1/* read.h - of read.c 2 Copyright (C) 1986-2017 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 21extern char *input_line_pointer; /* -> char we are parsing now. */ 22 23/* Define to make whitespace be allowed in many syntactically 24 unnecessary places. Normally undefined. For compatibility with 25 ancient GNU cc. */ 26/* #undef PERMIT_WHITESPACE */ 27#define PERMIT_WHITESPACE 28 29#ifdef PERMIT_WHITESPACE 30#define SKIP_WHITESPACE() \ 31 ((*input_line_pointer == ' ') ? ++input_line_pointer : 0) 32#define SKIP_ALL_WHITESPACE() \ 33 while (*input_line_pointer == ' ') ++input_line_pointer 34#else 35#define SKIP_WHITESPACE() know (*input_line_pointer != ' ' ) 36#define SKIP_ALL_WHITESPACE() SKIP_WHITESPACE() 37#endif 38 39#define SKIP_WHITESPACE_AFTER_NAME() \ 40 do \ 41 { \ 42 if (* input_line_pointer == '"') \ 43 ++ input_line_pointer; \ 44 if (* input_line_pointer == ' ') \ 45 ++ input_line_pointer; \ 46 } \ 47 while (0) 48 49#define LEX_NAME (1) /* may continue a name */ 50#define LEX_BEGIN_NAME (2) /* may begin a name */ 51#define LEX_END_NAME (4) /* ends a name */ 52 53#define is_name_beginner(c) \ 54 ( lex_type[(unsigned char) (c)] & LEX_BEGIN_NAME ) 55#define is_part_of_name(c) \ 56 ( lex_type[(unsigned char) (c)] & LEX_NAME ) 57#define is_name_ender(c) \ 58 ( lex_type[(unsigned char) (c)] & LEX_END_NAME ) 59 60#ifndef is_a_char 61#define CHAR_MASK (0xff) 62#define NOT_A_CHAR (CHAR_MASK+1) 63#define is_a_char(c) (((unsigned) (c)) <= CHAR_MASK) 64#endif /* is_a_char() */ 65 66extern char lex_type[]; 67extern char is_end_of_line[]; 68 69extern int is_it_end_of_statement (void); 70extern char *find_end_of_line (char *, int); 71 72extern int target_big_endian; 73 74/* These are initialized by the CPU specific target files (tc-*.c). */ 75extern const char comment_chars[]; 76extern const char line_comment_chars[]; 77extern const char line_separator_chars[]; 78 79/* Table of -I directories. */ 80extern const char **include_dirs; 81extern int include_dir_count; 82extern int include_dir_maxlen; 83 84/* The offset in the absolute section. */ 85extern addressT abs_section_offset; 86 87/* The label on a line, used by some of the pseudo-ops. */ 88extern symbolS *line_label; 89 90/* This is used to support MRI common sections. */ 91extern symbolS *mri_common_symbol; 92 93/* True if a stabs line debug statement is currently being emitted. */ 94extern int outputting_stabs_line_debug; 95 96/* Possible arguments to .linkonce. */ 97enum linkonce_type { 98 LINKONCE_UNSET = 0, 99 LINKONCE_DISCARD, 100 LINKONCE_ONE_ONLY, 101 LINKONCE_SAME_SIZE, 102 LINKONCE_SAME_CONTENTS 103}; 104 105#ifndef TC_CASE_SENSITIVE 106extern char original_case_string[]; 107#endif 108 109#ifndef TC_PARSE_CONS_RETURN_TYPE 110#define TC_PARSE_CONS_RETURN_TYPE bfd_reloc_code_real_type 111#define TC_PARSE_CONS_RETURN_NONE BFD_RELOC_NONE 112#endif 113 114extern void pop_insert (const pseudo_typeS *); 115extern unsigned int get_stab_string_offset 116 (const char *string, const char *stabstr_secname); 117extern void aout_process_stab (int, const char *, int, int, int); 118extern char *demand_copy_string (int *lenP); 119extern char *demand_copy_C_string (int *len_pointer); 120extern char get_absolute_expression_and_terminator (long *val_pointer); 121extern offsetT get_absolute_expression (void); 122extern unsigned int next_char_of_string (void); 123extern void s_mri_sect (char *); 124extern char *mri_comment_field (char *); 125extern void mri_comment_end (char *, int); 126extern void add_include_dir (char *path); 127extern void cons (int nbytes); 128extern void demand_empty_rest_of_line (void); 129extern void emit_expr (expressionS *exp, unsigned int nbytes); 130extern void emit_expr_with_reloc (expressionS *exp, unsigned int nbytes, 131 TC_PARSE_CONS_RETURN_TYPE); 132extern void emit_expr_fix (expressionS *, unsigned int, fragS *, char *, 133 TC_PARSE_CONS_RETURN_TYPE); 134extern void equals (char *, int); 135extern void float_cons (int); 136extern void ignore_rest_of_line (void); 137#define discard_rest_of_line ignore_rest_of_line 138extern unsigned output_leb128 (char *, valueT, int); 139extern void pseudo_set (symbolS * symbolP); 140extern void read_a_source_file (const char *name); 141extern void read_begin (void); 142extern void read_print_statistics (FILE *); 143extern char *read_symbol_name (void); 144extern unsigned sizeof_leb128 (valueT, int); 145extern void stabs_generate_asm_file (void); 146extern void stabs_generate_asm_lineno (void); 147extern void stabs_generate_asm_func (const char *, const char *); 148extern void stabs_generate_asm_endfunc (const char *, const char *); 149extern void do_repeat (int,const char *,const char *); 150extern void do_repeat_with_expander (int, const char *, const char *, const char *); 151extern void end_repeat (int); 152extern void do_parse_cons_expression (expressionS *, int); 153 154extern void generate_lineno_debug (void); 155 156extern void s_abort (int) ATTRIBUTE_NORETURN; 157extern void s_align_bytes (int arg); 158extern void s_align_ptwo (int); 159extern void do_align (unsigned int align, char *fill, unsigned int length, 160 unsigned int max); 161extern void bss_alloc (symbolS *, addressT, unsigned); 162extern offsetT parse_align (int); 163extern symbolS *s_comm_internal (int, symbolS *(*) (int, symbolS *, addressT)); 164extern symbolS *s_lcomm_internal (int, symbolS *, addressT); 165extern void s_app_file_string (char *, int); 166extern void s_app_file (int); 167extern void s_app_line (int); 168extern void s_bundle_align_mode (int); 169extern void s_bundle_lock (int); 170extern void s_bundle_unlock (int); 171extern void s_comm (int); 172extern void s_data (int); 173extern void s_desc (int); 174extern void s_else (int arg); 175extern void s_elseif (int arg); 176extern void s_end (int arg); 177extern void s_endif (int arg); 178extern void s_err (int); 179extern void s_errwarn (int); 180extern void s_fail (int); 181extern void s_fill (int); 182extern void s_float_space (int mult); 183extern void s_func (int); 184extern void s_globl (int arg); 185extern void s_if (int arg); 186extern void s_ifb (int arg); 187extern void s_ifc (int arg); 188extern void s_ifdef (int arg); 189extern void s_ifeqs (int arg); 190extern void s_ignore (int arg); 191extern void s_include (int arg); 192extern void s_irp (int arg); 193extern void s_lcomm (int needs_align); 194extern void s_lcomm_bytes (int needs_align); 195extern void s_leb128 (int sign); 196extern void s_linkonce (int); 197extern void s_lsym (int); 198extern void s_macro (int); 199extern void s_mexit (int); 200extern void s_mri (int); 201extern void s_mri_common (int); 202extern void s_org (int); 203extern void s_print (int); 204extern void s_purgem (int); 205extern void s_rept (int); 206extern void s_set (int); 207extern void s_space (int mult); 208extern void s_stab (int what); 209extern void s_struct (int); 210extern void s_text (int); 211extern void stringer (int append_zero); 212extern void s_xstab (int what); 213extern void s_rva (int); 214extern void s_incbin (int); 215extern void s_weakref (int); 216