04 Apr, 2015
1 commit
-
When building specific DTBs out of the kernel tree the vendor subdirs
(boot/dts/) are not created, ensure that they are before
building the DTB.Signed-off-by: Nathan Rossi
Signed-off-by: Michal Simek
Acked-by: Will Deacon
Signed-off-by: Olof Johansson
14 Feb, 2015
1 commit
-
Kernel Address sanitizer (KASan) is a dynamic memory error detector. It
provides fast and comprehensive solution for finding use-after-free and
out-of-bounds bugs.KASAN uses compile-time instrumentation for checking every memory access,
therefore GCC > v4.9.2 required. v4.9.2 almost works, but has issues with
putting symbol aliases into the wrong section, which breaks kasan
instrumentation of globals.This patch only adds infrastructure for kernel address sanitizer. It's
not available for use yet. The idea and some code was borrowed from [1].Basic idea:
The main idea of KASAN is to use shadow memory to record whether each byte
of memory is safe to access or not, and use compiler's instrumentation to
check the shadow memory on each memory access.Address sanitizer uses 1/8 of the memory addressable in kernel for shadow
memory and uses direct mapping with a scale and offset to translate a
memory address to its corresponding shadow address.Here is function to translate address to corresponding shadow address:
unsigned long kasan_mem_to_shadow(unsigned long addr)
{
return (addr >> KASAN_SHADOW_SCALE_SHIFT) + KASAN_SHADOW_OFFSET;
}where KASAN_SHADOW_SCALE_SHIFT = 3.
So for every 8 bytes there is one corresponding byte of shadow memory.
The following encoding used for each shadow byte: 0 means that all 8 bytes
of the corresponding memory region are valid for access; k (1
Acked-by: Michal Marek
Signed-off-by: Andrey Konovalov
Cc: Dmitry Vyukov
Cc: Konstantin Serebryany
Cc: Dmitry Chernenkov
Cc: Yuri Gribov
Cc: Konstantin Khlebnikov
Cc: Sasha Levin
Cc: Christoph Lameter
Cc: Joonsoo Kim
Cc: Dave Hansen
Cc: Andi Kleen
Cc: Ingo Molnar
Cc: Thomas Gleixner
Cc: "H. Peter Anvin"
Cc: Christoph Lameter
Cc: Pekka Enberg
Cc: David Rientjes
Cc: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
22 Oct, 2014
1 commit
-
Move dtbs install rules to Makefile.dtbinst. This change is needed to
implement support for dts vendor subdirs. The change makes Makefiles
easier and smaller as no longer the dtbs_install rule needs to be
defined. Another advantage is that install goals are not encoded in
targets anymore (%.dtb_dtbinst_).Signed-off-by: Robert Richter
19 Aug, 2014
1 commit
-
The comment in scripts/Makefile.build says as follows:
We would rather have a list of rules like
foo.o: $(foo-objs)
but that's not so easy, so we rather make all composite objects depend
on the set of all their partsThis commit makes it possible!
For example, assume a Makefile like this
obj-m = foo.o bar.o
foo-objs := foo1.o foo2.o
bar-objs := bar1.o bar2.oWithout this patch, foo.o depends on all of
foo1.o foo2.o bar1.o bar2.o.
It looks funny that foo.o is regenerated when bar1.c is updated.Now we can handle the dependency of foo.o and bar.o separately.
Signed-off-by: Masahiro Yamada
Signed-off-by: Michal Marek
30 Apr, 2014
1 commit
-
Signed-off-by: Masahiro Yamada
Signed-off-by: Michal Marek
08 Apr, 2014
1 commit
-
Pull kbuild changes from Michal Marek:
- cleanups in the main Makefiles and Documentation/DocBook/Makefile
- make O=... directory is automatically created if needed
- mrproper/distclean removes the old include/linux/version.h to make
life easier when bisecting across the commit that moved the version.h
file* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: docbook: fix the include error when executing "make help"
kbuild: create a build directory automatically for out-of-tree build
kbuild: remove redundant '.*.cmd' pattern from make distclean
kbuild: move "quote" to Kbuild.include to be consistent
kbuild: docbook: use $(obj) and $(src) rather than specific path
kbuild: unconditionally clobber include/linux/version.h on distclean
kbuild: docbook: specify KERNELDOC dependency correctly
kbuild: docbook: include cmd files more simply
kbuild: specify build_docproc as a phony target
30 Mar, 2014
1 commit
-
Signed-off-by: Masahiro Yamada
Signed-off-by: Michal Marek
04 Mar, 2014
1 commit
-
Linux 3.14-rc5
20 Feb, 2014
2 commits
-
Unlike other build products in the Linux kernel, there is no 'make
*install' mechanism to put devicetree blobs in a standard place.This commit adds a new 'dtbs_install' make target which copies all of
the dtbs into the INSTALL_DTBS_PATH directory. INSTALL_DTBS_PATH can be
set before calling make to change the default install directory. If not
set then it defaults to:$INSTALL_PATH/dtbs/$KERNELRELEASE.
This is done to keep dtbs from different kernel versions separate until
things have settled down. Once the dtbs are stable, and not so strongly
linked to the kernel version, the devicetree files will most likely move
to their own repo. Users will need to upgrade install scripts at that
time.v7: (reworked by Grant Likely)
- Moved rules from arch/arm/Makefile to arch/arm/boot/dts/Makefile so
that each dtb install could have a separate target and be reported as
part of the make output.
- Fixed dependency problem to ensure $KERNELRELEASE is calculated before
attempting to install
- Removed option to call external script. Copying the files should be
sufficient and a build system can post-process the install directory.
Despite the fact an external script is used for installing the kernel,
I don't think that is a pattern that should be encouraged. I would
rather see buildroot type tools post process the install directory to
rename or move dtb files after installing to a staging directory.
- Plus it is easy to add a hook after the fact without blocking the
rest of this feature.
- Move the helper targets into scripts/Makefile.lib with the rest of the
common dtb rulesSigned-off-by: Jason Cooper
Signed-off-by: Grant Likely
Cc: Michal Marek
Cc: Russell King
Cc: Rob Herring -
The testcase data is usable by any platform. This patch moves it into
the drivers/of directory so it can be included by any architecture.Using the test cases requires manually adding #include
to the end of the boards .dtsi file and enabling CONFIG_OF_SELFTEST. Not
pretty though. A useful project would be to make the testcase code
easier to execute.Signed-off-by: Grant Likely
11 Jul, 2013
1 commit
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Pull kbuild updates from Michal Marek:
- fix for make headers_install argv explosion with too long path
- scripts/setlocalversion does not call git update-index needlessly
- fix for the src.rpm produced by make rpm-pkg. The new make
image_name can be useful also for other packaging tools.
- scripts/mod/devicetable-offsets.o is not rebuilt during each make run
- make modules_install dependency fix
- scripts/sortextable portability fix
- fix for kbuild to generate the output directory for all object files
in subdirs.
- a couple of minor fixes* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: create directory for dir/file.o
tools/include: use stdint types for user-space byteshift headers
Makefile: Fix install error with make -j option
Fix a build warning in scripts/mod/file2alias.c
improve modalias building
scripts/mod: Spelling s/DEVICEVTABLE/DEVICETABLE/
kbuild: fix error when building from src rpm
scripts/setlocalversion on write-protected source tree
Makefile.lib: align DTB quiet_cmd
kbuild: fix make headers_install when path is too long
10 Jul, 2013
1 commit
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Add support for extracting LZ4-compressed kernel images, as well as
LZ4-compressed ramdisk images in the kernel boot process.Signed-off-by: Kyungsik Lee
Cc: "H. Peter Anvin"
Cc: Ingo Molnar
Cc: Thomas Gleixner
Cc: Russell King
Cc: Borislav Petkov
Cc: Florian Fainelli
Cc: Yann Collet
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
04 Jul, 2013
1 commit
-
When add a obj with dir to obj-y, like this
obj-y += dir/file.o
The $(obj)/dir not created, this patch fix this.
When try to add a file(which in a subdir) to my board's obj-y, the build
progress crashed.For example, I use at91rm9200ek board, and in kernel dir run:
mkdir objtree
make O=objtree at91rm9200_defconfig
mkdir arch/arm/mach-at91/dir
touch arch/arm/mach-at91/dir/file.cand edit arch/arm/mach-at91/dir/file.c to add some code.
then edit arch/arm/mach-at91/Makefile, change the following line:obj-$(CONFIG_MACH_AT91RM9200EK) += board-rm9200ek.o
to:
obj-$(CONFIG_MACH_AT91RM9200EK) += board-rm9200ek.o dir/file.o
Now build it:
make O=objtree
Then the error appears:
...
CC arch/arm/mach-at91/board-rm9200dk.o
CC arch/arm/mach-at91/board-rm9200ek.o
CC arch/arm/mach-at91/dir/file.o
linux-2.6/arch/arm/mach-at91/dir/file.c:5:
fatal error: opening dependency file
arch/arm/mach-at91/dir/.file.o.d: No such file or directoryCheck the objtree:
LANG=en ls objtree/arch/arm/mach-at91/dir
ls: cannot access objtree/arch/arm/mach-at91/dir: No such file or directoryIt's apparently that the target dir not created for file.o
Check kbuild source code. It seems that kbuild create dirs for that in
$(obj-dirs). But if the dir need not to create a built-in.o, It should
never in $(obj-dirs).So I make this patch to make sure It in $(obj-dirs)
this bug caused by commit
f5fb976520a53f45f8bbf2e851f16b3b5558d485Signed-off-by: 张忠山
Signed-off-by: Michal Marek
14 Jun, 2013
1 commit
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Various temporary files used when building DTB files were not suffixed with
.tmp and therefore were not cleaned up by "make clean".Signed-off-by: Ian Campbell
Reviewed-by: Stephen Warren
Tested-by: Stephen Warren
Signed-off-by: Grant Likely
13 Jun, 2013
1 commit
-
The unaligned dtb.S filename in make output started to irritate me:
DTC arch/metag/boot/dts/skeleton.dtb
DTB arch/metag/boot/dts/skeleton.dtb.S
AS arch/metag/boot/dts/skeleton.dtb.o
LD arch/metag/boot/dts/built-in.oAdd an extra space to quiet_cmd_dt_S_dtb so the dtb.S filename aligns
with all the others.Signed-off-by: James Hogan
Cc: Dirk Brandewie
Cc: Grant Likely
Cc: trivial@kernel.org
Signed-off-by: Michal Marek
23 May, 2013
1 commit
-
In commit b40b25ff (kbuild: always run gcc -E on *.dts, remove cmd_dtc_cpp),
dts building was changed to always use the C preprocessor. This meant
that the .dts file passed to dtc is not the original, but the
preprocessed one.When compiling with a separate build directory (i.e., with O=), this
preprocessed file will not live in the same directory as the original.
When the .dts file includes .dtsi files, dtc will look for them in the
build directory, not in the source directory and compilation will fail.The commit referenced above tried to fix this by passing arch/*/boot/dts
as an include path to dtc. However, for mips, the .dts files are not in
this directory, so dts compilation on mips breaks for some targets.Instead of hardcoding this particular include path, this commit just
uses the directory of the .dts file that is being compiled, which
effectively restores the previous behaviour wrt includes. For most .dts
files, this path is just the same as the previous hardcoded
arch/*/boot/dts path.This was tested on a mips (rt3052) and an arm (bcm2835) target.
Signed-off-by: Matthijs Kooijman
Reviewed-by: Stephen Warren
Signed-off-by: Michal Marek
06 May, 2013
1 commit
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Pull mudule updates from Rusty Russell:
"We get rid of the general module prefix confusion with a binary config
option, fix a remove/insert race which Never Happens, and (my
favorite) handle the case when we have too many modules for a single
commandline. Seriously, the kernel is full, please go away!"* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
modpost: fix unwanted VMLINUX_SYMBOL_STR expansion
X.509: Support parse long form of length octets in Authority Key Identifier
module: don't unlink the module until we've removed all exposure.
kernel: kallsyms: memory override issue, need check destination buffer length
MODSIGN: do not send garbage to stderr when enabling modules signature
modpost: handle huge numbers of modules.
modpost: add -T option to read module names from file/stdin.
modpost: minor cleanup.
genksyms: pass symbol-prefix instead of arch
module: fix symbol versioning with symbol prefixes
CONFIG_SYMBOL_PREFIX: cleanup.
06 Apr, 2013
3 commits
-
Replace cmd_dtc with cmd_dtc_cpp, and delete the latter.
Previously, a special file extension (.dtsp) was required to trigger
the C pre-processor to run on device tree files. This was ugly. Now that
previous changes have enhanced cmd_dtc_cpp to collect dependency
information from both gcc -E and dtc, we can transparently run the pre-
processor on all device tree files, irrespective of whether they
use /include/ or #include syntax to include *.dtsi.Signed-off-by: Stephen Warren
Acked-by: Rob Herring -
Prior to this change, when compiling *.dts to *.dtb, the dependency
output from dtc would be used, and when compiling *.dtsp to *.dtb, the
dependency output from gcc -E alone would be used, despite dtc also
being invoked (on a temporary file that was guaranteed to have no
dependencies).With this change, when compiling *.dtsp to *.dtb, the dependency files
from both gcc -E and dtc are used. This will allow cmd_dtc_cpp to
replace cmd_dtc in a future change. In turn, that will allow the C pre-
processor to be run transparently on *.dts, without the need to a
separate rule or file extension to trigger it.Signed-off-by: Stephen Warren
Acked-by: Rob Herring -
The recent dtc+cpp support allows header files and C pre-processor
defines/macros to be used when compiling device tree files. These
headers will typically define various constants that are part of the
device tree bindings.The original patch which set up the dtc+cpp include path only considered
using those headers from device tree files. However, most are also
useful for kernel code which needs to interpret the device tree.In both the DT files and the kernel, I'd like to include the DT-related
headers in the same way, for example, .
That will simplify any text which discusses the DT header locations.Creating a for kernel source to use is as simple as
placing files into include/dt-bindings/.However, when compiling DT files, the include path should be restricted
so that only the dt-bindings path is available; arbitrary kernel headers
shouldn't be exposed. For this reason, create a specific include
directory for use by dtc+cpp, and symlink dt-bindings from there to the
actual location of include/dt-bindings/. For want of a better location,
place this "include chroot" into the existing dts/ directory.arch/*/boot/dts/include/dt-bindings -> ../../../../../include/dt-bindings
Some headers used by device tree files may not be useful to the kernel;
they may be used simply to aid in constructing the DT file (e.g. macros
to create a node), but not define any information that the kernel needs
to share. These may be placed directly into arch/*/boot/dts/ along with
the DT files themselves.Acked-by: Michal Marek
Acked-by: Shawn Guo
Acked-by: Rob Herring
Signed-off-by: Stephen Warren
15 Mar, 2013
1 commit
-
We have CONFIG_SYMBOL_PREFIX, which three archs define to the string
"_". But Al Viro broke this in "consolidate cond_syscall and
SYSCALL_ALIAS declarations" (in linux-next), and he's not the first to
do so.Using CONFIG_SYMBOL_PREFIX is awkward, since we usually just want to
prefix it so something. So various places define helpers which are
defined to nothing if CONFIG_SYMBOL_PREFIX isn't set:1) include/asm-generic/unistd.h defines __SYMBOL_PREFIX.
2) include/asm-generic/vmlinux.lds.h defines VMLINUX_SYMBOL(sym)
3) include/linux/export.h defines MODULE_SYMBOL_PREFIX.
4) include/linux/kernel.h defines SYMBOL_PREFIX (which differs from #7)
5) kernel/modsign_certificate.S defines ASM_SYMBOL(sym)
6) scripts/modpost.c defines MODULE_SYMBOL_PREFIX
7) scripts/Makefile.lib defines SYMBOL_PREFIX on the commandline if
CONFIG_SYMBOL_PREFIX is set, so that we have a non-string version
for pasting.(arch/h8300/include/asm/linkage.h defines SYMBOL_NAME(), too).
Let's solve this properly:
1) No more generic prefix, just CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX.
2) Make linux/export.h usable from asm.
3) Define VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR().
4) Make everyone use them.Signed-off-by: Rusty Russell
Reviewed-by: James Hogan
Tested-by: James Hogan (metag)
13 Feb, 2013
1 commit
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Device tree source files may now include header files. The intent is
that those header files define/name constants used as part of the DT
bindings. Currently this feature is open to abuse, since any kernel
header file at all can be included, This could allow device tree files
to become dependant on kernel headers files, and thus make them no
longer OS-independent. This would also prevent separating the device
tree source files from the kernel repository.Solve this by limiting the cpp include path for device tree files to
separate directories.Signed-off-by: Stephen Warren
Signed-off-by: Grant Likely
08 Feb, 2013
1 commit
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Create cmd_dtc_cpp to run the C pre-processor on *.dts file before
passing them to dtc for final compilation. This allows the use of #define
and #include within the .dts file.Acked-by: Simon Glass
Acked-by: Jean-Christophe PLAGNIOL-VILLARD
Acked-by: Michal Marek
Acked-by: Srinivas Kandagatla
Signed-off-by: Stephen Warren
Signed-off-by: Grant Likely
01 Dec, 2012
1 commit
-
All architectures that use cmd_dtc do so in almost the same way. Create
a central build rule to avoid duplication. The one difference is that
most current uses of dtc build $(obj)/%.dtb from $(src)/dts/%.dts rather
than building the .dtb in the same directory as the .dts file. This
difference will be eliminated arch-by-arch in future patches.MIPS is the exception here; it already uses the exact same rule as the
new common rule, so the duplicate is removed in this patch to avoid any
conflict. arch/mips changes courtesy of Ralf Baechle.Update Documentation/kbuild to remove the explicit call to cmd_dtc from
the example, now that the rule exists in a centralized location.Cc: Arnd Bergmann
Cc: linux-arm-kernel@lists.infradead.org
Cc: Olof Johansson
Cc: Russell King
Acked-by: Catalin Marinas
Cc: Jonas Bonn
Cc: linux@lists.openrisc.net
Cc: Aurelien Jacquiot
Cc: linux-c6x-dev@linux-c6x.org
Cc: Mark Salter
Cc: Michal Simek
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: Chris Zankel
Cc: linux-xtensa@linux-xtensa.org
Cc: Max Filippov
Signed-off-by: Ralf Baechle
Signed-off-by: Stephen Warren
Signed-off-by: Rob Herring
26 Mar, 2012
1 commit
-
All ARCHs have the same definition of MKIMAGE. Move it to Makefile.lib
to avoid duplication.All ARCHs have similar definitions of cmd_uimage. Place a sufficiently
parameterized version in Makefile.lib to avoid duplication.Signed-off-by: Stephen Warren
Acked-by: Nicolas Pitre
Tested-by: Mike Frysinger [Blackfin]
Tested-by: Michal Simek [Microblaze]
Tested-by: Guan Xuetao [unicore32]
Signed-off-by: Michal Marek
15 Jan, 2012
1 commit
-
This hooks dtc into Kbuild's dependency system.
Thus, for example, "make dtbs" will rebuild tegra-harmony.dtb if only
tegra20.dtsi has changed yet tegra-harmony.dts has not. The previous
lack of this feature recently caused me to have very confusing "git
bisect" results.For ARM, it's obvious what to add to $(targets). I'm not familiar enough
with other architectures to know what to add there. Powerpc appears to
already add various .dtb files into $(targets), but the other archs may
need something added to $(targets) to work.Signed-off-by: Stephen Warren
Acked-by: Shawn Guo
[mmarek: Dropped arch/c6x part to avoid merging commits from the middle
of the merge window]
Signed-off-by: Michal Marek
09 Jan, 2012
1 commit
-
KBUILD_MODNAME is not defined for files that are linked into multiple
modules, and trying to change reality to match documentation would
result in all sorts of trouble. E.g. options for built-in modules would
be called either foo_bar.param, foo.param, or bar.param, depending on
the configuration. So just change the comment.Signed-off-by: Michal Marek
31 Aug, 2011
1 commit
-
commit 7373f4f (kbuild: add implicit rules for parser generation)
created a implicit rule chain (%.c: %.c_shipped: %.y).
Make considers the _shipped files to be intermediate files which
causes them to be deleted if they didn't exist before make was run.
Mark the _shipped files PRECIOUS to prevent make from deleting them.Signed-off-by: Peter Foley
Acked-by: Arnaud Lacombe
Signed-off-by: Michal Marek
10 Jun, 2011
2 commits
-
This is needed to have make(1) correctly link the implicit rules which
generate the _shipped file from the lexer/parser to the final file.Signed-off-by: Arnaud Lacombe
-
Cc: David Gibson
Cc: Michal Marek
Signed-off-by: Arnaud Lacombe
18 Apr, 2011
1 commit
-
The timestamps recorded in the .gz files add no value.
Signed-off-by: Michal Marek
14 Jan, 2011
1 commit
-
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 .
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
Cc: "H. Peter Anvin"
Cc: Alain Knaff
Cc: Albin Tonnerre
Cc: Phillip Lougher
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
24 Dec, 2010
1 commit
-
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.oSigned-off-by: Dirk Brandewie
Acked-by: Michal Marek
[grant.likely@secretlab.ca: cleaned up whitespace inconsistencies]
Signed-off-by: Grant Likely
29 Oct, 2010
2 commits
-
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
initramfs: Fix build break on symbol-prefixed archs
initramfs: fix initramfs size calculation
initramfs: generalize initramfs_data.xxx.S variants
scripts/kallsyms: Enable error messages while hush up unnecessary warnings
scripts/setlocalversion: update comment
kbuild: Use a single clean rule for kernel and external modules
kbuild: Do not run make clean in $(srctree)
scripts/mod/modpost.c: fix commentary accordingly to last changes
kbuild: Really don't clean bounds.h and asm-offsets.h -
Signed-off-by: Mike Frysinger
Signed-off-by: Michal Marek
23 Sep, 2010
1 commit
-
Convert the 'dynamic debug' infrastructure to use jump labels.
Signed-off-by: Jason Baron
LKML-Reference:
Signed-off-by: Steven Rostedt
01 Jun, 2010
1 commit
-
* 'for-35' of git://repo.or.cz/linux-kbuild: (81 commits)
kbuild: Revert part of e8d400a to resolve a conflict
kbuild: Fix checking of scm-identifier variable
gconfig: add support to show hidden options that have prompts
menuconfig: add support to show hidden options which have prompts
gconfig: remove show_debug option
gconfig: remove dbg_print_ptype() and dbg_print_stype()
kconfig: fix zconfdump()
kconfig: some small fixes
add random binaries to .gitignore
kbuild: Include gen_initramfs_list.sh and the file list in the .d file
kconfig: recalc symbol value before showing search results
.gitignore: ignore *.lzo files
headerdep: perlcritic warning
scripts/Makefile.lib: Align the output of LZO
kbuild: Generate modules.builtin in make modules_install
Revert "kbuild: specify absolute paths for cscope"
kbuild: Do not unnecessarily regenerate modules.builtin
headers_install: use local file handles
headers_check: fix perl warnings
export_report: fix perl warnings
...
07 Apr, 2010
1 commit
-
Add support for the hardware version of the Hamming weight function,
popcnt, present in CPUs which advertize it under CPUID, Function
0x0000_0001_ECX[23]. On CPUs which don't support it, we fallback to the
default lib/hweight.c sw versions.A synthetic benchmark comparing popcnt with __sw_hweight64 showed almost
a 3x speedup on a F10h machine.Signed-off-by: Borislav Petkov
LKML-Reference:
Signed-off-by: H. Peter Anvin
11 Mar, 2010
1 commit
-
The output of LZO is not aligned with the other output:
...
CC drivers/usb/mon/usbmon.mod.o
LZO arch/mips/boot/compressed/vmlinux.lzo
...This patch fixes it.
Signed-off-by: Wu Zhangjin
Signed-off-by: Michal Marek
13 Jan, 2010
1 commit
-
In an x86 build with CONFIG_KERNEL_LZMA enabled and dash as sh,
arch/x86/boot/compressed/vmlinux.bin.lzma ends with
'\xf0\x7d\x39\x00' (16 bytes) instead of the 4 bytes intended and
the resulting vmlinuz fails to boot. This improves on the
previous behavior, in which the file contained the characters
'-ne ' as well, but not by much.Previous commits replaced "echo -ne" first with "/bin/echo -ne",
then "printf" in the hope of improving portability, but none of
these commands is guaranteed to support hexadecimal escapes on
POSIX systems. So use the shell to convert from hexadecimal to
octal.With this change, an LZMA-compressed kernel built with dash as sh
boots correctly again.Reported-by: Sebastian Dalfuß
Reported-by: Oliver Hartkopp
Reported-by: Michael Guntsche
Signed-off-by: Jonathan Nieder
Cc: Michael Tokarev
Cc: Alek Du
Cc: Andrew Morton
Signed-off-by: Michal Marek
