> In this way, only one instruction is changed to convert code between nop > and call. This should meet dyn-ftrace's requirement. > But this requires CPU support brl instruction, so dyn-ftrace isn't > supported for old Itanium system. Assume there are quite few such old > system running. Perhaps very few old Merced systems are used for development and performance tuning (the kind of work where ftrace is useful). So not having ftrace support on them might not be too big a loss. -Tony -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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