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
275 lines
11 KiB
Python
275 lines
11 KiB
Python
"""
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Test that breakpoint by symbol name works correctly with dynamic libs.
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"""
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import os, time
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import re
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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 LoadUnloadTestCase(TestBase):
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def getCategories (self):
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return ['basic_process']
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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 for main.cpp.
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self.line = line_number('main.c',
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'// Set break point at this line for test_lldb_process_load_and_unload_commands().')
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self.line_d_function = line_number('d.c',
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'// Find this line number within d_dunction().')
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if not sys.platform.startswith("darwin"):
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if "LD_LIBRARY_PATH" in os.environ:
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self.runCmd("settings set target.env-vars " + self.dylibPath + "=" + os.environ["LD_LIBRARY_PATH"] + ":" + os.getcwd())
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else:
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self.runCmd("settings set target.env-vars " + self.dylibPath + "=" + os.getcwd())
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@skipIfFreeBSD # llvm.org/pr14424 - missing FreeBSD Makefiles/testcase support
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@not_remote_testsuite_ready
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def test_modules_search_paths(self):
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"""Test target modules list after loading a different copy of the library libd.dylib, and verifies that it works with 'target modules search-paths add'."""
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# Invoke the default build rule.
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self.buildDefault()
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if sys.platform.startswith("darwin"):
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dylibName = 'libloadunload_d.dylib'
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else:
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dylibName = 'libloadunload_d.so'
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# The directory with the dynamic library we did not link to.
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new_dir = os.path.join(os.getcwd(), "hidden")
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old_dylib = os.path.join(os.getcwd(), dylibName)
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new_dylib = os.path.join(new_dir, dylibName)
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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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self.expect("target modules list",
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substrs = [old_dylib])
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#self.expect("target modules list -t 3",
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# patterns = ["%s-[^-]*-[^-]*" % self.getArchitecture()])
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# Add an image search path substitution pair.
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self.runCmd("target modules search-paths add %s %s" % (os.getcwd(), new_dir))
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# Add teardown hook to clear image-search-paths after the test.
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# rdar://problem/10501020
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# Uncomment the following to reproduce 10501020.
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self.addTearDownHook(lambda: self.runCmd("target modules search-paths clear"))
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self.expect("target modules search-paths list",
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substrs = [os.getcwd(), new_dir])
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self.expect("target modules search-paths query %s" % os.getcwd(), "Image search path successfully transformed",
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substrs = [new_dir])
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# Obliterate traces of libd from the old location.
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os.remove(old_dylib)
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# Inform (DY)LD_LIBRARY_PATH of the new path, too.
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env_cmd_string = "settings set target.env-vars " + self.dylibPath + "=" + new_dir
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if self.TraceOn():
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print "Set environment to: ", env_cmd_string
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self.runCmd(env_cmd_string)
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self.runCmd("settings show target.env-vars")
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remove_dyld_path_cmd = "settings remove target.env-vars " + self.dylibPath
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self.addTearDownHook(lambda: self.runCmd(remove_dyld_path_cmd))
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self.runCmd("run")
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self.expect("target modules list", "LLDB successfully locates the relocated dynamic library",
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substrs = [new_dylib])
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@skipIfFreeBSD # llvm.org/pr14424 - missing FreeBSD Makefiles/testcase support
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@not_remote_testsuite_ready
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def test_dyld_library_path(self):
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"""Test (DY)LD_LIBRARY_PATH after moving libd.dylib, which defines d_function, somewhere else."""
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# Invoke the default build rule.
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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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if sys.platform.startswith("darwin"):
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dylibName = 'libloadunload_d.dylib'
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dsymName = 'libloadunload_d.dylib.dSYM'
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else:
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dylibName = 'libloadunload_d.so'
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# The directory to relocate the dynamic library and its debugging info.
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special_dir = "hidden"
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new_dir = os.path.join(os.getcwd(), special_dir)
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old_dylib = os.path.join(os.getcwd(), dylibName)
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new_dylib = os.path.join(new_dir, dylibName)
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#system(["ls", "-lR", "."])
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# Try running with the (DY)LD_LIBRARY_PATH environment variable set, make sure
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# we pick up the hidden dylib.
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env_cmd_string = "settings set target.env-vars " + self.dylibPath + "=" + new_dir
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if not sys.platform.startswith("darwin"):
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env_cmd_string += ":" + os.getcwd()
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if self.TraceOn():
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print "Set environment to: ", env_cmd_string
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self.runCmd(env_cmd_string)
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self.runCmd("settings show target.env-vars")
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remove_dyld_path_cmd = "settings remove target.env-vars " + self.dylibPath
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self.addTearDownHook(lambda: self.runCmd(remove_dyld_path_cmd))
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lldbutil.run_break_set_by_file_and_line (self, "d.c", self.line_d_function, num_expected_locations=1, loc_exact=True)
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# For now we don't track (DY)LD_LIBRARY_PATH, so the old library will be in
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# the modules list.
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self.expect("target modules list",
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substrs = [os.path.basename(old_dylib)],
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matching=True)
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self.runCmd("run")
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self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT,
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patterns = ["frame #0.*d_function.*at d.c:%d" % self.line_d_function])
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# After run, make sure the hidden library is present, and the one we didn't
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# load is not.
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self.expect("target modules list",
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substrs = [special_dir, os.path.basename(new_dylib)])
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@skipIfFreeBSD # llvm.org/pr14424 - missing FreeBSD Makefiles/testcase support
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@not_remote_testsuite_ready
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@unittest2.expectedFailure("rdar://15367406")
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def test_lldb_process_load_and_unload_commands(self):
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"""Test that lldb process load/unload command work correctly."""
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# Invoke the default build rule.
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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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# Break at main.c before the call to dlopen().
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# Use lldb's process load command to load the dylib, instead.
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lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
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self.runCmd("run", RUN_SUCCEEDED)
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# Make sure that a_function does not exist at this point.
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self.expect("image lookup -n a_function", "a_function should not exist yet",
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error=True, matching=False,
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patterns = ["1 match found .* %s" % self.mydir])
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if sys.platform.startswith("darwin"):
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dylibName = 'libloadunload_a.dylib'
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else:
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dylibName = 'libloadunload_a.so'
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# Use lldb 'process load' to load the dylib.
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self.expect("process load %s" % dylibName, "%s loaded correctly" % dylibName,
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patterns = ['Loading "%s".*ok' % dylibName,
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'Image [0-9]+ loaded'])
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# Search for and match the "Image ([0-9]+) loaded" pattern.
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output = self.res.GetOutput()
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pattern = re.compile("Image ([0-9]+) loaded")
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for l in output.split(os.linesep):
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#print "l:", l
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match = pattern.search(l)
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if match:
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break
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index = match.group(1)
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# Now we should have an entry for a_function.
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self.expect("image lookup -n a_function", "a_function should now exist",
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patterns = ["1 match found .*%s" % self.mydir])
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# Use lldb 'process unload' to unload the dylib.
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self.expect("process unload %s" % index, "%s unloaded correctly" % dylibName,
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patterns = ["Unloading .* with index %s.*ok" % index])
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self.runCmd("process continue")
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@skipIfFreeBSD # llvm.org/pr14424 - missing FreeBSD Makefiles/testcase support
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@not_remote_testsuite_ready
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def test_load_unload(self):
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"""Test breakpoint by name works correctly with dlopen'ing."""
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# Invoke the default build rule.
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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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# Break by function name a_function (not yet loaded).
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lldbutil.run_break_set_by_symbol (self, "a_function", num_expected_locations=0)
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self.runCmd("run", RUN_SUCCEEDED)
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# The stop reason of the thread should be breakpoint and at a_function.
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self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
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substrs = ['stopped',
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'a_function',
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'stop reason = breakpoint'])
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# The breakpoint should have a hit count of 1.
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self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
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substrs = [' resolved, hit count = 1'])
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# Issue the 'contnue' command. We should stop agaian at a_function.
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# The stop reason of the thread should be breakpoint and at a_function.
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self.runCmd("continue")
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# rdar://problem/8508987
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# The a_function breakpoint should be encountered twice.
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self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
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substrs = ['stopped',
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'a_function',
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'stop reason = breakpoint'])
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# The breakpoint should have a hit count of 2.
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self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
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substrs = [' resolved, hit count = 2'])
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@skipIfFreeBSD # llvm.org/pr14424 - missing FreeBSD Makefiles/testcase support
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@not_remote_testsuite_ready
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def test_step_over_load (self):
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"""Test stepping over code that loads a shared library works correctly."""
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# Invoke the default build rule.
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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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# Break by function name a_function (not yet loaded).
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lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
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self.runCmd("run", RUN_SUCCEEDED)
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# The stop reason of the thread should be breakpoint and at a_function.
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self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
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substrs = ['stopped',
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'stop reason = breakpoint'])
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self.runCmd("thread step-over", "Stepping over function that loads library")
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# The stop reason should be step end.
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self.expect("thread list", "step over succeeded.",
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substrs = ['stopped',
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'stop reason = step over'])
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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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