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      1 /* srconv.c -- Sysroff conversion program
      2    Copyright (C) 1994-2014 Free Software Foundation, Inc.
      3 
      4    This file is part of GNU Binutils.
      5 
      6    This program is free software; you can redistribute it and/or modify
      7    it under the terms of the GNU General Public License as published by
      8    the Free Software Foundation; either version 3 of the License, or
      9    (at your option) any later version.
     10 
     11    This program is distributed in the hope that it will be useful,
     12    but WITHOUT ANY WARRANTY; without even the implied warranty of
     13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14    GNU General Public License for more details.
     15 
     16    You should have received a copy of the GNU General Public License
     17    along with this program; if not, write to the Free Software
     18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
     19    02110-1301, USA.  */
     20 
     21 /* Written by Steve Chamberlain (sac (at) cygnus.com)
     22 
     23    This program can be used to convert a coff object file
     24    into a Hitachi OM/LM (Sysroff) format.
     25 
     26    All debugging information is preserved */
     27 
     28 #include "sysdep.h"
     29 #include "bfd.h"
     30 #include "bucomm.h"
     31 #include "sysroff.h"
     32 #include "coffgrok.h"
     33 #include "libiberty.h"
     34 #include "filenames.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 *ffile, unsigned char *ptr, int size, int ccode)
    162 {
    163   int j;
    164   int last;
    165   int sum = 0;
    166   int bytes = size / 8;
    167 
    168   last = !(ccode & 0xff00);
    169   if (size & 0x7)
    170     abort ();
    171   ptr[0] = ccode | (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, ffile) != 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 *ffile)
    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 (ffile, 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 *ffile)
    246 {
    247   int i;
    248 
    249   writeINT (data.len, ptr, idx, 1, ffile);
    250   for (i = 0; i < data.len; i++)
    251     writeINT (data.data[i], ptr, idx, 1, ffile);
    252 }
    253 
    254 static void
    255 writeCHARS (char *string, unsigned char *ptr, int *idx, int size, FILE *ffile)
    256 {
    257   int i = *idx / 8;
    258 
    259   if (i > 240)
    260     {
    261       /* Lets write out that record and do another one.  */
    262       checksum (ffile, 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   free (info);
   1581   return scount;
   1582 }
   1583 
   1584 /* Write out the ER records for a unit.  */
   1585 
   1586 static void
   1587 wr_er (struct coff_ofile *ptr, struct coff_sfile *sfile ATTRIBUTE_UNUSED,
   1588        int first)
   1589 {
   1590   int idx = 0;
   1591   struct coff_symbol *sym;
   1592 
   1593   if (first)
   1594     {
   1595       for (sym = ptr->symbol_list_head; sym; sym = sym->next_in_ofile_list)
   1596 	{
   1597 	  if (sym->visible->type == coff_vis_ext_ref)
   1598 	    {
   1599 	      struct IT_er er;
   1600 
   1601 	      er.spare = 0;
   1602 	      er.type = ER_NOTSPEC;
   1603 	      er.name = sym->name;
   1604 	      sysroff_swap_er_out (file, &er);
   1605 	      sym->er_number = idx++;
   1606 	    }
   1607 	}
   1608     }
   1609 }
   1610 
   1611 /* Write out the ED records for a unit.  */
   1612 
   1613 static void
   1614 wr_ed (struct coff_ofile *ptr, struct coff_sfile *sfile ATTRIBUTE_UNUSED,
   1615        int first)
   1616 {
   1617   struct coff_symbol *s;
   1618 
   1619   if (first)
   1620     {
   1621       for (s = ptr->symbol_list_head; s; s = s->next_in_ofile_list)
   1622 	{
   1623 	  if (s->visible->type == coff_vis_ext_def
   1624 	      || s->visible->type == coff_vis_common)
   1625 	    {
   1626 	      struct IT_ed ed;
   1627 
   1628 	      ed.section = s->where->section->number;
   1629 	      ed.spare = 0;
   1630 
   1631 	      if (s->where->section->data)
   1632 		{
   1633 		  ed.type = ED_TYPE_DATA;
   1634 		}
   1635 	      else if (s->where->section->code & SEC_CODE)
   1636 		{
   1637 		  ed.type = ED_TYPE_ENTRY;
   1638 		}
   1639 	      else
   1640 		{
   1641 		  ed.type = ED_TYPE_NOTSPEC;
   1642 		  ed.type = ED_TYPE_DATA;
   1643 		}
   1644 
   1645 	      ed.address = s->where->offset - s->where->section->address;
   1646 	      ed.name = s->name;
   1647 	      sysroff_swap_ed_out (file, &ed);
   1648 	    }
   1649 	}
   1650     }
   1651 }
   1652 
   1653 static void
   1654 wr_unit_info (struct coff_ofile *ptr)
   1655 {
   1656   struct coff_sfile *sfile;
   1657   int first = 1;
   1658 
   1659   for (sfile = ptr->source_head;
   1660        sfile;
   1661        sfile = sfile->next)
   1662     {
   1663       long p1;
   1664       long p2;
   1665       int nsecs;
   1666 
   1667       p1 = ftell (file);
   1668       wr_un (ptr, sfile, first, 0);
   1669       nsecs = wr_sc (ptr, sfile);
   1670       p2 = ftell (file);
   1671       fseek (file, p1, SEEK_SET);
   1672       wr_un (ptr, sfile, first, nsecs);
   1673       fseek (file, p2, SEEK_SET);
   1674       wr_er (ptr, sfile, first);
   1675       wr_ed (ptr, sfile, first);
   1676       first = 0;
   1677     }
   1678 }
   1679 
   1680 static void
   1681 wr_module (struct coff_ofile *p)
   1682 {
   1683   wr_cs ();
   1684   wr_hd (p);
   1685   wr_unit_info (p);
   1686   wr_object_body (p);
   1687   wr_debug (p);
   1688   wr_tr ();
   1689 }
   1690 
   1691 static int
   1692 align (int x)
   1693 {
   1694   return (x + 3) & ~3;
   1695 }
   1696 
   1697 /* Find all the common variables and turn them into
   1698    ordinary defs - dunno why, but thats what hitachi does with 'em.  */
   1699 
   1700 static void
   1701 prescan (struct coff_ofile *otree)
   1702 {
   1703   struct coff_symbol *s;
   1704   struct coff_section *common_section;
   1705 
   1706   /* Find the common section - always section 3.  */
   1707   common_section = otree->sections + 3;
   1708 
   1709   for (s = otree->symbol_list_head;
   1710        s;
   1711        s = s->next_in_ofile_list)
   1712     {
   1713       if (s->visible->type == coff_vis_common)
   1714 	{
   1715 	  struct coff_where *w = s->where;
   1716 
   1717 	  /*      s->visible->type = coff_vis_ext_def; leave it as common */
   1718 	  common_section->size = align (common_section->size);
   1719 	  w->offset = common_section->size + common_section->address;
   1720 	  w->section = common_section;
   1721 	  common_section->size += s->type->size;
   1722 	  common_section->size = align (common_section->size);
   1723 	}
   1724     }
   1725 }
   1726 
   1727 char *program_name;
   1728 
   1729 static void
   1730 show_usage (FILE *ffile, int status)
   1731 {
   1732   fprintf (ffile, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name);
   1733   fprintf (ffile, _("Convert a COFF object file into a SYSROFF object file\n"));
   1734   fprintf (ffile, _(" The options are:\n\
   1735   -q --quick       (Obsolete - ignored)\n\
   1736   -n --noprescan   Do not perform a scan to convert commons into defs\n\
   1737   -d --debug       Display information about what is being done\n\
   1738   @<file>          Read options from <file>\n\
   1739   -h --help        Display this information\n\
   1740   -v --version     Print the program's version number\n"));
   1741 
   1742   if (REPORT_BUGS_TO[0] && status == 0)
   1743     fprintf (ffile, _("Report bugs to %s\n"), REPORT_BUGS_TO);
   1744   exit (status);
   1745 }
   1746 
   1747 int
   1748 main (int ac, char **av)
   1749 {
   1750   int opt;
   1751   static struct option long_options[] =
   1752   {
   1753     {"debug", no_argument, 0, 'd'},
   1754     {"quick", no_argument, 0, 'q'},
   1755     {"noprescan", no_argument, 0, 'n'},
   1756     {"help", no_argument, 0, 'h'},
   1757     {"version", no_argument, 0, 'V'},
   1758     {NULL, no_argument, 0, 0}
   1759   };
   1760   char **matching;
   1761   char *input_file;
   1762   char *output_file;
   1763 
   1764 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
   1765   setlocale (LC_MESSAGES, "");
   1766 #endif
   1767 #if defined (HAVE_SETLOCALE)
   1768   setlocale (LC_CTYPE, "");
   1769 #endif
   1770   bindtextdomain (PACKAGE, LOCALEDIR);
   1771   textdomain (PACKAGE);
   1772 
   1773   program_name = av[0];
   1774   xmalloc_set_program_name (program_name);
   1775 
   1776   expandargv (&ac, &av);
   1777 
   1778   while ((opt = getopt_long (ac, av, "dHhVvqn", long_options,
   1779 			     (int *) NULL))
   1780 	 != EOF)
   1781     {
   1782       switch (opt)
   1783 	{
   1784 	case 'q':
   1785 	  quick = 1;
   1786 	  break;
   1787 	case 'n':
   1788 	  noprescan = 1;
   1789 	  break;
   1790 	case 'd':
   1791 	  debug = 1;
   1792 	  break;
   1793 	case 'H':
   1794 	case 'h':
   1795 	  show_usage (stdout, 0);
   1796 	  /*NOTREACHED */
   1797 	case 'v':
   1798 	case 'V':
   1799 	  print_version ("srconv");
   1800 	  exit (0);
   1801 	  /*NOTREACHED */
   1802 	case 0:
   1803 	  break;
   1804 	default:
   1805 	  show_usage (stderr, 1);
   1806 	  /*NOTREACHED */
   1807 	}
   1808     }
   1809 
   1810   /* The input and output files may be named on the command line.  */
   1811   output_file = NULL;
   1812   if (optind < ac)
   1813     {
   1814       input_file = av[optind];
   1815       ++optind;
   1816       if (optind < ac)
   1817 	{
   1818 	  output_file = av[optind];
   1819 	  ++optind;
   1820 	  if (optind < ac)
   1821 	    show_usage (stderr, 1);
   1822 	  if (filename_cmp (input_file, output_file) == 0)
   1823 	    {
   1824 	      fatal (_("input and output files must be different"));
   1825 	    }
   1826 	}
   1827     }
   1828   else
   1829     input_file = 0;
   1830 
   1831   if (!input_file)
   1832     {
   1833       fatal (_("no input file specified"));
   1834     }
   1835 
   1836   if (!output_file)
   1837     {
   1838       /* Take a .o off the input file and stick on a .obj.  If
   1839          it doesn't end in .o, then stick a .obj on anyway */
   1840 
   1841       int len = strlen (input_file);
   1842 
   1843       output_file = xmalloc (len + 5);
   1844       strcpy (output_file, input_file);
   1845 
   1846       if (len > 3
   1847 	  && output_file[len - 2] == '.'
   1848 	  && output_file[len - 1] == 'o')
   1849 	{
   1850 	  output_file[len] = 'b';
   1851 	  output_file[len + 1] = 'j';
   1852 	  output_file[len + 2] = 0;
   1853 	}
   1854       else
   1855 	{
   1856 	  strcat (output_file, ".obj");
   1857 	}
   1858     }
   1859 
   1860   abfd = bfd_openr (input_file, 0);
   1861 
   1862   if (!abfd)
   1863     bfd_fatal (input_file);
   1864 
   1865   if (!bfd_check_format_matches (abfd, bfd_object, &matching))
   1866     {
   1867       bfd_nonfatal (input_file);
   1868 
   1869       if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
   1870 	{
   1871 	  list_matching_formats (matching);
   1872 	  free (matching);
   1873 	}
   1874       exit (1);
   1875     }
   1876 
   1877   file = fopen (output_file, FOPEN_WB);
   1878 
   1879   if (!file)
   1880     fatal (_("unable to open output file %s"), output_file);
   1881 
   1882   if (debug)
   1883     printf ("ids %d %d\n", base1, base2);
   1884 
   1885   tree = coff_grok (abfd);
   1886 
   1887   if (!noprescan)
   1888     prescan (tree);
   1889 
   1890   wr_module (tree);
   1891   return 0;
   1892 }
   1893