--- a/gcc/common/common-target.def	Fri Oct 27 22:46:09 2017 +0900
+++ b/gcc/common/common-target.def	Thu Oct 25 07:37:49 2018 +0900
@@ -1,5 +1,5 @@
 /* Target hook definitions for common hooks.
-   Copyright (C) 2011-2017 Free Software Foundation, Inc.
+   Copyright (C) 2011-2018 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by the
@@ -56,6 +56,13 @@
  void, (void),
  hook_void_void)
 
+DEFHOOK
+(option_validate_param,
+"Validate target-dependent value for @option{--param} settings, using\
+ calls to @code{set_param_value}.",
+ bool, (int, int),
+ default_option_validate_param)
+
 /* The initial value of target_flags.  */
 DEFHOOKPOD
 (default_target_flags,
@@ -80,6 +87,17 @@
  bool, (bool report, struct gcc_options *opts),
  hook_bool_bool_gcc_optionsp_false)
 
+DEFHOOK
+(get_valid_option_values,
+"The hook is used for options that have a non-trivial list of\
+ possible option values.  OPTION_CODE is option code of opt_code\
+ enum type.  PREFIX is used for bash completion and allows an implementation\
+ to return more specific completion based on the prefix.  All string values\
+ should be allocated from heap memory and consumers should release them. \
+ The result will be pruned to cases with PREFIX if not NULL.",
+ vec<const char *>, (int option_code, const char *prefix),
+ default_get_valid_option_values)
+
 /* Leave the boolean fields at the end.  */
 
 /* True if unwinding tables should be generated by default.  */