1999-05-03 09:29:11 +02:00
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/* ldlang.h - linker command language support
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2001-03-13 07:14:29 +01:00
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Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
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2001
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1999-06-12 23:24:56 +02:00
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Free Software Foundation, Inc.
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2000-09-29 15:21:41 +02:00
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1999-05-03 09:29:11 +02:00
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This file is part of GLD, the Gnu Linker.
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2000-09-29 15:21:41 +02:00
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1999-05-03 09:29:11 +02:00
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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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2000-09-29 15:21:41 +02:00
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1999-05-03 09:29:11 +02:00
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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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2000-09-29 15:21:41 +02:00
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1999-05-03 09:29:11 +02:00
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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 the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#ifndef LDLANG_H
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#define LDLANG_H
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2000-10-09 17:09:17 +02:00
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typedef enum {
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1999-05-03 09:29:11 +02:00
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lang_input_file_is_l_enum,
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lang_input_file_is_symbols_only_enum,
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lang_input_file_is_marker_enum,
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lang_input_file_is_fake_enum,
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lang_input_file_is_search_file_enum,
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lang_input_file_is_file_enum
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} lang_input_file_enum_type;
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typedef unsigned int fill_type;
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2000-10-09 17:09:17 +02:00
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typedef struct statement_list {
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1999-05-03 09:29:11 +02:00
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union lang_statement_union *head;
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union lang_statement_union **tail;
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} lang_statement_list_type;
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2000-10-09 17:09:17 +02:00
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typedef struct memory_region_struct {
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1999-05-03 09:29:11 +02:00
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char *name;
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struct memory_region_struct *next;
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bfd_vma origin;
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bfd_size_type length;
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bfd_vma current;
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bfd_size_type old_length;
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flagword flags;
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flagword not_flags;
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boolean had_full_message;
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2000-10-09 17:09:17 +02:00
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} lang_memory_region_type;
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typedef struct lang_statement_header_struct {
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union lang_statement_union *next;
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enum statement_enum {
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lang_output_section_statement_enum,
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lang_assignment_statement_enum,
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lang_input_statement_enum,
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lang_address_statement_enum,
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lang_wild_statement_enum,
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lang_input_section_enum,
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lang_object_symbols_statement_enum,
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lang_fill_statement_enum,
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lang_data_statement_enum,
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lang_reloc_statement_enum,
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lang_target_statement_enum,
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lang_output_statement_enum,
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lang_padding_statement_enum,
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lang_group_statement_enum,
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lang_afile_asection_pair_statement_enum,
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lang_constructors_statement_enum
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} type;
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1999-05-03 09:29:11 +02:00
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} lang_statement_header_type;
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2000-10-09 17:09:17 +02:00
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typedef struct {
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1999-05-03 09:29:11 +02:00
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lang_statement_header_type header;
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union etree_union *exp;
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} lang_assignment_statement_type;
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2000-10-09 17:09:17 +02:00
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typedef struct lang_target_statement_struct {
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1999-05-03 09:29:11 +02:00
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lang_statement_header_type header;
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const char *target;
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} lang_target_statement_type;
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2000-10-09 17:09:17 +02:00
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typedef struct lang_output_statement_struct {
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1999-05-03 09:29:11 +02:00
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lang_statement_header_type header;
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const char *name;
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} lang_output_statement_type;
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/* Section types specified in a linker script. */
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2000-10-09 17:09:17 +02:00
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enum section_type {
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1999-05-03 09:29:11 +02:00
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normal_section,
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dsect_section,
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copy_section,
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noload_section,
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info_section,
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overlay_section
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};
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/* This structure holds a list of program headers describing segments
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in which this section should be placed. */
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2000-10-09 17:09:17 +02:00
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struct lang_output_section_phdr_list {
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1999-05-03 09:29:11 +02:00
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struct lang_output_section_phdr_list *next;
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const char *name;
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boolean used;
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};
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2000-10-09 17:09:17 +02:00
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typedef struct lang_output_section_statement_struct {
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1999-05-03 09:29:11 +02:00
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lang_statement_header_type header;
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union etree_union *addr_tree;
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lang_statement_list_type children;
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const char *memspec;
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union lang_statement_union *next;
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const char *name;
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boolean processed;
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2000-09-29 15:21:41 +02:00
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1999-05-03 09:29:11 +02:00
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asection *bfd_section;
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flagword flags; /* Or together of all input sections */
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enum section_type sectype;
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struct memory_region_struct *region;
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2000-02-16 19:53:32 +01:00
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struct memory_region_struct *lma_region;
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1999-05-03 09:29:11 +02:00
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size_t block_value;
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fill_type fill;
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2000-10-09 17:09:17 +02:00
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int subsection_alignment; /* alignment of components */
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int section_alignment; /* alignment of start of section */
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1999-05-03 09:29:11 +02:00
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union etree_union *load_base;
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struct lang_output_section_phdr_list *phdrs;
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} lang_output_section_statement_type;
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2000-10-09 17:09:17 +02:00
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typedef struct {
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1999-05-03 09:29:11 +02:00
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lang_statement_header_type header;
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} lang_common_statement_type;
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2000-10-09 17:09:17 +02:00
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typedef struct {
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1999-05-03 09:29:11 +02:00
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lang_statement_header_type header;
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} lang_object_symbols_statement_type;
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2000-10-09 17:09:17 +02:00
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typedef struct {
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1999-05-03 09:29:11 +02:00
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lang_statement_header_type header;
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fill_type fill;
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int size;
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asection *output_section;
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} lang_fill_statement_type;
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2000-10-09 17:09:17 +02:00
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typedef struct {
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1999-05-03 09:29:11 +02:00
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lang_statement_header_type header;
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unsigned int type;
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2000-10-09 17:09:17 +02:00
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union etree_union *exp;
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1999-05-03 09:29:11 +02:00
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bfd_vma value;
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asection *output_section;
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bfd_vma output_vma;
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} lang_data_statement_type;
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/* Generate a reloc in the output file. */
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2000-10-09 17:09:17 +02:00
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typedef struct {
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1999-05-03 09:29:11 +02:00
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lang_statement_header_type header;
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/* Reloc to generate. */
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bfd_reloc_code_real_type reloc;
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/* Reloc howto structure. */
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reloc_howto_type *howto;
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/* Section to generate reloc against. Exactly one of section and
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name must be NULL. */
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asection *section;
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/* Name of symbol to generate reloc against. Exactly one of section
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and name must be NULL. */
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const char *name;
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/* Expression for addend. */
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union etree_union *addend_exp;
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/* Resolved addend. */
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bfd_vma addend_value;
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/* Output section where reloc should be performed. */
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asection *output_section;
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/* VMA within output section. */
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bfd_vma output_vma;
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} lang_reloc_statement_type;
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2000-10-09 17:09:17 +02:00
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typedef struct lang_input_statement_struct {
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1999-05-03 09:29:11 +02:00
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lang_statement_header_type header;
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/* Name of this file. */
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const char *filename;
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/* Name to use for the symbol giving address of text start */
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/* Usually the same as filename, but for a file spec'd with -l
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this is the -l switch itself rather than the filename. */
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const char *local_sym_name;
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2000-09-29 15:21:41 +02:00
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1999-05-03 09:29:11 +02:00
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bfd *the_bfd;
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2000-09-29 15:21:41 +02:00
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1999-05-03 09:29:11 +02:00
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boolean closed;
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file_ptr passive_position;
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2000-09-29 15:21:41 +02:00
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1999-05-03 09:29:11 +02:00
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/* Symbol table of the file. */
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asymbol **asymbols;
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unsigned int symbol_count;
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2000-09-29 15:21:41 +02:00
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1999-05-03 09:29:11 +02:00
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/* Point to the next file - whatever it is, wanders up and down
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archives */
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2000-09-29 15:21:41 +02:00
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2000-10-09 17:09:17 +02:00
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union lang_statement_union *next;
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1999-05-03 09:29:11 +02:00
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/* Point to the next file, but skips archive contents */
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2000-10-09 17:09:17 +02:00
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union lang_statement_union *next_real_file;
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2000-09-29 15:21:41 +02:00
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1999-05-03 09:29:11 +02:00
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boolean is_archive;
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2000-09-29 15:21:41 +02:00
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1999-05-03 09:29:11 +02:00
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/* 1 means search a set of directories for this file. */
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boolean search_dirs_flag;
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2000-09-29 15:21:41 +02:00
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1999-05-03 09:29:11 +02:00
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/* 1 means this is base file of incremental load.
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Do not load this file's text or data.
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2000-09-29 15:21:41 +02:00
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Also default text_start to after this file's bss. */
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1999-05-03 09:29:11 +02:00
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boolean just_syms_flag;
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/* Whether to search for this entry as a dynamic archive. */
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boolean dynamic;
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/* Whether to include the entire contents of an archive. */
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boolean whole_archive;
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boolean loaded;
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2000-09-29 15:21:41 +02:00
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2000-10-09 17:09:17 +02:00
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#if 0
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unsigned int globals_in_this_file;
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#endif
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1999-05-03 09:29:11 +02:00
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const char *target;
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boolean real;
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} lang_input_statement_type;
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2000-10-09 17:09:17 +02:00
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typedef struct {
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1999-05-03 09:29:11 +02:00
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lang_statement_header_type header;
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asection *section;
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lang_input_statement_type *ifile;
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2000-09-29 15:21:41 +02:00
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} lang_input_section_type;
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1999-05-03 09:29:11 +02:00
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2000-10-09 17:09:17 +02:00
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typedef struct {
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1999-05-03 09:29:11 +02:00
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lang_statement_header_type header;
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asection *section;
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union lang_statement_union *file;
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} lang_afile_asection_pair_statement_type;
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2000-10-09 17:09:17 +02:00
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typedef struct lang_wild_statement_struct {
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1999-05-03 09:29:11 +02:00
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lang_statement_header_type header;
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const char *filename;
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boolean filenames_sorted;
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2001-08-03 03:11:21 +02:00
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struct wildcard_list *section_list;
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1999-05-03 09:29:11 +02:00
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boolean keep_sections;
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lang_statement_list_type children;
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} lang_wild_statement_type;
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2000-10-09 17:09:17 +02:00
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typedef struct lang_address_statement_struct {
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1999-05-03 09:29:11 +02:00
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lang_statement_header_type header;
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2000-10-09 17:09:17 +02:00
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const char *section_name;
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union etree_union *address;
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1999-05-03 09:29:11 +02:00
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} lang_address_statement_type;
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2000-10-09 17:09:17 +02:00
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typedef struct {
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1999-05-03 09:29:11 +02:00
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lang_statement_header_type header;
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bfd_vma output_offset;
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size_t size;
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asection *output_section;
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fill_type fill;
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} lang_padding_statement_type;
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/* A group statement collects a set of libraries together. The
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libraries are searched multiple times, until no new undefined
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symbols are found. The effect is to search a group of libraries as
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though they were a single library. */
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2000-10-09 17:09:17 +02:00
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typedef struct {
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1999-05-03 09:29:11 +02:00
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lang_statement_header_type header;
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lang_statement_list_type children;
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} lang_group_statement_type;
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2000-10-09 17:09:17 +02:00
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typedef union lang_statement_union {
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1999-05-03 09:29:11 +02:00
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lang_statement_header_type header;
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union lang_statement_union *next;
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lang_wild_statement_type wild_statement;
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lang_data_statement_type data_statement;
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lang_reloc_statement_type reloc_statement;
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lang_address_statement_type address_statement;
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lang_output_section_statement_type output_section_statement;
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lang_afile_asection_pair_statement_type afile_asection_pair_statement;
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lang_assignment_statement_type assignment_statement;
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lang_input_statement_type input_statement;
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lang_target_statement_type target_statement;
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lang_output_statement_type output_statement;
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lang_input_section_type input_section;
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lang_common_statement_type common_statement;
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lang_object_symbols_statement_type object_symbols_statement;
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lang_fill_statement_type fill_statement;
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lang_padding_statement_type padding_statement;
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lang_group_statement_type group_statement;
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} lang_statement_union_type;
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/* This structure holds information about a program header, from the
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PHDRS command in the linker script. */
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2000-10-09 17:09:17 +02:00
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struct lang_phdr {
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1999-05-03 09:29:11 +02:00
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struct lang_phdr *next;
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const char *name;
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unsigned long type;
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boolean filehdr;
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boolean phdrs;
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etree_type *at;
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etree_type *flags;
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};
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/* This structure is used to hold a list of sections which may not
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cross reference each other. */
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2000-10-09 17:09:17 +02:00
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struct lang_nocrossref {
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1999-05-03 09:29:11 +02:00
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struct lang_nocrossref *next;
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const char *name;
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};
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/* The list of nocrossref lists. */
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2000-10-09 17:09:17 +02:00
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struct lang_nocrossrefs {
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1999-05-03 09:29:11 +02:00
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struct lang_nocrossrefs *next;
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struct lang_nocrossref *list;
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};
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extern struct lang_nocrossrefs *nocrossref_list;
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2001-01-14 05:36:35 +01:00
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/* This structure is used to hold a list of input section names which
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|
will not match an output section in the linker script. */
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struct unique_sections {
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struct unique_sections *next;
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const char *name;
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};
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extern struct unique_sections *unique_section_list;
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1999-05-03 09:29:11 +02:00
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extern lang_output_section_statement_type *abs_output_section;
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2000-04-25 07:14:16 +02:00
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extern lang_statement_list_type lang_output_section_statement;
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1999-05-03 09:29:11 +02:00
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extern boolean lang_has_input_file;
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extern etree_type *base;
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extern lang_statement_list_type *stat_ptr;
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extern boolean delete_output_file_on_failure;
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extern const char *entry_symbol;
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extern boolean entry_from_cmdline;
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2000-07-11 05:42:41 +02:00
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|
extern lang_statement_list_type file_chain;
|
1999-05-03 09:29:11 +02:00
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extern void lang_init PARAMS ((void));
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extern struct memory_region_struct *lang_memory_region_lookup
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PARAMS ((const char *const));
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extern struct memory_region_struct *lang_memory_region_default
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PARAMS ((asection *));
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|
extern void lang_map PARAMS ((void));
|
1999-06-12 23:24:56 +02:00
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|
extern void lang_set_flags PARAMS ((lang_memory_region_type *, const char *,
|
|
|
|
int));
|
1999-05-03 09:29:11 +02:00
|
|
|
extern void lang_add_output PARAMS ((const char *, int from_script));
|
2000-04-25 07:14:16 +02:00
|
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|
extern lang_output_section_statement_type *lang_enter_output_section_statement
|
1999-05-03 09:29:11 +02:00
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|
PARAMS ((const char *output_section_statement_name,
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|
|
etree_type * address_exp,
|
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|
|
enum section_type sectype,
|
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|
|
bfd_vma block_value,
|
|
|
|
etree_type *align,
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|
|
etree_type *subalign,
|
|
|
|
etree_type *));
|
|
|
|
extern void lang_final PARAMS ((void));
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|
|
extern void lang_process PARAMS ((void));
|
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|
|
extern void lang_section_start PARAMS ((const char *, union etree_union *));
|
|
|
|
extern void lang_add_entry PARAMS ((const char *, boolean));
|
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|
|
extern void lang_add_target PARAMS ((const char *));
|
|
|
|
extern void lang_add_wild
|
2001-08-03 03:11:21 +02:00
|
|
|
PARAMS ((struct wildcard_spec *, struct wildcard_list *, boolean));
|
1999-05-03 09:29:11 +02:00
|
|
|
extern void lang_add_map PARAMS ((const char *));
|
|
|
|
extern void lang_add_fill PARAMS ((int));
|
|
|
|
extern lang_assignment_statement_type * lang_add_assignment PARAMS ((union etree_union *));
|
|
|
|
extern void lang_add_attribute PARAMS ((enum statement_enum));
|
|
|
|
extern void lang_startup PARAMS ((const char *));
|
|
|
|
extern void lang_float PARAMS ((enum bfd_boolean));
|
|
|
|
extern void lang_leave_output_section_statement
|
2000-02-16 19:53:32 +01:00
|
|
|
PARAMS ((bfd_vma, const char *, struct lang_output_section_phdr_list *,
|
|
|
|
const char *));
|
1999-05-03 09:29:11 +02:00
|
|
|
extern void lang_abs_symbol_at_end_of PARAMS ((const char *, const char *));
|
|
|
|
extern void lang_abs_symbol_at_beginning_of PARAMS ((const char *,
|
|
|
|
const char *));
|
|
|
|
extern void lang_statement_append PARAMS ((struct statement_list *,
|
|
|
|
union lang_statement_union *,
|
|
|
|
union lang_statement_union **));
|
|
|
|
extern void lang_for_each_input_file
|
|
|
|
PARAMS ((void (*dothis) (lang_input_statement_type *)));
|
|
|
|
extern void lang_for_each_file
|
|
|
|
PARAMS ((void (*dothis) (lang_input_statement_type *)));
|
|
|
|
extern bfd_vma lang_do_assignments
|
|
|
|
PARAMS ((lang_statement_union_type * s,
|
|
|
|
lang_output_section_statement_type *output_section_statement,
|
|
|
|
fill_type fill,
|
|
|
|
bfd_vma dot));
|
|
|
|
|
|
|
|
#define LANG_FOR_EACH_INPUT_STATEMENT(statement) \
|
|
|
|
lang_input_statement_type *statement; \
|
|
|
|
for (statement = (lang_input_statement_type *)file_chain.head;\
|
|
|
|
statement != (lang_input_statement_type *)NULL; \
|
|
|
|
statement = (lang_input_statement_type *)statement->next)\
|
2000-09-29 15:21:41 +02:00
|
|
|
|
1999-05-03 09:29:11 +02:00
|
|
|
extern void lang_process PARAMS ((void));
|
|
|
|
extern void ldlang_add_file PARAMS ((lang_input_statement_type *));
|
|
|
|
extern lang_output_section_statement_type *lang_output_section_find
|
|
|
|
PARAMS ((const char * const));
|
|
|
|
extern lang_input_statement_type *lang_add_input_file
|
|
|
|
PARAMS ((const char *name, lang_input_file_enum_type file_type,
|
|
|
|
const char *target));
|
|
|
|
extern void lang_add_keepsyms_file PARAMS ((const char *filename));
|
|
|
|
extern lang_output_section_statement_type *
|
|
|
|
lang_output_section_statement_lookup PARAMS ((const char * const name));
|
|
|
|
extern void ldlang_add_undef PARAMS ((const char *const name));
|
|
|
|
extern void lang_add_output_format PARAMS ((const char *, const char *,
|
|
|
|
const char *, int from_script));
|
|
|
|
extern void lang_list_init PARAMS ((lang_statement_list_type*));
|
|
|
|
extern void lang_add_data PARAMS ((int type, union etree_union *));
|
|
|
|
extern void lang_add_reloc
|
|
|
|
PARAMS ((bfd_reloc_code_real_type reloc, reloc_howto_type *howto,
|
|
|
|
asection *section, const char *name, union etree_union *addend));
|
|
|
|
extern void lang_for_each_statement
|
|
|
|
PARAMS ((void (*func) (lang_statement_union_type *)));
|
|
|
|
extern PTR stat_alloc PARAMS ((size_t size));
|
|
|
|
extern void dprint_statement PARAMS ((lang_statement_union_type *, int));
|
|
|
|
extern bfd_vma lang_size_sections
|
|
|
|
PARAMS ((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));
|
|
|
|
extern void lang_enter_group PARAMS ((void));
|
|
|
|
extern void lang_leave_group PARAMS ((void));
|
2001-08-14 04:01:31 +02:00
|
|
|
extern void lang_add_section
|
1999-05-03 09:29:11 +02:00
|
|
|
PARAMS ((lang_statement_list_type *ptr, asection *section,
|
|
|
|
lang_output_section_statement_type *output,
|
|
|
|
lang_input_statement_type *file));
|
|
|
|
extern void lang_new_phdr
|
|
|
|
PARAMS ((const char *, etree_type *, boolean, boolean, etree_type *,
|
|
|
|
etree_type *));
|
|
|
|
extern void lang_add_nocrossref PARAMS ((struct lang_nocrossref *));
|
|
|
|
extern void lang_enter_overlay PARAMS ((etree_type *, etree_type *, int));
|
|
|
|
extern void lang_enter_overlay_section PARAMS ((const char *));
|
|
|
|
extern void lang_leave_overlay_section
|
|
|
|
PARAMS ((bfd_vma, struct lang_output_section_phdr_list *));
|
|
|
|
extern void lang_leave_overlay
|
2000-02-16 19:53:32 +01:00
|
|
|
PARAMS ((bfd_vma, const char *, struct lang_output_section_phdr_list *,
|
|
|
|
const char *));
|
1999-05-03 09:29:11 +02:00
|
|
|
|
|
|
|
extern struct bfd_elf_version_tree *lang_elf_version_info;
|
|
|
|
|
|
|
|
extern struct bfd_elf_version_expr *lang_new_vers_regex
|
|
|
|
PARAMS ((struct bfd_elf_version_expr *, const char *, const char *));
|
|
|
|
extern struct bfd_elf_version_tree *lang_new_vers_node
|
|
|
|
PARAMS ((struct bfd_elf_version_expr *, struct bfd_elf_version_expr *));
|
|
|
|
extern struct bfd_elf_version_deps *lang_add_vers_depend
|
|
|
|
PARAMS ((struct bfd_elf_version_deps *, const char *));
|
|
|
|
extern void lang_register_vers_node
|
|
|
|
PARAMS ((const char *, struct bfd_elf_version_tree *,
|
|
|
|
struct bfd_elf_version_deps *));
|
2001-01-14 05:36:35 +01:00
|
|
|
boolean unique_section_p PARAMS ((const char *));
|
|
|
|
extern void lang_add_unique PARAMS ((const char *));
|
1999-05-03 09:29:11 +02:00
|
|
|
|
|
|
|
#endif
|