On Feb 9, 2010, at 10:26 PM, Mitani wrote:
> Hi,
>
> I tried to build with "2010-02-10" cvs in my systems.
> I tried in RHEL5.4 (2.6.18-164.el5) and RHEL4.8 (2.6.9-89.ELsmp).
> But "make" failed in "check_netns_enabled.c" as follows in RHEL4.8:
> ------------
> gcc -g -O2 -g -O2 -fno-strict-aliasing -pipe -Wall
> -I/home/LTP/ltp-2010-02-10/testcases/kernel/include
> -I/home/LTP/ltp-2010-02-10/testcases/kernel/containers/netns/../libclone
> -I../../../../include -I../../../../include
> -L/home/LTP/ltp-2010-02-10/testcases/kernel/containers/netns/../libclone
> -L../../../../lib check_netns_enabled.c -lltp -o check_netns_enabled
> check_netns_enabled.c: In function `main':
> check_netns_enabled.c:40: warning: implicit declaration of function
> `unshare'
> /tmp/cciXlXlf.o(.text+0x2c): In function `main':
> /home/LTP/ltp-2010-02-10/testcases/kernel/containers/netns/check_netns_enabl
> ed.c:40: undefined reference to `unshare'
> collect2: ld returned 1 exit status
> make[4]: *** [check_netns_enabled] Error 1
> make[4]: Leaving directory
> `/home/LTP/ltp-2010-02-10/testcases/kernel/containers/netns'
> ------------
>
> "unshare()" function was supported after kernel 2.6.16.
> Therefore, "make" of "check_netns_enabled.c" failed in RHEL4.8, I think.
>
> I made patch and "make" succeeded:
> ============
> --- ./testcases/kernel/containers/netns/check_netns_enabled.c 2008-09-19
> 21:17:10.000000000 +0900
> +++ ./testcases/kernel/containers/netns/check_netns_enabled.c.new
> 2010-02-10 14:59:53.000000000 +0900
> @@ -37,10 +37,12 @@
> if (tst_kvercmp(2,6,24) < 0)
> return 1;
>
> +#ifdef HAVE_UNSHARE
> ret = unshare(flags);
> if ( ret < 0 ) {
> printf ("Error:Unshare syscall failed for network
> namespace\n");
> return 3;
> }
> +#endif
> return 0;
> }
> ============
>
> I'm glad if I could get some opinions.
Should be fixed now.
-Garrett
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