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llvm-project/clang/unittests/Driver/ToolChainTest.cpp

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//===- unittests/Driver/ToolChainTest.cpp --- ToolChain tests -------------===//
//
// Part of the LLVM Project, 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
//
//===----------------------------------------------------------------------===//
//
// Unit tests for ToolChains.
//
//===----------------------------------------------------------------------===//
#include "clang/Driver/ToolChain.h"
#include "clang/Basic/DiagnosticIDs.h"
#include "clang/Basic/DiagnosticOptions.h"
#include "clang/Basic/LLVM.h"
#include "clang/Driver/Compilation.h"
#include "clang/Driver/Driver.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/Support/VirtualFileSystem.h"
#include "llvm/Support/raw_ostream.h"
#include "gtest/gtest.h"
using namespace clang;
using namespace clang::driver;
namespace {
TEST(ToolChainTest, VFSGCCInstallation) {
IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
struct TestDiagnosticConsumer : public DiagnosticConsumer {};
DiagnosticsEngine Diags(DiagID, &*DiagOpts, new TestDiagnosticConsumer);
IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> InMemoryFileSystem(
new llvm::vfs::InMemoryFileSystem);
Driver TheDriver("/bin/clang", "arm-linux-gnueabihf", Diags,
InMemoryFileSystem);
const char *EmptyFiles[] = {
"foo.cpp",
"/bin/clang",
"/usr/lib/gcc/arm-linux-gnueabi/4.6.1/crtbegin.o",
"/usr/lib/gcc/arm-linux-gnueabi/4.6.1/crtend.o",
"/usr/lib/gcc/arm-linux-gnueabihf/4.6.3/crtbegin.o",
"/usr/lib/gcc/arm-linux-gnueabihf/4.6.3/crtend.o",
"/usr/lib/arm-linux-gnueabi/crt1.o",
"/usr/lib/arm-linux-gnueabi/crti.o",
"/usr/lib/arm-linux-gnueabi/crtn.o",
"/usr/lib/arm-linux-gnueabihf/crt1.o",
"/usr/lib/arm-linux-gnueabihf/crti.o",
"/usr/lib/arm-linux-gnueabihf/crtn.o",
"/usr/include/arm-linux-gnueabi/.keep",
"/usr/include/arm-linux-gnueabihf/.keep",
"/lib/arm-linux-gnueabi/.keep",
"/lib/arm-linux-gnueabihf/.keep"};
for (const char *Path : EmptyFiles)
InMemoryFileSystem->addFile(Path, 0,
llvm::MemoryBuffer::getMemBuffer("\n"));
std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(
{"-fsyntax-only", "--gcc-toolchain=", "--sysroot=", "foo.cpp"}));
EXPECT_TRUE(C);
std::string S;
{
llvm::raw_string_ostream OS(S);
C->getDefaultToolChain().printVerboseInfo(OS);
}
#if _WIN32
std::replace(S.begin(), S.end(), '\\', '/');
#endif
EXPECT_EQ(
"Found candidate GCC installation: "
"/usr/lib/gcc/arm-linux-gnueabihf/4.6.3\n"
"Selected GCC installation: /usr/lib/gcc/arm-linux-gnueabihf/4.6.3\n"
"Candidate multilib: .;@m32\n"
"Selected multilib: .;@m32\n",
S);
}
TEST(ToolChainTest, VFSGCCInstallationRelativeDir) {
IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
struct TestDiagnosticConsumer : public DiagnosticConsumer {};
DiagnosticsEngine Diags(DiagID, &*DiagOpts, new TestDiagnosticConsumer);
IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> InMemoryFileSystem(
new llvm::vfs::InMemoryFileSystem);
Driver TheDriver("/home/test/bin/clang", "arm-linux-gnueabi", Diags,
InMemoryFileSystem);
const char *EmptyFiles[] = {
"foo.cpp", "/home/test/lib/gcc/arm-linux-gnueabi/4.6.1/crtbegin.o",
"/home/test/include/arm-linux-gnueabi/.keep"};
for (const char *Path : EmptyFiles)
InMemoryFileSystem->addFile(Path, 0,
llvm::MemoryBuffer::getMemBuffer("\n"));
std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(
{"-fsyntax-only", "--gcc-toolchain=", "foo.cpp"}));
EXPECT_TRUE(C);
std::string S;
{
llvm::raw_string_ostream OS(S);
C->getDefaultToolChain().printVerboseInfo(OS);
}
#if _WIN32
std::replace(S.begin(), S.end(), '\\', '/');
#endif
EXPECT_EQ("Found candidate GCC installation: "
"/home/test/bin/../lib/gcc/arm-linux-gnueabi/4.6.1\n"
"Selected GCC installation: "
"/home/test/bin/../lib/gcc/arm-linux-gnueabi/4.6.1\n"
"Candidate multilib: .;@m32\n"
"Selected multilib: .;@m32\n",
S);
}
TEST(ToolChainTest, DefaultDriverMode) {
IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
struct TestDiagnosticConsumer : public DiagnosticConsumer {};
DiagnosticsEngine Diags(DiagID, &*DiagOpts, new TestDiagnosticConsumer);
IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> InMemoryFileSystem(
new llvm::vfs::InMemoryFileSystem);
Driver CCDriver("/home/test/bin/clang", "arm-linux-gnueabi", Diags,
InMemoryFileSystem);
CCDriver.setCheckInputsExist(false);
Driver CXXDriver("/home/test/bin/clang++", "arm-linux-gnueabi", Diags,
InMemoryFileSystem);
CXXDriver.setCheckInputsExist(false);
Driver CLDriver("/home/test/bin/clang-cl", "arm-linux-gnueabi", Diags,
InMemoryFileSystem);
CLDriver.setCheckInputsExist(false);
std::unique_ptr<Compilation> CC(CCDriver.BuildCompilation(
{ "/home/test/bin/clang", "foo.cpp"}));
std::unique_ptr<Compilation> CXX(CXXDriver.BuildCompilation(
{ "/home/test/bin/clang++", "foo.cpp"}));
std::unique_ptr<Compilation> CL(CLDriver.BuildCompilation(
{ "/home/test/bin/clang-cl", "foo.cpp"}));
EXPECT_TRUE(CC);
EXPECT_TRUE(CXX);
EXPECT_TRUE(CL);
EXPECT_TRUE(CCDriver.CCCIsCC());
EXPECT_TRUE(CXXDriver.CCCIsCXX());
EXPECT_TRUE(CLDriver.IsCLMode());
}
TEST(ToolChainTest, InvalidArgument) {
IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
struct TestDiagnosticConsumer : public DiagnosticConsumer {};
IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
DiagnosticsEngine Diags(DiagID, &*DiagOpts, new TestDiagnosticConsumer);
Driver TheDriver("/bin/clang", "arm-linux-gnueabihf", Diags);
std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(
{"-fsyntax-only", "-fan-unknown-option", "foo.cpp"}));
EXPECT_TRUE(C);
EXPECT_TRUE(C->containsError());
}
TEST(ToolChainTest, ParsedClangName) {
ParsedClangName Empty;
EXPECT_TRUE(Empty.TargetPrefix.empty());
EXPECT_TRUE(Empty.ModeSuffix.empty());
EXPECT_TRUE(Empty.DriverMode == nullptr);
EXPECT_FALSE(Empty.TargetIsValid);
ParsedClangName DriverOnly("clang", nullptr);
EXPECT_TRUE(DriverOnly.TargetPrefix.empty());
EXPECT_TRUE(DriverOnly.ModeSuffix == "clang");
EXPECT_TRUE(DriverOnly.DriverMode == nullptr);
EXPECT_FALSE(DriverOnly.TargetIsValid);
ParsedClangName DriverOnly2("clang++", "--driver-mode=g++");
EXPECT_TRUE(DriverOnly2.TargetPrefix.empty());
EXPECT_TRUE(DriverOnly2.ModeSuffix == "clang++");
EXPECT_STREQ(DriverOnly2.DriverMode, "--driver-mode=g++");
EXPECT_FALSE(DriverOnly2.TargetIsValid);
ParsedClangName TargetAndMode("i386", "clang-g++", "--driver-mode=g++", true);
EXPECT_TRUE(TargetAndMode.TargetPrefix == "i386");
EXPECT_TRUE(TargetAndMode.ModeSuffix == "clang-g++");
EXPECT_STREQ(TargetAndMode.DriverMode, "--driver-mode=g++");
EXPECT_TRUE(TargetAndMode.TargetIsValid);
}
TEST(ToolChainTest, GetTargetAndMode) {
llvm::InitializeAllTargets();
std::string IgnoredError;
if (!llvm::TargetRegistry::lookupTarget("x86_64", IgnoredError))
return;
ParsedClangName Res = ToolChain::getTargetAndModeFromProgramName("clang");
EXPECT_TRUE(Res.TargetPrefix.empty());
EXPECT_TRUE(Res.ModeSuffix == "clang");
EXPECT_TRUE(Res.DriverMode == nullptr);
EXPECT_FALSE(Res.TargetIsValid);
Res = ToolChain::getTargetAndModeFromProgramName("clang++");
EXPECT_TRUE(Res.TargetPrefix.empty());
EXPECT_TRUE(Res.ModeSuffix == "clang++");
EXPECT_STREQ(Res.DriverMode, "--driver-mode=g++");
EXPECT_FALSE(Res.TargetIsValid);
Res = ToolChain::getTargetAndModeFromProgramName("clang++6.0");
EXPECT_TRUE(Res.TargetPrefix.empty());
EXPECT_TRUE(Res.ModeSuffix == "clang++");
EXPECT_STREQ(Res.DriverMode, "--driver-mode=g++");
EXPECT_FALSE(Res.TargetIsValid);
Res = ToolChain::getTargetAndModeFromProgramName("clang++-release");
EXPECT_TRUE(Res.TargetPrefix.empty());
EXPECT_TRUE(Res.ModeSuffix == "clang++");
EXPECT_STREQ(Res.DriverMode, "--driver-mode=g++");
EXPECT_FALSE(Res.TargetIsValid);
Res = ToolChain::getTargetAndModeFromProgramName("x86_64-clang++");
EXPECT_TRUE(Res.TargetPrefix == "x86_64");
EXPECT_TRUE(Res.ModeSuffix == "clang++");
EXPECT_STREQ(Res.DriverMode, "--driver-mode=g++");
EXPECT_TRUE(Res.TargetIsValid);
Res = ToolChain::getTargetAndModeFromProgramName(
"x86_64-linux-gnu-clang-c++");
EXPECT_TRUE(Res.TargetPrefix == "x86_64-linux-gnu");
EXPECT_TRUE(Res.ModeSuffix == "clang-c++");
EXPECT_STREQ(Res.DriverMode, "--driver-mode=g++");
EXPECT_TRUE(Res.TargetIsValid);
Res = ToolChain::getTargetAndModeFromProgramName(
"x86_64-linux-gnu-clang-c++-tot");
EXPECT_TRUE(Res.TargetPrefix == "x86_64-linux-gnu");
EXPECT_TRUE(Res.ModeSuffix == "clang-c++");
EXPECT_STREQ(Res.DriverMode, "--driver-mode=g++");
EXPECT_TRUE(Res.TargetIsValid);
Res = ToolChain::getTargetAndModeFromProgramName("qqq");
EXPECT_TRUE(Res.TargetPrefix.empty());
EXPECT_TRUE(Res.ModeSuffix.empty());
EXPECT_TRUE(Res.DriverMode == nullptr);
EXPECT_FALSE(Res.TargetIsValid);
Res = ToolChain::getTargetAndModeFromProgramName("x86_64-qqq");
EXPECT_TRUE(Res.TargetPrefix.empty());
EXPECT_TRUE(Res.ModeSuffix.empty());
EXPECT_TRUE(Res.DriverMode == nullptr);
EXPECT_FALSE(Res.TargetIsValid);
Res = ToolChain::getTargetAndModeFromProgramName("qqq-clang-cl");
EXPECT_TRUE(Res.TargetPrefix == "qqq");
EXPECT_TRUE(Res.ModeSuffix == "clang-cl");
EXPECT_STREQ(Res.DriverMode, "--driver-mode=cl");
EXPECT_FALSE(Res.TargetIsValid);
}
} // end anonymous namespace.
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