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2024-02-08Add support for opaque pointersMartin Nowack
2024-02-08Explicitly enable opaque pointer support for LLVM 15Martin Nowack
This automatically lifts old-style pointers to opaque pointers. More recent versions use opaque pointers automatically and do not need an explicit enabling.
2024-02-08Explicitly build KLEE's exception handling runtime with C++11Martin Nowack
Currently, we assume C++11 support being used to by the tested software. This needs to change if newer C++ standards should be supported.
2024-02-08Assume C compiler's default standard is `-std=gnu17`Martin Nowack
Newer compilers use `-std=gnu17` as the default when compiling C code. Fix all the test cases that violate this behaviour or explicitly request older standards `-std=c89` where necessary.
2024-02-08Use KLEE's uClibc v1.4 as default to support the compilation with newer ↵Martin Nowack
compilers
2024-02-08Refactor invocation of old pass manager into legacy functionMartin Nowack
2024-02-08Fix `klee_eh_cxx.cpp` compiler errorMartin Nowack
2024-02-08Fix `klee-libc/memchr.c` compiler warningMartin Nowack
2024-02-08Replace `%libcxx_include` with `%libcxx_includes` for multi-include directoriesMartin Nowack
To support multiple include directories for c++ header files, use `%libcxx_includes`. This string contains the `-I` compiler directive for each include path as well. Update test cases to use new directive.
2024-02-08Add support for newer `libc++`; Simplify path detectionMartin Nowack
`libc++` include headers are now split between platform dependent and platform independent code. Before, only include files for the platform independent code were considered. Add support to automatically find platform dependent includes as well. Simplify the detection of libraries and paths. Instead of pointing to the `v1` directory, pointing to the include directory for `-DKLEE_LIBCXX_INCLUDE_PATH` is enough. Update build script to support this as well.
2024-02-08MERGE libc++ build systemMartin Nowack
2024-02-08Add support to build newer LLVM versionsMartin Nowack
`-DLLVM_ENABLE_PROJECTS` does not include runtimes anymore, instead a `-DLLVM_ENABLE_RUNTIMES` should be used in addition
2024-01-30Change `GetConstraintLog` to work with `std::string`s instead of `char*`sDaniel Schemmel
2024-01-30Avoid generating array names in solver builders that could accidently collideMartin Nowack
If an array name ended with a number, adding a number-only suffix could generate the same name used as part of the solvers. In the specific testcase `val_1` became solver array `val_111` which collided with array `val_11` that became `val_111` as well. Using an `_` as prefix for the suffix, solves that problem in general, i.e. `val_1` becomes `val_1_11` and `val_11` becomes `val_11_1`. Fixes #1668
2024-01-30Modify getValueFromSeeds() to include more functionality and simplify its ↵Cristian Cadar
callers
2024-01-30Make Assignment::evaluate be constCristian Cadar
2024-01-30Add checks to the seed concretization tests about the expected number of queriesCristian Cadar
2024-01-30Added a test for --allow-seed-extensionCristian Cadar
2024-01-30Removed --zero-seed-extension, and merge it with --allow-seed-extension. ↵Cristian Cadar
This reworked logic also fixes a buffer overflow which could be triggered during seed extension.
2024-01-30Refactored some code related to seeding.Cristian Cadar
2024-01-30On a symbolic allocation, retrieve size from a seed, if availableCristian Cadar
2024-01-30Concretize arguments to external function calls using seeds, if available. ↵Cristian Cadar
Added a test case.
2024-01-30Concretize constants using seed values, when available. Added two tests (w/ ↵Cristian Cadar
and w/o seed extension) based on FP concretization.
2024-01-30Switch to FreeBSD 14 and 13.2; Use LLVM 13Martin Nowack
2024-01-12Remove check for the number of solver queriesTomasz Kuchta
2024-01-12Make test more deterministicTomasz Kuchta
2024-01-12Follow-up: applied review comments, implemented meta-data cleanup (one more ↵Tomasz Kuchta
map added to ExecutionState); now storing addresses of MemoryObjects for easier cleanup
2024-01-12Feature: implement single memory object resolution for symbolic addresses.Tomasz Kuchta
This feature implements tracking of and resolution of memory objects in the presence of symbolic addresses. For example, an expression like the following: int x; klee_make_symbolic(&x, sizeof(x), "x"); int* tmp = &b.y[x].z; For a concrete array object "y", which is a member of struct "b", a symbolic offset "x" would normally be resolved to any matching memory object - including the ones outside of the object "b". This behaviour is consistent with symbex approach of exploring all execution paths. However, from the point of view of security testing, we would only be interested to know if we are still in-bounds or there is a buffer overflow. The implemented feature creates and tracks (via the GEP instruction) the mapping between the current symbolic offset and the base object it refers to: in our example we are able to tell that the reference should happen within the object "b" (as the array "y" is inside the same memory blob). As a result, we are able to minimize the symbolic exploration to only two paths: one within the bounds of "b", the other with a buffer overflow bug. The feature is turned on via the single-object-resolution command line flag. A new test case was implemented to illustrate how the feature works.
2024-01-12Renamed PTree to ExecutionTree (and similar)Cristian Cadar
2024-01-12Rename files from PTree to ExecutionTree (and similar)Cristian Cadar
2024-01-12SearcherTest: remove redundant root init, fix branch typeFrank Busse
2024-01-12new: persistent ptree (-write-ptree) and klee-ptreeFrank Busse
Introduce three different kinds of process trees: 1. Noop: does nothing (e.g. no allocations for DFS) 2. InMemory: same behaviour as before (e.g. RandomPathSearcher) 3. Persistent: similar to InMemory but writes nodes to ptree.db and tracks information such as branch type, termination type or source location (asm) in nodes. Enabled with -write-ptree ptree.db files can be analysed/plotted with the new "klee-ptree" tool.
2023-10-23replace deprecated (as of c++20) std::is_pod with std::trivial && ↵Daniel Schemmel
std::is_standard_layout
2023-09-11Make KDAlloc the default memory allocatorCristian Cadar
2023-09-11Changed use-after-free and double-free tests to expect KDAlloc, plus some ↵Cristian Cadar
small improvements.
2023-09-07Remove broken experimental optimisation for validity (--cex-cache-exp)Cristian Cadar
2023-07-21Add code to only keep in the --help menu the KLEE/Kleaver option categoriesCristian Cadar
2023-07-21Move some options to the klee namespace and declare them in OptionCategories.hCristian Cadar
2023-07-12Replaced --suppress-external-warnings and --all-external-warnings with ↵Cristian Cadar
--external-call-warnings=none|once-per-function|all. This eliminates the ambiguity when both of the old options were set. Added test for the new option.
2023-07-10remove timings from kdalloc testsDaniel Schemmel
2023-07-10Simplify KDAlloc testsDaniel Schemmel
2023-07-08Combine all `ConstantExpr::toMemory` cases into one.Daniel Schemmel
Note that (as it did previously), this relies on the native types having the same internal representation as the ApInt type.
2023-07-08Using std::memcpy prevents alignment problems and removes an unnecessary ↵Daniel Schemmel
special case
2023-07-06Implement getLocationInfo in the same style as getSizeDaniel Schemmel
2023-07-06Have CoWPtr::get and CoWPtr::getOwned return pointers instead of referencesDaniel Schemmel
2023-07-06rename Allocator::location_info to Allocator::locationInfo forDaniel Schemmel
consistency
2023-07-06Perform location_info tests in KDAlloc's random testDaniel Schemmel
2023-06-26RefTest: suppress -Wself-moveJulian Büning
This warning (introduced with GCC 13, also present in clang) warns precisely about what we want to test here.
2023-06-26Consistently use ".ktest" when referring to .ktest files in the help menuCristian Cadar
2023-06-26Remove parentheses around klee_ intrinsics from the help menuCristian Cadar