CMakeLists.txt

project(xmr-stak)

cmake_minimum_required(VERSION 3.4.0)

# enforce C++11
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
set(CMAKE_CXX_STANDARD 11)

if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
    set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}" CACHE PATH "install prefix" FORCE)
endif(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)

# help to find AMD OCL SDK Light (replaced APP SDK)
list(APPEND CMAKE_PREFIX_PATH "$ENV{OCL_ROOT}")

# help to find AMD app SDK on systems with a software module system
list(APPEND CMAKE_PREFIX_PATH "$ENV{AMDAPPSDKROOT}")

# allow user to extent CMAKE_PREFIX_PATH via environment variable
list(APPEND CMAKE_PREFIX_PATH "$ENV{CMAKE_PREFIX_PATH}")

################################################################################
# CMake user options
################################################################################

# gcc 5.1 is the first GNU version without CoW strings
# https://github.com/fireice-uk/xmr-stak-nvidia/pull/10#issuecomment-290821792
# If you remove this guard to compile with older gcc versions the miner will produce
# a high rate of wrong shares.
if(${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU")
    if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.1)
        message(FATAL_ERROR "g++ version must be at least 5.1!")
    endif()
endif()

set(BUILD_TYPE "Release;Debug")
if(NOT CMAKE_BUILD_TYPE)
    set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose the type of build" FORCE)
endif()
set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "${BUILD_TYPE}")

set(XMR-STAK_COMPILE "native" CACHE STRING "select CPU compute architecture")
set_property(CACHE XMR-STAK_COMPILE PROPERTY STRINGS "native;generic")
if(XMR-STAK_COMPILE STREQUAL "native")
    if(NOT CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
        set(CMAKE_CXX_FLAGS "-march=native -mtune=native ${CMAKE_CXX_FLAGS}")
        set(CMAKE_C_FLAGS "-march=native -mtune=native ${CMAKE_C_FLAGS}")
    endif()
elseif(XMR-STAK_COMPILE STREQUAL "generic")
    add_definitions("-DCONF_ENFORCE_OpenCL_1_2=1")
else()
    message(FATAL_ERROR "XMR-STAK_COMPILE is set to an unknown value '${XMR-STAK_COMPILE}'")
endif()

# option to add static libgcc and libstdc++
option(CMAKE_LINK_STATIC "link as much as possible libraries static" OFF)

################################################################################
# Find CUDA
################################################################################
#option(CUDA_USE_STATIC_CUDA_RUNTIME "Use the static version of the CUDA runtime library if available" OFF)
#set(CUDA_USE_STATIC_CUDA_RUNTIME OFF CACHE BOOL "Use the static version of the CUDA runtime library if available" FORCE)

add_definitions("-DCONF_NO_CUDA")

###############################################################################
# Find OpenCL
###############################################################################

option(OpenCL_ENABLE "Enable or disable OpenCL spport (AMD GPU support)" ON)
if(OpenCL_ENABLE)
    # try to find AMD OpenCL before NVIDIA OpenCL
    find_path(OpenCL_INCLUDE_DIR
        NAMES
            CL/cl.h
            OpenCL/cl.h
        NO_DEFAULT_PATH
        PATHS
            ENV "OCL_ROOT"
            ENV "OpenCL_ROOT"
            ENV AMDAPPSDKROOT
            ENV ATISTREAMSDKROOT
            ENV "PROGRAMFILES(X86)"
            /usr
        PATH_SUFFIXES
            include
            OpenCL/common/inc
            "AMD APP/include")

    find_library(OpenCL_LIBRARY
        NAMES
            OpenCL
            OpenCL.lib
        NO_DEFAULT_PATH
        PATHS
            ENV "OCL_ROOT"
            ENV "OpenCL_ROOT"
            ENV AMDAPPSDKROOT
            ENV ATISTREAMSDKROOT
            ENV "PROGRAMFILES(X86)"
        PATH_SUFFIXES
            "AMD APP/lib/x86_64"
            lib/x86_64
            lib/x86_64-linux-gnu
            lib/x64
            OpenCL/common/lib/x64)
    # find package will use the previews searched path variables
    find_package(OpenCL)
    if(OpenCL_FOUND)
        list(APPEND BACKEND_TYPES "amd")
        include_directories(SYSTEM ${OpenCL_INCLUDE_DIRS})
        #set(LIBS ${LIBS} ${OpenCL_LIBRARY})
        link_directories(${OpenCL_LIBRARY})
    else()
        message(FATAL_ERROR "OpenCL NOT found: use `-DOpenCL_ENABLE=OFF` to build without OpenCL support for AMD gpu's")
    endif()
else()
    add_definitions("-DCONF_NO_OPENCL")
endif()

###############################################################################
# CPU backend
###############################################################################

option(CPU_ENABLE "Enable or disable CPU support" ON)
if(NOT CPU_ENABLE)
    add_definitions("-DCONF_NO_CPU")
else()
    list(APPEND BACKEND_TYPES "cpu")
endif()

################################################################################
# Explicit march setting for Clang
################################################################################

if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
    set_source_files_properties(xmrstak/backend/cpu/crypto/cn_gpu_avx.cpp PROPERTIES COMPILE_FLAGS "-mavx2")
endif()

################################################################################
# Find PThreads
################################################################################
find_package(Threads REQUIRED)
set(LIBS ${LIBS} ${CMAKE_THREAD_LIBS_INIT})

################################################################################
# Find microhttpd
################################################################################

option(MICROHTTPD_ENABLE "Enable or disable the requirement of microhttp (http daemon)" ON)
if(MICROHTTPD_ENABLE)
    find_path(MTHD_INCLUDE_DIR
        NAMES
            microhttpd.h
        PATHS
            /opt/local
            /usr/local
            /usr
            ENV "PROGRAMFILES(X86)"
            ENV "MICROHTTPD_ROOT"
        PATH_SUFFIXES
            include)

    find_library(MHTD
        NAMES
            microhttpd
            libmicrohttpd.lib
        PATHS
            ENV "MICROHTTPD_ROOT"
        PATH_SUFFIXES
            lib)
    if(MHTD STREQUAL "MHTD-NOTFOUND")
        message(FATAL_ERROR "microhttpd NOT found: use `-DMICROHTTPD_ENABLE=OFF` to build without http daemon support")
    else()
        set(LIBS ${LIBS} ${MHTD})
        include_directories(AFTER ${MTHD_INCLUDE_DIR})
    endif()
else()
    add_definitions("-DCONF_NO_HTTPD")
endif()

###############################################################################
# Find OpenSSL
###############################################################################

option(OpenSSL_ENABLE "Enable or disable the requirement of OpenSSL" ON)
if(OpenSSL_ENABLE)
    find_package(OpenSSL)
    if(OPENSSL_FOUND)
        include_directories(${OPENSSL_INCLUDE_DIR})
        set(LIBS ${LIBS} ${OPENSSL_LIBRARIES})
    else()
        message(FATAL_ERROR "OpenSSL NOT found: use `-DOpenSSL_ENABLE=OFF` to build without SSL support")
    endif()
else()
    add_definitions("-DCONF_NO_TLS")
endif()

################################################################################
# Find hwloc
################################################################################

option(HWLOC_ENABLE "Enable or disable the requirement of hwloc" ON)
if(HWLOC_ENABLE)
    find_path(HWLOC_INCLUDE_DIR
        NAMES
            hwloc.h
        PATHS
            /opt/local
            /usr/local
            /usr
            ENV "PROGRAMFILES(X86)"
            ENV "HWLOC_ROOT"
        PATH_SUFFIXES
            include)

    find_library(HWLOC
        NAMES
            libhwloc.lib
            hwloc
        PATHS
            ENV "HWLOC_ROOT"
        PATH_SUFFIXES
            lib)

    if(HWLOC STREQUAL "HWLOC-NOTFOUND" OR ${HWLOC_INCLUDE_DIR} STREQUAL "HWLOC_INCLUDE_DIR-NOTFOUND")
        message(FATAL_ERROR "hwloc NOT found: use `-DHWLOC_ENABLE=OFF` to build without hwloc support")
    else()
        set(LIBS ${LIBS} ${HWLOC})
        include_directories(AFTER ${HWLOC_INCLUDE_DIR})
    endif()
else()
    add_definitions("-DCONF_NO_HWLOC")
endif()

################################################################################
# Versioning
################################################################################

# Get the current working branch
execute_process(
  COMMAND git rev-parse --abbrev-ref HEAD
  WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
  OUTPUT_VARIABLE GIT_BRANCH
  OUTPUT_STRIP_TRAILING_WHITESPACE
)

# Get the latest abbreviated commit hash of the working branch
execute_process(
  COMMAND git log -1 --format=%h
  WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
  OUTPUT_VARIABLE GIT_COMMIT_HASH
  OUTPUT_STRIP_TRAILING_WHITESPACE
)

if(NOT GIT_COMMIT_HASH STREQUAL "")
    add_definitions("-DGIT_COMMIT_HASH=${GIT_COMMIT_HASH}")
endif()
if(NOT GIT_BRANCH STREQUAL "")
    add_definitions("-DGIT_BRANCH=${GIT_BRANCH}")
endif()

# generate backend string
string(REPLACE ";" "-" STR_BACKEND_TYPES "${BACKEND_TYPES}")
add_definitions("-DBACKEND_TYPE=${STR_BACKEND_TYPES}")

################################################################################
# Compile & Link
################################################################################

include_directories(BEFORE .)

set (CMAKE_POSITION_INDEPENDENT_CODE TRUE)

if(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
    # remove warnings that f_open() is not save and f_open_s should be used
    add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
    # disable min define to allow usage of std::min
    add_definitions(-DNOMINMAX)
else()
    # activate sse2 and aes-ni
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse2 -maes")
    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -msse2 -maes")
endif()

# add -Wall for debug builds with gcc
if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
    if(CMAKE_BUILD_TYPE STREQUAL "Debug")
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")
        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
    endif()
endif()

if(${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU")
    set(CMAKE_CXX_FLAGS "-Wl,-z,noexecstack ${CMAKE_CXX_FLAGS}")
    set(CMAKE_C_FLAGS "-Wl,-z,noexecstack ${CMAKE_C_FLAGS}")
endif()

# activate static libgcc and libstdc++ linking
if(CMAKE_LINK_STATIC)
    set(BUILD_SHARED_LIBRARIES OFF)
    set(DL_LIB ${CMAKE_DL_LIBS})
    set(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
    if(${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU" OR ${CMAKE_C_COMPILER_ID} STREQUAL "GNU")
        set(LIBS "-static-libgcc -static-libstdc++ ${LIBS}")
    endif()
endif()

if(CMAKE_C_COMPILER_ID MATCHES "MSVC")
    # asm optimized monero v8 code
    enable_language(ASM_MASM)
    set_property(SOURCE "xmrstak/backend/cpu/crypto/asm/cryptonight_v8_main_loop.asm" PROPERTY ASM_MASM)
    set_property(SOURCE "xmrstak/backend/cpu/crypto/asm/cnR/CryptonightR_template.asm" PROPERTY ASM_MASM)
    add_library(xmr-stak-asm
        STATIC
        "xmrstak/backend/cpu/crypto/asm/cryptonight_v8_main_loop.asm"
        "xmrstak/backend/cpu/crypto/asm/cnR/CryptonightR_template.asm"
    )
else()
    # asm optimized monero v8 code
    enable_language(ASM)
    set_property(SOURCE "xmrstak/backend/cpu/crypto/asm/cryptonight_v8_main_loop.S" PROPERTY CPP)
    set_property(SOURCE "xmrstak/backend/cpu/crypto/asm/cnR/CryptonightR_template.S" PROPERTY CPP)
    set_source_files_properties("xmrstak/backend/cpu/crypto/asm/cryptonight_v8_main_loop.S" PROPERTIES COMPILE_FLAGS "-x assembler-with-cpp")
    set_source_files_properties("xmrstak/backend/cpu/crypto/asm/cnR/CryptonightR_template.S" PROPERTIES COMPILE_FLAGS "-x assembler-with-cpp")
    add_library(xmr-stak-asm
        STATIC
        "xmrstak/backend/cpu/crypto/asm/cryptonight_v8_main_loop.S"
        "xmrstak/backend/cpu/crypto/asm/cnR/CryptonightR_template.S"
    )
endif()

set_property(TARGET xmr-stak-asm PROPERTY LINKER_LANGUAGE C)

# compile C files
file(GLOB SRCFILES_C "xmrstak/backend/cpu/crypto/*.c")

add_library(xmr-stak-c
    STATIC
    ${SRCFILES_C}
)
set_property(TARGET xmr-stak-c PROPERTY C_STANDARD 99)
if(MICROHTTPD_ENABLE)
    target_link_libraries(xmr-stak-c ${MHTD})
endif()
target_link_libraries(xmr-stak-c ${LIBS} xmr-stak-asm)

# compile generic backend files
file(GLOB BACKEND_CPP
    "xmrstak/*.cpp"
    "xmrstak/backend/cpu/*.cpp"
    "xmrstak/backend/*.cpp"
    "xmrstak/backend/cpu/crypto/*.cpp"
    "xmrstak/http/*.cpp"
    "xmrstak/misc/*.cpp"
    "xmrstak/net/*.cpp")

add_library(xmr-stak-backend
    STATIC
    ${BACKEND_CPP}
)
target_link_libraries(xmr-stak-backend xmr-stak-c ${CMAKE_DL_LIBS} xmr-stak-asm)

# compile AMD backend
if(OpenCL_FOUND)
    file(GLOB OPENCLSRCFILES
        "xmrstak/backend/amd/amd_gpu/*.cpp"
        "xmrstak/backend/amd/*.cpp")
    add_library(xmrstak_opencl_backend
        SHARED
        ${OPENCLSRCFILES}
    )
    target_link_libraries(xmrstak_opencl_backend ${OpenCL_LIBRARY} )
    target_link_libraries(xmrstak_opencl_backend xmr-stak-backend xmr-stak-asm)
endif()

# compile final binary
file(GLOB SRCFILES_CPP "xmrstak/cli/*.cpp")
set_source_files_properties(${SRCFILES_CPP} PROPERTIES LANGUAGE CXX)

if(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
    add_executable(xmr-stak ${SRCFILES_CPP} xmrstak/cli/xmr-stak.manifest)
else()
    add_executable(xmr-stak ${SRCFILES_CPP})
endif()

set(EXECUTABLE_OUTPUT_PATH "bin" CACHE STRING "Path to place executables relative to ${CMAKE_INSTALL_PREFIX}")
set(LIBRARY_OUTPUT_PATH "bin" CACHE STRING "Path to place libraries relative to ${CMAKE_INSTALL_PREFIX}")

target_link_libraries(xmr-stak ${LIBS} xmr-stak-c xmr-stak-backend xmr-stak-asm)

################################################################################
# Install
################################################################################

# do not install the binary if the project and install are equal
if( NOT CMAKE_INSTALL_PREFIX STREQUAL PROJECT_BINARY_DIR )
    install(TARGETS xmr-stak
            RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}/${EXECUTABLE_OUTPUT_PATH}")
    if(OpenCL_FOUND)
        install(TARGETS xmrstak_opencl_backend
            LIBRARY DESTINATION "${CMAKE_INSTALL_PREFIX}/${LIBRARY_OUTPUT_PATH}")
    endif()
else()
    # this rule is used if the install prefix is the build directory
    install(CODE "MESSAGE(\"xmr-stak installed to folder 'bin'\")")
endif()