/* Linker command language support.
- Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
- 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
- Free Software Foundation, Inc.
+ Copyright 1991-2013 Free Software Foundation, Inc.
This file is part of the GNU Binutils.
/* Forward declarations. */
static void exp_init_os (etree_type *);
-static void init_map_userdata (bfd *, asection *, void *);
static lang_input_statement_type *lookup_name (const char *);
static struct bfd_hash_entry *lang_definedness_newfunc
(struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
os_tail = ((lang_output_section_statement_type **)
lang_output_section_statement.tail);
os = lang_enter_output_section_statement (secname, address, normal_section,
- NULL, NULL, NULL, constraint);
+ NULL, NULL, NULL, constraint, 0);
ps = NULL;
if (config.build_constructors && *os_tail == os)
{
lang_memory_region_type *m;
bfd_boolean dis_header_printed = FALSE;
- bfd *p;
LANG_FOR_EACH_INPUT_STATEMENT (file)
{
if (! link_info.reduce_memory_overheads)
{
obstack_begin (&map_obstack, 1000);
- for (p = link_info.input_bfds; p != (bfd *) NULL; p = p->link_next)
- bfd_map_over_sections (p, init_map_userdata, 0);
bfd_link_hash_traverse (link_info.hash, sort_def_symbol, 0);
}
lang_statement_iteration ++;
print_statements ();
}
-static void
-init_map_userdata (bfd *abfd ATTRIBUTE_UNUSED,
- asection *sec,
- void *data ATTRIBUTE_UNUSED)
-{
- fat_section_userdata_type *new_data
- = ((fat_section_userdata_type *) (stat_alloc
- (sizeof (fat_section_userdata_type))));
-
- ASSERT (get_userdata (sec) == NULL);
- get_userdata (sec) = new_data;
- new_data->map_symbol_def_tail = &new_data->map_symbol_def_head;
- new_data->map_symbol_def_count = 0;
-}
-
static bfd_boolean
sort_def_symbol (struct bfd_link_hash_entry *hash_entry,
void *info ATTRIBUTE_UNUSED)
{
- if (hash_entry->type == bfd_link_hash_defined
- || hash_entry->type == bfd_link_hash_defweak)
+ if ((hash_entry->type == bfd_link_hash_defined
+ || hash_entry->type == bfd_link_hash_defweak)
+ && hash_entry->u.def.section->owner != link_info.output_bfd
+ && hash_entry->u.def.section->owner != NULL)
{
- struct fat_user_section_struct *ud;
+ input_section_userdata_type *ud;
struct map_symbol_def *def;
- ud = (struct fat_user_section_struct *)
- get_userdata (hash_entry->u.def.section);
- if (! ud)
+ ud = ((input_section_userdata_type *)
+ get_userdata (hash_entry->u.def.section));
+ if (!ud)
{
- /* ??? What do we have to do to initialize this beforehand? */
- /* The first time we get here is bfd_abs_section... */
- init_map_userdata (0, hash_entry->u.def.section, 0);
- ud = (struct fat_user_section_struct *)
- get_userdata (hash_entry->u.def.section);
+ ud = (input_section_userdata_type *) stat_alloc (sizeof (*ud));
+ get_userdata (hash_entry->u.def.section) = ud;
+ ud->map_symbol_def_tail = &ud->map_symbol_def_head;
+ ud->map_symbol_def_count = 0;
}
- else if (!ud->map_symbol_def_tail)
+ else if (!ud->map_symbol_def_tail)
ud->map_symbol_def_tail = &ud->map_symbol_def_head;
def = (struct map_symbol_def *) obstack_alloc (&map_obstack, sizeof *def);
s->bfd_section->output_section = s->bfd_section;
s->bfd_section->output_offset = 0;
- if (!link_info.reduce_memory_overheads)
- {
- fat_section_userdata_type *new_userdata = (fat_section_userdata_type *)
- stat_alloc (sizeof (fat_section_userdata_type));
- memset (new_userdata, 0, sizeof (fat_section_userdata_type));
- get_userdata (s->bfd_section) = new_userdata;
- }
-
/* If there is a base address, make sure that any sections it might
mention are initialized. */
if (s->addr_tree != NULL)
substitute BFD for us. */
if (!bfd_link_add_symbols (subsbfd, &link_info))
{
- einfo (_("%F%B: could not read symbols: %E\n"), member);
+ einfo (_("%F%B: error adding symbols: %E\n"), member);
loaded = FALSE;
}
}
if (bfd_link_add_symbols (entry->the_bfd, &link_info))
entry->flags.loaded = TRUE;
else
- einfo (_("%F%B: could not read symbols: %E\n"), entry->the_bfd);
+ einfo (_("%F%B: error adding symbols: %E\n"), entry->the_bfd);
return entry->flags.loaded;
}
static void
print_all_symbols (asection *sec)
{
- struct fat_user_section_struct *ud =
- (struct fat_user_section_struct *) get_userdata (sec);
+ input_section_userdata_type *ud
+ = (input_section_userdata_type *) get_userdata (sec);
struct map_symbol_def *def;
struct bfd_link_hash_entry **entries;
unsigned int i;
{
bfd_vma lma = os->lma_region->current;
+ /* When LMA_REGION is the same as REGION, align the LMA
+ as we did for the VMA, possibly including alignment
+ from the bfd section. If a different region, then
+ only align according to the value in the output
+ statement unless specified otherwise. */
+ if (os->lma_region != os->region && !os->align_lma_with_input)
+ section_alignment = os->section_alignment;
if (section_alignment > 0)
lma = align_power (lma, section_alignment);
os->bfd_section->lma = lma;
&& link_info.relro && expld.dataseg.relro_end)
{
/* If DATA_SEGMENT_ALIGN DATA_SEGMENT_RELRO_END pair was seen, try
- to put expld.dataseg.relro on a (common) page boundary. */
- bfd_vma min_base, old_base, relro_end, maxpage;
+ to put expld.dataseg.relro_end on a (common) page boundary. */
+ bfd_vma min_base, relro_end, maxpage;
expld.dataseg.phase = exp_dataseg_relro_adjust;
maxpage = expld.dataseg.maxpagesize;
/* MIN_BASE is the absolute minimum address we are allowed to start the
read-write segment (byte before will be mapped read-only). */
min_base = (expld.dataseg.min_base + maxpage - 1) & ~(maxpage - 1);
- /* OLD_BASE is the address for a feasible minimum address which will
- still not cause a data overlap inside MAXPAGE causing file offset skip
- by MAXPAGE. */
- old_base = expld.dataseg.base;
expld.dataseg.base += (-expld.dataseg.relro_end
& (expld.dataseg.pagesize - 1));
/* Compute the expected PT_GNU_RELRO segment end. */
if (expld.dataseg.relro_end > relro_end)
{
/* The alignment of sections between DATA_SEGMENT_ALIGN
- and DATA_SEGMENT_RELRO_END caused huge padding to be
- inserted at DATA_SEGMENT_RELRO_END. Try to start a bit lower so
- that the section alignments will fit in. */
+ and DATA_SEGMENT_RELRO_END can cause excessive padding to
+ be inserted at DATA_SEGMENT_RELRO_END. Try to start a
+ bit lower so that the section alignments will fit in. */
asection *sec;
unsigned int max_alignment_power = 0;
if (((bfd_vma) 1 << max_alignment_power) < expld.dataseg.pagesize)
{
- if (expld.dataseg.base - (1 << max_alignment_power) < old_base)
- expld.dataseg.base += expld.dataseg.pagesize;
- expld.dataseg.base -= (1 << max_alignment_power);
+ /* Aligning the adjusted base guarantees the padding
+ between sections won't change. This is better than
+ simply subtracting 1 << max_alignment_power which is
+ what we used to do here. */
+ expld.dataseg.base &= ~((1 << max_alignment_power) - 1);
lang_reset_memory_regions ();
one_lang_size_sections_pass (relax, check_regions);
}
etree_type *align,
etree_type *subalign,
etree_type *ebase,
- int constraint)
+ int constraint,
+ int align_with_input)
{
lang_output_section_statement_type *os;
/* Make next things chain into subchain of this. */
push_stat_ptr (&os->children);
+ os->align_lma_with_input = align_with_input == ALIGN_WITH_INPUT;
+ if (os->align_lma_with_input && align != NULL)
+ einfo (_("%F%P:%S: error: align with input and explicit align specified\n"), NULL);
+
os->subsection_alignment =
topower (exp_get_value_int (subalign, -1, "subsection alignment"));
os->section_alignment =
etree_type *size;
lang_enter_output_section_statement (name, overlay_vma, overlay_section,
- 0, overlay_subalign, 0, 0);
+ 0, overlay_subalign, 0, 0, 0);
/* If this is the first section, then base the VMA of future
sections on this one. This will work correctly even if `.' is
projects / deliverable / binutils-gdb.git / blobdiff