#as: --64 #ld: -pie -melf_x86_64 #objdump: -dw .*: +file format .* Disassembly of section .text: #... [ ]*[a-f0-9]+: 8b 05 ([0-9a-f]{2} ){4} * mov 0x[a-f0-9]+\(%rip\),%eax # [a-f0-9]+ <.*> #pass