You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
119 lines
3.8 KiB
119 lines
3.8 KiB
/*
|
|
* Copyright 2016 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
#include <android/hidl/manager/1.0/IServiceManager.h>
|
|
#include <cutils/properties.h>
|
|
#include <hidl/ServiceManagement.h>
|
|
#include <iostream>
|
|
|
|
using namespace std;
|
|
using namespace android;
|
|
|
|
// Turns on the HAL instrumentation feature on all registered HIDL HALs.
|
|
bool SetHALInstrumentation() {
|
|
using ::android::hidl::base::V1_0::IBase;
|
|
using ::android::hidl::manager::V1_0::IServiceManager;
|
|
using ::android::hardware::hidl_string;
|
|
using ::android::hardware::Return;
|
|
|
|
sp<IServiceManager> sm = ::android::hardware::defaultServiceManager();
|
|
|
|
if (sm == nullptr) {
|
|
fprintf(stderr, "failed to get IServiceManager to poke HAL services.\n");
|
|
return false;
|
|
}
|
|
|
|
auto listRet = sm->list([&](const auto &interfaces) {
|
|
for (const string &fqInstanceName : interfaces) {
|
|
string::size_type n = fqInstanceName.find("/");
|
|
if (n == std::string::npos || fqInstanceName.size() == n + 1) continue;
|
|
|
|
hidl_string fqInterfaceName = fqInstanceName.substr(0, n);
|
|
hidl_string instanceName =
|
|
fqInstanceName.substr(n + 1, std::string::npos);
|
|
Return<sp<IBase>> interfaceRet = sm->get(fqInterfaceName, instanceName);
|
|
if (!interfaceRet.isOk()) {
|
|
fprintf(stderr, "failed to get service %s: %s\n",
|
|
fqInstanceName.c_str(), interfaceRet.description().c_str());
|
|
continue;
|
|
}
|
|
sp<IBase> interface = interfaceRet;
|
|
auto notifyRet = interface->setHALInstrumentation();
|
|
if (!notifyRet.isOk()) {
|
|
fprintf(stderr, "failed to setHALInstrumentation on service %s: %s\n",
|
|
fqInstanceName.c_str(), notifyRet.description().c_str());
|
|
}
|
|
printf("- updated the HAL instrumentation mode setting for %s\n",
|
|
fqInstanceName.c_str());
|
|
}
|
|
});
|
|
if (!listRet.isOk()) {
|
|
fprintf(stderr, "failed to list services: %s\n",
|
|
listRet.description().c_str());
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool EnableHALProfiling() {
|
|
property_set("hal.instrumentation.enable", "true");
|
|
if (!SetHALInstrumentation()) {
|
|
fprintf(stderr, "failed to set instrumentation on services.\n");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool DisableHALProfiling() {
|
|
property_set("hal.instrumentation.enable", "false");
|
|
if (!SetHALInstrumentation()) {
|
|
fprintf(stderr, "failed to set instrumentation on services.\n");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void PrintUsage() {
|
|
printf(
|
|
"Usage: \n"
|
|
"To enable profiling: <binary> enable <lib path 32> <lib path 64>"
|
|
"To disable profiling <binary> disable");
|
|
}
|
|
|
|
int main(int argc, char *argv[]) {
|
|
if (argc == 2 && !strcmp(argv[1], "disable")) {
|
|
printf("* disable profiling.\n");
|
|
property_set("hal.instrumentation.lib.path.32", "");
|
|
property_set("hal.instrumentation.lib.path.64", "");
|
|
if (!DisableHALProfiling()) {
|
|
printf("failed to disable profiling.\n");
|
|
return -1;
|
|
}
|
|
} else if (argc >= 2 && !strcmp(argv[1], "enable")) {
|
|
printf("* enable profiling.\n");
|
|
if (argc == 4) {
|
|
property_set("hal.instrumentation.lib.path.32", argv[2]);
|
|
property_set("hal.instrumentation.lib.path.64", argv[3]);
|
|
}
|
|
if (!EnableHALProfiling()) {
|
|
printf("failed to enable profiling.\n");
|
|
return -1;
|
|
}
|
|
} else {
|
|
PrintUsage();
|
|
}
|
|
return 0;
|
|
}
|