diff options
| author | Jiri Olsa | 2014-02-19 16:52:57 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2014-02-24 13:29:36 +0100 |
| commit | 5ea8415407a76c4a85ac971ec82d110161cd77f1 (patch) | |
| tree | b9fc3f0b4c9b37d8a35407d953a06910b1c79d56 /tools/perf/Makefile.perf | |
| parent | perf tools: Add feature check for libdw dwarf unwind (diff) | |
| download | kernel-qcow2-linux-5ea8415407a76c4a85ac971ec82d110161cd77f1.tar.gz kernel-qcow2-linux-5ea8415407a76c4a85ac971ec82d110161cd77f1.tar.xz kernel-qcow2-linux-5ea8415407a76c4a85ac971ec82d110161cd77f1.zip | |
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.perf | 11 |
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 |