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Kconfig.debug: Add FRAME_POINTER anti-dependency for ARC
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Frame pointer on ARC doesn't serve the conventional purpose of stack
unwinding due to the typical way ABI designates it's usage.
Thus it's explicit usage on ARC is discouraged (gcc is free to use it,
for some tricky stack frames even if -fomit-frame-pointer).

Hence no point enabling it for ARC.

References: http://www.spinics.net/lists/kernel/msg1593937.html
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: "Paul E. McKenney" <paul.mckenney@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: linux-kernel@vger.kernel.org
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vineetgarc committed Sep 5, 2013
1 parent 7efd0da commit cc80ae3
Showing 1 changed file with 3 additions and 3 deletions.
6 changes: 3 additions & 3 deletions lib/Kconfig.debug
Original file line number Diff line number Diff line change
Expand Up @@ -908,7 +908,7 @@ config LOCKDEP
bool
depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
select STACKTRACE
select FRAME_POINTER if !MIPS && !PPC && !ARM_UNWIND && !S390 && !MICROBLAZE
select FRAME_POINTER if !MIPS && !PPC && !ARM_UNWIND && !S390 && !MICROBLAZE && !ARC
select KALLSYMS
select KALLSYMS_ALL

Expand Down Expand Up @@ -1347,7 +1347,7 @@ config FAULT_INJECTION_STACKTRACE_FILTER
depends on FAULT_INJECTION_DEBUG_FS && STACKTRACE_SUPPORT
depends on !X86_64
select STACKTRACE
select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND
select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND && !ARC
help
Provide stacktrace filter for fault-injection capabilities

Expand All @@ -1357,7 +1357,7 @@ config LATENCYTOP
depends on DEBUG_KERNEL
depends on STACKTRACE_SUPPORT
depends on PROC_FS
select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND
select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND && !ARC
select KALLSYMS
select KALLSYMS_ALL
select STACKTRACE
Expand Down

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