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Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
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indentation and syntax highlighting.
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This is useful for testing ranges. Especially when tests are run on
later LLVM versions.
This code is funny as it uses 2, 3, and 4 spaces for indentation :).
This is extensively used in #605.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
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test: POSIX, stop FD_Fail to fail
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In our build environments, /etc/fstab is an empty file. Use /etc/mtab,
which should be non-empty anywhere, hopefully.
For the reference, the test fails as follows:
FAIL: KLEE :: Runtime/POSIX/FD_Fail.c (188 of 212)
************ TEST 'KLEE :: Runtime/POSIX/FD_Fail.c' FAILED ************
Script:
--
clang-3.8 -Iinclude test/Runtime/POSIX/FD_Fail.c -emit-llvm -O0 -c -o build/test/Runtime/POSIX/Output/FD_Fail.c.tmp1.bc
rm -rf build/test/Runtime/POSIX/Output/FD_Fail.c.tmp.klee-out
build/bin/klee --output-dir=build/test/Runtime/POSIX/Output/FD_Fail.c.tmp.klee-out --libc=uclibc --posix-runtime build/test/Runtime/POSIX/Output/FD_Fail.c.tmp1.bc --sym-files 0 0 --max-fail 1 > build/test/Runtime/POSIX/Output/FD_Fail.c.tmp.log
grep -q "fread(): ok" build/test/Runtime/POSIX/Output/FD_Fail.c.tmp.log
grep -q "fread(): fail" build/test/Runtime/POSIX/Output/FD_Fail.c.tmp.log
grep -q "fclose(): ok" build/test/Runtime/POSIX/Output/FD_Fail.c.tmp.log
grep -q "fclose(): fail" build/test/Runtime/POSIX/Output/FD_Fail.c.tmp.log
--
Exit Code: 1
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
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There was a typo and 'not' utility was tried to be built with
FileCheck's libraries. But those can be undefined. Fix this by using the
correct variable.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
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Rewritten tests by replacing 'XFAIL: darwin' with 'REQUIRES: not-darwin'
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'not-*' features that exist if target operating system does not match a list of know operating systems.
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test: ConstantExpr, kill bogus test
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There is a test that thinks this should hold:
((&gInt >> 8) << 8) != ((&gInt << 8) >> 8)
For example, if the address is 0x00123400, this means:
0x00123400 != 0x00123400
which is obviously not true. Kill the bogus assumption as it causes
occasional failures in the tests. This is done by ORing the address with
1 so that we can have:
0x00123400 != 0x00123401
Convert also the respective truncated 32bit pointers to 64bit.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
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* remove unused stat variable
* use %ld for long int
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
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Added new option --warnings-only-to-file which causes warnings to be written to warnings.txt only.
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variables when possible.
Previously an alignment 8 was always used which did not faithfully
emulate what was either explicitly requested in the LLVM IR or what
the default alignment was for the target.
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`klee::getDirectCallTarget(llvm::CallSite)`.
The problem is that it doesn't handle bitcasted functions that call a
weak alias.
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ReadExpr::create() was missing an opportunity to constant fold
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constant arrays.
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Modify scripts and a test to allow ASan/UBSan builds.
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The helper function had int return type, while no value was being
returned.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
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when using the native compiler in system tests.
This fixes the `libkleeruntest` tests when building with ASan.
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targets from Autoconf/Makefile build system. Having these around
just confuses things.
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* lit tests are run by the `systemtests` target
* The `check` target runs the `systemtests` and `unittests` target
This make its target names consistent with the CMake build system.
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This was a proposal from #500.
@andreamattavelli pointed out that the lit tests are really
system tests rather than integration tests so this commit fixes
the inappropriate naming that I chose.
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Previously error messages would be emitted but execution would continue
which might not be desirable.
Now a wrapper function (for fprintf) `report_internal_error()` is used
which will cause the program to exit. The older behaviour of continuing
to execute after an error can be achieved by setting a new environment
variable `KLEE_RUN_TEST_ERRORS_NON_FATAL`.
This commit also adds a test for each error case.
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If KLEE generates ktest files with `--posix-runtime` then if replaying
using libkleeRuntest then replay would be incorrect because the
`model_version` object would be unintentionally used during replay.
For now just skip over that object and try the next one.
Also emit a warning if the object names don't match.
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test is marked XFAIL because there is a bug in the implementation
of `libkleeRuntest`.
Quite a few changes had to be made to the lit configuration in
order to support these tests.
To run the tests I had to fix #480 for the autoconf/Makefile build
system otherwise the `libkleeRuntest` library would not be found
by the system linker at runtime.
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Brings llvm-ar into line with llvm-as and lli, removing the assumption that
llvm-ar is installed system wide
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For performance reasons, if KLEE branches, one state is reused
and it is progressed by adding new constraints.
Make sure both new states end up at the end of the BFS searcher queue.
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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.
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Extended support for assembler raising
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function) (#455)
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POSIX runtime. If the check fails, exit with an error. (#457)
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Improved support for assembler handling.
Providing additional triple information
to raise assembler for supported architectures
only.
Implemented support for raising full assembly
memory fence.
Added initial support for memory fences in Executor.
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Fix for klee_get_obj_size() crashing on 64-bit, resolves #446
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It allows stopping the execution on some conditions like assertions.
The use is like:
klee -exit-on-error-type=Assert -exit-on-error-type=External file.llvm
This is especially useful in the SV-COMP.
A test to cover the new parameter was added too.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
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Added test case exposing division by zero failure reported by @kren1 and made division total in STP to fix it.
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Sometimes, globals are not sized and ->getTypeStoreSize on such type
crashes inside the LLVM. Check whether type is sized prior to calling
the function above.
A minimalistic example of Y being unsized with no effect on the actual
code is put to tests.
[v2]
Use klee_warning for printing. And use %.*s formatting string given
StringRef.data() need not be null terminated.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
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Generated STP equality expressions have to be the same type.
If a shift with different types as operands was used,
therefore equality expressions of different width were generated.
Beside avoiding the different sizes, this patch restores the
original behavior to extract just the part involved in shifting
and therefore should generate smaller expressions.
Enable sdiv test case
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This patch generates the states based on the order of switch-cases.
Before, switch-constraints were randomly assigned to forked states.
As generated code might be different between LLVM versions,
we use the case values, order them, and iterate in that order
over the cases.
This way we can also support deterministic execution of older LLVM
versions.
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Deterministic adding/removing of states.
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Provide initial zlib-based compression support for
raw_outstreams. Replacing llvm::raw_fd_outstreams
with compressed_fd_outstreams automatically compresses
data in gzip format before writing to file.
Options added:
* --compress-log to compress all query log files (e.g. *.pc, *.smt2) on
the fly. Every query log file gets extended with .gz.
* --debug-compress-instructions to compress logfile for instruction
stream on the fly.
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recently fixed in STP.
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Fixed bug #375 in Kleaver's parser and added --clear-array-decls-after-query option to Kleaver.
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