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/*

 * Copyright (c) 2002-2006 The TenDRA Project <http://www.tendra.org/>.

 * 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. Neither the name of The TenDRA Project 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDERS 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.

 *

 * $Id$

 */

/*

    		 Crown Copyright (c) 1996

    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.

*/

/*

			    VERSION INFORMATION

			    ===================

--------------------------------------------------------------------------

$Header: /u/g/release/CVSROOT/Source/src/installers/680x0/common/xdb_basics.c,v 1.1.1.1 1998/01/17 15:55:50 release Exp $

--------------------------------------------------------------------------

$Log: xdb_basics.c,v $

 * Revision 1.1.1.1  1998/01/17  15:55:50  release

 * First version to be checked into rolling release.

 *

Revision 1.1.1.1  1997/10/13 12:43:02  ma

First version.

Revision 1.2  1997/03/20 12:53:13  ma

Removed warning.

Revision 1.1.1.1  1997/03/14 07:50:22  ma

Imported from DRA

 * Revision 1.1.1.1  1996/09/20  10:57:01  john

 *

 * Revision 1.2  1996/07/05  14:33:46  john

 * Fix to diagnostics

 *

 * Revision 1.1  95/03/08  16:46:19  ra

 * Added missing files.

 *

 * Revision 1.1  93/02/22  17:17:20  17:17:20  ra (Robert Andrews)

 * Initial revision

 *

--------------------------------------------------------------------------

*/

#include "config.h"

#include "common_types.h"

#include "codex.h"

#include "diag_fns.h"

#include "diagglob.h"

#include "expmacs.h"

#include "instrs.h"

#include "mach.h"

#include "mach_ins.h"

#include "mach_op.h"

#include "mark_scope.h"

#include "output.h"

#include "xdb_types.h"

#include "xdb_basics.h"

#include "xdb_output.h"

#include "stab_types.h"

/*

    DIAGNOSTICS INITIALIZATION ROUTINE

*/

void

diag_prologue(void)

{

	init_diag();

	return;

}

/*

    DIAGNOSTICS TERMINATION ROUTINE

*/

void

diag_epilogue(void)

{

	while (dnt_end()) {

		; /* empty */

	}

	if (diag_format == DIAG_STAB) {

		mach_op *op = make_extern_data("Letext", 0);

		area(ptext);

		make_stabs("\"\"", 100, 0, op);

		make_external_label("Letext");

	}

	output_all();

	copy_diag();

	return;

}

/*

    OUTPUT A DIAGNOSTICS SOURCE MARK

*/

static void

diag_mark(sourcemark *sm)

{

	char *nm = sm->file->file.ints.chars;

	long ln = sm->line_no.nat_val.small_nat;

	diag_source(nm, ln, 1);

	return;

}

/*

    DIAGNOSTICS FOR A LOCAL VARIABLE

*/

static void

diag_variable(diag_info *di, exp e)

{

	exp s = di->data.id_scope.access;

	diag_type t = di->data.id_scope.typ;

	char *nm = di->data.id_scope.nme.ints.chars;

	long p = (no(s) + no(son(s))) / 8;

	if (!isparam(son(s))) {

		diag_local_variable(t, nm, p);

	}

	return;

}

/*

    START OF A DIAGNOSTICS ITEM

*/

void

diag_start(diag_info *di, exp e)

{

	switch (di->key) {

	case DIAG_INFO_SOURCE: {

		sourcemark *sm = &(di->data.source.beg);

		diag_mark(sm);

		break;

	}

	case DIAG_INFO_ID:

		mark_scope(e);

		if (props(e) & 0x80) {

			dnt_begin();

		}

		if (diag_format != DIAG_XDB_NEW) {

			diag_variable(di, e);

		}

		break;

	default:

		break;

	}

	return;

}

/*

    END OF A DIAGNOSTICS ITEM

*/

void

diag_end(diag_info *di, exp e)

{

	if (di->key == DIAG_INFO_ID) {

		if (diag_format == DIAG_XDB_NEW) {

			diag_variable(di, e);

		}

		if (props(e) & 0x80) {

			dnt_end();

		}

	}

	return;

}

/*

    DIAGNOSTICS FOR THE START OF A PROCEDURE

*/

void

xdb_diag_proc_begin(diag_global *di, exp p, char *pname, long cname,

		    int is_ext)

{

	char *nm = di->data.id.nme.ints.chars;

	diag_type t = di->data.id.new_type;

	sourcemark *sm = & (di->data.id.whence);

	diag_proc_main(t, p, nm, !is_local(pname), pname);

	diag_mark(sm);

	return;

}

/*

    DIAGNOSTICS FOR THE RETURN STATEMENT OF A PROCEDURE

*/

void

xdb_diag_proc_return(void)

{

	if (diag_format == DIAG_XDB_NEW) {

		slt_exit();

	}

	return;

}

/*

    DIAGNOSTICS FOR THE END OF A PROCEDURE

*/

void

xdb_diag_proc_end(diag_global *di)

{

	area(ptext);

	if (diag_format == DIAG_XDB_NEW) {

		mach_op *op1 = make_lab_data(crt_diag_proc_lab, 0);

		mach_op *op2 = make_extern_data(".-1", 0);

		make_instr(m_as_assign, op1, op2, 0);

	} else if (diag_format == DIAG_XDB_OLD) {

		make_label(crt_diag_proc_lab);

	}

	dnt_end();

	area(plast);

	return;

}

/*

    DIAGNOSTICS FOR THE START OF A VALUE

*/

void

xdb_diag_val_begin(diag_global *di, char *pname, long cname, int is_ext)

{

	char *nm = di->data.id.nme.ints.chars;

	diag_type t = di->data.id.new_type;

	diag_globl_variable(t, nm, !is_local(pname), pname, 1);

	return;

}

/*

    OUTPUT GLOBAL TABLE

*/

void

OUTPUT_GLOBALS_TAB(void)

{

	diag_descriptor *di = unit_diagvar_tab.array;

	unsigned long i, n = unit_diagvar_tab.lastused;

	for (i = 0; i < n; i++) {

		if (di[i].key == DIAG_TYPEDEF_KEY) {

			diag_type d = di[i].data.typ.new_type;

			char *nm = di[i].data.typ.nme.ints.chars;

			diag_type_defn(nm, d);

		}

	}

	return;

}

/*

    OUTPUT ALL DIAGNOSTIC TAGS

*/

void

OUTPUT_DIAG_TAGS(void)

{

	return;

}

/*

    INSPECT FILENAME

*/

void

INSPECT_FILENAME(filename fn)

{

	char *nm = fn->file.ints.chars;

	diag_source(nm, 1, 0);

	return;

}

/*

    COMPARE TWO DECLARATIONS

*/

static bool

cmp_dec(dec *x, dec *y)

{

	int c;

	long lx, ly;

	char *fx, *fy;

	sourcemark *sx, *sy;

	diag_global *dx = x->dec_u.dec_val.diag_info;

	diag_global *dy = y->dec_u.dec_val.diag_info;

	if (dy == null || dy->key != DIAG_ID_KEY) {

		return (0);

	}

	if (dx == null || dx->key != DIAG_ID_KEY) {

		return (1);

	}

	sx = & (dx->data.id.whence);

	fx = sx->file->file.ints.chars;

	lx = sx->line_no.nat_val.small_nat;

	sy = & (dy->data.id.whence);

	fy = sy->file->file.ints.chars;

	ly = sy->line_no.nat_val.small_nat;

	c = strcmp((char *)sx, (char *)sy);

	if (c < 0) {

		return (0);

	}

	if (c > 0) {

		return (1);

	}

	return (lx > ly ? 1 : 0);

}

/*

    SORT DECLARATION INTO ORDER

*/

dec *

sort_decs(dec *p)

{

	dec *res = null;

	dec *x = p, *y;

	while (x != null) {

		dec *nextx = x->def_next;

		dec *before = null;

		for (y = res; y != null; y = y->def_next) {

			if (!cmp_dec(x, y)) {

				break;

			}

			before = y;

		}

		if (before == null) {

			x->def_next = res;

			res = x;

		} else {

			x->def_next = before->def_next;

			before->def_next = x;

		}

		x = nextx;

	}

	return (res);

}