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-rw-r--r--lib/test_bpf.c498
1 files changed, 498 insertions, 0 deletions
diff --git a/lib/test_bpf.c b/lib/test_bpf.c
index c74e8744722b..e1b4844b5424 100644
--- a/lib/test_bpf.c
+++ b/lib/test_bpf.c
@@ -435,6 +435,41 @@ loop:
return 0;
}
+static int __bpf_fill_stxdw(struct bpf_test *self, int size)
+{
+ unsigned int len = BPF_MAXINSNS;
+ struct bpf_insn *insn;
+ int i;
+
+ insn = kmalloc_array(len, sizeof(*insn), GFP_KERNEL);
+ if (!insn)
+ return -ENOMEM;
+
+ insn[0] = BPF_ALU32_IMM(BPF_MOV, R0, 1);
+ insn[1] = BPF_ST_MEM(size, R10, -40, 42);
+
+ for (i = 2; i < len - 2; i++)
+ insn[i] = BPF_STX_XADD(size, R10, R0, -40);
+
+ insn[len - 2] = BPF_LDX_MEM(size, R0, R10, -40);
+ insn[len - 1] = BPF_EXIT_INSN();
+
+ self->u.ptr.insns = insn;
+ self->u.ptr.len = len;
+
+ return 0;
+}
+
+static int bpf_fill_stxw(struct bpf_test *self)
+{
+ return __bpf_fill_stxdw(self, BPF_W);
+}
+
+static int bpf_fill_stxdw(struct bpf_test *self)
+{
+ return __bpf_fill_stxdw(self, BPF_DW);
+}
+
static struct bpf_test tests[] = {
{
"TAX",
@@ -892,6 +927,32 @@ static struct bpf_test tests[] = {
{ { 2, 0 }, { 3, 1 }, { 4, MAX_K } },
},
{
+ "JGE (jt 0), test 1",
+ .u.insns = {
+ BPF_STMT(BPF_LDX | BPF_LEN, 0),
+ BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
+ BPF_JUMP(BPF_JMP | BPF_JGE | BPF_X, 0, 0, 1),
+ BPF_STMT(BPF_RET | BPF_K, 1),
+ BPF_STMT(BPF_RET | BPF_K, MAX_K)
+ },
+ CLASSIC,
+ { 4, 4, 4, 3, 3 },
+ { { 2, 0 }, { 3, 1 }, { 4, 1 } },
+ },
+ {
+ "JGE (jt 0), test 2",
+ .u.insns = {
+ BPF_STMT(BPF_LDX | BPF_LEN, 0),
+ BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
+ BPF_JUMP(BPF_JMP | BPF_JGE | BPF_X, 0, 0, 1),
+ BPF_STMT(BPF_RET | BPF_K, 1),
+ BPF_STMT(BPF_RET | BPF_K, MAX_K)
+ },
+ CLASSIC,
+ { 4, 4, 5, 3, 3 },
+ { { 4, 1 }, { 5, 1 }, { 6, MAX_K } },
+ },
+ {
"JGE",
.u.insns = {
BPF_STMT(BPF_LDX | BPF_LEN, 0),
@@ -4006,6 +4067,41 @@ static struct bpf_test tests[] = {
{ { 0, 0x22 } },
},
{
+ "STX_XADD_W: Test side-effects, r10: 0x12 + 0x10 = 0x22",
+ .u.insns_int = {
+ BPF_ALU64_REG(BPF_MOV, R1, R10),
+ BPF_ALU32_IMM(BPF_MOV, R0, 0x12),
+ BPF_ST_MEM(BPF_W, R10, -40, 0x10),
+ BPF_STX_XADD(BPF_W, R10, R0, -40),
+ BPF_ALU64_REG(BPF_MOV, R0, R10),
+ BPF_ALU64_REG(BPF_SUB, R0, R1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 0 } },
+ },
+ {
+ "STX_XADD_W: Test side-effects, r0: 0x12 + 0x10 = 0x22",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0x12),
+ BPF_ST_MEM(BPF_W, R10, -40, 0x10),
+ BPF_STX_XADD(BPF_W, R10, R0, -40),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 0x12 } },
+ },
+ {
+ "STX_XADD_W: X + 1 + 1 + 1 + ...",
+ { },
+ INTERNAL,
+ { },
+ { { 0, 4134 } },
+ .fill_helper = bpf_fill_stxw,
+ },
+ {
"STX_XADD_DW: Test: 0x12 + 0x10 = 0x22",
.u.insns_int = {
BPF_ALU32_IMM(BPF_MOV, R0, 0x12),
@@ -4018,6 +4114,41 @@ static struct bpf_test tests[] = {
{ },
{ { 0, 0x22 } },
},
+ {
+ "STX_XADD_DW: Test side-effects, r10: 0x12 + 0x10 = 0x22",
+ .u.insns_int = {
+ BPF_ALU64_REG(BPF_MOV, R1, R10),
+ BPF_ALU32_IMM(BPF_MOV, R0, 0x12),
+ BPF_ST_MEM(BPF_DW, R10, -40, 0x10),
+ BPF_STX_XADD(BPF_DW, R10, R0, -40),
+ BPF_ALU64_REG(BPF_MOV, R0, R10),
+ BPF_ALU64_REG(BPF_SUB, R0, R1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 0 } },
+ },
+ {
+ "STX_XADD_DW: Test side-effects, r0: 0x12 + 0x10 = 0x22",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0x12),
+ BPF_ST_MEM(BPF_DW, R10, -40, 0x10),
+ BPF_STX_XADD(BPF_DW, R10, R0, -40),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 0x12 } },
+ },
+ {
+ "STX_XADD_DW: X + 1 + 1 + 1 + ...",
+ { },
+ INTERNAL,
+ { },
+ { { 0, 4134 } },
+ .fill_helper = bpf_fill_stxdw,
+ },
/* BPF_JMP | BPF_EXIT */
{
"JMP_EXIT",
@@ -4044,6 +4175,35 @@ static struct bpf_test tests[] = {
{ },
{ { 0, 1 } },
},
+ /* BPF_JMP | BPF_JSLT | BPF_K */
+ {
+ "JMP_JSLT_K: Signed jump: if (-2 < -1) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, 0xfffffffffffffffeLL),
+ BPF_JMP_IMM(BPF_JSLT, R1, -1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
+ {
+ "JMP_JSLT_K: Signed jump: if (-1 < -1) return 0",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_LD_IMM64(R1, 0xffffffffffffffffLL),
+ BPF_JMP_IMM(BPF_JSLT, R1, -1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
/* BPF_JMP | BPF_JSGT | BPF_K */
{
"JMP_JSGT_K: Signed jump: if (-1 > -2) return 1",
@@ -4073,6 +4233,73 @@ static struct bpf_test tests[] = {
{ },
{ { 0, 1 } },
},
+ /* BPF_JMP | BPF_JSLE | BPF_K */
+ {
+ "JMP_JSLE_K: Signed jump: if (-2 <= -1) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, 0xfffffffffffffffeLL),
+ BPF_JMP_IMM(BPF_JSLE, R1, -1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
+ {
+ "JMP_JSLE_K: Signed jump: if (-1 <= -1) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, 0xffffffffffffffffLL),
+ BPF_JMP_IMM(BPF_JSLE, R1, -1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
+ {
+ "JMP_JSLE_K: Signed jump: value walk 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, 3),
+ BPF_JMP_IMM(BPF_JSLE, R1, 0, 6),
+ BPF_ALU64_IMM(BPF_SUB, R1, 1),
+ BPF_JMP_IMM(BPF_JSLE, R1, 0, 4),
+ BPF_ALU64_IMM(BPF_SUB, R1, 1),
+ BPF_JMP_IMM(BPF_JSLE, R1, 0, 2),
+ BPF_ALU64_IMM(BPF_SUB, R1, 1),
+ BPF_JMP_IMM(BPF_JSLE, R1, 0, 1),
+ BPF_EXIT_INSN(), /* bad exit */
+ BPF_ALU32_IMM(BPF_MOV, R0, 1), /* good exit */
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
+ {
+ "JMP_JSLE_K: Signed jump: value walk 2",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, 3),
+ BPF_JMP_IMM(BPF_JSLE, R1, 0, 4),
+ BPF_ALU64_IMM(BPF_SUB, R1, 2),
+ BPF_JMP_IMM(BPF_JSLE, R1, 0, 2),
+ BPF_ALU64_IMM(BPF_SUB, R1, 2),
+ BPF_JMP_IMM(BPF_JSLE, R1, 0, 1),
+ BPF_EXIT_INSN(), /* bad exit */
+ BPF_ALU32_IMM(BPF_MOV, R0, 1), /* good exit */
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
/* BPF_JMP | BPF_JSGE | BPF_K */
{
"JMP_JSGE_K: Signed jump: if (-1 >= -2) return 1",
@@ -4117,6 +4344,49 @@ static struct bpf_test tests[] = {
{ },
{ { 0, 1 } },
},
+ {
+ "JMP_JGT_K: Unsigned jump: if (-1 > 1) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, -1),
+ BPF_JMP_IMM(BPF_JGT, R1, 1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
+ /* BPF_JMP | BPF_JLT | BPF_K */
+ {
+ "JMP_JLT_K: if (2 < 3) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, 2),
+ BPF_JMP_IMM(BPF_JLT, R1, 3, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
+ {
+ "JMP_JGT_K: Unsigned jump: if (1 < -1) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, 1),
+ BPF_JMP_IMM(BPF_JLT, R1, -1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
/* BPF_JMP | BPF_JGE | BPF_K */
{
"JMP_JGE_K: if (3 >= 2) return 1",
@@ -4132,6 +4402,21 @@ static struct bpf_test tests[] = {
{ },
{ { 0, 1 } },
},
+ /* BPF_JMP | BPF_JLE | BPF_K */
+ {
+ "JMP_JLE_K: if (2 <= 3) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, 2),
+ BPF_JMP_IMM(BPF_JLE, R1, 3, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
/* BPF_JMP | BPF_JGT | BPF_K jump backwards */
{
"JMP_JGT_K: if (3 > 2) return 1 (jump backwards)",
@@ -4162,6 +4447,36 @@ static struct bpf_test tests[] = {
{ },
{ { 0, 1 } },
},
+ /* BPF_JMP | BPF_JLT | BPF_K jump backwards */
+ {
+ "JMP_JGT_K: if (2 < 3) return 1 (jump backwards)",
+ .u.insns_int = {
+ BPF_JMP_IMM(BPF_JA, 0, 0, 2), /* goto start */
+ BPF_ALU32_IMM(BPF_MOV, R0, 1), /* out: */
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 0), /* start: */
+ BPF_LD_IMM64(R1, 2), /* note: this takes 2 insns */
+ BPF_JMP_IMM(BPF_JLT, R1, 3, -6), /* goto out */
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
+ {
+ "JMP_JLE_K: if (3 <= 3) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, 3),
+ BPF_JMP_IMM(BPF_JLE, R1, 3, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
/* BPF_JMP | BPF_JNE | BPF_K */
{
"JMP_JNE_K: if (3 != 2) return 1",
@@ -4252,6 +4567,37 @@ static struct bpf_test tests[] = {
{ },
{ { 0, 1 } },
},
+ /* BPF_JMP | BPF_JSLT | BPF_X */
+ {
+ "JMP_JSLT_X: Signed jump: if (-2 < -1) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, -1),
+ BPF_LD_IMM64(R2, -2),
+ BPF_JMP_REG(BPF_JSLT, R2, R1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
+ {
+ "JMP_JSLT_X: Signed jump: if (-1 < -1) return 0",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_LD_IMM64(R1, -1),
+ BPF_LD_IMM64(R2, -1),
+ BPF_JMP_REG(BPF_JSLT, R1, R2, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
/* BPF_JMP | BPF_JSGE | BPF_X */
{
"JMP_JSGE_X: Signed jump: if (-1 >= -2) return 1",
@@ -4283,6 +4629,37 @@ static struct bpf_test tests[] = {
{ },
{ { 0, 1 } },
},
+ /* BPF_JMP | BPF_JSLE | BPF_X */
+ {
+ "JMP_JSLE_X: Signed jump: if (-2 <= -1) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, -1),
+ BPF_LD_IMM64(R2, -2),
+ BPF_JMP_REG(BPF_JSLE, R2, R1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
+ {
+ "JMP_JSLE_X: Signed jump: if (-1 <= -1) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, -1),
+ BPF_LD_IMM64(R2, -1),
+ BPF_JMP_REG(BPF_JSLE, R1, R2, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
/* BPF_JMP | BPF_JGT | BPF_X */
{
"JMP_JGT_X: if (3 > 2) return 1",
@@ -4299,6 +4676,52 @@ static struct bpf_test tests[] = {
{ },
{ { 0, 1 } },
},
+ {
+ "JMP_JGT_X: Unsigned jump: if (-1 > 1) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, -1),
+ BPF_LD_IMM64(R2, 1),
+ BPF_JMP_REG(BPF_JGT, R1, R2, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
+ /* BPF_JMP | BPF_JLT | BPF_X */
+ {
+ "JMP_JLT_X: if (2 < 3) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, 3),
+ BPF_LD_IMM64(R2, 2),
+ BPF_JMP_REG(BPF_JLT, R2, R1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
+ {
+ "JMP_JLT_X: Unsigned jump: if (1 < -1) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, -1),
+ BPF_LD_IMM64(R2, 1),
+ BPF_JMP_REG(BPF_JLT, R2, R1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
/* BPF_JMP | BPF_JGE | BPF_X */
{
"JMP_JGE_X: if (3 >= 2) return 1",
@@ -4330,6 +4753,37 @@ static struct bpf_test tests[] = {
{ },
{ { 0, 1 } },
},
+ /* BPF_JMP | BPF_JLE | BPF_X */
+ {
+ "JMP_JLE_X: if (2 <= 3) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, 3),
+ BPF_LD_IMM64(R2, 2),
+ BPF_JMP_REG(BPF_JLE, R2, R1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
+ {
+ "JMP_JLE_X: if (3 <= 3) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, 3),
+ BPF_LD_IMM64(R2, 3),
+ BPF_JMP_REG(BPF_JLE, R1, R2, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
{
/* Mainly testing JIT + imm64 here. */
"JMP_JGE_X: ldimm64 test 1",
@@ -4375,6 +4829,50 @@ static struct bpf_test tests[] = {
{ },
{ { 0, 1 } },
},
+ {
+ "JMP_JLE_X: ldimm64 test 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, 3),
+ BPF_LD_IMM64(R2, 2),
+ BPF_JMP_REG(BPF_JLE, R2, R1, 2),
+ BPF_LD_IMM64(R0, 0xffffffffffffffffULL),
+ BPF_LD_IMM64(R0, 0xeeeeeeeeeeeeeeeeULL),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 0xeeeeeeeeU } },
+ },
+ {
+ "JMP_JLE_X: ldimm64 test 2",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, 3),
+ BPF_LD_IMM64(R2, 2),
+ BPF_JMP_REG(BPF_JLE, R2, R1, 0),
+ BPF_LD_IMM64(R0, 0xffffffffffffffffULL),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 0xffffffffU } },
+ },
+ {
+ "JMP_JLE_X: ldimm64 test 3",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_LD_IMM64(R1, 3),
+ BPF_LD_IMM64(R2, 2),
+ BPF_JMP_REG(BPF_JLE, R2, R1, 4),
+ BPF_LD_IMM64(R0, 0xffffffffffffffffULL),
+ BPF_LD_IMM64(R0, 0xeeeeeeeeeeeeeeeeULL),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
/* BPF_JMP | BPF_JNE | BPF_X */
{
"JMP_JNE_X: if (3 != 2) return 1",
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-21 17:46:49 +0000