diff options
Diffstat (limited to 'lldb/test/API/commands/expression/TestRegisterExpressionEndian.py')
| -rw-r--r-- | lldb/test/API/commands/expression/TestRegisterExpressionEndian.py | 54 |
1 files changed, 48 insertions, 6 deletions
diff --git a/lldb/test/API/commands/expression/TestRegisterExpressionEndian.py b/lldb/test/API/commands/expression/TestRegisterExpressionEndian.py index 66e38df3a969..d6de8731385b 100644 --- a/lldb/test/API/commands/expression/TestRegisterExpressionEndian.py +++ b/lldb/test/API/commands/expression/TestRegisterExpressionEndian.py @@ -40,9 +40,15 @@ class Responder(MockGDBServerResponder): class TestXMLRegisterFlags(GDBRemoteTestBase): def do_endian_test(self, endian): - architecture, pc_reg_name = { - Endian.BIG: ("s390x", "pswa"), - Endian.LITTLE: ("aarch64", "pc"), + architecture, pc_reg_name, yaml_file, data, machine = { + Endian.BIG: ("s390x", "pswa", "s390x.yaml", "ELFDATA2MSB", "EM_S390"), + Endian.LITTLE: ( + "aarch64", + "pc", + "aarch64.yaml", + "ELFDATA2LSB", + "EM_AARCH64", + ), }[endian] self.server.responder = Responder( @@ -58,14 +64,35 @@ class TestXMLRegisterFlags(GDBRemoteTestBase): ), endian, ) - target = self.dbg.CreateTarget("") + + # We need to have a program file, so that we have a full type system, + # so that we can do the casts later. + obj_path = self.getBuildArtifact("main.o") + yaml_path = self.getBuildArtifact(yaml_file) + with open(yaml_path, "w") as f: + f.write( + dedent( + f"""\ + --- !ELF + FileHeader: + Class: ELFCLASS64 + Data: {data} + Type: ET_REL + Machine: {machine} + ... + """ + ) + ) + self.yaml2obj(yaml_path, obj_path) + target = self.dbg.CreateTarget(obj_path) + process = self.connect(target) lldbutil.expect_state_changes( self, self.dbg.GetListener(), process, [lldb.eStateStopped] ) # If expressions convert register values into target endian, the - # result of register read and expr should be the same. + # result of register read, expr and casts should be the same. pc_value = "0x0000000000001234" self.expect( "register read pc", @@ -73,14 +100,29 @@ class TestXMLRegisterFlags(GDBRemoteTestBase): ) self.expect("expr --format hex -- $pc", substrs=[pc_value]) + pc = ( + process.thread[0] + .frame[0] + .GetRegisters() + .GetValueAtIndex(0) + .GetChildMemberWithName("pc") + ) + ull = target.FindTypes("unsigned long long").GetTypeAtIndex(0) + pc_ull = pc.Cast(ull) + + self.assertEqual(pc.GetValue(), pc_ull.GetValue()) + self.assertEqual(pc.GetValueAsAddress(), pc_ull.GetValueAsAddress()) + self.assertEqual(pc.GetValueAsSigned(), pc_ull.GetValueAsSigned()) + self.assertEqual(pc.GetValueAsUnsigned(), pc_ull.GetValueAsUnsigned()) + @skipIfXmlSupportMissing @skipIfRemote + @skipIfLLVMTargetMissing("AArch64") def test_little_endian_target(self): self.do_endian_test(Endian.LITTLE) @skipIfXmlSupportMissing @skipIfRemote - # Unlike AArch64, we do need the backend present for this test to work. @skipIfLLVMTargetMissing("SystemZ") def test_big_endian_target(self): self.do_endian_test(Endian.BIG) |