From 779bdadbea9a62e5a2203651703e15edd321b9d6 Mon Sep 17 00:00:00 2001 From: Sriraman Tallam Date: Wed, 7 Mar 2018 12:15:49 -0800 Subject: New option -z,keep-text-section prefix. This option does not merge certain text sections with prefixes .text.hot, .text.unlikely, .text.startup and .text.exit. * layout.cc (Layout::default_section_order): Check for text section prefixes. (Layout::text_section_name_mapping): New static member. (Layout::text_section_name_mapping_count): New static member. (Layout::match_section_name): New static function. (Layout::output_section_name): Check for text section prefixes. * layout.h (Output_section_order::ORDER_TEXT_HOT): New enum value. (Output_section_order::ORDER_TEXT_STARTUP): New enum value. (Output_section_order::ORDER_TEXT_EXIT): New enum value. (Output_section_order::ORDER_TEXT_UNLIKELY): New enum value. (Layout::text_section_name_mapping): New static member. (Layout::text_section_name_mapping_count): New static member. (Layout::match_section_name): New static function. * options.h (keep_text_section_prefix): New -z option. * testsuite/Makefile.am (keep_text_section_prefix): New test. * testsuite/Makefile.in: Regenerate. * testsuite/keep_text_section_prefix.cc: New test source. * testsuite/keep_text_section_prefix.sh: New test script. --- gold/testsuite/Makefile.am | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'gold/testsuite/Makefile.am') diff --git a/gold/testsuite/Makefile.am b/gold/testsuite/Makefile.am index bb486ed..a732b53 100644 --- a/gold/testsuite/Makefile.am +++ b/gold/testsuite/Makefile.am @@ -354,6 +354,18 @@ text_unlikely_segment: text_unlikely_segment.o gcctestdir/ld text_unlikely_segment_readelf.stdout: text_unlikely_segment $(TEST_READELF) -Wl $< >$@ +check_SCRIPTS += keep_text_section_prefix.sh +check_DATA += keep_text_section_prefix_readelf.stdout keep_text_section_prefix_nm.stdout +MOSTLYCLEANFILES += keep_text_section_prefix +keep_text_section_prefix.o: keep_text_section_prefix.cc + $(CXXCOMPILE) -O0 -c -ffunction-sections -g -o $@ $< +keep_text_section_prefix: keep_text_section_prefix.o gcctestdir/ld + $(CXXLINK) -Bgcctestdir/ -Wl,-z,keep-text-section-prefix keep_text_section_prefix.o +keep_text_section_prefix_readelf.stdout: keep_text_section_prefix + $(TEST_READELF) -Wl $< >$@ +keep_text_section_prefix_nm.stdout: keep_text_section_prefix + $(TEST_NM) -n $< >$@ + check_PROGRAMS += icf_virtual_function_folding_test MOSTLYCLEANFILES += icf_virtual_function_folding_test icf_virtual_function_folding_test.map icf_virtual_function_folding_test.o: icf_virtual_function_folding_test.cc -- cgit v1.1