linux-stable.git/tools/lib, branch linux-3.12.y

tools lib traceevent: Fix output of %llu for 64 bit values read on 32 bit machines

2016-02-24T09:23:22+00:00

commit 32abc2ede536aae52978d6c0a8944eb1df14f460 upstream.

When a long value is read on 32 bit machines for 64 bit output, the
parsing needs to change "%lu" into "%llu", as the value is read
natively.

Unfortunately, if "%llu" is already there, the code will add another "l"
to it and fail to parse it properly.

Signed-off-by: Steven Rostedt 
Acked-by: Namhyung Kim 
Link: http://lkml.kernel.org/r/20151116172516.4b79b109@gandalf.local.home
Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: Jiri Slaby

tools lib traceevent kbuffer: Remove extra update to data pointer in PADDING

2015-05-04T09:50:06+00:00

commit c5e691928bf166ac03430e957038b60adba3cf6c upstream.

When a event PADDING is hit (a deleted event that is still in the ring
buffer), translate_data() sets the length of the padding and also updates
the data pointer which is passed back to the caller.

This is unneeded because the caller also updates the data pointer with
the passed back length. translate_data() should not update the pointer,
only set the length.

Signed-off-by: Steven Rostedt 
Cc: Andrew Morton 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Link: http://lkml.kernel.org/r/20150324135923.461431960@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: Jiri Slaby

tools lib lk: Uninclude linux/magic.h in debugfs.c

2013-09-19T18:08:53+00:00

The compilation only looks for linux/magic.h from the default include
paths, which does not include the source tree. This results in a build
error if linux/magic.h is not available or not installed.

For example, this build error occurs on CentOS 5.

$ make -C tools/lib/lk V=1
[...]
gcc -o debugfs.o -c -ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6
-D_FORTIFY_SOURCE=2 -Wbad-function-cast -Wdeclaration-after-statement
-Wformat-security -Wformat-y2k -Winit-self -Wmissing-declarations
-Wmissing-prototypes -Wnested-externs -Wno-system-headers
-Wold-style-definition -Wpacked -Wredundant-decls -Wshadow
-Wstrict-aliasing=3 -Wstrict-prototypes -Wswitch-default -Wswitch-enum
-Wundef -Wwrite-strings -Wformat  -fPIC  -D_LARGEFILE64_SOURCE
-D_FILE_OFFSET_BITS=64 debugfs.c
debugfs.c:8:25: error: linux/magic.h: No such file or directory

The only symbol from linux/magic.h needed by debugfs.c is DEBUGFS_MAGIC,
and that is already defined in debugfs.h. linux/magic.h isn't providing
any extra symbols and can unincluded. This is similar to the approach by
perf, which has its own magic.h wrapper at
tools/perf/util/include/linux/magic.h

Signed-off-by: Vinson Lee 
Acked-by: Borislav Petkov 
Cc: Borislav Petkov 
Cc: Vinson Lee 
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1379546200-17028-1-git-send-email-vlee@freedesktop.org
Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Fixup jobserver setup

2013-08-27T14:05:55+00:00

Getting rid of:

make[1]: Entering directory `/home/git/linux/tools/lib/traceevent'
make[2]: warning: jobserver unavailable: using -j1.  Add `+' to parent
make rule.
make[1]: Entering directory `/home/git/linux/tools/lib/lk

When running:

 make -j4 O=/tmp/build/perf -C tools/perf install-bin

Acked-by: Borislav Petkov 
Cc: Adrian Hunter 
Cc: Borislav Petkov 
Cc: David Ahern 
Cc: Frederic Weisbecker 
Cc: Mike Galbraith 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Cc: Steven Rostedt 
Link: http://lkml.kernel.org/n/tip-pvr7uppe329gw9onchgdu0m6@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

Revert "tools lib lk: Fix for cross build"

2013-08-07T20:35:41+00:00

This reverts commit 079787f209416416383c74ea5d5044be2d586f5e.

Below commit already resolve a cross build problem.
I have been noticed this too lately.

    commit 3c4797d46c14fa0c7cf733a77bd4b28875078b53
    Author: Rabin Vincent 
    Date:   Fri May 17 22:27:44 2013 +0200

    tools lib lk: Respect CROSS_COMPILE

    Make lk use CROSS_COMPILE, in order to be able to cross compile perf
    again.

Signed-off-by: Joonsoo Kim 
Cc: Ingo Molnar 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1373936614-22224-1-git-send-email-iamjoonsoo.kim@lge.com
Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Port kbuffer parser routines

2013-07-12T16:52:16+00:00

kbuffer code is for parsing ftrace ring-buffer binary data and used
for trace-cmd.  Move the code here in order to be used more widely.

Signed-off-by: Namhyung Kim 
Original-patch-by: Steven Rostedt 
Acked-by: Steven Rostedt 
Cc: David Ahern 
Cc: Frederic Weisbecker 
Cc: Ingo Molnar 
Cc: Jiri Olsa 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Steven Rostedt 
Link: http://lkml.kernel.org/r/1370323231-14022-7-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Add page_size field to pevent

2013-07-12T16:52:14+00:00

The page size of traced system can be different than current system's
because the recorded data file might be analyzed in a different machine.
In this case we should use original page size of traced system when
accessing the data file, so this information needs to be saved.

Signed-off-by: Namhyung Kim 
Cc: David Ahern 
Cc: Frederic Weisbecker 
Cc: Ingo Molnar 
Cc: Jiri Olsa 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Steven Rostedt 
Link: http://lkml.kernel.org/r/1370323231-14022-6-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Add trace_seq_reset()

2013-07-12T16:52:12+00:00

Sometimes it'd be useful if existing trace_seq can be reused.  But
currently it's impossible since there's no API to reset the trace_seq.
Let's add trace_seq_reset() for this case.

Signed-off-by: Namhyung Kim 
Acked-by: Steven Rostedt 
Cc: David Ahern 
Cc: Frederic Weisbecker 
Cc: Ingo Molnar 
Cc: Jiri Olsa 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Steven Rostedt 
Link: http://lkml.kernel.org/r/1370323231-14022-5-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Add const qualifier to string arguments

2013-07-12T16:52:11+00:00

If pevent_register_event_handler() received a string literal as
@sys_name or @event_name parameter, it emitted a warning about const
qualifier removal.  Since they're not modified in the function we can
make it have const qualifier.

Signed-off-by: Namhyung Kim 
Acked-by: Steven Rostedt 
Cc: David Ahern 
Cc: Frederic Weisbecker 
Cc: Ingo Molnar 
Cc: Jiri Olsa 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Steven Rostedt 
Link: http://lkml.kernel.org/r/1370323231-14022-4-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Get rid of unused gui target

2013-07-12T16:52:09+00:00

It's came from trace-cmd's kernelshark which is not a part of
libtraceevent.

Signed-off-by: Namhyung Kim 
Acked-by: Steven Rostedt 
Cc: David Ahern 
Cc: Frederic Weisbecker 
Cc: Ingo Molnar 
Cc: Jiri Olsa 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Steven Rostedt 
Link: http://lkml.kernel.org/r/1370323231-14022-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo