ae475b39b2
* ldlang.c (lang_output_section_statement_lookup): initilize new field. (wild_doit): if new field is not set, then stop output section from being loadable. (lang_enter_output_section_statement): set the field from the NOLOAD keyword * ldgram.y: new synax for NOLOAD. Removes a shift/reduce too. * h8300hms.sc-sh, h8300hms.em: get -r right.
2650 lines
64 KiB
C
2650 lines
64 KiB
C
/* Copyright (C) 1991 Free Software Foundation, Inc.
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This file is part of GLD, the Gnu Linker.
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GLD is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 1, or (at your option)
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any later version.
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GLD is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GLD; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "bfd.h"
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#include "sysdep.h"
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#include "ld.h"
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#include "ldmain.h"
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#include "ldsym.h"
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#include "ldgram.h"
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#include "ldwarn.h"
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#include "ldlang.h"
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#include "ldexp.h"
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#include "ldemul.h"
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#include "ldlex.h"
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#include "ldmisc.h"
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#include "ldindr.h"
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#include "ldctor.h"
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/* FORWARDS */
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PROTO (static void, print_statements, (void));
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PROTO (static void, print_statement, (lang_statement_union_type *,
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lang_output_section_statement_type *));
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/* LOCALS */
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static struct obstack stat_obstack;
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#define obstack_chunk_alloc ldmalloc
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#define obstack_chunk_free free
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static CONST char *startup_file;
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static lang_statement_list_type input_file_chain;
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/* Points to the last statement in the .data section, so we can add
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stuff to the data section without pain */
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static lang_statement_list_type end_of_data_section_statement_list;
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/* List of statements needed to handle constructors */
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extern lang_statement_list_type constructor_list;
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static boolean placed_commons = false;
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static lang_output_section_statement_type *default_common_section;
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static boolean map_option_f;
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static bfd_vma print_dot;
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static lang_input_statement_type *first_file;
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static lang_statement_list_type lang_output_section_statement;
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static CONST char *current_target;
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static CONST char *output_target;
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static size_t longest_section_name = 8;
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static asection common_section;
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static section_userdata_type common_section_userdata;
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static lang_statement_list_type statement_list;
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/* EXPORTS */
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boolean relaxing;
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lang_output_section_statement_type *abs_output_section;
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lang_statement_list_type *stat_ptr = &statement_list;
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lang_input_statement_type *script_file = 0;
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boolean option_longmap = false;
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lang_statement_list_type file_chain =
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{0};
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CONST char *entry_symbol = 0;
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bfd_size_type largest_section = 0;
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boolean lang_has_input_file = false;
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lang_output_section_statement_type *create_object_symbols = 0;
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boolean had_output_filename = false;
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boolean lang_float_flag = false;
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/* IMPORTS */
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extern char *default_target;
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extern unsigned int undefined_global_sym_count;
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extern char *current_file;
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extern bfd *output_bfd;
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extern enum bfd_architecture ldfile_output_architecture;
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extern unsigned long ldfile_output_machine;
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extern char *ldfile_output_machine_name;
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extern ldsym_type *symbol_head;
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extern unsigned int commons_pending;
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extern args_type command_line;
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extern ld_config_type config;
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extern boolean had_script;
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extern boolean write_map;
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#ifdef __STDC__
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#define cat(a,b) a##b
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#else
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#define cat(a,b) a/**/b
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#endif
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#define new_stat(x,y) (cat(x,_type)*) new_statement(cat(x,_enum), sizeof(cat(x,_type)),y)
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#define outside_section_address(q) ( (q)->output_offset + (q)->output_section->vma)
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#define outside_symbol_address(q) ((q)->value + outside_section_address(q->section))
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void EXFUN (lang_add_data, (int type, union etree_union * exp));
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PTR
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DEFUN (stat_alloc, (size),
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size_t size)
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{
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return obstack_alloc (&stat_obstack, size);
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}
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static void
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DEFUN (print_size, (value),
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size_t value)
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{
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fprintf (config.map_file, "%5x", (unsigned) value);
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}
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static void
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DEFUN (print_alignment, (value),
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unsigned int value)
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{
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fprintf (config.map_file, "2**%1u", value);
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}
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static void
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DEFUN (print_fill, (value),
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fill_type value)
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{
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fprintf (config.map_file, "%04x", (unsigned) value);
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}
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static void
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DEFUN (print_section, (name),
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CONST char *CONST name)
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{
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fprintf (config.map_file, "%*s", -longest_section_name, name);
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}
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/*----------------------------------------------------------------------
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lang_for_each_statement walks the parse tree and calls the provided
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function for each node
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*/
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static void
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DEFUN (lang_for_each_statement_worker, (func, s),
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void (*func) ()AND
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lang_statement_union_type * s)
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{
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for (; s != (lang_statement_union_type *) NULL; s = s->next)
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{
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func (s);
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switch (s->header.type)
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{
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case lang_constructors_statement_enum:
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lang_for_each_statement_worker (func, constructor_list.head);
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break;
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case lang_output_section_statement_enum:
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lang_for_each_statement_worker
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(func,
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s->output_section_statement.children.head);
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break;
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case lang_wild_statement_enum:
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lang_for_each_statement_worker
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(func,
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s->wild_statement.children.head);
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break;
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case lang_data_statement_enum:
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case lang_object_symbols_statement_enum:
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case lang_output_statement_enum:
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case lang_target_statement_enum:
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case lang_input_section_enum:
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case lang_input_statement_enum:
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case lang_assignment_statement_enum:
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case lang_padding_statement_enum:
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case lang_address_statement_enum:
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break;
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default:
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FAIL ();
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break;
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}
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}
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}
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void
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DEFUN (lang_for_each_statement, (func),
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void (*func) ())
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{
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lang_for_each_statement_worker (func,
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statement_list.head);
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}
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/*----------------------------------------------------------------------*/
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void
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DEFUN (lang_list_init, (list),
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lang_statement_list_type * list)
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{
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list->head = (lang_statement_union_type *) NULL;
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list->tail = &list->head;
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}
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/*----------------------------------------------------------------------
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build a new statement node for the parse tree
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*/
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static
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lang_statement_union_type *
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DEFUN (new_statement, (type, size, list),
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enum statement_enum type AND
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bfd_size_type size AND
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lang_statement_list_type * list)
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{
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lang_statement_union_type *new = (lang_statement_union_type *)
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stat_alloc (size);
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new->header.type = type;
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new->header.next = (lang_statement_union_type *) NULL;
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lang_statement_append (list, new, &new->header.next);
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return new;
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}
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/*
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Build a new input file node for the language. There are several ways
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in which we treat an input file, eg, we only look at symbols, or
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prefix it with a -l etc.
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We can be supplied with requests for input files more than once;
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they may, for example be split over serveral lines like foo.o(.text)
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foo.o(.data) etc, so when asked for a file we check that we havn't
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got it already so we don't duplicate the bfd.
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*/
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static lang_input_statement_type *
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DEFUN (new_afile, (name, file_type, target),
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CONST char *CONST name AND
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CONST lang_input_file_enum_type file_type AND
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CONST char *CONST target)
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{
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lang_input_statement_type *p = new_stat (lang_input_statement,
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stat_ptr);
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lang_has_input_file = true;
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p->target = target;
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p->complained = false;
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switch (file_type)
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{
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case lang_input_file_is_symbols_only_enum:
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p->filename = name;
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p->is_archive = false;
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p->real = true;
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p->local_sym_name = name;
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p->just_syms_flag = true;
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p->search_dirs_flag = false;
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break;
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case lang_input_file_is_fake_enum:
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p->filename = name;
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p->is_archive = false;
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p->real = false;
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p->local_sym_name = name;
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p->just_syms_flag = false;
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p->search_dirs_flag = false;
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break;
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case lang_input_file_is_l_enum:
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p->is_archive = true;
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p->filename = name;
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p->real = true;
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p->local_sym_name = concat ("-l", name, "");
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p->just_syms_flag = false;
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p->search_dirs_flag = true;
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break;
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case lang_input_file_is_search_file_enum:
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case lang_input_file_is_marker_enum:
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p->filename = name;
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p->is_archive = false;
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p->real = true;
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p->local_sym_name = name;
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p->just_syms_flag = false;
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p->search_dirs_flag = true;
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break;
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case lang_input_file_is_file_enum:
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p->filename = name;
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p->is_archive = false;
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p->real = true;
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p->local_sym_name = name;
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p->just_syms_flag = false;
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p->search_dirs_flag = false;
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break;
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default:
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FAIL ();
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}
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p->asymbols = (asymbol **) NULL;
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p->superfile = (lang_input_statement_type *) NULL;
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p->next_real_file = (lang_statement_union_type *) NULL;
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p->next = (lang_statement_union_type *) NULL;
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p->symbol_count = 0;
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p->common_output_section = (asection *) NULL;
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lang_statement_append (&input_file_chain,
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(lang_statement_union_type *) p,
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&p->next_real_file);
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return p;
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}
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lang_input_statement_type *
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DEFUN (lang_add_input_file, (name, file_type, target),
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CONST char *name AND
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lang_input_file_enum_type file_type AND
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CONST char *target)
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{
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/* Look it up or build a new one */
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lang_has_input_file = true;
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#if 0
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lang_input_statement_type *p;
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for (p = (lang_input_statement_type *) input_file_chain.head;
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p != (lang_input_statement_type *) NULL;
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p = (lang_input_statement_type *) (p->next_real_file))
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{
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/* Sometimes we have incomplete entries in here */
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if (p->filename != (char *) NULL)
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{
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if (strcmp (name, p->filename) == 0)
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return p;
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}
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}
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#endif
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return new_afile (name, file_type, target);
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}
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/* Build enough state so that the parser can build its tree */
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void
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DEFUN_VOID (lang_init)
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{
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obstack_begin (&stat_obstack, 1000);
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stat_ptr = &statement_list;
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lang_list_init (stat_ptr);
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lang_list_init (&input_file_chain);
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lang_list_init (&lang_output_section_statement);
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lang_list_init (&file_chain);
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first_file = lang_add_input_file ((char *) NULL,
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lang_input_file_is_marker_enum,
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(char *) NULL);
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abs_output_section = lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME);
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abs_output_section->bfd_section = &bfd_abs_section;
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}
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/*----------------------------------------------------------------------
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A region is an area of memory declared with the
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MEMORY { name:org=exp, len=exp ... }
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syntax.
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We maintain a list of all the regions here
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If no regions are specified in the script, then the default is used
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which is created when looked up to be the entire data space
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*/
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static lang_memory_region_type *lang_memory_region_list;
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static lang_memory_region_type **lang_memory_region_list_tail = &lang_memory_region_list;
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lang_memory_region_type *
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DEFUN (lang_memory_region_lookup, (name),
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CONST char *CONST name)
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{
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lang_memory_region_type *p = lang_memory_region_list;
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for (p = lang_memory_region_list;
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p != (lang_memory_region_type *) NULL;
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p = p->next)
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{
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if (strcmp (p->name, name) == 0)
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{
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return p;
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}
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}
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if (strcmp (name, "*default*") == 0)
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{
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/* This is the default region, dig out first one on the list */
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if (lang_memory_region_list != (lang_memory_region_type *) NULL)
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{
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return lang_memory_region_list;
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}
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}
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{
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lang_memory_region_type *new =
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(lang_memory_region_type *) stat_alloc ((bfd_size_type) (sizeof (lang_memory_region_type)));
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new->name = buystring (name);
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new->next = (lang_memory_region_type *) NULL;
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*lang_memory_region_list_tail = new;
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lang_memory_region_list_tail = &new->next;
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new->origin = 0;
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new->length = ~0;
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new->current = 0;
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new->had_full_message = false;
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return new;
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}
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}
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lang_output_section_statement_type *
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DEFUN (lang_output_section_find, (name),
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CONST char *CONST name)
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{
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lang_statement_union_type *u;
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lang_output_section_statement_type *lookup;
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for (u = lang_output_section_statement.head;
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u != (lang_statement_union_type *) NULL;
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u = lookup->next)
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{
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lookup = &u->output_section_statement;
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if (strcmp (name, lookup->name) == 0)
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{
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return lookup;
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}
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}
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return (lang_output_section_statement_type *) NULL;
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}
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|
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lang_output_section_statement_type *
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DEFUN (lang_output_section_statement_lookup, (name),
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CONST char *CONST name)
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{
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lang_output_section_statement_type *lookup;
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lookup = lang_output_section_find (name);
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if (lookup == (lang_output_section_statement_type *) NULL)
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{
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lookup = (lang_output_section_statement_type *)
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new_stat (lang_output_section_statement, stat_ptr);
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lookup->region = (lang_memory_region_type *) NULL;
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lookup->fill = 0;
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lookup->block_value = 1;
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lookup->name = name;
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lookup->next = (lang_statement_union_type *) NULL;
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lookup->bfd_section = (asection *) NULL;
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lookup->processed = false;
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lookup->loadable = 1;
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lookup->addr_tree = (etree_type *) NULL;
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lang_list_init (&lookup->children);
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|
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lang_statement_append (&lang_output_section_statement,
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(lang_statement_union_type *) lookup,
|
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&lookup->next);
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}
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return lookup;
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}
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|
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/*ARGSUSED*/
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static void
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DEFUN (print_flags, (ignore_flags),
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int *ignore_flags)
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{
|
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fprintf (config.map_file, "(");
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#if 0
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if (flags->flag_read)
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fprintf (outfile, "R");
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if (flags->flag_write)
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fprintf (outfile, "W");
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if (flags->flag_executable)
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fprintf (outfile, "X");
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if (flags->flag_loadable)
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fprintf (outfile, "L");
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#endif
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fprintf (config.map_file, ")");
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}
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|
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void
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DEFUN_VOID (lang_map)
|
|
{
|
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lang_memory_region_type *m;
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|
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fprintf (config.map_file, "**MEMORY CONFIGURATION**\n\n");
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|
#ifdef HOST_64_BIT
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fprintf (config.map_file, "name\t\torigin\t\tlength\t\tattributes\n");
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#else
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fprintf (config.map_file,
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"name\t\torigin length r_size c_size is attributes\n");
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#endif
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for (m = lang_memory_region_list;
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m != (lang_memory_region_type *) NULL;
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m = m->next)
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{
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fprintf (config.map_file, "%-16s", m->name);
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print_address (m->origin);
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print_space ();
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print_address (m->length);
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print_space ();
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print_address (m->old_length);
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print_space();
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print_address (m->current - m->origin);
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print_space();
|
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if (m->old_length)
|
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fprintf(config.map_file," %2d%% ", ( m->current - m->origin) * 100 / m->old_length);
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print_flags (&m->flags);
|
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fprintf (config.map_file, "\n");
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}
|
|
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");
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|
|
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 *)
|
|
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.
|
|
|
|
*/
|
|
|
|
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)
|
|
{
|
|
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;
|
|
section->output_section->flags |= section->flags;
|
|
if (!output->loadable)
|
|
{
|
|
/* Turn of load flag */
|
|
output->bfd_section->flags &= ~SEC_LOAD;
|
|
}
|
|
if (section->alignment_power > output->bfd_section->alignment_power)
|
|
{
|
|
output->bfd_section->alignment_power = section->alignment_power;
|
|
}
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* 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 *
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* 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;
|
|
|
|
|
|
}
|
|
|
|
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)
|
|
{
|
|
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 *
|
|
DEFUN (open_output, (name),
|
|
CONST char *CONST name)
|
|
{
|
|
extern unsigned long ldfile_output_machine;
|
|
extern enum bfd_architecture ldfile_output_architecture;
|
|
|
|
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);
|
|
bfd_set_arch_mach (output,
|
|
ldfile_output_architecture,
|
|
ldfile_output_machine);
|
|
return output;
|
|
}
|
|
|
|
|
|
|
|
|
|
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 lang_target_statement_enum:
|
|
current_target = statement->target_statement.target;
|
|
break;
|
|
default:
|
|
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);
|
|
}
|
|
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
|
|
DEFUN (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
|
|
DEFUN_VOID (lang_place_undefineds)
|
|
{
|
|
ldlang_undef_chain_list_type *ptr = ldlang_undef_chain_list_head;
|
|
|
|
while (ptr != (ldlang_undef_chain_list_type *) NULL)
|
|
{
|
|
asymbol *def;
|
|
asymbol **def_ptr = (asymbol **) stat_alloc ((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->name);
|
|
ptr = ptr->next;
|
|
}
|
|
}
|
|
|
|
/* Copy important data from out internal form to the bfd way. Also
|
|
create a section for the dummy file
|
|
*/
|
|
|
|
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);
|
|
}
|
|
|
|
}
|
|
|
|
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;
|
|
abs_output_section = lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME);
|
|
|
|
abs_output_section->bfd_section = &bfd_abs_section;
|
|
|
|
}
|
|
|
|
/* 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)
|
|
{
|
|
|
|
|
|
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 */
|
|
{
|
|
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);
|
|
}
|
|
}
|
|
break;
|
|
case lang_input_statement_enum:
|
|
/* A standard input statement, has no wildcards */
|
|
/* ldmain_open_file_read_symbol(&s->input_statement);*/
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
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 (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 ();
|
|
print_statement (output_section_statement->children.head,
|
|
output_section_statement);
|
|
|
|
}
|
|
|
|
static void
|
|
DEFUN (print_assignment, (assignment, output_section),
|
|
lang_assignment_statement_type * assignment AND
|
|
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
|
|
DEFUN (print_input_statement, (statm),
|
|
lang_input_statement_type * statm)
|
|
{
|
|
if (statm->filename != (char *) NULL)
|
|
{
|
|
fprintf (config.map_file, "LOAD %s\n", statm->filename);
|
|
}
|
|
}
|
|
|
|
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 ();
|
|
}
|
|
|
|
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);
|
|
|
|
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 ();
|
|
|
|
/* Find all the symbols in this file defined in this section */
|
|
|
|
if (in->ifile->symbol_count)
|
|
{
|
|
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 ();
|
|
}
|
|
|
|
|
|
print_dot = outside_section_address (i) + size;
|
|
}
|
|
else
|
|
{
|
|
fprintf (config.map_file, "No output section allocated\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
DEFUN (print_fill_statement, (fill),
|
|
lang_fill_statement_type * fill)
|
|
{
|
|
fprintf (config.map_file, "FILL mask ");
|
|
print_fill (fill->fill);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
exp_print_tree (data->exp);
|
|
|
|
fprintf (config.map_file, "\n");
|
|
}
|
|
|
|
|
|
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 ();
|
|
|
|
print_dot = s->output_offset + s->output_section->vma + s->size;
|
|
|
|
}
|
|
|
|
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);
|
|
|
|
}
|
|
static void
|
|
DEFUN (print_statement, (s, os),
|
|
lang_statement_union_type * s AND
|
|
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_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;
|
|
}
|
|
s = s->next;
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
DEFUN_VOID (print_statements)
|
|
{
|
|
print_statement (statement_list.head,
|
|
abs_output_section);
|
|
|
|
}
|
|
|
|
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;
|
|
|
|
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
|
|
DEFUN (size_input_section, (this_ptr, output_section_statement, fill,
|
|
dot, relax),
|
|
lang_statement_union_type ** this_ptr AND
|
|
lang_output_section_statement_type * output_section_statement AND
|
|
unsigned short fill AND
|
|
bfd_vma dot AND
|
|
boolean relax)
|
|
{
|
|
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);
|
|
|
|
/* 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);
|
|
}
|
|
|
|
/* 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 (relax)
|
|
{
|
|
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;
|
|
}
|
|
|
|
/* 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)
|
|
{
|
|
/* 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 == &bfd_abs_section)
|
|
{
|
|
/* No matter what happens, an abs section starts at zero */
|
|
bfd_set_section_vma (0, os->bfd_section, 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;
|
|
}
|
|
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 */
|
|
|
|
|
|
dot = align_power (dot, os->bfd_section->alignment_power);
|
|
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 (os->bfd_section->vma +
|
|
os->bfd_section->_raw_size,
|
|
os->block_value);
|
|
|
|
|
|
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->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;
|
|
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
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;
|
|
|
|
}
|
|
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:
|
|
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)
|
|
{
|
|
relaxing = true;
|
|
|
|
if( relax_section (prev))
|
|
had_relax = true;
|
|
relaxing = false;
|
|
|
|
}
|
|
else {
|
|
(*prev)->input_section.section->_cooked_size =
|
|
(*prev)->input_section.section->_raw_size ;
|
|
|
|
}
|
|
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)
|
|
/* We've been moved ! so insert a pad */
|
|
{
|
|
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 = *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;
|
|
default:
|
|
FAIL ();
|
|
break;
|
|
/* This can only get here when relaxing is turned on */
|
|
case lang_padding_statement_enum:
|
|
|
|
case lang_address_statement_enum:
|
|
break;
|
|
}
|
|
prev = &s->header.next;
|
|
}
|
|
return dot;
|
|
}
|
|
|
|
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)
|
|
{
|
|
|
|
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);
|
|
|
|
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;
|
|
}
|
|
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 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);
|
|
}
|
|
|
|
break;
|
|
case lang_padding_statement_enum:
|
|
dot += s->padding_statement.size;
|
|
break;
|
|
default:
|
|
FAIL ();
|
|
break;
|
|
case lang_address_statement_enum:
|
|
break;
|
|
}
|
|
|
|
}
|
|
return dot;
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
DEFUN_VOID (lang_relocate_globals)
|
|
{
|
|
|
|
/*
|
|
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_EACH_LDSYM (lgs)
|
|
{
|
|
asymbol *it;
|
|
|
|
if (lgs->sdefs_chain)
|
|
{
|
|
it = *(lgs->sdefs_chain);
|
|
}
|
|
else if (lgs->scoms_chain != (asymbol **) NULL)
|
|
{
|
|
it = *(lgs->scoms_chain);
|
|
}
|
|
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)
|
|
{
|
|
asymbol **ptr = lgs->srefs_chain;;
|
|
if (lgs->flags & SYM_WARNING)
|
|
{
|
|
produce_warnings (lgs, it);
|
|
}
|
|
|
|
while (ptr != (asymbol **) NULL)
|
|
{
|
|
asymbol *ref = *ptr;
|
|
|
|
*ptr = it;
|
|
ptr = (asymbol **) (ref->udata);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
DEFUN_VOID (lang_finish)
|
|
{
|
|
ldsym_type *lgs;
|
|
|
|
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));
|
|
|
|
}
|
|
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);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* By now we know the target architecture, and we may have an */
|
|
/* ldfile_output_machine_name */
|
|
static void
|
|
DEFUN_VOID (lang_check)
|
|
{
|
|
lang_statement_union_type *file;
|
|
bfd *input_bfd;
|
|
unsigned long input_machine;
|
|
enum bfd_architecture input_architecture;
|
|
CONST bfd_arch_info_type *compatible;
|
|
|
|
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;
|
|
|
|
input_bfd = file->input_statement.the_bfd;
|
|
|
|
input_machine = bfd_get_mach (input_bfd);
|
|
input_architecture = bfd_get_arch (input_bfd);
|
|
|
|
|
|
/* Inspect the architecture and ensure we're linking like with
|
|
like */
|
|
|
|
compatible = bfd_arch_get_compatible (input_bfd,
|
|
output_bfd);
|
|
|
|
if (compatible)
|
|
{
|
|
ldfile_output_machine = compatible->mach;
|
|
ldfile_output_architecture = compatible->arch;
|
|
}
|
|
else
|
|
{
|
|
|
|
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));
|
|
|
|
bfd_set_arch_mach (output_bfd,
|
|
ldfile_new_output_architecture,
|
|
ldfile_new_output_machine);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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
|
|
*/
|
|
|
|
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;
|
|
}
|
|
|
|
/* Symbol stops being common and starts being global, but
|
|
we remember that it was common once. */
|
|
|
|
com->flags = BSF_EXPORT | BSF_GLOBAL | BSF_OLD_COMMON;
|
|
com->value = com->section->_raw_size;
|
|
|
|
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);
|
|
}
|
|
|
|
com->section->_raw_size += size;
|
|
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
|
|
/*
|
|
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
|
|
DEFUN_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->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");
|
|
|
|
}
|
|
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);
|
|
|
|
wild_doit (&os->children, s, os, file);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
DEFUN (lang_set_flags, (ptr, flags),
|
|
int *ptr AND
|
|
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 illegal syntax in flags\n");
|
|
break;
|
|
}
|
|
flags++;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
void
|
|
DEFUN (lang_for_each_file, (func),
|
|
PROTO (void, (*func), (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);
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
DEFUN (lang_for_each_input_section, (func),
|
|
PROTO (void, (*func), (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);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
void
|
|
DEFUN (ldlang_add_file, (entry),
|
|
lang_input_statement_type * entry)
|
|
{
|
|
|
|
lang_statement_append (&file_chain,
|
|
(lang_statement_union_type *) entry,
|
|
&entry->next);
|
|
}
|
|
|
|
void
|
|
DEFUN (lang_add_output, (name),
|
|
CONST char *name)
|
|
{
|
|
lang_output_statement_type *new = new_stat (lang_output_statement,
|
|
stat_ptr);
|
|
|
|
new->name = name;
|
|
had_output_filename = true;
|
|
}
|
|
|
|
|
|
static lang_output_section_statement_type *current_section;
|
|
|
|
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);
|
|
|
|
|
|
|
|
/* 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;
|
|
stat_ptr = &os->children;
|
|
|
|
}
|
|
|
|
void
|
|
DEFUN_VOID (lang_final)
|
|
{
|
|
if (had_output_filename == false)
|
|
{
|
|
extern CONST char *output_filename;
|
|
|
|
lang_add_output (output_filename);
|
|
}
|
|
}
|
|
|
|
/* 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->old_length = p->current - p->origin;
|
|
p->current = p->origin;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
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 **) stat_alloc ((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;
|
|
|
|
*def_ptr = def;
|
|
Q_enter_global_ref (def_ptr, name);
|
|
return def;
|
|
}
|
|
|
|
void
|
|
DEFUN_VOID (lang_process)
|
|
{
|
|
|
|
if (had_script == false)
|
|
{
|
|
parse_line (ldemul_get_script (), 1);
|
|
}
|
|
lang_reasonable_defaults ();
|
|
current_target = default_target;
|
|
|
|
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 ();
|
|
|
|
/* Create a dummy bfd for the script */
|
|
lang_init_script_file ();
|
|
|
|
/* 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;
|
|
lang_for_each_statement (open_input_bfds);
|
|
|
|
common_section.userdata = (PTR) & common_section_userdata;
|
|
|
|
|
|
/* 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);
|
|
|
|
|
|
/* Find any sections not attatched explicitly and handle them */
|
|
lang_place_orphans ();
|
|
|
|
/* Size up the common data */
|
|
lang_common ();
|
|
|
|
ldemul_before_allocation ();
|
|
|
|
|
|
#if 0
|
|
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;
|
|
|
|
}
|
|
#endif
|
|
|
|
/* 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,
|
|
(lang_output_section_statement_type *) NULL,
|
|
&(statement_list.head), 0, (bfd_vma) 0, false);
|
|
|
|
|
|
|
|
/* Move the global symbols around so the second pass of relaxing can
|
|
see them */
|
|
lang_relocate_globals ();
|
|
|
|
reset_memory_regions ();
|
|
|
|
/* Do all the assignments, now that we know the final restingplaces
|
|
of all the symbols */
|
|
|
|
lang_do_assignments (statement_list.head,
|
|
abs_output_section,
|
|
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,
|
|
(lang_output_section_statement_type *) NULL,
|
|
&(statement_list.head), 0, (bfd_vma) 0, true);
|
|
|
|
|
|
|
|
}
|
|
|
|
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,
|
|
0, (bfd_vma) 0);
|
|
|
|
|
|
/* Move the global symbols around */
|
|
lang_relocate_globals ();
|
|
|
|
/* Make sure that we're not mixing architectures */
|
|
|
|
lang_check ();
|
|
|
|
/* Final stuffs */
|
|
lang_finish ();
|
|
}
|
|
|
|
/* EXPORTED TO YACC */
|
|
|
|
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);
|
|
|
|
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;
|
|
}
|
|
|
|
void
|
|
DEFUN (lang_add_entry, (name),
|
|
CONST char *name)
|
|
{
|
|
entry_symbol = name;
|
|
}
|
|
|
|
void
|
|
DEFUN (lang_add_target, (name),
|
|
CONST char *name)
|
|
{
|
|
lang_target_statement_type *new = new_stat (lang_target_statement,
|
|
stat_ptr);
|
|
|
|
new->target = name;
|
|
|
|
}
|
|
|
|
void
|
|
DEFUN (lang_add_map, (name),
|
|
CONST char *name)
|
|
{
|
|
while (*name)
|
|
{
|
|
switch (*name)
|
|
{
|
|
case 'F':
|
|
map_option_f = true;
|
|
break;
|
|
}
|
|
name++;
|
|
}
|
|
}
|
|
|
|
void
|
|
DEFUN (lang_add_fill, (exp),
|
|
int exp)
|
|
{
|
|
lang_fill_statement_type *new = new_stat (lang_fill_statement,
|
|
stat_ptr);
|
|
|
|
new->fill = exp;
|
|
}
|
|
|
|
void
|
|
DEFUN (lang_add_data, (type, exp),
|
|
int type AND
|
|
union etree_union *exp)
|
|
{
|
|
|
|
lang_data_statement_type *new = new_stat (lang_data_statement,
|
|
stat_ptr);
|
|
|
|
new->exp = exp;
|
|
new->type = type;
|
|
|
|
}
|
|
|
|
void
|
|
DEFUN (lang_add_assignment, (exp),
|
|
etree_type * exp)
|
|
{
|
|
lang_assignment_statement_type *new = new_stat (lang_assignment_statement,
|
|
stat_ptr);
|
|
|
|
new->exp = exp;
|
|
}
|
|
|
|
void
|
|
DEFUN (lang_add_attribute, (attribute),
|
|
enum statement_enum attribute)
|
|
{
|
|
new_statement (attribute, sizeof (lang_statement_union_type), stat_ptr);
|
|
}
|
|
|
|
void
|
|
DEFUN (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;
|
|
|
|
startup_file = name;
|
|
}
|
|
|
|
void
|
|
DEFUN (lang_float, (maybe),
|
|
boolean maybe)
|
|
{
|
|
lang_float_flag = maybe;
|
|
}
|
|
|
|
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;
|
|
|
|
/* 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;
|
|
|
|
}
|
|
}
|
|
|
|
/*
|
|
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
|
|
DEFUN (lang_abs_symbol_at_beginning_of, (section, name),
|
|
CONST char *section AND
|
|
CONST char *name)
|
|
{
|
|
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);
|
|
|
|
if (s != (asection *) NULL)
|
|
{
|
|
def->value = s->vma;
|
|
}
|
|
else
|
|
{
|
|
def->value = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
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_abs_symbol_at_end_of, (section, name),
|
|
CONST char *section AND
|
|
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);
|
|
|
|
if (s != (asection *) NULL)
|
|
{
|
|
def->value = s->vma + s->_raw_size;
|
|
}
|
|
else
|
|
{
|
|
def->value = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
/* Set the output format type */
|
|
void
|
|
DEFUN (lang_add_output_format, (format),
|
|
CONST char *format)
|
|
{
|
|
output_target = format;
|
|
}
|