read.h revision 130561
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 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 ((*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 55extern char lex_type[]; 56extern char is_end_of_line[]; 57 58extern int is_it_end_of_statement (void); 59 60extern int target_big_endian; 61 62/* These are initialized by the CPU specific target files (tc-*.c). */ 63extern const char comment_chars[]; 64extern const char line_comment_chars[]; 65extern const char line_separator_chars[]; 66 67/* Table of -I directories. */ 68extern char **include_dirs; 69extern int include_dir_count; 70extern int include_dir_maxlen; 71 72/* The offset in the absolute section. */ 73extern addressT abs_section_offset; 74 75/* The label on a line, used by some of the pseudo-ops. */ 76extern symbolS *line_label; 77 78/* This is used to support MRI common sections. */ 79extern symbolS *mri_common_symbol; 80 81/* True if a stabs line debug statement is currently being emitted. */ 82extern int outputting_stabs_line_debug; 83 84/* Possible arguments to .linkonce. */ 85enum 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 94extern char original_case_string[]; 95#endif 96 97extern void pop_insert (const pseudo_typeS *); 98extern unsigned int get_stab_string_offset 99 (const char *string, const char *stabstr_secname); 100extern void aout_process_stab (int, const char *, int, int, int); 101extern char *demand_copy_string (int *lenP); 102extern char *demand_copy_C_string (int *len_pointer); 103extern char get_absolute_expression_and_terminator (long *val_pointer); 104extern offsetT get_absolute_expr (expressionS *); 105extern offsetT get_absolute_expression (void); 106extern unsigned int next_char_of_string (void); 107extern void s_mri_sect (char *); 108extern char *mri_comment_field (char *); 109extern void mri_comment_end (char *, int); 110extern void add_include_dir (char *path); 111extern void cons (int nbytes); 112extern void demand_empty_rest_of_line (void); 113extern void emit_expr (expressionS *exp, unsigned int nbytes); 114extern void emit_leb128_expr (expressionS *, int); 115extern void equals (char *sym_name, int reassign); 116extern void float_cons (int float_type); 117extern void ignore_rest_of_line (void); 118extern void discard_rest_of_line (void); 119extern int output_leb128 (char *, valueT, int sign); 120extern void pseudo_set (symbolS * symbolP); 121extern void read_a_source_file (char *name); 122extern void read_begin (void); 123extern void read_print_statistics (FILE *); 124extern int sizeof_leb128 (valueT, int sign); 125extern void stabs_generate_asm_file (void); 126extern void stabs_generate_asm_lineno (void); 127extern void stabs_generate_asm_func (const char *, const char *); 128extern void stabs_generate_asm_endfunc (const char *, const char *); 129extern void do_repeat (int,const char *,const char *); 130extern void end_repeat (int); 131extern void do_parse_cons_expression (expressionS *, int); 132 133extern void generate_lineno_debug (void); 134 135extern void s_abort (int) ATTRIBUTE_NORETURN; 136extern void s_align_bytes (int arg); 137extern void s_align_ptwo (int); 138extern void bss_alloc (symbolS *, addressT, int); 139extern offsetT parse_align (int); 140extern symbolS *s_comm_internal (int, symbolS *(*) (int, symbolS *, addressT)); 141extern symbolS *s_lcomm_internal (int, symbolS *, addressT); 142extern void s_app_file_string (char *); 143extern void s_app_file (int); 144extern void s_app_line (int); 145extern void s_bad_endr (int); 146extern void s_comm (int); 147extern void s_data (int); 148extern void s_desc (int); 149extern void s_else (int arg); 150extern void s_elseif (int arg); 151extern void s_end (int arg); 152extern void s_endif (int arg); 153extern void s_err (int); 154extern void s_fail (int); 155extern void s_fill (int); 156extern void s_float_space (int mult); 157extern void s_func (int); 158extern void do_s_func (int, const char *); 159extern void s_globl (int arg); 160extern void s_if (int arg); 161extern void s_ifc (int arg); 162extern void s_ifdef (int arg); 163extern void s_ifeqs (int arg); 164extern void s_ignore (int arg); 165extern void s_include (int arg); 166extern void s_irp (int arg); 167extern void s_lcomm (int needs_align); 168extern void s_lcomm_bytes (int needs_align); 169extern void s_leb128 (int sign); 170extern void s_linkonce (int); 171extern void s_lsym (int); 172extern void s_macro (int); 173extern void s_mexit (int); 174extern void s_mri (int); 175extern void s_mri_common (int); 176extern void s_org (int); 177extern void s_print (int); 178extern void s_purgem (int); 179extern void s_rept (int); 180extern void s_set (int); 181extern void s_space (int mult); 182extern void s_stab (int what); 183extern void s_struct (int); 184extern void s_text (int); 185extern void stringer (int append_zero); 186extern void s_xstab (int what); 187extern void s_rva (int); 188extern void s_incbin (int); 189