Fix internal error when using --emit-relocs with plugins.

When an .eh_frame section has deferred layout because of plugins, gold
was neglecting to mark the section as deferred. When we later processed
the corresponding relocation section, we were then ignoring it, causing
the internal error later on in the link.

gold/
	PR gold/23397
	* object.cc (Sized_relobj_file::do_layout): Mark section as deferred.
	* testsuite/Makefile.am (plugin_test_1): Add --emit-relocs option to
	existing test case.
	* testsuite/Makefile.in: Regenerate.

diff --git a/gold/ChangeLog b/gold/ChangeLog
index 0e50f05..ae0b8c9 100644 (file)
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,5 +1,13 @@
 2018-07-14  Cary Coutant  <ccoutant@gmail.com>
 
+       PR gold/23397
+       * object.cc (Sized_relobj_file::do_layout): Mark section as deferred.
+       * testsuite/Makefile.am (plugin_test_1): Add --emit-relocs option to
+       existing test case.
+       * testsuite/Makefile.in: Regenerate.
+
+2018-07-14  Cary Coutant  <ccoutant@gmail.com>
+
        PR gold/23409
        * symtab.cc (Symbol_table::define_special_symbol): Add check for
        version name on existing symbol.

diff --git a/gold/object.cc b/gold/object.cc
index 374340f..084212c 100644 (file)
--- a/gold/object.cc
+++ b/gold/object.cc
@@ -1742,9 +1742,13 @@ Sized_relobj_file<size, big_endian>::do_layout(Symbol_table* symtab,
                  out_section_offsets[i] = invalid_address;
                }
              else if (this->is_deferred_layout())
-               this->deferred_layout_.push_back(
-                   Deferred_layout(i, name, sh_type, pshdrs,
-                                   reloc_shndx[i], reloc_type[i]));
+               {
+                 out_sections[i] = reinterpret_cast<Output_section*>(2);
+                 out_section_offsets[i] = invalid_address;
+                 this->deferred_layout_.push_back(
+                     Deferred_layout(i, name, sh_type, pshdrs,
+                                     reloc_shndx[i], reloc_type[i]));
+               }
              else
                eh_frame_sections.push_back(i);
              continue;

diff --git a/gold/testsuite/Makefile.am b/gold/testsuite/Makefile.am
index e15788e..c1c5539 100644 (file)
--- a/gold/testsuite/Makefile.am
+++ b/gold/testsuite/Makefile.am
@@ -2256,7 +2256,7 @@ check_SCRIPTS += plugin_test_1.sh
 check_DATA += plugin_test_1.err
 MOSTLYCLEANFILES += plugin_test_1.err
 plugin_test_1: two_file_test_main.o two_file_test_1.o.syms two_file_test_1b.o.syms two_file_test_2.o.syms empty.o.syms gcctestdir/ld plugin_test.so
-       $(CXXLINK) -Bgcctestdir/ -Wl,--no-demangle,--plugin,"./plugin_test.so",--plugin-opt,"_Z4f13iv" two_file_test_main.o two_file_test_1.o.syms two_file_test_1b.o.syms two_file_test_2.o.syms empty.o.syms 2>plugin_test_1.err
+       $(CXXLINK) -Bgcctestdir/ -Wl,--no-demangle,--emit-relocs,--plugin,"./plugin_test.so",--plugin-opt,"_Z4f13iv" two_file_test_main.o two_file_test_1.o.syms two_file_test_1b.o.syms two_file_test_2.o.syms empty.o.syms 2>plugin_test_1.err
 plugin_test_1.err: plugin_test_1
        @touch plugin_test_1.err
 

diff --git a/gold/testsuite/Makefile.in b/gold/testsuite/Makefile.in
index 7305d32..08b5c07 100644 (file)
--- a/gold/testsuite/Makefile.in
+++ b/gold/testsuite/Makefile.in
@@ -8922,7 +8922,7 @@ uninstall-am:
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ test -d alt || mkdir -p alt
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXCOMPILE) -c -o $@ $<
 @GCC_TRUE@@NATIVE_LINKER_TRUE@@PLUGINS_TRUE@plugin_test_1: two_file_test_main.o two_file_test_1.o.syms two_file_test_1b.o.syms two_file_test_2.o.syms empty.o.syms gcctestdir/ld plugin_test.so
-@GCC_TRUE@@NATIVE_LINKER_TRUE@@PLUGINS_TRUE@   $(CXXLINK) -Bgcctestdir/ -Wl,--no-demangle,--plugin,"./plugin_test.so",--plugin-opt,"_Z4f13iv" two_file_test_main.o two_file_test_1.o.syms two_file_test_1b.o.syms two_file_test_2.o.syms empty.o.syms 2>plugin_test_1.err
+@GCC_TRUE@@NATIVE_LINKER_TRUE@@PLUGINS_TRUE@   $(CXXLINK) -Bgcctestdir/ -Wl,--no-demangle,--emit-relocs,--plugin,"./plugin_test.so",--plugin-opt,"_Z4f13iv" two_file_test_main.o two_file_test_1.o.syms two_file_test_1b.o.syms two_file_test_2.o.syms empty.o.syms 2>plugin_test_1.err
 @GCC_TRUE@@NATIVE_LINKER_TRUE@@PLUGINS_TRUE@plugin_test_1.err: plugin_test_1
 @GCC_TRUE@@NATIVE_LINKER_TRUE@@PLUGINS_TRUE@   @touch plugin_test_1.err
 @GCC_TRUE@@NATIVE_LINKER_TRUE@@PLUGINS_TRUE@plugin_test_2: two_file_test_main.o two_file_test_1.o.syms two_file_test_1b.o.syms two_file_shared_2.so gcctestdir/ld plugin_test.so