Fix powerpc PC relative reloc & add some 16 bit relocs.

1 files changed, 926 insertions, 0 deletions

diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c
new file mode 100644
index 0000000..d00a7b2
--- /dev/null
+++ b/bfd/elf32-ppc.c
@@ -0,0 +1,926 @@
+/* PowerPC-specific support for 32-bit ELF
+   Copyright 1994, 1995 Free Software Foundation, Inc.
+   Written by Ian Lance Taylor, 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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+/* This file is based on a preliminary PowerPC ELF ABI.  The
+   information may not match the final PowerPC ELF ABI.  It includes
+   suggestions from the in-progress Embedded PowerPC ABI, and that
+   information may also not match.  */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "libelf.h"
+
+static bfd_reloc_status_type ppc_elf_unsupported_reloc
+  PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
+  PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type ppc_elf_got16_reloc
+  PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
+  PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
+static void powerpc_info_to_howto
+  PARAMS ((bfd *abfd, arelent *cache_ptr, Elf32_Internal_Rela *dst));
+
+#define USE_RELA
+
+enum reloc_type
+{
+  R_PPC_NONE = 0,			/*   0 */
+  R_PPC_ADDR32,				/*   1 */
+  R_PPC_ADDR24,				/*   2 */
+  R_PPC_ADDR16,				/*   3 */
+  R_PPC_ADDR16_LO,			/*   4 */
+  R_PPC_ADDR16_HI,			/*   5 */
+  R_PPC_ADDR16_HA,			/*   6 */
+  R_PPC_ADDR14,				/*   7 */
+  R_PPC_ADDR14_BRTAKEN,			/*   8 */
+  R_PPC_ADDR14_BRNTAKEN,		/*   9 */
+  R_PPC_REL24,				/*  10 */
+  R_PPC_REL14,				/*  11 */
+  R_PPC_REL14_BRTAKEN,			/*  12 */
+  R_PPC_REL14_BRNTAKEN,			/*  13 */
+  R_PPC_GOT16,				/*  14 */
+  R_PPC_GOT16_LO,			/*  15 */
+  R_PPC_GOT16_HI,			/*  16 */
+  R_PPC_GOT16_HA,			/*  17 */
+  R_PPC_PLT24,				/*  18 */
+  R_PPC_COPY,				/*  19 */
+  R_PPC_GLOB_DAT,			/*  20 -- not in final System V spec */
+  R_PPC_JMP_SLOT,			/*  21 */
+  R_PPC_RELATIVE,			/*  22 */
+  R_PPC_LOCAL24PC,			/*  23 */
+  R_PPC_UADDR32,			/*  24 */
+  R_PPC_UADDR16,			/*  25 */
+  R_PPC_REL32,				/*  26 */
+  R_PPC_PLT32,				/*  27 */
+  R_PPC_PLTREL32,			/*  28 */
+  R_PPC_PLT16_LO,			/*  29 */
+  R_PPC_PLT16_HI,			/*  30 */
+  R_PPC_PLT16_HA,			/*  31 */
+  R_PPC_SDAREL,				/*  32 */
+
+  /* Relocations added by Sun. */
+  R_PPC_SECTOFF,			/*  33 */
+  R_PPC_SECTOFF_LO,			/*  34 */
+  R_PPC_SECTOFF_HI,			/*  35 */
+  R_PPC_SECTOFF_HA,			/*  36 */
+
+  /* The remaining relocs are from the Embedded ELF ABI, and are not
+     in the SVR4 ELF ABI.  */
+  R_PPC_EMB_NADDR32 = 101,		/* 101 */
+  R_PPC_EMB_NADDR16,			/* 102 */
+  R_PPC_EMB_NADDR16_LO,			/* 103 */
+  R_PPC_EMB_NADDR16_HI,			/* 104 */
+  R_PPC_EMB_NADDR16_HA,			/* 105 */
+  R_PPC_EMB_SDAI16,			/* 106 */
+  R_PPC_EMB_SDA2I16,			/* 107 */
+  R_PPC_EMB_SDA2REL,			/* 108 */
+  R_PPC_EMB_SDA21,			/* 109 */
+  R_PPC_EMB_MRKREF,			/* 110 */
+  R_PPC_EMB_RELSEC16,			/* 111 */
+  R_PPC_EMB_RELST_LO,			/* 112 */
+  R_PPC_EMB_RELST_HI,			/* 113 */
+  R_PPC_EMB_RELST_HA,			/* 114 */
+  R_PPC_EMB_BIT_FLD,			/* 115 */
+  R_PPC_EMB_RELSDA,			/* 116 */
+  R_PPC_max
+};
+
+static reloc_howto_type elf_powerpc_howto_table[] =
+{
+  /* This reloc does nothing.  */
+  HOWTO (R_PPC_NONE,	        /* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 32,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_PPC_NONE",          /* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0,            		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* A standard 32 bit relocation.  */
+  HOWTO (R_PPC_ADDR32,          /* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 32,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_PPC_ADDR32",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffffffff,   		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* An absolute 26 bit branch; the lower two bits must be zero.
+     FIXME: we don't check that, we just clear them.  */
+  HOWTO (R_PPC_ADDR24,          /* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 26,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_PPC_ADDR24",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0x3fffffc,    		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* A standard 16 bit relocation.  */
+  HOWTO (R_PPC_ADDR16,          /* type */
+	 0,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_PPC_ADDR16",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,    		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* A 16 bit relocation without overflow.  */
+  HOWTO (R_PPC_ADDR16_LO,       /* type */
+	 0,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_dont,/* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_PPC_ADDR16_LO",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,       		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* The high order 16 bits of an address.  */
+  HOWTO (R_PPC_ADDR16_HI,       /* type */
+	 16,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_dont, /* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_PPC_ADDR16_HI",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,       		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* The high order 16 bits of an address, plus 1 if the contents of
+     the low 16 bits, treated as a signed number, is negative.  */
+  HOWTO (R_PPC_ADDR16_HA,       /* type */
+	 16,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_dont, /* complain_on_overflow */
+	 ppc_elf_addr16_ha_reloc, /* special_function */
+	 "R_PPC_ADDR16_HA",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,    		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* An absolute 16 bit branch; the lower two bits must be zero.
+     FIXME: we don't check that, we just clear them.  */
+  HOWTO (R_PPC_ADDR14,          /* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_PPC_ADDR14",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xfffc,    		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* An absolute 16 bit branch, for which bit 10 should be set to
+     indicate that the branch is expected to be taken.  The lower two
+     bits must be zero.  */
+  HOWTO (R_PPC_ADDR14_BRTAKEN,  /* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_ADDR14_BRTAKEN",/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xfffc,      		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* An absolute 16 bit branch, for which bit 10 should be set to
+     indicate that the branch is not expected to be taken.  The lower
+     two bits must be zero.  */
+  HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_ADDR14_BRNTAKEN",/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xfffc,    		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* A relative 26 bit branch; the lower two bits must be zero.  */
+  HOWTO (R_PPC_REL24,           /* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 26,	                /* bitsize */
+	 true,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_signed, /* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_PPC_REL24",		/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0x3fffffc,    		/* dst_mask */
+	 true),                 /* pcrel_offset */
+
+  /* A relative 16 bit branch; the lower two bits must be zero.  */
+  HOWTO (R_PPC_REL14,           /* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 true,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_signed, /* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_PPC_REL14",		/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xfffc,    		/* dst_mask */
+	 true),                 /* pcrel_offset */
+
+  /* A relative 16 bit branch.  Bit 10 should be set to indicate that
+     the branch is expected to be taken.  The lower two bits must be
+     zero.  */
+  HOWTO (R_PPC_REL14_BRTAKEN,   /* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_signed, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_REL14_BRTAKEN",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xfffc,    		/* dst_mask */
+	 true),                 /* pcrel_offset */
+
+  /* A relative 16 bit branch.  Bit 10 should be set to indicate that
+     the branch is not expected to be taken.  The lower two bits must
+     be zero.  */
+  HOWTO (R_PPC_REL14_BRNTAKEN,  /* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_signed, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_REL14_BRNTAKEN",/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xfffc,    		/* dst_mask */
+	 true),                 /* pcrel_offset */
+
+  /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
+     symbol.  */
+  HOWTO (R_PPC_GOT16,           /* type */
+	 0,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_got16_reloc,	/* special_function */
+	 "R_PPC_GOT16",		/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,    		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
+     the symbol.  */
+  HOWTO (R_PPC_GOT16_LO,        /* type */
+	 0,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_got16_reloc,	/* special_function */
+	 "R_PPC_GOT16_LO",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,    		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
+     the symbol.  */
+  HOWTO (R_PPC_GOT16_HI,        /* type */
+	 16,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_got16_reloc,	/* special_function */
+	 "R_PPC_GOT16_HI",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,    		/* dst_mask */
+	 false),                 /* pcrel_offset */
+
+  /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
+     the symbol.  FIXME: Not supported.  */
+  HOWTO (R_PPC_GOT16_HA,        /* type */
+	 0,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_GOT16_HA",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,    		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* Like R_PPC_REL24, but referring to the procedure linkage table
+     entry for the symbol.  FIXME: Not supported.  */
+  HOWTO (R_PPC_PLT24,           /* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 26,	                /* bitsize */
+	 true,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_signed, /* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_PPC_PLT24",		/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0x3fffffc,    		/* dst_mask */
+	 true),                 /* pcrel_offset */
+
+  /* This is used only by the dynamic linker.  The symbol should exist
+     both in the object being run and in some shared library.  The
+     dynamic linker copies the data addressed by the symbol from the
+     shared library into the object.  I have no idea what the purpose
+     of this is.  */
+  HOWTO (R_PPC_COPY,            /* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 32,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_PPC_COPY",		/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0,            		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* Like R_PPC_ADDR32, but used when setting global offset table
+     entries.  */
+  HOWTO (R_PPC_GLOB_DAT,        /* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 32,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_PPC_GLOB_DAT",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffffffff,  		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* Marks a procedure linkage table entry for a symbol.  */
+  HOWTO (R_PPC_JMP_SLOT,        /* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 32,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_PPC_JMP_SLOT",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0,            		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* Used only by the dynamic linker.  When the object is run, this
+     longword is set to the load address of the object, plus the
+     addend.  */
+  HOWTO (R_PPC_RELATIVE,        /* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 32,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_PPC_RELATIVE",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffffffff,   		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* Like R_PPC_REL24, but uses the value of the symbol within the
+     object rather than the final value.  Normally used for
+     _GLOBAL_OFFSET_TABLE_.  FIXME: Not supported.  */
+  HOWTO (R_PPC_LOCAL24PC,       /* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 26,	                /* bitsize */
+	 true,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_signed, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_LOCAL24PC",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0x3fffffc,   		/* dst_mask */
+	 true),                 /* pcrel_offset */
+
+  /* Like R_PPC_ADDR32, but may be unaligned.  */
+  HOWTO (R_PPC_UADDR32,         /* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 32,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_PPC_UADDR32",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffffffff,   		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* Like R_PPC_ADDR16, but may be unaligned.  */
+  HOWTO (R_PPC_UADDR16,         /* type */
+	 0,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_PPC_UADDR16",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,       		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* 32-bit PC relative */
+  HOWTO (R_PPC_REL32,		/* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 32,	                /* bitsize */
+	 true,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */
+	 "R_PPC_REL32",		/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffffffff,   		/* dst_mask */
+	 true),			/* pcrel_offset */
+
+  /* 32-bit relocation to the symbol's procedure linkage table.
+     FIXEME: not supported. */
+  HOWTO (R_PPC_PLT32,		/* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 32,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_PLT32",		/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0,      		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* 32-bit PC relative relocation to the symbol's procedure linkage table.
+     FIXEME: not supported. */
+  HOWTO (R_PPC_PLTREL32,	/* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 32,	                /* bitsize */
+	 true,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_PLTREL32",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0,      		/* dst_mask */
+	 true),			/* pcrel_offset */
+
+  /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
+     the symbol.  */
+  HOWTO (R_PPC_PLT16_LO,        /* type */
+	 0,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_PLT16_LO",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,    		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
+     the symbol.  */
+  HOWTO (R_PPC_PLT16_HI,        /* type */
+	 16,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_PLT16_HI",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,    		/* dst_mask */
+	 false),                 /* pcrel_offset */
+
+  /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
+     the symbol.  FIXME: Not supported.  */
+  HOWTO (R_PPC_PLT16_HA,        /* type */
+	 0,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_PLT16_HA",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,    		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* A sign-extended 16 bit value relative to _SDA_BASE, for use with
+     small data items.  */
+  HOWTO (R_PPC_SDAREL,		/* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_SDAREL",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,      		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* These next 4 relocations were added by Sun. */
+  /* 32-bit section relative relocation. FIXME: not supported. */
+  HOWTO (R_PPC_SECTOFF,		/* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 32,	                /* bitsize */
+	 true,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_SECTOFF",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0,      		/* dst_mask */
+	 true),			/* pcrel_offset */
+
+  /* 16-bit lower half section relative relocation. FIXME: not supported. */
+  HOWTO (R_PPC_SECTOFF_LO,        /* type */
+	 0,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_SECTOFF_LO",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,    		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* 16-bit upper half section relative relocation. FIXME: not supported. */
+  HOWTO (R_PPC_SECTOFF_HI,	/* type */
+	 16,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_SECTOFF_HI",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,    		/* dst_mask */
+	 false),                 /* pcrel_offset */
+
+  /* 16-bit upper half adjusted section relative relocation. FIXME: not supported. */
+  HOWTO (R_PPC_SECTOFF_HA,	/* type */
+	 0,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_SECTOFF_HA",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,    		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* The remaining relocs are from the Embedded ELF ABI, and are not
+     in the SVR4 ELF ABI.  */
+
+  /* 32 bit value resulting from the addend minus the symbol */
+  HOWTO (R_PPC_EMB_NADDR32,	/* type */
+	 0,	                /* rightshift */
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 32,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_EMB_NADDR32",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffffffff,   		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* 16 bit value resulting from the addend minus the symbol */
+  HOWTO (R_PPC_EMB_NADDR16,	/* type */
+	 0,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_EMB_NADDR16",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,    		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* 16 bit value resulting from the addend minus the symbol */
+  HOWTO (R_PPC_EMB_NADDR16_LO,	/* type */
+	 0,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_dont,/* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_EMB_ADDR16_LO",	/* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,       		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* The high order 16 bits of the addend minus the symbol */
+  HOWTO (R_PPC_EMB_NADDR16_HI,	/* type */
+	 16,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_dont, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_EMB_NADDR16_HI", /* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,       		/* dst_mask */
+	 false),                /* pcrel_offset */
+
+  /* The high order 16 bits of the result of the addend minus the address,
+     plus 1 if the contents of the low 16 bits, treated as a signed number,
+     is negative.  */
+  HOWTO (R_PPC_EMB_NADDR16_HA,	/* type */
+	 16,	                /* rightshift */
+	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
+	 16,	                /* bitsize */
+	 false,	                /* pc_relative */
+	 0,	                /* bitpos */
+	 complain_overflow_dont, /* complain_on_overflow */
+	 ppc_elf_unsupported_reloc, /* special_function */
+	 "R_PPC_EMB_NADDR16_HA", /* name */
+	 false,	                /* partial_inplace */
+	 0,		        /* src_mask */
+	 0xffff,    		/* dst_mask */
+	 false),                /* pcrel_offset */
+};
+
+/* Don't pretend we can deal with unsupported relocs.  */
+
+/*ARGSUSED*/
+static bfd_reloc_status_type
+ppc_elf_unsupported_reloc (abfd, reloc_entry, symbol, data, input_section,
+			   output_bfd, error_message)
+     bfd *abfd;
+     arelent *reloc_entry;
+     asymbol *symbol;
+     PTR data;
+     asection *input_section;
+     bfd *output_bfd;
+     char **error_message;
+{
+  abort ();
+}
+
+/* Handle the ADDR16_HA reloc by adjusting the reloc addend.  */
+
+static bfd_reloc_status_type
+ppc_elf_addr16_ha_reloc (abfd, reloc_entry, symbol, data, input_section,
+		         output_bfd, error_message)
+     bfd *abfd;
+     arelent *reloc_entry;
+     asymbol *symbol;
+     PTR data;
+     asection *input_section;
+     bfd *output_bfd;
+     char **error_message;
+{
+  bfd_vma relocation;
+
+  if (output_bfd != (bfd *) NULL)
+    return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
+				  input_section, output_bfd, error_message);
+
+  if (bfd_is_com_section (symbol->section))
+    relocation = 0;
+  else
+    relocation = symbol->value;
+
+  relocation += (symbol->section->output_section->vma
+		 + symbol->section->output_offset
+		 + reloc_entry->addend);
+
+  if ((relocation & 0x8000) != 0)
+    reloc_entry->addend += 0x10000;
+
+  return bfd_reloc_continue;
+}
+
+/* Handle the GOT16 reloc.  We want to use the offset within the .got
+   section, not the actual VMA.  This is appropriate when generating
+   an embedded ELF object, for which the .got section acts like the
+   AIX .toc section.  When and if we support PIC code, we will have to
+   change this, perhaps by switching off on the e_type field.  */
+
+static bfd_reloc_status_type
+ppc_elf_got16_reloc (abfd, reloc_entry, symbol, data, input_section,
+		     output_bfd, error_message)
+     bfd *abfd;
+     arelent *reloc_entry;
+     asymbol *symbol;
+     PTR data;
+     asection *input_section;
+     bfd *output_bfd;
+     char **error_message;
+{
+  asection *sec;
+
+  if (output_bfd != (bfd *) NULL)
+    return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
+				  input_section, output_bfd, error_message);
+
+  sec = bfd_get_section (*reloc_entry->sym_ptr_ptr);
+  BFD_ASSERT (bfd_is_und_section (sec)
+	      || strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
+	      || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0);
+  reloc_entry->addend -= sec->output_section->vma;
+  return bfd_reloc_continue;
+}
+
+/* Map BFD reloc types to PowerPC ELF reloc types.  */
+
+struct powerpc_reloc_map
+{
+  unsigned char bfd_reloc_val;
+  unsigned char elf_reloc_val;
+};
+
+static const struct powerpc_reloc_map powerpc_reloc_map[] =
+{
+  { BFD_RELOC_NONE, R_PPC_NONE, },
+  { BFD_RELOC_32, R_PPC_ADDR32 },
+  { BFD_RELOC_32_PCREL, R_PPC_REL32 },
+  { BFD_RELOC_CTOR, R_PPC_ADDR32 },
+  { BFD_RELOC_PPC_B26, R_PPC_REL24 },
+  { BFD_RELOC_PPC_BA26, R_PPC_ADDR24 },
+  { BFD_RELOC_PPC_TOC16, R_PPC_GOT16 },
+  { BFD_RELOC_LO16, R_PPC_ADDR16_LO },
+  { BFD_RELOC_HI16, R_PPC_ADDR16_HI },
+  { BFD_RELOC_HI16_S, R_PPC_ADDR16_HA }
+};
+
+static reloc_howto_type *
+bfd_elf32_bfd_reloc_type_lookup (abfd, code)
+     bfd *abfd;
+     bfd_reloc_code_real_type code;
+{
+  int i;
+
+  for (i = 0;
+       i < sizeof (powerpc_reloc_map) / sizeof (struct powerpc_reloc_map);
+       i++)
+    {
+      if (powerpc_reloc_map[i].bfd_reloc_val == code)
+	return &elf_powerpc_howto_table[powerpc_reloc_map[i].elf_reloc_val];
+    }
+
+  return NULL;
+}
+
+/* Set the howto pointer for a PowerPC ELF reloc.  */
+
+static void
+powerpc_info_to_howto (abfd, cache_ptr, dst)
+     bfd *abfd;
+     arelent *cache_ptr;
+     Elf32_Internal_Rela *dst;
+{
+  BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
+  cache_ptr->howto = &elf_powerpc_howto_table[ELF32_R_TYPE (dst->r_info)];
+}
+
+#define TARGET_BIG_SYM		bfd_elf32_powerpc_vec
+#define TARGET_BIG_NAME		"elf32-powerpc"
+#define ELF_ARCH		bfd_arch_powerpc
+#define ELF_MACHINE_CODE	EM_PPC
+#define ELF_MAXPAGESIZE		0x10000
+#define elf_info_to_howto	powerpc_info_to_howto
+
+#ifdef  EM_CYGNUS_POWERPC
+#define ELF_MACHINE_ALT1	EM_CYGNUS_POWERPC
+#endif
+
+#ifdef EM_PPC_OLD
+#define ELF_MACHINE_ALT2	EM_PPC_OLD
+#endif
+
+#include "elf32-target.h"