178 lines
7.4 KiB
CMake
178 lines
7.4 KiB
CMake
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#=============================================================================
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# Copyright 2010 Kitware, Inc.
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# Copyright 2010 Todd Gamblin <tgamblin@llnl.gov>
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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#
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# Blue Gene/Q base platform file.
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#
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# NOTE: Do not set your platform to "BlueGeneQ-base". This file is
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# included by the real platform files. Use one of these two platforms
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# instead:
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#
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# BlueGeneQ-dynamic For dynamically linked executables
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# BlueGeneQ-static For statically linked executables
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#
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# The platform you choose doesn't affect whether or not you can build
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# shared or static libraries -- it ONLY changs whether exeuatbles are linked
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# statically or dynamically.
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#
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# This platform file tries its best to adhere to the behavior of the MPI
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# compiler wrappers included with the latest BG/P drivers.
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#
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#
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# This adds directories that find commands should specifically ignore
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# for cross compiles. Most of these directories are the includeand
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# lib directories for the frontend on BG/P systems. Not ignoring
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# these can cause things like FindX11 to find a frontend PPC version
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# mistakenly. We use this on BG instead of re-rooting because backend
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# libraries are typically strewn about the filesystem, and we can't
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# re-root ALL backend libraries to a single place.
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#
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set(CMAKE_SYSTEM_IGNORE_PATH
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/lib /lib64 /include
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/usr/lib /usr/lib64 /usr/include
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/usr/local/lib /usr/local/lib64 /usr/local/include
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/usr/X11/lib /usr/X11/lib64 /usr/X11/include
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/usr/lib/X11 /usr/lib64/X11 /usr/include/X11
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/usr/X11R6/lib /usr/X11R6/lib64 /usr/X11R6/include
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/usr/X11R7/lib /usr/X11R7/lib64 /usr/X11R7/include
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)
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#
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# Indicate that this is a unix-like system
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#
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set(UNIX 1)
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#
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# Library prefixes, suffixes, extra libs.
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#
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set(CMAKE_LINK_LIBRARY_SUFFIX "")
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set(CMAKE_STATIC_LIBRARY_PREFIX "lib") # lib
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set(CMAKE_STATIC_LIBRARY_SUFFIX ".a") # .a
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set(CMAKE_SHARED_LIBRARY_PREFIX "lib") # lib
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set(CMAKE_SHARED_LIBRARY_SUFFIX ".so") # .so
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set(CMAKE_EXECUTABLE_SUFFIX "") # .exe
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set(CMAKE_DL_LIBS "dl")
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#
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# BG/Q supports dynamic libraries regardless of whether we're building
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# static or dynamic *executables*.
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#
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set_property(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS TRUE)
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set(CMAKE_FIND_LIBRARY_PREFIXES "lib")
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#
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# For BGQ builds, we're cross compiling, but we don't want to re-root things
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# (e.g. with CMAKE_FIND_ROOT_PATH) because users may have libraries anywhere on
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# the shared filesystems, and this may lie outside the root. Instead, we set the
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# system directories so that the various system BG CNK library locations are
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# searched first. This is not the clearest thing in the world, given IBM's driver
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# layout, but this should cover all the standard ones.
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#
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macro(__BlueGeneQ_common_setup compiler_id lang)
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# Need to use the version of the comm lib compiled with the right compiler.
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set(__BlueGeneQ_commlib_dir gcc)
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if (${compiler_id} STREQUAL XL)
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set(__BlueGeneQ_commlib_dir xl)
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endif()
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set(CMAKE_SYSTEM_LIBRARY_PATH
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/bgsys/drivers/ppcfloor/comm/default/lib # default comm layer (used by mpi compiler wrappers)
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/bgsys/drivers/ppcfloor/comm/${__BlueGeneQ_commlib_dir}/lib # PAMI, other lower-level comm libraries
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/bgsys/drivers/ppcfloor/gnu-linux/lib # CNK python installation directory
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/bgsys/drivers/ppcfloor/gnu-linux/powerpc64-bgq-linux/lib # CNK Linux image -- standard runtime libs, pthread, etc.
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)
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# Add all the system include paths.
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set(CMAKE_SYSTEM_INCLUDE_PATH
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/bgsys/drivers/ppcfloor/comm/sys/include
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/bgsys/drivers/ppcfloor/
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/bgsys/drivers/ppcfloor/spi/include
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/bgsys/drivers/ppcfloor/spi/include/kernel/cnk
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/bgsys/drivers/ppcfloor/comm/${__BlueGeneQ_commlib_dir}/include
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)
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# Ensure that the system directories are included with the regular compilers, as users will expect this
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# to do the same thing as the MPI compilers, which add these flags.
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set(BGQ_SYSTEM_INCLUDES "")
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foreach(dir ${CMAKE_SYSTEM_INCLUDE_PATH})
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set(BGQ_SYSTEM_INCLUDES "${BGQ_SYSTEM_INCLUDES} -I${dir}")
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endforeach()
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set(CMAKE_C_COMPILE_OBJECT "<CMAKE_C_COMPILER> <DEFINES> ${BGQ_SYSTEM_INCLUDES} <FLAGS> -o <OBJECT> -c <SOURCE>")
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set(CMAKE_CXX_COMPILE_OBJECT "<CMAKE_CXX_COMPILER> <DEFINES> ${BGQ_SYSTEM_INCLUDES} <FLAGS> -o <OBJECT> -c <SOURCE>")
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#
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# Code below does setup for shared libraries. That this is done
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# regardless of whether the platform is static or dynamic -- you can make
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# shared libraries even if you intend to make static executables, you just
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# can't make a dynamic executable if you use the static platform file.
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#
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if (${compiler_id} STREQUAL XL)
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# Flags for XL compilers if we explicitly detected XL
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set(CMAKE_SHARED_LIBRARY_${lang}_FLAGS "-qpic")
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set(CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS "-qmkshrobj -qnostaticlink")
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else()
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# Assume flags for GNU compilers (if the ID is GNU *or* anything else).
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set(CMAKE_SHARED_LIBRARY_${lang}_FLAGS "-fPIC")
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set(CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS "-shared")
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endif()
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# Both toolchains use the GNU linker on BG/P, so these options are shared.
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set(CMAKE_SHARED_LIBRARY_RUNTIME_${lang}_FLAG "-Wl,-rpath,")
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set(CMAKE_SHARED_LIBRARY_RPATH_LINK_${lang}_FLAG "-Wl,-rpath-link,")
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set(CMAKE_SHARED_LIBRARY_SONAME_${lang}_FLAG "-Wl,-soname,")
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set(CMAKE_EXE_EXPORTS_${lang}_FLAG "-Wl,--export-dynamic")
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set(CMAKE_SHARED_LIBRARY_LINK_${lang}_FLAGS "") # +s, flag for exe link to use shared lib
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set(CMAKE_SHARED_LIBRARY_RUNTIME_${lang}_FLAG_SEP ":") # : or empty
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endmacro()
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#
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# This macro needs to be called for dynamic library support. Unfortunately on BG,
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# We can't support both static and dynamic links in the same platform file. The
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# dynamic link platform file needs to call this explicitly to set up dynamic linking.
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#
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macro(__BlueGeneQ_setup_dynamic compiler_id lang)
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__BlueGeneQ_common_setup(${compiler_id} ${lang})
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if (${compiler_id} STREQUAL XL)
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set(BGQ_${lang}_DYNAMIC_EXE_FLAGS "-qnostaticlink -qnostaticlink=libgcc")
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else()
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set(BGQ_${lang}_DYNAMIC_EXE_FLAGS "-dynamic")
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endif()
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# For dynamic executables, need to provide special BG/Q arguments.
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set(BGQ_${lang}_DEFAULT_EXE_FLAGS
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"<FLAGS> <CMAKE_${lang}_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>")
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set(CMAKE_${lang}_LINK_EXECUTABLE
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"<CMAKE_${lang}_COMPILER> -Wl,-relax ${BGQ_${lang}_DYNAMIC_EXE_FLAGS} ${BGQ_${lang}_DEFAULT_EXE_FLAGS}")
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endmacro()
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#
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# This macro needs to be called for static builds. Right now it just adds -Wl,-relax
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# to the link line.
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#
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macro(__BlueGeneQ_setup_static compiler_id lang)
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__BlueGeneQ_common_setup(${compiler_id} ${lang})
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# For static executables, use default link settings.
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set(BGQ_${lang}_DEFAULT_EXE_FLAGS
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"<FLAGS> <CMAKE_${lang}_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>")
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set(CMAKE_${lang}_LINK_EXECUTABLE
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"<CMAKE_${lang}_COMPILER> -Wl,-relax ${BGQ_${lang}_DEFAULT_EXE_FLAGS}")
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endmacro()
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