kernel/bpf/core.c

58 #define DST	regs[insn->dst_reg]
322 			   dst[i].dst_reg == 0 &&
1304 	if (from->dst_reg == BPF_REG_AX || from->src_reg == BPF_REG_AX)
1310 		*to++ = BPF_ALU64_REG(BPF_XOR, from->dst_reg, from->dst_reg);
1326 		*to++ = BPF_ALU32_REG_OFF(from->code, from->dst_reg, BPF_REG_AX, from->off);
1340 		*to++ = BPF_ALU64_REG_OFF(from->code, from->dst_reg, BPF_REG_AX, from->off);
1360 		*to++ = BPF_JMP_REG(from->code, from->dst_reg, BPF_REG_AX, off);
1380 		*to++ = BPF_JMP32_REG(from->code, from->dst_reg, BPF_REG_AX,
1388 		*to++ = BPF_ALU64_REG(BPF_MOV, aux[0].dst_reg, BPF_REG_AX);
1395 		*to++ = BPF_ALU64_REG(BPF_OR,  aux[0].dst_reg, BPF_REG_AX);
1404 		*to++ = BPF_STX_MEM(from->code, from->dst_reg, BPF_REG_AX, from->off);