* gold.cc (queue_initial_tasks): Pass incremental base filename

	to Output_file::open_base_file; don't print error message.
	* incremental-dump.cc (main): Adjust call to
	Output_file::open_for_modification.
	* incremental-dump.cc (main): Likewise.
	* incremental.cc (Incremental_inputs::report_command_line):
	Ignore --incremental-base option when comparing command lines.
	Ignore parameter when given as separate argument.
	* options.h (class General_options): Add --incremental-base.
	* output.cc (Output_file::Output_file):
	(Output_file::open_base_file): Add base_name and writable parameters;
	read base file into new file; print error message here.
	(Output_file::map_no_anonymous): Add writable parameter; adjust all
	callers.
	* output.h (Output_file::open_for_modification): Rename to...
	(Output_file::open_base_file): ...this; add base_name and
	writable parameters; adjust all callers.
	(Output_file::map_no_anonymous): Add writable parameter; adjust all
	callers.
	* testsuite/Makefile.am (incremental_test_4): Test
	--incremental-base.
	* testsuite/Makefile.in: Regenerate.

1 files changed, 5 insertions, 0 deletions

diff --git a/gold/options.h b/gold/options.h
index f98bb27..b3b51dc 100644
--- a/gold/options.h
+++ b/gold/options.h
@@ -787,6 +787,11 @@ class General_options
   DEFINE_special(incremental_update, options::TWO_DASHES, '\0',
 		 N_("Do an incremental link; exit if not possible"), NULL);
 
+  DEFINE_string(incremental_base, options::TWO_DASHES, '\0', NULL,
+                N_("Set base file for incremental linking"
+                   " (default is output file)"),
+                N_("FILE"));
+
   DEFINE_special(incremental_changed, options::TWO_DASHES, '\0',
                  N_("Assume files changed"), NULL);