/* Linker command language support.
Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
- 2001
+ 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
-This file is part of GLD, the Gnu Linker.
+ This file is part of GLD, the Gnu Linker.
-GLD is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
+ GLD is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
-GLD is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ GLD is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with GLD; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with GLD; see the file COPYING. If not, write to the Free
+ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+ 02111-1307, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libiberty.h"
+#include "safe-ctype.h"
#include "obstack.h"
#include "bfdlink.h"
#include "ld.h"
#include "ldmain.h"
-#include "ldgram.h"
#include "ldexp.h"
#include "ldlang.h"
+#include <ldgram.h>
#include "ldlex.h"
#include "ldmisc.h"
#include "ldctor.h"
#include "ldemul.h"
#include "fnmatch.h"
#include "demangle.h"
+#include "hashtab.h"
-#include <ctype.h>
-
-/* FORWARDS */
-static lang_statement_union_type *new_statement PARAMS ((enum statement_enum,
- size_t,
- lang_statement_list_type *));
+#ifndef offsetof
+#define offsetof(TYPE, MEMBER) ((size_t) & (((TYPE*) 0)->MEMBER))
+#endif
-/* LOCALS */
+/* Locals variables. */
static struct obstack stat_obstack;
#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free free
static const char *startup_file;
static lang_statement_list_type input_file_chain;
-static boolean placed_commons = false;
+static bfd_boolean placed_commons = FALSE;
static lang_output_section_statement_type *default_common_section;
-static boolean map_option_f;
+static bfd_boolean map_option_f;
static bfd_vma print_dot;
static lang_input_statement_type *first_file;
static const char *current_target;
static const char *output_target;
static lang_statement_list_type statement_list;
static struct lang_phdr *lang_phdr_list;
-
-static void lang_for_each_statement_worker
- PARAMS ((void (*) (lang_statement_union_type *),
- lang_statement_union_type *));
-static lang_input_statement_type *new_afile
- PARAMS ((const char *, lang_input_file_enum_type, const char *, boolean));
-static lang_memory_region_type *lang_memory_default PARAMS ((asection *));
-static void lang_map_flags PARAMS ((flagword));
-static void init_os PARAMS ((lang_output_section_statement_type *));
-static void exp_init_os PARAMS ((etree_type *));
-static void section_already_linked PARAMS ((bfd *, asection *, PTR));
-static struct bfd_hash_entry *already_linked_newfunc
- PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
-static void already_linked_table_init PARAMS ((void));
-static void already_linked_table_free PARAMS ((void));
-static boolean wildcardp PARAMS ((const char *));
-static lang_statement_union_type *wild_sort
- PARAMS ((lang_wild_statement_type *, lang_input_statement_type *,
- asection *));
-static void output_section_callback
- PARAMS ((lang_wild_statement_type *, asection *,
- lang_input_statement_type *, PTR));
-static lang_input_statement_type *lookup_name PARAMS ((const char *));
-static void load_symbols
- PARAMS ((lang_input_statement_type *, lang_statement_list_type *));
-static void wild
- PARAMS ((lang_wild_statement_type *, const char *, const char *,
- const char *, lang_output_section_statement_type *));
-static bfd *open_output PARAMS ((const char *));
-static void ldlang_open_output PARAMS ((lang_statement_union_type *));
-static void open_input_bfds PARAMS ((lang_statement_union_type *, boolean));
-static void lang_reasonable_defaults PARAMS ((void));
-static void lang_place_undefineds PARAMS ((void));
-static void map_input_to_output_sections
- PARAMS ((lang_statement_union_type *, const char *,
- lang_output_section_statement_type *));
-static void print_output_section_statement
- PARAMS ((lang_output_section_statement_type *));
-static void print_assignment
- PARAMS ((lang_assignment_statement_type *,
- lang_output_section_statement_type *));
-static void print_input_statement PARAMS ((lang_input_statement_type *));
-static boolean print_one_symbol PARAMS ((struct bfd_link_hash_entry *, PTR));
-static void print_input_section PARAMS ((lang_input_section_type *));
-static void print_fill_statement PARAMS ((lang_fill_statement_type *));
-static void print_data_statement PARAMS ((lang_data_statement_type *));
-static void print_address_statement PARAMS ((lang_address_statement_type *));
-static void print_reloc_statement PARAMS ((lang_reloc_statement_type *));
-static void print_padding_statement PARAMS ((lang_padding_statement_type *));
-static void print_wild_statement
- PARAMS ((lang_wild_statement_type *, lang_output_section_statement_type *));
-static void print_group
- PARAMS ((lang_group_statement_type *, lang_output_section_statement_type *));
-static void print_statement
- PARAMS ((lang_statement_union_type *, lang_output_section_statement_type *));
-static void print_statement_list
- PARAMS ((lang_statement_union_type *, lang_output_section_statement_type *));
-static void print_statements PARAMS ((void));
-static bfd_vma insert_pad
- PARAMS ((lang_statement_union_type **, fill_type,
- unsigned int, asection *, bfd_vma));
-static bfd_vma size_input_section
- PARAMS ((lang_statement_union_type **, lang_output_section_statement_type *,
- fill_type, bfd_vma, boolean));
-static void lang_finish PARAMS ((void));
-static void ignore_bfd_errors PARAMS ((const char *, ...));
-static void record_bfd_errors PARAMS ((const char *, ...));
-static void lang_check PARAMS ((void));
-static void lang_common PARAMS ((void));
-static boolean lang_one_common PARAMS ((struct bfd_link_hash_entry *, PTR));
-static void lang_place_orphans PARAMS ((void));
-static int topower PARAMS ((int));
-static void lang_set_startof PARAMS ((void));
-static void reset_memory_regions PARAMS ((void));
-static void gc_section_callback
- PARAMS ((lang_wild_statement_type *, asection *,
- lang_input_statement_type *, PTR));
-static void lang_record_phdrs PARAMS ((void));
-static void lang_gc_wild
- PARAMS ((lang_wild_statement_type *, const char *, const char *));
-static void lang_gc_sections_1 PARAMS ((lang_statement_union_type *));
-static void lang_gc_sections PARAMS ((void));
-static int lang_vers_match_lang_c
- PARAMS ((struct bfd_elf_version_expr *, const char *));
-static int lang_vers_match_lang_cplusplus
- PARAMS ((struct bfd_elf_version_expr *, const char *));
-static int lang_vers_match_lang_java
- PARAMS ((struct bfd_elf_version_expr *, const char *));
-static void lang_do_version_exports_section PARAMS ((void));
-static void lang_check_section_addresses PARAMS ((void));
-static void os_region_check
- PARAMS ((lang_output_section_statement_type *,
- struct memory_region_struct *, etree_type *, bfd_vma));
-
-typedef void (*callback_t) PARAMS ((lang_wild_statement_type *,
- asection *, lang_input_statement_type *,
- PTR));
-static void walk_wild
- PARAMS ((lang_wild_statement_type *, const char *, const char *,
- callback_t, PTR));
-static void walk_wild_section
- PARAMS ((lang_wild_statement_type *, const char *,
- lang_input_statement_type *, callback_t, PTR));
-static void walk_wild_file
- PARAMS ((lang_wild_statement_type *, const char *,
- lang_input_statement_type *, callback_t, PTR));
-
-static int get_target PARAMS ((const bfd_target *, PTR));
-static void stricpy PARAMS ((char *, char *));
-static void strcut PARAMS ((char *, char *));
-static int name_compare PARAMS ((char *, char *));
-static int closest_target_match PARAMS ((const bfd_target *, PTR));
-static char * get_first_input_target PARAMS ((void));
-
-/* EXPORTS */
+static struct bfd_hash_table lang_definedness_table;
+
+/* Forward declarations. */
+static void exp_init_os (etree_type *);
+static bfd_boolean wildcardp (const char *);
+static lang_input_statement_type *lookup_name (const char *);
+static bfd_boolean load_symbols (lang_input_statement_type *,
+ lang_statement_list_type *);
+static struct bfd_hash_entry *lang_definedness_newfunc
+ (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
+static void insert_undefined (const char *);
+static void print_statement (lang_statement_union_type *,
+ lang_output_section_statement_type *);
+static void print_statement_list (lang_statement_union_type *,
+ lang_output_section_statement_type *);
+static void print_statements (void);
+static bfd_boolean lang_one_common (struct bfd_link_hash_entry *, void *);
+static void lang_record_phdrs (void);
+static void lang_do_version_exports_section (void);
+
+typedef void (*callback_t) (lang_wild_statement_type *, struct wildcard_list *,
+ asection *, lang_input_statement_type *, void *);
+
+/* Exported variables. */
lang_output_section_statement_type *abs_output_section;
lang_statement_list_type lang_output_section_statement;
lang_statement_list_type *stat_ptr = &statement_list;
lang_statement_list_type file_chain = { NULL, NULL };
-const char *entry_symbol = NULL;
-boolean entry_from_cmdline;
-boolean lang_has_input_file = false;
-boolean had_output_filename = false;
-boolean lang_float_flag = false;
-boolean delete_output_file_on_failure = false;
+struct bfd_sym_chain entry_symbol = { NULL, NULL };
+const char *entry_section = ".text";
+bfd_boolean entry_from_cmdline;
+bfd_boolean lang_has_input_file = FALSE;
+bfd_boolean had_output_filename = FALSE;
+bfd_boolean lang_float_flag = FALSE;
+bfd_boolean delete_output_file_on_failure = FALSE;
struct lang_nocrossrefs *nocrossref_list;
struct unique_sections *unique_section_list;
+static bfd_boolean ldlang_sysrooted_script = FALSE;
+int lang_statement_iteration = 0;
etree_type *base; /* Relocation base - or null */
-#if defined(__STDC__) || defined(ALMOST_STDC)
-#define cat(a,b) a##b
-#else
-#define cat(a,b) a/**/b
-#endif
-
-/* Don't beautify the line below with "innocent" whitespace, it breaks the K&R C preprocessor! */
-#define new_stat(x, y) (cat (x,_type)*) new_statement (cat (x,_enum), sizeof (cat (x,_type)), y)
+#define new_stat(x, y) \
+ (x##_type *) new_statement (x##_enum, sizeof (x##_type), y)
-#define outside_section_address(q) ((q)->output_offset + (q)->output_section->vma)
+#define outside_section_address(q) \
+ ((q)->output_offset + (q)->output_section->vma)
-#define outside_symbol_address(q) ((q)->value + outside_section_address (q->section))
+#define outside_symbol_address(q) \
+ ((q)->value + outside_section_address (q->section))
#define SECTION_NAME_MAP_LENGTH (16)
-PTR
-stat_alloc (size)
- size_t size;
+void *
+stat_alloc (size_t size)
{
return obstack_alloc (&stat_obstack, size);
}
-boolean
-unique_section_p (secnam)
- const char *secnam;
+bfd_boolean
+unique_section_p (const char *secnam)
{
struct unique_sections *unam;
? fnmatch (unam->name, secnam, 0) == 0
: strcmp (unam->name, secnam) == 0)
{
- return true;
+ return TRUE;
}
- return false;
+ return FALSE;
}
/* Generic traversal routines for finding matching sections. */
static void
-walk_wild_section (ptr, section, file, callback, data)
- lang_wild_statement_type *ptr;
- const char *section;
- lang_input_statement_type *file;
- callback_t callback;
- PTR data;
-{
- /* Don't process sections from files which were excluded. */
- if (ptr->exclude_filename_list != NULL)
- {
- struct name_list *list_tmp;
- for (list_tmp = ptr->exclude_filename_list; list_tmp; list_tmp = list_tmp->next)
- {
- boolean match;
-
- if (wildcardp (list_tmp->name))
- match = fnmatch (list_tmp->name, file->filename, 0) == 0 ? true : false;
- else
- match = strcmp (list_tmp->name, file->filename) == 0 ? true : false;
+walk_wild_section (lang_wild_statement_type *ptr,
+ lang_input_statement_type *file,
+ callback_t callback,
+ void *data)
+{
+ asection *s;
- if (match)
- return;
- }
- }
+ if (file->just_syms_flag)
+ return;
- if (file->just_syms_flag == false)
+ for (s = file->the_bfd->sections; s != NULL; s = s->next)
{
- register asection *s;
- boolean wildcard = false;
+ struct wildcard_list *sec;
- if (section != NULL)
- wildcard = wildcardp (section);
+ sec = ptr->section_list;
+ if (sec == NULL)
+ (*callback) (ptr, sec, s, file, data);
- for (s = file->the_bfd->sections; s != NULL; s = s->next)
+ while (sec != NULL)
{
- boolean match;
- const char *sname = bfd_get_section_name (file->the_bfd, s);
+ bfd_boolean skip = FALSE;
+ struct name_list *list_tmp;
+
+ /* Don't process sections from files which were
+ excluded. */
+ for (list_tmp = sec->spec.exclude_name_list;
+ list_tmp;
+ list_tmp = list_tmp->next)
+ {
+ if (wildcardp (list_tmp->name))
+ skip = fnmatch (list_tmp->name, file->filename, 0) == 0;
+ else
+ skip = strcmp (list_tmp->name, file->filename) == 0;
- if (section == NULL)
- match = true;
- else if (wildcard)
- match = fnmatch (section, sname, 0) == 0 ? true : false;
- else
- match = strcmp (section, sname) == 0 ? true : false;
+ /* If this file is part of an archive, and the archive is
+ excluded, exclude this file. */
+ if (! skip && file->the_bfd != NULL
+ && file->the_bfd->my_archive != NULL
+ && file->the_bfd->my_archive->filename != NULL)
+ {
+ if (wildcardp (list_tmp->name))
+ skip = fnmatch (list_tmp->name,
+ file->the_bfd->my_archive->filename,
+ 0) == 0;
+ else
+ skip = strcmp (list_tmp->name,
+ file->the_bfd->my_archive->filename) == 0;
+ }
+
+ if (skip)
+ break;
+ }
+
+ if (!skip && sec->spec.name != NULL)
+ {
+ const char *sname = bfd_get_section_name (file->the_bfd, s);
+
+ if (wildcardp (sec->spec.name))
+ skip = fnmatch (sec->spec.name, sname, 0) != 0;
+ else
+ skip = strcmp (sec->spec.name, sname) != 0;
+ }
- /* If this is a wild-card output section statement, exclude
- sections that match UNIQUE_SECTION_LIST. */
- if (match && (data == NULL || !unique_section_p (sname)))
- (*callback) (ptr, s, file, data);
+ if (!skip)
+ (*callback) (ptr, sec, s, file, data);
+
+ sec = sec->next;
}
}
}
/* Handle a wild statement for a single file F. */
static void
-walk_wild_file (s, section, f, callback, data)
- lang_wild_statement_type *s;
- const char *section;
- lang_input_statement_type *f;
- callback_t callback;
- PTR data;
+walk_wild_file (lang_wild_statement_type *s,
+ lang_input_statement_type *f,
+ callback_t callback,
+ void *data)
{
if (f->the_bfd == NULL
|| ! bfd_check_format (f->the_bfd, bfd_archive))
- walk_wild_section (s, section, f, callback, data);
+ walk_wild_section (s, f, callback, data);
else
{
bfd *member;
/* This is an archive file. We must map each member of the
archive separately. */
- member = bfd_openr_next_archived_file (f->the_bfd, (bfd *) NULL);
+ member = bfd_openr_next_archived_file (f->the_bfd, NULL);
while (member != NULL)
{
/* When lookup_name is called, it will call the add_symbols
lang_input_statement. */
if (member->usrdata != NULL)
{
- walk_wild_section (s, section,
- (lang_input_statement_type *) member->usrdata,
- callback, data);
+ walk_wild_section (s, member->usrdata, callback, data);
}
member = bfd_openr_next_archived_file (f->the_bfd, member);
}
static void
-walk_wild (s, section, file, callback, data)
- lang_wild_statement_type *s;
- const char *section;
- const char *file;
- callback_t callback;
- PTR data;
-{
- if (file == (char *) NULL)
+walk_wild (lang_wild_statement_type *s, callback_t callback, void *data)
+{
+ const char *file_spec = s->filename;
+
+ if (file_spec == NULL)
{
/* Perform the iteration over all files in the list. */
LANG_FOR_EACH_INPUT_STATEMENT (f)
{
- walk_wild_file (s, section, f, callback, data);
+ walk_wild_file (s, f, callback, data);
}
}
- else if (wildcardp (file))
+ else if (wildcardp (file_spec))
{
LANG_FOR_EACH_INPUT_STATEMENT (f)
{
- if (fnmatch (file, f->filename, FNM_FILE_NAME) == 0)
- walk_wild_file (s, section, f, callback, data);
+ if (fnmatch (file_spec, f->filename, FNM_FILE_NAME) == 0)
+ walk_wild_file (s, f, callback, data);
}
}
else
lang_input_statement_type *f;
/* Perform the iteration over a single file. */
- f = lookup_name (file);
- walk_wild_file (s, section, f, callback, data);
+ f = lookup_name (file_spec);
+ if (f)
+ walk_wild_file (s, f, callback, data);
}
}
function for each node. */
static void
-lang_for_each_statement_worker (func, s)
- void (*func) PARAMS ((lang_statement_union_type *));
- lang_statement_union_type *s;
+lang_for_each_statement_worker (void (*func) (lang_statement_union_type *),
+ lang_statement_union_type *s)
{
- for (; s != (lang_statement_union_type *) NULL; s = s->next)
+ for (; s != NULL; s = s->header.next)
{
func (s);
}
void
-lang_for_each_statement (func)
- void (*func) PARAMS ((lang_statement_union_type *));
+lang_for_each_statement (void (*func) (lang_statement_union_type *))
{
lang_for_each_statement_worker (func, statement_list.head);
}
/*----------------------------------------------------------------------*/
void
-lang_list_init (list)
- lang_statement_list_type *list;
+lang_list_init (lang_statement_list_type *list)
{
- list->head = (lang_statement_union_type *) NULL;
+ list->head = NULL;
list->tail = &list->head;
}
/* Build a new statement node for the parse tree. */
static lang_statement_union_type *
-new_statement (type, size, list)
- enum statement_enum type;
- size_t size;
- lang_statement_list_type *list;
+new_statement (enum statement_enum type,
+ size_t size,
+ lang_statement_list_type *list)
{
- lang_statement_union_type *new = (lang_statement_union_type *)
- stat_alloc (size);
+ lang_statement_union_type *new;
+ new = stat_alloc (size);
new->header.type = type;
- new->header.next = (lang_statement_union_type *) NULL;
+ new->header.next = NULL;
lang_statement_append (list, new, &new->header.next);
return new;
}
or prefix it with a -l etc.
We can be supplied with requests for input files more than once;
- they may, for example be split over serveral lines like foo.o(.text)
- foo.o(.data) etc, so when asked for a file we check that we havn't
+ they may, for example be split over several lines like foo.o(.text)
+ foo.o(.data) etc, so when asked for a file we check that we haven't
got it already so we don't duplicate the bfd. */
static lang_input_statement_type *
-new_afile (name, file_type, target, add_to_list)
- const char *name;
- lang_input_file_enum_type file_type;
- const char *target;
- boolean add_to_list;
+new_afile (const char *name,
+ lang_input_file_enum_type file_type,
+ const char *target,
+ bfd_boolean add_to_list)
{
lang_input_statement_type *p;
p = new_stat (lang_input_statement, stat_ptr);
else
{
- p = ((lang_input_statement_type *)
- stat_alloc (sizeof (lang_input_statement_type)));
+ p = stat_alloc (sizeof (lang_input_statement_type));
p->header.next = NULL;
}
- lang_has_input_file = true;
+ lang_has_input_file = TRUE;
p->target = target;
+ p->sysrooted = FALSE;
switch (file_type)
{
case lang_input_file_is_symbols_only_enum:
p->filename = name;
- p->is_archive = false;
- p->real = true;
+ p->is_archive = FALSE;
+ p->real = TRUE;
p->local_sym_name = name;
- p->just_syms_flag = true;
- p->search_dirs_flag = false;
+ p->just_syms_flag = TRUE;
+ p->search_dirs_flag = FALSE;
break;
case lang_input_file_is_fake_enum:
p->filename = name;
- p->is_archive = false;
- p->real = false;
+ p->is_archive = FALSE;
+ p->real = FALSE;
p->local_sym_name = name;
- p->just_syms_flag = false;
- p->search_dirs_flag = false;
+ p->just_syms_flag = FALSE;
+ p->search_dirs_flag = FALSE;
break;
case lang_input_file_is_l_enum:
- p->is_archive = true;
+ p->is_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->real = TRUE;
+ p->local_sym_name = concat ("-l", name, NULL);
+ p->just_syms_flag = FALSE;
+ p->search_dirs_flag = TRUE;
break;
case lang_input_file_is_marker_enum:
p->filename = name;
- p->is_archive = false;
- p->real = false;
+ p->is_archive = FALSE;
+ p->real = FALSE;
p->local_sym_name = name;
- p->just_syms_flag = false;
- p->search_dirs_flag = true;
+ p->just_syms_flag = FALSE;
+ p->search_dirs_flag = TRUE;
break;
case lang_input_file_is_search_file_enum:
+ p->sysrooted = ldlang_sysrooted_script;
p->filename = name;
- p->is_archive = false;
- p->real = true;
+ p->is_archive = FALSE;
+ p->real = TRUE;
p->local_sym_name = name;
- p->just_syms_flag = false;
- p->search_dirs_flag = true;
+ p->just_syms_flag = FALSE;
+ p->search_dirs_flag = TRUE;
break;
case lang_input_file_is_file_enum:
p->filename = name;
- p->is_archive = false;
- p->real = true;
+ p->is_archive = FALSE;
+ p->real = TRUE;
p->local_sym_name = name;
- p->just_syms_flag = false;
- p->search_dirs_flag = false;
+ p->just_syms_flag = FALSE;
+ p->search_dirs_flag = FALSE;
break;
default:
FAIL ();
}
- p->the_bfd = (bfd *) NULL;
- p->asymbols = (asymbol **) NULL;
- p->next_real_file = (lang_statement_union_type *) NULL;
- p->next = (lang_statement_union_type *) NULL;
+ p->the_bfd = NULL;
+ p->asymbols = NULL;
+ p->next_real_file = NULL;
+ p->next = NULL;
p->symbol_count = 0;
p->dynamic = config.dynamic_link;
+ p->as_needed = as_needed;
p->whole_archive = whole_archive;
- p->loaded = false;
+ p->loaded = FALSE;
lang_statement_append (&input_file_chain,
(lang_statement_union_type *) p,
&p->next_real_file);
}
lang_input_statement_type *
-lang_add_input_file (name, file_type, target)
- const char *name;
- lang_input_file_enum_type file_type;
- const char *target;
+lang_add_input_file (const char *name,
+ lang_input_file_enum_type file_type,
+ const char *target)
{
- lang_has_input_file = true;
- return new_afile (name, file_type, target, true);
+ lang_has_input_file = TRUE;
+ return new_afile (name, file_type, target, TRUE);
}
/* Build enough state so that the parser can build its tree. */
void
-lang_init ()
+lang_init (void)
{
obstack_begin (&stat_obstack, 1000);
lang_list_init (&input_file_chain);
lang_list_init (&lang_output_section_statement);
lang_list_init (&file_chain);
- first_file = lang_add_input_file ((char *) NULL,
- lang_input_file_is_marker_enum,
- (char *) NULL);
+ first_file = lang_add_input_file (NULL, lang_input_file_is_marker_enum,
+ NULL);
abs_output_section =
lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME);
abs_output_section->bfd_section = bfd_abs_section_ptr;
+ /* The value "3" is ad-hoc, somewhat related to the expected number of
+ DEFINED expressions in a linker script. For most default linker
+ scripts, there are none. Why a hash table then? Well, it's somewhat
+ simpler to re-use working machinery than using a linked list in terms
+ of code-complexity here in ld, besides the initialization which just
+ looks like other code here. */
+ if (bfd_hash_table_init_n (&lang_definedness_table,
+ lang_definedness_newfunc, 3) != TRUE)
+ einfo (_("%P%F: out of memory during initialization"));
+
+ /* Callers of exp_fold_tree need to increment this. */
+ lang_statement_iteration = 0;
}
/*----------------------------------------------------------------------
We maintain a list of all the regions here.
If no regions are specified in the script, then the default is used
- which is created when looked up to be the entire data space. */
+ which is created when looked up to be the entire data space.
+
+ If create is true we are creating a region inside a MEMORY block.
+ In this case it is probably an error to create a region that has
+ already been created. If we are not inside a MEMORY block it is
+ dubious to use an undeclared region name (except DEFAULT_MEMORY_REGION)
+ and so we issue a warning. */
static lang_memory_region_type *lang_memory_region_list;
static lang_memory_region_type **lang_memory_region_list_tail = &lang_memory_region_list;
lang_memory_region_type *
-lang_memory_region_lookup (name)
- const char *const name;
+lang_memory_region_lookup (const char *const name, bfd_boolean create)
{
lang_memory_region_type *p;
+ lang_memory_region_type *new;
- for (p = lang_memory_region_list;
- p != (lang_memory_region_type *) NULL;
- p = p->next)
- {
- if (strcmp (p->name, name) == 0)
- {
- return p;
- }
- }
+ /* NAME is NULL for LMA memspecs if no region was specified. */
+ if (name == NULL)
+ return NULL;
+
+ for (p = lang_memory_region_list; p != NULL; p = p->next)
+ if (strcmp (p->name, name) == 0)
+ {
+ if (create)
+ einfo (_("%P:%S: warning: redeclaration of memory region '%s'\n"), name);
+ return p;
+ }
#if 0
/* This code used to always use the first region in the list as the
NOLOAD sections to work reasonably without requiring a region.
People should specify what region they mean, if they really want
a region. */
- if (strcmp (name, "*default*") == 0)
+ if (strcmp (name, DEFAULT_MEMORY_REGION) == 0)
{
- if (lang_memory_region_list != (lang_memory_region_type *) NULL)
- {
- return lang_memory_region_list;
- }
+ if (lang_memory_region_list != NULL)
+ return lang_memory_region_list;
}
#endif
- {
- lang_memory_region_type *new =
- (lang_memory_region_type *) stat_alloc (sizeof (lang_memory_region_type));
+ if (!create && strcmp (name, DEFAULT_MEMORY_REGION))
+ einfo (_("%P:%S: warning: memory region %s not declared\n"), name);
+
+ new = stat_alloc (sizeof (lang_memory_region_type));
- new->name = buystring (name);
- new->next = (lang_memory_region_type *) NULL;
+ new->name = xstrdup (name);
+ new->next = NULL;
- *lang_memory_region_list_tail = new;
- lang_memory_region_list_tail = &new->next;
- new->origin = 0;
- new->flags = 0;
- new->not_flags = 0;
- new->length = ~(bfd_size_type) 0;
- new->current = 0;
- new->had_full_message = false;
+ *lang_memory_region_list_tail = new;
+ lang_memory_region_list_tail = &new->next;
+ new->origin = 0;
+ new->flags = 0;
+ new->not_flags = 0;
+ new->length = ~(bfd_size_type) 0;
+ new->current = 0;
+ new->had_full_message = FALSE;
- return new;
- }
+ return new;
}
static lang_memory_region_type *
-lang_memory_default (section)
- asection *section;
+lang_memory_default (asection *section)
{
lang_memory_region_type *p;
if ((sec_flags & (SEC_ALLOC | SEC_READONLY | SEC_CODE)) == SEC_ALLOC)
sec_flags |= SEC_DATA;
- for (p = lang_memory_region_list;
- p != (lang_memory_region_type *) NULL;
- p = p->next)
+ for (p = lang_memory_region_list; p != NULL; p = p->next)
{
if ((p->flags & sec_flags) != 0
&& (p->not_flags & sec_flags) == 0)
return p;
}
}
- return lang_memory_region_lookup ("*default*");
+ return lang_memory_region_lookup (DEFAULT_MEMORY_REGION, FALSE);
}
lang_output_section_statement_type *
-lang_output_section_find (name)
- const char *const name;
+lang_output_section_find (const char *const name)
{
lang_statement_union_type *u;
lang_output_section_statement_type *lookup;
- for (u = lang_output_section_statement.head;
- u != (lang_statement_union_type *) NULL;
- u = lookup->next)
+ for (u = lang_output_section_statement.head; u != NULL; u = lookup->next)
{
lookup = &u->output_section_statement;
if (strcmp (name, lookup->name) == 0)
- {
- return lookup;
- }
+ return lookup;
}
- return (lang_output_section_statement_type *) NULL;
+ return NULL;
}
lang_output_section_statement_type *
-lang_output_section_statement_lookup (name)
- const char *const name;
+lang_output_section_statement_lookup (const char *const name)
{
lang_output_section_statement_type *lookup;
lookup = lang_output_section_find (name);
- if (lookup == (lang_output_section_statement_type *) NULL)
+ if (lookup == NULL)
{
-
- lookup = (lang_output_section_statement_type *)
- new_stat (lang_output_section_statement, stat_ptr);
- lookup->region = (lang_memory_region_type *) NULL;
- lookup->lma_region = (lang_memory_region_type *) NULL;
+ lookup = new_stat (lang_output_section_statement, stat_ptr);
+ lookup->region = NULL;
+ lookup->lma_region = NULL;
lookup->fill = 0;
lookup->block_value = 1;
lookup->name = name;
- lookup->next = (lang_statement_union_type *) NULL;
- lookup->bfd_section = (asection *) NULL;
- lookup->processed = false;
+ lookup->next = NULL;
+ lookup->bfd_section = NULL;
+ lookup->processed = 0;
lookup->sectype = normal_section;
- lookup->addr_tree = (etree_type *) NULL;
+ lookup->addr_tree = NULL;
lang_list_init (&lookup->children);
- lookup->memspec = (const char *) NULL;
+ lookup->memspec = NULL;
lookup->flags = 0;
lookup->subsection_alignment = -1;
lookup->section_alignment = -1;
- lookup->load_base = (union etree_union *) NULL;
+ lookup->load_base = NULL;
+ lookup->update_dot_tree = NULL;
lookup->phdrs = NULL;
lang_statement_append (&lang_output_section_statement,
}
static void
-lang_map_flags (flag)
- flagword flag;
+lang_map_flags (flagword flag)
{
if (flag & SEC_ALLOC)
minfo ("a");
}
void
-lang_map ()
+lang_map (void)
{
lang_memory_region_type *m;
fprintf (config.map_file, "%-16s %-18s %-18s %s\n",
_("Name"), _("Origin"), _("Length"), _("Attributes"));
- for (m = lang_memory_region_list;
- m != (lang_memory_region_type *) NULL;
- m = m->next)
+ for (m = lang_memory_region_list; m != NULL; m = m->next)
{
char buf[100];
int len;
/* Initialize an output section. */
static void
-init_os (s)
- lang_output_section_statement_type *s;
+init_os (lang_output_section_statement_type *s)
{
section_userdata_type *new;
return;
if (strcmp (s->name, DISCARD_SECTION_NAME) == 0)
- einfo (_("%P%F: Illegal use of `%s' section"), DISCARD_SECTION_NAME);
+ einfo (_("%P%F: Illegal use of `%s' section\n"), DISCARD_SECTION_NAME);
- new = ((section_userdata_type *)
- stat_alloc (sizeof (section_userdata_type)));
+ new = stat_alloc (sizeof (section_userdata_type));
s->bfd_section = bfd_get_section_by_name (output_bfd, s->name);
- if (s->bfd_section == (asection *) NULL)
+ if (s->bfd_section == NULL)
s->bfd_section = bfd_make_section (output_bfd, s->name);
- if (s->bfd_section == (asection *) NULL)
+ if (s->bfd_section == NULL)
{
einfo (_("%P%F: output format %s cannot represent section called %s\n"),
output_bfd->xvec->name, s->name);
/* We initialize an output sections output offset to minus its own
vma to allow us to output a section through itself. */
s->bfd_section->output_offset = 0;
- get_userdata (s->bfd_section) = (PTR) new;
+ get_userdata (s->bfd_section) = new;
/* If there is a base address, make sure that any sections it might
mention are initialized. */
if (s->addr_tree != NULL)
exp_init_os (s->addr_tree);
+
+ if (s->load_base != NULL)
+ exp_init_os (s->load_base);
}
/* Make sure that all output sections mentioned in an expression are
initialized. */
static void
-exp_init_os (exp)
- etree_type *exp;
+exp_init_os (etree_type *exp)
{
switch (exp->type.node_class)
{
exp_init_os (exp->trinary.rhs);
break;
+ case etree_assert:
+ exp_init_os (exp->assert_s.child);
+ break;
+
case etree_unary:
exp_init_os (exp->unary.child);
break;
static struct bfd_hash_table already_linked_table;
static void
-section_already_linked (abfd, sec, data)
- bfd *abfd;
- asection *sec;
- PTR data;
+section_already_linked (bfd *abfd, asection *sec, void *data)
{
- lang_input_statement_type *entry = (lang_input_statement_type *) data;
+ lang_input_statement_type *entry = data;
flagword flags;
const char *name;
struct already_linked *l;
discard all sections. */
if (entry->just_syms_flag)
{
- sec->output_section = bfd_abs_section_ptr;
- sec->output_offset = sec->vma;
+ bfd_link_just_syms (sec, &link_info);
return;
}
of having link once sections in the first place.
Also, not merging link once sections in a relocatable link
- causes trouble for MIPS ELF, which relies in link once semantics
+ causes trouble for MIPS ELF, which relies on link once semantics
to handle the .reginfo section correctly. */
name = bfd_get_section_name (abfd, sec);
already_linked_list =
((struct already_linked_hash_entry *)
- bfd_hash_lookup (&already_linked_table, name, true, false));
+ bfd_hash_lookup (&already_linked_table, name, TRUE, FALSE));
for (l = already_linked_list->entry; l != NULL; l = l->next)
{
break;
}
- /* Set the output_section field so that wild_doit does not
- create a lang_input_section structure for this section.
- Since there might be a symbol in the section being
- discarded, we must retain a pointer to the section which
- we are really going to use. */
+ /* Set the output_section field so that lang_add_section
+ does not create a lang_input_section structure for this
+ section. Since there might be a symbol in the section
+ being discarded, we must retain a pointer to the section
+ which we are really going to use. */
sec->output_section = bfd_abs_section_ptr;
sec->kept_section = l->sec;
+ if (flags & SEC_GROUP)
+ bfd_discard_group (abfd, sec);
+
return;
}
}
/* This is the first section with this name. Record it. Allocate
the memory from the same obstack as the hash table is kept in. */
- l = ((struct already_linked *)
- bfd_hash_allocate (&already_linked_table, sizeof *l));
+ l = bfd_hash_allocate (&already_linked_table, sizeof *l);
l->sec = sec;
l->next = already_linked_list->entry;
initialize the table, fill in an entry and remove the table. */
static struct bfd_hash_entry *
-already_linked_newfunc (entry, table, string)
- struct bfd_hash_entry *entry ATTRIBUTE_UNUSED;
- struct bfd_hash_table *table;
- const char *string ATTRIBUTE_UNUSED;
+already_linked_newfunc (struct bfd_hash_entry *entry ATTRIBUTE_UNUSED,
+ struct bfd_hash_table *table,
+ const char *string ATTRIBUTE_UNUSED)
{
struct already_linked_hash_entry *ret =
bfd_hash_allocate (table, sizeof (struct already_linked_hash_entry));
ret->entry = NULL;
- return (struct bfd_hash_entry *) ret;
+ return &ret->root;
}
static void
-already_linked_table_init ()
+already_linked_table_init (void)
{
if (! bfd_hash_table_init_n (&already_linked_table,
already_linked_newfunc,
}
static void
-already_linked_table_free ()
+already_linked_table_free (void)
{
bfd_hash_table_free (&already_linked_table);
}
explicit actions, like foo.o(.text), bar.o(.text) and
foo.o(.text, .data). */
-/* Return true if the PATTERN argument is a wildcard pattern.
+/* Return TRUE if the PATTERN argument is a wildcard pattern.
Although backslashes are treated specially if a pattern contains
wildcards, we do not consider the mere presence of a backslash to
- be enough to cause the the pattern to be treated as a wildcard.
+ be enough to cause the pattern to be treated as a wildcard.
That lets us handle DOS filenames more naturally. */
-static boolean
-wildcardp (pattern)
- const char *pattern;
+static bfd_boolean
+wildcardp (const char *pattern)
{
const char *s;
if (*s == '?'
|| *s == '*'
|| *s == '[')
- return true;
- return false;
+ return TRUE;
+ return FALSE;
}
/* Add SECTION to the output section OUTPUT. Do this by creating a
input file which holds SECTION. */
void
-wild_doit (ptr, section, output, file)
- lang_statement_list_type *ptr;
- asection *section;
- lang_output_section_statement_type *output;
- lang_input_statement_type *file;
+lang_add_section (lang_statement_list_type *ptr,
+ asection *section,
+ lang_output_section_statement_type *output,
+ lang_input_statement_type *file)
{
flagword flags;
- boolean discard;
+ bfd_boolean discard;
flags = bfd_get_section_flags (section->owner, section);
- discard = false;
+ discard = FALSE;
- /* If we are doing a final link, discard sections marked with
- SEC_EXCLUDE. */
- if (! link_info.relocateable
- && (flags & SEC_EXCLUDE) != 0)
- discard = true;
+ /* Discard sections marked with SEC_EXCLUDE if we are doing a final
+ link. Discard debugging sections marked with SEC_EXCLUDE on a
+ relocatable link too. */
+ if ((flags & SEC_EXCLUDE) != 0
+ && ((flags & SEC_DEBUGGING) != 0 || !link_info.relocatable))
+ discard = TRUE;
/* Discard input sections which are assigned to a section named
DISCARD_SECTION_NAME. */
if (strcmp (output->name, DISCARD_SECTION_NAME) == 0)
- discard = true;
+ discard = TRUE;
/* Discard debugging sections if we are stripping debugging
information. */
if ((link_info.strip == strip_debugger || link_info.strip == strip_all)
&& (flags & SEC_DEBUGGING) != 0)
- discard = true;
+ discard = TRUE;
if (discard)
{
if (section->output_section == NULL)
{
- boolean first;
+ bfd_boolean first;
lang_input_section_type *new;
flagword flags;
if (output->bfd_section == NULL)
- {
- init_os (output);
- first = true;
- }
- else
- first = false;
+ init_os (output);
+
+ first = ! output->bfd_section->linker_has_input;
+ output->bfd_section->linker_has_input = 1;
/* Add a section reference to the list. */
new = new_stat (lang_input_section, ptr);
format targets, .text$foo sections go into .text and it's odd
to see .text with SEC_LINK_ONCE set. */
- if (! link_info.relocateable)
+ if (! link_info.relocatable)
flags &= ~ (SEC_LINK_ONCE | SEC_LINK_DUPLICATES);
/* If this is not the first input section, and the SEC_READONLY
if (section->alignment_power > output->bfd_section->alignment_power)
output->bfd_section->alignment_power = section->alignment_power;
- /* If supplied an aligment, then force it. */
+ /* If supplied an alignment, then force it. */
if (output->section_alignment != -1)
output->bfd_section->alignment_power = output->section_alignment;
new section should just go at the end of the current list. */
static lang_statement_union_type *
-wild_sort (wild, file, section)
- lang_wild_statement_type *wild;
- lang_input_statement_type *file;
- asection *section;
+wild_sort (lang_wild_statement_type *wild,
+ struct wildcard_list *sec,
+ lang_input_statement_type *file,
+ asection *section)
{
const char *section_name;
lang_statement_union_type *l;
- if (! wild->filenames_sorted && ! wild->sections_sorted)
+ if (!wild->filenames_sorted && (sec == NULL || !sec->spec.sorted))
return NULL;
section_name = bfd_get_section_name (file->the_bfd, section);
- for (l = wild->children.head; l != NULL; l = l->next)
+ for (l = wild->children.head; l != NULL; l = l->header.next)
{
lang_input_section_type *ls;
if (wild->filenames_sorted)
{
const char *fn, *ln;
- boolean fa, la;
+ bfd_boolean fa, la;
int i;
/* The PE support for the .idata section as generated by
&& bfd_my_archive (file->the_bfd) != NULL)
{
fn = bfd_get_filename (bfd_my_archive (file->the_bfd));
- fa = true;
+ fa = TRUE;
}
else
{
fn = file->filename;
- fa = false;
+ fa = FALSE;
}
if (ls->ifile->the_bfd != NULL
&& bfd_my_archive (ls->ifile->the_bfd) != NULL)
{
ln = bfd_get_filename (bfd_my_archive (ls->ifile->the_bfd));
- la = true;
+ la = TRUE;
}
else
{
ln = ls->ifile->filename;
- la = false;
+ la = FALSE;
}
i = strcmp (fn, ln);
/* Here either the files are not sorted by name, or we are
looking at the sections for this file. */
- if (wild->sections_sorted)
+ if (sec != NULL && sec->spec.sorted)
{
if (strcmp (section_name,
bfd_get_section_name (ls->ifile->the_bfd,
NULL, in which case it is a wild card. */
static void
-output_section_callback (ptr, section, file, output)
- lang_wild_statement_type *ptr;
- asection *section;
- lang_input_statement_type *file;
- PTR output;
+output_section_callback (lang_wild_statement_type *ptr,
+ struct wildcard_list *sec,
+ asection *section,
+ lang_input_statement_type *file,
+ void *output)
{
lang_statement_union_type *before;
+ /* Exclude sections that match UNIQUE_SECTION_LIST. */
+ if (unique_section_p (bfd_get_section_name (file->the_bfd, section)))
+ return;
+
/* If the wild pattern was marked KEEP, the member sections
should be as well. */
if (ptr->keep_sections)
section->flags |= SEC_KEEP;
- before = wild_sort (ptr, file, section);
+ before = wild_sort (ptr, sec, file, section);
/* Here BEFORE points to the lang_input_section which
should follow the one we are about to add. If BEFORE
of the current list. */
if (before == NULL)
- wild_doit (&ptr->children, section,
- (lang_output_section_statement_type *) output,
- file);
+ lang_add_section (&ptr->children, section,
+ (lang_output_section_statement_type *) output,
+ file);
else
{
lang_statement_list_type list;
lang_statement_union_type **pp;
lang_list_init (&list);
- wild_doit (&list, section,
- (lang_output_section_statement_type *) output,
- file);
+ lang_add_section (&list, section,
+ (lang_output_section_statement_type *) output,
+ file);
/* If we are discarding the section, LIST.HEAD will
be NULL. */
if (list.head != NULL)
{
- ASSERT (list.head->next == NULL);
+ ASSERT (list.head->header.next == NULL);
for (pp = &ptr->children.head;
*pp != before;
- pp = &(*pp)->next)
+ pp = &(*pp)->header.next)
ASSERT (*pp != NULL);
- list.head->next = *pp;
+ list.head->header.next = *pp;
*pp = list.head;
}
}
already and had its symbols read. If not then we'll read it. */
static lang_input_statement_type *
-lookup_name (name)
- const char *name;
+lookup_name (const char *name)
{
lang_input_statement_type *search;
for (search = (lang_input_statement_type *) input_file_chain.head;
- search != (lang_input_statement_type *) NULL;
+ search != NULL;
search = (lang_input_statement_type *) search->next_real_file)
{
- if (search->filename == (char *) NULL && name == (char *) NULL)
+ /* Use the local_sym_name as the name of the file that has
+ already been loaded as filename might have been transformed
+ via the search directory lookup mechanism. */
+ const char * filename = search->local_sym_name;
+
+ if (filename == NULL && name == NULL)
return search;
- if (search->filename != (char *) NULL
- && name != (char *) NULL
- && strcmp (search->filename, name) == 0)
+ if (filename != NULL
+ && name != NULL
+ && strcmp (filename, name) == 0)
break;
}
- if (search == (lang_input_statement_type *) NULL)
- search = new_afile (name, lang_input_file_is_file_enum, default_target,
- false);
+ if (search == NULL)
+ search = new_afile (name, lang_input_file_is_search_file_enum, default_target,
+ FALSE);
/* If we have already added this file, or this file is not real
(FIXME: can that ever actually happen?) or the name is NULL
(FIXME: can that ever actually happen?) don't add this file. */
if (search->loaded
|| ! search->real
- || search->filename == (const char *) NULL)
+ || search->filename == NULL)
return search;
- load_symbols (search, (lang_statement_list_type *) NULL);
+ if (! load_symbols (search, NULL))
+ return NULL;
return search;
}
/* Get the symbols for an input file. */
-static void
-load_symbols (entry, place)
- lang_input_statement_type *entry;
- lang_statement_list_type *place;
+static bfd_boolean
+load_symbols (lang_input_statement_type *entry,
+ lang_statement_list_type *place)
{
char **matching;
if (entry->loaded)
- return;
+ return TRUE;
ldfile_open_file (entry);
{
bfd_error_type err;
lang_statement_list_type *hold;
+ bfd_boolean bad_load = TRUE;
+ bfd_boolean save_ldlang_sysrooted_script;
err = bfd_get_error ();
+
+ /* See if the emulation has some special knowledge. */
+ if (ldemul_unrecognized_file (entry))
+ return TRUE;
+
if (err == bfd_error_file_ambiguously_recognized)
{
char **p;
}
else if (err != bfd_error_file_not_recognized
|| place == NULL)
- einfo (_("%F%B: file not recognized: %E\n"), entry->the_bfd);
+ einfo (_("%F%B: file not recognized: %E\n"), entry->the_bfd);
+ else
+ bad_load = FALSE;
bfd_close (entry->the_bfd);
entry->the_bfd = NULL;
- /* See if the emulation has some special knowledge. */
-
- if (ldemul_unrecognized_file (entry))
- return;
-
/* Try to interpret the file as a linker script. */
-
ldfile_open_command_file (entry->filename);
hold = stat_ptr;
stat_ptr = place;
+ save_ldlang_sysrooted_script = ldlang_sysrooted_script;
+ ldlang_sysrooted_script = entry->sysrooted;
- ldfile_assumed_script = true;
+ ldfile_assumed_script = TRUE;
parser_input = input_script;
yyparse ();
- ldfile_assumed_script = false;
+ ldfile_assumed_script = FALSE;
+ ldlang_sysrooted_script = save_ldlang_sysrooted_script;
stat_ptr = hold;
- return;
+ return ! bad_load;
}
if (ldemul_recognized_file (entry))
- return;
+ return TRUE;
/* We don't call ldlang_add_file for an archive. Instead, the
add_symbols entry point will call ldlang_add_file, via the
case bfd_archive:
if (entry->whole_archive)
{
- bfd *member = bfd_openr_next_archived_file (entry->the_bfd,
- (bfd *) NULL);
- while (member != NULL)
+ bfd *member = NULL;
+ bfd_boolean loaded = TRUE;
+
+ for (;;)
{
+ member = bfd_openr_next_archived_file (entry->the_bfd, member);
+
+ if (member == NULL)
+ break;
+
if (! bfd_check_format (member, bfd_object))
- einfo (_("%F%B: object %B in archive is not object\n"),
- entry->the_bfd, member);
+ {
+ einfo (_("%F%B: member %B in archive is not an object\n"),
+ entry->the_bfd, member);
+ loaded = FALSE;
+ }
+
if (! ((*link_info.callbacks->add_archive_element)
(&link_info, member, "--whole-archive")))
abort ();
+
if (! bfd_link_add_symbols (member, &link_info))
- einfo (_("%F%B: could not read symbols: %E\n"), member);
- member = bfd_openr_next_archived_file (entry->the_bfd,
- member);
+ {
+ einfo (_("%F%B: could not read symbols: %E\n"), member);
+ loaded = FALSE;
+ }
}
- entry->loaded = true;
-
- return;
+ entry->loaded = loaded;
+ return loaded;
}
+ break;
}
- if (! bfd_link_add_symbols (entry->the_bfd, &link_info))
+ if (bfd_link_add_symbols (entry->the_bfd, &link_info))
+ entry->loaded = TRUE;
+ else
einfo (_("%F%B: could not read symbols: %E\n"), entry->the_bfd);
- entry->loaded = true;
+ return entry->loaded;
}
-/* Handle a wild statement. SECTION or FILE or both may be NULL,
- indicating that it is a wildcard. Separate lang_input_section
- statements are created for each part of the expansion; they are
- added after the wild statement S. OUTPUT is the output section. */
+/* Handle a wild statement. S->FILENAME or S->SECTION_LIST or both
+ may be NULL, indicating that it is a wildcard. Separate
+ lang_input_section statements are created for each part of the
+ expansion; they are added after the wild statement S. OUTPUT is
+ the output section. */
static void
-wild (s, section, file, target, output)
- lang_wild_statement_type *s;
- const char *section;
- const char *file;
- const char *target ATTRIBUTE_UNUSED;
- lang_output_section_statement_type *output;
-{
- walk_wild (s, section, file, output_section_callback, (PTR) output);
-
- if (section != (char *) NULL
- && strcmp (section, "COMMON") == 0
- && default_common_section == NULL)
+wild (lang_wild_statement_type *s,
+ const char *target ATTRIBUTE_UNUSED,
+ lang_output_section_statement_type *output)
+{
+ struct wildcard_list *sec;
+
+ walk_wild (s, output_section_callback, output);
+
+ for (sec = s->section_list; sec != NULL; sec = sec->next)
{
- /* Remember the section that common is going to in case we later
- get something which doesn't know where to put it. */
- default_common_section = output;
+ if (default_common_section != NULL)
+ break;
+ if (sec->spec.name != NULL && strcmp (sec->spec.name, "COMMON") == 0)
+ {
+ /* Remember the section that common is going to in case we
+ later get something which doesn't know where to put it. */
+ default_common_section = output;
+ }
}
}
-/* Return true iff target is the sought target. */
+/* Return TRUE iff target is the sought target. */
static int
-get_target (target, data)
- const bfd_target *target;
- PTR data;
+get_target (const bfd_target *target, void *data)
{
- const char *sought = (const char *) data;
+ const char *sought = data;
return strcmp (target->name, sought) == 0;
}
/* Like strcpy() but convert to lower case as well. */
static void
-stricpy (dest, src)
- char *dest;
- char *src;
+stricpy (char *dest, char *src)
{
char c;
while ((c = *src++) != 0)
- {
- if (isupper ((unsigned char) c))
- c = tolower (c);
-
- *dest++ = c;
- }
+ *dest++ = TOLOWER (c);
*dest = 0;
}
-/* Remove the first occurance of needle (if any) in haystack
+/* Remove the first occurrence of needle (if any) in haystack
from haystack. */
static void
-strcut (haystack, needle)
- char *haystack;
- char *needle;
+strcut (char *haystack, char *needle)
{
haystack = strstr (haystack, needle);
Return a value indicating how "similar" they are. */
static int
-name_compare (first, second)
- char *first;
- char *second;
+name_compare (char *first, char *second)
{
char *copy1;
char *copy2;
stricpy (copy1, first);
stricpy (copy2, second);
- /* Remove and endian strings from the name. */
+ /* Remove size and endian strings from the name. */
strcut (copy1, "big");
strcut (copy1, "little");
strcut (copy2, "big");
match to the original output target. */
static int
-closest_target_match (target, data)
- const bfd_target *target;
- PTR data;
+closest_target_match (const bfd_target *target, void *data)
{
- const bfd_target *original = (const bfd_target *) data;
+ const bfd_target *original = data;
if (command_line.endian == ENDIAN_BIG
&& target->byteorder != BFD_ENDIAN_BIG)
/* Oh dear, we now have two potential candidates for a successful match.
Compare their names and choose the better one. */
- if (name_compare (target->name, original->name) > name_compare (winner->name, original->name))
+ if (name_compare (target->name, original->name)
+ > name_compare (winner->name, original->name))
winner = target;
/* Keep on searching until wqe have checked them all. */
/* Return the BFD target format of the first input file. */
static char *
-get_first_input_target ()
+get_first_input_target (void)
{
char *target = NULL;
return target;
}
+const char *
+lang_get_output_target (void)
+{
+ const char *target;
+
+ /* Has the user told us which output format to use? */
+ if (output_target != NULL)
+ return output_target;
+
+ /* No - has the current target been set to something other than
+ the default? */
+ if (current_target != default_target)
+ return current_target;
+
+ /* No - can we determine the format of the first input file? */
+ target = get_first_input_target ();
+ if (target != NULL)
+ return target;
+
+ /* Failed - use the default output target. */
+ return default_target;
+}
+
/* Open the output file. */
static bfd *
-open_output (name)
- const char *name;
+open_output (const char *name)
{
bfd *output;
- /* Has the user told us which output format to use? */
- if (output_target == (char *) NULL)
- {
- /* No - has the current target been set to something other than
- the default? */
- if (current_target != default_target)
- output_target = current_target;
-
- /* No - can we determine the format of the first input file? */
- else
- {
- output_target = get_first_input_target ();
-
- /* Failed - use the default output target. */
- if (output_target == NULL)
- output_target = default_target;
- }
- }
+ output_target = lang_get_output_target ();
/* Has the user requested a particular endianness on the command
line? */
enum bfd_endian desired_endian;
/* Get the chosen target. */
- target = bfd_search_for_target (get_target, (PTR) output_target);
+ target = bfd_search_for_target (get_target, (void *) output_target);
/* If the target is not supported, we cannot do anything. */
if (target != NULL)
/* Try to find a target as similar as possible to
the default target, but which has the desired
endian characteristic. */
- (void) bfd_search_for_target (closest_target_match, (PTR) target);
+ bfd_search_for_target (closest_target_match,
+ (void *) target);
/* Oh dear - we could not find any targets that
satisfy our requirements. */
output = bfd_openw (name, output_target);
- if (output == (bfd *) NULL)
+ if (output == NULL)
{
if (bfd_get_error () == bfd_error_invalid_target)
einfo (_("%P%F: target %s not found\n"), output_target);
einfo (_("%P%F: cannot open output file %s: %E\n"), name);
}
- delete_output_file_on_failure = true;
+ delete_output_file_on_failure = TRUE;
#if 0
output->flags |= D_PAGED;
einfo (_("%P%F:%s: can not set architecture: %E\n"), name);
link_info.hash = bfd_link_hash_table_create (output);
- if (link_info.hash == (struct bfd_link_hash_table *) NULL)
+ if (link_info.hash == NULL)
einfo (_("%P%F: can not create link hash table: %E\n"));
bfd_set_gp_size (output, g_switch_value);
}
static void
-ldlang_open_output (statement)
- lang_statement_union_type *statement;
+ldlang_open_output (lang_statement_union_type *statement)
{
switch (statement->header.type)
{
case lang_output_statement_enum:
- ASSERT (output_bfd == (bfd *) NULL);
+ ASSERT (output_bfd == NULL);
output_bfd = open_output (statement->output_statement.name);
ldemul_set_output_arch ();
- if (config.magic_demand_paged && !link_info.relocateable)
+ if (config.magic_demand_paged && !link_info.relocatable)
output_bfd->flags |= D_PAGED;
else
output_bfd->flags &= ~D_PAGED;
}
}
+/* Convert between addresses in bytes and sizes in octets.
+ For currently supported targets, octets_per_byte is always a power
+ of two, so we can use shifts. */
+#define TO_ADDR(X) ((X) >> opb_shift)
+#define TO_SIZE(X) ((X) << opb_shift)
+
+/* Support the above. */
+static unsigned int opb_shift = 0;
+
+static void
+init_opb (void)
+{
+ unsigned x = bfd_arch_mach_octets_per_byte (ldfile_output_architecture,
+ ldfile_output_machine);
+ opb_shift = 0;
+ if (x > 1)
+ while ((x & 1) == 0)
+ {
+ x >>= 1;
+ ++opb_shift;
+ }
+ ASSERT (x == 1);
+}
+
/* Open all the input files. */
static void
-open_input_bfds (s, force)
- lang_statement_union_type *s;
- boolean force;
+open_input_bfds (lang_statement_union_type *s, bfd_boolean force)
{
- for (; s != (lang_statement_union_type *) NULL; s = s->next)
+ for (; s != NULL; s = s->header.next)
{
switch (s->header.type)
{
/* Maybe we should load the file's symbols. */
if (s->wild_statement.filename
&& ! wildcardp (s->wild_statement.filename))
- (void) lookup_name (s->wild_statement.filename);
+ lookup_name (s->wild_statement.filename);
open_input_bfds (s->wild_statement.children.head, force);
break;
case lang_group_statement_enum:
do
{
undefs = link_info.hash->undefs_tail;
- open_input_bfds (s->group_statement.children.head, true);
+ open_input_bfds (s->group_statement.children.head, TRUE);
}
while (undefs != link_info.hash->undefs_tail);
}
if (s->input_statement.real)
{
lang_statement_list_type add;
- bfd_error_handler_type pfn;
s->input_statement.target = current_target;
&& s->input_statement.loaded
&& bfd_check_format (s->input_statement.the_bfd,
bfd_archive))
- s->input_statement.loaded = false;
-
- lang_list_init (& add);
+ s->input_statement.loaded = FALSE;
- /* We need to know if an error occurs whilst loading the
- symbols, since this means that a valid executable can
- not be produced. */
- pfn = bfd_set_error_handler (record_bfd_errors);
+ lang_list_init (&add);
- load_symbols (&s->input_statement, &add);
-
- bfd_set_error_handler (pfn);
+ if (! load_symbols (&s->input_statement, &add))
+ config.make_executable = FALSE;
if (add.head != NULL)
{
- *add.tail = s->next;
- s->next = add.head;
+ *add.tail = s->header.next;
+ s->header.next = add.head;
}
}
break;
section. */
static void
-lang_reasonable_defaults ()
+lang_reasonable_defaults (void)
{
#if 0
lang_output_section_statement_lookup (".text");
default_common_section = lang_output_section_statement_lookup (".bss");
- if (placed_commons == false)
+ if (!placed_commons)
{
lang_wild_statement_type *new =
new_stat (lang_wild_statement,
&default_common_section->children);
new->section_name = "COMMON";
- new->filename = (char *) NULL;
+ new->filename = NULL;
lang_list_init (&new->children);
}
#endif
}
-/* Add the supplied name to the symbol table as an undefined reference.
- Remove items from the chain as we open input bfds. */
-typedef struct ldlang_undef_chain_list
+/* Add a symbol to a hash of symbols used in DEFINED (NAME) expressions. */
+
+void
+lang_track_definedness (const char *name)
+{
+ if (bfd_hash_lookup (&lang_definedness_table, name, TRUE, FALSE) == NULL)
+ einfo (_("%P%F: bfd_hash_lookup failed creating symbol %s\n"), name);
+}
+
+/* New-function for the definedness hash table. */
+
+static struct bfd_hash_entry *
+lang_definedness_newfunc (struct bfd_hash_entry *entry,
+ struct bfd_hash_table *table ATTRIBUTE_UNUSED,
+ const char *name ATTRIBUTE_UNUSED)
+{
+ struct lang_definedness_hash_entry *ret
+ = (struct lang_definedness_hash_entry *) entry;
+
+ if (ret == NULL)
+ ret = (struct lang_definedness_hash_entry *)
+ bfd_hash_allocate (table, sizeof (struct lang_definedness_hash_entry));
+
+ if (ret == NULL)
+ einfo (_("%P%F: bfd_hash_allocate failed creating symbol %s\n"), name);
+
+ ret->iteration = -1;
+ return &ret->root;
+}
+
+/* Return the iteration when the definition of NAME was last updated. A
+ value of -1 means that the symbol is not defined in the linker script
+ or the command line, but may be defined in the linker symbol table. */
+
+int
+lang_symbol_definition_iteration (const char *name)
{
- struct ldlang_undef_chain_list *next;
- char *name;
-} ldlang_undef_chain_list_type;
+ struct lang_definedness_hash_entry *defentry
+ = (struct lang_definedness_hash_entry *)
+ bfd_hash_lookup (&lang_definedness_table, name, FALSE, FALSE);
+
+ /* We've already created this one on the presence of DEFINED in the
+ script, so it can't be NULL unless something is borked elsewhere in
+ the code. */
+ if (defentry == NULL)
+ FAIL ();
+
+ return defentry->iteration;
+}
+
+/* Update the definedness state of NAME. */
+
+void
+lang_update_definedness (const char *name, struct bfd_link_hash_entry *h)
+{
+ struct lang_definedness_hash_entry *defentry
+ = (struct lang_definedness_hash_entry *)
+ bfd_hash_lookup (&lang_definedness_table, name, FALSE, FALSE);
+
+ /* We don't keep track of symbols not tested with DEFINED. */
+ if (defentry == NULL)
+ return;
+
+ /* If the symbol was already defined, and not from an earlier statement
+ iteration, don't update the definedness iteration, because that'd
+ make the symbol seem defined in the linker script at this point, and
+ it wasn't; it was defined in some object. If we do anyway, DEFINED
+ would start to yield false before this point and the construct "sym =
+ DEFINED (sym) ? sym : X;" would change sym to X despite being defined
+ in an object. */
+ if (h->type != bfd_link_hash_undefined
+ && h->type != bfd_link_hash_common
+ && h->type != bfd_link_hash_new
+ && defentry->iteration == -1)
+ return;
+
+ defentry->iteration = lang_statement_iteration;
+}
+
+/* Add the supplied name to the symbol table as an undefined reference.
+ This is a two step process as the symbol table doesn't even exist at
+ the time the ld command line is processed. First we put the name
+ on a list, then, once the output file has been opened, transfer the
+ name to the symbol table. */
+
+typedef struct bfd_sym_chain ldlang_undef_chain_list_type;
-static ldlang_undef_chain_list_type *ldlang_undef_chain_list_head;
+#define ldlang_undef_chain_list_head entry_symbol.next
void
-ldlang_add_undef (name)
- const char *const name;
+ldlang_add_undef (const char *const name)
{
ldlang_undef_chain_list_type *new =
- ((ldlang_undef_chain_list_type *)
- stat_alloc (sizeof (ldlang_undef_chain_list_type)));
+ stat_alloc (sizeof (ldlang_undef_chain_list_type));
new->next = ldlang_undef_chain_list_head;
ldlang_undef_chain_list_head = new;
- new->name = buystring (name);
+ new->name = xstrdup (name);
+
+ if (output_bfd != NULL)
+ insert_undefined (new->name);
+}
+
+/* Insert NAME as undefined in the symbol table. */
+
+static void
+insert_undefined (const char *name)
+{
+ struct bfd_link_hash_entry *h;
+
+ h = bfd_link_hash_lookup (link_info.hash, name, TRUE, FALSE, 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;
+ h->u.undef.abfd = NULL;
+ bfd_link_add_undef (link_info.hash, h);
+ }
}
/* Run through the list of undefineds created above and place them
script file. */
static void
-lang_place_undefineds ()
+lang_place_undefineds (void)
{
ldlang_undef_chain_list_type *ptr;
- for (ptr = ldlang_undef_chain_list_head;
- ptr != (ldlang_undef_chain_list_type *) NULL;
- ptr = ptr->next)
- {
- struct bfd_link_hash_entry *h;
-
- h = bfd_link_hash_lookup (link_info.hash, ptr->name, true, false, true);
- if (h == (struct bfd_link_hash_entry *) NULL)
- einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
- if (h->type == bfd_link_hash_new)
- {
- h->type = bfd_link_hash_undefined;
- h->u.undef.abfd = NULL;
- bfd_link_add_undef (link_info.hash, h);
- }
- }
+ for (ptr = ldlang_undef_chain_list_head; ptr != NULL; ptr = ptr->next)
+ insert_undefined (ptr->name);
}
-/* Open input files and attatch to output sections. */
+/* Open input files and attach to output sections. */
static void
-map_input_to_output_sections (s, target, output_section_statement)
- lang_statement_union_type *s;
- const char *target;
- lang_output_section_statement_type *output_section_statement;
+map_input_to_output_sections
+ (lang_statement_union_type *s, const char *target,
+ lang_output_section_statement_type *output_section_statement)
{
- for (; s != (lang_statement_union_type *) NULL; s = s->next)
+ for (; s != NULL; s = s->header.next)
{
switch (s->header.type)
{
-
case lang_wild_statement_enum:
- wild (&s->wild_statement, s->wild_statement.section_name,
- s->wild_statement.filename, target,
- output_section_statement);
-
+ wild (&s->wild_statement, target, output_section_statement);
break;
case lang_constructors_statement_enum:
map_input_to_output_sections (constructor_list.head,
target,
output_section_statement);
break;
+ case lang_data_statement_enum:
+ /* Make sure that any sections mentioned in the expression
+ are initialized. */
+ exp_init_os (s->data_statement.exp);
+ /* FALLTHROUGH */
case lang_fill_statement_enum:
case lang_input_section_enum:
case lang_object_symbols_statement_enum:
- case lang_data_statement_enum:
case lang_reloc_statement_enum:
case lang_padding_statement_enum:
case lang_input_statement_enum:
}
}
+/* An output section might have been removed after its statement was
+ added. For example, ldemul_before_allocation can remove dynamic
+ sections if they turn out to be not needed. Clean them up here. */
+
static void
-print_output_section_statement (output_section_statement)
- lang_output_section_statement_type *output_section_statement;
+strip_excluded_output_sections (void)
+{
+ lang_statement_union_type *u;
+
+ for (u = lang_output_section_statement.head;
+ u != NULL;
+ u = u->output_section_statement.next)
+ {
+ lang_output_section_statement_type *os;
+ asection *s;
+
+ os = &u->output_section_statement;
+ s = os->bfd_section;
+ if (s != NULL && (s->flags & SEC_EXCLUDE) != 0)
+ {
+ asection **p;
+
+ os->bfd_section = NULL;
+
+ for (p = &output_bfd->sections; *p; p = &(*p)->next)
+ if (*p == s)
+ {
+ bfd_section_list_remove (output_bfd, p);
+ output_bfd->section_count--;
+ break;
+ }
+ }
+ }
+}
+
+static void
+print_output_section_statement
+ (lang_output_section_statement_type *output_section_statement)
{
asection *section = output_section_statement->bfd_section;
int len;
}
static void
-print_assignment (assignment, output_section)
- lang_assignment_statement_type *assignment;
- lang_output_section_statement_type *output_section;
+print_assignment (lang_assignment_statement_type *assignment,
+ lang_output_section_statement_type *output_section)
{
int i;
etree_value_type result;
result = exp_fold_tree (assignment->exp->assign.src, output_section,
lang_final_phase_enum, print_dot, &print_dot);
if (result.valid_p)
- minfo ("0x%V", result.value + result.section->bfd_section->vma);
+ {
+ const char *dst;
+ bfd_vma value;
+
+ value = result.value + result.section->bfd_section->vma;
+ dst = assignment->exp->assign.dst;
+
+ minfo ("0x%V", value);
+ if (dst[0] == '.' && dst[1] == 0)
+ print_dot = value;
+ }
else
{
minfo ("*undef* ");
}
static void
-print_input_statement (statm)
- lang_input_statement_type *statm;
+print_input_statement (lang_input_statement_type *statm)
{
- if (statm->filename != (char *) NULL)
+ if (statm->filename != NULL)
{
fprintf (config.map_file, "LOAD %s\n", statm->filename);
}
/* Print all symbols defined in a particular section. This is called
via bfd_link_hash_traverse. */
-static boolean
-print_one_symbol (hash_entry, ptr)
- struct bfd_link_hash_entry *hash_entry;
- PTR ptr;
+static bfd_boolean
+print_one_symbol (struct bfd_link_hash_entry *hash_entry, void *ptr)
{
- asection *sec = (asection *) ptr;
+ asection *sec = ptr;
if ((hash_entry->type == bfd_link_hash_defined
|| hash_entry->type == bfd_link_hash_defweak)
minfo (" %T\n", hash_entry->root.string);
}
- return true;
+ return TRUE;
}
/* Print information about an input section to the map file. */
static void
-print_input_section (in)
- lang_input_section_type *in;
+print_input_section (lang_input_section_type *in)
{
asection *i = in->section;
bfd_size_type size = i->_cooked_size != 0 ? i->_cooked_size : i->_raw_size;
- unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture,
- ldfile_output_machine);
+
+ init_opb ();
if (size != 0)
{
print_space ();
}
minfo ("0x%V %W %B\n",
- i->output_section->vma + i->output_offset, size / opb,
+ i->output_section->vma + i->output_offset, TO_ADDR (size),
i->owner);
if (i->_cooked_size != 0 && i->_cooked_size != i->_raw_size)
minfo (_("%W (size before relaxing)\n"), i->_raw_size);
}
- bfd_link_hash_traverse (link_info.hash, print_one_symbol, (PTR) i);
+ bfd_link_hash_traverse (link_info.hash, print_one_symbol, i);
- print_dot = i->output_section->vma + i->output_offset + size / opb;
+ print_dot = (i->output_section->vma + i->output_offset
+ + TO_ADDR (size));
}
}
}
static void
-print_fill_statement (fill)
- lang_fill_statement_type *fill;
-{
- fprintf (config.map_file, " FILL mask 0x%x\n", fill->fill);
+print_fill_statement (lang_fill_statement_type *fill)
+{
+ size_t size;
+ unsigned char *p;
+ fputs (" FILL mask 0x", config.map_file);
+ for (p = fill->fill->data, size = fill->fill->size; size != 0; p++, size--)
+ fprintf (config.map_file, "%02x", *p);
+ fputs ("\n", config.map_file);
}
static void
-print_data_statement (data)
- lang_data_statement_type *data;
+print_data_statement (lang_data_statement_type *data)
{
int i;
bfd_vma addr;
bfd_size_type size;
const char *name;
- unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture,
- ldfile_output_machine);
+ init_opb ();
for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++)
print_space ();
print_nl ();
- print_dot = addr + size / opb;
-
+ print_dot = addr + TO_ADDR (size);
}
/* Print an address statement. These are generated by options like
-Ttext. */
static void
-print_address_statement (address)
- lang_address_statement_type *address;
+print_address_statement (lang_address_statement_type *address)
{
minfo (_("Address of section %s set to "), address->section_name);
exp_print_tree (address->address);
/* Print a reloc statement. */
static void
-print_reloc_statement (reloc)
- lang_reloc_statement_type *reloc;
+print_reloc_statement (lang_reloc_statement_type *reloc)
{
int i;
bfd_vma addr;
bfd_size_type size;
- unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture,
- ldfile_output_machine);
+ init_opb ();
for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++)
print_space ();
print_nl ();
- print_dot = addr + size / opb;
+ print_dot = addr + TO_ADDR (size);
}
static void
-print_padding_statement (s)
- lang_padding_statement_type *s;
+print_padding_statement (lang_padding_statement_type *s)
{
int len;
bfd_vma addr;
- unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture,
- ldfile_output_machine);
+ init_opb ();
minfo (" *fill*");
len = sizeof " *fill*" - 1;
addr = s->output_offset;
if (s->output_section != NULL)
addr += s->output_section->vma;
- minfo ("0x%V %W", addr, s->size);
+ minfo ("0x%V %W ", addr, s->size);
- if (s->fill != 0)
- minfo (" %u", s->fill);
+ if (s->fill->size != 0)
+ {
+ size_t size;
+ unsigned char *p;
+ for (p = s->fill->data, size = s->fill->size; size != 0; p++, size--)
+ fprintf (config.map_file, "%02x", *p);
+ }
print_nl ();
- print_dot = addr + s->size / opb;
+ print_dot = addr + TO_ADDR (s->size);
}
static void
-print_wild_statement (w, os)
- lang_wild_statement_type *w;
- lang_output_section_statement_type *os;
+print_wild_statement (lang_wild_statement_type *w,
+ lang_output_section_statement_type *os)
{
+ struct wildcard_list *sec;
+
print_space ();
if (w->filenames_sorted)
minfo ("SORT(");
- if (w->exclude_filename_list != NULL)
- {
- name_list *tmp;
- minfo ("EXCLUDE_FILE ( %s", w->exclude_filename_list->name);
- for (tmp = w->exclude_filename_list->next; tmp; tmp = tmp->next)
- minfo (", %s", tmp->name);
- minfo (")");
- }
if (w->filename != NULL)
minfo ("%s", w->filename);
else
minfo (")");
minfo ("(");
- if (w->sections_sorted)
- minfo ("SORT(");
- if (w->section_name != NULL)
- minfo ("%s", w->section_name);
- else
- minfo ("*");
- if (w->sections_sorted)
- minfo (")");
+ for (sec = w->section_list; sec; sec = sec->next)
+ {
+ if (sec->spec.sorted)
+ minfo ("SORT(");
+ if (sec->spec.exclude_name_list != NULL)
+ {
+ name_list *tmp;
+ minfo ("EXCLUDE_FILE(%s", sec->spec.exclude_name_list->name);
+ for (tmp = sec->spec.exclude_name_list->next; tmp; tmp = tmp->next)
+ minfo (" %s", tmp->name);
+ minfo (") ");
+ }
+ if (sec->spec.name != NULL)
+ minfo ("%s", sec->spec.name);
+ else
+ minfo ("*");
+ if (sec->spec.sorted)
+ minfo (")");
+ if (sec->next)
+ minfo (" ");
+ }
minfo (")");
print_nl ();
/* Print a group statement. */
static void
-print_group (s, os)
- lang_group_statement_type *s;
- lang_output_section_statement_type *os;
+print_group (lang_group_statement_type *s,
+ lang_output_section_statement_type *os)
{
fprintf (config.map_file, "START GROUP\n");
print_statement_list (s->children.head, os);
This can be called for any statement type. */
static void
-print_statement_list (s, os)
- lang_statement_union_type *s;
- lang_output_section_statement_type *os;
+print_statement_list (lang_statement_union_type *s,
+ lang_output_section_statement_type *os)
{
while (s != NULL)
{
print_statement (s, os);
- s = s->next;
+ s = s->header.next;
}
}
This can be called for any statement type. */
static void
-print_statement (s, os)
- lang_statement_union_type *s;
- lang_output_section_statement_type *os;
+print_statement (lang_statement_union_type *s,
+ lang_output_section_statement_type *os)
{
switch (s->header.type)
{
}
static void
-print_statements ()
+print_statements (void)
{
print_statement_list (statement_list.head, abs_output_section);
}
Intended to be called from GDB. */
void
-dprint_statement (s, n)
- lang_statement_union_type *s;
- int n;
+dprint_statement (lang_statement_union_type *s, int n)
{
FILE *map_save = config.map_file;
while (s && --n >= 0)
{
print_statement (s, abs_output_section);
- s = s->next;
+ s = s->header.next;
}
}
config.map_file = map_save;
}
-static bfd_vma
-insert_pad (this_ptr, fill, power, output_section_statement, dot)
- lang_statement_union_type **this_ptr;
- fill_type fill;
- unsigned int power;
- asection *output_section_statement;
- bfd_vma dot;
-{
- /* Align this section first to the
- input sections requirement, then
- to the output section's requirement.
- If this alignment is > than any seen before,
- then record it too. Perform the alignment by
- inserting a magic 'padding' statement. */
-
- unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture,
- ldfile_output_machine);
- unsigned int alignment_needed = align_power (dot, power) - dot;
-
- if (alignment_needed != 0)
+static void
+insert_pad (lang_statement_union_type **ptr,
+ fill_type *fill,
+ unsigned int alignment_needed,
+ asection *output_section,
+ bfd_vma dot)
+{
+ static fill_type zero_fill = { 1, { 0 } };
+ lang_statement_union_type *pad;
+
+ pad = ((lang_statement_union_type *)
+ ((char *) ptr - offsetof (lang_statement_union_type, header.next)));
+ if (ptr != &statement_list.head
+ && pad->header.type == lang_padding_statement_enum
+ && pad->padding_statement.output_section == output_section)
{
- lang_statement_union_type *new =
- ((lang_statement_union_type *)
- stat_alloc (sizeof (lang_padding_statement_type)));
-
- /* Link into existing chain. */
- new->header.next = *this_ptr;
- *this_ptr = new;
- new->header.type = lang_padding_statement_enum;
- new->padding_statement.output_section = output_section_statement;
- new->padding_statement.output_offset =
- dot - output_section_statement->vma;
- new->padding_statement.fill = fill;
- new->padding_statement.size = alignment_needed * opb;
+ /* Use the existing pad statement. The above test on output
+ section is probably redundant, but it doesn't hurt to check. */
}
-
- /* Remember the most restrictive alignment. */
- if (power > output_section_statement->alignment_power)
+ else
{
- output_section_statement->alignment_power = power;
+ /* Make a new padding statement, linked into existing chain. */
+ pad = stat_alloc (sizeof (lang_padding_statement_type));
+ pad->header.next = *ptr;
+ *ptr = pad;
+ pad->header.type = lang_padding_statement_enum;
+ pad->padding_statement.output_section = output_section;
+ if (fill == NULL)
+ fill = &zero_fill;
+ pad->padding_statement.fill = fill;
}
- output_section_statement->_raw_size += alignment_needed * opb;
-
- return dot + alignment_needed;
+ pad->padding_statement.output_offset = dot - output_section->vma;
+ pad->padding_statement.size = alignment_needed;
+ output_section->_raw_size += alignment_needed;
}
/* Work out how much this section will move the dot point. */
static bfd_vma
-size_input_section (this_ptr, output_section_statement, fill, dot, relax)
- lang_statement_union_type **this_ptr;
- lang_output_section_statement_type *output_section_statement;
- fill_type fill;
- bfd_vma dot;
- boolean relax ATTRIBUTE_UNUSED;
+size_input_section (lang_statement_union_type **this_ptr,
+ lang_output_section_statement_type *output_section_statement,
+ fill_type *fill,
+ bfd_vma dot)
{
lang_input_section_type *is = &((*this_ptr)->input_section);
asection *i = is->section;
- unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture,
- ldfile_output_machine);
- if (is->ifile->just_syms_flag == false)
+ if (!is->ifile->just_syms_flag)
{
+ unsigned int alignment_needed;
+ asection *o;
+
+ /* Align this section first to the input sections requirement,
+ then to the output section's requirement. If this alignment
+ is greater than any seen before, then record it too. Perform
+ the alignment by inserting a magic 'padding' statement. */
+
if (output_section_statement->subsection_alignment != -1)
- i->alignment_power =
- output_section_statement->subsection_alignment;
+ i->alignment_power = output_section_statement->subsection_alignment;
+
+ o = output_section_statement->bfd_section;
+ if (o->alignment_power < i->alignment_power)
+ o->alignment_power = i->alignment_power;
- dot = insert_pad (this_ptr, fill, i->alignment_power,
- output_section_statement->bfd_section, dot);
+ alignment_needed = align_power (dot, i->alignment_power) - dot;
+
+ if (alignment_needed != 0)
+ {
+ insert_pad (this_ptr, fill, TO_SIZE (alignment_needed), o, dot);
+ dot += alignment_needed;
+ }
/* Remember where in the output section this input section goes. */
- i->output_offset = dot - output_section_statement->bfd_section->vma;
+ i->output_offset = dot - o->vma;
/* Mark how big the output section must be to contain this now. */
if (i->_cooked_size != 0)
- dot += i->_cooked_size / opb;
+ dot += TO_ADDR (i->_cooked_size);
else
- dot += i->_raw_size / opb;
- output_section_statement->bfd_section->_raw_size =
- (dot - output_section_statement->bfd_section->vma) * opb;
+ dot += TO_ADDR (i->_raw_size);
+ o->_raw_size = TO_SIZE (dot - o->vma);
}
else
{
}
#define IGNORE_SECTION(bfd, s) \
- (((bfd_get_section_flags (bfd, s) & (SEC_ALLOC | SEC_LOAD)) != (SEC_ALLOC | SEC_LOAD)) \
+ (((bfd_get_section_flags (bfd, s) & SEC_THREAD_LOCAL) \
+ ? ((bfd_get_section_flags (bfd, s) & (SEC_LOAD | SEC_NEVER_LOAD)) \
+ != SEC_LOAD) \
+ : ((bfd_get_section_flags (bfd, s) & (SEC_ALLOC | SEC_NEVER_LOAD)) \
+ != SEC_ALLOC)) \
|| bfd_section_size (bfd, s) == 0)
+
/* Check to see if any allocated sections overlap with other allocated
sections. This can happen when the linker script specifically specifies
the output section addresses of the two sections. */
static void
-lang_check_section_addresses ()
+lang_check_section_addresses (void)
{
asection *s;
- unsigned opb = bfd_octets_per_byte (output_bfd);
-
/* Scan all sections in the output list. */
for (s = output_bfd->sections; s != NULL; s = s->next)
/* We must check the sections' LMA addresses not their
VMA addresses because overlay sections can have
overlapping VMAs but they must have distinct LMAs. */
- s_start = bfd_section_lma (output_bfd, s);
+ s_start = bfd_section_lma (output_bfd, s);
os_start = bfd_section_lma (output_bfd, os);
- s_end = s_start + bfd_section_size (output_bfd, s) / opb - 1;
- os_end = os_start + bfd_section_size (output_bfd, os) / opb - 1;
+ s_end = s_start + TO_ADDR (bfd_section_size (output_bfd, s)) - 1;
+ os_end = os_start + TO_ADDR (bfd_section_size (output_bfd, os)) - 1;
/* Look for an overlap. */
if ((s_end < os_start) || (s_start > os_end))
}
}
-/* This variable indicates whether bfd_relax_section should be called
- again. */
-
-static boolean relax_again;
-
/* Make sure the new address is within the region. We explicitly permit the
current address to be at the exact end of the region when the address is
non-zero, in case the region is at the end of addressable memory and the
calculation wraps around. */
static void
-os_region_check (os, region, tree, base)
- lang_output_section_statement_type *os;
- struct memory_region_struct *region;
- etree_type *tree;
- bfd_vma base;
+os_region_check (lang_output_section_statement_type *os,
+ lang_memory_region_type *region,
+ etree_type *tree,
+ bfd_vma base)
{
if ((region->current < region->origin
|| (region->current - region->origin > region->length))
&& ((region->current != region->origin + region->length)
- || base == 0))
+ || base == 0))
{
- if (tree != (etree_type *) NULL)
- {
- einfo (_("%X%P: address 0x%v of %B section %s is not within region %s\n"),
- region->current,
- os->bfd_section->owner,
- os->bfd_section->name,
- region->name);
- }
+ if (tree != NULL)
+ {
+ einfo (_("%X%P: address 0x%v of %B section %s is not within region %s\n"),
+ region->current,
+ os->bfd_section->owner,
+ os->bfd_section->name,
+ region->name);
+ }
else
- {
- einfo (_("%X%P: region %s is full (%B section %s)\n"),
- region->name,
- os->bfd_section->owner,
- os->bfd_section->name);
- }
+ {
+ einfo (_("%X%P: region %s is full (%B section %s)\n"),
+ region->name,
+ os->bfd_section->owner,
+ os->bfd_section->name);
+ }
/* Reset the region pointer. */
region->current = region->origin;
}
/* Set the sizes for all the output sections. */
-bfd_vma
-lang_size_sections (s, output_section_statement, prev, fill, dot, relax)
- lang_statement_union_type *s;
- lang_output_section_statement_type *output_section_statement;
- lang_statement_union_type **prev;
- fill_type fill;
- bfd_vma dot;
- boolean relax;
+static bfd_vma
+lang_size_sections_1
+ (lang_statement_union_type *s,
+ lang_output_section_statement_type *output_section_statement,
+ lang_statement_union_type **prev,
+ fill_type *fill,
+ bfd_vma dot,
+ bfd_boolean *relax,
+ bfd_boolean check_regions)
{
- unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture,
- ldfile_output_machine);
-
/* Size up the sections from their constituent parts. */
- for (; s != (lang_statement_union_type *) NULL; s = s->next)
+ for (; s != NULL; s = s->header.next)
{
switch (s->header.type)
{
case lang_output_section_statement_enum:
{
bfd_vma after;
- lang_output_section_statement_type *os = &s->output_section_statement;
+ lang_output_section_statement_type *os;
+ os = &s->output_section_statement;
if (os->bfd_section == NULL)
/* This section was never actually created. */
break;
asection *input;
if (os->children.head == NULL
- || os->children.head->next != NULL
+ || os->children.head->header.next != NULL
|| os->children.head->header.type != lang_input_section_enum)
einfo (_("%P%X: Internal error on COFF shared library section %s\n"),
os->name);
}
else
{
- if (os->addr_tree == (etree_type *) NULL)
+ if (os->addr_tree == NULL)
{
/* No address specified for this section, get one
from the region specification. */
- if (os->region == (lang_memory_region_type *) NULL
+ if (os->region == NULL
|| (((bfd_get_section_flags (output_bfd, os->bfd_section)
& (SEC_ALLOC | SEC_LOAD)) != 0)
&& os->region->name[0] == '*'
- && strcmp (os->region->name, "*default*") == 0))
+ && strcmp (os->region->name, DEFAULT_MEMORY_REGION) == 0))
{
os->region = lang_memory_default (os->bfd_section);
}
/* If a loadable section is using the default memory
region, and some non default memory regions were
- defined, issue a warning. */
- if ((bfd_get_section_flags (output_bfd, os->bfd_section)
- & (SEC_ALLOC | SEC_LOAD)) != 0
- && ! link_info.relocateable
- && strcmp (os->region->name, "*default*") == 0
+ defined, issue an error message. */
+ if (!IGNORE_SECTION (output_bfd, os->bfd_section)
+ && ! link_info.relocatable
+ && check_regions
+ && strcmp (os->region->name, DEFAULT_MEMORY_REGION) == 0
&& lang_memory_region_list != NULL
- && (strcmp (lang_memory_region_list->name, "*default*") != 0
+ && (strcmp (lang_memory_region_list->name,
+ DEFAULT_MEMORY_REGION) != 0
|| lang_memory_region_list->next != NULL))
- einfo (_("%P: warning: no memory region specified for section `%s'\n"),
- bfd_get_section_name (output_bfd, os->bfd_section));
+ {
+ /* By default this is an error rather than just a
+ warning because if we allocate the section to the
+ default memory region we can end up creating an
+ excessively large binary, or even seg faulting when
+ attempting to perform a negative seek. See
+ http://sources.redhat.com/ml/binutils/2003-04/msg00423.html
+ for an example of this. This behaviour can be
+ overridden by the using the --no-check-sections
+ switch. */
+ if (command_line.check_section_addresses)
+ einfo (_("%P%F: error: no memory region specified for loadable section `%s'\n"),
+ bfd_get_section_name (output_bfd,
+ os->bfd_section));
+ else
+ einfo (_("%P: warning: no memory region specified for loadable section `%s'\n"),
+ bfd_get_section_name (output_bfd,
+ os->bfd_section));
+ }
dot = os->region->current;
bfd_vma olddot;
olddot = dot;
- dot = align_power (dot, os->bfd_section->alignment_power);
+ dot = align_power (dot,
+ os->bfd_section->alignment_power);
if (dot != olddot && config.warn_section_align)
einfo (_("%P: warning: changing start of section %s by %u bytes\n"),
{
etree_value_type r;
+ os->processed = -1;
r = exp_fold_tree (os->addr_tree,
abs_output_section,
lang_allocating_phase_enum,
dot, &dot);
- if (r.valid_p == false)
- {
- einfo (_("%F%S: non constant address expression for section %s\n"),
- os->name);
- }
+ os->processed = 0;
+
+ if (!r.valid_p)
+ einfo (_("%F%S: non constant or forward reference address expression for section %s\n"),
+ os->name);
+
dot = r.value + r.section->bfd_section->vma;
}
os->bfd_section->output_offset = 0;
}
- (void) lang_size_sections (os->children.head, os,
- &os->children.head,
- os->fill, dot, relax);
+ lang_size_sections_1 (os->children.head, os, &os->children.head,
+ os->fill, dot, relax, check_regions);
/* Put the section within the requested block size, or
align at the block boundary. */
- after = ALIGN_N (os->bfd_section->vma
- + os->bfd_section->_raw_size / opb,
- /* The coercion here is important, see ld.h. */
- (bfd_vma) os->block_value);
+ after = ((os->bfd_section->vma
+ + TO_ADDR (os->bfd_section->_raw_size)
+ + os->block_value - 1)
+ & - (bfd_vma) os->block_value);
if (bfd_is_abs_section (os->bfd_section))
ASSERT (after == os->bfd_section->vma);
else
- os->bfd_section->_raw_size =
- (after - os->bfd_section->vma) * opb;
- dot = os->bfd_section->vma + os->bfd_section->_raw_size / opb;
- os->processed = true;
+ os->bfd_section->_raw_size
+ = TO_SIZE (after - os->bfd_section->vma);
+
+ dot = os->bfd_section->vma;
+ /* .tbss sections effectively have zero size. */
+ if ((os->bfd_section->flags & SEC_HAS_CONTENTS) != 0
+ || (os->bfd_section->flags & SEC_THREAD_LOCAL) == 0
+ || link_info.relocatable)
+ dot += TO_ADDR (os->bfd_section->_raw_size);
+
+ os->processed = 1;
+
+ if (os->update_dot_tree != 0)
+ exp_fold_tree (os->update_dot_tree, abs_output_section,
+ lang_allocating_phase_enum, dot, &dot);
/* Update dot in the region ?
We only do this if the section is going to be allocated,
If the SEC_NEVER_LOAD bit is not set, it will affect the
addresses of sections after it. We have to update
dot. */
- if (os->region != (lang_memory_region_type *) NULL
+ if (os->region != NULL
&& ((bfd_get_section_flags (output_bfd, os->bfd_section)
& SEC_NEVER_LOAD) == 0
|| (bfd_get_section_flags (output_bfd, os->bfd_section)
{
os->region->current = dot;
- /* Make sure the new address is within the region. */
- os_region_check (os, os->region, os->addr_tree,
- os->bfd_section->vma);
+ if (check_regions)
+ /* Make sure the new address is within the region. */
+ os_region_check (os, os->region, os->addr_tree,
+ os->bfd_section->vma);
/* If there's no load address specified, use the run
region as the load region. */
if (os->lma_region == NULL && os->load_base == NULL)
os->lma_region = os->region;
- if (os->lma_region != NULL)
+ if (os->lma_region != NULL && os->lma_region != os->region)
{
- if (os->load_base != NULL)
- {
- einfo (_("%X%P: use an absolute load address or a load memory region, not both\n"));
- }
- else
- {
- /* Don't allocate twice. */
- if (os->lma_region != os->region)
- {
- /* Set load_base, which will be handled later. */
- os->load_base =
- exp_intop (os->lma_region->current);
- os->lma_region->current +=
- os->bfd_section->_raw_size / opb;
- os_region_check (os, os->lma_region, NULL,
- os->bfd_section->lma);
- }
- }
+ /* Set load_base, which will be handled later. */
+ os->load_base = exp_intop (os->lma_region->current);
+ os->lma_region->current +=
+ TO_ADDR (os->bfd_section->_raw_size);
+ if (check_regions)
+ os_region_check (os, os->lma_region, NULL,
+ os->bfd_section->lma);
}
}
}
break;
case lang_constructors_statement_enum:
- dot = lang_size_sections (constructor_list.head,
- output_section_statement,
- &s->wild_statement.children.head,
- fill,
- dot, relax);
+ dot = lang_size_sections_1 (constructor_list.head,
+ output_section_statement,
+ &s->wild_statement.children.head,
+ fill, dot, relax, check_regions);
break;
case lang_data_statement_enum:
s->data_statement.output_section =
output_section_statement->bfd_section;
+ /* We might refer to provided symbols in the expression, and
+ need to mark them as needed. */
+ exp_fold_tree (s->data_statement.exp, abs_output_section,
+ lang_allocating_phase_enum, dot, &dot);
+
switch (s->data_statement.type)
{
default:
size = BYTE_SIZE;
break;
}
- if (size < opb)
- size = opb;
- dot += size / opb;
+ if (size < TO_SIZE ((unsigned) 1))
+ size = TO_SIZE ((unsigned) 1);
+ dot += TO_ADDR (size);
output_section_statement->bfd_section->_raw_size += size;
/* The output section gets contents, and then we inspect for
any flags set in the input script which override any ALLOC. */
s->reloc_statement.output_section =
output_section_statement->bfd_section;
size = bfd_get_reloc_size (s->reloc_statement.howto);
- dot += size / opb;
+ dot += TO_ADDR (size);
output_section_statement->bfd_section->_raw_size += size;
}
break;
case lang_wild_statement_enum:
- dot = lang_size_sections (s->wild_statement.children.head,
- output_section_statement,
- &s->wild_statement.children.head,
- fill, dot, relax);
+ dot = lang_size_sections_1 (s->wild_statement.children.head,
+ output_section_statement,
+ &s->wild_statement.children.head,
+ fill, dot, relax, check_regions);
break;
}
else
{
- boolean again;
+ bfd_boolean again;
if (! bfd_relax_section (i->owner, i, &link_info, &again))
einfo (_("%P%F: can't relax section: %E\n"));
if (again)
- relax_again = true;
+ *relax = TRUE;
}
- dot = size_input_section (prev,
- output_section_statement,
- output_section_statement->fill,
- dot, relax);
+ dot = size_input_section (prev, output_section_statement,
+ output_section_statement->fill, dot);
}
break;
case lang_input_statement_enum:
if (newdot != dot)
{
- /* The assignment changed dot. Insert a pad. */
if (output_section_statement == abs_output_section)
{
/* If we don't have an output section, then just adjust
the default memory address. */
- lang_memory_region_lookup ("*default*")->current = newdot;
+ lang_memory_region_lookup (DEFAULT_MEMORY_REGION, FALSE)->current = newdot;
}
- else if (!relax)
+ else
{
- lang_statement_union_type *new =
- ((lang_statement_union_type *)
- stat_alloc (sizeof (lang_padding_statement_type)));
-
- /* Link into existing chain. */
- new->header.next = *prev;
- *prev = new;
- new->header.type = lang_padding_statement_enum;
- new->padding_statement.output_section =
- output_section_statement->bfd_section;
- new->padding_statement.output_offset =
- dot - output_section_statement->bfd_section->vma;
- new->padding_statement.fill = fill;
- new->padding_statement.size = (newdot - dot) * opb;
- output_section_statement->bfd_section->_raw_size +=
- new->padding_statement.size;
+ /* Insert a pad after this statement. We can't
+ put the pad before when relaxing, in case the
+ assignment references dot. */
+ insert_pad (&s->header.next, fill, TO_SIZE (newdot - dot),
+ output_section_statement->bfd_section, dot);
+
+ /* Don't neuter the pad below when relaxing. */
+ s = s->header.next;
}
+ /* If dot is advanced, this implies that the section should
+ have space allocated to it, unless the user has explicitly
+ stated that the section should never be loaded. */
+ if (!(output_section_statement->flags & (SEC_NEVER_LOAD | SEC_ALLOC)))
+ output_section_statement->bfd_section->flags |= SEC_ALLOC;
+
dot = newdot;
}
}
break;
case lang_padding_statement_enum:
- /* If we are relaxing, and this is not the first pass, some
- padding statements may have been inserted during previous
- passes. We may have to move the padding statement to a new
- location if dot has a different value at this point in this
- pass than it did at this point in the previous pass. */
- s->padding_statement.output_offset =
- dot - output_section_statement->bfd_section->vma;
- dot += s->padding_statement.size / opb;
- output_section_statement->bfd_section->_raw_size +=
- s->padding_statement.size;
+ /* If this is the first time lang_size_sections is called,
+ we won't have any padding statements. If this is the
+ second or later passes when relaxing, we should allow
+ padding to shrink. If padding is needed on this pass, it
+ will be added back in. */
+ s->padding_statement.size = 0;
+
+ /* Make sure output_offset is valid. If relaxation shrinks
+ the section and this pad isn't needed, it's possible to
+ have output_offset larger than the final size of the
+ section. bfd_set_section_contents will complain even for
+ a pad size of zero. */
+ s->padding_statement.output_offset
+ = dot - output_section_statement->bfd_section->vma;
break;
case lang_group_statement_enum:
- dot = lang_size_sections (s->group_statement.children.head,
- output_section_statement,
- &s->group_statement.children.head,
- fill, dot, relax);
+ dot = lang_size_sections_1 (s->group_statement.children.head,
+ output_section_statement,
+ &s->group_statement.children.head,
+ fill, dot, relax, check_regions);
break;
default:
FAIL ();
break;
- /* This can only get here when relaxing is turned on. */
-
+ /* We can only get here when relaxing is turned on. */
case lang_address_statement_enum:
break;
}
}
bfd_vma
-lang_do_assignments (s, output_section_statement, fill, dot)
- lang_statement_union_type *s;
- lang_output_section_statement_type *output_section_statement;
- fill_type fill;
- bfd_vma dot;
-{
- unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture,
- ldfile_output_machine);
+lang_size_sections
+ (lang_statement_union_type *s,
+ lang_output_section_statement_type *output_section_statement,
+ lang_statement_union_type **prev,
+ fill_type *fill,
+ bfd_vma dot,
+ bfd_boolean *relax,
+ bfd_boolean check_regions)
+{
+ bfd_vma result;
+ asection *o;
+
+ /* Callers of exp_fold_tree need to increment this. */
+ lang_statement_iteration++;
+
+ exp_data_seg.phase = exp_dataseg_none;
+ result = lang_size_sections_1 (s, output_section_statement, prev, fill,
+ dot, relax, check_regions);
+ if (exp_data_seg.phase == exp_dataseg_end_seen)
+ {
+ /* If DATA_SEGMENT_ALIGN DATA_SEGMENT_END pair was seen, check whether
+ a page could be saved in the data segment. */
+ bfd_vma first, last;
+
+ first = -exp_data_seg.base & (exp_data_seg.pagesize - 1);
+ last = exp_data_seg.end & (exp_data_seg.pagesize - 1);
+ if (first && last
+ && ((exp_data_seg.base & ~(exp_data_seg.pagesize - 1))
+ != (exp_data_seg.end & ~(exp_data_seg.pagesize - 1)))
+ && first + last <= exp_data_seg.pagesize)
+ {
+ exp_data_seg.phase = exp_dataseg_adjust;
+ lang_statement_iteration++;
+ result = lang_size_sections_1 (s, output_section_statement, prev,
+ fill, dot, relax, check_regions);
+ }
+ }
+
+ /* Some backend relaxers want to refer to the output section size. Give
+ them a section size that does not change on the next call while they
+ relax. We can't set this at top because lang_reset_memory_regions
+ which is called before we get here, sets _raw_size to 0 on relaxing
+ rounds. */
+ for (o = output_bfd->sections; o != NULL; o = o->next)
+ o->_cooked_size = o->_raw_size;
+
+ return result;
+}
+
+/* Worker function for lang_do_assignments. Recursiveness goes here. */
- for (; s != (lang_statement_union_type *) NULL; s = s->next)
+static bfd_vma
+lang_do_assignments_1
+ (lang_statement_union_type *s,
+ lang_output_section_statement_type *output_section_statement,
+ fill_type *fill,
+ bfd_vma dot)
+{
+ for (; s != NULL; s = s->header.next)
{
switch (s->header.type)
{
case lang_constructors_statement_enum:
- dot = lang_do_assignments (constructor_list.head,
- output_section_statement,
- fill,
- dot);
+ dot = lang_do_assignments_1 (constructor_list.head,
+ output_section_statement,
+ fill,
+ dot);
break;
case lang_output_section_statement_enum:
{
- lang_output_section_statement_type *os =
- &(s->output_section_statement);
+ lang_output_section_statement_type *os;
+ os = &(s->output_section_statement);
if (os->bfd_section != NULL)
{
dot = os->bfd_section->vma;
- (void) lang_do_assignments (os->children.head, os,
- os->fill, dot);
- dot = os->bfd_section->vma + os->bfd_section->_raw_size / opb;
+ lang_do_assignments_1 (os->children.head, os, os->fill, dot);
+ dot = (os->bfd_section->vma
+ + TO_ADDR (os->bfd_section->_raw_size));
}
if (os->load_base)
break;
case lang_wild_statement_enum:
- dot = lang_do_assignments (s->wild_statement.children.head,
- output_section_statement,
- fill, dot);
+ dot = lang_do_assignments_1 (s->wild_statement.children.head,
+ output_section_statement,
+ fill, dot);
break;
value = exp_fold_tree (s->data_statement.exp,
abs_output_section,
lang_final_phase_enum, dot, &dot);
- s->data_statement.value = value.value;
- if (value.valid_p == false)
+ if (!value.valid_p)
einfo (_("%F%P: invalid data statement\n"));
+ s->data_statement.value
+ = value.value + value.section->bfd_section->vma;
}
- {
- unsigned int size;
+ {
+ unsigned int size;
switch (s->data_statement.type)
{
default:
size = BYTE_SIZE;
break;
}
- if (size < opb)
- size = opb;
- dot += size / opb;
+ if (size < TO_SIZE ((unsigned) 1))
+ size = TO_SIZE ((unsigned) 1);
+ dot += TO_ADDR (size);
}
break;
abs_output_section,
lang_final_phase_enum, dot, &dot);
s->reloc_statement.addend_value = value.value;
- if (value.valid_p == false)
+ if (!value.valid_p)
einfo (_("%F%P: invalid reloc statement\n"));
}
- dot += bfd_get_reloc_size (s->reloc_statement.howto) / opb;
+ dot += TO_ADDR (bfd_get_reloc_size (s->reloc_statement.howto));
break;
case lang_input_section_enum:
asection *in = s->input_section.section;
if (in->_cooked_size != 0)
- dot += in->_cooked_size / opb;
+ dot += TO_ADDR (in->_cooked_size);
else
- dot += in->_raw_size / opb;
+ dot += TO_ADDR (in->_raw_size);
}
break;
break;
case lang_padding_statement_enum:
- dot += s->padding_statement.size / opb;
+ dot += TO_ADDR (s->padding_statement.size);
break;
case lang_group_statement_enum:
- dot = lang_do_assignments (s->group_statement.children.head,
- output_section_statement,
- fill, dot);
+ dot = lang_do_assignments_1 (s->group_statement.children.head,
+ output_section_statement,
+ fill, dot);
break;
return dot;
}
+void
+lang_do_assignments (lang_statement_union_type *s,
+ lang_output_section_statement_type *output_section_statement,
+ fill_type *fill,
+ bfd_vma dot)
+{
+ /* Callers of exp_fold_tree need to increment this. */
+ lang_statement_iteration++;
+ lang_do_assignments_1 (s, output_section_statement, fill, dot);
+}
+
/* Fix any .startof. or .sizeof. symbols. When the assemblers see the
operator .startof. (section_name), it produces an undefined symbol
.startof.section_name. Similarly, when it sees
such symbols, and set them to the correct value. */
static void
-lang_set_startof ()
+lang_set_startof (void)
{
asection *s;
- if (link_info.relocateable)
+ if (link_info.relocatable)
return;
for (s = output_bfd->sections; s != NULL; s = s->next)
buf = xmalloc (10 + strlen (secname));
sprintf (buf, ".startof.%s", secname);
- h = bfd_link_hash_lookup (link_info.hash, buf, false, false, true);
+ h = bfd_link_hash_lookup (link_info.hash, buf, FALSE, FALSE, TRUE);
if (h != NULL && h->type == bfd_link_hash_undefined)
{
h->type = bfd_link_hash_defined;
}
sprintf (buf, ".sizeof.%s", secname);
- h = bfd_link_hash_lookup (link_info.hash, buf, false, false, true);
+ h = bfd_link_hash_lookup (link_info.hash, buf, FALSE, FALSE, TRUE);
if (h != NULL && h->type == bfd_link_hash_undefined)
{
- unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture,
- ldfile_output_machine);
h->type = bfd_link_hash_defined;
if (s->_cooked_size != 0)
- h->u.def.value = s->_cooked_size / opb;
+ h->u.def.value = TO_ADDR (s->_cooked_size);
else
- h->u.def.value = s->_raw_size / opb;
+ h->u.def.value = TO_ADDR (s->_raw_size);
h->u.def.section = bfd_abs_section_ptr;
}
}
static void
-lang_finish ()
+lang_finish (void)
{
struct bfd_link_hash_entry *h;
- boolean warn;
+ bfd_boolean warn;
- if (link_info.relocateable || link_info.shared)
- warn = false;
+ if (link_info.relocatable || link_info.shared)
+ warn = FALSE;
else
- warn = true;
+ warn = TRUE;
- if (entry_symbol == (char *) NULL)
+ if (entry_symbol.name == NULL)
{
/* No entry has been specified. Look for start, but don't warn
if we don't find it. */
- entry_symbol = "start";
- warn = false;
+ entry_symbol.name = "start";
+ warn = FALSE;
}
- h = bfd_link_hash_lookup (link_info.hash, entry_symbol, false, false, true);
- if (h != (struct bfd_link_hash_entry *) NULL
+ h = bfd_link_hash_lookup (link_info.hash, entry_symbol.name,
+ FALSE, FALSE, TRUE);
+ if (h != NULL
&& (h->type == bfd_link_hash_defined
|| h->type == bfd_link_hash_defweak)
&& h->u.def.section->output_section != NULL)
h->u.def.section->output_section)
+ h->u.def.section->output_offset);
if (! bfd_set_start_address (output_bfd, val))
- einfo (_("%P%F:%s: can't set start address\n"), entry_symbol);
+ einfo (_("%P%F:%s: can't set start address\n"), entry_symbol.name);
}
else
{
/* We couldn't find the entry symbol. Try parsing it as a
number. */
- val = bfd_scan_vma (entry_symbol, &send, 0);
+ val = bfd_scan_vma (entry_symbol.name, &send, 0);
if (*send == '\0')
{
if (! bfd_set_start_address (output_bfd, val))
/* Can't find the entry symbol, and it's not a number. Use
the first address in the text section. */
- ts = bfd_get_section_by_name (output_bfd, ".text");
- if (ts != (asection *) NULL)
+ ts = bfd_get_section_by_name (output_bfd, entry_section);
+ if (ts != NULL)
{
if (warn)
einfo (_("%P: warning: cannot find entry symbol %s; defaulting to %V\n"),
- entry_symbol, bfd_get_section_vma (output_bfd, ts));
+ entry_symbol.name,
+ bfd_get_section_vma (output_bfd, ts));
if (! bfd_set_start_address (output_bfd,
bfd_get_section_vma (output_bfd,
ts)))
{
if (warn)
einfo (_("%P: warning: cannot find entry symbol %s; not setting start address\n"),
- entry_symbol);
+ entry_symbol.name);
}
}
}
-}
-
-
-/* This is the routine to handle BFD error messages. */
-
-#ifdef ANSI_PROTOTYPES
-
-static void
-record_bfd_errors (const char *s, ...)
-{
- va_list p;
-
- einfo ("%P: ");
- va_start (p, s);
-
- vfprintf (stderr, s, p);
-
- va_end (p);
-
- fprintf (stderr, "\n");
-
- einfo ("%X");
+ bfd_hash_table_free (&lang_definedness_table);
}
-#else /* ! defined (ANSI_PROTOTYPES) */
-
-static void
-record_bfd_errors (va_alist)
- va_dcl
-{
- va_list p;
- const char *s;
-
- einfo ("%P: ");
-
- va_start (p);
-
- s = va_arg (p, const char *);
- vfprintf (stderr, s, p);
-
- va_end (p);
-
- fprintf (stderr, "\n");
-
- einfo ("%X");
-}
-
-#endif /* ! defined (ANSI_PROTOTYPES) */
/* This is a small function used when we want to ignore errors from
BFD. */
static void
-#ifdef ANSI_PROTOTYPES
ignore_bfd_errors (const char *s ATTRIBUTE_UNUSED, ...)
-#else
-ignore_bfd_errors (s)
- const char *s ATTRIBUTE_UNUSED;
-#endif
{
/* Don't do anything. */
}
other checking that is needed. */
static void
-lang_check ()
+lang_check (void)
{
lang_statement_union_type *file;
bfd *input_bfd;
const bfd_arch_info_type *compatible;
- for (file = file_chain.head;
- file != (lang_statement_union_type *) NULL;
- file = file->input_statement.next)
+ for (file = file_chain.head; file != NULL; file = file->input_statement.next)
{
input_bfd = file->input_statement.the_bfd;
- compatible = bfd_arch_get_compatible (input_bfd,
- output_bfd);
+ compatible = bfd_arch_get_compatible (input_bfd, output_bfd,
+ command_line.accept_unknown_input_arch);
+
+ /* In general it is not possible to perform a relocatable
+ link between differing object formats when the input
+ file has relocations, because the relocations in the
+ input format may not have equivalent representations in
+ the output format (and besides BFD does not translate
+ relocs for other link purposes than a final link). */
+ if ((link_info.relocatable || link_info.emitrelocations)
+ && (compatible == NULL
+ || bfd_get_flavour (input_bfd) != bfd_get_flavour (output_bfd))
+ && (bfd_get_file_flags (input_bfd) & HAS_RELOC) != 0)
+ {
+ einfo (_("%P%F: Relocatable linking with relocations from format %s (%B) to format %s (%B) is not supported\n"),
+ bfd_get_target (input_bfd), input_bfd,
+ bfd_get_target (output_bfd), output_bfd);
+ /* einfo with %F exits. */
+ }
+
if (compatible == NULL)
{
if (command_line.warn_mismatch)
else if (bfd_count_sections (input_bfd))
{
/* If the input bfd has no contents, it shouldn't set the
- private data of the output bfd. */
+ private data of the output bfd. */
bfd_error_handler_type pfn = NULL;
if (! bfd_merge_private_bfd_data (input_bfd, output_bfd))
{
if (command_line.warn_mismatch)
- einfo (_("%E%X: failed to merge target specific data of file %B\n"),
+ einfo (_("%P%X: failed to merge target specific data of file %B\n"),
input_bfd);
}
if (! command_line.warn_mismatch)
to roughly sort the entries by size. */
static void
-lang_common ()
+lang_common (void)
{
- if (link_info.relocateable
+ if (command_line.inhibit_common_definition)
+ return;
+ if (link_info.relocatable
&& ! command_line.force_common_definition)
return;
if (! config.sort_common)
- bfd_link_hash_traverse (link_info.hash, lang_one_common, (PTR) NULL);
+ bfd_link_hash_traverse (link_info.hash, lang_one_common, NULL);
else
{
int power;
for (power = 4; power >= 0; power--)
- bfd_link_hash_traverse (link_info.hash, lang_one_common,
- (PTR) &power);
+ bfd_link_hash_traverse (link_info.hash, lang_one_common, &power);
}
}
/* Place one common symbol in the correct section. */
-static boolean
-lang_one_common (h, info)
- struct bfd_link_hash_entry *h;
- PTR info;
+static bfd_boolean
+lang_one_common (struct bfd_link_hash_entry *h, void *info)
{
unsigned int power_of_two;
bfd_vma size;
asection *section;
- unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture,
- ldfile_output_machine);
if (h->type != bfd_link_hash_common)
- return true;
+ return TRUE;
size = h->u.c.size;
power_of_two = h->u.c.p->alignment_power;
if (config.sort_common
&& power_of_two < (unsigned int) *(int *) info)
- return true;
+ return TRUE;
section = h->u.c.p->section;
- /* Increase the size of the section. */
- section->_cooked_size = ALIGN_N ((section->_cooked_size + opb - 1) / opb,
- (bfd_size_type) (1 << power_of_two)) * opb;
+ /* Increase the size of the section to align the common sym. */
+ section->_cooked_size += ((bfd_vma) 1 << (power_of_two + opb_shift)) - 1;
+ section->_cooked_size &= (- (bfd_vma) 1 << (power_of_two + opb_shift));
/* Adjust the alignment if necessary. */
if (power_of_two > section->alignment_power)
if (config.map_file != NULL)
{
- static boolean header_printed;
+ static bfd_boolean header_printed;
int len;
char *name;
char buf[50];
{
minfo (_("\nAllocating common symbols\n"));
minfo (_("Common symbol size file\n\n"));
- header_printed = true;
+ header_printed = TRUE;
}
name = demangle (h->root.string);
minfo ("%B\n", section->owner);
}
- return true;
+ return TRUE;
}
/* Run through the input files and ensure that every input section has
an input request and place it into the statement tree. */
static void
-lang_place_orphans ()
+lang_place_orphans (void)
{
LANG_FOR_EACH_INPUT_STATEMENT (file)
{
asection *s;
- for (s = file->the_bfd->sections;
- s != (asection *) NULL;
- s = s->next)
+ for (s = file->the_bfd->sections; s != NULL; s = s->next)
{
- if (s->output_section == (asection *) NULL)
+ if (s->output_section == NULL)
{
- /* This section of the file is not attatched, root
+ /* This section of the file is not attached, root
around for a sensible place for it to go. */
if (file->just_syms_flag)
{
- /* We are only retrieving symbol values from this
- file. We want the symbols to act as though the
- values in the file are absolute. */
- s->output_section = bfd_abs_section_ptr;
- s->output_offset = s->vma;
+ abort ();
}
else if (strcmp (s->name, "COMMON") == 0)
{
/* This is a lonely common section which must have
come from an archive. We attach to the section
with the wildcard. */
- if (! link_info.relocateable
+ if (! link_info.relocatable
|| command_line.force_common_definition)
{
if (default_common_section == NULL)
lang_output_section_statement_lookup (".bss");
}
- wild_doit (&default_common_section->children, s,
- default_common_section, file);
+ lang_add_section (&default_common_section->children, s,
+ default_common_section, file);
}
}
else if (ldemul_place_orphan (file, s))
;
else
{
- lang_output_section_statement_type *os =
- lang_output_section_statement_lookup (s->name);
+ lang_output_section_statement_type *os;
- wild_doit (&os->children, s, os, file);
+ os = lang_output_section_statement_lookup (s->name);
+ lang_add_section (&os->children, s, os, file);
}
}
}
}
void
-lang_set_flags (ptr, flags, invert)
- lang_memory_region_type *ptr;
- const char *flags;
- int invert;
+lang_set_flags (lang_memory_region_type *ptr, const char *flags, int invert)
{
flagword *ptr_flags;
on an archive, but not on the elements. */
void
-lang_for_each_input_file (func)
- void (*func) PARAMS ((lang_input_statement_type *));
+lang_for_each_input_file (void (*func) (lang_input_statement_type *))
{
lang_input_statement_type *f;
not be called on the archive file itself. */
void
-lang_for_each_file (func)
- void (*func) PARAMS ((lang_input_statement_type *));
+lang_for_each_file (void (*func) (lang_input_statement_type *))
{
LANG_FOR_EACH_INPUT_STATEMENT (f)
{
}
}
-#if 0
-
-/* Not used. */
-
-void
-lang_for_each_input_section (func)
- void (*func) PARAMS ((bfd *ab, asection *as));
-{
- LANG_FOR_EACH_INPUT_STATEMENT (f)
- {
- asection *s;
-
- for (s = f->the_bfd->sections;
- s != (asection *) NULL;
- s = s->next)
- {
- func (f->the_bfd, s);
- }
- }
-}
-
-#endif
-
void
-ldlang_add_file (entry)
- lang_input_statement_type *entry;
+ldlang_add_file (lang_input_statement_type *entry)
{
bfd **pp;
/* The BFD linker needs to have a list of all input BFDs involved in
a link. */
- ASSERT (entry->the_bfd->link_next == (bfd *) NULL);
+ ASSERT (entry->the_bfd->link_next == NULL);
ASSERT (entry->the_bfd != output_bfd);
- for (pp = &link_info.input_bfds;
- *pp != (bfd *) NULL;
- pp = &(*pp)->link_next)
+ for (pp = &link_info.input_bfds; *pp != NULL; pp = &(*pp)->link_next)
;
*pp = entry->the_bfd;
- entry->the_bfd->usrdata = (PTR) entry;
+ entry->the_bfd->usrdata = entry;
bfd_set_gp_size (entry->the_bfd, g_switch_value);
/* Look through the sections and check for any which should not be
each backend which might set the SEC_LINK_ONCE flag. If we do
this, we should probably handle SEC_EXCLUDE in the same way. */
- bfd_map_over_sections (entry->the_bfd, section_already_linked, (PTR) entry);
+ bfd_map_over_sections (entry->the_bfd, section_already_linked, entry);
}
void
-lang_add_output (name, from_script)
- const char *name;
- int from_script;
+lang_add_output (const char *name, int from_script)
{
/* Make -o on command line override OUTPUT in script. */
- if (had_output_filename == false || !from_script)
+ if (!had_output_filename || !from_script)
{
output_filename = name;
- had_output_filename = true;
+ had_output_filename = TRUE;
}
}
static lang_output_section_statement_type *current_section;
static int
-topower (x)
- int x;
+topower (int x)
{
unsigned int i = 1;
int l;
}
lang_output_section_statement_type *
-lang_enter_output_section_statement (output_section_statement_name,
- address_exp, sectype, block_value,
- align, subalign, ebase)
- const char *output_section_statement_name;
- etree_type *address_exp;
- enum section_type sectype;
- bfd_vma block_value;
- etree_type *align;
- etree_type *subalign;
- etree_type *ebase;
+lang_enter_output_section_statement (const char *output_section_statement_name,
+ etree_type *address_exp,
+ enum section_type sectype,
+ etree_type *align,
+ etree_type *subalign,
+ etree_type *ebase)
{
lang_output_section_statement_type *os;
#endif
/* Make next things chain into subchain of this. */
- if (os->addr_tree == (etree_type *) NULL)
+ if (os->addr_tree == NULL)
{
os->addr_tree = address_exp;
}
os->flags = SEC_NO_FLAGS;
else
os->flags = SEC_NEVER_LOAD;
- os->block_value = block_value ? block_value : 1;
+ os->block_value = 1;
stat_ptr = &os->children;
os->subsection_alignment =
}
void
-lang_final ()
+lang_final (void)
{
lang_output_statement_type *new =
new_stat (lang_output_statement, stat_ptr);
/* Reset the current counters in the regions. */
-static void
-reset_memory_regions ()
+void
+lang_reset_memory_regions (void)
{
lang_memory_region_type *p = lang_memory_region_list;
+ asection *o;
- for (p = lang_memory_region_list;
- p != (lang_memory_region_type *) NULL;
- p = p->next)
+ for (p = lang_memory_region_list; p != NULL; p = p->next)
{
p->old_length = (bfd_size_type) (p->current - p->origin);
p->current = p->origin;
}
+
+ for (o = output_bfd->sections; o != NULL; o = o->next)
+ o->_raw_size = 0;
}
-/* Expand a wild statement for a particular FILE, marking its sections KEEP
- as needed. SECTION may be NULL, in which case it is a wild card. */
+/* If the wild pattern was marked KEEP, the member sections
+ should be as well. */
static void
-gc_section_callback (ptr, section, file, data)
- lang_wild_statement_type *ptr;
- asection *section;
- lang_input_statement_type *file ATTRIBUTE_UNUSED;
- PTR data ATTRIBUTE_UNUSED;
+gc_section_callback (lang_wild_statement_type *ptr,
+ struct wildcard_list *sec ATTRIBUTE_UNUSED,
+ asection *section,
+ lang_input_statement_type *file ATTRIBUTE_UNUSED,
+ void *data ATTRIBUTE_UNUSED)
{
- /* If the wild pattern was marked KEEP, the member sections
- should be as well. */
if (ptr->keep_sections)
section->flags |= SEC_KEEP;
}
-/* Handle a wild statement, marking it against GC. SECTION or FILE or both
- may be NULL, indicating that it is a wildcard. */
+/* Handle a wild statement, marking it against GC. */
static void
-lang_gc_wild (s, section, file)
- lang_wild_statement_type *s;
- const char *section;
- const char *file;
+lang_gc_wild (lang_wild_statement_type *s)
{
- walk_wild (s, section, file, gc_section_callback, NULL);
+ walk_wild (s, gc_section_callback, NULL);
}
/* Iterate over sections marking them against GC. */
static void
-lang_gc_sections_1 (s)
- lang_statement_union_type *s;
+lang_gc_sections_1 (lang_statement_union_type *s)
{
- for (; s != (lang_statement_union_type *) NULL; s = s->next)
+ for (; s != NULL; s = s->header.next)
{
switch (s->header.type)
{
case lang_wild_statement_enum:
- lang_gc_wild (&s->wild_statement,
- s->wild_statement.section_name,
- s->wild_statement.filename);
+ lang_gc_wild (&s->wild_statement);
break;
case lang_constructors_statement_enum:
lang_gc_sections_1 (constructor_list.head);
}
static void
-lang_gc_sections ()
+lang_gc_sections (void)
{
struct bfd_link_hash_entry *h;
- ldlang_undef_chain_list_type *ulist, fake_list_start;
+ ldlang_undef_chain_list_type *ulist;
/* Keep all sections so marked in the link script. */
lang_gc_sections_1 (statement_list.head);
- /* Keep all sections containing symbols undefined on the command-line.
- Handle the entry symbol at the same time. */
-
- if (entry_symbol != NULL)
- {
- fake_list_start.next = ldlang_undef_chain_list_head;
- fake_list_start.name = (char *) entry_symbol;
- ulist = &fake_list_start;
- }
- else
- ulist = ldlang_undef_chain_list_head;
+ /* Keep all sections containing symbols undefined on the command-line,
+ and the section containing the entry symbol. */
- for (; ulist; ulist = ulist->next)
+ for (ulist = link_info.gc_sym_list; ulist; ulist = ulist->next)
{
h = bfd_link_hash_lookup (link_info.hash, ulist->name,
- false, false, false);
+ FALSE, FALSE, FALSE);
- if (h != (struct bfd_link_hash_entry *) NULL
+ if (h != NULL
&& (h->type == bfd_link_hash_defined
|| h->type == bfd_link_hash_defweak)
&& ! bfd_is_abs_section (h->u.def.section))
}
void
-lang_process ()
+lang_process (void)
{
lang_reasonable_defaults ();
current_target = default_target;
/* Open the output file. */
lang_for_each_statement (ldlang_open_output);
+ init_opb ();
ldemul_create_output_section_statements ();
/* Create a bfd for each input file. */
current_target = default_target;
- open_input_bfds (statement_list.head, false);
+ open_input_bfds (statement_list.head, FALSE);
+
+ link_info.gc_sym_list = &entry_symbol;
+ if (entry_symbol.name == NULL)
+ link_info.gc_sym_list = ldlang_undef_chain_list_head;
ldemul_after_open ();
if (command_line.gc_sections)
lang_gc_sections ();
+ /* If there were any SEC_MERGE sections, finish their merging, so that
+ section sizes can be computed. This has to be done after GC of sections,
+ so that GCed sections are not merged, but before assigning output
+ sections, since removing whole input sections is hard then. */
+ bfd_merge_sections (output_bfd, &link_info);
+
/* Size up the common data. */
lang_common ();
/* Run through the contours of the script and attach input sections
to the correct output sections. */
- map_input_to_output_sections (statement_list.head, (char *) NULL,
- (lang_output_section_statement_type *) NULL);
+ map_input_to_output_sections (statement_list.head, NULL, NULL);
/* Find any sections not attached explicitly and handle them. */
lang_place_orphans ();
+ if (! link_info.relocatable)
+ {
+ /* Look for a text section and set the readonly attribute in it. */
+ asection *found = bfd_get_section_by_name (output_bfd, ".text");
+
+ if (found != NULL)
+ {
+ if (config.text_read_only)
+ found->flags |= SEC_READONLY;
+ else
+ found->flags &= ~SEC_READONLY;
+ }
+ }
+
+ /* Do anything special before sizing sections. This is where ELF
+ and other back-ends size dynamic sections. */
ldemul_before_allocation ();
+ if (!link_info.relocatable)
+ strip_excluded_output_sections ();
+
/* We must record the program headers before we try to fix the
section positions, since they will affect SIZEOF_HEADERS. */
lang_record_phdrs ();
+ /* Size up the sections. */
+ lang_size_sections (statement_list.head, abs_output_section,
+ &statement_list.head, 0, 0, NULL,
+ command_line.relax ? FALSE : TRUE);
+
/* Now run around and relax if we can. */
if (command_line.relax)
{
- /* First time round is a trial run to get the 'worst case'
- addresses of the objects if there was no relaxing. */
- lang_size_sections (statement_list.head,
- abs_output_section,
- &(statement_list.head), 0, (bfd_vma) 0, false);
-
/* Keep relaxing until bfd_relax_section gives up. */
+ bfd_boolean relax_again;
+
do
{
- reset_memory_regions ();
-
- relax_again = false;
+ relax_again = FALSE;
/* Note: pe-dll.c does something like this also. If you find
you need to change this code, you probably need to change
/* Do all the assignments with our current guesses as to
section sizes. */
- lang_do_assignments (statement_list.head,
- abs_output_section,
- (fill_type) 0, (bfd_vma) 0);
+ lang_do_assignments (statement_list.head, abs_output_section,
+ NULL, 0);
+
+ /* We must do this after lang_do_assignments, because it uses
+ _raw_size. */
+ lang_reset_memory_regions ();
/* Perform another relax pass - this time we know where the
- globals are, so can make better guess. */
- lang_size_sections (statement_list.head,
- abs_output_section,
- &(statement_list.head), 0, (bfd_vma) 0, true);
+ globals are, so can make a better guess. */
+ lang_size_sections (statement_list.head, abs_output_section,
+ &statement_list.head, 0, 0, &relax_again, FALSE);
+
+ /* If the normal relax is done and the relax finalize pass
+ is not performed yet, we perform another relax pass. */
+ if (!relax_again && link_info.need_relax_finalize)
+ {
+ link_info.need_relax_finalize = FALSE;
+ relax_again = TRUE;
+ }
}
while (relax_again);
- }
- else
- {
- /* Size up the sections. */
- lang_size_sections (statement_list.head,
- abs_output_section,
- &(statement_list.head), 0, (bfd_vma) 0, false);
+
+ /* Final extra sizing to report errors. */
+ lang_do_assignments (statement_list.head, abs_output_section, NULL, 0);
+ lang_reset_memory_regions ();
+ lang_size_sections (statement_list.head, abs_output_section,
+ &statement_list.head, 0, 0, NULL, TRUE);
}
/* See if anything special should be done now we know how big
/* Do all the assignments, now that we know the final resting places
of all the symbols. */
- lang_do_assignments (statement_list.head,
- abs_output_section,
- (fill_type) 0, (bfd_vma) 0);
+ lang_do_assignments (statement_list.head, abs_output_section, NULL, 0);
/* Make sure that the section addresses make sense. */
- if (! link_info.relocateable
+ if (! link_info.relocatable
&& command_line.check_section_addresses)
lang_check_section_addresses ();
/* EXPORTED TO YACC */
void
-lang_add_wild (section_name, sections_sorted, filename, filenames_sorted,
- keep_sections, exclude_filename_list)
- const char *const section_name;
- boolean sections_sorted;
- const char *const filename;
- boolean filenames_sorted;
- boolean keep_sections;
- struct name_list *exclude_filename_list;
-{
- lang_wild_statement_type *new = new_stat (lang_wild_statement,
- stat_ptr);
+lang_add_wild (struct wildcard_spec *filespec,
+ struct wildcard_list *section_list,
+ bfd_boolean keep_sections)
+{
+ struct wildcard_list *curr, *next;
+ lang_wild_statement_type *new;
+
+ /* Reverse the list as the parser puts it back to front. */
+ for (curr = section_list, section_list = NULL;
+ curr != NULL;
+ section_list = curr, curr = next)
+ {
+ if (curr->spec.name != NULL && strcmp (curr->spec.name, "COMMON") == 0)
+ placed_commons = TRUE;
- if (section_name != (char *) NULL && strcmp (section_name, "COMMON") == 0)
+ next = curr->next;
+ curr->next = section_list;
+ }
+
+ if (filespec != NULL && filespec->name != NULL)
{
- placed_commons = true;
+ if (strcmp (filespec->name, "*") == 0)
+ filespec->name = NULL;
+ else if (! wildcardp (filespec->name))
+ lang_has_input_file = TRUE;
}
- if (filename != NULL && ! wildcardp (filename))
+
+ new = new_stat (lang_wild_statement, stat_ptr);
+ new->filename = NULL;
+ new->filenames_sorted = FALSE;
+ if (filespec != NULL)
{
- lang_has_input_file = true;
+ new->filename = filespec->name;
+ new->filenames_sorted = filespec->sorted;
}
- new->section_name = section_name;
- new->sections_sorted = sections_sorted;
- new->filename = filename;
- new->filenames_sorted = filenames_sorted;
+ new->section_list = section_list;
new->keep_sections = keep_sections;
- new->exclude_filename_list = exclude_filename_list;
lang_list_init (&new->children);
}
void
-lang_section_start (name, address)
- const char *name;
- etree_type *address;
+lang_section_start (const char *name, etree_type *address)
{
- lang_address_statement_type *ad = new_stat (lang_address_statement, stat_ptr);
+ lang_address_statement_type *ad;
+ ad = new_stat (lang_address_statement, stat_ptr);
ad->section_name = name;
ad->address = address;
}
precedence. */
void
-lang_add_entry (name, cmdline)
- const char *name;
- boolean cmdline;
+lang_add_entry (const char *name, bfd_boolean cmdline)
{
- if (entry_symbol == NULL
+ if (entry_symbol.name == NULL
|| cmdline
|| ! entry_from_cmdline)
{
- entry_symbol = name;
+ entry_symbol.name = name;
entry_from_cmdline = cmdline;
}
}
void
-lang_add_target (name)
- const char *name;
+lang_add_target (const char *name)
{
lang_target_statement_type *new = new_stat (lang_target_statement,
stat_ptr);
}
void
-lang_add_map (name)
- const char *name;
+lang_add_map (const char *name)
{
while (*name)
{
switch (*name)
{
case 'F':
- map_option_f = true;
+ map_option_f = TRUE;
break;
}
name++;
}
void
-lang_add_fill (exp)
- int exp;
+lang_add_fill (fill_type *fill)
{
lang_fill_statement_type *new = new_stat (lang_fill_statement,
stat_ptr);
- new->fill = exp;
+ new->fill = fill;
}
void
-lang_add_data (type, exp)
- int type;
- union etree_union *exp;
+lang_add_data (int type, union etree_union *exp)
{
lang_data_statement_type *new = new_stat (lang_data_statement,
NAME must be NULL. ADDEND is an expression for the addend. */
void
-lang_add_reloc (reloc, howto, section, name, addend)
- bfd_reloc_code_real_type reloc;
- reloc_howto_type *howto;
- asection *section;
- const char *name;
- union etree_union *addend;
+lang_add_reloc (bfd_reloc_code_real_type reloc,
+ reloc_howto_type *howto,
+ asection *section,
+ const char *name,
+ union etree_union *addend)
{
lang_reloc_statement_type *p = new_stat (lang_reloc_statement, stat_ptr);
}
lang_assignment_statement_type *
-lang_add_assignment (exp)
- etree_type *exp;
+lang_add_assignment (etree_type *exp)
{
lang_assignment_statement_type *new = new_stat (lang_assignment_statement,
stat_ptr);
}
void
-lang_add_attribute (attribute)
- enum statement_enum attribute;
+lang_add_attribute (enum statement_enum attribute)
{
new_statement (attribute, sizeof (lang_statement_union_type), stat_ptr);
}
void
-lang_startup (name)
- const char *name;
+lang_startup (const char *name)
{
- if (startup_file != (char *) NULL)
+ if (startup_file != NULL)
{
einfo (_("%P%Fmultiple STARTUP files\n"));
}
first_file->filename = name;
first_file->local_sym_name = name;
- first_file->real = true;
+ first_file->real = TRUE;
startup_file = name;
}
void
-lang_float (maybe)
- boolean maybe;
+lang_float (bfd_boolean maybe)
{
lang_float_flag = maybe;
}
+
+/* Work out the load- and run-time regions from a script statement, and
+ store them in *LMA_REGION and *REGION respectively.
+
+ MEMSPEC is the name of the run-time region, or the value of
+ DEFAULT_MEMORY_REGION if the statement didn't specify one.
+ LMA_MEMSPEC is the name of the load-time region, or null if the
+ statement didn't specify one.HAVE_LMA_P is TRUE if the statement
+ had an explicit load address.
+
+ It is an error to specify both a load region and a load address. */
+
+static void
+lang_get_regions (lang_memory_region_type **region,
+ lang_memory_region_type **lma_region,
+ const char *memspec,
+ const char *lma_memspec,
+ bfd_boolean have_lma,
+ bfd_boolean have_vma)
+{
+ *lma_region = lang_memory_region_lookup (lma_memspec, FALSE);
+
+ /* If no runtime region or VMA has been specified, but the load region has
+ been specified, then use the load region for the runtime region as well. */
+ if (lma_memspec != NULL
+ && ! have_vma
+ && strcmp (memspec, DEFAULT_MEMORY_REGION) == 0)
+ *region = *lma_region;
+ else
+ *region = lang_memory_region_lookup (memspec, FALSE);
+
+ if (have_lma && lma_memspec != 0)
+ einfo (_("%X%P:%S: section has both a load address and a load region\n"));
+}
+
void
-lang_leave_output_section_statement (fill, memspec, phdrs, lma_memspec)
- bfd_vma fill;
- const char *memspec;
- struct lang_output_section_phdr_list *phdrs;
- const char *lma_memspec;
-{
+lang_leave_output_section_statement (fill_type *fill, const char *memspec,
+ lang_output_section_phdr_list *phdrs,
+ const char *lma_memspec)
+{
+ lang_get_regions (¤t_section->region,
+ ¤t_section->lma_region,
+ memspec, lma_memspec,
+ current_section->load_base != NULL,
+ current_section->addr_tree != NULL);
current_section->fill = fill;
- current_section->region = lang_memory_region_lookup (memspec);
- if (strcmp (lma_memspec, "*default*") != 0)
- {
- current_section->lma_region = lang_memory_region_lookup (lma_memspec);
- /* If no runtime region has been given, but the load region has
- been, use the load region. */
- if (strcmp (memspec, "*default*") == 0)
- current_section->region = lang_memory_region_lookup (lma_memspec);
- }
current_section->phdrs = phdrs;
stat_ptr = &statement_list;
}
If the symbol already exists, then do nothing. */
void
-lang_abs_symbol_at_beginning_of (secname, name)
- const char *secname;
- const char *name;
+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 == (struct bfd_link_hash_entry *) NULL)
+ 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_defined;
sec = bfd_get_section_by_name (output_bfd, secname);
- if (sec == (asection *) NULL)
+ if (sec == NULL)
h->u.def.value = 0;
else
h->u.def.value = bfd_get_section_vma (output_bfd, sec);
If the symbol already exists, then do nothing. */
void
-lang_abs_symbol_at_end_of (secname, name)
- const char *secname;
- const char *name;
+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 == (struct bfd_link_hash_entry *) NULL)
+ 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_defined;
sec = bfd_get_section_by_name (output_bfd, secname);
- if (sec == (asection *) NULL)
+ if (sec == NULL)
h->u.def.value = 0;
else
h->u.def.value = (bfd_get_section_vma (output_bfd, sec)
- + bfd_section_size (output_bfd, sec) /
- bfd_octets_per_byte (output_bfd));
+ + TO_ADDR (bfd_section_size (output_bfd, sec)));
h->u.def.section = bfd_abs_section_ptr;
}
}
void
-lang_statement_append (list, element, field)
- lang_statement_list_type *list;
- lang_statement_union_type *element;
- lang_statement_union_type **field;
+lang_statement_append (lang_statement_list_type *list,
+ lang_statement_union_type *element,
+ lang_statement_union_type **field)
{
*(list->tail) = element;
list->tail = field;
/* Set the output format type. -oformat overrides scripts. */
void
-lang_add_output_format (format, big, little, from_script)
- const char *format;
- const char *big;
- const char *little;
- int from_script;
+lang_add_output_format (const char *format,
+ const char *big,
+ const char *little,
+ int from_script)
{
if (output_target == NULL || !from_script)
{
stat_ptr to build new statements within the group. */
void
-lang_enter_group ()
+lang_enter_group (void)
{
lang_group_statement_type *g;
but currently they can't. */
void
-lang_leave_group ()
+lang_leave_group (void)
{
stat_ptr = &statement_list;
}
command in a linker script. */
void
-lang_new_phdr (name, type, filehdr, phdrs, at, flags)
- const char *name;
- etree_type *type;
- boolean filehdr;
- boolean phdrs;
- etree_type *at;
- etree_type *flags;
+lang_new_phdr (const char *name,
+ etree_type *type,
+ bfd_boolean filehdr,
+ bfd_boolean phdrs,
+ etree_type *at,
+ etree_type *flags)
{
struct lang_phdr *n, **pp;
- n = (struct lang_phdr *) stat_alloc (sizeof (struct lang_phdr));
+ n = stat_alloc (sizeof (struct lang_phdr));
n->next = NULL;
n->name = name;
n->type = exp_get_value_int (type, 0, "program header type",
should not be calling an ELF specific function here. */
static void
-lang_record_phdrs ()
+lang_record_phdrs (void)
{
unsigned int alc;
asection **secs;
- struct lang_output_section_phdr_list *last;
+ lang_output_section_phdr_list *last;
struct lang_phdr *l;
lang_statement_union_type *u;
alc = 10;
- secs = (asection **) xmalloc (alc * sizeof (asection *));
+ secs = xmalloc (alc * sizeof (asection *));
last = NULL;
for (l = lang_phdr_list; l != NULL; l = l->next)
{
u = u->output_section_statement.next)
{
lang_output_section_statement_type *os;
- struct lang_output_section_phdr_list *pl;
+ lang_output_section_phdr_list *pl;
os = &u->output_section_statement;
if (c >= alc)
{
alc *= 2;
- secs = ((asection **)
- xrealloc (secs, alc * sizeof (asection *)));
+ secs = xrealloc (secs, alc * sizeof (asection *));
}
secs[c] = os->bfd_section;
++c;
- pl->used = true;
+ pl->used = TRUE;
}
}
}
lang_final_phase_enum);
if (! bfd_record_phdr (output_bfd, l->type,
- l->flags == NULL ? false : true,
- flags,
- l->at == NULL ? false : true,
+ l->flags != NULL, flags, l->at != NULL,
at, l->filehdr, l->phdrs, c, secs))
einfo (_("%F%P: bfd_record_phdr failed: %E\n"));
}
u != NULL;
u = u->output_section_statement.next)
{
- struct lang_output_section_phdr_list *pl;
+ lang_output_section_phdr_list *pl;
if (u->output_section_statement.bfd_section == NULL)
continue;
/* Record a list of sections which may not be cross referenced. */
void
-lang_add_nocrossref (l)
- struct lang_nocrossref *l;
+lang_add_nocrossref (lang_nocrossref_type *l)
{
struct lang_nocrossrefs *n;
- n = (struct lang_nocrossrefs *) xmalloc (sizeof *n);
+ n = xmalloc (sizeof *n);
n->next = nocrossref_list;
n->list = l;
nocrossref_list = n;
/* Set notice_all so that we get informed about all symbols. */
- link_info.notice_all = true;
+ link_info.notice_all = TRUE;
}
\f
/* Overlay handling. We handle overlays with some static variables. */
/* The overlay virtual address. */
static etree_type *overlay_vma;
-
-/* The overlay load address. */
-static etree_type *overlay_lma;
-
-/* Whether nocrossrefs is set for this overlay. */
-static int overlay_nocrossrefs;
+/* And subsection alignment. */
+static etree_type *overlay_subalign;
/* An expression for the maximum section size seen so far. */
static etree_type *overlay_max;
/* Start handling an overlay. */
void
-lang_enter_overlay (vma_expr, lma_expr, nocrossrefs)
- etree_type *vma_expr;
- etree_type *lma_expr;
- int nocrossrefs;
+lang_enter_overlay (etree_type *vma_expr, etree_type *subalign)
{
/* The grammar should prevent nested overlays from occurring. */
ASSERT (overlay_vma == NULL
- && overlay_lma == NULL
- && overlay_list == NULL
+ && overlay_subalign == NULL
&& overlay_max == NULL);
overlay_vma = vma_expr;
- overlay_lma = lma_expr;
- overlay_nocrossrefs = nocrossrefs;
+ overlay_subalign = subalign;
}
/* Start a section in an overlay. We handle this by calling
- lang_enter_output_section_statement with the correct VMA and LMA. */
+ lang_enter_output_section_statement with the correct VMA.
+ lang_leave_overlay sets up the LMA and memory regions. */
void
-lang_enter_overlay_section (name)
- const char *name;
+lang_enter_overlay_section (const char *name)
{
struct overlay_list *n;
etree_type *size;
lang_enter_output_section_statement (name, overlay_vma, normal_section,
- 0, 0, 0, overlay_lma);
+ 0, overlay_subalign, 0);
- /* If this is the first section, then base the VMA and LMA of future
+ /* If this is the first section, then base the VMA of future
sections on this one. This will work correctly even if `.' is
used in the addresses. */
if (overlay_list == NULL)
- {
- overlay_vma = exp_nameop (ADDR, name);
- overlay_lma = exp_nameop (LOADADDR, name);
- }
+ overlay_vma = exp_nameop (ADDR, name);
/* Remember the section. */
- n = (struct overlay_list *) xmalloc (sizeof *n);
+ n = xmalloc (sizeof *n);
n->os = current_section;
n->next = overlay_list;
overlay_list = n;
size = exp_nameop (SIZEOF, name);
- /* Adjust the LMA for the next section. */
- overlay_lma = exp_binop ('+', overlay_lma, size);
-
/* Arrange to work out the maximum section end address. */
if (overlay_max == NULL)
overlay_max = size;
here. */
void
-lang_leave_overlay_section (fill, phdrs)
- bfd_vma fill;
- struct lang_output_section_phdr_list *phdrs;
+lang_leave_overlay_section (fill_type *fill,
+ lang_output_section_phdr_list *phdrs)
{
const char *name;
char *clean, *s2;
name = current_section->name;
- lang_leave_output_section_statement (fill, "*default*",
- phdrs, "*default*");
+ /* For now, assume that DEFAULT_MEMORY_REGION is the run-time memory
+ region and that no load-time region has been specified. It doesn't
+ really matter what we say here, since lang_leave_overlay will
+ override it. */
+ lang_leave_output_section_statement (fill, DEFAULT_MEMORY_REGION, phdrs, 0);
/* Define the magic symbols. */
clean = xmalloc (strlen (name) + 1);
s2 = clean;
for (s1 = name; *s1 != '\0'; s1++)
- if (isalnum ((unsigned char) *s1) || *s1 == '_')
+ if (ISALNUM (*s1) || *s1 == '_')
*s2++ = *s1;
*s2 = '\0';
looks through all the sections in the overlay and sets them. */
void
-lang_leave_overlay (fill, memspec, phdrs, lma_memspec)
- bfd_vma fill;
- const char *memspec;
- struct lang_output_section_phdr_list *phdrs;
- const char *lma_memspec;
+lang_leave_overlay (etree_type *lma_expr,
+ int nocrossrefs,
+ fill_type *fill,
+ const char *memspec,
+ lang_output_section_phdr_list *phdrs,
+ const char *lma_memspec)
{
lang_memory_region_type *region;
lang_memory_region_type *lma_region;
struct overlay_list *l;
- struct lang_nocrossref *nocrossref;
-
- if (memspec == NULL)
- region = NULL;
- else
- region = lang_memory_region_lookup (memspec);
+ lang_nocrossref_type *nocrossref;
- if (lma_memspec == NULL)
- lma_region = NULL;
- else
- lma_region = lang_memory_region_lookup (lma_memspec);
+ lang_get_regions (®ion, &lma_region,
+ memspec, lma_memspec,
+ lma_expr != NULL, FALSE);
nocrossref = NULL;
+ /* 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_assop ('=', ".", exp_binop ('+', overlay_vma, overlay_max));
+
l = overlay_list;
while (l != NULL)
{
struct overlay_list *next;
- if (fill != 0 && l->os->fill == 0)
+ if (fill != NULL && l->os->fill == NULL)
l->os->fill = fill;
- if (region != NULL && l->os->region == NULL)
- l->os->region = region;
- /* We only set lma_region for the first overlay section, as
- subsequent overlay sections will have load_base set relative
- to the first section. Also, don't set lma_region if
- load_base is specified. FIXME: There should really be a test
- that `AT ( LDADDR )' doesn't conflict with `AT >LMA_REGION'
- rather than letting LDADDR simply override LMA_REGION. */
- if (lma_region != NULL && l->os->lma_region == NULL
- && l->next == NULL && l->os->load_base == NULL)
- l->os->lma_region = lma_region;
+
+ l->os->region = region;
+ l->os->lma_region = lma_region;
+
+ /* The first section has the load address specified in the
+ OVERLAY statement. The rest are worked out from that.
+ The base address is not needed (and should be null) if
+ an LMA region was specified. */
+ if (l->next == 0)
+ l->os->load_base = lma_expr;
+ else if (lma_region == 0)
+ l->os->load_base = exp_binop ('+',
+ exp_nameop (LOADADDR, l->next->os->name),
+ exp_nameop (SIZEOF, l->next->os->name));
+
if (phdrs != NULL && l->os->phdrs == NULL)
l->os->phdrs = phdrs;
- if (overlay_nocrossrefs)
+ if (nocrossrefs)
{
- struct lang_nocrossref *nc;
+ lang_nocrossref_type *nc;
- nc = (struct lang_nocrossref *) xmalloc (sizeof *nc);
+ nc = xmalloc (sizeof *nc);
nc->name = l->os->name;
nc->next = nocrossref;
nocrossref = nc;
if (nocrossref != NULL)
lang_add_nocrossref (nocrossref);
- /* Update . for the end of the overlay. */
- lang_add_assignment (exp_assop ('=', ".",
- exp_binop ('+', overlay_vma, overlay_max)));
-
overlay_vma = NULL;
- overlay_lma = NULL;
- overlay_nocrossrefs = 0;
overlay_list = NULL;
overlay_max = NULL;
}
struct bfd_elf_version_tree *lang_elf_version_info;
-static int
-lang_vers_match_lang_c (expr, sym)
- struct bfd_elf_version_expr *expr;
- const char *sym;
-{
- if (expr->pattern[0] == '*' && expr->pattern[1] == '\0')
- return 1;
- return fnmatch (expr->pattern, sym, 0) == 0;
-}
+/* If PREV is NULL, return first version pattern matching particular symbol.
+ If PREV is non-NULL, return first version pattern matching particular
+ symbol after PREV (previously returned by lang_vers_match). */
-static int
-lang_vers_match_lang_cplusplus (expr, sym)
- struct bfd_elf_version_expr *expr;
- const char *sym;
+static struct bfd_elf_version_expr *
+lang_vers_match (struct bfd_elf_version_expr_head *head,
+ struct bfd_elf_version_expr *prev,
+ const char *sym)
{
- char *alt_sym;
- int result;
+ const char *cxx_sym = sym;
+ const char *java_sym = sym;
+ struct bfd_elf_version_expr *expr = NULL;
- if (expr->pattern[0] == '*' && expr->pattern[1] == '\0')
- return 1;
+ if (head->mask & BFD_ELF_VERSION_CXX_TYPE)
+ {
+ cxx_sym = cplus_demangle (sym, DMGL_PARAMS | DMGL_ANSI);
+ if (!cxx_sym)
+ cxx_sym = sym;
+ }
+ if (head->mask & BFD_ELF_VERSION_JAVA_TYPE)
+ {
+ java_sym = cplus_demangle (sym, DMGL_JAVA);
+ if (!java_sym)
+ java_sym = sym;
+ }
- alt_sym = cplus_demangle (sym, /* DMGL_NO_TPARAMS */ 0);
- if (!alt_sym)
+ if (head->htab && (prev == NULL || prev->symbol))
{
- /* cplus_demangle (also) returns NULL when it is not a C++ symbol.
- Should we early out false in this case? */
- result = fnmatch (expr->pattern, sym, 0) == 0;
+ struct bfd_elf_version_expr e;
+
+ switch (prev ? prev->mask : 0)
+ {
+ case 0:
+ if (head->mask & BFD_ELF_VERSION_C_TYPE)
+ {
+ e.symbol = sym;
+ expr = htab_find (head->htab, &e);
+ while (expr && strcmp (expr->symbol, sym) == 0)
+ if (expr->mask == BFD_ELF_VERSION_C_TYPE)
+ goto out_ret;
+ else
+ expr = expr->next;
+ }
+ /* Fallthrough */
+ case BFD_ELF_VERSION_C_TYPE:
+ if (head->mask & BFD_ELF_VERSION_CXX_TYPE)
+ {
+ e.symbol = cxx_sym;
+ expr = htab_find (head->htab, &e);
+ while (expr && strcmp (expr->symbol, cxx_sym) == 0)
+ if (expr->mask == BFD_ELF_VERSION_CXX_TYPE)
+ goto out_ret;
+ else
+ expr = expr->next;
+ }
+ /* Fallthrough */
+ case BFD_ELF_VERSION_CXX_TYPE:
+ if (head->mask & BFD_ELF_VERSION_JAVA_TYPE)
+ {
+ e.symbol = java_sym;
+ expr = htab_find (head->htab, &e);
+ while (expr && strcmp (expr->symbol, java_sym) == 0)
+ if (expr->mask == BFD_ELF_VERSION_JAVA_TYPE)
+ goto out_ret;
+ else
+ expr = expr->next;
+ }
+ /* Fallthrough */
+ default:
+ break;
+ }
}
+
+ /* Finally, try the wildcards. */
+ if (prev == NULL || prev->symbol)
+ expr = head->remaining;
else
+ expr = prev->next;
+ while (expr)
{
- result = fnmatch (expr->pattern, alt_sym, 0) == 0;
- free (alt_sym);
+ const char *s;
+
+ if (expr->pattern[0] == '*' && expr->pattern[1] == '\0')
+ break;
+
+ if (expr->mask == BFD_ELF_VERSION_JAVA_TYPE)
+ s = java_sym;
+ else if (expr->mask == BFD_ELF_VERSION_CXX_TYPE)
+ s = cxx_sym;
+ else
+ s = sym;
+ if (fnmatch (expr->pattern, s, 0) == 0)
+ break;
+ expr = expr->next;
}
- return result;
+out_ret:
+ if (cxx_sym != sym)
+ free ((char *) cxx_sym);
+ if (java_sym != sym)
+ free ((char *) java_sym);
+ return expr;
}
-static int
-lang_vers_match_lang_java (expr, sym)
- struct bfd_elf_version_expr *expr;
- const char *sym;
+/* Return NULL if the PATTERN argument is a glob pattern, otherwise,
+ return a string pointing to the symbol name. */
+
+static const char *
+realsymbol (const char *pattern)
{
- char *alt_sym;
- int result;
+ const char *p;
+ bfd_boolean changed = FALSE, backslash = FALSE;
+ char *s, *symbol = xmalloc (strlen (pattern) + 1);
- if (expr->pattern[0] == '*' && expr->pattern[1] == '\0')
- return 1;
+ for (p = pattern, s = symbol; *p != '\0'; ++p)
+ {
+ /* It is a glob pattern only if there is no preceding
+ backslash. */
+ if (! backslash && (*p == '?' || *p == '*' || *p == '['))
+ {
+ free (symbol);
+ return NULL;
+ }
- alt_sym = cplus_demangle (sym, DMGL_JAVA);
- if (!alt_sym)
+ if (backslash)
+ {
+ /* Remove the preceding backslash. */
+ *(s - 1) = *p;
+ changed = TRUE;
+ }
+ else
+ *s++ = *p;
+
+ backslash = *p == '\\';
+ }
+
+ if (changed)
{
- /* cplus_demangle (also) returns NULL when it is not a Java symbol.
- Should we early out false in this case? */
- result = fnmatch (expr->pattern, sym, 0) == 0;
+ *s = '\0';
+ return symbol;
}
else
{
- result = fnmatch (expr->pattern, alt_sym, 0) == 0;
- free (alt_sym);
+ free (symbol);
+ return pattern;
}
-
- return result;
}
/* This is called for each variable name or match expression. */
struct bfd_elf_version_expr *
-lang_new_vers_regex (orig, new, lang)
- struct bfd_elf_version_expr *orig;
- const char *new;
- const char *lang;
+lang_new_vers_pattern (struct bfd_elf_version_expr *orig,
+ const char *new,
+ const char *lang)
{
struct bfd_elf_version_expr *ret;
- ret = (struct bfd_elf_version_expr *) xmalloc (sizeof *ret);
+ ret = xmalloc (sizeof *ret);
ret->next = orig;
ret->pattern = new;
+ ret->symver = 0;
+ ret->script = 0;
+ ret->symbol = realsymbol (new);
if (lang == NULL || strcasecmp (lang, "C") == 0)
- ret->match = lang_vers_match_lang_c;
+ ret->mask = BFD_ELF_VERSION_C_TYPE;
else if (strcasecmp (lang, "C++") == 0)
- ret->match = lang_vers_match_lang_cplusplus;
+ ret->mask = BFD_ELF_VERSION_CXX_TYPE;
else if (strcasecmp (lang, "Java") == 0)
- ret->match = lang_vers_match_lang_java;
+ ret->mask = BFD_ELF_VERSION_JAVA_TYPE;
else
{
einfo (_("%X%P: unknown language `%s' in version information\n"),
lang);
- ret->match = lang_vers_match_lang_c;
+ ret->mask = BFD_ELF_VERSION_C_TYPE;
}
- return ret;
+ return ldemul_new_vers_pattern (ret);
}
/* This is called for each set of variable names and match
expressions. */
struct bfd_elf_version_tree *
-lang_new_vers_node (globals, locals)
- struct bfd_elf_version_expr *globals;
- struct bfd_elf_version_expr *locals;
+lang_new_vers_node (struct bfd_elf_version_expr *globals,
+ struct bfd_elf_version_expr *locals)
{
struct bfd_elf_version_tree *ret;
- ret = (struct bfd_elf_version_tree *) xmalloc (sizeof *ret);
- ret->next = NULL;
- ret->name = NULL;
- ret->vernum = 0;
- ret->globals = globals;
- ret->locals = locals;
- ret->deps = NULL;
+ ret = xcalloc (1, sizeof *ret);
+ ret->globals.list = globals;
+ ret->locals.list = locals;
+ ret->match = lang_vers_match;
ret->name_indx = (unsigned int) -1;
- ret->used = 0;
return ret;
}
static int version_index;
+static hashval_t
+version_expr_head_hash (const void *p)
+{
+ const struct bfd_elf_version_expr *e = p;
+
+ return htab_hash_string (e->symbol);
+}
+
+static int
+version_expr_head_eq (const void *p1, const void *p2)
+{
+ const struct bfd_elf_version_expr *e1 = p1;
+ const struct bfd_elf_version_expr *e2 = p2;
+
+ return strcmp (e1->symbol, e2->symbol) == 0;
+}
+
+static void
+lang_finalize_version_expr_head (struct bfd_elf_version_expr_head *head)
+{
+ size_t count = 0;
+ struct bfd_elf_version_expr *e, *next;
+ struct bfd_elf_version_expr **list_loc, **remaining_loc;
+
+ for (e = head->list; e; e = e->next)
+ {
+ if (e->symbol)
+ count++;
+ head->mask |= e->mask;
+ }
+
+ if (count)
+ {
+ head->htab = htab_create (count * 2, version_expr_head_hash,
+ version_expr_head_eq, NULL);
+ list_loc = &head->list;
+ remaining_loc = &head->remaining;
+ for (e = head->list; e; e = next)
+ {
+ next = e->next;
+ if (!e->symbol)
+ {
+ *remaining_loc = e;
+ remaining_loc = &e->next;
+ }
+ else
+ {
+ void **loc = htab_find_slot (head->htab, e, INSERT);
+
+ if (*loc)
+ {
+ struct bfd_elf_version_expr *e1, *last;
+
+ e1 = *loc;
+ last = NULL;
+ do
+ {
+ if (e1->mask == e->mask)
+ {
+ last = NULL;
+ break;
+ }
+ last = e1;
+ e1 = e1->next;
+ }
+ while (e1 && strcmp (e1->symbol, e->symbol) == 0);
+
+ if (last == NULL)
+ {
+ /* This is a duplicate. */
+ /* FIXME: Memory leak. Sometimes pattern is not
+ xmalloced alone, but in larger chunk of memory. */
+ /* free (e->symbol); */
+ free (e);
+ }
+ else
+ {
+ e->next = last->next;
+ last->next = e;
+ }
+ }
+ else
+ {
+ *loc = e;
+ *list_loc = e;
+ list_loc = &e->next;
+ }
+ }
+ }
+ *remaining_loc = NULL;
+ *list_loc = head->remaining;
+ }
+ else
+ head->remaining = head->list;
+}
+
/* This is called when we know the name and dependencies of the
version. */
void
-lang_register_vers_node (name, version, deps)
- const char *name;
- struct bfd_elf_version_tree *version;
- struct bfd_elf_version_deps *deps;
+lang_register_vers_node (const char *name,
+ struct bfd_elf_version_tree *version,
+ struct bfd_elf_version_deps *deps)
{
struct bfd_elf_version_tree *t, **pp;
struct bfd_elf_version_expr *e1;
+ if (name == NULL)
+ name = "";
+
+ if ((name[0] == '\0' && lang_elf_version_info != NULL)
+ || (lang_elf_version_info && lang_elf_version_info->name[0] == '\0'))
+ {
+ einfo (_("%X%P: anonymous version tag cannot be combined with other version tags\n"));
+ free (version);
+ return;
+ }
+
/* Make sure this node has a unique name. */
for (t = lang_elf_version_info; t != NULL; t = t->next)
if (strcmp (t->name, name) == 0)
einfo (_("%X%P: duplicate version tag `%s'\n"), name);
+ lang_finalize_version_expr_head (&version->globals);
+ lang_finalize_version_expr_head (&version->locals);
+
/* Check the global and local match names, and make sure there
aren't any duplicates. */
- for (e1 = version->globals; e1 != NULL; e1 = e1->next)
+ for (e1 = version->globals.list; e1 != NULL; e1 = e1->next)
{
for (t = lang_elf_version_info; t != NULL; t = t->next)
{
struct bfd_elf_version_expr *e2;
- for (e2 = t->locals; e2 != NULL; e2 = e2->next)
- if (strcmp (e1->pattern, e2->pattern) == 0)
- einfo (_("%X%P: duplicate expression `%s' in version information\n"),
- e1->pattern);
+ if (t->locals.htab && e1->symbol)
+ {
+ e2 = htab_find (t->locals.htab, e1);
+ while (e2 && strcmp (e1->symbol, e2->symbol) == 0)
+ {
+ if (e1->mask == e2->mask)
+ einfo (_("%X%P: duplicate expression `%s' in version information\n"),
+ e1->symbol);
+ e2 = e2->next;
+ }
+ }
+ else if (!e1->symbol)
+ for (e2 = t->locals.remaining; e2 != NULL; e2 = e2->next)
+ if (strcmp (e1->pattern, e2->pattern) == 0 && e1->mask == e2->mask)
+ einfo (_("%X%P: duplicate expression `%s' in version information\n"),
+ e1->pattern);
}
}
- for (e1 = version->locals; e1 != NULL; e1 = e1->next)
+ for (e1 = version->locals.list; e1 != NULL; e1 = e1->next)
{
for (t = lang_elf_version_info; t != NULL; t = t->next)
{
struct bfd_elf_version_expr *e2;
- for (e2 = t->globals; e2 != NULL; e2 = e2->next)
- if (strcmp (e1->pattern, e2->pattern) == 0)
- einfo (_("%X%P: duplicate expression `%s' in version information\n"),
- e1->pattern);
+ if (t->globals.htab && e1->symbol)
+ {
+ e2 = htab_find (t->globals.htab, e1);
+ while (e2 && strcmp (e1->symbol, e2->symbol) == 0)
+ {
+ if (e1->mask == e2->mask)
+ einfo (_("%X%P: duplicate expression `%s' in version information\n"),
+ e1->symbol);
+ e2 = e2->next;
+ }
+ }
+ else if (!e1->symbol)
+ for (e2 = t->globals.remaining; e2 != NULL; e2 = e2->next)
+ if (strcmp (e1->pattern, e2->pattern) == 0 && e1->mask == e2->mask)
+ einfo (_("%X%P: duplicate expression `%s' in version information\n"),
+ e1->pattern);
}
}
version->deps = deps;
version->name = name;
- ++version_index;
- version->vernum = version_index;
+ if (name[0] != '\0')
+ {
+ ++version_index;
+ version->vernum = version_index;
+ }
+ else
+ version->vernum = 0;
for (pp = &lang_elf_version_info; *pp != NULL; pp = &(*pp)->next)
;
/* This is called when we see a version dependency. */
struct bfd_elf_version_deps *
-lang_add_vers_depend (list, name)
- struct bfd_elf_version_deps *list;
- const char *name;
+lang_add_vers_depend (struct bfd_elf_version_deps *list, const char *name)
{
struct bfd_elf_version_deps *ret;
struct bfd_elf_version_tree *t;
- ret = (struct bfd_elf_version_deps *) xmalloc (sizeof *ret);
+ ret = xmalloc (sizeof *ret);
ret->next = list;
for (t = lang_elf_version_info; t != NULL; t = t->next)
}
static void
-lang_do_version_exports_section ()
+lang_do_version_exports_section (void)
{
struct bfd_elf_version_expr *greg = NULL, *lreg;
bfd_size_type len;
if (sec == NULL)
- continue;
+ continue;
len = bfd_section_size (is->the_bfd, sec);
contents = xmalloc (len);
if (!bfd_get_section_contents (is->the_bfd, sec, contents, 0, len))
- einfo (_("%X%P: unable to read .exports section contents"), sec);
+ einfo (_("%X%P: unable to read .exports section contents\n"), sec);
p = contents;
while (p < contents + len)
{
- greg = lang_new_vers_regex (greg, p, NULL);
+ greg = lang_new_vers_pattern (greg, p, NULL);
p = strchr (p, '\0') + 1;
}
bfd_get_section_flags (is->the_bfd, sec) | SEC_EXCLUDE);
}
- lreg = lang_new_vers_regex (NULL, "*", NULL);
+ lreg = lang_new_vers_pattern (NULL, "*", NULL);
lang_register_vers_node (command_line.version_exports_section,
lang_new_vers_node (greg, lreg), NULL);
}
void
-lang_add_unique (name)
- const char *name;
+lang_add_unique (const char *name)
{
struct unique_sections *ent;
if (strcmp (ent->name, name) == 0)
return;
- ent = (struct unique_sections *) xmalloc (sizeof *ent);
+ ent = xmalloc (sizeof *ent);
ent->name = xstrdup (name);
ent->next = unique_section_list;
unique_section_list = ent;