/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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. 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.
*
* @(#)signal.h 8.1 (Berkeley) 6/10/93
*/
#ifndef _MIPS_SIGNAL_H_
#define _MIPS_SIGNAL_H_
#include <sys/featuretest.h>
#include <machine/cdefs.h> /* for API selection */
/*
* Information pushed on stack when a signal is delivered.
* This is used by the kernel to restore state following
* execution of the signal handler. It is also made available
* to the handler to allow it to restore state properly if
* a non-standard exit is performed.
*
* sizeof(sigcontext) = 45 * sizeof(int) + 35 * sizeof(mips_reg_t)
*/
#if defined(_KERNEL) && (defined(COMPAT_13) || defined(COMPAT_ULTRIX))
struct sigcontext13 {
int sc_onstack; /* sigstack state to restore */
int sc_mask; /* signal mask to restore (old style) */
int sc_pc; /* pc at time of signal */
int sc_regs[32]; /* processor regs 0 to 31 */
int mullo, mulhi; /* mullo and mulhi registers... */
int sc_fpused; /* fp has been used */
int sc_fpregs[33]; /* fp regs 0 to 31 and csr */
int sc_fpc_eir; /* floating point exception instruction reg */
int sc_xxx[8]; /* XXX reserved */
};
#endif /* _KERNEL && COMPAT_13 */
#if defined(_NETBSD_SOURCE)
#include <sys/sigtypes.h>
/*
* Only need an O32 version.
*/
#define _SIGCONTEXT_DEFINE(_name, _reg_t, _fp_t) \
struct sigcontext { \
int sc_onstack; /* sigstack state to restore */ \
int __sc_mask13; /* signal mask to restore (old style) */ \
_reg_t sc_pc; /* pc at time of signal */ \
_reg_t sc_regs[32]; /* processor regs 0 to 31 */ \
_reg_t mullo, mulhi; /* mullo and mulhi registers... */ \
int sc_fpused; /* fp has been used */ \
_fp_t sc_fpregs[33]; /* fp regs 0 to 31 and csr */ \
int sc_fpc_eir; /* floating point exception instruction reg */ \
int sc_xxx[8]; /* XXX reserved */ \
sigset_t sc_mask; /* signal mask to restore (new style) */ \
}
/*
* The only binaries that used sigcontext used the O32 ABI. The kernel
* needs this for 32-bit compatibility, and O32 ABI user-space needs this
* natively.
*/
#if defined(_KERNEL)
_SIGCONTEXT_DEFINE(sigcontext, int, int);
#elif defined(__mips_o32) || defined(_LIBC)
_SIGCONTEXT_DEFINE(sigcontext, __register_t, __fpregister_t);
#endif
