diff options
| author | dann <dann@xtensa-linux.org> | 2008-05-21 17:43:50 -0700 |
|---|---|---|
| committer | Chris Zankel <chris@zankel.net> | 2013-02-23 19:22:54 -0800 |
| commit | e6ffe17ec45dd763ee8278246a112562f64a4ef2 (patch) | |
| tree | 3efe66a318764e0aeab4385eb407ec597f1f9f9b /arch/xtensa/Makefile | |
| parent | 2d6f82fee45a52359012948306587eba704cf35b (diff) | |
xtensa: add support for oprofile
Support call graph profiling.
Keep upper two bits of PC unchanged through backtrace rather than take
them from sp (a1). The stack pointer is usually in the same GB (same
upper 2 bits) as PC, but technically doesn't always have to be (and
might not in the future, when taking full advantage of MMU v3).
Signed-off-by: Dan Nicolaescu <dann@xtensa-linux.org>
Signed-off-by: Pete Delaney <piet@tensilica.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'arch/xtensa/Makefile')
| -rw-r--r-- | arch/xtensa/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile index afec8f000c4..136224b74d4 100644 --- a/arch/xtensa/Makefile +++ b/arch/xtensa/Makefile @@ -87,6 +87,7 @@ core-y += arch/xtensa/kernel/ arch/xtensa/mm/ core-y += $(buildvar) $(buildplf) libs-y += arch/xtensa/lib/ $(LIBGCC) +drivers-$(CONFIG_OPROFILE) += arch/xtensa/oprofile/ ifneq ($(CONFIG_BUILTIN_DTB),"") core-$(CONFIG_OF) += arch/xtensa/boot/dts/ |