/* BFD semi-generic back-end for a.out binaries.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
Written by Cygnus Support.
int ext = obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE;
if (code == BFD_RELOC_CTOR)
- switch (bfd_get_arch_info (abfd)->bits_per_address)
+ switch (bfd_arch_bits_per_address (abfd))
{
case 32:
code = BFD_RELOC_32;
const bfd_target *result;
bfd_size_type amt = sizeof (* rawptr);
- rawptr = bfd_zalloc (abfd, amt);
+ rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, amt);
if (rawptr == NULL)
return NULL;
if (execp->a_entry != 0
|| (execp->a_entry >= obj_textsec (abfd)->vma
&& execp->a_entry < (obj_textsec (abfd)->vma
- + obj_textsec (abfd)->size)))
+ + obj_textsec (abfd)->size)
+ && execp->a_trsize == 0
+ && execp->a_drsize == 0))
abfd->flags |= EXEC_P;
#ifdef STAT_FOR_EXEC
else
bfd_set_error (bfd_error_system_call);
- rawptr = bfd_zalloc (abfd, amt);
+ rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, amt);
if (rawptr == NULL)
return FALSE;
case bfd_mach_mips9000:
case bfd_mach_mips10000:
case bfd_mach_mips12000:
+ case bfd_mach_mips14000:
+ case bfd_mach_mips16000:
case bfd_mach_mips16:
case bfd_mach_mipsisa32:
case bfd_mach_mipsisa32r2:
case bfd_mach_mipsisa64:
case bfd_mach_mipsisa64r2:
case bfd_mach_mips_sb1:
+ case bfd_mach_mips_xlr:
/* FIXME: These should be MIPS3, MIPS4, MIPS16, MIPS32, etc. */
arch_flags = M_MIPS2;
break;
{
bfd_size_type count;
struct external_nlist *syms;
- bfd_size_type amt;
count = exec_hdr (abfd)->a_syms / EXTERNAL_NLIST_SIZE;
+ if (count == 0)
+ return TRUE; /* Nothing to do. */
#ifdef USE_MMAP
if (! bfd_get_file_window (abfd, obj_sym_filepos (abfd),
/* We allocate using malloc to make the values easy to free
later on. If we put them on the objalloc it might not be
possible to free them. */
- syms = bfd_malloc (count * EXTERNAL_NLIST_SIZE);
- if (syms == NULL && count != 0)
+ syms = (struct external_nlist *) bfd_malloc (count * EXTERNAL_NLIST_SIZE);
+ if (syms == NULL)
return FALSE;
- amt = exec_hdr (abfd)->a_syms;
- if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
- || bfd_bread (syms, amt, abfd) != amt)
- {
- free (syms);
- return FALSE;
- }
+ {
+ bfd_size_type amt;
+ amt = exec_hdr (abfd)->a_syms;
+ if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
+ || bfd_bread (syms, amt, abfd) != amt)
+ {
+ free (syms);
+ return FALSE;
+ }
+ }
#endif
obj_aout_external_syms (abfd) = syms;
return FALSE;
strings = (char *) obj_aout_string_window (abfd).data;
#else
- strings = bfd_malloc (stringsize + 1);
+ strings = (char *) bfd_malloc (stringsize + 1);
if (strings == NULL)
return FALSE;
{
bfd_size_type amt = sizeof (aout_symbol_type);
- aout_symbol_type *new = bfd_zalloc (abfd, amt);
- if (!new)
+ aout_symbol_type *new_symbol = (aout_symbol_type *) bfd_zalloc (abfd, amt);
+ if (!new_symbol)
return NULL;
- new->symbol.the_bfd = abfd;
+ new_symbol->symbol.the_bfd = abfd;
- return &new->symbol;
+ return &new_symbol->symbol;
}
/* Translate a set of internal symbols into external symbols. */
return TRUE; /* Nothing to do. */
cached_size *= sizeof (aout_symbol_type);
- cached = bfd_zmalloc (cached_size);
+ cached = (aout_symbol_type *) bfd_zmalloc (cached_size);
if (cached == NULL)
return FALSE;
bfd_boolean copy)
{
bfd_boolean hash;
- bfd_size_type index;
+ bfd_size_type str_index;
/* An index of 0 always means the empty string. */
if (str == 0 || *str == '\0')
if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
hash = FALSE;
- index = _bfd_stringtab_add (tab, str, hash, copy);
+ str_index = _bfd_stringtab_add (tab, str, hash, copy);
- if (index != (bfd_size_type) -1)
+ if (str_index != (bfd_size_type) -1)
/* Add BYTES_IN_WORD to the return value to account for the
space taken up by the string table size. */
- index += BYTES_IN_WORD;
+ str_index += BYTES_IN_WORD;
- return index;
+ return str_index;
}
/* Write out a strtab. ABFD is already at the right location in the
>> RELOC_EXT_BITS_TYPE_SH_LITTLE);
}
- cache_ptr->howto = howto_table_ext + r_type;
+ if (r_type < TABLE_SIZE (howto_table_ext))
+ cache_ptr->howto = howto_table_ext + r_type;
+ else
+ cache_ptr->howto = NULL;
/* Base relative relocs are always against the symbol table,
regardless of the setting of r_extern. r_extern just reflects
howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
+ 16 * r_jmptable + 32 * r_relative);
- BFD_ASSERT (howto_idx < TABLE_SIZE (howto_table_std));
- cache_ptr->howto = howto_table_std + howto_idx;
- BFD_ASSERT (cache_ptr->howto->type != (unsigned int) -1);
+ if (howto_idx < TABLE_SIZE (howto_table_std))
+ {
+ cache_ptr->howto = howto_table_std + howto_idx;
+ if (cache_ptr->howto->type == (unsigned int) -1)
+ cache_ptr->howto = NULL;
+ }
+ else
+ cache_ptr->howto = NULL;
/* Base relative relocs are always against the symbol table,
regardless of the setting of r_extern. r_extern just reflects
return TRUE; /* Nothing to be done. */
amt = count * sizeof (arelent);
- reloc_cache = bfd_zmalloc (amt);
+ reloc_cache = (arelent *) bfd_zmalloc (amt);
if (reloc_cache == NULL)
return FALSE;
each_size = obj_reloc_entry_size (abfd);
natsize = (bfd_size_type) each_size * count;
- native = bfd_zalloc (abfd, natsize);
+ native = (unsigned char *) bfd_zalloc (abfd, natsize);
if (!native)
return FALSE;
adata (abfd).line_buf = buf = NULL;
else
{
- buf = bfd_malloc (filelen + funclen + 3);
+ buf = (char *) bfd_malloc (filelen + funclen + 3);
adata (abfd).line_buf = buf;
if (buf == NULL)
return FALSE;
/* Allocate the structure if it has not already been allocated by a
subclass. */
if (ret == NULL)
- ret = bfd_hash_allocate (table, sizeof (* ret));
+ ret = (struct aout_link_hash_entry *) bfd_hash_allocate (table,
+ sizeof (* ret));
if (ret == NULL)
return NULL;
struct aout_link_hash_table *ret;
bfd_size_type amt = sizeof (* ret);
- ret = bfd_malloc (amt);
+ ret = (struct aout_link_hash_table *) bfd_malloc (amt);
if (ret == NULL)
return NULL;
return FALSE;
}
+ if (sym_count == 0)
+ return TRUE; /* Nothing to do. */
+
/* We keep a list of the linker hash table entries that correspond
to particular symbols. We could just look them up in the hash
table, but keeping the list is more efficient. Perhaps this
should be conditional on info->keep_memory. */
amt = sym_count * sizeof (struct aout_link_hash_entry *);
- sym_hash = bfd_alloc (abfd, amt);
- if (sym_hash == NULL && sym_count != 0)
+ sym_hash = (struct aout_link_hash_entry **) bfd_alloc (abfd, amt);
+ if (sym_hash == NULL)
return FALSE;
obj_aout_sym_hashes (abfd) = sym_hash;
static bfd_boolean
aout_link_check_ar_symbols (bfd *abfd,
struct bfd_link_info *info,
- bfd_boolean *pneeded)
+ bfd_boolean *pneeded,
+ bfd **subsbfd)
{
struct external_nlist *p;
struct external_nlist *pend;
{
int skip = 0;
- switch (info->common_skip_ar_aymbols)
+ switch (info->common_skip_ar_symbols)
{
case bfd_link_common_skip_text:
skip = (type == (N_TEXT | N_EXT));
continue;
}
- if (! (*info->callbacks->add_archive_element) (info, abfd, name))
+ if (!(*info->callbacks
+ ->add_archive_element) (info, abfd, name, subsbfd))
return FALSE;
*pneeded = TRUE;
return TRUE;
outside BFD. We assume that we should link
in the object file. This is done for the -u
option in the linker. */
- if (! (*info->callbacks->add_archive_element) (info,
- abfd,
- name))
+ if (!(*info->callbacks
+ ->add_archive_element) (info, abfd, name, subsbfd))
return FALSE;
*pneeded = TRUE;
return TRUE;
/* Turn the current link symbol into a common
symbol. It is already on the undefs list. */
h->type = bfd_link_hash_common;
- h->u.c.p = bfd_hash_allocate (&info->hash->table,
- sizeof (struct bfd_link_hash_common_entry));
+ h->u.c.p = (struct bfd_link_hash_common_entry *)
+ bfd_hash_allocate (&info->hash->table,
+ sizeof (struct bfd_link_hash_common_entry));
if (h->u.c.p == NULL)
return FALSE;
it if the current link symbol is common. */
if (h->type == bfd_link_hash_undefined)
{
- if (! (*info->callbacks->add_archive_element) (info, abfd, name))
+ if (!(*info->callbacks
+ ->add_archive_element) (info, abfd, name, subsbfd))
return FALSE;
*pneeded = TRUE;
return TRUE;
struct bfd_link_info *info,
bfd_boolean *pneeded)
{
- if (! aout_get_external_symbols (abfd))
+ bfd *oldbfd;
+ bfd_boolean needed;
+
+ if (!aout_get_external_symbols (abfd))
return FALSE;
- if (! aout_link_check_ar_symbols (abfd, info, pneeded))
+ oldbfd = abfd;
+ if (!aout_link_check_ar_symbols (abfd, info, pneeded, &abfd))
return FALSE;
- if (*pneeded)
+ needed = *pneeded;
+ if (needed)
{
- if (! aout_link_add_symbols (abfd, info))
+ /* Potentially, the add_archive_element hook may have set a
+ substitute BFD for us. */
+ if (abfd != oldbfd)
+ {
+ if (!info->keep_memory
+ && !aout_link_free_symbols (oldbfd))
+ return FALSE;
+ if (!aout_get_external_symbols (abfd))
+ return FALSE;
+ }
+ if (!aout_link_add_symbols (abfd, info))
return FALSE;
}
- if (! info->keep_memory || ! *pneeded)
+ if (!info->keep_memory || !needed)
{
- if (! aout_link_free_symbols (abfd))
+ if (!aout_link_free_symbols (abfd))
return FALSE;
}
/* Allocate the structure if it has not already been allocated by a
subclass. */
if (ret == NULL)
- ret = bfd_hash_allocate (table, sizeof (* ret));
+ ret = (struct aout_link_includes_entry *)
+ bfd_hash_allocate (table, sizeof (* ret));
if (ret == NULL)
return NULL;
object. */
static bfd_boolean
-aout_link_write_other_symbol (struct aout_link_hash_entry *h, void * data)
+aout_link_write_other_symbol (struct bfd_hash_entry *bh, void *data)
{
+ struct aout_link_hash_entry *h = (struct aout_link_hash_entry *) bh;
struct aout_final_link_info *finfo = (struct aout_final_link_info *) data;
bfd *output_bfd;
int type;
case bfd_link_hash_undefweak:
type = N_WEAKU;
val = 0;
+ break;
case bfd_link_hash_indirect:
/* We ignore these symbols, since the indirected symbol is
already in the hash table. */
symbol. */
h->indx = -2;
h->written = FALSE;
- if (! aout_link_write_other_symbol (h, (void *) finfo))
+ if (!aout_link_write_other_symbol (&h->root.root, finfo))
return FALSE;
r_index = h->indx;
}
bfd_boolean ok;
size = bfd_get_reloc_size (howto);
- buf = bfd_zmalloc (size);
+ buf = (bfd_byte *) bfd_zmalloc (size);
if (buf == NULL)
return FALSE;
r = MY_relocate_contents (howto, finfo->output_bfd,
howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
+ 16 * r_jmptable + 32 * r_relative);
- BFD_ASSERT (howto_idx < TABLE_SIZE (howto_table_std));
- howto = howto_table_std + howto_idx;
+ if (howto_idx < TABLE_SIZE (howto_table_std))
+ howto = howto_table_std + howto_idx;
+ else
+ howto = NULL;
}
#endif
+ if (howto == NULL)
+ {
+ (*finfo->info->callbacks->einfo)
+ (_("%P: %B: unexpected relocation type\n"), input_bfd);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+
if (relocatable)
{
/* We are generating a relocatable output file, and must
{
h->indx = -2;
h->written = FALSE;
- if (! aout_link_write_other_symbol (h,
- (void *) finfo))
+ if (!aout_link_write_other_symbol (&h->root.root,
+ finfo))
return FALSE;
}
r_index = h->indx;
r_addend = GET_SWORD (input_bfd, rel->r_addend);
- BFD_ASSERT (r_type < TABLE_SIZE (howto_table_ext));
+ if (r_type >= TABLE_SIZE (howto_table_ext))
+ {
+ (*finfo->info->callbacks->einfo)
+ (_("%P: %B: unexpected relocation type\n"), input_bfd);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
if (relocatable)
{
{
h->indx = -2;
h->written = FALSE;
- if (! aout_link_write_other_symbol (h,
- (void *) finfo))
+ if (!aout_link_write_other_symbol (&h->root.root,
+ finfo))
return FALSE;
}
r_index = h->indx;
{
/* This is the first time we have seen this header
file with this set of stabs strings. */
- t = bfd_hash_allocate (&finfo->includes.root,
+ t = (struct aout_link_includes_totals *)
+ bfd_hash_allocate (&finfo->includes.root,
sizeof *t);
if (t == NULL)
return FALSE;
static bfd_boolean
aout_link_input_bfd (struct aout_final_link_info *finfo, bfd *input_bfd)
{
- bfd_size_type sym_count;
-
BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
/* If this is a dynamic object, it may need special handling. */
if (! aout_get_external_symbols (input_bfd))
return FALSE;
- sym_count = obj_aout_external_sym_count (input_bfd);
-
/* Write out the symbols and get a map of the new indices. The map
is placed into finfo->symbol_map. */
if (! aout_link_write_symbols (finfo, input_bfd))
goto error_return;
/* Allocate buffers to hold section contents and relocs. */
- aout_info.contents = bfd_malloc (max_contents_size);
+ aout_info.contents = (bfd_byte *) bfd_malloc (max_contents_size);
aout_info.relocs = bfd_malloc (max_relocs_size);
- aout_info.symbol_map = bfd_malloc (max_sym_count * sizeof (int *));
- aout_info.output_syms = bfd_malloc ((max_sym_count + 1)
- * sizeof (struct external_nlist));
+ aout_info.symbol_map = (int *) bfd_malloc (max_sym_count * sizeof (int));
+ aout_info.output_syms = (struct external_nlist *)
+ bfd_malloc ((max_sym_count + 1) * sizeof (struct external_nlist));
if ((aout_info.contents == NULL && max_contents_size != 0)
|| (aout_info.relocs == NULL && max_relocs_size != 0)
|| (aout_info.symbol_map == NULL && max_sym_count != 0)
h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC",
FALSE, FALSE, FALSE);
if (h != NULL)
- aout_link_write_other_symbol (h, &aout_info);
+ aout_link_write_other_symbol (&h->root.root, &aout_info);
}
/* The most time efficient way to do the link would be to read all
}
/* Write out any symbols that we have not already written out. */
- aout_link_hash_traverse (aout_hash_table (info),
- aout_link_write_other_symbol,
- (void *) &aout_info);
+ bfd_hash_traverse (&info->hash->table,
+ aout_link_write_other_symbol,
+ &aout_info);
/* Now handle any relocs we were asked to create by the linker.
These did not come from any input file. We must do these after
exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
/* Write out the string table, unless there are no symbols. */
+ if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0)
+ goto error_return;
if (abfd->symcount > 0)
{
- if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0
- || ! emit_stringtab (abfd, aout_info.strtab))
+ if (!emit_stringtab (abfd, aout_info.strtab))
goto error_return;
}
- else if (obj_textsec (abfd)->reloc_count == 0
- && obj_datasec (abfd)->reloc_count == 0)
+ else
{
- bfd_byte b;
- file_ptr pos;
+ bfd_byte b[BYTES_IN_WORD];
- b = 0;
- pos = obj_datasec (abfd)->filepos + exec_hdr (abfd)->a_data - 1;
- if (bfd_seek (abfd, pos, SEEK_SET) != 0
- || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
+ memset (b, 0, BYTES_IN_WORD);
+ if (bfd_bwrite (b, (bfd_size_type) BYTES_IN_WORD, abfd) != BYTES_IN_WORD)
goto error_return;
}