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Added logic to check availabily of __sync_fetch_and_add during build

This commit is contained in:
Pavel Odintsov 2022-05-04 12:52:58 +01:00
parent 7395463856
commit 89e8923759
1 changed files with 26 additions and 0 deletions
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26
src/CMakeLists.txt
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@ -163,12 +163,38 @@ else()
check_library_exists(atomic __atomic_add_fetch_8 "" HAVE_LIBATOMIC)
if (HAVE_LIBATOMIC)
message(STATUS "Linked with atomic library")
target_link_libraries(fastnetmon atomic)
else()
message(STATUS "We have no support for __atomic_add_fetch in atomic library, skip linking")
endif()
endif()
CHECK_CXX_SOURCE_COMPILES("
#include <cstdint>
int main() {
uint64_t x = 1;
__sync_fetch_and_add(&x, 1);
return x;
}
" HAVE__SYNC_FETCH_AND_ADD)
if (HAVE__SYNC_FETCH_AND_ADD)
message(STATUS "We have __sync_fetch_and_add on this platform")
else()
# We know that it happens for mipsel platform due to https://reviews.llvm.org/D45691
message(STATUS "We have no __sync_fetch_and_add on this platform, will try linking with libatomic")
check_library_exists(atomic __sync_fetch_and_add_8 "" HAVE_LIBATOMIC_SYNC_FETCH_AND_ADD)
if (HAVE_LIBATOMIC_SYNC_FETCH_AND_ADD)
message(STATUS "Linked with atomic library")
target_link_libraries(fastnetmon atomic)
else()
message(STATUS "We have no support for __sync_fetch_and_add in atomic library, skip linking")
endif()
endif()
option(ENABLE_NETMAP_SUPPORT "Enable Netmap support" OFF)
CHECK_CXX_SOURCE_COMPILES("