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Building a project with CMake

Michael Holmes
Intellectual 550 points
Other Parts Discussed in Thread: HALCOGEN

Hi,

I'm trying to use CMake to build my project and need some help.  I've read the CMake wiki on cross compiling with a tool chain file and seen other people discussing in the forums using CMake, so I'm optimistic that is can be done.

My setup:

CCS v5.4.0 for ARM Cortext R (Hercules RM46)

Ubuntu Linux 12.04

CMake v2.8.12.1

To start, I'm trying to compile some c and asm files from HalCoGen into a library.  I invoke CMake with the following results:

cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=debug -DCMAKE_TOOLCHAIN_FILE=../RM46_CCS.cmake ..

-- The C compiler identification is TI 5.0.4

-- The CXX compiler identification is TI 5.0.4

-- Detecting C compiler ABI info

-- Detecting C compiler ABI info - failed

-- Detecting CXX compiler ABI info

-- Detecting CXX compiler ABI info - failed

-- Configuring done

-- Generating done

-- Build files have been written to: /home/michael/ws/workspace/cmake_spike/_debug

 When I invoke make, it compiles the c files, ignores the asm files, and tries to link with the following error message:

Linking C static library librm4.a

Error running link command: No such file or directory

If you look at my toolchain file (

Fullscreen 0456.RM46_CCS.cmake.txt Download 
set(CMAKE_SYSTEM_NAME Hercules_CCS)

set(HERCULES_PATH /opt/ti/ccsv5/tools/compiler/arm_5.0.4)


# specify the cross compiler
set(CMAKE_C_COMPILER   "${HERCULES_PATH}/bin/armcl")
set(CMAKE_CXX_COMPILER ${CMAKE_C_COMPILER})
set(CMAKE_ASM_COMPILER ${CMAKE_C_COMPILER})
set(CMAKE_CXX_LINK_EXECUTABLE ${CMAKE_C_COMPILER})
set(CMAKE_LINKER ${CMAKE_C_COMPILER})
set(CMAKE_STRIP "${HERCULES_PATH}/bin/armstrip")

#ENABLE_LANGUAGE(ASM)
set(CMAKE_AR "${HERCULES_PATH}/bin/armar") 

# skip compiler tests
set(CMAKE_ASM_COMPILER_WORKS 1) 
set(CMAKE_C_COMPILER_WORKS   1) 
set(CMAKE_CXX_COMPILER_WORKS 1) 
set(CMAKE_DETERMINE_ASM_ABI_COMPILED 1) 
set(CMAKE_DETERMINE_C_ABI_COMPILED   1) 
set(CMAKE_DETERMINE_CXX_ABI_COMPILED 1) 


# set target environment
set(CMAKE_FIND_ROOT_PATH ${HERCULES_PATH})


# Adjust the default behaviour of the FIND_XXX() commands:
# - search programs in the target environment
# - search headers and libraries in the target environment 
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
), it makes sense that the asm files are ignored.  I have a line with ENABLE_LANGUAGE(ASM), but it is commented out because it causes CMake to seg fault.  I also have a "SYSTEM" file I placed in share/cmake-2.8/Module/Platform (
Fullscreen 8713.Hercules_CCS.cmake.txt Download 
# This is a platform definition file for platforms without
# operating system, typically embedded platforms.
# It is used when CMAKE_SYSTEM_NAME is set to "Generic"
#
# It is intentionally empty, since nothing is known 
# about the platform. So everything has to be specified
# in the system/compiler files ${CMAKE_SYSTEM_NAME}-<compiler_basename>.cmake
# and/or ${CMAKE_SYSTEM_NAME}-<compiler_basename>-${CMAKE_SYSTEM_PROCESSOR}.cmake

# (embedded) targets without operating system usually don't support shared libraries
SET_PROPERTY(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS FALSE)

# To help the find_xxx() commands, set at least the following so CMAKE_FIND_ROOT_PATH
# works at least for some simple cases:
SET(CMAKE_SYSTEM_INCLUDE_PATH ${HERCULES_PATH}/include )
SET(CMAKE_SYSTEM_LIBRARY_PATH ${HERCULES_PATH}/lib )
SET(CMAKE_SYSTEM_PROGRAM_PATH ${HERCULES_PATH}/bin )
).

Any help would be appreciated to get the asm files compiling and the linker working.

Thanks,

Mike

  • TI__Guru**** 251120 points

    We at TI have no collateral related to cmake.  If you search cmake in the forums (use the box up and to the right), you can find other discussions about it that look useful.

    Thanks and regards,

    -George

  • in reply to George Mock
    Intellectual 550 points

    Update:

    I got through the first linker problem and can now create a lib file and am trying to link the library with sys_main.c to create the executable.  I don't know how to specify the linker command file and other linker options.  I still can't turn ASM with out cmake segfaulting.  Current toolchain file:  

    Fullscreen 6138.RM46_CCS.cmake.txt Download 
    set(CMAKE_SYSTEM_NAME Generic)

set(HERCULES_PATH "/opt/ti/ccsv5/tools/compiler/arm_5.0.4")

# specify the cross compiler
set(CMAKE_C_COMPILER   "${HERCULES_PATH}/bin/armcl")
set(CMAKE_CXX_COMPILER "${CMAKE_C_COMPILER}")
set(CMAKE_ASM_COMPILER "${CMAKE_C_COMPILER}")
#ENABLE_LANGUAGE(ASM)
#set(CMAKE_AR           "${HERCULES_PATH}/bin/armar") 

# skip compiler tests
set(CMAKE_ASM_COMPILER_WORKS 1) 
set(CMAKE_C_COMPILER_WORKS   1) 
set(CMAKE_CXX_COMPILER_WORKS 1) 
set(CMAKE_DETERMINE_ASM_ABI_COMPILED 1) 
set(CMAKE_DETERMINE_C_ABI_COMPILED   1) 
set(CMAKE_DETERMINE_CXX_ABI_COMPILED 1) 

# Add the default include and lib directories for tool chain
include_directories(${HERCULES_PATH}/include)
link_directories(${HERCULES_PATH}/lib)

# set target environment
set(CMAKE_FIND_ROOT_PATH ${HERCULES_PATH})


# Adjust the default behaviour of the FIND_XXX() commands:
# - search programs in the host environment
# - search headers and libraries in the target environment 
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
    .

    Still would appreciate any help!

    Mike