| { |
| "atomic exchange smoketest - 64bit", |
| .insns = { |
| /* val = 3; */ |
| BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 3), |
| /* old = atomic_xchg(&val, 4); */ |
| BPF_MOV64_IMM(BPF_REG_1, 4), |
| BPF_ATOMIC_OP(BPF_DW, BPF_XCHG, BPF_REG_10, BPF_REG_1, -8), |
| /* if (old != 3) exit(1); */ |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2), |
| BPF_MOV64_IMM(BPF_REG_0, 1), |
| BPF_EXIT_INSN(), |
| /* if (val != 4) exit(2); */ |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 4, 2), |
| BPF_MOV64_IMM(BPF_REG_0, 2), |
| BPF_EXIT_INSN(), |
| /* exit(0); */ |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .result = ACCEPT, |
| }, |
| { |
| "atomic exchange smoketest - 32bit", |
| .insns = { |
| /* val = 3; */ |
| BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 3), |
| /* old = atomic_xchg(&val, 4); */ |
| BPF_MOV32_IMM(BPF_REG_1, 4), |
| BPF_ATOMIC_OP(BPF_W, BPF_XCHG, BPF_REG_10, BPF_REG_1, -4), |
| /* if (old != 3) exit(1); */ |
| BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 3, 2), |
| BPF_MOV32_IMM(BPF_REG_0, 1), |
| BPF_EXIT_INSN(), |
| /* if (val != 4) exit(2); */ |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -4), |
| BPF_JMP32_IMM(BPF_JEQ, BPF_REG_0, 4, 2), |
| BPF_MOV32_IMM(BPF_REG_0, 2), |
| BPF_EXIT_INSN(), |
| /* exit(0); */ |
| BPF_MOV32_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .result = ACCEPT, |
| }, |
