Add R_X86_64_PC32_BND/R_X86_64_PLT32_BND suppor to gold

elfcpp/

	* x86_64.h (R_X86_64_PC32_BND): New.
	(R_X86_64_PLT32_BND): Likewise.

gold/

	* x86_64.cc (Target_x86_64<size>::Scan::get_reference_flags):
	Handle R_X86_64_PC32_BND and R_X86_64_PLT32_BND just like
	R_X86_64_PC32 and R_X86_64_PLT32, respectively.
	(Target_x86_64<size>::Scan::local): Likewise.
	(Target_x86_64<size>::Scan::global): Likewise.
	(Target_x86_64<size>::Relocate::relocate): Likewise.
	(Target_x86_64<size>::Relocatable_size_for_reloc::get_size_for_reloc):
	Likewise.
	(Target_x86_64<size>::Scan::check_non_pic(): Handle
	R_X86_64_PC32_BND.

	* testsuite/Makefile.am (check_PROGRAMS): Add
	exception_x86_64_bnd_test.
	(exception_x86_64_bnd_test_SOURCES): New macro.
	(exception_x86_64_bnd_test_DEPENDENCIES): Likewise.
	(exception_x86_64_bnd_test_LDFLAGS): Likewise.
	(exception_x86_64_bnd_test_LDADD): Likewise.
	(exception_x86_64_bnd_1.o): New rule.
	(exception_x86_64_bnd_2.o): Likewise.
	* testsuite/Makefile.in: Regenerated.

elfcpp/ChangeLog

+2013-11-17  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* x86_64.h (R_X86_64_PC32_BND): New.
+	(R_X86_64_PLT32_BND): Likewise.
+
 2013-11-15  Alan Modra  <amodra@gmail.com>
 
 	Apply mainline changes to 2.24

elfcpp/x86_64.h

@@ -92,6 +92,8 @@ enum
   R_X86_64_TLSDESC = 36,         // 2 by 64-bit TLS descriptor
   R_X86_64_IRELATIVE = 37,          // Adjust indirectly by program base
   R_X86_64_RELATIVE64 = 38,      // 64-bit adjust by program base
+  R_X86_64_PC32_BND = 39,  // PC relative 32 bit signed with BND prefix
+  R_X86_64_PLT32_BND = 40, // 32 bit PLT address with BND prefix
   // GNU vtable garbage collection extensions.
   R_X86_64_GNU_VTINHERIT = 250,
   R_X86_64_GNU_VTENTRY = 251

gold/ChangeLog

+2013-11-17  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* x86_64.cc (Target_x86_64<size>::Scan::get_reference_flags):
+	Handle R_X86_64_PC32_BND and R_X86_64_PLT32_BND just like
+	R_X86_64_PC32 and R_X86_64_PLT32, respectively.
+	(Target_x86_64<size>::Scan::local): Likewise.
+	(Target_x86_64<size>::Scan::global): Likewise.
+	(Target_x86_64<size>::Relocate::relocate): Likewise.
+	(Target_x86_64<size>::Relocatable_size_for_reloc::get_size_for_reloc):
+	Likewise.
+	(Target_x86_64<size>::Scan::check_non_pic(): Handle
+	R_X86_64_PC32_BND.
+
+	* testsuite/Makefile.am (check_PROGRAMS): Add
+	exception_x86_64_bnd_test.
+	(exception_x86_64_bnd_test_SOURCES): New macro.
+	(exception_x86_64_bnd_test_DEPENDENCIES): Likewise.
+	(exception_x86_64_bnd_test_LDFLAGS): Likewise.
+	(exception_x86_64_bnd_test_LDADD): Likewise.
+	(exception_x86_64_bnd_1.o): New rule.
+	(exception_x86_64_bnd_2.o): Likewise.
+	* testsuite/Makefile.in: Regenerated.
+
 2013-11-15  Alan Modra  <amodra@gmail.com>
 
 	Apply changes from mainline to 2.24

gold/testsuite/Makefile.am

@@ -2249,6 +2249,19 @@ incremental_comdat_test_1: incr_comdat_test_1.o incr_comdat_test_2_v1.o incr_com
 
 endif DEFAULT_TARGET_X86_64
 
+if DEFAULT_TARGET_X86_64
+check_PROGRAMS += exception_x86_64_bnd_test
+exception_x86_64_bnd_test_SOURCES = exception_test_main.cc
+exception_x86_64_bnd_test_DEPENDENCIES = exception_x86_64_bnd_1.o \
+					 exception_x86_64_bnd_2.o
+exception_x86_64_bnd_test_LDFLAGS = $(exception_test_LDFLAGS)
+exception_x86_64_bnd_test_LDADD = $(exception_x86_64_bnd_test_DEPENDENCIES)
+exception_x86_64_bnd_1.o: exception_test_1.cc
+	$(CXXCOMPILE) -c -fpic -Bgcctestdir/ -Wa,-madd-bnd-prefix -o $@ $<
+exception_x86_64_bnd_2.o: exception_test_2.cc
+	$(CXXCOMPILE) -c -Bgcctestdir/ -Wa,-madd-bnd-prefix -o $@ $<
+endif DEFAULT_TARGET_X86_64
+
 endif GCC
 endif NATIVE_LINKER
 

gold/testsuite/Makefile.in

@@ -557,7 +557,8 @@ check_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	incremental_test_6 \
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	incremental_copy_test \
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	incremental_common_test_1 \
-@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	incremental_comdat_test_1
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	incremental_comdat_test_1 \
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	exception_x86_64_bnd_test
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_71 = two_file_test_tmp_2.o \
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	two_file_test_tmp_3.o \
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	incremental_test_4.base \
@@ -893,7 +894,8 @@ libgoldtest_a_OBJECTS = $(am_libgoldtest_a_OBJECTS)
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	incremental_test_6$(EXEEXT) \
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	incremental_copy_test$(EXEEXT) \
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	incremental_common_test_1$(EXEEXT) \
-@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	incremental_comdat_test_1$(EXEEXT)
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	incremental_comdat_test_1$(EXEEXT) \
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	exception_x86_64_bnd_test$(EXEEXT)
 basic_pic_test_SOURCES = basic_pic_test.c
 basic_pic_test_OBJECTS = basic_pic_test.$(OBJEXT)
 basic_pic_test_LDADD = $(LDADD)
@@ -1022,6 +1024,11 @@ exception_static_test_LINK = $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) \
 exception_test_OBJECTS = $(am_exception_test_OBJECTS)
 exception_test_LINK = $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) \
 	$(exception_test_LDFLAGS) $(LDFLAGS) -o $@
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@am_exception_x86_64_bnd_test_OBJECTS = exception_test_main.$(OBJEXT)
+exception_x86_64_bnd_test_OBJECTS =  \
+	$(am_exception_x86_64_bnd_test_OBJECTS)
+exception_x86_64_bnd_test_LINK = $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) \
+	$(exception_x86_64_bnd_test_LDFLAGS) $(LDFLAGS) -o $@
 @GCC_TRUE@@NATIVE_LINKER_TRUE@am_exclude_libs_test_OBJECTS =  \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	exclude_libs_test.$(OBJEXT)
 exclude_libs_test_OBJECTS = $(am_exclude_libs_test_OBJECTS)
@@ -1781,6 +1788,7 @@ SOURCES = $(libgoldtest_a_SOURCES) basic_pic_test.c basic_pie_test.c \
 	$(exception_shared_1_test_SOURCES) \
 	$(exception_shared_2_test_SOURCES) \
 	$(exception_static_test_SOURCES) $(exception_test_SOURCES) \
+	$(exception_x86_64_bnd_test_SOURCES) \
 	$(exclude_libs_test_SOURCES) \
 	flagstest_compress_debug_sections.c flagstest_o_specialfile.c \
 	flagstest_o_specialfile_and_compress_debug_sections.c \
@@ -2598,6 +2606,12 @@ LDADD = libgoldtest.a ../libgold.a ../../libiberty/libiberty.a $(LIBINTL) \
 @GCC_TRUE@@IFUNC_TRUE@@NATIVE_LINKER_TRUE@ifuncvar_DEPENDENCIES = gcctestdir/ld ifuncvar.so
 @GCC_TRUE@@IFUNC_TRUE@@NATIVE_LINKER_TRUE@ifuncvar_LDFLAGS = -Bgcctestdir/ -Wl,-R,.
 @GCC_TRUE@@IFUNC_TRUE@@NATIVE_LINKER_TRUE@ifuncvar_LDADD = ifuncvar.so
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@exception_x86_64_bnd_test_SOURCES = exception_test_main.cc
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@exception_x86_64_bnd_test_DEPENDENCIES = exception_x86_64_bnd_1.o \
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@					 exception_x86_64_bnd_2.o
+
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@exception_x86_64_bnd_test_LDFLAGS = $(exception_test_LDFLAGS)
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@exception_x86_64_bnd_test_LDADD = $(exception_x86_64_bnd_test_DEPENDENCIES)
 @DEFAULT_TARGET_I386_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@SPLIT_DEFSYMS = --defsym __morestack=0x100 --defsym __morestack_non_split=0x200
 @DEFAULT_TARGET_X86_64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@SPLIT_DEFSYMS = --defsym __morestack=0x100 --defsym __morestack_non_split=0x200
 all: $(BUILT_SOURCES)
@@ -2726,6 +2740,9 @@ exception_static_test$(EXEEXT): $(exception_static_test_OBJECTS) $(exception_sta
 exception_test$(EXEEXT): $(exception_test_OBJECTS) $(exception_test_DEPENDENCIES) 
 	@rm -f exception_test$(EXEEXT)
 	$(exception_test_LINK) $(exception_test_OBJECTS) $(exception_test_LDADD) $(LIBS)
+exception_x86_64_bnd_test$(EXEEXT): $(exception_x86_64_bnd_test_OBJECTS) $(exception_x86_64_bnd_test_DEPENDENCIES) 
+	@rm -f exception_x86_64_bnd_test$(EXEEXT)
+	$(exception_x86_64_bnd_test_LINK) $(exception_x86_64_bnd_test_OBJECTS) $(exception_x86_64_bnd_test_LDADD) $(LIBS)
 exclude_libs_test$(EXEEXT): $(exclude_libs_test_OBJECTS) $(exclude_libs_test_DEPENDENCIES) 
 	@rm -f exclude_libs_test$(EXEEXT)
 	$(exclude_libs_test_LINK) $(exclude_libs_test_OBJECTS) $(exclude_libs_test_LDADD) $(LIBS)
@@ -4239,6 +4256,8 @@ incremental_common_test_1.log: incremental_common_test_1$(EXEEXT)
 	@p='incremental_common_test_1$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
 incremental_comdat_test_1.log: incremental_comdat_test_1$(EXEEXT)
 	@p='incremental_comdat_test_1$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+exception_x86_64_bnd_test.log: exception_x86_64_bnd_test$(EXEEXT)
+	@p='exception_x86_64_bnd_test$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
 .test.log:
 	@p='$<'; $(am__check_pre) $(TEST_LOG_COMPILE) "$$tst" $(am__check_post)
 @am__EXEEXT_TRUE@.test$(EXEEXT).log:
@@ -5392,6 +5411,10 @@ uninstall-am:
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	@sleep 1
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	cp -f incr_comdat_test_2_v3.o incr_comdat_test_1_tmp.o
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	$(CXXLINK) -Wl,--incremental-update -Bgcctestdir/ incr_comdat_test_1.o incr_comdat_test_1_tmp.o
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@exception_x86_64_bnd_1.o: exception_test_1.cc
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	$(CXXCOMPILE) -c -fpic -Bgcctestdir/ -Wa,-madd-bnd-prefix -o $@ $<
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@exception_x86_64_bnd_2.o: exception_test_2.cc
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@	$(CXXCOMPILE) -c -Bgcctestdir/ -Wa,-madd-bnd-prefix -o $@ $<
 @NATIVE_OR_CROSS_LINKER_TRUE@script_test_10.o: script_test_10.s
 @NATIVE_OR_CROSS_LINKER_TRUE@	$(TEST_AS) -o $@ $<
 @NATIVE_OR_CROSS_LINKER_TRUE@script_test_10: $(srcdir)/script_test_10.t script_test_10.o gcctestdir/ld

gold/x86_64.cc

@@ -2113,12 +2113,14 @@ Target_x86_64<size>::Scan::get_reference_flags(unsigned int r_type)
 
     case elfcpp::R_X86_64_PC64:
     case elfcpp::R_X86_64_PC32:
+    case elfcpp::R_X86_64_PC32_BND:
     case elfcpp::R_X86_64_PC16:
     case elfcpp::R_X86_64_PC8:
     case elfcpp::R_X86_64_GOTOFF64:
       return Symbol::RELATIVE_REF;
 
     case elfcpp::R_X86_64_PLT32:
+    case elfcpp::R_X86_64_PLT32_BND:
     case elfcpp::R_X86_64_PLTOFF64:
       return Symbol::FUNCTION_CALL | Symbol::RELATIVE_REF;
 
@@ -2200,6 +2202,7 @@ Target_x86_64<size>::Scan::check_non_pic(Relobj* object, unsigned int r_type,
 
       // glibc supports these reloc types, but they can overflow.
     case elfcpp::R_X86_64_PC32:
+    case elfcpp::R_X86_64_PC32_BND:
       // A PC relative reference is OK against a local symbol or if
       // the symbol is defined locally.
       if (gsym == NULL
@@ -2219,12 +2222,28 @@ Target_x86_64<size>::Scan::check_non_pic(Relobj* object, unsigned int r_type,
 	object->error(_("requires dynamic R_X86_64_32 reloc which may "
 			"overflow at runtime; recompile with -fPIC"));
       else
-	object->error(_("requires dynamic %s reloc against '%s' which may "
-			"overflow at runtime; recompile with -fPIC"),
-		      (r_type == elfcpp::R_X86_64_32
-		       ? "R_X86_64_32"
-		       : "R_X86_64_PC32"),
-		      gsym->name());
+	{
+	  const char *r_name;
+	  switch (r_type)
+	    {
+	    case elfcpp::R_X86_64_32:
+	      r_name = "R_X86_64_32";
+	      break;
+	    case elfcpp::R_X86_64_PC32:
+	      r_name = "R_X86_64_PC32";
+	      break;
+	    case elfcpp::R_X86_64_PC32_BND:
+	      r_name = "R_X86_64_PC32_BND";
+	      break;
+	    default:
+	      gold_unreachable();
+	      break;
+	    }
+	  object->error(_("requires dynamic %s reloc against '%s' "
+			  "which may overflow at runtime; recompile "
+			  "with -fPIC"),
+			r_name, gsym->name());
+	}
       this->issued_non_pic_error_ = true;
       return;
 
@@ -2368,11 +2387,13 @@ Target_x86_64<size>::Scan::local(Symbol_table* symtab,
 
     case elfcpp::R_X86_64_PC64:
     case elfcpp::R_X86_64_PC32:
+    case elfcpp::R_X86_64_PC32_BND:
     case elfcpp::R_X86_64_PC16:
     case elfcpp::R_X86_64_PC8:
       break;
 
     case elfcpp::R_X86_64_PLT32:
+    case elfcpp::R_X86_64_PLT32_BND:
       // Since we know this is a local symbol, we can handle this as a
       // PC32 reloc.
       break;
@@ -2765,6 +2786,7 @@ Target_x86_64<size>::Scan::global(Symbol_table* symtab,
 
     case elfcpp::R_X86_64_PC64:
     case elfcpp::R_X86_64_PC32:
+    case elfcpp::R_X86_64_PC32_BND:
     case elfcpp::R_X86_64_PC16:
     case elfcpp::R_X86_64_PC8:
       {
@@ -2869,6 +2891,7 @@ Target_x86_64<size>::Scan::global(Symbol_table* symtab,
       break;
 
     case elfcpp::R_X86_64_PLT32:
+    case elfcpp::R_X86_64_PLT32_BND:
       // If the symbol is fully resolved, this is just a PC32 reloc.
       // Otherwise we need a PLT entry.
       if (gsym->final_value_is_known())
@@ -3217,6 +3240,8 @@ Target_x86_64<size>::Relocate::relocate(
   if (this->skip_call_tls_get_addr_)
     {
       if ((r_type != elfcpp::R_X86_64_PLT32
+	   && r_type != elfcpp::R_X86_64_PLT32_BND
+	   && r_type != elfcpp::R_X86_64_PC32_BND
 	   && r_type != elfcpp::R_X86_64_PC32)
 	  || gsym == NULL
 	  || strcmp(gsym->name(), "__tls_get_addr") != 0)
@@ -3320,6 +3345,7 @@ Target_x86_64<size>::Relocate::relocate(
       break;
 
     case elfcpp::R_X86_64_PC32:
+    case elfcpp::R_X86_64_PC32_BND:
       Relocate_functions<size, false>::pcrela32(view, object, psymval, addend,
 						address);
       break;
@@ -3343,6 +3369,7 @@ Target_x86_64<size>::Relocate::relocate(
       break;
 
     case elfcpp::R_X86_64_PLT32:
+    case elfcpp::R_X86_64_PLT32_BND:
       gold_assert(gsym == NULL
 		  || gsym->has_plt_offset()
 		  || gsym->final_value_is_known()
@@ -4151,7 +4178,9 @@ Target_x86_64<size>::Relocatable_size_for_reloc::get_size_for_reloc(
     case elfcpp::R_X86_64_32:
     case elfcpp::R_X86_64_32S:
     case elfcpp::R_X86_64_PC32:
+    case elfcpp::R_X86_64_PC32_BND:
     case elfcpp::R_X86_64_PLT32:
+    case elfcpp::R_X86_64_PLT32_BND:
     case elfcpp::R_X86_64_GOTPC32:
     case elfcpp::R_X86_64_GOT32:
       return 4;