1# 2# CMake Toolchain file for crosscompiling on Atmel Arm products 3# 4# To build without tls 5# 6# cd build/ 7# cmake .. -DCMAKE_INSTALL_PREFIX:PATH=/opt/atmel/cross-root \ 8# -DCMAKE_TOOLCHAIN_FILE=../contrib/cross-atmel.cmake \ 9# -DLWS_PLAT_FREERTOS=1 \ 10# -DLWS_WITH_ZLIB=0 \ 11# -DLWS_WITHOUT_EXTENSIONS=1 \ 12# -DLWS_WITH_ZIP_FOPS=0 \ 13# -DLWS_WITH_HTTP_STREAM_COMPRESSION=0 \ 14# -DLWS_WITH_MBEDTLS=0 \ 15# -DLWS_WITH_SSL=0 \ 16# -DLWS_WITH_FILE_OPS=0 17# 18 19# I had to edit /opt/xdk-asf-3.48.0/thirdparty/lwip/lwip-port-1.4.1-dev/sam/include/arch/cc.h 20# to comment out #define LWIP_PROVIDE_ERRNO 21 22# if your sdk lives somewhere else, this is the only place that should need changing 23 24set(CROSS_BASE /opt/arm-none-eabi) 25set(SDK_BASE /opt/xdk-asf-3.48.0) 26set(CROSS_PATH ${CROSS_BASE}/bin/arm-none-eabi) 27 28set(LWIP_VER 1.4.1-dev) 29set(FREERTOS_VER 10.0.0) 30 31# 32# Target operating system name. 33set(CMAKE_SYSTEM_NAME Generic) 34 35# Name of C compiler. 36set(CMAKE_C_COMPILER "${CROSS_PATH}-gcc") 37 38# 39# cmake believes we should link a NOP test program OK, but since we're 40# baremetal, that's not true in our case. It tries to build this test 41# with the cross compiler, but with no args on it, and it fails. 42# So disable this test for this toolchain (we'll find out soon enough 43# if we actually can't compile anything) 44 45set(CMAKE_C_COMPILER_WORKS 1) 46set(CMAKE_CXX_COMPILER_WORKS 1) 47 48# 49# similarly we're building a .a like this, we can't actually build 50# complete test programs to probe api availability... so force some 51# key ones 52 53set(LWS_HAVE_mbedtls_ssl_conf_alpn_protocols 1) 54set(LWS_HAVE_mbedtls_ssl_conf_alpn_protocols 1) 55set(LWS_HAVE_mbedtls_ssl_get_alpn_protocol 1) 56set(LWS_HAVE_mbedtls_ssl_conf_sni 1) 57set(LWS_HAVE_mbedtls_ssl_set_hs_ca_chain 1) 58set(LWS_HAVE_mbedtls_ssl_set_hs_own_cert 1) 59set(LWS_HAVE_mbedtls_ssl_set_hs_authmode 1) 60set(LWS_HAVE_mbedtls_net_init 1) 61set(LWS_HAVE_mbedtls_md_setup 1) # not on xenial 2.2 62set(LWS_HAVE_mbedtls_rsa_complete 1) # not on xenial 2.2 63set(LWS_HAVE_mbedtls_internal_aes_encrypt 1) 64# 65# Different build system distros set release optimization level to different 66# things according to their local policy, eg, Fedora is -O2 and Ubuntu is -O3 67# here. Actually the build system's local policy is completely unrelated to 68# our desire for cross-build release optimization policy for code built to run 69# on a completely different target than the build system itself. 70# 71# Since this goes last on the compiler commandline we have to override it to a 72# sane value for cross-build here. Notice some gcc versions enable broken 73# optimizations with -O3. 74# 75if (CMAKE_BUILD_TYPE MATCHES RELEASE OR CMAKE_BUILD_TYPE MATCHES Release OR CMAKE_BUILD_TYPE MATCHES release) 76 set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O2") 77 set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2") 78endif() 79 80set(PLAT_ARCH ARM_CM4F) 81set(PLAT_ARCH_CMSIS sam4e) 82set(PLAT_SOC __SAM4E16E__) 83set(PLAT_BOARD SAM4E_XPLAINED_PRO) 84 85set(CF_LWIP "${CF_LWIP} -I${SDK_BASE}/thirdparty/lwip/lwip-${LWIP_VER}/src/include/lwip") 86set(CF_LWIP "${CF_LWIP} -I${SDK_BASE}/thirdparty/lwip/lwip-${LWIP_VER}/src/include/posix") 87set(CF_LWIP "${CF_LWIP} -I${SDK_BASE}/thirdparty/lwip/lwip-${LWIP_VER}/src/include") 88set(CF_LWIP "${CF_LWIP} -I${SDK_BASE}/thirdparty/lwip/lwip-${LWIP_VER}/src/module_config") 89set(CF_LWIP "${CF_LWIP} -I${SDK_BASE}/thirdparty/lwip/lwip-port-${LWIP_VER}/sam/include") 90set(CF_LWIP "${CF_LWIP} -I${SDK_BASE}/thirdparty/lwip/lwip-${LWIP_VER}/src/include/ipv4") 91 92set(CF_FREERTOS "${CF_FREERTOS} -I${SDK_BASE}/thirdparty/freertos/freertos-${FREERTOS_VER}/Source/include") 93set(CF_FREERTOS "${CF_FREERTOS} -I${SDK_BASE}/thirdparty/freertos/freertos-${FREERTOS_VER}/module_config") 94set(CF_FREERTOS "${CF_FREERTOS} -I${SDK_BASE}/thirdparty/freertos/freertos-${FREERTOS_VER}/Source/portable/GCC/${PLAT_ARCH}") 95 96set(CF_SDK_GLUE "${CF_SDK_GLUE} -I${SDK_BASE}/common/boards") 97set(CF_SDK_GLUE "${CF_SDK_GLUE} -I${SDK_BASE}/common/utils") 98set(CF_SDK_GLUE "${CF_SDK_GLUE} -I${SDK_BASE}/sam/utils/") 99set(CF_SDK_GLUE "${CF_SDK_GLUE} -I${SDK_BASE}/sam/utils/preprocessor") 100set(CF_SDK_GLUE "${CF_SDK_GLUE} -I${SDK_BASE}/sam/utils/header_files") 101set(CF_SDK_GLUE "${CF_SDK_GLUE} -I${SDK_BASE}/sam/boards") 102set(CF_SDK_GLUE "${CF_SDK_GLUE} -I${SDK_BASE}/sam/utils/cmsis/${PLAT_ARCH_CMSIS}/source/templates") 103set(CF_SDK_GLUE "${CF_SDK_GLUE} -I${SDK_BASE}/sam/utils/cmsis/${PLAT_ARCH_CMSIS}/include") 104set(CF_SDK_GLUE "${CF_SDK_GLUE} -I${SDK_BASE}/thirdparty/CMSIS/Include") 105set(CF_SDK_GLUE "${CF_SDK_GLUE} -I${SDK_BASE}/common/utils/osprintf") 106 107set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -lnosys -nostartfiles ${CF_LWIP} ${CF_FREERTOS} ${CF_SDK_GLUE} -DBOARD=${PLAT_BOARD} -D${PLAT_SOC} -DLWIP_TIMEVAL_PRIVATE=0 -DLWS_AMAZON_RTOS=1 -DLWIP_SOCKET_OFFSET=0 -DLWIP_COMPAT_SOCKETS -DLWIP_DNS=1 -DLWIP_SOCKETS=1 " CACHE STRING "" FORCE) 108 109# Where to look for the target environment. (More paths can be added here) 110set(CMAKE_FIND_ROOT_PATH "${CROSS_PATH}") 111 112# Adjust the default behavior of the FIND_XXX() commands: 113# search programs in the host environment only. 114set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) 115 116# Search headers and libraries in the target environment only. 117set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) 118set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) 119 120