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CMakeLists.txt
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cmake_minimum_required (VERSION 3.0)
project (s2n)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
set(INSTALL_LIB_DIR lib CACHE PATH "Installaction directory for libraries")
set(INSTALL_INCLUDE_DIR include CACHE PATH "installaction directory for header files")
set(INSTALL_CMAKE_DIR lib/cmake CACHE PATH "Installation directory for cmake files")
##header files
file(GLOB API_HEADERS
"api/*.h"
)
file(GLOB CRYPTO_HEADERS
"crypto/*.h"
)
file(GLOB ERROR_HEADERS
"error/*.h"
)
file(GLOB STUFFER_HEADERS
"stuffer/*.h"
)
file(GLOB TLS_HEADERS
"tls/*.h"
)
file(GLOB UTILS_HEADERS
"utils/*.h"
)
##source files
file(GLOB CRYPTO_SRC
"crypto/*.c"
)
file(GLOB ERROR_SRC
"error/*.c"
)
file(GLOB STUFFER_SRC
"stuffer/*.c"
)
file(GLOB TLS_SRC
"tls/*.c"
)
file(GLOB UTILS_SRC
"utils/*.c"
)
##be nice to visual studio users
if(MSVC)
source_group("Header Files\\s2n\\api" FILES ${API_HEADERS})
source_group("Header Files\\s2n\\crypto" FILES ${CRYPTO_HEADERS})
source_group("Header Files\\s2n\\error" FILES ${ERROR_HEADERS})
source_group("Header Files\\s2n\\stuffer" FILES ${STUFFER_HEADERS})
source_group("Header Files\\s2n\\tls" FILES ${TLS_HEADERS})
source_group("Header Files\\s2n\\utils" FILES ${UTILS_HEADERS})
source_group("Source Files\\crypto" FILES ${CRYPTO_SRC})
source_group("Source Files\\error" FILES ${ERROR_SRC})
source_group("Source Files\\stuffer" FILES ${STUFFER_SRC})
source_group("Source Files\\tls" FILES ${TLS_SRC})
source_group("Source Files\\utils" FILES ${UTILS_SRC})
endif()
if(APPLE)
set(OS_LIBS c pthread)
elseif(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
set(OS_LIBS thr)
elseif(CMAKE_SYSTEM_NAME STREQUAL "NetBSD")
set(OS_LIBS pthread)
else()
set(OS_LIBS pthread dl rt)
endif()
file(GLOB S2N_HEADERS
${API_HEADERS}
${CRYPTO_HEADERS}
${ERROR_HEADERS}
${STUFFER_HEADERS}
${TLS_HEADERS}
${UTILS_HEADERS}
)
file(GLOB S2N_SRC
${CRYPTO_SRC}
${ERROR_SRC}
${STUFFER_SRC}
${TLS_SRC}
${UTILS_SRC}
)
add_library(s2n ${S2N_HEADERS} ${S2N_SRC})
set_target_properties(s2n PROPERTIES LINKER_LANGUAGE C)
set(CMAKE_C_FLAGS_DEBUGOPT "")
target_compile_options(s2n PRIVATE -pedantic -std=c99 -Wall -Werror -Wimplicit -Wunused -Wcomment -Wchar-subscripts -Wuninitialized -Wshadow -Wcast-qual -Wcast-align -Wwrite-strings -Wno-deprecated-declarations -Wno-unknown-pragmas -Wformat-security)
target_compile_options(s2n PUBLIC -fPIC)
target_compile_definitions(s2n PRIVATE -D_POSIX_C_SOURCE=200809L)
if(CMAKE_BUILD_TYPE MATCHES Release)
target_compile_definitions(s2n PRIVATE -D_FORTIFY_SOURCE=2)
endif()
if(NO_STACK_PROTECTOR)
target_compile_options(s2n PRIVATE -Wstack-protector -fstack-protector-all)
endif()
if(S2N_UNSAFE_FUZZING_MODE)
target_compile_options(s2n PRIVATE -fsanitize-coverage=trace-pc-guard -fsanitize=address,undefined,leak)
endif()
set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules)
find_package(LibCrypto REQUIRED)
target_link_libraries(s2n PRIVATE LibCrypto::Crypto PRIVATE ${OS_LIBS} m)
target_include_directories(s2n PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
target_include_directories(s2n PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/api> $<INSTALL_INTERFACE:include>)
target_include_directories(s2n PUBLIC $<TARGET_PROPERTY:LibCrypto::Crypto,INTERFACE_INCLUDE_DIRECTORIES>)
file(GLOB TESTLIB_SRC "tests/testlib/*.c")
file(GLOB TESTLIB_HEADERS "tests/testlib/*.h")
add_library(testss2n ${TESTLIB_HEADERS} ${TESTLIB_SRC})
target_include_directories(testss2n PRIVATE tests)
target_compile_options(testss2n PRIVATE -std=c99)
target_link_libraries(testss2n PUBLIC s2n)
#run unit tests
file (GLOB TEST_LD_PRELOAD "tests/LD_PRELOAD/*.c")
add_library(allocator_overrides SHARED ${TEST_LD_PRELOAD})
include(CTest)
enable_testing()
file(GLOB UNITTESTS_SRC "tests/unit/*.c")
foreach(test_case ${UNITTESTS_SRC})
string(REGEX REPLACE ".+\\/(.+)\\.c" "\\1" test_case_name ${test_case})
add_executable(${test_case_name} ${test_case})
target_link_libraries(${test_case_name} PRIVATE testss2n PRIVATE m pthread)
target_include_directories(${test_case_name} PRIVATE api)
target_include_directories(${test_case_name} PRIVATE ./)
target_include_directories(${test_case_name} PRIVATE tests)
target_compile_options(${test_case_name} PRIVATE -Wno-implicit-function-declaration -D_POSIX_C_SOURCE=200809L -std=c99)
add_test(NAME ${test_case_name} COMMAND $<TARGET_FILE:${test_case_name}> WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/tests/unit)
set_property(
TEST
${test_case_name}
PROPERTY
ENVIRONMENT LD_PRELOAD=$<TARGET_FILE:allocator_overrides>)
endforeach(test_case)
add_executable(s2nc "bin/s2nc.c" "bin/echo.c")
target_link_libraries(s2nc s2n)
target_include_directories(s2nc PRIVATE api)
target_compile_options(s2nc PRIVATE -std=c99 -D_POSIX_C_SOURCE=200112L)
add_executable(s2nd "bin/s2nd.c" "bin/echo.c")
target_link_libraries(s2nd s2n)
target_include_directories(s2nd PRIVATE api)
target_compile_options(s2nd PRIVATE -std=c99 -D_POSIX_C_SOURCE=200112L)
#install the s2n files
set_target_properties(s2n PROPERTIES PUBLIC_HEADER "${API_HEADERS}")
install (
TARGETS s2n
EXPORT "s2nTargets"
ARCHIVE DESTINATION lib
LIBRARY DESTINATION lib
PUBLIC_HEADER DESTINATION "${INSTALL_INCLUDE_DIR}"
COMPONENT dev
)
export(TARGETS s2n FILE "s2nTargets.cmake")
export(PACKAGE s2n)
if(LibCrypto_ROOT_DIR)
set(NON_SYS_LIB_CRYPTO_ROOT "${LibCrypto_ROOT_DIR}")
endif()
#for build output
set(CONF_INCLUDE_DIRS "${CMAKE_CURRENT_SOURCE_DIR}")
configure_file(s2nConfig.cmake.in "${CMAKE_BINARY_DIR}/s2nConfig.cmake" @ONLY)
#for install output
set(CONF_INCLUDE_DIRS "\${S2N_CMAKE_DIR}/${REL_INCLUDE_DIR}")
configure_file(s2nConfig.cmake.in
"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/s2nConfig.cmake" @ONLY)
file(COPY "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules/FindLibCrypto.cmake" DESTINATION "${CMAKE_BINARY_DIR}")
file(RENAME "${CMAKE_BINARY_DIR}/FindLibCrypto.cmake" "${CMAKE_BINARY_DIR}/LibCryptoConfig.cmake")
install(FILES
"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/s2nConfig.cmake"
DESTINATION "${INSTALL_CMAKE_DIR}/s2n" COMPONENT dev)
install(FILES
"${CMAKE_BINARY_DIR}/LibCryptoConfig.cmake"
DESTINATION "${INSTALL_CMAKE_DIR}/LibCrypto" COMPONENT dev)
#install the cmake finder
install(EXPORT s2nTargets DESTINATION "${INSTALL_CMAKE_DIR}/s2n" COMPONENT dev)