perf test: Use existing config value for objdump path

There is already an existing config value for changing the objdump path,
so instead of having two values that do the same thing, make 'perf test'
use annotate.objdump as well.
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Fangrui Song <maskray@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/ZU5Cx4LTrB5q0sIG@kernel.org
Link: https://lore.kernel.org/r/20231113102327.695386-1-james.clark@arm.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/Documentation/perf-config.txt

@@ -251,7 +251,8 @@ annotate.*::
 		addr2line binary to use for file names and line numbers.
 
 	annotate.objdump::
-		objdump binary to use for disassembly and annotations.
+		objdump binary to use for disassembly and annotations,
+		including in the 'perf test' command.
 
 	annotate.disassembler_style::
 		Use this to change the default disassembler style to some other value
@@ -722,11 +723,6 @@ session-<NAME>.*::
 		Defines new record session for daemon. The value is record's
 		command line without the 'record' keyword.
 
-test.*::
-
-	test.objdump::
-		objdump binary to use for disassembly and annotations.
-
 SEE ALSO
 --------
 linkperf:perf[1]

tools/perf/tests/builtin-test.c

@@ -518,7 +518,7 @@ static int run_workload(const char *work, int argc, const char **argv)
 static int perf_test__config(const char *var, const char *value,
 			     void *data __maybe_unused)
 {
-	if (!strcmp(var, "test.objdump"))
+	if (!strcmp(var, "annotate.objdump"))
 		test_objdump_path = value;
 
 	return 0;