1 /* Header file for simulator argument handling. 2 Copyright (C) 1997-2013 Free Software Foundation, Inc. 3 Contributed by Cygnus Support. 4 5 This file is part of GDB, the GNU debugger. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 19 20 #ifndef SIM_OPTIONS_H 21 #define SIM_OPTIONS_H 22 23 #include "getopt.h" 24 25 /* ARGV option support. 26 27 Options for the standalone simulator are parsed by sim_open since 28 sim_open handles the large majority of them and it also parses the 29 options when invoked by gdb [or any external program]. 30 31 For OPTION_HANDLER: arg#2 is the processor to apply to option to 32 (all if NULL); arg#3 is the option index; arg#4 is the option's 33 argument, NULL if optional and missing; arg#5 is nonzero if a 34 command is being interpreted. */ 35 36 typedef SIM_RC (OPTION_HANDLER) PARAMS ((SIM_DESC, sim_cpu *, int, char *, int)); 37 38 /* Declare option handlers with a macro so it's usable on k&r systems. */ 39 #define DECLARE_OPTION_HANDLER(fn) SIM_RC fn PARAMS ((SIM_DESC, sim_cpu *, int, char *, int)) 40 41 typedef struct { 42 43 /* The long option information. */ 44 45 struct option opt; 46 47 /* The short option with the same meaning ('\0' if none). 48 49 For short options, when OPT.VAL is non-zero, it, instead of 50 SHORTOPT is passed to HANDLER. 51 52 For example, for the below: 53 54 { {"dc", no_argument, NULL, OPTION_VALUE}, 55 'd', NULL, "<<description>>", HANDLER}, 56 { {NULL, no_argument, NULL, OPTION_VALUE}, 57 'e', NULL, "<<description>>", HANDLER}, 58 59 the options --dc, -d and -e all result in OPTION_VALUE being 60 passed into HANDLER. */ 61 62 char shortopt; 63 64 /* The name of the argument (NULL if none). */ 65 66 const char *arg; 67 68 /* The documentation string. 69 70 If DOC is NULL, this option name is listed as a synonym for the 71 previous option. 72 73 If DOC and DOC_NAME are the empty string (i.e. ""), this option 74 is not listed in usage and help messages. 75 76 For example, given the aliased options --dc, --dp and -d, then: 77 78 { {"dc", no_argument, NULL, OPTION_DC}, 79 'd', NULL, "<<description>>", HANDLER}, 80 { {"dp", no_argument, NULL, OPTION_DP}, 81 '\0', NULL, NULL, HANDLER}, 82 83 will list ``-d, --dc, --dp <<description>>'' */ 84 85 const char *doc; 86 87 /* A function to process the option. */ 88 89 OPTION_HANDLER *handler; 90 91 /* The documentation name. Used when generating usage and help 92 messages. 93 94 If DOC and DOC_NAME are the empty string (i.e. ""), this option 95 is not listed in usage and help messages. 96 97 If DOC_NAME is a non-empty string then it, insted of OPT.NAME, is 98 listed as the name of the option in usage and help messages. 99 100 For example, given the options --set-pc and --set-sp, then: 101 102 { {"set-pc", no_argument, NULL, OPTION_SET_PC}, 103 '\0', NULL, "<<description>>", HANDLER, "--set-REGNAME" }, 104 { {"set-sp", no_argument, NULL, OPTION_SET_SP}, 105 '\0', NULL, "", HANDLER, "" }, 106 107 will list ``--set-REGNAME <<description>>". */ 108 109 const char *doc_name; 110 111 } OPTION; 112 113 /* All options that don't have a short form equivalent begin with this for 114 `val'. 130 isn't special, just some non-ASCII value to begin at. 115 Modules needn't worry about collisions here, the code dynamically assigned 116 the actual numbers used and then passes the original value to the option 117 handler. */ 118 #define OPTION_START 130 119 120 /* Identify valid option in the table */ 121 #define OPTION_VALID_P(O) ((O)->opt.name != NULL || (O)->shortopt != '\0') 122 123 /* List of options added by various modules. */ 124 typedef struct option_list { 125 struct option_list *next; 126 const OPTION *options; 127 } OPTION_LIST; 128 129 /* Add a set of options to the simulator. 130 CPU is the cpu the options apply to or NULL for all cpus. 131 TABLE is an array of OPTIONS terminated by a NULL `opt.name' entry. */ 132 SIM_RC sim_add_option_table PARAMS ((SIM_DESC sd, sim_cpu *cpu, const OPTION *table)); 133 134 /* Install handler for the standard options. */ 135 MODULE_INSTALL_FN standard_install; 136 137 /* Called by sim_open to parse the arguments. */ 138 SIM_RC sim_parse_args PARAMS ((SIM_DESC sd, char **argv)); 139 140 /* Print help messages for the options. IS_COMMAND is non-zero when 141 this function is called from the command line interpreter. */ 142 void sim_print_help PARAMS ((SIM_DESC sd, int is_command)); 143 144 /* Try to parse the command as if it is an option, Only fail when 145 totally unsuccessful */ 146 SIM_RC sim_args_command PARAMS ((SIM_DESC sd, char *cmd)); 147 148 #endif /* SIM_OPTIONS_H */ 149