19990502 sourceware importbinu_ss_19990502

1 files changed, 1045 insertions, 0 deletions

diff --git a/bfd/nlm32-ppc.c b/bfd/nlm32-ppc.c
new file mode 100644
index 0000000..ecf2de8
--- /dev/null
+++ b/bfd/nlm32-ppc.c
@@ -0,0 +1,1045 @@
+/* Support for 32-bit PowerPC NLM (NetWare Loadable Module)
+   Copyright (C) 1994, 1995 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"
+
+/* The format of a PowerPC NLM changed.  Define OLDFORMAT to get the
+   old format.  */
+
+#define ARCH_SIZE 32
+
+#include "nlm/ppc-ext.h"
+#define Nlm_External_Fixed_Header	Nlm32_powerpc_External_Fixed_Header
+
+#include "libnlm.h"
+
+#ifdef OLDFORMAT
+static boolean nlm_powerpc_backend_object_p
+  PARAMS ((bfd *));
+static boolean nlm_powerpc_write_prefix
+  PARAMS ((bfd *));
+#endif
+
+static boolean nlm_powerpc_read_reloc
+  PARAMS ((bfd *, nlmNAME(symbol_type) *, asection **, arelent *));
+static boolean nlm_powerpc_mangle_relocs
+  PARAMS ((bfd *, asection *, PTR, bfd_vma, bfd_size_type));
+static boolean nlm_powerpc_read_import
+  PARAMS ((bfd *, nlmNAME(symbol_type) *));
+
+#ifdef OLDFORMAT
+static boolean nlm_powerpc_write_reloc
+  PARAMS ((bfd *, asection *, arelent *, int));
+#endif
+
+static boolean nlm_powerpc_write_import
+  PARAMS ((bfd *, asection *, arelent *));
+static boolean nlm_powerpc_write_external
+  PARAMS ((bfd *, bfd_size_type, asymbol *, struct reloc_and_sec *));
+
+#ifndef OLDFORMAT
+static boolean nlm_powerpc_set_public_section
+  PARAMS ((bfd *, nlmNAME(symbol_type) *));
+static bfd_vma nlm_powerpc_get_public_offset
+  PARAMS ((bfd *, asymbol *));
+#endif
+
+#ifdef OLDFORMAT
+
+/* The prefix header is only used in the old format.  */
+
+/* PowerPC NLM's have a prefix header before the standard NLM.  This
+   function reads it in, verifies the version, and seeks the bfd to
+   the location before the regular NLM header.  */
+
+static boolean
+nlm_powerpc_backend_object_p (abfd)
+     bfd *abfd;
+{
+  struct nlm32_powerpc_external_prefix_header s;
+
+  if (bfd_read ((PTR) &s, sizeof s, 1, abfd) != sizeof s)
+    return false;
+
+  if (memcmp (s.signature, NLM32_POWERPC_SIGNATURE, sizeof s.signature) != 0
+      || bfd_h_get_32 (abfd, s.headerVersion) != NLM32_POWERPC_HEADER_VERSION)
+    return false;
+
+  return true;
+}
+
+/* Write out the prefix.  */
+
+static boolean
+nlm_powerpc_write_prefix (abfd)
+     bfd *abfd;
+{
+  struct nlm32_powerpc_external_prefix_header s;
+
+  memset (&s, 0, sizeof s);
+  memcpy (s.signature, NLM32_POWERPC_SIGNATURE, sizeof s.signature);
+  bfd_h_put_32 (abfd, (bfd_vma) NLM32_POWERPC_HEADER_VERSION, s.headerVersion);
+  bfd_h_put_32 (abfd, (bfd_vma) 0, s.origins);
+
+  /* FIXME: What should we do about the date?  */
+
+  if (bfd_write ((PTR) &s, sizeof s, 1, abfd) != sizeof s)
+    return false;
+
+  return true;
+}
+
+#endif /* OLDFORMAT */
+
+#ifndef OLDFORMAT
+
+/* There is only one type of reloc in a PowerPC NLM.  */
+
+static reloc_howto_type nlm_powerpc_howto =
+  HOWTO (0,			/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 32,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,			/* special_function */
+	 "32",			/* name */
+	 true,			/* partial_inplace */
+	 0xffffffff,		/* src_mask */
+	 0xffffffff,		/* dst_mask */
+	 false);		/* pcrel_offset */
+
+/* Read a PowerPC NLM reloc.  */
+
+static boolean
+nlm_powerpc_read_reloc (abfd, sym, secp, rel)
+     bfd *abfd;
+     nlmNAME(symbol_type) *sym;
+     asection **secp;
+     arelent *rel;
+{
+  bfd_byte temp[4];
+  bfd_vma val;
+  const char *name;
+
+  if (bfd_read (temp, sizeof (temp), 1, abfd) != sizeof (temp))
+    return false;
+
+  val = bfd_get_32 (abfd, temp);
+
+  /* The value is a word offset into either the code or data segment.
+     This is the location which needs to be adjusted.
+
+     The high bit is 0 if the value is an offset into the data
+     segment, or 1 if the value is an offset into the text segment.
+
+     If this is a relocation fixup rather than an imported symbol (the
+     sym argument is NULL), then the second most significant bit is 0
+     if the address of the data segment should be added to the
+     location addressed by the value, or 1 if the address of the text
+     segment should be added.
+
+     If this is an imported symbol, the second most significant bit is
+     not used and must be 0.  */
+
+  if ((val & NLM_HIBIT) == 0)
+    name = NLM_INITIALIZED_DATA_NAME;
+  else
+    {
+      name = NLM_CODE_NAME;
+      val &=~ NLM_HIBIT;
+    }
+  *secp = bfd_get_section_by_name (abfd, name);
+
+  if (sym == NULL)
+    {
+      if ((val & (NLM_HIBIT >> 1)) == 0)
+	name = NLM_INITIALIZED_DATA_NAME;
+      else
+	{
+	  name = NLM_CODE_NAME;
+	  val &=~ (NLM_HIBIT >> 1);
+	}
+      rel->sym_ptr_ptr = bfd_get_section_by_name (abfd, name)->symbol_ptr_ptr;
+    }
+
+  rel->howto = &nlm_powerpc_howto;
+
+  rel->address = val << 2;
+  rel->addend = 0;
+
+  return true;
+}
+
+#else /* OLDFORMAT */
+
+/* This reloc handling is only applicable to the old format.  */
+
+/* How to process the various reloc types.  PowerPC NLMs use XCOFF
+   reloc types, and I have just copied the XCOFF reloc table here.  */
+
+static reloc_howto_type nlm_powerpc_howto_table[] =
+{
+  /* Standard 32 bit relocation.  */
+  HOWTO (0,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 32,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_POS",               /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffffffff,            /* src_mask */                             
+	 0xffffffff,            /* dst_mask */                             
+	 false),                /* pcrel_offset */
+
+  /* 32 bit relocation, but store negative value.  */
+  HOWTO (1,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 -2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 32,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_NEG",               /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffffffff,            /* src_mask */                             
+	 0xffffffff,            /* dst_mask */                             
+	 false),                /* pcrel_offset */
+
+  /* 32 bit PC relative relocation.  */
+  HOWTO (2,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 32,	                /* bitsize */                   
+	 true,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_signed, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_REL",               /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffffffff,            /* src_mask */                             
+	 0xffffffff,            /* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  /* 16 bit TOC relative relocation.  */
+  HOWTO (3,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 16,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_signed, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_TOC",               /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffff,	        /* src_mask */                             
+	 0xffff,        	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  /* I don't really know what this is.  */
+  HOWTO (4,	                /* type */                                 
+	 1,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 32,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_RTB",               /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffffffff,	        /* src_mask */                             
+	 0xffffffff,        	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  /* External TOC relative symbol.  */
+  HOWTO (5,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 16,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_GL",                /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffff,	        /* src_mask */                             
+	 0xffff,        	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  /* Local TOC relative symbol.  */
+  HOWTO (6,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 16,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_TCL",               /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffff,	        /* src_mask */                             
+	 0xffff,        	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  { 7 },
+  
+  /* Non modifiable absolute branch.  */
+  HOWTO (8,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 26,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_BA",                /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0x3fffffc,	        /* src_mask */                             
+	 0x3fffffc,        	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  { 9 },
+
+  /* Non modifiable relative branch.  */
+  HOWTO (0xa,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 26,	                /* bitsize */                   
+	 true,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_signed, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_BR",                /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0x3fffffc,	        /* src_mask */                             
+	 0x3fffffc,        	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  { 0xb },
+
+  /* Indirect load.  */
+  HOWTO (0xc,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 16,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_RL",                /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffff,	        /* src_mask */                             
+	 0xffff,        	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  /* Load address.  */
+  HOWTO (0xd,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 16,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_RLA",               /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffff,	        /* src_mask */                             
+	 0xffff,        	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  { 0xe },
+  
+  /* Non-relocating reference.  */
+  HOWTO (0xf,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 32,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_REF",               /* name */                                 
+	 false,	                /* partial_inplace */                      
+	 0,		        /* src_mask */                             
+	 0,     	   	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  { 0x10 },
+  { 0x11 },
+  
+  /* TOC relative indirect load.  */
+  HOWTO (0x12,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 16,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_TRL",               /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffff,	        /* src_mask */                             
+	 0xffff,        	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  /* TOC relative load address.  */
+  HOWTO (0x13,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 16,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_TRLA",              /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffff,	        /* src_mask */                             
+	 0xffff,        	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  /* Modifiable relative branch.  */
+  HOWTO (0x14,	                /* type */                                 
+	 1,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 32,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_RRTBI",             /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffffffff,	        /* src_mask */                             
+	 0xffffffff,        	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  /* Modifiable absolute branch.  */
+  HOWTO (0x15,	                /* type */                                 
+	 1,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 32,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_RRTBA",             /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffffffff,	        /* src_mask */                             
+	 0xffffffff,        	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  /* Modifiable call absolute indirect.  */
+  HOWTO (0x16,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 16,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_CAI",               /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffff,	        /* src_mask */                             
+	 0xffff,        	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  /* Modifiable call relative.  */
+  HOWTO (0x17,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 16,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_REL",               /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffff,	        /* src_mask */                             
+	 0xffff,        	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  /* Modifiable branch absolute.  */
+  HOWTO (0x18,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 16,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_RBA",               /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffff,	        /* src_mask */                             
+	 0xffff,        	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  /* Modifiable branch absolute.  */
+  HOWTO (0x19,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 16,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_RBAC",              /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffff,	        /* src_mask */                             
+	 0xffff,        	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  /* Modifiable branch relative.  */
+  HOWTO (0x1a,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 26,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_signed, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_REL",               /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffff,	        /* src_mask */                             
+	 0xffff,        	/* dst_mask */                             
+	 false),                /* pcrel_offset */
+  
+  /* Modifiable branch absolute.  */
+  HOWTO (0x1b,	                /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 16,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 0,		        /* special_function */                     
+	 "R_REL",               /* name */                                 
+	 true,	                /* partial_inplace */                      
+	 0xffff,	        /* src_mask */                             
+	 0xffff,        	/* dst_mask */                             
+	 false)                 /* pcrel_offset */
+};
+
+#define HOWTO_COUNT (sizeof nlm_powerpc_howto_table		\
+		     / sizeof nlm_powerpc_howto_table[0])
+
+/* Read a PowerPC NLM reloc.  */
+
+static boolean
+nlm_powerpc_read_reloc (abfd, sym, secp, rel)
+     bfd *abfd;
+     nlmNAME(symbol_type) *sym;
+     asection **secp;
+     arelent *rel;
+{
+  struct nlm32_powerpc_external_reloc ext;
+  bfd_vma l_vaddr;
+  unsigned long l_symndx;
+  int l_rtype;
+  int l_rsecnm;
+  asection *code_sec, *data_sec, *bss_sec;
+
+  /* Read the reloc from the file.  */
+  if (bfd_read (&ext, sizeof ext, 1, abfd) != sizeof ext)
+    return false;
+
+  /* Swap in the fields.  */
+  l_vaddr = bfd_h_get_32 (abfd, ext.l_vaddr);
+  l_symndx = bfd_h_get_32 (abfd, ext.l_symndx);
+  l_rtype = bfd_h_get_16 (abfd, ext.l_rtype);
+  l_rsecnm = bfd_h_get_16 (abfd, ext.l_rsecnm);
+
+  /* Get the sections now, for convenience.  */
+  code_sec = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
+  data_sec = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
+  bss_sec = bfd_get_section_by_name (abfd, NLM_UNINITIALIZED_DATA_NAME);
+
+  /* Work out the arelent fields.  */
+  if (sym != NULL)
+    {
+      /* This is an import.  sym_ptr_ptr is filled in by
+	 nlm_canonicalize_reloc.  */
+      rel->sym_ptr_ptr = NULL;
+    }
+  else
+    {
+      asection *sec;
+
+      if (l_symndx == 0)
+	sec = code_sec;
+      else if (l_symndx == 1)
+	sec = data_sec;
+      else if (l_symndx == 2)
+	sec = bss_sec;
+      else
+	{
+	  bfd_set_error (bfd_error_bad_value);
+	  return false;
+	}
+
+      rel->sym_ptr_ptr = sec->symbol_ptr_ptr;
+    }
+
+  rel->addend = 0;
+
+  BFD_ASSERT ((l_rtype & 0xff) < HOWTO_COUNT);
+
+  rel->howto = nlm_powerpc_howto_table + (l_rtype & 0xff);
+
+  BFD_ASSERT (rel->howto->name != NULL
+	      && ((l_rtype & 0x8000) != 0
+		  ? (rel->howto->complain_on_overflow
+		     == complain_overflow_signed)
+		  : (rel->howto->complain_on_overflow
+		     == complain_overflow_bitfield))
+	      && ((l_rtype >> 8) & 0x1f) == rel->howto->bitsize - 1);
+
+  if (l_rsecnm == 0)
+    *secp = code_sec;
+  else if (l_rsecnm == 1)
+    {
+      *secp = data_sec;
+      l_vaddr -= bfd_section_size (abfd, code_sec);
+    }
+  else
+    {
+      bfd_set_error (bfd_error_bad_value);
+      return false;
+    }
+
+  rel->address = l_vaddr;
+
+  return true;
+}
+
+#endif /* OLDFORMAT */
+
+/* Mangle PowerPC NLM relocs for output.  */
+
+static boolean
+nlm_powerpc_mangle_relocs (abfd, sec, data, offset, count)
+     bfd *abfd;
+     asection *sec;
+     PTR data;
+     bfd_vma offset;
+     bfd_size_type count;
+{
+  return true;
+}
+
+/* Read a PowerPC NLM import record */
+
+static boolean
+nlm_powerpc_read_import (abfd, sym)
+     bfd *abfd;
+     nlmNAME(symbol_type) *sym;
+{
+  struct nlm_relent *nlm_relocs;	/* relocation records for symbol */
+  bfd_size_type rcount;			/* number of relocs */
+  bfd_byte temp[NLM_TARGET_LONG_SIZE];	/* temporary 32-bit value */
+  unsigned char symlength;		/* length of symbol name */
+  char *name;
+
+  if (bfd_read ((PTR) &symlength, sizeof (symlength), 1, abfd)
+      != sizeof (symlength))
+    return (false);
+  sym -> symbol.the_bfd = abfd;
+  name = bfd_alloc (abfd, symlength + 1);
+  if (name == NULL)
+    return false;
+  if (bfd_read (name, symlength, 1, abfd) != symlength)
+    return (false);
+  name[symlength] = '\0';
+  sym -> symbol.name = name;
+  sym -> symbol.flags = 0;
+  sym -> symbol.value = 0;
+  sym -> symbol.section = bfd_und_section_ptr;
+  if (bfd_read ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp))
+    return (false);
+  rcount = bfd_h_get_32 (abfd, temp);
+  nlm_relocs = ((struct nlm_relent *)
+		bfd_alloc (abfd, rcount * sizeof (struct nlm_relent)));
+  if (nlm_relocs == (struct nlm_relent *) NULL)
+    return false;
+  sym -> relocs = nlm_relocs;
+  sym -> rcnt = 0;
+  while (sym -> rcnt < rcount)
+    {
+      asection *section;
+      
+      if (nlm_powerpc_read_reloc (abfd, sym, &section,
+				  &nlm_relocs -> reloc)
+	  == false)
+	return false;
+      nlm_relocs -> section = section;
+      nlm_relocs++;
+      sym -> rcnt++;
+    }
+  return true;
+}
+
+#ifndef OLDFORMAT
+
+/* Write a PowerPC NLM reloc.  */
+
+static boolean
+nlm_powerpc_write_import (abfd, sec, rel)
+     bfd *abfd;
+     asection *sec;
+     arelent *rel;
+{
+  asymbol *sym;
+  bfd_vma val;
+  bfd_byte temp[4];
+
+  /* PowerPC NetWare only supports one kind of reloc.  */
+  if (rel->addend != 0
+      || rel->howto == NULL
+      || rel->howto->rightshift != 0
+      || rel->howto->size != 2
+      || rel->howto->bitsize != 32
+      || rel->howto->bitpos != 0
+      || rel->howto->pc_relative
+      || (rel->howto->src_mask != 0xffffffff && rel->addend != 0)
+      || rel->howto->dst_mask != 0xffffffff)
+    {
+      bfd_set_error (bfd_error_invalid_operation);
+      return false;
+    }
+
+  sym = *rel->sym_ptr_ptr;
+
+  /* The value we write out is the offset into the appropriate
+     segment, rightshifted by two.  This offset is the section vma,
+     adjusted by the vma of the lowest section in that segment, plus
+     the address of the relocation.  */
+  val = bfd_get_section_vma (abfd, sec) + rel->address;
+  if ((val & 3) != 0)
+    {
+      bfd_set_error (bfd_error_bad_value);
+      return false;
+    }
+  val >>= 2;
+
+  /* The high bit is 0 if the reloc is in the data section, or 1 if
+     the reloc is in the code section.  */
+  if (bfd_get_section_flags (abfd, sec) & SEC_DATA)
+    val -= nlm_get_data_low (abfd);
+  else
+    {
+      val -= nlm_get_text_low (abfd);
+      val |= NLM_HIBIT;
+    }
+    
+  if (! bfd_is_und_section (bfd_get_section (sym)))
+    {
+      /* This is an internal relocation fixup.  The second most
+	 significant bit is 0 if this is a reloc against the data
+	 segment, or 1 if it is a reloc against the text segment.  */
+      if (bfd_get_section_flags (abfd, bfd_get_section (sym)) & SEC_CODE)
+	val |= NLM_HIBIT >> 1;
+    }
+
+  bfd_put_32 (abfd, val, temp);
+  if (bfd_write (temp, sizeof (temp), 1, abfd) != sizeof (temp))
+    return false;
+
+  return true;
+}
+
+#else /* OLDFORMAT */
+
+/* This is used for the reloc handling in the old format.  */
+
+/* Write a PowerPC NLM reloc.  */
+
+static boolean
+nlm_powerpc_write_reloc (abfd, sec, rel, indx)
+     bfd *abfd;
+     asection *sec;
+     arelent *rel;
+     int indx;
+{
+  struct nlm32_powerpc_external_reloc ext;
+  asection *code_sec, *data_sec, *bss_sec;
+  asymbol *sym;
+  asection *symsec;
+  unsigned long l_symndx;
+  int l_rtype;
+  int l_rsecnm;
+  reloc_howto_type *howto;
+  bfd_size_type address;
+
+  /* Get the sections now, for convenience.  */
+  code_sec = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
+  data_sec = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
+  bss_sec = bfd_get_section_by_name (abfd, NLM_UNINITIALIZED_DATA_NAME);
+
+  sym = *rel->sym_ptr_ptr;
+  symsec = bfd_get_section (sym);
+  if (indx != -1)
+    {
+      BFD_ASSERT (bfd_is_und_section (symsec));
+      l_symndx = indx + 3;
+    }
+  else
+    {
+      if (symsec == code_sec)
+	l_symndx = 0;
+      else if (symsec == data_sec)
+	l_symndx = 1;
+      else if (symsec == bss_sec)
+	l_symndx = 2;
+      else
+	{
+	  bfd_set_error (bfd_error_bad_value);
+	  return false;
+	}
+    }
+
+  bfd_h_put_32 (abfd, (bfd_vma) l_symndx, ext.l_symndx);
+
+  for (howto = nlm_powerpc_howto_table;
+       howto < nlm_powerpc_howto_table + HOWTO_COUNT;
+       howto++)
+    {
+      if (howto->rightshift == rel->howto->rightshift
+	  && howto->size == rel->howto->size
+	  && howto->bitsize == rel->howto->bitsize
+	  && howto->pc_relative == rel->howto->pc_relative
+	  && howto->bitpos == rel->howto->bitpos
+	  && (howto->partial_inplace == rel->howto->partial_inplace
+	      || (! rel->howto->partial_inplace
+		  && rel->addend == 0))
+	  && (howto->src_mask == rel->howto->src_mask
+	      || (rel->howto->src_mask == 0
+		  && rel->addend == 0))
+	  && howto->dst_mask == rel->howto->dst_mask
+	  && howto->pcrel_offset == rel->howto->pcrel_offset)
+	break;
+    }
+  if (howto >= nlm_powerpc_howto_table + HOWTO_COUNT)
+    {
+      bfd_set_error (bfd_error_bad_value);
+      return false;
+    }
+
+  l_rtype = howto->type;
+  if (howto->complain_on_overflow == complain_overflow_signed)
+    l_rtype |= 0x8000;
+  l_rtype |= (howto->bitsize - 1) << 8;
+  bfd_h_put_16 (abfd, (bfd_vma) l_rtype, ext.l_rtype);
+
+  address = rel->address;
+
+  if (sec == code_sec)
+    l_rsecnm = 0;
+  else if (sec == data_sec)
+    {
+      l_rsecnm = 1;
+      address += bfd_section_size (abfd, code_sec);
+    }
+  else
+    {
+      bfd_set_error (bfd_error_bad_value);
+      return false;
+    }
+
+  bfd_h_put_16 (abfd, (bfd_vma) l_rsecnm, ext.l_rsecnm);
+  bfd_h_put_32 (abfd, (bfd_vma) address, ext.l_vaddr);
+
+  if (bfd_write (&ext, sizeof ext, 1, abfd) != sizeof ext)
+    return false;
+
+  return true;
+}
+
+/* Write a PowerPC NLM import.  */
+
+static boolean
+nlm_powerpc_write_import (abfd, sec, rel)
+     bfd *abfd;
+     asection *sec;
+     arelent *rel;
+{
+  return nlm_powerpc_write_reloc (abfd, sec, rel, -1);
+}
+
+#endif /* OLDFORMAT */
+
+/* Write a PowerPC NLM external symbol.  This routine keeps a static
+   count of the symbol index.  FIXME: I don't know if this is
+   necessary, and the index never gets reset.  */
+
+static boolean
+nlm_powerpc_write_external (abfd, count, sym, relocs)
+     bfd *abfd;
+     bfd_size_type count;
+     asymbol *sym;
+     struct reloc_and_sec *relocs;
+{
+  unsigned int i;
+  bfd_byte len;
+  unsigned char temp[NLM_TARGET_LONG_SIZE];
+#ifdef OLDFORMAT
+  static int indx;
+#endif
+
+  len = strlen (sym->name);
+  if ((bfd_write (&len, sizeof (bfd_byte), 1, abfd) != sizeof(bfd_byte))
+      || bfd_write (sym->name, len, 1, abfd) != len)
+    return false;
+
+  bfd_put_32 (abfd, count, temp);
+  if (bfd_write (temp, sizeof(temp), 1, abfd) != sizeof (temp))
+    return false;
+
+  for (i = 0; i < count; i++)
+    {
+#ifndef OLDFORMAT
+      if (! nlm_powerpc_write_import (abfd, relocs[i].sec, relocs[i].rel))
+	return false;
+#else
+      if (! nlm_powerpc_write_reloc (abfd, relocs[i].sec,
+				     relocs[i].rel, indx))
+	return false;
+#endif
+    }
+
+#ifdef OLDFORMAT
+  ++indx;
+#endif
+
+  return true;
+}
+
+#ifndef OLDFORMAT
+
+/* PowerPC Netware uses a word offset, not a byte offset, for public
+   symbols.  */
+
+/* Set the section for a public symbol.  */
+
+static boolean
+nlm_powerpc_set_public_section (abfd, sym)
+     bfd *abfd;
+     nlmNAME(symbol_type) *sym;
+{
+  if (sym->symbol.value & NLM_HIBIT)
+    {
+      sym->symbol.value &= ~NLM_HIBIT;
+      sym->symbol.flags |= BSF_FUNCTION;
+      sym->symbol.section =
+	bfd_get_section_by_name (abfd, NLM_CODE_NAME);
+    }
+  else
+    {
+      sym->symbol.section =
+	bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
+    }
+
+  sym->symbol.value <<= 2;
+
+  return true;
+}
+
+/* Get the offset to write out for a public symbol.  */
+
+static bfd_vma
+nlm_powerpc_get_public_offset (abfd, sym)
+     bfd *abfd;
+     asymbol *sym;
+{
+  bfd_vma offset;
+  asection *sec;
+
+  offset = bfd_asymbol_value (sym);
+  sec = bfd_get_section (sym);
+  if (sec->flags & SEC_CODE)
+    {
+      offset -= nlm_get_text_low (abfd);
+      offset |= NLM_HIBIT;
+    }
+  else if (sec->flags & (SEC_DATA | SEC_ALLOC))
+    {
+      /* SEC_ALLOC is for the .bss section.  */
+      offset -= nlm_get_data_low (abfd);
+    }
+  else
+    {
+      /* We can't handle an exported symbol that is not in the code or
+	 data segment.  */
+      bfd_set_error (bfd_error_invalid_operation);
+      /* FIXME: No way to return error.  */
+      abort ();
+    }
+
+  return offset;
+}
+
+#endif /* ! defined (OLDFORMAT) */
+
+#include "nlmswap.h"
+
+static const struct nlm_backend_data nlm32_powerpc_backend =
+{
+  "NetWare PowerPC Module \032",
+  sizeof (Nlm32_powerpc_External_Fixed_Header),
+#ifndef OLDFORMAT
+  0,	/* optional_prefix_size */
+#else
+  sizeof (struct nlm32_powerpc_external_prefix_header),
+#endif
+  bfd_arch_powerpc,
+  0,
+  false,
+#ifndef OLDFORMAT
+  0,	/* backend_object_p */
+  0,	/* write_prefix */
+#else
+  nlm_powerpc_backend_object_p,
+  nlm_powerpc_write_prefix,
+#endif
+  nlm_powerpc_read_reloc,
+  nlm_powerpc_mangle_relocs,
+  nlm_powerpc_read_import,
+  nlm_powerpc_write_import,
+#ifndef OLDFORMAT
+  nlm_powerpc_set_public_section,
+  nlm_powerpc_get_public_offset,
+#else
+  0,	/* set_public_section */
+  0,	/* get_public_offset */
+#endif
+  nlm_swap_fixed_header_in,
+  nlm_swap_fixed_header_out,
+  nlm_powerpc_write_external,
+  0,	/* write_export */
+};
+
+#define TARGET_BIG_NAME			"nlm32-powerpc"
+#define TARGET_BIG_SYM			nlmNAME(powerpc_vec)
+#define TARGET_BACKEND_DATA		&nlm32_powerpc_backend
+
+#include "nlm-target.h"