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      1 /* srconv.c -- Sysroff conversion program
      2    Copyright (C) 1994-2016 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     fatal (_("Checksum failure"));
    171 
    172   ptr[0] = ccode | (last ? 0x80 : 0);
    173   ptr[1] = bytes + 1;
    174 
    175   for (j = 0; j < bytes; j++)
    176     sum += ptr[j];
    177 
    178   /* Glue on a checksum too.  */
    179   ptr[bytes] = ~sum;
    180   if (fwrite (ptr, bytes + 1, 1, ffile) != 1)
    181     /* FIXME: Return error status.  */
    182     fatal (_("Failed to write checksum"));
    183 }
    184 
    185 
    186 static void
    187 writeINT (int n, unsigned char *ptr, int *idx, int size, FILE *ffile)
    188 {
    189   int byte = *idx / 8;
    190 
    191   if (size == -2)
    192     size = addrsize;
    193   else if (size == -1)
    194     size = 0;
    195 
    196   if (byte > 240)
    197     {
    198       /* Lets write out that record and do another one.  */
    199       checksum (ffile, ptr, *idx, code | 0x1000);
    200       *idx = 16;
    201       byte = *idx / 8;
    202     }
    203 
    204   switch (size)
    205     {
    206     case 0:
    207       break;
    208     case 1:
    209       ptr[byte] = n;
    210       break;
    211     case 2:
    212       ptr[byte + 0] = n >> 8;
    213       ptr[byte + 1] = n;
    214       break;
    215     case 4:
    216       ptr[byte + 0] = n >> 24;
    217       ptr[byte + 1] = n >> 16;
    218       ptr[byte + 2] = n >> 8;
    219       ptr[byte + 3] = n >> 0;
    220       break;
    221     default:
    222       fatal (_("Unsupported integer write size: %d"), size);
    223     }
    224   *idx += size * 8;
    225 }
    226 
    227 static void
    228 writeBITS (int val, unsigned char *ptr, int *idx, int size)
    229 {
    230   int byte = *idx / 8;
    231   int bit = *idx % 8;
    232   int old;
    233 
    234   *idx += size;
    235 
    236   old = ptr[byte];
    237   /* Turn off all about to change bits.  */
    238   old &= ~((~0 >> (8 - bit - size)) & ((1 << size) - 1));
    239   /* Turn on the bits we want.  */
    240   old |= (val & ((1 << size) - 1)) << (8 - bit - size);
    241   ptr[byte] = old;
    242 }
    243 
    244 static void
    245 writeBARRAY (barray data, unsigned char *ptr, int *idx,
    246 	     int size ATTRIBUTE_UNUSED, FILE *ffile)
    247 {
    248   int i;
    249 
    250   writeINT (data.len, ptr, idx, 1, ffile);
    251   for (i = 0; i < data.len; i++)
    252     writeINT (data.data[i], ptr, idx, 1, ffile);
    253 }
    254 
    255 static void
    256 writeCHARS (char *string, unsigned char *ptr, int *idx, int size, FILE *ffile)
    257 {
    258   int i = *idx / 8;
    259 
    260   if (i > 240)
    261     {
    262       /* Lets write out that record and do another one.  */
    263       checksum (ffile, ptr, *idx, code | 0x1000);
    264       *idx = 16;
    265       i = *idx / 8;
    266     }
    267 
    268   if (size == 0)
    269     {
    270       /* Variable length string.  */
    271       size = strlen (string);
    272       ptr[i++] = size;
    273     }
    274 
    275   /* BUG WAITING TO HAPPEN.  */
    276   memcpy (ptr + i, string, size);
    277   i += size;
    278   *idx = i * 8;
    279 }
    280 
    281 #define SYSROFF_SWAP_OUT
    282 #include "sysroff.c"
    283 
    284 static char *rname_sh[] =
    285 {
    286   "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", "R8", "R9", "R10", "R11", "R12", "R13", "R14", "R15"
    287 };
    288 
    289 static char *rname_h8300[] =
    290 {
    291   "ER0", "ER1", "ER2", "ER3", "ER4", "ER5", "ER6", "ER7", "PC", "CCR"
    292 };
    293 
    294 static void
    295 wr_tr (void)
    296 {
    297   /* The TR block is not normal - it doesn't have any contents.  */
    298 
    299   static char b[] =
    300     {
    301       0xff,			/* IT */
    302       0x03,			/* RL */
    303       0xfd,			/* CS */
    304     };
    305 
    306   if (fwrite (b, sizeof (b), 1, file) != 1)
    307     /* FIXME: Return error status.  */
    308     fatal (_("Failed to write TR block"));
    309 }
    310 
    311 static void
    312 wr_un (struct coff_ofile *ptr, struct coff_sfile *sfile, int first,
    313        int nsecs ATTRIBUTE_UNUSED)
    314 {
    315   struct IT_un un;
    316   struct coff_symbol *s;
    317 
    318   un.spare1 = 0;
    319 
    320   if (bfd_get_file_flags (abfd) & EXEC_P)
    321     un.format = FORMAT_LM;
    322   else
    323     un.format = FORMAT_OM;
    324   un.spare1 = 0;
    325 
    326   /* Don't count the abs section.  */
    327   un.nsections = ptr->nsections - 1;
    328 
    329   un.nextdefs = 0;
    330   un.nextrefs = 0;
    331   /* Count all the undefined and defined variables with global scope.  */
    332 
    333   if (first)
    334     {
    335       for (s = ptr->symbol_list_head; s; s = s->next_in_ofile_list)
    336 	{
    337 	  if (s->visible->type == coff_vis_ext_def
    338 	      || s->visible->type == coff_vis_common)
    339 	    un.nextdefs++;
    340 
    341 	  if (s->visible->type == coff_vis_ext_ref)
    342 	    un.nextrefs++;
    343 	}
    344     }
    345   un.tool = toolname;
    346   un.tcd = DATE;
    347   un.linker = "L_GX00";
    348   un.lcd = DATE;
    349   un.name = sfile->name;
    350   sysroff_swap_un_out (file, &un);
    351 }
    352 
    353 static void
    354 wr_hd (struct coff_ofile *p)
    355 {
    356   struct IT_hd hd;
    357 
    358   hd.spare1 = 0;
    359   if (bfd_get_file_flags (abfd) & EXEC_P)
    360     hd.mt = MTYPE_ABS_LM;
    361   else
    362     hd.mt = MTYPE_OMS_OR_LMS;
    363 
    364   hd.cd = DATE;
    365 
    366   hd.nu = p->nsources;		/* Always one unit */
    367   hd.code = 0;			/* Always ASCII */
    368   hd.ver = "0200";		/* Version 2.00 */
    369 
    370   switch (bfd_get_arch (abfd))
    371     {
    372     case bfd_arch_h8300:
    373       hd.au = 8;
    374       hd.si = 0;
    375       hd.spcsz = 32;
    376       hd.segsz = 0;
    377       hd.segsh = 0;
    378       switch (bfd_get_mach (abfd))
    379 	{
    380 	case bfd_mach_h8300:
    381 	  hd.cpu = "H8300";
    382 	  hd.afl = 2;
    383 	  addrsize = 2;
    384 	  toolname = "C_H8/300";
    385 	  break;
    386 	case bfd_mach_h8300h:
    387 	  hd.cpu = "H8300H";
    388 	  hd.afl = 4;
    389 	  addrsize = 4;
    390 	  toolname = "C_H8/300H";
    391 	  break;
    392 	case bfd_mach_h8300s:
    393 	  hd.cpu = "H8300S";
    394 	  hd.afl = 4;
    395 	  addrsize = 4;
    396 	  toolname = "C_H8/300S";
    397 	  break;
    398 	default:
    399 	  fatal (_("Unrecognized H8300 sub-architecture: %ld"),
    400 		 bfd_get_mach (abfd));
    401 	}
    402       rnames = rname_h8300;
    403       break;
    404     case bfd_arch_sh:
    405       hd.au = 8;
    406       hd.si = 0;
    407       hd.afl = 4;
    408       hd.spcsz = 32;
    409       hd.segsz = 0;
    410       hd.segsh = 0;
    411       hd.cpu = "SH";
    412       addrsize = 4;
    413       toolname = "C_SH";
    414       rnames = rname_sh;
    415       break;
    416     default:
    417       fatal (_("Unsupported architecture: %d"), bfd_get_arch (abfd));
    418     }
    419 
    420   if (! (bfd_get_file_flags(abfd) & EXEC_P))
    421     {
    422       hd.ep = 0;
    423     }
    424   else
    425     {
    426       hd.ep = 1;
    427       hd.uan = 0;
    428       hd.sa = 0;
    429       hd.sad = 0;
    430       hd.address = bfd_get_start_address (abfd);
    431     }
    432 
    433   hd.os = "";
    434   hd.sys = "";
    435   hd.mn = strip_suffix (bfd_get_filename (abfd));
    436 
    437   sysroff_swap_hd_out (file, &hd);
    438 }
    439 
    440 
    441 static void
    442 wr_sh (struct coff_ofile *p ATTRIBUTE_UNUSED, struct coff_section *sec)
    443 {
    444   struct IT_sh sh;
    445   sh.unit = 0;
    446   sh.section = sec->number;
    447 #ifdef FOOP1
    448   sh.section = 0;
    449 #endif
    450   sysroff_swap_sh_out (file, &sh);
    451 }
    452 
    453 
    454 static void
    455 wr_ob (struct coff_ofile *p ATTRIBUTE_UNUSED, struct coff_section *section)
    456 {
    457   bfd_size_type i;
    458   int first = 1;
    459   unsigned char stuff[200];
    460 
    461   i = 0;
    462   while (i < bfd_get_section_size (section->bfd_section))
    463     {
    464       struct IT_ob ob;
    465       int todo = 200;		/* Copy in 200 byte lumps.  */
    466 
    467       ob.spare = 0;
    468       if (i + todo > bfd_get_section_size (section->bfd_section))
    469 	todo = bfd_get_section_size (section->bfd_section) - i;
    470 
    471       if (first)
    472 	{
    473 	  ob.saf = 1;
    474 	  if (bfd_get_file_flags (abfd) & EXEC_P)
    475 	    ob.address = section->address;
    476 	  else
    477 	    ob.address = 0;
    478 
    479 	  first = 0;
    480 	}
    481       else
    482 	{
    483 	  ob.saf = 0;
    484 	}
    485 
    486       ob.cpf = 0;		/* Never compress.  */
    487       ob.data.len = todo;
    488       bfd_get_section_contents (abfd, section->bfd_section, stuff, i, todo);
    489       ob.data.data = stuff;
    490       sysroff_swap_ob_out (file, &ob /*, i + todo < section->size */ );
    491       i += todo;
    492     }
    493 
    494   /* Now fill the rest with blanks.  */
    495   while (i < (bfd_size_type) section->size)
    496     {
    497       struct IT_ob ob;
    498       int todo = 200;		/* Copy in 200 byte lumps.  */
    499 
    500       ob.spare = 0;
    501       if (i + todo > (bfd_size_type) section->size)
    502 	todo = section->size - i;
    503       ob.saf = 0;
    504 
    505       ob.cpf = 0;		/* Never compress.  */
    506       ob.data.len = todo;
    507       memset (stuff, 0, todo);
    508       ob.data.data = stuff;
    509       sysroff_swap_ob_out (file, &ob);
    510       i += todo;
    511     }
    512   /* Now fill the rest with blanks.  */
    513 }
    514 
    515 static void
    516 wr_rl (struct coff_ofile *ptr ATTRIBUTE_UNUSED, struct coff_section *sec)
    517 {
    518   int nr = sec->nrelocs;
    519   int i;
    520 
    521   for (i = 0; i < nr; i++)
    522     {
    523       struct coff_reloc *r = sec->relocs + i;
    524       struct coff_symbol *ref;
    525       struct IT_rl rl;
    526 
    527       rl.apol = 0;
    528       rl.boundary = 0;
    529       rl.segment = 1;
    530       rl.sign = 0;
    531       rl.check = 0;
    532       rl.addr = r->offset;
    533       rl.bitloc = 0;
    534       rl.flen = 32;		/* SH Specific.  */
    535 
    536       /* What sort of reloc ? Look in the section to find out.  */
    537       ref = r->symbol;
    538       if (ref->visible->type == coff_vis_ext_ref)
    539 	{
    540 	  rl.bcount = 4;	/* Always 4 for us.  */
    541 	  rl.op = OP_EXT_REF;
    542 	  rl.symn = ref->er_number;
    543 	}
    544       else if (ref->visible->type == coff_vis_common)
    545 	{
    546 	  rl.bcount = 11;	/* Always 11 for us.  */
    547 	  rl.op = OP_SEC_REF;
    548 	  rl.secn = ref->where->section->number;
    549 	  rl.copcode_is_3 = 3;
    550 	  rl.alength_is_4 = 4;
    551 	  rl.addend = ref->where->offset - ref->where->section->address;
    552 	  rl.aopcode_is_0x20 = 0x20;
    553 	}
    554       else
    555 	{
    556 	  rl.bcount = 11;	/* Always 11 for us.  */
    557 	  rl.op = OP_SEC_REF;
    558 	  rl.secn = ref->where->section->number;
    559 	  rl.copcode_is_3 = 3;
    560 	  rl.alength_is_4 = 4;
    561 	  rl.addend = -ref->where->section->address;
    562 	  rl.aopcode_is_0x20 = 0x20;
    563 	}
    564 
    565       rl.end = 0xff;
    566 
    567       if (   rl.op == OP_SEC_REF
    568 	  || rl.op == OP_EXT_REF)
    569 	sysroff_swap_rl_out (file, &rl);
    570     }
    571 }
    572 
    573 static void
    574 wr_object_body (struct coff_ofile *p)
    575 {
    576   int i;
    577 
    578   for (i = 1; i < p->nsections; i++)
    579     {
    580       wr_sh (p, p->sections + i);
    581       wr_ob (p, p->sections + i);
    582       wr_rl (p, p->sections + i);
    583     }
    584 }
    585 
    586 static void
    587 wr_dps_start (struct coff_sfile *sfile,
    588 	      struct coff_section *section ATTRIBUTE_UNUSED,
    589 	      struct coff_scope *scope, int type, int nest)
    590 {
    591   struct IT_dps dps;
    592 
    593   dps.end = 0;
    594   dps.opt = 0;
    595   dps.type = type;
    596 
    597   if (scope->sec)
    598     {
    599       dps.san = scope->sec->number;
    600       dps.address = scope->offset - find_base (sfile, scope->sec);
    601       dps.block_size = scope->size;
    602 
    603       if (debug)
    604 	{
    605 	  printf ("DPS %s %d %x\n",
    606 		  sfile->name,
    607 		  nest,
    608 		  dps.address);
    609 	}
    610     }
    611   else
    612     {
    613       dps.san = 0;
    614       dps.address = 0;
    615       dps.block_size = 0;
    616     }
    617 
    618   dps.nesting = nest;
    619   dps.neg = 0x1001;
    620   sysroff_swap_dps_out (file, &dps);
    621 }
    622 
    623 static void
    624 wr_dps_end (struct coff_section *section ATTRIBUTE_UNUSED,
    625 	    struct coff_scope *scope ATTRIBUTE_UNUSED, int type)
    626 {
    627   struct IT_dps dps;
    628 
    629   dps.end = 1;
    630   dps.type = type;
    631   sysroff_swap_dps_out (file, &dps);
    632 }
    633 
    634 static int *
    635 nints (int x)
    636 {
    637   return (int *) (xcalloc (sizeof (int), x));
    638 }
    639 
    640 static void
    641 walk_tree_type_1 (struct coff_sfile *sfile, struct coff_symbol *symbol,
    642 		  struct coff_type *type, int nest)
    643 {
    644   switch (type->type)
    645     {
    646     case coff_secdef_type:
    647     case coff_basic_type:
    648       {
    649 	struct IT_dbt dbt;
    650 
    651 	switch (type->u.basic)
    652 	  {
    653 	  case T_NULL:
    654 	  case T_VOID:
    655 	    dbt.btype = BTYPE_VOID;
    656 	    dbt.sign = BTYPE_UNSPEC;
    657 	    dbt.fptype = FPTYPE_NOTSPEC;
    658 	    break;
    659 
    660 	  case T_CHAR:
    661 	    dbt.btype = BTYPE_CHAR;
    662 	    dbt.sign = BTYPE_UNSPEC;
    663 	    dbt.fptype = FPTYPE_NOTSPEC;
    664 	    break;
    665 
    666 	  case T_SHORT:
    667 	  case T_INT:
    668 	  case T_LONG:
    669 	    dbt.btype = BTYPE_INT;
    670 	    dbt.sign = SIGN_SIGNED;
    671 	    dbt.fptype = FPTYPE_NOTSPEC;
    672 	    break;
    673 
    674 	  case T_FLOAT:
    675 	    dbt.btype = BTYPE_FLOAT;
    676 	    dbt.fptype = FPTYPE_SINGLE;
    677 	    break;
    678 
    679 	  case T_DOUBLE:
    680 	    dbt.btype = BTYPE_FLOAT;
    681 	    dbt.fptype = FPTYPE_DOUBLE;
    682 	    break;
    683 
    684 	  case T_LNGDBL:
    685 	    dbt.btype = BTYPE_FLOAT;
    686 	    dbt.fptype = FPTYPE_EXTENDED;
    687 	    break;
    688 
    689 	  case T_UCHAR:
    690 	    dbt.btype = BTYPE_CHAR;
    691 	    dbt.sign = SIGN_UNSIGNED;
    692 	    dbt.fptype = FPTYPE_NOTSPEC;
    693 	    break;
    694 
    695 	  case T_USHORT:
    696 	  case T_UINT:
    697 	  case T_ULONG:
    698 	    dbt.btype = BTYPE_INT;
    699 	    dbt.sign = SIGN_UNSIGNED;
    700 	    dbt.fptype = FPTYPE_NOTSPEC;
    701 	    break;
    702 	  }
    703 
    704 	dbt.bitsize = type->size;
    705 	dbt.neg = 0x1001;
    706 	sysroff_swap_dbt_out (file, &dbt);
    707 	break;
    708       }
    709 
    710     case coff_pointer_type:
    711       {
    712 	struct IT_dpt dpt;
    713 
    714 	dpt.dunno = 0;
    715 	walk_tree_type_1 (sfile, symbol, type->u.pointer.points_to, nest + 1);
    716 	dpt.neg = 0x1001;
    717 	sysroff_swap_dpt_out (file, &dpt);
    718 	break;
    719       }
    720 
    721     case coff_function_type:
    722       {
    723 	struct IT_dfp dfp;
    724 	struct coff_symbol *param;
    725 
    726 	dfp.end = 0;
    727 	dfp.spare = 0;
    728 	dfp.nparams = type->u.function.parameters->nvars;
    729 	dfp.neg = 0x1001;
    730 
    731 	walk_tree_type_1 (sfile, symbol, type->u.function.function_returns, nest + 1);
    732 
    733 	sysroff_swap_dfp_out (file, &dfp);
    734 
    735 	for (param = type->u.function.parameters->vars_head;
    736 	     param;
    737 	     param = param->next)
    738 	  walk_tree_symbol (sfile, 0, param, nest);
    739 
    740 	dfp.end = 1;
    741 	sysroff_swap_dfp_out (file, &dfp);
    742 	break;
    743       }
    744 
    745     case coff_structdef_type:
    746       {
    747 	struct IT_dbt dbt;
    748 	struct IT_dds dds;
    749 	struct coff_symbol *member;
    750 
    751 	dds.spare = 0;
    752 	dbt.btype = BTYPE_STRUCT;
    753 	dbt.bitsize = type->size;
    754 	dbt.sign = SIGN_UNSPEC;
    755 	dbt.fptype = FPTYPE_NOTSPEC;
    756 	dbt.sid = get_member_id (type->u.astructdef.idx);
    757 	dbt.neg = 0x1001;
    758 	sysroff_swap_dbt_out (file, &dbt);
    759 	dds.end = 0;
    760 	dds.neg = 0x1001;
    761 	sysroff_swap_dds_out (file, &dds);
    762 
    763 	for (member = type->u.astructdef.elements->vars_head;
    764 	     member;
    765 	     member = member->next)
    766 	  walk_tree_symbol (sfile, 0, member, nest + 1);
    767 
    768 	dds.end = 1;
    769 	sysroff_swap_dds_out (file, &dds);
    770 
    771       }
    772       break;
    773 
    774     case coff_structref_type:
    775       {
    776 	struct IT_dbt dbt;
    777 
    778 	dbt.btype = BTYPE_TAG;
    779 	dbt.bitsize = type->size;
    780 	dbt.sign = SIGN_UNSPEC;
    781 	dbt.fptype = FPTYPE_NOTSPEC;
    782 
    783 	if (type->u.astructref.ref)
    784 	  dbt.sid = get_member_id (type->u.astructref.ref->number);
    785 	else
    786 	  dbt.sid = 0;
    787 
    788 	dbt.neg = 0x1001;
    789 	sysroff_swap_dbt_out (file, &dbt);
    790       }
    791       break;
    792 
    793     case coff_array_type:
    794       {
    795 	struct IT_dar dar;
    796 	int j;
    797 	int dims = 1;		/* Only output one dimension at a time.  */
    798 
    799 	dar.dims = dims;
    800 	dar.variable = nints (dims);
    801 	dar.subtype = nints (dims);
    802 	dar.spare = nints (dims);
    803 	dar.max_variable = nints (dims);
    804 	dar.maxspare = nints (dims);
    805 	dar.max = nints (dims);
    806 	dar.min_variable = nints (dims);
    807 	dar.min = nints (dims);
    808 	dar.minspare = nints (dims);
    809 	dar.neg = 0x1001;
    810 	dar.length = type->size / type->u.array.dim;
    811 
    812 	for (j = 0; j < dims; j++)
    813 	  {
    814 	    dar.variable[j] = VARIABLE_FIXED;
    815 	    dar.subtype[j] = SUB_INTEGER;
    816 	    dar.spare[j] = 0;
    817 	    dar.max_variable[j] = 0;
    818 	    dar.max[j] = type->u.array.dim;
    819 	    dar.min_variable[j] = 0;
    820 	    dar.min[j] = 1;	/* Why isn't this 0 ? */
    821 	  }
    822 	walk_tree_type_1 (sfile, symbol, type->u.array.array_of, nest + 1);
    823 	sysroff_swap_dar_out (file, &dar);
    824       }
    825       break;
    826 
    827     case coff_enumdef_type:
    828       {
    829 	struct IT_dbt dbt;
    830 	struct IT_den den;
    831 	struct coff_symbol *member;
    832 
    833 	dbt.btype = BTYPE_ENUM;
    834 	dbt.bitsize = type->size;
    835 	dbt.sign = SIGN_UNSPEC;
    836 	dbt.fptype = FPTYPE_NOTSPEC;
    837 	dbt.sid = get_member_id (type->u.aenumdef.idx);
    838 	dbt.neg = 0x1001;
    839 	sysroff_swap_dbt_out (file, &dbt);
    840 
    841 	den.end = 0;
    842 	den.neg = 0x1001;
    843 	den.spare = 0;
    844 	sysroff_swap_den_out (file, &den);
    845 
    846 	for (member = type->u.aenumdef.elements->vars_head;
    847 	     member;
    848 	     member = member->next)
    849 	  walk_tree_symbol (sfile, 0, member, nest + 1);
    850 
    851 	den.end = 1;
    852 	sysroff_swap_den_out (file, &den);
    853       }
    854       break;
    855 
    856     case coff_enumref_type:
    857       {
    858 	struct IT_dbt dbt;
    859 
    860 	dbt.btype = BTYPE_TAG;
    861 	dbt.bitsize = type->size;
    862 	dbt.sign = SIGN_UNSPEC;
    863 	dbt.fptype = FPTYPE_NOTSPEC;
    864 	dbt.sid = get_member_id (type->u.aenumref.ref->number);
    865 	dbt.neg = 0x1001;
    866 	sysroff_swap_dbt_out (file, &dbt);
    867       }
    868       break;
    869 
    870     default:
    871       fatal (_("Unrecognised type: %d"), type->type);
    872     }
    873 }
    874 
    875 /* Obsolete ?
    876    static void
    877    dty_start ()
    878    {
    879    struct IT_dty dty;
    880    dty.end = 0;
    881    dty.neg = 0x1001;
    882    dty.spare = 0;
    883    sysroff_swap_dty_out (file, &dty);
    884    }
    885 
    886    static void
    887    dty_stop ()
    888    {
    889    struct IT_dty dty;
    890    dty.end = 0;
    891    dty.neg = 0x1001;
    892    dty.end = 1;
    893    sysroff_swap_dty_out (file, &dty);
    894    }
    895 
    896 
    897    static void
    898    dump_tree_structure (sfile, symbol, type, nest)
    899    struct coff_sfile *sfile;
    900    struct coff_symbol *symbol;
    901    struct coff_type *type;
    902    int nest;
    903    {
    904    if (symbol->type->type == coff_function_type)
    905    {
    906 
    907 
    908    }
    909 
    910    }
    911  */
    912 
    913 static void
    914 walk_tree_type (struct coff_sfile *sfile, struct coff_symbol *symbol,
    915 		struct coff_type *type, int nest)
    916 {
    917   if (symbol->type->type == coff_function_type)
    918     {
    919       struct IT_dty dty;
    920 
    921       dty.end = 0;
    922       dty.neg = 0x1001;
    923 
    924       sysroff_swap_dty_out (file, &dty);
    925       walk_tree_type_1 (sfile, symbol, type, nest);
    926       dty.end = 1;
    927       sysroff_swap_dty_out (file, &dty);
    928 
    929       wr_dps_start (sfile,
    930 		    symbol->where->section,
    931 		    symbol->type->u.function.code,
    932 		    BLOCK_TYPE_FUNCTION, nest);
    933       wr_dps_start (sfile, symbol->where->section,
    934 		    symbol->type->u.function.code,
    935 		    BLOCK_TYPE_BLOCK, nest);
    936       walk_tree_scope (symbol->where->section,
    937 		       sfile,
    938 		       symbol->type->u.function.code,
    939 		       nest + 1, BLOCK_TYPE_BLOCK);
    940 
    941       wr_dps_end (symbol->where->section,
    942 		  symbol->type->u.function.code,
    943 		  BLOCK_TYPE_BLOCK);
    944       wr_dps_end (symbol->where->section,
    945 		  symbol->type->u.function.code, BLOCK_TYPE_FUNCTION);
    946     }
    947   else
    948     {
    949       struct IT_dty dty;
    950 
    951       dty.end = 0;
    952       dty.neg = 0x1001;
    953       sysroff_swap_dty_out (file, &dty);
    954       walk_tree_type_1 (sfile, symbol, type, nest);
    955       dty.end = 1;
    956       sysroff_swap_dty_out (file, &dty);
    957     }
    958 }
    959 
    960 static void
    961 walk_tree_symbol (struct coff_sfile *sfile, struct coff_section *section ATTRIBUTE_UNUSED, struct coff_symbol *symbol, int nest)
    962 {
    963   struct IT_dsy dsy;
    964 
    965   memset (&dsy, 0, sizeof(dsy));
    966   dsy.nesting = nest;
    967 
    968   switch (symbol->type->type)
    969     {
    970     case coff_function_type:
    971       dsy.type = STYPE_FUNC;
    972       dsy.assign = 1;
    973       break;
    974 
    975     case coff_structref_type:
    976     case coff_pointer_type:
    977     case coff_array_type:
    978     case coff_basic_type:
    979     case coff_enumref_type:
    980       dsy.type = STYPE_VAR;
    981       dsy.assign = 1;
    982       break;
    983 
    984     case coff_enumdef_type:
    985       dsy.type = STYPE_TAG;
    986       dsy.assign = 0;
    987       dsy.magic = 2;
    988       break;
    989 
    990     case coff_structdef_type:
    991       dsy.type = STYPE_TAG;
    992       dsy.assign = 0;
    993       dsy.magic = symbol->type->u.astructdef.isstruct ? 0 : 1;
    994       break;
    995 
    996     case coff_secdef_type:
    997       return;
    998 
    999     default:
   1000       fatal (_("Unrecognised coff symbol type: %d"), symbol->type->type);
   1001     }
   1002 
   1003   if (symbol->where->where == coff_where_member_of_struct)
   1004     {
   1005       dsy.assign = 0;
   1006       dsy.type = STYPE_MEMBER;
   1007     }
   1008 
   1009   if (symbol->where->where == coff_where_member_of_enum)
   1010     {
   1011       dsy.type = STYPE_ENUM;
   1012       dsy.assign = 0;
   1013       dsy.evallen = 4;
   1014       dsy.evalue = symbol->where->offset;
   1015     }
   1016 
   1017   if (symbol->type->type == coff_structdef_type
   1018       || symbol->where->where == coff_where_entag
   1019       || symbol->where->where == coff_where_strtag)
   1020     {
   1021       dsy.snumber = get_member_id (symbol->number);
   1022     }
   1023   else
   1024     {
   1025       dsy.snumber = get_ordinary_id (symbol->number);
   1026     }
   1027 
   1028   dsy.sname = symbol->name[0] == '_' ? symbol->name + 1 : symbol->name;
   1029 
   1030   switch (symbol->visible->type)
   1031     {
   1032     case coff_vis_common:
   1033     case coff_vis_ext_def:
   1034       dsy.ainfo = AINFO_STATIC_EXT_DEF;
   1035       break;
   1036 
   1037     case coff_vis_ext_ref:
   1038       dsy.ainfo = AINFO_STATIC_EXT_REF;
   1039       break;
   1040 
   1041     case coff_vis_int_def:
   1042       dsy.ainfo = AINFO_STATIC_INT;
   1043       break;
   1044 
   1045     case coff_vis_auto:
   1046     case coff_vis_autoparam:
   1047       dsy.ainfo = AINFO_AUTO;
   1048       break;
   1049 
   1050     case coff_vis_register:
   1051     case coff_vis_regparam:
   1052       dsy.ainfo = AINFO_REG;
   1053       break;
   1054       break;
   1055 
   1056     case coff_vis_tag:
   1057     case coff_vis_member_of_struct:
   1058     case coff_vis_member_of_enum:
   1059       break;
   1060 
   1061     default:
   1062       fatal (_("Unrecognised coff symbol visibility: %d"), symbol->visible->type);
   1063     }
   1064 
   1065   dsy.dlength = symbol->type->size;
   1066 
   1067   switch (symbol->where->where)
   1068     {
   1069     case coff_where_memory:
   1070 
   1071       dsy.section = symbol->where->section->number;
   1072 #ifdef FOOP
   1073       dsy.section = 0;
   1074 #endif
   1075       break;
   1076 
   1077     case coff_where_member_of_struct:
   1078     case coff_where_member_of_enum:
   1079     case coff_where_stack:
   1080     case coff_where_register:
   1081     case coff_where_unknown:
   1082     case coff_where_strtag:
   1083     case coff_where_entag:
   1084     case coff_where_typedef:
   1085       break;
   1086 
   1087     default:
   1088       fatal (_("Unrecognised coff symbol location: %d"), symbol->where->where);
   1089     }
   1090 
   1091   switch (symbol->where->where)
   1092     {
   1093     case coff_where_memory:
   1094       dsy.address = symbol->where->offset - find_base (sfile, symbol->where->section);
   1095       break;
   1096 
   1097     case coff_where_stack:
   1098       dsy.address = symbol->where->offset;
   1099       break;
   1100 
   1101     case coff_where_member_of_struct:
   1102       if (symbol->where->bitsize)
   1103 	{
   1104 	  int bits = (symbol->where->offset * 8 + symbol->where->bitoffset);
   1105 	  dsy.bitunit = 1;
   1106 	  dsy.field_len = symbol->where->bitsize;
   1107 	  dsy.field_off = (bits / 32) * 4;
   1108 	  dsy.field_bitoff = bits % 32;
   1109 	}
   1110       else
   1111 	{
   1112 	  dsy.bitunit = 0;
   1113 
   1114 	  dsy.field_len = symbol->type->size;
   1115 	  dsy.field_off = symbol->where->offset;
   1116 	}
   1117       break;
   1118 
   1119     case coff_where_member_of_enum:
   1120       /*      dsy.bitunit = 0;
   1121          dsy.field_len  = symbol->type->size;
   1122          dsy.field_off = symbol->where->offset; */
   1123       break;
   1124 
   1125     case coff_where_register:
   1126     case coff_where_unknown:
   1127     case coff_where_strtag:
   1128     case coff_where_entag:
   1129     case coff_where_typedef:
   1130       break;
   1131 
   1132     default:
   1133       fatal (_("Unrecognised coff symbol location: %d"), symbol->where->where);
   1134     }
   1135 
   1136   if (symbol->where->where == coff_where_register)
   1137     dsy.reg = rnames[symbol->where->offset];
   1138 
   1139   switch (symbol->visible->type)
   1140     {
   1141     case coff_vis_common:
   1142       /* We do this 'cause common C symbols are treated as extdefs.  */
   1143     case coff_vis_ext_def:
   1144     case coff_vis_ext_ref:
   1145       dsy.ename = symbol->name;
   1146       break;
   1147 
   1148     case coff_vis_regparam:
   1149     case coff_vis_autoparam:
   1150       dsy.type = STYPE_PARAMETER;
   1151       break;
   1152 
   1153     case coff_vis_int_def:
   1154     case coff_vis_auto:
   1155     case coff_vis_register:
   1156     case coff_vis_tag:
   1157     case coff_vis_member_of_struct:
   1158     case coff_vis_member_of_enum:
   1159       break;
   1160 
   1161     default:
   1162       fatal (_("Unrecognised coff symbol visibility: %d"), symbol->visible->type);
   1163     }
   1164 
   1165   dsy.sfn = 0;
   1166   dsy.sln = 2;
   1167   dsy.neg = 0x1001;
   1168 
   1169   sysroff_swap_dsy_out (file, &dsy);
   1170 
   1171   walk_tree_type (sfile, symbol, symbol->type, nest);
   1172 }
   1173 
   1174 static void
   1175 walk_tree_scope (struct coff_section *section, struct coff_sfile *sfile, struct coff_scope *scope, int nest, int type)
   1176 {
   1177   struct coff_symbol *vars;
   1178   struct coff_scope *child;
   1179 
   1180   if (scope->vars_head
   1181       || (scope->list_head && scope->list_head->vars_head))
   1182     {
   1183       wr_dps_start (sfile, section, scope, type, nest);
   1184 
   1185       if (nest == 0)
   1186 	wr_globals (tree, sfile, nest + 1);
   1187 
   1188       for (vars = scope->vars_head; vars; vars = vars->next)
   1189 	walk_tree_symbol (sfile, section, vars, nest);
   1190 
   1191       for (child = scope->list_head; child; child = child->next)
   1192 	walk_tree_scope (section, sfile, child, nest + 1, BLOCK_TYPE_BLOCK);
   1193 
   1194       wr_dps_end (section, scope, type);
   1195     }
   1196 }
   1197 
   1198 static void
   1199 walk_tree_sfile (struct coff_section *section, struct coff_sfile *sfile)
   1200 {
   1201   walk_tree_scope (section, sfile, sfile->scope, 0, BLOCK_TYPE_COMPUNIT);
   1202 }
   1203 
   1204 static void
   1205 wr_program_structure (struct coff_ofile *p, struct coff_sfile *sfile)
   1206 {
   1207   if (p->nsections < 4)
   1208     return;
   1209   walk_tree_sfile (p->sections + 4, sfile);
   1210 }
   1211 
   1212 static void
   1213 wr_du (struct coff_ofile *p, struct coff_sfile *sfile, int n)
   1214 {
   1215   struct IT_du du;
   1216   int lim;
   1217   int i;
   1218   int j;
   1219   unsigned int *lowest = (unsigned *) nints (p->nsections);
   1220   unsigned int *highest = (unsigned *) nints (p->nsections);
   1221 
   1222   du.format = bfd_get_file_flags (abfd) & EXEC_P ? 0 : 1;
   1223   du.optimized = 0;
   1224   du.stackfrmt = 0;
   1225   du.spare = 0;
   1226   du.unit = n;
   1227   du.sections = p->nsections - 1;
   1228   du.san = (int *) xcalloc (sizeof (int), du.sections);
   1229   du.address = nints (du.sections);
   1230   du.length = nints (du.sections);
   1231 
   1232   for (i = 0; i < du.sections; i++)
   1233     {
   1234       lowest[i] = ~0;
   1235       highest[i] = 0;
   1236     }
   1237 
   1238   lim = du.sections;
   1239   for (j = 0; j < lim; j++)
   1240     {
   1241       int src = j;
   1242       int dst = j;
   1243 
   1244       du.san[dst] = dst;
   1245 
   1246       if (sfile->section[src].init)
   1247 	{
   1248 	  du.length[dst]
   1249 	    = sfile->section[src].high - sfile->section[src].low + 1;
   1250 	  du.address[dst]
   1251 	    = sfile->section[src].low;
   1252 	}
   1253       else
   1254 	{
   1255 	  du.length[dst] = 0;
   1256 	  du.address[dst] = 0;
   1257 	}
   1258 
   1259       if (debug)
   1260 	{
   1261 	  if (sfile->section[src].parent)
   1262 	    {
   1263 	      printf (" section %6s 0x%08x..0x%08x\n",
   1264 		      sfile->section[src].parent->name,
   1265 		      du.address[dst],
   1266 		      du.address[dst] + du.length[dst] - 1);
   1267 	    }
   1268 	}
   1269 
   1270       du.sections = dst + 1;
   1271     }
   1272 
   1273   du.tool = "c_gcc";
   1274   du.date = DATE;
   1275 
   1276   sysroff_swap_du_out (file, &du);
   1277 }
   1278 
   1279 static void
   1280 wr_dus (struct coff_ofile *p ATTRIBUTE_UNUSED, struct coff_sfile *sfile)
   1281 {
   1282   struct IT_dus dus;
   1283 
   1284   dus.efn = 0x1001;
   1285   dus.ns = 1;			/* p->nsources; sac 14 jul 94 */
   1286   dus.drb = nints (dus.ns);
   1287   dus.fname = (char **) xcalloc (sizeof (char *), dus.ns);
   1288   dus.spare = nints (dus.ns);
   1289   dus.ndir = 0;
   1290   /* Find the filenames.  */
   1291   dus.drb[0] = 0;
   1292   dus.fname[0] = sfile->name;
   1293 
   1294   sysroff_swap_dus_out (file, &dus);
   1295 
   1296 }
   1297 
   1298 /* Find the offset of the .text section for this sfile in the
   1299    .text section for the output file.  */
   1300 
   1301 static int
   1302 find_base (struct coff_sfile *sfile, struct coff_section *section)
   1303 {
   1304   return sfile->section[section->number].low;
   1305 }
   1306 
   1307 static void
   1308 wr_dln (struct coff_ofile *p ATTRIBUTE_UNUSED, struct coff_sfile *sfile,
   1309 	int n ATTRIBUTE_UNUSED)
   1310 {
   1311   /* Count up all the linenumbers */
   1312 
   1313   struct coff_symbol *sy;
   1314   int lc = 0;
   1315   struct IT_dln dln;
   1316 
   1317   int idx;
   1318 
   1319   for (sy = sfile->scope->vars_head;
   1320        sy;
   1321        sy = sy->next)
   1322     {
   1323       struct coff_type *t = sy->type;
   1324       if (t->type == coff_function_type)
   1325 	{
   1326 	  struct coff_line *l = t->u.function.lines;
   1327 	  if (l)
   1328 	    lc += l->nlines;
   1329 	}
   1330     }
   1331 
   1332   dln.sfn = nints (lc);
   1333   dln.sln = nints (lc);
   1334   dln.cc = nints (lc);
   1335   dln.section = nints (lc);
   1336 
   1337   dln.from_address = nints (lc);
   1338   dln.to_address = nints (lc);
   1339 
   1340 
   1341   dln.neg = 0x1001;
   1342 
   1343   dln.nln = lc;
   1344 
   1345   /* Run through once more and fill up the structure */
   1346   idx = 0;
   1347   for (sy = sfile->scope->vars_head;
   1348        sy;
   1349        sy = sy->next)
   1350     {
   1351       if (sy->type->type == coff_function_type)
   1352 	{
   1353 	  int i;
   1354 	  struct coff_line *l = sy->type->u.function.lines;
   1355 	  if (l)
   1356 	    {
   1357 	      int base = find_base (sfile, sy->where->section);
   1358 	      for (i = 0; i < l->nlines; i++)
   1359 		{
   1360 		  dln.section[idx] = sy->where->section->number;
   1361 		  dln.sfn[idx] = 0;
   1362 		  dln.sln[idx] = l->lines[i];
   1363 		  dln.from_address[idx] =
   1364 		    l->addresses[i] + sy->where->section->address - base;
   1365 		  dln.cc[idx] = 0;
   1366 		  if (idx)
   1367 		    dln.to_address[idx - 1] = dln.from_address[idx];
   1368 		  idx++;
   1369 
   1370 		}
   1371 	      dln.to_address[idx - 1] = dln.from_address[idx - 1] + 2;
   1372 	    }
   1373 	}
   1374     }
   1375   if (lc)
   1376     sysroff_swap_dln_out (file, &dln);
   1377 }
   1378 
   1379 /* Write the global symbols out to the debug info.  */
   1380 
   1381 static void
   1382 wr_globals (struct coff_ofile *p, struct coff_sfile *sfile,
   1383 	    int n ATTRIBUTE_UNUSED)
   1384 {
   1385   struct coff_symbol *sy;
   1386 
   1387   for (sy = p->symbol_list_head;
   1388        sy;
   1389        sy = sy->next_in_ofile_list)
   1390     {
   1391       if (sy->visible->type == coff_vis_ext_def
   1392 	  || sy->visible->type == coff_vis_ext_ref)
   1393 	{
   1394 	  /* Only write out symbols if they belong to
   1395 	     the current source file.  */
   1396 	  if (sy->sfile == sfile)
   1397 	    walk_tree_symbol (sfile, 0, sy, 0);
   1398 	}
   1399     }
   1400 }
   1401 
   1402 static void
   1403 wr_debug (struct coff_ofile *p)
   1404 {
   1405   struct coff_sfile *sfile;
   1406   int n = 0;
   1407 
   1408   for (sfile = p->source_head;
   1409        sfile;
   1410        sfile = sfile->next)
   1411     {
   1412       if (debug)
   1413 	printf ("%s\n", sfile->name);
   1414 
   1415       wr_du (p, sfile, n);
   1416       wr_dus (p, sfile);
   1417       wr_program_structure (p, sfile);
   1418       wr_dln (p, sfile, n);
   1419       n++;
   1420     }
   1421 }
   1422 
   1423 static void
   1424 wr_cs (void)
   1425 {
   1426   /* It seems that the CS struct is not normal - the size is wrong
   1427      heres one I prepared earlier.  */
   1428   static char b[] =
   1429     {
   1430     0x80,			/* IT */
   1431     0x21,			/* RL */
   1432     0x00,			/* number of chars in variable length part */
   1433     0x80,			/* hd */
   1434     0x00,			/* hs */
   1435     0x80,			/* un */
   1436     0x00,			/* us */
   1437     0x80,			/* sc */
   1438     0x00,			/* ss */
   1439     0x80,			/* er */
   1440     0x80,			/* ed */
   1441     0x80,			/* sh */
   1442     0x80,			/* ob */
   1443     0x80,			/* rl */
   1444     0x80,			/* du */
   1445     0x80,			/* dps */
   1446     0x80,			/* dsy */
   1447     0x80,			/* dty */
   1448     0x80,			/* dln */
   1449     0x80,			/* dso */
   1450     0x80,			/* dus */
   1451     0x00,			/* dss */
   1452     0x80,			/* dbt */
   1453     0x00,			/* dpp */
   1454     0x80,			/* dfp */
   1455     0x80,			/* den */
   1456     0x80,			/* dds */
   1457     0x80,			/* dar */
   1458     0x80,			/* dpt */
   1459     0x00,			/* dul */
   1460     0x00,			/* dse */
   1461     0x00,			/* dot */
   1462     0xDE			/* CS */
   1463   };
   1464 
   1465   if (fwrite (b, sizeof (b), 1, file) != 1)
   1466     /* FIXME: Return error status.  */
   1467     fatal (_("Failed to write CS struct"));
   1468 }
   1469 
   1470 /* Write out the SC records for a unit.  Create an SC
   1471    for all the sections which appear in the output file, even
   1472    if there isn't an equivalent one on the input.  */
   1473 
   1474 static int
   1475 wr_sc (struct coff_ofile *ptr, struct coff_sfile *sfile)
   1476 {
   1477   int i;
   1478   int scount = 0;
   1479   /* First work out the total number of sections.  */
   1480   int total_sec = ptr->nsections;
   1481   struct myinfo
   1482     {
   1483       struct coff_section *sec;
   1484       struct coff_symbol *symbol;
   1485     };
   1486   struct coff_symbol *symbol;
   1487   struct myinfo *info
   1488     = (struct myinfo *) calloc (total_sec, sizeof (struct myinfo));
   1489 
   1490 
   1491   for (i = 0; i < total_sec; i++)
   1492     {
   1493       info[i].sec = ptr->sections + i;
   1494       info[i].symbol = 0;
   1495     }
   1496 
   1497   for (symbol = sfile->scope->vars_head;
   1498        symbol;
   1499        symbol = symbol->next)
   1500     {
   1501 
   1502       if (symbol->type->type == coff_secdef_type)
   1503 	{
   1504 	  for (i = 0; i < total_sec; i++)
   1505 	    {
   1506 	      if (symbol->where->section == info[i].sec)
   1507 		{
   1508 		  info[i].symbol = symbol;
   1509 		  break;
   1510 		}
   1511 	    }
   1512 	}
   1513     }
   1514 
   1515   /* Now output all the section info, and fake up some stuff for sections
   1516      we don't have.  */
   1517   for (i = 1; i < total_sec; i++)
   1518     {
   1519       struct IT_sc sc;
   1520       char *name;
   1521 
   1522       symbol = info[i].symbol;
   1523       sc.spare = 0;
   1524       sc.spare1 = 0;
   1525 
   1526       if (!symbol)
   1527 	{
   1528 	  /* Don't have a symbol set aside for this section, which means
   1529 	     that nothing in this file does anything for the section.  */
   1530 	  sc.format = !(bfd_get_file_flags (abfd) & EXEC_P);
   1531 	  sc.addr = 0;
   1532 	  sc.length = 0;
   1533 	  name = info[i].sec->name;
   1534 	}
   1535       else
   1536 	{
   1537 	  if (bfd_get_file_flags (abfd) & EXEC_P)
   1538 	    {
   1539 	      sc.format = 0;
   1540 	      sc.addr = symbol->where->offset;
   1541 	    }
   1542 	  else
   1543 	    {
   1544 	      sc.format = 1;
   1545 	      sc.addr = 0;
   1546 	    }
   1547 	  sc.length = symbol->type->size;
   1548 	  name = symbol->name;
   1549 	}
   1550 
   1551       sc.align = 4;
   1552       sc.concat = CONCAT_SIMPLE;
   1553       sc.read = 3;
   1554       sc.write = 3;
   1555       sc.exec = 3;
   1556       sc.init = 3;
   1557       sc.mode = 3;
   1558       sc.spare = 0;
   1559       sc.segadd = 0;
   1560       sc.spare1 = 0;		/* If not zero, then it doesn't work.  */
   1561       sc.name = section_translate (name);
   1562 
   1563       if (strlen (sc.name) == 1)
   1564 	{
   1565 	  switch (sc.name[0])
   1566 	    {
   1567 	    case 'D':
   1568 	    case 'B':
   1569 	      sc.contents = CONTENTS_DATA;
   1570 	      break;
   1571 
   1572 	    default:
   1573 	      sc.contents = CONTENTS_CODE;
   1574 	    }
   1575 	}
   1576       else
   1577 	{
   1578 	  sc.contents = CONTENTS_CODE;
   1579 	}
   1580 
   1581       sysroff_swap_sc_out (file, &sc);
   1582       scount++;
   1583     }
   1584   free (info);
   1585   return scount;
   1586 }
   1587 
   1588 /* Write out the ER records for a unit.  */
   1589 
   1590 static void
   1591 wr_er (struct coff_ofile *ptr, struct coff_sfile *sfile ATTRIBUTE_UNUSED,
   1592        int first)
   1593 {
   1594   int idx = 0;
   1595   struct coff_symbol *sym;
   1596 
   1597   if (first)
   1598     {
   1599       for (sym = ptr->symbol_list_head; sym; sym = sym->next_in_ofile_list)
   1600 	{
   1601 	  if (sym->visible->type == coff_vis_ext_ref)
   1602 	    {
   1603 	      struct IT_er er;
   1604 
   1605 	      er.spare = 0;
   1606 	      er.type = ER_NOTSPEC;
   1607 	      er.name = sym->name;
   1608 	      sysroff_swap_er_out (file, &er);
   1609 	      sym->er_number = idx++;
   1610 	    }
   1611 	}
   1612     }
   1613 }
   1614 
   1615 /* Write out the ED records for a unit.  */
   1616 
   1617 static void
   1618 wr_ed (struct coff_ofile *ptr, struct coff_sfile *sfile ATTRIBUTE_UNUSED,
   1619        int first)
   1620 {
   1621   struct coff_symbol *s;
   1622 
   1623   if (first)
   1624     {
   1625       for (s = ptr->symbol_list_head; s; s = s->next_in_ofile_list)
   1626 	{
   1627 	  if (s->visible->type == coff_vis_ext_def
   1628 	      || s->visible->type == coff_vis_common)
   1629 	    {
   1630 	      struct IT_ed ed;
   1631 
   1632 	      ed.section = s->where->section->number;
   1633 	      ed.spare = 0;
   1634 
   1635 	      if (s->where->section->data)
   1636 		{
   1637 		  ed.type = ED_TYPE_DATA;
   1638 		}
   1639 	      else if (s->where->section->code & SEC_CODE)
   1640 		{
   1641 		  ed.type = ED_TYPE_ENTRY;
   1642 		}
   1643 	      else
   1644 		{
   1645 		  ed.type = ED_TYPE_NOTSPEC;
   1646 		  ed.type = ED_TYPE_DATA;
   1647 		}
   1648 
   1649 	      ed.address = s->where->offset - s->where->section->address;
   1650 	      ed.name = s->name;
   1651 	      sysroff_swap_ed_out (file, &ed);
   1652 	    }
   1653 	}
   1654     }
   1655 }
   1656 
   1657 static void
   1658 wr_unit_info (struct coff_ofile *ptr)
   1659 {
   1660   struct coff_sfile *sfile;
   1661   int first = 1;
   1662 
   1663   for (sfile = ptr->source_head;
   1664        sfile;
   1665        sfile = sfile->next)
   1666     {
   1667       long p1;
   1668       long p2;
   1669       int nsecs;
   1670 
   1671       p1 = ftell (file);
   1672       wr_un (ptr, sfile, first, 0);
   1673       nsecs = wr_sc (ptr, sfile);
   1674       p2 = ftell (file);
   1675       fseek (file, p1, SEEK_SET);
   1676       wr_un (ptr, sfile, first, nsecs);
   1677       fseek (file, p2, SEEK_SET);
   1678       wr_er (ptr, sfile, first);
   1679       wr_ed (ptr, sfile, first);
   1680       first = 0;
   1681     }
   1682 }
   1683 
   1684 static void
   1685 wr_module (struct coff_ofile *p)
   1686 {
   1687   wr_cs ();
   1688   wr_hd (p);
   1689   wr_unit_info (p);
   1690   wr_object_body (p);
   1691   wr_debug (p);
   1692   wr_tr ();
   1693 }
   1694 
   1695 static int
   1696 align (int x)
   1697 {
   1698   return (x + 3) & ~3;
   1699 }
   1700 
   1701 /* Find all the common variables and turn them into
   1702    ordinary defs - dunno why, but thats what hitachi does with 'em.  */
   1703 
   1704 static void
   1705 prescan (struct coff_ofile *otree)
   1706 {
   1707   struct coff_symbol *s;
   1708   struct coff_section *common_section;
   1709 
   1710   if (otree->nsections < 3)
   1711     return;
   1712 
   1713   /* Find the common section - always section 3.  */
   1714   common_section = otree->sections + 3;
   1715 
   1716   for (s = otree->symbol_list_head;
   1717        s;
   1718        s = s->next_in_ofile_list)
   1719     {
   1720       if (s->visible->type == coff_vis_common)
   1721 	{
   1722 	  struct coff_where *w = s->where;
   1723 	  /*      s->visible->type = coff_vis_ext_def; leave it as common */
   1724 	  common_section->size = align (common_section->size);
   1725 	  w->offset = common_section->size + common_section->address;
   1726 	  w->section = common_section;
   1727 	  common_section->size += s->type->size;
   1728 	  common_section->size = align (common_section->size);
   1729 	}
   1730     }
   1731 }
   1732 
   1733 char *program_name;
   1734 
   1735 static void
   1736 show_usage (FILE *ffile, int status)
   1737 {
   1738   fprintf (ffile, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name);
   1739   fprintf (ffile, _("Convert a COFF object file into a SYSROFF object file\n"));
   1740   fprintf (ffile, _(" The options are:\n\
   1741   -q --quick       (Obsolete - ignored)\n\
   1742   -n --noprescan   Do not perform a scan to convert commons into defs\n\
   1743   -d --debug       Display information about what is being done\n\
   1744   @<file>          Read options from <file>\n\
   1745   -h --help        Display this information\n\
   1746   -v --version     Print the program's version number\n"));
   1747 
   1748   if (REPORT_BUGS_TO[0] && status == 0)
   1749     fprintf (ffile, _("Report bugs to %s\n"), REPORT_BUGS_TO);
   1750   exit (status);
   1751 }
   1752 
   1753 int
   1754 main (int ac, char **av)
   1755 {
   1756   int opt;
   1757   static struct option long_options[] =
   1758   {
   1759     {"debug", no_argument, 0, 'd'},
   1760     {"quick", no_argument, 0, 'q'},
   1761     {"noprescan", no_argument, 0, 'n'},
   1762     {"help", no_argument, 0, 'h'},
   1763     {"version", no_argument, 0, 'V'},
   1764     {NULL, no_argument, 0, 0}
   1765   };
   1766   char **matching;
   1767   char *input_file;
   1768   char *output_file;
   1769 
   1770 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
   1771   setlocale (LC_MESSAGES, "");
   1772 #endif
   1773 #if defined (HAVE_SETLOCALE)
   1774   setlocale (LC_CTYPE, "");
   1775 #endif
   1776   bindtextdomain (PACKAGE, LOCALEDIR);
   1777   textdomain (PACKAGE);
   1778 
   1779   program_name = av[0];
   1780   xmalloc_set_program_name (program_name);
   1781   bfd_set_error_program_name (program_name);
   1782 
   1783   expandargv (&ac, &av);
   1784 
   1785   while ((opt = getopt_long (ac, av, "dHhVvqn", long_options,
   1786 			     (int *) NULL))
   1787 	 != EOF)
   1788     {
   1789       switch (opt)
   1790 	{
   1791 	case 'q':
   1792 	  quick = 1;
   1793 	  break;
   1794 	case 'n':
   1795 	  noprescan = 1;
   1796 	  break;
   1797 	case 'd':
   1798 	  debug = 1;
   1799 	  break;
   1800 	case 'H':
   1801 	case 'h':
   1802 	  show_usage (stdout, 0);
   1803 	  /*NOTREACHED */
   1804 	case 'v':
   1805 	case 'V':
   1806 	  print_version ("srconv");
   1807 	  exit (0);
   1808 	  /*NOTREACHED */
   1809 	case 0:
   1810 	  break;
   1811 	default:
   1812 	  show_usage (stderr, 1);
   1813 	  /*NOTREACHED */
   1814 	}
   1815     }
   1816 
   1817   /* The input and output files may be named on the command line.  */
   1818   output_file = NULL;
   1819   if (optind < ac)
   1820     {
   1821       input_file = av[optind];
   1822       ++optind;
   1823       if (optind < ac)
   1824 	{
   1825 	  output_file = av[optind];
   1826 	  ++optind;
   1827 	  if (optind < ac)
   1828 	    show_usage (stderr, 1);
   1829 	  if (filename_cmp (input_file, output_file) == 0)
   1830 	    {
   1831 	      fatal (_("input and output files must be different"));
   1832 	    }
   1833 	}
   1834     }
   1835   else
   1836     input_file = 0;
   1837 
   1838   if (!input_file)
   1839     {
   1840       fatal (_("no input file specified"));
   1841     }
   1842 
   1843   if (!output_file)
   1844     {
   1845       /* Take a .o off the input file and stick on a .obj.  If
   1846          it doesn't end in .o, then stick a .obj on anyway */
   1847 
   1848       int len = strlen (input_file);
   1849 
   1850       output_file = xmalloc (len + 5);
   1851       strcpy (output_file, input_file);
   1852 
   1853       if (len > 3
   1854 	  && output_file[len - 2] == '.'
   1855 	  && output_file[len - 1] == 'o')
   1856 	{
   1857 	  output_file[len] = 'b';
   1858 	  output_file[len + 1] = 'j';
   1859 	  output_file[len + 2] = 0;
   1860 	}
   1861       else
   1862 	{
   1863 	  strcat (output_file, ".obj");
   1864 	}
   1865     }
   1866 
   1867   abfd = bfd_openr (input_file, 0);
   1868 
   1869   if (!abfd)
   1870     bfd_fatal (input_file);
   1871 
   1872   if (!bfd_check_format_matches (abfd, bfd_object, &matching))
   1873     {
   1874       bfd_nonfatal (input_file);
   1875 
   1876       if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
   1877 	{
   1878 	  list_matching_formats (matching);
   1879 	  free (matching);
   1880 	}
   1881       exit (1);
   1882     }
   1883 
   1884   file = fopen (output_file, FOPEN_WB);
   1885 
   1886   if (!file)
   1887     fatal (_("unable to open output file %s"), output_file);
   1888 
   1889   if (debug)
   1890     printf ("ids %d %d\n", base1, base2);
   1891 
   1892   tree = coff_grok (abfd);
   1893   if (tree)
   1894     {
   1895       if (!noprescan)
   1896 	prescan (tree);
   1897 
   1898       wr_module (tree);
   1899     }
   1900   return 0;
   1901 }
   1902