ref: 12e226ac6798412271020d42645f69138715c519
dir: /utils/libmach/setmach.c/
#include <lib9.h> #include <bio.h> #include "mach.h" /* table for selecting machine-dependent parameters */ typedef struct machtab Machtab; struct machtab { char *name; /* machine name */ short type; /* executable type */ short boottype; /* bootable type */ int asstype; /* disassembler code */ Mach *mach; /* machine description */ Machdata *machdata; /* machine functions */ }; extern Mach mmips, msparc, mi386, mamd64, marm, mmips2be, mmips2le, mpower, mpower64; extern Machdata mipsmach, sparcmach, i386mach, armmach, mipsmach2le, powermach; /* * machine selection table. machines with native disassemblers should * follow the plan 9 variant in the table; native modes are selectable * only by name. */ Machtab machines[] = { { "mips2LE", /*plan 9 mips2 little endian*/ FMIPS2LE, 0, AMIPS, &mmips2le, &mipsmach2le, }, { "mips", /*plan 9 mips*/ FMIPS, FMIPSB, AMIPS, &mmips, &mipsmach, }, { "mips2", /*plan 9 mips2*/ FMIPS2BE, FMIPSB, AMIPS, &mmips2be, &mipsmach, }, /* shares debuggers with native mips */ { "mipsco", /*native mips - must follow plan 9*/ FMIPS, FMIPSB, AMIPSCO, &mmips, &mipsmach, }, { "sparc", /*plan 9 sparc */ FSPARC, FSPARCB, ASPARC, &msparc, &sparcmach, }, { "sunsparc", /*native sparc - must follow plan 9*/ FSPARC, FSPARCB, ASUNSPARC, &msparc, &sparcmach, }, { "386", /*plan 9 386*/ FI386, FI386B, AI386, &mi386, &i386mach, }, { "86", /*8086 - a peach of a machine*/ FI386, FI386B, AI8086, &mi386, &i386mach, }, { "amd64", /*amd64*/ FAMD64, FAMD64B, AAMD64, &mamd64, &i386mach, }, { "arm", /*ARM*/ FARM, FARMB, AARM, &marm, &armmach, }, { "power", /*PowerPC*/ FPOWER, FPOWERB, APOWER, &mpower, &powermach, }, { "power64", /*PowerPC*/ FPOWER64, FPOWER64B, APOWER64, &mpower64, &powermach, }, { 0 }, /*the terminator*/ }; /* * select a machine by executable file type */ void machbytype(int type) { Machtab *mp; for (mp = machines; mp->name; mp++){ if (mp->type == type || mp->boottype == type) { asstype = mp->asstype; machdata = mp->machdata; break; } } } /* * select a machine by name */ int machbyname(char *name) { Machtab *mp; if (!name) { asstype = AMIPS; machdata = &mipsmach; mach = &mmips; return 1; } for (mp = machines; mp->name; mp++){ if (strcmp(mp->name, name) == 0) { asstype = mp->asstype; machdata = mp->machdata; mach = mp->mach; return 1; } } return 0; }