BMC/Intel-BMC/linux.git/tools/testing/selftests/bpf/progs/loop3.c, branch dev-5.4Intel OpenBMC Linux kernel source tree (mirror)https://git.radix-linux.su/BMC/Intel-BMC/linux.git/atom?h=dev-5.42019-07-12T13:38:23+00:00selftests/bpf: fix compiling loop{1, 2, 3}.c on s3902019-07-12T13:38:23+00:00Ilya Leoshkevichiii@linux.ibm.com2019-07-11T14:29:30+00:00urn:sha1:af3c24e0e2ed25177b03b60ada9117bb596e8d95
Use PT_REGS_RC(ctx) instead of ctx->rax, which is not present on s390.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Stanislav Fomichev <sdf@google.com>
Tested-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
selftests/bpf: add realistic loop tests2019-06-19T00:22:52+00:00Alexei Starovoitovast@kernel.org2019-06-15T19:12:24+00:00urn:sha1:b061017f8b4d0e05d4c11486581a702fb2a975b2
Add a bunch of loop tests. Most of them are created by replacing
'#pragma unroll' with '#pragma clang loop unroll(disable)'
Several tests are artificially large:
/* partial unroll. llvm will unroll loop ~150 times.
* C loop count -> 600.
* Asm loop count -> 4.
* 16k insns in loop body.
* Total of 5 such loops. Total program size ~82k insns.
*/
"./pyperf600.o",
/* no unroll at all.
* C loop count -> 600.
* ASM loop count -> 600.
* ~110 insns in loop body.
* Total of 5 such loops. Total program size ~1500 insns.
*/
"./pyperf600_nounroll.o",
/* partial unroll. 19k insn in a loop.
* Total program size 20.8k insn.
* ~350k processed_insns
*/
"./strobemeta.o",
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>