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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2010-11-10 10:05:56 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-11-10 10:05:54 +0100 |
| commit | becf91f18750cf1c60828aa2ee63a36b05c2e4d0 (patch) | |
| tree | 3b97a843ef2aaad89250ec8b8897474ad0169c44 /kernel | |
| parent | [S390] mm: add devmem_is_allowed() for STRICT_DEVMEM checking (diff) | |
| download | linux-becf91f18750cf1c60828aa2ee63a36b05c2e4d0.tar.xz linux-becf91f18750cf1c60828aa2ee63a36b05c2e4d0.zip | |
[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/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index e04b8bcdef88..ea37e2ff4164 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 |