diff options
Diffstat (limited to 'meta-openembedded/meta-oe/recipes-dbs/rocksdb/files/0001-cmake-Add-check-for-atomic-support.patch')
-rw-r--r-- | meta-openembedded/meta-oe/recipes-dbs/rocksdb/files/0001-cmake-Add-check-for-atomic-support.patch | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/meta-openembedded/meta-oe/recipes-dbs/rocksdb/files/0001-cmake-Add-check-for-atomic-support.patch b/meta-openembedded/meta-oe/recipes-dbs/rocksdb/files/0001-cmake-Add-check-for-atomic-support.patch new file mode 100644 index 0000000000..9bfb1f31d9 --- /dev/null +++ b/meta-openembedded/meta-oe/recipes-dbs/rocksdb/files/0001-cmake-Add-check-for-atomic-support.patch @@ -0,0 +1,115 @@ +From ba0a0e54d9544babbd3963891f4e3200dd5583f5 Mon Sep 17 00:00:00 2001 +From: Khem Raj <raj.khem@gmail.com> +Date: Wed, 18 Mar 2020 15:10:37 -0700 +Subject: [PATCH] cmake: Add check for atomic support + +Detect if libatomic should be linked in or compiler and platform can +provide the needed atomic instrinsics, this helps build on certain +platforms like mips or clang/i386 + +Fixes + +| /mnt/b/yoe/build/tmp/work/mips32r2-yoe-linux/rocksdb/6.6.4-r0/recipe-sysroot-native/usr/bin/mips-yoe-linux/mips-yoe-linux-ld: librocksdb.so.6.6.4: undefined reference to `__atomic_exchange_8' +| /mnt/b/yoe/build/tmp/work/mips32r2-yoe-linux/rocksdb/6.6.4-r0/recipe-sysroot-native/usr/bin/mips-yoe-linux/mips-yoe-linux-ld: librocksdb.so.6.6.4: undefined reference to `__atomic_fetch_or_8' +| /mnt/b/yoe/build/tmp/work/mips32r2-yoe-linux/rocksdb/6.6.4-r0/recipe-sysroot-native/usr/bin/mips-yoe-linux/mips-yoe-linux-ld: librocksdb.so.6.6.4: undefined reference to `__atomic_compare_exchange_8' +| /mnt/b/yoe/build/tmp/work/mips32r2-yoe-linux/rocksdb/6.6.4-r0/recipe-sysroot-native/usr/bin/mips-yoe-linux/mips-yoe-linux-ld: librocksdb.so.6.6.4: undefined reference to `__atomic_fetch_sub_8' +| /mnt/b/yoe/build/tmp/work/mips32r2-yoe-linux/rocksdb/6.6.4-r0/recipe-sysroot-native/usr/bin/mips-yoe-linux/mips-yoe-linux-ld: librocksdb.so.6.6.4: undefined reference to `__atomic_load_8' +| /mnt/b/yoe/build/tmp/work/mips32r2-yoe-linux/rocksdb/6.6.4-r0/recipe-sysroot-native/usr/bin/mips-yoe-linux/mips-yoe-linux-ld: librocksdb.so.6.6.4: undefined reference to `__atomic_store_8' +| /mnt/b/yoe/build/tmp/work/mips32r2-yoe-linux/rocksdb/6.6.4-r0/recipe-sysroot-native/usr/bin/mips-yoe-linux/mips-yoe-linux-ld: librocksdb.so.6.6.4: undefined reference to `__atomic_fetch_add_8' + +Upstream-Status: Submitted [https://github.com/facebook/rocksdb/pull/6555] +Signed-off-by: Khem Raj <raj.khem@gmail.com> +--- + CMakeLists.txt | 6 +++ + cmake/modules/CheckAtomic.cmake | 69 +++++++++++++++++++++++++++++++++ + 2 files changed, 75 insertions(+) + create mode 100644 cmake/modules/CheckAtomic.cmake + +--- a/CMakeLists.txt ++++ b/CMakeLists.txt +@@ -780,7 +780,13 @@ if(WIN32) + set(SYSTEM_LIBS ${SYSTEM_LIBS} shlwapi.lib rpcrt4.lib) + set(LIBS ${ROCKSDB_STATIC_LIB} ${THIRDPARTY_LIBS} ${SYSTEM_LIBS}) + else() ++ # check if linking against libatomic is necessary ++ include(CheckAtomic) ++ + set(SYSTEM_LIBS ${CMAKE_THREAD_LIBS_INIT}) ++ if(HAVE_CXX_ATOMIC_WITH_LIB OR HAVE_CXX_ATOMICS64_WITH_LIB) ++ set(SYSTEM_LIBS ${SYSTEM_LIBS} atomic) ++ endif() + set(LIBS ${ROCKSDB_SHARED_LIB} ${THIRDPARTY_LIBS} ${SYSTEM_LIBS}) + + add_library(${ROCKSDB_SHARED_LIB} SHARED ${SOURCES}) +--- /dev/null ++++ b/cmake/modules/CheckAtomic.cmake +@@ -0,0 +1,69 @@ ++# Checks if atomic operations are supported natively or if linking against ++# libatomic is needed. ++ ++# Check inspired by LLVMs cmake/modules/CheckAtomic.cmake ++ ++INCLUDE(CheckCXXSourceCompiles) ++INCLUDE(CheckLibraryExists) ++ ++function(check_working_cxx_atomics varname) ++ set(OLD_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS}) ++ set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -std=c++11") ++ CHECK_CXX_SOURCE_COMPILES(" ++#include <atomic> ++std::atomic<int> x; ++int main() { ++ return x; ++} ++" ${varname}) ++ set(CMAKE_REQUIRED_FLAGS ${OLD_CMAKE_REQUIRED_FLAGS}) ++endfunction(check_working_cxx_atomics) ++ ++function(check_working_cxx_atomics64 varname) ++ set(OLD_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS}) ++ set(CMAKE_REQUIRED_FLAGS "-std=c++11 ${CMAKE_REQUIRED_FLAGS}") ++ CHECK_CXX_SOURCE_COMPILES(" ++#include <atomic> ++#include <cstdint> ++std::atomic<uint64_t> x (0); ++std::atomic<double> y (0); ++int main() { ++ uint64_t i = x.load(std::memory_order_relaxed); ++ return int(y); ++} ++" ${varname}) ++ set(CMAKE_REQUIRED_FLAGS ${OLD_CMAKE_REQUIRED_FLAGS}) ++endfunction(check_working_cxx_atomics64) ++ ++# Check if atomics work without libatomic ++check_working_cxx_atomics(HAVE_CXX_ATOMICS_WITHOUT_LIB) ++ ++if(NOT HAVE_CXX_ATOMICS_WITHOUT_LIB) ++ check_library_exists(atomic __atomic_fetch_add_4 "" HAVE_LIBATOMIC) ++ if( HAVE_LIBATOMIC ) ++ list(APPEND CMAKE_REQUIRED_LIBRARIES "atomic") ++ check_working_cxx_atomics(HAVE_CXX_ATOMICS_WITH_LIB) ++ if (NOT HAVE_CXX_ATOMICS_WITH_LIB) ++ message(FATAL_ERROR "Host compiler must support std::atomic!") ++ endif() ++ else() ++ message(FATAL_ERROR "Host compiler appears to require libatomic, but cannot find it.") ++ endif() ++endif() ++ ++# Check if 64bit atomics work without libatomic ++check_working_cxx_atomics64(HAVE_CXX_ATOMICS64_WITHOUT_LIB) ++ ++if(NOT HAVE_CXX_ATOMICS64_WITHOUT_LIB) ++ check_library_exists(atomic __atomic_load_8 "" HAVE_CXX_LIBATOMICS64) ++ if(HAVE_CXX_LIBATOMICS64) ++ list(APPEND CMAKE_REQUIRED_LIBRARIES "atomic") ++ check_working_cxx_atomics64(HAVE_CXX_ATOMICS64_WITH_LIB) ++ if (NOT HAVE_CXX_ATOMICS64_WITH_LIB) ++ message(FATAL_ERROR "Host compiler must support std::atomic!") ++ endif() ++ else() ++ message(FATAL_ERROR "Host compiler appears to require libatomic, but cannot find it.") ++ endif() ++endif() ++ |