Initial revision

1 files changed, 1904 insertions, 0 deletions

diff --git a/bfd/aout.c b/bfd/aout.c
new file mode 100755
index 0000000..f857897
--- /dev/null
+++ b/bfd/aout.c
@@ -0,0 +1,1904 @@
+/*** bfd backend for sunos binaries */
+
+/* Copyright (C) 1990, 1991 Free Software Foundation, Inc.
+
+This file is part of BFD, the Binary File Diddler.
+
+BFD 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 1, or (at your option)
+any later version.
+
+BFD 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 BFD; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+/* $Id$
+ * $Log$
+ * Revision 1.1  1991/03/21 21:11:23  gumby
+ * Initial revision
+ *
+ * Revision 1.2  1991/03/15  18:16:52  rich
+ * *** empty log message ***
+ *
+ * Revision 1.12  1991/03/10  19:11:41  rich
+ *  Modified Files:
+ *  	bfd.c coff-code.h libbfd.c libbfd.h srec.c sunos.c
+ *
+ * Working bugs out of coff support.
+ *
+ * Revision 1.11  1991/03/09  03:40:04  rich
+ *  Modified Files:
+ *  	Makefile b.out.c liba.out.h libbfd.c sunos.c sysdep.h
+ *
+ * Changes dictated by porting binutils.
+ *
+ * Revision 1.10  1991/03/08  07:52:02  sac
+ * Reinstalled things which went away after latest merge from Intel.
+ *
+ * Fixed a couple of problems in symbol handling too.
+ *
+ * Revision 1.9  1991/03/08  04:18:16  rich
+ * *** empty log message ***
+ *
+ * Revision 1.8  1991/03/07  21:57:26  sac
+ * Moved type info out of the asymbol into the private space.
+ * Cleaned up C++ stuff
+ *
+ * Revision 1.7  1991/03/06  21:49:02  sac
+ * Modified bfd_find_filename to return name of function too.
+ *
+ * Revision 1.6  1991/03/06  02:19:36  sac
+ * Moved howto table, added support for constructor sections and provided
+ * sunos4_find_nearest_line
+ *
+ * Revision 1.5  1991/03/05  16:25:44  sac
+ * Modified howto vector to include inplace and mask fields.
+ *
+ */
+
+#define TARGET_BYTE_ORDER_BIG_P 1
+#define TARGET TARGET_SPARC
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "libbfd.h"
+#include <stdio.h>
+
+
+/*SUPPRESS558*/
+/*SUPPRESS529*/
+
+
+
+
+typedef void generic_symbol_type;
+/* These values are correct for the SPARC.  I dunno about anything else */
+#define PAGE_SIZE 0x02000
+#define SEGMENT_SIZE PAGE_SIZE
+#define TEXT_START_ADDR PAGE_SIZE
+#include "a.out.gnu.h"
+#include "stab.gnu.h"
+#include "ar.h"
+#include "liba.out.h"           /* BFD a.out internal data structures */
+
+#include "a.out.sun4.h"
+
+#define CTOR_TABLE_RELOC_IDX 2
+static  reloc_howto_type howto_table[] = 
+{
+  /* type                   rs   size bsz  pcrel bitpos  abs ovrf sf name partial inplace mask*/
+{ (unsigned int) RELOC_8,      0,  0,  	8,  false, 0, true,  true,0,"8", 	false, 0x000000ff},
+{ (unsigned int) RELOC_16,     0,  1, 	16, false, 0, true,  true,0,"16", 	false, 0x0000ffff},
+{ (unsigned int) RELOC_32,     0,  2, 	32, false, 0, true,  true,0,"32", 	false,  0xffffffff},
+{ (unsigned int) RELOC_DISP8,  0,  0, 	8,  true,  0, false, true,0,"DISP8", 	false, 0x000000ff},
+{ (unsigned int) RELOC_DISP16, 0,  1, 	16, true,  0, false, true,0,"DISP16", 	false, 0x0000ffff},
+{ (unsigned int) RELOC_DISP32, 0,  2, 	32, true,  0, false, true,0,"DISP32", 	false, 0xffffffff},
+{ (unsigned int) RELOC_WDISP30,2,  2, 	30, true,  0, false, true,0,"WDISP30", 	false, 0x3fffffff},
+{ (unsigned int) RELOC_WDISP22,2,  2, 	22, true,  0, false, true,0,"WDISP22", 	false, 0x003fffff},
+{ (unsigned int) RELOC_HI22,   10, 2, 	22, false, 0, false, true,0,"HI22",	false, 0x003fffff},
+{ (unsigned int) RELOC_22,      0, 2, 	22, false, 0, false, true,0,"22",       false, 0x003fffff},
+{ (unsigned int) RELOC_13, 	0, 2, 	13, false, 0, false, true,0,"13",       false, 0x00001fff},
+{ (unsigned int) RELOC_LO10, 	0, 2, 	10, false, 0, false, true,0,"LO10",     false, 0x000003ff},
+{ (unsigned int) RELOC_SFA_BASE,0, 2, 	32, false, 0, false, true,0,"SFA_BASE", false, 0xffffffff},
+{ (unsigned int) RELOC_SFA_OFF13,0,2, 	32, false, 0, false, true,0,"SFA_OFF13",false, 0xffffffff},
+{ (unsigned int) RELOC_BASE10, 0,  2, 	16, false, 0, false, true,0,"BASE10",   false, 0x0000ffff},
+{ (unsigned int) RELOC_BASE13, 0,  2,	13, false, 0, false, true,0,"BASE13",   false, 0x00001fff},
+{ (unsigned int) RELOC_BASE22, 0,  2,	0,  false, 0, false, true,0,"BASE22",   false, 0x00000000},
+{ (unsigned int) RELOC_PC10,   0,  2,	10, false, 0, false, true,0,"PC10",	false, 0x000003ff},
+{ (unsigned int) RELOC_PC22,   0,  2,	22, false, 0, false, true,0,"PC22",	false, 0x003fffff},
+{ (unsigned int) RELOC_JMP_TBL,0,  2,	32, false, 0, false, true,0,"JMP_TBL",	false, 0xffffffff},
+{ (unsigned int) RELOC_SEGOFF16,0, 2,	0,  false, 0, false, true,0,"SEGOFF16",	false, 0x00000000},
+{ (unsigned int) RELOC_GLOB_DAT,0, 2,	0,  false, 0, false, true,0,"GLOB_DAT",	false, 0x00000000},
+{ (unsigned int) RELOC_JMP_SLOT,0, 2,	0,  false, 0, false, true,0,"JMP_SLOT",	false, 0x00000000},
+{ (unsigned int) RELOC_RELATIVE,0, 2,	0,  false, 0, false, true,0,"RELATIVE",	false, 0x00000000},
+{ (unsigned int) RELOC_JUMPTARG,2, 13,	16, true,  0, false, true,0,"JUMPTARG",	false, 0x0000ffff},
+{ (unsigned int) RELOC_CONST,	0, 13,	16, false, 0, false, true,0,"CONST",	false, 0x0000ffff},
+{ (unsigned int) RELOC_CONSTH, 16, 13,	16, false, 0, false, true,0,"CONSTH",	false, 0x0000ffff},
+};
+
+/** a.out files */
+
+PROTO (static void, swap_exec_header, (bfd *abfd, struct exec *execp));
+PROTO (void , sunos4_write_syms, ());
+PROTO (static boolean,sunos4_squirt_out_relocs,(bfd *abfd, asection *section));
+
+/* Steve wants some way to frob this stuff from Saber while he's debugging
+   ld, so we have these funny shadow functions */
+/* ZMAGIC's start at 0 (making the exec part of the text section),
+  other formats start after the exec
+*/
+unsigned int n_txtoff(ptr)
+struct exec *ptr;
+{return N_MAGIC(*ptr)== ZMAGIC ? 0: sizeof(struct exec);}
+
+unsigned int n_datoff(ptr)
+struct exec *ptr;
+{return n_txtoff(ptr) + ptr->a_text;}
+
+unsigned int n_treloff(ptr)
+struct exec *ptr;
+{return n_datoff(ptr) + ptr->a_data;}
+
+unsigned int n_dreloff(ptr)
+struct exec *ptr;
+{return n_treloff(ptr) + ptr->a_trsize;}
+
+unsigned int n_symoff(ptr)
+struct exec *ptr;
+{return n_dreloff(ptr) + ptr->a_drsize;}
+
+unsigned int n_stroff(ptr)
+struct exec *ptr;
+{return n_symoff(ptr) + ptr->a_syms;}
+
+unsigned int n_badmag(ptr)
+     struct exec *ptr;
+{
+  switch (N_MAGIC(*ptr)) {
+  case OMAGIC: case NMAGIC: case ZMAGIC: return 0;
+  default: return 1;
+  }
+}
+
+
+bfd_target *
+sunos4_object_p (abfd)
+     bfd *abfd;
+{
+  unsigned long magic;
+  struct exec anexec;           /* save consing when you don't have to. */
+  struct exec *execp = &anexec;
+  void *rawptr;
+
+  bfd_error = system_call_error;
+
+  if (bfd_read ((void *)&magic, 1, sizeof (magic), abfd) != sizeof (magic))
+    return 0;
+  magic = bfd_h_getlong (abfd, &magic);
+
+  /* Baroque syntax to mask deficiencies of the Sun compiler */
+  /* if (N_BADMAG (*((struct exec *) &magic))) return 0; */
+  if (n_badmag ((struct exec *) &magic)) return 0;
+
+  if (bfd_seek (abfd, 0L, SEEK_SET) < 0) return 0;
+
+  if (bfd_read ((void *) execp, 1, sizeof (struct exec), abfd)
+      != sizeof (struct exec)) {
+    bfd_error = wrong_format;
+    return 0;
+  }
+
+  /* Use an intermediate variable for clarity */
+  rawptr = (void *) zalloc (sizeof (struct sunexdata) + sizeof (struct exec));
+
+  if (rawptr == NULL) {
+    bfd_error = no_memory;
+    return 0;
+  }
+
+  abfd->tdata =(void *)( (struct sunexdata *) rawptr);
+  exec_hdr (abfd) =
+    (struct exec *) ((char *)rawptr + sizeof (struct sunexdata));
+
+  swap_exec_header (abfd, execp);
+  memcpy (exec_hdr (abfd), execp, sizeof (struct exec));
+
+  /* Set the file flags */
+  abfd->flags = NO_FLAGS;
+  if (execp->a_drsize || execp->a_trsize)
+    abfd->flags |= HAS_RELOC;
+  if (execp->a_entry) 
+    abfd->flags |= EXEC_P;
+  if (execp->a_syms) 
+    abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
+
+
+  if (N_MAGIC (anexec) == ZMAGIC) abfd->flags |= D_PAGED;
+  if (N_MAGIC (anexec) == NMAGIC) abfd->flags |= WP_TEXT;
+
+  /* Determine the architecture and machine type of the object file.  */
+  abfd->obj_arch = bfd_arch_unknown;	/* Default values */
+  abfd->obj_machine = 0;
+  switch (N_MACHTYPE (anexec)) {
+
+  case M_UNKNOWN:
+	break;
+
+  case M_68010:
+	abfd->obj_arch = bfd_arch_m68k;
+	abfd->obj_machine = 68010;
+	break;
+
+  case M_68020:
+	abfd->obj_arch = bfd_arch_m68k;
+	abfd->obj_machine = 68020;
+	break;
+
+  case M_SPARC:
+	abfd->obj_arch = bfd_arch_sparc;
+	break;
+
+  case M_386:
+	abfd->obj_arch = bfd_arch_i386;
+	break;
+
+  case M_29K:
+	abfd->obj_arch = bfd_arch_a29k;
+	break;
+
+  default:
+	abfd->obj_arch = bfd_arch_obscure;
+	break;
+  }
+
+  bfd_get_start_address (abfd) = execp->a_entry;
+
+  /* Remember the positions of the string table and symbol table.  */
+  obj_str_filepos (abfd) = n_stroff (&anexec);
+  obj_sym_filepos (abfd) = n_symoff (&anexec);
+
+  /* create the sections.  This is raunchy, but bfd_close wants to reclaim
+     them */
+  obj_textsec (abfd) = (asection *)NULL;
+  obj_datasec (abfd) = (asection *)NULL;
+  obj_bsssec (abfd) = (asection *)NULL;
+  obj_aout_symbols(abfd) = (aout_symbol_type *)NULL;
+  (void)bfd_make_section(abfd, ".text");
+  (void)bfd_make_section(abfd, ".data");
+  (void)bfd_make_section(abfd, ".bss");
+
+  obj_datasec (abfd)->size = execp->a_data;
+  obj_bsssec (abfd)->size = execp->a_bss;
+  obj_textsec (abfd)->size = execp->a_text;
+  obj_datasec (abfd)->vma = N_DATADDR(anexec);
+  obj_bsssec (abfd)->vma = N_BSSADDR(anexec);
+  obj_textsec (abfd)->vma = N_TXTADDR(anexec);
+
+  obj_textsec (abfd)->filepos = n_txtoff(&anexec);
+  obj_datasec (abfd)->filepos = n_datoff(&anexec);
+
+  obj_textsec (abfd)->rel_filepos = n_treloff(&anexec);
+  obj_datasec (abfd)->rel_filepos = n_dreloff(&anexec);
+
+  obj_textsec (abfd)->flags =
+    (execp->a_trsize != 0 ?
+                 (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_HAS_CONTENTS) :
+                 (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS));
+  obj_datasec (abfd)->flags =
+    (execp->a_drsize != 0 ?
+                               (SEC_ALLOC | SEC_LOAD | SEC_RELOC  | SEC_HAS_CONTENTS) :
+                               (SEC_ALLOC | SEC_LOAD  | SEC_HAS_CONTENTS));
+  obj_bsssec (abfd)->flags = SEC_ALLOC;
+
+  abfd->sections = obj_textsec (abfd);
+  obj_textsec (abfd)->next = obj_datasec (abfd);
+  obj_datasec (abfd)->next = obj_bsssec (abfd);
+  return abfd->xvec;
+}
+
+
+boolean
+sunos4_mkobject (abfd)
+     bfd *abfd;
+{
+  char *rawptr;
+
+  bfd_error = system_call_error;
+
+  /* Use an intermediate variable for clarity */
+  rawptr =  zalloc (sizeof (struct sunexdata) + sizeof (struct exec));
+
+  if (rawptr == NULL) {
+    bfd_error = no_memory;
+    return false;
+  }
+
+  abfd->tdata = (void *)((struct sunexdata *) rawptr);
+  exec_hdr (abfd) = (struct exec *) (rawptr + sizeof (struct sunexdata));
+
+  /* For simplicity's sake we just make all the sections right here. */
+
+  obj_textsec (abfd) = (asection *)NULL;
+  obj_datasec (abfd) = (asection *)NULL;
+  obj_bsssec (abfd) = (asection *)NULL;
+  bfd_make_section (abfd, ".text");
+  bfd_make_section (abfd, ".data");
+  bfd_make_section (abfd, ".bss");
+
+  return true;
+}
+
+/* Keep track of machine architecture and machine type for a.out's.
+   Return the machine_type for a particular arch&machine, or M_UNKNOWN
+   if that exact arch&machine can't be represented in a.out format.
+
+   If the architecture is understood, machine type 0 (default) should
+   always be understood.  */
+
+static enum machine_type
+aout_machine_type (arch, machine)
+     enum bfd_architecture arch;
+     unsigned long machine;
+{
+  enum machine_type arch_flags;
+
+  arch_flags = M_UNKNOWN;
+
+  switch (arch) {
+  case bfd_arch_sparc:
+	if (machine == 0)	arch_flags = M_SPARC;
+	break;
+
+  case bfd_arch_m68k:
+	switch (machine) {
+	case 0:			arch_flags = M_UNKNOWN; break;
+	case 68000:		arch_flags = M_UNKNOWN;	break;
+	case 68010:		arch_flags = M_68010; break;
+	case 68020:		arch_flags = M_68020; break;
+	default:		arch_flags = M_UNKNOWN; break;
+	}
+	break;
+
+  case bfd_arch_i386:
+	if (machine == 0)	arch_flags = M_386;
+	break;
+
+  case bfd_arch_a29k:
+	if (machine == 0)	arch_flags = M_29K;
+	break;
+
+  default:
+	arch_flags = M_UNKNOWN;
+	break;
+  }
+  return arch_flags;
+}
+
+boolean
+sunos4_set_arch_mach (abfd, arch, machine)
+     bfd *abfd;
+     enum bfd_architecture arch;
+     unsigned long machine;
+{
+  abfd->obj_arch = arch;
+  abfd->obj_machine = machine;
+  if (arch != bfd_arch_unknown &&
+      aout_machine_type (arch, machine) == M_UNKNOWN)
+    return false;		/* We can't represent this type */
+  return true;			/* We're easy ... */
+}
+
+boolean
+sunos4_write_object_contents (abfd)
+     bfd *abfd;
+{
+  int data_pad = 0;
+  struct exec *execp = exec_hdr (abfd);
+
+
+
+  /* Magic number, maestro, please!  */
+  switch (bfd_get_architecture(abfd)) {
+  case bfd_arch_m68k:
+    switch (bfd_get_machine(abfd)) {
+    case 68010:
+      N_SET_MACHTYPE(*execp, M_68010);
+      break;
+    default:
+    case 68020:
+      N_SET_MACHTYPE(*execp, M_68020);
+      break;
+    }
+    break;
+  case bfd_arch_sparc:
+    N_SET_MACHTYPE(*execp, M_SPARC);
+    break;
+  case bfd_arch_i386:
+    N_SET_MACHTYPE(*execp, M_386);
+    break;
+  case bfd_arch_a29k:
+    N_SET_MACHTYPE(*execp, M_29K);
+    break;
+  default:
+    N_SET_MACHTYPE(*execp, M_UNKNOWN);
+  }
+  execp->a_text = obj_textsec (abfd)->size;
+  N_SET_MAGIC (*execp, OMAGIC);
+  if (abfd->flags & D_PAGED) {
+    execp->a_text = obj_textsec (abfd)->size + sizeof(struct exec);
+    N_SET_MAGIC (*execp, ZMAGIC);
+  } else if (abfd->flags & WP_TEXT) {
+    N_SET_MAGIC (*execp, NMAGIC);
+  }
+  N_SET_FLAGS (*execp, 0x1);	/* copied from ld.c; who the hell knows? */
+
+  if (abfd->flags & D_PAGED) 
+    {
+      data_pad = ((obj_datasec(abfd)->size + PAGE_SIZE -1)
+		  & (- PAGE_SIZE)) - obj_datasec(abfd)->size;
+
+      if (data_pad > obj_bsssec(abfd)->size)
+	execp->a_bss = 0;
+      else 
+	execp->a_bss = obj_bsssec(abfd)->size - data_pad;
+      execp->a_data = obj_datasec(abfd)->size + data_pad;
+
+    }
+  else {
+    execp->a_data = obj_datasec (abfd)->size;
+    execp->a_bss = obj_bsssec (abfd)->size;
+  }
+
+  execp->a_syms = bfd_get_symcount (abfd) * sizeof (struct nlist);
+  execp->a_entry = bfd_get_start_address (abfd);
+  execp->a_trsize = ((obj_textsec (abfd)->reloc_count) *
+		     sizeof (struct reloc_info_extended));
+  execp->a_drsize = ((obj_datasec (abfd)->reloc_count) *
+		     sizeof (struct reloc_info_extended));;
+
+  swap_exec_header (abfd, execp);
+
+  bfd_seek (abfd, 0L, SEEK_SET);
+  bfd_write ((void *) execp, 1, sizeof (struct exec), abfd);
+
+  /* Now write out reloc info, followed by syms and strings */
+
+  if (bfd_get_symcount (abfd) != 0) 
+    {
+      bfd_seek (abfd,
+		(long)(N_SYMOFF(*execp)), SEEK_SET);
+
+      sunos4_write_syms (abfd);
+
+      bfd_seek (abfd,	(long)(N_TROFF(*execp)), SEEK_SET);
+
+      if (!sunos4_squirt_out_relocs (abfd, obj_textsec (abfd))) return false;
+      bfd_seek (abfd, (long)(N_DROFF(*execp)), SEEK_SET);
+
+      if (!sunos4_squirt_out_relocs (abfd, obj_datasec (abfd))) return false;
+    }
+  return true;
+}
+
+static void
+swap_exec_header (abfd, execp)
+bfd *abfd;
+     struct exec *execp;
+{
+  if (bfd_header_twiddle_required(abfd)) {
+    /* execp->a_info = bfd_h_getlong (abfd, &execp->a_info); */
+    *(unsigned long *) execp =
+		      bfd_h_getlong (abfd, (unsigned long *) execp);
+    execp->a_text   = bfd_h_getlong (abfd, &execp->a_text);
+    execp->a_data   = bfd_h_getlong (abfd, &execp->a_data);
+    execp->a_bss    = bfd_h_getlong (abfd, &execp->a_bss);
+    execp->a_syms   = bfd_h_getlong (abfd, &execp->a_syms);
+    execp->a_entry  = bfd_h_getlong (abfd, &execp->a_entry);
+    execp->a_trsize = bfd_h_getlong (abfd, &execp->a_trsize);
+    execp->a_drsize = bfd_h_getlong (abfd, &execp->a_drsize);
+  }
+} /* swap_exec_header() */
+
+/** core files */
+
+#define CORE_MAGIC 0x080456
+#define CORE_NAMELEN 16
+
+/* The core structure is taken from the Sun documentation.
+   Unfortunately, they don't document the FPA structure, or at least I
+   can't find it easily.  Fortunately the core header contains its own
+   length.  So this shouldn't cause problems, except for c_ucode, which
+   so far we don't use but is easy to find with a little arithmetic. */
+
+/* But the reg structure can be gotten from the SPARC processor handbook.
+   This really should be in a GNU include file though so that gdb can use
+   the same info. */
+struct regs {
+  int r_psr;
+  int r_pc;
+  int r_npc;
+  int r_y;
+  int r_g1;
+  int r_g2;
+  int r_g3;
+  int r_g4;
+  int r_g5;
+  int r_g6;
+  int r_g7;
+  int r_o0;
+  int r_o1;
+  int r_o2;
+  int r_o3;
+  int r_o4;
+  int r_o5;
+  int r_o6;
+  int r_o7;
+};
+
+/* Taken from Sun documentation: */
+
+struct core {
+  int c_magic;			/* Corefile magic number */
+  int c_len;			/* Sizeof (struct core) */
+  struct regs c_regs;		/* General purpose registers */
+  struct exec c_aouthdr;	/* A.out header */
+  int c_signo;			/* Killing signal, if any */
+  int c_tsize;			/* Text size (bytes) */
+  int c_dsize;			/* Data size (bytes) */
+  int c_ssize;			/* Stack size (bytes) */
+  char c_cmdname[CORE_NAMELEN + 1]; /* Command name */
+  double fp_stuff[1];		/* external FPU state (size unknown by us) */
+			/* The type "double" is critical here, for alignment.
+			   SunOS declares a struct here, but the struct's
+			   alignment is double since it contains doubles. */
+  int c_ucode;			/* Exception no. from u_code */
+			/* (this member not accessible by name since we don't
+			   portably know the size of fp_stuff.) */
+};
+
+/* Supposedly the user stack grows downward from the bottom of kernel memory.
+   Presuming that this remains true, this definition will work. */
+#define USRSTACK (-(128*1024*1024))
+
+PROTO (static void, swapcore, (bfd *abfd, struct core *core));
+
+/* need this cast b/c ptr is really void * */
+#define core_hdr(bfd) (((struct suncordata *) (bfd->tdata))->hdr)
+#define core_datasec(bfd) (((struct suncordata *) ((bfd)->tdata))->data_section)
+#define core_stacksec(bfd) (((struct suncordata*)((bfd)->tdata))->stack_section)
+#define core_regsec(bfd) (((struct suncordata *) ((bfd)->tdata))->reg_section)
+#define core_regsec2(bfd) (((struct suncordata *) ((bfd)->tdata))->reg2_section)
+
+/* These are stored in the bfd's tdata */
+struct suncordata {
+  struct core *hdr;             /* core file header */
+  asection *data_section;
+  asection *stack_section;
+  asection *reg_section;
+  asection *reg2_section;
+};
+
+bfd_target *
+sunos4_core_file_p (abfd)
+     bfd *abfd;
+{
+  /* includes redundent variables for code clarity */
+  int core_size;
+  int core_mag;
+  struct core *core;
+  char *rawptr;
+
+  bfd_error = system_call_error;
+
+  if (bfd_read ((void *)&core_mag, 1, sizeof (int), abfd) != sizeof (int))
+    return 0;
+  core_mag = bfd_h_getlong(abfd, &core_mag);
+
+  if (core_mag != CORE_MAGIC) return 0;
+
+  /* SunOS core headers can vary in length; second word is size; */
+  if (bfd_read ((void *)&core_size, 1, sizeof (int), abfd) != sizeof (int))
+    return 0;
+  core_size = bfd_h_getlong(abfd, &core_size);
+
+  if (bfd_seek (abfd, 0L, SEEK_SET) < 0) return 0;
+
+  rawptr = zalloc (core_size + sizeof (struct suncordata));
+  if (rawptr == NULL) {
+    bfd_error = no_memory;
+    return 0;
+  }
+
+  core = (struct core *) (rawptr + sizeof (struct suncordata));
+
+  if ((bfd_read ((void *) core, 1, core_size, abfd)) != core_size) {
+    bfd_error = system_call_error;
+    free ((void *)rawptr);
+    return 0;
+  }
+
+  swapcore (abfd, core);
+  abfd->tdata = (void *)((struct suncordata *) rawptr);
+  core_hdr (abfd) = core;
+
+  /* create the sections.  This is raunchy, but bfd_close wants to reclaim
+     them */
+  core_stacksec (abfd) = (asection *) zalloc (sizeof (asection));
+  if (core_stacksec (abfd) == NULL) {
+  loser:
+    bfd_error = no_memory;
+    free ((void *)rawptr);
+    return 0;
+  }
+  core_datasec (abfd) = (asection *) zalloc (sizeof (asection));
+  if (core_datasec (abfd) == NULL) {
+  loser1:
+    free ((void *)core_stacksec (abfd));
+    goto loser;
+  }
+  core_regsec (abfd) = (asection *) zalloc (sizeof (asection));
+  if (core_regsec (abfd) == NULL) {
+  loser2:
+    free ((void *)core_datasec (abfd));
+    goto loser1;
+  }
+  core_regsec2 (abfd) = (asection *) zalloc (sizeof (asection));
+  if (core_regsec2 (abfd) == NULL) {
+    free ((void *)core_regsec (abfd));
+    goto loser2;
+  }
+
+  core_stacksec (abfd)->name = ".stack";
+  core_datasec (abfd)->name = ".data";
+  core_regsec (abfd)->name = ".reg";
+  core_regsec2 (abfd)->name = ".reg2";
+
+  core_stacksec (abfd)->flags = SEC_ALLOC + SEC_LOAD;
+  core_datasec (abfd)->flags = SEC_ALLOC + SEC_LOAD;
+  core_regsec (abfd)->flags = SEC_ALLOC;
+  core_regsec2 (abfd)->flags = SEC_ALLOC;
+
+  core_stacksec (abfd)->size = core->c_ssize;
+  core_datasec (abfd)->size = core->c_dsize;
+  core_regsec (abfd)->size = (sizeof core->c_regs);
+  /* Float regs take up end of struct, except c_ucode. */
+  core_regsec2 (abfd)->size = core_size - (sizeof core->c_ucode) - 
+				(file_ptr)(((struct core *)0)->fp_stuff);
+
+  core_stacksec (abfd)->vma = (USRSTACK - core->c_ssize);
+  core_datasec (abfd)->vma = N_DATADDR(core->c_aouthdr);
+  core_regsec (abfd)->vma = -1;
+  core_regsec2 (abfd)->vma = -1;
+
+  core_stacksec (abfd)->filepos = core->c_len + core->c_dsize;
+  core_datasec (abfd)->filepos = core->c_len;
+                        /* In file header: */
+  core_regsec (abfd)->filepos = (file_ptr)(&((struct core *)0)->c_regs);
+  core_regsec2 (abfd)->filepos = (file_ptr)(((struct core *)0)->fp_stuff);
+
+  /* Align to word at least */
+  core_stacksec (abfd)->alignment_power = 2;
+  core_datasec (abfd)->alignment_power = 2;
+  core_regsec (abfd)->alignment_power = 2;
+  core_regsec2 (abfd)->alignment_power = 2;
+
+  abfd->sections = core_stacksec (abfd);
+  core_stacksec (abfd)->next = core_datasec (abfd);
+  core_datasec (abfd)->next = core_regsec (abfd);
+  core_regsec (abfd)->next = core_regsec2 (abfd);
+
+  abfd->section_count = 4;
+
+  return abfd->xvec;
+}
+
+char *
+sunos4_core_file_failing_command (abfd)
+     bfd *abfd;
+{
+  return core_hdr (abfd)->c_cmdname;
+}
+
+int
+sunos4_core_file_failing_signal (abfd)
+     bfd *abfd;
+{
+  return core_hdr (abfd)->c_signo;
+}
+
+boolean
+sunos4_core_file_matches_executable_p  (core_bfd, exec_bfd)
+     bfd *core_bfd, *exec_bfd;
+{
+  if (core_bfd->xvec != exec_bfd->xvec) {
+    bfd_error = system_call_error;
+    return false;
+  }
+
+  return (bcmp (&core_hdr (core_bfd), &exec_hdr (exec_bfd),
+                sizeof (struct exec)) == 0) ? true : false;
+}
+
+/* byte-swap core structure */
+static void
+swapcore (abfd, core)
+bfd *abfd;
+     struct core *core;
+{
+  if (bfd_header_twiddle_required(abfd)) {
+    core->c_magic = bfd_h_getlong (abfd, &core->c_magic);
+    core->c_len   = bfd_h_getlong (abfd, &core->c_len);
+    /* regs */
+    swap_exec_header (abfd, &(core->c_aouthdr));
+    core->c_signo = bfd_h_getlong (abfd, &core->c_signo);
+    core->c_tsize = bfd_h_getlong (abfd, &core->c_tsize);
+    core->c_dsize = bfd_h_getlong (abfd, &core->c_dsize);
+    core->c_ssize = bfd_h_getlong (abfd, &core->c_ssize);
+    core->c_ucode = bfd_h_getlong (abfd, &core->c_ucode);
+    /* I don't understand how to swap an FP register */
+  }
+}
+
+/** exec and core file sections */
+
+boolean
+sunos4_new_section_hook (abfd, newsect)
+     bfd *abfd;
+     asection *newsect;
+{
+  /* align to double at least */
+  newsect->alignment_power = 3;
+
+  if (bfd_get_format (abfd) == bfd_object) {
+    if (obj_textsec(abfd) == NULL && !strcmp(newsect->name, ".text")) {
+      obj_textsec(abfd)= newsect;
+      return true;
+    }
+
+    if (obj_datasec(abfd) == NULL && !strcmp(newsect->name, ".data")) {
+      obj_datasec(abfd) = newsect;
+      return true;
+    }
+
+    if (obj_bsssec(abfd) == NULL && !strcmp(newsect->name, ".bss")) {
+      obj_bsssec(abfd) = newsect;
+      return true;
+    }
+  }
+
+#if 0				/* FIXME -- this is temporary for steve */
+  bfd_error = invalid_operation;
+
+  return false;
+#endif
+
+  /* We allow more than three sections internally */
+  return true;
+}
+
+boolean
+sunos4_set_section_contents (abfd, section, location, offset, count)
+     bfd *abfd;
+     sec_ptr section;
+     unsigned char *location;
+     file_ptr offset;
+      int count;
+{
+  if (abfd->output_has_begun == false)
+    {				/* set by bfd.c handler */
+      if ((obj_textsec (abfd) == NULL) || (obj_datasec (abfd) == NULL)
+	  
+	  /*||
+	    (obj_textsec (abfd)->size == 0) || (obj_datasec (abfd)->size=
+	    0)*/
+	  ) 
+	{
+	  bfd_error = invalid_operation;
+	  return false;
+	}
+
+
+#if 0
+      if (abfd->flags & D_PAGED)
+	{
+	  obj_textsec (abfd)->filepos = sizeof(struct exec);
+	  obj_datasec(abfd)->filepos =  obj_textsec (abfd)->size;
+	}
+      else 
+#endif
+{
+	obj_textsec (abfd)->filepos = sizeof(struct exec);
+	obj_datasec(abfd)->filepos = obj_textsec(abfd)->filepos  + obj_textsec (abfd)->size;
+
+      }
+    }
+  /* regardless, once we know what we're doing, we might as well get going */
+
+  bfd_seek (abfd, section->filepos + offset, SEEK_SET);
+
+  if (count) {
+    return (bfd_write ((void *)location, 1, count, abfd) == count) ? true : false;
+  }
+  return false;
+}
+boolean
+sunos4_get_section_contents (abfd, section, location, offset, count)
+     bfd *abfd;
+     sec_ptr section;
+     void  *location;
+     file_ptr offset;
+     int count;
+{
+  if (count) {
+    if (offset >= section->size) return false;
+
+    bfd_seek (abfd, section->filepos + offset, SEEK_SET);
+
+    return (bfd_read (location, 1, count, abfd) == count) ? true:false;
+  }
+  else return true;
+}
+
+
+/* Classify stabs symbols */
+
+
+#define sym_in_text_section(sym) \
+     (((sym)->n_type  & (N_ABS | N_TEXT | N_DATA | N_BSS))== N_TEXT)
+
+#define sym_in_data_section(sym) \
+     (((sym)->n_type  & (N_ABS | N_TEXT | N_DATA | N_BSS))== N_DATA)
+
+#define sym_in_bss_section(sym) \
+     (((sym)->n_type  & (N_ABS | N_TEXT | N_DATA | N_BSS))== N_BSS)
+
+/* Symbol is undefined if type is N_UNDF|N_EXT and if it has
+   zero in the "value" field.  Nonzeroes there are fortrancommon
+   symbols.  */
+#define sym_is_undefined(sym) \
+        ((sym)->n_type == (N_UNDF | N_EXT) && (sym)->n_value == 0)
+
+/* Symbol is a global definition if N_EXT is on and if it has
+   a nonzero type field.  */
+#define sym_is_global_defn(sym) \
+        (((sym)->n_type & N_EXT) && (sym)->n_type & N_TYPE)
+
+/* Symbol is debugger info if any bits outside N_TYPE or N_EXT
+   are on.  */
+#define sym_is_debugger_info(sym) \
+        ((sym)->n_type & ~(N_EXT | N_TYPE))
+
+#define sym_is_fortrancommon(sym)       \
+        (((sym)->n_type == (N_EXT)) && (sym)->n_value != 0)
+
+/* Symbol is absolute if it has N_ABS set */
+#define sym_is_absolute(sym) \
+ 	       (((sym)->n_type  & N_TYPE)== N_ABS)
+
+
+#define sym_is_indirect(sym) \
+	       (((sym)->n_type  & N_ABS)== N_ABS)
+
+/* Only in their own functions for ease of debugging; when sym flags have
+   stabilised these should be inlined into their (single) caller */
+
+static void
+translate_from_native_sym_flags (sym_pointer, cache_ptr, abfd)
+     struct nlist *sym_pointer;
+     aout_symbol_type *cache_ptr;
+     bfd *abfd;
+{
+  switch (cache_ptr->type & N_TYPE) {
+  case N_SETA:
+  case N_SETT:
+  case N_SETD:
+  case N_SETB:
+    {
+      asection *section = bfd_make_section(abfd,
+					   cache_ptr->symbol.name);
+      arelent_chain *reloc = (arelent_chain *)malloc(sizeof(arelent_chain));
+
+      switch ( (cache_ptr->type  & N_TYPE) ) {
+      case N_SETA:
+	reloc->relent.section =  (asection *)NULL;
+	cache_ptr->symbol.section = (asection *)NULL;
+	break;
+      case N_SETT:
+	reloc->relent.section = (asection *)obj_textsec(abfd);
+	cache_ptr->symbol.value -= reloc->relent.section->vma;
+	break;
+      case N_SETD:
+	reloc->relent.section = (asection *)obj_datasec(abfd);
+	cache_ptr->symbol.value -= reloc->relent.section->vma;
+	break;
+      case N_SETB:
+	reloc->relent.section = (asection *)obj_bsssec(abfd);
+	cache_ptr->symbol.value -= reloc->relent.section->vma;
+	break;
+      }
+      cache_ptr->symbol.section = reloc->relent.section;
+      reloc->relent.addend = cache_ptr->symbol.value ;
+      /* 
+	 We modify the symbol to belong to a section depending upon the
+	 name of the symbol - probably __CTOR__ or __DTOR__ but we don't
+	 really care, and add to the size of the section to contain a
+	 pointer to the symbol. Build a reloc entry to relocate to this
+	 symbol attached to this section.
+	 */
+
+
+      section->flags = SEC_CONSTRUCTOR;
+      section->reloc_count++;
+      section->alignment_power = 2;
+      reloc->relent.sym_ptr_ptr = (asymbol **)NULL;
+      reloc->next = section->constructor_chain;
+      section->constructor_chain = reloc;
+      reloc->relent.address = section->size;
+      section->size += sizeof(int *);
+
+      reloc->relent.howto = howto_table +CTOR_TABLE_RELOC_IDX;
+      cache_ptr->symbol.flags |=  BSF_DEBUGGING ;
+      }
+    break;
+  default:
+
+    if (sym_is_debugger_info (sym_pointer)) {
+      cache_ptr->symbol.flags = BSF_DEBUGGING ;
+      /* Work out the section correct for this symbol */
+      switch (sym_pointer->n_type & N_TYPE) 
+	{
+	case N_TEXT:
+	case N_FN:
+	  cache_ptr->symbol.section = obj_textsec (abfd);
+	  cache_ptr->symbol.value -= obj_textsec(abfd)->vma;
+	  break;
+	case N_DATA:
+	  cache_ptr->symbol.value  -= obj_datasec(abfd)->vma;
+	  cache_ptr->symbol.section = obj_datasec (abfd);
+	  break;
+	case N_BSS :
+	  cache_ptr->symbol.section = obj_bsssec (abfd);
+	  cache_ptr->symbol.value -= obj_bsssec(abfd)->vma;
+	  break;
+	case N_ABS:
+	default:
+	  cache_ptr->symbol.section = 0;
+	  break;
+	}
+    }
+    else {
+      if (sym_is_fortrancommon (sym_pointer))
+	{
+	  cache_ptr->symbol.flags = BSF_FORT_COMM;
+	  cache_ptr->symbol.section = (asection *)NULL;
+	}
+      else {
+	if (sym_is_undefined (sym_pointer)) {
+	  cache_ptr->symbol.flags = BSF_UNDEFINED;
+	}
+	else if (sym_is_global_defn (sym_pointer)) {
+	  cache_ptr->symbol.flags = BSF_GLOBAL | BSF_EXPORT;
+	}
+
+	else if (sym_is_absolute (sym_pointer)) {
+	  cache_ptr->symbol.flags = BSF_ABSOLUTE;
+	}
+	else {
+	  cache_ptr->symbol.flags = BSF_LOCAL;
+	}
+
+	/* In a.out, the value of a symbol is always relative to the 
+	 * start of the file, if this is a data symbol we'll subtract
+	 * the size of the text section to get the section relative
+	 * value. If this is a bss symbol (which would be strange)
+	 * we'll subtract the size of the previous two sections
+	 * to find the section relative address.
+	 */
+
+	if (sym_in_text_section (sym_pointer))   {
+	  cache_ptr->symbol.value -= obj_textsec(abfd)->vma;
+	  cache_ptr->symbol.section = obj_textsec (abfd);
+	}
+	else if (sym_in_data_section (sym_pointer)){
+	  cache_ptr->symbol.value -= obj_datasec(abfd)->vma;
+	  cache_ptr->symbol.section = obj_datasec (abfd);
+	}
+	else if (sym_in_bss_section(sym_pointer)) {
+	  cache_ptr->symbol.section = obj_bsssec (abfd);
+	  cache_ptr->symbol.value -= obj_bsssec(abfd)->vma;
+	}
+	else {
+	  cache_ptr->symbol.section = (asection *)NULL;
+	  cache_ptr->symbol.flags |= BSF_ABSOLUTE;
+	}
+      }
+    }
+  }
+}
+void
+translate_to_native_sym_flags (sym_pointer, cache_ptr_g, abfd)
+     struct nlist *sym_pointer;
+     generic_symbol_type *cache_ptr_g;
+     bfd *abfd;
+{
+  asymbol *cache_ptr = (asymbol *)cache_ptr_g;
+
+  /* FIXME check for wrigin bss */
+  if (bfd_get_section(cache_ptr)) {
+    if (bfd_get_output_section(cache_ptr) == obj_bsssec (abfd)) {
+      sym_pointer->n_type |= N_BSS;
+    }
+    else if (bfd_get_output_section(cache_ptr) == obj_datasec (abfd)) {
+      sym_pointer->n_type |= N_DATA;
+    }
+    else  if (bfd_get_output_section(cache_ptr) == obj_textsec (abfd)) {
+      sym_pointer->n_type |= N_TEXT;
+    }
+    else {
+      BFD_ASSERT(0);
+    }
+    /* Turn the symbol from section relative to absolute again */
+    sym_pointer->n_value +=
+      cache_ptr->section->output_section->vma 
+	+ cache_ptr->section->output_offset ;
+  }
+  else {
+    sym_pointer->n_type |= N_ABS;
+  }
+
+  if (cache_ptr->flags & (BSF_FORT_COMM | BSF_UNDEFINED)) {
+    sym_pointer->n_type = (N_UNDF | N_EXT);
+    return;
+  }
+
+  if (cache_ptr->flags & BSF_ABSOLUTE) {
+    sym_pointer->n_type |= N_ABS;
+  }
+
+  if (cache_ptr->flags & (BSF_GLOBAL | BSF_EXPORT)) {
+    sym_pointer->n_type |= N_EXT;
+  }
+  if (cache_ptr->flags & BSF_DEBUGGING) {
+    sym_pointer->n_type = ((aout_symbol_type *)cache_ptr)->type;
+  }
+  
+}
+
+/* Native-level interface to symbols. */
+
+/* We read the symbols into a buffer, which is discarded when this
+   function exits.  We read the strings into a buffer large enough to
+   hold them all plus all the cached symbol entries. */
+
+asymbol *
+sunos4_make_empty_symbol (abfd)
+bfd *abfd;
+{
+  aout_symbol_type  *new =
+    (aout_symbol_type *)zalloc (sizeof (aout_symbol_type));
+  new->symbol.the_bfd = abfd;
+
+  return &new->symbol;
+}
+
+boolean
+sunos4_slurp_symbol_table (abfd)
+     bfd *abfd;
+{
+  unsigned int symbol_count;
+  size_t symbol_size;
+  size_t string_size;
+  struct nlist *syms;
+  char *strings;
+  aout_symbol_type *cached;
+
+  /* If there's no work to be done, don't do any */
+  if (obj_aout_symbols (abfd) != (aout_symbol_type *)NULL) return true;
+  symbol_size = exec_hdr(abfd)->a_syms;
+  if (symbol_size == 0) {
+    bfd_error = no_symbols;
+    return false;
+  }
+
+  bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET);
+  if (bfd_read ((void *)&string_size, 4, 1, abfd) != 4)
+    return false;
+  string_size = bfd_h_getlong (abfd, (unsigned char *)&string_size);
+
+  symbol_count = symbol_size / sizeof (struct nlist);
+
+  /* Malloc (should alloca) space for native symbols, and
+     malloc space for string table and symbol cache. */
+
+  syms = (struct nlist *) zalloc (symbol_size);
+  if (syms == NULL) {
+    bfd_error = no_memory;
+    return false;
+  }
+
+  cached = (aout_symbol_type *) zalloc ((size_t)(string_size + 1 +
+                               (symbol_count * sizeof (aout_symbol_type))));
+  if (cached == NULL) {
+    bfd_error = no_memory;
+    free ((void *)syms);
+    return false;
+  }
+
+  strings = ((char *) cached) + (symbol_count * sizeof (aout_symbol_type));
+
+  bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET);
+  if (bfd_read ((void *)syms, 1, symbol_size, abfd) != symbol_size) {
+  bailout:
+    free ((void *)cached);
+    free ((void*)syms);
+    return false;
+  }
+
+  bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET);
+  if (bfd_read ((void *)strings, 1, string_size, abfd) != string_size) {
+    goto bailout;
+  }
+
+  /* OK, now walk the new symtable, cacheing symbol properties */
+  {
+    register struct nlist *sym_pointer;
+    register struct nlist *sym_end = syms + symbol_count;
+    register aout_symbol_type *cache_ptr = cached;
+
+    if (bfd_header_twiddle_required (abfd) == true) {
+      /* run through the table and byte swap if needed */
+      for (sym_pointer = syms; sym_pointer < sym_end;  sym_pointer++) {
+        sym_pointer->n_un.n_strx =
+	  bfd_h_get_x (abfd, &sym_pointer->n_un.n_strx);
+        sym_pointer->n_desc =
+	  bfd_h_get_x (abfd, &sym_pointer->n_desc);
+        sym_pointer->n_value =
+	  bfd_h_get_x (abfd, &sym_pointer->n_value);
+	sym_pointer->n_other = (char)
+	  bfd_h_get_x(abfd, &sym_pointer->n_other);
+	sym_pointer->n_type = (char)
+	  bfd_h_get_x(abfd, &sym_pointer->n_type);
+
+      }
+    }
+    /* Run through table and copy values */
+    for (sym_pointer = syms, cache_ptr = cached;
+	 sym_pointer < sym_end; sym_pointer++, cache_ptr++) 
+      {
+	cache_ptr->symbol.the_bfd = abfd;
+	if (sym_pointer->n_un.n_strx)
+	  cache_ptr->symbol.name = sym_pointer->n_un.n_strx + strings;
+	else
+	  cache_ptr->symbol.name = (char *)NULL;
+	cache_ptr->symbol.value = sym_pointer->n_value;
+	cache_ptr->desc = sym_pointer->n_desc;
+	cache_ptr->other = sym_pointer->n_other;
+	cache_ptr->type = sym_pointer->n_type;
+	cache_ptr->symbol.udata = 0;
+	translate_from_native_sym_flags (sym_pointer, cache_ptr, abfd);
+
+      }
+  }
+
+  obj_aout_symbols (abfd) =  cached;
+  bfd_get_symcount (abfd) = symbol_count;
+  free ((void *)syms);
+
+  return true;
+}
+
+
+void
+sunos4_write_syms (abfd)
+     bfd *abfd;
+{
+  unsigned int count ;
+  asymbol **generic = bfd_get_outsymbols (abfd);
+
+  unsigned int stindex = sizeof(stindex); /* initial string length */
+
+  for (count = 0; count < bfd_get_symcount (abfd); count++) {
+    asymbol *g = generic[count];
+    struct nlist nsp;
+
+    if (g->name) {
+      unsigned int length = strlen(g->name) +1;
+      bfd_h_putlong  (abfd, stindex, (unsigned char *)&nsp.n_un.n_strx);
+      stindex += length;
+    }
+    else {
+      bfd_h_putlong  (abfd, 0, (unsigned char *)&nsp.n_un.n_strx);
+    }
+
+    if (g->the_bfd->xvec->flavour == abfd->xvec->flavour) 
+      {
+	nsp.n_desc = aout_symbol( g)->desc;
+	nsp.n_other = aout_symbol(g)->other;
+	nsp.n_type = aout_symbol(g)->type;
+      }
+    else
+      {
+	nsp.n_desc = 0;
+	nsp.n_other = 0;
+	nsp.n_type = 0;
+      }
+
+
+    nsp.n_value = g->value;
+    translate_to_native_sym_flags (&nsp, (generic_symbol_type *)g, abfd);
+
+
+    bfd_h_putshort (abfd, nsp.n_desc, (unsigned char *)&nsp.n_desc);
+    bfd_h_putlong  (abfd, nsp.n_value, (unsigned char *)&nsp.n_value);
+    bfd_write((void *)&nsp,1, sizeof(nsp), abfd);
+  }
+
+
+  /* Now output the strings.  Be sure to put string length into correct
+   * byte ordering before writing it.
+   */
+  bfd_h_putlong  (abfd, stindex, (unsigned char *)&stindex);
+
+  bfd_write((void *)&stindex, 1, sizeof(stindex), abfd);
+  
+  generic = bfd_get_outsymbols(abfd);
+  for (count = 0; count < bfd_get_symcount(abfd); count++) 
+    {
+      asymbol *g = *(generic++);
+
+      if (g->name != (char *)NULL) 
+	{
+	  size_t length = strlen(g->name)+1;
+	  bfd_write((void *)g->name, 1, length, abfd);
+	}
+      if ((g->flags & BSF_FAKE)==0) {
+	g->name = itos(count);	/* smash the generic symbol */
+      }
+    }
+}
+
+
+void
+sunos4_reclaim_symbol_table (abfd)
+     bfd *abfd;
+{
+  asection *section;
+
+  if (!bfd_get_symcount (abfd)) return;
+
+  for (section = abfd->sections;
+       section != (asection *) NULL;
+       section = section->next)
+    if (section->relocation) {
+      free ((void *)section->relocation);
+      section->relocation = NULL;
+      section->reloc_count = 0;
+    }
+
+  bfd_get_symcount (abfd) = 0;
+  free ((void *)obj_aout_symbols (abfd));
+  obj_aout_symbols (abfd) = (aout_symbol_type *)NULL;
+}
+
+unsigned int
+sunos4_get_symtab_upper_bound (abfd)
+     bfd *abfd;
+{
+  if (!sunos4_slurp_symbol_table (abfd)) return 0;
+
+  return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *));
+}
+
+unsigned int
+sunos4_get_symtab (abfd, location)
+     bfd *abfd;
+     asymbol **location;
+{
+  unsigned int counter = 0;
+  aout_symbol_type *symbase;
+
+  if (!sunos4_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);
+}
+
+
+/* Obsolete procedural interface; better to look at the cache directly */
+
+/* User should have checked the file flags; perhaps we should return
+   BFD_NO_MORE_SYMBOLS if there are none? */
+
+int
+sunos4_get_symcount_upper_bound (abfd)
+     bfd *abfd;
+{
+  /* In case we're doing an output file or something...?  */
+  if (bfd_get_symcount (abfd)) return bfd_get_symcount (abfd);
+
+  return (exec_hdr (abfd)->a_syms) / (sizeof (struct nlist));
+}
+
+symindex
+sunos4_get_first_symbol (ignore_abfd)
+     bfd * ignore_abfd;
+{
+  return 0;
+}
+
+symindex
+sunos4_get_next_symbol (abfd, oidx)
+     bfd *abfd;
+     symindex oidx;
+{
+  if (oidx == BFD_NO_MORE_SYMBOLS) return BFD_NO_MORE_SYMBOLS;
+  return ++oidx >= bfd_get_symcount (abfd) ? BFD_NO_MORE_SYMBOLS : oidx;
+}
+
+char *
+sunos4_symbol_name (abfd, idx)
+     bfd *abfd;
+     symindex idx;
+{
+  return (obj_aout_symbols (abfd) + idx)->symbol.name;
+}
+
+long
+sunos4_symbol_value (abfd, idx)
+     bfd *abfd;
+     symindex idx;
+{
+  return (obj_aout_symbols (abfd) + idx)->symbol.value;
+}
+
+symclass
+sunos4_classify_symbol (abfd, idx)
+     bfd *abfd;
+     symindex idx;
+{
+  aout_symbol_type *sym = obj_aout_symbols (abfd) + idx;
+
+  if ((sym->symbol.flags & BSF_FORT_COMM) != 0)   return bfd_symclass_fcommon;
+  if ((sym->symbol.flags & BSF_GLOBAL) != 0)    return bfd_symclass_global;
+  if ((sym->symbol.flags & BSF_DEBUGGING) != 0)  return bfd_symclass_debugger;
+  if ((sym->symbol.flags & BSF_UNDEFINED) != 0) return bfd_symclass_undefined;
+
+  return bfd_symclass_unknown;
+}
+
+boolean
+sunos4_symbol_hasclass (abfd, idx, class)
+     bfd *abfd;
+     symindex idx;
+     symclass class;
+{
+  aout_symbol_type *sym = obj_aout_symbols (abfd) + idx;
+  switch (class) {
+  case bfd_symclass_fcommon:
+    return (sym->symbol.flags & BSF_FORT_COMM) ? true :false;
+  case bfd_symclass_global:
+    return (sym->symbol.flags & BSF_GLOBAL) ? true:false;
+  case bfd_symclass_debugger:
+    return (sym->symbol.flags & BSF_DEBUGGING) ? true:false;;
+  case bfd_symclass_undefined:
+    return (sym->symbol.flags & BSF_UNDEFINED) ? true:false;;
+  default: return false;
+  }
+}
+
+/** Some reloc hackery */
+
+
+boolean
+sunos4_slurp_reloc_table (abfd, asect, symbols)
+     bfd *abfd;
+     sec_ptr asect;
+     asymbol **symbols;
+{
+  unsigned int count;
+  size_t reloc_size;
+  struct reloc_info_extended *relocs;
+  arelent *reloc_cache;
+
+  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);
+  count = reloc_size / sizeof (struct reloc_info_extended);
+
+  relocs = (struct reloc_info_extended *) malloc (reloc_size);
+  if (!relocs) {
+    bfd_error = no_memory;
+    return false;
+  }
+  reloc_cache = (arelent *) zalloc ((size_t)(count * sizeof (arelent)));
+  if (reloc_cache == (arelent *)NULL) {
+    free ((void *)relocs);
+    bfd_error = no_memory;
+    return false;
+  }
+
+  if (bfd_read ((void*) relocs, 1, reloc_size, abfd) != reloc_size) {
+    bfd_error = system_call_error;
+    free (reloc_cache);
+    free (relocs);
+    return false;
+  }
+
+  {
+    register struct reloc_info_extended *rptr = relocs;
+    unsigned int counter = 0;
+    arelent *cache_ptr = reloc_cache;
+
+    for (; counter < count; counter++, rptr++, cache_ptr++) {
+      /* john's old swap_reloc was a hell of a lot hairier... */
+      /* FIXME, it needs to be!!! */
+      rptr->r_address = bfd_h_getlong (abfd, &rptr->r_address);
+      /* FIXME NOW!
+       *  The following can't be done because r_index is a bit field:
+       *
+       * rptr->r_index   = bfd_h_getlong (abfd, &rptr->r_index);
+       */
+      rptr->r_addend  = bfd_h_getlong (abfd, &rptr->r_addend);
+      if (rptr->r_extern) {
+	/* If this bit is set then the r_index is a index into the symbol table
+	 * if the bit is not set then r_index contains a section map.
+	 * We either fill in the sym entry with a pointer to the symbol,
+	 * or point to the correct section
+	 */
+	
+	cache_ptr->sym_ptr_ptr = symbols + rptr->r_index;
+	cache_ptr->addend =  rptr->r_addend;
+	cache_ptr->section = (asection *)NULL;
+      }
+      else 
+	{
+	  /* Remember that in a.out symbols are relative to the
+	 beginning of the file rather than sections ? (look in
+	 translate_from_native_sym_flags) The reloc entry addend
+	 has added to it the offset into the  file of the data, so
+	 subtract the base to make the reloc section relative */
+
+	  cache_ptr->sym_ptr_ptr = (asymbol **)NULL;
+	  switch (rptr->r_index) {
+	  case N_TEXT:
+	  case N_TEXT | N_EXT:
+	    cache_ptr->section = obj_textsec(abfd);
+	    cache_ptr->addend = rptr->r_addend -  obj_textsec(abfd)->vma  ;
+	    break;
+	  case N_DATA:
+	  case N_DATA | N_EXT:
+	    cache_ptr->section = obj_datasec(abfd);
+	    cache_ptr->addend = rptr->r_addend -  obj_datasec(abfd)->vma  ;
+	    break;
+	  case N_BSS:
+	  case N_BSS | N_EXT:
+	    cache_ptr->section = obj_bsssec(abfd);
+	    cache_ptr->addend = rptr->r_addend - obj_bsssec(abfd)->vma;
+	    break;
+	  case N_ABS:
+	  case N_ABS | N_EXT:
+	    BFD_ASSERT(1);
+	    break;
+	  default:
+	    BFD_ASSERT(1);
+	    break;
+	  }
+	
+	}
+
+      cache_ptr->address = rptr->r_address;
+      cache_ptr->howto =  howto_table + (unsigned int)( rptr->r_type);
+    }
+  }
+
+  free (relocs);
+  asect->relocation = reloc_cache;
+  asect->reloc_count = count;
+  return true;
+}
+
+static boolean
+sunos4_squirt_out_relocs (abfd, section)
+     bfd *abfd;
+     asection *section;
+{
+  arelent **generic;
+
+  unsigned int count = section->reloc_count;
+  struct reloc_info_extended *native, *natptr;
+  size_t natsize = count * sizeof (struct reloc_info_extended);
+
+  if (count == 0) return true;
+  generic   = section->orelocation;
+  native = ((struct reloc_info_extended *) zalloc (natsize));
+  if (!native) {
+    bfd_error = no_memory;
+    return false;
+  }
+
+  for (natptr = native; count != 0; --count, ++natptr, ++generic) 
+    {
+      arelent *g = *generic;
+
+      natptr->r_address = g->address;
+      /* Find a type in the output format which matches the input howto - 
+       * at the moment we assume input format == output format FIXME!!
+       */
+      natptr->r_type = (enum reloc_type) g->howto->type;
+      /* name clobbered by sunos4_write_syms to be symbol index*/
+
+      if (g->sym_ptr_ptr != (asymbol **)NULL) 
+	{
+	  if ((*(g->sym_ptr_ptr))->section) {
+	    /* replace the section offset into the addent */
+	    g->addend += (*(g->sym_ptr_ptr))->section->vma;
+	  }
+
+	  natptr->r_index = stoi((*(g->sym_ptr_ptr))->name);
+	BFD_ASSERT(natptr->r_index < 0xfff);
+	  natptr->r_extern = 1;
+	  natptr->r_addend = g->addend;
+	}
+      else {
+	natptr->r_extern = 0;
+	if (g->section == (asection *)NULL) {
+	  BFD_ASSERT(0);
+	  natptr->r_index = N_ABS | N_EXT;
+	  natptr->r_addend = g->addend;
+	}
+	else  if(g->section->output_section == obj_textsec(abfd)) {
+	  natptr->r_index = N_TEXT | N_EXT;
+	  natptr->r_addend = g->addend + obj_textsec(abfd)->vma;
+	}
+	else if (g->section->output_section == obj_datasec(abfd)) {
+	  natptr->r_index = N_DATA | N_EXT;
+	  natptr->r_addend = g->addend + obj_datasec(abfd)->vma;
+	}
+	else if (g->section->output_section == obj_bsssec(abfd)) {
+	  natptr->r_index = N_BSS | N_EXT ;
+	  natptr->r_addend = g->addend + obj_bsssec(abfd)->vma;
+
+	}
+	else {
+	  BFD_ASSERT(0);
+	}
+      }
+  
+      if ( bfd_header_twiddle_required(abfd) ){
+        bfd_h_putlong ( abfd, natptr->r_address, &natptr->r_address );
+
+        /* FIXME -- NOW!
+	 *
+         * I came through here as part of my campaign to make compile-time
+         * definition of host and target byte orders unnecessary. The new
+	 * code won't even compile because but r_index is a bit field.
+	 * But the simple-minded byte swap that was here before wasn't going
+	 * to work on a bit field anyway.
+	 *
+         * The old code used to be #ifdef'd on 
+         *		TARGET_BYTE_ORDER_BIG_P != HOST_BYTE_ORDER_BIG_P
+         * Apparently, it was never tested in such a condition: the
+         * macro invocations here (of swapoutlong) had the wrong number
+         * of arguments and would never have compiled.
+         * 			Chris
+        bfd_h_putlong ( abfd, natptr->r_index, &natptr->r_index );
+         */
+
+        bfd_h_putlong ( abfd, natptr->r_addend, &natptr->r_addend );
+      }
+
+    }
+
+  if ( bfd_write ((void *) native, 1, natsize, abfd) != natsize) {
+    free(native);
+    return false;
+  }
+  free (native);
+
+  return true;
+}
+
+/* This is stupid.  This function should be a boolean predicate */
+unsigned int
+sunos4_canonicalize_reloc (abfd, section, relptr, symbols)
+     bfd *abfd;
+     sec_ptr section;
+     arelent **relptr;
+     asymbol **symbols;
+{
+  arelent *tblptr = section->relocation;
+  unsigned int count;
+
+  if (!(tblptr || sunos4_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;
+}
+
+unsigned int
+sunos4_get_reloc_upper_bound (abfd, asect)
+     bfd *abfd;
+     sec_ptr asect;
+{
+  if (bfd_get_format (abfd) != bfd_object) {
+    bfd_error = invalid_operation;
+    return 0;
+  }
+  if (asect->flags & SEC_CONSTRUCTOR) {
+    return (sizeof (arelent *) * (asect->reloc_count+1));
+  }
+
+  if (asect == obj_datasec (abfd))
+    return (sizeof (arelent *) *
+            ((exec_hdr(abfd)->a_drsize / sizeof (struct reloc_info_extended))
+             +1));
+
+  if (asect == obj_textsec (abfd))
+    return (sizeof (arelent *) *
+            ((exec_hdr(abfd)->a_trsize / sizeof (struct reloc_info_extended))
+             +1));
+
+  bfd_error = invalid_operation;
+  return 0;
+}
+
+void
+sunos4_reclaim_reloc (ignore_abfd, section)
+     bfd *ignore_abfd;
+     sec_ptr section;
+{
+  if (section->relocation) {
+    free (section->relocation);
+    section->relocation = NULL;
+    section->reloc_count = 0;
+    }
+}
+
+
+alent *
+sunos4_get_lineno(ignore_abfd, ignore_symbol)
+bfd *ignore_abfd;
+generic_symbol_type *ignore_symbol;
+{
+return (alent *)NULL;
+}
+
+void 
+sunos4_print_symbol(ignore_abfd, file,  symbol, how)
+bfd *ignore_abfd;
+FILE *file;
+asymbol *symbol;
+bfd_print_symbol_enum_type how;
+{
+  switch (how) {
+  case bfd_print_symbol_name_enum:
+    fprintf(file,"%s", symbol->name);
+    break;
+  case bfd_print_symbol_type_enum:
+    fprintf(file,"%4x %2x %2x",(unsigned)(aout_symbol(symbol)->desc & 0xffff),
+	    (unsigned)(   aout_symbol(symbol)->other  & 0xff),
+	    (unsigned)(aout_symbol(symbol)->type));
+    break;
+  case bfd_print_symbol_all_enum:
+    {
+      char *section_name = symbol->section == (asection *)NULL ?
+	"*abs" : symbol->section->name;
+
+      bfd_print_symbol_vandf((void *)file,symbol);
+
+      fprintf(file," %-5s %04x %02x %02x %s",
+	      section_name,
+	      (unsigned)(aout_symbol(symbol)->desc & 0xffff),
+	      (unsigned)(aout_symbol(symbol)->other  & 0xff),
+	      (unsigned)(aout_symbol(symbol)->type  & 0xff),
+	      symbol->name);
+    }
+    break;
+  }
+}
+/* Once we know all the stuff that could be consed, we know how to clean
+   it up.  So why don't we? */
+
+boolean
+sunos4_close_and_cleanup (abfd)
+     bfd *abfd;
+{
+  if (!bfd_read_p (abfd))
+    switch (abfd->format) {
+    case bfd_archive:
+      if (!_bfd_write_archive_contents (abfd)) return false; break;
+    case bfd_object:
+      if (!sunos4_write_object_contents (abfd))  return false; break;
+    default: bfd_error = invalid_operation; return false;
+    }
+
+#define cleaner(ptr) if (abfd->ptr) free (abfd->ptr)
+  cleaner (tdata);
+
+  if (abfd->my_archive)
+    cleaner (filename);
+
+#undef cleaner
+  return true;
+}
+
+/* 
+ provided a bfd, a section and an offset into the section, calculate
+ and return the name of the source file and the line nearest to the
+ wanted location.
+*/
+ 
+boolean
+sunos4_find_nearest_line(abfd,
+			 section,
+			 symbols,
+			 offset,
+			 filename_ptr,
+			 functionname_ptr,
+			 line_ptr)
+bfd *abfd;
+asection *section;
+asymbol **symbols;
+bfd_vma offset;
+char **filename_ptr;
+char **functionname_ptr;
+unsigned int *line_ptr;
+{
+  /* Run down the file looking for the filename, function and linenumber */
+  asymbol **p;
+  static  char buffer[100];
+  bfd_vma high_line_vma = ~0;
+  bfd_vma low_func_vma = 0;
+  asymbol *func = 0;
+  *filename_ptr = abfd->filename;
+  *functionname_ptr = 0;
+  *line_ptr = 0;
+  if (symbols != (asymbol **)NULL) {
+    for (p = symbols; *p; p++) {
+      aout_symbol_type  *q = (aout_symbol_type *)(*p);
+      switch (q->type){
+      case N_SO:
+	*filename_ptr = q->symbol.name;
+	if (obj_textsec(abfd) != section) {
+	  return true;
+	}
+	break;
+      case N_SLINE:
+
+      case N_DSLINE:
+      case N_BSLINE:
+	/* We'll keep this if it resolves nearer than the one we have already */
+	if (q->symbol.value >= offset &&
+	    q->symbol.value < high_line_vma) {
+	  *line_ptr = q->desc;
+	  high_line_vma = q->symbol.value;
+	}
+	break;
+      case N_FUN:
+	{
+	  /* We'll keep this if it is nearer than the one we have already */
+	  if (q->symbol.value >= low_func_vma &&
+	      q->symbol.value <= offset) {
+	    low_func_vma = q->symbol.value;
+	    func = (asymbol *)q;
+	  }
+	  if (*line_ptr && func) {
+	    char *function = func->name;
+	    char *p;
+	    strncpy(buffer, function, sizeof(buffer)-1);
+	    buffer[sizeof(buffer)-1] = 0;
+	    /* Have to remove : stuff */
+	    p = strchr(buffer,':');
+	    if (p != NULL) {*p = NULL; }
+	    *functionname_ptr = buffer;
+	    return true;
+
+	  }
+	}
+	break;
+      }
+    }
+  }
+  
+  return true;
+
+}
+
+bfd_target aoutvec =
+{
+  "a.out-generic-big",		/* name */
+  bfd_target_aout_flavour_enum,
+  true,				/* target byte order */
+  true,				/* target headers byte order */
+  (HAS_RELOC | EXEC_P |		/* object flags */
+   HAS_LINENO | HAS_DEBUG |
+   HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
+  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
+  0,				/* valid reloc types */
+  ' ',				/* ar_pad_char */
+  16,				/* ar_max_namelen */
+  sunos4_close_and_cleanup,	/* _close_and_cleanup */
+  sunos4_set_section_contents,	/* bfd_set_section_contents */
+  sunos4_get_section_contents,	/* bfd_get_section_contents */
+  sunos4_new_section_hook,	/* new_section_hook */
+  sunos4_core_file_failing_command, /* _core_file_failing_command */
+  sunos4_core_file_failing_signal, /* _core_file_failing_signal */
+  sunos4_core_file_matches_executable_p, /* _core_file_matches_ex...p */
+
+  bfd_slurp_bsd_armap,		/* bfd_slurp_armap */
+  bfd_true,			/* bfd_slurp_extended_name_table */
+  bfd_bsd_truncate_arname,	/* bfd_truncate_arname */
+
+  sunos4_get_symtab_upper_bound, /* get_symtab_upper_bound */
+  sunos4_get_symtab,		/* canonicalize_symtab */
+  sunos4_reclaim_symbol_table,	/* bfd_reclaim_symbol_table */
+  sunos4_get_reloc_upper_bound,	/* get_reloc_upper_bound */
+  sunos4_canonicalize_reloc,	/* bfd_canonicalize_reloc */
+  sunos4_reclaim_reloc,		/* bfd_reclaim_reloc */
+  sunos4_get_symcount_upper_bound, /* bfd_get_symcount_upper_bound */
+  sunos4_get_first_symbol,	/* bfd_get_first_symbol */
+  sunos4_get_next_symbol,	/* bfd_get_next_symbol */
+  sunos4_classify_symbol,	/* bfd_classify_symbol */
+  sunos4_symbol_hasclass,	/* bfd_symbol_hasclass */
+  sunos4_symbol_name,		/* bfd_symbol_name */
+  sunos4_symbol_value,		/* bfd_symbol_value */
+
+  _do_getblong, _do_putblong, _do_getbshort, _do_putbshort, /* data */
+  _do_getblong, _do_putblong, _do_getbshort, _do_putbshort, /* hdrs */
+
+  {_bfd_dummy_target, sunos4_object_p, /* bfd_check_format */
+     bfd_generic_archive_p, sunos4_core_file_p},
+  {bfd_false, sunos4_mkobject,	/* bfd_zxset_format */
+     _bfd_generic_mkarchive, bfd_false},
+  sunos4_make_empty_symbol,
+  sunos4_print_symbol,
+  sunos4_get_lineno,
+  sunos4_set_arch_mach,
+  bsd_write_armap,
+  bfd_generic_openr_next_archived_file,
+  sunos4_find_nearest_line,	/* bfd_find_nearest_line */
+  bfd_generic_stat_arch_elt /* bfd_stat_arch_elt */
+  };
+