Add V8 integration (#13903)

Author: oliverchang

projects/v8/Dockerfile

@@ -0,0 +1,34 @@
+# Copyright 2025 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.
+#
+################################################################################
+
+FROM gcr.io/oss-fuzz-base/base-builder
+RUN apt-get update && \
+    apt-get install --no-install-recommends -y \
+        lsb-release sudo pkg-config file libc++-18-dev libc++abi-18-dev
+RUN git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
+ENV PATH=/src/depot_tools:$PATH
+RUN fetch v8
+WORKDIR v8
+
+RUN ./build/install-build-deps.sh --no-prompt
+COPY build.sh *.cc $SRC/
+
+ENV CLANG_TOOLCHAIN $SRC/v8/third_party/llvm-build/Release+Asserts
+ENV CLANG_VERSION 21
+
+# Temporary hack: use an indexer built against LLVM 21.
+ADD https://clusterfuzz-builds.storage.googleapis.com/oss-fuzz-artifacts/indexer-21 /opt/indexer/indexer
+RUN chmod +x /opt/indexer/indexer

projects/v8/build.sh

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+#!/bin/bash -eu
+# Copyright 2025 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.
+#
+################################################################################
+
+# Configure arguments for gn build
+ARGS='is_asan = true
+ is_component_build = false
+ use_clang_modules = false
+ is_debug = true
+ symbol_level = 2
+ forbid_non_component_debug_builds = false
+ use_debug_fission = false
+ use_dwarf5 = true
+ target_cpu = "x64"
+ target_os = "linux"
+ use_reclient = false
+ use_remoteexec = false
+ use_siso = false
+ treat_warnings_as_errors = false
+ libcxx_is_shared = false
+ v8_enable_backtrace = true
+ v8_enable_slow_dchecks = false
+ v8_optimized_debug = false
+ v8_enable_fast_mksnapshot = true'
+
+if [[ -n "${INDEXER_BUILD:-}" ]]; then
+    ARGS="$ARGS clang_base_path=\"/opt/toolchain\""
+fi
+
+# Generate ninja file for build
+gn gen out/fuzz --args="$ARGS"
+echo $SANITIZER
+# Build binary
+ninja -C out/fuzz d8 -j$(nproc)
+
+# Copy binary to $OUT
+cp ./out/fuzz/{d8,snapshot_blob.bin} $OUT

projects/v8/project.yaml

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+homepage: "https://chromium.googlesource.com/v8/v8"
+language: c++
+main_repo: "https://chromium.googlesource.com/v8/v8"
+fuzzing_engines:
+  - none
+sanitizers:
+  - address