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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>
Heiko Carstens 14 years ago
parent
ec6743bb06
commit
becf91f187
1 changed files with 1 additions and 1 deletions
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  1. 1 1
      kernel/trace/Kconfig

+ 1 - 1
kernel/trace/Kconfig
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@@ -126,7 +126,7 @@ if FTRACE
 
 config FUNCTION_TRACER
 
 config FUNCTION_TRACER
 
 	bool "Kernel Function Tracer"
 
 	bool "Kernel Function Tracer"
 
 	depends on HAVE_FUNCTION_TRACER
 
 	depends on HAVE_FUNCTION_TRACER
 
-	select FRAME_POINTER if (!ARM_UNWIND)
 
+	select FRAME_POINTER if !ARM_UNWIND && !S390
 
 	select KALLSYMS
 
 	select KALLSYMS
 
 	select GENERIC_TRACER
 
 	select GENERIC_TRACER
 
 	select CONTEXT_SWITCH_TRACER
 
 	select CONTEXT_SWITCH_TRACER