diff options
Diffstat (limited to 'dev-libs/rocksdb/files/rocksdb-6.14.6-libatomic.patch')
-rw-r--r-- | dev-libs/rocksdb/files/rocksdb-6.14.6-libatomic.patch | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/dev-libs/rocksdb/files/rocksdb-6.14.6-libatomic.patch b/dev-libs/rocksdb/files/rocksdb-6.14.6-libatomic.patch new file mode 100644 index 000000000000..27f17aab8933 --- /dev/null +++ b/dev-libs/rocksdb/files/rocksdb-6.14.6-libatomic.patch @@ -0,0 +1,105 @@ +From 38d79de10da65d234c70cbb36c24c58d189f76db Mon Sep 17 00:00:00 2001 +From: mrambacher <mrambach@gmail.com> +Date: Mon, 12 Apr 2021 20:06:57 -0400 +Subject: [PATCH 1/3] Add check to cmake to see if we need to link against + -latomic + +For some compilers/environments (e.g. Clang, riscv64), we need to link against -latomic. Check if this is a requirement and add the library to the third-party libs if it is. +--- + CMakeLists.txt | 21 ++++++++++++++++++++- + 1 file changed, 20 insertions(+), 1 deletion(-) + +diff --git a/CMakeLists.txt b/CMakeLists.txt +index 984c6197cb..460d350054 100644 +--- a/CMakeLists.txt ++++ b/CMakeLists.txt +@@ -312,7 +312,6 @@ int main() { + auto d = _mm_cvtsi128_si64(c); + } + " HAVE_SSE42) +-unset(CMAKE_REQUIRED_FLAGS) + if(HAVE_SSE42) + add_definitions(-DHAVE_SSE42) + add_definitions(-DHAVE_PCLMUL) +@@ -320,6 +319,26 @@ elseif(FORCE_SSE42) + message(FATAL_ERROR "FORCE_SSE42=ON but unable to compile with SSE4.2 enabled") + endif() + ++# Check if -latomic is required or not ++if (NOT MSVC) ++ set(CMAKE_REQUIRED_FLAGS "--std=c++11") ++ CHECK_CXX_SOURCE_COMPILES(" ++#include <atomic> ++std::atomic<uint64_t> x(0); ++int main() { ++ uint64_t i = x.load(std::memory_order_relaxed); ++ bool b = x.is_lock_free(); ++ return 0; ++} ++" BUILTIN_ATOMIC) ++if (NOT BUILTIN_ATOMIC) ++ #TODO: Check if -latomic exists ++ list(APPEND THIRDPARTY_LIBS atomic) ++endif() ++endif() ++ ++unset(CMAKE_REQUIRED_FLAGS) ++ + CHECK_CXX_SOURCE_COMPILES(" + #if defined(_MSC_VER) && !defined(__thread) + #define __thread __declspec(thread) + +From df7fdd69ac19f26601a80e35f70ec51913838a6e Mon Sep 17 00:00:00 2001 +From: mrambacher <mrambach@gmail.com> +Date: Wed, 14 Apr 2021 10:33:47 -0400 +Subject: [PATCH 2/3] Reset CMAKE_REQUIRED_FLAGS after compilation checks + +--- + CMakeLists.txt | 4 +++- + 1 file changed, 3 insertions(+), 1 deletion(-) + +diff --git a/CMakeLists.txt b/CMakeLists.txt +index 460d350054..5d167855a7 100644 +--- a/CMakeLists.txt ++++ b/CMakeLists.txt +@@ -296,6 +296,7 @@ else() + endif() + + include(CheckCXXSourceCompiles) ++set(OLD_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS}) + if(NOT MSVC) + set(CMAKE_REQUIRED_FLAGS "-msse4.2 -mpclmul") + endif() +@@ -337,7 +338,8 @@ if (NOT BUILTIN_ATOMIC) + endif() + endif() + +-unset(CMAKE_REQUIRED_FLAGS) ++# Reset the required flags ++set(CMAKE_REQUIRED_FLAGS ${OLD_CMAKE_REQUIRED_FLAGS}) + + CHECK_CXX_SOURCE_COMPILES(" + #if defined(_MSC_VER) && !defined(__thread) + +From 4793c5c75351d5d7c609c27d0243c2138729c7b0 Mon Sep 17 00:00:00 2001 +From: mrambacher <mrambach@gmail.com> +Date: Fri, 16 Apr 2021 08:53:48 -0400 +Subject: [PATCH 3/3] Fix lint warning + +--- + CMakeLists.txt | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/CMakeLists.txt b/CMakeLists.txt +index 5d167855a7..558b985073 100644 +--- a/CMakeLists.txt ++++ b/CMakeLists.txt +@@ -333,7 +333,7 @@ int main() { + } + " BUILTIN_ATOMIC) + if (NOT BUILTIN_ATOMIC) +- #TODO: Check if -latomic exists ++ #TODO: Check if -latomic exists + list(APPEND THIRDPARTY_LIBS atomic) + endif() + endif() |