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- ## ELF Header
- 7F 45 4C 46 ## e_ident[EI_MAG0-3] ELF's magic number
- 02 ## e_ident[EI_CLASS] Indicating 64 bit
- 01 ## e_ident[EI_DATA] Indicating little endianness
- 01 ## e_ident[EI_VERSION] Indicating original elf
- 00 ## e_ident[EI_OSABI] Set at 0 because none cares
- 00 ## e_ident[EI_ABIVERSION] See above
- 00 00 00 00 00 00 00 ## e_ident[EI_PAD]
- 02 00 ## e_type Indicating Executable
- 3E 00 ## e_machine Indicating AMD64
- 01 00 00 00 ## e_version Indicating original elf
- 78 00 60 00 00 00 00 00 ## e_entry Address of the entry point
- 40 00 00 00 00 00 00 00 ## e_phoff Address of program header table
- 00 00 00 00 00 00 00 00 ## e_shoff Address of section header table
- 00 00 00 00 ## e_flags
- 40 00 ## e_ehsize Indicating our 64 Byte header
- 38 00 ## e_phentsize size of a program header table
- 01 00 ## e_phnum number of entries in program table
- 00 00 ## e_shentsize size of a section header table
- 00 00 ## e_shnum number of entries in section table
- 00 00 ## e_shstrndx index of the section names
- ## Program Header table
- 01 00 00 00 ## p_type
- 06 00 00 00 ## Flags
- 00 00 00 00 00 00 00 00 ## p_offset
- 00 00 60 00 00 00 00 00 ## p_vaddr
- 00 00 60 00 00 00 00 00 ## Undefined
- 08 10 00 00 00 00 00 00 ## p_filesz
- 08 10 00 00 00 00 00 00 ## p_memsz
- 00 00 20 00 00 00 00 00 ## Required alignment
- :_start
- e8 *getchar # callq 600130 <getchar>
- 48 83 f8 ff # cmp $0xffffffffffffffff,%rax
- 74 ._start.done # je 6000ca <_start.done>
- 48 83 f8 20 # cmp $0x20,%rax
- 74 ._start # je 600078 <_start>
- 48 83 f8 09 # cmp $0x9,%rax
- 74 ._start # je 600078 <_start>
- 48 83 f8 0a # cmp $0xa,%rax
- 74 ._start # je 600078 <_start>
- 48 83 f8 23 # cmp $0x23,%rax
- 74 .skip_comment # je 6000da <skip_comment>
- e8 *hex_digit # callq 6000ed <hex_digit>
- 48 c1 e0 04 # shl $0x4,%rax
- 48 89 05 *oct # mov %rax,0xec(%rip) # 600197 <oct>
- e8 *getchar # callq 600130 <getchar>
- e8 *hex_digit # callq 6000ed <hex_digit>
- 48 09 05 db 00 00 00 # or %rax,0xdb(%rip) # 600197 <oct>
- 48 8b 05 d4 00 00 00 # mov 0xd4(%rip),%rax # 600197 <oct>
- e8 *putchar # callq 60016a <putchar>
- eb ._start # jmp 600078 <_start>
- :_start.done
- 48 c7 c0 3c 00 00 00 # mov $0x3c,%rax
- 48 c7 c7 00 00 00 00 # mov $0x0,%rdi
- 0f 05 # syscall
- :skip_comment
- e8 *getchar # callq 600130 <getchar>
- 48 83 f8 ff # cmp $0xffffffffffffffff,%rax
- 74 .die # je 600120 <die>
- 48 83 f8 0a # cmp $0xa,%rax
- 74 ._start # je 600078 <_start>
- eb .skip_comment # jmp 6000da <skip_comment>
- :hex_digit
- 48 83 f8 30 # cmp $0x30,%rax
- 7c .hex_digit.next1 # jl 6000fe <hex_digit.next1>
- 48 83 f8 39 # cmp $0x39,%rax
- 7f .hex_digit.next1 # jg 6000fe <hex_digit.next1>
- 48 83 e8 30 # sub $0x30,%rax
- c3 # retq
- :hex_digit.next1
- 48 83 f8 61 # cmp $0x61,%rax
- 7c .hex_digit.next2 # jl 60010f <hex_digit.next2>
- 48 83 f8 66 # cmp $0x66,%rax
- 7f .hex_digit.next2 # jg 60010f <hex_digit.next2>
- 48 83 e8 57 # sub $0x57,%rax
- c3 # retq
- :hex_digit.next2
- 48 83 f8 41 # cmp $0x41,%rax
- 7c .die # jl 600120 <die>
- 48 83 f8 46 # cmp $0x46,%rax
- 7f .die # jg 600120 <die>
- 48 83 e8 37 # sub $0x37,%rax
- c3 # retq
- :die
- 48 c7 c0 3c 00 00 00 # mov $0x3c,%rax
- 48 c7 c7 01 00 00 00 # mov $0x1,%rdi
- 0f 05 # syscall
- :getchar
- 48 c7 c0 00 00 00 00 # mov $0x0,%rax
- 48 c7 c7 00 00 00 00 # mov $0x0,%rdi
- 48 8d 35 *buf # lea 0x4a(%rip),%rsi # 60018f <buf>
- 48 c7 c2 01 00 00 00 # mov $0x1,%rdx
- 0f 05 # syscall
- 48 83 f8 01 # cmp $0x1,%rax
- 75 .getchar.getchar_fail # jne 600162 <getchar.getchar_fail>
- 48 c7 c0 00 00 00 00 # mov $0x0,%rax
- 8a 05 *buf # mov 0x2e(%rip),%al # 60018f <buf>
- c3 # retq
- :getchar.getchar_fail
- 48 c7 c0 ff ff ff ff # mov $0xffffffffffffffff,%rax
- c3 # retq
- :putchar
- 88 05 *buf # mov %al,0x1f(%rip) # 60018f <buf>
- 48 c7 c0 01 00 00 00 # mov $0x1,%rax
- 48 c7 c7 01 00 00 00 # mov $0x1,%rdi
- 48 8d 35 *buf # lea 0xa(%rip),%rsi # 60018f <buf>
- 48 c7 c2 01 00 00 00 # mov $0x1,%rdx
- 0f 05 # syscall
- c3 # retq
- :buf
- 00 00 00 00 00 00 00 00
- :oct
- 00 00 00 00 00 00 00 00
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