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"""
Test that "breakpoint set -a" uses the ABI plugin to remove non-address bits
before attempting to set a breakpoint.
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class AArch64LinuxNonAddressBitCodeBreak(TestBase):
NO_DEBUG_INFO_TESTCASE = True
def do_tagged_break(self, hardware):
if not self.isAArch64PAuth():
self.skipTest("Target must support pointer authentication.")
self.build()
self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET)
lldbutil.run_break_set_by_file_and_line(
self,
"main.c",
line_number("main.c", "// Set break point at this line."),
num_expected_locations=1,
)
self.runCmd("run", RUN_SUCCEEDED)
if self.process().GetState() == lldb.eStateExited:
self.fail("Test program failed to run.")
self.expect(
"thread list",
STOPPED_DUE_TO_BREAKPOINT,
substrs=["stopped", "stop reason = breakpoint"],
)
cmd = "breakpoint set -a fnptr"
# LLDB only has the option to force hardware break, not software.
# It prefers sofware break when it can and this will be one of those cases.
if hardware:
cmd += " --hardware"
self.expect(cmd)
self.runCmd("continue")
self.assertEqual(self.process().GetState(), lldb.eStateStopped)
self.expect(
"thread list",
STOPPED_DUE_TO_BREAKPOINT,
substrs=["stopped", "`foo at main.c", "stop reason = breakpoint"],
)
# AArch64 Linux always enables the top byte ignore feature
@skipUnlessArch("aarch64")
@skipUnlessPlatform(["linux"])
def test_software_break(self):
self.do_tagged_break(False)
@skipUnlessArch("aarch64")
@skipUnlessPlatform(["linux"])
def test_hardware_break(self):
self.do_tagged_break(True)
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