gas/read.h

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