1 #include <u.h> 2 #include <libc.h> 3 #include <bio.h> 4 #include <mach.h> 5 /* table for selecting machine-dependent parameters */ 6 7 typedef struct machtab Machtab; 8 9 struct machtab 10 { 11 char *name; /* machine name */ 12 short type; /* executable type */ 13 short boottype; /* bootable type */ 14 int asstype; /* disassembler code */ 15 Mach *mach; /* machine description */ 16 Machdata *machdata; /* machine functions */ 17 }; 18 19 extern Mach mmips, msparc, m68020, mi386, 20 marm, mmips2be, mmips2le, mpower, malpha; 21 extern Machdata mipsmach, sparcmach, m68020mach, i386mach, 22 armmach, mipsmach2le, powermach, alphamach; 23 24 /* 25 * machine selection table. machines with native disassemblers should 26 * follow the plan 9 variant in the table; native modes are selectable 27 * only by name. 28 */ 29 Machtab machines[] = 30 { 31 { "68020", /*68020*/ 32 F68020, 33 F68020B, 34 A68020, 35 &m68020, 36 &m68020mach, }, 37 { "68020", /*Next 68040 bootable*/ 38 F68020, 39 FNEXTB, 40 A68020, 41 &m68020, 42 &m68020mach, }, 43 { "mips2LE", /*plan 9 mips2 little endian*/ 44 FMIPS2LE, 45 0, 46 AMIPS, 47 &mmips2le, 48 &mipsmach2le, }, 49 { "mips", /*plan 9 mips*/ 50 FMIPS, 51 FMIPSB, 52 AMIPS, 53 &mmips, 54 &mipsmach, }, 55 { "mips2", /*plan 9 mips2*/ 56 FMIPS2BE, 57 FMIPSB, 58 AMIPS, 59 &mmips2be, 60 &mipsmach, }, /* shares debuggers with native mips */ 61 { "mipsco", /*native mips - must follow plan 9*/ 62 FMIPS, 63 FMIPSB, 64 AMIPSCO, 65 &mmips, 66 &mipsmach, }, 67 { "sparc", /*plan 9 sparc */ 68 FSPARC, 69 FSPARCB, 70 ASPARC, 71 &msparc, 72 &sparcmach, }, 73 { "sunsparc", /*native sparc - must follow plan 9*/ 74 FSPARC, 75 FSPARCB, 76 ASUNSPARC, 77 &msparc, 78 &sparcmach, }, 79 { "386", /*plan 9 386*/ 80 FI386, 81 FI386B, 82 AI386, 83 &mi386, 84 &i386mach, }, 85 { "86", /*8086 - a peach of a machine*/ 86 FI386, 87 FI386B, 88 AI8086, 89 &mi386, 90 &i386mach, }, 91 { "arm", /*ARM*/ 92 FARM, 93 FNONE, 94 AARM, 95 &marm, 96 &armmach, }, 97 { "power", /*PowerPC*/ 98 FPOWER, 99 FPOWERB, 100 APOWER, 101 &mpower, 102 &powermach, }, 103 { "alpha", /*Alpha*/ 104 FALPHA, 105 FALPHAB, 106 AALPHA, 107 &malpha, 108 &alphamach, }, 109 { 0 }, /*the terminator*/ 110 }; 111 112 /* 113 * select a machine by executable file type 114 */ 115 void 116 machbytype(int type) 117 { 118 Machtab *mp; 119 120 for (mp = machines; mp->name; mp++){ 121 if (mp->type == type || mp->boottype == type) { 122 asstype = mp->asstype; 123 machdata = mp->machdata; 124 break; 125 } 126 } 127 } 128 /* 129 * select a machine by name 130 */ 131 int 132 machbyname(char *name) 133 { 134 Machtab *mp; 135 136 if (!name) { 137 asstype = AMIPS; 138 machdata = &mipsmach; 139 mach = &mmips; 140 return 1; 141 } 142 for (mp = machines; mp->name; mp++){ 143 if (strcmp(mp->name, name) == 0) { 144 asstype = mp->asstype; 145 machdata = mp->machdata; 146 mach = mp->mach; 147 return 1; 148 } 149 } 150 return 0; 151 } 152