25 May, 2011
1 commit
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* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
kbuild: make KBUILD_NOCMDDEP=1 handle empty built-in.o
scripts/kallsyms.c: fix potential segfault
scripts/gen_initramfs_list.sh: Convert to a /bin/sh script
kbuild: Fix GNU make v3.80 compatibility
kbuild: Fix passing -Wno-* options to gcc 4.4+
kbuild: move scripts/basic/docproc.c to scripts/docproc.c
kbuild: Fix Makefile.asm-generic for um
kbuild: Allow to combine multiple W= levels
kbuild: Disable -Wunused-but-set-variable for gcc 4.6.0
Fix handling of backlash character in LINUX_COMPILE_BY name
kbuild: asm-generic support
kbuild: implement several W= levels
kbuild: Fix build with binutils <= 2.19
initramfs: Use KBUILD_BUILD_TIMESTAMP for generated entries
kbuild: Allow to override LINUX_COMPILE_BY and LINUX_COMPILE_HOST macros
kbuild: Drop unused LINUX_COMPILE_TIME and LINUX_COMPILE_DOMAIN macros
kbuild: Use the deterministic mode of ar
kbuild: Call gzip with -n
kbuild: move KALLSYMS_EXTRA_PASS from Kconfig to Makefile
Kconfig: improve KALLSYMS_ALL documentationFix up trivial conflict in Makefile
20 May, 2011
1 commit
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…git/tip/linux-2.6-tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (107 commits)
perf stat: Add more cache-miss percentage printouts
perf stat: Add -d -d and -d -d -d options to show more CPU events
ftrace/kbuild: Add recordmcount files to force full build
ftrace: Add self-tests for multiple function trace users
ftrace: Modify ftrace_set_filter/notrace to take ops
ftrace: Allow dynamically allocated function tracers
ftrace: Implement separate user function filtering
ftrace: Free hash with call_rcu_sched()
ftrace: Have global_ops store the functions that are to be traced
ftrace: Add ops parameter to ftrace_startup/shutdown functions
ftrace: Add enabled_functions file
ftrace: Use counters to enable functions to trace
ftrace: Separate hash allocation and assignment
ftrace: Create a global_ops to hold the filter and notrace hashes
ftrace: Use hash instead for FTRACE_FL_FILTER
ftrace: Replace FTRACE_FL_NOTRACE flag with a hash of ignored functions
perf bench, x86: Add alternatives-asm.h wrapper
x86, 64-bit: Fix copy_[to/from]_user() checks for the userspace address limit
x86, mem: memset_64.S: Optimize memset by enhanced REP MOVSB/STOSB
x86, mem: memmove_64.S: Optimize memmove by enhanced REP MOVSB/STOSB
...
19 May, 2011
1 commit
17 May, 2011
1 commit
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When mcount is called in a section that ftrace will not modify it into
a nop, we want to warn about this. But not warn about this always. Now
if the user builds the kernel with the option RECORDMCOUNT_WARN=1 then
the build will warn about mcount callers that are ignored and will just
waste execution time.Acked-by: Michal Marek
Cc: linux-kbuild@vger.kernel.org
Link: http://lkml.kernel.org/r/20110421023738.714956282@goodmis.org
Signed-off-by: Steven Rostedt
11 May, 2011
1 commit
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According to Documentation/Changes, the kernel should be buildable with
GNU make 3.80+. Commit 88d7be031f9f975bb3f50a0b5ef3796a671e7edf (kbuild:
Use a single clean rule for kernel and external modules) introduced the
"$(or" construct, which requires make 3.81. This causes "make clean" to
malfunction when it is used with external modules.Replace "$(or" with an equivalent "$(if" expression, to restore backward
compatibility.Signed-off-by: Kevin Cernekee
Cc: stable@kernel.org
Signed-off-by: Michal Marek
10 May, 2011
1 commit
04 May, 2011
1 commit
03 May, 2011
2 commits
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Starting with 4.4, gcc will happily accept -Wno- in the
cc-option test and complain later when compiling a file that has some
other warning. This rather unexpected behavior is intentional as per
http://gcc.gnu.org/PR28322, so work around it by testing for support of
the opposite option (without the no-). Introduce a new Makefile function
cc-disable-warning that does this and update two uses of cc-option in
the toplevel Makefile.Reported-and-tested-by: Stephen Rothwell
Signed-off-by: Michal Marek -
Move docproc from scripts/basic to scripts so it is only built for *doc
targets instead of every time the kernel is built.
02 May, 2011
1 commit
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Add support for make W=12, make W=123 and so on, to enable warnings from
multiple W= levels. Normally, make W= does not include warnings
from the previous level.Signed-off-by: Michal Marek
Acked-by: Sam Ravnborg
Reviewed-By: Valdis Kletnieks
29 Apr, 2011
2 commits
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Disable the new -Wunused-but-set-variable that was added in gcc 4.6.0
It produces more false positives than useful warnings.This can still be enabled using W=1
Signed-off-by: Dave Jones
Acked-by: Sam Ravnborg
Tested-by: Sam Ravnborg
Signed-off-by: Michal Marek -
There is an increasing amount of header files
shared between individual architectures in asm-generic.
To avoid a lot of dummy wrapper files that just
include the corresponding file in asm-generic provide
some basic support in kbuild for this.With the following patch an architecture can maintain
a list of files in the file arch/$(ARCH)/include/asm/KbuildTo use a generic file just add:
generic-y +=
For each file listed kbuild will generate the necessary
wrapper in arch/$(ARCH)/include/generated/asm.When installing userspace headers a wrapper is likewise created.
The original inspiration for this came from the unicore32
patchset - although a different method is used.The patch includes several improvements from Arnd Bergmann.
Michael Marek contributed Makefile.asm-generic.Remis Baima did an intial implementation along to achive
the same - see https://patchwork.kernel.org/patch/13352/Signed-off-by: Sam Ravnborg
Acked-by: Guan Xuetao
Tested-by: Guan Xuetao
Acked-by: Arnd Bergmann
Cc: Remis Lima Baima
Signed-off-by: Michal Marek
28 Apr, 2011
1 commit
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Building a kernel with "make W=1" produces far too much noise to be
useful.Divide the warning options in three groups:
W=1 - warnings that may be relevant and does not occur too often
W=2 - warnings that occur quite often but may still be relevant
W=3 - the more obscure warnings, can most likely be ignoredWhen building the whole kernel, those levels produce:
W=1 - 4859 warnings
W=2 - 1394 warnings
W=3 - 86666 warningsrespectively. Warnings have been counted with Geert's script at
http://www.kernel.org/pub/linux/kernel/people/geert/linux-log/linux-log-summary.pl
Many warnings occur from .h files so fixing one file may have a nice
effect on the total number of warnings.With these changes I am actually tempted to try W=1 now and then.
Previously there was just too much noise.Borislav:
- make the W= levels exclusive
- move very noisy and making little sense for the kernel warnings to W=3
- drop -Woverlength-strings due to useless warning message
- copy explanatory text for the different warning levels to 'make help'
- recount warnings per levelSigned-off-by: Sam Ravnborg
Signed-off-by: Borislav Petkov
Cc: Dave Jones
Cc: Geert Uytterhoeven
Signed-off-by: Michal Marek
27 Apr, 2011
1 commit
20 Apr, 2011
1 commit
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The D option of ar is only available in newer versions.
Signed-off-by: Michal Marek
19 Apr, 2011
1 commit
15 Apr, 2011
1 commit
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At the moment we have the CONFIG_KALLSYMS_EXTRA_PASS Kconfig switch,
which users can enable or disable while configuring the kernel. This
option is then used by 'make' to determine whether an extra kallsyms
pass is needed or not.However, this approach is not nice and confusing, and this patch moves
CONFIG_KALLSYMS_EXTRA_PASS from Kconfig to Makefile instead. The
rationale is below.1. CONFIG_KALLSYMS_EXTRA_PASS is really about the build time, not
run-time. There is no real need for it to be in Kconfig. It is
just an additional work-around which should be used only in rare
cases, when someone breaks kallsyms, so Kbuild/Makefile is much
better place for this option.
2. Grepping CONFIG_KALLSYMS_EXTRA_PASS shows that many defconfigs have
it enabled, probably not because they try to work-around a kallsyms
bug, but just because the Kconfig help text is confusing and does
not really make it clear that this option should not be used unless
except when kallsyms is broken.
3. And since many people have CONFIG_KALLSYMS_EXTRA_PASS enabled in
their Kconfig, we do might fail to notice kallsyms bugs in time. E.g.,
many testers use "make allyesconfig" to test builds, which will enable
CONFIG_KALLSYMS_EXTRA_PASS and kallsyms breakage will not be noticed.To address that, this patch:
1. Kills CONFIG_KALLSYMS_EXTRA_PASS
2. Changes Makefile so that people can use "make KALLSYMS_EXTRA_PASS=1"
to enable the extra pass if needed. Additionally, they may define
KALLSYMS_EXTRA_PASS as an environment variable.
3. By default KALLSYMS_EXTRA_PASS is disabled and if kallsyms has issues,
"make" should print a warning and suggest using KALLSYMS_EXTRA_PASSSigned-off-by: Artem Bityutskiy
[mmarek: Removed make help text, is not necessary]
Signed-off-by: Michal Marek
12 Apr, 2011
1 commit
06 Apr, 2011
1 commit
30 Mar, 2011
1 commit
22 Mar, 2011
1 commit
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* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
kbuild: Make DEBUG_SECTION_MISMATCH selectable, but not on by default
genksyms: Regenerate lexer and parser
genksyms: Track changes to enum constants
genksyms: simplify usage of find_symbol()
genksyms: Add helpers for building string lists
genksyms: Simplify printing of symbol types
genksyms: Simplify lexer
genksyms: Do not paste the bison header file to lex.c
modpost: fix trailing comma
KBuild: silence "'scripts/unifdef' is up to date."
kbuild: Add extra gcc checks
kbuild: reenable section mismatch analysis
unifdef: update to upstream version 2.5
21 Mar, 2011
1 commit
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* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
scripts/extract-ikconfig: add xz compression support
kbuild: add GNU GLOBAL tags generation
setlocalversion: update mercurial tag parsing
19 Mar, 2011
1 commit
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (47 commits)
doc: CONFIG_UNEVICTABLE_LRU doesn't exist anymore
Update cpuset info & webiste for cgroups
dcdbas: force SMI to happen when expected
arch/arm/Kconfig: remove one to many l's in the word.
asm-generic/user.h: Fix spelling in comment
drm: fix printk typo 'sracth'
Remove one to many n's in a word
Documentation/filesystems/romfs.txt: fixing link to genromfs
drivers:scsi Change printk typo initate -> initiate
serial, pch uart: Remove duplicate inclusion of linux/pci.h header
fs/eventpoll.c: fix spelling
mm: Fix out-of-date comments which refers non-existent functions
drm: Fix printk typo 'failled'
coh901318.c: Change initate to initiate.
mbox-db5500.c Change initate to initiate.
edac: correct i82975x error-info reported
edac: correct i82975x mci initialisation
edac: correct commented info
fs: update comments to point correct document
target: remove duplicate include of target/target_core_device.h from drivers/target/target_core_hba.c
...Trivial conflict in fs/eventpoll.c (spelling vs addition)
17 Mar, 2011
1 commit
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While changing our build system over to use the headers_install target
as part of our klibc build, the following message started showing up in
our logs:make[2]: `scripts/unifdef' is up to date.
It turns out that the build blindly invokes a recursive make on this
target, which causes make to emit this message when the target is
already up to date. This isn't seen for most targets as the rest of the
build relies primarily on the default target and on PHONY targets when
invoking make recursively.Silence the above message when building unifdef as part of
headers_install by hiding it behind a new PHONY target called
"build_unifdef" that has an empty recipe.Signed-off-by: Mike Waychison
Acked-by: WANG Cong
Signed-off-by: Michal Marek
15 Mar, 2011
1 commit
09 Mar, 2011
1 commit
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Add a 'W=1' Makefile switch which adds additional checking per build
object.The idea behind this option is targeted at developers who, in the
process of writing their code, want to do the occasionalmake W=1 [target.o]
and let gcc do more extensive code checking for them. Then, they
could eyeball the output for valid gcc warnings about various
bugs/discrepancies which are not reported during the normal build
process.For more background information and a use case, read through this
thread: http://marc.info/?l=kernel-janitors&m=129802065918147&w=2Cc: Michal Marek
Cc: linux-kbuild@vger.kernel.org
Acked-by: Sam Ravnborg
Acked-by: Ingo Molnar
Signed-off-by: Borislav Petkov
Signed-off-by: Michal Marek
08 Mar, 2011
1 commit
02 Mar, 2011
1 commit
22 Feb, 2011
1 commit
17 Feb, 2011
1 commit
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Signed-off-by: Gilles Espinasse
Signed-off-by: Jiri Kosina
16 Feb, 2011
1 commit
08 Feb, 2011
1 commit
01 Feb, 2011
1 commit
22 Jan, 2011
1 commit
19 Jan, 2011
1 commit
15 Jan, 2011
1 commit
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GNU GLOBAL (http://www.gnu.org/software/global/) is a source code tagging system
It is really cheap to support it in kbuild system.Signed-off-by: Jianbin Kang
Signed-off-by: Michal Marek
11 Jan, 2011
1 commit
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* '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
05 Jan, 2011
1 commit
29 Dec, 2010
1 commit
22 Dec, 2010
1 commit