kc3-lang/libxml2/fuzz/scripts/coverage_report.sh

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• Hash : e649c972
  Author :
  Date : 2024-12-18T12:49:24
  

  fuzz: Add utility scripts
  
  Add scripts to minimize a corpus and generate HTML coverage reports.
  

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• fuzz/scripts/coverage_report.sh

• #!/bin/sh
  
  set -e
  
  fuzzer="$1"
  
  if [ -z "$fuzzer" ]; then
      echo usage: $0 fuzzer
      exit 1
  fi
  
  # Rebuild the project with coverage enabled
  
  make distclean
  export CC=clang
  export CXX=clang++
  export CFLAGS=" \
      -O1 -gline-tables-only \
      -fsanitize=fuzzer-no-link \
      -fprofile-instr-generate -fcoverage-mapping \
      -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION"
  sh autogen.sh --without-python
  make -j5
  rm default.profraw
  
  # Process corpus once
  
  cd fuzz
  make $fuzzer
  
  ./$fuzzer -runs=1 corpus/$fuzzer
  
  # Generate HTML report
  
  llvm-profdata merge default.profraw -o default.profdata
  llvm-cov show -format=html -output-dir=report \
      -instr-profile default.profdata \
      ../.libs/libxml2.so
  rm default.profraw default.profdata
  

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