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/*

 * Copyright (c) 2002-2005 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) 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.

*/

/* sol86/diag_out.c */

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

$Author: release $

$Date: 1998/03/27 09:47:52 $

$Revision: 1.4 $

$Log: diag_out.c,v $

 * Revision 1.4  1998/03/27  09:47:52  release

 * Changes for 4.1.2 release.

 *

 * Revision 1.3  1998/03/11  11:03:13  pwe

 * DWARF optimisation info

 *

 * Revision 1.2  1998/02/04  15:50:10  pwe

 * STABS for void*

 *

 * Revision 1.1.1.1  1998/01/17  15:55:52  release

 * First version to be checked into rolling release.

 *

 * Revision 1.16  1998/01/09  14:47:49  pwe

 * prep restructure

 *

 * Revision 1.15  1997/08/23  13:46:04  pwe

 * initial ANDF-DE

 *

 * Revision 1.14  1997/04/02  10:33:43  pwe

 * diagnose pl_tests

 *

 * Revision 1.13  1997/03/20  16:24:35  pwe

 * dwarf2

 *

 * Revision 1.12  1997/02/18  11:43:25  pwe

 * NEWDIAGS for debugging optimised code

 *

 * Revision 1.11  1996/12/10  15:12:06  pwe

 * prep NEWDIAGS

 *

 * Revision 1.10  1996/07/05  09:07:56  pwe

 * correct stabs enums

 *

 * Revision 1.9  1996/05/09  17:30:53  pwe

 * shift invalidate_dest, and stabs postlude

 *

 * Revision 1.8  1996/03/13  13:43:35  pwe

 * diags for long long

 *

 * Revision 1.7  1995/12/22  09:34:35  pwe

 * solaris diags for stack objects

 *

 * Revision 1.6  1995/12/20  11:14:02  pwe

 * stabs local variable scopes

 *

 * Revision 1.5  1995/11/30  10:20:02  pwe

 * diag struct struct

 *

 * Revision 1.4  1995/03/29  09:45:08  pwe

 * empty file requires arbitrary name

 *

 * Revision 1.3  1995/03/28  14:28:57  pwe

 * correct diagnose empty file

 *

 * Revision 1.2  1995/03/22  19:02:58  pwe

 * add .file at start

 *

 * Revision 1.1  1995/03/17  18:31:27  pwe

 * stabs diagnostics for solaris and linux

 *

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

#include "config.h"

#include "common_types.h"

#include "basicread.h"

#include "out.h"

#include "machine.h"

#include "shapemacs.h"

#include "expmacs.h"

#include "tags.h"

#include "szs_als.h"

#include "xalloc.h"

#include "exp.h"

#include "externs.h"

#ifdef NEWDIAGS

#include "dg_types.h"

#include "dg_aux.h"

#include "dg_globs.h"

#include "codermacs.h"

#include "instr.h"

#else

#include "diagtypes.h"

#include "diag_fns.h"

#include "mark_scope.h"

#include "diagglob.h"

#endif

extern int locals_offset;	/* declared in cproc.c */

/*

    FORWARD DECLARATIONS

*/

#ifdef NEWDIAGS

static void stab_scope_open(dg_filename);

static void stab_scope_close(void);

static void stab_file(dg_filename);

static void stab_local(dg_name, int);

static void stab_types(void);

#else

static void stab_scope_open(long);

static void stab_scope_close(long);

static void stab_file(long, bool);

static void stab_local(diag_info *, int, exp);

static void stab_types(void);

#endif

/* label number sequence independent from text code */

static int diag_lab_no = 0;

static int

next_d_lab(void)

{

  return ++diag_lab_no;

}

/*

    DIAGNOSTICS FILE

*/

static FILE *dg_file;

#ifndef NEWDIAGS

static char *dg_file_name;

#endif

static void

d_outnl(void)

{

  /* avoids indicating completion of executable instruction */

  IGNORE fputs("\n", dg_file);

}

/*

    BASIC TYPE NUMBERS

*/

#define STAB_SCHAR	4

#define STAB_UCHAR	6

#define STAB_SSHRT	2

#define STAB_USHRT	3

#define STAB_SLONG	7

#define STAB_ULONG	9

#define STAB_SINT	1

#define STAB_UINT	8

#define STAB_FLOAT	10

#define STAB_DBL	11

#define STAB_LDBL	12

#define STAB_VOID	13

#define STAB_S64	14

#define STAB_U64	15

#define STAB_VS		16

#define NO_STABS	17

/*

    80x86 register numbers

*/

#ifdef NEWDIAGS

static long reg_stabno[8] = {0, 2, 1, 3, 7, 6, 5, 4};

#endif

/*

    BASIC POINTERS

*/

static long stab_ptrs[NO_STABS] = {

    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0

};

/*

    CURRENT TYPE NUMBER

*/

static long typeno;

/*

    SIZE OF LAST STAB TYPE OUTPUT

*/

static long last_type_sz = 0;

/*

    CURRENT LINE NUMBER AND FILE NUMBER

*/

long currentlno = -1;

#ifdef NEWDIAGS

dg_filename currentfile = (dg_filename)0;

dg_filename prim_file = (dg_filename)0;

#else

long currentfile = -1;

#endif

/*

    ARRAY OF TYPE SIZES

*/

static long *type_sizes;

static int total_type_sizes = 0;

/*

    SETTING AND GETTING TYPE SIZES

*/

#define set_stab_size(i)	type_sizes[(i)] = last_type_sz

#define get_stab_size(i)	(type_sizes[(i)])

#define shape_stab_size(i, s)	type_sizes[(i)] = shape_size(s)

/*

    GET THE NEXT TYPE NUMBER

*/

static long

next_typen(void)

{

    if (typeno >= total_type_sizes) {

	int i, n = total_type_sizes, m = n + 100;

	type_sizes = (long *)xrealloc((void *)(CH type_sizes),

				      (size_t)m * sizeof(long));

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

	    type_sizes[i] = 0;

	}

	total_type_sizes = m;

    }

    return(typeno++);

}

#ifndef NEWDIAGS

/*

    ARRAY OF FILE DESCRIPTORS

*/

static filename *fds = NULL;

static int szfds = 0;

static int nofds = 0;

/*

    ADD A NEW FILE TO THE ARRAY OF FILE DESCRIPTORS

*/

void

stab_collect_files(filename f)

{

    if (fds == NULL) {

	szfds += 10;

	fds = (filename *)xmalloc(szfds * sizeof(filename));

    } else if (nofds >= szfds) {

	szfds += 10;

	fds = (filename *)xrealloc((void *)(CH fds), szfds * sizeof(filename));

    }

    fds[nofds++] = f;

    return;

}

/*

    FIND THE FILE DESCRIPTOR CORRESPONDING TO A FILE NAME

*/

static long

find_file(char *f)

{

    long i;

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

	if (strcmp(f, fds[i]->file.ints.chars) == 0) {

	    return(i);

	}

    }

    return(0);

}

#endif

static int last_proc_cname;

static char *last_proc_pname = "<<No Proc>>";

static void

out_procname(void)

{

  if (last_proc_cname == -1) {

    outs(last_proc_pname);

  } else {

    outs(local_prefix);

    outn((long)last_proc_cname);

  }

}

/*

    OUTPUT A FILE POSITION CONSTRUCT

*/

#define N_SLINE 0x44

#define N_DSLINE 0x46

#define N_BSLINE 0x48

#define N_LBRAC  0xc0

#define N_RBRAC  0xe0

#ifdef NEWDIAGS

void

stabd(dg_filename f, long lno, int seg)

{

    long i;

    if (f == currentfile && lno == currentlno) {

	return;

    }

    stab_file(f);

    if (seg != 0) {		/* 0 suppresses always */

      if (seg > 0) {		/* -ve line nos are put out in the stabs */

	i = next_d_lab();

	IGNORE fprintf(dg_file, ".LL.%ld:\n", i);

	IGNORE fprintf(dg_file, "\t.stabn\t0x%x,0,%ld,.LL.%ld-", seg, lno, i);

	out_procname();

	d_outnl();

      }

    }

    currentlno = lno;

    return;

}

#else

static void

stabd(long findex, long lno, int seg)

{

    long i;

    if (findex == currentfile && lno == currentlno) {

	return;

    }

    stab_file(findex, 1);

    if (seg != 0) {		/* 0 suppresses always */

      if (seg > 0) {		/* -ve line nos are put out in the stabs */

	i = next_d_lab();

	IGNORE fprintf(dg_file, ".LL.%ld:\n", i);

	IGNORE fprintf(dg_file, "\t.stabn\t0x%x,0,%ld,.LL.%ld-", seg, lno, i);

	out_procname();

	d_outnl();

      }

    }

    currentlno = lno;

    return;

}

#endif

#ifdef NEWDIAGS

/*

    OUTPUT DIAGNOSTICS SURROUNDING CODE

*/

void

code_diag_info(dg_info d, void(*mcode)(void *), void *args)

{

  if (d == nildiag) {

   (*mcode)(args);

    return;

  }

  switch (d->key) {

    case DGA_PARAMS: {

      dg_name arg = d->data.i_param.args;

      while (arg) {

	stab_local(arg, 1);

	arg = arg->next;

      }

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

      break;

    }

    case DGA_SRC: {

      if (d->data.i_src.startpos.line) {

	stabd(d->data.i_src.startpos.file, d->data.i_src.startpos.line,

	      N_SLINE);

      }

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

      if (d->data.i_src.endpos.line)

	stabd(d->data.i_src.endpos.file, d->data.i_src.endpos.line, N_SLINE);

      break;

    }

    case DGA_SCOPE:

    case DGA_EXTRA: {

      dg_filename f = currentfile;

      long l = currentlno + 1;

      if (d->data.i_scope.lexpos.line) {

	f = d->data.i_scope.lexpos.file;

	l = d->data.i_scope.lexpos.line;

      }

      stab_scope_open(f);

      stabd(f, l, N_SLINE);

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

      stab_scope_close();

      if (d->data.i_scope.endpos.line) {

	stabd(d->data.i_scope.endpos.file, d->data.i_scope.endpos.line,

	      N_SLINE);

      }

      break;

    }

    case DGA_NAME: {

      stab_local(d->data.i_nam.dnam, 0);

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

      break;

    }

    default: {

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

      break;

    }

  }

  return;

}

#else

/*

    OUTPUT INITIAL DIAGNOSTICS FOR A DIAGNOSE_TAG

*/

void

output_diag(diag_info *d, int proc_no, exp e)

{

  if (d->key == DIAG_INFO_SOURCE) {

    sourcemark *s = &d->data.source.beg;

    long f = find_file(s->file->file.ints.chars);

    stabd(f, (long)s->line_no.nat_val.small_nat, N_SLINE);

    return;

  }

  if (d->key == DIAG_INFO_ID) {

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

    if (isglob(son(acc)) || no(son(acc)) == 1) {

	return;

    }

    mark_scope(e);

    if (props(e) & 0x80) {

      stab_scope_open(currentfile);

      stabd(currentfile, (long)(currentlno + 1), N_SLINE);

    }

    stab_local(d, proc_no, acc);

    return;

  }

}

/*

    OUTPUT FINAL DIAGNOSTICS FOR A DIAGNOSE_TAG

*/

void

output_end_scope(diag_info *d, exp e)

{

    if (d->key == DIAG_INFO_SOURCE) {

	sourcemark *s = &d->data.source.end;

	long f = find_file(s->file->file.ints.chars);

	long lno = s->line_no.nat_val.small_nat;

	stabd(f, lno, N_SLINE);

	return;

    }

    if (d->key == DIAG_INFO_ID && props(e) & 0x80) {

	stab_scope_close(currentfile);

	return;

    }

    return;

}

#endif

/*

    FIND THE STAB OF A SIMPLE SHAPE

*/

#ifdef NEWDIAGS

static long

out_sh_type(shape s, char *nm)

{

  last_type_sz = shape_size(s);

  switch (name(s)) {

    case scharhd: return(STAB_SCHAR);

    case ucharhd: return(STAB_UCHAR);

    case swordhd: return(STAB_SSHRT);

    case uwordhd: return(STAB_USHRT);

    case slonghd: return(strstr(nm, "long")? STAB_SLONG : STAB_SINT);

    case ulonghd: return(strstr(nm, "long")? STAB_ULONG : STAB_UINT);

    case s64hd: return(STAB_S64);

    case u64hd: return(STAB_U64);

    case shrealhd: return(STAB_FLOAT);

    case realhd: return(STAB_DBL);

    case doublehd: return(STAB_LDBL);

  }

  return(STAB_VOID);

}

static long

find_basic_type(char *s)

{

  char *x;

  if (strstr(s, "char")) {

    return(strstr(s, "unsigned") ? STAB_UCHAR : STAB_SCHAR);

  }

  if (strstr(s, "double")) {

    return(strstr(s, "long") ? STAB_LDBL : STAB_DBL);

  }

  if (strstr(s, "float")) {

    return(STAB_FLOAT);

  }

  if (strstr(s, "short")) {

    return(strstr(s, "unsigned") ? STAB_USHRT : STAB_SSHRT);

  }

  if ((x = strstr(s, "long"))) {

    if (strstr(x+1, "long")) {

      return(strstr(s, "unsigned") ? STAB_U64 : STAB_S64);

    }

    return(strstr(s, "unsigned") ? STAB_ULONG : STAB_SLONG);

  }

  if (strstr(s, "int")) {

    return(strstr(s, "unsigned") ? STAB_UINT : STAB_SINT);

  }

  if (strstr(s, "void_star")) {

    return(STAB_VS);

  }

  return(STAB_VOID);

}

#else

static long

out_sh_type(shape s)

{

    last_type_sz = shape_size(s);

    switch (name(s)) {

	case scharhd:

		return(STAB_SCHAR);

	case ucharhd:

		return(STAB_UCHAR);

	case swordhd:

		return(STAB_SSHRT);

	case uwordhd:

		return(STAB_USHRT);

	case slonghd:

		return(STAB_SINT);

	case ulonghd:

		return(STAB_UINT);

	case s64hd:

		return(STAB_S64);

	case u64hd:

		return(STAB_U64);

	case shrealhd:

		return(STAB_FLOAT);

	case realhd:

		return(STAB_DBL);

	case doublehd:

		return(STAB_LDBL);

    }

    return(STAB_VOID);

}

#endif

/*

    OUTPUT DIAGNOSTICS DIRECTIVE FOR A FILE

*/

#ifdef NEWDIAGS

static void

stab_file(dg_filename f)

{

    long i = next_d_lab();

    int stb;

    if (f == currentfile || !f) {

	return;

    }

    stb = (f == prim_file ? 0x64 : 0x84);

    IGNORE fprintf(dg_file, ".LL.%ld:\n", i);

    if (f->file_name[0]!= '/' && f->file_path[0]) {

      IGNORE fprintf(dg_file, "\t.stabs\t\"%s/\",0x%x,0,0,.LL.%ld\n",

		     f->file_path, stb, i);

    }

    IGNORE fprintf(dg_file, "\t.stabs\t\"%s\",0x%x,0,0,.LL.%ld\n",

		   f->file_name, stb, i);

    currentfile = f;

    return;

}

#else

static void

stab_file(long findex, bool internal)

{

    static long i = 0;

    if (findex == currentfile || findex < 0 || findex >= szfds) {

	return;

    }

    if (!internal) {

	/* source file */

	i = next_d_lab();

	IGNORE fprintf(dg_file, ".LL.%ld:\n", i);

	IGNORE fprintf(dg_file, "\t.stabs\t\"%s\",0x64,0,0,.LL.%ld\n",

		       fds[findex]->file.ints.chars, i);

    } else {

	/* included file */

	IGNORE fprintf(dg_file, "\t.stabs\t\"%s\",0x84,0,0,.LL.%ld\n",

		       fds[findex]->file.ints.chars, i);

    }

    currentfile = findex;

    return;

}

#endif

/*

    LIST OF DIAGNOSTIC SCOPES AND LOCAL VARIABLES

*/

#define DEL_SIZE 50

struct delay_stab {

    int del_t;

    union {

	struct {

	    char *nm;

#ifdef NEWDIAGS

	    dg_type dt;

#else

	    diag_type dt;

#endif

	    int offset;

	} l;

	struct {

	    int br;

	    int lev;

	    int lab;

	} b;

    } u;

};

enum del_types {D_PARAM, D_LOCAL, D_BRACKET, D_REG};

struct del_stab_array {

    struct del_stab_array *more;

    struct delay_stab a[DEL_SIZE];

};

static struct del_stab_array *del_stab_start = NULL;

static struct del_stab_array *last_del_array = NULL;

static struct del_stab_array *c_del_array = NULL;

static int c_del_index = DEL_SIZE;

static struct delay_stab *

next_del_stab(void)

{

    if (c_del_index == DEL_SIZE) {

	if (c_del_array != last_del_array) {

	    c_del_array = c_del_array->more;

	} else {

	    struct del_stab_array *s = (struct del_stab_array *)

		(xmalloc(sizeof(struct del_stab_array)));

	    s->more = NULL;

	    if (del_stab_start == NULL) {

		del_stab_start = s;

	    } else {

		last_del_array -> more = s;

	    }

	    c_del_array = last_del_array = s;

	}

	c_del_index = 0;

    }

    return((c_del_array -> a) + (c_del_index ++));

}

static long open_label = 0;

static long bracket_level = 0;

/*

    START OF A DIAGNOSTICS SCOPE

*/

#ifdef NEWDIAGS

static void

stab_scope_open(dg_filename f)

{

    long i;

    stab_file(f);

    if (open_label != 0) {

	struct delay_stab *t = next_del_stab();

	t->del_t = D_BRACKET;

	t->u.b.br = N_LBRAC;

	t->u.b.lev = bracket_level;