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//===-- LLDBServerUtilities.cpp ---------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "LLDBServerUtilities.h"
#include "lldb/Utility/Args.h"
#include "lldb/Utility/Log.h"
#include "lldb/Utility/StreamString.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/FileSystem.h"
using namespace lldb;
using namespace lldb_private::lldb_server;
using namespace llvm;
static std::shared_ptr<raw_ostream> GetLogStream(StringRef log_file) {
if (!log_file.empty()) {
std::error_code EC;
std::shared_ptr<raw_ostream> stream_sp = std::make_shared<raw_fd_ostream>(
log_file, EC, sys::fs::OF_Text | sys::fs::OF_Append);
if (!EC)
return stream_sp;
errs() << llvm::formatv(
"Failed to open log file `{0}`: {1}\nWill log to stderr instead.\n",
log_file, EC.message());
}
// No need to delete the stderr stream.
return std::shared_ptr<raw_ostream>(&errs(), [](raw_ostream *) {});
}
bool LLDBServerUtilities::SetupLogging(const std::string &log_file,
const StringRef &log_channels,
uint32_t log_options) {
auto log_stream_sp = GetLogStream(log_file);
SmallVector<StringRef, 32> channel_array;
log_channels.split(channel_array, ":", /*MaxSplit*/ -1, /*KeepEmpty*/ false);
for (auto channel_with_categories : channel_array) {
std::string error;
llvm::raw_string_ostream error_stream(error);
Args channel_then_categories(channel_with_categories);
std::string channel(channel_then_categories.GetArgumentAtIndex(0));
channel_then_categories.Shift(); // Shift off the channel
bool success = Log::EnableLogChannel(
log_stream_sp, log_options, channel,
channel_then_categories.GetArgumentArrayRef(), error_stream);
if (!success) {
errs() << formatv("Unable to setup logging for channel \"{0}\": {1}",
channel, error_stream.str());
return false;
}
}
return true;
}
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