24 Mar, 2013
1 commit
18 Mar, 2013
1 commit
11 Mar, 2013
1 commit
04 Mar, 2013
1 commit
28 Feb, 2013
1 commit
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Pull kbuild changes from Michal Marek:
- Alias generation in modpost is cross-compile safe.
- kernel/timeconst.h is now generated using a bc script instead of
perl.- scripts/link-vmlinux.sh now works with an alternative
$KCONFIG_CONFIG.- destination-y for exported headers is supported in Kbuild files
again.- depmod is called with -P $CONFIG_SYMBOL_PREFIX on architectures that
need it.- CONFIG_DEBUG_INFO_REDUCED disables var-tracking
- scripts/setlocalversion works with too much translated locales ;)
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: Fix reading of .config in link-vmlinux.sh
kbuild: Unset language specific variables in setlocalversion script
Kbuild: Disable var tracking with CONFIG_DEBUG_INFO_REDUCED
depmod: pass -P $CONFIG_SYMBOL_PREFIX
kbuild: Fix destination-y for installed headers
scripts/link-vmlinux.sh: source variables from KCONFIG_CONFIG
kernel: Replace timeconst.pl with a bc script
mod/file2alias: make modalias generation safe for cross compiling
26 Feb, 2013
1 commit
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Pull module update from Rusty Russell:
"The sweeping change is to make add_taint() explicitly indicate whether
to disable lockdep, but it's a mechanical change."* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
MODSIGN: Add option to not sign modules during modules_install
MODSIGN: Add -s option to sign-file
MODSIGN: Specify the hash algorithm on sign-file command line
MODSIGN: Simplify Makefile with a Kconfig helper
module: clean up load_module a little more.
modpost: Ignore ARC specific non-alloc sections
module: constify within_module_*
taint: add explicit flag to show whether lock dep is still OK.
module: printk message when module signature fail taints kernel.
22 Feb, 2013
2 commits
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Newer gcc enables the var-tracking pass with -g to keep track which
registers contain which variables. This is one of the slower passes in gcc.With reduced debug info (aimed at objdump -S, but not using a full debugger)
we don't need this fine grained tracking. But it was still enabled
because -g was enabled. Disable it explicitely for DEBUG_INFO_REDUCED.On my 8T workstation this gives me about a 12 second gain in building
a reasonable kernel config (2min16 vs 2min28) with DEBUG_INFO_REDUCED.
With full DEBUG_INFO it takes 2min46The actual improvement in user time taken by the compiler is much higher
(all CPU combined user time 15min5s vs 16m30 before)
but the usual amdahl bottleneck on the linker prevents more speedup.
It still saves some more energy and keeps cycles for other things.Signed-off-by: Andi Kleen
Signed-off-by: Michal Marek -
On architectures which have symbol prefixes, depmod emits lots of
warnings like this:WARNING: $module.ko needs unknown symbol $symbol
This is because depmod isn't being passed the -P
arguments to specify the symbol prefix to ignore. This option is
included since the 3.13 release of module-init-tools.Update scripts/depmod.sh to take extra arguments for the symbol prefix
(required but may be empty), and update the main Makefile to always pass
"$(CONFIG_SYMBOL_PREFIX)" to scripts/depmod.sh.If the provided symbol prefix is non-empty, scripts/depmod.sh checks if
depmod --version reports module-init-tools with a version number < 3.13
otherwise it appends -P $SYMBOL_PREFIX to the depmod command line.Signed-off-by: James Hogan
Cc: Michal Marek
Cc: linux-kbuild@vger.kernel.org
Cc: Mike Frysinger
Cc: Yoshinori Sato
Cc: uclinux-dist-devel@blackfin.uclinux.org
Signed-off-by: Michal Marek
20 Feb, 2013
1 commit
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Pull two x86 kernel build changes from Ingo Molnar:
"The first change modifies how 'make oldconfig' works on cross-bitness
situations on x86. It was felt the new behavior of preserving the
bitness of the .config is more logical. This is a leftover of the
merge.The second change eliminates a Perl warning. (There's another, more
complete fix resulting of this warning fix, which second fix in flight
to you via the kbuild tree, which will remove the timeconst.pl script
altogether.)"* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timeconst.pl: Eliminate Perl warning
x86: Default to ARCH=x86 to avoid overriding CONFIG_64BIT
19 Feb, 2013
1 commit
09 Feb, 2013
1 commit
01 Feb, 2013
1 commit
26 Jan, 2013
1 commit
25 Jan, 2013
3 commits
-
To allow the builder to sign only a subset of modules, or to sign the
modules using a key that is not available on the build machine, add
CONFIG_MODULE_SIG_ALL. If this option is unset, no modules will be
signed during build. The default is 'y', to preserve the current
behavior.Signed-off-by: Michal Marek
Acked-by: David Howells
Signed-off-by: Rusty Russell -
Make the script usable without a .config file.
Signed-off-by: Michal Marek
Acked-by: David Howells
Signed-off-by: Rusty Russell -
Use the target compiler to compute the offsets for the fields of the
device_id structures, so that it won't be broken by different alignments
between the host and target ABIs.This also fixes missing endian corrections for some modaliases.
Signed-off-by: Andreas Schwab
Signed-off-by: Michal Marek
23 Jan, 2013
1 commit
-
By popular demand, arch/aarch64 is now known as arch/arm64. However,
uname -m (and indeed the GNU triplet) still use aarch64 as the machine
string.This patch fixes native builds of both the kernel and perf tools by
updating the relevant Makefiles to munge the output of uname -m and
set the ARCH variable appropriately.Cc:
Signed-off-by: Will Deacon
Signed-off-by: Catalin Marinas
18 Jan, 2013
1 commit
10 Jan, 2013
1 commit
03 Jan, 2013
1 commit
22 Dec, 2012
1 commit
21 Dec, 2012
2 commits
-
It is easy to waste a bunch of time when one takes a 32-bit .config
from a test machine and try to build it on a faster 64-bit system, and
its existing setting of CONFIG_64BIT=n gets *changed* to match the
build host. Similarly, if one has an existing build tree it is easy
to trash an entire build tree that way.This is because the default setting for $ARCH when discovered from
'uname' is one of the legacy pre-x86-merge values (i386 or x86_64),
which effectively force the setting of CONFIG_64BIT to match. We should
default to ARCH=x86 instead, finally completing the merge that we
started so long ago.This patch preserves the behaviour of the legacy ARCH settings for commands
such as:make ARCH=x86_64 randconfig
make ARCH=i386 randconfig... since making the value of CONFIG_64BIT actually random in that situation
is not desirable.In time, perhaps we can retire this legacy use of the old ARCH= values.
We already have a way to override values for *any* config option, using
$KCONFIG_ALLCONFIG, so it could be argued that we don't necessarily need
to keep ARCH={i386,x86_64} around as a special case just for overriding
CONFIG_64BIT.We'd probably at least want to add a way to override config options from
the command line ('make CONFIG_FOO=y oldconfig') before we talk about doing
that though.Signed-off-by: David Woodhouse
Link: http://lkml.kernel.org/r/1356040315.3198.51.camel@shinybook.infradead.org
Signed-off-by: H. Peter Anvin -
Pull kbuild changes from Michal Marek:
"The kbuild changes are minimal this time:- scripts/pnmlogo fix for some newer format
- minor top-level Makefile cleanup
- fix for a v3.5 regression with make clean M="
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: Do not remove vmlinux when cleaning external module
scripts/pnmtologo: fix for plain PBM
kbuild: Remove reference to uninitialised variable
19 Dec, 2012
1 commit
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Pull module update from Rusty Russell:
"Nothing all that exciting; a new module-from-fd syscall for those who
want to verify the source of the module (ChromeOS) and/or use standard
IMA on it or other security hooks."* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
MODSIGN: Fix kbuild output when using default extra_certificates
MODSIGN: Avoid using .incbin in C source
modules: don't hand 0 to vmalloc.
module: Remove a extra null character at the top of module->strtab.
ASN.1: Use the ASN1_LONG_TAG and ASN1_INDEFINITE_LENGTH constants
ASN.1: Define indefinite length marker constant
moduleparam: use __UNIQUE_ID()
__UNIQUE_ID()
MODSIGN: Add modules_sign make target
powerpc: add finit_module syscall.
ima: support new kernel module syscall
add finit_module syscall to asm-generic
ARM: add finit_module syscall to ARM
security: introduce kernel_module_from_file hook
module: add flags arg to sys_finit_module()
module: add syscall to load module from fd
14 Dec, 2012
1 commit
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If CONFIG_MODULE_SIG is set, and 'make modules_sign' is called then this
patch will cause the modules to get a signature appended. The make target
is intended to be run after 'make modules_install', and will modify the
modules in-place in the installed location. It can be used to produce
signed modules after they have been processed by distribution build
scripts.Signed-off-by: Josh Boyer
Signed-off-by: Rusty Russell (minor typo fix)
11 Dec, 2012
1 commit
09 Dec, 2012
1 commit
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Since commit 1f2bfbd00e466ff3489b2ca5cc75b1cccd14c123 "kbuild:
link of vmlinux moved to a script" make clean with M=
argument (so cleaning external module) removes vmlinux,
System.map and couple of other files from the *main* kernel
build directory! This not what was happening before and almost
certainly not what one would expect.This patch moves makes the clean target of the script called
only when !KBUILD_EXTMOD.Signed-off-by: Pawel Moll
Cc: stable@vger.kernel.org [v3.5+]
Signed-off-by: Michal Marek
04 Dec, 2012
1 commit
02 Dec, 2012
1 commit
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Pull perf fixes from Ingo Molnar:
"This is mostly about unbreaking architectures that took the UAPI
changes in the v3.7 cycle, plus misc fixes."* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf kvm: Fix building perf kvm on non x86 arches
perf kvm: Rename perf_kvm to perf_kvm_stat
perf: Make perf build for x86 with UAPI disintegration applied
perf powerpc: Use uapi/unistd.h to fix build error
tools: Pass the target in descend
tools: Honour the O= flag when tool build called from a higher Makefile
tools: Define a Makefile function to do subdir processing
x86: Export asm/{svm.h,vmx.h,perf_regs.h}
perf tools: Fix strbuf_addf() when the buffer needs to grow
perf header: Fix numa topology printing
perf, powerpc: Fix hw breakpoints returning -ENOSPC
26 Nov, 2012
1 commit
20 Nov, 2012
2 commits
-
Verbose output variable is unnecessary because the command's echo is
already surpressed. Additionally because the block defines skip-makefile
the variable Q is not defined within the makefile, which can cause
problems if Q is defined in the users environment.Signed-off-by: Charles Keepax
Signed-off-by: Michal Marek -
Honour the O= flag that was passed to a higher level Makefile and then passed
down as part of a tool build.To make this work, the top-level Makefile passes the original O= flag and
subdir=tools to the tools/Makefile, and that in turn passes
subdir=$(O)/$(subdir)/foodir when building tool foo in directory
$(O)/$(subdir)/foodir (where the intervening slashes aren't added if an
element is missing).For example, take perf. This is found in tools/perf/. Assume we're building
into directory ~/zebra/, so we pass O=~/zebra to make. Dependening on where
we run the build from, we see:make run in dir $(OUTPUT) dir
======================= ==================
linux ~/zebra/tools/perf/
linux/tools ~/zebra/perf/
linux/tools/perf ~/zebra/and if O= is not set, we get:
make run in dir $(OUTPUT) dir
======================= ==================
linux linux/tools/perf/
linux/tools linux/tools/perf/
linux/tools/perf linux/tools/perf/The output directories are created by the descend function if they don't
already exist.Signed-off-by: David Howells
Cc: Borislav Petkov
Cc: Ingo Molnar
Cc: Linus Torvalds
Cc: Namhyung Kim
Cc: Paul Mackerras
Cc: Thomas Gleixner
Link: http://lkml.kernel.org/r/1378.1352379110@warthog.procyon.org.uk
Signed-off-by: Arnaldo Carvalho de Melo
17 Nov, 2012
1 commit
11 Nov, 2012
1 commit
05 Nov, 2012
1 commit
29 Oct, 2012
1 commit
21 Oct, 2012
1 commit
20 Oct, 2012
1 commit
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Turn sign-file into perl and merge in x509keyid. The latter doesn't
need to be a separate script as it doesn't actually need to work out the
SHA1 sum of the X.509 certificate itself, since it can get that from the
X.509 certificate.Signed-off-by: David Howells
Signed-off-by: Linus Torvalds
19 Oct, 2012
1 commit
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Linus deleted the old code and put signing on the install command,
I fixed it to extract the keyid and signer-name within sign-file
and cleaned up that script now it always signs in-place.Some enthusiast should convert sign-key to perl and pull
x509keyid into it.Signed-off-by: Rusty Russell
Signed-off-by: Linus Torvalds
17 Oct, 2012
1 commit
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Several arch/*/include/uapi/asm/* header simply include the
corresponding file. This patch allows such files to be
specified in uapi/asm/Kbuild via "generic-y += ..." to be automatically
generated (similar to asm/Kbuild).Signed-off-by: Catalin Marinas
Signed-off-by: David Howells
Cc: Michal Marek
Cc: Arnd Bergmann
