perf parse-event: Constify event_symbol arrays

Moves 352 bytes from .data to .data.rel.ro.

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Beeman Strong <beeman@rivosinc.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240416061533.921723-15-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 3ab533d0e653a829871382f6dd122dc5e3d2d13e..8d3d692d219d212855692c272ad359e0dee39acc 100644 (file)
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -39,7 +39,7 @@ static int get_config_terms(const struct parse_events_terms *head_config,
 static int parse_events_terms__copy(const struct parse_events_terms *src,
                                    struct parse_events_terms *dest);
 
-struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = {
+const struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = {
        [PERF_COUNT_HW_CPU_CYCLES] = {
                .symbol = "cpu-cycles",
                .alias  = "cycles",
@@ -82,7 +82,7 @@ struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = {
        },
 };
 
-struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
+const struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
        [PERF_COUNT_SW_CPU_CLOCK] = {
                .symbol = "cpu-clock",
                .alias  = "",

diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index f104faef1a78710ff61da1b8afe1b69ee300b208..0bb5f0c80a5e6e7abacb892cacdd5f1840088a11 100644 (file)
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -250,8 +250,8 @@ struct event_symbol {
        const char      *symbol;
        const char      *alias;
 };
-extern struct event_symbol event_symbols_hw[];
-extern struct event_symbol event_symbols_sw[];
+extern const struct event_symbol event_symbols_hw[];
+extern const struct event_symbol event_symbols_sw[];
 
 char *parse_events_formats_error_string(char *additional_terms);