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