<< Classic compiler structure >>

• Overall structure of the gcc program is the same as original K&R C Compiler:
  • A user-mode program (gcc/cc) processes arguments, and decides which other programs to run.
  • The compiler proper (cc1/...) is invoked once for each source file.
  • Result of cc1 is an assembly file, which is assembled using as program.
• This tried-and-true approach is running into problems.