Disassembling object and executable files
Object files (.o) and executable files (.x) are binary files, and common text editors cannot display their contents in a readable form.
To analyze these files, you need special programs called "disassemblers", which interpret the file's contents and convert its representation to text.
You can use the GNU disassembler tool, objdump, or the llvm-objdump tool to disassemble the binary file and display its information in a textual format.
To do this, simply execute the command:
llvm-objdump -D prog.o
Compare the output produced by the disassembler (llvm-objdump) with the assembly language program file used during the assembly process (prog.s).
You'll notice that they are different, but share several common elements (e.g., lists of instructions to be executed by the processor).