PR jit/64810: driver, arm, jit: configure-time default options

gcc/ChangeLog:
	PR jit/64810
	* Makefile.in (GCC_OBJS): Add gcc-main.o.
	* gcc-main.c: New file, containing "main" taken from gcc.c.
	* gcc.c (do_self_spec): Free decoded_options.
	(class driver): Move declaration to gcc.h.
	(main): Move declaration and implementation to new file
	gcc-main.c.
	(driver_get_configure_time_options): New function.
	* gcc.h (class driver): Move this declaration here, from
	gcc.c.
	(driver_get_configure_time_options): New declaration.

gcc/jit/ChangeLog:
	PR jit/64810
	* Make-lang.in (jit_OBJS): Add jit/jit-spec.o and gcc.o.
	(LIBGCCJIT_FILENAME): Add EXTRA_GCC_OBJS.
	* jit-playback.c: Include gcc.h.
	(gcc::jit::playback::context::compile): Move mutex acquisition
	to before the call to make_fake_args.
	(append_arg_from_driver): New function.
	(gcc::jit::playback::context::make_fake_args): On the first call,
	call into driver_get_configure_time_options to get configure-time
	default options and cache them.  Add them to the args for
	toplev::main.
	* jit-spec.c: New source file.
	* docs/internals/test-hello-world.exe.log.txt: Update to reflect
	above changes.

From-SVN: r220373

1 files changed, 38 insertions, 0 deletions

diff --git a/gcc/gcc.h b/gcc/gcc.h
index 473cf6a..f10a103 100644
--- a/gcc/gcc.h
+++ b/gcc/gcc.h
@@ -23,6 +23,39 @@ along with GCC; see the file COPYING3.  If not see
 #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:
+  int main (int argc, char **argv);
+
+ 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 () const;
+  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;
+  int get_exit_code () const;
+
+ private:
+  char *explicit_link_files;
+  struct cl_decoded_option *decoded_options;
+  unsigned int decoded_options_count;
+};
+
 /* The mapping of a spec function name to the C function that
    implements it.  */
 struct spec_function
@@ -55,4 +88,9 @@ extern int lang_specific_extra_outfiles;
 
 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 */