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-rw-r--r--klibc/include/arch/sparc/machine/frame.h138
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diff --git a/klibc/include/arch/sparc/machine/frame.h b/klibc/include/arch/sparc/machine/frame.h
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+/* $NetBSD: frame.h,v 1.4 2001/12/04 00:05:05 darrenr Exp $ */
+
+/*
+ * Copyright (c) 1992, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This software was developed by the Computer Systems Engineering group
+ * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
+ * contributed to Berkeley.
+ *
+ * All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Lawrence Berkeley Laboratory.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)frame.h 8.1 (Berkeley) 6/11/93
+ */
+
+#if defined(_KERNEL_OPT)
+#include "opt_sparc_arch.h"
+#endif
+
+/*
+ * Sparc stack frame format.
+ *
+ * Note that the contents of each stack frame may be held only in
+ * machine register windows. In order to get an accurate picture
+ * of the frame, you must first force the kernel to write any such
+ * windows to the stack.
+ */
+#ifndef _LOCORE
+#ifndef SUN4U
+struct frame {
+ int32_t fr_local[8]; /* space to save locals (%l0..%l7) */
+ int32_t fr_arg[6]; /* space to save arguments (%i0..%i5) */
+ struct frame *fr_fp; /* space to save frame pointer (%i6) */
+ int32_t fr_pc; /* space to save return pc (%i7) */
+ /*
+ * SunOS reserves another 8 words here; this is pointless
+ * but we do it for compatibility.
+ */
+ int32_t fr_xxx; /* `structure return pointer' (unused) */
+ int32_t fr_argd[6]; /* `arg dump area' (lunacy) */
+ int32_t fr_argx[1]; /* arg extension (args 7..n; variable size) */
+};
+#else
+struct frame32 {
+ int32_t fr_local[8]; /* space to save locals (%l0..%l7) */
+ int32_t fr_arg[6]; /* space to save arguments (%i0..%i5) */
+ u_int32_t fr_fp; /* space to save frame pointer (%i6) */
+ u_int32_t fr_pc; /* space to save return pc (%i7) */
+ /*
+ * SunOS reserves another 8 words here; this is pointless
+ * but we do it for compatibility.
+ */
+ int32_t fr_xxx; /* `structure return pointer' (unused) */
+ int32_t fr_argd[6]; /* `arg dump area' (lunacy) */
+ int32_t fr_argx[1]; /* arg extension (args 7..n; variable size) */
+};
+#endif
+#endif
+
+/*
+ * CCFSZ (C Compiler Frame SiZe) is the size of a stack frame required if
+ * a function is to call C code. It should be just 64, but Sun defined
+ * their frame with space to hold arguments 0 through 5 (plus some junk),
+ * and varargs routines (such as kprintf) demand this, and gcc uses this
+ * area at times anyway.
+ */
+#define CCFSZ 96
+
+/*
+ * Sparc v9 stack frame format.
+ *
+ * Note that the contents of each stack frame may be held only in
+ * machine register windows. In order to get an accurate picture
+ * of the frame, you must first force the kernel to write any such
+ * windows to the stack.
+ *
+ * V9 frames have an odd bias, so you can tall a v9 frame from
+ * a v8 frame by testing the stack pointer's lsb.
+ */
+#if !defined(_LOCORE) && !defined(_LIBC)
+struct frame64 {
+ int64_t fr_local[8]; /* space to save locals (%l0..%l7) */
+ int64_t fr_arg[6]; /* space to save arguments (%i0..%i5) */
+ u_int64_t fr_fp; /* space to save frame pointer (%i6) */
+ u_int64_t fr_pc; /* space to save return pc (%i7) */
+ /*
+ * SVR4 reserves a bunch of extra stuff.
+ */
+ int64_t fr_argd[6]; /* `register save area' (lunacy) */
+ int64_t fr_argx[0]; /* arg extension (args 7..n; variable size) */
+};
+
+#define v9next_frame(f) ((struct frame64*)(f->fr_fp+BIAS))
+#endif
+
+/*
+ * CC64FSZ (C Compiler 64-bit Frame SiZe) is the size of a stack frame used
+ * by the compiler in 64-bit mode. It is (16)*8; space for 8 ins, 8 outs.
+ */
+#define CC64FSZ 176
+
+/*
+ * v9 stacks all have a bias of 2047 added to the %sp and %fp, so you can easily
+ * detect it by testing the register for an odd value. Why 2K-1 I don't know.
+ */
+#define BIAS (2048-1)
+