diff options
| -rw-r--r-- | test/fuzzer/GcSectionsTest.cpp | 14 | ||||
| -rw-r--r-- | test/fuzzer/gc-sections.test | 13 |
2 files changed, 27 insertions, 0 deletions
diff --git a/test/fuzzer/GcSectionsTest.cpp b/test/fuzzer/GcSectionsTest.cpp new file mode 100644 index 000000000..fd9da7735 --- /dev/null +++ b/test/fuzzer/GcSectionsTest.cpp @@ -0,0 +1,14 @@ +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. + +// Simple test for a fuzzer. +// The unused function should not be present in the binary. +#include <cstddef> +#include <cstdint> + +extern "C" void UnusedFunctionShouldBeRemovedByLinker() { } + +extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { + return 0; +} + diff --git a/test/fuzzer/gc-sections.test b/test/fuzzer/gc-sections.test new file mode 100644 index 000000000..8785bb00e --- /dev/null +++ b/test/fuzzer/gc-sections.test @@ -0,0 +1,13 @@ +REQUIRES: linux + +No gc-sections: +RUN: %cpp_compiler %S/GcSectionsTest.cpp -o %t +RUN: nm %t | grep UnusedFunctionShouldBeRemovedByLinker | count 1 + +With gc-sections. Currently, we can't remove unused code. +DISABLED: %cpp_compiler %S/GcSectionsTest.cpp -o %t -ffunction-sections -Wl,-gc-sections +DISABLED: nm %t | grep UnusedFunctionShouldBeRemovedByLinker | count 1 + +With gc sections, with trace-pc. Unused code is removed. +RUN: %cpp_compiler %S/GcSectionsTest.cpp -o %t -fsanitize-coverage=0 -fsanitize-coverage=trace-pc -ffunction-sections -Wl,-gc-sections +RUN: nm %t | not grep UnusedFunctionShouldBeRemovedByLinker |