1 /* 2 * Copyright (c) 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Ralph Campbell. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)ucontext.h 8.1 (Berkeley) 6/10/93 33 * JNPR: ucontext.h,v 1.2 2007/08/09 11:23:32 katta 34 * $FreeBSD$ 35 */ 36 37 #ifndef _MACHINE_UCONTEXT_H_ 38 #define _MACHINE_UCONTEXT_H_ 39 40 #ifndef _LOCORE 41 42 #if defined(_KERNEL) && !defined(KLD_MODULE) && !defined(_STANDALONE) 43 #include "opt_compat.h" 44 #endif 45 46 typedef struct __mcontext { 47 /* 48 * These fields must match the corresponding fields in struct 49 * sigcontext which follow 'sc_mask'. That way we can support 50 * struct sigcontext and ucontext_t at the same time. 51 */ 52 int mc_onstack; /* sigstack state to restore */ 53 __register_t mc_pc; /* pc at time of signal */ 54 __register_t mc_regs[32]; /* processor regs 0 to 31 */ 55 __register_t sr; /* status register */ 56 __register_t mullo, mulhi; /* mullo and mulhi registers... */ 57 int mc_fpused; /* fp has been used */ 58 f_register_t mc_fpregs[33]; /* fp regs 0 to 31 and csr */ 59 __register_t mc_fpc_eir; /* fp exception instruction reg */ 60 void *mc_tls; /* pointer to TLS area */ 61 int __spare__[8]; /* XXX reserved */ 62 } mcontext_t; 63 64 #if (defined(__mips_n32) || defined(__mips_n64)) && defined(COMPAT_FREEBSD32) 65 #include <compat/freebsd32/freebsd32_signal.h> 66 67 typedef struct __mcontext32 { 68 int mc_onstack; 69 int32_t mc_pc; 70 int32_t mc_regs[32]; 71 int32_t sr; 72 int32_t mullo, mulhi; 73 int mc_fpused; 74 int32_t mc_fpregs[33]; 75 int32_t mc_fpc_eir; 76 int32_t mc_tls; 77 int __spare__[8]; 78 } mcontext32_t; 79 80 typedef struct __ucontext32 { 81 sigset_t uc_sigmask; 82 mcontext32_t uc_mcontext; 83 uint32_t uc_link; 84 struct sigaltstack32 uc_stack; 85 uint32_t uc_flags; 86 uint32_t __spare__[4]; 87 } ucontext32_t; 88 #endif 89 #endif 90 91 #ifndef SZREG 92 #if defined(__mips_o32) 93 #define SZREG 4 94 #else 95 #define SZREG 8 96 #endif 97 #endif 98 99 /* offsets into mcontext_t */ 100 #define UCTX_REG(x) (4 + SZREG + (x)*SZREG) 101 102 #define UCR_ZERO UCTX_REG(0) 103 #define UCR_AT UCTX_REG(1) 104 #define UCR_V0 UCTX_REG(2) 105 #define UCR_V1 UCTX_REG(3) 106 #define UCR_A0 UCTX_REG(4) 107 #define UCR_A1 UCTX_REG(5) 108 #define UCR_A2 UCTX_REG(6) 109 #define UCR_A3 UCTX_REG(7) 110 #define UCR_T0 UCTX_REG(8) 111 #define UCR_T1 UCTX_REG(9) 112 #define UCR_T2 UCTX_REG(10) 113 #define UCR_T3 UCTX_REG(11) 114 #define UCR_T4 UCTX_REG(12) 115 #define UCR_T5 UCTX_REG(13) 116 #define UCR_T6 UCTX_REG(14) 117 #define UCR_T7 UCTX_REG(15) 118 #define UCR_S0 UCTX_REG(16) 119 #define UCR_S1 UCTX_REG(17) 120 #define UCR_S2 UCTX_REG(18) 121 #define UCR_S3 UCTX_REG(19) 122 #define UCR_S4 UCTX_REG(20) 123 #define UCR_S5 UCTX_REG(21) 124 #define UCR_S6 UCTX_REG(22) 125 #define UCR_S7 UCTX_REG(23) 126 #define UCR_T8 UCTX_REG(24) 127 #define UCR_T9 UCTX_REG(25) 128 #define UCR_K0 UCTX_REG(26) 129 #define UCR_K1 UCTX_REG(27) 130 #define UCR_GP UCTX_REG(28) 131 #define UCR_SP UCTX_REG(29) 132 #define UCR_S8 UCTX_REG(30) 133 #define UCR_RA UCTX_REG(31) 134 #define UCR_SR UCTX_REG(32) 135 #define UCR_MDLO UCTX_REG(33) 136 #define UCR_MDHI UCTX_REG(34) 137 138 #endif /* !_MACHINE_UCONTEXT_H_ */ 139