a sensible source structure

The idea is that src/kernel/ is only allowed to interface with the
hardware using whatever's defined in src/arch/generic.h. I'll probably
write a small script for checking this later on.

This is a giant commit so I've probably fucked something up. It boots
fine on Bochs and QEMU, so at least there's that.

1 files changed, 14 insertions, 0 deletions

diff --git a/src/arch/generic.h b/src/arch/generic.h
new file mode 100644
index 0000000..7807316
--- /dev/null
+++ b/src/arch/generic.h
@@ -0,0 +1,14 @@
+#pragma once
+
+// i have no idea where else to put it
+#define PAGE_SIZE 4096
+
+// src/arch/i386/boot.s
+extern void stack_top;
+
+__attribute__((noreturn))
+void halt_cpu();
+
+// src/arch/i386/sysenter.s
+void sysexit(void (*fun)(), void *stack_top);
+void sysenter_setup();