perf mem: Allow all record/report options

For perf mem report / perf mem record, pass all unknown options
through to the underlying report/record commands. This makes things
like

perf mem record -a sleep 1

work. Matches how c2c and other tools work.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20180406203812.3087-2-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/Documentation/perf-mem.txt

@@ -67,6 +67,9 @@ OPTIONS
 --phys-data::
 	Record/Report sample physical addresses
 
+In addition, for report all perf report options are valid, and for record
+all perf record options.
+
 SEE ALSO
 --------
 linkperf:perf-record[1], linkperf:perf-report[1]

tools/perf/builtin-mem.c

@@ -83,7 +83,7 @@ static int __cmd_record(int argc, const char **argv, struct perf_mem *mem)
 	};
 
 	argc = parse_options(argc, argv, options, record_mem_usage,
-			     PARSE_OPT_STOP_AT_NON_OPTION);
+			     PARSE_OPT_KEEP_UNKNOWN);
 
 	rec_argc = argc + 9; /* max number of arguments */
 	rec_argv = calloc(rec_argc + 1, sizeof(char *));
@@ -436,7 +436,7 @@ int cmd_mem(int argc, const char **argv)
 	}
 
 	argc = parse_options_subcommand(argc, argv, mem_options, mem_subcommands,
-					mem_usage, PARSE_OPT_STOP_AT_NON_OPTION);
+					mem_usage, PARSE_OPT_KEEP_UNKNOWN);
 
 	if (!argc || !(strncmp(argv[0], "rec", 3) || mem.operation))
 		usage_with_options(mem_usage, mem_options);