e1a5bb59b9
This change means that debugger support only needs to be linked in if it's used. The code size of debugger support is expected to increase as we improve it (e.g. pulling in DWARF parsing), so making it an optional extra is useful for controlling final binary sizes.
128 lines
4.2 KiB
C++
128 lines
4.2 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().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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