1 |
6 |
jlechner |
/* symbols.h -
|
2 |
|
|
Copyright 1987, 1990, 1992, 1993, 1994, 1995, 1997, 1999, 2000, 2001,
|
3 |
|
|
2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
|
4 |
|
|
|
5 |
|
|
This file is part of GAS, the GNU Assembler.
|
6 |
|
|
|
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)
|
10 |
|
|
any later version.
|
11 |
|
|
|
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.
|
16 |
|
|
|
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
|
20 |
|
|
02110-1301, USA. */
|
21 |
|
|
|
22 |
|
|
extern struct obstack notes; /* eg FixS live here. */
|
23 |
|
|
|
24 |
|
|
extern struct obstack cond_obstack; /* this is where we track .ifdef/.endif
|
25 |
|
|
(if we do that at all). */
|
26 |
|
|
|
27 |
|
|
extern symbolS *symbol_rootP; /* all the symbol nodes */
|
28 |
|
|
extern symbolS *symbol_lastP; /* last struct symbol we made, or NULL */
|
29 |
|
|
|
30 |
|
|
extern symbolS abs_symbol;
|
31 |
|
|
|
32 |
|
|
extern int symbol_table_frozen;
|
33 |
|
|
|
34 |
|
|
/* This is non-zero if symbols are case sensitive, which is the
|
35 |
|
|
default. */
|
36 |
|
|
extern int symbols_case_sensitive;
|
37 |
|
|
|
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,
|
49 |
|
|
fragS * frag);
|
50 |
|
|
symbolS *symbol_create (const char *name, segT segment, valueT value,
|
51 |
|
|
fragS * frag);
|
52 |
|
|
symbolS *symbol_clone (symbolS *, int);
|
53 |
|
|
#undef symbol_clone_if_forward_ref
|
54 |
|
|
symbolS *symbol_clone_if_forward_ref (symbolS *, int);
|
55 |
|
|
#define symbol_clone_if_forward_ref(s) symbol_clone_if_forward_ref (s, 0)
|
56 |
|
|
symbolS *symbol_temp_new (segT, valueT, fragS *);
|
57 |
|
|
symbolS *symbol_temp_new_now (void);
|
58 |
|
|
symbolS *symbol_temp_make (void);
|
59 |
|
|
|
60 |
|
|
symbolS *colon (const char *sym_name);
|
61 |
|
|
void local_colon (int n);
|
62 |
|
|
void symbol_begin (void);
|
63 |
|
|
void symbol_print_statistics (FILE *);
|
64 |
|
|
void symbol_table_insert (symbolS * symbolP);
|
65 |
|
|
valueT resolve_symbol_value (symbolS *);
|
66 |
|
|
void resolve_local_symbol_values (void);
|
67 |
|
|
int snapshot_symbol (symbolS **, valueT *, segT *, fragS **);
|
68 |
|
|
|
69 |
|
|
void print_symbol_value (symbolS *);
|
70 |
|
|
void print_expr (expressionS *);
|
71 |
|
|
void print_expr_1 (FILE *, expressionS *);
|
72 |
|
|
void print_symbol_value_1 (FILE *, symbolS *);
|
73 |
|
|
|
74 |
|
|
int dollar_label_defined (long l);
|
75 |
|
|
void dollar_label_clear (void);
|
76 |
|
|
void define_dollar_label (long l);
|
77 |
|
|
char *dollar_label_name (long l, int augend);
|
78 |
|
|
|
79 |
|
|
void fb_label_instance_inc (long label);
|
80 |
|
|
char *fb_label_name (long n, long augend);
|
81 |
|
|
|
82 |
|
|
extern void copy_symbol_attributes (symbolS *, symbolS *);
|
83 |
|
|
|
84 |
|
|
/* Get and set the values of symbols. These used to be macros. */
|
85 |
|
|
extern valueT S_GET_VALUE (symbolS *);
|
86 |
|
|
extern void S_SET_VALUE (symbolS *, valueT);
|
87 |
|
|
|
88 |
|
|
extern int S_IS_FUNCTION (symbolS *);
|
89 |
|
|
extern int S_IS_EXTERNAL (symbolS *);
|
90 |
|
|
extern int S_IS_WEAK (symbolS *);
|
91 |
|
|
extern int S_IS_WEAKREFR (symbolS *);
|
92 |
|
|
extern int S_IS_WEAKREFD (symbolS *);
|
93 |
|
|
extern int S_IS_COMMON (symbolS *);
|
94 |
|
|
extern int S_IS_DEFINED (symbolS *);
|
95 |
|
|
extern int S_FORCE_RELOC (symbolS *, int);
|
96 |
|
|
extern int S_IS_DEBUG (symbolS *);
|
97 |
|
|
extern int S_IS_LOCAL (symbolS *);
|
98 |
|
|
extern int S_IS_STABD (symbolS *);
|
99 |
|
|
extern int S_IS_VOLATILE (const symbolS *);
|
100 |
|
|
extern int S_IS_FORWARD_REF (const symbolS *);
|
101 |
|
|
extern const char *S_GET_NAME (symbolS *);
|
102 |
|
|
extern segT S_GET_SEGMENT (symbolS *);
|
103 |
|
|
extern void S_SET_SEGMENT (symbolS *, segT);
|
104 |
|
|
extern void S_SET_EXTERNAL (symbolS *);
|
105 |
|
|
extern void S_SET_NAME (symbolS *, const char *);
|
106 |
|
|
extern void S_CLEAR_EXTERNAL (symbolS *);
|
107 |
|
|
extern void S_SET_WEAK (symbolS *);
|
108 |
|
|
extern void S_SET_WEAKREFR (symbolS *);
|
109 |
|
|
extern void S_CLEAR_WEAKREFR (symbolS *);
|
110 |
|
|
extern void S_SET_WEAKREFD (symbolS *);
|
111 |
|
|
extern void S_CLEAR_WEAKREFD (symbolS *);
|
112 |
|
|
extern void S_SET_THREAD_LOCAL (symbolS *);
|
113 |
|
|
extern void S_SET_VOLATILE (symbolS *);
|
114 |
|
|
extern void S_CLEAR_VOLATILE (symbolS *);
|
115 |
|
|
extern void S_SET_FORWARD_REF (symbolS *);
|
116 |
|
|
|
117 |
|
|
#ifndef WORKING_DOT_WORD
|
118 |
|
|
struct broken_word
|
119 |
|
|
{
|
120 |
|
|
/* Linked list -- one of these structures per ".word x-y+C"
|
121 |
|
|
expression. */
|
122 |
|
|
struct broken_word *next_broken_word;
|
123 |
|
|
/* Segment and subsegment for broken word. */
|
124 |
|
|
segT seg;
|
125 |
|
|
subsegT subseg;
|
126 |
|
|
/* Which frag is this broken word in? */
|
127 |
|
|
fragS *frag;
|
128 |
|
|
/* Where in the frag is it? */
|
129 |
|
|
char *word_goes_here;
|
130 |
|
|
/* Where to add the break. */
|
131 |
|
|
fragS *dispfrag; /* where to add the break */
|
132 |
|
|
/* Operands of expression. */
|
133 |
|
|
symbolS *add;
|
134 |
|
|
symbolS *sub;
|
135 |
|
|
offsetT addnum;
|
136 |
|
|
|
137 |
|
|
int added; /* nasty thing happened yet? */
|
138 |
|
|
/* 1: added and has a long-jump */
|
139 |
|
|
/* 2: added but uses someone elses long-jump */
|
140 |
|
|
|
141 |
|
|
/* Pointer to broken_word with a similar long-jump. */
|
142 |
|
|
struct broken_word *use_jump;
|
143 |
|
|
};
|
144 |
|
|
extern struct broken_word *broken_words;
|
145 |
|
|
#endif /* ndef WORKING_DOT_WORD */
|
146 |
|
|
|
147 |
|
|
/*
|
148 |
|
|
* Current means for getting from symbols to segments and vice verse.
|
149 |
|
|
* This will change for infinite-segments support (e.g. COFF).
|
150 |
|
|
*/
|
151 |
|
|
extern const segT N_TYPE_seg[]; /* subseg.c */
|
152 |
|
|
|
153 |
|
|
#define SEGMENT_TO_SYMBOL_TYPE(seg) ( seg_N_TYPE [(int) (seg)] )
|
154 |
|
|
extern const short seg_N_TYPE[];/* subseg.c */
|
155 |
|
|
|
156 |
|
|
#define N_REGISTER 30 /* Fake N_TYPE value for SEG_REGISTER */
|
157 |
|
|
|
158 |
|
|
void symbol_clear_list_pointers (symbolS * symbolP);
|
159 |
|
|
|
160 |
|
|
void symbol_insert (symbolS * addme, symbolS * target,
|
161 |
|
|
symbolS ** rootP, symbolS ** lastP);
|
162 |
|
|
void symbol_remove (symbolS * symbolP, symbolS ** rootP,
|
163 |
|
|
symbolS ** lastP);
|
164 |
|
|
|
165 |
|
|
extern symbolS *symbol_previous (symbolS *);
|
166 |
|
|
|
167 |
|
|
void verify_symbol_chain (symbolS * rootP, symbolS * lastP);
|
168 |
|
|
|
169 |
|
|
void symbol_append (symbolS * addme, symbolS * target,
|
170 |
|
|
symbolS ** rootP, symbolS ** lastP);
|
171 |
|
|
|
172 |
|
|
extern symbolS *symbol_next (symbolS *);
|
173 |
|
|
|
174 |
|
|
extern expressionS *symbol_get_value_expression (symbolS *);
|
175 |
|
|
extern void symbol_set_value_expression (symbolS *, const expressionS *);
|
176 |
|
|
extern offsetT *symbol_X_add_number (symbolS *);
|
177 |
|
|
extern void symbol_set_value_now (symbolS *);
|
178 |
|
|
extern void symbol_set_frag (symbolS *, fragS *);
|
179 |
|
|
extern fragS *symbol_get_frag (symbolS *);
|
180 |
|
|
extern void symbol_mark_used (symbolS *);
|
181 |
|
|
extern void symbol_clear_used (symbolS *);
|
182 |
|
|
extern int symbol_used_p (symbolS *);
|
183 |
|
|
extern void symbol_mark_used_in_reloc (symbolS *);
|
184 |
|
|
extern void symbol_clear_used_in_reloc (symbolS *);
|
185 |
|
|
extern int symbol_used_in_reloc_p (symbolS *);
|
186 |
|
|
extern void symbol_mark_mri_common (symbolS *);
|
187 |
|
|
extern void symbol_clear_mri_common (symbolS *);
|
188 |
|
|
extern int symbol_mri_common_p (symbolS *);
|
189 |
|
|
extern void symbol_mark_written (symbolS *);
|
190 |
|
|
extern void symbol_clear_written (symbolS *);
|
191 |
|
|
extern int symbol_written_p (symbolS *);
|
192 |
|
|
extern void symbol_mark_resolved (symbolS *);
|
193 |
|
|
extern int symbol_resolved_p (symbolS *);
|
194 |
|
|
extern int symbol_section_p (symbolS *);
|
195 |
|
|
extern int symbol_equated_p (symbolS *);
|
196 |
|
|
extern int symbol_equated_reloc_p (symbolS *);
|
197 |
|
|
extern int symbol_constant_p (symbolS *);
|
198 |
|
|
extern int symbol_shadow_p (symbolS *);
|
199 |
|
|
extern asymbol *symbol_get_bfdsym (symbolS *);
|
200 |
|
|
extern void symbol_set_bfdsym (symbolS *, asymbol *);
|
201 |
|
|
|
202 |
|
|
#ifdef OBJ_SYMFIELD_TYPE
|
203 |
|
|
OBJ_SYMFIELD_TYPE *symbol_get_obj (symbolS *);
|
204 |
|
|
void symbol_set_obj (symbolS *, OBJ_SYMFIELD_TYPE *);
|
205 |
|
|
#endif
|
206 |
|
|
|
207 |
|
|
#ifdef TC_SYMFIELD_TYPE
|
208 |
|
|
TC_SYMFIELD_TYPE *symbol_get_tc (symbolS *);
|
209 |
|
|
void symbol_set_tc (symbolS *, TC_SYMFIELD_TYPE *);
|
210 |
|
|
#endif
|