1 /* read.h - of read.c 2 Copyright 1986, 1990, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 3 2000, 2001, 2002, 2003, 2004, 2005 4 Free Software Foundation, Inc. 5 6 This file is part of GAS, the GNU Assembler. 7 8 GAS is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 2, or (at your option) 11 any later version. 12 13 GAS is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with GAS; see the file COPYING. If not, write to the Free 20 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 21 02110-1301, USA. */ 22 23 extern char *input_line_pointer; /* -> char we are parsing now. */ 24 25 /* Define to make whitespace be allowed in many syntactically 26 unnecessary places. Normally undefined. For compatibility with 27 ancient GNU cc. */ 28 /* #undef PERMIT_WHITESPACE */ 29 #define PERMIT_WHITESPACE 30 31 #ifdef PERMIT_WHITESPACE 32 #define SKIP_WHITESPACE() \ 33 ((*input_line_pointer == ' ') ? ++input_line_pointer : 0) 34 #else 35 #define SKIP_WHITESPACE() know(*input_line_pointer != ' ' ) 36 #endif 37 38 #define LEX_NAME (1) /* may continue a name */ 39 #define LEX_BEGIN_NAME (2) /* may begin a name */ 40 #define LEX_END_NAME (4) /* ends a name */ 41 42 #define is_name_beginner(c) \ 43 ( lex_type[(unsigned char) (c)] & LEX_BEGIN_NAME ) 44 #define is_part_of_name(c) \ 45 ( lex_type[(unsigned char) (c)] & LEX_NAME ) 46 #define is_name_ender(c) \ 47 ( lex_type[(unsigned char) (c)] & LEX_END_NAME ) 48 49 #ifndef is_a_char 50 #define CHAR_MASK (0xff) 51 #define NOT_A_CHAR (CHAR_MASK+1) 52 #define is_a_char(c) (((unsigned) (c)) <= CHAR_MASK) 53 #endif /* is_a_char() */ 54 55 extern char lex_type[]; 56 extern char is_end_of_line[]; 57 58 extern int is_it_end_of_statement (void); 59 extern char *find_end_of_line (char *, int); 60 61 extern int target_big_endian; 62 63 /* These are initialized by the CPU specific target files (tc-*.c). */ 64 extern const char comment_chars[]; 65 extern const char line_comment_chars[]; 66 extern const char line_separator_chars[]; 67 68 /* Table of -I directories. */ 69 extern char **include_dirs; 70 extern int include_dir_count; 71 extern int include_dir_maxlen; 72 73 /* The offset in the absolute section. */ 74 extern addressT abs_section_offset; 75 76 /* The label on a line, used by some of the pseudo-ops. */ 77 extern symbolS *line_label; 78 79 /* This is used to support MRI common sections. */ 80 extern symbolS *mri_common_symbol; 81 82 /* True if a stabs line debug statement is currently being emitted. */ 83 extern int outputting_stabs_line_debug; 84 85 /* Possible arguments to .linkonce. */ 86 enum linkonce_type { 87 LINKONCE_UNSET = 0, 88 LINKONCE_DISCARD, 89 LINKONCE_ONE_ONLY, 90 LINKONCE_SAME_SIZE, 91 LINKONCE_SAME_CONTENTS 92 }; 93 94 #ifndef TC_CASE_SENSITIVE 95 extern char original_case_string[]; 96 #endif 97 98 extern void pop_insert (const pseudo_typeS *); 99 extern unsigned int get_stab_string_offset 100 (const char *string, const char *stabstr_secname); 101 extern void aout_process_stab (int, const char *, int, int, int); 102 extern char *demand_copy_string (int *lenP); 103 extern char *demand_copy_C_string (int *len_pointer); 104 extern char get_absolute_expression_and_terminator (long *val_pointer); 105 extern offsetT get_absolute_expression (void); 106 extern unsigned int next_char_of_string (void); 107 extern void s_mri_sect (char *); 108 extern char *mri_comment_field (char *); 109 extern void mri_comment_end (char *, int); 110 extern void add_include_dir (char *path); 111 extern void cons (int nbytes); 112 extern void demand_empty_rest_of_line (void); 113 extern void emit_expr (expressionS *exp, unsigned int nbytes); 114 extern void equals (char *sym_name, int reassign); 115 extern void float_cons (int float_type); 116 extern void ignore_rest_of_line (void); 117 #define discard_rest_of_line ignore_rest_of_line 118 extern int output_leb128 (char *, valueT, int sign); 119 extern void pseudo_set (symbolS * symbolP); 120 extern void read_a_source_file (char *name); 121 extern void read_begin (void); 122 extern void read_print_statistics (FILE *); 123 extern int sizeof_leb128 (valueT, int sign); 124 extern void stabs_generate_asm_file (void); 125 extern void stabs_generate_asm_lineno (void); 126 extern void stabs_generate_asm_func (const char *, const char *); 127 extern void stabs_generate_asm_endfunc (const char *, const char *); 128 extern void do_repeat (int,const char *,const char *); 129 extern void end_repeat (int); 130 extern void do_parse_cons_expression (expressionS *, int); 131 132 extern void generate_lineno_debug (void); 133 134 extern void s_abort (int) ATTRIBUTE_NORETURN; 135 extern void s_align_bytes (int arg); 136 extern void s_align_ptwo (int); 137 extern void bss_alloc (symbolS *, addressT, int); 138 extern offsetT parse_align (int); 139 extern symbolS *s_comm_internal (int, symbolS *(*) (int, symbolS *, addressT)); 140 extern symbolS *s_lcomm_internal (int, symbolS *, addressT); 141 extern void s_app_file_string (char *, int); 142 extern void s_app_file (int); 143 extern void s_app_line (int); 144 extern void s_comm (int); 145 extern void s_data (int); 146 extern void s_desc (int); 147 extern void s_else (int arg); 148 extern void s_elseif (int arg); 149 extern void s_end (int arg); 150 extern void s_endif (int arg); 151 extern void s_err (int); 152 extern void s_errwarn (int); 153 extern void s_fail (int); 154 extern void s_fill (int); 155 extern void s_float_space (int mult); 156 extern void s_func (int); 157 extern void s_globl (int arg); 158 extern void s_if (int arg); 159 extern void s_ifb (int arg); 160 extern void s_ifc (int arg); 161 extern void s_ifdef (int arg); 162 extern void s_ifeqs (int arg); 163 extern void s_ignore (int arg); 164 extern void s_include (int arg); 165 extern void s_irp (int arg); 166 extern void s_lcomm (int needs_align); 167 extern void s_lcomm_bytes (int needs_align); 168 extern void s_leb128 (int sign); 169 extern void s_linkonce (int); 170 extern void s_lsym (int); 171 extern void s_macro (int); 172 extern void s_mexit (int); 173 extern void s_mri (int); 174 extern void s_mri_common (int); 175 extern void s_org (int); 176 extern void s_print (int); 177 extern void s_purgem (int); 178 extern void s_rept (int); 179 extern void s_set (int); 180 extern void s_space (int mult); 181 extern void s_stab (int what); 182 extern void s_struct (int); 183 extern void s_text (int); 184 extern void stringer (int append_zero); 185 extern void s_xstab (int what); 186 extern void s_rva (int); 187 extern void s_incbin (int); 188 extern void s_weakref (int); 189