[Xenomai] gcc error: posix.wrappers

[Xenomai] gcc error: posix.wrappers

[Franz Engel]

Hi,

I've a little problem. When I try to compile my code with my new system (xenomai 2.6.2.1) I get the following error:
gcc: error: ;-Wl,@/usr/xenomai/lib/posix.wrappers: No such file or directory

The
 file posix.wrappers exits in the /usr/xenomai/lib-directory. 
Futhermore, if move this file to anywhere else I get this message:
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so: undefined reference to `pthread_mutexattr_settype'
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so: undefined reference to `clock_gettime'
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so:
 undefined reference to `pthread_condattr_setpshared'
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so: undefined reference to
 `pthread_mutexattr_setprotocol'
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so: undefined reference to `shm_unlink'
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so: undefined reference to `pthread_kill'
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so:
 undefined reference to `pthread_mutexattr_setpshared'
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so: undefined reference to `mq_send'
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so: undefined reference to `mq_unlink'
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so: undefined reference to `pthread_join'
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so: undefined reference to `pthread_create'
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so: undefined reference
 to `pthread_mutexattr_init'
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so: undefined reference to `pthread_mutexattr_destroy'
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so: undefined reference to `mq_getattr'
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so: undefined reference to `shm_open'
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so: undefined reference to `mq_receive'
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so: undefined reference to `mq_close'
/home/profit/Work/Development/bv_ProFIT_guidePC_shared/bin/libkogmo_rtdb.so: undefined reference to `mq_open'
collect2: ld returned 1 exit status


Does
 somebody know what does it mean? Is it possible that the error refers 
to the commands inside the file and not to the file itself?

I use the following cmake
 commands:
cmake_minimum_required(VERSION 2.8)

##################################
# BEGIN OF EDITING THIS TEMPLATE #
##################################

############################################
# PLEASE ENTER HERE THE NAME OF YOUR PROJECT

set(ProjectName "kogmo_man")

PROJECT(${ProjectName})

###############################################
# ENTER HERE THE VERSION NUMBER OF YOUR PROJECT
set(${ProjectName}_VERSION_MAJOR 1)
set(${ProjectName}_VERSION_MINOR 0)

###############################################
# ENABLE OR DIABLE THE USE OF XENOMAI AND QT
option(USE_XENOMAI        "xenomai"    ON    )
option(USE_RTDB            "rtdb"        ON    )
option(USE_RTDB_DEBUG        "rtdb_debug"   
 OFF    )
option(USE_RTMALLOC_SUBA    "suba"        ON    )


#############################################
# NOW ADD ALL SOURCE FILES OF YOUR PROJECT
# IF YOU'RE USING QT, ALSO ADD ALL HEADERS OF 
# QT-OBJECTS, UI-FILES AND RESOURCES

#####################
# INCLUDE DIRECTORIES
set(MAIN_DIR ${PROJECT_SOURCE_DIR}/../..)
set(RTDB_INC ../include)

#############################################
# ENTER THE INSTALL DIRECTORY
set(INSTALLDIR ${MAIN_DIR}/bin)

include_directories(
    ${RTDB_INC}
)

###########
# LIBRARIES

set(EXTRA_LIBS 

)

######
# CPPs

set(SOURCES 
    main.c
)

###########
# Resources
set(RESOURCES 

)

##################################
#  END OF EDITING THIS TEMPLATE 
 #
##################################


message ("Usage of Xenomai:         ${USE_XENOMAI}")
message ("Usage of RTDB Debugger:    ${USE_RTDB_DEBUG}")
message ("Usage of RTDB:         ${USE_RTDB}")
message ("If there's something wrong with these values, run rm -r * in the build directory")

message(STATUS
 "Generating buid files for project ${ProjectName}, version 
${${ProjectName}_VERSION_MAJOR}.${${ProjectName}_VERSION_MINOR}")

include_directories(${INCLUDES})

IF(USE_XENOMAI)
    message(STATUS "Starting Xenomai configuration")
    
    set(XENOMAI_DIR "/usr/xenomai")
    set(XENOMAI_INCLUDE_DIR ${XENOMAI_DIR}/include)
    set(XENOMAI_INCLUDE_POSIX_DIR ${XENOMAI_DIR}/include/posix)

    execute_process(COMMAND
 "${XENOMAI_DIR}/bin/xeno-config" "--skin=posix" "--ldflags" OUTPUT_VARIABLE XENOMAI_EXE_LINKER_FLAGS)
    set(CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS} ${XENOMAI_EXE_LINKER_FLAGS})
    execute_process(COMMAND "${XENOMAI_DIR}/bin/xeno-config" "--skin=posix" "--cflags" OUTPUT_VARIABLE XENOMAI_DEFINITIONS)
    set(EXTRA_DEFINITIONS ${EXTRA_DEFINITIONS} ${XENOMAI_DEFINITIONS})
    ADD_DEFINITIONS(${EXTRA_DEFINITIONS})


    set(EXTRA_LIBS ${EXTRA_LIBS} rtdk)
    
    message(STATUS ${XENOMAI_EXE_LINKER_FLAGS})
    message(STATUS ${XENOMAI_DEFINITIONS})
    message(STATUS "Xenomai configuration finished")
ELSE(USE_XENOMAI)
    set(EXTRA_DEFINITIONS ${EXTRA_DEFINITIONS} "-O2 -fno-strict-aliasing -Wstrict-prototypes -O2 -g -Wall")
   
 set(EXTRA_DEFINITIONS ${EXTRA_DEFINITIONS} "-D_GNU_SOURCE -D_REENTRANT")
    find_library(THREAD_LIB pthread ../usr/lib)
    set(EXTRA_LIBS ${EXTRA_LIBS} ${THREAD_LIB})
    find_library(C_LIB c ../usr/lib)
    set(EXTRA_LIBS ${EXTRA_LIBS} ${C_LIB})
    find_library(RT_LIB rt ../usr/lib)
    set(EXTRA_LIBS ${EXTRA_LIBS} ${RT_LIB})
ENDIF(USE_XENOMAI)

IF (USE_RTDB)
    message(STATUS "startign RTDB configuration")
    set(KOGMO_DIR ../)
    find_library(KOGMO_LIBRARY_KOGMO_RTDB kogmo_rtdb ${KOGMO_DIR}../bin)
    set(EXTRA_LIBS ${EXTRA_LIBS} ${KOGMO_LIBRARY_KOGMO_RTDB})
    include_directories(${KOGMO_DIR}/include)
    include_directories(${KOGMO_DIR}/../bin)
    message(STATUS "RTDB configuration finished")
ENDIF
 (USE_RTDB)

IF(USE_RTDB_DEBUG)
    set(EXTRA_DEFINITIONS ${EXTRA_DEFINITIONS} "-DDEBUG=1023")
ENDIF(USE_RTDB_DEBUG)

IF(USE_RTMALLOC_SUBA)
    set(KOGMO_DEFINITIONS "-DRTMALLOC_suba")
    set(EXTRA_DEFINITIONS ${EXTRA_DEFINITIONS} ${KOGMO_DEFINITIONS})
ENDIF(USE_RTMALLOC_SUBA)


ADD_DEFINITIONS(${EXTRA_DEFINITIONS})

add_executable(${ProjectName} ${SOURCES})

TARGET_LINK_LIBRARIES(${ProjectName} ${EXTRA_LIBS})

install(TARGETS ${ProjectName} DESTINATION ${INSTALLDIR})


Thanks,
    Franz

Re: [Xenomai] gcc error: posix.wrappers

[Lennart Sorensen]

On Mon, Jun 03, 2013 at 05:50:40PM +0100, Franz Engel wrote:
> I've a little problem. When I try to compile my code with my new system (xenomai 2.6.2.1) I get the following error:
> gcc: error: ;-Wl,@/usr/xenomai/lib/posix.wrappers: No such file or directory

What is that ';' doing there?  That looks weird.  That would end one
command and make it seem the -Wl... is a command to try and execute,
which is unlikely to work.

The rest of your message is probably just symptoms of the above problem.

-- 
Len Sorensen

Re: [Xenomai] gcc error: posix.wrappers

[Gilles Chanteperdrix]

On 06/03/2013 06:50 PM, Franz Engel wrote:

> Hi,
> 
> I've a little problem. When I try to compile my code with my new system (xenomai 2.6.2.1) I get the following error:
> gcc: error: ;-Wl,@/usr/xenomai/lib/posix.wrappers: No such file or directory


If the build-tool you use supports pkg-config, you may find it easier to
use the .pc files installed by xenomai. The posix skin library "package
name" is libxenomai_posix (so the .pc file is called libxenomai_posix.pc).


-- 
                                                                Gilles.

Re: [Xenomai] gcc error: posix.wrappers

[Franz Engel]

>________________________________
> Von: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
>An: Franz Engel <franz_lambert_engel@yahoo.de> 
>CC: "xenomai@xenomai.org" <xenomai@xenomai.org> 
>Gesendet: 20:22 Montag, 3.Juni 2013
>Betreff: Re: [Xenomai] gcc error: posix.wrappers
> 
>
>On 06/03/2013 06:50 PM, Franz Engel wrote:
>
>> Hi,
>> 
>> I've a little problem. When I try to compile my code with my new system (xenomai 2.6.2.1) I get the following error:
>> gcc: error: ;-Wl,@/usr/xenomai/lib/posix.wrappers: No such file or directory
>
>
>If the build-tool you use supports pkg-config, you may find it easier to
>use the .pc files installed by xenomai. The posix skin library "package
>name" is libxenomai_posix (so the .pc file is called libxenomai_posix.pc).
>
>
>-- 
>                                                                Gilles.

I changed my cmake file to this:
IF(USE_XENOMAI)
    message(STATUS "Starting Xenomai configuration")
    
    find_package(PkgConfig)

    if(NOT DEFINED ENV{PKG_CONFIG_PATH})
        set(ENV{PKG_CONFIG_PATH} $ENV{PKG_CONFIG_PATH} "/usr/xenomai/lib/pkgconfig") 
    endif(NOT DEFINED ENV{PKG_CONFIG_PATH})
    
    pkg_search_module(XENOMAI REQUIRED libxenomai_posix)
    if (XENOMAI_FOUND)
        message(STATUS "Start der pkg Ergebnisse")
        message(STATUS ${XENOMAI_CFLAGS})
        set(EXTRA_DEFINITIONS ${EXTRA_DEFINITIONS} ${XENOMAI_CFLAGS})
        message(STATUS ${XENOMAI_LDFLAGS})
        set(CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS} ${XENOMAI_LDFLAGS})
        message(STATUS "Ende der pkg Ergebnisse")
        ADD_DEFINITIONS(${EXTRA_DEFINITIONS})
    endif (XENOMAI_FOUND)
    
    message(STATUS "Xenomai configuration finished")
ENDIF(USE_XENOMAI)

ADD_DEFINITIONS(${EXTRA_DEFINITIONS})
add_executable(${ProjectName} ${SOURCES})
TARGET_LINK_LIBRARIES(${ProjectName} ${EXTRA_LIBS})
install(TARGETS ${ProjectName} DESTINATION ${INSTALLDIR})

It looks like a better way then using the xeno-config file. But I have 
still the problem: gcc: error: 
;-Wl,@//usr/xenomai/lib/posix.wrappers;-L/usr/xenomai/lib;-lpthread_rt;-lxenomai;-lpthread;-lrt: No such file or directory
In anouther project I build a .so. That works without any problem. I just use this lines instead of the last four lines of my example above:


ADD_DEFINITIONS(${EXTRA_DEFINITIONS})
add_library(${ProjectName} SHARED ${SOURCES})
TARGET_LINK_LIBRARIES(${ProjectName} ${EXTRA_LIBS})
install(TARGETS ${ProjectName} DESTINATION ${INSTALLDIR})


Any Idea?

Re: [Xenomai] gcc error: posix.wrappers

[Franz Engel]

----- Ursprüngliche Message -----
> Von: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
> An: Franz Engel <franz_lambert_engel@yahoo.de>
> CC: "xenomai@xenomai.org" <xenomai@xenomai.org>
> Gesendet: 20:20 Montag, 3.Juni 2013
> Betreff: Re: [Xenomai] gcc error: posix.wrappers
> 
> On Mon, Jun 03, 2013 at 05:50:40PM +0100, Franz Engel wrote:
>>  I've a little problem. When I try to compile my code with my new system 
> (xenomai 2.6.2.1) I get the following error:
>>  gcc: error: ;-Wl,@/usr/xenomai/lib/posix.wrappers: No such file or 
> directory
> 
> What is that ';' doing there?  That looks weird.  That would end one
> command and make it seem the -Wl... is a command to try and execute,
> which is unlikely to work.
> 
> The rest of your message is probably just symptoms of the above problem.
> 
> -- 
> Len Sorensen
>

I have no idee where the ";" is coming from. When I print my ldflags I get use this: -Wl,@//usr/xenomai/lib/posix.wrappers-L/usr/xenomai/lib-lpthread_rt-lxenomai-lpthread-lrt

The ";" must be set by the compiler.

Re: [Xenomai] gcc error: posix.wrappers

[Franz Engel]

----- Ursprüngliche Message -----

> Von: Franz Engel <franz_lambert_engel@yahoo.de>
> An: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
> CC: "xenomai@xenomai.org" <xenomai@xenomai.org>
> Gesendet: 9:37 Dienstag, 4.Juni 2013
> Betreff: Re: [Xenomai] gcc error: posix.wrappers
> 
>> ________________________________
>>  Von: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
>> An: Franz Engel <franz_lambert_engel@yahoo.de> 
>> CC: "xenomai@xenomai.org" <xenomai@xenomai.org> 
>> Gesendet: 20:22 Montag, 3.Juni 2013
>> Betreff: Re: [Xenomai] gcc error: posix.wrappers
>> 
>> 
>> On 06/03/2013 06:50 PM, Franz Engel wrote:
>> 
>>>  Hi,
>>> 
>>>  I've a little problem. When I try to compile my code with my new 
> system (xenomai 2.6.2.1) I get the following error:
>>>  gcc: error: ;-Wl,@/usr/xenomai/lib/posix.wrappers: No such file or 
> directory
>> 
>> 
>> If the build-tool you use supports pkg-config, you may find it easier to
>> use the .pc files installed by xenomai. The posix skin library "package
>> name" is libxenomai_posix (so the .pc file is called 
> libxenomai_posix.pc).
>> 
>> 
>> -- 
>>                                                                 Gilles.
> 
> I changed my cmake file to this:
> IF(USE_XENOMAI)
>     message(STATUS "Starting Xenomai configuration")
>     
>     find_package(PkgConfig)
> 
>     if(NOT DEFINED ENV{PKG_CONFIG_PATH})
>         set(ENV{PKG_CONFIG_PATH} $ENV{PKG_CONFIG_PATH} 
> "/usr/xenomai/lib/pkgconfig") 
>     endif(NOT DEFINED ENV{PKG_CONFIG_PATH})
>     
>     pkg_search_module(XENOMAI REQUIRED libxenomai_posix)
>     if (XENOMAI_FOUND)
>         message(STATUS "Start der pkg Ergebnisse")
>         message(STATUS ${XENOMAI_CFLAGS})
>         set(EXTRA_DEFINITIONS ${EXTRA_DEFINITIONS} ${XENOMAI_CFLAGS})
>         message(STATUS ${XENOMAI_LDFLAGS})
>         set(CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS} ${XENOMAI_LDFLAGS})
>         message(STATUS "Ende der pkg Ergebnisse")
>         ADD_DEFINITIONS(${EXTRA_DEFINITIONS})
>     endif (XENOMAI_FOUND)
>     
>     message(STATUS "Xenomai configuration finished")
> ENDIF(USE_XENOMAI)
> 
> ADD_DEFINITIONS(${EXTRA_DEFINITIONS})
> add_executable(${ProjectName} ${SOURCES})
> TARGET_LINK_LIBRARIES(${ProjectName} ${EXTRA_LIBS})
> install(TARGETS ${ProjectName} DESTINATION ${INSTALLDIR})
> 
> It looks like a better way then using the xeno-config file. But I have 
> still the problem: gcc: error: 
> ;-Wl,@//usr/xenomai/lib/posix.wrappers;-L/usr/xenomai/lib;-lpthread_rt;-lxenomai;-lpthread;-lrt: 
> No such file or directory
> In anouther project I build a .so. That works without any problem. I just use 
> this lines instead of the last four lines of my example above:
> 
> 
> ADD_DEFINITIONS(${EXTRA_DEFINITIONS})
> add_library(${ProjectName} SHARED ${SOURCES})
> TARGET_LINK_LIBRARIES(${ProjectName} ${EXTRA_LIBS})
> install(TARGETS ${ProjectName} DESTINATION ${INSTALLDIR})
> 
> 
> Any Idea?
>

O.k. I solved my problem. If I set the XENOMAI_LDFLAGS to the CMAKE_EXE_LINKER_FLAGS it doesn't work. But if I set it direct to the EXTRA_LIBS and link them with TARGET_LINK_LIBRARIES(${ProjectName} ${EXTRA_LIBS}) it works perfect.

Re: [Xenomai] gcc error: posix.wrappers

[Lennart Sorensen]

On Tue, Jun 04, 2013 at 08:37:19AM +0100, Franz Engel wrote:
> I changed my cmake file to this:
> IF(USE_XENOMAI)
>     message(STATUS "Starting Xenomai configuration")
>     
>     find_package(PkgConfig)
> 
>     if(NOT DEFINED ENV{PKG_CONFIG_PATH})
>         set(ENV{PKG_CONFIG_PATH} $ENV{PKG_CONFIG_PATH} "/usr/xenomai/lib/pkgconfig") 
>     endif(NOT DEFINED ENV{PKG_CONFIG_PATH})
>     
>     pkg_search_module(XENOMAI REQUIRED libxenomai_posix)
>     if (XENOMAI_FOUND)
>         message(STATUS "Start der pkg Ergebnisse")
>         message(STATUS ${XENOMAI_CFLAGS})
>         set(EXTRA_DEFINITIONS ${EXTRA_DEFINITIONS} ${XENOMAI_CFLAGS})
>         message(STATUS ${XENOMAI_LDFLAGS})
>         set(CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS} ${XENOMAI_LDFLAGS})
>         message(STATUS "Ende der pkg Ergebnisse")
>         ADD_DEFINITIONS(${EXTRA_DEFINITIONS})
>     endif (XENOMAI_FOUND)
>     
>     message(STATUS "Xenomai configuration finished")
> ENDIF(USE_XENOMAI)
> 
> ADD_DEFINITIONS(${EXTRA_DEFINITIONS})
> add_executable(${ProjectName} ${SOURCES})
> TARGET_LINK_LIBRARIES(${ProjectName} ${EXTRA_LIBS})
> install(TARGETS ${ProjectName} DESTINATION ${INSTALLDIR})
> 
> It looks like a better way then using the xeno-config file. But I have 
> still the problem: gcc: error: 
> ;-Wl,@//usr/xenomai/lib/posix.wrappers;-L/usr/xenomai/lib;-lpthread_rt;-lxenomai;-lpthread;-lrt: No such file or directory
> In anouther project I build a .so. That works without any problem. I just use this lines instead of the last four lines of my example above:

Clearly something is using ';' as a delimiter where you don't want one.

I wasn't even aware xenomai used cmake.  I just assumed it had plain
old simple to understand makefiles.  I guess if I ever had a need to
poke at how it builds I would know.  Or are these makefiles for your
own project that uses xenomai?

I would think it is your EXTRA_LIBS that is wrong.

-- 
Len Sorensen