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authorMike Aizatsky <aizatsky@chromium.org>2016-06-30 20:43:06 +0000
committerMike Aizatsky <aizatsky@chromium.org>2016-06-30 20:43:06 +0000
commit8ba86a5a48b95fc7818946790fa8e97cbe98b62d (patch)
tree4ca35c7928017991d010c2e7880b1ce3492bde04 /llvm/lib/Fuzzer/test/afl-driver-extra-stats.test
parent3898a0468c63b66c0533cf313f16cb8b5edab5b9 (diff)
downloadbcm5719-llvm-8ba86a5a48b95fc7818946790fa8e97cbe98b62d.tar.gz
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[libFuzzer] Let user specify extra stats file.
Summary: If AFL_DRIVER_EXTRA_STATS_FILENAME is set and valid, write to it peak_rss_mb and slowest_unit_time_sec. These are both stats that libFuzzer can print but afl cannot. Reviewers: kcc, aizatsky, metzman Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D21742 llvm-svn: 274273
Diffstat (limited to 'llvm/lib/Fuzzer/test/afl-driver-extra-stats.test')
-rw-r--r--llvm/lib/Fuzzer/test/afl-driver-extra-stats.test28
1 files changed, 28 insertions, 0 deletions
diff --git a/llvm/lib/Fuzzer/test/afl-driver-extra-stats.test b/llvm/lib/Fuzzer/test/afl-driver-extra-stats.test
new file mode 100644
index 00000000000..81e384e7dad
--- /dev/null
+++ b/llvm/lib/Fuzzer/test/afl-driver-extra-stats.test
@@ -0,0 +1,28 @@
+; Test that not specifying an extra stats file isn't broken.
+RUN: unset AFL_DRIVER_EXTRA_STATS_FILENAME
+RUN: AFLDriverTest
+
+; Test that specifying an invalid extra stats file causes a crash.
+RUN: ASAN_OPTIONS= AFL_DRIVER_EXTRA_STATS_FILENAME=%T not --crash AFLDriverTest
+
+; Test that specifying a corrupted stats file causes a crash.
+echo "peak_rss_mb :0" > %t
+ASAN_OPTIONS= AFL_DRIVER_EXTRA_STATS_FILENAME=%t not --crash AFLDriverTest
+
+; Test that specifying a valid nonexistent stats file works.
+RUN: rm -f %t
+RUN: AFL_DRIVER_EXTRA_STATS_FILENAME=%t AFLDriverTest
+RUN: [[ $(grep "peak_rss_mb\|slowest_unit_time_sec" %t | wc -l) -eq 2 ]]
+
+; Test that specifying a valid preexisting stats file works.
+RUN: printf "peak_rss_mb : 0\nslowest_unit_time_sec: 0\n" > %t
+RUN: AFL_DRIVER_EXTRA_STATS_FILENAME=%t AFLDriverTest
+; Check that both lines were printed.
+RUN: [[ $(grep "peak_rss_mb\|slowest_unit_time_sec" %t | wc -l) -eq 2 ]]
+
+; Test that peak_rss_mb and slowest_unit_time_in_secs are only updated when necessary.
+; Check that both lines have 9999 since there's no way we have exceeded that
+; amount of time or virtual memory.
+RUN: printf "peak_rss_mb : 9999\nslowest_unit_time_sec: 9999\n" > %t
+RUN: AFL_DRIVER_EXTRA_STATS_FILENAME=%t AFLDriverTest
+RUN: [[ $(grep "9999" %t | wc -l) -eq 2 ]]
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