129 lines
4.6 KiB
CMake
129 lines
4.6 KiB
CMake
# Copyright 2019 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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set(workdir "${CMAKE_BINARY_DIR}/_deps/libcap-populate")
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set(SAPI_LIBCAP_URL
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https://www.kernel.org/pub/linux/libs/security/linux-privs/libcap2/libcap-2.27.tar.gz
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CACHE STRING "")
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set(SAPI_LIBCAP_URL_HASH
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SHA256=260b549c154b07c3cdc16b9ccc93c04633c39f4fb6a4a3b8d1fa5b8a9c3f5fe8
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CACHE STRING "") # 2019-04-16
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set(SAPI_LIBCAP_SOURCE_DIR "${CMAKE_BINARY_DIR}/_deps/libcap-src"
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CACHE STRING "")
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set(SAPI_LIBCAP_BINARY_DIR "${CMAKE_BINARY_DIR}/_deps/libcap-build"
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CACHE STRING "")
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file(WRITE "${workdir}/CMakeLists.txt" "\
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cmake_minimum_required(VERSION ${CMAKE_VERSION})
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project(libcap-populate NONE)
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include(ExternalProject)
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ExternalProject_Add(libcap
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URL \"${SAPI_LIBCAP_URL}\"
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URL_HASH \"${SAPI_LIBCAP_URL_HASH}\"
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SOURCE_DIR \"${SAPI_LIBCAP_SOURCE_DIR}\"
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BINARY_DIR \"${SAPI_LIBCAP_BINARY_DIR}\"
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CONFIGURE_COMMAND \"\"
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BUILD_COMMAND \"\"
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INSTALL_COMMAND \"\"
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TEST_COMMAND \"\"
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)
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")
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execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
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RESULT_VARIABLE error
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WORKING_DIRECTORY "${workdir}")
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if(error)
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message(FATAL_ERROR "CMake step for ${PROJECT_NAME} failed: ${error}")
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endif()
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execute_process(COMMAND ${CMAKE_COMMAND} --build .
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RESULT_VARIABLE error
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WORKING_DIRECTORY "${workdir}")
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if(error)
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message(FATAL_ERROR "Build step for ${PROJECT_NAME} failed: ${error}")
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endif()
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set(libcap_INCLUDE_DIR "${SAPI_LIBCAP_SOURCE_DIR}/libcap/include")
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add_custom_command(OUTPUT ${SAPI_LIBCAP_SOURCE_DIR}/libcap/cap_names.list.h
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VERBATIM
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COMMAND # Use the same logic as libcap/Makefile
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sed -ne [=[/^#define[ \\t]CAP[_A-Z]\+[ \\t]\+[0-9]\+/{s/^#define \([^ \\t]*\)[ \\t]*\([^ \\t]*\)/\{\"\1\",\2\},/p;}]=]
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/include/uapi/linux/capability.h |
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tr [:upper:] [:lower:] > ${SAPI_LIBCAP_SOURCE_DIR}/libcap/cap_names.list.h
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)
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if (CMAKE_CROSSCOMPILING AND BUILD_C_COMPILER)
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add_custom_command(OUTPUT ${SAPI_LIBCAP_SOURCE_DIR}/libcap/libcap_makenames
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VERBATIM
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# Use the same logic as libcap/Makefile
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COMMAND ${BUILD_C_COMPILER} ${BUILD_C_FLAGS}
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/_makenames.c
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-o ${SAPI_LIBCAP_SOURCE_DIR}/libcap/libcap_makenames
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DEPENDS ${SAPI_LIBCAP_SOURCE_DIR}/libcap/cap_names.list.h
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/_makenames.c
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)
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add_custom_command(OUTPUT ${SAPI_LIBCAP_SOURCE_DIR}/libcap/cap_names.h
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COMMAND ${SAPI_LIBCAP_SOURCE_DIR}/libcap/libcap_makenames >
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/cap_names.h
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DEPENDS ${SAPI_LIBCAP_SOURCE_DIR}/libcap/libcap_makenames
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)
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else()
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add_executable(libcap_makenames
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/cap_names.list.h
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/_makenames.c
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)
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target_include_directories(libcap_makenames PUBLIC
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${SAPI_LIBCAP_SOURCE_DIR}/libcap
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/include
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/include/uapi
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)
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add_custom_command(OUTPUT ${SAPI_LIBCAP_SOURCE_DIR}/libcap/cap_names.h
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COMMAND libcap_makenames > ${SAPI_LIBCAP_SOURCE_DIR}/libcap/cap_names.h
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)
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endif()
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add_library(cap STATIC
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/cap_alloc.c
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/cap_extint.c
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/cap_file.c
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/cap_flag.c
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/cap_names.h
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/cap_proc.c
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/cap_text.c
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/include/uapi/linux/capability.h
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/libcap.h
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)
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add_library(libcap::libcap ALIAS cap)
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target_include_directories(cap PUBLIC
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${SAPI_LIBCAP_SOURCE_DIR}/libcap
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/include
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${SAPI_LIBCAP_SOURCE_DIR}/libcap/include/uapi
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)
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target_compile_options(cap PRIVATE
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-Wno-tautological-compare
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-Wno-unused-result
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)
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target_compile_definitions(cap PRIVATE
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# Work around sys/xattr.h not declaring this
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-DXATTR_NAME_CAPS="\"security.capability\""
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)
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target_link_libraries(cap PRIVATE
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sapi::base
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)
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