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| author |   Heiko Carstens <heiko.carstens@de.ibm.com> | 2009-04-23 13:58:10 +0200 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-04-23 13:58:18 +0200 |
| commit | 75ee034addc9ac3f6a38a9e6b30e9b54be15d4e5 (patch) | |
| tree | fd7abe59eb592267284919a26d0778c4e951d772 | |
| parent | [S390] Use tape_generic_offline directly. (diff) | |
| download | linux-dev-75ee034addc9ac3f6a38a9e6b30e9b54be15d4e5.tar.xz linux-dev-75ee034addc9ac3f6a38a9e6b30e9b54be15d4e5.zip | |
[S390] omit frame pointers on s390 when possible
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@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| -rw-r--r-- | lib/Kconfig.debug | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index c6e854f215fa..812c28207baf 100644 --- a/lib/Kconfig.debug +++ b/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 |