build: add support for Clang with Address Sanitizer.

.bazelrc

@@ -8,6 +8,28 @@ build:clang --action_env=BAZEL_COMPILER=clang
 build:clang --action_env=CC=clang
 build:clang --action_env=CXX=clang++
 
+# Use Clang compiler with Address and Undefined Behavior Sanitizers.
+build:clang-asan --config=clang
+build:clang-asan --copt -DADDRESS_SANITIZER=1
+build:clang-asan --copt -DUNDEFINED_SANITIZER=1
+build:clang-asan --copt -O1
+build:clang-asan --copt -fno-omit-frame-pointer
+build:clang-asan --copt -fno-optimize-sibling-calls
+build:clang-asan --copt -fsanitize=address,undefined
+build:clang-asan --copt -fsanitize-address-use-after-scope
+build:clang-asan --linkopt -fsanitize=address,undefined
+build:clang-asan --linkopt -fsanitize-address-use-after-scope
+build:clang-asan --linkopt -fsanitize-link-c++-runtime
+build:clang-asan --linkopt -fuse-ld=lld
+build:clang-asan --test_env=ASAN_OPTIONS=check_initialization_order=1:detect_stack_use_after_return=1:strict_init_order=1:strict_string_checks=1
+build:clang-asan --test_env=UBSAN_OPTIONS=halt_on_error=1:print_stacktrace=1
+build:clang-asan --test_env=ASAN_SYMBOLIZER_PATH
+
+# Use Clang compiler with Address and Undefined Behavior Sanitizers (strict version).
+build:clang-asan-strict --config=clang-asan
+build:clang-asan-strict --copt -fsanitize=integer
+build:clang-asan-strict --linkopt -fsanitize=integer
+
 # Use GCC compiler.
 build:gcc --action_env=BAZEL_COMPILER=gcc
 build:gcc --action_env=CC=gcc

.github/workflows/test.yml

@@ -96,6 +96,12 @@ jobs:
           arch: x86_64
           action: test
           flags: --config=gcc
+        - name: 'NullVM on Linux/x86_64 with ASan'
+          engine: 'null'
+          os: ubuntu-20.04
+          arch: x86_64
+          action: test
+          flags: --config=clang-asan-strict
         - name: 'NullVM on Windows/x86_64'
           engine: 'null'
           os: windows-2019
@@ -109,6 +115,14 @@ jobs:
           action: test
           flags: --config=clang --define=crypto=system
           cache: true
+        - name: 'V8 on Linux/x86_64 with ASan'
+          engine: 'v8'
+          repo: 'v8'
+          os: ubuntu-20.04
+          arch: x86_64
+          action: test
+          flags: --config=clang-asan
+          cache: true
         - name: 'V8 on Linux/aarch64'
           engine: 'v8'
           repo: 'v8'
@@ -145,6 +159,13 @@ jobs:
           arch: x86_64
           action: test
           flags: --config=clang
+        - name: 'Wasmtime on Linux/x86_64 with ASan'
+          engine: 'wasmtime'
+          repo: 'com_github_bytecodealliance_wasmtime'
+          os: ubuntu-20.04
+          arch: x86_64
+          action: test
+          flags: --config=clang-asan-strict
         - name: 'Wasmtime on Linux/aarch64'
           engine: 'wasmtime'
           repo: 'com_github_bytecodealliance_wasmtime'