linux-toradex.git/tools/perf/config, branch v4.2.3

perf tools: Fix test build error when bindir contains double slash

2015-07-28T16:03:49+00:00

When building with a prefix ending with a slash, for example:

	$ make prefix=/usr/local/

one of the perf tests fail to compile due to BUILD_STR macro mishandling
bindir_SQ string containing with two slashes:

	-DBINDIR="BUILD_STR(/usr/local//bin)"

with the following error:

	  CC       tests/attr.o
	tests/attr.c: In function ‘test__attr’:
	tests/attr.c:168:50: error: expected ‘)’ before ‘;’ token
	  snprintf(path_perf, PATH_MAX, "%s/perf", BINDIR);
                                                  ^
	tests/attr.c:176:1: error: expected ‘;’ before ‘}’ token
	 }
	 ^
	tests/attr.c:176:1: error: control reaches end of non-void function [-Werror=return-type]
	 }
	 ^
	cc1: all warnings being treated as errors

This patch works around the problem by "cleaning" the bindir string
using make's abspath function.

Signed-off-by: Pawel Moll 
Acked-by: Jiri Olsa 
Cc: Adrian Hunter 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1438092613-21014-1-git-send-email-pawel.moll@arm.com
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Create config.detected into OUTPUT directory

2015-07-01T20:53:49+00:00

Create config.detected into OUTPUT directory instead of source
directory.

This fixes parallel builds that share the same source directory.

Signed-off-by: Aaro Koskinen 
Acked-by: Jiri Olsa 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1435751683-18500-1-git-send-email-aaro.koskinen@nokia.com
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Improve setting of gcc debug option

2015-05-27T15:21:45+00:00

Correct debugging experience is given by passing -Og to compiler.

Do it in a way that supports older compilers

Signed-off-by: Martin Liska 
Acked-by: Ingo Molnar 
Link: http://lkml.kernel.org/r/5564393C.1090104@suse.cz
Signed-off-by: Arnaldo Carvalho de Melo

perf build: Fix libunwind feature detection on 32-bit x86

2015-05-27T15:21:43+00:00

The libunwind feature would never detect because of the following error:

  $ cat tools/build/feature/test-libunwind.make.output
  /usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libunwind-x86.so: undefined reference to `lzma_stream_buffer_decode'
  /usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libunwind-x86.so: undefined reference to `lzma_index_uncompressed_size'
  /usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libunwind-x86.so: undefined reference to `lzma_index_end'
  /usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libunwind-x86.so: undefined reference to `lzma_index_buffer_decode'
  /usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libunwind-x86.so: undefined reference to `lzma_stream_footer_decode'
  /usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libunwind-x86.so: undefined reference to `lzma_index_size'
  collect2: error: ld returned 1 exit status

Fix by adding -llzma and re-ordering to match the dependencies.

Signed-off-by: Adrian Hunter 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Link: http://lkml.kernel.org/r/1432040746-1755-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo

perf build: Disable libdw DWARF unwind when built with NO_DWARF

2015-05-08T19:43:14+00:00

We get a linker error if we try to build with NO_DWARF since we build
util/unwind-libdw.c, but do not include -ldw

Signed-off-by: Naveen N. Rao 
Link: http://lkml.kernel.org/r/1430306131-6780-1-git-send-email-naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add build option NO_AUXTRACE to exclude AUX area tracing

2015-05-05T21:12:53+00:00

Add build option NO_AUXTRACE to exclude compiling support for AUX area
tracing. Support for both recording and processing is excluded and by
implication any future additions such as Intel PT and Intel BTS will
also not be compiled in with this option.

Signed-off-by: Adrian Hunter 
Acked-by: Jiri Olsa 
Cc: David Ahern 
Cc: Frederic Weisbecker 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/r/1430404667-10593-5-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo

perf build: Disable libbabeltrace check by default

2015-03-30T13:24:27+00:00

Disabling libbabeltrace check by default and replacing the
NO_LIBBABELTRACE make variable with LIBBABELTRACE.

Users wanting the libbabeltrace feature need to build via:

  $ make LIBBABELTRACE=1

The reason for this is that the libababeltrace interface we use (version
1.3) hasn't been packaged/released yet, thus the failing feature check
only slows down build and confuses other (non CTF) developers.

Requested-by: Ingo Molnar 
Signed-off-by: Jiri Olsa 
Acked-by: Ingo Molnar 
Cc: David Ahern 
Cc: Frederic Weisbecker 
Cc: Jeremie Galarneau 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Sebastian Andrzej Siewior 
Cc: Tom Zanussi 
Cc: Wang Nan 
Link: http://lkml.kernel.org/r/20150328103030.GA8431@krava.redhat.com
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add lzma decompression support for kernel module

2015-03-21T17:53:40+00:00

In short, Fedora compresses kernel modules now (since version 21) with
lzma compression.

Adding lzma decompress support into the dso.c:compressions array
introduced by Namhyung earlier.

Signed-off-by: Jiri Olsa 
Acked-by: Namhyung Kim 
Cc: Adrian Hunter 
Cc: Corey Ashford 
Cc: David Ahern 
Cc: Frederic Weisbecker 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/n/tip-2glp65kdtbrk0gblmirsjsnt@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf build: Move feature checks code under tools/build

2015-03-21T17:53:35+00:00

Moving feature checks code under tools/build directory.

Changing also $feature_dir to point to new feature directory location
and perf Makefiles to include Makefile.feature from new location.

Signed-off-by: Jiri Olsa 
Cc: Corey Ashford 
Cc: David Ahern 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/n/tip-3lamtb30dhf4wo99y1n8kxg0@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf build: Make features checks directory configurable

2015-03-21T17:53:34+00:00

Putting feature checks directory into $feature_dir, so it's easy to
configure when we move it to bools/build later.

Signed-off-by: Jiri Olsa 
Cc: Corey Ashford 
Cc: David Ahern 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/n/tip-sq2nsds6uk93372iyxcqcf6q@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo