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CMake: add toolchain file for OpenWrt

This commit is contained in:
Matteo Cypriani 2013-05-22 15:44:26 -04:00
parent 1a30b90683
commit 2bfd0ee009
1 changed files with 70 additions and 0 deletions
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70
cmake/Toolchains/OpenWrt.cmake Normal file
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# Toolchain file for OpenWrt
### OpenWrt options ###
#
# These options should be overriden by the user as needed when calling
# cmake (-D option).
# OpenWrt root: /opt by default
set(OPENWRT_ROOT /opt/openwrt CACHE STRING
"OpenWrt tools' base path")
# OpenWrt version: trunk (default), 10.03, 12.09, etc.
set(OPENWRT_VERSION trunk CACHE STRING
"OpenWrt version")
# OpenWrt architecture: mips (default), x86, etc.
set(OPENWRT_ARCH mips CACHE STRING
"OpenWrt architecture")
# OpenWrt target: atheros (default), ar71xx, etc.
set(OPENWRT_TARGET atheros CACHE STRING
"OpenWrt target")
### Toolchain options ###
# The target OS is Linux
set(CMAKE_SYSTEM_NAME Linux)
# Toolchain paths
set(TOOLCHAIN_PREFIX "${OPENWRT_ROOT}/${OPENWRT_TARGET}/${OPENWRT_VERSION}")
set(TOOLCHAIN1 "${TOOLCHAIN_PREFIX}/toolchain_gcc_uClibc")
set(TOOLCHAIN2 "${TOOLCHAIN_PREFIX}/target_uClibc")
set(CMAKE_FIND_ROOT_PATH "${TOOLCHAIN1}" "${TOOLCHAIN2}")
if (${OPENWRT_VERSION} VERSION_EQUAL 10.03)
set(TOOLCHAIN_BIN "${TOOLCHAIN1}/usr/bin")
else()
set(TOOLCHAIN_BIN "${TOOLCHAIN1}/bin")
endif()
set(STAGING_DIR "${TOOLCHAIN_PREFIX}/staging_dir")
# Cross-compiler
set(COMPILER_PREFIX "${TOOLCHAIN_BIN}/${OPENWRT_ARCH}-openwrt-linux-")
set(CMAKE_C_COMPILER "${COMPILER_PREFIX}gcc")
set(CMAKE_CXX_COMPILER "${COMPILER_PREFIX}g++")
# Search libraries and headers only in the toolchain directories
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
### Generate the make.sh script ###
#
# It's a pitty, but we have to do that because environment variables are
# not exported to sub-processes within targets, so calling
# set(ENV{STAGING_DIR} "${STAGING_DIR}")
# alone has no effect. (Note that it does work in execute_process()
# commands.)
set(MAKE_SCRIPT "${CMAKE_BINARY_DIR}/make.sh")
message(STATUS "Generating ${MAKE_SCRIPT}")
file(WRITE "${MAKE_SCRIPT}"
"#!/bin/sh
export STAGING_DIR=\"${STAGING_DIR}\"
exec make \"$@\"
")
execute_process(COMMAND chmod u+x "${MAKE_SCRIPT}")