meta-openembedded/meta-oe/recipes-dbs/mysql/mariadb/0001-MDEV-23137-RocksDB-undefined-reference-to-crc32c_arm.patch

From d88ea260882ca414e940cd6af225617f00503f71 Mon Sep 17 00:00:00 2001
From: Krunal Bauskar <krunalbauskar@gmail.com>
Date: Mon, 27 Jul 2020 18:38:10 +0800
Subject: [PATCH] MDEV-23137: RocksDB: undefined reference to crc32c_arm64

RocksDB fails to build on arm64: undefined reference to
            `crc32c_arm64(unsigned int, unsigned char const*, unsigned int)'

MariaDB uses storage/rocksdb/build_rocksdb.cmake to compile RocksDB.
Said cmake missed adding crc32c_arm64 compilation target so if
machine native architecture supported crc32 then complier would enable
usage of function defined in crc32c_arm64 causing the listed error.

Added crc32c_arm64 complition target.

closes #1642

Upstream-Status: Backport

Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
---
 storage/rocksdb/build_rocksdb.cmake | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/storage/rocksdb/build_rocksdb.cmake b/storage/rocksdb/build_rocksdb.cmake
index 3f3dca7e990..7d2252c5f77 100644
--- a/storage/rocksdb/build_rocksdb.cmake
+++ b/storage/rocksdb/build_rocksdb.cmake
@@ -442,6 +442,16 @@ else()
       util/crc32c_ppc.c
       util/crc32c_ppc_asm.S)
   endif(CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64")
+  # aarch
+  if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")
+    CHECK_CXX_COMPILER_FLAG("-march=armv8-a+crc+crypto" HAS_ARMV8_CRC)
+    if(HAS_ARMV8_CRC)
+      message(STATUS " HAS_ARMV8_CRC yes")
+      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=armv8-a+crc+crypto -Wno-unused-function")
+      list(APPEND ROCKSDB_SOURCES
+        util/crc32c_arm64.cc)
+    endif(HAS_ARMV8_CRC)
+  endif(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")
 endif()
 SET(SOURCES)
 FOREACH(s ${ROCKSDB_SOURCES})
-- 
2.17.1