initial code repo

This patch creates initial code repo.

For ceph, luminous stable release will be used for base code,
and next changes and optimization for ceph will be added to it.

For opensds, currently any changes can be upstreamed into original
opensds repo (https://github.com/opensds/opensds), and so stor4nfv
will directly clone opensds code to deploy stor4nfv environment.
And the scripts for deployment based on ceph and opensds will be
put into 'ci' directory.

Change-Id: I46a32218884c75dda2936337604ff03c554648e4
Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>

1 files changed, 85 insertions, 0 deletions

diff --git a/src/ceph/cmake/modules/MergeStaticLibraries.cmake b/src/ceph/cmake/modules/MergeStaticLibraries.cmake
new file mode 100644
index 0000000..92d4156
--- /dev/null
+++ b/src/ceph/cmake/modules/MergeStaticLibraries.cmake
@@ -0,0 +1,85 @@
+# This function is a helper that will merge static libraries.
+# For example,
+#
+#    merge_static_libraries(mylib staticlibX staticlibY)
+#
+# mylib.a will generate a new static library mylib that is
+# a combination of staticlibX and staticlibY
+#
+function(merge_static_libraries target)
+
+    set(dummy_source ${CMAKE_CURRENT_BINARY_DIR}/${target}_dummy.c)
+    add_library(${target} STATIC ${dummy_source})
+
+    # remove duplicates
+    set(libs ${ARGN})
+    list(REMOVE_DUPLICATES libs)
+
+    # validate that all libs are static
+    foreach(lib ${libs})
+        if (NOT TARGET ${lib})
+            message(FATAL_ERROR "${lib} not a valid target")
+        endif()
+
+        get_target_property(libtype ${lib} TYPE)
+        if(NOT libtype STREQUAL "STATIC_LIBRARY")
+            message(FATAL_ERROR "${lib} not a static library")
+        endif()
+
+        # add a dependency on the lib
+        add_dependencies(${target} ${lib})
+    endforeach()
+
+    # Force the merged Make the generated dummy source file depended on all static input
+    # libs. If input lib changes,the source file is touched
+    # which causes the desired effect (relink).
+    add_custom_command(
+        OUTPUT  ${dummy_source}
+        COMMAND ${CMAKE_COMMAND} -E touch ${dummy_source}
+        DEPENDS ${libs})
+
+    # only LINUX is currently supported. OSX's libtool and windows lib.exe
+    # have native support for merging static libraries, and support for them
+    # can be easily added if required.
+    if(LINUX)
+        # generate a script to merge the static libraries in to the target
+        # library. see https://sourceware.org/binutils/docs/binutils/ar-scripts.html
+        set(mri_script "open $<TARGET_FILE:${target}>=")
+        foreach(lib ${libs})
+            # we use the generator expression TARGET_FILE to get the location
+            # of the library. this will not be expanded until the script file
+            # is written below
+            set(mri_script "${mri_script} addlib $<TARGET_FILE:${lib}>=")
+        endforeach()
+        set(mri_script "${mri_script} save=end")
+
+        add_custom_command(
+            TARGET ${target} POST_BUILD
+            COMMAND echo ${mri_script} | tr = \\\\n | ${CMAKE_AR} -M)
+    endif(LINUX)
+
+    message("-- MergeStaticLibraries: ${target}: merged ${libs}")
+
+    # we want to set the target_link_libraries correctly for the new merged
+    # static library. First we get the list of link libraries for each
+    # of the libs we are merging
+    set(link_libs)
+    foreach(lib ${libs})
+      get_property(trans TARGET ${lib} PROPERTY LINK_LIBRARIES)
+      list(APPEND link_libs ${trans})
+    endforeach()
+
+    if (link_libs)
+        # now remove the duplicates and any of the libraries we already merged
+        list(REMOVE_DUPLICATES link_libs)
+        foreach(lib ${libs})
+            list(REMOVE_ITEM link_libs ${lib})
+        endforeach()
+
+        # set the target link libraries
+        target_link_libraries(${target} ${link_libs})
+
+        message("-- MergeStaticLibraries: ${target}: remaining ${link_libs}")
+    endif()
+
+endfunction()