• ctice's avatar
    Commit the vtable verification feature. This feature is designed to · b710ec85
    ctice authored
    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.
    
    
    
    
    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@201555 138bc75d-0d04-0410-961f-82ee72b054a4
    b710ec85
ChangeLog 30.6 KB