reverse_engineering:ghidra:create_a_project
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reverse_engineering:ghidra:create_a_project [2022/03/12 10:38] – kitor | reverse_engineering:ghidra:create_a_project [2022/03/13 15:59] – kitor | ||
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* Block name: as you wish, but something meaningful is recommended (eg ROM0, ROM1) | * Block name: as you wish, but something meaningful is recommended (eg ROM0, ROM1) | ||
* Base Address: | * Base Address: | ||
- | * Digic 6: ROM1 loads at 0xF0000000 | + | * Digic 6: ROM1 loads at '' |
- | * Digic 7,8,x: ROM0 loads at 0xE0000000 | + | * Digic 7,8,x: ROM0 loads at '' |
* Leave all other options as default. | * Leave all other options as default. | ||
Close by clicking OK on all dialogs, and then acknowledge the import result. File will appear in a project. | Close by clicking OK on all dialogs, and then acknowledge the import result. File will appear in a project. | ||
- | ===== Run disassembly | + | ===== Project preparation |
- | Jump to second level (DryOS) bootloader address (press ' | + | Click twice on newly imported file. It will bring up "Code Browser" |
- | * Digic 6: 0xF0 | + | |
- | * Digic 7,8: 0xE0040000 | + | |
- | * Digic X: 0xE0100000 | + | |
- | Press F12 to disassemble in Thumb mode. Wait for Ghidra to finish a task - it will discover a lot of functions so it will take some time. | + | Ghidra |
- | After it is done, we name that function `firmware_entry` | + | === Load 2nd ROM file (where applicable) === |
+ | |||
+ | Go to '' | ||
+ | |||
+ | Open '' | ||
+ | |||
+ | === Fix memory map === | ||
+ | |||
+ | Navigate to '' | ||
+ | |||
+ | === Add other memory regions === | ||
+ | |||
+ | This topic has a separate Wiki section: [[reverse_engineering: | ||
+ | |||
+ | == Result == | ||
+ | |||
+ | Complete memory map for EOS R 1.8.0 (internal 7.3.9) firmware: | ||
+ | |||
+ | {{ : | ||
===== Initial analysis ===== | ===== Initial analysis ===== | ||
- | Click twice on newly imported file. It will bring up "Code Browser" | + | Project is now ready to start disassembling. |
- | Ghidra will ask if you want to perform auto analysis now - select **No**. | + | === Run disassembly === |
- | === Fix memory map === | + | Jump to second level (DryOS) bootloader address (press ' |
+ | |||
+ | ^ CPU ^ Address | ||
+ | | Digic 6 | '' | ||
+ | | Digic 7,8 | '' | ||
+ | | Digic X | '' | ||
+ | |||
+ | Press F12 to disassemble in Thumb mode. Wait for Ghidra to finish a task - it will discover a lot of functions so it will take some time. | ||
- | Navigate to Window -> Memory Map. In the only existing row (representing loaded ROM image) __uncheck__ tick in " | + | After it is done, we name that function '' |
=== Run auto analysis === | === Run auto analysis === | ||
- | Navigate to Analysis -> Auto analysis "< | + | Navigate to '' |
There' | There' | ||
Line 64: | Line 86: | ||
* Disable " | * Disable " | ||
- | Run the analysis - it will take a long time. After it is done, you may want to run "one shot" analysis for Embedded media and for Create Address Tables - but YRMV. | + | Run the analysis - it will take a long time. After it is done, you may want to run "one shot" analysis for Embedded media and for Create Address Tables - but YMMV. |
reverse_engineering/ghidra/create_a_project.txt · Last modified: 2022/04/01 17:46 by kitor