How linking is done from command line?..

[ajays]

hello,

 I am a new user of codewarrior. I am using Codewarrior v6.4 for Coldfire.Target is MCF5282. I need to to know what all steps are involved in doing linking from command line. What all environment variables need to be set? Which runtime libraries need to be added?

I have set the Env var MWCLibraries. What to add in MWLibraryFiles?

  I have tried to use:

       mwldmcf -g -map -proc  MCF5282 main.o E68k_startup.o C_4i_CF_Runtime.a C_TRK_4i_CF_SZ_MSL.a M52282 fp_coldfire.o M5282EVB_EXT_ROM.lcf M5282EVB_INT_ROM.lcf M5282EVB_RAM.lcf

But its giving Illegal 16-bit absolute adddress reference to symbol errors.

Please Help.

[CrasyCat]

Hello

Did you check the sample project {Install}\(CodeWarrior_Examples)\CmdlineTools.

The .bat files there should contain all the environment variable configuration you need.

CrasyCat

[ajays]

hi CrasyCat,

 Thanks for the quick reply. But I am using an evaluation version.I cannot find batch files here.

This is the procedure i followed. Please tell me if anything else is needed.

1) I have opened a sample project for MCF522111. Built it and executed succesfully on IDE.

2) I have compiled the sample main.c from command line to generate main.o with options:

    mwccmcf -c -v main.c    (is this enough?)

3)  I am using only the default ".LCF" file given in project directory.

I have used the following in command line:

mwldmcf -nodefaults  -g -proc MCF5221x –map “C:\Program Files\Freescale\CodeWarriorV6.4\(CodeWarrior_Examples)\new\sources\M52211EVB_CONSOLE.lcf" main.o E68k_Startup.o mcf52211_startup.o -L"C:\Program Files\Freescale\CodeWarriorV6.4\E68K_SUPPORT\Libraries"

-L"C:\Program Files\Freescale\CodeWarriorV6.4\E68K_SUPPORT\Runtime"

-L"C:\Program Files\Freescale\CodeWarriorV6.4\E68K_SUPPORT\msl\MSL_C\MSL_E68k\Lib"              -lfp_coldfire.o -lC_4i_CF_Runtime.a -lC_4i_CF_MSL.a

But i am getting errors like:

mwldmcf: between 0x00000000 and 0x00007FFF or 0xFFFF8000 and 0xFFFFFFFF in memory

mwldmcf: Illegal 16-bit absolute address reference to symbol '__START_SBSS'

mwldmcf: between 0x00000000 and 0x00007FFF or 0xFFFF8000 and 0xFFFFFFFF in memory

mwldmcf: Illegal 16-bit absolute address reference to symbol '__END_SBSS'

mwldmcf: between 0x00000000 and 0x00007FFF or 0xFFFF8000 and 0xFFFFFFFF in memory

mwldmcf: Illegal 16-bit absolute address reference to symbol '__START_BSS'

mwldmcf: between 0x00000000 and 0x00007FFF or 0xFFFF8000 and 0xFFFFFFFF in memory

mwldmcf: Illegal 16-bit absolute address reference to symbol '__START_BSS'

Please help.

[CrasyCat]

Hello

It looks like you have a problem with your .lcf file and that you are trying to place sections .sbss and bss outside of the recommended address range.

I do not have a V6.4 installed here, so I would recommend you to submit a service request around that to get one of our support engineer looking at that.

To log the issue please go to following URL:
http://www.freescale.com/TechSupport
and click on "Submit a service request"

CrasyCat