4570d3eba0
This has led to many test suite failures because of copy and paste where new test cases were based off of other test cases and the "mydir" variable wasn't updated. Now you can call your superclasses "compute_mydir()" function with "__file__" as the sole argument and the relative path will be computed for you. llvm-svn: 196985
113 lines
4.4 KiB
Python
113 lines
4.4 KiB
Python
"""
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Test the lldb disassemble command on lib stdc++.
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"""
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import os, time
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import unittest2
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import lldb
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from lldbtest import *
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import lldbutil
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class StdCXXDisassembleTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Find the line number to break inside main().
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self.line = line_number('main.cpp', '// Set break point at this line.')
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# rdar://problem/8504895
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# Crash while doing 'disassemble -n "-[NSNumber descriptionWithLocale:]"
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@unittest2.skipIf(TestBase.skipLongRunningTest(), "Skip this long running test")
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def test_stdcxx_disasm(self):
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"""Do 'disassemble' on each and every 'Code' symbol entry from the std c++ lib."""
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self.buildDefault()
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exe = os.path.join(os.getcwd(), "a.out")
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self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
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# rdar://problem/8543077
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# test/stl: clang built binaries results in the breakpoint locations = 3,
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# is this a problem with clang generated debug info?
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#
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# Break on line 13 of main.cpp.
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lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True)
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self.runCmd("run", RUN_SUCCEEDED)
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# Now let's get the target as well as the process objects.
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target = self.dbg.GetSelectedTarget()
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process = target.GetProcess()
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# The process should be in a 'stopped' state.
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self.expect(str(process), STOPPED_DUE_TO_BREAKPOINT, exe=False,
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substrs = ["a.out",
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"stopped"])
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# Disassemble the functions on the call stack.
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self.runCmd("thread backtrace")
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thread = process.GetThreadAtIndex(0)
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depth = thread.GetNumFrames()
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for i in range(depth - 1):
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frame = thread.GetFrameAtIndex(i)
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function = frame.GetFunction()
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self.runCmd("disassemble -n '%s'" % function.GetName())
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# Iterate through the available modules, looking for stdc++ library...
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for i in range(target.GetNumModules()):
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module = target.GetModuleAtIndex(i)
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fs = module.GetFileSpec()
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if (fs.GetFilename().startswith("libstdc++")):
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lib_stdcxx = str(fs)
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break
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# At this point, lib_stdcxx is the full path to the stdc++ library and
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# module is the corresponding SBModule.
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self.expect(fs.GetFilename(), "Libraray StdC++ is located", exe=False,
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substrs = ["libstdc++"])
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self.runCmd("image dump symtab %s" % str(fs))
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raw_output = self.res.GetOutput()
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# Now, look for every 'Code' symbol and feed its load address into the
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# command: 'disassemble -s load_address -e end_address', where the
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# end_address is taken from the next consecutive 'Code' symbol entry's
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# load address.
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#
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# The load address column comes after the file address column, with both
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# looks like '0xhhhhhhhh', i.e., 8 hexadecimal digits.
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codeRE = re.compile(r"""
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\ Code\ {9} # ' Code' followed by 9 SPCs,
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0x[0-9a-f]{16} # the file address column, and
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\ # a SPC, and
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(0x[0-9a-f]{16}) # the load address column, and
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.* # the rest.
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""", re.VERBOSE)
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# Maintain a start address variable; if we arrive at a consecutive Code
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# entry, then the load address of the that entry is fed as the end
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# address to the 'disassemble -s SA -e LA' command.
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SA = None
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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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LA = match.group(1)
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if self.TraceOn():
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print "line:", line
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print "load address:", LA
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print "SA:", SA
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if SA and LA:
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if int(LA, 16) > int(SA, 16):
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self.runCmd("disassemble -s %s -e %s" % (SA, LA))
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SA = LA
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else:
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# This entry is not a Code entry. Reset SA = None.
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SA = None
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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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