1 /* Header file for modules that link with gcc.c 2 Copyright (C) 1999-2018 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 build_option_suggestions (void); 49 const char *suggest_option (const char *bad_opt); 50 void handle_unrecognized_options (); 51 int maybe_print_and_exit () const; 52 bool prepare_infiles (); 53 void do_spec_on_infiles () const; 54 void maybe_run_linker (const char *argv0) const; 55 void final_actions () const; 56 int get_exit_code () const; 57 58 private: 59 char *explicit_link_files; 60 struct cl_decoded_option *decoded_options; 61 unsigned int decoded_options_count; 62 auto_vec <char *> *m_option_suggestions; 63 }; 64 65 /* The mapping of a spec function name to the C function that 66 implements it. */ 67 struct spec_function 68 { 69 const char *name; 70 const char *(*func) (int, const char **); 71 }; 72 73 /* These are exported by gcc.c. */ 74 extern int do_spec (const char *); 75 extern void record_temp_file (const char *, int, int); 76 extern void pfatal_with_name (const char *) ATTRIBUTE_NORETURN; 77 extern void set_input (const char *); 78 79 /* Spec files linked with gcc.c must provide definitions for these. */ 80 81 /* Called before processing to change/add/remove arguments. */ 82 extern void lang_specific_driver (struct cl_decoded_option **, 83 unsigned int *, int *); 84 85 /* Called before linking. Returns 0 on success and -1 on failure. */ 86 extern int lang_specific_pre_link (void); 87 88 extern int n_infiles; 89 90 /* Number of extra output files that lang_specific_pre_link may generate. */ 91 extern int lang_specific_extra_outfiles; 92 93 /* A vector of corresponding output files is made up later. */ 94 95 extern const char **outfiles; 96 97 extern void 98 driver_get_configure_time_options (void (*cb)(const char *option, 99 void *user_data), 100 void *user_data); 101 102 #endif /* ! GCC_GCC_H */ 103