dbfdb139f7
Fix the POSIX-DYLD plugin to update the cached executable path after attaching. Previously, the path was cached in DYLDRendezvous constructor and not updated afterwards. This meant that if LLDB was attaching to a process (e.g. via connecting to lldb-server), the code stored the empty path before DidAttach() resolved it. The fix updates the cached path in DidAttach(). This fixes a new instance of https://llvm.org/pr17880 Differential Revision: https://reviews.llvm.org/D92264
115 lines
3.4 KiB
Python
115 lines
3.4 KiB
Python
"""
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Test process attach.
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"""
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import os
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import lldb
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import shutil
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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 = "ProcessAttach" # Must match Makefile
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class ProcessAttachTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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NO_DEBUG_INFO_TESTCASE = True
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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.c.
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self.line = line_number('main.cpp',
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'// Waiting to be attached...')
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@skipIfiOSSimulator
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def test_attach_to_process_by_id(self):
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"""Test attach by process id"""
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self.build()
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exe = self.getBuildArtifact(exe_name)
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# Spawn a new process
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popen = self.spawnSubprocess(exe)
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self.runCmd("process attach -p " + str(popen.pid))
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target = self.dbg.GetSelectedTarget()
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process = target.GetProcess()
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self.assertTrue(process, PROCESS_IS_VALID)
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@skipIfReproducer # FIXME: Unexpected packet during (active) replay
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def test_attach_to_process_from_different_dir_by_id(self):
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"""Test attach by process id"""
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newdir = self.getBuildArtifact("newdir")
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try:
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os.mkdir(newdir)
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except OSError as e:
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if e.errno != os.errno.EEXIST:
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raise
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testdir = self.getBuildDir()
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exe = os.path.join(newdir, 'proc_attach')
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self.buildProgram('main.cpp', exe)
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self.addTearDownHook(lambda: shutil.rmtree(newdir))
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# Spawn a new process
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popen = self.spawnSubprocess(exe)
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os.chdir(newdir)
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self.addTearDownHook(lambda: os.chdir(testdir))
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self.runCmd("process attach -p " + str(popen.pid))
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target = self.dbg.GetSelectedTarget()
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process = target.GetProcess()
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self.assertTrue(process, PROCESS_IS_VALID)
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def test_attach_to_process_by_name(self):
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"""Test attach by process name"""
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self.build()
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exe = self.getBuildArtifact(exe_name)
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# Spawn a new process
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popen = self.spawnSubprocess(exe)
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self.runCmd("process attach -n " + exe_name)
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target = self.dbg.GetSelectedTarget()
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process = target.GetProcess()
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self.assertTrue(process, PROCESS_IS_VALID)
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def test_attach_to_process_by_id_correct_executable_offset(self):
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"""
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Test that after attaching to a process the executable offset
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is determined correctly on FreeBSD. This is a regression test
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for dyld plugin getting the correct executable path,
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and therefore being able to identify it in the module list.
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"""
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self.build()
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exe = self.getBuildArtifact(exe_name)
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# In order to reproduce, we must spawn using a relative path
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popen = self.spawnSubprocess(os.path.relpath(exe))
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self.runCmd("process attach -p " + str(popen.pid))
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# Make suer we did not attach to early
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lldbutil.run_break_set_by_file_and_line(
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self, "main.cpp", self.line, num_expected_locations=1, loc_exact=False)
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self.runCmd("process continue")
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self.expect("p g_val", substrs=["$0 = 12345"])
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def tearDown(self):
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# Destroy process before TestBase.tearDown()
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self.dbg.GetSelectedTarget().GetProcess().Destroy()
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# Call super's tearDown().
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TestBase.tearDown(self)
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