wkern.git, branch mastera UNIX-like RISC-V kernel written from scratch
https://git.itsnat.dev/wkern.git/atom?h=master2026-07-30T00:11:29Zcreate basic MMIO handler for console2026-07-30T00:11:29ZNathan Leeme@nwlee.tech2026-07-30T00:11:29Zurn:sha1:1329d1db52ede274d63b56a7aa37dd25c833ec67separate module ld from objcopy2026-07-27T19:51:10ZNathan Leeme@nwlee.tech2026-07-27T19:51:10Zurn:sha1:9d970286fc93c03acbe465faf97a9bd559ab6f1bremove pci subsystem and replace it with console controllers2026-07-27T01:29:25ZNathan Leeme@nwlee.tech2026-07-27T01:29:25Zurn:sha1:7458694ea666ab108105dc24fe4ca197d634a3a8feat: update ELF parser2026-07-27T01:26:58ZNathan Leeme@nwlee.tech2026-07-27T01:26:58Zurn:sha1:dcf065f3438b53b9bfd9628810040f94619d8c18
- added more header validity checks
- create section name retrieval
fix: km_init fails to find memory2026-07-26T21:11:47ZNathan Leeme@nwlee.tech2026-07-26T21:11:47Zurn:sha1:e98a69fd70533aa9f9b2bd1367e1ec158579d4c0
This resolves an issue where km_init would fail to find the memory
property if it was not the first node that it looked at.
create ringbuffer for logging2026-07-26T20:26:49ZNathan Leeme@nwlee.tech2026-07-26T20:25:22Zurn:sha1:5c12f756189373fb25220fe8824d4df785e61742update Makefile2026-07-19T23:23:59ZNathan Leeme@nwlee.tech2026-07-19T23:23:59Zurn:sha1:9137408a4989fcafca6527a2e17e5a7348d00dde
- removed echo
- changed LD to actually use ld.lld
create elf.h2026-07-12T17:45:05ZNathan Leeme@nwlee.tech2026-07-12T17:42:31Zurn:sha1:24fdac29fb8a1c7766869b05e7a17b2c4cc98ce1
The ELF parser needs more work, there are more structs to be added.
memcpy was refactored from mem.h into common.h
endianness conversions were standardized in types.h
create kzalloc2026-06-25T15:08:12ZNathanme@nwlee.tech2026-06-25T15:08:12Zurn:sha1:5d9942d70ca61af4d12cd2a531a190c98052c9c4fix memory allocator logic2026-06-25T15:03:22ZNathanme@nwlee.tech2026-06-25T15:03:22Zurn:sha1:27a91e1d9d6d312c519429965b201dd294065085
- fixed an edge case in `kmalloc` where the broken block from a split
may be too small to accomodate another `struct page`. this was fixed
such that if we do not have enough room to allocate another `struct
page` then `kmalloc` simply returns the entire page.
- fixed empty and single-element `free_list` edge cases in `kfree`