69c39e2abc
Currently, lldb-server was opening the executable file to determine the process architecture (to differentiate between 32 and 64 bit architecture flavours). This isn't a particularly trustworthy source of information (the file could have been changed since the process was started) and it is not always available (file could be deleted or otherwise inaccessible). Unfortunately, ptrace does not give us a direct API to access the process architecture, but we can still infer it via some of its responses -- given that the general purpose register set of 64-bit applications is larger [citation needed] than the GPR set of 32-bit ones, we can just ask for the application GPR set and check its size. This is what this patch does. Differential Revision: https://reviews.llvm.org/D130985
40 lines
1.1 KiB
Python
40 lines
1.1 KiB
Python
"""
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Test process attach when executable was deleted.
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"""
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import os
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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 TestDeletedExecutable(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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@skipIfWindows # cannot delete a running executable
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def test(self):
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self.build()
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exe = self.getBuildArtifact("a.out")
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# Use a file as a synchronization point between test and inferior.
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pid_file_path = lldbutil.append_to_process_working_directory(self,
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"token_pid_%d" % (int(os.getpid())))
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self.addTearDownHook(
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lambda: self.run_platform_command(
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"rm %s" %
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(pid_file_path)))
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# Spawn a new process
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popen = self.spawnSubprocess(exe, [pid_file_path])
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# Wait until process has fully started up.
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pid = lldbutil.wait_for_file_on_target(self, pid_file_path)
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# Now we can safely remove the executable and test if we can attach.
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os.remove(exe)
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self.runCmd("process attach -p " + str(popen.pid))
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self.runCmd("kill")
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