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#!/usr/bin/env python2
import os
import sys
import subprocess
hostname = 'localhost'
(r, w) = os.pipe()
args = sys.argv
# Get debugserver, lldb-mi and FileCheck executables' paths with arguments.
debugserver = ' '.join([args[1], '--pipe', str(w), hostname + ':0'])
lldbmi = args[2]
test_file = args[3]
filecheck = 'FileCheck ' + test_file
# Run debugserver, lldb-mi and FileCheck.
debugserver_proc = subprocess.Popen(debugserver.split())
lldbmi_proc = subprocess.Popen(lldbmi, stdin=subprocess.PIPE,
stdout=subprocess.PIPE, shell=True)
filecheck_proc = subprocess.Popen(filecheck, stdin=lldbmi_proc.stdout,
shell=True)
# Get a tcp port chosen by debugserver.
# The number quite big to get lldb-server's output and to not hang.
bytes_to_read = 10
port_bytes = os.read(r, bytes_to_read)
port = str(port_bytes.decode('utf-8').strip('\x00'))
with open(test_file, 'r') as f:
# Replace '$PORT' with a free port number and pass
# test's content to lldb-mi.
lldbmi_proc.stdin.write(f.read().replace('$PORT', port))
lldbmi_proc.wait()
filecheck_proc.wait()
debugserver_proc.kill()
exit(filecheck_proc.returncode)
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