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While looking for something else I noticed that the symbol
hash function used by kconfig is quite poor. It doesn't
use any of the standard hash techniques but simply
adds up the string and then uses power of two masking,
which is both known to perform poorly.
The current x86 kconfig has over 7000 symbols.
When I instrumented it showed that the minimum hash chain
length was 16 and a significant number of them was over
30.
It didn't help that the hash table size was only 256 buckets.
This patch increases the hash table size to a larger prime
and switches to a FNV32 hash. I played around with a couple of hash
functions, but that one seemed to perform best with reasonable
hash table sizes.
Increasing the hash table size even further didn't
seem like a good idea, because there are a couple of global
walks which walk the complete hash table.
I also moved the unnamed bucket to 0. It's still the longest
of all the buckets (44 entries), but hopefully it's not
often hit except for the global walk which doesn't care.
The result is a much nicer distribution:
(first column bucket length, second number of buckets with that length)
1: 3505
2: 1236
3: 294
4: 52
5: 3
47: 1 <--- this is the unnamed symbols bucket
There are still some 5+ buckets, but increasing the hash table
even more would be likely not worth it.
This also cleans up the code slightly by removing hard coded
magic numbers.
I didn't notice a big performance difference either way
on my Nehalem system, but I presume it'll help somewhat
on slower systems.
Signed-off-by: Andi Kleen <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
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This patch fixes two problems reported by Jan Engelhardt:
1) Border is now properly placed, to always be visible
2) Long menu items are properly displayed
Reported-by: Jan Engelhardt <[email protected]>
Signed-off-by: Nir Tzachar <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
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scripts/kconfig/nconf.gui.c:23: warning: no previous prototype for 'set_normal_colors'
scripts/kconfig/nconf.gui.c:68: warning: no previous prototype for 'normal_color_theme'
scripts/kconfig/nconf.gui.c:100: warning: no previous prototype for 'no_colors_theme'
scripts/kconfig/nconf.c:455: warning: no previous prototype for 'process_special_keys'
scripts/kconfig/nconf.c:487: warning: no previous prototype for 'get_next_hot'
scripts/kconfig/nconf.c:506: warning: no previous prototype for 'canbhot'
scripts/kconfig/nconf.c:514: warning: no previous prototype for 'is_hot'
scripts/kconfig/nconf.c:522: warning: no previous prototype for 'make_hot'
scripts/kconfig/nconf.c:582: warning: no previous prototype for 'item_make'
scripts/kconfig/nconf.c:626: warning: no previous prototype for 'item_add_str'
scripts/kconfig/nconf.c:656: warning: no previous prototype for 'item_tag'
scripts/kconfig/nconf.c:668: warning: no previous prototype for 'curses_item_index'
scripts/kconfig/nconf.c:673: warning: no previous prototype for 'item_data'
scripts/kconfig/nconf.c:684: warning: no previous prototype for 'item_is_tag'
scripts/kconfig/nconf.c:691: warning: no previous prototype for 'set_config_filename'
Signed-off-by: Michal Marek <[email protected]>
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This patch was inspired by the kernel projects page, where an ncurses
replacement for menuconfig was mentioned (by Sam Ravnborg).
Building on menuconfig, this patch implements a more modern look
interface using ncurses and ncurses' satellite libraries (menu, panel,
form). The implementation does not depend on lxdialog, which is
currently distributed with the kernel.
Signed-off-by: Nir Tzachar <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
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It is the last place when the file is read, so close it.
Signed-off-by: Alexander Beregalov <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
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Help text for certain config options is very extensive (the text
includes the names of all other options the option in question depends
on). Long lines are not wrapped, making it impossible to see the list
without scrolling horizontally.
This patch adds some logic which wraps help screen lines at word
boundaries to prevent truncating.
Tested by running
ARCH=powerpc make menuconfig O=/tmp/build
which shows that the long lines are now wrapped, and
ARCH=powerpc make xconfig O=/tmp/build
to demonstrate that it still compiles and operates as expected.
Signed-off-by: Vadim Bendebury <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
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This patch adds support for decoding ARM oopses to scripts/decodecode.
The following things are handled:
- ARCH and CROSS_COMPILE environment variables are respected.
- The Code: in x86 oopses is in bytes, while it is in either words (4
bytes) or halfwords for ARM.
- Some versions of ARM objdump refuse to disassemble instructions
generated by literal constants (".word 0x..."). The workaround is to
strip the object file first.
- The faulting instruction is marked (liked so) in ARM, but <like so>
in x86.
- ARM mnemonics may include characters such as [] which need to be
escaped before being passed to sed for the "<- trapping instruction"
substitution.
Signed-off-by: Rabin Vincent <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
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This patch fixes the link error "built-in.o: no such file or directory".
The problem happens if "dirx/Makefile" contains only "obj-m += diry/
dirz/" and the empty "dirx/built-in.o" is missing. Adding $(subdir-m)
into check for builtin-target fixes this error.
Signed-off-by: Jiafu He <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
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Signed-off-by: Uwe Kleine-König <[email protected]>
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Signed-off-by: Uwe Kleine-König <[email protected]>
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Signed-off-by: Uwe Kleine-König <[email protected]>
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This prepares having a per-check whitelist of symbol names.
Signed-off-by: Uwe Kleine-König <[email protected]>
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Signed-off-by: Uwe Kleine-König <[email protected]>
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Signed-off-by: Uwe Kleine-König <[email protected]>
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Either the functions referred to in a driver struct should live in
.devinit or the driver should be registered using platform_driver_probe
(or equivalent for different driver types) with ->probe being NULL.
Signed-off-by: Uwe Kleine-König <[email protected]>
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The sym_is() compares a symbol in an attempt to automatically skip symbol
prefixes. It does this first by searching the real symbol with the normal
unprefixed symbol. But then it uses the length of the original symbol to
check the end of the substring instead of the length of the symbol it is
looking for. On non-prefixed arches, this is effectively the same thing,
so there is no problem. On prefixed-arches, since this is exceeds by just
one byte, a crash is rare and it is usually a NUL byte anyways. But every
once in a blue moon, you get the right page alignment and it segfaults.
For example, on the Blackfin arch, sym_is() will be called with the real
symbol "___mod_usb_device_table" as "symbol" when looking for the normal
symbol "__mod_usb_device_table" as "name". The substring will thus return
one byte into "symbol" and store it into "match". But then "match" will
be indexed with the length of "symbol" instead of "name" and so we will
exceed the storage. i.e. the code ends up doing:
char foo[] = "abc"; return foo[strlen(foo)+1] == '\0';
Signed-off-by: Mike Frysinger <[email protected]>
Signed-off-by: Rusty Russell <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
tracing/filters: Add comment for match callbacks
tracing/filters: Fix MATCH_FULL filter matching for PTR_STRING
tracing/filters: Fix MATCH_MIDDLE_ONLY filter matching
lib: Introduce strnstr()
tracing/filters: Fix MATCH_END_ONLY filter matching
tracing/filters: Fix MATCH_FRONT_ONLY filter matching
ftrace: Fix MATCH_END_ONLY function filter
tracing/x86: Derive arch from bits argument in recordmcount.pl
ring-buffer: Add rb_list_head() wrapper around new reader page next field
ring-buffer: Wrap a list.next reference with rb_list_head()
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When I try to use markup_oops.pl in x86, I always get:
cat 1 | perl markup_oops.pl ./vmlinux
objdump: --start-address: bad number: NaN
No matching code found
This is because in line:
if ($line =~ /EIP is at ([a-zA-Z0-9\_]+)\+0x([0-9a-f]+)\/[a-f0-9]/) {
$function = $1;
$func_offset = $2;
}
$func_offset will get a number like "0x2"
But in follow code:
my $decodestart = Math::BigInt->from_hex("0x$target") -
Math::BigInt->from_hex("0x$func_offset");
It add other ox to ox2. Then this value will be set to NaN.
So I made a small patch to fix it.
Signed-off-by: Hui Zhu <[email protected]>
Acked-by: Arjan van de Ven <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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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 <[email protected]>
Reported-by: Oliver Hartkopp <[email protected]>
Reported-by: Michael Guntsche <[email protected]>
Signed-off-by: Jonathan Nieder <[email protected]>
Cc: Michael Tokarev <[email protected]>
Cc: Alek Du <[email protected]>
Cc: Andrew Morton <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
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Maybe this will stop people emailing me about it.
Signed-off-by: Dave Jones <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Let the arch argument be overruled by bits. Otherwise, building of
external modules against a i386 target on a x86-64 host (and likely vice
versa as well) fails unless ARCH=i386 is explicitly passed to make.
Signed-off-by: Jan Kiszka <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Steven Rostedt <[email protected]>
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The following command doesn't generate any output.
`./scripts/get_maintainer.pl --no-git -f drivers/net/wireless/wl12xx/wl1271_acx.c`
An excluded "X:" pattern match in any section would cause a file not to
match any other section.
Signed-off-by: Joe Perches <[email protected]>
Reported-by: Dan Carpenter <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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This patch series adds generic support for creating and extracting
LZO-compressed kernel images, as well as support for using such images on
the x86 and ARM architectures, and support for creating and using
LZO-compressed initrd and initramfs images.
Russell King said:
: Testing on a Cortex A9 model:
: - lzo decompressor is 65% of the time gzip takes to decompress a kernel
: - lzo kernel is 9% larger than a gzip kernel
:
: which I'm happy to say confirms your figures when comparing the two.
:
: However, when comparing your new gzip code to the old gzip code:
: - new is 99% of the size of the old code
: - new takes 42% of the time to decompress than the old code
:
: What this means is that for a proper comparison, the results get even better:
: - lzo is 7.5% larger than the old gzip'd kernel image
: - lzo takes 28% of the time that the old gzip code took
:
: So the expense seems definitely worth the effort. The only reason I
: can think of ever using gzip would be if you needed the additional
: compression (eg, because you have limited flash to store the image.)
:
: I would argue that the default for ARM should therefore be LZO.
This patch:
The lzo compressor is worse than gzip at compression, but faster at
extraction. Here are some figures for an ARM board I'm working on:
Uncompressed size: 3.24Mo
gzip 1.61Mo 0.72s
lzo 1.75Mo 0.48s
So for a compression ratio that is still relatively close to gzip, it's
much faster to extract, at least in that case.
This part contains:
- Makefile routine to support lzo compression
- Fixes to the existing lzo compressor so that it can be used in
compressed kernels
- wrapper around the existing lzo1x_decompress, as it only extracts one
block at a time, while we need to extract a whole file here
- config dialog for kernel compression
[[email protected]: coding-style fixes]
[[email protected]: cleanup]
Signed-off-by: Albin Tonnerre <[email protected]>
Tested-by: Wu Zhangjin <[email protected]>
Acked-by: "H. Peter Anvin" <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Tested-by: Russell King <[email protected]>
Acked-by: Russell King <[email protected]>
Cc: Ralf Baechle <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Modified recordmcount.pl to use perl constructs that are still
understandable by C hackers that are not perl programmers.
Signed-off-by: Wolfram Sang <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Steven Rostedt <[email protected]>
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The streamline_config.pl misses the if conditions for checking
dependencies. For Kconfigs with the following construct:
if MEDIA_SUPPORT
config VIDEO_DEV
[...]
If VIDEO_DEV was enabled, the script will miss the fact that MEDIA_SUPPORT
is also needed.
This patch changes streamline_config.pl to include if conditions into
the dependencies of configs.
Reported-by: Anton Blanchard <[email protected]>
Tested-by: Anton Blanchard <[email protected]>
Signed-off-by: Steven Rostedt <[email protected]>
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If someone downloads a brand new kernel and runs localmodconfig or
localyesconfig, the ending result will report:
*** Error during update of the kernel configuration.
This is because localmodconfig and localyesconfig must create the
include/generated directory to place the autoconf.h file.
Signed-off-by: Steven Rostedt <[email protected]>
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- move check for open file in front of the writing loop
- use perl-constructs to access the array
Signed-off-by: Wolfram Sang <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Steven Rostedt <[email protected]>
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* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (71 commits)
MIPS: Lasat: Fix botched changes to sysctl code.
RTC: rtc-cmos.c: Fix warning on MIPS
MIPS: Cleanup random differences beween lmo and Linus' kernel.
MIPS: No longer hardwire CONFIG_EMBEDDED to y
MIPS: Fix and enhance built-in kernel command line
MIPS: eXcite: Remove platform.
MIPS: Loongson: Cleanups of serial port support
MIPS: Lemote 2F: Suspend CS5536 MFGPT Timer
MIPS: Excite: move iodev_remove to .devexit.text
MIPS: Lasat: Convert to proc_fops / seq_file
MIPS: Cleanup signal code initialization
MIPS: Modularize COP2 handling
MIPS: Move EARLY_PRINTK to Kconfig.debug
MIPS: Yeeloong 2F: Cleanup reset logic using the new ec_write function
MIPS: Yeeloong 2F: Add LID open event as the wakeup event
MIPS: Yeeloong 2F: Add basic EC operations
MIPS: Move several variables from .bss to .init.data
MIPS: Tracing: Make function graph tracer work with -mmcount-ra-address
MIPS: Tracing: Reserve $12(t0) for mcount-ra-address of gcc 4.5
MIPS: Tracing: Make ftrace for MIPS work without -fno-omit-frame-pointer
...
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* 'for-33' of git://repo.or.cz/linux-kbuild: (29 commits)
net: fix for utsrelease.h moving to generated
gen_init_cpio: fixed fwrite warning
kbuild: fix make clean after mismerge
kbuild: generate modules.builtin
genksyms: properly consider EXPORT_UNUSED_SYMBOL{,_GPL}()
score: add asm/asm-offsets.h wrapper
unifdef: update to upstream revision 1.190
kbuild: specify absolute paths for cscope
kbuild: create include/generated in silentoldconfig
scripts/package: deb-pkg: use fakeroot if available
scripts/package: add KBUILD_PKG_ROOTCMD variable
scripts/package: tar-pkg: use tar --owner=root
Kbuild: clean up marker
net: add net_tstamp.h to headers_install
kbuild: move utsrelease.h to include/generated
kbuild: move autoconf.h to include/generated
drop explicit include of autoconf.h
kbuild: move compile.h to include/generated
kbuild: drop include/asm
kbuild: do not check for include/asm-$ARCH
...
Fixed non-conflicting clean merge of modpost.c as per comments from
Stephen Rothwell (modpost.c had grown an include of linux/autoconf.h
that needed to be changed to generated/autoconf.h)
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With dynamic function tracer, by default, _mcount is defined as an
"empty" function, it returns directly without any more action . When
enabling it in user-space, it will jump to a real tracing
function(ftrace_caller), and do the real job for us.
Differ from the static function tracer, dynamic function tracer provides
two functions ftrace_make_call()/ftrace_make_nop() to enable/disable the
tracing of some indicated kernel functions(set_ftrace_filter).
In the -v4 version, the implementation of this support is basically the same as
X86 version does: _mcount is implemented as an empty function and ftrace_caller
is implemented as a real tracing function respectively.
But in this version, to support module tracing with the help of
-mlong-calls in arch/mips/Makefile:
MODFLAGS += -mlong-calls.
The stuff becomes a little more complex. We need to cope with two
different type of calling to _mcount.
For the kernel part, the calling to _mcount(result of "objdump -hdr
vmlinux"). is like this:
108: 03e0082d move at,ra
10c: 0c000000 jal 0 <fpcsr_pending>
10c: R_MIPS_26 _mcount
10c: R_MIPS_NONE *ABS*
10c: R_MIPS_NONE *ABS*
110: 00020021 nop
For the module with -mlong-calls, it looks like this:
c: 3c030000 lui v1,0x0
c: R_MIPS_HI16 _mcount
c: R_MIPS_NONE *ABS*
c: R_MIPS_NONE *ABS*
10: 64630000 daddiu v1,v1,0
10: R_MIPS_LO16 _mcount
10: R_MIPS_NONE *ABS*
10: R_MIPS_NONE *ABS*
14: 03e0082d move at,ra
18: 0060f809 jalr v1
In the kernel version, there is only one "_mcount" string for every
kernel function, so, we just need to match this one in mcount_regex of
scripts/recordmcount.pl, but in the module version, we need to choose
one of the two to match. Herein, I choose the first one with
"R_MIPS_HI16 _mcount".
and In the kernel verion, without module tracing support, we just need
to replace "jal _mcount" by "jal ftrace_caller" to do real tracing, and
filter the tracing of some kernel functions via replacing it by a nop
instruction.
but as we have described before, the instruction "jal ftrace_caller" only left
32bit length for the address of ftrace_caller, it will fail when calling from
the module space. so, herein, we must replace something else.
the basic idea is loading the address of ftrace_caller to v1 via changing these
two instructions:
lui v1,0x0
addiu v1,v1,0
If we want to enable the tracing, we need to replace the above instructions to:
lui v1, HI_16BIT_ftrace_caller
addiu v1, v1, LOW_16BIT_ftrace_caller
If we want to stop the tracing of the indicated kernel functions, we
just need to replace the "jalr v1" to a nop instruction. but we need to
replace two instructions and encode the above two instructions
oursevles.
Is there a simpler solution? Yes! Here it is, in this version, we put _mcount
and ftrace_caller together, which means the address of _mcount and
ftrace_caller is the same:
_mcount:
ftrace_caller:
j ftrace_stub
nop
...(do real tracing here)...
ftrace_stub:
jr ra
move ra, at
By default, the kernel functions call _mcount, and then jump to ftrace_stub and
return. and when we want to do real tracing, we just need to remove that "j
ftrace_stub", and it will run through the two "nop" instructions and then do
the real tracing job.
what about filtering job? we just need to do this:
lui v1, hi_16bit_of_mcount <--> b 1f (0x10000004)
addiu v1, v1, low_16bit_of_mcount
move at, ra
jalr v1
nop
1f: (rec->ip + 12)
In linux-mips64, there will be some local symbols, whose name are
prefixed by $L, which need to be filtered. thanks goes to Steven for
writing the mips64-specific function_regex.
In a conclusion, with RISC, things becomes easier with such a "stupid"
trick, RISC is something like K.I.S.S, and also, there are lots of
"simple" tricks in the whole ftrace support, thanks goes to Steven and
the other folks for providing such a wonderful tracing framework!
Signed-off-by: Wu Zhangjin <[email protected]>
Cc: Nicholas Mc Guire <[email protected]>
Cc: [email protected]
Cc: Wu Zhangjin <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: [email protected]
Cc: [email protected]
Patchwork: http://patchwork.linux-mips.org/patch/675/
Acked-by: Steven Rostedt <[email protected]>
Signed-off-by: Ralf Baechle <[email protected]>
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MIPS and some other architectures need this argument to handle
big/little endian respectively.
Signed-off-by: Wu Zhangjin <[email protected]>
Cc: Nicholas Mc Guire <[email protected]>
Cc: [email protected]
Cc: Wu Zhangjin <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: [email protected]
Cc: [email protected]
Patchwork: http://patchwork.linux-mips.org/patch/674/
Acked-by: Steven Rostedt <[email protected]>
Signed-off-by: Ralf Baechle <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* 'module' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
modpost: fix segfault with short symbol names
module: handle ppc64 relocating kcrctabs when CONFIG_RELOCATABLE=y
Kbuild: clear marker out of modpost
module: make MODULE_SYMBOL_PREFIX into a CONFIG option
ARM: unexport symbols used to implement floating point emulation
ARM: use unified discard definition in linker script
x86: don't export inline function
sparc64: don't export static inline pci_ functions
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Restructure a bit for multiple version control systems support.
Use a hash for each supported VCS that contains the commands
and patterns used to find commits, logs, and signers.
--git command line options are still used for hg except for
--git-since. Use --hg-since instead.
The number of commits can differ for git and hg, so --rolestats
might be different.
Style changes: Use common push style push(@foo...), simplify a return
Bumped version to 0.23.
Signed-off-by: Joe Perches <[email protected]>
Cc: Marti Raudsepp <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Fix email matching without name --n and --git-blame
Using --non and --git-blame caused maintainer signature
matching to fail. Fixed that by adding 3rd argument to
sub format_email to control show/hide name portion of address
Slurp -f file instead of reading line-by-line for K: pattern matching.
Suggested by Wolfram Sang as more efficient
Refactor git command execution
Break into 2 functions, execute/analyze
Share code between --git and --git-blame
Don't warn multiple times when git isn't installed
Improve stats reporting
--git-min-percent and -- rolestats now count the total number of commits
for either the period of --git-since or if using --git-blame the commits
used by the current file and calculate commit % as
# of commits signed / total commits * 100
Code style cleaning
Use consistent sub foo { my (args...) = @_;
Signed-off-by: Joe Perches <[email protected]>
Cc: Ben Hutchings <[email protected]>
Cc: Greg KH <[email protected]>
Cc: Pavel Machek <[email protected]>
Cc: Wolfram Sang <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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--roles shows the role of each email address, i.e. why it was selected.
--rolestats selects --roles and adds git log/blame signers #'s and %
Multiple roles are possible (supporter, maintainer, git-signer...)
--roles or --rolestats is meant to help identify appropriate maintainers
to notify and should not be used with "git send-email --cc-cmd"
Example output:
Existing:
$ ./scripts/get_maintainer.pl -f arch/x86/kernel/acpi/boot.c
Corentin Chary <[email protected]>
Karol Kozimor <[email protected]>
Len Brown <[email protected]>
Pavel Machek <[email protected]>
Rafael J. Wysocki <[email protected]>
Thomas Gleixner <[email protected]>
Ingo Molnar <[email protected]>
H. Peter Anvin <[email protected]>
[email protected]
Yinghai Lu <[email protected]>
Jeremy Fitzhardinge <[email protected]>
[email protected]
[email protected]
[email protected]
With --roles
$ ./scripts/get_maintainer.pl --roles -f arch/x86/kernel/acpi/boot.c
Corentin Chary <[email protected]> (maintainer:ASUS ACPI EXTRAS...)
Karol Kozimor <[email protected]> (maintainer:ASUS ACPI EXTRAS...)
Len Brown <[email protected]> (supporter:SUSPEND TO RAM,git-signer)
Pavel Machek <[email protected]> (supporter:SUSPEND TO RAM)
Rafael J. Wysocki <[email protected]> (supporter:SUSPEND TO RAM)
Thomas Gleixner <[email protected]> (maintainer:X86 ARCHITECTURE...)
Ingo Molnar <[email protected]> (maintainer:X86 ARCHITECTURE...,git-signer)
H. Peter Anvin <[email protected]> (maintainer:X86 ARCHITECTURE...)
[email protected] (maintainer:X86 ARCHITECTURE...)
Yinghai Lu <[email protected]> (git-signer)
Jeremy Fitzhardinge <[email protected]> (git-signer)
[email protected] (open list:ASUS ACPI EXTRAS...)
[email protected] (open list:SUSPEND TO RAM)
[email protected] (open list)
With --rolestats
$ ./scripts/get_maintainer.pl --rolestats -f arch/x86/kernel/acpi/boot.c
Corentin Chary <[email protected]> (maintainer:ASUS ACPI EXTRAS...)
Karol Kozimor <[email protected]> (maintainer:ASUS ACPI EXTRAS...)
Len Brown <[email protected]> (supporter:SUSPEND TO RAM,git-signer:16/79=20%)
Pavel Machek <[email protected]> (supporter:SUSPEND TO RAM)
Rafael J. Wysocki <[email protected]> (supporter:SUSPEND TO RAM)
Thomas Gleixner <[email protected]> (maintainer:X86 ARCHITECTURE...)
Ingo Molnar <[email protected]> (maintainer:X86 ARCHITECTURE...,git-signer:29/79=37%)
H. Peter Anvin <[email protected]> (maintainer:X86 ARCHITECTURE...)
[email protected] (maintainer:X86 ARCHITECTURE...)
Yinghai Lu <[email protected]> (git-signer:12/79=15%)
Jeremy Fitzhardinge <[email protected]> (git-signer:6/79=8%)
[email protected] (open list:ASUS ACPI EXTRAS...)
[email protected] (open list:SUSPEND TO RAM)
[email protected] (open list)
With --rolestats and --git-blame
$ ./scripts/get_maintainer.pl --rolestats --git-blame -f arch/x86/kernel/acpi/boot.c
Corentin Chary <[email protected]> (maintainer:ASUS ACPI EXTRAS...)
Karol Kozimor <[email protected]> (maintainer:ASUS ACPI EXTRAS...)
Len Brown <[email protected]> (supporter:SUSPEND TO RAM,git-signer:16/79=20%,commits:22/154=14%)
Pavel Machek <[email protected]> (supporter:SUSPEND TO RAM)
Rafael J. Wysocki <[email protected]> (supporter:SUSPEND TO RAM)
Thomas Gleixner <[email protected]> (maintainer:X86 ARCHITECTURE...)
Ingo Molnar <[email protected]> (maintainer:X86 ARCHITECTURE...,git-signer:29/79=37%,commits:36/154=23%)
H. Peter Anvin <[email protected]> (maintainer:X86 ARCHITECTURE...)
[email protected] (maintainer:X86 ARCHITECTURE...)
Yinghai Lu <[email protected]> (git-signer:12/79=15%,commits:9/154=6%)
Jeremy Fitzhardinge <[email protected]> (git-signer:6/79=8%)
Andi Kleen <[email protected]> (commits:11/154=7%)
Andrew Morton <[email protected]> (commits:10/154=6%)
[email protected] (open list:ASUS ACPI EXTRAS...)
[email protected] (open list:SUSPEND TO RAM)
[email protected] (open list)
Other changes:
Format git-signers email addresses a bit to reduce bad signatures
Command line bad arguments emitted a verbose usage(), just show --help
Version number bumped to .22
Ben Hutchings had the idea and created a good deal of this implementation.
Signed-off-by: Joe Perches <[email protected]>
Signed-off-by: Ben Hutchings <[email protected]>
Cc: Greg KH <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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memcmp() is wrong here, the symbol name can be shorter than KSYMTAB_PFX
or CRC_PFX.
Signed-off-by: Michal Marek <[email protected]>
Signed-off-by: Rusty Russell <[email protected]>
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Remove the unnecessary functions and variables.
Signed-off-by: Wenji Huang <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
Signed-off-by: Rusty Russell <[email protected]>
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The next commit will require the use of MODULE_SYMBOL_PREFIX in
.tmp_exports-asm.S. Currently it is mixed in with C structure
definitions in "asm/module.h". Move the definition of this arch option
into Kconfig, so it can be easily accessed by any code.
This also lets modpost.c use the same definition. Previously modpost
relied on a hardcoded list of architectures in mk_elfconfig.c.
A build test for blackfin, one of the two MODULE_SYMBOL_PREFIX archs,
showed the generated code was unchanged. vmlinux was identical save
for build ids, and an apparently randomized suffix on a single "__key"
symbol in the kallsyms data).
Signed-off-by: Alan Jenkins <[email protected]>
Acked-by: Mike Frysinger <[email protected]> (blackfin)
CC: Sam Ravnborg <[email protected]>
Signed-off-by: Rusty Russell <[email protected]>
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With dynamic function tracer, by default, _mcount is defined as an
"empty" function, it returns directly without any more action. When
enabling it in user-space, it will jump to a real tracing
function(ftrace_caller), and do the real job for us.
Differ from the static function tracer, dynamic function tracer provides
two functions ftrace_make_call()/ftrace_make_nop() to enable/disable the
tracing of some indicated kernel functions(set_ftrace_filter).
In the kernel version, there is only one "_mcount" string for every
kernel function, so, we just need to match this one in mcount_regex of
scripts/recordmcount.pl.
For more information please look at code and Documentation/trace folder.
Steven ACK that scripts/recordmcount.pl part.
Acked-by: Steven Rostedt <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
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To make it easier for module-init-tools and scripts like mkinitrd to
distinguish builtin and missing modules, install a modules.builtin file
listing all builtin modules. This is done by generating an additional
config file (tristate.conf) with tristate options set to uppercase 'Y'
or 'M'. If we source that config file, the builtin modules appear in
obj-Y.
Signed-off-by: Michal Marek <[email protected]>
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Despite being unused these should also get a CRC calculated.
Primarily I view this as a consistency thing. But I also think this is
one of the reasons why __crc_* need to be weak (which I think should be
avoided, and hence we should have the goal to eliminate this so that
failure to calculate a proper CRC for a symbol causes the build to fail).
Signed-off-by: Jan Beulich <[email protected]>
Cc: Anibal Monsalve Salazar <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: Sam Ravnborg <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
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Fix handling of input files (e.g. with no newline at EOF) that could
make unifdef get into an unexpected state and call abort().
The new -B option compresses blank lines around a deleted section
so that blank lines around "paragraphs" of code don't get doubled.
The evaluator can now handle macros with arguments, and unbracketed
arguments to the "defined" operator.
Add myself to MAINTAINERS for unifdef.
Signed-off-by: Tony Finch <[email protected]>
Acked-by: Sam Ravnborg <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
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Cscope doesn't hadle relative paths when cscope.out is not in $PWD. Use
absolute paths when generating cscope.files, which seems to be the
recommended way to generate cscope.out, anyway (at least according to
cscope.sf.net). The speed and size differences are minimal, the only
drawback is that the database needs to be regenerated if the source
directory is moved.
[mmarek: fixed for O= builds, modified changelog]
Signed-off-by: Daniel Vetter <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
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The toplevel Makefile creates the directory if it runs silentoldconfig
automatically, but if run manually, it fails:
$ make mrproper
$ make defconfig && make silentoldconfig
*** Default configuration is based on 'x86_64_defconfig'
#
# configuration written to .config
#
scripts/kconfig/conf -s arch/x86/Kconfig
*** Error during update of the kernel configuration.
...
Move the mkdir command to the silentoldconfig target to make it work.
Signed-off-by: Michal Marek <[email protected]>
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Running "make deb-pkg" requires setting KBUILD_PKG_ROOTCMD or
becoming root oneself or it errors out. Unless already running
as root or KBUILD_PKG_ROOTCMD is already set, use fakeroot as a
good default.
With this patch applied, you can run "make oldconfig deb-pkg" as
an ordinary user to build a binary package for an updated kernel
tree and it should just work.
fakeroot is too zealous by default in treating files as owned by
root. Its wrapped stat() sets st_uid and st_gid to 0 for all
files, which causes Git to go on a wild goose chase if
CONFIG_LOCALVERSION_AUTO is set, checking if any file's content
has changed along with its stat information. Avoid this by
telling fakeroot to use the actual owner and group for
preexisting files, by passing it the -u option.
Signed-off-by: Jonathan Nieder <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
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Let the deb-pkg target acquire (fake) root privileges before
running commands that need them. Without such privileges,
deb-pkg errors out because chown fails.
The new KBUILD_PKG_ROOTCMD variable, if defined, is used as a
command to run other commands with possibly fake elevated
privileges. Since this is not needed for the tar-pkg and rpm-pkg
targets, it is only used by deb-pkg. If it is not defined, the
behavior is as before, and the user will have to rerun make as
root.
In other words, as a shortcut, instead of running 'make oldconfig &&
make && fakeroot -u make deb-pkg', one can use the single command
'make oldconfig deb-pkg KBUILD_PKG_ROOTCMD="fakeroot -u"'.
Suggested-by: Ryan Anderson <[email protected]>
Signed-off-by: Jonathan Nieder <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
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Use the --owner= and --group= options to make sure the entries in
the built tar file are owned by root. Without this change, a
careless sysadmin using the tar-pkg target can easily end up
installing a kernel that is writable by the unprivileged user
account used to build the kernel.
Test that these options are understood before using them so that
non-GNU versions of tar can still be used if the operator is
appropriately cautious.
Signed-off-by: Jonathan Nieder <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
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Signed-off-by: Sam Ravnborg <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
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No architectures uses include/asm-$ARCH now.
So drop check for location of include files
Signed-off-by: Sam Ravnborg <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
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As has been discussed previously (and Sam has been CC'ed), the fix
is still incorrect. It replaces "echo -ne" with "/bin/echo -ne",
but neither of the two are guaranteed to support the necessary
arguments and necessary (hexadecimal) escape sequences. What should
be used here is printf(1). The trivial patch below (on top of these
kbuild changes) fixes this issue.
Signed-Off-By: Michael Tokarev <[email protected]>
Signed-off-by: Sam Ravnborg <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
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