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10-27-2022, 06:19 AM | #1 | |
Join Date: Apr 2022
Posts: 3
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Quote:
The bad news - these binaries from MSE6.0 has near 3000 different routines ISO of 900-1000 for any Honda Keihin ECU. And the worst thing of all - address offsets are relative. r13 and r2 values are used as a reference for address offsets - this registers are writen at the inition of 2 binary sections with OPCODE. r2 and r13 values can be found searching for r2 and r13 operand usage in opcode window. But the 90% of routines still need to be executed in order to found which address it uses (maybe there is another way to do it, I don't know). It means that Ghidra doesn't detects references to addresses unless you execute this particular routine and creates a references to all addrsses it W/R. A true PITA cos it's veery difficult to create decent memory map. And without memory map theere is no way to analyse the routines. Personally I'm stuck with this ECU - of course I can see the maps, create xdf and so on but can't analyse the OPCODE as I'd like to. P.D. Just sorted the reference problem - now all references to RAM are correct! Last edited by hexman; 11-07-2022 at 09:39 AM. Reason: Update |
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