read.h 7.0 KB

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  1. /* read.h - of read.c
  2. Copyright (C) 1986-2015 Free Software Foundation, Inc.
  3. This file is part of GAS, the GNU Assembler.
  4. GAS is free software; you can redistribute it and/or modify
  5. it under the terms of the GNU General Public License as published by
  6. the Free Software Foundation; either version 3, or (at your option)
  7. any later version.
  8. GAS is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11. GNU General Public License for more details.
  12. You should have received a copy of the GNU General Public License
  13. along with GAS; see the file COPYING. If not, write to the Free
  14. Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
  15. 02110-1301, USA. */
  16. extern char *input_line_pointer; /* -> char we are parsing now. */
  17. /* Define to make whitespace be allowed in many syntactically
  18. unnecessary places. Normally undefined. For compatibility with
  19. ancient GNU cc. */
  20. /* #undef PERMIT_WHITESPACE */
  21. #define PERMIT_WHITESPACE
  22. #ifdef PERMIT_WHITESPACE
  23. #define SKIP_WHITESPACE() \
  24. ((*input_line_pointer == ' ') ? ++input_line_pointer : 0)
  25. #else
  26. #define SKIP_WHITESPACE() know(*input_line_pointer != ' ' )
  27. #endif
  28. #define SKIP_WHITESPACE_AFTER_NAME() \
  29. do \
  30. { \
  31. if (* input_line_pointer == '"') \
  32. ++ input_line_pointer; \
  33. if (* input_line_pointer == ' ') \
  34. ++ input_line_pointer; \
  35. } \
  36. while (0)
  37. #define LEX_NAME (1) /* may continue a name */
  38. #define LEX_BEGIN_NAME (2) /* may begin a name */
  39. #define LEX_END_NAME (4) /* ends a name */
  40. #define is_name_beginner(c) \
  41. ( lex_type[(unsigned char) (c)] & LEX_BEGIN_NAME )
  42. #define is_part_of_name(c) \
  43. ( lex_type[(unsigned char) (c)] & LEX_NAME )
  44. #define is_name_ender(c) \
  45. ( lex_type[(unsigned char) (c)] & LEX_END_NAME )
  46. #ifndef is_a_char
  47. #define CHAR_MASK (0xff)
  48. #define NOT_A_CHAR (CHAR_MASK+1)
  49. #define is_a_char(c) (((unsigned) (c)) <= CHAR_MASK)
  50. #endif /* is_a_char() */
  51. extern char lex_type[];
  52. extern char is_end_of_line[];
  53. extern int is_it_end_of_statement (void);
  54. extern char *find_end_of_line (char *, int);
  55. extern int target_big_endian;
  56. /* These are initialized by the CPU specific target files (tc-*.c). */
  57. extern const char comment_chars[];
  58. extern const char line_comment_chars[];
  59. extern const char line_separator_chars[];
  60. /* Table of -I directories. */
  61. extern char **include_dirs;
  62. extern int include_dir_count;
  63. extern int include_dir_maxlen;
  64. /* The offset in the absolute section. */
  65. extern addressT abs_section_offset;
  66. /* The label on a line, used by some of the pseudo-ops. */
  67. extern symbolS *line_label;
  68. /* This is used to support MRI common sections. */
  69. extern symbolS *mri_common_symbol;
  70. /* True if a stabs line debug statement is currently being emitted. */
  71. extern int outputting_stabs_line_debug;
  72. /* Possible arguments to .linkonce. */
  73. enum linkonce_type {
  74. LINKONCE_UNSET = 0,
  75. LINKONCE_DISCARD,
  76. LINKONCE_ONE_ONLY,
  77. LINKONCE_SAME_SIZE,
  78. LINKONCE_SAME_CONTENTS
  79. };
  80. #ifndef TC_CASE_SENSITIVE
  81. extern char original_case_string[];
  82. #endif
  83. #ifndef TC_PARSE_CONS_RETURN_TYPE
  84. #define TC_PARSE_CONS_RETURN_TYPE bfd_reloc_code_real_type
  85. #define TC_PARSE_CONS_RETURN_NONE BFD_RELOC_NONE
  86. #endif
  87. extern void pop_insert (const pseudo_typeS *);
  88. extern unsigned int get_stab_string_offset
  89. (const char *string, const char *stabstr_secname);
  90. extern void aout_process_stab (int, const char *, int, int, int);
  91. extern char *demand_copy_string (int *lenP);
  92. extern char *demand_copy_C_string (int *len_pointer);
  93. extern char get_absolute_expression_and_terminator (long *val_pointer);
  94. extern offsetT get_absolute_expression (void);
  95. extern unsigned int next_char_of_string (void);
  96. extern void s_mri_sect (char *);
  97. extern char *mri_comment_field (char *);
  98. extern void mri_comment_end (char *, int);
  99. extern void add_include_dir (char *path);
  100. extern void cons (int nbytes);
  101. extern void demand_empty_rest_of_line (void);
  102. extern void emit_expr (expressionS *exp, unsigned int nbytes);
  103. extern void emit_expr_with_reloc (expressionS *exp, unsigned int nbytes,
  104. TC_PARSE_CONS_RETURN_TYPE);
  105. extern void emit_expr_fix (expressionS *, unsigned int, fragS *, char *,
  106. TC_PARSE_CONS_RETURN_TYPE);
  107. extern void equals (char *sym_name, int reassign);
  108. extern void float_cons (int float_type);
  109. extern void ignore_rest_of_line (void);
  110. #define discard_rest_of_line ignore_rest_of_line
  111. extern int output_leb128 (char *, valueT, int sign);
  112. extern void pseudo_set (symbolS * symbolP);
  113. extern void read_a_source_file (char *name);
  114. extern void read_begin (void);
  115. extern void read_print_statistics (FILE *);
  116. extern char *read_symbol_name (void);
  117. extern int sizeof_leb128 (valueT, int sign);
  118. extern void stabs_generate_asm_file (void);
  119. extern void stabs_generate_asm_lineno (void);
  120. extern void stabs_generate_asm_func (const char *, const char *);
  121. extern void stabs_generate_asm_endfunc (const char *, const char *);
  122. extern void do_repeat (int,const char *,const char *);
  123. extern void do_repeat_with_expander (int, const char *, const char *, const char *);
  124. extern void end_repeat (int);
  125. extern void do_parse_cons_expression (expressionS *, int);
  126. extern void generate_lineno_debug (void);
  127. extern void s_abort (int) ATTRIBUTE_NORETURN;
  128. extern void s_align_bytes (int arg);
  129. extern void s_align_ptwo (int);
  130. extern void bss_alloc (symbolS *, addressT, int);
  131. extern offsetT parse_align (int);
  132. extern symbolS *s_comm_internal (int, symbolS *(*) (int, symbolS *, addressT));
  133. extern symbolS *s_lcomm_internal (int, symbolS *, addressT);
  134. extern void s_app_file_string (char *, int);
  135. extern void s_app_file (int);
  136. extern void s_app_line (int);
  137. extern void s_bundle_align_mode (int);
  138. extern void s_bundle_lock (int);
  139. extern void s_bundle_unlock (int);
  140. extern void s_comm (int);
  141. extern void s_data (int);
  142. extern void s_desc (int);
  143. extern void s_else (int arg);
  144. extern void s_elseif (int arg);
  145. extern void s_end (int arg);
  146. extern void s_endif (int arg);
  147. extern void s_err (int);
  148. extern void s_errwarn (int);
  149. extern void s_fail (int);
  150. extern void s_fill (int);
  151. extern void s_float_space (int mult);
  152. extern void s_func (int);
  153. extern void s_globl (int arg);
  154. extern void s_if (int arg);
  155. extern void s_ifb (int arg);
  156. extern void s_ifc (int arg);
  157. extern void s_ifdef (int arg);
  158. extern void s_ifeqs (int arg);
  159. extern void s_ignore (int arg);
  160. extern void s_include (int arg);
  161. extern void s_irp (int arg);
  162. extern void s_lcomm (int needs_align);
  163. extern void s_lcomm_bytes (int needs_align);
  164. extern void s_leb128 (int sign);
  165. extern void s_linkonce (int);
  166. extern void s_lsym (int);
  167. extern void s_macro (int);
  168. extern void s_mexit (int);
  169. extern void s_mri (int);
  170. extern void s_mri_common (int);
  171. extern void s_org (int);
  172. extern void s_print (int);
  173. extern void s_purgem (int);
  174. extern void s_rept (int);
  175. extern void s_set (int);
  176. extern void s_space (int mult);
  177. extern void s_stab (int what);
  178. extern void s_struct (int);
  179. extern void s_text (int);
  180. extern void stringer (int append_zero);
  181. extern void s_xstab (int what);
  182. extern void s_rva (int);
  183. extern void s_incbin (int);
  184. extern void s_weakref (int);