314 static int imm_dec(struct pt_ild *ild, uint8_t length)  in imm_dec()  argument
322 		if (ild->max_bytes <= length)  in imm_dec()
325 		ild->nominal_opcode = get_byte(ild, length);  in imm_dec()
326 		return length + 1;  in imm_dec()
333 	length += ild->imm1_bytes;  in imm_dec()
334 	length += ild->imm2_bytes;  in imm_dec()
335 	if (ild->max_bytes < length)  in imm_dec()
338 	return length;  in imm_dec()
406 static int disp_dec(struct pt_ild *ild, uint8_t length)  in disp_dec()  argument
420 		return imm_dec(ild, length);  in disp_dec()
422 	if (length + disp_bytes > ild->max_bytes)  in disp_dec()
427 	ild->disp_pos = length;  in disp_dec()
429 	return imm_dec(ild, length + disp_bytes);  in disp_dec()
432 static int sib_dec(struct pt_ild *ild, uint8_t length)  in sib_dec()  argument
439 	if (ild->max_bytes <= length)  in sib_dec()
442 	sib = get_byte(ild, length);  in sib_dec()
446 	return disp_dec(ild, length + 1);  in sib_dec()
449 static int modrm_dec(struct pt_ild *ild, uint8_t length)  in modrm_dec()  argument
468 		return disp_dec(ild, length);  in modrm_dec()
471 	if (length >= ild->max_bytes)  in modrm_dec()
474 	ild->modrm_byte = get_byte(ild, length);  in modrm_dec()
488 			return sib_dec(ild, length + 1);  in modrm_dec()
491 	return disp_dec(ild, length + 1);  in modrm_dec()
494 static inline int get_next_as_opcode(struct pt_ild *ild, uint8_t length)  in get_next_as_opcode()  argument
499 	if (ild->max_bytes <= length)  in get_next_as_opcode()
502 	ild->nominal_opcode = get_byte(ild, length);  in get_next_as_opcode()
504 	return modrm_dec(ild, length + 1);  in get_next_as_opcode()
507 static int opcode_dec(struct pt_ild *ild, uint8_t length)  in opcode_dec()  argument
515 	b = get_byte(ild, length);  in opcode_dec()
520 		return modrm_dec(ild, length + 1);  in opcode_dec()
523 	length++;		/* eat the 0x0F */  in opcode_dec()
525 	if (ild->max_bytes <= length)  in opcode_dec()
529 	m = get_byte(ild, length);  in opcode_dec()
533 		return get_next_as_opcode(ild, length + 1);  in opcode_dec()
538 		return get_next_as_opcode(ild, length + 1);  in opcode_dec()
542 		return get_next_as_opcode(ild, length + 1);  in opcode_dec()
550 		return modrm_dec(ild, length + 1);  in opcode_dec()
555 		return modrm_dec(ild, length + 1);  in opcode_dec()
559 typedef int (*prefix_decoder)(struct pt_ild *ild, uint8_t length, uint8_t rex);
562 static inline int prefix_decode(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_decode()  argument
569 	if (ild->max_bytes <= length)  in prefix_decode()
572 	byte = get_byte(ild, length);  in prefix_decode()
574 	return prefix_table[byte](ild, length, rex);  in prefix_decode()
577 static inline int prefix_next(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_next()  argument
579 	return prefix_decode(ild, length + 1, rex);  in prefix_next()
582 static int prefix_osz(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_osz()  argument
591 	return prefix_next(ild, length, 0);  in prefix_osz()
594 static int prefix_asz(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_asz()  argument
603 	return prefix_next(ild, length, 0);  in prefix_asz()
606 static int prefix_lock(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_lock()  argument
615 	return prefix_next(ild, length, 0);  in prefix_lock()
618 static int prefix_f2(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_f2()  argument
628 	return prefix_next(ild, length, 0);  in prefix_f2()
631 static int prefix_f3(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_f3()  argument
641 	return prefix_next(ild, length, 0);  in prefix_f3()
644 static int prefix_ignore(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_ignore()  argument
648 	return prefix_next(ild, length, 0);  in prefix_ignore()
651 static int prefix_done(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_done()  argument
661 	return opcode_dec(ild, length);  in prefix_done()
664 static int prefix_rex(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_rex()  argument
672 		return prefix_next(ild, length, get_byte(ild, length));  in prefix_rex()
674 		return opcode_dec(ild, length);  in prefix_rex()
677 static inline int prefix_vex_done(struct pt_ild *ild, uint8_t length)  in prefix_vex_done()  argument
682 	ild->nominal_opcode = get_byte(ild, length);  in prefix_vex_done()
684 	return modrm_dec(ild, length + 1);  in prefix_vex_done()
687 static int prefix_vex_c5(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_vex_c5()  argument
700 	if (max_bytes <= (length + 1))  in prefix_vex_c5()
703 	p1 = get_byte(ild, length + 1);  in prefix_vex_c5()
707 		return opcode_dec(ild, length);  in prefix_vex_c5()
713 	if (max_bytes < (length + 3))  in prefix_vex_c5()
723 	length += 2;  in prefix_vex_c5()
724 	return prefix_vex_done(ild, length);  in prefix_vex_c5()
727 static int prefix_vex_c4(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_vex_c4()  argument
740 	if (max_bytes <= (length + 1))  in prefix_vex_c4()
743 	p1 = get_byte(ild, length + 1);  in prefix_vex_c4()
747 		return opcode_dec(ild, length);  in prefix_vex_c4()
753 	if (max_bytes < (length + 4))  in prefix_vex_c4()
756 	p2 = get_byte(ild, length + 2);  in prefix_vex_c4()
773 	length += 3;  in prefix_vex_c4()
774 	return prefix_vex_done(ild, length);  in prefix_vex_c4()
777 static int prefix_evex(struct pt_ild *ild, uint8_t length, uint8_t rex)  in prefix_evex()  argument
790 	if (max_bytes <= (length + 1))  in prefix_evex()
793 	p1 = get_byte(ild, length + 1);  in prefix_evex()
797 		return opcode_dec(ild, length);  in prefix_evex()
803 	if (max_bytes < (length + 5))  in prefix_evex()
806 	p2 = get_byte(ild, length + 2);  in prefix_evex()
821 	length += 4;  in prefix_evex()
822 	return prefix_vex_done(ild, length);  in prefix_evex()