lldb/test/python_api/module_section/TestModuleAndSection.py

"""
Test some SBModule and SBSection APIs.
"""

import os, time
import re
import unittest2
import lldb
from lldbtest import *
from lldbutil import symbol_type_to_str

class ModuleAndSectionAPIsTestCase(TestBase):

    mydir = TestBase.compute_mydir(__file__)

    @python_api_test
    def test_module_and_section(self):
        """Test module and section APIs."""
        self.build()
        exe = os.path.join(os.getcwd(), "a.out")

        target = self.dbg.CreateTarget(exe)
        self.assertTrue(target, VALID_TARGET)
        self.assertTrue(target.GetNumModules() > 0)

        # Hide stdout if not running with '-t' option.
        if not self.TraceOn():
            self.HideStdout()

        print "Number of modules for the target: %d" % target.GetNumModules()
        for module in target.module_iter():
            print module

        # Get the executable module at index 0.
        exe_module = target.GetModuleAtIndex(0)

        print "Exe module: %s" % str(exe_module)
        print "Number of sections: %d" % exe_module.GetNumSections()
        INDENT = ' ' * 4
        INDENT2 = INDENT * 2
        for sec in exe_module.section_iter():
            print sec
            print INDENT + "Number of subsections: %d" % sec.GetNumSubSections()
            if sec.GetNumSubSections() == 0:
                for sym in exe_module.symbol_in_section_iter(sec):
                    print INDENT + str(sym)
                    print INDENT + "symbol type: %s" % symbol_type_to_str(sym.GetType())
            else:
                for subsec in sec:
                    print INDENT + str(subsec)
                    # Now print the symbols belonging to the subsection....
                    for sym in exe_module.symbol_in_section_iter(subsec):
                        print INDENT2 + str(sym)
                        print INDENT2 + "symbol type: %s" % symbol_type_to_str(sym.GetType())

    @python_api_test
    def test_module_and_section_boundary_condition(self):
        """Test module and section APIs by passing None when it expects a Python string."""
        self.build()
        exe = os.path.join(os.getcwd(), "a.out")

        target = self.dbg.CreateTarget(exe)
        self.assertTrue(target, VALID_TARGET)
        self.assertTrue(target.GetNumModules() > 0)

        # Hide stdout if not running with '-t' option.
        if not self.TraceOn():
            self.HideStdout()

        print "Number of modules for the target: %d" % target.GetNumModules()
        for module in target.module_iter():
            print module

        # Get the executable module at index 0.
        exe_module = target.GetModuleAtIndex(0)

        print "Exe module: %s" % str(exe_module)
        print "Number of sections: %d" % exe_module.GetNumSections()

        # Boundary condition testings.  Should not crash lldb!
        exe_module.FindFirstType(None)
        exe_module.FindTypes(None)
        exe_module.FindGlobalVariables(target, None, 1)
        exe_module.FindFunctions(None, 0)
        exe_module.FindSection(None)

        # Get the section at index 1.
        if exe_module.GetNumSections() > 1:
            sec1 = exe_module.GetSectionAtIndex(1)
            print sec1
        else:
            sec1 = None

        if sec1:
            sec1.FindSubSection(None)

    @python_api_test
    def test_module_compile_unit_iter(self):
        """Test module's compile unit iterator APIs."""
        self.build()
        exe = os.path.join(os.getcwd(), "a.out")

        target = self.dbg.CreateTarget(exe)
        self.assertTrue(target, VALID_TARGET)
        self.assertTrue(target.GetNumModules() > 0)

        # Hide stdout if not running with '-t' option.
        if not self.TraceOn():
            self.HideStdout()

        print "Number of modules for the target: %d" % target.GetNumModules()
        for module in target.module_iter():
            print module

        # Get the executable module at index 0.
        exe_module = target.GetModuleAtIndex(0)

        print "Exe module: %s" % str(exe_module)
        print "Number of compile units: %d" % exe_module.GetNumCompileUnits()
        INDENT = ' ' * 4
        INDENT2 = INDENT * 2
        for cu in exe_module.compile_unit_iter():
            print cu

if __name__ == '__main__':
    import atexit
    lldb.SBDebugger.Initialize()
    atexit.register(lambda: lldb.SBDebugger.Terminate())
    unittest2.main()