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.
Thank you--
-Tomonori Mitani
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