tools lib api: Add str_error_c to libapi

Because it uses that function, which would lead every tool using it
to need to link against tools/lib/str_error_r.o.

This fixes building tools/vm/, that lin

tools lib api: Add str_error_c to libapi

Because it uses that function, which would lead every tool using it
to need to link against tools/lib/str_error_r.o.

This fixes building tools/vm/, that links with libapi.

Reported-by: Arjan van de Ven <[email protected]>
Reported-by: Randy Dunlap <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Wang Nan <[email protected]>
Fixes: b31e3e3316a7 ("tools lib api fs: Use str_error_r()")
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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tools lib api: Add debug output support

Adding support for warning/info/debug output within libapi code. Adding
following macros:

pr_warning(fmt, ...)
pr_info(fmt, ...)
pr_debug(fmt, ...)

Al

tools lib api: Add debug output support

Adding support for warning/info/debug output within libapi code. Adding
following macros:

pr_warning(fmt, ...)
pr_info(fmt, ...)
pr_debug(fmt, ...)

Also adding libapi_set_print function to set above functions. This will
be used in perf to set standard debug handlers for libapi.

Adding 2 header files:
debug.h
- to be used outside libapi, contains
libapi_set_print interface

debug-internal.h
- to be used within libapi, contains
pr_warning/pr_info/pr_debug definitions

Signed-off-by: Jiri Olsa <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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tools lib api cpu: Introduce cpu.[ch] to obtain cpu related information

E.g.:

$ ./cpu__get_max_freq
3200000

It does that, as Kan's patch does, by looking at these files:

$ cat /sys/devices/sy

tools lib api cpu: Introduce cpu.[ch] to obtain cpu related information

E.g.:

$ ./cpu__get_max_freq
3200000

It does that, as Kan's patch does, by looking at these files:

$ cat /sys/devices/system/cpu/online
0-3
$ ./sysfs__read_ull
devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq=3200000
$

I.e. find out the first online CPU, then read its cpufreq info.

But do it in tools/lib/api/, so that other tools/ living code can use
it, not just perf.

Based-on-a-patch-by: Kan Liang <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Wang Nan <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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tools lib api: Rename libapikfs.a to libapi.a

Renaming libapikfs.a to libapi.a, because it's not just 'fs' specific
library now.

Signed-off-by: Jiri Olsa <[email protected]>
Tested-by: Sukadev Bhatt

tools lib api: Rename libapikfs.a to libapi.a

Renaming libapikfs.a to libapi.a, because it's not just 'fs' specific
library now.

Signed-off-by: Jiri Olsa <[email protected]>
Tested-by: Sukadev Bhattiprolu <[email protected]>
Tested-by: Will Deacon <[email protected]>
Cc: Alexis Berlemont <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Corey Ashford <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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tools lib api: Use tools build framework

Move the libapikfs library building under tools build framework.

Signed-off-by: Jiri Olsa <[email protected]>
Tested-by: Sukadev Bhattiprolu <[email protected]

tools lib api: Use tools build framework

Move the libapikfs library building under tools build framework.

Signed-off-by: Jiri Olsa <[email protected]>
Tested-by: Sukadev Bhattiprolu <[email protected]>
Tested-by: Will Deacon <[email protected]>
Cc: Alexis Berlemont <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Corey Ashford <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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