cb424d7448
verify-patch-sanity.py validates every active recipe .patch has internally- consistent hunk line counts — catching the 'malformed patch at line N' failure at commit/CI/preflight time instead of hours into a cook. This cycle hit that class three times (qtwaylandscanner, sddm, xwayland), each only discovered when cookbook tried to apply the patch. Running it across the repo found 29 latent malformed patches (validated against GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22'). They were harmless only because they sit in vendored recipes (baked, not re- applied) — but would fail on any version-bump re-derivation. --fix recounts the hunk headers (body untouched) and repaired all 29. Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test (test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats (empty placeholders, bare-@@ git hunks).
303 lines
12 KiB
C++
303 lines
12 KiB
C++
//===-- CppModuleConfigurationTest.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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#include "Plugins/ExpressionParser/Clang/CppModuleConfiguration.h"
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#include "Plugins/ExpressionParser/Clang/ClangHost.h"
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#include "TestingSupport/SubsystemRAII.h"
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#include "lldb/Host/FileSystem.h"
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#include "lldb/Host/HostInfo.h"
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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using namespace lldb_private;
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namespace {
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struct CppModuleConfigurationTest : public testing::Test {
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llvm::MemoryBufferRef m_empty_buffer;
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llvm::IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> m_fs;
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CppModuleConfigurationTest()
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: m_empty_buffer("", "<empty buffer>"),
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m_fs(new llvm::vfs::InMemoryFileSystem()) {}
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void SetUp() override {
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FileSystem::Initialize(m_fs);
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HostInfo::Initialize();
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}
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void TearDown() override {
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HostInfo::Terminate();
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FileSystem::Terminate();
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}
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/// Utility function turning a list of paths into a FileSpecList.
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FileSpecList makeFiles(llvm::ArrayRef<std::string> paths) {
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FileSpecList result;
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for (const std::string &path : paths) {
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result.Append(FileSpec(path, FileSpec::Style::posix));
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if (!m_fs->addFileNoOwn(path, static_cast<time_t>(0), m_empty_buffer))
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llvm_unreachable("Invalid test configuration?");
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}
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return result;
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}
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};
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} // namespace
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/// Returns the Clang resource include directory.
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static std::string ResourceInc() {
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llvm::SmallString<256> resource_dir;
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llvm::sys::path::append(resource_dir, GetClangResourceDir().GetPath(),
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"include");
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return std::string(resource_dir);
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}
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TEST_F(CppModuleConfigurationTest, Linux) {
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// Test the average Linux configuration.
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std::string usr = "/usr/include";
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std::string libcpp = "/usr/include/c++/v1";
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std::vector<std::string> files = {// C library
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usr + "/stdio.h",
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// C++ library
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libcpp + "/vector",
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libcpp + "/module.modulemap"};
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CppModuleConfiguration config(makeFiles(files), llvm::Triple());
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EXPECT_THAT(config.GetImportedModules(), testing::ElementsAre("std"));
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EXPECT_THAT(config.GetIncludeDirs(),
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testing::ElementsAre(libcpp, ResourceInc(), usr));
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}
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TEST_F(CppModuleConfigurationTest, LinuxTargetSpecificInclude) {
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// Test the average Linux configuration.
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std::string usr = "/usr/include";
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std::string usr_target = "/usr/include/x86_64-linux-gnu";
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std::string libcpp = "/usr/include/c++/v1";
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std::string libcpp_target = "/usr/include/x86_64-unknown-linux-gnu/c++/v1";
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std::vector<std::string> files = {
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// C library
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usr + "/stdio.h", usr_target + "/sys/cdefs.h",
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// C++ library
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libcpp + "/vector", libcpp + "/module.modulemap"};
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CppModuleConfiguration config(makeFiles(files),
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llvm::Triple("x86_64-unknown-linux-gnu"));
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EXPECT_THAT(config.GetImportedModules(), testing::ElementsAre("std"));
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EXPECT_THAT(config.GetIncludeDirs(),
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testing::ElementsAre(libcpp, ResourceInc(), usr, usr_target,
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libcpp_target));
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}
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TEST_F(CppModuleConfigurationTest, Sysroot) {
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// Test that having a sysroot for the whole system works fine.
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std::string libcpp = "/home/user/sysroot/usr/include/c++/v1";
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std::string usr = "/home/user/sysroot/usr/include";
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std::vector<std::string> files = {// C library
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usr + "/stdio.h",
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// C++ library
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libcpp + "/vector",
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libcpp + "/module.modulemap"};
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CppModuleConfiguration config(makeFiles(files), llvm::Triple());
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EXPECT_THAT(config.GetImportedModules(), testing::ElementsAre("std"));
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EXPECT_THAT(config.GetIncludeDirs(),
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testing::ElementsAre(libcpp, ResourceInc(), usr));
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}
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TEST_F(CppModuleConfigurationTest, LinuxLocalLibCpp) {
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// Test that a locally build libc++ is detected.
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std::string usr = "/usr/include";
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std::string libcpp = "/home/user/llvm-build/include/c++/v1";
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std::vector<std::string> files = {// C library
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usr + "/stdio.h",
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// C++ library
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libcpp + "/vector",
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libcpp + "/module.modulemap"};
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CppModuleConfiguration config(makeFiles(files), llvm::Triple());
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EXPECT_THAT(config.GetImportedModules(), testing::ElementsAre("std"));
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EXPECT_THAT(config.GetIncludeDirs(),
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testing::ElementsAre(libcpp, ResourceInc(), usr));
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}
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TEST_F(CppModuleConfigurationTest, UnrelatedLibrary) {
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// Test that having an unrelated library in /usr/include doesn't break.
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std::string usr = "/usr/include";
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std::string libcpp = "/home/user/llvm-build/include/c++/v1";
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std::vector<std::string> files = {// C library
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usr + "/stdio.h",
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// unrelated library
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usr + "/boost/vector",
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// C++ library
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libcpp + "/vector",
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libcpp + "/module.modulemap"};
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CppModuleConfiguration config(makeFiles(files), llvm::Triple());
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EXPECT_THAT(config.GetImportedModules(), testing::ElementsAre("std"));
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EXPECT_THAT(config.GetIncludeDirs(),
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testing::ElementsAre(libcpp, ResourceInc(), usr));
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}
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TEST_F(CppModuleConfigurationTest, UnrelatedLibraryWithTargetSpecificInclude) {
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// Test that having an unrelated library in /usr/include doesn't break.
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std::string usr = "/usr/include";
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std::string libcpp = "/home/user/llvm-build/include/c++/v1";
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std::string libcpp_target =
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"/home/user/llvm-build/include/x86_64-unknown-linux-gnu/c++/v1";
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std::vector<std::string> files = {// C library
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usr + "/stdio.h",
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// unrelated library
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usr + "/boost/vector",
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// C++ library
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libcpp + "/vector",
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libcpp + "/module.modulemap"};
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CppModuleConfiguration config(makeFiles(files),
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llvm::Triple("x86_64-unknown-linux-gnu"));
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EXPECT_THAT(config.GetImportedModules(), testing::ElementsAre("std"));
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EXPECT_THAT(config.GetIncludeDirs(),
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testing::ElementsAre(libcpp, ResourceInc(), usr, libcpp_target));
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}
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TEST_F(CppModuleConfigurationTest, Xcode) {
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// Test detection of libc++ coming from Xcode with generic platform names.
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std::string p = "/Applications/Xcode.app/Contents/Developer/";
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std::string libcpp = p + "Toolchains/B.xctoolchain/usr/include/c++/v1";
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std::string usr =
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p + "Platforms/A.platform/Developer/SDKs/OSVers.sdk/usr/include";
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std::vector<std::string> files = {
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// C library
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usr + "/stdio.h",
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// C++ library
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libcpp + "/vector",
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libcpp + "/module.modulemap",
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};
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CppModuleConfiguration config(makeFiles(files), llvm::Triple());
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EXPECT_THAT(config.GetImportedModules(), testing::ElementsAre("std"));
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EXPECT_THAT(config.GetIncludeDirs(),
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testing::ElementsAre(libcpp, ResourceInc(), usr));
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}
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TEST_F(CppModuleConfigurationTest, LibCppV2) {
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// Test that a "v2" of libc++ is still correctly detected.
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std::string libcpp = "/usr/include/c++/v2";
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std::vector<std::string> files = {// C library
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"/usr/include/stdio.h",
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// C++ library
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libcpp + "/vector",
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libcpp + "/module.modulemap"};
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CppModuleConfiguration config(makeFiles(files), llvm::Triple());
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EXPECT_THAT(config.GetImportedModules(), testing::ElementsAre("std"));
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EXPECT_THAT(config.GetIncludeDirs(),
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testing::ElementsAre("/usr/include/c++/v2", ResourceInc(),
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"/usr/include"));
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}
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TEST_F(CppModuleConfigurationTest, UnknownLibCppFile) {
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// Test that having some unknown file in the libc++ path doesn't break
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// anything.
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std::string libcpp = "/usr/include/c++/v1";
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std::vector<std::string> files = {// C library
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"/usr/include/stdio.h",
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// C++ library
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libcpp + "/non_existing_file",
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libcpp + "/module.modulemap",
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libcpp + "/vector"};
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CppModuleConfiguration config(makeFiles(files), llvm::Triple());
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EXPECT_THAT(config.GetImportedModules(), testing::ElementsAre("std"));
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EXPECT_THAT(config.GetIncludeDirs(),
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testing::ElementsAre("/usr/include/c++/v1", ResourceInc(),
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"/usr/include"));
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}
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TEST_F(CppModuleConfigurationTest, MissingUsrInclude) {
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// Test that we don't load 'std' if we can't find the C standard library.
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std::string libcpp = "/usr/include/c++/v1";
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std::vector<std::string> files = {// C++ library
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libcpp + "/vector",
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libcpp + "/module.modulemap"};
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CppModuleConfiguration config(makeFiles(files), llvm::Triple());
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EXPECT_THAT(config.GetImportedModules(), testing::ElementsAre());
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EXPECT_THAT(config.GetIncludeDirs(), testing::ElementsAre());
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}
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TEST_F(CppModuleConfigurationTest, MissingLibCpp) {
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// Test that we don't load 'std' if we don't have a libc++.
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std::string usr = "/usr/include";
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std::vector<std::string> files = {
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// C library
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usr + "/stdio.h",
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};
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CppModuleConfiguration config(makeFiles(files), llvm::Triple());
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EXPECT_THAT(config.GetImportedModules(), testing::ElementsAre());
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EXPECT_THAT(config.GetIncludeDirs(), testing::ElementsAre());
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}
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TEST_F(CppModuleConfigurationTest, IgnoreLibStdCpp) {
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// Test that we don't do anything bad when we encounter libstdc++ paths.
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std::string usr = "/usr/include";
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std::vector<std::string> files = {
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// C library
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usr + "/stdio.h",
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// C++ library
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usr + "/c++/8.0.1/vector",
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};
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CppModuleConfiguration config(makeFiles(files), llvm::Triple());
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EXPECT_THAT(config.GetImportedModules(), testing::ElementsAre());
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EXPECT_THAT(config.GetIncludeDirs(), testing::ElementsAre());
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}
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TEST_F(CppModuleConfigurationTest, AmbiguousCLib) {
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// Test that we don't do anything when we are not sure where the
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// right C standard library is.
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std::string usr1 = "/usr/include";
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std::string usr2 = "/usr/include/other/path";
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std::string libcpp = usr1 + "c++/v1";
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std::vector<std::string> files = {
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// First C library
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usr1 + "/stdio.h",
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// Second C library
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usr2 + "/stdio.h",
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// C++ library
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libcpp + "/vector",
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libcpp + "/module.modulemap",
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};
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CppModuleConfiguration config(makeFiles(files), llvm::Triple());
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EXPECT_THAT(config.GetImportedModules(), testing::ElementsAre());
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EXPECT_THAT(config.GetIncludeDirs(), testing::ElementsAre());
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}
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TEST_F(CppModuleConfigurationTest, AmbiguousLibCpp) {
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// Test that we don't do anything when we are not sure where the
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// right libc++ is.
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std::string usr = "/usr/include";
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std::string libcpp1 = usr + "c++/v1";
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std::string libcpp2 = usr + "c++/v2";
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std::vector<std::string> files = {
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// C library
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usr + "/stdio.h",
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// First C++ library
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libcpp1 + "/vector",
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libcpp1 + "/module.modulemap",
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// Second C++ library
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libcpp2 + "/vector",
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libcpp2 + "/module.modulemap",
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};
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CppModuleConfiguration config(makeFiles(files), llvm::Triple());
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EXPECT_THAT(config.GetImportedModules(), testing::ElementsAre());
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EXPECT_THAT(config.GetIncludeDirs(), testing::ElementsAre());
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}
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