1 /* read.h - of read.c 2 Copyright (C) 1986-2020 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 bfd_boolean 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 int include_dir_count; 83 extern int 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 *, bfd_boolean); 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 add_include_dir (char *path); 128 extern void cons (int nbytes); 129 extern void demand_empty_rest_of_line (void); 130 extern void emit_expr (expressionS *exp, unsigned int nbytes); 131 extern void emit_expr_with_reloc (expressionS *exp, unsigned int nbytes, 132 TC_PARSE_CONS_RETURN_TYPE); 133 extern void emit_expr_fix (expressionS *, unsigned int, fragS *, char *, 134 TC_PARSE_CONS_RETURN_TYPE); 135 extern void equals (char *, int); 136 extern void float_cons (int); 137 extern void ignore_rest_of_line (void); 138 #define discard_rest_of_line ignore_rest_of_line 139 extern unsigned output_leb128 (char *, valueT, int); 140 extern void pseudo_set (symbolS * symbolP); 141 extern void read_a_source_file (const char *name); 142 extern void read_begin (void); 143 extern void read_print_statistics (FILE *); 144 extern char *read_symbol_name (void); 145 extern unsigned sizeof_leb128 (valueT, int); 146 extern void stabs_generate_asm_file (void); 147 extern void stabs_generate_asm_lineno (void); 148 extern void stabs_generate_asm_func (const char *, const char *); 149 extern void stabs_generate_asm_endfunc (const char *, const char *); 150 extern void do_repeat (size_t, const char *, const char *); 151 extern void do_repeat_with_expander (size_t, const char *, const char *, const char *); 152 extern void end_repeat (int); 153 extern void do_parse_cons_expression (expressionS *, int); 154 155 extern void generate_lineno_debug (void); 156 157 extern void s_abort (int) ATTRIBUTE_NORETURN; 158 extern void s_align_bytes (int arg); 159 extern void s_align_ptwo (int); 160 extern void do_align (unsigned int align, char *fill, unsigned int length, 161 unsigned int max); 162 extern void bss_alloc (symbolS *, addressT, unsigned); 163 extern offsetT parse_align (int); 164 extern symbolS *s_comm_internal (int, symbolS *(*) (int, symbolS *, addressT)); 165 extern symbolS *s_lcomm_internal (int, symbolS *, addressT); 166 extern void s_app_file_string (char *, int); 167 extern void s_app_file (int); 168 extern void s_app_line (int); 169 extern void s_bundle_align_mode (int); 170 extern void s_bundle_lock (int); 171 extern void s_bundle_unlock (int); 172 extern void s_comm (int); 173 extern void s_data (int); 174 extern void s_desc (int); 175 extern void s_else (int arg); 176 extern void s_elseif (int arg); 177 extern void s_end (int arg); 178 extern void s_endif (int arg); 179 extern void s_err (int); 180 extern void s_errwarn (int); 181 extern void s_fail (int); 182 extern void s_fill (int); 183 extern void s_float_space (int mult); 184 extern void s_func (int); 185 extern void s_globl (int arg); 186 extern void s_if (int arg); 187 extern void s_ifb (int arg); 188 extern void s_ifc (int arg); 189 extern void s_ifdef (int arg); 190 extern void s_ifeqs (int arg); 191 extern void s_ignore (int arg); 192 extern void s_include (int arg); 193 extern void s_irp (int arg); 194 extern void s_lcomm (int needs_align); 195 extern void s_lcomm_bytes (int needs_align); 196 extern void s_leb128 (int sign); 197 extern void s_linkonce (int); 198 extern void s_lsym (int); 199 extern void s_macro (int); 200 extern void s_mexit (int); 201 extern void s_mri (int); 202 extern void s_mri_common (int); 203 extern void s_org (int); 204 extern void s_print (int); 205 extern void s_purgem (int); 206 extern void s_rept (int); 207 extern void s_set (int); 208 extern void s_space (int mult); 209 extern void s_nops (int); 210 extern void s_stab (int what); 211 extern void s_struct (int); 212 extern void s_text (int); 213 extern void stringer (int append_zero); 214 extern void s_xstab (int what); 215 extern void s_rva (int); 216 extern void s_incbin (int); 217 extern void s_weakref (int); 218 extern void temp_ilp (char *); 219 extern void restore_ilp (void); 220