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