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0695e57b9a
Currently the we display all detected features/libraries by following
rules:
- if one of the features is missing
- if it's build from clean tree
This patch changes changes this behavior in several ways.
- We no longer display all detected features, only detected libraries
are displayed by default:
$ make
BUILD: Doing 'make -j4' parallel build
Auto-detecting system features:
... dwarf: [ on ]
... glibc: [ on ]
... gtk2: [ on ]
... libaudit: [ on ]
... libbfd: [ on ]
... libelf: [ on ]
... libnuma: [ on ]
... libperl: [ on ]
... libpython: [ on ]
... libslang: [ on ]
... libunwind: [ on ]
The assumption is, that above libraries are the most interesting part
of the detection, while we don't care much about detection of on-exit
support.
- If all above libraries are detected, the default is not shown on
subsequent builds.
- If one of the above libraries is missing, the detection output is
forced.
- The features status is stored in PERF-FEATURES file and the detection
output is forced in case the there's difference between the file
contents and currently detected features.
- If you want to see all detected features, you can use VF=1 make
variable, that forces the detected features output.
$ make VF=1
BUILD: Doing 'make -j4' parallel build
Auto-detecting system features:
... dwarf: [ on ]
... glibc: [ on ]
... gtk2: [ on ]
... libaudit: [ on ]
... libbfd: [ on ]
... libelf: [ on ]
... libnuma: [ on ]
... libperl: [ on ]
... libpython: [ on ]
... libslang: [ on ]
... libunwind: [ on ]
... backtrace: [ on ]
... fortify-source: [ on ]
... gtk2-infobar: [ on ]
... libelf-getphdrnum: [ on ]
... libelf-mmap: [ on ]
... libpython-version: [ on ]
... on-exit: [ on ]
... stackprotector-all: [ on ]
... timerfd: [ on ]
... libunwind-debug-frame: [ OFF ]
... bionic: [ OFF ]
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1392825179-5228-2-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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| .. | ||
| feature-checks | ||
| Makefile | ||
| Makefile.arch | ||
| utilities.mak | ||