Use custom proto instead of debug string for perfetto traces
The strongly typed protos have two advantages:
* They have a more compact encoding.
* They can more easiliy be classified as privacy safe.
Tested: recorded perfetto trace with config
```
buffers {
size_kb: 100024
fill_policy: RING_BUFFER
}
data_sources {
config {
name: "track_event"
track_event_config {
disabled_categories:"*"
enabled_categories: "servicemanager"
}
}
}
```
Bug: 348584514
Change-Id: Ia21ffacdfa172bdde578cca00836fe243e25ed81
diff --git a/cmds/servicemanager/ServiceManager.cpp b/cmds/servicemanager/ServiceManager.cpp
index 0f251d2..2b06c35 100644
--- a/cmds/servicemanager/ServiceManager.cpp
+++ b/cmds/servicemanager/ServiceManager.cpp
@@ -29,6 +29,7 @@
#include <thread>
#if !defined(VENDORSERVICEMANAGER) && !defined(__ANDROID_RECOVERY__)
+#include "perfetto/public/protos/trace/android/android_track_event.pzc.h"
#include "perfetto/public/te_category_macros.h"
#include "perfetto/public/te_macros.h"
#endif // !defined(VENDORSERVICEMANAGER) && !defined(__ANDROID_RECOVERY__)
@@ -57,6 +58,12 @@
#define SM_PERFETTO_TRACE_FUNC(...) \
PERFETTO_TE_SCOPED(servicemanager, PERFETTO_TE_SLICE_BEGIN(__func__) __VA_OPT__(, ) __VA_ARGS__)
+constexpr uint32_t kProtoServiceName =
+ perfetto_protos_AndroidTrackEvent_binder_service_name_field_number;
+constexpr uint32_t kProtoInterfaceName =
+ perfetto_protos_AndroidTrackEvent_binder_interface_name_field_number;
+constexpr uint32_t kProtoApexName = perfetto_protos_AndroidTrackEvent_apex_name_field_number;
+
#endif // !(defined(VENDORSERVICEMANAGER) || defined(__ANDROID_RECOVERY__))
bool is_multiuser_uid_isolated(uid_t uid) {
@@ -384,7 +391,8 @@
}
Status ServiceManager::getService(const std::string& name, os::Service* outService) {
- SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+ SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+ PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
*outService = tryGetService(name, true);
// returns ok regardless of result for legacy reasons
@@ -392,7 +400,8 @@
}
Status ServiceManager::checkService(const std::string& name, os::Service* outService) {
- SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+ SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+ PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
*outService = tryGetService(name, false);
// returns ok regardless of result for legacy reasons
@@ -417,7 +426,8 @@
}
sp<IBinder> ServiceManager::tryGetBinder(const std::string& name, bool startIfNotFound) {
- SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+ SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+ PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
auto ctx = mAccess->getCallingContext();
@@ -457,7 +467,8 @@
}
bool isValidServiceName(const std::string& name) {
- SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+ SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+ PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
if (name.size() == 0) return false;
if (name.size() > 127) return false;
@@ -474,7 +485,8 @@
}
Status ServiceManager::addService(const std::string& name, const sp<IBinder>& binder, bool allowIsolated, int32_t dumpPriority) {
- SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+ SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+ PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
auto ctx = mAccess->getCallingContext();
@@ -597,7 +609,8 @@
Status ServiceManager::registerForNotifications(
const std::string& name, const sp<IServiceCallback>& callback) {
- SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+ SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+ PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
auto ctx = mAccess->getCallingContext();
@@ -648,7 +661,8 @@
}
Status ServiceManager::unregisterForNotifications(
const std::string& name, const sp<IServiceCallback>& callback) {
- SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+ SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+ PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
auto ctx = mAccess->getCallingContext();
@@ -674,7 +688,8 @@
}
Status ServiceManager::isDeclared(const std::string& name, bool* outReturn) {
- SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+ SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+ PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
auto ctx = mAccess->getCallingContext();
@@ -692,7 +707,8 @@
}
binder::Status ServiceManager::getDeclaredInstances(const std::string& interface, std::vector<std::string>* outReturn) {
- SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("interface", interface.c_str()));
+ SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+ PERFETTO_TE_PROTO_FIELD_CSTR(kProtoInterfaceName, interface.c_str())));
auto ctx = mAccess->getCallingContext();
@@ -720,7 +736,8 @@
Status ServiceManager::updatableViaApex(const std::string& name,
std::optional<std::string>* outReturn) {
- SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+ SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+ PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
auto ctx = mAccess->getCallingContext();
@@ -739,7 +756,8 @@
Status ServiceManager::getUpdatableNames([[maybe_unused]] const std::string& apexName,
std::vector<std::string>* outReturn) {
- SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("apexName", apexName.c_str()));
+ SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+ PERFETTO_TE_PROTO_FIELD_CSTR(kProtoApexName, apexName.c_str())));
auto ctx = mAccess->getCallingContext();
@@ -765,7 +783,8 @@
Status ServiceManager::getConnectionInfo(const std::string& name,
std::optional<ConnectionInfo>* outReturn) {
- SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+ SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+ PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
auto ctx = mAccess->getCallingContext();
@@ -850,7 +869,8 @@
Status ServiceManager::registerClientCallback(const std::string& name, const sp<IBinder>& service,
const sp<IClientCallback>& cb) {
- SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+ SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+ PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
if (cb == nullptr) {
return Status::fromExceptionCode(Status::EX_NULL_POINTER, "Callback null.");
@@ -1012,7 +1032,8 @@
}
Status ServiceManager::tryUnregisterService(const std::string& name, const sp<IBinder>& binder) {
- SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+ SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+ PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
if (binder == nullptr) {
return Status::fromExceptionCode(Status::EX_NULL_POINTER, "Null service.");