275 static int imm_dec(struct pt_ild *ild, uint8_t length)  in imm_dec()  argument
283 		if (ild->max_bytes <= length)  in imm_dec()
286 		ild->nominal_opcode = get_byte(ild, length);  in imm_dec()
287 		return length + 1;  in imm_dec()
294 	length += ild->imm1_bytes;  in imm_dec()
295 	length += ild->imm2_bytes;  in imm_dec()
296 	if (ild->max_bytes < length)  in imm_dec()
299 	return length;  in imm_dec()
367 static int disp_dec(struct pt_ild *ild, uint8_t length)  in disp_dec()  argument
381 		return imm_dec(ild, length);  in disp_dec()
383 	if (length + disp_bytes > ild->max_bytes)  in disp_dec()
388 	ild->disp_pos = length;  in disp_dec()
390 	return imm_dec(ild, length + disp_bytes);  in disp_dec()
393 static int sib_dec(struct pt_ild *ild, uint8_t length)  in sib_dec()  argument
400 	if (ild->max_bytes <= length)  in sib_dec()
403 	sib = get_byte(ild, length);  in sib_dec()
407 	return disp_dec(ild, length + 1);  in sib_dec()
410 static int modrm_dec(struct pt_ild *ild, uint8_t length)  in modrm_dec()  argument
429 		return disp_dec(ild, length);  in modrm_dec()
432 	if (length >= ild->max_bytes)  in modrm_dec()
435 	ild->modrm_byte = get_byte(ild, length);  in modrm_dec()
449 			return sib_dec(ild, length + 1);  in modrm_dec()
452 	return disp_dec(ild, length + 1);  in modrm_dec()
455 static inline int get_next_as_opcode(struct pt_ild *ild, uint8_t length)  in get_next_as_opcode()  argument
460 	if (ild->max_bytes <= length)  in get_next_as_opcode()
463 	ild->nominal_opcode = get_byte(ild, length);  in get_next_as_opcode()
465 	return modrm_dec(ild, length + 1);  in get_next_as_opcode()
468 static int opcode_dec(struct pt_ild *ild, uint8_t length)  in opcode_dec()  argument
476 	b = get_byte(ild, length);  in opcode_dec()
481 		return modrm_dec(ild, length + 1);  in opcode_dec()
484 	length++;		/* eat the 0x0F */  in opcode_dec()
486 	if (ild->max_bytes <= length)  in opcode_dec()
490 	m = get_byte(ild, length);  in opcode_dec()
494 		return get_next_as_opcode(ild, length + 1);  in opcode_dec()
499 		return get_next_as_opcode(ild, length + 1);  in opcode_dec()
503 		return get_next_as_opcode(ild, length + 1);  in opcode_dec()
511 		return modrm_dec(ild, length + 1);  in opcode_dec()
516 		return modrm_dec(ild, length + 1);  in opcode_dec()
520 typedef int (*prefix_decoder)(struct pt_ild *ild, uint8_t length, uint8_t rex);
522 static int prefix_osz(struct pt_ild *ild, uint8_t length, uint8_t rex);
523 static int prefix_asz(struct pt_ild *ild, uint8_t length, uint8_t rex);
524 static int prefix_lock(struct pt_ild *ild, uint8_t length, uint8_t rex);
525 static int prefix_f2(struct pt_ild *ild, uint8_t length, uint8_t rex);
526 static int prefix_f3(struct pt_ild *ild, uint8_t length, uint8_t rex);
527 static int prefix_rex(struct pt_ild *ild, uint8_t length, uint8_t rex);
528 static int prefix_vex_c4(struct pt_ild *ild, uint8_t length, uint8_t rex);
529 static int prefix_vex_c5(struct pt_ild *ild, uint8_t length, uint8_t rex);
530 static int prefix_evex(struct pt_ild *ild, uint8_t length, uint8_t rex);
531 static int prefix_ignore(struct pt_ild *ild, uint8_t length, uint8_t rex);
532 static int prefix_done(struct pt_ild *ild, uint8_t length, uint8_t rex);
808 static inline int prefix_decode(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_decode()  argument
815 	if (ild->max_bytes <= length)  in prefix_decode()
818 	byte = get_byte(ild, length);  in prefix_decode()
820 	return prefix_table[byte](ild, length, rex);  in prefix_decode()
823 static inline int prefix_next(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_next()  argument
825 	return prefix_decode(ild, length + 1, rex);  in prefix_next()
828 static int prefix_osz(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_osz()  argument
837 	return prefix_next(ild, length, 0);  in prefix_osz()
840 static int prefix_asz(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_asz()  argument
849 	return prefix_next(ild, length, 0);  in prefix_asz()
852 static int prefix_lock(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_lock()  argument
861 	return prefix_next(ild, length, 0);  in prefix_lock()
864 static int prefix_f2(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_f2()  argument
874 	return prefix_next(ild, length, 0);  in prefix_f2()
877 static int prefix_f3(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_f3()  argument
887 	return prefix_next(ild, length, 0);  in prefix_f3()
890 static int prefix_ignore(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_ignore()  argument
894 	return prefix_next(ild, length, 0);  in prefix_ignore()
897 static int prefix_done(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_done()  argument
907 	return opcode_dec(ild, length);  in prefix_done()
910 static int prefix_rex(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_rex()  argument
918 		return prefix_next(ild, length, get_byte(ild, length));  in prefix_rex()
920 		return opcode_dec(ild, length);  in prefix_rex()
923 static inline int prefix_vex_done(struct pt_ild *ild, uint8_t length)  in prefix_vex_done()  argument
928 	ild->nominal_opcode = get_byte(ild, length);  in prefix_vex_done()
930 	return modrm_dec(ild, length + 1);  in prefix_vex_done()
933 static int prefix_vex_c5(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_vex_c5()  argument
946 	if (max_bytes <= (length + 1))  in prefix_vex_c5()
949 	p1 = get_byte(ild, length + 1);  in prefix_vex_c5()
953 		return opcode_dec(ild, length);  in prefix_vex_c5()
959 	if (max_bytes < (length + 3))  in prefix_vex_c5()
969 	length += 2;  in prefix_vex_c5()
970 	return prefix_vex_done(ild, length);  in prefix_vex_c5()
973 static int prefix_vex_c4(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_vex_c4()  argument
986 	if (max_bytes <= (length + 1))  in prefix_vex_c4()
989 	p1 = get_byte(ild, length + 1);  in prefix_vex_c4()
993 		return opcode_dec(ild, length);  in prefix_vex_c4()
999 	if (max_bytes < (length + 4))  in prefix_vex_c4()
1002 	p2 = get_byte(ild, length + 2);  in prefix_vex_c4()
1019 	length += 3;  in prefix_vex_c4()
1020 	return prefix_vex_done(ild, length);  in prefix_vex_c4()
1023 static int prefix_evex(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_evex()  argument
1036 	if (max_bytes <= (length + 1))  in prefix_evex()
1039 	p1 = get_byte(ild, length + 1);  in prefix_evex()
1043 		return opcode_dec(ild, length);  in prefix_evex()
1049 	if (max_bytes < (length + 5))  in prefix_evex()
1052 	p2 = get_byte(ild, length + 2);  in prefix_evex()
1067 	length += 4;  in prefix_evex()
1068 	return prefix_vex_done(ild, length);  in prefix_evex()