User:Sahilvaidya/CQL/Log

2/17

• Found exactly how to create a test

2/19

• Found best files to begin trying to fuzz

2/24

• Made basic programs using zzuf and afl to begin fuzzing

2/27

• Tried to integrate AFL with BRL-CAD tests

3/2

• Began learning and practicing new fuzzer -- LibFuzzer
• Went through tutorials on LibFuzzer and wrote sort programs to run it on
• Followed this tutorial: https://github.com/google/fuzzing/blob/master/tutorial/libFuzzerTutorial.md

3/4

• Tried to link LibFuzzer target to BRL-CAD library
• Struggled with the compilation of BRL-CAD (required installing libraries not needed before)
• Struggled with compiling target so it had BRL-CAD libraries

3/9

• Experimented with compiling target and consulted Shikhar, a PHd student at UT
• Found the BRL-CAD header file and the exact syntax needed to fully compile my target
• Built the target, ran it in various ways tinkering with how the data was input into bu_sort, checking if the output was correct, adding seeds to the input
• Used this compilation statement

clang++ -g -O1 -fsanitize=fuzzer -Iinclude -Ibuild/include -Ibuild/include/openNURBS/ target.cc -Lbuild/lib -Wl,-rpath -Wl,build/lib -lrt -lbu

3/23

• Learned Jenkins CI and successfully built BRL-CAD
• Started creating a build to test BRL-CAD immediately

3/25

• Fixed testing BRL-CAD in Jenkins
• Began creating infrastructure for a "make fuzz"

3/30

• Looked at other regression tests cmake files to find what exactly is required to compile
• Tried to mimic these to compile fuzzing tests

4/1

• Switched strategies for compiling using cmake, spent most of my time reading documentation to better understand how exactly cmake works and how that can be applied to fuzzing

4/13

• Figured out how to create a fuzz directory in the build
• Began writing run.sh to find libraries and compile the test
• Used the benchmark file to base the run.sh off of but cannot figure out how to find the target

4/17

• Much closer to compiling target -- using add_executable and linking targets with target_link_libraries
• Found how to link libfuzzer with the target in cmake
• Added dependency bu
• Still having trouble figuring out how to add the dependency rt
• Getting error that it is an executable that cannot be shared

4/27

• Changed compiler to Clang for building BRL-CAD
• Successfully compiled fuzz test
• Able to run fuzz test with "make fuzz"

4/28

• Compiled Sean's random command generator using "make fuzz"

4/29

• Created a patch for local SVN changes

4/30

• Compiled new make fuzz target which runs random commands -- already finds bugs
• Need to find how to record code coverage and improve it