* options.h (enum Incremental_disposition): Define.

	(class General_options): Add new options: --incremental,
	--incremental_changed, --incremental_unchanged,
	--incremental_unknown.  Add incremental_disposition_ and
	implicit_incremental_ fields.
	(General_options::incremental_disposition): New function.
	(class Position_dependent_options): Add incremental_disposition
	option.
	(Position_dependent_options::copy_from_options): Set incremental
	dispositions.
	* options.cc (General_options::parse_incremental_changed): New
	function.
        (General_options::parse_incremental_unchanged): New function.
        (General_options::parse_incremental_unknown): New function.
        (General_options::General_options): Initialize new fields
	incremental_disposition_ and implicit_incremental_.
        (General_options::finalize): Check for uasge of --incremental-*
	without --incremental.

1 files changed, 30 insertions, 1 deletions

diff --git a/gold/options.cc b/gold/options.cc
index ff9bd41..35ed863 100644
--- a/gold/options.cc
+++ b/gold/options.cc
@@ -290,6 +290,30 @@ General_options::parse_defsym(const char*, const char* arg,
 }
 
 void
+General_options::parse_incremental_changed(const char*, const char*,
+                                           Command_line*)
+{
+  this->implicit_incremental_ = true;
+  this->incremental_disposition_ = INCREMENTAL_CHANGED;
+}
+
+void
+General_options::parse_incremental_unchanged(const char*, const char*,
+                                             Command_line*)
+{
+  this->implicit_incremental_ = true;
+  this->incremental_disposition_ = INCREMENTAL_UNCHANGED;
+}
+
+void
+General_options::parse_incremental_unknown(const char*, const char*,
+                                           Command_line*)
+{
+  this->implicit_incremental_ = true;
+  this->incremental_disposition_ = INCREMENTAL_CHECK;
+}
+
+void
 General_options::parse_library(const char*, const char* arg,
                                Command_line* cmdline)
 {
@@ -621,7 +645,8 @@ namespace gold
 
 General_options::General_options()
   : execstack_status_(General_options::EXECSTACK_FROM_INPUT), static_(false),
-    do_demangle_(false), plugins_()
+    do_demangle_(false), plugins_(),
+    incremental_disposition_(INCREMENTAL_CHECK), implicit_incremental_(false)
 {
 }
 
@@ -839,6 +864,10 @@ General_options::finalize()
 		 "[0.0, 1.0)"),
 	       this->hash_bucket_empty_fraction());
 
+  if (this->implicit_incremental_ && !this->incremental())
+    gold_fatal(_("Options --incremental-changed, --incremental-unchanged, "
+                 "--incremental-unknown require the use of --incremental"));
+
   // FIXME: we can/should be doing a lot more sanity checking here.
 }