taglinefilesource code
usp90arch/alpha/boot/main.cpcb_va->usp = 0;
usp110arch/alpha/kernel/process.cvoid copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
usp131arch/alpha/kernel/process.cp->tss.usp = usp;
usp646arch/alpha/kernel/ptrace.ctmp=child->tss.usp;
usp105arch/sparc/kernel/process.cp->tss.usp = sp;    /* both processes have the same user stack */
usp41include/asm-alpha/hwrpb.hunsigned long usp;
usp31include/asm-alpha/processor.hunsigned long usp;
usp57include/asm-sparc/processor.hunsigned long usp;            /* user's sp, throw reg windows here */
usp167kernel/fork.cint do_fork(unsigned long clone_flags, unsigned long usp, struct pt_regs *regs)
usp215kernel/fork.ccopy_thread(nr, clone_flags, usp, p, regs);