Signed-off-by: NJonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

This patch removes the assumption of the bootgraph.pl script that the
timing information reported by PRINTK_TIME will contain at least one
entry with a time of less than 100 seconds.

Not all boards correctly reset the system timer and in many cases the
inital times reported by PRINTK_TIME is high. When this occurs the
bootchart.pl script fails to give any useful output.

This patch sets the $firsttime variable to the largest value expected
by PRINTK_TIME
Signed-off-by: NAndrew Murray <amurray@mpc-data.co.uk>
Acked-by: NArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

depmod from module-init-tools < 3.13 and the busybox depmod check if the
kernel release starts with <num>.<num>.<num>. To support these versions,
we create a symlink with two numbers prepended.
Signed-off-by: NMichal Marek <mmarek@suse.cz>

Do not bloat the Makefile with multiline shell statements. No
user-visible change intended.
Signed-off-by: NMichal Marek <mmarek@suse.cz>

This patch silences a Makefile.asm-generic message
by defining a dummy rule for all.

make -f /usr/src/git/scripts/Makefile.asm-generic \
            obj=arch/x86/include/generated/asm
make[1]: Nothing to be done for `all'.
Signed-off-by: NPeter Foley <pefoley2@verizon.net>
Signed-off-by: NMichal Marek <mmarek@suse.cz>

While find_secsym_ndx often finds the unamed local STT_SECTION, if a
section has only one function in it, the ARM toolchain generates the
STT_FUNC symbol before the STT_SECTION, and recordmcount finds this
instead.

This is problematic on ARM because in ARM ELFs, "if a [STT_FUNC] symbol
addresses a Thumb instruction, its value is the address of the
instruction with bit zero set (in a relocatable object, the section
offset with bit zero set)".  This leads to incorrect mcount addresses
being recorded.

Fix this by not using STT_FUNC symbols as the base on ARM.
Signed-off-by: NRabin Vincent <rabin@rab.in>
Link: http://lkml.kernel.org/r/1305134631-31617-1-git-send-email-rabin@rab.inSigned-off-by: NSteven Rostedt <rostedt@goodmis.org>

Seems that Peter Zijlstra treats us emacs users as second class
citizens and the commit:

 commit 15664125
 Author: Peter Zijlstra <peterz@infradead.org>
 scripts/tags.sh: Add magic for trace-events

only updated ctags (for vim) and did not do the work to let us
lowly emacs users benefit from such a change.

Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>

The regex to handle DEFINE_EVENT() should not be the same as
the TRACE_EVENT() as the first parameter in DEFINE_EVENT is the
template name, not the event name. We need the second parameter
as that is what the trace_... will use.
Tested-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>

Currently, printk lines with a only KERN_PREFIX and a quoted string
without a comma or close paren that exceed 80 columns are flagged with a
warning.

ie:
	printk(KERN_WARNING "some long string that extends beond 80 cols..."
	       "and is continued on another line\n");

Allow this form instead of emitting a warning.
Signed-off-by: NJoe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Many module or file local logging functions use specific prefixes other
than pr|dev|netdev.  Allow all forms like foo_printk and foo_err to be
longer than 80 columns.

Also allow MODULE_<BAR> declarations to be longer than 80 columns.
Signed-off-by: NJoe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add a warning for unterminated quoted strings with line continuations as
these frequently add unwanted whitespace.
Signed-off-by: NJoe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Avoid to have multiple path saving the config. This fixes an error check
miss when the window is being closed and the user requested the config
to be written.
Reported-by: NHiromu Yakura <hiromu1996@gmail.com>
Pointed-out-by: NMichal Marek <mmarek@suse.cz>
Signed-off-by: NMichal Marek <mmarek@suse.cz>

To compile binaries which depend on new kernel interfaces, we need a
kernel-headers RPM
Signed-off-by: NArun Sharma <asharma@fb.com>
Signed-off-by: NMichal Marek <mmarek@suse.cz>

The better fix would be to stop using the parent directory (principle of
least surprise), but as long as we use it, use it consistently.
Signed-off-by: NMichal Marek <mmarek@suse.cz>

Signed-off-by: NArnaud Lacombe <lacombar@gmail.com>
Signed-off-by: NMichal Marek <mmarek@suse.cz>

Also count CONFIG_MODVERSIONS warnings, and print a NOTE at start of
SECTION 2 if any were issued.  Section 2 will be empty if the build is
lacking this CONFIG_ item, and user may have missed the warnings, as
they're off screen.
Signed-off-by: NJim Cromie <jim.cromie@gmail.com>
Signed-off-by: NMichal Marek <mmarek@suse.cz>

Sort SECTION 2 modules by name.  Within those module listings, sort
the symbol providers by name, and remove the count, as it is
misleading; its the kernel-wide count of uses of that symbol, not the
count pertaining to the module being outlined.  (this can be seen by
grepping the output for a single symbol).  The count is still used to
sort the symbols.
Signed-off-by: NJim Cromie <jim.cromie@gmail.com>
Signed-off-by: NMichal Marek <mmarek@suse.cz>

Avoid spawning a shell pipeline doing cat, grep, sed, and do it all
inside perl.  The <*.c> globbing construct works at least as far back
as 5.8.9

Note that this is not just an optimization; the sed command
in the pipeline was unterminated, due to lack of escape on the
end-of-line (\$) in the regex, resulting in this:

    $ perl ../linux-2.6/scripts/export_report.pl  > /dev/null
    sed: -e expression #1, char 5: unterminated `s' command
    sh: .mod.c/: not found

Comments on an earlier patch sought an all-perl implementation.
Signed-off-by: NJim Cromie <jim.cromie@gmail.com>
cc: Michal Marek <mmarek@suse.cz>,
cc: linux-kbuild@vger.kernel.org
cc: Arnaud Lacombe lacombar@gmail.com
cc: Stephen Hemminger shemminger@vyatta.com
Signed-off-by: NMichal Marek <mmarek@suse.cz>

When the gconfig program starts in full mode view, it shows the
left treeview which belongs to the 'split mode view'. The patch
fix this visual issue.
Signed-off-by: NEduardo Silva <edsiper@gmail.com>
Signed-off-by: NMichal Marek <mmarek@suse.cz>

Due to the large amount of rows in the treeviews, is difficult to
match columns with rows, setting the rules hint to 'true' allows the
treeview to alternate background colors in the rows making the data
more readable.
Signed-off-by: NEduardo Silva <edsiper@gmail.com>
Tested-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NMichal Marek <mmarek@suse.cz>

move LSM-, credentials-, and keys-related files from Documentation/
  to Documentation/security/,
add Documentation/security/00-INDEX, and
update all occurrences of Documentation/<moved_file>
  to Documentation/security/<moved_file>.

Modifications to recordmcount must be performed on all object
files to stay consistent with what the kernel code may expect.
Add the recordmcount files to the main dependencies to make sure
any change to them causes a full recompile.
Signed-off-by: NMichal Marek <mmarek@suse.cz>
Link: http://lkml.kernel.org/r/20110517133646.GP13293@sepie.suse.czSigned-off-by: NSteven Rostedt <rostedt@goodmis.org>

Binutils 2.18.50 made a backwards-incompatible change in the way it
writes ELF objects with over 65280 sections, to improve conformance
with the ELF specification and interoperability with other ELF tools.
Specifically, it no longer adds 256 to section indices SHN_LORESERVE
and higher to skip over the reserved range SHN_LORESERVE through
SHN_HIRESERVE; those values are only considered special in the
st_shndx field, and not in other places where section indices are
stored.  See:

http://sourceware.org/bugzilla/show_bug.cgi?id=5900
http://groups.google.com/group/generic-abi/browse_thread/thread/e8bb63714b072e67/6c63738f12cc8a17Signed-off-by: NAnders Kaseorg <andersk@ksplice.com>
Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>

This patch places every exported symbol in its own section
(i.e. "___ksymtab+printk").  Thus the linker will use its SORT() directive
to sort and finally merge all symbol in the right and final section
(i.e. "__ksymtab").

The symbol prefixed archs use an underscore as prefix for symbols.
To avoid collision we use a different character to create the temporary
section names.

This work was supported by a hardware donation from the CE Linux Forum.
Signed-off-by: NAlessio Igor Bogani <abogani@kernel.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (folded in '+' fixup)
Tested-by: NDirk Behme <dirk.behme@googlemail.com>

Haavard's e-mail address at Atmel is no longer valid.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Acked-by: NHavard Skinnemoen <hskinnemoen@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Do the mcount offset adjustment in the recordmcount.pl/recordmcount.[ch]
at compile time and not in ftrace_call_adjust at run time.
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>

Do the mcount offset adjustment in the recordmcount.pl/recordmcount.[ch]
at compile time and not in ftrace_call_adjust at run time.
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>

Introduce mcount_adjust{,_32,_64} to the C implementation of
recordmcount analog to $mcount_adjust in the perl script.
The adjustment is added to the address of the relocations
against the mcount symbol. If this adjustment is done by
recordmcount at compile time the ftrace_call_adjust function
can be turned into a nop.

Cc: John Reiser <jreiser@bitwagon.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>

The code to get the symbol, string, and relp pointers in the two functions
sift_rel_mcount() and nop_mcount() are identical and also non-trivial.
Moving this duplicate code into a single helper function makes the code
easier to read and more maintainable.

Cc: John Reiser <jreiser@bitwagon.com>
Link: http://lkml.kernel.org/r/20110421023739.723658553@goodmis.orgSigned-off-by: NSteven Rostedt <rostedt@goodmis.org>

The code in sift_rel_mcount() and nop_mcount() to get the mcount symbol
number is identical. Replace the two locations with a call to a function
that does the work.

Cc: John Reiser <jreiser@bitwagon.com>
Link: http://lkml.kernel.org/r/20110421023739.488093407@goodmis.orgSigned-off-by: NSteven Rostedt <rostedt@goodmis.org>

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: NMichal Marek <mmarek@suse.cz>
Cc: linux-kbuild@vger.kernel.org
Link: http://lkml.kernel.org/r/20110421023738.714956282@goodmis.orgSigned-off-by: NSteven Rostedt <rostedt@goodmis.org>

There's some sections that should not have mcount recorded and should not have
modifications to the that code. But currently they waste some time by calling
mcount anyway (which simply returns). As the real answer should be to
either whitelist the section or have gcc ignore it fully.

This change adds a option to recordmcount to warn when it finds a section
that is ignored by ftrace but still contains mcount callers. This is not on
by default as developers may not know if the section should be completely
ignored or added to the whitelist.

Cc: John Reiser <jreiser@bitwagon.com>
Link: http://lkml.kernel.org/r/20110421023738.476989377@goodmis.orgSigned-off-by: NSteven Rostedt <rostedt@goodmis.org>

There are sections that are ignored by ftrace for the function tracing because
the text is in a section that can be removed without notice. The mcount calls
in these sections are ignored and ftrace never sees them. The downside of this
is that the functions in these sections still call mcount. Although the mcount
function is defined in assembly simply as a return, this added overhead is
unnecessary.

The solution is to convert these callers into nops at compile time.
A better solution is to add 'notrace' to the section markers, but as new sections
come up all the time, it would be nice that they are delt with when they
are created.

Later patches will deal with finding these sections and doing the proper solution.

Thanks to H. Peter Anvin for giving me the right nops to use for x86.

Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: John Reiser <jreiser@bitwagon.com>
Link: http://lkml.kernel.org/r/20110421023738.237101176@goodmis.orgSigned-off-by: NSteven Rostedt <rostedt@goodmis.org>

PROGBITS is not enough to determine if the section should be modified
or not. Only process sections that are marked as executable.

Cc: John Reiser <jreiser@bitwagon.com>
Link: http://lkml.kernel.org/r/20110421023737.991485123@goodmis.orgSigned-off-by: NSteven Rostedt <rostedt@goodmis.org>

The .kprobe.text section is safe to modify mcount to nop and tracing.
Add it to the whitelist in recordmcount.c and recordmcount.pl.

Cc: John Reiser <jreiser@bitwagon.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Link: http://lkml.kernel.org/r/20110421023737.743350547@goodmis.orgSigned-off-by: NSteven Rostedt <rostedt@goodmis.org>

The Linux style for switch statements is:

	switch (var) {
	case x:
		[...]
		break;
	}

Not:
	switch (var) {
	case x: {
		[...]
	} break;

Cc: John Reiser <jreiser@bitwagon.com>
Link: http://lkml.kernel.org/r/20110421023737.523968644@goodmis.orgSigned-off-by: NSteven Rostedt <rostedt@goodmis.org>

The Linux ftrace subsystem style for comparing is:

  var == 1
  var > 0

and not:

  1 == var
  0 < var

It is considered that Linux developers are smart enough not to do the

  if (var = 1)

mistake.

Cc: John Reiser <jreiser@bitwagon.com>
Link: http://lkml.kernel.org/r/20110421023737.290712238@goodmis.orgSigned-off-by: NSteven Rostedt <rostedt@goodmis.org>

Based on a patch by Rabin Vincent.

Fix building with KBUILD_NOCMDDEP=1, which currently does not work
because it does not build built-in.o with no dependencies:

  LD      fs/notify/built-in.o
ld: cannot find fs/notify/dnotify/built-in.o: No such file or directory
ld: cannot find fs/notify/inotify/built-in.o: No such file or directory
ld: cannot find fs/notify/fanotify/built-in.o: No such file or directory
Reported-and-tested-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NMichal Marek <mmarek@suse.cz>

Description:
This bug hardly appears during real kernel compiling,
 because the vmlinux symbols table is huge.

But we can still catch it under strict condition , as follows.
   $ echo "c101b97b T do_fork" | ./scripts/kallsyms --all-symbols
   #include <asm/types.h>
   ......
   ......
   .globl kallsyms_token_table
           ALGN
   kallsyms_token_table:
   Segmentation fault (core dumped)
   $

If symbols table is small, all entries in token_profit[0x10000] may
decrease to 0 after several calls of compress_symbols() in optimize_result().
In that case, find_best_token() always return 0 and
best_table[i] is set to "\0\0" and best_table_len[i] is set to 2.

As a result, expand_symbol(best_table[0]="\0\0", best_table_len[0]=2, buf)
in write_src() will run in infinite recursion until stack overflows,
causing segfault.

This patch checks the find_best_token() return value. If all entries in
token_profit[0x10000] become 0 according to return value, it breaks the loop
in optimize_result().
And expand_symbol() works well when best_table_len[i] is 0.
Signed-off-by: NXiaochen Wang <wangxiaochen0@gmail.com>
Acked-by: NPaulo Marques <pmarques@grupopie.com>
Signed-off-by: NMichal Marek <mmarek@suse.cz>

Replace bashisms with POSIX-compatible shell scripting.

Notably, de-duplicate '/' using a sed command from elsewhere in the same script
rather than "${name//\/\///}".

Commit by Jamey Sharp and Josh Triplett.
Signed-off-by: NJamey Sharp <jamey@minilop.net>
Signed-off-by: NJosh Triplett <josh@joshtriplett.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: NMichal Marek <mmarek@suse.cz>