feat(kernel: memory): switch to a higher-half kernel #7
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The kernel's code is now virtually relocated at 0xC000000 by the linker. > BREAKING ! This has been done to switch to a higher-half kernel design. In its current state, the kernel cannot startup, as we need to temporarily activate paging for the C startup code to be executed normally.
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This looks ready to merge ! I just got one issue, i cannot seem to get GDB working after switching to higher-half. We should fix this issue before merging, this is a pain in the a** when debugging. edit: fixed with 978dc95 |
Since switching to a higher-half kernel, placing the "target remote ..." inside the gdbinit script seems to make GDB crash. Having it executed as a CLI argument seems to be a working alternative. This script lets us chose which symbol we want to set a breakpoint on, instead of hardcoding it to kernel_main inside the gdbinit script.
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What ?
Virtually relocate our kernel's code into the higher-half of the address space (0xC0000000).
Why ?
This will simplify the process of including our kernel's code into userland processes later on, and make it easier to link them against our kernel.
Please refer to the related issue (#6) for detailed information.
Related issue
Resolves #6