ceph/cmake/modules/BuildRocksDB.cmake
Kefu Chai ff8d6a730b cmake: error out if rocksdb is incompatible w/ tcmalloc
the commit d406f228 in gperf implements a c11 feature used by a
recent change in rocksdb: 16e03882, which uses aligned_alloc().
and 16e03882 in rocksdb was merged after v5.7 was tagged, while
16e03882 in gperf was merged after v2.6.1 was tagged.

because aligned_alloc() is not implemented by tcmalloc until the
not-yet-released 2.6.2, if we call aligned_alloc() in an application
linked against tcmalloc, what gets called will be the glibc's
aligned_alloc(). but if we free() the memory chunk allocated by
aligned_alloc(), the tcmalloc's implementation kicks in, then
InvalidFree() is called, because the memory chunk being freed was
allocated by tcmalloc. in short, "mixing allocators", quote from
Dan Mick.

in rocksdb, aligned_alloc() is used if _ISOC11_SOURCE is defined, this
makes sense, because aligned_alloc() is a C11 function. we could avoid
using it by not defining _ISOC11_SOURCE. but as long as _GNU_SOURCE is
defined, glibc defines _ISOC11_SOURCE. and libstdc++ requires
_GNU_SOURCE, because it uses a fair amount of GNU extensions.

Fixes: http://tracker.ceph.com/issues/21422
Signed-off-by: Kefu Chai <kchai@redhat.com>
2017-09-20 10:23:16 +08:00

69 lines
2.6 KiB
CMake

function(do_build_rocksdb)
set(ROCKSDB_CMAKE_ARGS -DCMAKE_POSITION_INDEPENDENT_CODE=ON)
if(ALLOCATOR STREQUAL "jemalloc")
list(APPEND ROCKSDB_CMAKE_ARGS -DWITH_JEMALLOC=ON)
endif()
if (WITH_CCACHE AND CCACHE_FOUND)
list(APPEND ROCKSDB_CMAKE_ARGS -DCMAKE_CXX_COMPILER=ccache)
list(APPEND ROCKSDB_CMAKE_ARGS -DCMAKE_CXX_COMPILER_ARG1=${CMAKE_CXX_COMPILER})
else()
list(APPEND ROCKSDB_CMAKE_ARGS -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER})
endif()
list(APPEND ROCKSDB_CMAKE_ARGS -DPORTABLE=ON)
list(APPEND ROCKSDB_CMAKE_ARGS -DCMAKE_AR=${CMAKE_AR})
list(APPEND ROCKSDB_CMAKE_ARGS -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE})
if (CMAKE_CXX_COMPILER_ID STREQUAL Clang)
list(APPEND ROCKSDB_CMAKE_ARGS -DFAIL_ON_WARNINGS=OFF)
endif()
# we use an external project and copy the sources to bin directory to ensure
# that object files are built outside of the source tree.
include(ExternalProject)
ExternalProject_Add(rocksdb_ext
SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/rocksdb
CMAKE_ARGS ${ROCKSDB_CMAKE_ARGS}
BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/rocksdb
BUILD_COMMAND $(MAKE) rocksdb
INSTALL_COMMAND "true")
# force rocksdb make to be called on each time
ExternalProject_Add_Step(rocksdb_ext forcebuild
DEPENDEES configure
DEPENDERS build
COMMAND "true"
ALWAYS 1)
endfunction()
macro(build_rocksdb)
do_build_rocksdb()
add_library(rocksdb STATIC IMPORTED)
add_dependencies(rocksdb rocksdb_ext)
set_property(TARGET rocksdb PROPERTY IMPORTED_LOCATION "${CMAKE_CURRENT_BINARY_DIR}/rocksdb/librocksdb.a")
set(ROCKSDB_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/rocksdb/include)
set(ROCKSDB_LIBRARIES rocksdb)
foreach(ver "MAJOR" "MINOR" "PATCH")
file(STRINGS "${ROCKSDB_INCLUDE_DIR}/rocksdb/version.h" ROCKSDB_VER_${ver}_LINE
REGEX "^#define[ \t]+ROCKSDB_${ver}[ \t]+[0-9]+$")
string(REGEX REPLACE "^#define[ \t]+ROCKSDB_${ver}[ \t]+([0-9]+)$"
"\\1" ROCKSDB_VERSION_${ver} "${ROCKSDB_VER_${ver}_LINE}")
unset(ROCKDB_VER_${ver}_LINE)
endforeach()
set(ROCKSDB_VERSION_STRING
"${ROCKSDB_VERSION_MAJOR}.${ROCKSDB_VERSION_MINOR}.${ROCKSDB_VERSION_PATCH}")
if(ALLOCATOR MATCHES "tcmalloc(_minimal)?")
# see http://tracker.ceph.com/issues/21422
if(ROCKSDB_VERSION_STRING VERSION_GREATER 5.7 AND
TCMALLOC_VERSION_STRING VERSION_GREATER 2.5 AND
TCMALLOC_VERSION_STRING VERSION_LESS 2.6.2)
message(SEND_ERROR
"Incompatible tcmalloc v${TCMALLOC_VERSION_STRING} and rocksdb v${ROCKSDB_VERSION_STRING}, "
"please install gperf-tools 2.5 or > 2.6.2")
endif()
endif()
endmacro()