-/* Copyright (C) 1991 Free Software Foundation, Inc.
-
+/* Linker command language support.
+ Copyright (C) 1991, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
+
This file is part of GLD, the Gnu Linker.
GLD is free software; you can redistribute it and/or modify
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-/* $Id$
- *
-*/
+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 "sysdep.h"
+#include "libiberty.h"
+#include "bfdlink.h"
#include "ld.h"
#include "ldmain.h"
-#include "ldsym.h"
#include "ldgram.h"
-#include "ldwarn.h"
-#include "ldlang.h"
#include "ldexp.h"
+#include "ldlang.h"
#include "ldemul.h"
#include "ldlex.h"
#include "ldmisc.h"
-#include "ldindr.h"
#include "ldctor.h"
-/* FORWARDS */
-PROTO(static void, print_statements,(void));
-PROTO(static void, print_statement,(lang_statement_union_type *,
- lang_output_section_statement_type *));
+#include "ldfile.h"
+#include "fnmatch.h"
+#include <ctype.h>
-/* LOCALS */
-static CONST char *startup_file;
-static lang_statement_list_type input_file_chain;
+/* FORWARDS */
+static lang_statement_union_type *new_statement PARAMS ((enum statement_enum,
+ size_t,
+ lang_statement_list_type*));
-/* Points to the last statement in the .data section, so we can add
- stuff to the data section without pain */
-static lang_statement_list_type end_of_data_section_statement_list;
-/* List of statements needed to handle constructors */
-extern lang_statement_list_type constructor_list;
+/* LOCALS */
+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 lang_output_section_statement_type *default_common_section;
static boolean map_option_f;
static lang_statement_list_type lang_output_section_statement;
static CONST char *current_target;
static CONST char *output_target;
-static size_t longest_section_name = 8;
-static asection common_section;
-static section_userdata_type common_section_userdata;
static lang_statement_list_type statement_list;
+static struct lang_phdr *lang_phdr_list;
+
+static void lang_for_each_statement_worker
+ PARAMS ((void (*func) (lang_statement_union_type *),
+ lang_statement_union_type *s));
+static lang_input_statement_type *new_afile
+ PARAMS ((const char *name, lang_input_file_enum_type file_type,
+ const char *target, boolean add_to_list));
+static void init_os PARAMS ((lang_output_section_statement_type *s));
+static void exp_init_os PARAMS ((etree_type *));
+static void section_already_linked PARAMS ((bfd *, asection *, PTR));
+static boolean wildcardp PARAMS ((const char *));
+static void wild_section PARAMS ((lang_wild_statement_type *ptr,
+ const char *section,
+ lang_input_statement_type *file,
+ lang_output_section_statement_type *output));
+static lang_input_statement_type *lookup_name PARAMS ((const char *name));
+static void load_symbols PARAMS ((lang_input_statement_type *entry,
+ lang_statement_list_type *));
+static void wild_file PARAMS ((lang_wild_statement_type *, const char *,
+ lang_input_statement_type *,
+ lang_output_section_statement_type *));
+static void wild PARAMS ((lang_wild_statement_type *s,
+ const char *section, const char *file,
+ const char *target,
+ lang_output_section_statement_type *output));
+static bfd *open_output PARAMS ((const char *name));
+static void ldlang_open_output PARAMS ((lang_statement_union_type *statement));
+static void open_input_bfds
+ PARAMS ((lang_statement_union_type *statement, 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 *s,
+ const char *target,
+ lang_output_section_statement_type *output_section_statement));
+static void print_output_section_statement
+ PARAMS ((lang_output_section_statement_type *output_section_statement));
+static void print_assignment
+ PARAMS ((lang_assignment_statement_type *assignment,
+ lang_output_section_statement_type *output_section));
+static void print_input_statement PARAMS ((lang_input_statement_type *statm));
+static boolean print_one_symbol PARAMS ((struct bfd_link_hash_entry *, PTR));
+static void print_input_section PARAMS ((lang_input_section_type *in));
+static void print_fill_statement PARAMS ((lang_fill_statement_type *fill));
+static void print_data_statement PARAMS ((lang_data_statement_type *data));
+static void print_address_statement PARAMS ((lang_address_statement_type *));
+static void print_reloc_statement PARAMS ((lang_reloc_statement_type *reloc));
+static void print_padding_statement PARAMS ((lang_padding_statement_type *s));
+static void print_wild_statement
+ PARAMS ((lang_wild_statement_type *w,
+ lang_output_section_statement_type *os));
+static void print_group
+ PARAMS ((lang_group_statement_type *, lang_output_section_statement_type *));
+static void print_statement PARAMS ((lang_statement_union_type *s,
+ lang_output_section_statement_type *os));
+static void print_statement_list PARAMS ((lang_statement_union_type *s,
+ lang_output_section_statement_type *os));
+static void print_statements PARAMS ((void));
+static bfd_vma insert_pad PARAMS ((lang_statement_union_type **this_ptr,
+ fill_type fill, unsigned int power,
+ asection *output_section_statement,
+ bfd_vma dot));
+static bfd_vma size_input_section
+ PARAMS ((lang_statement_union_type **this_ptr,
+ lang_output_section_statement_type *output_section_statement,
+ fill_type fill, bfd_vma dot, boolean relax));
+static void lang_finish PARAMS ((void));
+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 lang_record_phdrs PARAMS ((void));
/* EXPORTS */
-boolean relaxing;
lang_output_section_statement_type *abs_output_section;
lang_statement_list_type *stat_ptr = &statement_list;
-lang_input_statement_type *script_file = 0;
-boolean option_longmap = false;
-lang_statement_list_type file_chain = {0};
-CONST char *entry_symbol = 0;
-bfd_size_type largest_section = 0;
+lang_statement_list_type file_chain = { 0 };
+const char *entry_symbol = NULL;
+boolean entry_from_cmdline;
boolean lang_has_input_file = false;
-lang_output_section_statement_type *create_object_symbols = 0;
boolean had_output_filename = false;
boolean lang_float_flag = false;
-/* IMPORTS */
-extern char *default_target;
-
-extern unsigned int undefined_global_sym_count;
-extern char *current_file;
-extern bfd *output_bfd;
-extern enum bfd_architecture ldfile_output_architecture;
-extern unsigned long ldfile_output_machine;
-extern char *ldfile_output_machine_name;
-extern ldsym_type *symbol_head;
-extern unsigned int commons_pending;
-extern args_type command_line;
-extern ld_config_type config;
-extern boolean had_script;
-extern boolean write_map;
-
-
-#ifdef __STDC__
+boolean delete_output_file_on_failure = false;
+struct lang_nocrossrefs *nocrossref_list;
+
+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
#define outside_symbol_address(q) ((q)->value + outside_section_address(q->section))
-void EXFUN(lang_add_data,( int type , union etree_union *exp));
-
-static void
-DEFUN(print_size,(value),
- size_t value)
-{
- fprintf(config.map_file, "%5x", (unsigned)value);
-}
-static void
-DEFUN(print_alignment,(value),
- unsigned int value)
-{
- fprintf(config.map_file, "2**%1u",value);
-}
-static void
-DEFUN(print_fill,(value),
- fill_type value)
-{
- fprintf(config.map_file, "%04x",(unsigned)value);
-}
-
+#define SECTION_NAME_MAP_LENGTH (16)
-static void
-DEFUN(print_section,(name),
- CONST char *CONST name)
+PTR
+stat_alloc (size)
+ size_t size;
{
- fprintf(config.map_file, "%*s", -longest_section_name, name);
+ return obstack_alloc (&stat_obstack, size);
}
/*----------------------------------------------------------------------
function for each node
*/
-static void
-DEFUN(lang_for_each_statement_worker,(func, s),
- void (*func)() AND
- lang_statement_union_type *s)
+static void
+lang_for_each_statement_worker (func, s)
+ void (*func) PARAMS ((lang_statement_union_type *));
+ lang_statement_union_type *s;
{
- for (; s != (lang_statement_union_type *)NULL ; s = s->next)
- {
- func(s);
+ for (; s != (lang_statement_union_type *) NULL; s = s->next)
+ {
+ func (s);
- switch (s->header.type) {
+ switch (s->header.type)
+ {
case lang_constructors_statement_enum:
- lang_for_each_statement_worker(func, constructor_list.head);
+ lang_for_each_statement_worker (func, constructor_list.head);
break;
case lang_output_section_statement_enum:
lang_for_each_statement_worker
- (func,
+ (func,
s->output_section_statement.children.head);
break;
case lang_wild_statement_enum:
lang_for_each_statement_worker
- (func,
+ (func,
s->wild_statement.children.head);
break;
+ case lang_group_statement_enum:
+ lang_for_each_statement_worker (func,
+ s->group_statement.children.head);
+ break;
case lang_data_statement_enum:
+ case lang_reloc_statement_enum:
case lang_object_symbols_statement_enum:
case lang_output_statement_enum:
case lang_target_statement_enum:
case lang_input_section_enum:
case lang_input_statement_enum:
- case lang_fill_statement_enum:
case lang_assignment_statement_enum:
case lang_padding_statement_enum:
case lang_address_statement_enum:
+ case lang_fill_statement_enum:
break;
default:
- FAIL();
+ FAIL ();
break;
}
- }
+ }
}
void
-DEFUN(lang_for_each_statement,(func),
- void (*func)())
+lang_for_each_statement (func)
+ void (*func) PARAMS ((lang_statement_union_type *));
{
- lang_for_each_statement_worker(func,
- statement_list.head);
+ lang_for_each_statement_worker (func,
+ statement_list.head);
}
+
/*----------------------------------------------------------------------*/
-void
-DEFUN(lang_list_init,(list),
- lang_statement_list_type *list)
+void
+lang_list_init (list)
+ lang_statement_list_type *list;
{
-list->head = (lang_statement_union_type *)NULL;
-list->tail = &list->head;
+ list->head = (lang_statement_union_type *) NULL;
+ list->tail = &list->head;
}
-
/*----------------------------------------------------------------------
-
+
build a new statement node for the parse tree
*/
static
-lang_statement_union_type*
-DEFUN(new_statement,(type, size, list),
- enum statement_enum type AND
- bfd_size_type size AND
- lang_statement_list_type *list)
+lang_statement_union_type *
+new_statement (type, size, list)
+ enum statement_enum type;
+ size_t size;
+ lang_statement_list_type * list;
{
lang_statement_union_type *new = (lang_statement_union_type *)
- ldmalloc(size);
+ stat_alloc (size);
+
new->header.type = type;
- new->header.next = (lang_statement_union_type *)NULL;
- lang_statement_append(list, new, &new->header.next);
+ new->header.next = (lang_statement_union_type *) NULL;
+ lang_statement_append (list, new, &new->header.next);
return new;
}
*/
static lang_input_statement_type *
-DEFUN(new_afile, (name, file_type, target),
- CONST char *CONST name AND
- CONST lang_input_file_enum_type file_type AND
- CONST char *CONST target)
+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;
{
- lang_input_statement_type *p = new_stat(lang_input_statement,
- stat_ptr);
+ lang_input_statement_type *p;
+
+ if (add_to_list)
+ p = new_stat (lang_input_statement, stat_ptr);
+ else
+ {
+ p = ((lang_input_statement_type *)
+ stat_alloc (sizeof (lang_input_statement_type)));
+ p->header.next = NULL;
+ }
+
lang_has_input_file = true;
p->target = target;
- switch (file_type) {
- case lang_input_file_is_symbols_only_enum:
- p->filename = name;
- p->is_archive =false;
- p->real = true;
- p->local_sym_name= name;
- 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->local_sym_name= name;
- p->just_syms_flag = false;
- p->search_dirs_flag =false;
- break;
- case lang_input_file_is_l_enum:
- p->is_archive = true;
- p->filename = name;
- p->real = true;
- p->local_sym_name = concat("-l",name,"");
- p->just_syms_flag = false;
- p->search_dirs_flag = true;
- break;
- case lang_input_file_is_search_file_enum:
- case lang_input_file_is_marker_enum:
- p->filename = name;
- p->is_archive =false;
- p->real = true;
- p->local_sym_name= name;
- 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->local_sym_name= name;
- p->just_syms_flag = false;
- p->search_dirs_flag =false;
- break;
- default:
- FAIL();
- }
- p->asymbols = (asymbol **)NULL;
- p->superfile = (lang_input_statement_type *)NULL;
- p->next_real_file = (lang_statement_union_type*)NULL;
- p->next = (lang_statement_union_type*)NULL;
+ switch (file_type)
+ {
+ case lang_input_file_is_symbols_only_enum:
+ p->filename = name;
+ p->is_archive = false;
+ p->real = true;
+ p->local_sym_name = name;
+ 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->local_sym_name = name;
+ p->just_syms_flag = false;
+ p->search_dirs_flag = false;
+ break;
+ case lang_input_file_is_l_enum:
+ 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;
+ break;
+ case lang_input_file_is_marker_enum:
+ p->filename = name;
+ p->is_archive = false;
+ p->real = false;
+ p->local_sym_name = name;
+ p->just_syms_flag = false;
+ p->search_dirs_flag = true;
+ break;
+ case lang_input_file_is_search_file_enum:
+ p->filename = name;
+ p->is_archive = false;
+ p->real = true;
+ p->local_sym_name = name;
+ 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->local_sym_name = name;
+ 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->symbol_count = 0;
- p->common_output_section = (asection *)NULL;
- lang_statement_append(&input_file_chain,
- (lang_statement_union_type *)p,
- &p->next_real_file);
+ p->dynamic = config.dynamic_link;
+ p->whole_archive = whole_archive;
+ p->loaded = false;
+ lang_statement_append (&input_file_chain,
+ (lang_statement_union_type *) p,
+ &p->next_real_file);
return p;
}
-
-
lang_input_statement_type *
-DEFUN(lang_add_input_file,(name, file_type, target),
- char *name AND
- lang_input_file_enum_type file_type AND
- char *target)
+lang_add_input_file (name, file_type, target)
+ CONST char *name;
+ lang_input_file_enum_type file_type;
+ CONST char *target;
{
- /* Look it up or build a new one */
lang_has_input_file = true;
-#if 0
- lang_input_statement_type *p;
-
- for (p = (lang_input_statement_type *)input_file_chain.head;
- p != (lang_input_statement_type *)NULL;
- p = (lang_input_statement_type *)(p->next_real_file))
- {
- /* Sometimes we have incomplete entries in here */
- if (p->filename != (char *)NULL) {
- if(strcmp(name,p->filename) == 0) return p;
- }
-
- }
-#endif
- return new_afile(name, file_type, target);
+ return new_afile (name, file_type, target, true);
}
-
/* Build enough state so that the parser can build its tree */
void
-DEFUN_VOID(lang_init)
+lang_init ()
{
+ obstack_begin (&stat_obstack, 1000);
- stat_ptr= &statement_list;
- lang_list_init(stat_ptr);
+ stat_ptr = &statement_list;
- 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);
-}
+ lang_list_init (stat_ptr);
+ 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);
+ abs_output_section = lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME);
+
+ abs_output_section->bfd_section = bfd_abs_section_ptr;
+
+}
/*----------------------------------------------------------------------
- A region is an area of memory declared with the
- MEMORY { name:org=exp, len=exp ... }
- syntax.
+ A region is an area of memory declared with the
+ MEMORY { name:org=exp, len=exp ... }
+ syntax.
We maintain a list of all the regions here
static lang_memory_region_type **lang_memory_region_list_tail = &lang_memory_region_list;
lang_memory_region_type *
-DEFUN(lang_memory_region_lookup,(name),
- CONST char *CONST name)
+lang_memory_region_lookup (name)
+ CONST char *CONST name;
{
- lang_memory_region_type *p = lang_memory_region_list;
+ lang_memory_region_type *p = lang_memory_region_list;
+
for (p = lang_memory_region_list;
- p != ( lang_memory_region_type *)NULL;
- p = p->next) {
- if (strcmp(p->name, name) == 0) {
- return p;
- }
- }
- if (strcmp(name,"*default*")==0) {
- /* This is the default region, dig out first one on the list */
- if (lang_memory_region_list != (lang_memory_region_type*)NULL){
- return lang_memory_region_list;
- }
- }
+ p != (lang_memory_region_type *) NULL;
+ p = p->next)
{
- lang_memory_region_type *new =
- (lang_memory_region_type *)ldmalloc((bfd_size_type)(sizeof(lang_memory_region_type)));
- new->name = buystring(name);
- new->next = (lang_memory_region_type *)NULL;
+ if (strcmp (p->name, name) == 0)
+ {
+ return p;
+ }
+ }
- *lang_memory_region_list_tail = new;
- lang_memory_region_list_tail = &new->next;
- new->origin = 0;
- new->length = ~0;
- new->current = 0;
- return new;
+#if 0
+ /* This code used to always use the first region in the list as the
+ default region. I changed it to instead use a region
+ encompassing all of memory as the default region. This permits
+ 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 (lang_memory_region_list != (lang_memory_region_type *) NULL)
+ {
+ return lang_memory_region_list;
+ }
}
+#endif
+
+ {
+ lang_memory_region_type *new =
+ (lang_memory_region_type *) stat_alloc (sizeof (lang_memory_region_type));
+
+ new->name = buystring (name);
+ new->next = (lang_memory_region_type *) NULL;
+
+ *lang_memory_region_list_tail = new;
+ lang_memory_region_list_tail = &new->next;
+ new->origin = 0;
+ new->length = ~(bfd_size_type)0;
+ new->current = 0;
+ new->had_full_message = false;
+
+ return new;
+ }
}
lang_output_section_statement_type *
-DEFUN(lang_output_section_find,(name),
- CONST char * CONST name)
+lang_output_section_find (name)
+ 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 != (lang_statement_union_type *) NULL;
u = lookup->next)
- {
- lookup = &u->output_section_statement;
- if (strcmp(name, lookup->name)==0) {
+ {
+ lookup = &u->output_section_statement;
+ if (strcmp (name, lookup->name) == 0)
+ {
return lookup;
}
- }
- return (lang_output_section_statement_type *)NULL;
+ }
+ return (lang_output_section_statement_type *) NULL;
}
lang_output_section_statement_type *
-DEFUN(lang_output_section_statement_lookup,(name),
- CONST char * CONST name)
+lang_output_section_statement_lookup (name)
+ CONST char *CONST name;
{
lang_output_section_statement_type *lookup;
- lookup =lang_output_section_find(name);
- if (lookup == (lang_output_section_statement_type *)NULL) {
-
- lookup =(lang_output_section_statement_type *)
- new_stat(lang_output_section_statement, stat_ptr);
- lookup->region = (lang_memory_region_type *)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->addr_tree = (etree_type *)NULL;
- lang_list_init(&lookup->children);
-
- lang_statement_append(&lang_output_section_statement,
- (lang_statement_union_type *)lookup,
- &lookup->next);
- }
- return lookup;
-}
-
-
-
+ lookup = lang_output_section_find (name);
+ if (lookup == (lang_output_section_statement_type *) NULL)
+ {
-static void
-DEFUN(print_flags, ( ignore_flags),
- int *ignore_flags)
-{
- fprintf(config.map_file, "(");
-#if 0
- if (flags->flag_read) fprintf(outfile,"R");
- if (flags->flag_write) fprintf(outfile,"W");
- if (flags->flag_executable) fprintf(outfile,"X");
- if (flags->flag_loadable) fprintf(outfile,"L");
-#endif
- fprintf(config.map_file, ")");
+ lookup = (lang_output_section_statement_type *)
+ new_stat (lang_output_section_statement, stat_ptr);
+ lookup->region = (lang_memory_region_type *) 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->sectype = normal_section;
+ lookup->addr_tree = (etree_type *) NULL;
+ lang_list_init (&lookup->children);
+
+ lookup->memspec = (CONST char *) NULL;
+ lookup->flags = 0;
+ lookup->subsection_alignment = -1;
+ lookup->section_alignment = -1;
+ lookup->load_base = (union etree_union *) NULL;
+ lookup->phdrs = NULL;
+
+ lang_statement_append (&lang_output_section_statement,
+ (lang_statement_union_type *) lookup,
+ &lookup->next);
+ }
+ return lookup;
}
void
-DEFUN_VOID(lang_map)
+lang_map ()
{
lang_memory_region_type *m;
- fprintf(config.map_file,"**MEMORY CONFIGURATION**\n\n");
-#ifdef HOST_64_BIT
- fprintf(config.map_file,"name\t\torigin\t\tlength\t\tattributes\n");
-#else
- fprintf(config.map_file,"name\t\torigin length\t\tattributes\n");
-#endif
+
+ minfo ("\nMemory Configuration\n\n");
+ fprintf (config.map_file, "%-16s %-18s %-18s\n",
+ "Name", "Origin", "Length");
+
for (m = lang_memory_region_list;
- m != (lang_memory_region_type *)NULL;
- m = m->next)
+ m != (lang_memory_region_type *) NULL;
+ m = m->next)
{
- fprintf(config.map_file,"%-16s", m->name);
- print_address(m->origin);
- print_space();
- print_address(m->length);
- print_space();
- print_flags( &m->flags);
- fprintf(config.map_file,"\n");
+ char buf[100];
+ int len;
+
+ fprintf (config.map_file, "%-16s ", m->name);
+
+ sprintf_vma (buf, m->origin);
+ minfo ("0x%s ", buf);
+ len = strlen (buf);
+ while (len < 16)
+ {
+ print_space ();
+ ++len;
+ }
+
+ minfo ("0x%V\n", m->length);
}
- fprintf(config.map_file,"\n\n**LINK EDITOR MEMORY MAP**\n\n");
- fprintf(config.map_file,"output input virtual\n");
- fprintf(config.map_file,"section section address tsize\n\n");
- print_statements();
+ fprintf (config.map_file, "\nLinker script and memory map\n\n");
+ print_statements ();
}
-/*
- *
- */
-static void
-DEFUN(init_os,(s),
- lang_output_section_statement_type *s)
-{
- asection *section = bfd_get_section_by_name(output_bfd, s->name);
- section_userdata_type *new =
- (section_userdata_type *)
- ldmalloc((bfd_size_type)(sizeof(section_userdata_type)));
-
- s->bfd_section = bfd_get_section_by_name(output_bfd, s->name);
- if (s->bfd_section == (asection *)NULL)
- s->bfd_section = bfd_make_section(output_bfd, s->name);
- if (s->bfd_section == (asection *)NULL) {
- einfo("%P%F output format %s cannot represent section called %s\n",
- output_bfd->xvec->name, s->name);
- }
+/* Initialize an output section. */
+
+static void
+init_os (s)
+ lang_output_section_statement_type *s;
+{
+ section_userdata_type *new;
+
+ if (s->bfd_section != NULL)
+ return;
+
+ if (strcmp (s->name, DISCARD_SECTION_NAME) == 0)
+ einfo ("%P%F: Illegal use of `%s' section", DISCARD_SECTION_NAME);
+
+ new = ((section_userdata_type *)
+ stat_alloc (sizeof (section_userdata_type)));
+
+ s->bfd_section = bfd_get_section_by_name (output_bfd, s->name);
+ if (s->bfd_section == (asection *) NULL)
+ s->bfd_section = bfd_make_section (output_bfd, s->name);
+ if (s->bfd_section == (asection *) NULL)
+ {
+ einfo ("%P%F: output format %s cannot represent section called %s\n",
+ output_bfd->xvec->name, s->name);
+ }
s->bfd_section->output_section = s->bfd_section;
-/* s->bfd_section->flags = s->flags;*/
/* 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) = (PTR) 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);
}
-/***********************************************************************
- The wild routines.
-
- These expand statements like *(.text) and foo.o to a list of
- explicit actions, like foo.o(.text), bar.o(.text) and
- foo.o(.text,.data) .
+/* Make sure that all output sections mentioned in an expression are
+ initialized. */
- The toplevel routine, wild, takes a statement, section, file and
- target. If either the section or file is null it is taken to be the
- wildcard. Seperate lang_input_section statements are created for
- each part of the expanstion, and placed after the statement provided.
-
-*/
-
static void
-DEFUN(wild_doit,(ptr, section, output, file),
- lang_statement_list_type *ptr AND
- asection *section AND
- lang_output_section_statement_type *output AND
- lang_input_statement_type *file)
+exp_init_os (exp)
+ etree_type *exp;
{
- if(output->bfd_section == (asection *)NULL)
+ switch (exp->type.node_class)
{
- init_os(output);
- }
-
- if (section != (asection *)NULL
- && section->output_section == (asection *)NULL) {
- /* Add a section reference to the list */
- lang_input_section_type *new = new_stat(lang_input_section, ptr);
-
- new->section = section;
- new->ifile = file;
- section->output_section = output->bfd_section;
- section->output_section->flags |= section->flags;
- if (section->alignment_power > output->bfd_section->alignment_power) {
- output->bfd_section->alignment_power = section->alignment_power;
- }
- }
-}
+ case etree_assign:
+ exp_init_os (exp->assign.src);
+ break;
-static asection *
-DEFUN(our_bfd_get_section_by_name,(abfd, section),
-bfd *abfd AND
-CONST char *section)
-{
- return bfd_get_section_by_name(abfd, section);
-}
+ case etree_binary:
+ exp_init_os (exp->binary.lhs);
+ exp_init_os (exp->binary.rhs);
+ break;
-static void
-DEFUN(wild_section,(ptr, section, file , output),
- lang_wild_statement_type *ptr AND
- CONST char *section AND
- lang_input_statement_type *file AND
- lang_output_section_statement_type *output)
-{
- asection *s;
- if (file->just_syms_flag == false) {
- if (section == (char *)NULL) {
- /* Do the creation to all sections in the file */
- for (s = file->the_bfd->sections; s != (asection *)NULL; s=s->next) {
- wild_doit(&ptr->children, s, output, file);
- }
- }
- else {
- /* Do the creation to the named section only */
- wild_doit(&ptr->children,
- our_bfd_get_section_by_name(file->the_bfd, section),
- output, file);
- }
- }
-}
+ case etree_trinary:
+ exp_init_os (exp->trinary.cond);
+ exp_init_os (exp->trinary.lhs);
+ exp_init_os (exp->trinary.rhs);
+ break;
+ case etree_unary:
+ exp_init_os (exp->unary.child);
+ break;
-/* passed a file name (which must have been seen already and added to
- the statement tree. We will see if it has been opened already and
- had its symbols read. If not then we'll read it.
+ case etree_name:
+ switch (exp->type.node_code)
+ {
+ case ADDR:
+ case LOADADDR:
+ case SIZEOF:
+ {
+ lang_output_section_statement_type *os;
- Archives are pecuilar here. We may open them once, but if they do
- not define anything we need at the time, they won't have all their
- symbols read. If we need them later, we'll have to redo it.
- */
-static
-lang_input_statement_type *
-DEFUN(lookup_name,(name),
- CONST char * CONST name)
-{
- lang_input_statement_type *search;
- for(search = (lang_input_statement_type *)input_file_chain.head;
- search != (lang_input_statement_type *)NULL;
- search = (lang_input_statement_type *)search->next_real_file)
- {
- if (search->filename == (char *)NULL && name == (char *)NULL) {
- return search;
- }
- if (search->filename != (char *)NULL && name != (char *)NULL) {
- if (strcmp(search->filename, name) == 0) {
- ldmain_open_file_read_symbol(search);
- return search;
+ os = lang_output_section_find (exp->name.name);
+ if (os != NULL && os->bfd_section == NULL)
+ init_os (os);
}
}
- }
-
- /* There isn't an afile entry for this file yet, this must be
- because the name has only appeared inside a load script and not
- on the command line */
- search = new_afile(name, lang_input_file_is_file_enum, default_target);
- ldmain_open_file_read_symbol(search);
- return search;
-
+ break;
+ default:
+ break;
+ }
}
+/* Sections marked with the SEC_LINK_ONCE flag should only be linked
+ once into the output. This routine checks each sections, and
+ arranges to discard it if a section of the same name has already
+ been linked. This code assumes that all relevant sections have the
+ SEC_LINK_ONCE flag set; that is, it does not depend solely upon the
+ section name. This is called via bfd_map_over_sections. */
+
+/*ARGSUSED*/
static void
-DEFUN(wild,(s, section, file, target, output),
- lang_wild_statement_type *s AND
- CONST char *CONST section AND
- CONST char *CONST file AND
- CONST char *CONST target AND
- lang_output_section_statement_type *output)
+section_already_linked (abfd, sec, data)
+ bfd *abfd;
+ asection *sec;
+ PTR data;
{
- lang_input_statement_type *f;
- if (file == (char *)NULL) {
- /* Perform the iteration over all files in the list */
- for (f = (lang_input_statement_type *)file_chain.head;
- f != (lang_input_statement_type *)NULL;
- f = (lang_input_statement_type *)f->next) {
- wild_section(s, section, f, output);
+ lang_input_statement_type *entry = (lang_input_statement_type *) data;
+ struct sec_link_once
+ {
+ struct sec_link_once *next;
+ asection *sec;
+ };
+ static struct sec_link_once *sec_link_once_list;
+ flagword flags;
+ const char *name;
+ struct sec_link_once *l;
+
+ /* If we are only reading symbols from this object, then we want to
+ discard all sections. */
+ if (entry->just_syms_flag)
+ {
+ sec->output_section = bfd_abs_section_ptr;
+ sec->output_offset = sec->vma;
+ return;
}
- }
- else {
- /* Perform the iteration over a single file */
- wild_section( s, section, lookup_name(file), output);
- }
- if (section != (char *)NULL
- && strcmp(section,"COMMON") == 0
- && default_common_section == (lang_output_section_statement_type*)NULL)
- {
- /* Remember the section that common is going to incase we later
- get something which doesn't know where to put it */
- default_common_section = output;
- }
-}
-
-/*
- read in all the files
- */
-static bfd *
-DEFUN(open_output,(name),
- CONST char *CONST name)
-{
- extern CONST char *output_filename;
- bfd *output;
- if (output_target == (char *)NULL) {
- if (current_target != (char *)NULL)
- output_target = current_target;
- else
- output_target = default_target;
- }
- output = bfd_openw(name, output_target);
- output_filename = name;
- if (output == (bfd *)NULL)
- {
- if (bfd_error == invalid_target) {
- einfo("%P%F target %s not found\n", output_target);
- }
- einfo("%P%F problem opening output file %s, %E", name);
- }
-
-/* output->flags |= D_PAGED;*/
- bfd_set_format(output, bfd_object);
- return output;
-}
+ flags = bfd_get_section_flags (abfd, sec);
+ if ((flags & SEC_LINK_ONCE) == 0)
+ return;
+ name = bfd_get_section_name (abfd, sec);
+ for (l = sec_link_once_list; l != NULL; l = l->next)
+ {
+ if (strcmp (name, bfd_get_section_name (l->sec->owner, l->sec)) == 0)
+ {
+ /* The section has already been linked. See if we should
+ issue a warning. */
+ switch (flags & SEC_LINK_DUPLICATES)
+ {
+ default:
+ abort ();
-static void
-DEFUN(ldlang_open_output,(statement),
- lang_statement_union_type *statement)
-{
- switch (statement->header.type)
- {
- case lang_output_statement_enum:
- output_bfd = open_output(statement->output_statement.name);
- ldemul_set_output_arch();
- if (config.magic_demand_paged && !config.relocateable_output)
- output_bfd->flags |= D_PAGED;
- else
- output_bfd->flags &= ~D_PAGED;
- if (config.text_read_only)
- output_bfd->flags |= WP_TEXT;
- else
- output_bfd->flags &= ~WP_TEXT;
- break;
+ case SEC_LINK_DUPLICATES_DISCARD:
+ break;
- case lang_target_statement_enum:
- current_target = statement->target_statement.target;
- break;
- default:
- break;
- }
-}
+ case SEC_LINK_DUPLICATES_ONE_ONLY:
+ einfo ("%P: %B: warning: ignoring duplicate section `%s'\n",
+ abfd, name);
+ break;
-static void
-DEFUN(open_input_bfds,(statement),
- lang_statement_union_type *statement)
-{
- switch (statement->header.type)
- {
- case lang_target_statement_enum:
- current_target = statement->target_statement.target;
- break;
- case lang_wild_statement_enum:
- /* Maybe we should load the file's symbols */
- if (statement->wild_statement.filename)
- {
- (void) lookup_name(statement->wild_statement.filename);
- }
- break;
- case lang_input_statement_enum:
- if (statement->input_statement.real == true)
- {
- statement->input_statement.target = current_target;
- lookup_name(statement->input_statement.filename);
+ case SEC_LINK_DUPLICATES_SAME_CONTENTS:
+ /* FIXME: We should really dig out the contents of both
+ sections and memcmp them. The COFF/PE spec says that
+ the Microsoft linker does not implement this
+ correctly, so I'm not going to bother doing it
+ either. */
+ /* Fall through. */
+ case SEC_LINK_DUPLICATES_SAME_SIZE:
+ if (bfd_section_size (abfd, sec)
+ != bfd_section_size (l->sec->owner, l->sec))
+ einfo ("%P: %B: warning: duplicate section `%s' has different size\n",
+ abfd, name);
+ break;
}
- break;
- default:
- break;
- }
-}
-/* If there are [COMMONS] statements, put a wild one into the bss section */
-static void
-lang_reasonable_defaults()
-{
+ /* Set the output_section field so that wild_doit does not
+ create a lang_input_section structure for this section. */
+ sec->output_section = bfd_abs_section_ptr;
-abs_output_section = lang_output_section_statement_lookup(BFD_ABS_SECTION_NAME);
+ return;
+ }
+ }
-abs_output_section->bfd_section = &bfd_abs_section;
+ /* This is the first section with this name. Record it. */
-
-#if 0
- lang_output_section_statement_lookup(".text");
- lang_output_section_statement_lookup(".data");
+ l = (struct sec_link_once *) xmalloc (sizeof *l);
+ l->sec = sec;
+ l->next = sec_link_once_list;
+ sec_link_once_list = l;
+}
+\f
+/* The wild routines.
- default_common_section =
- lang_output_section_statement_lookup(".bss");
+ These expand statements like *(.text) and foo.o to a list of
+ explicit actions, like foo.o(.text), bar.o(.text) and
+ foo.o(.text, .data). */
+/* Return true if the PATTERN argument is a wildcard pattern. */
- if (placed_commons == false) {
- lang_wild_statement_type *new =
- new_stat(lang_wild_statement,
- &default_common_section->children);
- new->section_name = "COMMON";
- new->filename = (char *)NULL;
- lang_list_init(&new->children);
- }
-#endif
+static boolean
+wildcardp (pattern)
+ const char *pattern;
+{
+ const char *s;
+ for (s = pattern; *s != '\0'; ++s)
+ if (*s == '?'
+ || *s == '\\'
+ || *s == '*'
+ || *s == '[')
+ return true;
+ return false;
}
-/*
- 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 {
- struct ldlang_undef_chain_list *next;
- char *name;
-} ldlang_undef_chain_list_type;
-
-static ldlang_undef_chain_list_type *ldlang_undef_chain_list_head;
+/* Add SECTION to the output section OUTPUT. Do this by creating a
+ lang_input_section statement which is placed at PTR. FILE is the
+ input file which holds SECTION. */
void
-DEFUN(ldlang_add_undef,(name),
- CONST char *CONST name)
+wild_doit (ptr, section, output, file)
+ lang_statement_list_type *ptr;
+ asection *section;
+ lang_output_section_statement_type *output;
+ lang_input_statement_type *file;
{
- ldlang_undef_chain_list_type *new =
- (ldlang_undef_chain_list_type
- *)ldmalloc((bfd_size_type)(sizeof(ldlang_undef_chain_list_type)));
+ flagword flags;
+ boolean discard;
- new->next = ldlang_undef_chain_list_head;
- ldlang_undef_chain_list_head = new;
+ flags = bfd_get_section_flags (section->owner, section);
- new->name = buystring(name);
-}
-/* Run through the list of undefineds created above and place them
- into the linker hash table as undefined symbols belonging to the
- script file.
-*/
-static void
-DEFUN_VOID(lang_place_undefineds)
-{
- ldlang_undef_chain_list_type *ptr = ldlang_undef_chain_list_head;
- while (ptr != (ldlang_undef_chain_list_type*)NULL) {
- ldsym_type *sy = ldsym_get(ptr->name);
- asymbol *def;
- asymbol **def_ptr = (asymbol **)ldmalloc((bfd_size_type)(sizeof(asymbol **)));
- def = (asymbol *)bfd_make_empty_symbol(script_file->the_bfd);
- *def_ptr= def;
- def->name = ptr->name;
- def->section = &bfd_und_section;
- Q_enter_global_ref(def_ptr);
- ptr = ptr->next;
- }
-}
+ 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 input sections which are assigned to a section named
+ DISCARD_SECTION_NAME. */
+ if (strcmp (output->name, DISCARD_SECTION_NAME) == 0)
+ discard = true;
-/* Copy important data from out internal form to the bfd way. Also
- create a section for the dummy file
- */
+ /* 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;
-static void
-DEFUN_VOID(lang_create_output_section_statements)
-{
- lang_statement_union_type*os;
- for (os = lang_output_section_statement.head;
- os != (lang_statement_union_type*)NULL;
- os = os->output_section_statement.next) {
- lang_output_section_statement_type *s =
- &os->output_section_statement;
- init_os(s);
- }
+ if (discard)
+ {
+ if (section->output_section == NULL)
+ {
+ /* This prevents future calls from assigning this section. */
+ section->output_section = bfd_abs_section_ptr;
+ }
+ return;
+ }
-}
+ if (section->output_section == NULL)
+ {
+ lang_input_section_type *new;
-static void
-DEFUN_VOID(lang_init_script_file)
-{
- script_file = lang_add_input_file("script file",
- lang_input_file_is_fake_enum,
- (char *)NULL);
- script_file->the_bfd = bfd_create("script file", output_bfd);
- script_file->symbol_count = 0;
- script_file->the_bfd->sections = output_bfd->sections;
-}
+ if (output->bfd_section == NULL)
+ init_os (output);
+ /* Add a section reference to the list */
+ new = new_stat (lang_input_section, ptr);
+ new->section = section;
+ new->ifile = file;
+ section->output_section = output->bfd_section;
+ /* We don't copy the SEC_NEVER_LOAD flag from an input section
+ to an output section, because we want to be able to include a
+ SEC_NEVER_LOAD section in the middle of an otherwise loaded
+ section (I don't know why we want to do this, but we do).
+ build_link_order in ldwrite.c handles this case by turning
+ the embedded SEC_NEVER_LOAD section into a fill.
-/* Open input files and attatch to output sections */
-static void
-DEFUN(map_input_to_output_sections,(s, target, output_section_statement),
- lang_statement_union_type *s AND
- CONST char *target AND
- lang_output_section_statement_type *output_section_statement)
-{
- for (; s != (lang_statement_union_type *)NULL ; s = s->next)
- {
- switch (s->header.type) {
+ If final link, don't copy the SEC_LINK_ONCE flags, they've already
+ been processed. One reason to do this is that on pe format targets,
+ .text$foo sections go into .text and it's odd to see .text with
+ SEC_LINK_ONCE set. */
+ section->output_section->flags |=
+ section->flags & (flagword) (~ (SEC_NEVER_LOAD
+ | (! link_info.relocateable
+ ? SEC_LINK_ONCE | SEC_LINK_DUPLICATES
+ : 0)));
- case lang_wild_statement_enum:
- wild(&s->wild_statement, s->wild_statement.section_name,
- s->wild_statement.filename, 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_output_section_statement_enum:
- map_input_to_output_sections(s->output_section_statement.children.head,
- target,
- &s->output_section_statement);
- break;
- case lang_output_statement_enum:
- break;
- case lang_target_statement_enum:
- target = s->target_statement.target;
- break;
- case lang_fill_statement_enum:
- case lang_input_section_enum:
- case lang_object_symbols_statement_enum:
- case lang_data_statement_enum:
- case lang_assignment_statement_enum:
- case lang_padding_statement_enum:
- break;
- case lang_afile_asection_pair_statement_enum:
- FAIL();
- break;
- case lang_address_statement_enum:
- /* Mark the specified section with the supplied address */
+ switch (output->sectype)
{
- lang_output_section_statement_type *os =
- lang_output_section_statement_lookup
- (s->address_statement.section_name);
- os->addr_tree = s->address_statement.address;
- if (os->bfd_section == (asection *)NULL) {
- einfo("%P%F can't set the address of undefined section %s\n",
- s->address_statement.section_name);
- }
+ case normal_section:
+ break;
+ case dsect_section:
+ case copy_section:
+ case info_section:
+ case overlay_section:
+ output->bfd_section->flags &= ~SEC_ALLOC;
+ break;
+ case noload_section:
+ output->bfd_section->flags &= ~SEC_LOAD;
+ output->bfd_section->flags |= SEC_NEVER_LOAD;
+ break;
}
- break;
- case lang_input_statement_enum:
- /* A standard input statement, has no wildcards */
- /* ldmain_open_file_read_symbol(&s->input_statement);*/
- break;
- }
+
+ 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 (output->section_alignment != -1)
+ output->bfd_section->alignment_power = output->section_alignment;
}
}
+/* Expand a wild statement for a particular FILE. SECTION may be
+ NULL, in which case it is a wild card. */
+
+static void
+wild_section (ptr, section, file, output)
+ lang_wild_statement_type *ptr;
+ const char *section;
+ lang_input_statement_type *file;
+ lang_output_section_statement_type *output;
+{
+ if (file->just_syms_flag == false)
+ {
+ register asection *s;
+ boolean wildcard;
+ if (section == NULL)
+ wildcard = false;
+ else
+ wildcard = wildcardp (section);
+ for (s = file->the_bfd->sections; s != NULL; s = s->next)
+ {
+ boolean match;
+ /* Attach all sections named SECTION. If SECTION is NULL,
+ then attach all sections.
-static void
-DEFUN(print_output_section_statement,(output_section_statement),
- lang_output_section_statement_type *output_section_statement)
-{
- asection *section = output_section_statement->bfd_section;
- print_nl();
- print_section(output_section_statement->name);
-
- if (section) {
- print_dot = section->vma;
- print_space();
- print_section("");
- print_space();
- print_address(section->vma);
- print_space();
- print_size(bfd_get_section_size_before_reloc(section));
- print_space();
- print_alignment(section->alignment_power);
- print_space();
-#if 0
- fprintf(config.map_file, "%s flags", output_section_statement->region->name);
- print_flags(stdout, &output_section_statement->flags);
-#endif
- if (section->flags & SEC_LOAD)
- fprintf(config.map_file, "load ");
- if (section->flags & SEC_ALLOC)
- fprintf(config.map_file, "alloc ");
- if (section->flags & SEC_RELOC)
- fprintf(config.map_file, "reloc ");
- if (section->flags & SEC_HAS_CONTENTS)
- fprintf(config.map_file, "contents ");
+ Previously, if SECTION was NULL, this code did not call
+ wild_doit if the SEC_IS_COMMON flag was set for the
+ section. I did not understand that, and I took it out.
+ --ian@cygnus.com. */
- }
- else {
- fprintf(config.map_file, "No attached output section");
- }
- print_nl();
- print_statement(output_section_statement->children.head,
- output_section_statement);
+ if (section == NULL)
+ match = true;
+ else
+ {
+ const char *name;
+ name = bfd_get_section_name (file->the_bfd, s);
+ if (wildcard)
+ match = fnmatch (section, name, 0) == 0 ? true : false;
+ else
+ match = strcmp (section, name) == 0 ? true : false;
+ }
+ if (match)
+ wild_doit (&ptr->children, s, output, file);
+ }
+ }
}
-static void
-DEFUN(print_assignment,(assignment, output_section),
- lang_assignment_statement_type *assignment AND
- lang_output_section_statement_type *output_section)
+/* This is passed a file name which must have been seen already and
+ added to the statement tree. We will see if it has been opened
+ already and had its symbols read. If not then we'll read it. */
+
+static lang_input_statement_type *
+lookup_name (name)
+ const char *name;
{
- etree_value_type result;
- print_section("");
- print_space();
- print_section("");
- print_space();
- print_address(print_dot);
- print_space();
- result = exp_fold_tree(assignment->exp->assign.src,
- output_section,
- lang_final_phase_enum,
- print_dot,
- &print_dot);
-
- if (result.valid) {
- print_address(result.value);
- }
- else
- {
- fprintf(config.map_file, "*undefined*");
- }
- print_space();
- exp_print_tree(assignment->exp);
- fprintf(config.map_file, "\n");
+ lang_input_statement_type *search;
+
+ for (search = (lang_input_statement_type *) input_file_chain.head;
+ search != (lang_input_statement_type *) NULL;
+ search = (lang_input_statement_type *) search->next_real_file)
+ {
+ if (search->filename == (char *) NULL && name == (char *) NULL)
+ return search;
+ if (search->filename != (char *) NULL
+ && name != (char *) NULL
+ && strcmp (search->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 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)
+ return search;
+
+ load_symbols (search, (lang_statement_list_type *) NULL);
+
+ return search;
}
+/* Get the symbols for an input file. */
+
static void
-DEFUN(print_input_statement,(statm),
- lang_input_statement_type *statm)
+load_symbols (entry, place)
+ lang_input_statement_type *entry;
+ lang_statement_list_type *place;
{
- if (statm->filename != (char *)NULL) {
- fprintf(config.map_file, "LOAD %s\n",statm->filename);
- }
-}
+ char **matching;
-static void
-DEFUN(print_symbol,(q),
- asymbol *q)
-{
- print_section("");
- fprintf(config.map_file, " ");
- print_section("");
- fprintf(config.map_file, " ");
- print_address(outside_symbol_address(q));
- fprintf(config.map_file, " %s", q->name ? q->name : " ");
- print_nl();
-}
+ if (entry->loaded)
+ return;
-static void
-DEFUN(print_input_section,(in),
- lang_input_section_type *in)
-{
- asection *i = in->section;
- int size = i->reloc_done ?
- bfd_get_section_size_after_reloc(i) :
- bfd_get_section_size_before_reloc(i);
-
+ ldfile_open_file (entry);
- if(size != 0) {
- print_section("");
- fprintf(config.map_file, " ");
- print_section(i->name);
- fprintf(config.map_file, " ");
- if (i->output_section) {
- print_address(i->output_section->vma + i->output_offset);
- fprintf(config.map_file, " ");
- print_size(size);
- fprintf(config.map_file, " ");
- print_alignment(i->alignment_power);
- fprintf(config.map_file, " ");
- if (in->ifile) {
-
- bfd *abfd = in->ifile->the_bfd;
- if (in->ifile->just_syms_flag == true) {
- fprintf(config.map_file, "symbols only ");
- }
+ if (! bfd_check_format (entry->the_bfd, bfd_archive)
+ && ! bfd_check_format_matches (entry->the_bfd, bfd_object, &matching))
+ {
+ bfd_error_type err;
+ lang_statement_list_type *hold;
- fprintf(config.map_file, " %s ",abfd->xvec->name);
- if(abfd->my_archive != (bfd *)NULL) {
- fprintf(config.map_file, "[%s]%s", abfd->my_archive->filename,
- abfd->filename);
- }
- else {
- fprintf(config.map_file, "%s", abfd->filename);
+ err = bfd_get_error ();
+ if (err == bfd_error_file_ambiguously_recognized)
+ {
+ char **p;
+
+ einfo ("%B: file not recognized: %E\n", entry->the_bfd);
+ einfo ("%B: matching formats:", entry->the_bfd);
+ for (p = matching; *p != NULL; p++)
+ einfo (" %s", *p);
+ einfo ("%F\n");
}
- fprintf(config.map_file, "(overhead %d bytes)", (int)bfd_alloc_size(abfd));
- print_nl();
+ else if (err != bfd_error_file_not_recognized
+ || place == NULL)
+ einfo ("%F%B: file not recognized: %E\n", entry->the_bfd);
- /* Find all the symbols in this file defined in this section */
- {
- asymbol **p;
- for (p = in->ifile->asymbols; *p; p++) {
- asymbol *q = *p;
-
- if (bfd_get_section(q) == i && q->flags & BSF_GLOBAL) {
- print_symbol(q);
- }
- }
- }
- }
- else {
- print_nl();
- }
+ bfd_close (entry->the_bfd);
+ entry->the_bfd = NULL;
+ /* See if the emulation has some special knowledge. */
- print_dot = outside_section_address(i) + size;
- }
- else {
- fprintf(config.map_file, "No output section allocated\n");
+ 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;
+
+ ldfile_assumed_script = true;
+ parser_input = input_script;
+ yyparse ();
+ ldfile_assumed_script = false;
+
+ stat_ptr = hold;
+
+ return;
}
- }
-}
-static void
-DEFUN(print_fill_statement,(fill),
- lang_fill_statement_type *fill)
-{
- fprintf(config.map_file, "FILL mask ");
- print_fill( fill->fill);
-}
+ /* We don't call ldlang_add_file for an archive. Instead, the
+ add_symbols entry point will call ldlang_add_file, via the
+ add_archive_element callback, for each element of the archive
+ which is used. */
+ switch (bfd_get_format (entry->the_bfd))
+ {
+ default:
+ break;
-static void
-DEFUN(print_data_statement,(data),
- lang_data_statement_type *data)
-{
-/* bfd_vma value; */
- print_section("");
- print_space();
- print_section("");
- print_space();
-/* ASSERT(print_dot == data->output_vma);*/
-
- print_address(data->output_vma + data->output_section->vma);
- print_space();
- print_address(data->value);
- print_space();
- switch (data->type) {
- case BYTE :
- fprintf(config.map_file, "BYTE ");
- print_dot += BYTE_SIZE;
- break;
- case SHORT:
- fprintf(config.map_file, "SHORT ");
- print_dot += SHORT_SIZE;
- break;
- case LONG:
- fprintf(config.map_file, "LONG ");
- print_dot += LONG_SIZE;
- break;
- }
+ case bfd_object:
+ ldlang_add_file (entry);
+ if (trace_files || trace_file_tries)
+ info_msg ("%I\n", entry);
+ break;
- exp_print_tree(data->exp);
-
- fprintf(config.map_file, "\n");
-}
+ case bfd_archive:
+ if (entry->whole_archive)
+ {
+ bfd *member = bfd_openr_next_archived_file (entry->the_bfd,
+ (bfd *) NULL);
+ while (member != NULL)
+ {
+ if (! bfd_check_format (member, bfd_object))
+ einfo ("%F%B: object %B in archive is not object\n",
+ entry->the_bfd, member);
+ 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);
+ }
+ entry->loaded = true;
-static void
-DEFUN(print_padding_statement,(s),
- lang_padding_statement_type *s)
-{
- print_section("");
- print_space();
- print_section("*fill*");
- print_space();
- print_address(s->output_offset + s->output_section->vma);
- print_space();
- print_size(s->size);
- print_space();
- print_fill(s->fill);
- print_nl();
+ return;
+ }
+ }
- print_dot = s->output_offset + s->output_section->vma + s->size;
+ if (! bfd_link_add_symbols (entry->the_bfd, &link_info))
+ einfo ("%F%B: could not read symbols: %E\n", entry->the_bfd);
+ entry->loaded = true;
}
-static void
-DEFUN(print_wild_statement,(w,os),
- lang_wild_statement_type *w AND
- lang_output_section_statement_type *os)
-{
- fprintf(config.map_file, " from ");
- if (w->filename != (char *)NULL) {
- fprintf(config.map_file, "%s",w->filename);
- }
- else {
- fprintf(config.map_file, "*");
- }
- if (w->section_name != (char *)NULL) {
- fprintf(config.map_file, "(%s)",w->section_name);
- }
- else {
- fprintf(config.map_file, "(*)");
- }
- print_nl();
- print_statement(w->children.head, os);
+/* Handle a wild statement for a single file F. */
-}
static void
-DEFUN(print_statement,(s, os),
- lang_statement_union_type *s AND
- lang_output_section_statement_type *os)
-{
- while (s)
+wild_file (s, section, f, output)
+ lang_wild_statement_type *s;
+ const char *section;
+ lang_input_statement_type *f;
+ lang_output_section_statement_type *output;
+{
+ if (f->the_bfd == NULL
+ || ! bfd_check_format (f->the_bfd, bfd_archive))
+ wild_section (s, section, f, output);
+ else
{
- switch (s->header.type)
+ 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);
+ while (member != NULL)
{
- case lang_constructors_statement_enum:
- fprintf(config.map_file, "constructors:\n");
- print_statement(constructor_list.head, os);
- break;
- case lang_wild_statement_enum:
- print_wild_statement(&s->wild_statement, os);
- break;
- default:
- fprintf(config.map_file, "Fail with %d\n",s->header.type);
- FAIL();
- break;
- case lang_address_statement_enum:
- fprintf(config.map_file, "address\n");
- break;
- break;
- case lang_object_symbols_statement_enum:
- fprintf(config.map_file, "object symbols\n");
- break;
- case lang_fill_statement_enum:
- print_fill_statement(&s->fill_statement);
- break;
- case lang_data_statement_enum:
- print_data_statement(&s->data_statement);
- break;
- case lang_input_section_enum:
- print_input_section(&s->input_section);
- break;
- case lang_padding_statement_enum:
- print_padding_statement(&s->padding_statement);
- break;
- case lang_output_section_statement_enum:
- print_output_section_statement(&s->output_section_statement);
- break;
- case lang_assignment_statement_enum:
- print_assignment(&s->assignment_statement,
- os);
- break;
- case lang_target_statement_enum:
- fprintf(config.map_file, "TARGET(%s)\n", s->target_statement.target);
- break;
- case lang_output_statement_enum:
- fprintf(config.map_file, "OUTPUT(%s %s)\n",
- s->output_statement.name,
- output_target);
- break;
- case lang_input_statement_enum:
- print_input_statement(&s->input_statement);
- break;
- case lang_afile_asection_pair_statement_enum:
- FAIL();
- break;
+ /* When lookup_name is called, it will call the add_symbols
+ entry point for the archive. For each element of the
+ archive which is included, BFD will call ldlang_add_file,
+ which will set the usrdata field of the member to the
+ lang_input_statement. */
+ if (member->usrdata != NULL)
+ {
+ wild_section (s, section,
+ (lang_input_statement_type *) member->usrdata,
+ output);
+ }
+
+ member = bfd_openr_next_archived_file (f->the_bfd, member);
}
- s = s->next;
}
}
+/* 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. */
static void
-DEFUN_VOID(print_statements)
+wild (s, section, file, target, output)
+ lang_wild_statement_type *s;
+ const char *section;
+ const char *file;
+ const char *target;
+ lang_output_section_statement_type *output;
{
- print_statement(statement_list.head,
- (lang_output_section_statement_type *)NULL);
-}
-
-static bfd_vma
-DEFUN(insert_pad,(this_ptr, fill, power, output_section_statement, dot),
- lang_statement_union_type **this_ptr AND
- fill_type fill AND
- unsigned int power AND
- asection * output_section_statement AND
- 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 int alignment_needed = align_power(dot, power) - dot;
+ lang_input_statement_type *f;
- if (alignment_needed != 0)
+ if (file == (char *) NULL)
{
- lang_statement_union_type *new =
- (lang_statement_union_type *)
- ldmalloc((bfd_size_type)(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;
+ /* Perform the iteration over all files in the list */
+ for (f = (lang_input_statement_type *) file_chain.head;
+ f != (lang_input_statement_type *) NULL;
+ f = (lang_input_statement_type *) f->next)
+ {
+ wild_file (s, section, f, output);
+ }
+ }
+ else if (wildcardp (file))
+ {
+ for (f = (lang_input_statement_type *) file_chain.head;
+ f != (lang_input_statement_type *) NULL;
+ f = (lang_input_statement_type *) f->next)
+ {
+ if (fnmatch (file, f->filename, FNM_FILE_NAME) == 0)
+ wild_file (s, section, f, output);
+ }
+ }
+ else
+ {
+ /* Perform the iteration over a single file */
+ f = lookup_name (file);
+ wild_file (s, section, f, output);
}
-
- /* Remember the most restrictive alignment */
- if (power > output_section_statement->alignment_power) {
- output_section_statement->alignment_power = power;
- }
- output_section_statement->_raw_size += alignment_needed;
- return alignment_needed + dot;
-
+ if (section != (char *) NULL
+ && strcmp (section, "COMMON") == 0
+ && default_common_section == NULL)
+ {
+ /* 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;
+ }
}
-/* Work out how much this section will move the dot point */
-static bfd_vma
-DEFUN(size_input_section, (this_ptr, output_section_statement, fill, dot),
- lang_statement_union_type **this_ptr AND
- lang_output_section_statement_type*output_section_statement AND
- unsigned short fill AND
- bfd_vma dot)
+/* Open the output file. */
+
+static bfd *
+open_output (name)
+ const char *name;
{
- lang_input_section_type *is = &((*this_ptr)->input_section);
- asection *i = is->section;
-
- if (is->ifile->just_syms_flag == false) {
- dot = insert_pad(this_ptr, fill, i->alignment_power,
- output_section_statement->bfd_section, dot);
+ bfd *output;
- /* remember the largest size so we can malloc the largest area
- needed for the output stage. Only remember the size of sections
- which we will actually allocate */
- if (((i->flags &
- (SEC_HAS_CONTENTS | SEC_LOAD)) == (SEC_HAS_CONTENTS | SEC_LOAD))
- && (bfd_get_section_size_before_reloc(i) > largest_section)) {
- largest_section = bfd_get_section_size_before_reloc(i);
+ if (output_target == (char *) NULL)
+ {
+ if (current_target != (char *) NULL)
+ output_target = current_target;
+ else
+ output_target = default_target;
}
+ output = bfd_openw (name, output_target);
- /* Remember where in the output section this input section goes */
-
- i->output_offset = dot - output_section_statement->bfd_section->vma;
-
- /* Mark how big the output section must be to contain this now */
- dot += bfd_get_section_size_before_reloc(i);
-output_section_statement->bfd_section->_raw_size =
- dot - output_section_statement->bfd_section->vma;
- }
- else
- {
- i->output_offset = i->vma - output_section_statement->bfd_section->vma;
- }
+ if (output == (bfd *) 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);
+ }
- return dot ;
-}
+ delete_output_file_on_failure = true;
-#if 0
-/* Work out the size of the output sections
- from the sizes of the input sections */
-static bfd_vma
-DEFUN(lang_size_sections,(s, output_section_statement, prev, fill,
- dot),
- lang_statement_union_type *s AND
- lang_output_section_statement_type * output_section_statement AND
- lang_statement_union_type **prev AND
- unsigned short fill AND
- bfd_vma dot)
+ /* output->flags |= D_PAGED;*/
-{
- /* Size up the sections from their constituent parts */
- for (; s != (lang_statement_union_type *)NULL ; s = s->next)
- {
- switch (s->header.type) {
+ if (! bfd_set_format (output, bfd_object))
+ einfo ("%P%F:%s: can not make object file: %E\n", name);
+ if (! bfd_set_arch_mach (output,
+ ldfile_output_architecture,
+ ldfile_output_machine))
+ einfo ("%P%F:%s: can not set architecture: %E\n", name);
-
- case lang_output_section_statement_enum:
- {
- bfd_vma after;
- lang_output_section_statement_type *os =
- &(s->output_section_statement);
- /* The start of a section */
-
- if (os->addr_tree == (etree_type *)NULL) {
- /* No address specified for this section, get one
- from the region specification
- */
- if (os->region == (lang_memory_region_type *)NULL) {
- os->region = lang_memory_region_lookup("*default*");
- }
- dot = os->region->current;
- }
- else {
- etree_value_type r ;
- r = exp_fold_tree(os->addr_tree,
- (lang_output_section_statement_type *)NULL,
- lang_allocating_phase_enum,
- dot, &dot);
- if (r.valid == false) {
- einfo("%F%S: non constant address expression for section %s\n",
- os->name);
- }
- dot = r.value;
- }
- /* The section starts here */
- /* First, align to what the section needs */
+ link_info.hash = bfd_link_hash_table_create (output);
+ if (link_info.hash == (struct bfd_link_hash_table *) NULL)
+ einfo ("%P%F: can not create link hash table: %E\n");
- dot = align_power(dot, os->bfd_section->alignment_power);
- os->bfd_section->vma = dot;
- os->bfd_section->output_offset = 0;
+ bfd_set_gp_size (output, g_switch_value);
+ return output;
+}
- (void) lang_size_sections(os->children.head, os, &os->children.head,
- os->fill, dot);
- /* Ignore the size of the input sections, use the vma and size to */
- /* align against */
- after = ALIGN(os->bfd_section->vma +
- os->bfd_section->size,
- os->block_value) ;
+static void
+ldlang_open_output (statement)
+ lang_statement_union_type * statement;
+{
+ switch (statement->header.type)
+ {
+ case lang_output_statement_enum:
+ ASSERT (output_bfd == (bfd *) NULL);
+ output_bfd = open_output (statement->output_statement.name);
+ ldemul_set_output_arch ();
+ if (config.magic_demand_paged && !link_info.relocateable)
+ output_bfd->flags |= D_PAGED;
+ else
+ output_bfd->flags &= ~D_PAGED;
+ if (config.text_read_only)
+ output_bfd->flags |= WP_TEXT;
+ else
+ output_bfd->flags &= ~WP_TEXT;
+ if (link_info.traditional_format)
+ output_bfd->flags |= BFD_TRADITIONAL_FORMAT;
+ else
+ output_bfd->flags &= ~BFD_TRADITIONAL_FORMAT;
+ break;
- os->bfd_section->size = after - os->bfd_section->vma;
- dot = os->bfd_section->vma + os->bfd_section->size;
- os->processed = true;
+ case lang_target_statement_enum:
+ current_target = statement->target_statement.target;
+ break;
+ default:
+ break;
+ }
+}
- /* Replace into region ? */
- if (os->addr_tree == (etree_type *)NULL
- && os->region !=(lang_memory_region_type*)NULL ) {
- os->region->current = dot;
- }
- }
+/* Open all the input files. */
- break;
+static void
+open_input_bfds (s, force)
+ lang_statement_union_type *s;
+ boolean force;
+{
+ for (; s != (lang_statement_union_type *) NULL; s = s->next)
+ {
+ switch (s->header.type)
+ {
case lang_constructors_statement_enum:
- dot = lang_size_sections(constructor_list.head,
- output_section_statement,
- &s->wild_statement.children.head,
- fill,
- dot);
- break;
-
- case lang_data_statement_enum:
- {
- unsigned int size = 0;
- s->data_statement.output_vma = dot - output_section_statement->bfd_section->vma;
- s->data_statement.output_section =
- output_section_statement->bfd_section;
-
- switch (s->data_statement.type) {
- case LONG:
- size = LONG_SIZE;
- break;
- case SHORT:
- size = SHORT_SIZE;
- break;
- case BYTE:
- size = BYTE_SIZE;
- break;
-
- }
- dot += size;
- output_section_statement->bfd_section->size += size;
- }
+ open_input_bfds (constructor_list.head, force);
+ break;
+ case lang_output_section_statement_enum:
+ open_input_bfds (s->output_section_statement.children.head, force);
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);
-
+ /* 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);
+ open_input_bfds (s->wild_statement.children.head, force);
break;
+ case lang_group_statement_enum:
+ {
+ struct bfd_link_hash_entry *undefs;
- case lang_object_symbols_statement_enum:
- create_object_symbols = output_section_statement;
+ /* We must continually search the entries in the group
+ until no new symbols are added to the list of undefined
+ symbols. */
+
+ do
+ {
+ undefs = link_info.hash->undefs_tail;
+ open_input_bfds (s->group_statement.children.head, true);
+ }
+ while (undefs != link_info.hash->undefs_tail);
+ }
break;
- case lang_output_statement_enum:
case lang_target_statement_enum:
- break;
- case lang_input_section_enum:
- dot = size_input_section(prev,
- output_section_statement,
- output_section_statement->fill, dot);
+ current_target = s->target_statement.target;
break;
case lang_input_statement_enum:
- break;
- case lang_fill_statement_enum:
- fill = s->fill_statement.fill;
- break;
- case lang_assignment_statement_enum:
+ if (s->input_statement.real == true)
{
- bfd_vma newdot = dot;
- exp_fold_tree(s->assignment_statement.exp,
- output_section_statement,
- lang_allocating_phase_enum,
- dot,
- &newdot);
-
- if (newdot != dot && )
- /* We've been moved ! so insert a pad */
- {
- lang_statement_union_type *new =
- (lang_statement_union_type *)
- ldmalloc((bfd_size_type)(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;
- output_section_statement->bfd_section->size +=
- new->padding_statement.size;
- dot = newdot;
- }
- }
+ lang_statement_list_type add;
- break;
- case lang_padding_statement_enum:
- FAIL();
+ s->input_statement.target = current_target;
+
+ /* If we are being called from within a group, and this
+ is an archive which has already been searched, then
+ force it to be researched. */
+ if (force
+ && s->input_statement.loaded
+ && bfd_check_format (s->input_statement.the_bfd,
+ bfd_archive))
+ s->input_statement.loaded = false;
+
+ lang_list_init (&add);
+
+ load_symbols (&s->input_statement, &add);
+
+ if (add.head != NULL)
+ {
+ *add.tail = s->next;
+ s->next = add.head;
+ }
+ }
break;
default:
- FAIL();
- break;
- case lang_address_statement_enum:
break;
}
- prev = &s->header.next;
- }
- return dot;
+ }
}
-#else
-/* Sizing happens in two passes, first pass we allocate worst case
- stuff. The second pass (if relaxing), we use what we learnt to
- change the size of some relocs from worst case to better
- */
-static boolean had_relax;
-static bfd_vma
-DEFUN(lang_size_sections,(s, output_section_statement, prev, fill,
- dot, relax),
- lang_statement_union_type *s AND
- lang_output_section_statement_type * output_section_statement AND
- lang_statement_union_type **prev AND
- unsigned short fill AND
- bfd_vma dot AND
- boolean relax)
+/* If there are [COMMONS] statements, put a wild one into the bss section */
+
+static void
+lang_reasonable_defaults ()
{
- /* Size up the sections from their constituent parts */
- for (; s != (lang_statement_union_type *)NULL ; s = s->next)
- {
- switch (s->header.type) {
-
- case lang_output_section_statement_enum:
- {
- bfd_vma after;
- lang_output_section_statement_type *os =
- &(s->output_section_statement);
- /* The start of a section */
-
- if (os->addr_tree == (etree_type *)NULL) {
- /* No address specified for this section, get one
- from the region specification
- */
- if (os->region == (lang_memory_region_type *)NULL) {
- os->region = lang_memory_region_lookup("*default*");
- }
- dot = os->region->current;
- }
- else {
- etree_value_type r ;
- r = exp_fold_tree(os->addr_tree,
- abs_output_section,
- lang_allocating_phase_enum,
- dot, &dot);
- if (r.valid == false) {
- einfo("%F%S: non constant address expression for section %s\n",
- os->name);
- }
- dot = r.value;
- }
- /* The section starts here */
- /* First, align to what the section needs */
+#if 0
+ lang_output_section_statement_lookup (".text");
+ lang_output_section_statement_lookup (".data");
- dot = align_power(dot, os->bfd_section->alignment_power);
- os->bfd_section->vma = dot;
- os->bfd_section->output_offset = 0;
+ default_common_section =
+ lang_output_section_statement_lookup (".bss");
- (void) lang_size_sections(os->children.head, os, &os->children.head,
- os->fill, dot, relax);
- /* Ignore the size of the input sections, use the vma and size to */
- /* align against */
+ if (placed_commons == false)
+ {
+ lang_wild_statement_type *new =
+ new_stat (lang_wild_statement,
+ &default_common_section->children);
- after = ALIGN(os->bfd_section->vma +
- os->bfd_section->_raw_size,
- os->block_value) ;
+ new->section_name = "COMMON";
+ new->filename = (char *) NULL;
+ lang_list_init (&new->children);
+ }
+#endif
+}
- os->bfd_section->_raw_size = after - os->bfd_section->vma;
- dot = os->bfd_section->vma + os->bfd_section->_raw_size;
- os->processed = true;
+/*
+ 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
+{
+ struct ldlang_undef_chain_list *next;
+ char *name;
+} ldlang_undef_chain_list_type;
- /* Replace into region ? */
- if (os->addr_tree == (etree_type *)NULL
- && os->region !=(lang_memory_region_type*)NULL ) {
- os->region->current = dot;
- /* Make sure this isn't silly */
- if (os->region->current >
- os->region->origin +
- os->region->length)
- {
- einfo("%X%P: Region %s is full (%B section %s)\n",
- os->region->name,
- os->bfd_section->owner,
- os->bfd_section->name);
- /* Reset the region pointer */
- os->region->current = 0;
- }
-
- }
- }
+static ldlang_undef_chain_list_type *ldlang_undef_chain_list_head;
- break;
- case lang_constructors_statement_enum:
- dot = lang_size_sections(constructor_list.head,
- output_section_statement,
- &s->wild_statement.children.head,
- fill,
- dot, relax);
- break;
-
- case lang_data_statement_enum:
- {
- unsigned int size = 0;
- s->data_statement.output_vma = dot - output_section_statement->bfd_section->vma;
- s->data_statement.output_section =
- output_section_statement->bfd_section;
-
- switch (s->data_statement.type) {
- case LONG:
- size = LONG_SIZE;
- break;
- case SHORT:
- size = SHORT_SIZE;
- break;
- case BYTE:
- size = BYTE_SIZE;
- break;
+void
+ldlang_add_undef (name)
+ CONST char *CONST name;
+{
+ ldlang_undef_chain_list_type *new =
+ ((ldlang_undef_chain_list_type *)
+ stat_alloc (sizeof (ldlang_undef_chain_list_type)));
- }
- dot += size;
- output_section_statement->bfd_section->_raw_size += size;
- }
- break;
+ new->next = ldlang_undef_chain_list_head;
+ ldlang_undef_chain_list_head = new;
- case lang_wild_statement_enum:
+ new->name = buystring (name);
+}
- dot = lang_size_sections(s->wild_statement.children.head,
- output_section_statement,
- &s->wild_statement.children.head,
+/* Run through the list of undefineds created above and place them
+ into the linker hash table as undefined symbols belonging to the
+ script file.
+*/
+static void
+lang_place_undefineds ()
+{
+ ldlang_undef_chain_list_type *ptr;
- fill, dot, relax);
+ for (ptr = ldlang_undef_chain_list_head;
+ ptr != (ldlang_undef_chain_list_type *) NULL;
+ ptr = ptr->next)
+ {
+ struct bfd_link_hash_entry *h;
- break;
+ 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");
+ 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);
+ }
+ }
+}
- case lang_object_symbols_statement_enum:
- create_object_symbols = output_section_statement;
- break;
- case lang_output_statement_enum:
- case lang_target_statement_enum:
- break;
- case lang_input_section_enum:
-if (relax)
+/* Open input files and attatch 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;
{
- relaxing = true;
-
+ for (; s != (lang_statement_union_type *) NULL; s = s->next)
+ {
+ switch (s->header.type)
+ {
-had_relax |= relax_section(prev);
- relaxing = false;
-
-}
- dot = size_input_section(prev,
- output_section_statement,
- output_section_statement->fill, dot);
+ case lang_wild_statement_enum:
+ wild (&s->wild_statement, s->wild_statement.section_name,
+ s->wild_statement.filename, target,
+ output_section_statement);
+
break;
- case lang_input_statement_enum:
+ case lang_constructors_statement_enum:
+ map_input_to_output_sections (constructor_list.head,
+ target,
+ output_section_statement);
+ break;
+ case lang_output_section_statement_enum:
+ map_input_to_output_sections (s->output_section_statement.children.head,
+ target,
+ &s->output_section_statement);
+ break;
+ case lang_output_statement_enum:
+ break;
+ case lang_target_statement_enum:
+ target = s->target_statement.target;
+ break;
+ case lang_group_statement_enum:
+ map_input_to_output_sections (s->group_statement.children.head,
+ target,
+ output_section_statement);
break;
case lang_fill_statement_enum:
- fill = s->fill_statement.fill;
+ 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:
+ if (output_section_statement != NULL
+ && output_section_statement->bfd_section == NULL)
+ init_os (output_section_statement);
break;
case lang_assignment_statement_enum:
- {
- bfd_vma newdot = dot;
- exp_fold_tree(s->assignment_statement.exp,
- output_section_statement,
- lang_allocating_phase_enum,
- dot,
- &newdot);
-
- if (newdot != dot && !relax)
- /* We've been moved ! so insert a pad */
- {
- lang_statement_union_type *new =
- (lang_statement_union_type *)
- ldmalloc((bfd_size_type)(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;
- output_section_statement->bfd_section->_raw_size +=
- new->padding_statement.size;
- dot = newdot;
- }
- }
+ if (output_section_statement != NULL
+ && output_section_statement->bfd_section == NULL)
+ init_os (output_section_statement);
+ /* Make sure that any sections mentioned in the assignment
+ are initialized. */
+ exp_init_os (s->assignment_statement.exp);
break;
- default:
- FAIL();
+ case lang_afile_asection_pair_statement_enum:
+ FAIL ();
break;
-/* This can only get here when relaxing is turned on */
- case lang_padding_statement_enum:
-
case lang_address_statement_enum:
+ /* Mark the specified section with the supplied address */
+ {
+ lang_output_section_statement_type *os =
+ lang_output_section_statement_lookup
+ (s->address_statement.section_name);
+
+ if (os->bfd_section == NULL)
+ init_os (os);
+ os->addr_tree = s->address_statement.address;
+ }
break;
}
- prev = &s->header.next;
- }
- return dot;
+ }
}
-#endif
-static bfd_vma
-DEFUN(lang_do_assignments,(s, output_section_statement, fill, dot),
- lang_statement_union_type *s AND
- lang_output_section_statement_type * output_section_statement AND
- unsigned short fill AND
- bfd_vma dot)
+static void
+print_output_section_statement (output_section_statement)
+ lang_output_section_statement_type * output_section_statement;
{
+ asection *section = output_section_statement->bfd_section;
+ int len;
- for (; s != (lang_statement_union_type *)NULL ; s = s->next)
+ if (output_section_statement != abs_output_section)
{
- switch (s->header.type) {
- case lang_constructors_statement_enum:
- dot = lang_do_assignments(constructor_list.head,
- output_section_statement,
- fill,
- dot);
- break;
+ minfo ("\n%s", output_section_statement->name);
- case lang_output_section_statement_enum:
+ if (section != NULL)
{
- lang_output_section_statement_type *os =
- &(s->output_section_statement);
- 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;
+ print_dot = section->vma;
+
+ len = strlen (output_section_statement->name);
+ if (len >= SECTION_NAME_MAP_LENGTH - 1)
+ {
+ print_nl ();
+ len = 0;
+ }
+ while (len < SECTION_NAME_MAP_LENGTH)
+ {
+ print_space ();
+ ++len;
+ }
+
+ minfo ("0x%V %W", section->vma, section->_raw_size);
+
+ if (output_section_statement->load_base != NULL)
+ {
+ bfd_vma addr;
+
+ addr = exp_get_abs_int (output_section_statement->load_base, 0,
+ "load base", lang_final_phase_enum);
+ minfo (" load address 0x%V", addr);
+ }
}
- break;
- case lang_wild_statement_enum:
- dot = lang_do_assignments(s->wild_statement.children.head,
- output_section_statement,
- fill, dot);
+ print_nl ();
+ }
- break;
+ print_statement_list (output_section_statement->children.head,
+ output_section_statement);
+}
- case lang_object_symbols_statement_enum:
- case lang_output_statement_enum:
- case lang_target_statement_enum:
-#if 0
- case lang_common_statement_enum:
+static void
+print_assignment (assignment, output_section)
+ lang_assignment_statement_type * assignment;
+ lang_output_section_statement_type * output_section;
+{
+ int i;
+ etree_value_type result;
+
+ for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++)
+ print_space ();
+
+ result = exp_fold_tree (assignment->exp->assign.src, output_section,
+ lang_final_phase_enum, print_dot, &print_dot);
+ if (result.valid)
+ minfo ("0x%V", result.value + result.section->bfd_section->vma);
+ else
+ {
+ minfo ("*undef* ");
+#ifdef BFD64
+ minfo (" ");
#endif
- break;
- case lang_data_statement_enum:
- {
- etree_value_type value ;
- value = exp_fold_tree(s->data_statement.exp,
- 0, lang_final_phase_enum, dot, &dot);
- s->data_statement.value = value.value;
- if (value.valid == false) einfo("%F%P: Invalid data statement\n");
- }
- switch (s->data_statement.type) {
- case LONG:
- dot += LONG_SIZE;
- break;
- case SHORT:
- dot += SHORT_SIZE;
- break;
- case BYTE:
- dot += BYTE_SIZE;
- break;
- }
- break;
- case lang_input_section_enum:
- {
- asection *in = s->input_section.section;
- dot += bfd_get_section_size_before_reloc(in);
- }
- break;
+ }
- case lang_input_statement_enum:
- break;
- case lang_fill_statement_enum:
- fill = s->fill_statement.fill;
- break;
- case lang_assignment_statement_enum:
- {
- exp_fold_tree(s->assignment_statement.exp,
- output_section_statement,
- lang_final_phase_enum,
- dot,
- &dot);
- }
+ minfo (" ");
- break;
- case lang_padding_statement_enum:
- dot += s->padding_statement.size;
- break;
- default:
- FAIL();
- break;
- case lang_address_statement_enum:
- break;
- }
+ exp_print_tree (assignment->exp);
+
+ print_nl ();
+}
+static void
+print_input_statement (statm)
+ lang_input_statement_type * statm;
+{
+ if (statm->filename != (char *) NULL)
+ {
+ fprintf (config.map_file, "LOAD %s\n", statm->filename);
}
- return dot;
}
+/* 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;
+{
+ asection *sec = (asection *) ptr;
-static void
-DEFUN_VOID(lang_relocate_globals)
-{
+ if ((hash_entry->type == bfd_link_hash_defined
+ || hash_entry->type == bfd_link_hash_defweak)
+ && sec == hash_entry->u.def.section)
+ {
+ int i;
- /*
- Each ldsym_type maintains a chain of pointers to asymbols which
- references the definition. Replace each pointer to the referenence
- with a pointer to only one place, preferably the definition. If
- the defintion isn't available then the common symbol, and if
- there isn't one of them then choose one reference.
- */
+ for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++)
+ print_space ();
+ minfo ("0x%V ",
+ (hash_entry->u.def.value
+ + hash_entry->u.def.section->output_offset
+ + hash_entry->u.def.section->output_section->vma));
- FOR_EACH_LDSYM(lgs) {
- asymbol *it;
- if (lgs->sdefs_chain) {
- it = *(lgs->sdefs_chain);
- }
- else if (lgs->scoms_chain != (asymbol **)NULL) {
- it = *(lgs->scoms_chain);
+ minfo (" %T\n", hash_entry->root.string);
}
- else if (lgs->srefs_chain != (asymbol **)NULL) {
- it = *(lgs->srefs_chain);
- }
- else {
- /* This can happen when the command line asked for a symbol to
- be -u */
- it = (asymbol *)NULL;
- }
- if (it != (asymbol *)NULL)
+
+ return true;
+}
+
+/* Print information about an input section to the map file. */
+
+static void
+print_input_section (in)
+ lang_input_section_type * in;
+{
+ asection *i = in->section;
+ bfd_size_type size = i->_cooked_size != 0 ? i->_cooked_size : i->_raw_size;
+
+ if (size != 0)
+ {
+ print_space ();
+
+ minfo ("%s", i->name);
+
+ if (i->output_section != NULL)
{
- asymbol **ptr = lgs->srefs_chain;;
- if (lgs->flags & SYM_WARNING)
- {
- produce_warnings(lgs, it);
- }
+ int len;
- while (ptr != (asymbol **)NULL) {
- asymbol *ref = *ptr;
- *ptr = it;
- ptr = (asymbol **)(ref->udata);
- }
+ len = 1 + strlen (i->name);
+ if (len >= SECTION_NAME_MAP_LENGTH - 1)
+ {
+ print_nl ();
+ len = 0;
+ }
+ while (len < SECTION_NAME_MAP_LENGTH)
+ {
+ print_space ();
+ ++len;
+ }
+
+ minfo ("0x%V %W %B\n",
+ i->output_section->vma + i->output_offset, size,
+ i->owner);
+
+ if (i->_cooked_size != 0 && i->_cooked_size != i->_raw_size)
+ {
+ len = SECTION_NAME_MAP_LENGTH + 3;
+#ifdef BFD64
+ len += 16;
+#else
+ len += 8;
+#endif
+ while (len > 0)
+ {
+ print_space ();
+ --len;
+ }
+
+ minfo ("%W (size before relaxing)\n", i->_raw_size);
+ }
+
+ bfd_link_hash_traverse (link_info.hash, print_one_symbol, (PTR) i);
+
+ print_dot = i->output_section->vma + i->output_offset + size;
}
- }
+ }
}
-
+static void
+print_fill_statement (fill)
+ lang_fill_statement_type * fill;
+{
+ fprintf (config.map_file, " FILL mask 0x%x\n", fill->fill);
+}
static void
-DEFUN_VOID(lang_finish)
+print_data_statement (data)
+ lang_data_statement_type * data;
{
- ldsym_type *lgs;
+ int i;
+ bfd_vma addr;
+ bfd_size_type size;
+ const char *name;
- if (entry_symbol == (char *)NULL) {
- /* No entry has been specified, look for start */
- entry_symbol = "start";
- }
- lgs = ldsym_get_soft(entry_symbol);
- if (lgs && lgs->sdefs_chain) {
- asymbol *sy = *(lgs->sdefs_chain);
- /* We can set the entry address*/
- bfd_set_start_address(output_bfd,
- outside_symbol_address(sy));
+ for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++)
+ print_space ();
- }
- else {
- /* Can't find anything reasonable,
- use the first address in the text section
- */
- asection *ts = bfd_get_section_by_name(output_bfd, ".text");
- if (ts) {
- bfd_set_start_address(output_bfd, ts->vma);
+ addr = data->output_vma;
+ if (data->output_section != NULL)
+ addr += data->output_section->vma;
+
+ switch (data->type)
+ {
+ default:
+ abort ();
+ case BYTE:
+ size = BYTE_SIZE;
+ name = "BYTE";
+ break;
+ case SHORT:
+ size = SHORT_SIZE;
+ name = "SHORT";
+ break;
+ case LONG:
+ size = LONG_SIZE;
+ name = "LONG";
+ break;
+ case QUAD:
+ size = QUAD_SIZE;
+ name = "QUAD";
+ break;
}
- }
+
+ minfo ("0x%V %W %s 0x%v", addr, size, name, data->value);
+
+ if (data->exp->type.node_class != etree_value)
+ {
+ print_space ();
+ exp_print_tree (data->exp);
+ }
+
+ print_nl ();
+
+ print_dot = addr + size;
}
-/* By now we know the target architecture, and we may have an */
-/* ldfile_output_machine_name */
+/* Print an address statement. These are generated by options like
+ -Ttext. */
+
static void
-DEFUN_VOID(lang_check)
+print_address_statement (address)
+ lang_address_statement_type *address;
{
- lang_statement_union_type *file;
+ minfo ("Address of section %s set to ", address->section_name);
+ exp_print_tree (address->address);
+ print_nl ();
+}
+
+/* Print a reloc statement. */
- bfd * input_bfd;
- unsigned long input_machine;
- enum bfd_architecture input_architecture;
+static void
+print_reloc_statement (reloc)
+ lang_reloc_statement_type *reloc;
+{
+ int i;
+ bfd_vma addr;
+ bfd_size_type size;
- CONST bfd_arch_info_type *compatible;
+ for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++)
+ print_space ();
- for (file = file_chain.head;
- file != (lang_statement_union_type *)NULL;
- file=file->input_statement.next)
- {
- unsigned long ldfile_new_output_machine = 0;
- enum bfd_architecture ldfile_new_output_architecture = bfd_arch_unknown;
+ addr = reloc->output_vma;
+ if (reloc->output_section != NULL)
+ addr += reloc->output_section->vma;
- input_bfd = file->input_statement.the_bfd;
+ size = bfd_get_reloc_size (reloc->howto);
- input_machine = bfd_get_mach(input_bfd);
- input_architecture = bfd_get_arch(input_bfd);
+ minfo ("0x%V %W RELOC %s ", addr, size, reloc->howto->name);
-
- /* Inspect the architecture and ensure we're linking like with
- like */
+ if (reloc->name != NULL)
+ minfo ("%s+", reloc->name);
+ else
+ minfo ("%s+", reloc->section->name);
- compatible=bfd_arch_get_compatible(input_bfd,
- output_bfd);
+ exp_print_tree (reloc->addend_exp);
- if (compatible)
- {
- ldfile_output_machine = compatible->mach;
- ldfile_output_architecture = compatible->arch;
- }
- else
- {
+ print_nl ();
- info("%P: warning, %s architecture of input file `%B' incompatible with %s output\n",
- bfd_printable_name(input_bfd), input_bfd,
- bfd_printable_name(output_bfd));
+ print_dot = addr + size;
+}
- bfd_set_arch_mach(output_bfd,
- ldfile_new_output_architecture,
- ldfile_new_output_machine);
- }
+static void
+print_padding_statement (s)
+ lang_padding_statement_type *s;
+{
+ int len;
+ bfd_vma addr;
- }
-}
+ minfo (" *fill*");
+ len = sizeof " *fill*" - 1;
+ while (len < SECTION_NAME_MAP_LENGTH)
+ {
+ print_space ();
+ ++len;
+ }
-/*
- * run through all the global common symbols and tie them
- * to the output section requested.
- *
- As an experiment we do this 4 times, once for all the byte sizes,
- then all the two bytes, all the four bytes and then everything else
- */
+ addr = s->output_offset;
+ if (s->output_section != NULL)
+ addr += s->output_section->vma;
+ minfo ("0x%V %W", addr, s->size);
+
+ if (s->fill != 0)
+ minfo (" %u", s->fill);
+
+ print_nl ();
+
+ print_dot = addr + s->size;
+}
static void
-DEFUN_VOID(lang_common)
-{
- ldsym_type *lgs;
- size_t power;
- if (config.relocateable_output == false ||
- command_line.force_common_definition== true) {
- for (power = 1; (config.sort_common == true && power == 1) || (power <= 16); power <<=1) {
- for (lgs = symbol_head;
- lgs != (ldsym_type *)NULL;
- lgs=lgs->next)
- {
- asymbol *com ;
- unsigned int power_of_two;
- size_t size;
- size_t align;
- if (lgs->scoms_chain != (asymbol **)NULL) {
- com = *(lgs->scoms_chain);
- size = com->value;
- switch (size) {
- case 0:
- case 1:
- align = 1;
- power_of_two = 0;
- break;
- case 2:
- power_of_two = 1;
- align = 2;
- break;
- case 3:
- case 4:
- power_of_two =2;
- align = 4;
- break;
- case 5:
- case 6:
- case 7:
- case 8:
- power_of_two = 3;
- align = 8;
- break;
- default:
- power_of_two = 4;
- align = 16;
- break;
- }
- if (config.sort_common == false || align == power) {
- /* Change from a common symbol into a definition of
- a symbol */
- lgs->sdefs_chain = lgs->scoms_chain;
- lgs->scoms_chain = (asymbol **)NULL;
- commons_pending--;
- /* Point to the correct common section */
- com->section =
- ((lang_input_statement_type *)
- (com->the_bfd->usrdata))->common_section;
- /* Fix the size of the common section */
-
- com->section->_raw_size =
- ALIGN(com->section->_raw_size, align);
-
- /* Remember if this is the biggest alignment ever seen */
- if (power_of_two > com->section->alignment_power) {
- com->section->alignment_power = power_of_two;
- }
+print_wild_statement (w, os)
+ lang_wild_statement_type * w;
+ lang_output_section_statement_type * os;
+{
+ print_space ();
- /* Symbol stops being common and starts being global, but
- we remember that it was common once. */
+ if (w->filename != NULL)
+ minfo ("%s", w->filename);
+ else
+ minfo ("*");
- com->flags = BSF_EXPORT | BSF_GLOBAL | BSF_OLD_COMMON;
- com->value = com->section->_raw_size;
+ if (w->section_name != NULL)
+ minfo ("(%s)", w->section_name);
+ else
+ minfo ("(*)");
- if (write_map)
- {
- fprintf (config.map_file, "Allocating common %s: %x at %x %s\n",
- lgs->name,
- (unsigned) size,
- (unsigned) com->value,
- com->the_bfd->filename);
- }
+ print_nl ();
- com->section->_raw_size += size;
+ print_statement_list (w->children.head, os);
+}
- }
- }
+/* Print a group statement. */
+
+static void
+print_group (s, os)
+ 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);
+ fprintf (config.map_file, "END GROUP\n");
+}
+
+/* Print the list of statements in S.
+ 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;
+{
+ while (s != NULL)
+ {
+ print_statement (s, os);
+ s = s->next;
+ }
+}
+
+/* Print the first statement in statement list S.
+ 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;
+{
+ switch (s->header.type)
+ {
+ default:
+ fprintf (config.map_file, "Fail with %d\n", s->header.type);
+ FAIL ();
+ break;
+ case lang_constructors_statement_enum:
+ if (constructor_list.head != NULL)
+ {
+ minfo (" CONSTRUCTORS\n");
+ print_statement_list (constructor_list.head, os);
+ }
+ break;
+ case lang_wild_statement_enum:
+ print_wild_statement (&s->wild_statement, os);
+ break;
+ case lang_address_statement_enum:
+ print_address_statement (&s->address_statement);
+ break;
+ case lang_object_symbols_statement_enum:
+ minfo (" CREATE_OBJECT_SYMBOLS\n");
+ break;
+ case lang_fill_statement_enum:
+ print_fill_statement (&s->fill_statement);
+ break;
+ case lang_data_statement_enum:
+ print_data_statement (&s->data_statement);
+ break;
+ case lang_reloc_statement_enum:
+ print_reloc_statement (&s->reloc_statement);
+ break;
+ case lang_input_section_enum:
+ print_input_section (&s->input_section);
+ break;
+ case lang_padding_statement_enum:
+ print_padding_statement (&s->padding_statement);
+ break;
+ case lang_output_section_statement_enum:
+ print_output_section_statement (&s->output_section_statement);
+ break;
+ case lang_assignment_statement_enum:
+ print_assignment (&s->assignment_statement, os);
+ break;
+ case lang_target_statement_enum:
+ fprintf (config.map_file, "TARGET(%s)\n", s->target_statement.target);
+ break;
+ case lang_output_statement_enum:
+ minfo ("OUTPUT(%s", s->output_statement.name);
+ if (output_target != NULL)
+ minfo (" %s", output_target);
+ minfo (")\n");
+ break;
+ case lang_input_statement_enum:
+ print_input_statement (&s->input_statement);
+ break;
+ case lang_group_statement_enum:
+ print_group (&s->group_statement, os);
+ break;
+ case lang_afile_asection_pair_statement_enum:
+ FAIL ();
+ break;
+ }
+}
+
+static void
+print_statements ()
+{
+ print_statement_list (statement_list.head, abs_output_section);
+}
+
+/* Print the first N statements in statement list S to STDERR.
+ If N == 0, nothing is printed.
+ If N < 0, the entire list is printed.
+ Intended to be called from GDB. */
+
+void
+dprint_statement (s, n)
+ lang_statement_union_type * s;
+ int n;
+{
+ FILE *map_save = config.map_file;
+
+ config.map_file = stderr;
+
+ if (n < 0)
+ print_statement_list (s, abs_output_section);
+ else
+ {
+ while (s && --n >= 0)
+ {
+ print_statement (s, abs_output_section);
+ s = s->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 int alignment_needed = align_power (dot, power) - dot;
+
+ if (alignment_needed != 0)
+ {
+ 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;
+ }
+
+
+ /* Remember the most restrictive alignment */
+ if (power > output_section_statement->alignment_power)
+ {
+ output_section_statement->alignment_power = power;
+ }
+ output_section_statement->_raw_size += alignment_needed;
+ return alignment_needed + dot;
+
+}
+
+/* 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;
+{
+ lang_input_section_type *is = &((*this_ptr)->input_section);
+ asection *i = is->section;
+
+ if (is->ifile->just_syms_flag == false)
+ {
+ if (output_section_statement->subsection_alignment != -1)
+ i->alignment_power =
+ output_section_statement->subsection_alignment;
+
+ dot = insert_pad (this_ptr, fill, i->alignment_power,
+ output_section_statement->bfd_section, dot);
+
+ /* Remember where in the output section this input section goes */
+
+ i->output_offset = dot - output_section_statement->bfd_section->vma;
+
+ /* Mark how big the output section must be to contain this now
+ */
+ if (i->_cooked_size != 0)
+ dot += i->_cooked_size;
+ else
+ dot += i->_raw_size;
+ output_section_statement->bfd_section->_raw_size = dot - output_section_statement->bfd_section->vma;
+ }
+ else
+ {
+ i->output_offset = i->vma - output_section_statement->bfd_section->vma;
+ }
+
+ return dot;
+}
+
+/* This variable indicates whether bfd_relax_section should be called
+ again. */
+
+static boolean relax_again;
+
+/* 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;
+{
+ /* Size up the sections from their constituent parts */
+ for (; s != (lang_statement_union_type *) NULL; s = s->next)
+ {
+ switch (s->header.type)
+ {
+
+ case lang_output_section_statement_enum:
+ {
+ bfd_vma after;
+ lang_output_section_statement_type *os = &s->output_section_statement;
+
+ if (os->bfd_section == NULL)
+ {
+ /* This section was never actually created. */
+ break;
+ }
+
+ /* If this is a COFF shared library section, use the size and
+ address from the input section. FIXME: This is COFF
+ specific; it would be cleaner if there were some other way
+ to do this, but nothing simple comes to mind. */
+ if ((os->bfd_section->flags & SEC_COFF_SHARED_LIBRARY) != 0)
+ {
+ asection *input;
+
+ if (os->children.head == NULL
+ || os->children.head->next != NULL
+ || os->children.head->header.type != lang_input_section_enum)
+ einfo ("%P%X: Internal error on COFF shared library section %s",
+ os->name);
+
+ input = os->children.head->input_section.section;
+ bfd_set_section_vma (os->bfd_section->owner,
+ os->bfd_section,
+ bfd_section_vma (input->owner, input));
+ os->bfd_section->_raw_size = input->_raw_size;
+ break;
+ }
+
+ if (bfd_is_abs_section (os->bfd_section))
+ {
+ /* No matter what happens, an abs section starts at zero */
+ ASSERT (os->bfd_section->vma == 0);
+ }
+ else
+ {
+ if (os->addr_tree == (etree_type *) NULL)
+ {
+ /* No address specified for this section, get one
+ from the region specification
+ */
+ if (os->region == (lang_memory_region_type *) NULL)
+ {
+ os->region = lang_memory_region_lookup ("*default*");
+ }
+ dot = os->region->current;
+ if (os->section_alignment == -1)
+ {
+ bfd_vma olddot;
+
+ olddot = dot;
+ 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",
+ os->name, (unsigned int) (dot - olddot));
+ }
+ }
+ else
+ {
+ etree_value_type r;
+
+ r = exp_fold_tree (os->addr_tree,
+ abs_output_section,
+ lang_allocating_phase_enum,
+ dot, &dot);
+ if (r.valid == false)
+ {
+ einfo ("%F%S: non constant address expression for section %s\n",
+ os->name);
+ }
+ dot = r.value + r.section->bfd_section->vma;
+ }
+ /* The section starts here */
+ /* First, align to what the section needs */
+
+ if (os->section_alignment != -1)
+ dot = align_power (dot, os->section_alignment);
+
+ bfd_set_section_vma (0, os->bfd_section, dot);
+
+ os->bfd_section->output_offset = 0;
+ }
+
+ (void) lang_size_sections (os->children.head, os, &os->children.head,
+ os->fill, dot, relax);
+ /* Ignore the size of the input sections, use the vma and size to */
+ /* align against */
+
+ after = ALIGN_N (os->bfd_section->vma +
+ os->bfd_section->_raw_size,
+ /* The coercion here is important, see ld.h. */
+ (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;
+ dot = os->bfd_section->vma + os->bfd_section->_raw_size;
+ os->processed = true;
+
+ /* Replace into region ? */
+ if (os->region != (lang_memory_region_type *) NULL)
+ {
+ os->region->current = dot;
+ /* Make sure this isn't silly. */
+ if (os->region->current < os->region->origin
+ || (os->region->current - os->region->origin
+ > os->region->length))
+ {
+ if (os->addr_tree != (etree_type *) NULL)
+ {
+ einfo ("%X%P: address 0x%v of %B section %s is not within region %s\n",
+ os->region->current,
+ os->bfd_section->owner,
+ os->bfd_section->name,
+ os->region->name);
+ }
+ else
+ {
+ einfo ("%X%P: region %s is full (%B section %s)\n",
+ os->region->name,
+ os->bfd_section->owner,
+ os->bfd_section->name);
+ }
+ /* Reset the region pointer. */
+ os->region->current = os->region->origin;
+ }
+ }
+ }
+ break;
+
+ case lang_constructors_statement_enum:
+ dot = lang_size_sections (constructor_list.head,
+ output_section_statement,
+ &s->wild_statement.children.head,
+ fill,
+ dot, relax);
+ break;
+
+ case lang_data_statement_enum:
+ {
+ unsigned int size = 0;
+
+ s->data_statement.output_vma = dot - output_section_statement->bfd_section->vma;
+ s->data_statement.output_section =
+ output_section_statement->bfd_section;
+
+ switch (s->data_statement.type)
+ {
+ case QUAD:
+ size = QUAD_SIZE;
+ break;
+ case LONG:
+ size = LONG_SIZE;
+ break;
+ case SHORT:
+ size = SHORT_SIZE;
+ break;
+ case BYTE:
+ size = BYTE_SIZE;
+ break;
+
+ }
+ dot += 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 */
+ output_section_statement->bfd_section->flags |= SEC_HAS_CONTENTS;
+ if (!(output_section_statement->flags & SEC_NEVER_LOAD)) {
+ output_section_statement->bfd_section->flags |= SEC_ALLOC | SEC_LOAD;
+ }
+ }
+ break;
+
+ case lang_reloc_statement_enum:
+ {
+ int size;
+
+ s->reloc_statement.output_vma =
+ dot - output_section_statement->bfd_section->vma;
+ s->reloc_statement.output_section =
+ output_section_statement->bfd_section;
+ size = bfd_get_reloc_size (s->reloc_statement.howto);
+ dot += 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);
+
+ break;
+
+ case lang_object_symbols_statement_enum:
+ link_info.create_object_symbols_section =
+ output_section_statement->bfd_section;
+ break;
+ case lang_output_statement_enum:
+ case lang_target_statement_enum:
+ break;
+ case lang_input_section_enum:
+ {
+ asection *i;
+
+ i = (*prev)->input_section.section;
+ if (! relax)
+ {
+ if (i->_cooked_size == 0)
+ i->_cooked_size = i->_raw_size;
+ }
+ else
+ {
+ 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;
+ }
+ dot = size_input_section (prev,
+ output_section_statement,
+ output_section_statement->fill,
+ dot, relax);
+ }
+ break;
+ case lang_input_statement_enum:
+ break;
+ case lang_fill_statement_enum:
+ s->fill_statement.output_section = output_section_statement->bfd_section;
+
+ fill = s->fill_statement.fill;
+ break;
+ case lang_assignment_statement_enum:
+ {
+ bfd_vma newdot = dot;
+
+ exp_fold_tree (s->assignment_statement.exp,
+ output_section_statement,
+ lang_allocating_phase_enum,
+ dot,
+ &newdot);
+
+ if (newdot != dot && !relax)
+ {
+ /* 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;
+ }
+ 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;
+ output_section_statement->bfd_section->_raw_size +=
+ new->padding_statement.size;
+ }
+
+ 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;
+ output_section_statement->bfd_section->_raw_size +=
+ s->padding_statement.size;
+ 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);
+ break;
+
+ default:
+ FAIL ();
+ break;
+
+ /* This can only get here when relaxing is turned on */
+
+ case lang_address_statement_enum:
+ break;
+ }
+ prev = &s->header.next;
+ }
+ return dot;
+}
+
+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;
+{
+ for (; s != (lang_statement_union_type *) NULL; s = s->next)
+ {
+ switch (s->header.type)
+ {
+ case lang_constructors_statement_enum:
+ dot = lang_do_assignments (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);
+
+ 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;
+ }
+ if (os->load_base)
+ {
+ /* If nothing has been placed into the output section then
+ it won't have a bfd_section. */
+ if (os->bfd_section)
+ {
+ os->bfd_section->lma
+ = exp_get_abs_int(os->load_base, 0,"load base", lang_final_phase_enum);
+ }
+ }
+ }
+ break;
+ case lang_wild_statement_enum:
+
+ dot = lang_do_assignments (s->wild_statement.children.head,
+ output_section_statement,
+ fill, dot);
+
+ break;
+
+ case lang_object_symbols_statement_enum:
+ case lang_output_statement_enum:
+ case lang_target_statement_enum:
+#if 0
+ case lang_common_statement_enum:
+#endif
+ break;
+ case lang_data_statement_enum:
+ {
+ etree_value_type value;
+
+ 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 == false)
+ einfo ("%F%P: invalid data statement\n");
+ }
+ switch (s->data_statement.type)
+ {
+ case QUAD:
+ dot += QUAD_SIZE;
+ break;
+ case LONG:
+ dot += LONG_SIZE;
+ break;
+ case SHORT:
+ dot += SHORT_SIZE;
+ break;
+ case BYTE:
+ dot += BYTE_SIZE;
+ break;
+ }
+ break;
+
+ case lang_reloc_statement_enum:
+ {
+ etree_value_type value;
+
+ value = exp_fold_tree (s->reloc_statement.addend_exp,
+ abs_output_section,
+ lang_final_phase_enum, dot, &dot);
+ s->reloc_statement.addend_value = value.value;
+ if (value.valid == false)
+ einfo ("%F%P: invalid reloc statement\n");
+ }
+ dot += 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;
+ else
+ dot += in->_raw_size;
+ }
+ break;
+
+ case lang_input_statement_enum:
+ break;
+ case lang_fill_statement_enum:
+ fill = s->fill_statement.fill;
+ break;
+ case lang_assignment_statement_enum:
+ {
+ exp_fold_tree (s->assignment_statement.exp,
+ output_section_statement,
+ lang_final_phase_enum,
+ dot,
+ &dot);
+ }
+
+ break;
+ case lang_padding_statement_enum:
+ dot += s->padding_statement.size;
+ break;
+
+ case lang_group_statement_enum:
+ dot = lang_do_assignments (s->group_statement.children.head,
+ output_section_statement,
+ fill, dot);
+
+ break;
+
+ default:
+ FAIL ();
+ break;
+ case lang_address_statement_enum:
+ break;
+ }
+
+ }
+ return 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
+ .sizeof. (section_name), it produces an undefined symbol
+ .sizeof.section_name. For all the output sections, we look for
+ such symbols, and set them to the correct value. */
+
+static void
+lang_set_startof ()
+{
+ asection *s;
+
+ if (link_info.relocateable)
+ return;
+
+ for (s = output_bfd->sections; s != NULL; s = s->next)
+ {
+ const char *secname;
+ char *buf;
+ struct bfd_link_hash_entry *h;
+
+ secname = bfd_get_section_name (output_bfd, s);
+ buf = xmalloc (10 + strlen (secname));
+
+ sprintf (buf, ".startof.%s", secname);
+ 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;
+ h->u.def.value = bfd_get_section_vma (output_bfd, s);
+ h->u.def.section = bfd_abs_section_ptr;
+ }
+
+ sprintf (buf, ".sizeof.%s", secname);
+ 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;
+ if (s->_cooked_size != 0)
+ h->u.def.value = s->_cooked_size;
+ else
+ h->u.def.value = s->_raw_size;
+ h->u.def.section = bfd_abs_section_ptr;
+ }
+
+ free (buf);
+ }
+}
+
+static void
+lang_finish ()
+{
+ struct bfd_link_hash_entry *h;
+ boolean warn;
+
+ if (link_info.relocateable || link_info.shared)
+ warn = false;
+ else
+ warn = true;
+
+ if (entry_symbol == (char *) NULL)
+ {
+ /* No entry has been specified. Look for start, but don't warn
+ if we don't find it. */
+ entry_symbol = "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->type == bfd_link_hash_defined
+ || h->type == bfd_link_hash_defweak)
+ && h->u.def.section->output_section != NULL)
+ {
+ bfd_vma val;
+
+ val = (h->u.def.value
+ + bfd_get_section_vma (output_bfd,
+ 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);
+ }
+ else
+ {
+ asection *ts;
+
+ /* Can't find the entry symbol. Use the first address in the
+ text section. */
+ ts = bfd_get_section_by_name (output_bfd, ".text");
+ if (ts != (asection *) NULL)
+ {
+ if (warn)
+ einfo ("%P: warning: cannot find entry symbol %s; defaulting to %V\n",
+ entry_symbol, bfd_get_section_vma (output_bfd, ts));
+ if (! bfd_set_start_address (output_bfd,
+ bfd_get_section_vma (output_bfd, ts)))
+ einfo ("%P%F: can't set start address\n");
+ }
+ else
+ {
+ if (warn)
+ einfo ("%P: warning: cannot find entry symbol %s; not setting start address\n",
+ entry_symbol);
+ }
+ }
+}
+
+/* Check that the architecture of all the input files is compatible
+ with the output file. Also call the backend to let it do any
+ other checking that is needed. */
+
+static void
+lang_check ()
+{
+ 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)
+ {
+ input_bfd = file->input_statement.the_bfd;
+ compatible = bfd_arch_get_compatible (input_bfd,
+ output_bfd);
+ if (compatible == NULL)
+ einfo ("%P: warning: %s architecture of input file `%B' is incompatible with %s output\n",
+ bfd_printable_name (input_bfd), input_bfd,
+ bfd_printable_name (output_bfd));
+
+ else
+ bfd_merge_private_bfd_data (input_bfd, output_bfd);
+ }
+}
+
+/* Look through all the global common symbols and attach them to the
+ correct section. The -sort-common command line switch may be used
+ to roughly sort the entries by size. */
+
+static void
+lang_common ()
+{
+ if (link_info.relocateable
+ && ! command_line.force_common_definition)
+ return;
+
+ if (! config.sort_common)
+ bfd_link_hash_traverse (link_info.hash, lang_one_common, (PTR) NULL);
+ else
+ {
+ int power;
+
+ for (power = 4; power >= 0; power--)
+ bfd_link_hash_traverse (link_info.hash, lang_one_common,
+ (PTR) &power);
+ }
+}
+
+/* Place one common symbol in the correct section. */
+
+static boolean
+lang_one_common (h, info)
+ struct bfd_link_hash_entry *h;
+ PTR info;
+{
+ unsigned int power_of_two;
+ bfd_vma size;
+ asection *section;
+
+ if (h->type != bfd_link_hash_common)
+ 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;
+
+ section = h->u.c.p->section;
+
+ /* Increase the size of the section. */
+ section->_raw_size = ALIGN_N (section->_raw_size,
+ (bfd_size_type) (1 << power_of_two));
+
+ /* Adjust the alignment if necessary. */
+ if (power_of_two > section->alignment_power)
+ section->alignment_power = power_of_two;
+
+ /* Change the symbol from common to defined. */
+ h->type = bfd_link_hash_defined;
+ h->u.def.section = section;
+ h->u.def.value = section->_raw_size;
+
+ /* Increase the size of the section. */
+ section->_raw_size += size;
+
+ /* Make sure the section is allocated in memory, and make sure that
+ it is no longer a common section. */
+ section->flags |= SEC_ALLOC;
+ section->flags &= ~ SEC_IS_COMMON;
+
+ if (config.map_file != NULL)
+ {
+ static boolean header_printed;
+ int len;
+ char *name;
+ char buf[50];
+
+ if (! header_printed)
+ {
+ minfo ("\nAllocating common symbols\n");
+ minfo ("Common symbol size file\n\n");
+ header_printed = true;
+ }
+
+ name = demangle (h->root.string);
+ minfo ("%s", name);
+ len = strlen (name);
+ free (name);
+
+ if (len >= 19)
+ {
+ print_nl ();
+ len = 0;
+ }
+ while (len < 20)
+ {
+ print_space ();
+ ++len;
+ }
+
+ minfo ("0x");
+ if (size <= 0xffffffff)
+ sprintf (buf, "%lx", (unsigned long) size);
+ else
+ sprintf_vma (buf, size);
+ minfo ("%s", buf);
+ len = strlen (buf);
+
+ while (len < 16)
+ {
+ print_space ();
+ ++len;
+ }
+
+ minfo ("%B\n", section->owner);
+ }
+
+ return true;
+}
+
+/*
+run through the input files and ensure that every input
+section has somewhere to go. If one is found without
+a destination then create an input request and place it
+into the statement tree.
+*/
+
+static void
+lang_place_orphans ()
+{
+ lang_input_statement_type *file;
+
+ for (file = (lang_input_statement_type *) file_chain.head;
+ file != (lang_input_statement_type *) NULL;
+ file = (lang_input_statement_type *) file->next)
+ {
+ asection *s;
+
+ for (s = file->the_bfd->sections;
+ s != (asection *) NULL;
+ s = s->next)
+ {
+ if (s->output_section == (asection *) NULL)
+ {
+ /* This section of the file is not attatched, 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;
+ }
+ 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
+ || command_line.force_common_definition)
+ {
+ if (default_common_section == NULL)
+ {
+#if 0
+ /* This message happens when using the
+ svr3.ifile linker script, so I have
+ disabled it. */
+ info_msg ("%P: no [COMMON] command, defaulting to .bss\n");
+#endif
+ default_common_section =
+ lang_output_section_statement_lookup (".bss");
+
+ }
+ wild_doit (&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);
+
+ wild_doit (&os->children, s, os, file);
+ }
+ }
+ }
+ }
+}
+
+
+void
+lang_set_flags (ptr, flags)
+ int *ptr;
+ CONST char *flags;
+{
+ boolean state = false;
+
+ *ptr = 0;
+ while (*flags)
+ {
+ if (*flags == '!')
+ {
+ state = false;
+ flags++;
+ }
+ else
+ state = true;
+ switch (*flags)
+ {
+ case 'R':
+ /* ptr->flag_read = state; */
+ break;
+ case 'W':
+ /* ptr->flag_write = state; */
+ break;
+ case 'X':
+ /* ptr->flag_executable= state;*/
+ break;
+ case 'L':
+ case 'I':
+ /* ptr->flag_loadable= state;*/
+ break;
+ default:
+ einfo ("%P%F: invalid syntax in flags\n");
+ break;
+ }
+ flags++;
+ }
+}
+
+/* Call a function on each input file. This function will be called
+ on an archive, but not on the elements. */
+
+void
+lang_for_each_input_file (func)
+ void (*func) PARAMS ((lang_input_statement_type *));
+{
+ lang_input_statement_type *f;
+
+ for (f = (lang_input_statement_type *) input_file_chain.head;
+ f != NULL;
+ f = (lang_input_statement_type *) f->next_real_file)
+ func (f);
+}
+
+/* Call a function on each file. The function will be called on all
+ the elements of an archive which are included in the link, but will
+ not be called on the archive file itself. */
+
+void
+lang_for_each_file (func)
+ void (*func) PARAMS ((lang_input_statement_type *));
+{
+ lang_input_statement_type *f;
+
+ for (f = (lang_input_statement_type *) file_chain.head;
+ f != (lang_input_statement_type *) NULL;
+ f = (lang_input_statement_type *) f->next)
+ {
+ func (f);
+ }
+}
+
+#if 0
+
+/* Not used. */
+
+void
+lang_for_each_input_section (func)
+ void (*func) PARAMS ((bfd * ab, asection * as));
+{
+ lang_input_statement_type *f;
+
+ for (f = (lang_input_statement_type *) file_chain.head;
+ f != (lang_input_statement_type *) NULL;
+ f = (lang_input_statement_type *) f->next)
+ {
+ 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;
+{
+ bfd **pp;
+
+ lang_statement_append (&file_chain,
+ (lang_statement_union_type *) entry,
+ &entry->next);
+
+ /* 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 != output_bfd);
+ for (pp = &link_info.input_bfds;
+ *pp != (bfd *) NULL;
+ pp = &(*pp)->link_next)
+ ;
+ *pp = entry->the_bfd;
+ entry->the_bfd->usrdata = (PTR) entry;
+ bfd_set_gp_size (entry->the_bfd, g_switch_value);
+
+ /* Look through the sections and check for any which should not be
+ included in the link. We need to do this now, so that we can
+ notice when the backend linker tries to report multiple
+ definition errors for symbols which are in sections we aren't
+ going to link. FIXME: It might be better to entirely ignore
+ symbols which are defined in sections which are going to be
+ discarded. This would require modifying the backend linker for
+ 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);
+}
+
+void
+lang_add_output (name, from_script)
+ CONST char *name;
+ int from_script;
+{
+ /* Make -o on command line override OUTPUT in script. */
+ if (had_output_filename == false || !from_script)
+ {
+ output_filename = name;
+ had_output_filename = true;
+ }
+}
+
+
+static lang_output_section_statement_type *current_section;
+
+static int
+topower (x)
+ int x;
+{
+ unsigned int i = 1;
+ int l;
+
+ if (x < 0)
+ return -1;
+
+ for (l = 0; l < 32; l++)
+ {
+ if (i >= (unsigned int) x)
+ return l;
+ i <<= 1;
+ }
+
+ return 0;
+}
+
+void
+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_output_section_statement_type *os;
+
+ current_section =
+ os =
+ lang_output_section_statement_lookup (output_section_statement_name);
+
+
+
+ /* Add this statement to tree */
+ /* add_statement(lang_output_section_statement_enum,
+ output_section_statement);*/
+ /* Make next things chain into subchain of this */
+
+ if (os->addr_tree ==
+ (etree_type *) NULL)
+ {
+ os->addr_tree =
+ address_exp;
+ }
+ os->sectype = sectype;
+ if (sectype != noload_section)
+ os->flags = SEC_NO_FLAGS;
+ else
+ os->flags = SEC_NEVER_LOAD;
+ os->block_value = block_value ? block_value : 1;
+ stat_ptr = &os->children;
+
+ os->subsection_alignment = topower(
+ exp_get_value_int(subalign, -1,
+ "subsection alignment",
+ 0));
+ os->section_alignment = topower(
+ exp_get_value_int(align, -1,
+ "section alignment", 0));
+
+ os->load_base = ebase;
+}
+
+
+void
+lang_final ()
+{
+ lang_output_statement_type *new =
+ new_stat (lang_output_statement, stat_ptr);
+
+ new->name = output_filename;
+}
+
+/* Reset the current counters in the regions */
+static void
+reset_memory_regions ()
+{
+ lang_memory_region_type *p = lang_memory_region_list;
+
+ for (p = lang_memory_region_list;
+ p != (lang_memory_region_type *) NULL;
+ p = p->next)
+ {
+ p->old_length = (bfd_size_type) (p->current - p->origin);
+ p->current = p->origin;
+ }
+}
+
+void
+lang_process ()
+{
+ lang_reasonable_defaults ();
+ current_target = default_target;
+
+ lang_for_each_statement (ldlang_open_output); /* Open the output file */
+
+ ldemul_create_output_section_statements ();
+
+ /* Add to the hash table all undefineds on the command line */
+ lang_place_undefineds ();
+
+ /* Create a bfd for each input file */
+ current_target = default_target;
+ open_input_bfds (statement_list.head, false);
+
+ ldemul_after_open ();
+
+ /* Build all sets based on the information gathered from the input
+ files. */
+ ldctor_build_sets ();
+
+ /* Size up the common data */
+ lang_common ();
+
+ /* Run through the contours of the script and attatch input sections
+ to the correct output sections
+ */
+ map_input_to_output_sections (statement_list.head, (char *) NULL,
+ (lang_output_section_statement_type *) NULL);
+
+
+ /* Find any sections not attatched explicitly and handle them */
+ lang_place_orphans ();
+
+ ldemul_before_allocation ();
+
+ /* We must record the program headers before we try to fix the
+ section positions, since they will affect SIZEOF_HEADERS. */
+ lang_record_phdrs ();
+
+ /* 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. */
+ do
+ {
+ reset_memory_regions ();
+
+ relax_again = false;
+
+ /* 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);
+
+ /* 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);
+ }
+ 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);
+ }
+
+ /* See if anything special should be done now we know how big
+ everything is. */
+ ldemul_after_allocation ();
+
+ /* Fix any .startof. or .sizeof. symbols. */
+ lang_set_startof ();
+
+ /* Do all the assignments, now that we know the final restingplaces
+ of all the symbols */
+
+ lang_do_assignments (statement_list.head,
+ abs_output_section,
+ (fill_type) 0, (bfd_vma) 0);
+
+ /* Make sure that we're not mixing architectures */
+
+ lang_check ();
+
+ /* Final stuffs */
+
+ ldemul_finish ();
+ lang_finish ();
+}
+
+/* EXPORTED TO YACC */
+
+void
+lang_add_wild (section_name, filename)
+ CONST char *CONST section_name;
+ CONST char *CONST filename;
+{
+ lang_wild_statement_type *new = new_stat (lang_wild_statement,
+ stat_ptr);
+
+ if (section_name != (char *) NULL && strcmp (section_name, "COMMON") == 0)
+ {
+ placed_commons = true;
+ }
+ if (filename != (char *) NULL)
+ {
+ lang_has_input_file = true;
+ }
+ new->section_name = section_name;
+ new->filename = filename;
+ lang_list_init (&new->children);
+}
+
+void
+lang_section_start (name, address)
+ CONST char *name;
+ etree_type * address;
+{
+ lang_address_statement_type *ad = new_stat (lang_address_statement, stat_ptr);
+
+ ad->section_name = name;
+ ad->address = address;
+}
+
+/* Set the start symbol to NAME. CMDLINE is nonzero if this is called
+ because of a -e argument on the command line, or zero if this is
+ called by ENTRY in a linker script. Command line arguments take
+ precedence. */
+
+/* WINDOWS_NT. When an entry point has been specified, we will also force
+ this symbol to be defined by calling ldlang_add_undef (equivalent to
+ having switch -u entry_name on the command line). The reason we do
+ this is so that the user doesn't have to because they would have to use
+ the -u switch if they were specifying an entry point other than
+ _mainCRTStartup. Specifically, if creating a windows application, entry
+ point _WinMainCRTStartup must be specified.
+ What I have found for non console applications (entry not _mainCRTStartup)
+ is that the .obj that contains mainCRTStartup is brought in since it is
+ the first encountered in libc.lib and it has other symbols in it which will
+ be pulled in by the link process. To avoid this, adding -u with the entry
+ point name specified forces the correct .obj to be used. We can avoid
+ making the user do this by always adding the entry point name as an
+ undefined symbol. */
+
+void
+lang_add_entry (name, cmdline)
+ CONST char *name;
+ boolean cmdline;
+{
+ if (entry_symbol == NULL
+ || cmdline
+ || ! entry_from_cmdline)
+ {
+ entry_symbol = name;
+ entry_from_cmdline = cmdline;
+ }
+#if 0
+ /* don't do this yet. It seems to work (the executables run), but the
+ image created is very different from what I was getting before indicating
+ that something else is being pulled in. When everything else is working,
+ then try to put this back in to see if it will do the right thing for
+ other more complicated applications */
+ ldlang_add_undef (name);
+#endif
+}
+
+void
+lang_add_target (name)
+ CONST char *name;
+{
+ lang_target_statement_type *new = new_stat (lang_target_statement,
+ stat_ptr);
+
+ new->target = name;
+
+}
+
+void
+lang_add_map (name)
+ CONST char *name;
+{
+ while (*name)
+ {
+ switch (*name)
+ {
+ case 'F':
+ map_option_f = true;
+ break;
+ }
+ name++;
+ }
+}
+
+void
+lang_add_fill (exp)
+ int exp;
+{
+ lang_fill_statement_type *new = new_stat (lang_fill_statement,
+ stat_ptr);
+
+ new->fill = exp;
+}
+
+void
+lang_add_data (type, exp)
+ int type;
+ union etree_union *exp;
+{
+
+ lang_data_statement_type *new = new_stat (lang_data_statement,
+ stat_ptr);
+
+ new->exp = exp;
+ new->type = type;
+
+}
+
+/* Create a new reloc statement. RELOC is the BFD relocation type to
+ generate. HOWTO is the corresponding howto structure (we could
+ look this up, but the caller has already done so). SECTION is the
+ section to generate a reloc against, or NAME is the name of the
+ symbol to generate a reloc against. Exactly one of SECTION and
+ 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_reloc_statement_type *p = new_stat (lang_reloc_statement, stat_ptr);
+
+ p->reloc = reloc;
+ p->howto = howto;
+ p->section = section;
+ p->name = name;
+ p->addend_exp = addend;
+
+ p->addend_value = 0;
+ p->output_section = NULL;
+ p->output_vma = 0;
+}
+
+void
+lang_add_assignment (exp)
+ etree_type * exp;
+{
+ lang_assignment_statement_type *new = new_stat (lang_assignment_statement,
+ stat_ptr);
+
+ new->exp = exp;
+}
+
+void
+lang_add_attribute (attribute)
+ enum statement_enum attribute;
+{
+ new_statement (attribute, sizeof (lang_statement_union_type), stat_ptr);
+}
- }
+void
+lang_startup (name)
+ CONST char *name;
+{
+ if (startup_file != (char *) NULL)
+ {
+ einfo ("%P%Fmultiple STARTUP files\n");
}
- }
+ first_file->filename = name;
+ first_file->local_sym_name = name;
+ first_file->real = true;
+ startup_file = name;
+}
+
+void
+lang_float (maybe)
+ boolean maybe;
+{
+ lang_float_flag = maybe;
+}
+void
+lang_leave_output_section_statement (fill, memspec, phdrs)
+ bfd_vma fill;
+ const char *memspec;
+ struct lang_output_section_phdr_list *phdrs;
+{
+ current_section->fill = fill;
+ current_section->region = lang_memory_region_lookup (memspec);
+ current_section->phdrs = phdrs;
+ stat_ptr = &statement_list;
}
/*
-run through the input files and ensure that every input
-section has somewhere to go. If one is found without
-a destination then create an input request and place it
-into the statement tree.
-*/
+ Create an absolute symbol with the given name with the value of the
+ address of first byte of the section named.
-static void
-DEFUN_VOID(lang_place_orphans)
+ If the symbol already exists, then do nothing.
+*/
+void
+lang_abs_symbol_at_beginning_of (secname, name)
+ const char *secname;
+ const char *name;
{
- lang_input_statement_type *file;
- for (file = (lang_input_statement_type*)file_chain.head;
- file != (lang_input_statement_type*)NULL;
- file = (lang_input_statement_type*)file->next) {
- asection *s;
- for (s = file->the_bfd->sections;
- s != (asection *)NULL;
- s = s->next) {
- if ( s->output_section == (asection *)NULL) {
- /* This section of the file is not attatched, root
- around for a sensible place for it to go */
-
- if (file->common_section == s) {
- /* This is a lonely common section which must
- have come from an archive. We attatch to the
- section with the wildcard */
- if (config.relocateable_output != true
- && command_line.force_common_definition == false) {
- if (default_common_section ==
- (lang_output_section_statement_type *)NULL) {
- info("%P: No [COMMON] command, defaulting to .bss\n");
-
- default_common_section =
- lang_output_section_statement_lookup(".bss");
+ struct bfd_link_hash_entry *h;
- }
- wild_doit(&default_common_section->children, s,
- default_common_section, file);
- }
- }
- else {
- lang_output_section_statement_type *os =
- lang_output_section_statement_lookup(s->name);
+ h = bfd_link_hash_lookup (link_info.hash, name, true, true, true);
+ if (h == (struct bfd_link_hash_entry *) NULL)
+ einfo ("%P%F: bfd_link_hash_lookup failed: %E\n");
- wild_doit(&os->children, s, os, file);
- }
- }
+ if (h->type == bfd_link_hash_new
+ || h->type == bfd_link_hash_undefined)
+ {
+ asection *sec;
+
+ h->type = bfd_link_hash_defined;
+
+ sec = bfd_get_section_by_name (output_bfd, secname);
+ if (sec == (asection *) NULL)
+ h->u.def.value = 0;
+ else
+ h->u.def.value = bfd_get_section_vma (output_bfd, sec);
+
+ h->u.def.section = bfd_abs_section_ptr;
}
- }
}
+/*
+ Create an absolute symbol with the given name with the value of the
+ address of the first byte after the end of the section named.
+ If the symbol already exists, then do nothing.
+*/
void
-DEFUN(lang_set_flags,(ptr, flags),
- int *ptr AND
- CONST char *flags)
+lang_abs_symbol_at_end_of (secname, name)
+ const char *secname;
+ const char *name;
{
- boolean state = true;
-*ptr= 0;
- while (*flags)
- {
- if (*flags == '!') {
- state = false;
- flags++;
- }
- else state = true;
- switch (*flags) {
- case 'R':
-/* ptr->flag_read = state; */
- break;
- case 'W':
-/* ptr->flag_write = state; */
- break;
- case 'X':
-/* ptr->flag_executable= state;*/
- break;
- case 'L':
- case 'I':
-/* ptr->flag_loadable= state;*/
- break;
- default:
- einfo("%P%F illegal syntax in flags\n");
- break;
- }
- flags++;
- }
-}
+ 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)
+ einfo ("%P%F: bfd_link_hash_lookup failed: %E\n");
+
+ if (h->type == bfd_link_hash_new
+ || h->type == bfd_link_hash_undefined)
+ {
+ asection *sec;
+
+ h->type = bfd_link_hash_defined;
+ sec = bfd_get_section_by_name (output_bfd, secname);
+ if (sec == (asection *) NULL)
+ h->u.def.value = 0;
+ else
+ h->u.def.value = (bfd_get_section_vma (output_bfd, sec)
+ + bfd_section_size (output_bfd, sec));
+ h->u.def.section = bfd_abs_section_ptr;
+ }
+}
void
-DEFUN(lang_for_each_file,(func),
- PROTO(void, (*func),(lang_input_statement_type *)))
+lang_statement_append (list, element, field)
+ lang_statement_list_type * list;
+ lang_statement_union_type * element;
+ lang_statement_union_type ** field;
{
- lang_input_statement_type *f;
- for (f = (lang_input_statement_type *)file_chain.head;
- f != (lang_input_statement_type *)NULL;
- f = (lang_input_statement_type *)f->next)
- {
- func(f);
- }
+ *(list->tail) = element;
+ list->tail = field;
}
+/* Set the output format type. -oformat overrides scripts. */
void
-DEFUN(lang_for_each_input_section, (func),
- PROTO(void ,(*func),(bfd *ab, asection*as)))
+lang_add_output_format (format, big, little, from_script)
+ const char *format;
+ const char *big;
+ const char *little;
+ int from_script;
{
- lang_input_statement_type *f;
- for (f = (lang_input_statement_type *)file_chain.head;
- f != (lang_input_statement_type *)NULL;
- f = (lang_input_statement_type *)f->next)
+ if (output_target == NULL || !from_script)
{
- asection *s;
- for (s = f->the_bfd->sections;
- s != (asection *)NULL;
- s = s->next) {
- func(f->the_bfd, s);
- }
+ if (command_line.endian == ENDIAN_BIG
+ && big != NULL)
+ format = big;
+ else if (command_line.endian == ENDIAN_LITTLE
+ && little != NULL)
+ format = little;
+
+ output_target = format;
}
}
+/* Enter a group. This creates a new lang_group_statement, and sets
+ stat_ptr to build new statements within the group. */
-
-void
-DEFUN(ldlang_add_file,(entry),
- lang_input_statement_type *entry)
+void
+lang_enter_group ()
{
+ lang_group_statement_type *g;
- lang_statement_append(&file_chain,
- (lang_statement_union_type *)entry,
- &entry->next);
+ g = new_stat (lang_group_statement, stat_ptr);
+ lang_list_init (&g->children);
+ stat_ptr = &g->children;
}
-
+/* Leave a group. This just resets stat_ptr to start writing to the
+ regular list of statements again. Note that this will not work if
+ groups can occur inside anything else which can adjust stat_ptr,
+ but currently they can't. */
void
-DEFUN(lang_add_output,(name),
- CONST char *name)
+lang_leave_group ()
{
- lang_output_statement_type *new = new_stat(lang_output_statement,
- stat_ptr);
- new->name = name;
- had_output_filename = true;
+ stat_ptr = &statement_list;
}
-
-static lang_output_section_statement_type *current_section;
+/* Add a new program header. This is called for each entry in a PHDRS
+ command in a linker script. */
void
-DEFUN(lang_enter_output_section_statement,
- (output_section_statement_name,
- address_exp,
- flags,
- block_value),
- char *output_section_statement_name AND
- etree_type *address_exp AND
- int flags AND
- bfd_vma block_value)
-{
- lang_output_section_statement_type *os;
- current_section =
- os =
- lang_output_section_statement_lookup(output_section_statement_name);
+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;
+{
+ struct lang_phdr *n, **pp;
+
+ n = (struct lang_phdr *) stat_alloc (sizeof (struct lang_phdr));
+ n->next = NULL;
+ n->name = name;
+ n->type = exp_get_value_int (type, 0, "program header type",
+ lang_final_phase_enum);
+ n->filehdr = filehdr;
+ n->phdrs = phdrs;
+ n->at = at;
+ n->flags = flags;
+
+ for (pp = &lang_phdr_list; *pp != NULL; pp = &(*pp)->next)
+ ;
+ *pp = n;
+}
+
+/* Record the program header information in the output BFD. FIXME: We
+ should not be calling an ELF specific function here. */
-
-
- /* Add this statement to tree */
- /* add_statement(lang_output_section_statement_enum,
- output_section_statement);*/
- /* Make next things chain into subchain of this */
+static void
+lang_record_phdrs ()
+{
+ unsigned int alc;
+ asection **secs;
+ struct lang_output_section_phdr_list *last;
+ struct lang_phdr *l;
+ lang_statement_union_type *u;
- if (os->addr_tree ==
- (etree_type *)NULL) {
- os->addr_tree =
- address_exp;
- }
- os->flags = flags;
- os->block_value = block_value;
- stat_ptr = & os->children;
+ alc = 10;
+ secs = (asection **) xmalloc (alc * sizeof (asection *));
+ last = NULL;
+ for (l = lang_phdr_list; l != NULL; l = l->next)
+ {
+ unsigned int c;
+ flagword flags;
+ bfd_vma at;
+
+ c = 0;
+ for (u = lang_output_section_statement.head;
+ u != NULL;
+ u = u->output_section_statement.next)
+ {
+ lang_output_section_statement_type *os;
+ struct lang_output_section_phdr_list *pl;
-}
+ os = &u->output_section_statement;
+ pl = os->phdrs;
+ if (pl != NULL)
+ last = pl;
+ else
+ {
+ if (os->sectype == noload_section
+ || os->bfd_section == NULL
+ || (os->bfd_section->flags & SEC_ALLOC) == 0)
+ continue;
+ pl = last;
+ }
-void
-DEFUN_VOID(lang_final)
-{
- if (had_output_filename == false) {
- extern CONST char *output_filename;
- lang_add_output(output_filename);
- }
-}
+ if (os->bfd_section == NULL)
+ continue;
+ for (; pl != NULL; pl = pl->next)
+ {
+ if (strcmp (pl->name, l->name) == 0)
+ {
+ if (c >= alc)
+ {
+ alc *= 2;
+ secs = ((asection **)
+ xrealloc (secs, alc * sizeof (asection *)));
+ }
+ secs[c] = os->bfd_section;
+ ++c;
+ pl->used = true;
+ }
+ }
+ }
+ if (l->flags == NULL)
+ flags = 0;
+ else
+ flags = exp_get_vma (l->flags, 0, "phdr flags",
+ lang_final_phase_enum);
+
+ if (l->at == NULL)
+ at = 0;
+ else
+ at = exp_get_vma (l->at, 0, "phdr load address",
+ lang_final_phase_enum);
+
+ if (! bfd_record_phdr (output_bfd, l->type,
+ l->flags == NULL ? false : true,
+ flags,
+ l->at == NULL ? false : true,
+ at, l->filehdr, l->phdrs, c, secs))
+ einfo ("%F%P: bfd_record_phdr failed: %E\n");
+ }
-/* Reset the current counters in the regions */
-static void
- DEFUN_VOID(reset_memory_regions)
-{
- lang_memory_region_type *p = lang_memory_region_list;
- for (p = lang_memory_region_list;
- p != ( lang_memory_region_type *)NULL;
- p = p->next)
- {
- p->current = p->origin;
- }
-}
+ free (secs);
+ /* Make sure all the phdr assignments succeeded. */
+ for (u = lang_output_section_statement.head;
+ u != NULL;
+ u = u->output_section_statement.next)
+ {
+ struct lang_output_section_phdr_list *pl;
-asymbol *
-DEFUN(create_symbol,(name, flags, section),
- CONST char *name AND
- flagword flags AND
- asection *section)
-{
- extern lang_input_statement_type *script_file;
- asymbol **def_ptr = (asymbol **)ldmalloc((bfd_size_type)(sizeof(asymbol **)));
- /* Add this definition to script file */
- asymbol *def = (asymbol *)bfd_make_empty_symbol(script_file->the_bfd);
- def->name = buystring(name);
- def->udata = 0;
- def->flags = flags;
- def->section = section;
+ if (u->output_section_statement.bfd_section == NULL)
+ continue;
- *def_ptr = def;
- Q_enter_global_ref(def_ptr);
- return def;
+ for (pl = u->output_section_statement.phdrs;
+ pl != NULL;
+ pl = pl->next)
+ if (! pl->used && strcmp (pl->name, "NONE") != 0)
+ einfo ("%X%P: section `%s' assigned to non-existent phdr `%s'\n",
+ u->output_section_statement.name, pl->name);
+ }
}
-
+/* Record a list of sections which may not be cross referenced. */
void
-DEFUN_VOID(lang_process)
-{
- if (had_script == false) {
- parse_line(ldemul_get_script());
- }
- lang_reasonable_defaults();
- current_target = default_target;
+lang_add_nocrossref (l)
+ struct lang_nocrossref *l;
+{
+ struct lang_nocrossrefs *n;
- lang_for_each_statement(ldlang_open_output); /* Open the output file */
- /* For each output section statement, create a section in the output
- file */
- lang_create_output_section_statements();
+ n = (struct lang_nocrossrefs *) xmalloc (sizeof *n);
+ n->next = nocrossref_list;
+ n->list = l;
+ nocrossref_list = n;
- /* Create a dummy bfd for the script */
- lang_init_script_file();
+ /* Set notice_all so that we get informed about all symbols. */
+ link_info.notice_all = true;
+}
+\f
+/* Overlay handling. We handle overlays with some static variables. */
- /* Add to the hash table all undefineds on the command line */
- lang_place_undefineds();
+/* The overlay virtual address. */
+static etree_type *overlay_vma;
- /* Create a bfd for each input file */
- current_target = default_target;
- lang_for_each_statement(open_input_bfds);
+/* The overlay load address. */
+static etree_type *overlay_lma;
- common_section.userdata = (PTR)&common_section_userdata;
+/* Whether nocrossrefs is set for this overlay. */
+static int overlay_nocrossrefs;
+/* An expression for the maximum section size seen so far. */
+static etree_type *overlay_max;
- /* Run through the contours of the script and attatch input sections
- to the correct output sections
- */
- find_constructors();
- map_input_to_output_sections(statement_list.head, (char *)NULL,
- ( lang_output_section_statement_type *)NULL);
+/* A list of all the sections in this overlay. */
+struct overlay_list
+{
+ struct overlay_list *next;
+ lang_output_section_statement_type *os;
+};
- /* Find any sections not attatched explicitly and handle them */
- lang_place_orphans();
+static struct overlay_list *overlay_list;
- /* Size up the common data */
- lang_common();
+/* Start handling an overlay. */
- ldemul_before_allocation();
+void
+lang_enter_overlay (vma_expr, lma_expr, nocrossrefs)
+ etree_type *vma_expr;
+ etree_type *lma_expr;
+ int nocrossrefs;
+{
+ /* The grammar should prevent nested overlays from occurring. */
+ ASSERT (overlay_vma == NULL
+ && overlay_lma == NULL
+ && overlay_list == NULL
+ && overlay_max == NULL);
+ overlay_vma = vma_expr;
+ overlay_lma = lma_expr;
+ overlay_nocrossrefs = nocrossrefs;
+}
- /* Size up the sections */
- lang_size_sections(statement_list.head,
- abs_output_section,
- &(statement_list.head), 0, (bfd_vma)0, false);
+/* Start a section in an overlay. We handle this by calling
+ lang_enter_output_section_statement with the correct VMA and LMA. */
+void
+lang_enter_overlay_section (name)
+ const char *name;
+{
+ struct overlay_list *n;
+ etree_type *size;
- /* Now run around and relax if we can */
- if (command_line.relax)
- {
- reset_memory_regions();
-
- /* Move the global symbols around */
- lang_relocate_globals();
-
- had_relax = true;
- while (had_relax)
- {
-
- had_relax = false;
-
- lang_size_sections(statement_list.head,
- (lang_output_section_statement_type *)NULL,
- &(statement_list.head), 0, (bfd_vma)0, true);
- /* FIXME. Until the code in relax is fixed so that it only reads in
- stuff once, we cant iterate since there is no way for the linker to
- know what has been patched and what hasn't */
- break;
-
- }
-
-
+ lang_enter_output_section_statement (name, overlay_vma, normal_section,
+ 0, 0, 0, overlay_lma);
+ /* If this is the first section, then base the VMA and LMA 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);
+ }
- }
-
+ /* Remember the section. */
+ n = (struct overlay_list *) xmalloc (sizeof *n);
+ n->os = current_section;
+ n->next = overlay_list;
+ overlay_list = n;
- /* See if anything special should be done now we know how big
- everything is */
- ldemul_after_allocation();
+ size = exp_nameop (SIZEOF, name);
- /* Do all the assignments, now that we know the final restingplaces
- of all the symbols */
+ /* Adjust the LMA for the next section. */
+ overlay_lma = exp_binop ('+', overlay_lma, size);
- lang_do_assignments(statement_list.head,
- abs_output_section,
- 0, (bfd_vma)0);
+ /* Arrange to work out the maximum section end address. */
+ if (overlay_max == NULL)
+ overlay_max = size;
+ else
+ overlay_max = exp_binop (MAX, overlay_max, size);
+}
+/* Finish a section in an overlay. There isn't any special to do
+ here. */
- /* Move the global symbols around */
- lang_relocate_globals();
+void
+lang_leave_overlay_section (fill, phdrs)
+ bfd_vma fill;
+ struct lang_output_section_phdr_list *phdrs;
+{
+ const char *name;
+ char *clean, *s2;
+ const char *s1;
+ char *buf;
- /* Make sure that we're not mixing architectures */
+ name = current_section->name;
- lang_check();
+ lang_leave_output_section_statement (fill, "*default*", phdrs);
- /* Final stuffs */
- lang_finish();
-}
+ /* Define the magic symbols. */
+ clean = xmalloc (strlen (name) + 1);
+ s2 = clean;
+ for (s1 = name; *s1 != '\0'; s1++)
+ if (isalnum (*s1) || *s1 == '_')
+ *s2++ = *s1;
+ *s2 = '\0';
-/* EXPORTED TO YACC */
+ buf = xmalloc (strlen (clean) + sizeof "__load_start_");
+ sprintf (buf, "__load_start_%s", clean);
+ lang_add_assignment (exp_assop ('=', buf,
+ exp_nameop (LOADADDR, name)));
-void
-DEFUN(lang_add_wild,(section_name, filename),
- CONST char *CONST section_name AND
- CONST char *CONST filename)
-{
- lang_wild_statement_type *new = new_stat(lang_wild_statement,
- stat_ptr);
+ buf = xmalloc (strlen (clean) + sizeof "__load_stop_");
+ sprintf (buf, "__load_stop_%s", clean);
+ lang_add_assignment (exp_assop ('=', buf,
+ exp_binop ('+',
+ exp_nameop (LOADADDR, name),
+ exp_nameop (SIZEOF, name))));
- if (section_name != (char *)NULL && strcmp(section_name,"COMMON") == 0)
- {
- placed_commons = true;
- }
- if (filename != (char *)NULL) {
- lang_has_input_file = true;
- }
- new->section_name = section_name;
- new->filename = filename;
- lang_list_init(&new->children);
-}
-void
-DEFUN(lang_section_start,(name, address),
- CONST char *name AND
- etree_type *address)
-{
- lang_address_statement_type *ad =new_stat(lang_address_statement, stat_ptr);
- ad->section_name = name;
- ad->address = address;
+ free (clean);
}
-void
-DEFUN(lang_add_entry,(name),
- CONST char *name)
-{
- entry_symbol = name;
-}
+/* Finish an overlay. If there are any overlay wide settings, this
+ looks through all the sections in the overlay and sets them. */
void
-DEFUN(lang_add_target,(name),
- CONST char *name)
+lang_leave_overlay (fill, memspec, phdrs)
+ bfd_vma fill;
+ const char *memspec;
+ struct lang_output_section_phdr_list *phdrs;
{
- lang_target_statement_type *new = new_stat(lang_target_statement,
- stat_ptr);
- new->target = name;
+ lang_memory_region_type *region;
+ struct overlay_list *l;
+ struct lang_nocrossref *nocrossref;
-}
+ if (memspec == NULL)
+ region = NULL;
+ else
+ region = lang_memory_region_lookup (memspec);
+ nocrossref = NULL;
+ l = overlay_list;
+ while (l != NULL)
+ {
+ struct overlay_list *next;
+ if (fill != 0 && l->os->fill == 0)
+ l->os->fill = fill;
+ if (region != NULL && l->os->region == NULL)
+ l->os->region = region;
+ if (phdrs != NULL && l->os->phdrs == NULL)
+ l->os->phdrs = phdrs;
-void
-DEFUN(lang_add_map,(name),
- CONST char *name)
-{
- while (*name) {
- switch (*name) {
- case 'F':
- map_option_f = true;
- break;
- }
- name++;
- }
-}
+ if (overlay_nocrossrefs)
+ {
+ struct lang_nocrossref *nc;
-void
-DEFUN(lang_add_fill,(exp),
- int exp)
-{
- lang_fill_statement_type *new = new_stat(lang_fill_statement,
- stat_ptr);
- new->fill = exp;
-}
+ nc = (struct lang_nocrossref *) xmalloc (sizeof *nc);
+ nc->name = l->os->name;
+ nc->next = nocrossref;
+ nocrossref = nc;
+ }
-void
-DEFUN(lang_add_data,(type, exp),
- int type AND
- union etree_union *exp)
-{
+ next = l->next;
+ free (l);
+ l = next;
+ }
- lang_data_statement_type *new = new_stat(lang_data_statement,
- stat_ptr);
- new->exp = exp;
- new->type = type;
+ if (nocrossref != NULL)
+ lang_add_nocrossref (nocrossref);
-}
-void
-DEFUN(lang_add_assignment,(exp),
- etree_type *exp)
-{
- lang_assignment_statement_type *new = new_stat(lang_assignment_statement,
- stat_ptr);
- new->exp = exp;
-}
+ /* Update . for the end of the overlay. */
+ lang_add_assignment (exp_assop ('=', ".",
+ exp_binop ('+', overlay_vma, overlay_max)));
-void
-DEFUN(lang_add_attribute,(attribute),
- enum statement_enum attribute)
-{
- new_statement(attribute, sizeof(lang_statement_union_type),stat_ptr);
+ overlay_vma = NULL;
+ overlay_lma = NULL;
+ overlay_nocrossrefs = 0;
+ overlay_list = NULL;
+ overlay_max = NULL;
}
+\f
+/* Version handling. This is only useful for ELF. */
+/* This global variable holds the version tree that we build. */
+struct bfd_elf_version_tree *lang_elf_version_info;
-void
-DEFUN(lang_startup,(name),
- CONST char *name)
+/* This is called for each variable name or match expression. */
+
+struct bfd_elf_version_expr *
+lang_new_vers_regex (orig, new)
+ struct bfd_elf_version_expr *orig;
+ const char *new;
{
- if (startup_file != (char *)NULL) {
- einfo("%P%FMultiple STARTUP files\n");
- }
- first_file->filename = name;
- first_file->local_sym_name = name;
+ struct bfd_elf_version_expr *ret;
- startup_file= name;
+ ret = (struct bfd_elf_version_expr *) xmalloc (sizeof *ret);
+ ret->next = orig;
+ ret->match = new;
+ return ret;
}
-void
-DEFUN(lang_float,(maybe),
- boolean maybe)
+
+/* 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_float_flag = maybe;
+ 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->name_indx = (unsigned int) -1;
+ ret->used = 0;
+ return ret;
}
-void
-DEFUN(lang_leave_output_section_statement,(fill, memspec),
- bfd_vma fill AND
- CONST char *memspec)
-{
- current_section->fill = fill;
- current_section->region = lang_memory_region_lookup(memspec);
- stat_ptr = &statement_list;
+/* This static variable keeps track of version indices. */
- /* We remember if we are closing a .data section, since we use it to
- store constructors in */
- if (strcmp(current_section->name, ".data") ==0) {
- end_of_data_section_statement_list = statement_list;
+static int version_index;
- }
-}
-/*
- Create an absolute symbol with the given name with the value of the
- address of first byte of the section named.
+/* This is called when we know the name and dependencies of the
+ version. */
- If the symbol already exists, then do nothing.
-*/
void
-DEFUN(lang_abs_symbol_at_beginning_of,(section, name),
- CONST char *section AND
- CONST char *name)
+lang_register_vers_node (name, version, deps)
+ const char *name;
+ struct bfd_elf_version_tree *version;
+ struct bfd_elf_version_deps *deps;
{
- if (ldsym_undefined(name)) {
- asection *s = bfd_get_section_by_name(output_bfd, section);
- asymbol *def = create_symbol(name,
- BSF_GLOBAL | BSF_EXPORT ,
- &bfd_abs_section);
-
+ struct bfd_elf_version_tree *t, **pp;
+ struct bfd_elf_version_expr *e1;
+
+ /* 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);
+
+ /* 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 (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->match, e2->match) == 0)
+ einfo ("%X%P: duplicate expression `%s' in version information\n",
+ e1->match);
- if (s != (asection *)NULL) {
- def->value = s->vma;
+ for (e2 = t->locals; e2 != NULL; e2 = e2->next)
+ if (strcmp (e1->match, e2->match) == 0)
+ einfo ("%X%P: duplicate expression `%s' in version information\n",
+ e1->match);
+ }
}
- else {
- def->value = 0;
+
+ for (e1 = version->locals; 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->match, e2->match) == 0)
+ einfo ("%X%P: duplicate expression `%s' in version information\n",
+ e1->match);
+
+ for (e2 = t->locals; e2 != NULL; e2 = e2->next)
+ if (strcmp (e1->match, e2->match) == 0)
+ einfo ("%X%P: duplicate expression `%s' in version information\n",
+ e1->match);
+ }
}
- }
+
+ version->deps = deps;
+ version->name = name;
+ ++version_index;
+ version->vernum = version_index;
+
+ for (pp = &lang_elf_version_info; *pp != NULL; pp = &(*pp)->next)
+ ;
+ *pp = version;
}
-/*
- Create an absolute symbol with the given name with the value of the
- address of the first byte after the end of the section named.
+/* This is called when we see a version dependency. */
- If the symbol already exists, then do nothing.
-*/
-void
-DEFUN(lang_abs_symbol_at_end_of,(section, name),
- CONST char *section AND
- CONST char *name)
+struct bfd_elf_version_deps *
+lang_add_vers_depend (list, name)
+ struct bfd_elf_version_deps *list;
+ const char *name;
{
- if (ldsym_undefined(name)){
- asection *s = bfd_get_section_by_name(output_bfd, section);
- /* Add a symbol called _end */
- asymbol *def = create_symbol(name,
- BSF_GLOBAL | BSF_EXPORT ,
- &bfd_abs_section);
+ struct bfd_elf_version_deps *ret;
+ struct bfd_elf_version_tree *t;
- if (s != (asection *)NULL) {
- def->value = s->vma + s->_raw_size;
- }
- else {
- def->value = 0;
+ ret = (struct bfd_elf_version_deps *) xmalloc (sizeof *ret);
+ ret->next = list;
+
+ for (t = lang_elf_version_info; t != NULL; t = t->next)
+ {
+ if (strcmp (t->name, name) == 0)
+ {
+ ret->version_needed = t;
+ return ret;
+ }
}
- }
-}
-void
-DEFUN(lang_statement_append,(list, element, field),
- lang_statement_list_type *list AND
- lang_statement_union_type *element AND
- lang_statement_union_type **field)
-{
- *(list->tail) = element;
- list->tail = field;
-}
+ einfo ("%X%P: unable to find version dependency `%s'\n", name);
-/* Set the output format type */
-void
-DEFUN(lang_add_output_format,(format),
-CONST char *format)
-{
- output_target = format;
+ return ret;
}
-
projects / deliverable / binutils-gdb.git / blobdiff