cmake: add ndctl and daxctl to build pmem

In order to enable the pmem character device, add ndct=y to the parameter
of compiling the pmem library when WITH_BLUESTORE_PMEM is ON. Because
after find_ndctl and find_daxctl are added, the dependency packages
required by WITH_BLUESTORE_PMEM and WITH_RBD_RWL become more different.
So separated these two. libpmem has no version required. libpmemobj
required version >=1.8.

Signed-off-by: Yin Congmin <congmin.yin@intel.com>

cmake/modules/Buildpmem.cmake

@@ -1,4 +1,4 @@
-function(build_pmem)
+function(build_pmem enable_ndctl)
   include(FindMake)
   find_make("MAKE_EXECUTABLE" "make_cmd")
 
@@ -14,6 +14,15 @@ function(build_pmem)
       GIT_CONFIG advice.detachedHead=false)
   endif()
 
+  set(NDCTL_ENABLE)
+  set(LIBPMEM_INTERFACE_LINK_LIBRARIES Threads::Threads)
+  if(${enable_ndctl})
+    list(APPEND NDCTL_ENABLE NDCTL_ENABLE=y)
+    list(APPEND LIBPMEM_INTERFACE_LINK_LIBRARIES ndctl::ndctl daxctl::daxctl)
+  else()
+    list(APPEND NDCTL_ENABLE NDCTL_ENABLE=n)
+  endif()
+
   # Use debug PMDK libs in debug lib/rbd builds
   if(CMAKE_BUILD_TYPE STREQUAL Debug)
     set(PMDK_LIB_DIR "debug")
@@ -25,11 +34,7 @@ function(build_pmem)
   ExternalProject_Add(pmdk_ext
       ${source_dir_args}
       CONFIGURE_COMMAND ""
-      # Explicitly built w/o NDCTL, otherwise if ndtcl is present on the
-      # build system tests statically linking to librbd (which uses
-      # libpmemobj) will not link (because we don't build the ndctl
-      # static library here).
-      BUILD_COMMAND ${make_cmd} CC=${CMAKE_C_COMPILER} EXTRA_CFLAGS=-Wno-error NDCTL_ENABLE=n BUILD_EXAMPLES=n BUILD_BENCHMARKS=n DOC=n
+      BUILD_COMMAND ${make_cmd} CC=${CMAKE_C_COMPILER} EXTRA_CFLAGS=-Wno-error ${NDCTL_ENABLE} BUILD_EXAMPLES=n BUILD_BENCHMARKS=n DOC=n
       BUILD_IN_SOURCE 1
       BUILD_BYPRODUCTS "<SOURCE_DIR>/src/${PMDK_LIB_DIR}/libpmem.a" "<SOURCE_DIR>/src/${PMDK_LIB_DIR}/libpmemobj.a"
       INSTALL_COMMAND "")
@@ -48,7 +53,7 @@ function(build_pmem)
   set_target_properties(pmem::pmem PROPERTIES
     INTERFACE_INCLUDE_DIRECTORIES ${PMDK_INCLUDE}
     IMPORTED_LOCATION "${PMDK_LIB}/libpmem.a"
-    INTERFACE_LINK_LIBRARIES Threads::Threads)
+    INTERFACE_LINK_LIBRARIES "${LIBPMEM_INTERFACE_LINK_LIBRARIES}")
 
   # libpmemobj
   add_library(pmem::pmemobj STATIC IMPORTED GLOBAL)

src/CMakeLists.txt

@@ -482,21 +482,29 @@ if(WIN32)
   list(APPEND ceph_common_deps dlfcn_win32)
 endif()
 
-if(WITH_BLUESTORE_PMEM OR WITH_RBD_RWL)
+if(WITH_BLUESTORE_PMEM)
   find_package(ndctl 63 REQUIRED)
   find_package(daxctl 63 REQUIRED)
   if(WITH_SYSTEM_PMDK)
     set(pmem_COMPONENTS)
-    if(WITH_BLUESTORE_PMEM)
-      list(APPEND pmem_COMPONENTS pmem)
-    endif()
-    if(WITH_RBD_RWL)
-      list(APPEND pmem_COMPONENTS pmemobj)
-    endif()
-    find_package(pmem 1.10 REQUIRED COMPONENTS ${pmem_COMPONENTS})
+    list(APPEND pmem_COMPONENTS pmem)
+    find_package(COMPONENTS ${pmem_COMPONENTS})
+  else()
+    include(Buildpmem)
+    set(enable_ndctl ON)
+    build_pmem(${enable_ndctl})
+  endif()
+endif()
+
+if(WITH_RBD_RWL)
+  if(WITH_SYSTEM_PMDK)
+    set(pmem_COMPONENTS)
+    list(APPEND pmem_COMPONENTS pmemobj)
+    find_package(pmem 1.8 REQUIRED COMPONENTS ${pmem_COMPONENTS})
   else()
     include(Buildpmem)
-    build_pmem()
+    set(enable_ndctl OFF)
+    build_pmem(${enable_ndctl})
   endif()
 endif()