mirror of
https://github.com/jerryscript-project/jerryscript.git
synced 2025-12-15 16:29:21 +00:00
39275c5dd2
Added a python tool which finds the smallest possible size of JerryHeap without failing to run the given js file. JerryScript-DCO-1.0-Signed-off-by: Tamas Keri tkeri@inf.u-szeged.hu
123 lines
3.4 KiB
Python
Executable File
123 lines
3.4 KiB
Python
Executable File
#!/usr/bin/env python
|
|
|
|
# Copyright JS Foundation and other contributors, http://js.foundation
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
import argparse
|
|
import json
|
|
import os
|
|
import subprocess
|
|
import sys
|
|
|
|
from subprocess import Popen, PIPE, STDOUT
|
|
|
|
|
|
BIN_JERRY = os.path.join(os.getcwd(), 'build/bin/jerry')
|
|
FLAG_CLEAN = '--clean'
|
|
FLAG_DEBUG = '--debug'
|
|
FLAG_HEAPLIMIT = '--mem-heap'
|
|
JERRY_BUILDER = os.path.join(os.getcwd(), 'tools/build.py')
|
|
TEST_DIR = os.path.join(os.getcwd(), 'tests')
|
|
|
|
def get_args():
|
|
""" Parse input arguments. """
|
|
parser = argparse.ArgumentParser(description='Finds the smallest possible \
|
|
size of JerryHeap without failing to run the given js file')
|
|
parser.add_argument('testfile')
|
|
parser.add_argument('--heapsize', type=int, default=512,
|
|
help='Set the limit of the first heapsize')
|
|
|
|
parser.add_argument('--buildtype', type=str,
|
|
help='debug build, default release build')
|
|
|
|
script_args = parser.parse_args()
|
|
|
|
return script_args
|
|
|
|
|
|
def is_exe(fpath):
|
|
""" Check whether the file is exist. """
|
|
return os.path.isfile(fpath)
|
|
|
|
|
|
def init(opts):
|
|
if not is_exe(JERRY_BUILDER):
|
|
sys.exit("Builder script isn't a file!")
|
|
if not is_exe(opts.testfile):
|
|
sys.exit("Testfile isn't a file!")
|
|
|
|
|
|
def build_bin(heapsize, opts):
|
|
""" Run tools/build.py script """
|
|
hsize = str(heapsize)
|
|
if opts.buildtype == 'debug':
|
|
subprocess.call([JERRY_BUILDER, FLAG_CLEAN, FLAG_HEAPLIMIT, \
|
|
hsize, FLAG_DEBUG])
|
|
else:
|
|
subprocess.call([JERRY_BUILDER, FLAG_CLEAN, FLAG_HEAPLIMIT, hsize])
|
|
|
|
|
|
def get_output(cwd, cmd):
|
|
""" Run the given command and return with the output. """
|
|
process = Popen(cmd, stdout=PIPE, stderr=STDOUT, cwd=cwd)
|
|
|
|
output = process.communicate()[0]
|
|
exitcode = process.returncode
|
|
|
|
return output, exitcode
|
|
|
|
|
|
def run_test(opts):
|
|
""" Run the testfile for output and exitcode. """
|
|
try:
|
|
testfile = os.path.abspath(opts.testfile)
|
|
run_cmd = [BIN_JERRY, testfile]
|
|
output, ret = get_output(TEST_DIR, run_cmd)
|
|
except subprocess.CalledProcessError as err:
|
|
output = err.output
|
|
ret = err.returncode
|
|
|
|
return opts.testfile, output, ret
|
|
|
|
|
|
def heap_limit(opts):
|
|
""" Find the minimal size of jerryheap to pass """
|
|
goodheap = opts.heapsize
|
|
lowheap = 0
|
|
hiheap = opts.heapsize
|
|
|
|
while lowheap < hiheap:
|
|
build_bin(hiheap, opts)
|
|
assert is_exe(BIN_JERRY), 'Binary file not exist'
|
|
|
|
testfile, output, exitcode = run_test(opts)
|
|
if exitcode != 0:
|
|
lowheap = hiheap
|
|
hiheap = (lowheap + goodheap) / 2
|
|
else:
|
|
goodheap = hiheap
|
|
hiheap = (lowheap + hiheap) / 2
|
|
|
|
return { 'testfile': testfile, 'heaplimit to pass': goodheap }
|
|
|
|
|
|
def main(options):
|
|
init(options)
|
|
result = heap_limit(options)
|
|
print(json.dumps(result, indent=4))
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main(get_args())
|