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+ Had some minor issues with a wraparound of size_t that effectively
meant that some regions were allocated twice. Also, booting should be
a bit more reliable now, turned out that the previous iteration of the
booting was just accidentally working due to the kernel being placed
'close enough' in RAM to where it was linked to. Fixed by allocating a
vmem of O1 that maps the kernel to a 2MiB boundary at boot, pretty
nifty.
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+ Apparently dbg_fdt() itself wasn't buggy, but for whatever reason GCC
produced an absolute load to the prefix string in __print_prefix()
which caused all the issues. Unclear why, seems like a compiler bug.
This commit is more of a workaround, I'd still like to investigate
this further.
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+ dbg_fdt() is apparently broken, possibly due to UB or something, but
it causes some issues with optimizations enabled. Remove it
temporarily
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+ The system is now a bit simpler and hopefully easier to understand, while also
extending the shared memory to be 1:N, where there is one owner who
may become a zombie while waiting for the N to die.
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+ Start out using big kernel lock, apparently seL4 thinks its good
enough. I might have a go at using a more fair lock, and possibly
moving to more fine-grained locks if I really feel the need to get
scalability up.
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+ 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.
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+ I keep starting to type src and wondering why autocomplete won't work,
I guess src is just uncounciously a better name
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