osquery-1/osquery/filesystem/CMakeLists.txt
Alessandro Gario 6481b34e23
Refactor third-party libraries to build from source on Linux (#5706)
Add a way to compile third-party libraries from source instead of downloading prebuilt ones.
Each library source code is downloaded with git into a submodule at configure time,
in response to the find_package(library_name) CMake call,
except for OpenSSL where the official source archive is used.
Each submodule is attached to a release tag on its own upstream repository.
All the libraries are built using CMake directly, except for OpenSSL which uses a formula system,
which permits to build libraries with a separate build system
when there's no easy way to integrate it directly with CMake.

This new dependency system determines which library is fetched from where using the concept of "layers".
Currently we have three of them: source, formula, facebook,
where the last layer represents the pre-built libraries.
The provided order will be used when looking for libraries.

A system to patch submodule source code has been added and it's currently used with googletest, libudev and util-linux.
Patches should be put under libraries/cmake/source/<library name>/patches/<submodule>,
where <submodule> is often one and is "src", but in other cases, like AWS,
there are multiple with a more specific name.
If for whatever reason the submodule cloning or the patching fails,
the submodule has to be unregistered and its folder should be cleared.
This should be achievable with "git submodule deinit -f <submodule path>"

Following some other changes on existing functionality:

- Changed the CMake variable BUILD_TESTING to OSQUERY_BUILD_TESTS
  to avoid enabling tests on third party libraries.
  Due to an issue with glog the BUILD_TESTING variable
  will be always forced to OFF.
- Moved compiler and linker flags to their own file cmake/flags.cmake
- Moved all the third-party CMakeLists.txt used for pre-built libraries under libraries/cmake/facebook
- Added the --exclude-folders option to tools/format-check.py and tools/git-clang-format.py,
  so that it's possible to ignore any third party library source code.
- The format and format_check target use the new --exclude-folders option
  to exclude libraries/cmake/source from formatting.
- The test and osquery binaries are properly compiled with PIE (osquery/osquery#5611)

Co-authored-by: Stefano Bonicatti <stefano.bonicatti@gmail.com>
Co-authored-by: Teddy Reed <teddy@casualhacking.io>
2019-08-30 16:25:19 +02:00

132 lines
3.0 KiB
CMake

# Copyright (c) 2014-present, Facebook, Inc.
# All rights reserved.
#
# This source code is licensed in accordance with the terms specified in
# the LICENSE file found in the root directory of this source tree.
function(osqueryFilesystemMain)
if(OSQUERY_BUILD_TESTS)
generateOsqueryFilesystemTest()
endif()
generateOsqueryFilesystem()
generateOsqueryFilesystemMockfilestructure()
endfunction()
function(generateOsqueryFilesystem)
set(source_files
file_compression.cpp
filesystem.cpp
)
if(DEFINED PLATFORM_POSIX)
list(APPEND source_files
posix/fileops.cpp
)
endif()
if(DEFINED PLATFORM_LINUX)
list(APPEND source_files
linux/mem.cpp
linux/proc.cpp
)
elseif(DEFINED PLATFORM_WINDOWS)
list(APPEND source_files
windows/fileops.cpp
)
endif()
add_osquery_library(osquery_filesystem EXCLUDE_FROM_ALL
${source_files}
)
target_link_libraries(osquery_filesystem PUBLIC
osquery_cxx_settings
osquery_headers
osquery_process
osquery_utils_conversions
osquery_utils_status
osquery_utils_system_env
thirdparty_boost
thirdparty_libarchive
thirdparty_zstd
)
set(public_header_files
fileops.h
filesystem.h
)
if(DEFINED PLATFORM_LINUX)
list(APPEND public_header_files
linux/proc.h
)
endif()
generateIncludeNamespace(osquery_filesystem "osquery/filesystem" "FULL_PATH" ${public_header_files})
add_test(NAME osquery_filesystem_filesystemtests-test COMMAND osquery_filesystem_filesystemtests-test)
set_tests_properties(
osquery_filesystem_filesystemtests-test
PROPERTIES ENVIRONMENT "TEST_CONF_FILES_DIR=${TEST_CONFIGS_DIR}"
)
endfunction()
function(generateOsqueryFilesystemMockfilestructure)
add_osquery_library(osquery_filesystem_mockfilestructure EXCLUDE_FROM_ALL
mock_file_structure.cpp
)
target_link_libraries(osquery_filesystem_mockfilestructure PUBLIC
osquery_cxx_settings
thirdparty_boost
osquery_filesystem
)
set(public_header_files
mock_file_structure.h
)
generateIncludeNamespace(osquery_filesystem_mockfilestructure "osquery/filesystem" "FILE_ONLY" ${public_header_files})
endfunction()
function(generateOsqueryFilesystemTest)
set(source_files
tests/fileops.cpp
tests/filesystem.cpp
)
if(DEFINED PLATFORM_MACOS)
list(APPEND source_files tests/darwin/plist_tests.cpp)
endif()
add_osquery_executable(osquery_filesystem_filesystemtests-test ${source_files})
target_link_libraries(osquery_filesystem_filesystemtests-test PRIVATE
osquery_cxx_settings
osquery_config_tests_testutils
osquery_core
osquery_core_sql
osquery_dispatcher
osquery_distributed
osquery_events
osquery_extensions
osquery_extensions_implthrift
osquery_process
osquery_registry
osquery_remote_enroll_tlsenroll
plugins_config_tlsconfig
specs_tables
osquery_filesystem_mockfilestructure
osquery_filesystem
osquery_tools_tests_plistfiles
thirdparty_googletest
)
endfunction()
osqueryFilesystemMain()