Add support to fuzz with LibFuzzer

Both MSVC and clang have support for fuzzing with LibFuzzer. Add a console app that can be used to fuzz with LibFuzzer.
team-charls · Dec 27, 2023 · 8731d28 · 8731d28
1 parent e7b1e58
commit 8731d28
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Showing 22 changed files with 274 additions and 122 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -24,13 +24,17 @@ endif ()
 
 # The basic options to control what is build extra.
 option(CHARLS_BUILD_TESTS "Build test application" ${MASTER_PROJECT})
-option(CHARLS_BUILD_FUZZ_TEST "Build AFL fuzzer application" ${MASTER_PROJECT})
+option(CHARLS_BUILD_AFL_FUZZ_TEST "Build AFL test fuzzer application" ${MASTER_PROJECT})
+option(CHARLS_BUILD_LIBFUZZER_FUZZ_TEST "Build LibFuzzer test fuzzer application" ${MASTER_PROJECT})
 option(CHARLS_BUILD_SAMPLES "Build sample applications" ${MASTER_PROJECT})
 option(CHARLS_INSTALL "Generate the install target." ${MASTER_PROJECT})
 
 # Provide BUILD_SHARED_LIBS as an option for GUI tools
 option(BUILD_SHARED_LIBS "Will control if charls lib is build as shared lib/DLL or static library")
 
+# Provide option to build CharLS with address sanitizer
+option(CHARLS_ENABLE_ASAN "Build with address sanitizer enabled." OFF)
+
 # These options are used by the CI pipeline to ensure new warnings are detected quickly.
 # Not enabled by default to ensure the CharLS package is end-user friendly.
 option(CHARLS_PEDANTIC_WARNINGS "Enable extra warnings and static analysis." OFF)
@@ -143,6 +147,10 @@ if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
   if (NOT CMAKE_CXX_COMPILER_ID MATCHES "AppleClang")
     set(WARNINGS_AS_ERRORS_FLAG_LINKER LINKER:--fatal-warnings)
   endif()
+
+  if(NOT APPLE)
+    set(LIBFUZZER_SUPPORTED 1)
+  endif()
 endif()
 
 if(MSVC)
@@ -192,6 +200,11 @@ if(MSVC)
     add_link_options("/CETCOMPAT")
   endif()
 
+  # Enable LibFuzzer support for MSVC
+  if(${ARM_DETECTED} EQUAL 0 AND MSVC_VERSION GREATER_EQUAL 1930)
+    set(LIBFUZZER_SUPPORTED 1)
+  endif()
+
 endif()
 
 # When enabled apply the pedantic warnings options and warnings as errors to globally.
@@ -223,8 +236,12 @@ if(CHARLS_BUILD_TESTS)
   )
 endif()
 
-if(CHARLS_BUILD_FUZZ_TEST)
-  add_subdirectory(fuzztest)
+if(CHARLS_BUILD_AFL_FUZZ_TEST)
+  add_subdirectory(fuzzing/afl)
+endif()
+
+if(CHARLS_BUILD_LIBFUZZER_FUZZ_TEST AND LIBFUZZER_SUPPORTED)
+  add_subdirectory(fuzzing/libfuzzer)
 endif()
 
 if(CHARLS_BUILD_SAMPLES)

diff --git a/CharLS.sln b/CharLS.sln
@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
-VisualStudioVersion = 17.1.32104.313
+VisualStudioVersion = 17.9.34407.89
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "CharLSTest", "test\CharLSTest.vcxproj", "{7185AD7F-57BA-42C7-A715-239CEA8ADC31}"
 EndProject
@@ -31,10 +31,12 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "CharLSUnitTest", "unittest\
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "convert-cpp", "samples\convert.cpp\convert-cpp.vcxproj", "{E09F024E-A125-48AA-8E9D-7D1302BEAC97}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "FuzzTest", "fuzztest\FuzzTest.vcxproj", "{5637C116-ABF5-4274-A71F-34433713A538}"
-EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "benchmark", "benchmark\benchmark.vcxproj", "{F961EC29-4ACE-4D5E-B7ED-55681A678A90}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "AflFuzzTest", "fuzzing\afl\AflFuzzTest.vcxproj", "{5637C116-ABF5-4274-A71F-34433713A538}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "LibFuzzerTest", "fuzzing\libfuzzer\LibFuzzerTest.vcxproj", "{0F21D958-FE76-469A-8562-5D05F9EFE8D1}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Checked|ARM64 = Checked|ARM64
@@ -138,6 +140,15 @@ Global
 		{E09F024E-A125-48AA-8E9D-7D1302BEAC97}.Release|x64.Build.0 = Release|x64
 		{E09F024E-A125-48AA-8E9D-7D1302BEAC97}.Release|x86.ActiveCfg = Release|Win32
 		{E09F024E-A125-48AA-8E9D-7D1302BEAC97}.Release|x86.Build.0 = Release|Win32
+		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Checked|ARM64.ActiveCfg = Checked|ARM64
+		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Checked|x64.ActiveCfg = Checked|x64
+		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Checked|x86.ActiveCfg = Checked|Win32
+		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Debug|x64.ActiveCfg = Debug|x64
+		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Debug|x86.ActiveCfg = Debug|Win32
+		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Release|ARM64.ActiveCfg = Release|ARM64
+		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Release|x64.ActiveCfg = Release|x64
+		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Release|x86.ActiveCfg = Release|Win32
 		{5637C116-ABF5-4274-A71F-34433713A538}.Checked|ARM64.ActiveCfg = Checked|ARM64
 		{5637C116-ABF5-4274-A71F-34433713A538}.Checked|ARM64.Build.0 = Checked|ARM64
 		{5637C116-ABF5-4274-A71F-34433713A538}.Checked|x64.ActiveCfg = Checked|x64
@@ -156,15 +167,15 @@ Global
 		{5637C116-ABF5-4274-A71F-34433713A538}.Release|x64.Build.0 = Release|x64
 		{5637C116-ABF5-4274-A71F-34433713A538}.Release|x86.ActiveCfg = Release|Win32
 		{5637C116-ABF5-4274-A71F-34433713A538}.Release|x86.Build.0 = Release|Win32
-		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Checked|ARM64.ActiveCfg = Checked|ARM64
-		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Checked|x64.ActiveCfg = Checked|x64
-		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Checked|x86.ActiveCfg = Checked|Win32
-		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Debug|ARM64.ActiveCfg = Debug|ARM64
-		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Debug|x64.ActiveCfg = Debug|x64
-		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Debug|x86.ActiveCfg = Debug|Win32
-		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Release|ARM64.ActiveCfg = Release|ARM64
-		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Release|x64.ActiveCfg = Release|x64
-		{F961EC29-4ACE-4D5E-B7ED-55681A678A90}.Release|x86.ActiveCfg = Release|Win32
+		{0F21D958-FE76-469A-8562-5D05F9EFE8D1}.Checked|ARM64.ActiveCfg = Checked|x64
+		{0F21D958-FE76-469A-8562-5D05F9EFE8D1}.Checked|x64.ActiveCfg = Checked|x64
+		{0F21D958-FE76-469A-8562-5D05F9EFE8D1}.Checked|x86.ActiveCfg = Checked|Win32
+		{0F21D958-FE76-469A-8562-5D05F9EFE8D1}.Debug|ARM64.ActiveCfg = Debug|x64
+		{0F21D958-FE76-469A-8562-5D05F9EFE8D1}.Debug|x64.ActiveCfg = Debug|x64
+		{0F21D958-FE76-469A-8562-5D05F9EFE8D1}.Debug|x86.ActiveCfg = Debug|Win32
+		{0F21D958-FE76-469A-8562-5D05F9EFE8D1}.Release|ARM64.ActiveCfg = Release|x64
+		{0F21D958-FE76-469A-8562-5D05F9EFE8D1}.Release|x64.ActiveCfg = Release|x64
+		{0F21D958-FE76-469A-8562-5D05F9EFE8D1}.Release|x86.ActiveCfg = Release|Win32
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

diff --git a/benchmark/benchmark.vcxproj b/benchmark/benchmark.vcxproj
@@ -39,7 +39,7 @@
     </ProjectConfiguration>
   </ItemGroup>
   <PropertyGroup Label="Globals">
-    <VCProjectVersion>16.0</VCProjectVersion>
+    <VCProjectVersion>17.0</VCProjectVersion>
     <Keyword>Win32Proj</Keyword>
     <ProjectGuid>{f961ec29-4ace-4d5e-b7ed-55681a678a90}</ProjectGuid>
     <RootNamespace>benchmark</RootNamespace>
@@ -54,34 +54,13 @@
   <PropertyGroup>
     <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
   </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
-    <UseDebugLibraries>true</UseDebugLibraries>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Checked|Win32'" Label="Configuration">
-    <UseDebugLibraries>true</UseDebugLibraries>
-  </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-    <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
   </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
-    <UseDebugLibraries>true</UseDebugLibraries>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'" Label="Configuration">
-    <UseDebugLibraries>true</UseDebugLibraries>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Checked|x64'" Label="Configuration">
-    <UseDebugLibraries>true</UseDebugLibraries>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Checked|ARM64'" Label="Configuration">
-    <UseDebugLibraries>true</UseDebugLibraries>
-  </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
-    <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'" Label="Configuration">
-    <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
@@ -146,122 +125,65 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
-      <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <TreatAngleIncludeAsExternal>true</TreatAngleIncludeAsExternal>
       <DisableAnalyzeExternal>true</DisableAnalyzeExternal>
     </ClCompile>
-    <Link>
-      <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-    </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Checked|Win32'">
     <ClCompile>
-      <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <TreatAngleIncludeAsExternal>true</TreatAngleIncludeAsExternal>
       <DisableAnalyzeExternal>true</DisableAnalyzeExternal>
     </ClCompile>
-    <Link>
-      <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-    </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <TreatAngleIncludeAsExternal>true</TreatAngleIncludeAsExternal>
       <DisableAnalyzeExternal>true</DisableAnalyzeExternal>
     </ClCompile>
-    <Link>
-      <SubSystem>Console</SubSystem>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <OptimizeReferences>true</OptimizeReferences>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-    </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
-      <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <TreatAngleIncludeAsExternal>true</TreatAngleIncludeAsExternal>
       <DisableAnalyzeExternal>true</DisableAnalyzeExternal>
     </ClCompile>
-    <Link>
-      <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-    </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">
     <ClCompile>
-      <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <TreatAngleIncludeAsExternal>true</TreatAngleIncludeAsExternal>
       <DisableAnalyzeExternal>true</DisableAnalyzeExternal>
     </ClCompile>
-    <Link>
-      <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-    </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Checked|x64'">
     <ClCompile>
-      <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <TreatAngleIncludeAsExternal>true</TreatAngleIncludeAsExternal>
       <DisableAnalyzeExternal>true</DisableAnalyzeExternal>
     </ClCompile>
-    <Link>
-      <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-    </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Checked|ARM64'">
     <ClCompile>
-      <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <TreatAngleIncludeAsExternal>true</TreatAngleIncludeAsExternal>
       <DisableAnalyzeExternal>true</DisableAnalyzeExternal>
     </ClCompile>
-    <Link>
-      <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-    </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <TreatAngleIncludeAsExternal>true</TreatAngleIncludeAsExternal>
       <DisableAnalyzeExternal>true</DisableAnalyzeExternal>
     </ClCompile>
-    <Link>
-      <SubSystem>Console</SubSystem>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <OptimizeReferences>true</OptimizeReferences>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-    </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">
     <ClCompile>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <TreatAngleIncludeAsExternal>true</TreatAngleIncludeAsExternal>
       <DisableAnalyzeExternal>true</DisableAnalyzeExternal>
     </ClCompile>
     <Link>
-      <SubSystem>Console</SubSystem>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>

diff --git a/fuzztest/FuzzTest.vcxproj → fuzzing/afl/AflFuzzTest.vcxproj b/fuzztest/FuzzTest.vcxproj → fuzzing/afl/AflFuzzTest.vcxproj
@@ -39,7 +39,7 @@
     </ProjectConfiguration>
   </ItemGroup>
   <PropertyGroup Label="Globals">
-    <VCProjectVersion>16.0</VCProjectVersion>
+    <VCProjectVersion>17.0</VCProjectVersion>
     <ProjectGuid>{5637C116-ABF5-4274-A71F-34433713A538}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <ConfigurationType>Application</ConfigurationType>
@@ -53,12 +53,13 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <WholeProgramOptimization>true</WholeProgramOptimization>
   </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'" Label="Configuration" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Checked|x64'" Label="Configuration" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Checked|ARM64'" Label="Configuration" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <WholeProgramOptimization>true</WholeProgramOptimization>
+    <EnableASAN>true</EnableASAN>
+    <EnableFuzzer>true</EnableFuzzer>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'" Label="Configuration">
     <WholeProgramOptimization>true</WholeProgramOptimization>
@@ -78,7 +79,7 @@
     <ClCompile Include="main.cpp" />
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\src\CharLS.vcxproj">
+    <ProjectReference Include="..\..\src\CharLS.vcxproj">
       <Project>{1e31f9f1-f175-4082-b3e2-b1f0eca3f44c}</Project>
     </ProjectReference>
   </ItemGroup>

diff --git a/fuzztest/FuzzTest.vcxproj.filters → fuzzing/afl/AflFuzzTest.vcxproj.filters b/fuzztest/FuzzTest.vcxproj.filters → fuzzing/afl/AflFuzzTest.vcxproj.filters
diff --git a/fuzzing/afl/CMakeLists.txt b/fuzzing/afl/CMakeLists.txt
@@ -0,0 +1,15 @@
+# Copyright (c) Team CharLS.
+# SPDX-License-Identifier: BSD-3-Clause
+
+add_executable(afl-fuzztest "")
+
+target_sources(afl-fuzztest PRIVATE main.cpp)
+
+set_target_properties(afl-fuzztest PROPERTIES CXX_VISIBILITY_PRESET hidden)
+
+target_link_libraries(afl-fuzztest PRIVATE charls)
+
+if(MSVC)
+  # AFL uses POSIX functions: disable warning about potential unsafe methods.
+  target_compile_definitions(afl-fuzztest PRIVATE _CRT_SECURE_NO_WARNINGS)
+endif()
diff --git a/fuzztest/main.cpp → fuzzing/afl/main.cpp b/fuzztest/main.cpp → fuzzing/afl/main.cpp
@@ -113,7 +113,7 @@ int main(const int argc, const char* const argv[]) // NOLINT(bugprone-exception-
             vector<uint8_t> destination;
             jpegls_decoder::decode(source, destination);
         }
-        catch (const jpegls_error&)
+        catch (const jpegls_error&)  // NOLINT(bugprone-empty-catch)
         {
         }
     }

diff --git a/fuzzing/libfuzzer/CMakeLists.txt b/fuzzing/libfuzzer/CMakeLists.txt
@@ -0,0 +1,16 @@
+# Copyright (c) Team CharLS.
+# SPDX-License-Identifier: BSD-3-Clause
+
+add_executable(libfuzzer-fuzztest "")
+
+target_sources(libfuzzer-fuzztest PRIVATE main.cpp)
+
+set_target_properties(libfuzzer-fuzztest PROPERTIES CXX_VISIBILITY_PRESET hidden)
+
+target_link_libraries(libfuzzer-fuzztest PRIVATE charls)
+
+target_compile_options(libfuzzer-fuzztest PRIVATE "-fsanitize=fuzzer,address")
+
+if(NOT MSVC)
+  target_link_options(libfuzzer-fuzztest PRIVATE "-fsanitize=fuzzer,address")
+endif()