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perf: add libunwind support

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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.

(From OE-Core rev: 10dfa4ee4e05841be3d3caaa28778aa40b782f97)

Signed-off-by: Chong Lu <Chong.Lu@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Chong Lu
2014-09-08 12:58:25 +01:00
committed by Richard Purdie
parent 9204cacefe
commit 124ad80870
2 changed files with 5 additions and 2 deletions
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2
meta/recipes-kernel/perf/perf-features.inc
View File

@@ -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):
"""

5
meta/recipes-kernel/perf/perf.bb
View File

@@ -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 += "\