Coldfire uC5282 Question

Chris Johns chrisj at
Tue Mar 30 23:01:43 UTC 2010

On 3/31/2010 9:26 AM, Joel Sherrill wrote:
> Thanks for all the help. I have tracked it down to memset()
> which is definitely in assembly in newlib 1.18.0. Hmmm...
> This output from the -v on the link doesn't look like it used
> the right multilib:
> /users/joel/test-gcc/b-gcc1-m68k/gcc/testsuite/gcc/' '-v'
> /users/joel/test-gcc/b-gcc1-m68k/gcc/collect-ld -dc -dp -N -o
> /users/joel/test-gcc/b-gcc1-m68k/gcc/testsuite/gcc/zero-struct-2.x7
> /users/joel/test-gcc/install-svn/m68k-rtems4.10/uC5282/lib/start.o
> /users/joel/test-gcc/b-gcc1-m68k/gcc/m5208/crti.o
> /users/joel/test-gcc/b-gcc1-m68k/gcc/m5208/crtbegin.o -e start
> -L/users/joel/test-gcc/b-gcc1-m68k/m68k-rtems4.10/./newlib

This path looks wrong. The directory above this path is:

$ ls
libgcc  libssp  libstdc++-v3  m5206  m5208  m5307  m5329  m5407  m5475 
m68000  m68040  m68060  mcpu32  newlib  softfp


$ ls m5208
libgcc  libssp  libstdc++-v3  newlib

I have never seen a newlib directory before. Has an extra newlib been 
added to the path in 4.5 ?

If the extra path has been added, then:


is the default path with no -mcpu= on the command line, ie 68020 code, 
so the linker command line is wrong, or the changed path is wrong or 
effects the library selection.

> -L/users/joel/test-gcc/b-gcc1-m68k/gcc/m5208
> -L/users/joel/test-gcc/b-gcc1-m68k/gcc
> -L/users/joel/test-gcc/install-svn/m68k-rtems4.10/uC5282/lib
> -L/users/joel/test-gcc/b-gcc1-m68k/m68k-rtems4.10/./newlib
> /tmp/ccBTk1gL.wpa.ltrans.o gcc_tg.o
> /users/joel/test-gcc/b-gcc1-m68k/rtems_gcc_main.o -wrap exit -wrap _exit
> -wrap main -wrap abort -lm -lgcc --start-group -lrtemsbsp -lrtemscpu -lc
> -lgcc --end-group -T
> /users/joel/test-gcc/install-svn/m68k-rtems4.10/uC5282/lib/linkcmds
> -lgcc /users/joel/test-gcc/b-gcc1-m68k/gcc/m5208/crtend.o
> /users/joel/test-gcc/b-gcc1-m68k/gcc/m5208/crtn.o
> -mcpu=5282

Is this -mcpu option on the linker command line or has it been added to 
the command line ?


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