usr/src/usr.bin/f77/f77.tahoe/f77pass1/init.c

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#ifndef lint
static  char *sccsid = "@(#)init.c      5.1 (Berkeley) 85/06/07";
#endif

/*
 * init.c
 *
 * Initializations for f77 compiler, pass 1.
 *
 * University of Utah CS Dept modification history:
 *
 * $Header: init.c,v 2.1 84/07/19 12:03:26 donn Exp $
 * $Log:        init.c,v $
 * Revision 2.1  84/07/19  12:03:26  donn
 * Changed comment headers for UofU.
 *
 * Revision 1.3  84/02/28  21:07:53  donn
 * Added Berkeley changes for call argument temporaries fix.
 *
 * Fixed incorrect check of 'cdatafile' when 'cchkfile' is opened. -- Donn
 */

#include "defs.h"
#include "io.h"
#include <sys/file.h>


FILEP infile    = { stdin };
FILEP diagfile  = { stderr };

FILEP textfile;
FILEP asmfile;
FILEP initfile;
long int headoffset;

char token[1321];
int toklen;
int lineno;
char *infname;
int needkwd;
struct Labelblock *thislabel    = NULL;
flag nowarnflag = NO;
flag ftn66flag  = NO;
flag no66flag   = NO;
flag noextflag  = NO;
flag profileflag        = NO;
flag optimflag  = NO;
flag shiftcase  = YES;
flag undeftype  = NO;
flag shortsubs  = YES;
flag onetripflag        = NO;
flag checksubs  = NO;
flag debugflag [MAXDEBUGFLAG] = { NO };
flag equivdcl   = NO;
int nerr;
int nwarn;
int ndata;

flag saveall;
flag substars;
int parstate    = OUTSIDE;
flag headerdone = NO;
int blklevel;
int impltype[26];
int implleng[26];
int implstg[26];

int tyint       = TYLONG ;
int tylogical   = TYLONG;
ftnint typesize[NTYPES]
        = { 1, SZADDR, SZSHORT, SZLONG, SZLONG, 2*SZLONG,
            2*SZLONG, 4*SZLONG, SZLONG, 1, 1, 1};
int typealign[NTYPES]
        = { 1, ALIADDR, ALISHORT, ALILONG, ALILONG, ALIDOUBLE,
            ALILONG, ALIDOUBLE, ALILONG, 1, 1, 1};
int procno;
int lwmno;
int proctype    = TYUNKNOWN;
char *procname;
int rtvlabel[NTYPES];
int fudgelabel;
Addrp typeaddr;
Addrp retslot;
int cxslot      = -1;
int chslot      = -1;
int chlgslot    = -1;
int procclass   = CLUNKNOWN;
int nentry;
flag multitype;
ftnint procleng;
int lastlabno   = 10;
int lastvarno;
int lastargslot;
int argloc;
ftnint autoleng;
ftnint bssleng  = 0;
int retlabel;
int ret0label;
int lowbss = 0;
int highbss = 0;
int bsslabel;
flag anyinits = NO;
flag anylocals = NO;

int maxctl      = MAXCTL;
struct Ctlframe *ctls;
struct Ctlframe *ctlstack;
struct Ctlframe *lastctl;

Namep regnamep[MAXREGVAR];
int highregvar;
int nregvar;

int maxext      = MAXEXT;
struct Extsym *extsymtab;
struct Extsym *nextext;
struct Extsym *lastext;

int maxequiv    = MAXEQUIV;
struct Equivblock *eqvclass;

int maxhash     = MAXHASH;
struct Hashentry *hashtab;
struct Hashentry *lasthash;

int maxstno     = MAXSTNO;
struct Labelblock *labeltab;
struct Labelblock *labtabend;
struct Labelblock *highlabtab;

int maxdim      = MAXDIM;
struct Rplblock *rpllist        = NULL;
struct Chain *curdtp    = NULL;
flag toomanyinit;
ftnint curdtelt;
chainp templist = NULL;
chainp argtemplist = CHNULL;
chainp activearglist = CHNULL;
chainp holdtemps        = NULL;
int dorange     = 0;
struct Entrypoint *entries      = NULL;

chainp chains   = NULL;

flag inioctl;
Addrp ioblkp;
int iostmt;
int nioctl;
int nequiv      = 0;
int eqvstart    = 0;
int nintnames   = 0;

#ifdef SDB
int dbglabel    = 0;
flag sdbflag    = NO;
#endif

struct Literal litpool[MAXLITERALS];
int nliterals;

int cdatafile;
int cchkfile;
int vdatafile;
int vchkfile;

char cdatafname[44] = "";
char cchkfname[44] = "";
char vdatafname[44] = "";
char vchkfname[44] = "";

long cdatahwm = 0;
long vdatahwm = 0;

ioblock *iodata = NULL;


fileinit()
{
int pid;

pid = getpid();
sprintf(cdatafname, "/tmp/fortcd.%d", pid);
sprintf(cchkfname, "/tmp/fortcc.%d", pid);
sprintf(vdatafname, "/tmp/fortvd.%d", pid);
sprintf(vchkfname, "/tmp/fortvc.%d", pid);

cdatafile = open(cdatafname, O_CREAT | O_RDWR, 0600);
if (cdatafile < 0)
  fatalstr("cannot open tmp file %s", cdatafname);

cchkfile = open(cchkfname, O_CREAT | O_RDWR, 0600);
if (cchkfile < 0)
  fatalstr("cannot open tmp file %s", cchkfname);

pruse(initfile, USEINIT);

procno = 0;
lwmno = 0;
lastlabno = 10;
lastvarno = 0;
nliterals = 0;
nerr = 0;
ndata = 0;

ctls = ALLOCN(maxctl, Ctlframe);
extsymtab = ALLOCN(maxext, Extsym);
eqvclass = ALLOCN(maxequiv, Equivblock);
hashtab = ALLOCN(maxhash, Hashentry);
labeltab = ALLOCN(maxstno, Labelblock);

ctlstack = ctls - 1;
lastctl = ctls + maxctl;
nextext = extsymtab;
lastext = extsymtab + maxext;
lasthash = hashtab + maxhash;
labtabend = labeltab + maxstno;
highlabtab = labeltab;
}


procinit()
{
register Namep p;
register struct Dimblock *q;
register struct Hashentry *hp;
register struct Labelblock *lp;
struct Chain *cp;
int i;

vdatafile = open(vdatafname, O_CREAT | O_RDWR, 0600);
if (vdatafile < 0)
  fatalstr("cannot open tmp file %s", vdatafname);

vchkfile = open(vchkfname, O_CREAT | O_RDWR, 0600);
if (vchkfile < 0)
  fatalstr("cannot open tmp file %s", vchkfname);

pruse(asmfile, USECONST);
#if FAMILY == PCC
        p2pass(USETEXT);
#endif
parstate = OUTSIDE;
headerdone = NO;
blklevel = 1;
saveall = NO;
substars = NO;
nwarn = 0;
thislabel = NULL;
needkwd = 0;

++procno;
proctype = TYUNKNOWN;
procname = "MAIN     ";
procclass = CLUNKNOWN;
nentry = 0;
multitype = NO;
typeaddr = NULL;
retslot = NULL;
cxslot = -1;
chslot = -1;
chlgslot = -1;
procleng = 0;
blklevel = 1;
lastargslot = 0;
#if TARGET==PDP11
        autoleng = 6;
#else
#if TARGET==TAHOE
        autoleng = 52;
#else
        autoleng = 0;
#endif
#endif
for(lp = labeltab ; lp < labtabend ; ++lp)
        lp->stateno = 0;

for(hp = hashtab ; hp < lasthash ; ++hp)
        if(p = hp->varp)
                {
                frexpr(p->vleng);
                if(q = p->vdim)
                        {
                        for(i = 0 ; i < q->ndim ; ++i)
                                {
                                frexpr(q->dims[i].dimsize);
                                frexpr(q->dims[i].dimexpr);
                                }
                        frexpr(q->nelt);
                        frexpr(q->baseoffset);
                        frexpr(q->basexpr);
                        free( (charptr) q);
                        }
                if(p->vclass == CLNAMELIST)
                        frchain( &(p->varxptr.namelist) );
                free( (charptr) p);
                hp->varp = NULL;
                }
nintnames = 0;
highlabtab = labeltab;

ctlstack = ctls - 1;
for(cp = templist ; cp ; cp = cp->nextp)
        free( (charptr) (cp->datap) );
frchain(&templist);
for (cp = argtemplist; cp; cp = cp->nextp)
  free((char *) (cp->datap));
frchain(&argtemplist);
holdtemps = NULL;
dorange = 0;
nregvar = 0;
highregvar = 0;
entries = NULL;
rpllist = NULL;
inioctl = NO;
ioblkp = NULL;
eqvstart += nequiv;
nequiv = 0;

for(i = 0 ; i<NTYPES ; ++i)
        rtvlabel[i] = 0;
fudgelabel = 0;

if(undeftype)
        setimpl(TYUNKNOWN, (ftnint) 0, 'a', 'z');
else
        {
        setimpl(TYREAL, (ftnint) 0, 'a', 'z');
        setimpl(tyint,  (ftnint) 0, 'i', 'n');
        }
setimpl(-STGBSS, (ftnint) 0, 'a', 'z'); /* set class */
setlog();
setopt();

bsslabel = ++lastvarno;
anylocals = NO;
anyinits = NO;
}


setimpl(type, length, c1, c2)
int type;
ftnint length;
int c1, c2;
{
int i;
char buff[100];

if(c1==0 || c2==0)
        return;

if(c1 > c2)
        {
        sprintf(buff, "characters out of order in implicit:%c-%c", c1, c2);
        err(buff);
        }
else
        if(type < 0)
                for(i = c1 ; i<=c2 ; ++i)
                        implstg[i-'a'] = - type;
        else
                {
                type = lengtype(type, (int) length);
                if((type != TYCHAR) && (tyint !=TYSHORT))
                        length = 0;
                for(i = c1 ; i<=c2 ; ++i)
                        {
                        impltype[i-'a'] = type;
                        implleng[i-'a'] = length;
                        }
                }
}