gcc.h

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/* Header file for modules that link with gcc.cc
   Copyright (C) 1999-2026 Free Software Foundation, Inc.
 
This file is part of GCC.
 
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
 
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.
 
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */
 
#ifndef GCC_GCC_H
#define GCC_GCC_H
 
#include "version.h"
#include "diagnostic-core.h"
 
/* The top-level "main" within the driver would be ~1000 lines long.
   This class breaks it up into smaller functions and contains some
   state shared by them.  */
 
class driver
{
 public:
  driver (bool can_finalize, bool debug);
  ~driver ();
  int main (int argc, char **argv);
  void finalize ();
 
 private:
  void set_progname (const char *argv0) const;
  void expand_at_files (int *argc, char ***argv) const;
  void decode_argv (int argc, const char **argv);
  void global_initializations ();
  void build_multilib_strings () const;
  void set_up_specs () const;
  void putenv_COLLECT_GCC (const char *argv0) const;
  void maybe_putenv_COLLECT_LTO_WRAPPER () const;
  void maybe_putenv_OFFLOAD_TARGETS () const;
  void handle_unrecognized_options ();
  int maybe_print_and_exit () const;
  bool prepare_infiles ();
  void do_spec_on_infiles () const;
  void maybe_run_linker (const char *argv0) const;
  void final_actions () const;
  void detect_jobserver () const;
  int get_exit_code () const;
 
 private:
  char *explicit_link_files;
  struct cl_decoded_option *decoded_options;
  unsigned int decoded_options_count;
  option_proposer m_option_proposer;
};
 
/* The mapping of a spec function name to the C function that
   implements it.  */
struct spec_function
{
  const char *name;
  const char *(*func) (int, const char **);
};
 
/* These are exported by gcc.cc.  */
extern int do_spec (const char *);
extern void record_temp_file (const char *, int, int);
extern void set_input (const char *);
 
/* Spec files linked with gcc.cc must provide definitions for these.  */
 
/* Called before processing to change/add/remove arguments.  */
extern void lang_specific_driver (struct cl_decoded_option **,
                                  unsigned int *, int *);
 
/* Called before linking.  Returns 0 on success and -1 on failure.  */
extern int lang_specific_pre_link (void);
 
extern int n_infiles;
 
/* Number of extra output files that lang_specific_pre_link may generate.  */
extern int lang_specific_extra_outfiles;
 
/* A vector of corresponding output files is made up later.  */
 
extern const char **outfiles;
 
extern void
driver_get_configure_time_options (void (*cb)(const char *option,
                                              void *user_data),
                                   void *user_data);
 
#endif /* ! GCC_GCC_H */