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