Comments (4)
Hi, thanks for your interest to K-scheduler. Could you provide file tiff2pdf_fix.ll and directory cfg_out_tiff2pdf to me? Binary compiled with wllvm (tiff2pdf) stores the corresponding llvm IR file in your local directory. I cannot extract the llvm IR file (tiff2pdf_fix.ll) with the single binary (tiff2pdf).
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Sorry for my carelessness. Attached are the related files :)
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I checked the binary and llvm IR file. It seems the binary is not compiled with LLVM coverage sanitizer (https://clang.llvm.org/docs/SanitizerCoverage.html) which instruments every edge and assigns a unique/non-collision edge ID.
A quick check is to scan tiff2pdf_fix.ll and look for any occurrence of function "__sanitizer_cov_trace_pc_guard".
A quick fix is to double-check if your CFLAGS and CXXFLAGS contains "-fsanitize-coverage=trace-pc-guard,no-prune" and recompile libtiff.
For more detail about building a non-wrapper based binary, please check the tutorial at https://github.com/Dongdongshe/K-Scheduler/blob/main/afl_integration/build_example/README(non_wrapper%20based%20program).md.
Let me know if you encounter any other issue.
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Thanks a lot!
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Related Issues (15)
- It seems not to work when set clang as below. HOT 2
- Dynamically-linked binary error on K-Scheduler and corresponding fix. HOT 7
- The problem of edge coverage result deviation HOT 2
- `ValueError: max() arg is an empty sequence` on gen_graph.py HOT 2
- Questions about the Fuzzbench HOT 2
- Compiling harfbuzz reports an error HOT 2
- Some problems with afl integration HOT 4
- About the running of multiple fuzzing instances of the afl_integration. HOT 2
- interprocedure graph problem HOT 1
- build harfbuzz fuzzer wrapper problem HOT 1
- Problem about running K-Scheduler-based afl on an example program harfbuzz HOT 2
- Segmentation fault when running afl-fuzz_kscheduler HOT 7
- 'grep "llvm.compiler.used" xxx_fix.ll' return non-zero exit status 1 HOT 2
- How do I set up the graph analysis module when running multiple K-Schedulers at the same time HOT 4
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