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- Debugging
- ---------
- Remote kernel debugging using QEMU und gdb:
- 1. Add -s -S options to qemu commandline (in run.sh). -s will setup remote debugging. -S starts QEMU in halted state.
- 2. Start gdb and enter ````target remote localhost:1234````
- 3. Enter ````continue````
- 4. The OS will boot. You can get a function's address by doing ````(write my-function eval-buf)````.
- 5. Press Ctrl-C in gdb to stop the machine.
- 5b. If you get strange errors, set up architecture: ````set architecture i386:x86-64:intel````
- 6. Disassemble the function, example: ````disassemble 0xd26d1f,+100````
- 7. Choose your breakpoint address and set it up: ````hbreak 0xd26d1f````
- 8. Enter ````continue```` to continue.
- 9. Call your function in bomberjacket, e.g. ````(my-function)````
- 10. gdb should stop execution in your function. You can now inspect everything, example: ````info registers````.
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