gm2-libs/M2RTS (The GNU Modula-2 Compiler)

#### 4.1.25 gm2-libs/M2RTS ¶

    DEFINITION MODULE M2RTS ;

    FROM SYSTEM IMPORT ADDRESS ;

    TYPE
       ArgCVEnvP = PROCEDURE (INTEGER, ADDRESS, ADDRESS) ;

    PROCEDURE ConstructModules (applicationmodule, libname,
                                overrideliborder: ADDRESS;
                                argc: INTEGER; argv, envp: ADDRESS) ;

    PROCEDURE DeconstructModules (applicationmodule, libname: ADDRESS;
                                  argc: INTEGER; argv, envp: ADDRESS) ;

    (*
       RegisterModule - adds module name to the list of outstanding
                        modules which need to have their dependencies
                        explored to determine initialization order.
    *)

    PROCEDURE RegisterModule (name, libname: ADDRESS;
                              init, fini:  ArgCVEnvP;
                              dependencies: PROC) ;

    (*
       RequestDependant - used to specify that modulename is dependant upon
                          module dependantmodule.
    *)

    PROCEDURE RequestDependant (modulename, libname,
                                dependantmodule, dependantlibname: ADDRESS) ;

    (*
       InstallTerminationProcedure - installs a procedure, p, which will
                                     be called when the procedure
                                     ExecuteTerminationProcedures
                                     is invoked.  It returns TRUE is the
                                     procedure is installed.
    *)

    PROCEDURE InstallTerminationProcedure (p: PROC) : BOOLEAN ;

    (*
       ExecuteInitialProcedures - executes the initial procedures installed
                                  by InstallInitialProcedure.
    *)

    PROCEDURE ExecuteInitialProcedures ;

    (*
       InstallInitialProcedure - installs a procedure to be executed just
                                 before the BEGIN code section of the main
                                 program module.
    *)

    PROCEDURE InstallInitialProcedure (p: PROC) : BOOLEAN ;

    (*
       ExecuteTerminationProcedures - calls each installed termination procedure
                                      in reverse order.
    *)

    PROCEDURE ExecuteTerminationProcedures ;

    (*
       Terminate - provides compatibility for pim.  It call exit with
                   the exitcode provided in a prior call to ExitOnHalt
                   (or zero if ExitOnHalt was never called).  It does
                   not call ExecuteTerminationProcedures.
    *)

    PROCEDURE Terminate <* noreturn *> ;

    (*
       HALT - terminate the current program.  The procedure Terminate
              is called before the program is stopped.  The parameter
              exitcode is optional.  If the parameter is not supplied
              HALT will call libc 'abort', otherwise it will exit with
              the code supplied.  Supplying a parameter to HALT has the
              same effect as calling ExitOnHalt with the same code and
              then calling HALT with no parameter.
    *)

    PROCEDURE HALT ([exitcode: INTEGER = -1]) <* noreturn *> ;

    (*
       Halt - provides a more user friendly version of HALT, which takes
               four parameters to aid debugging.  It writes an error message
               to stderr and calls exit (1).
    *)

    PROCEDURE Halt (description, filename, function: ARRAY OF CHAR;
                    line: CARDINAL) <* noreturn *> ;

    (*
       HaltC - provides a more user friendly version of HALT, which takes
               four parameters to aid debugging.  It writes an error message
               to stderr and calls exit (1).
    *)

    PROCEDURE HaltC (description, filename, function: ADDRESS;
                     line: CARDINAL) <* noreturn *> ;

    (*
       ExitOnHalt - if HALT is executed then call exit with the exit code, e.
    *)

    PROCEDURE ExitOnHalt (e: INTEGER) ;

    (*
       ErrorMessage - emits an error message to stderr and then calls exit (1).
    *)

    PROCEDURE ErrorMessage (message: ARRAY OF CHAR;
                            filename: ARRAY OF CHAR;
                            line: CARDINAL;
                            function: ARRAY OF CHAR) <* noreturn *> ;

    (*
       Length - returns the length of a string, a. This is called whenever
                the user calls LENGTH and the parameter cannot be calculated
                at compile time.
    *)

    PROCEDURE Length (a: ARRAY OF CHAR) : CARDINAL ;

    (*
       The following are the runtime exception handler routines.
    *)

    PROCEDURE AssignmentException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE ReturnException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE IncException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE DecException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE InclException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE ExclException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE ShiftException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE RotateException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE StaticArraySubscriptException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE DynamicArraySubscriptException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE ForLoopBeginException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE ForLoopToException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE ForLoopEndException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE PointerNilException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE NoReturnException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE CaseException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE WholeNonPosDivException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE WholeNonPosModException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE WholeZeroDivException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE WholeZeroRemException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE WholeValueException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE RealValueException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE ParameterException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;
    PROCEDURE NoException (filename: ADDRESS; line, column: CARDINAL; scope, message: ADDRESS) <* noreturn *> ;

    END M2RTS.