About

Modified benchmark recipe

• supports sanitizers, see https://github.com/google/sanitizers/wiki/MemorySanitizerLibcxxHowTo#instrumented-gtest
• uses llvm_tools conan package in builds with LLVM_USE_SANITIZER, see https://github.com/google/sanitizers/wiki/MemorySanitizerLibcxxHowTo#instrumented-gtest
• uses llvm_tools conan package in builds with libc++ (will be instrumented if LLVM_USE_SANITIZER enabled)
• etc.

NOTE: use -s llvm_tools:build_type=Release during conan install

Local build

conan remote add conan-center https://api.bintray.com/conan/conan/conan-center False

export PKG_NAME=benchmark/v1.5.2@dev/stable

(CONAN_REVISIONS_ENABLED=1 \
    conan remove --force $PKG_NAME || true)

conan create . \
  dev/stable \
  -s build_type=Release \
  --profile clang \
  --build missing \
  --build cascade

conan upload $PKG_NAME \
  --all -r=conan-local \
  -c --retry 3 \
  --retry-wait 10 \
  --force

# clean build cache
conan remove "*" --build --force

Build with sanitizers support

Use -o llvm_tools:enable_tsan=True and -e *:compile_with_llvm_tools=True like so:

export CC=$(find ~/.conan/data/llvm_tools/master/conan/stable/package/ -path "*bin/clang" | head -n 1)

export CXX=$(find ~/.conan/data/llvm_tools/master/conan/stable/package/ -path "*bin/clang++" | head -n 1)

export TSAN_OPTIONS="handle_segv=0:disable_coredump=0:abort_on_error=1:report_thread_leaks=0"

# make sure that env. var. TSAN_SYMBOLIZER_PATH points to llvm-symbolizer
# conan package llvm_tools provides llvm-symbolizer
# and prints its path during cmake configure step
# echo $TSAN_SYMBOLIZER_PATH
export TSAN_SYMBOLIZER_PATH=$(find ~/.conan/data/llvm_tools/master/conan/stable/package/ -path "*bin/llvm-symbolizer" | head -n 1)

# NOTE: NO `--profile` argument cause we use `CXX` env. var
conan create . \
  dev/stable \
  -s build_type=Debug \
  -s compiler=clang \
  -s compiler.version=10 \
  -s compiler.libcxx=libc++ \
  -s llvm_tools:compiler=clang \
  -s llvm_tools:compiler.version=6.0 \
  -s llvm_tools:compiler.libcxx=libstdc++11 \
  -s llvm_tools:build_type=Release \
  -o llvm_tools:enable_tsan=True \
  -o llvm_tools:include_what_you_use=False \
  -e conan_benchmark_test_package:compile_with_llvm_tools=True \
  -e conan_benchmark_test_package:enable_llvm_tools=True \
  -e benchmark:compile_with_llvm_tools=True \
  -e benchmark:enable_llvm_tools=True \
  -o benchmark:enable_tsan=True

# clean build cache
conan remove "*" --build --force

How to diagnose errors in conanfile (CONAN_PRINT_RUN_COMMANDS)

export VERBOSE=1
export CONAN_REVISIONS_ENABLED=1
export CONAN_VERBOSE_TRACEBACK=1
export CONAN_PRINT_RUN_COMMANDS=1
export CONAN_LOGGING_LEVEL=10
export GIT_SSL_NO_VERIFY=true

# NOTE: about `--keep-source` see https://bincrafters.github.io/2018/02/27/Updated-Conan-Package-Flow-1.1/
conan create . conan/stable -s build_type=Debug --profile clang --build missing --build cascade --keep-source