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/*

    		 Crown Copyright (c) 1997

    This TenDRA(r) Computer Program is subject to Copyright

    owned by the United Kingdom Secretary of State for Defence

    acting through the Defence Evaluation and Research Agency

    (DERA).  It is made available to Recipients with a

    royalty-free licence for its use, reproduction, transfer

    to other parties and amendment for any purpose not excluding

    product development provided that any such use et cetera

    shall be deemed to be acceptance of the following conditions:-

        (1) Its Recipients shall ensure that this Notice is

        reproduced upon any copies or amended versions of it;

        (2) Any amended version of it shall be clearly marked to

        show both the nature of and the organisation responsible

        for the relevant amendment or amendments;

        (3) Its onward transfer from a recipient to another

        party shall be deemed to be that party's acceptance of

        these conditions;

        (4) DERA gives no warranty or assurance as to its

        quality or suitability for any purpose and DERA accepts

        no liability whatsoever in relation to any use to which

        it may be put.

*/

/*********************************************************************

                     main.c

   This is the main routine.

    It constructs .G (binasm) and .T (symbol table) files from the input .t

    files. If -S is given it will also construct a .s (assembler) file in as_file.

 *********************************************************************/

#include "config.h"

#include "version.h"

#include "common_types.h"

#include "basicread.h"

#include "flags.h"

#include "main_reads.h"

#include "flpt.h"

#include "externs.h"

#include "installglob.h"

#include "machine.h"

#include "exp.h"

#include "dump_distr.h"

#include "construct_v.h"

#include "reader_v.h"

extern void output_symtab PROTO_S (( char* ));

void out_rename

    PROTO_N ( (oldid, newid) )

    PROTO_T ( char * oldid X char * newid )

{

	/* ??? this may be wrong with diagnostics */

	return;

}

extern int good_trans;

bool do_extern_adds;

FILE * as_file;

FILE * ba_file;

int   majorno = 3;

int   minorno = 18;

long  currentfile = -1;		/* our source fileno 0.. */

long  mainfile = 0;		/* would be best if it  actually contained

				   main ! */

bool BIGEND = (little_end == 0);

bool do_tlrecursion = 0;

bool opt

    PROTO_N ( (c) )

    PROTO_T ( char c )

{ if (c == '0' || c == 0) return 0;

  else return 1;

}

int   main

    PROTO_N ( (argc, argv) )

    PROTO_T ( int argc X char **argv )

{

  long  i;

  char *nm;

  char *aname;

  char *dname;

  bool withs = 0;

  bool no_opts = 0;

  bool override_diags = 0;

  PIC_code = 1;

  as_file = (FILE *) 0;

  do_inlining = 1;

  redo_structfns = 1;

  do_unroll = 1;

  do_foralls = 1;

  do_alloca = 0;

  do_extern_adds = 0;

  for (i = 1; argv[i][0] == '-'; ++i) {/* read flags */

    char *s = argv[i];

    switch (s[1]) {

      case 'A':

	if ((do_alloca = opt(s[2]))/*I mean it */ && PIC_code) {

		failer("Can't do inline alloca with PIC code at the moment");

		exit(EXIT_FAILURE);

	}

	break;

      case 'B':

	do_foralls = opt(s[2]);

	break;

      case 'C':

	do_loopconsts = opt(s[2]);

	break;

      case 'D':

	if (!opt(s[2])) {failer("Only PIC code available");

		exit(EXIT_FAILURE);

	}

	break;

      case 'E':

        extra_checks = 0;

        break;

      case 'e':

	do_extern_adds = opt(s[2]);

	break;

      case 'F':

        do_foralls = opt(s[2]);

        break;

      case '-':

      	override_diags = 1;

      	break;

      case 'H':

	diagnose = 1;

	do_alloca = 0; /* dbx does not understand variable frame sizes */

	break;

      case 'I':

	do_inlining = opt(s[2]);

        break;

      case 'K':

	/* only MIPS ultrix */

	break;

      case 'M':

	strict_fl_div = (opt(s[2]) == 0);

	break;

      case 'P':

	do_profile = 1;

	break;

      case 'Q':

	exit(EXIT_FAILURE);

      case 'R':

	round_after_flop = opt(s[2]);

	break;

      case 'S':

	withs =1;

	break;

      case 'U':

        do_unroll = opt(s[2]);

        break;

      case 'V': {

		int   ind = 2;

		int maj = 0;

		minorno = 0;

		for (;; ind++) {

		  char  si = s[ind];

		  if (si != ' ') {

		    if (si >= '0' && si <= '9') {

		      maj = maj * 10 + si - '0';

		    }

		    else

		      break;

		  }

		}

		if (s[ind] != '.') {

		  fprintf(stderr,

                "DRA TDF Mips BIGEND (as:3.x) translator %d.%d (TDF version %d.%d): 30th June 1994\n",

                 mipstrans_version,mipstrans_revision,MAJOR_VERSION, MINOR_VERSION);

                 fprintf(stderr, "reader %d.%d: ", reader_version,

		 reader_revision);

	         fprintf(stderr, "construct %d.%d: \n", construct_version,

		 construct_revision);

        	 break;

		}

		majorno = maj;

		minorno = 0;

		for (ind++;; ind++) {

		  char  si = s[ind];

		  if (si >= '0' && si <= '9') {

		    minorno = minorno * 10 + si - '0';

		  }

		  else

		    break;

		}

	      }

      case 'W':

        writable_strings = opt(s[2]);

        break;

      case 'X':

        no_opts = 1;

        break;

      case 'd':

        do_dump_opt = 0;

        break;

      case 'l':

        do_tlrecursion = opt(s[2]);

        break;

      case 'Z': /* prints on stderr the versions of all the capsules

                   from which this capsule was made */

        report_versions = 1;

        break;

      default:

	failer ("Illegal flag");

	break;

    };

  };

  if (override_diags) diagnose = 0;

  if (diagnose || no_opts) {		/* line numbering goes to hell with

				   optimisations */

        do_inlining = 0;

        do_loopconsts = 0;

        do_foralls = 0;

        do_dump_opt = 0;

        do_unroll = 0;

	do_tlrecursion = 0;

  };

  if (withs) {			/* requires assembler text */

    aname = argv[argc - 1];

    as_file = fopen (aname, "w");

    if (as_file == (FILE *) 0) {

      failer ("can't find .s file");

      return 1;

    }

    argc--;

  }

  dname = argv[argc - 1];	/* the .T file */

  nm = argv[argc - 2];		/* the .G file */

  ba_file = fopen (nm, "w");

  if (ba_file == (FILE *) 0) {

    printf ("install: can't open output file %s\n", nm);

    return (1);

  }

  if (!initreader (argv[argc - 3])) {

    failer ("cant read .t file");

    return (1);

  };

  init_flpt();

#include "inits.h"

  top_def = (dec*)0;

  local_prefix = "$$";

  name_prefix = "";

  d_capsule();

  if (as_file)

    fclose (as_file);		/* close the .s file */

  fclose (ba_file);		/* close the .G file */

  output_symtab (dname);	/* construct the .T file */

  return (good_trans);		/* return 1 for error, 0 for good */

}