1 // Capstone Java binding 2 // By Nguyen Anh Quynh & Dang Hoang Vu, 2013 3 4 import capstone.Capstone; 5 import capstone.Arm; 6 7 import static capstone.Arm_const.*; 8 9 public class TestArm { 10 11 static byte[] hexString2Byte(String s) { 12 // from http://stackoverflow.com/questions/140131/convert-a-string-representation-of-a-hex-dump-to-a-byte-array-using-java 13 int len = s.length(); 14 byte[] data = new byte[len / 2]; 15 for (int i = 0; i < len; i += 2) { 16 data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4) 17 + Character.digit(s.charAt(i+1), 16)); 18 } 19 return data; 20 } 21 22 static final String ARM_CODE = "EDFFFFEB04e02de500000000e08322e5f102030e0000a0e30230c1e7000053e3000201f10540d0e8"; 23 static final String ARM_CODE2 = "d1e800f0f02404071f3cf2c000004ff00001466c"; 24 static final String THUMB_CODE2 = "4ff00001bde80088d1e800f018bfadbff3ff0b0c86f3008980f3008c4ffa99f6d0ffa201"; 25 static final String THUMB_CODE = "7047eb4683b0c9681fb130bfaff32084"; 26 27 public static Capstone cs; 28 29 private static String hex(int i) { 30 return Integer.toString(i, 16); 31 } 32 33 private static String hex(long i) { 34 return Long.toString(i, 16); 35 } 36 37 public static void print_ins_detail(Capstone.CsInsn ins) { 38 System.out.printf("0x%x:\t%s\t%s\n", ins.address, ins.mnemonic, ins.opStr); 39 40 Arm.OpInfo operands = (Arm.OpInfo) ins.operands; 41 42 if (operands.op.length != 0) { 43 System.out.printf("\top_count: %d\n", operands.op.length); 44 for (int c=0; c<operands.op.length; c++) { 45 Arm.Operand i = (Arm.Operand) operands.op[c]; 46 String imm = hex(i.value.imm); 47 if (i.type == ARM_OP_SYSREG) 48 System.out.printf("\t\toperands[%d].type: SYSREG = %d\n", c, i.value.reg); 49 if (i.type == ARM_OP_REG) 50 System.out.printf("\t\toperands[%d].type: REG = %s\n", c, ins.regName(i.value.reg)); 51 if (i.type == ARM_OP_IMM) 52 System.out.printf("\t\toperands[%d].type: IMM = 0x%x\n", c, i.value.imm); 53 if (i.type == ARM_OP_PIMM) 54 System.out.printf("\t\toperands[%d].type: P-IMM = %d\n", c, i.value.imm); 55 if (i.type == ARM_OP_CIMM) 56 System.out.printf("\t\toperands[%d].type: C-IMM = %d\n", c, i.value.imm); 57 if (i.type == ARM_OP_SETEND) 58 System.out.printf("\t\toperands[%d].type: SETEND = %s\n", c, i.value.setend == ARM_SETEND_BE? "be" : "le"); 59 if (i.type == ARM_OP_FP) 60 System.out.printf("\t\toperands[%d].type: FP = %f\n", c, i.value.fp); 61 if (i.type == ARM_OP_MEM) { 62 System.out.printf("\t\toperands[%d].type: MEM\n",c); 63 String base = ins.regName(i.value.mem.base); 64 String index = ins.regName(i.value.mem.index); 65 if (base != null) 66 System.out.printf("\t\t\toperands[%d].mem.base: REG = %s\n", c, base); 67 if (index != null) 68 System.out.printf("\t\t\toperands[%d].mem.index: REG = %s\n", c, index); 69 if (i.value.mem.scale != 1) 70 System.out.printf("\t\t\toperands[%d].mem.scale: %d\n", c, (i.value.mem.scale)); 71 if (i.value.mem.disp != 0) 72 System.out.printf("\t\t\toperands[%d].mem.disp: 0x%x\n", c, (i.value.mem.disp)); 73 } 74 if (i.vector_index > 0) 75 System.out.printf("\t\t\toperands[%d].vector_index = %d\n", c, (i.vector_index)); 76 if (i.shift.type != ARM_SFT_INVALID && i.shift.value > 0) 77 System.out.printf("\t\t\tShift: %d = %d\n", i.shift.type, i.shift.value); 78 if (i.subtracted) 79 System.out.printf("\t\t\toperands[%d].subtracted = True\n", c); 80 } 81 } 82 if (operands.writeback) 83 System.out.println("\tWrite-back: True"); 84 85 if (operands.updateFlags) 86 System.out.println("\tUpdate-flags: True"); 87 88 if (operands.cc != ARM_CC_AL && operands.cc != ARM_CC_INVALID) 89 System.out.printf("\tCode condition: %d\n", operands.cc); 90 91 if (operands.cpsMode > 0) 92 System.out.printf("\tCPSI-mode: %d\n", operands.cpsMode); 93 94 if (operands.cpsFlag > 0) 95 System.out.printf("\tCPSI-flag: %d\n", operands.cpsFlag); 96 97 if (operands.vectorData > 0) 98 System.out.printf("\tVector-data: %d\n", operands.vectorData); 99 100 if (operands.vectorSize > 0) 101 System.out.printf("\tVector-size: %d\n", operands.vectorSize); 102 103 if (operands.usermode) 104 System.out.printf("\tUser-mode: True\n"); 105 } 106 107 public static void main(String argv[]) { 108 109 final Test.platform[] all_tests = { 110 new Test.platform(Capstone.CS_ARCH_ARM, Capstone.CS_MODE_ARM, hexString2Byte(ARM_CODE), "ARM"), 111 new Test.platform(Capstone.CS_ARCH_ARM, Capstone.CS_MODE_THUMB, hexString2Byte(THUMB_CODE), "Thumb"), 112 new Test.platform(Capstone.CS_ARCH_ARM, Capstone.CS_MODE_THUMB, hexString2Byte(ARM_CODE2), "Thumb-mixed"), 113 new Test.platform(Capstone.CS_ARCH_ARM, Capstone.CS_MODE_THUMB, Capstone.CS_OPT_SYNTAX_NOREGNAME, hexString2Byte(THUMB_CODE2), "Thumb-2 & register named with numbers"), 114 }; 115 116 for (int i=0; i<all_tests.length; i++) { 117 Test.platform test = all_tests[i]; 118 System.out.println(new String(new char[16]).replace("\0", "*")); 119 System.out.println("Platform: " + test.comment); 120 System.out.println("Code: " + Test.stringToHex(test.code)); 121 System.out.println("Disasm:"); 122 123 cs = new Capstone(test.arch, test.mode); 124 cs.setDetail(Capstone.CS_OPT_ON); 125 if (test.syntax != 0) 126 cs.setSyntax(test.syntax); 127 Capstone.CsInsn[] all_ins = cs.disasm(test.code, 0x1000); 128 129 for (int j = 0; j < all_ins.length; j++) { 130 print_ins_detail(all_ins[j]); 131 System.out.println(); 132 } 133 System.out.printf("0x%x:\n\n", (all_ins[all_ins.length-1].address + all_ins[all_ins.length-1].size)); 134 135 // Close when done 136 cs.close(); 137 } 138 } 139 140 } 141
