1#! /usr/bin/python 2# 3# Print a report on which libgccjit.so symbols are used in which test 4# cases, and which lack test coverage. Tested with Python 2.7 and 3.2 5# To be run from the root directory of the source tree. 6# 7# Copyright (C) 2014 Free Software Foundation, Inc. 8# Written by David Malcolm <dmalcolm@redhat.com>. 9# 10# This script is Free Software, and it can be copied, distributed and 11# modified as defined in the GNU General Public License. A copy of 12# its license can be downloaded from http://www.gnu.org/copyleft/gpl.html 13 14from collections import Counter 15import glob 16import re 17import sys 18 19def parse_map_file(path): 20 """ 21 Parse libgccjit.map, returning the symbols in the API as a list of str. 22 """ 23 syms = [] 24 with open(path) as f: 25 for line in f: 26 m = re.match('^\s+([a-z_]+);$', line) 27 if m: 28 syms.append(m.group(1)) 29 return syms 30 31def parse_test_case(path): 32 """ 33 Locate all symbol-like things in a C test case, yielding 34 them as a sequence of str. 35 """ 36 with open(path) as f: 37 for line in f: 38 for m in re.finditer('([_A-Za-z][_A-Za-z0-9]*)', line): 39 yield m.group(1) 40 41def find_test_cases(): 42 for path in glob.glob('gcc/testsuite/jit.dg/*.[ch]'): 43 yield path 44 45api_syms = parse_map_file('gcc/jit/libgccjit.map') 46 47syms_in_test_cases = {} 48for path in find_test_cases(): 49 syms_in_test_cases[path] = list(parse_test_case(path)) 50 51uses = Counter() 52for sym in sorted(api_syms): 53 print('symbol: %s' % sym) 54 uses[sym] = 0 55 for path in syms_in_test_cases: 56 count = syms_in_test_cases[path].count(sym) 57 uses[sym] += count 58 if count: 59 print(' uses in %s: %i' % (path, count)) 60 if uses[sym] == 0: 61 print(' NEVER USED') 62 sys.stdout.write('\n') 63 64layout = '%40s %5s %s' 65print(layout % ('SYMBOL', 'USES', 'HISTOGRAM')) 66for sym, count in uses.most_common(): 67 print(layout % (sym, count, '*' * count if count else 'UNUSED')) 68