goto_cc_mode.cpp

/*******************************************************************\

Module: Command line option container

Author: CM Wintersteiger, 2006

\*******************************************************************/

/// \file
/// Command line option container

#include "goto_cc_mode.h"

#include <iostream>

#ifdef _WIN32
#define EX_OK 0
#define EX_USAGE 64
#define EX_SOFTWARE 70
#else
#include <sysexits.h>
#endif

#include <util/exception_utils.h>
#include <util/help_formatter.h>
#include <util/message.h>
#include <util/parse_options.h>
#include <util/version.h>

#include "goto_cc_cmdline.h"

/// constructor
goto_cc_modet::goto_cc_modet(
  goto_cc_cmdlinet &_cmdline,
  const std::string &_base_name,
  message_handlert &_message_handler)
  : cmdline(_cmdline), base_name(_base_name), message_handler(_message_handler)
{
  register_languages();
}

/// constructor
goto_cc_modet::~goto_cc_modet()
{
}

/// display command line help
void goto_cc_modet::help()
{
  // clang-format off
  std::cout << '\n' << banner_string("goto-cc", CBMC_VERSION) << '\n'
            << align_center_with_border("Copyright (C) 2006-2018") << '\n'
            << align_center_with_border("Daniel Kroening, Michael Tautschnig,") << '\n' // NOLINT(*)
            << align_center_with_border("Christoph Wintersteiger") << '\n'
            <<
  "\n";
  // clang-format on

  help_mode();

  std::cout << help_formatter(
    "Usage:                     \tPurpose:\n"
    "\n"
    " {y--verbosity} {u#} \t verbosity level\n"
    " {y--function} {uname} \t set entry point to name\n"
    " {y--native-compiler} {ucmd} \t command to invoke as "
    "preprocessor/compiler\n"
    " {y--native-linker} {ucmd} \t command to invoke as linker\n"
    " {y--native-assembler} {ucmd} \t command to invoke as assembler "
    "(goto-as only)\n"
    " {y--export-file-local-symbols} \t "
    "name-mangle and export file-local symbols\n"
    " {y--mangle-suffix} {usuffix} \t append suffix to exported file-local "
    "symbols\n"
    " {y--print-rejected-preprocessed-source} {ufile} \t "
    "copy failing (preprocessed) source to file\n"
    "\n");
}

/// starts the compiler
/// \return error code
int goto_cc_modet::main(int argc, const char **argv)
{
  if(cmdline.parse(argc, argv))
  {
    usage_error();
    return EX_USAGE;
  }

  try
  {
    return doit();
  }

  catch(const char *e)
  {
    messaget log{message_handler};
    log.error() << e << messaget::eom;
    return EX_SOFTWARE;
  }

  catch(const std::string &e)
  {
    messaget log{message_handler};
    log.error() << e << messaget::eom;
    return EX_SOFTWARE;
  }

  catch(int)
  {
    return EX_SOFTWARE;
  }

  catch(const std::bad_alloc &)
  {
    messaget log{message_handler};
    log.error() << "Out of memory" << messaget::eom;
    return EX_SOFTWARE;
  }

  catch(const invalid_source_file_exceptiont &e)
  {
    messaget log{message_handler};
    log.error().source_location = e.get_source_location();
    log.error() << e.get_reason() << messaget::eom;
    return EX_SOFTWARE;
  }

  catch(const cprover_exception_baset &e)
  {
    messaget log{message_handler};
    log.error() << e.what() << messaget::eom;
    return EX_SOFTWARE;
  }
}

/// Prints a message informing the user about incorrect options.
void goto_cc_modet::usage_error()
{
  std::cerr << "Usage error!\n\n";
  help();
}