problem with gcc 14.2.0 targeting bfin-linux (FDPIC)

[Waldemar Brodkorb]

Hi,

I have a problem updating my toolchain for Blackfin Linux (FDPIC).
I use following toolchain components:
Binutils 2.44
GCC 14.2.0
uClibc-ng 1.0.51
Linux Headers 4.9.287

I have a Arcturus Board for testing.
The last working GCC is 9.5.0. Starting with 10.5.0 I get following
linking error:

/home/wbx/openadk/toolchain_arcturus-ucbf54x_uclibc-ng_bf548_fdpic_nommu/usr/bin/bfin-openadk-linux-uclibc-gcc  -Wl,-EL -Wl,-melf32bfinfd -shared -Wl,--warn-common -Wl,--warn-once -Wl,-z,combreloc -Wl,-O2 -Wl,-z,defs -L/home/wbx/openadk/target_arcturus-ucbf54x_uclibc-ng_bf548_fdpic_nommu/lib -L/home/wbx/openadk/target_arcturus-ucbf54x_uclibc-ng_bf548_fdpic_nommu/usr/lib -Wl,-O1 -Wl,-rpath -Wl,/usr/lib -Wl,-rpath-link -Wl,/home/wbx/openadk/target_arcturus-ucbf54x_uclibc-ng_bf548_fdpic_nommu/usr/lib -mcpu=bf548 -mfdpic -Wl,-e,__start -Wl,-z,now -Wl,-Bsymbolic -Wl,--export-dynamic -Wl,--sort-common -Wl,--no-undefined -Wl,--discard-locals -Wl,--discard-all  -Wl,-soname=ld-uClibc.so.1 -nostdlib -nostartfiles -o lib/ld-uClibc-1.0.51.so  -Wl,--whole-archive ldso/ldso/ld-uClibc_so.a -Wl,--no-whole-archive -shared  /home/wbx/openadk/toolchain_arcturus-ucbf54x_uclibc-ng_bf548_fdpic_nommu/usr/lib/gcc/bfin-openadk-linux-uclibc/14.2.0/libgcc.a  
/home/wbx/openadk/toolchain_arcturus-ucbf54x_uclibc-ng_bf548_fdpic_nommu/usr/lib/gcc/bfin-openadk-linux-uclibc/14.2.0/../../../../bfin-openadk-linux-uclibc/bin/ld: warning: _udivsi3.o: missing .note.GNU-stack section implies executable stack
/home/wbx/openadk/toolchain_arcturus-ucbf54x_uclibc-ng_bf548_fdpic_nommu/usr/lib/gcc/bfin-openadk-linux-uclibc/14.2.0/../../../../bfin-openadk-linux-uclibc/bin/ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
/home/wbx/openadk/toolchain_arcturus-ucbf54x_uclibc-ng_bf548_fdpic_nommu/usr/lib/gcc/bfin-openadk-linux-uclibc/14.2.0/../../../../bfin-openadk-linux-uclibc/bin/ld: ldso/ldso/ld-uClibc_so.a(ldso.oS): in function `_dl_find_hash':
ldso/ldso/ldso.c:(.text+0xe04): undefined reference to `memset'
/home/wbx/openadk/toolchain_arcturus-ucbf54x_uclibc-ng_bf548_fdpic_nommu/usr/lib/gcc/bfin-openadk-linux-uclibc/14.2.0/../../../../bfin-openadk-linux-uclibc/bin/ld: ldso/ldso/ld-uClibc_so.a(ldso.oS): in function `search_for_named_library':
ldso/ldso/ldso.c:(.text+0x265c): undefined reference to `memcpy'
collect2: error: ld returned 1 exit status
gmake[6]: *** [ldso/ldso/Makefile.in:90: lib/ld-uClibc.so] Error 1
gmake[5]: *** [Makefile:353: /home/wbx/openadk/toolchain_build_arcturus-ucbf54x_uclibc-ng_bf548_fdpic_nommu/w-uClibc-ng-1.0.51-1/uClibc-ng-1.0.51/.compiled] Error 2
gmake[4]: *** [Makefile:106: uclibc-ng-compile] Error 2
gmake[3]: *** [mk/build.mk:229: toolchain/final] Error 2
gmake[2]: *** [/home/wbx/openadk/mk/build.mk:174: world] Error 2

Any idea what goes wrong here? Do I need to modify uClibc-ng ldso code in some way?
Anybody remember what might be changed between gcc 9.5.0 and 10.5.0 which triggers this linking error?

Thanks in advance
 best regards
  Waldemar