1 {
2 "atomic exchange smoketest - 64bit",
3 .insns = {
4 /* val = 3; */
5 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 3),
6 /* old = atomic_xchg(&val, 4); */
7 BPF_MOV64_IMM(BPF_REG_1, 4),
8 BPF_ATOMIC_OP(BPF_DW, BPF_XCHG, BPF_REG_10, BPF_REG_1, -8),
9 /* if (old != 3) exit(1); */
10 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
11 BPF_MOV64_IMM(BPF_REG_0, 1),
12 BPF_EXIT_INSN(),
13 /* if (val != 4) exit(2); */
14 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
15 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 4, 2),
16 BPF_MOV64_IMM(BPF_REG_0, 2),
17 BPF_EXIT_INSN(),
18 /* exit(0); */
19 BPF_MOV64_IMM(BPF_REG_0, 0),
20 BPF_EXIT_INSN(),
21 },
22 .result = ACCEPT,
23 },
24 {
25 "atomic exchange smoketest - 32bit",
26 .insns = {
27 /* val = 3; */
28 BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 3),
29 /* old = atomic_xchg(&val, 4); */
30 BPF_MOV32_IMM(BPF_REG_1, 4),
31 BPF_ATOMIC_OP(BPF_W, BPF_XCHG, BPF_REG_10, BPF_REG_1, -4),
32 /* if (old != 3) exit(1); */
33 BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
34 BPF_MOV32_IMM(BPF_REG_0, 1),
35 BPF_EXIT_INSN(),
36 /* if (val != 4) exit(2); */
37 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -4),
38 BPF_JMP32_IMM(BPF_JEQ, BPF_REG_0, 4, 2),
39 BPF_MOV32_IMM(BPF_REG_0, 2),
40 BPF_EXIT_INSN(),
41 /* exit(0); */
42 BPF_MOV32_IMM(BPF_REG_0, 0),
43 BPF_EXIT_INSN(),
44 },
45 .result = ACCEPT,
46 },
47
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