1 MSAN, ASAN, & TSAN 2 ================== 3 4 *Testing Skia with memory, address, and thread santizers.* 5 6 Downloading Clang Binaries (Googlers Only) 7 ------------------------------------------ 8 9 CLANGDIR="${HOME}/clang" 10 python infra/bots/assets/clang_linux/download.py -t $CLANGDIR 11 12 Building Clang from scratch 13 --------------------------- 14 15 CLANGDIR="${HOME}/clang" 16 17 python tools/git-sync-deps 18 CC= CXX= infra/bots/assets/clang_linux/create.py -t "$CLANGDIR" 19 20 Configure and Compile Skia with MSAN 21 ------------------------------------ 22 23 CLANGDIR="${HOME}/clang" 24 mkdir -p out/msan 25 cat > out/msan/args.gn <<- EOF 26 cc = "${CLANGDIR}/bin/clang" 27 cxx = "${CLANGDIR}/bin/clang++" 28 extra_cflags = [ "-B${CLANGDIR}/bin" ] 29 extra_ldflags = [ "-B${CLANGDIR}/bin", "-fuse-ld=lld", "-L${CLANGDIR}/msan" ] 30 sanitize = "MSAN" 31 skia_use_fontconfig = false 32 EOF 33 python tools/git-sync-deps 34 bin/gn gen out/msan 35 ninja -C out/msan 36 37 When you run a binary built with MSAN, make sure you force it to use our 38 MSAN-instrumented libc++: 39 40 env LD_LIBRARY_PATH=$CLANGDIR/msan out/dm ... 41 42 Configure and Compile Skia with ASAN 43 ------------------------------------ 44 45 CLANGDIR="${HOME}/clang" 46 mkdir -p out/asan 47 cat > out/asan/args.gn <<- EOF 48 cc = "${CLANGDIR}/bin/clang" 49 cxx = "${CLANGDIR}/bin/clang++" 50 sanitize = "ASAN" 51 EOF 52 python tools/git-sync-deps 53 bin/gn gen out/asan 54 ninja -C out/asan 55 56 Configure and Compile Skia with TSAN 57 ------------------------------------ 58 59 CLANGDIR="${HOME}/clang" 60 mkdir -p out/tsan 61 cat > out/tsan/args.gn <<- EOF 62 cc = "${CLANGDIR}/bin/clang" 63 cxx = "${CLANGDIR}/bin/clang++" 64 sanitize = "TSAN" 65 is_debug = false 66 EOF 67 python tools/git-sync-deps 68 bin/gn gen out/tsan 69 ninja -C out/tsan 70 71 72
