/* 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.
static lang_statement_list_type *stat_save[10];
static lang_statement_list_type **stat_save_ptr = &stat_save[0];
static struct unique_sections *unique_section_list;
-static bfd_boolean ldlang_sysrooted_script = FALSE;
/* Forward declarations. */
static void exp_init_os (etree_type *);
lang_statement_list_type input_file_chain;
struct bfd_sym_chain entry_symbol = { NULL, NULL };
const char *entry_section = ".text";
+struct lang_input_statement_flags input_flags;
bfd_boolean entry_from_cmdline;
bfd_boolean undef_from_cmdline;
bfd_boolean lang_has_input_file = FALSE;
bfd_boolean delete_output_file_on_failure = FALSE;
struct lang_phdr *lang_phdr_list;
struct lang_nocrossrefs *nocrossref_list;
-bfd_boolean missing_file = FALSE;
/* Functions that traverse the linker script and might evaluate
DEFINED() need to increment this. */
{
struct name_list *list_tmp;
- /* Propagate the section_flag_info from the wild statement to the section. */
- s->section_flag_info = ptr->section_flag_list;
-
/* Don't process sections from files which were excluded. */
for (list_tmp = sec->spec.exclude_name_list;
list_tmp;
return;
}
- (*callback) (ptr, sec, s, file, data);
+ (*callback) (ptr, sec, s, ptr->section_flag_list, file, data);
}
/* Lowest common denominator routine that can handle everything correctly,
{
sec = ptr->section_list;
if (sec == NULL)
- (*callback) (ptr, sec, s, file, data);
+ (*callback) (ptr, sec, s, ptr->section_flag_list, file, data);
while (sec != NULL)
{
decimal numerical value of the init_priority attribute.
The order of execution in .init_array is forward and
.fini_array is backward.
- 2: .ctors.NNNN/.ctors.NNNN: Where NNNN is 65535 minus the
+ 2: .ctors.NNNN/.dtors.NNNN: Where NNNN is 65535 minus the
decimal numerical value of the init_priority attribute.
The order of execution in .ctors is backward and .dtors
is forward.
output_section_callback_fast (lang_wild_statement_type *ptr,
struct wildcard_list *sec,
asection *section,
+ struct flag_info *sflag_list ATTRIBUTE_UNUSED,
lang_input_statement_type *file,
void *output)
{
if (tree->left)
output_section_callback_tree_to_list (ptr, tree->left, output);
- lang_add_section (&ptr->children, tree->section,
+ lang_add_section (&ptr->children, tree->section, NULL,
(lang_output_section_statement_type *) output);
if (tree->right)
callback_t callback,
void *data)
{
- if (file->just_syms_flag)
+ if (file->flags.just_syms)
return;
(*ptr->walk_wild_section_handler) (ptr, file, callback, data);
if (member->usrdata != NULL)
{
walk_wild_section (s,
- (lang_input_statement_type *) member->usrdata,
- callback, data);
+ (lang_input_statement_type *) member->usrdata,
+ callback, data);
}
member = bfd_openr_next_archived_file (f->the_bfd, member);
{
lang_input_statement_type *p;
+ lang_has_input_file = TRUE;
+
if (add_to_list)
p = (lang_input_statement_type *) new_stat (lang_input_statement, stat_ptr);
else
{
p = (lang_input_statement_type *)
- stat_alloc (sizeof (lang_input_statement_type));
+ stat_alloc (sizeof (lang_input_statement_type));
p->header.type = lang_input_statement_enum;
p->header.next = NULL;
}
- lang_has_input_file = TRUE;
+ memset (&p->the_bfd, 0,
+ sizeof (*p) - offsetof (lang_input_statement_type, the_bfd));
p->target = target;
- p->sysrooted = FALSE;
+ p->flags.dynamic = input_flags.dynamic;
+ p->flags.add_DT_NEEDED_for_dynamic = input_flags.add_DT_NEEDED_for_dynamic;
+ p->flags.add_DT_NEEDED_for_regular = input_flags.add_DT_NEEDED_for_regular;
+ p->flags.whole_archive = input_flags.whole_archive;
+ p->flags.sysrooted = input_flags.sysrooted;
if (file_type == lang_input_file_is_l_enum
&& name[0] == ':' && name[1] != '\0')
{
case lang_input_file_is_symbols_only_enum:
p->filename = name;
- p->maybe_archive = FALSE;
- p->real = TRUE;
p->local_sym_name = name;
- p->just_syms_flag = TRUE;
- p->search_dirs_flag = FALSE;
+ p->flags.real = TRUE;
+ p->flags.just_syms = TRUE;
break;
case lang_input_file_is_fake_enum:
p->filename = name;
- p->maybe_archive = FALSE;
- p->real = FALSE;
p->local_sym_name = name;
- p->just_syms_flag = FALSE;
- p->search_dirs_flag = FALSE;
break;
case lang_input_file_is_l_enum:
- p->maybe_archive = TRUE;
p->filename = name;
- p->real = TRUE;
p->local_sym_name = concat ("-l", name, (const char *) NULL);
- p->just_syms_flag = FALSE;
- p->search_dirs_flag = TRUE;
+ p->flags.maybe_archive = TRUE;
+ p->flags.real = TRUE;
+ p->flags.search_dirs = TRUE;
break;
case lang_input_file_is_marker_enum:
p->filename = name;
- p->maybe_archive = FALSE;
- p->real = FALSE;
p->local_sym_name = name;
- p->just_syms_flag = FALSE;
- p->search_dirs_flag = TRUE;
+ p->flags.search_dirs = TRUE;
break;
case lang_input_file_is_search_file_enum:
- p->sysrooted = ldlang_sysrooted_script;
p->filename = name;
- p->maybe_archive = FALSE;
- p->real = TRUE;
p->local_sym_name = name;
- p->just_syms_flag = FALSE;
- p->search_dirs_flag = TRUE;
+ p->flags.real = TRUE;
+ p->flags.search_dirs = TRUE;
break;
case lang_input_file_is_file_enum:
p->filename = name;
- p->maybe_archive = FALSE;
- p->real = TRUE;
p->local_sym_name = name;
- p->just_syms_flag = FALSE;
- p->search_dirs_flag = FALSE;
+ p->flags.real = TRUE;
break;
default:
FAIL ();
}
- p->the_bfd = NULL;
- p->next_real_file = NULL;
- p->next = NULL;
- p->dynamic = config.dynamic_link;
- p->add_DT_NEEDED_for_dynamic = add_DT_NEEDED_for_dynamic;
- p->add_DT_NEEDED_for_regular = add_DT_NEEDED_for_regular;
- p->whole_archive = whole_archive;
- p->loaded = FALSE;
- p->missing_file = FALSE;
-#ifdef ENABLE_PLUGINS
- p->claimed = FALSE;
- p->claim_archive = FALSE;
- p->reload = FALSE;
-#endif /* ENABLE_PLUGINS */
lang_statement_append (&input_file_chain,
(lang_statement_union_type *) p,
if (entry == NULL)
{
entry = (struct bfd_hash_entry *) bfd_hash_allocate (table,
- sizeof (*ret));
+ sizeof (*ret));
if (entry == NULL)
return entry;
}
void
lang_finish (void)
{
+ bfd_link_hash_table_free (link_info.output_bfd, link_info.hash);
+ bfd_hash_table_free (&lang_definedness_table);
output_section_statement_table_free ();
}
for (r = lang_memory_region_list; r != NULL; r = r->next)
for (n = &r->name_list; n != NULL; n = n->next)
if (strcmp (n->name, name) == 0)
- {
- if (create)
- einfo (_("%P:%S: warning: redeclaration of memory region `%s'\n"),
- NULL, name);
- return r;
- }
+ {
+ if (create)
+ einfo (_("%P:%S: warning: redeclaration of memory region `%s'\n"),
+ NULL, name);
+ return r;
+ }
if (!create && strcmp (name, DEFAULT_MEMORY_REGION))
einfo (_("%P:%S: warning: memory region `%s' not declared\n"),
for (r = lang_memory_region_list; r != NULL; r = r->next)
for (n = &r->name_list; n != NULL; n = n->next)
{
- if (region == NULL && strcmp (n->name, region_name) == 0)
- region = r;
- if (strcmp (n->name, alias) == 0)
- einfo (_("%F%P:%S: error: redefinition of memory region "
- "alias `%s'\n"),
- NULL, alias);
+ if (region == NULL && strcmp (n->name, region_name) == 0)
+ region = r;
+ if (strcmp (n->name, alias) == 0)
+ einfo (_("%F%P:%S: error: redefinition of memory region "
+ "alias `%s'\n"),
+ NULL, alias);
}
/* Check if the target region exists. */
if (region == NULL)
einfo (_("%F%P:%S: error: memory region `%s' "
- "for alias `%s' does not exist\n"),
- NULL, region_name, alias);
+ "for alias `%s' does not exist\n"),
+ NULL, region_name, alias);
/* Add alias to region name list. */
n = (lang_memory_region_name *) stat_alloc (sizeof (lang_memory_region_name));
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)
if (*ps == '\0')
{
char *symname;
- etree_type *e_align;
symname = (char *) xmalloc (ps - secname + sizeof "__start_" + 1);
symname[0] = bfd_get_symbol_leading_char (link_info.output_bfd);
sprintf (symname + (symname[0] != 0), "__start_%s", secname);
- e_align = exp_unop (ALIGN_K,
- exp_intop ((bfd_vma) 1 << s->alignment_power));
- lang_add_assignment (exp_assign (".", e_align));
lang_add_assignment (exp_provide (symname,
- exp_unop (ABSOLUTE,
- exp_nameop (NAME, ".")),
+ exp_nameop (NAME, "."),
FALSE));
}
}
if (add_child == NULL)
add_child = &os->children;
- lang_add_section (add_child, s, os);
+ lang_add_section (add_child, s, NULL, os);
if (after && (s->flags & (SEC_LOAD | SEC_ALLOC)) != 0)
{
asection *s;
if ((file->the_bfd->flags & (BFD_LINKER_CREATED | DYNAMIC)) != 0
- || file->just_syms_flag)
+ || file->flags.just_syms)
continue;
for (s = file->the_bfd->sections; s != NULL; s = s->next)
struct map_symbol_def *def;
ud = (struct fat_user_section_struct *)
- get_userdata (hash_entry->u.def.section);
+ 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);
+ get_userdata (hash_entry->u.def.section);
}
else if (!ud->map_symbol_def_tail)
ud->map_symbol_def_tail = &ud->map_symbol_def_head;
if (!link_info.reduce_memory_overheads)
{
fat_section_userdata_type *new_userdata = (fat_section_userdata_type *)
- stat_alloc (sizeof (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 we are only reading symbols from this object, then we want to
discard all sections. */
- if (entry->just_syms_flag)
+ if (entry->flags.just_syms)
{
bfd_link_just_syms (abfd, sec, &link_info);
return;
foo.o(.text, .data). */
/* Add SECTION to the output section OUTPUT. Do this by creating a
- lang_input_section statement which is placed at PTR. FILE is the
- input file which holds SECTION. */
+ lang_input_section statement which is placed at PTR. */
void
lang_add_section (lang_statement_list_type *ptr,
asection *section,
+ struct flag_info *sflag_info,
lang_output_section_statement_type *output)
{
flagword flags = section->flags;
- struct flag_info *sflag_info = section->section_flag_info;
bfd_boolean discard;
lang_input_section_type *new_section;
if (sflag_info)
{
- if (sflag_info->flags_initialized == FALSE)
- bfd_lookup_section_flags (&link_info, sflag_info);
+ bfd_boolean keep;
- if (sflag_info->only_with_flags != 0
- && sflag_info->not_with_flags != 0
- && ((sflag_info->not_with_flags & flags) != 0
- || (sflag_info->only_with_flags & flags)
- != sflag_info->only_with_flags))
- return;
-
- if (sflag_info->only_with_flags != 0
- && (sflag_info->only_with_flags & flags)
- != sflag_info->only_with_flags)
- return;
-
- if (sflag_info->not_with_flags != 0
- && (sflag_info->not_with_flags & flags) != 0)
+ keep = bfd_lookup_section_flags (&link_info, sflag_info, section);
+ if (!keep)
return;
}
/* Here either the files are not sorted by name, or we are
looking at the sections for this file. */
- if (sec != NULL && sec->spec.sorted != none)
+ if (sec != NULL
+ && sec->spec.sorted != none
+ && sec->spec.sorted != by_none)
if (compare_section (sec->spec.sorted, section, ls->section) < 0)
break;
}
output_section_callback (lang_wild_statement_type *ptr,
struct wildcard_list *sec,
asection *section,
+ struct flag_info *sflag_info,
lang_input_statement_type *file,
void *output)
{
of the current list. */
if (before == NULL)
- lang_add_section (&ptr->children, section, os);
+ lang_add_section (&ptr->children, section, sflag_info, os);
else
{
lang_statement_list_type list;
lang_statement_union_type **pp;
lang_list_init (&list);
- lang_add_section (&list, section, os);
+ lang_add_section (&list, section, sflag_info, os);
/* If we are discarding the section, LIST.HEAD will
be NULL. */
check_section_callback (lang_wild_statement_type *ptr ATTRIBUTE_UNUSED,
struct wildcard_list *sec ATTRIBUTE_UNUSED,
asection *section,
+ struct flag_info *sflag_info ATTRIBUTE_UNUSED,
lang_input_statement_type *file ATTRIBUTE_UNUSED,
void *output)
{
/* If we have already added this file, or this file is not real
don't add this file. */
- if (search->loaded || !search->real)
+ if (search->flags.loaded || !search->flags.real)
return search;
if (! load_symbols (search, NULL))
{
char **matching;
- if (entry->loaded)
+ if (entry->flags.loaded)
return TRUE;
ldfile_open_file (entry);
/* Do not process further if the file was missing. */
- if (entry->missing_file)
+ if (entry->flags.missing_file)
return TRUE;
if (! bfd_check_format (entry->the_bfd, bfd_archive)
&& ! bfd_check_format_matches (entry->the_bfd, bfd_object, &matching))
{
bfd_error_type err;
- bfd_boolean save_ldlang_sysrooted_script;
- bfd_boolean save_add_DT_NEEDED_for_regular;
- bfd_boolean save_add_DT_NEEDED_for_dynamic;
- bfd_boolean save_whole_archive;
+ struct lang_input_statement_flags save_flags;
+ extern FILE *yyin;
err = bfd_get_error ();
entry->the_bfd = NULL;
/* Try to interpret the file as a linker script. */
+ save_flags = input_flags;
ldfile_open_command_file (entry->filename);
push_stat_ptr (place);
- save_ldlang_sysrooted_script = ldlang_sysrooted_script;
- ldlang_sysrooted_script = entry->sysrooted;
- save_add_DT_NEEDED_for_regular = add_DT_NEEDED_for_regular;
- add_DT_NEEDED_for_regular = entry->add_DT_NEEDED_for_regular;
- save_add_DT_NEEDED_for_dynamic = add_DT_NEEDED_for_dynamic;
- add_DT_NEEDED_for_dynamic = entry->add_DT_NEEDED_for_dynamic;
- save_whole_archive = whole_archive;
- whole_archive = entry->whole_archive;
+ input_flags.add_DT_NEEDED_for_regular
+ = entry->flags.add_DT_NEEDED_for_regular;
+ input_flags.add_DT_NEEDED_for_dynamic
+ = entry->flags.add_DT_NEEDED_for_dynamic;
+ input_flags.whole_archive = entry->flags.whole_archive;
+ input_flags.dynamic = entry->flags.dynamic;
ldfile_assumed_script = TRUE;
parser_input = input_script;
- /* We want to use the same -Bdynamic/-Bstatic as the one for
- ENTRY. */
- config.dynamic_link = entry->dynamic;
yyparse ();
ldfile_assumed_script = FALSE;
- ldlang_sysrooted_script = save_ldlang_sysrooted_script;
- add_DT_NEEDED_for_regular = save_add_DT_NEEDED_for_regular;
- add_DT_NEEDED_for_dynamic = save_add_DT_NEEDED_for_dynamic;
- whole_archive = save_whole_archive;
+ /* missing_file is sticky. sysrooted will already have been
+ restored when seeing EOF in yyparse, but no harm to restore
+ again. */
+ save_flags.missing_file |= input_flags.missing_file;
+ input_flags = save_flags;
pop_stat_ptr ();
+ fclose (yyin);
+ yyin = NULL;
+ entry->flags.loaded = TRUE;
return TRUE;
}
case bfd_object:
#ifdef ENABLE_PLUGINS
- if (!entry->reload)
+ if (!entry->flags.reload)
#endif
ldlang_add_file (entry);
- if (trace_files || trace_file_tries)
+ if (trace_files || verbose)
info_msg ("%I\n", entry);
break;
case bfd_archive:
check_excluded_libs (entry->the_bfd);
- if (entry->whole_archive)
+ if (entry->flags.whole_archive)
{
bfd *member = NULL;
bfd_boolean loaded = TRUE;
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;
}
}
- entry->loaded = loaded;
+ entry->flags.loaded = loaded;
return loaded;
}
break;
}
if (bfd_link_add_symbols (entry->the_bfd, &link_info))
- entry->loaded = TRUE;
+ 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->loaded;
+ return entry->flags.loaded;
}
/* Handle a wild statement. S->FILENAME or S->SECTION_LIST or both
LANG_FOR_EACH_INPUT_STATEMENT (s)
{
if (s->header.type == lang_input_statement_enum
- && s->real)
+ && s->flags.real)
{
ldfile_open_file (s);
current_target = s->target_statement.target;
break;
case lang_input_statement_enum:
- if (s->input_statement.real)
+ if (s->input_statement.flags.real)
{
lang_statement_union_type **os_tail;
lang_statement_list_type add;
&& ((mode & OPEN_BFD_RESCAN) == 0
|| plugin_insert == NULL)
#endif
- && !s->input_statement.whole_archive
- && s->input_statement.loaded
+ && !s->input_statement.flags.whole_archive
+ && s->input_statement.flags.loaded
+ && s->input_statement.the_bfd != NULL
&& bfd_check_format (s->input_statement.the_bfd,
bfd_archive))
- s->input_statement.loaded = FALSE;
+ s->input_statement.flags.loaded = FALSE;
#ifdef ENABLE_PLUGINS
/* When rescanning, reload --as-needed shared libs. */
else if ((mode & OPEN_BFD_RESCAN) != 0
&& plugin_insert == NULL
- && s->input_statement.loaded
- && s->input_statement.add_DT_NEEDED_for_regular
+ && s->input_statement.flags.loaded
+ && s->input_statement.flags.add_DT_NEEDED_for_regular
+ && s->input_statement.the_bfd != NULL
&& ((s->input_statement.the_bfd->flags) & DYNAMIC) != 0
&& plugin_should_reload (s->input_statement.the_bfd))
{
- s->input_statement.loaded = FALSE;
- s->input_statement.reload = TRUE;
+ s->input_statement.flags.loaded = FALSE;
+ s->input_statement.flags.reload = TRUE;
}
#endif
#endif
break;
case lang_assignment_statement_enum:
- if (s->assignment_statement.exp->assign.hidden)
+ if (s->assignment_statement.exp->assign.defsym)
/* This is from a --defsym on the command line. */
exp_fold_tree_no_dot (s->assignment_statement.exp);
break;
}
/* Exit if any of the files were missing. */
- if (missing_file)
+ if (input_flags.missing_file)
einfo ("%F");
}
break;
case lang_wild_statement_enum:
- sec = s->wild_statement.section_list;
for (sec = s->wild_statement.section_list; sec != NULL;
sec = sec->next)
{
break;
case lang_output_section_statement_enum:
- update_wild_statements
- (s->output_section_statement.children.head);
+ /* Don't sort .init/.fini sections. */
+ if (strcmp (s->output_section_statement.name, ".init") != 0
+ && strcmp (s->output_section_statement.name, ".fini") != 0)
+ update_wild_statements
+ (s->output_section_statement.children.head);
break;
case lang_group_statement_enum:
asection *s;
for (s = output_section->map_head.s; s != NULL; s = s->map_head.s)
- if ((s->flags & SEC_LINKER_CREATED) != 0
- && (s->flags & SEC_EXCLUDE) == 0)
+ if ((s->flags & SEC_EXCLUDE) == 0
+ && ((s->flags & SEC_LINKER_CREATED) != 0
+ || link_info.emitrelocations))
{
exclude = FALSE;
break;
{
/* We don't set bfd_section to NULL since bfd_section of the
removed output section statement may still be used. */
- if (!os->section_relative_symbol
- && !os->update_dot_tree)
+ if (!os->update_dot)
os->ignored = TRUE;
output_section->flags |= SEC_EXCLUDE;
bfd_section_list_remove (link_info.output_bfd, output_section);
output_section_statement);
}
-/* Scan for the use of the destination in the right hand side
- of an expression. In such cases we will not compute the
- correct expression, since the value of DST that is used on
- the right hand side will be its final value, not its value
- just before this expression is evaluated. */
-
-static bfd_boolean
-scan_for_self_assignment (const char * dst, etree_type * rhs)
-{
- if (rhs == NULL || dst == NULL)
- return FALSE;
-
- switch (rhs->type.node_class)
- {
- case etree_binary:
- return (scan_for_self_assignment (dst, rhs->binary.lhs)
- || scan_for_self_assignment (dst, rhs->binary.rhs));
-
- case etree_trinary:
- return (scan_for_self_assignment (dst, rhs->trinary.lhs)
- || scan_for_self_assignment (dst, rhs->trinary.rhs));
-
- case etree_assign:
- case etree_provided:
- case etree_provide:
- if (strcmp (dst, rhs->assign.dst) == 0)
- return TRUE;
- return scan_for_self_assignment (dst, rhs->assign.src);
-
- case etree_unary:
- return scan_for_self_assignment (dst, rhs->unary.child);
-
- case etree_value:
- if (rhs->value.str)
- return strcmp (dst, rhs->value.str) == 0;
- return FALSE;
-
- case etree_name:
- if (rhs->name.name)
- return strcmp (dst, rhs->name.name) == 0;
- return FALSE;
-
- default:
- break;
- }
-
- return FALSE;
-}
-
-
static void
print_assignment (lang_assignment_statement_type *assignment,
lang_output_section_statement_type *output_section)
{
unsigned int i;
bfd_boolean is_dot;
- bfd_boolean computation_is_valid = TRUE;
etree_type *tree;
asection *osec;
{
is_dot = FALSE;
tree = assignment->exp->assert_s.child;
- computation_is_valid = TRUE;
}
else
{
const char *dst = assignment->exp->assign.dst;
is_dot = (dst[0] == '.' && dst[1] == 0);
+ expld.assign_name = dst;
tree = assignment->exp->assign.src;
- computation_is_valid = is_dot || !scan_for_self_assignment (dst, tree);
}
osec = output_section->bfd_section;
{
bfd_vma value;
- if (computation_is_valid)
+ if (assignment->exp->type.node_class == etree_assert
+ || is_dot
+ || expld.assign_name != NULL)
{
value = expld.result.value;
minfo (" ");
#endif
}
+ expld.assign_name = NULL;
minfo (" ");
exp_print_tree (assignment->exp);
entries[i] = def->entry;
qsort (entries, ud->map_symbol_def_count, sizeof (*entries),
- hash_entry_addr_cmp);
+ hash_entry_addr_cmp);
/* Print the symbols. */
for (i = 0; i < ud->map_symbol_def_count; i++)
{
/* Make a new padding statement, linked into existing chain. */
pad = (lang_statement_union_type *)
- stat_alloc (sizeof (lang_padding_statement_type));
+ stat_alloc (sizeof (lang_padding_statement_type));
pad->header.next = *ptr;
*ptr = pad;
pad->header.type = lang_padding_statement_enum;
}
pad->padding_statement.output_offset = dot - output_section->vma;
pad->padding_statement.size = alignment_needed;
- output_section->size += alignment_needed;
+ output_section->size = TO_SIZE (dot + TO_ADDR (alignment_needed)
+ - output_section->vma);
}
/* Work out how much this section will move the dot point. */
lang_input_section_type *is = &((*this_ptr)->input_section);
asection *i = is->section;
- if (!((lang_input_statement_type *) i->owner->usrdata)->just_syms_flag
+ if (i->sec_info_type != SEC_INFO_TYPE_JUST_SYMS
&& (i->flags & SEC_EXCLUDE) == 0)
{
bfd_size_type alignment_needed;
{
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;
if (size < TO_SIZE ((unsigned) 1))
size = TO_SIZE ((unsigned) 1);
dot += TO_ADDR (size);
- output_section_statement->bfd_section->size += size;
+ output_section_statement->bfd_section->size
+ = TO_SIZE (dot - output_section_statement->bfd_section->vma);
+
}
break;
output_section_statement->bfd_section;
size = bfd_get_reloc_size (s->reloc_statement.howto);
dot += TO_ADDR (size);
- output_section_statement->bfd_section->size += size;
+ output_section_statement->bfd_section->size
+ = TO_SIZE (dot - output_section_statement->bfd_section->vma);
}
break;
}
expld.dataseg.relro = exp_dataseg_relro_none;
- /* This symbol is relative to this section. */
+ /* This symbol may be relative to this section. */
if ((tree->type.node_class == etree_provided
|| tree->type.node_class == etree_assign)
&& (tree->assign.dst [0] != '.'
|| tree->assign.dst [1] != '\0'))
- output_section_statement->section_relative_symbol = 1;
+ output_section_statement->update_dot = 1;
if (!output_section_statement->ignored)
{
if (current_section == NULL || previous_section == NULL)
return new_segment;
+ /* If this flag is set, the target never wants code and non-code
+ sections comingled in the same segment. */
+ if (config.separate_code
+ && ((current_section->flags ^ previous_section->flags) & SEC_CODE))
+ return TRUE;
+
/* Find the memory regions associated with the two sections.
We call lang_output_section_find() here rather than scanning the list
of output sections looking for a matching section pointer because if
expld.dataseg.phase = exp_dataseg_done;
}
+static lang_output_section_statement_type *current_section;
+static lang_assignment_statement_type *current_assign;
+static bfd_boolean prefer_next_section;
+
/* Worker function for lang_do_assignments. Recursiveness goes here. */
static bfd_vma
lang_do_assignments_1 (lang_statement_union_type *s,
lang_output_section_statement_type *current_os,
fill_type *fill,
- bfd_vma dot)
+ bfd_vma dot,
+ bfd_boolean *found_end)
{
for (; s != NULL; s = s->header.next)
{
{
case lang_constructors_statement_enum:
dot = lang_do_assignments_1 (constructor_list.head,
- current_os, fill, dot);
+ current_os, fill, dot, found_end);
break;
case lang_output_section_statement_enum:
lang_output_section_statement_type *os;
os = &(s->output_section_statement);
+ os->after_end = *found_end;
if (os->bfd_section != NULL && !os->ignored)
{
+ if ((os->bfd_section->flags & SEC_ALLOC) != 0)
+ {
+ current_section = os;
+ prefer_next_section = FALSE;
+ }
dot = os->bfd_section->vma;
- lang_do_assignments_1 (os->children.head, os, os->fill, dot);
+ lang_do_assignments_1 (os->children.head,
+ os, os->fill, dot, found_end);
/* .tbss sections effectively have zero size. */
if ((os->bfd_section->flags & SEC_HAS_CONTENTS) != 0
case lang_wild_statement_enum:
dot = lang_do_assignments_1 (s->wild_statement.children.head,
- current_os, fill, dot);
+ current_os, fill, dot, found_end);
break;
case lang_object_symbols_statement_enum:
break;
case lang_assignment_statement_enum:
+ current_assign = &s->assignment_statement;
+ if (current_assign->exp->type.node_class != etree_assert)
+ {
+ const char *p = current_assign->exp->assign.dst;
+
+ if (current_os == abs_output_section && p[0] == '.' && p[1] == 0)
+ prefer_next_section = TRUE;
+
+ while (*p == '_')
+ ++p;
+ if (strcmp (p, "end") == 0)
+ *found_end = TRUE;
+ }
exp_fold_tree (s->assignment_statement.exp,
current_os->bfd_section,
&dot);
case lang_group_statement_enum:
dot = lang_do_assignments_1 (s->group_statement.children.head,
- current_os, fill, dot);
+ current_os, fill, dot, found_end);
break;
case lang_insert_statement_enum:
void
lang_do_assignments (lang_phase_type phase)
{
+ bfd_boolean found_end = FALSE;
+
+ current_section = NULL;
+ prefer_next_section = FALSE;
expld.phase = phase;
lang_statement_iteration++;
- lang_do_assignments_1 (statement_list.head, abs_output_section, NULL, 0);
+ lang_do_assignments_1 (statement_list.head,
+ abs_output_section, NULL, 0, &found_end);
+}
+
+/* For an assignment statement outside of an output section statement,
+ choose the best of neighbouring output sections to use for values
+ of "dot". */
+
+asection *
+section_for_dot (void)
+{
+ asection *s;
+
+ /* Assignments belong to the previous output section, unless there
+ has been an assignment to "dot", in which case following
+ assignments belong to the next output section. (The assumption
+ is that an assignment to "dot" is setting up the address for the
+ next output section.) Except that past the assignment to "_end"
+ we always associate with the previous section. This exception is
+ for targets like SH that define an alloc .stack or other
+ weirdness after non-alloc sections. */
+ if (current_section == NULL || prefer_next_section)
+ {
+ lang_statement_union_type *stmt;
+ lang_output_section_statement_type *os;
+
+ for (stmt = (lang_statement_union_type *) current_assign;
+ stmt != NULL;
+ stmt = stmt->header.next)
+ if (stmt->header.type == lang_output_section_statement_enum)
+ break;
+
+ os = &stmt->output_section_statement;
+ while (os != NULL
+ && !os->after_end
+ && (os->bfd_section == NULL
+ || (os->bfd_section->flags & SEC_EXCLUDE) != 0
+ || bfd_section_removed_from_list (link_info.output_bfd,
+ os->bfd_section)))
+ os = os->next;
+
+ if (current_section == NULL || os == NULL || !os->after_end)
+ {
+ if (os != NULL)
+ s = os->bfd_section;
+ else
+ s = link_info.output_bfd->section_last;
+ while (s != NULL
+ && ((s->flags & SEC_ALLOC) == 0
+ || (s->flags & SEC_THREAD_LOCAL) != 0))
+ s = s->prev;
+ if (s != NULL)
+ return s;
+
+ return bfd_abs_section_ptr;
+ }
+ }
+
+ s = current_section->bfd_section;
+
+ /* The section may have been stripped. */
+ while (s != NULL
+ && ((s->flags & SEC_EXCLUDE) != 0
+ || (s->flags & SEC_ALLOC) == 0
+ || (s->flags & SEC_THREAD_LOCAL) != 0
+ || bfd_section_removed_from_list (link_info.output_bfd, s)))
+ s = s->prev;
+ if (s == NULL)
+ s = link_info.output_bfd->sections;
+ while (s != NULL
+ && ((s->flags & SEC_ALLOC) == 0
+ || (s->flags & SEC_THREAD_LOCAL) != 0))
+ s = s->next;
+ if (s != NULL)
+ return s;
+
+ return bfd_abs_section_ptr;
}
/* Fix any .startof. or .sizeof. symbols. When the assemblers see the
if (h != NULL && h->type == bfd_link_hash_undefined)
{
h->type = bfd_link_hash_defined;
- h->u.def.value = bfd_get_section_vma (link_info.output_bfd, s);
- h->u.def.section = bfd_abs_section_ptr;
+ h->u.def.value = 0;
+ h->u.def.section = s;
}
sprintf (buf, ".sizeof.%s", secname);
}
}
}
-
- /* Don't bfd_hash_table_free (&lang_definedness_table);
- map file output may result in a call of lang_track_definedness. */
}
/* This is a small function used when we want to ignore errors from
{
#ifdef ENABLE_PLUGINS
/* Don't check format of files claimed by plugin. */
- if (file->input_statement.claimed)
+ if (file->input_statement.flags.claimed)
continue;
#endif /* ENABLE_PLUGINS */
input_bfd = file->input_statement.the_bfd;
/* This section of the file is not attached, root
around for a sensible place for it to go. */
- if (file->just_syms_flag)
+ if (file->flags.just_syms)
bfd_link_just_syms (file->the_bfd, s, &link_info);
else if ((s->flags & SEC_EXCLUDE) != 0)
s->output_section = bfd_abs_section_ptr;
= lang_output_section_statement_lookup (".bss", 0,
TRUE);
lang_add_section (&default_common_section->children, s,
- default_common_section);
+ NULL, default_common_section);
}
}
else
&& (link_info.relocatable
|| (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0))
os->addr_tree = exp_intop (0);
- lang_add_section (&os->children, s, os);
+ lang_add_section (&os->children, s, NULL, os);
}
}
}
}
}
-static lang_output_section_statement_type *current_section;
-
static int
topower (int x)
{
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 =
gc_section_callback (lang_wild_statement_type *ptr,
struct wildcard_list *sec ATTRIBUTE_UNUSED,
asection *section,
+ struct flag_info *sflag_info ATTRIBUTE_UNUSED,
lang_input_statement_type *file ATTRIBUTE_UNUSED,
void *data ATTRIBUTE_UNUSED)
{
{
asection *sec;
#ifdef ENABLE_PLUGINS
- if (f->claimed)
+ if (f->flags.claimed)
continue;
#endif
for (sec = f->the_bfd->sections; sec != NULL; sec = sec->next)
find_relro_section_callback (lang_wild_statement_type *ptr ATTRIBUTE_UNUSED,
struct wildcard_list *sec ATTRIBUTE_UNUSED,
asection *section,
+ struct flag_info *sflag_info ATTRIBUTE_UNUSED,
lang_input_statement_type *file ATTRIBUTE_UNUSED,
void *data)
{
claim1 != NULL;
claim1 = &claim1->next->input_statement)
{
- if (claim1->claimed)
- return claim1->claim_archive ? lastobject : claim1;
+ if (claim1->flags.claimed)
+ return claim1->flags.claim_archive ? lastobject : claim1;
/* Update lastobject if this is a real object file. */
if (claim1->the_bfd && (claim1->the_bfd->my_archive == NULL))
lastobject = claim1;
}
first_file->filename = name;
first_file->local_sym_name = name;
- first_file->real = TRUE;
+ first_file->flags.real = TRUE;
}
void
pop_stat_ptr ();
}
-/* Create an absolute symbol with the given name with the value of the
- address of first byte of the section named.
-
- If the symbol already exists, then do nothing. */
-
-void
-lang_abs_symbol_at_beginning_of (const char *secname, const char *name)
-{
- struct bfd_link_hash_entry *h;
-
- h = bfd_link_hash_lookup (link_info.hash, name, TRUE, TRUE, TRUE);
- if (h == NULL)
- einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
-
- if (h->type == bfd_link_hash_new
- || h->type == bfd_link_hash_undefined)
- {
- asection *sec;
-
- h->type = bfd_link_hash_defined;
-
- sec = bfd_get_section_by_name (link_info.output_bfd, secname);
- if (sec == NULL)
- h->u.def.value = 0;
- else
- h->u.def.value = bfd_get_section_vma (link_info.output_bfd, sec);
-
- h->u.def.section = bfd_abs_section_ptr;
- }
-}
-
-/* Create an absolute symbol with the given name with the value of the
- address of the first byte after the end of the section named.
-
- If the symbol already exists, then do nothing. */
-
-void
-lang_abs_symbol_at_end_of (const char *secname, const char *name)
-{
- struct bfd_link_hash_entry *h;
-
- h = bfd_link_hash_lookup (link_info.hash, name, TRUE, TRUE, TRUE);
- if (h == NULL)
- einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
-
- if (h->type == bfd_link_hash_new
- || h->type == bfd_link_hash_undefined)
- {
- asection *sec;
-
- h->type = bfd_link_hash_defined;
-
- sec = bfd_get_section_by_name (link_info.output_bfd, secname);
- if (sec == NULL)
- h->u.def.value = 0;
- else
- h->u.def.value = (bfd_get_section_vma (link_info.output_bfd, sec)
- + TO_ADDR (sec->size));
-
- h->u.def.section = bfd_abs_section_ptr;
- }
-}
-
void
lang_statement_append (lang_statement_list_type *list,
lang_statement_union_type *element,
{
alc *= 2;
secs = (asection **) xrealloc (secs,
- alc * sizeof (asection *));
+ alc * sizeof (asection *));
}
secs[c] = os->bfd_section;
++c;
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
/* After setting the size of the last section, set '.' to end of the
overlay region. */
if (overlay_list != NULL)
- overlay_list->os->update_dot_tree
- = exp_assign (".", exp_binop ('+', overlay_vma, overlay_max));
+ {
+ overlay_list->os->update_dot = 1;
+ overlay_list->os->update_dot_tree
+ = exp_assign (".", exp_binop ('+', overlay_vma, overlay_max), FALSE);
+ }
l = overlay_list;
while (l != NULL)
{
e.pattern = c_sym;
expr = (struct bfd_elf_version_expr *)
- htab_find ((htab_t) head->htab, &e);
+ htab_find ((htab_t) head->htab, &e);
while (expr && strcmp (expr->pattern, c_sym) == 0)
if (expr->mask == BFD_ELF_VERSION_C_TYPE)
goto out_ret;
{
e.pattern = cxx_sym;
expr = (struct bfd_elf_version_expr *)
- htab_find ((htab_t) head->htab, &e);
+ htab_find ((htab_t) head->htab, &e);
while (expr && strcmp (expr->pattern, cxx_sym) == 0)
if (expr->mask == BFD_ELF_VERSION_CXX_TYPE)
goto out_ret;
{
e.pattern = java_sym;
expr = (struct bfd_elf_version_expr *)
- htab_find ((htab_t) head->htab, &e);
+ htab_find ((htab_t) head->htab, &e);
while (expr && strcmp (expr->pattern, java_sym) == 0)
if (expr->mask == BFD_ELF_VERSION_JAVA_TYPE)
goto out_ret;
if (t->locals.htab && e1->literal)
{
e2 = (struct bfd_elf_version_expr *)
- htab_find ((htab_t) t->locals.htab, e1);
+ htab_find ((htab_t) t->locals.htab, e1);
while (e2 && strcmp (e1->pattern, e2->pattern) == 0)
{
if (e1->mask == e2->mask)
if (t->globals.htab && e1->literal)
{
e2 = (struct bfd_elf_version_expr *)
- htab_find ((htab_t) t->globals.htab, e1);
+ htab_find ((htab_t) t->globals.htab, e1);
while (e2 && strcmp (e1->pattern, e2->pattern) == 0)
{
if (e1->mask == e2->mask)