Introduce ToolChain::getSupportedSanitizers() that would return the set
of sanitizers available on given toolchain. By default, these are
sanitizers which don't necessarily require runtime support and are
not toolchain- or architecture-dependent.
Sanitizers (ASan, DFSan, TSan, MSan etc.) which cannot function
without runtime library are marked as supported only on platforms
for which we actually build these runtimes.
This would allow more fine-grained checks in the future: for instance,
we have to restrict availability of -fsanitize=vptr to Mac OS 10.9+
(PR23539).
Update test cases accrodingly: add tests for certain unsupported
configurations, remove test cases for -fsanitize=vptr + PS4
integration, as we don't build the runtime for PS4 at the moment.
This change was first submitted as r239953 and reverted in r239958.
The problem was and still is in Darwin toolchains, which get the
knowledge about target platform too late after initializaition, while
now we require this information when ToolChain::getSanitizerArgs() is
called. r240170 works around this issue.
llvm-svn: 240179
Summary:
Introduce ToolChain::getSupportedSanitizers() that would return the set
of sanitizers available on given toolchain. By default, these are
sanitizers which don't necessarily require runtime support (i.e.
set from -fsanitize=undefined-trap).
Sanitizers (ASan, DFSan, TSan, MSan etc.) which cannot function
without runtime library are marked as supported only on platforms
for which we actually build these runtimes.
This would allow more fine-grained checks in the future: for instance,
we have to restrict availability of -fsanitize=vptr to Mac OS 10.9+
(PR23539)
Update test cases accrodingly: add tests for certain unsupported
configurations, remove test cases for -fsanitize=vptr + PS4
integration, as we don't build the runtime for PS4 at the moment.
Test Plan: regression test suite
Reviewers: pcc
Subscribers: cfe-commits, filcab, eugenis, thakis, kubabrecka, emaste, rsmith
Differential Revision: http://reviews.llvm.org/D10467
llvm-svn: 239953
The object file format is sometimes overridden for MSVC targets to use
ELF instead of COFF. Make sure we preserve this choice when setting the
msvc version number in the triple.
llvm-svn: 239388
Encoding the version into the triple will allow us to communicate to
LLVM what functions it can expect to depend upon in the implementation.
llvm-svn: 239273
Now that SmallString is a first-class citizen, most SmallString::str()
calls are not required. This patch removes a whole bunch of them, yet
there are lots more.
There are two use cases where str() is really needed:
1) To use one of StringRef member functions which is not available in
SmallString.
2) To convert to std::string, as StringRef implicitly converts while
SmallString do not. We may wish to change this, but it may introduce
ambiguity.
llvm-svn: 232622
Using lld on Windows requires calling link-lld.exe instead of
lld.exe. This patch puts this knowledge into clang so that when
using the GCC style clang driver, it can properly delegate to
lld.
Differential Revision: http://reviews.llvm.org/D6428
Reviewed by: Reid Kleckner, Rui Ueyama
llvm-svn: 223086
When a user has not configured a standard Visual Studio environment
by running vcvarsall, clang tries its best to find Visual Studio
include files and executables anyway. This patch makes clang also
try to find system and Windows SDK libraries for linking against,
as well.
Reviewed by: Hans Wennborg
Differential Revision: http://reviews.llvm.org/D5873
llvm-svn: 220425
This resubmits change r220226. That change broke the chromium
build bots because chromium it ships an hermetic MSVC toolchain
that it expects clang to fallback to by finding it on the path.
This patch fixes the issue by bumping up the prioritization of PATH
when looking for MSVC binaries.
Reviewed by: Hans Wennborg, Reid Kleckner
Differential Revision: http://reviews.llvm.org/D5892
llvm-svn: 220424
This renames the Windows toolchain to MSVCToolChain. This is a preparatory step
for adding a CrossWindowsToolChain which uses clang/libc++/(ld/lld) without the
standard GCC toolchain lookup. NFC.
llvm-svn: 220362
Alexey Samsonov