forked from OSchip/llvm-project
39 lines
2.0 KiB
Plaintext
39 lines
2.0 KiB
Plaintext
# Tests the data flow tracer.
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REQUIRES: linux
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UNSUPPORTED: aarch64
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# Build the tracer and the test.
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RUN: %no_fuzzer_cpp_compiler -c -fno-sanitize=all -fsanitize=dataflow %S/../../lib/fuzzer/dataflow/DataFlow.cpp -o %t-DataFlow.o
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RUN: %no_fuzzer_cpp_compiler -fno-sanitize=all -fsanitize=dataflow -fsanitize-coverage=trace-pc-guard,pc-table,func,trace-cmp %S/OnlySomeBytesTest.cpp %t-DataFlow.o -o %t-DFT
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RUN: %cpp_compiler %S/OnlySomeBytesTest.cpp -o %t-Fuzz
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# Prepare the inputs.
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RUN: rm -rf %t/*
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RUN: mkdir -p %t/IN
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RUN: echo -n 0123456789012345678901234567890123456789012345678901234567891234 > %t/IN/6
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RUN: cat %t/IN/6 %t/IN/6 %t/IN/6 %t/IN/6 > %t/IN/8
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RUN: cat %t/IN/8 %t/IN/8 %t/IN/8 %t/IN/8 > %t/IN/10
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RUN: cat %t/IN/10 %t/IN/10 %t/IN/10 %t/IN/10 > %t/IN/12
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# %t/IN/12 is 4096 bytes-long.
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RUN: %t-Fuzz -focus_function=f0 -runs=0 %t/IN 2>&1 | FileCheck %s --check-prefix=NO_FOCUSED_INPUT
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NO_FOCUSED_INPUT: INFO: 0/2 inputs touch the focus function
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RUN: (echo -n ABC; cat %t/IN/12) > %t/IN/ABC
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RUN: %t-Fuzz -focus_function=f0 -runs=0 %t/IN 2>&1 | FileCheck %s --check-prefix=ONE_FOCUSED_INPUT
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ONE_FOCUSED_INPUT: INFO: 1/3 inputs touch the focus function
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RUN: rm -rf %t/IN_DFT
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RUN: %libfuzzer_src/scripts/collect_data_flow.py %t-DFT %t/IN %t/IN_DFT > /dev/null 2>&1
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# Repeat twice to make sure that the inputs with DFT are not removed from the corpus.
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RUN: %t-Fuzz -focus_function=f0 -data_flow_trace=%t/IN_DFT -runs=100 %t/IN 2>&1 | FileCheck %s --check-prefix=HAVE_DFT
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RUN: %t-Fuzz -focus_function=f0 -data_flow_trace=%t/IN_DFT -runs=100 %t/IN 2>&1 | FileCheck %s --check-prefix=HAVE_DFT
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HAVE_DFT: INFO: 1/{{.*}} inputs have the Data Flow Trace
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# Collect DFT, then use it.
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RUN: rm -rf %t/C && mkdir %t/C && cp %t/IN/* %t/C
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RUN: rm -rf %t/C_DFT && %libfuzzer_src/scripts/collect_data_flow.py %t-DFT %t/C %t/C_DFT > /dev/null 2>&1
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RUN: not %t-Fuzz -focus_function=f0 -data_flow_trace=%t/C_DFT -seed=1 -runs=1000000 -use_value_profile=1 %t/C 2> %t/log
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RUN: grep BINGO %t/log
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