switchframe 60 kern/arch/mips/thread/switchframe.c struct switchframe *sf; switchframe 68 kern/arch/mips/thread/switchframe.c sf = ((struct switchframe *) stacktop) - 1; switchframe 83 kern/include/thread.h struct switchframe *t_context; /* Saved register context (on stack) */ switchframe 35 kern/include/threadprivate.h struct switchframe; /* from <machine/switchframe.h> */