diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2016-10-24 12:00:02 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-10-25 10:12:16 -0300 |
| commit | 369a2478973a416a2c42a37a8cf7031872a6d926 (patch) | |
| tree | 2f59cd5560b246452d6702e8caefc162c4235a69 /tools/lib/subcmd/parse-options.h | |
| parent | 8a06b0be6507f97f3aa92ca814335b8b65fd3de2 (diff) | |
tools lib subcmd: Suppport cascading options
Sometimes subcommand have common options and it can only handled in the
upper level command unless it duplicates the options.
This patch adds a parent field and fallback to the parent if the given
argument was not found in the current options.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/20161024030003.28534-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/subcmd/parse-options.h')
| -rw-r--r-- | tools/lib/subcmd/parse-options.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/lib/subcmd/parse-options.h b/tools/lib/subcmd/parse-options.h index d60cab2726da..8866ac438b34 100644 --- a/tools/lib/subcmd/parse-options.h +++ b/tools/lib/subcmd/parse-options.h @@ -109,11 +109,13 @@ struct option { intptr_t defval; bool *set; void *data; + const struct option *parent; }; #define check_vtype(v, type) ( BUILD_BUG_ON_ZERO(!__builtin_types_compatible_p(typeof(v), type)) + v ) #define OPT_END() { .type = OPTION_END } +#define OPT_PARENT(p) { .type = OPTION_END, .parent = (p) } #define OPT_ARGUMENT(l, h) { .type = OPTION_ARGUMENT, .long_name = (l), .help = (h) } #define OPT_GROUP(h) { .type = OPTION_GROUP, .help = (h) } #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) } |