| """ |
| 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) |
