| Chris Dearman | 645d031 | 2014-02-05 18:51:43 -0800 | [diff] [blame] | 1 | /* $OpenBSD: signal.h,v 1.8 2006/01/09 18:18:37 millert Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 1992, 1993 |
| 5 | * The Regents of the University of California. All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to Berkeley by |
| 8 | * Ralph Campbell. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * 3. Neither the name of the University nor the names of its contributors |
| 19 | * may be used to endorse or promote products derived from this software |
| 20 | * without specific prior written permission. |
| 21 | * |
| 22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 32 | * SUCH DAMAGE. |
| 33 | * |
| 34 | * @(#)signal.h 8.1 (Berkeley) 6/10/93 |
| 35 | */ |
| 36 | |
| 37 | #ifndef _MIPS_SIGNAL_H_ |
| 38 | #define _MIPS_SIGNAL_H_ |
| 39 | |
| Duane Sand | 3a47863 | 2014-11-25 17:33:10 -0800 | [diff] [blame^] | 40 | /* On Mips32, jmpbuf begins with optional 4-byte filler so that |
| 41 | * all saved FP regs are aligned on 8-byte boundary, despite this whole |
| 42 | * struct being mis-declared to users as an array of (4-byte) longs. |
| 43 | * All the following offsets are then from the rounded-up base addr |
| 44 | */ |
| 45 | |
| 46 | /* Fields of same size on all MIPS abis: */ |
| 47 | #define SC_MAGIC (0*4) /* 4 bytes, identify jmpbuf */ |
| 48 | #define SC_MASK (1*4) /* 4 bytes, saved signal mask */ |
| 49 | #define SC_FPSR (2*4) /* 4 bytes, floating point control/status reg */ |
| 50 | /* filler2 (3*4) 4 bytes, pad to 8-byte boundary */ |
| 51 | |
| 52 | /* Registers that are 4-byte on mips32 o32, and 8-byte on mips64 n64 abi */ |
| 53 | #define SC_REGS_SAVED 12 /* ra,gp,sp,s0-s8 */ |
| 54 | #define SC_REGS (4*4) /* SC_REGS_SAVED*REGSZ bytes */ |
| 55 | |
| 56 | /* Floating pt registers are 8-bytes on all abis, |
| 57 | * but the number of saved fp regs varies for o32/n32 versus n64 abis: |
| 58 | */ |
| 59 | |
| 60 | #ifdef __LP64__ |
| 61 | #define SC_FPREGS_SAVED 8 /* all fp regs f24,f25,f26,f27,f28,f29,f30,f31 */ |
| 62 | #else |
| 63 | #define SC_FPREGS_SAVED 6 /* even fp regs f20,f22,f24,f26,f28,f30 */ |
| 64 | #endif |
| 65 | |
| 66 | #define SC_FPREGS (SC_REGS + SC_REGS_SAVED*REGSZ) /* SC_FPREGS_SAVED*REGSZ_FP bytes */ |
| 67 | |
| 68 | #define SC_BYTES (SC_FPREGS + SC_FPREGS_SAVED*REGSZ_FP) |
| 69 | #define SC_LONGS (SC_BYTES/REGSZ) |
| 70 | |
| 71 | #ifdef __LP64__ |
| 72 | /* SC_LONGS is 22, so _JBLEN should be 22 or larger */ |
| 73 | #else |
| 74 | /* SC_LONGS is 28, but must also allocate dynamic-roundup filler. |
| 75 | so _JBLEN should be 29 or larger */ |
| 76 | #endif |
| Chris Dearman | 645d031 | 2014-02-05 18:51:43 -0800 | [diff] [blame] | 77 | |
| 78 | #endif /* !_MIPS_SIGNAL_H_ */ |