* sunos.c (sunos_create_dynamic_sections): We need the dynamic
[deliverable/binutils-gdb.git] / bfd / coffcode.h
index 76d8fd4c0eacb8df53f2f336e829da28a7ac74da..ae07e91d9c0a5d22ede8f6abc86c5a4752840904 100644 (file)
@@ -1,5 +1,5 @@
 /* Support for the generic parts of most COFF variants, for BFD.
-   Copyright 1990, 91, 92, 93, 94, 1995 Free Software Foundation, Inc.
+   Copyright 1990, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
    Written by Cygnus Support.
 
 This file is part of BFD, the Binary File Descriptor library.
@@ -265,9 +265,14 @@ CODE_FRAGMENT
 .unsigned int fix_end : 1;
 .
 .       {* Should the x_csect.x_scnlen field be renumbered.
-.          Created by coff_slurp_symbol_table. *}
+.          Created by coff_pointerize_aux. *}
 .unsigned int fix_scnlen : 1;
 .
+.       {* Fix up an XCOFF C_BINCL/C_EINCL symbol.  The value is the
+.          index into the line number entries.  Set by
+.          coff_slurp_symbol_table.  *}
+.unsigned int fix_line : 1;
+.
 .       {* The container for the symbol structure as read and translated
 .           from the file. *}
 .
@@ -298,23 +303,13 @@ CODE_FRAGMENT
 
 */
 
-#ifndef IMAGE_BASE
-#define IMAGE_BASE 0
+#ifdef COFF_WITH_PE
+#include "peicode.h"
+#else
+#include "coffswap.h"
 #endif
 
-
-static bfd_vma
-pe_value(ptr, def)
-     bfd_link_pe_info_dval *ptr;
-     bfd_vma def;
-{
-  if (ptr && ptr->defined)
-    return ptr->value;
-  return def;
-}
-
-
-#include "coffswap.h"
+#define STRING_SIZE_SIZE (4)
 \f
 /* void warning(); */
 
@@ -338,12 +333,6 @@ sec_to_styp_flags (sec_name, sec_flags)
   else if (!strcmp (sec_name, _DATA))
     {
       styp_flags = STYP_DATA;
-#ifdef TWO_DATA_SECS
-    }
-  else if (!strcmp (sec_name, ".data2"))
-    {
-      styp_flags = STYP_DATA;
-#endif /* TWO_DATA_SECS */
     }
   else if (!strcmp (sec_name, _BSS))
     {
@@ -384,6 +373,16 @@ sec_to_styp_flags (sec_name, sec_flags)
     {
       styp_flags = STYP_DATA;
     }
+#endif
+#ifdef RS6000COFF_C
+  else if (!strcmp (sec_name, _PAD))
+    {
+      styp_flags = STYP_PAD;
+    }
+  else if (!strcmp (sec_name, _LOADER))
+    {
+      styp_flags = STYP_LOADER;
+    }
 #endif
   /* Try and figure out what it should be */
   else if (sec_flags & SEC_CODE)
@@ -416,6 +415,11 @@ sec_to_styp_flags (sec_name, sec_flags)
     styp_flags |= STYP_NOLOAD;
 #endif
 
+#ifdef COFF_WITH_PE
+  if (sec_flags & SEC_LINK_ONCE)
+    styp_flags |= IMAGE_SCN_LNK_COMDAT;
+#endif
+
   return (styp_flags);
 }
 /*
@@ -479,6 +483,10 @@ styp_to_sec_flags (abfd, hdr, name)
       sec_flags |= SEC_DEBUGGING;
 #endif
     }
+  else if (styp_flags & STYP_PAD)
+    {
+      sec_flags = 0;
+    }
   else if (strcmp (name, _TEXT) == 0)
     {
       if (sec_flags & SEC_NEVER_LOAD)
@@ -486,11 +494,7 @@ styp_to_sec_flags (abfd, hdr, name)
       else
        sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
     }
-  else if (strcmp (name, _DATA) == 0
-#ifdef TWO_DATA_SECS
-          || strcmp (name, ".data2") == 0
-#endif
-          )
+  else if (strcmp (name, _DATA) == 0)
     {
       if (sec_flags & SEC_NEVER_LOAD)
        sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
@@ -544,6 +548,97 @@ styp_to_sec_flags (abfd, hdr, name)
     }
 #endif /* STYP_SDATA */
 
+#ifdef COFF_WITH_PE
+  if (styp_flags & IMAGE_SCN_LNK_REMOVE)
+    sec_flags |= SEC_EXCLUDE;
+
+  if (styp_flags & IMAGE_SCN_LNK_COMDAT)
+    {
+      sec_flags |= SEC_LINK_ONCE;
+
+      /* Unfortunately, the PE format stores essential information in
+         the symbol table, of all places.  We need to extract that
+         information now, so that objdump and the linker will know how
+         to handle the section without worrying about the symbols.  We
+         can't call slurp_symtab, because the linker doesn't want the
+         swapped symbols.  */
+
+      if (_bfd_coff_get_external_symbols (abfd))
+       {
+         bfd_byte *esym, *esymend;
+
+         esym = (bfd_byte *) obj_coff_external_syms (abfd);
+         esymend = esym + obj_raw_syment_count (abfd) * SYMESZ;
+
+         while (esym < esymend)
+           {
+             struct internal_syment isym;
+
+             bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &isym);
+
+             if (sizeof (internal_s->s_name) > SYMNMLEN)
+               {
+                 /* This case implies that the matching symbol name
+                     will be in the string table.  */
+                 abort ();
+               }
+
+             if (isym.n_sclass == C_STAT
+                 && isym.n_type == T_NULL
+                 && isym.n_numaux == 1)
+               {
+                 char buf[SYMNMLEN + 1];
+                 const char *symname;
+
+                 symname = _bfd_coff_internal_syment_name (abfd, &isym, buf);
+                 if (symname == NULL)
+                   abort ();
+
+                 if (strcmp (name, symname) == 0)
+                   {
+                     union internal_auxent aux;
+
+                     /* This is the section symbol.  */
+
+                     bfd_coff_swap_aux_in (abfd, (PTR) (esym + SYMESZ),
+                                           isym.n_type, isym.n_sclass,
+                                           0, isym.n_numaux, (PTR) &aux);
+
+                     switch (aux.x_scn.x_comdat)
+                       {
+                       case IMAGE_COMDAT_SELECT_NODUPLICATES:
+                         sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY;
+                         break;
+
+                       default:
+                       case IMAGE_COMDAT_SELECT_ANY:
+                         sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
+                         break;
+
+                       case IMAGE_COMDAT_SELECT_SAME_SIZE:
+                         sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE;
+                         break;
+
+                       case IMAGE_COMDAT_SELECT_EXACT_MATCH:
+                         sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS;
+                         break;
+
+                       case IMAGE_COMDAT_SELECT_ASSOCIATIVE:
+                         /* FIXME: This is not currently implemented.  */
+                         sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
+                         break;
+                       }
+
+                     break;
+                   }
+               }
+
+             esym += (isym.n_numaux + 1) * SYMESZ;
+           }
+       }
+    }
+#endif
+
   return (sec_flags);
 }
 
@@ -631,6 +726,7 @@ dependent COFF routines:
 . unsigned int _bfd_relsz;
 . unsigned int _bfd_linesz;
 . boolean _bfd_coff_long_filenames;
+. boolean _bfd_coff_long_section_names;
 . void (*_bfd_coff_swap_filehdr_in) PARAMS ((
 .       bfd     *abfd,
 .       PTR     ext,
@@ -661,9 +757,6 @@ dependent COFF routines:
 .       bfd     *abfd,
 .       PTR     internal_scnhdr,
 .       const char *name));
-. asection *(*_bfd_make_section_hook) PARAMS ((
-.       bfd     *abfd,
-.       char    *name));
 . void (*_bfd_set_alignment_hook) PARAMS ((
 .       bfd     *abfd,
 .       asection *sec,
@@ -673,6 +766,19 @@ dependent COFF routines:
 . boolean (*_bfd_coff_symname_in_debug) PARAMS ((
 .       bfd     *abfd,
 .       struct internal_syment *sym));
+. boolean (*_bfd_coff_pointerize_aux_hook) PARAMS ((
+.       bfd *abfd,
+.       combined_entry_type *table_base,
+.       combined_entry_type *symbol,
+.       unsigned int indaux,
+.       combined_entry_type *aux));
+. boolean (*_bfd_coff_print_aux) PARAMS ((
+.       bfd *abfd,
+.       FILE *file,
+.       combined_entry_type *table_base,
+.       combined_entry_type *symbol,
+.       combined_entry_type *aux,
+.       unsigned int indaux));
 . void (*_bfd_coff_reloc16_extra_cases) PARAMS ((
 .       bfd     *abfd,
 .       struct bfd_link_info *link_info,
@@ -692,6 +798,9 @@ dependent COFF routines:
 .       struct internal_syment *));
 . void (*_bfd_coff_compute_section_file_positions) PARAMS ((
 .       bfd *abfd));
+. boolean (*_bfd_coff_start_final_link) PARAMS ((
+.       bfd *output_bfd,
+.       struct bfd_link_info *info));
 . boolean (*_bfd_coff_relocate_section) PARAMS ((
 .       bfd *output_bfd,
 .       struct bfd_link_info *info,
@@ -715,6 +824,17 @@ dependent COFF routines:
 .       asection *sec,
 .       struct internal_reloc *reloc,
 .       boolean *adjustedp));
+. boolean (*_bfd_coff_link_add_one_symbol) PARAMS ((
+.       struct bfd_link_info *info,
+.       bfd *abfd,
+.       const char *name,
+.       flagword flags, 
+.       asection *section,
+.       bfd_vma value,
+.       const char *string,
+.       boolean copy,
+.       boolean collect, 
+.       struct bfd_link_hash_entry **hashp));
 .
 .} bfd_coff_backend_data;
 .
@@ -758,6 +878,8 @@ dependent COFF routines:
 .#define bfd_coff_relsz(abfd)  (coff_backend_info (abfd)->_bfd_relsz)
 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
 .#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames)
+.#define bfd_coff_long_section_names(abfd) \
+.        (coff_backend_info (abfd)->_bfd_coff_long_section_names)
 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
 .        ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
 .
@@ -781,9 +903,6 @@ dependent COFF routines:
 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name)\
 .        ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr, name))
 .
-.#define bfd_coff_make_section_hook(abfd, name)\
-.        ((coff_backend_info (abfd)->_bfd_make_section_hook) (abfd, name))
-.
 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
 .        ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
 .
@@ -793,6 +912,10 @@ dependent COFF routines:
 .#define bfd_coff_symname_in_debug(abfd, sym)\
 .        ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
 .
+.#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
+.        ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
+.         (abfd, file, base, symbol, aux, indaux))
+.
 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\
 .        ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
 .         (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
@@ -809,6 +932,9 @@ dependent COFF routines:
 .        ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
 .         (abfd))
 .
+.#define bfd_coff_start_final_link(obfd, info)\
+.        ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
+.         (obfd, info))
 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
 .        ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
 .         (obfd, info, ibfd, o, con, rel, isyms, secs))
@@ -818,6 +944,9 @@ dependent COFF routines:
 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
 .        ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
 .         (obfd, info, ibfd, sec, rel, adjustedp))
+.#define bfd_coff_link_add_one_symbol(info,abfd,name,flags,section,value,string,cp,coll,hashp)\
+.        ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
+.         (info, abfd, name, flags, section, value, string, cp, coll, hashp))
 .
 */
 
@@ -850,22 +979,6 @@ coff_bad_format_hook (abfd, filehdr)
   return true;
 }
 
-static asection *
-coff_make_section_hook (abfd, name)
-     bfd * abfd;
-     char *name;
-{
-#ifdef TWO_DATA_SECS
-  /* FIXME: This predates the call to bfd_make_section_anyway
-     in make_a_section_from_file, and can probably go away.  */
-  /* On SCO a file created by the Microsoft assembler can have two
-     .data sections.  We use .data2 for the second one.  */
-  if (strcmp (name, _DATA) == 0)
-    return bfd_make_section (abfd, ".data2");
-#endif
-  return (asection *) NULL;
-}
-
 /*
    initialize a section structure with information peculiar to this
    particular implementation of coff
@@ -878,10 +991,20 @@ coff_new_section_hook (abfd, section)
 {
   section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
 
+#ifdef RS6000COFF_C
+  if (xcoff_data (abfd)->text_align_power != 0
+      && strcmp (bfd_get_section_name (abfd, section), ".text") == 0)
+    section->alignment_power = xcoff_data (abfd)->text_align_power;
+  if (xcoff_data (abfd)->data_align_power != 0
+      && strcmp (bfd_get_section_name (abfd, section), ".data") == 0)
+    section->alignment_power = xcoff_data (abfd)->data_align_power;
+#endif
+
   /* Allocate aux records for section symbols, to store size and
      related info.
 
-     @@ Shouldn't use constant multiplier here!  */
+     @@ The 10 is a guess at a plausible maximum number of aux entries
+     (but shouldn't be a constant).  */
   coffsymbol (section->symbol)->native =
     (combined_entry_type *) bfd_zalloc (abfd,
                                        sizeof (combined_entry_type) * 10);
@@ -889,13 +1012,20 @@ coff_new_section_hook (abfd, section)
   /* The .stab section must be aligned to 2**2 at most, because
      otherwise there may be gaps in the section which gdb will not
      know how to interpret.  Examining the section name is a hack, but
-     that is also how gdb locates the section.  We also align the
-     .stabstr section this way for backward compatibility, although I
-     believe it would work anyhow.  */
+     that is also how gdb locates the section.
+     We need to handle the .ctors and .dtors sections similarly, to
+     avoid introducing null words in the tables.  */
   if (COFF_DEFAULT_SECTION_ALIGNMENT_POWER > 2
-      && (strncmp (section->name, ".stab", 5) == 0))
+      && (strncmp (section->name, ".stab", 5) == 0
+         || strcmp (section->name, ".ctors") == 0
+         || strcmp (section->name, ".dtors") == 0))
     section->alignment_power = 2;
 
+  /* Similarly, the .stabstr section must be aligned to 2**0 at most.  */
+  if (COFF_DEFAULT_SECTION_ALIGNMENT_POWER > 0
+      && strncmp (section->name, ".stabstr", 8) == 0)
+    section->alignment_power = 0;
+
   return true;
 }
 
@@ -919,12 +1049,149 @@ coff_set_alignment_hook (abfd, section, scnhdr)
 }
 
 #else /* ! I960 */
+#ifdef COFF_WITH_PE
+
+/* a couple of macros to help setting the alignment power field */
+#define ALIGN_SET(field,x,y) \
+  if (((field) & IMAGE_SCN_ALIGN_64BYTES) == x )\
+  {\
+     section->alignment_power = y;\
+  }
+
+#define ELIFALIGN_SET(field,x,y) \
+  else if (( (field) & IMAGE_SCN_ALIGN_64BYTES) == x ) \
+  {\
+     section->alignment_power = y;\
+  }
+
+static void
+coff_set_alignment_hook (abfd, section, scnhdr)
+     bfd * abfd;
+     asection * section;
+     PTR scnhdr;
+{
+  struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
+
+  ALIGN_SET     (hdr->s_flags, IMAGE_SCN_ALIGN_64BYTES, 6)
+  ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_32BYTES, 5)
+  ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_16BYTES, 4)
+  ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_8BYTES,  3)
+  ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_4BYTES,  2)
+  ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_2BYTES,  1)
+  ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_1BYTES,  0)
+
+#ifdef POWERPC_LE_PE
+  if (strcmp (section->name, ".idata$2") == 0)
+    {
+      section->alignment_power = 0;
+    }
+  else if (strcmp (section->name, ".idata$3") == 0)
+    {
+      section->alignment_power = 0;
+    }
+  else if (strcmp (section->name, ".idata$4") == 0)
+    {
+      section->alignment_power = 2;
+    }
+  else if (strcmp (section->name, ".idata$5") == 0)
+    {
+      section->alignment_power = 2;
+    }
+  else if (strcmp (section->name, ".idata$6") == 0)
+    {
+      section->alignment_power = 1;
+    }
+  else if (strcmp (section->name, ".reloc") == 0)
+    {
+      section->alignment_power = 1;
+    }
+  else if (strncmp (section->name, ".stab", 5) == 0)
+    {
+      section->alignment_power = 2;
+    }
+#endif
+
+#ifdef COFF_IMAGE_WITH_PE
+  /* In a PE image file, the s_paddr field holds the virtual size of a
+     section, while the s_size field holds the raw size.  */
+  if (hdr->s_paddr != 0)
+    {
+      if (coff_section_data (abfd, section) == NULL)
+       {
+         section->used_by_bfd =
+           (PTR) bfd_zalloc (abfd, sizeof (struct coff_section_tdata));
+         if (section->used_by_bfd == NULL)
+           {
+             /* FIXME: Return error.  */
+             abort ();
+           }
+       }
+      if (pei_section_data (abfd, section) == NULL)
+       {
+         coff_section_data (abfd, section)->tdata =
+           (PTR) bfd_zalloc (abfd, sizeof (struct pei_section_tdata));
+         if (coff_section_data (abfd, section)->tdata == NULL)
+           {
+             /* FIXME: Return error.  */
+             abort ();
+           }
+       }
+      pei_section_data (abfd, section)->virt_size = hdr->s_paddr;
+    }
+#endif
+
+}
+#undef ALIGN_SET
+#undef ELIFALIGN_SET
+
+#else /* ! COFF_WITH_PE */
+#ifdef RS6000COFF_C
+
+/* We grossly abuse this function to handle XCOFF overflow headers.
+   When we see one, we correct the reloc and line number counts in the
+   real header, and remove the section we just created.  */
+
+static void
+coff_set_alignment_hook (abfd, section, scnhdr)
+     bfd *abfd;
+     asection *section;
+     PTR scnhdr;
+{
+  struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
+  asection *real_sec;
+  asection **ps;
+
+  if ((hdr->s_flags & STYP_OVRFLO) == 0)
+    return;
+
+  real_sec = coff_section_from_bfd_index (abfd, hdr->s_nreloc);
+  if (real_sec == NULL)
+    return;
+
+  real_sec->reloc_count = hdr->s_paddr;
+  real_sec->lineno_count = hdr->s_vaddr;
+
+  for (ps = &abfd->sections; *ps != NULL; ps = &(*ps)->next)
+    {
+      if (*ps == section)
+       {
+         *ps = (*ps)->next;
+         --abfd->section_count;
+         break;
+       }
+    }
+}
+
+#else /* ! RS6000COFF_C */
 
 #define coff_set_alignment_hook \
   ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void)
 
+#endif /* ! RS6000COFF_C */
+#endif /* ! COFF_WITH_PE */
 #endif /* ! I960 */
 
+#ifndef coff_mkobject
 static boolean
 coff_mkobject (abfd)
      bfd * abfd;
@@ -933,25 +1200,22 @@ coff_mkobject (abfd)
 
   abfd->tdata.coff_obj_data = (struct coff_tdata *) bfd_zalloc (abfd, sizeof (coff_data_type));
   if (abfd->tdata.coff_obj_data == 0)
-    {
-      bfd_set_error (bfd_error_no_memory);
-      return false;
-    }
+    return false;
   coff = coff_data (abfd);
   coff->symbols = (coff_symbol_type *) NULL;
   coff->conversion_table = (unsigned int *) NULL;
   coff->raw_syments = (struct coff_ptr_struct *) NULL;
   coff->relocbase = 0;
+  coff->local_toc_sym_map = 0;
+
 /*  make_abs_section(abfd);*/
 
-#ifdef COFF_WITH_PE
-  obj_pe (abfd) = 1;
-#endif
   return true;
 }
+#endif
 
 /* Create the COFF backend specific information.  */
-
+#ifndef coff_mkobject_hook
 static PTR
 coff_mkobject_hook (abfd, filehdr, aouthdr)
      bfd * abfd;
@@ -983,8 +1247,32 @@ coff_mkobject_hook (abfd, filehdr, aouthdr)
     obj_conv_table_size (abfd) =
       internal_f->f_nsyms;
 
+#ifdef RS6000COFF_C
+  if ((internal_f->f_flags & F_SHROBJ) != 0)
+    abfd->flags |= DYNAMIC;
+  if (aouthdr != NULL && internal_f->f_opthdr >= AOUTSZ)
+    {
+      struct internal_aouthdr *internal_a =
+       (struct internal_aouthdr *) aouthdr;
+      struct xcoff_tdata *xcoff;
+
+      xcoff = xcoff_data (abfd);
+      xcoff->full_aouthdr = true;
+      xcoff->toc = internal_a->o_toc;
+      xcoff->sntoc = internal_a->o_sntoc;
+      xcoff->snentry = internal_a->o_snentry;
+      xcoff->text_align_power = internal_a->o_algntext;
+      xcoff->data_align_power = internal_a->o_algndata;
+      xcoff->modtype = internal_a->o_modtype;
+      xcoff->cputype = internal_a->o_cputype;
+      xcoff->maxdata = internal_a->o_maxdata;
+      xcoff->maxstack = internal_a->o_maxstack;
+    }
+#endif
+
   return (PTR) coff;
 }
+#endif
 
 /* Determine the machine architecture and type.  FIXME: This is target
    dependent because the magic numbers are defined in the target
@@ -1005,6 +1293,12 @@ coff_set_arch_mach_hook (abfd, filehdr)
   machine = 0;
   switch (internal_f->f_magic)
     {
+#ifdef PPCMAGIC
+    case PPCMAGIC:
+      arch = bfd_arch_powerpc;
+      machine = 0; /* what does this mean? (krk) */
+      break; 
+#endif
 #ifdef I386MAGIC
     case I386MAGIC:
     case I386PTXMAGIC:
@@ -1067,6 +1361,11 @@ coff_set_arch_mach_hook (abfd, filehdr)
        }
       break;
 #endif
+#ifdef I860
+    case I860MAGIC:
+      arch = bfd_arch_i860;
+      break;
+#endif
 #ifdef I960
 #ifdef I960ROMAGIC
     case I960ROMAGIC:
@@ -1093,22 +1392,85 @@ coff_set_arch_mach_hook (abfd, filehdr)
        case F_I960KA:
          machine = bfd_mach_i960_ka_sa;
          break;
-         /* start-sanitize-i960xl */
-       case F_I960XL:
-         machine = bfd_mach_i960_xl;
+       case F_I960JX:
+         machine = bfd_mach_i960_jx;
+         break;
+       case F_I960HX:
+         machine = bfd_mach_i960_hx;
          break;
-         /* end-sanitize-i960xl */
        }
       break;
 #endif
 #endif
 
-#ifdef U802ROMAGIC
+#ifdef RS6000COFF_C
     case U802ROMAGIC:
     case U802WRMAGIC:
     case U802TOCMAGIC:
-      arch = bfd_arch_rs6000;
-      machine = 6000;
+      {
+       int cputype;
+
+       if (xcoff_data (abfd)->cputype != -1)
+         cputype = xcoff_data (abfd)->cputype & 0xff;
+       else
+         {
+           /* We did not get a value from the a.out header.  If the
+              file has not been stripped, we may be able to get the
+              architecture information from the first symbol, if it
+              is a .file symbol.  */
+           if (obj_raw_syment_count (abfd) == 0)
+             cputype = 0;
+           else
+             {
+               bfd_byte buf[SYMESZ];
+               struct internal_syment sym;
+
+               if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
+                   || bfd_read (buf, 1, SYMESZ, abfd) != SYMESZ)
+                 return false;
+               coff_swap_sym_in (abfd, (PTR) buf, (PTR) &sym);
+               if (sym.n_sclass == C_FILE)
+                 cputype = sym.n_type & 0xff;
+               else
+                 cputype = 0;
+             }
+         }
+
+       /* FIXME: We don't handle all cases here.  */
+       switch (cputype)
+         {
+         default:
+         case 0:
+#ifdef POWERMAC
+           /* PowerPC Macs use the same magic numbers as RS/6000
+              (because that's how they were bootstrapped originally),
+              but they are always PowerPC architecture.  */
+           arch = bfd_arch_powerpc;
+           machine = 0;
+#else
+           arch = bfd_arch_rs6000;
+           machine = 6000;
+#endif /* POWERMAC */
+           break;
+
+         case 1:
+           arch = bfd_arch_powerpc;
+           machine = 601;
+           break;
+         case 2: /* 64 bit PowerPC */
+           arch = bfd_arch_powerpc;
+           machine = 620;
+           break;
+         case 3:
+           arch = bfd_arch_powerpc;
+           machine = 0;
+           break;
+         case 4:
+           arch = bfd_arch_rs6000;
+           machine = 6000;
+           break;
+         }
+      }
       break;
 #endif
 
@@ -1137,6 +1499,15 @@ coff_set_arch_mach_hook (abfd, filehdr)
       break;
 #endif
 
+#ifdef H8300SMAGIC
+    case H8300SMAGIC:
+      arch = bfd_arch_h8300;
+      machine = bfd_mach_h8300s;
+      /* !! FIXME this probably isn't the right place for this */
+      abfd->flags |= BFD_IS_RELAXABLE;
+      break;
+#endif
+
 #ifdef SH_ARCH_MAGIC_BIG
     case SH_ARCH_MAGIC_BIG:
     case SH_ARCH_MAGIC_LITTLE:
@@ -1162,6 +1533,12 @@ coff_set_arch_mach_hook (abfd, filehdr)
       break;
 #endif
 
+#ifdef TIC80_ARCH_MAGIC
+    case TIC80_ARCH_MAGIC:
+      arch = bfd_arch_tic80;
+      break;
+#endif
+
     default:                   /* Unreadable input file type */
       arch = bfd_arch_obscure;
       break;
@@ -1188,6 +1565,131 @@ symname_in_debug_hook (abfd, sym)
 
 #endif
 
+#ifdef RS6000COFF_C
+
+/* Handle the csect auxent of a C_EXT or C_HIDEXT symbol.  */
+
+static boolean coff_pointerize_aux_hook
+  PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
+          unsigned int, combined_entry_type *));
+
+/*ARGSUSED*/
+static boolean
+coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux)
+     bfd *abfd;
+     combined_entry_type *table_base;
+     combined_entry_type *symbol;
+     unsigned int indaux;
+     combined_entry_type *aux;
+{
+  int class = symbol->u.syment.n_sclass;
+
+  if ((class == C_EXT || class == C_HIDEXT)
+      && indaux + 1 == symbol->u.syment.n_numaux)
+    {
+      if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD)
+       {
+         aux->u.auxent.x_csect.x_scnlen.p =
+           table_base + aux->u.auxent.x_csect.x_scnlen.l;
+         aux->fix_scnlen = 1;
+       }
+
+      /* Return true to indicate that the caller should not do any
+         further work on this auxent.  */
+      return true;
+    }
+
+  /* Return false to indicate that this auxent should be handled by
+     the caller.  */
+  return false;
+}
+
+#else
+#ifdef I960
+
+/* We don't want to pointerize bal entries.  */
+
+static boolean coff_pointerize_aux_hook
+  PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
+          unsigned int, combined_entry_type *));
+
+/*ARGSUSED*/
+static boolean
+coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux)
+     bfd *abfd;
+     combined_entry_type *table_base;
+     combined_entry_type *symbol;
+     unsigned int indaux;
+     combined_entry_type *aux;
+{
+  /* Return true if we don't want to pointerize this aux entry, which
+     is the case for the lastfirst aux entry for a C_LEAFPROC symbol.  */
+  return (indaux == 1
+         && (symbol->u.syment.n_sclass == C_LEAFPROC
+             || symbol->u.syment.n_sclass == C_LEAFSTAT
+             || symbol->u.syment.n_sclass == C_LEAFEXT));
+}
+
+#else /* ! I960 */
+
+#define coff_pointerize_aux_hook 0
+
+#endif /* ! I960 */
+#endif /* ! RS6000COFF_C */
+
+/* Print an aux entry.  This returns true if it has printed it.  */
+
+static boolean coff_print_aux
+  PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *,
+          combined_entry_type *, unsigned int));
+
+static boolean
+coff_print_aux (abfd, file, table_base, symbol, aux, indaux)
+     bfd *abfd;
+     FILE *file;
+     combined_entry_type *table_base;
+     combined_entry_type *symbol;
+     combined_entry_type *aux;
+     unsigned int indaux;
+{
+#ifdef RS6000COFF_C
+  if ((symbol->u.syment.n_sclass == C_EXT
+       || symbol->u.syment.n_sclass == C_HIDEXT)
+      && indaux + 1 == symbol->u.syment.n_numaux)
+    {
+      /* This is a csect entry.  */
+      fprintf (file, "AUX ");
+      if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD)
+       {
+         BFD_ASSERT (! aux->fix_scnlen);
+         fprintf (file, "val %5ld", aux->u.auxent.x_csect.x_scnlen.l);
+       }
+      else
+       {
+         fprintf (file, "indx ");
+         if (! aux->fix_scnlen)
+           fprintf (file, "%4ld", aux->u.auxent.x_csect.x_scnlen.l);
+         else
+           fprintf (file, "%4ld",
+                    (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base));
+       }
+      fprintf (file,
+              " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
+              aux->u.auxent.x_csect.x_parmhash,
+              (unsigned int) aux->u.auxent.x_csect.x_snhash,
+              SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp),
+              SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp),
+              (unsigned int) aux->u.auxent.x_csect.x_smclas,
+              aux->u.auxent.x_csect.x_stab,
+              (unsigned int) aux->u.auxent.x_csect.x_snstab);
+      return true;
+    }
+#endif
+
+  /* Return false to indicate that no special action was taken.  */
+  return false;
+}
+
 /*
 SUBSUBSECTION
        Writing relocations
@@ -1204,18 +1706,50 @@ SUBSUBSECTION
 
 */
 
+#ifdef TARG_AUX
+
+static int compare_arelent_ptr PARAMS ((const PTR, const PTR));
+
+/* AUX's ld wants relocations to be sorted */
+static int
+compare_arelent_ptr (x, y)
+     const PTR x;
+     const PTR y;
+{
+  const arelent **a = (const arelent **) x;
+  const arelent **b = (const arelent **) y;
+  bfd_size_type aadr = (*a)->address;
+  bfd_size_type badr = (*b)->address;
+
+  return (aadr < badr ? -1 : badr < aadr ? 1 : 0);
+}
+
+#endif /* TARG_AUX */
+
 static boolean
 coff_write_relocs (abfd, first_undef)
      bfd * abfd;
      int first_undef;
 {
   asection *s;
+
   for (s = abfd->sections; s != (asection *) NULL; s = s->next)
     {
       unsigned int i;
       struct external_reloc dst;
+      arelent **p;
+
+#ifndef TARG_AUX
+      p = s->orelocation;
+#else
+      /* sort relocations before we write them out */
+      p = (arelent **) bfd_malloc (s->reloc_count * sizeof (arelent *));
+      if (p == NULL && s->reloc_count > 0)
+       return false;
+      memcpy (p, s->orelocation, s->reloc_count * sizeof (arelent *));
+      qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr);
+#endif
 
-      arelent **p = s->orelocation;
       if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0)
        return false;
       for (i = 0; i < s->reloc_count; i++)
@@ -1290,6 +1824,11 @@ coff_write_relocs (abfd, first_undef)
          if (bfd_write ((PTR) & dst, 1, RELSZ, abfd) != RELSZ)
            return false;
        }
+
+#ifdef TARG_AUX
+      if (p != NULL)
+       free (p);
+#endif
     }
 
   return true;
@@ -1353,11 +1892,12 @@ coff_set_flags (abfd, magicp, flagsp)
          case bfd_mach_i960_ka_sa:
            flags = F_I960KA;
            break;
-           /* start-sanitize-i960xl */
-         case bfd_mach_i960_xl:
-           flags = F_I960XL;
+         case bfd_mach_i960_jx:
+           flags = F_I960JX;
+           break;
+         case bfd_mach_i960_hx:
+           flags = F_I960HX;
            break;
-           /* end-sanitize-i960xl */
          default:
            return false;
          }
@@ -1371,6 +1911,12 @@ coff_set_flags (abfd, magicp, flagsp)
       *magicp = ARMMAGIC;
       return true;
 #endif
+#ifdef PPCMAGIC
+    case bfd_arch_powerpc:
+      *magicp = PPCMAGIC;
+      return true;
+      break;
+#endif
 #ifdef I386MAGIC
     case bfd_arch_i386:
       *magicp = I386MAGIC;
@@ -1381,13 +1927,24 @@ coff_set_flags (abfd, magicp, flagsp)
       return true;
       break;
 #endif
+#ifdef I860MAGIC
+    case bfd_arch_i860:
+      *magicp = I860MAGIC;
+      return true;
+      break;
+#endif
 #ifdef MC68MAGIC
     case bfd_arch_m68k:
 #ifdef APOLLOM68KMAGIC
       *magicp = APOLLO_COFF_VERSION_NUMBER;
+#else
+      /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c.  */
+#ifdef NAMES_HAVE_UNDERSCORE
+      *magicp = MC68KBCSMAGIC;
 #else
       *magicp = MC68MAGIC;
 #endif
+#endif
 #ifdef LYNXOS
       /* Just overwrite the usual value if we're doing Lynx. */
       *magicp = LYNXCOFFMAGIC;
@@ -1412,13 +1969,16 @@ coff_set_flags (abfd, magicp, flagsp)
        case bfd_mach_h8300h:
          *magicp = H8300HMAGIC;
          return true;
+       case bfd_mach_h8300s:
+         *magicp = H8300SMAGIC;
+         return true;
        }
       break;
 #endif
 
 #ifdef SH_ARCH_MAGIC_BIG
     case bfd_arch_sh:
-      if (abfd->xvec->byteorder_big_p)
+      if (bfd_big_endian (abfd))
        *magicp = SH_ARCH_MAGIC_BIG;
       else
        *magicp = SH_ARCH_MAGIC_LITTLE;
@@ -1445,7 +2005,7 @@ coff_set_flags (abfd, magicp, flagsp)
 #endif
 #ifdef A29K_MAGIC_BIG
     case bfd_arch_a29k:
-      if (abfd->xvec->byteorder_big_p)
+      if (bfd_big_endian (abfd))
        *magicp = A29K_MAGIC_BIG;
       else
        *magicp = A29K_MAGIC_LITTLE;
@@ -1462,7 +2022,9 @@ coff_set_flags (abfd, magicp, flagsp)
 
 #ifdef U802TOCMAGIC
     case bfd_arch_rs6000:
+#ifndef PPCMAGIC
     case bfd_arch_powerpc:
+#endif
       *magicp = U802TOCMAGIC;
       return true;
       break;
@@ -1507,24 +2069,65 @@ coff_compute_section_file_positions (abfd)
   asection *current;
   asection *previous = (asection *) NULL;
   file_ptr sofar = FILHSZ;
-  int page_size;
+
 #ifndef I960
   file_ptr old_sofar;
 #endif
   unsigned int count;
 
+#ifdef RS6000COFF_C
+  /* On XCOFF, if we have symbols, set up the .debug section.  */
+  if (bfd_get_symcount (abfd) > 0)
+    {
+      bfd_size_type sz;
+      bfd_size_type i, symcount;
+      asymbol **symp;
+
+      sz = 0;
+      symcount = bfd_get_symcount (abfd);
+      for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++)
+       {
+         coff_symbol_type *cf;
+
+         cf = coff_symbol_from (abfd, *symp);
+         if (cf != NULL
+             && cf->native != NULL
+             && SYMNAME_IN_DEBUG (&cf->native->u.syment))
+           {
+             size_t len;
+
+             len = strlen (bfd_asymbol_name (*symp));
+             if (len > SYMNMLEN)
+               sz += len + 3;
+           }
+       }
+      if (sz > 0)
+       {
+         asection *dsec;
+
+         dsec = bfd_make_section_old_way (abfd, ".debug");
+         if (dsec == NULL)
+           abort ();
+         dsec->_raw_size = sz;
+         dsec->flags |= SEC_HAS_CONTENTS;
+       }
+    }
+#endif
 
 #ifdef COFF_IMAGE_WITH_PE
+  int page_size;
   if (coff_data (abfd)->link_info) 
     {
-      page_size = pe_value (&(coff_data (abfd)->link_info->pe_info->file_alignment),
-                           PE_DEF_FILE_ALIGNMENT);
+      page_size = pe_data (abfd)->pe_opthdr.FileAlignment;
     }
   else
     page_size = PE_DEF_FILE_ALIGNMENT;
 #else
-  page_size = COFF_PAGE_SIZE;
+#ifdef COFF_PAGE_SIZE
+  int page_size = COFF_PAGE_SIZE;
 #endif
+#endif
+
   if (bfd_get_start_address (abfd))
     {
       /*  A start address may have been added to the original file. In this
@@ -1534,8 +2137,23 @@ coff_compute_section_file_positions (abfd)
 
   if (abfd->flags & EXEC_P)
     sofar += AOUTSZ;
+#ifdef RS6000COFF_C
+  else if (xcoff_data (abfd)->full_aouthdr)
+    sofar += AOUTSZ;
+  else
+    sofar += SMALL_AOUTSZ;
+#endif
 
   sofar += abfd->section_count * SCNHSZ;
+
+#ifdef RS6000COFF_C
+  /* XCOFF handles overflows in the reloc and line number count fields
+     by allocating a new section header to hold the correct counts.  */
+  for (current = abfd->sections; current != NULL; current = current->next)
+    if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
+      sofar += SCNHSZ;
+#endif
+
   for (current = abfd->sections, count = 1;
        current != (asection *) NULL;
        current = current->next, ++count)
@@ -1546,49 +2164,84 @@ coff_compute_section_file_positions (abfd)
       if (!(current->flags & SEC_HAS_CONTENTS))
        continue;
 
-#ifdef COFF_WITH_PE
-      /* Do not include the .junk section.  This is where we collect section
-         data which we don't need.  This is mainly the MS .debug$ data which
-         stores codeview debug data. */
-      if (strcmp (current->name, ".junk") == 0)
-        {
-         continue;
-        }
-#endif
-
       /* Align the sections in the file to the same boundary on
         which they are aligned in virtual memory.  I960 doesn't
         do this (FIXME) so we can stay in sync with Intel.  960
         doesn't yet page from files... */
 #ifndef I960
-      {
-       /* make sure this section is aligned on the right boundary - by
-          padding the previous section up if necessary */
+      if ((abfd->flags & EXEC_P) != 0)
+       {
+         /* make sure this section is aligned on the right boundary - by
+            padding the previous section up if necessary */
 
-       old_sofar = sofar;
-       sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
-       if (previous != (asection *) NULL)
-         {
-           previous->_raw_size += sofar - old_sofar;
-         }
-      }
+         old_sofar = sofar;
+         sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
+         if (previous != (asection *) NULL)
+           {
+             previous->_raw_size += sofar - old_sofar;
+           }
+       }
 
 #endif
 
       /* In demand paged files the low order bits of the file offset
         must match the low order bits of the virtual address.  */
+#ifdef COFF_PAGE_SIZE
       if ((abfd->flags & D_PAGED) != 0
          && (current->flags & SEC_ALLOC) != 0)
        sofar += (current->vma - sofar) % page_size;
-
+#endif
       current->filepos = sofar;
 
+#ifdef COFF_IMAGE_WITH_PE
+      /* With PE we have to pad each section to be a multiple of its
+        page size too, and remember both sizes.  */
+
+      if (coff_section_data (abfd, current) == NULL)
+       {
+         current->used_by_bfd =
+           (PTR) bfd_zalloc (abfd, sizeof (struct coff_section_tdata));
+         if (current->used_by_bfd == NULL)
+           {
+             /* FIXME: Return error.  */
+             abort ();
+           }
+       }
+      if (pei_section_data (abfd, current) == NULL)
+       {
+         coff_section_data (abfd, current)->tdata =
+           (PTR) bfd_zalloc (abfd, sizeof (struct pei_section_tdata));
+         if (coff_section_data (abfd, current)->tdata == NULL)
+           {
+             /* FIXME: Return error.  */
+             abort ();
+           }
+       }
+      if (pei_section_data (abfd, current)->virt_size == 0)
+       pei_section_data (abfd, current)->virt_size = current->_raw_size;
+
+      current->_raw_size = (current->_raw_size + page_size -1) & -page_size;
+#endif
+
       sofar += current->_raw_size;
+
 #ifndef I960
       /* make sure that this section is of the right size too */
-      old_sofar = sofar;
-      sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
-      current->_raw_size += sofar - old_sofar;
+      if ((abfd->flags & EXEC_P) == 0)
+       {
+         bfd_size_type old_size;
+
+         old_size = current->_raw_size;
+         current->_raw_size = BFD_ALIGN (current->_raw_size,
+                                         1 << current->alignment_power);
+         sofar += current->_raw_size - old_size;
+       }
+      else
+       {
+         old_sofar = sofar;
+         sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
+         current->_raw_size += sofar - old_sofar;
+       }
 #endif
 
 #ifdef _LIB
@@ -1601,22 +2254,17 @@ coff_compute_section_file_positions (abfd)
 
       previous = current;
     }
-#ifdef COFF_IMAGE_WITH_PE
-  /* Normally, the starting location for the symbol table will be at the end
-     of the last section.  However, when dealing with NT, the last section
-     must be as long as its size rounded up to the next page (0x1000). */
-  sofar = (sofar + page_size - 1) & -page_size;
-
-  if (previous)
-    previous->_raw_size = (previous->_raw_size + page_size -1) & -page_size;
-#endif
 
   obj_relocbase (abfd) = sofar;
   abfd->output_has_begun = true;
 
 }
 
-#ifndef RS6000COFF_C
+#if 0
+
+/* This can never work, because it is called too late--after the
+   section positions have been set.  I can't figure out what it is
+   for, so I am going to disable it--Ian Taylor 20 March 1996.  */
 
 /* If .file, .text, .data, .bss symbols are missing, add them.  */
 /* @@ Should we only be adding missing symbols, or overriding the aux
@@ -1668,230 +2316,25 @@ coff_add_missing_symbols (abfd)
   nsyms += need_text + need_data + need_bss + need_file;
   sympp2 = (asymbol **) bfd_alloc_by_size_t (abfd, nsyms * sizeof (asymbol *));
   if (!sympp2)
-    {
-      bfd_set_error (bfd_error_no_memory);
-      return false;
-    }
-  memcpy (sympp2, sympp, i * sizeof (asymbol *));
-  if (need_file)
-    {
-      /* @@ Generate fake .file symbol, in sympp2[i], and increment i.  */
-      abort ();
-    }
-  if (need_text)
-    sympp2[i++] = coff_section_symbol (abfd, _TEXT);
-  if (need_data)
-    sympp2[i++] = coff_section_symbol (abfd, _DATA);
-  if (need_bss)
-    sympp2[i++] = coff_section_symbol (abfd, _BSS);
-  BFD_ASSERT (i == nsyms);
-  bfd_set_symtab (abfd, sympp2, nsyms);
-  return true;
-}
-
-#endif /* ! defined (RS6000COFF_C) */
-
-#ifdef COFF_WITH_PE
-static void add_data_entry (abfd, aout, idx, name, base)
-     bfd *abfd;
-     struct internal_aouthdr *aout;
-     int idx;
-     char *name;
-     bfd_vma base;
-{
-  asection *sec = bfd_get_section_by_name (abfd, name);
-
-  /* add import directory information if it exists */
-  if (sec != NULL)
-    {
-      aout->pe->DataDirectory[idx].VirtualAddress = sec->lma - base;
-      aout->pe->DataDirectory[idx].Size = sec->_raw_size;
-      sec->flags |= SEC_DATA;
-    }
-}
-
-
-static void 
-fill_pe_header_info (abfd, internal_f, internal_a)
-     bfd *abfd;
-     struct internal_filehdr *internal_f;
-     struct internal_aouthdr *internal_a;
-{
-  /* assign other filehdr fields for DOS header and NT signature */
-
-  int sa;
-  int fa;
-  bfd_vma ib;
-  bfd_link_pe_info *pe_info = coff_data (abfd)->link_info->pe_info;
-
-  internal_f->f_timdat = time (0);
-
-  if (pe_value  (&pe_info->dll, 0))
-    internal_f->f_flags |=  F_DLL ;
-
-
-  if (bfd_get_section_by_name (abfd, ".reloc"))
-    internal_f->f_flags &= ~F_RELFLG;
-
-
-  memset (internal_f->pe, 0, sizeof (struct internal_extra_pe_filehdr));
-  memset (internal_a->pe, 0, sizeof (struct internal_extra_pe_aouthdr));
-
-
-  ib =  internal_a->pe->ImageBase =  pe_value (&pe_info->image_base, NT_EXE_IMAGE_BASE);
-
-  if (internal_a->tsize) 
-    internal_a->text_start -= ib;
-  if (internal_a->dsize) 
-    internal_a->data_start -= ib;
-  if (internal_a->entry) 
-    internal_a->entry -= ib;
-
-
-  sa =   internal_a->pe->SectionAlignment = pe_value (&pe_info->section_alignment,
-                                                     NT_SECTION_ALIGNMENT);
-
-  fa =   internal_a->pe->FileAlignment = pe_value (&pe_info->file_alignment, 
-                                                  NT_FILE_ALIGNMENT);
-
-#define FA(x)  (((x) + fa -1 ) & (- fa))
-#define SA(x)  (((x) + sa -1 ) & (- sa))
-
-  /* We like to have the sizes aligned */
-
-  internal_a->bsize = FA (internal_a->bsize);
-
-  internal_f->pe->e_magic    = DOSMAGIC;
-  internal_f->pe->e_cblp     = 0x90;
-  internal_f->pe->e_cp       = 0x3;
-  internal_f->pe->e_crlc     = 0x0;
-  internal_f->pe->e_cparhdr  = 0x4;
-  internal_f->pe->e_minalloc = 0x0;
-  internal_f->pe->e_maxalloc = 0xffff;
-  internal_f->pe->e_ss       = 0x0;
-  internal_f->pe->e_sp       = 0xb8;
-  internal_f->pe->e_csum     = 0x0;
-  internal_f->pe->e_ip       = 0x0;
-  internal_f->pe->e_cs       = 0x0;
-  internal_f->pe->e_lfarlc   = 0x40;
-  internal_f->pe->e_ovno     = 0x0;
-  {
-    int idx;
-    for (idx=0; idx < 4; idx++)
-      internal_f->pe->e_res[idx] = 0x0;
-  }
-  internal_f->pe->e_oemid   = 0x0;
-  internal_f->pe->e_oeminfo = 0x0;
-  {
-    int idx;
-    for (idx=0; idx < 10; idx++)
-      internal_f->pe->e_res2[idx] = 0x0;
-  }
-  internal_f->pe->e_lfanew = 0x80;
-
-  /* this next collection of data are mostly just characters.  It appears
-     to be constant within the headers put on NT exes */
-  internal_f->pe->dos_message[0]  = 0x0eba1f0e;
-  internal_f->pe->dos_message[1]  = 0xcd09b400;
-  internal_f->pe->dos_message[2]  = 0x4c01b821;
-  internal_f->pe->dos_message[3]  = 0x685421cd;
-  internal_f->pe->dos_message[4]  = 0x70207369;
-  internal_f->pe->dos_message[5]  = 0x72676f72;
-  internal_f->pe->dos_message[6]  = 0x63206d61;
-  internal_f->pe->dos_message[7]  = 0x6f6e6e61;
-  internal_f->pe->dos_message[8]  = 0x65622074;
-  internal_f->pe->dos_message[9]  = 0x6e757220;
-  internal_f->pe->dos_message[10] = 0x206e6920;
-  internal_f->pe->dos_message[11] = 0x20534f44;
-  internal_f->pe->dos_message[12] = 0x65646f6d;
-  internal_f->pe->dos_message[13] = 0x0a0d0d2e;
-  internal_f->pe->dos_message[14] = 0x24;
-  internal_f->pe->dos_message[15] = 0x0;
-  internal_f->pe->nt_signature = NT_SIGNATURE;
-
-
-  /* write all of the other optional header data */
-
-  internal_a->pe->MajorOperatingSystemVersion =
-    pe_value (&pe_info->major_os_version, 1);
-
-  internal_a->pe->MinorOperatingSystemVersion =
-    pe_value (&pe_info->minor_os_version, 0);
-
-  internal_a->pe->MajorImageVersion =
-    pe_value (&pe_info->major_image_version, 1);
-
-  internal_a->pe->MinorImageVersion =
-    pe_value (&pe_info->minor_image_version, 0);
-
-
-  internal_a->pe->MajorSubsystemVersion =
-    pe_value (&pe_info->major_subsystem_version, 3);
-
-
-  internal_a->pe->MinorSubsystemVersion =
-    pe_value (&pe_info->minor_subsystem_version, 10);
-
-  internal_a->pe->Subsystem =
-    pe_value (&pe_info->subsystem, BFD_PE_CONSOLE);
-
-  /* Virtual start address, take virtual start address of last section, 
-     add its physical size and round up the next page (NT_SECTION_ALIGNMENT).
-     An assumption has been made that the sections stored in the abfd
-     structure are in order and that I have successfully saved the last
-     section's address and size. */
-
-
-
-  /* The headers go up to where the first section starts. */
-
-  internal_a->pe->SizeOfHeaders = abfd->sections->filepos;
-  internal_a->pe->CheckSum = 0;
-  internal_a->pe->DllCharacteristics = 0;
-
-  internal_a->pe->SizeOfStackReserve = pe_value (&pe_info->stack_reserve,
-                                                NT_DEF_RESERVE);
-  internal_a->pe->SizeOfStackCommit = pe_value (&pe_info->stack_commit,
-                                               NT_DEF_COMMIT);
-
-  internal_a->pe->SizeOfHeapReserve = pe_value (&pe_info->heap_reserve,
-                                               NT_DEF_RESERVE);
-  internal_a->pe->SizeOfHeapCommit = pe_value (&pe_info->heap_commit,
-                                              NT_DEF_COMMIT);
-
-  internal_a->pe->LoaderFlags = 0;
-  internal_a->pe->NumberOfRvaAndSizes = IMAGE_NUMBEROF_DIRECTORY_ENTRIES; /* 0x10 */
-
-  /* first null out all data directory entries .. */
-  memset (internal_a->pe->DataDirectory, sizeof (internal_a->pe->DataDirectory), 0);
-
-  add_data_entry (abfd, internal_a, 0, ".edata", ib);
-  add_data_entry (abfd, internal_a, 1, ".idata", ib);
-  add_data_entry (abfd, internal_a, 2, ".rsrc" ,ib);
-  add_data_entry (abfd, internal_a, 5, ".reloc", ib);
-  {
-    asection *sec;
-    bfd_vma dsize= 0;
-    bfd_vma isize = SA(abfd->sections->filepos);
-    bfd_vma tsize= 0;
-    bfd_vma dstart = 0;
-    for (sec = abfd->sections; sec; sec = sec->next)
-      {
-       int rounded = FA(sec->_raw_size);
-       if (sec->flags & SEC_DATA) 
-         dsize += rounded;
-       if (sec->flags & SEC_CODE)
-         tsize += rounded;
-       isize += SA(rounded);
-      }
-
-    internal_a->dsize = dsize;
-    internal_a->tsize = tsize;
-    internal_a->pe->SizeOfImage = isize;
-  }
-
+    return false;
+  memcpy (sympp2, sympp, i * sizeof (asymbol *));
+  if (need_file)
+    {
+      /* @@ Generate fake .file symbol, in sympp2[i], and increment i.  */
+      abort ();
+    }
+  if (need_text)
+    sympp2[i++] = coff_section_symbol (abfd, _TEXT);
+  if (need_data)
+    sympp2[i++] = coff_section_symbol (abfd, _DATA);
+  if (need_bss)
+    sympp2[i++] = coff_section_symbol (abfd, _BSS);
+  BFD_ASSERT (i == nsyms);
+  bfd_set_symtab (abfd, sympp2, nsyms);
+  return true;
 }
-#endif
+
+#endif /* 0 */
 
 /* SUPPRESS 558 */
 /* SUPPRESS 529 */
@@ -1902,55 +2345,34 @@ coff_write_object_contents (abfd)
   asection *current;
   boolean hasrelocs = false;
   boolean haslinno = false;
+  file_ptr scn_base;
   file_ptr reloc_base;
   file_ptr lineno_base;
   file_ptr sym_base;
   unsigned long reloc_size = 0;
   unsigned long lnno_size = 0;
+  boolean long_section_names;
   asection *text_sec = NULL;
   asection *data_sec = NULL;
   asection *bss_sec = NULL;
-
   struct internal_filehdr internal_f;
   struct internal_aouthdr internal_a;
-
-#ifdef COFF_IMAGE_WITH_PE
-  struct internal_extra_pe_aouthdr extra_a;
-  struct internal_extra_pe_filehdr extra_f;
-  bfd_link_pe_info defs;
-  struct bfd_link_info dummy_info;
-  struct bfd_link_info *info ;
-  struct bfd_link_pe_info *pe_info;
-
-  if (coff_data (abfd)->link_info)
-    info =coff_data (abfd)->link_info;
-  else 
-    {
-      coff_data (abfd)->link_info = info = &dummy_info;
-      info->pe_info = 0;
-    }
-  pe_info = (struct bfd_link_pe_info *)(info->pe_info);
-
-  if (!pe_info)
-    {
-      /* Just use sensible defaults */
-      memset (&defs, 0, sizeof (defs));
-      coff_data (abfd)->link_info->pe_info = &defs;
-    }
+#ifdef COFF_LONG_SECTION_NAMES
+  size_t string_size = STRING_SIZE_SIZE;
 #endif
 
   bfd_set_error (bfd_error_system_call);
 
-  if (abfd->output_has_begun == false)
-    coff_compute_section_file_positions (abfd);
-
-  reloc_base = obj_relocbase (abfd);
-
   /* Make a pass through the symbol table to count line number entries and
      put them into the correct asections */
 
   lnno_size = coff_count_linenumbers (abfd) * LINESZ;
 
+  if (abfd->output_has_begun == false)
+    coff_compute_section_file_positions (abfd);
+
+  reloc_base = obj_relocbase (abfd);
+
   /* Work out the size of the reloc and linno areas */
 
   for (current = abfd->sections; current != NULL; current =
@@ -1988,12 +2410,23 @@ coff_write_object_contents (abfd)
   /* Write section headers to the file.  */
   internal_f.f_nscns = 0;
 
-  if (bfd_seek (abfd,
-               (file_ptr) ((abfd->flags & EXEC_P) ?
-                           (FILHSZ + AOUTSZ) : FILHSZ),
-               SEEK_SET) != 0)
+  if ((abfd->flags & EXEC_P) != 0)
+    scn_base = FILHSZ + AOUTSZ;
+  else
+    {
+      scn_base = FILHSZ;
+#ifdef RS6000COFF_C
+      if (xcoff_data (abfd)->full_aouthdr)
+       scn_base += AOUTSZ;
+      else
+       scn_base += SMALL_AOUTSZ;
+#endif
+    }
+
+  if (bfd_seek (abfd, scn_base, SEEK_SET) != 0)
     return false;
 
+  long_section_names = false;
   for (current = abfd->sections;
        current != NULL;
        current = current->next)
@@ -2001,16 +2434,37 @@ coff_write_object_contents (abfd)
       struct internal_scnhdr section;
 
 #ifdef COFF_WITH_PE
-      /* Do not include the .junk section.  This is where we collect section
-        data which we don't need.  This is mainly the MS .debug$ data which
-        stores codeview debug data. */
-      if (strcmp (current->name, ".junk") == 0)
+      /* If we've got a .reloc section, remember. */
+
+#ifdef COFF_IMAGE_WITH_PE
+      if (strcmp (current->name, ".reloc") == 0)
        {
-         continue;
+         pe_data (abfd)->has_reloc_section = 1;
        }
+#endif
+
 #endif
       internal_f.f_nscns++;
-      strncpy (&(section.s_name[0]), current->name, 8);
+
+      strncpy (section.s_name, current->name, SCNNMLEN);
+
+#ifdef COFF_LONG_SECTION_NAMES
+      /* Handle long section names as in PE.  This must be compatible
+         with the code in coff_write_symbols.  */
+      {
+       size_t len;
+
+       len = strlen (current->name);
+       if (len > SCNNMLEN)
+         {
+           memset (section.s_name, 0, SCNNMLEN);
+           sprintf (section.s_name, "/%lu", (unsigned long) string_size);
+           string_size += len + 1;
+           long_section_names = true;
+         }
+      }
+#endif
+
 #ifdef _LIB
       /* Always set s_vaddr of .lib to 0.  This is right for SVR3.2
         Ian Taylor <ian@cygnus.com>.  */
@@ -2018,9 +2472,21 @@ coff_write_object_contents (abfd)
        section.s_vaddr = 0;
       else
 #endif
-       section.s_vaddr = current->lma;
+      section.s_vaddr = current->vma;
       section.s_paddr = current->lma;
-      section.s_size = current->_raw_size;
+      section.s_size =  current->_raw_size;
+
+#ifdef COFF_WITH_PE
+      section.s_paddr = 0;
+#endif
+#ifdef COFF_IMAGE_WITH_PE
+      /* Reminder: s_paddr holds the virtual size of the section.  */
+      if (coff_section_data (abfd, current) != NULL
+         && pei_section_data (abfd, current) != NULL)
+       section.s_paddr = pei_section_data (abfd, current)->virt_size;
+      else
+       section.s_paddr = 0;
+#endif
 
       /*
         If this section has no size or is unloadable then the scnptr
@@ -2044,6 +2510,15 @@ coff_write_object_contents (abfd)
       if (current->lineno_count != 0)
        haslinno = true;
 
+#ifdef RS6000COFF_C
+      /* Indicate the use of an XCOFF overflow section header.  */
+      if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
+       {
+         section.s_nreloc = 0xffff;
+         section.s_nlnno = 0xffff;
+       }
+#endif
+
       section.s_flags = sec_to_styp_flags (current->name, current->flags);
 
       if (!strcmp (current->name, _TEXT))
@@ -2053,12 +2528,6 @@ coff_write_object_contents (abfd)
       else if (!strcmp (current->name, _DATA))
        {
          data_sec = current;
-#ifdef TWO_DATA_SECS
-       }
-      else if (!strcmp (current->name, ".data2"))
-       {
-         data_sec = current;
-#endif /* TWO_DATA_SECS */
        }
       else if (!strcmp (current->name, _BSS))
        {
@@ -2087,9 +2556,99 @@ coff_write_object_contents (abfd)
              || bfd_write ((PTR) (&buff), 1, SCNHSZ, abfd) != SCNHSZ)
            return false;
        }
+
+#ifdef COFF_WITH_PE
+      /* PE stores COMDAT section information in the symbol table.  If
+         this section is supposed to have some COMDAT info, track down
+         the symbol in the symbol table and modify it.  */
+      if ((current->flags & SEC_LINK_ONCE) != 0)
+       {
+         unsigned int i, count;
+         asymbol **psym;
+         coff_symbol_type *csym;
+
+         count = bfd_get_symcount (abfd);
+         for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++)
+           {
+             /* Here *PSYM is the section symbol for CURRENT.  */
+
+             if (strcmp ((*psym)->name, current->name) == 0)
+               {
+                 csym = coff_symbol_from (abfd, *psym);
+                 if (csym == NULL
+                     || csym->native == NULL
+                     || csym->native->u.syment.n_numaux < 1
+                     || csym->native->u.syment.n_sclass != C_STAT
+                     || csym->native->u.syment.n_type != T_NULL)
+                   continue;
+                 break;
+               }
+           }
+
+         /* Did we find it?
+            Note that we might not if we're converting the file from
+            some other object file format.  */
+         if (i < count)
+           {
+             combined_entry_type *aux;
+
+             /* We don't touch the x_checksum field.  The
+                x_associated field is not currently supported.  */
+
+             aux = csym->native + 1;
+             switch (current->flags & SEC_LINK_DUPLICATES)
+               {
+               case SEC_LINK_DUPLICATES_DISCARD:
+                 aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY;
+                 break;
+
+               case SEC_LINK_DUPLICATES_ONE_ONLY:
+                 aux->u.auxent.x_scn.x_comdat =
+                   IMAGE_COMDAT_SELECT_NODUPLICATES;
+                 break;
+
+               case SEC_LINK_DUPLICATES_SAME_SIZE:
+                 aux->u.auxent.x_scn.x_comdat =
+                   IMAGE_COMDAT_SELECT_SAME_SIZE;
+                 break;
+
+               case SEC_LINK_DUPLICATES_SAME_CONTENTS:
+                 aux->u.auxent.x_scn.x_comdat =
+                   IMAGE_COMDAT_SELECT_EXACT_MATCH;
+                 break;
+               }
+           }
+       }
+#endif /* COFF_WITH_PE */
     }
 
+#ifdef RS6000COFF_C
+  /* XCOFF handles overflows in the reloc and line number count fields
+     by creating a new section header to hold the correct values.  */
+  for (current = abfd->sections; current != NULL; current = current->next)
+    {
+      if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
+       {
+         struct internal_scnhdr scnhdr;
+         SCNHDR buff;
 
+         internal_f.f_nscns++;
+         strncpy (&(scnhdr.s_name[0]), current->name, 8);
+         scnhdr.s_paddr = current->reloc_count;
+         scnhdr.s_vaddr = current->lineno_count;
+         scnhdr.s_size = 0;
+         scnhdr.s_scnptr = 0;
+         scnhdr.s_relptr = current->rel_filepos;
+         scnhdr.s_lnnoptr = current->line_filepos;
+         scnhdr.s_nreloc = current->target_index;
+         scnhdr.s_nlnno = current->target_index;
+         scnhdr.s_flags = STYP_OVRFLO;
+         if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0
+             || bfd_write ((PTR) &buff, 1, SCNHSZ, abfd) != SCNHSZ)
+           return false;
+       }
+    }
+#endif
 
   /* OK, now set up the filehdr... */
 
@@ -2101,13 +2660,22 @@ coff_write_object_contents (abfd)
      field does not belong here.  We fill it with a 0 so it compares the
      same but is not a reasonable time. -- gnu@cygnus.com
      */
+  internal_f.f_timdat = 0;
 
   internal_f.f_flags = 0;
 
   if (abfd->flags & EXEC_P)
     internal_f.f_opthdr = AOUTSZ;
   else
-    internal_f.f_opthdr = 0;
+    {
+      internal_f.f_opthdr = 0;
+#ifdef RS6000COFF_C
+      if (xcoff_data (abfd)->full_aouthdr)
+       internal_f.f_opthdr = AOUTSZ;
+      else
+       internal_f.f_opthdr = SMALL_AOUTSZ;
+#endif
+    }
 
   if (!hasrelocs)
     internal_f.f_flags |= F_RELFLG;
@@ -2116,7 +2684,8 @@ coff_write_object_contents (abfd)
   if (abfd->flags & EXEC_P)
     internal_f.f_flags |= F_EXEC;
 
-  if (!abfd->xvec->byteorder_big_p)
+  /* FIXME: this is wrong for PPC_PE! */
+  if (bfd_little_endian (abfd))
     internal_f.f_flags |= F_AR32WR;
   else
     internal_f.f_flags |= F_AR32W;
@@ -2126,6 +2695,13 @@ coff_write_object_contents (abfd)
      architectures.
      */
 
+#ifdef RS6000COFF_C
+  if ((abfd->flags & DYNAMIC) != 0)
+    internal_f.f_flags |= F_SHROBJ;
+  if (bfd_get_section_by_name (abfd, _LOADER) != NULL)
+    internal_f.f_flags |= F_DYNLOAD;
+#endif
+
   memset (&internal_a, 0, sizeof internal_a);
 
   /* Set up architecture-dependent stuff */
@@ -2151,6 +2727,15 @@ coff_write_object_contents (abfd)
       internal_a.magic = NMAGIC; /* Assume separate i/d */
 #define __A_MAGIC_SET__
 #endif /* A29K */
+#ifdef TIC80
+    internal_a.magic = TIC80MAGIC;
+#define __A_MAGIC_SET__
+#endif /* TIC80 */
+#ifdef I860
+    /* FIXME: What are the a.out magic numbers for the i860?  */
+    internal_a.magic = 0;
+#define __A_MAGIC_SET__
+#endif /* I860 */
 #ifdef I960
     internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC);
 #define __A_MAGIC_SET__
@@ -2169,6 +2754,16 @@ coff_write_object_contents (abfd)
 #define __A_MAGIC_SET__
 #if defined(LYNXOS)
     internal_a.magic = LYNXCOFFMAGIC;
+#else
+#if defined(TARG_AUX)
+    internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED :
+                       abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED :
+                       PAGEMAGICEXECSWAPPED);
+#else
+#if defined (PAGEMAGICPEXECPAGED)
+    internal_a.magic = PAGEMAGICPEXECPAGED;
+#endif
+#endif /* TARG_AUX */
 #endif /* LYNXOS */
 #endif /* M68 || WE32K || M68K */
 
@@ -2176,6 +2771,10 @@ coff_write_object_contents (abfd)
 #define __A_MAGIC_SET__
     internal_a.magic = ZMAGIC;
 #endif 
+#if defined(PPC_PE)
+#define __A_MAGIC_SET__
+    internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
+#endif
 #if defined(I386)
 #define __A_MAGIC_SET__
 #if defined(LYNXOS)
@@ -2205,13 +2804,17 @@ coff_write_object_contents (abfd)
 #undef __A_MAGIC_SET__
 #endif
   }
+
+  /* FIXME: Does anybody ever set this to another value?  */
+  internal_a.vstamp = 0;
+
   /* Now should write relocs, strings, syms */
   obj_sym_filepos (abfd) = sym_base;
 
   if (bfd_get_symcount (abfd) != 0)
     {
       int firstundef;
-#ifndef RS6000COFF_C
+#if 0
       if (!coff_add_missing_symbols (abfd))
        return false;
 #endif
@@ -2225,15 +2828,42 @@ coff_write_object_contents (abfd)
       if (! coff_write_relocs (abfd, firstundef))
        return false;
     }
+#ifdef COFF_IMAGE_WITH_PE
+#ifdef PPC_PE
+  else if ((abfd->flags & EXEC_P) != 0)
+    {
+      bfd_byte b;
+
+      /* PowerPC PE appears to require that all executable files be
+         rounded up to the page size.  */
+      b = 0;
+      if (bfd_seek (abfd,
+                   BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1,
+                   SEEK_SET) != 0
+         || bfd_write (&b, 1, 1, abfd) != 1)
+       return false;
+    }
+#endif
+#endif
 
   /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
      backend linker, and obj_raw_syment_count is not valid until after
      coff_write_symbols is called.  */
   if (obj_raw_syment_count (abfd) != 0)
-    internal_f.f_symptr = sym_base;
+    {
+      internal_f.f_symptr = sym_base;
+#ifdef RS6000COFF_C
+      /* AIX appears to require that F_RELFLG not be set if there are
+         local symbols but no relocations.  */
+      internal_f.f_flags &=~ F_RELFLG;
+#endif
+    }
   else
     {
-      internal_f.f_symptr = 0;
+      if (long_section_names)
+       internal_f.f_symptr = sym_base;
+      else
+       internal_f.f_symptr = 0;
       internal_f.f_flags |= F_LSYMS;
     }
 
@@ -2250,37 +2880,118 @@ coff_write_object_contents (abfd)
   if (bss_sec)
     {
       internal_a.bsize = bfd_get_section_size_before_reloc (bss_sec);
+      if (internal_a.bsize && bss_sec->vma < internal_a.data_start)
+       internal_a.data_start = bss_sec->vma;
     }
 
   internal_a.entry = bfd_get_start_address (abfd);
   internal_f.f_nsyms = obj_raw_syment_count (abfd);
 
+#ifdef RS6000COFF_C
+  if (xcoff_data (abfd)->full_aouthdr)
+    {
+      bfd_vma toc;
+      asection *loader_sec;
 
+      internal_a.vstamp = 1;
 
-#ifdef COFF_IMAGE_WITH_PE
+      internal_a.o_snentry = xcoff_data (abfd)->snentry;
+      if (internal_a.o_snentry == 0)
+       internal_a.entry = (bfd_vma) -1;
+
+      if (text_sec != NULL)
+       {
+         internal_a.o_sntext = text_sec->target_index;
+         internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec);
+       }
+      else
+       {
+         internal_a.o_sntext = 0;
+         internal_a.o_algntext = 0;
+       }
+      if (data_sec != NULL)
+       {
+         internal_a.o_sndata = data_sec->target_index;
+         internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec);
+       }
+      else
+       {
+         internal_a.o_sndata = 0;
+         internal_a.o_algndata = 0;
+       }
+      loader_sec = bfd_get_section_by_name (abfd, ".loader");
+      if (loader_sec != NULL)
+       internal_a.o_snloader = loader_sec->target_index;
+      else
+       internal_a.o_snloader = 0;
+      if (bss_sec != NULL)
+       internal_a.o_snbss = bss_sec->target_index;
+      else
+       internal_a.o_snbss = 0;
 
-  internal_f.pe = & extra_f;
-  internal_a.pe = & extra_a;
+      toc = xcoff_data (abfd)->toc;
+      internal_a.o_toc = toc;
+      internal_a.o_sntoc = xcoff_data (abfd)->sntoc;
 
-  fill_pe_header_info (abfd, &internal_f, &internal_a);
+      internal_a.o_modtype = xcoff_data (abfd)->modtype;
+      if (xcoff_data (abfd)->cputype != -1)
+       internal_a.o_cputype = xcoff_data (abfd)->cputype;
+      else
+       {
+         switch (bfd_get_arch (abfd))
+           {
+           case bfd_arch_rs6000:
+             internal_a.o_cputype = 4;
+             break;
+           case bfd_arch_powerpc:
+             if (bfd_get_mach (abfd) == 0)
+               internal_a.o_cputype = 3;
+             else
+               internal_a.o_cputype = 1;
+             break;
+           default:
+             abort ();
+           }
+       }
+      internal_a.o_maxstack = xcoff_data (abfd)->maxstack;
+      internal_a.o_maxdata = xcoff_data (abfd)->maxdata;
+    }
 #endif
 
   /* now write them */
   if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
     return false;
   {
-    FILHDR buff;
-    coff_swap_filehdr_out (abfd, (PTR) & internal_f, (PTR) buff);
-    if (bfd_write ((PTR) buff, 1, FILHSZ, abfd) != FILHSZ)
+    char buff[FILHSZ];
+    coff_swap_filehdr_out (abfd, (PTR) & internal_f, (PTR) buff);
+    if (bfd_write ((PTR) buff, 1, FILHSZ, abfd) != FILHSZ)
       return false;
   }
   if (abfd->flags & EXEC_P)
+    {
+      /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR. 
+        include/coff/pe.h sets AOUTSZ == sizeof(PEAOUTHDR)) */
+      char buff[AOUTSZ];
+      coff_swap_aouthdr_out (abfd, (PTR) & internal_a, (PTR) buff);
+      if (bfd_write ((PTR) buff, 1, AOUTSZ, abfd) != AOUTSZ)
+       return false;
+    }
+#ifdef RS6000COFF_C
+  else
     {
       AOUTHDR buff;
-      coff_swap_aouthdr_out (abfd, (PTR) & internal_a, (PTR) & buff);
-      if (bfd_write ((PTR) & buff, 1, AOUTSZ, abfd) != AOUTSZ)
+      size_t size;
+
+      /* XCOFF seems to always write at least a small a.out header.  */
+      coff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) &buff);
+      if (xcoff_data (abfd)->full_aouthdr)
+       size = AOUTSZ;
+      else
+       size = SMALL_AOUTSZ;
+      if (bfd_write ((PTR) &buff, 1, size, abfd) != size)
        return false;
     }
+#endif
 
   return true;
 }
@@ -2296,13 +3007,44 @@ coff_set_section_contents (abfd, section, location, offset, count)
   if (abfd->output_has_begun == false) /* set by bfd.c handler */
     coff_compute_section_file_positions (abfd);
 
-#ifdef _LIB
-  /* If this is a .lib section, bump the vma address so that it
-       winds up being the number of .lib sections output.  This is
-       right for SVR3.2.  Shared libraries should probably get more
-       generic support.  Ian Taylor <ian@cygnus.com>.  */
-  if (strcmp (section->name, _LIB) == 0)
-    ++section->lma;
+#if defined(_LIB) && !defined(TARG_AUX)
+
+   /* The physical address field of a .lib section is used to hold the
+      number of shared libraries in the section.  This code counts the
+      number of sections being written, and increments the lma field
+      with the number.
+
+      I have found no documentation on the contents of this section.
+      Experimentation indicates that the section contains zero or more
+      records, each of which has the following structure:
+
+      - a (four byte) word holding the length of this record, in words,
+      - a word that always seems to be set to "2",
+      - the path to a shared library, null-terminated and then padded
+        to a whole word boundary.
+
+      bfd_assert calls have been added to alert if an attempt is made
+      to write a section which doesn't follow these assumptions.  The
+      code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
+      <robertl@arnet.com> (Thanks!).
+  
+      Gvran Uddeborg <gvran@uddeborg.pp.se> */
+
+    if (strcmp (section->name, _LIB) == 0)
+      {
+       bfd_byte *rec, *recend;
+
+       rec = (bfd_byte *) location;
+       recend = rec + count;
+       while (rec < recend)
+         {
+           ++section->lma;
+           rec += bfd_get_32 (abfd, rec) * 4;
+         }
+
+       BFD_ASSERT (rec == recend);
+      }
+
 #endif
 
   /* Don't write out bss sections - one way to do this is to
@@ -2356,10 +3098,7 @@ buy_and_read (abfd, where, seek_direction, size)
 {
   PTR area = (PTR) bfd_alloc (abfd, size);
   if (!area)
-    {
-      bfd_set_error (bfd_error_no_memory);
-      return (NULL);
-    }
+    return (NULL);
   if (bfd_seek (abfd, where, seek_direction) != 0
       || bfd_read (area, 1, size, abfd) != size)
     return (NULL);
@@ -2405,10 +3144,7 @@ coff_slurp_line_table (abfd, asect)
   lineno_cache =
     (alent *) bfd_alloc (abfd, (size_t) ((asect->lineno_count + 1) * sizeof (alent)));
   if (lineno_cache == NULL)
-    {
-      bfd_set_error (bfd_error_no_memory);
-      return false;
-    }
+    return false;
   else
     {
       unsigned int counter = 0;
@@ -2423,10 +3159,33 @@ coff_slurp_line_table (abfd, asect)
 
          if (cache_ptr->line_number == 0)
            {
-             coff_symbol_type *sym =
-             (coff_symbol_type *) (dst.l_addr.l_symndx
-                     + obj_raw_syments (abfd))->u.syment._n._n_n._n_zeroes;
+             boolean warned;
+             long symndx;
+             coff_symbol_type *sym;
+
+             warned = false;
+             symndx = dst.l_addr.l_symndx;
+             if (symndx < 0 || symndx >= obj_raw_syment_count (abfd))
+               {
+                 (*_bfd_error_handler)
+                   ("%s: warning: illegal symbol index %ld in line numbers",
+                    bfd_get_filename (abfd), dst.l_addr.l_symndx);
+                 symndx = 0;
+                 warned = true;
+               }
+             /* FIXME: We should not be casting between ints and
+                 pointers like this.  */
+             sym = ((coff_symbol_type *)
+                    ((symndx + obj_raw_syments (abfd))
+                     ->u.syment._n._n_n._n_zeroes));
              cache_ptr->u.sym = (asymbol *) sym;
+             if (sym->lineno != NULL && ! warned)
+               {
+                 (*_bfd_error_handler)
+                   ("%s: warning: duplicate line number information for `%s'",
+                    bfd_get_filename (abfd),
+                    bfd_asymbol_name (&sym->symbol));
+               }
              sym->lineno = cache_ptr;
            }
          else
@@ -2473,20 +3232,14 @@ coff_slurp_symbol_table (abfd)
                             * sizeof (coff_symbol_type))));
 
   if (cached_area == NULL)
-    {
-      bfd_set_error (bfd_error_no_memory);
-      return false;
-    }                          /* on error */
+    return false;
   table_ptr = ((unsigned int *)
               bfd_alloc (abfd,
                          (obj_raw_syment_count (abfd)
                           * sizeof (unsigned int))));
 
   if (table_ptr == NULL)
-    {
-      bfd_set_error (bfd_error_no_memory);
-      return false;
-    }
+    return false;
   else
     {
       coff_symbol_type *dst = cached_area;
@@ -2526,6 +3279,8 @@ coff_slurp_symbol_table (abfd)
 #ifdef COFF_WITH_PE
             /* PE uses storage class 0x68 to denote a section symbol */
             case C_SECTION:
+           /* PE uses storage class 0x67 for a weak external symbol.  */
+           case C_NT_WEAK:
 #endif
              if ((src->u.syment.n_scnum) == 0)
                {
@@ -2542,39 +3297,33 @@ coff_slurp_symbol_table (abfd)
                }
              else
                {
-                 /*
-           Base the value as an index from the base of the
-           section
-           */
+                 /* Base the value as an index from the base of the
+                    section */
 
                  dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
-                 dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma;
+                 dst->symbol.value = (src->u.syment.n_value
+                                      - dst->symbol.section->vma);
 
                  if (ISFCN ((src->u.syment.n_type)))
                    {
-                     /*
-             A function ext does not go at the end of a file
-             */
+                     /* A function ext does not go at the end of a
+                        file.  */
                      dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
                    }
                }
 
 #ifdef RS6000COFF_C
-             /* If this symbol has a csect aux of type LD, the scnlen field
-          is actually the index of the containing csect symbol.  We
-          need to pointerize it.  */
+             /* A C_HIDEXT symbol is not global.  */
+             if (src->u.syment.n_sclass == C_HIDEXT)
+               dst->symbol.flags = BSF_LOCAL;
+             /* A symbol with a csect entry should not go at the end.  */
              if (src->u.syment.n_numaux > 0)
-               {
-                 combined_entry_type *aux;
+               dst->symbol.flags |= BSF_NOT_AT_END;
+#endif
 
-                 aux = src + src->u.syment.n_numaux - 1;
-                 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD)
-                   {
-                     aux->u.auxent.x_csect.x_scnlen.p =
-                       native_symbols + aux->u.auxent.x_csect.x_scnlen.l;
-                     aux->fix_scnlen = 1;
-                   }
-               }
+#ifdef COFF_WITH_PE
+             if (src->u.syment.n_sclass == C_NT_WEAK)
+               dst->symbol.flags = BSF_WEAK;
 #endif
 
              break;
@@ -2588,15 +3337,14 @@ coff_slurp_symbol_table (abfd)
                dst->symbol.flags = BSF_DEBUGGING;
              else
                dst->symbol.flags = BSF_LOCAL;
-             /*
-         Base the value as an index from the base of the section, if
-         there is one
-         */
+
+             /* Base the value as an index from the base of the
+                section, if there is one.  */
              if (dst->symbol.section)
-               dst->symbol.value = (src->u.syment.n_value) -
-                 dst->symbol.section->vma;
+               dst->symbol.value = (src->u.syment.n_value
+                                    - dst->symbol.section->vma);
              else
-               dst->symbol.value = (src->u.syment.n_value);
+               dst->symbol.value = src->u.syment.n_value;
              break;
 
            case C_MOS: /* member of structure   */
@@ -2626,14 +3374,14 @@ coff_slurp_symbol_table (abfd)
            case C_FILE:        /* file name                     */
            case C_STRTAG:      /* structure tag                 */
 #ifdef RS6000COFF_C
-           case C_BINCL:       /* beginning of include file     */
-           case C_EINCL:       /* ending of include file        */
            case C_GSYM:
            case C_LSYM:
            case C_PSYM:
            case C_RSYM:
            case C_RPSYM:
            case C_STSYM:
+           case C_BCOMM:
+           case C_ECOMM:
            case C_DECL:
            case C_ENTRY:
            case C_FUN:
@@ -2644,27 +3392,56 @@ coff_slurp_symbol_table (abfd)
              break;
 
 #ifdef RS6000COFF_C
+           case C_BINCL:       /* beginning of include file     */
+           case C_EINCL:       /* ending of include file        */
+             /* The value is actually a pointer into the line numbers
+                 of the file.  We locate the line number entry, and
+                 set the section to the section which contains it, and
+                 the value to the index in that section.  */
+             {
+               asection *sec;
+
+               dst->symbol.flags = BSF_DEBUGGING;
+               for (sec = abfd->sections; sec != NULL; sec = sec->next)
+                 if (sec->line_filepos <= (file_ptr) src->u.syment.n_value
+                     && ((file_ptr) (sec->line_filepos
+                                     + sec->lineno_count * LINESZ)
+                         > (file_ptr) src->u.syment.n_value))
+                   break;
+               if (sec == NULL)
+                 dst->symbol.value = 0;
+               else
+                 {
+                   dst->symbol.section = sec;
+                   dst->symbol.value = ((src->u.syment.n_value
+                                         - sec->line_filepos)
+                                        / LINESZ);
+                   src->fix_line = 1;
+                 }
+             }
+             break;
+
            case C_BSTAT:
              dst->symbol.flags = BSF_DEBUGGING;
-             dst->symbol.value = src->u.syment.n_value;
 
-             /* The value is actually a symbol index.  Save a pointer to
-          the symbol instead of the index.  FIXME: This should use a
-          union.  */
+             /* The value is actually a symbol index.  Save a pointer
+                to the symbol instead of the index.  FIXME: This
+                should use a union.  */
              src->u.syment.n_value =
                (long) (native_symbols + src->u.syment.n_value);
+             dst->symbol.value = src->u.syment.n_value;
              src->fix_value = 1;
              break;
 #endif
 
            case C_BLOCK:       /* ".bb" or ".eb"                */
-           case C_FCN: /* ".bf" or ".ef"                */
+           case C_FCN:         /* ".bf" or ".ef"                */
            case C_EFCN:        /* physical end of function      */
              dst->symbol.flags = BSF_LOCAL;
-             /*
-         Base the value as an index from the base of the section
-         */
-             dst->symbol.value = (src->u.syment.n_value) - dst->symbol.section->vma;
+             /* Base the value as an index from the base of the
+                section.  */
+             dst->symbol.value = (src->u.syment.n_value
+                                  - dst->symbol.section->vma);
              break;
 
            case C_NULL:
@@ -2675,15 +3452,15 @@ coff_slurp_symbol_table (abfd)
             /* C_LINE in regular coff is 0x68.  NT has taken over this storage
                class to represent a section symbol */
            case C_LINE:        /* line # reformatted as symbol table entry */
-#endif
+             /* NT uses 0x67 for a weak symbol, not C_ALIAS.  */
            case C_ALIAS:       /* duplicate tag                 */
+#endif
            case C_HIDDEN:      /* ext symbol in dmert public lib */
            default:
-
-             fprintf (stderr, "Unrecognized storage class %d (assuming debugging)\n  for %s symbol `%s'\n",
-                      src->u.syment.n_sclass, dst->symbol.section->name,
-                      dst->symbol.name);
-/*     abort();*/
+             (*_bfd_error_handler)
+               ("%s: Unrecognized storage class %d for %s symbol `%s'",
+                bfd_get_filename (abfd), src->u.syment.n_sclass,
+                dst->symbol.section->name, dst->symbol.name);
              dst->symbol.flags = BSF_DEBUGGING;
              dst->symbol.value = (src->u.syment.n_value);
              break;
@@ -2730,10 +3507,6 @@ coff_slurp_symbol_table (abfd)
 #define OTHER_GLOBAL_CLASS C_LEAFEXT
 #endif
 
-#ifdef RS6000COFF_C
-#define OTHER_GLOBAL_CLASS C_HIDEXT
-#endif
-
 #ifdef COFF_WITH_PE
 #define OTHER_GLOBAL_CLASS C_SECTION
 #endif
@@ -2839,10 +3612,7 @@ coff_slurp_reloc_table (abfd, asect, symbols)
     bfd_alloc (abfd, (size_t) (asect->reloc_count * sizeof (arelent)));
 
   if (reloc_cache == NULL)
-    {
-      bfd_set_error (bfd_error_no_memory);
-      return false;
-    }
+    return false;
 
 
   for (idx = 0; idx < asect->reloc_count; idx++)
@@ -2871,11 +3641,20 @@ coff_slurp_reloc_table (abfd, asect, symbols)
 
       if (dst.r_symndx != -1)
        {
-         /* @@ Should never be greater than count of symbols!  */
-         if (dst.r_symndx >= obj_conv_table_size (abfd))
-           abort ();
-         cache_ptr->sym_ptr_ptr = symbols + obj_convert (abfd)[dst.r_symndx];
-         ptr = *(cache_ptr->sym_ptr_ptr);
+         if (dst.r_symndx < 0 || dst.r_symndx >= obj_conv_table_size (abfd))
+           {
+             (*_bfd_error_handler)
+               ("%s: warning: illegal symbol index %ld in relocs",
+                bfd_get_filename (abfd), dst.r_symndx);
+             cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
+             ptr = 0;
+           }
+         else
+           {
+             cache_ptr->sym_ptr_ptr = (symbols
+                                       + obj_convert (abfd)[dst.r_symndx]);
+             ptr = *(cache_ptr->sym_ptr_ptr);
+           }
        }
       else
        {
@@ -2900,6 +3679,14 @@ coff_slurp_reloc_table (abfd, asect, symbols)
       RTYPE2HOWTO (cache_ptr, &dst);
 #endif
 
+      if (cache_ptr->howto == NULL)
+       {
+         (*_bfd_error_handler)
+           ("%s: illegal relocation type %d at address 0x%lx",
+            bfd_get_filename (abfd), dst.r_type, (long) dst.r_vaddr);
+         bfd_set_error (bfd_error_bad_value);
+         return false;
+       }
     }
 
   asect->relocation = reloc_cache;
@@ -3023,7 +3810,6 @@ dummy_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr,
      unsigned int *src_ptr;
      unsigned int *dst_ptr;
 {
-  fprintf (stderr, "%s\n", reloc->howto->name);
   abort ();
 }
 #endif
@@ -3042,16 +3828,28 @@ dummy_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr,
 #endif
 #else /* ! defined (coff_relocate_section) */
 #define coff_relocate_section NULL
+#ifndef coff_bfd_link_hash_table_create
 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
+#endif
+#ifndef coff_bfd_link_add_symbols
 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
+#endif
 #define coff_bfd_final_link _bfd_generic_final_link
 #endif /* ! defined (coff_relocate_section) */
 #define coff_bfd_link_split_section  _bfd_generic_link_split_section
 
+#ifndef coff_start_final_link
+#define coff_start_final_link NULL
+#endif
+
 #ifndef coff_adjust_symndx
 #define coff_adjust_symndx NULL
 #endif
 
+#ifndef coff_link_add_one_symbol
+#define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
+#endif
+
 static CONST bfd_coff_backend_data bfd_coff_std_swap_table =
 {
   coff_swap_aux_in, coff_swap_sym_in, coff_swap_lineno_in,
@@ -3064,28 +3862,45 @@ static CONST bfd_coff_backend_data bfd_coff_std_swap_table =
   true,
 #else
   false,
+#endif
+#ifdef COFF_LONG_SECTION_NAMES
+  true,
+#else
+  false,
 #endif
   coff_swap_filehdr_in, coff_swap_aouthdr_in, coff_swap_scnhdr_in,
   coff_swap_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook,
-  coff_mkobject_hook, styp_to_sec_flags, coff_make_section_hook,
-  coff_set_alignment_hook, coff_slurp_symbol_table, symname_in_debug_hook,
-  coff_reloc16_extra_cases, coff_reloc16_estimate,
+  coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
+  coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
+  coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
   coff_sym_is_global, coff_compute_section_file_positions,
-  coff_relocate_section, coff_rtype_to_howto, coff_adjust_symndx
+  coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
+  coff_adjust_symndx, coff_link_add_one_symbol
 };
 
 #define        coff_close_and_cleanup _bfd_generic_close_and_cleanup
 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
 #define        coff_get_section_contents _bfd_generic_get_section_contents
 
-#define coff_bfd_copy_private_symbol_data \
-  _bfd_generic_bfd_copy_private_symbol_data
-#define coff_bfd_copy_private_section_data \
-  _bfd_generic_bfd_copy_private_section_data
+#ifndef coff_bfd_copy_private_symbol_data
+#define coff_bfd_copy_private_symbol_data  _bfd_generic_bfd_copy_private_symbol_data
+#endif
+
+#ifndef coff_bfd_copy_private_section_data
+#define coff_bfd_copy_private_section_data  _bfd_generic_bfd_copy_private_section_data
+#endif
+
+#ifndef coff_bfd_copy_private_bfd_data 
 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
+#endif
+
 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
 
+#ifndef coff_bfd_print_private_bfd_data 
+#define coff_bfd_print_private_bfd_data  _bfd_generic_bfd_print_private_bfd_data
+#endif
+
 #ifndef coff_bfd_is_local_label
 #define coff_bfd_is_local_label bfd_generic_is_local_label
 #endif
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