[CRIU] [PATCH] zdtm: fix building uptime_grow.c on s390

[Adrian Reber]

On Wed, Jul 19, 2017 at 07:04:16PM +0200, Michael Holzheu wrote:
> Am Wed, 19 Jul 2017 13:40:36 +0000
> schrieb Adrian Reber <adrian at lisas.de>:
> 
> > From: Adrian Reber <areber at redhat.com>
> > 
> > Building the uptime_grow test case fails on s390 with:
> > 
> > uptime_grow.o: In function `main':
> > /tmp/2/criu/test/zdtm/static/uptime_grow.c:36: undefined reference to `__floatdidf'
> > /tmp/2/criu/test/zdtm/static/uptime_grow.c:36: undefined reference to `__muldf3'
> > /tmp/2/criu/test/zdtm/static/uptime_grow.c:36: undefined reference to `__floatdidf'
> > /tmp/2/criu/test/zdtm/static/uptime_grow.c:36: undefined reference to `__adddf3'
> 
> These look like soft-float symbols. Normally you should not need to
> include <math.h> in this case.
> 
> Could you please send the V=1 compile output?

gcc -O2 -g  -Wall -Wformat-security -Werror -DCONFIG_S390 -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -DCONFIG_HAS_SELINUX -iquote include/ -DCONFIG_HAS_SELINUX -msoft-float -fno-optimize-sibling-calls -g -O2 -Wall -Werror -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0  -D_GNU_SOURCE -I../lib -iquote ../lib/arch/s390/include  -c -MM -MP -o uptime_grow.d uptime_grow.c
gcc -O2 -g  -Wall -Wformat-security -Werror -DCONFIG_S390 -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -DCONFIG_HAS_SELINUX -iquote include/ -DCONFIG_HAS_SELINUX -msoft-float -fno-optimize-sibling-calls -g -O2 -Wall -Werror -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0  -D_GNU_SOURCE -I../lib -iquote ../lib/arch/s390/include  -c -o uptime_grow.o uptime_grow.c
gcc  uptime_grow.o ../lib/libzdtmtst.a ../lib/libzdtmtst.a -lrt -pthread -o uptime_grow
uptime_grow.o: In function `main':
/tmp/2/criu/test/zdtm/static/uptime_grow.c:36: undefined reference to `__floatdidf'
/tmp/2/criu/test/zdtm/static/uptime_grow.c:36: undefined reference to `__muldf3'
/tmp/2/criu/test/zdtm/static/uptime_grow.c:36: undefined reference to `__floatdidf'
/tmp/2/criu/test/zdtm/static/uptime_grow.c:36: undefined reference to `__adddf3'
collect2: error: ld returned 1 exit status
make[2]: *** [uptime_grow] Error 1

		Adrian