2 Copyright (C) 1987-2018 Free Software Foundation, Inc.
4 This file is part of GAS, the GNU Assembler.
6 GAS is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
11 GAS is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GAS; see the file COPYING. If not, write to the Free
18 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
21 extern struct obstack notes
; /* eg FixS live here. */
23 extern struct obstack cond_obstack
; /* this is where we track .ifdef/.endif
24 (if we do that at all). */
26 extern symbolS
*symbol_rootP
; /* all the symbol nodes */
27 extern symbolS
*symbol_lastP
; /* last struct symbol we made, or NULL */
29 extern symbolS abs_symbol
;
30 extern symbolS dot_symbol
;
32 extern int symbol_table_frozen
;
34 /* This is non-zero if symbols are case sensitive, which is the
36 extern int symbols_case_sensitive
;
38 char * symbol_relc_make_expr (expressionS
*);
39 char * symbol_relc_make_sym (symbolS
*);
40 char * symbol_relc_make_value (offsetT
);
41 char *decode_local_label_name (char *s
);
42 symbolS
*symbol_find (const char *name
);
43 symbolS
*symbol_find_noref (const char *name
, int noref
);
44 symbolS
*symbol_find_exact (const char *name
);
45 symbolS
*symbol_find_exact_noref (const char *name
, int noref
);
46 symbolS
*symbol_find_or_make (const char *name
);
47 symbolS
*symbol_make (const char *name
);
48 symbolS
*symbol_new (const char *name
, segT segment
, valueT value
,
50 symbolS
*symbol_create (const char *name
, segT segment
, valueT value
,
52 struct local_symbol
*local_symbol_make (const char *name
, segT section
,
53 valueT val
, fragS
*frag
);
54 symbolS
*symbol_clone (symbolS
*, int);
55 #undef symbol_clone_if_forward_ref
56 symbolS
*symbol_clone_if_forward_ref (symbolS
*, int);
57 #define symbol_clone_if_forward_ref(s) symbol_clone_if_forward_ref (s, 0)
58 symbolS
*symbol_temp_new (segT
, valueT
, fragS
*);
59 symbolS
*symbol_temp_new_now (void);
60 symbolS
*symbol_temp_make (void);
62 symbolS
*colon (const char *sym_name
);
63 void local_colon (int n
);
64 void symbol_begin (void);
65 void dot_symbol_init (void);
66 void symbol_print_statistics (FILE *);
67 void symbol_table_insert (symbolS
* symbolP
);
68 valueT
resolve_symbol_value (symbolS
*);
69 void resolve_local_symbol_values (void);
70 int snapshot_symbol (symbolS
**, valueT
*, segT
*, fragS
**);
72 void print_symbol_value (symbolS
*);
73 void print_expr (expressionS
*);
74 void print_expr_1 (FILE *, expressionS
*);
75 void print_symbol_value_1 (FILE *, symbolS
*);
77 int dollar_label_defined (long l
);
78 void dollar_label_clear (void);
79 void define_dollar_label (long l
);
80 char *dollar_label_name (long l
, int augend
);
82 void fb_label_instance_inc (long label
);
83 char *fb_label_name (long n
, long augend
);
85 extern void copy_symbol_attributes (symbolS
*, symbolS
*);
87 /* Get and set the values of symbols. These used to be macros. */
88 extern valueT
S_GET_VALUE (symbolS
*);
89 extern void S_SET_VALUE (symbolS
*, valueT
);
91 extern int S_IS_FUNCTION (symbolS
*);
92 extern int S_IS_EXTERNAL (symbolS
*);
93 extern int S_IS_WEAK (symbolS
*);
94 extern int S_IS_WEAKREFR (symbolS
*);
95 extern int S_IS_WEAKREFD (symbolS
*);
96 extern int S_IS_COMMON (symbolS
*);
97 extern int S_IS_DEFINED (symbolS
*);
98 extern int S_FORCE_RELOC (symbolS
*, int);
99 extern int S_IS_DEBUG (symbolS
*);
100 extern int S_IS_LOCAL (symbolS
*);
101 extern int S_IS_STABD (symbolS
*);
102 extern int S_CAN_BE_REDEFINED (const symbolS
*);
103 extern int S_IS_VOLATILE (const symbolS
*);
104 extern int S_IS_FORWARD_REF (const symbolS
*);
105 extern const char *S_GET_NAME (symbolS
*);
106 extern segT
S_GET_SEGMENT (symbolS
*);
107 extern void S_SET_SEGMENT (symbolS
*, segT
);
108 extern void S_SET_EXTERNAL (symbolS
*);
109 extern void S_SET_NAME (symbolS
*, const char *);
110 extern void S_CLEAR_EXTERNAL (symbolS
*);
111 extern void S_SET_WEAK (symbolS
*);
112 extern void S_SET_WEAKREFR (symbolS
*);
113 extern void S_CLEAR_WEAKREFR (symbolS
*);
114 extern void S_SET_WEAKREFD (symbolS
*);
115 extern void S_CLEAR_WEAKREFD (symbolS
*);
116 extern void S_SET_THREAD_LOCAL (symbolS
*);
117 extern void S_SET_VOLATILE (symbolS
*);
118 extern void S_CLEAR_VOLATILE (symbolS
*);
119 extern void S_SET_FORWARD_REF (symbolS
*);
121 #ifndef WORKING_DOT_WORD
124 /* Linked list -- one of these structures per ".word x-y+C"
126 struct broken_word
*next_broken_word
;
127 /* Segment and subsegment for broken word. */
130 /* Which frag is this broken word in? */
132 /* Where in the frag is it? */
133 char *word_goes_here
;
134 /* Where to add the break. */
135 fragS
*dispfrag
; /* where to add the break */
136 /* Operands of expression. */
141 int added
; /* nasty thing happened yet? */
142 /* 1: added and has a long-jump */
143 /* 2: added but uses someone elses long-jump */
145 /* Pointer to broken_word with a similar long-jump. */
146 struct broken_word
*use_jump
;
148 extern struct broken_word
*broken_words
;
149 #endif /* ifdef WORKING_DOT_WORD */
152 * Current means for getting from symbols to segments and vice verse.
153 * This will change for infinite-segments support (e.g. COFF).
155 extern const segT N_TYPE_seg
[]; /* subseg.c */
157 #define SEGMENT_TO_SYMBOL_TYPE(seg) ( seg_N_TYPE [(int) (seg)] )
158 extern const short seg_N_TYPE
[];/* subseg.c */
160 #define N_REGISTER 30 /* Fake N_TYPE value for SEG_REGISTER */
162 void symbol_clear_list_pointers (symbolS
* symbolP
);
164 void symbol_insert (symbolS
* addme
, symbolS
* target
,
165 symbolS
** rootP
, symbolS
** lastP
);
166 void symbol_remove (symbolS
* symbolP
, symbolS
** rootP
,
169 extern symbolS
*symbol_previous (symbolS
*);
171 void verify_symbol_chain (symbolS
* rootP
, symbolS
* lastP
);
173 void symbol_append (symbolS
* addme
, symbolS
* target
,
174 symbolS
** rootP
, symbolS
** lastP
);
176 extern symbolS
*symbol_next (symbolS
*);
178 extern expressionS
*symbol_get_value_expression (symbolS
*);
179 extern void symbol_set_value_expression (symbolS
*, const expressionS
*);
180 extern offsetT
*symbol_X_add_number (symbolS
*);
181 extern void symbol_set_value_now (symbolS
*);
182 extern void symbol_set_frag (symbolS
*, fragS
*);
183 extern fragS
*symbol_get_frag (symbolS
*);
184 extern void symbol_mark_used (symbolS
*);
185 extern void symbol_clear_used (symbolS
*);
186 extern int symbol_used_p (symbolS
*);
187 extern void symbol_mark_used_in_reloc (symbolS
*);
188 extern void symbol_clear_used_in_reloc (symbolS
*);
189 extern int symbol_used_in_reloc_p (symbolS
*);
190 extern void symbol_mark_mri_common (symbolS
*);
191 extern void symbol_clear_mri_common (symbolS
*);
192 extern int symbol_mri_common_p (symbolS
*);
193 extern void symbol_mark_written (symbolS
*);
194 extern void symbol_clear_written (symbolS
*);
195 extern int symbol_written_p (symbolS
*);
196 extern void symbol_mark_resolved (symbolS
*);
197 extern int symbol_resolved_p (symbolS
*);
198 extern int symbol_section_p (symbolS
*);
199 extern int symbol_equated_p (symbolS
*);
200 extern int symbol_equated_reloc_p (symbolS
*);
201 extern int symbol_constant_p (symbolS
*);
202 extern int symbol_shadow_p (symbolS
*);
203 extern asymbol
*symbol_get_bfdsym (symbolS
*);
204 extern void symbol_set_bfdsym (symbolS
*, asymbol
*);
205 extern int symbol_same_p (symbolS
*, symbolS
*);
207 #ifdef OBJ_SYMFIELD_TYPE
208 OBJ_SYMFIELD_TYPE
*symbol_get_obj (symbolS
*);
209 void symbol_set_obj (symbolS
*, OBJ_SYMFIELD_TYPE
*);
212 #ifdef TC_SYMFIELD_TYPE
213 TC_SYMFIELD_TYPE
*symbol_get_tc (symbolS
*);
214 void symbol_set_tc (symbolS
*, TC_SYMFIELD_TYPE
*);
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