kmi/src/mem.c, branch masterACTIVE - Kernel with migrating threads as IPChttps://metanimi.dy.fi/cgit/kmi/atom?h=master2024-07-08T15:04:03Zfix LLVM2024-07-08T15:04:03ZKimplulkimi.h.kuparinen@gmail.com2024-07-08T14:43:59Zurn:sha1:e134202611a50b358c147c92bfb8a7f443030b8b
+ Anything extern is right out as LLVM doesn't produce correct code for
them. Maybe if I added some extra attributes but I'm skeptical.
Replaced with static variables and getters/setters.
+ Inline ASM is apparently a bit buggy, so use an assembly stub when jumping to init.
+ Minimize work done in main() to minimize chance of LLVM doing something silly.
Still not 100% certain that I shouldn't just write the main() as an assembly stub
in arch/riscv64 to be absolutely sure everything works as intended.
+ Make .kernel.start section SHF_ALLOC, otherwise lld complains about
pc-relative addressing
Probably some other stuff as well that I'm forgetting right now. But at least with
LLVM14 LTO seems to work, which is pretty cool?
core bringup + various warnings2024-07-06T20:37:11ZKimplulkimi.h.kuparinen@gmail.com2024-07-06T20:37:11Zurn:sha1:3fedbb6e1f849c5e0a4033d68201d60c2fc48121
+ dbg_fdt() is apparently broken, possibly due to UB or something, but
it causes some issues with optimizations enabled. Remove it
temporarily
formatting and documentation2024-07-05T17:14:46ZKimplulkimi.h.kuparinen@gmail.com2024-07-05T17:14:46Zurn:sha1:83a6fc687cab3ee87c6cae1324728521f9877ad0allow booting with Qemu's -kernel flag directly2024-07-05T16:38:11ZKimplulkimi.h.kuparinen@gmail.com2024-07-05T16:38:11Zurn:sha1:e09edb5d54e39bd9509a1dc450df5ab320759f97
+ Took some fairly significant changes, for one the kernel is no longer
relocated at the start of a boot, instead it sits wherever the user
decides the kernel should sit. Similarly, the initial kernel stack and
page table are stored within the binary, slightly bloating the size
but making it much safer to boot since there's really no chance of us
overwriting the fdt or initrd in memory.
rename common to src2024-05-24T15:13:43ZKimplulkimi.h.kuparinen@gmail.com2024-05-24T10:24:27Zurn:sha1:bc600ecc3bdf0f189861dfb840f70c2339a7a853
+ I keep starting to type src and wondering why autocomplete won't work,
I guess src is just uncounciously a better name