We want to look for instructions at the start of the function, but some chunks might appear before the start of the function or objdump outputs the wrong symbol for unrelated addresses.
Match the __libc_start_main.* label by looking for the colon : behind it.
We want to look for instructions at the start of the function, but some chunks might appear before the start of the function or objdump outputs the wrong symbol for unrelated addresses.
Match the __libc_start_main.* label by looking for the colon
:behind it.