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| author | Kostya Serebryany <kcc@google.com> | 2016-03-18 20:58:29 +0000 |
|---|---|---|
| committer | Kostya Serebryany <kcc@google.com> | 2016-03-18 20:58:29 +0000 |
| commit | 49e409068af85ba10e9b08bdc1d2d5f3b345c1e7 (patch) | |
| tree | eae319c59138416a0739d33e57e4a4c4cd010d4f /llvm/lib/Fuzzer/test | |
| parent | 5ba3d3e632fbc30edf9cc2eae4715c28b1a4ffb7 (diff) | |
| download | bcm5719-llvm-49e409068af85ba10e9b08bdc1d2d5f3b345c1e7.tar.gz bcm5719-llvm-49e409068af85ba10e9b08bdc1d2d5f3b345c1e7.zip | |
[libFuzzer] add a flag close_fd_mask so that we can silence spammy targets by closing stderr/stdout
llvm-svn: 263831
Diffstat (limited to 'llvm/lib/Fuzzer/test')
| -rw-r--r-- | llvm/lib/Fuzzer/test/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | llvm/lib/Fuzzer/test/SpamyTest.cpp | 18 | ||||
| -rw-r--r-- | llvm/lib/Fuzzer/test/fuzzer.test | 29 |
3 files changed, 48 insertions, 0 deletions
diff --git a/llvm/lib/Fuzzer/test/CMakeLists.txt b/llvm/lib/Fuzzer/test/CMakeLists.txt index 83dbbbc5aa1..255be9c0ccd 100644 --- a/llvm/lib/Fuzzer/test/CMakeLists.txt +++ b/llvm/lib/Fuzzer/test/CMakeLists.txt @@ -30,6 +30,7 @@ set(Tests SimpleFnAdapterTest SimpleHashTest SimpleTest + SpamyTest StrcmpTest StrncmpTest SwitchTest diff --git a/llvm/lib/Fuzzer/test/SpamyTest.cpp b/llvm/lib/Fuzzer/test/SpamyTest.cpp new file mode 100644 index 00000000000..63776d6dfb9 --- /dev/null +++ b/llvm/lib/Fuzzer/test/SpamyTest.cpp @@ -0,0 +1,18 @@ +// The test spams to stderr and stdout. +#include <assert.h> +#include <cstdint> +#include <cstdio> +#include <cstddef> +#include <iostream> + +extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { + assert(Data); + printf("PRINTF_STDOUT\n"); + fflush(stdout); + fprintf(stderr, "PRINTF_STDERR\n"); + std::cout << "STREAM_COUT\n"; + std::cout.flush(); + std::cerr << "STREAM_CERR\n"; + return 0; +} + diff --git a/llvm/lib/Fuzzer/test/fuzzer.test b/llvm/lib/Fuzzer/test/fuzzer.test index 3ab767353ea..240209d1c02 100644 --- a/llvm/lib/Fuzzer/test/fuzzer.test +++ b/llvm/lib/Fuzzer/test/fuzzer.test @@ -91,3 +91,32 @@ FINAL_STATS: stat::new_units_added: FINAL_STATS: stat::slowest_unit_time_sec: 0 FINAL_STATS: stat::peak_rss_mb: +RUN: LLVMFuzzer-SpamyTest -runs=1 2>&1 | FileCheck %s --check-prefix=FD_MASK_0 +RUN: LLVMFuzzer-SpamyTest -runs=1 -close_fd_mask=0 2>&1 | FileCheck %s --check-prefix=FD_MASK_0 +RUN: LLVMFuzzer-SpamyTest -runs=1 -close_fd_mask=1 2>&1 | FileCheck %s --check-prefix=FD_MASK_1 +RUN: LLVMFuzzer-SpamyTest -runs=1 -close_fd_mask=2 2>&1 | FileCheck %s --check-prefix=FD_MASK_2 +RUN: LLVMFuzzer-SpamyTest -runs=1 -close_fd_mask=3 2>&1 | FileCheck %s --check-prefix=FD_MASK_3 +FD_MASK_0: PRINTF_STDOUT +FD_MASK_0: PRINTF_STDERR +FD_MASK_0: STREAM_COUT +FD_MASK_0: STREAM_CERR +FD_MASK_0: INITED + +FD_MASK_1-NOT: PRINTF_STDOUT +FD_MASK_1: PRINTF_STDERR +FD_MASK_1-NOT: STREAM_COUT +FD_MASK_1: STREAM_CERR +FD_MASK_1: INITED + +FD_MASK_2: PRINTF_STDOUT +FD_MASK_2-NOT: PRINTF_STDERR +FD_MASK_2: STREAM_COUT +FD_MASK_2-NOTE: STREAM_CERR +FD_MASK_2: INITED + +FD_MASK_3-NOT: PRINTF_STDOUT +FD_MASK_3-NOT: PRINTF_STDERR +FD_MASK_3-NOT: STREAM_COUT +FD_MASK_3-NOT: STREAM_CERR +FD_MASK_3: INITED + |
