| //===- SomeDrivers.cpp ------------------------------------------*- C++ -*-===// |
| // |
| // This file is licensed under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // In this test we showcase the fact that only one LLD driver can be invoked - |
| // the ELF driver that was linked in the test binary. Calling other drivers |
| // would return a failure. When using LLD as a library, any driver can be |
| // linked into your application. |
| //===----------------------------------------------------------------------===// |
| |
| #include "lld/Common/Driver.h" |
| #include "gmock/gmock.h" |
| |
| LLD_HAS_DRIVER(elf) |
| |
| static bool lldInvoke(const char *lldExe) { |
| std::vector<const char *> args{lldExe, "--version"}; |
| lld::Result s = lld::lldMain(args, llvm::outs(), llvm::errs(), |
| {{lld::Gnu, &lld::elf::link}}); |
| return !s.retCode && s.canRunAgain; |
| } |
| |
| TEST(AsLib, SomeDrivers) { |
| // When this flag is on, we actually need the MinGW driver library, not the |
| // ELF one. Here our test only covers the case where the ELF driver is linked |
| // into the unit test binary. |
| #ifndef LLD_DEFAULT_LD_LLD_IS_MINGW |
| EXPECT_TRUE(lldInvoke("ld.lld")); // ELF |
| #endif |
| // These drivers are not linked in this unit test. |
| EXPECT_FALSE(lldInvoke("ld64.lld")); // Mach-O |
| EXPECT_FALSE(lldInvoke("lld-link")); // COFF |
| EXPECT_FALSE(lldInvoke("wasm-ld")); // Wasm |
| } |
