// Stolen shamelessly from cctools. #include #include #include #include #ifndef CPU_TYPE_ARM #define CPU_TYPE_ARM ((cpu_type_t) 12) #define CPU_SUBTYPE_ARM_V4T ((cpu_subtype_t) 5) #define CPU_SUBTYPE_ARM_V6 ((cpu_subtype_t) 6) #endif #ifndef CPU_SUBTYPE_ARM_V5TEJ #define CPU_SUBTYPE_ARM_V5TEJ ((cpu_subtype_t) 7) #endif #ifndef CPU_SUBTYPE_ARM_V7 #define CPU_SUBTYPE_ARM_V7 ((cpu_subtype_t) 9) #endif #ifndef CPU_TYPE_VEO #define CPU_TYPE_VEO ((cpu_type_t) 255) #define CPU_SUBTYPE_VEO_1 ((cpu_subtype_t) 1) #define CPU_SUBTYPE_VEO_2 ((cpu_subtype_t) 2) #define CPU_SUBTYPE_VEO_ALL CPU_SUBTYPE_VEO_2 #endif /* The array of all currently know architecture flags (terminated with an entry * with all zeros). Pointer to this returned with NXGetAllArchInfos(). */ static const NXArchInfo ArchInfoTable[] = { /* architecture families */ {"hppa", CPU_TYPE_HPPA, CPU_SUBTYPE_HPPA_ALL, NX_BigEndian, "HP-PA"}, {"i386", CPU_TYPE_I386, CPU_SUBTYPE_I386_ALL, NX_LittleEndian, "Intel 80x86"}, {"i860", CPU_TYPE_I860, CPU_SUBTYPE_I860_ALL, NX_BigEndian, "Intel 860"}, {"m68k", CPU_TYPE_MC680x0, CPU_SUBTYPE_MC680x0_ALL, NX_BigEndian, "Motorola 68K"}, {"m88k", CPU_TYPE_MC88000, CPU_SUBTYPE_MC88000_ALL, NX_BigEndian, "Motorola 88K"}, {"ppc", CPU_TYPE_POWERPC, CPU_SUBTYPE_POWERPC_ALL, NX_BigEndian, "PowerPC"}, {"ppc64", CPU_TYPE_POWERPC64, CPU_SUBTYPE_POWERPC_ALL, NX_BigEndian, "PowerPC 64-bit"}, {"sparc", CPU_TYPE_SPARC, CPU_SUBTYPE_SPARC_ALL, NX_BigEndian, "SPARC"}, {"arm", CPU_TYPE_ARM, CPU_SUBTYPE_ARM_V4T, NX_LittleEndian, "arm v4t"}, {"armv4t", CPU_TYPE_ARM, CPU_SUBTYPE_ARM_V4T, NX_LittleEndian, "arm v4t"}, {"armv5", CPU_TYPE_ARM, CPU_SUBTYPE_ARM_V5TEJ, NX_LittleEndian, "arm v5"}, {"armv6", CPU_TYPE_ARM, CPU_SUBTYPE_ARM_V6, NX_LittleEndian, "arm v6"}, {"armv7", CPU_TYPE_ARM, CPU_SUBTYPE_ARM_V7, NX_LittleEndian, "arm v7"}, {"any", CPU_TYPE_ANY, CPU_SUBTYPE_MULTIPLE, NX_UnknownByteOrder, "Architecture Independent"}, {"veo", CPU_TYPE_VEO, CPU_SUBTYPE_VEO_ALL, NX_BigEndian, "veo"}, /* specific architecture implementations */ {"hppa7100LC", CPU_TYPE_HPPA, CPU_SUBTYPE_HPPA_7100LC, NX_BigEndian, "HP-PA 7100LC"}, {"m68030", CPU_TYPE_MC680x0, CPU_SUBTYPE_MC68030_ONLY, NX_BigEndian, "Motorola 68030"}, {"m68040", CPU_TYPE_MC680x0, CPU_SUBTYPE_MC68040, NX_BigEndian, "Motorola 68040"}, {"i486", CPU_TYPE_I386, CPU_SUBTYPE_486, NX_LittleEndian, "Intel 80486"}, {"i486SX", CPU_TYPE_I386, CPU_SUBTYPE_486SX, NX_LittleEndian, "Intel 80486SX"}, {"pentium",CPU_TYPE_I386, CPU_SUBTYPE_PENT, NX_LittleEndian, "Intel Pentium"}, /* same as 586 */ {"i586", CPU_TYPE_I386, CPU_SUBTYPE_586, NX_LittleEndian, "Intel 80586"}, {"pentpro", CPU_TYPE_I386, CPU_SUBTYPE_PENTPRO, NX_LittleEndian, "Intel Pentium Pro"}, /* same as 686 */ {"i686", CPU_TYPE_I386, CPU_SUBTYPE_PENTPRO, NX_LittleEndian, "Intel Pentium Pro"}, {"pentIIm3", CPU_TYPE_I386, CPU_SUBTYPE_PENTII_M3, NX_LittleEndian, "Intel Pentium II Model 3" }, {"pentIIm5", CPU_TYPE_I386, CPU_SUBTYPE_PENTII_M5, NX_LittleEndian, "Intel Pentium II Model 5" }, {"pentium4", CPU_TYPE_I386, CPU_SUBTYPE_PENTIUM_4, NX_LittleEndian, "Intel Pentium 4" }, {"ppc601", CPU_TYPE_POWERPC, CPU_SUBTYPE_POWERPC_601, NX_BigEndian, "PowerPC 601" }, {"ppc603", CPU_TYPE_POWERPC, CPU_SUBTYPE_POWERPC_603, NX_BigEndian, "PowerPC 603" }, {"ppc603e",CPU_TYPE_POWERPC, CPU_SUBTYPE_POWERPC_603e, NX_BigEndian, "PowerPC 603e" }, {"ppc603ev",CPU_TYPE_POWERPC,CPU_SUBTYPE_POWERPC_603ev,NX_BigEndian, "PowerPC 603ev" }, {"ppc604", CPU_TYPE_POWERPC, CPU_SUBTYPE_POWERPC_604, NX_BigEndian, "PowerPC 604" }, {"ppc604e",CPU_TYPE_POWERPC, CPU_SUBTYPE_POWERPC_604e, NX_BigEndian, "PowerPC 604e" }, {"ppc750", CPU_TYPE_POWERPC, CPU_SUBTYPE_POWERPC_750, NX_BigEndian, "PowerPC 750" }, {"ppc7400",CPU_TYPE_POWERPC, CPU_SUBTYPE_POWERPC_7400, NX_BigEndian, "PowerPC 7400" }, {"ppc7450",CPU_TYPE_POWERPC, CPU_SUBTYPE_POWERPC_7450, NX_BigEndian, "PowerPC 7450" }, {"ppc970", CPU_TYPE_POWERPC, CPU_SUBTYPE_POWERPC_970, NX_BigEndian, "PowerPC 970" }, {"ppc970-64", CPU_TYPE_POWERPC64, CPU_SUBTYPE_POWERPC_970, NX_BigEndian, "PowerPC 970 64-bit"}, {"little", CPU_TYPE_ANY, CPU_SUBTYPE_LITTLE_ENDIAN, NX_LittleEndian, "Little Endian"}, {"big", CPU_TYPE_ANY, CPU_SUBTYPE_BIG_ENDIAN, NX_BigEndian, "Big Endian"}, {"veo1",CPU_TYPE_VEO, CPU_SUBTYPE_VEO_1, NX_BigEndian, "veo 1" }, {"veo2",CPU_TYPE_VEO, CPU_SUBTYPE_VEO_2, NX_BigEndian, "veo 2" }, {NULL, 0, 0, 0, NULL} }; /* * NXGetArchInfoFromName() is passed an architecture name (like "m68k") * and returns the matching NXArchInfo struct, or NULL if none is found. */ const NXArchInfo * NXGetArchInfoFromName( const char *name) { const NXArchInfo *ai; for(ai = ArchInfoTable; ai->name != NULL; ai++) if(strcmp(ai->name, name) == 0) return(ai); return(NULL); } /* * NXFindBestFatArch() is passed a cputype and cpusubtype and a set of * fat_arch structs and selects the best one that matches (if any) and returns * a pointer to that fat_arch struct (or NULL). The fat_arch structs must be * in the host byte order and correct such that the fat_archs really points to * enough memory for nfat_arch structs. It is possible that this routine could * fail if new cputypes or cpusubtypes are added and an old version of this * routine is used. But if there is an exact match between the cputype and * cpusubtype and one of the fat_arch structs this routine will always succeed. */ struct fat_arch * NXFindBestFatArch( cpu_type_t cputype, cpu_subtype_t cpusubtype, struct fat_arch *fat_archs, uint32_t nfat_archs) { unsigned long i; long lowest_family, lowest_model, lowest_index; /* * Look for the first exact match. */ for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype == cputype && fat_archs[i].cpusubtype == cpusubtype) return(fat_archs + i); } /* * An exact match was not found so find the next best match which is * cputype dependent. */ switch(cputype){ case CPU_TYPE_I386: switch(cpusubtype){ default: /* * Intel cpusubtypes after the pentium (same as 586) are handled * such that they require an exact match or they can use the * pentium. If that is not found call into the loop for the * earilier subtypes. */ for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_PENT) return(fat_archs + i); } case CPU_SUBTYPE_PENT: case CPU_SUBTYPE_486SX: /* * Since an exact match as not found look for the i486 else * break into the loop to look for the i386_ALL. */ for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_486) return(fat_archs + i); } break; case CPU_SUBTYPE_I386_ALL: /* case CPU_SUBTYPE_I386: same as above */ case CPU_SUBTYPE_486: break; } for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_I386_ALL) return(fat_archs + i); } /* * A match failed, promote as little as possible. */ for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_486) return(fat_archs + i); } for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_486SX) return(fat_archs + i); } for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_586) return(fat_archs + i); } /* * Now look for the lowest family and in that the lowest model. */ lowest_family = CPU_SUBTYPE_INTEL_FAMILY_MAX + 1; for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(CPU_SUBTYPE_INTEL_FAMILY(fat_archs[i].cpusubtype) < lowest_family) lowest_family = CPU_SUBTYPE_INTEL_FAMILY( fat_archs[i].cpusubtype); } /* if no intel cputypes found return NULL */ if(lowest_family == CPU_SUBTYPE_INTEL_FAMILY_MAX + 1) return(NULL); lowest_model = LONG_MAX; lowest_index = -1; for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(CPU_SUBTYPE_INTEL_FAMILY(fat_archs[i].cpusubtype) == lowest_family){ if(CPU_SUBTYPE_INTEL_MODEL(fat_archs[i].cpusubtype) < lowest_model){ lowest_model = CPU_SUBTYPE_INTEL_MODEL( fat_archs[i].cpusubtype); lowest_index = i; } } } return(fat_archs + lowest_index); case CPU_TYPE_MC680x0: for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_MC680x0_ALL) return(fat_archs + i); } /* * Try to promote if starting from CPU_SUBTYPE_MC680x0_ALL and * favor the CPU_SUBTYPE_MC68040 over the CPU_SUBTYPE_MC68030_ONLY. */ if(cpusubtype == CPU_SUBTYPE_MC680x0_ALL){ for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_MC68040) return(fat_archs + i); } for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_MC68030_ONLY) return(fat_archs + i); } } break; case CPU_TYPE_POWERPC: /* * An exact match as not found. So for all the PowerPC subtypes * pick the subtype from the following order starting from a subtype * that will work (contains 64-bit instructions or altivec if * needed): * 970, 7450, 7400, 750, 604e, 604, 603ev, 603e, 603, ALL * Note the 601 is NOT in the list above. It is only picked via * an exact match. For an unknown subtype pick only the ALL type if * it exists. */ switch(cpusubtype){ case CPU_SUBTYPE_POWERPC_ALL: /* * The CPU_SUBTYPE_POWERPC_ALL is only used by the development * environment tools when building a generic ALL type binary. * In the case of a non-exact match we pick the most current * processor. */ case CPU_SUBTYPE_POWERPC_970: for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_POWERPC_970) return(fat_archs + i); } case CPU_SUBTYPE_POWERPC_7450: case CPU_SUBTYPE_POWERPC_7400: for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_POWERPC_7450) return(fat_archs + i); } for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_POWERPC_7400) return(fat_archs + i); } case CPU_SUBTYPE_POWERPC_750: case CPU_SUBTYPE_POWERPC_604e: case CPU_SUBTYPE_POWERPC_604: case CPU_SUBTYPE_POWERPC_603ev: case CPU_SUBTYPE_POWERPC_603e: case CPU_SUBTYPE_POWERPC_603: for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_POWERPC_750) return(fat_archs + i); } for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_POWERPC_604e) return(fat_archs + i); } for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_POWERPC_604) return(fat_archs + i); } for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_POWERPC_603ev) return(fat_archs + i); } for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_POWERPC_603e) return(fat_archs + i); } for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_POWERPC_603) return(fat_archs + i); } default: for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_POWERPC_ALL) return(fat_archs + i); } } break; case CPU_TYPE_POWERPC64: /* * An exact match as not found. So for all the PowerPC64 subtypes * pick the subtype from the following order starting from a subtype * that will work (contains 64-bit instructions or altivec if * needed): * 970 (currently only the one 64-bit subtype) * For an unknown subtype pick only the ALL type if it exists. */ switch(cpusubtype){ case CPU_SUBTYPE_POWERPC_ALL: /* * The CPU_SUBTYPE_POWERPC_ALL is only used by the development * environment tools when building a generic ALL type binary. * In the case of a non-exact match we pick the most current * processor. */ case CPU_SUBTYPE_POWERPC_970: for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_POWERPC_970) return(fat_archs + i); } default: for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_POWERPC_ALL) return(fat_archs + i); } } break; case CPU_TYPE_MC88000: for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_MC88000_ALL) return(fat_archs + i); } break; case CPU_TYPE_I860: for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_I860_ALL) return(fat_archs + i); } break; case CPU_TYPE_HPPA: for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_HPPA_ALL) return(fat_archs + i); } break; case CPU_TYPE_SPARC: for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype == CPU_SUBTYPE_SPARC_ALL) return(fat_archs + i); } break; case CPU_TYPE_ARM: { /* * ARM is straightforward, since each architecture is backward * compatible with previous architectures. So, we just take the * highest that is less than our target. */ int fat_match_found = 0; unsigned long best_fat_arch = 0; for(i = 0; i < nfat_archs; i++){ if(fat_archs[i].cputype != cputype) continue; if(fat_archs[i].cpusubtype > cpusubtype) continue; if(!fat_match_found){ fat_match_found = 1; best_fat_arch = i; continue; } if(fat_archs[i].cpusubtype > fat_archs[best_fat_arch].cpusubtype) best_fat_arch = i; } if(fat_match_found) return fat_archs + best_fat_arch; } break; default: return(NULL); } return(NULL); }