linux-kernel - [PATCH] perf build: Display EXTRA features for VF=1 build

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Message-ID: <20180109092646.GB11520@krava>
Date:   Tue, 9 Jan 2018 10:26:46 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Jiri Olsa <jolsa@...nel.org>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        David Ahern <dsahern@...il.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Subject: [PATCH] perf build: Display EXTRA features for VF=1 build

On Mon, Jan 08, 2018 at 06:16:49PM +0100, Jiri Olsa wrote:
> On Mon, Jan 08, 2018 at 06:11:22PM +0100, Jiri Olsa wrote:
> > On Mon, Jan 08, 2018 at 12:24:33PM -0300, Arnaldo Carvalho de Melo wrote:
> > 
> > SNIP
> > 
> > > 
> > > Works:
> > > 
> > > [acme@...et perf]$ ldd ~/bin/perf | grep babel
> > > 	libbabeltrace-ctf.so.1 => /lib64/libbabeltrace-ctf.so.1 (0x00007fcb688d0000)
> > > 	libbabeltrace.so.1 => /lib64/libbabeltrace.so.1 (0x00007fcb67e92000)
> > > [acme@...et perf]$ rpm -q libbabeltrace-devel
> > > libbabeltrace-devel-1.5.3-1.fc27.x86_64
> > > [acme@...et perf]$
> > > 
> > > But then, if we show:
> > > 
> > > Auto-detecting system features:
> > > ...                         dwarf: [ on  ]
> > > ...            dwarf_getlocations: [ on  ]
> > > ...                         glibc: [ on  ]
> > > ...                          gtk2: [ on  ]
> > > ...                      libaudit: [ on  ]
> > > ...                        libbfd: [ on  ]
> > > ...                        libelf: [ on  ]
> > > ...                       libnuma: [ on  ]
> > > ...        numa_num_possible_cpus: [ on  ]
> > > ...                       libperl: [ on  ]
> > > ...                     libpython: [ on  ]
> > > ...                      libslang: [ on  ]
> > > ...                     libcrypto: [ on  ]
> > > ...                     libunwind: [ on  ]
> > > ...            libdw-dwarf-unwind: [ on  ]
> > > ...                          zlib: [ on  ]
> > > ...                          lzma: [ on  ]
> > > ...                     get_cpuid: [ on  ]
> > > ...                           bpf: [ on  ]
> > > 
> > > Shoudln't we tell the user that babeltrace was linked too?
> > 
> > the logic is just to simply display the state of features
> > which we provide in FEATURE_DISPLAY variable, which is
> > believed to be common and important enough to display
> > status about
> > 
> > maybe we could display it with 'make VF=1' output?
> 
> like in patch attached ;-)

with changelog

thanks,
jirka


---
Display state of the rest of the features (FEATURE_TESTS_EXTRA)
for 'make VF=1' build. These features are detected manually by
perf's Makefile.config so they can't be displayed with the
main list, but only after we're done in Makefile.config.

  $ make VF=1
    BUILD:   Doing 'make -j4' parallel build

  Auto-detecting system features:
  ...                         dwarf: [ on  ]
  ...            dwarf_getlocations: [ on  ]
  ...                         glibc: [ on  ]
  ...                          gtk2: [ on  ]

SNIP

  ...                       timerfd: [ on  ]
  ...                  sched_getcpu: [ on  ]
  ...                           sdt: [ on  ]
  ...                         setns: [ on  ]

extra features:
  ...                        bionic: [ OFF ]
  ...                    compile-32: [ on  ]
  ...                   compile-x32: [ OFF ]
  ...                cplus-demangle: [ on  ]
  ...                         hello: [ OFF ]
  ...                 libbabeltrace: [ on  ]
  ...                       liberty: [ on  ]
  ...                     liberty-z: [ on  ]
  ...         libunwind-debug-frame: [ OFF ]
  ...     libunwind-debug-frame-arm: [ OFF ]
  ... libunwind-debug-frame-aarch64: [ OFF ]

SNIP

Link: http://lkml.kernel.org/n/tip-q4r73p2c6wfag2s38fpsim8v@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/perf/Makefile.config | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 12dec6ea5ed2..92265b32dddd 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -947,6 +947,10 @@ define print_var_code
 endef
 
 ifeq ($(VF),1)
+  # Display EXTRA features which are detected manualy
+  # from here with feature_check call and thus cannot
+  # be partof global state output.
+  $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),))
   $(call print_var,prefix)
   $(call print_var,bindir)
   $(call print_var,libdir)
-- 
2.13.6