/* Perform some initialization for an object. Save results of this
initialization in the BFD. */
-static const bfd_target *
+static bfd_cleanup
som_object_setup (bfd *abfd,
struct som_header *file_hdrp,
struct som_exec_auxhdr *aux_hdrp,
+ current_offset);
obj_som_exec_data (abfd)->system_id = file_hdrp->system_id;
- return abfd->xvec;
+ return _bfd_no_cleanup;
}
/* Convert all of the space and subspace info into BFD sections. Each space
unsigned int total_subspaces = 0;
asection **subspace_sections = NULL;
asection *section;
- bfd_size_type amt;
+ size_t amt;
/* First, read in space names. */
amt = file_hdr->space_strings_size;
- if (amt == (bfd_size_type) -1)
+ if (amt == (size_t) -1)
{
bfd_set_error (bfd_error_no_memory);
goto error_return;
}
- space_strings = bfd_malloc (amt + 1);
- if (space_strings == NULL && amt != 0)
- goto error_return;
-
if (bfd_seek (abfd, current_offset + file_hdr->space_strings_location,
SEEK_SET) != 0)
goto error_return;
- if (bfd_bread (space_strings, amt, abfd) != amt)
+ space_strings = (char *) _bfd_malloc_and_read (abfd, amt + 1, amt);
+ if (space_strings == NULL)
goto error_return;
/* Make sure that the string table is NUL terminated. */
space_strings[amt] = 0;
som_swap_subspace_dictionary_in (&ext_subspace, &subspace);
/* Setup the subspace name string. */
+ if (subspace.name >= file_hdr->space_strings_size)
+ goto error_return;
+
subspace_name = subspace.name + space_strings;
amt = strlen (subspace_name) + 1;
}
/* Now that we've read in all the subspace records, we need to assign
a target index to each subspace. */
- subspace_sections = bfd_malloc2 (total_subspaces, sizeof (asection *));
+ if (_bfd_mul_overflow (total_subspaces, sizeof (asection *), &amt))
+ {
+ bfd_set_error (bfd_error_file_too_big);
+ goto error_return;
+ }
+ subspace_sections = bfd_malloc (amt);
if (subspace_sections == NULL)
goto error_return;
/* Read in a SOM object and make it into a BFD. */
-static const bfd_target *
+static bfd_cleanup
som_object_p (bfd *abfd)
{
struct som_external_header ext_file_hdr;
/* Perform various work in preparation for emitting the fixup stream. */
-static void
+static bfd_boolean
som_prep_for_fixups (bfd *abfd, asymbol **syms, unsigned long num_syms)
{
unsigned long i;
asection *section;
asymbol **sorted_syms;
+ size_t amt;
/* Most SOM relocations involving a symbol have a length which is
dependent on the index of the symbol. So symbols which are
/* Sort a copy of the symbol table, rather than the canonical
output symbol table. */
- sorted_syms = bfd_zalloc2 (abfd, num_syms, sizeof (asymbol *));
+ if (_bfd_mul_overflow (num_syms, sizeof (asymbol *), &amt))
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return FALSE;
+ }
+ sorted_syms = bfd_zalloc (abfd, amt);
+ if (sorted_syms == NULL)
+ return FALSE;
memcpy (sorted_syms, syms, num_syms * sizeof (asymbol *));
qsort (sorted_syms, num_syms, sizeof (asymbol *), compare_syms);
obj_som_sorted_syms (abfd) = sorted_syms;
else
som_symbol_data (sorted_syms[i])->index = i;
}
+ return TRUE;
}
static bfd_boolean
current_offset += strings_size;
/* Do prep work before handling fixups. */
- som_prep_for_fixups (abfd,
- bfd_get_outsymbols (abfd),
- bfd_get_symcount (abfd));
+ if (!som_prep_for_fixups (abfd,
+ bfd_get_outsymbols (abfd),
+ bfd_get_symcount (abfd)))
+ return FALSE;
/* At the end of the file is the fixup stream which starts on a
word boundary. */
struct som_external_symbol_dictionary_record *som_symtab = NULL;
unsigned int i;
bfd_size_type symtab_size;
+ size_t amt;
/* Compute total symbol table size and allocate a chunk of memory
to hold the symbol table as we build it. */
- som_symtab
- = bfd_zmalloc2 (num_syms,
- sizeof (struct som_external_symbol_dictionary_record));
+ if (_bfd_mul_overflow (num_syms,
+ sizeof (struct som_external_symbol_dictionary_record),
+ &amt))
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return FALSE;
+ }
+ som_symtab = bfd_zmalloc (amt);
if (som_symtab == NULL && num_syms != 0)
goto error_return;
/* Everything is ready, seek to the right location and
scribble out the symbol table. */
if (bfd_seek (abfd, symtab_location, SEEK_SET) != 0)
- return FALSE;
+ goto error_return;
symtab_size = num_syms;
symtab_size *= sizeof (struct som_external_symbol_dictionary_record);
}
/* Allocate and read in the string table. */
- amt = obj_som_stringtab_size (abfd);
- stringtab = bfd_zmalloc (amt);
- if (stringtab == NULL)
- return FALSE;
-
if (bfd_seek (abfd, obj_som_str_filepos (abfd), SEEK_SET) != 0)
return FALSE;
-
- if (bfd_bread (stringtab, amt, abfd) != amt)
+ amt = obj_som_stringtab_size (abfd);
+ stringtab = (char *) _bfd_malloc_and_read (abfd, amt, amt);
+ if (stringtab == NULL)
return FALSE;
/* Save our results and return success. */
static unsigned int
som_slurp_symbol_table (bfd *abfd)
{
- int symbol_count = bfd_get_symcount (abfd);
- int symsize = sizeof (struct som_external_symbol_dictionary_record);
+ unsigned int symbol_count = bfd_get_symcount (abfd);
+ size_t symsize = sizeof (struct som_external_symbol_dictionary_record);
char *stringtab;
struct som_external_symbol_dictionary_record *buf = NULL, *bufp, *endbufp;
- som_symbol_type *sym, *symbase;
- bfd_size_type amt;
+ som_symbol_type *sym, *symbase = NULL;
+ size_t amt;
/* Return saved value if it exists. */
if (obj_som_symtab (abfd) != NULL)
stringtab = obj_som_stringtab (abfd);
- symbase = bfd_zmalloc2 (symbol_count, sizeof (som_symbol_type));
- if (symbase == NULL)
- goto error_return;
-
/* Read in the external SOM representation. */
- buf = bfd_malloc2 (symbol_count, symsize);
- if (buf == NULL)
- goto error_return;
+ if (_bfd_mul_overflow (symbol_count, symsize, &amt))
+ {
+ bfd_set_error (bfd_error_file_too_big);
+ goto error_return;
+ }
if (bfd_seek (abfd, obj_som_sym_filepos (abfd), SEEK_SET) != 0)
goto error_return;
- amt = symbol_count;
- amt *= symsize;
- if (bfd_bread (buf, amt, abfd) != amt)
+ buf = (struct som_external_symbol_dictionary_record *)
+ _bfd_malloc_and_read (abfd, amt, amt);
+ if (buf == NULL)
+ goto error_return;
+
+ if (_bfd_mul_overflow (symbol_count, sizeof (som_symbol_type), &amt))
+ {
+ bfd_set_error (bfd_error_file_too_big);
+ goto error_return;
+ }
+ symbase = bfd_zmalloc (amt);
+ if (symbase == NULL)
goto error_return;
/* Iterate over all the symbols and internalize them. */
return (TRUE);
error_return:
+ if (symbase != NULL)
+ free (symbase);
if (buf != NULL)
free (buf);
return FALSE;
unsigned int fixup_stream_size;
arelent *internal_relocs;
unsigned int num_relocs;
- bfd_size_type amt;
+ size_t amt;
fixup_stream_size = som_section_data (section)->reloc_size;
/* If there were no relocations, then there is nothing to do. */
parsed. We must do so now to know how many relocations exist. */
if (section->reloc_count == (unsigned) -1)
{
- amt = fixup_stream_size;
- external_relocs = bfd_malloc (amt);
- if (external_relocs == NULL)
- return FALSE;
/* Read in the external forms. */
- if (bfd_seek (abfd,
- obj_som_reloc_filepos (abfd) + section->rel_filepos,
- SEEK_SET)
- != 0)
+ if (bfd_seek (abfd, obj_som_reloc_filepos (abfd) + section->rel_filepos,
+ SEEK_SET) != 0)
return FALSE;
- if (bfd_bread (external_relocs, amt, abfd) != amt)
+ amt = fixup_stream_size;
+ external_relocs = _bfd_malloc_and_read (abfd, amt, amt);
+ if (external_relocs == NULL)
return FALSE;
/* Let callers know how many relocations found.
if (section->relocation != NULL)
return TRUE;
- internal_relocs = bfd_zalloc2 (abfd, num_relocs, sizeof (arelent));
+ if (_bfd_mul_overflow (num_relocs, sizeof (arelent), &amt))
+ {
+ bfd_set_error (bfd_error_file_too_big);
+ return FALSE;
+ }
+ internal_relocs = bfd_zalloc (abfd, amt);
if (internal_relocs == NULL)
return FALSE;
{
unsigned int i;
unsigned char *hash_table;
- bfd_size_type amt;
+ size_t amt;
file_ptr lst_filepos;
lst_filepos = bfd_tell (abfd) - sizeof (struct som_external_lst_header);
- hash_table = bfd_malloc2 (lst_header->hash_size, 4);
+ /* Read in the hash table. The hash table is an array of 32-bit
+ file offsets which point to the hash chains. */
+ if (_bfd_mul_overflow (lst_header->hash_size, 4, &amt))
+ {
+ bfd_set_error (bfd_error_file_too_big);
+ return FALSE;
+ }
+ hash_table = _bfd_malloc_and_read (abfd, amt, amt);
if (hash_table == NULL && lst_header->hash_size != 0)
goto error_return;
/* Don't forget to initialize the counter! */
*count = 0;
- /* Read in the hash table. The hash table is an array of 32-bit
- file offsets which point to the hash chains. */
- amt = (bfd_size_type) lst_header->hash_size * 4;
- if (bfd_bread ((void *) hash_table, amt, abfd) != amt)
- goto error_return;
-
/* Walk each chain counting the number of symbols found on that particular
chain. */
for (i = 0; i < lst_header->hash_size; i++)
carsym *set = syms[0];
unsigned char *hash_table;
struct som_external_som_entry *som_dict = NULL;
- bfd_size_type amt;
+ size_t amt;
file_ptr lst_filepos;
unsigned int string_loc;
lst_filepos = bfd_tell (abfd) - sizeof (struct som_external_lst_header);
- hash_table = bfd_malloc2 (lst_header->hash_size, 4);
- if (hash_table == NULL && lst_header->hash_size != 0)
- goto error_return;
/* Read in the hash table. The has table is an array of 32bit file offsets
which point to the hash chains. */
- amt = (bfd_size_type) lst_header->hash_size * 4;
- if (bfd_bread ((void *) hash_table, amt, abfd) != amt)
+ if (_bfd_mul_overflow (lst_header->hash_size, 4, &amt))
+ {
+ bfd_set_error (bfd_error_file_too_big);
+ return FALSE;
+ }
+ hash_table = _bfd_malloc_and_read (abfd, amt, amt);
+ if (hash_table == NULL && lst_header->hash_size != 0)
goto error_return;
/* Seek to and read in the SOM dictionary. We will need this to fill
if (bfd_seek (abfd, lst_filepos + lst_header->dir_loc, SEEK_SET) != 0)
goto error_return;
- som_dict = bfd_malloc2 (lst_header->module_count,
- sizeof (struct som_external_som_entry));
+ if (_bfd_mul_overflow (lst_header->module_count,
+ sizeof (struct som_external_som_entry), &amt))
+ {
+ bfd_set_error (bfd_error_file_too_big);
+ goto error_return;
+ }
+ som_dict = (struct som_external_som_entry *)
+ _bfd_malloc_and_read (abfd, amt, amt);
if (som_dict == NULL && lst_header->module_count != 0)
goto error_return;
- amt = lst_header->module_count;
- amt *= sizeof (struct som_external_som_entry);
- if (bfd_bread ((void *) som_dict, amt, abfd) != amt)
- goto error_return;
-
string_loc = lst_header->string_loc;
/* Walk each chain filling in the carsyms as we go along. */
bfd_set_error (bfd_error_no_memory);
goto error_return;
}
- name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
+ name = (char *) _bfd_alloc_and_read (abfd, len + 1, len);
if (!name)
goto error_return;
- if (bfd_bread (name, (bfd_size_type) len, abfd) != len)
- goto error_return;
-
name[len] = 0;
set->name = name;
bfd_set_error (bfd_error_no_memory);
goto error_return;
}
- name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
+ name = (char *) _bfd_alloc_and_read (abfd, len + 1, len);
if (!name)
goto error_return;
-
- if (bfd_bread (name, (bfd_size_type) len, abfd) != len)
- goto error_return;
name[len] = 0;
set->name = name;
unsigned int parsed_size;
struct artdata *ardata = bfd_ardata (abfd);
char nextname[17];
- bfd_size_type amt = 16;
+ size_t amt = 16;
int i = bfd_bread ((void *) nextname, amt, abfd);
/* Special cases. */
/* Initialize the cache and allocate space for the library symbols. */
ardata->cache = 0;
- ardata->symdefs = bfd_alloc2 (abfd, ardata->symdef_count, sizeof (carsym));
+ if (_bfd_mul_overflow (ardata->symdef_count, sizeof (carsym), &amt))
+ {
+ bfd_set_error (bfd_error_file_too_big);
+ return FALSE;
+ }
+ ardata->symdefs = bfd_alloc (abfd, amt);
if (!ardata->symdefs)
return FALSE;
struct som_external_som_entry *som_dict = NULL;
struct som_external_lst_symbol_record **last_hash_entry = NULL;
unsigned int curr_som_offset, som_index = 0;
- bfd_size_type amt;
+ size_t amt;
unsigned int module_count;
unsigned int hash_size;
hash_size = bfd_getb32 (lst.hash_size);
- hash_table = bfd_zmalloc2 (hash_size, 4);
+ if (_bfd_mul_overflow (hash_size, 4, &amt))
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return FALSE;
+ }
+ hash_table = bfd_zmalloc (amt);
if (hash_table == NULL && hash_size != 0)
goto error_return;
module_count = bfd_getb32 (lst.module_count);
- som_dict = bfd_zmalloc2 (module_count, sizeof (struct som_external_som_entry));
+ if (_bfd_mul_overflow (module_count,
+ sizeof (struct som_external_som_entry), &amt))
+ {
+ bfd_set_error (bfd_error_no_memory);
+ goto error_return;
+ }
+ som_dict = bfd_zmalloc (amt);
if (som_dict == NULL && module_count != 0)
goto error_return;
- last_hash_entry
- = bfd_zmalloc2 (hash_size, sizeof (struct som_external_lst_symbol_record *));
+ if (_bfd_mul_overflow (hash_size,
+ sizeof (struct som_external_lst_symbol_record *),
+ &amt))
+ {
+ bfd_set_error (bfd_error_no_memory);
+ goto error_return;
+ }
+ last_hash_entry = bfd_zmalloc (amt);
if (last_hash_entry == NULL && hash_size != 0)
goto error_return;
curr_som_offset = (curr_som_offset + 0x1) & ~0x1;
/* FIXME should be done with buffers just like everything else... */
- lst_syms = bfd_malloc2 (nsyms, sizeof (struct som_external_lst_symbol_record));
+ if (_bfd_mul_overflow (nsyms,
+ sizeof (struct som_external_lst_symbol_record), &amt))
+ {
+ bfd_set_error (bfd_error_no_memory);
+ goto error_return;
+ }
+ lst_syms = bfd_malloc (amt);
if (lst_syms == NULL && nsyms != 0)
goto error_return;
- strings = bfd_malloc ((bfd_size_type) string_size);
+ strings = bfd_malloc (string_size);
if (strings == NULL && string_size != 0)
goto error_return;
}
/* Now scribble out the hash table. */
- amt = (bfd_size_type) hash_size * 4;
+ amt = (size_t) hash_size * 4;
if (bfd_bwrite ((void *) hash_table, amt, abfd) != amt)
goto error_return;
/* Then the SOM dictionary. */
- amt = (bfd_size_type) module_count * sizeof (struct som_external_som_entry);
+ amt = (size_t) module_count * sizeof (struct som_external_som_entry);
if (bfd_bwrite ((void *) som_dict, amt, abfd) != amt)
goto error_return;
/* The library symbols. */
- amt = (bfd_size_type) nsyms * sizeof (struct som_external_lst_symbol_record);
+ amt = (size_t) nsyms * sizeof (struct som_external_lst_symbol_record);
if (bfd_bwrite ((void *) lst_syms, amt, abfd) != amt)
goto error_return;