#ifndef USE_REL
#define USE_REL 0
#endif
typedef unsigned long int insn32;
typedef unsigned short int insn16;
static bfd_boolean elf32_arm_set_private_flags
PARAMS ((bfd *, flagword));
static bfd_boolean elf32_arm_copy_private_bfd_data
PARAMS ((bfd *, bfd *));
static bfd_boolean elf32_arm_merge_private_bfd_data
PARAMS ((bfd *, bfd *));
static bfd_boolean elf32_arm_print_private_bfd_data
PARAMS ((bfd *, PTR));
static int elf32_arm_get_symbol_type
PARAMS (( Elf_Internal_Sym *, int));
static struct bfd_link_hash_table *elf32_arm_link_hash_table_create
PARAMS ((bfd *));
static bfd_reloc_status_type elf32_arm_final_link_relocate
PARAMS ((reloc_howto_type *, bfd *, bfd *, asection *, bfd_byte *,
Elf_Internal_Rela *, bfd_vma, struct bfd_link_info *, asection *,
const char *, int, struct elf_link_hash_entry *));
static insn32 insert_thumb_branch
PARAMS ((insn32, int));
static struct elf_link_hash_entry *find_thumb_glue
PARAMS ((struct bfd_link_info *, const char *, bfd *));
static struct elf_link_hash_entry *find_arm_glue
PARAMS ((struct bfd_link_info *, const char *, bfd *));
static void elf32_arm_post_process_headers
PARAMS ((bfd *, struct bfd_link_info *));
static int elf32_arm_to_thumb_stub
PARAMS ((struct bfd_link_info *, const char *, bfd *, bfd *, asection *,
bfd_byte *, asection *, bfd_vma, bfd_signed_vma, bfd_vma));
static int elf32_thumb_to_arm_stub
PARAMS ((struct bfd_link_info *, const char *, bfd *, bfd *, asection *,
bfd_byte *, asection *, bfd_vma, bfd_signed_vma, bfd_vma));
static bfd_boolean elf32_arm_relocate_section
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
static asection * elf32_arm_gc_mark_hook
PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
struct elf_link_hash_entry *, Elf_Internal_Sym *));
static bfd_boolean elf32_arm_gc_sweep_hook
PARAMS ((bfd *, struct bfd_link_info *, asection *,
const Elf_Internal_Rela *));
static bfd_boolean elf32_arm_check_relocs
PARAMS ((bfd *, struct bfd_link_info *, asection *,
const Elf_Internal_Rela *));
static bfd_boolean elf32_arm_find_nearest_line
PARAMS ((bfd *, asection *, asymbol **, bfd_vma, const char **,
const char **, unsigned int *));
static bfd_boolean elf32_arm_adjust_dynamic_symbol
PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
static bfd_boolean elf32_arm_size_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
static bfd_boolean elf32_arm_finish_dynamic_symbol
PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
Elf_Internal_Sym *));
static bfd_boolean elf32_arm_finish_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
static struct bfd_hash_entry * elf32_arm_link_hash_newfunc
PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
#if USE_REL
static void arm_add_to_rel
PARAMS ((bfd *, bfd_byte *, reloc_howto_type *, bfd_signed_vma));
#endif
static bfd_boolean allocate_dynrelocs
PARAMS ((struct elf_link_hash_entry *h, PTR inf));
static bfd_boolean create_got_section
PARAMS ((bfd * dynobj, struct bfd_link_info * info));
static bfd_boolean elf32_arm_create_dynamic_sections
PARAMS ((bfd * dynobj, struct bfd_link_info * info));
static enum elf_reloc_type_class elf32_arm_reloc_type_class
PARAMS ((const Elf_Internal_Rela *));
static bfd_boolean elf32_arm_object_p
PARAMS ((bfd *));
#ifndef ELFARM_NABI_C_INCLUDED
static void record_arm_to_thumb_glue
PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
static void record_thumb_to_arm_glue
PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
bfd_boolean bfd_elf32_arm_allocate_interworking_sections
PARAMS ((struct bfd_link_info *));
bfd_boolean bfd_elf32_arm_get_bfd_for_interworking
PARAMS ((bfd *, struct bfd_link_info *));
bfd_boolean bfd_elf32_arm_process_before_allocation
PARAMS ((bfd *, struct bfd_link_info *, int));
#endif
#define INTERWORK_FLAG(abfd) (elf_elfheader (abfd)->e_flags & EF_ARM_INTERWORK)
#define THUMB2ARM_GLUE_SECTION_NAME ".glue_7t"
#define THUMB2ARM_GLUE_ENTRY_NAME "__%s_from_thumb"
#define ARM2THUMB_GLUE_SECTION_NAME ".glue_7"
#define ARM2THUMB_GLUE_ENTRY_NAME "__%s_from_arm"
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
#ifdef FOUR_WORD_PLT
#define PLT_HEADER_SIZE 16
#define PLT_ENTRY_SIZE 16
static const bfd_vma elf32_arm_plt0_entry [PLT_HEADER_SIZE / 4] =
{
0xe52de004,
0xe59fe010,
0xe08fe00e,
0xe5bef008,
};
static const bfd_vma elf32_arm_plt_entry [PLT_ENTRY_SIZE / 4] =
{
0xe28fc600,
0xe28cca00,
0xe5bcf000,
0x00000000,
};
#else
#define PLT_HEADER_SIZE 20
#define PLT_ENTRY_SIZE 12
static const bfd_vma elf32_arm_plt0_entry [PLT_HEADER_SIZE / 4] =
{
0xe52de004,
0xe59fe004,
0xe08fe00e,
0xe5bef008,
0x00000000,
};
static const bfd_vma elf32_arm_plt_entry [PLT_ENTRY_SIZE / 4] =
{
0xe28fc600,
0xe28cca00,
0xe5bcf000,
};
#endif
struct elf32_arm_relocs_copied
{
struct elf32_arm_relocs_copied * next;
asection * section;
bfd_size_type count;
};
struct elf32_arm_link_hash_entry
{
struct elf_link_hash_entry root;
struct elf32_arm_relocs_copied * relocs_copied;
};
#define elf32_arm_link_hash_traverse(table, func, info) \
(elf_link_hash_traverse \
(&(table)->root, \
(bfd_boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
(info)))
#define elf32_arm_hash_table(info) \
((struct elf32_arm_link_hash_table *) ((info)->hash))
struct elf32_arm_link_hash_table
{
struct elf_link_hash_table root;
bfd_size_type thumb_glue_size;
bfd_size_type arm_glue_size;
bfd * bfd_of_glue_owner;
int no_pipeline_knowledge;
asection *sgot;
asection *sgotplt;
asection *srelgot;
asection *splt;
asection *srelplt;
asection *sdynbss;
asection *srelbss;
struct sym_sec_cache sym_sec;
};
static struct bfd_hash_entry *
elf32_arm_link_hash_newfunc (entry, table, string)
struct bfd_hash_entry * entry;
struct bfd_hash_table * table;
const char * string;
{
struct elf32_arm_link_hash_entry * ret =
(struct elf32_arm_link_hash_entry *) entry;
if (ret == (struct elf32_arm_link_hash_entry *) NULL)
ret = ((struct elf32_arm_link_hash_entry *)
bfd_hash_allocate (table,
sizeof (struct elf32_arm_link_hash_entry)));
if (ret == (struct elf32_arm_link_hash_entry *) NULL)
return (struct bfd_hash_entry *) ret;
ret = ((struct elf32_arm_link_hash_entry *)
_bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
table, string));
if (ret != (struct elf32_arm_link_hash_entry *) NULL)
ret->relocs_copied = NULL;
return (struct bfd_hash_entry *) ret;
}
static bfd_boolean
create_got_section (dynobj, info)
bfd *dynobj;
struct bfd_link_info *info;
{
struct elf32_arm_link_hash_table *htab;
if (! _bfd_elf_create_got_section (dynobj, info))
return FALSE;
htab = elf32_arm_hash_table (info);
htab->sgot = bfd_get_section_by_name (dynobj, ".got");
htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
if (!htab->sgot || !htab->sgotplt)
abort ();
htab->srelgot = bfd_make_section (dynobj, ".rel.got");
if (htab->srelgot == NULL
|| ! bfd_set_section_flags (dynobj, htab->srelgot,
(SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
| SEC_IN_MEMORY | SEC_LINKER_CREATED
| SEC_READONLY))
|| ! bfd_set_section_alignment (dynobj, htab->srelgot, 2))
return FALSE;
return TRUE;
}
static bfd_boolean
elf32_arm_create_dynamic_sections (dynobj, info)
bfd *dynobj;
struct bfd_link_info *info;
{
struct elf32_arm_link_hash_table *htab;
htab = elf32_arm_hash_table (info);
if (!htab->sgot && !create_got_section (dynobj, info))
return FALSE;
if (!_bfd_elf_create_dynamic_sections (dynobj, info))
return FALSE;
htab->splt = bfd_get_section_by_name (dynobj, ".plt");
htab->srelplt = bfd_get_section_by_name (dynobj, ".rel.plt");
htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
if (!info->shared)
htab->srelbss = bfd_get_section_by_name (dynobj, ".rel.bss");
if (!htab->splt || !htab->srelplt || !htab->sdynbss
|| (!info->shared && !htab->srelbss))
abort ();
return TRUE;
}
static void
elf32_arm_copy_indirect_symbol (const struct elf_backend_data *bed,
struct elf_link_hash_entry *dir,
struct elf_link_hash_entry *ind)
{
struct elf32_arm_link_hash_entry *edir, *eind;
edir = (struct elf32_arm_link_hash_entry *) dir;
eind = (struct elf32_arm_link_hash_entry *) ind;
if (eind->relocs_copied != NULL)
{
if (edir->relocs_copied != NULL)
{
struct elf32_arm_relocs_copied **pp;
struct elf32_arm_relocs_copied *p;
if (ind->root.type == bfd_link_hash_indirect)
abort ();
for (pp = &eind->relocs_copied; (p = *pp) != NULL; )
{
struct elf32_arm_relocs_copied *q;
for (q = edir->relocs_copied; q != NULL; q = q->next)
if (q->section == p->section)
{
q->count += p->count;
*pp = p->next;
break;
}
if (q == NULL)
pp = &p->next;
}
*pp = edir->relocs_copied;
}
edir->relocs_copied = eind->relocs_copied;
eind->relocs_copied = NULL;
}
_bfd_elf_link_hash_copy_indirect (bed, dir, ind);
}
static struct bfd_link_hash_table *
elf32_arm_link_hash_table_create (abfd)
bfd *abfd;
{
struct elf32_arm_link_hash_table *ret;
bfd_size_type amt = sizeof (struct elf32_arm_link_hash_table);
ret = (struct elf32_arm_link_hash_table *) bfd_malloc (amt);
if (ret == (struct elf32_arm_link_hash_table *) NULL)
return NULL;
if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
elf32_arm_link_hash_newfunc))
{
free (ret);
return NULL;
}
ret->sgot = NULL;
ret->sgotplt = NULL;
ret->srelgot = NULL;
ret->splt = NULL;
ret->srelplt = NULL;
ret->sdynbss = NULL;
ret->srelbss = NULL;
ret->thumb_glue_size = 0;
ret->arm_glue_size = 0;
ret->bfd_of_glue_owner = NULL;
ret->no_pipeline_knowledge = 0;
ret->sym_sec.abfd = NULL;
return &ret->root.root;
}
static struct elf_link_hash_entry *
find_thumb_glue (link_info, name, input_bfd)
struct bfd_link_info *link_info;
const char *name;
bfd *input_bfd;
{
char *tmp_name;
struct elf_link_hash_entry *hash;
struct elf32_arm_link_hash_table *hash_table;
hash_table = elf32_arm_hash_table (link_info);
tmp_name = (char *) bfd_malloc ((bfd_size_type) strlen (name)
+ strlen (THUMB2ARM_GLUE_ENTRY_NAME) + 1);
BFD_ASSERT (tmp_name);
sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name);
hash = elf_link_hash_lookup
(&(hash_table)->root, tmp_name, FALSE, FALSE, TRUE);
if (hash == NULL)
(*_bfd_error_handler) (_("%s: unable to find THUMB glue '%s' for `%s'"),
bfd_archive_filename (input_bfd), tmp_name, name);
free (tmp_name);
return hash;
}
static struct elf_link_hash_entry *
find_arm_glue (link_info, name, input_bfd)
struct bfd_link_info *link_info;
const char *name;
bfd *input_bfd;
{
char *tmp_name;
struct elf_link_hash_entry *myh;
struct elf32_arm_link_hash_table *hash_table;
hash_table = elf32_arm_hash_table (link_info);
tmp_name = (char *) bfd_malloc ((bfd_size_type) strlen (name)
+ strlen (ARM2THUMB_GLUE_ENTRY_NAME) + 1);
BFD_ASSERT (tmp_name);
sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name);
myh = elf_link_hash_lookup
(&(hash_table)->root, tmp_name, FALSE, FALSE, TRUE);
if (myh == NULL)
(*_bfd_error_handler) (_("%s: unable to find ARM glue '%s' for `%s'"),
bfd_archive_filename (input_bfd), tmp_name, name);
free (tmp_name);
return myh;
}
#define ARM2THUMB_GLUE_SIZE 12
static const insn32 a2t1_ldr_insn = 0xe59fc000;
static const insn32 a2t2_bx_r12_insn = 0xe12fff1c;
static const insn32 a2t3_func_addr_insn = 0x00000001;
#define THUMB2ARM_GLUE_SIZE 8
static const insn16 t2a1_bx_pc_insn = 0x4778;
static const insn16 t2a2_noop_insn = 0x46c0;
static const insn32 t2a3_b_insn = 0xea000000;
#ifndef ELFARM_NABI_C_INCLUDED
bfd_boolean
bfd_elf32_arm_allocate_interworking_sections (info)
struct bfd_link_info * info;
{
asection * s;
bfd_byte * foo;
struct elf32_arm_link_hash_table * globals;
globals = elf32_arm_hash_table (info);
BFD_ASSERT (globals != NULL);
if (globals->arm_glue_size != 0)
{
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
s = bfd_get_section_by_name (globals->bfd_of_glue_owner,
ARM2THUMB_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
foo = (bfd_byte *) bfd_alloc (globals->bfd_of_glue_owner,
globals->arm_glue_size);
s->_raw_size = s->_cooked_size = globals->arm_glue_size;
s->contents = foo;
}
if (globals->thumb_glue_size != 0)
{
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
s = bfd_get_section_by_name
(globals->bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
foo = (bfd_byte *) bfd_alloc (globals->bfd_of_glue_owner,
globals->thumb_glue_size);
s->_raw_size = s->_cooked_size = globals->thumb_glue_size;
s->contents = foo;
}
return TRUE;
}
static void
record_arm_to_thumb_glue (link_info, h)
struct bfd_link_info * link_info;
struct elf_link_hash_entry * h;
{
const char * name = h->root.root.string;
asection * s;
char * tmp_name;
struct elf_link_hash_entry * myh;
struct bfd_link_hash_entry * bh;
struct elf32_arm_link_hash_table * globals;
bfd_vma val;
globals = elf32_arm_hash_table (link_info);
BFD_ASSERT (globals != NULL);
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
s = bfd_get_section_by_name
(globals->bfd_of_glue_owner, ARM2THUMB_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
tmp_name = (char *) bfd_malloc ((bfd_size_type) strlen (name)
+ strlen (ARM2THUMB_GLUE_ENTRY_NAME) + 1);
BFD_ASSERT (tmp_name);
sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name);
myh = elf_link_hash_lookup
(&(globals)->root, tmp_name, FALSE, FALSE, TRUE);
if (myh != NULL)
{
free (tmp_name);
return;
}
bh = NULL;
val = globals->arm_glue_size + 1;
_bfd_generic_link_add_one_symbol (link_info, globals->bfd_of_glue_owner,
tmp_name, BSF_GLOBAL, s, val,
NULL, TRUE, FALSE, &bh);
free (tmp_name);
globals->arm_glue_size += ARM2THUMB_GLUE_SIZE;
return;
}
static void
record_thumb_to_arm_glue (link_info, h)
struct bfd_link_info *link_info;
struct elf_link_hash_entry *h;
{
const char *name = h->root.root.string;
asection *s;
char *tmp_name;
struct elf_link_hash_entry *myh;
struct bfd_link_hash_entry *bh;
struct elf32_arm_link_hash_table *hash_table;
char bind;
bfd_vma val;
hash_table = elf32_arm_hash_table (link_info);
BFD_ASSERT (hash_table != NULL);
BFD_ASSERT (hash_table->bfd_of_glue_owner != NULL);
s = bfd_get_section_by_name
(hash_table->bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
tmp_name = (char *) bfd_malloc ((bfd_size_type) strlen (name)
+ strlen (THUMB2ARM_GLUE_ENTRY_NAME) + 1);
BFD_ASSERT (tmp_name);
sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name);
myh = elf_link_hash_lookup
(&(hash_table)->root, tmp_name, FALSE, FALSE, TRUE);
if (myh != NULL)
{
free (tmp_name);
return;
}
bh = NULL;
val = hash_table->thumb_glue_size + 1;
_bfd_generic_link_add_one_symbol (link_info, hash_table->bfd_of_glue_owner,
tmp_name, BSF_GLOBAL, s, val,
NULL, TRUE, FALSE, &bh);
myh = (struct elf_link_hash_entry *) bh;
bind = ELF_ST_BIND (myh->type);
myh->type = ELF_ST_INFO (bind, STT_ARM_TFUNC);
free (tmp_name);
#define CHANGE_TO_ARM "__%s_change_to_arm"
#define BACK_FROM_ARM "__%s_back_from_arm"
tmp_name = (char *) bfd_malloc ((bfd_size_type) strlen (name)
+ strlen (CHANGE_TO_ARM) + 1);
BFD_ASSERT (tmp_name);
sprintf (tmp_name, CHANGE_TO_ARM, name);
bh = NULL;
val = hash_table->thumb_glue_size + 4,
_bfd_generic_link_add_one_symbol (link_info, hash_table->bfd_of_glue_owner,
tmp_name, BSF_LOCAL, s, val,
NULL, TRUE, FALSE, &bh);
free (tmp_name);
hash_table->thumb_glue_size += THUMB2ARM_GLUE_SIZE;
return;
}
bfd_boolean
bfd_elf32_arm_add_glue_sections_to_bfd (abfd, info)
bfd *abfd;
struct bfd_link_info *info;
{
flagword flags;
asection *sec;
if (info->relocatable)
return TRUE;
sec = bfd_get_section_by_name (abfd, ARM2THUMB_GLUE_SECTION_NAME);
if (sec == NULL)
{
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_CODE | SEC_READONLY;
sec = bfd_make_section (abfd, ARM2THUMB_GLUE_SECTION_NAME);
if (sec == NULL
|| !bfd_set_section_flags (abfd, sec, flags)
|| !bfd_set_section_alignment (abfd, sec, 2))
return FALSE;
sec->gc_mark = 1;
}
sec = bfd_get_section_by_name (abfd, THUMB2ARM_GLUE_SECTION_NAME);
if (sec == NULL)
{
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_CODE | SEC_READONLY;
sec = bfd_make_section (abfd, THUMB2ARM_GLUE_SECTION_NAME);
if (sec == NULL
|| !bfd_set_section_flags (abfd, sec, flags)
|| !bfd_set_section_alignment (abfd, sec, 2))
return FALSE;
sec->gc_mark = 1;
}
return TRUE;
}
bfd_boolean
bfd_elf32_arm_get_bfd_for_interworking (abfd, info)
bfd *abfd;
struct bfd_link_info *info;
{
struct elf32_arm_link_hash_table *globals;
if (info->relocatable)
return TRUE;
globals = elf32_arm_hash_table (info);
BFD_ASSERT (globals != NULL);
if (globals->bfd_of_glue_owner != NULL)
return TRUE;
globals->bfd_of_glue_owner = abfd;
return TRUE;
}
bfd_boolean
bfd_elf32_arm_process_before_allocation (abfd, link_info, no_pipeline_knowledge)
bfd *abfd;
struct bfd_link_info *link_info;
int no_pipeline_knowledge;
{
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Rela *internal_relocs = NULL;
Elf_Internal_Rela *irel, *irelend;
bfd_byte *contents = NULL;
asection *sec;
struct elf32_arm_link_hash_table *globals;
if (link_info->relocatable)
return TRUE;
globals = elf32_arm_hash_table (link_info);
BFD_ASSERT (globals != NULL);
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
globals->no_pipeline_knowledge = no_pipeline_knowledge;
sec = abfd->sections;
if (sec == NULL)
return TRUE;
for (; sec != NULL; sec = sec->next)
{
if (sec->reloc_count == 0)
continue;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
internal_relocs
= _bfd_elf_link_read_relocs (abfd, sec, (PTR) NULL,
(Elf_Internal_Rela *) NULL, FALSE);
if (internal_relocs == NULL)
goto error_return;
irelend = internal_relocs + sec->reloc_count;
for (irel = internal_relocs; irel < irelend; irel++)
{
long r_type;
unsigned long r_index;
struct elf_link_hash_entry *h;
r_type = ELF32_R_TYPE (irel->r_info);
r_index = ELF32_R_SYM (irel->r_info);
if ( r_type != R_ARM_PC24
&& r_type != R_ARM_THM_PC22)
continue;
if (contents == NULL)
{
if (elf_section_data (sec)->this_hdr.contents != NULL)
contents = elf_section_data (sec)->this_hdr.contents;
else
{
contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
if (contents == NULL)
goto error_return;
if (!bfd_get_section_contents (abfd, sec, contents,
(file_ptr) 0, sec->_raw_size))
goto error_return;
}
}
h = NULL;
if (r_index < symtab_hdr->sh_info)
continue;
r_index -= symtab_hdr->sh_info;
h = (struct elf_link_hash_entry *)
elf_sym_hashes (abfd)[r_index];
if (h == NULL)
continue;
switch (r_type)
{
case R_ARM_PC24:
if (ELF_ST_TYPE(h->type) == STT_ARM_TFUNC)
record_arm_to_thumb_glue (link_info, h);
break;
case R_ARM_THM_PC22:
if (ELF_ST_TYPE (h->type) != STT_ARM_TFUNC)
record_thumb_to_arm_glue (link_info, h);
break;
default:
break;
}
}
if (contents != NULL
&& elf_section_data (sec)->this_hdr.contents != contents)
free (contents);
contents = NULL;
if (internal_relocs != NULL
&& elf_section_data (sec)->relocs != internal_relocs)
free (internal_relocs);
internal_relocs = NULL;
}
return TRUE;
error_return:
if (contents != NULL
&& elf_section_data (sec)->this_hdr.contents != contents)
free (contents);
if (internal_relocs != NULL
&& elf_section_data (sec)->relocs != internal_relocs)
free (internal_relocs);
return FALSE;
}
#endif
#define LOW_HI_ORDER 0xF800F000
#define HI_LOW_ORDER 0xF000F800
static insn32
insert_thumb_branch (br_insn, rel_off)
insn32 br_insn;
int rel_off;
{
unsigned int low_bits;
unsigned int high_bits;
BFD_ASSERT ((rel_off & 1) != 1);
rel_off >>= 1;
low_bits = rel_off & 0x000007FF;
high_bits = (rel_off >> 11) & 0x000007FF;
if ((br_insn & LOW_HI_ORDER) == LOW_HI_ORDER)
br_insn = LOW_HI_ORDER | (low_bits << 16) | high_bits;
else if ((br_insn & HI_LOW_ORDER) == HI_LOW_ORDER)
br_insn = HI_LOW_ORDER | (high_bits << 16) | low_bits;
else
abort ();
return br_insn;
}
static int
elf32_thumb_to_arm_stub (info, name, input_bfd, output_bfd, input_section,
hit_data, sym_sec, offset, addend, val)
struct bfd_link_info * info;
const char * name;
bfd * input_bfd;
bfd * output_bfd;
asection * input_section;
bfd_byte * hit_data;
asection * sym_sec;
bfd_vma offset;
bfd_signed_vma addend;
bfd_vma val;
{
asection * s = 0;
bfd_vma my_offset;
unsigned long int tmp;
long int ret_offset;
struct elf_link_hash_entry * myh;
struct elf32_arm_link_hash_table * globals;
myh = find_thumb_glue (info, name, input_bfd);
if (myh == NULL)
return FALSE;
globals = elf32_arm_hash_table (info);
BFD_ASSERT (globals != NULL);
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
my_offset = myh->root.u.def.value;
s = bfd_get_section_by_name (globals->bfd_of_glue_owner,
THUMB2ARM_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
BFD_ASSERT (s->contents != NULL);
BFD_ASSERT (s->output_section != NULL);
if ((my_offset & 0x01) == 0x01)
{
if (sym_sec != NULL
&& sym_sec->owner != NULL
&& !INTERWORK_FLAG (sym_sec->owner))
{
(*_bfd_error_handler)
(_("%s(%s): warning: interworking not enabled."),
bfd_archive_filename (sym_sec->owner), name);
(*_bfd_error_handler)
(_(" first occurrence: %s: thumb call to arm"),
bfd_archive_filename (input_bfd));
return FALSE;
}
--my_offset;
myh->root.u.def.value = my_offset;
bfd_put_16 (output_bfd, (bfd_vma) t2a1_bx_pc_insn,
s->contents + my_offset);
bfd_put_16 (output_bfd, (bfd_vma) t2a2_noop_insn,
s->contents + my_offset + 2);
ret_offset =
((bfd_signed_vma) val)
- ((bfd_signed_vma)
(s->output_offset
+ my_offset
+ s->output_section->vma)
+ 4
+ 8);
bfd_put_32 (output_bfd,
(bfd_vma) t2a3_b_insn | ((ret_offset >> 2) & 0x00FFFFFF),
s->contents + my_offset + 4);
}
BFD_ASSERT (my_offset <= globals->thumb_glue_size);
ret_offset =
(s->output_section->vma + s->output_offset + my_offset)
- (input_section->output_section->vma + input_section->output_offset + offset)
- addend
- 8;
tmp = bfd_get_32 (input_bfd, hit_data
- input_section->vma);
bfd_put_32 (output_bfd,
(bfd_vma) insert_thumb_branch (tmp, ret_offset),
hit_data - input_section->vma);
return TRUE;
}
static int
elf32_arm_to_thumb_stub (info, name, input_bfd, output_bfd, input_section,
hit_data, sym_sec, offset, addend, val)
struct bfd_link_info * info;
const char * name;
bfd * input_bfd;
bfd * output_bfd;
asection * input_section;
bfd_byte * hit_data;
asection * sym_sec;
bfd_vma offset;
bfd_signed_vma addend;
bfd_vma val;
{
unsigned long int tmp;
bfd_vma my_offset;
asection * s;
long int ret_offset;
struct elf_link_hash_entry * myh;
struct elf32_arm_link_hash_table * globals;
myh = find_arm_glue (info, name, input_bfd);
if (myh == NULL)
return FALSE;
globals = elf32_arm_hash_table (info);
BFD_ASSERT (globals != NULL);
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
my_offset = myh->root.u.def.value;
s = bfd_get_section_by_name (globals->bfd_of_glue_owner,
ARM2THUMB_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
BFD_ASSERT (s->contents != NULL);
BFD_ASSERT (s->output_section != NULL);
if ((my_offset & 0x01) == 0x01)
{
if (sym_sec != NULL
&& sym_sec->owner != NULL
&& !INTERWORK_FLAG (sym_sec->owner))
{
(*_bfd_error_handler)
(_("%s(%s): warning: interworking not enabled."),
bfd_archive_filename (sym_sec->owner), name);
(*_bfd_error_handler)
(_(" first occurrence: %s: arm call to thumb"),
bfd_archive_filename (input_bfd));
}
--my_offset;
myh->root.u.def.value = my_offset;
bfd_put_32 (output_bfd, (bfd_vma) a2t1_ldr_insn,
s->contents + my_offset);
bfd_put_32 (output_bfd, (bfd_vma) a2t2_bx_r12_insn,
s->contents + my_offset + 4);
bfd_put_32 (output_bfd, val | a2t3_func_addr_insn,
s->contents + my_offset + 8);
}
BFD_ASSERT (my_offset <= globals->arm_glue_size);
tmp = bfd_get_32 (input_bfd, hit_data);
tmp = tmp & 0xFF000000;
ret_offset = (s->output_offset
+ my_offset
+ s->output_section->vma
- (input_section->output_offset
+ input_section->output_section->vma
+ offset + addend)
- 8);
tmp = tmp | ((ret_offset >> 2) & 0x00FFFFFF);
bfd_put_32 (output_bfd, (bfd_vma) tmp, hit_data - input_section->vma);
return TRUE;
}
#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \
((DYN) \
&& ((SHARED) \
|| ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
&& ((H)->dynindx != -1 \
|| ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
static bfd_reloc_status_type
elf32_arm_final_link_relocate (howto, input_bfd, output_bfd,
input_section, contents, rel, value,
info, sym_sec, sym_name, sym_flags, h)
reloc_howto_type * howto;
bfd * input_bfd;
bfd * output_bfd;
asection * input_section;
bfd_byte * contents;
Elf_Internal_Rela * rel;
bfd_vma value;
struct bfd_link_info * info;
asection * sym_sec;
const char * sym_name;
int sym_flags;
struct elf_link_hash_entry * h;
{
unsigned long r_type = howto->type;
unsigned long r_symndx;
bfd_byte * hit_data = contents + rel->r_offset;
bfd * dynobj = NULL;
Elf_Internal_Shdr * symtab_hdr;
struct elf_link_hash_entry ** sym_hashes;
bfd_vma * local_got_offsets;
asection * sgot = NULL;
asection * splt = NULL;
asection * sreloc = NULL;
bfd_vma addend;
bfd_signed_vma signed_addend;
struct elf32_arm_link_hash_table * globals;
if (bfd_get_start_address (output_bfd) != 0)
elf_elfheader (output_bfd)->e_flags |= EF_ARM_HASENTRY;
globals = elf32_arm_hash_table (info);
dynobj = elf_hash_table (info)->dynobj;
if (dynobj)
{
sgot = bfd_get_section_by_name (dynobj, ".got");
splt = bfd_get_section_by_name (dynobj, ".plt");
}
symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
local_got_offsets = elf_local_got_offsets (input_bfd);
r_symndx = ELF32_R_SYM (rel->r_info);
#if USE_REL
addend = bfd_get_32 (input_bfd, hit_data) & howto->src_mask;
if (addend & ((howto->src_mask + 1) >> 1))
{
signed_addend = -1;
signed_addend &= ~ howto->src_mask;
signed_addend |= addend;
}
else
signed_addend = addend;
#else
addend = signed_addend = rel->r_addend;
#endif
switch (r_type)
{
case R_ARM_NONE:
return bfd_reloc_ok;
case R_ARM_PC24:
case R_ARM_ABS32:
case R_ARM_REL32:
#ifndef OLD_ARM_ABI
case R_ARM_XPC25:
#endif
case R_ARM_PLT32:
if (r_symndx == 0)
return bfd_reloc_ok;
if ((r_type != R_ARM_ABS32 && r_type != R_ARM_REL32)
&& h != NULL
&& splt != NULL
&& h->plt.offset != (bfd_vma) -1)
{
BFD_ASSERT (!SYMBOL_CALLS_LOCAL (info, h));
value = (splt->output_section->vma
+ splt->output_offset
+ h->plt.offset);
return _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset, value,
(bfd_vma) 0);
}
if (info->shared
&& (input_section->flags & SEC_ALLOC)
&& (h == NULL
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|| h->root.type != bfd_link_hash_undefweak)
&& r_type != R_ARM_PC24
&& r_type != R_ARM_PLT32)
{
Elf_Internal_Rela outrel;
bfd_byte *loc;
bfd_boolean skip, relocate;
if (sreloc == NULL)
{
const char * name;
name = (bfd_elf_string_from_elf_section
(input_bfd,
elf_elfheader (input_bfd)->e_shstrndx,
elf_section_data (input_section)->rel_hdr.sh_name));
if (name == NULL)
return bfd_reloc_notsupported;
BFD_ASSERT (strncmp (name, ".rel", 4) == 0
&& strcmp (bfd_get_section_name (input_bfd,
input_section),
name + 4) == 0);
sreloc = bfd_get_section_by_name (dynobj, name);
BFD_ASSERT (sreloc != NULL);
}
skip = FALSE;
relocate = FALSE;
outrel.r_offset =
_bfd_elf_section_offset (output_bfd, info, input_section,
rel->r_offset);
if (outrel.r_offset == (bfd_vma) -1)
skip = TRUE;
else if (outrel.r_offset == (bfd_vma) -2)
skip = TRUE, relocate = TRUE;
outrel.r_offset += (input_section->output_section->vma
+ input_section->output_offset);
if (skip)
memset (&outrel, 0, sizeof outrel);
else if (h != NULL
&& h->dynindx != -1
&& (!info->shared
|| !info->symbolic
|| (h->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR) == 0))
outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
else
{
relocate = TRUE;
outrel.r_info = ELF32_R_INFO (0, R_ARM_RELATIVE);
}
loc = sreloc->contents;
loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rel);
bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc);
if (! relocate)
return bfd_reloc_ok;
return _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset, value,
(bfd_vma) 0);
}
else switch (r_type)
{
#ifndef OLD_ARM_ABI
case R_ARM_XPC25:
#endif
case R_ARM_PC24:
case R_ARM_PLT32:
#ifndef OLD_ARM_ABI
if (r_type == R_ARM_XPC25)
{
if (sym_flags != STT_ARM_TFUNC)
(*_bfd_error_handler) (_("\
%s: Warning: Arm BLX instruction targets Arm function '%s'."),
bfd_archive_filename (input_bfd),
h ? h->root.root.string : "(local)");
}
else
#endif
{
if (sym_flags == STT_ARM_TFUNC)
{
elf32_arm_to_thumb_stub (info, sym_name, input_bfd, output_bfd,
input_section, hit_data, sym_sec, rel->r_offset,
signed_addend, value);
return bfd_reloc_ok;
}
}
if ( strcmp (bfd_get_target (input_bfd), "elf32-littlearm-oabi") == 0
|| strcmp (bfd_get_target (input_bfd), "elf32-bigarm-oabi") == 0)
{
value -= (input_section->output_section->vma
+ input_section->output_offset);
value -= rel->r_offset;
value += addend;
if (! globals->no_pipeline_knowledge)
value -= 8;
}
else
{
value -= (input_section->output_section->vma
+ input_section->output_offset);
value -= rel->r_offset;
value += (signed_addend << howto->size);
if (! globals->no_pipeline_knowledge)
{
Elf_Internal_Ehdr * i_ehdrp;
i_ehdrp = elf_elfheader (input_bfd);
if (i_ehdrp->e_ident[EI_OSABI] == 0)
value -= 8;
}
}
signed_addend = value;
signed_addend >>= howto->rightshift;
if (! h || h->root.type != bfd_link_hash_undefweak)
{
if ( signed_addend > ((bfd_signed_vma) (howto->dst_mask >> 1))
|| signed_addend < - ((bfd_signed_vma) ((howto->dst_mask + 1) >> 1)))
return bfd_reloc_overflow;
}
#ifndef OLD_ARM_ABI
if (r_type == R_ARM_XPC25 && ((value & 2) == 2))
value = (signed_addend & howto->dst_mask)
| (bfd_get_32 (input_bfd, hit_data) & (~ howto->dst_mask))
| (1 << 24);
else
#endif
value = (signed_addend & howto->dst_mask)
| (bfd_get_32 (input_bfd, hit_data) & (~ howto->dst_mask));
break;
case R_ARM_ABS32:
value += addend;
if (sym_flags == STT_ARM_TFUNC)
value |= 1;
break;
case R_ARM_REL32:
value -= (input_section->output_section->vma
+ input_section->output_offset + rel->r_offset);
value += addend;
break;
}
bfd_put_32 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_ARM_ABS8:
value += addend;
if ((long) value > 0x7f || (long) value < -0x80)
return bfd_reloc_overflow;
bfd_put_8 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_ARM_ABS16:
value += addend;
if ((long) value > 0x7fff || (long) value < -0x8000)
return bfd_reloc_overflow;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_ARM_ABS12:
value += addend;
if ((long) value > 0x7ff || (long) value < -0x800)
return bfd_reloc_overflow;
value |= (bfd_get_32 (input_bfd, hit_data) & 0xfffff000);
bfd_put_32 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_ARM_THM_ABS5:
#if USE_REL
addend = bfd_get_16 (input_bfd, hit_data) & howto->src_mask;
addend >>= howto->rightshift;
#endif
value += addend;
if ((long) value > 0x1f || (long) value < -0x10)
return bfd_reloc_overflow;
value |= bfd_get_16 (input_bfd, hit_data) & 0xf83f;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
#ifndef OLD_ARM_ABI
case R_ARM_THM_XPC22:
#endif
case R_ARM_THM_PC22:
{
bfd_vma relocation;
bfd_boolean overflow = FALSE;
bfd_vma upper_insn = bfd_get_16 (input_bfd, hit_data);
bfd_vma lower_insn = bfd_get_16 (input_bfd, hit_data + 2);
bfd_signed_vma reloc_signed_max = ((1 << (howto->bitsize - 1)) - 1) >> howto->rightshift;
bfd_signed_vma reloc_signed_min = ~ reloc_signed_max;
bfd_vma check;
bfd_signed_vma signed_check;
#if USE_REL
{
bfd_vma upper = upper_insn & 0x7ff;
bfd_vma lower = lower_insn & 0x7ff;
upper = (upper ^ 0x400) - 0x400;
addend = (upper << 12) | (lower << 1);
signed_addend = addend;
}
#endif
#ifndef OLD_ARM_ABI
if (r_type == R_ARM_THM_XPC22)
{
if (sym_flags == STT_ARM_TFUNC)
(*_bfd_error_handler) (_("\
%s: Warning: Thumb BLX instruction targets thumb function '%s'."),
bfd_archive_filename (input_bfd),
h ? h->root.root.string : "(local)");
}
else
#endif
{
if (sym_flags != STT_ARM_TFUNC && sym_flags != STT_SECTION)
{
if (elf32_thumb_to_arm_stub
(info, sym_name, input_bfd, output_bfd, input_section,
hit_data, sym_sec, rel->r_offset, signed_addend, value))
return bfd_reloc_ok;
else
return bfd_reloc_dangerous;
}
}
relocation = value + signed_addend;
relocation -= (input_section->output_section->vma
+ input_section->output_offset
+ rel->r_offset);
if (! globals->no_pipeline_knowledge)
{
Elf_Internal_Ehdr * i_ehdrp;
i_ehdrp = elf_elfheader (input_bfd);
if ( strcmp (bfd_get_target (input_bfd), "elf32-littlearm-oabi") == 0
|| strcmp (bfd_get_target (input_bfd), "elf32-bigarm-oabi") == 0
|| i_ehdrp->e_ident[EI_OSABI] == 0)
relocation += 4;
}
check = relocation >> howto->rightshift;
if ((bfd_signed_vma) relocation >= 0)
signed_check = check;
else
signed_check = check | ~((bfd_vma) -1 >> howto->rightshift);
if (signed_check > reloc_signed_max || signed_check < reloc_signed_min)
overflow = TRUE;
#ifndef OLD_ARM_ABI
if (r_type == R_ARM_THM_XPC22
&& ((lower_insn & 0x1800) == 0x0800))
relocation = (relocation + 2) & ~ 3;
#endif
upper_insn = (upper_insn & ~(bfd_vma) 0x7ff) | ((relocation >> 12) & 0x7ff);
lower_insn = (lower_insn & ~(bfd_vma) 0x7ff) | ((relocation >> 1) & 0x7ff);
bfd_put_16 (input_bfd, upper_insn, hit_data);
bfd_put_16 (input_bfd, lower_insn, hit_data + 2);
return (overflow ? bfd_reloc_overflow : bfd_reloc_ok);
}
break;
case R_ARM_THM_PC11:
{
bfd_signed_vma relocation;
bfd_signed_vma reloc_signed_max = (1 << (howto->bitsize - 1)) - 1;
bfd_signed_vma reloc_signed_min = ~ reloc_signed_max;
bfd_signed_vma signed_check;
#if USE_REL
addend = bfd_get_16 (input_bfd, hit_data) & howto->src_mask;
if (addend & ((howto->src_mask + 1) >> 1))
{
signed_addend = -1;
signed_addend &= ~ howto->src_mask;
signed_addend |= addend;
}
else
signed_addend = addend;
signed_addend <<= howto->rightshift;
#endif
relocation = value + signed_addend;
relocation -= (input_section->output_section->vma
+ input_section->output_offset
+ rel->r_offset);
relocation >>= howto->rightshift;
signed_check = relocation;
relocation &= howto->dst_mask;
relocation |= (bfd_get_16 (input_bfd, hit_data) & (~ howto->dst_mask));
bfd_put_16 (input_bfd, relocation, hit_data);
if (signed_check > reloc_signed_max || signed_check < reloc_signed_min)
return bfd_reloc_overflow;
return bfd_reloc_ok;
}
case R_ARM_GNU_VTINHERIT:
case R_ARM_GNU_VTENTRY:
return bfd_reloc_ok;
case R_ARM_COPY:
return bfd_reloc_notsupported;
case R_ARM_GLOB_DAT:
return bfd_reloc_notsupported;
case R_ARM_JUMP_SLOT:
return bfd_reloc_notsupported;
case R_ARM_RELATIVE:
return bfd_reloc_notsupported;
case R_ARM_GOTOFF:
BFD_ASSERT (sgot != NULL);
if (sgot == NULL)
return bfd_reloc_notsupported;
if (sym_flags == STT_ARM_TFUNC)
value += 1;
value -= sgot->output_section->vma;
return _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset, value,
(bfd_vma) 0);
case R_ARM_GOTPC:
BFD_ASSERT (sgot != NULL);
if (sgot == NULL)
return bfd_reloc_notsupported;
value = sgot->output_section->vma;
return _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset, value,
(bfd_vma) 0);
case R_ARM_GOT32:
if (sgot == NULL)
return bfd_reloc_notsupported;
if (h != NULL)
{
bfd_vma off;
bfd_boolean dyn;
off = h->got.offset;
BFD_ASSERT (off != (bfd_vma) -1);
dyn = globals->root.dynamic_sections_created;
if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
|| (info->shared
&& SYMBOL_REFERENCES_LOCAL (info, h))
|| (ELF_ST_VISIBILITY (h->other)
&& h->root.type == bfd_link_hash_undefweak))
{
if ((off & 1) != 0)
off &= ~1;
else
{
if (sym_flags == STT_ARM_TFUNC)
value |= 1;
bfd_put_32 (output_bfd, value, sgot->contents + off);
h->got.offset |= 1;
}
}
value = sgot->output_offset + off;
}
else
{
bfd_vma off;
BFD_ASSERT (local_got_offsets != NULL &&
local_got_offsets[r_symndx] != (bfd_vma) -1);
off = local_got_offsets[r_symndx];
if ((off & 1) != 0)
off &= ~1;
else
{
bfd_put_32 (output_bfd, value, sgot->contents + off);
if (info->shared)
{
asection * srelgot;
Elf_Internal_Rela outrel;
bfd_byte *loc;
srelgot = bfd_get_section_by_name (dynobj, ".rel.got");
BFD_ASSERT (srelgot != NULL);
outrel.r_offset = (sgot->output_section->vma
+ sgot->output_offset
+ off);
outrel.r_info = ELF32_R_INFO (0, R_ARM_RELATIVE);
loc = srelgot->contents;
loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rel);
bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc);
}
local_got_offsets[r_symndx] |= 1;
}
value = sgot->output_offset + off;
}
return _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset, value,
(bfd_vma) 0);
case R_ARM_SBREL32:
return bfd_reloc_notsupported;
case R_ARM_AMP_VCALL9:
return bfd_reloc_notsupported;
case R_ARM_RSBREL32:
return bfd_reloc_notsupported;
case R_ARM_THM_RPC22:
return bfd_reloc_notsupported;
case R_ARM_RREL32:
return bfd_reloc_notsupported;
case R_ARM_RABS32:
return bfd_reloc_notsupported;
case R_ARM_RPC24:
return bfd_reloc_notsupported;
case R_ARM_RBASE:
return bfd_reloc_notsupported;
default:
return bfd_reloc_notsupported;
}
}
#if USE_REL
static void
arm_add_to_rel (abfd, address, howto, increment)
bfd * abfd;
bfd_byte * address;
reloc_howto_type * howto;
bfd_signed_vma increment;
{
bfd_signed_vma addend;
if (howto->type == R_ARM_THM_PC22)
{
int upper_insn, lower_insn;
int upper, lower;
upper_insn = bfd_get_16 (abfd, address);
lower_insn = bfd_get_16 (abfd, address + 2);
upper = upper_insn & 0x7ff;
lower = lower_insn & 0x7ff;
addend = (upper << 12) | (lower << 1);
addend += increment;
addend >>= 1;
upper_insn = (upper_insn & 0xf800) | ((addend >> 11) & 0x7ff);
lower_insn = (lower_insn & 0xf800) | (addend & 0x7ff);
bfd_put_16 (abfd, (bfd_vma) upper_insn, address);
bfd_put_16 (abfd, (bfd_vma) lower_insn, address + 2);
}
else
{
bfd_vma contents;
contents = bfd_get_32 (abfd, address);
addend = contents & howto->src_mask;
if (addend & ((howto->src_mask + 1) >> 1))
{
bfd_signed_vma mask;
mask = -1;
mask &= ~ howto->src_mask;
addend |= mask;
}
switch (howto->type)
{
default:
addend += increment;
break;
case R_ARM_PC24:
addend <<= howto->size;
addend += increment;
addend >>= howto->rightshift;
break;
}
contents = (contents & ~ howto->dst_mask) | (addend & howto->dst_mask);
bfd_put_32 (abfd, contents, address);
}
}
#endif
static bfd_boolean
elf32_arm_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_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
Elf_Internal_Rela *rel;
Elf_Internal_Rela *relend;
const char *name;
#if !USE_REL
if (info->relocatable)
return TRUE;
#endif
symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
rel = relocs;
relend = relocs + input_section->reloc_count;
for (; rel < relend; rel++)
{
int r_type;
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;
arelent bfd_reloc;
r_symndx = ELF32_R_SYM (rel->r_info);
r_type = ELF32_R_TYPE (rel->r_info);
if ( r_type == R_ARM_GNU_VTENTRY
|| r_type == R_ARM_GNU_VTINHERIT)
continue;
elf32_arm_info_to_howto (input_bfd, & bfd_reloc, rel);
howto = bfd_reloc.howto;
#if USE_REL
if (info->relocatable)
{
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];
arm_add_to_rel (input_bfd, contents + rel->r_offset,
howto,
(bfd_signed_vma) (sec->output_offset
+ sym->st_value));
}
}
continue;
}
#endif
h = NULL;
sym = NULL;
sec = NULL;
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
sec = local_sections[r_symndx];
#if USE_REL
relocation = (sec->output_section->vma
+ sec->output_offset
+ sym->st_value);
if ((sec->flags & SEC_MERGE)
&& ELF_ST_TYPE (sym->st_info) == STT_SECTION)
{
asection *msec;
bfd_vma addend, value;
if (howto->rightshift)
{
(*_bfd_error_handler)
(_("%s(%s+0x%lx): %s relocation against SEC_MERGE section"),
bfd_archive_filename (input_bfd),
bfd_get_section_name (input_bfd, input_section),
(long) rel->r_offset, howto->name);
return FALSE;
}
value = bfd_get_32 (input_bfd, contents + rel->r_offset);
addend = value & howto->src_mask;
if (addend & ((howto->src_mask + 1) >> 1))
{
bfd_signed_vma mask;
mask = -1;
mask &= ~ howto->src_mask;
addend |= mask;
}
msec = sec;
addend =
_bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
- relocation;
addend += msec->output_section->vma + msec->output_offset;
value = (value & ~ howto->dst_mask) | (addend & howto->dst_mask);
bfd_put_32 (input_bfd, value, contents + rel->r_offset);
}
#else
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
#endif
}
else
{
bfd_boolean warned;
bfd_boolean unresolved_reloc;
RELOC_FOR_GLOBAL_SYMBOL (h, sym_hashes, r_symndx,
symtab_hdr, relocation,
sec, unresolved_reloc, info,
warned);
if (unresolved_reloc || relocation != 0)
{
switch (r_type)
{
case R_ARM_PC24:
case R_ARM_ABS32:
case R_ARM_THM_PC22:
if (info->shared
&& (
(!info->symbolic && h->dynindx != -1)
|| (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
)
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
&& ((input_section->flags & SEC_ALLOC) != 0
|| ((input_section->flags & SEC_DEBUGGING) != 0
&& (h->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC) != 0))
)
relocation = 0;
break;
case R_ARM_GOTPC:
relocation = 0;
break;
case R_ARM_GOT32:
if ((WILL_CALL_FINISH_DYNAMIC_SYMBOL
(elf_hash_table (info)->dynamic_sections_created,
info->shared, h))
&& (!info->shared
|| (!info->symbolic && h->dynindx != -1)
|| (h->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR) == 0))
relocation = 0;
break;
case R_ARM_PLT32:
if (h->plt.offset != (bfd_vma)-1)
relocation = 0;
break;
default:
if (unresolved_reloc)
_bfd_error_handler
(_("%s: warning: unresolvable relocation %d against symbol `%s' from %s section"),
bfd_archive_filename (input_bfd),
r_type,
h->root.root.string,
bfd_get_section_name (input_bfd, input_section));
break;
}
}
}
if (h != NULL)
name = h->root.root.string;
else
{
name = (bfd_elf_string_from_elf_section
(input_bfd, symtab_hdr->sh_link, sym->st_name));
if (name == NULL || *name == '\0')
name = bfd_section_name (input_bfd, sec);
}
r = elf32_arm_final_link_relocate (howto, input_bfd, output_bfd,
input_section, contents, rel,
relocation, info, sec, name,
(h ? ELF_ST_TYPE (h->type) :
ELF_ST_TYPE (sym->st_info)), h);
if (r != bfd_reloc_ok)
{
const char * msg = (const char *) 0;
switch (r)
{
case bfd_reloc_overflow:
if ((! h ||
h->root.type != bfd_link_hash_undefined)
&& (!((*info->callbacks->reloc_overflow)
(info, name, howto->name, (bfd_vma) 0,
input_bfd, input_section, rel->r_offset))))
return FALSE;
break;
case bfd_reloc_undefined:
if (!((*info->callbacks->undefined_symbol)
(info, name, input_bfd, input_section,
rel->r_offset, TRUE)))
return FALSE;
break;
case bfd_reloc_outofrange:
msg = _("internal error: out of range error");
goto common_error;
case bfd_reloc_notsupported:
msg = _("internal error: unsupported relocation error");
goto common_error;
case bfd_reloc_dangerous:
msg = _("internal error: dangerous error");
goto common_error;
default:
msg = _("internal error: unknown error");
common_error:
if (!((*info->callbacks->warning)
(info, msg, name, input_bfd, input_section,
rel->r_offset)))
return FALSE;
break;
}
}
}
return TRUE;
}
static bfd_boolean
elf32_arm_object_p (abfd)
bfd *abfd;
{
unsigned int mach;
mach = bfd_arm_get_mach_from_notes (abfd, ARM_NOTE_SECTION);
if (mach != bfd_mach_arm_unknown)
bfd_default_set_arch_mach (abfd, bfd_arch_arm, mach);
else if (elf_elfheader (abfd)->e_flags & EF_ARM_MAVERICK_FLOAT)
bfd_default_set_arch_mach (abfd, bfd_arch_arm, bfd_mach_arm_ep9312);
else
bfd_default_set_arch_mach (abfd, bfd_arch_arm, mach);
return TRUE;
}
static bfd_boolean
elf32_arm_set_private_flags (abfd, flags)
bfd *abfd;
flagword flags;
{
if (elf_flags_init (abfd)
&& elf_elfheader (abfd)->e_flags != flags)
{
if (EF_ARM_EABI_VERSION (flags) == EF_ARM_EABI_UNKNOWN)
{
if (flags & EF_ARM_INTERWORK)
(*_bfd_error_handler) (_("\
Warning: Not setting interworking flag of %s since it has already been specified as non-interworking"),
bfd_archive_filename (abfd));
else
_bfd_error_handler (_("\
Warning: Clearing the interworking flag of %s due to outside request"),
bfd_archive_filename (abfd));
}
}
else
{
elf_elfheader (abfd)->e_flags = flags;
elf_flags_init (abfd) = TRUE;
}
return TRUE;
}
static bfd_boolean
elf32_arm_copy_private_bfd_data (ibfd, obfd)
bfd *ibfd;
bfd *obfd;
{
flagword in_flags;
flagword out_flags;
if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return TRUE;
in_flags = elf_elfheader (ibfd)->e_flags;
out_flags = elf_elfheader (obfd)->e_flags;
if (elf_flags_init (obfd)
&& EF_ARM_EABI_VERSION (out_flags) == EF_ARM_EABI_UNKNOWN
&& in_flags != out_flags)
{
if ((in_flags & EF_ARM_APCS_26) != (out_flags & EF_ARM_APCS_26))
return FALSE;
if ((in_flags & EF_ARM_APCS_FLOAT) != (out_flags & EF_ARM_APCS_FLOAT))
return FALSE;
if ((in_flags & EF_ARM_INTERWORK) != (out_flags & EF_ARM_INTERWORK))
{
if (out_flags & EF_ARM_INTERWORK)
_bfd_error_handler (_("\
Warning: Clearing the interworking flag of %s because non-interworking code in %s has been linked with it"),
bfd_get_filename (obfd),
bfd_archive_filename (ibfd));
in_flags &= ~EF_ARM_INTERWORK;
}
if ((in_flags & EF_ARM_PIC) != (out_flags & EF_ARM_PIC))
in_flags &= ~EF_ARM_PIC;
}
elf_elfheader (obfd)->e_flags = in_flags;
elf_flags_init (obfd) = TRUE;
return TRUE;
}
static bfd_boolean
elf32_arm_merge_private_bfd_data (ibfd, obfd)
bfd * ibfd;
bfd * obfd;
{
flagword out_flags;
flagword in_flags;
bfd_boolean flags_compatible = TRUE;
asection *sec;
if (! _bfd_generic_verify_endian_match (ibfd, obfd))
return FALSE;
if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return TRUE;
in_flags = elf_elfheader (ibfd)->e_flags;
out_flags = elf_elfheader (obfd)->e_flags;
if (!elf_flags_init (obfd))
{
if (bfd_get_arch_info (ibfd)->the_default
&& elf_elfheader (ibfd)->e_flags == 0)
return TRUE;
elf_flags_init (obfd) = TRUE;
elf_elfheader (obfd)->e_flags = in_flags;
if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
&& bfd_get_arch_info (obfd)->the_default)
return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
return TRUE;
}
if (! bfd_arm_merge_machines (ibfd, obfd))
return FALSE;
if (in_flags == out_flags)
return TRUE;
if (!(ibfd->flags & DYNAMIC))
{
bfd_boolean null_input_bfd = TRUE;
for (sec = ibfd->sections; sec != NULL; sec = sec->next)
{
if (strcmp (sec->name, ".glue_7")
&& strcmp (sec->name, ".glue_7t"))
{
null_input_bfd = FALSE;
break;
}
}
if (null_input_bfd)
return TRUE;
}
if (EF_ARM_EABI_VERSION (in_flags) != EF_ARM_EABI_VERSION (out_flags))
{
_bfd_error_handler (_("\
ERROR: %s is compiled for EABI version %d, whereas %s is compiled for version %d"),
bfd_archive_filename (ibfd),
(in_flags & EF_ARM_EABIMASK) >> 24,
bfd_get_filename (obfd),
(out_flags & EF_ARM_EABIMASK) >> 24);
return FALSE;
}
if (EF_ARM_EABI_VERSION (in_flags) == EF_ARM_EABI_UNKNOWN)
{
if ((in_flags & EF_ARM_APCS_26) != (out_flags & EF_ARM_APCS_26))
{
_bfd_error_handler (_("\
ERROR: %s is compiled for APCS-%d, whereas target %s uses APCS-%d"),
bfd_archive_filename (ibfd),
in_flags & EF_ARM_APCS_26 ? 26 : 32,
bfd_get_filename (obfd),
out_flags & EF_ARM_APCS_26 ? 26 : 32);
flags_compatible = FALSE;
}
if ((in_flags & EF_ARM_APCS_FLOAT) != (out_flags & EF_ARM_APCS_FLOAT))
{
if (in_flags & EF_ARM_APCS_FLOAT)
_bfd_error_handler (_("\
ERROR: %s passes floats in float registers, whereas %s passes them in integer registers"),
bfd_archive_filename (ibfd),
bfd_get_filename (obfd));
else
_bfd_error_handler (_("\
ERROR: %s passes floats in integer registers, whereas %s passes them in float registers"),
bfd_archive_filename (ibfd),
bfd_get_filename (obfd));
flags_compatible = FALSE;
}
if ((in_flags & EF_ARM_VFP_FLOAT) != (out_flags & EF_ARM_VFP_FLOAT))
{
if (in_flags & EF_ARM_VFP_FLOAT)
_bfd_error_handler (_("\
ERROR: %s uses VFP instructions, whereas %s does not"),
bfd_archive_filename (ibfd),
bfd_get_filename (obfd));
else
_bfd_error_handler (_("\
ERROR: %s uses FPA instructions, whereas %s does not"),
bfd_archive_filename (ibfd),
bfd_get_filename (obfd));
flags_compatible = FALSE;
}
if ((in_flags & EF_ARM_MAVERICK_FLOAT) != (out_flags & EF_ARM_MAVERICK_FLOAT))
{
if (in_flags & EF_ARM_MAVERICK_FLOAT)
_bfd_error_handler (_("\
ERROR: %s uses Maverick instructions, whereas %s does not"),
bfd_archive_filename (ibfd),
bfd_get_filename (obfd));
else
_bfd_error_handler (_("\
ERROR: %s does not use Maverick instructions, whereas %s does"),
bfd_archive_filename (ibfd),
bfd_get_filename (obfd));
flags_compatible = FALSE;
}
#ifdef EF_ARM_SOFT_FLOAT
if ((in_flags & EF_ARM_SOFT_FLOAT) != (out_flags & EF_ARM_SOFT_FLOAT))
{
if ((in_flags & EF_ARM_APCS_FLOAT) != 0
|| (in_flags & EF_ARM_VFP_FLOAT) == 0)
{
if (in_flags & EF_ARM_SOFT_FLOAT)
_bfd_error_handler (_("\
ERROR: %s uses software FP, whereas %s uses hardware FP"),
bfd_archive_filename (ibfd),
bfd_get_filename (obfd));
else
_bfd_error_handler (_("\
ERROR: %s uses hardware FP, whereas %s uses software FP"),
bfd_archive_filename (ibfd),
bfd_get_filename (obfd));
flags_compatible = FALSE;
}
}
#endif
if ((in_flags & EF_ARM_INTERWORK) != (out_flags & EF_ARM_INTERWORK))
{
if (in_flags & EF_ARM_INTERWORK)
{
_bfd_error_handler (_("\
Warning: %s supports interworking, whereas %s does not"),
bfd_archive_filename (ibfd),
bfd_get_filename (obfd));
}
else
{
_bfd_error_handler (_("\
Warning: %s does not support interworking, whereas %s does"),
bfd_archive_filename (ibfd),
bfd_get_filename (obfd));
}
}
}
return flags_compatible;
}
static bfd_boolean
elf32_arm_print_private_bfd_data (abfd, ptr)
bfd *abfd;
PTR ptr;
{
FILE * file = (FILE *) ptr;
unsigned long flags;
BFD_ASSERT (abfd != NULL && ptr != NULL);
_bfd_elf_print_private_bfd_data (abfd, ptr);
flags = elf_elfheader (abfd)->e_flags;
fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
switch (EF_ARM_EABI_VERSION (flags))
{
case EF_ARM_EABI_UNKNOWN:
if (flags & EF_ARM_INTERWORK)
fprintf (file, _(" [interworking enabled]"));
if (flags & EF_ARM_APCS_26)
fprintf (file, " [APCS-26]");
else
fprintf (file, " [APCS-32]");
if (flags & EF_ARM_VFP_FLOAT)
fprintf (file, _(" [VFP float format]"));
else if (flags & EF_ARM_MAVERICK_FLOAT)
fprintf (file, _(" [Maverick float format]"));
else
fprintf (file, _(" [FPA float format]"));
if (flags & EF_ARM_APCS_FLOAT)
fprintf (file, _(" [floats passed in float registers]"));
if (flags & EF_ARM_PIC)
fprintf (file, _(" [position independent]"));
if (flags & EF_ARM_NEW_ABI)
fprintf (file, _(" [new ABI]"));
if (flags & EF_ARM_OLD_ABI)
fprintf (file, _(" [old ABI]"));
if (flags & EF_ARM_SOFT_FLOAT)
fprintf (file, _(" [software FP]"));
flags &= ~(EF_ARM_INTERWORK | EF_ARM_APCS_26 | EF_ARM_APCS_FLOAT
| EF_ARM_PIC | EF_ARM_NEW_ABI | EF_ARM_OLD_ABI
| EF_ARM_SOFT_FLOAT | EF_ARM_VFP_FLOAT
| EF_ARM_MAVERICK_FLOAT);
break;
case EF_ARM_EABI_VER1:
fprintf (file, _(" [Version1 EABI]"));
if (flags & EF_ARM_SYMSARESORTED)
fprintf (file, _(" [sorted symbol table]"));
else
fprintf (file, _(" [unsorted symbol table]"));
flags &= ~ EF_ARM_SYMSARESORTED;
break;
case EF_ARM_EABI_VER2:
fprintf (file, _(" [Version2 EABI]"));
if (flags & EF_ARM_SYMSARESORTED)
fprintf (file, _(" [sorted symbol table]"));
else
fprintf (file, _(" [unsorted symbol table]"));
if (flags & EF_ARM_DYNSYMSUSESEGIDX)
fprintf (file, _(" [dynamic symbols use segment index]"));
if (flags & EF_ARM_MAPSYMSFIRST)
fprintf (file, _(" [mapping symbols precede others]"));
flags &= ~(EF_ARM_SYMSARESORTED | EF_ARM_DYNSYMSUSESEGIDX
| EF_ARM_MAPSYMSFIRST);
break;
default:
fprintf (file, _(" <EABI version unrecognised>"));
break;
}
flags &= ~ EF_ARM_EABIMASK;
if (flags & EF_ARM_RELEXEC)
fprintf (file, _(" [relocatable executable]"));
if (flags & EF_ARM_HASENTRY)
fprintf (file, _(" [has entry point]"));
flags &= ~ (EF_ARM_RELEXEC | EF_ARM_HASENTRY);
if (flags)
fprintf (file, _("<Unrecognised flag bits set>"));
fputc ('\n', file);
return TRUE;
}
static int
elf32_arm_get_symbol_type (elf_sym, type)
Elf_Internal_Sym * elf_sym;
int type;
{
switch (ELF_ST_TYPE (elf_sym->st_info))
{
case STT_ARM_TFUNC:
return ELF_ST_TYPE (elf_sym->st_info);
case STT_ARM_16BIT:
if (type != STT_OBJECT)
return ELF_ST_TYPE (elf_sym->st_info);
break;
default:
break;
}
return type;
}
static asection *
elf32_arm_gc_mark_hook (sec, info, rel, h, sym)
asection *sec;
struct bfd_link_info *info ATTRIBUTE_UNUSED;
Elf_Internal_Rela *rel;
struct elf_link_hash_entry *h;
Elf_Internal_Sym *sym;
{
if (h != NULL)
{
switch (ELF32_R_TYPE (rel->r_info))
{
case R_ARM_GNU_VTINHERIT:
case R_ARM_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;
}
static bfd_boolean
elf32_arm_gc_sweep_hook (abfd, info, sec, relocs)
bfd *abfd ATTRIBUTE_UNUSED;
struct bfd_link_info *info ATTRIBUTE_UNUSED;
asection *sec ATTRIBUTE_UNUSED;
const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
{
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
bfd_signed_vma *local_got_refcounts;
const Elf_Internal_Rela *rel, *relend;
unsigned long r_symndx;
struct elf_link_hash_entry *h;
elf_section_data (sec)->local_dynrel = NULL;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
local_got_refcounts = elf_local_got_refcounts (abfd);
relend = relocs + sec->reloc_count;
for (rel = relocs; rel < relend; rel++)
switch (ELF32_R_TYPE (rel->r_info))
{
case R_ARM_GOT32:
r_symndx = ELF32_R_SYM (rel->r_info);
if (r_symndx >= symtab_hdr->sh_info)
{
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
if (h->got.refcount > 0)
h->got.refcount -= 1;
}
else if (local_got_refcounts != NULL)
{
if (local_got_refcounts[r_symndx] > 0)
local_got_refcounts[r_symndx] -= 1;
}
break;
case R_ARM_ABS32:
case R_ARM_REL32:
case R_ARM_PC24:
case R_ARM_PLT32:
r_symndx = ELF32_R_SYM (rel->r_info);
if (r_symndx >= symtab_hdr->sh_info)
{
struct elf32_arm_link_hash_entry *eh;
struct elf32_arm_relocs_copied **pp;
struct elf32_arm_relocs_copied *p;
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
if (h->plt.refcount > 0)
h->plt.refcount -= 1;
if (ELF32_R_TYPE (rel->r_info) == R_ARM_ABS32
|| ELF32_R_TYPE (rel->r_info) == R_ARM_REL32)
{
eh = (struct elf32_arm_link_hash_entry *) h;
for (pp = &eh->relocs_copied; (p = *pp) != NULL;
pp = &p->next)
if (p->section == sec)
{
p->count -= 1;
if (p->count == 0)
*pp = p->next;
break;
}
}
}
break;
default:
break;
}
return TRUE;
}
static bfd_boolean
elf32_arm_check_relocs (abfd, info, sec, relocs)
bfd *abfd;
struct bfd_link_info *info;
asection *sec;
const Elf_Internal_Rela *relocs;
{
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
struct elf_link_hash_entry **sym_hashes_end;
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
bfd *dynobj;
asection *sreloc;
bfd_vma *local_got_offsets;
struct elf32_arm_link_hash_table *htab;
if (info->relocatable)
return TRUE;
htab = elf32_arm_hash_table (info);
sreloc = NULL;
dynobj = elf_hash_table (info)->dynobj;
local_got_offsets = elf_local_got_offsets (abfd);
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++)
{
struct elf_link_hash_entry *h;
unsigned long r_symndx;
r_symndx = ELF32_R_SYM (rel->r_info);
if (r_symndx < symtab_hdr->sh_info)
h = NULL;
else
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
switch (ELF32_R_TYPE (rel->r_info))
{
case R_ARM_GOT32:
if (h != NULL)
{
h->got.refcount++;
}
else
{
bfd_signed_vma *local_got_refcounts;
local_got_refcounts = elf_local_got_refcounts (abfd);
if (local_got_refcounts == NULL)
{
bfd_size_type size;
size = symtab_hdr->sh_info;
size *= (sizeof (bfd_signed_vma) + sizeof(char));
local_got_refcounts = ((bfd_signed_vma *)
bfd_zalloc (abfd, size));
if (local_got_refcounts == NULL)
return FALSE;
elf_local_got_refcounts (abfd) = local_got_refcounts;
}
local_got_refcounts[r_symndx] += 1;
}
break;
case R_ARM_GOTOFF:
case R_ARM_GOTPC:
if (htab->sgot == NULL)
{
if (htab->root.dynobj == NULL)
htab->root.dynobj = abfd;
if (!create_got_section (htab->root.dynobj, info))
return FALSE;
}
break;
case R_ARM_ABS32:
case R_ARM_REL32:
case R_ARM_PC24:
case R_ARM_PLT32:
if (h != NULL)
{
if (!info->shared)
h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
if (ELF32_R_TYPE (rel->r_info) == R_ARM_PC24
|| ELF32_R_TYPE (rel->r_info) == R_ARM_PLT32)
h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
h->plt.refcount += 1;
}
if (info->shared
&& (sec->flags & SEC_ALLOC) != 0
&& ((ELF32_R_TYPE (rel->r_info) != R_ARM_PC24
&& ELF32_R_TYPE (rel->r_info) != R_ARM_PLT32)
|| (h != NULL
&& (! info->symbolic
|| (h->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR) == 0))))
{
struct elf32_arm_relocs_copied *p, **head;
if (sreloc == NULL)
{
const char * name;
name = (bfd_elf_string_from_elf_section
(abfd,
elf_elfheader (abfd)->e_shstrndx,
elf_section_data (sec)->rel_hdr.sh_name));
if (name == NULL)
return FALSE;
BFD_ASSERT (strncmp (name, ".rel", 4) == 0
&& strcmp (bfd_get_section_name (abfd, sec),
name + 4) == 0);
sreloc = bfd_get_section_by_name (dynobj, name);
if (sreloc == NULL)
{
flagword flags;
sreloc = bfd_make_section (dynobj, name);
flags = (SEC_HAS_CONTENTS | SEC_READONLY
| SEC_IN_MEMORY | SEC_LINKER_CREATED);
if ((sec->flags & SEC_ALLOC) != 0)
flags |= SEC_ALLOC | SEC_LOAD;
if (sreloc == NULL
|| ! bfd_set_section_flags (dynobj, sreloc, flags)
|| ! bfd_set_section_alignment (dynobj, sreloc, 2))
return FALSE;
}
elf_section_data (sec)->sreloc = sreloc;
}
if (h != NULL)
{
head = &((struct elf32_arm_link_hash_entry *) h)->relocs_copied;
}
else
{
asection *s;
s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
sec, r_symndx);
if (s == NULL)
return FALSE;
head = ((struct elf32_arm_relocs_copied **)
&elf_section_data (s)->local_dynrel);
}
p = *head;
if (p == NULL || p->section != sec)
{
bfd_size_type amt = sizeof *p;
p = bfd_alloc (htab->root.dynobj, amt);
if (p == NULL)
return FALSE;
p->next = *head;
*head = p;
p->section = sec;
p->count = 0;
}
if (ELF32_R_TYPE (rel->r_info) == R_ARM_ABS32
|| ELF32_R_TYPE (rel->r_info) == R_ARM_REL32)
p->count += 1;
}
break;
case R_ARM_GNU_VTINHERIT:
if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
return FALSE;
break;
case R_ARM_GNU_VTENTRY:
if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_offset))
return FALSE;
break;
}
}
return TRUE;
}
static bfd_boolean
elf32_arm_find_nearest_line
(abfd, section, symbols, offset, filename_ptr, functionname_ptr, line_ptr)
bfd *abfd;
asection *section;
asymbol **symbols;
bfd_vma offset;
const char **filename_ptr;
const char **functionname_ptr;
unsigned int *line_ptr;
{
bfd_boolean found;
const char *filename;
asymbol *func;
bfd_vma low_func;
asymbol **p;
if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
filename_ptr, functionname_ptr,
line_ptr, 0,
&elf_tdata (abfd)->dwarf2_find_line_info))
return TRUE;
if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset,
&found, filename_ptr,
functionname_ptr, line_ptr,
&elf_tdata (abfd)->line_info))
return FALSE;
if (found)
return TRUE;
if (symbols == NULL)
return FALSE;
filename = NULL;
func = NULL;
low_func = 0;
for (p = symbols; *p != NULL; p++)
{
elf_symbol_type *q;
q = (elf_symbol_type *) *p;
if (bfd_get_section (&q->symbol) != section)
continue;
switch (ELF_ST_TYPE (q->internal_elf_sym.st_info))
{
default:
break;
case STT_FILE:
filename = bfd_asymbol_name (&q->symbol);
break;
case STT_NOTYPE:
case STT_FUNC:
case STT_ARM_TFUNC:
if (q->symbol.section == section
&& q->symbol.value >= low_func
&& q->symbol.value <= offset)
{
func = (asymbol *) q;
low_func = q->symbol.value;
}
break;
}
}
if (func == NULL)
return FALSE;
*filename_ptr = filename;
*functionname_ptr = bfd_asymbol_name (func);
*line_ptr = 0;
return TRUE;
}
static bfd_boolean
elf32_arm_adjust_dynamic_symbol (info, h)
struct bfd_link_info * info;
struct elf_link_hash_entry * h;
{
bfd * dynobj;
asection * s;
unsigned int power_of_two;
dynobj = elf_hash_table (info)->dynobj;
BFD_ASSERT (dynobj != NULL
&& ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
|| h->weakdef != NULL
|| ((h->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC) != 0
&& (h->elf_link_hash_flags
& ELF_LINK_HASH_REF_REGULAR) != 0
&& (h->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR) == 0)));
if (h->type == STT_FUNC
|| (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
{
if (h->plt.refcount <= 0
|| SYMBOL_CALLS_LOCAL (info, h)
|| (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
&& h->root.type == bfd_link_hash_undefweak))
{
h->plt.offset = (bfd_vma) -1;
h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
}
return TRUE;
}
else
h->plt.offset = (bfd_vma) -1;
if (h->weakdef != NULL)
{
BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
|| h->weakdef->root.type == bfd_link_hash_defweak);
h->root.u.def.section = h->weakdef->root.u.def.section;
h->root.u.def.value = h->weakdef->root.u.def.value;
return TRUE;
}
if (info->shared)
return TRUE;
s = bfd_get_section_by_name (dynobj, ".dynbss");
BFD_ASSERT (s != NULL);
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
{
asection *srel;
srel = bfd_get_section_by_name (dynobj, ".rel.bss");
BFD_ASSERT (srel != NULL);
srel->_raw_size += sizeof (Elf32_External_Rel);
h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
}
power_of_two = bfd_log2 (h->size);
if (power_of_two > 3)
power_of_two = 3;
s->_raw_size = BFD_ALIGN (s->_raw_size,
(bfd_size_type) (1 << power_of_two));
if (power_of_two > bfd_get_section_alignment (dynobj, s))
{
if (! bfd_set_section_alignment (dynobj, s, power_of_two))
return FALSE;
}
h->root.u.def.section = s;
h->root.u.def.value = s->_raw_size;
s->_raw_size += h->size;
return TRUE;
}
static bfd_boolean
allocate_dynrelocs (h, inf)
struct elf_link_hash_entry *h;
PTR inf;
{
struct bfd_link_info *info;
struct elf32_arm_link_hash_table *htab;
struct elf32_arm_link_hash_entry *eh;
struct elf32_arm_relocs_copied *p;
if (h->root.type == bfd_link_hash_indirect)
return TRUE;
if (h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
info = (struct bfd_link_info *) inf;
htab = elf32_arm_hash_table (info);
if (htab->root.dynamic_sections_created
&& h->plt.refcount > 0)
{
if (h->dynindx == -1
&& (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
{
if (! bfd_elf32_link_record_dynamic_symbol (info, h))
return FALSE;
}
if (info->shared
|| WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
{
asection *s = htab->splt;
if (s->_raw_size == 0)
s->_raw_size += PLT_HEADER_SIZE;
h->plt.offset = s->_raw_size;
if (! info->shared
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
{
h->root.u.def.section = s;
h->root.u.def.value = h->plt.offset;
}
s->_raw_size += PLT_ENTRY_SIZE;
htab->sgotplt->_raw_size += 4;
htab->srelplt->_raw_size += sizeof (Elf32_External_Rel);
}
else
{
h->plt.offset = (bfd_vma) -1;
h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
}
}
else
{
h->plt.offset = (bfd_vma) -1;
h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
}
if (h->got.refcount > 0)
{
asection *s;
bfd_boolean dyn;
if (h->dynindx == -1
&& (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
{
if (! bfd_elf32_link_record_dynamic_symbol (info, h))
return FALSE;
}
s = htab->sgot;
h->got.offset = s->_raw_size;
s->_raw_size += 4;
dyn = htab->root.dynamic_sections_created;
if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|| h->root.type != bfd_link_hash_undefweak)
&& (info->shared
|| WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
htab->srelgot->_raw_size += sizeof (Elf32_External_Rel);
}
else
h->got.offset = (bfd_vma) -1;
eh = (struct elf32_arm_link_hash_entry *) h;
if (eh->relocs_copied == NULL)
return TRUE;
if (info->shared)
{
if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
&& h->root.type == bfd_link_hash_undefweak)
eh->relocs_copied = NULL;
}
else
{
if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
&& (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
|| (htab->root.dynamic_sections_created
&& (h->root.type == bfd_link_hash_undefweak
|| h->root.type == bfd_link_hash_undefined))))
{
if (h->dynindx == -1
&& (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
{
if (! bfd_elf32_link_record_dynamic_symbol (info, h))
return FALSE;
}
if (h->dynindx != -1)
goto keep;
}
eh->relocs_copied = NULL;
keep: ;
}
for (p = eh->relocs_copied; p != NULL; p = p->next)
{
asection *sreloc = elf_section_data (p->section)->sreloc;
sreloc->_raw_size += p->count * sizeof (Elf32_External_Rel);
}
return TRUE;
}
static bfd_boolean
elf32_arm_size_dynamic_sections (output_bfd, info)
bfd * output_bfd ATTRIBUTE_UNUSED;
struct bfd_link_info * info;
{
bfd * dynobj;
asection * s;
bfd_boolean plt;
bfd_boolean relocs;
bfd *ibfd;
struct elf32_arm_link_hash_table *htab;
htab = elf32_arm_hash_table (info);
dynobj = elf_hash_table (info)->dynobj;
BFD_ASSERT (dynobj != NULL);
if (elf_hash_table (info)->dynamic_sections_created)
{
if (info->executable)
{
s = bfd_get_section_by_name (dynobj, ".interp");
BFD_ASSERT (s != NULL);
s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
}
}
for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
{
bfd_signed_vma *local_got;
bfd_signed_vma *end_local_got;
char *local_tls_type;
bfd_size_type locsymcount;
Elf_Internal_Shdr *symtab_hdr;
asection *srel;
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
continue;
for (s = ibfd->sections; s != NULL; s = s->next)
{
struct elf32_arm_relocs_copied *p;
for (p = *((struct elf32_arm_relocs_copied **)
&elf_section_data (s)->local_dynrel);
p != NULL;
p = p->next)
{
if (!bfd_is_abs_section (p->section)
&& bfd_is_abs_section (p->section->output_section))
{
}
else if (p->count != 0)
{
srel = elf_section_data (p->section)->sreloc;
srel->_raw_size += p->count * sizeof (Elf32_External_Rel);
if ((p->section->output_section->flags & SEC_READONLY) != 0)
info->flags |= DF_TEXTREL;
}
}
}
local_got = elf_local_got_refcounts (ibfd);
if (!local_got)
continue;
symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
locsymcount = symtab_hdr->sh_info;
end_local_got = local_got + locsymcount;
s = htab->sgot;
srel = htab->srelgot;
for (; local_got < end_local_got; ++local_got, ++local_tls_type)
{
if (*local_got > 0)
{
*local_got = s->_raw_size;
s->_raw_size += 4;
if (info->shared)
srel->_raw_size += sizeof (Elf32_External_Rel);
}
else
*local_got = (bfd_vma) -1;
}
}
elf_link_hash_traverse (&htab->root, allocate_dynrelocs, (PTR) info);
plt = FALSE;
relocs = FALSE;
for (s = dynobj->sections; s != NULL; s = s->next)
{
const char * name;
bfd_boolean strip;
if ((s->flags & SEC_LINKER_CREATED) == 0)
continue;
name = bfd_get_section_name (dynobj, s);
strip = FALSE;
if (strcmp (name, ".plt") == 0)
{
if (s->_raw_size == 0)
{
strip = TRUE;
}
else
{
plt = TRUE;
}
}
else if (strncmp (name, ".rel", 4) == 0)
{
if (s->_raw_size == 0)
{
strip = TRUE;
}
else
{
if (strcmp (name, ".rel.plt") != 0)
relocs = TRUE;
s->reloc_count = 0;
}
}
else if (strncmp (name, ".got", 4) != 0)
{
continue;
}
if (strip)
{
_bfd_strip_section_from_output (info, s);
continue;
}
s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
if (s->contents == NULL && s->_raw_size != 0)
return FALSE;
}
if (elf_hash_table (info)->dynamic_sections_created)
{
#define add_dynamic_entry(TAG, VAL) \
bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
if (!info->shared)
{
if (!add_dynamic_entry (DT_DEBUG, 0))
return FALSE;
}
if (plt)
{
if ( !add_dynamic_entry (DT_PLTGOT, 0)
|| !add_dynamic_entry (DT_PLTRELSZ, 0)
|| !add_dynamic_entry (DT_PLTREL, DT_REL)
|| !add_dynamic_entry (DT_JMPREL, 0))
return FALSE;
}
if (relocs)
{
if ( !add_dynamic_entry (DT_REL, 0)
|| !add_dynamic_entry (DT_RELSZ, 0)
|| !add_dynamic_entry (DT_RELENT, sizeof (Elf32_External_Rel)))
return FALSE;
}
if ((info->flags & DF_TEXTREL) != 0)
{
if (!add_dynamic_entry (DT_TEXTREL, 0))
return FALSE;
info->flags |= DF_TEXTREL;
}
}
#undef add_synamic_entry
return TRUE;
}
static bfd_boolean
elf32_arm_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;
{
bfd * dynobj;
dynobj = elf_hash_table (info)->dynobj;
if (h->plt.offset != (bfd_vma) -1)
{
asection * splt;
asection * sgot;
asection * srel;
bfd_vma plt_index;
bfd_vma got_offset;
Elf_Internal_Rela rel;
bfd_byte *loc;
bfd_vma got_displacement;
BFD_ASSERT (h->dynindx != -1);
splt = bfd_get_section_by_name (dynobj, ".plt");
sgot = bfd_get_section_by_name (dynobj, ".got.plt");
srel = bfd_get_section_by_name (dynobj, ".rel.plt");
BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
plt_index = (h->plt.offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
got_offset = (plt_index + 3) * 4;
got_displacement = (sgot->output_section->vma
+ sgot->output_offset
+ got_offset
- splt->output_section->vma
- splt->output_offset
- h->plt.offset
- 8);
BFD_ASSERT ((got_displacement & 0xf0000000) == 0);
bfd_put_32 (output_bfd, elf32_arm_plt_entry[0] | ((got_displacement & 0x0ff00000) >> 20),
splt->contents + h->plt.offset + 0);
bfd_put_32 (output_bfd, elf32_arm_plt_entry[1] | ((got_displacement & 0x000ff000) >> 12),
splt->contents + h->plt.offset + 4);
bfd_put_32 (output_bfd, elf32_arm_plt_entry[2] | (got_displacement & 0x00000fff),
splt->contents + h->plt.offset + 8);
#ifdef FOUR_WORD_PLT
bfd_put_32 (output_bfd, elf32_arm_plt_entry[3],
splt->contents + h->plt.offset + 12);
#endif
bfd_put_32 (output_bfd,
(splt->output_section->vma
+ splt->output_offset),
sgot->contents + got_offset);
rel.r_offset = (sgot->output_section->vma
+ sgot->output_offset
+ got_offset);
rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_JUMP_SLOT);
loc = srel->contents + plt_index * sizeof (Elf32_External_Rel);
bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
{
sym->st_shndx = SHN_UNDEF;
if ((h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR_NONWEAK)
== 0)
sym->st_value = 0;
}
}
if (h->got.offset != (bfd_vma) -1)
{
asection * sgot;
asection * srel;
Elf_Internal_Rela rel;
bfd_byte *loc;
sgot = bfd_get_section_by_name (dynobj, ".got");
srel = bfd_get_section_by_name (dynobj, ".rel.got");
BFD_ASSERT (sgot != NULL && srel != NULL);
rel.r_offset = (sgot->output_section->vma
+ sgot->output_offset
+ (h->got.offset &~ (bfd_vma) 1));
if (info->shared
&& SYMBOL_REFERENCES_LOCAL (info, h))
{
BFD_ASSERT((h->got.offset & 1) != 0);
rel.r_info = ELF32_R_INFO (0, R_ARM_RELATIVE);
}
else
{
BFD_ASSERT((h->got.offset & 1) == 0);
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_GLOB_DAT);
}
loc = srel->contents + srel->reloc_count++ * sizeof (Elf32_External_Rel);
bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
}
if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
{
asection * s;
Elf_Internal_Rela rel;
bfd_byte *loc;
BFD_ASSERT (h->dynindx != -1
&& (h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak));
s = bfd_get_section_by_name (h->root.u.def.section->owner,
".rel.bss");
BFD_ASSERT (s != NULL);
rel.r_offset = (h->root.u.def.value
+ h->root.u.def.section->output_section->vma
+ h->root.u.def.section->output_offset);
rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_COPY);
loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rel);
bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
}
if (strcmp (h->root.root.string, "_DYNAMIC") == 0
|| strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
sym->st_shndx = SHN_ABS;
return TRUE;
}
static bfd_boolean
elf32_arm_finish_dynamic_sections (output_bfd, info)
bfd * output_bfd;
struct bfd_link_info * info;
{
bfd * dynobj;
asection * sgot;
asection * sdyn;
dynobj = elf_hash_table (info)->dynobj;
sgot = bfd_get_section_by_name (dynobj, ".got.plt");
BFD_ASSERT (sgot != NULL);
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
if (elf_hash_table (info)->dynamic_sections_created)
{
asection *splt;
Elf32_External_Dyn *dyncon, *dynconend;
splt = bfd_get_section_by_name (dynobj, ".plt");
BFD_ASSERT (splt != NULL && sdyn != NULL);
dyncon = (Elf32_External_Dyn *) sdyn->contents;
dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
for (; dyncon < dynconend; dyncon++)
{
Elf_Internal_Dyn dyn;
const char * name;
asection * s;
bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
switch (dyn.d_tag)
{
default:
break;
case DT_PLTGOT:
name = ".got";
goto get_vma;
case DT_JMPREL:
name = ".rel.plt";
get_vma:
s = bfd_get_section_by_name (output_bfd, name);
BFD_ASSERT (s != NULL);
dyn.d_un.d_ptr = s->vma;
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_PLTRELSZ:
s = bfd_get_section_by_name (output_bfd, ".rel.plt");
BFD_ASSERT (s != NULL);
if (s->_cooked_size != 0)
dyn.d_un.d_val = s->_cooked_size;
else
dyn.d_un.d_val = s->_raw_size;
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_RELSZ:
s = bfd_get_section_by_name (output_bfd, ".rel.plt");
if (s != NULL)
{
if (s->_cooked_size != 0)
dyn.d_un.d_val -= s->_cooked_size;
else
dyn.d_un.d_val -= s->_raw_size;
}
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_INIT:
name = info->init_function;
goto get_sym;
case DT_FINI:
name = info->fini_function;
get_sym:
if (dyn.d_un.d_val != 0)
{
struct elf_link_hash_entry * eh;
eh = elf_link_hash_lookup (elf_hash_table (info), name,
FALSE, FALSE, TRUE);
if (eh != (struct elf_link_hash_entry *) NULL
&& ELF_ST_TYPE (eh->type) == STT_ARM_TFUNC)
{
dyn.d_un.d_val |= 1;
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
}
}
break;
}
}
if (splt->_raw_size > 0)
{
bfd_vma got_displacement;
got_displacement = (sgot->output_section->vma
+ sgot->output_offset
- splt->output_section->vma
- splt->output_offset
- 16);
bfd_put_32 (output_bfd, elf32_arm_plt0_entry[0], splt->contents + 0);
bfd_put_32 (output_bfd, elf32_arm_plt0_entry[1], splt->contents + 4);
bfd_put_32 (output_bfd, elf32_arm_plt0_entry[2], splt->contents + 8);
bfd_put_32 (output_bfd, elf32_arm_plt0_entry[3], splt->contents + 12);
#ifdef FOUR_WORD_PLT
bfd_put_32 (output_bfd, got_displacement, splt->contents + 28);
#else
bfd_put_32 (output_bfd, got_displacement, splt->contents + 16);
#endif
}
elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
}
if (sgot->_raw_size > 0)
{
if (sdyn == NULL)
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
else
bfd_put_32 (output_bfd,
sdyn->output_section->vma + sdyn->output_offset,
sgot->contents);
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
}
elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
return TRUE;
}
static void
elf32_arm_post_process_headers (abfd, link_info)
bfd * abfd;
struct bfd_link_info * link_info ATTRIBUTE_UNUSED;
{
Elf_Internal_Ehdr * i_ehdrp;
i_ehdrp = elf_elfheader (abfd);
i_ehdrp->e_ident[EI_OSABI] = ARM_ELF_OS_ABI_VERSION;
i_ehdrp->e_ident[EI_ABIVERSION] = ARM_ELF_ABI_VERSION;
}
static enum elf_reloc_type_class
elf32_arm_reloc_type_class (rela)
const Elf_Internal_Rela *rela;
{
switch ((int) ELF32_R_TYPE (rela->r_info))
{
case R_ARM_RELATIVE:
return reloc_class_relative;
case R_ARM_JUMP_SLOT:
return reloc_class_plt;
case R_ARM_COPY:
return reloc_class_copy;
default:
return reloc_class_normal;
}
}
static bfd_boolean elf32_arm_section_flags PARAMS ((flagword *, Elf_Internal_Shdr *));
static void elf32_arm_final_write_processing PARAMS ((bfd *, bfd_boolean));
static bfd_boolean
elf32_arm_section_flags (flags, hdr)
flagword *flags;
Elf_Internal_Shdr *hdr;
{
if (hdr->sh_type == SHT_NOTE)
*flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_SAME_CONTENTS;
return TRUE;
}
void
elf32_arm_final_write_processing (abfd, linker)
bfd *abfd;
bfd_boolean linker ATTRIBUTE_UNUSED;
{
bfd_arm_update_notes (abfd, ARM_NOTE_SECTION);
}
#define ELF_ARCH bfd_arch_arm
#define ELF_MACHINE_CODE EM_ARM
#ifdef __QNXTARGET__
#define ELF_MAXPAGESIZE 0x1000
#else
#define ELF_MAXPAGESIZE 0x8000
#endif
#define bfd_elf32_bfd_copy_private_bfd_data elf32_arm_copy_private_bfd_data
#define bfd_elf32_bfd_merge_private_bfd_data elf32_arm_merge_private_bfd_data
#define bfd_elf32_bfd_set_private_flags elf32_arm_set_private_flags
#define bfd_elf32_bfd_print_private_bfd_data elf32_arm_print_private_bfd_data
#define bfd_elf32_bfd_link_hash_table_create elf32_arm_link_hash_table_create
#define bfd_elf32_bfd_reloc_type_lookup elf32_arm_reloc_type_lookup
#define bfd_elf32_find_nearest_line elf32_arm_find_nearest_line
#define elf_backend_get_symbol_type elf32_arm_get_symbol_type
#define elf_backend_gc_mark_hook elf32_arm_gc_mark_hook
#define elf_backend_gc_sweep_hook elf32_arm_gc_sweep_hook
#define elf_backend_check_relocs elf32_arm_check_relocs
#define elf_backend_relocate_section elf32_arm_relocate_section
#define elf_backend_adjust_dynamic_symbol elf32_arm_adjust_dynamic_symbol
#define elf_backend_create_dynamic_sections elf32_arm_create_dynamic_sections
#define elf_backend_finish_dynamic_symbol elf32_arm_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections elf32_arm_finish_dynamic_sections
#define elf_backend_size_dynamic_sections elf32_arm_size_dynamic_sections
#define elf_backend_post_process_headers elf32_arm_post_process_headers
#define elf_backend_reloc_type_class elf32_arm_reloc_type_class
#define elf_backend_object_p elf32_arm_object_p
#define elf_backend_section_flags elf32_arm_section_flags
#define elf_backend_final_write_processing elf32_arm_final_write_processing
#define elf_backend_copy_indirect_symbol elf32_arm_copy_indirect_symbol
#define elf_backend_can_refcount 1
#define elf_backend_can_gc_sections 1
#define elf_backend_plt_readonly 1
#define elf_backend_want_got_plt 1
#define elf_backend_want_plt_sym 0
#if !USE_REL
#define elf_backend_rela_normal 1
#endif
#define elf_backend_got_header_size 12
#include "elf32-target.h"