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348 lines
10 KiB
C
348 lines
10 KiB
C
/* ldlang.h -
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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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typedef enum {
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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 } lang_input_file_enum_type;
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typedef unsigned short fill_type;
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typedef struct statement_list {
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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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typedef struct {
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boolean flag_read;
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boolean flag_write;
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boolean flag_executable;
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boolean flag_loadable;
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} lang_section_flags_type;
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typedef struct memory_region_struct {
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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_offset length;
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bfd_vma current;
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lang_section_flags_type flags;
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} lang_memory_region_type ;
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typedef struct lang_statement_header_struct
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{
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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_common_statement_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_target_statement_enum,
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lang_output_statement_enum,
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lang_padding_statement_enum,
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lang_afile_asection_pair_statement_enum
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} type;
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} lang_statement_header_type;
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typedef struct
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{
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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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typedef struct lang_target_statement_struct {
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lang_statement_header_type header;
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char *target;
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} lang_target_statement_type;
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typedef struct lang_output_statement_struct {
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lang_statement_header_type header;
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char *name;
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} lang_output_statement_type;
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typedef struct lang_output_section_statement_struct
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{
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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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char *memspec;
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union lang_statement_union *next;
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char *name;
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unsigned long subsection_alignment;
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boolean processed;
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asection *bfd_section;
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lang_section_flags_type flags;
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struct memory_region_struct *region;
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size_t block_value;
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fill_type fill;
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} lang_output_section_statement_type;
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typedef struct {
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lang_statement_header_type header;
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} lang_common_statement_type;
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typedef struct {
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lang_statement_header_type header;
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} lang_object_symbols_statement_type;
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typedef struct {
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lang_statement_header_type header;
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fill_type fill;
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} lang_fill_statement_type;
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typedef struct {
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lang_statement_header_type header;
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unsigned int type;
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union etree_union *exp;
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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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typedef struct lang_input_statement_struct
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{
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lang_statement_header_type header;
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/* Name of this file. */
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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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char *local_sym_name;
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/* Describe the layout of the contents of the file */
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/* The file's a.out header. */
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/* struct exec header;*/
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/* Offset in file of GDB symbol segment, or 0 if there is none. */
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int symseg_offset;
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/* Describe data from the file loaded into core */
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bfd *the_bfd;
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boolean closed;
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file_ptr passive_position;
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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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/* Next two used only if `relocatable_output' or if needed for */
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/* output of undefined reference line numbers. */
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/* Text reloc info saved by `write_text' for `coptxtrel'. */
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/* Offset in bytes in the output file symbol table
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of the first local symbol for this file. Set by `write_file_symbols'. */
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int local_syms_offset;
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/* For library members only */
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/* For a library, points to chain of entries for the library members. */
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struct lang_input_statement_struct *subfiles;
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/* For a library member, offset of the member within the archive.
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Zero for files that are not library members. */
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/* int starting_offset;*/
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/* Size of contents of this file, if library member. */
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int total_size;
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/* For library member, points to the library's own entry. */
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struct lang_input_statement_struct *superfile;
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/* For library member, points to next entry for next member. */
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struct lang_input_statement_struct *chain;
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/* Point to the next file - whatever it is, wanders up and down archives */
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union lang_statement_union *next;
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/* Point to the next file, but skips archive contents */
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union lang_statement_union *next_real_file;
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boolean is_archive;
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/* 1 if file's header has been read into this structure. */
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boolean header_read_flag;
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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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/* 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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Also default text_start to after this file's bss. */
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boolean just_syms_flag;
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boolean loaded;
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/* unsigned int globals_in_this_file;*/
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char *target;
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boolean real;
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asection *common_section;
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asection *common_output_section;
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} lang_input_statement_type;
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typedef struct {
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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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} lang_input_section_type;
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typedef struct {
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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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typedef struct lang_wild_statement_struct {
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lang_statement_header_type header;
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char *section_name;
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char *filename;
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lang_statement_list_type children;
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} lang_wild_statement_type;
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typedef struct lang_address_statement_struct {
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lang_statement_header_type header;
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char *section_name;
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union etree_union *address;
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} lang_address_statement_type;
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typedef struct {
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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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typedef union lang_statement_union
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{
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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_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_statement_union_type;
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PROTO(void,lang_init,(void));
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PROTO(struct memory_region_struct ,*lang_memory_region_lookup,(char *));
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PROTO(struct lang_output_section_statement_struct *,lang_output_section_find,(char *));
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PROTO(void ,lang_map,(struct _iobuf *));
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PROTO(void,lang_set_flags,(lang_section_flags_type *, char *));
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PROTO(void,lang_add_output,(char *));
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PROTO(void,lang_final,(void));
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PROTO(struct symbol_cache_entry *,create_symbol,(char *, unsigned int, struct sec_struct *));
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PROTO(void ,lang_process,(void));
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PROTO(void ,lang_section_start,(char *, union etree_union *));
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PROTO(void,lang_add_entry,(char *));
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PROTO(void,lang_add_target,(char *));
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PROTO(void,lang_add_wild,(char *, char *));
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PROTO(void,lang_add_map,(char *));
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PROTO(void,lang_add_fill,(int));
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PROTO(void,lang_add_assignment,(union etree_union *));
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PROTO(void,lang_add_attribute,(enum statement_enum));
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PROTO(void,lang_startup,(char *));
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PROTO(void,lang_float,(enum boolean));
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PROTO(void,lang_leave_output_section_statement,(bfd_vma, char *));
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PROTO(void,lang_abs_symbol_at_end_of,(char *, char *));
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PROTO(void,lang_statement_append,(struct statement_list *, union lang_statement_union *, union lang_statement_union **));
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PROTO(void, lang_for_each_file,(void (*dothis)(lang_input_statement_type *)));
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#define LANG_FOR_EACH_ASYMBOL(asymbol) \
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#define LANG_FOR_EACH_INPUT_STATEMENT(statement) \
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extern lang_statement_list_type file_chain; \
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lang_input_statement_type *statement; \
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for (statement = (lang_input_statement_type *)file_chain.head;\
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statement != (lang_input_statement_type *)NULL; \
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statement = (lang_input_statement_type *)statement->next)\
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#define LANG_FOR_EACH_INPUT_SECTION(statement, abfd, section, x) \
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{ extern lang_statement_list_type file_chain; \
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lang_input_statement_type *statement; \
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for (statement = (lang_input_statement_type *)file_chain.head;\
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statement != (lang_input_statement_type *)NULL; \
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statement = (lang_input_statement_type *)statement->next)\
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{ \
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asection *section; \
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bfd *abfd = statement->the_bfd; \
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for (section = abfd->sections; \
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section != (asection *)NULL; \
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section = section->next) { \
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x; \
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} \
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} \
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}
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#define LANG_FOR_EACH_OUTPUT_SECTION(section, x) \
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{ extern bfd *output_bfd; \
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asection *section; \
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for (section = output_bfd->sections; \
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section != (asection *)NULL; \
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section = section->next) \
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{ x; } \
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}
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PROTO(void, lang_process,(void));
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PROTO(void, ldlang_add_file,(lang_input_statement_type *));
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PROTO(lang_output_section_statement_type *,lang_output_section_find,());
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PROTO(lang_input_statement_type *,
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lang_add_input_file,(char *name,
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lang_input_file_enum_type file_type,
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char *target));
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PROTO(lang_output_section_statement_type *,
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lang_output_section_statement_lookup,(char *name));
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