The 2015-11-23 sanitizer merge from upstream lost the changes from
f6528435 to sanitizer_common/sanitizer_common_interceptors.inc, which
made use of _OBSTACK_SIZE_T. So the configury changes to define
_OBSTACK_SIZE_T don't do anything. This wasn't such a bad thing
anyway.. The configure test wrongly adds -I${srcdir}/../include,
effectively resulting in a test of libiberty/obstack rather than libc
obstack support, and it's the latter that asan and tsan need to work
with.
So, remove the useless configure test. Upstream santizer project has
been made aware of the problem if glibc obstack support is ever
updated. Bootsrapped etc. x86_64-linux and committed as obvious.
Revert 2015-11-09 Alan Modra <amodra@gmail.com>
* configure.ac: Don't substitute OBSTACK_DEFS.
* asan/Makefile.am: Remove OBSTACK_DEFS from DEFS.
* tsan/Makefile.am: Likewise.
* configure: Regenerate.
* Makefile.in: Regenerate.
* asan/Makefile.in: Regenerate.
* interception/Makefile.in: Regenerate.
* libbacktrace/Makefile.in: Regenerate.
* lsan/Makefile.in: Regenerate.
* sanitizer_common/Makefile.in: Regenerate.
* tsan/Makefile.in: Regenerate.
* ubsan/Makefile.in: Regenerate.
From-SVN: r238701
New obstack uses sensible types, size_t instead of int for length
params. Since libsanitizer does not use prototypes from obstack.h to
call the real functions, it's necessary to update the libsanitizer
function declarations emitted by the INTERCEPTOR macro.
* sanitizer_common/sanitizer_common_interceptors.inc: Update size
params for _obstack_begin_1, _obstack_begin, _obstack_newchunk
interceptors.
* configure.ac: Substitute OBSTACK_DEFS.
* asan/Makefile.am: Add OBSTACK_DEFS to DEFS.
* tsan/Makefile.am: Likewise.
* configure: Regenerate.
* Makefile.in: Regenerate.
* asan/Makefile.in: Regenerate.
* interception/Makefile.in: Regenerate.
* libbacktrace/Makefile.in: Regenerate.
* lsan/Makefile.in: Regenerate.
* sanitizer_common/Makefile.in: Regenerate.
* tsan/Makefile.in: Regenerate.
* ubsan/Makefile.in: Regenerate.
From-SVN: r229986
libsanitizer/
PR bootstrap/68041
* configure.ac (link_sanitizer_common): Link against librt only if it
contains shm_open, required by sanitizers.
(CXX_ABI_NEEDED): Remove variable.
* configure: Regenerate.
* ubsan/Makefile.am (libubsan_la_LIBADD): Do not add -lc++abi anymore.
* ubsan/Makefile.in: Regenerate.
From-SVN: r229168
PR sanitizer/67258
* ubsan/ubsan_type_hash.cc: Cherry pick upstream r244101.
Upstraem patch:
commit 1d2477faafda9ad2cc19927b3c31efd22747f013
Author: Alexey Samsonov <vonosmas@gmail.com>
Date: Wed Aug 5 19:35:46 2015 +0000
[UBSan] Fix UBSan-vptr false positive.
Offset from vptr to the start of most-derived object can actually
be positive in some virtual base class vtables.
Patch by Stephan Bergmann!
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@244101 91177308-0d34-0410-b5e6-96231b3b80d8
From-SVN: r227591
gcc/
* flag-types.h (enum sanitize_code): Add SANITIZE_NONNULL_ATTRIBUTE
and SANITIZE_RETURNS_NONNULL_ATTRIBUTE, or them into SANITIZE_UNDEFINED.
* opts.c (common_handle_option): Handle SANITIZE_NONNULL_ATTRIBUTE and
SANITIZE_RETURNS_NONNULL_ATTRIBUTE and disable
flag_delete_null_pointer_checks for them.
* sanitizer.def (BUILT_IN_UBSAN_HANDLE_NONNULL_ARG,
BUILT_IN_UBSAN_HANDLE_NONNULL_ARG_ABORT,
BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN,
BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN_ABORT): New.
* ubsan.c (instrument_bool_enum_load): Set *gsi back to
stmt's iterator.
(instrument_nonnull_arg, instrument_nonnull_return): New functions.
(pass_ubsan::gate): Return true even for SANITIZE_NONNULL_ATTRIBUTE
or SANITIZE_RETURNS_NONNULL_ATTRIBUTE.
(pass_ubsan::execute): Call instrument_nonnull_{arg,return}.
* doc/invoke.texi (-fsanitize=nonnull-attribute,
-fsanitize=returns-nonnull-attribute): Document.
gcc/testsuite/
* c-c++-common/ubsan/attrib-3.c: New test.
* c-c++-common/ubsan/nonnull-1.c: New test.
* c-c++-common/ubsan/nonnull-2.c: New test.
* c-c++-common/ubsan/nonnull-3.c: New test.
* c-c++-common/ubsan/nonnull-4.c: New test.
* c-c++-common/ubsan/nonnull-5.c: New test.
libsanitizer/
* ubsan/ubsan_handlers.cc, ubsan/ubsan_handlers.h: Cherry pick
upstream r215485, r217389, r217391 and r217400.
From-SVN: r215118
