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"David S. Miller" <davem@davemloft.net> writes: > Takashi-san, have you ever investigated using kprobes to > implement this feature? It seems a perfect fit, and would > allow support on several architectures other than just x86 > and x86_64. > > If kprobes does not meet your needs completely, it could > be trivially extended to do so. kprobes would require an exception for each patchpoint because it uses an trap instruction. Probably a bit too costly for commonly used functions. Especially on a P4 exceptions are quite costly. But you could add lightweight kprobes that just use jmp for it in the kprobes framework, that might be useful for other stuff too -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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