Re: [PATCH v4 0/2] perf: config: add per-feature check flags

[Ingo Molnar <mingo@kernel.org>]

* Jean Pihet <jean.pihet@linaro.org> wrote:

> 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 test-all, 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                | 52 ++++++++++++++++++-------------
>  tools/perf/config/feature-checks/Makefile |  8 ++---
>  2 files changed, 34 insertions(+), 26 deletions(-)

Acked-by: Ingo Molnar <mingo@kernel.org>

Thanks,

	Ingo