Add PDP-11 support

17 files changed, 5171 insertions, 20 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index ec272d3..018d7e8 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,24 @@
+2001-02-18  lars brinkhoff  <lars@nocrew.org>
+
+	* Makefile.am: Add PDP-11 a.out target.
+	* config.bfd: Likewise.
+	* configure.in: Likewise.
+	* targets.c: Likewise.
+	* archures.c: Likewise.
+	* bfd-in2.h: Likewise.  Add PDP-11 relocations.
+	* libbfd.h: Add PDP-11 relocations.
+	* reloc.c: Likewise.
+	* cpu-pdp11.c: New file.
+	* pdp11.c: New file.
+
+	* libaout.h (GET_WORD) [ARCH_SIZE==16]: Define.
+	(GET_SWORD) [ARCH_SIZE==16]: Likewise.
+	(GET_SWORD) [ARCH_SIZE==16]: Likewise.
+	(PUT_WORD) [ARCH_SIZE==16]: Likewise.
+	(GET_MAGIC): New macro.
+	(PUT_MAGIC): Likewise.
+	* aout-target.h (MY(object_p)): Use GET_MAGIC to read magic word.
+
 2001-02-18  Jim Kingdon  <jkingdon@engr.sgi.com>
 
 	* irix-core.c (irix_core_core_file_p): Set the architecture (GDB
diff --git a/bfd/Makefile.am b/bfd/Makefile.am
index 7183954..9446bc3 100644
--- a/bfd/Makefile.am
+++ b/bfd/Makefile.am
@@ -69,6 +69,7 @@ ALL_MACHINES = \
 	cpu-mcore.lo \
 	cpu-mips.lo \
 	cpu-ns32k.lo \
+	cpu-pdp11.lo \
 	cpu-pj.lo \
 	cpu-powerpc.lo \
 	cpu-rs6000.lo \
@@ -112,6 +113,7 @@ ALL_MACHINES_CFILES = \
 	cpu-mcore.c \
 	cpu-mips.c \
 	cpu-ns32k.c \
+	cpu-pdp11.c \
 	cpu-pj.c \
 	cpu-powerpc.c \
 	cpu-rs6000.c \
@@ -239,6 +241,7 @@ BFD32_BACKENDS = \
 	ns32knetbsd.lo \
 	oasys.lo \
 	pc532-mach.lo \
+	pdp11.lo \
 	pe-arm.lo \
 	pei-arm.lo \
 	pe-i386.lo \
@@ -377,6 +380,7 @@ BFD32_BACKENDS_CFILES = \
 	ns32knetbsd.c \
 	oasys.c \
 	pc532-mach.c \
+	pdp11.c \
 	pe-arm.c \
 	pei-arm.c \
 	pe-i386.c \
@@ -781,6 +785,7 @@ cpu-m10300.lo: cpu-m10300.c $(INCDIR)/filenames.h
 cpu-mcore.lo: cpu-mcore.c $(INCDIR)/filenames.h
 cpu-mips.lo: cpu-mips.c $(INCDIR)/filenames.h
 cpu-ns32k.lo: cpu-ns32k.c $(INCDIR)/filenames.h ns32k.h
+cpu-pdp11.lo: cpu-pdp11.c $(INCDIR)/filenames.h
 cpu-pj.lo: cpu-pj.c $(INCDIR)/filenames.h
 cpu-powerpc.lo: cpu-powerpc.c $(INCDIR)/filenames.h
 cpu-rs6000.lo: cpu-rs6000.c $(INCDIR)/filenames.h
@@ -1161,6 +1166,9 @@ oasys.lo: oasys.c $(INCDIR)/filenames.h $(INCDIR)/oasys.h \
 pc532-mach.lo: pc532-mach.c $(INCDIR)/filenames.h libaout.h \
   $(INCDIR)/bfdlink.h $(INCDIR)/aout/aout64.h aout-target.h \
   $(INCDIR)/aout/stab_gnu.h $(INCDIR)/aout/stab.def $(INCDIR)/aout/ar.h
+pdp11.lo: pdp11.c libaout.h $(INCDIR)/bfdlink.h \
+  aout-target.h $(INCDIR)/aout/aout64.h $(INCDIR)/aout/stab_gnu.h \
+  $(INCDIR)/aout/stab.def $(INCDIR)/aout/ar.h
 pe-arm.lo: pe-arm.c $(INCDIR)/filenames.h coff-arm.c \
   $(INCDIR)/coff/arm.h $(INCDIR)/coff/internal.h $(INCDIR)/coff/pe.h \
   libcoff.h $(INCDIR)/bfdlink.h coffcode.h peicode.h \
diff --git a/bfd/Makefile.in b/bfd/Makefile.in
index 90c79aa..37bf089 100644
--- a/bfd/Makefile.in
+++ b/bfd/Makefile.in
@@ -190,6 +190,7 @@ ALL_MACHINES = \
 	cpu-mcore.lo \
 	cpu-mips.lo \
 	cpu-ns32k.lo \
+	cpu-pdp11.lo \
 	cpu-pj.lo \
 	cpu-powerpc.lo \
 	cpu-rs6000.lo \
@@ -234,6 +235,7 @@ ALL_MACHINES_CFILES = \
 	cpu-mcore.c \
 	cpu-mips.c \
 	cpu-ns32k.c \
+	cpu-pdp11.c \
 	cpu-pj.c \
 	cpu-powerpc.c \
 	cpu-rs6000.c \
@@ -362,6 +364,7 @@ BFD32_BACKENDS = \
 	ns32knetbsd.lo \
 	oasys.lo \
 	pc532-mach.lo \
+	pdp11.lo \
 	pe-arm.lo \
 	pei-arm.lo \
 	pe-i386.lo \
@@ -501,6 +504,7 @@ BFD32_BACKENDS_CFILES = \
 	ns32knetbsd.c \
 	oasys.c \
 	pc532-mach.c \
+	pdp11.c \
 	pe-arm.c \
 	pei-arm.c \
 	pe-i386.c \
@@ -1320,6 +1324,7 @@ cpu-m10300.lo: cpu-m10300.c $(INCDIR)/filenames.h
 cpu-mcore.lo: cpu-mcore.c $(INCDIR)/filenames.h
 cpu-mips.lo: cpu-mips.c $(INCDIR)/filenames.h
 cpu-ns32k.lo: cpu-ns32k.c $(INCDIR)/filenames.h ns32k.h
+cpu-pdp11.lo: cpu-pdp11.c $(INCDIR)/filenames.h
 cpu-pj.lo: cpu-pj.c $(INCDIR)/filenames.h
 cpu-powerpc.lo: cpu-powerpc.c $(INCDIR)/filenames.h
 cpu-rs6000.lo: cpu-rs6000.c $(INCDIR)/filenames.h
@@ -1700,6 +1705,9 @@ oasys.lo: oasys.c $(INCDIR)/filenames.h $(INCDIR)/oasys.h \
 pc532-mach.lo: pc532-mach.c $(INCDIR)/filenames.h libaout.h \
   $(INCDIR)/bfdlink.h $(INCDIR)/aout/aout64.h aout-target.h \
   $(INCDIR)/aout/stab_gnu.h $(INCDIR)/aout/stab.def $(INCDIR)/aout/ar.h
+pdp11.lo: pdp11.c libaout.h $(INCDIR)/bfdlink.h \
+  aout-target.h $(INCDIR)/aout/aout64.h $(INCDIR)/aout/stab_gnu.h \
+  $(INCDIR)/aout/stab.def $(INCDIR)/aout/ar.h
 pe-arm.lo: pe-arm.c $(INCDIR)/filenames.h coff-arm.c \
   $(INCDIR)/coff/arm.h $(INCDIR)/coff/internal.h $(INCDIR)/coff/pe.h \
   libcoff.h $(INCDIR)/bfdlink.h coffcode.h peicode.h \
diff --git a/bfd/aout-target.h b/bfd/aout-target.h
index 1902cdf..a27c11b 100644
--- a/bfd/aout-target.h
+++ b/bfd/aout-target.h
@@ -156,7 +156,7 @@ MY(object_p) (abfd)
 #ifdef SWAP_MAGIC
   exec.a_info = SWAP_MAGIC (exec_bytes.e_info);
 #else
-  exec.a_info = bfd_h_get_32 (abfd, exec_bytes.e_info);
+  exec.a_info = GET_MAGIC (abfd, exec_bytes.e_info);
 #endif /* SWAP_MAGIC */
 
   if (N_BADMAG (exec)) return 0;
diff --git a/bfd/archures.c b/bfd/archures.c
index b15de52..7ca1c06 100644
--- a/bfd/archures.c
+++ b/bfd/archures.c
@@ -155,6 +155,7 @@ DESCRIPTION
 .#define bfd_mach_h8300   1
 .#define bfd_mach_h8300h  2
 .#define bfd_mach_h8300s  3
+.  bfd_arch_pdp11,     {* DEC PDP-11 *}
 .  bfd_arch_powerpc,   {* PowerPC *}
 .#define bfd_mach_ppc		0
 .#define bfd_mach_ppc_403	403
@@ -308,6 +309,7 @@ extern const bfd_arch_info_type bfd_m88k_arch;
 extern const bfd_arch_info_type bfd_mips_arch;
 extern const bfd_arch_info_type bfd_mn10200_arch;
 extern const bfd_arch_info_type bfd_mn10300_arch;
+extern const bfd_arch_info_type bfd_pdp11_arch;
 extern const bfd_arch_info_type bfd_powerpc_arch;
 extern const bfd_arch_info_type bfd_rs6000_arch;
 extern const bfd_arch_info_type bfd_pj_arch;
@@ -354,6 +356,7 @@ static const bfd_arch_info_type * const bfd_archures_list[] = {
   &bfd_mips_arch,
   &bfd_mn10200_arch,
   &bfd_mn10300_arch,
+  &bfd_pdp11_arch,
   &bfd_powerpc_arch,
   &bfd_rs6000_arch,
   &bfd_sh_arch,
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index db4576d..46240ec 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -1424,6 +1424,7 @@ enum bfd_architecture
 #define bfd_mach_h8300   1
 #define bfd_mach_h8300h  2
 #define bfd_mach_h8300s  3
+  bfd_arch_pdp11,     /* DEC PDP-11 */
   bfd_arch_powerpc,   /* PowerPC */
 #define bfd_mach_ppc           0
 #define bfd_mach_ppc_403       403
@@ -2088,6 +2089,10 @@ to compensate for the borrow when the low bits are added. */
   BFD_RELOC_NS32K_DISP_16_PCREL,
   BFD_RELOC_NS32K_DISP_32_PCREL,
 
+/* PDP11 relocations */
+  BFD_RELOC_PDP11_DISP_8_PCREL,
+  BFD_RELOC_PDP11_DISP_6_PCREL,
+
 /* Picojava relocs.  Not all of these appear in object files. */
   BFD_RELOC_PJ_CODE_HI16,
   BFD_RELOC_PJ_CODE_LO16,
diff --git a/bfd/config.bfd b/bfd/config.bfd
index f45e839..b7e1376 100644
--- a/bfd/config.bfd
+++ b/bfd/config.bfd
@@ -44,6 +44,7 @@ m6812*|m68hc12*) targ_archs="bfd_m68hc12_arch bfd_m68hc11_arch" ;;
 m68*)	targ_archs=bfd_m68k_arch ;;
 m88*)	targ_archs=bfd_m88k_arch ;;
 mips*)	targ_archs=bfd_mips_arch ;;
+pdp11*)	targ_archs=bfd_pdp11_arch ;;
 pj*)	targ_archs="bfd_pj_arch bfd_i386_arch";;
 powerpc*) targ_archs="bfd_rs6000_arch bfd_powerpc_arch" ;;
 s390*)  targ_archs=bfd_s390_arch ;;
@@ -680,6 +681,11 @@ case "${targ}" in
     targ_underscore=yes
     ;;
 
+  pdp11-*-*)
+    targ_defvec=pdp11_aout_vec
+    targ_underscore=yes
+    ;;
+
   pj-*-*)
     targ_defvec=bfd_elf32_pj_vec
     targ_selvecs="bfd_elf32_pj_vec bfd_elf32_pjl_vec"
diff --git a/bfd/configure b/bfd/configure
index 1695981..4f6ddb3 100755
--- a/bfd/configure
+++ b/bfd/configure
@@ -6061,6 +6061,7 @@ do
     nlm32_powerpc_vec)		tb="$tb nlm32-ppc.lo nlm32.lo nlm.lo" ;;
     pc532netbsd_vec)		tb="$tb ns32knetbsd.lo aout-ns32k.lo" ;;
     pc532machaout_vec)		tb="$tb pc532-mach.lo aout-ns32k.lo" ;;
+    pdp11_aout_vec)		tb="$tb pdp11.lo" ;;
     pmac_xcoff_vec)		tb="$tb coff-pmac.lo xcofflink.lo" ;;
     rs6000coff_vec)		tb="$tb coff-rs6000.lo xcofflink.lo" ;;
     bfd_powerpc_pe_vec)         tb="$tb pe-ppc.lo peigen.lo cofflink.lo" ;;  
@@ -6182,17 +6183,17 @@ for ac_hdr in unistd.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:6186: checking for $ac_hdr" >&5
+echo "configure:6187: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6191 "configure"
+#line 6192 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:6196: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:6197: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -6221,12 +6222,12 @@ done
 for ac_func in getpagesize
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6225: checking for $ac_func" >&5
+echo "configure:6226: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6230 "configure"
+#line 6231 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6249,7 +6250,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6253: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6254: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6274,7 +6275,7 @@ fi
 done
 
 echo $ac_n "checking for working mmap""... $ac_c" 1>&6
-echo "configure:6278: checking for working mmap" >&5
+echo "configure:6279: checking for working mmap" >&5
 if eval "test \"`echo '$''{'ac_cv_func_mmap_fixed_mapped'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6282,7 +6283,7 @@ else
   ac_cv_func_mmap_fixed_mapped=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 6286 "configure"
+#line 6287 "configure"
 #include "confdefs.h"
 
 /* Thanks to Mike Haertel and Jim Avera for this test.
@@ -6422,7 +6423,7 @@ main()
 }
 
 EOF
-if { (eval echo configure:6426: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:6427: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_func_mmap_fixed_mapped=yes
 else
@@ -6447,12 +6448,12 @@ fi
 for ac_func in madvise mprotect
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6451: checking for $ac_func" >&5
+echo "configure:6452: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6456 "configure"
+#line 6457 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6475,7 +6476,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6479: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6480: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
diff --git a/bfd/configure.in b/bfd/configure.in
index 3ced576..118a706 100644
--- a/bfd/configure.in
+++ b/bfd/configure.in
@@ -610,6 +610,7 @@ do
     nlm32_powerpc_vec)		tb="$tb nlm32-ppc.lo nlm32.lo nlm.lo" ;;
     pc532netbsd_vec)		tb="$tb ns32knetbsd.lo aout-ns32k.lo" ;;
     pc532machaout_vec)		tb="$tb pc532-mach.lo aout-ns32k.lo" ;;
+    pdp11_aout_vec)		tb="$tb pdp11.lo" ;;
     pmac_xcoff_vec)		tb="$tb coff-pmac.lo xcofflink.lo" ;;
     rs6000coff_vec)		tb="$tb coff-rs6000.lo xcofflink.lo" ;;
     bfd_powerpc_pe_vec)         tb="$tb pe-ppc.lo peigen.lo cofflink.lo" ;;  
diff --git a/bfd/cpu-pdp11.c b/bfd/cpu-pdp11.c
new file mode 100644
index 0000000..6d8971c
--- /dev/null
+++ b/bfd/cpu-pdp11.c
@@ -0,0 +1,39 @@
+/* BFD back-end for PDP-11 support.
+   Copyright (C) 2001 Free Software Foundation, Inc.
+
+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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+
+const bfd_arch_info_type bfd_pdp11_arch =
+  {
+    16,	/* 16 bits in a word */
+    16,	/* 16 bits in an address */
+    8,	/* 8 bits in a byte */
+    bfd_arch_pdp11,
+    0,	/* only 1 machine */
+    "pdp11",
+    "pdp11",
+    1,		/* aligment = 16 bit */
+    true, /* the one and only */
+    bfd_default_compatible, 
+    bfd_default_scan ,
+    0,
+  };
+
diff --git a/bfd/libaout.h b/bfd/libaout.h
index 1682428..818b10c 100644
--- a/bfd/libaout.h
+++ b/bfd/libaout.h
@@ -33,22 +33,39 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 #if ARCH_SIZE==64
 #define GET_WORD bfd_h_get_64
 #define GET_SWORD bfd_h_get_signed_64
+#define GET_MAGIC bfd_h_get_32
 #define PUT_WORD bfd_h_put_64
+#define PUT_MAGIC bfd_h_put_32
 #ifndef NAME
 #define NAME(x,y) CAT3(x,_64_,y)
 #endif
 #define JNAME(x) CAT(x,_64)
 #define BYTES_IN_WORD 8
+#else
+#if ARCH_SIZE==16
+#define GET_WORD bfd_h_get_16
+#define GET_SWORD bfd_h_get_signed_16
+#define GET_MAGIC bfd_h_get_16
+#define PUT_WORD bfd_h_put_16
+#define PUT_MAGIC bfd_h_put_16
+#ifndef NAME
+#define NAME(x,y) CAT3(x,_16_,y)
+#endif
+#define JNAME(x) CAT(x,_16)
+#define BYTES_IN_WORD 2
 #else /* ARCH_SIZE == 32 */
 #define GET_WORD bfd_h_get_32
 #define GET_SWORD bfd_h_get_signed_32
+#define GET_MAGIC bfd_h_get_32
 #define PUT_WORD bfd_h_put_32
+#define PUT_MAGIC bfd_h_put_32
 #ifndef NAME
 #define NAME(x,y) CAT3(x,_32_,y)
 #endif
 #define JNAME(x) CAT(x,_32)
 #define BYTES_IN_WORD 4
 #endif /* ARCH_SIZE==32 */
+#endif /* ARCH_SIZE==64 */
 
 /* Declare at file level, since used in parameter lists, which have
    weird scope.  */
@@ -567,6 +584,8 @@ NAME(aout,bfd_free_cached_info) PARAMS ((bfd *));
 
 /* A.out uses the generic versions of these routines... */
 
+#define	aout_16_get_section_contents	_bfd_generic_get_section_contents
+
 #define	aout_32_get_section_contents	_bfd_generic_get_section_contents
 
 #define	aout_64_get_section_contents	_bfd_generic_get_section_contents
diff --git a/bfd/libbfd.h b/bfd/libbfd.h
index 7fee079..4ed1e76 100644
--- a/bfd/libbfd.h
+++ b/bfd/libbfd.h
@@ -735,6 +735,8 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
   "BFD_RELOC_NS32K_DISP_8_PCREL",
   "BFD_RELOC_NS32K_DISP_16_PCREL",
   "BFD_RELOC_NS32K_DISP_32_PCREL",
+  "BFD_RELOC_PDP11_DISP_8_PCREL",
+  "BFD_RELOC_PDP11_DISP_6_PCREL",
   "BFD_RELOC_PJ_CODE_HI16",
   "BFD_RELOC_PJ_CODE_LO16",
   "BFD_RELOC_PJ_CODE_DIR16",
diff --git a/bfd/pdp11.c b/bfd/pdp11.c
new file mode 100644
index 0000000..4f7e460
--- /dev/null
+++ b/bfd/pdp11.c
@@ -0,0 +1,5022 @@
+/* BFD back-end for PDP-11 a.out binaries.
+   Copyright (C) 2001 Free Software Foundation, Inc.
+
+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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+/* BFD backend for PDP-11, running 2.11BSD in particular.
+
+   This file was hacked up by looking hard at the existing vaxnetbsd
+   back end and the header files in 2.11BSD.
+
+   TODO
+   * support for V7 file formats
+   * support for overlay object files (see 2.11 a.out(5))
+   * support for old and very old archives
+   (see 2.11 ar(5), historical section)
+   
+   Search for TODO to find other areas needing more work.  */
+
+#define	BYTES_IN_WORD	2
+#define	BYTES_IN_LONG	4
+#define ARCH_SIZE	16
+#undef TARGET_IS_BIG_ENDIAN_P
+
+#define	TARGET_PAGE_SIZE	1024
+#define	SEGMENT__SIZE	TARGET_PAGE_SIZE
+
+#define	DEFAULT_ARCH	bfd_arch_pdp11
+#define	DEFAULT_MID 	M_PDP11
+
+#define MY(OP) CAT(pdp11_aout_,OP)
+/* This needs to start with a.out so GDB knows it is an a.out variant.  */
+#define TARGETNAME "a.out-pdp11"
+
+/* This is the normal load address for executables.  */
+#define TEXT_START_ADDR		0
+
+/* The header is not included in the text segment.  */
+#define N_HEADER_IN_TEXT(x)	0
+
+/* There are no shared libraries.  */
+#define N_SHARED_LIB(x) 	0
+
+/* There is no flags field.  */
+#define N_FLAGS(exec)		0
+
+#define N_SET_FLAGS(exec, flags) do { } while (0)
+#define N_BADMAG(x) (((x).a_info != OMAGIC) && \
+                     ((x).a_info != NMAGIC) && \
+                     ((x).a_info != A_MAGIC3) && \
+                     ((x).a_info != A_MAGIC4) && \
+                     ((x).a_info != A_MAGIC5) && \
+                     ((x).a_info != A_MAGIC6))
+
+#include "bfd.h"
+
+#define external_exec pdp11_external_exec
+struct pdp11_external_exec
+  {
+    bfd_byte e_info[2];	/* magic number				*/
+    bfd_byte e_text[2];	/* length of text section in bytes	*/
+    bfd_byte e_data[2];	/* length of data section in bytes	*/
+    bfd_byte e_bss[2];	/* length of bss area in bytes 		*/
+    bfd_byte e_syms[2];	/* length of symbol table in bytes 	*/
+    bfd_byte e_entry[2];	/* start address 			*/
+    bfd_byte e_unused[2];	/* not used				*/
+    bfd_byte e_flag[2];	/* relocation info stripped		*/
+    bfd_byte e_relocatable; /* ugly hack */
+  };
+
+#define	EXEC_BYTES_SIZE	(8 * 2)
+
+#define	A_MAGIC1	OMAGIC
+#define OMAGIC		0407	/* ...object file or impure executable.  */
+#define	A_MAGIC2	NMAGIC
+#define NMAGIC		0410	/* pure executable.  */
+#define ZMAGIC		0413	/* demand-paged executable.  */
+#define	A_MAGIC3	0411	/* separated I&D */
+#define	A_MAGIC4	0405	/* overlay */
+#define	A_MAGIC5	0430	/* auto-overlay (nonseparate) */
+#define	A_MAGIC6	0431	/* auto-overlay (separate) */
+#define QMAGIC		0
+#define BMAGIC		0
+
+#define A_FLAG_RELOC_STRIPPED	0x0001
+
+#define external_nlist pdp11_external_nlist
+struct pdp11_external_nlist
+  {
+    bfd_byte e_unused[2];	/* unused */
+    bfd_byte e_strx[2];		/* index into string table of name */
+    bfd_byte e_type[1];		/* type of symbol */
+    bfd_byte e_ovly[1];		/* overlay number */
+    bfd_byte e_value[2];	/* value of symbol */
+  };
+
+#define	EXTERNAL_NLIST_SIZE	8
+
+#define N_TXTOFF(x)	(EXEC_BYTES_SIZE)
+#define N_DATOFF(x)	(N_TXTOFF(x) + (x).a_text)
+#define N_TRELOFF(x)	(N_DATOFF(x) + (x).a_data)
+#define N_DRELOFF(x)	(N_TRELOFF(x) + (x).a_trsize)
+#define N_SYMOFF(x)	(N_DRELOFF(x) + (x).a_drsize)
+#define N_STROFF(x)	(N_SYMOFF(x) + (x).a_syms)
+
+#define WRITE_HEADERS(abfd, execp) pdp11_aout_write_headers (abfd, execp)
+
+#include "sysdep.h"
+#include "libbfd.h"
+#include "libaout.h"
+
+#define SWAP_MAGIC(ext) bfd_getl16 (ext)
+
+#define MY_entry_is_text_address 1
+
+#define MY_write_object_contents MY(write_object_contents)
+static boolean MY(write_object_contents) PARAMS ((bfd *abfd));
+#define MY_text_includes_header 1
+
+bfd_vma		bfd_getp32	   PARAMS ((const bfd_byte *));
+bfd_signed_vma	bfd_getp_signed_32 PARAMS ((const bfd_byte *));
+void		bfd_putp32	   PARAMS ((bfd_vma, bfd_byte *));
+
+#define MY_BFD_TARGET
+
+#include "aout-target.h"
+
+const bfd_target MY(vec) =
+{
+  TARGETNAME,		/* name */
+  bfd_target_aout_flavour,
+  BFD_ENDIAN_LITTLE,		/* target byte order (little) */
+  BFD_ENDIAN_LITTLE,		/* target headers byte order (little) */
+  (HAS_RELOC | EXEC_P |		/* object flags */
+   HAS_LINENO | HAS_DEBUG |
+   HAS_SYMS | HAS_LOCALS | WP_TEXT),
+  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
+  MY_symbol_leading_char,
+  AR_PAD_CHAR,			/* ar_pad_char */
+  15,				/* ar_max_namelen */
+  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+     bfd_getp32, bfd_getp_signed_32, bfd_putp32,
+     bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
+  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+     bfd_getp32, bfd_getp_signed_32, bfd_putp32,
+     bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
+    {_bfd_dummy_target, MY_object_p, /* bfd_check_format */
+       bfd_generic_archive_p, MY_core_file_p},
+    {bfd_false, MY_mkobject,	/* bfd_set_format */
+       _bfd_generic_mkarchive, bfd_false},
+    {bfd_false, MY_write_object_contents, /* bfd_write_contents */
+       _bfd_write_archive_contents, bfd_false},
+
+     BFD_JUMP_TABLE_GENERIC (MY),
+     BFD_JUMP_TABLE_COPY (MY),
+     BFD_JUMP_TABLE_CORE (MY),
+     BFD_JUMP_TABLE_ARCHIVE (MY),
+     BFD_JUMP_TABLE_SYMBOLS (MY),
+     BFD_JUMP_TABLE_RELOCS (MY),
+     BFD_JUMP_TABLE_WRITE (MY),
+     BFD_JUMP_TABLE_LINK (MY),
+     BFD_JUMP_TABLE_DYNAMIC (MY),
+
+  /* Alternative_target */
+  NULL,
+  
+  (PTR) MY_backend_data,
+};
+
+/* start of modified aoutx.h */
+/* BFD semi-generic back-end for a.out binaries.
+   Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 1998
+   Free Software Foundation, Inc.
+   Written by Cygnus Support.
+
+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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/*
+SECTION
+	a.out backends
+
+
+DESCRIPTION
+
+	BFD supports a number of different flavours of a.out format,
+	though the major differences are only the sizes of the
+	structures on disk, and the shape of the relocation
+	information.
+
+	The support is split into a basic support file @file{aoutx.h}
+	and other files which derive functions from the base. One
+	derivation file is @file{aoutf1.h} (for a.out flavour 1), and
+	adds to the basic a.out functions support for sun3, sun4, 386
+	and 29k a.out files, to create a target jump vector for a
+	specific target.
+
+	This information is further split out into more specific files
+	for each machine, including @file{sunos.c} for sun3 and sun4,
+	@file{newsos3.c} for the Sony NEWS, and @file{demo64.c} for a
+	demonstration of a 64 bit a.out format.
+
+	The base file @file{aoutx.h} defines general mechanisms for
+	reading and writing records to and from disk and various
+	other methods which BFD requires. It is included by
+	@file{aout32.c} and @file{aout64.c} to form the names
+	<<aout_32_swap_exec_header_in>>, <<aout_64_swap_exec_header_in>>, etc.
+
+	As an example, this is what goes on to make the back end for a
+	sun4, from @file{aout32.c}:
+
+|	#define ARCH_SIZE 32
+|	#include "aoutx.h"
+
+	Which exports names:
+
+|	...
+|	aout_32_canonicalize_reloc
+|	aout_32_find_nearest_line
+|	aout_32_get_lineno
+|	aout_32_get_reloc_upper_bound
+|	...
+
+	from @file{sunos.c}:
+
+|	#define TARGET_NAME "a.out-sunos-big"
+|	#define VECNAME    sunos_big_vec
+|	#include "aoutf1.h"
+
+	requires all the names from @file{aout32.c}, and produces the jump vector
+
+|	sunos_big_vec
+
+	The file @file{host-aout.c} is a special case.  It is for a large set
+	of hosts that use ``more or less standard'' a.out files, and
+	for which cross-debugging is not interesting.  It uses the
+	standard 32-bit a.out support routines, but determines the
+	file offsets and addresses of the text, data, and BSS
+	sections, the machine architecture and machine type, and the
+	entry point address, in a host-dependent manner.  Once these
+	values have been determined, generic code is used to handle
+	the  object file.
+
+	When porting it to run on a new system, you must supply:
+
+|        HOST_PAGE_SIZE
+|        HOST_SEGMENT_SIZE
+|        HOST_MACHINE_ARCH       (optional)
+|        HOST_MACHINE_MACHINE    (optional)
+|        HOST_TEXT_START_ADDR
+|        HOST_STACK_END_ADDR
+
+	in the file @file{../include/sys/h-@var{XXX}.h} (for your host).  These
+	values, plus the structures and macros defined in @file{a.out.h} on
+	your host system, will produce a BFD target that will access
+	ordinary a.out files on your host. To configure a new machine
+	to use @file{host-aout.c}, specify:
+
+|	TDEFAULTS = -DDEFAULT_VECTOR=host_aout_big_vec
+|	TDEPFILES= host-aout.o trad-core.o
+
+	in the @file{config/@var{XXX}.mt} file, and modify @file{configure.in}
+	to use the
+	@file{@var{XXX}.mt} file (by setting "<<bfd_target=XXX>>") when your
+	configuration is selected.
+
+*/
+
+/* Some assumptions:
+   * Any BFD with D_PAGED set is ZMAGIC, and vice versa.
+     Doesn't matter what the setting of WP_TEXT is on output, but it'll
+     get set on input.
+   * Any BFD with D_PAGED clear and WP_TEXT set is NMAGIC.
+   * Any BFD with both flags clear is OMAGIC.
+   (Just want to make these explicit, so the conditions tested in this
+   file make sense if you're more familiar with a.out than with BFD.)  */
+
+#define KEEPIT udata.i
+
+#include <string.h>		/* For strchr and friends */
+#include <ctype.h>
+#include "bfd.h"
+#include "sysdep.h"
+#include "bfdlink.h"
+
+#include "libaout.h"
+/*#include "libbfd.h"*/
+#include "aout/aout64.h"
+#include "aout/stab_gnu.h"
+#include "aout/ar.h"
+
+#undef N_TYPE
+#undef N_UNDF
+#undef N_ABS
+#undef N_TEXT
+#undef N_DATA
+#undef N_BSS
+#undef N_REG
+#undef N_FN
+#undef N_EXT
+#define N_TYPE		0x1f	/* type mask */
+#define N_UNDF		0x00	/* undefined */
+#define N_ABS		0x01	/* absolute */
+#define N_TEXT		0x02	/* text segment */
+#define N_DATA		0x03	/* data segment */
+#define N_BSS		0x04	/* bss segment */
+#define N_REG		0x14	/* register symbol */
+#define N_FN		0x1f	/* file name */
+
+#define N_EXT		0x20	/* external flag */
+
+#define RELOC_SIZE 2
+
+struct pdp11_aout_reloc_external
+{
+  bfd_byte e_reloc_entry[2];
+};
+
+#define RELFLG		0x0001	/* pc-relative flag */
+#define RTYPE		0x000e	/* type mask */
+#define RIDXMASK	0xfff0	/* index mask */
+
+#define RABS		0x00	/* absolute */
+#define RTEXT		0x02	/* text */
+#define RDATA		0x04	/* data */
+#define RBSS		0x06	/* bss */
+#define REXT		0x08	/* external */
+
+#define RINDEX(x)	(((x) & 0xfff0) >> 4)
+
+static boolean aout_get_external_symbols PARAMS ((bfd *));
+static boolean translate_from_native_sym_flags
+  PARAMS ((bfd *, aout_symbol_type *));
+static boolean translate_to_native_sym_flags
+  PARAMS ((bfd *, asymbol *, struct external_nlist *));
+static void adjust_o_magic PARAMS ((bfd *, struct internal_exec *));
+static void adjust_z_magic PARAMS ((bfd *, struct internal_exec *));
+static void adjust_n_magic PARAMS ((bfd *, struct internal_exec *));
+
+/*
+SUBSECTION
+	Relocations
+
+DESCRIPTION
+	The file @file{aoutx.h} provides for both the @emph{standard}
+	and @emph{extended} forms of a.out relocation records.
+
+	The standard records contain only an
+	address, a symbol index, and a type field. The extended records
+	(used on 29ks and sparcs) also have a full integer for an
+	addend.
+
+*/
+
+#ifndef MY_final_link_relocate
+#define MY_final_link_relocate _bfd_final_link_relocate
+#endif
+
+#ifndef MY_relocate_contents
+#define MY_relocate_contents _bfd_relocate_contents
+#endif
+
+reloc_howto_type howto_table_pdp11[] =
+{
+  /* type              rs size bsz  pcrel bitpos ovrf                     sf name     part_inpl readmask  setmask    pcdone */
+HOWTO( 0,	       0,  1,  16,  false, 0, complain_overflow_signed,0,"16",	true, 0x0000ffff,0x0000ffff, false),
+HOWTO( 1,	       0,  1,  16,  true,  0, complain_overflow_signed,0,"DISP16",	true, 0x0000ffff,0x0000ffff, false),
+};
+
+#define TABLE_SIZE(TABLE)	(sizeof(TABLE)/sizeof(TABLE[0]))
+
+reloc_howto_type *
+NAME(aout,reloc_type_lookup) (abfd,code)
+     bfd * abfd ATTRIBUTE_UNUSED;
+     bfd_reloc_code_real_type code;
+{
+  switch (code)
+    {
+    case BFD_RELOC_16:
+      return &howto_table_pdp11[0];
+    case BFD_RELOC_16_PCREL:
+      return &howto_table_pdp11[1];
+    default:
+      return (reloc_howto_type *)NULL;
+    }
+}
+
+static int
+pdp11_aout_write_headers (abfd, execp)
+     bfd *abfd;
+     struct internal_exec *execp;
+{
+  struct external_exec exec_bytes;
+  bfd_size_type text_size;
+  file_ptr text_end;
+
+  if (adata(abfd).magic == undecided_magic)
+    NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end);
+
+  execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE;
+  execp->a_entry = bfd_get_start_address (abfd);
+
+  if (obj_textsec (abfd)->reloc_count > 0 ||
+      obj_datasec (abfd)->reloc_count > 0)
+    {
+      execp->a_trsize = execp->a_text;
+      execp->a_drsize = execp->a_data;
+    }
+  else
+    {
+      execp->a_trsize = 0;
+      execp->a_drsize = 0;
+    }
+
+  NAME(aout,swap_exec_header_out) (abfd, execp, &exec_bytes);
+
+  if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
+    return false;
+
+  if (bfd_write ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd)
+      != EXEC_BYTES_SIZE)
+    return false;
+
+  /* Now write out reloc info, followed by syms and strings */
+
+  if (bfd_get_outsymbols (abfd) != (asymbol **) NULL
+      && bfd_get_symcount (abfd) != 0)
+    {
+      if (bfd_seek (abfd, (file_ptr)(N_SYMOFF(*execp)), SEEK_SET) != 0)
+	return false;
+
+      if (! NAME(aout,write_syms)(abfd)) return false;
+    }
+
+  if (obj_textsec (abfd)->reloc_count > 0 ||
+      obj_datasec (abfd)->reloc_count > 0)
+    {
+      if (bfd_seek (abfd, (file_ptr)(N_TRELOFF(*execp)), SEEK_SET) != 0)
+	return false;
+      if (!NAME(aout,squirt_out_relocs) (abfd, obj_textsec (abfd)))
+	return false;
+
+      if (bfd_seek (abfd, (file_ptr)(N_DRELOFF(*execp)), SEEK_SET) != 0)
+	return false;
+      if (!NAME(aout,squirt_out_relocs)(abfd, obj_datasec (abfd)))
+	return false;
+    }
+
+  return true;
+}									      
+
+/* Write an object file.
+   Section contents have already been written.  We write the
+   file header, symbols, and relocation.  */
+
+static boolean
+MY(write_object_contents) (abfd)
+     bfd *abfd;
+{
+  struct internal_exec *execp = exec_hdr (abfd);
+
+  /* We must make certain that the magic number has been set.  This
+     will normally have been done by set_section_contents, but only if
+     there actually are some section contents.  */
+  if (! abfd->output_has_begun)
+    {
+      bfd_size_type text_size;
+      file_ptr text_end;
+
+      NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end);
+    }
+
+  obj_reloc_entry_size (abfd) = RELOC_SIZE;
+
+  return WRITE_HEADERS(abfd, execp);
+}
+
+/*
+SUBSECTION
+	Internal entry points
+
+DESCRIPTION
+	@file{aoutx.h} exports several routines for accessing the
+	contents of an a.out file, which are gathered and exported in
+	turn by various format specific files (eg sunos.c).
+
+*/
+
+/*
+FUNCTION
+	 aout_@var{size}_swap_exec_header_in
+
+SYNOPSIS
+	void aout_@var{size}_swap_exec_header_in,
+           (bfd *abfd,
+            struct external_exec *raw_bytes,
+            struct internal_exec *execp);
+
+DESCRIPTION
+	Swap the information in an executable header @var{raw_bytes} taken
+	from a raw byte stream memory image into the internal exec header
+	structure @var{execp}.
+*/
+
+#ifndef NAME_swap_exec_header_in
+void
+NAME(aout,swap_exec_header_in) (abfd, raw_bytes, execp)
+     bfd *abfd;
+     struct external_exec *raw_bytes;
+     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 ((PTR) execp, 0, sizeof (struct internal_exec));
+  /* Now fill in fields in the execp, from the bytes in the raw data.  */
+  execp->a_info   = GET_MAGIC (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);
+
+  if (GET_WORD (abfd, bytes->e_flag) & A_FLAG_RELOC_STRIPPED)
+    {
+      execp->a_trsize = 0;
+      execp->a_drsize = 0;
+    }
+  else
+    {
+      execp->a_trsize = execp->a_text;
+      execp->a_drsize = execp->a_data;
+    }
+}
+#define NAME_swap_exec_header_in NAME(aout,swap_exec_header_in)
+#endif
+
+/*
+FUNCTION
+	aout_@var{size}_swap_exec_header_out
+
+SYNOPSIS
+	void aout_@var{size}_swap_exec_header_out
+	  (bfd *abfd,
+	   struct internal_exec *execp,
+	   struct external_exec *raw_bytes);
+
+DESCRIPTION
+	Swap the information in an internal exec header structure
+	@var{execp} into the buffer @var{raw_bytes} ready for writing to disk.
+*/
+void
+NAME(aout,swap_exec_header_out) (abfd, execp, raw_bytes)
+     bfd *abfd;
+     struct internal_exec *execp;
+     struct external_exec *raw_bytes;
+{
+  struct external_exec *bytes = (struct external_exec *)raw_bytes;
+
+  /* Now fill in fields in the raw data, from the fields in the exec struct. */
+  PUT_MAGIC (abfd, execp->a_info,		bytes->e_info);
+  PUT_WORD (abfd, execp->a_text,		bytes->e_text);
+  PUT_WORD (abfd, execp->a_data,		bytes->e_data);
+  PUT_WORD (abfd, execp->a_bss,			bytes->e_bss);
+  PUT_WORD (abfd, execp->a_syms,		bytes->e_syms);
+  PUT_WORD (abfd, execp->a_entry,		bytes->e_entry);
+  PUT_WORD (abfd, 0,				bytes->e_unused);
+
+  if ((execp->a_trsize == 0 || execp->a_text == 0) &&
+      (execp->a_drsize == 0 || execp->a_data == 0))
+    PUT_WORD (abfd, A_FLAG_RELOC_STRIPPED,	bytes->e_flag);
+  else if (execp->a_trsize == execp->a_text &&
+	   execp->a_drsize == execp->a_data)
+    PUT_WORD (abfd, 0,				bytes->e_flag);
+  else
+    {
+      /* TODO: print a proper warning message */
+      fprintf (stderr, "BFD:%s:%d: internal error\n", __FILE__, __LINE__);
+      PUT_WORD (abfd, 0,			bytes->e_flag);
+    }
+}
+
+/* Make all the section for an a.out file.  */
+
+boolean
+NAME(aout,make_sections) (abfd)
+     bfd *abfd;
+{
+  if (obj_textsec (abfd) == (asection *) NULL
+      && bfd_make_section (abfd, ".text") == (asection *) NULL)
+    return false;
+  if (obj_datasec (abfd) == (asection *) NULL
+      && bfd_make_section (abfd, ".data") == (asection *) NULL)
+    return false;
+  if (obj_bsssec (abfd) == (asection *) NULL
+      && bfd_make_section (abfd, ".bss") == (asection *) NULL)
+    return false;
+  return true;
+}
+
+/*
+FUNCTION
+	aout_@var{size}_some_aout_object_p
+
+SYNOPSIS
+	const bfd_target *aout_@var{size}_some_aout_object_p
+	 (bfd *abfd,
+	  const bfd_target *(*callback_to_real_object_p)());
+
+DESCRIPTION
+	Some a.out variant thinks that the file open in @var{abfd}
+	checking is an a.out file.  Do some more checking, and set up
+	for access if it really is.  Call back to the calling
+	environment's "finish up" function just before returning, to
+	handle any last-minute setup.
+*/
+
+const bfd_target *
+NAME(aout,some_aout_object_p) (abfd, execp, callback_to_real_object_p)
+     bfd *abfd;
+     struct internal_exec *execp;
+     const bfd_target *(*callback_to_real_object_p) PARAMS ((bfd *));
+{
+  struct aout_data_struct *rawptr, *oldrawptr;
+  const bfd_target *result;
+
+  rawptr = (struct aout_data_struct  *) bfd_zalloc (abfd, sizeof (struct aout_data_struct ));
+  if (rawptr == NULL)
+    return 0;
+
+  oldrawptr = abfd->tdata.aout_data;
+  abfd->tdata.aout_data = rawptr;
+
+  /* Copy the contents of the old tdata struct.
+     In particular, we want the subformat, since for hpux it was set in
+     hp300hpux.c:swap_exec_header_in and will be used in
+     hp300hpux.c:callback.  */
+  if (oldrawptr != NULL)
+    *abfd->tdata.aout_data = *oldrawptr;
+
+  abfd->tdata.aout_data->a.hdr = &rawptr->e;
+  *(abfd->tdata.aout_data->a.hdr) = *execp;	/* Copy in the internal_exec struct */
+  execp = abfd->tdata.aout_data->a.hdr;
+
+  /* Set the file flags */
+  abfd->flags = BFD_NO_FLAGS;
+  if (execp->a_drsize || execp->a_trsize)
+    abfd->flags |= HAS_RELOC;
+  /* Setting of EXEC_P has been deferred to the bottom of this function */
+  if (execp->a_syms)
+    abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
+  if (N_DYNAMIC(*execp))
+    abfd->flags |= DYNAMIC;
+
+  if (N_MAGIC (*execp) == ZMAGIC)
+    {
+      abfd->flags |= D_PAGED | WP_TEXT;
+      adata (abfd).magic = z_magic;
+    }
+  else if (N_MAGIC (*execp) == QMAGIC)
+    {
+      abfd->flags |= D_PAGED | WP_TEXT;
+      adata (abfd).magic = z_magic;
+      adata (abfd).subformat = q_magic_format;
+    }
+  else if (N_MAGIC (*execp) == NMAGIC)
+    {
+      abfd->flags |= WP_TEXT;
+      adata (abfd).magic = n_magic;
+    }
+  else if (N_MAGIC (*execp) == OMAGIC
+	   || N_MAGIC (*execp) == BMAGIC)
+    adata (abfd).magic = o_magic;
+  else
+    {
+      /* Should have been checked with N_BADMAG before this routine
+	 was called.  */
+      abort ();
+    }
+
+  bfd_get_start_address (abfd) = execp->a_entry;
+
+  obj_aout_symbols (abfd) = (aout_symbol_type *)NULL;
+  bfd_get_symcount (abfd) = execp->a_syms / sizeof (struct external_nlist);
+
+  /* The default relocation entry size is that of traditional V7 Unix.  */
+  obj_reloc_entry_size (abfd) = RELOC_SIZE;
+
+  /* The default symbol entry size is that of traditional Unix. */
+  obj_symbol_entry_size (abfd) = EXTERNAL_NLIST_SIZE;
+
+#ifdef USE_MMAP
+  bfd_init_window (&obj_aout_sym_window (abfd));
+  bfd_init_window (&obj_aout_string_window (abfd));
+#endif
+  obj_aout_external_syms (abfd) = NULL;
+  obj_aout_external_strings (abfd) = NULL;
+  obj_aout_sym_hashes (abfd) = NULL;
+
+  if (! NAME(aout,make_sections) (abfd))
+    return NULL;
+
+  obj_datasec (abfd)->_raw_size = execp->a_data;
+  obj_bsssec (abfd)->_raw_size = execp->a_bss;
+
+  obj_textsec (abfd)->flags =
+    (execp->a_trsize != 0
+     ? (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_RELOC)
+     : (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS));
+  obj_datasec (abfd)->flags =
+    (execp->a_drsize != 0
+     ? (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS | SEC_RELOC)
+     : (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS));
+  obj_bsssec (abfd)->flags = SEC_ALLOC;
+
+#ifdef THIS_IS_ONLY_DOCUMENTATION
+  /* The common code can't fill in these things because they depend
+     on either the start address of the text segment, the rounding
+     up of virtual addresses between segments, or the starting file
+     position of the text segment -- all of which varies among different
+     versions of a.out.  */
+
+  /* Call back to the format-dependent code to fill in the rest of the
+     fields and do any further cleanup.  Things that should be filled
+     in by the callback:  */
+
+  struct exec *execp = exec_hdr (abfd);
+
+  obj_textsec (abfd)->size = N_TXTSIZE(*execp);
+  obj_textsec (abfd)->raw_size = N_TXTSIZE(*execp);
+  /* data and bss are already filled in since they're so standard */
+
+  /* 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_str_filepos (abfd) = N_STROFF (*execp);
+  obj_sym_filepos (abfd) = N_SYMOFF (*execp);
+
+  /* Determine the architecture and machine type of the object file.  */
+  abfd->obj_arch = bfd_arch_obscure;
+
+  adata(abfd)->page_size = TARGET_PAGE_SIZE;
+  adata(abfd)->segment_size = SEGMENT_SIZE;
+  adata(abfd)->exec_bytes_size = EXEC_BYTES_SIZE;
+
+  return abfd->xvec;
+
+  /* The architecture is encoded in various ways in various a.out variants,
+     or is not encoded at all in some of them.  The relocation size depends
+     on the architecture and the a.out variant.  Finally, the return value
+     is the bfd_target vector in use.  If an error occurs, return zero and
+     set bfd_error to the appropriate error code.
+
+     Formats such as b.out, which have additional fields in the a.out
+     header, should cope with them in this callback as well.  */
+#endif				/* DOCUMENTATION */
+
+  result = (*callback_to_real_object_p)(abfd);
+
+  /* Now that the segment addresses have been worked out, take a better
+     guess at whether the file is executable.  If the entry point
+     is within the text segment, assume it is.  (This makes files
+     executable even if their entry point address is 0, as long as
+     their text starts at zero.).
+
+     This test had to be changed to deal with systems where the text segment
+     runs at a different location than the default.  The problem is that the
+     entry address can appear to be outside the text segment, thus causing an
+     erroneous conclusion that the file isn't executable.
+
+     To fix this, we now accept any non-zero entry point as an indication of
+     executability.  This will work most of the time, since only the linker
+     sets the entry point, and that is likely to be non-zero for most systems. */
+
+  if (execp->a_entry != 0
+      || (execp->a_entry >= obj_textsec(abfd)->vma
+	  && execp->a_entry < obj_textsec(abfd)->vma + obj_textsec(abfd)->_raw_size))
+    abfd->flags |= EXEC_P;
+#ifdef STAT_FOR_EXEC
+  else
+    {
+      struct stat stat_buf;
+
+      /* The original heuristic doesn't work in some important cases.
+        The a.out file has no information about the text start
+        address.  For files (like kernels) linked to non-standard
+        addresses (ld -Ttext nnn) the entry point may not be between
+        the default text start (obj_textsec(abfd)->vma) and
+        (obj_textsec(abfd)->vma) + text size.  This is not just a mach
+        issue.  Many kernels are loaded at non standard addresses.  */
+      if (abfd->iostream != NULL
+	  && (abfd->flags & BFD_IN_MEMORY) == 0
+	  && (fstat(fileno((FILE *) (abfd->iostream)), &stat_buf) == 0)
+	  && ((stat_buf.st_mode & 0111) != 0))
+	abfd->flags |= EXEC_P;
+    }
+#endif /* STAT_FOR_EXEC */
+
+  if (result)
+    {
+#if 0 /* These should be set correctly anyways.  */
+      abfd->sections = obj_textsec (abfd);
+      obj_textsec (abfd)->next = obj_datasec (abfd);
+      obj_datasec (abfd)->next = obj_bsssec (abfd);
+#endif
+    }
+  else
+    {
+      free (rawptr);
+      abfd->tdata.aout_data = oldrawptr;
+    }
+  return result;
+}
+
+/*
+FUNCTION
+	aout_@var{size}_mkobject
+
+SYNOPSIS
+	boolean aout_@var{size}_mkobject, (bfd *abfd);
+
+DESCRIPTION
+	Initialize BFD @var{abfd} for use with a.out files.
+*/
+
+boolean
+NAME(aout,mkobject) (abfd)
+     bfd *abfd;
+{
+  struct aout_data_struct  *rawptr;
+
+  bfd_set_error (bfd_error_system_call);
+
+  /* Use an intermediate variable for clarity */
+  rawptr = (struct aout_data_struct *)bfd_zalloc (abfd, sizeof (struct aout_data_struct ));
+
+  if (rawptr == NULL)
+    return false;
+
+  abfd->tdata.aout_data = rawptr;
+  exec_hdr (abfd) = &(rawptr->e);
+
+  obj_textsec (abfd) = (asection *)NULL;
+  obj_datasec (abfd) = (asection *)NULL;
+  obj_bsssec (abfd) = (asection *)NULL;
+
+  return true;
+}
+
+
+/*
+FUNCTION
+	aout_@var{size}_machine_type
+
+SYNOPSIS
+	enum machine_type  aout_@var{size}_machine_type
+	 (enum bfd_architecture arch,
+	  unsigned long machine));
+
+DESCRIPTION
+	Keep track of machine architecture and machine type for
+	a.out's. Return the <<machine_type>> for a particular
+	architecture and machine, or <<M_UNKNOWN>> if that exact architecture
+	and machine can't be represented in a.out format.
+
+	If the architecture is understood, machine type 0 (default)
+	is always understood.
+*/
+
+enum machine_type
+NAME(aout,machine_type) (arch, machine, unknown)
+     enum bfd_architecture arch;
+     unsigned long machine;
+     boolean *unknown;
+{
+  enum machine_type arch_flags;
+
+  arch_flags = M_UNKNOWN;
+  *unknown = true;
+
+  switch (arch)
+    {
+    case bfd_arch_sparc:
+      if (machine == 0
+	  || machine == bfd_mach_sparc
+	  || machine == bfd_mach_sparc_sparclite
+	  || machine == bfd_mach_sparc_v9)
+	arch_flags = M_SPARC;
+      else if (machine == bfd_mach_sparc_sparclet)
+	arch_flags = M_SPARCLET;
+      break;
+
+    case bfd_arch_m68k:
+      switch (machine)
+	{
+	case 0:		      arch_flags = M_68010; break;
+	case bfd_mach_m68000: arch_flags = M_UNKNOWN; *unknown = false; break;
+	case bfd_mach_m68010: arch_flags = M_68010; break;
+	case bfd_mach_m68020: 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;
+
+    case bfd_arch_arm:
+      if (machine == 0)	arch_flags = M_ARM;
+      break;
+
+    case bfd_arch_mips:
+      switch (machine)
+	{
+	case 0:
+	case 2000:
+	case bfd_mach_mips3000:
+          arch_flags = M_MIPS1;
+	  break;
+	case bfd_mach_mips4000: /* mips3 */
+	case bfd_mach_mips4400:
+	case bfd_mach_mips8000: /* mips4 */
+	case bfd_mach_mips6000: /* real mips2: */
+          arch_flags = M_MIPS2;
+	  break;
+	default:
+	  arch_flags = M_UNKNOWN;
+	  break;
+	}
+      break;
+
+    case bfd_arch_ns32k:
+      switch (machine)
+	{
+	case 0:    		arch_flags = M_NS32532; break;
+	case 32032:		arch_flags = M_NS32032; break;
+	case 32532:		arch_flags = M_NS32532; break;
+	default:		arch_flags = M_UNKNOWN; break;
+	}
+      break;
+
+    case bfd_arch_pdp11:
+      /* TODO: arch_flags = M_PDP11; */
+      *unknown = false;
+      break;
+
+    case bfd_arch_vax:
+      *unknown = false;
+      break;
+ 
+    default:
+      arch_flags = M_UNKNOWN;
+    }
+
+  if (arch_flags != M_UNKNOWN)
+    *unknown = false;
+
+  return arch_flags;
+}
+
+
+/*
+FUNCTION
+	aout_@var{size}_set_arch_mach
+
+SYNOPSIS
+	boolean aout_@var{size}_set_arch_mach,
+	 (bfd *,
+	  enum bfd_architecture arch,
+	  unsigned long machine));
+
+DESCRIPTION
+	Set the architecture and the machine of the BFD @var{abfd} to the
+	values @var{arch} and @var{machine}.  Verify that @var{abfd}'s format
+	can support the architecture required.
+*/
+
+boolean
+NAME(aout,set_arch_mach) (abfd, arch, machine)
+     bfd *abfd;
+     enum bfd_architecture arch;
+     unsigned long machine;
+{
+  if (! bfd_default_set_arch_mach (abfd, arch, machine))
+    return false;
+
+  if (arch != bfd_arch_unknown)
+    {
+      boolean unknown;
+
+      NAME(aout,machine_type) (arch, machine, &unknown);
+      if (unknown)
+	return false;
+    }
+
+  obj_reloc_entry_size (abfd) = RELOC_SIZE;
+
+  return (*aout_backend_info(abfd)->set_sizes) (abfd);
+}
+
+static void
+adjust_o_magic (abfd, execp)
+     bfd *abfd;
+     struct internal_exec *execp;
+{
+  file_ptr pos = adata (abfd).exec_bytes_size;
+  bfd_vma vma = 0;
+  int pad = 0;
+
+  /* Text.  */
+  obj_textsec (abfd)->filepos = pos;
+  if (! obj_textsec (abfd)->user_set_vma)
+    obj_textsec (abfd)->vma = vma;
+  else
+    vma = obj_textsec (abfd)->vma;
+
+  pos += obj_textsec (abfd)->_raw_size;
+  vma += obj_textsec (abfd)->_raw_size;
+
+  /* Data.  */
+  if (!obj_datasec (abfd)->user_set_vma)
+    {
+#if 0	    /* ?? Does alignment in the file image really matter? */
+      pad = align_power (vma, obj_datasec (abfd)->alignment_power) - vma;
+#endif
+      obj_textsec (abfd)->_raw_size += pad;
+      pos += pad;
+      vma += pad;
+      obj_datasec (abfd)->vma = vma;
+    }
+  else
+    vma = obj_datasec (abfd)->vma;
+  obj_datasec (abfd)->filepos = pos;
+  pos += obj_datasec (abfd)->_raw_size;
+  vma += obj_datasec (abfd)->_raw_size;
+
+  /* BSS.  */
+  if (! obj_bsssec (abfd)->user_set_vma)
+    {
+#if 0
+      pad = align_power (vma, obj_bsssec (abfd)->alignment_power) - vma;
+#endif
+      obj_datasec (abfd)->_raw_size += pad;
+      pos += pad;
+      vma += pad;
+      obj_bsssec (abfd)->vma = vma;
+    }
+  else
+    {
+      /* The VMA of the .bss section is set by the the VMA of the
+         .data section plus the size of the .data section.  We may
+         need to add padding bytes to make this true.  */
+      pad = obj_bsssec (abfd)->vma - vma;
+      if (pad > 0)
+	{
+	  obj_datasec (abfd)->_raw_size += pad;
+	  pos += pad;
+	}
+    }
+  obj_bsssec (abfd)->filepos = pos;
+
+  /* Fix up the exec header.  */
+  execp->a_text = obj_textsec (abfd)->_raw_size;
+  execp->a_data = obj_datasec (abfd)->_raw_size;
+  execp->a_bss  = obj_bsssec (abfd)->_raw_size;
+  N_SET_MAGIC (*execp, OMAGIC);
+}
+
+static void
+adjust_z_magic (abfd, execp)
+     bfd *abfd;
+     struct internal_exec *execp;
+{
+  bfd_size_type data_pad, text_pad;
+  file_ptr text_end;
+  CONST struct aout_backend_data *abdp;
+  int ztih;			/* Nonzero if text includes exec header.  */
+  
+  abdp = aout_backend_info (abfd);
+
+  /* Text.  */
+  ztih = (abdp != NULL
+	  && (abdp->text_includes_header
+	      || obj_aout_subformat (abfd) == q_magic_format));
+  obj_textsec(abfd)->filepos = (ztih
+				? adata(abfd).exec_bytes_size
+				: adata(abfd).zmagic_disk_block_size);
+  if (! obj_textsec(abfd)->user_set_vma)
+    {
+      /* ?? Do we really need to check for relocs here?  */
+      obj_textsec(abfd)->vma = ((abfd->flags & HAS_RELOC)
+				? 0
+				: (ztih
+				   ? (abdp->default_text_vma
+				      + adata (abfd).exec_bytes_size)
+				   : abdp->default_text_vma));
+      text_pad = 0;
+    }
+  else
+    {
+      /* The .text section is being loaded at an unusual address.  We
+         may need to pad it such that the .data section starts at a page
+         boundary.  */
+      if (ztih)
+	text_pad = ((obj_textsec (abfd)->filepos - obj_textsec (abfd)->vma)
+		    & (adata (abfd).page_size - 1));
+      else
+	text_pad = ((- obj_textsec (abfd)->vma)
+		    & (adata (abfd).page_size - 1));
+    }
+
+  /* Find start of data.  */
+  if (ztih)
+    {
+      text_end = obj_textsec (abfd)->filepos + obj_textsec (abfd)->_raw_size;
+      text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
+    }
+  else
+    {
+      /* Note that if page_size == zmagic_disk_block_size, then
+	 filepos == page_size, and this case is the same as the ztih
+	 case.  */
+      text_end = obj_textsec (abfd)->_raw_size;
+      text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
+      text_end += obj_textsec (abfd)->filepos;
+    }
+
+  obj_textsec (abfd)->_raw_size += text_pad;
+  text_end += text_pad;
+
+  /* Data.  */
+  if (!obj_datasec(abfd)->user_set_vma)
+    {
+      bfd_vma vma;
+      vma = obj_textsec(abfd)->vma + obj_textsec(abfd)->_raw_size;
+      obj_datasec(abfd)->vma = BFD_ALIGN (vma, adata(abfd).segment_size);
+    }
+  if (abdp && abdp->zmagic_mapped_contiguous)
+    {
+      text_pad = (obj_datasec(abfd)->vma
+		  - obj_textsec(abfd)->vma
+		  - obj_textsec(abfd)->_raw_size);
+      obj_textsec(abfd)->_raw_size += text_pad;
+    }
+  obj_datasec (abfd)->filepos = (obj_textsec (abfd)->filepos
+				+ obj_textsec (abfd)->_raw_size);
+  
+  /* Fix up exec header while we're at it.  */
+  execp->a_text = obj_textsec(abfd)->_raw_size;
+  if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted)))
+    execp->a_text += adata(abfd).exec_bytes_size;
+  if (obj_aout_subformat (abfd) == q_magic_format)
+    N_SET_MAGIC (*execp, QMAGIC);
+  else
+    N_SET_MAGIC (*execp, ZMAGIC);
+
+  /* Spec says data section should be rounded up to page boundary.  */
+  obj_datasec(abfd)->_raw_size
+    = align_power (obj_datasec(abfd)->_raw_size,
+		   obj_bsssec(abfd)->alignment_power);
+  execp->a_data = BFD_ALIGN (obj_datasec(abfd)->_raw_size,
+			     adata(abfd).page_size);
+  data_pad = execp->a_data - obj_datasec(abfd)->_raw_size;
+
+  /* BSS.  */
+  if (!obj_bsssec(abfd)->user_set_vma)
+    obj_bsssec(abfd)->vma = (obj_datasec(abfd)->vma
+			     + obj_datasec(abfd)->_raw_size);
+  /* If the BSS immediately follows the data section and extra space
+     in the page is left after the data section, fudge data
+     in the header so that the bss section looks smaller by that
+     amount.  We'll start the bss section there, and lie to the OS.
+     (Note that a linker script, as well as the above assignment,
+     could have explicitly set the BSS vma to immediately follow
+     the data section.)  */
+  if (align_power (obj_bsssec(abfd)->vma, obj_bsssec(abfd)->alignment_power)
+      == obj_datasec(abfd)->vma + obj_datasec(abfd)->_raw_size)
+    execp->a_bss = (data_pad > obj_bsssec(abfd)->_raw_size) ? 0 :
+      obj_bsssec(abfd)->_raw_size - data_pad;
+  else
+    execp->a_bss = obj_bsssec(abfd)->_raw_size;
+}
+
+static void
+adjust_n_magic (abfd, execp)
+     bfd *abfd;
+     struct internal_exec *execp;
+{
+  file_ptr pos = adata(abfd).exec_bytes_size;
+  bfd_vma vma = 0;
+  int pad;
+  
+  /* Text.  */
+  obj_textsec(abfd)->filepos = pos;
+  if (!obj_textsec(abfd)->user_set_vma)
+    obj_textsec(abfd)->vma = vma;
+  else
+    vma = obj_textsec(abfd)->vma;
+  pos += obj_textsec(abfd)->_raw_size;
+  vma += obj_textsec(abfd)->_raw_size;
+
+  /* Data.  */
+  obj_datasec(abfd)->filepos = pos;
+  if (!obj_datasec(abfd)->user_set_vma)
+    obj_datasec(abfd)->vma = BFD_ALIGN (vma, adata(abfd).segment_size);
+  vma = obj_datasec(abfd)->vma;
+  
+  /* Since BSS follows data immediately, see if it needs alignment.  */
+  vma += obj_datasec(abfd)->_raw_size;
+  pad = align_power (vma, obj_bsssec(abfd)->alignment_power) - vma;
+  obj_datasec(abfd)->_raw_size += pad;
+  pos += obj_datasec(abfd)->_raw_size;
+
+  /* BSS.  */
+  if (!obj_bsssec(abfd)->user_set_vma)
+    obj_bsssec(abfd)->vma = vma;
+  else
+    vma = obj_bsssec(abfd)->vma;
+
+  /* Fix up exec header.  */
+  execp->a_text = obj_textsec(abfd)->_raw_size;
+  execp->a_data = obj_datasec(abfd)->_raw_size;
+  execp->a_bss = obj_bsssec(abfd)->_raw_size;
+  N_SET_MAGIC (*execp, NMAGIC);
+}
+
+boolean
+NAME(aout,adjust_sizes_and_vmas) (abfd, text_size, text_end)
+     bfd *abfd;
+     bfd_size_type *text_size;
+     file_ptr * text_end ATTRIBUTE_UNUSED;
+{
+  struct internal_exec *execp = exec_hdr (abfd);
+
+  if (! NAME(aout,make_sections) (abfd))
+    return false;
+
+  if (adata(abfd).magic != undecided_magic)
+    return true;
+
+  obj_textsec(abfd)->_raw_size =
+    align_power(obj_textsec(abfd)->_raw_size,
+		obj_textsec(abfd)->alignment_power);
+
+  *text_size = obj_textsec (abfd)->_raw_size;
+  /* Rule (heuristic) for when to pad to a new page.  Note that there
+     are (at least) two ways demand-paged (ZMAGIC) files have been
+     handled.  Most Berkeley-based systems start the text segment at
+     (TARGET_PAGE_SIZE).  However, newer versions of SUNOS start the text
+     segment right after the exec header; the latter is counted in the
+     text segment size, and is paged in by the kernel with the rest of
+     the text. */
+
+  /* This perhaps isn't the right way to do this, but made it simpler for me
+     to understand enough to implement it.  Better would probably be to go
+     right from BFD flags to alignment/positioning characteristics.  But the
+     old code was sloppy enough about handling the flags, and had enough
+     other magic, that it was a little hard for me to understand.  I think
+     I understand it better now, but I haven't time to do the cleanup this
+     minute.  */
+
+  if (abfd->flags & WP_TEXT)
+    adata(abfd).magic = n_magic;
+  else
+    adata(abfd).magic = o_magic;
+
+#ifdef BFD_AOUT_DEBUG /* requires gcc2 */
+#if __GNUC__ >= 2
+  fprintf (stderr, "%s text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x,%x>\n",
+	   ({ char *str;
+	      switch (adata(abfd).magic) {
+	      case n_magic: str = "NMAGIC"; break;
+	      case o_magic: str = "OMAGIC"; break;
+	      case z_magic: str = "ZMAGIC"; break;
+	      default: abort ();
+	      }
+	      str;
+	    }),
+	   obj_textsec(abfd)->vma, obj_textsec(abfd)->_raw_size,
+	   	obj_textsec(abfd)->alignment_power,
+	   obj_datasec(abfd)->vma, obj_datasec(abfd)->_raw_size,
+	   	obj_datasec(abfd)->alignment_power,
+	   obj_bsssec(abfd)->vma, obj_bsssec(abfd)->_raw_size,
+	   	obj_bsssec(abfd)->alignment_power);
+#endif
+#endif
+
+  switch (adata(abfd).magic)
+    {
+    case o_magic:
+      adjust_o_magic (abfd, execp);
+      break;
+    case z_magic:
+      adjust_z_magic (abfd, execp);
+      break;
+    case n_magic:
+      adjust_n_magic (abfd, execp);
+      break;
+    default:
+      abort ();
+    }
+
+#ifdef BFD_AOUT_DEBUG
+  fprintf (stderr, "       text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x>\n",
+	   obj_textsec(abfd)->vma, obj_textsec(abfd)->_raw_size,
+	   	obj_textsec(abfd)->filepos,
+	   obj_datasec(abfd)->vma, obj_datasec(abfd)->_raw_size,
+	   	obj_datasec(abfd)->filepos,
+	   obj_bsssec(abfd)->vma, obj_bsssec(abfd)->_raw_size);
+#endif
+
+  return true;
+}
+
+/*
+FUNCTION
+	aout_@var{size}_new_section_hook
+
+SYNOPSIS
+        boolean aout_@var{size}_new_section_hook,
+	   (bfd *abfd,
+	    asection *newsect));
+
+DESCRIPTION
+	Called by the BFD in response to a @code{bfd_make_section}
+	request.
+*/
+boolean
+NAME(aout,new_section_hook) (abfd, newsect)
+     bfd *abfd;
+     asection *newsect;
+{
+  /* align to double at least */
+  newsect->alignment_power = bfd_get_arch_info(abfd)->section_align_power;
+
+
+  if (bfd_get_format (abfd) == bfd_object)
+    {
+      if (obj_textsec (abfd) == NULL
+	  && ! strcmp (newsect->name, ".text"))
+	{
+	  obj_textsec(abfd)= newsect;
+	  newsect->target_index = N_TEXT;
+	  return true;
+	}
+
+    if (obj_datasec (abfd) == NULL
+	&& ! strcmp (newsect->name, ".data"))
+      {
+	obj_datasec (abfd) = newsect;
+	newsect->target_index = N_DATA;
+	return true;
+      }
+
+    if (obj_bsssec (abfd) == NULL
+	&& !strcmp (newsect->name, ".bss"))
+      {
+	obj_bsssec (abfd) = newsect;
+	newsect->target_index = N_BSS;
+	return true;
+      }
+  }
+
+  /* We allow more than three sections internally */
+  return true;
+}
+
+boolean
+NAME(aout,set_section_contents) (abfd, section, location, offset, count)
+     bfd *abfd;
+     sec_ptr section;
+     PTR location;
+     file_ptr offset;
+     bfd_size_type count;
+{
+  file_ptr text_end;
+  bfd_size_type text_size;
+
+  if (! abfd->output_has_begun)
+    {
+      if (! NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end))
+	return false;
+    }
+
+  if (section == obj_bsssec (abfd))
+    {
+      bfd_set_error (bfd_error_no_contents);
+      return false;
+    }
+
+  if (section != obj_textsec (abfd)
+      && section != obj_datasec (abfd))
+    {
+      (*_bfd_error_handler)
+	("%s: can not represent section `%s' in a.out object file format",
+	 bfd_get_filename (abfd), bfd_get_section_name (abfd, section));
+      bfd_set_error (bfd_error_nonrepresentable_section);
+      return false;
+    }
+
+  if (count != 0)
+    {
+      if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
+	  || bfd_write (location, 1, count, abfd) != count)
+	return false;
+    }
+
+  return true;
+}
+
+/* Read the external symbols from an a.out file.  */
+
+static boolean
+aout_get_external_symbols (abfd)
+     bfd *abfd;
+{
+  if (obj_aout_external_syms (abfd) == (struct external_nlist *) NULL)
+    {
+      bfd_size_type count;
+      struct external_nlist *syms;
+
+      count = exec_hdr (abfd)->a_syms / EXTERNAL_NLIST_SIZE;
+
+#ifdef USE_MMAP
+      if (bfd_get_file_window (abfd,
+			       obj_sym_filepos (abfd), exec_hdr (abfd)->a_syms,
+			       &obj_aout_sym_window (abfd), true) == false)
+	return false;
+      syms = (struct external_nlist *) obj_aout_sym_window (abfd).data;
+#else
+      /* We allocate using malloc to make the values easy to free
+	 later on.  If we put them on the objalloc it might not be
+	 possible to free them.  */
+      syms = ((struct external_nlist *)
+	      bfd_malloc ((size_t) count * EXTERNAL_NLIST_SIZE));
+      if (syms == (struct external_nlist *) NULL && count != 0)
+	return false;
+
+      if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
+	  || (bfd_read (syms, 1, exec_hdr (abfd)->a_syms, abfd)
+	      != exec_hdr (abfd)->a_syms))
+	{
+	  free (syms);
+	  return false;
+	}
+#endif
+
+      obj_aout_external_syms (abfd) = syms;
+      obj_aout_external_sym_count (abfd) = count;
+    }
+      
+  if (obj_aout_external_strings (abfd) == NULL
+      && exec_hdr (abfd)->a_syms != 0)
+    {
+      unsigned char string_chars[BYTES_IN_LONG];
+      bfd_size_type stringsize;
+      char *strings;
+
+      /* Get the size of the strings.  */
+      if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0
+	  || (bfd_read ((PTR) string_chars, BYTES_IN_LONG, 1, abfd) !=
+	      BYTES_IN_LONG))
+	return false;
+      stringsize = bfd_h_get_32 (abfd, string_chars);
+
+#ifdef USE_MMAP
+      if (bfd_get_file_window (abfd, obj_str_filepos (abfd), stringsize,
+			       &obj_aout_string_window (abfd), true) == false)
+	return false;
+      strings = (char *) obj_aout_string_window (abfd).data;
+#else
+      strings = (char *) bfd_malloc ((size_t) stringsize + 1);
+      if (strings == NULL)
+	return false;
+
+      /* Skip space for the string count in the buffer for convenience
+	 when using indexes.  */
+      if (bfd_read (strings + 4, 1, stringsize - 4, abfd) != stringsize - 4)
+	{
+	  free (strings);
+	  return false;
+	}
+#endif
+
+      /* Ensure that a zero index yields an empty string.  */
+      strings[0] = '\0';
+
+      strings[stringsize - 1] = 0;
+
+      obj_aout_external_strings (abfd) = strings;
+      obj_aout_external_string_size (abfd) = stringsize;
+    }
+
+  return true;
+}
+
+/* Translate an a.out symbol into a BFD symbol.  The desc, other, type
+   and symbol->value fields of CACHE_PTR will be set from the a.out
+   nlist structure.  This function is responsible for setting
+   symbol->flags and symbol->section, and adjusting symbol->value.  */
+
+static boolean
+translate_from_native_sym_flags (abfd, cache_ptr)
+     bfd *abfd;
+     aout_symbol_type *cache_ptr;
+{
+  flagword visible;
+
+  if (cache_ptr->type == N_FN)
+    {
+      asection *sec;
+
+      /* This is a debugging symbol.  */
+
+      cache_ptr->symbol.flags = BSF_DEBUGGING;
+
+      /* Work out the symbol section.  */
+      switch (cache_ptr->type & N_TYPE)
+	{
+	case N_TEXT:
+	case N_FN:
+	  sec = obj_textsec (abfd);
+	  break;
+	case N_DATA:
+	  sec = obj_datasec (abfd);
+	  break;
+	case N_BSS:
+	  sec = obj_bsssec (abfd);
+	  break;
+	default:
+	case N_ABS:
+	  sec = bfd_abs_section_ptr;
+	  break;
+	}
+
+      cache_ptr->symbol.section = sec;
+      cache_ptr->symbol.value -= sec->vma;
+
+      return true;
+    }
+
+  /* Get the default visibility.  This does not apply to all types, so
+     we just hold it in a local variable to use if wanted.  */
+  if ((cache_ptr->type & N_EXT) == 0)
+    visible = BSF_LOCAL;
+  else
+    visible = BSF_GLOBAL;
+
+  switch (cache_ptr->type)
+    {
+    default:
+    case N_ABS: case N_ABS | N_EXT:
+      cache_ptr->symbol.section = bfd_abs_section_ptr;
+      cache_ptr->symbol.flags = visible;
+      break;
+
+    case N_UNDF | N_EXT:
+      if (cache_ptr->symbol.value != 0)
+	{
+	  /* This is a common symbol.  */
+	  cache_ptr->symbol.flags = BSF_GLOBAL;
+	  cache_ptr->symbol.section = bfd_com_section_ptr;
+	}
+      else
+	{
+	  cache_ptr->symbol.flags = 0;
+	  cache_ptr->symbol.section = bfd_und_section_ptr;
+	}
+      break;
+
+    case N_TEXT: case N_TEXT | N_EXT:
+      cache_ptr->symbol.section = obj_textsec (abfd);
+      cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
+      cache_ptr->symbol.flags = visible;
+      break;
+
+    case N_DATA: case N_DATA | N_EXT:
+      cache_ptr->symbol.section = obj_datasec (abfd);
+      cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
+      cache_ptr->symbol.flags = visible;
+      break;
+
+    case N_BSS: case N_BSS | N_EXT:
+      cache_ptr->symbol.section = obj_bsssec (abfd);
+      cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
+      cache_ptr->symbol.flags = visible;
+      break;
+    }
+
+  return true;
+}
+
+/* Set the fields of SYM_POINTER according to CACHE_PTR.  */
+
+static boolean
+translate_to_native_sym_flags (abfd, cache_ptr, sym_pointer)
+     bfd *abfd;
+     asymbol *cache_ptr;
+     struct external_nlist *sym_pointer;
+{
+  bfd_vma value = cache_ptr->value;
+  asection *sec;
+  bfd_vma off;
+
+  /* Mask out any existing type bits in case copying from one section
+     to another.  */
+  sym_pointer->e_type[0] &= ~N_TYPE;
+
+  sec = bfd_get_section (cache_ptr);
+  off = 0;
+
+  if (sec == NULL)
+    {
+      /* This case occurs, e.g., for the *DEBUG* section of a COFF
+	 file.  */
+      (*_bfd_error_handler)
+	("%s: can not represent section for symbol `%s' in a.out object file format",
+	 bfd_get_filename (abfd), 
+	 cache_ptr->name != NULL ? cache_ptr->name : "*unknown*");
+      bfd_set_error (bfd_error_nonrepresentable_section);
+      return false;
+    }
+
+  if (sec->output_section != NULL)
+    {
+      off = sec->output_offset;
+      sec = sec->output_section;
+    }
+
+  if (bfd_is_abs_section (sec))
+    sym_pointer->e_type[0] |= N_ABS;
+  else if (sec == obj_textsec (abfd))
+    sym_pointer->e_type[0] |= N_TEXT;
+  else if (sec == obj_datasec (abfd))
+    sym_pointer->e_type[0] |= N_DATA;
+  else if (sec == obj_bsssec (abfd))
+    sym_pointer->e_type[0] |= N_BSS;
+  else if (bfd_is_und_section (sec))
+    sym_pointer->e_type[0] = N_UNDF | N_EXT;
+  else if (bfd_is_com_section (sec))
+    sym_pointer->e_type[0] = N_UNDF | N_EXT;
+  else
+    {
+      (*_bfd_error_handler)
+	("%s: can not represent section `%s' in a.out object file format",
+	 bfd_get_filename (abfd), bfd_get_section_name (abfd, sec));
+      bfd_set_error (bfd_error_nonrepresentable_section);
+      return false;
+    }
+
+  /* Turn the symbol from section relative to absolute again */
+  value += sec->vma + off;
+
+  if ((cache_ptr->flags & BSF_DEBUGGING) != 0)
+    sym_pointer->e_type[0] = ((aout_symbol_type *) cache_ptr)->type;
+  else if ((cache_ptr->flags & BSF_GLOBAL) != 0)
+    sym_pointer->e_type[0] |= N_EXT;
+
+#if 0
+  if ((cache_ptr->flags & BSF_CONSTRUCTOR) != 0)
+    {
+      int type = ((aout_symbol_type *) cache_ptr)->type;
+
+
+      switch (type)
+	{
+	case N_ABS:	type = N_SETA; break;
+	case N_TEXT:	type = N_SETT; break;
+	case N_DATA:	type = N_SETD; break;
+	case N_BSS:	type = N_SETB; break;
+	}
+      sym_pointer->e_type[0] = type;
+    }
+#endif
+
+#if 0
+  if ((cache_ptr->flags & BSF_WEAK) != 0)
+    {
+      int type;
+
+      switch (sym_pointer->e_type[0] & N_TYPE)
+	{
+	default:
+	case N_ABS:	type = N_WEAKA; break;
+	case N_TEXT:	type = N_WEAKT; break;
+	case N_DATA:	type = N_WEAKD; break;
+	case N_BSS:	type = N_WEAKB; break;
+	case N_UNDF:	type = N_WEAKU; break;
+	}
+      sym_pointer->e_type[0] = type;
+    }
+#endif
+
+  PUT_WORD(abfd, value, sym_pointer->e_value);
+
+  return true;
+}
+
+/* Native-level interface to symbols. */
+
+asymbol *
+NAME(aout,make_empty_symbol) (abfd)
+     bfd *abfd;
+{
+  aout_symbol_type  *new =
+    (aout_symbol_type *)bfd_zalloc (abfd, sizeof (aout_symbol_type));
+  if (!new)
+    return NULL;
+  new->symbol.the_bfd = abfd;
+
+  return &new->symbol;
+}
+
+/* Translate a set of internal symbols into external symbols.  */
+
+boolean
+NAME(aout,translate_symbol_table) (abfd, in, ext, count, str, strsize, dynamic)
+     bfd *abfd;
+     aout_symbol_type *in;
+     struct external_nlist *ext;
+     bfd_size_type count;
+     char *str;
+     bfd_size_type strsize;
+     boolean dynamic;
+{
+  struct external_nlist *ext_end;
+
+  ext_end = ext + count;
+  for (; ext < ext_end; ext++, in++)
+    {
+      bfd_vma x;
+
+      x = GET_WORD (abfd, ext->e_strx);
+      in->symbol.the_bfd = abfd;
+
+      /* For the normal symbols, the zero index points at the number
+	 of bytes in the string table but is to be interpreted as the
+	 null string.  For the dynamic symbols, the number of bytes in
+	 the string table is stored in the __DYNAMIC structure and the
+	 zero index points at an actual string.  */
+      if (x == 0 && ! dynamic)
+	in->symbol.name = "";
+      else if (x < strsize)
+	in->symbol.name = str + x;
+      else
+	return false;
+
+      in->symbol.value = GET_SWORD (abfd,  ext->e_value);
+      /* TODO: is 0 a safe value here? */
+      in->desc = 0;
+      in->other = 0;
+      in->type = bfd_h_get_8 (abfd,  ext->e_type);
+      in->symbol.udata.p = NULL;
+
+      if (! translate_from_native_sym_flags (abfd, in))
+	return false;
+
+      if (dynamic)
+	in->symbol.flags |= BSF_DYNAMIC;
+    }
+
+  return true;
+}
+
+/* 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. */
+
+boolean
+NAME(aout,slurp_symbol_table) (abfd)
+     bfd *abfd;
+{
+  struct external_nlist *old_external_syms;
+  aout_symbol_type *cached;
+  size_t cached_size;
+
+  /* If there's no work to be done, don't do any */
+  if (obj_aout_symbols (abfd) != (aout_symbol_type *) NULL)
+    return true;
+
+  old_external_syms = obj_aout_external_syms (abfd);
+
+  if (! aout_get_external_symbols (abfd))
+    return false;
+
+  cached_size = (obj_aout_external_sym_count (abfd)
+		 * sizeof (aout_symbol_type));
+  cached = (aout_symbol_type *) bfd_malloc (cached_size);
+  if (cached == NULL && cached_size != 0)
+    return false;
+  if (cached_size != 0)
+    memset (cached, 0, cached_size);
+
+  /* Convert from external symbol information to internal.  */
+  if (! (NAME(aout,translate_symbol_table)
+	 (abfd, cached,
+	  obj_aout_external_syms (abfd),
+	  obj_aout_external_sym_count (abfd),
+	  obj_aout_external_strings (abfd),
+	  obj_aout_external_string_size (abfd),
+	  false)))
+    {
+      free (cached);
+      return false;
+    }
+
+  bfd_get_symcount (abfd) = obj_aout_external_sym_count (abfd);
+
+  obj_aout_symbols (abfd) = cached;
+
+  /* It is very likely that anybody who calls this function will not
+     want the external symbol information, so if it was allocated
+     because of our call to aout_get_external_symbols, we free it up
+     right away to save space.  */
+  if (old_external_syms == (struct external_nlist *) NULL
+      && obj_aout_external_syms (abfd) != (struct external_nlist *) NULL)
+    {
+#ifdef USE_MMAP
+      bfd_free_window (&obj_aout_sym_window (abfd));
+#else
+      free (obj_aout_external_syms (abfd));
+#endif
+      obj_aout_external_syms (abfd) = NULL;
+    }
+
+  return true;
+}
+
+/* We use a hash table when writing out symbols so that we only write
+   out a particular string once.  This helps particularly when the
+   linker writes out stabs debugging entries, because each different
+   contributing object file tends to have many duplicate stabs
+   strings.
+
+   This hash table code breaks dbx on SunOS 4.1.3, so we don't do it
+   if BFD_TRADITIONAL_FORMAT is set.  */
+
+static bfd_size_type add_to_stringtab
+  PARAMS ((bfd *, struct bfd_strtab_hash *, const char *, boolean));
+static boolean emit_stringtab PARAMS ((bfd *, struct bfd_strtab_hash *));
+
+/* Get the index of a string in a strtab, adding it if it is not
+   already present.  */
+
+static INLINE bfd_size_type
+add_to_stringtab (abfd, tab, str, copy)
+     bfd *abfd;
+     struct bfd_strtab_hash *tab;
+     const char *str;
+     boolean copy;
+{
+  boolean hash;
+  bfd_size_type index;
+
+  /* An index of 0 always means the empty string.  */
+  if (str == 0 || *str == '\0')
+    return 0;
+
+  /* Don't hash if BFD_TRADITIONAL_FORMAT is set, because SunOS dbx
+     doesn't understand a hashed string table.  */
+  hash = true;
+  if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
+    hash = false;
+
+  index = _bfd_stringtab_add (tab, str, hash, copy);
+
+  if (index != (bfd_size_type) -1)
+    {
+      /* Add BYTES_IN_LONG to the return value to account for the
+	 space taken up by the string table size.  */
+      index += BYTES_IN_LONG;
+    }
+
+  return index;
+}
+
+/* Write out a strtab.  ABFD is already at the right location in the
+   file.  */
+
+static boolean
+emit_stringtab (abfd, tab)
+     register bfd *abfd;
+     struct bfd_strtab_hash *tab;
+{
+  bfd_byte buffer[BYTES_IN_LONG];
+
+  /* The string table starts with the size.  */
+  bfd_h_put_32 (abfd, _bfd_stringtab_size (tab) + BYTES_IN_LONG, buffer);
+  if (bfd_write ((PTR) buffer, 1, BYTES_IN_LONG, abfd) != BYTES_IN_LONG)
+    return false;
+
+  return _bfd_stringtab_emit (abfd, tab);
+}
+
+boolean
+NAME(aout,write_syms) (abfd)
+     bfd *abfd;
+{
+  unsigned int count ;
+  asymbol **generic = bfd_get_outsymbols (abfd);
+  struct bfd_strtab_hash *strtab;
+
+  strtab = _bfd_stringtab_init ();
+  if (strtab == NULL)
+    return false;
+
+  for (count = 0; count < bfd_get_symcount (abfd); count++)
+    {
+      asymbol *g = generic[count];
+      bfd_size_type indx;
+      struct external_nlist nsp;
+
+      PUT_WORD (abfd, 0, (bfd_byte *)nsp.e_unused);
+
+      indx = add_to_stringtab (abfd, strtab, g->name, false);
+      if (indx == (bfd_size_type) -1)
+	goto error_return;
+      PUT_WORD (abfd, indx, (bfd_byte *) nsp.e_strx);
+
+      if (bfd_asymbol_flavour(g) == abfd->xvec->flavour)
+	bfd_h_put_8 (abfd, aout_symbol(g)->type,  nsp.e_type);
+      else
+	bfd_h_put_8 (abfd, 0, nsp.e_type);
+
+      if (! translate_to_native_sym_flags (abfd, g, &nsp))
+	goto error_return;
+
+      bfd_h_put_8 (abfd, 0, nsp.e_ovly);
+
+      if (bfd_write((PTR)&nsp,1,EXTERNAL_NLIST_SIZE, abfd)
+	  != EXTERNAL_NLIST_SIZE)
+	goto error_return;
+
+      /* NB: `KEEPIT' currently overlays `udata.p', so set this only
+	 here, at the end.  */
+      g->KEEPIT = count;
+    }
+
+  if (! emit_stringtab (abfd, strtab))
+    goto error_return;
+
+  _bfd_stringtab_free (strtab);
+
+  return true;
+
+error_return:
+  _bfd_stringtab_free (strtab);
+  return false;
+}
+
+
+long
+NAME(aout,get_symtab) (abfd, location)
+     bfd *abfd;
+     asymbol **location;
+{
+    unsigned int counter = 0;
+    aout_symbol_type *symbase;
+
+    if (!NAME(aout,slurp_symbol_table)(abfd))
+      return -1;
+
+    for (symbase = obj_aout_symbols(abfd); counter++ < bfd_get_symcount (abfd);)
+      *(location++) = (asymbol *)( symbase++);
+    *location++ =0;
+    return bfd_get_symcount (abfd);
+}
+
+
+/* Standard reloc stuff */
+
+/* Extended stuff */
+/* Output extended relocation information to a file in target byte order. */
+
+void
+pdp11_aout_swap_reloc_out (abfd, g, natptr)
+     bfd *abfd;
+     arelent *g;
+     register struct pdp11_aout_reloc_external *natptr;
+{
+  int r_index;
+  int r_pcrel;
+  int reloc_entry;
+  int r_type;
+  asymbol *sym = *(g->sym_ptr_ptr);
+  asection *output_section = sym->section->output_section;
+
+  if (g->addend != 0)
+    fprintf (stderr, "BFD: can't do this reloc addend stuff\n");
+
+  r_pcrel = g->howto->pc_relative;
+
+  if (bfd_is_abs_section (output_section))
+    r_type = RABS;
+  else if (output_section == obj_textsec (abfd))
+    r_type = RTEXT;
+  else if (output_section == obj_datasec (abfd))
+    r_type = RDATA;
+  else if (output_section == obj_bsssec (abfd))
+    r_type = RBSS;
+  else if (bfd_is_und_section (output_section))
+    r_type = REXT;
+  else if (bfd_is_com_section (output_section))
+    r_type = REXT;
+  else
+    r_type = -1;
+
+  BFD_ASSERT (r_type != -1);
+
+  if (r_type == RABS)
+    r_index = 0;
+  else
+    r_index = (*(g->sym_ptr_ptr))->KEEPIT;
+
+#if 0
+  if (bfd_is_abs_section (bfd_get_section (sym)))
+    {
+      r_extern = 0;
+      r_index = N_ABS;
+      r_type = RABS;
+    }
+  else if ((sym->flags & BSF_SECTION_SYM) == 0)
+    {
+      if (bfd_is_und_section (bfd_get_section (sym))
+	  || (sym->flags & BSF_GLOBAL) != 0)
+	r_extern = 1;
+      else
+	r_extern = 0;
+      r_index = (*(g->sym_ptr_ptr))->KEEPIT;
+    }
+  else
+    {
+      /* Just an ordinary section */
+      r_extern = 0;
+      r_index = output_section->target_index;
+    }
+#endif
+
+  reloc_entry = r_index << 4 | r_type | r_pcrel;
+
+  PUT_WORD (abfd, reloc_entry, natptr->e_reloc_entry);
+}
+
+/* BFD deals internally with all things based from the section they're
+   in. so, something in 10 bytes into a text section  with a base of
+   50 would have a symbol (.text+10) and know .text vma was 50.
+
+   Aout keeps all it's symbols based from zero, so the symbol would
+   contain 60. This macro subs the base of each section from the value
+   to give the true offset from the section */
+
+
+#define MOVE_ADDRESS(ad)       						\
+  if (r_extern) 							\
+    {									\
+      /* Undefined symbol.  */						\
+      cache_ptr->sym_ptr_ptr = symbols + r_index;			\
+      cache_ptr->addend = ad;						\
+    }									\
+  else									\
+    {									\
+      /* Defined, section relative. replace symbol with pointer to    	\
+	 symbol which points to section.  */				\
+      switch (r_index)							\
+	{								\
+	case N_TEXT:							\
+	case N_TEXT | N_EXT:						\
+	  cache_ptr->sym_ptr_ptr  = obj_textsec (abfd)->symbol_ptr_ptr;	\
+	  cache_ptr->addend = ad  - su->textsec->vma;			\
+	  break;							\
+	case N_DATA:							\
+	case N_DATA | N_EXT:						\
+	  cache_ptr->sym_ptr_ptr  = obj_datasec (abfd)->symbol_ptr_ptr;	\
+	  cache_ptr->addend = ad - su->datasec->vma;			\
+	  break;							\
+	case N_BSS:							\
+	case N_BSS | N_EXT:						\
+	  cache_ptr->sym_ptr_ptr  = obj_bsssec (abfd)->symbol_ptr_ptr;	\
+	  cache_ptr->addend = ad - su->bsssec->vma;			\
+	  break;							\
+	default:							\
+	case N_ABS:							\
+	case N_ABS | N_EXT:						\
+	  cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;	\
+	  cache_ptr->addend = ad;					\
+	  break;							\
+	}								\
+    }     								
+
+void
+pdp11_aout_swap_reloc_in (abfd, bytes, cache_ptr, offset,
+			  symbols, symcount)
+     bfd *abfd;
+     struct pdp11_aout_reloc_external *bytes;
+     arelent *cache_ptr;
+     bfd_size_type offset;
+     asymbol **symbols;
+     bfd_size_type symcount;
+{
+  struct aoutdata *su = &(abfd->tdata.aout_data->a);
+  unsigned int r_index;
+  int reloc_entry;
+  int r_extern;
+  int r_pcrel;
+
+  reloc_entry = GET_WORD (abfd, (PTR)bytes);
+
+  r_pcrel = reloc_entry & RELFLG;
+
+  cache_ptr->address = offset;
+  cache_ptr->howto = howto_table_pdp11 + (r_pcrel ? 1 : 0);
+
+  if ((reloc_entry & RTYPE) == RABS)
+    r_index = N_ABS;
+  else
+    r_index = RINDEX (reloc_entry);
+
+  /* r_extern reflects whether the symbol the reloc is against is
+     local or global.  */
+  r_extern = (reloc_entry & RTYPE) == REXT;
+
+  if (r_extern && r_index > symcount)
+    {
+      /* We could arrange to return an error, but it might be useful
+         to see the file even if it is bad.  */
+      r_extern = 0;
+      r_index = N_ABS;
+    }
+
+  MOVE_ADDRESS(0);
+}
+
+/* Read and swap the relocs for a section.  */
+
+boolean
+NAME(aout,slurp_reloc_table) (abfd, asect, symbols)
+     bfd *abfd;
+     sec_ptr asect;
+     asymbol **symbols;
+{
+  struct pdp11_aout_reloc_external *rptr;
+  unsigned int count;
+  bfd_size_type reloc_size;
+  PTR relocs;
+  arelent *reloc_cache;
+  size_t each_size;
+  unsigned int counter = 0;
+  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;
+  else if (asect == obj_textsec (abfd))
+    reloc_size = exec_hdr(abfd)->a_trsize;
+  else if (asect == obj_bsssec (abfd))
+    reloc_size = 0;
+  else
+    {
+      bfd_set_error (bfd_error_invalid_operation);
+      return false;
+    }
+
+  if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0)
+    return false;
+
+  each_size = obj_reloc_entry_size (abfd);
+
+  relocs = bfd_malloc ((size_t) reloc_size);
+  if (relocs == NULL && reloc_size != 0)
+    return false;
+
+  if (bfd_read (relocs, 1, reloc_size, abfd) != reloc_size)
+    {
+      free (relocs);
+      return false;
+    }
+
+  count = reloc_size / each_size;
+
+  /* Count the number of NON-ZERO relocs, this is the count we want. */
+  {
+    unsigned int real_count = 0;
+
+    for (counter = 0; counter < count; counter++)
+      {
+	int x;
+
+	x = GET_WORD (abfd, relocs + each_size * counter);
+	if (x != 0)
+	  real_count++;
+      }
+
+    count = real_count;
+  }
+
+  reloc_cache = (arelent *) bfd_malloc ((size_t) (count * sizeof (arelent)));
+  if (reloc_cache == NULL && count != 0)
+    return false;
+  memset (reloc_cache, 0, count * sizeof (arelent));
+
+  cache_ptr = reloc_cache;
+
+  rptr = (struct pdp11_aout_reloc_external *) relocs;
+  for (counter = 0;
+       counter < count;
+       counter++, ((char *)rptr) += RELOC_SIZE, cache_ptr++)
+    {
+      while (GET_WORD (abfd, (PTR)rptr) == 0)
+	{
+	  rptr =
+	    (struct pdp11_aout_reloc_external *)
+	    ((char *)rptr + RELOC_SIZE);
+	  if ((char *)rptr >= (char *)relocs + reloc_size)
+	    goto done;
+	}
+
+      pdp11_aout_swap_reloc_in (abfd, rptr, cache_ptr,
+				(char *)rptr - (char *)relocs,
+				    symbols, bfd_get_symcount (abfd));
+    }
+ done:
+  /* Just in case, if rptr >= relocs + reloc_size should happen
+     too early. */
+  BFD_ASSERT (counter == count);
+
+  free (relocs);
+
+  asect->relocation = reloc_cache;
+  asect->reloc_count = cache_ptr - reloc_cache;
+
+  return true;
+}
+
+/* Write out a relocation section into an object file.  */
+
+boolean
+NAME(aout,squirt_out_relocs) (abfd, section)
+     bfd *abfd;
+     asection *section;
+{
+  arelent **generic;
+  unsigned char *native;
+  unsigned int count = section->reloc_count;
+  size_t natsize;
+
+#if 0
+  /* If we're writing an .o file, we must write
+     relocation information, even if there is none. */
+  if ((count == 0 || section->orelocation == NULL) &&
+      <writing_executable>)
+    return true;
+#endif
+
+  natsize = bfd_get_section_size_before_reloc (section);
+  native = (unsigned char *) bfd_zalloc (abfd, natsize);
+  if (!native)
+    return false;
+
+  memset ((PTR)native, 0, natsize);
+
+  generic = section->orelocation;
+  if (generic != NULL)
+    {
+      while (count > 0)
+	{
+	  struct pdp11_aout_reloc_external *r;
+
+	  r = (struct pdp11_aout_reloc_external *)
+	    (native + (*generic)->address);
+	  pdp11_aout_swap_reloc_out (abfd, *generic, r);
+	  count--;
+	  generic++;
+	}
+    }
+
+  if (bfd_write ((PTR) native, 1, natsize, abfd) != natsize)
+    {
+      bfd_release(abfd, native);
+      return false;
+    }
+
+  bfd_release (abfd, native);
+
+  return true;
+}
+
+/* This is stupid.  This function should be a boolean predicate */
+long
+NAME(aout,canonicalize_reloc) (abfd, section, relptr, symbols)
+     bfd *abfd;
+     sec_ptr section;
+     arelent **relptr;
+     asymbol **symbols;
+{
+  arelent *tblptr = section->relocation;
+  unsigned int count;
+
+  if (section == obj_bsssec (abfd))
+    {
+      *relptr = NULL;
+      return 0;
+    }
+
+  if (!(tblptr || NAME(aout,slurp_reloc_table)(abfd, section, symbols)))
+    return -1;
+
+  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;
+
+      for (count = 0; count++ < section->reloc_count;)
+	*relptr++ = tblptr++;
+    }
+
+  *relptr = 0;
+
+  return section->reloc_count;
+}
+
+long
+NAME(aout,get_reloc_upper_bound) (abfd, asect)
+     bfd *abfd;
+     sec_ptr asect;
+{
+  if (bfd_get_format (abfd) != bfd_object)
+    {
+      bfd_set_error (bfd_error_invalid_operation);
+      return -1;
+    }
+
+  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 / obj_reloc_entry_size (abfd))
+	       + 1));
+
+  if (asect == obj_textsec (abfd))
+    return (sizeof (arelent *)
+	    * ((exec_hdr(abfd)->a_trsize / obj_reloc_entry_size (abfd))
+	       + 1));
+
+  /* TODO: why are there two if statements for obj_bsssec()? */
+
+  if (asect == obj_bsssec (abfd))
+    return sizeof (arelent *);
+
+  if (asect == obj_bsssec (abfd))
+    return 0;
+
+  bfd_set_error (bfd_error_invalid_operation);
+  return -1;
+}
+
+
+long
+NAME(aout,get_symtab_upper_bound) (abfd)
+     bfd *abfd;
+{
+  if (!NAME(aout,slurp_symbol_table)(abfd))
+    return -1;
+
+  return (bfd_get_symcount (abfd) + 1) * (sizeof (aout_symbol_type *));
+}
+
+alent *
+NAME(aout,get_lineno) (abfd, symbol)
+     bfd * abfd ATTRIBUTE_UNUSED;
+     asymbol * symbol ATTRIBUTE_UNUSED;
+{
+  return (alent *)NULL;
+}
+
+void
+NAME(aout,get_symbol_info) (abfd, symbol, ret)
+     bfd * abfd ATTRIBUTE_UNUSED;
+     asymbol *symbol;
+     symbol_info *ret;
+{
+  bfd_symbol_info (symbol, ret);
+
+  if (ret->type == '?')
+    {
+      int type_code = aout_symbol(symbol)->type & 0xff;
+      const char *stab_name = bfd_get_stab_name (type_code);
+      static char buf[10];
+
+      if (stab_name == NULL)
+	{
+	  sprintf(buf, "(%d)", type_code);
+	  stab_name = buf;
+	}
+      ret->type = '-';
+      ret->stab_type = type_code;
+      ret->stab_other = (unsigned)(aout_symbol(symbol)->other & 0xff);
+      ret->stab_desc = (unsigned)(aout_symbol(symbol)->desc & 0xffff);
+      ret->stab_name = stab_name;
+    }
+}
+
+/*ARGSUSED*/
+void
+NAME(aout,print_symbol) (abfd, afile, symbol, how)
+     bfd * abfd ATTRIBUTE_UNUSED;
+     PTR afile;
+     asymbol *symbol;
+     bfd_print_symbol_type how;
+{
+  FILE *file = (FILE *)afile;
+
+  switch (how)
+    {
+    case bfd_print_symbol_name:
+      if (symbol->name)
+	fprintf(file,"%s", symbol->name);
+      break;
+    case bfd_print_symbol_more:
+      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:
+      {
+	CONST char *section_name = symbol->section->name;
+
+	bfd_print_symbol_vandf ((PTR)file,symbol);
+
+	fprintf (file," %-5s %04x %02x %02x",
+		 section_name,
+		 (unsigned)(aout_symbol(symbol)->desc & 0xffff),
+		 (unsigned)(aout_symbol(symbol)->other & 0xff),
+		 (unsigned)(aout_symbol(symbol)->type  & 0xff));
+	if (symbol->name)
+	  fprintf(file," %s", symbol->name);
+      }
+      break;
+    }
+}
+
+/* If we don't have to allocate more than 1MB to hold the generic
+   symbols, we use the generic minisymbol method: it's faster, since
+   it only translates the symbols once, not multiple times.  */
+#define MINISYM_THRESHOLD (1000000 / sizeof (asymbol))
+
+/* Read minisymbols.  For minisymbols, we use the unmodified a.out
+   symbols.  The minisymbol_to_symbol function translates these into
+   BFD asymbol structures.  */
+
+long
+NAME(aout,read_minisymbols) (abfd, dynamic, minisymsp, sizep)
+     bfd *abfd;
+     boolean dynamic;
+     PTR *minisymsp;
+     unsigned int *sizep;
+{
+  if (dynamic)
+    {
+      /* We could handle the dynamic symbols here as well, but it's
+         easier to hand them off.  */
+      return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
+    }
+
+  if (! aout_get_external_symbols (abfd))
+    return -1;
+
+  if (obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
+    return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
+
+  *minisymsp = (PTR) obj_aout_external_syms (abfd);
+
+  /* By passing the external symbols back from this routine, we are
+     giving up control over the memory block.  Clear
+     obj_aout_external_syms, so that we do not try to free it
+     ourselves.  */
+  obj_aout_external_syms (abfd) = NULL;
+
+  *sizep = EXTERNAL_NLIST_SIZE;
+  return obj_aout_external_sym_count (abfd);
+}
+
+/* Convert a minisymbol to a BFD asymbol.  A minisymbol is just an
+   unmodified a.out symbol.  The SYM argument is a structure returned
+   by bfd_make_empty_symbol, which we fill in here.  */
+
+asymbol *
+NAME(aout,minisymbol_to_symbol) (abfd, dynamic, minisym, sym)
+     bfd *abfd;
+     boolean dynamic;
+     const PTR minisym;
+     asymbol *sym;
+{
+  if (dynamic
+      || obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
+    return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym);
+
+  memset (sym, 0, sizeof (aout_symbol_type));
+
+  /* We call translate_symbol_table to translate a single symbol.  */
+  if (! (NAME(aout,translate_symbol_table)
+	 (abfd,
+	  (aout_symbol_type *) sym,
+	  (struct external_nlist *) minisym,
+	  (bfd_size_type) 1,
+	  obj_aout_external_strings (abfd),
+	  obj_aout_external_string_size (abfd),
+	  false)))
+    return NULL;
+
+  return sym;
+}
+
+/*
+ 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
+NAME(aout,find_nearest_line)
+     (abfd, section, symbols, offset, filename_ptr, functionname_ptr, line_ptr)
+     bfd *abfd;
+     asection *section;
+     asymbol **symbols;
+     bfd_vma offset;
+     CONST char **filename_ptr;
+     CONST char **functionname_ptr;
+     unsigned int *line_ptr;
+{
+  /* Run down the file looking for the filename, function and linenumber */
+  asymbol **p;
+  CONST char *directory_name = NULL;
+  CONST char *main_file_name = NULL;
+  CONST char *current_file_name = NULL;
+  CONST char *line_file_name = NULL; /* Value of current_file_name at line number. */
+  bfd_vma low_line_vma = 0;
+  bfd_vma low_func_vma = 0;
+  asymbol *func = 0;
+  size_t filelen, funclen;
+  char *buf;
+
+  *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);
+	next:
+	  switch (q->type)
+	    {
+	    case N_TEXT:
+	      /* If this looks like a file name symbol, and it comes after
+		 the line number we have found so far, but before the
+		 offset, then we have probably not found the right line
+		 number.  */
+	      if (q->symbol.value <= offset
+		  && ((q->symbol.value > low_line_vma
+		       && (line_file_name != NULL
+			   || *line_ptr != 0))
+		      || (q->symbol.value > low_func_vma
+			  && func != NULL)))
+		{
+		  const char * symname;
+
+		  symname = q->symbol.name;
+		  if (strcmp (symname + strlen (symname) - 2, ".o") == 0)
+		    {
+		      if (q->symbol.value > low_line_vma)
+			{
+			  *line_ptr = 0;
+			  line_file_name = NULL;
+			}
+		      if (q->symbol.value > low_func_vma)
+			func = NULL;
+		    }
+		}
+	      break;
+
+	    case N_SO:
+	      /* If this symbol is less than the offset, but greater than
+		 the line number we have found so far, then we have not
+		 found the right line number.  */
+	      if (q->symbol.value <= offset)
+		{
+		  if (q->symbol.value > low_line_vma)
+		    {
+		      *line_ptr = 0;
+		      line_file_name = NULL;
+		    }
+		  if (q->symbol.value > low_func_vma)
+		    func = NULL;
+		}
+
+	      main_file_name = current_file_name = q->symbol.name;
+	      /* Look ahead to next symbol to check if that too is an N_SO. */
+	      p++;
+	      if (*p == NULL)
+		break;
+	      q = (aout_symbol_type *)(*p);
+	      if (q->type != (int)N_SO)
+		goto next;
+
+	      /* Found a second N_SO  First is directory; second is filename. */
+	      directory_name = current_file_name;
+	      main_file_name = current_file_name = q->symbol.name;
+	      if (obj_textsec(abfd) != section)
+		goto done;
+	      break;
+	    case N_SOL:
+	      current_file_name = q->symbol.name;
+	      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 >= low_line_vma
+		  && q->symbol.value <= offset)
+		{
+		  *line_ptr = q->desc;
+		  low_line_vma = q->symbol.value;
+		  line_file_name = current_file_name;
+		}
+	      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;
+		  }
+		else if (q->symbol.value > offset)
+		  goto done;
+	      }
+	      break;
+	    }
+	}
+    }
+
+ done:
+  if (*line_ptr != 0)
+    main_file_name = line_file_name;
+
+  if (main_file_name == NULL
+      || main_file_name[0] == '/'
+      || directory_name == NULL)
+    filelen = 0;
+  else
+    filelen = strlen (directory_name) + strlen (main_file_name);
+  if (func == NULL)
+    funclen = 0;
+  else
+    funclen = strlen (bfd_asymbol_name (func));
+
+  if (adata (abfd).line_buf != NULL)
+    free (adata (abfd).line_buf);
+  if (filelen + funclen == 0)
+    adata (abfd).line_buf = buf = NULL;
+  else
+    {
+      buf = (char *) bfd_malloc (filelen + funclen + 3);
+      adata (abfd).line_buf = buf;
+      if (buf == NULL)
+	return false;
+    }
+
+  if (main_file_name != NULL)
+    {
+      if (main_file_name[0] == '/' || directory_name == NULL)
+	*filename_ptr = main_file_name;
+      else
+	{
+	  sprintf (buf, "%s%s", directory_name, main_file_name);
+	  *filename_ptr = buf;
+	  buf += filelen + 1;
+	}
+    }
+
+  if (func)
+    {
+      const char *function = func->name;
+      char *p;
+
+      /* The caller expects a symbol name.  We actually have a
+	 function name, without the leading underscore.  Put the
+	 underscore back in, so that the caller gets a symbol name.  */
+      if (bfd_get_symbol_leading_char (abfd) == '\0')
+	strcpy (buf, function);
+      else
+	{
+	  buf[0] = bfd_get_symbol_leading_char (abfd);
+	  strcpy (buf + 1, function);
+	}
+
+      /* Have to remove : stuff.  */
+      p = strchr (buf, ':');
+      if (p != NULL)
+	*p = '\0';
+      *functionname_ptr = buf;
+    }
+
+  return true;
+}
+
+int
+NAME(aout,sizeof_headers) (abfd, execable)
+     bfd *abfd;
+     boolean execable ATTRIBUTE_UNUSED;
+{
+  return adata(abfd).exec_bytes_size;
+}
+
+/* Free all information we have cached for this BFD.  We can always
+   read it again later if we need it.  */
+
+boolean
+NAME(aout,bfd_free_cached_info) (abfd)
+     bfd *abfd;
+{
+  asection *o;
+
+  if (bfd_get_format (abfd) != bfd_object)
+    return true;
+
+#define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; }
+  BFCI_FREE (obj_aout_symbols (abfd));
+#ifdef USE_MMAP
+  obj_aout_external_syms (abfd) = 0;
+  bfd_free_window (&obj_aout_sym_window (abfd));
+  bfd_free_window (&obj_aout_string_window (abfd));
+  obj_aout_external_strings (abfd) = 0;
+#else
+  BFCI_FREE (obj_aout_external_syms (abfd));
+  BFCI_FREE (obj_aout_external_strings (abfd));
+#endif
+  for (o = abfd->sections; o != (asection *) NULL; o = o->next)
+    BFCI_FREE (o->relocation);
+#undef BFCI_FREE
+
+  return true;
+}
+
+/* a.out link code.  */
+
+static boolean aout_link_add_object_symbols
+  PARAMS ((bfd *, struct bfd_link_info *));
+static boolean aout_link_check_archive_element
+  PARAMS ((bfd *, struct bfd_link_info *, boolean *));
+static boolean aout_link_free_symbols PARAMS ((bfd *));
+static boolean aout_link_check_ar_symbols
+  PARAMS ((bfd *, struct bfd_link_info *, boolean *pneeded));
+static boolean aout_link_add_symbols
+  PARAMS ((bfd *, struct bfd_link_info *));
+
+/* Routine to create an entry in an a.out link hash table.  */
+
+struct bfd_hash_entry *
+NAME(aout,link_hash_newfunc) (entry, table, string)
+     struct bfd_hash_entry *entry;
+     struct bfd_hash_table *table;
+     const char *string;
+{
+  struct aout_link_hash_entry *ret = (struct aout_link_hash_entry *) entry;
+
+  /* Allocate the structure if it has not already been allocated by a
+     subclass.  */
+  if (ret == (struct aout_link_hash_entry *) NULL)
+    ret = ((struct aout_link_hash_entry *)
+	   bfd_hash_allocate (table, sizeof (struct aout_link_hash_entry)));
+  if (ret == (struct aout_link_hash_entry *) NULL)
+    return (struct bfd_hash_entry *) ret;
+
+  /* Call the allocation method of the superclass.  */
+  ret = ((struct aout_link_hash_entry *)
+	 _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret,
+				 table, string));
+  if (ret)
+    {
+      /* Set local fields.  */
+      ret->written = false;
+      ret->indx = -1;
+    }
+
+  return (struct bfd_hash_entry *) ret;
+}
+
+/* Initialize an a.out link hash table.  */
+
+boolean
+NAME(aout,link_hash_table_init) (table, abfd, newfunc)
+     struct aout_link_hash_table *table;
+     bfd *abfd;
+     struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
+						struct bfd_hash_table *,
+						const char *));
+{
+  return _bfd_link_hash_table_init (&table->root, abfd, newfunc);
+}
+
+/* Create an a.out link hash table.  */
+
+struct bfd_link_hash_table *
+NAME(aout,link_hash_table_create) (abfd)
+     bfd *abfd;
+{
+  struct aout_link_hash_table *ret;
+
+  ret = ((struct aout_link_hash_table *)
+	 bfd_alloc (abfd, sizeof (struct aout_link_hash_table)));
+  if (ret == NULL)
+    return (struct bfd_link_hash_table *) NULL;
+  if (! NAME(aout,link_hash_table_init) (ret, abfd,
+					 NAME(aout,link_hash_newfunc)))
+    {
+      free (ret);
+      return (struct bfd_link_hash_table *) NULL;
+    }
+  return &ret->root;
+}
+
+/* Given an a.out BFD, add symbols to the global hash table as
+   appropriate.  */
+
+boolean
+NAME(aout,link_add_symbols) (abfd, info)
+     bfd *abfd;
+     struct bfd_link_info *info;
+{
+  switch (bfd_get_format (abfd))
+    {
+    case bfd_object:
+      return aout_link_add_object_symbols (abfd, info);
+    case bfd_archive:
+      return _bfd_generic_link_add_archive_symbols
+	(abfd, info, aout_link_check_archive_element);
+    default:
+      bfd_set_error (bfd_error_wrong_format);
+      return false;
+    }
+}
+
+/* Add symbols from an a.out object file.  */
+
+static boolean
+aout_link_add_object_symbols (abfd, info)
+     bfd *abfd;
+     struct bfd_link_info *info;
+{
+  if (! aout_get_external_symbols (abfd))
+    return false;
+  if (! aout_link_add_symbols (abfd, info))
+    return false;
+  if (! info->keep_memory)
+    {
+      if (! aout_link_free_symbols (abfd))
+	return false;
+    }
+  return true;
+}
+
+/* Check a single archive element to see if we need to include it in
+   the link.  *PNEEDED is set according to whether this element is
+   needed in the link or not.  This is called from
+   _bfd_generic_link_add_archive_symbols.  */
+
+static boolean
+aout_link_check_archive_element (abfd, info, pneeded)
+     bfd *abfd;
+     struct bfd_link_info *info;
+     boolean *pneeded;
+{
+  if (! aout_get_external_symbols (abfd))
+    return false;
+
+  if (! aout_link_check_ar_symbols (abfd, info, pneeded))
+    return false;
+
+  if (*pneeded)
+    {
+      if (! aout_link_add_symbols (abfd, info))
+	return false;
+    }
+
+  if (! info->keep_memory || ! *pneeded)
+    {
+      if (! aout_link_free_symbols (abfd))
+	return false;
+    }
+
+  return true;
+}
+
+/* Free up the internal symbols read from an a.out file.  */
+
+static boolean
+aout_link_free_symbols (abfd)
+     bfd *abfd;
+{
+  if (obj_aout_external_syms (abfd) != (struct external_nlist *) NULL)
+    {
+#ifdef USE_MMAP
+      bfd_free_window (&obj_aout_sym_window (abfd));
+#else
+      free ((PTR) obj_aout_external_syms (abfd));
+#endif
+      obj_aout_external_syms (abfd) = (struct external_nlist *) NULL;
+    }
+  if (obj_aout_external_strings (abfd) != (char *) NULL)
+    {
+#ifdef USE_MMAP
+      bfd_free_window (&obj_aout_string_window (abfd));
+#else
+      free ((PTR) obj_aout_external_strings (abfd));
+#endif
+      obj_aout_external_strings (abfd) = (char *) NULL;
+    }
+  return true;
+}
+
+/* Look through the internal symbols to see if this object file should
+   be included in the link.  We should include this object file if it
+   defines any symbols which are currently undefined.  If this object
+   file defines a common symbol, then we may adjust the size of the
+   known symbol but we do not include the object file in the link
+   (unless there is some other reason to include it).  */
+
+static boolean
+aout_link_check_ar_symbols (abfd, info, pneeded)
+     bfd *abfd;
+     struct bfd_link_info *info;
+     boolean *pneeded;
+{
+  register struct external_nlist *p;
+  struct external_nlist *pend;
+  char *strings;
+
+  *pneeded = false;
+
+  /* Look through all the symbols.  */
+  p = obj_aout_external_syms (abfd);
+  pend = p + obj_aout_external_sym_count (abfd);
+  strings = obj_aout_external_strings (abfd);
+  for (; p < pend; p++)
+    {
+      int type = bfd_h_get_8 (abfd, p->e_type);
+      const char *name;
+      struct bfd_link_hash_entry *h;
+
+      /* Ignore symbols that are not externally visible.  This is an
+	 optimization only, as we check the type more thoroughly
+	 below.  */
+      if ((type & N_EXT) == 0
+	  || type == N_FN)
+	continue;
+
+      name = strings + GET_WORD (abfd, p->e_strx);
+      h = bfd_link_hash_lookup (info->hash, name, false, false, true);
+
+      /* We are only interested in symbols that are currently
+	 undefined or common.  */
+      if (h == (struct bfd_link_hash_entry *) NULL
+	  || (h->type != bfd_link_hash_undefined
+	      && h->type != bfd_link_hash_common))
+	continue;
+
+      if (type == (N_TEXT | N_EXT)
+	  || type == (N_DATA | N_EXT)
+	  || type == (N_BSS | N_EXT)
+	  || type == (N_ABS | N_EXT))
+	{
+	  /* This object file defines this symbol.  We must link it
+	     in.  This is true regardless of whether the current
+	     definition of the symbol is undefined or common.  If the
+	     current definition is common, we have a case in which we
+	     have already seen an object file including
+	         int a;
+	     and this object file from the archive includes
+	         int a = 5;
+	     In such a case we must include this object file.
+
+	     FIXME: The SunOS 4.1.3 linker will pull in the archive
+	     element if the symbol is defined in the .data section,
+	     but not if it is defined in the .text section.  That
+	     seems a bit crazy to me, and I haven't implemented it.
+	     However, it might be correct.  */
+	  if (! (*info->callbacks->add_archive_element) (info, abfd, name))
+	    return false;
+	  *pneeded = true;
+	  return true;
+	}
+
+      if (type == (N_UNDF | N_EXT))
+	{
+	  bfd_vma value;
+
+	  value = GET_WORD (abfd, p->e_value);
+	  if (value != 0)
+	    {
+	      /* This symbol is common in the object from the archive
+		 file.  */
+	      if (h->type == bfd_link_hash_undefined)
+		{
+		  bfd *symbfd;
+		  unsigned int power;
+
+		  symbfd = h->u.undef.abfd;
+		  if (symbfd == (bfd *) NULL)
+		    {
+		      /* This symbol was created as undefined from
+			 outside BFD.  We assume that we should link
+			 in the object file.  This is done for the -u
+			 option in the linker.  */
+		      if (! (*info->callbacks->add_archive_element) (info,
+								     abfd,
+								     name))
+			return false;
+		      *pneeded = true;
+		      return true;
+		    }
+		  /* Turn the current link symbol into a common
+		     symbol.  It is already on the undefs list.  */
+		  h->type = bfd_link_hash_common;
+		  h->u.c.p = ((struct bfd_link_hash_common_entry *)
+			      bfd_hash_allocate (&info->hash->table,
+				  sizeof (struct bfd_link_hash_common_entry)));
+		  if (h->u.c.p == NULL)
+		    return false;
+
+		  h->u.c.size = value;
+
+		  /* FIXME: This isn't quite right.  The maximum
+		     alignment of a common symbol should be set by the
+		     architecture of the output file, not of the input
+		     file.  */
+		  power = bfd_log2 (value);
+		  if (power > bfd_get_arch_info (abfd)->section_align_power)
+		    power = bfd_get_arch_info (abfd)->section_align_power;
+		  h->u.c.p->alignment_power = power;
+
+		  h->u.c.p->section = bfd_make_section_old_way (symbfd,
+								"COMMON");
+		}
+	      else
+		{
+		  /* Adjust the size of the common symbol if
+		     necessary.  */
+		  if (value > h->u.c.size)
+		    h->u.c.size = value;
+		}
+	    }
+	}
+    }
+
+  /* We do not need this object file.  */
+  return true;
+}
+
+/* Add all symbols from an object file to the hash table.  */
+
+static boolean
+aout_link_add_symbols (abfd, info)
+     bfd *abfd;
+     struct bfd_link_info *info;
+{
+  boolean (*add_one_symbol) PARAMS ((struct bfd_link_info *, bfd *,
+				     const char *, flagword, asection *,
+				     bfd_vma, const char *, boolean,
+				     boolean,
+				     struct bfd_link_hash_entry **));
+  struct external_nlist *syms;
+  bfd_size_type sym_count;
+  char *strings;
+  boolean copy;
+  struct aout_link_hash_entry **sym_hash;
+  register struct external_nlist *p;
+  struct external_nlist *pend;
+
+  syms = obj_aout_external_syms (abfd);
+  sym_count = obj_aout_external_sym_count (abfd);
+  strings = obj_aout_external_strings (abfd);
+  if (info->keep_memory)
+    copy = false;
+  else
+    copy = true;
+
+  if (aout_backend_info (abfd)->add_dynamic_symbols != NULL)
+    {
+      if (! ((*aout_backend_info (abfd)->add_dynamic_symbols)
+	     (abfd, info, &syms, &sym_count, &strings)))
+	return false;
+    }
+
+  /* We keep a list of the linker hash table entries that correspond
+     to particular symbols.  We could just look them up in the hash
+     table, but keeping the list is more efficient.  Perhaps this
+     should be conditional on info->keep_memory.  */
+  sym_hash = ((struct aout_link_hash_entry **)
+	      bfd_alloc (abfd,
+			 ((size_t) sym_count
+			  * sizeof (struct aout_link_hash_entry *))));
+  if (sym_hash == NULL && sym_count != 0)
+    return false;
+  obj_aout_sym_hashes (abfd) = sym_hash;
+
+  add_one_symbol = aout_backend_info (abfd)->add_one_symbol;
+  if (add_one_symbol == NULL)
+    add_one_symbol = _bfd_generic_link_add_one_symbol;
+
+  p = syms;
+  pend = p + sym_count;
+  for (; p < pend; p++, sym_hash++)
+    {
+      int type;
+      const char *name;
+      bfd_vma value;
+      asection *section;
+      flagword flags;
+      const char *string;
+
+      *sym_hash = NULL;
+
+      type = bfd_h_get_8 (abfd, p->e_type);
+
+#if 0 /* not supported in PDP-11 a.out */
+      /* Ignore debugging symbols.  */
+      if ((type & N_STAB) != 0)
+	continue;
+#endif
+
+      name = strings + GET_WORD (abfd, p->e_strx);
+      value = GET_WORD (abfd, p->e_value);
+      flags = BSF_GLOBAL;
+      string = NULL;
+      switch (type)
+	{
+	default:
+	  abort ();
+
+	case N_UNDF:
+	case N_ABS:
+	case N_TEXT:
+	case N_DATA:
+	case N_BSS:
+	case N_REG:
+	case N_FN:
+	  /* Ignore symbols that are not externally visible.  */
+	  continue;
+
+	case N_UNDF | N_EXT:
+	  if (value == 0)
+	    {
+	      section = bfd_und_section_ptr;
+	      flags = 0;
+	    }
+	  else
+	    section = bfd_com_section_ptr;
+	  break;
+	case N_ABS | N_EXT:
+	  section = bfd_abs_section_ptr;
+	  break;
+	case N_TEXT | N_EXT:
+	  section = obj_textsec (abfd);
+	  value -= bfd_get_section_vma (abfd, section);
+	  break;
+	case N_DATA | N_EXT:
+	  /* Treat N_SETV symbols as N_DATA symbol; see comment in
+	     translate_from_native_sym_flags.  */
+	  section = obj_datasec (abfd);
+	  value -= bfd_get_section_vma (abfd, section);
+	  break;
+	case N_BSS | N_EXT:
+	  section = obj_bsssec (abfd);
+	  value -= bfd_get_section_vma (abfd, section);
+	  break;
+	}
+
+      if (! ((*add_one_symbol)
+	     (info, abfd, name, flags, section, value, string, copy, false,
+	      (struct bfd_link_hash_entry **) sym_hash)))
+	return false;
+
+      /* Restrict the maximum alignment of a common symbol based on
+	 the architecture, since a.out has no way to represent
+	 alignment requirements of a section in a .o file.  FIXME:
+	 This isn't quite right: it should use the architecture of the
+	 output file, not the input files.  */
+      if ((*sym_hash)->root.type == bfd_link_hash_common
+	  && ((*sym_hash)->root.u.c.p->alignment_power >
+	      bfd_get_arch_info (abfd)->section_align_power))
+	(*sym_hash)->root.u.c.p->alignment_power =
+	  bfd_get_arch_info (abfd)->section_align_power;
+
+      /* If this is a set symbol, and we are not building sets, then
+	 it is possible for the hash entry to not have been set.  In
+	 such a case, treat the symbol as not globally defined.  */
+      if ((*sym_hash)->root.type == bfd_link_hash_new)
+	{
+	  BFD_ASSERT ((flags & BSF_CONSTRUCTOR) != 0);
+	  *sym_hash = NULL;
+	}
+    }
+
+  return true;
+}
+
+/* A hash table used for header files with N_BINCL entries.  */
+
+struct aout_link_includes_table
+{
+  struct bfd_hash_table root;
+};
+
+/* A linked list of totals that we have found for a particular header
+   file.  */
+
+struct aout_link_includes_totals
+{
+  struct aout_link_includes_totals *next;
+  bfd_vma total;
+};
+
+/* An entry in the header file hash table.  */
+
+struct aout_link_includes_entry
+{
+  struct bfd_hash_entry root;
+  /* List of totals we have found for this file.  */
+  struct aout_link_includes_totals *totals;
+};
+
+/* Look up an entry in an the header file hash table.  */
+
+#define aout_link_includes_lookup(table, string, create, copy) \
+  ((struct aout_link_includes_entry *) \
+   bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
+
+/* During the final link step we need to pass around a bunch of
+   information, so we do it in an instance of this structure.  */
+
+struct aout_final_link_info
+{
+  /* General link information.  */
+  struct bfd_link_info *info;
+  /* Output bfd.  */
+  bfd *output_bfd;
+  /* Reloc file positions.  */
+  file_ptr treloff, dreloff;
+  /* File position of symbols.  */
+  file_ptr symoff;
+  /* String table.  */
+  struct bfd_strtab_hash *strtab;
+  /* Header file hash table.  */
+  struct aout_link_includes_table includes;
+  /* A buffer large enough to hold the contents of any section.  */
+  bfd_byte *contents;
+  /* A buffer large enough to hold the relocs of any section.  */
+  PTR relocs;
+  /* A buffer large enough to hold the symbol map of any input BFD.  */
+  int *symbol_map;
+  /* A buffer large enough to hold output symbols of any input BFD.  */
+  struct external_nlist *output_syms;
+};
+
+static struct bfd_hash_entry *aout_link_includes_newfunc
+  PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
+static boolean aout_link_input_bfd
+  PARAMS ((struct aout_final_link_info *, bfd *input_bfd));
+static boolean aout_link_write_symbols
+  PARAMS ((struct aout_final_link_info *, bfd *input_bfd));
+static boolean aout_link_write_other_symbol
+  PARAMS ((struct aout_link_hash_entry *, PTR));
+static boolean aout_link_input_section
+  PARAMS ((struct aout_final_link_info *, bfd *input_bfd,
+	   asection *input_section, file_ptr *reloff_ptr,
+	   bfd_size_type rel_size));
+static INLINE asection *aout_reloc_type_to_section
+  PARAMS ((bfd *, int));
+static boolean aout_link_reloc_link_order
+  PARAMS ((struct aout_final_link_info *, asection *,
+	   struct bfd_link_order *));
+static boolean pdp11_aout_link_input_section
+  PARAMS ((struct aout_final_link_info *finfo,
+	   bfd *input_bfd,
+	   asection *input_section,
+	   struct pdp11_aout_reloc_external *relocs,
+	   bfd_size_type rel_size,
+	   bfd_byte *contents));
+
+/* The function to create a new entry in the header file hash table.  */
+
+static struct bfd_hash_entry *
+aout_link_includes_newfunc (entry, table, string)
+     struct bfd_hash_entry *entry;
+     struct bfd_hash_table *table;
+     const char *string;
+{
+  struct aout_link_includes_entry *ret =
+    (struct aout_link_includes_entry *) entry;
+
+  /* Allocate the structure if it has not already been allocated by a
+     subclass.  */
+  if (ret == (struct aout_link_includes_entry *) NULL)
+    ret = ((struct aout_link_includes_entry *)
+	   bfd_hash_allocate (table,
+			      sizeof (struct aout_link_includes_entry)));
+  if (ret == (struct aout_link_includes_entry *) NULL)
+    return (struct bfd_hash_entry *) ret;
+
+  /* Call the allocation method of the superclass.  */
+  ret = ((struct aout_link_includes_entry *)
+	 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
+  if (ret)
+    {
+      /* Set local fields.  */
+      ret->totals = NULL;
+    }
+
+  return (struct bfd_hash_entry *) ret;
+}
+
+/* Do the final link step.  This is called on the output BFD.  The
+   INFO structure should point to a list of BFDs linked through the
+   link_next field which can be used to find each BFD which takes part
+   in the output.  Also, each section in ABFD should point to a list
+   of bfd_link_order structures which list all the input sections for
+   the output section.  */
+
+boolean
+NAME(aout,final_link) (abfd, info, callback)
+     bfd *abfd;
+     struct bfd_link_info *info;
+     void (*callback) PARAMS ((bfd *, file_ptr *, file_ptr *, file_ptr *));
+{
+  struct aout_final_link_info aout_info;
+  boolean includes_hash_initialized = false;
+  register bfd *sub;
+  bfd_size_type trsize, drsize;
+  size_t max_contents_size;
+  size_t max_relocs_size;
+  size_t max_sym_count;
+  bfd_size_type text_size;
+  file_ptr text_end;
+  register struct bfd_link_order *p;
+  asection *o;
+  boolean have_link_order_relocs;
+
+  if (info->shared)
+    abfd->flags |= DYNAMIC;
+
+  aout_info.info = info;
+  aout_info.output_bfd = abfd;
+  aout_info.contents = NULL;
+  aout_info.relocs = NULL;
+  aout_info.symbol_map = NULL;
+  aout_info.output_syms = NULL;
+
+  if (! bfd_hash_table_init_n (&aout_info.includes.root,
+			       aout_link_includes_newfunc,
+			       251))
+    goto error_return;
+  includes_hash_initialized = true;
+
+  /* Figure out the largest section size.  Also, if generating
+     relocateable output, count the relocs.  */
+  trsize = 0;
+  drsize = 0;
+  max_contents_size = 0;
+  max_relocs_size = 0;
+  max_sym_count = 0;
+  for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
+    {
+      size_t sz;
+
+      if (info->relocateable)
+	{
+	  if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
+	    {
+	      trsize += exec_hdr (sub)->a_trsize;
+	      drsize += exec_hdr (sub)->a_drsize;
+	    }
+	  else
+	    {
+	      /* FIXME: We need to identify the .text and .data sections
+		 and call get_reloc_upper_bound and canonicalize_reloc to
+		 work out the number of relocs needed, and then multiply
+		 by the reloc size.  */
+	      (*_bfd_error_handler)
+		("%s: relocateable link from %s to %s not supported",
+		 bfd_get_filename (abfd),
+		 sub->xvec->name, abfd->xvec->name);
+	      bfd_set_error (bfd_error_invalid_operation);
+	      goto error_return;
+	    }
+	}
+
+      if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
+	{
+	  sz = bfd_section_size (sub, obj_textsec (sub));
+	  if (sz > max_contents_size)
+	    max_contents_size = sz;
+	  sz = bfd_section_size (sub, obj_datasec (sub));
+	  if (sz > max_contents_size)
+	    max_contents_size = sz;
+
+	  sz = exec_hdr (sub)->a_trsize;
+	  if (sz > max_relocs_size)
+	    max_relocs_size = sz;
+	  sz = exec_hdr (sub)->a_drsize;
+	  if (sz > max_relocs_size)
+	    max_relocs_size = sz;
+
+	  sz = obj_aout_external_sym_count (sub);
+	  if (sz > max_sym_count)
+	    max_sym_count = sz;
+	}
+    }
+
+  if (info->relocateable)
+    {
+      if (obj_textsec (abfd) != (asection *) NULL)
+	trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd)
+						 ->link_order_head)
+		   * obj_reloc_entry_size (abfd));
+      if (obj_datasec (abfd) != (asection *) NULL)
+	drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd)
+						 ->link_order_head)
+		   * obj_reloc_entry_size (abfd));
+    }
+
+  exec_hdr (abfd)->a_trsize = trsize;
+  exec_hdr (abfd)->a_drsize = drsize;
+
+  exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
+
+  /* Adjust the section sizes and vmas according to the magic number.
+     This sets a_text, a_data and a_bss in the exec_hdr and sets the
+     filepos for each section.  */
+  if (! NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end))
+    goto error_return;
+
+  /* The relocation and symbol file positions differ among a.out
+     targets.  We are passed a callback routine from the backend
+     specific code to handle this.
+     FIXME: At this point we do not know how much space the symbol
+     table will require.  This will not work for any (nonstandard)
+     a.out target that needs to know the symbol table size before it
+     can compute the relocation file positions.  This may or may not
+     be the case for the hp300hpux target, for example.  */
+  (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff,
+	       &aout_info.symoff);
+  obj_textsec (abfd)->rel_filepos = aout_info.treloff;
+  obj_datasec (abfd)->rel_filepos = aout_info.dreloff;
+  obj_sym_filepos (abfd) = aout_info.symoff;
+
+  /* We keep a count of the symbols as we output them.  */
+  obj_aout_external_sym_count (abfd) = 0;
+
+  /* We accumulate the string table as we write out the symbols.  */
+  aout_info.strtab = _bfd_stringtab_init ();
+  if (aout_info.strtab == NULL)
+    goto error_return;
+
+  /* Allocate buffers to hold section contents and relocs.  */
+  aout_info.contents = (bfd_byte *) bfd_malloc (max_contents_size);
+  aout_info.relocs = (PTR) bfd_malloc (max_relocs_size);
+  aout_info.symbol_map = (int *) bfd_malloc (max_sym_count * sizeof (int *));
+  aout_info.output_syms = ((struct external_nlist *)
+			   bfd_malloc ((max_sym_count + 1)
+				       * sizeof (struct external_nlist)));
+  if ((aout_info.contents == NULL && max_contents_size != 0)
+      || (aout_info.relocs == NULL && max_relocs_size != 0)
+      || (aout_info.symbol_map == NULL && max_sym_count != 0)
+      || aout_info.output_syms == NULL)
+    goto error_return;
+
+  /* If we have a symbol named __DYNAMIC, force it out now.  This is
+     required by SunOS.  Doing this here rather than in sunos.c is a
+     hack, but it's easier than exporting everything which would be
+     needed.  */
+  {
+    struct aout_link_hash_entry *h;
+
+    h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC",
+			       false, false, false);
+    if (h != NULL)
+      aout_link_write_other_symbol (h, &aout_info);
+  }
+
+  /* The most time efficient way to do the link would be to read all
+     the input object files into memory and then sort out the
+     information into the output file.  Unfortunately, that will
+     probably use too much memory.  Another method would be to step
+     through everything that composes the text section and write it
+     out, and then everything that composes the data section and write
+     it out, and then write out the relocs, and then write out the
+     symbols.  Unfortunately, that requires reading stuff from each
+     input file several times, and we will not be able to keep all the
+     input files open simultaneously, and reopening them will be slow.
+
+     What we do is basically process one input file at a time.  We do
+     everything we need to do with an input file once--copy over the
+     section contents, handle the relocation information, and write
+     out the symbols--and then we throw away the information we read
+     from it.  This approach requires a lot of lseeks of the output
+     file, which is unfortunate but still faster than reopening a lot
+     of files.
+
+     We use the output_has_begun field of the input BFDs to see
+     whether we have already handled it.  */
+  for (sub = info->input_bfds; sub != (bfd *) NULL; sub = sub->link_next)
+    sub->output_has_begun = false;
+
+  /* Mark all sections which are to be included in the link.  This
+     will normally be every section.  We need to do this so that we
+     can identify any sections which the linker has decided to not
+     include.  */
+  for (o = abfd->sections; o != NULL; o = o->next)
+    {
+      for (p = o->link_order_head; p != NULL; p = p->next)
+	{
+	  if (p->type == bfd_indirect_link_order)
+	    p->u.indirect.section->linker_mark = true;
+	}
+    }
+
+  have_link_order_relocs = false;
+  for (o = abfd->sections; o != (asection *) NULL; o = o->next)
+    {
+      for (p = o->link_order_head;
+	   p != (struct bfd_link_order *) NULL;
+	   p = p->next)
+	{
+	  if (p->type == bfd_indirect_link_order
+	      && (bfd_get_flavour (p->u.indirect.section->owner)
+		  == bfd_target_aout_flavour))
+	    {
+	      bfd *input_bfd;
+
+	      input_bfd = p->u.indirect.section->owner;
+	      if (! input_bfd->output_has_begun)
+		{
+		  if (! aout_link_input_bfd (&aout_info, input_bfd))
+		    goto error_return;
+		  input_bfd->output_has_begun = true;
+		}
+	    }
+	  else if (p->type == bfd_section_reloc_link_order
+		   || p->type == bfd_symbol_reloc_link_order)
+	    {
+	      /* These are handled below.  */
+	      have_link_order_relocs = true;
+	    }
+	  else
+	    {
+	      if (! _bfd_default_link_order (abfd, info, o, p))
+		goto error_return;
+	    }
+	}
+    }
+
+  /* Write out any symbols that we have not already written out.  */
+  aout_link_hash_traverse (aout_hash_table (info),
+			   aout_link_write_other_symbol,
+			   (PTR) &aout_info);
+
+  /* Now handle any relocs we were asked to create by the linker.
+     These did not come from any input file.  We must do these after
+     we have written out all the symbols, so that we know the symbol
+     indices to use.  */
+  if (have_link_order_relocs)
+    {
+      for (o = abfd->sections; o != (asection *) NULL; o = o->next)
+	{
+	  for (p = o->link_order_head;
+	       p != (struct bfd_link_order *) NULL;
+	       p = p->next)
+	    {
+	      if (p->type == bfd_section_reloc_link_order
+		  || p->type == bfd_symbol_reloc_link_order)
+		{
+		  if (! aout_link_reloc_link_order (&aout_info, o, p))
+		    goto error_return;
+		}
+	    }
+	}
+    }
+
+  if (aout_info.contents != NULL)
+    {
+      free (aout_info.contents);
+      aout_info.contents = NULL;
+    }
+  if (aout_info.relocs != NULL)
+    {
+      free (aout_info.relocs);
+      aout_info.relocs = NULL;
+    }
+  if (aout_info.symbol_map != NULL)
+    {
+      free (aout_info.symbol_map);
+      aout_info.symbol_map = NULL;
+    }
+  if (aout_info.output_syms != NULL)
+    {
+      free (aout_info.output_syms);
+      aout_info.output_syms = NULL;
+    }
+  if (includes_hash_initialized)
+    {
+      bfd_hash_table_free (&aout_info.includes.root);
+      includes_hash_initialized = false;
+    }
+
+  /* Finish up any dynamic linking we may be doing.  */
+  if (aout_backend_info (abfd)->finish_dynamic_link != NULL)
+    {
+      if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info))
+	goto error_return;
+    }
+
+  /* Update the header information.  */
+  abfd->symcount = obj_aout_external_sym_count (abfd);
+  exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE;
+  obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms;
+  obj_textsec (abfd)->reloc_count =
+    exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
+  obj_datasec (abfd)->reloc_count =
+    exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
+
+  /* Write out the string table, unless there are no symbols.  */
+  if (abfd->symcount > 0)
+    {
+      if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0
+	  || ! emit_stringtab (abfd, aout_info.strtab))
+	goto error_return;
+    }
+  else if (obj_textsec (abfd)->reloc_count == 0
+	   && obj_datasec (abfd)->reloc_count == 0)
+    {
+      bfd_byte b;
+
+      b = 0;
+      if (bfd_seek (abfd,
+		    (obj_datasec (abfd)->filepos
+		     + exec_hdr (abfd)->a_data
+		     - 1),
+		    SEEK_SET) != 0
+	  || bfd_write (&b, 1, 1, abfd) != 1)
+	goto error_return;
+    }
+
+  return true;
+
+ error_return:
+  if (aout_info.contents != NULL)
+    free (aout_info.contents);
+  if (aout_info.relocs != NULL)
+    free (aout_info.relocs);
+  if (aout_info.symbol_map != NULL)
+    free (aout_info.symbol_map);
+  if (aout_info.output_syms != NULL)
+    free (aout_info.output_syms);
+  if (includes_hash_initialized)
+    bfd_hash_table_free (&aout_info.includes.root);
+  return false;
+}
+
+/* Link an a.out input BFD into the output file.  */
+
+static boolean
+aout_link_input_bfd (finfo, input_bfd)
+     struct aout_final_link_info *finfo;
+     bfd *input_bfd;
+{
+  bfd_size_type sym_count;
+
+  BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
+
+  /* If this is a dynamic object, it may need special handling.  */
+  if ((input_bfd->flags & DYNAMIC) != 0
+      && aout_backend_info (input_bfd)->link_dynamic_object != NULL)
+    {
+      return ((*aout_backend_info (input_bfd)->link_dynamic_object)
+	      (finfo->info, input_bfd));
+    }
+
+  /* Get the symbols.  We probably have them already, unless
+     finfo->info->keep_memory is false.  */
+  if (! aout_get_external_symbols (input_bfd))
+    return false;
+
+  sym_count = obj_aout_external_sym_count (input_bfd);
+
+  /* Write out the symbols and get a map of the new indices.  The map
+     is placed into finfo->symbol_map.  */
+  if (! aout_link_write_symbols (finfo, input_bfd))
+    return false;
+
+  /* Relocate and write out the sections.  These functions use the
+     symbol map created by aout_link_write_symbols.  The linker_mark
+     field will be set if these sections are to be included in the
+     link, which will normally be the case.  */
+  if (obj_textsec (input_bfd)->linker_mark)
+    {
+      if (! aout_link_input_section (finfo, input_bfd,
+				     obj_textsec (input_bfd),
+				     &finfo->treloff,
+				     exec_hdr (input_bfd)->a_trsize))
+	return false;
+    }
+  if (obj_datasec (input_bfd)->linker_mark)
+    {
+      if (! aout_link_input_section (finfo, input_bfd,
+				     obj_datasec (input_bfd),
+				     &finfo->dreloff,
+				     exec_hdr (input_bfd)->a_drsize))
+	return false;
+    }
+
+  /* If we are not keeping memory, we don't need the symbols any
+     longer.  We still need them if we are keeping memory, because the
+     strings in the hash table point into them.  */
+  if (! finfo->info->keep_memory)
+    {
+      if (! aout_link_free_symbols (input_bfd))
+	return false;
+    }
+
+  return true;
+}
+
+/* Adjust and write out the symbols for an a.out file.  Set the new
+   symbol indices into a symbol_map.  */
+
+static boolean
+aout_link_write_symbols (finfo, input_bfd)
+     struct aout_final_link_info *finfo;
+     bfd *input_bfd;
+{
+  bfd *output_bfd;
+  bfd_size_type sym_count;
+  char *strings;
+  enum bfd_link_strip strip;
+  enum bfd_link_discard discard;
+  struct external_nlist *outsym;
+  bfd_size_type strtab_index;
+  register struct external_nlist *sym;
+  struct external_nlist *sym_end;
+  struct aout_link_hash_entry **sym_hash;
+  int *symbol_map;
+  boolean pass;
+  boolean skip_next;
+
+  output_bfd = finfo->output_bfd;
+  sym_count = obj_aout_external_sym_count (input_bfd);
+  strings = obj_aout_external_strings (input_bfd);
+  strip = finfo->info->strip;
+  discard = finfo->info->discard;
+  outsym = finfo->output_syms;
+
+  /* First write out a symbol for this object file, unless we are
+     discarding such symbols.  */
+  if (strip != strip_all
+      && (strip != strip_some
+	  || bfd_hash_lookup (finfo->info->keep_hash, input_bfd->filename,
+			      false, false) != NULL)
+      && discard != discard_all)
+    {
+      bfd_h_put_8 (output_bfd, N_TEXT, outsym->e_type);
+      strtab_index = add_to_stringtab (output_bfd, finfo->strtab,
+				       input_bfd->filename, false);
+      if (strtab_index == (bfd_size_type) -1)
+	return false;
+      PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
+      PUT_WORD (output_bfd,
+		(bfd_get_section_vma (output_bfd,
+				      obj_textsec (input_bfd)->output_section)
+		 + obj_textsec (input_bfd)->output_offset),
+		outsym->e_value);
+      ++obj_aout_external_sym_count (output_bfd);
+      ++outsym;
+    }
+
+  pass = false;
+  skip_next = false;
+  sym = obj_aout_external_syms (input_bfd);
+  sym_end = sym + sym_count;
+  sym_hash = obj_aout_sym_hashes (input_bfd);
+  symbol_map = finfo->symbol_map;
+  memset (symbol_map, 0, sym_count * sizeof *symbol_map);
+  for (; sym < sym_end; sym++, sym_hash++, symbol_map++)
+    {
+      const char *name;
+      int type;
+      struct aout_link_hash_entry *h;
+      boolean skip;
+      asection *symsec;
+      bfd_vma val = 0;
+      boolean copy;
+
+      /* We set *symbol_map to 0 above for all symbols.  If it has
+         already been set to -1 for this symbol, it means that we are
+         discarding it because it appears in a duplicate header file.
+         See the N_BINCL code below.  */
+      if (*symbol_map == -1)
+	continue;
+
+      /* Initialize *symbol_map to -1, which means that the symbol was
+         not copied into the output file.  We will change it later if
+         we do copy the symbol over.  */
+      *symbol_map = -1;
+
+      type = bfd_h_get_8 (input_bfd, sym->e_type);
+      name = strings + GET_WORD (input_bfd, sym->e_strx);
+
+      h = NULL;
+
+      if (pass)
+	{
+	  /* Pass this symbol through.  It is the target of an
+	     indirect or warning symbol.  */
+	  val = GET_WORD (input_bfd, sym->e_value);
+	  pass = false;
+	}
+      else if (skip_next)
+	{
+	  /* Skip this symbol, which is the target of an indirect
+	     symbol that we have changed to no longer be an indirect
+	     symbol.  */
+	  skip_next = false;
+	  continue;
+	}
+      else
+	{
+	  struct aout_link_hash_entry *hresolve;
+
+	  /* We have saved the hash table entry for this symbol, if
+	     there is one.  Note that we could just look it up again
+	     in the hash table, provided we first check that it is an
+	     external symbol. */
+	  h = *sym_hash;
+
+	  /* Use the name from the hash table, in case the symbol was
+             wrapped.  */
+	  if (h != NULL)
+	    name = h->root.root.string;
+
+	  /* If this is an indirect or warning symbol, then change
+	     hresolve to the base symbol.  We also change *sym_hash so
+	     that the relocation routines relocate against the real
+	     symbol.  */
+	  hresolve = h;
+	  if (h != (struct aout_link_hash_entry *) NULL
+	      && (h->root.type == bfd_link_hash_indirect
+		  || h->root.type == bfd_link_hash_warning))
+	    {
+	      hresolve = (struct aout_link_hash_entry *) h->root.u.i.link;
+	      while (hresolve->root.type == bfd_link_hash_indirect
+		     || hresolve->root.type == bfd_link_hash_warning)
+		hresolve = ((struct aout_link_hash_entry *)
+			    hresolve->root.u.i.link);
+	      *sym_hash = hresolve;
+	    }
+
+	  /* If the symbol has already been written out, skip it.  */
+	  if (h != (struct aout_link_hash_entry *) NULL
+	      && h->root.type != bfd_link_hash_warning
+	      && h->written)
+	    {
+	      if ((type & N_TYPE) == N_INDR
+		  || type == N_WARNING)
+		skip_next = true;
+	      *symbol_map = h->indx;
+	      continue;
+	    }
+
+	  /* See if we are stripping this symbol.  */
+	  skip = false;
+	  switch (strip)
+	    {
+	    case strip_none:
+	      break;
+	    case strip_debugger:
+	      if ((type & N_STAB) != 0)
+		skip = true;
+	      break;
+	    case strip_some:
+	      if (bfd_hash_lookup (finfo->info->keep_hash, name, false, false)
+		  == NULL)
+		skip = true;
+	      break;
+	    case strip_all:
+	      skip = true;
+	      break;
+	    }
+	  if (skip)
+	    {
+	      if (h != (struct aout_link_hash_entry *) NULL)
+		h->written = true;
+	      continue;
+	    }
+
+	  /* Get the value of the symbol.  */
+	  if ((type & N_TYPE) == N_TEXT
+	      || type == N_WEAKT)
+	    symsec = obj_textsec (input_bfd);
+	  else if ((type & N_TYPE) == N_DATA
+		   || type == N_WEAKD)
+	    symsec = obj_datasec (input_bfd);
+	  else if ((type & N_TYPE) == N_BSS
+		   || type == N_WEAKB)
+	    symsec = obj_bsssec (input_bfd);
+	  else if ((type & N_TYPE) == N_ABS
+		   || type == N_WEAKA)
+	    symsec = bfd_abs_section_ptr;
+	  else if (((type & N_TYPE) == N_INDR
+		    && (hresolve == (struct aout_link_hash_entry *) NULL
+			|| (hresolve->root.type != bfd_link_hash_defined
+			    && hresolve->root.type != bfd_link_hash_defweak
+			    && hresolve->root.type != bfd_link_hash_common)))
+		   || type == N_WARNING)
+	    {
+	      /* Pass the next symbol through unchanged.  The
+		 condition above for indirect symbols is so that if
+		 the indirect symbol was defined, we output it with
+		 the correct definition so the debugger will
+		 understand it.  */
+	      pass = true;
+	      val = GET_WORD (input_bfd, sym->e_value);
+	      symsec = NULL;
+	    }
+	  else if ((type & N_STAB) != 0)
+	    {
+	      val = GET_WORD (input_bfd, sym->e_value);
+	      symsec = NULL;
+	    }
+	  else
+	    {
+	      /* If we get here with an indirect symbol, it means that
+		 we are outputting it with a real definition.  In such
+		 a case we do not want to output the next symbol,
+		 which is the target of the indirection.  */
+	      if ((type & N_TYPE) == N_INDR)
+		skip_next = true;
+
+	      symsec = NULL;
+
+	      /* We need to get the value from the hash table.  We use
+		 hresolve so that if we have defined an indirect
+		 symbol we output the final definition.  */
+	      if (h == (struct aout_link_hash_entry *) NULL)
+		{
+		  switch (type & N_TYPE)
+		    {
+		    case N_SETT:
+		      symsec = obj_textsec (input_bfd);
+		      break;
+		    case N_SETD:
+		      symsec = obj_datasec (input_bfd);
+		      break;
+		    case N_SETB:
+		      symsec = obj_bsssec (input_bfd);
+		      break;
+		    case N_SETA:
+		      symsec = bfd_abs_section_ptr;
+		      break;
+		    default:
+		      val = 0;
+		      break;
+		    }
+		}
+	      else if (hresolve->root.type == bfd_link_hash_defined
+		       || hresolve->root.type == bfd_link_hash_defweak)
+		{
+		  asection *input_section;
+		  asection *output_section;
+
+		  /* This case usually means a common symbol which was
+		     turned into a defined symbol.  */
+		  input_section = hresolve->root.u.def.section;
+		  output_section = input_section->output_section;
+		  BFD_ASSERT (bfd_is_abs_section (output_section)
+			      || output_section->owner == output_bfd);
+		  val = (hresolve->root.u.def.value
+			 + bfd_get_section_vma (output_bfd, output_section)
+			 + input_section->output_offset);
+
+		  /* Get the correct type based on the section.  If
+		     this is a constructed set, force it to be
+		     globally visible.  */
+		  if (type == N_SETT
+		      || type == N_SETD
+		      || type == N_SETB
+		      || type == N_SETA)
+		    type |= N_EXT;
+
+		  type &=~ N_TYPE;
+
+		  if (output_section == obj_textsec (output_bfd))
+		    type |= (hresolve->root.type == bfd_link_hash_defined
+			     ? N_TEXT
+			     : N_WEAKT);
+		  else if (output_section == obj_datasec (output_bfd))
+		    type |= (hresolve->root.type == bfd_link_hash_defined
+			     ? N_DATA
+			     : N_WEAKD);
+		  else if (output_section == obj_bsssec (output_bfd))
+		    type |= (hresolve->root.type == bfd_link_hash_defined
+			     ? N_BSS
+			     : N_WEAKB);
+		  else
+		    type |= (hresolve->root.type == bfd_link_hash_defined
+			     ? N_ABS
+			     : N_WEAKA);
+		}
+	      else if (hresolve->root.type == bfd_link_hash_common)
+		val = hresolve->root.u.c.size;
+	      else if (hresolve->root.type == bfd_link_hash_undefweak)
+		{
+		  val = 0;
+		  type = N_WEAKU;
+		}
+	      else
+		val = 0;
+	    }
+	  if (symsec != (asection *) NULL)
+	    val = (symsec->output_section->vma
+		   + symsec->output_offset
+		   + (GET_WORD (input_bfd, sym->e_value)
+		      - symsec->vma));
+
+	  /* If this is a global symbol set the written flag, and if
+	     it is a local symbol see if we should discard it.  */
+	  if (h != (struct aout_link_hash_entry *) NULL)
+	    {
+	      h->written = true;
+	      h->indx = obj_aout_external_sym_count (output_bfd);
+	    }
+	  else if ((type & N_TYPE) != N_SETT
+		   && (type & N_TYPE) != N_SETD
+		   && (type & N_TYPE) != N_SETB
+		   && (type & N_TYPE) != N_SETA)
+	    {
+	      switch (discard)
+		{
+		case discard_none:
+		  break;
+		case discard_l:
+		  if ((type & N_STAB) == 0
+		      && bfd_is_local_label_name (input_bfd, name))
+		    skip = true;
+		  break;
+		case discard_all:
+		  skip = true;
+		  break;
+		}
+	      if (skip)
+		{
+		  pass = false;
+		  continue;
+		}
+	    }
+
+	  /* An N_BINCL symbol indicates the start of the stabs
+	     entries for a header file.  We need to scan ahead to the
+	     next N_EINCL symbol, ignoring nesting, adding up all the
+	     characters in the symbol names, not including the file
+	     numbers in types (the first number after an open
+	     parenthesis).  */
+	  if (type == N_BINCL)
+	    {
+	      struct external_nlist *incl_sym;
+	      int nest;
+	      struct aout_link_includes_entry *incl_entry;
+	      struct aout_link_includes_totals *t;
+
+	      val = 0;
+	      nest = 0;
+	      for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++)
+		{
+		  int incl_type;
+
+		  incl_type = bfd_h_get_8 (input_bfd, incl_sym->e_type);
+		  if (incl_type == N_EINCL)
+		    {
+		      if (nest == 0)
+			break;
+		      --nest;
+		    }
+		  else if (incl_type == N_BINCL)
+		    ++nest;
+		  else if (nest == 0)
+		    {
+		      const char *s;
+
+		      s = strings + GET_WORD (input_bfd, incl_sym->e_strx);
+		      for (; *s != '\0'; s++)
+			{
+			  val += *s;
+			  if (*s == '(')
+			    {
+			      /* Skip the file number.  */
+			      ++s;
+			      while (isdigit ((unsigned char) *s))
+				++s;
+			      --s;
+			    }
+			}
+		    }
+		}
+
+	      /* If we have already included a header file with the
+                 same value, then replace this one with an N_EXCL
+                 symbol.  */
+	      copy = ! finfo->info->keep_memory;
+	      incl_entry = aout_link_includes_lookup (&finfo->includes,
+						      name, true, copy);
+	      if (incl_entry == NULL)
+		return false;
+	      for (t = incl_entry->totals; t != NULL; t = t->next)
+		if (t->total == val)
+		  break;
+	      if (t == NULL)
+		{
+		  /* This is the first time we have seen this header
+                     file with this set of stabs strings.  */
+		  t = ((struct aout_link_includes_totals *)
+		       bfd_hash_allocate (&finfo->includes.root,
+					  sizeof *t));
+		  if (t == NULL)
+		    return false;
+		  t->total = val;
+		  t->next = incl_entry->totals;
+		  incl_entry->totals = t;
+		}
+	      else
+		{
+		  int *incl_map;
+
+		  /* This is a duplicate header file.  We must change
+                     it to be an N_EXCL entry, and mark all the
+                     included symbols to prevent outputting them.  */
+		  type = N_EXCL;
+
+		  nest = 0;
+		  for (incl_sym = sym + 1, incl_map = symbol_map + 1;
+		       incl_sym < sym_end;
+		       incl_sym++, incl_map++)
+		    {
+		      int incl_type;
+
+		      incl_type = bfd_h_get_8 (input_bfd, incl_sym->e_type);
+		      if (incl_type == N_EINCL)
+			{
+			  if (nest == 0)
+			    {
+			      *incl_map = -1;
+			      break;
+			    }
+			  --nest;
+			}
+		      else if (incl_type == N_BINCL)
+			++nest;
+		      else if (nest == 0)
+			*incl_map = -1;
+		    }
+		}
+	    }
+	}
+
+      /* Copy this symbol into the list of symbols we are going to
+	 write out.  */
+      bfd_h_put_8 (output_bfd, type, outsym->e_type);
+      copy = false;
+      if (! finfo->info->keep_memory)
+	{
+	  /* name points into a string table which we are going to
+	     free.  If there is a hash table entry, use that string.
+	     Otherwise, copy name into memory.  */
+	  if (h != (struct aout_link_hash_entry *) NULL)
+	    name = h->root.root.string;
+	  else
+	    copy = true;
+	}
+      strtab_index = add_to_stringtab (output_bfd, finfo->strtab,
+				       name, copy);
+      if (strtab_index == (bfd_size_type) -1)
+	return false;
+      PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
+      PUT_WORD (output_bfd, val, outsym->e_value);
+      *symbol_map = obj_aout_external_sym_count (output_bfd);
+      ++obj_aout_external_sym_count (output_bfd);
+      ++outsym;
+    }
+
+  /* Write out the output symbols we have just constructed.  */
+  if (outsym > finfo->output_syms)
+    {
+      bfd_size_type outsym_count;
+
+      if (bfd_seek (output_bfd, finfo->symoff, SEEK_SET) != 0)
+	return false;
+      outsym_count = outsym - finfo->output_syms;
+      if (bfd_write ((PTR) finfo->output_syms,
+		     (bfd_size_type) EXTERNAL_NLIST_SIZE,
+		     (bfd_size_type) outsym_count, output_bfd)
+	  != outsym_count * EXTERNAL_NLIST_SIZE)
+	return false;
+      finfo->symoff += outsym_count * EXTERNAL_NLIST_SIZE;
+    }
+
+  return true;
+}
+
+/* Write out a symbol that was not associated with an a.out input
+   object.  */
+
+static boolean
+aout_link_write_other_symbol (h, data)
+     struct aout_link_hash_entry *h;
+     PTR data;
+{
+  struct aout_final_link_info *finfo = (struct aout_final_link_info *) data;
+  bfd *output_bfd;
+  int type;
+  bfd_vma val;
+  struct external_nlist outsym;
+  bfd_size_type indx;
+
+  output_bfd = finfo->output_bfd;
+
+  if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL)
+    {
+      if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol)
+	     (output_bfd, finfo->info, h)))
+	{
+	  /* FIXME: No way to handle errors.  */
+	  abort ();
+	}
+    }
+
+  if (h->written)
+    return true;
+
+  h->written = true;
+
+  /* An indx of -2 means the symbol must be written.  */
+  if (h->indx != -2
+      && (finfo->info->strip == strip_all
+	  || (finfo->info->strip == strip_some
+	      && bfd_hash_lookup (finfo->info->keep_hash, h->root.root.string,
+				  false, false) == NULL)))
+    return true;
+
+  switch (h->root.type)
+    {
+    default:
+      abort ();
+      /* Avoid variable not initialized warnings.  */
+      return true;
+    case bfd_link_hash_new:
+      /* This can happen for set symbols when sets are not being
+         built.  */
+      return true;
+    case bfd_link_hash_undefined:
+      type = N_UNDF | N_EXT;
+      val = 0;
+      break;
+    case bfd_link_hash_defined:
+    case bfd_link_hash_defweak:
+      {
+	asection *sec;
+
+	sec = h->root.u.def.section->output_section;
+	BFD_ASSERT (bfd_is_abs_section (sec)
+		    || sec->owner == output_bfd);
+	if (sec == obj_textsec (output_bfd))
+	  type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT;
+	else if (sec == obj_datasec (output_bfd))
+	  type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD;
+	else if (sec == obj_bsssec (output_bfd))
+	  type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB;
+	else
+	  type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA;
+	type |= N_EXT;
+	val = (h->root.u.def.value
+	       + sec->vma
+	       + h->root.u.def.section->output_offset);
+      }
+      break;
+    case bfd_link_hash_common:
+      type = N_UNDF | N_EXT;
+      val = h->root.u.c.size;
+      break;
+    case bfd_link_hash_undefweak:
+      type = N_WEAKU;
+      val = 0;
+    case bfd_link_hash_indirect:
+    case bfd_link_hash_warning:
+      /* FIXME: Ignore these for now.  The circumstances under which
+	 they should be written out are not clear to me.  */
+      return true;
+    }
+
+  bfd_h_put_8 (output_bfd, type, outsym.e_type);
+  indx = add_to_stringtab (output_bfd, finfo->strtab, h->root.root.string,
+			   false);
+  if (indx == (bfd_size_type) -1)
+    {
+      /* FIXME: No way to handle errors.  */
+      abort ();
+    }
+  PUT_WORD (output_bfd, indx, outsym.e_strx);
+  PUT_WORD (output_bfd, val, outsym.e_value);
+
+  if (bfd_seek (output_bfd, finfo->symoff, SEEK_SET) != 0
+      || bfd_write ((PTR) &outsym, (bfd_size_type) EXTERNAL_NLIST_SIZE,
+		    (bfd_size_type) 1, output_bfd) != EXTERNAL_NLIST_SIZE)
+    {
+      /* FIXME: No way to handle errors.  */
+      abort ();
+    }
+
+  finfo->symoff += EXTERNAL_NLIST_SIZE;
+  h->indx = obj_aout_external_sym_count (output_bfd);
+  ++obj_aout_external_sym_count (output_bfd);
+
+  return true;
+}
+
+/* Link an a.out section into the output file.  */
+
+static boolean
+aout_link_input_section (finfo, input_bfd, input_section, reloff_ptr,
+			 rel_size)
+     struct aout_final_link_info *finfo;
+     bfd *input_bfd;
+     asection *input_section;
+     file_ptr *reloff_ptr;
+     bfd_size_type rel_size;
+{
+  bfd_size_type input_size;
+  PTR relocs;
+
+  /* Get the section contents.  */
+  input_size = bfd_section_size (input_bfd, input_section);
+  if (! bfd_get_section_contents (input_bfd, input_section,
+				  (PTR) finfo->contents,
+				  (file_ptr) 0, input_size))
+    return false;
+
+  /* Read in the relocs if we haven't already done it.  */
+  if (aout_section_data (input_section) != NULL
+      && aout_section_data (input_section)->relocs != NULL)
+    relocs = aout_section_data (input_section)->relocs;
+  else
+    {
+      relocs = finfo->relocs;
+      if (rel_size > 0)
+	{
+	  if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0
+	      || bfd_read (relocs, 1, rel_size, input_bfd) != rel_size)
+	    return false;
+	}
+    }
+
+  /* Relocate the section contents.  */
+  if (! pdp11_aout_link_input_section (finfo, input_bfd, input_section,
+				       (struct pdp11_aout_reloc_external *) relocs,
+				       rel_size, finfo->contents))
+    return false;
+
+  /* Write out the section contents.  */
+  if (! bfd_set_section_contents (finfo->output_bfd,
+				  input_section->output_section,
+				  (PTR) finfo->contents,
+				  input_section->output_offset,
+				  input_size))
+    return false;
+
+  /* If we are producing relocateable output, the relocs were
+     modified, and we now write them out.  */
+  if (finfo->info->relocateable && rel_size > 0)
+    {
+      if (bfd_seek (finfo->output_bfd, *reloff_ptr, SEEK_SET) != 0)
+	return false;
+      if (bfd_write (relocs, (bfd_size_type) 1, rel_size, finfo->output_bfd)
+	  != rel_size)
+	return false;
+      *reloff_ptr += rel_size;
+
+      /* Assert that the relocs have not run into the symbols, and
+	 that if these are the text relocs they have not run into the
+	 data relocs.  */
+      BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (finfo->output_bfd)
+		  && (reloff_ptr != &finfo->treloff
+		      || (*reloff_ptr
+			  <= obj_datasec (finfo->output_bfd)->rel_filepos)));
+    }
+
+  return true;
+}
+
+/* Get the section corresponding to a reloc index.  */
+
+static INLINE asection *
+aout_reloc_type_to_section (abfd, type)
+     bfd *abfd;
+     int type;
+{
+  switch (type)
+    {
+    case RTEXT:
+      return obj_textsec (abfd);
+    case RDATA:
+      return obj_datasec (abfd);
+    case RBSS:
+      return obj_bsssec (abfd);
+    case RABS:
+      return bfd_abs_section_ptr;
+    case REXT:
+      return bfd_und_section_ptr;
+    default:
+      abort ();
+    }
+}
+
+static boolean
+pdp11_aout_link_input_section (finfo, input_bfd, input_section, relocs,
+			       rel_size, contents)
+     struct aout_final_link_info *finfo;
+     bfd *input_bfd;
+     asection *input_section;
+     struct pdp11_aout_reloc_external *relocs;
+     bfd_size_type rel_size;
+     bfd_byte *contents;
+{
+  boolean (*check_dynamic_reloc) PARAMS ((struct bfd_link_info *,
+					  bfd *, asection *,
+					  struct aout_link_hash_entry *,
+					  PTR, bfd_byte *, boolean *,
+					  bfd_vma *));
+  bfd *output_bfd;
+  boolean relocateable;
+  struct external_nlist *syms;
+  char *strings;
+  struct aout_link_hash_entry **sym_hashes;
+  int *symbol_map;
+  bfd_size_type reloc_count;
+  register struct pdp11_aout_reloc_external *rel;
+  struct pdp11_aout_reloc_external *rel_end;
+
+  output_bfd = finfo->output_bfd;
+  check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
+
+  BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_SIZE);
+  BFD_ASSERT (input_bfd->xvec->header_byteorder
+	      == output_bfd->xvec->header_byteorder);
+
+  relocateable = finfo->info->relocateable;
+  syms = obj_aout_external_syms (input_bfd);
+  strings = obj_aout_external_strings (input_bfd);
+  sym_hashes = obj_aout_sym_hashes (input_bfd);
+  symbol_map = finfo->symbol_map;
+
+  reloc_count = rel_size / RELOC_SIZE;
+  rel = relocs;
+  rel_end = (struct pdp11_aout_reloc_external *)(((char *)rel) + rel_size);
+  for (; rel < rel_end; ((char *)rel) += RELOC_SIZE)
+    {
+      bfd_vma r_addr;
+      int r_index;
+      int r_type;
+      int r_pcrel;
+      int r_extern;
+      reloc_howto_type *howto;
+      struct aout_link_hash_entry *h = NULL;
+      bfd_vma relocation;
+      bfd_reloc_status_type r;
+      int reloc_entry;
+
+      reloc_entry = GET_WORD (input_bfd, (PTR)rel);
+      if (reloc_entry == 0)
+	continue;
+
+      {
+	unsigned int howto_idx;
+
+	r_index = (reloc_entry & RIDXMASK) >> 4;
+	r_type = reloc_entry & RTYPE;
+	r_pcrel = reloc_entry & RELFLG;
+	r_addr = (char *)rel - (char *)relocs;
+
+	r_extern = (r_type == REXT);
+
+	howto_idx = r_pcrel;
+	BFD_ASSERT (howto_idx < TABLE_SIZE (howto_table_pdp11));
+	howto = howto_table_pdp11 + howto_idx;
+      }
+
+      if (relocateable)
+	{
+	  /* We are generating a relocateable output file, and must
+	     modify the reloc accordingly.  */
+	  if (r_extern)
+	    {
+	      /* If we know the symbol this relocation is against,
+		 convert it into a relocation against a section.  This
+		 is what the native linker does.  */
+	      h = sym_hashes[r_index];
+	      if (h != (struct aout_link_hash_entry *) NULL
+		  && (h->root.type == bfd_link_hash_defined
+		      || h->root.type == bfd_link_hash_defweak))
+		{
+		  asection *output_section;
+
+		  /* Compute a new r_index.  */
+		  output_section = h->root.u.def.section->output_section;
+		  if (output_section == obj_textsec (output_bfd))
+		    r_type = N_TEXT;
+		  else if (output_section == obj_datasec (output_bfd))
+		    r_type = N_DATA;
+		  else if (output_section == obj_bsssec (output_bfd))
+		    r_type = N_BSS;
+		  else
+		    r_type = N_ABS;
+
+		  /* Add the symbol value and the section VMA to the
+		     addend stored in the contents.  */
+		  relocation = (h->root.u.def.value
+				+ output_section->vma
+				+ h->root.u.def.section->output_offset);
+		}
+	      else
+		{
+		  /* We must change r_index according to the symbol
+		     map.  */
+		  r_index = symbol_map[r_index];
+
+		  if (r_index == -1)
+		    {
+		      if (h != NULL)
+			{
+			  /* We decided to strip this symbol, but it
+                             turns out that we can't.  Note that we
+                             lose the other and desc information here.
+                             I don't think that will ever matter for a
+                             global symbol.  */
+			  if (h->indx < 0)
+			    {
+			      h->indx = -2;
+			      h->written = false;
+			      if (! aout_link_write_other_symbol (h,
+								  (PTR) finfo))
+				return false;
+			    }
+			  r_index = h->indx;
+			}
+		      else
+			{
+			  const char *name;
+
+			  name = strings + GET_WORD (input_bfd,
+						     syms[r_index].e_strx);
+			  if (! ((*finfo->info->callbacks->unattached_reloc)
+				 (finfo->info, name, input_bfd, input_section,
+				  r_addr)))
+			    return false;
+			  r_index = 0;
+			}
+		    }
+
+		  relocation = 0;
+		}
+
+	      /* Write out the new r_index value.  */
+	      reloc_entry = GET_WORD (input_bfd, rel->e_reloc_entry);
+	      reloc_entry &= RIDXMASK;
+	      reloc_entry |= r_index << 4;
+	      PUT_WORD (input_bfd, reloc_entry, rel->e_reloc_entry);
+	    }
+	  else
+	    {
+	      asection *section;
+
+	      /* This is a relocation against a section.  We must
+		 adjust by the amount that the section moved.  */
+	      section = aout_reloc_type_to_section (input_bfd, r_type);
+	      relocation = (section->output_section->vma
+			    + section->output_offset
+			    - section->vma);
+	    }
+
+	  /* Change the address of the relocation.  */
+#if 0
+	  PUT_WORD (output_bfd,
+		    r_addr + input_section->output_offset,
+		    rel->r_address);
+#else
+fprintf (stderr, "TODO: change the address of the relocation\n");
+#endif
+
+	  /* Adjust a PC relative relocation by removing the reference
+	     to the original address in the section and including the
+	     reference to the new address.  */
+	  if (r_pcrel)
+	    relocation -= (input_section->output_section->vma
+			   + input_section->output_offset
+			   - input_section->vma);
+
+#ifdef MY_relocatable_reloc
+	  MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr);
+#endif
+
+	  if (relocation == 0)
+	    r = bfd_reloc_ok;
+	  else
+	    r = MY_relocate_contents (howto,
+				      input_bfd, relocation,
+				      contents + r_addr);
+	}
+      else
+	{
+	  boolean hundef;
+
+	  /* We are generating an executable, and must do a full
+	     relocation.  */
+	  hundef = false;
+	  if (r_extern)
+	    {
+	      h = sym_hashes[r_index];
+
+	      if (h != (struct aout_link_hash_entry *) NULL
+		  && (h->root.type == bfd_link_hash_defined
+		      || h->root.type == bfd_link_hash_defweak))
+		{
+		  relocation = (h->root.u.def.value
+				+ h->root.u.def.section->output_section->vma
+				+ h->root.u.def.section->output_offset);
+		}
+	      else if (h != (struct aout_link_hash_entry *) NULL
+		       && h->root.type == bfd_link_hash_undefweak)
+		relocation = 0;
+	      else
+		{
+		  hundef = true;
+		  relocation = 0;
+		}
+	    }
+	  else
+	    {
+	      asection *section;
+
+	      section = aout_reloc_type_to_section (input_bfd, r_type);
+	      relocation = (section->output_section->vma
+			    + section->output_offset
+			    - section->vma);
+	      if (r_pcrel)
+		relocation += input_section->vma;
+	    }
+
+	  if (check_dynamic_reloc != NULL)
+	    {
+	      boolean skip;
+
+	      if (! ((*check_dynamic_reloc)
+		     (finfo->info, input_bfd, input_section, h,
+		      (PTR) rel, contents, &skip, &relocation)))
+		return false;
+	      if (skip)
+		continue;
+	    }
+
+	  /* Now warn if a global symbol is undefined.  We could not
+             do this earlier, because check_dynamic_reloc might want
+             to skip this reloc.  */
+	  if (hundef && ! finfo->info->shared)
+	    {
+	      const char *name;
+
+	      if (h != NULL)
+		name = h->root.root.string;
+	      else
+		name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
+	      if (! ((*finfo->info->callbacks->undefined_symbol)
+		     (finfo->info, name, input_bfd, input_section,
+		      r_addr, true)))
+		return false;
+	    }
+
+	  r = MY_final_link_relocate (howto,
+				      input_bfd, input_section,
+				      contents, r_addr, relocation,
+				      (bfd_vma) 0);
+	}
+
+      if (r != bfd_reloc_ok)
+	{
+	  switch (r)
+	    {
+	    default:
+	    case bfd_reloc_outofrange:
+	      abort ();
+	    case bfd_reloc_overflow:
+	      {
+		const char *name;
+
+		if (h != NULL)
+		  name = h->root.root.string;
+		else if (r_extern)
+		  name = strings + GET_WORD (input_bfd,
+					     syms[r_index].e_strx);
+		else
+		  {
+		    asection *s;
+
+		    s = aout_reloc_type_to_section (input_bfd, r_type);
+		    name = bfd_section_name (input_bfd, s);
+		  }
+		if (! ((*finfo->info->callbacks->reloc_overflow)
+		       (finfo->info, name, howto->name,
+			(bfd_vma) 0, input_bfd, input_section, r_addr)))
+		  return false;
+	      }
+	      break;
+	    }
+	}
+    }
+
+  return true;
+}
+
+/* Handle a link order which is supposed to generate a reloc.  */
+
+static boolean
+aout_link_reloc_link_order (finfo, o, p)
+     struct aout_final_link_info *finfo;
+     asection *o;
+     struct bfd_link_order *p;
+{
+  struct bfd_link_order_reloc *pr;
+  int r_index;
+  int r_extern;
+  reloc_howto_type *howto;
+  file_ptr *reloff_ptr;
+  struct reloc_std_external srel;
+  PTR rel_ptr;
+
+  pr = p->u.reloc.p;
+
+  if (p->type == bfd_section_reloc_link_order)
+    {
+      r_extern = 0;
+      if (bfd_is_abs_section (pr->u.section))
+	r_index = N_ABS | N_EXT;
+      else
+	{
+	  BFD_ASSERT (pr->u.section->owner == finfo->output_bfd);
+	  r_index = pr->u.section->target_index;
+	}
+    }
+  else
+    {
+      struct aout_link_hash_entry *h;
+
+      BFD_ASSERT (p->type == bfd_symbol_reloc_link_order);
+      r_extern = 1;
+      h = ((struct aout_link_hash_entry *)
+	   bfd_wrapped_link_hash_lookup (finfo->output_bfd, finfo->info,
+					 pr->u.name, false, false, true));
+      if (h != (struct aout_link_hash_entry *) NULL
+	  && h->indx >= 0)
+	r_index = h->indx;
+      else if (h != NULL)
+	{
+	  /* We decided to strip this symbol, but it turns out that we
+	     can't.  Note that we lose the other and desc information
+	     here.  I don't think that will ever matter for a global
+	     symbol.  */
+	  h->indx = -2;
+	  h->written = false;
+	  if (! aout_link_write_other_symbol (h, (PTR) finfo))
+	    return false;
+	  r_index = h->indx;
+	}
+      else
+	{
+	  if (! ((*finfo->info->callbacks->unattached_reloc)
+		 (finfo->info, pr->u.name, (bfd *) NULL,
+		  (asection *) NULL, (bfd_vma) 0)))
+	    return false;
+	  r_index = 0;
+	}
+    }
+
+  howto = bfd_reloc_type_lookup (finfo->output_bfd, pr->reloc);
+  if (howto == 0)
+    {
+      bfd_set_error (bfd_error_bad_value);
+      return false;
+    }
+
+  if (o == obj_textsec (finfo->output_bfd))
+    reloff_ptr = &finfo->treloff;
+  else if (o == obj_datasec (finfo->output_bfd))
+    reloff_ptr = &finfo->dreloff;
+  else
+    abort ();
+
+#ifdef MY_put_reloc
+  MY_put_reloc(finfo->output_bfd, r_extern, r_index, p->offset, howto,
+	       &srel);
+#else
+  {
+    int r_pcrel;
+    int r_baserel;
+    int r_jmptable;
+    int r_relative;
+    int r_length;
+
+    fprintf (stderr, "TODO: line %d in bfd/pdp11.c\n", __LINE__);
+
+    r_pcrel = howto->pc_relative;
+    r_baserel = (howto->type & 8) != 0;
+    r_jmptable = (howto->type & 16) != 0;
+    r_relative = (howto->type & 32) != 0;
+    r_length = howto->size;
+
+    PUT_WORD (finfo->output_bfd, p->offset, srel.r_address);
+    if (bfd_header_big_endian (finfo->output_bfd))
+      {
+	srel.r_index[0] = r_index >> 16;
+	srel.r_index[1] = r_index >> 8;
+	srel.r_index[2] = r_index;
+	srel.r_type[0] =
+	  ((r_extern ?     RELOC_STD_BITS_EXTERN_BIG : 0)
+	   | (r_pcrel ?    RELOC_STD_BITS_PCREL_BIG : 0)
+	   | (r_baserel ?  RELOC_STD_BITS_BASEREL_BIG : 0)
+	   | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
+	   | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
+	   | (r_length <<  RELOC_STD_BITS_LENGTH_SH_BIG));
+      }
+    else
+      {
+	srel.r_index[2] = r_index >> 16;
+	srel.r_index[1] = r_index >> 8;
+	srel.r_index[0] = r_index;
+	srel.r_type[0] =
+	  ((r_extern ?     RELOC_STD_BITS_EXTERN_LITTLE : 0)
+	   | (r_pcrel ?    RELOC_STD_BITS_PCREL_LITTLE : 0)
+	   | (r_baserel ?  RELOC_STD_BITS_BASEREL_LITTLE : 0)
+	   | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
+	   | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
+	   | (r_length <<  RELOC_STD_BITS_LENGTH_SH_LITTLE));
+      }
+  }
+#endif
+  rel_ptr = (PTR) &srel;
+
+  /* We have to write the addend into the object file, since
+     standard a.out relocs are in place.  It would be more
+     reliable if we had the current contents of the file here,
+     rather than assuming zeroes, but we can't read the file since
+     it was opened using bfd_openw.  */
+  if (pr->addend != 0)
+    {
+      bfd_size_type size;
+      bfd_reloc_status_type r;
+      bfd_byte *buf;
+      boolean ok;
+
+      size = bfd_get_reloc_size (howto);
+      buf = (bfd_byte *) bfd_zmalloc (size);
+      if (buf == (bfd_byte *) NULL)
+	return false;
+      r = MY_relocate_contents (howto, finfo->output_bfd,
+				pr->addend, buf);
+      switch (r)
+	{
+	case bfd_reloc_ok:
+	  break;
+	default:
+	case bfd_reloc_outofrange:
+	  abort ();
+	case bfd_reloc_overflow:
+	  if (! ((*finfo->info->callbacks->reloc_overflow)
+		 (finfo->info,
+		  (p->type == bfd_section_reloc_link_order
+		   ? bfd_section_name (finfo->output_bfd,
+				       pr->u.section)
+		   : pr->u.name),
+		  howto->name, pr->addend, (bfd *) NULL,
+		  (asection *) NULL, (bfd_vma) 0)))
+	    {
+	      free (buf);
+	      return false;
+	    }
+	  break;
+	}
+      ok = bfd_set_section_contents (finfo->output_bfd, o,
+				     (PTR) buf,
+				     (file_ptr) p->offset,
+				     size);
+      free (buf);
+      if (! ok)
+	return false;
+    }
+
+  if (bfd_seek (finfo->output_bfd, *reloff_ptr, SEEK_SET) != 0
+      || (bfd_write (rel_ptr, (bfd_size_type) 1,
+		     obj_reloc_entry_size (finfo->output_bfd),
+		     finfo->output_bfd)
+	  != obj_reloc_entry_size (finfo->output_bfd)))
+    return false;
+
+  *reloff_ptr += obj_reloc_entry_size (finfo->output_bfd);
+
+  /* Assert that the relocs have not run into the symbols, and that n
+     the text relocs have not run into the data relocs.  */
+  BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (finfo->output_bfd)
+	      && (reloff_ptr != &finfo->treloff
+		  || (*reloff_ptr
+		      <= obj_datasec (finfo->output_bfd)->rel_filepos)));
+
+  return true;
+}
+/* end of modified aoutx.h */
+
+bfd_vma
+bfd_getp32 (addr)
+     const bfd_byte *addr;
+{
+  return (((((bfd_vma)addr[1] << 8) | addr[0]) << 8)
+	  | addr[3]) << 8 | addr[2];
+}
+
+#define COERCE32(x) (((bfd_signed_vma) (x) ^ 0x80000000) - 0x80000000)
+
+bfd_signed_vma
+bfd_getp_signed_32 (addr)
+     const bfd_byte *addr;
+{
+  return COERCE32((((((bfd_vma)addr[1] << 8) | addr[0]) << 8)
+		   | addr[3]) << 8 | addr[2]);
+}
+
+void
+bfd_putp32 (data, addr)
+     bfd_vma data;
+     bfd_byte *addr;
+{
+  addr[0] = (bfd_byte)(data >> 16);
+  addr[1] = (bfd_byte)(data >> 24);
+  addr[2] = (bfd_byte)data;
+  addr[3] = (bfd_byte)(data >>  8);
+}
diff --git a/bfd/po/POTFILES.in b/bfd/po/POTFILES.in
index 1d22315..a0d42e6 100644
--- a/bfd/po/POTFILES.in
+++ b/bfd/po/POTFILES.in
@@ -82,6 +82,7 @@ cpu-m88k.c
 cpu-mcore.c
 cpu-mips.c
 cpu-ns32k.c
+cpu-pdp11.c
 cpu-pj.c
 cpu-powerpc.c
 cpu-rs6000.c
@@ -213,6 +214,7 @@ oasys.c
 opncls.c
 osf-core.c
 pc532-mach.c
+pdp11.c
 pe-arm.c
 pe-i386.c
 pei-arm.c
diff --git a/bfd/po/bfd.pot b/bfd/po/bfd.pot
index 8f39e07..8965d05 100644
--- a/bfd/po/bfd.pot
+++ b/bfd/po/bfd.pot
@@ -6,7 +6,7 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
-"POT-Creation-Date: 2001-02-18 14:28-0800\n"
+"POT-Creation-Date: 2001-02-18 15:14-0800\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -1337,6 +1337,11 @@ msgstr ""
 msgid "%s: could not find output section %s for input section %s"
 msgstr ""
 
+#: elflink.h:5559
+#, c-format
+msgid "%s: invalid section symbol index 0x%x (%s) ingored"
+msgstr ""
+
 #: i386linux.c:450 m68klinux.c:454 sparclinux.c:452
 #, c-format
 msgid "Output file requires shared library `%s'\n"
@@ -1614,29 +1619,29 @@ msgstr ""
 msgid "Object module NOT error-free !\n"
 msgstr ""
 
-#: vms-misc.c:540
+#: vms-misc.c:536
 #, c-format
 msgid "Stack overflow (%d) in _bfd_vms_push"
 msgstr ""
 
-#: vms-misc.c:558
+#: vms-misc.c:554
 msgid "Stack underflow in _bfd_vms_pop"
 msgstr ""
 
-#: vms-misc.c:916
+#: vms-misc.c:910
 msgid "_bfd_vms_output_counted called with zero bytes"
 msgstr ""
 
-#: vms-misc.c:921
+#: vms-misc.c:915
 msgid "_bfd_vms_output_counted called with too many bytes"
 msgstr ""
 
-#: vms-misc.c:1052
+#: vms-misc.c:1046
 #, c-format
 msgid "Symbol %s replaced by %s\n"
 msgstr ""
 
-#: vms-misc.c:1114
+#: vms-misc.c:1108
 #, c-format
 msgid "failed to enter %s"
 msgstr ""
diff --git a/bfd/reloc.c b/bfd/reloc.c
index 9d45163..07cf691 100644
--- a/bfd/reloc.c
+++ b/bfd/reloc.c
@@ -2108,6 +2108,13 @@ ENUMDOC
   ns32k relocations
 
 ENUM
+  BFD_RELOC_PDP11_DISP_8_PCREL
+ENUMX
+  BFD_RELOC_PDP11_DISP_6_PCREL
+ENUMDOC
+  PDP11 relocations
+
+ENUM
   BFD_RELOC_PJ_CODE_HI16
 ENUMX
   BFD_RELOC_PJ_CODE_LO16
diff --git a/bfd/targets.c b/bfd/targets.c
index 70b262d..a712efd 100644
--- a/bfd/targets.c
+++ b/bfd/targets.c
@@ -624,6 +624,7 @@ extern const bfd_target nlm32_sparc_vec;
 extern const bfd_target oasys_vec;
 extern const bfd_target pc532machaout_vec;
 extern const bfd_target pc532netbsd_vec;
+extern const bfd_target pdp11_aout_vec;
 extern const bfd_target pmac_xcoff_vec;
 extern const bfd_target ppcboot_vec;
 extern const bfd_target riscix_vec;
@@ -884,6 +885,7 @@ static const bfd_target * const _bfd_target_vector[] = {
 	&oasys_vec,
 #endif
 	&pc532machaout_vec,
+	&pdp11_aout_vec,
 #if 0
 	/* We have no way of distinguishing these from other a.out variants */
 	&aout_arm_big_vec,