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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.

*/

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

$Author: release $

$Date: 1998/02/04 10:43:44 $

$Revision: 1.2 $

$Log: syms.c,v $

 * Revision 1.2  1998/02/04  10:43:44  release

 * Changes during testing.

 *

 * Revision 1.1.1.1  1998/01/17  15:56:07  release

 * First version to be checked into rolling release.

 *

 * Revision 1.3  1995/09/12  10:59:44  currie

 * gcc pedanttry

 *

 * Revision 1.2  1995/05/05  08:13:07  currie

 * initial_value + signtures

 *

 * Revision 1.1  1995/04/13  09:08:06  currie

 * Initial revision

 *

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

/*  syms.c   - produce symbol numbers for binasm (dense numbers)

*/

#include "config.h"

#include "cross_config.h"

#ifndef CROSS_INCLUDE

#include <symconst.h>

#else

#include CROSS_INCLUDE/symconst.h>

#endif

#include "common_types.h"

#include "symtab.h"

#include "xalloc.h"

#include "flags.h"

#include "expmacs.h"

#include "shapemacs.h"

#include "syms.h"

#include "tags.h"

#include "main.h"

#include "basicread.h"

#include "mipsdiags.h"

#include "new_symbol.h"

extern long currentfile;

int  *symnos;

int  *tempsnos = (int *) 0;

int   next_temps = 0;

int   no_temps = 0;

int   symnoforext

    PROTO_N ( (ex, filen) )

    PROTO_T ( dec * ex X int filen )

{

				/* produce a symbolno for global given by

				   ex in file filen */

        exp tg = ex -> dec_u.dec_val.dec_exp;

  shape s = ex -> dec_u.dec_val.dec_shape;

  diag_type dt = (diag_type)0;

  short   symtype;

  short   symclass;

  long  v = 0;

  char *id = ex -> dec_u.dec_val.dec_id;

  if (diagnose) {

    diag_descriptor * t = ex ->dec_u.dec_val.diag_info;

    if (t != (diag_descriptor *) 0) {

      id = t -> data.id.nme.ints.chars;

      dt = t -> data.id.new_type;

      filen = find_file(t ->data.id.whence.file->file.ints.chars);

    }

  }

  if (ex -> dec_u.dec_val.extnamed) {/* it is global */

    if (name (s) == prokhd && !isvar (tg)

		&& (son(tg) == nilexp || name(son(tg))== proc_tag

		|| name(son(tg)) == general_proc_tag))

   {/* a declared procedure */

      if (son (tg) != nilexp) {	/* a defined procedure will be output

				   later with this symbolno */

	return add_dense_no (0, 0);

      }

      else {

      	symtype = stGlobal;

        symclass = scNil;

      }

    }

    else {			/* some other global */

      ash a;

      symtype = stGlobal;

      symclass =

	(son (tg) != nilexp) ?

	((name (son (tg))) != clear_tag ? scData : scCommon)

	: scNil;

      a = ashof (s);

      v = (a.ashsize + 7) >> 3;

    }

    return new_esym_d (id, v, symtype, symclass, dt, filen);

  }

  else {			/* statics */

    if (name (s) == prokhd && !isvar (tg)

		&& (son(tg) == nilexp || name(son(tg))== proc_tag

		|| name(son(tg)) == general_proc_tag))

    {/* a procedure */

      symtype = stStaticProc;

      if (son (tg) != nilexp)

	return add_dense_no (0, 0);

      /* a defined procedure will be output later with this symbolno */

      failer ("Static procs should have bodies ");

      symclass = scNil;

    }

    else {			/* other statics */

      symtype = stStatic;

      symclass = (son(tg)== nilexp || name (son (tg)) != clear_tag)

                     ? scData : scCommon;

    }

    return new_lsym_d (id, v, symtype, symclass, dt, filen);

  }

}

int   symnoforstart

    PROTO_N ( (i, filen) )

    PROTO_T ( int i X int filen )

{

				/* output symbolno for start of proc */

  dec * ex = main_globals[i];

  short   symtype = (ex -> dec_u.dec_val.extnamed) ? stProc : stStaticProc;

  char *id = ex -> dec_u.dec_val.dec_id;

  diag_type dt = (diag_type)0;

  if (diagnose) {

    diag_descriptor * t = ex ->dec_u.dec_val.diag_info;

    if (t != (diag_descriptor *) 0) {

      id = t ->data.id.nme.ints.chars;

      dt = t -> data.id.new_type;

      filen = find_file(t ->data.id.whence.file->file.ints.chars);

    }

  }

  return new_lsym (id, symnos[i], symtype, scText, dt, filen);

}

int   symnoforend

    PROTO_N ( (ex, filen) )

    PROTO_T ( dec * ex X int filen )

{

				/* output symbolno for end of proc */

  char *id = ex -> dec_u.dec_val.dec_id;

  diag_type dt = (diag_type)0;

  if (diagnose) {

    diag_descriptor * t = ex ->dec_u.dec_val.diag_info;

    if (t != (diag_descriptor *) 0) {

      id = t -> data.id.nme.ints.chars;

      dt = t -> data.id.new_type;

      filen = find_file(t -> data.id.whence.file->file.ints.chars);

    }

  }

  return new_lsym_d (id, 0, stEnd, scText, dt, filen);

}

int   symnofordata

    PROTO_N ( (data_lab) )

    PROTO_T ( int data_lab )

{

				/* output symbol number for data_lab and

				   remember it in tempsnos */

  int   a = data_lab - 32;

  if (a >= no_temps) {

    tempsnos = (int *) xrealloc ((char *) tempsnos, (100 + a) * sizeof (int));

    no_temps = a + 100;

  }

  return (tempsnos[a] = add_dense_no (currentfile, 1048575 /* ???? */ ));

}