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cmake: Add toolchain file for cross-compiling.

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commit ae8262a176cfe47cf4a506433abe83d28ab97fe8 1 parent e03fae1
@thughes thughes authored ry committed
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5 Makefile.cmake
@@ -2,12 +2,13 @@ BUILD?=build
VERBOSE?=0
PARALLEL_JOBS?=1
CMAKE?=cmake
+TOOLCHAIN_FILE=#./cmake/codesourcery-arm-toolchain.cmake
-all: doc package
+all: package
$(BUILD)/Makefile:
mkdir $(BUILD) || exit 0
- cd $(BUILD) && $(CMAKE) -DCMAKE_VERBOSE_MAKEFILE=$(VERBOSE) ..
+ cd $(BUILD) && $(CMAKE) -DCMAKE_VERBOSE_MAKEFILE=$(VERBOSE) -DCMAKE_TOOLCHAIN_FILE=$(TOOLCHAIN_FILE) ..
build: $(BUILD)/Makefile
cd $(BUILD) && make -j $(PARALLEL_JOBS)
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12 README.cmake
@@ -38,6 +38,18 @@ To submit valgrind test results:
make -f Makefile.cmake cdash-mem
+Cross-compiling:
+ An example toolchain file for the CodeSourcery ARM toolchain is included in
+ the cmake directory: codesourcery-arm-toolchain.cmake.
+
+ Install the CodeSourcery toolchain, set the path to the toolchain in
+ cmake/codesourcery-arm-toolchain.cmake, and uncomment the TOOLCHAIN_FILE
+ variable in Makefile.cmake to use it.
+
+ If you are using cmake directly, just add the flag
+ "-DCMAKE_TOOLCHAIN_FILE=/path/to/toolchain-file" when
+ running cmake.
+
Using cmake directly:
cd ~/your-node-source-dir
mkdir name-of-build-dir (can be anything)
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22 cmake/codesourcery-arm-toolchain.cmake
@@ -0,0 +1,22 @@
+set(toolchain_dir #SET THIS TO YOUR TOOLCHAIN PATH)
+set(toolchain_bin_dir ${toolchain_dir}/bin)
+set(toolchain_libc_dir ${toolchain_dir}/arm-none-linux-gnueabi/libc)
+set(toolchain_inc_dir ${toolchain_libc_dir}/include)
+set(toolchain_lib_dir ${toolchain_libc_dir}/usr/lib)
+
+set(CMAKE_SYSTEM_NAME Linux CACHE INTERNAL "system name")
+set(CMAKE_SYSTEM_PROCESSOR arm CACHE INTERNAL "processor")
+set(CMAKE_C_COMPILER ${toolchain_bin_dir}/arm-none-linux-gnueabi-gcc)
+set(CMAKE_CXX_COMPILER ${toolchain_bin_dir}/arm-none-linux-gnueabi-g++)
+set(CMAKE_C_FLAGS "-isystem ${toolchain_inc_dir}" CACHE INTERNAL "c compiler flags")
+set(CMAKE_CXX_FLAGS "-isystem ${toolchain_inc_dir}" CACHE INTERNAL "cxx compiler flags")
+
+set(link_flags -L${toolchain_lib_dir})
+
+set(CMAKE_EXE_LINKER_FLAGS ${link_flags} CACHE INTERNAL "exe link flags")
+set(CMAKE_MODULE_LINKER_FLAGS ${link_flags} CACHE INTERNAL "module link flags")
+set(CMAKE_SHARED_LINKER_FLAGS ${link_flags} CACHE INTERNAL "shared lnk flags")
+set(CMAKE_FIND_ROOT_PATH ${toolchain_libc_dir} CACHE INTERNAL "cross root directory")
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM BOTH CACHE INTERNAL "")
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY CACHE INTERNAL "")
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY CACHE INTERNAL "")
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5 cmake/v8_build.cmake
@@ -38,6 +38,7 @@ if(NOT SHARED_V8)
set_property(TARGET v8
PROPERTY IMPORTED_LOCATION ${PROJECT_BINARY_DIR}/deps/v8/${v8_fn})
+ set(compile_env_vars "CC=${CMAKE_C_COMPILER} CXX=${CMAKE_CXX_COMPILER} AR=${CMAKE_AR} RANLIB=${CMAKE_RANLIB} CFLAGS=\"${CMAKE_C_FLAGS}\" CXXFLAGS=\"${CMAKE_CXX_FLAGS}\" LDFLAGS=\"${CMAKE_EXE_LINKER_FLAGS}\"")
if(CMAKE_VERSION VERSION_GREATER 2.8 OR CMAKE_VERSION VERSION_EQUAL 2.8)
# use ExternalProject for CMake >2.8
@@ -47,7 +48,7 @@ if(NOT SHARED_V8)
URL ${PROJECT_SOURCE_DIR}/deps/v8
BUILD_IN_SOURCE True
- BUILD_COMMAND ${PYTHON_EXECUTABLE} ${PROJECT_BINARY_DIR}/tools/scons/scons.py library=static visibility=default ${v8snapshot} mode=${v8mode} verbose=on arch=${v8arch} -j ${parallel_jobs}
+ BUILD_COMMAND sh -c "${compile_env_vars} ${PYTHON_EXECUTABLE} ${PROJECT_BINARY_DIR}/tools/scons/scons.py library=static visibility=default ${v8snapshot} mode=${v8mode} verbose=on arch=${v8arch} -j ${parallel_jobs}"
SOURCE_DIR ${PROJECT_BINARY_DIR}/deps/v8
# ignore this stuff, it's not needed for building v8 but ExternalProject
@@ -78,7 +79,7 @@ if(NOT SHARED_V8)
add_custom_command(
OUTPUT ${PROJECT_BINARY_DIR}/deps/v8/${v8_fn}
- COMMAND ${PYTHON_EXECUTABLE} ${PROJECT_BINARY_DIR}/tools/scons/scons.py library=static visibility=default ${v8snapshot} mode=${v8mode} verbose=on arch=${v8arch} -j ${parallel_jobs}
+ COMMAND sh -c "${compile_env_vars} ${PYTHON_EXECUTABLE} ${PROJECT_BINARY_DIR}/tools/scons/scons.py library=static visibility=default ${v8snapshot} mode=${v8mode} verbose=on arch=${v8arch} -j ${parallel_jobs}"
WORKING_DIRECTORY ${PROJECT_BINARY_DIR}/deps/v8/
DEPENDS ${v8_sources_dest}
)
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