1 #ifndef __PERF_PARSE_OPTIONS_H
2 #define __PERF_PARSE_OPTIONS_H
4 #include <linux/kernel.h>
12 /* options with no arguments */
18 /* options with arguments (usually) */
27 enum parse_opt_flags {
28 PARSE_OPT_KEEP_DASHDASH = 1,
29 PARSE_OPT_STOP_AT_NON_OPTION = 2,
30 PARSE_OPT_KEEP_ARGV0 = 4,
31 PARSE_OPT_KEEP_UNKNOWN = 8,
32 PARSE_OPT_NO_INTERNAL_HELP = 16,
35 enum parse_opt_option_flags {
40 PARSE_OPT_LASTARG_DEFAULT = 16,
41 PARSE_OPT_DISABLED = 32,
42 PARSE_OPT_EXCLUSIVE = 64,
46 typedef int parse_opt_cb(const struct option *, const char *arg, int unset);
50 * holds the type of the option, you must have an OPTION_END last in your
54 * the character to use as a short option name, '\0' if none.
57 * the long option name, without the leading dashes, NULL if none.
60 * stores pointers to the values to be filled.
63 * token to explain the kind of argument this option wants. Keep it
64 * homogenous across the repository.
67 * the short help associated to what the option does.
68 * Must never be NULL (except for OPTION_END).
69 * OPTION_GROUP uses this pointer to store the group header.
72 * mask of parse_opt_option_flags.
73 * PARSE_OPT_OPTARG: says that the argument is optionnal (not for BOOLEANs)
74 * PARSE_OPT_NOARG: says that this option takes no argument, for CALLBACKs
75 * PARSE_OPT_NONEG: says that this option cannot be negated
76 * PARSE_OPT_HIDDEN this option is skipped in the default usage, showed in
80 * pointer to the callback to use for OPTION_CALLBACK.
83 * default value to fill (*->value) with for PARSE_OPT_OPTARG.
84 * OPTION_{BIT,SET_UINT,SET_PTR} store the {mask,integer,pointer} to put in
86 * CALLBACKS can use it like they want.
89 * whether an option was set by the user
92 enum parse_opt_type type;
94 const char *long_name;
100 parse_opt_cb *callback;
106 #define check_vtype(v, type) ( BUILD_BUG_ON_ZERO(!__builtin_types_compatible_p(typeof(v), type)) + v )
108 #define OPT_END() { .type = OPTION_END }
109 #define OPT_ARGUMENT(l, h) { .type = OPTION_ARGUMENT, .long_name = (l), .help = (h) }
110 #define OPT_GROUP(h) { .type = OPTION_GROUP, .help = (h) }
111 #define OPT_BIT(s, l, v, h, b) { .type = OPTION_BIT, .short_name = (s), .long_name = (l), .value = check_vtype(v, int *), .help = (h), .defval = (b) }
112 #define OPT_BOOLEAN(s, l, v, h) { .type = OPTION_BOOLEAN, .short_name = (s), .long_name = (l), .value = check_vtype(v, bool *), .help = (h) }
113 #define OPT_BOOLEAN_SET(s, l, v, os, h) \
114 { .type = OPTION_BOOLEAN, .short_name = (s), .long_name = (l), \
115 .value = check_vtype(v, bool *), .help = (h), \
116 .set = check_vtype(os, bool *)}
117 #define OPT_INCR(s, l, v, h) { .type = OPTION_INCR, .short_name = (s), .long_name = (l), .value = check_vtype(v, int *), .help = (h) }
118 #define OPT_SET_UINT(s, l, v, h, i) { .type = OPTION_SET_UINT, .short_name = (s), .long_name = (l), .value = check_vtype(v, unsigned int *), .help = (h), .defval = (i) }
119 #define OPT_SET_PTR(s, l, v, h, p) { .type = OPTION_SET_PTR, .short_name = (s), .long_name = (l), .value = (v), .help = (h), .defval = (p) }
120 #define OPT_INTEGER(s, l, v, h) { .type = OPTION_INTEGER, .short_name = (s), .long_name = (l), .value = check_vtype(v, int *), .help = (h) }
121 #define OPT_UINTEGER(s, l, v, h) { .type = OPTION_UINTEGER, .short_name = (s), .long_name = (l), .value = check_vtype(v, unsigned int *), .help = (h) }
122 #define OPT_LONG(s, l, v, h) { .type = OPTION_LONG, .short_name = (s), .long_name = (l), .value = check_vtype(v, long *), .help = (h) }
123 #define OPT_U64(s, l, v, h) { .type = OPTION_U64, .short_name = (s), .long_name = (l), .value = check_vtype(v, u64 *), .help = (h) }
124 #define OPT_STRING(s, l, v, a, h) { .type = OPTION_STRING, .short_name = (s), .long_name = (l), .value = check_vtype(v, const char **), (a), .help = (h) }
125 #define OPT_DATE(s, l, v, h) \
126 { .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l), .value = (v), .argh = "time", .help = (h), .callback = parse_opt_approxidate_cb }
127 #define OPT_CALLBACK(s, l, v, a, h, f) \
128 { .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l), .value = (v), (a), .help = (h), .callback = (f) }
129 #define OPT_CALLBACK_NOOPT(s, l, v, a, h, f) \
130 { .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l), .value = (v), (a), .help = (h), .callback = (f), .flags = PARSE_OPT_NOARG }
131 #define OPT_CALLBACK_DEFAULT(s, l, v, a, h, f, d) \
132 { .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l), .value = (v), (a), .help = (h), .callback = (f), .defval = (intptr_t)d, .flags = PARSE_OPT_LASTARG_DEFAULT }
133 #define OPT_CALLBACK_DEFAULT_NOOPT(s, l, v, a, h, f, d) \
134 { .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l),\
135 .value = (v), (a), .help = (h), .callback = (f), .defval = (intptr_t)d,\
136 .flags = PARSE_OPT_LASTARG_DEFAULT | PARSE_OPT_NOARG}
137 #define OPT_CALLBACK_OPTARG(s, l, v, d, a, h, f) \
138 { .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l), \
139 .value = (v), (a), .help = (h), .callback = (f), \
140 .flags = PARSE_OPT_OPTARG, .data = (d) }
142 /* parse_options() will filter out the processed options and leave the
143 * non-option argments in argv[].
144 * Returns the number of arguments left in argv[].
146 extern int parse_options(int argc, const char **argv,
147 const struct option *options,
148 const char * const usagestr[], int flags);
150 extern int parse_options_subcommand(int argc, const char **argv,
151 const struct option *options,
152 const char *const subcommands[],
153 const char *usagestr[], int flags);
155 extern NORETURN void usage_with_options(const char * const *usagestr,
156 const struct option *options);
158 /*----- incremantal advanced APIs -----*/
164 PARSE_OPT_LIST_SUBCMDS,
169 * It's okay for the caller to consume argv/argc in the usual way.
170 * Other fields of that structure are private to parse-options and should not
171 * be modified in any way.
173 struct parse_opt_ctx_t {
178 const struct option *excl_opt;
182 extern int parse_options_usage(const char * const *usagestr,
183 const struct option *opts,
187 extern void parse_options_start(struct parse_opt_ctx_t *ctx,
188 int argc, const char **argv, int flags);
190 extern int parse_options_step(struct parse_opt_ctx_t *ctx,
191 const struct option *options,
192 const char * const usagestr[]);
194 extern int parse_options_end(struct parse_opt_ctx_t *ctx);
197 /*----- some often used options -----*/
198 extern int parse_opt_abbrev_cb(const struct option *, const char *, int);
199 extern int parse_opt_approxidate_cb(const struct option *, const char *, int);
200 extern int parse_opt_verbosity_cb(const struct option *, const char *, int);
202 #define OPT__VERBOSE(var) OPT_BOOLEAN('v', "verbose", (var), "be verbose")
203 #define OPT__QUIET(var) OPT_BOOLEAN('q', "quiet", (var), "be quiet")
204 #define OPT__VERBOSITY(var) \
205 { OPTION_CALLBACK, 'v', "verbose", (var), NULL, "be more verbose", \
206 PARSE_OPT_NOARG, &parse_opt_verbosity_cb, 0 }, \
207 { OPTION_CALLBACK, 'q', "quiet", (var), NULL, "be more quiet", \
208 PARSE_OPT_NOARG, &parse_opt_verbosity_cb, 0 }
209 #define OPT__DRY_RUN(var) OPT_BOOLEAN('n', "dry-run", (var), "dry run")
210 #define OPT__ABBREV(var) \
211 { OPTION_CALLBACK, 0, "abbrev", (var), "n", \
212 "use <n> digits to display SHA-1s", \
213 PARSE_OPT_OPTARG, &parse_opt_abbrev_cb, 0 }
215 extern const char *parse_options_fix_filename(const char *prefix, const char *file);
217 void set_option_flag(struct option *opts, int sopt, const char *lopt, int flag);
218 #endif /* __PERF_PARSE_OPTIONS_H */