1999-05-03 09:29:11 +02:00
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/* obj-aout.h, a.out object file format for gas, the assembler.
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2002-09-05 02:01:18 +02:00
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Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 2000,
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2005-03-01 01:43:58 +01:00
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2002, 2003, 2005 Free Software Foundation, Inc.
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1999-05-03 09:29:11 +02:00
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This file is part of GAS, the GNU Assembler.
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GAS 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
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published by the Free Software Foundation; either version 2,
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or (at your option) any later version.
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GAS is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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the 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 GAS; see the file COPYING. If not, write to the Free
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2005-05-05 11:13:19 +02:00
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Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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1999-05-03 09:29:11 +02:00
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/* Tag to validate a.out object file format processing */
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#define OBJ_AOUT 1
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#include "targ-cpu.h"
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#include "bfd/libaout.h"
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#define OUTPUT_FLAVOR bfd_target_aout_flavour
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2000-01-26 23:48:31 +01:00
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extern const pseudo_typeS aout_pseudo_table[];
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#ifndef obj_pop_insert
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#define obj_pop_insert() pop_insert (aout_pseudo_table)
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#endif
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2005-03-24 21:40:28 +01:00
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/* Symbol table entry data type. */
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1999-05-03 09:29:11 +02:00
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2005-03-24 21:40:28 +01:00
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typedef struct nlist obj_symbol_type; /* Symbol table entry. */
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1999-05-03 09:29:11 +02:00
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/* Symbol table macros and constants */
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Add support for storing local symbols in a small structure to save
memory when assembling large files.
* as.h: Don't include struc-symbol.h.
(symbolS): Add typedef.
* symbols.c: Include struc-symbol.h.
(local_hash): New static variable.
(save_symbol_name): New static function, from symbol_create.
(symbol_create): Call save_symbol_name.
(local_symbol_count): New static variable.
(local_symbol_conversion_count): Likewise.
(LOCAL_SYMBOL_CHECK): Define.
(local_symbol_make): New static function.
(local_symbol_convert): New static function.
(colon): Handle local symbols. Create local symbol for local
label name.
(symbol_table_insert): Handle local symbols.
(symbol_find_or_make): Create local symbol for local label name.
(symbol_find_base): Check for local symbol.
(symbol_append, symbol_insert): Check for local symbols.
(symbol_clear_list_pointers, symbol_remove): Likewise.
(verify_symbol_chain): Likewise.
(copy_symbol_attributes): Likewise.
(resolve_symbol_value): Handle local symbols.
(resolve_local_symbol): New static function.
(resolve_local_symbol_values): New function.
(S_GET_VALUE, S_SET_VALUE): Handle local symbols.
(S_IS_FUNCTION, S_IS_EXTERNAL, S_IS_WEAK, S_IS_COMMON): Likewise.
(S_IS_DEFINED, S_IS_DEBUG, S_IS_LOCAL, S_GET_NAME): Likewise.
(S_GET_SEGMENT, S_SET_SEGMENT, S_SET_EXTERNAL): Likewise.
(S_CLEAR_EXTERNAL, S_SET_WEAK, S_SET_NAME): Likewise.
(symbol_previous, symbol_next): New functions.
(symbol_get_value_expression): Likewise.
(symbol_set_value_expression): Likewise.
(symbol_set_frag, symbol_get_frag): Likewise.
(symbol_mark_used, symbol_clear_used, symbol_used_p): Likewise.
(symbol_mark_used_in_reloc): Likewise.
(symbol_clear_used_in_reloc, symbol_used_in_reloc_p): Likewise.
(symbol_mark_mri_common, symbol_clear_mri_common): Likewise.
(symbol_mri_common_p): Likewise.
(symbol_mark_written, symbol_clear_written): Likewise.
(symbol_written_p): Likewise.
(symbol_mark_resolved, symbol_resolved_p): Likewise.
(symbol_section_p, symbol_equated_p): Likewise.
(symbol_constant_p): Likewise.
(symbol_get_bfdsym, symbol_set_bfdsym): Likewise.
(symbol_get_obj, symbol_set_obj): Likewise.
(symbol_get_tc, symbol_set_tc): Likewise.
(symbol_begin): Initialize local_hash.
(print_symbol_value_1): Handle local symbols.
(symbol_print_statistics): Print local symbol statistics.
* symbols.h: Include "struc-symbol.h" if not BFD_ASSEMBLER.
Declare new symbols.c functions. Move many declarations here from
struc-symbol.h.
(SYMBOLS_NEED_BACKPOINTERS): Define if needed.
* struc-symbol.h (SYMBOLS_NEED_BACKPOINTERS): Don't set.
(struct symbol): Move bsym to make it clearly the first field.
Remove TARGET_SYMBOL_FIELDS.
(symbolS): Don't typedef.
(struct broken_word): Remove.
(N_TYPE_seg, seg_N_TYPE): Move to symbol.h.
(SEGMENT_TO_SYMBOL_TYPE, N_REGISTER): Likewise.
(symbol_clear_list_pointers): Likewise.
(symbol_insert, symbol_remove): Likewise.
(symbol_previous, symbol_append): Likewise.
(verify_symbol_chain, verify_symbol_chain_2): Likewise.
(struct local_symbol): Define.
(local_symbol_converted_p, local_symbol_mark_converted): Define.
(local_symbol_resolved_p, local_symbol_mark_resolved): Define.
(local_symbol_get_frag, local_symbol_set_frag): Define.
(local_symbol_get_real_symbol): Define.
(local_symbol_set_real_symbol): Define.
Define.
* write.c (write_object_file): Call resolve_local_symbol_values.
* config/obj-ecoff.h (OBJ_SYMFIELD_TYPE): Define.
(TARGET_SYMBOL_FIELDS): Don't define.
* config/obj-elf.h (OBJ_SYMFIELD_TYPE): Add local field. If
ECOFF_DEBUGGING, add ECOFF fields.
(ELF_TARGET_SYMBOL_FIELDS, TARGET_SYMBOL_FIELDS): Don't define.
* config/obj-multi.h (struct elf_obj_sy): Add local field. If
ECOFF_DEBUGGING, add ECOFF fields.
(ELF_TARGET_SYMBOL_FIELDS, TARGET_SYMBOL_FIELDS): Don't define.
(ECOFF_DEBUG_TARGET_SYMBOL_FIELDS): Don't define.
* config/tc-mcore.h: Don't include struc-symbol.h.
(TARGET_SYMBOL_FIELDS): Don't define.
(struct mcore_tc_sy): Define.
(TC_SYMFIELD_TYPE): Define.
* Many files: Use symbolS instead of struct symbol. Use new
accessor functions rather than referring to symbolS fields
directly.
* read.c (s_mri_common): Don't add in value of line_label.
* config/tc-mips.c (md_apply_fix): Correct parenthesization when
checking for SEC_LINK_ONCE.
* config/tc-sh.h (sh_fix_adjustable): Declare.
1999-06-03 02:29:48 +02:00
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#define S_SET_OTHER(S,V) \
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(aout_symbol (symbol_get_bfdsym (S))->other = (V))
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#define S_SET_TYPE(S,T) \
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(aout_symbol (symbol_get_bfdsym (S))->type = (T))
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#define S_SET_DESC(S,D) \
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(aout_symbol (symbol_get_bfdsym (S))->desc = (D))
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#define S_GET_OTHER(S) \
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(aout_symbol (symbol_get_bfdsym (S))->other)
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#define S_GET_TYPE(S) \
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(aout_symbol (symbol_get_bfdsym (S))->type)
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#define S_GET_DESC(S) \
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(aout_symbol (symbol_get_bfdsym (S))->desc)
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1999-05-03 09:29:11 +02:00
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asection *text_section, *data_section, *bss_section;
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#define obj_frob_symbol(S,PUNT) obj_aout_frob_symbol (S, &PUNT)
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2002-09-05 02:01:18 +02:00
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#define obj_frob_file_before_fix() obj_aout_frob_file_before_fix ()
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1999-05-03 09:29:11 +02:00
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2005-03-24 21:40:28 +01:00
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extern void obj_aout_frob_symbol (symbolS *, int *);
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extern void obj_aout_frob_file_before_fix (void);
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#define obj_sec_sym_ok_for_reloc(SEC) 1
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1999-05-03 09:29:11 +02:00
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2000-01-26 23:48:31 +01:00
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#define obj_read_begin_hook() {;}
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1999-05-03 09:29:11 +02:00
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#define obj_symbol_new_hook(s) {;}
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#define EMIT_SECTION_SYMBOLS 0
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#define AOUT_STABS
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