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#!/usr/bin/env python -tt
# -*- python -*-
# Convert gas testsuite file to NASM test asm file
# usage >
# python gas2nasm.py -i input_gas_file -o output_nasm_file -b bits
# e.g. python gas2nasm.py -i x86-64-avx512f-intel.d -o avx512f.asm -b 64
import sys
import os
import optparse
import re
def setup():
parser = optparse.OptionParser()
parser.add_option('-i', dest='input', action='store',
default="",
help='Name for input gas testsuite file.')
parser.add_option('-o', dest='output', action='store',
default="",
help='Name for output NASM test asm file.')
parser.add_option('-b', dest='bits', action='store',
default="",
help='Bits for output ASM file.')
parser.add_option('-r', dest='raw_output', action='store',
default="",
help='Name for raw output bytes in text')
(options, args) = parser.parse_args()
return options
def read(options):
with open(options.input, 'rb') as f:
recs = []
for line in f:
if line[0] == '[':
d = []
strr = line[16:].partition(' ')
if strr[1] == '':
strr = line[16:].partition('\t')
l = strr[0].strip()
r = strr[2].strip()
d.append(l)
d.append(r)
recs.append(d)
return recs
def commas(recs):
replace_tbl = {' PTR':'', '\\':'', 'MM':'', '{':'\{', '}':'\}', 'XWORD':'OWORD'}
reccommas = []
for insn in recs:
new = []
byte = '0x' + insn[0].replace(' ', ', 0x')
for rep in replace_tbl.keys():
insn[1] = insn[1].replace(rep, replace_tbl[rep])
mnemonic = insn[1]
# gas size specifier for gather and scatter insturctions seems wrong. just remove them.
if 'gather' in insn[1] or 'scatter' in insn[1]:
mnemonic = mnemonic.replace('ZWORD', '')
new.append(byte)
new.append(mnemonic)
reccommas.append(new)
return reccommas
# The spaces reserved here can be adjusted according to the output string length.
# maxlen printed out at the end of the process will give a hint for it.
outstrfmt = "testcase\t{ %-70s }, { %-60s }\n"
macro = "%macro testcase 2\n %ifdef BIN\n db %1\n %endif\n %ifdef SRC\n %2\n %endif\n%endmacro\n\n\n"
def write(data, options):
if options.output:
with open(options.output, 'wb') as out:
out.write(macro)
if options.bits:
out.write('bits ' + options.bits + '\n\n')
for insn in data:
outstr = outstrfmt % tuple(insn)
out.write(outstr)
def write_rawbytes(data, options):
if options.raw_output:
with open(options.raw_output, 'wb') as out:
for insn in data:
out.write(insn[0] + '\n')
if __name__ == "__main__":
options = setup()
recs = read(options)
write_rawbytes(recs, options)
recs = commas(recs)
write(recs, options)
maxlen = [0,0,0,0,0,0,0,0]
for insn in recs:
#print insn[0] + '\t<-\t' + insn[1]
print outstrfmt[:-1] % tuple(insn)
for i, strstr in enumerate(insn):
if maxlen[i] < len(strstr): maxlen[i] = len(strstr)
print maxlen
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