/* BFD back-end for PDP-11 a.out binaries.
- Copyright (C) 2001-2021 Free Software Foundation, Inc.
+ Copyright (C) 2001-2023 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
reloc_howto_type howto_table_pdp11[] =
{
/* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */
-HOWTO( 0, 0, 1, 16, false, 0, complain_overflow_signed,0,"16", true, 0x0000ffff,0x0000ffff, false),
-HOWTO( 1, 0, 1, 16, true, 0, complain_overflow_signed,0,"DISP16", true, 0x0000ffff,0x0000ffff, false),
-HOWTO( 2, 0, 2, 32, false, 0, complain_overflow_signed,0,"32", true, 0x0000ffff,0x0000ffff, false),
+HOWTO( 0, 0, 2, 16, false, 0, complain_overflow_dont,0,"16", true, 0x0000ffff,0x0000ffff, false),
+HOWTO( 1, 0, 2, 16, true, 0, complain_overflow_dont,0,"DISP16", true, 0x0000ffff,0x0000ffff, false),
+HOWTO( 2, 0, 4, 32, false, 0, complain_overflow_dont,0,"32", true, 0x0000ffff,0x0000ffff, false),
};
#define TABLE_SIZE(TABLE) (sizeof(TABLE)/sizeof(TABLE[0]))
if (stringsize >= BYTES_IN_LONG)
{
- /* Keep the string count in the buffer for convenience
- when indexing with e_strx. */
amt = stringsize - BYTES_IN_LONG;
if (bfd_bread (strings + BYTES_IN_LONG, amt, abfd) != amt)
{
}
}
/* Ensure that a zero index yields an empty string. */
- strings[0] = '\0';
+ if (stringsize >= BYTES_IN_WORD)
+ memset (strings, 0, BYTES_IN_LONG);
/* Ensure that the string buffer is NUL terminated. */
strings[stringsize] = 0;
if (r_extern) \
{ \
/* Undefined symbol. */ \
- cache_ptr->sym_ptr_ptr = symbols + r_index; \
+ if (symbols != NULL && r_index < bfd_get_symcount (abfd)) \
+ cache_ptr->sym_ptr_ptr = symbols + r_index; \
+ else \
+ cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \
cache_ptr->addend = ad; \
} \
else \
long
NAME (aout, get_reloc_upper_bound) (bfd *abfd, sec_ptr asect)
{
- bfd_size_type count;
-
- if (bfd_get_format (abfd) != bfd_object)
- {
- bfd_set_error (bfd_error_invalid_operation);
- return -1;
- }
+ size_t count, raw;
if (asect->flags & SEC_CONSTRUCTOR)
count = asect->reloc_count;
return -1;
}
- if (count >= LONG_MAX / sizeof (arelent *))
+ if (count >= LONG_MAX / sizeof (arelent *)
+ || _bfd_mul_overflow (count, obj_reloc_entry_size (abfd), &raw))
{
bfd_set_error (bfd_error_file_too_big);
return -1;
}
+ if (!bfd_write_p (abfd))
+ {
+ ufile_ptr filesize = bfd_get_file_size (abfd);
+ if (filesize != 0 && raw > filesize)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return -1;
+ }
+ }
return (count + 1) * sizeof (arelent *);
}
{
asection *o;
- if (bfd_get_format (abfd) != bfd_object)
+ if (bfd_get_format (abfd) != bfd_object
+ || abfd->tdata.aout_data == NULL)
return true;
#define BFCI_FREE(x) do { free (x); x = NULL; } while (0)
+ BFCI_FREE (adata (abfd).line_buf);
BFCI_FREE (obj_aout_symbols (abfd));
-
#ifdef USE_MMAP
obj_aout_external_syms (abfd) = 0;
bfd_free_window (&obj_aout_sym_window (abfd));
r_baserel = (howto->type & 8) != 0;
r_jmptable = (howto->type & 16) != 0;
r_relative = (howto->type & 32) != 0;
- r_length = howto->size;
+ r_length = bfd_log2 (bfd_get_reloc_size (howto));
PUT_WORD (flaginfo->output_bfd, p->offset, srel.r_address);
if (bfd_header_big_endian (flaginfo->output_bfd))