fix LLVM

+ 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?

1 files changed, 1 insertions, 1 deletions

diff --git a/src/regions.c b/src/regions.c
index b57b548..ca99971 100644
--- a/src/regions.c
+++ b/src/regions.c
@@ -259,7 +259,7 @@ static struct mem_region *__create_region(vm_t start, vm_t end,
  */
 static size_t po_align(size_t s)
 {
-	for (size_t o = __mm_max_order; o > 0; --o) {
+	for (size_t o = max_order(); o > 0; --o) {
 		if (s >= order_size(o))
 			return order_size(o);
 	}