def dispatch_request(self, symbol_name=None):
if request.method == "POST":
helper = BacktraceHelper(self.collector)
snippet = request.form["snippet"]
self.template_vars["snippet"] = snippet
self.template_vars["functions"] = helper.derive_function_symbols(snippet)
return self.render_template("rack.html.jinja", "rack")
def test_transform_known_symbols(self):
r = BacktraceHelper(TestBacktraceHelper.FakeCollector([
"a", "c", "d",
]))
def f(symbol):
return symbol[collector.NAME] + symbol[collector.NAME]
actual = r.transform_known_symbols("0 1 a b c d e f 0 2", f)
self.assertEqual("0 1 aa b cc dd e f 0 2", actual)
def test_returns_known_symbols(self):
r = BacktraceHelper(TestBacktraceHelper.FakeCollector([
"codepoint_get_horizontal_advance", "text_walk_lines",
]))
actual = r.derive_function_symbols("""
fontinfo=0x200010ec <s_system_fonts_info_table+200>) 16 at ../src/fw/applib/graphics/text_resources.c:347
#4 0x08012220 in codepoint_get_horizontal_advance () 16
#5 0x08012602 in walk_line () 112
#6 0x080128d6 in text_walk_lines.constprop.8 () (inlined)
""")
self.assertEqual(["codepoint_get_horizontal_advance", "text_walk_lines"], [f[collector.NAME] for f in actual])
def symbols_filter(context, value):
renderer = renderer_from_context(context)
if renderer:
helper = BacktraceHelper(renderer.collector)
def make_links(s):
name = s[collector.NAME]
url = renderer.url_for_symbol_name(name, context)
return '<a href="%s">%s</a>' % (url, name)
if isinstance(value, markupsafe.Markup):
value = value.__html__().unescape()
return helper.transform_known_symbols(value, make_links)
return value
def setUp(self):
self.cc = collector.Collector()
self.a = self.cc.add_symbol("a", "a", type=collector.TYPE_FUNCTION, stack_size=1)
self.b = self.cc.add_symbol("b", "b", type=collector.TYPE_FUNCTION, stack_size=10)
self.c = self.cc.add_symbol("c", "c", type=collector.TYPE_FUNCTION, stack_size=100)
self.d = self.cc.add_symbol("d", "d", type=collector.TYPE_FUNCTION, stack_size=1000)
self.e = self.cc.add_symbol("e", "e", type=collector.TYPE_FUNCTION, stack_size=10000)
self.f = self.cc.add_symbol("f", "f", type=collector.TYPE_FUNCTION)
self.cc.enhance_call_tree()
self.cc.add_function_call(self.a, self.b)
self.cc.add_function_call(self.a, self.c)
self.cc.add_function_call(self.b, self.a)
self.cc.add_function_call(self.c, self.b)
self.cc.add_function_call(self.c, self.d)
self.cc.add_function_call(self.d, self.e)
self.cc.add_function_call(self.d, self.f)
self.h = BacktraceHelper(self.cc)
def __init__(self, collector, src_root):
self.files = {}
self.collector = collector
self.backtrace_helper = BacktraceHelper(collector)
self.src_root = src_root
def test_returns_empty_list(self):
r = BacktraceHelper(None)
self.assertEqual([], r.derive_function_symbols(""))
