PR ld/14265

	* script-sections.cc (Sections_element::output_section_name): Add
	keep return parameter.
	(Output_section_element::match_name): Add keep return parameter.
	Return the value of the keep_ member.
	* script-sections.h (class Output_section): Update
	output_section_name prototype.
	* layout.cc (Layout::keep_input_section): New public member
	function.
	(Layout::choose_output_section): Pass keep parameter to
	output_section_name.
	* layout.h (class Layout): Add keep_input_section.
	* object.cc (Sized_relobj_file::do_layout): Check for kept input
	sections.
	* testsuite/Makefile.am: Add a test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/pr14265.c: Source file for the test.
	* testsuite/pr14265.t: Linker script for the test.
	* testsuite/pr14265.sh: Shell script for the test.

	* ld-gc/gc.exp: Add a new test.
	* ld-gc/pr14265.c: Source file for the new test.
	* ld-gc/pr14265.t: Linker script for the new test.
	* ld-gc/pr14265.d: Expected symbol dump.

1 files changed, 23 insertions, 1 deletions

diff --git a/gold/layout.cc b/gold/layout.cc
index 006afef..1e31cce 100644
--- a/gold/layout.cc
+++ b/gold/layout.cc
@@ -805,6 +805,26 @@ Layout::get_output_section(const char* name, Stringpool::Key name_key,
     }
 }
 
+// Returns TRUE iff NAME (an input section from RELOBJ) will
+// be mapped to an output section that should be KEPT.
+
+bool
+Layout::keep_input_section(const Relobj* relobj, const char* name)
+{
+  if (! this->script_options_->saw_sections_clause())
+    return false;
+
+  Script_sections* ss = this->script_options_->script_sections();
+  const char* file_name = relobj == NULL ? NULL : relobj->name().c_str();
+  Output_section** output_section_slot;
+  Script_sections::Section_type script_section_type;
+  bool keep;
+
+  name = ss->output_section_name(file_name, name, &output_section_slot,
+				 &script_section_type, &keep);
+  return name != NULL && keep;
+}
+
 // Pick the output section to use for section NAME, in input file
 // RELOBJ, with type TYPE and flags FLAGS.  RELOBJ may be NULL for a
 // linker created section.  IS_INPUT_SECTION is true if we are
@@ -845,8 +865,10 @@ Layout::choose_output_section(const Relobj* relobj, const char* name,
       Output_section** output_section_slot;
       Script_sections::Section_type script_section_type;
       const char* orig_name = name;
+      bool keep;
       name = ss->output_section_name(file_name, name, &output_section_slot,
-				     &script_section_type);
+				     &script_section_type, &keep);
+
       if (name == NULL)
 	{
 	  gold_debug(DEBUG_SCRIPT, _("Unable to create output section '%s' "