-/* Intel 860 specific support for 32-bit ELF
- Copyright 1993 Free Software Foundation, Inc.
+/* Intel i860 specific support for 32-bit ELF.
+ Copyright 1993, 2000 Free Software Foundation, Inc.
+
+ Full i860 support contributed by Jason Eckhardt <jle@cygnus.com>.
This file is part of BFD, the Binary File Descriptor library.
#include "sysdep.h"
#include "libbfd.h"
#include "elf-bfd.h"
+#include "elf/i860.h"
+
+
+/* Prototypes. */
+static reloc_howto_type *lookup_howto
+ PARAMS ((unsigned int));
+
+static reloc_howto_type *elf32_i860_reloc_type_lookup
+ PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
+
+static void elf32_i860_info_to_howto_rela
+ PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
+
+static bfd_reloc_status_type elf32_i860_relocate_splitn
+ PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
+
+static bfd_reloc_status_type elf32_i860_relocate_pc16
+ PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
+
+static bfd_reloc_status_type elf32_i860_relocate_highadj
+ PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
+
+static boolean elf32_i860_relocate_section
+ PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
+ Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
+
+static bfd_reloc_status_type i860_final_link_relocate
+ PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
+ Elf_Internal_Rela *, bfd_vma));
+
+
+
+/* This howto table is preliminary. */
+static reloc_howto_type elf32_i860_howto_table [] =
+{
+ /* This relocation does nothing. */
+ HOWTO (R_860_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_860_NONE", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A 32-bit absolute relocation. */
+ HOWTO (R_860_32, /* 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_860_32", /* name */
+ false, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_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_860_COPY", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_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_860_GLOB_DAT", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_JUMP_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_860_JUMP_SLOT", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_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_860_RELATIVE", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A 26-bit PC-relative relocation. */
+ HOWTO (R_860_PC26, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 26, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_860_PC26", /* name */
+ false, /* partial_inplace */
+ 0x3ffffff, /* src_mask */
+ 0x3ffffff, /* dst_mask */
+ true), /* pcrel_offset */
+
+ HOWTO (R_860_PLT26, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 26, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_860_PLT26", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* A 16-bit PC-relative relocation. */
+ HOWTO (R_860_PC16, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_860_PC16", /* name */
+ false, /* partial_inplace */
+ 0x1f07ff, /* src_mask */
+ 0x1f07ff, /* dst_mask */
+ true), /* pcrel_offset */
+
+ HOWTO (R_860_LOW0, /* type */
+ 0, /* rightshift */
+ 2, /* 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_860_LOW0", /* name */
+ false, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_SPLIT0, /* type */
+ 0, /* rightshift */
+ 2, /* 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_860_SPLIT0", /* name */
+ false, /* partial_inplace */
+ 0x1f07ff, /* src_mask */
+ 0x1f07ff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_LOW1, /* type */
+ 0, /* rightshift */
+ 2, /* 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_860_LOW1", /* name */
+ false, /* partial_inplace */
+ 0xfffe, /* src_mask */
+ 0xfffe, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_SPLIT1, /* type */
+ 0, /* rightshift */
+ 2, /* 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_860_SPLIT1", /* name */
+ false, /* partial_inplace */
+ 0x1f07fe, /* src_mask */
+ 0x1f07fe, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_LOW2, /* type */
+ 0, /* rightshift */
+ 2, /* 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_860_LOW2", /* name */
+ false, /* partial_inplace */
+ 0xfffc, /* src_mask */
+ 0xfffc, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_SPLIT2, /* type */
+ 0, /* rightshift */
+ 2, /* 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_860_SPLIT2", /* name */
+ false, /* partial_inplace */
+ 0x1f07fc, /* src_mask */
+ 0x1f07fc, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_LOW3, /* type */
+ 0, /* rightshift */
+ 2, /* 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_860_LOW3", /* name */
+ false, /* partial_inplace */
+ 0xfff8, /* src_mask */
+ 0xfff8, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_LOGOT0, /* type */
+ 0, /* rightshift */
+ 2, /* 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_860_LOGOT0", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ true), /* pcrel_offset */
+
+ HOWTO (R_860_SPGOT0, /* type */
+ 0, /* rightshift */
+ 2, /* 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_860_SPGOT0", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ true), /* pcrel_offset */
+
+ HOWTO (R_860_LOGOT1, /* type */
+ 0, /* rightshift */
+ 2, /* 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_860_LOGOT1", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ true), /* pcrel_offset */
+
+ HOWTO (R_860_SPGOT1, /* type */
+ 0, /* rightshift */
+ 2, /* 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_860_SPGOT1", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ true), /* pcrel_offset */
+
+ HOWTO (R_860_LOGOTOFF0, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_860_LOGOTOFF0", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_SPGOTOFF0, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_860_SPGOTOFF0", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_LOGOTOFF1, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_860_LOGOTOFF1", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_SPGOTOFF1, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_860_SPGOTOFF1", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_LOGOTOFF2, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_860_LOGOTOFF2", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_LOGOTOFF3, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_860_LOGOTOFF3", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_LOPC, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_860_LOPC", /* name */
+ false, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ true), /* pcrel_offset */
+
+ HOWTO (R_860_HIGHADJ, /* type */
+ 0, /* rightshift */
+ 2, /* 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_860_HIGHADJ", /* name */
+ false, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_HAGOT, /* type */
+ 0, /* rightshift */
+ 2, /* 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_860_HAGOT", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ true), /* pcrel_offset */
+
+ HOWTO (R_860_HAGOTOFF, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_860_HAGOTOFF", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_HAPC, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_860_HAPC", /* name */
+ false, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ true), /* pcrel_offset */
+
+ HOWTO (R_860_HIGH, /* type */
+ 16, /* rightshift */
+ 2, /* 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_860_HIGH", /* name */
+ false, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_860_HIGOT, /* type */
+ 0, /* rightshift */
+ 2, /* 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_860_HIGOT", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ true), /* pcrel_offset */
+
+ HOWTO (R_860_HIGOTOFF, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_860_HIGOTOFF", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+};
+
+\f
+static unsigned char elf_code_to_howto_index[R_860_max + 1];
+
+static reloc_howto_type *
+lookup_howto (rtype)
+ unsigned int rtype;
+{
+ static int initialized = 0;
+ int i;
+ int howto_tbl_size = (int) (sizeof (elf32_i860_howto_table)
+ / sizeof (elf32_i860_howto_table[0]));
+
+ if (! initialized)
+ {
+ initialized = 1;
+ memset (elf_code_to_howto_index, 0xff,
+ sizeof (elf_code_to_howto_index));
+ for (i = 0; i < howto_tbl_size; i++)
+ elf_code_to_howto_index[elf32_i860_howto_table[i].type] = i;
+ }
+
+ BFD_ASSERT (rtype <= R_860_max);
+ i = elf_code_to_howto_index[rtype];
+ if (i >= howto_tbl_size)
+ return 0;
+ return elf32_i860_howto_table + i;
+}
+
+
+/* Given a BFD reloc, return the matching HOWTO structure. */
+static reloc_howto_type *
+elf32_i860_reloc_type_lookup (abfd, code)
+ bfd * abfd ATTRIBUTE_UNUSED;
+ bfd_reloc_code_real_type code;
+{
+ unsigned int rtype;
+
+ switch (code)
+ {
+ case BFD_RELOC_NONE:
+ rtype = R_860_NONE;
+ break;
+ case BFD_RELOC_32:
+ rtype = R_860_32;
+ break;
+ case BFD_RELOC_860_COPY:
+ rtype = R_860_COPY;
+ break;
+ case BFD_RELOC_860_GLOB_DAT:
+ rtype = R_860_GLOB_DAT;
+ break;
+ case BFD_RELOC_860_JUMP_SLOT:
+ rtype = R_860_JUMP_SLOT;
+ break;
+ case BFD_RELOC_860_RELATIVE:
+ rtype = R_860_RELATIVE;
+ break;
+ case BFD_RELOC_860_PC26:
+ rtype = R_860_PC26;
+ break;
+ case BFD_RELOC_860_PLT26:
+ rtype = R_860_PLT26;
+ break;
+ case BFD_RELOC_860_PC16:
+ rtype = R_860_PC16;
+ break;
+ case BFD_RELOC_860_LOW0:
+ rtype = R_860_LOW0;
+ break;
+ case BFD_RELOC_860_SPLIT0:
+ rtype = R_860_SPLIT0;
+ break;
+ case BFD_RELOC_860_LOW1:
+ rtype = R_860_LOW1;
+ break;
+ case BFD_RELOC_860_SPLIT1:
+ rtype = R_860_SPLIT1;
+ break;
+ case BFD_RELOC_860_LOW2:
+ rtype = R_860_LOW2;
+ break;
+ case BFD_RELOC_860_SPLIT2:
+ rtype = R_860_SPLIT2;
+ break;
+ case BFD_RELOC_860_LOW3:
+ rtype = R_860_LOW3;
+ break;
+ case BFD_RELOC_860_LOGOT0:
+ rtype = R_860_LOGOT0;
+ break;
+ case BFD_RELOC_860_SPGOT0:
+ rtype = R_860_SPGOT0;
+ break;
+ case BFD_RELOC_860_LOGOT1:
+ rtype = R_860_LOGOT1;
+ break;
+ case BFD_RELOC_860_SPGOT1:
+ rtype = R_860_SPGOT1;
+ break;
+ case BFD_RELOC_860_LOGOTOFF0:
+ rtype = R_860_LOGOTOFF0;
+ break;
+ case BFD_RELOC_860_SPGOTOFF0:
+ rtype = R_860_SPGOTOFF0;
+ break;
+ case BFD_RELOC_860_LOGOTOFF1:
+ rtype = R_860_LOGOTOFF1;
+ break;
+ case BFD_RELOC_860_SPGOTOFF1:
+ rtype = R_860_SPGOTOFF1;
+ break;
+ case BFD_RELOC_860_LOGOTOFF2:
+ rtype = R_860_LOGOTOFF2;
+ break;
+ case BFD_RELOC_860_LOGOTOFF3:
+ rtype = R_860_LOGOTOFF3;
+ break;
+ case BFD_RELOC_860_LOPC:
+ rtype = R_860_LOPC;
+ break;
+ case BFD_RELOC_860_HIGHADJ:
+ rtype = R_860_HIGHADJ;
+ break;
+ case BFD_RELOC_860_HAGOT:
+ rtype = R_860_HAGOT;
+ break;
+ case BFD_RELOC_860_HAGOTOFF:
+ rtype = R_860_HAGOTOFF;
+ break;
+ case BFD_RELOC_860_HAPC:
+ rtype = R_860_HAPC;
+ break;
+ case BFD_RELOC_860_HIGH:
+ rtype = R_860_HIGH;
+ break;
+ case BFD_RELOC_860_HIGOT:
+ rtype = R_860_HIGOT;
+ break;
+ case BFD_RELOC_860_HIGOTOFF:
+ rtype = R_860_HIGOTOFF;
+ break;
+ default:
+ rtype = 0;
+ break;
+ }
+ return lookup_howto (rtype);
+}
+
+
+/* Given a ELF reloc, return the matching HOWTO structure. */
+static void
+elf32_i860_info_to_howto_rela (abfd, bfd_reloc, elf_reloc)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ arelent *bfd_reloc;
+ Elf64_Internal_Rela *elf_reloc;
+{
+ bfd_reloc->howto = lookup_howto (ELF32_R_TYPE (elf_reloc->r_info));
+}
+
+
+\f
+/* Specialized relocation handler for R_860_SPLITn. These relocations
+ involves a 16-bit field that is split into two contiguous parts. */
+static bfd_reloc_status_type
+elf32_i860_relocate_splitn (input_bfd, rello, contents, value)
+ bfd *input_bfd;
+ Elf_Internal_Rela *rello;
+ bfd_byte *contents;
+ bfd_vma value;
+{
+ bfd_vma insn;
+ reloc_howto_type *howto;
+ howto = lookup_howto (ELF32_R_TYPE (rello->r_info));
+ insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
+
+ /* Relocate. */
+ value += rello->r_addend;
+
+ /* Separate the fields and insert. */
+ value = (((value & 0xf8) << 5) | (value & 0x7ff)) & howto->dst_mask;
+ insn = (insn & ~howto->dst_mask) | value;
+
+ bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
+ return bfd_reloc_ok;
+}
+
+
+/* Specialized relocation handler for R_860_PC16. This relocation
+ involves a 16-bit, PC-relative field that is split into two contiguous
+ parts. */
+static bfd_reloc_status_type
+elf32_i860_relocate_pc16 (input_bfd, input_section, rello, contents, value)
+ bfd *input_bfd;
+ asection *input_section;
+ Elf_Internal_Rela *rello;
+ bfd_byte *contents;
+ bfd_vma value;
+{
+ bfd_vma insn;
+ reloc_howto_type *howto;
+ howto = lookup_howto (ELF32_R_TYPE (rello->r_info));
+ insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
+
+ /* Adjust for PC-relative relocation. */
+ value -= (input_section->output_section->vma
+ + input_section->output_offset);
+ value -= rello->r_offset;
+
+ /* Relocate. */
+ value += rello->r_addend;
+
+ /* Separate the fields and insert. */
+ value = (((value & 0xf8) << 5) | (value & 0x7ff)) & howto->dst_mask;
+ insn = (insn & ~howto->dst_mask) | value;
+
+ bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
+ return bfd_reloc_ok;
+
+}
+
+
+/* Specialized relocation handler for R_860_HIGHADJ. */
+static bfd_reloc_status_type
+elf32_i860_relocate_highadj (input_bfd, rel, contents, value)
+ bfd *input_bfd;
+ Elf_Internal_Rela *rel;
+ bfd_byte *contents;
+ bfd_vma value;
+{
+ bfd_vma insn;
+
+ insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
+
+ value += ((rel->r_addend & 0x8000) << 1);
+ value += rel->r_addend;
+ value = ((value >> 16) & 0xffff);
+
+ insn = (insn & 0xffff0000) | value;
+
+ bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
+ return bfd_reloc_ok;
+}
+
+
+/* Perform a single relocation. By default we use the standard BFD
+ routines. However, we handle some specially. */
+static bfd_reloc_status_type
+i860_final_link_relocate (howto, input_bfd, input_section, contents, rel, relocation)
+ reloc_howto_type * howto;
+ bfd * input_bfd;
+ asection * input_section;
+ bfd_byte * contents;
+ Elf_Internal_Rela * rel;
+ bfd_vma relocation;
+{
+ return _bfd_final_link_relocate (howto, input_bfd, input_section,
+ contents, rel->r_offset, relocation,
+ rel->r_addend);
+}
+
+
+/* Relocate an i860 ELF section.
+
+ This is boiler-plate code copied from fr30.
+ There is some attempt to make this function usable for many architectures,
+ both USE_REL and USE_RELA ['twould be nice if such a critter existed],
+ if only to serve as a learning tool.
+
+ The RELOCATE_SECTION function is called by the new ELF backend linker
+ to handle the relocations for a section.
+
+ The relocs are always passed as Rela structures; if the section
+ actually uses Rel structures, the r_addend field will always be
+ zero.
+
+ This function is responsible for adjusting the section contents as
+ necessary, and (if using Rela relocs and generating a relocateable
+ output file) adjusting the reloc addend as necessary.
+
+ This function does not have to worry about setting the reloc
+ address or the reloc symbol index.
+
+ LOCAL_SYMS is a pointer to the swapped in local symbols.
+
+ LOCAL_SECTIONS is an array giving the section in the input file
+ corresponding to the st_shndx field of each local symbol.
+
+ The global hash table entry for the global symbols can be found
+ via elf_sym_hashes (input_bfd).
+
+ When generating relocateable output, this function must handle
+ STB_LOCAL/STT_SECTION symbols specially. The output symbol is
+ going to be the section symbol corresponding to the output
+ section, which means that the addend must be adjusted
+ accordingly. */
+static boolean
+elf32_i860_relocate_section (output_bfd, info, input_bfd, input_section,
+ contents, relocs, local_syms, local_sections)
+ bfd * output_bfd ATTRIBUTE_UNUSED;
+ struct bfd_link_info * info;
+ bfd * input_bfd;
+ asection * input_section;
+ bfd_byte * contents;
+ Elf_Internal_Rela * relocs;
+ Elf_Internal_Sym * local_syms;
+ asection ** local_sections;
+{
+ Elf_Internal_Shdr * symtab_hdr;
+ struct elf_link_hash_entry ** sym_hashes;
+ Elf_Internal_Rela * rel;
+ Elf_Internal_Rela * relend;
+
+ symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (input_bfd);
+ relend = relocs + input_section->reloc_count;
+
+ for (rel = relocs; rel < relend; rel ++)
+ {
+ reloc_howto_type * howto;
+ unsigned long r_symndx;
+ Elf_Internal_Sym * sym;
+ asection * sec;
+ struct elf_link_hash_entry * h;
+ bfd_vma relocation;
+ bfd_reloc_status_type r;
+ const char * name = NULL;
+ int r_type;
+
+ r_type = ELF32_R_TYPE (rel->r_info);
+
+#if 0
+ if ( r_type == R_860_GNU_VTINHERIT
+ || r_type == R_860_GNU_VTENTRY)
+ continue;
+#endif
+
+ r_symndx = ELF32_R_SYM (rel->r_info);
+
+ if (info->relocateable)
+ {
+ /* This is a relocateable link. We don't have to change
+ anything, unless the reloc is against a section symbol,
+ in which case we have to adjust according to where the
+ section symbol winds up in the output section. */
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+
+ if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
+ {
+ sec = local_sections [r_symndx];
+ rel->r_addend += sec->output_offset + sym->st_value;
+ }
+ }
+
+ continue;
+ }
+
+ /* This is a final link. */
+ howto = lookup_howto (ELF32_R_TYPE (rel->r_info));
+ h = NULL;
+ sym = NULL;
+ sec = NULL;
+
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ sec = local_sections [r_symndx];
+ relocation = (sec->output_section->vma
+ + sec->output_offset
+ + sym->st_value);
+
+ name = bfd_elf_string_from_elf_section
+ (input_bfd, symtab_hdr->sh_link, sym->st_name);
+ name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
+ }
+ else
+ {
+ h = sym_hashes [r_symndx - symtab_hdr->sh_info];
+
+ while (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
+ name = h->root.root.string;
+
+ if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ {
+ sec = h->root.u.def.section;
+ relocation = (h->root.u.def.value
+ + sec->output_section->vma
+ + sec->output_offset);
+ }
+ else if (h->root.type == bfd_link_hash_undefweak)
+ {
+ relocation = 0;
+ }
+ else
+ {
+ if (! ((*info->callbacks->undefined_symbol)
+ (info, h->root.root.string, input_bfd,
+ input_section, rel->r_offset, true)))
+ return false;
+ relocation = 0;
+ }
+ }
+
+ switch (r_type)
+ {
+ default:
+ r = i860_final_link_relocate (howto, input_bfd, input_section,
+ contents, rel, relocation);
+ break;
+
+ case R_860_HIGHADJ:
+ r = elf32_i860_relocate_highadj (input_bfd, rel, contents,
+ relocation);
+ break;
+
+ case R_860_PC16:
+ r = elf32_i860_relocate_pc16 (input_bfd, input_section, rel,
+ contents, relocation);
+ break;
+
+ case R_860_SPLIT0:
+ case R_860_SPLIT1:
+ case R_860_SPLIT2:
+ r = elf32_i860_relocate_splitn (input_bfd, rel, contents,
+ relocation);
+ break;
+
+ /* We do not yet handle GOT/PLT/Dynamic relocations. */
+ case R_860_COPY:
+ case R_860_GLOB_DAT:
+ case R_860_JUMP_SLOT:
+ case R_860_RELATIVE:
+ case R_860_PLT26:
+ case R_860_LOGOT0:
+ case R_860_SPGOT0:
+ case R_860_LOGOT1:
+ case R_860_SPGOT1:
+ case R_860_LOGOTOFF0:
+ case R_860_SPGOTOFF0:
+ case R_860_LOGOTOFF1:
+ case R_860_SPGOTOFF1:
+ case R_860_LOGOTOFF2:
+ case R_860_LOGOTOFF3:
+ case R_860_LOPC:
+ case R_860_HAGOT:
+ case R_860_HAGOTOFF:
+ case R_860_HAPC:
+ case R_860_HIGOT:
+ case R_860_HIGOTOFF:
+ r = bfd_reloc_notsupported;
+ break;
+ }
+
+ if (r != bfd_reloc_ok)
+ {
+ const char * msg = (const char *) NULL;
+
+ switch (r)
+ {
+ case bfd_reloc_overflow:
+ r = info->callbacks->reloc_overflow
+ (info, name, howto->name, (bfd_vma) 0,
+ input_bfd, input_section, rel->r_offset);
+ break;
+
+ case bfd_reloc_undefined:
+ r = info->callbacks->undefined_symbol
+ (info, name, input_bfd, input_section, rel->r_offset, true);
+ break;
+
+ case bfd_reloc_outofrange:
+ msg = _("internal error: out of range error");
+ break;
+
+ case bfd_reloc_notsupported:
+ msg = _("internal error: unsupported relocation error");
+ break;
+
+ case bfd_reloc_dangerous:
+ msg = _("internal error: dangerous relocation");
+ break;
+
+ default:
+ msg = _("internal error: unknown error");
+ break;
+ }
+
+ if (msg)
+ r = info->callbacks->warning
+ (info, msg, name, input_bfd, input_section, rel->r_offset);
+
+ if (! r)
+ return false;
+ }
+ }
+
+ return true;
+}
+
-#define bfd_elf32_bfd_reloc_type_lookup bfd_default_reloc_type_lookup
-#define elf_info_to_howto _bfd_elf_no_info_to_howto
+\f
+#define TARGET_BIG_SYM bfd_elf32_i860_vec
+#define TARGET_BIG_NAME "elf32-i860"
+#define TARGET_LITTLE_SYM bfd_elf32_i860_little_vec
+#define TARGET_LITTLE_NAME "elf32-i860-little"
+#define ELF_ARCH bfd_arch_i860
+#define ELF_MACHINE_CODE EM_860
+#define ELF_MAXPAGESIZE 4096
-#define TARGET_BIG_SYM bfd_elf32_i860_vec
-#define TARGET_BIG_NAME "elf32-i860"
-#define ELF_ARCH bfd_arch_i860
-#define ELF_MACHINE_CODE EM_860
-#define ELF_MAXPAGESIZE 1 /* FIXME: This number is wrong, It should be the page size in bytes. */
+#define elf_info_to_howto_rel NULL
+#define elf_info_to_howto elf32_i860_info_to_howto_rela
+#define elf_backend_relocate_section elf32_i860_relocate_section
+#define bfd_elf32_bfd_reloc_type_lookup elf32_i860_reloc_type_lookup
#include "elf32-target.h"
projects / deliverable / binutils-gdb.git / blobdiff