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// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <algorithm>
#include <ranges>
#if defined(_WIN32)
#include <client/windows/handler/exception_handler.h>
#elif defined(__linux__)
#include <client/linux/handler/exception_handler.h>
#else
#error Minidump creation not supported on this platform
#endif
#include "common/fs/fs_paths.h"
#include "common/fs/path_util.h"
#include "yuzu/breakpad.h"
namespace Breakpad {
static void PruneDumpDirectory(const std::filesystem::path& dump_path) {
// Code in this function should be exception-safe.
struct Entry {
std::filesystem::path path;
std::filesystem::file_time_type last_write_time;
};
std::vector<Entry> existing_dumps;
// Get existing entries.
std::error_code ec;
std::filesystem::directory_iterator dir(dump_path, ec);
for (auto& entry : dir) {
if (entry.is_regular_file()) {
existing_dumps.push_back(Entry{
.path = entry.path(),
.last_write_time = entry.last_write_time(ec),
});
}
}
// Sort descending by creation date.
std::ranges::stable_sort(existing_dumps, [](const auto& a, const auto& b) {
return a.last_write_time > b.last_write_time;
});
// Delete older dumps.
for (size_t i = 5; i < existing_dumps.size(); i++) {
std::filesystem::remove(existing_dumps[i].path, ec);
}
}
#if defined(__linux__)
[[noreturn]] bool DumpCallback(const google_breakpad::MinidumpDescriptor& descriptor, void* context,
bool succeeded) {
// Prevent time- and space-consuming core dumps from being generated, as we have
// already generated a minidump and a core file will not be useful anyway.
_exit(1);
}
#endif
void InstallCrashHandler() {
// Write crash dumps to profile directory.
const auto dump_path = GetYuzuPath(Common::FS::YuzuPath::CrashDumpsDir);
PruneDumpDirectory(dump_path);
#if defined(_WIN32)
// TODO: If we switch to MinGW builds for Windows, this needs to be wrapped in a C API.
static google_breakpad::ExceptionHandler eh{dump_path, nullptr, nullptr, nullptr,
google_breakpad::ExceptionHandler::HANDLER_ALL};
#elif defined(__linux__)
static google_breakpad::MinidumpDescriptor descriptor{dump_path};
static google_breakpad::ExceptionHandler eh{descriptor, nullptr, DumpCallback,
nullptr, true, -1};
#endif
}
} // namespace Breakpad
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