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-rw-r--r--ANDROID_3.4.5/tools/perf/util/parse-events.c1062
1 files changed, 1062 insertions, 0 deletions
diff --git a/ANDROID_3.4.5/tools/perf/util/parse-events.c b/ANDROID_3.4.5/tools/perf/util/parse-events.c
new file mode 100644
index 00000000..5b3a0ef4
--- /dev/null
+++ b/ANDROID_3.4.5/tools/perf/util/parse-events.c
@@ -0,0 +1,1062 @@
+#include "../../../include/linux/hw_breakpoint.h"
+#include "util.h"
+#include "../perf.h"
+#include "evlist.h"
+#include "evsel.h"
+#include "parse-options.h"
+#include "parse-events.h"
+#include "exec_cmd.h"
+#include "string.h"
+#include "symbol.h"
+#include "cache.h"
+#include "header.h"
+#include "debugfs.h"
+#include "parse-events-flex.h"
+#include "pmu.h"
+
+#define MAX_NAME_LEN 100
+
+struct event_symbol {
+ u8 type;
+ u64 config;
+ const char *symbol;
+ const char *alias;
+};
+
+int parse_events_parse(struct list_head *list, struct list_head *list_tmp,
+ int *idx);
+
+#define CHW(x) .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_##x
+#define CSW(x) .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_##x
+
+static struct event_symbol event_symbols[] = {
+ { CHW(CPU_CYCLES), "cpu-cycles", "cycles" },
+ { CHW(STALLED_CYCLES_FRONTEND), "stalled-cycles-frontend", "idle-cycles-frontend" },
+ { CHW(STALLED_CYCLES_BACKEND), "stalled-cycles-backend", "idle-cycles-backend" },
+ { CHW(INSTRUCTIONS), "instructions", "" },
+ { CHW(CACHE_REFERENCES), "cache-references", "" },
+ { CHW(CACHE_MISSES), "cache-misses", "" },
+ { CHW(BRANCH_INSTRUCTIONS), "branch-instructions", "branches" },
+ { CHW(BRANCH_MISSES), "branch-misses", "" },
+ { CHW(BUS_CYCLES), "bus-cycles", "" },
+ { CHW(REF_CPU_CYCLES), "ref-cycles", "" },
+
+ { CSW(CPU_CLOCK), "cpu-clock", "" },
+ { CSW(TASK_CLOCK), "task-clock", "" },
+ { CSW(PAGE_FAULTS), "page-faults", "faults" },
+ { CSW(PAGE_FAULTS_MIN), "minor-faults", "" },
+ { CSW(PAGE_FAULTS_MAJ), "major-faults", "" },
+ { CSW(CONTEXT_SWITCHES), "context-switches", "cs" },
+ { CSW(CPU_MIGRATIONS), "cpu-migrations", "migrations" },
+ { CSW(ALIGNMENT_FAULTS), "alignment-faults", "" },
+ { CSW(EMULATION_FAULTS), "emulation-faults", "" },
+};
+
+#define __PERF_EVENT_FIELD(config, name) \
+ ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT)
+
+#define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW)
+#define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG)
+#define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE)
+#define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT)
+
+static const char *hw_event_names[PERF_COUNT_HW_MAX] = {
+ "cycles",
+ "instructions",
+ "cache-references",
+ "cache-misses",
+ "branches",
+ "branch-misses",
+ "bus-cycles",
+ "stalled-cycles-frontend",
+ "stalled-cycles-backend",
+ "ref-cycles",
+};
+
+static const char *sw_event_names[PERF_COUNT_SW_MAX] = {
+ "cpu-clock",
+ "task-clock",
+ "page-faults",
+ "context-switches",
+ "CPU-migrations",
+ "minor-faults",
+ "major-faults",
+ "alignment-faults",
+ "emulation-faults",
+};
+
+#define MAX_ALIASES 8
+
+static const char *hw_cache[PERF_COUNT_HW_CACHE_MAX][MAX_ALIASES] = {
+ { "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", },
+};
+
+static const char *hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][MAX_ALIASES] = {
+ { "load", "loads", "read", },
+ { "store", "stores", "write", },
+ { "prefetch", "prefetches", "speculative-read", "speculative-load", },
+};
+
+static const char *hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
+ [MAX_ALIASES] = {
+ { "refs", "Reference", "ops", "access", },
+ { "misses", "miss", },
+};
+
+#define C(x) PERF_COUNT_HW_CACHE_##x
+#define CACHE_READ (1 << C(OP_READ))
+#define CACHE_WRITE (1 << C(OP_WRITE))
+#define CACHE_PREFETCH (1 << C(OP_PREFETCH))
+#define COP(x) (1 << x)
+
+/*
+ * cache operartion stat
+ * L1I : Read and prefetch only
+ * ITLB and BPU : Read-only
+ */
+static unsigned long 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),
+ [C(DTLB)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
+ [C(ITLB)] = (CACHE_READ),
+ [C(BPU)] = (CACHE_READ),
+ [C(NODE)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
+};
+
+#define for_each_subsystem(sys_dir, sys_dirent, sys_next) \
+ while (!readdir_r(sys_dir, &sys_dirent, &sys_next) && sys_next) \
+ if (sys_dirent.d_type == DT_DIR && \
+ (strcmp(sys_dirent.d_name, ".")) && \
+ (strcmp(sys_dirent.d_name, "..")))
+
+static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir)
+{
+ char evt_path[MAXPATHLEN];
+ int fd;
+
+ snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", tracing_events_path,
+ sys_dir->d_name, evt_dir->d_name);
+ fd = open(evt_path, O_RDONLY);
+ if (fd < 0)
+ return -EINVAL;
+ close(fd);
+
+ return 0;
+}
+
+#define for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) \
+ while (!readdir_r(evt_dir, &evt_dirent, &evt_next) && evt_next) \
+ if (evt_dirent.d_type == DT_DIR && \
+ (strcmp(evt_dirent.d_name, ".")) && \
+ (strcmp(evt_dirent.d_name, "..")) && \
+ (!tp_event_has_id(&sys_dirent, &evt_dirent)))
+
+#define MAX_EVENT_LENGTH 512
+
+
+struct tracepoint_path *tracepoint_id_to_path(u64 config)
+{
+ struct tracepoint_path *path = NULL;
+ DIR *sys_dir, *evt_dir;
+ struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
+ char id_buf[24];
+ int fd;
+ u64 id;
+ char evt_path[MAXPATHLEN];
+ char dir_path[MAXPATHLEN];
+
+ if (debugfs_valid_mountpoint(tracing_events_path))
+ return NULL;
+
+ sys_dir = opendir(tracing_events_path);
+ if (!sys_dir)
+ return NULL;
+
+ for_each_subsystem(sys_dir, sys_dirent, sys_next) {
+
+ snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
+ sys_dirent.d_name);
+ evt_dir = opendir(dir_path);
+ if (!evt_dir)
+ continue;
+
+ for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
+
+ snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path,
+ evt_dirent.d_name);
+ fd = open(evt_path, O_RDONLY);
+ if (fd < 0)
+ continue;
+ if (read(fd, id_buf, sizeof(id_buf)) < 0) {
+ close(fd);
+ continue;
+ }
+ close(fd);
+ id = atoll(id_buf);
+ if (id == config) {
+ closedir(evt_dir);
+ closedir(sys_dir);
+ path = zalloc(sizeof(*path));
+ path->system = malloc(MAX_EVENT_LENGTH);
+ if (!path->system) {
+ free(path);
+ return NULL;
+ }
+ path->name = malloc(MAX_EVENT_LENGTH);
+ if (!path->name) {
+ free(path->system);
+ free(path);
+ return NULL;
+ }
+ strncpy(path->system, sys_dirent.d_name,
+ MAX_EVENT_LENGTH);
+ strncpy(path->name, evt_dirent.d_name,
+ MAX_EVENT_LENGTH);
+ return path;
+ }
+ }
+ closedir(evt_dir);
+ }
+
+ closedir(sys_dir);
+ return NULL;
+}
+
+#define TP_PATH_LEN (MAX_EVENT_LENGTH * 2 + 1)
+static const char *tracepoint_id_to_name(u64 config)
+{
+ static char buf[TP_PATH_LEN];
+ struct tracepoint_path *path;
+
+ path = tracepoint_id_to_path(config);
+ if (path) {
+ snprintf(buf, TP_PATH_LEN, "%s:%s", path->system, path->name);
+ free(path->name);
+ free(path->system);
+ free(path);
+ } else
+ snprintf(buf, TP_PATH_LEN, "%s:%s", "unknown", "unknown");
+
+ return buf;
+}
+
+static int is_cache_op_valid(u8 cache_type, u8 cache_op)
+{
+ if (hw_cache_stat[cache_type] & COP(cache_op))
+ return 1; /* valid */
+ else
+ return 0; /* invalid */
+}
+
+static char *event_cache_name(u8 cache_type, u8 cache_op, u8 cache_result)
+{
+ static char name[50];
+
+ if (cache_result) {
+ sprintf(name, "%s-%s-%s", hw_cache[cache_type][0],
+ hw_cache_op[cache_op][0],
+ hw_cache_result[cache_result][0]);
+ } else {
+ sprintf(name, "%s-%s", hw_cache[cache_type][0],
+ hw_cache_op[cache_op][1]);
+ }
+
+ return name;
+}
+
+const char *event_type(int type)
+{
+ switch (type) {
+ case PERF_TYPE_HARDWARE:
+ return "hardware";
+
+ case PERF_TYPE_SOFTWARE:
+ return "software";
+
+ case PERF_TYPE_TRACEPOINT:
+ return "tracepoint";
+
+ case PERF_TYPE_HW_CACHE:
+ return "hardware-cache";
+
+ default:
+ break;
+ }
+
+ return "unknown";
+}
+
+const char *event_name(struct perf_evsel *evsel)
+{
+ u64 config = evsel->attr.config;
+ int type = evsel->attr.type;
+
+ if (evsel->name)
+ return evsel->name;
+
+ return __event_name(type, config);
+}
+
+const char *__event_name(int type, u64 config)
+{
+ static char buf[32];
+
+ if (type == PERF_TYPE_RAW) {
+ sprintf(buf, "raw 0x%" PRIx64, config);
+ return buf;
+ }
+
+ switch (type) {
+ case PERF_TYPE_HARDWARE:
+ if (config < PERF_COUNT_HW_MAX && hw_event_names[config])
+ return hw_event_names[config];
+ return "unknown-hardware";
+
+ case PERF_TYPE_HW_CACHE: {
+ u8 cache_type, cache_op, cache_result;
+
+ cache_type = (config >> 0) & 0xff;
+ if (cache_type > PERF_COUNT_HW_CACHE_MAX)
+ return "unknown-ext-hardware-cache-type";
+
+ cache_op = (config >> 8) & 0xff;
+ if (cache_op > PERF_COUNT_HW_CACHE_OP_MAX)
+ return "unknown-ext-hardware-cache-op";
+
+ cache_result = (config >> 16) & 0xff;
+ if (cache_result > PERF_COUNT_HW_CACHE_RESULT_MAX)
+ return "unknown-ext-hardware-cache-result";
+
+ if (!is_cache_op_valid(cache_type, cache_op))
+ return "invalid-cache";
+
+ return event_cache_name(cache_type, cache_op, cache_result);
+ }
+
+ case PERF_TYPE_SOFTWARE:
+ if (config < PERF_COUNT_SW_MAX && sw_event_names[config])
+ return sw_event_names[config];
+ return "unknown-software";
+
+ case PERF_TYPE_TRACEPOINT:
+ return tracepoint_id_to_name(config);
+
+ default:
+ break;
+ }
+
+ return "unknown";
+}
+
+static int add_event(struct list_head *list, int *idx,
+ struct perf_event_attr *attr, char *name)
+{
+ struct perf_evsel *evsel;
+
+ event_attr_init(attr);
+
+ evsel = perf_evsel__new(attr, (*idx)++);
+ if (!evsel)
+ return -ENOMEM;
+
+ list_add_tail(&evsel->node, list);
+
+ evsel->name = strdup(name);
+ return 0;
+}
+
+static int parse_aliases(char *str, const char *names[][MAX_ALIASES], int size)
+{
+ int i, j;
+ int n, longest = -1;
+
+ for (i = 0; i < size; i++) {
+ for (j = 0; j < MAX_ALIASES && names[i][j]; j++) {
+ n = strlen(names[i][j]);
+ if (n > longest && !strncasecmp(str, names[i][j], n))
+ longest = n;
+ }
+ if (longest > 0)
+ return i;
+ }
+
+ return -1;
+}
+
+int parse_events_add_cache(struct list_head *list, int *idx,
+ char *type, char *op_result1, char *op_result2)
+{
+ struct perf_event_attr attr;
+ char name[MAX_NAME_LEN];
+ int cache_type = -1, cache_op = -1, cache_result = -1;
+ char *op_result[2] = { op_result1, op_result2 };
+ int i, n;
+
+ /*
+ * No fallback - if we cannot get a clear cache type
+ * then bail out:
+ */
+ cache_type = parse_aliases(type, hw_cache,
+ PERF_COUNT_HW_CACHE_MAX);
+ if (cache_type == -1)
+ return -EINVAL;
+
+ n = snprintf(name, MAX_NAME_LEN, "%s", type);
+
+ for (i = 0; (i < 2) && (op_result[i]); i++) {
+ char *str = op_result[i];
+
+ snprintf(name + n, MAX_NAME_LEN - n, "-%s\n", str);
+
+ if (cache_op == -1) {
+ cache_op = parse_aliases(str, hw_cache_op,
+ PERF_COUNT_HW_CACHE_OP_MAX);
+ if (cache_op >= 0) {
+ if (!is_cache_op_valid(cache_type, cache_op))
+ return -EINVAL;
+ continue;
+ }
+ }
+
+ if (cache_result == -1) {
+ cache_result = parse_aliases(str, hw_cache_result,
+ PERF_COUNT_HW_CACHE_RESULT_MAX);
+ if (cache_result >= 0)
+ continue;
+ }
+ }
+
+ /*
+ * Fall back to reads:
+ */
+ if (cache_op == -1)
+ cache_op = PERF_COUNT_HW_CACHE_OP_READ;
+
+ /*
+ * Fall back to accesses:
+ */
+ if (cache_result == -1)
+ cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS;
+
+ memset(&attr, 0, sizeof(attr));
+ attr.config = cache_type | (cache_op << 8) | (cache_result << 16);
+ attr.type = PERF_TYPE_HW_CACHE;
+ return add_event(list, idx, &attr, name);
+}
+
+static int add_tracepoint(struct list_head *list, int *idx,
+ char *sys_name, char *evt_name)
+{
+ struct perf_event_attr attr;
+ char name[MAX_NAME_LEN];
+ char evt_path[MAXPATHLEN];
+ char id_buf[4];
+ u64 id;
+ int fd;
+
+ snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", tracing_events_path,
+ sys_name, evt_name);
+
+ fd = open(evt_path, O_RDONLY);
+ if (fd < 0)
+ return -1;
+
+ if (read(fd, id_buf, sizeof(id_buf)) < 0) {
+ close(fd);
+ return -1;
+ }
+
+ close(fd);
+ id = atoll(id_buf);
+
+ memset(&attr, 0, sizeof(attr));
+ attr.config = id;
+ attr.type = PERF_TYPE_TRACEPOINT;
+ attr.sample_type |= PERF_SAMPLE_RAW;
+ attr.sample_type |= PERF_SAMPLE_TIME;
+ attr.sample_type |= PERF_SAMPLE_CPU;
+ attr.sample_period = 1;
+
+ snprintf(name, MAX_NAME_LEN, "%s:%s", sys_name, evt_name);
+ return add_event(list, idx, &attr, name);
+}
+
+static int add_tracepoint_multi(struct list_head *list, int *idx,
+ char *sys_name, char *evt_name)
+{
+ char evt_path[MAXPATHLEN];
+ struct dirent *evt_ent;
+ DIR *evt_dir;
+ int ret = 0;
+
+ snprintf(evt_path, MAXPATHLEN, "%s/%s", tracing_events_path, sys_name);
+ evt_dir = opendir(evt_path);
+ if (!evt_dir) {
+ perror("Can't open event dir");
+ return -1;
+ }
+
+ while (!ret && (evt_ent = readdir(evt_dir))) {
+ if (!strcmp(evt_ent->d_name, ".")
+ || !strcmp(evt_ent->d_name, "..")
+ || !strcmp(evt_ent->d_name, "enable")
+ || !strcmp(evt_ent->d_name, "filter"))
+ continue;
+
+ if (!strglobmatch(evt_ent->d_name, evt_name))
+ continue;
+
+ ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name);
+ }
+
+ return ret;
+}
+
+int parse_events_add_tracepoint(struct list_head *list, int *idx,
+ char *sys, char *event)
+{
+ int ret;
+
+ ret = debugfs_valid_mountpoint(tracing_events_path);
+ if (ret)
+ return ret;
+
+ return strpbrk(event, "*?") ?
+ add_tracepoint_multi(list, idx, sys, event) :
+ add_tracepoint(list, idx, sys, event);
+}
+
+static int
+parse_breakpoint_type(const char *type, struct perf_event_attr *attr)
+{
+ int i;
+
+ for (i = 0; i < 3; i++) {
+ if (!type || !type[i])
+ break;
+
+ switch (type[i]) {
+ case 'r':
+ attr->bp_type |= HW_BREAKPOINT_R;
+ break;
+ case 'w':
+ attr->bp_type |= HW_BREAKPOINT_W;
+ break;
+ case 'x':
+ attr->bp_type |= HW_BREAKPOINT_X;
+ break;
+ default:
+ return -EINVAL;
+ }
+ }
+
+ if (!attr->bp_type) /* Default */
+ attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
+
+ return 0;
+}
+
+int parse_events_add_breakpoint(struct list_head *list, int *idx,
+ void *ptr, char *type)
+{
+ struct perf_event_attr attr;
+ char name[MAX_NAME_LEN];
+
+ memset(&attr, 0, sizeof(attr));
+ attr.bp_addr = (unsigned long) ptr;
+
+ if (parse_breakpoint_type(type, &attr))
+ return -EINVAL;
+
+ /*
+ * We should find a nice way to override the access length
+ * Provide some defaults for now
+ */
+ if (attr.bp_type == HW_BREAKPOINT_X)
+ attr.bp_len = sizeof(long);
+ else
+ attr.bp_len = HW_BREAKPOINT_LEN_4;
+
+ attr.type = PERF_TYPE_BREAKPOINT;
+
+ snprintf(name, MAX_NAME_LEN, "mem:%p:%s", ptr, type ? type : "rw");
+ return add_event(list, idx, &attr, name);
+}
+
+static int config_term(struct perf_event_attr *attr,
+ struct parse_events__term *term)
+{
+ switch (term->type) {
+ case PARSE_EVENTS__TERM_TYPE_CONFIG:
+ attr->config = term->val.num;
+ break;
+ case PARSE_EVENTS__TERM_TYPE_CONFIG1:
+ attr->config1 = term->val.num;
+ break;
+ case PARSE_EVENTS__TERM_TYPE_CONFIG2:
+ attr->config2 = term->val.num;
+ break;
+ case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
+ attr->sample_period = term->val.num;
+ break;
+ case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
+ /*
+ * TODO uncomment when the field is available
+ * attr->branch_sample_type = term->val.num;
+ */
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int config_attr(struct perf_event_attr *attr,
+ struct list_head *head, int fail)
+{
+ struct parse_events__term *term;
+
+ list_for_each_entry(term, head, list)
+ if (config_term(attr, term) && fail)
+ return -EINVAL;
+
+ return 0;
+}
+
+int parse_events_add_numeric(struct list_head *list, int *idx,
+ unsigned long type, unsigned long config,
+ struct list_head *head_config)
+{
+ struct perf_event_attr attr;
+
+ memset(&attr, 0, sizeof(attr));
+ attr.type = type;
+ attr.config = config;
+
+ if (head_config &&
+ config_attr(&attr, head_config, 1))
+ return -EINVAL;
+
+ return add_event(list, idx, &attr,
+ (char *) __event_name(type, config));
+}
+
+int parse_events_add_pmu(struct list_head *list, int *idx,
+ char *name, struct list_head *head_config)
+{
+ struct perf_event_attr attr;
+ struct perf_pmu *pmu;
+
+ pmu = perf_pmu__find(name);
+ if (!pmu)
+ return -EINVAL;
+
+ memset(&attr, 0, sizeof(attr));
+
+ /*
+ * Configure hardcoded terms first, no need to check
+ * return value when called with fail == 0 ;)
+ */
+ config_attr(&attr, head_config, 0);
+
+ if (perf_pmu__config(pmu, &attr, head_config))
+ return -EINVAL;
+
+ return add_event(list, idx, &attr, (char *) "pmu");
+}
+
+void parse_events_update_lists(struct list_head *list_event,
+ struct list_head *list_all)
+{
+ /*
+ * Called for single event definition. Update the
+ * 'all event' list, and reinit the 'signle event'
+ * list, for next event definition.
+ */
+ list_splice_tail(list_event, list_all);
+ INIT_LIST_HEAD(list_event);
+}
+
+int parse_events_modifier(struct list_head *list, char *str)
+{
+ struct perf_evsel *evsel;
+ int exclude = 0, exclude_GH = 0;
+ int eu = 0, ek = 0, eh = 0, eH = 0, eG = 0, precise = 0;
+
+ if (str == NULL)
+ return 0;
+
+ while (*str) {
+ if (*str == 'u') {
+ if (!exclude)
+ exclude = eu = ek = eh = 1;
+ eu = 0;
+ } else if (*str == 'k') {
+ if (!exclude)
+ exclude = eu = ek = eh = 1;
+ ek = 0;
+ } else if (*str == 'h') {
+ if (!exclude)
+ exclude = eu = ek = eh = 1;
+ eh = 0;
+ } else if (*str == 'G') {
+ if (!exclude_GH)
+ exclude_GH = eG = eH = 1;
+ eG = 0;
+ } else if (*str == 'H') {
+ if (!exclude_GH)
+ exclude_GH = eG = eH = 1;
+ eH = 0;
+ } else if (*str == 'p') {
+ precise++;
+ } else
+ break;
+
+ ++str;
+ }
+
+ /*
+ * precise ip:
+ *
+ * 0 - SAMPLE_IP can have arbitrary skid
+ * 1 - SAMPLE_IP must have constant skid
+ * 2 - SAMPLE_IP requested to have 0 skid
+ * 3 - SAMPLE_IP must have 0 skid
+ *
+ * See also PERF_RECORD_MISC_EXACT_IP
+ */
+ if (precise > 3)
+ return -EINVAL;
+
+ list_for_each_entry(evsel, list, node) {
+ evsel->attr.exclude_user = eu;
+ evsel->attr.exclude_kernel = ek;
+ evsel->attr.exclude_hv = eh;
+ evsel->attr.precise_ip = precise;
+ evsel->attr.exclude_host = eH;
+ evsel->attr.exclude_guest = eG;
+ }
+
+ return 0;
+}
+
+int parse_events(struct perf_evlist *evlist, const char *str, int unset __used)
+{
+ LIST_HEAD(list);
+ LIST_HEAD(list_tmp);
+ YY_BUFFER_STATE buffer;
+ int ret, idx = evlist->nr_entries;
+
+ buffer = parse_events__scan_string(str);
+
+ ret = parse_events_parse(&list, &list_tmp, &idx);
+
+ parse_events__flush_buffer(buffer);
+ parse_events__delete_buffer(buffer);
+
+ if (!ret) {
+ int entries = idx - evlist->nr_entries;
+ perf_evlist__splice_list_tail(evlist, &list, entries);
+ return 0;
+ }
+
+ /*
+ * There are 2 users - builtin-record and builtin-test objects.
+ * Both call perf_evlist__delete in case of error, so we dont
+ * need to bother.
+ */
+ fprintf(stderr, "invalid or unsupported event: '%s'\n", str);
+ fprintf(stderr, "Run 'perf list' for a list of valid events\n");
+ return ret;
+}
+
+int parse_events_option(const struct option *opt, const char *str,
+ int unset __used)
+{
+ struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
+ return parse_events(evlist, str, unset);
+}
+
+int parse_filter(const struct option *opt, const char *str,
+ int unset __used)
+{
+ struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
+ struct perf_evsel *last = NULL;
+
+ if (evlist->nr_entries > 0)
+ last = list_entry(evlist->entries.prev, struct perf_evsel, node);
+
+ if (last == NULL || last->attr.type != PERF_TYPE_TRACEPOINT) {
+ fprintf(stderr,
+ "-F option should follow a -e tracepoint option\n");
+ return -1;
+ }
+
+ last->filter = strdup(str);
+ if (last->filter == NULL) {
+ fprintf(stderr, "not enough memory to hold filter string\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static const char * const event_type_descriptors[] = {
+ "Hardware event",
+ "Software event",
+ "Tracepoint event",
+ "Hardware cache event",
+ "Raw hardware event descriptor",
+ "Hardware breakpoint",
+};
+
+/*
+ * Print the events from <debugfs_mount_point>/tracing/events
+ */
+
+void print_tracepoint_events(const char *subsys_glob, const char *event_glob)
+{
+ DIR *sys_dir, *evt_dir;
+ struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
+ char evt_path[MAXPATHLEN];
+ char dir_path[MAXPATHLEN];
+
+ if (debugfs_valid_mountpoint(tracing_events_path))
+ return;
+
+ sys_dir = opendir(tracing_events_path);
+ if (!sys_dir)
+ return;
+
+ for_each_subsystem(sys_dir, sys_dirent, sys_next) {
+ if (subsys_glob != NULL &&
+ !strglobmatch(sys_dirent.d_name, subsys_glob))
+ continue;
+
+ snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
+ sys_dirent.d_name);
+ evt_dir = opendir(dir_path);
+ if (!evt_dir)
+ continue;
+
+ for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
+ if (event_glob != NULL &&
+ !strglobmatch(evt_dirent.d_name, event_glob))
+ continue;
+
+ snprintf(evt_path, MAXPATHLEN, "%s:%s",
+ sys_dirent.d_name, evt_dirent.d_name);
+ printf(" %-50s [%s]\n", evt_path,
+ event_type_descriptors[PERF_TYPE_TRACEPOINT]);
+ }
+ closedir(evt_dir);
+ }
+ closedir(sys_dir);
+}
+
+/*
+ * Check whether event is in <debugfs_mount_point>/tracing/events
+ */
+
+int is_valid_tracepoint(const char *event_string)
+{
+ DIR *sys_dir, *evt_dir;
+ struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
+ char evt_path[MAXPATHLEN];
+ char dir_path[MAXPATHLEN];
+
+ if (debugfs_valid_mountpoint(tracing_events_path))
+ return 0;
+
+ sys_dir = opendir(tracing_events_path);
+ if (!sys_dir)
+ return 0;
+
+ for_each_subsystem(sys_dir, sys_dirent, sys_next) {
+
+ snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
+ sys_dirent.d_name);
+ evt_dir = opendir(dir_path);
+ if (!evt_dir)
+ continue;
+
+ for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
+ snprintf(evt_path, MAXPATHLEN, "%s:%s",
+ sys_dirent.d_name, evt_dirent.d_name);
+ if (!strcmp(evt_path, event_string)) {
+ closedir(evt_dir);
+ closedir(sys_dir);
+ return 1;
+ }
+ }
+ closedir(evt_dir);
+ }
+ closedir(sys_dir);
+ return 0;
+}
+
+void print_events_type(u8 type)
+{
+ struct event_symbol *syms = event_symbols;
+ unsigned int i;
+ char name[64];
+
+ for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
+ if (type != syms->type)
+ continue;
+
+ if (strlen(syms->alias))
+ snprintf(name, sizeof(name), "%s OR %s",
+ syms->symbol, syms->alias);
+ else
+ snprintf(name, sizeof(name), "%s", syms->symbol);
+
+ printf(" %-50s [%s]\n", name,
+ event_type_descriptors[type]);
+ }
+}
+
+int print_hwcache_events(const char *event_glob)
+{
+ unsigned int type, op, i, printed = 0;
+
+ for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
+ for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
+ /* skip invalid cache type */
+ if (!is_cache_op_valid(type, op))
+ continue;
+
+ for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
+ char *name = event_cache_name(type, op, i);
+
+ if (event_glob != NULL && !strglobmatch(name, event_glob))
+ continue;
+
+ printf(" %-50s [%s]\n", name,
+ event_type_descriptors[PERF_TYPE_HW_CACHE]);
+ ++printed;
+ }
+ }
+ }
+
+ return printed;
+}
+
+/*
+ * Print the help text for the event symbols:
+ */
+void print_events(const char *event_glob)
+{
+ unsigned int i, type, prev_type = -1, printed = 0, ntypes_printed = 0;
+ struct event_symbol *syms = event_symbols;
+ char name[MAX_NAME_LEN];
+
+ printf("\n");
+ printf("List of pre-defined events (to be used in -e):\n");
+
+ for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
+ type = syms->type;
+
+ if (type != prev_type && printed) {
+ printf("\n");
+ printed = 0;
+ ntypes_printed++;
+ }
+
+ if (event_glob != NULL &&
+ !(strglobmatch(syms->symbol, event_glob) ||
+ (syms->alias && strglobmatch(syms->alias, event_glob))))
+ continue;
+
+ if (strlen(syms->alias))
+ snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
+ else
+ strncpy(name, syms->symbol, MAX_NAME_LEN);
+ printf(" %-50s [%s]\n", name,
+ event_type_descriptors[type]);
+
+ prev_type = type;
+ ++printed;
+ }
+
+ if (ntypes_printed) {
+ printed = 0;
+ printf("\n");
+ }
+ print_hwcache_events(event_glob);
+
+ if (event_glob != NULL)
+ return;
+
+ printf("\n");
+ printf(" %-50s [%s]\n",
+ "rNNN",
+ event_type_descriptors[PERF_TYPE_RAW]);
+ printf(" %-50s [%s]\n",
+ "cpu/t1=v1[,t2=v2,t3 ...]/modifier",
+ event_type_descriptors[PERF_TYPE_RAW]);
+ printf(" (see 'perf list --help' on how to encode it)\n");
+ printf("\n");
+
+ printf(" %-50s [%s]\n",
+ "mem:<addr>[:access]",
+ event_type_descriptors[PERF_TYPE_BREAKPOINT]);
+ printf("\n");
+
+ print_tracepoint_events(NULL, NULL);
+}
+
+int parse_events__is_hardcoded_term(struct parse_events__term *term)
+{
+ return term->type <= PARSE_EVENTS__TERM_TYPE_HARDCODED_MAX;
+}
+
+int parse_events__new_term(struct parse_events__term **_term, int type,
+ char *config, char *str, long num)
+{
+ struct parse_events__term *term;
+
+ term = zalloc(sizeof(*term));
+ if (!term)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&term->list);
+ term->type = type;
+ term->config = config;
+
+ switch (type) {
+ case PARSE_EVENTS__TERM_TYPE_CONFIG:
+ case PARSE_EVENTS__TERM_TYPE_CONFIG1:
+ case PARSE_EVENTS__TERM_TYPE_CONFIG2:
+ case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
+ case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
+ case PARSE_EVENTS__TERM_TYPE_NUM:
+ term->val.num = num;
+ break;
+ case PARSE_EVENTS__TERM_TYPE_STR:
+ term->val.str = str;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ *_term = term;
+ return 0;
+}
+
+void parse_events__free_terms(struct list_head *terms)
+{
+ struct parse_events__term *term, *h;
+
+ list_for_each_entry_safe(term, h, terms, list)
+ free(term);
+
+ free(terms);
+}
generated by cgit (git 2.34.1) at 2024-12-22 16:08:51 +0000