#!/usr/bin/env python# add symbolic names to read_msr / write_msr in trace# decode_msr msr-index.h < traceimport sysimport re msrs = dict() with open(sys.argv[1] if len(sys.argv) > 1 else "msr-index.h", "r") as f:	for j in f:		m = re.match(r'#define (MSR_\w+)\s+(0x[0-9a-fA-F]+)', j)		if m:			msrs[int(m.group(2), 16)] = m.group(1) extra_ranges = (	( "MSR_LASTBRANCH_%d_FROM_IP", 0x680, 0x69F ),	( "MSR_LASTBRANCH_%d_TO_IP", 0x6C0, 0x6DF ),	( "LBR_INFO_%d", 0xdc0, 0xddf ),) for j in sys.stdin:	m = re.search(r'(read|write)_msr:\s+([0-9a-f]+)', j)	if m:		r = None		num = int(m.group(2), 16)		if num in msrs:			r = msrs[num]		else:			for er in extra_ranges:				if er[1] <= num <= er[2]:					r = er[0] % (num - er[1],)					break		if r:			j = j.replace(" " + m.group(2), " " + r + "(" + m.group(2) + ")")	print(j)