linux-stable.git/tools/perf/util/util.c, branch v5.2

perf tools: Add perf_exe() helper to find perf binary

2019-02-25T13:58:28+00:00

Also convert one existing user.

Signed-off-by: Andi Kleen 
Acked-by: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/r/20190224153722.27020-9-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add rm_rf_perf_data function

2019-02-25T13:33:51+00:00

To remove perf.data including the directory, with checking on expected
files and no other directories inside.

Signed-off-by: Jiri Olsa 
Suggested-by: Andi Kleen 
Cc: Adrian Hunter 
Cc: Alexander Shishkin 
Cc: Alexey Budankov 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/r/20190224190656.30163-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add pattern name checking to rm_rf

2019-02-25T13:33:04+00:00

Add pattern argument to rm_rf_depth() (and rename it to rm_rf_depth_pat())
to specify the name pattern files need to match inside the directory.

The function fails if we find different file to remove.

Signed-off-by: Jiri Olsa 
Cc: Adrian Hunter 
Cc: Alexander Shishkin 
Cc: Alexey Budankov 
Cc: Andi Kleen 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/r/20190224190656.30163-3-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add depth checking to rm_rf

2019-02-25T13:32:11+00:00

Adding depth argument to rm_rf (and renaming it to rm_rf_depth) to
specify the depth we will go searching for files to remove.

It will be used to specify single depth for perf.data directory removal
in following patch.

Signed-off-by: Jiri Olsa 
Cc: Adrian Hunter 
Cc: Alexander Shishkin 
Cc: Alexey Budankov 
Cc: Andi Kleen 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/r/20190224190656.30163-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Make rm_rf() remove single file

2019-02-20T20:09:28+00:00

Let rm_rf() remove a file if it's provided by path, not just
directories.

Signed-off-by: Jiri Olsa 
Cc: Alexander Shishkin 
Cc: Alexey Budankov 
Cc: Andi Kleen 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/20190220122800.864-7-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf namespaces: Remove namespaces.h from .h headers

2019-01-25T14:12:09+00:00

There we need just forward declarations, so remove it and add it just on
the .c files that actually touch the struct definitions.

Cc: Adrian Hunter 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Link: https://lkml.kernel.org/n/tip-wsjxzt99p83jubt6hu0med0f@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf util: Make copyfile_offset() global

2018-09-19T13:25:12+00:00

It will be used outside of util object in following patches.

Committer note:

We need to have the header with the definition for loff_t in util.h
since we now use it in the copyfile_offset() signature.

Also move that prototype closer to the other copyfile_ prefixed
functions.

Signed-off-by: Jiri Olsa 
Cc: Alexander Shishkin 
Cc: Alexey Budankov 
Cc: Andi Kleen 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/20180913125450.21342-10-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: No need to unconditionally read the max_stack sysctls

2018-05-17T19:31:32+00:00

Let tools that need to have those variables with the sysctl current
values use a function that will read them.

Cc: Adrian Hunter 
Cc: David Ahern 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Wang Nan 
Link: https://lkml.kernel.org/n/tip-1ljj3oeo5kpt2n1icfd9vowe@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Read the cache line size lazily

2018-05-17T19:03:34+00:00

It is not read as commonly as 'page_size', so it makes sense to read it
lazily, caching its value when it is first read.

Less files open unconditionally at startup.

Cc: Adrian Hunter 
Cc: David Ahern 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Wang Nan 
Link: https://lkml.kernel.org/n/tip-35xhrq91u94uc1djtclek1ie@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Substitute yet another strtoull()

2018-02-15T12:57:19+00:00

Instead of home grown function let's use what library provides us.

Signed-off-by: Andriy Shevchenko 
Acked-by: Jiri Olsa 
Link: http://lkml.kernel.org/r/20180129130359.1490-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo