1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
// Capstone Java binding
// By Nguyen Anh Quynh & Dang Hoang Vu, 2013
import capstone.Capstone;
import capstone.Arm;
import static capstone.Arm_const.*;
public class TestArm {
static byte[] hexString2Byte(String s) {
// from http://stackoverflow.com/questions/140131/convert-a-string-representation-of-a-hex-dump-to-a-byte-array-using-java
int len = s.length();
byte[] data = new byte[len / 2];
for (int i = 0; i < len; i += 2) {
data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
+ Character.digit(s.charAt(i+1), 16));
}
return data;
}
static final String ARM_CODE = "EDFFFFEB04e02de500000000e08322e5f102030e0000a0e30230c1e7000053e3000201f10540d0e8";
static final String ARM_CODE2 = "d1e800f0f02404071f3cf2c000004ff00001466c";
static final String THUMB_CODE2 = "4ff00001bde80088d1e800f018bfadbff3ff0b0c86f3008980f3008c4ffa99f6d0ffa201";
static final String THUMB_CODE = "7047eb4683b0c9681fb130bfaff32084";
public static Capstone cs;
private static String hex(int i) {
return Integer.toString(i, 16);
}
private static String hex(long i) {
return Long.toString(i, 16);
}
public static void print_ins_detail(Capstone.CsInsn ins) {
System.out.printf("0x%x:\t%s\t%s\n", ins.address, ins.mnemonic, ins.opStr);
Arm.OpInfo operands = (Arm.OpInfo) ins.operands;
if (operands.op.length != 0) {
System.out.printf("\top_count: %d\n", operands.op.length);
for (int c=0; c<operands.op.length; c++) {
Arm.Operand i = (Arm.Operand) operands.op[c];
String imm = hex(i.value.imm);
if (i.type == ARM_OP_SYSREG)
System.out.printf("\t\toperands[%d].type: SYSREG = %d\n", c, i.value.reg);
if (i.type == ARM_OP_REG)
System.out.printf("\t\toperands[%d].type: REG = %s\n", c, ins.regName(i.value.reg));
if (i.type == ARM_OP_IMM)
System.out.printf("\t\toperands[%d].type: IMM = 0x%x\n", c, i.value.imm);
if (i.type == ARM_OP_PIMM)
System.out.printf("\t\toperands[%d].type: P-IMM = %d\n", c, i.value.imm);
if (i.type == ARM_OP_CIMM)
System.out.printf("\t\toperands[%d].type: C-IMM = %d\n", c, i.value.imm);
if (i.type == ARM_OP_SETEND)
System.out.printf("\t\toperands[%d].type: SETEND = %s\n", c, i.value.setend == ARM_SETEND_BE? "be" : "le");
if (i.type == ARM_OP_FP)
System.out.printf("\t\toperands[%d].type: FP = %f\n", c, i.value.fp);
if (i.type == ARM_OP_MEM) {
System.out.printf("\t\toperands[%d].type: MEM\n",c);
String base = ins.regName(i.value.mem.base);
String index = ins.regName(i.value.mem.index);
if (base != null)
System.out.printf("\t\t\toperands[%d].mem.base: REG = %s\n", c, base);
if (index != null)
System.out.printf("\t\t\toperands[%d].mem.index: REG = %s\n", c, index);
if (i.value.mem.scale != 1)
System.out.printf("\t\t\toperands[%d].mem.scale: %d\n", c, (i.value.mem.scale));
if (i.value.mem.disp != 0)
System.out.printf("\t\t\toperands[%d].mem.disp: 0x%x\n", c, (i.value.mem.disp));
if (i.value.mem.lshift != 0)
System.out.printf("\t\t\toperands[%d].mem.lshift: 0x%x\n", c, (i.value.mem.lshift));
}
if (i.vector_index > 0)
System.out.printf("\t\t\toperands[%d].vector_index = %d\n", c, (i.vector_index));
if (i.shift.type != ARM_SFT_INVALID && i.shift.value > 0)
System.out.printf("\t\t\tShift: %d = %d\n", i.shift.type, i.shift.value);
if (i.subtracted)
System.out.printf("\t\t\toperands[%d].subtracted = True\n", c);
}
}
if (operands.writeback)
System.out.println("\tWrite-back: True");
if (operands.updateFlags)
System.out.println("\tUpdate-flags: True");
if (operands.cc != ARM_CC_AL && operands.cc != ARM_CC_INVALID)
System.out.printf("\tCode condition: %d\n", operands.cc);
if (operands.cpsMode > 0)
System.out.printf("\tCPSI-mode: %d\n", operands.cpsMode);
if (operands.cpsFlag > 0)
System.out.printf("\tCPSI-flag: %d\n", operands.cpsFlag);
if (operands.vectorData > 0)
System.out.printf("\tVector-data: %d\n", operands.vectorData);
if (operands.vectorSize > 0)
System.out.printf("\tVector-size: %d\n", operands.vectorSize);
if (operands.usermode)
System.out.printf("\tUser-mode: True\n");
}
public static void main(String argv[]) {
final TestBasic.platform[] all_tests = {
new TestBasic.platform(Capstone.CS_ARCH_ARM, Capstone.CS_MODE_ARM, hexString2Byte(ARM_CODE), "ARM"),
new TestBasic.platform(Capstone.CS_ARCH_ARM, Capstone.CS_MODE_THUMB, hexString2Byte(THUMB_CODE), "Thumb"),
new TestBasic.platform(Capstone.CS_ARCH_ARM, Capstone.CS_MODE_THUMB, hexString2Byte(ARM_CODE2), "Thumb-mixed"),
new TestBasic.platform(Capstone.CS_ARCH_ARM, Capstone.CS_MODE_THUMB, Capstone.CS_OPT_SYNTAX_NOREGNAME, hexString2Byte(THUMB_CODE2), "Thumb-2 & register named with numbers"),
};
for (int i=0; i<all_tests.length; i++) {
TestBasic.platform test = all_tests[i];
System.out.println(new String(new char[16]).replace("\0", "*"));
System.out.println("Platform: " + test.comment);
System.out.println("Code: " + TestBasic.stringToHex(test.code));
System.out.println("Disasm:");
cs = new Capstone(test.arch, test.mode);
cs.setDetail(Capstone.CS_OPT_ON);
if (test.syntax != 0)
cs.setSyntax(test.syntax);
Capstone.CsInsn[] all_ins = cs.disasm(test.code, 0x1000);
for (int j = 0; j < all_ins.length; j++) {
print_ins_detail(all_ins[j]);
System.out.println();
}
System.out.printf("0x%x:\n\n", (all_ins[all_ins.length-1].address + all_ins[all_ins.length-1].size));
// Close when done
cs.close();
}
}
}
|
