#ifdef CONFIG_MMU
/* * PAGE_OFFSET - the virtual address of the start of the kernel image * TASK_SIZE - the maximum size of a user space task. * TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area */ #define PAGE_OFFSET UL(CONFIG_PAGE_OFFSET)
(略) #else /* CONFIG_MMU */
(略) #ifndef PAGE_OFFSET
#define PAGE_OFFSET (PHYS_OFFSET)
#endif