diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c index bba1cd655a1d..133218e51ab4 100644 --- a/tools/perf/tests/parse-events.c +++ b/tools/perf/tests/parse-events.c @@ -486,6 +486,93 @@ static int test__checkevent_breakpoint_rw_modifier(struct evlist *evlist) return test__checkevent_breakpoint_rw(evlist); } +static int test__checkevent_breakpoint_modifier_name(struct evlist *evlist) +{ + struct evsel *evsel = evlist__first(evlist); + + TEST_ASSERT_VAL("wrong exclude_user", !evsel->core.attr.exclude_user); + TEST_ASSERT_VAL("wrong exclude_kernel", evsel->core.attr.exclude_kernel); + TEST_ASSERT_VAL("wrong exclude_hv", evsel->core.attr.exclude_hv); + TEST_ASSERT_VAL("wrong precise_ip", !evsel->core.attr.precise_ip); + TEST_ASSERT_VAL("wrong name", + !strcmp(evsel__name(evsel), "breakpoint")); + + return test__checkevent_breakpoint(evlist); +} + +static int test__checkevent_breakpoint_x_modifier_name(struct evlist *evlist) +{ + struct evsel *evsel = evlist__first(evlist); + + TEST_ASSERT_VAL("wrong exclude_user", evsel->core.attr.exclude_user); + TEST_ASSERT_VAL("wrong exclude_kernel", !evsel->core.attr.exclude_kernel); + TEST_ASSERT_VAL("wrong exclude_hv", evsel->core.attr.exclude_hv); + TEST_ASSERT_VAL("wrong precise_ip", !evsel->core.attr.precise_ip); + TEST_ASSERT_VAL("wrong name", + !strcmp(evsel__name(evsel), "breakpoint")); + + return test__checkevent_breakpoint_x(evlist); +} + +static int test__checkevent_breakpoint_r_modifier_name(struct evlist *evlist) +{ + struct evsel *evsel = evlist__first(evlist); + + TEST_ASSERT_VAL("wrong exclude_user", evsel->core.attr.exclude_user); + TEST_ASSERT_VAL("wrong exclude_kernel", evsel->core.attr.exclude_kernel); + TEST_ASSERT_VAL("wrong exclude_hv", !evsel->core.attr.exclude_hv); + TEST_ASSERT_VAL("wrong precise_ip", evsel->core.attr.precise_ip); + TEST_ASSERT_VAL("wrong name", + !strcmp(evsel__name(evsel), "breakpoint")); + + return test__checkevent_breakpoint_r(evlist); +} + +static int test__checkevent_breakpoint_w_modifier_name(struct evlist *evlist) +{ + struct evsel *evsel = evlist__first(evlist); + + TEST_ASSERT_VAL("wrong exclude_user", !evsel->core.attr.exclude_user); + TEST_ASSERT_VAL("wrong exclude_kernel", evsel->core.attr.exclude_kernel); + TEST_ASSERT_VAL("wrong exclude_hv", evsel->core.attr.exclude_hv); + TEST_ASSERT_VAL("wrong precise_ip", evsel->core.attr.precise_ip); + TEST_ASSERT_VAL("wrong name", + !strcmp(evsel__name(evsel), "breakpoint")); + + return test__checkevent_breakpoint_w(evlist); +} + +static int test__checkevent_breakpoint_rw_modifier_name(struct evlist *evlist) +{ + struct evsel *evsel = evlist__first(evlist); + + TEST_ASSERT_VAL("wrong exclude_user", evsel->core.attr.exclude_user); + TEST_ASSERT_VAL("wrong exclude_kernel", !evsel->core.attr.exclude_kernel); + TEST_ASSERT_VAL("wrong exclude_hv", evsel->core.attr.exclude_hv); + TEST_ASSERT_VAL("wrong precise_ip", evsel->core.attr.precise_ip); + TEST_ASSERT_VAL("wrong name", + !strcmp(evsel__name(evsel), "breakpoint")); + + return test__checkevent_breakpoint_rw(evlist); +} + +static int test__checkevent_breakpoint_2_events(struct evlist *evlist) +{ + struct evsel *evsel = evlist__first(evlist); + + TEST_ASSERT_VAL("wrong number of entries", 2 == evlist->core.nr_entries); + + TEST_ASSERT_VAL("wrong type", PERF_TYPE_BREAKPOINT == evsel->core.attr.type); + TEST_ASSERT_VAL("wrong name", !strcmp(evsel__name(evsel), "breakpoint1")); + + evsel = evsel__next(evsel); + + TEST_ASSERT_VAL("wrong type", PERF_TYPE_BREAKPOINT == evsel->core.attr.type); + TEST_ASSERT_VAL("wrong name", !strcmp(evsel__name(evsel), "breakpoint2")); + + return TEST_OK; +} + static int test__checkevent_pmu(struct evlist *evlist) { @@ -1973,6 +2060,76 @@ static const struct evlist_test test__events[] = { .check = test__term_equal_legacy, /* 9 */ }, + { + .name = "mem:0/name=breakpoint/", + .check = test__checkevent_breakpoint, + /* 0 */ + }, + { + .name = "mem:0:x/name=breakpoint/", + .check = test__checkevent_breakpoint_x, + /* 1 */ + }, + { + .name = "mem:0:r/name=breakpoint/", + .check = test__checkevent_breakpoint_r, + /* 2 */ + }, + { + .name = "mem:0:w/name=breakpoint/", + .check = test__checkevent_breakpoint_w, + /* 3 */ + }, + { + .name = "mem:0/name=breakpoint/u", + .check = test__checkevent_breakpoint_modifier_name, + /* 4 */ + }, + { + .name = "mem:0:x/name=breakpoint/k", + .check = test__checkevent_breakpoint_x_modifier_name, + /* 5 */ + }, + { + .name = "mem:0:r/name=breakpoint/hp", + .check = test__checkevent_breakpoint_r_modifier_name, + /* 6 */ + }, + { + .name = "mem:0:w/name=breakpoint/up", + .check = test__checkevent_breakpoint_w_modifier_name, + /* 7 */ + }, + { + .name = "mem:0:rw/name=breakpoint/", + .check = test__checkevent_breakpoint_rw, + /* 8 */ + }, + { + .name = "mem:0:rw/name=breakpoint/kp", + .check = test__checkevent_breakpoint_rw_modifier_name, + /* 9 */ + }, + { + .name = "mem:0/1/name=breakpoint/", + .check = test__checkevent_breakpoint_len, + /* 0 */ + }, + { + .name = "mem:0/2:w/name=breakpoint/", + .check = test__checkevent_breakpoint_len_w, + /* 1 */ + }, + { + .name = "mem:0/4:rw/name=breakpoint/u", + .check = test__checkevent_breakpoint_len_rw_modifier, + /* 2 */ + }, + { + .name = "mem:0/1/name=breakpoint1/,mem:0/4:rw/name=breakpoint2/", + .check = test__checkevent_breakpoint_2_events, + /* 3 */ + }, }; static const struct evlist_test test__events_pmu[] = { diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 629f7bd9fd59..2d36cadf35ec 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -946,10 +946,14 @@ do { \ return 0; } -int parse_events_add_breakpoint(struct list_head *list, int *idx, - u64 addr, char *type, u64 len) +int parse_events_add_breakpoint(struct parse_events_state *parse_state, + struct list_head *list, + u64 addr, char *type, u64 len, + struct list_head *head_config __maybe_unused) { struct perf_event_attr attr; + LIST_HEAD(config_terms); + const char *name; memset(&attr, 0, sizeof(attr)); attr.bp_addr = addr; @@ -970,8 +974,19 @@ int parse_events_add_breakpoint(struct list_head *list, int *idx, attr.type = PERF_TYPE_BREAKPOINT; attr.sample_period = 1; - return add_event(list, idx, &attr, /*name=*/NULL, /*mertic_id=*/NULL, - /*config_terms=*/NULL); + if (head_config) { + if (config_attr(&attr, head_config, parse_state->error, + config_term_common)) + return -EINVAL; + + if (get_config_terms(head_config, &config_terms)) + return -ENOMEM; + } + + name = get_config_name(head_config); + + return add_event(list, &parse_state->idx, &attr, name, /*mertic_id=*/NULL, + &config_terms); } static int check_type_val(struct parse_events_term *term, diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index 2021fe145410..5fdc1f33f57e 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -185,8 +185,10 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name, struct parse_events_state *parse_state, struct list_head *head_config); int parse_events__decode_legacy_cache(const char *name, int pmu_type, __u64 *config); -int parse_events_add_breakpoint(struct list_head *list, int *idx, - u64 addr, char *type, u64 len); +int parse_events_add_breakpoint(struct parse_events_state *parse_state, + struct list_head *list, + u64 addr, char *type, u64 len, + struct list_head *head_config); int parse_events_add_pmu(struct parse_events_state *parse_state, struct list_head *list, char *name, struct list_head *head_config, @@ -226,6 +228,10 @@ void parse_events_error__handle(struct parse_events_error *err, int idx, void parse_events_error__print(struct parse_events_error *err, const char *event); +static inline void parse_events_unused_value(const void *x __maybe_unused) +{ +} + #ifdef HAVE_LIBELF_SUPPORT /* * If the probe point starts with '%', diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l index 6deb70c25984..7629af3d5c7c 100644 --- a/tools/perf/util/parse-events.l +++ b/tools/perf/util/parse-events.l @@ -190,11 +190,16 @@ name [a-zA-Z_*?\[\]][a-zA-Z0-9_*?.\[\]!\-]* name_tag [\'][a-zA-Z_*?\[\]][a-zA-Z0-9_*?\-,\.\[\]:=]*[\'] name_minus [a-zA-Z_*?][a-zA-Z0-9\-_*?.:]* drv_cfg_term [a-zA-Z0-9_\.]+(=[a-zA-Z0-9_*?\.:]+)? -/* If you add a modifier you need to update check_modifier() */ +/* + * If you add a modifier you need to update check_modifier(). + * Also, the letters in modifier_event must not be in modifier_bp. + */ modifier_event [ukhpPGHSDIWeb]+ modifier_bp [rwx]{1,3} lc_type (L1-dcache|l1-d|l1d|L1-data|L1-icache|l1-i|l1i|L1-instruction|LLC|L2|dTLB|d-tlb|Data-TLB|iTLB|i-tlb|Instruction-TLB|branch|branches|bpu|btb|bpc|node) lc_op_result (load|loads|read|store|stores|write|prefetch|prefetches|speculative-read|speculative-load|refs|Reference|ops|access|misses|miss) +digit [0-9] +non_digit [^0-9] %% @@ -304,8 +309,20 @@ r0x{num_raw_hex} { return str(yyscanner, PE_RAW); } { {modifier_bp} { return str(yyscanner, PE_MODIFIER_BP); } -: { return ':'; } -"/" { return '/'; } + /* + * The colon before memory access modifiers can get mixed up with the + * colon before event modifiers. Fortunately none of the option letters + * are the same, so trailing context can be used disambiguate the two + * cases. + */ +":"/{modifier_bp} { return str(yyscanner, PE_BP_COLON); } + /* + * The slash before memory length can get mixed up with the slash before + * config terms. Fortunately config terms do not start with a numeric + * digit, so trailing context can be used disambiguate the two cases. + */ +"/"/{digit} { return str(yyscanner, PE_BP_SLASH); } +"/"/{non_digit} { BEGIN(config); return '/'; } {num_dec} { return value(yyscanner, 10); } {num_hex} { return value(yyscanner, 16); } /* diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y index f96afb0edd0c..0c3d086cc22a 100644 --- a/tools/perf/util/parse-events.y +++ b/tools/perf/util/parse-events.y @@ -59,7 +59,7 @@ static void free_list_evsel(struct list_head* list_evsel) %token PE_EVENT_NAME %token PE_RAW PE_NAME %token PE_BPF_OBJECT PE_BPF_SOURCE -%token PE_MODIFIER_EVENT PE_MODIFIER_BP +%token PE_MODIFIER_EVENT PE_MODIFIER_BP PE_BP_COLON PE_BP_SLASH %token PE_LEGACY_CACHE %token PE_PREFIX_MEM PE_PREFIX_RAW PE_PREFIX_GROUP %token PE_ERROR @@ -80,6 +80,8 @@ static void free_list_evsel(struct list_head* list_evsel) %type PE_LEGACY_CACHE %type PE_MODIFIER_EVENT %type PE_MODIFIER_BP +%type PE_BP_COLON +%type PE_BP_SLASH %type PE_EVENT_NAME %type PE_KERNEL_PMU_EVENT PE_PMU_EVENT_FAKE %type PE_DRV_CFG_TERM @@ -275,7 +277,7 @@ event_def event_def: event_pmu | event_legacy_symbol | event_legacy_cache sep_dc | - event_legacy_mem | + event_legacy_mem sep_dc | event_legacy_tracepoint sep_dc | event_legacy_numeric sep_dc | event_legacy_raw sep_dc | @@ -503,16 +505,19 @@ PE_LEGACY_CACHE opt_event_config } event_legacy_mem: -PE_PREFIX_MEM PE_VALUE '/' PE_VALUE ':' PE_MODIFIER_BP sep_dc +PE_PREFIX_MEM PE_VALUE PE_BP_SLASH PE_VALUE PE_BP_COLON PE_MODIFIER_BP opt_event_config { - struct parse_events_state *parse_state = _parse_state; struct list_head *list; int err; + parse_events_unused_value(&$3); + parse_events_unused_value(&$5); + list = alloc_list(); ABORT_ON(!list); - err = parse_events_add_breakpoint(list, &parse_state->idx, - $2, $6, $4); + err = parse_events_add_breakpoint(_parse_state, list, + $2, $6, $4, $7); + parse_events_terms__delete($7); free($6); if (err) { free(list); @@ -521,31 +526,37 @@ PE_PREFIX_MEM PE_VALUE '/' PE_VALUE ':' PE_MODIFIER_BP sep_dc $$ = list; } | -PE_PREFIX_MEM PE_VALUE '/' PE_VALUE sep_dc +PE_PREFIX_MEM PE_VALUE PE_BP_SLASH PE_VALUE opt_event_config { - struct parse_events_state *parse_state = _parse_state; struct list_head *list; + int err; + + parse_events_unused_value(&$3); list = alloc_list(); ABORT_ON(!list); - if (parse_events_add_breakpoint(list, &parse_state->idx, - $2, NULL, $4)) { + err = parse_events_add_breakpoint(_parse_state, list, + $2, NULL, $4, $5); + parse_events_terms__delete($5); + if (err) { free(list); YYABORT; } $$ = list; } | -PE_PREFIX_MEM PE_VALUE ':' PE_MODIFIER_BP sep_dc +PE_PREFIX_MEM PE_VALUE PE_BP_COLON PE_MODIFIER_BP opt_event_config { - struct parse_events_state *parse_state = _parse_state; struct list_head *list; int err; + parse_events_unused_value(&$3); + list = alloc_list(); ABORT_ON(!list); - err = parse_events_add_breakpoint(list, &parse_state->idx, - $2, $4, 0); + err = parse_events_add_breakpoint(_parse_state, list, + $2, $4, 0, $5); + parse_events_terms__delete($5); free($4); if (err) { free(list); @@ -554,15 +565,17 @@ PE_PREFIX_MEM PE_VALUE ':' PE_MODIFIER_BP sep_dc $$ = list; } | -PE_PREFIX_MEM PE_VALUE sep_dc +PE_PREFIX_MEM PE_VALUE opt_event_config { - struct parse_events_state *parse_state = _parse_state; struct list_head *list; + int err; list = alloc_list(); ABORT_ON(!list); - if (parse_events_add_breakpoint(list, &parse_state->idx, - $2, NULL, 0)) { + err = parse_events_add_breakpoint(_parse_state, list, + $2, NULL, 0, $3); + parse_events_terms__delete($3); + if (err) { free(list); YYABORT; }