I'm trying to compile code for an ARM processor on an x86-64 Ubuntu
machine. I'm using scratchbox, compiling programes with the standard
autoconf/configure scripts work fine so the cross compiler works.
When I use Cmake I runinto problems, the following is my arm_cross.cmake
file
INCLUDE(CMakeForceCompiler)
SET(CMAKE_SYSTEM_NAME Linux)
SET(CMAKE_SYSTEM_VERSION 1)
CMAKE_FORCE_C_COMPILER(gcc GNU)
CMAKE_FORCE_CXX_COMPILER(g++ GNU)
SET(CMAKE_AR
/scratchbox/compilers/arm-linux-cs2010q1-202/bin/sbox-arm-none-linux-gnueabi-ar)
SET(CMAKE_LD /usr/bin/ld)
SET(CMAKE_C_LINK_EXECUTABLE "/scratchbox/compilers/bin/gcc <FLAGS>
<CMAKE_C_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>")
I have put together a quick test program with the following CMakeLists.txt
add_executable (test test.c)
All is good when I run
cmake -DCMAKE_TOOLCHAIN_FILE=../arm_cross.cmake .
then on running make I get
Scanning dependencies of target test
[100%] Building C object CMakeFiles/test.dir/test.c.o
Linking C executable test
/scratchbox/compilers/arm-linux-cs2010q1-202/bin/sbox-arm-none-linux-gnueabi-gcc:
No such file or directory
make[2]: *** [test] Error 1
make[1]: *** [CMakeFiles/test.dir/all] Error 2
make: *** [all] Error 2
I have tried it with and without the last line in the target file and
the result is the same. If I force it to use the ARM version of gcc for
linking by setting
SET(CMAKE_C_LINK_EXECUTABLE "/usr/bin/gcc <FLAGS> <CMAKE_C_LINK_FLAGS>
<LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>")
then it fails on a call to ld, which it guesses correctly but complians
with the following output
Linking C executable test
sb_gcc_wrapper (/scratchbox/compilers/bin/ld):
/scratchbox/compilers/arm-linux-cs2010q1-202/bin/sbox-arm-none-linux-gnueabi-ld:
No such file or directory
collect2: ld returned 1 exit status
make[2]: *** [test] Error 1
make[1]: *** [CMakeFiles/test.dir/all] Error 2
make: *** [all] Error 2
Why is it that it doesn't like using the cross compiler for linking?
How do I get this to work?
TIA
Christian
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