checkpoint hp300hpux code from HP; needs cleanup before using

1 files changed, 807 insertions, 0 deletions

diff --git a/bfd/hp300hpux.c b/bfd/hp300hpux.c
new file mode 100644
index 0000000..91b4859
--- /dev/null
+++ b/bfd/hp300hpux.c
@@ -0,0 +1,807 @@
+/* BFD backend for hp-ux 9000/300
+   Copyright (C) 1990-1991 Free Software Foundation, Inc.
+   Written by Glenn Engel.
+
+This file is part of BFD, the Binary File Descriptor library.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+/*
+  
+    hpux native  ------------> |               |
+                               | hp300hpux bfd | ----------> hpux w/gnu ext
+    hpux w/gnu extension ----> |               |
+
+
+    Support for the 9000/[34]00 has several limitations.
+      1. Shared libraries are not supported.
+      2. The output format from this bfd is not usable by native tools.
+      3. Core files are not supported (yet).
+
+    The primary motivation for writing this bfd was to allow use of
+    gdb and gcc for host based debugging and not to mimic the hp-ux tools
+    in every detail.  This leads to a significant simplification of the
+    code and a leap in performance.  The decision to not output hp native
+    compatible objects was further strengthened by the fact that the richness
+    of the gcc compiled objects could not be represented without loss of
+    information.  For example, while the hp format supports the concept of
+    secondary symbols, it does not support indirect symbols.  Another
+    reason is to maintain backwards compatibility with older implementations
+    of gcc on hpux which used 'hpxt' to translate .a and .o files into a
+    format which could be readily understood by the gnu linker and gdb.
+    This allows reading hp secondary symbols and converting them into
+    indirect symbols but the reverse it not always possible.
+
+    Another example of differences is that the hp format stores symbol offsets
+    in the object code while the gnu utilities use a field in the 
+    relocation record for this.  To support the hp native format, the object
+    code would need to be patched with the offsets when producing .o files.
+
+    The basic technique taken in this implementation is to #include the code
+    from aoutx.h and aout-target.h with appropriate #defines to override
+    code where a unique implementation is needed:
+
+    {
+        #define a bunch of stuff
+        #include <aoutx.h>
+
+        implement a bunch of functions
+ 
+        #include "aout-target.h"
+    }
+        
+    The hp symbol table is a bit different than other a.out targets.  Instead
+    of having an array of nlist items and an array of strings, hp's format
+    has them mixed together in one structure.  In addition, the strings are
+    not null terminated.  It looks something like this:
+ 
+    nlist element 1
+    string1
+    nlist element 2
+    string2
+    ...
+ 
+    The whole symbol table is read as one chunk and then we march thru it
+    and convert it to canonical form.  As we march thru the table, we copy
+    the nlist data into the internal form and we compact the strings and null
+    terminate them, using storage from the already allocated symbol table:
+ 
+    string1
+    null
+    string2
+    null
+    
+
+ */
+
+#define ARCH 32
+#define TARGETNAME "a.out-hp300hpux"
+#define MY(OP) CAT(hp300hpux_,OP)
+
+#define external_exec hp300hpux_exec_bytes
+#define external_nlist hp300hpux_nlist_bytes
+
+#include "aout/hp300hpux.h"
+
+/* define these so we can compile unused routines in aoutx.h */
+#define e_strx  e_shlib
+#define e_other e_length
+#define e_desc  e_almod
+
+#define AR_PAD_CHAR '/'
+#define TARGET_IS_BIG_ENDIAN_P 
+#define DEFAULT_ARCH bfd_arch_m68k
+
+#define MY_get_section_contents aout_32_get_section_contents
+#define MY_close_and_cleanup aout_32_close_and_cleanup
+#define MY_slurp_armap bfd_slurp_bsd_armap_f2
+
+/***********************************************/
+/* provide overrides for routines in this file */
+/***********************************************/
+#define MY_get_symtab MY(get_symtab)
+#define MY_get_symtab_upper_bound MY(get_symtab_upper_bound)
+#define MY_canonicalize_reloc MY(canonicalize_reloc)
+#define MY_write_object_contents MY(write_object_contents)
+
+#if 0
+#define MY_write_syms aout_32_write_syms
+#endif
+
+#define hp300hpux_write_syms aout_32_write_syms
+
+#define MY_callback MY(callback)
+
+#define NAME_swap_exec_header_in NAME(aout,swap_exec_header_in)
+
+#define HP_SYMTYPE_UNDEFINED	0x00
+#define HP_SYMTYPE_ABSOLUTE	0x01
+#define HP_SYMTYPE_TEXT		0x02
+#define HP_SYMTYPE_DATA		0x03
+#define HP_SYMTYPE_BSS		0x04
+#define HP_SYMTYPE_COMMON	0x05
+
+#define HP_SYMTYPE_TYPE		0x0F
+#define HP_SYMTYPE_FILENAME	0x1F
+
+#define HP_SYMTYPE_ALIGN	0x10
+#define HP_SYMTYPE_EXTERNAL	0x20
+#define HP_SECONDARY_SYMBOL     0x40
+
+/* RELOCATION DEFINITIONS */
+#define HP_RSEGMENT_TEXT	0x00
+#define HP_RSEGMENT_DATA	0x01
+#define HP_RSEGMENT_BSS		0x02
+#define HP_RSEGMENT_EXTERNAL	0x03
+#define HP_RSEGMENT_PCREL       0x04
+#define HP_RSEGMENT_RDLT        0x05
+#define HP_RSEGMENT_RPLT        0x06
+#define HP_RSEGMENT_NOOP	0x3F
+
+#define HP_RLENGTH_BYTE		0x00
+#define HP_RLENGTH_WORD		0x01
+#define HP_RLENGTH_LONG		0x02
+#define HP_RLENGTH_ALIGN	0x03
+
+#define aout hp300hpux
+#include "aoutx.h"
+
+/* since the hpux symbol table has nlist elements interspersed with strings   */
+/* and we need to insert som strings for secondary symbols, we give ourselves */
+/* a little extra padding up front to account for this.  Note that for each   */
+/* non-secondary symbol we process, we gain 9 bytes of space for the discarded*/
+/* nlist element (one byte used for null).  SYM_EXTRA_BYTES is the extra space*/
+#define SYM_EXTRA_BYTES   1024
+
+/* Set parameters about this a.out file that are machine-dependent.
+   This routine is called from some_aout_object_p just before it returns.  */
+static bfd_target *
+DEFUN(MY(callback),(abfd),
+      bfd *abfd)
+{
+  struct internal_exec *execp = exec_hdr (abfd);
+
+  /* Calculate the file positions of the parts of a newly read aout header */
+  obj_textsec (abfd)->_raw_size = N_TXTSIZE(*execp);
+
+  /* The virtual memory addresses of the sections */
+  obj_textsec (abfd)->vma = N_TXTADDR(*execp);
+  obj_datasec (abfd)->vma = N_DATADDR(*execp);
+  obj_bsssec  (abfd)->vma = N_BSSADDR(*execp);
+
+  /* The file offsets of the sections */
+  obj_textsec (abfd)->filepos = N_TXTOFF (*execp);
+  obj_datasec (abfd)->filepos = N_DATOFF (*execp);
+
+  /* The file offsets of the relocation info */
+  obj_textsec (abfd)->rel_filepos = N_TRELOFF(*execp);
+  obj_datasec (abfd)->rel_filepos = N_DRELOFF(*execp);
+
+  /* The file offsets of the string table and symbol table.  */
+  obj_sym_filepos (abfd) = N_SYMOFF (*execp);
+  obj_str_filepos (abfd) = N_STROFF (*execp);
+  
+  /* Determine the architecture and machine type of the object file.  */
+#ifdef SET_ARCH_MACH
+  SET_ARCH_MACH(abfd, *execp);
+#else
+  bfd_default_set_arch_mach(abfd, DEFAULT_ARCH, 0);
+#endif
+
+
+  if (obj_aout_subformat(abfd) == gnu_encap_format)
+  {
+      /* The file offsets of the relocation info */
+      obj_textsec (abfd)->rel_filepos = N_GNU_TRELOFF(*execp);
+      obj_datasec (abfd)->rel_filepos = N_GNU_DRELOFF(*execp);
+      
+      /* The file offsets of the string table and symbol table.  */
+      obj_sym_filepos (abfd) = N_GNU_SYMOFF(*execp);
+      obj_str_filepos (abfd) = (obj_sym_filepos (abfd) + execp->a_syms);
+      
+      abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
+      bfd_get_symcount (abfd) = execp->a_syms / 12;
+      obj_symbol_entry_size (abfd) = 12;
+      obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
+  }
+     
+  return abfd->xvec;
+}
+
+static boolean
+DEFUN(MY(write_object_contents),(abfd),
+      bfd *abfd)
+{
+    struct external_exec exec_bytes;
+    struct internal_exec *execp = exec_hdr (abfd);
+    bfd_size_type text_size; /* dummy vars */			      
+    file_ptr text_end;
+    
+    memset (&exec_bytes, 0, sizeof (exec_bytes));
+#if CHOOSE_RELOC_SIZE
+    CHOOSE_RELOC_SIZE(abfd);
+#else
+    obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
+#endif
+    
+    if (adata(abfd).magic == undecided_magic)			      
+        NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end);     
+    execp->a_syms = 0;
+    
+    execp->a_entry = bfd_get_start_address (abfd);			      
+    
+    execp->a_trsize = ((obj_textsec (abfd)->reloc_count) *		      
+                       obj_reloc_entry_size (abfd));		      
+    execp->a_drsize = ((obj_datasec (abfd)->reloc_count) *		      
+                       obj_reloc_entry_size (abfd));		      
+    
+    N_SET_MACHTYPE(*execp, 0xc);                                          
+    N_SET_FLAGS (*execp, 0x2);
+    
+    NAME(aout,swap_exec_header_out) (abfd, execp, &exec_bytes);	      
+    
+    /* update fields not covered by default swap_exec_header_out */
+
+    /* this is really the sym table size but we store it in drelocs */
+    bfd_h_put_32 (abfd,  bfd_get_symcount (abfd) * 12, exec_bytes.e_drelocs);
+    
+    bfd_seek (abfd, 0L, false);					      
+    bfd_write ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd);
+    
+    /* Now write out reloc info, followed by syms and strings */	      
+    
+    if (bfd_get_symcount (abfd) != 0) 				      
+    {								      
+        bfd_seek (abfd,	(long)(N_TRELOFF(*execp)), false);	      
+        
+        if (!NAME(aout,squirt_out_relocs) (abfd, obj_textsec (abfd))) return false; 
+        bfd_seek (abfd, (long)(N_DRELOFF(*execp)), false);	      
+        
+        if (!NAME(aout,squirt_out_relocs)(abfd, obj_datasec (abfd))) return false; 
+    }
+
+    MY(write_syms)(abfd);
+    return true;
+}									      
+
+/* convert the hp symbol type to be the same as aout64.h usage so we */
+/* can piggyback routines in aoutx.h.                                */
+
+static void
+DEFUN(convert_sym_type,(sym_pointer, cache_ptr, abfd),
+      struct external_nlist *sym_pointer AND
+      aout_symbol_type *cache_ptr AND
+      bfd *abfd)
+{
+    int name_type;
+    int new_type;
+
+    name_type = (cache_ptr->type);
+    new_type  = 0;
+    
+    if ((name_type & HP_SYMTYPE_ALIGN) != 0)
+    {
+        /* iou_error ("aligned symbol encountered: %s", name);*/
+        name_type = 0;
+    }
+
+    if (name_type == HP_SYMTYPE_FILENAME)
+      new_type = N_FN;
+    else
+      {
+	switch (name_type & HP_SYMTYPE_TYPE)
+	  {
+	  case HP_SYMTYPE_UNDEFINED:
+	    new_type = N_UNDF;
+	    break;
+
+	  case HP_SYMTYPE_ABSOLUTE:
+	    new_type = N_ABS;
+	    break;
+
+	  case HP_SYMTYPE_TEXT:
+	    new_type = N_TEXT;
+	    break;
+
+	  case HP_SYMTYPE_DATA:
+	    new_type = N_DATA;
+	    break;
+
+	  case HP_SYMTYPE_BSS:
+	    new_type = N_BSS;
+	    break;
+
+	  case HP_SYMTYPE_COMMON:
+	    new_type = N_COMM;
+	    break;
+
+	  default:
+	    printf ("unknown symbol type encountered: %x", name_type);
+	  }
+	if (name_type & HP_SYMTYPE_EXTERNAL)
+	  new_type |= N_EXT;
+        
+        if (name_type & HP_SECONDARY_SYMBOL)
+            new_type = (new_type & ~N_TYPE) | N_INDR;
+      }
+    cache_ptr->type = new_type;
+    
+}
+
+
+/*
+DESCRIPTION
+        Swaps the information in an executable header taken from a raw
+        byte stream memory image, into the internal exec_header
+        structure.
+*/
+
+void
+DEFUN(NAME(aout,swap_exec_header_in),(abfd, raw_bytes, execp),
+      bfd *abfd AND
+      struct external_exec *raw_bytes AND
+      struct internal_exec *execp)
+{
+  struct external_exec *bytes = (struct external_exec *)raw_bytes;
+
+  /* The internal_exec structure has some fields that are unused in this
+     configuration (IE for i960), so ensure that all such uninitialized
+     fields are zero'd out.  There are places where two of these structs
+     are memcmp'd, and thus the contents do matter. */
+  memset (execp, 0, sizeof (struct internal_exec));
+  /* Now fill in fields in the execp, from the bytes in the raw data.  */
+  execp->a_info   = bfd_h_get_32 (abfd, bytes->e_info);
+  execp->a_text   = GET_WORD (abfd, bytes->e_text);
+  execp->a_data   = GET_WORD (abfd, bytes->e_data);
+  execp->a_bss    = GET_WORD (abfd, bytes->e_bss);
+  execp->a_syms   = GET_WORD (abfd, bytes->e_syms);
+  execp->a_entry  = GET_WORD (abfd, bytes->e_entry);
+  execp->a_trsize = GET_WORD (abfd, bytes->e_trsize);
+  execp->a_drsize = GET_WORD (abfd, bytes->e_drsize);
+
+  /***************************************************************/
+  /* check the header to see if it was generated by a bfd output */
+  /* this is detected rather bizarely by requiring a bunch of    */
+  /* header fields to be zero and an old unused field (now used) */
+  /* to be set.                                                  */
+  /***************************************************************/
+  do
+  {
+      long syms;
+      struct aout_data_struct  *rawptr;
+      if (bfd_h_get_32 (abfd, bytes->e_passize) != 0) break;
+      if (bfd_h_get_32 (abfd, bytes->e_syms) != 0) break;
+      if (bfd_h_get_32 (abfd, bytes->e_supsize) != 0) break;
+      
+      syms = bfd_h_get_32 (abfd, bytes->e_drelocs);
+      if (syms == 0) break;
+
+      /* OK, we've passed the test as best as we can determine */
+      execp->a_syms = syms;
+
+      /* allocate storage for where we will store this result */
+      rawptr = (struct aout_data_struct  *) bfd_zalloc (abfd, sizeof (*rawptr));
+
+      if (rawptr == NULL) {
+          bfd_error = no_memory;
+          return;
+      }
+      abfd->tdata.aout_data = rawptr;
+      obj_aout_subformat(abfd) = gnu_encap_format;
+  } while (0);
+}
+
+
+/* The hp symbol table is a bit different than other a.out targets.  Instead
+   of having an array of nlist items and an array of strings, hp's format
+   has them mixed together in one structure.  In addition, the strings are
+   not null terminated.  It looks something like this:
+
+   nlist element 1
+   string1
+   nlist element 2
+   string2
+   ...
+
+   The whole symbol table is read as one chunk and then we march thru it
+   and convert it to canonical form.  As we march thru the table, we copy
+   the nlist data into the internal form and we compact the strings and null
+   terminate them, using storage from the already allocated symbol table:
+
+   string1
+   null
+   string2
+   null
+   ...
+*/
+
+boolean
+DEFUN(MY(slurp_symbol_table),(abfd),
+      bfd *abfd)
+{
+  bfd_size_type symbol_bytes;
+  struct external_nlist *syms;
+  struct external_nlist *sym_pointer;
+  struct external_nlist *sym_end;
+  char *strings;
+  aout_symbol_type *cached;
+  unsigned num_syms = 0;
+  unsigned num_secondary = 0;
+  int xxx = 0; /* for translate_from_native_sym_flags */
+    
+  /* If there's no work to be done, don't do any */
+  if (obj_aout_symbols (abfd) != (aout_symbol_type *)NULL) return true;
+  symbol_bytes = exec_hdr(abfd)->a_syms;
+  if (symbol_bytes == 0) {
+    bfd_error = no_symbols;
+    return false;
+  }
+
+  strings = (char *) bfd_alloc(abfd,
+                               symbol_bytes + SYM_EXTRA_BYTES);
+  syms = (struct external_nlist *) (strings + SYM_EXTRA_BYTES);
+  bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET);
+  if (bfd_read ((PTR)syms, symbol_bytes, 1, abfd) != symbol_bytes)
+  {
+      bfd_release (abfd, syms);
+      return false;
+  }
+  
+
+  sym_end = (struct external_nlist *) (((char *)syms) + symbol_bytes);
+  
+  /* first, march thru the table and figure out how many symbols there are */
+  for (sym_pointer = syms; sym_pointer < sym_end; sym_pointer++, num_syms++) 
+  {
+      if (bfd_get_8(abfd,  sym_pointer->e_type) & HP_SECONDARY_SYMBOL)
+          num_secondary++;
+      /* skip over the embedded symbol. */
+      sym_pointer = (struct external_nlist *) (((char *)sym_pointer) +
+                                                     sym_pointer->e_length[0]);
+  }
+
+  /* now that we know the symbol count, update the bfd header */
+  bfd_get_symcount (abfd) = num_syms+num_secondary;
+  
+  cached = (aout_symbol_type *)
+    bfd_zalloc(abfd, (bfd_size_type)(bfd_get_symcount (abfd) *
+                                     sizeof(aout_symbol_type)));
+  
+  /* as we march thru the hp symbol table, convert it into a list of
+     null terminated strings to hold the symbol names.  Make sure any
+     assignment to the strings pointer is done after we're thru using
+     the nlist so we don't overwrite anything important. */
+  num_secondary = 0;
+  
+  /* OK, now walk the new symtable, cacheing symbol properties */
+    {
+      aout_symbol_type *cache_ptr = cached;
+      aout_symbol_type cache_save;
+      /* Run through table and copy values */
+      for (sym_pointer = syms, cache_ptr = cached;
+	   sym_pointer < sym_end; sym_pointer++, cache_ptr++) 
+	  {
+            unsigned int length;
+	    cache_ptr->symbol.the_bfd = abfd;
+	    cache_ptr->symbol.value = GET_SWORD(abfd,  sym_pointer->e_value);
+	    cache_ptr->desc = bfd_get_16(abfd, sym_pointer->e_almod);
+	    cache_ptr->type = bfd_get_8(abfd,  sym_pointer->e_type);
+	    cache_ptr->symbol.udata = 0;
+            length = bfd_get_8(abfd, sym_pointer->e_length);
+	    cache_ptr->other = length;  /* other not used, save length here */
+            
+            cache_save = *cache_ptr;
+            convert_sym_type(sym_pointer, cache_ptr, abfd);
+	    translate_from_native_sym_flags (sym_pointer, cache_ptr, abfd,
+					     &xxx);
+
+            /********************************************************/
+            /* for hpux, the 'lenght' value indicates the length of */
+            /* the symbol name which follows the nlist entry.       */
+            /********************************************************/
+            if (length)
+            {
+                /**************************************************************/
+                /* the hp string is not null terminated so we create a new one*/
+                /* by copying the string to overlap the just vacated nlist    */
+                /* structure before it in memory.                             */
+                /**************************************************************/
+                cache_ptr->symbol.name = strings;
+                memcpy(strings, sym_pointer+1, length);
+                strings[length] = '\0';
+                strings += length + 1;
+            }
+	    else
+	      cache_ptr->symbol.name = (char *)NULL;
+            
+            /**********************************************************/
+            /* this is a bit of a kludge, but a secondary hp symbol   */
+            /* gets translated into a gnu indirect symbol.  When this */
+            /* happens, we need to create a "dummy" record to which   */
+            /* we can point the indirect symbol to.                   */
+            /**********************************************************/
+            if ((cache_ptr->type | N_EXT) == (N_INDR | N_EXT))
+            {
+                aout_symbol_type *cache_ptr2 = cached + num_syms+num_secondary;
+
+                num_secondary++;
+
+                /* aoutx.h assumes the "next" value is the indirect sym  */
+                /* since we don't want to disturb the order by inserting */
+                /* a new symbol, we tack on the created secondary syms   */
+                /* at the end.                                           */
+                cache_ptr->symbol.value = (bfd_vma)(cache_ptr2);
+                *cache_ptr2 = cache_save;
+                cache_ptr2->symbol.name = strings;
+                memcpy(strings, cache_ptr->symbol.name, length);
+                strcpy(strings+length,":secondry"); /* 9 max chars + null */
+                strings += length+10;
+                cache_ptr2->type &= ~HP_SECONDARY_SYMBOL;  /* clear secondary */
+                convert_sym_type(sym_pointer, cache_ptr2, abfd);
+                translate_from_native_sym_flags (sym_pointer, cache_ptr2, abfd,
+						 &xxx);
+            }
+
+            /* skip over the embedded symbol. */
+            sym_pointer = (struct external_nlist *) (((char *)sym_pointer) +
+                                                 length);
+	  }
+    }
+
+  obj_aout_symbols (abfd) =  cached;
+    
+  return true;
+}
+
+
+
+void
+DEFUN(MY(swap_std_reloc_in), (abfd, bytes, cache_ptr, symbols),
+  bfd *abfd AND
+  struct hp300hpux_reloc *bytes AND
+  arelent *cache_ptr AND
+  asymbol **symbols)
+{
+  int r_index;
+  int r_extern = 0;
+  unsigned int r_length;
+  int r_pcrel = 0;
+  int r_baserel = 0, r_jmptable = 0, r_relative = 0;
+  struct aoutdata  *su = &(abfd->tdata.aout_data->a);
+
+  cache_ptr->address = (int32_type)(bfd_h_get_32 (abfd, bytes->r_address));
+  r_index = bfd_h_get_16(abfd, bytes->r_index);
+  
+  switch (bytes->r_type[0])
+  {
+  case HP_RSEGMENT_TEXT:
+      r_index = N_TEXT;
+      break;
+  case HP_RSEGMENT_DATA:
+      r_index = N_DATA;
+      break;
+  case HP_RSEGMENT_BSS:
+      r_index = N_BSS;
+      break;
+  case HP_RSEGMENT_EXTERNAL:
+      r_extern = 1;
+      break;
+  case HP_RSEGMENT_PCREL:
+      r_extern = 1;
+      r_pcrel = 1;
+      break;
+  case HP_RSEGMENT_RDLT:
+      break;
+  case HP_RSEGMENT_RPLT:
+      break;
+  case HP_RSEGMENT_NOOP:
+      break;
+  default:
+      printf
+          ("illegal relocation segment type: %x\n", (bytes->r_type[0]));
+  }
+  
+  switch (bytes->r_length[0])
+    {
+    case HP_RLENGTH_BYTE:
+      r_length = 0;
+      break;
+    case HP_RLENGTH_WORD:
+      r_length = 1;
+      break;
+    case HP_RLENGTH_LONG:
+      r_length = 2;
+      break;
+    default:
+      printf("illegal relocation length: %x\n",bytes->r_length[0] );
+    }
+
+  cache_ptr->howto =  howto_table_std + r_length + 4 * r_pcrel;
+  /* FIXME-soon:  Roll baserel, jmptable, relative bits into howto setting */
+
+  /* This macro uses the r_index value computed above */
+  if (r_pcrel && r_extern)
+  {
+    /* The GNU linker assumes any offset from beginning of section */
+    /* is already incorporated into the image while the HP linker  */
+    /* adds this in later.  Add it in now...                       */
+    MOVE_ADDRESS( - cache_ptr->address);
+  }
+  else
+  {
+    MOVE_ADDRESS(0);
+  }
+}
+
+boolean
+DEFUN(MY(slurp_reloc_table),(abfd, asect, symbols),
+      bfd *abfd AND
+      sec_ptr asect AND
+      asymbol **symbols)
+{
+  unsigned int count;
+  bfd_size_type reloc_size;
+  PTR relocs;
+  arelent *reloc_cache;
+  size_t each_size;
+  struct hp300hpux_reloc *rptr;
+  unsigned int counter;
+  arelent *cache_ptr;
+  
+  if (asect->relocation) return true;
+
+  if (asect->flags & SEC_CONSTRUCTOR) return true;
+
+  if (asect == obj_datasec (abfd)) {
+    reloc_size = exec_hdr(abfd)->a_drsize;
+    goto doit;
+  }
+
+  if (asect == obj_textsec (abfd)) {
+    reloc_size = exec_hdr(abfd)->a_trsize;
+    goto doit;
+  }
+
+  bfd_error = invalid_operation;
+  return false;
+
+ doit:
+  bfd_seek (abfd, asect->rel_filepos, SEEK_SET);
+  each_size = obj_reloc_entry_size (abfd);
+
+  count = reloc_size / each_size;
+
+
+  reloc_cache = (arelent *) bfd_zalloc (abfd, (size_t)(count * sizeof
+						       (arelent)));
+  if (!reloc_cache) {
+nomem:
+    bfd_error = no_memory;
+    return false;
+  }
+
+  relocs = (PTR) bfd_alloc (abfd, reloc_size);
+  if (!relocs) {
+    bfd_release (abfd, reloc_cache);
+    goto nomem;
+  }
+
+  if (bfd_read (relocs, 1, reloc_size, abfd) != reloc_size) {
+    bfd_release (abfd, relocs);
+    bfd_release (abfd, reloc_cache);
+    bfd_error = system_call_error;
+    return false;
+  }
+
+    rptr = (struct hp300hpux_reloc*) relocs;
+    counter = 0;
+    cache_ptr = reloc_cache;
+
+    for (; counter < count; counter++, rptr++, cache_ptr++) {
+	MY(swap_std_reloc_in)(abfd, rptr, cache_ptr, symbols);
+    }
+
+
+  bfd_release (abfd,relocs);
+  asect->relocation = reloc_cache;
+  asect->reloc_count = count;
+  return true;
+}
+
+
+/************************************************************************/
+/* The following functions are identical to functions in aoutx.h except */
+/* they refer to MY(func) rather than NAME(aout,func) and they also     */
+/* call aout_32 versions if the input file was generated by gcc         */
+/************************************************************************/
+
+unsigned int aout_32_get_symtab PARAMS((bfd *abfd, asymbol **location));
+unsigned int aout_32_get_symtab_upper_bound PARAMS ((bfd *abfd));
+
+unsigned int aout_32_canonicalize_reloc PARAMS((bfd *abfd, sec_ptr section,
+                                                arelent **relptr,
+                                                asymbol **symbols));
+
+unsigned int
+DEFUN(MY(get_symtab),(abfd, location),
+      bfd *abfd AND
+      asymbol **location)
+{
+    unsigned int counter = 0;
+    aout_symbol_type *symbase;
+
+    if (obj_aout_subformat(abfd) == gnu_encap_format)
+        return aout_32_get_symtab(abfd,location);
+    
+    if (!MY(slurp_symbol_table)(abfd)) return 0;
+
+    for (symbase = obj_aout_symbols(abfd); counter++ < bfd_get_symcount (abfd);)
+      *(location++) = (asymbol *)( symbase++);
+    *location++ =0;
+    return bfd_get_symcount (abfd);
+}
+
+ unsigned int
+DEFUN(MY(get_symtab_upper_bound),(abfd),
+     bfd *abfd)
+{
+    if (obj_aout_subformat(abfd) == gnu_encap_format)
+        return aout_32_get_symtab_upper_bound(abfd);
+    if (!MY(slurp_symbol_table)(abfd)) return 0;
+
+    return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *));
+}
+
+
+
+
+unsigned int
+DEFUN(MY(canonicalize_reloc),(abfd, section, relptr, symbols),
+      bfd *abfd AND
+      sec_ptr section AND
+      arelent **relptr AND
+      asymbol **symbols)
+{
+  arelent *tblptr = section->relocation;
+  unsigned int count;
+  if (obj_aout_subformat(abfd) == gnu_encap_format)
+      return aout_32_canonicalize_reloc(abfd,section,relptr,symbols); 
+
+  if (!(tblptr || MY(slurp_reloc_table)(abfd, section, symbols)))
+    return 0;
+
+  if (section->flags & SEC_CONSTRUCTOR) {
+    arelent_chain *chain = section->constructor_chain;
+    for (count = 0; count < section->reloc_count; count ++) {
+      *relptr ++ = &chain->relent;
+      chain = chain->next;
+    }
+  }
+  else {
+    tblptr = section->relocation;
+    if (!tblptr) return 0;
+
+    for (count = 0; count++ < section->reloc_count;) 
+      {
+	*relptr++ = tblptr++;
+      }
+  }
+  *relptr = 0;
+
+  return section->reloc_count;
+}
+
+
+#include "aout-target.h"