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2007-10-15kbuild: enable 'make CPPFLAGS=...' to add additional options to CPPSam Ravnborg
The variable CPPFLAGS is a wellknown variable and the usage by kbuild may result in unexpected behaviour. This patch replace use of CPPFLAGS with KBUILD_CPPFLAGS all over the tree and enabling one to use: make CPPFLAGS=... to specify additional CPP commandline options. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k, s390 Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-15kbuild: enable use of AFLAGS and CFLAGS on commandlineSam Ravnborg
The previous patches was preparation. With this patch we can now say: make CFLAGS=-Os vmlinux And the option specified will be appended to the options passed to gcc for C files. For assembler use: make AFLAGS=-foo vmlinux for the same functionality. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-15kbuild: enable 'make AFLAGS=...' to add additional options to ASSam Ravnborg
The variable AFLAGS is a wellknown variable and the usage by kbuild may result in unexpected behaviour. On top of that several people over time has asked for a way to pass in additional flags to gcc. This patch replace use of AFLAGS with KBUILD_AFLAGS all over the tree. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k, s390 Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-14kbuild: enable 'make CFLAGS=...' to add additional options to CCSam Ravnborg
The variable CFLAGS is a wellknown variable and the usage by kbuild may result in unexpected behaviour. On top of that several people over time has asked for a way to pass in additional flags to gcc. This patch replace use of CFLAGS with KBUILD_CFLAGS all over the tree and enabling one to use: make CFLAGS=... to specify additional gcc commandline options. One usecase is when trying to find gcc bugs but other use cases has been requested too. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k Test was simple to do a defconfig build, apply the patch and check that nothing got rebuild. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-12kbuild: call export_report from the MakefileAdrian Bunk
The main feature is that export_report now automatically works for O= builds. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-12kbuild: call make once for all targets when O=.. is usedMilton Miller
Change the invocations of make in the output directory Makefile and the main Makefile for separate object trees to pass all goals to one $(MAKE) via a new phony target "sub-make" and the existing target _all. When compiling with separate object directories, a separate make is called in the context of another directory (from the output directory the main Makefile is called, the Makefile is then restarted with current directory set to the object tree). Before this patch, when multiple make command goals are specified, each target results in a separate make invocation. With make -j, these invocations may run in parallel, resulting in multiple commands running in the same directory clobbering each others results. I did not try to address make -j for mixed dot-config and no-dot-config targets. Because the order does matter, a solution was not obvious. Perhaps a simple check for MAKEFLAGS having -j and refusing to run would be appropriate. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-12kbuild: pass -g to assembler under CONFIG_DEBUG_INFORoland McGrath
The assembler for a while now supports -gdwarf to generate source line info just like the C compiler does. Source-level assembly debugging sounds like an oxymoron, but it is handy to be able to see the right source file and read its comments rather than just the disassembly. This patch enables -gdwarf for assembly files when CONFIG_DEBUG_INFO=y and the assembler supports the option. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-12kbuild: fix infinite make recursionSam Ravnborg
Jan Engelhardt <jengelh@computergmbh.de> reported: You can cause a recursion in kbuild/make with the following: make O=$PWD kernel/time.o make mrproper Of course no one would use O=$PWD (that's just the testcase), but this happened too often: /ws/linux/linux-2.6.23$ make O=/ws/linux/linux-2.6.23 kernel/time.o (Oops - should have been O=/ws/linux/obj-2.6.23!) Fixed by an explicit test for this case - we error out if output directory and source directory are the same. Tested-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-12kbuild: clean Modules.symvers in external module dirsMike Frysinger
At the moment, running `make clean` in an external module directory does a nice job of cleaning up with one exception: it leaves behind Modules.symvers. Attached patch adds this file to the clean list for external modules. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-11x86: Fix the $(ARCH) dependent help output in the top MakefileThomas Gleixner
Change the $(ARCH) dependency to $(SRCARCH) to honor the x86 namespace for i386 and x86_64. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-11i386/x86_64: move headers to include/asm-x86Thomas Gleixner
Move the headers to include/asm-x86 and fixup the header install make rules Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-11Kbuild: prepare scope and tags for arch/x86Thomas Gleixner
Preparatory patch for the source merge of arch/i386 and arch/x86_64 into arch/x86. Make scope and tags aware of SRCARCH Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-11Kbuild: allow arch/xxx to use a different source pathThomas Gleixner
Preparatory patch for the source merge of arch/i386 and arch/x86_64 into arch/x86. This allows to keep the original arch directories as stubs for the main Makefiles, Kconfigs et. al during the transition phase while having the code in the new arch/x86 directory. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-09Linux 2.6.23v2.6.23Linus Torvalds
2007-10-01Linux 2.6.23-rc9v2.6.23-rc9Linus Torvalds
No, I didn't want to do this, but we had more stuff go in after -rc8 than we had in the previous -rc. Gaah.
2007-09-24Linux 2.6.23-rc8v2.6.23-rc8Linus Torvalds
Getting there...
2007-09-19Linux 2.6.23-rc7v2.6.23-rc7Linus Torvalds
2007-09-10Linux 2.6.23-rc6v2.6.23-rc6Linus Torvalds
2007-08-31Linux 2.6.23-rc5v2.6.23-rc5Linus Torvalds
2007-08-27Linux 2.6.23-rc4v2.6.23-rc4Linus Torvalds
2007-08-12Linux 2.6.23-rc3v2.6.23-rc3Linus Torvalds
2007-08-03Linux 2.6.23-rc2v2.6.23-rc2Linus Torvalds
2007-07-25kbuild: use LDFLAGS_MODULE only for .ko linksRoland McGrath
Sam Ravnborg pointed out that Documentation/kbuild/makefiles.txt already says this is what it's for. This patch makes the reality live up to the documentation. This fixes the problem of LDFLAGS_BUILD_ID getting into too many places. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-07-22Linux 2.6.23-rc1v2.6.23-rc1Linus Torvalds
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuildLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (33 commits) xtensa: use DATA_DATA in xtensa powerpc: add missing DATA_DATA to powerpc cris: use DATA_DATA in cris kallsyms: remove usage of memmem and _GNU_SOURCE from scripts/kallsyms.c kbuild: use -fno-optimize-sibling-calls unconditionally kconfig: reset generated values only if Kconfig and .config agree. kbuild: fix the warning when running make tags kconfig: strip 'CONFIG_' automatically in kernel configuration search kbuild: use POSIX BRE in headers install target Whitelist references from __dbe_table to .init modpost white list pattern adjustment kbuild: do section mismatch check on full vmlinux kbuild: whitelist references from variables named _timer to .init.text kbuild: remove hardcoded _logo names from modpost kbuild: remove hardcoded apic_es7000 from modpost kbuild: warn about references from .init.text to .exit.text kbuild: consolidate section checks kbuild: refactor code in modpost to improve maintainability kbuild: ignore section mismatch warnings originating from .note section kbuild: .paravirtprobe section is obsolete, so modpost doesn't need to handle it ...
2007-07-19Use --build-id ld optionRoland McGrath
This change passes the --build-id when linking the kernel and when linking modules, if ld supports it. This is a new GNU ld option that synthesizes an ELF note section inside the read-only data. The note in this section contains unique identifying bits called the "build ID", which are generated so as to be different for any two linked ELF files that aren't identical. The build ID can be recovered from stripped files, memory dumps, etc. and used to look up the original program built, locate debuginfo or other details or history associated with it. For normal program linking, the compiler passes --build-id to ld by default, but the option is needed when using ld directly as we do. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Andi Kleen <ak@suse.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17kbuild: use -fno-optimize-sibling-calls unconditionallyAdrian Bunk
We don't have to check for -fno-optimize-sibling-calls since even gcc 3.2 supports it. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-07-17kbuild: fix the warning when running make tagsAneesh Kumar K.V
make tags was giving the below warning. ctags: Warning: arch/x86_64/kernel/head.S:124: null expansion of name pattern "\1" Fix the same by making sure we taken only ENTRY pattern found at the begining of the line. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-07-17kbuild: do section mismatch check on full vmlinuxSam Ravnborg
Previously we did do the check on the .o files used to link vmlinux but that failed to find questionable references across the .o files. Create a dedicated vmlinux.o file used only for section mismatch checks that uses the defualt linker script so section does not get renamed. The vmlinux.o may later be used as part of the the final link of vmlinux but for now it is used fo section mismatch only. For a defconfig build this is instant but for an allyesconfig this add two minutes to a full build (that anyways takes ~2 hours). Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-07-16Add -Werror-implicit-function-declarationDave Jones
Add -Werror-implicit-function-declaration This makes builds fail sooner if something is implicitly defined instead of having to wait half an hour for it to fail at the linking stage. Signed-off-by: Dave Jones <davej@redhat.com> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-08Linux 2.6.22v2.6.22Linus Torvalds
Woo-hoo. I'm sure somebody will report a "this doesn't compile, and I have a new root exploit" five minutes after release, but it still feels good ;) Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-01Linux 2.6.22-rc7v2.6.22-rc7Linus Torvalds
Last -rc? That's the plan..
2007-06-24Linus 2.6.22-rc6v2.6.22-rc6Linus Torvalds
2007-06-16Linux 2.6.22-rc5v2.6.22-rc5Linus Torvalds
The manatees, they are dancing! Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-04Linux 2.6.22-rc4v2.6.22-rc4Linus Torvalds
2007-05-25Linux 2.6.22-rc3v2.6.22-rc3Linus Torvalds
It's that time of the year again. Summer starts in the US, and people want to sit at the beach with a new -rc candidate. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-18Linux v2.6.22-rc2v2.6.22-rc2Linus Torvalds
2007-05-17Revert "[PATCH] x86: Drop cc-options call for all options supported in gcc 3.2+"Linus Torvalds
This reverts commit c8fdd247255a3a027cd9f66dcf93e6847d1d2f85. It turns out the kernel was correct, and the gcc complaint was a gcc bug. The preferred stack boundary is expressed not in bytes, but in the the log2() of the preferred boundary, so "-mpreferred-stack-boundary=2" is in fact exactly what we want, but a gcc that is compiled for x86-64 will consider it an error (because the 64-bit calling sequence says that the stack should be 16-byte aligned) even if we are then using "-m32" to generate 32-bit code. Noted-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> Cc: Jan Hubicka <jh@suse.cz> Acked-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-12Linux 2.6.22-rc1v2.6.22-rc1Linus Torvalds
.. close the merge window
2007-05-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuildLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (38 commits) kconfig: fix mconf segmentation fault kbuild: enable use of code from a different dir kconfig: error out if recursive dependencies are found kbuild: scripts/basic/fixdep segfault on pathological string-o-death kconfig: correct minor typo in Kconfig warning message. kconfig: fix path to modules.txt in Kconfig help usr/Kconfig: fix typo kernel-doc: alphabetically-sorted entries in index.html of 'htmldocs' kbuild: be more explicit on missing .config file kbuild: clarify the creation of the LOCALVERSION_AUTO string. kbuild: propagate errors from find in scripts/gen_initramfs_list.sh kconfig: refer to qt3 if we cannot find qt libraries kbuild: handle compressed cpio initramfs-es kbuild: ignore section mismatch warning for references from .paravirtprobe to .init.text kbuild: remove stale comment in modpost.c kbuild/mkuboot.sh: allow spaces in CROSS_COMPILE kbuild: fix make mrproper for Documentation/DocBook/man kbuild: remove kconfig binaries during make mrproper kconfig/menuconfig: do not hardcode '.config' kbuild: override build timestamp & version ...
2007-05-02kbuild: complain about missing system callsSam Ravnborg
Most system calls seems to get added to i386 first. This patch automatically generates a warning for any new system call which is implemented on i386 but not the architecture currently being compiled. On PowerPC at the moment, for example, it results in these warnings: init/missing_syscalls.h:935:3: warning: #warning syscall sync_file_range not implemented init/missing_syscalls.h:947:3: warning: #warning syscall getcpu not implemented init/missing_syscalls.h:950:3: warning: #warning syscall epoll_pwait not implemented The file scripts/checksyscalls.sh list a number of legacy system calls that are ignored because they only makes sense on i386 systems. Other contributors to this patch are Russell King <rmk+lkml@arm.linux.org.uk> and Stéphane Jourdois <kwisatz@rubis.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-02kbuild: move tags from ARCH and include/ ahead of driversDon Mullis
Move tags extracted from the ARCH and include/ sub-trees ahead of those from device drivers, so that the former will appear first during searches. Saves user time during interactive searches for certain patterns that happen to find unwanted matches in driver files. Example in emacs: "M-x find-tag PAGE_SIZE" "M-1 M-." (repeated until definition from asm-i386/page.h appears) Signed-off-by: Don Mullis <dwm@meer.net> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-02kbuild: add a missing slash in the commentsUwe Zeisberger
Signed-off-by: Uwe Zeisberger <zeisberg@informatik.uni-freiburg.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-02kbuild: fix section mismatch check for vmlinuxSam Ravnborg
vmlinux does not contain relocation entries which is used by the section mismatch checks. Reported by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Use the individual objects as inputs to overcome this limitation. In modpost check the .o files and skip non-ELF files. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-02[PATCH] x86: Drop cc-options call for all options supported in gcc 3.2+Andi Kleen
The kernel only supports gcc 3.2+ now so it doesn't make sense anymore to explicitely check for options this compiler version already has. This actually fixes a bug. The -mprefered-stack-boundary check never worked because gcc rightly complains CC arch/i386/kernel/asm-offsets.s cc1: -mpreferred-stack-boundary=2 is not between 4 and 12 We just never saw the error because of cc-options. I changed it to 4 to actually work. Tested by compiling i386 and x86-64 defconfig with gcc 3.2. Should speed up the build time a tiny bit and improve stack usage on i386 slightly. Signed-off-by: Andi Kleen <ak@suse.de>
2007-04-25Linux 2.6.21v2.6.21Linus Torvalds
.. ok, enough waffling about it already. "Just do it!" Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-15Linux 2.6.21-rc7v2.6.21-rc7Linus Torvalds
I tend to prefer to not have to cut an -rc7, but we still have some network device driver and suspend issues. So here's -rc7. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-05Linux 2.6.21-rc6v2.6.21-rc6Linus Torvalds
.. perfect? Ahh, sure. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-25Linux 2.6.21-rc5v2.6.21-rc5Linus Torvalds
.. hopefully most of the fallout of the timer changes is contained now. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-15Linux 2.6.21-rc4v2.6.21-rc4Linus Torvalds
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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