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