xref: /oneTBB/cmake/compilers/GNU.cmake (revision 68e075cb)
1# Copyright (c) 2020-2021 Intel Corporation
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#     http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14
15if (APPLE)
16    set(TBB_LINK_DEF_FILE_FLAG -Wl,-exported_symbols_list,)
17    set(TBB_DEF_FILE_PREFIX mac${TBB_ARCH})
18
19    # For correct ucontext.h structures layout
20    set(TBB_COMMON_COMPILE_FLAGS ${TBB_COMMON_COMPILE_FLAGS} -D_XOPEN_SOURCE)
21else()
22    set(TBB_LINK_DEF_FILE_FLAG -Wl,--version-script=)
23    set(TBB_DEF_FILE_PREFIX lin${TBB_ARCH})
24endif()
25
26set(TBB_WARNING_LEVEL -Wall -Wextra $<$<BOOL:${TBB_STRICT}>:-Werror> -Wfatal-errors)
27set(TBB_TEST_WARNING_FLAGS -Wshadow -Wcast-qual -Woverloaded-virtual -Wnon-virtual-dtor)
28
29# Depfile options (e.g. -MD) are inserted automatically in some cases.
30# Don't add -MMD to avoid conflicts in such cases.
31if (NOT CMAKE_GENERATOR MATCHES "Ninja" AND NOT CMAKE_CXX_DEPENDS_USE_COMPILER)
32    set(TBB_MMD_FLAG -MMD)
33endif()
34
35# Enable Intel(R) Transactional Synchronization Extensions (-mrtm) and WAITPKG instructions support (-mwaitpkg) on relevant processors
36if (CMAKE_SYSTEM_PROCESSOR MATCHES "(x86|AMD64)")
37    set(TBB_COMMON_COMPILE_FLAGS ${TBB_COMMON_COMPILE_FLAGS} -mrtm $<$<AND:$<NOT:$<CXX_COMPILER_ID:Intel>>,$<NOT:$<VERSION_LESS:${CMAKE_CXX_COMPILER_VERSION},11.0>>>:-mwaitpkg>)
38endif()
39
40set(TBB_COMMON_LINK_LIBS dl)
41
42# Ignore -Werror set through add_compile_options() or added to CMAKE_CXX_FLAGS if TBB_STRICT is disabled.
43if (NOT TBB_STRICT AND COMMAND tbb_remove_compile_flag)
44    tbb_remove_compile_flag(-Werror)
45endif()
46
47if (NOT ${CMAKE_CXX_COMPILER_ID} STREQUAL Intel)
48    # gcc 6.0 and later have -flifetime-dse option that controls elimination of stores done outside the object lifetime
49    set(TBB_DSE_FLAG $<$<NOT:$<VERSION_LESS:${CMAKE_CXX_COMPILER_VERSION},6.0>>:-flifetime-dse=1>)
50endif()
51
52# Workaround for heavy tests and too many symbols in debug (rellocation truncated to fit: R_MIPS_CALL16)
53if ("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "mips")
54    set(TBB_TEST_COMPILE_FLAGS ${TBB_TEST_COMPILE_FLAGS} -DTBB_TEST_LOW_WORKLOAD $<$<CONFIG:DEBUG>:-mxgot>)
55endif()
56
57# For some reason GCC does not instrument code with Thread Sanitizer when lto is enabled and C linker is used.
58if (NOT TBB_SANITIZE MATCHES "thread")
59    set(TBB_IPO_COMPILE_FLAGS $<$<NOT:$<CONFIG:Debug>>:-flto>)
60    set(TBB_IPO_LINK_FLAGS $<$<NOT:$<CONFIG:Debug>>:-flto>)
61endif()
62
63# TBB malloc settings
64set(TBBMALLOC_LIB_COMPILE_FLAGS -fno-rtti -fno-exceptions)
65set(TBB_OPENMP_FLAG -fopenmp)
66