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Yi-Ting Shih
2025-04-12 08:26:23 +08:00
commit aa66855054
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** program './hello' loaded. entry point 0x401000.
401000: f3 0f 1e fa endbr64
401004: 55 push rbp
401005: 48 89 e5 mov rbp, rsp
401008: ba 0e 00 00 00 mov edx, 0xe
40100d: 48 8d 05 ec 0f 00 00 lea rax, [rip + 0xfec]
(sdb) break 0x401030
** set a breakpoint at 0x401030.
(sdb) break 0x401040
** set a breakpoint at 0x401040.
(sdb) syscall
** hit a breakpoint at 0x401030.
401030: 0f 05 syscall
401032: c3 ret
401033: b8 00 00 00 00 mov eax, 0
401038: 0f 05 syscall
40103a: c3 ret
(sdb) syscall
** enter a syscall(1) at 0x401030.
401030: 0f 05 syscall
401032: c3 ret
401033: b8 00 00 00 00 mov eax, 0
401038: 0f 05 syscall
40103a: c3 ret
(sdb) cont
hello world!
** hit a breakpoint at 0x401040.
401040: 0f 05 syscall
** the address is out of the range of the text section.
(sdb) syscall
** enter a syscall(60) at 0x401040.
401040: 0f 05 syscall
** the address is out of the range of the text section.
(sdb) syscall
** the target program terminated.