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 3 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 
42 static int addrsize;
43 static char *toolname;
44 static char **rnames;
45 
46 static int get_member_id (int);
47 static int get_ordinary_id (int);
48 static char *section_translate (char *);
49 static char *strip_suffix (const char *);
50 static void checksum (FILE *, unsigned char *, int, int);
51 static void writeINT (int, unsigned char *, int *, int, FILE *);
52 static void writeBITS (int, unsigned char *, int *, int);
53 static void writeBARRAY (barray, unsigned char *, int *, int, FILE *);
54 static void writeCHARS (char *, unsigned char *, int *, int, FILE *);
55 static void wr_tr (void);
56 static void wr_un (struct coff_ofile *, struct coff_sfile *, int, int);
57 static void wr_hd (struct coff_ofile *);
58 static void wr_sh (struct coff_ofile *, struct coff_section *);
59 static void wr_ob (struct coff_ofile *, struct coff_section *);
60 static void wr_rl (struct coff_ofile *, struct coff_section *);
61 static void wr_object_body (struct coff_ofile *);
62 static void wr_dps_start
63   (struct coff_sfile *, struct coff_section *, struct coff_scope *, int, int);
64 static void wr_dps_end (struct coff_section *, struct coff_scope *, int);
65 static int *nints (int);
66 static void walk_tree_type_1
67   (struct coff_sfile *, struct coff_symbol *, struct coff_type *, int);
68 static void walk_tree_type
69   (struct coff_sfile *, struct coff_symbol *, struct coff_type *, int);
70 static void walk_tree_symbol
71   (struct coff_sfile *, struct coff_section *, struct coff_symbol *, int);
72 static void walk_tree_scope
73   (struct coff_section *, struct coff_sfile *, struct coff_scope *, int, int);
74 static void walk_tree_sfile (struct coff_section *, struct coff_sfile *);
75 static void wr_program_structure (struct coff_ofile *, struct coff_sfile *);
76 static void wr_du (struct coff_ofile *, struct coff_sfile *, int);
77 static void wr_dus (struct coff_ofile *, struct coff_sfile *);
78 static int find_base (struct coff_sfile *, struct coff_section *);
79 static void wr_dln (struct coff_ofile *, struct coff_sfile *, int);
80 static void wr_globals (struct coff_ofile *, struct coff_sfile *, int);
81 static void wr_debug (struct coff_ofile *);
82 static void wr_cs (void);
83 static int wr_sc (struct coff_ofile *, struct coff_sfile *);
84 static void wr_er (struct coff_ofile *, struct coff_sfile *, int);
85 static void wr_ed (struct coff_ofile *, struct coff_sfile *, int);
86 static void wr_unit_info (struct coff_ofile *);
87 static void wr_module (struct coff_ofile *);
88 static int align (int);
89 static void prescan (struct coff_ofile *);
90 static void show_usage (FILE *, int);
91 extern int main (int, char **);
92 
93 static FILE *file;
94 static bfd *abfd;
95 static int debug = 0;
96 static int quick = 0;
97 static int noprescan = 0;
98 static struct coff_ofile *tree;
99 /* Obsolete ??
100    static int absolute_p;
101  */
102 
103 static int segmented_p;
104 static int code;
105 
106 static int ids1[20000];
107 static int ids2[20000];
108 
109 static int base1 = 0x18;
110 static int base2 = 0x2018;
111 
112 static int
113 get_member_id (int x)
114 {
115   if (ids2[x])
116     return ids2[x];
117 
118   ids2[x] = base2++;
119   return ids2[x];
120 }
121 
122 static int
123 get_ordinary_id (int x)
124 {
125   if (ids1[x])
126     return ids1[x];
127 
128   ids1[x] = base1++;
129   return ids1[x];
130 }
131 static char *
132 section_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 
145 static char *
146 strip_suffix (const char *name)
147 {
148   int i;
149   char *res;
150 
151   for (i = 0; name[i] != 0 && name[i] != '.'; i++)
152     ;
153   res = (char *) xmalloc (i + 1);
154   memcpy (res, name, i);
155   res[i] = 0;
156   return res;
157 }
158 
159 /* IT LEN stuff CS */
160 static void
161 checksum (FILE *file, unsigned char *ptr, int size, int code)
162 {
163   int j;
164   int last;
165   int sum = 0;
166   int bytes = size / 8;
167 
168   last = !(code & 0xff00);
169   if (size & 0x7)
170     abort ();
171   ptr[0] = code | (last ? 0x80 : 0);
172   ptr[1] = bytes + 1;
173 
174   for (j = 0; j < bytes; j++)
175     sum += ptr[j];
176 
177   /* Glue on a checksum too.  */
178   ptr[bytes] = ~sum;
179   if (fwrite (ptr, bytes + 1, 1, file) != 1)
180     /* FIXME: Return error status.  */
181     abort ();
182 }
183 
184 
185 static void
186 writeINT (int n, unsigned char *ptr, int *idx, int size, FILE *file)
187 {
188   int byte = *idx / 8;
189 
190   if (size == -2)
191     size = addrsize;
192   else if (size == -1)
193     size = 0;
194 
195   if (byte > 240)
196     {
197       /* Lets write out that record and do another one.  */
198       checksum (file, ptr, *idx, code | 0x1000);
199       *idx = 16;
200       byte = *idx / 8;
201     }
202 
203   switch (size)
204     {
205     case 0:
206       break;
207     case 1:
208       ptr[byte] = n;
209       break;
210     case 2:
211       ptr[byte + 0] = n >> 8;
212       ptr[byte + 1] = n;
213       break;
214     case 4:
215       ptr[byte + 0] = n >> 24;
216       ptr[byte + 1] = n >> 16;
217       ptr[byte + 2] = n >> 8;
218       ptr[byte + 3] = n >> 0;
219       break;
220     default:
221       abort ();
222     }
223   *idx += size * 8;
224 }
225 
226 static void
227 writeBITS (int val, unsigned char *ptr, int *idx, int size)
228 {
229   int byte = *idx / 8;
230   int bit = *idx % 8;
231   int old;
232 
233   *idx += size;
234 
235   old = ptr[byte];
236   /* Turn off all about to change bits.  */
237   old &= ~((~0 >> (8 - bit - size)) & ((1 << size) - 1));
238   /* Turn on the bits we want.  */
239   old |= (val & ((1 << size) - 1)) << (8 - bit - size);
240   ptr[byte] = old;
241 }
242 
243 static void
244 writeBARRAY (barray data, unsigned char *ptr, int *idx,
245 	     int size ATTRIBUTE_UNUSED, FILE *file)
246 {
247   int i;
248 
249   writeINT (data.len, ptr, idx, 1, file);
250   for (i = 0; i < data.len; i++)
251     writeINT (data.data[i], ptr, idx, 1, file);
252 }
253 
254 static void
255 writeCHARS (char *string, unsigned char *ptr, int *idx, int size, FILE *file)
256 {
257   int i = *idx / 8;
258 
259   if (i > 240)
260     {
261       /* Lets write out that record and do another one.  */
262       checksum (file, ptr, *idx, code | 0x1000);
263       *idx = 16;
264       i = *idx / 8;
265     }
266 
267   if (size == 0)
268     {
269       /* Variable length string.  */
270       size = strlen (string);
271       ptr[i++] = size;
272     }
273 
274   /* BUG WAITING TO HAPPEN.  */
275   memcpy (ptr + i, string, size);
276   i += size;
277   *idx = i * 8;
278 }
279 
280 #define SYSROFF_SWAP_OUT
281 #include "sysroff.c"
282 
283 static char *rname_sh[] =
284 {
285   "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", "R8", "R9", "R10", "R11", "R12", "R13", "R14", "R15"
286 };
287 
288 static char *rname_h8300[] =
289 {
290   "ER0", "ER1", "ER2", "ER3", "ER4", "ER5", "ER6", "ER7", "PC", "CCR"
291 };
292 
293 static void
294 wr_tr (void)
295 {
296   /* The TR block is not normal - it doesn't have any contents.  */
297 
298   static char b[] =
299     {
300       0xff,			/* IT */
301       0x03,			/* RL */
302       0xfd,			/* CS */
303     };
304 
305   if (fwrite (b, sizeof (b), 1, file) != 1)
306     /* FIXME: Return error status.  */
307     abort ();
308 }
309 
310 static void
311 wr_un (struct coff_ofile *ptr, struct coff_sfile *sfile, int first,
312        int nsecs ATTRIBUTE_UNUSED)
313 {
314   struct IT_un un;
315   struct coff_symbol *s;
316 
317   un.spare1 = 0;
318 
319   if (bfd_get_file_flags (abfd) & EXEC_P)
320     un.format = FORMAT_LM;
321   else
322     un.format = FORMAT_OM;
323   un.spare1 = 0;
324 
325   /* Don't count the abs section.  */
326   un.nsections = ptr->nsections - 1;
327 
328   un.nextdefs = 0;
329   un.nextrefs = 0;
330   /* Count all the undefined and defined variables with global scope.  */
331 
332   if (first)
333     {
334       for (s = ptr->symbol_list_head; s; s = s->next_in_ofile_list)
335 	{
336 	  if (s->visible->type == coff_vis_ext_def
337 	      || s->visible->type == coff_vis_common)
338 	    un.nextdefs++;
339 
340 	  if (s->visible->type == coff_vis_ext_ref)
341 	    un.nextrefs++;
342 	}
343     }
344   un.tool = toolname;
345   un.tcd = DATE;
346   un.linker = "L_GX00";
347   un.lcd = DATE;
348   un.name = sfile->name;
349   sysroff_swap_un_out (file, &un);
350 }
351 
352 static void
353 wr_hd (struct coff_ofile *p)
354 {
355   struct IT_hd hd;
356 
357   hd.spare1 = 0;
358   if (bfd_get_file_flags (abfd) & EXEC_P)
359     hd.mt = MTYPE_ABS_LM;
360   else
361     hd.mt = MTYPE_OMS_OR_LMS;
362 
363   hd.cd = DATE;
364 
365   hd.nu = p->nsources;		/* Always one unit */
366   hd.code = 0;			/* Always ASCII */
367   hd.ver = "0200";		/* Version 2.00 */
368 
369   switch (bfd_get_arch (abfd))
370     {
371     case bfd_arch_h8300:
372       hd.au = 8;
373       hd.si = 0;
374       hd.spcsz = 32;
375       hd.segsz = 0;
376       hd.segsh = 0;
377       switch (bfd_get_mach (abfd))
378 	{
379 	case bfd_mach_h8300:
380 	  hd.cpu = "H8300";
381 	  hd.afl = 2;
382 	  addrsize = 2;
383 	  toolname = "C_H8/300";
384 	  break;
385 	case bfd_mach_h8300h:
386 	  hd.cpu = "H8300H";
387 	  hd.afl = 4;
388 	  addrsize = 4;
389 	  toolname = "C_H8/300H";
390 	  break;
391 	case bfd_mach_h8300s:
392 	  hd.cpu = "H8300S";
393 	  hd.afl = 4;
394 	  addrsize = 4;
395 	  toolname = "C_H8/300S";
396 	  break;
397 	default:
398 	  abort();
399 	}
400       rnames = rname_h8300;
401       break;
402     case bfd_arch_sh:
403       hd.au = 8;
404       hd.si = 0;
405       hd.afl = 4;
406       hd.spcsz = 32;
407       hd.segsz = 0;
408       hd.segsh = 0;
409       hd.cpu = "SH";
410       addrsize = 4;
411       toolname = "C_SH";
412       rnames = rname_sh;
413       break;
414     default:
415       abort ();
416     }
417 
418   if (! bfd_get_file_flags(abfd) & EXEC_P)
419     {
420       hd.ep = 0;
421     }
422   else
423     {
424       hd.ep = 1;
425       hd.uan = 0;
426       hd.sa = 0;
427       hd.sad = 0;
428       hd.address = bfd_get_start_address (abfd);
429     }
430 
431   hd.os = "";
432   hd.sys = "";
433   hd.mn = strip_suffix (bfd_get_filename (abfd));
434 
435   sysroff_swap_hd_out (file, &hd);
436 }
437 
438 
439 static void
440 wr_sh (struct coff_ofile *p ATTRIBUTE_UNUSED, struct coff_section *sec)
441 {
442   struct IT_sh sh;
443   sh.unit = 0;
444   sh.section = sec->number;
445 #ifdef FOOP1
446   sh.section = 0;
447 #endif
448   sysroff_swap_sh_out (file, &sh);
449 }
450 
451 
452 static void
453 wr_ob (struct coff_ofile *p ATTRIBUTE_UNUSED, struct coff_section *section)
454 {
455   bfd_size_type i;
456   int first = 1;
457   unsigned char stuff[200];
458 
459   i = 0;
460   while (i < bfd_get_section_size (section->bfd_section))
461     {
462       struct IT_ob ob;
463       int todo = 200;		/* Copy in 200 byte lumps.  */
464 
465       ob.spare = 0;
466       if (i + todo > bfd_get_section_size (section->bfd_section))
467 	todo = bfd_get_section_size (section->bfd_section) - i;
468 
469       if (first)
470 	{
471 	  ob.saf = 1;
472 	  if (bfd_get_file_flags (abfd) & EXEC_P)
473 	    ob.address = section->address;
474 	  else
475 	    ob.address = 0;
476 
477 	  first = 0;
478 	}
479       else
480 	{
481 	  ob.saf = 0;
482 	}
483 
484       ob.cpf = 0;		/* Never compress.  */
485       ob.data.len = todo;
486       bfd_get_section_contents (abfd, section->bfd_section, stuff, i, todo);
487       ob.data.data = stuff;
488       sysroff_swap_ob_out (file, &ob /*, i + todo < section->size */ );
489       i += todo;
490     }
491 
492   /* Now fill the rest with blanks.  */
493   while (i < (bfd_size_type) section->size)
494     {
495       struct IT_ob ob;
496       int todo = 200;		/* Copy in 200 byte lumps.  */
497 
498       ob.spare = 0;
499       if (i + todo > (bfd_size_type) section->size)
500 	todo = section->size - i;
501       ob.saf = 0;
502 
503       ob.cpf = 0;		/* Never compress.  */
504       ob.data.len = todo;
505       memset (stuff, 0, todo);
506       ob.data.data = stuff;
507       sysroff_swap_ob_out (file, &ob);
508       i += todo;
509     }
510   /* Now fill the rest with blanks.  */
511 }
512 
513 static void
514 wr_rl (struct coff_ofile *ptr ATTRIBUTE_UNUSED, struct coff_section *sec)
515 {
516   int nr = sec->nrelocs;
517   int i;
518 
519   for (i = 0; i < nr; i++)
520     {
521       struct coff_reloc *r = sec->relocs + i;
522       struct coff_symbol *ref;
523       struct IT_rl rl;
524 
525       rl.apol = 0;
526       rl.boundary = 0;
527       rl.segment = 1;
528       rl.sign = 0;
529       rl.check = 0;
530       rl.addr = r->offset;
531       rl.bitloc = 0;
532       rl.flen = 32;		/* SH Specific.  */
533 
534       /* What sort of reloc ? Look in the section to find out.  */
535       ref = r->symbol;
536       if (ref->visible->type == coff_vis_ext_ref)
537 	{
538 	  rl.bcount = 4;	/* Always 4 for us.  */
539 	  rl.op = OP_EXT_REF;
540 	  rl.symn = ref->er_number;
541 	}
542       else if (ref->visible->type == coff_vis_common)
543 	{
544 	  rl.bcount = 11;	/* Always 11 for us.  */
545 	  rl.op = OP_SEC_REF;
546 	  rl.secn = ref->where->section->number;
547 	  rl.copcode_is_3 = 3;
548 	  rl.alength_is_4 = 4;
549 	  rl.addend = ref->where->offset - ref->where->section->address;
550 	  rl.aopcode_is_0x20 = 0x20;
551 	}
552       else
553 	{
554 	  rl.bcount = 11;	/* Always 11 for us.  */
555 	  rl.op = OP_SEC_REF;
556 	  rl.secn = ref->where->section->number;
557 	  rl.copcode_is_3 = 3;
558 	  rl.alength_is_4 = 4;
559 	  rl.addend = -ref->where->section->address;
560 	  rl.aopcode_is_0x20 = 0x20;
561 	}
562 
563       rl.end = 0xff;
564 
565       if (   rl.op == OP_SEC_REF
566 	  || rl.op == OP_EXT_REF)
567 	sysroff_swap_rl_out (file, &rl);
568     }
569 }
570 
571 static void
572 wr_object_body (struct coff_ofile *p)
573 {
574   int i;
575 
576   for (i = 1; i < p->nsections; i++)
577     {
578       wr_sh (p, p->sections + i);
579       wr_ob (p, p->sections + i);
580       wr_rl (p, p->sections + i);
581     }
582 }
583 
584 static void
585 wr_dps_start (struct coff_sfile *sfile,
586 	      struct coff_section *section ATTRIBUTE_UNUSED,
587 	      struct coff_scope *scope, int type, int nest)
588 {
589   struct IT_dps dps;
590 
591   dps.end = 0;
592   dps.opt = 0;
593   dps.type = type;
594 
595   if (scope->sec)
596     {
597       dps.san = scope->sec->number;
598       dps.address = scope->offset - find_base (sfile, scope->sec);
599       dps.block_size = scope->size;
600 
601       if (debug)
602 	{
603 	  printf ("DPS %s %d %x\n",
604 		  sfile->name,
605 		  nest,
606 		  dps.address);
607 	}
608     }
609   else
610     {
611       dps.san = 0;
612       dps.address = 0;
613       dps.block_size = 0;
614     }
615 
616   dps.nesting = nest;
617   dps.neg = 0x1001;
618   sysroff_swap_dps_out (file, &dps);
619 }
620 
621 static void
622 wr_dps_end (struct coff_section *section ATTRIBUTE_UNUSED,
623 	    struct coff_scope *scope ATTRIBUTE_UNUSED, int type)
624 {
625   struct IT_dps dps;
626 
627   dps.end = 1;
628   dps.type = type;
629   sysroff_swap_dps_out (file, &dps);
630 }
631 
632 static int *
633 nints (int x)
634 {
635   return (int *) (xcalloc (sizeof (int), x));
636 }
637 
638 static void
639 walk_tree_type_1 (struct coff_sfile *sfile, struct coff_symbol *symbol,
640 		  struct coff_type *type, int nest)
641 {
642   switch (type->type)
643     {
644     case coff_secdef_type:
645     case coff_basic_type:
646       {
647 	struct IT_dbt dbt;
648 
649 	switch (type->u.basic)
650 	  {
651 	  case T_NULL:
652 	  case T_VOID:
653 	    dbt.btype = BTYPE_VOID;
654 	    dbt.sign = BTYPE_UNSPEC;
655 	    dbt.fptype = FPTYPE_NOTSPEC;
656 	    break;
657 
658 	  case T_CHAR:
659 	    dbt.btype = BTYPE_CHAR;
660 	    dbt.sign = BTYPE_UNSPEC;
661 	    dbt.fptype = FPTYPE_NOTSPEC;
662 	    break;
663 
664 	  case T_SHORT:
665 	  case T_INT:
666 	  case T_LONG:
667 	    dbt.btype = BTYPE_INT;
668 	    dbt.sign = SIGN_SIGNED;
669 	    dbt.fptype = FPTYPE_NOTSPEC;
670 	    break;
671 
672 	  case T_FLOAT:
673 	    dbt.btype = BTYPE_FLOAT;
674 	    dbt.fptype = FPTYPE_SINGLE;
675 	    break;
676 
677 	  case T_DOUBLE:
678 	    dbt.btype = BTYPE_FLOAT;
679 	    dbt.fptype = FPTYPE_DOUBLE;
680 	    break;
681 
682 	  case T_LNGDBL:
683 	    dbt.btype = BTYPE_FLOAT;
684 	    dbt.fptype = FPTYPE_EXTENDED;
685 	    break;
686 
687 	  case T_UCHAR:
688 	    dbt.btype = BTYPE_CHAR;
689 	    dbt.sign = SIGN_UNSIGNED;
690 	    dbt.fptype = FPTYPE_NOTSPEC;
691 	    break;
692 
693 	  case T_USHORT:
694 	  case T_UINT:
695 	  case T_ULONG:
696 	    dbt.btype = BTYPE_INT;
697 	    dbt.sign = SIGN_UNSIGNED;
698 	    dbt.fptype = FPTYPE_NOTSPEC;
699 	    break;
700 	  }
701 
702 	dbt.bitsize = type->size;
703 	dbt.neg = 0x1001;
704 	sysroff_swap_dbt_out (file, &dbt);
705 	break;
706       }
707 
708     case coff_pointer_type:
709       {
710 	struct IT_dpt dpt;
711 
712 	dpt.dunno = 0;
713 	walk_tree_type_1 (sfile, symbol, type->u.pointer.points_to, nest + 1);
714 	dpt.neg = 0x1001;
715 	sysroff_swap_dpt_out (file, &dpt);
716 	break;
717       }
718 
719     case coff_function_type:
720       {
721 	struct IT_dfp dfp;
722 	struct coff_symbol *param;
723 
724 	dfp.end = 0;
725 	dfp.spare = 0;
726 	dfp.nparams = type->u.function.parameters->nvars;
727 	dfp.neg = 0x1001;
728 
729 	walk_tree_type_1 (sfile, symbol, type->u.function.function_returns, nest + 1);
730 
731 	sysroff_swap_dfp_out (file, &dfp);
732 
733 	for (param = type->u.function.parameters->vars_head;
734 	     param;
735 	     param = param->next)
736 	  walk_tree_symbol (sfile, 0, param, nest);
737 
738 	dfp.end = 1;
739 	sysroff_swap_dfp_out (file, &dfp);
740 	break;
741       }
742 
743     case coff_structdef_type:
744       {
745 	struct IT_dbt dbt;
746 	struct IT_dds dds;
747 	struct coff_symbol *member;
748 
749 	dds.spare = 0;
750 	dbt.btype = BTYPE_STRUCT;
751 	dbt.bitsize = type->size;
752 	dbt.sign = SIGN_UNSPEC;
753 	dbt.fptype = FPTYPE_NOTSPEC;
754 	dbt.sid = get_member_id (type->u.astructdef.idx);
755 	dbt.neg = 0x1001;
756 	sysroff_swap_dbt_out (file, &dbt);
757 	dds.end = 0;
758 	dds.neg = 0x1001;
759 	sysroff_swap_dds_out (file, &dds);
760 
761 	for (member = type->u.astructdef.elements->vars_head;
762 	     member;
763 	     member = member->next)
764 	  walk_tree_symbol (sfile, 0, member, nest + 1);
765 
766 	dds.end = 1;
767 	sysroff_swap_dds_out (file, &dds);
768 
769       }
770       break;
771 
772     case coff_structref_type:
773       {
774 	struct IT_dbt dbt;
775 
776 	dbt.btype = BTYPE_TAG;
777 	dbt.bitsize = type->size;
778 	dbt.sign = SIGN_UNSPEC;
779 	dbt.fptype = FPTYPE_NOTSPEC;
780 
781 	if (type->u.astructref.ref)
782 	  dbt.sid = get_member_id (type->u.astructref.ref->number);
783 	else
784 	  dbt.sid = 0;
785 
786 	dbt.neg = 0x1001;
787 	sysroff_swap_dbt_out (file, &dbt);
788       }
789       break;
790 
791     case coff_array_type:
792       {
793 	struct IT_dar dar;
794 	int j;
795 	int dims = 1;		/* Only output one dimension at a time.  */
796 
797 	dar.dims = dims;
798 	dar.variable = nints (dims);
799 	dar.subtype = nints (dims);
800 	dar.spare = nints (dims);
801 	dar.max_variable = nints (dims);
802 	dar.maxspare = nints (dims);
803 	dar.max = nints (dims);
804 	dar.min_variable = nints (dims);
805 	dar.min = nints (dims);
806 	dar.minspare = nints (dims);
807 	dar.neg = 0x1001;
808 	dar.length = type->size / type->u.array.dim;
809 
810 	for (j = 0; j < dims; j++)
811 	  {
812 	    dar.variable[j] = VARIABLE_FIXED;
813 	    dar.subtype[j] = SUB_INTEGER;
814 	    dar.spare[j] = 0;
815 	    dar.max_variable[j] = 0;
816 	    dar.max[j] = type->u.array.dim;
817 	    dar.min_variable[j] = 0;
818 	    dar.min[j] = 1;	/* Why isn't this 0 ? */
819 	  }
820 	walk_tree_type_1 (sfile, symbol, type->u.array.array_of, nest + 1);
821 	sysroff_swap_dar_out (file, &dar);
822       }
823       break;
824 
825     case coff_enumdef_type:
826       {
827 	struct IT_dbt dbt;
828 	struct IT_den den;
829 	struct coff_symbol *member;
830 
831 	dbt.btype = BTYPE_ENUM;
832 	dbt.bitsize = type->size;
833 	dbt.sign = SIGN_UNSPEC;
834 	dbt.fptype = FPTYPE_NOTSPEC;
835 	dbt.sid = get_member_id (type->u.aenumdef.idx);
836 	dbt.neg = 0x1001;
837 	sysroff_swap_dbt_out (file, &dbt);
838 
839 	den.end = 0;
840 	den.neg = 0x1001;
841 	den.spare = 0;
842 	sysroff_swap_den_out (file, &den);
843 
844 	for (member = type->u.aenumdef.elements->vars_head;
845 	     member;
846 	     member = member->next)
847 	  walk_tree_symbol (sfile, 0, member, nest + 1);
848 
849 	den.end = 1;
850 	sysroff_swap_den_out (file, &den);
851       }
852       break;
853 
854     case coff_enumref_type:
855       {
856 	struct IT_dbt dbt;
857 
858 	dbt.btype = BTYPE_TAG;
859 	dbt.bitsize = type->size;
860 	dbt.sign = SIGN_UNSPEC;
861 	dbt.fptype = FPTYPE_NOTSPEC;
862 	dbt.sid = get_member_id (type->u.aenumref.ref->number);
863 	dbt.neg = 0x1001;
864 	sysroff_swap_dbt_out (file, &dbt);
865       }
866       break;
867 
868     default:
869       abort ();
870     }
871 }
872 
873 /* Obsolete ?
874    static void
875    dty_start ()
876    {
877    struct IT_dty dty;
878    dty.end = 0;
879    dty.neg = 0x1001;
880    dty.spare = 0;
881    sysroff_swap_dty_out (file, &dty);
882    }
883 
884    static void
885    dty_stop ()
886    {
887    struct IT_dty dty;
888    dty.end = 0;
889    dty.neg = 0x1001;
890    dty.end = 1;
891    sysroff_swap_dty_out (file, &dty);
892    }
893 
894 
895    static void
896    dump_tree_structure (sfile, symbol, type, nest)
897    struct coff_sfile *sfile;
898    struct coff_symbol *symbol;
899    struct coff_type *type;
900    int nest;
901    {
902    if (symbol->type->type == coff_function_type)
903    {
904 
905 
906    }
907 
908    }
909  */
910 
911 static void
912 walk_tree_type (struct coff_sfile *sfile, struct coff_symbol *symbol,
913 		struct coff_type *type, int nest)
914 {
915   if (symbol->type->type == coff_function_type)
916     {
917       struct IT_dty dty;
918 
919       dty.end = 0;
920       dty.neg = 0x1001;
921 
922       sysroff_swap_dty_out (file, &dty);
923       walk_tree_type_1 (sfile, symbol, type, nest);
924       dty.end = 1;
925       sysroff_swap_dty_out (file, &dty);
926 
927       wr_dps_start (sfile,
928 		    symbol->where->section,
929 		    symbol->type->u.function.code,
930 		    BLOCK_TYPE_FUNCTION, nest);
931       wr_dps_start (sfile, symbol->where->section,
932 		    symbol->type->u.function.code,
933 		    BLOCK_TYPE_BLOCK, nest);
934       walk_tree_scope (symbol->where->section,
935 		       sfile,
936 		       symbol->type->u.function.code,
937 		       nest + 1, BLOCK_TYPE_BLOCK);
938 
939       wr_dps_end (symbol->where->section,
940 		  symbol->type->u.function.code,
941 		  BLOCK_TYPE_BLOCK);
942       wr_dps_end (symbol->where->section,
943 		  symbol->type->u.function.code, BLOCK_TYPE_FUNCTION);
944     }
945   else
946     {
947       struct IT_dty dty;
948 
949       dty.end = 0;
950       dty.neg = 0x1001;
951       sysroff_swap_dty_out (file, &dty);
952       walk_tree_type_1 (sfile, symbol, type, nest);
953       dty.end = 1;
954       sysroff_swap_dty_out (file, &dty);
955     }
956 }
957 
958 static void
959 walk_tree_symbol (struct coff_sfile *sfile, struct coff_section *section ATTRIBUTE_UNUSED, struct coff_symbol *symbol, int nest)
960 {
961   struct IT_dsy dsy;
962 
963   memset (&dsy, 0, sizeof(dsy));
964   dsy.nesting = nest;
965 
966   switch (symbol->type->type)
967     {
968     case coff_function_type:
969       dsy.type = STYPE_FUNC;
970       dsy.assign = 1;
971       break;
972 
973     case coff_structref_type:
974     case coff_pointer_type:
975     case coff_array_type:
976     case coff_basic_type:
977     case coff_enumref_type:
978       dsy.type = STYPE_VAR;
979       dsy.assign = 1;
980       break;
981 
982     case coff_enumdef_type:
983       dsy.type = STYPE_TAG;
984       dsy.assign = 0;
985       dsy.magic = 2;
986       break;
987 
988     case coff_structdef_type:
989       dsy.type = STYPE_TAG;
990       dsy.assign = 0;
991       dsy.magic = symbol->type->u.astructdef.isstruct ? 0 : 1;
992       break;
993 
994     case coff_secdef_type:
995       return;
996 
997     default:
998       abort ();
999     }
1000 
1001   if (symbol->where->where == coff_where_member_of_struct)
1002     {
1003       dsy.assign = 0;
1004       dsy.type = STYPE_MEMBER;
1005     }
1006 
1007   if (symbol->where->where == coff_where_member_of_enum)
1008     {
1009       dsy.type = STYPE_ENUM;
1010       dsy.assign = 0;
1011       dsy.evallen = 4;
1012       dsy.evalue = symbol->where->offset;
1013     }
1014 
1015   if (symbol->type->type == coff_structdef_type
1016       || symbol->where->where == coff_where_entag
1017       || symbol->where->where == coff_where_strtag)
1018     {
1019       dsy.snumber = get_member_id (symbol->number);
1020     }
1021   else
1022     {
1023       dsy.snumber = get_ordinary_id (symbol->number);
1024     }
1025 
1026   dsy.sname = symbol->name[0] == '_' ? symbol->name + 1 : symbol->name;
1027 
1028   switch (symbol->visible->type)
1029     {
1030     case coff_vis_common:
1031     case coff_vis_ext_def:
1032       dsy.ainfo = AINFO_STATIC_EXT_DEF;
1033       break;
1034 
1035     case coff_vis_ext_ref:
1036       dsy.ainfo = AINFO_STATIC_EXT_REF;
1037       break;
1038 
1039     case coff_vis_int_def:
1040       dsy.ainfo = AINFO_STATIC_INT;
1041       break;
1042 
1043     case coff_vis_auto:
1044     case coff_vis_autoparam:
1045       dsy.ainfo = AINFO_AUTO;
1046       break;
1047 
1048     case coff_vis_register:
1049     case coff_vis_regparam:
1050       dsy.ainfo = AINFO_REG;
1051       break;
1052       break;
1053 
1054     case coff_vis_tag:
1055     case coff_vis_member_of_struct:
1056     case coff_vis_member_of_enum:
1057       break;
1058 
1059     default:
1060       abort ();
1061     }
1062 
1063   dsy.dlength = symbol->type->size;
1064 
1065   switch (symbol->where->where)
1066     {
1067     case coff_where_memory:
1068 
1069       dsy.section = symbol->where->section->number;
1070 #ifdef FOOP
1071       dsy.section = 0;
1072 #endif
1073       break;
1074 
1075     case coff_where_member_of_struct:
1076     case coff_where_member_of_enum:
1077     case coff_where_stack:
1078     case coff_where_register:
1079     case coff_where_unknown:
1080     case coff_where_strtag:
1081     case coff_where_entag:
1082     case coff_where_typedef:
1083       break;
1084 
1085     default:
1086       abort ();
1087     }
1088 
1089   switch (symbol->where->where)
1090     {
1091     case coff_where_memory:
1092       dsy.address = symbol->where->offset - find_base (sfile, symbol->where->section);
1093       break;
1094 
1095     case coff_where_stack:
1096       dsy.address = symbol->where->offset;
1097       break;
1098 
1099     case coff_where_member_of_struct:
1100       if (symbol->where->bitsize)
1101 	{
1102 	  int bits = (symbol->where->offset * 8 + symbol->where->bitoffset);
1103 	  dsy.bitunit = 1;
1104 	  dsy.field_len = symbol->where->bitsize;
1105 	  dsy.field_off = (bits / 32) * 4;
1106 	  dsy.field_bitoff = bits % 32;
1107 	}
1108       else
1109 	{
1110 	  dsy.bitunit = 0;
1111 
1112 	  dsy.field_len = symbol->type->size;
1113 	  dsy.field_off = symbol->where->offset;
1114 	}
1115       break;
1116 
1117     case coff_where_member_of_enum:
1118       /*      dsy.bitunit = 0;
1119          dsy.field_len  = symbol->type->size;
1120          dsy.field_off = symbol->where->offset; */
1121       break;
1122 
1123     case coff_where_register:
1124     case coff_where_unknown:
1125     case coff_where_strtag:
1126     case coff_where_entag:
1127     case coff_where_typedef:
1128       break;
1129 
1130     default:
1131       abort ();
1132     }
1133 
1134   if (symbol->where->where == coff_where_register)
1135     dsy.reg = rnames[symbol->where->offset];
1136 
1137   switch (symbol->visible->type)
1138     {
1139     case coff_vis_common:
1140       /* We do this 'cause common C symbols are treated as extdefs.  */
1141     case coff_vis_ext_def:
1142     case coff_vis_ext_ref:
1143       dsy.ename = symbol->name;
1144       break;
1145 
1146     case coff_vis_regparam:
1147     case coff_vis_autoparam:
1148       dsy.type = STYPE_PARAMETER;
1149       break;
1150 
1151     case coff_vis_int_def:
1152     case coff_vis_auto:
1153     case coff_vis_register:
1154     case coff_vis_tag:
1155     case coff_vis_member_of_struct:
1156     case coff_vis_member_of_enum:
1157       break;
1158 
1159     default:
1160       abort ();
1161     }
1162 
1163   dsy.sfn = 0;
1164   dsy.sln = 2;
1165   dsy.neg = 0x1001;
1166 
1167   sysroff_swap_dsy_out (file, &dsy);
1168 
1169   walk_tree_type (sfile, symbol, symbol->type, nest);
1170 }
1171 
1172 static void
1173 walk_tree_scope (struct coff_section *section, struct coff_sfile *sfile, struct coff_scope *scope, int nest, int type)
1174 {
1175   struct coff_symbol *vars;
1176   struct coff_scope *child;
1177 
1178   if (scope->vars_head
1179       || (scope->list_head && scope->list_head->vars_head))
1180     {
1181       wr_dps_start (sfile, section, scope, type, nest);
1182 
1183       if (nest == 0)
1184 	wr_globals (tree, sfile, nest + 1);
1185 
1186       for (vars = scope->vars_head; vars; vars = vars->next)
1187 	walk_tree_symbol (sfile, section, vars, nest);
1188 
1189       for (child = scope->list_head; child; child = child->next)
1190 	walk_tree_scope (section, sfile, child, nest + 1, BLOCK_TYPE_BLOCK);
1191 
1192       wr_dps_end (section, scope, type);
1193     }
1194 }
1195 
1196 static void
1197 walk_tree_sfile (struct coff_section *section, struct coff_sfile *sfile)
1198 {
1199   walk_tree_scope (section, sfile, sfile->scope, 0, BLOCK_TYPE_COMPUNIT);
1200 }
1201 
1202 static void
1203 wr_program_structure (struct coff_ofile *p, struct coff_sfile *sfile)
1204 {
1205   walk_tree_sfile (p->sections + 4, sfile);
1206 }
1207 
1208 static void
1209 wr_du (struct coff_ofile *p, struct coff_sfile *sfile, int n)
1210 {
1211   struct IT_du du;
1212   int lim;
1213   int i;
1214   int j;
1215   unsigned int *lowest = (unsigned *) nints (p->nsections);
1216   unsigned int *highest = (unsigned *) nints (p->nsections);
1217 
1218   du.format = bfd_get_file_flags (abfd) & EXEC_P ? 0 : 1;
1219   du.optimized = 0;
1220   du.stackfrmt = 0;
1221   du.spare = 0;
1222   du.unit = n;
1223   du.sections = p->nsections - 1;
1224   du.san = (int *) xcalloc (sizeof (int), du.sections);
1225   du.address = nints (du.sections);
1226   du.length = nints (du.sections);
1227 
1228   for (i = 0; i < du.sections; i++)
1229     {
1230       lowest[i] = ~0;
1231       highest[i] = 0;
1232     }
1233 
1234   lim = du.sections;
1235   for (j = 0; j < lim; j++)
1236     {
1237       int src = j;
1238       int dst = j;
1239 
1240       du.san[dst] = dst;
1241 
1242       if (sfile->section[src].init)
1243 	{
1244 	  du.length[dst]
1245 	    = sfile->section[src].high - sfile->section[src].low + 1;
1246 	  du.address[dst]
1247 	    = sfile->section[src].low;
1248 	}
1249       else
1250 	{
1251 	  du.length[dst] = 0;
1252 	  du.address[dst] = 0;
1253 	}
1254 
1255       if (debug)
1256 	{
1257 	  if (sfile->section[src].parent)
1258 	    {
1259 	      printf (" section %6s 0x%08x..0x%08x\n",
1260 		      sfile->section[src].parent->name,
1261 		      du.address[dst],
1262 		      du.address[dst] + du.length[dst] - 1);
1263 	    }
1264 	}
1265 
1266       du.sections = dst + 1;
1267     }
1268 
1269   du.tool = "c_gcc";
1270   du.date = DATE;
1271 
1272   sysroff_swap_du_out (file, &du);
1273 }
1274 
1275 static void
1276 wr_dus (struct coff_ofile *p ATTRIBUTE_UNUSED, struct coff_sfile *sfile)
1277 {
1278   struct IT_dus dus;
1279 
1280   dus.efn = 0x1001;
1281   dus.ns = 1;			/* p->nsources; sac 14 jul 94 */
1282   dus.drb = nints (dus.ns);
1283   dus.fname = (char **) xcalloc (sizeof (char *), dus.ns);
1284   dus.spare = nints (dus.ns);
1285   dus.ndir = 0;
1286   /* Find the filenames.  */
1287   dus.drb[0] = 0;
1288   dus.fname[0] = sfile->name;
1289 
1290   sysroff_swap_dus_out (file, &dus);
1291 
1292 }
1293 
1294 /* Find the offset of the .text section for this sfile in the
1295    .text section for the output file.  */
1296 
1297 static int
1298 find_base (struct coff_sfile *sfile, struct coff_section *section)
1299 {
1300   return sfile->section[section->number].low;
1301 }
1302 
1303 static void
1304 wr_dln (struct coff_ofile *p ATTRIBUTE_UNUSED, struct coff_sfile *sfile,
1305 	int n ATTRIBUTE_UNUSED)
1306 {
1307   /* Count up all the linenumbers */
1308 
1309   struct coff_symbol *sy;
1310   int lc = 0;
1311   struct IT_dln dln;
1312 
1313   int idx;
1314 
1315   for (sy = sfile->scope->vars_head;
1316        sy;
1317        sy = sy->next)
1318     {
1319       struct coff_type *t = sy->type;
1320       if (t->type == coff_function_type)
1321 	{
1322 	  struct coff_line *l = t->u.function.lines;
1323 	  if (l)
1324 	    lc += l->nlines;
1325 	}
1326     }
1327 
1328   dln.sfn = nints (lc);
1329   dln.sln = nints (lc);
1330   dln.cc = nints (lc);
1331   dln.section = nints (lc);
1332 
1333   dln.from_address = nints (lc);
1334   dln.to_address = nints (lc);
1335 
1336 
1337   dln.neg = 0x1001;
1338 
1339   dln.nln = lc;
1340 
1341   /* Run through once more and fill up the structure */
1342   idx = 0;
1343   for (sy = sfile->scope->vars_head;
1344        sy;
1345        sy = sy->next)
1346     {
1347       if (sy->type->type == coff_function_type)
1348 	{
1349 	  int i;
1350 	  struct coff_line *l = sy->type->u.function.lines;
1351 	  if (l)
1352 	    {
1353 	      int base = find_base (sfile, sy->where->section);
1354 	      for (i = 0; i < l->nlines; i++)
1355 		{
1356 		  dln.section[idx] = sy->where->section->number;
1357 		  dln.sfn[idx] = 0;
1358 		  dln.sln[idx] = l->lines[i];
1359 		  dln.from_address[idx] =
1360 		    l->addresses[i] + sy->where->section->address - base;
1361 		  dln.cc[idx] = 0;
1362 		  if (idx)
1363 		    dln.to_address[idx - 1] = dln.from_address[idx];
1364 		  idx++;
1365 
1366 		}
1367 	      dln.to_address[idx - 1] = dln.from_address[idx - 1] + 2;
1368 	    }
1369 	}
1370     }
1371   if (lc)
1372     sysroff_swap_dln_out (file, &dln);
1373 }
1374 
1375 /* Write the global symbols out to the debug info.  */
1376 
1377 static void
1378 wr_globals (struct coff_ofile *p, struct coff_sfile *sfile,
1379 	    int n ATTRIBUTE_UNUSED)
1380 {
1381   struct coff_symbol *sy;
1382 
1383   for (sy = p->symbol_list_head;
1384        sy;
1385        sy = sy->next_in_ofile_list)
1386     {
1387       if (sy->visible->type == coff_vis_ext_def
1388 	  || sy->visible->type == coff_vis_ext_ref)
1389 	{
1390 	  /* Only write out symbols if they belong to
1391 	     the current source file.  */
1392 	  if (sy->sfile == sfile)
1393 	    walk_tree_symbol (sfile, 0, sy, 0);
1394 	}
1395     }
1396 }
1397 
1398 static void
1399 wr_debug (struct coff_ofile *p)
1400 {
1401   struct coff_sfile *sfile;
1402   int n = 0;
1403 
1404   for (sfile = p->source_head;
1405        sfile;
1406        sfile = sfile->next)
1407     {
1408       if (debug)
1409 	printf ("%s\n", sfile->name);
1410 
1411       wr_du (p, sfile, n);
1412       wr_dus (p, sfile);
1413       wr_program_structure (p, sfile);
1414       wr_dln (p, sfile, n);
1415       n++;
1416     }
1417 }
1418 
1419 static void
1420 wr_cs (void)
1421 {
1422   /* It seems that the CS struct is not normal - the size is wrong
1423      heres one I prepared earlier.  */
1424   static char b[] =
1425     {
1426     0x80,			/* IT */
1427     0x21,			/* RL */
1428     0x00,			/* number of chars in variable length part */
1429     0x80,			/* hd */
1430     0x00,			/* hs */
1431     0x80,			/* un */
1432     0x00,			/* us */
1433     0x80,			/* sc */
1434     0x00,			/* ss */
1435     0x80,			/* er */
1436     0x80,			/* ed */
1437     0x80,			/* sh */
1438     0x80,			/* ob */
1439     0x80,			/* rl */
1440     0x80,			/* du */
1441     0x80,			/* dps */
1442     0x80,			/* dsy */
1443     0x80,			/* dty */
1444     0x80,			/* dln */
1445     0x80,			/* dso */
1446     0x80,			/* dus */
1447     0x00,			/* dss */
1448     0x80,			/* dbt */
1449     0x00,			/* dpp */
1450     0x80,			/* dfp */
1451     0x80,			/* den */
1452     0x80,			/* dds */
1453     0x80,			/* dar */
1454     0x80,			/* dpt */
1455     0x00,			/* dul */
1456     0x00,			/* dse */
1457     0x00,			/* dot */
1458     0xDE			/* CS */
1459   };
1460 
1461   if (fwrite (b, sizeof (b), 1, file) != 1)
1462     /* FIXME: Return error status.  */
1463     abort ();
1464 }
1465 
1466 /* Write out the SC records for a unit.  Create an SC
1467    for all the sections which appear in the output file, even
1468    if there isn't an equivalent one on the input.  */
1469 
1470 static int
1471 wr_sc (struct coff_ofile *ptr, struct coff_sfile *sfile)
1472 {
1473   int i;
1474   int scount = 0;
1475   /* First work out the total number of sections.  */
1476   int total_sec = ptr->nsections;
1477   struct myinfo
1478     {
1479       struct coff_section *sec;
1480       struct coff_symbol *symbol;
1481     };
1482   struct coff_symbol *symbol;
1483   struct myinfo *info
1484     = (struct myinfo *) calloc (total_sec, sizeof (struct myinfo));
1485 
1486 
1487   for (i = 0; i < total_sec; i++)
1488     {
1489       info[i].sec = ptr->sections + i;
1490       info[i].symbol = 0;
1491     }
1492 
1493   for (symbol = sfile->scope->vars_head;
1494        symbol;
1495        symbol = symbol->next)
1496     {
1497 
1498       if (symbol->type->type == coff_secdef_type)
1499 	{
1500 	  for (i = 0; i < total_sec; i++)
1501 	    {
1502 	      if (symbol->where->section == info[i].sec)
1503 		{
1504 		  info[i].symbol = symbol;
1505 		  break;
1506 		}
1507 	    }
1508 	}
1509     }
1510 
1511   /* Now output all the section info, and fake up some stuff for sections
1512      we don't have.  */
1513   for (i = 1; i < total_sec; i++)
1514     {
1515       struct IT_sc sc;
1516       char *name;
1517 
1518       symbol = info[i].symbol;
1519       sc.spare = 0;
1520       sc.spare1 = 0;
1521 
1522       if (!symbol)
1523 	{
1524 	  /* Don't have a symbol set aside for this section, which means
1525 	     that nothing in this file does anything for the section.  */
1526 	  sc.format = !(bfd_get_file_flags (abfd) & EXEC_P);
1527 	  sc.addr = 0;
1528 	  sc.length = 0;
1529 	  name = info[i].sec->name;
1530 	}
1531       else
1532 	{
1533 	  if (bfd_get_file_flags (abfd) & EXEC_P)
1534 	    {
1535 	      sc.format = 0;
1536 	      sc.addr = symbol->where->offset;
1537 	    }
1538 	  else
1539 	    {
1540 	      sc.format = 1;
1541 	      sc.addr = 0;
1542 	    }
1543 	  sc.length = symbol->type->size;
1544 	  name = symbol->name;
1545 	}
1546 
1547       sc.align = 4;
1548       sc.concat = CONCAT_SIMPLE;
1549       sc.read = 3;
1550       sc.write = 3;
1551       sc.exec = 3;
1552       sc.init = 3;
1553       sc.mode = 3;
1554       sc.spare = 0;
1555       sc.segadd = 0;
1556       sc.spare1 = 0;		/* If not zero, then it doesn't work.  */
1557       sc.name = section_translate (name);
1558 
1559       if (strlen (sc.name) == 1)
1560 	{
1561 	  switch (sc.name[0])
1562 	    {
1563 	    case 'D':
1564 	    case 'B':
1565 	      sc.contents = CONTENTS_DATA;
1566 	      break;
1567 
1568 	    default:
1569 	      sc.contents = CONTENTS_CODE;
1570 	    }
1571 	}
1572       else
1573 	{
1574 	  sc.contents = CONTENTS_CODE;
1575 	}
1576 
1577       sysroff_swap_sc_out (file, &sc);
1578       scount++;
1579     }
1580   return scount;
1581 }
1582 
1583 /* Write out the ER records for a unit.  */
1584 
1585 static void
1586 wr_er (struct coff_ofile *ptr, struct coff_sfile *sfile ATTRIBUTE_UNUSED,
1587        int first)
1588 {
1589   int idx = 0;
1590   struct coff_symbol *sym;
1591 
1592   if (first)
1593     {
1594       for (sym = ptr->symbol_list_head; sym; sym = sym->next_in_ofile_list)
1595 	{
1596 	  if (sym->visible->type == coff_vis_ext_ref)
1597 	    {
1598 	      struct IT_er er;
1599 
1600 	      er.spare = 0;
1601 	      er.type = ER_NOTSPEC;
1602 	      er.name = sym->name;
1603 	      sysroff_swap_er_out (file, &er);
1604 	      sym->er_number = idx++;
1605 	    }
1606 	}
1607     }
1608 }
1609 
1610 /* Write out the ED records for a unit.  */
1611 
1612 static void
1613 wr_ed (struct coff_ofile *ptr, struct coff_sfile *sfile ATTRIBUTE_UNUSED,
1614        int first)
1615 {
1616   struct coff_symbol *s;
1617 
1618   if (first)
1619     {
1620       for (s = ptr->symbol_list_head; s; s = s->next_in_ofile_list)
1621 	{
1622 	  if (s->visible->type == coff_vis_ext_def
1623 	      || s->visible->type == coff_vis_common)
1624 	    {
1625 	      struct IT_ed ed;
1626 
1627 	      ed.section = s->where->section->number;
1628 	      ed.spare = 0;
1629 
1630 	      if (s->where->section->data)
1631 		{
1632 		  ed.type = ED_TYPE_DATA;
1633 		}
1634 	      else if (s->where->section->code & SEC_CODE)
1635 		{
1636 		  ed.type = ED_TYPE_ENTRY;
1637 		}
1638 	      else
1639 		{
1640 		  ed.type = ED_TYPE_NOTSPEC;
1641 		  ed.type = ED_TYPE_DATA;
1642 		}
1643 
1644 	      ed.address = s->where->offset - s->where->section->address;
1645 	      ed.name = s->name;
1646 	      sysroff_swap_ed_out (file, &ed);
1647 	    }
1648 	}
1649     }
1650 }
1651 
1652 static void
1653 wr_unit_info (struct coff_ofile *ptr)
1654 {
1655   struct coff_sfile *sfile;
1656   int first = 1;
1657 
1658   for (sfile = ptr->source_head;
1659        sfile;
1660        sfile = sfile->next)
1661     {
1662       long p1;
1663       long p2;
1664       int nsecs;
1665 
1666       p1 = ftell (file);
1667       wr_un (ptr, sfile, first, 0);
1668       nsecs = wr_sc (ptr, sfile);
1669       p2 = ftell (file);
1670       fseek (file, p1, SEEK_SET);
1671       wr_un (ptr, sfile, first, nsecs);
1672       fseek (file, p2, SEEK_SET);
1673       wr_er (ptr, sfile, first);
1674       wr_ed (ptr, sfile, first);
1675       first = 0;
1676     }
1677 }
1678 
1679 static void
1680 wr_module (struct coff_ofile *p)
1681 {
1682   wr_cs ();
1683   wr_hd (p);
1684   wr_unit_info (p);
1685   wr_object_body (p);
1686   wr_debug (p);
1687   wr_tr ();
1688 }
1689 
1690 static int
1691 align (int x)
1692 {
1693   return (x + 3) & ~3;
1694 }
1695 
1696 /* Find all the common variables and turn them into
1697    ordinary defs - dunno why, but thats what hitachi does with 'em.  */
1698 
1699 static void
1700 prescan (struct coff_ofile *tree)
1701 {
1702   struct coff_symbol *s;
1703   struct coff_section *common_section;
1704 
1705   /* Find the common section - always section 3.  */
1706   common_section = tree->sections + 3;
1707 
1708   for (s = tree->symbol_list_head;
1709        s;
1710        s = s->next_in_ofile_list)
1711     {
1712       if (s->visible->type == coff_vis_common)
1713 	{
1714 	  struct coff_where *w = s->where;
1715 	  /*      s->visible->type = coff_vis_ext_def; leave it as common */
1716 	  common_section->size = align (common_section->size);
1717 	  w->offset = common_section->size + common_section->address;
1718 	  w->section = common_section;
1719 	  common_section->size += s->type->size;
1720 	  common_section->size = align (common_section->size);
1721 	}
1722     }
1723 }
1724 
1725 char *program_name;
1726 
1727 static void
1728 show_usage (FILE *file, int status)
1729 {
1730   fprintf (file, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name);
1731   fprintf (file, _("Convert a COFF object file into a SYSROFF object file\n"));
1732   fprintf (file, _(" The options are:\n\
1733   -q --quick       (Obsolete - ignored)\n\
1734   -n --noprescan   Do not perform a scan to convert commons into defs\n\
1735   -d --debug       Display information about what is being done\n\
1736   @<file>          Read options from <file>\n\
1737   -h --help        Display this information\n\
1738   -v --version     Print the program's version number\n"));
1739 
1740   if (REPORT_BUGS_TO[0] && status == 0)
1741     fprintf (file, _("Report bugs to %s\n"), REPORT_BUGS_TO);
1742   exit (status);
1743 }
1744 
1745 int
1746 main (int ac, char **av)
1747 {
1748   int opt;
1749   static struct option long_options[] =
1750   {
1751     {"debug", no_argument, 0, 'd'},
1752     {"quick", no_argument, 0, 'q'},
1753     {"noprescan", no_argument, 0, 'n'},
1754     {"help", no_argument, 0, 'h'},
1755     {"version", no_argument, 0, 'V'},
1756     {NULL, no_argument, 0, 0}
1757   };
1758   char **matching;
1759   char *input_file;
1760   char *output_file;
1761 
1762 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
1763   setlocale (LC_MESSAGES, "");
1764 #endif
1765 #if defined (HAVE_SETLOCALE)
1766   setlocale (LC_CTYPE, "");
1767 #endif
1768   bindtextdomain (PACKAGE, LOCALEDIR);
1769   textdomain (PACKAGE);
1770 
1771   program_name = av[0];
1772   xmalloc_set_program_name (program_name);
1773 
1774   expandargv (&ac, &av);
1775 
1776   while ((opt = getopt_long (ac, av, "dHhVvqn", long_options,
1777 			     (int *) NULL))
1778 	 != EOF)
1779     {
1780       switch (opt)
1781 	{
1782 	case 'q':
1783 	  quick = 1;
1784 	  break;
1785 	case 'n':
1786 	  noprescan = 1;
1787 	  break;
1788 	case 'd':
1789 	  debug = 1;
1790 	  break;
1791 	case 'H':
1792 	case 'h':
1793 	  show_usage (stdout, 0);
1794 	  /*NOTREACHED */
1795 	case 'v':
1796 	case 'V':
1797 	  print_version ("srconv");
1798 	  exit (0);
1799 	  /*NOTREACHED */
1800 	case 0:
1801 	  break;
1802 	default:
1803 	  show_usage (stderr, 1);
1804 	  /*NOTREACHED */
1805 	}
1806     }
1807 
1808   /* The input and output files may be named on the command line.  */
1809   output_file = NULL;
1810   if (optind < ac)
1811     {
1812       input_file = av[optind];
1813       ++optind;
1814       if (optind < ac)
1815 	{
1816 	  output_file = av[optind];
1817 	  ++optind;
1818 	  if (optind < ac)
1819 	    show_usage (stderr, 1);
1820 	  if (strcmp (input_file, output_file) == 0)
1821 	    {
1822 	      fatal (_("input and output files must be different"));
1823 	    }
1824 	}
1825     }
1826   else
1827     input_file = 0;
1828 
1829   if (!input_file)
1830     {
1831       fatal (_("no input file specified"));
1832     }
1833 
1834   if (!output_file)
1835     {
1836       /* Take a .o off the input file and stick on a .obj.  If
1837          it doesn't end in .o, then stick a .obj on anyway */
1838 
1839       int len = strlen (input_file);
1840 
1841       output_file = xmalloc (len + 5);
1842       strcpy (output_file, input_file);
1843 
1844       if (len > 3
1845 	  && output_file[len - 2] == '.'
1846 	  && output_file[len - 1] == 'o')
1847 	{
1848 	  output_file[len] = 'b';
1849 	  output_file[len + 1] = 'j';
1850 	  output_file[len + 2] = 0;
1851 	}
1852       else
1853 	{
1854 	  strcat (output_file, ".obj");
1855 	}
1856     }
1857 
1858   abfd = bfd_openr (input_file, 0);
1859 
1860   if (!abfd)
1861     bfd_fatal (input_file);
1862 
1863   if (!bfd_check_format_matches (abfd, bfd_object, &matching))
1864     {
1865       bfd_nonfatal (input_file);
1866 
1867       if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
1868 	{
1869 	  list_matching_formats (matching);
1870 	  free (matching);
1871 	}
1872       exit (1);
1873     }
1874 
1875   file = fopen (output_file, FOPEN_WB);
1876 
1877   if (!file)
1878     fatal (_("unable to open output file %s"), output_file);
1879 
1880   if (debug)
1881     printf ("ids %d %d\n", base1, base2);
1882 
1883   tree = coff_grok (abfd);
1884 
1885   if (!noprescan)
1886     prescan (tree);
1887 
1888   wr_module (tree);
1889   return 0;
1890 }
1891