gcc/opts.h

   1 /* Command line option handling.
   2    Copyright (C) 2002, 2003, 2004, 2005 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_OPTS_H
  22 #define GCC_OPTS_H
  23
  24 /* Specifies how a switch's VAR_VALUE relates to its FLAG_VAR.  */
  25 enum cl_var_cond {
  26   /* The switch is enabled when FLAG_VAR is nonzero.  */
  27   CLVC_BOOLEAN,
  28
  29   /* The switch is enabled when FLAG_VAR == VAR_VALUE.  */
  30   CLVC_EQUAL,
  31
  32   /* The switch is enabled when VAR_VALUE is not set in FLAG_VAR.  */
  33   CLVC_BIT_CLEAR,
  34
  35   /* The switch is enabled when VAR_VALUE is set in FLAG_VAR.  */
  36   CLVC_BIT_SET
  37 };
  38
  39 struct cl_option
  40 {
  41   const char *opt_text;
  42   const char *help;
  43   unsigned short back_chain;
  44   unsigned char opt_len;
  45   unsigned int flags;
  46   int *flag_var;
  47   enum cl_var_cond var_cond;
  48   int var_value;
  49 };
  50
  51 extern const struct cl_option cl_options[];
  52 extern const unsigned int cl_options_count;
  53 extern const char *const lang_names[];
  54
  55 #define CL_TARGET               (1 << 22) /* Target-specific option.  */
  56 #define CL_REPORT               (1 << 23) /* Report argument with -fverbose-asm  */
  57 #define CL_JOINED               (1 << 24) /* If takes joined argument.  */
  58 #define CL_SEPARATE             (1 << 25) /* If takes a separate argument.  */
  59 #define CL_REJECT_NEGATIVE      (1 << 26) /* Reject no- form.  */
  60 #define CL_MISSING_OK           (1 << 27) /* Missing argument OK (joined).  */
  61 #define CL_UINTEGER             (1 << 28) /* Argument is an integer >=0.  */
  62 #define CL_COMMON               (1 << 29) /* Language-independent.  */
  63 #define CL_UNDOCUMENTED         (1 << 30) /* Do not output with --help.  */
  64
  65 /* Input file names.  */
  66
  67 extern const char **in_fnames;
  68
  69 /* The count of input filenames.  */
  70
  71 extern unsigned num_in_fnames;
  72
  73 extern void decode_options (unsigned int argc, const char **argv);
  74 extern int option_enabled (const struct cl_option *);
  75 extern void print_filtered_help (unsigned int);
  76
  77 #endif