ppcarm [options] [sourcefile]
This binary is the back-end binary of the Free Pascal Compiler (FPC) which is a Turbo Pascal and Delphi (7.0) compatible standalone (non GCC frontend) multitarget Pascal compiler.
This binary should not be called directly, instead the fpc program should be used instead. It will choose the right back-end for compiling units for the requested platforms.
For a complete list of all supported command-line options, see the fpc(1) manual page.