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perf kvm: introduce --list-cmds for use by scripts

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Introduce

  $ perf kvm --list-cmds

to dump a raw list of commands for use by the completion script. In
order to do this, introduce parse_options_subcommand() for handling
subcommands as a special case in the parse-options machinery.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Acked-by: David Ahern <dsahern@gmail.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1393896396-10427-1-git-send-email-artagnon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ramkumar Ramachandra
2014-03-03 20:26:36 -05:00
committed by Arnaldo Carvalho de Melo
parent 94a0793ddf
commit 09a71b97cc
4 changed files with 46 additions and 13 deletions
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8
tools/perf/util/parse-options.h
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@@ -140,6 +140,11 @@ extern int parse_options(int argc, const char **argv,
const struct option *options,
const char * const usagestr[], int flags);
extern int parse_options_subcommand(int argc, const char **argv,
const struct option *options,
const char *const subcommands[],
const char *usagestr[], int flags);
extern NORETURN void usage_with_options(const char * const *usagestr,
const struct option *options);
@@ -148,7 +153,8 @@ extern NORETURN void usage_with_options(const char * const *usagestr,
enum {
PARSE_OPT_HELP = -1,
PARSE_OPT_DONE,
PARSE_OPT_LIST,
PARSE_OPT_LIST_OPTS,
PARSE_OPT_LIST_SUBCMDS,
PARSE_OPT_UNKNOWN,
};