Introduce -mllvm -sanitizer-coverage-8bit-counters=1
which adds imprecise thread-unfriendly 8-bit coverage counters.
The run-time library maps these 8-bit counters to 8-bit bitsets in the same way
AFL (http://lcamtuf.coredump.cx/afl/technical_details.txt) does:
counter values are divided into 8 ranges and based on the counter
value one of the bits in the bitset is set.
The AFL ranges are used here: 1, 2, 3, 4-7, 8-15, 16-31, 32-127, 128+.
These counters provide a search heuristic for single-threaded
coverage-guided fuzzers, we do not expect them to be useful for other purposes.
Depending on the value of -fsanitize-coverage=[123] flag,
these counters will be added to the function entry blocks (=1),
every basic block (=2), or every edge (=3).
Use these counters as an optional search heuristic in the Fuzzer library.
Add a test where this heuristic is critical.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231166 91177308-0d34-0410-b5e6-96231b3b80d8
This allows clang-cl to self-host cleanly with no magic setup
steps required.
After this patch, all you have to do is set CC=CXX=clang-cl and
run cmake -G Ninja.
These changes only exist to support C++ features which are
unsupported in clang-cl, so regardless of whether the user
specifies they want to use them, we still have to disable them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230539 91177308-0d34-0410-b5e6-96231b3b80d8
It is possible for the atomic routines to be provided by the compiler without
requiring any additional libraries. Check if that is the case before checking
for a library.
Patch by Matt Glazar!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230452 91177308-0d34-0410-b5e6-96231b3b80d8
This reverts commit r230062.
Debian stable (wheezy) ships still with cmake 2.8.9.
The commit broke my LLVM/Polly buildbot, to my knowledge our only Linux+cmake
buildbot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230343 91177308-0d34-0410-b5e6-96231b3b80d8
If we're using clang-cl, that's a pretty good indication that we're
going to use MSVC's STL.
This simplifies the clang-cl ninja self-host configuration down to:
CC=clang-cl CXX=clang-cl cmake .. -GNinja
Modified version of zturner's patch:
Differential Revision: http://reviews.llvm.org/D7824
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230239 91177308-0d34-0410-b5e6-96231b3b80d8
I was setting the python variable to "@HAVE_DIA_SDK@", which will
always be a string, and will always evaluate to True.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230163 91177308-0d34-0410-b5e6-96231b3b80d8
NOTE: This patch intentionally breaks the build. It attempts
to resubmit r230083, but with some debug logging in the CMake
and lit config files to determine why certain bots do not
correctly disable the DIA tests when DIA is not available.
After a sufficient number of bots fail, this patch will either
be reverted or, if the cause of the failure becomes obvious,
a fix submitted with the log statements removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230161 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
* add_llvm_tool and add_llvm_library now add install-${name} targets to install specific components
* added installhdrs target to install just the LLVM headers
* The above changes only apply for single-configuration generators (Ninja, Makefiles...), not for multi-configuration generators (Visual Studio, Xcode...)
Reviewers: pete
Reviewed By: pete
Subscribers: pete, llvm-commits
Differential Revision: http://reviews.llvm.org/D7619
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229727 91177308-0d34-0410-b5e6-96231b3b80d8
Instead of requiring MSVC 2013 U4, we simply warn users, since some might
not bt able to immediately upgrade.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229598 91177308-0d34-0410-b5e6-96231b3b80d8
Previous versions of MSVC 2013 would miscompile ASTMatchers (and/or their
tests). Bump up the requirement and make sure we know about the minor
revision.
Minimum required version found by Michael Edwards!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229584 91177308-0d34-0410-b5e6-96231b3b80d8
This is based on the discussions on: [LLVMdev] [RFC] Raising LLVM minimum required MSVC version to 2013 for trunk
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229320 91177308-0d34-0410-b5e6-96231b3b80d8
a gold binary explicitly. Substitute this binary into the tests rather
than just directly executing the 'ld' binary.
This should allow folks to inject a cross compiling gold binary, or in
my case to use a gold binary built and installed somewhere other than
/usr/bin/ld. It should also allow the tests to find 'ld.gold' so that
things work even if gold isn't the default on the system.
I've only stubbed out support in the makefile to preserve the existing
behavior with none of the fancy logic. If someone else wants to add
logic here, they're welcome to do so.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229251 91177308-0d34-0410-b5e6-96231b3b80d8
This is based on the discussions on: [LLVMdev] [RFC] Raising LLVM minimum required MSVC version to 2013 for trunk
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229185 91177308-0d34-0410-b5e6-96231b3b80d8
Since header files are not compilation units, CMake does not require
you to specify them in the CMakeLists.txt file. As a result, unless a
header file is explicitly added, CMake won't know about it, and when
generating IDE-based projects, CMake won't put the header files into
the IDE project. LLVM currently tries to deal with this in two ways:
1) It looks for all .h files that are in the project directory, and
adds those.
2) llvm_add_library() understands the ADDITIONAL_HEADERS argument,
which allows one to list an arbitrary list of headers.
This patch takes things one step further. It adds the ability for
llvm_add_library() to take an ADDITIONAL_HEADER_DIRS argument, which
will specify a list of folders which CMake will glob for header files.
Furthermore, it will glob not only for .h files, but also for .inc
files.
Included in this CL is an update to one of the existing users of
ADDITIONAL_HEADERS to use this new argument instead, to serve as an
illustration of how this cleans up the CMake.
The big advantage of this new approach is that until now, there was no
way for the IDE projects to locate the header files that are in the
include tree. In other words, if you are in, for example,
lib/DebugInfo/DWARF, the corresponding includes for this project will
be located under include/llvm/DebugInfo/DWARF. Now, in the
CMakeLists.txt for lib/DebugInfo/DWARF, you can simply write:
ADDITIONAL_HEADER_DIRS
../../include/llvm/DebugInfo/DWARF
as an argument to llvm_add_library(), and all header files will get
added to the IDE project.
Differential Revision: http://reviews.llvm.org/D7460
Reviewed By: Chris Bieneman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228670 91177308-0d34-0410-b5e6-96231b3b80d8
This allows all CMake projects, as well as C++ code, to detect if
and when DIA SDK is available for use so that we can enable the
DIA-based PDB reader implementation.
Differential Revision: http://reviews.llvm.org/D7457
Reviewed By: Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228669 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Handle LLVM_USE_SANITIZER=Address;Undefined to enable ASan and UBSan
If UBSan is compatible with more of the other sanitizers, maybe we should
deal with this in a better way where we allow combining UBSan with any of
the other sanitizers.
Reviewers: samsonov
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D7024
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228219 91177308-0d34-0410-b5e6-96231b3b80d8
This was added in r188351 to fix a naming conflict between the
profile_rt-static and profile_rt-shared who both ended up in
lib/profile_rt.lib.
The change also affected other libraries (like libclang), and
users are reporting that they find it surprising that there's
no longer a libclang.lib. Since the profile_rt naming conflict
doesn't seem to exist any more, I think we can remove this.
Differential Revision: http://reviews.llvm.org/D7391
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228049 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
When LLVM_USE_SANITIZE_COVERAGE=YES
and one of the sanitizers is used -fsanitize-coverage=3 will be added
to build flag. This will be used to run a coverage-guided fuzzer on various
llvm libraries.
Test Plan: n/a
Reviewers: rnk
Reviewed By: rnk
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D7116
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227216 91177308-0d34-0410-b5e6-96231b3b80d8
Should make the tests run when using CMake on systems where 'uname -p'
reports "amd64", such as FreeBSD.
Should fix PR21559.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226937 91177308-0d34-0410-b5e6-96231b3b80d8
ELF linkers by default allow shared libraries to contain undefined references
and it is up to the dynamic linker to look for them.
On COFF and MachO, that is not the case.
This creates a situation where a .so might build on an ELF system, but the build
of the corresponding .dylib or .dll will fail.
This patch changes the cmake build to use -Wl,-z,defs when linking and updates
the dependencies so that -DBUILD_SHARED_LIBS=ON build still works.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226611 91177308-0d34-0410-b5e6-96231b3b80d8
As a result, installations of LLVM in non-standard locations
will not require passing custom -ccopt -L flags when building
the binary, nor absolute paths would be embedded in the cma/cmxa
files. Additionally, the executables will not require changes
to LD_LIBRARY_PATH, although CAML_LD_LIBRARY_PATH still
has to be set for ocamlc without -custom.
See http://caml.inria.fr/mantis/view.php?id=6642.
Note that the patch is approved, but not merged yet.
It will be released in 4.03 and likely 4.02.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225778 91177308-0d34-0410-b5e6-96231b3b80d8
Add the missing `DEPENDS` keyword. r225319 did almost the right thing
(I didn't notice the problem with it because `Kaleidoscope-Ch8` wasn't
building at all).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225321 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
This in turn allows us to use #includes with cgo that rely on CMake
provided include directories which is particularly useful for handling
generated headers that aren't reasonable to put in an "installable"
location.
Differential Revision: http://reviews.llvm.org/D6798
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224962 91177308-0d34-0410-b5e6-96231b3b80d8
that is used by other projects to build against LLVM. This will allow
subsequent patches to them to use LLVM_LIBDIR_SUFFIX, both when built as
part of the larger LLVM build an as part of a standalone build against
an installed set of LLVM libraries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224920 91177308-0d34-0410-b5e6-96231b3b80d8
