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112 lines
3.8 KiB
Python
112 lines
3.8 KiB
Python
"""Test that thread-local storage can be read correctly."""
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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 TlsGlobalTestCase(TestBase):
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def setUp(self):
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TestBase.setUp(self)
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if self.getPlatform() == "freebsd" or self.getPlatform() == "linux":
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# LD_LIBRARY_PATH must be set so the shared libraries are found on
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# startup
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if "LD_LIBRARY_PATH" in os.environ:
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self.runCmd(
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"settings set target.env-vars "
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+ self.dylibPath
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+ "="
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+ os.environ["LD_LIBRARY_PATH"]
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+ ":"
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+ self.getBuildDir()
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)
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else:
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self.runCmd(
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"settings set target.env-vars "
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+ self.dylibPath
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+ "="
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+ self.getBuildDir()
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)
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self.addTearDownHook(
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lambda: self.runCmd("settings remove target.env-vars " + self.dylibPath)
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)
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# TLS works differently on Windows, this would need to be implemented
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# separately.
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@skipIfWindows
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@skipIf(oslist=["linux"], archs=["arm", "aarch64"])
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@skipIf(oslist=no_match([lldbplatformutil.getDarwinOSTriples(), "linux"]))
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@expectedFailureIf(lldbplatformutil.xcode15LinkerBug())
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def test(self):
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"""Test thread-local storage."""
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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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if self.platformIsDarwin():
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self.registerSharedLibrariesWithTarget(target, ["liba.dylib"])
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line1 = line_number("main.c", "// thread breakpoint")
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lldbutil.run_break_set_by_file_and_line(
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self, "main.c", line1, num_expected_locations=1, loc_exact=True
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)
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self.runCmd("run", RUN_SUCCEEDED)
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# The stop reason of the thread should be breakpoint.
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self.runCmd("process status", "Get process status")
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self.expect(
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"thread list",
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STOPPED_DUE_TO_BREAKPOINT,
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substrs=["stopped", "stop reason = breakpoint"],
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)
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# BUG: sometimes lldb doesn't change threads to the stopped thread.
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# (unrelated to this test).
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self.runCmd("thread select 2", "Change thread")
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# Check that TLS evaluates correctly within the thread.
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self.expect(
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"expr var_static",
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VARIABLES_DISPLAYED_CORRECTLY,
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patterns=[r"\(int\) \$.* = 88"],
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)
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self.expect(
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"expr var_shared",
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VARIABLES_DISPLAYED_CORRECTLY,
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patterns=[r"\(int\) \$.* = 66"],
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)
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# Continue on the main thread
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line2 = line_number("main.c", "// main breakpoint")
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lldbutil.run_break_set_by_file_and_line(
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self, "main.c", line2, num_expected_locations=1, loc_exact=True
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)
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self.runCmd("continue", RUN_SUCCEEDED)
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# The stop reason of the thread should be breakpoint.
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self.runCmd("process status", "Get process status")
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self.expect(
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"thread list",
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STOPPED_DUE_TO_BREAKPOINT,
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substrs=["stopped", "stop reason = breakpoint"],
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)
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# BUG: sometimes lldb doesn't change threads to the stopped thread.
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# (unrelated to this test).
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self.runCmd("thread select 1", "Change thread")
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# Check that TLS evaluates correctly within the main thread.
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self.expect(
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"expr var_static",
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VARIABLES_DISPLAYED_CORRECTLY,
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patterns=[r"\(int\) \$.* = 44"],
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)
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self.expect(
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"expr var_shared",
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VARIABLES_DISPLAYED_CORRECTLY,
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patterns=[r"\(int\) \$.* = 33"],
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)
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