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| author | Rabin Vincent <rabin@rab.in> | 2010-11-06 23:03:53 +0530 |
|---|---|---|
| committer | Rabin Vincent <rabin@rab.in> | 2010-11-19 21:43:28 +0530 |
| commit | 0e341af835fdf553820a1fa98341b93ab32ce466 (patch) | |
| tree | 633b4088fdf119931a5a3039e6b83bc1b9245a42 /arch/arm/Kconfig | |
| parent | dd686eb13959e49a1112fd608c124ab711050582 (diff) | |
| download | blackbird-op-linux-0e341af835fdf553820a1fa98341b93ab32ce466.tar.gz blackbird-op-linux-0e341af835fdf553820a1fa98341b93ab32ce466.zip | |
ARM: ftrace: enable function graph tracer
Add the options to enable the function graph tracer on ARM. Function
graph tracer support requires frame pointers, so exclude Thumb-2 and
also make sure FRAME_POINTER gets enabled when FUNCTION_GRAPH_TRACER is
used, since FUNCTION_TRACER doesn't "select FRAME_POINTER" when
ARM_UNWIND is used. Therefore, with GCC 4.4.0+, you get plain function
tracing without frame pointers, but you'll need them if you want
function graph tracing.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Rabin Vincent <rabin@rab.in>
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 8ae3d48d504c..bd620a481bee 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -14,6 +14,7 @@ config ARM select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL) select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL) + select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL) select HAVE_GENERIC_DMA_COHERENT select HAVE_KERNEL_GZIP select HAVE_KERNEL_LZO |
