gas/read.h

   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
  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   {                                             \
  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
  58 extern char lex_type[];
  59 extern char is_end_of_line[];
  60
  61 extern int is_it_end_of_statement PARAMS ((void));
  62
  63 extern int target_big_endian;
  64
  65 /* These are initialized by the CPU specific target files (tc-*.c).  */
  66 extern const char comment_chars[];
  67 extern const char line_comment_chars[];
  68 extern const char line_separator_chars[];
  69
  70 /* Table of -I directories.  */
  71 extern char **include_dirs;
  72 extern int include_dir_count;
  73 extern int include_dir_maxlen;
  74
  75 /* The offset in the absolute section.  */
  76 extern addressT abs_section_offset;
  77
  78 /* The label on a line, used by some of the pseudo-ops.  */
  79 extern symbolS *line_label;
  80
  81 /* This is used to support MRI common sections.  */
  82 extern symbolS *mri_common_symbol;
  83
  84 /* True if a stabs line debug statement is currently being emitted.  */
  85 extern int outputting_stabs_line_debug;
  86
  87 /* Possible arguments to .linkonce.  */
  88 enum 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
  98 extern char original_case_string[];
  99 #endif
 100
 101 extern void pop_insert PARAMS ((const pseudo_typeS *));
 102 extern unsigned int get_stab_string_offset
 103   PARAMS ((const char *string, const char *stabstr_secname));
 104 extern void aout_process_stab PARAMS ((int, const char *, int, int, int));
 105 extern char *demand_copy_C_string PARAMS ((int *len_pointer));
 106 extern char get_absolute_expression_and_terminator
 107   PARAMS ((long *val_pointer));
 108 extern offsetT get_absolute_expression PARAMS ((void));
 109 extern unsigned int next_char_of_string PARAMS ((void));
 110 extern void s_mri_sect PARAMS ((char *));
 111 extern char *mri_comment_field PARAMS ((char *));
 112 extern void mri_comment_end PARAMS ((char *, int));
 113 extern void add_include_dir PARAMS ((char *path));
 114 extern void cons PARAMS ((int nbytes));
 115 extern void demand_empty_rest_of_line PARAMS ((void));
 116 extern void emit_expr PARAMS ((expressionS *exp, unsigned int nbytes));
 117 extern void emit_leb128_expr PARAMS ((expressionS *, int));
 118 extern void equals PARAMS ((char *sym_name, int reassign));
 119 extern void float_cons PARAMS ((int float_type));
 120 extern void ignore_rest_of_line PARAMS ((void));
 121 extern void discard_rest_of_line PARAMS ((void));
 122 extern int output_leb128 PARAMS ((char *, valueT, int sign));
 123 extern void pseudo_set PARAMS ((symbolS * symbolP));
 124 extern void read_a_source_file PARAMS ((char *name));
 125 extern void read_begin PARAMS ((void));
 126 extern void read_print_statistics PARAMS ((FILE *));
 127 extern int sizeof_leb128 PARAMS ((valueT, int sign));
 128 extern void stabs_generate_asm_file PARAMS ((void));
 129 extern void stabs_generate_asm_lineno PARAMS ((void));
 130 extern void stabs_generate_asm_func PARAMS ((const char *, const char *));
 131 extern void stabs_generate_asm_endfunc PARAMS ((const char *, const char *));
 132 extern void do_repeat PARAMS((int,const char *,const char *));
 133 extern void end_repeat PARAMS((int));
 134
 135 extern void generate_lineno_debug PARAMS ((void));
 136
 137 extern void s_abort PARAMS ((int)) ATTRIBUTE_NORETURN;
 138 extern void s_align_bytes PARAMS ((int arg));
 139 extern void s_align_ptwo PARAMS ((int));
 140 extern void s_app_file PARAMS ((int));
 141 extern void s_app_line PARAMS ((int));
 142 extern void s_comm PARAMS ((int));
 143 extern void s_data PARAMS ((int));
 144 extern void s_desc PARAMS ((int));
 145 extern void s_else PARAMS ((int arg));
 146 extern void s_elseif PARAMS ((int arg));
 147 extern void s_end PARAMS ((int arg));
 148 extern void s_endif PARAMS ((int arg));
 149 extern void s_err PARAMS ((int));
 150 extern void s_fail PARAMS ((int));
 151 extern void s_fill PARAMS ((int));
 152 extern void s_float_space PARAMS ((int mult));
 153 extern void s_func PARAMS ((int));
 154 extern void do_s_func PARAMS ((int, const char *));
 155 extern void s_globl PARAMS ((int arg));
 156 extern void s_if PARAMS ((int arg));
 157 extern void s_ifc PARAMS ((int arg));
 158 extern void s_ifdef PARAMS ((int arg));
 159 extern void s_ifeqs PARAMS ((int arg));
 160 extern void s_ignore PARAMS ((int arg));
 161 extern void s_include PARAMS ((int arg));
 162 extern void s_irp PARAMS ((int arg));
 163 extern void s_lcomm PARAMS ((int needs_align));
 164 extern void s_lcomm_bytes PARAMS ((int needs_align));
 165 extern void s_leb128 PARAMS ((int sign));
 166 extern void s_linkonce PARAMS ((int));
 167 extern void s_lsym PARAMS ((int));
 168 extern void s_macro PARAMS ((int));
 169 extern void s_mexit PARAMS ((int));
 170 extern void s_mri PARAMS ((int));
 171 extern void s_mri_common PARAMS ((int));
 172 extern void s_org PARAMS ((int));
 173 extern void s_print PARAMS ((int));
 174 extern void s_purgem PARAMS ((int));
 175 extern void s_rept PARAMS ((int));
 176 extern void s_set PARAMS ((int));
 177 extern void s_space PARAMS ((int mult));
 178 extern void s_stab PARAMS ((int what));
 179 extern void s_struct PARAMS ((int));
 180 extern void s_text PARAMS ((int));
 181 extern void stringer PARAMS ((int append_zero));
 182 extern void s_xstab PARAMS ((int what));
 183 extern void s_rva PARAMS ((int));