[OE-core] [PATCH 2/2] perf: add libunwind support
Chong Lu
Chong.Lu at windriver.com
Tue Sep 9 06:27:20 UTC 2014
ping
On 08/29/2014 04:38 PM, Chong Lu wrote:
> Add a new feature named 'perf-libunwind'. Adding this support to perf allows it
> to do stack traces on ARM - thumb2 and MIPS targets. PERF_FEATURES variable in
> perf-features.inc will enable the perf-libunwind.
>
> Signed-off-by: Chong Lu <Chong.Lu at windriver.com>
> ---
> meta/recipes-kernel/perf/perf-features.inc | 2 +-
> meta/recipes-kernel/perf/perf.bb | 5 ++++-
> 2 files changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/meta/recipes-kernel/perf/perf-features.inc b/meta/recipes-kernel/perf/perf-features.inc
> index b8859ab..2dbbb47 100644
> --- a/meta/recipes-kernel/perf/perf-features.inc
> +++ b/meta/recipes-kernel/perf/perf-features.inc
> @@ -1,4 +1,4 @@
> -PERF_FEATURES_ENABLE ?= "perf-scripting perf-tui"
> +PERF_FEATURES_ENABLE ?= "perf-scripting perf-tui perf-libunwind"
>
> def perf_feature_enabled(feature, trueval, falseval, d):
> """
> diff --git a/meta/recipes-kernel/perf/perf.bb b/meta/recipes-kernel/perf/perf.bb
> index bfd210c..ab94a05 100644
> --- a/meta/recipes-kernel/perf/perf.bb
> +++ b/meta/recipes-kernel/perf/perf.bb
> @@ -20,6 +20,7 @@ BUILDPERF_libc-uclibc = "no"
> # to cover a wide range of kernel we add both dependencies
> TUI_DEPENDS = "${@perf_feature_enabled('perf-tui', 'libnewt slang', '',d)}"
> SCRIPTING_DEPENDS = "${@perf_feature_enabled('perf-scripting', 'perl python', '',d)}"
> +LIBUNWIND_DEPENDS = "${@perf_feature_enabled('perf-libunwind', 'libunwind', '',d)}"
>
> DEPENDS = "virtual/kernel \
> virtual/${MLPREFIX}libc \
> @@ -27,6 +28,7 @@ DEPENDS = "virtual/kernel \
> ${MLPREFIX}binutils \
> ${TUI_DEPENDS} \
> ${SCRIPTING_DEPENDS} \
> + ${LIBUNWIND_DEPENDS} \
> bison flex \
> "
>
> @@ -62,6 +64,7 @@ B = "${WORKDIR}/${BPN}-${PV}"
>
> SCRIPTING_DEFINES = "${@perf_feature_enabled('perf-scripting', '', 'NO_LIBPERL=1 NO_LIBPYTHON=1',d)}"
> TUI_DEFINES = "${@perf_feature_enabled('perf-tui', '', 'NO_NEWT=1',d)}"
> +LIBUNWIND_DEFINES = "${@perf_feature_enabled('perf-libunwind', '', 'NO_LIBUNWIND=1',d)}"
>
> # The LDFLAGS is required or some old kernels fails due missing
> # symbols and this is preferred than requiring patches to every old
> @@ -76,7 +79,7 @@ EXTRA_OEMAKE = '\
> CC="${CC}" \
> AR="${AR}" \
> perfexecdir=${libexecdir} \
> - NO_GTK2=1 ${TUI_DEFINES} NO_DWARF=1 NO_LIBUNWIND=1 ${SCRIPTING_DEFINES} \
> + NO_GTK2=1 ${TUI_DEFINES} NO_DWARF=1 ${LIBUNWIND_DEFINES} ${SCRIPTING_DEFINES} \
> '
>
> EXTRA_OEMAKE += "\
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