/* D10V-specific support for 32-bit ELF
- Copyright 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
- Free Software Foundation, Inc.
+ Copyright (C) 1996-2018 Free Software Foundation, Inc.
Contributed by Martin Hunt (hunt@cygnus.com).
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/d10v.h"
/* This reloc does nothing. */
HOWTO (R_D10V_NONE, /* Type. */
0, /* Rightshift. */
- 2, /* Size (0 = byte, 1 = short, 2 = long). */
- 32, /* Bitsize. */
+ 3, /* Size (0 = byte, 1 = short, 2 = long). */
+ 0, /* Bitsize. */
FALSE, /* PC_relative. */
0, /* Bitpos. */
complain_overflow_dont,/* Complain_on_overflow. */
/* An PC Relative 10-bit relocation, shifted by 2, right container. */
HOWTO (R_D10V_10_PCREL_R, /* Type. */
- 2, /* Rightshift. */
- 2, /* Size (0 = byte, 1 = short, 2 = long). */
- 7, /* Bitsize. */
- TRUE, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_bitfield, /* Complain_on_overflow. */
+ 2, /* Rightshift. */
+ 2, /* Size (0 = byte, 1 = short, 2 = long). */
+ 8, /* Bitsize. */
+ TRUE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_signed, /* Complain_on_overflow. */
bfd_elf_generic_reloc, /* Special_function. */
"R_D10V_10_PCREL_R", /* Name. */
- FALSE, /* Partial_inplace. */
+ FALSE, /* Partial_inplace. */
0xff, /* Src_mask. */
- 0xff, /* Dst_mask. */
+ 0xff, /* Dst_mask. */
TRUE), /* PCrel_offset. */
/* An PC Relative 10-bit relocation, shifted by 2, left container. */
HOWTO (R_D10V_10_PCREL_L, /* Type. */
- 2, /* Rightshift. */
- 2, /* Size (0 = byte, 1 = short, 2 = long). */
- 7, /* Bitsize. */
- TRUE, /* PC_relative. */
- 15, /* Bitpos. */
- complain_overflow_bitfield, /* Complain_on_overflow. */
+ 2, /* Rightshift. */
+ 2, /* Size (0 = byte, 1 = short, 2 = long). */
+ 8, /* Bitsize. */
+ TRUE, /* PC_relative. */
+ 15, /* Bitpos. */
+ complain_overflow_signed, /* Complain_on_overflow. */
bfd_elf_generic_reloc, /* Special_function. */
"R_D10V_10_PCREL_L", /* Name. */
- FALSE, /* Partial_inplace. */
+ FALSE, /* Partial_inplace. */
0x07f8000, /* Src_mask. */
- 0x07f8000, /* Dst_mask. */
+ 0x07f8000, /* Dst_mask. */
TRUE), /* PCrel_offset. */
/* A 16 bit absolute relocation. */
HOWTO (R_D10V_18_PCREL, /* Type. */
2, /* Rightshift. */
2, /* Size (0 = byte, 1 = short, 2 = long). */
- 15, /* Bitsize. */
+ 16, /* Bitsize. */
TRUE, /* PC_relative. */
0, /* Bitpos. */
- complain_overflow_bitfield, /* Complain_on_overflow. */
+ complain_overflow_signed, /* Complain_on_overflow. */
bfd_elf_generic_reloc, /* Special_function. */
"R_D10V_18_PCREL", /* Name. */
FALSE, /* Partial_inplace. */
/* GNU extension to record C++ vtable hierarchy. */
HOWTO (R_D10V_GNU_VTINHERIT, /* Type. */
- 0, /* Rightshift. */
- 2, /* Size (0 = byte, 1 = short, 2 = long). */
- 0, /* Bitsize. */
- FALSE, /* PC_relative. */
- 0, /* Bitpos. */
+ 0, /* Rightshift. */
+ 2, /* Size (0 = byte, 1 = short, 2 = long). */
+ 0, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
complain_overflow_dont,/* Complain_on_overflow. */
- NULL, /* Special_function. */
+ NULL, /* Special_function. */
"R_D10V_GNU_VTINHERIT",/* Name. */
- FALSE, /* Partial_inplace. */
- 0, /* Src_mask. */
- 0, /* Dst_mask. */
- FALSE), /* PCrel_offset. */
+ FALSE, /* Partial_inplace. */
+ 0, /* Src_mask. */
+ 0, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
/* GNU extension to record C++ vtable member usage. */
- HOWTO (R_D10V_GNU_VTENTRY, /* Type. */
- 0, /* Rightshift. */
- 2, /* Size (0 = byte, 1 = short, 2 = long). */
- 0, /* Bitsize. */
- FALSE, /* PC_relative. */
- 0, /* Bitpos. */
+ HOWTO (R_D10V_GNU_VTENTRY, /* Type. */
+ 0, /* Rightshift. */
+ 2, /* Size (0 = byte, 1 = short, 2 = long). */
+ 0, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
complain_overflow_dont,/* Complain_on_overflow. */
_bfd_elf_rel_vtable_reloc_fn, /* Special_function. */
- "R_D10V_GNU_VTENTRY", /* Name. */
- FALSE, /* Partial_inplace. */
- 0, /* Src_mask. */
- 0, /* Dst_mask. */
- FALSE), /* PCrel_offset. */
+ "R_D10V_GNU_VTENTRY", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0, /* Src_mask. */
+ 0, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
};
/* Map BFD reloc types to D10V ELF reloc types. */
return NULL;
}
+static reloc_howto_type *
+bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < sizeof (elf_d10v_howto_table) / sizeof (elf_d10v_howto_table[0]);
+ i++)
+ if (elf_d10v_howto_table[i].name != NULL
+ && strcasecmp (elf_d10v_howto_table[i].name, r_name) == 0)
+ return &elf_d10v_howto_table[i];
+
+ return NULL;
+}
+
/* Set the howto pointer for an D10V ELF reloc. */
-static void
-d10v_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
+static bfd_boolean
+d10v_info_to_howto_rel (bfd *abfd,
arelent *cache_ptr,
Elf_Internal_Rela *dst)
{
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
- BFD_ASSERT (r_type < (unsigned int) R_D10V_max);
+ if (r_type >= (unsigned int) R_D10V_max)
+ {
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
+ abfd, r_type);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
cache_ptr->howto = &elf_d10v_howto_table[r_type];
+ return TRUE;
}
static asection *
elf32_d10v_gc_mark_hook (asection *sec,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info,
Elf_Internal_Rela *rel,
struct elf_link_hash_entry *h,
Elf_Internal_Sym *sym)
{
if (h != NULL)
- {
- switch (ELF32_R_TYPE (rel->r_info))
+ switch (ELF32_R_TYPE (rel->r_info))
{
case R_D10V_GNU_VTINHERIT:
case R_D10V_GNU_VTENTRY:
- break;
-
- default:
- switch (h->root.type)
- {
- case bfd_link_hash_defined:
- case bfd_link_hash_defweak:
- return h->root.u.def.section;
-
- case bfd_link_hash_common:
- return h->root.u.c.p->section;
-
- default:
- break;
- }
- }
- }
- else
- return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
+ return NULL;
+ }
- return NULL;
-}
-
-static bfd_boolean
-elf32_d10v_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
- asection *sec ATTRIBUTE_UNUSED,
- const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
-{
- /* We don't use got and plt entries for d10v. */
- return TRUE;
+ return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
}
/* Look through the relocs for a section during the first phase.
const Elf_Internal_Rela *relocs)
{
Elf_Internal_Shdr *symtab_hdr;
- struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
+ struct elf_link_hash_entry **sym_hashes;
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
return TRUE;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
- sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
- if (!elf_bad_symtab (abfd))
- sym_hashes_end -= symtab_hdr->sh_info;
rel_end = relocs + sec->reloc_count;
for (rel = relocs; rel < rel_end; rel++)
r_symndx = ELF32_R_SYM (rel->r_info);
if (r_symndx < symtab_hdr->sh_info)
- h = NULL;
+ h = NULL;
else
{
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
}
switch (ELF32_R_TYPE (rel->r_info))
- {
- /* This relocation describes the C++ object vtable hierarchy.
- Reconstruct it for later use during GC. */
- case R_D10V_GNU_VTINHERIT:
- if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
- return FALSE;
- break;
-
- /* This relocation describes which C++ vtable entries are actually
- used. Record for later use during GC. */
- case R_D10V_GNU_VTENTRY:
- if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
- return FALSE;
- break;
- }
+ {
+ /* This relocation describes the C++ object vtable hierarchy.
+ Reconstruct it for later use during GC. */
+ case R_D10V_GNU_VTINHERIT:
+ if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
+ return FALSE;
+ break;
+
+ /* This relocation describes which C++ vtable entries are actually
+ used. Record for later use during GC. */
+ case R_D10V_GNU_VTENTRY:
+ BFD_ASSERT (h != NULL);
+ if (h != NULL
+ && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
+ return FALSE;
+ break;
+ }
}
return TRUE;
r_type = ELF32_R_TYPE (rel->r_info);
if (r_type == R_D10V_GNU_VTENTRY
- || r_type == R_D10V_GNU_VTINHERIT)
- continue;
+ || r_type == R_D10V_GNU_VTINHERIT)
+ continue;
howto = elf_d10v_howto_table + r_type;
-
- if (info->relocatable)
- {
- bfd_vma val;
- bfd_byte *where;
-
- /* This is a relocatable 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)
- continue;
-
- sym = local_syms + r_symndx;
- if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
- continue;
-
- sec = local_sections[r_symndx];
- val = sec->output_offset;
- if (val == 0)
- continue;
-
- where = contents + rel->r_offset;
- val += extract_rel_addend (input_bfd, where, howto);
- insert_rel_addend (input_bfd, where, howto, val);
- continue;
- }
-
- /* This is a final link. */
h = NULL;
sym = NULL;
sec = NULL;
relocation = (sec->output_section->vma
+ sec->output_offset
+ sym->st_value);
- if ((sec->flags & SEC_MERGE)
- && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
+ if (ELF_ST_TYPE (sym->st_info) == STT_SECTION
+ && ((sec->flags & SEC_MERGE) != 0
+ || (bfd_link_relocatable (info)
+ && sec->output_offset != 0)))
{
- asection *msec;
bfd_vma addend;
bfd_byte *where = contents + rel->r_offset;
addend = extract_rel_addend (input_bfd, where, howto);
- msec = sec;
- addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend);
- addend -= relocation;
- addend += msec->output_section->vma + msec->output_offset;
+
+ if (bfd_link_relocatable (info))
+ addend += sec->output_offset;
+ else
+ {
+ asection *msec = sec;
+ addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec,
+ addend);
+ addend -= relocation;
+ addend += msec->output_section->vma + msec->output_offset;
+ }
insert_rel_addend (input_bfd, where, howto, addend);
}
}
else
{
- bfd_boolean unresolved_reloc, warned;
+ bfd_boolean unresolved_reloc, warned, ignored;
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
r_symndx, symtab_hdr, sym_hashes,
h, sec, relocation,
- unresolved_reloc, warned);
+ unresolved_reloc, warned, ignored);
}
+ if (sec != NULL && discarded_section (sec))
+ RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
+ rel, 1, relend, howto, 0, contents);
+
+ if (bfd_link_relocatable (info))
+ continue;
+
if (h != NULL)
name = h->root.root.string;
else
}
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
- contents, rel->r_offset,
- relocation, (bfd_vma) 0);
+ contents, rel->r_offset,
+ relocation, (bfd_vma) 0);
if (r != bfd_reloc_ok)
{
switch (r)
{
case bfd_reloc_overflow:
- if (!((*info->callbacks->reloc_overflow)
- (info, (h ? &h->root : NULL), name, howto->name,
- (bfd_vma) 0, input_bfd, input_section,
- rel->r_offset)))
- return FALSE;
+ (*info->callbacks->reloc_overflow)
+ (info, (h ? &h->root : NULL), name, howto->name,
+ (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
break;
case bfd_reloc_undefined:
- if (!((*info->callbacks->undefined_symbol)
- (info, name, input_bfd, input_section,
- rel->r_offset, TRUE)))
- return FALSE;
+ (*info->callbacks->undefined_symbol)
+ (info, name, input_bfd, input_section, rel->r_offset, TRUE);
break;
case bfd_reloc_outofrange:
/* fall through */
common_error:
- if (!((*info->callbacks->warning)
- (info, msg, name, input_bfd, input_section,
- rel->r_offset)))
- return FALSE;
+ (*info->callbacks->warning) (info, msg, name, input_bfd,
+ input_section, rel->r_offset);
break;
}
}
#define ELF_MACHINE_ALT1 EM_CYGNUS_D10V
#define ELF_MAXPAGESIZE 0x1000
-#define TARGET_BIG_SYM bfd_elf32_d10v_vec
+#define TARGET_BIG_SYM d10v_elf32_vec
#define TARGET_BIG_NAME "elf32-d10v"
-#define elf_info_to_howto 0
-#define elf_info_to_howto_rel d10v_info_to_howto_rel
-#define elf_backend_object_p 0
+#define elf_info_to_howto NULL
+#define elf_info_to_howto_rel d10v_info_to_howto_rel
+#define elf_backend_object_p 0
#define elf_backend_final_write_processing 0
-#define elf_backend_gc_mark_hook elf32_d10v_gc_mark_hook
-#define elf_backend_gc_sweep_hook elf32_d10v_gc_sweep_hook
-#define elf_backend_check_relocs elf32_d10v_check_relocs
-#define elf_backend_relocate_section elf32_d10v_relocate_section
-#define elf_backend_can_gc_sections 1
+#define elf_backend_gc_mark_hook elf32_d10v_gc_mark_hook
+#define elf_backend_check_relocs elf32_d10v_check_relocs
+#define elf_backend_relocate_section elf32_d10v_relocate_section
+#define elf_backend_can_gc_sections 1
#include "elf32-target.h"