| 2aa62f2b |
1 | /* $NetBSD: mcontext.h,v 1.5 2005/12/11 12:16:47 christos Exp $ */\r |
| 2 | \r |
| 3 | /*-\r |
| 4 | * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.\r |
| 5 | * All rights reserved.\r |
| 6 | *\r |
| 7 | * This code is derived from software contributed to The NetBSD Foundation\r |
| 8 | * by Klaus Klein and by Jason R. Thorpe of Wasabi Systems, Inc.\r |
| 9 | *\r |
| 10 | * Redistribution and use in source and binary forms, with or without\r |
| 11 | * modification, are permitted provided that the following conditions\r |
| 12 | * are met:\r |
| 13 | * 1. Redistributions of source code must retain the above copyright\r |
| 14 | * notice, this list of conditions and the following disclaimer.\r |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright\r |
| 16 | * notice, this list of conditions and the following disclaimer in the\r |
| 17 | * documentation and/or other materials provided with the distribution.\r |
| 18 | * 3. All advertising materials mentioning features or use of this software\r |
| 19 | * must display the following acknowledgement:\r |
| 20 | * This product includes software developed by the NetBSD\r |
| 21 | * Foundation, Inc. and its contributors.\r |
| 22 | * 4. Neither the name of The NetBSD Foundation nor the names of its\r |
| 23 | * contributors may be used to endorse or promote products derived\r |
| 24 | * from this software without specific prior written permission.\r |
| 25 | *\r |
| 26 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS\r |
| 27 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED\r |
| 28 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR\r |
| 29 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS\r |
| 30 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r |
| 31 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r |
| 32 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r |
| 33 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r |
| 34 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r |
| 35 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r |
| 36 | * POSSIBILITY OF SUCH DAMAGE.\r |
| 37 | */\r |
| 38 | \r |
| 39 | #ifndef _ARM_MCONTEXT_H_\r |
| 40 | #define _ARM_MCONTEXT_H_\r |
| 41 | \r |
| 42 | /*\r |
| 43 | * General register state\r |
| 44 | */\r |
| 45 | #define _NGREG 17\r |
| 46 | typedef unsigned int __greg_t;\r |
| 47 | typedef __greg_t __gregset_t[_NGREG];\r |
| 48 | \r |
| 49 | #define _REG_R0 0\r |
| 50 | #define _REG_R1 1\r |
| 51 | #define _REG_R2 2\r |
| 52 | #define _REG_R3 3\r |
| 53 | #define _REG_R4 4\r |
| 54 | #define _REG_R5 5\r |
| 55 | #define _REG_R6 6\r |
| 56 | #define _REG_R7 7\r |
| 57 | #define _REG_R8 8\r |
| 58 | #define _REG_R9 9\r |
| 59 | #define _REG_R10 10\r |
| 60 | #define _REG_R11 11\r |
| 61 | #define _REG_R12 12\r |
| 62 | #define _REG_R13 13\r |
| 63 | #define _REG_R14 14\r |
| 64 | #define _REG_R15 15\r |
| 65 | #define _REG_CPSR 16\r |
| 66 | /* Convenience synonyms */\r |
| 67 | #define _REG_FP _REG_R11\r |
| 68 | #define _REG_SP _REG_R13\r |
| 69 | #define _REG_LR _REG_R14\r |
| 70 | #define _REG_PC _REG_R15\r |
| 71 | \r |
| 72 | /*\r |
| 73 | * Floating point register state\r |
| 74 | */\r |
| 75 | /* Note: the storage layout of this structure must be identical to ARMFPE! */\r |
| 76 | typedef struct {\r |
| 77 | unsigned int __fp_fpsr;\r |
| 78 | struct {\r |
| 79 | unsigned int __fp_exponent;\r |
| 80 | unsigned int __fp_mantissa_hi;\r |
| 81 | unsigned int __fp_mantissa_lo;\r |
| 82 | } __fp_fr[8];\r |
| 83 | } __fpregset_t;\r |
| 84 | \r |
| 85 | typedef struct {\r |
| 86 | unsigned int __vfp_fpscr;\r |
| 87 | unsigned int __vfp_fstmx[33];\r |
| 88 | unsigned int __vfp_fpsid;\r |
| 89 | } __vfpregset_t;\r |
| 90 | \r |
| 91 | typedef struct {\r |
| 92 | __gregset_t __gregs;\r |
| 93 | union {\r |
| 94 | __fpregset_t __fpregs;\r |
| 95 | __vfpregset_t __vfpregs;\r |
| 96 | } __fpu;\r |
| 97 | } mcontext_t;\r |
| 98 | \r |
| 99 | /* Machine-dependent uc_flags */\r |
| 100 | #define _UC_ARM_VFP 0x00010000 /* FPU field is VFP */\r |
| 101 | \r |
| 102 | /* used by signal delivery to indicate status of signal stack */\r |
| 103 | #define _UC_SETSTACK 0x00020000\r |
| 104 | #define _UC_CLRSTACK 0x00040000\r |
| 105 | \r |
| 106 | #define _UC_MACHINE_PAD 3 /* Padding appended to ucontext_t */\r |
| 107 | \r |
| 108 | #define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_SP])\r |
| 109 | #define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_PC])\r |
| 110 | #define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_R0])\r |
| 111 | \r |
| 112 | #define _UC_MACHINE_SET_PC(uc, pc) _UC_MACHINE_PC(uc) = (pc)\r |
| 113 | \r |
| 114 | #endif /* !_ARM_MCONTEXT_H_ */\r |
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