Hi All, Thanks for the help I was getting SYS_getrandom not defined compilation error as it is not defined in my c libraries. Also now i am able to call getrandom through syscall with proper syscall number which is arch dependent. syscall (6314, buf, l , o); On Wed, Jun 22, 2016 at 10:41 PM, Markus Böhme <markus.boehme@xxxxxxxxxxx> wrote: > On 06/22/2016 04:58 PM, Avantika Rawat wrote: >> Thanks for the link but i am getting "Function not implemented" error. >> I have added a custom syscall in kernel for testing, getting similar >> error for that also. I am working on 3.10.20 Kernel and MIPS >> architecture. Pasting the kernel changes done to spport getrandom >> syscall in 3.10.20 kernel. Can someone please help me here that what >> needs to be done. > > If you're on MIPS, x86 code and syscall numbers won't help you. In this > case the proper syscall numbers are defined in > arch/mips/include/uapi/asm/unistd.h. > > Additionally, note that your kernel version does not seem to implement > the getrandom syscall for MIPS: > > $ git blame arch/mips/include/uapi/asm/unistd.h | grep getrandom > 42944521 (Ralf Baechle 2014-08-26 03:03:40 +0200 376) #define > __NR_getrandom (__NR_Linux + 353) > 42944521 (Ralf Baechle 2014-08-26 03:03:40 +0200 716) #define > __NR_getrandom (__NR_Linux + 313) > 42944521 (Ralf Baechle 2014-08-26 03:03:40 +0200 1060) #define > __NR_getrandom (__NR_Linux + 317) > > $ git show 42944521 | head -n 5 > commit 42944521af97a3b25516f15f3149aec3779656dc > Author: Ralf Baechle <ralf@xxxxxxxxxxxxxx> > Date: Tue Aug 26 03:03:40 2014 +0200 > > MIPS: Wire up new syscalls getrandom and memfd_create. > > $ git show v3.10.20 | head -n 3 > tag v3.10.20 > Tagger: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > Date: Wed Nov 20 12:28:06 2013 -0800 > > > Regards, > Markus -- Regards, Avantika Rawat _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
