Old version of sem_init (GLIBC_2.0) fails to initialize parts of
sem_t that are used in sem_timedwait. This is fixed in GLIBC_2.1,
but since ASan interceptors downgrade sem_* to the oldest available
version, this can introduce bugs that are only present in sanitized
build. Workaround by zero-initializing sem_t in sem_init.
llvm-svn: 250113
Revert once more. This seems to fail to build on the buildbots which build with
ninja rather than MSBuild/Visual Studio. This requires further build
infrastructure changes to deal with the assembly routines.
llvm-svn: 250001
__inline is a vendor specific spelling for inline. clang and gcc treat it the
same as inline, and is available in MSVC 2013 which does not implement C99
(VS2015 supports the inline keyword though). This will allow us to build the
builtins using MSVC.
llvm-svn: 249953
CMake build rules listed -I flags for two different libc++ header
locations which broke when libc++ headers started using include_next.
Also change -I to -isystem to avoid compiler warning about
include_next.
llvm-svn: 249759
This is an implementation of
https://github.com/google/sanitizers/issues/579
It has a number of advantages over the current mapping:
* Works for non-PIE executables.
* Does not require ASLR; as a consequence, debugging MSan programs in
gdb no longer requires "set disable-randomization off".
* Supports linux kernels >=4.1.2.
* The code is marginally faster and smaller.
This is an ABI break. We never really promised ABI stability, but
this patch includes a courtesy escape hatch: a compile-time macro
that reverts back to the old mapping layout.
llvm-svn: 249754
Summary:
Since r223145 we don't include sanitizer_allocator_internal.h into
sanitizer_symbolizer.h, so we can have undefined reference to
Internal{Alloc, Free} stuff into sanitizer_symbolizer_libbacktrace.cc under
SANITIZER_CP_DEMANGLE macro.
This patch simply includes appropriate header into
sanitizer_symbolizer_libbacktrace.h to resolve the issue.
Patch by Maxim Ostapenko!
Reviewers: kcc, eugenis, samsonov
Subscribers: llvm-commits, ygribov
Differential Revision: http://reviews.llvm.org/D13429
llvm-svn: 249633
cl does not support the same intrinsics as clang. Provide implementations for
the intrinsics using MSVC builtins.
Patch by Tee Hao Wei!
llvm-svn: 249515
Unfortunately, int_utils.h needs to depend on int_lib for the common macro
definitions. However, currently, int_utils.h is included by int_lib.h. Reorder
the inclusion to work around this.
llvm-svn: 249376
Summary: This is the Makefile analog of r247833, except that the test also had to be changed such that clang actually attempts to link the program as opposed to just building it. Because of that change, I also switched the order to checking for ld/clang architecture support, because now lack of ld support would make the clang check fail. This fixes PR24776.
Reviewers: beanz
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D13425
llvm-svn: 249358
This patch add support for leak sanitizer for aarch64. Similar to
MIPS it uses a SizeClassAllocator32 due VMA constraints (aarch64
currently supports 39 and 42-bit VMA).
llvm-svn: 249337
Evgeniy Stepanov