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- /* symbols.h -
- Copyright (C) 1987-2022 Free Software Foundation, Inc.
- This file is part of GAS, the GNU Assembler.
- GAS is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3, or (at your option)
- any later version.
- GAS is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with GAS; see the file COPYING. If not, write to the Free
- Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
- 02110-1301, USA. */
- extern struct obstack notes; /* eg FixS live here. */
- extern struct obstack cond_obstack; /* this is where we track .ifdef/.endif
- (if we do that at all). */
- extern symbolS *symbol_rootP; /* all the symbol nodes */
- extern symbolS *symbol_lastP; /* last struct symbol we made, or NULL */
- extern symbolS abs_symbol;
- extern symbolS dot_symbol;
- extern int symbol_table_frozen;
- /* This is non-zero if symbols are case sensitive, which is the
- default. */
- extern int symbols_case_sensitive;
- char * symbol_relc_make_expr (expressionS *);
- char * symbol_relc_make_sym (symbolS *);
- char * symbol_relc_make_value (offsetT);
- char *decode_local_label_name (char *s);
- symbolS *symbol_find (const char *name);
- symbolS *symbol_find_noref (const char *name, int noref);
- symbolS *symbol_find_exact (const char *name);
- symbolS *symbol_find_exact_noref (const char *name, int noref);
- symbolS *symbol_find_or_make (const char *name);
- symbolS *symbol_make (const char *name);
- symbolS *symbol_new (const char *, segT, fragS *, valueT);
- symbolS *symbol_create (const char *, segT, fragS *, valueT);
- struct local_symbol *local_symbol_make (const char *, segT, fragS *, valueT);
- symbolS *symbol_clone (symbolS *, int);
- #undef symbol_clone_if_forward_ref
- symbolS *symbol_clone_if_forward_ref (symbolS *, int);
- #define symbol_clone_if_forward_ref(s) symbol_clone_if_forward_ref (s, 0)
- symbolS *symbol_temp_new (segT, fragS *, valueT);
- symbolS *symbol_temp_new_now (void);
- symbolS *symbol_temp_new_now_octets (void);
- symbolS *symbol_temp_make (void);
- symbolS *colon (const char *sym_name);
- void local_colon (int n);
- void symbol_begin (void);
- void dot_symbol_init (void);
- void symbol_print_statistics (FILE *);
- void symbol_table_insert (symbolS * symbolP);
- valueT resolve_symbol_value (symbolS *);
- void resolve_local_symbol_values (void);
- int snapshot_symbol (symbolS **, valueT *, segT *, fragS **);
- void print_symbol_value (symbolS *);
- void print_expr (expressionS *);
- void print_expr_1 (FILE *, expressionS *);
- void print_symbol_value_1 (FILE *, symbolS *);
- int dollar_label_defined (unsigned int);
- void dollar_label_clear (void);
- void define_dollar_label (unsigned int);
- char *dollar_label_name (unsigned int, unsigned int);
- void fb_label_instance_inc (unsigned int);
- char *fb_label_name (unsigned int, unsigned int);
- extern void copy_symbol_attributes (symbolS *, symbolS *);
- /* Get and set the values of symbols. These used to be macros. */
- extern valueT S_GET_VALUE (symbolS *);
- extern void S_SET_VALUE (symbolS *, valueT);
- extern int S_IS_FUNCTION (symbolS *);
- extern int S_IS_EXTERNAL (symbolS *);
- extern int S_IS_WEAK (symbolS *);
- extern int S_IS_WEAKREFR (symbolS *);
- extern int S_IS_WEAKREFD (symbolS *);
- extern int S_IS_COMMON (symbolS *);
- extern int S_IS_DEFINED (symbolS *);
- extern int S_FORCE_RELOC (symbolS *, int);
- extern int S_IS_DEBUG (symbolS *);
- extern int S_IS_LOCAL (symbolS *);
- extern int S_IS_STABD (symbolS *);
- extern int S_CAN_BE_REDEFINED (const symbolS *);
- extern int S_IS_VOLATILE (const symbolS *);
- extern int S_IS_FORWARD_REF (const symbolS *);
- extern const char *S_GET_NAME (symbolS *);
- extern segT S_GET_SEGMENT (symbolS *);
- extern void S_SET_SEGMENT (symbolS *, segT);
- extern void S_SET_EXTERNAL (symbolS *);
- extern void S_SET_NAME (symbolS *, const char *);
- extern void S_CLEAR_EXTERNAL (symbolS *);
- extern void S_SET_WEAK (symbolS *);
- extern void S_SET_WEAKREFR (symbolS *);
- extern void S_CLEAR_WEAKREFR (symbolS *);
- extern void S_SET_WEAKREFD (symbolS *);
- extern void S_CLEAR_WEAKREFD (symbolS *);
- extern void S_SET_THREAD_LOCAL (symbolS *);
- extern void S_SET_VOLATILE (symbolS *);
- extern void S_CLEAR_VOLATILE (symbolS *);
- extern void S_SET_FORWARD_REF (symbolS *);
- #ifndef WORKING_DOT_WORD
- struct broken_word
- {
- /* Linked list -- one of these structures per ".word x-y+C"
- expression. */
- struct broken_word *next_broken_word;
- /* Segment and subsegment for broken word. */
- segT seg;
- subsegT subseg;
- /* Which frag is this broken word in? */
- fragS *frag;
- /* Where in the frag is it? */
- char *word_goes_here;
- /* Where to add the break. */
- fragS *dispfrag; /* where to add the break */
- /* Operands of expression. */
- symbolS *add;
- symbolS *sub;
- offsetT addnum;
- int added; /* nasty thing happened yet? */
- /* 1: added and has a long-jump */
- /* 2: added but uses someone elses long-jump */
- /* Pointer to broken_word with a similar long-jump. */
- struct broken_word *use_jump;
- };
- extern struct broken_word *broken_words;
- #endif /* ifdef WORKING_DOT_WORD */
- /*
- * Current means for getting from symbols to segments and vice verse.
- * This will change for infinite-segments support (e.g. COFF).
- */
- extern const segT N_TYPE_seg[]; /* subseg.c */
- #define SEGMENT_TO_SYMBOL_TYPE(seg) ( seg_N_TYPE [(int) (seg)] )
- extern const short seg_N_TYPE[];/* subseg.c */
- #define N_REGISTER 30 /* Fake N_TYPE value for SEG_REGISTER */
- void symbol_clear_list_pointers (symbolS * symbolP);
- void symbol_insert (symbolS * addme, symbolS * target,
- symbolS ** rootP, symbolS ** lastP);
- void symbol_remove (symbolS * symbolP, symbolS ** rootP,
- symbolS ** lastP);
- extern symbolS *symbol_previous (symbolS *);
- extern int symbol_on_chain (symbolS *s, symbolS *rootPP, symbolS *lastPP);
- void verify_symbol_chain (symbolS * rootP, symbolS * lastP);
- void symbol_append (symbolS * addme, symbolS * target,
- symbolS ** rootP, symbolS ** lastP);
- extern symbolS *symbol_next (symbolS *);
- extern expressionS *symbol_get_value_expression (symbolS *);
- extern void symbol_set_value_expression (symbolS *, const expressionS *);
- extern offsetT *symbol_X_add_number (symbolS *);
- extern void symbol_set_value_now (symbolS *);
- extern void symbol_set_frag (symbolS *, fragS *);
- extern fragS *symbol_get_frag (symbolS *);
- extern void symbol_mark_used (symbolS *);
- extern void symbol_clear_used (symbolS *);
- extern int symbol_used_p (symbolS *);
- extern void symbol_mark_used_in_reloc (symbolS *);
- extern void symbol_clear_used_in_reloc (symbolS *);
- extern int symbol_used_in_reloc_p (symbolS *);
- extern void symbol_mark_mri_common (symbolS *);
- extern void symbol_clear_mri_common (symbolS *);
- extern int symbol_mri_common_p (symbolS *);
- extern void symbol_mark_written (symbolS *);
- extern void symbol_clear_written (symbolS *);
- extern int symbol_written_p (symbolS *);
- extern void symbol_mark_removed (symbolS *);
- extern int symbol_removed_p (symbolS *);
- extern void symbol_mark_resolved (symbolS *);
- extern int symbol_resolved_p (symbolS *);
- extern int symbol_section_p (symbolS *);
- extern int symbol_equated_p (symbolS *);
- extern int symbol_equated_reloc_p (symbolS *);
- extern int symbol_constant_p (symbolS *);
- extern int symbol_shadow_p (symbolS *);
- extern symbolS *symbol_symbolS (symbolS *);
- extern asymbol *symbol_get_bfdsym (symbolS *);
- extern void symbol_set_bfdsym (symbolS *, asymbol *);
- extern int symbol_same_p (symbolS *, symbolS *);
- #ifdef OBJ_SYMFIELD_TYPE
- OBJ_SYMFIELD_TYPE *symbol_get_obj (symbolS *);
- void symbol_set_obj (symbolS *, OBJ_SYMFIELD_TYPE *);
- #endif
- #ifdef TC_SYMFIELD_TYPE
- TC_SYMFIELD_TYPE *symbol_get_tc (symbolS *);
- void symbol_set_tc (symbolS *, TC_SYMFIELD_TYPE *);
- #endif
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