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import os
from rpython.tool.udir import udir
import tempfile
from rpython.jit.backend.arm.test.support import AS
class ASMInstruction(object):
asm_opts = '-mfpu=neon -mcpu=cortex-a8 -march=armv7-a'
body = """.section .text
.arm
_start: .global _start
.global main
b main
main:
.ascii "START"
%s
.ascii "END"
"""
begin_tag = 'START'
end_tag = 'END'
base_name = 'test_%d.asm'
index = 0
def __init__(self, instr):
self.instr = instr
self.file = udir.join(self.base_name % self.index)
while self.file.check():
self.index += 1
self.file = udir.join(self.base_name % self.index)
def encode(self):
f = open("%s/a.out" % (udir),'rb')
data = f.read()
#f.close()
i = data.find(self.begin_tag)
assert i>=0
j = data.find(self.end_tag, i)
assert j>=0
as_code = data[i+len(self.begin_tag):j]
return as_code
def assemble(self, *args):
res = self.body % (self.instr)
self.file.write(res)
os.system("%s --fatal-warnings %s %s -o %s/a.out" % (AS, self.asm_opts, self.file, udir))
#def __del__(self):
# self.file.close()
def assemble(instr):
a = ASMInstruction(instr)
a.assemble(instr)
return a.encode()
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