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Fix problems with the --dynamic-list option.

Browse Source 
PR gold/13577 complains that even though symbols listed in
the --dynamic-list script are exported, they are still bound symbolically
if -Bsymbolic is also used. There are two underlying problems here.
First, -Bsymbolic should be overridden by --dynamic-list, since the
dynamic list provides an explicit list of symbols that are not bound
within the library, and if we go ahead and set DT_SYMBOLIC, then the
dynamic loader will bind it within the library anyway. Second, gold
did not properly identify the symbols listed in the file as preemptible.

PR gold/16530 complains that symbols listed in the --dynamic-list script
can still be garbage collected. I've fixed this by checking the symbols
as they're added to the symbol table. (Unlike the --export-dynamic-symbol
option, we can't iterate over the list, because the --dynamic-list script
can have wildcards in it.)

gold/

2014-02-05  Cary Coutant  <ccoutant@google.com>

	PR gold/13577
	* options.cc (General_options::parse_dynamic_list):
	Set have_dynamic_list_.
	(General_options::General_options): Initialize have_dynamic_list_.
	(General_options::finalize): Turn off -Bsymbolic and
	-Bsymbolic-functions if --dynamic-list provided.
	* options.h (General_options::have_dynamic_list): New function.
	(General_options::have_dynamic_list_): New data member.
	* symtab.h (Symbol::is_preemptible): Handle --dynamic-list
	correctly.

	PR gold/16530
	* symtab.cc (Symbol_table::add_from_relobj): If symbol is named
	in --dynamic-list, mark it.

	* testsuite/Makefile.am (gc_dynamic_list_test.sh): New test case.
	(dynamic_list_2): New test case.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/dynamic_list_2.cc: New file.
	* testsuite/dynamic_list_2.t: New file.
	* testsuite/dynamic_list_lib1.cc: New file.
	* testsuite/dynamic_list_lib2.cc: New file.
	* testsuite/gc_dynamic_list_test.c: New file.
	* testsuite/gc_dynamic_list_test.sh: New file.
	* testsuite/gc_dynamic_list_test.t: New file.
This commit is contained in:
Cary Coutant 2014-02-05 14:01:52 -08:00
parent ee1e2d4fb6
commit fd834e57ff
13 changed files with 347 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
gold/options.cc
View File

@ -549,6 +549,7 @@ General_options::parse_dynamic_list(const char*, const char* arg,
{
if (!read_dynamic_list(arg, cmdline, &this->dynamic_list_))
gold::gold_fatal(_("unable to parse dynamic-list script file %s"), arg);
this->have_dynamic_list_ = true;
}
void
@ -918,6 +919,7 @@ General_options::General_options()
do_demangle_(false),
plugins_(NULL),
dynamic_list_(),
have_dynamic_list_(false),
incremental_mode_(INCREMENTAL_OFF),
incremental_disposition_(INCREMENTAL_STARTUP),
incremental_startup_disposition_(INCREMENTAL_CHECK),
@ -1199,6 +1201,13 @@ General_options::finalize()
// in the path, as appropriate.
this->add_sysroot();
// --dynamic-list overrides -Bsymbolic and -Bsymbolic-functions.
if (this->have_dynamic_list())
{
this->set_Bsymbolic(false);
this->set_Bsymbolic_functions(false);
}
// Now that we've normalized the options, check for contradictory ones.
if (this->shared() && this->is_static())
gold_fatal(_("-shared and -static are incompatible"));

7
gold/options.h
View File

@ -1438,6 +1438,11 @@ class General_options
in_dynamic_list(const char* symbol) const
{ return this->dynamic_list_.version_script_info()->symbol_is_local(symbol); }
// True if a --dynamic-list script was provided.
bool
have_dynamic_list() const
{ return this->have_dynamic_list_; }
// Finalize the dynamic list.
void
finalize_dynamic_list()
@ -1591,6 +1596,8 @@ class General_options
// script.cc, we store this as a Script_options object, even though
// we only use a single Version_tree from it.
Script_options dynamic_list_;
// Whether a --dynamic-list file was provided.
bool have_dynamic_list_;
// The incremental linking mode.
Incremental_mode incremental_mode_;
// The disposition given by the --incremental-changed,

3
gold/symtab.cc
View File

@ -1258,7 +1258,8 @@ Symbol_table::add_from_relobj(
&& res->is_externally_visible()
&& !res->is_from_dynobj()
&& (parameters->options().shared()
|| parameters->options().export_dynamic()))
|| parameters->options().export_dynamic()
|| parameters->options().in_dynamic_list(res->name())))
this->gc_mark_symbol(res);
if (is_defined_in_discarded_section)

10
gold/symtab.h
View File

@ -576,8 +576,14 @@ class Symbol
if (!parameters->options().shared())
return false;
// If the user used -Bsymbolic, then nothing is preemptible.
if (parameters->options().Bsymbolic())
// If the symbol was named in a --dynamic-list script, it is preemptible.
if (parameters->options().in_dynamic_list(this->name()))
return true;
// If the user used -Bsymbolic or provided a --dynamic-list script,
// then nothing (else) is preemptible.
if (parameters->options().Bsymbolic()
|| parameters->options().have_dynamic_list())
return false;
// If the user used -Bsymbolic-functions, then functions are not

26
gold/testsuite/Makefile.am
View File

@ -203,6 +203,16 @@ pr14265: pr14265.o
pr14265.stdout: pr14265
$(TEST_NM) --format=bsd --numeric-sort $< > $@
check_SCRIPTS += gc_dynamic_list_test.sh
check_DATA += gc_dynamic_list_test.stdout
MOSTLYCLEANFILES += gc_dynamic_list_test
gc_dynamic_list_test.o: gc_dynamic_list_test.c
$(COMPILE) -c -ffunction-sections -o $@ $<
gc_dynamic_list_test: gc_dynamic_list_test.o gcctestdir/ld $(srcdir)/gc_dynamic_list_test.t
$(LINK) -Bgcctestdir/ -Wl,--gc-sections -Wl,--dynamic-list,$(srcdir)/gc_dynamic_list_test.t gc_dynamic_list_test.o
gc_dynamic_list_test.stdout: gc_dynamic_list_test
$(TEST_NM) gc_dynamic_list_test > $@
check_SCRIPTS += icf_test.sh
check_DATA += icf_test.map
MOSTLYCLEANFILES += icf_test icf_test.map
@ -1465,6 +1475,22 @@ dynamic_list: basic_test.o gcctestdir/ld $(srcdir)/dynamic_list.t
dynamic_list.stdout: dynamic_list
$(TEST_READELF) -W --dyn-syms dynamic_list > dynamic_list.stdout
check_PROGRAMS += dynamic_list_2
dynamic_list_2_SOURCES = dynamic_list_2.cc
dynamic_list_2_DEPENDENCIES = gcctestdir/ld dynamic_list_lib1.so dynamic_list_lib2.so
dynamic_list_2_LDFLAGS = -Bgcctestdir/ -L. -Wl,-R,. -Wl,--no-as-needed
dynamic_list_2_LDADD = dynamic_list_lib1.so dynamic_list_lib2.so
dynamic_list_lib1.so: gcctestdir/ld dynamic_list_lib1.o
$(CXXLINK) -Bgcctestdir/ -shared dynamic_list_lib1.o
dynamic_list_lib1.o: dynamic_list_lib1.cc
$(CXXCOMPILE) -c -fpic -o $@ $<
dynamic_list_lib2.so: gcctestdir/ld dynamic_list_lib2.o $(srcdir)/dynamic_list_2.t
$(CXXLINK) -Bgcctestdir/ -shared -Wl,--dynamic-list,$(srcdir)/dynamic_list_2.t dynamic_list_lib2.o
dynamic_list_lib2.o: dynamic_list_lib2.cc
$(CXXCOMPILE) -c -fpic -o $@ $<
check_PROGRAMS += thin_archive_test_1
MOSTLYCLEANFILES += libthin1.a libthin3.a libthinall.a \
alt/thin_archive_test_2.o alt/thin_archive_test_4.o \

47
gold/testsuite/Makefile.in
View File

@ -78,7 +78,9 @@ check_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_2 = incremental_test.sh \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ gc_comdat_test.sh gc_tls_test.sh \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ gc_orphan_section_test.sh \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ pr14265.sh icf_test.sh \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ pr14265.sh \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ gc_dynamic_list_test.sh \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ icf_test.sh \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ icf_keep_unique_test.sh \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ icf_safe_test.sh \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ icf_safe_so_test.sh \
@ -109,7 +111,9 @@ check_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ gc_comdat_test.stdout \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ gc_tls_test.stdout \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ gc_orphan_section_test.stdout \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ pr14265.stdout icf_test.map \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ pr14265.stdout \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ gc_dynamic_list_test.stdout \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ icf_test.map \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ icf_keep_unique_test.stdout \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ icf_safe_test_1.stdout \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ icf_safe_test_2.stdout \
@ -132,7 +136,8 @@ check_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ incremental_test.cmdline \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ gc_comdat_test gc_tls_test \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ gc_orphan_section_test pr14265 \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ icf_test icf_test.map \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ gc_dynamic_list_test icf_test \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ icf_test.map \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ icf_keep_unique_test \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ icf_safe_test icf_safe_test.map \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ icf_safe_so_test \
@ -318,6 +323,7 @@ check_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_3 \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ tls_phdrs_script_test \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ tls_script_test script_test_11 \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ dynamic_list_2 \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ thin_archive_test_1 \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ thin_archive_test_2
@GCC_FALSE@script_test_1_DEPENDENCIES =
@ -823,6 +829,7 @@ libgoldtest_a_OBJECTS = $(am_libgoldtest_a_OBJECTS)
@GCC_TRUE@@NATIVE_LINKER_TRUE@ tls_phdrs_script_test$(EXEEXT) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ tls_script_test$(EXEEXT) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_11$(EXEEXT) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ dynamic_list_2$(EXEEXT) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ thin_archive_test_1$(EXEEXT) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ thin_archive_test_2$(EXEEXT)
@GCC_TRUE@@NATIVE_LINKER_TRUE@@PLUGINS_TRUE@am__EXEEXT_23 = plugin_test_1$(EXEEXT) \
@ -967,6 +974,11 @@ discard_locals_test_DEPENDENCIES = libgoldtest.a ../libgold.a \
$(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1)
discard_locals_test_LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
$(discard_locals_test_LDFLAGS) $(LDFLAGS) -o $@
@GCC_TRUE@@NATIVE_LINKER_TRUE@am_dynamic_list_2_OBJECTS = \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ dynamic_list_2.$(OBJEXT)
dynamic_list_2_OBJECTS = $(am_dynamic_list_2_OBJECTS)
dynamic_list_2_LINK = $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) \
$(dynamic_list_2_LDFLAGS) $(LDFLAGS) -o $@
@GCC_TRUE@@NATIVE_LINKER_TRUE@am_exception_same_shared_test_OBJECTS = \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ exception_test_main.$(OBJEXT)
exception_same_shared_test_OBJECTS = \
@ -1773,6 +1785,7 @@ SOURCES = $(libgoldtest_a_SOURCES) basic_pic_test.c basic_pie_test.c \
$(common_test_1_SOURCES) $(common_test_2_SOURCES) \
$(constructor_static_test_SOURCES) $(constructor_test_SOURCES) \
$(copy_test_SOURCES) $(discard_locals_test_SOURCES) \
$(dynamic_list_2_SOURCES) \
$(exception_same_shared_test_SOURCES) \
$(exception_separate_shared_12_test_SOURCES) \
$(exception_separate_shared_21_test_SOURCES) \
@ -2516,6 +2529,10 @@ LDADD = libgoldtest.a ../libgold.a ../../libiberty/libiberty.a $(LIBINTL) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@tls_script_test_DEPENDENCIES = $(tls_test_DEPENDENCIES) $(srcdir)/script_test_4.t
@GCC_TRUE@@NATIVE_LINKER_TRUE@tls_script_test_LDFLAGS = $(tls_test_LDFLAGS) -Wl,-T,$(srcdir)/script_test_4.t
@GCC_TRUE@@NATIVE_LINKER_TRUE@tls_script_test_LDADD = $(tls_test_LDADD)
@GCC_TRUE@@NATIVE_LINKER_TRUE@dynamic_list_2_SOURCES = dynamic_list_2.cc
@GCC_TRUE@@NATIVE_LINKER_TRUE@dynamic_list_2_DEPENDENCIES = gcctestdir/ld dynamic_list_lib1.so dynamic_list_lib2.so
@GCC_TRUE@@NATIVE_LINKER_TRUE@dynamic_list_2_LDFLAGS = -Bgcctestdir/ -L. -Wl,-R,. -Wl,--no-as-needed
@GCC_TRUE@@NATIVE_LINKER_TRUE@dynamic_list_2_LDADD = dynamic_list_lib1.so dynamic_list_lib2.so
@GCC_TRUE@@NATIVE_LINKER_TRUE@thin_archive_test_1_SOURCES = thin_archive_main.cc
@GCC_TRUE@@NATIVE_LINKER_TRUE@thin_archive_test_1_DEPENDENCIES = gcctestdir/ld libthin1.a alt/libthin2.a
@GCC_TRUE@@NATIVE_LINKER_TRUE@thin_archive_test_1_LDFLAGS = -Bgcctestdir/ -Lalt
@ -2711,6 +2728,9 @@ copy_test$(EXEEXT): $(copy_test_OBJECTS) $(copy_test_DEPENDENCIES)
discard_locals_test$(EXEEXT): $(discard_locals_test_OBJECTS) $(discard_locals_test_DEPENDENCIES)
@rm -f discard_locals_test$(EXEEXT)
$(discard_locals_test_LINK) $(discard_locals_test_OBJECTS) $(discard_locals_test_LDADD) $(LIBS)
dynamic_list_2$(EXEEXT): $(dynamic_list_2_OBJECTS) $(dynamic_list_2_DEPENDENCIES)
@rm -f dynamic_list_2$(EXEEXT)
$(dynamic_list_2_LINK) $(dynamic_list_2_OBJECTS) $(dynamic_list_2_LDADD) $(LIBS)
exception_same_shared_test$(EXEEXT): $(exception_same_shared_test_OBJECTS) $(exception_same_shared_test_DEPENDENCIES)
@rm -f exception_same_shared_test$(EXEEXT)
$(exception_same_shared_test_LINK) $(exception_same_shared_test_OBJECTS) $(exception_same_shared_test_LDADD) $(LIBS)
@ -3449,6 +3469,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/constructor_test.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/copy_test.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/discard_locals_test.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/dynamic_list_2.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/exception_test_1.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/exception_test_2.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/exception_test_main.Po@am__quote@
@ -3808,6 +3829,8 @@ gc_orphan_section_test.sh.log: gc_orphan_section_test.sh
@p='gc_orphan_section_test.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
pr14265.sh.log: pr14265.sh
@p='pr14265.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
gc_dynamic_list_test.sh.log: gc_dynamic_list_test.sh
@p='gc_dynamic_list_test.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
icf_test.sh.log: icf_test.sh
@p='icf_test.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
icf_keep_unique_test.sh.log: icf_keep_unique_test.sh
@ -4134,6 +4157,8 @@ tls_script_test.log: tls_script_test$(EXEEXT)
@p='tls_script_test$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
script_test_11.log: script_test_11$(EXEEXT)
@p='script_test_11$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
dynamic_list_2.log: dynamic_list_2$(EXEEXT)
@p='dynamic_list_2$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
thin_archive_test_1.log: thin_archive_test_1$(EXEEXT)
@p='thin_archive_test_1$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
thin_archive_test_2.log: thin_archive_test_2$(EXEEXT)
@ -4451,6 +4476,12 @@ uninstall-am:
@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(LINK) -Bgcctestdir/ -Wl,--gc-sections -Wl,-T,$(srcdir)/pr14265.t -o $@ $<
@GCC_TRUE@@NATIVE_LINKER_TRUE@pr14265.stdout: pr14265
@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(TEST_NM) --format=bsd --numeric-sort $< > $@
@GCC_TRUE@@NATIVE_LINKER_TRUE@gc_dynamic_list_test.o: gc_dynamic_list_test.c
@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(COMPILE) -c -ffunction-sections -o $@ $<
@GCC_TRUE@@NATIVE_LINKER_TRUE@gc_dynamic_list_test: gc_dynamic_list_test.o gcctestdir/ld $(srcdir)/gc_dynamic_list_test.t
@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(LINK) -Bgcctestdir/ -Wl,--gc-sections -Wl,--dynamic-list,$(srcdir)/gc_dynamic_list_test.t gc_dynamic_list_test.o
@GCC_TRUE@@NATIVE_LINKER_TRUE@gc_dynamic_list_test.stdout: gc_dynamic_list_test
@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(TEST_NM) gc_dynamic_list_test > $@
@GCC_TRUE@@NATIVE_LINKER_TRUE@icf_test.o: icf_test.cc
@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXCOMPILE) -O0 -c -ffunction-sections -g -o $@ $<
@GCC_TRUE@@NATIVE_LINKER_TRUE@icf_test: icf_test.o gcctestdir/ld
@ -4980,6 +5011,16 @@ uninstall-am:
@GCC_TRUE@@NATIVE_LINKER_TRUE@dynamic_list.stdout: dynamic_list
@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(TEST_READELF) -W --dyn-syms dynamic_list > dynamic_list.stdout
@GCC_TRUE@@NATIVE_LINKER_TRUE@dynamic_list_lib1.so: gcctestdir/ld dynamic_list_lib1.o
@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXLINK) -Bgcctestdir/ -shared dynamic_list_lib1.o
@GCC_TRUE@@NATIVE_LINKER_TRUE@dynamic_list_lib1.o: dynamic_list_lib1.cc
@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXCOMPILE) -c -fpic -o $@ $<
@GCC_TRUE@@NATIVE_LINKER_TRUE@dynamic_list_lib2.so: gcctestdir/ld dynamic_list_lib2.o $(srcdir)/dynamic_list_2.t
@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXLINK) -Bgcctestdir/ -shared -Wl,--dynamic-list,$(srcdir)/dynamic_list_2.t dynamic_list_lib2.o
@GCC_TRUE@@NATIVE_LINKER_TRUE@dynamic_list_lib2.o: dynamic_list_lib2.cc
@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXCOMPILE) -c -fpic -o $@ $<
@GCC_TRUE@@NATIVE_LINKER_TRUE@libthin1.a: thin_archive_test_1.o alt/thin_archive_test_2.o
@GCC_TRUE@@NATIVE_LINKER_TRUE@ rm -f $@
@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(TEST_AR) crT $@ $^

40
gold/testsuite/dynamic_list_2.cc Normal file
View File

@ -0,0 +1,40 @@
// dynamic_list_test_2.cc -- Test --dynamic-list with shared libraries.
// Copyright 2014 Free Software Foundation, Inc.
// Written by Cary Coutant <ccoutant@google.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.
// The goal of this program is to verify that the --dynamic-list option
// allows overrides for symbols listed in the file, and does symbolic
// binding for symbols not listed.
#include <cstring>
extern const char* test_foo();
extern const char* test_bar();
int
main(void)
{
if (strcmp(test_foo(), "override") != 0)
return 1;
if (strcmp(test_bar(), "original") != 0)
return 2;
return 0;
}

27
gold/testsuite/dynamic_list_2.t Normal file
View File

@ -0,0 +1,27 @@
/* dynamic_list_2.t -- script file for building dynamic_list_lib2.so.
Copyright 2014 Free Software Foundation, Inc.
Written by Cary Coutant <ccoutant@google.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. */
{
extern "C" {
"foo";
};
};

37
gold/testsuite/dynamic_list_lib1.cc Normal file
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@ -0,0 +1,37 @@
// dynamic_list_test_lib1.cc -- Test --dynamic-list with shared libraries.
// Copyright 2014 Free Software Foundation, Inc.
// Written by Cary Coutant <ccoutant@google.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.
// The goal of this program is to verify that the --dynamic-list option
// allows overrides for symbols listed in the file, and does symbolic
// binding for symbols not listed.
extern "C" const char*
foo()
{
return "override";
}
extern "C" const char*
bar()
{
return "override";
}

49
gold/testsuite/dynamic_list_lib2.cc Normal file
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@ -0,0 +1,49 @@
// dynamic_list_test_lib2.cc -- Test --dynamic-list with shared libraries.
// Copyright 2014 Free Software Foundation, Inc.
// Written by Cary Coutant <ccoutant@google.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.
// The goal of this program is to verify that the --dynamic-list option
// allows overrides for symbols listed in the file, and does symbolic
// binding for symbols not listed.
extern "C" const char*
foo()
{
return "original";
}
const char*
test_foo()
{
return foo();
}
extern "C" const char*
bar()
{
return "original";
}
const char*
test_bar()
{
return bar();
}

34
gold/testsuite/gc_dynamic_list_test.c Normal file
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@ -0,0 +1,34 @@
// gc_dynamic_list_test.cc -- Check that --gc-sections honors --dynamic-list.
// Copyright 2014 Free Software Foundation, Inc.
// Written by Cary Coutant <ccoutant@google.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.
// The goal of this program is to verify that the symbol "keep" is not
// garbage-collected when it is named in a --dynamic-list script.
extern void keep(void);
void
keep(void)
{}
int
main(void)
{ return 0; }

39
gold/testsuite/gc_dynamic_list_test.sh Executable file
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#!/bin/sh
# gc_comdat_test.sh -- test --gc-sections
# Copyright 2014 Free Software Foundation, Inc.
# Written by Cary Coutant <ccoutant@google.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.
# The goal of this program is to verify if comdat's and garbage
# collection work together. Files gc_comdat_test_1.cc and
# gc_comdat_test_2.cc are used in this test. This program checks
# if the kept comdat section is garbage collected.
check()
{
if ! grep -q "$2" "$1"
then
echo "Garbage collection should not have collected '$2'"
exit 1
fi
}
check gc_dynamic_list_test.stdout "keep"

25
gold/testsuite/gc_dynamic_list_test.t Normal file
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/* gc_dynamic_list_test.t -- script file for gc_dynamic_list_test.cc
Copyright 2014 Free Software Foundation, Inc.
Written by Cary Coutant <ccoutant@google.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. */
{
keep;
};