Commit a9b2d18f authored by Robert Bradshaw's avatar Robert Bradshaw

Avoid more gdb errors for insufficient gdb.

parent fe17af96
......@@ -29,6 +29,49 @@ with open(codefile) as f:
# can't access the module anymore. Get it from sys.modules instead.
build_ext = sys.modules['Cython.Distutils.build_ext']
have_gdb = None
def test_gdb():
global have_gdb
if have_gdb is None:
try:
p = subprocess.Popen(['gdb', '-v'], stdout=subprocess.PIPE)
have_gdb = True
except OSError:
# gdb was not installed
have_gdb = False
else:
gdb_version = p.stdout.read().decode('ascii')
p.wait()
p.stdout.close()
if have_gdb:
# Based on Lib/test/test_gdb.py
regex = "^GNU gdb [^\d]*(\d+)\.(\d+)"
gdb_version_number = list(map(int, re.search(regex, gdb_version).groups()))
if gdb_version_number >= [7, 2]:
python_version_script = tempfile.NamedTemporaryFile(mode='w+')
python_version_script.write(
'python import sys; print("%s %s" % sys.version_info[:2])')
python_version_script.flush()
p = subprocess.Popen(['gdb', '-batch', '-x', python_version_script.name],
stdout=subprocess.PIPE)
python_version = p.stdout.read().decode('ascii')
p.wait()
python_version_number = list(map(int, python_version.split()))
# Be Python 3 compatible
if (not have_gdb
or gdb_version_number < [7, 2]
or python_version_number < [2, 6]):
warnings.warn(
'Skipping gdb tests, need gdb >= 7.2 with Python >= 2.6')
have_gdb = False
return have_gdb
class DebuggerTestCase(unittest.TestCase):
def setUp(self):
......@@ -36,6 +79,9 @@ class DebuggerTestCase(unittest.TestCase):
Run gdb and have cygdb import the debug information from the code
defined in TestParseTreeTransforms's setUp method
"""
if not test_gdb():
return
self.tempdir = tempfile.mkdtemp()
self.destfile = os.path.join(self.tempdir, 'codefile.pyx')
self.debug_dest = os.path.join(self.tempdir,
......@@ -100,6 +146,8 @@ class DebuggerTestCase(unittest.TestCase):
# )
def tearDown(self):
if not test_gdb():
return
os.chdir(self.cwd)
shutil.rmtree(self.tempdir)
......@@ -107,6 +155,9 @@ class DebuggerTestCase(unittest.TestCase):
class GdbDebuggerTestCase(DebuggerTestCase):
def setUp(self):
if not test_gdb():
return
super(GdbDebuggerTestCase, self).setUp()
prefix_code = textwrap.dedent('''\
......@@ -166,25 +217,26 @@ class GdbDebuggerTestCase(DebuggerTestCase):
p.wait()
p.stdout.close()
if have_gdb:
python_version_script = tempfile.NamedTemporaryFile(mode='w+')
python_version_script.write(
'python import sys; print("%s %s" % sys.version_info[:2])')
python_version_script.flush()
p = subprocess.Popen(['gdb', '-batch', '-x', python_version_script.name],
stdout=subprocess.PIPE)
python_version = p.stdout.read().decode('ascii')
p.wait()
python_version_number = [int(a) for a in python_version.split()]
if have_gdb:
# Based on Lib/test/test_gdb.py
regex = "^GNU gdb [^\d]*(\d+)\.(\d+)"
gdb_version_number = re.search(regex, gdb_version).groups()
gdb_version_number = list(map(int, re.search(regex, gdb_version).groups()))
if gdb_version_number >= [7, 2]:
python_version_script = tempfile.NamedTemporaryFile(mode='w+')
python_version_script.write(
'python import sys; print("%s %s" % sys.version_info[:2])')
python_version_script.flush()
p = subprocess.Popen(['gdb', '-batch', '-x', python_version_script.name],
stdout=subprocess.PIPE)
python_version = p.stdout.read().decode('ascii')
p.wait()
python_version_number = list(map(int, python_version.split()))
# Be Python 3 compatible
if (not have_gdb
or list(map(int, gdb_version_number)) < [7, 2]
or gdb_version_number < [7, 2]
or python_version_number < [2, 6]):
self.p = None
warnings.warn(
......@@ -197,6 +249,9 @@ class GdbDebuggerTestCase(DebuggerTestCase):
env=env)
def tearDown(self):
if not test_gdb():
return
super(GdbDebuggerTestCase, self).tearDown()
if self.p:
self.p.stderr.close()
......@@ -207,7 +262,7 @@ class GdbDebuggerTestCase(DebuggerTestCase):
class TestAll(GdbDebuggerTestCase):
def test_all(self):
if self.p is None:
if not test_gdb():
return
out, err = self.p.communicate()
......
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