Function report |
Source Code:lib\test_bpf.c |
Create Date:2022-07-28 06:26:57 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:bpf_fill_maxinsns10
Proto:static int bpf_fill_maxinsns10(struct bpf_test *self)
Type:int
Parameter:
| Type | Parameter | Name |
|---|---|---|
| struct bpf_test * | self |
| 294 | len = BPF_MAXINSNS , hlen = len - 2 |
| 298 | insn = kmalloc_array - allocate memory for an array.*@n: number of elements.*@size: element size.*@flags: the type of memory to allocate (see kmalloc). |
| 302 | When i < hlen / 2 cycle insn[i] = Conditional jumps against immediates, if (dst_reg 'op' imm32) goto pc + off16 (BPF_JA, 0, 0, hlen - 2 - 2 * i) |
| 304 | When i > hlen / 2 cycle insn[i] = Conditional jumps against immediates, if (dst_reg 'op' imm32) goto pc + off16 (BPF_JA, 0, 0, hlen - 1 - 2 * i) |
| 307 | insn[hlen / 2] = Conditional jumps against immediates, if (dst_reg 'op' imm32) goto pc + off16 (BPF_JA, 0, 0, hlen / 2 - 1) |
| 308 | insn[hlen] = BPF_ALU32_IMM(mov reg to reg , Redefine REGs to make tests less verbose , 0xabababac) |
| 309 | insn[hlen + 1] = Program exit () |
| 314 | Return 0 |
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