CCS/PROCESSOR-SDK-AM335X: Add cross compiling flag with

Davide Brunelli

Tool/software: Code Composer Studio

Goodmorning,

I'm using a Beaglebone black and currently I can cross compile and directly execute an application, which uses Xenomai, using CCS and creating the project type "Makefile project with Existing Code". I used the following Makefile where the application name is: cyclic_test.

MAIN_SRC    = cyclic_test
TARGET        = cyclic_test

SKIN         := alchemy
CFLAGS         := $(shell /usr/xenomai/bin/xeno-config --skin=$(SKIN) --cflags)
LDFLAGS     := $(shell /usr/xenomai/bin/xeno-config --skin=$(SKIN) --ldflags)
#CC             := $(shell /usr/xenomai/bin/xeno-config --cc)
CC            := /home/davide/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gcc

all: $(TARGET)

$(TARGET):$(MAIN_SRC).c
        $(CC) -o $@ $< $(CFLAGS) $(LDFLAGS)

clean:
        @rm $(MAIN_SRC)

Now I would like to use in CCS, the standard project type "C Project". As you can see, the Makefile use a script "xeno-config" to generate the several settings and flags. Is it possible to do this kind of settings here?

Thank you.

Best Regards,

Davide Brunelli

over 6 years ago

0 desouza over 6 years ago

TI__Guru**** 171309 points

Davide,

The screenshot did not go through, but you can use the Pre and Post build steps to execute scripts that may fulfill part of this functionality. Keep in mind that the managed project in Eclipse/CCS comes with its own build flags set via the interface, therefore you need to be careful in verifying any potential clashes.

Check section 6.1.3.4 of the CCS User's Guide at:

https://software-dl.ti.com/ccs/esd/documents/users_guide/index.html

And the Eclipse help at:

https://help.eclipse.org/photon/index.jsp?topic=%2Forg.eclipse.cdt.doc.user%2Freference%2Fcdt_u_prop_build_settings_steps.htm

Hope this helps,

Rafael

0 Davide Brunelli over 6 years ago in reply to desouza

Intellectual 980 points

Hello desouza,

thank you for your answer, I studied the documentation that you provided me. Actually before receiving your message, searching in the net for modifing the generated Makefile, I found that many people modify the compiling and linker settings.

First I defined two Build Variables in C/C++ Build -> Build Variables:

CFLAGS = $(shell /usr/xenomai/bin/xeno-config --skin=alchemy --cflags)

LDFLAGS = $(shell /usr/xenomai/bin/xeno-config --skin=alchemy --ldflags)

Then I modify the Command line pattern in C/C++ Build -> Settings -> Tool Settings -> Cross GCC Compiler as:

${COMMAND} ${OUTPUT_FLAG} ${OUTPUT_PREFIX}${OUTPUT} ${INPUTS} ${CFLAGS} ${LDFLAGS}

At last I modified the Command line pattern in C/C++ Build -> Settings -> Tool Settings ->Cross GCC Linker as:

${COMMAND} ${OUTPUT_FLAG} ${OUTPUT_PREFIX}${OUTPUT} ${INPUTS} ${CFLAGS} ${LDFLAGS}

As a result, I obtain the following:

09:03:58 **** Build of configuration Release for project XenomaiTest ****
make all 
Building file: ../cyclic_test.c
Invoking: Cross GCC Compiler
arm-linux-gnueabihf-gcc -o "cyclic_test.o" "../cyclic_test.c" -I/usr/xenomai/include/cobalt -I/usr/xenomai/include -march=armv7-a -mfpu=vfp3 -D_GNU_SOURCE -D_REENTRANT -fasynchronous-unwind-tables -D__COBALT__ -I/usr/xenomai/include/alchemy -Wl,--no-as-needed -Wl,@/usr/xenomai/lib/modechk.wrappers -lalchemy -lcopperplate /usr/xenomai/lib/xenomai/bootstrap.o -Wl,--wrap=main -Wl,--dynamic-list=/usr/xenomai/lib/dynlist.ld -L/usr/xenomai/lib -lcobalt -lmodechk -lpthread -lrt -march=armv7-a -mfpu=vfp3  
Finished building: ../cyclic_test.c
 
Building target: XenomaiTest
Invoking: Cross GCC Linker
arm-linux-gnueabihf-gcc -o "XenomaiTest"  ./cyclic_test.o    -Wl,--no-as-needed -Wl,@/usr/xenomai/lib/modechk.wrappers -lalchemy -lcopperplate /usr/xenomai/lib/xenomai/bootstrap.o -Wl,--wrap=main -Wl,--dynamic-list=/usr/xenomai/lib/dynlist.ld -L/usr/xenomai/lib -lcobalt -lmodechk -lpthread -lrt -march=armv7-a -mfpu=vfp3  
/opt/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/8.3.0/../../../../arm-linux-gnueabihf/bin/ld: ./cyclic_test.o: in function `_fini':
/tmp/dgboter/bbs/rhev-vm8--rhe6x86_64/buildbot/rhe6x86_64--arm-linux-gnueabihf/build/src/glibc/csu/../sysdeps/arm/crti.S:97: multiple definition of `_fini'; /opt/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/../arm-linux-gnueabihf/libc/usr/lib/crti.o:/tmp/dgboter/bbs/rhev-vm8--rhe6x86_64/buildbot/rhe6x86_64--arm-linux-gnueabihf/build/src/glibc/csu/../sysdeps/arm/crti.S:97: first defined here
/opt/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/8.3.0/../../../../arm-linux-gnueabihf/bin/ld: ./cyclic_test.o: in function `__data_start':
:(.data+0x0): multiple definition of `__data_start'; /opt/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/../arm-linux-gnueabihf/libc/usr/lib/crt1.o:static-reloc.c:(.data+0x0): first defined here
/opt/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/8.3.0/../../../../arm-linux-gnueabihf/bin/ld: ./cyclic_test.o: in function `__data_start':
makefile:35: recipe for target 'XenomaiTest' failed
:(.data+0x4): multiple definition of `__dso_handle'; /opt/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/8.3.0/crtbegin.o:(.data+0x0): first defined here
/opt/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/8.3.0/../../../../arm-linux-gnueabihf/bin/ld: ./cyclic_test.o:/tmp/dgboter/bbs/rhev-vm8--rhe6x86_64/buildbot/rhe6x86_64--arm-linux-gnueabihf/build/src/glibc/csu/init.c:23: multiple definition of `_IO_stdin_used'; /opt/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/../arm-linux-gnueabihf/libc/usr/lib/crt1.o:/tmp/dgboter/bbs/rhev-vm8--rhe6x86_64/buildbot/rhe6x86_64--arm-linux-gnueabihf/build/src/glibc/csu/init.c:23: first defined here
/opt/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/8.3.0/../../../../arm-linux-gnueabihf/bin/ld: ./cyclic_test.o: in function `_start':
/tmp/dgboter/bbs/rhev-vm8--rhe6x86_64/buildbot/rhe6x86_64--arm-linux-gnueabihf/build/src/glibc/csu/../sysdeps/arm/start.S:79: multiple definition of `_start'; /opt/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/../arm-linux-gnueabihf/libc/usr/lib/crt1.o:/tmp/dgboter/bbs/rhev-vm8--rhe6x86_64/buildbot/rhe6x86_64--arm-linux-gnueabihf/build/src/glibc/csu/../sysdeps/arm/start.S:79: first defined here
/opt/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/8.3.0/../../../../arm-linux-gnueabihf/bin/ld: /usr/xenomai/lib/xenomai/bootstrap.o: in function `__wrap_main':
bootstrap.c:(.text+0x0): multiple definition of `xenomai_main'; ./cyclic_test.o::(.text+0x358): first defined here
/opt/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/8.3.0/../../../../arm-linux-gnueabihf/bin/ld: /usr/xenomai/lib/xenomai/bootstrap.o:(.rodata+0x0): multiple definition of `xenomai_auto_bootstrap'; ./cyclic_test.o:(.rodata+0x78): first defined here
/opt/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/8.3.0/../../../../arm-linux-gnueabihf/bin/ld: /opt/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/8.3.0/crtend.o:(.tm_clone_table+0x0): multiple definition of `__TMC_END__'; ./cyclic_test.o::(.data+0x8): first defined here
collect2: error: ld returned 1 exit status
make: *** [XenomaiTest] Error 1

As you can see, the compiling phase is correctly carried out nad generate the object files. The problem is with the linker phase. Have you got any ideas?

Thank you.

Regards,

Davide Brunelli

0 Davide Brunelli over 6 years ago in reply to Davide Brunelli

Intellectual 980 points

I resolved the issue with the following:

Replace "Cross GCC Compiler" with : ${COMMAND} ${FLAGS} ${CFLAGS} -c ${INPUTS} ${OUTPUT_FLAG} ${OUTPUT_PREFIX} ${OUTPUT}

and replace "Cross GCC Linker" with : ${COMMAND} ${FLAGS} ${OUTPUT_FLAG} ${OUTPUT_PREFIX} ${OUTPUT} ${INPUTS} ${LDFLAGS},

where CFLAGS and LDFLAGS are the same as the ones indicated above.

The final result is:

15:37:47 **** Clean-only build of configuration Release for project XenomaiTest2 ****
make clean 
rm -rf  ./cyclic_test.o  ./cyclic_test.d  XenomaiTest2
 

15:37:47 Build Finished (took 565ms)

15:37:47 **** Incremental Build of configuration Release for project XenomaiTest2 ****
make all 
Building file: ../cyclic_test.c
Invoking: Cross GCC Compiler
arm-linux-gnueabihf-gcc -O3 -g -Wall -MMD -MP -MF"cyclic_test.d" -MT"cyclic_test.o" -I/usr/xenomai/include/cobalt -I/usr/xenomai/include -march=armv7-a -mfpu=vfp3 -D_GNU_SOURCE -D_REENTRANT -fasynchronous-unwind-tables -D__COBALT__ -I/usr/xenomai/include/alchemy -c "../cyclic_test.c" -o  "cyclic_test.o"
../cyclic_test.c: In function ‘loop_task_proc’:
../cyclic_test.c:35:17: warning: unused variable ‘now’ [-Wunused-variable]
   RTIME tstart, now;
                 ^~~
../cyclic_test.c:33:7: warning: unused variable ‘iret’ [-Wunused-variable]
   int iret = 0;
       ^~~~
Finished building: ../cyclic_test.c
 
Building target: XenomaiTest2
Invoking: Cross GCC Linker
arm-linux-gnueabihf-gcc  -o  "XenomaiTest2"  ./cyclic_test.o    -Wl,--no-as-needed -Wl,@/usr/xenomai/lib/modechk.wrappers -lalchemy -lcopperplate /usr/xenomai/lib/xenomai/bootstrap.o -Wl,--wrap=main -Wl,--dynamic-list=/usr/xenomai/lib/dynlist.ld -L/usr/xenomai/lib -lcobalt -lmodechk -lpthread -lrt -march=armv7-a -mfpu=vfp3  
Finished building target: XenomaiTest2
 

15:37:48 Build Finished (took 663ms)

0 desouza over 6 years ago in reply to Davide Brunelli

TI__Guru**** 171309 points

Davide,

Thanks for sharing your solution. That will surely help others in the future.

Regards,

Rafael

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CCS/PROCESSOR-SDK-AM335X: Add cross compiling flag with