#include "event_type.h"
+#include <inttypes.h>
#include <unistd.h>
#include <algorithm>
#include <string>
#include <android-base/file.h>
#include <android-base/logging.h>
+#include <android-base/parseint.h>
+#include <android-base/stringprintf.h>
+#include <android-base/strings.h>
#include "event_attr.h"
#include "utils.h"
-#define EVENT_TYPE_TABLE_ENTRY(name, type, config) {name, type, config},
+#define EVENT_TYPE_TABLE_ENTRY(name, type, config, description, limited_arch) \
+ {name, type, config, description, limited_arch},
static const std::vector<EventType> static_event_type_array = {
#include "event_type_table.h"
};
-static const std::vector<EventType> GetTracepointEventTypes() {
+static std::string tracepoint_events;
+
+bool SetTracepointEventsFilePath(const std::string& filepath) {
+ if (!android::base::ReadFileToString(filepath, &tracepoint_events)) {
+ PLOG(ERROR) << "Failed to read " << filepath;
+ return false;
+ }
+ return true;
+}
+
+std::string GetTracepointEvents() {
+ std::string result;
+ for (const EventType& event : GetAllEventTypes()) {
+ if (!result.empty()) {
+ result.push_back('\n');
+ }
+ result += android::base::StringPrintf("%s %" PRIu64, event.name.c_str(), event.config);
+ }
+ return result;
+}
+
+static std::vector<EventType> GetTracepointEventTypesFromString(const std::string& s) {
+ std::vector<EventType> result;
+ for (auto& line : android::base::Split(s, "\n")) {
+ std::vector<std::string> items = android::base::Split(line, " ");
+ CHECK_EQ(items.size(), 2u);
+ std::string event_name = items[0];
+ uint64_t id;
+ CHECK(android::base::ParseUint(items[1].c_str(), &id));
+ result.push_back(EventType(event_name, PERF_TYPE_TRACEPOINT, id, "", ""));
+ }
+ return result;
+}
+
+static std::vector<EventType> GetTracepointEventTypesFromTraceFs() {
std::vector<EventType> result;
const std::string tracepoint_dirname = "/sys/kernel/debug/tracing/events";
- std::vector<std::string> system_dirs;
- GetEntriesInDir(tracepoint_dirname, nullptr, &system_dirs);
- for (auto& system_name : system_dirs) {
+ for (const auto& system_name : GetSubDirs(tracepoint_dirname)) {
std::string system_path = tracepoint_dirname + "/" + system_name;
- std::vector<std::string> event_dirs;
- GetEntriesInDir(system_path, nullptr, &event_dirs);
- for (auto& event_name : event_dirs) {
+ for (const auto& event_name : GetSubDirs(system_path)) {
std::string id_path = system_path + "/" + event_name + "/id";
std::string id_content;
if (!android::base::ReadFileToString(id_path, &id_content)) {
LOG(DEBUG) << "unexpected id '" << id_content << "' in " << id_path;
continue;
}
- result.push_back(EventType(system_name + ":" + event_name, PERF_TYPE_TRACEPOINT, id));
+ result.push_back(EventType(system_name + ":" + event_name, PERF_TYPE_TRACEPOINT, id, "", ""));
}
}
+ return result;
+}
+
+static std::vector<EventType> GetTracepointEventTypes() {
+ std::vector<EventType> result;
+ if (!tracepoint_events.empty()) {
+ result = GetTracepointEventTypesFromString(tracepoint_events);
+ } else {
+ result = GetTracepointEventTypesFromTraceFs();
+ }
std::sort(result.begin(), result.end(),
[](const EventType& type1, const EventType& type2) { return type1.name < type2.name; });
return result;
if (event_type_array.empty()) {
event_type_array.insert(event_type_array.end(), static_event_type_array.begin(),
static_event_type_array.end());
- const std::vector<EventType> tracepoint_array = GetTracepointEventTypes();
+ std::vector<EventType> tracepoint_array = GetTracepointEventTypes();
event_type_array.insert(event_type_array.end(), tracepoint_array.begin(),
tracepoint_array.end());
}
const EventType* FindEventTypeByName(const std::string& name) {
const EventType* result = nullptr;
for (auto& event_type : GetAllEventTypes()) {
- if (event_type.name == name) {
+ if (android::base::EqualsIgnoreCase(event_type.name, name)) {
result = &event_type;
break;
}