usr/src/usr.bin/pascal/pdx/runtime.h

/*-
 * Copyright (c) 1980 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)runtime.h   5.3 (Berkeley) 4/16/91
 */

/*
 * Definitions for the runtime environment.
 *
 * In general, runtime organization is language, machine, and
 * even compiler dependent.
 */

BOOLEAN isactive();             /* tell if a symbol is currently active */
ADDRESS entry_addr();           /* entry address of current proc/func */
ADDRESS entry_point();          /* point where environment is setup */
ADDRESS return_addr();          /* return address of current proc/func */
ADDRESS caller_addr();          /* entry of caller of current proc/func */
int where();                    /* print out currently active procedures */
int dump();                     /* dump the world */
int callproc();                 /* call a procedure */
int procreturn();               /* return from a "call"-ed procedure */
ADDRESS address();              /* address of a variable */
ADDRESS firstline();            /* address of first line in a procedure */
int findbeginning();            /* find address of beginning of a procedure */
int runtofirst();               /* step to first line in current procedure */
ADDRESS lastaddr();             /* address of last line in program */
ADDRESS fparamaddr();           /* entry address of a function parameter */