char_driver_sample.ko: file format elf64-x86-64 Disassembly of section .text: 0000000000000000 <__pfx_my_open>: 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 0000000000000010 : 10: e8 00 00 00 00 call 15 15: 55 push %rbp 16: 31 c0 xor %eax,%eax 18: 83 05 00 00 00 00 01 addl $0x1,0x0(%rip) # 1f 1f: 48 89 e5 mov %rsp,%rbp 22: 5d pop %rbp 23: e9 00 00 00 00 jmp 28 28: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 2f: 00 0000000000000030 <__pfx_my_release>: 30: 90 nop 31: 90 nop 32: 90 nop 33: 90 nop 34: 90 nop 35: 90 nop 36: 90 nop 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop 0000000000000040 : 40: e8 00 00 00 00 call 45 45: 55 push %rbp 46: 31 c0 xor %eax,%eax 48: 83 2d 00 00 00 00 01 subl $0x1,0x0(%rip) # 4f 4f: 48 89 e5 mov %rsp,%rbp 52: 5d pop %rbp 53: e9 00 00 00 00 jmp 58 58: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 5f: 00 0000000000000060 <__pfx_my_llseek>: 60: 90 nop 61: 90 nop 62: 90 nop 63: 90 nop 64: 90 nop 65: 90 nop 66: 90 nop 67: 90 nop 68: 90 nop 69: 90 nop 6a: 90 nop 6b: 90 nop 6c: 90 nop 6d: 90 nop 6e: 90 nop 6f: 90 nop 0000000000000070 : 70: e8 00 00 00 00 call 75 75: 55 push %rbp 76: 48 89 e5 mov %rsp,%rbp 79: 83 fa 01 cmp $0x1,%edx 7c: 74 23 je a1 7e: 83 fa 02 cmp $0x2,%edx 81: 74 43 je c6 83: 85 d2 test %edx,%edx 85: 74 1e je a5 87: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 8e: e8 00 00 00 00 call 93 93: 31 c0 xor %eax,%eax 95: 5d pop %rbp 96: 31 d2 xor %edx,%edx 98: 31 f6 xor %esi,%esi 9a: 31 ff xor %edi,%edi 9c: e9 00 00 00 00 jmp a1 a1: 48 03 77 40 add 0x40(%rdi),%rsi a5: 48 85 f6 test %rsi,%rsi a8: 78 25 js cf aa: b8 00 04 00 00 mov $0x400,%eax af: 48 39 c6 cmp %rax,%rsi b2: 48 0f 4e c6 cmovle %rsi,%rax b6: 48 89 47 40 mov %rax,0x40(%rdi) ba: 5d pop %rbp bb: 31 d2 xor %edx,%edx bd: 31 f6 xor %esi,%esi bf: 31 ff xor %edi,%edi c1: e9 00 00 00 00 jmp c6 c6: 48 81 c6 00 04 00 00 add $0x400,%rsi cd: eb d6 jmp a5 cf: 48 c7 c7 00 00 00 00 mov $0x0,%rdi d6: e8 00 00 00 00 call db db: 48 c7 c0 ea ff ff ff mov $0xffffffffffffffea,%rax e2: 5d pop %rbp e3: 31 d2 xor %edx,%edx e5: 31 f6 xor %esi,%esi e7: 31 ff xor %edi,%edi e9: e9 00 00 00 00 jmp ee ee: 66 90 xchg %ax,%ax 00000000000000f0 <__pfx_my_read>: f0: 90 nop f1: 90 nop f2: 90 nop f3: 90 nop f4: 90 nop f5: 90 nop f6: 90 nop f7: 90 nop f8: 90 nop f9: 90 nop fa: 90 nop fb: 90 nop fc: 90 nop fd: 90 nop fe: 90 nop ff: 90 nop 0000000000000100 : 100: e8 00 00 00 00 call 105 105: 55 push %rbp 106: 48 8b 39 mov (%rcx),%rdi 109: 48 89 e5 mov %rsp,%rbp 10c: 41 56 push %r14 10e: 41 55 push %r13 110: 41 54 push %r12 112: 53 push %rbx 113: bb 00 04 00 00 mov $0x400,%ebx 118: 48 29 fb sub %rdi,%rbx 11b: 74 72 je 18f 11d: 48 39 d3 cmp %rdx,%rbx 120: 4c 8d a7 00 00 00 00 lea 0x0(%rdi),%r12 127: 48 0f 47 da cmova %rdx,%rbx 12b: 48 81 fb ff ff ff 7f cmp $0x7fffffff,%rbx 132: 77 7e ja 1b2 134: 49 89 f6 mov %rsi,%r14 137: ba 01 00 00 00 mov $0x1,%edx 13c: 48 89 de mov %rbx,%rsi 13f: 4c 89 e7 mov %r12,%rdi 142: 49 89 cd mov %rcx,%r13 145: e8 00 00 00 00 call 14a 14a: 48 89 da mov %rbx,%rdx 14d: 4c 89 e6 mov %r12,%rsi 150: 4c 89 f7 mov %r14,%rdi 153: e8 00 00 00 00 call 158 158: 48 85 c0 test %rax,%rax 15b: 75 57 jne 1b4 15d: 49 01 5d 00 add %rbx,0x0(%r13) 161: 48 c7 c2 00 00 00 00 mov $0x0,%rdx 168: 48 89 de mov %rbx,%rsi 16b: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 172: e8 00 00 00 00 call 177 177: 48 89 d8 mov %rbx,%rax 17a: 5b pop %rbx 17b: 41 5c pop %r12 17d: 41 5d pop %r13 17f: 41 5e pop %r14 181: 5d pop %rbp 182: 31 d2 xor %edx,%edx 184: 31 c9 xor %ecx,%ecx 186: 31 f6 xor %esi,%esi 188: 31 ff xor %edi,%edi 18a: e9 00 00 00 00 jmp 18f 18f: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 196: e8 00 00 00 00 call 19b 19b: 31 c0 xor %eax,%eax 19d: 5b pop %rbx 19e: 41 5c pop %r12 1a0: 41 5d pop %r13 1a2: 41 5e pop %r14 1a4: 5d pop %rbp 1a5: 31 d2 xor %edx,%edx 1a7: 31 c9 xor %ecx,%ecx 1a9: 31 f6 xor %esi,%esi 1ab: 31 ff xor %edi,%edi 1ad: e9 00 00 00 00 jmp 1b2 1b2: 0f 0b ud2 1b4: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 1bb: e8 00 00 00 00 call 1c0 1c0: 48 c7 c0 f2 ff ff ff mov $0xfffffffffffffff2,%rax 1c7: eb b1 jmp 17a 1c9: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 00000000000001d0 <__pfx_init_module>: 1d0: 90 nop 1d1: 90 nop 1d2: 90 nop 1d3: 90 nop 1d4: 90 nop 1d5: 90 nop 1d6: 90 nop 1d7: 90 nop 1d8: 90 nop 1d9: 90 nop 1da: 90 nop 1db: 90 nop 1dc: 90 nop 1dd: 90 nop 1de: 90 nop 1df: 90 nop 00000000000001e0 : 1e0: e8 00 00 00 00 call 1e5 1e5: 55 push %rbp 1e6: 48 c7 c6 00 00 00 00 mov $0x0,%rsi 1ed: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 1f4: 48 89 e5 mov %rsp,%rbp 1f7: 53 push %rbx 1f8: e8 00 00 00 00 call 1fd 1fd: 49 c7 c0 00 00 00 00 mov $0x0,%r8 204: 48 c7 c1 00 00 00 00 mov $0x0,%rcx 20b: 31 f6 xor %esi,%esi 20d: ba 00 01 00 00 mov $0x100,%edx 212: bf ff 01 00 00 mov $0x1ff,%edi 217: e8 00 00 00 00 call 21c 21c: 89 c3 mov %eax,%ebx 21e: 85 c0 test %eax,%eax 220: 75 2a jne 24c 222: 48 c7 c6 00 00 00 00 mov $0x0,%rsi 229: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 230: e8 00 00 00 00 call 235 235: 89 d8 mov %ebx,%eax 237: 48 8b 5d f8 mov -0x8(%rbp),%rbx 23b: c9 leave 23c: 31 d2 xor %edx,%edx 23e: 31 c9 xor %ecx,%ecx 240: 31 f6 xor %esi,%esi 242: 31 ff xor %edi,%edi 244: 45 31 c0 xor %r8d,%r8d 247: e9 00 00 00 00 jmp 24c 24c: 89 c6 mov %eax,%esi 24e: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 255: e8 00 00 00 00 call 25a 25a: 89 d8 mov %ebx,%eax 25c: 48 8b 5d f8 mov -0x8(%rbp),%rbx 260: c9 leave 261: 31 d2 xor %edx,%edx 263: 31 c9 xor %ecx,%ecx 265: 31 f6 xor %esi,%esi 267: 31 ff xor %edi,%edi 269: 45 31 c0 xor %r8d,%r8d 26c: e9 00 00 00 00 jmp 271 271: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 278: 00 00 00 00 27c: 0f 1f 40 00 nopl 0x0(%rax) 0000000000000280 <__pfx_cleanup_module>: 280: 90 nop 281: 90 nop 282: 90 nop 283: 90 nop 284: 90 nop 285: 90 nop 286: 90 nop 287: 90 nop 288: 90 nop 289: 90 nop 28a: 90 nop 28b: 90 nop 28c: 90 nop 28d: 90 nop 28e: 90 nop 28f: 90 nop 0000000000000290 : 290: e8 00 00 00 00 call 295 295: 55 push %rbp 296: 8b 05 00 00 00 00 mov 0x0(%rip),%eax # 29c 29c: 48 89 e5 mov %rsp,%rbp 29f: 85 c0 test %eax,%eax 2a1: 75 3b jne 2de 2a3: 48 c7 c1 00 00 00 00 mov $0x0,%rcx 2aa: ba 00 01 00 00 mov $0x100,%edx 2af: 31 f6 xor %esi,%esi 2b1: bf ff 01 00 00 mov $0x1ff,%edi 2b6: e8 00 00 00 00 call 2bb 2bb: 48 c7 c6 00 00 00 00 mov $0x0,%rsi 2c2: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 2c9: e8 00 00 00 00 call 2ce 2ce: 5d pop %rbp 2cf: 31 c0 xor %eax,%eax 2d1: 31 d2 xor %edx,%edx 2d3: 31 c9 xor %ecx,%ecx 2d5: 31 f6 xor %esi,%esi 2d7: 31 ff xor %edi,%edi 2d9: e9 00 00 00 00 jmp 2de 2de: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 2e5: e8 00 00 00 00 call 2ea 2ea: 5d pop %rbp 2eb: 31 c0 xor %eax,%eax 2ed: 31 d2 xor %edx,%edx 2ef: 31 c9 xor %ecx,%ecx 2f1: 31 f6 xor %esi,%esi 2f3: 31 ff xor %edi,%edi 2f5: e9 00 00 00 00 jmp 2fa 2fa: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) 0000000000000300 <__pfx_my_write>: 300: 90 nop 301: 90 nop 302: 90 nop 303: 90 nop 304: 90 nop 305: 90 nop 306: 90 nop 307: 90 nop 308: 90 nop 309: 90 nop 30a: 90 nop 30b: 90 nop 30c: 90 nop 30d: 90 nop 30e: 90 nop 30f: 90 nop 0000000000000310 : 310: e8 00 00 00 00 call 315 315: 55 push %rbp 316: 48 8b 39 mov (%rcx),%rdi 319: 48 89 e5 mov %rsp,%rbp 31c: 41 56 push %r14 31e: 41 55 push %r13 320: 41 54 push %r12 322: 53 push %rbx 323: bb 00 04 00 00 mov $0x400,%ebx 328: 48 29 fb sub %rdi,%rbx 32b: 0f 84 85 00 00 00 je 3b6 331: 48 39 d3 cmp %rdx,%rbx 334: 4c 8d a7 00 00 00 00 lea 0x0(%rdi),%r12 33b: 48 0f 47 da cmova %rdx,%rbx 33f: 48 81 fb ff ff ff 7f cmp $0x7fffffff,%rbx 346: 77 57 ja 39f 348: 31 d2 xor %edx,%edx 34a: 49 89 f5 mov %rsi,%r13 34d: 4c 89 e7 mov %r12,%rdi 350: 48 89 de mov %rbx,%rsi 353: 49 89 ce mov %rcx,%r14 356: e8 00 00 00 00 call 35b 35b: 48 89 da mov %rbx,%rdx 35e: 4c 89 ee mov %r13,%rsi 361: 4c 89 e7 mov %r12,%rdi 364: e8 00 00 00 00 call 369 369: 48 85 c0 test %rax,%rax 36c: 75 33 jne 3a1 36e: 49 01 1e add %rbx,(%r14) 371: 48 c7 c2 00 00 00 00 mov $0x0,%rdx 378: 48 89 de mov %rbx,%rsi 37b: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 382: e8 00 00 00 00 call 387 387: 48 89 d8 mov %rbx,%rax 38a: 5b pop %rbx 38b: 41 5c pop %r12 38d: 41 5d pop %r13 38f: 41 5e pop %r14 391: 5d pop %rbp 392: 31 d2 xor %edx,%edx 394: 31 c9 xor %ecx,%ecx 396: 31 f6 xor %esi,%esi 398: 31 ff xor %edi,%edi 39a: e9 00 00 00 00 jmp 39f 39f: 0f 0b ud2 3a1: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 3a8: e8 00 00 00 00 call 3ad 3ad: 48 c7 c0 f2 ff ff ff mov $0xfffffffffffffff2,%rax 3b4: eb d4 jmp 38a 3b6: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 3bd: e8 00 00 00 00 call 3c2 3c2: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax 3c9: eb bf jmp 38a