gcc/gcc.h

   1 /* Header file for modules that link with gcc.c
   2    Copyright (C) 1999-2020 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef GCC_GCC_H
  21 #define GCC_GCC_H
  22
  23 #include "version.h"
  24 #include "diagnostic-core.h"
  25
  26 /* The top-level "main" within the driver would be ~1000 lines long.
  27    This class breaks it up into smaller functions and contains some
  28    state shared by them.  */
  29
  30 class driver
  31 {
  32  public:
  33   driver (bool can_finalize, bool debug);
  34   ~driver ();
  35   int main (int argc, char **argv);
  36   void finalize ();
  37
  38  private:
  39   void set_progname (const char *argv0) const;
  40   void expand_at_files (int *argc, char ***argv) const;
  41   void decode_argv (int argc, const char **argv);
  42   void global_initializations ();
  43   void build_multilib_strings () const;
  44   void set_up_specs () const;
  45   void putenv_COLLECT_GCC (const char *argv0) const;
  46   void maybe_putenv_COLLECT_LTO_WRAPPER () const;
  47   void maybe_putenv_OFFLOAD_TARGETS () const;
  48   void handle_unrecognized_options ();
  49   int maybe_print_and_exit () const;
  50   bool prepare_infiles ();
  51   void do_spec_on_infiles () const;
  52   void maybe_run_linker (const char *argv0) const;
  53   void final_actions () const;
  54   void detect_jobserver () const;
  55   int get_exit_code () const;
  56
  57  private:
  58   char *explicit_link_files;
  59   struct cl_decoded_option *decoded_options;
  60   unsigned int decoded_options_count;
  61   option_proposer m_option_proposer;
  62 };
  63
  64 /* The mapping of a spec function name to the C function that
  65    implements it.  */
  66 struct spec_function
  67 {
  68   const char *name;
  69   const char *(*func) (int, const char **);
  70 };
  71
  72 /* These are exported by gcc.c.  */
  73 extern int do_spec (const char *);
  74 extern void record_temp_file (const char *, int, int);
  75 extern void set_input (const char *);
  76
  77 /* Spec files linked with gcc.c must provide definitions for these.  */
  78
  79 /* Called before processing to change/add/remove arguments.  */
  80 extern void lang_specific_driver (struct cl_decoded_option **,
  81                                   unsigned int *, int *);
  82
  83 /* Called before linking.  Returns 0 on success and -1 on failure.  */
  84 extern int lang_specific_pre_link (void);
  85
  86 extern int n_infiles;
  87
  88 /* Number of extra output files that lang_specific_pre_link may generate.  */
  89 extern int lang_specific_extra_outfiles;
  90
  91 /* A vector of corresponding output files is made up later.  */
  92
  93 extern const char **outfiles;
  94
  95 extern void
  96 driver_get_configure_time_options (void (*cb)(const char *option,
  97                                               void *user_data),
  98                                    void *user_data);
  99
 100 #endif /* ! GCC_GCC_H */