| # Copyright 2022 DeepMind Technologies Limited | |
| # | |
| # 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 | |
| # | |
| # https://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. | |
| option(MUJOCO_HARDEN "Enable build hardening for MuJoCo." OFF) | |
| if(MUJOCO_HARDEN | |
| AND NOT | |
| CMAKE_CXX_COMPILER_ID | |
| MATCHES | |
| ".*Clang.*" | |
| ) | |
| message(FATAL_ERROR "MUJOCO_HARDEN is only supported when building with Clang") | |
| endif() | |
| if(MUJOCO_HARDEN) | |
| set(MUJOCO_HARDEN_COMPILE_OPTIONS -D_FORTIFY_SOURCE=2 -fstack-protector) | |
| if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin") | |
| set(MUJOCO_HARDEN_LINK_OPTIONS -Wl,-bind_at_load) | |
| elseif(${CMAKE_SYSTEM_NAME} MATCHES "Linux") | |
| set(MUJOCO_HARDEN_LINK_OPTIONS -Wl,-z,relro -Wl,-z,now) | |
| endif() | |
| else() | |
| set(MUJOCO_HARDEN_COMPILE_OPTIONS "") | |
| set(MUJOCO_HARDEN_LINK_OPTIONS "") | |
| endif() | |