summaryrefslogtreecommitdiff
path: root/tools/perf/Makefile.perf
diff options
context:
space:
mode:
authorJiri Olsa <jolsa@redhat.com>2014-02-19 19:52:57 +0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2014-02-24 16:29:36 +0400
commit5ea8415407a76c4a85ac971ec82d110161cd77f1 (patch)
treeb9fc3f0b4c9b37d8a35407d953a06910b1c79d56 /tools/perf/Makefile.perf
parent45757895c785e0a4c10afd5670cdc26cea2bbc97 (diff)
downloadlinux-5ea8415407a76c4a85ac971ec82d110161cd77f1.tar.xz
perf tools: Add libdw DWARF post unwind support
Adding libdw DWARF post unwind support, which is part of elfutils-devel/libdw-dev package from version 0.158. The new code is contained in unwin-libdw.c object, and implements unwind__get_entries unwind interface function. New Makefile variable NO_LIBDW_DWARF_UNWIND was added to control its compilation, and is marked as disabled now. It's factored with the rest of the Makefile unwind build code in the next patch. Arch specific code was added for x86. 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/1392825179-5228-5-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Makefile.perf')
-rw-r--r--tools/perf/Makefile.perf11
1 files changed, 11 insertions, 0 deletions
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index bde91f8307ff..2dff0b8ed611 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -57,6 +57,12 @@ include config/utilities.mak
# Define NO_LIBAUDIT if you do not want libaudit support
#
# Define NO_LIBBIONIC if you do not want bionic support
+#
+# Define NO_LIBDW_DWARF_UNWIND if you do not want libdw support
+# for dwarf backtrace post unwind.
+
+# temporarily disabled
+NO_LIBDW_DWARF_UNWIND := 1
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(shell pwd)))
@@ -478,6 +484,11 @@ ifndef NO_DWARF
endif # NO_DWARF
endif # NO_LIBELF
+ifndef NO_LIBDW_DWARF_UNWIND
+ LIB_OBJS += $(OUTPUT)util/unwind-libdw.o
+ LIB_H += util/unwind-libdw.h
+endif
+
ifndef NO_LIBUNWIND
LIB_OBJS += $(OUTPUT)util/unwind-libunwind.o
endif