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2b14a78cd0
Following x86-64 patches. Reuses code from them in fact. Convert the standard backtracer to do all output using callbacks. Use the x86-64 stack tracer implementation that uses these callbacks to implement the stacktrace interface. This allows to use the new dwarf2 unwinder for stacktrace and get better backtraces. Cc: mingo@elte.hu Signed-off-by: Andi Kleen <ak@suse.de>