CMake targets for SAPI, add find_package() support for libffi

This change adds CMake targets for the actual Sandboxed API library. On its
own, this is not very useful, as there is no CMake equivalent to the
sapi_library() rule, yet. This will be worked on next.

PiperOrigin-RevId: 257177362
Change-Id: Ic06c945ab534b27306021d970a83691aae2e7e60

CMakeLists.txt

@@ -71,9 +71,10 @@ endif()
 
 find_package(gflags REQUIRED)
 find_package(glog REQUIRED)
-find_package(Protobuf REQUIRED)
 find_package(Libcap REQUIRED)
+find_package(Libffi REQUIRED)
 find_package(ZLIB REQUIRED)
+find_package(Protobuf REQUIRED)
 
 set(CMAKE_FIND_LIBRARY_SUFFIXES ${_sapi_saved_CMAKE_FIND_LIBRARY_SUFFIXES})
 

sandboxed_api/CMakeLists.txt

@@ -16,6 +16,20 @@ add_subdirectory(bazel)  # For filewrapper
 add_subdirectory(sandbox2)
 add_subdirectory(util)
 
+# sandboxed_api:proto_arg
+sapi_protobuf_generate_cpp(_sapi_proto_arg_pb_cc _sapi_proto_arg_pb_h
+  proto_arg.proto
+)
+add_library(sapi_proto_arg_proto STATIC
+  ${_sapi_proto_arg_pb_cc}
+  ${_sapi_proto_arg_pb_h}
+)
+add_library(sapi::proto_arg_proto ALIAS sapi_proto_arg_proto)
+target_link_libraries(sapi_proto_arg_proto PRIVATE
+  protobuf::libprotobuf
+  sapi::base
+)
+
 # sandboxed_api:embed_file
 add_library(sapi_embed_file STATIC
   embed_file.cc
@@ -35,3 +49,122 @@ target_link_libraries(sapi_embed_file PRIVATE
   sapi::raw_logging
   sapi::status
 )
+
+# sandboxed_api:sapi
+add_library(sapi_sapi STATIC
+  sandbox.cc
+  sandbox.h
+  transaction.cc
+  transaction.h
+)
+add_library(sapi::sapi ALIAS sapi_sapi)
+target_link_libraries(sapi_sapi PRIVATE
+  absl::core_headers
+  absl::flat_hash_map
+  absl::memory
+  absl::str_format
+  absl::strings
+  absl::synchronization
+  sandbox2::bpf_helper
+  sandbox2::client
+  sandbox2::file_base
+  sandbox2::fileops
+  sandbox2::runfiles
+  sandbox2::sandbox2
+  sandbox2::strerror
+  sandbox2::util
+  sapi::base
+  sapi::embed_file
+  sapi::status
+  sapi::vars
+)
+
+# sandboxed_api:call
+add_library(sapi_call STATIC
+  call.h
+)
+add_library(sapi::call ALIAS sapi_call)
+target_link_libraries(sapi_call PRIVATE
+  absl::core_headers
+  sapi::var_type
+  sapi::base
+)
+
+# sandboxed_api:lenval_core
+add_library(sapi_lenval_core STATIC
+  lenval_core.h
+)
+add_library(sapi::lenval_core ALIAS sapi_lenval_core)
+target_link_libraries(sapi_lenval_core PRIVATE
+  sapi::base
+)
+
+# sandboxed_api:var_type
+add_library(sapi_var_type STATIC
+  var_type.h
+)
+add_library(sapi::var_type ALIAS sapi_var_type)
+target_link_libraries(sapi_var_type PRIVATE
+  sapi::base
+)
+
+# sandboxed_api:vars
+add_library(sapi_vars STATIC
+  proto_helper.h
+  rpcchannel.cc
+  rpcchannel.h
+  var_abstract.cc
+  var_abstract.h
+  var_array.h
+  var_int.cc
+  var_int.h
+  var_lenval.cc
+  var_lenval.h
+  var_pointable.cc
+  var_pointable.h
+  var_proto.h
+  var_ptr.h
+  var_reg.h
+  var_struct.h
+  var_void.h
+  vars.h
+)
+add_library(sapi::vars ALIAS sapi_vars)
+target_link_libraries(sapi_vars PRIVATE
+  absl::core_headers
+  absl::str_format
+  absl::strings
+  absl::synchronization
+  glog::glog
+  sandbox2::comms
+  sapi::base
+  sapi::call
+  sapi::lenval_core
+  sapi::proto_arg_proto
+  sapi::status
+  sapi::statusor
+  sapi::var_type
+)
+
+# sandboxed_api:client
+add_library(sapi_client STATIC
+  client.cc
+)
+add_library(sapi::client ALIAS sapi_client)
+target_link_libraries(sapi_client PRIVATE
+  absl::core_headers
+  absl::strings
+  glog::glog
+  libffi::libffi
+  sandbox2::client
+  sandbox2::comms
+  sandbox2::forkingclient
+  sapi::base
+  sapi::call
+  sapi::flags
+  sapi::lenval_core
+  sapi::vars
+)
+
+# sandboxed_api:sapi_test
+# TODO(cblichmann): Add sapi_test once generator can be invoked via CMake