Squash commits for public release

kernel/include/platform/arm64/tasking/context.h

@@ -0,0 +1,22 @@
+#ifndef _KERNEL_PLATFORM_ARM64_TASKING_CONTEXT_H
+#define _KERNEL_PLATFORM_ARM64_TASKING_CONTEXT_H
+
+#include <libkern/c_attrs.h>
+#include <libkern/types.h>
+
+typedef struct {
+    uint64_t x[22];
+    uint64_t lr;
+} PACKED context_t;
+
+static inline uintptr_t context_get_instruction_pointer(context_t* ctx)
+{
+    return ctx->lr;
+}
+
+static inline void context_set_instruction_pointer(context_t* ctx, uintptr_t ip)
+{
+    ctx->lr = ip;
+}
+
+#endif // _KERNEL_PLATFORM_ARM64_TASKING_CONTEXT_H