| /* $OpenBSD: signal.h,v 1.8 2006/01/09 18:18:37 millert Exp $ */ |
| |
| /* |
| * 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_ |
| |
| /* On Mips32, jmpbuf begins with optional 4-byte filler so that |
| * all saved FP regs are aligned on 8-byte boundary, despite this whole |
| * struct being mis-declared to users as an array of (4-byte) longs. |
| * All the following offsets are then from the rounded-up base addr |
| */ |
| |
| /* Fields of same size on all MIPS abis: */ |
| #define SC_MAGIC (0*4) /* 4 bytes, identify jmpbuf */ |
| #define SC_MASK (1*4) /* 4 bytes, saved signal mask */ |
| #define SC_FPSR (2*4) /* 4 bytes, floating point control/status reg */ |
| /* filler2 (3*4) 4 bytes, pad to 8-byte boundary */ |
| |
| /* Registers that are 4-byte on mips32 o32, and 8-byte on mips64 n64 abi */ |
| #define SC_REGS_SAVED 12 /* ra,gp,sp,s0-s8 */ |
| #define SC_REGS (4*4) /* SC_REGS_SAVED*REGSZ bytes */ |
| |
| /* Floating pt registers are 8-bytes on all abis, |
| * but the number of saved fp regs varies for o32/n32 versus n64 abis: |
| */ |
| |
| #ifdef __LP64__ |
| #define SC_FPREGS_SAVED 8 /* all fp regs f24,f25,f26,f27,f28,f29,f30,f31 */ |
| #else |
| #define SC_FPREGS_SAVED 6 /* even fp regs f20,f22,f24,f26,f28,f30 */ |
| #endif |
| |
| #define SC_FPREGS (SC_REGS + SC_REGS_SAVED*REGSZ) /* SC_FPREGS_SAVED*REGSZ_FP bytes */ |
| |
| #define SC_BYTES (SC_FPREGS + SC_FPREGS_SAVED*REGSZ_FP) |
| #define SC_LONGS (SC_BYTES/REGSZ) |
| |
| #ifdef __LP64__ |
| /* SC_LONGS is 22, so _JBLEN should be 22 or larger */ |
| #else |
| /* SC_LONGS is 28, but must also allocate dynamic-roundup filler. |
| so _JBLEN should be 29 or larger */ |
| #endif |
| |
| #endif /* !_MIPS_SIGNAL_H_ */ |