gcc/toplev.h

   1 /* toplev.h - Various declarations for functions found in toplev.c
   2    Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 2, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING.  If not, write to the Free
  18 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  19 02111-1307, USA.  */
  20
  21 #ifndef GCC_TOPLEV_H
  22 #define GCC_TOPLEV_H
  23
  24 #ifdef ANSI_PROTOTYPES
  25 union tree_node;
  26 struct rtx_def;
  27 #endif
  28
  29 /* If non-NULL, return one past-the-end of the matching SUBPART of
  30    the WHOLE string.  */
  31 #define skip_leading_substring(whole,  part) \
  32    (strncmp (whole, part, strlen (part)) ? NULL : whole + strlen (part))
  33
  34 extern int toplev_main                  PARAMS ((int argc, char **argv));
  35 extern int read_integral_parameter      PARAMS ((const char *, const char *,
  36                                                 const int));
  37 extern int count_error                  PARAMS ((int));
  38 extern void strip_off_ending            PARAMS ((char *, int));
  39 extern void print_time                  PARAMS ((const char *, long));
  40 extern const char *trim_filename        PARAMS ((const char *));
  41 extern void internal_error              PARAMS ((const char *, ...))
  42                                                ATTRIBUTE_NORETURN;
  43 extern void fatal_io_error              PARAMS ((const char *, ...))
  44                                                ATTRIBUTE_NORETURN;
  45 extern void _fatal_insn_not_found       PARAMS ((struct rtx_def *,
  46                                                 const char *, int,
  47                                                 const char *))
  48                                                ATTRIBUTE_NORETURN;
  49 extern void _fatal_insn                 PARAMS ((const char *,
  50                                                 struct rtx_def *,
  51                                                 const char *, int,
  52                                                 const char *))
  53                                               ATTRIBUTE_NORETURN;
  54
  55 #define fatal_insn(msgid, insn) \
  56         _fatal_insn (msgid, insn, __FILE__, __LINE__, __FUNCTION__)
  57 #define fatal_insn_not_found(insn) \
  58         _fatal_insn_not_found (insn, __FILE__, __LINE__, __FUNCTION__)
  59
  60 /* None of these functions are suitable for ATTRIBUTE_PRINTF, because
  61    each language front end can extend them with its own set of format
  62    specifiers.  */
  63 extern void warning                     PARAMS ((const char *, ...));
  64 extern void error                       PARAMS ((const char *, ...));
  65 extern void fatal_error                 PARAMS ((const char *, ...))
  66                                                ATTRIBUTE_NORETURN;
  67 extern void pedwarn                     PARAMS ((const char *, ...));
  68 extern void pedwarn_with_file_and_line  PARAMS ((const char *, int,
  69                                                  const char *, ...));
  70 extern void warning_with_file_and_line  PARAMS ((const char *, int,
  71                                                  const char *, ...));
  72 extern void error_with_file_and_line    PARAMS ((const char *, int,
  73                                                  const char *, ...));
  74 extern void sorry                       PARAMS ((const char *, ...));
  75 extern void report_error_function       PARAMS ((const char *));
  76
  77 extern void rest_of_decl_compilation    PARAMS ((union tree_node *,
  78                                                 const char *, int, int));
  79 extern void rest_of_type_compilation    PARAMS ((union tree_node *, int));
  80 extern void rest_of_compilation         PARAMS ((union tree_node *));
  81
  82 extern void pedwarn_with_decl           PARAMS ((union tree_node *,
  83                                                  const char *, ...));
  84 extern void warning_with_decl           PARAMS ((union tree_node *,
  85                                                  const char *, ...));
  86 extern void error_with_decl             PARAMS ((union tree_node *,
  87                                                  const char *, ...));
  88
  89 extern void announce_function           PARAMS ((union tree_node *));
  90
  91 extern void error_for_asm               PARAMS ((struct rtx_def *,
  92                                                  const char *, ...));
  93 extern void warning_for_asm             PARAMS ((struct rtx_def *,
  94                                                  const char *, ...));
  95 extern int do_float_handler PARAMS ((void (*) (PTR), PTR));
  96
  97 #ifdef BUFSIZ
  98 extern void output_quoted_string        PARAMS ((FILE *, const char *));
  99 extern void output_file_directive       PARAMS ((FILE *, const char *));
 100 #endif
 101 extern void do_abort                    PARAMS ((void)) ATTRIBUTE_NORETURN;
 102 extern void botch                       PARAMS ((const char *))
 103   ATTRIBUTE_NORETURN;
 104
 105 #ifdef BUFSIZ
 106   /* N.B. Unlike all the others, fnotice is just gettext+fprintf, and
 107      therefore it can have ATTRIBUTE_PRINTF.  */
 108 extern void fnotice                     PARAMS ((FILE *, const char *, ...))
 109                                                ATTRIBUTE_PRINTF_2;
 110 #endif
 111
 112 extern int wrapup_global_declarations   PARAMS ((union tree_node **, int));
 113 extern void check_global_declarations   PARAMS ((union tree_node **, int));
 114
 115 extern const char *progname;
 116 extern const char *dump_base_name;
 117
 118 /* The following hooks are documented in langhooks.c.  Must not be
 119    NULL.  */
 120
 121 struct lang_hooks_for_tree_inlining
 122 {
 123   union tree_node *(*walk_subtrees) PARAMS ((union tree_node **, int *,
 124                                              union tree_node *(*)
 125                                              (union tree_node **,
 126                                               int *, void *),
 127                                              void *, void *));
 128   int (*cannot_inline_tree_fn) PARAMS ((union tree_node **));
 129   int (*disregard_inline_limits) PARAMS ((union tree_node *));
 130   union tree_node *(*add_pending_fn_decls) PARAMS ((void*, union tree_node *));
 131   int (*tree_chain_matters_p) PARAMS ((union tree_node *));
 132   int (*auto_var_in_fn_p) PARAMS ((union tree_node *, union tree_node *));
 133   union tree_node *(*copy_res_decl_for_inlining) PARAMS ((union tree_node *,
 134                                                           union tree_node *,
 135                                                           union tree_node *,
 136                                                           void *, int *,
 137                                                           void *));
 138   int (*anon_aggr_type_p) PARAMS ((union tree_node *));
 139 };
 140
 141 /* Language-specific hooks.  Can be NULL unless otherwise specified.  */
 142
 143 struct lang_hooks
 144 {
 145   /* Called first, to initialize the front end.  */
 146   void (*init) PARAMS ((void));
 147
 148   /* Called last, as a finalizer.  */
 149   void (*finish) PARAMS ((void));
 150
 151   /* Called to initialize options, before any calls to decode_option.  */
 152   void (*init_options) PARAMS ((void));
 153
 154   /* Function called with an option vector as argument, to decode a
 155      single option (typically starting with -f or -W or +).  It should
 156      return the number of command-line arguments it uses if it handles
 157      the option, or 0 and not complain if it does not recognise the
 158      option.  If this function returns a negative number, then its
 159      absolute value is the number of command-line arguments used, but,
 160      in addition, no language-independent option processing should be
 161      done for this option.
 162
 163      This hook cannot be NULL.  */
 164   int (*decode_option) PARAMS ((int, char **));
 165
 166   /* Called when all command line options have been processed.  */
 167   void (*post_options) PARAMS ((void));
 168
 169   struct lang_hooks_for_tree_inlining tree_inlining;
 170
 171   /* Whenever you add entries here, make sure you adjust langhooks.h
 172      and langhooks.c accordingly.  */
 173 };
 174
 175 /* Each front end provides its own.  */
 176 extern struct lang_hooks lang_hooks;
 177
 178 /* The hashtable, so that the C front ends can pass it to cpplib.  */
 179 extern struct ht *ident_hash;
 180
 181 /* These functions can be used by targets to set the flags originally
 182    implied by -ffast-math and -fno-fast-math.  */
 183
 184 extern void set_fast_math_flags         PARAMS ((void));
 185 extern void set_no_fast_math_flags      PARAMS ((void));
 186
 187 /* The following functions accept a wide integer argument.  Rather
 188    than having to cast on every function call, we use a macro instead.  */
 189
 190 #ifndef exact_log2
 191 #define exact_log2(N) exact_log2_wide ((unsigned HOST_WIDE_INT) (N))
 192 #define floor_log2(N) floor_log2_wide ((unsigned HOST_WIDE_INT) (N))
 193 #endif
 194 extern int exact_log2_wide             PARAMS ((unsigned HOST_WIDE_INT));
 195 extern int floor_log2_wide             PARAMS ((unsigned HOST_WIDE_INT));
 196
 197 #endif /* ! GCC_TOPLEV_H */