diff --git a/include/asm-sparc64/svr4.h b/include/asm-sparc64/svr4.h
new file mode 100644
index 0000000..c96d5f1
--- /dev/null
+++ b/include/asm-sparc64/svr4.h
@@ -0,0 +1,120 @@
+/* Solaris/SPARC constants and definitions -- 
+ * (C) 1996 Miguel de Icaza
+ *
+ * This file is not meant to be included by user level applications
+ * but the solaris syscall emulator
+ */
+
+#ifndef _SPARC64_SVR4_H
+#define _SPARC64_SVR4_H
+
+/* Signals as used by svr4 */
+typedef struct {                /* signal set type */
+	uint sigbits[4];
+} svr4_sigset_t;
+
+/* Values for siginfo.code */
+#define SVR4_SINOINFO 32767
+/* Siginfo, sucker expects bunch of information on those parameters */
+typedef union {
+	char total_size [128];
+	struct {
+		int signo;
+		int code;
+		int error;
+		union {
+		} data; 
+	} siginfo;
+} svr4_siginfo_t;
+
+/* Context definition */
+
+/* Location of the user stored registers into a greg_t */
+enum {
+	SVR4_PSR, SVR4_PC, SVR4_NPC, SVR4_Y,
+	SVR4_G1,  SVR4_G2, SVR4_G3,  SVR4_G4,
+	SVR4_G5,  SVR4_G6, SVR4_G7,  SVR4_O0,
+	SVR4_O1,  SVR4_O2, SVR4_O3,  SVR4_O4,
+	SVR4_O5,  SVR4_O6, SVR4_O7
+};
+
+/* sizeof (regs) / sizeof (greg_t), defined in the ABI */
+#define SVR4_NREGS  19
+#define SVR4_MAXWIN 31
+
+typedef struct {
+	u32 rwin_lo[8];
+	u32 rwin_in[8];
+} svr4_rwindow_t;
+
+typedef struct {
+	int            count;
+	u32            winptr [SVR4_MAXWIN]; /* pointer to the windows */
+
+	svr4_rwindow_t win[SVR4_MAXWIN];      /* the windows */
+} svr4_gwindows_t;
+
+typedef int svr4_gregset_t[SVR4_NREGS];
+
+typedef struct {
+	u64   	 fpu_regs[32];
+	u32	 fp_q;
+	u32      fp_fsr;
+	u_char   fp_nqel;
+	u_char   fp_nqsize;
+	u_char   inuse;		/* if fpu is in use */
+} svr4_fregset_t;
+
+typedef struct {
+	u32    id;		/* if this holds "xrs" string => ptr is valid */
+	u32    ptr;
+} svr4_xrs_t;
+
+/* Machine dependent context */
+typedef struct {
+	svr4_gregset_t   greg;	/* registers 0..19 (see top) */
+	u32		 gwin;	/* may point to register windows */
+	svr4_fregset_t   freg;	/* floating point registers */
+	svr4_xrs_t       xrs;	/* mhm? */
+	int              pad[19];
+} svr4_mcontext_t;
+
+/* flags for stack_t.flags */
+enum svr4_stack_flags {
+	SVR4_SS_ONSTACK,
+	SVR4_SS_DISABLE,
+};
+
+/* signal stack execution place, unsupported */
+typedef struct svr4_stack_t {
+        u32  sp;
+        int  size;
+        int  flags;
+} svr4_stack_t;
+
+/* Context used by getcontext and setcontext */
+typedef struct svr4_ucontext_t {
+	u32		flags; /* context flags, indicate what is loaded */
+	u32		link;
+	svr4_sigset_t	sigmask;
+	svr4_stack_t	stack;
+	svr4_mcontext_t	mcontext;
+	int		pad[23];
+} svr4_ucontext_t;                          
+
+/* windows hold the windows as they were at signal time,
+ * ucontext->mcontext holds a pointer to them.
+ * addresses for uc and si are passed as parameters to svr4 signal
+ * handler
+ */
+
+/* This is the signal frame that is passed to the signal handler */
+typedef struct {
+	svr4_gwindows_t gw;	/* windows */
+	svr4_ucontext_t uc;	/* machine context */
+	svr4_siginfo_t  si;	/* siginfo */
+} svr4_signal_frame_t;
+
+#define SVR4_SF_ALIGNED (((sizeof (svr4_signal_frame_t) + 7) & (~7)))
+
+#endif /* include control */