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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 10:43:37 $

$Revision: 1.2 $

$Log: dwarf_info.c,v $

 * Revision 1.2  1998/02/04  10:43:37  release

 * Changes during testing.

 *

 * Revision 1.1.1.1  1998/01/17  15:55:47  release

 * First version to be checked into rolling release.

 *

 * Revision 1.4  1997/06/02  08:28:44  pwe

 * correction re NEWDIAGS

 *

 * Revision 1.3  1997/02/19  12:53:41  pwe

 * NEWDIAGS for debugging optimised code

 *

 * Revision 1.2  1995/09/28  12:39:37  pwe

 * dwarf.h via import, and type changes for tcc checks

 *

 * Revision 1.1.1.1  1995/08/14  14:30:21  pwe

 * transferred from DJCH

 *

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

/* LOG 4 July 1994 added dwarf_types.h to unify with sparc version */

/* LOG 6/9/93 changes for sparc/ICL port of SVR4.2 djch

 comment char is not #... introduced COMMENT_2 macros */

/* LOG 25/11/93 removed redundant expr_buf djch */

#include "config.h"

#include "common_types.h"

#include "readglob.h"

#include "table_fns.h"

#include "basicread.h"

#include "sortmacs.h"

/* machine dep headers */

#include "out.h"

#include "expmacs.h"

#include "tags.h"

#include "main_reads.h"

#include "check.h"

#include "main_reads.h"

#include "dwarf_types.h"

#include "dwarf_type.h"

#include "dwarf_out.h"

#include "diag_fns.h"

#include "dwarf_loc.h"

#include "dwarf_queue.h"

#include "dwarf_mc.h"

#include "mark_scope.h"

#include "cross_config.h"

#ifdef NEWDIAGS

#include "tags.h"

#endif

#ifndef CROSS_INCLUDE

#include <dwarf.h>

#else

#include CROSS_INCLUDE/dwarf.h>

#endif

int continue_decs;

static long lex_blk_stk_ptr = -1;

static dwarf_label lex_blk_stk[100];

#define PUSH_LEX_BLK (&lex_blk_stk[++lex_blk_stk_ptr])

#define POP_LEX_BLK  (&lex_blk_stk[lex_blk_stk_ptr--])

#define TOS_LEX_BLK  (&lex_blk_stk[lex_blk_stk_ptr])

#define CHK_LEX_STK  if (lex_blk_stk_ptr < -1) failer("lex stk underflow")

static void out_dwarf_start_scope

    PROTO_N ( (l) )

    PROTO_T ( dwarf_label *l )

{

  char expr_buf[100];

  if (lex_blk_stk_ptr == -1)

    return;

  sprintf(expr_buf,"%s - %s",LAB2CHAR(l->beg), LAB2CHAR(TOS_LEX_BLK->beg));

  OUT_DWARF_ATTR(AT_start_scope);

  dwarf4(expr_buf);

}

#ifdef NEWDIAGS

static void comment_end_scope

    PROTO_N ( (d) )

    PROTO_T ( diag_info * d )

{

  char expr_buf[100];

  sprintf(expr_buf,COMMENT_2("\t","\tEND diag_info key %d"),d->key);

  outs(expr_buf);

  outs("\n");	/* avoid 80x86 outnl which has side effect */

}

void code_diag_info

    PROTO_N ( (d, proc_no, mcode, args) )

    PROTO_T ( diag_info * d X int proc_no X void (*mcode)(void *) X void * args )

{

  if (d == nildiag) {

    (*mcode)(args);

    return;

  }

  switch (d->key) {

    case DIAG_INFO_SCOPE: {

      next_dwarf_lab(PUSH_LEX_BLK);

      OUT_DWARF_BEG(TOS_LEX_BLK);

      cont_sib_chain(TAG_lexical_block);

      OUT_DWARF_ATTR(AT_low_pc);

      dwarf4(LAB2CHAR(TOS_LEX_BLK->beg));

      OUT_DWARF_ATTR(AT_high_pc);

      dwarf4(LAB2CHAR(TOS_LEX_BLK->end));

      leave_dwarf_blk();

      make_next_new_chain();

      code_diag_info (d->more, proc_no, mcode, args);

      OUT_DWARF_END(POP_LEX_BLK);

      CHK_LEX_STK;

      end_sib_chain();

      return;

    }

    case DIAG_INFO_SOURCE: {

      out_dwarf_sourcemark(&(d->data.source.beg));

      code_diag_info (d->more, proc_no, mcode, args);

      comment_end_scope (d);

      return;

    }

    case DIAG_INFO_ID: {

      exp x = d->data.id_scope.access;

      dwarf_label tlab;

      next_dwarf_lab(&tlab);

      OUT_DWARF_BEG(&tlab);	/* always needed for start_scope */

      while (1) {

	if (name(x) != hold_tag)

	{

	  failer("access should be in hold");

	  break;

	};

	x = son(x);

	if (name(x) == cont_tag && name(son(x)) == name_tag && isvar(son(son(x))))

	  x = son(x);

	if ((name(x) != name_tag || isdiscarded(x))

		&& name(x) != val_tag && name(x) != null_tag )

	{

	  break;	/* should do better ! */

	};

	if ((base_type(d->data.id_scope.typ))->key == DIAG_TYPE_INITED)

	{

	  fprintf(stderr,"ERROR: %s has no diagtype... omitting\n",

		  TDFSTRING2CHAR(d->data.id_scope.nme));

	  break;

	}

	if (name(x) == name_tag && isglob(son(x)))

	{

	  if (brog(son(x))->dec_u.dec_val.extnamed)

	    break;

	  else			/* static; goes out as local */

	  {

	    cont_sib_chain(TAG_local_variable);

	    out_dwarf_start_scope(&tlab); /* only for local vars */

	  }

	}

	else

	  if (name(x) == name_tag && isparam(son(x)))

	    cont_sib_chain(TAG_formal_parameter);

	  else

	  {

	    cont_sib_chain(TAG_local_variable);

	    out_dwarf_start_scope(&tlab);	/* only for local vars */

	  };

	out_dwarf_name_attr(TDFSTRING2CHAR(d->data.id_scope.nme));

	out_dwarf_type_attr(d->data.id_scope.typ);

	if (!out_dwarf_loc_attr(x,proc_no))

	  fprintf(stderr,"Unable to generate location info for variable '%s'\n",

		  TDFSTRING2CHAR(d->data.id_scope.nme));

	leave_dwarf_blk();

	dump_type_q();

        break;

      }

      code_diag_info (d->more, proc_no, mcode, args);

      comment_end_scope (d);

      return;

    }

    case DIAG_INFO_TYPE: {

      dwarf_label tlab;

      next_dwarf_lab(&tlab);

      OUT_DWARF_BEG(&tlab);	/* always needed for start_scope */

      cont_sib_chain(TAG_typedef);

      out_dwarf_start_scope(&tlab);

      out_dwarf_name_attr(TDFSTRING2CHAR(d->data.type_scope.nme));

      out_dwarf_type_attr(d->data.type_scope.typ);

      leave_dwarf_blk();

      code_diag_info (d->more, proc_no, mcode, args);

      comment_end_scope (d);

      return;

    }

    failer("Illegal key in output_diag");

    fprintf(stderr,"key was %d\n",d->key);

    code_diag_info (d->more, proc_no, mcode, args);

  }

}

#else

void output_diag

    PROTO_N ( (d, proc_no, e) )

    PROTO_T ( diag_info * d X int proc_no X exp e )

{

  if(d->key == DIAG_INFO_SOURCE)

  {

    out_dwarf_sourcemark(&(d->data.source.beg));

    return;

  }

  {

    dwarf_label tlab;

    mark_scope(e);

    if (props(e) & 0x80)

    {

      next_dwarf_lab(PUSH_LEX_BLK);

      OUT_DWARF_BEG(TOS_LEX_BLK);

      cont_sib_chain(TAG_lexical_block);

      OUT_DWARF_ATTR(AT_low_pc);

      dwarf4(LAB2CHAR(TOS_LEX_BLK->beg));

      OUT_DWARF_ATTR(AT_high_pc);

      dwarf4(LAB2CHAR(TOS_LEX_BLK->end));

      leave_dwarf_blk();

      make_next_new_chain();

    };

    next_dwarf_lab(&tlab);

    OUT_DWARF_BEG(&tlab);	/* always needed for start_scope */

    switch (d->key)

    {

     case DIAG_INFO_ID:

      {

	exp x = d->data.id_scope.access;

	if (name(x) != name_tag)

	{

	  failer("diagnosing non-identifier");

	  return;

	};

	if ((base_type(d->data.id_scope.typ))->key == DIAG_TYPE_INITED)

	{

	  fprintf(stderr,"ERROR: %s %s has no diagtype... omitting\n",

		  isparam(son(x)) ? "Formal parameter" : "Local variable",

		  TDFSTRING2CHAR(d->data.id_scope.nme));

	  break;

	}

	if (isglob(son(x)))

	{

	  if (brog(son(x))->dec_u.dec_val.extnamed)

	    break;

	  else			/* static; goes out as local */

	  {

	    cont_sib_chain(TAG_local_variable);

	    out_dwarf_start_scope(&tlab); /* only for local vars */

	  }

	}

	else

	  if (isparam(son(x)))

	    cont_sib_chain(TAG_formal_parameter);

	  else

	  {

	    cont_sib_chain(TAG_local_variable);

	    out_dwarf_start_scope(&tlab);	/* only for local vars */

	  };

	out_dwarf_name_attr(TDFSTRING2CHAR(d->data.id_scope.nme));

	out_dwarf_type_attr(d->data.id_scope.typ);

	if (!out_dwarf_loc_attr(x,proc_no))

	  fprintf(stderr,"Unable to generate location info for variable '%s'\n",

		  TDFSTRING2CHAR(d->data.id_scope.nme));

	leave_dwarf_blk();

	dump_type_q();

      }

      break;

     case DIAG_INFO_TYPE:

      cont_sib_chain(TAG_typedef);

      out_dwarf_start_scope(&tlab);

      out_dwarf_name_attr(TDFSTRING2CHAR(d->data.type_scope.nme));

      out_dwarf_type_attr(d->data.type_scope.typ);

      leave_dwarf_blk();

      break;

     case DIAG_INFO_TAG:

      fprintf(stderr,"diag_info_tag named %s\n",

	      TDFSTRING2CHAR(d->data.tag_scope.nme));

      if (!strcmp(TDFSTRING2CHAR(d->data.tag_scope.nme),

		  TDFSTRING2CHAR(d->data.tag_scope.typ->data.t_struct.nme)))

      {

	fprintf(stderr,"diag type gives name as %s\n",

		TDFSTRING2CHAR(d->data.tag_scope.typ->data.t_struct.nme));

	failer("different names in output_diag");

      }

      out_dwarf_user_type(d->data.tag_scope.typ);

      break;

     default:

      failer("Illegal key in output_diag");

      fprintf(stderr,"key was %d\n",d->key);

    }

  }

}

void output_end_scope

    PROTO_N ( (d,e) )

    PROTO_T ( diag_info * d X exp e )

{

  char expr_buf[100];

  sprintf(expr_buf,COMMENT_2("\t","\tEND diag_info key %d"),d->key);

  outs(expr_buf);

  outnl();

  if (d -> key != DIAG_INFO_SOURCE && props(e) & 0x80)

  {

    OUT_DWARF_END(POP_LEX_BLK);

    CHK_LEX_STK;

    end_sib_chain();

  }

}

#endif