/* Intel i860 specific support for 32-bit ELF.
- Copyright 1993, 2000 Free Software Foundation, Inc.
+ Copyright 1993, 1995, 1999, 2000, 2001 Free Software Foundation, Inc.
#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
+static void elf32_i860_info_to_howto_rela
PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
static bfd_reloc_status_type elf32_i860_relocate_splitn
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_pc26
+ 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
+static boolean elf32_i860_relocate_section
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
static boolean elf32_i860_is_local_label_name
PARAMS ((bfd *, const char *));
-
-
/* This howto table is preliminary. */
static reloc_howto_type elf32_i860_howto_table [] =
{
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
};
-
\f
static unsigned char elf_code_to_howto_index[R_860_max + 1];
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)
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)
arelent *bfd_reloc;
Elf64_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. */
{
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);
/* Relocate. */
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. */
{
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);
/* Adjust for PC-relative relocation. */
}
+/* 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 (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 ((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
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
rel->r_addend);
}
-
/* Relocate an i860 ELF section.
This is boiler-plate code copied from fr30.
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)
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];
}
/* This is a final link. */
- howto = lookup_howto (ELF32_R_TYPE (rel->r_info));
- h = NULL;
- sym = NULL;
- sec = NULL;
-
+ howto = lookup_howto ((unsigned) 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)
{
relocation = 0;
}
}
-
+
switch (r_type)
{
default:
contents, relocation);
break;
+ case R_860_PC26:
+ r = elf32_i860_relocate_pc26 (input_bfd, input_section, rel,
+ contents, relocation);
+ break;
+
case R_860_SPLIT0:
case R_860_SPLIT1:
case R_860_SPLIT2:
case R_860_HIGOTOFF:
r = bfd_reloc_notsupported;
break;
- }
+ }
if (r != bfd_reloc_ok)
{
(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;
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.
return _bfd_elf_is_local_label_name (abfd, name);
}
-
-
\f
#define TARGET_BIG_SYM bfd_elf32_i860_vec
#define TARGET_BIG_NAME "elf32-i860"
projects / binutils.git / blobdiff