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/*
* Copyright (C) 2017 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 "DebugCommand.h"
#include "Lshal.h"
#include <hidl-util/FQName.h>
namespace android {
namespace lshal {
std::string DebugCommand::getName() const {
return "debug";
}
std::string DebugCommand::getSimpleDescription() const {
return "Debug a specified HAL.";
}
Status DebugCommand::parseArgs(const Arg &arg) {
if (optind >= arg.argc) {
return USAGE;
}
// Optargs cannnot be used because the flag should not be considered set
// if it should really be contained in mOptions.
if (std::string(arg.argv[optind]) == "-E") {
mExcludesParentInstances = true;
optind++;
}
mInterfaceName = arg.argv[optind];
++optind;
for (; optind < arg.argc; ++optind) {
mOptions.push_back(arg.argv[optind]);
}
return OK;
}
Status DebugCommand::main(const Arg &arg) {
Status status = parseArgs(arg);
if (status != OK) {
return status;
}
auto pair = splitFirst(mInterfaceName, '/');
FQName fqName;
if (!FQName::parse(pair.first, &fqName) || fqName.isIdentifier() || !fqName.isFullyQualified()) {
mLshal.err() << "Invalid fully-qualified name '" << pair.first << "'\n\n";
return USAGE;
}
return mLshal.emitDebugInfo(
pair.first, pair.second.empty() ? "default" : pair.second, mOptions,
mExcludesParentInstances,
mLshal.out().buf(),
mLshal.err());
}
void DebugCommand::usage() const {
static const std::string debug =
"debug:\n"
" lshal debug [-E] <interface> [options [options [...]]] \n"
" Print debug information of a specified interface.\n"
" -E: excludes debug output if HAL is actually a subclass.\n"
" <interface>: Format is `android.hardware.foo@1.0::IFoo/default`.\n"
" If instance name is missing `default` is used.\n"
" options: space separated options to IBase::debug.\n";
mLshal.err() << debug;
}
} // namespace lshal
} // namespace android
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