GCC handbook

Q: How to get assembler output from C/C++ source?
A:  REF https://stackoverflow.com/questions/137038/how-do-you-get-assembler-output-from-c-c-source-in-gcc

             gcc -S -o my_asm_output.s helloworld.c
             objdump -S --disassemble helloworld > helloworld.dump

             >>> Doesn't apply for clang-based compiler.