diff options
Diffstat (limited to 'gdb/contrib/test_pubnames_and_indexes.py')
| -rw-r--r-- | gdb/contrib/test_pubnames_and_indexes.py | 303 |
1 files changed, 160 insertions, 143 deletions
diff --git a/gdb/contrib/test_pubnames_and_indexes.py b/gdb/contrib/test_pubnames_and_indexes.py index 67e2430..cc767a2 100644 --- a/gdb/contrib/test_pubnames_and_indexes.py +++ b/gdb/contrib/test_pubnames_and_indexes.py @@ -39,7 +39,7 @@ to those that gdb produces. Finally, check that all strings are canonicalized identically. """ -__author__ = 'saugustine@google.com (Sterling Augustine)' +__author__ = "saugustine@google.com (Sterling Augustine)" import os import subprocess @@ -49,159 +49,176 @@ OBJCOPY = None READELF = None GDB = None + def get_pub_info(filename, readelf_option): - """Parse and return all the pubnames or pubtypes produced by readelf with the - given option. - """ - readelf = subprocess.Popen([READELF, '--debug-dump=' + readelf_option, - filename], stdout=subprocess.PIPE) - pubnames = [] - - in_list = False; - for line in readelf.stdout: - fields = line.split(None, 1) - if (len(fields) == 2 and fields[0] == 'Offset' - and fields[1].strip() == 'Name'): - in_list = True - # Either a blank-line or a new Length field terminates the current section. - elif (len(fields) == 0 or fields[0] == 'Length:'): - in_list = False; - elif (in_list): - pubnames.append(fields[1].strip()) - - readelf.wait() - return pubnames + """Parse and return all the pubnames or pubtypes produced by readelf with the + given option. + """ + readelf = subprocess.Popen( + [READELF, "--debug-dump=" + readelf_option, filename], stdout=subprocess.PIPE + ) + pubnames = [] + + in_list = False + for line in readelf.stdout: + fields = line.split(None, 1) + if len(fields) == 2 and fields[0] == "Offset" and fields[1].strip() == "Name": + in_list = True + # Either a blank-line or a new Length field terminates the current section. + elif len(fields) == 0 or fields[0] == "Length:": + in_list = False + elif in_list: + pubnames.append(fields[1].strip()) + + readelf.wait() + return pubnames def get_gdb_index(filename): - """Use readelf to dump the gdb index and collect the types and names""" - readelf = subprocess.Popen([READELF, '--debug-dump=gdb_index', - filename], stdout=subprocess.PIPE) - index_symbols = [] - symbol_table_started = False - for line in readelf.stdout: - if (line == 'Symbol table:\n'): - symbol_table_started = True; - elif (symbol_table_started): - # Readelf prints gdb-index lines formatted like so: - # [ 4] two::c2<double>::c2: 0 - # So take the string between the first close bracket and the last colon. - index_symbols.append(line[line.find(']') + 2: line.rfind(':')]) - - readelf.wait() - return index_symbols + """Use readelf to dump the gdb index and collect the types and names""" + readelf = subprocess.Popen( + [READELF, "--debug-dump=gdb_index", filename], stdout=subprocess.PIPE + ) + index_symbols = [] + symbol_table_started = False + for line in readelf.stdout: + if line == "Symbol table:\n": + symbol_table_started = True + elif symbol_table_started: + # Readelf prints gdb-index lines formatted like so: + # [ 4] two::c2<double>::c2: 0 + # So take the string between the first close bracket and the last colon. + index_symbols.append(line[line.find("]") + 2 : line.rfind(":")]) + + readelf.wait() + return index_symbols def CheckSets(list0, list1, name0, name1): - """Report any setwise differences between the two lists""" - - if len(list0) == 0 or len(list1) == 0: + """Report any setwise differences between the two lists""" + + if len(list0) == 0 or len(list1) == 0: + return False + + difference0 = set(list0) - set(list1) + if len(difference0) != 0: + print "Elements in " + name0 + " but not " + name1 + ": (", + print len(difference0), + print ")" + for element in difference0: + print " " + element + + difference1 = set(list1) - set(list0) + if len(difference1) != 0: + print "Elements in " + name1 + " but not " + name0 + ": (", + print len(difference1), + print ")" + for element in difference1: + print " " + element + + if len(difference0) != 0 or len(difference1) != 0: + return True + + print name0 + " and " + name1 + " are identical." return False - difference0 = set(list0) - set(list1) - if len(difference0) != 0: - print "Elements in " + name0 + " but not " + name1 + ": (", - print len(difference0), - print ")" - for element in difference0: - print " " + element - - difference1 = set(list1) - set(list0) - if len(difference1) != 0: - print "Elements in " + name1 + " but not " + name0 + ": (", - print len(difference1), - print ")" - for element in difference1: - print " " + element - - if (len(difference0) != 0 or len(difference1) != 0): - return True - - print name0 + " and " + name1 + " are identical." - return False - def find_executables(): - """Find the copies of readelf, objcopy and gdb to use.""" - # Executable finding logic follows cc-with-index.sh - global READELF - READELF = os.getenv('READELF') - if READELF is None: - READELF = 'readelf' - global OBJCOPY - OBJCOPY = os.getenv('OBJCOPY') - if OBJCOPY is None: - OBJCOPY = 'objcopy' - - global GDB - GDB = os.getenv('GDB') - if (GDB is None): - if os.path.isfile('./gdb') and os.access('./gdb', os.X_OK): - GDB = './gdb' - elif os.path.isfile('../gdb') and os.access('../gdb', os.X_OK): - GDB = '../gdb' - elif os.path.isfile('../../gdb') and os.access('../../gdb', os.X_OK): - GDB = '../../gdb' - else: - # Punt and use the gdb in the path. - GDB = 'gdb' + """Find the copies of readelf, objcopy and gdb to use.""" + # Executable finding logic follows cc-with-index.sh + global READELF + READELF = os.getenv("READELF") + if READELF is None: + READELF = "readelf" + global OBJCOPY + OBJCOPY = os.getenv("OBJCOPY") + if OBJCOPY is None: + OBJCOPY = "objcopy" + + global GDB + GDB = os.getenv("GDB") + if GDB is None: + if os.path.isfile("./gdb") and os.access("./gdb", os.X_OK): + GDB = "./gdb" + elif os.path.isfile("../gdb") and os.access("../gdb", os.X_OK): + GDB = "../gdb" + elif os.path.isfile("../../gdb") and os.access("../../gdb", os.X_OK): + GDB = "../../gdb" + else: + # Punt and use the gdb in the path. + GDB = "gdb" def main(argv): - """The main subprogram.""" - if len(argv) != 2: - print "Usage: test_pubnames_and_indexes.py <filename>" - sys.exit(2) - - find_executables(); - - # Get the index produced by Gold--It should have been built into the binary. - gold_index = get_gdb_index(argv[1]) - - # Collect the pubnames and types list - pubs_list = get_pub_info(argv[1], "pubnames") - pubs_list = pubs_list + get_pub_info(argv[1], "pubtypes") - - # Generate a .gdb_index with gdb - gdb_index_file = argv[1] + '.gdb-generated-index' - subprocess.check_call([OBJCOPY, '--remove-section', '.gdb_index', - argv[1], gdb_index_file]) - subprocess.check_call([GDB, '-batch', '-nx', gdb_index_file, - '-ex', 'save gdb-index ' + os.path.dirname(argv[1]), - '-ex', 'quit']) - subprocess.check_call([OBJCOPY, '--add-section', - '.gdb_index=' + gdb_index_file + '.gdb-index', - gdb_index_file]) - gdb_index = get_gdb_index(gdb_index_file) - os.remove(gdb_index_file) - os.remove(gdb_index_file + '.gdb-index') - - failed = False - gdb_index.sort() - gold_index.sort() - pubs_list.sort() - - # Find the differences between the various indices. - if len(gold_index) == 0: - print "Gold index is empty" - failed |= True - - if len(gdb_index) == 0: - print "Gdb index is empty" - failed |= True - - if len(pubs_list) == 0: - print "Pubs list is empty" - failed |= True - - failed |= CheckSets(gdb_index, gold_index, "gdb index", "gold index") - failed |= CheckSets(pubs_list, gold_index, "pubs list", "gold index") - failed |= CheckSets(pubs_list, gdb_index, "pubs list", "gdb index") - - if failed: - print "Test failed" - sys.exit(1) - - -if __name__ == '__main__': - main(sys.argv) + """The main subprogram.""" + if len(argv) != 2: + print "Usage: test_pubnames_and_indexes.py <filename>" + sys.exit(2) + + find_executables() + + # Get the index produced by Gold--It should have been built into the binary. + gold_index = get_gdb_index(argv[1]) + + # Collect the pubnames and types list + pubs_list = get_pub_info(argv[1], "pubnames") + pubs_list = pubs_list + get_pub_info(argv[1], "pubtypes") + + # Generate a .gdb_index with gdb + gdb_index_file = argv[1] + ".gdb-generated-index" + subprocess.check_call( + [OBJCOPY, "--remove-section", ".gdb_index", argv[1], gdb_index_file] + ) + subprocess.check_call( + [ + GDB, + "-batch", + "-nx", + gdb_index_file, + "-ex", + "save gdb-index " + os.path.dirname(argv[1]), + "-ex", + "quit", + ] + ) + subprocess.check_call( + [ + OBJCOPY, + "--add-section", + ".gdb_index=" + gdb_index_file + ".gdb-index", + gdb_index_file, + ] + ) + gdb_index = get_gdb_index(gdb_index_file) + os.remove(gdb_index_file) + os.remove(gdb_index_file + ".gdb-index") + + failed = False + gdb_index.sort() + gold_index.sort() + pubs_list.sort() + + # Find the differences between the various indices. + if len(gold_index) == 0: + print "Gold index is empty" + failed |= True + + if len(gdb_index) == 0: + print "Gdb index is empty" + failed |= True + + if len(pubs_list) == 0: + print "Pubs list is empty" + failed |= True + + failed |= CheckSets(gdb_index, gold_index, "gdb index", "gold index") + failed |= CheckSets(pubs_list, gold_index, "pubs list", "gold index") + failed |= CheckSets(pubs_list, gdb_index, "pubs list", "gdb index") + + if failed: + print "Test failed" + sys.exit(1) + + +if __name__ == "__main__": + main(sys.argv) |