Hi, In kernel 2.6.14, head.S for ARM, there is: __INIT .type stext, %function ENTRY(stext) ... ldr r13, __switch_data ... such that, __switch_data is a structure defined right below ENTRY(stext) and it has the address of the first function to be ran after MMU is enabled: .type __switch_data, %object __switch_data: .long __mmap_switched ... .type __mmap_switched, %function __mmap_switched: ... Eventually the MMU is enabled and right after, __mmap_switched is called. My questions are: (a) How come ENTRY(stext) is position independent, but __mmap_switched which is defined right below it is *not*. (b) How come first field of __switch_data stores the *virtual* address of __mmap_switched and it works just fine to jump to it after mmu is enabled? Maybe __mmap_switched is just mapped to its physical address? Finally, is it irrelevant to ask arch-specific questions like this in kernelnewbies? Thanks, Bahadir -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
