8a62d6ba7e
Commit 122ebe3b500 changed the way that we look up eh-frame registration functions. This made LLJIT work "out of the box" in some Linux configs that didn't work before, but caused InterpreterExceptionTest to start failing: The test was skipped if a construction of a basic LLJIT config failed, but the test actually depended on debugger support working too. When the basic config started working we no longer skipped the test, then failed due to missing debugger support. I've extended the skip-test check to include the debugger support requirement, which should fix the issue.
130 lines
4.3 KiB
C++
130 lines
4.3 KiB
C++
//===- unittests/Interpreter/InterpreterExceptionTest.cpp -----------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Unit tests for Clang's Interpreter library.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Interpreter/Interpreter.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/Decl.h"
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#include "clang/AST/DeclGroup.h"
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#include "clang/Basic/TargetInfo.h"
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#include "clang/Basic/Version.h"
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#include "clang/Config/config.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/Frontend/TextDiagnosticPrinter.h"
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ExecutionEngine/Orc/LLJIT.h"
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/Support/TargetSelect.h"
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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using namespace clang;
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namespace {
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using Args = std::vector<const char *>;
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static std::unique_ptr<Interpreter>
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createInterpreter(const Args &ExtraArgs = {},
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DiagnosticConsumer *Client = nullptr) {
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Args ClangArgs = {"-Xclang", "-emit-llvm-only"};
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ClangArgs.insert(ClangArgs.end(), ExtraArgs.begin(), ExtraArgs.end());
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auto CB = clang::IncrementalCompilerBuilder();
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CB.SetCompilerArgs(ClangArgs);
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auto CI = cantFail(CB.CreateCpp());
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if (Client)
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CI->getDiagnostics().setClient(Client, /*ShouldOwnClient=*/false);
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return cantFail(clang::Interpreter::create(std::move(CI)));
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}
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TEST(InterpreterTest, CatchException) {
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llvm::llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
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llvm::InitializeNativeTarget();
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llvm::InitializeNativeTargetAsmPrinter();
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{
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auto J = llvm::orc::LLJITBuilder()
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.setEnableDebuggerSupport(true)
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.create();
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if (!J) {
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// The platform does not support JITs.
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// Using llvm::consumeError will require typeinfo for ErrorInfoBase, we
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// can avoid that by going via the C interface.
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LLVMConsumeError(llvm::wrap(J.takeError()));
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GTEST_SKIP();
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}
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}
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#define Stringify(s) Stringifyx(s)
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#define Stringifyx(s) #s
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// We define a custom exception to avoid #include-ing the <exception> header
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// which would require this test to know about the libstdc++ location.
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// its own header file.
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#define CUSTOM_EXCEPTION \
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struct custom_exception { \
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custom_exception(const char *Msg) : Message(Msg) {} \
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const char *Message; \
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};
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CUSTOM_EXCEPTION;
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std::string ExceptionCode = Stringify(CUSTOM_EXCEPTION);
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ExceptionCode +=
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R"(
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extern "C" int printf(const char*, ...);
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static void ThrowerAnError(const char* Name) {
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throw custom_exception(Name);
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}
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extern "C" int throw_exception() {
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try {
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ThrowerAnError("To be caught in JIT");
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} catch (const custom_exception& E) {
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printf("Caught: '%s'\n", E.Message);
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} catch (...) {
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printf("Unknown exception\n");
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}
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ThrowerAnError("To be caught in binary");
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return 0;
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}
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)";
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std::unique_ptr<Interpreter> Interp = createInterpreter();
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// FIXME: Re-enable the excluded target triples.
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const clang::CompilerInstance *CI = Interp->getCompilerInstance();
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const llvm::Triple &Triple = CI->getASTContext().getTargetInfo().getTriple();
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// AIX is unsupported.
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if (Triple.isOSAIX())
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GTEST_SKIP();
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// FIXME: ARM fails due to `Not implemented relocation type!`
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if (Triple.isARM())
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GTEST_SKIP();
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// FIXME: libunwind on darwin is broken, see PR49692.
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if (Triple.isOSDarwin() && (Triple.getArch() == llvm::Triple::aarch64 ||
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Triple.getArch() == llvm::Triple::aarch64_32))
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GTEST_SKIP();
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llvm::cantFail(Interp->ParseAndExecute(ExceptionCode));
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testing::internal::CaptureStdout();
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auto ThrowException =
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llvm::cantFail(Interp->getSymbolAddress("throw_exception"))
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.toPtr<int (*)()>();
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EXPECT_ANY_THROW(ThrowException());
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std::string CapturedStdOut = testing::internal::GetCapturedStdout();
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EXPECT_EQ(CapturedStdOut, "Caught: 'To be caught in JIT'\n");
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}
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} // end anonymous namespace
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