diff options
Diffstat (limited to 'tools/perf/util/evsel.c')
| -rw-r--r-- | tools/perf/util/evsel.c | 1691 |
1 files changed, 1136 insertions, 555 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index c8dc4450884c..76605fde3507 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -25,6 +25,7 @@ #include <stdlib.h> #include <perf/evsel.h> #include "asm/bug.h" +#include "bpf_counter.h" #include "callchain.h" #include "cgroup.h" #include "counts.h" @@ -45,6 +46,13 @@ #include "string2.h" #include "memswap.h" #include "util.h" +#ifdef HAVE_LIBBPF_SUPPORT +#include <bpf/hashmap.h> +#else +#include "util/hashmap.h" +#endif +#include "pmu-hybrid.h" +#include "off_cpu.h" #include "../perf-sys.h" #include "util/parse-branch-options.h" #include <internal/xyarray.h> @@ -56,14 +64,41 @@ struct perf_missing_features perf_missing_features; static clockid_t clockid; -static int perf_evsel__no_extra_init(struct evsel *evsel __maybe_unused) +static const char *const perf_tool_event__tool_names[PERF_TOOL_MAX] = { + NULL, + "duration_time", + "user_time", + "system_time", +}; + +const char *perf_tool_event__to_str(enum perf_tool_event ev) +{ + if (ev > PERF_TOOL_NONE && ev < PERF_TOOL_MAX) + return perf_tool_event__tool_names[ev]; + + return NULL; +} + +enum perf_tool_event perf_tool_event__from_str(const char *str) +{ + int i; + + perf_tool_event__for_each_event(i) { + if (!strcmp(str, perf_tool_event__tool_names[i])) + return i; + } + return PERF_TOOL_NONE; +} + + +static int evsel__no_extra_init(struct evsel *evsel __maybe_unused) { return 0; } void __weak test_attr__ready(void) { } -static void perf_evsel__no_extra_fini(struct evsel *evsel __maybe_unused) +static void evsel__no_extra_fini(struct evsel *evsel __maybe_unused) { } @@ -73,13 +108,12 @@ static struct { void (*fini)(struct evsel *evsel); } perf_evsel__object = { .size = sizeof(struct evsel), - .init = perf_evsel__no_extra_init, - .fini = perf_evsel__no_extra_fini, + .init = evsel__no_extra_init, + .fini = evsel__no_extra_fini, }; -int perf_evsel__object_config(size_t object_size, - int (*init)(struct evsel *evsel), - void (*fini)(struct evsel *evsel)) +int evsel__object_config(size_t object_size, int (*init)(struct evsel *evsel), + void (*fini)(struct evsel *evsel)) { if (object_size == 0) @@ -102,7 +136,7 @@ set_methods: #define FD(e, x, y) (*(int *)xyarray__entry(e->core.fd, x, y)) -int __perf_evsel__sample_size(u64 sample_type) +int __evsel__sample_size(u64 sample_type) { u64 mask = sample_type & PERF_SAMPLE_MASK; int size = 0; @@ -178,53 +212,53 @@ static int __perf_evsel__calc_is_pos(u64 sample_type) return idx; } -void perf_evsel__calc_id_pos(struct evsel *evsel) +void evsel__calc_id_pos(struct evsel *evsel) { evsel->id_pos = __perf_evsel__calc_id_pos(evsel->core.attr.sample_type); evsel->is_pos = __perf_evsel__calc_is_pos(evsel->core.attr.sample_type); } -void __perf_evsel__set_sample_bit(struct evsel *evsel, +void __evsel__set_sample_bit(struct evsel *evsel, enum perf_event_sample_format bit) { if (!(evsel->core.attr.sample_type & bit)) { evsel->core.attr.sample_type |= bit; evsel->sample_size += sizeof(u64); - perf_evsel__calc_id_pos(evsel); + evsel__calc_id_pos(evsel); } } -void __perf_evsel__reset_sample_bit(struct evsel *evsel, +void __evsel__reset_sample_bit(struct evsel *evsel, enum perf_event_sample_format bit) { if (evsel->core.attr.sample_type & bit) { evsel->core.attr.sample_type &= ~bit; evsel->sample_size -= sizeof(u64); - perf_evsel__calc_id_pos(evsel); + evsel__calc_id_pos(evsel); } } -void perf_evsel__set_sample_id(struct evsel *evsel, +void evsel__set_sample_id(struct evsel *evsel, bool can_sample_identifier) { if (can_sample_identifier) { - perf_evsel__reset_sample_bit(evsel, ID); - perf_evsel__set_sample_bit(evsel, IDENTIFIER); + evsel__reset_sample_bit(evsel, ID); + evsel__set_sample_bit(evsel, IDENTIFIER); } else { - perf_evsel__set_sample_bit(evsel, ID); + evsel__set_sample_bit(evsel, ID); } evsel->core.attr.read_format |= PERF_FORMAT_ID; } /** - * perf_evsel__is_function_event - Return whether given evsel is a function + * evsel__is_function_event - Return whether given evsel is a function * trace event * * @evsel - evsel selector to be tested * * Return %true if event is function trace event */ -bool perf_evsel__is_function_event(struct evsel *evsel) +bool evsel__is_function_event(struct evsel *evsel) { #define FUNCTION_EVENT "ftrace:function" @@ -237,29 +271,29 @@ bool perf_evsel__is_function_event(struct evsel *evsel) void evsel__init(struct evsel *evsel, struct perf_event_attr *attr, int idx) { - perf_evsel__init(&evsel->core, attr); - evsel->idx = idx; + perf_evsel__init(&evsel->core, attr, idx); evsel->tracking = !idx; - evsel->leader = evsel; - evsel->unit = ""; + evsel->unit = strdup(""); evsel->scale = 1.0; evsel->max_events = ULONG_MAX; evsel->evlist = NULL; evsel->bpf_obj = NULL; evsel->bpf_fd = -1; INIT_LIST_HEAD(&evsel->config_terms); + INIT_LIST_HEAD(&evsel->bpf_counter_list); perf_evsel__object.init(evsel); - evsel->sample_size = __perf_evsel__sample_size(attr->sample_type); - perf_evsel__calc_id_pos(evsel); + evsel->sample_size = __evsel__sample_size(attr->sample_type); + evsel__calc_id_pos(evsel); evsel->cmdline_group_boundary = false; evsel->metric_expr = NULL; evsel->metric_name = NULL; evsel->metric_events = NULL; + evsel->per_pkg_mask = NULL; evsel->collect_stat = false; evsel->pmu_name = NULL; } -struct evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx) +struct evsel *evsel__new_idx(struct perf_event_attr *attr, int idx) { struct evsel *evsel = zalloc(perf_evsel__object.size); @@ -267,20 +301,15 @@ struct evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx) return NULL; evsel__init(evsel, attr, idx); - if (perf_evsel__is_bpf_output(evsel)) { - evsel->core.attr.sample_type |= (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME | + if (evsel__is_bpf_output(evsel) && !attr->sample_type) { + evsel->core.attr.sample_type = (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME | PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD), evsel->core.attr.sample_period = 1; } - if (perf_evsel__is_clock(evsel)) { - /* - * The evsel->unit points to static alias->unit - * so it's ok to use static string in here. - */ - static const char *unit = "msec"; - - evsel->unit = unit; + if (evsel__is_clock(evsel)) { + free((char *)evsel->unit); + evsel->unit = strdup("msec"); evsel->scale = 1e-6; } @@ -292,29 +321,27 @@ static bool perf_event_can_profile_kernel(void) return perf_event_paranoid_check(1); } -struct evsel *perf_evsel__new_cycles(bool precise) +struct evsel *evsel__new_cycles(bool precise __maybe_unused, __u32 type, __u64 config) { struct perf_event_attr attr = { - .type = PERF_TYPE_HARDWARE, - .config = PERF_COUNT_HW_CPU_CYCLES, + .type = type, + .config = config, .exclude_kernel = !perf_event_can_profile_kernel(), }; struct evsel *evsel; event_attr_init(&attr); - if (!precise) - goto new_event; - /* * Now let the usual logic to set up the perf_event_attr defaults * to kick in when we return and before perf_evsel__open() is called. */ -new_event: evsel = evsel__new(&attr); if (evsel == NULL) goto out; + arch_evsel__fixup_new_cycles(&evsel->core.attr); + evsel->precise_max = true; /* use asprintf() because free(evsel) assumes name is allocated */ @@ -331,10 +358,130 @@ error_free: goto out; } +int copy_config_terms(struct list_head *dst, struct list_head *src) +{ + struct evsel_config_term *pos, *tmp; + + list_for_each_entry(pos, src, list) { + tmp = malloc(sizeof(*tmp)); + if (tmp == NULL) + return -ENOMEM; + + *tmp = *pos; + if (tmp->free_str) { + tmp->val.str = strdup(pos->val.str); + if (tmp->val.str == NULL) { + free(tmp); + return -ENOMEM; + } + } + list_add_tail(&tmp->list, dst); + } + return 0; +} + +static int evsel__copy_config_terms(struct evsel *dst, struct evsel *src) +{ + return copy_config_terms(&dst->config_terms, &src->config_terms); +} + +/** + * evsel__clone - create a new evsel copied from @orig + * @orig: original evsel + * + * The assumption is that @orig is not configured nor opened yet. + * So we only care about the attributes that can be set while it's parsed. + */ +struct evsel *evsel__clone(struct evsel *orig) +{ + struct evsel *evsel; + + BUG_ON(orig->core.fd); + BUG_ON(orig->counts); + BUG_ON(orig->priv); + BUG_ON(orig->per_pkg_mask); + + /* cannot handle BPF objects for now */ + if (orig->bpf_obj) + return NULL; + + evsel = evsel__new(&orig->core.attr); + if (evsel == NULL) + return NULL; + + evsel->core.cpus = perf_cpu_map__get(orig->core.cpus); + evsel->core.own_cpus = perf_cpu_map__get(orig->core.own_cpus); + evsel->core.threads = perf_thread_map__get(orig->core.threads); + evsel->core.nr_members = orig->core.nr_members; + evsel->core.system_wide = orig->core.system_wide; + evsel->core.requires_cpu = orig->core.requires_cpu; + + if (orig->name) { + evsel->name = strdup(orig->name); + if (evsel->name == NULL) + goto out_err; + } + if (orig->group_name) { + evsel->group_name = strdup(orig->group_name); + if (evsel->group_name == NULL) + goto out_err; + } + if (orig->pmu_name) { + evsel->pmu_name = strdup(orig->pmu_name); + if (evsel->pmu_name == NULL) + goto out_err; + } + if (orig->filter) { + evsel->filter = strdup(orig->filter); + if (evsel->filter == NULL) + goto out_err; + } + if (orig->metric_id) { + evsel->metric_id = strdup(orig->metric_id); + if (evsel->metric_id == NULL) + goto out_err; + } + evsel->cgrp = cgroup__get(orig->cgrp); + evsel->tp_format = orig->tp_format; + evsel->handler = orig->handler; + evsel->core.leader = orig->core.leader; + + evsel->max_events = orig->max_events; + evsel->tool_event = orig->tool_event; + free((char *)evsel->unit); + evsel->unit = strdup(orig->unit); + if (evsel->unit == NULL) + goto out_err; + + evsel->scale = orig->scale; + evsel->snapshot = orig->snapshot; + evsel->per_pkg = orig->per_pkg; + evsel->percore = orig->percore; + evsel->precise_max = orig->precise_max; + evsel->use_uncore_alias = orig->use_uncore_alias; + evsel->is_libpfm_event = orig->is_libpfm_event; + + evsel->exclude_GH = orig->exclude_GH; + evsel->sample_read = orig->sample_read; + evsel->auto_merge_stats = orig->auto_merge_stats; + evsel->collect_stat = orig->collect_stat; + evsel->weak_group = orig->weak_group; + evsel->use_config_name = orig->use_config_name; + + if (evsel__copy_config_terms(evsel, orig) < 0) + goto out_err; + + return evsel; + +out_err: + evsel__delete(evsel); + return NULL; +} + /* * Returns pointer with encoded error via <linux/err.h> interface. */ -struct evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx) +struct evsel *evsel__newtp_idx(const char *sys, const char *name, int idx) { struct evsel *evsel = zalloc(perf_evsel__object.size); int err = -ENOMEM; @@ -372,7 +519,7 @@ out_err: return ERR_PTR(err); } -const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX] = { +const char *const evsel__hw_names[PERF_COUNT_HW_MAX] = { "cycles", "instructions", "cache-references", @@ -385,15 +532,37 @@ const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX] = { "ref-cycles", }; -static const char *__perf_evsel__hw_name(u64 config) +char *evsel__bpf_counter_events; + +bool evsel__match_bpf_counter_events(const char *name) +{ + int name_len; + bool match; + char *ptr; + + if (!evsel__bpf_counter_events) + return false; + + ptr = strstr(evsel__bpf_counter_events, name); + name_len = strlen(name); + + /* check name matches a full token in evsel__bpf_counter_events */ + match = (ptr != NULL) && + ((ptr == evsel__bpf_counter_events) || (*(ptr - 1) == ',')) && + ((*(ptr + name_len) == ',') || (*(ptr + name_len) == '\0')); + + return match; +} + +static const char *__evsel__hw_name(u64 config) { - if (config < PERF_COUNT_HW_MAX && perf_evsel__hw_names[config]) - return perf_evsel__hw_names[config]; + if (config < PERF_COUNT_HW_MAX && evsel__hw_names[config]) + return evsel__hw_names[config]; return "unknown-hardware"; } -static int perf_evsel__add_modifiers(struct evsel *evsel, char *bf, size_t size) +static int evsel__add_modifiers(struct evsel *evsel, char *bf, size_t size) { int colon = 0, r = 0; struct perf_event_attr *attr = &evsel->core.attr; @@ -429,13 +598,18 @@ static int perf_evsel__add_modifiers(struct evsel *evsel, char *bf, size_t size) return r; } -static int perf_evsel__hw_name(struct evsel *evsel, char *bf, size_t size) +int __weak arch_evsel__hw_name(struct evsel *evsel, char *bf, size_t size) +{ + return scnprintf(bf, size, "%s", __evsel__hw_name(evsel->core.attr.config)); +} + +static int evsel__hw_name(struct evsel *evsel, char *bf, size_t size) { - int r = scnprintf(bf, size, "%s", __perf_evsel__hw_name(evsel->core.attr.config)); - return r + perf_evsel__add_modifiers(evsel, bf + r, size - r); + int r = arch_evsel__hw_name(evsel, bf, size); + return r + evsel__add_modifiers(evsel, bf + r, size - r); } -const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX] = { +const char *const evsel__sw_names[PERF_COUNT_SW_MAX] = { "cpu-clock", "task-clock", "page-faults", @@ -448,20 +622,25 @@ const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX] = { "dummy", }; -static const char *__perf_evsel__sw_name(u64 config) +static const char *__evsel__sw_name(u64 config) { - if (config < PERF_COUNT_SW_MAX && perf_evsel__sw_names[config]) - return perf_evsel__sw_names[config]; + if (config < PERF_COUNT_SW_MAX && evsel__sw_names[config]) + return evsel__sw_names[config]; return "unknown-software"; } -static int perf_evsel__sw_name(struct evsel *evsel, char *bf, size_t size) +static int evsel__sw_name(struct evsel *evsel, char *bf, size_t size) +{ + int r = scnprintf(bf, size, "%s", __evsel__sw_name(evsel->core.attr.config)); + return r + evsel__add_modifiers(evsel, bf + r, size - r); +} + +static int evsel__tool_name(enum perf_tool_event ev, char *bf, size_t size) { - int r = scnprintf(bf, size, "%s", __perf_evsel__sw_name(evsel->core.attr.config)); - return r + perf_evsel__add_modifiers(evsel, bf + r, size - r); + return scnprintf(bf, size, "%s", perf_tool_event__to_str(ev)); } -static int __perf_evsel__bp_name(char *bf, size_t size, u64 addr, u64 type) +static int __evsel__bp_name(char *bf, size_t size, u64 addr, u64 type) { int r; @@ -479,15 +658,14 @@ static int __perf_evsel__bp_name(char *bf, size_t size, u64 addr, u64 type) return r; } -static int perf_evsel__bp_name(struct evsel *evsel, char *bf, size_t size) +static int evsel__bp_name(struct evsel *evsel, char *bf, size_t size) { struct perf_event_attr *attr = &evsel->core.attr; - int r = __perf_evsel__bp_name(bf, size, attr->bp_addr, attr->bp_type); - return r + perf_evsel__add_modifiers(evsel, bf + r, size - r); + int r = __evsel__bp_name(bf, size, attr->bp_addr, attr->bp_type); + return r + evsel__add_modifiers(evsel, bf + r, size - r); } -const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX] - [PERF_EVSEL__MAX_ALIASES] = { +const char *const evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX][EVSEL__MAX_ALIASES] = { { "L1-dcache", "l1-d", "l1d", "L1-data", }, { "L1-icache", "l1-i", "l1i", "L1-instruction", }, { "LLC", "L2", }, @@ -497,15 +675,13 @@ const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX] { "node", }, }; -const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX] - [PERF_EVSEL__MAX_ALIASES] = { +const char *const evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][EVSEL__MAX_ALIASES] = { { "load", "loads", "read", }, { "store", "stores", "write", }, { "prefetch", "prefetches", "speculative-read", "speculative-load", }, }; -const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX] - [PERF_EVSEL__MAX_ALIASES] = { +const char *const evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX][EVSEL__MAX_ALIASES] = { { "refs", "Reference", "ops", "access", }, { "misses", "miss", }, }; @@ -517,11 +693,11 @@ const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX] #define COP(x) (1 << x) /* - * cache operartion stat + * cache operation stat * L1I : Read and prefetch only * ITLB and BPU : Read-only */ -static unsigned long perf_evsel__hw_cache_stat[C(MAX)] = { +static const unsigned long evsel__hw_cache_stat[C(MAX)] = { [C(L1D)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH), [C(L1I)] = (CACHE_READ | CACHE_PREFETCH), [C(LL)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH), @@ -531,28 +707,27 @@ static unsigned long perf_evsel__hw_cache_stat[C(MAX)] = { [C(NODE)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH), }; -bool perf_evsel__is_cache_op_valid(u8 type, u8 op) +bool evsel__is_cache_op_valid(u8 type, u8 op) { - if (perf_evsel__hw_cache_stat[type] & COP(op)) + if (evsel__hw_cache_stat[type] & COP(op)) return true; /* valid */ else return false; /* invalid */ } -int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result, - char *bf, size_t size) +int __evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result, char *bf, size_t size) { if (result) { - return scnprintf(bf, size, "%s-%s-%s", perf_evsel__hw_cache[type][0], - perf_evsel__hw_cache_op[op][0], - perf_evsel__hw_cache_result[result][0]); + return scnprintf(bf, size, "%s-%s-%s", evsel__hw_cache[type][0], + evsel__hw_cache_op[op][0], + evsel__hw_cache_result[result][0]); } - return scnprintf(bf, size, "%s-%s", perf_evsel__hw_cache[type][0], - perf_evsel__hw_cache_op[op][1]); + return scnprintf(bf, size, "%s-%s", evsel__hw_cache[type][0], + evsel__hw_cache_op[op][1]); } -static int __perf_evsel__hw_cache_name(u64 config, char *bf, size_t size) +static int __evsel__hw_cache_name(u64 config, char *bf, size_t size) { u8 op, result, type = (config >> 0) & 0xff; const char *err = "unknown-ext-hardware-cache-type"; @@ -571,33 +746,27 @@ static int __perf_evsel__hw_cache_name(u64 config, char *bf, size_t size) goto out_err; err = "invalid-cache"; - if (!perf_evsel__is_cache_op_valid(type, op)) + if (!evsel__is_cache_op_valid(type, op)) goto out_err; - return __perf_evsel__hw_cache_type_op_res_name(type, op, result, bf, size); + return __evsel__hw_cache_type_op_res_name(type, op, result, bf, size); out_err: return scnprintf(bf, size, "%s", err); } -static int perf_evsel__hw_cache_name(struct evsel *evsel, char *bf, size_t size) +static int evsel__hw_cache_name(struct evsel *evsel, char *bf, size_t size) { - int ret = __perf_evsel__hw_cache_name(evsel->core.attr.config, bf, size); - return ret + perf_evsel__add_modifiers(evsel, bf + ret, size - ret); + int ret = __evsel__hw_cache_name(evsel->core.attr.config, bf, size); + return ret + evsel__add_modifiers(evsel, bf + ret, size - ret); } -static int perf_evsel__raw_name(struct evsel *evsel, char *bf, size_t size) +static int evsel__raw_name(struct evsel *evsel, char *bf, size_t size) { int ret = scnprintf(bf, size, "raw 0x%" PRIx64, evsel->core.attr.config); - return ret + perf_evsel__add_modifiers(evsel, bf + ret, size - ret); -} - -static int perf_evsel__tool_name(char *bf, size_t size) -{ - int ret = scnprintf(bf, size, "duration_time"); - return ret; + return ret + evsel__add_modifiers(evsel, bf + ret, size - ret); } -const char *perf_evsel__name(struct evsel *evsel) +const char *evsel__name(struct evsel *evsel) { char bf[128]; @@ -609,22 +778,22 @@ const char *perf_evsel__name(struct evsel *evsel) switch (evsel->core.attr.type) { case PERF_TYPE_RAW: - perf_evsel__raw_name(evsel, bf, sizeof(bf)); + evsel__raw_name(evsel, bf, sizeof(bf)); break; case PERF_TYPE_HARDWARE: - perf_evsel__hw_name(evsel, bf, sizeof(bf)); + evsel__hw_name(evsel, bf, sizeof(bf)); break; case PERF_TYPE_HW_CACHE: - perf_evsel__hw_cache_name(evsel, bf, sizeof(bf)); + evsel__hw_cache_name(evsel, bf, sizeof(bf)); break; case PERF_TYPE_SOFTWARE: - if (evsel->tool_event) - perf_evsel__tool_name(bf, sizeof(bf)); + if (evsel__is_tool(evsel)) + evsel__tool_name(evsel->tool_event, bf, sizeof(bf)); else - perf_evsel__sw_name(evsel, bf, sizeof(bf)); + evsel__sw_name(evsel, bf, sizeof(bf)); break; case PERF_TYPE_TRACEPOINT: @@ -632,7 +801,7 @@ const char *perf_evsel__name(struct evsel *evsel) break; case PERF_TYPE_BREAKPOINT: - perf_evsel__bp_name(evsel, bf, sizeof(bf)); + evsel__bp_name(evsel, bf, sizeof(bf)); break; default: @@ -649,7 +818,18 @@ out_unknown: return "unknown"; } -const char *perf_evsel__group_name(struct evsel *evsel) +const char *evsel__metric_id(const struct evsel *evsel) +{ + if (evsel->metric_id) + return evsel->metric_id; + + if (evsel__is_tool(evsel)) + return perf_tool_event__to_str(evsel->tool_event); + + return "unknown"; +} + +const char *evsel__group_name(struct evsel *evsel) { return evsel->group_name ?: "anon group"; } @@ -664,21 +844,19 @@ const char *perf_evsel__group_name(struct evsel *evsel) * For record -e 'cycles,instructions' and report --group * 'cycles:u, instructions:u' */ -int perf_evsel__group_desc(struct evsel *evsel, char *buf, size_t size) +int evsel__group_desc(struct evsel *evsel, char *buf, size_t size) { int ret = 0; struct evsel *pos; - const char *group_name = perf_evsel__group_name(evsel); + const char *group_name = evsel__group_name(evsel); if (!evsel->forced_leader) ret = scnprintf(buf, size, "%s { ", group_name); - ret += scnprintf(buf + ret, size - ret, "%s", - perf_evsel__name(evsel)); + ret += scnprintf(buf + ret, size - ret, "%s", evsel__name(evsel)); for_each_group_member(pos, evsel) - ret += scnprintf(buf + ret, size - ret, ", %s", - perf_evsel__name(pos)); + ret += scnprintf(buf + ret, size - ret, ", %s", evsel__name(pos)); if (!evsel->forced_leader) ret += scnprintf(buf + ret, size - ret, " }"); @@ -686,14 +864,13 @@ int perf_evsel__group_desc(struct evsel *evsel, char *buf, size_t size) return ret; } -static void __perf_evsel__config_callchain(struct evsel *evsel, - struct record_opts *opts, - struct callchain_param *param) +static void __evsel__config_callchain(struct evsel *evsel, struct record_opts *opts, + struct callchain_param *param) { - bool function = perf_evsel__is_function_event(evsel); + bool function = evsel__is_function_event(evsel); struct perf_event_attr *attr = &evsel->core.attr; - perf_evsel__set_sample_bit(evsel, CALLCHAIN); + evsel__set_sample_bit(evsel, CALLCHAIN); attr->sample_max_stack = param->max_stack; @@ -708,11 +885,12 @@ static void __perf_evsel__config_callchain(struct evsel *evsel, "to get user callchain information. " "Falling back to framepointers.\n"); } else { - perf_evsel__set_sample_bit(evsel, BRANCH_STACK); + evsel__set_sample_bit(evsel, BRANCH_STACK); attr->branch_sample_type = PERF_SAMPLE_BRANCH_USER | PERF_SAMPLE_BRANCH_CALL_STACK | PERF_SAMPLE_BRANCH_NO_CYCLES | - PERF_SAMPLE_BRANCH_NO_FLAGS; + PERF_SAMPLE_BRANCH_NO_FLAGS | + PERF_SAMPLE_BRANCH_HW_INDEX; } } else pr_warning("Cannot use LBR callstack with branch stack. " @@ -721,15 +899,15 @@ static void __perf_evsel__config_callchain(struct evsel *evsel, if (param->record_mode == CALLCHAIN_DWARF) { if (!function) { - perf_evsel__set_sample_bit(evsel, REGS_USER); - perf_evsel__set_sample_bit(evsel, STACK_USER); + evsel__set_sample_bit(evsel, REGS_USER); + evsel__set_sample_bit(evsel, STACK_USER); if (opts->sample_user_regs && DWARF_MINIMAL_REGS != PERF_REGS_MASK) { attr->sample_regs_user |= DWARF_MINIMAL_REGS; pr_warning("WARNING: The use of --call-graph=dwarf may require all the user registers, " "specifying a subset with --user-regs may render DWARF unwinding unreliable, " "so the minimal registers set (IP, SP) is explicitly forced.\n"); } else { - attr->sample_regs_user |= PERF_REGS_MASK; + attr->sample_regs_user |= arch__user_reg_mask(); } attr->sample_stack_user = param->dump_size; attr->exclude_callchain_user = 1; @@ -745,36 +923,34 @@ static void __perf_evsel__config_callchain(struct evsel *evsel, } } -void perf_evsel__config_callchain(struct evsel *evsel, - struct record_opts *opts, - struct callchain_param *param) +void evsel__config_callchain(struct evsel *evsel, struct record_opts *opts, + struct callchain_param *param) { if (param->enabled) - return __perf_evsel__config_callchain(evsel, opts, param); + return __evsel__config_callchain(evsel, opts, param); } -static void -perf_evsel__reset_callgraph(struct evsel *evsel, - struct callchain_param *param) +static void evsel__reset_callgraph(struct evsel *evsel, struct callchain_param *param) { struct perf_event_attr *attr = &evsel->core.attr; - perf_evsel__reset_sample_bit(evsel, CALLCHAIN); + evsel__reset_sample_bit(evsel, CALLCHAIN); if (param->record_mode == CALLCHAIN_LBR) { - perf_evsel__reset_sample_bit(evsel, BRANCH_STACK); + evsel__reset_sample_bit(evsel, BRANCH_STACK); attr->branch_sample_type &= ~(PERF_SAMPLE_BRANCH_USER | - PERF_SAMPLE_BRANCH_CALL_STACK); + PERF_SAMPLE_BRANCH_CALL_STACK | + PERF_SAMPLE_BRANCH_HW_INDEX); } if (param->record_mode == CALLCHAIN_DWARF) { - perf_evsel__reset_sample_bit(evsel, REGS_USER); - perf_evsel__reset_sample_bit(evsel, STACK_USER); + evsel__reset_sample_bit(evsel, REGS_USER); + evsel__reset_sample_bit(evsel, STACK_USER); } } -static void apply_config_terms(struct evsel *evsel, - struct record_opts *opts, bool track) +static void evsel__apply_config_terms(struct evsel *evsel, + struct record_opts *opts, bool track) { - struct perf_evsel_config_term *term; + struct evsel_config_term *term; struct list_head *config_terms = &evsel->config_terms; struct perf_event_attr *attr = &evsel->core.attr; /* callgraph default */ @@ -787,69 +963,69 @@ static void apply_config_terms(struct evsel *evsel, list_for_each_entry(term, config_terms, list) { switch (term->type) { - case PERF_EVSEL__CONFIG_TERM_PERIOD: + case EVSEL__CONFIG_TERM_PERIOD: if (!(term->weak && opts->user_interval != ULLONG_MAX)) { attr->sample_period = term->val.period; attr->freq = 0; - perf_evsel__reset_sample_bit(evsel, PERIOD); + evsel__reset_sample_bit(evsel, PERIOD); } break; - case PERF_EVSEL__CONFIG_TERM_FREQ: + case EVSEL__CONFIG_TERM_FREQ: if (!(term->weak && opts->user_freq != UINT_MAX)) { attr->sample_freq = term->val.freq; attr->freq = 1; - perf_evsel__set_sample_bit(evsel, PERIOD); + evsel__set_sample_bit(evsel, PERIOD); } break; - case PERF_EVSEL__CONFIG_TERM_TIME: + case EVSEL__CONFIG_TERM_TIME: if (term->val.time) - perf_evsel__set_sample_bit(evsel, TIME); + evsel__set_sample_bit(evsel, TIME); else - perf_evsel__reset_sample_bit(evsel, TIME); + evsel__reset_sample_bit(evsel, TIME); break; - case PERF_EVSEL__CONFIG_TERM_CALLGRAPH: + case EVSEL__CONFIG_TERM_CALLGRAPH: callgraph_buf = term->val.str; break; - case PERF_EVSEL__CONFIG_TERM_BRANCH: + case EVSEL__CONFIG_TERM_BRANCH: if (term->val.str && strcmp(term->val.str, "no")) { - perf_evsel__set_sample_bit(evsel, BRANCH_STACK); + evsel__set_sample_bit(evsel, BRANCH_STACK); parse_branch_str(term->val.str, &attr->branch_sample_type); } else - perf_evsel__reset_sample_bit(evsel, BRANCH_STACK); + evsel__reset_sample_bit(evsel, BRANCH_STACK); break; - case PERF_EVSEL__CONFIG_TERM_STACK_USER: + case EVSEL__CONFIG_TERM_STACK_USER: dump_size = term->val.stack_user; break; - case PERF_EVSEL__CONFIG_TERM_MAX_STACK: + case EVSEL__CONFIG_TERM_MAX_STACK: max_stack = term->val.max_stack; break; - case PERF_EVSEL__CONFIG_TERM_MAX_EVENTS: + case EVSEL__CONFIG_TERM_MAX_EVENTS: evsel->max_events = term->val.max_events; break; - case PERF_EVSEL__CONFIG_TERM_INHERIT: + case EVSEL__CONFIG_TERM_INHERIT: /* * attr->inherit should has already been set by - * perf_evsel__config. If user explicitly set + * evsel__config. If user explicitly set * inherit using config terms, override global * opt->no_inherit setting. */ attr->inherit = term->val.inherit ? 1 : 0; break; - case PERF_EVSEL__CONFIG_TERM_OVERWRITE: + case EVSEL__CONFIG_TERM_OVERWRITE: attr->write_backward = term->val.overwrite ? 1 : 0; break; - case PERF_EVSEL__CONFIG_TERM_DRV_CFG: + case EVSEL__CONFIG_TERM_DRV_CFG: break; - case PERF_EVSEL__CONFIG_TERM_PERCORE: + case EVSEL__CONFIG_TERM_PERCORE: break; - case PERF_EVSEL__CONFIG_TERM_AUX_OUTPUT: + case EVSEL__CONFIG_TERM_AUX_OUTPUT: attr->aux_output = term->val.aux_output ? 1 : 0; break; - case PERF_EVSEL__CONFIG_TERM_AUX_SAMPLE_SIZE: + case EVSEL__CONFIG_TERM_AUX_SAMPLE_SIZE: /* Already applied by auxtrace */ break; - case PERF_EVSEL__CONFIG_TERM_CFG_CHG: + case EVSEL__CONFIG_TERM_CFG_CHG: break; default: break; @@ -890,30 +1066,23 @@ static void apply_config_terms(struct evsel *evsel, /* If global callgraph set, clear it */ if (callchain_param.enabled) - perf_evsel__reset_callgraph(evsel, &callchain_param); + evsel__reset_callgraph(evsel, &callchain_param); /* set perf-event callgraph */ if (param.enabled) { if (sample_address) { - perf_evsel__set_sample_bit(evsel, ADDR); - perf_evsel__set_sample_bit(evsel, DATA_SRC); + evsel__set_sample_bit(evsel, ADDR); + evsel__set_sample_bit(evsel, DATA_SRC); evsel->core.attr.mmap_data = track; } - perf_evsel__config_callchain(evsel, opts, ¶m); + evsel__config_callchain(evsel, opts, ¶m); } } } -static bool is_dummy_event(struct evsel *evsel) -{ - return (evsel->core.attr.type == PERF_TYPE_SOFTWARE) && - (evsel->core.attr.config == PERF_COUNT_SW_DUMMY); -} - -struct perf_evsel_config_term *__perf_evsel__get_config_term(struct evsel *evsel, - enum evsel_term_type type) +struct evsel_config_term *__evsel__get_config_term(struct evsel *evsel, enum evsel_term_type type) { - struct perf_evsel_config_term *term, *found_term = NULL; + struct evsel_config_term *term, *found_term = NULL; list_for_each_entry(term, &evsel->config_terms, list) { if (term->type == type) @@ -923,6 +1092,36 @@ struct perf_evsel_config_term *__perf_evsel__get_config_term(struct evsel *evsel return found_term; } +void __weak arch_evsel__set_sample_weight(struct evsel *evsel) +{ + evsel__set_sample_bit(evsel, WEIGHT); +} + +void __weak arch_evsel__fixup_new_cycles(struct perf_event_attr *attr __maybe_unused) +{ +} + +void __weak arch__post_evsel_config(struct evsel *evsel __maybe_unused, + struct perf_event_attr *attr __maybe_unused) +{ +} + +static void evsel__set_default_freq_period(struct record_opts *opts, + struct perf_event_attr *attr) +{ + if (opts->freq) { + attr->freq = 1; + attr->sample_freq = opts->freq; + } else { + attr->sample_period = opts->default_interval; + } +} + +static bool evsel__is_offcpu_event(struct evsel *evsel) +{ + return evsel__is_bpf_output(evsel) && !strcmp(evsel->name, OFFCPU_EVENT); +} + /* * The enable_on_exec/disabled value strategy: * @@ -951,10 +1150,10 @@ struct perf_evsel_config_term *__perf_evsel__get_config_term(struct evsel *evsel * enable/disable events specifically, as there's no * initial traced exec call. */ -void perf_evsel__config(struct evsel *evsel, struct record_opts *opts, - struct callchain_param *callchain) +void evsel__config(struct evsel *evsel, struct record_opts *opts, + struct callchain_param *callchain) { - struct evsel *leader = evsel->leader; + struct evsel *leader = evsel__leader(evsel); struct perf_event_attr *attr = &evsel->core.attr; int track = evsel->tracking; bool per_cpu = opts->target.default_per_cpu && !opts->target.per_thread; @@ -962,18 +1161,19 @@ void perf_evsel__config(struct evsel *evsel, struct record_opts *opts, attr->sample_id_all = perf_missing_features.sample_id_all ? 0 : 1; attr->inherit = !opts->no_inherit; attr->write_backward = opts->overwrite ? 1 : 0; + attr->read_format = PERF_FORMAT_LOST; - perf_evsel__set_sample_bit(evsel, IP); - perf_evsel__set_sample_bit(evsel, TID); + evsel__set_sample_bit(evsel, IP); + evsel__set_sample_bit(evsel, TID); if (evsel->sample_read) { - perf_evsel__set_sample_bit(evsel, READ); + evsel__set_sample_bit(evsel, READ); /* * We need ID even in case of single event, because * PERF_SAMPLE_READ process ID specific data. */ - perf_evsel__set_sample_id(evsel, false); + evsel__set_sample_id(evsel, false); /* * Apply group format only if we belong to group @@ -989,35 +1189,18 @@ void perf_evsel__config(struct evsel *evsel, struct record_opts *opts, * We default some events to have a default interval. But keep * it a weak assumption overridable by the user. */ - if (!attr->sample_period || (opts->user_freq != UINT_MAX || - opts->user_interval != ULLONG_MAX)) { - if (opts->freq) { - perf_evsel__set_sample_bit(evsel, PERIOD); - attr->freq = 1; - attr->sample_freq = opts->freq; - } else { - attr->sample_period = opts->default_interval; - } - } + if ((evsel->is_libpfm_event && !attr->sample_period) || + (!evsel->is_libpfm_event && (!attr->sample_period || + opts->user_freq != UINT_MAX || + opts->user_interval != ULLONG_MAX))) + evsel__set_default_freq_period(opts, attr); /* - * Disable sampling for all group members other - * than leader in case leader 'leads' the sampling. + * If attr->freq was set (here or earlier), ask for period + * to be sampled. */ - if ((leader != evsel) && leader->sample_read) { - attr->freq = 0; - attr->sample_freq = 0; - attr->sample_period = 0; - attr->write_backward = 0; - - /* - * We don't get sample for slave events, we make them - * when delivering group leader sample. Set the slave - * event to follow the master sample_type to ease up - * report. - */ - attr->sample_type = leader->core.attr.sample_type; - } + if (attr->freq) + evsel__set_sample_bit(evsel, PERIOD); if (opts->no_samples) attr->sample_freq = 0; @@ -1031,7 +1214,7 @@ void perf_evsel__config(struct evsel *evsel, struct record_opts *opts, } if (opts->sample_address) { - perf_evsel__set_sample_bit(evsel, ADDR); + evsel__set_sample_bit(evsel, ADDR); attr->mmap_data = track; } @@ -1040,24 +1223,26 @@ void perf_evsel__config(struct evsel *evsel, struct record_opts *opts, * event, due to issues with page faults while tracing page * fault handler and its overall trickiness nature. */ - if (perf_evsel__is_function_event(evsel)) + if (evsel__is_function_event(evsel)) evsel->core.attr.exclude_callchain_user = 1; if (callchain && callchain->enabled && !evsel->no_aux_samples) - perf_evsel__config_callchain(evsel, opts, callchain); + evsel__config_callchain(evsel, opts, callchain); - if (opts->sample_intr_regs) { + if (opts->sample_intr_regs && !evsel->no_aux_samples && + !evsel__is_dummy_event(evsel)) { attr->sample_regs_intr = opts->sample_intr_regs; - perf_evsel__set_sample_bit(evsel, REGS_INTR); + evsel__set_sample_bit(evsel, REGS_INTR); } - if (opts->sample_user_regs) { + if (opts->sample_user_regs && !evsel->no_aux_samples && + !evsel__is_dummy_event(evsel)) { attr->sample_regs_user |= opts->sample_user_regs; - perf_evsel__set_sample_bit(evsel, REGS_USER); + evsel__set_sample_bit(evsel, REGS_USER); } if (target__has_cpu(&opts->target) || opts->sample_cpu) - perf_evsel__set_sample_bit(evsel, CPU); + evsel__set_sample_bit(evsel, CPU); /* * When the user explicitly disabled time don't force it here. @@ -1066,47 +1251,65 @@ void perf_evsel__config(struct evsel *evsel, struct record_opts *opts, (!perf_missing_features.sample_id_all && (!opts->no_inherit || target__has_cpu(&opts->target) || per_cpu || opts->sample_time_set))) - perf_evsel__set_sample_bit(evsel, TIME); + evsel__set_sample_bit(evsel, TIME); if (opts->raw_samples && !evsel->no_aux_samples) { - perf_evsel__set_sample_bit(evsel, TIME); - perf_evsel__set_sample_bit(evsel, RAW); - perf_evsel__set_sample_bit(evsel, CPU); + evsel__set_sample_bit(evsel, TIME); + evsel__set_sample_bit(evsel, RAW); + evsel__set_sample_bit(evsel, CPU); } if (opts->sample_address) - perf_evsel__set_sample_bit(evsel, DATA_SRC); + evsel__set_sample_bit(evsel, DATA_SRC); if (opts->sample_phys_addr) - perf_evsel__set_sample_bit(evsel, PHYS_ADDR); + evsel__set_sample_bit(evsel, PHYS_ADDR); if (opts->no_buffering) { attr->watermark = 0; attr->wakeup_events = 1; } if (opts->branch_stack && !evsel->no_aux_samples) { - perf_evsel__set_sample_bit(evsel, BRANCH_STACK); + evsel__set_sample_bit(evsel, BRANCH_STACK); attr->branch_sample_type = opts->branch_stack; } if (opts->sample_weight) - perf_evsel__set_sample_bit(evsel, WEIGHT); + arch_evsel__set_sample_weight(evsel); - attr->task = track; - attr->mmap = track; - attr->mmap2 = track && !perf_missing_features.mmap2; - attr->comm = track; - attr->ksymbol = track && !perf_missing_features.ksymbol; + attr->task = track; + attr->mmap = track; + attr->mmap2 = track && !perf_missing_features.mmap2; + attr->comm = track; + attr->build_id = track && opts->build_id; + + /* + * ksymbol is tracked separately with text poke because it needs to be + * system wide and enabled immediately. + */ + if (!opts->text_poke) + attr->ksymbol = track && !perf_missing_features.ksymbol; attr->bpf_event = track && !opts->no_bpf_event && !perf_missing_features.bpf; if (opts->record_namespaces) attr->namespaces = track; + if (opts->record_cgroup) { + attr->cgroup = track && !perf_missing_features.cgroup; + evsel__set_sample_bit(evsel, CGROUP); + } + + if (opts->sample_data_page_size) + evsel__set_sample_bit(evsel, DATA_PAGE_SIZE); + + if (opts->sample_code_page_size) + evsel__set_sample_bit(evsel, CODE_PAGE_SIZE); + if (opts->record_switch_events) attr->context_switch = track; if (opts->sample_transaction) - perf_evsel__set_sample_bit(evsel, TRANSACTION); + evsel__set_sample_bit(evsel, TRANSACTION); if (opts->running_time) { evsel->core.attr.read_format |= @@ -1120,15 +1323,15 @@ void perf_evsel__config(struct evsel *evsel, struct record_opts *opts, * Disabling only independent events or group leaders, * keeping group members enabled. */ - if (perf_evsel__is_group_leader(evsel)) + if (evsel__is_group_leader(evsel)) attr->disabled = 1; /* * Setting enable_on_exec for independent events and * group leaders for traced executed by perf. */ - if (target__none(&opts->target) && perf_evsel__is_group_leader(evsel) && - !opts->initial_delay) + if (target__none(&opts->target) && evsel__is_group_leader(evsel) && + !opts->initial_delay) attr->enable_on_exec = 1; if (evsel->immediate) { @@ -1162,28 +1365,36 @@ void perf_evsel__config(struct evsel *evsel, struct record_opts *opts, * Apply event specific term settings, * it overloads any global configuration. */ - apply_config_terms(evsel, opts, track); + evsel__apply_config_terms(evsel, opts, track); evsel->ignore_missing_thread = opts->ignore_missing_thread; /* The --period option takes the precedence. */ if (opts->period_set) { if (opts->period) - perf_evsel__set_sample_bit(evsel, PERIOD); + evsel__set_sample_bit(evsel, PERIOD); else - perf_evsel__reset_sample_bit(evsel, PERIOD); + evsel__reset_sample_bit(evsel, PERIOD); } /* + * A dummy event never triggers any actual counter and therefore + * cannot be used with branch_stack. + * * For initial_delay, a dummy event is added implicitly. * The software event will trigger -EOPNOTSUPP error out, * if BRANCH_STACK bit is set. */ - if (opts->initial_delay && is_dummy_event(evsel)) - perf_evsel__reset_sample_bit(evsel, BRANCH_STACK); + if (evsel__is_dummy_event(evsel)) + evsel__reset_sample_bit(evsel, BRANCH_STACK); + + if (evsel__is_offcpu_event(evsel)) + evsel->core.attr.sample_type &= OFFCPU_SAMPLE_TYPES; + + arch__post_evsel_config(evsel, attr); } -int perf_evsel__set_filter(struct evsel *evsel, const char *filter) +int evsel__set_filter(struct evsel *evsel, const char *filter) { char *new_filter = strdup(filter); @@ -1196,13 +1407,12 @@ int perf_evsel__set_filter(struct evsel *evsel, const char *filter) return -1; } -static int perf_evsel__append_filter(struct evsel *evsel, - const char *fmt, const char *filter) +static int evsel__append_filter(struct evsel *evsel, const char *fmt, const char *filter) { char *new_filter; if (evsel->filter == NULL) - return perf_evsel__set_filter(evsel, filter); + return evsel__set_filter(evsel, filter); if (asprintf(&new_filter, fmt, evsel->filter, filter) > 0) { free(evsel->filter); @@ -1213,20 +1423,20 @@ static int perf_evsel__append_filter(struct evsel *evsel, return -1; } -int perf_evsel__append_tp_filter(struct evsel *evsel, const char *filter) +int evsel__append_tp_filter(struct evsel *evsel, const char *filter) { - return perf_evsel__append_filter(evsel, "(%s) && (%s)", filter); + return evsel__append_filter(evsel, "(%s) && (%s)", filter); } -int perf_evsel__append_addr_filter(struct evsel *evsel, const char *filter) +int evsel__append_addr_filter(struct evsel *evsel, const char *filter) { - return perf_evsel__append_filter(evsel, "%s,%s", filter); + return evsel__append_filter(evsel, "%s,%s", filter); } /* Caller has to clear disabled after going through all CPUs. */ -int evsel__enable_cpu(struct evsel *evsel, int cpu) +int evsel__enable_cpu(struct evsel *evsel, int cpu_map_idx) { - return perf_evsel__enable_cpu(&evsel->core, cpu); + return perf_evsel__enable_cpu(&evsel->core, cpu_map_idx); } int evsel__enable(struct evsel *evsel) @@ -1239,9 +1449,9 @@ int evsel__enable(struct evsel *evsel) } /* Caller has to set disabled after going through all CPUs. */ -int evsel__disable_cpu(struct evsel *evsel, int cpu) +int evsel__disable_cpu(struct evsel *evsel, int cpu_map_idx) { - return perf_evsel__disable_cpu(&evsel->core, cpu); + return perf_evsel__disable_cpu(&evsel->core, cpu_map_idx); } int evsel__disable(struct evsel *evsel) @@ -1259,11 +1469,11 @@ int evsel__disable(struct evsel *evsel) return err; } -static void perf_evsel__free_config_terms(struct evsel *evsel) +void free_config_terms(struct list_head *config_terms) { - struct perf_evsel_config_term *term, *h; + struct evsel_config_term *term, *h; - list_for_each_entry_safe(term, h, &evsel->config_terms, list) { + list_for_each_entry_safe(term, h, config_terms, list) { list_del_init(&term->list); if (term->free_str) zfree(&term->val.str); @@ -1271,43 +1481,56 @@ static void perf_evsel__free_config_terms(struct evsel *evsel) } } -void perf_evsel__exit(struct evsel *evsel) +static void evsel__free_config_terms(struct evsel *evsel) +{ + free_config_terms(&evsel->config_terms); +} + +void evsel__exit(struct evsel *evsel) { assert(list_empty(&evsel->core.node)); assert(evsel->evlist == NULL); - perf_evsel__free_counts(evsel); + bpf_counter__destroy(evsel); + evsel__free_counts(evsel); perf_evsel__free_fd(&evsel->core); perf_evsel__free_id(&evsel->core); - perf_evsel__free_config_terms(evsel); + evsel__free_config_terms(evsel); cgroup__put(evsel->cgrp); perf_cpu_map__put(evsel->core.cpus); perf_cpu_map__put(evsel->core.own_cpus); perf_thread_map__put(evsel->core.threads); zfree(&evsel->group_name); zfree(&evsel->name); + zfree(&evsel->pmu_name); + zfree(&evsel->unit); + zfree(&evsel->metric_id); + evsel__zero_per_pkg(evsel); + hashmap__free(evsel->per_pkg_mask); + evsel->per_pkg_mask = NULL; + zfree(&evsel->metric_events); perf_evsel__object.fini(evsel); } void evsel__delete(struct evsel *evsel) { - perf_evsel__exit(evsel); + evsel__exit(evsel); free(evsel); } -void perf_evsel__compute_deltas(struct evsel *evsel, int cpu, int thread, - struct perf_counts_values *count) +void evsel__compute_deltas(struct evsel *evsel, int cpu_map_idx, int thread, + struct perf_counts_values *count) { struct perf_counts_values tmp; if (!evsel->prev_raw_counts) return; - if (cpu == -1) { + if (cpu_map_idx == -1) { tmp = evsel->prev_raw_counts->aggr; evsel->prev_raw_counts->aggr = *count; } else { - tmp = *perf_counts(evsel->prev_raw_counts, cpu, thread); - *perf_counts(evsel->prev_raw_counts, cpu, thread) = *count; + tmp = *perf_counts(evsel->prev_raw_counts, cpu_map_idx, thread); + *perf_counts(evsel->prev_raw_counts, cpu_map_idx, thread) = *count; } count->val = count->val - tmp.val; @@ -1315,55 +1538,33 @@ void perf_evsel__compute_deltas(struct evsel *evsel, int cpu, int thread, count->run = count->run - tmp.run; } -void perf_counts_values__scale(struct perf_counts_values *count, - bool scale, s8 *pscaled) +static int evsel__read_one(struct evsel *evsel, int cpu_map_idx, int thread) { - s8 scaled = 0; + struct perf_counts_values *count = perf_counts(evsel->counts, cpu_map_idx, thread); - if (scale) { - if (count->run == 0) { - scaled = -1; - count->val = 0; - } else if (count->run < count->ena) { - scaled = 1; - count->val = (u64)((double) count->val * count->ena / count->run); - } - } - - if (pscaled) - *pscaled = scaled; -} - -static int -perf_evsel__read_one(struct evsel *evsel, int cpu, int thread) -{ - struct perf_counts_values *count = perf_counts(evsel->counts, cpu, thread); - - return perf_evsel__read(&evsel->core, cpu, thread, count); + return perf_evsel__read(&evsel->core, cpu_map_idx, thread, count); } -static void -perf_evsel__set_count(struct evsel *counter, int cpu, int thread, - u64 val, u64 ena, u64 run) +static void evsel__set_count(struct evsel *counter, int cpu_map_idx, int thread, + u64 val, u64 ena, u64 run, u64 lost) { struct perf_counts_values *count; - count = perf_counts(counter->counts, cpu, thread); + count = perf_counts(counter->counts, cpu_map_idx, thread); count->val = val; count->ena = ena; count->run = run; + count->lost = lost; - perf_counts__set_loaded(counter->counts, cpu, thread, true); + perf_counts__set_loaded(counter->counts, cpu_map_idx, thread, true); } -static int -perf_evsel__process_group_data(struct evsel *leader, - int cpu, int thread, u64 *data) +static int evsel__process_group_data(struct evsel *leader, int cpu_map_idx, int thread, u64 *data) { u64 read_format = leader->core.attr.read_format; struct sample_read_value *v; - u64 nr, ena = 0, run = 0, i; + u64 nr, ena = 0, run = 0, lost = 0; nr = *data++; @@ -1376,27 +1577,24 @@ perf_evsel__process_group_data(struct evsel *leader, if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) run = *data++; - v = (struct sample_read_value *) data; - - perf_evsel__set_count(leader, cpu, thread, - v[0].value, ena, run); - - for (i = 1; i < nr; i++) { + v = (void *)data; + sample_read_group__for_each(v, nr, read_format) { struct evsel *counter; - counter = perf_evlist__id2evsel(leader->evlist, v[i].id); + counter = evlist__id2evsel(leader->evlist, v->id); if (!counter) return -EINVAL; - perf_evsel__set_count(counter, cpu, thread, - v[i].value, ena, run); + if (read_format & PERF_FORMAT_LOST) + lost = v->lost; + + evsel__set_count(counter, cpu_map_idx, thread, v->value, ena, run, lost); } return 0; } -static int -perf_evsel__read_group(struct evsel *leader, int cpu, int thread) +static int evsel__read_group(struct evsel *leader, int cpu_map_idx, int thread) { struct perf_stat_evsel *ps = leader->stats; u64 read_format = leader->core.attr.read_format; @@ -1406,7 +1604,7 @@ perf_evsel__read_group(struct evsel *leader, int cpu, int thread) if (!(read_format & PERF_FORMAT_ID)) return -EINVAL; - if (!perf_evsel__is_group_leader(leader)) + if (!evsel__is_group_leader(leader)) return -EINVAL; if (!data) { @@ -1417,52 +1615,72 @@ perf_evsel__read_group(struct evsel *leader, int cpu, int thread) ps->group_data = data; } - if (FD(leader, cpu, thread) < 0) + if (FD(leader, cpu_map_idx, thread) < 0) return -EINVAL; - if (readn(FD(leader, cpu, thread), data, size) <= 0) + if (readn(FD(leader, cpu_map_idx, thread), data, size) <= 0) return -errno; - return perf_evsel__process_group_data(leader, cpu, thread, data); + return evsel__process_group_data(leader, cpu_map_idx, thread, data); } -int perf_evsel__read_counter(struct evsel *evsel, int cpu, int thread) +int evsel__read_counter(struct evsel *evsel, int cpu_map_idx, int thread) { u64 read_format = evsel->core.attr.read_format; if (read_format & PERF_FORMAT_GROUP) - return perf_evsel__read_group(evsel, cpu, thread); - else - return perf_evsel__read_one(evsel, cpu, thread); + return evsel__read_group(evsel, cpu_map_idx, thread); + + return evsel__read_one(evsel, cpu_map_idx, thread); } -int __perf_evsel__read_on_cpu(struct evsel *evsel, - int cpu, int thread, bool scale) +int __evsel__read_on_cpu(struct evsel *evsel, int cpu_map_idx, int thread, bool scale) { struct perf_counts_values count; size_t nv = scale ? 3 : 1; - if (FD(evsel, cpu, thread) < 0) + if (FD(evsel, cpu_map_idx, thread) < 0) return -EINVAL; - if (evsel->counts == NULL && perf_evsel__alloc_counts(evsel, cpu + 1, thread + 1) < 0) + if (evsel->counts == NULL && evsel__alloc_counts(evsel) < 0) return -ENOMEM; - if (readn(FD(evsel, cpu, thread), &count, nv * sizeof(u64)) <= 0) + if (readn(FD(evsel, cpu_map_idx, thread), &count, nv * sizeof(u64)) <= 0) return -errno; - perf_evsel__compute_deltas(evsel, cpu, thread, &count); + evsel__compute_deltas(evsel, cpu_map_idx, thread, &count); perf_counts_values__scale(&count, scale, NULL); - *perf_counts(evsel->counts, cpu, thread) = count; + *perf_counts(evsel->counts, cpu_map_idx, thread) = count; return 0; } -static int get_group_fd(struct evsel *evsel, int cpu, int thread) +static int evsel__match_other_cpu(struct evsel *evsel, struct evsel *other, + int cpu_map_idx) { - struct evsel *leader = evsel->leader; + struct perf_cpu cpu; + + cpu = perf_cpu_map__cpu(evsel->core.cpus, cpu_map_idx); + return perf_cpu_map__idx(other->core.cpus, cpu); +} + +static int evsel__hybrid_group_cpu_map_idx(struct evsel *evsel, int cpu_map_idx) +{ + struct evsel *leader = evsel__leader(evsel); + + if ((evsel__is_hybrid(evsel) && !evsel__is_hybrid(leader)) || + (!evsel__is_hybrid(evsel) && evsel__is_hybrid(leader))) { + return evsel__match_other_cpu(evsel, leader, cpu_map_idx); + } + + return cpu_map_idx; +} + +static int get_group_fd(struct evsel *evsel, int cpu_map_idx, int thread) +{ + struct evsel *leader = evsel__leader(evsel); int fd; - if (perf_evsel__is_group_leader(evsel)) + if (evsel__is_group_leader(evsel)) return -1; /* @@ -1471,15 +1689,17 @@ static int get_group_fd(struct evsel *evsel, int cpu, int thread) */ BUG_ON(!leader->core.fd); - fd = FD(leader, cpu, thread); + cpu_map_idx = evsel__hybrid_group_cpu_map_idx(evsel, cpu_map_idx); + if (cpu_map_idx == -1) + return -1; + + fd = FD(leader, cpu_map_idx, thread); BUG_ON(fd == -1); return fd; } -static void perf_evsel__remove_fd(struct evsel *pos, - int nr_cpus, int nr_threads, - int thread_idx) +static void evsel__remove_fd(struct evsel *pos, int nr_cpus, int nr_threads, int thread_idx) { for (int cpu = 0; cpu < nr_cpus; cpu++) for (int thread = thread_idx; thread < nr_threads - 1; thread++) @@ -1487,18 +1707,18 @@ static void perf_evsel__remove_fd(struct evsel *pos, } static int update_fds(struct evsel *evsel, - int nr_cpus, int cpu_idx, + int nr_cpus, int cpu_map_idx, int nr_threads, int thread_idx) { struct evsel *pos; - if (cpu_idx >= nr_cpus || thread_idx >= nr_threads) + if (cpu_map_idx >= nr_cpus || thread_idx >= nr_threads) return -EINVAL; evlist__for_each_entry(evsel->evlist, pos) { - nr_cpus = pos != evsel ? nr_cpus : cpu_idx; + nr_cpus = pos != evsel ? nr_cpus : cpu_map_idx; - perf_evsel__remove_fd(pos, nr_cpus, nr_threads, thread_idx); + evsel__remove_fd(pos, nr_cpus, nr_threads, thread_idx); /* * Since fds for next evsel has not been created, @@ -1510,10 +1730,10 @@ static int update_fds(struct evsel *evsel, return 0; } -static bool ignore_missing_thread(struct evsel *evsel, - int nr_cpus, int cpu, - struct perf_thread_map *threads, - int thread, int err) +static bool evsel__ignore_missing_thread(struct evsel *evsel, + int nr_cpus, int cpu_map_idx, + struct perf_thread_map *threads, + int thread, int err) { pid_t ignore_pid = perf_thread_map__pid(threads, thread); @@ -1536,7 +1756,7 @@ static bool ignore_missing_thread(struct evsel *evsel, * We should remove fd for missing_thread first * because thread_map__remove() will decrease threads->nr. */ - if (update_fds(evsel, nr_cpus, cpu, threads->nr, thread)) + if (update_fds(evsel, nr_cpus, cpu_map_idx, threads->nr, thread)) return false; if (thread_map__remove(threads, thread)) @@ -1563,59 +1783,43 @@ static void display_attr(struct perf_event_attr *attr) } } -static int perf_event_open(struct evsel *evsel, - pid_t pid, int cpu, int group_fd, - unsigned long flags) +bool evsel__precise_ip_fallback(struct evsel *evsel) { - int precise_ip = evsel->core.attr.precise_ip; - int fd; - - while (1) { - pr_debug2_peo("sys_perf_event_open: pid %d cpu %d group_fd %d flags %#lx", - pid, cpu, group_fd, flags); - - fd = sys_perf_event_open(&evsel->core.attr, pid, cpu, group_fd, flags); - if (fd >= 0) - break; - - /* Do not try less precise if not requested. */ - if (!evsel->precise_max) - break; - - /* - * We tried all the precise_ip values, and it's - * still failing, so leave it to standard fallback. - */ - if (!evsel->core.attr.precise_ip) { - evsel->core.attr.precise_ip = precise_ip; - break; - } + /* Do not try less precise if not requested. */ + if (!evsel->precise_max) + return false; - pr_debug2_peo("\nsys_perf_event_open failed, error %d\n", -ENOTSUP); - evsel->core.attr.precise_ip--; - pr_debug2_peo("decreasing precise_ip by one (%d)\n", evsel->core.attr.precise_ip); - display_attr(&evsel->core.attr); + /* + * We tried all the precise_ip values, and it's + * still failing, so leave it to standard fallback. + */ + if (!evsel->core.attr.precise_ip) { + evsel->core.attr.precise_ip = evsel->precise_ip_original; + return false; } - return fd; + if (!evsel->precise_ip_original) + evsel->precise_ip_original = evsel->core.attr.precise_ip; + + evsel->core.attr.precise_ip--; + pr_debug2_peo("decreasing precise_ip by one (%d)\n", evsel->core.attr.precise_ip); + display_attr(&evsel->core.attr); + return true; } -static int evsel__open_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, - struct perf_thread_map *threads, - int start_cpu, int end_cpu) +static struct perf_cpu_map *empty_cpu_map; +static struct perf_thread_map *empty_thread_map; + +static int __evsel__prepare_open(struct evsel *evsel, struct perf_cpu_map *cpus, + struct perf_thread_map *threads) { - int cpu, thread, nthreads; - unsigned long flags = PERF_FLAG_FD_CLOEXEC; - int pid = -1, err, old_errno; - enum { NO_CHANGE, SET_TO_MAX, INCREASED_MAX } set_rlimit = NO_CHANGE; + int nthreads = perf_thread_map__nr(threads); if ((perf_missing_features.write_backward && evsel->core.attr.write_backward) || (perf_missing_features.aux_output && evsel->core.attr.aux_output)) return -EINVAL; if (cpus == NULL) { - static struct perf_cpu_map *empty_cpu_map; - if (empty_cpu_map == NULL) { empty_cpu_map = perf_cpu_map__dummy_new(); if (empty_cpu_map == NULL) @@ -1626,8 +1830,6 @@ static int evsel__open_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, } if (threads == NULL) { - static struct perf_thread_map *empty_thread_map; - if (empty_thread_map == NULL) { empty_thread_map = thread_map__new_by_tid(-1); if (empty_thread_map == NULL) @@ -1637,21 +1839,25 @@ static int evsel__open_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, threads = empty_thread_map; } - if (evsel->core.system_wide) - nthreads = 1; - else - nthreads = threads->nr; - if (evsel->core.fd == NULL && - perf_evsel__alloc_fd(&evsel->core, cpus->nr, nthreads) < 0) + perf_evsel__alloc_fd(&evsel->core, perf_cpu_map__nr(cpus), nthreads) < 0) return -ENOMEM; - if (evsel->cgrp) { - flags |= PERF_FLAG_PID_CGROUP; - pid = evsel->cgrp->fd; - } + evsel->open_flags = PERF_FLAG_FD_CLOEXEC; + if (evsel->cgrp) + evsel->open_flags |= PERF_FLAG_PID_CGROUP; -fallback_missing_features: + return 0; +} + +static void evsel__disable_missing_features(struct evsel *evsel) +{ + if (perf_missing_features.read_lost) + evsel->core.attr.read_format &= ~PERF_FORMAT_LOST; + if (perf_missing_features.weight_struct) { + evsel__set_sample_bit(evsel, WEIGHT); + evsel__reset_sample_bit(evsel, WEIGHT_STRUCT); + } if (perf_missing_features.clockid_wrong) evsel->core.attr.clockid = CLOCK_MONOTONIC; /* should always work */ if (perf_missing_features.clockid) { @@ -1659,10 +1865,10 @@ fallback_missing_features: evsel->core.attr.clockid = 0; } if (perf_missing_features.cloexec) - flags &= ~(unsigned long)PERF_FLAG_FD_CLOEXEC; + evsel->open_flags &= ~(unsigned long)PERF_FLAG_FD_CLOEXEC; if (perf_missing_features.mmap2) evsel->core.attr.mmap2 = 0; - if (perf_missing_features.exclude_guest) + if (evsel->pmu && evsel->pmu->missing_features.exclude_guest) evsel->core.attr.exclude_guest = evsel->core.attr.exclude_host = 0; if (perf_missing_features.lbr_flags) evsel->core.attr.branch_sample_type &= ~(PERF_SAMPLE_BRANCH_NO_FLAGS | @@ -1673,51 +1879,235 @@ fallback_missing_features: evsel->core.attr.ksymbol = 0; if (perf_missing_features.bpf) evsel->core.attr.bpf_event = 0; -retry_sample_id: + if (perf_missing_features.branch_hw_idx) + evsel->core.attr.branch_sample_type &= ~PERF_SAMPLE_BRANCH_HW_INDEX; if (perf_missing_features.sample_id_all) evsel->core.attr.sample_id_all = 0; +} + +int evsel__prepare_open(struct evsel *evsel, struct perf_cpu_map *cpus, + struct perf_thread_map *threads) +{ + int err; + + err = __evsel__prepare_open(evsel, cpus, threads); + if (err) + return err; + + evsel__disable_missing_features(evsel); + + return err; +} + +bool evsel__detect_missing_features(struct evsel *evsel) +{ + /* + * Must probe features in the order they were added to the + * perf_event_attr interface. + */ + if (!perf_missing_features.read_lost && + (evsel->core.attr.read_format & PERF_FORMAT_LOST)) { + perf_missing_features.read_lost = true; + pr_debug2("switching off PERF_FORMAT_LOST support\n"); + return true; + } else if (!perf_missing_features.weight_struct && + (evsel->core.attr.sample_type & PERF_SAMPLE_WEIGHT_STRUCT)) { + perf_missing_features.weight_struct = true; + pr_debug2("switching off weight struct support\n"); + return true; + } else if (!perf_missing_features.code_page_size && + (evsel->core.attr.sample_type & PERF_SAMPLE_CODE_PAGE_SIZE)) { + perf_missing_features.code_page_size = true; + pr_debug2_peo("Kernel has no PERF_SAMPLE_CODE_PAGE_SIZE support, bailing out\n"); + return false; + } else if (!perf_missing_features.data_page_size && + (evsel->core.attr.sample_type & PERF_SAMPLE_DATA_PAGE_SIZE)) { + perf_missing_features.data_page_size = true; + pr_debug2_peo("Kernel has no PERF_SAMPLE_DATA_PAGE_SIZE support, bailing out\n"); + return false; + } else if (!perf_missing_features.cgroup && evsel->core.attr.cgroup) { + perf_missing_features.cgroup = true; + pr_debug2_peo("Kernel has no cgroup sampling support, bailing out\n"); + return false; + } else if (!perf_missing_features.branch_hw_idx && + (evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_HW_INDEX)) { + perf_missing_features.branch_hw_idx = true; + pr_debug2("switching off branch HW index support\n"); + return true; + } else if (!perf_missing_features.aux_output && evsel->core.attr.aux_output) { + perf_missing_features.aux_output = true; + pr_debug2_peo("Kernel has no attr.aux_output support, bailing out\n"); + return false; + } else if (!perf_missing_features.bpf && evsel->core.attr.bpf_event) { + perf_missing_features.bpf = true; + pr_debug2_peo("switching off bpf_event\n"); + return true; + } else if (!perf_missing_features.ksymbol && evsel->core.attr.ksymbol) { + perf_missing_features.ksymbol = true; + pr_debug2_peo("switching off ksymbol\n"); + return true; + } else if (!perf_missing_features.write_backward && evsel->core.attr.write_backward) { + perf_missing_features.write_backward = true; + pr_debug2_peo("switching off write_backward\n"); + return false; + } else if (!perf_missing_features.clockid_wrong && evsel->core.attr.use_clockid) { + perf_missing_features.clockid_wrong = true; + pr_debug2_peo("switching off clockid\n"); + return true; + } else if (!perf_missing_features.clockid && evsel->core.attr.use_clockid) { + perf_missing_features.clockid = true; + pr_debug2_peo("switching off use_clockid\n"); + return true; + } else if (!perf_missing_features.cloexec && (evsel->open_flags & PERF_FLAG_FD_CLOEXEC)) { + perf_missing_features.cloexec = true; + pr_debug2_peo("switching off cloexec flag\n"); + return true; + } else if (!perf_missing_features.mmap2 && evsel->core.attr.mmap2) { + perf_missing_features.mmap2 = true; + pr_debug2_peo("switching off mmap2\n"); + return true; + } else if ((evsel->core.attr.exclude_guest || evsel->core.attr.exclude_host) && + (evsel->pmu == NULL || evsel->pmu->missing_features.exclude_guest)) { + if (evsel->pmu == NULL) { + evsel->pmu = evsel__find_pmu(evsel); + if (evsel->pmu) + evsel->pmu->missing_features.exclude_guest = true; + else { + /* we cannot find PMU, disable attrs now */ + evsel->core.attr.exclude_host = false; + evsel->core.attr.exclude_guest = false; + } + } + + if (evsel->exclude_GH) { + pr_debug2_peo("PMU has no exclude_host/guest support, bailing out\n"); + return false; + } + if (!perf_missing_features.exclude_guest) { + perf_missing_features.exclude_guest = true; + pr_debug2_peo("switching off exclude_guest, exclude_host\n"); + } + return true; + } else if (!perf_missing_features.sample_id_all) { + perf_missing_features.sample_id_all = true; + pr_debug2_peo("switching off sample_id_all\n"); + return true; + } else if (!perf_missing_features.lbr_flags && + (evsel->core.attr.branch_sample_type & + (PERF_SAMPLE_BRANCH_NO_CYCLES | + PERF_SAMPLE_BRANCH_NO_FLAGS))) { + perf_missing_features.lbr_flags = true; + pr_debug2_peo("switching off branch sample type no (cycles/flags)\n"); + return true; + } else if (!perf_missing_features.group_read && + evsel->core.attr.inherit && + (evsel->core.attr.read_format & PERF_FORMAT_GROUP) && + evsel__is_group_leader(evsel)) { + perf_missing_features.group_read = true; + pr_debug2_peo("switching off group read\n"); + return true; + } else { + return false; + } +} + +bool evsel__increase_rlimit(enum rlimit_action *set_rlimit) +{ + int old_errno; + struct rlimit l; + + if (*set_rlimit < INCREASED_MAX) { + old_errno = errno; + + if (getrlimit(RLIMIT_NOFILE, &l) == 0) { + if (*set_rlimit == NO_CHANGE) { + l.rlim_cur = l.rlim_max; + } else { + l.rlim_cur = l.rlim_max + 1000; + l.rlim_max = l.rlim_cur; + } + if (setrlimit(RLIMIT_NOFILE, &l) == 0) { + (*set_rlimit) += 1; + errno = old_errno; + return true; + } + } + errno = old_errno; + } + + return false; +} + +static int evsel__open_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, + struct perf_thread_map *threads, + int start_cpu_map_idx, int end_cpu_map_idx) +{ + int idx, thread, nthreads; + int pid = -1, err, old_errno; + enum rlimit_action set_rlimit = NO_CHANGE; + + err = __evsel__prepare_open(evsel, cpus, threads); + if (err) + return err; + + if (cpus == NULL) + cpus = empty_cpu_map; + + if (threads == NULL) + threads = empty_thread_map; + + nthreads = perf_thread_map__nr(threads); + + if (evsel->cgrp) + pid = evsel->cgrp->fd; + +fallback_missing_features: + evsel__disable_missing_features(evsel); display_attr(&evsel->core.attr); - for (cpu = start_cpu; cpu < end_cpu; cpu++) { + for (idx = start_cpu_map_idx; idx < end_cpu_map_idx; idx++) { for (thread = 0; thread < nthreads; thread++) { int fd, group_fd; +retry_open: + if (thread >= nthreads) + break; if (!evsel->cgrp && !evsel->core.system_wide) pid = perf_thread_map__pid(threads, thread); - group_fd = get_group_fd(evsel, cpu, thread); -retry_open: + group_fd = get_group_fd(evsel, idx, thread); + test_attr__ready(); - fd = perf_event_open(evsel, pid, cpus->map[cpu], - group_fd, flags); + /* Debug message used by test scripts */ + pr_debug2_peo("sys_perf_event_open: pid %d cpu %d group_fd %d flags %#lx", + pid, perf_cpu_map__cpu(cpus, idx).cpu, group_fd, evsel->open_flags); + + fd = sys_perf_event_open(&evsel->core.attr, pid, + perf_cpu_map__cpu(cpus, idx).cpu, + group_fd, evsel->open_flags); - FD(evsel, cpu, thread) = fd; + FD(evsel, idx, thread) = fd; if (fd < 0) { err = -errno; - if (ignore_missing_thread(evsel, cpus->nr, cpu, threads, thread, err)) { - /* - * We just removed 1 thread, so take a step - * back on thread index and lower the upper - * nthreads limit. - */ - nthreads--; - thread--; - - /* ... and pretend like nothing have happened. */ - err = 0; - continue; - } - pr_debug2_peo("\nsys_perf_event_open failed, error %d\n", err); goto try_fallback; } + bpf_counter__install_pe(evsel, idx, fd); + + if (unlikely(test_attr__enabled)) { + test_attr__open(&evsel->core.attr, pid, + perf_cpu_map__cpu(cpus, idx), + fd, group_fd, evsel->open_flags); + } + + /* Debug message used by test scripts */ pr_debug2_peo(" = %d\n", fd); if (evsel->bpf_fd >= 0) { @@ -1739,8 +2129,7 @@ retry_open: /* * If we succeeded but had to kill clockid, fail and - * have perf_evsel__open_strerror() print us a nice - * error. + * have evsel__open_strerror() print us a nice error. */ if (perf_missing_features.clockid || perf_missing_features.clockid_wrong) { @@ -1753,93 +2142,30 @@ retry_open: return 0; try_fallback: + if (evsel__precise_ip_fallback(evsel)) + goto retry_open; + + if (evsel__ignore_missing_thread(evsel, perf_cpu_map__nr(cpus), + idx, threads, thread, err)) { + /* We just removed 1 thread, so lower the upper nthreads limit. */ + nthreads--; + + /* ... and pretend like nothing have happened. */ + err = 0; + goto retry_open; + } /* * perf stat needs between 5 and 22 fds per CPU. When we run out * of them try to increase the limits. */ - if (err == -EMFILE && set_rlimit < INCREASED_MAX) { - struct rlimit l; - - old_errno = errno; - if (getrlimit(RLIMIT_NOFILE, &l) == 0) { - if (set_rlimit == NO_CHANGE) - l.rlim_cur = l.rlim_max; - else { - l.rlim_cur = l.rlim_max + 1000; - l.rlim_max = l.rlim_cur; - } - if (setrlimit(RLIMIT_NOFILE, &l) == 0) { - set_rlimit++; - errno = old_errno; - goto retry_open; - } - } - errno = old_errno; - } + if (err == -EMFILE && evsel__increase_rlimit(&set_rlimit)) + goto retry_open; - if (err != -EINVAL || cpu > 0 || thread > 0) + if (err != -EINVAL || idx > 0 || thread > 0) goto out_close; - /* - * Must probe features in the order they were added to the - * perf_event_attr interface. - */ - if (!perf_missing_features.aux_output && evsel->core.attr.aux_output) { - perf_missing_features.aux_output = true; - pr_debug2_peo("Kernel has no attr.aux_output support, bailing out\n"); - goto out_close; - } else if (!perf_missing_features.bpf && evsel->core.attr.bpf_event) { - perf_missing_features.bpf = true; - pr_debug2_peo("switching off bpf_event\n"); - goto fallback_missing_features; - } else if (!perf_missing_features.ksymbol && evsel->core.attr.ksymbol) { - perf_missing_features.ksymbol = true; - pr_debug2_peo("switching off ksymbol\n"); - goto fallback_missing_features; - } else if (!perf_missing_features.write_backward && evsel->core.attr.write_backward) { - perf_missing_features.write_backward = true; - pr_debug2_peo("switching off write_backward\n"); - goto out_close; - } else if (!perf_missing_features.clockid_wrong && evsel->core.attr.use_clockid) { - perf_missing_features.clockid_wrong = true; - pr_debug2_peo("switching off clockid\n"); - goto fallback_missing_features; - } else if (!perf_missing_features.clockid && evsel->core.attr.use_clockid) { - perf_missing_features.clockid = true; - pr_debug2_peo("switching off use_clockid\n"); - goto fallback_missing_features; - } else if (!perf_missing_features.cloexec && (flags & PERF_FLAG_FD_CLOEXEC)) { - perf_missing_features.cloexec = true; - pr_debug2_peo("switching off cloexec flag\n"); - goto fallback_missing_features; - } else if (!perf_missing_features.mmap2 && evsel->core.attr.mmap2) { - perf_missing_features.mmap2 = true; - pr_debug2_peo("switching off mmap2\n"); - goto fallback_missing_features; - } else if (!perf_missing_features.exclude_guest && - (evsel->core.attr.exclude_guest || evsel->core.attr.exclude_host)) { - perf_missing_features.exclude_guest = true; - pr_debug2_peo("switching off exclude_guest, exclude_host\n"); - goto fallback_missing_features; - } else if (!perf_missing_features.sample_id_all) { - perf_missing_features.sample_id_all = true; - pr_debug2_peo("switching off sample_id_all\n"); - goto retry_sample_id; - } else if (!perf_missing_features.lbr_flags && - (evsel->core.attr.branch_sample_type & - (PERF_SAMPLE_BRANCH_NO_CYCLES | - PERF_SAMPLE_BRANCH_NO_FLAGS))) { - perf_missing_features.lbr_flags = true; - pr_debug2_peo("switching off branch sample type no (cycles/flags)\n"); - goto fallback_missing_features; - } else if (!perf_missing_features.group_read && - evsel->core.attr.inherit && - (evsel->core.attr.read_format & PERF_FORMAT_GROUP) && - perf_evsel__is_group_leader(evsel)) { - perf_missing_features.group_read = true; - pr_debug2_peo("switching off group read\n"); + if (evsel__detect_missing_features(evsel)) goto fallback_missing_features; - } out_close: if (err) threads->err_thread = thread; @@ -1847,12 +2173,12 @@ out_close: old_errno = errno; do { while (--thread >= 0) { - if (FD(evsel, cpu, thread) >= 0) - close(FD(evsel, cpu, thread)); - FD(evsel, cpu, thread) = -1; + if (FD(evsel, idx, thread) >= 0) + close(FD(evsel, idx, thread)); + FD(evsel, idx, thread) = -1; } thread = nthreads; - } while (--cpu >= 0); + } while (--idx >= 0); errno = old_errno; return err; } @@ -1860,7 +2186,7 @@ out_close: int evsel__open(struct evsel *evsel, struct perf_cpu_map *cpus, struct perf_thread_map *threads) { - return evsel__open_cpu(evsel, cpus, threads, 0, cpus ? cpus->nr : 1); + return evsel__open_cpu(evsel, cpus, threads, 0, perf_cpu_map__nr(cpus)); } void evsel__close(struct evsel *evsel) @@ -1869,19 +2195,15 @@ void evsel__close(struct evsel *evsel) perf_evsel__free_id(&evsel->core); } -int perf_evsel__open_per_cpu(struct evsel *evsel, - struct perf_cpu_map *cpus, - int cpu) +int evsel__open_per_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, int cpu_map_idx) { - if (cpu == -1) - return evsel__open_cpu(evsel, cpus, NULL, 0, - cpus ? cpus->nr : 1); + if (cpu_map_idx == -1) + return evsel__open_cpu(evsel, cpus, NULL, 0, perf_cpu_map__nr(cpus)); - return evsel__open_cpu(evsel, cpus, NULL, cpu, cpu + 1); + return evsel__open_cpu(evsel, cpus, NULL, cpu_map_idx, cpu_map_idx + 1); } -int perf_evsel__open_per_thread(struct evsel *evsel, - struct perf_thread_map *threads) +int evsel__open_per_thread(struct evsel *evsel, struct perf_thread_map *threads) { return evsel__open(evsel, NULL, threads); } @@ -1976,8 +2298,63 @@ perf_event__check_size(union perf_event *event, unsigned int sample_size) return 0; } -int perf_evsel__parse_sample(struct evsel *evsel, union perf_event *event, - struct perf_sample *data) +void __weak arch_perf_parse_sample_weight(struct perf_sample *data, + const __u64 *array, + u64 type __maybe_unused) +{ + data->weight = *array; +} + +u64 evsel__bitfield_swap_branch_flags(u64 value) +{ + u64 new_val = 0; + + /* + * branch_flags + * union { + * u64 values; + * struct { + * mispred:1 //target mispredicted + * predicted:1 //target predicted + * in_tx:1 //in transaction + * abort:1 //transaction abort + * cycles:16 //cycle count to last branch + * type:4 //branch type + * reserved:40 + * } + * } + * + * Avoid bswap64() the entire branch_flag.value, + * as it has variable bit-field sizes. Instead the + * macro takes the bit-field position/size, + * swaps it based on the host endianness. + * + * tep_is_bigendian() is used here instead of + * bigendian() to avoid python test fails. + */ + if (tep_is_bigendian()) { + new_val = bitfield_swap(value, 0, 1); + new_val |= bitfield_swap(value, 1, 1); + new_val |= bitfield_swap(value, 2, 1); + new_val |= bitfield_swap(value, 3, 1); + new_val |= bitfield_swap(value, 4, 16); + new_val |= bitfield_swap(value, 20, 4); + new_val |= bitfield_swap(value, 24, 40); + } else { + new_val = bitfield_swap(value, 63, 1); + new_val |= bitfield_swap(value, 62, 1); + new_val |= bitfield_swap(value, 61, 1); + new_val |= bitfield_swap(value, 60, 1); + new_val |= bitfield_swap(value, 44, 16); + new_val |= bitfield_swap(value, 40, 4); + new_val |= bitfield_swap(value, 0, 40); + } + + return new_val; +} + +int evsel__parse_sample(struct evsel *evsel, union perf_event *event, + struct perf_sample *data) { u64 type = evsel->core.attr.sample_type; bool swapped = evsel->needs_swap; @@ -2000,6 +2377,7 @@ int perf_evsel__parse_sample(struct evsel *evsel, union perf_event *event, data->misc = event->header.misc; data->id = -1ULL; data->data_src = PERF_MEM_DATA_SRC_NONE; + data->vcpu = -1; if (event->header.type != PERF_RECORD_SAMPLE) { if (!evsel->core.attr.sample_id_all) @@ -2104,8 +2482,8 @@ int perf_evsel__parse_sample(struct evsel *evsel, union perf_event *event, if (data->read.group.nr > max_group_nr) return -EFAULT; - sz = data->read.group.nr * - sizeof(struct sample_read_value); + + sz = data->read.group.nr * sample_read_value_size(read_format); OVERFLOW_CHECK(array, sz, max_size); data->read.group.values = (struct sample_read_value *)array; @@ -2114,10 +2492,16 @@ int perf_evsel__parse_sample(struct evsel *evsel, union perf_event *event, OVERFLOW_CHECK_u64(array); data->read.one.id = *array; array++; + + if (read_format & PERF_FORMAT_LOST) { + OVERFLOW_CHECK_u64(array); + data->read.one.lost = *array; + array++; + } } } - if (evsel__has_callchain(evsel)) { + if (type & PERF_SAMPLE_CALLCHAIN) { const u64 max_callchain_nr = UINT64_MAX / sizeof(u64); OVERFLOW_CHECK_u64(array); @@ -2136,7 +2520,7 @@ int perf_evsel__parse_sample(struct evsel *evsel, union perf_event *event, /* * Undo swap of u64, then swap on individual u32s, * get the size of the raw area and undo all of the - * swap. The pevent interface handles endianity by + * swap. The pevent interface handles endianness by * itself. */ if (swapped) { @@ -2163,13 +2547,43 @@ int perf_evsel__parse_sample(struct evsel *evsel, union perf_event *event, if (type & PERF_SAMPLE_BRANCH_STACK) { const u64 max_branch_nr = UINT64_MAX / sizeof(struct branch_entry); + struct branch_entry *e; + unsigned int i; OVERFLOW_CHECK_u64(array); data->branch_stack = (struct branch_stack *)array++; if (data->branch_stack->nr > max_branch_nr) return -EFAULT; + sz = data->branch_stack->nr * sizeof(struct branch_entry); + if (evsel__has_branch_hw_idx(evsel)) { + sz += sizeof(u64); + e = &data->branch_stack->entries[0]; + } else { + data->no_hw_idx = true; + /* + * if the PERF_SAMPLE_BRANCH_HW_INDEX is not applied, + * only nr and entries[] will be output by kernel. + */ + e = (struct branch_entry *)&data->branch_stack->hw_idx; + } + + if (swapped) { + /* + * struct branch_flag does not have endian + * specific bit field definition. And bswap + * will not resolve the issue, since these + * are bit fields. + * + * evsel__bitfield_swap_branch_flags() uses a + * bitfield_swap macro to swap the bit position + * based on the host endians. + */ + for (i = 0; i < data->branch_stack->nr; i++, e++) + e->flags.value = evsel__bitfield_swap_branch_flags(e->flags.value); + } + OVERFLOW_CHECK(array, sz, max_size); array = (void *)array + sz; } @@ -2211,9 +2625,9 @@ int perf_evsel__parse_sample(struct evsel *evsel, union perf_event *event, } } - if (type & PERF_SAMPLE_WEIGHT) { + if (type & PERF_SAMPLE_WEIGHT_TYPE) { OVERFLOW_CHECK_u64(array); - data->weight = *array; + arch_perf_parse_sample_weight(data, array, type); array++; } @@ -2252,6 +2666,24 @@ int perf_evsel__parse_sample(struct evsel *evsel, union perf_event *event, array++; } + data->cgroup = 0; + if (type & PERF_SAMPLE_CGROUP) { + data->cgroup = *array; + array++; + } + + data->data_page_size = 0; + if (type & PERF_SAMPLE_DATA_PAGE_SIZE) { + data->data_page_size = *array; + array++; + } + + data->code_page_size = 0; + if (type & PERF_SAMPLE_CODE_PAGE_SIZE) { + data->code_page_size = *array; + array++; + } + if (type & PERF_SAMPLE_AUX) { OVERFLOW_CHECK_u64(array); sz = *array++; @@ -2268,9 +2700,8 @@ int perf_evsel__parse_sample(struct evsel *evsel, union perf_event *event, return 0; } -int perf_evsel__parse_sample_timestamp(struct evsel *evsel, - union perf_event *event, - u64 *timestamp) +int evsel__parse_sample_timestamp(struct evsel *evsel, union perf_event *event, + u64 *timestamp) { u64 type = evsel->core.attr.sample_type; const __u64 *array; @@ -2312,15 +2743,40 @@ int perf_evsel__parse_sample_timestamp(struct evsel *evsel, return 0; } -struct tep_format_field *perf_evsel__field(struct evsel *evsel, const char *name) +u16 evsel__id_hdr_size(struct evsel *evsel) +{ + u64 sample_type = evsel->core.attr.sample_type; + u16 size = 0; + + if (sample_type & PERF_SAMPLE_TID) + size += sizeof(u64); + + if (sample_type & PERF_SAMPLE_TIME) + size += sizeof(u64); + + if (sample_type & PERF_SAMPLE_ID) + size += sizeof(u64); + + if (sample_type & PERF_SAMPLE_STREAM_ID) + size += sizeof(u64); + + if (sample_type & PERF_SAMPLE_CPU) + size += sizeof(u64); + + if (sample_type & PERF_SAMPLE_IDENTIFIER) + size += sizeof(u64); + + return size; +} + +struct tep_format_field *evsel__field(struct evsel *evsel, const char *name) { return tep_find_field(evsel->tp_format, name); } -void *perf_evsel__rawptr(struct evsel *evsel, struct perf_sample *sample, - const char *name) +void *evsel__rawptr(struct evsel *evsel, struct perf_sample *sample, const char *name) { - struct tep_format_field *field = perf_evsel__field(evsel, name); + struct tep_format_field *field = evsel__field(evsel, name); int offset; if (!field) @@ -2331,6 +2787,8 @@ void *perf_evsel__rawptr(struct evsel *evsel, struct perf_sample *sample, if (field->flags & TEP_FIELD_IS_DYNAMIC) { offset = *(int *)(sample->raw_data + field->offset); offset &= 0xffff; + if (field->flags & TEP_FIELD_IS_RELATIVE) + offset += field->offset + field->size; } return sample->raw_data + offset; @@ -2375,10 +2833,9 @@ u64 format_field__intval(struct tep_format_field *field, struct perf_sample *sam return 0; } -u64 perf_evsel__intval(struct evsel *evsel, struct perf_sample *sample, - const char *name) +u64 evsel__intval(struct evsel *evsel, struct perf_sample *sample, const char *name) { - struct tep_format_field *field = perf_evsel__field(evsel, name); + struct tep_format_field *field = evsel__field(evsel, name); if (!field) return 0; @@ -2386,8 +2843,7 @@ u64 perf_evsel__intval(struct evsel *evsel, struct perf_sample *sample, return field ? format_field__intval(field, sample, evsel->needs_swap) : 0; } -bool perf_evsel__fallback(struct evsel *evsel, int err, - char *msg, size_t msgsize) +bool evsel__fallback(struct evsel *evsel, int err, char *msg, size_t msgsize) { int paranoid; @@ -2412,13 +2868,17 @@ bool perf_evsel__fallback(struct evsel *evsel, int err, return true; } else if (err == EACCES && !evsel->core.attr.exclude_kernel && (paranoid = perf_event_paranoid()) > 1) { - const char *name = perf_evsel__name(evsel); + const char *name = evsel__name(evsel); char *new_name; const char *sep = ":"; + /* If event has exclude user then don't exclude kernel. */ + if (evsel->core.attr.exclude_user) + return false; + /* Is there already the separator in the name. */ if (strchr(name, '/') || - strchr(name, ':')) + (strchr(name, ':') && !evsel->is_libpfm_event)) sep = ""; if (asprintf(&new_name, "%s%su", name, sep) < 0) @@ -2475,39 +2935,62 @@ static bool find_process(const char *name) return ret ? false : true; } -int perf_evsel__open_strerror(struct evsel *evsel, struct target *target, - int err, char *msg, size_t size) +static bool is_amd(const char *arch, const char *cpuid) { + return arch && !strcmp("x86", arch) && cpuid && strstarts(cpuid, "AuthenticAMD"); +} + +static bool is_amd_ibs(struct evsel *evsel) +{ + return evsel->core.attr.precise_ip + || (evsel->pmu_name && !strncmp(evsel->pmu_name, "ibs", 3)); +} + +int evsel__open_strerror(struct evsel *evsel, struct target *target, + int err, char *msg, size_t size) +{ + struct perf_env *env = evsel__env(evsel); + const char *arch = perf_env__arch(env); + const char *cpuid = perf_env__cpuid(env); char sbuf[STRERR_BUFSIZE]; - int printed = 0; + int printed = 0, enforced = 0; switch (err) { case EPERM: case EACCES: + printed += scnprintf(msg + printed, size - printed, + "Access to performance monitoring and observability operations is limited.\n"); + + if (!sysfs__read_int("fs/selinux/enforce", &enforced)) { + if (enforced) { + printed += scnprintf(msg + printed, size - printed, + "Enforced MAC policy settings (SELinux) can limit access to performance\n" + "monitoring and observability operations. Inspect system audit records for\n" + "more perf_event access control information and adjusting the policy.\n"); + } + } + if (err == EPERM) - printed = scnprintf(msg, size, - "No permission to enable %s event.\n\n", - perf_evsel__name(evsel)); + printed += scnprintf(msg, size, + "No permission to enable %s event.\n\n", evsel__name(evsel)); return scnprintf(msg + printed, size - printed, - "You may not have permission to collect %sstats.\n\n" - "Consider tweaking /proc/sys/kernel/perf_event_paranoid,\n" - "which controls use of the performance events system by\n" - "unprivileged users (without CAP_SYS_ADMIN).\n\n" - "The current value is %d:\n\n" + "Consider adjusting /proc/sys/kernel/perf_event_paranoid setting to open\n" + "access to performance monitoring and observability operations for processes\n" + "without CAP_PERFMON, CAP_SYS_PTRACE or CAP_SYS_ADMIN Linux capability.\n" + "More information can be found at 'Perf events and tool security' document:\n" + "https://www.kernel.org/doc/html/latest/admin-guide/perf-security.html\n" + "perf_event_paranoid setting is %d:\n" " -1: Allow use of (almost) all events by all users\n" " Ignore mlock limit after perf_event_mlock_kb without CAP_IPC_LOCK\n" - ">= 0: Disallow ftrace function tracepoint by users without CAP_SYS_ADMIN\n" - " Disallow raw tracepoint access by users without CAP_SYS_ADMIN\n" - ">= 1: Disallow CPU event access by users without CAP_SYS_ADMIN\n" - ">= 2: Disallow kernel profiling by users without CAP_SYS_ADMIN\n\n" - "To make this setting permanent, edit /etc/sysctl.conf too, e.g.:\n\n" - " kernel.perf_event_paranoid = -1\n" , - target->system_wide ? "system-wide " : "", - perf_event_paranoid()); + ">= 0: Disallow raw and ftrace function tracepoint access\n" + ">= 1: Disallow CPU event access\n" + ">= 2: Disallow kernel profiling\n" + "To make the adjusted perf_event_paranoid setting permanent preserve it\n" + "in /etc/sysctl.conf (e.g. kernel.perf_event_paranoid = <setting>)", + perf_event_paranoid()); case ENOENT: - return scnprintf(msg, size, "The %s event is not supported.", - perf_evsel__name(evsel)); + return scnprintf(msg, size, "The %s event is not supported.", evsel__name(evsel)); case EMFILE: return scnprintf(msg, size, "%s", "Too many events are opened.\n" @@ -2528,10 +3011,18 @@ int perf_evsel__open_strerror(struct evsel *evsel, struct target *target, "No such device - did you specify an out-of-range profile CPU?"); break; case EOPNOTSUPP: + if (evsel->core.attr.sample_type & PERF_SAMPLE_BRANCH_STACK) + return scnprintf(msg, size, + "%s: PMU Hardware or event type doesn't support branch stack sampling.", + evsel__name(evsel)); + if (evsel->core.attr.aux_output) + return scnprintf(msg, size, + "%s: PMU Hardware doesn't support 'aux_output' feature", + evsel__name(evsel)); if (evsel->core.attr.sample_period != 0) return scnprintf(msg, size, "%s: PMU Hardware doesn't support sampling/overflow-interrupts. Try 'perf stat'", - perf_evsel__name(evsel)); + evsel__name(evsel)); if (evsel->core.attr.precise_ip) return scnprintf(msg, size, "%s", "\'precise\' request may not be supported. Try removing 'p' modifier."); @@ -2548,6 +3039,10 @@ int perf_evsel__open_strerror(struct evsel *evsel, struct target *target, "We found oprofile daemon running, please stop it and try again."); break; case EINVAL: + if (evsel->core.attr.sample_type & PERF_SAMPLE_CODE_PAGE_SIZE && perf_missing_features.code_page_size) + return scnprintf(msg, size, "Asking for the code page size isn't supported by this kernel."); + if (evsel->core.attr.sample_type & PERF_SAMPLE_DATA_PAGE_SIZE && perf_missing_features.data_page_size) + return scnprintf(msg, size, "Asking for the data page size isn't supported by this kernel."); if (evsel->core.attr.write_backward && perf_missing_features.write_backward) return scnprintf(msg, size, "Reading from overwrite event is not supported by this kernel."); if (perf_missing_features.clockid) @@ -2556,7 +3051,25 @@ int perf_evsel__open_strerror(struct evsel *evsel, struct target *target, return scnprintf(msg, size, "wrong clockid (%d).", clockid); if (perf_missing_features.aux_output) return scnprintf(msg, size, "The 'aux_output' feature is not supported, update the kernel."); + if (!target__has_cpu(target)) + return scnprintf(msg, size, + "Invalid event (%s) in per-thread mode, enable system wide with '-a'.", + evsel__name(evsel)); + if (is_amd(arch, cpuid)) { + if (is_amd_ibs(evsel)) { + if (evsel->core.attr.exclude_kernel) + return scnprintf(msg, size, + "AMD IBS can't exclude kernel events. Try running at a higher privilege level."); + if (!evsel->core.system_wide) + return scnprintf(msg, size, + "AMD IBS may only be available in system-wide/per-cpu mode. Try using -a, or -C and workload affinity"); + } + } + break; + case ENODATA: + return scnprintf(msg, size, "Cannot collect data source with the load latency event alone. " + "Please add an auxiliary event in front of the load latency event."); default: break; } @@ -2564,28 +3077,27 @@ int perf_evsel__open_strerror(struct evsel *evsel, struct target *target, return scnprintf(msg, size, "The sys_perf_event_open() syscall returned with %d (%s) for event (%s).\n" "/bin/dmesg | grep -i perf may provide additional information.\n", - err, str_error_r(err, sbuf, sizeof(sbuf)), - perf_evsel__name(evsel)); + err, str_error_r(err, sbuf, sizeof(sbuf)), evsel__name(evsel)); } -struct perf_env *perf_evsel__env(struct evsel *evsel) +struct perf_env *evsel__env(struct evsel *evsel) { - if (evsel && evsel->evlist) + if (evsel && evsel->evlist && evsel->evlist->env) return evsel->evlist->env; return &perf_env; } static int store_evsel_ids(struct evsel *evsel, struct evlist *evlist) { - int cpu, thread; + int cpu_map_idx, thread; - for (cpu = 0; cpu < xyarray__max_x(evsel->core.fd); cpu++) { + for (cpu_map_idx = 0; cpu_map_idx < xyarray__max_x(evsel->core.fd); cpu_map_idx++) { for (thread = 0; thread < xyarray__max_y(evsel->core.fd); thread++) { - int fd = FD(evsel, cpu, thread); + int fd = FD(evsel, cpu_map_idx, thread); if (perf_evlist__id_add_fd(&evlist->core, &evsel->core, - cpu, thread, fd) < 0) + cpu_map_idx, thread, fd) < 0) return -1; } } @@ -2593,13 +3105,82 @@ static int store_evsel_ids(struct evsel *evsel, struct evlist *evlist) return 0; } -int perf_evsel__store_ids(struct evsel *evsel, struct evlist *evlist) +int evsel__store_ids(struct evsel *evsel, struct evlist *evlist) { struct perf_cpu_map *cpus = evsel->core.cpus; struct perf_thread_map *threads = evsel->core.threads; - if (perf_evsel__alloc_id(&evsel->core, cpus->nr, threads->nr)) + if (perf_evsel__alloc_id(&evsel->core, perf_cpu_map__nr(cpus), threads->nr)) return -ENOMEM; return store_evsel_ids(evsel, evlist); } + +void evsel__zero_per_pkg(struct evsel *evsel) +{ + struct hashmap_entry *cur; + size_t bkt; + + if (evsel->per_pkg_mask) { + hashmap__for_each_entry(evsel->per_pkg_mask, cur, bkt) + free((char *)cur->key); + + hashmap__clear(evsel->per_pkg_mask); + } +} + +bool evsel__is_hybrid(struct evsel *evsel) +{ + return evsel->pmu_name && perf_pmu__is_hybrid(evsel->pmu_name); +} + +struct evsel *evsel__leader(struct evsel *evsel) +{ + return container_of(evsel->core.leader, struct evsel, core); +} + +bool evsel__has_leader(struct evsel *evsel, struct evsel *leader) +{ + return evsel->core.leader == &leader->core; +} + +bool evsel__is_leader(struct evsel *evsel) +{ + return evsel__has_leader(evsel, evsel); +} + +void evsel__set_leader(struct evsel *evsel, struct evsel *leader) +{ + evsel->core.leader = &leader->core; +} + +int evsel__source_count(const struct evsel *evsel) +{ + struct evsel *pos; + int count = 0; + + evlist__for_each_entry(evsel->evlist, pos) { + if (pos->metric_leader == evsel) + count++; + } + return count; +} + +bool __weak arch_evsel__must_be_in_group(const struct evsel *evsel __maybe_unused) +{ + return false; +} + +/* + * Remove an event from a given group (leader). + * Some events, e.g., perf metrics Topdown events, + * must always be grouped. Ignore the events. + */ +void evsel__remove_from_group(struct evsel *evsel, struct evsel *leader) +{ + if (!arch_evsel__must_be_in_group(evsel) && evsel != leader) { + evsel__set_leader(evsel, evsel); + evsel->core.nr_members = 0; + leader->core.nr_members--; + } +} |