5ec76fe720
This patch is the result of a discussion on lldb-dev, see http://lists.llvm.org/pipermail/lldb-dev/2018-January/013111.html for background. For each test (should be eventually: each test configuration) a separate build directory is created and we execute make VPATH=$srcdir/path/to/test -C $builddir/path/to/test -f $srcdir/path/to/test/Makefile -I $srcdir/path/to/test In order to make this work all LLDB tests need to be updated to find the executable in the test build directory, since CWD still points at the test's source directory, which is a requirement for unittest2. Although we have done extensive testing, I'm expecting that this first attempt will break a few bots. Please DO NOT HESITATE TO REVERT this patch in order to get the bots green again. We will likely have to iterate on this some more. Differential Revision: https://reviews.llvm.org/D42281 llvm-svn: 323803
119 lines
4.4 KiB
Python
119 lines
4.4 KiB
Python
"""Test stepping and setting breakpoints in indirect and re-exported symbols."""
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from __future__ import print_function
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import os
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import time
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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 TestIndirectFunctions(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 numbers that we will step to in main:
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self.main_source = "main.c"
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@skipUnlessDarwin
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@add_test_categories(['pyapi'])
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def test_with_python_api(self):
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"""Test stepping and setting breakpoints in indirect and re-exported symbols."""
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self.build()
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exe = self.getBuildArtifact("a.out")
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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if self.platformIsDarwin():
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lib1 = self.getBuildArtifact('libindirect.dylib')
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lib2 = self.getBuildArtifact('libreexport.dylib')
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self.registerSharedLibrariesWithTarget(target, [lib1, lib2])
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self.main_source_spec = lldb.SBFileSpec(self.main_source)
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break1 = target.BreakpointCreateBySourceRegex(
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"Set breakpoint here to step in indirect.", self.main_source_spec)
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self.assertTrue(break1, VALID_BREAKPOINT)
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break2 = target.BreakpointCreateBySourceRegex(
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"Set breakpoint here to step in reexported.", self.main_source_spec)
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self.assertTrue(break2, VALID_BREAKPOINT)
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# Now launch the process, and do not stop at entry point.
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process = target.LaunchSimple(
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None, None, self.get_process_working_directory())
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self.assertTrue(process, PROCESS_IS_VALID)
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# The stop reason of the thread should be breakpoint.
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threads = lldbutil.get_threads_stopped_at_breakpoint(process, break1)
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if len(threads) != 1:
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self.fail("Failed to stop at breakpoint 1.")
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thread = threads[0]
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# Now do a step-into, and we should end up in the hidden target of this
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# indirect function.
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thread.StepInto()
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curr_function = thread.GetFrameAtIndex(0).GetFunctionName()
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self.assertTrue(
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curr_function == "call_through_indirect_hidden",
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"Stepped into indirect symbols.")
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# Now set a breakpoint using the indirect symbol name, and make sure we
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# get to that:
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break_indirect = target.BreakpointCreateByName("call_through_indirect")
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self.assertTrue(break_indirect, VALID_BREAKPOINT)
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# Now continue should take us to the second call through the indirect
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# symbol:
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threads = lldbutil.continue_to_breakpoint(process, break_indirect)
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self.assertTrue(
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len(threads) == 1,
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"Stopped at breakpoint in indirect function.")
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curr_function = thread.GetFrameAtIndex(0).GetFunctionName()
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self.assertTrue(
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curr_function == "call_through_indirect_hidden",
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"Stepped into indirect symbols.")
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# Delete this breakpoint so it won't get in the way:
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target.BreakpointDelete(break_indirect.GetID())
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# Now continue to the site of the first re-exported function call in
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# main:
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threads = lldbutil.continue_to_breakpoint(process, break2)
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# This is stepping Into through a re-exported symbol to an indirect
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# symbol:
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thread.StepInto()
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curr_function = thread.GetFrameAtIndex(0).GetFunctionName()
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self.assertTrue(
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curr_function == "call_through_indirect_hidden",
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"Stepped into indirect symbols.")
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# And the last bit is to set a breakpoint on the re-exported symbol and
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# make sure we are again in out target function.
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break_reexported = target.BreakpointCreateByName(
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"reexport_to_indirect")
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self.assertTrue(break_reexported, VALID_BREAKPOINT)
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# Now continue should take us to the second call through the indirect
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# symbol:
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threads = lldbutil.continue_to_breakpoint(process, break_reexported)
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self.assertTrue(
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len(threads) == 1,
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"Stopped at breakpoint in reexported function target.")
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curr_function = thread.GetFrameAtIndex(0).GetFunctionName()
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self.assertTrue(
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curr_function == "call_through_indirect_hidden",
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"Stepped into indirect symbols.")
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