Hi there. How can one find out exactly what C function definitions are expected to be present when compiling for a bare-metal or RTOS environment? For instance, I know that one probably has to provide a definition of `malloc` and `string.h` functions, but is there a definitive list of required functions when not importing any libraries? And as for using the standard library, is it possible that a certain part of it requires some C symbol to be defined somewhere, but that one only needs to provide this C function if one is using that particular part of the library?
For context, I am trying to get a good enough understanding of Nim's compilation process and what C code it emits and expects, so that I might use Nim for a bare-metal OS project or to include some Nim in my existing C MCU project at work. Thanks in advanced, Pete
