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include (CheckCSourceCompiles)
include (CMakePushCheckState)
include (MongoSettings)
mongo_setting (
MONGO_SANITIZE "Semicolon/comma-separated list of sanitizers to apply when building"
DEFAULT
DEVEL EVAL [[
if(NOT MSVC)
set(DEFAULT "address,undefined")
endif()
]])
mongo_bool_setting(
MONGO_FUZZ "Enable libFuzzer integration (Requires a C++ compiler)"
DEFAULT VALUE OFF
VALIDATE CODE [[
if (MONGO_FUZZ AND NOT ENABLE_STATIC)
message (FATAL_ERROR "MONGO_FUZZ requires ENABLE_STATIC=ON or ENABLE_STATIC=BUILD_ONLY")
endif ()
]]
)
if (MONGO_FUZZ)
set(mongo_fuzz_options "address,undefined,fuzzer-no-link")
if (MONGO_SANITIZE AND NOT "${MONGO_SANITIZE}" STREQUAL "${mongo_fuzz_options}")
message(WARNING "Overriding user-provided MONGO_SANITIZE options due to MONGO_FUZZ=ON")
endif ()
set_property (CACHE MONGO_SANITIZE PROPERTY VALUE "${mongo_fuzz_options}")
endif ()
# Replace commas with semicolons for the genex
string(REPLACE ";" "," _sanitize "${MONGO_SANITIZE}")
if (_sanitize)
string (MAKE_C_IDENTIFIER "HAVE_SANITIZE_${_sanitize}" ident)
string (TOUPPER "${ident}" varname)
set (flag -fsanitize=${_sanitize} -fno-sanitize-recover=all)
cmake_push_check_state ()
set (CMAKE_REQUIRED_FLAGS "${flag}")
set (CMAKE_REQUIRED_LIBRARIES "${flag}")
check_c_source_compiles ([[
#include <stdio.h>
int main (void) {
puts ("Hello, world!");
return 0;
}
]] "${varname}")
cmake_pop_check_state ()
if (NOT "${${varname}}")
message (SEND_ERROR "Requested sanitizer option '${flag}' is not supported by the compiler+linker")
else ()
message (STATUS "Enabling sanitizers: ${flag}")
mongo_platform_compile_options ($<BUILD_INTERFACE:${flag}>)
mongo_platform_link_options (${flag})
endif ()
endif ()
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