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https://github.com/Gericom/teak-llvm.git
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8a5d7a2784
when we have only an in-memory copy of the binary. Also added a test for the generation of these symbols in the in-memory and regular cases. <rdar://problem/43160401> llvm-svn: 339833
77 lines
2.6 KiB
Python
77 lines
2.6 KiB
Python
"""
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Test that we read the function starts section.
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"""
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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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exe_name = "StripMe" # Must match Makefile
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class FunctionStartsTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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NO_DEBUG_INFO_TESTCASE = True
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@skipIfRemote
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@skipUnlessDarwin
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def test_function_starts_binary(self):
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"""Test that we make synthetic symbols when we have the binary."""
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self.build()
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self.do_function_starts(False)
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@skipIfRemote
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@skipUnlessDarwin
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def test_function_starts_no_binary(self):
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"""Test that we make synthetic symbols when we don't have the binary"""
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self.build()
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self.do_function_starts(True)
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def do_function_starts(self, in_memory):
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"""Run the binary, stop at our unstripped function,
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make sure the caller has synthetic symbols"""
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exe = self.getBuildArtifact(exe_name)
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# Now strip the binary, but leave externals so we can break on dont_strip_me.
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try:
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fail_str = system([["strip", "-u", "-x", "-S", exe]])
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except CalledProcessError as cmd_error:
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self.fail("Strip failed: %d"%(cmd_error.returncode))
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popen = self.spawnSubprocess(exe)
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self.addTearDownHook(self.cleanupSubprocesses)
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if in_memory:
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remove_file(exe)
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target = self.dbg.CreateTarget(None)
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self.assertTrue(target.IsValid(), "Got a vaid empty target.")
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error = lldb.SBError()
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attach_info = lldb.SBAttachInfo()
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attach_info.SetProcessID(popen.pid)
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attach_info.SetIgnoreExisting(False)
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process = target.Attach(attach_info, error)
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self.assertTrue(error.Success(), "Didn't attach successfully to %d: %s"%(popen.pid, error.GetCString()))
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bkpt = target.BreakpointCreateByName("dont_strip_me", exe)
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self.assertTrue(bkpt.GetNumLocations() > 0, "Didn't set the dont_strip_me bkpt.")
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threads = lldbutil.continue_to_breakpoint(process, bkpt)
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self.assertEqual(len(threads), 1, "Didn't hit my breakpoint.")
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# Our caller frame should have been stripped. Make sure we made a synthetic symbol
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# for it:
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thread = threads[0]
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self.assertTrue(thread.num_frames > 1, "Couldn't backtrace.")
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name = thread.frame[1].GetFunctionName()
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self.assertEqual("___lldb_unnamed_symbol1$$StripMe", name, "Frame name not synthetic")
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