Hi,

I get a compile/linking error with gcc 7.1 when targeting qemu system
sparc64.

+ objects='arch/sparc/kernel/head_64.o  init/built-in.o
--start-group  usr/built-in.o  arch/sparc/built-in.o
kernel/built-in.o  certs/built-in.o  mm/built-in.o  fs/built-in.o
ipc/built-in.o  security/built-in.o  crypto/built-in.o
block/built-in.o  lib/lib.a  arch/sparc/prom/lib.a
arch/sparc/lib/lib.a  lib/built-in.o  arch/sparc/prom/built-in.o
arch/sparc/lib/built-in.o  drivers/built-in.o  sound/built-in.o
firmware/built-in.o  net/built-in.o  virt/built-in.o
--end-group           '
+
/home/wbx/openadk/toolchain_qemu-sparc64_glibc_v9/usr/bin/sparc64-openadk-linux-gnu-ld
-m elf64_sparc --build-id -o vmlinux -T
./arch/sparc/kernel/vmlinux.lds arch/sparc/kernel/head_64.o
init/built-in.o --start-group usr/built-in.o arch/sparc/built-in.o
kernel/built-in.o certs/built-in.o mm/built-in.o fs/built-in.o
ipc/built-in.o security/built-in.o crypto/built-in.o
block/built-in.o lib/lib.a arch/sparc/prom/lib.a
arch/sparc/lib/lib.a lib/built-in.o arch/sparc/prom/built-in.o
arch/sparc/lib/built-in.o drivers/built-in.o sound/built-in.o
firmware/built-in.o net/built-in.o virt/built-in.o --end-group
ipc/built-in.o: In function `mq_attr_ok':
mqueue.c:(.text+0x6154): undefined reference to `__multi3'

I tried with Linux 4.11.3, Linus master and David Miller's SPARC
tree from today with the same result. The failing config is attached.

Any ideas?

best regards
 Waldemar