1 /* read.h - of read.c
2 Copyright (C) 1986-2023 Free Software Foundation, Inc.
3
4 This file is part of GAS, the GNU Assembler.
5
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)
9 any later version.
10
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.
15
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
19 02110-1301, USA. */
20
21 extern char *input_line_pointer; /* -> char we are parsing now. */
22 extern bool input_from_string;
23
24 /* Define to make whitespace be allowed in many syntactically
25 unnecessary places. Normally undefined. For compatibility with
26 ancient GNU cc. */
27 /* #undef PERMIT_WHITESPACE */
28 #define PERMIT_WHITESPACE
29
30 #ifdef PERMIT_WHITESPACE
31 #define SKIP_WHITESPACE() \
32 ((*input_line_pointer == ' ') ? ++input_line_pointer : 0)
33 #define SKIP_ALL_WHITESPACE() \
34 while (*input_line_pointer == ' ') ++input_line_pointer
35 #else
36 #define SKIP_WHITESPACE() know (*input_line_pointer != ' ' )
37 #define SKIP_ALL_WHITESPACE() SKIP_WHITESPACE()
38 #endif
39
40 #define SKIP_WHITESPACE_AFTER_NAME() \
41 do \
42 { \
43 if (* input_line_pointer == '"') \
44 ++ input_line_pointer; \
45 if (* input_line_pointer == ' ') \
46 ++ input_line_pointer; \
47 } \
48 while (0)
49
50 #define LEX_NAME (1) /* may continue a name */
51 #define LEX_BEGIN_NAME (2) /* may begin a name */
52 #define LEX_END_NAME (4) /* ends a name */
53
54 #define is_name_beginner(c) \
55 ( lex_type[(unsigned char) (c)] & LEX_BEGIN_NAME )
56 #define is_part_of_name(c) \
57 ( lex_type[(unsigned char) (c)] & LEX_NAME )
58 #define is_name_ender(c) \
59 ( lex_type[(unsigned char) (c)] & LEX_END_NAME )
60
61 #ifndef is_a_char
62 #define CHAR_MASK (0xff)
63 #define NOT_A_CHAR (CHAR_MASK+1)
64 #define is_a_char(c) (((unsigned) (c)) <= CHAR_MASK)
65 #endif /* is_a_char() */
66
67 extern char lex_type[];
68 extern char is_end_of_line[];
69
70 extern int is_it_end_of_statement (void);
71 extern char *find_end_of_line (char *, int);
72
73 extern int target_big_endian;
74
75 /* These are initialized by the CPU specific target files (tc-*.c). */
76 extern const char comment_chars[];
77 extern const char line_comment_chars[];
78 extern const char line_separator_chars[];
79
80 /* Table of -I directories. */
81 extern const char **include_dirs;
82 extern size_t include_dir_count;
83 extern size_t include_dir_maxlen;
84
85 /* The offset in the absolute section. */
86 extern addressT abs_section_offset;
87
88 /* The label on a line, used by some of the pseudo-ops. */
89 extern symbolS *line_label;
90
91 /* This is used to support MRI common sections. */
92 extern symbolS *mri_common_symbol;
93
94 /* True if a stabs line debug statement is currently being emitted. */
95 extern int outputting_stabs_line_debug;
96
97 /* Possible arguments to .linkonce. */
98 enum linkonce_type {
99 LINKONCE_UNSET = 0,
100 LINKONCE_DISCARD,
101 LINKONCE_ONE_ONLY,
102 LINKONCE_SAME_SIZE,
103 LINKONCE_SAME_CONTENTS
104 };
105
106 #ifndef TC_CASE_SENSITIVE
107 extern char original_case_string[];
108 #endif
109
110 #ifndef TC_PARSE_CONS_RETURN_TYPE
111 #define TC_PARSE_CONS_RETURN_TYPE bfd_reloc_code_real_type
112 #define TC_PARSE_CONS_RETURN_NONE BFD_RELOC_NONE
113 #endif
114
115 extern void pop_insert (const pseudo_typeS *);
116 extern unsigned int get_stab_string_offset
117 (const char *, const char *, bool);
118 extern void aout_process_stab (int, const char *, int, int, int);
119 extern char *demand_copy_string (int *lenP);
120 extern char *demand_copy_C_string (int *len_pointer);
121 extern char get_absolute_expression_and_terminator (long *val_pointer);
122 extern offsetT get_absolute_expression (void);
123 extern unsigned int next_char_of_string (void);
124 extern void s_mri_sect (char *);
125 extern char *mri_comment_field (char *);
126 extern void mri_comment_end (char *, int);
127 extern void init_include_dir (void);
128 extern void add_include_dir (char *);
129 extern FILE *search_and_open (const char *, char *);
130 extern void cons (int nbytes);
131 extern void demand_empty_rest_of_line (void);
132 extern void emit_expr (expressionS *exp, unsigned int nbytes);
133 extern void emit_expr_with_reloc (expressionS *exp, unsigned int nbytes,
134 TC_PARSE_CONS_RETURN_TYPE);
135 extern void emit_expr_fix (expressionS *, unsigned int, fragS *, char *,
136 TC_PARSE_CONS_RETURN_TYPE);
137 extern void emit_leb128_expr (expressionS *, int);
138 extern void equals (char *, int);
139 extern void float_cons (int);
140 extern void ignore_rest_of_line (void);
141 #define discard_rest_of_line ignore_rest_of_line
142 extern unsigned output_leb128 (char *, valueT, int);
143 extern void pseudo_set (symbolS * symbolP);
144 extern void read_a_source_file (const char *name);
145 extern void read_begin (void);
146 extern void read_end (void);
147 extern void read_print_statistics (FILE *);
148 extern char *read_symbol_name (void);
149 extern unsigned sizeof_leb128 (valueT, int);
150 extern void stabs_generate_asm_file (void);
151 extern void stabs_generate_asm_lineno (void);
152 extern void stabs_generate_asm_func (const char *, const char *);
153 extern void stabs_generate_asm_endfunc (const char *, const char *);
154 extern void stabs_begin (void);
155 extern void stabs_end (void);
156 extern void do_repeat (size_t, const char *, const char *, const char *);
157 extern void end_repeat (int);
158 extern void do_parse_cons_expression (expressionS *, int);
159
160 extern void generate_lineno_debug (void);
161
162 extern void s_abort (int) ATTRIBUTE_NORETURN;
163 extern void s_align_bytes (int arg);
164 extern void s_align_ptwo (int);
165 extern void do_align (unsigned int align, char *fill, unsigned int length,
166 unsigned int max);
167 extern void bss_alloc (symbolS *, addressT, unsigned);
168 extern offsetT parse_align (int);
169 extern symbolS *s_comm_internal (int, symbolS *(*) (int, symbolS *, addressT));
170 extern symbolS *s_lcomm_internal (int, symbolS *, addressT);
171 extern void s_file_string (char *);
172 extern void s_file (int);
173 extern void s_linefile (int);
174 extern void s_bundle_align_mode (int);
175 extern void s_bundle_lock (int);
176 extern void s_bundle_unlock (int);
177 extern void s_comm (int);
178 extern void s_data (int);
179 extern void s_desc (int);
180 extern void s_else (int arg);
181 extern void s_elseif (int arg);
182 extern void s_end (int arg);
183 extern void s_endif (int arg);
184 extern void s_err (int);
185 extern void s_errwarn (int);
186 extern void s_fail (int);
187 extern void s_fill (int);
188 extern void s_float_space (int mult);
189 extern void s_func (int);
190 extern void s_globl (int arg);
191 extern void s_if (int arg);
192 extern void s_ifb (int arg);
193 extern void s_ifc (int arg);
194 extern void s_ifdef (int arg);
195 extern void s_ifeqs (int arg);
196 extern void s_ignore (int arg);
197 extern void s_include (int arg);
198 extern void s_irp (int arg);
199 extern void s_lcomm (int needs_align);
200 extern void s_lcomm_bytes (int needs_align);
201 extern void s_leb128 (int sign);
202 extern void s_linkonce (int);
203 extern void s_lsym (int);
204 extern void s_macro (int);
205 extern void s_mexit (int);
206 extern void s_mri (int);
207 extern void s_mri_common (int);
208 extern void s_org (int);
209 extern void s_print (int);
210 extern void s_purgem (int);
211 extern void s_rept (int);
212 extern void s_set (int);
213 extern void s_space (int mult);
214 extern void s_nop (int);
215 extern void s_nops (int);
216 extern void s_stab (int what);
217 extern void s_struct (int);
218 extern void s_text (int);
219 extern void stringer (int append_zero);
220 extern void s_xstab (int what);
221 extern void s_rva (int);
222 extern void s_incbin (int);
223 extern void s_weakref (int);
224 extern void temp_ilp (char *);
225 extern void restore_ilp (void);