bfd_boolean
bfd_hash_table_init (struct bfd_hash_table *table,
struct bfd_hash_entry *(*newfunc) (struct bfd_hash_entry *,
struct bfd_hash_table *,
const char *),
unsigned int entsize)
{
return bfd_hash_table_init_n (table, newfunc, entsize,
bfd_default_hash_table_size);
}
bfd *
_bfd_new_bfd (void)
{
bfd *nbfd;
nbfd = (bfd *) bfd_zmalloc (sizeof (bfd));
if (nbfd == NULL)
return NULL;
if (bfd_use_reserved_id)
{
nbfd->id = --bfd_reserved_id_counter;
--bfd_use_reserved_id;
}
else
nbfd->id = bfd_id_counter++;
nbfd->memory = objalloc_create ();
if (nbfd->memory == NULL)
{
bfd_set_error (bfd_error_no_memory);
free (nbfd);
return NULL;
}
nbfd->arch_info = &bfd_default_arch_struct;
nbfd->direction = no_direction;
nbfd->iostream = NULL;
nbfd->where = 0;
if (!bfd_hash_table_init_n (& nbfd->section_htab, bfd_section_hash_newfunc,
sizeof (struct section_hash_entry), 13))
{
free (nbfd);
return NULL;
}
nbfd->sections = NULL;
nbfd->section_last = NULL;
nbfd->format = bfd_unknown;
nbfd->my_archive = NULL;
nbfd->origin = 0;
nbfd->opened_once = FALSE;
nbfd->output_has_begun = FALSE;
nbfd->section_count = 0;
nbfd->usrdata = NULL;
nbfd->cacheable = FALSE;
nbfd->flags = BFD_NO_FLAGS;
nbfd->mtime_set = FALSE;
return nbfd;
}
bfd *
_bfd_new_bfd ()
{
bfd *nbfd;
nbfd = (bfd *) bfd_zmalloc ((bfd_size_type) sizeof (bfd));
if (nbfd == NULL)
return NULL;
nbfd->id = _bfd_id_counter++;
nbfd->memory = (PTR) objalloc_create ();
if (nbfd->memory == NULL)
{
bfd_set_error (bfd_error_no_memory);
free (nbfd);
return NULL;
}
nbfd->arch_info = &bfd_default_arch_struct;
nbfd->direction = no_direction;
nbfd->iostream = NULL;
nbfd->where = 0;
if (!bfd_hash_table_init_n (&nbfd->section_htab,
bfd_section_hash_newfunc,
251))
{
free (nbfd);
return NULL;
}
nbfd->sections = (asection *) NULL;
nbfd->section_tail = &nbfd->sections;
nbfd->format = bfd_unknown;
nbfd->my_archive = (bfd *) NULL;
nbfd->origin = 0;
nbfd->opened_once = FALSE;
nbfd->output_has_begun = FALSE;
nbfd->section_count = 0;
nbfd->usrdata = (PTR) NULL;
nbfd->cacheable = FALSE;
nbfd->flags = BFD_NO_FLAGS;
nbfd->mtime_set = FALSE;
return nbfd;
}
bfd *
_bfd_new_bfd (void)
{
bfd *nbfd;
nbfd = (bfd *) bfd_zmalloc (sizeof (bfd));
if (nbfd == NULL)
return NULL;
if (bfd_use_reserved_id)
{
nbfd->id = --bfd_reserved_id_counter;
--bfd_use_reserved_id;
}
else
nbfd->id = bfd_id_counter++;
nbfd->memory = objalloc_create ();
if (nbfd->memory == NULL)
{
bfd_set_error (bfd_error_no_memory);
free (nbfd);
return NULL;
}
nbfd->arch_info = &bfd_default_arch_struct;
if (!bfd_hash_table_init_n (& nbfd->section_htab, bfd_section_hash_newfunc,
sizeof (struct section_hash_entry), 13))
{
free (nbfd);
return NULL;
}
return nbfd;
}
static void
macho_add_oso_symfile (oso_el *oso, const gdb_bfd_ref_ptr &abfd,
const char *name,
struct objfile *main_objfile,
symfile_add_flags symfile_flags)
{
int storage;
int i;
asymbol **symbol_table;
asymbol **symp;
struct bfd_hash_table table;
int nbr_sections;
/* Per section flag to mark which section have been rebased. */
unsigned char *sections_rebased;
if (mach_o_debug_level > 0)
printf_unfiltered
(_("Loading debugging symbols from oso: %s\n"), oso->name);
if (!bfd_check_format (abfd.get (), bfd_object))
{
warning (_("`%s': can't read symbols: %s."), oso->name,
bfd_errmsg (bfd_get_error ()));
return;
}
if (abfd->my_archive == NULL && oso->mtime != bfd_get_mtime (abfd.get ()))
{
warning (_("`%s': file time stamp mismatch."), oso->name);
return;
}
if (!bfd_hash_table_init_n (&table, macho_sym_hash_newfunc,
sizeof (struct macho_sym_hash_entry),
oso->nbr_syms))
{
warning (_("`%s': can't create hash table"), oso->name);
return;
}
bfd_set_cacheable (abfd.get (), 1);
/* Read symbols table. */
storage = bfd_get_symtab_upper_bound (abfd.get ());
symbol_table = (asymbol **) xmalloc (storage);
bfd_canonicalize_symtab (abfd.get (), symbol_table);
/* Init section flags. */
nbr_sections = bfd_count_sections (abfd.get ());
sections_rebased = (unsigned char *) alloca (nbr_sections);
for (i = 0; i < nbr_sections; i++)
sections_rebased[i] = 0;
/* Put symbols for the OSO file in the hash table. */
for (symp = oso->oso_sym; symp != oso->end_sym; symp++)
{
const asymbol *sym = *symp;
bfd_mach_o_asymbol *mach_o_sym = (bfd_mach_o_asymbol *)sym;
switch (mach_o_sym->n_type)
{
case N_ENSYM:
case N_BNSYM:
case N_GSYM:
sym = NULL;
break;
case N_FUN:
if (sym->name == NULL || sym->name[0] == 0)
sym = NULL;
break;
case N_STSYM:
break;
default:
sym = NULL;
break;
}
if (sym != NULL)
{
struct macho_sym_hash_entry *ent;
ent = (struct macho_sym_hash_entry *)
bfd_hash_lookup (&table, sym->name, TRUE, FALSE);
if (ent->sym != NULL)
complaint (_("Duplicated symbol %s in symbol table"), sym->name);
else
{
if (mach_o_debug_level > 4)
{
struct gdbarch *arch = get_objfile_arch (main_objfile);
printf_unfiltered
(_("Adding symbol %s (addr: %s)\n"),
sym->name, paddress (arch, sym->value));
}
ent->sym = sym;
}
}
}
/* Relocate symbols of the OSO. */
for (i = 0; symbol_table[i]; i++)
{
asymbol *sym = symbol_table[i];
bfd_mach_o_asymbol *mach_o_sym = (bfd_mach_o_asymbol *)sym;
if (mach_o_sym->n_type & BFD_MACH_O_N_STAB)
continue;
if ((mach_o_sym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF
&& sym->value != 0)
{
/* For common symbol use the min symtab and modify the OSO
symbol table. */
CORE_ADDR res;
res = macho_resolve_oso_sym_with_minsym (main_objfile, sym);
if (res != 0)
{
sym->section = bfd_com_section_ptr;
sym->value = res;
}
}
else if ((mach_o_sym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT)
{
/* Normal symbol. */
asection *sec = sym->section;
bfd_mach_o_section *msec;
unsigned int sec_type;
/* Skip buggy ones. */
if (sec == NULL || sections_rebased[sec->index] != 0)
continue;
/* Only consider regular, non-debugging sections. */
msec = bfd_mach_o_get_mach_o_section (sec);
sec_type = msec->flags & BFD_MACH_O_SECTION_TYPE_MASK;
if ((sec_type == BFD_MACH_O_S_REGULAR
|| sec_type == BFD_MACH_O_S_ZEROFILL)
&& (msec->flags & BFD_MACH_O_S_ATTR_DEBUG) == 0)
{
CORE_ADDR addr = 0;
if ((mach_o_sym->n_type & BFD_MACH_O_N_EXT) != 0)
{
/* Use the min symtab for global symbols. */
addr = macho_resolve_oso_sym_with_minsym (main_objfile, sym);
}
else
{
struct macho_sym_hash_entry *ent;
ent = (struct macho_sym_hash_entry *)
bfd_hash_lookup (&table, sym->name, FALSE, FALSE);
if (ent != NULL)
addr = bfd_asymbol_value (ent->sym);
}
/* Adjust the section. */
if (addr != 0)
{
CORE_ADDR res = addr - sym->value;
if (mach_o_debug_level > 3)
{
struct gdbarch *arch = get_objfile_arch (main_objfile);
printf_unfiltered
(_("resolve sect %s with %s (set to %s)\n"),
sec->name, sym->name,
paddress (arch, res));
}
bfd_set_section_vma (abfd.get (), sec, res);
sections_rebased[sec->index] = 1;
}
}
else
{
/* Mark the section as never rebased. */
sections_rebased[sec->index] = 2;
}
}
}
bfd_hash_table_free (&table);
/* We need to clear SYMFILE_MAINLINE to avoid interractive question
from symfile.c:symbol_file_add_with_addrs_or_offsets. */
symbol_file_add_from_bfd
(abfd.get (), name, symfile_flags & ~(SYMFILE_MAINLINE | SYMFILE_VERBOSE),
NULL,
main_objfile->flags & (OBJF_REORDERED | OBJF_SHARED
| OBJF_READNOW | OBJF_USERLOADED),
main_objfile);
}
