Undefined symbols at run time for gcc-2.95.3

David Korn dkorn@pixelpower.com
Wed Oct 31 07:47:00 GMT 2001


   Oh, by the way:

>-----Original Message-----
>From: Ernest L. Williams Jr. [ mailto:snsernesto@home.com ]
>Sent: 31 October 2001 04:59

>Hi Dave,
>
>I do have a -nostdlib in build.log file:

>Testing libgcc1.  Ignore linker warning messages.
>/usr/local/obj/gcc2.95.3-ppc/gcc/xgcc 
>-B/usr/local/obj/gcc2.95.3-ppc/gcc/
>-B/usr/local/crossgcc-2.95.3/ppc/powerpc-wrs-vxworks/bin/
>-I/usr/local/crossgcc-2.95.3/ppc/powerpc-wrs-vxworks/include 
>-DCROSS_COMPILE -DIN_GCC -DHAIFA    -g -O2 -I./include  
>libgcc1-test.o -o libgcc1-test \
>  -nostartfiles -nostdlib `/usr/local/obj/gcc2.95.3-ppc/gcc/xgcc
>-B/usr/local/obj/gcc2.95.3-ppc/gcc/
>-B/usr/local/crossgcc-2.95.3/ppc/powerpc-wrs-vxworks/bin/
>-I/usr/local/crossgcc-2.95.3/ppc/powerpc-wrs-vxworks/include
>--print-libgcc-file-name`


  That's ok: nostdlib is being used during the build of libgcc.a; since
libgcc.a does not yet exist it should not be linked with the files that
are being used to produce libgcc.a!  What I meant was, do you have -nostdlib
in the flags of the files you compile that produce these missing symbols:

>> >--------------------------------------------------------------
>> >Undefined symbol: __start_cp_handler (binding 1 type 0)
>> >Undefined symbol: __eh_rtime_match (binding 1 type 0)
>> >Undefined symbol: __eh_alloc (binding 1 type 0)
>> >value =3D 28671088 =3D 0x1b57c70
>> >---------------------------------------------------------------

  - these errors were from trying to build *with* the compiler, rather than
when trying to build the compiler itself, weren't they ?   And these are
the ones I hope will be solved by using the g++ driver rather than the gcc
one.  Please correct me if I misunderstood....

       DaveK
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