Re: [LTP] compile fails for libcpuset.c on SLES-11 s390x with ltp-full-20090930

[Cyril Hrubis <chrubis@suse.cz>]

Hi!
> > make[5]: Entering directory
> > `/root/ltp-full-20090930/testcases/kernel/controllers/cpuset/cpuset_lib'
> > gcc -g -O2 -Wall -g -Wextra -I../../../../include -c -o cpuinfo.o cpuinfo.c
> > gcc -g -O2 -Wall -g -Wextra -I../../../../include -c -o libbitmask.o
> > libbitmask.c
> > gcc -g -O2 -Wall -g -Wextra -I../../../../include -c -o libcpuset.o
> > libcpuset.c
> > libcpuset.c: In function ?get_mempolicy?:
> > libcpuset.c:3092: error: ?__NR_get_mempolicy? undeclared (first use in this
> > function)
> > libcpuset.c:3092: error: (Each undeclared identifier is reported only once
> > libcpuset.c:3092: error: for each function it appears in.)
> > libcpuset.c: In function ?set_mempolicy?:
> > libcpuset.c:3097: error: ?__NR_set_mempolicy? undeclared (first use in this
> > function)
> > make[5]: *** [libcpuset.o] Error 1
> > make[5]: Leaving directory
> > `/root/ltp-full-20090930/testcases/kernel/controllers/cpuset/cpuset_lib'
> > make[4]: *** [all] Error 2
> > make[4]: Leaving directory
> > `/root/ltp-full-20090930/testcases/kernel/controllers/cpuset'
> > make[3]: *** [all] Error 2
> > make[3]: Leaving directory
> > `/root/ltp-full-20090930/testcases/kernel/controllers'
> > make[2]: *** [all] Error 2
> > make[2]: Leaving directory `/root/ltp-full-20090930/testcases/kernel'
> > make[1]: *** [all] Error 2
> > make[1]: Leaving directory `/root/ltp-full-20090930/testcases'
> > make: *** [all] Error 2
> >
> > As far as I can tell the architecture does not support get_mempolicy and
> > set_mem_policy.
> >
> > Here are the configure logs and stuff from the build attempt:
> > (See attached file: ltp-full-20090930-s390x-builderr.tar.gz)
> 
> The constant is defined for the platform, but not with the correct name:
> 
> /usr/src/linux/arch/s390/kernel/syscalls.S:NI_SYSCALL
>                                  /* 269 sys_get_mempolicy */
> /usr/src/linux/arch/s390/include/asm/unistd.h:/* Number 269 is
> reserved for new sys_get_mempolicy */
> /usr/src/linux/arch/s390/include/asm/unistd.h:#define __IGNORE_get_mempolicy
> 
> This needs to be added to testcases/kernel/include/generate.sh for
> linux_syscall_numbers.h, or an arch specific #ifdef should be added
> for that test / to an autoconf test that would automatically determine
> whether or not your platform had a usable get_mempolicy syscall.
> 
> Hope that helps describe what needs to take place next...

This is even simplier. Just look into testcases/kernel/include/ directory and
add "get_mempolicy xxx" and "set_mempolicy yyy" into corresponding file (for
you it's s390.in). The build porcess should generate file
linux_syscall_numbers.h for you. Anyway I'm preparing patch fixing this.

-- 
Cyril Hrubis
chrubis@suse.cz

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