PROC_STACK
#define PROC_STACK(p) ((p)->p_md.md_tf->tf_regs[FRAME_SP])
#define PROC_STACK(p) ((p)->p_md.md_regs->tf_rsp)
#define PROC_STACK(p) ((p)->p_addr->u_pcb.pcb_tf->tf_usr_sp)
#define PROC_STACK(p) ((p)->p_addr->u_pcb.pcb_tf->tf_sp)
#define PROC_STACK(p) ((p)->p_md.md_regs->tf_sp)
#define PROC_STACK(p) ((p)->p_md.md_regs->tf_esp)
#define PROC_STACK(p) ((p)->p_md.md_tf->tf_sp)
#define PROC_STACK(p) ((p)->p_md.md_regs->sp)
#define PROC_STACK(p) (trapframe(p)->fixreg[1])
#define PROC_STACK(p) ((p)->p_md.md_regs->fixreg[1])
#define PROC_STACK(p) ((p)->p_addr->u_pcb.pcb_tf->tf_sp)
#define PROC_STACK(p) ((p)->p_md.md_regs->tf_r15)
#define PROC_STACK(p) ((p)->p_md.md_tf->tf_out[6] + (2048-1)) /* BIAS */