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ARM: 6314/1: ftrace: allow build without frame pointers on ARM

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With a new enough GCC, ARM function tracing can be supported without the
need for frame pointers.  This is essential for Thumb-2 support, since
frame pointers aren't available then.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Rabin Vincent
2010-08-10 19:32:37 +01:00
committed by Russell King
parent 7e9501fdec
commit 09bfafac3e
4 changed files with 22 additions and 1 deletions
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kernel/trace/Kconfig
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@@ -121,7 +121,7 @@ if FTRACE
config FUNCTION_TRACER
bool "Kernel Function Tracer"
depends on HAVE_FUNCTION_TRACER
select FRAME_POINTER
select FRAME_POINTER if (!ARM_UNWIND)
select KALLSYMS
select GENERIC_TRACER
select CONTEXT_SWITCH_TRACER