| 1 | /* read.h - of read.c |
| 2 | Copyright 1986, 1990, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
| 3 | 2000, 2001, 2002, 2003 |
| 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, 59 Temple Place - Suite 330, Boston, MA |
| 21 | 02111-1307, 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 | |
| 60 | extern int target_big_endian; |
| 61 | |
| 62 | /* These are initialized by the CPU specific target files (tc-*.c). */ |
| 63 | extern const char comment_chars[]; |
| 64 | extern const char line_comment_chars[]; |
| 65 | extern const char line_separator_chars[]; |
| 66 | |
| 67 | /* Table of -I directories. */ |
| 68 | extern char **include_dirs; |
| 69 | extern int include_dir_count; |
| 70 | extern int include_dir_maxlen; |
| 71 | |
| 72 | /* The offset in the absolute section. */ |
| 73 | extern addressT abs_section_offset; |
| 74 | |
| 75 | /* The label on a line, used by some of the pseudo-ops. */ |
| 76 | extern symbolS *line_label; |
| 77 | |
| 78 | /* This is used to support MRI common sections. */ |
| 79 | extern symbolS *mri_common_symbol; |
| 80 | |
| 81 | /* True if a stabs line debug statement is currently being emitted. */ |
| 82 | extern int outputting_stabs_line_debug; |
| 83 | |
| 84 | /* Possible arguments to .linkonce. */ |
| 85 | enum linkonce_type { |
| 86 | LINKONCE_UNSET = 0, |
| 87 | LINKONCE_DISCARD, |
| 88 | LINKONCE_ONE_ONLY, |
| 89 | LINKONCE_SAME_SIZE, |
| 90 | LINKONCE_SAME_CONTENTS |
| 91 | }; |
| 92 | |
| 93 | #ifndef TC_CASE_SENSITIVE |
| 94 | extern char original_case_string[]; |
| 95 | #endif |
| 96 | |
| 97 | extern void pop_insert (const pseudo_typeS *); |
| 98 | extern unsigned int get_stab_string_offset |
| 99 | (const char *string, const char *stabstr_secname); |
| 100 | extern void aout_process_stab (int, const char *, int, int, int); |
| 101 | extern char *demand_copy_string (int *lenP); |
| 102 | extern char *demand_copy_C_string (int *len_pointer); |
| 103 | extern char get_absolute_expression_and_terminator (long *val_pointer); |
| 104 | extern offsetT get_absolute_expr (expressionS *); |
| 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 emit_leb128_expr (expressionS *, int); |
| 115 | extern void equals (char *sym_name, int reassign); |
| 116 | extern void float_cons (int float_type); |
| 117 | extern void ignore_rest_of_line (void); |
| 118 | extern void discard_rest_of_line (void); |
| 119 | extern int output_leb128 (char *, valueT, int sign); |
| 120 | extern void pseudo_set (symbolS * symbolP); |
| 121 | extern void read_a_source_file (char *name); |
| 122 | extern void read_begin (void); |
| 123 | extern void read_print_statistics (FILE *); |
| 124 | extern int sizeof_leb128 (valueT, int sign); |
| 125 | extern void stabs_generate_asm_file (void); |
| 126 | extern void stabs_generate_asm_lineno (void); |
| 127 | extern void stabs_generate_asm_func (const char *, const char *); |
| 128 | extern void stabs_generate_asm_endfunc (const char *, const char *); |
| 129 | extern void do_repeat (int,const char *,const char *); |
| 130 | extern void end_repeat (int); |
| 131 | extern void do_parse_cons_expression (expressionS *, int); |
| 132 | |
| 133 | extern void generate_lineno_debug (void); |
| 134 | |
| 135 | extern void s_abort (int) ATTRIBUTE_NORETURN; |
| 136 | extern void s_align_bytes (int arg); |
| 137 | extern void s_align_ptwo (int); |
| 138 | extern void bss_alloc (symbolS *, addressT, int); |
| 139 | extern offsetT parse_align (int); |
| 140 | extern symbolS *s_comm_internal (int, symbolS *(*) (int, symbolS *, addressT)); |
| 141 | extern symbolS *s_lcomm_internal (int, symbolS *, addressT); |
| 142 | extern void s_app_file_string (char *, int); |
| 143 | extern void s_app_file (int); |
| 144 | extern void s_app_line (int); |
| 145 | extern void s_comm (int); |
| 146 | extern void s_data (int); |
| 147 | extern void s_desc (int); |
| 148 | extern void s_else (int arg); |
| 149 | extern void s_elseif (int arg); |
| 150 | extern void s_end (int arg); |
| 151 | extern void s_endif (int arg); |
| 152 | extern void s_err (int); |
| 153 | extern void s_errwarn (int); |
| 154 | extern void s_fail (int); |
| 155 | extern void s_fill (int); |
| 156 | extern void s_float_space (int mult); |
| 157 | extern void s_func (int); |
| 158 | extern void do_s_func (int, const char *); |
| 159 | extern void s_globl (int arg); |
| 160 | extern void s_if (int arg); |
| 161 | extern void s_ifc (int arg); |
| 162 | extern void s_ifdef (int arg); |
| 163 | extern void s_ifeqs (int arg); |
| 164 | extern void s_ignore (int arg); |
| 165 | extern void s_include (int arg); |
| 166 | extern void s_irp (int arg); |
| 167 | extern void s_lcomm (int needs_align); |
| 168 | extern void s_lcomm_bytes (int needs_align); |
| 169 | extern void s_leb128 (int sign); |
| 170 | extern void s_linkonce (int); |
| 171 | extern void s_lsym (int); |
| 172 | extern void s_macro (int); |
| 173 | extern void s_mexit (int); |
| 174 | extern void s_mri (int); |
| 175 | extern void s_mri_common (int); |
| 176 | extern void s_org (int); |
| 177 | extern void s_print (int); |
| 178 | extern void s_purgem (int); |
| 179 | extern void s_rept (int); |
| 180 | extern void s_set (int); |
| 181 | extern void s_space (int mult); |
| 182 | extern void s_stab (int what); |
| 183 | extern void s_struct (int); |
| 184 | extern void s_text (int); |
| 185 | extern void stringer (int append_zero); |
| 186 | extern void s_xstab (int what); |
| 187 | extern void s_rva (int); |
| 188 | extern void s_incbin (int); |