/* Motorola 68k series support for 32-bit ELF
- Copyright 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
- 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
- Free Software Foundation, Inc.
+ Copyright (C) 1993-2014 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
#include "elf/m68k.h"
#include "opcode/m68k.h"
-static reloc_howto_type *reloc_type_lookup
- PARAMS ((bfd *, bfd_reloc_code_real_type));
-static void rtype_to_howto
- PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
-static struct bfd_hash_entry *elf_m68k_link_hash_newfunc
- PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
-static struct bfd_link_hash_table *elf_m68k_link_hash_table_create
- PARAMS ((bfd *));
-static bfd_boolean elf_m68k_check_relocs
- PARAMS ((bfd *, struct bfd_link_info *, asection *,
- const Elf_Internal_Rela *));
-static bfd_boolean elf_m68k_adjust_dynamic_symbol
- PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
-static bfd_boolean elf_m68k_size_dynamic_sections
- PARAMS ((bfd *, struct bfd_link_info *));
-static bfd_boolean elf_m68k_discard_copies
- PARAMS ((struct elf_link_hash_entry *, PTR));
-static bfd_boolean elf_m68k_relocate_section
- PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
- Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
-static bfd_boolean elf_m68k_finish_dynamic_symbol
- PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
- Elf_Internal_Sym *));
-static bfd_boolean elf_m68k_finish_dynamic_sections
- PARAMS ((bfd *, struct bfd_link_info *));
-
-static bfd_boolean elf32_m68k_set_private_flags
- PARAMS ((bfd *, flagword));
-static bfd_boolean elf32_m68k_merge_private_bfd_data
- PARAMS ((bfd *, bfd *));
-static bfd_boolean elf32_m68k_print_private_bfd_data
- PARAMS ((bfd *, PTR));
-static enum elf_reloc_type_class elf32_m68k_reloc_type_class
- PARAMS ((const Elf_Internal_Rela *));
-
-static reloc_howto_type howto_table[] = {
+static bfd_boolean
+elf_m68k_discard_copies (struct elf_link_hash_entry *, void *);
+
+static reloc_howto_type howto_table[] =
+{
HOWTO(R_68K_NONE, 0, 0, 0, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_NONE", FALSE, 0, 0x00000000,FALSE),
HOWTO(R_68K_32, 0, 2,32, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_32", FALSE, 0, 0xffffffff,FALSE),
HOWTO(R_68K_16, 0, 1,16, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_16", FALSE, 0, 0x0000ffff,FALSE),
};
static reloc_howto_type *
-reloc_type_lookup (abfd, code)
- bfd *abfd ATTRIBUTE_UNUSED;
- bfd_reloc_code_real_type code;
+reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
{
unsigned int i;
for (i = 0; i < sizeof (reloc_map) / sizeof (reloc_map[0]); i++)
return ret;
}
+/* Destroy an m68k ELF linker hash table. */
+
+static void
+elf_m68k_link_hash_table_free (struct bfd_link_hash_table *_htab)
+{
+ struct elf_m68k_link_hash_table *htab;
+
+ htab = (struct elf_m68k_link_hash_table *) _htab;
+
+ if (htab->multi_got_.bfd2got != NULL)
+ {
+ htab_delete (htab->multi_got_.bfd2got);
+ htab->multi_got_.bfd2got = NULL;
+ }
+ _bfd_elf_link_hash_table_free (_htab);
+}
+
/* Create an m68k ELF linker hash table. */
static struct bfd_link_hash_table *
struct elf_m68k_link_hash_table *ret;
bfd_size_type amt = sizeof (struct elf_m68k_link_hash_table);
- ret = (struct elf_m68k_link_hash_table *) bfd_malloc (amt);
+ ret = (struct elf_m68k_link_hash_table *) bfd_zmalloc (amt);
if (ret == (struct elf_m68k_link_hash_table *) NULL)
return NULL;
return NULL;
}
- ret->sym_cache.abfd = NULL;
- ret->plt_info = NULL;
- ret->local_gp_p = FALSE;
- ret->use_neg_got_offsets_p = FALSE;
- ret->allow_multigot_p = FALSE;
- ret->multi_got_.bfd2got = NULL;
ret->multi_got_.global_symndx = 1;
return &ret->root.root;
}
-/* Destruct local data. */
-
-static void
-elf_m68k_link_hash_table_free (struct bfd_link_hash_table *_htab)
-{
- struct elf_m68k_link_hash_table *htab;
-
- htab = (struct elf_m68k_link_hash_table *) _htab;
-
- if (htab->multi_got_.bfd2got != NULL)
- {
- htab_delete (htab->multi_got_.bfd2got);
- htab->multi_got_.bfd2got = NULL;
- }
-}
-
/* Set the right machine number. */
static bfd_boolean
/* Keep m68k-specific flags in the ELF header. */
static bfd_boolean
-elf32_m68k_set_private_flags (abfd, flags)
- bfd *abfd;
- flagword flags;
+elf32_m68k_set_private_flags (bfd *abfd, flagword flags)
{
elf_elfheader (abfd)->e_flags = flags;
elf_flags_init (abfd) = TRUE;
/* Merge backend specific data from an object file to the output
object file when linking. */
static bfd_boolean
-elf32_m68k_merge_private_bfd_data (ibfd, obfd)
- bfd *ibfd;
- bfd *obfd;
+elf32_m68k_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
{
flagword out_flags;
flagword in_flags;
table. */
static bfd_boolean
-elf_m68k_check_relocs (abfd, info, sec, relocs)
- bfd *abfd;
- struct bfd_link_info *info;
- asection *sec;
- const Elf_Internal_Rela *relocs;
+elf_m68k_check_relocs (bfd *abfd,
+ struct bfd_link_info *info,
+ asection *sec,
+ const Elf_Internal_Rela *relocs)
{
bfd *dynobj;
Elf_Internal_Shdr *symtab_hdr;
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;
+
+ /* PR15323, ref flags aren't set for references in the same
+ object. */
+ h->root.non_ir_ref = 1;
}
switch (ELF32_R_TYPE (rel->r_info))
understand. */
static bfd_boolean
-elf_m68k_adjust_dynamic_symbol (info, h)
- struct bfd_link_info *info;
- struct elf_link_hash_entry *h;
+elf_m68k_adjust_dynamic_symbol (struct bfd_link_info *info,
+ struct elf_link_hash_entry *h)
{
struct elf_m68k_link_hash_table *htab;
bfd *dynobj;
/* Set the sizes of the dynamic sections. */
static bfd_boolean
-elf_m68k_size_dynamic_sections (output_bfd, info)
- bfd *output_bfd ATTRIBUTE_UNUSED;
- struct bfd_link_info *info;
+elf_m68k_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info)
{
bfd *dynobj;
asection *s;
if (info->shared)
elf_link_hash_traverse (elf_hash_table (info),
elf_m68k_discard_copies,
- (PTR) info);
+ info);
/* The check_relocs and adjust_dynamic_symbol entry points have
determined the sizes of the various dynamic sections. Allocate
#define add_dynamic_entry(TAG, VAL) \
_bfd_elf_add_dynamic_entry (info, TAG, VAL)
- if (!info->shared)
+ if (info->executable)
{
if (!add_dynamic_entry (DT_DEBUG, 0))
return FALSE;
case. */
static bfd_boolean
-elf_m68k_discard_copies (h, inf)
- struct elf_link_hash_entry *h;
- PTR inf;
+elf_m68k_discard_copies (struct elf_link_hash_entry *h,
+ void * inf)
{
struct bfd_link_info *info = (struct bfd_link_info *) inf;
struct elf_m68k_pcrel_relocs_copied *s;
/* Relocate an M68K ELF section. */
static bfd_boolean
-elf_m68k_relocate_section (output_bfd, info, input_bfd, input_section,
- contents, relocs, local_syms, local_sections)
- bfd *output_bfd;
- 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_m68k_relocate_section (bfd *output_bfd,
+ 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)
{
bfd *dynobj;
Elf_Internal_Shdr *symtab_hdr;
}
else
{
- bfd_boolean warned;
+ bfd_boolean 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))
dynamic sections here. */
static bfd_boolean
-elf_m68k_finish_dynamic_symbol (output_bfd, info, h, sym)
- bfd *output_bfd;
- struct bfd_link_info *info;
- struct elf_link_hash_entry *h;
- Elf_Internal_Sym *sym;
+elf_m68k_finish_dynamic_symbol (bfd *output_bfd,
+ struct bfd_link_info *info,
+ struct elf_link_hash_entry *h,
+ Elf_Internal_Sym *sym)
{
bfd *dynobj;
/* Finish up the dynamic sections. */
static bfd_boolean
-elf_m68k_finish_dynamic_sections (output_bfd, info)
- bfd *output_bfd;
- struct bfd_link_info *info;
+elf_m68k_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
{
bfd *dynobj;
asection *sgot;
/* Get a copy of the native relocations. */
internal_relocs = (_bfd_elf_link_read_relocs
- (abfd, datasec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
+ (abfd, datasec, NULL, (Elf_Internal_Rela *) NULL,
info->keep_memory));
if (internal_relocs == NULL)
goto error_return;
}
static enum elf_reloc_type_class
-elf32_m68k_reloc_type_class (rela)
- const Elf_Internal_Rela *rela;
+elf32_m68k_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ const asection *rel_sec ATTRIBUTE_UNUSED,
+ const Elf_Internal_Rela *rela)
{
switch ((int) ELF32_R_TYPE (rela->r_info))
{
case 154: /* Linux/m68k */
/* pr_cursig */
- elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
+ elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
/* pr_pid */
- elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 22);
+ elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 22);
/* pr_reg */
offset = 70;
return FALSE;
case 124: /* Linux/m68k elf_prpsinfo. */
- elf_tdata (abfd)->core_pid
+ elf_tdata (abfd)->core->pid
= bfd_get_32 (abfd, note->descdata + 12);
- elf_tdata (abfd)->core_program
+ elf_tdata (abfd)->core->program
= _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
- elf_tdata (abfd)->core_command
+ elf_tdata (abfd)->core->command
= _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
}
onto the end of the args in some (at least one anyway)
implementations, so strip it off if it exists. */
{
- char *command = elf_tdata (abfd)->core_command;
+ char *command = elf_tdata (abfd)->core->command;
int n = strlen (command);
if (n > 0 && command[n - 1] == ' ')
return TRUE;
}
-#define TARGET_BIG_SYM bfd_elf32_m68k_vec
+/* Hook called by the linker routine which adds symbols from an object
+ file. */
+
+static bfd_boolean
+elf_m68k_add_symbol_hook (bfd *abfd,
+ struct bfd_link_info *info,
+ Elf_Internal_Sym *sym,
+ const char **namep ATTRIBUTE_UNUSED,
+ flagword *flagsp ATTRIBUTE_UNUSED,
+ asection **secp ATTRIBUTE_UNUSED,
+ bfd_vma *valp ATTRIBUTE_UNUSED)
+{
+ if ((abfd->flags & DYNAMIC) == 0
+ && (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
+ || ELF_ST_BIND (sym->st_info) == STB_GNU_UNIQUE))
+ elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE;
+
+ return TRUE;
+}
+
+#define TARGET_BIG_SYM m68k_elf32_vec
#define TARGET_BIG_NAME "elf32-m68k"
#define ELF_MACHINE_CODE EM_68K
#define ELF_MAXPAGESIZE 0x2000
#define elf_backend_object_p elf32_m68k_object_p
#define elf_backend_grok_prstatus elf_m68k_grok_prstatus
#define elf_backend_grok_psinfo elf_m68k_grok_psinfo
+#define elf_backend_add_symbol_hook elf_m68k_add_symbol_hook
#define elf_backend_can_gc_sections 1
#define elf_backend_can_refcount 1
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