takes a file containing the output of calling "objdump -d " and returns only the op codes section.
- Install SBCL with whatever package manager you have:
"emerge sbcl" on Gentoo - Take the output of objdump and put into a file:
- Now save this file op-codes.lisp into the same directory as your compiled assembly and make it executable
chmod +x op-codes.lisp - then run it it with the file name you created a minute ago as the argument:
bash-asm: file format elf64-x86-64
Disassembly of section .text:
00000000004000b0 <_start>:
4000b0: b8 3b 00 00 00 mov $0x3b,%eax
4000b5: 48 bf c8 00 60 00 00 movabs $0x6000c8,%rdi
4000bc: 00 00 00
4000bf: 48 31 f6 xor %rsi,%rsi
4000c2: 48 31 d2 xor %rdx,%rdx
4000c5: 0f 05 syscall
./op-codes.lisp bash-asm-op
\xb8\x3b\x00\x00\x00\x48\xbf\xc8\x00\x60\x00\x00\x00\x00\x00\x48\x31\xf6\x48\x31\xd2\x0f\x05