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cmake: Check if the linker supports version scripts

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Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Andreas Schneider
2018-08-24 15:36:43 +02:00
parent d0f3cdfa10
commit 4de8ed684b
2 changed files with 18 additions and 4 deletions
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14
ConfigureChecks.cmake
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@ -369,6 +369,20 @@ int main(void) {
# Stop treating warnings as errors # Stop treating warnings as errors
unset(CMAKE_REQUIRED_FLAGS) unset(CMAKE_REQUIRED_FLAGS)
# Check for version script support
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map" "VERS_1 {
global: sym;
};
VERS_2 {
global: sym;
} VERS_1;
")
set(CMAKE_REQUIRED_FLAGS "-Wl,--version-script=\"${CMAKE_CURRENT_BINARY_DIR}/conftest.map\"")
check_c_source_compiles("int main(void) { return 0; }" HAVE_LD_VERSION_SCRIPT)
unset(CMAKE_REQUIRED_FLAGS)
file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map")
if (WITH_DEBUG_CRYPTO) if (WITH_DEBUG_CRYPTO)
set(DEBUG_CRYPTO 1) set(DEBUG_CRYPTO 1)
endif (WITH_DEBUG_CRYPTO) endif (WITH_DEBUG_CRYPTO)

8
src/CMakeLists.txt
View File

@ -266,7 +266,7 @@ include_directories(
# Set the path to the default map file # Set the path to the default map file
set(MAP_PATH "${CMAKE_CURRENT_SOURCE_DIR}/${PROJECT_NAME}.map") set(MAP_PATH "${CMAKE_CURRENT_SOURCE_DIR}/${PROJECT_NAME}.map")
if (WITH_SYMBOL_VERSIONING AND ABIMAP_FOUND) if (WITH_SYMBOL_VERSIONING AND HAVE_LD_VERSION_SCRIPT AND ABIMAP_FOUND)
# Get the list of header files # Get the list of header files
get_file_list("dev_header_list" get_file_list("dev_header_list"
DIRECTORIES "${LIBSSH_PUBLIC_INCLUDE_DIRS}/libssh" DIRECTORIES "${LIBSSH_PUBLIC_INCLUDE_DIRS}/libssh"
@ -292,14 +292,14 @@ if (WITH_SYMBOL_VERSIONING AND ABIMAP_FOUND)
${libssh_SRCS} ${libssh_SRCS}
${PROJECT_NAME}_dev.map ${PROJECT_NAME}_dev.map
) )
endif (WITH_SYMBOL_VERSIONING AND ABIMAP_FOUND) endif (WITH_SYMBOL_VERSIONING AND HAVE_LD_VERSION_SCRIPT AND ABIMAP_FOUND)
add_library(${LIBSSH_SHARED_LIBRARY} SHARED ${libssh_SRCS}) add_library(${LIBSSH_SHARED_LIBRARY} SHARED ${libssh_SRCS})
target_compile_options(${LIBSSH_SHARED_LIBRARY} PRIVATE ${DEFAULT_C_COMPILE_FLAGS}) target_compile_options(${LIBSSH_SHARED_LIBRARY} PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
target_link_libraries(${LIBSSH_SHARED_LIBRARY} ${LIBSSH_LINK_LIBRARIES}) target_link_libraries(${LIBSSH_SHARED_LIBRARY} ${LIBSSH_LINK_LIBRARIES})
if (WITH_SYMBOL_VERSIONING) if (WITH_SYMBOL_VERSIONING AND HAVE_LD_VERSION_SCRIPT)
if (ABIMAP_FOUND) if (ABIMAP_FOUND)
# Change path to devel map file # Change path to devel map file
set(MAP_PATH "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}_dev.map") set(MAP_PATH "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}_dev.map")
@ -308,7 +308,7 @@ if (WITH_SYMBOL_VERSIONING)
set_target_properties(${LIBSSH_SHARED_LIBRARY} set_target_properties(${LIBSSH_SHARED_LIBRARY}
PROPERTIES LINK_FLAGS PROPERTIES LINK_FLAGS
"-Wl,--version-script,\"${MAP_PATH}\"") "-Wl,--version-script,\"${MAP_PATH}\"")
endif (WITH_SYMBOL_VERSIONING) endif (WITH_SYMBOL_VERSIONING AND HAVE_LD_VERSION_SCRIPT)
set_target_properties( set_target_properties(
${LIBSSH_SHARED_LIBRARY} ${LIBSSH_SHARED_LIBRARY}