[lldb] add RISCV target specific info in API tests (#99039)

Add information about RISCV first register in python API testsuite, that is used to check register readability in tests. Fixed tests on RISCV target: TestBreakpointByFileColonLine.BreakpointByLineAndColumnTestCase TestAddressBreakpoints.AddressBreakpointTestCase TestBreakpointAutoContinue.BreakpointAutoContinue TestInterruptBacktrace.TestInterruptingBacktrace TestBadAddressBreakpoints.BadAddressBreakpointTestCase TestScriptedResolver.TestScriptedResolver TestStopHookScripted.TestStopHooks TestBreakpointConditions.BreakpointConditionsTestCase TestLocalVariables.LocalVariablesTestCase TestFindLineEntry.FindLineEntry TestScriptedResolver.TestScriptedResolver TestInlineSourceFiles.InlineSourceFilesTestCase TestModuleAndSection.ModuleAndSectionAPIsTestCase TestFrameVar.TestFrameVar TestInferiorAssert.AssertingInferiorTestCase TestInferiorCrashing.CrashingInferiorTestCase TestInferiorCrashingStep.CrashingInferiorStepTestCase TestRegistersIterator.RegistersIteratorTestCase TestCoroutineHandle.TestCoroutineHandle TestWithLimitDebugInfo.TestWithLimitDebugInfo TestLLDBIterator.LLDBIteratorTestCase TestMemoryWrite.MemoryWriteTestCase TestNestedTemplate.NestedTemplateTestCase TestParrayVrsCharArrayChild.TestParrayVrsCharArrayChild TestRecursiveInferior.CrashingRecursiveInferiorTestCase TestRecursiveInferiorStep.CrashingRecursiveInferiorStepTestCase TestRunLocker.TestRunLocker TestSampleTest.RenameThisSampleTestTestCase TestUniqueTypes3.UniqueTypesTestCase3 TestPrintStackTraces.ThreadsStackTracesTestCase TestUnicodeSymbols.TestUnicodeSymbols TestUnusedInlinedParameters.TestUnusedInlinedParameters TestValueVarUpdate.ValueVarUpdateTestCase TestPtrRef2Typedef.PtrRef2TypedefTestCase TestDataFormatterStdIterator.StdIteratorDataFormatterTestCase TestDataFormatterStdString.StdStringDataFormatterTestCase TestDataFormatterStdVBool.StdVBoolDataFormatterTestCase

Author: daniilavdeev

lldb/packages/Python/lldbsuite/test/lldbplatformutil.py

@@ -34,6 +34,8 @@ def check_first_register_readable(test_case):
  test_case.expect("register read r0", substrs=["r0 = 0x"])
  elif arch in ["powerpc64le"]:
  test_case.expect("register read r0", substrs=["r0 = 0x"])
+ elif re.match("^rv(32|64)", arch):
+ test_case.expect("register read zero", substrs=["zero = 0x"])
  else:
  # TODO: Add check for other architectures
  test_case.fail(