CFLAGS up before including the arch specific Makefile so arch makefiles may override the setting. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Arjan van de Ven <arjan@infradead.org> Cc: stable@kernel.org
* | Linux 2.6.25-rc2v2.6.25-rc2Linus Torvalds2008-02-151-2/+2
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* Linux 2.6.25-rc1v2.6.25-rc1Linus Torvalds2008-02-101-2/+2
| | | | | | .. and I really need to call it something else. Maybe it is time to bring back the weasel series, since weasels always make me feel good about a kernel.
* Typoes: "whith" -> "with"Robert P. J. Day2008-02-031-1/+1
| | | | | Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Adrian Bunk <bunk@kernel.org>
* kbuild: link vmlinux.o before kallsyms passesSam Ravnborg2008-01-281-2/+4
| | | | | | | link vmlinux.o so we may report section mismatch bugs before we start with the real link - that may error out. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: introduce new option to enhance section mismatch analysisSam Ravnborg2008-01-281-0/+5
| | | | | | | | | | | Setting the option DEBUG_SECTION_MISMATCH will report additional section mismatch'es but this should in the end makes it possible to get rid of all of them. See help text in lib/Kconfig.debug for details. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: document 'make prepare' in 'make help'Valdis.Kletnieks@vt.edu2008-01-281-0/+1
| | | | | | | | The output of 'make help' covers a lot of options, but doesn't include a listing for 'make prepare'. Here's a one-liner to fix that... Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: ignore cache modifiers for generating the tags filesUwe Kleine-König2008-01-281-0/+1
| | | | | | | | | | | | | | | With this patch I'm able to find the definition of _xmit_lock defined in include/linux/netdevice.h as follows: struct net_device { ... spinlock_t _xmit_lock ____cacheline_aligned_in_smp; } Otherwise this counts as definition of ____cacheline_aligned_in_smp. Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* Kbuild: Clarify the rpm-related make packaging targetsRobert P. J. Day2008-01-281-1/+0
| | | | | Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: implement modules.orderTejun Heo2008-01-281-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When multiple built-in modules (especially drivers) provide the same capability, they're prioritized by link order specified by the order listed in Makefile. This implicit ordering is lost for loadable modules. When driver modules are loaded by udev, what comes first in modules.alias file is selected. However, the order in this file is indeterministic (depends on filesystem listing order of installed modules). This causes confusion. The solution is two-parted. This patch updates kbuild such that it generates and installs modules.order which contains the name of modules ordered according to Makefile. The second part is update to depmod such that it generates output files according to this file. Note that both obj-y and obj-m subdirs can contain modules and ordering information between those two are lost from beginning. Currently obj-y subdirs are put before obj-m subdirs. Sam Ravnborg cleaned up Makefile modifications and suggested using awk to remove duplicate lines from modules.order instead of using separate C program. Signed-off-by: Tejun Heo <htejun@gmail.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Cc: Bill Nottingham <notting@redhat.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Jon Masters <jonathan@jonmasters.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: Add missing srctree prefix for includecheck and versioncheckGeert Uytterhoeven2008-01-281-2/+2
| | | | | | | | Add missing $(srctree)/ prefix for scripts used by the includecheck and versioncheck make targets Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: document versioncheck in make helpSam Ravnborg2008-01-281-0/+1
| | | | Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: add 'includecheck' help textRandy Dunlap2008-01-281-0/+1
| | | | | | | Add 'includecheck' to the Static analyzers help list. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* sh: Fix up uname -m matching for native sh64.Paul Mundt2008-01-281-1/+1
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* Linux 2.6.24v2.6.24Linus Torvalds2008-01-241-1/+1
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* Makefile: Change typoed 'behavour' to 'behaviour'Linus Nilsson2008-01-221-2/+2
| | | | | | | Change two occurances of "behavour" to "behaviour". Signed-off-by: Linus Nilsson <lajnold@acc.umu.se> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Linux 2.6.24-rc8v2.6.24-rc8Linus Torvalds2008-01-161-1/+1
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* Linux 2.6.24-rc7v2.6.24-rc7Linus Torvalds2008-01-061-1/+1
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* Linux 2.6.24-rc6v2.6.24-rc6Linus Torvalds2007-12-211-1/+1
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* Linux 2.6.24-rc5v2.6.24-rc5Linus Torvalds2007-12-111-1/+1
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* kbuild: fix building with O=.. optionsSam Ravnborg2007-12-091-3/+0
| | | | | | | | | | | | | | | | The check introduced in commit: 4f1127e204377cbd2a56d112d323466f668e8334 "kbuild: fix infinite make recursion" caused certain external modules not to build and also caused 'make targz-pkg' to fail. This is a minimal fix so we revert to previous behaviour - but we do not overwrite the Makefile in the top-level directory. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Tested-by: Jay Cliburn <jacliburn@bellsouth.net> Cc: Jay Cliburn <jacliburn@bellsouth.net>
* kbuild: fix building with redirected output.Sam Ravnborg2007-12-091-5/+6
| | | | | | | | | | | | | | | | | Jan Altenberg <jan.altenberg@linutronix.de> reported that building with redirected input like this failed: make O=dir oldconfig bzImage < /dev/null The problem were caused by a make silentoldconfig being run before oldconfig and with a non-recent .config the build failed because silentoldconfig requires non-redirected stdin. Silentoldconfig was run as a side-effect of having the top-level Makefile re-made by make. Introducing an empty rule for the top-level Makefile (and Kbuild.include) fixed the issue. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* Linux 2.6.24-rc4v2.6.24-rc4Linus Torvalds2007-12-041-1/+1
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* x86: simplify "make ARCH=x86" and fix kconfig all.configSam Ravnborg2007-11-171-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simplify "make ARCH=x86" and fix kconfig so we again can set 64BIT in all.config. For a fix the diffstat is nice: 6 files changed, 3 insertions(+), 36 deletions(-) The patch reverts these commits: 0f855aa64b3f63d35a891510cf7db932a435c116 -> kconfig: add helper to set config symbol from environment variable 2a113281f5cd2febbab21a93c8943f8d3eece4d3 -> kconfig: use $K64BIT to set 64BIT with all*config targets Roman Zippel pointed out that kconfig supported string compares so the additional complexity introduced by the above two patches were not needed. With this patch we have following behaviour: # make {allno,allyes,allmod,rand}config [ARCH=...] option \ host arch | 32bit | 64bit ===================================================== ./. | 32bit | 64bit ARCH=x86 | 32bit | 32bit ARCH=i386 | 32bit | 32bit ARCH=x86_64 | 64bit | 64bit The general rule are that ARCH= and native architecture takes precedence over the configuration. So make ARCH=i386 [whatever] will always build a 32-bit kernel no matter what the configuration says. The configuration will be updated to 32-bit if it was configured to 64-bit and the other way around. This behaviour is consistent with previous behaviour so no suprises here. make ARCH=x86 will per default result in a 32-bit kernel but as the only ARCH= value x86 allow the user to select between 32-bit and 64-bit using menuconfig. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Andreas Herrmann <aherrman@arcor.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com>
* Remove x86 merge artifact from top MakefileThomas Gleixner2007-11-171-6/+1
| | | | | | | The x86 merge modified the tags target to handle the two separate source directories. Remove it now that i386/x86_64 are gone completely. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* Linux 2.6.24-rc3v2.6.24-rc3Linus Torvalds2007-11-171-1/+1
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* x86: enable "make ARCH=x86"Sam Ravnborg2007-11-121-1/+3
| | | | | | | | | | | | | | | | | | | | | After unification of the Kconfig files and introducing K64BIT support in kconfig it required only trivial changes to enable "make ARCH=x86". With this patch you can build for x86_64 in several ways: 1) make ARCH=x86_64 2) make ARCH=x86 K64BIT=y 3) make ARCH=x86 menuconfig => select 64-bit Likewise for i386 with the addition that i386 is default is you say ARCH=x86. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com>
* x86: do not use $(ARCH) when not neededSam Ravnborg2007-11-121-2/+7
| | | | | | | | | | | For x86 ARCH may say i386 or x86_64 and soon x86. Rely on CONFIG_X64_32 to select between 32/64 or just hardcode the value as appropriate. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com>
* Linux 2.6.24-rc2v2.6.24-rc2Linus Torvalds2007-11-061-1/+1
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* kbuild: do not pick up CFLAGS from the environmentSam Ravnborg2007-11-041-3/+16
| | | | | | | | | | | | | | | | | | Too many people have CFLAGS set to support building userspace. And now Kbuild picks up CFLAGS this caused troubles. Although people should realise that setting CFLAGS has a 'global' effect the impact on the kernel build is a suprise. So change kbuild to pick up value from KCFLAGS that is much less used. When kbuild pick up a value it will warn like this: Makefile:544: "WARNING: Appending $KCFLAGS (-O3) from environment to kernel $CFLAGS" Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Bächler <thomas@archlinux.org> Cc: David Miller <davem@davemloft.net> Cc: Ingo Molnar <mingo@redhat.com>
* sh: Correct SUBARCH matching.Paul Mundt2007-11-021-1/+2
| | | | | | | | | When configuring the kernel natively the uname matching is off, so fix up the uname mangling to get the proper SUBARCH. Needs an explicit range so that SH-5 doesn't break. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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