selftests/bpf/disasm.c

143 		insn->code, insn->dst_reg,
144 		BPF_SRC(insn->code) == BPF_TO_BE ? "be" : "le",
153 		insn->code, insn->dst_reg,
159 	return (BPF_OP(insn->code)  == BPF_DIV || BPF_OP(insn->code) == BPF_MOD) &&
165 	return BPF_OP(insn->code) == BPF_MOV &&
171 	return insn->code == (BPF_ALU64 | BPF_MOV | BPF_X) &&
183 	return insn->code == (BPF_ALU64 | BPF_MOV | BPF_X) && insn->off == BPF_ADDR_PERCPU;
191 	u8 class = BPF_CLASS(insn->code);
194 		if (BPF_OP(insn->code) == BPF_END) {
199 		} else if (BPF_OP(insn->code) == BPF_NEG) {
201 				insn->code, class == BPF_ALU ? 'w' : 'r',
206 				insn->code, insn->dst_reg,
210 				insn->code, insn->dst_reg, insn->src_reg);
211 		} else if (BPF_SRC(insn->code) == BPF_X) {
213 				insn->code, class == BPF_ALU ? 'w' : 'r',
215 				is_sdiv_smod(insn) ? bpf_alu_sign_string[BPF_OP(insn->code) >> 4]
216 						   : bpf_alu_string[BPF_OP(insn->code) >> 4],
222 				insn->code, class == BPF_ALU ? 'w' : 'r',
224 				is_sdiv_smod(insn) ? bpf_alu_sign_string[BPF_OP(insn->code) >> 4]
225 						   : bpf_alu_string[BPF_OP(insn->code) >> 4],
229 		if (BPF_MODE(insn->code) == BPF_MEM)
231 				insn->code,
232 				bpf_ldst_string[BPF_SIZE(insn->code) >> 3],
235 		else if (BPF_MODE(insn->code) == BPF_ATOMIC &&
239 				insn->code,
240 				bpf_ldst_string[BPF_SIZE(insn->code) >> 3],
244 		} else if (BPF_MODE(insn->code) == BPF_ATOMIC &&
250 				insn->code, insn->src_reg,
251 				BPF_SIZE(insn->code) == BPF_DW ? "64" : "",
253 				bpf_ldst_string[BPF_SIZE(insn->code) >> 3],
255 		} else if (BPF_MODE(insn->code) == BPF_ATOMIC &&
258 				insn->code,
259 				BPF_SIZE(insn->code) == BPF_DW ? "64" : "",
260 				bpf_ldst_string[BPF_SIZE(insn->code) >> 3],
263 		} else if (BPF_MODE(insn->code) == BPF_ATOMIC &&
266 				insn->code, insn->src_reg,
267 				BPF_SIZE(insn->code) == BPF_DW ? "64" : "",
268 				bpf_ldst_string[BPF_SIZE(insn->code) >> 3],
270 		} else if (BPF_MODE(insn->code) == BPF_ATOMIC &&
273 				insn->code, insn->dst_reg,
274 				bpf_ldst_string[BPF_SIZE(insn->code) >> 3],
276 		} else if (BPF_MODE(insn->code) == BPF_ATOMIC &&
279 				insn->code,
280 				bpf_ldst_string[BPF_SIZE(insn->code) >> 3],
283 			verbose(cbs->private_data, "BUG_%02x\n", insn->code);
286 		if (BPF_MODE(insn->code) == BPF_MEM) {
288 				insn->code,
289 				bpf_ldst_string[BPF_SIZE(insn->code) >> 3],
292 		} else if (BPF_MODE(insn->code) == 0xc0 /* BPF_NOSPEC, no UAPI */) {
293 			verbose(cbs->private_data, "(%02x) nospec\n", insn->code);
295 			verbose(cbs->private_data, "BUG_st_%02x\n", insn->code);
298 		if (BPF_MODE(insn->code) != BPF_MEM && BPF_MODE(insn->code) != BPF_MEMSX) {
299 			verbose(cbs->private_data, "BUG_ldx_%02x\n", insn->code);
303 			insn->code, insn->dst_reg,
304 			BPF_MODE(insn->code) == BPF_MEM ?
305 				 bpf_ldst_string[BPF_SIZE(insn->code) >> 3] :
306 				 bpf_ldsx_string[BPF_SIZE(insn->code) >> 3],
309 		if (BPF_MODE(insn->code) == BPF_ABS) {
311 				insn->code,
312 				bpf_ldst_string[BPF_SIZE(insn->code) >> 3],
314 		} else if (BPF_MODE(insn->code) == BPF_IND) {
316 				insn->code,
317 				bpf_ldst_string[BPF_SIZE(insn->code) >> 3],
319 		} else if (BPF_MODE(insn->code) == BPF_IMM &&
320 			   BPF_SIZE(insn->code) == BPF_DW) {
333 				insn->code, insn->dst_reg,
337 			verbose(cbs->private_data, "BUG_ld_%02x\n", insn->code);
341 		u8 opcode = BPF_OP(insn->code);
348 					insn->code,
353 				verbose(cbs->private_data, "(%02x) call %s#%d\n", insn->code,
358 		} else if (insn->code == (BPF_JMP | BPF_JA)) {
360 				insn->code, insn->off);
361 		} else if (insn->code == (BPF_JMP | BPF_JCOND) &&
364 				insn->code, insn->off);
365 		} else if (insn->code == (BPF_JMP32 | BPF_JA)) {
367 				insn->code, insn->imm);
368 		} else if (insn->code == (BPF_JMP | BPF_EXIT)) {
369 			verbose(cbs->private_data, "(%02x) exit\n", insn->code);
370 		} else if (BPF_SRC(insn->code) == BPF_X) {
373 				insn->code, class == BPF_JMP32 ? 'w' : 'r',
375 				bpf_jmp_string[BPF_OP(insn->code) >> 4],
381 				insn->code, class == BPF_JMP32 ? 'w' : 'r',
383 				bpf_jmp_string[BPF_OP(insn->code) >> 4],
388 			insn->code, bpf_class_string[class]);