On 2016-11-28 15:13:02 [+0530], $rik@nth wrote: > Hi All, Hi, I suggest to set a proper From: in your mail client. > I am trying to cross compile rt-tests on Ubuntu with 64bit cross gcc > tool chain and ended up with below error (Able to compile successfully > with 32bit tool chain). Can someone help clarifying the below error? > Is this the issue with syscalls or with linux kernel version. How to > get it compile successfully for 64bit ARCH. > > aarch64-linux-gnu-gcc-4.8 -D VERSION=1.0 -c src/lib/rt-sched.c -Wall > -Wno-nonnull -O2 -D_GNU_SOURCE -Isrc/include -o bld/rt-sched.o > src/lib/rt-sched.c: In function âsched_setattrâ: > src/lib/rt-sched.c:34:17: error: â__NR_sched_setattrâ undeclared > (first use in this function) > return syscall(__NR_sched_setattr, pid, attr, flags); It works here: aarch64-linux-gnu-gcc -D VERSION=1.0 -c src/lib/rt-sched.c -Wall -Wno-nonnull -O2 -D_GNU_SOURCE -Isrc/include -o bld/rt-sched.o with gcc version 6.2.1 20161124 (Debian 6.2.1-5). I assume your toolchain is too old. __NR_sched_setattr was added in v3.14 so I assume your kernel headers are pre v3.14. Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
