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, 51 Franklin Street, Fifth Floor, Boston, MA 19 02110-1301, 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_type { 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 /* The switch takes a string argument and FLAG_VAR points to that 39 argument. */ 40 CLVC_STRING 41 }; 42 43 struct cl_option 44 { 45 const char *opt_text; 46 const char *help; 47 unsigned short back_chain; 48 unsigned char opt_len; 49 int neg_index; 50 unsigned int flags; 51 void *flag_var; 52 enum cl_var_type var_type; 53 int var_value; 54 }; 55 56 /* Records that the state of an option consists of SIZE bytes starting 57 at DATA. DATA might point to CH in some cases. */ 58 struct cl_option_state { 59 const void *data; 60 size_t size; 61 char ch; 62 }; 63 64 extern const struct cl_option cl_options[]; 65 extern const unsigned int cl_options_count; 66 extern const char *const lang_names[]; 67 extern bool no_unit_at_a_time_default; 68 69 #define CL_DISABLED (1 << 21) /* Disabled in this configuration. */ 70 #define CL_TARGET (1 << 22) /* Target-specific option. */ 71 #define CL_REPORT (1 << 23) /* Report argument with -fverbose-asm */ 72 #define CL_JOINED (1 << 24) /* If takes joined argument. */ 73 #define CL_SEPARATE (1 << 25) /* If takes a separate argument. */ 74 #define CL_REJECT_NEGATIVE (1 << 26) /* Reject no- form. */ 75 #define CL_MISSING_OK (1 << 27) /* Missing argument OK (joined). */ 76 #define CL_UINTEGER (1 << 28) /* Argument is an integer >=0. */ 77 #define CL_COMMON (1 << 29) /* Language-independent. */ 78 #define CL_UNDOCUMENTED (1 << 30) /* Do not output with --help. */ 79 80 /* Input file names. */ 81 82 extern const char **in_fnames; 83 84 /* The count of input filenames. */ 85 86 extern unsigned num_in_fnames; 87 88 size_t find_opt (const char *input, int lang_mask); 89 extern void prune_options (int *argcp, char ***argvp); 90 extern void decode_options (unsigned int argc, const char **argv); 91 extern void late_options_error (void); 92 extern int option_enabled (int opt_idx); 93 extern bool get_option_state (int, struct cl_option_state *); 94 95 #endif 96