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* decompressors: add boot-time XZ supportLasse Collin2011-01-131-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | This implements the API defined in <linux/decompress/generic.h> which is used for kernel, initramfs, and initrd decompression. This patch together with the first patch is enough for XZ-compressed initramfs and initrd; XZ-compressed kernel will need arch-specific changes. The buffering requirements described in decompress_unxz.c are stricter than with gzip, so the relevant changes should be done to the arch-specific code when adding support for XZ-compressed kernel. Similarly, the heap size in arch-specific pre-boot code may need to be increased (30 KiB is enough). The XZ decompressor needs memmove(), memeq() (memcmp() == 0), and memzero() (memset(ptr, 0, size)), which aren't available in all arch-specific pre-boot environments. I'm including simple versions in decompress_unxz.c, but a cleaner solution would naturally be nicer. Signed-off-by: Lasse Collin <lasse.collin@tukaani.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Alain Knaff <alain@knaff.lu> Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com> Cc: Phillip Lougher <phillip@lougher.demon.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* decompressors: add XZ decompressor moduleLasse Collin2011-01-132-0/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In userspace, the .lzma format has become mostly a legacy file format that got superseded by the .xz format. Similarly, LZMA Utils was superseded by XZ Utils. These patches add support for XZ decompression into the kernel. Most of the code is as is from XZ Embedded <http://tukaani.org/xz/embedded.html>. It was written for the Linux kernel but is usable in other projects too. Advantages of XZ over the current LZMA code in the kernel: - Nice API that can be used by other kernel modules; it's not limited to kernel, initramfs, and initrd decompression. - Integrity check support (CRC32) - BCJ filters improve compression of executable code on certain architectures. These together with LZMA2 can produce a few percent smaller kernel or Squashfs images than plain LZMA without making the decompression slower. This patch: Add the main decompression code (xz_dec), testing module (xz_dec_test), wrapper script (xz_wrap.sh) for the xz command line tool, and documentation. The xz_dec module is enough to have a usable XZ decompressor e.g. for Squashfs. Signed-off-by: Lasse Collin <lasse.collin@tukaani.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Alain Knaff <alain@knaff.lu> Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com> Cc: Phillip Lougher <phillip@lougher.demon.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* checkpatch.pl: add "prefer __packed" checkJoe Perches2011-01-131-0/+5
| | | | | | | | | | There's a __packed #define for __attribute__((packed)). Add a checkpatch to tell people about it. Signed-off-by: Joe Perches <joe@perches.com> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* checkpatch: check for world-writeable sysfs/debugfs filesDave Jones2011-01-131-0/+5
| | | | | | | | | | Exporting world writable sysfs/debugfs files is usually a bad thing. Warn about it. Signed-off-by: Dave Jones <davej@redhat.com> Cc: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* checkpatch.pl: fix CAST detectionFlorian Mickler2011-01-131-1/+1
| | | | | | | | | | | | | | | | We should only claim that something is a cast if we did not encouter a token before, that did set av_pending. This fixes the operator * in the line below to be detected as binary (vs unary). kmalloc(sizeof(struct alphatrack_ocmd) * true_size, GFP_KERNEL); Reported-by: Audun Hoem <audun.hoem@gmail.com> Signed-off-by: Florian Mickler <florian@mickler.org> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* scripts/checkpatch.pl: add check for multiple terminating semicolons and ↵Joe Perches2011-01-131-1/+6
| | | | | | | | | casts of vmalloc Signed-off-by: Joe Perches <joe@perches.com> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* scripts/get_maintainer.pl: use --git-fallback more oftenJoe Perches2011-01-131-1/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Fri, 2010-11-05 at 13:50 -0700, Andrew Morton wrote: > z:/usr/src/git26> perl scripts/get_maintainer.pl -file mm/mempolicy.c > linux-mm@kvack.org > linux-kernel@vger.kernel.org Turns out this is an arguable defect in the script. The MAINTAINERS entry for mm is: MEMORY MANAGEMENT L: linux-mm@kvack.org W: http://www.linux-mm.org S: Maintained F: include/linux/mm.h F: mm/ There's a maintainer entry, but no named individual, so the script doesn't use git history via --git-fallback. This is also a defect for MAINTAINERS with status entries marked "Orphan" or "Odd fixes". The script now checks a section for any "M:" entry and that an "S:" entry is supported or maintained. If both those conditions are not satisified, use --git-fallback as appropriate. 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: make --rolestats the defaultJoe Perches2011-01-131-3/+4
| | | | | | | | | | | | | | This script now requires a user to add --norolestats to the command line so it's harder to feed the output of this script to programs that send mass emails. Update --help to correct command line defaults. Change version to 0.26. 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>
* Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds2011-01-1019-1452/+1744
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: (29 commits) of/flattree: forward declare struct device_node in of_fdt.h ipmi: explicitly include of_address.h and of_irq.h sparc: explicitly cast negative phandle checks to s32 powerpc/405: Fix missing #{address,size}-cells in i2c node powerpc/5200: dts: refactor dts files powerpc/5200: dts: Change combatible strings on localbus powerpc/5200: dts: remove unused properties powerpc/5200: dts: rename nodes to prepare for refactoring dts files of/flattree: Update dtc to current mainline. of/device: Don't register disabled devices powerpc/dts: fix syntax bugs in bluestone.dts of: Fixes for OF probing on little endian systems of: make drivers depend on CONFIG_OF instead of CONFIG_PPC_OF of/flattree: Add of_flat_dt_match() helper function of_serial: explicitly include of_irq.h of/flattree: Refactor unflatten_device_tree and add fdt_unflatten_tree of/flattree: Reorder unflatten_dt_node of/flattree: Refactor unflatten_dt_node of/flattree: Add non-boottime device tree functions of/flattree: Add Kconfig for EARLY_FLATTREE ... Fix up trivial conflict in arch/sparc/prom/tree_32.c as per Grant.
| * of/flattree: Update dtc to current mainline.John Bonesio2011-01-0318-1452/+1721
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull in recent changes from the main dtc repository. These changes primarily allow multiple device trees to be declared which are merged by dtc. This feature allows us to include a basic dts file and then provide more information for the specific system through the merging functionality. Changes pulled from git://git.jdl.com/software/dtc.git commit id: 37c0b6a0, "dtc: Add code to make diffing trees easier" Signed-off-by: John Bonesio <bones@secretlab.ca> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| * of: Add support for linking device tree blobs into vmlinuxDirk Brandewie2010-12-231-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for linking device tree blob(s) into vmlinux. Modifies asm-generic/vmlinux.lds.h to add linking .dtb sections into vmlinux. To maintain compatiblity with the of/fdt driver code platforms MUST copy the blob to a non-init memory location before the kernel frees the .init.* sections in the image. Modifies scripts/Makefile.lib to add a kbuild command to compile DTS files to device tree blobs and a rule to create objects to wrap the blobs for linking. STRUCT_ALIGNMENT is defined in vmlinux.lds.h for use in the rule to create wrapper objects for the dtb in Makefile.lib. The STRUCT_ALIGN() macro in vmlinux.lds.h is modified to use the STRUCT_ALIGNMENT definition. The DTB's are placed on 32 byte boundries to allow parsing the blob with driver/of/fdt.c during early boot without having to copy the blob to get the structure alignment GCC expects. A DTB is linked in by adding the DTB object to the list of objects to be linked into vmlinux in the archtecture specific Makefile using obj-y += foo.dtb.o Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com> Acked-by: Michal Marek <mmarek@suse.cz> [grant.likely@secretlab.ca: cleaned up whitespace inconsistencies] Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* | Merge branch 'misc' of ↵Linus Torvalds2011-01-106-35/+32
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: Documentation/kbuild: add info that 'choice' can have a symbol name kbuild: add numeric --set-val option to scripts/config headers_check: Fix warning text headers_check: better search for functions in headers scripts/coccinelle: update for compatability with Coccinelle 0.2.4 tags: put function prototypes back! Kconfig: fix single letter command in scripts/config gitignore: add scripts/recordmcount
| * | kbuild: add numeric --set-val option to scripts/configJonas Aaberg2010-12-151-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | Add new option to scripts/config for changing .config numeric values Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | headers_check: Fix warning textakpm@linux-foundation.org2010-12-141-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the warning text too, per Randy. Cc: Alexander Shishkin <virtuoso@slind.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Stephen Hemminger <shemminger@vyatta.com> Cc: WANG Cong <amwang@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | headers_check: better search for functions in headersakpm@linux-foundation.org2010-12-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some headers don't bother with "extern" in function prototypes, which results in said prototypes being unnoticed and exported to userland. This patch slightly improves detection of such cases by checking for C type names as well in the beginning of a line. Signed-off-by: Alexander Shishkin <virtuoso@slind.org> Cc: Stephen Hemminger <shemminger@vyatta.com> Cc: Michal Marek <mmarek@suse.cz> Cc: WANG Cong <amwang@redhat.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | scripts/coccinelle: update for compatability with Coccinelle 0.2.4Julia Lawall2010-12-032-28/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For doubleinit.cocci, Coccinelle 0.2.4 requires a comma after ... in a field list. Coccinelle also now behaves gracefully when a definition is provided for a virtual that doesn't exist, so there is no need for the semantic patch code to check for this case. Updated the documentation to reflect the fact that the best results will now be obtained with Coccinelle version 0.2.4 or later. Signed-off-by: Julia Lawall <julia@diku.dk>
| * | tags: put function prototypes back!Uwe Kleine-König2010-12-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 7db86dc (ctags: usability fix) removed function prototypes from tags file claiming "It makes no real sense to include function prototypes". But it is useful for quickly determining which header file developer needs to include to fix compilation. Now if someone wants to remove forward declarations (which I agree are baggage), write a postprocessing script. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | Kconfig: fix single letter command in scripts/configAndi Kleen2010-11-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The one letter commands in scripts/config didn't work and always printed usage. Fix this here. Cc: erick@openchill.org Reported-by: erick@openchill.org Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | gitignore: add scripts/recordmcountAmérico Wang2010-11-251-0/+1
| | | | | | | | | | | | | | | | | | | | | This file is generated, should be ignored by git. Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* | | Merge branch 'packaging' of ↵Linus Torvalds2011-01-101-4/+89
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 * 'packaging' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: deb-pkg: s/hdr/kernel_headers_/ && s/header/libc_headers_/ deb-pkg: Make deb-pkg generate a seperate linux-libc-dev deb kbuild: create linux-headers package in deb-pkg kbuild, deb-pkg: support overriding userland architecture kbuild, deb-pkg: select userland architecture based on UTS_MACHINE kbuild, deb-pkg: Fix build with paranoid umask
| * | | deb-pkg: s/hdr/kernel_headers_/ && s/header/libc_headers_/maximilian attems2011-01-071-14/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | hdrpackage and headerpackage are not intuitive names, use proposed alternatives by Michel Marek. While touching them move the mkdir of the kernel_headers dir up and fix it for paranoid umask. CC: Theodore Ts'o <tytso@mit.edu> Signed-off-by: maximilian attems <max@stro.at> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | deb-pkg: Make deb-pkg generate a seperate linux-libc-dev debmaximilian attems2011-01-071-1/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | userland dev likes latest incarnation of that userland API. make it easy to also build it on make deb-pkg invocation: dpkg-deb: building package `linux-libc-dev' in `../linux-libc-dev_2.6.32-rc6-4_amd64.deb'. Last year patch rebased on top of latest deb-pkg changes. Signed-off-by: maximilian attems <max@stro.at> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | kbuild: create linux-headers package in deb-pkgTheodore Ts'o2010-12-291-1/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Create a linux-headers-$KVER.deb package which can be used to build external modules without having the source tree around. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | kbuild, deb-pkg: support overriding userland architectureAsbjoern Sloth Toennesen2010-12-201-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Usefull if building for sparc64 userland, because the sparc and sparc64 userlands use the same 64-bit kernel, making it impossible to always select the correct userland architecture for the resulting debian package. Might also be usefull, if you want a i386 userland with a amd64 kernel. Example usage: make KBUILD_DEBARCH=i386 deb-pkg LKML-reference: <alpine.DEB.2.02.1011051437500.13287@aurora.sdinet.de> Signed-off-by: Asbjoern Sloth Toennesen <asbjorn@asbjorn.biz> Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com> Acked-by: maximilian attems <max@stro.at> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | kbuild, deb-pkg: select userland architecture based on UTS_MACHINEAsbjoern Sloth Toennesen2010-11-251-1/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of creating the debian package for the compiling userland, create it for a userland matching the kernel thats being compiled. This patch supports all Lenny release architectures, and Linux-based architecture candidates for Squeeze. If it can't find a proper Debian userspace it displays a warning, and fallback to let deb-gencontrol use the host's userspace arch. Eg. with this patch the following make command: make ARCH=i386 deb-pkg will output an i386 Debian package instead of an amd64 one, when run on an amd64 machine. Signed-off-by: Asbjoern Sloth Toennesen <asbjorn@asbjorn.biz> Acked-by: maximilian attems <max@stro.at> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | kbuild, deb-pkg: Fix build with paranoid umaskmaximilian attems2010-11-111-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | umask 077 make deb-pkg <snipp ..> dpkg-deb: building package `linux-image-2.6.36+' in `../linux-image-2.6.36+_2.6.36+-4_amd64.deb'. dpkg-deb: control directory has bad permissions 700 (must be >=0755 and <=0775) make[1]: *** [deb-pkg] Error 2 Reported-by: Bastian Blank <waldi@debian.org> Signed-off-by: maximilian attems <max@stro.at> Signed-off-by: Michal Marek <mmarek@suse.cz>
* | | | Merge branch 'kconfig' of ↵Linus Torvalds2011-01-108-32/+84
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 * 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: nconf: handle comment entries within choice/endchoice kconfig: fix warning kconfig: Make expr_copy() take a const argument kconfig: simplify select-with-unmet-direct-dependency warning kconfig: add more S_INT and S_HEX consistency checks kconfig: fix `zconfdebug' extern declaration kconfig/conf: merge duplicate switch's case kconfig: fix typos kbuild/gconf: add dummy inline for bind_textdomain_codeset() kbuild/nconf: fix spaces damage kconfig: nuke second argument of conf_write_symbol() kconfig: do not define AUTOCONF_INCLUDED kconfig: the day kconfig warns about "select"-abuse has come
| * | | | nconf: handle comment entries within choice/endchoicePeter Korsgaard2011-01-071-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Equivalent to af6c1598 (kconfig: handle comment entries within choice/endchoice), but for nconfig instead. Implement support for comment entries within choice groups. Comment entries are displayed visually distinct from normal configs, and selecting them is a no-op. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | kconfig: fix warningArnaud Lacombe2010-12-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In file included from scripts/kconfig/zconf.tab.c:2502: scripts/kconfig/expr.c:1033: warning: no previous prototype for 'expr_simplify_unmet_dep' Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Arnaud Lacombe <lacombar@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | kconfig: Make expr_copy() take a const argumentMichal Marek2010-12-212-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes scripts/kconfig/expr.c: In function ‘expr_get_leftmost_symbol’: scripts/kconfig/expr.c:1026:2: warning: passing argument 1 of ‘expr_copy’ discards qualifiers from pointer target type scripts/kconfig/expr.c:67:14: note: expected ‘struct expr *’ but argument is of type ‘const struct expr *’ Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | kconfig: simplify select-with-unmet-direct-dependency warningArnaud Lacombe2010-12-212-1/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is an attempt to simplify the expressing printed by kconfig when a symbol is selected but still has direct unmet dependency. First, the symbol reverse dependency is split in sub-expression. Then, each sub-expression is checked to ensure that it does not contains the unmet dependency. This removes the false-positive symbols and fixed symbol which already have the correct dependency. Finally, only the symbol responsible of the "select" is printed, instead of its full dependency tree. CC: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Arnaud Lacombe <lacombar@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | kconfig: add more S_INT and S_HEX consistency checksArnaud Lacombe2010-12-151-3/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch add more number consistency checkg, trying to catch the following situation: config FOO0 hex default 42 config FOO1 string config BAR0 int default FOO1 config BAR1 hex default FOO1 config FOO2 hex default 42h config FOO3 int default "1bar" Signed-off-by: Arnaud Lacombe <lacombar@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | kconfig: fix `zconfdebug' extern declarationArnaud Lacombe2010-12-151-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This symbol is only exist if YYDEBUG is defined. Signed-off-by: Arnaud Lacombe <lacombar@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | kconfig/conf: merge duplicate switch's caseArnaud Lacombe2010-12-151-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Arnaud Lacombe <lacombar@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | kconfig: fix typosArnaud Lacombe2010-12-152-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Arnaud Lacombe <lacombar@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | kbuild/gconf: add dummy inline for bind_textdomain_codeset()Arnaud Lacombe2010-12-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This symbols is used by gconf. Signed-off-by: Arnaud Lacombe <lacombar@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | kbuild/nconf: fix spaces damageArnaud Lacombe2010-12-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Arnaud Lacombe <lacombar@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | kconfig: nuke second argument of conf_write_symbol()Arnaud Lacombe2010-12-151-13/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replacing S_TRISTATE by S_BOOLEAN is a no-op for conf_write_symbol(). Signed-off-by: Arnaud Lacombe <lacombar@gmail.com> [mmarek: Fix unused variable warning in conf_write()] Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | kconfig: do not define AUTOCONF_INCLUDEDArnaud Lacombe2010-12-151-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | AUTOCONF_INCLUDED is not checked is not used within the tree and its parent header, `autoconf.h', is safe to be re-included. Signed-off-by: Arnaud Lacombe <lacombar@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* | | | | Merge branch 'kbuild' of ↵Linus Torvalds2011-01-108-58/+83
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: mkuboot.sh: Fail if mkimage is missing gen_init_cpio: checkpatch fixes gen_init_cpio: Avoid race between call to stat() and call to open() modpost: Fix address calculation in reloc_location() Make fixdep error handling more explicit checksyscalls: Fix stand-alone usage modpost: Put .zdebug* section on white list kbuild: fix interaction of CONFIG_IKCONFIG and KCONFIG_CONFIG kbuild: export linux/{a.out,kvm,kvm_para}.h on headers_install_all kbuild: introduce HDR_ARCH_LIST for headers_install_all headers_install: check exit status of unifdef gen_init_cpio: remove leading `/' from file names scripts/genksyms: fix header usage fixdep: use hash table instead of a single array
| * | | | | mkuboot.sh: Fail if mkimage is missingRoland Stigge2011-01-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | on building an uImage, I get: $ make uImage CHK include/linux/version.h CHK include/generated/utsrelease.h make[1]: `include/generated/mach-types.h' is up to date. CALL scripts/checksyscalls.sh CHK include/generated/compile.h Kernel: arch/arm/boot/Image is ready SHIPPED arch/arm/boot/compressed/lib1funcs.S AS arch/arm/boot/compressed/lib1funcs.o LD arch/arm/boot/compressed/vmlinux OBJCOPY arch/arm/boot/zImage Kernel: arch/arm/boot/zImage is ready UIMAGE arch/arm/boot/uImage "mkimage" command not found - U-Boot images will not be built Image arch/arm/boot/uImage is ready $ I.e. it says: "uImage is ready" even though the uImage file doesn't exist because mkimage is missing. I propose the attached patch. Signed-off-by: Roland Stigge <stigge@antcom.de> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | | modpost: Fix address calculation in reloc_location()Olof Johansson2010-12-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a segfault in modpost that is observed when the gold linker is used to link the input objects. The problem is that reloc_location (modpost.c) is computing the address of the relocation target incorrectly. Here, elf->hdr points to the beginning of the ELF file in memory, sechdr points to the relocation section header, section is the index of the section being relocated, and sechdrs[section].sh_offset would be the offset of that section, relative to the beginning of the ELF file. Adding elf->hdr + sechdrs[section].sh_offset gives you the address of the beginning of the section, and adding r->r_offset to that gives you the address of the location to be relocated. You do not need to subtract sechdrs[section].sh_addr from that -- the result of this is an address outside the file, and causes the segfault when addend_386_rel tries to dereference it. This bug is not observed when GNU ld is used to link the inputs. The object file ubuntu/omnibook/omnibook.o is the result of an ld -r of several other files. When GNU ld does an ld -r, it sets the vaddr field for each section to 0, but gold lays out the section addresses sequentially instead: Section Headers: [Nr] Name Type Addr Off Size ES Flg Lk Inf Al [ 0] NULL 00000000 000000 000000 00 0 0 0 [ 1] .text PROGBITS 00000000 000034 004794 00 AX 0 0 4 [ 2] .data PROGBITS 0000b9d0 0047c8 0009c0 00 WA 0 0 4 [ 3] .bss NOBITS 000162f8 005188 00013c 00 WA 0 0 4 [ 4] .rodata.str1.1 PROGBITS 00004f2d 0052c4 001b1a 01 AMS 0 0 1 [ 5] .init.text PROGBITS 00004794 006dde 0005fa 00 AX 0 0 1 [ 6] .exit.text PROGBITS 00004d8e 0073d8 00018a 00 AX 0 0 1 ... So the bug in the tool remained undiscovered because the section's vaddr always happened to be 0. Signed-off-by: Raymes Khoury <raymes@google.com> Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | | Make fixdep error handling more explicitBen Gamari2010-12-221-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also add missing error handling to fstat call Signed-off-by: Ben Gamari <bgamari.foss@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | | checksyscalls: Fix stand-alone usageGeert Uytterhoeven2010-12-201-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The usage help in the comments - refers to the wrong script name, - doesn't mention that $srctree must be set. Hence correct the script name, and derive the source tree path from the script path, so we no longer need to rely on $srctree being set by the caller. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | | modpost: Put .zdebug* section on white listH.J. Lu2010-12-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "as --compress-debug-sections" will generate compressed debug sections with section names ".zdebug*". This patch puts .zdebug* section on white list. Signed-off-by: H.J. Lu <hjl.tools@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | | kbuild: introduce HDR_ARCH_LIST for headers_install_allKirill A. Shutemov2010-12-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using HDR_ARCH_LIST you can specify subset of architectures you want to get headers for. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | | Merge commit 'v2.6.37-rc1' into kbuild/kbuildMichal Marek2010-12-1477-1575/+5850
| |\ \ \ \ \ | | | |_|/ / | | |/| | |
| * | | | | headers_install: check exit status of unifdefMike Frysinger2010-12-141-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If unifdef fails for any reason (like segfaulting), we should be aborting the install steps. So check its exit status in this unlikely scenario. Reported-by: Diego Elio Pettenò <flameeyes@gentoo.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | | scripts/genksyms: fix header usageArnaud Lacombe2010-11-252-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | FreeBSD does not like <malloc.h> when __STDC__ is defined, use the standard <stdlib.h> instead. Signed-off-by: Arnaud Lacombe <lacombar@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | | | | fixdep: use hash table instead of a single arrayEric Dumazet2010-11-111-48/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I noticed fixdep uses ~2% of cpu time in kernel build, in function use_config() fixdep spends a lot of cpu cycles in linear searches in its internal string array. With about 400 stored strings per dep file, this begins to be noticeable. Convert fixdep to use a hash table. kbuild results on my x86_64 allmodconfig Before patch : real 10m30.414s user 61m51.456s sys 8m28.200s real 10m12.334s user 61m50.236s sys 8m30.448s real 10m42.947s user 61m50.028s sys 8m32.380s After: real 10m8.180s user 61m22.506s sys 8m32.384s real 10m35.039s user 61m21.654s sys 8m32.212s real 10m14.487s user 61m23.498s sys 8m32.312s Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
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