linux-kernel - [PATCH v2 0/2] perf: config: add per-feature check flags

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Date:	Tue,  3 Dec 2013 17:09:44 +0100
From:	Jean Pihet <jean.pihet@...aro.org>
To:	linux-kernel@...r.kernel.org, linaro-kernel@...ts.linaro.org,
	Jiri Olsa <jolsa@...hat.com>, Ingo Molnar <mingo@...nel.org>,
	Arnaldo <acme@...stprotocols.net>,
	Will Deacon <will.deacon@....com>
Cc:	patches@...aro.org, Jean Pihet <jean.pihet@...aro.org>
Subject: [PATCH v2 0/2] perf: config: add per-feature check flags

Add CFLAGS and LDFLAGS for each feature to be checked during the
build. This allows to pass particular flags and parameters to the
feature checks compilation.

Use the per-feature check flags for the unwinding feature in order
to correctly compile the libunwind and libunwind-debug-frame feature
checks.

This change set simplifies the flags passing mechanism between the
Makefiles in config/Makefile and config/feature-checks; this
could be farther optimized by moving the compilation flags to the
per-feature check flags for all features to be checked.

Tested on x86_64, ARMv7 and ARMv8 with and without LIBUNWIND_DIR=
set in 'make -C tools/perf'

Jean Pihet (2):
  perf: add per-feature check flags
  perf: unwinding: use the per-feature check flags

 tools/perf/config/Makefile                | 48 +++++++++++++++++--------------
 tools/perf/config/feature-checks/Makefile |  6 ++--
 2 files changed, 29 insertions(+), 25 deletions(-)

-- 
1.7.11.7

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