1 files changed, 106 insertions, 0 deletions
diff --git a/projects/tint/build.sh b/projects/tint/build.sh
new file mode 100755
index 000000000..68b682b91
--- /dev/null
+++ b/projects/tint/build.sh
@@ -0,0 +1,106 @@
+#!/bin/bash -eu
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+cp standalone.gclient .gclient
+gclient sync
+
+mkdir -p out/Debug
+pushd out/Debug
+
+# ubsan's vptr sanitization is desabled as it requires RTTI, which is disabled
+# when building tint.
+CFLAGS="$CFLAGS -fno-sanitize=vptr" \
+CXXFLAGS="$CXXFLAGS -fno-sanitize=vptr" \
+cmake -GNinja ../.. -DCMAKE_BUILD_TYPE=Release -DTINT_BUILD_FUZZERS=ON -DTINT_BUILD_SPIRV_TOOLS_FUZZER=ON -DTINT_BUILD_TESTS=OFF -DTINT_LIB_FUZZING_ENGINE_LINK_OPTIONS=$LIB_FUZZING_ENGINE
+
+if [ -n "${OSS_FUZZ_CI-}" ]
+then
+  # When running in the CI, restrict to a small number of fuzz targets to save
+  # time and disk space.  A SPIR-V Tools-based fuzzer that uses the HLSL
+  # back-end, and a regular fuzzer that uses the MSL back-end, are selected.
+  SPIRV_TOOLS_FUZZERS="tint_spirv_tools_hlsl_writer_fuzzer"
+  SPIRV_FUZZERS="tint_spv_reader_msl_writer_fuzzer\
+   ${SPIRV_TOOLS_FUZZERS}"
+else
+  SPIRV_TOOLS_FUZZERS="tint_spirv_tools_hlsl_writer_fuzzer\
+   tint_spirv_tools_msl_writer_fuzzer\
+   tint_spirv_tools_spv_writer_fuzzer\
+   tint_spirv_tools_wgsl_writer_fuzzer"
+  SPIRV_FUZZERS="tint_spv_reader_hlsl_writer_fuzzer\
+   tint_spv_reader_msl_writer_fuzzer\
+   tint_spv_reader_spv_writer_fuzzer\
+   tint_spv_reader_wgsl_writer_fuzzer\
+   ${SPIRV_TOOLS_FUZZERS}"
+fi
+
+# The spirv-as tool is used to build seed corpora
+ninja ${SPIRV_FUZZERS}
+
+cp ${SPIRV_FUZZERS} $OUT
+
+popd
+
+# An un-instrumented build of spirv-as is used to generate a corpus of SPIR-V binaries.
+mkdir -p out/Standard
+pushd out/Standard
+
+# Back-up instrumentation options
+CFLAGS_SAVE="$CFLAGS"
+CXXFLAGS_SAVE="$CXXFLAGS"
+unset CFLAGS
+unset CXXFLAGS
+export AFL_NOOPT=1
+
+cmake -GNinja ../.. -DCMAKE_BUILD_TYPE=Release
+ninja spirv-as
+
+# Restore instrumentation options
+export CFLAGS="${CFLAGS_SAVE}"
+export CXXFLAGS="${CXXFLAGS_SAVE}"
+unset AFL_NOOPT
+
+popd
+
+# Generate a corpus of SPIR-V binaries from the SPIR-V assembly files in the
+# tint repository.
+mkdir $WORK/spirv-corpus
+python3 fuzzers/generate_spirv_corpus.py test $WORK/spirv-corpus out/Standard/spirv-as
+
+mkdir $WORK/spirv-corpus-hashed-names
+for f in `ls $WORK/spirv-corpus/*.spv`
+do
+  hashed_name=$(sha1sum "$f" | awk '{print $1}')
+  cp $f $WORK/spirv-corpus-hashed-names/$hashed_name
+done
+
+zip -j "$WORK/seed_corpus.zip" "$WORK"/spirv-corpus-hashed-names/*
+
+for fuzzer in $SPIRV_FUZZERS
+do
+  cp "$WORK/seed_corpus.zip" "$OUT/${fuzzer}_seed_corpus.zip"
+done
+
+for fuzzer in $SPIRV_TOOLS_FUZZERS
+do
+  echo "[libfuzzer]
+max_len = 10000
+cross_over = 0
+mutate_depth = 1
+tint_enable_all_mutations = false
+tint_mutation_batch_size = 5
+" > "$OUT/${fuzzer}.options"
+done