mirror addresses

[esaulenka]

Sorry for question, but i don't found, how to specify that addresses 0x80001234 and 0xA0001234 point to the same location?

[mumbel]

Not certain on best approach, but you can file->'add to program' and select same ROM. In that popup you'll want to click 'Options' where you can specify alternate load address, offset into file, data Len, and block name

[esaulenka]

Ok, thanks. IDA converts this automatically (when i name dword 0xA000abcd as pointer, it become indicate to 0x8000abcd).
For me, this task looks like good start point to learn how to write plugins for Ghidra ;-)

[mumbel]

I asked a Dev in my pull request. Seems possible both in code and when loading from his answer

[mumbel]

Sorry hadn't had much time to play with this. Do not know how to automate this, but it seems really good from a quick glance with this setup:

• load rom at 0x80000000, don't auto-analyze yet
• open memory map settings, add new, add a name, offset 0xA0000000, length 0x180000, click execute check-box, choose byte-mapped in drop down, new address option should already be 0x80000000.
• open memory map settings, add new, add a name, offset 0xC0000000, length 0x180000, click execute check-box, choose byte-mapped in drop down, new address option should already be 0x80000000.
• save memory map
• auto-analyze
  e/ well maybe i don't know what i'm looking at, seeing some issues. but is this closer to what you were looking for