Closed
Description
Work environment
| Questions | Answers |
|---|---|
| System Capstone runs on OS/arch/bits | Debian amd64 bookworm |
| Capstone module affected | arm |
| Source of Capstone | git clone |
| Version/git commit | f2f0a3c |
Expected behavior
pop instruction of Thumb should have correct register access info:
$ ./cstool -d arm+thumb "f0bd"
0 f0 bd pop {r4, r5, r6, r7, pc}
ID: 634 (pop)
op_count: 5
operands[0].type: REG = r4
operands[0].access: WRITE
operands[1].type: REG = r5
operands[1].access: WRITE
operands[2].type: REG = r6
operands[2].access: WRITE
operands[3].type: REG = r7
operands[3].access: WRITE
operands[4].type: REG = r15
operands[4].access: WRITE
Registers read: r13
Registers modified: r13 r4 r5 r6 r7 r15
Groups: IsThumb returnActual behavior
Actual output is wrong:
$ ./cstool -d arm+thumb "f0bd"
0 f0 bd pop {r4, r5, r6, r7, pc}
ID: 634 (pop)
op_count: 5
operands[0].type: REG = r4
operands[0].access: READ
operands[1].type: REG = r5
operands[1].access: READ
operands[2].type: REG = r6
operands[2].access: READ
operands[3].type: REG = r7
operands[3].access: READ
operands[4].type: REG = r15
operands[4].access: READ
Registers read: r13 r4 r5 r6 r7 r15
Registers modified: r13
Groups: IsThumb returnSteps to reproduce the behavior
- Run
./cstool -d arm+thumb "f0bd"
Additional Logs, screenshots, source code, configuration dump, ...
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