gas/read.h

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