sigcontext.h

这是leon3处理器的交叉编译链

/* Copyright (C) 2000 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#ifndef _SPARC_LEON_SIGCONTEXT_
#define _SPARC_LEON_SIGCONTEXT_

#define __SUNOS_MAXWIN   31

/* This is what SunOS does, so shall I. */
struct sigcontext {
	int sigc_onstack;      /* state to restore */
	int sigc_mask;         /* sigmask to restore */
	int sigc_sp;           /* stack pointer */
	int sigc_pc;           /* program counter */
	int sigc_npc;          /* next program counter */
	int sigc_psr;          /* for condition codes etc */
	int sigc_g1;           /* User uses these two registers */
	int sigc_o0;           /* within the trampoline code. */

	/* Now comes information regarding the users window set
	 * at the time of the signal.
	 */
	int sigc_oswins;       /* outstanding windows */

	/* stack ptrs for each regwin buf */
	char *sigc_spbuf[__SUNOS_MAXWIN];

	/* Windows to restore after signal */
	struct {
		unsigned long	locals[8];
		unsigned long	ins[8];
	} sigc_wbuf[__SUNOS_MAXWIN];
};

typedef struct {
	struct {
		unsigned long psr;
		unsigned long pc;
		unsigned long npc;
		unsigned long y;
		unsigned long u_regs[16]; /* globals and ins */
	}		si_regs;
	int		si_mask;
} __siginfo_t;

typedef struct {
	unsigned   long si_float_regs [32];
	unsigned   long si_fsr;
	unsigned   long si_fpqdepth;
	struct {
		unsigned long *insn_addr;
		unsigned long insn;
	} si_fpqueue [16];
} __siginfo_fpu_t;


#define UREG_G0        0
#define UREG_G1        1
#define UREG_G2        2
#define UREG_G3        3
#define UREG_G4        4
#define UREG_G5        5
#define UREG_G6        6
#define UREG_G7        7
#define UREG_I0        8
#define UREG_I1        9
#define UREG_I2        10
#define UREG_I3        11
#define UREG_I4        12
#define UREG_I5        13
#define UREG_I6        14
#define UREG_I7        15
#define UREG_WIM       UREG_G0
#define UREG_FADDR     UREG_G0
#define UREG_FP        UREG_I6
#define UREG_RETPC     UREG_I7

#endif /*_SPARC_LEON_SIGCONTEXT_*/