/* Intel i860 specific support for 32-bit ELF.
- Copyright 1993, 2000 Free Software Foundation, Inc.
+ Copyright 1993, 1995, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+ Free Software Foundation, Inc.
Full i860 support contributed by Jason Eckhardt <jle@cygnus.com>.
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. */
+Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "elf-bfd.h"
#include "elf/i860.h"
+/* special_function for R_860_PC26 relocation. */
+static bfd_reloc_status_type
+i860_howto_pc26_reloc (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void *data ATTRIBUTE_UNUSED,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
+{
+ bfd_vma insn;
+ bfd_vma relocation;
+ bfd_byte *addr;
+
+ if (output_bfd != NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && (! reloc_entry->howto->partial_inplace
+ || reloc_entry->addend == 0))
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ /* Used elf32-mips.c as an example. */
+ if (bfd_is_und_section (symbol->section)
+ && output_bfd == (bfd *) NULL)
+ return bfd_reloc_undefined;
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += reloc_entry->addend;
+
+ if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
+ return bfd_reloc_outofrange;
+
+ /* Adjust for PC-relative relocation. */
+ relocation -= (input_section->output_section->vma
+ + input_section->output_offset
+ + reloc_entry->address
+ + 4);
+
+ /* Check for target out of range. */
+ if ((bfd_signed_vma)relocation > (0x3ffffff << 2)
+ || (bfd_signed_vma)relocation < (-0x4000000 << 2))
+ return bfd_reloc_outofrange;
+
+ addr = (bfd_byte *) data + reloc_entry->address;
+ insn = bfd_get_32 (abfd, addr);
+
+ relocation >>= reloc_entry->howto->rightshift;
+ insn = (insn & ~reloc_entry->howto->dst_mask)
+ | (relocation & reloc_entry->howto->dst_mask);
+
+ bfd_put_32 (abfd, (bfd_vma) insn, addr);
+
+ return bfd_reloc_ok;
+}
+
+/* special_function for R_860_PC16 relocation. */
+static bfd_reloc_status_type
+i860_howto_pc16_reloc (bfd *abfd,
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void *data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
+{
+ bfd_vma insn;
+ bfd_vma relocation;
+ bfd_byte *addr;
+
+ if (output_bfd != NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && (! reloc_entry->howto->partial_inplace
+ || reloc_entry->addend == 0))
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ /* Used elf32-mips.c as an example. */
+ if (bfd_is_und_section (symbol->section)
+ && output_bfd == (bfd *) NULL)
+ return bfd_reloc_undefined;
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += reloc_entry->addend;
+
+ if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
+ return bfd_reloc_outofrange;
+
+ /* Adjust for PC-relative relocation. */
+ relocation -= (input_section->output_section->vma
+ + input_section->output_offset
+ + reloc_entry->address
+ + 4);
+
+ /* Check for target out of range. */
+ if ((bfd_signed_vma)relocation > (0x7fff << 2)
+ || (bfd_signed_vma)relocation < (-0x8000 << 2))
+ return bfd_reloc_outofrange;
+
+ addr = (bfd_byte *) data + reloc_entry->address;
+ insn = bfd_get_32 (abfd, addr);
-/* Prototypes. */
-static reloc_howto_type *lookup_howto
- PARAMS ((unsigned int));
+ relocation >>= reloc_entry->howto->rightshift;
+ relocation = (((relocation & 0xf800) << 5) | (relocation & 0x7ff))
+ & reloc_entry->howto->dst_mask;
+ insn = (insn & ~reloc_entry->howto->dst_mask) | relocation;
-static reloc_howto_type *elf32_i860_reloc_type_lookup
- PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
+ bfd_put_32 (abfd, (bfd_vma) insn, addr);
-static void elf32_i860_info_to_howto_rela
- PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
+ return bfd_reloc_ok;
+}
+
+/* special_function for R_860_HIGHADJ relocation. */
+static bfd_reloc_status_type
+i860_howto_highadj_reloc (bfd *abfd,
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void *data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
+{
+ bfd_vma insn;
+ bfd_vma relocation;
+ bfd_byte *addr;
+
+ if (output_bfd != NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && (! reloc_entry->howto->partial_inplace
+ || reloc_entry->addend == 0))
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ /* Used elf32-mips.c as an example. */
+ if (bfd_is_und_section (symbol->section)
+ && output_bfd == (bfd *) NULL)
+ return bfd_reloc_undefined;
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += reloc_entry->addend;
+ relocation += 0x8000;
+
+ if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
+ return bfd_reloc_outofrange;
+
+ addr = (bfd_byte *) data + reloc_entry->address;
+ insn = bfd_get_32 (abfd, addr);
+
+ relocation = ((relocation >> 16) & 0xffff);
+
+ insn = (insn & 0xffff0000) | relocation;
-static bfd_reloc_status_type elf32_i860_relocate_splitn
- PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
+ bfd_put_32 (abfd, (bfd_vma) insn, addr);
-#if 0
-static bfd_reloc_status_type elf32_i860_relocate_pc16
- PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
-#endif
+ return bfd_reloc_ok;
+}
+
+/* special_function for R_860_SPLITn relocations. */
+static bfd_reloc_status_type
+i860_howto_splitn_reloc (bfd *abfd,
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void *data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
+{
+ bfd_vma insn;
+ bfd_vma relocation;
+ bfd_byte *addr;
+
+ if (output_bfd != NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && (! reloc_entry->howto->partial_inplace
+ || reloc_entry->addend == 0))
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ /* Used elf32-mips.c as an example. */
+ if (bfd_is_und_section (symbol->section)
+ && output_bfd == (bfd *) NULL)
+ return bfd_reloc_undefined;
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += reloc_entry->addend;
-static bfd_reloc_status_type elf32_i860_relocate_highadj
- PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
+ if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
+ return bfd_reloc_outofrange;
-static boolean elf32_i860_relocate_section
- PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
- Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
+ addr = (bfd_byte *) data + reloc_entry->address;
+ insn = bfd_get_32 (abfd, addr);
-static bfd_reloc_status_type i860_final_link_relocate
- PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
- Elf_Internal_Rela *, bfd_vma));
+ relocation = (((relocation & 0xf800) << 5) | (relocation & 0x7ff))
+ & reloc_entry->howto->dst_mask;
+ insn = (insn & ~reloc_entry->howto->dst_mask) | relocation;
+ bfd_put_32 (abfd, (bfd_vma) insn, addr);
+ return bfd_reloc_ok;
+}
/* This howto table is preliminary. */
static reloc_howto_type elf32_i860_howto_table [] =
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_NONE", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- false), /* pcrel_offset */
+ 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 */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_32", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_COPY, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_COPY", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_GLOB_DAT, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ 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 */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_JUMP_SLOT, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ 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 */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_RELATIVE, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_RELATIVE", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ 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 */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ i860_howto_pc26_reloc, /* special_function */
"R_860_PC26", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x3ffffff, /* src_mask */
0x3ffffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_PLT26, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_PLT26", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- true), /* pcrel_offset */
+ 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 */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ i860_howto_pc16_reloc, /* special_function */
"R_860_PC16", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x1f07ff, /* src_mask */
0x1f07ff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_LOW0, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOW0", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_SPLIT0, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ i860_howto_splitn_reloc, /* special_function */
"R_860_SPLIT0", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x1f07ff, /* src_mask */
0x1f07ff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_LOW1, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOW1", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xfffe, /* src_mask */
0xfffe, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_SPLIT1, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ i860_howto_splitn_reloc, /* special_function */
"R_860_SPLIT1", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x1f07fe, /* src_mask */
0x1f07fe, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_LOW2, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOW2", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xfffc, /* src_mask */
0xfffc, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_SPLIT2, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ i860_howto_splitn_reloc, /* special_function */
"R_860_SPLIT2", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x1f07fc, /* src_mask */
0x1f07fc, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_LOW3, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOW3", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xfff8, /* src_mask */
0xfff8, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_LOGOT0, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOGOT0", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_SPGOT0, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_SPGOT0", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_LOGOT1, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOGOT1", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_SPGOT1, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_SPGOT1", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_LOGOTOFF0, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOGOTOFF0", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_SPGOTOFF0, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_SPGOTOFF0", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_LOGOTOFF1, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOGOTOFF1", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_SPGOTOFF1, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_SPGOTOFF1", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_LOGOTOFF2, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOGOTOFF2", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_LOGOTOFF3, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOGOTOFF3", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_LOPC, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOPC", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_HIGHADJ, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ i860_howto_highadj_reloc, /* special_function */
"R_860_HIGHADJ", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_HAGOT, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_HAGOT", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_HAGOTOFF, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_HAGOTOFF", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_HAPC, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_HAPC", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_HIGH, /* type */
16, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_HIGH", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_HIGOT, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_HIGOT", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_HIGOTOFF, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_HIGOTOFF", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ 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;
+lookup_howto (unsigned int rtype)
{
static int initialized = 0;
int i;
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;
+elf32_i860_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
{
unsigned int rtype;
rtype = R_860_COPY;
break;
case BFD_RELOC_860_GLOB_DAT:
- rtype = R_860_GLOB_DAT;
+ rtype = R_860_GLOB_DAT;
break;
case BFD_RELOC_860_JUMP_SLOT:
rtype = R_860_JUMP_SLOT;
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;
+elf32_i860_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent *bfd_reloc,
+ Elf_Internal_Rela *elf_reloc)
{
- bfd_reloc->howto = lookup_howto (ELF32_R_TYPE (elf_reloc->r_info));
+ bfd_reloc->howto
+ = lookup_howto ((unsigned) 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;
+elf32_i860_relocate_splitn (bfd *input_bfd,
+ Elf_Internal_Rela *rello,
+ bfd_byte *contents,
+ bfd_vma value)
{
- bfd_vma insn, t;
+ bfd_vma insn;
reloc_howto_type *howto;
- howto = lookup_howto (ELF32_R_TYPE (rello->r_info));
+ howto = lookup_howto ((unsigned) ELF32_R_TYPE (rello->r_info));
insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
- /* Remove encode bits and intervening bits. Then concatenate the
- two fields into one 16-bit quantity. */
- t = (insn & howto->src_mask);
- t = ((t >> 5) & 0xf8) | (t & 0x7ff);
-
/* Relocate. */
- value += (rello->r_addend + t);
+ value += rello->r_addend;
- /* Separate the fields and re-insert. */
- value = (((value & 0xf8) << 5) | (value & 0x7ff)) & howto->dst_mask;
+ /* Separate the fields and insert. */
+ value = (((value & 0xf800) << 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;
}
-
-#if 0
/* 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, rello, contents, value)
- bfd *input_bfd;
- Elf_Internal_Rela *rello;
- bfd_byte *contents;
- bfd_vma value;
+elf32_i860_relocate_pc16 (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 ((unsigned) 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;
+
+ /* Adjust the value by 4, then separate the fields and insert. */
+ value = (value - 4) >> howto->rightshift;
+ value = (((value & 0xf800) << 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;
+
}
-#endif
+/* Specialized relocation handler for R_860_PC26. This relocation
+ involves a 26-bit, PC-relative field which must be adjusted by 4. */
+static bfd_reloc_status_type
+elf32_i860_relocate_pc26 (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 ((unsigned) 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;
+
+ /* Adjust value by 4 and insert the field. */
+ value = ((value - 4) >> howto->rightshift) & 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;
+elf32_i860_relocate_highadj (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 += 0x8000;
value = ((value >> 16) & 0xffff);
- value = (value + (insn & 0xffff)) & 0xffff;
insn = (insn & 0xffff0000) | value;
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;
+i860_final_link_relocate (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.
zero.
This function is responsible for adjusting the section contents as
- necessary, and (if using Rela relocs and generating a relocateable
+ necessary, and (if using Rela relocs and generating a relocatable
output file) adjusting the reloc addend as necessary.
This function does not have to worry about setting the reloc
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
+ When generating relocatable 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;
+static bfd_boolean
+elf32_i860_relocate_section (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;
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ Elf_Internal_Rela *rel;
+ Elf_Internal_Rela *relend;
+
+ if (info->relocatable)
+ return TRUE;
symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
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;
- }
+ howto = lookup_howto ((unsigned) ELF32_R_TYPE (rel->r_info));
+ h = NULL;
+ sym = NULL;
+ sec = NULL;
- /* 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);
-
+ relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
+
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;
- }
+ bfd_boolean unresolved_reloc, warned;
+
+ RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
+ r_symndx, symtab_hdr, sym_hashes,
+ h, sec, relocation,
+ unresolved_reloc, warned);
}
-
+
switch (r_type)
{
default:
relocation);
break;
-#if 0
case R_860_PC16:
- r = elf32_i860_relocate_pc16 (input_bfd, rel, contents,
- relocation);
+ r = elf32_i860_relocate_pc16 (input_bfd, input_section, rel,
+ contents, relocation);
+ break;
+
+ case R_860_PC26:
+ r = elf32_i860_relocate_pc26 (input_bfd, input_section, rel,
+ contents, relocation);
break;
-#endif
case R_860_SPLIT0:
case R_860_SPLIT1:
case R_860_HIGOTOFF:
r = bfd_reloc_notsupported;
break;
- }
+ }
if (r != bfd_reloc_ok)
{
{
case bfd_reloc_overflow:
r = info->callbacks->reloc_overflow
- (info, name, howto->name, (bfd_vma) 0,
- input_bfd, input_section, rel->r_offset);
+ (info, (h ? &h->root : NULL), 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);
+ (info, name, input_bfd, input_section, rel->r_offset, TRUE);
break;
-
+
case bfd_reloc_outofrange:
msg = _("internal error: out of range error");
break;
(info, msg, name, input_bfd, input_section, rel->r_offset);
if (! r)
- return false;
+ return FALSE;
}
}
- return true;
+ return TRUE;
}
+/* Return whether a symbol name implies a local label. SVR4/860 compilers
+ generate labels of the form ".ep.function_name" to denote the end of a
+ function prolog. These should be local.
+ ??? Do any other SVR4 compilers have this convention? If so, this should
+ be added to the generic routine. */
+static bfd_boolean
+elf32_i860_is_local_label_name (bfd *abfd, const char *name)
+{
+ if (name[0] == '.' && name[1] == 'e' && name[2] == 'p' && name[3] == '.')
+ return TRUE;
+ return _bfd_elf_is_local_label_name (abfd, name);
+}
\f
#define TARGET_BIG_SYM bfd_elf32_i860_vec
#define TARGET_BIG_NAME "elf32-i860"
#define ELF_MACHINE_CODE EM_860
#define ELF_MAXPAGESIZE 4096
+#define elf_backend_rela_normal 1
#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
+#define bfd_elf32_bfd_is_local_label_name elf32_i860_is_local_label_name
#include "elf32-target.h"