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- /* Linker command language support.
- Copyright (C) 1991, 92, 93, 94 Free Software Foundation, Inc.
-
- This file is part of GLD, the Gnu Linker.
-
- GLD is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 1, or (at your option)
- any later version.
-
- GLD is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- 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. */
-
- #include "bfd.h"
- #include "sysdep.h"
- #include "libiberty.h"
- #include "bfdlink.h"
-
- #include "ld.h"
- #include "ldmain.h"
- #include "ldgram.h"
- #include "ldexp.h"
- #include "ldlang.h"
- #include "ldemul.h"
- #include "ldlex.h"
- #include "ldmisc.h"
- #include "ldctor.h"
- #include "ldfile.h"
-
- /* FORWARDS */
- static void print_statements PARAMS ((void));
- static void print_statement PARAMS ((lang_statement_union_type *,
- lang_output_section_statement_type *));
- static lang_statement_union_type *new_statement PARAMS ((enum statement_enum,
- size_t,
- lang_statement_list_type*));
-
-
- /* 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 bfd_vma print_dot;
- static lang_input_statement_type *first_file;
- static lang_statement_list_type lang_output_section_statement;
- static CONST char *current_target;
- static CONST char *output_target;
- static int longest_section_name = 8;
- static lang_statement_list_type statement_list;
-
- static void print_size PARAMS ((size_t value));
- static void print_alignment PARAMS ((unsigned int value));
- static void print_fill PARAMS ((fill_type value));
- static void print_section PARAMS ((const char *name));
- 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 print_flags PARAMS ((int *ignore_flags));
- static void init_os PARAMS ((lang_output_section_statement_type *s));
- 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));
- 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 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_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_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 reset_memory_regions PARAMS ((void));
-
- /* EXPORTS */
- lang_output_section_statement_type *abs_output_section;
- lang_statement_list_type *stat_ptr = &statement_list;
- lang_statement_list_type file_chain = { 0 };
- static const char *entry_symbol = 0;
- boolean lang_has_input_file = false;
- boolean had_output_filename = false;
- boolean lang_float_flag = false;
- boolean delete_output_file_on_failure = false;
-
- etree_type *base; /* Relocation base - or null */
-
-
- #if defined(__STDC__) || defined(ALMOST_STDC)
- #define cat(a,b) a##b
- #else
- #define cat(a,b) a/**/b
- #endif
-
- #define new_stat(x,y) (cat(x,_type)*) new_statement(cat(x,_enum), sizeof(cat(x,_type)),y)
-
- #define outside_section_address(q) ( (q)->output_offset + (q)->output_section->vma)
-
- #define outside_symbol_address(q) ((q)->value + outside_section_address(q->section))
-
- PTR
- stat_alloc (size)
- size_t size;
- {
- return obstack_alloc (&stat_obstack, size);
- }
-
- static void
- print_size (value)
- size_t value;
- {
- fprintf (config.map_file, "%5x", (unsigned) value);
- }
-
- static void
- print_alignment (value)
- unsigned int value;
- {
- fprintf (config.map_file, "2**%1u", value);
- }
-
- static void
- print_fill (value)
- fill_type value;
- {
- fprintf (config.map_file, "%04x", (unsigned) value);
- }
-
- static void
- print_section (name)
- CONST char *name;
- {
- fprintf (config.map_file, "%*s", -longest_section_name, name);
- }
-
- /*----------------------------------------------------------------------
- lang_for_each_statement walks the parse tree and calls the provided
- function for each node
- */
-
- static void
- lang_for_each_statement_worker (func, s)
- void (*func) PARAMS ((lang_statement_union_type *));
- lang_statement_union_type *s;
- {
- for (; s != (lang_statement_union_type *) NULL; s = s->next)
- {
- func (s);
-
- switch (s->header.type)
- {
- case lang_constructors_statement_enum:
- lang_for_each_statement_worker (func, constructor_list.head);
- break;
- case lang_output_section_statement_enum:
- lang_for_each_statement_worker
- (func,
- s->output_section_statement.children.head);
- break;
- case lang_wild_statement_enum:
- lang_for_each_statement_worker
- (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_assignment_statement_enum:
- case lang_padding_statement_enum:
- case lang_address_statement_enum:
- break;
- default:
- FAIL ();
- break;
- }
- }
- }
-
- void
- lang_for_each_statement (func)
- void (*func) PARAMS ((lang_statement_union_type *));
- {
- lang_for_each_statement_worker (func,
- statement_list.head);
- }
-
- /*----------------------------------------------------------------------*/
- void
- lang_list_init (list)
- lang_statement_list_type *list;
- {
- 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 *
- 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 *)
- stat_alloc (size);
-
- new->header.type = type;
- new->header.next = (lang_statement_union_type *) NULL;
- lang_statement_append (list, new, &new->header.next);
- return new;
- }
-
- /*
- Build a new input file node for the language. There are several ways
- in which we treat an input file, eg, we only look at symbols, or
- prefix it with a -l etc.
-
- We can be supplied with requests for input files more than once;
- they may, for example be split over serveral lines like foo.o(.text)
- foo.o(.data) etc, so when asked for a file we check that we havn't
- got it already so we don't duplicate the bfd.
-
- */
- static lang_input_statement_type *
- new_afile (name, file_type, target, add_to_list)
- CONST char *name;
- lang_input_file_enum_type file_type;
- CONST char *target;
- boolean add_to_list;
- {
- 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;
- p->complained = false;
- 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;
- p->loaded = false;
- lang_statement_append (&input_file_chain,
- (lang_statement_union_type *) p,
- &p->next_real_file);
- return p;
- }
-
- lang_input_statement_type *
- lang_add_input_file (name, file_type, target)
- CONST char *name;
- lang_input_file_enum_type file_type;
- CONST char *target;
- {
- lang_has_input_file = true;
- return new_afile (name, file_type, target, true);
- }
-
- /* Build enough state so that the parser can build its tree */
- void
- lang_init ()
- {
- obstack_begin (&stat_obstack, 1000);
-
- stat_ptr = &statement_list;
-
- 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.
-
- We maintain a list of all the regions here
-
- If no regions are specified in the script, then the default is used
- which is created when looked up to be the entire data space
- */
-
- static lang_memory_region_type *lang_memory_region_list;
- static lang_memory_region_type **lang_memory_region_list_tail = &lang_memory_region_list;
-
- lang_memory_region_type *
- lang_memory_region_lookup (name)
- CONST char *CONST name;
- {
-
- lang_memory_region_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;
- }
- }
- {
- lang_memory_region_type *new =
- (lang_memory_region_type *) stat_alloc ((bfd_size_type) (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 *
- 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 = lookup->next)
- {
- lookup = &u->output_section_statement;
- if (strcmp (name, lookup->name) == 0)
- {
- return lookup;
- }
- }
- return (lang_output_section_statement_type *) NULL;
- }
-
- lang_output_section_statement_type *
- 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->loadable = 1;
- 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;
-
- lang_statement_append (&lang_output_section_statement,
- (lang_statement_union_type *) lookup,
- &lookup->next);
- }
- return lookup;
- }
-
- /*ARGSUSED*/
- static void
- 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, ")");
- }
-
- void
- 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 r_size c_size is attributes\n");
-
- #endif
- for (m = lang_memory_region_list;
- m != (lang_memory_region_type *) NULL;
- m = m->next)
- {
- fprintf (config.map_file, "%-16s", m->name);
- print_address (m->origin);
- print_space ();
- print_address ((bfd_vma)m->length);
- print_space ();
- print_address ((bfd_vma)m->old_length);
- print_space();
- print_address (m->current - m->origin);
- print_space();
- if (m->old_length)
- fprintf (config.map_file, " %2d%% ",
- (int) ((m->current - m->origin) * 100 / m->old_length));
- print_flags (&m->flags);
- fprintf (config.map_file, "\n");
- }
- 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 ();
-
- }
-
- /*
- *
- */
- static void
- 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 *)
- stat_alloc ((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);
- }
- 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;
-
- }
-
- /***********************************************************************
- 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) .
-
- 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.
-
- */
-
- void
- wild_doit (ptr, section, output, file)
- lang_statement_list_type * ptr;
- asection * section;
- lang_output_section_statement_type * output;
- lang_input_statement_type * file;
- {
- if (output->bfd_section == (asection *) NULL)
- 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;
-
- /* 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. */
- section->output_section->flags |=
- section->flags & (flagword) (~ SEC_NEVER_LOAD);
-
- if (!output->loadable)
- {
- /* Turn off load flag */
- output->bfd_section->flags &= ~SEC_LOAD;
- output->bfd_section->flags |= SEC_NEVER_LOAD;
- }
- if (section->alignment_power > output->bfd_section->alignment_power)
- {
- output->bfd_section->alignment_power = section->alignment_power;
- }
- /* If supplied an aligmnet, then force it */
- if (output->section_alignment != -1)
- {
- output->bfd_section->alignment_power = output->section_alignment;
- }
- }
- }
-
- 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;
-
- for (s = file->the_bfd->sections; s != NULL; s = s->next)
- {
- /* Attach all sections named SECTION. If SECTION is NULL,
- then attach all sections.
-
- 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. */
-
- if (section == NULL
- || strcmp (bfd_get_section_name (file->the_bfd, s),
- section) == 0)
- wild_doit (&ptr->children, s, output, file);
- }
- }
- }
-
- /* 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.
-
- 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 *
- lookup_name (name)
- CONST char *name;
- {
- lang_input_statement_type *search;
-
- for (search = (lang_input_statement_type *) input_file_chain.head;
- search != (lang_input_statement_type *) NULL;
- search = (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);
-
- return search;
- }
-
- /* Get the symbols for an input file. */
-
- static void
- load_symbols (entry)
- lang_input_statement_type *entry;
- {
- char **matching;
-
- if (entry->loaded)
- return;
-
- ldfile_open_file (entry);
-
- if (! bfd_check_format (entry->the_bfd, bfd_archive)
- && ! bfd_check_format_matches (entry->the_bfd, bfd_object, &matching))
- {
- bfd_error_type err;
-
- 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");
- }
- else if (err != bfd_error_file_not_recognized)
- einfo ("%F%B: file not recognized: %E\n", entry->the_bfd);
-
- /* Try to interpret the file as a linker script. */
-
- bfd_close (entry->the_bfd);
- entry->the_bfd = NULL;
-
- ldfile_open_command_file (entry->filename);
-
- ldfile_assumed_script = true;
- parser_input = input_script;
- yyparse ();
- ldfile_assumed_script = false;
-
- return;
- }
-
- /* 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. */
- if (bfd_get_format (entry->the_bfd) == bfd_object)
- {
- ldlang_add_file (entry);
- if (trace_files || trace_file_tries)
- info_msg ("%I\n", entry);
- }
-
- 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
- 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;
- {
- 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);
- }
- }
- 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 *
- open_output (name)
- CONST char *name;
- {
- 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);
-
- 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);
- }
-
- delete_output_file_on_failure = 1;
-
- /* output->flags |= D_PAGED;*/
-
- 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);
-
- 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");
-
- bfd_set_gp_size (output, g_switch_value);
- return output;
- }
-
-
-
-
- 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 (config.traditional_format)
- output_bfd->flags |= BFD_TRADITIONAL_FORMAT;
- else
- output_bfd->flags &= ~BFD_TRADITIONAL_FORMAT;
- break;
-
- case lang_target_statement_enum:
- current_target = statement->target_statement.target;
- break;
- default:
- break;
- }
- }
-
- /* Open all the input files. */
-
- 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:
- 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:
- /* Maybe we should load the file's symbols */
- if (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;
-
- /* 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_target_statement_enum:
- current_target = s->target_statement.target;
- break;
- case lang_input_statement_enum:
- if (s->input_statement.real == true)
- {
- 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;
-
- load_symbols (&s->input_statement);
- }
- break;
- default:
- break;
- }
- }
- }
-
- /* If there are [COMMONS] statements, put a wild one into the bss section */
-
- static void
- lang_reasonable_defaults ()
- {
- #if 0
- lang_output_section_statement_lookup (".text");
- lang_output_section_statement_lookup (".data");
-
- default_common_section =
- lang_output_section_statement_lookup (".bss");
-
-
- 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
-
- }
-
- /*
- 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;
-
- void
- ldlang_add_undef (name)
- CONST char *CONST name;
- {
- ldlang_undef_chain_list_type *new =
- (ldlang_undef_chain_list_type
- *) stat_alloc ((bfd_size_type) (sizeof (ldlang_undef_chain_list_type)));
-
- new->next = ldlang_undef_chain_list_head;
- ldlang_undef_chain_list_head = new;
-
- 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
- lang_place_undefineds ()
- {
- ldlang_undef_chain_list_type *ptr;
-
- for (ptr = ldlang_undef_chain_list_head;
- ptr != (ldlang_undef_chain_list_type *) NULL;
- ptr = ptr->next)
- {
- struct bfd_link_hash_entry *h;
-
- h = bfd_link_hash_lookup (link_info.hash, ptr->name, true, false, true);
- if (h == (struct bfd_link_hash_entry *) NULL)
- einfo ("%P%F: bfd_link_hash_lookup failed: %E");
- 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);
- }
- }
- }
-
- /* 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;
- {
- for (; s != (lang_statement_union_type *) NULL; s = s->next)
- {
- switch (s->header.type)
- {
-
-
- case lang_wild_statement_enum:
- wild (&s->wild_statement, s->wild_statement.section_name,
- s->wild_statement.filename, target,
- output_section_statement);
-
- 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_group_statement_enum:
- map_input_to_output_sections (s->group_statement.children.head,
- target,
- output_section_statement);
- break;
- case lang_fill_statement_enum:
- case lang_input_section_enum:
- case lang_object_symbols_statement_enum:
- case lang_data_statement_enum:
- case lang_reloc_statement_enum:
- case lang_assignment_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_afile_asection_pair_statement_enum:
- FAIL ();
- break;
- 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;
- }
- }
- }
-
- static void
- 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 (section->_raw_size);
- print_space ();
- print_size(section->_cooked_size);
- 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 ");
-
- }
- else
- {
- fprintf (config.map_file, " (no attached output section)");
- }
- print_nl ();
- if (output_section_statement->load_base)
- {
- int b = exp_get_abs_int(output_section_statement->load_base,
- 0, "output base", lang_final_phase_enum);
- fprintf (config.map_file, "Output address %08x\n", b);
- }
- if (output_section_statement->section_alignment >= 0
- || output_section_statement->section_alignment >= 0)
- {
- fprintf (config.map_file, "\t\t\t\t\tforced alignment ");
- if (output_section_statement->section_alignment >= 0)
- {
- fprintf (config.map_file, "section 2**%d ",output_section_statement->section_alignment );
- }
- if ( output_section_statement->subsection_alignment >= 0)
- {
- fprintf (config.map_file, "subsection 2**%d ",output_section_statement->subsection_alignment );
- }
-
- print_nl ();
- }
- print_statement (output_section_statement->children.head,
- output_section_statement);
-
- }
-
- static void
- print_assignment (assignment, output_section)
- lang_assignment_statement_type * assignment;
- lang_output_section_statement_type * output_section;
- {
- 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");
- }
-
- 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);
- }
- }
-
- /* Print all the defined symbols for the abfd provided by in the supplied
- section.
- */
-
- static boolean
- print_one_symbol (hash_entry, ptr)
- struct bfd_link_hash_entry *hash_entry;
- PTR ptr;
- {
- asection * sec = (asection *)ptr;
-
- if (hash_entry->type == bfd_link_hash_defined)
- {
- if (sec == hash_entry->u.def.section) {
- print_section ("");
- fprintf (config.map_file, " ");
- print_section ("");
- fprintf (config.map_file, " ");
- print_address (hash_entry->u.def.value + outside_section_address (sec));
- fprintf (config.map_file, " %s", hash_entry->root.string);
- print_nl ();
- }
- }
-
- return true;
- }
-
- 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_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 (i->_raw_size);
- fprintf (config.map_file, " ");
- print_size(i->_cooked_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 ");
- }
-
- 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);
- }
- fprintf (config.map_file, "(overhead %d bytes)", (int) bfd_alloc_size (abfd));
- print_nl ();
-
- /* Print all the symbols */
- bfd_link_hash_traverse (link_info.hash, print_one_symbol, (PTR) i);
- }
- else
- {
- print_nl ();
- }
-
-
- print_dot = outside_section_address (i) + size;
- }
- else
- {
- fprintf (config.map_file, "No output section allocated\n");
- }
- }
- }
-
- static void
- print_fill_statement (fill)
- lang_fill_statement_type * fill;
- {
- fprintf (config.map_file, "FILL mask ");
- print_fill (fill->fill);
- }
-
- static void
- 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 QUAD:
- fprintf (config.map_file, "QUAD ");
- print_dot += QUAD_SIZE;
- break;
- }
-
- exp_print_tree (data->exp);
-
- fprintf (config.map_file, "\n");
- }
-
- /* Print a reloc statement. */
-
- static void
- print_reloc_statement (reloc)
- lang_reloc_statement_type *reloc;
- {
- print_section ("");
- print_space ();
- print_section ("");
- print_space ();
-
- /* ASSERT(print_dot == data->output_vma);*/
-
- print_address (reloc->output_vma + reloc->output_section->vma);
- print_space ();
- print_address (reloc->addend_value);
- print_space ();
-
- fprintf (config.map_file, "RELOC %s ", reloc->howto->name);
-
- print_dot += bfd_get_reloc_size (reloc->howto);
-
- exp_print_tree (reloc->addend_exp);
-
- fprintf (config.map_file, "\n");
- }
-
- static void
- 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 ();
-
- print_dot = s->output_offset + s->output_section->vma + s->size;
-
- }
-
- static void
- print_wild_statement (w, os)
- lang_wild_statement_type * w;
- 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);
-
- }
-
- /* 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 (s->children.head, os);
- fprintf (config.map_file, "END GROUP\n");
- }
-
- static void
- print_statement (s, os)
- lang_statement_union_type * s;
- lang_output_section_statement_type * os;
- {
- while (s)
- {
- switch (s->header.type)
- {
- 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;
- 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_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:
- fprintf (config.map_file, "OUTPUT(%s %s)\n",
- s->output_statement.name,
- output_target ? output_target : "");
- 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;
- }
- s = s->next;
- }
- }
-
-
- static void
- print_statements ()
- {
- print_statement (statement_list.head,
- abs_output_section);
-
- }
-
- 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 ((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;
- }
-
-
- /* 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)
- dot = align_power (dot, os->bfd_section->alignment_power);
- }
- 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 (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->length)
- || ( os->region->origin > os->region->current ))
- {
- 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;
-
- }
-
- }
-
-
- }
-
- 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;
- }
- 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)
- 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;
- 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;
- }
-
- static void
- lang_finish ()
- {
- struct bfd_link_hash_entry *h;
- boolean warn = link_info.relocateable ? false : 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)
- {
- 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. */
-
- 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));
- }
- }
-
- /* 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
- {
- unsigned int power;
-
- for (power = 1; power < 4; 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.alignment_power;
-
- if (config.sort_common
- && power_of_two < *(unsigned int *) info
- && *(unsigned int *) info < 4)
- return true;
-
- section = h->u.c.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;
-
- if (config.map_file != NULL)
- fprintf (config.map_file, "Allocating common %s: %lx at %lx %s\n",
- h->root.string, (unsigned long) size,
- (unsigned long) h->u.def.value, section->owner->filename);
-
- 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;
-
- if (file->just_syms_flag)
- continue;
-
- 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 (! link_info.relocateable
- && ! command_line.force_common_definition)
- {
- if (default_common_section ==
- (lang_output_section_statement_type *) NULL)
- {
- info_msg ("%P: no [COMMON] command, defaulting to .bss\n");
-
- 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);
- }
-
- 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 >= x) return l;
- i<<=1;
- }
- return 0;
- }
- void
- lang_enter_output_section_statement (output_section_statement_name,
- address_exp, flags, block_value,
- align, subalign, ebase)
- const char *output_section_statement_name;
- etree_type * address_exp;
- int flags;
- 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->flags = flags;
- if (flags & SEC_NEVER_LOAD)
- os->loadable = 0;
- else
- os->loadable = 1;
- 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);
-
- /* 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 ();
-
- /* 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);
-
-
- reset_memory_regions ();
-
- /* Keep relaxing until bfd_relax_section gives up. */
- do
- {
- 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 ();
-
- /* 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. */
-
- void
- lang_add_entry (name, cmdline)
- CONST char *name;
- int cmdline;
- {
- static int from_cmdline;
-
- if (entry_symbol == NULL
- || cmdline
- || ! from_cmdline)
- {
- entry_symbol = name;
- from_cmdline = cmdline;
- }
- }
-
- 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;
- const 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)
- bfd_vma fill;
- CONST char *memspec;
- {
- current_section->fill = fill;
- current_section->region = lang_memory_region_lookup (memspec);
- stat_ptr = &statement_list;
- }
-
- /*
- Create an absolute symbol with the given name with the value of the
- address of first byte of the section named.
-
- If the symbol already exists, then do nothing.
- */
- void
- lang_abs_symbol_at_beginning_of (secname, name)
- const char *secname;
- const char *name;
- {
- struct bfd_link_hash_entry *h;
-
- h = bfd_link_hash_lookup (link_info.hash, name, true, true, true);
- if (h == (struct bfd_link_hash_entry *) NULL)
- 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);
-
- h->u.def.section = bfd_abs_section_ptr;
- }
- }
-
- /*
- Create an absolute symbol with the given name with the value of the
- address of the first byte after the end of the section named.
-
- If the symbol already exists, then do nothing.
- */
- void
- lang_abs_symbol_at_end_of (secname, name)
- const char *secname;
- const char *name;
- {
- struct bfd_link_hash_entry *h;
-
- h = bfd_link_hash_lookup (link_info.hash, name, true, true, true);
- if (h == (struct bfd_link_hash_entry *) NULL)
- 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
- lang_statement_append (list, element, field)
- lang_statement_list_type * list;
- lang_statement_union_type * element;
- lang_statement_union_type ** field;
- {
- *(list->tail) = element;
- list->tail = field;
- }
-
- /* Set the output format type. -oformat overrides scripts. */
-
- void
- lang_add_output_format (format, big, little, from_script)
- const char *format;
- const char *big;
- const char *little;
- int from_script;
- {
- if (output_target == NULL || !from_script)
- {
- 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
- lang_enter_group ()
- {
- lang_group_statement_type *g;
-
- 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
- lang_leave_group ()
- {
- stat_ptr = &statement_list;
- }
-