Annotation of sys/arch/sparc/include/frame.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: frame.h,v 1.3 2003/06/02 23:27:54 millert Exp $ */
! 2: /* $NetBSD: frame.h,v 1.2 1994/11/20 20:53:07 deraadt Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1992, 1993
! 6: * The Regents of the University of California. All rights reserved.
! 7: *
! 8: * This software was developed by the Computer Systems Engineering group
! 9: * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
! 10: * contributed to Berkeley.
! 11: *
! 12: * All advertising materials mentioning features or use of this software
! 13: * must display the following acknowledgement:
! 14: * This product includes software developed by the University of
! 15: * California, Lawrence Berkeley Laboratory.
! 16: *
! 17: * Redistribution and use in source and binary forms, with or without
! 18: * modification, are permitted provided that the following conditions
! 19: * are met:
! 20: * 1. Redistributions of source code must retain the above copyright
! 21: * notice, this list of conditions and the following disclaimer.
! 22: * 2. Redistributions in binary form must reproduce the above copyright
! 23: * notice, this list of conditions and the following disclaimer in the
! 24: * documentation and/or other materials provided with the distribution.
! 25: * 3. Neither the name of the University nor the names of its contributors
! 26: * may be used to endorse or promote products derived from this software
! 27: * without specific prior written permission.
! 28: *
! 29: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 30: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 31: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 32: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 33: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 34: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 35: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 36: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 37: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 38: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 39: * SUCH DAMAGE.
! 40: *
! 41: * @(#)frame.h 8.1 (Berkeley) 6/11/93
! 42: */
! 43:
! 44: /*
! 45: * Sparc stack frame format.
! 46: *
! 47: * Note that the contents of each stack frame may be held only in
! 48: * machine register windows. In order to get an accurate picture
! 49: * of the frame, you must first force the kernel to write any such
! 50: * windows to the stack.
! 51: */
! 52: struct frame {
! 53: int fr_local[8]; /* space to save locals (%l0..%l7) */
! 54: int fr_arg[6]; /* space to save arguments (%i0..%i5) */
! 55: struct frame *fr_fp; /* space to save frame pointer (%i6) */
! 56: int fr_pc; /* space to save return pc (%i7) */
! 57: /*
! 58: * SunOS reserves another 8 words here; this is pointless
! 59: * but we do it for compatibility.
! 60: */
! 61: int fr_xxx; /* `structure return pointer' (unused) */
! 62: int fr_argd[6]; /* `arg dump area' (lunacy) */
! 63: int fr_argx[1]; /* arg extension (args 7..n; variable size) */
! 64: };
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