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## Build & Run
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Depending on what area you are working in change or add `HB_DEBUG_<whatever>`.
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Values defined in `hb-debug.hh`.
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```shell
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# quick sanity check
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time (make -j4 CPPFLAGS='-DHB_DEBUG_SUBSET=100' \
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&& (make -j4 -C test/api check || cat test/api/test-suite.log))
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# slower sanity check
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time (make -j4 CPPFLAGS='-DHB_DEBUG_SUBSET=100' \
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&& make -j4 -C src check \
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&& make -j4 -C test/api check \
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&& make -j4 -C test/subset check)
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# confirm you didn't break anything else
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time (make -j4 CPPFLAGS='-DHB_DEBUG_SUBSET=100' \
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&& make -j4 check)
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# often catches files you didn't add, e.g. test fonts to EXTRA_DIST
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make distcheck
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```
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### Run tests with asan
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**NOTE**: this sometimes yields harder to read results than the full fuzzer
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```shell
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# For nice symbols tell asan how to symoblize. Note that it doesn't like versioned copies like llvm-symbolizer-3.8
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# export ASAN_SYMBOLIZER_PATH=path to version-less llvm-symbolizer
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# ex
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export ASAN_SYMBOLIZER_PATH=/usr/lib/llvm-3.8/bin/llvm-symbolizer
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./configure CC=clang CXX=clang++ CPPFLAGS=-fsanitize=address LDFLAGS=-fsanitize=address
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# make/run tests as usual
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```
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### Debug with GDB
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```
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cd ./util
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../libtool --mode=execute gdb --args ./hb-subset ...
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```
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### Enable Debug Logging
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```shell
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# make clean if you previously build w/o debug logging
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make CPPFLAGS=-DHB_DEBUG_SUBSET=100
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```
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## Build and Test via CMake
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Note: You'll need to first install ninja-build via apt-get.
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```shell
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cd harfbuzz
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mkdir buid
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cmake -DHB_CHECK=ON -Bbuild -H. -GNinja && ninja -Cbuild && CTEST_OUTPUT_ON_FAILURE=1 ninja -Cbuild test
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```
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## Test with the Fuzzer
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```shell
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# push your changs to a branch on googlefonts/harfbuzz
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# In a local copy of oss-fuzz, edit projects/harfbuzz/Dockerfile
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# Change the git clone to pull your branch
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# Do this periodically
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sudo python infra/helper.py build_image harfbuzz
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# Do these to update/run
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sudo python infra/helper.py build_fuzzers --sanitizer address harfbuzz
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sudo python infra/helper.py run_fuzzer harfbuzz hb-subset-fuzzer
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```
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## Profiling
|
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|
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```
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make clean
|
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|
./configure CXXFLAGS="-fno-omit-frame-pointer -g"
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make
|
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|
perf record -o <perf output file> -g <command to run>
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|
perf report -i<perf output file>
|
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|
|
```
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