On Tue, Apr 09, 2019 at 02:52:39PM +0100, Raphael Gault wrote: > The decoding of the instruction is split into classes and subclasses as > described into > the Instruction Encoding in the ArmV8.5 Architecture Reference Manual.
> tools/objtool/arch/arm64/decode.c | 2843 +++++++++++++++++ Oh man, I hope you generated much of that from the ARM64 Instruction Set Architecture XML files [*]. Otherwise that's been a lot of typing. Anyway, since you now have that, would it make sense to use this same decoder in your kernel tree? I found at least one partial decoder in arch/arm64/kernel/probes/decode-insn.c, but I suspect you have more. (Note kprobes is how x86 initially grew its instruction decoder IIRC) * https://developer.arm.com/architectures/cpu-architecture/a-profile/exploration-tools
