~cnx/klee - KLEE fork for patch differentiation testing

Age	Commit message (Collapse)	Author
2022-03-17	remove LLVM < 6 from build/test scripts	Frank Busse

2020-12-18	fix cflags for runtime build types	Julian Büning
	- `-DNDebug` -> `-DNDEBUG` - different flags for `Release{+Debug,}+Asserts` - `-g` is no longer part of common flags - `-D_DEBUG` is now only set for debug builds - removed unused `LIB_BC_FLAGS_{32,64}` - added example, architecture prefix for specific flags
2020-12-04	Only build 32bit runtime libraries if supported by platform	Martin Nowack
	Automatically detect if 32bit bitcode files can be built. In this case, build runtime library with 32bit as well.
2020-11-09	Added fortified library (for -D_FORTIFY_SOURCE), to be linked when uclibc is ↵	Cristian Cadar
	used.
2020-11-09	Since the runtime now contains fortified libc functions, it is important to ↵	Cristian Cadar
	compile it with -D_FORTIFY_SOURCE=0 to avoid infinite recursion.
2020-11-04	Rename FreeStanding to Freestanding where appropriate	Martin Nowack

2020-11-04	[cmake] Add support to generate arbitrary runtime library configurations	Martin Nowack
	Every runtime library can be build with multiple configurations. Replace the Makefile-based setup by cmake one. Currently, we generate 32bit and 64bit libraries simultaneously and can link against them.
2020-10-12	Exception handling only for LLVM >= 8.0.0	Julian Büning

2020-10-12	Implemented support for C++ Exceptions	Felix Rath
	We implement the Itanium ABI unwinding base-API, and leave the C++-specific parts to libcxxabi. Co-authored-by: Lukas Wölfer <lukas.woelfer@rwth-aachen.de>
2018-10-26	llvm5: test, add -disable-O0-optnone to -O0	Jiri Slaby
	Otherwise optimizations done in klee won't have any effect. Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
2018-07-04	Reorder linking and optimizations	Martin Nowack
	Link intrinsic library before executing optimizations. This makes sure that any optimization run by KLEE on the module is executed for the intrinsic library as well. Support .ll files as input for KLEE as well.
2018-07-04	Reorganise runtime libraries provided by KLEE	Martin Nowack
	Strictly differentiate between the following type of libraries: * FreeStanding: contains minimal amount of methods a compiler would expect * klee-libc: contains a minimal libc implementation * POSIX: contains a POSIX layer that can be used on top of a libc implementation * Intrinsic: contains additional runtime functions which provide KLEE-specific functionalities, (e.g. checks) Builds always archives instead of single modules. This allows to reduce linked-in dependencies of tested applications.
2017-10-04	[CMake] Add global clean target `clean_all`. Fixes #718.	Dan Liew
	This target invokes the `clean` target but is also intended for use by other cleaning targets. The `clean_runtime` target is now declared as a dependency of `clean-all` so that the runtime is cleaned as well.
2017-03-30	[CMake] Add the `clean_runtime` top level target to provide an easy way	Dan Liew
	to clean the runtime build. Unfortuantely there is no way to have the `clean` target trigger the `clean_runtime` target unfortunately.
2017-03-30	[CMake] When supported pass `USES_TERMINAL` argument to	Dan Liew
	`ExternalProject_Add_Step()` so that when using Ninja the output of the bitcode build system is shown immediately.
2017-02-11	[CMake] More widely available rebuilding for runtimes	Levente Kurusa
	Signed-off-by: Levente Kurusa <levex@linux.com>
2016-11-07	Implement a CMake based build system for KLEE.	Dan Liew
	This is based off intial work by @jirislaby in #481. However it has been substantially modified. Notably it includes a separate build sytem to build the runtimes which is inspired by the old build system. The reason for doing this is because CMake is not well suited for building the runtime: * CMake is configured to use the host compiler, not the bitcode compiler. These are not the same thing. * Building the runtime using `add_custom_command()` is flawed because we can't automatically get transitive depencies (i.e. header file dependencies) unless the CMake generator is makefiles. (See `IMPLICIT_DEPENDS` of `add_custom_command()` in CMake). So for now we have a very simple build system for building the runtimes. In the future we can replace this with something more sophisticated if we need it. Support for all features of the old build system are implemented apart from recording the git revision and showing it in the output of `klee --help`. Another notable change is the CMake build system works much better with LLVM installs which don't ship with testing tools. The build system will download the sources for `FileCheck` and `not` tools if the corresponding binaries aren't available and will build them. However `lit` (availabe via `pip install lit`) and GTest must already be installed. Apart from better support for testing a significant advantage of the new CMake build system compared to the existing "Autoconf/Makefile" build system is that it is not coupled to LLVM's build system (unlike the existing build system). This means that LLVM's autoconf/Makefiles don't need to be installed somewhere on the system. Currently all tests pass. Support has been implemented in TravisCI and the Dockerfile for building with CMake. The existing "Autoconf/Makefile" build system has been left intact and so both build systems can coexist for a short while. We should remove the old build system as soon as possible though because it creates an unnecessary maintance burden.