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"""
Test the lldb disassemble command on foundation framework.
"""
from __future__ import print_function
import unittest2
import os
import time
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
@skipUnlessDarwin
class FoundationDisassembleTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
# rdar://problem/8504895
# Crash while doing 'disassemble -n "-[NSNumber descriptionWithLocale:]"
@unittest2.skipIf(
TestBase.skipLongRunningTest(),
"Skip this long running test")
def test_foundation_disasm(self):
"""Do 'disassemble -n func' on each and every 'Code' symbol entry from the Foundation.framework."""
self.build()
# Enable synchronous mode
self.dbg.SetAsync(False)
# Create a target by the debugger.
target = self.dbg.CreateTarget(self.getBuildArtifact("a.out"))
self.assertTrue(target, VALID_TARGET)
# Now launch the process, and do not stop at entry point.
process = target.LaunchSimple(
None, None, self.get_process_working_directory())
self.assertTrue(process, PROCESS_IS_VALID)
foundation_framework = None
for module in target.modules:
print(module)
if module.file.basename == "Foundation":
foundation_framework = module.file.fullpath
break
self.assertTrue(
foundation_framework is not None,
"Foundation.framework path located")
self.runCmd("image dump symtab '%s'" % foundation_framework)
raw_output = self.res.GetOutput()
# Now, grab every 'Code' symbol and feed it into the command:
# 'disassemble -n func'.
#
# The symbol name is on the last column and trails the flag column which
# looks like '0xhhhhhhhh', i.e., 8 hexadecimal digits.
codeRE = re.compile(r"""
\ Code\ {9} # ' Code' followed by 9 SPCs,
.* # the wildcard chars,
0x[0-9a-f]{8} # the flag column, and
\ (.+)$ # finally the function symbol.
""", re.VERBOSE)
for line in raw_output.split(os.linesep):
match = codeRE.search(line)
if match:
func = match.group(1)
#print("line:", line)
#print("func:", func)
self.runCmd('disassemble -n "%s"' % func)
def test_simple_disasm(self):
"""Test the lldb 'disassemble' command"""
self.build()
# Create a target by the debugger.
target = self.dbg.CreateTarget(self.getBuildArtifact("a.out"))
self.assertTrue(target, VALID_TARGET)
print(target)
for module in target.modules:
print(module)
# Stop at +[NSString stringWithFormat:].
symbol_name = "+[NSString stringWithFormat:]"
break_results = lldbutil.run_break_set_command(
self, "_regexp-break %s" % (symbol_name))
lldbutil.check_breakpoint_result(
self,
break_results,
symbol_name=symbol_name,
num_locations=1)
# Stop at -[MyString initWithNSString:].
lldbutil.run_break_set_by_symbol(
self,
'-[MyString initWithNSString:]',
num_expected_locations=1,
sym_exact=True)
# Stop at the "description" selector.
lldbutil.run_break_set_by_selector(
self,
'description',
num_expected_locations=1,
module_name='a.out')
# Stop at -[NSAutoreleasePool release].
break_results = lldbutil.run_break_set_command(
self, "_regexp-break -[NSAutoreleasePool release]")
lldbutil.check_breakpoint_result(
self,
break_results,
symbol_name='-[NSAutoreleasePool release]',
num_locations=1)
self.runCmd("run", RUN_SUCCEEDED)
# First stop is +[NSString stringWithFormat:].
self.expect(
"thread backtrace",
"Stop at +[NSString stringWithFormat:]",
substrs=["Foundation`+[NSString stringWithFormat:]"])
# Do the disassemble for the currently stopped function.
self.runCmd("disassemble -f")
self.runCmd("process continue")
# Skip another breakpoint for +[NSString stringWithFormat:].
self.runCmd("process continue")
# Followed by a.out`-[MyString initWithNSString:].
self.expect(
"thread backtrace",
"Stop at a.out`-[MyString initWithNSString:]",
substrs=["a.out`-[MyString initWithNSString:]"])
# Do the disassemble for the currently stopped function.
self.runCmd("disassemble -f")
self.runCmd("process continue")
# Followed by -[MyString description].
self.expect("thread backtrace", "Stop at -[MyString description]",
substrs=["a.out`-[MyString description]"])
# Do the disassemble for the currently stopped function.
self.runCmd("disassemble -f")
self.runCmd("process continue")
# Skip another breakpoint for -[MyString description].
self.runCmd("process continue")
# Followed by -[NSAutoreleasePool release].
self.expect("thread backtrace", "Stop at -[NSAutoreleasePool release]",
substrs=["Foundation`-[NSAutoreleasePool release]"])
# Do the disassemble for the currently stopped function.
self.runCmd("disassemble -f")
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