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authorHeiko Carstens <heiko.carstens@de.ibm.com>2010-11-10 10:05:56 +0100
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2010-11-10 10:05:54 +0100
commitbecf91f18750cf1c60828aa2ee63a36b05c2e4d0 (patch)
tree3b97a843ef2aaad89250ec8b8897474ad0169c44 /kernel
parentec6743bb06510c7b629603ce35713d6ae9273579 (diff)
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[S390] ftrace: build without frame pointers on s390
s390 doesn't need FRAME_POINTERS in order to have a working function tracer. We don't need frame pointers in order to get strack traces since we always have valid backchains by using the -mkernel-backchain gcc option. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index e04b8bcdef8..ea37e2ff416 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -126,7 +126,7 @@ if FTRACE
config FUNCTION_TRACER
bool "Kernel Function Tracer"
depends on HAVE_FUNCTION_TRACER
- select FRAME_POINTER if (!ARM_UNWIND)
+ select FRAME_POINTER if !ARM_UNWIND && !S390
select KALLSYMS
select GENERIC_TRACER
select CONTEXT_SWITCH_TRACER