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authorDaniel Borkmann <daniel@iogearbox.net>2018-01-27 01:33:48 +0300
committerAlexei Starovoitov <ast@kernel.org>2018-01-27 03:42:07 +0300
commit21ccaf21497b72f42133182716a42dbf573d314b (patch)
tree7294f8492555ec8d65ee23534f38c62d0e6029d5 /lib/test_bpf.c
parent73ae3c0426f01295ef307caf9531c0453b8f2728 (diff)
downloadlinux-21ccaf21497b72f42133182716a42dbf573d314b.tar.xz
bpf: add further test cases around div/mod and others
Update selftests to relfect recent changes and add various new test cases. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'lib/test_bpf.c')
-rw-r--r--lib/test_bpf.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/test_bpf.c b/lib/test_bpf.c
index e3938e395cba..4cd9ea9b3449 100644
--- a/lib/test_bpf.c
+++ b/lib/test_bpf.c
@@ -2003,10 +2003,14 @@ static struct bpf_test tests[] = {
{ { 4, 0 }, { 5, 10 } }
},
{
- "INT: DIV by zero",
+ /* This one doesn't go through verifier, but is just raw insn
+ * as opposed to cBPF tests from here. Thus div by 0 tests are
+ * done in test_verifier in BPF kselftests.
+ */
+ "INT: DIV by -1",
.u.insns_int = {
BPF_ALU64_REG(BPF_MOV, R6, R1),
- BPF_ALU64_IMM(BPF_MOV, R7, 0),
+ BPF_ALU64_IMM(BPF_MOV, R7, -1),
BPF_LD_ABS(BPF_B, 3),
BPF_ALU32_REG(BPF_DIV, R0, R7),
BPF_EXIT_INSN(),