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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/Basic/TargetOptions.h"
#include "clang/Driver/Compilation.h"
#include "clang/Driver/Driver.h"
#include "clang/Frontend/CompilerInstance.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/Support/VirtualFileSystem.h"
#include "llvm/Support/raw_ostream.h"
#include "gtest/gtest.h"
#include <memory>
#include "SimpleDiagnosticConsumer.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 {};
IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> InMemoryFileSystem(
new llvm::vfs::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",
"/sysroot/usr/lib/gcc/arm-linux-gnueabi/4.5.1/crtbegin.o",
"/sysroot/usr/lib/gcc/arm-linux-gnueabi/4.5.1/crtend.o",
"/sysroot/usr/lib/gcc/arm-linux-gnueabihf/4.5.3/crtbegin.o",
"/sysroot/usr/lib/gcc/arm-linux-gnueabihf/4.5.3/crtend.o",
"/sysroot/usr/lib/arm-linux-gnueabi/crt1.o",
"/sysroot/usr/lib/arm-linux-gnueabi/crti.o",
"/sysroot/usr/lib/arm-linux-gnueabi/crtn.o",
"/sysroot/usr/lib/arm-linux-gnueabihf/crt1.o",
"/sysroot/usr/lib/arm-linux-gnueabihf/crti.o",
"/sysroot/usr/lib/arm-linux-gnueabihf/crtn.o",
"/sysroot/usr/include/arm-linux-gnueabi/.keep",
"/sysroot/usr/include/arm-linux-gnueabihf/.keep",
"/sysroot/lib/arm-linux-gnueabi/.keep",
"/sysroot/lib/arm-linux-gnueabihf/.keep",
};
for (const char *Path : EmptyFiles)
InMemoryFileSystem->addFile(Path, 0,
llvm::MemoryBuffer::getMemBuffer("\n"));
{
DiagnosticsEngine Diags(DiagID, &*DiagOpts, new TestDiagnosticConsumer);
Driver TheDriver("/bin/clang", "arm-linux-gnueabihf", Diags,
"clang LLVM compiler", InMemoryFileSystem);
std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(
{"-fsyntax-only", "--gcc-toolchain=", "--sysroot=", "foo.cpp"}));
ASSERT_TRUE(C);
std::string S;
{
llvm::raw_string_ostream OS(S);
C->getDefaultToolChain().printVerboseInfo(OS);
}
if (is_style_windows(llvm::sys::path::Style::native))
std::replace(S.begin(), S.end(), '\\', '/');
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);
}
{
DiagnosticsEngine Diags(DiagID, &*DiagOpts, new TestDiagnosticConsumer);
Driver TheDriver("/bin/clang", "arm-linux-gnueabihf", Diags,
"clang LLVM compiler", InMemoryFileSystem);
std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(
{"-fsyntax-only", "--gcc-toolchain=", "--sysroot=/sysroot",
"foo.cpp"}));
ASSERT_TRUE(C);
std::string S;
{
llvm::raw_string_ostream OS(S);
C->getDefaultToolChain().printVerboseInfo(OS);
}
if (is_style_windows(llvm::sys::path::Style::native))
std::replace(S.begin(), S.end(), '\\', '/');
// Test that 4.5.3 from --sysroot is not overridden by 4.6.3 (larger
// version) from /usr.
EXPECT_EQ("Found candidate GCC installation: "
"/sysroot/usr/lib/gcc/arm-linux-gnueabihf/4.5.3\n"
"Selected GCC installation: "
"/sysroot/usr/lib/gcc/arm-linux-gnueabihf/4.5.3\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,
"clang LLVM compiler", 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 (is_style_windows(llvm::sys::path::Style::native))
std::replace(S.begin(), S.end(), '\\', '/');
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,
"clang LLVM compiler", InMemoryFileSystem);
CCDriver.setCheckInputsExist(false);
Driver CXXDriver("/home/test/bin/clang++", "arm-linux-gnueabi", Diags,
"clang LLVM compiler", InMemoryFileSystem);
CXXDriver.setCheckInputsExist(false);
Driver CLDriver("/home/test/bin/clang-cl", "arm-linux-gnueabi", Diags,
"clang LLVM compiler", 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);
Res = ToolChain::getTargetAndModeFromProgramName("clang-dxc");
EXPECT_TRUE(Res.TargetPrefix.empty());
EXPECT_TRUE(Res.ModeSuffix == "clang-dxc");
EXPECT_STREQ(Res.DriverMode, "--driver-mode=dxc");
EXPECT_FALSE(Res.TargetIsValid);
}
TEST(ToolChainTest, CommandOutput) {
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,
"clang LLVM compiler", InMemoryFileSystem);
CCDriver.setCheckInputsExist(false);
std::unique_ptr<Compilation> CC(
CCDriver.BuildCompilation({"/home/test/bin/clang", "foo.cpp"}));
const JobList &Jobs = CC->getJobs();
const auto &CmdCompile = Jobs.getJobs().front();
const auto &InFile = CmdCompile->getInputInfos().front().getFilename();
EXPECT_STREQ(InFile, "foo.cpp");
auto ObjFile = CmdCompile->getOutputFilenames().front();
EXPECT_TRUE(StringRef(ObjFile).endswith(".o"));
const auto &CmdLink = Jobs.getJobs().back();
const auto LinkInFile = CmdLink->getInputInfos().front().getFilename();
EXPECT_EQ(ObjFile, LinkInFile);
auto ExeFile = CmdLink->getOutputFilenames().front();
EXPECT_EQ("a.out", ExeFile);
}
TEST(ToolChainTest, PostCallback) {
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);
// The executable path must not exist.
Driver CCDriver("/home/test/bin/clang", "arm-linux-gnueabi", Diags,
"clang LLVM compiler", InMemoryFileSystem);
CCDriver.setCheckInputsExist(false);
std::unique_ptr<Compilation> CC(
CCDriver.BuildCompilation({"/home/test/bin/clang", "foo.cpp"}));
bool CallbackHasCalled = false;
CC->setPostCallback(
[&](const Command &C, int Ret) { CallbackHasCalled = true; });
const JobList &Jobs = CC->getJobs();
auto &CmdCompile = Jobs.getJobs().front();
const Command *FailingCmd = nullptr;
CC->ExecuteCommand(*CmdCompile, FailingCmd);
EXPECT_TRUE(CallbackHasCalled);
}
TEST(GetDriverMode, PrefersLastDriverMode) {
static constexpr const char *Args[] = {"clang-cl", "--driver-mode=foo",
"--driver-mode=bar", "foo.cpp"};
EXPECT_EQ(getDriverMode(Args[0], llvm::makeArrayRef(Args).slice(1)), "bar");
}
struct SimpleDiagnosticConsumer : public DiagnosticConsumer {
void HandleDiagnostic(DiagnosticsEngine::Level DiagLevel,
const Diagnostic &Info) override {
if (DiagLevel == DiagnosticsEngine::Level::Error) {
Errors.emplace_back();
Info.FormatDiagnostic(Errors.back());
} else {
Msgs.emplace_back();
Info.FormatDiagnostic(Msgs.back());
}
}
void clear() override {
Msgs.clear();
Errors.clear();
DiagnosticConsumer::clear();
}
std::vector<SmallString<32>> Msgs;
std::vector<SmallString<32>> Errors;
};
TEST(ToolChainTest, ConfigFileSearch) {
IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
struct TestDiagnosticConsumer : public DiagnosticConsumer {};
DiagnosticsEngine Diags(DiagID, &*DiagOpts, new TestDiagnosticConsumer);
IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> FS(
new llvm::vfs::InMemoryFileSystem);
#ifdef _WIN32
const char *TestRoot = "C:\\";
#else
const char *TestRoot = "/";
#endif
FS->setCurrentWorkingDirectory(TestRoot);
FS->addFile(
"/opt/sdk/root.cfg", 0,
llvm::MemoryBuffer::getMemBuffer("--sysroot=/opt/sdk/platform0\n"));
FS->addFile(
"/home/test/sdk/root.cfg", 0,
llvm::MemoryBuffer::getMemBuffer("--sysroot=/opt/sdk/platform1\n"));
FS->addFile(
"/home/test/bin/root.cfg", 0,
llvm::MemoryBuffer::getMemBuffer("--sysroot=/opt/sdk/platform2\n"));
{
Driver TheDriver("/home/test/bin/clang", "arm-linux-gnueabi", Diags,
"clang LLVM compiler", FS);
std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(
{"/home/test/bin/clang", "--config", "root.cfg",
"--config-system-dir=/opt/sdk", "--config-user-dir=/home/test/sdk"}));
ASSERT_TRUE(C);
ASSERT_FALSE(C->containsError());
EXPECT_EQ("/opt/sdk/platform1", TheDriver.SysRoot);
}
{
Driver TheDriver("/home/test/bin/clang", "arm-linux-gnueabi", Diags,
"clang LLVM compiler", FS);
std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(
{"/home/test/bin/clang", "--config", "root.cfg",
"--config-system-dir=/opt/sdk", "--config-user-dir="}));
ASSERT_TRUE(C);
ASSERT_FALSE(C->containsError());
EXPECT_EQ("/opt/sdk/platform0", TheDriver.SysRoot);
}
{
Driver TheDriver("/home/test/bin/clang", "arm-linux-gnueabi", Diags,
"clang LLVM compiler", FS);
std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(
{"/home/test/bin/clang", "--config", "root.cfg",
"--config-system-dir=", "--config-user-dir="}));
ASSERT_TRUE(C);
ASSERT_FALSE(C->containsError());
EXPECT_EQ("/opt/sdk/platform2", TheDriver.SysRoot);
}
}
struct FileSystemWithError : public llvm::vfs::FileSystem {
llvm::ErrorOr<llvm::vfs::Status> status(const Twine &Path) override {
return std::make_error_code(std::errc::no_such_file_or_directory);
}
llvm::ErrorOr<std::unique_ptr<llvm::vfs::File>>
openFileForRead(const Twine &Path) override {
return std::make_error_code(std::errc::permission_denied);
}
llvm::vfs::directory_iterator dir_begin(const Twine &Dir,
std::error_code &EC) override {
return llvm::vfs::directory_iterator();
}
std::error_code setCurrentWorkingDirectory(const Twine &Path) override {
return std::make_error_code(std::errc::permission_denied);
}
llvm::ErrorOr<std::string> getCurrentWorkingDirectory() const override {
return std::make_error_code(std::errc::permission_denied);
}
};
TEST(ToolChainTest, ConfigFileError) {
IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
std::unique_ptr<SimpleDiagnosticConsumer> DiagConsumer(
new SimpleDiagnosticConsumer());
DiagnosticsEngine Diags(DiagID, &*DiagOpts, DiagConsumer.get(), false);
IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS(new FileSystemWithError);
Driver TheDriver("/home/test/bin/clang", "arm-linux-gnueabi", Diags,
"clang LLVM compiler", FS);
std::unique_ptr<Compilation> C(
TheDriver.BuildCompilation({"/home/test/bin/clang", "--no-default-config",
"--config", "./root.cfg", "--version"}));
ASSERT_TRUE(C);
ASSERT_TRUE(C->containsError());
EXPECT_EQ(1U, Diags.getNumErrors());
EXPECT_STREQ("configuration file './root.cfg' cannot be opened: cannot get "
"absolute path",
DiagConsumer->Errors[0].c_str());
}
TEST(ToolChainTest, BadConfigFile) {
IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
std::unique_ptr<SimpleDiagnosticConsumer> DiagConsumer(
new SimpleDiagnosticConsumer());
DiagnosticsEngine Diags(DiagID, &*DiagOpts, DiagConsumer.get(), false);
IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> FS(
new llvm::vfs::InMemoryFileSystem);
#ifdef _WIN32
const char *TestRoot = "C:\\";
#define FILENAME "C:/opt/root.cfg"
#define DIRNAME "C:/opt"
#else
const char *TestRoot = "/";
#define FILENAME "/opt/root.cfg"
#define DIRNAME "/opt"
#endif
// UTF-16 string must be aligned on 2-byte boundary. Strings and char arrays
// do not provide necessary alignment, so copy constant string into properly
// allocated memory in heap.
llvm::BumpPtrAllocator Alloc;
char *StrBuff = (char *)Alloc.Allocate(16, 4);
std::memset(StrBuff, 0, 16);
std::memcpy(StrBuff, "\xFF\xFE\x00\xD8\x00\x00", 6);
StringRef BadUTF(StrBuff, 6);
FS->setCurrentWorkingDirectory(TestRoot);
FS->addFile("/opt/root.cfg", 0, llvm::MemoryBuffer::getMemBuffer(BadUTF));
FS->addFile("/home/user/test.cfg", 0,
llvm::MemoryBuffer::getMemBuffer("@file.rsp"));
{
Driver TheDriver("/home/test/bin/clang", "arm-linux-gnueabi", Diags,
"clang LLVM compiler", FS);
std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(
{"/home/test/bin/clang", "--config", "/opt/root.cfg", "--version"}));
ASSERT_TRUE(C);
ASSERT_TRUE(C->containsError());
EXPECT_EQ(1U, DiagConsumer->Errors.size());
EXPECT_STREQ("cannot read configuration file '" FILENAME
"': Could not convert UTF16 to UTF8",
DiagConsumer->Errors[0].c_str());
}
DiagConsumer->clear();
{
Driver TheDriver("/home/test/bin/clang", "arm-linux-gnueabi", Diags,
"clang LLVM compiler", FS);
std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(
{"/home/test/bin/clang", "--config", "/opt", "--version"}));
ASSERT_TRUE(C);
ASSERT_TRUE(C->containsError());
EXPECT_EQ(1U, DiagConsumer->Errors.size());
EXPECT_STREQ("configuration file '" DIRNAME
"' cannot be opened: not a regular file",
DiagConsumer->Errors[0].c_str());
}
DiagConsumer->clear();
{
Driver TheDriver("/home/test/bin/clang", "arm-linux-gnueabi", Diags,
"clang LLVM compiler", FS);
std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(
{"/home/test/bin/clang", "--config", "root",
"--config-system-dir=", "--config-user-dir=", "--version"}));
ASSERT_TRUE(C);
ASSERT_TRUE(C->containsError());
EXPECT_EQ(1U, DiagConsumer->Errors.size());
EXPECT_STREQ("configuration file 'root' cannot be found",
DiagConsumer->Errors[0].c_str());
}
#undef FILENAME
#undef DIRNAME
}
TEST(ToolChainTest, ConfigInexistentInclude) {
IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
std::unique_ptr<SimpleDiagnosticConsumer> DiagConsumer(
new SimpleDiagnosticConsumer());
DiagnosticsEngine Diags(DiagID, &*DiagOpts, DiagConsumer.get(), false);
IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> FS(
new llvm::vfs::InMemoryFileSystem);
#ifdef _WIN32
const char *TestRoot = "C:\\";
#define USERCONFIG "C:\\home\\user\\test.cfg"
#define UNEXISTENT "C:\\home\\user\\file.rsp"
#else
const char *TestRoot = "/";
#define USERCONFIG "/home/user/test.cfg"
#define UNEXISTENT "/home/user/file.rsp"
#endif
FS->setCurrentWorkingDirectory(TestRoot);
FS->addFile("/home/user/test.cfg", 0,
llvm::MemoryBuffer::getMemBuffer("@file.rsp"));
{
Driver TheDriver("/home/test/bin/clang", "arm-linux-gnueabi", Diags,
"clang LLVM compiler", FS);
std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(
{"/home/test/bin/clang", "--config", "test.cfg",
"--config-system-dir=", "--config-user-dir=/home/user", "--version"}));
ASSERT_TRUE(C);
ASSERT_TRUE(C->containsError());
EXPECT_EQ(1U, DiagConsumer->Errors.size());
EXPECT_STRCASEEQ("cannot read configuration file '" USERCONFIG
"': cannot not open file '" UNEXISTENT
"': no such file or directory",
DiagConsumer->Errors[0].c_str());
}
#undef USERCONFIG
#undef UNEXISTENT
}
TEST(ToolChainTest, ConfigRecursiveInclude) {
IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
std::unique_ptr<SimpleDiagnosticConsumer> DiagConsumer(
new SimpleDiagnosticConsumer());
DiagnosticsEngine Diags(DiagID, &*DiagOpts, DiagConsumer.get(), false);
IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> FS(
new llvm::vfs::InMemoryFileSystem);
#ifdef _WIN32
const char *TestRoot = "C:\\";
#define USERCONFIG "C:\\home\\user\\test.cfg"
#define INCLUDED1 "C:\\home\\user\\file1.cfg"
#else
const char *TestRoot = "/";
#define USERCONFIG "/home/user/test.cfg"
#define INCLUDED1 "/home/user/file1.cfg"
#endif
FS->setCurrentWorkingDirectory(TestRoot);
FS->addFile("/home/user/test.cfg", 0,
llvm::MemoryBuffer::getMemBuffer("@file1.cfg"));
FS->addFile("/home/user/file1.cfg", 0,
llvm::MemoryBuffer::getMemBuffer("@file2.cfg"));
FS->addFile("/home/user/file2.cfg", 0,
llvm::MemoryBuffer::getMemBuffer("@file3.cfg"));
FS->addFile("/home/user/file3.cfg", 0,
llvm::MemoryBuffer::getMemBuffer("@file1.cfg"));
{
Driver TheDriver("/home/test/bin/clang", "arm-linux-gnueabi", Diags,
"clang LLVM compiler", FS);
std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(
{"/home/test/bin/clang", "--config", "test.cfg",
"--config-system-dir=", "--config-user-dir=/home/user", "--version"}));
ASSERT_TRUE(C);
ASSERT_TRUE(C->containsError());
EXPECT_EQ(1U, DiagConsumer->Errors.size());
EXPECT_STREQ("cannot read configuration file '" USERCONFIG
"': recursive expansion of: '" INCLUDED1 "'",
DiagConsumer->Errors[0].c_str());
}
#undef USERCONFIG
#undef INCLUDED1
}
TEST(ToolChainTest, NestedConfigFile) {
IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
struct TestDiagnosticConsumer : public DiagnosticConsumer {};
DiagnosticsEngine Diags(DiagID, &*DiagOpts, new TestDiagnosticConsumer);
IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> FS(
new llvm::vfs::InMemoryFileSystem);
#ifdef _WIN32
const char *TestRoot = "C:\\";
#else
const char *TestRoot = "/";
#endif
FS->setCurrentWorkingDirectory(TestRoot);
FS->addFile("/opt/sdk/root.cfg", 0,
llvm::MemoryBuffer::getMemBuffer("--config=platform.cfg\n"));
FS->addFile("/opt/sdk/platform.cfg", 0,
llvm::MemoryBuffer::getMemBuffer("--sysroot=/platform-sys\n"));
FS->addFile("/home/test/bin/platform.cfg", 0,
llvm::MemoryBuffer::getMemBuffer("--sysroot=/platform-bin\n"));
SmallString<128> ClangExecutable("/home/test/bin/clang");
FS->makeAbsolute(ClangExecutable);
// User file is absent - use system definitions.
{
Driver TheDriver(ClangExecutable, "arm-linux-gnueabi", Diags,
"clang LLVM compiler", FS);
std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(
{"/home/test/bin/clang", "--config", "root.cfg",
"--config-system-dir=/opt/sdk", "--config-user-dir=/home/test/sdk"}));
ASSERT_TRUE(C);
ASSERT_FALSE(C->containsError());
EXPECT_EQ("/platform-sys", TheDriver.SysRoot);
}
// User file overrides system definitions.
FS->addFile("/home/test/sdk/platform.cfg", 0,
llvm::MemoryBuffer::getMemBuffer("--sysroot=/platform-user\n"));
{
Driver TheDriver(ClangExecutable, "arm-linux-gnueabi", Diags,
"clang LLVM compiler", FS);
std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(
{"/home/test/bin/clang", "--config", "root.cfg",
"--config-system-dir=/opt/sdk", "--config-user-dir=/home/test/sdk"}));
ASSERT_TRUE(C);
ASSERT_FALSE(C->containsError());
EXPECT_EQ("/platform-user", TheDriver.SysRoot);
}
}
} // end anonymous namespace.
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