sandboxed-api/cmake/SapiUtil.cmake
Christian Blichmann 6bfa83befe CMake support for Sandbox2
- Add a superbuild in cmake/SuperBuild.cmake that downloads and builds
  dependencies
- Builds for sandbox2/ and a its tests
- Helper CMake function to strip proto paths
- Module to find libcap
- Custom build for libunwind that wraps its symbols
- Fix environment so that CTest executes tests similar to Bazel
- Filewrapper functionality, like Bazel's cc_embed_data()
- Build forkserver with embedded binary
- Enable ASM language so that libunwind builds correctly
- Allow glog target to propagate transitively (to propagate its include dirs)

Signed-off-by: Christian Blichmann <cblichmann@google.com>
2019-05-06 14:03:29 +02:00

90 lines
3.5 KiB
CMake

# Copyright 2019 Google LLC. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Creates an alias for SOURCE, called DESTINATION.
#
# On platforms that support them, this rule will effectively create a symlink.
#
# SOURCE may be relative to CMAKE_CURRENT_SOURCE_DIR, or absolute.
# DESTINATION may relative to CMAKE_CURRENT_BINARY_DIR, or absolute.
#
# Adapted from https://github.com/google/binexport/blob/master/util.cmake
function(create_directory_symlink SOURCE DESTINATION)
get_filename_component(_destination_parent "${DESTINATION}" DIRECTORY)
file(MAKE_DIRECTORY "${_destination_parent}")
if (WIN32)
file(TO_NATIVE_PATH "${SOURCE}" _native_source)
file(TO_NATIVE_PATH "${DESTINATION}" _native_destination)
execute_process(COMMAND $ENV{ComSpec} /c
mklink /J "${_native_destination}" "${_native_source}" ERROR_QUIET)
else()
execute_process(COMMAND ${CMAKE_COMMAND} -E
create_symlink "${SOURCE}" "${DESTINATION}")
endif()
endfunction()
# Helper function that behaves just like protobuf_generate_cpp(), except that
# it strips import paths. This is necessary, because CMake's protobuf rules
# don't work well with imports across different directories.
function(sapi_protobuf_generate_cpp SRCS HDRS PROTO)
file(READ ${PROTO} _pb_orig)
string(REGEX REPLACE "import \".*/([^/]+\\.proto)\""
"import \"\\1\"" _pb_repl "${_pb_orig}")
file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/${PROTO} "${_pb_repl}")
protobuf_generate_cpp(_srcs _hdrs ${CMAKE_CURRENT_BINARY_DIR}/${PROTO})
set(${SRCS} ${_srcs} PARENT_SCOPE)
set(${HDRS} ${_hdrs} PARENT_SCOPE)
endfunction()
# Embeds arbitrary binary data into a static library.
#
# NAME specifies the name for this target.
# NAMESPACE is the C++ namespace the generated code is placed in. Can be empty.
# SOURCES is a list of files that should be embedded. If a source names a
# target the target binary is embedded instead.
macro(sapi_cc_embed_data)
cmake_parse_arguments(_sapi_embed "" "NAME;NAMESPACE" "SOURCES" ${ARGN})
foreach(src ${_sapi_embed_SOURCES})
if(TARGET ${src})
list(APPEND _sapi_embed_in ${CMAKE_CURRENT_BINARY_DIR}/${src})
else()
list(APPEND _sapi_embed_in ${src})
endif()
endforeach()
file(RELATIVE_PATH _sapi_embed_pkg
${PROJECT_BINARY_DIR}
${CMAKE_CURRENT_BINARY_DIR})
add_custom_command(
OUTPUT ${_sapi_embed_NAME}.h ${_sapi_embed_NAME}.cc
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMAND filewrapper ${_sapi_embed_pkg}
${_sapi_embed_NAME}
"${_sapi_embed_NAMESPACE}"
${CMAKE_CURRENT_BINARY_DIR}/${_sapi_embed_NAME}.h
${CMAKE_CURRENT_BINARY_DIR}/${_sapi_embed_NAME}.cc
${_sapi_embed_in}
DEPENDS ${_sapi_embed_SOURCES}
VERBATIM
)
add_library(${_sapi_embed_NAME} STATIC
${_sapi_embed_NAME}.h
${_sapi_embed_NAME}.cc
)
target_link_libraries(${_sapi_embed_NAME} PRIVATE
sapi::base
absl::core_headers
)
endmacro()