cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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event_update.c (4115B)

      1// SPDX-License-Identifier: GPL-2.0
      2#include <linux/compiler.h>
      3#include <perf/cpumap.h>
      4#include <string.h>
      5#include "cpumap.h"
      6#include "evlist.h"
      7#include "evsel.h"
      8#include "header.h"
      9#include "machine.h"
     10#include "util/synthetic-events.h"
     11#include "tool.h"
     12#include "tests.h"
     13#include "debug.h"
     14
     15static int process_event_unit(struct perf_tool *tool __maybe_unused,
     16			      union perf_event *event,
     17			      struct perf_sample *sample __maybe_unused,
     18			      struct machine *machine __maybe_unused)
     19{
     20	struct perf_record_event_update *ev = (struct perf_record_event_update *)event;
     21
     22	TEST_ASSERT_VAL("wrong id", ev->id == 123);
     23	TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__UNIT);
     24	TEST_ASSERT_VAL("wrong unit", !strcmp(ev->data, "KRAVA"));
     25	return 0;
     26}
     27
     28static int process_event_scale(struct perf_tool *tool __maybe_unused,
     29			       union perf_event *event,
     30			       struct perf_sample *sample __maybe_unused,
     31			       struct machine *machine __maybe_unused)
     32{
     33	struct perf_record_event_update *ev = (struct perf_record_event_update *)event;
     34	struct perf_record_event_update_scale *ev_data;
     35
     36	ev_data = (struct perf_record_event_update_scale *)ev->data;
     37
     38	TEST_ASSERT_VAL("wrong id", ev->id == 123);
     39	TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__SCALE);
     40	TEST_ASSERT_VAL("wrong scale", ev_data->scale == 0.123);
     41	return 0;
     42}
     43
     44struct event_name {
     45	struct perf_tool tool;
     46	const char *name;
     47};
     48
     49static int process_event_name(struct perf_tool *tool,
     50			      union perf_event *event,
     51			      struct perf_sample *sample __maybe_unused,
     52			      struct machine *machine __maybe_unused)
     53{
     54	struct event_name *tmp = container_of(tool, struct event_name, tool);
     55	struct perf_record_event_update *ev = (struct perf_record_event_update *)event;
     56
     57	TEST_ASSERT_VAL("wrong id", ev->id == 123);
     58	TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__NAME);
     59	TEST_ASSERT_VAL("wrong name", !strcmp(ev->data, tmp->name));
     60	return 0;
     61}
     62
     63static int process_event_cpus(struct perf_tool *tool __maybe_unused,
     64			      union perf_event *event,
     65			      struct perf_sample *sample __maybe_unused,
     66			      struct machine *machine __maybe_unused)
     67{
     68	struct perf_record_event_update *ev = (struct perf_record_event_update *)event;
     69	struct perf_record_event_update_cpus *ev_data;
     70	struct perf_cpu_map *map;
     71
     72	ev_data = (struct perf_record_event_update_cpus *) ev->data;
     73
     74	map = cpu_map__new_data(&ev_data->cpus);
     75
     76	TEST_ASSERT_VAL("wrong id", ev->id == 123);
     77	TEST_ASSERT_VAL("wrong type", ev->type == PERF_EVENT_UPDATE__CPUS);
     78	TEST_ASSERT_VAL("wrong cpus", perf_cpu_map__nr(map) == 3);
     79	TEST_ASSERT_VAL("wrong cpus", perf_cpu_map__cpu(map, 0).cpu == 1);
     80	TEST_ASSERT_VAL("wrong cpus", perf_cpu_map__cpu(map, 1).cpu == 2);
     81	TEST_ASSERT_VAL("wrong cpus", perf_cpu_map__cpu(map, 2).cpu == 3);
     82	perf_cpu_map__put(map);
     83	return 0;
     84}
     85
     86static int test__event_update(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
     87{
     88	struct evsel *evsel;
     89	struct event_name tmp;
     90	struct evlist *evlist = evlist__new_default();
     91
     92	TEST_ASSERT_VAL("failed to get evlist", evlist);
     93
     94	evsel = evlist__first(evlist);
     95
     96	TEST_ASSERT_VAL("failed to allocate ids",
     97			!perf_evsel__alloc_id(&evsel->core, 1, 1));
     98
     99	perf_evlist__id_add(&evlist->core, &evsel->core, 0, 0, 123);
    100
    101	free((char *)evsel->unit);
    102	evsel->unit = strdup("KRAVA");
    103
    104	TEST_ASSERT_VAL("failed to synthesize attr update unit",
    105			!perf_event__synthesize_event_update_unit(NULL, evsel, process_event_unit));
    106
    107	evsel->scale = 0.123;
    108
    109	TEST_ASSERT_VAL("failed to synthesize attr update scale",
    110			!perf_event__synthesize_event_update_scale(NULL, evsel, process_event_scale));
    111
    112	tmp.name = evsel__name(evsel);
    113
    114	TEST_ASSERT_VAL("failed to synthesize attr update name",
    115			!perf_event__synthesize_event_update_name(&tmp.tool, evsel, process_event_name));
    116
    117	evsel->core.own_cpus = perf_cpu_map__new("1,2,3");
    118
    119	TEST_ASSERT_VAL("failed to synthesize attr update cpus",
    120			!perf_event__synthesize_event_update_cpus(&tmp.tool, evsel, process_event_cpus));
    121
    122	evlist__delete(evlist);
    123	return 0;
    124}
    125
    126DEFINE_SUITE("Synthesize attr update", event_update);