2 Copyright 1987, 1990, 1992, 1993, 1994, 1995, 1997, 1999, 2000, 2001,
3 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
5 This file is part of GAS, the GNU Assembler.
7 GAS is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
22 extern struct obstack notes
; /* eg FixS live here. */
24 extern struct obstack cond_obstack
; /* this is where we track .ifdef/.endif
25 (if we do that at all). */
27 extern symbolS
*symbol_rootP
; /* all the symbol nodes */
28 extern symbolS
*symbol_lastP
; /* last struct symbol we made, or NULL */
30 extern symbolS abs_symbol
;
31 extern symbolS dot_symbol
;
33 extern int symbol_table_frozen
;
35 /* This is non-zero if symbols are case sensitive, which is the
37 extern int symbols_case_sensitive
;
39 char * symbol_relc_make_expr (expressionS
*);
40 char * symbol_relc_make_sym (symbolS
*);
41 char * symbol_relc_make_value (offsetT
);
42 char *decode_local_label_name (char *s
);
43 symbolS
*symbol_find (const char *name
);
44 symbolS
*symbol_find_noref (const char *name
, int noref
);
45 symbolS
*symbol_find_exact (const char *name
);
46 symbolS
*symbol_find_exact_noref (const char *name
, int noref
);
47 symbolS
*symbol_find_or_make (const char *name
);
48 symbolS
*symbol_make (const char *name
);
49 symbolS
*symbol_new (const char *name
, segT segment
, valueT value
,
51 symbolS
*symbol_create (const char *name
, segT segment
, valueT value
,
53 symbolS
*symbol_clone (symbolS
*, int);
54 #undef symbol_clone_if_forward_ref
55 symbolS
*symbol_clone_if_forward_ref (symbolS
*, int);
56 #define symbol_clone_if_forward_ref(s) symbol_clone_if_forward_ref (s, 0)
57 symbolS
*symbol_temp_new (segT
, valueT
, fragS
*);
58 symbolS
*symbol_temp_new_now (void);
59 symbolS
*symbol_temp_make (void);
61 symbolS
*colon (const char *sym_name
);
62 void local_colon (int n
);
63 void symbol_begin (void);
64 void dot_symbol_init (void);
65 void symbol_print_statistics (FILE *);
66 void symbol_table_insert (symbolS
* symbolP
);
67 valueT
resolve_symbol_value (symbolS
*);
68 void resolve_local_symbol_values (void);
69 int snapshot_symbol (symbolS
**, valueT
*, segT
*, fragS
**);
71 void print_symbol_value (symbolS
*);
72 void print_expr (expressionS
*);
73 void print_expr_1 (FILE *, expressionS
*);
74 void print_symbol_value_1 (FILE *, symbolS
*);
76 int dollar_label_defined (long l
);
77 void dollar_label_clear (void);
78 void define_dollar_label (long l
);
79 char *dollar_label_name (long l
, int augend
);
81 void fb_label_instance_inc (long label
);
82 char *fb_label_name (long n
, long augend
);
84 extern void copy_symbol_attributes (symbolS
*, symbolS
*);
86 /* Get and set the values of symbols. These used to be macros. */
87 extern valueT
S_GET_VALUE (symbolS
*);
88 extern void S_SET_VALUE (symbolS
*, valueT
);
90 extern int S_IS_FUNCTION (symbolS
*);
91 extern int S_IS_EXTERNAL (symbolS
*);
92 extern int S_IS_WEAK (symbolS
*);
93 extern int S_IS_WEAKREFR (symbolS
*);
94 extern int S_IS_WEAKREFD (symbolS
*);
95 extern int S_IS_COMMON (symbolS
*);
96 extern int S_IS_DEFINED (symbolS
*);
97 extern int S_FORCE_RELOC (symbolS
*, int);
98 extern int S_IS_DEBUG (symbolS
*);
99 extern int S_IS_LOCAL (symbolS
*);
100 extern int S_IS_STABD (symbolS
*);
101 extern int S_IS_VOLATILE (const symbolS
*);
102 extern int S_IS_FORWARD_REF (const symbolS
*);
103 extern const char *S_GET_NAME (symbolS
*);
104 extern segT
S_GET_SEGMENT (symbolS
*);
105 extern void S_SET_SEGMENT (symbolS
*, segT
);
106 extern void S_SET_EXTERNAL (symbolS
*);
107 extern void S_SET_NAME (symbolS
*, const char *);
108 extern void S_CLEAR_EXTERNAL (symbolS
*);
109 extern void S_SET_WEAK (symbolS
*);
110 extern void S_SET_WEAKREFR (symbolS
*);
111 extern void S_CLEAR_WEAKREFR (symbolS
*);
112 extern void S_SET_WEAKREFD (symbolS
*);
113 extern void S_CLEAR_WEAKREFD (symbolS
*);
114 extern void S_SET_THREAD_LOCAL (symbolS
*);
115 extern void S_SET_VOLATILE (symbolS
*);
116 extern void S_CLEAR_VOLATILE (symbolS
*);
117 extern void S_SET_FORWARD_REF (symbolS
*);
119 #ifndef WORKING_DOT_WORD
122 /* Linked list -- one of these structures per ".word x-y+C"
124 struct broken_word
*next_broken_word
;
125 /* Segment and subsegment for broken word. */
128 /* Which frag is this broken word in? */
130 /* Where in the frag is it? */
131 char *word_goes_here
;
132 /* Where to add the break. */
133 fragS
*dispfrag
; /* where to add the break */
134 /* Operands of expression. */
139 int added
; /* nasty thing happened yet? */
140 /* 1: added and has a long-jump */
141 /* 2: added but uses someone elses long-jump */
143 /* Pointer to broken_word with a similar long-jump. */
144 struct broken_word
*use_jump
;
146 extern struct broken_word
*broken_words
;
147 #endif /* ndef WORKING_DOT_WORD */
150 * Current means for getting from symbols to segments and vice verse.
151 * This will change for infinite-segments support (e.g. COFF).
153 extern const segT N_TYPE_seg
[]; /* subseg.c */
155 #define SEGMENT_TO_SYMBOL_TYPE(seg) ( seg_N_TYPE [(int) (seg)] )
156 extern const short seg_N_TYPE
[];/* subseg.c */
158 #define N_REGISTER 30 /* Fake N_TYPE value for SEG_REGISTER */
160 void symbol_clear_list_pointers (symbolS
* symbolP
);
162 void symbol_insert (symbolS
* addme
, symbolS
* target
,
163 symbolS
** rootP
, symbolS
** lastP
);
164 void symbol_remove (symbolS
* symbolP
, symbolS
** rootP
,
167 extern symbolS
*symbol_previous (symbolS
*);
169 void verify_symbol_chain (symbolS
* rootP
, symbolS
* lastP
);
171 void symbol_append (symbolS
* addme
, symbolS
* target
,
172 symbolS
** rootP
, symbolS
** lastP
);
174 extern symbolS
*symbol_next (symbolS
*);
176 extern expressionS
*symbol_get_value_expression (symbolS
*);
177 extern void symbol_set_value_expression (symbolS
*, const expressionS
*);
178 extern offsetT
*symbol_X_add_number (symbolS
*);
179 extern void symbol_set_value_now (symbolS
*);
180 extern void symbol_set_frag (symbolS
*, fragS
*);
181 extern fragS
*symbol_get_frag (symbolS
*);
182 extern void symbol_mark_used (symbolS
*);
183 extern void symbol_clear_used (symbolS
*);
184 extern int symbol_used_p (symbolS
*);
185 extern void symbol_mark_used_in_reloc (symbolS
*);
186 extern void symbol_clear_used_in_reloc (symbolS
*);
187 extern int symbol_used_in_reloc_p (symbolS
*);
188 extern void symbol_mark_mri_common (symbolS
*);
189 extern void symbol_clear_mri_common (symbolS
*);
190 extern int symbol_mri_common_p (symbolS
*);
191 extern void symbol_mark_written (symbolS
*);
192 extern void symbol_clear_written (symbolS
*);
193 extern int symbol_written_p (symbolS
*);
194 extern void symbol_mark_resolved (symbolS
*);
195 extern int symbol_resolved_p (symbolS
*);
196 extern int symbol_section_p (symbolS
*);
197 extern int symbol_equated_p (symbolS
*);
198 extern int symbol_equated_reloc_p (symbolS
*);
199 extern int symbol_constant_p (symbolS
*);
200 extern int symbol_shadow_p (symbolS
*);
201 extern asymbol
*symbol_get_bfdsym (symbolS
*);
202 extern void symbol_set_bfdsym (symbolS
*, asymbol
*);
203 extern int symbol_same_p (symbolS
*, symbolS
*);
205 #ifdef OBJ_SYMFIELD_TYPE
206 OBJ_SYMFIELD_TYPE
*symbol_get_obj (symbolS
*);
207 void symbol_set_obj (symbolS
*, OBJ_SYMFIELD_TYPE
*);
210 #ifdef TC_SYMFIELD_TYPE
211 TC_SYMFIELD_TYPE
*symbol_get_tc (symbolS
*);
212 void symbol_set_tc (symbolS
*, TC_SYMFIELD_TYPE
*);
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