From d0e3551301d5a7ed6aeb38af5334eadec529c861 Mon Sep 17 00:00:00 2001
From: christos <christos@NetBSD.org>
Date: Mon, 13 Oct 2003 23:45:14 +0000
Subject: [PATCH] Add mcontext32_t and friends. This is WIP.

---
 sys/arch/sparc64/include/mcontext.h | 67 ++++++++++++++++++++++++++++-
 1 file changed, 66 insertions(+), 1 deletion(-)

diff --git a/sys/arch/sparc64/include/mcontext.h b/sys/arch/sparc64/include/mcontext.h
index 436ed289f256..f66e9ed718bb 100644
--- a/sys/arch/sparc64/include/mcontext.h
+++ b/sys/arch/sparc64/include/mcontext.h
@@ -1,3 +1,68 @@
-/*	$NetBSD: mcontext.h,v 1.2 2003/01/18 06:55:21 thorpej Exp $	*/
+/*	$NetBSD: mcontext.h,v 1.3 2003/10/13 23:45:14 christos Exp $	*/
+
+#ifndef _SPARC64_MCONTEXT_H_
+#define _SPARC64_MCONTEXT_H_
 
 #include <sparc/mcontext.h>
+
+#define _NGREG32	19	/* %psr, pc, npc, %g1-7, %o0-7 */
+typedef	int	__greg32_t;
+typedef	__greg32_t	__gregset32_t[_NGREG32];
+
+#define	_REG32_PSR	0
+#define	_REG32_PC	1
+#define	_REG32_nPC	2
+#define	_REG32_Y	3
+#define	_REG32_G1	4
+#define	_REG32_G2	5
+#define	_REG32_G3	6
+#define	_REG32_G4	7
+#define	_REG32_G5	8
+#define	_REG32_G6	9
+#define	_REG32_G7	10
+#define	_REG32_O0	11
+#define	_REG32_O1	12
+#define	_REG32_O2	13
+#define	_REG32_O3	14
+#define	_REG32_O4	15
+#define	_REG32_O5	16
+#define	_REG32_O6	17
+#define	_REG32_O7	18
+
+/* Layout of a register window. */
+typedef struct {
+	__greg32_t	__rw_local[8];	/* %l0-7 */
+	__greg32_t	__rw_in[8];	/* %i0-7 */
+} __rwindow32_t;
+
+/* Description of available register windows. */
+typedef struct {
+	int		__wbcnt;
+	__greg32_t *	__spbuf[_SPARC_MAXREGWINDOW];
+	__rwindow32_t	__wbuf[_SPARC_MAXREGWINDOW];
+} __gwindows32_t;
+
+/* FPU state description */
+typedef struct {
+	union {
+		unsigned int	__fpu_regs[32];
+		double		__fpu_dregs[16];
+	} __fpu_fr;				/* FPR contents */
+	struct __fq *	__fpu_q;		/* pointer to FPU insn queue */
+	unsigned int	__fpu_fsr;		/* %fsr */
+	unsigned char	__fpu_qcnt;		/* # entries in __fpu_q */
+	unsigned char	__fpu_q_entrysize; 	/* size of a __fpu_q entry */
+	unsigned char	__fpu_en;		/* this context valid? */
+} __fpregset32_t;
+
+typedef struct {
+	__gregset32_t	__gregs;	/* GPR state */
+	__gwindows32_t *__gwins;	/* may point to register windows */
+	__fpregset32_t	__fpregs;	/* FPU state, if any */
+	__xrs_t		__xrs;		/* may indicate extra reg state */
+} mcontext32_t;
+
+#define _UC_MACHINE32_PAD_32		/* Padding appended to ucontext_t */
+#define	_UC_MACHINE32_SP(uc)	((uc)->uc_mcontext.__gregs[_REG32_O6])
+
+#endif /* _SPARC64_MCONTEXT_H_ */