| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133 |
- ## 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
- 02 00 ## e_type Indicating Executable
- 3e 00 ## e_machine Indicating AMD64
- 01 00 00 00 ## e_version Indicating original elf
- b0 00 40 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
- 02 00 ## e_phnum number of entries in program table
- 40 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
- 05 00 00 00 ## Flags
- 00 00 00 00 00 00 00 00 ## p_offset
- 00 00 40 00 00 00 00 00 ## p_vaddr
- 00 00 40 00 00 00 00 00 ## Undefined
- 11 01 00 00 00 00 00 00 ## p_filesz
- 11 01 00 00 00 00 00 00 ## p_memsz
- 00 00 20 00 00 00 00 00 ## Required alignment
- ## BSS section header
- 01 00 00 00 ## p_type
- 06 00 00 00 ## Flags
- 14 01 00 00 00 00 00 00 ## p_offset
- 14 01 60 00 00 00 00 00 ## p_vaddr
- 14 01 60 00 00 00 00 00 ## Undefined
- 00 00 00 00 00 00 00 00 ## p_filesz
- 00 00 40 00 00 00 00 00 ## p_memsz (4MB)
- 00 00 20 00 00 00 00 00 ## Required alignment
- :_start
- e8 *getchar # callq 600133 <getchar>
- 48 83 f8 ff # cmp $0xffffffffffffffff,%rax
- 74 ._start.done # je 6000cd <_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 6000dd <skip_comment>
- e8 *hex_digit # callq 6000f0 <hex_digit>
- 48 c1 e0 04 # shl $0x4,%rax
- 48 89 04 25 a0 01 60 # mov %rax,0x6001a0
- 00
- e8 *getchar # callq 600133 <getchar>
- e8 *hex_digit # callq 6000f0 <hex_digit>
- 48 09 04 25 a0 01 60 # or %rax,0x6001a0
- 00
- 48 8b 04 25 a0 01 60 # mov 0x6001a0,%rax
- 00
- e8 *putchar # callq 60016f <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 600133 <getchar>
- 48 83 f8 ff # cmp $0xffffffffffffffff,%rax
- 74 .die # je 600123 <die>
- 48 83 f8 0a # cmp $0xa,%rax
- 74 ._start # je 600078 <_start>
- eb .skip_comment # jmp 6000dd <skip_comment>
- :hex_digit
- 48 83 f8 30 # cmp $0x30,%rax
- 7c .hex_digit.next1 # jl 600101 <hex_digit.next1>
- 48 83 f8 39 # cmp $0x39,%rax
- 7f .hex_digit.next1 # jg 600101 <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 600112 <hex_digit.next2>
- 48 83 f8 66 # cmp $0x66,%rax
- 7f .hex_digit.next2 # jg 600112 <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 600123 <die>
- 48 83 f8 46 # cmp $0x46,%rax
- 7f .die # jg 600123 <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 34 25 98 01 60 # lea 0x600198,%rsi
- 00
- 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 600167 <getchar.getchar_fail>
- 48 c7 c0 00 00 00 00 # mov $0x0,%rax
- 8a 04 25 98 01 60 00 # mov 0x600198,%al
- c3 # retq
- :getchar.getchar_fail
- 48 c7 c0 ff ff ff ff # mov $0xffffffffffffffff,%rax
- c3 # retq
- :putchar
- 88 04 25 98 01 60 00 # mov %al,0x600198
- 48 c7 c0 01 00 00 00 # mov $0x1,%rax
- 48 c7 c7 01 00 00 00 # mov $0x1,%rdi
- 48 8d 34 25 98 01 60 # lea 0x600198,%rsi
- 00
- 48 c7 c2 01 00 00 00 # mov $0x1,%rdx
- 0f 05 # syscall
- c3 # retq
|
