gecko/memory/replace/dmd/check_test_output.py
Nicholas Nethercote 55e087d8b5 Bug 1035570 (part 1) - DMD: Rename TraceRecord as Record. r=erahm.
DMD used to have "stack trace records" and "stack frame records". Bug 1013011
removed the latter, and now "stack trace record" and |TraceRecord| are a bit
unwieldy. This patch changes them to "heap block record" and |Record|.

--HG--
extra : rebase_source : 1d674db9866221f6a170d0eb05aa77fc9f4a1924
2014-06-05 18:57:02 -07:00

117 lines
3.4 KiB
Python
Executable File

#! /usr/bin/python
"""This script takes the file produced by DMD's test mode and checks its
correctness.
It produces the following output files: $TMP/test-{fixed,filtered,diff}.dmd.
It runs the appropriate fix* script to get nice stack traces. It also
filters out platform-specific details from the test output file.
Note: you must run this from the same directory that you invoked DMD's test
mode, otherwise the fix* script will not work properly, because some of the
paths in the test output are relative.
"""
from __future__ import print_function
import os
import platform
import re
import subprocess
import sys
import tempfile
def main():
# Arguments
if (len(sys.argv) != 3):
print("usage:", sys.argv[0], "<topsrcdir> <test.dmd>")
sys.exit(1)
srcdir = sys.argv[1]
# Filenames
tempdir = tempfile.gettempdir()
in_name = sys.argv[2]
fixed_name = tempdir + os.sep + "test-fixed.dmd"
filtered_name = tempdir + os.sep + "test-filtered.dmd"
diff_name = tempdir + os.sep + "test-diff.dmd"
expected_name = srcdir + os.sep + \
"memory/replace/dmd/test-expected.dmd"
# Fix stack traces
print("fixing output to", fixed_name)
sysname = platform.system()
if sysname == "Linux":
fix = srcdir + os.sep + "tools/rb/fix-linux-stack.pl"
elif sysname == "Darwin":
fix = srcdir + os.sep + "tools/rb/fix_macosx_stack.py"
else:
print("unhandled platform: " + sysname, file=sys.stderr)
sys.exit(1)
subprocess.call(fix, stdin=open(in_name, "r"),
stdout=open(fixed_name, "w"))
# Filter output
# In heap block records we filter out most stack frames. The only thing
# we leave behind is a "DMD.cpp" entry if we see one or more frames that
# have DMD.cpp in them. There is simply too much variation to do anything
# better than that.
print("filtering output to", filtered_name)
with open(fixed_name, "r") as fin, \
open(filtered_name, "w") as fout:
test_frame_re = re.compile(r".*(DMD.cpp)")
for line in fin:
if re.match(r" (Allocated at|Reported( again)? at)", line):
# It's a heap block record.
print(line, end='', file=fout)
# Filter the stack trace -- print a single line if we see one
# or more frames involving DMD.cpp.
seen_DMD_frame = False
for frame in fin:
if re.match(r" ", frame):
m = test_frame_re.match(frame)
if m:
seen_DMD_frame = True
else:
# We're past the stack trace.
if seen_DMD_frame:
print(" ... DMD.cpp", file=fout)
print(frame, end='', file=fout)
break
else:
# A line that needs no special handling. Copy it through.
print(line, end='', file=fout)
# Compare with expected output
print("diffing output to", diff_name)
ret = subprocess.call(["diff", "-u", expected_name, filtered_name],
stdout=open(diff_name, "w"))
if ret == 0:
print("test PASSED")
else:
print("test FAILED (did you remember to run this script and Firefox "
"in the same directory?)")
if __name__ == "__main__":
main()