!1800 优化编译选项，提高数据库性能

Merge pull request !1800 from cc_db_dev/complie_op

configure

@@ -29836,7 +29836,7 @@ platform_version=`sh ./src/get_PlatForm_str.sh`
 is_euler=`echo $platform_version | grep euleros`
 # New gcc version should be compatible to old one
 if test "$CC_VERSION" = "$NEW_GCC"; then
-  CFLAGS=" -std=c++11 -D_GLIBCXX_USE_CXX11_ABI=0 $CFLAGS -fno-aggressive-loop-optimizations -Wno-attributes -fno-omit-frame-pointer -fno-expensive-optimizations"
+  CFLAGS=" -D_GLIBCXX_USE_CXX11_ABI=0 $CFLAGS -Wno-attributes "
   CFLAGS="$CFLAGS -Wno-unused-but-set-variable"
   if test "$is_euler" != ""; then
     if test "${enable_cassert}" = no -o "${enable_memory_check}" = no -a "${enable_ut}" = no; then

src/Makefile.global.in

@@ -823,15 +823,13 @@ CXXFLAGS = @CFLAGS@
 ifeq ($(enable_memory_check), yes)
   CXXFLAGS += -fsanitize=address -fsanitize=leak -fno-omit-frame-pointer
 else
-  CXXFLAGS += -fstack-protector
+  #CXXFLAGS += -fstack-protector
 endif
 
 ifeq ($(enable_thread_check), yes)
   CXXFLAGS += -fsanitize=thread -fno-omit-frame-pointer
 endif
 
-CXXFLAGS += -Wl,-z,relro,-z,now
-CXXFLAGS += -Wl,-z,noexecstack
 CXXFLAGS += -std=c++14
 override CXXFLAGS += $(PTHREAD_CFLAGS)
 # Kind-of compilers