read.h revision 77298
1/* read.h - of read.c 2 Copyright (C) 1986, 90, 92, 93, 94, 95, 96, 97, 2000 3 Free Software Foundation, Inc. 4 5 This file is part of GAS, the GNU Assembler. 6 7 GAS is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2, or (at your option) 10 any later version. 11 12 GAS is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GAS; see the file COPYING. If not, write to the Free 19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 20 02111-1307, USA. */ 21 22extern char *input_line_pointer; /* -> char we are parsing now. */ 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 { \ 33 if (* input_line_pointer == ' ') \ 34 ++ input_line_pointer; \ 35 } 36#else 37#define SKIP_WHITESPACE() know(*input_line_pointer != ' ' ) 38#endif 39 40#define LEX_NAME (1) /* may continue a name */ 41#define LEX_BEGIN_NAME (2) /* may begin a name */ 42#define LEX_END_NAME (4) /* ends a name */ 43 44#define is_name_beginner(c) \ 45 ( lex_type[(unsigned char) (c)] & LEX_BEGIN_NAME ) 46#define is_part_of_name(c) \ 47 ( lex_type[(unsigned char) (c)] & LEX_NAME ) 48#define is_name_ender(c) \ 49 ( lex_type[(unsigned char) (c)] & LEX_END_NAME ) 50 51#ifndef is_a_char 52#define CHAR_MASK (0xff) 53#define NOT_A_CHAR (CHAR_MASK+1) 54#define is_a_char(c) (((unsigned) (c)) <= CHAR_MASK) 55#endif /* is_a_char() */ 56 57extern char lex_type[]; 58extern char is_end_of_line[]; 59 60extern int is_it_end_of_statement PARAMS ((void)); 61 62extern int target_big_endian; 63 64/* These are initialized by the CPU specific target files (tc-*.c). */ 65extern const char comment_chars[]; 66extern const char line_comment_chars[]; 67extern const char line_separator_chars[]; 68 69/* Table of -I directories. */ 70extern char **include_dirs; 71extern int include_dir_count; 72extern int include_dir_maxlen; 73 74/* The offset in the absolute section. */ 75extern addressT abs_section_offset; 76 77/* The label on a line, used by some of the pseudo-ops. */ 78extern symbolS *line_label; 79 80/* This is used to support MRI common sections. */ 81extern symbolS *mri_common_symbol; 82 83/* True if a stabs line debug statement is currently being emitted. */ 84extern int outputting_stabs_line_debug; 85 86/* Possible arguments to .linkonce. */ 87enum linkonce_type { 88 LINKONCE_UNSET = 0, 89 LINKONCE_DISCARD, 90 LINKONCE_ONE_ONLY, 91 LINKONCE_SAME_SIZE, 92 LINKONCE_SAME_CONTENTS 93}; 94 95#define IGNORE_OPCODE_CASE 96#ifdef IGNORE_OPCODE_CASE 97extern char original_case_string[]; 98#endif 99 100extern void pop_insert PARAMS ((const pseudo_typeS *)); 101extern unsigned int get_stab_string_offset 102 PARAMS ((const char *string, const char *stabstr_secname)); 103extern void aout_process_stab PARAMS ((int, const char *, int, int, int)); 104extern char *demand_copy_C_string PARAMS ((int *len_pointer)); 105extern char get_absolute_expression_and_terminator 106 PARAMS ((long *val_pointer)); 107extern offsetT get_absolute_expression PARAMS ((void)); 108extern unsigned int next_char_of_string PARAMS ((void)); 109extern void s_mri_sect PARAMS ((char *)); 110extern char *mri_comment_field PARAMS ((char *)); 111extern void mri_comment_end PARAMS ((char *, int)); 112extern void add_include_dir PARAMS ((char *path)); 113extern void cons PARAMS ((int nbytes)); 114extern void demand_empty_rest_of_line PARAMS ((void)); 115extern void emit_expr PARAMS ((expressionS *exp, unsigned int nbytes)); 116extern void emit_leb128_expr PARAMS ((expressionS *, int)); 117extern void equals PARAMS ((char *sym_name, int reassign)); 118extern void float_cons PARAMS ((int float_type)); 119extern void ignore_rest_of_line PARAMS ((void)); 120extern void discard_rest_of_line PARAMS ((void)); 121extern int output_leb128 PARAMS ((char *, valueT, int sign)); 122extern void pseudo_set PARAMS ((symbolS * symbolP)); 123extern void read_a_source_file PARAMS ((char *name)); 124extern void read_begin PARAMS ((void)); 125extern void read_print_statistics PARAMS ((FILE *)); 126extern int sizeof_leb128 PARAMS ((valueT, int sign)); 127extern void stabs_generate_asm_file PARAMS ((void)); 128extern void stabs_generate_asm_lineno PARAMS ((void)); 129extern void stabs_generate_asm_func PARAMS ((const char *, const char *)); 130extern void stabs_generate_asm_endfunc PARAMS ((const char *, const char *)); 131extern void do_repeat PARAMS((int,const char *,const char *)); 132extern void end_repeat PARAMS((int)); 133 134extern void generate_lineno_debug PARAMS ((void)); 135 136extern void s_abort PARAMS ((int)) ATTRIBUTE_NORETURN; 137extern void s_align_bytes PARAMS ((int arg)); 138extern void s_align_ptwo PARAMS ((int)); 139extern void s_app_file PARAMS ((int)); 140extern void s_app_line PARAMS ((int)); 141extern void s_comm PARAMS ((int)); 142extern void s_data PARAMS ((int)); 143extern void s_desc PARAMS ((int)); 144extern void s_else PARAMS ((int arg)); 145extern void s_elseif PARAMS ((int arg)); 146extern void s_end PARAMS ((int arg)); 147extern void s_endif PARAMS ((int arg)); 148extern void s_err PARAMS ((int)); 149extern void s_fail PARAMS ((int)); 150extern void s_fill PARAMS ((int)); 151extern void s_float_space PARAMS ((int mult)); 152extern void s_func PARAMS ((int)); 153extern void do_s_func PARAMS ((int, const char *)); 154extern void s_globl PARAMS ((int arg)); 155extern void s_if PARAMS ((int arg)); 156extern void s_ifc PARAMS ((int arg)); 157extern void s_ifdef PARAMS ((int arg)); 158extern void s_ifeqs PARAMS ((int arg)); 159extern void s_ignore PARAMS ((int arg)); 160extern void s_include PARAMS ((int arg)); 161extern void s_irp PARAMS ((int arg)); 162extern void s_lcomm PARAMS ((int needs_align)); 163extern void s_lcomm_bytes PARAMS ((int needs_align)); 164extern void s_leb128 PARAMS ((int sign)); 165extern void s_linkonce PARAMS ((int)); 166extern void s_lsym PARAMS ((int)); 167extern void s_macro PARAMS ((int)); 168extern void s_mexit PARAMS ((int)); 169extern void s_mri PARAMS ((int)); 170extern void s_mri_common PARAMS ((int)); 171extern void s_org PARAMS ((int)); 172extern void s_print PARAMS ((int)); 173extern void s_purgem PARAMS ((int)); 174extern void s_rept PARAMS ((int)); 175extern void s_set PARAMS ((int)); 176extern void s_space PARAMS ((int mult)); 177extern void s_stab PARAMS ((int what)); 178extern void s_struct PARAMS ((int)); 179extern void s_text PARAMS ((int)); 180extern void stringer PARAMS ((int append_zero)); 181extern void s_xstab PARAMS ((int what)); 182extern void s_rva PARAMS ((int)); 183