Re: [PATCH 2/2] ftrace - add ftrace function_graph support on ARM

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On Fri, Mar 05, 2010 at 04:36:47PM -0800, Tim Bird wrote:
> IRQENTRY_TEXT was added to vmlinux.lds.S (to eliminate
> a compiler error on kernel/trace/trace_functions_graph.c),
> although no routines were marked as __irq_entry.

Well, ARM already places the assembly exception text in its own separate
section for other reasons.  We can't place it in two sections.

What is __irq_entry used for?  Just the low level assembly or C functions?
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