Commit the vtable verification feature. This feature is designed to
detect, at run time, if/when the vtable pointer in a C++ object has
been corrupted, before allowing virtual calls through that pointer.
If pointer corruption is detected, execution of the program is halted.
libstdc++-v3 ChangeLog:
2013-08-06 Caroline Tice <cmtice@google.com>
* fragment.am: Add XTEMPLATE_FLAGS.
* configure.ac: Add definitions for --enable-vtable-verify.
* acinclude.m4: Add --enable-vtable-verify and
--disable-vtable-verify; define --enable-vtable-verify; define
VTV_CXXFLAGS, VTV_PCH_CXXFLAGS and VTV_CXXLINKFLAGS.
* config/abi/pre/gnu.ver: Export symbols for vtable verification.
* libsupc++/Makefile.am: Define vtv_sources and add it to
libsupc___la_SOURCES and libsupc__convenience_la_SOURCES.
* libsupc++/vtv_stubs.cc: New file.
* include/Makefile.am: Add VTV_PCH_CXXFLAGS to PCHFLAGS.
* src/Makefile.am: Add VTV_CXXFLAGS to AM_CXXFLAGS; add
VTV_CXXLINKFLAGS to CXXLINK.
* src/c++98/Makefile.am: Comment out XTEMPLATE_FLAGS; add VTV_CXXFLAGS
to AM_CXXFLAGS; add VTV_CXXXLINKFLAGS to CXXLINK.
* src/C++11/Makefile.am: Ditto.
* doc/xml/manual/configure.xml: Add entry for --enable-vtable-verify.
* scripts/testsuite_flags.in: Add cxxvtvflags to Usage; cause
cxxvtvflags to use VTV_CXXFLAGS and VTV_CXXLINKFLAGS.
* testsuite/lib/libstdc++.exp: Add cxxvtvflags; add code to locate
libvtv if --enable-vtable-verify was used; set cxxvtvflags; add
cxxvtvflags to cxx_final.
* testsuite/18_support/bad_exception/23591_thread-1.c: Add
-fvtable-verify=none to compiler flags.
* testsuite/17_intro/freestanding.cc: Add -fvtable-verify=none
to compiler flags.
* configure: Regenerated.
* Makefile.in: Regenerated.
* python/Makefile.in: Regenerated.
* include/Makefile.in: Regenerated.
* libsupc++/Makefile.in: Regenerated.
* config.h.in: Regenerated.
* po/Makefile.in: Regenerated.
* src/Makefile.in: Regenerated.
* src/c++98/Makefile.in: Regenerated.
* src/c++11/Makefile.in: Regenerated.
* doc/Makefile.in: Regenerated.
* testsuite/Makefile.in: Regenerated.
top level ChangeLog:
2013-08-06 Caroline Tice <cmtice@google.com>
* configure.ac: Add target-libvtv to target_libraries; disable libvtv
on non-linux systems; add target-libvtv to noconfigdirs; add
libsupc++/.libs to C++ library search paths.
* configure: Regenerated.
* Makefile.def: Add libvtv to target_modules; make libvtv depend on
libstdc++ and libgcc.
* Makefile.in: Regenerated.
include/ChangeLog:
2013-08-06 Caroline Tice <cmtice@google.com>
* vtv-change-permission.h: New file.
contrib/ChangeLog:
2013-08-06 Caroline Tice4 <cmtice@google.com>
* gcc_update: Add libvtv files.
libgcc/ChangeLog:
2013-08-06 Caroline Tice <cmtice@google.com>
config.host (extra_parts): Add vtv_start.o, vtv_end.o
vtv_start_preinit.o and vtv_end_preinit.o.
configure.ac: Add code to check/set enable_vtable_verify.
Makefile.in: Add rules to build vtv_*.o, if enable_vtable_verify is
true.
vtv_start_preinit.c: New file.
vtv_end_preinit.c: New file.
vtv_start.c: New file.
vtv_end.c: New file.
configure: Regenerated.
gcc/ChangeLog:
2013-08-06 Caroline Tice <cmtice@google.com>
* gcc.c (VTABLE_VERIFICATION_SPEC): New definition.
(LINK_COMMAND_SPEC): Add VTABLE_VERIFICATION_SPEC.
* tree-pass.h: Add pass_vtable_verify.
* varasm.c (assemble_variable): Add code to properly set the comdat
section and name for the .vtable_map_vars section.
(assemble_vtyv_preinit_initializer): New function.
(default_sectin_type_flags): Make sure .vtable_map_vars section has
LINK_ONCE flag.
* output.h: Add function decl for assemble_vtv_preinit_initializer.
* vtable-verify.c: New file.
* vtable-verify.h: New file.
* flag-types.h (enum vtv_priority): Defintions for flag_vtable_verify
initialiation levels.
* timevar.def (TV_VTABLE_VERIFICATION): New definition.
* passes.def: Insert pass_vtable_verify.
* aclocal.m4: Reorder includes.
* doc/invoke.texi: Add documentation for the flags -fvtable-verify=,
-fvtv-debug and -fvtv-counts.
* config/gnu-user.h (GNU_USER_TARGET_STARTFILE_SPEC): Add vtv_start*.o,
as appropriate, if -fvtable-verify=... is used.
(GNU_USER_TARGET_ENDFILE_SPEC): Add vtv_end*.o as appropriate, if
-fvtable-verify=... is used.
* Makefile.in (OBJS): Add vtable-verify.o to list.
(vtable-verify.o): Add new build rule.
(GTFILES): Add vtable-verify.c to list.
* common.opt (fvtable-verify=): New flag.
(vtv_priority): Values for fvtable-verify= flag.
(fvtv-counts): New flag.
(fvtv-debug): New flag.
* tree.h (save_vtable_map_decl): New extern function decl.
gcc/cp/ChangeLog:
2013-08-06 Caroline Tice <cmtice@google.com>
* Make-lang.in (*CXX_AND_OBJCXX_OBJS): Add vtable-class-hierarchy.o to
list.
(vtable-class-hierarchy.o): Add build rule.
* cp-tree.h (vtv_start_verification_constructor_init_function): New
extern function decl.
(vtv_finish_verification_constructor_init_function): New extern
function decl.
(build_vtbl_address): New extern function decl.
(get_mangled_vtable_map_var_name): New extern function decl.
(vtv_compute_class_hierarchy_transitive_closure): New extern function
decl.
(vtv_generate_init_routine): New extern function decl.
(vtv_save_class_info): New extern function decl.
(vtv_recover_class_info): New extern function decl.
(vtv_build_vtable_verify_fndecl): New extern function decl.
* class.c (finish_struct_1): Add call to vtv_save_class_info if
flag_vtable_verify is true.
* config-lang.in: Add vtable-class-hierarchy.c to gtfiles list.
* vtable-class-hierarchy.c: New file.
* mangle.c (get_mangled_vtable_map_var_name): New function.
* decl2.c (start_objects): Update function comment.
(cp_write_global_declarations): Call vtv_recover_class_info,
vtv_compute_class_hierarchy_transitive_closure and
vtv_build_vtable_verify_fndecl, before calling
finalize_compilation_unit, and call vtv_generate_init_rount after, IFF
flag_vtable_verify is true.
(vtv_start_verification_constructor_init_function): New function.
(vtv_finish_verification_constructor_init_function): New function.
* init.c (build_vtbl_address): Remove static qualifier from function.
libvtv/ChangeLog:
2013-08-06 Caroline Tice <cmtice@google.com>
Initial check-in of new vtable verification feature.
* configure.ac : New file.
* acinclude.m4 : New file.
* Makefile.am : New file.
* aclocal.m4 : New file.
* configure.tgt : New file.
* configure: New file (generated).
* Makefile.in: New file (generated).
* vtv_set.h : New file.
* vtv_utils.cc : New file.
* vtv_utils.h : New file.
* vtv_malloc.cc : New file.
* vtv_rts.cc : New file.
* vtv_malloc.h : New file.
* vtv_rts.h : New file.
* vtv_fail.cc : New file.
* vtv_fail.h : New file.
* vtv_map.h : New file.
* scripts/run-testsuite.sh : New file.
* scripts/sum-vtv-counts.c : New file.
* testsuite/parts-test-main.h : New file.
* testusite/dataentry.cc : New file.
* testsuite/temp_deriv.cc : New file.
* testsuite/register_pair.cc : New file.
* testsuite/virtual_inheritance.cc : New file.
* testsuite/field-test.cc : New file.
* testsuite/nested_vcall_test.cc : New file.
* testsuite/template-list-iostream.cc : New file.
* testsuite/register_pair_inserts.cc : New file.
* testsuite/register_pair_inserts_mt.cc : New file.
* testsuite/event.list : New file.
* testsuite/parts-test-extra-parts-views.cc : New file.
* testsuite/parts-test-extra-parts-views.h : New file.
* testsuite/environment-fail-32.s : New file.
* testsuite/parts-test-extra-parts.h : New file.
* testsuite/temp_deriv2.cc : New file.
* testsuite/dlopen_mt.cc : New file.
* testsuite/event.h : New file.
* testsuite/template-list.cc : New file.
* testsuite/replace-fail.cc : New file.
* testsuite/Makefile.am : New file.
* testsuite/Makefile.in: New file (generated).
* testsuite/mempool_negative.c : New file.
* testsuite/parts-test-main.cc : New file.
* testsuite/event-private.cc : New file.
* testsuite/thunk.cc : New file.
* testsuite/event-defintiions.cc : New file.
* testsuite/event-private.h : New file.
* testsuite/parts-test.list : New file.
* testusite/register_pair_mt.cc : New file.
* testsuite/povray-derived.cc : New file.
* testsuite/event-main.cc : New file.
* testsuite/environment.cc : New file.
* testsuite/template-list2.cc : New file.
* testsuite/thunk_vtable_map_attack.cc : New file.
* testsuite/parts-test-extra-parts.cc : New file.
* testsuite/environment-fail-64.s : New file.
* testsuite/dlopen.cc : New file.
* testsuite/so.cc : New file.
* testsuite/temp_deriv3.cc : New file.
* testsuite/const_vtable.cc : New file.
* testsuite/mempool_positive.c : New file.
* testsuite/dup_name.cc : New file.
From-SVN: r201555
2013-08-01 François Dumont <fdumont@gcc.gnu.org>
PR libstdc++/57779
* include/debug/formatter.h (_Debug_msg_id): Add
__msg_insert_itself_range entry.
* include/debug/functions.h (_Insert_range_from_self_is_safe<>):
New, indicate container types supporting self range insertion in
GNU implementation.
(__foreign_iterator): New, check if an iterator points to a given
sequence.
* include/debug/macros.h (__glibcxx_check_insert_range): Add check
using __foreign_iterator.
(__gibcxx_check_insert_range_after): Likewise.
* include/debug/string (_Insert_range_from_self_is_safe<>):
Partially specialized to mark __gnu_debug::basic_string<> as
supporting self range insert.
* include/debug/list (_Insert_range_from_self_is_safe<>):
Partially specialized to mark std::list as supporting self range
insert if _GLIBCXX_DEBUG_PEDANTIC is not defined.
* include/debug/forward_list (_Insert_range_from_self_is_safe<>):
Likewise.
* src/c++11/debug.cc (_S_debug_messages): Add
__msg_insert_itself_range_entry message.
(_Error_formatter::_Parameter::_M_print_description): Display
iterator sequence address rather than sequence address when the
parameter type is an iterator.
(_Error_formatter::_M_print_word): Enhance behavior when
displaying a word with an appended '\n'.
* testsuite/util/debug/checks.h (check_insert4<>): New.
* testsuite/23_containers/deque/debug/insert5_neg.cc: New.
* testsuite/23_containers/vector/debug/insert5_neg.cc: Likewise.
* testsuite/23_containers/vector/debug/insert6_neg.cc: Likewise.
* testsuite/23_containers/vector/debug/57779_neg.cc: Likewise.
* testsuite/23_containers/list/debug/insert5_neg.cc: Likewise.
* testsuite/23_containers/forward_list/debug/insert_after4_neg.cc:
Likewise.
From-SVN: r201416
gcc/cp/
PR c++/54537
* cp-tree.h: Check OVL_USED with OVERLOAD_CHECK.
* name-lookup.c (do_nonmember_using_decl): Make sure we have an
OVERLOAD before calling OVL_USED. Call diagnose_name_conflict
instead of issuing an error without mentioning the conflicting
declaration.
libstdc++-v3/
PR c++/54537
* include/tr1/cmath: Remove pow(double,double) overload, remove a
duplicated comment about DR 550. Add a comment to explain the
issue.
* testsuite/tr1/8_c_compatibility/cmath/pow_cmath.cc: New.
gcc/testsuite/
PR c++/54537
* g++.dg/overload/using3.C: New.
* g++.dg/overload/using2.C: Adjust.
* g++.dg/lookup/using9.C: Likewise.
Co-Authored-By: Peter Bergner <bergner@vnet.ibm.com>
From-SVN: r201414
2013-07-31 Tim Shen <timshen91@gmail.com>
Thompson matcher refactored. Fix grouping problem.
* include/bits/regex.h: Use a dispatcher _M_get_matcher().
* include/bits/regex_compiler.h: Tweak for auto switching.
* include/bits/regex_grep_matcher.h: Class structure.
* include/bits/regex_grep_matcher.tcc: _BFSMatcher(Thompson
matcher) refactoring.
* include/bits/regex_nfa.h: Change _Results's interfaces.
* include/std/regex: Includes <map> and <queue>.
* testsuite/28_regex/algorithms/regex_match/extended/53622.cc:
For both matchers.
* testsuite/28_regex/algorithms/regex_match/extended/57173.cc:
For both matchers.
* testsuite/28_regex/algorithms/regex_match/extended/
string_dispatch_01.cc: New.
From-SVN: r201391
2013-07-31 Paolo Carlini <paolo.carlini@oracle.com>
PR libstdc++/56627
* include/bits/stl_bvector.h: Use friend struct hash intead of
friend class hash to work around useless warnings produced by
some compilers.
* include/std/bitset: Likewise.
From-SVN: r201377
2013-07-31 Paolo Carlini <paolo.carlini@oracle.com>
* src/c++11/functexcept.cc: Do not include the whole <regex>.
* src/c++11/regex.cc: Likewise.
From-SVN: r201369
2013-07-31 Tim Shen <timshen91@gmail.com>
Thompson matcher refactored. Fix grouping problem.
* include/bits/regex.h: Use a dispatcher _M_get_matcher().
* include/bits/regex_compiler.h: Tweak for auto switching.
* include/bits/regex_grep_matcher.h: Class structure.
* include/bits/regex_grep_matcher.tcc: _BFSMatcher(Thompson
matcher) refactoring.
* include/bits/regex_nfa.h: Change _Results's interfaces.
* include/std/regex: Includes <map> and <queue>.
* testsuite/28_regex/algorithms/regex_match/extended/53622.cc:
For both matchers.
* testsuite/28_regex/algorithms/regex_match/extended/57173.cc:
For both matchers.
* testsuite/28_regex/algorithms/regex_match/extended/
string_dispatch_01.cc: New.
From-SVN: r201358
2013-07-30 Tim Shen <timshen91@gmail.com>
Thompson matcher refactored. Fix grouping problem.
* include/bits/regex.h: Use a dispatcher _M_get_matcher().
* include/bits/regex_compiler.h: Tweak for auto switching.
* include/bits/regex_grep_matcher.h: Class structure.
* include/bits/regex_grep_matcher.tcc: _BFSMatcher(Thompson
matcher) refactoring.
* include/bits/regex_nfa.h: Change _Results's interfaces.
* include/std/regex: Includes <map> and <queue>.
* testsuite/28_regex/algorithms/regex_match/extended/53622.cc:
For both matchers.
* testsuite/28_regex/algorithms/regex_match/extended/57173.cc:
For both matchers.
* testsuite/28_regex/algorithms/regex_match/extended/string_dispatch_01.cc:
New.
From-SVN: r201334
2013-07-24 Paolo Carlini <paolo.carlini@oracle.com>
* include/bits/random.h (random_device): Avoid using the FILE type.
* include/std/random: Do not include <cstdio>.
* src/c++11/random.cc: ... include it here.
(random_device::_M_init, random_device::_M_fini,
random_device::_M_getval): Cast back and forth void* and FILE*.
From-SVN: r201215
2013-07-22 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/57920
* src/c++11/random.cc (random_device::_M_getval): If possible, use
read instead of std::fread.
* include/std/random: Do not include <cstdio> unnecessarily.
From-SVN: r201133
2013-07-05 François Dumont <fdumont@gcc.gnu.org>
* include/bits/hashtable_policy.h (_ReuseOrAllocNode): Use forward
pattern.
(_MoveReuseOrAllocNode): Remove.
(_Insert_base): Take a functor defining how the node is generated.
* include/bits/hashtable.h: Adapt.
(operator=(initializer_list<value_type>)): Reuse node if any.
* testsuite/23_containers/unordered_set/instantiation_neg.cc:
Adjust dg-error line number.
* testsuite/23_containers/unordered_set/
not_default_constructible_hash_neg.cc: Likewise.
From-SVN: r200724
