/* BFD back-end for PDP-11 a.out binaries.
- Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 2001-2016 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
#define ARCH_SIZE 16
#undef TARGET_IS_BIG_ENDIAN_P
-#define TARGET_PAGE_SIZE 1024
+#define TARGET_PAGE_SIZE 256
#define SEGMENT__SIZE TARGET_PAGE_SIZE
#define DEFAULT_ARCH bfd_arch_pdp11
#define N_HEADER_IN_TEXT(x) 0
/* There is no flags field. */
-#define N_FLAGS(exec) 0
+#define N_FLAGS(execp) 0
-#define N_SET_FLAGS(exec, flags) do { } while (0)
+#define N_SET_FLAGS(execp, flags) do { } while (0)
#define N_BADMAG(x) (N_MAGIC(x) != OMAGIC \
&& N_MAGIC(x) != NMAGIC \
&& N_MAGIC(x) != ZMAGIC)
#define EXTERNAL_NLIST_SIZE 8
#define N_TXTOFF(x) (EXEC_BYTES_SIZE)
-#define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text)
-#define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data)
-#define N_DRELOFF(x) (N_TRELOFF(x) + (x).a_trsize)
-#define N_SYMOFF(x) (N_DRELOFF(x) + (x).a_drsize)
-#define N_STROFF(x) (N_SYMOFF(x) + (x).a_syms)
+#define N_DATOFF(x) (N_TXTOFF(x) + (x)->a_text)
+#define N_TRELOFF(x) (N_DATOFF(x) + (x)->a_data)
+#define N_DRELOFF(x) (N_TRELOFF(x) + (x)->a_trsize)
+#define N_SYMOFF(x) (N_DRELOFF(x) + (x)->a_drsize)
+#define N_STROFF(x) (N_SYMOFF(x) + (x)->a_syms)
#define WRITE_HEADERS(abfd, execp) pdp11_aout_write_headers (abfd, execp)
#define TABLE_SIZE(TABLE) (sizeof(TABLE)/sizeof(TABLE[0]))
-static bfd_boolean aout_link_check_archive_element (bfd *, struct bfd_link_info *, bfd_boolean *);
+static bfd_boolean aout_link_check_archive_element (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, const char *, bfd_boolean *);
static bfd_boolean aout_link_add_object_symbols (bfd *, struct bfd_link_info *);
static bfd_boolean aout_link_add_symbols (bfd *, struct bfd_link_info *);
static bfd_boolean aout_link_write_symbols (struct aout_final_link_info *, bfd *);
pdp11_aout_write_headers (bfd *abfd, struct internal_exec *execp)
{
struct external_exec exec_bytes;
- bfd_size_type text_size;
- file_ptr text_end;
if (adata(abfd).magic == undecided_magic)
- NAME (aout, adjust_sizes_and_vmas) (abfd, &text_size, &text_end);
+ NAME (aout, adjust_sizes_and_vmas) (abfd);
execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE;
execp->a_entry = bfd_get_start_address (abfd);
if (bfd_get_outsymbols (abfd) != NULL
&& bfd_get_symcount (abfd) != 0)
{
- if (bfd_seek (abfd, (file_ptr) (N_SYMOFF(*execp)), SEEK_SET) != 0)
+ if (bfd_seek (abfd, (file_ptr) (N_SYMOFF (execp)), SEEK_SET) != 0)
return FALSE;
if (! NAME (aout, write_syms) (abfd))
if (obj_textsec (abfd)->reloc_count > 0
|| obj_datasec (abfd)->reloc_count > 0)
{
- if (bfd_seek (abfd, (file_ptr) (N_TRELOFF(*execp)), SEEK_SET) != 0
+ if (bfd_seek (abfd, (file_ptr) (N_TRELOFF (execp)), SEEK_SET) != 0
|| !NAME (aout, squirt_out_relocs) (abfd, obj_textsec (abfd))
- || bfd_seek (abfd, (file_ptr) (N_DRELOFF(*execp)), SEEK_SET) != 0
+ || bfd_seek (abfd, (file_ptr) (N_DRELOFF (execp)), SEEK_SET) != 0
|| !NAME (aout, squirt_out_relocs) (abfd, obj_datasec (abfd)))
return FALSE;
}
will normally have been done by set_section_contents, but only if
there actually are some section contents. */
if (! abfd->output_has_begun)
- {
- bfd_size_type text_size;
- file_ptr text_end;
-
- NAME (aout, adjust_sizes_and_vmas) (abfd, &text_size, &text_end);
- }
+ NAME (aout, adjust_sizes_and_vmas) (abfd);
obj_reloc_entry_size (abfd) = RELOC_SIZE;
/* Setting of EXEC_P has been deferred to the bottom of this function. */
if (execp->a_syms)
abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
- if (N_DYNAMIC(*execp))
+ if (N_DYNAMIC (execp))
abfd->flags |= DYNAMIC;
- if (N_MAGIC (*execp) == ZMAGIC)
+ if (N_MAGIC (execp) == ZMAGIC)
{
abfd->flags |= D_PAGED | WP_TEXT;
adata (abfd).magic = z_magic;
}
- else if (N_MAGIC (*execp) == NMAGIC)
+ else if (N_MAGIC (execp) == NMAGIC)
{
abfd->flags |= WP_TEXT;
adata (abfd).magic = n_magic;
}
- else if (N_MAGIC (*execp) == OMAGIC)
+ else if (N_MAGIC (execp) == OMAGIC)
adata (abfd).magic = o_magic;
else
{
in by the callback: */
struct exec *execp = exec_hdr (abfd);
- obj_textsec (abfd)->size = N_TXTSIZE(*execp);
+ obj_textsec (abfd)->size = N_TXTSIZE (execp);
/* Data and bss are already filled in since they're so standard. */
/* The virtual memory addresses of the sections. */
- obj_textsec (abfd)->vma = N_TXTADDR(*execp);
- obj_datasec (abfd)->vma = N_DATADDR(*execp);
- obj_bsssec (abfd)->vma = N_BSSADDR(*execp);
+ obj_textsec (abfd)->vma = N_TXTADDR (execp);
+ obj_datasec (abfd)->vma = N_DATADDR (execp);
+ obj_bsssec (abfd)->vma = N_BSSADDR (execp);
/* The file offsets of the sections. */
- obj_textsec (abfd)->filepos = N_TXTOFF(*execp);
- obj_datasec (abfd)->filepos = N_DATOFF(*execp);
+ obj_textsec (abfd)->filepos = N_TXTOFF (execp);
+ obj_datasec (abfd)->filepos = N_DATOFF (execp);
/* The file offsets of the relocation info. */
- obj_textsec (abfd)->rel_filepos = N_TRELOFF(*execp);
- obj_datasec (abfd)->rel_filepos = N_DRELOFF(*execp);
+ obj_textsec (abfd)->rel_filepos = N_TRELOFF (execp);
+ obj_datasec (abfd)->rel_filepos = N_DRELOFF (execp);
/* The file offsets of the string table and symbol table. */
- obj_str_filepos (abfd) = N_STROFF (*execp);
- obj_sym_filepos (abfd) = N_SYMOFF (*execp);
+ obj_str_filepos (abfd) = N_STROFF (execp);
+ obj_sym_filepos (abfd) = N_SYMOFF (execp);
/* Determine the architecture and machine type of the object file. */
abfd->obj_arch = bfd_arch_obscure;
execp->a_text = obj_textsec (abfd)->size;
execp->a_data = obj_datasec (abfd)->size;
execp->a_bss = obj_bsssec (abfd)->size;
- N_SET_MAGIC (*execp, OMAGIC);
+ N_SET_MAGIC (execp, OMAGIC);
}
static void
execp->a_text = obj_textsec(abfd)->size;
if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted)))
execp->a_text += adata(abfd).exec_bytes_size;
- N_SET_MAGIC (*execp, ZMAGIC);
+ N_SET_MAGIC (execp, ZMAGIC);
/* Spec says data section should be rounded up to page boundary. */
obj_datasec(abfd)->size
execp->a_text = obj_textsec(abfd)->size;
execp->a_data = obj_datasec(abfd)->size;
execp->a_bss = obj_bsssec(abfd)->size;
- N_SET_MAGIC (*execp, NMAGIC);
+ N_SET_MAGIC (execp, NMAGIC);
}
bfd_boolean
-NAME (aout, adjust_sizes_and_vmas) (bfd *abfd,
- bfd_size_type *text_size,
- file_ptr * text_end ATTRIBUTE_UNUSED)
+NAME (aout, adjust_sizes_and_vmas) (bfd *abfd)
{
struct internal_exec *execp = exec_hdr (abfd);
align_power(obj_textsec(abfd)->size,
obj_textsec(abfd)->alignment_power);
- *text_size = obj_textsec (abfd)->size;
/* Rule (heuristic) for when to pad to a new page. Note that there
are (at least) two ways demand-paged (ZMAGIC) files have been
handled. Most Berkeley-based systems start the text segment at
file_ptr offset,
bfd_size_type count)
{
- file_ptr text_end;
- bfd_size_type text_size;
-
if (! abfd->output_has_begun)
{
- if (! NAME (aout, adjust_sizes_and_vmas) (abfd, & text_size, & text_end))
+ if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
return FALSE;
}
if (section != obj_textsec (abfd)
&& section != obj_datasec (abfd))
{
- (*_bfd_error_handler)
+ _bfd_error_handler
("%s: can not represent section `%s' in a.out object file format",
bfd_get_filename (abfd), bfd_get_section_name (abfd, section));
bfd_set_error (bfd_error_nonrepresentable_section);
if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
|| bfd_bwrite (location, count, abfd) != count)
return FALSE;
+
+ /* If necessary, pad the section to its aligned size. */
+ if ((section == obj_datasec (abfd)
+ || section == obj_textsec (abfd))
+ && count < section->size
+ && (bfd_seek (abfd, section->filepos + offset + section->size - 1, SEEK_SET) != 0
+ || bfd_bwrite ("", 1, abfd) != 1))
+ return FALSE;
}
return TRUE;
count = exec_hdr (abfd)->a_syms / EXTERNAL_NLIST_SIZE;
+ /* PR 17512: file: 011f5a08. */
+ if (count == 0)
+ {
+ obj_aout_external_syms (abfd) = NULL;
+ obj_aout_external_sym_count (abfd) = count;
+ return TRUE;
+ }
+
#ifdef USE_MMAP
if (! bfd_get_file_window (abfd, obj_sym_filepos (abfd),
exec_hdr (abfd)->a_syms,
{
/* This case occurs, e.g., for the *DEBUG* section of a COFF
file. */
- (*_bfd_error_handler)
+ _bfd_error_handler
("%B: can not represent section for symbol `%s' in a.out object file format",
abfd, cache_ptr->name != NULL ? cache_ptr->name : "*unknown*");
bfd_set_error (bfd_error_nonrepresentable_section);
sym_pointer->e_type[0] = N_UNDF | N_EXT;
else
{
- (*_bfd_error_handler)
+ _bfd_error_handler
("%B: can not represent section `%A' in a.out object file format",
abfd, sec);
bfd_set_error (bfd_error_nonrepresentable_section);
bfd_boolean
NAME (aout, find_nearest_line) (bfd *abfd,
- asection *section,
asymbol **symbols,
+ asection *section,
bfd_vma offset,
const char **filename_ptr,
const char **functionname_ptr,
- unsigned int *line_ptr)
+ unsigned int *line_ptr,
+ unsigned int *discriminator_ptr)
{
/* Run down the file looking for the filename, function and linenumber. */
asymbol **p;
*filename_ptr = abfd->filename;
*functionname_ptr = 0;
*line_ptr = 0;
+ if (discriminator_ptr)
+ *discriminator_ptr = 0;
if (symbols != NULL)
{
struct aout_link_hash_table *ret;
bfd_size_type amt = sizeof (struct aout_link_hash_table);
- ret = bfd_alloc (abfd, amt);
+ ret = bfd_malloc (amt);
if (ret == NULL)
return NULL;
if (! NAME (aout, link_hash_table_init) (ret, abfd,
However, it might be correct. */
if (!(*info->callbacks
->add_archive_element) (info, abfd, name, subsbfd))
- return FALSE;
+ continue;
*pneeded = TRUE;
return TRUE;
}
static bfd_boolean
aout_link_check_archive_element (bfd *abfd,
struct bfd_link_info *info,
+ struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED,
+ const char *name ATTRIBUTE_UNUSED,
bfd_boolean *pneeded)
{
bfd *oldbfd;
case bfd_link_hash_undefweak:
type = N_WEAKU;
val = 0;
+ /* Fall through. */
case bfd_link_hash_indirect:
case bfd_link_hash_warning:
/* FIXME: Ignore these for now. The circumstances under which
}
else
{
- if (! ((*flaginfo->info->callbacks->unattached_reloc)
- (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0)))
- return FALSE;
+ (*flaginfo->info->callbacks->unattached_reloc)
+ (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0);
r_index = 0;
}
}
size = bfd_get_reloc_size (howto);
buf = bfd_zmalloc (size);
- if (buf == NULL)
+ if (buf == NULL && size != 0)
return FALSE;
r = MY_relocate_contents (howto, flaginfo->output_bfd,
pr->addend, buf);
case bfd_reloc_outofrange:
abort ();
case bfd_reloc_overflow:
- if (! ((*flaginfo->info->callbacks->reloc_overflow)
- (flaginfo->info, NULL,
- (p->type == bfd_section_reloc_link_order
- ? bfd_section_name (flaginfo->output_bfd,
- pr->u.section)
- : pr->u.name),
- howto->name, pr->addend, NULL,
- (asection *) NULL, (bfd_vma) 0)))
- {
- free (buf);
- return FALSE;
- }
+ (*flaginfo->info->callbacks->reloc_overflow)
+ (flaginfo->info, NULL,
+ (p->type == bfd_section_reloc_link_order
+ ? bfd_section_name (flaginfo->output_bfd,
+ pr->u.section)
+ : pr->u.name),
+ howto->name, pr->addend, NULL,
+ (asection *) NULL, (bfd_vma) 0);
break;
}
ok = bfd_set_section_contents (flaginfo->output_bfd, o,
BFD_ASSERT (input_bfd->xvec->header_byteorder
== output_bfd->xvec->header_byteorder);
- relocatable = flaginfo->info->relocatable;
+ relocatable = bfd_link_relocatable (flaginfo->info);
syms = obj_aout_external_syms (input_bfd);
strings = obj_aout_external_strings (input_bfd);
sym_hashes = obj_aout_sym_hashes (input_bfd);
name = strings + GET_WORD (input_bfd,
syms[r_index].e_strx);
- if (! ((*flaginfo->info->callbacks->unattached_reloc)
- (flaginfo->info, name, input_bfd, input_section,
- r_addr)))
- return FALSE;
+ (*flaginfo->info->callbacks->unattached_reloc)
+ (flaginfo->info, name, input_bfd, input_section,
+ r_addr);
r_index = 0;
}
}
/* Now warn if a global symbol is undefined. We could not
do this earlier, because check_dynamic_reloc might want
to skip this reloc. */
- if (hundef && ! flaginfo->info->shared)
+ if (hundef && ! bfd_link_pic (flaginfo->info))
{
const char *name;
name = h->root.root.string;
else
name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
- if (! ((*flaginfo->info->callbacks->undefined_symbol)
- (flaginfo->info, name, input_bfd, input_section,
- r_addr, TRUE)))
- return FALSE;
+ (*flaginfo->info->callbacks->undefined_symbol)
+ (flaginfo->info, name, input_bfd, input_section,
+ r_addr, TRUE);
}
r = MY_final_link_relocate (howto,
s = aout_reloc_type_to_section (input_bfd, r_type);
name = bfd_section_name (input_bfd, s);
}
- if (! ((*flaginfo->info->callbacks->reloc_overflow)
- (flaginfo->info, (h ? &h->root : NULL), name,
- howto->name, (bfd_vma) 0, input_bfd,
- input_section, r_addr)))
- return FALSE;
+ (*flaginfo->info->callbacks->reloc_overflow)
+ (flaginfo->info, (h ? &h->root : NULL), name, howto->name,
+ (bfd_vma) 0, input_bfd, input_section, r_addr);
}
break;
}
/* If we are producing relocatable output, the relocs were
modified, and we now write them out. */
- if (flaginfo->info->relocatable && rel_size > 0)
+ if (bfd_link_relocatable (flaginfo->info) && rel_size > 0)
{
if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0)
return FALSE;
/* Do the final link step. This is called on the output BFD. The
INFO structure should point to a list of BFDs linked through the
- link_next field which can be used to find each BFD which takes part
+ link.next field which can be used to find each BFD which takes part
in the output. Also, each section in ABFD should point to a list
of bfd_link_order structures which list all the input sections for
the output section. */
bfd_size_type max_contents_size;
bfd_size_type max_relocs_size;
bfd_size_type max_sym_count;
- bfd_size_type text_size;
- file_ptr text_end;
struct bfd_link_order *p;
asection *o;
bfd_boolean have_link_order_relocs;
- if (info->shared)
+ if (bfd_link_pic (info))
abfd->flags |= DYNAMIC;
aout_info.info = info;
max_contents_size = 0;
max_relocs_size = 0;
max_sym_count = 0;
- for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
+ for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
{
size_t sz;
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
{
if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
{
and call get_reloc_upper_bound and canonicalize_reloc to
work out the number of relocs needed, and then multiply
by the reloc size. */
- (*_bfd_error_handler)
+ _bfd_error_handler
("%s: relocatable link from %s to %s not supported",
bfd_get_filename (abfd),
sub->xvec->name, abfd->xvec->name);
}
}
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
{
if (obj_textsec (abfd) != NULL)
trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd)
/* Adjust the section sizes and vmas according to the magic number.
This sets a_text, a_data and a_bss in the exec_hdr and sets the
filepos for each section. */
- if (! NAME (aout, adjust_sizes_and_vmas) (abfd, &text_size, &text_end))
+ if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
goto error_return;
/* The relocation and symbol file positions differ among a.out
We use the output_has_begun field of the input BFDs to see
whether we have already handled it. */
- for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
+ for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
sub->output_has_begun = FALSE;
/* Mark all sections which are to be included in the link. This
projects / thirdparty / binutils-gdb.git / blobdiff