* layout.cc (Layout::layout): If we see an input section with a

	name that needs sorting, set the must_sort flag for the output
	section.
	(Layout::make_output_section): If the name of the output section
	indicates that it might	require sorting, set the may_sort flag.
	* output.h (Output_section::may_sort_attached_input_sections): New
	function.
	(Output_section::set_may_sort_attached_input_sections): New
	function.
	(Output_section::must_sort_attached_input_sections): New
	function.
	(Output_section::set_must_sort_attached_input_sections): New
	function.
	(class Output_section): Declare Input_section_sort_entry.  Define
	Input_section_sort_compare.  Declare
	sort_attached_input_sections.  Add new fields:
	may_sort_attached_input_sections_,
	must_sort_attached_input_sections_,
	attached_input_sections_are_sorted_.
	* output.cc (Output_section::Output_section): Initialize new
	fields.
	(Output_section::add_input_section): Add an entry to
	input_sections_ if may_sort or must_sort are true.
	(Output_section::set_final_data_size): Call
	sort_attached_input_sections if necessary.
	(Output_section::Input_section_sort_entry): Define new class.
	(Output_section::Input_section_sort_compare::operator()): New
	function.
	(Output_section::sort_attached_input_sections): New function.
	* configure.ac: Check whether the compiler supports constructor
	priorities.  Define a CONSTRUCTOR_PRIORITY automake conditional.
	* testsuite/initpri1.c: New file.
	* testsuite/Makefile.am (check_PROGRAMS): Add initpri1 if
	CONSTRUCTOR_PRIORITY.
	(initpri1_SOURCES, initpri1_DEPENDENCIES): New variables.
	(initpri1_LDFLAGS): New variable.
	* configure, Makefile.in, testsuite/Makefile.in: Rebuild.

3 files changed, 146 insertions, 22 deletions

diff --git a/gold/testsuite/Makefile.am b/gold/testsuite/Makefile.am
index 0016f71..58ed906 100644
--- a/gold/testsuite/Makefile.am
+++ b/gold/testsuite/Makefile.am
@@ -417,6 +417,16 @@ endif FN_PTRS_IN_SO_WITHOUT_PIC
 endif TLS
 
 
+if CONSTRUCTOR_PRIORITY
+
+check_PROGRAMS += initpri1
+initpri1_SOURCES = initpri1.c
+initpri1_DEPENDENCIES = gcctestdir/ld
+initpri1_LDFLAGS = -Bgcctestdir/
+
+endif
+
+
 # Test --detect-odr-violations
 check_SCRIPTS += debug_msg.sh
 
diff --git a/gold/testsuite/Makefile.in b/gold/testsuite/Makefile.in
index bc4f73a..0e68b9a 100644
--- a/gold/testsuite/Makefile.in
+++ b/gold/testsuite/Makefile.in
@@ -45,7 +45,7 @@ target_triplet = @target@
 check_PROGRAMS = object_unittest$(EXEEXT) binary_unittest$(EXEEXT) \
 	$(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \
 	$(am__EXEEXT_4) $(am__EXEEXT_5) $(am__EXEEXT_6) \
-	$(am__EXEEXT_7) $(am__EXEEXT_8)
+	$(am__EXEEXT_7) $(am__EXEEXT_8) $(am__EXEEXT_9)
 @GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_1 = basic_test \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	basic_static_test basic_pic_test \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	basic_static_pic_test \
@@ -150,11 +150,24 @@ check_PROGRAMS = object_unittest$(EXEEXT) binary_unittest$(EXEEXT) \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@@STATIC_TLS_TRUE@@TLS_TRUE@am__append_5 = tls_static_test \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@@STATIC_TLS_TRUE@@TLS_TRUE@	tls_static_pic_test
 @FN_PTRS_IN_SO_WITHOUT_PIC_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@@TLS_TRUE@am__append_6 = tls_shared_nonpic_test
+@CONSTRUCTOR_PRIORITY_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_7 = initpri1
+@CONSTRUCTOR_PRIORITY_FALSE@initpri1_DEPENDENCIES = libgoldtest.a \
+@CONSTRUCTOR_PRIORITY_FALSE@	../libgold.a \
+@CONSTRUCTOR_PRIORITY_FALSE@	../../libiberty/libiberty.a \
+@CONSTRUCTOR_PRIORITY_FALSE@	$(am__DEPENDENCIES_1) \
+@CONSTRUCTOR_PRIORITY_FALSE@	$(am__DEPENDENCIES_1)
+@GCC_FALSE@initpri1_DEPENDENCIES = libgoldtest.a ../libgold.a \
+@GCC_FALSE@	../../libiberty/libiberty.a $(am__DEPENDENCIES_1) \
+@GCC_FALSE@	$(am__DEPENDENCIES_1)
+@NATIVE_LINKER_FALSE@initpri1_DEPENDENCIES = libgoldtest.a \
+@NATIVE_LINKER_FALSE@	../libgold.a ../../libiberty/libiberty.a \
+@NATIVE_LINKER_FALSE@	$(am__DEPENDENCIES_1) \
+@NATIVE_LINKER_FALSE@	$(am__DEPENDENCIES_1)
 
 # Test --detect-odr-violations
 
 # Similar to --detect-odr-violations: check for undefined symbols in .so's
-@GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_7 = debug_msg.sh \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_8 = debug_msg.sh \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	undef_symbol.sh
 
 # Create the data files that debug_msg.sh analyzes.
@@ -163,11 +176,11 @@ check_PROGRAMS = object_unittest$(EXEEXT) binary_unittest$(EXEEXT) \
 
 # We also want to make sure we do something reasonable when there's no
 # debug info available.  For the best test, we use .so's.
-@GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_8 = debug_msg.err \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_9 = debug_msg.err \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	debug_msg_so.err \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	debug_msg_ndebug.err \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	undef_symbol.err
-@GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_9 = debug_msg.err \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_10 = debug_msg.err \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	debug_msg_so.err \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	debug_msg_ndebug.err \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	undef_symbol.err
@@ -180,16 +193,16 @@ check_PROGRAMS = object_unittest$(EXEEXT) binary_unittest$(EXEEXT) \
 # sections, because it requires output-file resizing.
 
 # Test symbol versioning.
-@GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_10 = flagstest_compress_debug_sections \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_11 = flagstest_compress_debug_sections \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	flagstest_o_specialfile \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	flagstest_o_specialfile_and_compress_debug_sections \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	ver_test ver_test_2 ver_test_6 \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	script_test_1 script_test_2 \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	justsyms binary_test
-@GCC_TRUE@@NATIVE_LINKER_TRUE@@READELF_TRUE@am__append_11 =  \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@@READELF_TRUE@am__append_12 =  \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@@READELF_TRUE@	ver_test_2.sh \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@@READELF_TRUE@	ver_test_5.sh
-@GCC_TRUE@@NATIVE_LINKER_TRUE@@READELF_TRUE@am__append_12 =  \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@@READELF_TRUE@am__append_13 =  \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@@READELF_TRUE@	ver_test_2.syms \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@@READELF_TRUE@	ver_test_5.syms
 @GCC_FALSE@script_test_1_DEPENDENCIES = libgoldtest.a ../libgold.a \
@@ -220,13 +233,13 @@ check_PROGRAMS = object_unittest$(EXEEXT) binary_unittest$(EXEEXT) \
 @NATIVE_LINKER_FALSE@	../libgold.a ../../libiberty/libiberty.a \
 @NATIVE_LINKER_FALSE@	$(am__DEPENDENCIES_1) \
 @NATIVE_LINKER_FALSE@	$(am__DEPENDENCIES_1)
-@GCC_TRUE@@NATIVE_LINKER_TRUE@@OBJDUMP_AND_CPPFILT_TRUE@am__append_13 = ver_matching_test.sh \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@@OBJDUMP_AND_CPPFILT_TRUE@am__append_14 = ver_matching_test.sh \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@@OBJDUMP_AND_CPPFILT_TRUE@	script_test_3.sh
-@GCC_TRUE@@NATIVE_LINKER_TRUE@@OBJDUMP_AND_CPPFILT_TRUE@am__append_14 = ver_matching_test.stdout \
-@GCC_TRUE@@NATIVE_LINKER_TRUE@@OBJDUMP_AND_CPPFILT_TRUE@	script_test_3.stdout
 @GCC_TRUE@@NATIVE_LINKER_TRUE@@OBJDUMP_AND_CPPFILT_TRUE@am__append_15 = ver_matching_test.stdout \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@@OBJDUMP_AND_CPPFILT_TRUE@	script_test_3.stdout
-@GCC_TRUE@@NATIVE_LINKER_TRUE@@OBJDUMP_AND_CPPFILT_TRUE@am__append_16 = script_test_3
+@GCC_TRUE@@NATIVE_LINKER_TRUE@@OBJDUMP_AND_CPPFILT_TRUE@am__append_16 = ver_matching_test.stdout \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@@OBJDUMP_AND_CPPFILT_TRUE@	script_test_3.stdout
+@GCC_TRUE@@NATIVE_LINKER_TRUE@@OBJDUMP_AND_CPPFILT_TRUE@am__append_17 = script_test_3
 subdir = testsuite
 DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
@@ -289,7 +302,8 @@ libgoldtest_a_OBJECTS = $(am_libgoldtest_a_OBJECTS)
 @GCC_TRUE@@NATIVE_LINKER_TRUE@@STATIC_TLS_TRUE@@TLS_TRUE@am__EXEEXT_5 = tls_static_test$(EXEEXT) \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@@STATIC_TLS_TRUE@@TLS_TRUE@	tls_static_pic_test$(EXEEXT)
 @FN_PTRS_IN_SO_WITHOUT_PIC_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@@TLS_TRUE@am__EXEEXT_6 = tls_shared_nonpic_test$(EXEEXT)
-@GCC_TRUE@@NATIVE_LINKER_TRUE@am__EXEEXT_7 = flagstest_compress_debug_sections$(EXEEXT) \
+@CONSTRUCTOR_PRIORITY_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@am__EXEEXT_7 = initpri1$(EXEEXT)
+@GCC_TRUE@@NATIVE_LINKER_TRUE@am__EXEEXT_8 = flagstest_compress_debug_sections$(EXEEXT) \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	flagstest_o_specialfile$(EXEEXT) \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	flagstest_o_specialfile_and_compress_debug_sections$(EXEEXT) \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	ver_test$(EXEEXT) \
@@ -299,7 +313,7 @@ libgoldtest_a_OBJECTS = $(am_libgoldtest_a_OBJECTS)
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	script_test_2$(EXEEXT) \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	justsyms$(EXEEXT) \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	binary_test$(EXEEXT)
-@GCC_TRUE@@NATIVE_LINKER_TRUE@@OBJDUMP_AND_CPPFILT_TRUE@am__EXEEXT_8 = script_test_3$(EXEEXT)
+@GCC_TRUE@@NATIVE_LINKER_TRUE@@OBJDUMP_AND_CPPFILT_TRUE@am__EXEEXT_9 = script_test_3$(EXEEXT)
 basic_pic_test_SOURCES = basic_pic_test.c
 basic_pic_test_OBJECTS = basic_pic_test.$(OBJEXT)
 basic_pic_test_LDADD = $(LDADD)
@@ -425,6 +439,10 @@ flagstest_o_specialfile_and_compress_debug_sections_LDADD = $(LDADD)
 flagstest_o_specialfile_and_compress_debug_sections_DEPENDENCIES =  \
 	libgoldtest.a ../libgold.a ../../libiberty/libiberty.a \
 	$(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1)
+am__initpri1_SOURCES_DIST = initpri1.c
+@CONSTRUCTOR_PRIORITY_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@am_initpri1_OBJECTS = initpri1.$(OBJEXT)
+initpri1_OBJECTS = $(am_initpri1_OBJECTS)
+initpri1_LDADD = $(LDADD)
 am__justsyms_SOURCES_DIST = justsyms_1.cc
 @GCC_TRUE@@NATIVE_LINKER_TRUE@am_justsyms_OBJECTS =  \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	justsyms_1.$(OBJEXT)
@@ -638,10 +656,10 @@ SOURCES = $(libgoldtest_a_SOURCES) basic_pic_test.c \
 	$(exception_static_test_SOURCES) $(exception_test_SOURCES) \
 	flagstest_compress_debug_sections.c flagstest_o_specialfile.c \
 	flagstest_o_specialfile_and_compress_debug_sections.c \
-	$(justsyms_SOURCES) $(object_unittest_SOURCES) \
-	$(script_test_1_SOURCES) $(script_test_2_SOURCES) \
-	script_test_3.c $(tls_pic_test_SOURCES) \
-	$(tls_shared_ie_test_SOURCES) \
+	$(initpri1_SOURCES) $(justsyms_SOURCES) \
+	$(object_unittest_SOURCES) $(script_test_1_SOURCES) \
+	$(script_test_2_SOURCES) script_test_3.c \
+	$(tls_pic_test_SOURCES) $(tls_shared_ie_test_SOURCES) \
 	$(tls_shared_nonpic_test_SOURCES) $(tls_shared_test_SOURCES) \
 	$(tls_static_pic_test_SOURCES) $(tls_static_test_SOURCES) \
 	$(tls_test_SOURCES) $(two_file_mixed_2_shared_test_SOURCES) \
@@ -678,8 +696,8 @@ DIST_SOURCES = $(libgoldtest_a_SOURCES) basic_pic_test.c \
 	$(am__exception_test_SOURCES_DIST) \
 	flagstest_compress_debug_sections.c flagstest_o_specialfile.c \
 	flagstest_o_specialfile_and_compress_debug_sections.c \
-	$(am__justsyms_SOURCES_DIST) $(object_unittest_SOURCES) \
-	$(am__script_test_1_SOURCES_DIST) \
+	$(am__initpri1_SOURCES_DIST) $(am__justsyms_SOURCES_DIST) \
+	$(object_unittest_SOURCES) $(am__script_test_1_SOURCES_DIST) \
 	$(am__script_test_2_SOURCES_DIST) script_test_3.c \
 	$(am__tls_pic_test_SOURCES_DIST) \
 	$(am__tls_shared_ie_test_SOURCES_DIST) \
@@ -724,6 +742,8 @@ CATOBJEXT = @CATOBJEXT@
 CC = @CC@
 CCDEPMODE = @CCDEPMODE@
 CFLAGS = @CFLAGS@
+CONSTRUCTOR_PRIORITY_FALSE = @CONSTRUCTOR_PRIORITY_FALSE@
+CONSTRUCTOR_PRIORITY_TRUE = @CONSTRUCTOR_PRIORITY_TRUE@
 CPP = @CPP@
 CPPFLAGS = @CPPFLAGS@
 CXX = @CXX@
@@ -862,13 +882,13 @@ INCLUDES = \
 # .o's), but not all of them (such as .so's and .err files).  We
 # improve on that here.  automake-1.9 info docs say "mostlyclean" is
 # the right choice for files 'make' builds that people rebuild.
-MOSTLYCLEANFILES = *.so $(am__append_9) $(am__append_15)
+MOSTLYCLEANFILES = *.so $(am__append_10) $(am__append_16)
 
 # We will add to these later, for each individual test.  Note
 # that we add each test under check_SCRIPTS or check_PROGRAMS;
 # the TESTS variable is automatically populated from these.
-check_SCRIPTS = $(am__append_7) $(am__append_11) $(am__append_13)
-check_DATA = $(am__append_8) $(am__append_12) $(am__append_14)
+check_SCRIPTS = $(am__append_8) $(am__append_12) $(am__append_14)
+check_DATA = $(am__append_9) $(am__append_13) $(am__append_15)
 TESTS = $(check_SCRIPTS) $(check_PROGRAMS)
 
 # ---------------------------------------------------------------------
@@ -1074,6 +1094,9 @@ binary_unittest_SOURCES = binary_unittest.cc
 @FN_PTRS_IN_SO_WITHOUT_PIC_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@@TLS_TRUE@tls_shared_nonpic_test_DEPENDENCIES = gcctestdir/ld tls_test_shared_nonpic.so
 @FN_PTRS_IN_SO_WITHOUT_PIC_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@@TLS_TRUE@tls_shared_nonpic_test_LDFLAGS = -Bgcctestdir/ -Wl,-R,.
 @FN_PTRS_IN_SO_WITHOUT_PIC_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@@TLS_TRUE@tls_shared_nonpic_test_LDADD = tls_test_shared_nonpic.so -lpthread
+@CONSTRUCTOR_PRIORITY_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@initpri1_SOURCES = initpri1.c
+@CONSTRUCTOR_PRIORITY_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@initpri1_DEPENDENCIES = gcctestdir/ld
+@CONSTRUCTOR_PRIORITY_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@initpri1_LDFLAGS = -Bgcctestdir/
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ver_test_SOURCES = ver_test_main.cc
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ver_test_DEPENDENCIES = gcctestdir/ld ver_test_1.so ver_test_2.so ver_test_4.so
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ver_test_LDFLAGS = -Bgcctestdir/ -Wl,-R,.
@@ -1219,6 +1242,9 @@ exception_test$(EXEEXT): $(exception_test_OBJECTS) $(exception_test_DEPENDENCIES
 @NATIVE_LINKER_FALSE@flagstest_o_specialfile_and_compress_debug_sections$(EXEEXT): $(flagstest_o_specialfile_and_compress_debug_sections_OBJECTS) $(flagstest_o_specialfile_and_compress_debug_sections_DEPENDENCIES) 
 @NATIVE_LINKER_FALSE@	@rm -f flagstest_o_specialfile_and_compress_debug_sections$(EXEEXT)
 @NATIVE_LINKER_FALSE@	$(LINK) $(flagstest_o_specialfile_and_compress_debug_sections_LDFLAGS) $(flagstest_o_specialfile_and_compress_debug_sections_OBJECTS) $(flagstest_o_specialfile_and_compress_debug_sections_LDADD) $(LIBS)
+initpri1$(EXEEXT): $(initpri1_OBJECTS) $(initpri1_DEPENDENCIES) 
+	@rm -f initpri1$(EXEEXT)
+	$(LINK) $(initpri1_LDFLAGS) $(initpri1_OBJECTS) $(initpri1_LDADD) $(LIBS)
 justsyms$(EXEEXT): $(justsyms_OBJECTS) $(justsyms_DEPENDENCIES) 
 	@rm -f justsyms$(EXEEXT)
 	$(CXXLINK) $(justsyms_LDFLAGS) $(justsyms_OBJECTS) $(justsyms_LDADD) $(LIBS)
@@ -1348,6 +1374,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/flagstest_compress_debug_sections.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/flagstest_o_specialfile.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/flagstest_o_specialfile_and_compress_debug_sections.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/initpri1.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/justsyms_1.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/object_unittest.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/script_test_1.Po@am__quote@
diff --git a/gold/testsuite/initpri1.c b/gold/testsuite/initpri1.c
new file mode 100644
index 0000000..4826389
--- /dev/null
+++ b/gold/testsuite/initpri1.c
@@ -0,0 +1,87 @@
+/* initpri1.c -- test constructor priorities.
+
+   Copyright 2007, 2008 Free Software Foundation, Inc.
+   Copied from the gcc testsuite, where the test was contributed by
+   Mark Mitchell <mark@codesourcery.com>.
+
+   This file is part of gold.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.
+
+   This is a test of a common symbol in the main program and a
+   versioned symbol in a shared library.  The common symbol in the
+   main program should override the shared library symbol.  */
+
+#include <stdlib.h>
+
+int i;
+int j;
+
+void c1() __attribute__((constructor (500)));
+void c2() __attribute__((constructor (700)));
+void c3() __attribute__((constructor (600)));
+
+void c1() {
+  if (i++ != 0)
+    abort ();
+}
+
+void c2() {
+  if (i++ != 2)
+    abort ();
+}
+
+void c3() {
+  if (i++ != 1)
+    abort ();
+}
+
+void d1() __attribute__((destructor (500)));
+void d2() __attribute__((destructor (700)));
+void d3() __attribute__((destructor (600)));
+
+void d1() {
+  if (--i != 0)
+    abort ();
+}
+
+void d2() {
+  if (--i != 2)
+    abort ();
+}
+
+void d3() {
+  if (j != 2)
+    abort ();
+  if (--i != 1)
+    abort ();
+}
+
+void cd4() __attribute__((constructor (800), destructor (800)));
+
+void cd4() {
+  if (i != 3)
+    abort ();
+  ++j;
+}
+
+int main () {
+  if (i != 3)
+    return 1;
+  if (j != 1)
+    abort ();
+  return 0;
+}