954 file_magic identify_magic(StringRef Magic) {  in identify_magic()  argument
955   if (Magic.size() < 4)  in identify_magic()
957   switch ((unsigned char)Magic[0]) {  in identify_magic()
960       if (Magic[1] == (char)0x00 && Magic[2] == (char)0xff &&  in identify_magic()
961           Magic[3] == (char)0xff) {  in identify_magic()
963         if (Magic.size() < MinSize)  in identify_magic()
967             Magic.data() + offsetof(COFF::BigObjHeader, Version));  in identify_magic()
971         const char *Start = Magic.data() + offsetof(COFF::BigObjHeader, UUID);  in identify_magic()
978       if (Magic.size() >= sizeof(Expected) &&  in identify_magic()
979           memcmp(Magic.data(), Expected, sizeof(Expected)) == 0)  in identify_magic()
982       if (Magic[1] == 0)  in identify_magic()
987       if (Magic[1] == (char)0xC0 && Magic[2] == (char)0x17 &&  in identify_magic()
988           Magic[3] == (char)0x0B)  in identify_magic()
992       if (Magic[1] == 'C' && Magic[2] == (char)0xC0 && Magic[3] == (char)0xDE)  in identify_magic()
996       if (Magic.size() >= 8)  in identify_magic()
997         if (memcmp(Magic.data(), "!<arch>\n", 8) == 0 ||  in identify_magic()
998             memcmp(Magic.data(), "!<thin>\n", 8) == 0)  in identify_magic()
1003       if (Magic.size() >= 18 && Magic[1] == 'E' && Magic[2] == 'L' &&  in identify_magic()
1004           Magic[3] == 'F') {  in identify_magic()
1005         bool Data2MSB = Magic[5] == 2;  in identify_magic()
1008         if (Magic[high] == 0)  in identify_magic()
1009           switch (Magic[low]) {  in identify_magic()
1023       if (Magic[1] == char(0xFE) && Magic[2] == char(0xBA) &&  in identify_magic()
1024           Magic[3] == char(0xBE)) {  in identify_magic()
1027         if (Magic.size() >= 8 && Magic[7] < 43)  in identify_magic()
1039       if (Magic[0] == char(0xFE) && Magic[1] == char(0xED) &&  in identify_magic()
1040           Magic[2] == char(0xFA) &&  in identify_magic()
1041           (Magic[3] == char(0xCE) || Magic[3] == char(0xCF))) {  in identify_magic()
1043         if (Magic.size() >= 16) type = Magic[14] << 8 | Magic[15];  in identify_magic()
1044       } else if ((Magic[0] == char(0xCE) || Magic[0] == char(0xCF)) &&  in identify_magic()
1045                  Magic[1] == char(0xFA) && Magic[2] == char(0xED) &&  in identify_magic()
1046                  Magic[3] == char(0xFE)) {  in identify_magic()
1048         if (Magic.size() >= 14) type = Magic[13] << 8 | Magic[12];  in identify_magic()
1073       if (Magic[1] == 0x01)  in identify_magic()
1078       if (Magic[1] == 0x02)  in identify_magic()
1083       if (Magic[1] == 'Z') {  in identify_magic()
1084         uint32_t off = read32le(Magic.data() + 0x3c);  in identify_magic()
1086         if (off < Magic.size() &&  in identify_magic()
1087             memcmp(Magic.data()+off, COFF::PEMagic, sizeof(COFF::PEMagic)) == 0)  in identify_magic()
1093       if (Magic[1] == char(0x86))  in identify_magic()