Make lwIP CMake build/link with sanitizers

But leave them disabled for now

ports/CMakeCommon.cmake

@@ -70,9 +70,10 @@ if(CMAKE_C_COMPILER_ID STREQUAL GNU)
 #            -fsanitize=address
 #            -fsanitize=undefined
 #            -fno-sanitize=alignment
-            -fstack-protector
-            -fstack-check
+#            -fstack-protector
+#            -fstack-check
             )
+#        set(LWIP_SANITIZER_LIBS asan ubsan)
     endif()
     set(LWIP_COMPILER_FLAGS ${LWIP_COMPILER_FLAGS_GNU_CLANG})
 endif()
@@ -86,6 +87,7 @@ if(CMAKE_C_COMPILER_ID STREQUAL Clang)
         -Wno-documentation-deprecated-sync
         )
     set(LWIP_COMPILER_FLAGS ${LWIP_COMPILER_FLAGS_GNU_CLANG})
+#    set(LWIP_SANITIZER_LIBS asan ubsan)
 endif()
 
 if(CMAKE_C_COMPILER_ID STREQUAL MSVC)

ports/unix/check/CMakeLists.txt

@@ -36,7 +36,7 @@ target_compile_definitions(lwip_unittests PRIVATE ${LWIP_DEFINITIONS} ${LWIP_MBE
 
 find_library(LIBCHECK check)
 find_library(LIBM m)
-target_link_libraries(lwip_unittests lwipallapps lwipcore ${LIBCHECK} ${LIBM})
+target_link_libraries(lwip_unittests ${LWIP_SANITIZER_LIBS} lwipallapps lwipcore ${LIBCHECK} ${LIBM})
 
 if (NOT CMAKE_SYSTEM_NAME STREQUAL Darwin)
     # check installed via brew on Darwin doesn't have a separate subunit library (must be statically linked)

ports/unix/example_app/CMakeLists.txt

@@ -25,8 +25,9 @@ add_executable(example_app ${LWIP_CONTRIB_DIR}/examples/example_app/test.c defau
 target_include_directories(example_app PRIVATE ${LWIP_INCLUDE_DIRS})
 target_compile_options(example_app PRIVATE ${LWIP_COMPILER_FLAGS})
 target_compile_definitions(example_app PRIVATE ${LWIP_DEFINITIONS} ${LWIP_MBEDTLS_DEFINITIONS})
-target_link_libraries(example_app lwipcontribexamples lwipcontribapps lwipcontribaddons lwipallapps lwipcontribportunix lwipcore)
+target_link_libraries(example_app ${LWIP_SANITIZER_LIBS} lwipcontribexamples lwipcontribapps lwipcontribaddons lwipallapps lwipcontribportunix lwipcore)
 
 add_executable(makefsdata ${lwipmakefsdata_SRCS})
 target_compile_options(makefsdata PRIVATE ${LWIP_COMPILER_FLAGS})
 target_include_directories(makefsdata PRIVATE ${LWIP_INCLUDE_DIRS})
+target_link_libraries(makefsdata ${LWIP_SANITIZER_LIBS})

ports/unix/lib/CMakeLists.txt

@@ -28,6 +28,7 @@ add_library(lwip ${lwipnoapps_SRCS} ${lwipcontribportunix_SRCS} ${lwipcontribpor
 target_compile_options(lwip PRIVATE ${LWIP_COMPILER_FLAGS})
 target_compile_definitions(lwip PRIVATE ${LWIP_DEFINITIONS} ${LWIP_MBEDTLS_DEFINITIONS})
 target_include_directories(lwip PRIVATE ${LWIP_INCLUDE_DIRS} ${LWIP_MBEDTLS_INCLUDE_DIRS})
+target_link_libraries(lwip ${LWIP_SANITIZER_LIBS})
 
 find_library(LIBPTHREAD pthread)
 target_link_libraries(lwip ${LIBPTHREAD})

ports/win32/example_app/CMakeLists.txt

@@ -25,9 +25,9 @@ add_executable(example_app ${LWIP_CONTRIB_DIR}/examples/example_app/test.c defau
 target_include_directories(example_app PRIVATE ${LWIP_INCLUDE_DIRS})
 target_compile_options(example_app PRIVATE ${LWIP_COMPILER_FLAGS})
 target_compile_definitions(example_app PRIVATE ${LWIP_DEFINITIONS} ${LWIP_MBEDTLS_DEFINITIONS})
-target_link_libraries(example_app lwipcontribexamples lwipcontribapps lwipcontribaddons lwipallapps lwipcore lwipcontribportwindows)
+target_link_libraries(example_app ${LWIP_SANITIZER_LIBS} lwipcontribexamples lwipcontribapps lwipcontribaddons lwipallapps lwipcore lwipcontribportwindows)
 
 add_executable(makefsdata ${lwipmakefsdata_SRCS})
 target_compile_options(makefsdata PRIVATE ${LWIP_COMPILER_FLAGS})
 target_include_directories(makefsdata PRIVATE ${LWIP_INCLUDE_DIRS})
-target_link_libraries(makefsdata lwipcore lwipcontribportwindows)
+target_link_libraries(makefsdata ${LWIP_SANITIZER_LIBS} lwipcore lwipcontribportwindows)