read.h revision 78828
1/* read.h - of read.c 2 Copyright 1986, 1990, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 3 2000 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 23extern 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 { \ 34 if (* input_line_pointer == ' ') \ 35 ++ input_line_pointer; \ 36 } 37#else 38#define SKIP_WHITESPACE() know(*input_line_pointer != ' ' ) 39#endif 40 41#define LEX_NAME (1) /* may continue a name */ 42#define LEX_BEGIN_NAME (2) /* may begin a name */ 43#define LEX_END_NAME (4) /* ends a name */ 44 45#define is_name_beginner(c) \ 46 ( lex_type[(unsigned char) (c)] & LEX_BEGIN_NAME ) 47#define is_part_of_name(c) \ 48 ( lex_type[(unsigned char) (c)] & LEX_NAME ) 49#define is_name_ender(c) \ 50 ( lex_type[(unsigned char) (c)] & LEX_END_NAME ) 51 52#ifndef is_a_char 53#define CHAR_MASK (0xff) 54#define NOT_A_CHAR (CHAR_MASK+1) 55#define is_a_char(c) (((unsigned) (c)) <= CHAR_MASK) 56#endif /* is_a_char() */ 57 58extern char lex_type[]; 59extern char is_end_of_line[]; 60 61extern int is_it_end_of_statement PARAMS ((void)); 62 63extern int target_big_endian; 64 65/* These are initialized by the CPU specific target files (tc-*.c). */ 66extern const char comment_chars[]; 67extern const char line_comment_chars[]; 68extern const char line_separator_chars[]; 69 70/* Table of -I directories. */ 71extern char **include_dirs; 72extern int include_dir_count; 73extern int include_dir_maxlen; 74 75/* The offset in the absolute section. */ 76extern addressT abs_section_offset; 77 78/* The label on a line, used by some of the pseudo-ops. */ 79extern symbolS *line_label; 80 81/* This is used to support MRI common sections. */ 82extern symbolS *mri_common_symbol; 83 84/* True if a stabs line debug statement is currently being emitted. */ 85extern int outputting_stabs_line_debug; 86 87/* Possible arguments to .linkonce. */ 88enum linkonce_type { 89 LINKONCE_UNSET = 0, 90 LINKONCE_DISCARD, 91 LINKONCE_ONE_ONLY, 92 LINKONCE_SAME_SIZE, 93 LINKONCE_SAME_CONTENTS 94}; 95 96#define IGNORE_OPCODE_CASE 97#ifdef IGNORE_OPCODE_CASE 98extern char original_case_string[]; 99#endif 100 101extern void pop_insert PARAMS ((const pseudo_typeS *)); 102extern unsigned int get_stab_string_offset 103 PARAMS ((const char *string, const char *stabstr_secname)); 104extern void aout_process_stab PARAMS ((int, const char *, int, int, int)); 105extern char *demand_copy_C_string PARAMS ((int *len_pointer)); 106extern char get_absolute_expression_and_terminator 107 PARAMS ((long *val_pointer)); 108extern offsetT get_absolute_expression PARAMS ((void)); 109extern unsigned int next_char_of_string PARAMS ((void)); 110extern void s_mri_sect PARAMS ((char *)); 111extern char *mri_comment_field PARAMS ((char *)); 112extern void mri_comment_end PARAMS ((char *, int)); 113extern void add_include_dir PARAMS ((char *path)); 114extern void cons PARAMS ((int nbytes)); 115extern void demand_empty_rest_of_line PARAMS ((void)); 116extern void emit_expr PARAMS ((expressionS *exp, unsigned int nbytes)); 117extern void emit_leb128_expr PARAMS ((expressionS *, int)); 118extern void equals PARAMS ((char *sym_name, int reassign)); 119extern void float_cons PARAMS ((int float_type)); 120extern void ignore_rest_of_line PARAMS ((void)); 121extern void discard_rest_of_line PARAMS ((void)); 122extern int output_leb128 PARAMS ((char *, valueT, int sign)); 123extern void pseudo_set PARAMS ((symbolS * symbolP)); 124extern void read_a_source_file PARAMS ((char *name)); 125extern void read_begin PARAMS ((void)); 126extern void read_print_statistics PARAMS ((FILE *)); 127extern int sizeof_leb128 PARAMS ((valueT, int sign)); 128extern void stabs_generate_asm_file PARAMS ((void)); 129extern void stabs_generate_asm_lineno PARAMS ((void)); 130extern void stabs_generate_asm_func PARAMS ((const char *, const char *)); 131extern void stabs_generate_asm_endfunc PARAMS ((const char *, const char *)); 132extern void do_repeat PARAMS((int,const char *,const char *)); 133extern void end_repeat PARAMS((int)); 134 135extern void generate_lineno_debug PARAMS ((void)); 136 137extern void s_abort PARAMS ((int)) ATTRIBUTE_NORETURN; 138extern void s_align_bytes PARAMS ((int arg)); 139extern void s_align_ptwo PARAMS ((int)); 140extern void s_app_file PARAMS ((int)); 141extern void s_app_line PARAMS ((int)); 142extern void s_comm PARAMS ((int)); 143extern void s_data PARAMS ((int)); 144extern void s_desc PARAMS ((int)); 145extern void s_else PARAMS ((int arg)); 146extern void s_elseif PARAMS ((int arg)); 147extern void s_end PARAMS ((int arg)); 148extern void s_endif PARAMS ((int arg)); 149extern void s_err PARAMS ((int)); 150extern void s_fail PARAMS ((int)); 151extern void s_fill PARAMS ((int)); 152extern void s_float_space PARAMS ((int mult)); 153extern void s_func PARAMS ((int)); 154extern void do_s_func PARAMS ((int, const char *)); 155extern void s_globl PARAMS ((int arg)); 156extern void s_if PARAMS ((int arg)); 157extern void s_ifc PARAMS ((int arg)); 158extern void s_ifdef PARAMS ((int arg)); 159extern void s_ifeqs PARAMS ((int arg)); 160extern void s_ignore PARAMS ((int arg)); 161extern void s_include PARAMS ((int arg)); 162extern void s_irp PARAMS ((int arg)); 163extern void s_lcomm PARAMS ((int needs_align)); 164extern void s_lcomm_bytes PARAMS ((int needs_align)); 165extern void s_leb128 PARAMS ((int sign)); 166extern void s_linkonce PARAMS ((int)); 167extern void s_lsym PARAMS ((int)); 168extern void s_macro PARAMS ((int)); 169extern void s_mexit PARAMS ((int)); 170extern void s_mri PARAMS ((int)); 171extern void s_mri_common PARAMS ((int)); 172extern void s_org PARAMS ((int)); 173extern void s_print PARAMS ((int)); 174extern void s_purgem PARAMS ((int)); 175extern void s_rept PARAMS ((int)); 176extern void s_set PARAMS ((int)); 177extern void s_space PARAMS ((int mult)); 178extern void s_stab PARAMS ((int what)); 179extern void s_struct PARAMS ((int)); 180extern void s_text PARAMS ((int)); 181extern void stringer PARAMS ((int append_zero)); 182extern void s_xstab PARAMS ((int what)); 183extern void s_rva PARAMS ((int)); 184