linux-toradex.git/tools/build, branch v4.6-rc7

tools build: Use .s extension for preprocessed assembler code

2016-03-03T14:10:37+00:00

The "man gcc" says .i extension represents the file is C source code
that should not be preprocessed.  Here, .s should be used.

For clarification,
  .c  ---(preprocess)--->  .i
  .S  ---(preprocess)--->  .s

Signed-off-by: Masahiro Yamada 
Acked-by: Jiri Olsa 
Cc: Aaro Koskinen 
Cc: Adrian Hunter 
Cc: Lukas Wunner 
Link: http://lkml.kernel.org/r/1454263140-19670-1-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Arnaldo Carvalho de Melo

perf build: Add libcrypto feature detection

2016-02-05T12:46:45+00:00

Will be used to generate build-ids in the jitdump code.

Signed-off-by: Stephane Eranian 
Cc: Adrian Hunter 
Cc: Andi Kleen 
Cc: Carl Love 
Cc: David Ahern 
Cc: Jiri Olsa 
Cc: John McCutchan 
Cc: Namhyung Kim 
Cc: Pawel Moll 
Cc: Peter Zijlstra 
Cc: Sonny Rao 
Cc: Sukadev Bhattiprolu 
Link: http://lkml.kernel.org/r/1448874143-7269-3-git-send-email-eranian@google.com
[ tools/perf/Makefile.perf comment about NO_LIBCRYPTO and added it to tests/make ]
Signed-off-by: Arnaldo Carvalho de Melo

perf build: Fix feature-dump checks, we need to test all features

2016-01-28T22:04:19+00:00

I see problem with test-all case speedup, because it does not
comprise checks for 32bits compilations, fix it.

The problem could be noticed by calling:

  make -C tools/perf feature-dump

That would end up misdetecting the feature-compile-x32, that, building
using 'gcc -mx32' needs stub headers not present in a fedora 23 devel
machine and thus fail to compile, but ended up appearing as detected,
i.e. present in tools/perf/FEATURE-DUMP as 'feature-compile-x32=1'.

With this fix it correctly appears as 'feature-compile-x32=0' and if we
uninstall the libc devel files for 32 bits (glibc-devel.i686), then the
relevant variable is flipped from 'feature-compile-32=1' to
'feature-compile-32=0'.

The same things happened for bionic and libbabeltrace, that were
misdetected because the are no tested in test-all.c

Reported-and-Tested-by: Arnaldo Carvalho de Melo 
Signed-off-by: Jiri Olsa 
Cc: Wang Nan 
Link: http://lkml.kernel.org/n/tip-u0sjaddf1r9m8icpd98ry7fz@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools build: Check basic headers for test-compile feature checker

2016-01-27T14:59:32+00:00

An i386 binary can be linked correctly even without correct headers.
Which causes problem. For exmaple:

 $ mv /tmp/oxygen_root/usr/include/gnu/stubs-32.h{,.bak}
 $ make tools/perf
 Auto-detecting system features:
 ...                         dwarf: [ on  ]
 [SNIP]
   GEN      common-cmds.h
   CC       perf-read-vdso32
 In file included from /tmp/oxygen_root/usr/include/features.h:388:0,
                  from /tmp/oxygen_root/usr/include/stdio.h:27,
                  from perf-read-vdso.c:1:
 /tmp/oxygen_root/usr/include/gnu/stubs.h:7:27: fatal error: gnu/stubs-32.h: No such file or directory
  # include 
                           ^
 compilation terminated.
 ...

In this patch we checks not only compiler and linker, but also basic
headers in test-compile test case, make it fail on a platform
lacking correct headers.

Signed-off-by: Wang Nan 
Acked-by: Jiri Olsa 
Cc: Li Zefan 
Link: http://lkml.kernel.org/r/1453893742-20603-1-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo

tools build: Allow subprojects select all feature checkers

2016-01-26T15:12:48+00:00

Put feature checkers not in original FEATURE_TESTS to a new list and
allow subproject select all feature checkers by setting FEATURE_TESTS to
'all'.

Signed-off-by: Wang Nan 
Cc: "David S. Miller" 
Cc: Alexei Starovoitov 
Cc: Brendan Gregg 
Cc: Daniel Borkmann 
Cc: He Kuang 
Cc: Jiri Olsa 
Cc: Li Zefan 
Cc: Masami Hiramatsu 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Will Deacon 
Link: http://lkml.kernel.org/r/1453715801-7732-4-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo

tools build: Add BPF feature check to test-all

2016-01-11T22:22:21+00:00

The test-all.c file doesn't check BPF related features. For an
environment with all other features enabled, BPF would be considered
enabled without doing real feature check.

This patch adds test-bpf.c into test-all.c.

Signed-off-by: Wang Nan 
Acked-by: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Zefan Li 
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1452520124-2073-11-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Fix PowerPC native building

2016-01-11T22:22:20+00:00

Checks BPF syscall number, turn off libbpf building on platform doesn't
correctly support sys_bpf instead of blocking compiling.

Reported-and-Tested-by: Naveen N. Rao 
Signed-off-by: Wang Nan 
Acked-by: Jiri Olsa 
Cc: Sukadev Bhattiprolu 
Cc: Zefan Li 
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1452520124-2073-7-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo

tools build feature: Use value assignment form for FEATURE-DUMP file

2016-01-06T23:11:14+00:00

Changing the contents of the FEATURE-DUMP file, so it looks like:

  feature-backtrace=1
  feature-dwarf=0
  feature-fortify-source=1
  feature-sync-compare-and-swap=0

This way it could get included in sub projects, so they won't be forced
to redo features detection.

Also now storing the complete set of features.

Signed-off-by: Jiri Olsa 
Tested-by: Wang Nan 
Cc: David Ahern 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Zefan Li 
Cc: pi3orama 
Link: http://lkml.kernel.org/r/1450893514-9158-5-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools build feature: Introduce feature_assign macro

2016-01-06T23:11:13+00:00

The feature_assign macro generates feature value
assignment for name, like:

  $(call feature_assign,dwarf) == feature-dwarf=1

This will be used more in following patches.

Signed-off-by: Jiri Olsa 
Tested-by: Wang Nan 
Cc: David Ahern 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Zefan Li 
Cc: pi3orama 
Link: http://lkml.kernel.org/r/1450893514-9158-4-git-send-email-jolsa@kernel.org
[ Rename it to feature_assign, the original shorter name was misleading, to say the least ;-) ]
Signed-off-by: Arnaldo Carvalho de Melo

tools build feature: Move dwarf post unwind choice output into perf

2016-01-06T23:11:13+00:00

We decide what dwarf unwind to choose way after the Makefile.feature
makefile is included. The $(dwarf-post-unwind) is not even set at that
time. For the same reason it was never included in FEATURE-DUMP file.

Moving it into perf VF=1 verbose display.

  $ make VF=1
    BUILD:   Doing 'make -j4' parallel build
  Auto-detecting system features:
  ...                         dwarf: [ on  ]
  ...
  ...                 LIBUNWIND_DIR:
  ...                     LIBDW_DIR:
  ...     DWARF post unwind library: libunwind
  ...

Signed-off-by: Jiri Olsa 
Tested-by: Wang Nan 
Cc: David Ahern 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Zefan Li 
Cc: pi3orama 
Link: http://lkml.kernel.org/r/1450893514-9158-3-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo