As our machines become faster and faster, we generally don’t think anymore about the cost of printing and formatting strings. What if we defer the formatting work to the host ? The formatting code and the string messages no longer need to be stored on device. Thus, reducing the CPU, RAM and Flash requirements and increasing battery life.

The DWARF debugging Format Requirements For this article we will be using a few different programs to do some tests on the debugging format. To replicate the examples in this article you need: gcc or clang a nice and simple C program readelf and objdump During this article we will be using gcc and clang to compare and do a few experiments. To generate debugging information, you can use the -gdwarf flag in the two compilers to get an ELF file with the right DWARF debugging info in it. I recommend also using -O0 to avoid any problems with optimized out sections of code.