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d18d199917
Up to now, all symbol values are in units of bytes, where a "byte" can consist of one or more octets (e.g. 8 bit or 16 bit). Allow to specfiy that the "unit" of a newly created symbol is octets (exactly 8 bit), instead of bytes. * symbols.h (symbol_temp_new_now_octets): Declare. (symbol_set_value_now_octets, symbol_octets_p): Declare. * symbols.c (struct symbol_flags): New member sy_octets. (symbol_temp_new_now_octets): New function. (resolve_symbol_value): Return octets instead of bytes if sy_octets is set. (symbol_set_value_now_octets): New function. (symbol_octets_p): New function.
222 lines
7.9 KiB
C
222 lines
7.9 KiB
C
/* symbols.h -
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Copyright (C) 1987-2019 Free Software Foundation, Inc.
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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 published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GAS 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 GAS; see the file COPYING. If not, write to the Free
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Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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extern struct obstack notes; /* eg FixS live here. */
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extern struct obstack cond_obstack; /* this is where we track .ifdef/.endif
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(if we do that at all). */
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extern symbolS *symbol_rootP; /* all the symbol nodes */
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extern symbolS *symbol_lastP; /* last struct symbol we made, or NULL */
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extern symbolS abs_symbol;
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extern symbolS dot_symbol;
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extern int symbol_table_frozen;
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/* This is non-zero if symbols are case sensitive, which is the
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default. */
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extern int symbols_case_sensitive;
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char * symbol_relc_make_expr (expressionS *);
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char * symbol_relc_make_sym (symbolS *);
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char * symbol_relc_make_value (offsetT);
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char *decode_local_label_name (char *s);
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symbolS *symbol_find (const char *name);
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symbolS *symbol_find_noref (const char *name, int noref);
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symbolS *symbol_find_exact (const char *name);
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symbolS *symbol_find_exact_noref (const char *name, int noref);
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symbolS *symbol_find_or_make (const char *name);
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symbolS *symbol_make (const char *name);
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symbolS *symbol_new (const char *name, segT segment, valueT value,
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fragS * frag);
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symbolS *symbol_create (const char *name, segT segment, valueT value,
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fragS * frag);
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struct local_symbol *local_symbol_make (const char *name, segT section,
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valueT val, fragS *frag);
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symbolS *symbol_clone (symbolS *, int);
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#undef symbol_clone_if_forward_ref
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symbolS *symbol_clone_if_forward_ref (symbolS *, int);
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#define symbol_clone_if_forward_ref(s) symbol_clone_if_forward_ref (s, 0)
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symbolS *symbol_temp_new (segT, valueT, fragS *);
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symbolS *symbol_temp_new_now (void);
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symbolS *symbol_temp_new_now_octets (void);
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symbolS *symbol_temp_make (void);
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symbolS *colon (const char *sym_name);
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void local_colon (int n);
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void symbol_begin (void);
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void dot_symbol_init (void);
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void symbol_print_statistics (FILE *);
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void symbol_table_insert (symbolS * symbolP);
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valueT resolve_symbol_value (symbolS *);
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void resolve_local_symbol_values (void);
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int snapshot_symbol (symbolS **, valueT *, segT *, fragS **);
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void print_symbol_value (symbolS *);
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void print_expr (expressionS *);
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void print_expr_1 (FILE *, expressionS *);
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void print_symbol_value_1 (FILE *, symbolS *);
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int dollar_label_defined (long l);
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void dollar_label_clear (void);
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void define_dollar_label (long l);
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char *dollar_label_name (long l, int augend);
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void fb_label_instance_inc (long label);
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char *fb_label_name (long n, long augend);
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extern void copy_symbol_attributes (symbolS *, symbolS *);
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/* Get and set the values of symbols. These used to be macros. */
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extern valueT S_GET_VALUE (symbolS *);
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extern void S_SET_VALUE (symbolS *, valueT);
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extern int S_IS_FUNCTION (symbolS *);
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extern int S_IS_EXTERNAL (symbolS *);
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extern int S_IS_WEAK (symbolS *);
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extern int S_IS_WEAKREFR (symbolS *);
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extern int S_IS_WEAKREFD (symbolS *);
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extern int S_IS_COMMON (symbolS *);
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extern int S_IS_DEFINED (symbolS *);
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extern int S_FORCE_RELOC (symbolS *, int);
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extern int S_IS_DEBUG (symbolS *);
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extern int S_IS_LOCAL (symbolS *);
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extern int S_IS_STABD (symbolS *);
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extern int S_CAN_BE_REDEFINED (const symbolS *);
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extern int S_IS_VOLATILE (const symbolS *);
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extern int S_IS_FORWARD_REF (const symbolS *);
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extern const char *S_GET_NAME (symbolS *);
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extern segT S_GET_SEGMENT (symbolS *);
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extern void S_SET_SEGMENT (symbolS *, segT);
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extern void S_SET_EXTERNAL (symbolS *);
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extern void S_SET_NAME (symbolS *, const char *);
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extern void S_CLEAR_EXTERNAL (symbolS *);
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extern void S_SET_WEAK (symbolS *);
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extern void S_SET_WEAKREFR (symbolS *);
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extern void S_CLEAR_WEAKREFR (symbolS *);
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extern void S_SET_WEAKREFD (symbolS *);
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extern void S_CLEAR_WEAKREFD (symbolS *);
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extern void S_SET_THREAD_LOCAL (symbolS *);
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extern void S_SET_VOLATILE (symbolS *);
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extern void S_CLEAR_VOLATILE (symbolS *);
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extern void S_SET_FORWARD_REF (symbolS *);
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#ifndef WORKING_DOT_WORD
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struct broken_word
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{
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/* Linked list -- one of these structures per ".word x-y+C"
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expression. */
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struct broken_word *next_broken_word;
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/* Segment and subsegment for broken word. */
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segT seg;
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subsegT subseg;
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/* Which frag is this broken word in? */
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fragS *frag;
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/* Where in the frag is it? */
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char *word_goes_here;
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/* Where to add the break. */
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fragS *dispfrag; /* where to add the break */
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/* Operands of expression. */
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symbolS *add;
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symbolS *sub;
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offsetT addnum;
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int added; /* nasty thing happened yet? */
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/* 1: added and has a long-jump */
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/* 2: added but uses someone elses long-jump */
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/* Pointer to broken_word with a similar long-jump. */
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struct broken_word *use_jump;
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};
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extern struct broken_word *broken_words;
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#endif /* ifdef WORKING_DOT_WORD */
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/*
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* Current means for getting from symbols to segments and vice verse.
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* This will change for infinite-segments support (e.g. COFF).
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*/
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extern const segT N_TYPE_seg[]; /* subseg.c */
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#define SEGMENT_TO_SYMBOL_TYPE(seg) ( seg_N_TYPE [(int) (seg)] )
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extern const short seg_N_TYPE[];/* subseg.c */
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#define N_REGISTER 30 /* Fake N_TYPE value for SEG_REGISTER */
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void symbol_clear_list_pointers (symbolS * symbolP);
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void symbol_insert (symbolS * addme, symbolS * target,
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symbolS ** rootP, symbolS ** lastP);
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void symbol_remove (symbolS * symbolP, symbolS ** rootP,
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symbolS ** lastP);
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extern symbolS *symbol_previous (symbolS *);
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extern int symbol_on_chain (symbolS *s, symbolS *rootPP, symbolS *lastPP);
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void verify_symbol_chain (symbolS * rootP, symbolS * lastP);
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void symbol_append (symbolS * addme, symbolS * target,
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symbolS ** rootP, symbolS ** lastP);
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extern symbolS *symbol_next (symbolS *);
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extern expressionS *symbol_get_value_expression (symbolS *);
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extern void symbol_set_value_expression (symbolS *, const expressionS *);
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extern offsetT *symbol_X_add_number (symbolS *);
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extern void symbol_set_value_now (symbolS *);
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extern void symbol_set_value_now_octets (symbolS *);
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extern void symbol_set_frag (symbolS *, fragS *);
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extern fragS *symbol_get_frag (symbolS *);
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extern void symbol_mark_used (symbolS *);
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extern void symbol_clear_used (symbolS *);
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extern int symbol_used_p (symbolS *);
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extern void symbol_mark_used_in_reloc (symbolS *);
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extern void symbol_clear_used_in_reloc (symbolS *);
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extern int symbol_used_in_reloc_p (symbolS *);
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extern void symbol_mark_mri_common (symbolS *);
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extern void symbol_clear_mri_common (symbolS *);
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extern int symbol_mri_common_p (symbolS *);
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extern void symbol_mark_written (symbolS *);
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extern void symbol_clear_written (symbolS *);
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extern int symbol_written_p (symbolS *);
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extern void symbol_mark_resolved (symbolS *);
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extern int symbol_resolved_p (symbolS *);
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extern int symbol_section_p (symbolS *);
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extern int symbol_equated_p (symbolS *);
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extern int symbol_equated_reloc_p (symbolS *);
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extern int symbol_constant_p (symbolS *);
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extern int symbol_shadow_p (symbolS *);
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extern symbolS *symbol_symbolS (symbolS *);
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extern asymbol *symbol_get_bfdsym (symbolS *);
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extern void symbol_set_bfdsym (symbolS *, asymbol *);
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extern int symbol_same_p (symbolS *, symbolS *);
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extern int symbol_octets_p (symbolS *);
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#ifdef OBJ_SYMFIELD_TYPE
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OBJ_SYMFIELD_TYPE *symbol_get_obj (symbolS *);
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void symbol_set_obj (symbolS *, OBJ_SYMFIELD_TYPE *);
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#endif
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#ifdef TC_SYMFIELD_TYPE
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TC_SYMFIELD_TYPE *symbol_get_tc (symbolS *);
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void symbol_set_tc (symbolS *, TC_SYMFIELD_TYPE *);
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#endif
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