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PR ld/14265

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* 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.
This commit is contained in:
Nick Clifton
2012-08-14 08:31:57 +00:00
parent 921b53228f
commit b9b2ae8bbf
16 changed files with 246 additions and 18 deletions
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24
gold/layout.cc
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@@ -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' "