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e55848a4f8
arch_uprobe_analyze_insn() calls handle_riprel_insn() at the start, but only "0xff" and "default" cases need the UPROBE_FIX_RIP_ logic. Move the callsite into "default" case and change the "0xff" case to fall-through. We are going to add the various hooks to handle the rip-relative jmp/call instructions (and more), we need this change to enforce the fact that the new code can not conflict with is_riprel_insn() logic which, after this change, can only be used by default_xol_ops. Note: arch_uprobe_abort_xol() still calls handle_riprel_post_xol() directly. This is fine unless another _xol_ops we may add later will need to reuse "UPROBE_FIX_RIP_AX|UPROBE_FIX_RIP_CX" bits in ->fixup. In this case we can add uprobe_xol_ops->abort() hook, which (perhaps) we will need anyway in the long term. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Reviewed-by: Jim Keniston <jkenisto@us.ibm.com> Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> |
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