Namhyung Kim ea558c8624 tools lib subcmd: Show parent options in help ... I've just realized that help message in a subcommand didn't show one in the parent command. Since the option parser understands the parent, display code should do the same. For example, `perf ftrace latency -h` should show options in the `perf ftrace` command too. Before: $ perf ftrace latency -h Usage: perf ftrace [<options>] [<command>] or: perf ftrace [<options>] -- [<command>] [<options>] or: perf ftrace {trace|latency} [<options>] [<command>] or: perf ftrace {trace|latency} [<options>] -- [<command>] [<options>] -b, --use-bpf Use BPF to measure function latency -n, --use-nsec Use nano-second histogram -T, --trace-funcs <func> Show latency of given function After: $ perf ftrace latency -h Usage: perf ftrace [<options>] [<command>] or: perf ftrace [<options>] -- [<command>] [<options>] or: perf ftrace {trace|latency} [<options>] [<command>] or: perf ftrace {trace|latency} [<options>] -- [<command>] [<options>] -a, --all-cpus System-wide collection from all CPUs -b, --use-bpf Use BPF to measure function latency -C, --cpu <cpu> List of cpus to monitor -n, --use-nsec Use nano-second histogram -p, --pid <pid> Trace on existing process id -T, --trace-funcs <func> Show latency of given function -v, --verbose Be more verbose --tid <tid> Trace on existing thread id (exclusive to --pid) Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20240429233707.1511175-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2024-05-12 21:09:52 -03:00
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exec-cmd.c	libsubcmd: Avoid two path statics, removing 8192 bytes from .bss	2023-05-28 10:25:55 -03:00
exec-cmd.h
help.c	libsubcmd: Fix memory leak in uniq()	2024-01-04 18:29:17 -03:00
help.h
Makefile	tools lib subcmd: Add dependency test to install_headers	2022-12-14 11:16:12 -03:00
pager.c
pager.h
parse-options.c	tools lib subcmd: Show parent options in help	2024-05-12 21:09:52 -03:00
parse-options.h	tools/lib/subcmd: Replace NORETURN usage with __noreturn	2023-05-16 06:31:54 -07:00
run-command.c	tools subcmd: Add check_if_command_finished()	2024-04-08 17:43:20 -03:00
run-command.h	tools subcmd: Add check_if_command_finished()	2024-04-08 17:43:20 -03:00
sigchain.c
sigchain.h
subcmd-config.c
subcmd-config.h
subcmd-util.h	tools/lib/subcmd: Replace NORETURN usage with __noreturn	2023-05-16 06:31:54 -07:00