logging.cc

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#include "base/logging.hh"
 
#include <sstream>
 
#include "base/hostinfo.hh"
 
namespace gem5
{
 
namespace {
 
class ExitLogger : public Logger
{
  public:
    ExitLogger(const char *prefix) : Logger(prefix)
    {
        registerExtraLog([]() {
            return csprintf("Memory Usage: %ld KBytes\n", memUsage());
        });
    }
};
 
class FatalLogger : public ExitLogger
{
  public:
    using ExitLogger::ExitLogger;
 
  protected:
    void exit() override { ::exit(1); }
};
 
} // anonymous namespace
 
// We intentionally put all the loggers on the heap to prevent them from being
// destructed at the end of the program. This make them safe to be used inside
// destructor of other global objects. Also, we make them function static
// veriables to ensure they are initialized ondemand, so it is also safe to use
// them inside constructor of other global objects.
 
Logger&
Logger::getPanic() {
    static ExitLogger* panic_logger = new ExitLogger("panic: ");
    return *panic_logger;
}
 
Logger&
Logger::getFatal() {
    static FatalLogger* fatal_logger = new FatalLogger("fatal: ");
    return *fatal_logger;
}
 
Logger&
Logger::getWarn() {
    static Logger* warn_logger = new Logger("warn: ");
    return *warn_logger;
}
 
Logger&
Logger::getInfo() {
    static Logger* info_logger = new Logger("info: ");
    return *info_logger;
}
 
Logger&
Logger::getHack() {
    static Logger* hack_logger = new Logger("hack: ");
    return *hack_logger;
}
 
} // namespace gem5