Move sys/test to Yellowstone init process.

sys/yellowstone/CMakeLists.txt

@@ -0,0 +1,12 @@
+add_executable(yellowstone
+  yellowstone.cpp)
+
+target_link_libraries(yellowstone
+  cxx
+  mammoth_lib
+  )
+
+set_target_properties(yellowstone PROPERTIES
+  COMPILE_FLAGS "${CMAKE_CXX_FLAGS} ${BASE_COMPILE_FLAGS}"
+  LINK_FLAGS "${CMAKE_EXE_LINK_FLAGS} ${BASE_LINK_FLAGS}"
+  )

sys/yellowstone/yellowstone.cpp

@@ -0,0 +1,13 @@
+#include <mammoth/debug.h>
+#include <mammoth/process.h>
+#include <zcall.h>
+
+uint64_t main() {
+  dbgln("Yellowstone Initializing.");
+  uint64_t vaddr;
+  check(ZAddressSpaceMap(Z_INIT_VMAS_SELF, 0, Z_INIT_BOOT_VMMO, &vaddr));
+  check(SpawnProcessFromElfRegion(vaddr));
+
+  dbgln("Yellowstone Finished Successfully.");
+  return 0;
+}