Subrata Modak wrote:
> Veerendra,
>
> Will you be able to look into this ?
>
> Regards--
> Subrata
>
> On Mon, 2008-10-20 at 14:39 +0530, Subrata Modak wrote:
>
>> Hi Veerendra,
>>
>> Some odd errors are thrown while compiling libclone and netns at today´s
>> CVS. Can you please look into them below:
>>
>> 1) uname -a
>> Linux 2.6.27-autokern1 #1 SMP Mon Oct 20 07:31:24 UTC 2008 ppc64
>> GNU/Linux
>>
>> # gcc --version
>> gcc (GCC) 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)
>>
>> cc -Wall -Wall -I../../../../include -I../libclone
>> check_netns_enabled.c -L../../../../lib
>> -L../libclone ../libclone/libnetns.a -lltp -o check_netns_enabled
>> check_netns_enabled.c: In function 'main':
>> check_netns_enabled.c:40: warning: implicit declaration of function
>> 'unshare'
>> /tmp/ccEyOfIC.o: In function `main':
>> check_netns_enabled.c:(.text+0x64): undefined reference to `unshare'
>> collect2: ld returned 1 exit status
>> make[4]: *** [check_netns_enabled] Error 1
>>
>>
>>
>> 2) uname -a
>> Linux 2.6.27-autokern1 #1 SMP Mon Oct 20 00:45:37 PDT 2008 i686
>> GNU/Linux
>>
>>
>> # gcc --version
>> gcc (GCC) 4.1.2 20060901 (prerelease) (Debian 4.1.1-13)
>>
>>
>> make[4]: Entering directory
>> `/root/subrata/ltp/ltp-full-20081020/testcases/kernel/containers/libclone'
>> cc -Wall -I../../../../include -c -o libclone.o libclone.c
>> libclone.c: In function 'do_unshare_tests':
>> libclone.c:76: error: 'SYS_unshare' undeclared (first use in this
>> function)
>> libclone.c:76: error: (Each undeclared identifier is reported only once
>> libclone.c:76: error: for each function it appears in.)
>> make[4]: *** [libclone.o] Error 1
>>
>>
>> 3) uname -a
>> Linux 2.6.27-autokern1 #1 SMP Mon Oct 20 07:40:06 UTC 2008 ppc64
>> GNU/Linux
>>
>> # gcc --version
>> gcc (GCC) 4.0.2 20050808 (prerelease) (Ubuntu 4.0.1-4ubuntu9)
>>
>>
>> cc -Wall -Wall -I../../../../include -I../libclone
>> check_netns_enabled.c -L../../../../lib
>> -L../libclone ../libclone/libnetns.a -lltp -o check_netns_enabled
>> check_netns_enabled.c: In function 'main':
>> check_netns_enabled.c:40: warning: implicit declaration of function
>> 'unshare'
>> /tmp/ccdJBhMn.o: In function `main':
>> check_netns_enabled.c:(.text+0x64): undefined reference to `unshare'
>> collect2: ld returned 1 exit status
>> make[4]: *** [check_netns_enabled] Error 1
>>
Subrata,
Is it happening still ?
This problem might be because of this reason.
If I have built and installed a new kernel and the definition for new
syscall is present in this path.
But the user level application will look in the path /usr/include/ path
and fails.
Installing the latest glibc-header rpm may solve the problem ?
Rgds
Veerendra C
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