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
* configure.ac: Check for __cxa_thread_atexit_impl.
* libsupc++/atexit_thread.cc (__cxa_thread_atexit): Just forward
to it if available.
* config.h.in, configure: Regenerate.
From-SVN: r196276
2011-10-14 Jonathan Yong <jon_y@users.sourceforge.net>
* configure.host: Use config/os/mingw32-w64 instead of
config/os/mingw32 if vendor key is "w64".
* config/os/mingw32-w64: Duplicate from config/os/mingw32.
* config/os/mingw32-w64/os_defines.h: Enable
_GLIBCXX_FULLY_DYNAMIC_STRING if undefined.
* acinclude.m4: Set fully-dynamic-string to 1 when enabled,
0 when disabled or undefined if unset by user.
* include/bits/basic_string.h: Check if
_GLIBCXX_FULLY_DYNAMIC_STRING is set to 0 instead of undefined.
include/bits/basic_string.tcc: Likewise.
* configure: Regenerated.
* config.h.in: Likewise.
From-SVN: r179961
/gcc
2011-07-15 Paolo Carlini <paolo.carlini@oracle.com>
Jakub Jelinek <jakub@redhat.com>
Jonathan Wakely <jwakely.gcc@gmail.com>
PR libstdc++/49745
* gthr-posix.h: Do not include <unistd.h> unconditionally; use
_GTHREADS_USE_MUTEX_TIMEDLOCK instead of _POSIX_TIMEOUTS.
/libstdc++-v3
2011-07-15 Paolo Carlini <paolo.carlini@oracle.com>
Jakub Jelinek <jakub@redhat.com>
PR libstdc++/49745
* acinclude.m4 ([GLIBCXX_CHECK_GTHREADS]): Check separately for
_POSIX_TIMEOUTS and define _GTHREADS_USE_MUTEX_TIMEDLOCK.
* libstdc++-v3/libsupc++/guard.cc: Include <unistd.h>.
* testsuite/17_intro/headers/c++1998/49745.cc: New.
* configure: Regenerate.
* config.h.in: Likewise.
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
Co-Authored-By: Jonathan Wakely <jwakely.gcc@gmail.com>
From-SVN: r176335
config:
* gc++filt.m4: New file.
contrib:
* make_sunver.pl: New file.
libstdc++v3:
* acinclude.m4 (GLIBCXX_ENABLE_SYMVERS): Handle sun style.
Require GCC_PROG_GNU_CXXFILT.
(_GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT): Define
unless targetting solaris2*.
Include ../config/gc++filt.m4.
* configure.host (i?86-*-solaris2*): Set abi_baseline_pair.
(sparc-*-solaris2*): Likewise.
* src/Makefile.am [ENABLE_SYMVERS_SUN] (version_dep, version_arg):
New variables.
(libstdc++-symbols.ver-sun): New target.
* configure: Regenerate.
* config.h.in: Regenerate.
* Makefile.in: Likewise.
* doc/Makefile.in: Likewise.
* include/Makefile.in: Likewise.
* libsupc++/Makefile.in: Likewise.
* po/Makefile.in: Likewise.
* python/Makefile.in: Likewise.
* src/Makefile.in: Likewise.
* src/atomic.cc: Only define/use _GLIBCXX_ASM_SYMVER if
_GLIBCXX_HAVE_SYMVER_RENAMING_RUNTIME_SUPPORT.
* src/compatibility.cc: Likewise.
* testsuite/Makefile.am (baseline_subdir): Define.
(baseline_symbols): Use it.
(new-abi-baseline): Likewise.
* testsuite/Makefile.in: Regenerate.
* config/abi/pre/gnu.ver (GLIBCXX_3.4.5): Enclose duplicates in
#ifdef HAVE_SYMVER_RENAMING_RUNTIME_SUPPORT.
(GLIBCXX_3.4.6): Likewise.
* doc/xml/manual/configure.xml (--enable-symvers): Document sun
style.
* doc/xml/manual/abi.xml: Fix grammar.
(Symbol versioning on the libstdc++.so binary): Fix mapfile path.
(Incremental bumping of a library pre-defined macro): Fix
c++config path.
(Incremental bumping of a library pre-defined macro,
_GLIBCPP_VERSION): Likewise.
(Matching each specific C++ compiler release to a specific set of
C++ include files): Fix acinclude.m4 path.
(Prerequisites): Allow for Sun linker on Solaris 2.5+.
Use proper link to Configuring.
Fix acinclude.m4 path.
(Checking Active): Allow for additional symbol versioning styles.
Provide Solaris 2 example with pvs -r.
(Bibliography): Update Linker and Libraries Guide, C++ Migration
Guide entries.
gcc:
* doc/install.texi (Prerequisites): Document Perl requirement on
Solaris 2.
(Specific, *-*-solaris2*): Document GNU c++filt requirement.
From-SVN: r161696
2009-10-05 Benjamin Kosnik <bkoz@redhat.com>
Edward Smith-Rowland <3dw4rd@verizon.net>
* include/decimal/decimal: Warn if decimal floating point types
are not available.
* acinclude.m4 (GLIBCXX_ENABLE_DECIMAL_FLOAT): New.
* configure.ac: Use it.
* configure: Regenerate.
* config.h.in: Regenerate.
2009-10-05 Benjamin Kosnik <bkoz@redhat.com>
* include/Makefile.am: Remove stray line break.
* include/decimal/decimal: Brief class doxygen markup.
* libsupc++/exception: Whitespace cleanup.
* testsuite/libstdc++-dg/conformance.exp: Add testsuite directory
decimal.
* scripts/create_testsuite_files (dlist): Same.
* doc/xml/manual/using.xml: One column in table. Move after TR1.
* testsuite/decimal/bad-cast.cc: Move to...
* testsuite/decimal/cast_neg.cc: ...here.
* testsuite/decimal/bad-mixed-mode.cc: Move to...
* testsuite/decimal/mixed-mode_neg.cc: ...here.
* testsuite/decimal/bad-operator.cc: Move to...
* testsuite/decimal/operator_neg.cc: ...here.
* doc/doxygen/user.cfg.in (INPUT): Add decimal/decimal.
2009-10-05 Janis Johnson <janis187@us.ibm.com>
* doc/Makefile.am: Process new file.
* doc/xml/manual/intro.xml: Ditto.
* doc/xml/manual/using.xml: Document new header.
* doc/xml/manual/status_cxxdecimal.xml: New file.
* include/Makefile.am: Process new headers.
* include/decimal/decimal: New file.
* include/decimal/decimal.h: New file.
2009-10-05 Janis Johnson <janis187@us.ibm.com>
* testsuite/decimal: New directory.
* testsuite/decimal/bad-cast.cc: New test.
* testsuite/decimal/bad-mixed-mode.cc: New test.
* testsuite/decimal/bad-operator.cc: New test.
* testsuite/decimal/binary-arith.cc: New test.
* testsuite/decimal/comparison.cc: New test.
* testsuite/decimal/compound-assignment.cc: New test.
* testsuite/decimal/compound-assignment-memfunc.cc: New test.
* testsuite/decimal/conversion-from-float.cc: New test.
* testsuite/decimal/conversion-from-integral.cc: New test.
* testsuite/decimal/conversion-to-generic-float.cc: New test.
* testsuite/decimal/conversion-to-integral.cc: New test.
* testsuite/decimal/ctor.cc: New test.
* testsuite/decimal/incdec.cc: New test.
* testsuite/decimal/incdec-memfunc.cc: New test.
* testsuite/decimal/make-decimal.cc: New test.
* testsuite/decimal/unary-arith.cc: New test.
From-SVN: r152457
2008-08-28 Chris Fairles <chris.fairles@gmail.com>
* acinclude.m4 ([GLIBCXX_CHECK_GTHREADS]): New. Checks for gthread
support used by c++0x thread library.
* configure.ac: Test unconditionally.
* configure: Regenerate.
* config.h.in: Regenerate.
From-SVN: r139705
2008-08-23 Paolo Carlini <paolo.carlini@oracle.com>
* acinclude.m4 ([GLIBCXX_CHECK_GETTIMEOFDAY]): Change to use
GCC_TRY_COMPILE_OR_LINK.
([GLIBCXX_CHECK_CLOCK_GETTIME]): Rename to
[GLIBCXX_ENABLE_CLOCK_GETTIME], a versatile configure-time option,
[no] by default, since it includes TRY_LINK checks. librt is also
searched, if requested.
* doc/xml/manual/configure.xml: Document the latter.
* configure.ac: Move the above checks outside native-only.
* configure: Regenerate.
From-SVN: r139576
2008-08-24 Paolo Carlini <paolo.carlini@oracle.com>
* acinclude.m4 ([GLIBCXX_CHECK_RANDOM_TR1]): Simplify, just use
two test -r instead of an AC_TRY_RUN.
* configure: Regenerate.
* config.h.in: Likewise.
From-SVN: r139549
2008-08-06 Paolo Carlini <paolo.carlini@oracle.com>
* acinclude.m4 ([GLIBCXX_CHECK_INT64_T]): Also check whether int64_t
is actually a typedef to long or long long.
* include/bits/postypes.h: If int64_t is actually a typedef for
long or long long don't include <stdint.h> unnecessarily.
* configure: Regenerate.
* config.h.in: Likewise.
From-SVN: r138797
* configure.ac: Do not check for gconv.h.
* crossconfig.m4 (GLIBCXX_CROSSCONFIG): Do not test for gconv.h or
gconf.h. For glibc and uClibc systems, define
_GLIBCXX_USE_RANDOM_TR1 and HAVE_MMAP and use AC_LC_MESSAGES and
AM_ICONV.
* configure, config.h.in: Regenerate.
From-SVN: r136494
2008-04-24 Benjamin Kosnik <bkoz@redhat.com>
* acinclude.m4 (GLIBCXX_ENABLE_ATOMIC_BUILTINS): Check for set of
all used __sync builtins, in two sizes.
* config.h.in: Regenerate.
* configure: Regenerate.
* src/atomic.cc: Use _GLIBCXX_ATOMIC_BUILTINS_1.
* include/ext/atomicity.h: Use _GLIBCXX_ATOMIC_BUILTINS_4.
* libsupc++/guard.cc: Use _GLIBCXX_ATOMIC_BUILTINS_4.
* doc/xml/manual/concurrency.xm: Update docs.
From-SVN: r134629
2008-04-23 Benjamin Kosnik <bkoz@redhat.com>
* config/os/hpux/os_defines.h: Use _GLIBCXX_BEGIN_NAMESPACE,
_GLIBCXX_BEGIN_EXTERN_C, etc.
From-SVN: r134607
