[PATCH] Return probe redesign: x86_64 specific changes
The following patch contains the x86_64 specific changes for the new return probe design. Changes include: * Removing the architecture specific functions for querying a return probe instance off a stack address * Complete rework onf arch_prepare_kretprobe() and trampoline_probe_handler() * Removing trampoline_post_handler() * Adding arch_init() so that now we handle registering the return probe trampoline instead of kernel/kprobes.c doing it NOTE: Note that with this new design, the dependency on calculating a pointer to the task off the stack pointer no longer exist (resolving the problem of interruption stacks as pointed out in the original feedback to this port.) Signed-off-by: NRusty Lynch <rusty.lynch@intel.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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