From dcc709dd23fc8a50d5dc087d4d5961dea041bf01 Mon Sep 17 00:00:00 2001 From: Dan Liew Date: Sat, 14 Jan 2017 19:44:08 +0000 Subject: Change how error handling is done in libkleeRuntest. 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. --- .../libkleeruntest/replay_invalid_num_objects.c | 39 ++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 test/Replay/libkleeruntest/replay_invalid_num_objects.c (limited to 'test/Replay/libkleeruntest/replay_invalid_num_objects.c') diff --git a/test/Replay/libkleeruntest/replay_invalid_num_objects.c b/test/Replay/libkleeruntest/replay_invalid_num_objects.c new file mode 100644 index 00000000..43bc4867 --- /dev/null +++ b/test/Replay/libkleeruntest/replay_invalid_num_objects.c @@ -0,0 +1,39 @@ +// Compile program that only makes one klee_make_symbolic() call +// RUN: %llvmgcc %s -emit-llvm -g -O0 -c -o %t.bc +// RUN: rm -rf %t.klee-out +// RUN: %klee --output-dir=%t.klee-out --search=dfs %t.bc +// RUN: test -f %t.klee-out/test000001.ktest + +// Now try to replay with libkleeRuntest but build the binary so it +// makes two calls to klee_make_symbolic. +// RUN: %cc -DEXTRA_MAKE_SYMBOLIC %s %libkleeruntest -Wl,-rpath=%libkleeruntestdir -o %t_runner + +// Check that the default is to exit with an error +// RUN: not env KTEST_FILE=%t.klee-out/test000001.ktest %t_runner 2>&1 | FileCheck -check-prefix=CHECK_FATAL %s + +// Check that setting `KLEE_RUN_TEST_ERRORS_NON_FATAL` will not exit with an error +// and will continue executing. +// RUN: env KTEST_FILE=%t.klee-out/test000001.ktest KLEE_RUN_TEST_ERRORS_NON_FATAL=1 %t_runner 2>&1 | FileCheck %s + +#include "klee/klee.h" +#include + +int main(int argc, char** argv) { + int x = 0; + klee_make_symbolic(&x, sizeof(x), "x"); + +#ifdef EXTRA_MAKE_SYMBOLIC + int y = 1; + klee_make_symbolic(&y, sizeof(y), "x"); + klee_assume(y == 0); + fprintf(stderr, "y is \"%d\"\n", y); +#endif + return 0; +} +// CHECK: KLEE_RUN_TEST_ERROR: out of inputs +// CHECK: KLEE_RUN_TEST_ERROR: Forcing execution to continue +// CHECK: y is "0" + +// CHECK_FATAL: KLEE_RUN_TEST_ERROR: out of inputs +// CHECK_FATAL-NOT: y is "0" + -- cgit 1.4.1