From: Cary Coutant Date: Wed, 8 Jun 2011 04:24:59 +0000 (+0000) Subject: * testsuite/Makefile.am: Add incremental_copy_test, X-Git-Tag: sid-snapshot-20110701~272 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a5ee4d5d1e92a48c988c6be740f17e4d4f9b166c;p=platform%2Fupstream%2Fbinutils.git * testsuite/Makefile.am: Add incremental_copy_test, incremental_common_test_1. * testsuite/Makefile.in: Regenerate. * testsuite/common_test_1_v1.c: New source file. * testsuite/common_test_1_v2.c: New source file. * testsuite/copy_test_v1.cc: New source file. --- diff --git a/gold/ChangeLog b/gold/ChangeLog index 867d776..363de0f 100644 --- a/gold/ChangeLog +++ b/gold/ChangeLog @@ -1,5 +1,14 @@ 2011-06-07 Cary Coutant + * testsuite/Makefile.am: Add incremental_copy_test, + incremental_common_test_1. + * testsuite/Makefile.in: Regenerate. + * testsuite/common_test_1_v1.c: New source file. + * testsuite/common_test_1_v2.c: New source file. + * testsuite/copy_test_v1.cc: New source file. + +2011-06-07 Cary Coutant + * common.cc (Symbol_table::do_allocate_commons_list): For incremental update, allocate common from bss section's free list. * incremental-dump.cc (dump_incremental_inputs): Print flag for diff --git a/gold/testsuite/Makefile.am b/gold/testsuite/Makefile.am index a068fa7..8a05ac8 100644 --- a/gold/testsuite/Makefile.am +++ b/gold/testsuite/Makefile.am @@ -1851,6 +1851,22 @@ incremental_test_4: two_file_test_1.o two_file_test_1b.o two_file_test_2_v1.o \ cp -f two_file_test_2.o two_file_test_tmp_4.o $(CXXLINK) -Wl,--incremental-update,--incremental-base=incremental_test_4.base -Bgcctestdir/ two_file_test_1.o two_file_test_1b.o two_file_test_tmp_4.o two_file_test_main.o +check_PROGRAMS += incremental_copy_test +incremental_copy_test: copy_test_v1.o copy_test.o copy_test_1.so copy_test_2.so + cp -f copy_test_v1.o copy_test_tmp.o + $(CXXLINK) -Wl,--incremental-full -Bgcctestdir/ -Wl,-R,. copy_test_tmp.o copy_test_1.so copy_test_2.so + @sleep 1 + cp -f copy_test.o copy_test_tmp.o + $(CXXLINK) -Wl,--incremental-update -Bgcctestdir/ -Wl,-R,. copy_test_tmp.o copy_test_1.so copy_test_2.so + +check_PROGRAMS += incremental_common_test_1 +incremental_common_test_1: common_test_1_v1.o common_test_1_v2.o gcctestdir/ld + cp -f common_test_1_v1.o common_test_1_tmp.o + $(CXXLINK) -Wl,--incremental-full -Bgcctestdir/ common_test_1_tmp.o + @sleep 1 + cp -f common_test_1_v2.o common_test_1_tmp.o + $(CXXLINK) -Wl,--incremental-update -Bgcctestdir/ common_test_1_tmp.o + endif DEFAULT_TARGET_X86_64 endif GCC diff --git a/gold/testsuite/Makefile.in b/gold/testsuite/Makefile.in index c4b2ea0..f8836d5 100644 --- a/gold/testsuite/Makefile.in +++ b/gold/testsuite/Makefile.in @@ -435,7 +435,9 @@ check_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \ # Incremental linking is currently supported only on the x86_64 target. @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_35 = incremental_test_2 \ @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@ incremental_test_3 \ -@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@ incremental_test_4 +@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@ incremental_test_4 \ +@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@am__append_36 = 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 \ @@ -683,7 +685,9 @@ libgoldtest_a_OBJECTS = $(am_libgoldtest_a_OBJECTS) @GCC_TRUE@@NATIVE_LINKER_TRUE@am__EXEEXT_22 = start_lib_test$(EXEEXT) @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@am__EXEEXT_23 = incremental_test_2$(EXEEXT) \ @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@ incremental_test_3$(EXEEXT) \ -@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@ incremental_test_4$(EXEEXT) +@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@ incremental_test_4$(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) basic_pic_test_SOURCES = basic_pic_test.c basic_pic_test_OBJECTS = basic_pic_test.$(OBJEXT) basic_pic_test_LDADD = $(LDADD) @@ -1008,6 +1012,19 @@ ifuncmain7pie_DEPENDENCIES = libgoldtest.a ../libgold.a \ ifuncmain7static_OBJECTS = $(am_ifuncmain7static_OBJECTS) ifuncmain7static_LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) \ $(ifuncmain7static_LDFLAGS) $(LDFLAGS) -o $@ +incremental_common_test_1_SOURCES = incremental_common_test_1.c +incremental_common_test_1_OBJECTS = \ + incremental_common_test_1.$(OBJEXT) +incremental_common_test_1_LDADD = $(LDADD) +incremental_common_test_1_DEPENDENCIES = libgoldtest.a ../libgold.a \ + ../../libiberty/libiberty.a $(am__DEPENDENCIES_1) \ + $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) +incremental_copy_test_SOURCES = incremental_copy_test.c +incremental_copy_test_OBJECTS = incremental_copy_test.$(OBJEXT) +incremental_copy_test_LDADD = $(LDADD) +incremental_copy_test_DEPENDENCIES = libgoldtest.a ../libgold.a \ + ../../libiberty/libiberty.a $(am__DEPENDENCIES_1) \ + $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) incremental_test_2_SOURCES = incremental_test_2.c incremental_test_2_OBJECTS = incremental_test_2.$(OBJEXT) incremental_test_2_LDADD = $(LDADD) @@ -1504,7 +1521,8 @@ SOURCES = $(libgoldtest_a_SOURCES) basic_pic_test.c basic_pie_test.c \ $(ifuncmain5static_SOURCES) ifuncmain5staticpic.c \ ifuncmain6pie.c $(ifuncmain7_SOURCES) ifuncmain7pic.c \ ifuncmain7picstatic.c ifuncmain7pie.c \ - $(ifuncmain7static_SOURCES) incremental_test_2.c \ + $(ifuncmain7static_SOURCES) incremental_common_test_1.c \ + incremental_copy_test.c incremental_test_2.c \ incremental_test_3.c incremental_test_4.c $(initpri1_SOURCES) \ $(justsyms_SOURCES) $(large_SOURCES) local_labels_test.c \ many_sections_r_test.c $(many_sections_test_SOURCES) \ @@ -2577,6 +2595,24 @@ ifuncmain7$(EXEEXT): $(ifuncmain7_OBJECTS) $(ifuncmain7_DEPENDENCIES) ifuncmain7static$(EXEEXT): $(ifuncmain7static_OBJECTS) $(ifuncmain7static_DEPENDENCIES) @rm -f ifuncmain7static$(EXEEXT) $(ifuncmain7static_LINK) $(ifuncmain7static_OBJECTS) $(ifuncmain7static_LDADD) $(LIBS) +@DEFAULT_TARGET_X86_64_FALSE@incremental_common_test_1$(EXEEXT): $(incremental_common_test_1_OBJECTS) $(incremental_common_test_1_DEPENDENCIES) +@DEFAULT_TARGET_X86_64_FALSE@ @rm -f incremental_common_test_1$(EXEEXT) +@DEFAULT_TARGET_X86_64_FALSE@ $(LINK) $(incremental_common_test_1_OBJECTS) $(incremental_common_test_1_LDADD) $(LIBS) +@GCC_FALSE@incremental_common_test_1$(EXEEXT): $(incremental_common_test_1_OBJECTS) $(incremental_common_test_1_DEPENDENCIES) +@GCC_FALSE@ @rm -f incremental_common_test_1$(EXEEXT) +@GCC_FALSE@ $(LINK) $(incremental_common_test_1_OBJECTS) $(incremental_common_test_1_LDADD) $(LIBS) +@NATIVE_LINKER_FALSE@incremental_common_test_1$(EXEEXT): $(incremental_common_test_1_OBJECTS) $(incremental_common_test_1_DEPENDENCIES) +@NATIVE_LINKER_FALSE@ @rm -f incremental_common_test_1$(EXEEXT) +@NATIVE_LINKER_FALSE@ $(LINK) $(incremental_common_test_1_OBJECTS) $(incremental_common_test_1_LDADD) $(LIBS) +@DEFAULT_TARGET_X86_64_FALSE@incremental_copy_test$(EXEEXT): $(incremental_copy_test_OBJECTS) $(incremental_copy_test_DEPENDENCIES) +@DEFAULT_TARGET_X86_64_FALSE@ @rm -f incremental_copy_test$(EXEEXT) +@DEFAULT_TARGET_X86_64_FALSE@ $(LINK) $(incremental_copy_test_OBJECTS) $(incremental_copy_test_LDADD) $(LIBS) +@GCC_FALSE@incremental_copy_test$(EXEEXT): $(incremental_copy_test_OBJECTS) $(incremental_copy_test_DEPENDENCIES) +@GCC_FALSE@ @rm -f incremental_copy_test$(EXEEXT) +@GCC_FALSE@ $(LINK) $(incremental_copy_test_OBJECTS) $(incremental_copy_test_LDADD) $(LIBS) +@NATIVE_LINKER_FALSE@incremental_copy_test$(EXEEXT): $(incremental_copy_test_OBJECTS) $(incremental_copy_test_DEPENDENCIES) +@NATIVE_LINKER_FALSE@ @rm -f incremental_copy_test$(EXEEXT) +@NATIVE_LINKER_FALSE@ $(LINK) $(incremental_copy_test_OBJECTS) $(incremental_copy_test_LDADD) $(LIBS) @DEFAULT_TARGET_X86_64_FALSE@incremental_test_2$(EXEEXT): $(incremental_test_2_OBJECTS) $(incremental_test_2_DEPENDENCIES) @DEFAULT_TARGET_X86_64_FALSE@ @rm -f incremental_test_2$(EXEEXT) @DEFAULT_TARGET_X86_64_FALSE@ $(LINK) $(incremental_test_2_OBJECTS) $(incremental_test_2_LDADD) $(LIBS) @@ -2971,6 +3007,8 @@ distclean-compile: @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ifuncmain7pic.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ifuncmain7picstatic.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ifuncmain7pie.Po@am__quote@ +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/incremental_common_test_1.Po@am__quote@ +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/incremental_copy_test.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/incremental_test_2.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/incremental_test_3.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/incremental_test_4.Po@am__quote@ @@ -3652,6 +3690,10 @@ incremental_test_3.log: incremental_test_3$(EXEEXT) @p='incremental_test_3$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post) incremental_test_4.log: incremental_test_4$(EXEEXT) @p='incremental_test_4$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post) +incremental_copy_test.log: incremental_copy_test$(EXEEXT) + @p='incremental_copy_test$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post) +incremental_common_test_1.log: incremental_common_test_1$(EXEEXT) + @p='incremental_common_test_1$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post) .test.log: @p='$<'; $(am__check_pre) $(TEST_LOG_COMPILE) "$$tst" $(am__check_post) @am__EXEEXT_TRUE@.test$(EXEEXT).log: @@ -4615,6 +4657,18 @@ 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 two_file_test_2.o two_file_test_tmp_4.o @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXLINK) -Wl,--incremental-update,--incremental-base=incremental_test_4.base -Bgcctestdir/ two_file_test_1.o two_file_test_1b.o two_file_test_tmp_4.o two_file_test_main.o +@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@incremental_copy_test: copy_test_v1.o copy_test.o copy_test_1.so copy_test_2.so +@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@ cp -f copy_test_v1.o copy_test_tmp.o +@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXLINK) -Wl,--incremental-full -Bgcctestdir/ -Wl,-R,. copy_test_tmp.o copy_test_1.so copy_test_2.so +@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@ @sleep 1 +@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@ cp -f copy_test.o copy_test_tmp.o +@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXLINK) -Wl,--incremental-update -Bgcctestdir/ -Wl,-R,. copy_test_tmp.o copy_test_1.so copy_test_2.so +@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@incremental_common_test_1: common_test_1_v1.o common_test_1_v2.o gcctestdir/ld +@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@ cp -f common_test_1_v1.o common_test_1_tmp.o +@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXLINK) -Wl,--incremental-full -Bgcctestdir/ common_test_1_tmp.o +@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@ @sleep 1 +@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@ cp -f common_test_1_v2.o common_test_1_tmp.o +@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXLINK) -Wl,--incremental-update -Bgcctestdir/ common_test_1_tmp.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 diff --git a/gold/testsuite/common_test_1_v1.c b/gold/testsuite/common_test_1_v1.c new file mode 100644 index 0000000..86abc40 --- /dev/null +++ b/gold/testsuite/common_test_1_v1.c @@ -0,0 +1,79 @@ +/* common_test_1_v1.c -- test common symbol sorting + + Copyright 2008, 2011 Free Software Foundation, Inc. + Written by Ian Lance Taylor + + 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. + + This file is a modified version of the real test case, to be used + while testing the --incremental option. */ + +#include + +/* Common symbols should be sorted by size, largest first, and then by + alignment, largest first. We mix up the names, because gas seems + to sort common symbols roughly by name. */ + +int c9[90]; +int c8[80]; +int c7[70]; +int c6[60]; +int c5[10]; +int c4[20]; +int c3[30]; +int c2[40]; +int c1[50]; + +int a1 __attribute__ ((aligned (1 << 9))); +int a2 __attribute__ ((aligned (1 << 8))); +int a3 __attribute__ ((aligned (1 << 7))); +int a4 __attribute__ ((aligned (1 << 6))); +int a5 __attribute__ ((aligned (1 << 1))); +int a6 __attribute__ ((aligned (1 << 2))); +int a7 __attribute__ ((aligned (1 << 3))); +int a8 __attribute__ ((aligned (1 << 4))); +int a9 __attribute__ ((aligned (1 << 5))); + +int +main (int argc __attribute__ ((unused)), char** argv __attribute__ ((unused))) +{ + /* These tests are deliberately incorrect. */ + assert (c5 < c4); + assert (c4 < c3); + assert (c3 < c2); + assert (c2 < c1); + assert (c1 < c6); + assert (c6 < c7); + assert (c7 < c8); + assert (c8 < c9); + + assert (&a1 > &a2); + assert (&a2 > &a3); + assert (&a3 > &a4); + assert (&a4 > &a9); + assert (&a9 > &a8); + assert (&a8 > &a7); + assert (&a7 > &a6); + assert (&a6 > &a5); + + return 0; +} diff --git a/gold/testsuite/common_test_1_v2.c b/gold/testsuite/common_test_1_v2.c new file mode 100644 index 0000000..c66a647 --- /dev/null +++ b/gold/testsuite/common_test_1_v2.c @@ -0,0 +1,77 @@ +/* common_test_1_v2.c -- test common symbol sorting + + Copyright 2008 Free Software Foundation, Inc. + Written by Ian Lance Taylor + + 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 + +/* Common symbols should be sorted by size, largest first, and then by + alignment, largest first. We mix up the names, because gas seems + to sort common symbols roughly by name. */ + +int c9[90]; +int c8[80]; +int c7[70]; +int c6[60]; +int c5[10]; +int c4[20]; +int c3[30]; +int c2[40]; +int c1[50]; + +int a1 __attribute__ ((aligned (1 << 9))); +int a2 __attribute__ ((aligned (1 << 8))); +int a3 __attribute__ ((aligned (1 << 7))); +int a4 __attribute__ ((aligned (1 << 6))); +int a5 __attribute__ ((aligned (1 << 1))); +int a6 __attribute__ ((aligned (1 << 2))); +int a7 __attribute__ ((aligned (1 << 3))); +int a8 __attribute__ ((aligned (1 << 4))); +int a9 __attribute__ ((aligned (1 << 5))); + +int +main (int argc __attribute__ ((unused)), char** argv __attribute__ ((unused))) +{ + // After an incremental update, all guarantees about ordering + // are null. + assert (c5 != c4); + assert (c4 != c3); + assert (c3 != c2); + assert (c2 != c1); + assert (c1 != c6); + assert (c6 != c7); + assert (c7 != c8); + assert (c8 != c9); + + assert (&a1 != &a2); + assert (&a2 != &a3); + assert (&a3 != &a4); + assert (&a4 != &a9); + assert (&a9 != &a8); + assert (&a8 != &a7); + assert (&a7 != &a6); + assert (&a6 != &a5); + + return 0; +} diff --git a/gold/testsuite/copy_test_v1.cc b/gold/testsuite/copy_test_v1.cc new file mode 100644 index 0000000..63f7dfd --- /dev/null +++ b/gold/testsuite/copy_test_v1.cc @@ -0,0 +1,47 @@ +// copy_test_v1.cc -- test copy relocs for gold + +// Copyright 2008, 2011 Free Software Foundation, Inc. +// Written by Ian Lance Taylor . + +// 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 source file is used for testing the --incremental option. +// The object built from this source will be incrementally updated +// with the correct object built from copy_test.cc. + +#include +#include + +// Misalign the BSS section. +static char c; + +// From copy_test_1.cc. +extern char b; + +// From copy_test_2.cc. +extern long long l; + +int +main() +{ + assert(c == 0); + assert(b == 1); + assert(l == 3); // Deliberately incorrect. + assert((reinterpret_cast(&l) & 0x7) == 0); + return 0; +}