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Conflicts:
MAINTAINERS
arch/arm/mm/fault.c
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Since gcc 4.4 the name and calling convention for function profiling
on ARM changed. With this patch both types are supported.
See http://sourceware.org/ml/libc-ports/2008-04/msg00009.html for some
details.
Lightly-Tested-by: Anand Gadiyar <gadiyar@ti.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
As __builtin_return_address(n) doesn't work for ARM with n > 0, the
kernel needs its own implementation.
This fixes many warnings saying:
warning: unsupported argument to '__builtin_return_address'
The new methods and walk_stackframe must not be instrumented because
CALLER_ADDRESSx is used in the various tracers and tracing the tracer is
a bad idea.
What's currently missing is an implementation using unwind tables. This
is not fatal though, it's just that the tracers don't get enough
information to be really useful.
Note that if both ARM_UNWIND and FRAME_POINTER are enabled,
walk_stackframe uses unwind information. So in this case the same
implementation is used as when FRAME_POINTER is disabled.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Due to confusion between the ftrace infrastructure and the gcc profiling
tracer "ftrace", this patch renames the config options from FTRACE to
FUNCTION_TRACER. The other two names that are offspring from FTRACE
DYNAMIC_FTRACE and FTRACE_MCOUNT_RECORD will stay the same.
This patch was generated mostly by script, and partially by hand.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Move platform independent header files to arch/arm/include/asm, leaving
those in asm/arch* and asm/plat* alone.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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