From: Heiko Carstens <heiko.carstens@xxxxxxxxxx> Always omit frame pointers on s390. They aren't too useful for the kernel since we have already the kernel stack backchain which allows us to walk the kernel stack. So eleminate the extra code for frame pointers. Only allow the extra code for the function tracer since the gcc compile options -pg and -fomit-frame-pointer are incompatible. Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx> Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx> --- lib/Kconfig.debug | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) Index: quilt-2.6/lib/Kconfig.debug =================================================================== --- quilt-2.6.orig/lib/Kconfig.debug +++ quilt-2.6/lib/Kconfig.debug @@ -440,7 +440,7 @@ config LOCKDEP bool depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT select STACKTRACE - select FRAME_POINTER if !X86 && !MIPS && !PPC && !ARM_UNWIND + select FRAME_POINTER if !X86 && !MIPS && !PPC && !ARM_UNWIND && !S390 select KALLSYMS select KALLSYMS_ALL @@ -620,7 +620,7 @@ config ARCH_WANT_FRAME_POINTERS config FRAME_POINTER bool "Compile the kernel with frame pointers" depends on DEBUG_KERNEL && \ - (CRIS || M68K || M68KNOMMU || FRV || UML || S390 || \ + (CRIS || M68K || M68KNOMMU || FRV || UML || \ AVR32 || SUPERH || BLACKFIN || MN10300) || \ ARCH_WANT_FRAME_POINTERS default y if (DEBUG_INFO && UML) || ARCH_WANT_FRAME_POINTERS @@ -809,13 +809,13 @@ config FAULT_INJECTION_STACKTRACE_FILTER depends on FAULT_INJECTION_DEBUG_FS && STACKTRACE_SUPPORT depends on !X86_64 select STACKTRACE - select FRAME_POINTER if !PPC + select FRAME_POINTER if !PPC && !S390 help Provide stacktrace filter for fault-injection capabilities config LATENCYTOP bool "Latency measuring infrastructure" - select FRAME_POINTER if !MIPS && !PPC + select FRAME_POINTER if !MIPS && !PPC && !S390 select KALLSYMS select KALLSYMS_ALL select STACKTRACE -- blue skies, Martin. "Reality continues to ruin my life." - Calvin. -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
