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

[Subrata Modak <subrata@linux.vnet.ibm.com>]

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Hi Mark,

>On Tue, 2009-10-13 at 20:42 -0700, Garrett Cooper wrote:
>On Tue, Oct 13, 2009 at 7:18 PM, Mark Ver <markver@us.ibm.com> wrote:
> > Trying to build ltp-full-20090930 on SLES-11. The "make all" gets the
> > following:
> >
> > ...
> > 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...

As Garret proposed, can you please apply the following Patch and see if it
solves your build problem. I get the following instructions from 2.6.31
kernel sources:

linux-2.6.31/arch/s390/include/asm/unistd.h:
208 #define __NR_remap_file_pages   267
209 /* Number 268 is reserved for new sys_mbind */
210 /* Number 269 is reserved for new sys_get_mempolicy */
211 /* Number 270 is reserved for new sys_set_mempolicy */
212 #define __NR_mq_open            271

Signed-off-by: Subrata Modak <subrata@linux.vnet.ibm.com>,
---

--- ltp-intermediate-20091013/testcases/kernel/include/s390x.in.orig	2009-10-14 17:14:39.000000000 +0530
+++ ltp-intermediate-20091013/testcases/kernel/include/s390x.in	2009-10-14 17:15:26.000000000 +0530
@@ -14,3 +14,6 @@ fchmodat (__NR_openat + 11)
 faccessat (__NR_openat + 12)
 eventfd 318
 fallocate 314
+get_mempolicy 269
+set_mempolicy 270
+

---
Regards--
Subrata

-Garrett
> 
> 


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