Implement page fault handling

eikendev commented 4 years ago

The mandatory tasks are the following.

[ ] According to the book, our paging system should be able to translate from virtual to physical addresses and the inverse. We should provide an efficient lookup in both directions.
[x] Implement morecore to allow for unlimited dynamic allocations. #83
[x] Remove the static heap. #83
- Define the symbol SELF_PAGING_WORKS in lib/aos/threads.c.
- Undefine USE_STATIC_HEAP in morecore.c.

We should be testing the malloc() and free() implementations thoroughly. Also, we need to pay attention to concurrency, which means we need to figure out how the threading system works.

abertschi commented 4 years ago

Pending Features from #83: Introduce Guard pages for stack of threads and heap. Issue: #105

Liblor commented 4 years ago

Fixed by #104

Liblor / advanced_operating_systems_2020

Implement page fault handling #73