1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1993 by Sun Microsystems, Inc. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 /* 29 * opcodes of the call instructions 30 */ 31 /* 32 * offset (in bytes) of the code from the entry address of a routine. 33 * (see asgnsamples for use and explanation.) 34 */ 35 #define OFFSET_OF_CODE 0 /* there is no mask on a SPARC */ 36 #define UNITS_TO_CODE (OFFSET_OF_CODE / sizeof(UNIT)) 37 /* 38 * address at which text begins N_TXTADDR is defined in a.out.h 39 */ 40 #ifdef _SYS_ELF_H 41 extern size_t textbegin; 42 #define TORIGIN (unsigned int) textbegin 43 #else 44 #define TORIGIN ((unsigned long) N_TXTADDR(xbuf)) 45 #endif 46 /* 47 * Macros for manipulating instruction fields. These use the 48 * structures defined below 49 */ 50 #define OP(x) (((union instruct *) (x))->f_1.op) 51 #define DISP30(x) (((union instruct *) (x))->f_1.disp30) 52 #define OP3(x) (((union instruct *) (x))->f_3c.op3) 53 #define RD(x) (((union instruct *) (x))->f_3c.rd) 54 #define IMMED(x) (((union instruct *) (x))->f_3c.i) 55 #define SIMM13(x) (((((union instruct *) (x))->f_3d.simm13) << 19) >> 19) 56 #define RS1(x) (((union instruct *) (x))->f_3c.rs1) 57 #define RS2(x) (((union instruct *) (x))->f_3c.rs2) 58 /* 59 * a few values for operand and register fields 60 */ 61 #define CALL 0x1 62 #define FMT3_0x10 0x2 63 #define JMPL 0x38 64 #define R_G0 0x0 65 #define R_O7 0xF 66 #define R_I7 0x1F 67 /* 68 * A macro for converting from instructp to the appropriate address in 69 * the program 70 */ 71 #define PC_VAL(x) ((x) - (unsigned long) textspace + TORIGIN) 72 /* 73 * structures for decoding instructions 74 */ 75 struct f_1 { 76 unsigned long op:2, 77 disp30:30; 78 }; 79 struct f_2a { 80 unsigned long op:2, 81 rd:5, 82 op2:3, 83 imm22:22; 84 }; 85 struct f_2b { 86 unsigned long op:2, 87 a:1, 88 cond:4, 89 op2:3, 90 disp22:22; 91 }; 92 struct f_3a { 93 unsigned long op:2, 94 ign1:1, 95 cond:4, 96 op3:6, 97 rs1:5, 98 i:1, 99 ign2:8, 100 rs2:5; 101 }; 102 struct f_3b { 103 unsigned long op:2, 104 ign1:1, 105 cond:4, 106 op3:6, 107 rs1:5, 108 i:1, 109 simm13:13; 110 }; 111 struct f_3c { 112 unsigned long op:2, 113 rd:5, 114 op3:6, 115 rs1:5, 116 i:1, 117 asi:8, 118 rs2:5; 119 }; 120 struct f_3d { 121 unsigned long op:2, 122 rd:5, 123 op3:6, 124 rs1:5, 125 i:1, 126 simm13:13; 127 }; 128 struct f_3e { 129 unsigned long op:2, 130 rd:5, 131 op3:6, 132 rs1:5, 133 opf:9, 134 rs2:5; 135 }; 136 137 union instruct { 138 struct f_1 f_1; 139 struct f_2a f_2a; 140 struct f_2b f_2b; 141 struct f_3a f_3a; 142 struct f_3b f_3b; 143 struct f_3c f_3c; 144 struct f_3d f_3d; 145 struct f_3e f_3e; 146 }; 147 148