1/* srconv.c -- Sysroff conversion program
2   Copyright 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
3   2005, 2007 Free Software Foundation, Inc.
4
5   This file is part of GNU Binutils.
6
7   This program is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 2 of the License, or
10   (at your option) any later version.
11
12   This program is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with this program; if not, write to the Free Software
19   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
20   02110-1301, USA.  */
21
22/* Written by Steve Chamberlain (sac@cygnus.com)
23
24   This program can be used to convert a coff object file
25   into a Hitachi OM/LM (Sysroff) format.
26
27   All debugging information is preserved */
28
29#include "sysdep.h"
30#include "bfd.h"
31#include "bucomm.h"
32#include "sysroff.h"
33#include "coffgrok.h"
34#include "libiberty.h"
35#include "getopt.h"
36
37#include "coff/internal.h"
38#include "../bfd/libcoff.h"
39
40/*#define FOOP1 1 */
41
42static int addrsize;
43static char *toolname;
44static char **rnames;
45
46static int get_member_id (int);
47static int get_ordinary_id (int);
48static char *section_translate (char *);
49static char *strip_suffix (char *);
50static void checksum (FILE *, unsigned char *, int, int);
51static void writeINT (int, unsigned char *, int *, int, FILE *);
52static void writeBITS (int, unsigned char *, int *, int);
53static void writeBARRAY (barray, unsigned char *, int *, int, FILE *);
54static void writeCHARS (char *, unsigned char *, int *, int, FILE *);
55static void wr_tr (void);
56static void wr_un (struct coff_ofile *, struct coff_sfile *, int, int);
57static void wr_hd (struct coff_ofile *);
58static void wr_sh (struct coff_ofile *, struct coff_section *);
59static void wr_ob (struct coff_ofile *, struct coff_section *);
60static void wr_rl (struct coff_ofile *, struct coff_section *);
61static void wr_object_body (struct coff_ofile *);
62static void wr_dps_start
63  (struct coff_sfile *, struct coff_section *, struct coff_scope *, int, int);
64static void wr_dps_end (struct coff_section *, struct coff_scope *, int);
65static int *nints (int);
66static void walk_tree_type_1
67  (struct coff_sfile *, struct coff_symbol *, struct coff_type *, int);
68static void walk_tree_type
69  (struct coff_sfile *, struct coff_symbol *, struct coff_type *, int);
70static void walk_tree_symbol
71  (struct coff_sfile *, struct coff_section *, struct coff_symbol *, int);
72static void walk_tree_scope
73  (struct coff_section *, struct coff_sfile *, struct coff_scope *, int, int);
74static void walk_tree_sfile (struct coff_section *, struct coff_sfile *);
75static void wr_program_structure (struct coff_ofile *, struct coff_sfile *);
76static void wr_du (struct coff_ofile *, struct coff_sfile *, int);
77static void wr_dus (struct coff_ofile *, struct coff_sfile *);
78static int find_base (struct coff_sfile *, struct coff_section *);
79static void wr_dln (struct coff_ofile *, struct coff_sfile *, int);
80static void wr_globals (struct coff_ofile *, struct coff_sfile *, int);
81static void wr_debug (struct coff_ofile *);
82static void wr_cs (void);
83static int wr_sc (struct coff_ofile *, struct coff_sfile *);
84static void wr_er (struct coff_ofile *, struct coff_sfile *, int);
85static void wr_ed (struct coff_ofile *, struct coff_sfile *, int);
86static void wr_unit_info (struct coff_ofile *);
87static void wr_module (struct coff_ofile *);
88static int align (int);
89static void prescan (struct coff_ofile *);
90static void show_usage (FILE *, int);
91extern int main (int, char **);
92
93static FILE *file;
94static bfd *abfd;
95static int debug = 0;
96static int quick = 0;
97static int noprescan = 0;
98static struct coff_ofile *tree;
99/* Obsolete ??
100   static int absolute_p;
101 */
102
103static int segmented_p;
104static int code;
105
106static int ids1[20000];
107static int ids2[20000];
108
109static int base1 = 0x18;
110static int base2 = 0x2018;
111
112static int
113get_member_id (int x)
114{
115  if (ids2[x])
116    return ids2[x];
117
118  ids2[x] = base2++;
119  return ids2[x];
120}
121
122static int
123get_ordinary_id (int x)
124{
125  if (ids1[x])
126    return ids1[x];
127
128  ids1[x] = base1++;
129  return ids1[x];
130}
131static char *
132section_translate (char *n)
133{
134  if (strcmp (n, ".text") == 0)
135    return "P";
136  if (strcmp (n, ".data") == 0)
137    return "D";
138  if (strcmp (n, ".bss") == 0)
139    return "B";
140  return n;
141}
142
143#define DATE "940201073000";	/* Just a time on my birthday */
144
145static
146char *
147strip_suffix (char *name)
148{
149  int i;
150  char *res;
151
152  for (i = 0; name[i] != 0 && name[i] != '.'; i++)
153    ;
154  res = (char *) xmalloc (i + 1);
155  memcpy (res, name, i);
156  res[i] = 0;
157  return res;
158}
159
160/* IT LEN stuff CS */
161static void
162checksum (FILE *file, unsigned char *ptr, int size, int code)
163{
164  int j;
165  int last;
166  int sum = 0;
167  int bytes = size / 8;
168
169  last = !(code & 0xff00);
170  if (size & 0x7)
171    abort ();
172  ptr[0] = code | (last ? 0x80 : 0);
173  ptr[1] = bytes + 1;
174
175  for (j = 0; j < bytes; j++)
176    sum += ptr[j];
177
178  /* Glue on a checksum too.  */
179  ptr[bytes] = ~sum;
180  fwrite (ptr, bytes + 1, 1, file);
181}
182
183
184static void
185writeINT (int n, unsigned char *ptr, int *idx, int size, FILE *file)
186{
187  int byte = *idx / 8;
188
189  if (size == -2)
190    size = addrsize;
191  else if (size == -1)
192    size = 0;
193
194  if (byte > 240)
195    {
196      /* Lets write out that record and do another one.  */
197      checksum (file, ptr, *idx, code | 0x1000);
198      *idx = 16;
199      byte = *idx / 8;
200    }
201
202  switch (size)
203    {
204    case 0:
205      break;
206    case 1:
207      ptr[byte] = n;
208      break;
209    case 2:
210      ptr[byte + 0] = n >> 8;
211      ptr[byte + 1] = n;
212      break;
213    case 4:
214      ptr[byte + 0] = n >> 24;
215      ptr[byte + 1] = n >> 16;
216      ptr[byte + 2] = n >> 8;
217      ptr[byte + 3] = n >> 0;
218      break;
219    default:
220      abort ();
221    }
222  *idx += size * 8;
223}
224
225static void
226writeBITS (int val, unsigned char *ptr, int *idx, int size)
227{
228  int byte = *idx / 8;
229  int bit = *idx % 8;
230  int old;
231
232  *idx += size;
233
234  old = ptr[byte];
235  /* Turn off all about to change bits.  */
236  old &= ~((~0 >> (8 - bit - size)) & ((1 << size) - 1));
237  /* Turn on the bits we want.  */
238  old |= (val & ((1 << size) - 1)) << (8 - bit - size);
239  ptr[byte] = old;
240}
241
242static void
243writeBARRAY (barray data, unsigned char *ptr, int *idx,
244	     int size ATTRIBUTE_UNUSED, FILE *file)
245{
246  int i;
247
248  writeINT (data.len, ptr, idx, 1, file);
249  for (i = 0; i < data.len; i++)
250    writeINT (data.data[i], ptr, idx, 1, file);
251}
252
253static void
254writeCHARS (char *string, unsigned char *ptr, int *idx, int size, FILE *file)
255{
256  int i = *idx / 8;
257
258  if (i > 240)
259    {
260      /* Lets write out that record and do another one.  */
261      checksum (file, ptr, *idx, code | 0x1000);
262      *idx = 16;
263      i = *idx / 8;
264    }
265
266  if (size == 0)
267    {
268      /* Variable length string.  */
269      size = strlen (string);
270      ptr[i++] = size;
271    }
272
273  /* BUG WAITING TO HAPPEN.  */
274  memcpy (ptr + i, string, size);
275  i += size;
276  *idx = i * 8;
277}
278
279#define SYSROFF_SWAP_OUT
280#include "sysroff.c"
281
282static char *rname_sh[] =
283{
284  "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", "R8", "R9", "R10", "R11", "R12", "R13", "R14", "R15"
285};
286
287static char *rname_h8300[] =
288{
289  "ER0", "ER1", "ER2", "ER3", "ER4", "ER5", "ER6", "ER7", "PC", "CCR"
290};
291
292static void
293wr_tr (void)
294{
295  /* The TR block is not normal - it doesn't have any contents.  */
296
297  static char b[] =
298    {
299      0xff,			/* IT */
300      0x03,			/* RL */
301      0xfd,			/* CS */
302    };
303  fwrite (b, 1, sizeof (b), file);
304}
305
306static void
307wr_un (struct coff_ofile *ptr, struct coff_sfile *sfile, int first,
308       int nsecs ATTRIBUTE_UNUSED)
309{
310  struct IT_un un;
311  struct coff_symbol *s;
312
313  un.spare1 = 0;
314
315  if (bfd_get_file_flags (abfd) & EXEC_P)
316    un.format = FORMAT_LM;
317  else
318    un.format = FORMAT_OM;
319  un.spare1 = 0;
320
321  /* Don't count the abs section.  */
322  un.nsections = ptr->nsections - 1;
323
324  un.nextdefs = 0;
325  un.nextrefs = 0;
326  /* Count all the undefined and defined variables with global scope.  */
327
328  if (first)
329    {
330      for (s = ptr->symbol_list_head; s; s = s->next_in_ofile_list)
331	{
332	  if (s->visible->type == coff_vis_ext_def
333	      || s->visible->type == coff_vis_common)
334	    un.nextdefs++;
335
336	  if (s->visible->type == coff_vis_ext_ref)
337	    un.nextrefs++;
338	}
339    }
340  un.tool = toolname;
341  un.tcd = DATE;
342  un.linker = "L_GX00";
343  un.lcd = DATE;
344  un.name = sfile->name;
345  sysroff_swap_un_out (file, &un);
346}
347
348static void
349wr_hd (struct coff_ofile *p)
350{
351  struct IT_hd hd;
352
353  hd.spare1 = 0;
354  if (bfd_get_file_flags (abfd) & EXEC_P)
355    hd.mt = MTYPE_ABS_LM;
356  else
357    hd.mt = MTYPE_OMS_OR_LMS;
358
359  hd.cd = DATE;
360
361  hd.nu = p->nsources;		/* Always one unit */
362  hd.code = 0;			/* Always ASCII */
363  hd.ver = "0200";		/* Version 2.00 */
364
365  switch (bfd_get_arch (abfd))
366    {
367    case bfd_arch_h8300:
368      hd.au = 8;
369      hd.si = 0;
370      hd.spcsz = 32;
371      hd.segsz = 0;
372      hd.segsh = 0;
373      switch (bfd_get_mach (abfd))
374	{
375	case bfd_mach_h8300:
376	  hd.cpu = "H8300";
377	  hd.afl = 2;
378	  addrsize = 2;
379	  toolname = "C_H8/300";
380	  break;
381	case bfd_mach_h8300h:
382	  hd.cpu = "H8300H";
383	  hd.afl = 4;
384	  addrsize = 4;
385	  toolname = "C_H8/300H";
386	  break;
387	case bfd_mach_h8300s:
388	  hd.cpu = "H8300S";
389	  hd.afl = 4;
390	  addrsize = 4;
391	  toolname = "C_H8/300S";
392	  break;
393	default:
394	  abort();
395	}
396      rnames = rname_h8300;
397      break;
398    case bfd_arch_sh:
399      hd.au = 8;
400      hd.si = 0;
401      hd.afl = 4;
402      hd.spcsz = 32;
403      hd.segsz = 0;
404      hd.segsh = 0;
405      hd.cpu = "SH";
406      addrsize = 4;
407      toolname = "C_SH";
408      rnames = rname_sh;
409      break;
410    default:
411      abort ();
412    }
413
414  if (! bfd_get_file_flags(abfd) & EXEC_P)
415    {
416      hd.ep = 0;
417    }
418  else
419    {
420      hd.ep = 1;
421      hd.uan = 0;
422      hd.sa = 0;
423      hd.sad = 0;
424      hd.address = bfd_get_start_address (abfd);
425    }
426
427  hd.os = "";
428  hd.sys = "";
429  hd.mn = strip_suffix (bfd_get_filename (abfd));
430
431  sysroff_swap_hd_out (file, &hd);
432}
433
434
435static void
436wr_sh (struct coff_ofile *p ATTRIBUTE_UNUSED, struct coff_section *sec)
437{
438  struct IT_sh sh;
439  sh.unit = 0;
440  sh.section = sec->number;
441#ifdef FOOP1
442  sh.section = 0;
443#endif
444  sysroff_swap_sh_out (file, &sh);
445}
446
447
448static void
449wr_ob (struct coff_ofile *p ATTRIBUTE_UNUSED, struct coff_section *section)
450{
451  bfd_size_type i;
452  int first = 1;
453  unsigned char stuff[200];
454
455  i = 0;
456  while (i < bfd_get_section_size (section->bfd_section))
457    {
458      struct IT_ob ob;
459      int todo = 200;		/* Copy in 200 byte lumps.  */
460
461      ob.spare = 0;
462      if (i + todo > bfd_get_section_size (section->bfd_section))
463	todo = bfd_get_section_size (section->bfd_section) - i;
464
465      if (first)
466	{
467	  ob.saf = 1;
468	  if (bfd_get_file_flags (abfd) & EXEC_P)
469	    ob.address = section->address;
470	  else
471	    ob.address = 0;
472
473	  first = 0;
474	}
475      else
476	{
477	  ob.saf = 0;
478	}
479
480      ob.cpf = 0;		/* Never compress.  */
481      ob.data.len = todo;
482      bfd_get_section_contents (abfd, section->bfd_section, stuff, i, todo);
483      ob.data.data = stuff;
484      sysroff_swap_ob_out (file, &ob /*, i + todo < section->size */ );
485      i += todo;
486    }
487
488  /* Now fill the rest with blanks.  */
489  while (i < (bfd_size_type) section->size)
490    {
491      struct IT_ob ob;
492      int todo = 200;		/* Copy in 200 byte lumps.  */
493
494      ob.spare = 0;
495      if (i + todo > (bfd_size_type) section->size)
496	todo = section->size - i;
497      ob.saf = 0;
498
499      ob.cpf = 0;		/* Never compress.  */
500      ob.data.len = todo;
501      memset (stuff, 0, todo);
502      ob.data.data = stuff;
503      sysroff_swap_ob_out (file, &ob);
504      i += todo;
505    }
506  /* Now fill the rest with blanks.  */
507}
508
509static void
510wr_rl (struct coff_ofile *ptr ATTRIBUTE_UNUSED, struct coff_section *sec)
511{
512  int nr = sec->nrelocs;
513  int i;
514
515  for (i = 0; i < nr; i++)
516    {
517      struct coff_reloc *r = sec->relocs + i;
518      struct coff_symbol *ref;
519      struct IT_rl rl;
520
521      rl.apol = 0;
522      rl.boundary = 0;
523      rl.segment = 1;
524      rl.sign = 0;
525      rl.check = 0;
526      rl.addr = r->offset;
527      rl.bitloc = 0;
528      rl.flen = 32;		/* SH Specific.  */
529
530      /* What sort of reloc ? Look in the section to find out.  */
531      ref = r->symbol;
532      if (ref->visible->type == coff_vis_ext_ref)
533	{
534	  rl.bcount = 4;	/* Always 4 for us.  */
535	  rl.op = OP_EXT_REF;
536	  rl.symn = ref->er_number;
537	}
538      else if (ref->visible->type == coff_vis_common)
539	{
540	  rl.bcount = 11;	/* Always 11 for us.  */
541	  rl.op = OP_SEC_REF;
542	  rl.secn = ref->where->section->number;
543	  rl.copcode_is_3 = 3;
544	  rl.alength_is_4 = 4;
545	  rl.addend = ref->where->offset - ref->where->section->address;
546	  rl.aopcode_is_0x20 = 0x20;
547	}
548      else
549	{
550	  rl.bcount = 11;	/* Always 11 for us.  */
551	  rl.op = OP_SEC_REF;
552	  rl.secn = ref->where->section->number;
553	  rl.copcode_is_3 = 3;
554	  rl.alength_is_4 = 4;
555	  rl.addend = -ref->where->section->address;
556	  rl.aopcode_is_0x20 = 0x20;
557	}
558
559      rl.end = 0xff;
560
561      if (   rl.op == OP_SEC_REF
562	  || rl.op == OP_EXT_REF)
563	sysroff_swap_rl_out (file, &rl);
564    }
565}
566
567static void
568wr_object_body (struct coff_ofile *p)
569{
570  int i;
571
572  for (i = 1; i < p->nsections; i++)
573    {
574      wr_sh (p, p->sections + i);
575      wr_ob (p, p->sections + i);
576      wr_rl (p, p->sections + i);
577    }
578}
579
580static void
581wr_dps_start (struct coff_sfile *sfile,
582	      struct coff_section *section ATTRIBUTE_UNUSED,
583	      struct coff_scope *scope, int type, int nest)
584{
585  struct IT_dps dps;
586
587  dps.end = 0;
588  dps.opt = 0;
589  dps.type = type;
590
591  if (scope->sec)
592    {
593      dps.san = scope->sec->number;
594      dps.address = scope->offset - find_base (sfile, scope->sec);
595      dps.block_size = scope->size;
596
597      if (debug)
598	{
599	  printf ("DPS %s %d %x\n",
600		  sfile->name,
601		  nest,
602		  dps.address);
603	}
604    }
605  else
606    {
607      dps.san = 0;
608      dps.address = 0;
609      dps.block_size = 0;
610    }
611
612  dps.nesting = nest;
613  dps.neg = 0x1001;
614  sysroff_swap_dps_out (file, &dps);
615}
616
617static void
618wr_dps_end (struct coff_section *section ATTRIBUTE_UNUSED,
619	    struct coff_scope *scope ATTRIBUTE_UNUSED, int type)
620{
621  struct IT_dps dps;
622
623  dps.end = 1;
624  dps.type = type;
625  sysroff_swap_dps_out (file, &dps);
626}
627
628static int *
629nints (int x)
630{
631  return (int *) (xcalloc (sizeof (int), x));
632}
633
634static void
635walk_tree_type_1 (struct coff_sfile *sfile, struct coff_symbol *symbol,
636		  struct coff_type *type, int nest)
637{
638  switch (type->type)
639    {
640    case coff_secdef_type:
641    case coff_basic_type:
642      {
643	struct IT_dbt dbt;
644
645	switch (type->u.basic)
646	  {
647	  case T_NULL:
648	  case T_VOID:
649	    dbt.btype = BTYPE_VOID;
650	    dbt.sign = BTYPE_UNSPEC;
651	    dbt.fptype = FPTYPE_NOTSPEC;
652	    break;
653
654	  case T_CHAR:
655	    dbt.btype = BTYPE_CHAR;
656	    dbt.sign = BTYPE_UNSPEC;
657	    dbt.fptype = FPTYPE_NOTSPEC;
658	    break;
659
660	  case T_SHORT:
661	  case T_INT:
662	  case T_LONG:
663	    dbt.btype = BTYPE_INT;
664	    dbt.sign = SIGN_SIGNED;
665	    dbt.fptype = FPTYPE_NOTSPEC;
666	    break;
667
668	  case T_FLOAT:
669	    dbt.btype = BTYPE_FLOAT;
670	    dbt.fptype = FPTYPE_SINGLE;
671	    break;
672
673	  case T_DOUBLE:
674	    dbt.btype = BTYPE_FLOAT;
675	    dbt.fptype = FPTYPE_DOUBLE;
676	    break;
677
678	  case T_LNGDBL:
679	    dbt.btype = BTYPE_FLOAT;
680	    dbt.fptype = FPTYPE_EXTENDED;
681	    break;
682
683	  case T_UCHAR:
684	    dbt.btype = BTYPE_CHAR;
685	    dbt.sign = SIGN_UNSIGNED;
686	    dbt.fptype = FPTYPE_NOTSPEC;
687	    break;
688
689	  case T_USHORT:
690	  case T_UINT:
691	  case T_ULONG:
692	    dbt.btype = BTYPE_INT;
693	    dbt.sign = SIGN_UNSIGNED;
694	    dbt.fptype = FPTYPE_NOTSPEC;
695	    break;
696	  }
697
698	dbt.bitsize = type->size;
699	dbt.neg = 0x1001;
700	sysroff_swap_dbt_out (file, &dbt);
701	break;
702      }
703
704    case coff_pointer_type:
705      {
706	struct IT_dpt dpt;
707
708	dpt.dunno = 0;
709	walk_tree_type_1 (sfile, symbol, type->u.pointer.points_to, nest + 1);
710	dpt.neg = 0x1001;
711	sysroff_swap_dpt_out (file, &dpt);
712	break;
713      }
714
715    case coff_function_type:
716      {
717	struct IT_dfp dfp;
718	struct coff_symbol *param;
719
720	dfp.end = 0;
721	dfp.spare = 0;
722	dfp.nparams = type->u.function.parameters->nvars;
723	dfp.neg = 0x1001;
724
725	walk_tree_type_1 (sfile, symbol, type->u.function.function_returns, nest + 1);
726
727	sysroff_swap_dfp_out (file, &dfp);
728
729	for (param = type->u.function.parameters->vars_head;
730	     param;
731	     param = param->next)
732	  walk_tree_symbol (sfile, 0, param, nest);
733
734	dfp.end = 1;
735	sysroff_swap_dfp_out (file, &dfp);
736	break;
737      }
738
739    case coff_structdef_type:
740      {
741	struct IT_dbt dbt;
742	struct IT_dds dds;
743	struct coff_symbol *member;
744
745	dds.spare = 0;
746	dbt.btype = BTYPE_STRUCT;
747	dbt.bitsize = type->size;
748	dbt.sign = SIGN_UNSPEC;
749	dbt.fptype = FPTYPE_NOTSPEC;
750	dbt.sid = get_member_id (type->u.astructdef.idx);
751	dbt.neg = 0x1001;
752	sysroff_swap_dbt_out (file, &dbt);
753	dds.end = 0;
754	dds.neg = 0x1001;
755	sysroff_swap_dds_out (file, &dds);
756
757	for (member = type->u.astructdef.elements->vars_head;
758	     member;
759	     member = member->next)
760	  walk_tree_symbol (sfile, 0, member, nest + 1);
761
762	dds.end = 1;
763	sysroff_swap_dds_out (file, &dds);
764
765      }
766      break;
767
768    case coff_structref_type:
769      {
770	struct IT_dbt dbt;
771
772	dbt.btype = BTYPE_TAG;
773	dbt.bitsize = type->size;
774	dbt.sign = SIGN_UNSPEC;
775	dbt.fptype = FPTYPE_NOTSPEC;
776
777	if (type->u.astructref.ref)
778	  dbt.sid = get_member_id (type->u.astructref.ref->number);
779	else
780	  dbt.sid = 0;
781
782	dbt.neg = 0x1001;
783	sysroff_swap_dbt_out (file, &dbt);
784      }
785      break;
786
787    case coff_array_type:
788      {
789	struct IT_dar dar;
790	int j;
791	int dims = 1;		/* Only output one dimension at a time.  */
792
793	dar.dims = dims;
794	dar.variable = nints (dims);
795	dar.subtype = nints (dims);
796	dar.spare = nints (dims);
797	dar.max_variable = nints (dims);
798	dar.maxspare = nints (dims);
799	dar.max = nints (dims);
800	dar.min_variable = nints (dims);
801	dar.min = nints (dims);
802	dar.minspare = nints (dims);
803	dar.neg = 0x1001;
804	dar.length = type->size / type->u.array.dim;
805
806	for (j = 0; j < dims; j++)
807	  {
808	    dar.variable[j] = VARIABLE_FIXED;
809	    dar.subtype[j] = SUB_INTEGER;
810	    dar.spare[j] = 0;
811	    dar.max_variable[j] = 0;
812	    dar.max[j] = type->u.array.dim;
813	    dar.min_variable[j] = 0;
814	    dar.min[j] = 1;	/* Why isn't this 0 ? */
815	  }
816	walk_tree_type_1 (sfile, symbol, type->u.array.array_of, nest + 1);
817	sysroff_swap_dar_out (file, &dar);
818      }
819      break;
820
821    case coff_enumdef_type:
822      {
823	struct IT_dbt dbt;
824	struct IT_den den;
825	struct coff_symbol *member;
826
827	dbt.btype = BTYPE_ENUM;
828	dbt.bitsize = type->size;
829	dbt.sign = SIGN_UNSPEC;
830	dbt.fptype = FPTYPE_NOTSPEC;
831	dbt.sid = get_member_id (type->u.aenumdef.idx);
832	dbt.neg = 0x1001;
833	sysroff_swap_dbt_out (file, &dbt);
834
835	den.end = 0;
836	den.neg = 0x1001;
837	den.spare = 0;
838	sysroff_swap_den_out (file, &den);
839
840	for (member = type->u.aenumdef.elements->vars_head;
841	     member;
842	     member = member->next)
843	  walk_tree_symbol (sfile, 0, member, nest + 1);
844
845	den.end = 1;
846	sysroff_swap_den_out (file, &den);
847      }
848      break;
849
850    case coff_enumref_type:
851      {
852	struct IT_dbt dbt;
853
854	dbt.btype = BTYPE_TAG;
855	dbt.bitsize = type->size;
856	dbt.sign = SIGN_UNSPEC;
857	dbt.fptype = FPTYPE_NOTSPEC;
858	dbt.sid = get_member_id (type->u.aenumref.ref->number);
859	dbt.neg = 0x1001;
860	sysroff_swap_dbt_out (file, &dbt);
861      }
862      break;
863
864    default:
865      abort ();
866    }
867}
868
869/* Obsolete ?
870   static void
871   dty_start ()
872   {
873   struct IT_dty dty;
874   dty.end = 0;
875   dty.neg = 0x1001;
876   dty.spare = 0;
877   sysroff_swap_dty_out (file, &dty);
878   }
879
880   static void
881   dty_stop ()
882   {
883   struct IT_dty dty;
884   dty.end = 0;
885   dty.neg = 0x1001;
886   dty.end = 1;
887   sysroff_swap_dty_out (file, &dty);
888   }
889
890
891   static void
892   dump_tree_structure (sfile, symbol, type, nest)
893   struct coff_sfile *sfile;
894   struct coff_symbol *symbol;
895   struct coff_type *type;
896   int nest;
897   {
898   if (symbol->type->type == coff_function_type)
899   {
900
901
902   }
903
904   }
905 */
906
907static void
908walk_tree_type (struct coff_sfile *sfile, struct coff_symbol *symbol,
909		struct coff_type *type, int nest)
910{
911  if (symbol->type->type == coff_function_type)
912    {
913      struct IT_dty dty;
914
915      dty.end = 0;
916      dty.neg = 0x1001;
917
918      sysroff_swap_dty_out (file, &dty);
919      walk_tree_type_1 (sfile, symbol, type, nest);
920      dty.end = 1;
921      sysroff_swap_dty_out (file, &dty);
922
923      wr_dps_start (sfile,
924		    symbol->where->section,
925		    symbol->type->u.function.code,
926		    BLOCK_TYPE_FUNCTION, nest);
927      wr_dps_start (sfile, symbol->where->section,
928		    symbol->type->u.function.code,
929		    BLOCK_TYPE_BLOCK, nest);
930      walk_tree_scope (symbol->where->section,
931		       sfile,
932		       symbol->type->u.function.code,
933		       nest + 1, BLOCK_TYPE_BLOCK);
934
935      wr_dps_end (symbol->where->section,
936		  symbol->type->u.function.code,
937		  BLOCK_TYPE_BLOCK);
938      wr_dps_end (symbol->where->section,
939		  symbol->type->u.function.code, BLOCK_TYPE_FUNCTION);
940    }
941  else
942    {
943      struct IT_dty dty;
944
945      dty.end = 0;
946      dty.neg = 0x1001;
947      sysroff_swap_dty_out (file, &dty);
948      walk_tree_type_1 (sfile, symbol, type, nest);
949      dty.end = 1;
950      sysroff_swap_dty_out (file, &dty);
951    }
952}
953
954static void
955walk_tree_symbol (struct coff_sfile *sfile, struct coff_section *section ATTRIBUTE_UNUSED, struct coff_symbol *symbol, int nest)
956{
957  struct IT_dsy dsy;
958
959  memset (&dsy, 0, sizeof(dsy));
960  dsy.nesting = nest;
961
962  switch (symbol->type->type)
963    {
964    case coff_function_type:
965      dsy.type = STYPE_FUNC;
966      dsy.assign = 1;
967      break;
968
969    case coff_structref_type:
970    case coff_pointer_type:
971    case coff_array_type:
972    case coff_basic_type:
973    case coff_enumref_type:
974      dsy.type = STYPE_VAR;
975      dsy.assign = 1;
976      break;
977
978    case coff_enumdef_type:
979      dsy.type = STYPE_TAG;
980      dsy.assign = 0;
981      dsy.magic = 2;
982      break;
983
984    case coff_structdef_type:
985      dsy.type = STYPE_TAG;
986      dsy.assign = 0;
987      dsy.magic = symbol->type->u.astructdef.isstruct ? 0 : 1;
988      break;
989
990    case coff_secdef_type:
991      return;
992
993    default:
994      abort ();
995    }
996
997  if (symbol->where->where == coff_where_member_of_struct)
998    {
999      dsy.assign = 0;
1000      dsy.type = STYPE_MEMBER;
1001    }
1002
1003  if (symbol->where->where == coff_where_member_of_enum)
1004    {
1005      dsy.type = STYPE_ENUM;
1006      dsy.assign = 0;
1007      dsy.evallen = 4;
1008      dsy.evalue = symbol->where->offset;
1009    }
1010
1011  if (symbol->type->type == coff_structdef_type
1012      || symbol->where->where == coff_where_entag
1013      || symbol->where->where == coff_where_strtag)
1014    {
1015      dsy.snumber = get_member_id (symbol->number);
1016    }
1017  else
1018    {
1019      dsy.snumber = get_ordinary_id (symbol->number);
1020    }
1021
1022  dsy.sname = symbol->name[0] == '_' ? symbol->name + 1 : symbol->name;
1023
1024  switch (symbol->visible->type)
1025    {
1026    case coff_vis_common:
1027    case coff_vis_ext_def:
1028      dsy.ainfo = AINFO_STATIC_EXT_DEF;
1029      break;
1030
1031    case coff_vis_ext_ref:
1032      dsy.ainfo = AINFO_STATIC_EXT_REF;
1033      break;
1034
1035    case coff_vis_int_def:
1036      dsy.ainfo = AINFO_STATIC_INT;
1037      break;
1038
1039    case coff_vis_auto:
1040    case coff_vis_autoparam:
1041      dsy.ainfo = AINFO_AUTO;
1042      break;
1043
1044    case coff_vis_register:
1045    case coff_vis_regparam:
1046      dsy.ainfo = AINFO_REG;
1047      break;
1048      break;
1049
1050    case coff_vis_tag:
1051    case coff_vis_member_of_struct:
1052    case coff_vis_member_of_enum:
1053      break;
1054
1055    default:
1056      abort ();
1057    }
1058
1059  dsy.dlength = symbol->type->size;
1060
1061  switch (symbol->where->where)
1062    {
1063    case coff_where_memory:
1064
1065      dsy.section = symbol->where->section->number;
1066#ifdef FOOP
1067      dsy.section = 0;
1068#endif
1069      break;
1070
1071    case coff_where_member_of_struct:
1072    case coff_where_member_of_enum:
1073    case coff_where_stack:
1074    case coff_where_register:
1075    case coff_where_unknown:
1076    case coff_where_strtag:
1077    case coff_where_entag:
1078    case coff_where_typedef:
1079      break;
1080
1081    default:
1082      abort ();
1083    }
1084
1085  switch (symbol->where->where)
1086    {
1087    case coff_where_memory:
1088      dsy.address = symbol->where->offset - find_base (sfile, symbol->where->section);
1089      break;
1090
1091    case coff_where_stack:
1092      dsy.address = symbol->where->offset;
1093      break;
1094
1095    case coff_where_member_of_struct:
1096      if (symbol->where->bitsize)
1097	{
1098	  int bits = (symbol->where->offset * 8 + symbol->where->bitoffset);
1099	  dsy.bitunit = 1;
1100	  dsy.field_len = symbol->where->bitsize;
1101	  dsy.field_off = (bits / 32) * 4;
1102	  dsy.field_bitoff = bits % 32;
1103	}
1104      else
1105	{
1106	  dsy.bitunit = 0;
1107
1108	  dsy.field_len = symbol->type->size;
1109	  dsy.field_off = symbol->where->offset;
1110	}
1111      break;
1112
1113    case coff_where_member_of_enum:
1114      /*      dsy.bitunit = 0;
1115         dsy.field_len  = symbol->type->size;
1116         dsy.field_off = symbol->where->offset; */
1117      break;
1118
1119    case coff_where_register:
1120    case coff_where_unknown:
1121    case coff_where_strtag:
1122    case coff_where_entag:
1123    case coff_where_typedef:
1124      break;
1125
1126    default:
1127      abort ();
1128    }
1129
1130  if (symbol->where->where == coff_where_register)
1131    dsy.reg = rnames[symbol->where->offset];
1132
1133  switch (symbol->visible->type)
1134    {
1135    case coff_vis_common:
1136      /* We do this 'cause common C symbols are treated as extdefs.  */
1137    case coff_vis_ext_def:
1138    case coff_vis_ext_ref:
1139      dsy.ename = symbol->name;
1140      break;
1141
1142    case coff_vis_regparam:
1143    case coff_vis_autoparam:
1144      dsy.type = STYPE_PARAMETER;
1145      break;
1146
1147    case coff_vis_int_def:
1148    case coff_vis_auto:
1149    case coff_vis_register:
1150    case coff_vis_tag:
1151    case coff_vis_member_of_struct:
1152    case coff_vis_member_of_enum:
1153      break;
1154
1155    default:
1156      abort ();
1157    }
1158
1159  dsy.sfn = 0;
1160  dsy.sln = 2;
1161  dsy.neg = 0x1001;
1162
1163  sysroff_swap_dsy_out (file, &dsy);
1164
1165  walk_tree_type (sfile, symbol, symbol->type, nest);
1166}
1167
1168static void
1169walk_tree_scope (struct coff_section *section, struct coff_sfile *sfile, struct coff_scope *scope, int nest, int type)
1170{
1171  struct coff_symbol *vars;
1172  struct coff_scope *child;
1173
1174  if (scope->vars_head
1175      || (scope->list_head && scope->list_head->vars_head))
1176    {
1177      wr_dps_start (sfile, section, scope, type, nest);
1178
1179      if (nest == 0)
1180	wr_globals (tree, sfile, nest + 1);
1181
1182      for (vars = scope->vars_head; vars; vars = vars->next)
1183	walk_tree_symbol (sfile, section, vars, nest);
1184
1185      for (child = scope->list_head; child; child = child->next)
1186	walk_tree_scope (section, sfile, child, nest + 1, BLOCK_TYPE_BLOCK);
1187
1188      wr_dps_end (section, scope, type);
1189    }
1190}
1191
1192static void
1193walk_tree_sfile (struct coff_section *section, struct coff_sfile *sfile)
1194{
1195  walk_tree_scope (section, sfile, sfile->scope, 0, BLOCK_TYPE_COMPUNIT);
1196}
1197
1198static void
1199wr_program_structure (struct coff_ofile *p, struct coff_sfile *sfile)
1200{
1201  walk_tree_sfile (p->sections + 4, sfile);
1202}
1203
1204static void
1205wr_du (struct coff_ofile *p, struct coff_sfile *sfile, int n)
1206{
1207  struct IT_du du;
1208  int lim;
1209  int i;
1210  int j;
1211  unsigned int *lowest = (unsigned *) nints (p->nsections);
1212  unsigned int *highest = (unsigned *) nints (p->nsections);
1213
1214  du.format = bfd_get_file_flags (abfd) & EXEC_P ? 0 : 1;
1215  du.optimized = 0;
1216  du.stackfrmt = 0;
1217  du.spare = 0;
1218  du.unit = n;
1219  du.sections = p->nsections - 1;
1220  du.san = (int *) xcalloc (sizeof (int), du.sections);
1221  du.address = nints (du.sections);
1222  du.length = nints (du.sections);
1223
1224  for (i = 0; i < du.sections; i++)
1225    {
1226      lowest[i] = ~0;
1227      highest[i] = 0;
1228    }
1229
1230  lim = du.sections;
1231  for (j = 0; j < lim; j++)
1232    {
1233      int src = j;
1234      int dst = j;
1235
1236      du.san[dst] = dst;
1237
1238      if (sfile->section[src].init)
1239	{
1240	  du.length[dst]
1241	    = sfile->section[src].high - sfile->section[src].low + 1;
1242	  du.address[dst]
1243	    = sfile->section[src].low;
1244	}
1245      else
1246	{
1247	  du.length[dst] = 0;
1248	  du.address[dst] = 0;
1249	}
1250
1251      if (debug)
1252	{
1253	  if (sfile->section[src].parent)
1254	    {
1255	      printf (" section %6s 0x%08x..0x%08x\n",
1256		      sfile->section[src].parent->name,
1257		      du.address[dst],
1258		      du.address[dst] + du.length[dst] - 1);
1259	    }
1260	}
1261
1262      du.sections = dst + 1;
1263    }
1264
1265  du.tool = "c_gcc";
1266  du.date = DATE;
1267
1268  sysroff_swap_du_out (file, &du);
1269}
1270
1271static void
1272wr_dus (struct coff_ofile *p ATTRIBUTE_UNUSED, struct coff_sfile *sfile)
1273{
1274  struct IT_dus dus;
1275
1276  dus.efn = 0x1001;
1277  dus.ns = 1;			/* p->nsources; sac 14 jul 94 */
1278  dus.drb = nints (dus.ns);
1279  dus.fname = (char **) xcalloc (sizeof (char *), dus.ns);
1280  dus.spare = nints (dus.ns);
1281  dus.ndir = 0;
1282  /* Find the filenames.  */
1283  dus.drb[0] = 0;
1284  dus.fname[0] = sfile->name;
1285
1286  sysroff_swap_dus_out (file, &dus);
1287
1288}
1289
1290/* Find the offset of the .text section for this sfile in the
1291   .text section for the output file.  */
1292
1293static int
1294find_base (struct coff_sfile *sfile, struct coff_section *section)
1295{
1296  return sfile->section[section->number].low;
1297}
1298
1299static void
1300wr_dln (struct coff_ofile *p ATTRIBUTE_UNUSED, struct coff_sfile *sfile,
1301	int n ATTRIBUTE_UNUSED)
1302{
1303  /* Count up all the linenumbers */
1304
1305  struct coff_symbol *sy;
1306  int lc = 0;
1307  struct IT_dln dln;
1308
1309  int idx;
1310
1311  for (sy = sfile->scope->vars_head;
1312       sy;
1313       sy = sy->next)
1314    {
1315      struct coff_type *t = sy->type;
1316      if (t->type == coff_function_type)
1317	{
1318	  struct coff_line *l = t->u.function.lines;
1319	  if (l)
1320	    lc += l->nlines;
1321	}
1322    }
1323
1324  dln.sfn = nints (lc);
1325  dln.sln = nints (lc);
1326  dln.cc = nints (lc);
1327  dln.section = nints (lc);
1328
1329  dln.from_address = nints (lc);
1330  dln.to_address = nints (lc);
1331
1332
1333  dln.neg = 0x1001;
1334
1335  dln.nln = lc;
1336
1337  /* Run through once more and fill up the structure */
1338  idx = 0;
1339  for (sy = sfile->scope->vars_head;
1340       sy;
1341       sy = sy->next)
1342    {
1343      if (sy->type->type == coff_function_type)
1344	{
1345	  int i;
1346	  struct coff_line *l = sy->type->u.function.lines;
1347	  if (l)
1348	    {
1349	      int base = find_base (sfile, sy->where->section);
1350	      for (i = 0; i < l->nlines; i++)
1351		{
1352		  dln.section[idx] = sy->where->section->number;
1353		  dln.sfn[idx] = 0;
1354		  dln.sln[idx] = l->lines[i];
1355		  dln.from_address[idx] =
1356		    l->addresses[i] + sy->where->section->address - base;
1357		  dln.cc[idx] = 0;
1358		  if (idx)
1359		    dln.to_address[idx - 1] = dln.from_address[idx];
1360		  idx++;
1361
1362		}
1363	      dln.to_address[idx - 1] = dln.from_address[idx - 1] + 2;
1364	    }
1365	}
1366    }
1367  if (lc)
1368    sysroff_swap_dln_out (file, &dln);
1369}
1370
1371/* Write the global symbols out to the debug info.  */
1372
1373static void
1374wr_globals (struct coff_ofile *p, struct coff_sfile *sfile,
1375	    int n ATTRIBUTE_UNUSED)
1376{
1377  struct coff_symbol *sy;
1378
1379  for (sy = p->symbol_list_head;
1380       sy;
1381       sy = sy->next_in_ofile_list)
1382    {
1383      if (sy->visible->type == coff_vis_ext_def
1384	  || sy->visible->type == coff_vis_ext_ref)
1385	{
1386	  /* Only write out symbols if they belong to
1387	     the current source file.  */
1388	  if (sy->sfile == sfile)
1389	    walk_tree_symbol (sfile, 0, sy, 0);
1390	}
1391    }
1392}
1393
1394static void
1395wr_debug (struct coff_ofile *p)
1396{
1397  struct coff_sfile *sfile;
1398  int n = 0;
1399
1400  for (sfile = p->source_head;
1401       sfile;
1402       sfile = sfile->next)
1403    {
1404      if (debug)
1405	printf ("%s\n", sfile->name);
1406
1407      wr_du (p, sfile, n);
1408      wr_dus (p, sfile);
1409      wr_program_structure (p, sfile);
1410      wr_dln (p, sfile, n);
1411      n++;
1412    }
1413}
1414
1415static void
1416wr_cs (void)
1417{
1418  /* It seems that the CS struct is not normal - the size is wrong
1419     heres one I prepared earlier.  */
1420  static char b[] =
1421    {
1422    0x80,			/* IT */
1423    0x21,			/* RL */
1424    0x00,			/* number of chars in variable length part */
1425    0x80,			/* hd */
1426    0x00,			/* hs */
1427    0x80,			/* un */
1428    0x00,			/* us */
1429    0x80,			/* sc */
1430    0x00,			/* ss */
1431    0x80,			/* er */
1432    0x80,			/* ed */
1433    0x80,			/* sh */
1434    0x80,			/* ob */
1435    0x80,			/* rl */
1436    0x80,			/* du */
1437    0x80,			/* dps */
1438    0x80,			/* dsy */
1439    0x80,			/* dty */
1440    0x80,			/* dln */
1441    0x80,			/* dso */
1442    0x80,			/* dus */
1443    0x00,			/* dss */
1444    0x80,			/* dbt */
1445    0x00,			/* dpp */
1446    0x80,			/* dfp */
1447    0x80,			/* den */
1448    0x80,			/* dds */
1449    0x80,			/* dar */
1450    0x80,			/* dpt */
1451    0x00,			/* dul */
1452    0x00,			/* dse */
1453    0x00,			/* dot */
1454    0xDE			/* CS */
1455  };
1456  fwrite (b, 1, sizeof (b), file);
1457}
1458
1459/* Write out the SC records for a unit.  Create an SC
1460   for all the sections which appear in the output file, even
1461   if there isn't an equivalent one on the input.  */
1462
1463static int
1464wr_sc (struct coff_ofile *ptr, struct coff_sfile *sfile)
1465{
1466  int i;
1467  int scount = 0;
1468  /* First work out the total number of sections.  */
1469  int total_sec = ptr->nsections;
1470  struct myinfo
1471    {
1472      struct coff_section *sec;
1473      struct coff_symbol *symbol;
1474    };
1475  struct coff_symbol *symbol;
1476  struct myinfo *info
1477    = (struct myinfo *) calloc (total_sec, sizeof (struct myinfo));
1478
1479
1480  for (i = 0; i < total_sec; i++)
1481    {
1482      info[i].sec = ptr->sections + i;
1483      info[i].symbol = 0;
1484    }
1485
1486  for (symbol = sfile->scope->vars_head;
1487       symbol;
1488       symbol = symbol->next)
1489    {
1490
1491      if (symbol->type->type == coff_secdef_type)
1492	{
1493	  for (i = 0; i < total_sec; i++)
1494	    {
1495	      if (symbol->where->section == info[i].sec)
1496		{
1497		  info[i].symbol = symbol;
1498		  break;
1499		}
1500	    }
1501	}
1502    }
1503
1504  /* Now output all the section info, and fake up some stuff for sections
1505     we don't have.  */
1506  for (i = 1; i < total_sec; i++)
1507    {
1508      struct IT_sc sc;
1509      char *name;
1510
1511      symbol = info[i].symbol;
1512      sc.spare = 0;
1513      sc.spare1 = 0;
1514
1515      if (!symbol)
1516	{
1517	  /* Don't have a symbol set aside for this section, which means
1518	     that nothing in this file does anything for the section.  */
1519	  sc.format = !(bfd_get_file_flags (abfd) & EXEC_P);
1520	  sc.addr = 0;
1521	  sc.length = 0;
1522	  name = info[i].sec->name;
1523	}
1524      else
1525	{
1526	  if (bfd_get_file_flags (abfd) & EXEC_P)
1527	    {
1528	      sc.format = 0;
1529	      sc.addr = symbol->where->offset;
1530	    }
1531	  else
1532	    {
1533	      sc.format = 1;
1534	      sc.addr = 0;
1535	    }
1536	  sc.length = symbol->type->size;
1537	  name = symbol->name;
1538	}
1539
1540      sc.align = 4;
1541      sc.concat = CONCAT_SIMPLE;
1542      sc.read = 3;
1543      sc.write = 3;
1544      sc.exec = 3;
1545      sc.init = 3;
1546      sc.mode = 3;
1547      sc.spare = 0;
1548      sc.segadd = 0;
1549      sc.spare1 = 0;		/* If not zero, then it doesn't work.  */
1550      sc.name = section_translate (name);
1551
1552      if (strlen (sc.name) == 1)
1553	{
1554	  switch (sc.name[0])
1555	    {
1556	    case 'D':
1557	    case 'B':
1558	      sc.contents = CONTENTS_DATA;
1559	      break;
1560
1561	    default:
1562	      sc.contents = CONTENTS_CODE;
1563	    }
1564	}
1565      else
1566	{
1567	  sc.contents = CONTENTS_CODE;
1568	}
1569
1570      sysroff_swap_sc_out (file, &sc);
1571      scount++;
1572    }
1573  return scount;
1574}
1575
1576/* Write out the ER records for a unit.  */
1577
1578static void
1579wr_er (struct coff_ofile *ptr, struct coff_sfile *sfile ATTRIBUTE_UNUSED,
1580       int first)
1581{
1582  int idx = 0;
1583  struct coff_symbol *sym;
1584
1585  if (first)
1586    {
1587      for (sym = ptr->symbol_list_head; sym; sym = sym->next_in_ofile_list)
1588	{
1589	  if (sym->visible->type == coff_vis_ext_ref)
1590	    {
1591	      struct IT_er er;
1592
1593	      er.spare = 0;
1594	      er.type = ER_NOTSPEC;
1595	      er.name = sym->name;
1596	      sysroff_swap_er_out (file, &er);
1597	      sym->er_number = idx++;
1598	    }
1599	}
1600    }
1601}
1602
1603/* Write out the ED records for a unit.  */
1604
1605static void
1606wr_ed (struct coff_ofile *ptr, struct coff_sfile *sfile ATTRIBUTE_UNUSED,
1607       int first)
1608{
1609  struct coff_symbol *s;
1610
1611  if (first)
1612    {
1613      for (s = ptr->symbol_list_head; s; s = s->next_in_ofile_list)
1614	{
1615	  if (s->visible->type == coff_vis_ext_def
1616	      || s->visible->type == coff_vis_common)
1617	    {
1618	      struct IT_ed ed;
1619
1620	      ed.section = s->where->section->number;
1621	      ed.spare = 0;
1622
1623	      if (s->where->section->data)
1624		{
1625		  ed.type = ED_TYPE_DATA;
1626		}
1627	      else if (s->where->section->code & SEC_CODE)
1628		{
1629		  ed.type = ED_TYPE_ENTRY;
1630		}
1631	      else
1632		{
1633		  ed.type = ED_TYPE_NOTSPEC;
1634		  ed.type = ED_TYPE_DATA;
1635		}
1636
1637	      ed.address = s->where->offset - s->where->section->address;
1638	      ed.name = s->name;
1639	      sysroff_swap_ed_out (file, &ed);
1640	    }
1641	}
1642    }
1643}
1644
1645static void
1646wr_unit_info (struct coff_ofile *ptr)
1647{
1648  struct coff_sfile *sfile;
1649  int first = 1;
1650
1651  for (sfile = ptr->source_head;
1652       sfile;
1653       sfile = sfile->next)
1654    {
1655      long p1;
1656      long p2;
1657      int nsecs;
1658
1659      p1 = ftell (file);
1660      wr_un (ptr, sfile, first, 0);
1661      nsecs = wr_sc (ptr, sfile);
1662      p2 = ftell (file);
1663      fseek (file, p1, SEEK_SET);
1664      wr_un (ptr, sfile, first, nsecs);
1665      fseek (file, p2, SEEK_SET);
1666      wr_er (ptr, sfile, first);
1667      wr_ed (ptr, sfile, first);
1668      first = 0;
1669    }
1670}
1671
1672static void
1673wr_module (struct coff_ofile *p)
1674{
1675  wr_cs ();
1676  wr_hd (p);
1677  wr_unit_info (p);
1678  wr_object_body (p);
1679  wr_debug (p);
1680  wr_tr ();
1681}
1682
1683static int
1684align (int x)
1685{
1686  return (x + 3) & ~3;
1687}
1688
1689/* Find all the common variables and turn them into
1690   ordinary defs - dunno why, but thats what hitachi does with 'em.  */
1691
1692static void
1693prescan (struct coff_ofile *tree)
1694{
1695  struct coff_symbol *s;
1696  struct coff_section *common_section;
1697
1698  /* Find the common section - always section 3.  */
1699  common_section = tree->sections + 3;
1700
1701  for (s = tree->symbol_list_head;
1702       s;
1703       s = s->next_in_ofile_list)
1704    {
1705      if (s->visible->type == coff_vis_common)
1706	{
1707	  struct coff_where *w = s->where;
1708	  /*      s->visible->type = coff_vis_ext_def; leave it as common */
1709	  common_section->size = align (common_section->size);
1710	  w->offset = common_section->size + common_section->address;
1711	  w->section = common_section;
1712	  common_section->size += s->type->size;
1713	  common_section->size = align (common_section->size);
1714	}
1715    }
1716}
1717
1718char *program_name;
1719
1720static void
1721show_usage (FILE *file, int status)
1722{
1723  fprintf (file, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name);
1724  fprintf (file, _("Convert a COFF object file into a SYSROFF object file\n"));
1725  fprintf (file, _(" The options are:\n\
1726  -q --quick       (Obsolete - ignored)\n\
1727  -n --noprescan   Do not perform a scan to convert commons into defs\n\
1728  -d --debug       Display information about what is being done\n\
1729  @<file>          Read options from <file>\n\
1730  -h --help        Display this information\n\
1731  -v --version     Print the program's version number\n"));
1732
1733  if (REPORT_BUGS_TO[0] && status == 0)
1734    fprintf (file, _("Report bugs to %s\n"), REPORT_BUGS_TO);
1735  exit (status);
1736}
1737
1738int
1739main (int ac, char **av)
1740{
1741  int opt;
1742  static struct option long_options[] =
1743  {
1744    {"debug", no_argument, 0, 'd'},
1745    {"quick", no_argument, 0, 'q'},
1746    {"noprescan", no_argument, 0, 'n'},
1747    {"help", no_argument, 0, 'h'},
1748    {"version", no_argument, 0, 'V'},
1749    {NULL, no_argument, 0, 0}
1750  };
1751  char **matching;
1752  char *input_file;
1753  char *output_file;
1754
1755#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
1756  setlocale (LC_MESSAGES, "");
1757#endif
1758#if defined (HAVE_SETLOCALE)
1759  setlocale (LC_CTYPE, "");
1760#endif
1761  bindtextdomain (PACKAGE, LOCALEDIR);
1762  textdomain (PACKAGE);
1763
1764  program_name = av[0];
1765  xmalloc_set_program_name (program_name);
1766
1767  expandargv (&ac, &av);
1768
1769  while ((opt = getopt_long (ac, av, "dHhVvqn", long_options,
1770			     (int *) NULL))
1771	 != EOF)
1772    {
1773      switch (opt)
1774	{
1775	case 'q':
1776	  quick = 1;
1777	  break;
1778	case 'n':
1779	  noprescan = 1;
1780	  break;
1781	case 'd':
1782	  debug = 1;
1783	  break;
1784	case 'H':
1785	case 'h':
1786	  show_usage (stdout, 0);
1787	  /*NOTREACHED */
1788	case 'v':
1789	case 'V':
1790	  print_version ("srconv");
1791	  exit (0);
1792	  /*NOTREACHED */
1793	case 0:
1794	  break;
1795	default:
1796	  show_usage (stderr, 1);
1797	  /*NOTREACHED */
1798	}
1799    }
1800
1801  /* The input and output files may be named on the command line.  */
1802  output_file = NULL;
1803  if (optind < ac)
1804    {
1805      input_file = av[optind];
1806      ++optind;
1807      if (optind < ac)
1808	{
1809	  output_file = av[optind];
1810	  ++optind;
1811	  if (optind < ac)
1812	    show_usage (stderr, 1);
1813	  if (strcmp (input_file, output_file) == 0)
1814	    {
1815	      fatal (_("input and output files must be different"));
1816	    }
1817	}
1818    }
1819  else
1820    input_file = 0;
1821
1822  if (!input_file)
1823    {
1824      fatal (_("no input file specified"));
1825    }
1826
1827  if (!output_file)
1828    {
1829      /* Take a .o off the input file and stick on a .obj.  If
1830         it doesn't end in .o, then stick a .obj on anyway */
1831
1832      int len = strlen (input_file);
1833
1834      output_file = xmalloc (len + 5);
1835      strcpy (output_file, input_file);
1836
1837      if (len > 3
1838	  && output_file[len - 2] == '.'
1839	  && output_file[len - 1] == 'o')
1840	{
1841	  output_file[len] = 'b';
1842	  output_file[len + 1] = 'j';
1843	  output_file[len + 2] = 0;
1844	}
1845      else
1846	{
1847	  strcat (output_file, ".obj");
1848	}
1849    }
1850
1851  abfd = bfd_openr (input_file, 0);
1852
1853  if (!abfd)
1854    bfd_fatal (input_file);
1855
1856  if (!bfd_check_format_matches (abfd, bfd_object, &matching))
1857    {
1858      bfd_nonfatal (input_file);
1859
1860      if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
1861	{
1862	  list_matching_formats (matching);
1863	  free (matching);
1864	}
1865      exit (1);
1866    }
1867
1868  file = fopen (output_file, FOPEN_WB);
1869
1870  if (!file)
1871    fatal (_("unable to open output file %s"), output_file);
1872
1873  if (debug)
1874    printf ("ids %d %d\n", base1, base2);
1875
1876  tree = coff_grok (abfd);
1877
1878  if (!noprescan)
1879    prescan (tree);
1880
1881  wr_module (tree);
1882  return 0;
1883}
1884