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1# Copyright (c) 2021 Google LLC
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#     http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14
15function(add_spvtools_libfuzzer_target)
16  set(one_value_args TARGET)
17  set(multi_value_args SRCS LIBS)
18  cmake_parse_arguments(
19    ARG "" "${one_value_args}" "${multi_value_args}" ${ARGN})
20
21  add_executable(${ARG_TARGET} ${ARG_SRCS})
22  spvtools_default_compile_options(${ARG_TARGET})
23  target_link_libraries(${ARG_TARGET} PRIVATE ${ARG_LIBS})
24  target_include_directories(${ARG_TARGET} PRIVATE
25    ${spirv-tools_SOURCE_DIR}
26    ${spirv-tools_BINARY_DIR}
27  )
28  set_property(TARGET ${ARG_TARGET} PROPERTY FOLDER "SPIRV-Tools libFuzzer targets")
29  if(NOT ${SPIRV_LIB_FUZZING_ENGINE_LINK_OPTIONS} STREQUAL "")
30    # This is set when the fuzzers are being built by OSS-Fuzz. In this case the
31    # variable provides the necessary linker flags, and OSS-Fuzz will take care
32    # of passing suitable compiler flags.
33    target_link_options(${ARG_TARGET} PRIVATE ${SPIRV_LIB_FUZZING_ENGINE_LINK_OPTIONS})
34  else()
35    # When the fuzzers are being built outside of OSS-Fuzz, standard libFuzzer
36    # arguments to enable fuzzing are used.
37    target_compile_options(${ARG_TARGET} PRIVATE "-fsanitize=fuzzer")
38    target_link_options(${ARG_TARGET} PRIVATE "-fsanitize=fuzzer")
39  endif()
40endfunction()
41
42if (${SPIRV_BUILD_LIBFUZZER_TARGETS})
43  if(NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
44    message(FATAL_ERROR "The libFuzzer targets are only supported with the Clang compiler. Compiler '${CMAKE_CXX_COMPILER_ID}' is not supported!")
45  endif()
46  add_spvtools_libfuzzer_target(TARGET spvtools_as_fuzzer SRCS spvtools_as_fuzzer.cpp random_generator.cpp LIBS ${SPIRV_TOOLS_FULL_VISIBILITY})
47  add_spvtools_libfuzzer_target(TARGET spvtools_binary_parser_fuzzer SRCS spvtools_binary_parser_fuzzer.cpp random_generator.cpp LIBS ${SPIRV_TOOLS_FULL_VISIBILITY})
48  add_spvtools_libfuzzer_target(TARGET spvtools_dis_fuzzer SRCS spvtools_dis_fuzzer.cpp random_generator.cpp LIBS ${SPIRV_TOOLS_FULL_VISIBILITY})
49  add_spvtools_libfuzzer_target(TARGET spvtools_opt_legalization_fuzzer SRCS spvtools_opt_legalization_fuzzer.cpp spvtools_opt_fuzzer_common.cpp random_generator.cpp LIBS SPIRV-Tools-opt ${SPIRV_TOOLS_FULL_VISIBILITY})
50  add_spvtools_libfuzzer_target(TARGET spvtools_opt_performance_fuzzer SRCS spvtools_opt_performance_fuzzer.cpp spvtools_opt_fuzzer_common.cpp random_generator.cpp LIBS SPIRV-Tools-opt ${SPIRV_TOOLS_FULL_VISIBILITY})
51  add_spvtools_libfuzzer_target(TARGET spvtools_opt_size_fuzzer SRCS spvtools_opt_size_fuzzer.cpp spvtools_opt_fuzzer_common.cpp random_generator.cpp LIBS SPIRV-Tools-opt ${SPIRV_TOOLS_FULL_VISIBILITY})
52  add_spvtools_libfuzzer_target(TARGET spvtools_val_fuzzer SRCS spvtools_val_fuzzer.cpp random_generator.cpp LIBS ${SPIRV_TOOLS_FULL_VISIBILITY})
53  if (${SPIRV_BUILD_FUZZER})
54    add_spvtools_libfuzzer_target(TARGET spvtools_fuzz_fuzzer SRCS spvtools_fuzz_fuzzer.cpp random_generator.cpp LIBS SPIRV-Tools-fuzz ${SPIRV_TOOLS_FULL_VISIBILITY})
55  endif()
56endif()
57