doors.h Header File

Header File Index

Basic header file for kernel-mode programming

This header file will be included automatically by default.h if you define the global preprocessor symbol USE_KERNEL.

First, this header file defines a global symbol named DOORS which is used in other header files to indicate kernel mode. Next, it includes default.h to make sure that the basic macros which TIGCC needs are defined. It also includes a header file called romsymb.h, which overrides some definitions from default.h by referring to external _ROM_CALL_xxx symbols which are converted by the linker.

It contains code for tigcc.a, to support RETURN_VALUE. Finally, it contains some rather complicated macros and asm statements to put data needed for RETURN_VALUE directly into the assembly file.

 Functions
_ram_call_addr
Performs a kernel-mode RAM call.
_ram_call
Performs a kernel-mode RAM call with a cast.


See also: How to make a kernel-based program, default.h, nostub.h